xref: /freebsd/sys/dev/wpi/if_wpi.c (revision 735c606726b17b2a878b8775548a385d8d0c8b3c)
16607310bSBenjamin Close /*-
26607310bSBenjamin Close  * Copyright (c) 2006,2007
36607310bSBenjamin Close  *	Damien Bergamini <damien.bergamini@free.fr>
46607310bSBenjamin Close  *	Benjamin Close <Benjamin.Close@clearchain.com>
56607310bSBenjamin Close  *
66607310bSBenjamin Close  * Permission to use, copy, modify, and distribute this software for any
76607310bSBenjamin Close  * purpose with or without fee is hereby granted, provided that the above
86607310bSBenjamin Close  * copyright notice and this permission notice appear in all copies.
96607310bSBenjamin Close  *
106607310bSBenjamin Close  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
116607310bSBenjamin Close  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
126607310bSBenjamin Close  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
136607310bSBenjamin Close  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
146607310bSBenjamin Close  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
156607310bSBenjamin Close  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
166607310bSBenjamin Close  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
176607310bSBenjamin Close  */
186607310bSBenjamin Close 
196607310bSBenjamin Close #include <sys/cdefs.h>
206607310bSBenjamin Close __FBSDID("$FreeBSD$");
216607310bSBenjamin Close 
226607310bSBenjamin Close /*
236607310bSBenjamin Close  * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
246607310bSBenjamin Close  *
256607310bSBenjamin Close  * The 3945ABG network adapter doesn't use traditional hardware as
266607310bSBenjamin Close  * many other adaptors do. Instead at run time the eeprom is set into a known
276607310bSBenjamin Close  * state and told to load boot firmware. The boot firmware loads an init and a
286607310bSBenjamin Close  * main  binary firmware image into SRAM on the card via DMA.
296607310bSBenjamin Close  * Once the firmware is loaded, the driver/hw then
306bccea7cSRebecca Cran  * communicate by way of circular dma rings via the SRAM to the firmware.
316607310bSBenjamin Close  *
326607310bSBenjamin Close  * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
336607310bSBenjamin Close  * The 4 tx data rings allow for prioritization QoS.
346607310bSBenjamin Close  *
356607310bSBenjamin Close  * The rx data ring consists of 32 dma buffers. Two registers are used to
366607310bSBenjamin Close  * indicate where in the ring the driver and the firmware are up to. The
376607310bSBenjamin Close  * driver sets the initial read index (reg1) and the initial write index (reg2),
386607310bSBenjamin Close  * the firmware updates the read index (reg1) on rx of a packet and fires an
396607310bSBenjamin Close  * interrupt. The driver then processes the buffers starting at reg1 indicating
406607310bSBenjamin Close  * to the firmware which buffers have been accessed by updating reg2. At the
416607310bSBenjamin Close  * same time allocating new memory for the processed buffer.
426607310bSBenjamin Close  *
436607310bSBenjamin Close  * A similar thing happens with the tx rings. The difference is the firmware
446607310bSBenjamin Close  * stop processing buffers once the queue is full and until confirmation
45fae61c69SAdrian Chadd  * of a successful transmition (tx_done) has occurred.
466607310bSBenjamin Close  *
476607310bSBenjamin Close  * The command ring operates in the same manner as the tx queues.
486607310bSBenjamin Close  *
496607310bSBenjamin Close  * All communication direct to the card (ie eeprom) is classed as Stage1
506607310bSBenjamin Close  * communication
516607310bSBenjamin Close  *
526607310bSBenjamin Close  * All communication via the firmware to the card is classed as State2.
536607310bSBenjamin Close  * The firmware consists of 2 parts. A bootstrap firmware and a runtime
546607310bSBenjamin Close  * firmware. The bootstrap firmware and runtime firmware are loaded
556607310bSBenjamin Close  * from host memory via dma to the card then told to execute. From this point
566607310bSBenjamin Close  * on the majority of communications between the driver and the card goes
576607310bSBenjamin Close  * via the firmware.
586607310bSBenjamin Close  */
596607310bSBenjamin Close 
6081c2214dSAdrian Chadd #include "opt_wlan.h"
61692ad7caSAdrian Chadd #include "opt_wpi.h"
6281c2214dSAdrian Chadd 
636607310bSBenjamin Close #include <sys/param.h>
646607310bSBenjamin Close #include <sys/sysctl.h>
656607310bSBenjamin Close #include <sys/sockio.h>
666607310bSBenjamin Close #include <sys/mbuf.h>
676607310bSBenjamin Close #include <sys/kernel.h>
686607310bSBenjamin Close #include <sys/socket.h>
696607310bSBenjamin Close #include <sys/systm.h>
706607310bSBenjamin Close #include <sys/malloc.h>
716607310bSBenjamin Close #include <sys/queue.h>
726607310bSBenjamin Close #include <sys/taskqueue.h>
736607310bSBenjamin Close #include <sys/module.h>
746607310bSBenjamin Close #include <sys/bus.h>
756607310bSBenjamin Close #include <sys/endian.h>
766607310bSBenjamin Close #include <sys/linker.h>
776607310bSBenjamin Close #include <sys/firmware.h>
786607310bSBenjamin Close 
796607310bSBenjamin Close #include <machine/bus.h>
806607310bSBenjamin Close #include <machine/resource.h>
816607310bSBenjamin Close #include <sys/rman.h>
826607310bSBenjamin Close 
836607310bSBenjamin Close #include <dev/pci/pcireg.h>
846607310bSBenjamin Close #include <dev/pci/pcivar.h>
856607310bSBenjamin Close 
866607310bSBenjamin Close #include <net/bpf.h>
876607310bSBenjamin Close #include <net/if.h>
8876039bc8SGleb Smirnoff #include <net/if_var.h>
896607310bSBenjamin Close #include <net/if_arp.h>
906607310bSBenjamin Close #include <net/ethernet.h>
916607310bSBenjamin Close #include <net/if_dl.h>
926607310bSBenjamin Close #include <net/if_media.h>
936607310bSBenjamin Close #include <net/if_types.h>
946607310bSBenjamin Close 
95692ad7caSAdrian Chadd #include <netinet/in.h>
96692ad7caSAdrian Chadd #include <netinet/in_systm.h>
97692ad7caSAdrian Chadd #include <netinet/in_var.h>
98692ad7caSAdrian Chadd #include <netinet/if_ether.h>
99692ad7caSAdrian Chadd #include <netinet/ip.h>
100692ad7caSAdrian Chadd 
1016607310bSBenjamin Close #include <net80211/ieee80211_var.h>
1026607310bSBenjamin Close #include <net80211/ieee80211_radiotap.h>
1036607310bSBenjamin Close #include <net80211/ieee80211_regdomain.h>
104b6108616SRui Paulo #include <net80211/ieee80211_ratectl.h>
1056607310bSBenjamin Close 
1066607310bSBenjamin Close #include <dev/wpi/if_wpireg.h>
1076607310bSBenjamin Close #include <dev/wpi/if_wpivar.h>
108692ad7caSAdrian Chadd #include <dev/wpi/if_wpi_debug.h>
1096607310bSBenjamin Close 
1106607310bSBenjamin Close struct wpi_ident {
1116607310bSBenjamin Close 	uint16_t	vendor;
1126607310bSBenjamin Close 	uint16_t	device;
1136607310bSBenjamin Close 	uint16_t	subdevice;
1146607310bSBenjamin Close 	const char	*name;
1156607310bSBenjamin Close };
1166607310bSBenjamin Close 
1176607310bSBenjamin Close static const struct wpi_ident wpi_ident_table[] = {
1186607310bSBenjamin Close 	/* The below entries support ABG regardless of the subid */
1196607310bSBenjamin Close 	{ 0x8086, 0x4222,    0x0, "Intel(R) PRO/Wireless 3945ABG" },
1206607310bSBenjamin Close 	{ 0x8086, 0x4227,    0x0, "Intel(R) PRO/Wireless 3945ABG" },
1216607310bSBenjamin Close 	/* The below entries only support BG */
12234f004ceSBenjamin Close 	{ 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG"  },
12334f004ceSBenjamin Close 	{ 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG"  },
12434f004ceSBenjamin Close 	{ 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG"  },
12534f004ceSBenjamin Close 	{ 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG"  },
1266607310bSBenjamin Close 	{ 0, 0, 0, NULL }
1276607310bSBenjamin Close };
1286607310bSBenjamin Close 
129692ad7caSAdrian Chadd static int	wpi_probe(device_t);
130692ad7caSAdrian Chadd static int	wpi_attach(device_t);
131692ad7caSAdrian Chadd static void	wpi_radiotap_attach(struct wpi_softc *);
132692ad7caSAdrian Chadd static void	wpi_sysctlattach(struct wpi_softc *);
13321f6580eSAdrian Chadd static void	wpi_init_beacon(struct wpi_vap *);
134b032f27cSSam Leffler static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
135fcd9500fSBernhard Schmidt 		    const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
136fcd9500fSBernhard Schmidt 		    const uint8_t [IEEE80211_ADDR_LEN],
137fcd9500fSBernhard Schmidt 		    const uint8_t [IEEE80211_ADDR_LEN]);
138b032f27cSSam Leffler static void	wpi_vap_delete(struct ieee80211vap *);
139692ad7caSAdrian Chadd static int	wpi_detach(device_t);
140692ad7caSAdrian Chadd static int	wpi_shutdown(device_t);
141692ad7caSAdrian Chadd static int	wpi_suspend(device_t);
142692ad7caSAdrian Chadd static int	wpi_resume(device_t);
143692ad7caSAdrian Chadd static int	wpi_nic_lock(struct wpi_softc *);
144692ad7caSAdrian Chadd static int	wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
1456607310bSBenjamin Close static void	wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
146692ad7caSAdrian Chadd static int	wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
147692ad7caSAdrian Chadd 		    void **, bus_size_t, bus_size_t);
148692ad7caSAdrian Chadd static void	wpi_dma_contig_free(struct wpi_dma_info *);
1496607310bSBenjamin Close static int	wpi_alloc_shared(struct wpi_softc *);
1506607310bSBenjamin Close static void	wpi_free_shared(struct wpi_softc *);
1516607310bSBenjamin Close static int	wpi_alloc_fwmem(struct wpi_softc *);
1526607310bSBenjamin Close static void	wpi_free_fwmem(struct wpi_softc *);
153692ad7caSAdrian Chadd static int	wpi_alloc_rx_ring(struct wpi_softc *);
154692ad7caSAdrian Chadd static void	wpi_update_rx_ring(struct wpi_softc *);
155692ad7caSAdrian Chadd static void	wpi_reset_rx_ring(struct wpi_softc *);
156692ad7caSAdrian Chadd static void	wpi_free_rx_ring(struct wpi_softc *);
157692ad7caSAdrian Chadd static int	wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
158692ad7caSAdrian Chadd 		    int);
159692ad7caSAdrian Chadd static void	wpi_update_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
160692ad7caSAdrian Chadd static void	wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
161692ad7caSAdrian Chadd static void	wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
162692ad7caSAdrian Chadd static int	wpi_read_eeprom(struct wpi_softc *,
163692ad7caSAdrian Chadd 		    uint8_t macaddr[IEEE80211_ADDR_LEN]);
164692ad7caSAdrian Chadd static uint32_t	wpi_eeprom_channel_flags(struct wpi_eeprom_chan *);
165692ad7caSAdrian Chadd static void	wpi_read_eeprom_band(struct wpi_softc *, int);
166692ad7caSAdrian Chadd static int	wpi_read_eeprom_channels(struct wpi_softc *, int);
167692ad7caSAdrian Chadd static struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *,
168692ad7caSAdrian Chadd 		    struct ieee80211_channel *);
169692ad7caSAdrian Chadd static int	wpi_setregdomain(struct ieee80211com *,
170692ad7caSAdrian Chadd 		    struct ieee80211_regdomain *, int,
171692ad7caSAdrian Chadd 		    struct ieee80211_channel[]);
172692ad7caSAdrian Chadd static int	wpi_read_eeprom_group(struct wpi_softc *, int);
173eca2eb39SAdrian Chadd static int	wpi_add_node_entry_adhoc(struct wpi_softc *);
174692ad7caSAdrian Chadd static void	wpi_node_free(struct ieee80211_node *);
175692ad7caSAdrian Chadd static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
176692ad7caSAdrian Chadd 		    const uint8_t mac[IEEE80211_ADDR_LEN]);
177692ad7caSAdrian Chadd static int	wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
178692ad7caSAdrian Chadd static void	wpi_calib_timeout(void *);
179692ad7caSAdrian Chadd static void	wpi_rx_done(struct wpi_softc *, struct wpi_rx_desc *,
1806607310bSBenjamin Close 		    struct wpi_rx_data *);
181692ad7caSAdrian Chadd static void	wpi_rx_statistics(struct wpi_softc *, struct wpi_rx_desc *,
182692ad7caSAdrian Chadd 		    struct wpi_rx_data *);
183692ad7caSAdrian Chadd static void	wpi_tx_done(struct wpi_softc *, struct wpi_rx_desc *);
184692ad7caSAdrian Chadd static void	wpi_cmd_done(struct wpi_softc *, struct wpi_rx_desc *);
1856607310bSBenjamin Close static void	wpi_notif_intr(struct wpi_softc *);
186692ad7caSAdrian Chadd static void	wpi_wakeup_intr(struct wpi_softc *);
187692ad7caSAdrian Chadd static void	wpi_fatal_intr(struct wpi_softc *);
1886607310bSBenjamin Close static void	wpi_intr(void *);
189692ad7caSAdrian Chadd static int	wpi_cmd2(struct wpi_softc *, struct wpi_buf *);
1906607310bSBenjamin Close static int	wpi_tx_data(struct wpi_softc *, struct mbuf *,
191692ad7caSAdrian Chadd 		    struct ieee80211_node *);
192692ad7caSAdrian Chadd static int	wpi_tx_data_raw(struct wpi_softc *, struct mbuf *,
193692ad7caSAdrian Chadd 		    struct ieee80211_node *,
194692ad7caSAdrian Chadd 		    const struct ieee80211_bpf_params *);
195b032f27cSSam Leffler static int	wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
196b032f27cSSam Leffler 		    const struct ieee80211_bpf_params *);
197692ad7caSAdrian Chadd static void	wpi_start(struct ifnet *);
198692ad7caSAdrian Chadd static void	wpi_start_locked(struct ifnet *);
1994eaf2ee3SAdrian Chadd static void	wpi_start_task(void *, int);
200692ad7caSAdrian Chadd static void	wpi_watchdog_rfkill(void *);
201692ad7caSAdrian Chadd static void	wpi_watchdog(void *);
202692ad7caSAdrian Chadd static int	wpi_ioctl(struct ifnet *, u_long, caddr_t);
203692ad7caSAdrian Chadd static int	wpi_cmd(struct wpi_softc *, int, const void *, size_t, int);
204692ad7caSAdrian Chadd static int	wpi_mrr_setup(struct wpi_softc *);
205692ad7caSAdrian Chadd static int	wpi_add_node(struct wpi_softc *, struct ieee80211_node *);
206692ad7caSAdrian Chadd static int	wpi_add_broadcast_node(struct wpi_softc *, int);
207692ad7caSAdrian Chadd static int	wpi_add_ibss_node(struct wpi_softc *, struct ieee80211_node *);
208692ad7caSAdrian Chadd static void	wpi_del_node(struct wpi_softc *, struct ieee80211_node *);
209692ad7caSAdrian Chadd static int	wpi_updateedca(struct ieee80211com *);
210692ad7caSAdrian Chadd static void	wpi_set_promisc(struct wpi_softc *);
211692ad7caSAdrian Chadd static void	wpi_update_promisc(struct ifnet *);
212692ad7caSAdrian Chadd static void	wpi_update_mcast(struct ifnet *);
213692ad7caSAdrian Chadd static void	wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
214692ad7caSAdrian Chadd static int	wpi_set_timing(struct wpi_softc *, struct ieee80211_node *);
215692ad7caSAdrian Chadd static void	wpi_power_calibration(struct wpi_softc *);
216692ad7caSAdrian Chadd static int	wpi_set_txpower(struct wpi_softc *, int);
217692ad7caSAdrian Chadd static int	wpi_get_power_index(struct wpi_softc *,
218692ad7caSAdrian Chadd 		    struct wpi_power_group *, struct ieee80211_channel *, int);
219692ad7caSAdrian Chadd static int	wpi_set_pslevel(struct wpi_softc *, uint8_t, int, int);
220692ad7caSAdrian Chadd static int	wpi_send_btcoex(struct wpi_softc *);
221692ad7caSAdrian Chadd static int	wpi_send_rxon(struct wpi_softc *, int, int);
222692ad7caSAdrian Chadd static int	wpi_config(struct wpi_softc *);
223692ad7caSAdrian Chadd static uint16_t	wpi_get_active_dwell_time(struct wpi_softc *,
224692ad7caSAdrian Chadd 		    struct ieee80211_channel *, uint8_t);
225692ad7caSAdrian Chadd static uint16_t	wpi_limit_dwell(struct wpi_softc *, uint16_t);
226692ad7caSAdrian Chadd static uint16_t	wpi_get_passive_dwell_time(struct wpi_softc *,
227692ad7caSAdrian Chadd 		    struct ieee80211_channel *);
228692ad7caSAdrian Chadd static int	wpi_scan(struct wpi_softc *, struct ieee80211_channel *);
229692ad7caSAdrian Chadd static int	wpi_auth(struct wpi_softc *, struct ieee80211vap *);
2306f8421f8SAdrian Chadd static int	wpi_config_beacon(struct wpi_vap *);
231692ad7caSAdrian Chadd static int	wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
2326f8421f8SAdrian Chadd static void	wpi_update_beacon(struct ieee80211vap *, int);
233d138d3baSAdrian Chadd static void	wpi_newassoc(struct ieee80211_node *, int);
234692ad7caSAdrian Chadd static int	wpi_run(struct wpi_softc *, struct ieee80211vap *);
235692ad7caSAdrian Chadd static int	wpi_key_alloc(struct ieee80211vap *, struct ieee80211_key *,
236692ad7caSAdrian Chadd 		    ieee80211_keyix *, ieee80211_keyix *);
237692ad7caSAdrian Chadd static int	wpi_key_set(struct ieee80211vap *,
238692ad7caSAdrian Chadd 		    const struct ieee80211_key *,
239692ad7caSAdrian Chadd 		    const uint8_t mac[IEEE80211_ADDR_LEN]);
240692ad7caSAdrian Chadd static int	wpi_key_delete(struct ieee80211vap *,
241692ad7caSAdrian Chadd 		    const struct ieee80211_key *);
242692ad7caSAdrian Chadd static int	wpi_post_alive(struct wpi_softc *);
243692ad7caSAdrian Chadd static int	wpi_load_bootcode(struct wpi_softc *, const uint8_t *, int);
244692ad7caSAdrian Chadd static int	wpi_load_firmware(struct wpi_softc *);
245692ad7caSAdrian Chadd static int	wpi_read_firmware(struct wpi_softc *);
246692ad7caSAdrian Chadd static void	wpi_unload_firmware(struct wpi_softc *);
247692ad7caSAdrian Chadd static int	wpi_clock_wait(struct wpi_softc *);
248692ad7caSAdrian Chadd static int	wpi_apm_init(struct wpi_softc *);
249692ad7caSAdrian Chadd static void	wpi_apm_stop_master(struct wpi_softc *);
250692ad7caSAdrian Chadd static void	wpi_apm_stop(struct wpi_softc *);
251692ad7caSAdrian Chadd static void	wpi_nic_config(struct wpi_softc *);
252692ad7caSAdrian Chadd static int	wpi_hw_init(struct wpi_softc *);
253692ad7caSAdrian Chadd static void	wpi_hw_stop(struct wpi_softc *);
254692ad7caSAdrian Chadd static void	wpi_radio_on(void *, int);
255692ad7caSAdrian Chadd static void	wpi_radio_off(void *, int);
256692ad7caSAdrian Chadd static void	wpi_init_locked(struct wpi_softc *);
257692ad7caSAdrian Chadd static void	wpi_init(void *);
258692ad7caSAdrian Chadd static void	wpi_stop_locked(struct wpi_softc *);
259692ad7caSAdrian Chadd static void	wpi_stop(struct wpi_softc *);
2606607310bSBenjamin Close static void	wpi_scan_start(struct ieee80211com *);
2616607310bSBenjamin Close static void	wpi_scan_end(struct ieee80211com *);
2626607310bSBenjamin Close static void	wpi_set_channel(struct ieee80211com *);
263b032f27cSSam Leffler static void	wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
264b032f27cSSam Leffler static void	wpi_scan_mindwell(struct ieee80211_scan_state *);
265692ad7caSAdrian Chadd static void	wpi_hw_reset(void *, int);
2666607310bSBenjamin Close 
2676607310bSBenjamin Close static device_method_t wpi_methods[] = {
2686607310bSBenjamin Close 	/* Device interface */
2696607310bSBenjamin Close 	DEVMETHOD(device_probe,		wpi_probe),
2706607310bSBenjamin Close 	DEVMETHOD(device_attach,	wpi_attach),
2716607310bSBenjamin Close 	DEVMETHOD(device_detach,	wpi_detach),
2726607310bSBenjamin Close 	DEVMETHOD(device_shutdown,	wpi_shutdown),
2736607310bSBenjamin Close 	DEVMETHOD(device_suspend,	wpi_suspend),
2746607310bSBenjamin Close 	DEVMETHOD(device_resume,	wpi_resume),
2756607310bSBenjamin Close 
276da67681dSMarius Strobl 	DEVMETHOD_END
2776607310bSBenjamin Close };
2786607310bSBenjamin Close 
2796607310bSBenjamin Close static driver_t wpi_driver = {
2806607310bSBenjamin Close 	"wpi",
2816607310bSBenjamin Close 	wpi_methods,
2826607310bSBenjamin Close 	sizeof (struct wpi_softc)
2836607310bSBenjamin Close };
2846607310bSBenjamin Close static devclass_t wpi_devclass;
2856607310bSBenjamin Close 
286da67681dSMarius Strobl DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL);
2876607310bSBenjamin Close 
288129145a4SBernhard Schmidt MODULE_VERSION(wpi, 1);
289129145a4SBernhard Schmidt 
290692ad7caSAdrian Chadd MODULE_DEPEND(wpi, pci,  1, 1, 1);
291692ad7caSAdrian Chadd MODULE_DEPEND(wpi, wlan, 1, 1, 1);
292692ad7caSAdrian Chadd MODULE_DEPEND(wpi, firmware, 1, 1, 1);
2936607310bSBenjamin Close 
2946607310bSBenjamin Close static int
2956607310bSBenjamin Close wpi_probe(device_t dev)
2966607310bSBenjamin Close {
2976607310bSBenjamin Close 	const struct wpi_ident *ident;
2986607310bSBenjamin Close 
2996607310bSBenjamin Close 	for (ident = wpi_ident_table; ident->name != NULL; ident++) {
3006607310bSBenjamin Close 		if (pci_get_vendor(dev) == ident->vendor &&
3016607310bSBenjamin Close 		    pci_get_device(dev) == ident->device) {
3026607310bSBenjamin Close 			device_set_desc(dev, ident->name);
303da67681dSMarius Strobl 			return (BUS_PROBE_DEFAULT);
3046607310bSBenjamin Close 		}
3056607310bSBenjamin Close 	}
3066607310bSBenjamin Close 	return ENXIO;
3076607310bSBenjamin Close }
3086607310bSBenjamin Close 
3096607310bSBenjamin Close static int
3106607310bSBenjamin Close wpi_attach(device_t dev)
3116607310bSBenjamin Close {
312692ad7caSAdrian Chadd 	struct wpi_softc *sc = (struct wpi_softc *)device_get_softc(dev);
313b032f27cSSam Leffler 	struct ieee80211com *ic;
314692ad7caSAdrian Chadd 	struct ifnet *ifp;
315cb0de40fSAdrian Chadd 	int i, error, rid;
316cb0de40fSAdrian Chadd #ifdef WPI_DEBUG
317cb0de40fSAdrian Chadd 	int supportsa = 1;
3186607310bSBenjamin Close 	const struct wpi_ident *ident;
319cb0de40fSAdrian Chadd #endif
32029aca940SSam Leffler 	uint8_t macaddr[IEEE80211_ADDR_LEN];
3216607310bSBenjamin Close 
3226607310bSBenjamin Close 	sc->sc_dev = dev;
3236607310bSBenjamin Close 
324692ad7caSAdrian Chadd #ifdef WPI_DEBUG
325692ad7caSAdrian Chadd 	error = resource_int_value(device_get_name(sc->sc_dev),
326692ad7caSAdrian Chadd 	    device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug));
327692ad7caSAdrian Chadd 	if (error != 0)
328692ad7caSAdrian Chadd 		sc->sc_debug = 0;
329692ad7caSAdrian Chadd #else
330692ad7caSAdrian Chadd 	sc->sc_debug = 0;
331692ad7caSAdrian Chadd #endif
332692ad7caSAdrian Chadd 
333692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
334692ad7caSAdrian Chadd 
335692ad7caSAdrian Chadd 	/*
336692ad7caSAdrian Chadd 	 * Get the offset of the PCI Express Capability Structure in PCI
337692ad7caSAdrian Chadd 	 * Configuration Space.
338692ad7caSAdrian Chadd 	 */
339692ad7caSAdrian Chadd 	error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off);
340692ad7caSAdrian Chadd 	if (error != 0) {
341692ad7caSAdrian Chadd 		device_printf(dev, "PCIe capability structure not found!\n");
342692ad7caSAdrian Chadd 		return error;
343692ad7caSAdrian Chadd 	}
3446607310bSBenjamin Close 
3456607310bSBenjamin Close 	/*
3466607310bSBenjamin Close 	 * Some card's only support 802.11b/g not a, check to see if
3476607310bSBenjamin Close 	 * this is one such card. A 0x0 in the subdevice table indicates
3486607310bSBenjamin Close 	 * the entire subdevice range is to be ignored.
3496607310bSBenjamin Close 	 */
350cb0de40fSAdrian Chadd #ifdef WPI_DEBUG
3516607310bSBenjamin Close 	for (ident = wpi_ident_table; ident->name != NULL; ident++) {
3526607310bSBenjamin Close 		if (ident->subdevice &&
3536607310bSBenjamin Close 		    pci_get_subdevice(dev) == ident->subdevice) {
3546607310bSBenjamin Close 		    supportsa = 0;
3556607310bSBenjamin Close 		    break;
3566607310bSBenjamin Close 		}
3576607310bSBenjamin Close 	}
358cb0de40fSAdrian Chadd #endif
3596607310bSBenjamin Close 
360692ad7caSAdrian Chadd 	/* Clear device-specific "PCI retry timeout" register (41h). */
3616607310bSBenjamin Close 	pci_write_config(dev, 0x41, 0, 1);
3626607310bSBenjamin Close 
363692ad7caSAdrian Chadd 	/* Enable bus-mastering. */
3646607310bSBenjamin Close 	pci_enable_busmaster(dev);
3656607310bSBenjamin Close 
366da67681dSMarius Strobl 	rid = PCIR_BAR(0);
367da67681dSMarius Strobl 	sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
3686607310bSBenjamin Close 	    RF_ACTIVE);
3696607310bSBenjamin Close 	if (sc->mem == NULL) {
370692ad7caSAdrian Chadd 		device_printf(dev, "can't map mem space\n");
3716607310bSBenjamin Close 		error = ENOMEM;
372692ad7caSAdrian Chadd 		return error;
3736607310bSBenjamin Close 	}
3746607310bSBenjamin Close 	sc->sc_st = rman_get_bustag(sc->mem);
3756607310bSBenjamin Close 	sc->sc_sh = rman_get_bushandle(sc->mem);
3766607310bSBenjamin Close 
377692ad7caSAdrian Chadd 	i = 1;
378da67681dSMarius Strobl 	rid = 0;
379692ad7caSAdrian Chadd 	if (pci_alloc_msi(dev, &i) == 0)
380692ad7caSAdrian Chadd 		rid = 1;
381692ad7caSAdrian Chadd 	/* Install interrupt handler. */
382692ad7caSAdrian Chadd 	sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
383692ad7caSAdrian Chadd 	    (rid != 0 ? 0 : RF_SHAREABLE));
3846607310bSBenjamin Close 	if (sc->irq == NULL) {
385692ad7caSAdrian Chadd 		device_printf(dev, "can't map interrupt\n");
3866607310bSBenjamin Close 		error = ENOMEM;
3876607310bSBenjamin Close 		goto fail;
3886607310bSBenjamin Close 	}
3896607310bSBenjamin Close 
390692ad7caSAdrian Chadd 	WPI_LOCK_INIT(sc);
3917964dd56SAdrian Chadd 	WPI_NT_LOCK_INIT(sc);
39263f57699SAdrian Chadd 	WPI_TXQ_LOCK_INIT(sc);
393692ad7caSAdrian Chadd 
394692ad7caSAdrian Chadd 	/* Allocate DMA memory for firmware transfers. */
3956607310bSBenjamin Close 	if ((error = wpi_alloc_fwmem(sc)) != 0) {
396692ad7caSAdrian Chadd 		device_printf(dev,
397692ad7caSAdrian Chadd 		    "could not allocate memory for firmware, error %d\n",
398692ad7caSAdrian Chadd 		    error);
3996607310bSBenjamin Close 		goto fail;
4006607310bSBenjamin Close 	}
4016607310bSBenjamin Close 
402692ad7caSAdrian Chadd 	/* Allocate shared page. */
4036607310bSBenjamin Close 	if ((error = wpi_alloc_shared(sc)) != 0) {
4046607310bSBenjamin Close 		device_printf(dev, "could not allocate shared page\n");
4056607310bSBenjamin Close 		goto fail;
4066607310bSBenjamin Close 	}
4076607310bSBenjamin Close 
408692ad7caSAdrian Chadd 	/* Allocate TX rings - 4 for QoS purposes, 1 for commands. */
409692ad7caSAdrian Chadd 	for (i = 0; i < WPI_NTXQUEUES; i++) {
410692ad7caSAdrian Chadd 		if ((error = wpi_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) {
411692ad7caSAdrian Chadd 			device_printf(dev,
412692ad7caSAdrian Chadd 			    "could not allocate TX ring %d, error %d\n", i,
413692ad7caSAdrian Chadd 			    error);
4146607310bSBenjamin Close 			goto fail;
4156607310bSBenjamin Close 		}
4166607310bSBenjamin Close 	}
4176607310bSBenjamin Close 
418692ad7caSAdrian Chadd 	/* Allocate RX ring. */
419692ad7caSAdrian Chadd 	if ((error = wpi_alloc_rx_ring(sc)) != 0) {
420692ad7caSAdrian Chadd 		device_printf(dev, "could not allocate RX ring, error %d\n",
421692ad7caSAdrian Chadd 		    error);
4226607310bSBenjamin Close 		goto fail;
4236607310bSBenjamin Close 	}
4246607310bSBenjamin Close 
425692ad7caSAdrian Chadd 	/* Clear pending interrupts. */
426692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT, 0xffffffff);
4276607310bSBenjamin Close 
428b032f27cSSam Leffler 	ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
4296607310bSBenjamin Close 	if (ifp == NULL) {
430692ad7caSAdrian Chadd 		device_printf(dev, "can not allocate ifnet structure\n");
4316607310bSBenjamin Close 		goto fail;
4326607310bSBenjamin Close 	}
4336607310bSBenjamin Close 
434692ad7caSAdrian Chadd 	ic = ifp->if_l2com;
4356607310bSBenjamin Close 	ic->ic_ifp = ifp;
4366607310bSBenjamin Close 	ic->ic_phytype = IEEE80211_T_OFDM;	/* not only, but not used */
4376607310bSBenjamin Close 	ic->ic_opmode = IEEE80211_M_STA;	/* default to BSS mode */
4386607310bSBenjamin Close 
439692ad7caSAdrian Chadd 	/* Set device capabilities. */
4406607310bSBenjamin Close 	ic->ic_caps =
441c43feedeSSam Leffler 		  IEEE80211_C_STA		/* station mode supported */
442692ad7caSAdrian Chadd 		| IEEE80211_C_IBSS		/* IBSS mode supported */
443c43feedeSSam Leffler 		| IEEE80211_C_MONITOR		/* monitor mode supported */
444692ad7caSAdrian Chadd 		| IEEE80211_C_AHDEMO		/* adhoc demo mode */
445692ad7caSAdrian Chadd 		| IEEE80211_C_BGSCAN		/* capable of bg scanning */
4466607310bSBenjamin Close 		| IEEE80211_C_TXPMGT		/* tx power management */
4476607310bSBenjamin Close 		| IEEE80211_C_SHSLOT		/* short slot time supported */
4486607310bSBenjamin Close 		| IEEE80211_C_WPA		/* 802.11i */
449692ad7caSAdrian Chadd 		| IEEE80211_C_SHPREAMBLE	/* short preamble supported */
4506607310bSBenjamin Close #if 0
4516607310bSBenjamin Close 		| IEEE80211_C_HOSTAP		/* Host access point mode */
4526607310bSBenjamin Close #endif
453692ad7caSAdrian Chadd 		| IEEE80211_C_WME		/* 802.11e */
454692ad7caSAdrian Chadd 		| IEEE80211_C_PMGT		/* Station-side power mgmt */
4556607310bSBenjamin Close 		;
4566607310bSBenjamin Close 
457692ad7caSAdrian Chadd 	ic->ic_cryptocaps =
458692ad7caSAdrian Chadd 		  IEEE80211_CRYPTO_AES_CCM;
459692ad7caSAdrian Chadd 
4606607310bSBenjamin Close 	/*
4616607310bSBenjamin Close 	 * Read in the eeprom and also setup the channels for
4626607310bSBenjamin Close 	 * net80211. We don't set the rates as net80211 does this for us
4636607310bSBenjamin Close 	 */
464692ad7caSAdrian Chadd 	if ((error = wpi_read_eeprom(sc, macaddr)) != 0) {
465692ad7caSAdrian Chadd 		device_printf(dev, "could not read EEPROM, error %d\n",
466692ad7caSAdrian Chadd 		    error);
467692ad7caSAdrian Chadd 		goto fail;
468692ad7caSAdrian Chadd 	}
4696607310bSBenjamin Close 
470692ad7caSAdrian Chadd #ifdef WPI_DEBUG
471692ad7caSAdrian Chadd 	if (bootverbose) {
472bb086d4eSAdrian Chadd 		device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n",
473bb086d4eSAdrian Chadd 		    sc->domain);
4746607310bSBenjamin Close 		device_printf(sc->sc_dev, "Hardware Type: %c\n",
4756607310bSBenjamin Close 		    sc->type > 1 ? 'B': '?');
4766607310bSBenjamin Close 		device_printf(sc->sc_dev, "Hardware Revision: %c\n",
477f736d898SAdrian Chadd 		    ((sc->rev & 0xf0) == 0xd0) ? 'D': '?');
4786607310bSBenjamin Close 		device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
4796607310bSBenjamin Close 		    supportsa ? "does" : "does not");
4806607310bSBenjamin Close 
481bb086d4eSAdrian Chadd 		/* XXX hw_config uses the PCIDEV for the Hardware rev. Must
482bb086d4eSAdrian Chadd 		   check what sc->rev really represents - benjsc 20070615 */
4836607310bSBenjamin Close 	}
484692ad7caSAdrian Chadd #endif
4856607310bSBenjamin Close 
4866607310bSBenjamin Close 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
4876607310bSBenjamin Close 	ifp->if_softc = sc;
4886607310bSBenjamin Close 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
4896607310bSBenjamin Close 	ifp->if_init = wpi_init;
4906607310bSBenjamin Close 	ifp->if_ioctl = wpi_ioctl;
4916607310bSBenjamin Close 	ifp->if_start = wpi_start;
492e50d35e6SMaxim Sobolev 	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
493e50d35e6SMaxim Sobolev 	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
4946607310bSBenjamin Close 	IFQ_SET_READY(&ifp->if_snd);
4956607310bSBenjamin Close 
49629aca940SSam Leffler 	ieee80211_ifattach(ic, macaddr);
497692ad7caSAdrian Chadd 	ic->ic_vap_create = wpi_vap_create;
498692ad7caSAdrian Chadd 	ic->ic_vap_delete = wpi_vap_delete;
499b032f27cSSam Leffler 	ic->ic_raw_xmit = wpi_raw_xmit;
500692ad7caSAdrian Chadd 	ic->ic_node_alloc = wpi_node_alloc;
501692ad7caSAdrian Chadd 	sc->sc_node_free = ic->ic_node_free;
502692ad7caSAdrian Chadd 	ic->ic_node_free = wpi_node_free;
503692ad7caSAdrian Chadd 	ic->ic_wme.wme_update = wpi_updateedca;
504692ad7caSAdrian Chadd 	ic->ic_update_promisc = wpi_update_promisc;
505692ad7caSAdrian Chadd 	ic->ic_update_mcast = wpi_update_mcast;
506d138d3baSAdrian Chadd 	ic->ic_newassoc = wpi_newassoc;
5076607310bSBenjamin Close 	ic->ic_scan_start = wpi_scan_start;
5086607310bSBenjamin Close 	ic->ic_scan_end = wpi_scan_end;
5096607310bSBenjamin Close 	ic->ic_set_channel = wpi_set_channel;
510692ad7caSAdrian Chadd 	sc->sc_scan_curchan = ic->ic_scan_curchan;
5116607310bSBenjamin Close 	ic->ic_scan_curchan = wpi_scan_curchan;
5126607310bSBenjamin Close 	ic->ic_scan_mindwell = wpi_scan_mindwell;
513692ad7caSAdrian Chadd 	ic->ic_setregdomain = wpi_setregdomain;
5146607310bSBenjamin Close 
515692ad7caSAdrian Chadd 	wpi_radiotap_attach(sc);
5166607310bSBenjamin Close 
517692ad7caSAdrian Chadd 	callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
518692ad7caSAdrian Chadd 	callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
519692ad7caSAdrian Chadd 	callout_init_mtx(&sc->watchdog_rfkill, &sc->sc_mtx, 0);
520692ad7caSAdrian Chadd 	TASK_INIT(&sc->sc_reinittask, 0, wpi_hw_reset, sc);
521692ad7caSAdrian Chadd 	TASK_INIT(&sc->sc_radiooff_task, 0, wpi_radio_off, sc);
522692ad7caSAdrian Chadd 	TASK_INIT(&sc->sc_radioon_task, 0, wpi_radio_on, sc);
5234eaf2ee3SAdrian Chadd 	TASK_INIT(&sc->sc_start_task, 0, wpi_start_task, sc);
524692ad7caSAdrian Chadd 
525692ad7caSAdrian Chadd 	wpi_sysctlattach(sc);
5266607310bSBenjamin Close 
5276607310bSBenjamin Close 	/*
5286607310bSBenjamin Close 	 * Hook our interrupt after all initialization is complete.
5296607310bSBenjamin Close 	 */
5306607310bSBenjamin Close 	error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
53182f1b132SAndrew Thompson 	    NULL, wpi_intr, sc, &sc->sc_ih);
5326607310bSBenjamin Close 	if (error != 0) {
533692ad7caSAdrian Chadd 		device_printf(dev, "can't establish interrupt, error %d\n",
534692ad7caSAdrian Chadd 		    error);
5356607310bSBenjamin Close 		goto fail;
5366607310bSBenjamin Close 	}
5376607310bSBenjamin Close 
53882f1b132SAndrew Thompson 	if (bootverbose)
5396607310bSBenjamin Close 		ieee80211_announce(ic);
540692ad7caSAdrian Chadd 
541692ad7caSAdrian Chadd #ifdef WPI_DEBUG
542692ad7caSAdrian Chadd 	if (sc->sc_debug & WPI_DEBUG_HW)
5436607310bSBenjamin Close 		ieee80211_announce_channels(ic);
5446607310bSBenjamin Close #endif
545692ad7caSAdrian Chadd 
546692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5476607310bSBenjamin Close 	return 0;
5486607310bSBenjamin Close 
5496607310bSBenjamin Close fail:	wpi_detach(dev);
550692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
551692ad7caSAdrian Chadd 	return error;
5526607310bSBenjamin Close }
5536607310bSBenjamin Close 
554692ad7caSAdrian Chadd /*
555692ad7caSAdrian Chadd  * Attach the interface to 802.11 radiotap.
556692ad7caSAdrian Chadd  */
557692ad7caSAdrian Chadd static void
558692ad7caSAdrian Chadd wpi_radiotap_attach(struct wpi_softc *sc)
5596607310bSBenjamin Close {
560b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
561692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
562692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
563692ad7caSAdrian Chadd 	ieee80211_radiotap_attach(ic,
564692ad7caSAdrian Chadd 	    &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
565692ad7caSAdrian Chadd 		WPI_TX_RADIOTAP_PRESENT,
566692ad7caSAdrian Chadd 	    &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
567692ad7caSAdrian Chadd 		WPI_RX_RADIOTAP_PRESENT);
568692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5696607310bSBenjamin Close }
5706607310bSBenjamin Close 
571692ad7caSAdrian Chadd static void
572692ad7caSAdrian Chadd wpi_sysctlattach(struct wpi_softc *sc)
573692ad7caSAdrian Chadd {
574692ad7caSAdrian Chadd #ifdef WPI_DEBUG
575692ad7caSAdrian Chadd 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
576692ad7caSAdrian Chadd 	struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
5776607310bSBenjamin Close 
578692ad7caSAdrian Chadd 	SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
579692ad7caSAdrian Chadd 	    "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug,
580692ad7caSAdrian Chadd 		"control debugging printfs");
581692ad7caSAdrian Chadd #endif
5826607310bSBenjamin Close }
5836607310bSBenjamin Close 
58421f6580eSAdrian Chadd static void
58521f6580eSAdrian Chadd wpi_init_beacon(struct wpi_vap *wvp)
58621f6580eSAdrian Chadd {
58721f6580eSAdrian Chadd 	struct wpi_buf *bcn = &wvp->wv_bcbuf;
58821f6580eSAdrian Chadd 	struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
58921f6580eSAdrian Chadd 
59021f6580eSAdrian Chadd 	cmd->id = WPI_ID_BROADCAST;
59121f6580eSAdrian Chadd 	cmd->ofdm_mask = 0xff;
59221f6580eSAdrian Chadd 	cmd->cck_mask = 0x0f;
59321f6580eSAdrian Chadd 	cmd->lifetime = htole32(WPI_LIFETIME_INFINITE);
59421f6580eSAdrian Chadd 	cmd->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
59521f6580eSAdrian Chadd 
59621f6580eSAdrian Chadd 	bcn->code = WPI_CMD_SET_BEACON;
59721f6580eSAdrian Chadd 	bcn->ac = WPI_CMD_QUEUE_NUM;
59821f6580eSAdrian Chadd 	bcn->size = sizeof(struct wpi_cmd_beacon);
59921f6580eSAdrian Chadd }
60021f6580eSAdrian Chadd 
601b032f27cSSam Leffler static struct ieee80211vap *
602fcd9500fSBernhard Schmidt wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
603fcd9500fSBernhard Schmidt     enum ieee80211_opmode opmode, int flags,
604b032f27cSSam Leffler     const uint8_t bssid[IEEE80211_ADDR_LEN],
605b032f27cSSam Leffler     const uint8_t mac[IEEE80211_ADDR_LEN])
606b032f27cSSam Leffler {
607b032f27cSSam Leffler 	struct wpi_vap *wvp;
608b032f27cSSam Leffler 	struct ieee80211vap *vap;
609b032f27cSSam Leffler 
610b032f27cSSam Leffler 	if (!TAILQ_EMPTY(&ic->ic_vaps))		/* only one at a time */
611b032f27cSSam Leffler 		return NULL;
612692ad7caSAdrian Chadd 
613b032f27cSSam Leffler 	wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
614b032f27cSSam Leffler 	    M_80211_VAP, M_NOWAIT | M_ZERO);
615b032f27cSSam Leffler 	if (wvp == NULL)
616b032f27cSSam Leffler 		return NULL;
617d036bb20SAdrian Chadd 	vap = &wvp->wv_vap;
618b032f27cSSam Leffler 	ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
619692ad7caSAdrian Chadd 
620b56fed3dSAdrian Chadd 	if (opmode == IEEE80211_M_IBSS) {
621b56fed3dSAdrian Chadd 		WPI_VAP_LOCK_INIT(wvp);
62221f6580eSAdrian Chadd 		wpi_init_beacon(wvp);
623b56fed3dSAdrian Chadd 	}
62421f6580eSAdrian Chadd 
625692ad7caSAdrian Chadd 	/* Override with driver methods. */
626692ad7caSAdrian Chadd 	vap->iv_key_alloc = wpi_key_alloc;
627692ad7caSAdrian Chadd 	vap->iv_key_set = wpi_key_set;
628692ad7caSAdrian Chadd 	vap->iv_key_delete = wpi_key_delete;
629d036bb20SAdrian Chadd 	wvp->wv_newstate = vap->iv_newstate;
630b032f27cSSam Leffler 	vap->iv_newstate = wpi_newstate;
631692ad7caSAdrian Chadd 	vap->iv_update_beacon = wpi_update_beacon;
632b032f27cSSam Leffler 
633b6108616SRui Paulo 	ieee80211_ratectl_init(vap);
634692ad7caSAdrian Chadd 	/* Complete setup. */
6357167f5fcSAdrian Chadd 	ieee80211_vap_attach(vap, ieee80211_media_change,
6367167f5fcSAdrian Chadd 	    ieee80211_media_status);
637b032f27cSSam Leffler 	ic->ic_opmode = opmode;
638b032f27cSSam Leffler 	return vap;
639b032f27cSSam Leffler }
640b032f27cSSam Leffler 
641b032f27cSSam Leffler static void
642b032f27cSSam Leffler wpi_vap_delete(struct ieee80211vap *vap)
643b032f27cSSam Leffler {
644b032f27cSSam Leffler 	struct wpi_vap *wvp = WPI_VAP(vap);
6456f8421f8SAdrian Chadd 	struct wpi_buf *bcn = &wvp->wv_bcbuf;
6466f8421f8SAdrian Chadd 	enum ieee80211_opmode opmode = vap->iv_opmode;
647b032f27cSSam Leffler 
648b6108616SRui Paulo 	ieee80211_ratectl_deinit(vap);
649b032f27cSSam Leffler 	ieee80211_vap_detach(vap);
650692ad7caSAdrian Chadd 
6516f8421f8SAdrian Chadd 	if (opmode == IEEE80211_M_IBSS) {
6526f8421f8SAdrian Chadd 		if (bcn->m != NULL)
6536f8421f8SAdrian Chadd 			m_freem(bcn->m);
654b56fed3dSAdrian Chadd 
655b56fed3dSAdrian Chadd 		WPI_VAP_LOCK_DESTROY(wvp);
6566f8421f8SAdrian Chadd 	}
6576f8421f8SAdrian Chadd 
658b032f27cSSam Leffler 	free(wvp, M_80211_VAP);
659b032f27cSSam Leffler }
660b032f27cSSam Leffler 
6616607310bSBenjamin Close static int
662692ad7caSAdrian Chadd wpi_detach(device_t dev)
6636607310bSBenjamin Close {
664692ad7caSAdrian Chadd 	struct wpi_softc *sc = device_get_softc(dev);
665692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
666692ad7caSAdrian Chadd 	struct ieee80211com *ic;
667692ad7caSAdrian Chadd 	int qid;
6686607310bSBenjamin Close 
669692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
6706607310bSBenjamin Close 
671692ad7caSAdrian Chadd 	if (ifp != NULL) {
672692ad7caSAdrian Chadd 		ic = ifp->if_l2com;
6736607310bSBenjamin Close 
674692ad7caSAdrian Chadd 		ieee80211_draintask(ic, &sc->sc_reinittask);
675692ad7caSAdrian Chadd 		ieee80211_draintask(ic, &sc->sc_radiooff_task);
6760c66281cSAdrian Chadd 		ieee80211_draintask(ic, &sc->sc_radioon_task);
6774eaf2ee3SAdrian Chadd 		ieee80211_draintask(ic, &sc->sc_start_task);
678692ad7caSAdrian Chadd 
679692ad7caSAdrian Chadd 		wpi_stop(sc);
680692ad7caSAdrian Chadd 
681692ad7caSAdrian Chadd 		callout_drain(&sc->watchdog_to);
682692ad7caSAdrian Chadd 		callout_drain(&sc->watchdog_rfkill);
683692ad7caSAdrian Chadd 		callout_drain(&sc->calib_to);
684692ad7caSAdrian Chadd 		ieee80211_ifdetach(ic);
6856607310bSBenjamin Close 	}
6866607310bSBenjamin Close 
687692ad7caSAdrian Chadd 	/* Uninstall interrupt handler. */
688692ad7caSAdrian Chadd 	if (sc->irq != NULL) {
689692ad7caSAdrian Chadd 		bus_teardown_intr(dev, sc->irq, sc->sc_ih);
690692ad7caSAdrian Chadd 		bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
691692ad7caSAdrian Chadd 		    sc->irq);
692692ad7caSAdrian Chadd 		pci_release_msi(dev);
69382f1b132SAndrew Thompson 	}
6946607310bSBenjamin Close 
695692ad7caSAdrian Chadd 	if (sc->txq[0].data_dmat) {
696692ad7caSAdrian Chadd 		/* Free DMA resources. */
697692ad7caSAdrian Chadd 		for (qid = 0; qid < WPI_NTXQUEUES; qid++)
698692ad7caSAdrian Chadd 			wpi_free_tx_ring(sc, &sc->txq[qid]);
699692ad7caSAdrian Chadd 
700692ad7caSAdrian Chadd 		wpi_free_rx_ring(sc);
701692ad7caSAdrian Chadd 		wpi_free_shared(sc);
7026607310bSBenjamin Close 	}
7036607310bSBenjamin Close 
704692ad7caSAdrian Chadd 	if (sc->fw_dma.tag)
705692ad7caSAdrian Chadd 		wpi_free_fwmem(sc);
7066607310bSBenjamin Close 
707692ad7caSAdrian Chadd 	if (sc->mem != NULL)
708692ad7caSAdrian Chadd 		bus_release_resource(dev, SYS_RES_MEMORY,
709692ad7caSAdrian Chadd 		    rman_get_rid(sc->mem), sc->mem);
710692ad7caSAdrian Chadd 
711692ad7caSAdrian Chadd 	if (ifp != NULL)
712692ad7caSAdrian Chadd 		if_free(ifp);
713692ad7caSAdrian Chadd 
714692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
71563f57699SAdrian Chadd 	WPI_TXQ_LOCK_DESTROY(sc);
7167964dd56SAdrian Chadd 	WPI_NT_LOCK_DESTROY(sc);
717692ad7caSAdrian Chadd 	WPI_LOCK_DESTROY(sc);
7186607310bSBenjamin Close 	return 0;
7196607310bSBenjamin Close }
7206607310bSBenjamin Close 
7216607310bSBenjamin Close static int
7226607310bSBenjamin Close wpi_shutdown(device_t dev)
7236607310bSBenjamin Close {
7246607310bSBenjamin Close 	struct wpi_softc *sc = device_get_softc(dev);
7256607310bSBenjamin Close 
726692ad7caSAdrian Chadd 	wpi_stop(sc);
7276607310bSBenjamin Close 	return 0;
7286607310bSBenjamin Close }
7296607310bSBenjamin Close 
7306607310bSBenjamin Close static int
7316607310bSBenjamin Close wpi_suspend(device_t dev)
7326607310bSBenjamin Close {
7336607310bSBenjamin Close 	struct wpi_softc *sc = device_get_softc(dev);
734ada977b1SBernhard Schmidt 	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
7356607310bSBenjamin Close 
736ada977b1SBernhard Schmidt 	ieee80211_suspend_all(ic);
7376607310bSBenjamin Close 	return 0;
7386607310bSBenjamin Close }
7396607310bSBenjamin Close 
7406607310bSBenjamin Close static int
7416607310bSBenjamin Close wpi_resume(device_t dev)
7426607310bSBenjamin Close {
7436607310bSBenjamin Close 	struct wpi_softc *sc = device_get_softc(dev);
744ada977b1SBernhard Schmidt 	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
7456607310bSBenjamin Close 
746692ad7caSAdrian Chadd 	/* Clear device-specific "PCI retry timeout" register (41h). */
7476607310bSBenjamin Close 	pci_write_config(dev, 0x41, 0, 1);
7486607310bSBenjamin Close 
749ada977b1SBernhard Schmidt 	ieee80211_resume_all(ic);
7506607310bSBenjamin Close 	return 0;
7516607310bSBenjamin Close }
7526607310bSBenjamin Close 
753692ad7caSAdrian Chadd /*
754692ad7caSAdrian Chadd  * Grab exclusive access to NIC memory.
755692ad7caSAdrian Chadd  */
756692ad7caSAdrian Chadd static int
757692ad7caSAdrian Chadd wpi_nic_lock(struct wpi_softc *sc)
758692ad7caSAdrian Chadd {
759692ad7caSAdrian Chadd 	int ntries;
760692ad7caSAdrian Chadd 
761692ad7caSAdrian Chadd 	/* Request exclusive access to NIC. */
762692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
763692ad7caSAdrian Chadd 
764692ad7caSAdrian Chadd 	/* Spin until we actually get the lock. */
765692ad7caSAdrian Chadd 	for (ntries = 0; ntries < 1000; ntries++) {
766692ad7caSAdrian Chadd 		if ((WPI_READ(sc, WPI_GP_CNTRL) &
767692ad7caSAdrian Chadd 		    (WPI_GP_CNTRL_MAC_ACCESS_ENA | WPI_GP_CNTRL_SLEEP)) ==
768692ad7caSAdrian Chadd 		    WPI_GP_CNTRL_MAC_ACCESS_ENA)
769692ad7caSAdrian Chadd 			return 0;
770692ad7caSAdrian Chadd 		DELAY(10);
771692ad7caSAdrian Chadd 	}
772692ad7caSAdrian Chadd 
773692ad7caSAdrian Chadd 	device_printf(sc->sc_dev, "could not lock memory\n");
774692ad7caSAdrian Chadd 
775692ad7caSAdrian Chadd 	return ETIMEDOUT;
776692ad7caSAdrian Chadd }
777692ad7caSAdrian Chadd 
778692ad7caSAdrian Chadd /*
779692ad7caSAdrian Chadd  * Release lock on NIC memory.
780692ad7caSAdrian Chadd  */
781692ad7caSAdrian Chadd static __inline void
782692ad7caSAdrian Chadd wpi_nic_unlock(struct wpi_softc *sc)
783692ad7caSAdrian Chadd {
784692ad7caSAdrian Chadd 	WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
785692ad7caSAdrian Chadd }
786692ad7caSAdrian Chadd 
787692ad7caSAdrian Chadd static __inline uint32_t
788692ad7caSAdrian Chadd wpi_prph_read(struct wpi_softc *sc, uint32_t addr)
789692ad7caSAdrian Chadd {
790692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_PRPH_RADDR, WPI_PRPH_DWORD | addr);
791692ad7caSAdrian Chadd 	WPI_BARRIER_READ_WRITE(sc);
792692ad7caSAdrian Chadd 	return WPI_READ(sc, WPI_PRPH_RDATA);
793692ad7caSAdrian Chadd }
794692ad7caSAdrian Chadd 
795692ad7caSAdrian Chadd static __inline void
796692ad7caSAdrian Chadd wpi_prph_write(struct wpi_softc *sc, uint32_t addr, uint32_t data)
797692ad7caSAdrian Chadd {
798692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_PRPH_WADDR, WPI_PRPH_DWORD | addr);
799692ad7caSAdrian Chadd 	WPI_BARRIER_WRITE(sc);
800692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_PRPH_WDATA, data);
801692ad7caSAdrian Chadd }
802692ad7caSAdrian Chadd 
803692ad7caSAdrian Chadd static __inline void
804692ad7caSAdrian Chadd wpi_prph_setbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
805692ad7caSAdrian Chadd {
806692ad7caSAdrian Chadd 	wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask);
807692ad7caSAdrian Chadd }
808692ad7caSAdrian Chadd 
809692ad7caSAdrian Chadd static __inline void
810692ad7caSAdrian Chadd wpi_prph_clrbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask)
811692ad7caSAdrian Chadd {
812692ad7caSAdrian Chadd 	wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask);
813692ad7caSAdrian Chadd }
814692ad7caSAdrian Chadd 
815692ad7caSAdrian Chadd static __inline void
816692ad7caSAdrian Chadd wpi_prph_write_region_4(struct wpi_softc *sc, uint32_t addr,
817692ad7caSAdrian Chadd     const uint32_t *data, int count)
818692ad7caSAdrian Chadd {
819692ad7caSAdrian Chadd 	for (; count > 0; count--, data++, addr += 4)
820692ad7caSAdrian Chadd 		wpi_prph_write(sc, addr, *data);
821692ad7caSAdrian Chadd }
822692ad7caSAdrian Chadd 
823692ad7caSAdrian Chadd static __inline uint32_t
824692ad7caSAdrian Chadd wpi_mem_read(struct wpi_softc *sc, uint32_t addr)
825692ad7caSAdrian Chadd {
826692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_MEM_RADDR, addr);
827692ad7caSAdrian Chadd 	WPI_BARRIER_READ_WRITE(sc);
828692ad7caSAdrian Chadd 	return WPI_READ(sc, WPI_MEM_RDATA);
829692ad7caSAdrian Chadd }
830692ad7caSAdrian Chadd 
831692ad7caSAdrian Chadd static __inline void
832692ad7caSAdrian Chadd wpi_mem_read_region_4(struct wpi_softc *sc, uint32_t addr, uint32_t *data,
833692ad7caSAdrian Chadd     int count)
834692ad7caSAdrian Chadd {
835692ad7caSAdrian Chadd 	for (; count > 0; count--, addr += 4)
836692ad7caSAdrian Chadd 		*data++ = wpi_mem_read(sc, addr);
837692ad7caSAdrian Chadd }
838692ad7caSAdrian Chadd 
839692ad7caSAdrian Chadd static int
840692ad7caSAdrian Chadd wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int count)
841692ad7caSAdrian Chadd {
842692ad7caSAdrian Chadd 	uint8_t *out = data;
843692ad7caSAdrian Chadd 	uint32_t val;
844692ad7caSAdrian Chadd 	int error, ntries;
845692ad7caSAdrian Chadd 
846692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
847692ad7caSAdrian Chadd 
848692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
849692ad7caSAdrian Chadd 		return error;
850692ad7caSAdrian Chadd 
851692ad7caSAdrian Chadd 	for (; count > 0; count -= 2, addr++) {
852692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_EEPROM, addr << 2);
853692ad7caSAdrian Chadd 		for (ntries = 0; ntries < 10; ntries++) {
854692ad7caSAdrian Chadd 			val = WPI_READ(sc, WPI_EEPROM);
855692ad7caSAdrian Chadd 			if (val & WPI_EEPROM_READ_VALID)
856692ad7caSAdrian Chadd 				break;
857692ad7caSAdrian Chadd 			DELAY(5);
858692ad7caSAdrian Chadd 		}
859692ad7caSAdrian Chadd 		if (ntries == 10) {
860692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
861692ad7caSAdrian Chadd 			    "timeout reading ROM at 0x%x\n", addr);
862692ad7caSAdrian Chadd 			return ETIMEDOUT;
863692ad7caSAdrian Chadd 		}
864692ad7caSAdrian Chadd 		*out++= val >> 16;
865692ad7caSAdrian Chadd 		if (count > 1)
866692ad7caSAdrian Chadd 			*out ++= val >> 24;
867692ad7caSAdrian Chadd 	}
868692ad7caSAdrian Chadd 
869692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
870692ad7caSAdrian Chadd 
871692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
872692ad7caSAdrian Chadd 
873692ad7caSAdrian Chadd 	return 0;
874692ad7caSAdrian Chadd }
875692ad7caSAdrian Chadd 
876692ad7caSAdrian Chadd static void
877692ad7caSAdrian Chadd wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
878692ad7caSAdrian Chadd {
879692ad7caSAdrian Chadd 	if (error != 0)
880692ad7caSAdrian Chadd 		return;
881692ad7caSAdrian Chadd 	KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
882692ad7caSAdrian Chadd 	*(bus_addr_t *)arg = segs[0].ds_addr;
883692ad7caSAdrian Chadd }
884692ad7caSAdrian Chadd 
885692ad7caSAdrian Chadd /*
886692ad7caSAdrian Chadd  * Allocates a contiguous block of dma memory of the requested size and
887692ad7caSAdrian Chadd  * alignment.
888692ad7caSAdrian Chadd  */
889692ad7caSAdrian Chadd static int
890692ad7caSAdrian Chadd wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
891692ad7caSAdrian Chadd     void **kvap, bus_size_t size, bus_size_t alignment)
892692ad7caSAdrian Chadd {
893692ad7caSAdrian Chadd 	int error;
894692ad7caSAdrian Chadd 
895692ad7caSAdrian Chadd 	dma->tag = NULL;
896692ad7caSAdrian Chadd 	dma->size = size;
897692ad7caSAdrian Chadd 
898692ad7caSAdrian Chadd 	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment,
899692ad7caSAdrian Chadd 	    0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
900692ad7caSAdrian Chadd 	    1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag);
901692ad7caSAdrian Chadd 	if (error != 0)
902692ad7caSAdrian Chadd 		goto fail;
903692ad7caSAdrian Chadd 
904692ad7caSAdrian Chadd 	error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
905692ad7caSAdrian Chadd 	    BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
906692ad7caSAdrian Chadd 	if (error != 0)
907692ad7caSAdrian Chadd 		goto fail;
908692ad7caSAdrian Chadd 
909692ad7caSAdrian Chadd 	error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
910692ad7caSAdrian Chadd 	    wpi_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
911692ad7caSAdrian Chadd 	if (error != 0)
912692ad7caSAdrian Chadd 		goto fail;
913692ad7caSAdrian Chadd 
914692ad7caSAdrian Chadd 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
915692ad7caSAdrian Chadd 
916692ad7caSAdrian Chadd 	if (kvap != NULL)
917692ad7caSAdrian Chadd 		*kvap = dma->vaddr;
918692ad7caSAdrian Chadd 
919692ad7caSAdrian Chadd 	return 0;
920692ad7caSAdrian Chadd 
921692ad7caSAdrian Chadd fail:	wpi_dma_contig_free(dma);
922692ad7caSAdrian Chadd 	return error;
923692ad7caSAdrian Chadd }
924692ad7caSAdrian Chadd 
925692ad7caSAdrian Chadd static void
926692ad7caSAdrian Chadd wpi_dma_contig_free(struct wpi_dma_info *dma)
927692ad7caSAdrian Chadd {
928692ad7caSAdrian Chadd 	if (dma->vaddr != NULL) {
929692ad7caSAdrian Chadd 		bus_dmamap_sync(dma->tag, dma->map,
930692ad7caSAdrian Chadd 		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
931692ad7caSAdrian Chadd 		bus_dmamap_unload(dma->tag, dma->map);
932692ad7caSAdrian Chadd 		bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
933692ad7caSAdrian Chadd 		dma->vaddr = NULL;
934692ad7caSAdrian Chadd 	}
935692ad7caSAdrian Chadd 	if (dma->tag != NULL) {
936692ad7caSAdrian Chadd 		bus_dma_tag_destroy(dma->tag);
937692ad7caSAdrian Chadd 		dma->tag = NULL;
938692ad7caSAdrian Chadd 	}
939692ad7caSAdrian Chadd }
940692ad7caSAdrian Chadd 
941692ad7caSAdrian Chadd /*
942692ad7caSAdrian Chadd  * Allocate a shared page between host and NIC.
943692ad7caSAdrian Chadd  */
944692ad7caSAdrian Chadd static int
945692ad7caSAdrian Chadd wpi_alloc_shared(struct wpi_softc *sc)
946692ad7caSAdrian Chadd {
947692ad7caSAdrian Chadd 	/* Shared buffer must be aligned on a 4KB boundary. */
948692ad7caSAdrian Chadd 	return wpi_dma_contig_alloc(sc, &sc->shared_dma,
949692ad7caSAdrian Chadd 	    (void **)&sc->shared, sizeof (struct wpi_shared), 4096);
950692ad7caSAdrian Chadd }
951692ad7caSAdrian Chadd 
952692ad7caSAdrian Chadd static void
953692ad7caSAdrian Chadd wpi_free_shared(struct wpi_softc *sc)
954692ad7caSAdrian Chadd {
955692ad7caSAdrian Chadd 	wpi_dma_contig_free(&sc->shared_dma);
956692ad7caSAdrian Chadd }
957692ad7caSAdrian Chadd 
958692ad7caSAdrian Chadd /*
959692ad7caSAdrian Chadd  * Allocate DMA-safe memory for firmware transfer.
960692ad7caSAdrian Chadd  */
961692ad7caSAdrian Chadd static int
962692ad7caSAdrian Chadd wpi_alloc_fwmem(struct wpi_softc *sc)
963692ad7caSAdrian Chadd {
964692ad7caSAdrian Chadd 	/* Must be aligned on a 16-byte boundary. */
965692ad7caSAdrian Chadd 	return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
966692ad7caSAdrian Chadd 	    WPI_FW_TEXT_MAXSZ + WPI_FW_DATA_MAXSZ, 16);
967692ad7caSAdrian Chadd }
968692ad7caSAdrian Chadd 
969692ad7caSAdrian Chadd static void
970692ad7caSAdrian Chadd wpi_free_fwmem(struct wpi_softc *sc)
971692ad7caSAdrian Chadd {
972692ad7caSAdrian Chadd 	wpi_dma_contig_free(&sc->fw_dma);
973692ad7caSAdrian Chadd }
974692ad7caSAdrian Chadd 
975692ad7caSAdrian Chadd static int
976692ad7caSAdrian Chadd wpi_alloc_rx_ring(struct wpi_softc *sc)
977692ad7caSAdrian Chadd {
978692ad7caSAdrian Chadd 	struct wpi_rx_ring *ring = &sc->rxq;
979692ad7caSAdrian Chadd 	bus_size_t size;
980692ad7caSAdrian Chadd 	int i, error;
981692ad7caSAdrian Chadd 
982692ad7caSAdrian Chadd 	ring->cur = 0;
983692ad7caSAdrian Chadd 	ring->update = 0;
984692ad7caSAdrian Chadd 
985692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
986692ad7caSAdrian Chadd 
987692ad7caSAdrian Chadd 	/* Allocate RX descriptors (16KB aligned.) */
988692ad7caSAdrian Chadd 	size = WPI_RX_RING_COUNT * sizeof (uint32_t);
989692ad7caSAdrian Chadd 	error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
990692ad7caSAdrian Chadd 	    (void **)&ring->desc, size, WPI_RING_DMA_ALIGN);
991692ad7caSAdrian Chadd 	if (error != 0) {
992692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
993692ad7caSAdrian Chadd 		    "%s: could not allocate RX ring DMA memory, error %d\n",
994692ad7caSAdrian Chadd 		    __func__, error);
995692ad7caSAdrian Chadd 		goto fail;
996692ad7caSAdrian Chadd 	}
997692ad7caSAdrian Chadd 
998692ad7caSAdrian Chadd 	/* Create RX buffer DMA tag. */
999692ad7caSAdrian Chadd 	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1000692ad7caSAdrian Chadd 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1001692ad7caSAdrian Chadd 	    MJUMPAGESIZE, 1, MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL,
1002692ad7caSAdrian Chadd 	    &ring->data_dmat);
1003692ad7caSAdrian Chadd 	if (error != 0) {
1004692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
1005692ad7caSAdrian Chadd 		    "%s: could not create RX buf DMA tag, error %d\n",
1006692ad7caSAdrian Chadd 		    __func__, error);
1007692ad7caSAdrian Chadd 		goto fail;
1008692ad7caSAdrian Chadd 	}
1009692ad7caSAdrian Chadd 
1010692ad7caSAdrian Chadd 	/*
1011692ad7caSAdrian Chadd 	 * Allocate and map RX buffers.
1012692ad7caSAdrian Chadd 	 */
1013692ad7caSAdrian Chadd 	for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1014692ad7caSAdrian Chadd 		struct wpi_rx_data *data = &ring->data[i];
1015692ad7caSAdrian Chadd 		bus_addr_t paddr;
1016692ad7caSAdrian Chadd 
1017692ad7caSAdrian Chadd 		error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1018692ad7caSAdrian Chadd 		if (error != 0) {
1019692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1020692ad7caSAdrian Chadd 			    "%s: could not create RX buf DMA map, error %d\n",
1021692ad7caSAdrian Chadd 			    __func__, error);
1022692ad7caSAdrian Chadd 			goto fail;
1023692ad7caSAdrian Chadd 		}
1024692ad7caSAdrian Chadd 
1025692ad7caSAdrian Chadd 		data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1026692ad7caSAdrian Chadd 		if (data->m == NULL) {
1027692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1028692ad7caSAdrian Chadd 			    "%s: could not allocate RX mbuf\n", __func__);
1029692ad7caSAdrian Chadd 			error = ENOBUFS;
1030692ad7caSAdrian Chadd 			goto fail;
1031692ad7caSAdrian Chadd 		}
1032692ad7caSAdrian Chadd 
1033692ad7caSAdrian Chadd 		error = bus_dmamap_load(ring->data_dmat, data->map,
1034692ad7caSAdrian Chadd 		    mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1035692ad7caSAdrian Chadd 		    &paddr, BUS_DMA_NOWAIT);
1036692ad7caSAdrian Chadd 		if (error != 0 && error != EFBIG) {
1037692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1038692ad7caSAdrian Chadd 			    "%s: can't map mbuf (error %d)\n", __func__,
1039692ad7caSAdrian Chadd 			    error);
1040692ad7caSAdrian Chadd 			goto fail;
1041692ad7caSAdrian Chadd 		}
1042692ad7caSAdrian Chadd 
1043692ad7caSAdrian Chadd 		/* Set physical address of RX buffer. */
1044692ad7caSAdrian Chadd 		ring->desc[i] = htole32(paddr);
1045692ad7caSAdrian Chadd 	}
1046692ad7caSAdrian Chadd 
1047692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1048692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
1049692ad7caSAdrian Chadd 
1050692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1051692ad7caSAdrian Chadd 
1052692ad7caSAdrian Chadd 	return 0;
1053692ad7caSAdrian Chadd 
1054692ad7caSAdrian Chadd fail:	wpi_free_rx_ring(sc);
1055692ad7caSAdrian Chadd 
1056692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1057692ad7caSAdrian Chadd 
1058692ad7caSAdrian Chadd 	return error;
1059692ad7caSAdrian Chadd }
1060692ad7caSAdrian Chadd 
1061692ad7caSAdrian Chadd static void
1062692ad7caSAdrian Chadd wpi_update_rx_ring(struct wpi_softc *sc)
1063692ad7caSAdrian Chadd {
1064692ad7caSAdrian Chadd 	struct wpi_rx_ring *ring = &sc->rxq;
1065692ad7caSAdrian Chadd 
106601729242SAdrian Chadd 	if (ring->update != 0) {
106701729242SAdrian Chadd 		/* Wait for INT_WAKEUP event. */
106801729242SAdrian Chadd 		return;
106901729242SAdrian Chadd 	}
107001729242SAdrian Chadd 
1071692ad7caSAdrian Chadd 	if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP) {
1072692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s: wakeup request\n",
1073692ad7caSAdrian Chadd 		    __func__);
1074692ad7caSAdrian Chadd 
1075692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1076692ad7caSAdrian Chadd 		ring->update = 1;
1077692ad7caSAdrian Chadd 	} else
1078692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_FH_RX_WPTR, ring->cur & ~7);
1079692ad7caSAdrian Chadd }
1080692ad7caSAdrian Chadd 
1081692ad7caSAdrian Chadd static void
1082692ad7caSAdrian Chadd wpi_reset_rx_ring(struct wpi_softc *sc)
1083692ad7caSAdrian Chadd {
1084692ad7caSAdrian Chadd 	struct wpi_rx_ring *ring = &sc->rxq;
1085692ad7caSAdrian Chadd 	int ntries;
1086692ad7caSAdrian Chadd 
1087692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1088692ad7caSAdrian Chadd 
1089692ad7caSAdrian Chadd 	if (wpi_nic_lock(sc) == 0) {
1090692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_FH_RX_CONFIG, 0);
1091692ad7caSAdrian Chadd 		for (ntries = 0; ntries < 1000; ntries++) {
1092692ad7caSAdrian Chadd 			if (WPI_READ(sc, WPI_FH_RX_STATUS) &
1093692ad7caSAdrian Chadd 			    WPI_FH_RX_STATUS_IDLE)
1094692ad7caSAdrian Chadd 				break;
1095692ad7caSAdrian Chadd 			DELAY(10);
1096692ad7caSAdrian Chadd 		}
1097692ad7caSAdrian Chadd #ifdef WPI_DEBUG
1098692ad7caSAdrian Chadd 		if (ntries == 1000) {
1099692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1100692ad7caSAdrian Chadd 			    "timeout resetting Rx ring\n");
1101692ad7caSAdrian Chadd 		}
1102692ad7caSAdrian Chadd #endif
1103692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
1104692ad7caSAdrian Chadd 	}
1105692ad7caSAdrian Chadd 
1106692ad7caSAdrian Chadd 	ring->cur = 0;
1107692ad7caSAdrian Chadd 	ring->update = 0;
1108692ad7caSAdrian Chadd }
1109692ad7caSAdrian Chadd 
1110692ad7caSAdrian Chadd static void
1111692ad7caSAdrian Chadd wpi_free_rx_ring(struct wpi_softc *sc)
1112692ad7caSAdrian Chadd {
1113692ad7caSAdrian Chadd 	struct wpi_rx_ring *ring = &sc->rxq;
1114692ad7caSAdrian Chadd 	int i;
1115692ad7caSAdrian Chadd 
1116692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1117692ad7caSAdrian Chadd 
1118692ad7caSAdrian Chadd 	wpi_dma_contig_free(&ring->desc_dma);
1119692ad7caSAdrian Chadd 
1120692ad7caSAdrian Chadd 	for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1121692ad7caSAdrian Chadd 		struct wpi_rx_data *data = &ring->data[i];
1122692ad7caSAdrian Chadd 
1123692ad7caSAdrian Chadd 		if (data->m != NULL) {
1124692ad7caSAdrian Chadd 			bus_dmamap_sync(ring->data_dmat, data->map,
1125692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
1126692ad7caSAdrian Chadd 			bus_dmamap_unload(ring->data_dmat, data->map);
1127692ad7caSAdrian Chadd 			m_freem(data->m);
1128692ad7caSAdrian Chadd 			data->m = NULL;
1129692ad7caSAdrian Chadd 		}
1130692ad7caSAdrian Chadd 		if (data->map != NULL)
1131692ad7caSAdrian Chadd 			bus_dmamap_destroy(ring->data_dmat, data->map);
1132692ad7caSAdrian Chadd 	}
1133692ad7caSAdrian Chadd 	if (ring->data_dmat != NULL) {
1134692ad7caSAdrian Chadd 		bus_dma_tag_destroy(ring->data_dmat);
1135692ad7caSAdrian Chadd 		ring->data_dmat = NULL;
1136692ad7caSAdrian Chadd 	}
1137692ad7caSAdrian Chadd }
1138692ad7caSAdrian Chadd 
1139692ad7caSAdrian Chadd static int
1140692ad7caSAdrian Chadd wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int qid)
1141692ad7caSAdrian Chadd {
1142692ad7caSAdrian Chadd 	bus_addr_t paddr;
1143692ad7caSAdrian Chadd 	bus_size_t size;
1144692ad7caSAdrian Chadd 	int i, error;
1145692ad7caSAdrian Chadd 
1146692ad7caSAdrian Chadd 	ring->qid = qid;
1147692ad7caSAdrian Chadd 	ring->queued = 0;
1148692ad7caSAdrian Chadd 	ring->cur = 0;
1149692ad7caSAdrian Chadd 	ring->update = 0;
1150692ad7caSAdrian Chadd 
1151692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1152692ad7caSAdrian Chadd 
1153692ad7caSAdrian Chadd 	/* Allocate TX descriptors (16KB aligned.) */
1154692ad7caSAdrian Chadd 	size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_desc);
1155692ad7caSAdrian Chadd 	error = wpi_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc,
1156692ad7caSAdrian Chadd 	    size, WPI_RING_DMA_ALIGN);
1157692ad7caSAdrian Chadd 	if (error != 0) {
1158692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
1159692ad7caSAdrian Chadd 		    "%s: could not allocate TX ring DMA memory, error %d\n",
1160692ad7caSAdrian Chadd 		    __func__, error);
1161692ad7caSAdrian Chadd 		goto fail;
1162692ad7caSAdrian Chadd 	}
1163692ad7caSAdrian Chadd 
1164692ad7caSAdrian Chadd 	/* Update shared area with ring physical address. */
1165692ad7caSAdrian Chadd 	sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1166692ad7caSAdrian Chadd 	bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1167692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
1168692ad7caSAdrian Chadd 
1169692ad7caSAdrian Chadd 	/*
1170692ad7caSAdrian Chadd 	 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need
1171692ad7caSAdrian Chadd 	 * to allocate commands space for other rings.
1172692ad7caSAdrian Chadd 	 * XXX Do we really need to allocate descriptors for other rings?
1173692ad7caSAdrian Chadd 	 */
11748e4cf38aSAdrian Chadd 	if (qid > WPI_CMD_QUEUE_NUM)
1175692ad7caSAdrian Chadd 		return 0;
1176692ad7caSAdrian Chadd 
1177692ad7caSAdrian Chadd 	size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_cmd);
1178692ad7caSAdrian Chadd 	error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1179692ad7caSAdrian Chadd 	    size, 4);
1180692ad7caSAdrian Chadd 	if (error != 0) {
1181692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
1182692ad7caSAdrian Chadd 		    "%s: could not allocate TX cmd DMA memory, error %d\n",
1183692ad7caSAdrian Chadd 		    __func__, error);
1184692ad7caSAdrian Chadd 		goto fail;
1185692ad7caSAdrian Chadd 	}
1186692ad7caSAdrian Chadd 
1187692ad7caSAdrian Chadd 	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1188692ad7caSAdrian Chadd 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1189692ad7caSAdrian Chadd 	    WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1190692ad7caSAdrian Chadd 	    &ring->data_dmat);
1191692ad7caSAdrian Chadd 	if (error != 0) {
1192692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
1193692ad7caSAdrian Chadd 		    "%s: could not create TX buf DMA tag, error %d\n",
1194692ad7caSAdrian Chadd 		    __func__, error);
1195692ad7caSAdrian Chadd 		goto fail;
1196692ad7caSAdrian Chadd 	}
1197692ad7caSAdrian Chadd 
1198692ad7caSAdrian Chadd 	paddr = ring->cmd_dma.paddr;
1199692ad7caSAdrian Chadd 	for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1200692ad7caSAdrian Chadd 		struct wpi_tx_data *data = &ring->data[i];
1201692ad7caSAdrian Chadd 
1202692ad7caSAdrian Chadd 		data->cmd_paddr = paddr;
1203692ad7caSAdrian Chadd 		paddr += sizeof (struct wpi_tx_cmd);
1204692ad7caSAdrian Chadd 
1205692ad7caSAdrian Chadd 		error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1206692ad7caSAdrian Chadd 		if (error != 0) {
1207692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1208692ad7caSAdrian Chadd 			    "%s: could not create TX buf DMA map, error %d\n",
1209692ad7caSAdrian Chadd 			    __func__, error);
1210692ad7caSAdrian Chadd 			goto fail;
1211692ad7caSAdrian Chadd 		}
1212692ad7caSAdrian Chadd 	}
1213692ad7caSAdrian Chadd 
1214692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1215692ad7caSAdrian Chadd 
1216692ad7caSAdrian Chadd 	return 0;
1217692ad7caSAdrian Chadd 
1218692ad7caSAdrian Chadd fail:	wpi_free_tx_ring(sc, ring);
1219692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1220692ad7caSAdrian Chadd 	return error;
1221692ad7caSAdrian Chadd }
1222692ad7caSAdrian Chadd 
1223692ad7caSAdrian Chadd static void
1224692ad7caSAdrian Chadd wpi_update_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1225692ad7caSAdrian Chadd {
122601729242SAdrian Chadd 	if (ring->update != 0) {
122701729242SAdrian Chadd 		/* Wait for INT_WAKEUP event. */
122801729242SAdrian Chadd 		return;
122901729242SAdrian Chadd 	}
123001729242SAdrian Chadd 
1231692ad7caSAdrian Chadd 	if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP) {
1232692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s (%d): requesting wakeup\n",
1233692ad7caSAdrian Chadd 		    __func__, ring->qid);
1234692ad7caSAdrian Chadd 
1235692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
1236692ad7caSAdrian Chadd 		ring->update = 1;
1237692ad7caSAdrian Chadd 	} else
1238692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
1239692ad7caSAdrian Chadd }
1240692ad7caSAdrian Chadd 
1241692ad7caSAdrian Chadd static void
1242692ad7caSAdrian Chadd wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1243692ad7caSAdrian Chadd {
1244692ad7caSAdrian Chadd 	int i;
1245692ad7caSAdrian Chadd 
1246692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1247692ad7caSAdrian Chadd 
1248692ad7caSAdrian Chadd 	for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1249692ad7caSAdrian Chadd 		struct wpi_tx_data *data = &ring->data[i];
1250692ad7caSAdrian Chadd 
1251692ad7caSAdrian Chadd 		if (data->m != NULL) {
1252692ad7caSAdrian Chadd 			bus_dmamap_sync(ring->data_dmat, data->map,
1253692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTWRITE);
1254692ad7caSAdrian Chadd 			bus_dmamap_unload(ring->data_dmat, data->map);
1255692ad7caSAdrian Chadd 			m_freem(data->m);
1256692ad7caSAdrian Chadd 			data->m = NULL;
1257692ad7caSAdrian Chadd 		}
1258692ad7caSAdrian Chadd 	}
1259692ad7caSAdrian Chadd 	/* Clear TX descriptors. */
1260692ad7caSAdrian Chadd 	memset(ring->desc, 0, ring->desc_dma.size);
1261692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1262692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
1263692ad7caSAdrian Chadd 	sc->qfullmsk &= ~(1 << ring->qid);
1264692ad7caSAdrian Chadd 	ring->queued = 0;
1265692ad7caSAdrian Chadd 	ring->cur = 0;
1266692ad7caSAdrian Chadd 	ring->update = 0;
1267692ad7caSAdrian Chadd }
1268692ad7caSAdrian Chadd 
1269692ad7caSAdrian Chadd static void
1270692ad7caSAdrian Chadd wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1271692ad7caSAdrian Chadd {
1272692ad7caSAdrian Chadd 	int i;
1273692ad7caSAdrian Chadd 
1274692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
1275692ad7caSAdrian Chadd 
1276692ad7caSAdrian Chadd 	wpi_dma_contig_free(&ring->desc_dma);
1277692ad7caSAdrian Chadd 	wpi_dma_contig_free(&ring->cmd_dma);
1278692ad7caSAdrian Chadd 
1279692ad7caSAdrian Chadd 	for (i = 0; i < WPI_TX_RING_COUNT; i++) {
1280692ad7caSAdrian Chadd 		struct wpi_tx_data *data = &ring->data[i];
1281692ad7caSAdrian Chadd 
1282692ad7caSAdrian Chadd 		if (data->m != NULL) {
1283692ad7caSAdrian Chadd 			bus_dmamap_sync(ring->data_dmat, data->map,
1284692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTWRITE);
1285692ad7caSAdrian Chadd 			bus_dmamap_unload(ring->data_dmat, data->map);
1286692ad7caSAdrian Chadd 			m_freem(data->m);
1287692ad7caSAdrian Chadd 		}
1288692ad7caSAdrian Chadd 		if (data->map != NULL)
1289692ad7caSAdrian Chadd 			bus_dmamap_destroy(ring->data_dmat, data->map);
1290692ad7caSAdrian Chadd 	}
1291692ad7caSAdrian Chadd 	if (ring->data_dmat != NULL) {
1292692ad7caSAdrian Chadd 		bus_dma_tag_destroy(ring->data_dmat);
1293692ad7caSAdrian Chadd 		ring->data_dmat = NULL;
1294692ad7caSAdrian Chadd 	}
1295692ad7caSAdrian Chadd }
1296692ad7caSAdrian Chadd 
1297692ad7caSAdrian Chadd /*
1298692ad7caSAdrian Chadd  * Extract various information from EEPROM.
1299692ad7caSAdrian Chadd  */
1300692ad7caSAdrian Chadd static int
1301692ad7caSAdrian Chadd wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
1302692ad7caSAdrian Chadd {
1303692ad7caSAdrian Chadd #define WPI_CHK(res) do {		\
1304692ad7caSAdrian Chadd 	if ((error = res) != 0)		\
1305692ad7caSAdrian Chadd 		goto fail;		\
1306692ad7caSAdrian Chadd } while (0)
1307692ad7caSAdrian Chadd 	int error, i;
1308692ad7caSAdrian Chadd 
1309692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1310692ad7caSAdrian Chadd 
1311692ad7caSAdrian Chadd 	/* Adapter has to be powered on for EEPROM access to work. */
1312692ad7caSAdrian Chadd 	if ((error = wpi_apm_init(sc)) != 0) {
1313692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
1314692ad7caSAdrian Chadd 		    "%s: could not power ON adapter, error %d\n", __func__,
1315692ad7caSAdrian Chadd 		    error);
1316692ad7caSAdrian Chadd 		return error;
1317692ad7caSAdrian Chadd 	}
1318692ad7caSAdrian Chadd 
1319692ad7caSAdrian Chadd 	if ((WPI_READ(sc, WPI_EEPROM_GP) & 0x6) == 0) {
1320692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "bad EEPROM signature\n");
1321692ad7caSAdrian Chadd 		error = EIO;
1322692ad7caSAdrian Chadd 		goto fail;
1323692ad7caSAdrian Chadd 	}
1324692ad7caSAdrian Chadd 	/* Clear HW ownership of EEPROM. */
1325692ad7caSAdrian Chadd 	WPI_CLRBITS(sc, WPI_EEPROM_GP, WPI_EEPROM_GP_IF_OWNER);
1326692ad7caSAdrian Chadd 
1327692ad7caSAdrian Chadd 	/* Read the hardware capabilities, revision and SKU type. */
1328692ad7caSAdrian Chadd 	WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_SKU_CAP, &sc->cap,
1329692ad7caSAdrian Chadd 	    sizeof(sc->cap)));
1330692ad7caSAdrian Chadd 	WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,
1331692ad7caSAdrian Chadd 	    sizeof(sc->rev)));
1332692ad7caSAdrian Chadd 	WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type,
1333692ad7caSAdrian Chadd 	    sizeof(sc->type)));
1334692ad7caSAdrian Chadd 
1335f736d898SAdrian Chadd 	sc->rev = le16toh(sc->rev);
13367167f5fcSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_EEPROM, "cap=%x rev=%x type=%x\n", sc->cap,
1337f736d898SAdrian Chadd 	    sc->rev, sc->type);
1338692ad7caSAdrian Chadd 
1339692ad7caSAdrian Chadd 	/* Read the regulatory domain (4 ASCII characters.) */
1340692ad7caSAdrian Chadd 	WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain,
1341692ad7caSAdrian Chadd 	    sizeof(sc->domain)));
1342692ad7caSAdrian Chadd 
1343692ad7caSAdrian Chadd 	/* Read MAC address. */
1344692ad7caSAdrian Chadd 	WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr,
1345692ad7caSAdrian Chadd 	    IEEE80211_ADDR_LEN));
1346692ad7caSAdrian Chadd 
1347692ad7caSAdrian Chadd 	/* Read the list of authorized channels. */
1348692ad7caSAdrian Chadd 	for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
1349692ad7caSAdrian Chadd 		WPI_CHK(wpi_read_eeprom_channels(sc, i));
1350692ad7caSAdrian Chadd 
1351692ad7caSAdrian Chadd 	/* Read the list of TX power groups. */
1352692ad7caSAdrian Chadd 	for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
1353692ad7caSAdrian Chadd 		WPI_CHK(wpi_read_eeprom_group(sc, i));
1354692ad7caSAdrian Chadd 
1355692ad7caSAdrian Chadd fail:	wpi_apm_stop(sc);	/* Power OFF adapter. */
1356692ad7caSAdrian Chadd 
1357692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END,
1358692ad7caSAdrian Chadd 	    __func__);
1359692ad7caSAdrian Chadd 
1360692ad7caSAdrian Chadd 	return error;
1361692ad7caSAdrian Chadd #undef WPI_CHK
1362692ad7caSAdrian Chadd }
1363692ad7caSAdrian Chadd 
1364692ad7caSAdrian Chadd /*
1365692ad7caSAdrian Chadd  * Translate EEPROM flags to net80211.
1366692ad7caSAdrian Chadd  */
1367692ad7caSAdrian Chadd static uint32_t
1368692ad7caSAdrian Chadd wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel)
1369692ad7caSAdrian Chadd {
1370692ad7caSAdrian Chadd 	uint32_t nflags;
1371692ad7caSAdrian Chadd 
1372692ad7caSAdrian Chadd 	nflags = 0;
1373692ad7caSAdrian Chadd 	if ((channel->flags & WPI_EEPROM_CHAN_ACTIVE) == 0)
1374692ad7caSAdrian Chadd 		nflags |= IEEE80211_CHAN_PASSIVE;
1375692ad7caSAdrian Chadd 	if ((channel->flags & WPI_EEPROM_CHAN_IBSS) == 0)
1376692ad7caSAdrian Chadd 		nflags |= IEEE80211_CHAN_NOADHOC;
1377692ad7caSAdrian Chadd 	if (channel->flags & WPI_EEPROM_CHAN_RADAR) {
1378692ad7caSAdrian Chadd 		nflags |= IEEE80211_CHAN_DFS;
1379692ad7caSAdrian Chadd 		/* XXX apparently IBSS may still be marked */
1380692ad7caSAdrian Chadd 		nflags |= IEEE80211_CHAN_NOADHOC;
1381692ad7caSAdrian Chadd 	}
1382692ad7caSAdrian Chadd 
1383692ad7caSAdrian Chadd 	return nflags;
1384692ad7caSAdrian Chadd }
1385692ad7caSAdrian Chadd 
1386692ad7caSAdrian Chadd static void
1387692ad7caSAdrian Chadd wpi_read_eeprom_band(struct wpi_softc *sc, int n)
1388692ad7caSAdrian Chadd {
1389692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
1390692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
1391692ad7caSAdrian Chadd 	struct wpi_eeprom_chan *channels = sc->eeprom_channels[n];
1392692ad7caSAdrian Chadd 	const struct wpi_chan_band *band = &wpi_bands[n];
1393692ad7caSAdrian Chadd 	struct ieee80211_channel *c;
1394692ad7caSAdrian Chadd 	uint8_t chan;
1395692ad7caSAdrian Chadd 	int i, nflags;
1396692ad7caSAdrian Chadd 
1397692ad7caSAdrian Chadd 	for (i = 0; i < band->nchan; i++) {
1398692ad7caSAdrian Chadd 		if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
13997e0d5232SAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_EEPROM,
1400692ad7caSAdrian Chadd 			    "Channel Not Valid: %d, band %d\n",
1401692ad7caSAdrian Chadd 			     band->chan[i],n);
1402692ad7caSAdrian Chadd 			continue;
1403692ad7caSAdrian Chadd 		}
1404692ad7caSAdrian Chadd 
1405692ad7caSAdrian Chadd 		chan = band->chan[i];
1406692ad7caSAdrian Chadd 		nflags = wpi_eeprom_channel_flags(&channels[i]);
1407692ad7caSAdrian Chadd 
1408692ad7caSAdrian Chadd 		c = &ic->ic_channels[ic->ic_nchans++];
1409692ad7caSAdrian Chadd 		c->ic_ieee = chan;
1410692ad7caSAdrian Chadd 		c->ic_maxregpower = channels[i].maxpwr;
1411692ad7caSAdrian Chadd 		c->ic_maxpower = 2*c->ic_maxregpower;
1412692ad7caSAdrian Chadd 
1413692ad7caSAdrian Chadd 		if (n == 0) {	/* 2GHz band */
14147167f5fcSAdrian Chadd 			c->ic_freq = ieee80211_ieee2mhz(chan,
14157167f5fcSAdrian Chadd 			    IEEE80211_CHAN_G);
14167167f5fcSAdrian Chadd 
1417692ad7caSAdrian Chadd 			/* G =>'s B is supported */
1418692ad7caSAdrian Chadd 			c->ic_flags = IEEE80211_CHAN_B | nflags;
1419692ad7caSAdrian Chadd 			c = &ic->ic_channels[ic->ic_nchans++];
1420692ad7caSAdrian Chadd 			c[0] = c[-1];
1421692ad7caSAdrian Chadd 			c->ic_flags = IEEE80211_CHAN_G | nflags;
1422692ad7caSAdrian Chadd 		} else {	/* 5GHz band */
14237167f5fcSAdrian Chadd 			c->ic_freq = ieee80211_ieee2mhz(chan,
14247167f5fcSAdrian Chadd 			    IEEE80211_CHAN_A);
14257167f5fcSAdrian Chadd 
1426692ad7caSAdrian Chadd 			c->ic_flags = IEEE80211_CHAN_A | nflags;
1427692ad7caSAdrian Chadd 		}
1428692ad7caSAdrian Chadd 
1429692ad7caSAdrian Chadd 		/* Save maximum allowed TX power for this channel. */
1430692ad7caSAdrian Chadd 		sc->maxpwr[chan] = channels[i].maxpwr;
1431692ad7caSAdrian Chadd 
1432692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_EEPROM,
1433692ad7caSAdrian Chadd 		    "adding chan %d (%dMHz) flags=0x%x maxpwr=%d passive=%d,"
1434692ad7caSAdrian Chadd 		    " offset %d\n", chan, c->ic_freq,
1435692ad7caSAdrian Chadd 		    channels[i].flags, sc->maxpwr[chan],
1436fae61c69SAdrian Chadd 		    IEEE80211_IS_CHAN_PASSIVE(c), ic->ic_nchans);
1437692ad7caSAdrian Chadd 	}
1438692ad7caSAdrian Chadd }
1439692ad7caSAdrian Chadd 
1440692ad7caSAdrian Chadd /**
1441692ad7caSAdrian Chadd  * Read the eeprom to find out what channels are valid for the given
1442692ad7caSAdrian Chadd  * band and update net80211 with what we find.
1443692ad7caSAdrian Chadd  */
1444692ad7caSAdrian Chadd static int
1445692ad7caSAdrian Chadd wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
1446692ad7caSAdrian Chadd {
1447692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
1448692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
1449692ad7caSAdrian Chadd 	const struct wpi_chan_band *band = &wpi_bands[n];
1450692ad7caSAdrian Chadd 	int error;
1451692ad7caSAdrian Chadd 
1452692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1453692ad7caSAdrian Chadd 
1454692ad7caSAdrian Chadd 	error = wpi_read_prom_data(sc, band->addr, &sc->eeprom_channels[n],
1455692ad7caSAdrian Chadd 	    band->nchan * sizeof (struct wpi_eeprom_chan));
1456692ad7caSAdrian Chadd 	if (error != 0) {
1457692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1458692ad7caSAdrian Chadd 		return error;
1459692ad7caSAdrian Chadd 	}
1460692ad7caSAdrian Chadd 
1461692ad7caSAdrian Chadd 	wpi_read_eeprom_band(sc, n);
1462692ad7caSAdrian Chadd 
1463692ad7caSAdrian Chadd 	ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1464692ad7caSAdrian Chadd 
1465692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1466692ad7caSAdrian Chadd 
1467692ad7caSAdrian Chadd 	return 0;
1468692ad7caSAdrian Chadd }
1469692ad7caSAdrian Chadd 
1470692ad7caSAdrian Chadd static struct wpi_eeprom_chan *
1471692ad7caSAdrian Chadd wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c)
1472692ad7caSAdrian Chadd {
1473692ad7caSAdrian Chadd 	int i, j;
1474692ad7caSAdrian Chadd 
1475692ad7caSAdrian Chadd 	for (j = 0; j < WPI_CHAN_BANDS_COUNT; j++)
1476692ad7caSAdrian Chadd 		for (i = 0; i < wpi_bands[j].nchan; i++)
1477692ad7caSAdrian Chadd 			if (wpi_bands[j].chan[i] == c->ic_ieee)
1478692ad7caSAdrian Chadd 				return &sc->eeprom_channels[j][i];
1479692ad7caSAdrian Chadd 
1480692ad7caSAdrian Chadd 	return NULL;
1481692ad7caSAdrian Chadd }
1482692ad7caSAdrian Chadd 
1483692ad7caSAdrian Chadd /*
1484692ad7caSAdrian Chadd  * Enforce flags read from EEPROM.
1485692ad7caSAdrian Chadd  */
1486692ad7caSAdrian Chadd static int
1487692ad7caSAdrian Chadd wpi_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd,
1488692ad7caSAdrian Chadd     int nchan, struct ieee80211_channel chans[])
1489692ad7caSAdrian Chadd {
1490692ad7caSAdrian Chadd 	struct ifnet *ifp = ic->ic_ifp;
1491692ad7caSAdrian Chadd 	struct wpi_softc *sc = ifp->if_softc;
1492692ad7caSAdrian Chadd 	int i;
1493692ad7caSAdrian Chadd 
1494692ad7caSAdrian Chadd 	for (i = 0; i < nchan; i++) {
1495692ad7caSAdrian Chadd 		struct ieee80211_channel *c = &chans[i];
1496692ad7caSAdrian Chadd 		struct wpi_eeprom_chan *channel;
1497692ad7caSAdrian Chadd 
1498692ad7caSAdrian Chadd 		channel = wpi_find_eeprom_channel(sc, c);
1499692ad7caSAdrian Chadd 		if (channel == NULL) {
1500692ad7caSAdrian Chadd 			if_printf(ic->ic_ifp,
1501692ad7caSAdrian Chadd 			    "%s: invalid channel %u freq %u/0x%x\n",
1502692ad7caSAdrian Chadd 			    __func__, c->ic_ieee, c->ic_freq, c->ic_flags);
1503692ad7caSAdrian Chadd 			return EINVAL;
1504692ad7caSAdrian Chadd 		}
1505692ad7caSAdrian Chadd 		c->ic_flags |= wpi_eeprom_channel_flags(channel);
1506692ad7caSAdrian Chadd 	}
1507692ad7caSAdrian Chadd 
1508692ad7caSAdrian Chadd 	return 0;
1509692ad7caSAdrian Chadd }
1510692ad7caSAdrian Chadd 
1511692ad7caSAdrian Chadd static int
1512692ad7caSAdrian Chadd wpi_read_eeprom_group(struct wpi_softc *sc, int n)
1513692ad7caSAdrian Chadd {
1514692ad7caSAdrian Chadd 	struct wpi_power_group *group = &sc->groups[n];
1515692ad7caSAdrian Chadd 	struct wpi_eeprom_group rgroup;
1516692ad7caSAdrian Chadd 	int i, error;
1517692ad7caSAdrian Chadd 
1518692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1519692ad7caSAdrian Chadd 
1520692ad7caSAdrian Chadd 	if ((error = wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32,
1521692ad7caSAdrian Chadd 	    &rgroup, sizeof rgroup)) != 0) {
1522692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1523692ad7caSAdrian Chadd 		return error;
1524692ad7caSAdrian Chadd 	}
1525692ad7caSAdrian Chadd 
1526692ad7caSAdrian Chadd 	/* Save TX power group information. */
1527692ad7caSAdrian Chadd 	group->chan   = rgroup.chan;
1528692ad7caSAdrian Chadd 	group->maxpwr = rgroup.maxpwr;
1529692ad7caSAdrian Chadd 	/* Retrieve temperature at which the samples were taken. */
1530692ad7caSAdrian Chadd 	group->temp   = (int16_t)le16toh(rgroup.temp);
1531692ad7caSAdrian Chadd 
1532692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_EEPROM,
1533692ad7caSAdrian Chadd 	    "power group %d: chan=%d maxpwr=%d temp=%d\n", n, group->chan,
1534692ad7caSAdrian Chadd 	    group->maxpwr, group->temp);
1535692ad7caSAdrian Chadd 
1536692ad7caSAdrian Chadd 	for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
1537692ad7caSAdrian Chadd 		group->samples[i].index = rgroup.samples[i].index;
1538692ad7caSAdrian Chadd 		group->samples[i].power = rgroup.samples[i].power;
1539692ad7caSAdrian Chadd 
1540692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_EEPROM,
1541692ad7caSAdrian Chadd 		    "\tsample %d: index=%d power=%d\n", i,
1542692ad7caSAdrian Chadd 		    group->samples[i].index, group->samples[i].power);
1543692ad7caSAdrian Chadd 	}
1544692ad7caSAdrian Chadd 
1545692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1546692ad7caSAdrian Chadd 
1547692ad7caSAdrian Chadd 	return 0;
1548692ad7caSAdrian Chadd }
1549692ad7caSAdrian Chadd 
1550eca2eb39SAdrian Chadd static int
1551eca2eb39SAdrian Chadd wpi_add_node_entry_adhoc(struct wpi_softc *sc)
1552eca2eb39SAdrian Chadd {
1553eca2eb39SAdrian Chadd 	int newid = WPI_ID_IBSS_MIN;
1554eca2eb39SAdrian Chadd 
1555eca2eb39SAdrian Chadd 	for (; newid <= WPI_ID_IBSS_MAX; newid++) {
1556eca2eb39SAdrian Chadd 		if ((sc->nodesmsk & (1 << newid)) == 0) {
1557eca2eb39SAdrian Chadd 			sc->nodesmsk |= 1 << newid;
1558eca2eb39SAdrian Chadd 			return newid;
1559eca2eb39SAdrian Chadd 		}
1560eca2eb39SAdrian Chadd 	}
1561eca2eb39SAdrian Chadd 
1562eca2eb39SAdrian Chadd 	return WPI_ID_UNDEFINED;
1563eca2eb39SAdrian Chadd }
1564eca2eb39SAdrian Chadd 
1565eca2eb39SAdrian Chadd static __inline int
15660ebca245SAdrian Chadd wpi_add_node_entry_sta(struct wpi_softc *sc)
15670ebca245SAdrian Chadd {
15680ebca245SAdrian Chadd 	sc->nodesmsk |= 1 << WPI_ID_BSS;
15690ebca245SAdrian Chadd 
15700ebca245SAdrian Chadd 	return WPI_ID_BSS;
15710ebca245SAdrian Chadd }
15720ebca245SAdrian Chadd 
15730ebca245SAdrian Chadd static __inline int
1574eca2eb39SAdrian Chadd wpi_check_node_entry(struct wpi_softc *sc, uint8_t id)
1575eca2eb39SAdrian Chadd {
1576eca2eb39SAdrian Chadd 	if (id == WPI_ID_UNDEFINED)
1577eca2eb39SAdrian Chadd 		return 0;
1578eca2eb39SAdrian Chadd 
1579eca2eb39SAdrian Chadd 	return (sc->nodesmsk >> id) & 1;
1580eca2eb39SAdrian Chadd }
1581eca2eb39SAdrian Chadd 
1582eca2eb39SAdrian Chadd static __inline void
1583eca2eb39SAdrian Chadd wpi_clear_node_table(struct wpi_softc *sc)
1584eca2eb39SAdrian Chadd {
1585eca2eb39SAdrian Chadd 	sc->nodesmsk = 0;
1586eca2eb39SAdrian Chadd }
1587eca2eb39SAdrian Chadd 
1588eca2eb39SAdrian Chadd static __inline void
1589eca2eb39SAdrian Chadd wpi_del_node_entry(struct wpi_softc *sc, uint8_t id)
1590eca2eb39SAdrian Chadd {
1591eca2eb39SAdrian Chadd 	sc->nodesmsk &= ~(1 << id);
1592eca2eb39SAdrian Chadd }
1593eca2eb39SAdrian Chadd 
1594692ad7caSAdrian Chadd static struct ieee80211_node *
1595692ad7caSAdrian Chadd wpi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
1596692ad7caSAdrian Chadd {
1597692ad7caSAdrian Chadd 	struct wpi_node *wn;
1598692ad7caSAdrian Chadd 
1599692ad7caSAdrian Chadd 	wn = malloc(sizeof (struct wpi_node), M_80211_NODE,
1600692ad7caSAdrian Chadd 	    M_NOWAIT | M_ZERO);
1601692ad7caSAdrian Chadd 
1602692ad7caSAdrian Chadd 	if (wn == NULL)
1603692ad7caSAdrian Chadd 		return NULL;
1604692ad7caSAdrian Chadd 
1605692ad7caSAdrian Chadd 	wn->id = WPI_ID_UNDEFINED;
1606692ad7caSAdrian Chadd 
1607692ad7caSAdrian Chadd 	return &wn->ni;
1608692ad7caSAdrian Chadd }
1609692ad7caSAdrian Chadd 
1610692ad7caSAdrian Chadd static void
1611692ad7caSAdrian Chadd wpi_node_free(struct ieee80211_node *ni)
1612692ad7caSAdrian Chadd {
1613692ad7caSAdrian Chadd 	struct ieee80211com *ic = ni->ni_ic;
1614692ad7caSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
1615a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
1616692ad7caSAdrian Chadd 
16170ebca245SAdrian Chadd 	if (wn->id != WPI_ID_UNDEFINED) {
16187964dd56SAdrian Chadd 		WPI_NT_LOCK(sc);
1619eca2eb39SAdrian Chadd 		if (wpi_check_node_entry(sc, wn->id)) {
1620eca2eb39SAdrian Chadd 			wpi_del_node_entry(sc, wn->id);
1621692ad7caSAdrian Chadd 			wpi_del_node(sc, ni);
1622eca2eb39SAdrian Chadd 		}
16237964dd56SAdrian Chadd 		WPI_NT_UNLOCK(sc);
1624692ad7caSAdrian Chadd 	}
1625692ad7caSAdrian Chadd 
1626692ad7caSAdrian Chadd 	sc->sc_node_free(ni);
1627692ad7caSAdrian Chadd }
1628692ad7caSAdrian Chadd 
16296607310bSBenjamin Close /**
16306607310bSBenjamin Close  * Called by net80211 when ever there is a change to 80211 state machine
16316607310bSBenjamin Close  */
16326607310bSBenjamin Close static int
1633b032f27cSSam Leffler wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
16346607310bSBenjamin Close {
1635b032f27cSSam Leffler 	struct wpi_vap *wvp = WPI_VAP(vap);
1636b032f27cSSam Leffler 	struct ieee80211com *ic = vap->iv_ic;
16376607310bSBenjamin Close 	struct ifnet *ifp = ic->ic_ifp;
16386607310bSBenjamin Close 	struct wpi_softc *sc = ifp->if_softc;
1639692ad7caSAdrian Chadd 	int error = 0;
16406607310bSBenjamin Close 
1641692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1642692ad7caSAdrian Chadd 
1643692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_STATE, "%s: %s -> %s\n", __func__,
1644b032f27cSSam Leffler 		ieee80211_state_name[vap->iv_state],
1645692ad7caSAdrian Chadd 		ieee80211_state_name[nstate]);
16466607310bSBenjamin Close 
16475efea30fSAndrew Thompson 	IEEE80211_UNLOCK(ic);
16485efea30fSAndrew Thompson 	WPI_LOCK(sc);
1649692ad7caSAdrian Chadd 	switch (nstate) {
1650692ad7caSAdrian Chadd 	case IEEE80211_S_SCAN:
1651692ad7caSAdrian Chadd 		if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1652692ad7caSAdrian Chadd 		    vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1653692ad7caSAdrian Chadd 		    (sc->rxon.filter & htole32(WPI_FILTER_BSS))) {
1654692ad7caSAdrian Chadd 			sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
1655692ad7caSAdrian Chadd 			if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
16563934c8a5SBernhard Schmidt 				device_printf(sc->sc_dev,
1657692ad7caSAdrian Chadd 				    "%s: could not send RXON\n", __func__);
16583934c8a5SBernhard Schmidt 			}
16593934c8a5SBernhard Schmidt 		}
1660692ad7caSAdrian Chadd 		break;
1661692ad7caSAdrian Chadd 
1662692ad7caSAdrian Chadd 	case IEEE80211_S_ASSOC:
1663692ad7caSAdrian Chadd 		if (vap->iv_state != IEEE80211_S_RUN)
1664692ad7caSAdrian Chadd 			break;
1665692ad7caSAdrian Chadd 		/* FALLTHROUGH */
1666692ad7caSAdrian Chadd 	case IEEE80211_S_AUTH:
16673934c8a5SBernhard Schmidt 		/*
16683934c8a5SBernhard Schmidt 		 * The node must be registered in the firmware before auth.
16693934c8a5SBernhard Schmidt 		 * Also the associd must be cleared on RUN -> ASSOC
16703934c8a5SBernhard Schmidt 		 * transitions.
16713934c8a5SBernhard Schmidt 		 */
1672692ad7caSAdrian Chadd 		if ((error = wpi_auth(sc, vap)) != 0) {
16735efea30fSAndrew Thompson 			device_printf(sc->sc_dev,
1674692ad7caSAdrian Chadd 			    "%s: could not move to AUTH state, error %d\n",
16755efea30fSAndrew Thompson 			    __func__, error);
16765efea30fSAndrew Thompson 		}
1677692ad7caSAdrian Chadd 		break;
1678692ad7caSAdrian Chadd 
1679692ad7caSAdrian Chadd 	case IEEE80211_S_RUN:
1680692ad7caSAdrian Chadd 		/*
1681692ad7caSAdrian Chadd 		 * RUN -> RUN transition; Just restart the timers.
1682692ad7caSAdrian Chadd 		 */
1683692ad7caSAdrian Chadd 		if (vap->iv_state == IEEE80211_S_RUN) {
1684b032f27cSSam Leffler 			wpi_calib_timeout(sc);
1685692ad7caSAdrian Chadd 			break;
1686692ad7caSAdrian Chadd 		}
1687692ad7caSAdrian Chadd 
1688692ad7caSAdrian Chadd 		/*
1689692ad7caSAdrian Chadd 		 * !RUN -> RUN requires setting the association id
1690692ad7caSAdrian Chadd 		 * which is done with a firmware cmd.  We also defer
1691692ad7caSAdrian Chadd 		 * starting the timers until that work is done.
1692692ad7caSAdrian Chadd 		 */
1693692ad7caSAdrian Chadd 		if ((error = wpi_run(sc, vap)) != 0) {
1694692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
1695692ad7caSAdrian Chadd 			    "%s: could not move to RUN state\n", __func__);
1696692ad7caSAdrian Chadd 		}
1697692ad7caSAdrian Chadd 		break;
1698692ad7caSAdrian Chadd 
1699692ad7caSAdrian Chadd 	default:
1700692ad7caSAdrian Chadd 		break;
1701b032f27cSSam Leffler 	}
17025efea30fSAndrew Thompson 	WPI_UNLOCK(sc);
17035efea30fSAndrew Thompson 	IEEE80211_LOCK(ic);
1704692ad7caSAdrian Chadd 	if (error != 0) {
1705692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
1706692ad7caSAdrian Chadd 		return error;
1707692ad7caSAdrian Chadd 	}
1708692ad7caSAdrian Chadd 
1709692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1710692ad7caSAdrian Chadd 
1711d036bb20SAdrian Chadd 	return wvp->wv_newstate(vap, nstate, arg);
17126607310bSBenjamin Close }
17136607310bSBenjamin Close 
17146607310bSBenjamin Close static void
1715692ad7caSAdrian Chadd wpi_calib_timeout(void *arg)
17166607310bSBenjamin Close {
1717692ad7caSAdrian Chadd 	struct wpi_softc *sc = arg;
1718692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
1719692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
1720692ad7caSAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
17216607310bSBenjamin Close 
1722692ad7caSAdrian Chadd 	if (vap->iv_state != IEEE80211_S_RUN)
1723692ad7caSAdrian Chadd 		return;
17246607310bSBenjamin Close 
1725692ad7caSAdrian Chadd 	wpi_power_calibration(sc);
1726692ad7caSAdrian Chadd 
1727692ad7caSAdrian Chadd 	callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
17286607310bSBenjamin Close }
17296607310bSBenjamin Close 
1730692ad7caSAdrian Chadd static __inline uint8_t
1731692ad7caSAdrian Chadd rate2plcp(const uint8_t rate)
17326607310bSBenjamin Close {
1733692ad7caSAdrian Chadd 	switch (rate) {
1734692ad7caSAdrian Chadd 	case 12:	return 0xd;
1735692ad7caSAdrian Chadd 	case 18:	return 0xf;
1736692ad7caSAdrian Chadd 	case 24:	return 0x5;
1737692ad7caSAdrian Chadd 	case 36:	return 0x7;
1738692ad7caSAdrian Chadd 	case 48:	return 0x9;
1739692ad7caSAdrian Chadd 	case 72:	return 0xb;
1740692ad7caSAdrian Chadd 	case 96:	return 0x1;
1741692ad7caSAdrian Chadd 	case 108:	return 0x3;
1742692ad7caSAdrian Chadd 	case 2:		return 10;
1743692ad7caSAdrian Chadd 	case 4:		return 20;
1744692ad7caSAdrian Chadd 	case 11:	return 55;
1745692ad7caSAdrian Chadd 	case 22:	return 110;
1746692ad7caSAdrian Chadd 	default:	return 0;
1747692ad7caSAdrian Chadd 	}
17486607310bSBenjamin Close }
17496607310bSBenjamin Close 
1750692ad7caSAdrian Chadd static __inline uint8_t
1751692ad7caSAdrian Chadd plcp2rate(const uint8_t plcp)
17526607310bSBenjamin Close {
1753692ad7caSAdrian Chadd 	switch (plcp) {
1754692ad7caSAdrian Chadd 	case 0xd:	return 12;
1755692ad7caSAdrian Chadd 	case 0xf:	return 18;
1756692ad7caSAdrian Chadd 	case 0x5:	return 24;
1757692ad7caSAdrian Chadd 	case 0x7:	return 36;
1758692ad7caSAdrian Chadd 	case 0x9:	return 48;
1759692ad7caSAdrian Chadd 	case 0xb:	return 72;
1760692ad7caSAdrian Chadd 	case 0x1:	return 96;
1761692ad7caSAdrian Chadd 	case 0x3:	return 108;
1762692ad7caSAdrian Chadd 	case 10:	return 2;
1763692ad7caSAdrian Chadd 	case 20:	return 4;
1764692ad7caSAdrian Chadd 	case 55:	return 11;
1765692ad7caSAdrian Chadd 	case 110:	return 22;
1766692ad7caSAdrian Chadd 	default:	return 0;
17676607310bSBenjamin Close 	}
1768692ad7caSAdrian Chadd }
1769692ad7caSAdrian Chadd 
1770692ad7caSAdrian Chadd /* Quickly determine if a given rate is CCK or OFDM. */
1771692ad7caSAdrian Chadd #define WPI_RATE_IS_OFDM(rate)	((rate) >= 12 && (rate) != 22)
17726607310bSBenjamin Close 
17736607310bSBenjamin Close static void
1774692ad7caSAdrian Chadd wpi_rx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc,
17756607310bSBenjamin Close     struct wpi_rx_data *data)
17766607310bSBenjamin Close {
1777b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
1778692ad7caSAdrian Chadd 	const struct ieee80211_cipher *cip = NULL;
1779b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
17806607310bSBenjamin Close 	struct wpi_rx_ring *ring = &sc->rxq;
17816607310bSBenjamin Close 	struct wpi_rx_stat *stat;
17826607310bSBenjamin Close 	struct wpi_rx_head *head;
17836607310bSBenjamin Close 	struct wpi_rx_tail *tail;
1784692ad7caSAdrian Chadd 	struct ieee80211_frame *wh;
17856607310bSBenjamin Close 	struct ieee80211_node *ni;
1786692ad7caSAdrian Chadd 	struct mbuf *m, *m1;
178782f1b132SAndrew Thompson 	bus_addr_t paddr;
1788692ad7caSAdrian Chadd 	uint32_t flags;
1789692ad7caSAdrian Chadd 	uint16_t len;
179082f1b132SAndrew Thompson 	int error;
17916607310bSBenjamin Close 
17926607310bSBenjamin Close 	stat = (struct wpi_rx_stat *)(desc + 1);
17936607310bSBenjamin Close 
17946607310bSBenjamin Close 	if (stat->len > WPI_STAT_MAXLEN) {
1795692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "invalid RX statistic header\n");
1796fae61c69SAdrian Chadd 		goto fail1;
17976607310bSBenjamin Close 	}
17986607310bSBenjamin Close 
1799a71ad787SBernhard Schmidt 	bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
18006607310bSBenjamin Close 	head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1801692ad7caSAdrian Chadd 	len = le16toh(head->len);
1802692ad7caSAdrian Chadd 	tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + len);
1803692ad7caSAdrian Chadd 	flags = le32toh(tail->flags);
18046607310bSBenjamin Close 
1805692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_RECV, "%s: idx %d len %d stat len %u rssi %d"
1806692ad7caSAdrian Chadd 	    " rate %x chan %d tstamp %ju\n", __func__, ring->cur,
1807692ad7caSAdrian Chadd 	    le32toh(desc->len), len, (int8_t)stat->rssi,
1808692ad7caSAdrian Chadd 	    head->plcp, head->chan, (uintmax_t)le64toh(tail->tstamp));
18096607310bSBenjamin Close 
1810692ad7caSAdrian Chadd 	/* Discard frames with a bad FCS early. */
1811692ad7caSAdrian Chadd 	if ((flags & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1812692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_RECV, "%s: RX flags error %x\n",
1813692ad7caSAdrian Chadd 		    __func__, flags);
1814fae61c69SAdrian Chadd 		goto fail1;
1815fcec677dSJuli Mallett 	}
1816692ad7caSAdrian Chadd 	/* Discard frames that are too short. */
1817692ad7caSAdrian Chadd 	if (len < sizeof (*wh)) {
1818692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_RECV, "%s: frame too short: %d\n",
1819692ad7caSAdrian Chadd 		    __func__, len);
1820fae61c69SAdrian Chadd 		goto fail1;
1821fcec677dSJuli Mallett 	}
1822fcec677dSJuli Mallett 
1823692ad7caSAdrian Chadd 	m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1824692ad7caSAdrian Chadd 	if (m1 == NULL) {
1825692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_ANY, "%s: no mbuf to restock ring\n",
1826692ad7caSAdrian Chadd 		    __func__);
1827fae61c69SAdrian Chadd 		goto fail1;
182882f1b132SAndrew Thompson 	}
1829a71ad787SBernhard Schmidt 	bus_dmamap_unload(ring->data_dmat, data->map);
1830a71ad787SBernhard Schmidt 
1831692ad7caSAdrian Chadd 	error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *),
1832692ad7caSAdrian Chadd 	    MJUMPAGESIZE, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
183382f1b132SAndrew Thompson 	if (error != 0 && error != EFBIG) {
183482f1b132SAndrew Thompson 		device_printf(sc->sc_dev,
183582f1b132SAndrew Thompson 		    "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1836692ad7caSAdrian Chadd 		m_freem(m1);
1837692ad7caSAdrian Chadd 
1838692ad7caSAdrian Chadd 		/* Try to reload the old mbuf. */
1839692ad7caSAdrian Chadd 		error = bus_dmamap_load(ring->data_dmat, data->map,
1840692ad7caSAdrian Chadd 		    mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr,
1841692ad7caSAdrian Chadd 		    &paddr, BUS_DMA_NOWAIT);
1842692ad7caSAdrian Chadd 		if (error != 0 && error != EFBIG) {
1843692ad7caSAdrian Chadd 			panic("%s: could not load old RX mbuf", __func__);
1844692ad7caSAdrian Chadd 		}
1845692ad7caSAdrian Chadd 		/* Physical address may have changed. */
1846692ad7caSAdrian Chadd 		ring->desc[ring->cur] = htole32(paddr);
1847692ad7caSAdrian Chadd 		bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map,
1848692ad7caSAdrian Chadd 		    BUS_DMASYNC_PREWRITE);
1849fae61c69SAdrian Chadd 		goto fail1;
185082f1b132SAndrew Thompson 	}
18516607310bSBenjamin Close 
185282f1b132SAndrew Thompson 	m = data->m;
1853692ad7caSAdrian Chadd 	data->m = m1;
1854692ad7caSAdrian Chadd 	/* Update RX descriptor. */
1855692ad7caSAdrian Chadd 	ring->desc[ring->cur] = htole32(paddr);
1856692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1857692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
1858692ad7caSAdrian Chadd 
1859692ad7caSAdrian Chadd 	/* Finalize mbuf. */
18606607310bSBenjamin Close 	m->m_pkthdr.rcvif = ifp;
18616607310bSBenjamin Close 	m->m_data = (caddr_t)(head + 1);
1862692ad7caSAdrian Chadd 	m->m_pkthdr.len = m->m_len = len;
18636607310bSBenjamin Close 
1864692ad7caSAdrian Chadd 	/* Grab a reference to the source node. */
1865692ad7caSAdrian Chadd 	wh = mtod(m, struct ieee80211_frame *);
1866692ad7caSAdrian Chadd 	ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
1867692ad7caSAdrian Chadd 
1868692ad7caSAdrian Chadd 	if (ni != NULL)
1869692ad7caSAdrian Chadd 		cip = ni->ni_ucastkey.wk_cipher;
1870692ad7caSAdrian Chadd 	if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1871692ad7caSAdrian Chadd 	    !IEEE80211_IS_MULTICAST(wh->i_addr1) &&
1872692ad7caSAdrian Chadd 	    cip != NULL && cip->ic_cipher == IEEE80211_CIPHER_AES_CCM) {
1873fae61c69SAdrian Chadd 		if ((flags & WPI_RX_CIPHER_MASK) != WPI_RX_CIPHER_CCMP)
1874fae61c69SAdrian Chadd 			goto fail2;
1875fae61c69SAdrian Chadd 
1876692ad7caSAdrian Chadd 		/* Check whether decryption was successful or not. */
1877692ad7caSAdrian Chadd 		if ((flags & WPI_RX_DECRYPT_MASK) != WPI_RX_DECRYPT_OK) {
1878692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_RECV,
1879692ad7caSAdrian Chadd 			    "CCMP decryption failed 0x%x\n", flags);
1880fae61c69SAdrian Chadd 			goto fail2;
1881692ad7caSAdrian Chadd 		}
1882692ad7caSAdrian Chadd 		m->m_flags |= M_WEP;
1883692ad7caSAdrian Chadd 	}
18846607310bSBenjamin Close 
18855463c4a4SSam Leffler 	if (ieee80211_radiotap_active(ic)) {
18866607310bSBenjamin Close 		struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
18876607310bSBenjamin Close 
18886607310bSBenjamin Close 		tap->wr_flags = 0;
1889692ad7caSAdrian Chadd 		if (head->flags & htole16(WPI_STAT_FLAG_SHPREAMBLE))
1890692ad7caSAdrian Chadd 			tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
18918e4cf38aSAdrian Chadd 		tap->wr_dbm_antsignal = (int8_t)(stat->rssi + WPI_RSSI_OFFSET);
18920b455e8fSAdrian Chadd 		tap->wr_dbm_antnoise = WPI_RSSI_OFFSET;
18936607310bSBenjamin Close 		tap->wr_tsft = tail->tstamp;
18946607310bSBenjamin Close 		tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1895692ad7caSAdrian Chadd 		tap->wr_rate = plcp2rate(head->plcp);
18966607310bSBenjamin Close 	}
18976607310bSBenjamin Close 
18986607310bSBenjamin Close 	WPI_UNLOCK(sc);
18996607310bSBenjamin Close 
1900692ad7caSAdrian Chadd 	/* Send the frame to the 802.11 layer. */
1901b032f27cSSam Leffler 	if (ni != NULL) {
19028e4cf38aSAdrian Chadd 		(void)ieee80211_input(ni, m, stat->rssi, WPI_RSSI_OFFSET);
1903692ad7caSAdrian Chadd 		/* Node is no longer needed. */
19046607310bSBenjamin Close 		ieee80211_free_node(ni);
1905b032f27cSSam Leffler 	} else
19068e4cf38aSAdrian Chadd 		(void)ieee80211_input_all(ic, m, stat->rssi, WPI_RSSI_OFFSET);
1907b032f27cSSam Leffler 
19086607310bSBenjamin Close 	WPI_LOCK(sc);
1909fae61c69SAdrian Chadd 
1910fae61c69SAdrian Chadd 	return;
1911fae61c69SAdrian Chadd 
1912fae61c69SAdrian Chadd fail2:	ieee80211_free_node(ni);
1913fae61c69SAdrian Chadd 	m_freem(m);
1914fae61c69SAdrian Chadd 
1915fae61c69SAdrian Chadd fail1:	if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
19166607310bSBenjamin Close }
19176607310bSBenjamin Close 
19186607310bSBenjamin Close static void
1919692ad7caSAdrian Chadd wpi_rx_statistics(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1920692ad7caSAdrian Chadd     struct wpi_rx_data *data)
19216607310bSBenjamin Close {
1922692ad7caSAdrian Chadd 	/* Ignore */
19236607310bSBenjamin Close }
19246607310bSBenjamin Close 
19256607310bSBenjamin Close static void
1926692ad7caSAdrian Chadd wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
19276607310bSBenjamin Close {
1928692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
1929692ad7caSAdrian Chadd 	struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1930692ad7caSAdrian Chadd 	struct wpi_tx_data *data = &ring->data[desc->idx];
1931692ad7caSAdrian Chadd 	struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1932692ad7caSAdrian Chadd 	struct mbuf *m;
1933692ad7caSAdrian Chadd 	struct ieee80211_node *ni;
1934692ad7caSAdrian Chadd 	struct ieee80211vap *vap;
19354eaf2ee3SAdrian Chadd 	struct ieee80211com *ic;
1936e336bd54SAdrian Chadd 	int ackfailcnt = stat->ackfailcnt / 2;	/* wpi_mrr_setup() */
1937692ad7caSAdrian Chadd 	int status = le32toh(stat->status);
1938692ad7caSAdrian Chadd 
1939692ad7caSAdrian Chadd 	KASSERT(data->ni != NULL, ("no node"));
1940692ad7caSAdrian Chadd 
1941692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
1942692ad7caSAdrian Chadd 
1943692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_XMIT, "%s: "
1944692ad7caSAdrian Chadd 	    "qid %d idx %d retries %d btkillcnt %d rate %x duration %d "
1945fae61c69SAdrian Chadd 	    "status %x\n", __func__, desc->qid, desc->idx, ackfailcnt,
1946692ad7caSAdrian Chadd 	    stat->btkillcnt, stat->rate, le32toh(stat->duration), status);
1947692ad7caSAdrian Chadd 
1948692ad7caSAdrian Chadd 	/* Unmap and free mbuf. */
1949692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1950692ad7caSAdrian Chadd 	bus_dmamap_unload(ring->data_dmat, data->map);
1951692ad7caSAdrian Chadd 	m = data->m, data->m = NULL;
1952692ad7caSAdrian Chadd 	ni = data->ni, data->ni = NULL;
1953692ad7caSAdrian Chadd 	vap = ni->ni_vap;
19544eaf2ee3SAdrian Chadd 	ic = vap->iv_ic;
1955692ad7caSAdrian Chadd 
1956692ad7caSAdrian Chadd 	/*
1957692ad7caSAdrian Chadd 	 * Update rate control statistics for the node.
1958692ad7caSAdrian Chadd 	 */
1959692ad7caSAdrian Chadd 	WPI_UNLOCK(sc);
1960692ad7caSAdrian Chadd 	if ((status & 0xff) != 1) {
1961692ad7caSAdrian Chadd 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1962692ad7caSAdrian Chadd 		ieee80211_ratectl_tx_complete(vap, ni,
1963fae61c69SAdrian Chadd 		    IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL);
1964692ad7caSAdrian Chadd 	} else {
1965692ad7caSAdrian Chadd 		if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1966692ad7caSAdrian Chadd 		ieee80211_ratectl_tx_complete(vap, ni,
1967fae61c69SAdrian Chadd 		    IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL);
1968692ad7caSAdrian Chadd 	}
1969692ad7caSAdrian Chadd 
1970692ad7caSAdrian Chadd 	ieee80211_tx_complete(ni, m, (status & 0xff) != 1);
1971692ad7caSAdrian Chadd 	WPI_LOCK(sc);
1972692ad7caSAdrian Chadd 
1973692ad7caSAdrian Chadd 	sc->sc_tx_timer = 0;
1974692ad7caSAdrian Chadd 	if (--ring->queued < WPI_TX_RING_LOMARK) {
1975692ad7caSAdrian Chadd 		sc->qfullmsk &= ~(1 << ring->qid);
1976692ad7caSAdrian Chadd 		if (sc->qfullmsk == 0 &&
1977692ad7caSAdrian Chadd 		    (ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
1978692ad7caSAdrian Chadd 			ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
19794eaf2ee3SAdrian Chadd 			ieee80211_runtask(ic, &sc->sc_start_task);
1980692ad7caSAdrian Chadd 		}
1981692ad7caSAdrian Chadd 	}
1982692ad7caSAdrian Chadd 
1983692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
1984692ad7caSAdrian Chadd }
1985692ad7caSAdrian Chadd 
1986692ad7caSAdrian Chadd /*
1987692ad7caSAdrian Chadd  * Process a "command done" firmware notification.  This is where we wakeup
1988692ad7caSAdrian Chadd  * processes waiting for a synchronous command completion.
1989692ad7caSAdrian Chadd  */
1990692ad7caSAdrian Chadd static void
1991692ad7caSAdrian Chadd wpi_cmd_done(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1992692ad7caSAdrian Chadd {
19938e4cf38aSAdrian Chadd 	struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
19946607310bSBenjamin Close 	struct wpi_tx_data *data;
19956607310bSBenjamin Close 
1996692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_CMD, "cmd notification qid=%x idx=%d flags=%x "
19976607310bSBenjamin Close 				   "type=%s len=%d\n", desc->qid, desc->idx,
19986607310bSBenjamin Close 				   desc->flags, wpi_cmd_str(desc->type),
1999692ad7caSAdrian Chadd 				   le32toh(desc->len));
20006607310bSBenjamin Close 
20018e4cf38aSAdrian Chadd 	if ((desc->qid & WPI_RX_DESC_QID_MSK) != WPI_CMD_QUEUE_NUM)
2002692ad7caSAdrian Chadd 		return;	/* Not a command ack. */
20036607310bSBenjamin Close 
200445ac43f3SAdrian Chadd 	KASSERT(ring->queued == 0, ("ring->queued must be 0"));
200545ac43f3SAdrian Chadd 
20066607310bSBenjamin Close 	data = &ring->data[desc->idx];
20076607310bSBenjamin Close 
2008692ad7caSAdrian Chadd 	/* If the command was mapped in an mbuf, free it. */
20096607310bSBenjamin Close 	if (data->m != NULL) {
2010692ad7caSAdrian Chadd 		bus_dmamap_sync(ring->data_dmat, data->map,
2011692ad7caSAdrian Chadd 		    BUS_DMASYNC_POSTWRITE);
20126607310bSBenjamin Close 		bus_dmamap_unload(ring->data_dmat, data->map);
20136607310bSBenjamin Close 		m_freem(data->m);
20146607310bSBenjamin Close 		data->m = NULL;
20156607310bSBenjamin Close 	}
20166607310bSBenjamin Close 
20176607310bSBenjamin Close 	wakeup(&ring->cmd[desc->idx]);
20186607310bSBenjamin Close }
20196607310bSBenjamin Close 
20206607310bSBenjamin Close static void
20216607310bSBenjamin Close wpi_notif_intr(struct wpi_softc *sc)
20226607310bSBenjamin Close {
2023b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
2024b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
2025692ad7caSAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2026692ad7caSAdrian Chadd 	int hw;
20276607310bSBenjamin Close 
2028f015cb78SBernhard Schmidt 	bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
2029f015cb78SBernhard Schmidt 	    BUS_DMASYNC_POSTREAD);
2030f015cb78SBernhard Schmidt 
20316607310bSBenjamin Close 	hw = le32toh(sc->shared->next);
2032692ad7caSAdrian Chadd 	hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
2033692ad7caSAdrian Chadd 
2034fae61c69SAdrian Chadd 	while (sc->rxq.cur != hw) {
2035692ad7caSAdrian Chadd 		sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
2036692ad7caSAdrian Chadd 
2037692ad7caSAdrian Chadd 		struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur];
2038692ad7caSAdrian Chadd 		struct wpi_rx_desc *desc;
2039f015cb78SBernhard Schmidt 
2040f015cb78SBernhard Schmidt 		bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2041f015cb78SBernhard Schmidt 		    BUS_DMASYNC_POSTREAD);
2042692ad7caSAdrian Chadd 		desc = mtod(data->m, struct wpi_rx_desc *);
20436607310bSBenjamin Close 
2044692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_NOTIFY,
2045692ad7caSAdrian Chadd 		    "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n",
2046692ad7caSAdrian Chadd 		    __func__, sc->rxq.cur, desc->qid, desc->idx, desc->flags,
2047692ad7caSAdrian Chadd 		    desc->type, wpi_cmd_str(desc->type), le32toh(desc->len));
20486607310bSBenjamin Close 
20498e4cf38aSAdrian Chadd 		if (!(desc->qid & WPI_UNSOLICITED_RX_NOTIF)) {
20508e4cf38aSAdrian Chadd 			/* Reply to a command. */
2051692ad7caSAdrian Chadd 			wpi_cmd_done(sc, desc);
20528e4cf38aSAdrian Chadd 		}
20536607310bSBenjamin Close 
20546607310bSBenjamin Close 		switch (desc->type) {
20556607310bSBenjamin Close 		case WPI_RX_DONE:
2056692ad7caSAdrian Chadd 			/* An 802.11 frame has been received. */
2057692ad7caSAdrian Chadd 			wpi_rx_done(sc, desc, data);
205871258eb2SAdrian Chadd 
205971258eb2SAdrian Chadd 			if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
206071258eb2SAdrian Chadd 				/* wpi_stop() was called. */
206171258eb2SAdrian Chadd 				return;
206271258eb2SAdrian Chadd 			}
206371258eb2SAdrian Chadd 
20646607310bSBenjamin Close 			break;
20656607310bSBenjamin Close 
20666607310bSBenjamin Close 		case WPI_TX_DONE:
2067692ad7caSAdrian Chadd 			/* An 802.11 frame has been transmitted. */
2068692ad7caSAdrian Chadd 			wpi_tx_done(sc, desc);
20696607310bSBenjamin Close 			break;
20706607310bSBenjamin Close 
2071692ad7caSAdrian Chadd 		case WPI_RX_STATISTICS:
2072692ad7caSAdrian Chadd 		case WPI_BEACON_STATISTICS:
2073692ad7caSAdrian Chadd 			wpi_rx_statistics(sc, desc, data);
2074692ad7caSAdrian Chadd 			break;
2075692ad7caSAdrian Chadd 
2076692ad7caSAdrian Chadd 		case WPI_BEACON_MISSED:
2077692ad7caSAdrian Chadd 		{
2078692ad7caSAdrian Chadd 			struct wpi_beacon_missed *miss =
2079692ad7caSAdrian Chadd 			    (struct wpi_beacon_missed *)(desc + 1);
2080692ad7caSAdrian Chadd 			int misses;
2081692ad7caSAdrian Chadd 
2082692ad7caSAdrian Chadd 			bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2083692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
2084692ad7caSAdrian Chadd 			misses = le32toh(miss->consecutive);
2085692ad7caSAdrian Chadd 
2086692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_STATE,
2087692ad7caSAdrian Chadd 			    "%s: beacons missed %d/%d\n", __func__, misses,
2088692ad7caSAdrian Chadd 			    le32toh(miss->total));
2089692ad7caSAdrian Chadd 
2090692ad7caSAdrian Chadd 			if (vap->iv_state == IEEE80211_S_RUN &&
20919facf2b9SAdrian Chadd 			    (ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2092692ad7caSAdrian Chadd 				if (misses >=  vap->iv_bmissthreshold) {
2093692ad7caSAdrian Chadd 					WPI_UNLOCK(sc);
2094692ad7caSAdrian Chadd 					ieee80211_beacon_miss(ic);
2095692ad7caSAdrian Chadd 					WPI_LOCK(sc);
2096692ad7caSAdrian Chadd 				}
2097692ad7caSAdrian Chadd 			}
2098692ad7caSAdrian Chadd 			break;
2099692ad7caSAdrian Chadd 		}
21006607310bSBenjamin Close 		case WPI_UC_READY:
21016607310bSBenjamin Close 		{
21026607310bSBenjamin Close 			struct wpi_ucode_info *uc =
21036607310bSBenjamin Close 			    (struct wpi_ucode_info *)(desc + 1);
21046607310bSBenjamin Close 
2105692ad7caSAdrian Chadd 			/* The microcontroller is ready. */
2106692ad7caSAdrian Chadd 			bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2107692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
2108692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_RESET,
2109692ad7caSAdrian Chadd 			    "microcode alive notification version=%d.%d "
2110692ad7caSAdrian Chadd 			    "subtype=%x alive=%x\n", uc->major, uc->minor,
2111692ad7caSAdrian Chadd 			    uc->subtype, le32toh(uc->valid));
21126607310bSBenjamin Close 
21136607310bSBenjamin Close 			if (le32toh(uc->valid) != 1) {
21146607310bSBenjamin Close 				device_printf(sc->sc_dev,
21156607310bSBenjamin Close 				    "microcontroller initialization failed\n");
21166607310bSBenjamin Close 				wpi_stop_locked(sc);
21176607310bSBenjamin Close 			}
2118692ad7caSAdrian Chadd 			/* Save the address of the error log in SRAM. */
2119692ad7caSAdrian Chadd 			sc->errptr = le32toh(uc->errptr);
21206607310bSBenjamin Close 			break;
21216607310bSBenjamin Close 		}
21226607310bSBenjamin Close 		case WPI_STATE_CHANGED:
21236607310bSBenjamin Close 		{
2124692ad7caSAdrian Chadd 			bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2125692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
2126692ad7caSAdrian Chadd 
21276607310bSBenjamin Close 			uint32_t *status = (uint32_t *)(desc + 1);
2128fae61c69SAdrian Chadd 
2129692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_STATE, "state changed to %x\n",
2130692ad7caSAdrian Chadd 			    le32toh(*status));
2131fae61c69SAdrian Chadd 
21326607310bSBenjamin Close 			if (le32toh(*status) & 1) {
21337964dd56SAdrian Chadd 				WPI_NT_LOCK(sc);
2134eca2eb39SAdrian Chadd 				wpi_clear_node_table(sc);
21357964dd56SAdrian Chadd 				WPI_NT_UNLOCK(sc);
2136692ad7caSAdrian Chadd 				ieee80211_runtask(ic, &sc->sc_radiooff_task);
2137692ad7caSAdrian Chadd 				return;
21386607310bSBenjamin Close 			}
21396607310bSBenjamin Close 			break;
21406607310bSBenjamin Close 		}
21416607310bSBenjamin Close 		case WPI_START_SCAN:
21426607310bSBenjamin Close 		{
2143692ad7caSAdrian Chadd 			bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2144692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
21456845408dSAndrew Thompson #ifdef WPI_DEBUG
21466607310bSBenjamin Close 			struct wpi_start_scan *scan =
21476607310bSBenjamin Close 			    (struct wpi_start_scan *)(desc + 1);
2148692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_SCAN,
2149692ad7caSAdrian Chadd 			    "%s: scanning channel %d status %x\n",
2150692ad7caSAdrian Chadd 			    __func__, scan->chan, le32toh(scan->status));
21516845408dSAndrew Thompson #endif
21526607310bSBenjamin Close 			break;
21536607310bSBenjamin Close 		}
21546607310bSBenjamin Close 		case WPI_STOP_SCAN:
21556607310bSBenjamin Close 		{
2156692ad7caSAdrian Chadd 			bus_dmamap_sync(sc->rxq.data_dmat, data->map,
2157692ad7caSAdrian Chadd 			    BUS_DMASYNC_POSTREAD);
21586845408dSAndrew Thompson #ifdef WPI_DEBUG
21596607310bSBenjamin Close 			struct wpi_stop_scan *scan =
21606607310bSBenjamin Close 			    (struct wpi_stop_scan *)(desc + 1);
2161692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_SCAN,
2162692ad7caSAdrian Chadd 			    "scan finished nchan=%d status=%d chan=%d\n",
2163692ad7caSAdrian Chadd 			    scan->nchan, scan->status, scan->chan);
21646845408dSAndrew Thompson #endif
216582f1b132SAndrew Thompson 			sc->sc_scan_timer = 0;
2166692ad7caSAdrian Chadd 			WPI_UNLOCK(sc);
2167b032f27cSSam Leffler 			ieee80211_scan_next(vap);
2168692ad7caSAdrian Chadd 			WPI_LOCK(sc);
21696607310bSBenjamin Close 			break;
21706607310bSBenjamin Close 		}
2171692ad7caSAdrian Chadd 		}
2172fae61c69SAdrian Chadd 	}
2173692ad7caSAdrian Chadd 
2174692ad7caSAdrian Chadd 	/* Tell the firmware what we have processed. */
2175692ad7caSAdrian Chadd 	wpi_update_rx_ring(sc);
2176692ad7caSAdrian Chadd }
2177692ad7caSAdrian Chadd 
2178692ad7caSAdrian Chadd /*
2179692ad7caSAdrian Chadd  * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up
2180692ad7caSAdrian Chadd  * from power-down sleep mode.
2181692ad7caSAdrian Chadd  */
2182692ad7caSAdrian Chadd static void
2183692ad7caSAdrian Chadd wpi_wakeup_intr(struct wpi_softc *sc)
2184a7099588SBenjamin Close {
2185692ad7caSAdrian Chadd 	int qid;
2186a7099588SBenjamin Close 
2187692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_PWRSAVE,
2188692ad7caSAdrian Chadd 	    "%s: ucode wakeup from power-down sleep\n", __func__);
2189692ad7caSAdrian Chadd 
2190692ad7caSAdrian Chadd 	/* Wakeup RX and TX rings. */
2191692ad7caSAdrian Chadd 	if (sc->rxq.update) {
2192692ad7caSAdrian Chadd 		sc->rxq.update = 0;
2193fae61c69SAdrian Chadd 		wpi_update_rx_ring(sc);
2194a7099588SBenjamin Close 	}
219563f57699SAdrian Chadd 	WPI_TXQ_LOCK(sc);
2196ebf62e08SAdrian Chadd 	for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++) {
2197692ad7caSAdrian Chadd 		struct wpi_tx_ring *ring = &sc->txq[qid];
2198692ad7caSAdrian Chadd 
2199692ad7caSAdrian Chadd 		if (ring->update) {
2200692ad7caSAdrian Chadd 			ring->update = 0;
2201fae61c69SAdrian Chadd 			wpi_update_tx_ring(sc, ring);
2202a7099588SBenjamin Close 		}
22036607310bSBenjamin Close 	}
220463f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
22056607310bSBenjamin Close 
2206692ad7caSAdrian Chadd 	WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ);
22076607310bSBenjamin Close }
22086607310bSBenjamin Close 
2209692ad7caSAdrian Chadd /*
2210692ad7caSAdrian Chadd  * Dump the error log of the firmware when a firmware panic occurs.  Although
2211692ad7caSAdrian Chadd  * we can't debug the firmware because it is neither open source nor free, it
2212692ad7caSAdrian Chadd  * can help us to identify certain classes of problems.
2213692ad7caSAdrian Chadd  */
2214692ad7caSAdrian Chadd static void
2215692ad7caSAdrian Chadd wpi_fatal_intr(struct wpi_softc *sc)
2216692ad7caSAdrian Chadd {
2217692ad7caSAdrian Chadd 	struct wpi_fw_dump dump;
2218692ad7caSAdrian Chadd 	uint32_t i, offset, count;
2219692ad7caSAdrian Chadd 	const uint32_t size_errmsg =
2220692ad7caSAdrian Chadd 	    (sizeof (wpi_fw_errmsg) / sizeof ((wpi_fw_errmsg)[0]));
2221692ad7caSAdrian Chadd 
2222692ad7caSAdrian Chadd 	/* Check that the error log address is valid. */
2223692ad7caSAdrian Chadd 	if (sc->errptr < WPI_FW_DATA_BASE ||
2224692ad7caSAdrian Chadd 	    sc->errptr + sizeof (dump) >
2225692ad7caSAdrian Chadd 	    WPI_FW_DATA_BASE + WPI_FW_DATA_MAXSZ) {
2226692ad7caSAdrian Chadd 		printf("%s: bad firmware error log address 0x%08x\n", __func__,
2227692ad7caSAdrian Chadd 		    sc->errptr);
2228692ad7caSAdrian Chadd 		return;
2229692ad7caSAdrian Chadd 	}
2230692ad7caSAdrian Chadd 	if (wpi_nic_lock(sc) != 0) {
2231692ad7caSAdrian Chadd 		printf("%s: could not read firmware error log\n", __func__);
2232692ad7caSAdrian Chadd 		return;
2233692ad7caSAdrian Chadd 	}
2234692ad7caSAdrian Chadd 	/* Read number of entries in the log. */
2235692ad7caSAdrian Chadd 	count = wpi_mem_read(sc, sc->errptr);
2236692ad7caSAdrian Chadd 	if (count == 0 || count * sizeof (dump) > WPI_FW_DATA_MAXSZ) {
2237692ad7caSAdrian Chadd 		printf("%s: invalid count field (count = %u)\n", __func__,
2238692ad7caSAdrian Chadd 		    count);
2239692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
2240692ad7caSAdrian Chadd 		return;
2241692ad7caSAdrian Chadd 	}
2242692ad7caSAdrian Chadd 	/* Skip "count" field. */
2243692ad7caSAdrian Chadd 	offset = sc->errptr + sizeof (uint32_t);
2244692ad7caSAdrian Chadd 	printf("firmware error log (count = %u):\n", count);
2245692ad7caSAdrian Chadd 	for (i = 0; i < count; i++) {
2246692ad7caSAdrian Chadd 		wpi_mem_read_region_4(sc, offset, (uint32_t *)&dump,
2247692ad7caSAdrian Chadd 		    sizeof (dump) / sizeof (uint32_t));
2248692ad7caSAdrian Chadd 
2249692ad7caSAdrian Chadd 		printf("  error type = \"%s\" (0x%08X)\n",
2250692ad7caSAdrian Chadd 		    (dump.desc < size_errmsg) ?
2251692ad7caSAdrian Chadd 		        wpi_fw_errmsg[dump.desc] : "UNKNOWN",
2252692ad7caSAdrian Chadd 		    dump.desc);
2253692ad7caSAdrian Chadd 		printf("  error data      = 0x%08X\n",
2254692ad7caSAdrian Chadd 		    dump.data);
2255692ad7caSAdrian Chadd 		printf("  branch link     = 0x%08X%08X\n",
2256692ad7caSAdrian Chadd 		    dump.blink[0], dump.blink[1]);
2257692ad7caSAdrian Chadd 		printf("  interrupt link  = 0x%08X%08X\n",
2258692ad7caSAdrian Chadd 		    dump.ilink[0], dump.ilink[1]);
2259692ad7caSAdrian Chadd 		printf("  time            = %u\n", dump.time);
2260692ad7caSAdrian Chadd 
2261692ad7caSAdrian Chadd 		offset += sizeof (dump);
2262692ad7caSAdrian Chadd 	}
2263692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
2264692ad7caSAdrian Chadd 	/* Dump driver status (TX and RX rings) while we're here. */
2265692ad7caSAdrian Chadd 	printf("driver status:\n");
226663f57699SAdrian Chadd 	WPI_TXQ_LOCK(sc);
2267ebf62e08SAdrian Chadd 	for (i = 0; i < WPI_DRV_NTXQUEUES; i++) {
2268692ad7caSAdrian Chadd 		struct wpi_tx_ring *ring = &sc->txq[i];
2269692ad7caSAdrian Chadd 		printf("  tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n",
2270692ad7caSAdrian Chadd 		    i, ring->qid, ring->cur, ring->queued);
2271692ad7caSAdrian Chadd 	}
227263f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
2273692ad7caSAdrian Chadd 	printf("  rx ring: cur=%d\n", sc->rxq.cur);
22746607310bSBenjamin Close }
22756607310bSBenjamin Close 
22766607310bSBenjamin Close static void
22776607310bSBenjamin Close wpi_intr(void *arg)
22786607310bSBenjamin Close {
22796607310bSBenjamin Close 	struct wpi_softc *sc = arg;
2280692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
2281692ad7caSAdrian Chadd 	uint32_t r1, r2;
22826607310bSBenjamin Close 
22836607310bSBenjamin Close 	WPI_LOCK(sc);
22846607310bSBenjamin Close 
2285692ad7caSAdrian Chadd 	/* Disable interrupts. */
2286692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT_MASK, 0);
2287692ad7caSAdrian Chadd 
2288692ad7caSAdrian Chadd 	r1 = WPI_READ(sc, WPI_INT);
2289692ad7caSAdrian Chadd 
22907f1299c5SAdrian Chadd 	if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
22917f1299c5SAdrian Chadd 		goto end;	/* Hardware gone! */
22926607310bSBenjamin Close 
2293692ad7caSAdrian Chadd 	r2 = WPI_READ(sc, WPI_FH_INT);
22946607310bSBenjamin Close 
2295692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_INTR, "%s: reg1=0x%08x reg2=0x%08x\n", __func__,
2296692ad7caSAdrian Chadd 	    r1, r2);
2297692ad7caSAdrian Chadd 
2298692ad7caSAdrian Chadd 	if (r1 == 0 && r2 == 0)
2299692ad7caSAdrian Chadd 		goto done;	/* Interrupt not for us. */
2300692ad7caSAdrian Chadd 
2301692ad7caSAdrian Chadd 	/* Acknowledge interrupts. */
2302692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT, r1);
2303692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_INT, r2);
2304692ad7caSAdrian Chadd 
2305692ad7caSAdrian Chadd 	if (r1 & (WPI_INT_SW_ERR | WPI_INT_HW_ERR)) {
23065efea30fSAndrew Thompson 		struct ieee80211com *ic = ifp->if_l2com;
23075efea30fSAndrew Thompson 
23086607310bSBenjamin Close 		device_printf(sc->sc_dev, "fatal firmware error\n");
2309692ad7caSAdrian Chadd 		wpi_fatal_intr(sc);
2310692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_HW,
2311692ad7caSAdrian Chadd 		    "(%s)\n", (r1 & WPI_INT_SW_ERR) ? "(Software Error)" :
2312692ad7caSAdrian Chadd 		    "(Hardware Error)");
2313692ad7caSAdrian Chadd 		ieee80211_runtask(ic, &sc->sc_reinittask);
23147f1299c5SAdrian Chadd 		goto end;
23156607310bSBenjamin Close 	}
23166607310bSBenjamin Close 
2317692ad7caSAdrian Chadd 	if ((r1 & (WPI_INT_FH_RX | WPI_INT_SW_RX)) ||
2318692ad7caSAdrian Chadd 	    (r2 & WPI_FH_INT_RX))
23196607310bSBenjamin Close 		wpi_notif_intr(sc);
23206607310bSBenjamin Close 
2321692ad7caSAdrian Chadd 	if (r1 & WPI_INT_ALIVE)
2322692ad7caSAdrian Chadd 		wakeup(sc);	/* Firmware is alive. */
23236607310bSBenjamin Close 
2324692ad7caSAdrian Chadd 	if (r1 & WPI_INT_WAKEUP)
2325692ad7caSAdrian Chadd 		wpi_wakeup_intr(sc);
2326692ad7caSAdrian Chadd 
2327692ad7caSAdrian Chadd done:
2328692ad7caSAdrian Chadd 	/* Re-enable interrupts. */
2329692ad7caSAdrian Chadd 	if (ifp->if_flags & IFF_UP)
2330692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
23316607310bSBenjamin Close 
23327f1299c5SAdrian Chadd end:	WPI_UNLOCK(sc);
23336607310bSBenjamin Close }
23346607310bSBenjamin Close 
23356607310bSBenjamin Close static int
2336692ad7caSAdrian Chadd wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf)
23376607310bSBenjamin Close {
23386607310bSBenjamin Close 	struct ieee80211_frame *wh;
2339692ad7caSAdrian Chadd 	struct wpi_tx_cmd *cmd;
2340692ad7caSAdrian Chadd 	struct wpi_tx_data *data;
2341692ad7caSAdrian Chadd 	struct wpi_tx_desc *desc;
2342692ad7caSAdrian Chadd 	struct wpi_tx_ring *ring;
2343692ad7caSAdrian Chadd 	struct mbuf *m1;
2344692ad7caSAdrian Chadd 	bus_dma_segment_t *seg, segs[WPI_MAX_SCATTER];
23458a28176aSAdrian Chadd 	int error, i, hdrlen, nsegs, totlen, pad;
23466607310bSBenjamin Close 
234763f57699SAdrian Chadd 	WPI_TXQ_LOCK(sc);
234863f57699SAdrian Chadd 
2349565248e2SAdrian Chadd 	KASSERT(buf->size <= sizeof(buf->data), ("buffer overflow"));
2350565248e2SAdrian Chadd 
2351692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2352692ad7caSAdrian Chadd 
235363f57699SAdrian Chadd 	if (sc->txq_active == 0) {
235463f57699SAdrian Chadd 		/* wpi_stop() was called */
235563f57699SAdrian Chadd 		error = ENETDOWN;
235663f57699SAdrian Chadd 		goto fail;
235763f57699SAdrian Chadd 	}
235863f57699SAdrian Chadd 
2359692ad7caSAdrian Chadd 	wh = mtod(buf->m, struct ieee80211_frame *);
23608a28176aSAdrian Chadd 	hdrlen = ieee80211_anyhdrsize(wh);
2361692ad7caSAdrian Chadd 	totlen = buf->m->m_pkthdr.len;
2362692ad7caSAdrian Chadd 
23638a28176aSAdrian Chadd 	if (hdrlen & 3) {
23648a28176aSAdrian Chadd 		/* First segment length must be a multiple of 4. */
23658a28176aSAdrian Chadd 		pad = 4 - (hdrlen & 3);
23668a28176aSAdrian Chadd 	} else
23678a28176aSAdrian Chadd 		pad = 0;
23688a28176aSAdrian Chadd 
2369692ad7caSAdrian Chadd 	ring = &sc->txq[buf->ac];
23706607310bSBenjamin Close 	desc = &ring->desc[ring->cur];
23716607310bSBenjamin Close 	data = &ring->data[ring->cur];
23726607310bSBenjamin Close 
2373692ad7caSAdrian Chadd 	/* Prepare TX firmware command. */
23746607310bSBenjamin Close 	cmd = &ring->cmd[ring->cur];
2375692ad7caSAdrian Chadd 	cmd->code = buf->code;
23766607310bSBenjamin Close 	cmd->flags = 0;
23776607310bSBenjamin Close 	cmd->qid = ring->qid;
23786607310bSBenjamin Close 	cmd->idx = ring->cur;
23796607310bSBenjamin Close 
2380692ad7caSAdrian Chadd 	memcpy(cmd->data, buf->data, buf->size);
23816607310bSBenjamin Close 
2382692ad7caSAdrian Chadd 	/* Save and trim IEEE802.11 header. */
23838a28176aSAdrian Chadd 	memcpy((uint8_t *)(cmd->data + buf->size), wh, hdrlen);
23848a28176aSAdrian Chadd 	m_adj(buf->m, hdrlen);
23856607310bSBenjamin Close 
2386692ad7caSAdrian Chadd 	error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, buf->m,
2387692ad7caSAdrian Chadd 	    segs, &nsegs, BUS_DMA_NOWAIT);
23886607310bSBenjamin Close 	if (error != 0 && error != EFBIG) {
2389692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
2390692ad7caSAdrian Chadd 		    "%s: can't map mbuf (error %d)\n", __func__, error);
239163f57699SAdrian Chadd 		goto fail;
23926607310bSBenjamin Close 	}
23936607310bSBenjamin Close 	if (error != 0) {
2394692ad7caSAdrian Chadd 		/* Too many DMA segments, linearize mbuf. */
2395893edbeaSAdrian Chadd 		m1 = m_collapse(buf->m, M_NOWAIT, WPI_MAX_SCATTER - 1);
2396692ad7caSAdrian Chadd 		if (m1 == NULL) {
23976607310bSBenjamin Close 			device_printf(sc->sc_dev,
2398692ad7caSAdrian Chadd 			    "%s: could not defrag mbuf\n", __func__);
239963f57699SAdrian Chadd 			error = ENOBUFS;
240063f57699SAdrian Chadd 			goto fail;
24016607310bSBenjamin Close 		}
2402692ad7caSAdrian Chadd 		buf->m = m1;
24036607310bSBenjamin Close 
24046607310bSBenjamin Close 		error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
2405692ad7caSAdrian Chadd 		    buf->m, segs, &nsegs, BUS_DMA_NOWAIT);
24066607310bSBenjamin Close 		if (error != 0) {
24076607310bSBenjamin Close 			device_printf(sc->sc_dev,
24087167f5fcSAdrian Chadd 			    "%s: can't map mbuf (error %d)\n", __func__,
24097167f5fcSAdrian Chadd 			    error);
241063f57699SAdrian Chadd 			goto fail;
24116607310bSBenjamin Close 		}
24126607310bSBenjamin Close 	}
24136607310bSBenjamin Close 
2414893edbeaSAdrian Chadd 	KASSERT(nsegs < WPI_MAX_SCATTER,
2415893edbeaSAdrian Chadd 	    ("too many DMA segments, nsegs (%d) should be less than %d",
2416893edbeaSAdrian Chadd 	     nsegs, WPI_MAX_SCATTER));
2417893edbeaSAdrian Chadd 
2418692ad7caSAdrian Chadd 	data->m = buf->m;
2419692ad7caSAdrian Chadd 	data->ni = buf->ni;
24206607310bSBenjamin Close 
2421692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n",
2422692ad7caSAdrian Chadd 	    __func__, ring->qid, ring->cur, totlen, nsegs);
24236607310bSBenjamin Close 
2424692ad7caSAdrian Chadd 	/* Fill TX descriptor. */
24258a28176aSAdrian Chadd 	desc->nsegs = WPI_PAD32(totlen + pad) << 4 | (1 + nsegs);
2426692ad7caSAdrian Chadd 	/* First DMA segment is used by the TX command. */
2427692ad7caSAdrian Chadd 	desc->segs[0].addr = htole32(data->cmd_paddr);
24288a28176aSAdrian Chadd 	desc->segs[0].len  = htole32(4 + buf->size + hdrlen + pad);
2429692ad7caSAdrian Chadd 	/* Other DMA segments are for data payload. */
2430692ad7caSAdrian Chadd 	seg = &segs[0];
24316607310bSBenjamin Close 	for (i = 1; i <= nsegs; i++) {
2432692ad7caSAdrian Chadd 		desc->segs[i].addr = htole32(seg->ds_addr);
2433692ad7caSAdrian Chadd 		desc->segs[i].len  = htole32(seg->ds_len);
2434692ad7caSAdrian Chadd 		seg++;
24356607310bSBenjamin Close 	}
24366607310bSBenjamin Close 
24376607310bSBenjamin Close 	bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2438692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
2439692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
24406607310bSBenjamin Close 	bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
24416607310bSBenjamin Close 	    BUS_DMASYNC_PREWRITE);
24426607310bSBenjamin Close 
2443692ad7caSAdrian Chadd 	/* Kick TX ring. */
24446607310bSBenjamin Close 	ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2445692ad7caSAdrian Chadd 	wpi_update_tx_ring(sc, ring);
2446692ad7caSAdrian Chadd 
244745ac43f3SAdrian Chadd 	if (ring->qid < WPI_CMD_QUEUE_NUM) {
2448692ad7caSAdrian Chadd 		/* Mark TX ring as full if we reach a certain threshold. */
2449692ad7caSAdrian Chadd 		if (++ring->queued > WPI_TX_RING_HIMARK)
2450692ad7caSAdrian Chadd 			sc->qfullmsk |= 1 << ring->qid;
2451692ad7caSAdrian Chadd 
245210550f61SAdrian Chadd 		sc->sc_tx_timer = 5;
245345ac43f3SAdrian Chadd 	}
245410550f61SAdrian Chadd 
2455692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
2456692ad7caSAdrian Chadd 
245763f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
245863f57699SAdrian Chadd 
2459692ad7caSAdrian Chadd 	return 0;
246063f57699SAdrian Chadd 
246163f57699SAdrian Chadd fail:	m_freem(buf->m);
246263f57699SAdrian Chadd 
246363f57699SAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
246463f57699SAdrian Chadd 
246563f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
246663f57699SAdrian Chadd 
246763f57699SAdrian Chadd 	return error;
2468692ad7caSAdrian Chadd }
2469692ad7caSAdrian Chadd 
2470692ad7caSAdrian Chadd /*
2471692ad7caSAdrian Chadd  * Construct the data packet for a transmit buffer.
2472692ad7caSAdrian Chadd  */
2473692ad7caSAdrian Chadd static int
2474692ad7caSAdrian Chadd wpi_tx_data(struct wpi_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
2475692ad7caSAdrian Chadd {
2476692ad7caSAdrian Chadd 	const struct ieee80211_txparam *tp;
2477692ad7caSAdrian Chadd 	struct ieee80211vap *vap = ni->ni_vap;
2478692ad7caSAdrian Chadd 	struct ieee80211com *ic = ni->ni_ic;
2479a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
2480692ad7caSAdrian Chadd 	struct ieee80211_channel *chan;
2481692ad7caSAdrian Chadd 	struct ieee80211_frame *wh;
2482692ad7caSAdrian Chadd 	struct ieee80211_key *k = NULL;
2483692ad7caSAdrian Chadd 	struct wpi_buf tx_data;
2484565248e2SAdrian Chadd 	struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2485692ad7caSAdrian Chadd 	uint32_t flags;
2486692ad7caSAdrian Chadd 	uint16_t qos;
2487692ad7caSAdrian Chadd 	uint8_t tid, type;
2488f15520d9SAdrian Chadd 	int ac, error, swcrypt, rate, ismcast, totlen;
2489692ad7caSAdrian Chadd 
2490692ad7caSAdrian Chadd 	wh = mtod(m, struct ieee80211_frame *);
2491692ad7caSAdrian Chadd 	type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2492692ad7caSAdrian Chadd 	ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
2493692ad7caSAdrian Chadd 
2494692ad7caSAdrian Chadd 	/* Select EDCA Access Category and TX ring for this frame. */
2495692ad7caSAdrian Chadd 	if (IEEE80211_QOS_HAS_SEQ(wh)) {
2496692ad7caSAdrian Chadd  		qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
2497692ad7caSAdrian Chadd 		tid = qos & IEEE80211_QOS_TID;
2498692ad7caSAdrian Chadd 	} else {
2499692ad7caSAdrian Chadd 		qos = 0;
2500692ad7caSAdrian Chadd 		tid = 0;
2501692ad7caSAdrian Chadd 	}
2502692ad7caSAdrian Chadd 	ac = M_WME_GETAC(m);
2503692ad7caSAdrian Chadd 
2504692ad7caSAdrian Chadd 	chan = (ni->ni_chan != IEEE80211_CHAN_ANYC) ?
2505692ad7caSAdrian Chadd 		ni->ni_chan : ic->ic_curchan;
2506692ad7caSAdrian Chadd 	tp = &vap->iv_txparms[ieee80211_chan2mode(chan)];
2507692ad7caSAdrian Chadd 
2508692ad7caSAdrian Chadd 	/* Choose a TX rate index. */
2509692ad7caSAdrian Chadd 	if (type == IEEE80211_FC0_TYPE_MGT)
2510692ad7caSAdrian Chadd 		rate = tp->mgmtrate;
2511692ad7caSAdrian Chadd 	else if (ismcast)
2512692ad7caSAdrian Chadd 		rate = tp->mcastrate;
2513692ad7caSAdrian Chadd 	else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2514692ad7caSAdrian Chadd 		rate = tp->ucastrate;
2515692ad7caSAdrian Chadd 	else if (m->m_flags & M_EAPOL)
2516692ad7caSAdrian Chadd 		rate = tp->mgmtrate;
2517692ad7caSAdrian Chadd 	else {
2518692ad7caSAdrian Chadd 		/* XXX pass pktlen */
2519692ad7caSAdrian Chadd 		(void) ieee80211_ratectl_rate(ni, NULL, 0);
2520692ad7caSAdrian Chadd 		rate = ni->ni_txrate;
2521692ad7caSAdrian Chadd 	}
2522692ad7caSAdrian Chadd 
2523692ad7caSAdrian Chadd 	/* Encrypt the frame if need be. */
2524692ad7caSAdrian Chadd 	if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2525692ad7caSAdrian Chadd 		/* Retrieve key for TX. */
2526692ad7caSAdrian Chadd 		k = ieee80211_crypto_encap(ni, m);
2527692ad7caSAdrian Chadd 		if (k == NULL) {
2528692ad7caSAdrian Chadd 			error = ENOBUFS;
2529692ad7caSAdrian Chadd 			goto fail;
2530692ad7caSAdrian Chadd 		}
2531f15520d9SAdrian Chadd 		swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2532f15520d9SAdrian Chadd 
2533692ad7caSAdrian Chadd 		/* 802.11 header may have moved. */
2534692ad7caSAdrian Chadd 		wh = mtod(m, struct ieee80211_frame *);
2535692ad7caSAdrian Chadd 	}
25368a28176aSAdrian Chadd 	totlen = m->m_pkthdr.len;
2537692ad7caSAdrian Chadd 
2538692ad7caSAdrian Chadd 	if (ieee80211_radiotap_active_vap(vap)) {
2539692ad7caSAdrian Chadd 		struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2540692ad7caSAdrian Chadd 
25418a28176aSAdrian Chadd 		tap->wt_flags = 0;
2542692ad7caSAdrian Chadd 		tap->wt_rate = rate;
2543692ad7caSAdrian Chadd 		if (k != NULL)
2544692ad7caSAdrian Chadd 			tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2545692ad7caSAdrian Chadd 
2546692ad7caSAdrian Chadd 		ieee80211_radiotap_tx(vap, m);
2547692ad7caSAdrian Chadd 	}
2548692ad7caSAdrian Chadd 
2549692ad7caSAdrian Chadd 	flags = 0;
2550692ad7caSAdrian Chadd 	if (!ismcast) {
2551692ad7caSAdrian Chadd 		/* Unicast frame, check if an ACK is expected. */
2552692ad7caSAdrian Chadd 		if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
2553692ad7caSAdrian Chadd 		    IEEE80211_QOS_ACKPOLICY_NOACK)
2554692ad7caSAdrian Chadd 			flags |= WPI_TX_NEED_ACK;
2555692ad7caSAdrian Chadd 	}
2556692ad7caSAdrian Chadd 
2557fae61c69SAdrian Chadd 	if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG)
2558fae61c69SAdrian Chadd 		flags |= WPI_TX_MORE_FRAG;	/* Cannot happen yet. */
2559fae61c69SAdrian Chadd 
2560692ad7caSAdrian Chadd 	/* Check if frame must be protected using RTS/CTS or CTS-to-self. */
2561692ad7caSAdrian Chadd 	if (!ismcast) {
2562692ad7caSAdrian Chadd 		/* NB: Group frames are sent using CCK in 802.11b/g. */
2563692ad7caSAdrian Chadd 		if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
2564692ad7caSAdrian Chadd 			flags |= WPI_TX_NEED_RTS;
2565692ad7caSAdrian Chadd 		} else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
2566692ad7caSAdrian Chadd 		    WPI_RATE_IS_OFDM(rate)) {
2567692ad7caSAdrian Chadd 			if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2568692ad7caSAdrian Chadd 				flags |= WPI_TX_NEED_CTS;
2569692ad7caSAdrian Chadd 			else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2570692ad7caSAdrian Chadd 				flags |= WPI_TX_NEED_RTS;
2571692ad7caSAdrian Chadd 		}
2572692ad7caSAdrian Chadd 
2573692ad7caSAdrian Chadd 		if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2574692ad7caSAdrian Chadd 			flags |= WPI_TX_FULL_TXOP;
2575692ad7caSAdrian Chadd 	}
2576692ad7caSAdrian Chadd 
2577565248e2SAdrian Chadd 	memset(tx, 0, sizeof (struct wpi_cmd_data));
2578692ad7caSAdrian Chadd 	if (type == IEEE80211_FC0_TYPE_MGT) {
2579692ad7caSAdrian Chadd 		uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2580692ad7caSAdrian Chadd 
2581692ad7caSAdrian Chadd 		/* Tell HW to set timestamp in probe responses. */
2582692ad7caSAdrian Chadd 		if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2583692ad7caSAdrian Chadd 			flags |= WPI_TX_INSERT_TSTAMP;
2584692ad7caSAdrian Chadd 		if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2585692ad7caSAdrian Chadd 		    subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2586565248e2SAdrian Chadd 			tx->timeout = htole16(3);
2587692ad7caSAdrian Chadd 		else
2588565248e2SAdrian Chadd 			tx->timeout = htole16(2);
2589692ad7caSAdrian Chadd 	}
2590692ad7caSAdrian Chadd 
2591692ad7caSAdrian Chadd 	if (ismcast || type != IEEE80211_FC0_TYPE_DATA)
2592565248e2SAdrian Chadd 		tx->id = WPI_ID_BROADCAST;
2593692ad7caSAdrian Chadd 	else {
2594692ad7caSAdrian Chadd 		if (wn->id == WPI_ID_UNDEFINED) {
2595692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
2596692ad7caSAdrian Chadd 			    "%s: undefined node id\n", __func__);
2597692ad7caSAdrian Chadd 			error = EINVAL;
2598692ad7caSAdrian Chadd 			goto fail;
2599692ad7caSAdrian Chadd 		}
2600692ad7caSAdrian Chadd 
2601565248e2SAdrian Chadd 		tx->id = wn->id;
2602692ad7caSAdrian Chadd 	}
2603692ad7caSAdrian Chadd 
2604692ad7caSAdrian Chadd 	if (type != IEEE80211_FC0_TYPE_MGT)
2605565248e2SAdrian Chadd 		tx->data_ntries = tp->maxretry;
2606692ad7caSAdrian Chadd 
2607f15520d9SAdrian Chadd 	if (k != NULL && !swcrypt) {
2608f15520d9SAdrian Chadd 		switch (k->wk_cipher->ic_cipher) {
2609f15520d9SAdrian Chadd 		case IEEE80211_CIPHER_AES_CCM:
2610565248e2SAdrian Chadd 			tx->security = WPI_CIPHER_CCMP;
2611f15520d9SAdrian Chadd 			break;
2612f15520d9SAdrian Chadd 
2613f15520d9SAdrian Chadd 		default:
2614f15520d9SAdrian Chadd 			break;
2615f15520d9SAdrian Chadd 		}
2616f15520d9SAdrian Chadd 
2617565248e2SAdrian Chadd 		memcpy(tx->key, k->wk_key, k->wk_keylen);
2618f15520d9SAdrian Chadd 	}
2619f15520d9SAdrian Chadd 
2620565248e2SAdrian Chadd 	tx->len = htole16(totlen);
2621565248e2SAdrian Chadd 	tx->flags = htole32(flags);
2622565248e2SAdrian Chadd 	tx->plcp = rate2plcp(rate);
2623565248e2SAdrian Chadd 	tx->tid = tid;
2624565248e2SAdrian Chadd 	tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2625565248e2SAdrian Chadd 	tx->ofdm_mask = 0xff;
2626565248e2SAdrian Chadd 	tx->cck_mask = 0x0f;
2627565248e2SAdrian Chadd 	tx->rts_ntries = 7;
2628692ad7caSAdrian Chadd 
2629692ad7caSAdrian Chadd 	tx_data.ni = ni;
2630692ad7caSAdrian Chadd 	tx_data.m = m;
2631565248e2SAdrian Chadd 	tx_data.size = sizeof(struct wpi_cmd_data);
2632692ad7caSAdrian Chadd 	tx_data.code = WPI_CMD_TX_DATA;
2633692ad7caSAdrian Chadd 	tx_data.ac = ac;
2634692ad7caSAdrian Chadd 
2635692ad7caSAdrian Chadd 	return wpi_cmd2(sc, &tx_data);
2636692ad7caSAdrian Chadd 
2637692ad7caSAdrian Chadd fail:	m_freem(m);
2638692ad7caSAdrian Chadd 	return error;
2639692ad7caSAdrian Chadd }
2640692ad7caSAdrian Chadd 
2641692ad7caSAdrian Chadd static int
26427167f5fcSAdrian Chadd wpi_tx_data_raw(struct wpi_softc *sc, struct mbuf *m,
26437167f5fcSAdrian Chadd     struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
2644692ad7caSAdrian Chadd {
2645692ad7caSAdrian Chadd 	struct ieee80211vap *vap = ni->ni_vap;
2646*735c6067SAdrian Chadd 	struct ieee80211_key *k = NULL;
2647692ad7caSAdrian Chadd 	struct ieee80211_frame *wh;
2648692ad7caSAdrian Chadd 	struct wpi_buf tx_data;
2649565248e2SAdrian Chadd 	struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data;
2650692ad7caSAdrian Chadd 	uint32_t flags;
2651692ad7caSAdrian Chadd 	uint8_t type;
2652*735c6067SAdrian Chadd 	int ac, rate, swcrypt, totlen;
2653692ad7caSAdrian Chadd 
2654692ad7caSAdrian Chadd 	wh = mtod(m, struct ieee80211_frame *);
2655692ad7caSAdrian Chadd 	type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2656692ad7caSAdrian Chadd 
2657692ad7caSAdrian Chadd 	ac = params->ibp_pri & 3;
2658692ad7caSAdrian Chadd 
2659692ad7caSAdrian Chadd 	/* Choose a TX rate index. */
2660692ad7caSAdrian Chadd 	rate = params->ibp_rate0;
2661692ad7caSAdrian Chadd 
2662692ad7caSAdrian Chadd 	flags = 0;
2663692ad7caSAdrian Chadd 	if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
2664692ad7caSAdrian Chadd 		flags |= WPI_TX_NEED_ACK;
2665692ad7caSAdrian Chadd 	if (params->ibp_flags & IEEE80211_BPF_RTS)
2666692ad7caSAdrian Chadd 		flags |= WPI_TX_NEED_RTS;
2667692ad7caSAdrian Chadd 	if (params->ibp_flags & IEEE80211_BPF_CTS)
2668692ad7caSAdrian Chadd 		flags |= WPI_TX_NEED_CTS;
2669692ad7caSAdrian Chadd 	if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS))
2670692ad7caSAdrian Chadd 		flags |= WPI_TX_FULL_TXOP;
2671692ad7caSAdrian Chadd 
2672*735c6067SAdrian Chadd 	/* Encrypt the frame if need be. */
2673*735c6067SAdrian Chadd 	if (params->ibp_flags & IEEE80211_BPF_CRYPTO) {
2674*735c6067SAdrian Chadd 		/* Retrieve key for TX. */
2675*735c6067SAdrian Chadd 		k = ieee80211_crypto_encap(ni, m);
2676*735c6067SAdrian Chadd 		if (k == NULL) {
2677*735c6067SAdrian Chadd 			m_freem(m);
2678*735c6067SAdrian Chadd 			return ENOBUFS;
2679*735c6067SAdrian Chadd 		}
2680*735c6067SAdrian Chadd 		swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT;
2681*735c6067SAdrian Chadd 
2682*735c6067SAdrian Chadd 		/* 802.11 header may have moved. */
2683*735c6067SAdrian Chadd 		wh = mtod(m, struct ieee80211_frame *);
2684*735c6067SAdrian Chadd 	}
2685*735c6067SAdrian Chadd 	totlen = m->m_pkthdr.len;
2686*735c6067SAdrian Chadd 
2687692ad7caSAdrian Chadd 	if (ieee80211_radiotap_active_vap(vap)) {
2688692ad7caSAdrian Chadd 		struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
2689692ad7caSAdrian Chadd 
2690692ad7caSAdrian Chadd 		tap->wt_flags = 0;
2691692ad7caSAdrian Chadd 		tap->wt_rate = rate;
2692*735c6067SAdrian Chadd 		if (params->ibp_flags & IEEE80211_BPF_CRYPTO)
2693*735c6067SAdrian Chadd 			tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2694692ad7caSAdrian Chadd 
2695692ad7caSAdrian Chadd 		ieee80211_radiotap_tx(vap, m);
2696692ad7caSAdrian Chadd 	}
2697692ad7caSAdrian Chadd 
2698565248e2SAdrian Chadd 	memset(tx, 0, sizeof (struct wpi_cmd_data));
2699692ad7caSAdrian Chadd 	if (type == IEEE80211_FC0_TYPE_MGT) {
2700692ad7caSAdrian Chadd 		uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2701692ad7caSAdrian Chadd 
2702692ad7caSAdrian Chadd 		/* Tell HW to set timestamp in probe responses. */
2703692ad7caSAdrian Chadd 		if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
2704692ad7caSAdrian Chadd 			flags |= WPI_TX_INSERT_TSTAMP;
2705692ad7caSAdrian Chadd 		if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2706692ad7caSAdrian Chadd 		    subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2707565248e2SAdrian Chadd 			tx->timeout = htole16(3);
2708692ad7caSAdrian Chadd 		else
2709565248e2SAdrian Chadd 			tx->timeout = htole16(2);
2710692ad7caSAdrian Chadd 	}
2711692ad7caSAdrian Chadd 
2712*735c6067SAdrian Chadd 	if (k != NULL && !swcrypt) {
2713*735c6067SAdrian Chadd 		switch (k->wk_cipher->ic_cipher) {
2714*735c6067SAdrian Chadd 		case IEEE80211_CIPHER_AES_CCM:
2715*735c6067SAdrian Chadd 			tx->security = WPI_CIPHER_CCMP;
2716*735c6067SAdrian Chadd 			break;
2717*735c6067SAdrian Chadd 
2718*735c6067SAdrian Chadd 		default:
2719*735c6067SAdrian Chadd 			break;
2720*735c6067SAdrian Chadd 		}
2721*735c6067SAdrian Chadd 
2722*735c6067SAdrian Chadd 		memcpy(tx->key, k->wk_key, k->wk_keylen);
2723*735c6067SAdrian Chadd 	}
2724*735c6067SAdrian Chadd 
2725565248e2SAdrian Chadd 	tx->len = htole16(totlen);
2726565248e2SAdrian Chadd 	tx->flags = htole32(flags);
2727565248e2SAdrian Chadd 	tx->plcp = rate2plcp(rate);
2728565248e2SAdrian Chadd 	tx->id = WPI_ID_BROADCAST;
2729565248e2SAdrian Chadd 	tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
2730565248e2SAdrian Chadd 	tx->rts_ntries = params->ibp_try1;
2731565248e2SAdrian Chadd 	tx->data_ntries = params->ibp_try0;
2732692ad7caSAdrian Chadd 
2733692ad7caSAdrian Chadd 	tx_data.ni = ni;
2734692ad7caSAdrian Chadd 	tx_data.m = m;
2735565248e2SAdrian Chadd 	tx_data.size = sizeof(struct wpi_cmd_data);
2736692ad7caSAdrian Chadd 	tx_data.code = WPI_CMD_TX_DATA;
2737692ad7caSAdrian Chadd 	tx_data.ac = ac;
2738692ad7caSAdrian Chadd 
2739692ad7caSAdrian Chadd 	return wpi_cmd2(sc, &tx_data);
2740692ad7caSAdrian Chadd }
2741692ad7caSAdrian Chadd 
2742692ad7caSAdrian Chadd static int
2743692ad7caSAdrian Chadd wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2744692ad7caSAdrian Chadd     const struct ieee80211_bpf_params *params)
2745692ad7caSAdrian Chadd {
2746692ad7caSAdrian Chadd 	struct ieee80211com *ic = ni->ni_ic;
2747692ad7caSAdrian Chadd 	struct ifnet *ifp = ic->ic_ifp;
2748692ad7caSAdrian Chadd 	struct wpi_softc *sc = ifp->if_softc;
2749692ad7caSAdrian Chadd 	int error = 0;
2750692ad7caSAdrian Chadd 
2751692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2752692ad7caSAdrian Chadd 
2753692ad7caSAdrian Chadd 	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2754692ad7caSAdrian Chadd 		ieee80211_free_node(ni);
2755692ad7caSAdrian Chadd 		m_freem(m);
2756692ad7caSAdrian Chadd 		return ENETDOWN;
2757692ad7caSAdrian Chadd 	}
2758692ad7caSAdrian Chadd 
2759692ad7caSAdrian Chadd 	WPI_LOCK(sc);
2760692ad7caSAdrian Chadd 	if (params == NULL) {
2761692ad7caSAdrian Chadd 		/*
2762692ad7caSAdrian Chadd 		 * Legacy path; interpret frame contents to decide
2763692ad7caSAdrian Chadd 		 * precisely how to send the frame.
2764692ad7caSAdrian Chadd 		 */
2765692ad7caSAdrian Chadd 		error = wpi_tx_data(sc, m, ni);
2766692ad7caSAdrian Chadd 	} else {
2767692ad7caSAdrian Chadd 		/*
2768692ad7caSAdrian Chadd 		 * Caller supplied explicit parameters to use in
2769692ad7caSAdrian Chadd 		 * sending the frame.
2770692ad7caSAdrian Chadd 		 */
2771692ad7caSAdrian Chadd 		error = wpi_tx_data_raw(sc, m, ni, params);
2772692ad7caSAdrian Chadd 	}
2773692ad7caSAdrian Chadd 	WPI_UNLOCK(sc);
2774692ad7caSAdrian Chadd 
2775692ad7caSAdrian Chadd 	if (error != 0) {
2776692ad7caSAdrian Chadd 		/* NB: m is reclaimed on tx failure */
2777692ad7caSAdrian Chadd 		ieee80211_free_node(ni);
2778692ad7caSAdrian Chadd 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2779692ad7caSAdrian Chadd 
2780692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
2781692ad7caSAdrian Chadd 
2782692ad7caSAdrian Chadd 		return error;
2783692ad7caSAdrian Chadd 	}
2784692ad7caSAdrian Chadd 
2785692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
27866607310bSBenjamin Close 
27876607310bSBenjamin Close 	return 0;
27886607310bSBenjamin Close }
27896607310bSBenjamin Close 
27906607310bSBenjamin Close /**
27916607310bSBenjamin Close  * Process data waiting to be sent on the IFNET output queue
27926607310bSBenjamin Close  */
27936607310bSBenjamin Close static void
27946607310bSBenjamin Close wpi_start(struct ifnet *ifp)
27956607310bSBenjamin Close {
27966607310bSBenjamin Close 	struct wpi_softc *sc = ifp->if_softc;
2797b032f27cSSam Leffler 
2798b032f27cSSam Leffler 	WPI_LOCK(sc);
2799b032f27cSSam Leffler 	wpi_start_locked(ifp);
2800b032f27cSSam Leffler 	WPI_UNLOCK(sc);
2801b032f27cSSam Leffler }
2802b032f27cSSam Leffler 
2803b032f27cSSam Leffler static void
2804b032f27cSSam Leffler wpi_start_locked(struct ifnet *ifp)
2805b032f27cSSam Leffler {
2806b032f27cSSam Leffler 	struct wpi_softc *sc = ifp->if_softc;
28076607310bSBenjamin Close 	struct ieee80211_node *ni;
2808b032f27cSSam Leffler 	struct mbuf *m;
2809b032f27cSSam Leffler 
2810b032f27cSSam Leffler 	WPI_LOCK_ASSERT(sc);
28116607310bSBenjamin Close 
2812692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__);
2813692ad7caSAdrian Chadd 
2814692ad7caSAdrian Chadd 	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
2815692ad7caSAdrian Chadd 	    (ifp->if_drv_flags & IFF_DRV_OACTIVE))
281682f1b132SAndrew Thompson 		return;
281782f1b132SAndrew Thompson 
28186607310bSBenjamin Close 	for (;;) {
2819692ad7caSAdrian Chadd 		if (sc->qfullmsk != 0) {
2820692ad7caSAdrian Chadd 			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2821692ad7caSAdrian Chadd 			break;
2822692ad7caSAdrian Chadd 		}
2823fcec677dSJuli Mallett 		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2824b032f27cSSam Leffler 		if (m == NULL)
28256607310bSBenjamin Close 			break;
2826b032f27cSSam Leffler 		ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
2827692ad7caSAdrian Chadd 		if (wpi_tx_data(sc, m, ni) != 0) {
2828692ad7caSAdrian Chadd 			WPI_UNLOCK(sc);
28296607310bSBenjamin Close 			ieee80211_free_node(ni);
2830b032f27cSSam Leffler 			WPI_LOCK(sc);
2831692ad7caSAdrian Chadd 			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
283210550f61SAdrian Chadd 		}
2833b032f27cSSam Leffler 	}
2834b032f27cSSam Leffler 
2835692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__);
2836692ad7caSAdrian Chadd }
2837b032f27cSSam Leffler 
2838692ad7caSAdrian Chadd static void
28394eaf2ee3SAdrian Chadd wpi_start_task(void *arg0, int pending)
28404eaf2ee3SAdrian Chadd {
28414eaf2ee3SAdrian Chadd 	struct wpi_softc *sc = arg0;
28424eaf2ee3SAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
28434eaf2ee3SAdrian Chadd 
28444eaf2ee3SAdrian Chadd 	wpi_start(ifp);
28454eaf2ee3SAdrian Chadd }
28464eaf2ee3SAdrian Chadd 
28474eaf2ee3SAdrian Chadd static void
2848692ad7caSAdrian Chadd wpi_watchdog_rfkill(void *arg)
2849692ad7caSAdrian Chadd {
2850692ad7caSAdrian Chadd 	struct wpi_softc *sc = arg;
2851692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
2852692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
2853692ad7caSAdrian Chadd 
2854692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_WATCHDOG, "RFkill Watchdog: tick\n");
2855692ad7caSAdrian Chadd 
2856692ad7caSAdrian Chadd 	/* No need to lock firmware memory. */
2857692ad7caSAdrian Chadd 	if ((wpi_prph_read(sc, WPI_APMG_RFKILL) & 0x1) == 0) {
2858692ad7caSAdrian Chadd 		/* Radio kill switch is still off. */
2859692ad7caSAdrian Chadd 		callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
2860692ad7caSAdrian Chadd 		    sc);
2861692ad7caSAdrian Chadd 	} else
2862692ad7caSAdrian Chadd 		ieee80211_runtask(ic, &sc->sc_radioon_task);
2863692ad7caSAdrian Chadd }
2864692ad7caSAdrian Chadd 
2865692ad7caSAdrian Chadd /**
2866692ad7caSAdrian Chadd  * Called every second, wpi_watchdog used by the watch dog timer
2867692ad7caSAdrian Chadd  * to check that the card is still alive
2868692ad7caSAdrian Chadd  */
2869692ad7caSAdrian Chadd static void
2870692ad7caSAdrian Chadd wpi_watchdog(void *arg)
2871692ad7caSAdrian Chadd {
2872692ad7caSAdrian Chadd 	struct wpi_softc *sc = arg;
2873692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
2874692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
2875692ad7caSAdrian Chadd 
2876692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_WATCHDOG, "Watchdog: tick\n");
2877692ad7caSAdrian Chadd 
2878692ad7caSAdrian Chadd 	if (sc->sc_tx_timer > 0) {
2879692ad7caSAdrian Chadd 		if (--sc->sc_tx_timer == 0) {
2880692ad7caSAdrian Chadd 			if_printf(ifp, "device timeout\n");
2881c8dfaf38SGleb Smirnoff 			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
2882692ad7caSAdrian Chadd 			ieee80211_runtask(ic, &sc->sc_reinittask);
2883692ad7caSAdrian Chadd 		}
2884692ad7caSAdrian Chadd 	}
2885692ad7caSAdrian Chadd 
2886692ad7caSAdrian Chadd 	if (sc->sc_scan_timer > 0) {
2887692ad7caSAdrian Chadd 		struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2888692ad7caSAdrian Chadd 		if (--sc->sc_scan_timer == 0 && vap != NULL) {
2889692ad7caSAdrian Chadd 			if_printf(ifp, "scan timeout\n");
2890692ad7caSAdrian Chadd 			ieee80211_cancel_scan(vap);
2891692ad7caSAdrian Chadd 			ieee80211_runtask(ic, &sc->sc_reinittask);
2892692ad7caSAdrian Chadd 		}
2893692ad7caSAdrian Chadd 	}
2894692ad7caSAdrian Chadd 
2895692ad7caSAdrian Chadd 	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2896692ad7caSAdrian Chadd 		callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
28976607310bSBenjamin Close }
28986607310bSBenjamin Close 
28996607310bSBenjamin Close static int
29006607310bSBenjamin Close wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
29016607310bSBenjamin Close {
29026607310bSBenjamin Close 	struct wpi_softc *sc = ifp->if_softc;
2903b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
2904692ad7caSAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2905b032f27cSSam Leffler 	struct ifreq *ifr = (struct ifreq *) data;
2906692ad7caSAdrian Chadd 	int error = 0, startall = 0, stop = 0;
29076607310bSBenjamin Close 
29086607310bSBenjamin Close 	switch (cmd) {
2909692ad7caSAdrian Chadd 	case SIOCGIFADDR:
2910692ad7caSAdrian Chadd 		error = ether_ioctl(ifp, cmd, data);
2911692ad7caSAdrian Chadd 		break;
29126607310bSBenjamin Close 	case SIOCSIFFLAGS:
291331a8c1edSAndrew Thompson 		WPI_LOCK(sc);
2914692ad7caSAdrian Chadd 		if (ifp->if_flags & IFF_UP) {
2915b032f27cSSam Leffler 			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2916692ad7caSAdrian Chadd 				wpi_init_locked(sc);
2917692ad7caSAdrian Chadd 				if (WPI_READ(sc, WPI_GP_CNTRL) &
2918692ad7caSAdrian Chadd 				    WPI_GP_CNTRL_RFKILL)
2919b032f27cSSam Leffler 					startall = 1;
2920692ad7caSAdrian Chadd 				else
2921692ad7caSAdrian Chadd 					stop = 1;
2922b032f27cSSam Leffler 			}
2923692ad7caSAdrian Chadd 		} else if (ifp->if_drv_flags & IFF_DRV_RUNNING)
29246607310bSBenjamin Close 			wpi_stop_locked(sc);
29256607310bSBenjamin Close 		WPI_UNLOCK(sc);
2926b032f27cSSam Leffler 		if (startall)
2927b032f27cSSam Leffler 			ieee80211_start_all(ic);
2928692ad7caSAdrian Chadd 		else if (vap != NULL && stop)
2929692ad7caSAdrian Chadd 			ieee80211_stop(vap);
293031a8c1edSAndrew Thompson 		break;
293131a8c1edSAndrew Thompson 	case SIOCGIFMEDIA:
293231a8c1edSAndrew Thompson 		error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
293331a8c1edSAndrew Thompson 		break;
293431a8c1edSAndrew Thompson 	default:
293531a8c1edSAndrew Thompson 		error = EINVAL;
293631a8c1edSAndrew Thompson 		break;
293731a8c1edSAndrew Thompson 	}
29386607310bSBenjamin Close 	return error;
29396607310bSBenjamin Close }
29406607310bSBenjamin Close 
29416607310bSBenjamin Close /*
29426607310bSBenjamin Close  * Send a command to the firmware.
29436607310bSBenjamin Close  */
29446607310bSBenjamin Close static int
2945692ad7caSAdrian Chadd wpi_cmd(struct wpi_softc *sc, int code, const void *buf, size_t size,
2946692ad7caSAdrian Chadd     int async)
29476607310bSBenjamin Close {
29488e4cf38aSAdrian Chadd 	struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM];
29496607310bSBenjamin Close 	struct wpi_tx_desc *desc;
2950692ad7caSAdrian Chadd 	struct wpi_tx_data *data;
29516607310bSBenjamin Close 	struct wpi_tx_cmd *cmd;
2952692ad7caSAdrian Chadd 	struct mbuf *m;
2953692ad7caSAdrian Chadd 	bus_addr_t paddr;
2954692ad7caSAdrian Chadd 	int totlen, error;
29556607310bSBenjamin Close 
295663f57699SAdrian Chadd 	WPI_TXQ_LOCK(sc);
295763f57699SAdrian Chadd 
2958692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
2959692ad7caSAdrian Chadd 
296063f57699SAdrian Chadd 	if (sc->txq_active == 0) {
296163f57699SAdrian Chadd 		/* wpi_stop() was called */
296263f57699SAdrian Chadd 		error = 0;
296363f57699SAdrian Chadd 		goto fail;
296463f57699SAdrian Chadd 	}
296563f57699SAdrian Chadd 
2966692ad7caSAdrian Chadd 	if (async == 0)
29676607310bSBenjamin Close 		WPI_LOCK_ASSERT(sc);
29686607310bSBenjamin Close 
2969692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_CMD, "wpi_cmd %s size %zu async %d\n",
2970692ad7caSAdrian Chadd 	    wpi_cmd_str(code), size, async);
29716607310bSBenjamin Close 
29726607310bSBenjamin Close 	desc = &ring->desc[ring->cur];
2973692ad7caSAdrian Chadd 	data = &ring->data[ring->cur];
2974692ad7caSAdrian Chadd 	totlen = 4 + size;
2975692ad7caSAdrian Chadd 
2976692ad7caSAdrian Chadd 	if (size > sizeof cmd->data) {
2977692ad7caSAdrian Chadd 		/* Command is too large to fit in a descriptor. */
297863f57699SAdrian Chadd 		if (totlen > MCLBYTES) {
297963f57699SAdrian Chadd 			error = EINVAL;
298063f57699SAdrian Chadd 			goto fail;
298163f57699SAdrian Chadd 		}
2982692ad7caSAdrian Chadd 		m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
298363f57699SAdrian Chadd 		if (m == NULL) {
298463f57699SAdrian Chadd 			error = ENOMEM;
298563f57699SAdrian Chadd 			goto fail;
298663f57699SAdrian Chadd 		}
2987692ad7caSAdrian Chadd 		cmd = mtod(m, struct wpi_tx_cmd *);
2988692ad7caSAdrian Chadd 		error = bus_dmamap_load(ring->data_dmat, data->map, cmd,
2989692ad7caSAdrian Chadd 		    totlen, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
2990692ad7caSAdrian Chadd 		if (error != 0) {
2991692ad7caSAdrian Chadd 			m_freem(m);
299263f57699SAdrian Chadd 			goto fail;
2993692ad7caSAdrian Chadd 		}
2994692ad7caSAdrian Chadd 		data->m = m;
2995692ad7caSAdrian Chadd 	} else {
29966607310bSBenjamin Close 		cmd = &ring->cmd[ring->cur];
2997692ad7caSAdrian Chadd 		paddr = data->cmd_paddr;
2998692ad7caSAdrian Chadd 	}
29996607310bSBenjamin Close 
30006607310bSBenjamin Close 	cmd->code = code;
30016607310bSBenjamin Close 	cmd->flags = 0;
30026607310bSBenjamin Close 	cmd->qid = ring->qid;
30036607310bSBenjamin Close 	cmd->idx = ring->cur;
30046607310bSBenjamin Close 	memcpy(cmd->data, buf, size);
30056607310bSBenjamin Close 
3006692ad7caSAdrian Chadd 	desc->nsegs = 1 + (WPI_PAD32(size) << 4);
3007692ad7caSAdrian Chadd 	desc->segs[0].addr = htole32(paddr);
3008692ad7caSAdrian Chadd 	desc->segs[0].len  = htole32(totlen);
30096607310bSBenjamin Close 
3010692ad7caSAdrian Chadd 	if (size > sizeof cmd->data) {
3011692ad7caSAdrian Chadd 		bus_dmamap_sync(ring->data_dmat, data->map,
3012692ad7caSAdrian Chadd 		    BUS_DMASYNC_PREWRITE);
3013692ad7caSAdrian Chadd 	} else {
3014692ad7caSAdrian Chadd 		bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map,
3015692ad7caSAdrian Chadd 		    BUS_DMASYNC_PREWRITE);
3016692ad7caSAdrian Chadd 	}
3017692ad7caSAdrian Chadd 	bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
3018692ad7caSAdrian Chadd 	    BUS_DMASYNC_PREWRITE);
3019692ad7caSAdrian Chadd 
3020692ad7caSAdrian Chadd 	/* Kick command ring. */
3021692ad7caSAdrian Chadd 	ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
3022692ad7caSAdrian Chadd 	wpi_update_tx_ring(sc, ring);
3023692ad7caSAdrian Chadd 
3024692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
30256607310bSBenjamin Close 
302663f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
302763f57699SAdrian Chadd 
3028ff62db1dSAdrian Chadd 	if (async)
30296607310bSBenjamin Close 		return 0;
30306607310bSBenjamin Close 
303176fdf7ebSAdrian Chadd 	return mtx_sleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
303263f57699SAdrian Chadd 
303363f57699SAdrian Chadd fail:	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
303463f57699SAdrian Chadd 
303563f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
303663f57699SAdrian Chadd 
303763f57699SAdrian Chadd 	return error;
30386607310bSBenjamin Close }
30396607310bSBenjamin Close 
30406607310bSBenjamin Close /*
3041692ad7caSAdrian Chadd  * Configure HW multi-rate retries.
30426607310bSBenjamin Close  */
30436607310bSBenjamin Close static int
30446607310bSBenjamin Close wpi_mrr_setup(struct wpi_softc *sc)
30456607310bSBenjamin Close {
3046b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
3047b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
30486607310bSBenjamin Close 	struct wpi_mrr_setup mrr;
30496607310bSBenjamin Close 	int i, error;
30506607310bSBenjamin Close 
3051692ad7caSAdrian Chadd 	/* CCK rates (not used with 802.11a). */
3052692ad7caSAdrian Chadd 	for (i = WPI_RIDX_CCK1; i <= WPI_RIDX_CCK11; i++) {
30536607310bSBenjamin Close 		mrr.rates[i].flags = 0;
3054692ad7caSAdrian Chadd 		mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3055692ad7caSAdrian Chadd 		/* Fallback to the immediate lower CCK rate (if any.) */
3056692ad7caSAdrian Chadd 		mrr.rates[i].next =
3057692ad7caSAdrian Chadd 		    (i == WPI_RIDX_CCK1) ? WPI_RIDX_CCK1 : i - 1;
3058692ad7caSAdrian Chadd 		/* Try one time at this rate before falling back to "next". */
30596607310bSBenjamin Close 		mrr.rates[i].ntries = 1;
30606607310bSBenjamin Close 	}
3061692ad7caSAdrian Chadd 	/* OFDM rates (not used with 802.11b). */
3062692ad7caSAdrian Chadd 	for (i = WPI_RIDX_OFDM6; i <= WPI_RIDX_OFDM54; i++) {
30636607310bSBenjamin Close 		mrr.rates[i].flags = 0;
3064692ad7caSAdrian Chadd 		mrr.rates[i].plcp = wpi_ridx_to_plcp[i];
3065692ad7caSAdrian Chadd 		/* Fallback to the immediate lower rate (if any.) */
3066692ad7caSAdrian Chadd 		/* We allow fallback from OFDM/6 to CCK/2 in 11b/g mode. */
3067692ad7caSAdrian Chadd 		mrr.rates[i].next = (i == WPI_RIDX_OFDM6) ?
30686607310bSBenjamin Close 		    ((ic->ic_curmode == IEEE80211_MODE_11A) ?
3069692ad7caSAdrian Chadd 			WPI_RIDX_OFDM6 : WPI_RIDX_CCK2) :
30706607310bSBenjamin Close 		    i - 1;
3071692ad7caSAdrian Chadd 		/* Try one time at this rate before falling back to "next". */
30726607310bSBenjamin Close 		mrr.rates[i].ntries = 1;
30736607310bSBenjamin Close 	}
3074692ad7caSAdrian Chadd 	/* Setup MRR for control frames. */
3075692ad7caSAdrian Chadd 	mrr.which = htole32(WPI_MRR_CTL);
30766607310bSBenjamin Close 	error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
30776607310bSBenjamin Close 	if (error != 0) {
30786607310bSBenjamin Close 		device_printf(sc->sc_dev,
30796607310bSBenjamin Close 		    "could not setup MRR for control frames\n");
30806607310bSBenjamin Close 		return error;
30816607310bSBenjamin Close 	}
3082692ad7caSAdrian Chadd 	/* Setup MRR for data frames. */
3083692ad7caSAdrian Chadd 	mrr.which = htole32(WPI_MRR_DATA);
30846607310bSBenjamin Close 	error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
30856607310bSBenjamin Close 	if (error != 0) {
30866607310bSBenjamin Close 		device_printf(sc->sc_dev,
30876607310bSBenjamin Close 		    "could not setup MRR for data frames\n");
30886607310bSBenjamin Close 		return error;
30896607310bSBenjamin Close 	}
30906607310bSBenjamin Close 	return 0;
30916607310bSBenjamin Close }
30926607310bSBenjamin Close 
3093692ad7caSAdrian Chadd static int
3094692ad7caSAdrian Chadd wpi_add_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3095692ad7caSAdrian Chadd {
3096692ad7caSAdrian Chadd 	struct ieee80211com *ic = ni->ni_ic;
3097a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
3098692ad7caSAdrian Chadd 	struct wpi_node_info node;
3099692ad7caSAdrian Chadd 
3100692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3101692ad7caSAdrian Chadd 
3102692ad7caSAdrian Chadd 	if (wn->id == WPI_ID_UNDEFINED)
3103692ad7caSAdrian Chadd 		return EINVAL;
3104692ad7caSAdrian Chadd 
3105692ad7caSAdrian Chadd 	memset(&node, 0, sizeof node);
31063de934a7SAdrian Chadd 	IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3107692ad7caSAdrian Chadd 	node.id = wn->id;
3108692ad7caSAdrian Chadd 	node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3109692ad7caSAdrian Chadd 	    wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3110692ad7caSAdrian Chadd 	node.action = htole32(WPI_ACTION_SET_RATE);
3111692ad7caSAdrian Chadd 	node.antenna = WPI_ANTENNA_BOTH;
3112692ad7caSAdrian Chadd 
3113692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
3114692ad7caSAdrian Chadd }
3115692ad7caSAdrian Chadd 
3116692ad7caSAdrian Chadd /*
3117692ad7caSAdrian Chadd  * Broadcast node is used to send group-addressed and management frames.
3118692ad7caSAdrian Chadd  */
3119692ad7caSAdrian Chadd static int
3120692ad7caSAdrian Chadd wpi_add_broadcast_node(struct wpi_softc *sc, int async)
3121692ad7caSAdrian Chadd {
3122692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
3123692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
3124692ad7caSAdrian Chadd 	struct wpi_node_info node;
3125692ad7caSAdrian Chadd 
3126692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3127692ad7caSAdrian Chadd 
3128692ad7caSAdrian Chadd 	memset(&node, 0, sizeof node);
3129692ad7caSAdrian Chadd 	IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr);
3130692ad7caSAdrian Chadd 	node.id = WPI_ID_BROADCAST;
3131692ad7caSAdrian Chadd 	node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
3132692ad7caSAdrian Chadd 	    wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3133692ad7caSAdrian Chadd 	node.action = htole32(WPI_ACTION_SET_RATE);
3134692ad7caSAdrian Chadd 	node.antenna = WPI_ANTENNA_BOTH;
3135692ad7caSAdrian Chadd 
3136692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, async);
3137692ad7caSAdrian Chadd }
3138692ad7caSAdrian Chadd 
3139692ad7caSAdrian Chadd static int
31400ebca245SAdrian Chadd wpi_add_sta_node(struct wpi_softc *sc, struct ieee80211_node *ni)
31410ebca245SAdrian Chadd {
31420ebca245SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
31430ebca245SAdrian Chadd 	int error;
31440ebca245SAdrian Chadd 
31450ebca245SAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
31460ebca245SAdrian Chadd 
31470ebca245SAdrian Chadd 	wn->id = wpi_add_node_entry_sta(sc);
31480ebca245SAdrian Chadd 
31490ebca245SAdrian Chadd 	if ((error = wpi_add_node(sc, ni)) != 0) {
31500ebca245SAdrian Chadd 		wpi_del_node_entry(sc, wn->id);
31510ebca245SAdrian Chadd 		wn->id = WPI_ID_UNDEFINED;
31520ebca245SAdrian Chadd 		return error;
31530ebca245SAdrian Chadd 	}
31540ebca245SAdrian Chadd 
31550ebca245SAdrian Chadd 	return 0;
31560ebca245SAdrian Chadd }
31570ebca245SAdrian Chadd 
31580ebca245SAdrian Chadd static int
3159692ad7caSAdrian Chadd wpi_add_ibss_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3160692ad7caSAdrian Chadd {
3161a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
3162eca2eb39SAdrian Chadd 	int error;
3163692ad7caSAdrian Chadd 
3164692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3165692ad7caSAdrian Chadd 
3166692ad7caSAdrian Chadd 	if (wn->id != WPI_ID_UNDEFINED)
3167692ad7caSAdrian Chadd 		return EINVAL;
3168692ad7caSAdrian Chadd 
3169eca2eb39SAdrian Chadd 	if ((wn->id = wpi_add_node_entry_adhoc(sc)) == WPI_ID_UNDEFINED) {
3170eca2eb39SAdrian Chadd 		device_printf(sc->sc_dev, "%s: h/w table is full\n", __func__);
3171eca2eb39SAdrian Chadd 		return ENOMEM;
3172eca2eb39SAdrian Chadd 	}
3173692ad7caSAdrian Chadd 
3174eca2eb39SAdrian Chadd 	if ((error = wpi_add_node(sc, ni)) != 0) {
3175eca2eb39SAdrian Chadd 		wpi_del_node_entry(sc, wn->id);
3176eca2eb39SAdrian Chadd 		wn->id = WPI_ID_UNDEFINED;
3177eca2eb39SAdrian Chadd 		return error;
3178eca2eb39SAdrian Chadd 	}
3179692ad7caSAdrian Chadd 
3180eca2eb39SAdrian Chadd 	return 0;
3181692ad7caSAdrian Chadd }
3182692ad7caSAdrian Chadd 
3183692ad7caSAdrian Chadd static void
3184692ad7caSAdrian Chadd wpi_del_node(struct wpi_softc *sc, struct ieee80211_node *ni)
3185692ad7caSAdrian Chadd {
3186a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
3187692ad7caSAdrian Chadd 	struct wpi_cmd_del_node node;
3188692ad7caSAdrian Chadd 	int error;
3189692ad7caSAdrian Chadd 
3190692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3191692ad7caSAdrian Chadd 
3192692ad7caSAdrian Chadd 	if (wn->id == WPI_ID_UNDEFINED) {
3193692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: undefined node id passed\n",
3194692ad7caSAdrian Chadd 		    __func__);
3195692ad7caSAdrian Chadd 		return;
3196692ad7caSAdrian Chadd 	}
3197692ad7caSAdrian Chadd 
3198692ad7caSAdrian Chadd 	memset(&node, 0, sizeof node);
31993de934a7SAdrian Chadd 	IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr);
3200692ad7caSAdrian Chadd 	node.count = 1;
3201692ad7caSAdrian Chadd 
3202692ad7caSAdrian Chadd 	error = wpi_cmd(sc, WPI_CMD_DEL_NODE, &node, sizeof node, 1);
3203692ad7caSAdrian Chadd 	if (error != 0) {
3204692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
3205692ad7caSAdrian Chadd 		    "%s: could not delete node %u, error %d\n", __func__,
3206692ad7caSAdrian Chadd 		    wn->id, error);
3207692ad7caSAdrian Chadd 	}
3208692ad7caSAdrian Chadd }
3209692ad7caSAdrian Chadd 
3210692ad7caSAdrian Chadd static int
3211692ad7caSAdrian Chadd wpi_updateedca(struct ieee80211com *ic)
3212692ad7caSAdrian Chadd {
3213692ad7caSAdrian Chadd #define WPI_EXP2(x)	((1 << (x)) - 1)	/* CWmin = 2^ECWmin - 1 */
3214692ad7caSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
3215692ad7caSAdrian Chadd 	struct wpi_edca_params cmd;
3216692ad7caSAdrian Chadd 	int aci, error;
3217692ad7caSAdrian Chadd 
3218692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3219692ad7caSAdrian Chadd 
3220692ad7caSAdrian Chadd 	memset(&cmd, 0, sizeof cmd);
3221692ad7caSAdrian Chadd 	cmd.flags = htole32(WPI_EDCA_UPDATE);
3222692ad7caSAdrian Chadd 	for (aci = 0; aci < WME_NUM_AC; aci++) {
3223692ad7caSAdrian Chadd 		const struct wmeParams *ac =
3224692ad7caSAdrian Chadd 		    &ic->ic_wme.wme_chanParams.cap_wmeParams[aci];
3225692ad7caSAdrian Chadd 		cmd.ac[aci].aifsn = ac->wmep_aifsn;
3226692ad7caSAdrian Chadd 		cmd.ac[aci].cwmin = htole16(WPI_EXP2(ac->wmep_logcwmin));
3227692ad7caSAdrian Chadd 		cmd.ac[aci].cwmax = htole16(WPI_EXP2(ac->wmep_logcwmax));
3228692ad7caSAdrian Chadd 		cmd.ac[aci].txoplimit =
3229692ad7caSAdrian Chadd 		    htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit));
3230692ad7caSAdrian Chadd 
3231692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_EDCA,
3232692ad7caSAdrian Chadd 		    "setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
3233692ad7caSAdrian Chadd 		    "txoplimit=%d\n", aci, cmd.ac[aci].aifsn,
3234692ad7caSAdrian Chadd 		    cmd.ac[aci].cwmin, cmd.ac[aci].cwmax,
3235692ad7caSAdrian Chadd 		    cmd.ac[aci].txoplimit);
3236692ad7caSAdrian Chadd 	}
3237692ad7caSAdrian Chadd 	error = wpi_cmd(sc, WPI_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1);
3238692ad7caSAdrian Chadd 
3239692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3240692ad7caSAdrian Chadd 
3241692ad7caSAdrian Chadd 	return error;
3242692ad7caSAdrian Chadd #undef WPI_EXP2
3243692ad7caSAdrian Chadd }
3244692ad7caSAdrian Chadd 
3245692ad7caSAdrian Chadd static void
3246692ad7caSAdrian Chadd wpi_set_promisc(struct wpi_softc *sc)
3247692ad7caSAdrian Chadd {
3248692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
3249692ad7caSAdrian Chadd 	uint32_t promisc_filter;
3250692ad7caSAdrian Chadd 
3251692ad7caSAdrian Chadd 	promisc_filter = WPI_FILTER_PROMISC | WPI_FILTER_CTL;
3252692ad7caSAdrian Chadd 
3253692ad7caSAdrian Chadd 	if (ifp->if_flags & IFF_PROMISC)
3254692ad7caSAdrian Chadd 		sc->rxon.filter |= htole32(promisc_filter);
3255692ad7caSAdrian Chadd 	else
3256692ad7caSAdrian Chadd 		sc->rxon.filter &= ~htole32(promisc_filter);
3257692ad7caSAdrian Chadd }
3258692ad7caSAdrian Chadd 
3259692ad7caSAdrian Chadd static void
3260692ad7caSAdrian Chadd wpi_update_promisc(struct ifnet *ifp)
3261692ad7caSAdrian Chadd {
3262692ad7caSAdrian Chadd 	struct wpi_softc *sc = ifp->if_softc;
3263692ad7caSAdrian Chadd 
326410550f61SAdrian Chadd 	WPI_LOCK(sc);
3265692ad7caSAdrian Chadd 	wpi_set_promisc(sc);
3266692ad7caSAdrian Chadd 
3267692ad7caSAdrian Chadd 	if (wpi_send_rxon(sc, 1, 1) != 0) {
3268692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not send RXON\n",
3269692ad7caSAdrian Chadd 		    __func__);
3270692ad7caSAdrian Chadd 	}
3271692ad7caSAdrian Chadd 	WPI_UNLOCK(sc);
3272692ad7caSAdrian Chadd }
3273692ad7caSAdrian Chadd 
3274692ad7caSAdrian Chadd static void
3275692ad7caSAdrian Chadd wpi_update_mcast(struct ifnet *ifp)
3276692ad7caSAdrian Chadd {
3277692ad7caSAdrian Chadd 	/* Ignore */
3278692ad7caSAdrian Chadd }
3279692ad7caSAdrian Chadd 
32806607310bSBenjamin Close static void
32816607310bSBenjamin Close wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
32826607310bSBenjamin Close {
32836607310bSBenjamin Close 	struct wpi_cmd_led led;
32846607310bSBenjamin Close 
3285692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3286692ad7caSAdrian Chadd 
32876607310bSBenjamin Close 	led.which = which;
32886607310bSBenjamin Close 	led.unit = htole32(100000);	/* on/off in unit of 100ms */
32896607310bSBenjamin Close 	led.off = off;
32906607310bSBenjamin Close 	led.on = on;
32916607310bSBenjamin Close 	(void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
32926607310bSBenjamin Close }
32936607310bSBenjamin Close 
3294692ad7caSAdrian Chadd static int
3295692ad7caSAdrian Chadd wpi_set_timing(struct wpi_softc *sc, struct ieee80211_node *ni)
32966607310bSBenjamin Close {
3297692ad7caSAdrian Chadd 	struct wpi_cmd_timing cmd;
32986607310bSBenjamin Close 	uint64_t val, mod;
32996607310bSBenjamin Close 
3300692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
33016607310bSBenjamin Close 
3302692ad7caSAdrian Chadd 	memset(&cmd, 0, sizeof cmd);
3303692ad7caSAdrian Chadd 	memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t));
3304692ad7caSAdrian Chadd 	cmd.bintval = htole16(ni->ni_intval);
3305692ad7caSAdrian Chadd 	cmd.lintval = htole16(10);
33066607310bSBenjamin Close 
3307692ad7caSAdrian Chadd 	/* Compute remaining time until next beacon. */
3308692ad7caSAdrian Chadd 	val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU;
3309692ad7caSAdrian Chadd 	mod = le64toh(cmd.tstamp) % val;
3310692ad7caSAdrian Chadd 	cmd.binitval = htole32((uint32_t)(val - mod));
33116607310bSBenjamin Close 
3312692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n",
3313692ad7caSAdrian Chadd 	    ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod));
33146607310bSBenjamin Close 
3315692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_TIMING, &cmd, sizeof cmd, 1);
33166607310bSBenjamin Close }
33176607310bSBenjamin Close 
33186607310bSBenjamin Close /*
3319692ad7caSAdrian Chadd  * This function is called periodically (every 60 seconds) to adjust output
3320692ad7caSAdrian Chadd  * power to temperature changes.
3321692ad7caSAdrian Chadd  */
3322692ad7caSAdrian Chadd static void
3323692ad7caSAdrian Chadd wpi_power_calibration(struct wpi_softc *sc)
3324692ad7caSAdrian Chadd {
3325692ad7caSAdrian Chadd 	int temp;
3326692ad7caSAdrian Chadd 
3327692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
3328692ad7caSAdrian Chadd 
3329692ad7caSAdrian Chadd 	/* Update sensor data. */
3330692ad7caSAdrian Chadd 	temp = (int)WPI_READ(sc, WPI_UCODE_GP2);
3331692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TEMP, "Temp in calibration is: %d\n", temp);
3332692ad7caSAdrian Chadd 
3333692ad7caSAdrian Chadd 	/* Sanity-check read value. */
3334692ad7caSAdrian Chadd 	if (temp < -260 || temp > 25) {
3335692ad7caSAdrian Chadd 		/* This can't be correct, ignore. */
3336692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TEMP,
3337692ad7caSAdrian Chadd 		    "out-of-range temperature reported: %d\n", temp);
3338692ad7caSAdrian Chadd 		return;
3339692ad7caSAdrian Chadd 	}
3340692ad7caSAdrian Chadd 
3341692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d->%d\n", sc->temp, temp);
3342692ad7caSAdrian Chadd 
3343692ad7caSAdrian Chadd 	/* Adjust Tx power if need be. */
3344692ad7caSAdrian Chadd 	if (abs(temp - sc->temp) <= 6)
3345692ad7caSAdrian Chadd 		return;
3346692ad7caSAdrian Chadd 
3347692ad7caSAdrian Chadd 	sc->temp = temp;
3348692ad7caSAdrian Chadd 
3349692ad7caSAdrian Chadd 	if (wpi_set_txpower(sc, 1) != 0) {
3350692ad7caSAdrian Chadd 		/* just warn, too bad for the automatic calibration... */
3351692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,"could not adjust Tx power\n");
3352692ad7caSAdrian Chadd 	}
3353692ad7caSAdrian Chadd }
3354692ad7caSAdrian Chadd 
3355692ad7caSAdrian Chadd /*
3356692ad7caSAdrian Chadd  * Set TX power for current channel.
33576607310bSBenjamin Close  */
33586607310bSBenjamin Close static int
3359692ad7caSAdrian Chadd wpi_set_txpower(struct wpi_softc *sc, int async)
33606607310bSBenjamin Close {
3361f319a41cSAdrian Chadd 	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3362692ad7caSAdrian Chadd 	struct ieee80211_channel *ch;
3363692ad7caSAdrian Chadd 	struct wpi_power_group *group;
3364692ad7caSAdrian Chadd 	struct wpi_cmd_txpower cmd;
3365692ad7caSAdrian Chadd 	uint8_t chan;
3366692ad7caSAdrian Chadd 	int idx, i;
33676607310bSBenjamin Close 
3368692ad7caSAdrian Chadd 	/* Retrieve current channel from last RXON. */
3369692ad7caSAdrian Chadd 	chan = sc->rxon.chan;
3370692ad7caSAdrian Chadd 	ch = &ic->ic_channels[chan];
33716607310bSBenjamin Close 
3372692ad7caSAdrian Chadd 	/* Find the TX power group to which this channel belongs. */
3373692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_5GHZ(ch)) {
3374692ad7caSAdrian Chadd 		for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3375692ad7caSAdrian Chadd 			if (chan <= group->chan)
3376692ad7caSAdrian Chadd 				break;
3377692ad7caSAdrian Chadd 	} else
3378692ad7caSAdrian Chadd 		group = &sc->groups[0];
3379692ad7caSAdrian Chadd 
3380692ad7caSAdrian Chadd 	memset(&cmd, 0, sizeof cmd);
3381692ad7caSAdrian Chadd 	cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1;
3382692ad7caSAdrian Chadd 	cmd.chan = htole16(chan);
3383692ad7caSAdrian Chadd 
3384692ad7caSAdrian Chadd 	/* Set TX power for all OFDM and CCK rates. */
3385692ad7caSAdrian Chadd 	for (i = 0; i <= WPI_RIDX_MAX ; i++) {
3386692ad7caSAdrian Chadd 		/* Retrieve TX power for this channel/rate. */
3387692ad7caSAdrian Chadd 		idx = wpi_get_power_index(sc, group, ch, i);
3388692ad7caSAdrian Chadd 
3389692ad7caSAdrian Chadd 		cmd.rates[i].plcp = wpi_ridx_to_plcp[i];
3390692ad7caSAdrian Chadd 
3391692ad7caSAdrian Chadd 		if (IEEE80211_IS_CHAN_5GHZ(ch)) {
3392692ad7caSAdrian Chadd 			cmd.rates[i].rf_gain = wpi_rf_gain_5ghz[idx];
3393692ad7caSAdrian Chadd 			cmd.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx];
3394692ad7caSAdrian Chadd 		} else {
3395692ad7caSAdrian Chadd 			cmd.rates[i].rf_gain = wpi_rf_gain_2ghz[idx];
3396692ad7caSAdrian Chadd 			cmd.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx];
3397692ad7caSAdrian Chadd 		}
3398692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TEMP,
3399692ad7caSAdrian Chadd 		    "chan %d/ridx %d: power index %d\n", chan, i, idx);
3400692ad7caSAdrian Chadd 	}
3401692ad7caSAdrian Chadd 
3402692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_TXPOWER, &cmd, sizeof cmd, async);
3403692ad7caSAdrian Chadd }
3404692ad7caSAdrian Chadd 
3405692ad7caSAdrian Chadd /*
3406692ad7caSAdrian Chadd  * Determine Tx power index for a given channel/rate combination.
3407692ad7caSAdrian Chadd  * This takes into account the regulatory information from EEPROM and the
3408692ad7caSAdrian Chadd  * current temperature.
3409692ad7caSAdrian Chadd  */
3410692ad7caSAdrian Chadd static int
3411692ad7caSAdrian Chadd wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3412692ad7caSAdrian Chadd     struct ieee80211_channel *c, int ridx)
3413692ad7caSAdrian Chadd {
3414692ad7caSAdrian Chadd /* Fixed-point arithmetic division using a n-bit fractional part. */
3415692ad7caSAdrian Chadd #define fdivround(a, b, n)	\
3416692ad7caSAdrian Chadd 	((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3417692ad7caSAdrian Chadd 
3418692ad7caSAdrian Chadd /* Linear interpolation. */
3419692ad7caSAdrian Chadd #define interpolate(x, x1, y1, x2, y2, n)	\
3420692ad7caSAdrian Chadd 	((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3421692ad7caSAdrian Chadd 
3422f319a41cSAdrian Chadd 	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3423692ad7caSAdrian Chadd 	struct wpi_power_sample *sample;
3424692ad7caSAdrian Chadd 	int pwr, idx;
3425692ad7caSAdrian Chadd 	u_int chan;
3426692ad7caSAdrian Chadd 
3427692ad7caSAdrian Chadd 	/* Get channel number. */
3428692ad7caSAdrian Chadd 	chan = ieee80211_chan2ieee(ic, c);
3429692ad7caSAdrian Chadd 
3430692ad7caSAdrian Chadd 	/* Default TX power is group maximum TX power minus 3dB. */
3431692ad7caSAdrian Chadd 	pwr = group->maxpwr / 2;
3432692ad7caSAdrian Chadd 
3433692ad7caSAdrian Chadd 	/* Decrease TX power for highest OFDM rates to reduce distortion. */
3434692ad7caSAdrian Chadd 	switch (ridx) {
3435692ad7caSAdrian Chadd 	case WPI_RIDX_OFDM36:
3436692ad7caSAdrian Chadd 		pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 :  5;
3437692ad7caSAdrian Chadd 		break;
3438692ad7caSAdrian Chadd 	case WPI_RIDX_OFDM48:
3439692ad7caSAdrian Chadd 		pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3440692ad7caSAdrian Chadd 		break;
3441692ad7caSAdrian Chadd 	case WPI_RIDX_OFDM54:
3442692ad7caSAdrian Chadd 		pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3443692ad7caSAdrian Chadd 		break;
3444692ad7caSAdrian Chadd 	}
3445692ad7caSAdrian Chadd 
3446692ad7caSAdrian Chadd 	/* Never exceed the channel maximum allowed TX power. */
3447692ad7caSAdrian Chadd 	pwr = min(pwr, sc->maxpwr[chan]);
3448692ad7caSAdrian Chadd 
3449692ad7caSAdrian Chadd 	/* Retrieve TX power index into gain tables from samples. */
3450692ad7caSAdrian Chadd 	for (sample = group->samples; sample < &group->samples[3]; sample++)
3451692ad7caSAdrian Chadd 		if (pwr > sample[1].power)
3452692ad7caSAdrian Chadd 			break;
3453692ad7caSAdrian Chadd 	/* Fixed-point linear interpolation using a 19-bit fractional part. */
3454692ad7caSAdrian Chadd 	idx = interpolate(pwr, sample[0].power, sample[0].index,
3455692ad7caSAdrian Chadd 	    sample[1].power, sample[1].index, 19);
3456692ad7caSAdrian Chadd 
3457692ad7caSAdrian Chadd 	/*-
3458692ad7caSAdrian Chadd 	 * Adjust power index based on current temperature:
3459692ad7caSAdrian Chadd 	 * - if cooler than factory-calibrated: decrease output power
3460692ad7caSAdrian Chadd 	 * - if warmer than factory-calibrated: increase output power
3461692ad7caSAdrian Chadd 	 */
3462692ad7caSAdrian Chadd 	idx -= (sc->temp - group->temp) * 11 / 100;
3463692ad7caSAdrian Chadd 
3464692ad7caSAdrian Chadd 	/* Decrease TX power for CCK rates (-5dB). */
3465692ad7caSAdrian Chadd 	if (ridx >= WPI_RIDX_CCK1)
3466692ad7caSAdrian Chadd 		idx += 10;
3467692ad7caSAdrian Chadd 
3468692ad7caSAdrian Chadd 	/* Make sure idx stays in a valid range. */
3469692ad7caSAdrian Chadd 	if (idx < 0)
3470692ad7caSAdrian Chadd 		return 0;
3471692ad7caSAdrian Chadd 	if (idx > WPI_MAX_PWR_INDEX)
3472692ad7caSAdrian Chadd 		return WPI_MAX_PWR_INDEX;
3473692ad7caSAdrian Chadd 	return idx;
3474692ad7caSAdrian Chadd 
3475692ad7caSAdrian Chadd #undef interpolate
3476692ad7caSAdrian Chadd #undef fdivround
3477692ad7caSAdrian Chadd }
3478692ad7caSAdrian Chadd 
3479692ad7caSAdrian Chadd /*
3480692ad7caSAdrian Chadd  * Set STA mode power saving level (between 0 and 5).
3481692ad7caSAdrian Chadd  * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving.
3482692ad7caSAdrian Chadd  */
3483692ad7caSAdrian Chadd static int
3484692ad7caSAdrian Chadd wpi_set_pslevel(struct wpi_softc *sc, uint8_t dtim, int level, int async)
3485692ad7caSAdrian Chadd {
3486692ad7caSAdrian Chadd 	struct wpi_pmgt_cmd cmd;
3487692ad7caSAdrian Chadd 	const struct wpi_pmgt *pmgt;
3488692ad7caSAdrian Chadd 	uint32_t max, skip_dtim;
3489692ad7caSAdrian Chadd 	uint32_t reg;
3490692ad7caSAdrian Chadd 	int i;
3491692ad7caSAdrian Chadd 
3492692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_PWRSAVE,
3493692ad7caSAdrian Chadd 	    "%s: dtim=%d, level=%d, async=%d\n",
3494692ad7caSAdrian Chadd 	    __func__, dtim, level, async);
3495692ad7caSAdrian Chadd 
3496692ad7caSAdrian Chadd 	/* Select which PS parameters to use. */
3497692ad7caSAdrian Chadd 	if (dtim <= 10)
3498692ad7caSAdrian Chadd 		pmgt = &wpi_pmgt[0][level];
3499692ad7caSAdrian Chadd 	else
3500692ad7caSAdrian Chadd 		pmgt = &wpi_pmgt[1][level];
3501692ad7caSAdrian Chadd 
3502692ad7caSAdrian Chadd 	memset(&cmd, 0, sizeof cmd);
3503692ad7caSAdrian Chadd 	if (level != 0)	/* not CAM */
3504692ad7caSAdrian Chadd 		cmd.flags |= htole16(WPI_PS_ALLOW_SLEEP);
3505692ad7caSAdrian Chadd 	/* Retrieve PCIe Active State Power Management (ASPM). */
3506692ad7caSAdrian Chadd 	reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
3507692ad7caSAdrian Chadd 	if (!(reg & 0x1))	/* L0s Entry disabled. */
3508692ad7caSAdrian Chadd 		cmd.flags |= htole16(WPI_PS_PCI_PMGT);
3509692ad7caSAdrian Chadd 
3510692ad7caSAdrian Chadd 	cmd.rxtimeout = htole32(pmgt->rxtimeout * IEEE80211_DUR_TU);
3511692ad7caSAdrian Chadd 	cmd.txtimeout = htole32(pmgt->txtimeout * IEEE80211_DUR_TU);
3512692ad7caSAdrian Chadd 
3513692ad7caSAdrian Chadd 	if (dtim == 0) {
3514692ad7caSAdrian Chadd 		dtim = 1;
3515692ad7caSAdrian Chadd 		skip_dtim = 0;
3516692ad7caSAdrian Chadd 	} else
3517692ad7caSAdrian Chadd 		skip_dtim = pmgt->skip_dtim;
3518692ad7caSAdrian Chadd 
3519692ad7caSAdrian Chadd 	if (skip_dtim != 0) {
3520692ad7caSAdrian Chadd 		cmd.flags |= htole16(WPI_PS_SLEEP_OVER_DTIM);
3521692ad7caSAdrian Chadd 		max = pmgt->intval[4];
3522692ad7caSAdrian Chadd 		if (max == (uint32_t)-1)
3523692ad7caSAdrian Chadd 			max = dtim * (skip_dtim + 1);
3524692ad7caSAdrian Chadd 		else if (max > dtim)
3525692ad7caSAdrian Chadd 			max = (max / dtim) * dtim;
3526692ad7caSAdrian Chadd 	} else
3527692ad7caSAdrian Chadd 		max = dtim;
3528692ad7caSAdrian Chadd 
3529692ad7caSAdrian Chadd 	for (i = 0; i < 5; i++)
3530692ad7caSAdrian Chadd 		cmd.intval[i] = htole32(MIN(max, pmgt->intval[i]));
3531692ad7caSAdrian Chadd 
3532692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async);
3533692ad7caSAdrian Chadd }
3534692ad7caSAdrian Chadd 
3535692ad7caSAdrian Chadd static int
3536692ad7caSAdrian Chadd wpi_send_btcoex(struct wpi_softc *sc)
3537692ad7caSAdrian Chadd {
3538692ad7caSAdrian Chadd 	struct wpi_bluetooth cmd;
3539692ad7caSAdrian Chadd 
3540692ad7caSAdrian Chadd 	memset(&cmd, 0, sizeof cmd);
3541692ad7caSAdrian Chadd 	cmd.flags = WPI_BT_COEX_MODE_4WIRE;
3542692ad7caSAdrian Chadd 	cmd.lead_time = WPI_BT_LEAD_TIME_DEF;
3543692ad7caSAdrian Chadd 	cmd.max_kill = WPI_BT_MAX_KILL_DEF;
3544692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_RESET, "%s: configuring bluetooth coexistence\n",
3545692ad7caSAdrian Chadd 	    __func__);
3546692ad7caSAdrian Chadd 	return wpi_cmd(sc, WPI_CMD_BT_COEX, &cmd, sizeof(cmd), 0);
3547692ad7caSAdrian Chadd }
3548692ad7caSAdrian Chadd 
3549692ad7caSAdrian Chadd static int
3550692ad7caSAdrian Chadd wpi_send_rxon(struct wpi_softc *sc, int assoc, int async)
3551692ad7caSAdrian Chadd {
3552692ad7caSAdrian Chadd 	int error;
3553692ad7caSAdrian Chadd 
3554692ad7caSAdrian Chadd 	if (assoc && (sc->rxon.filter & htole32(WPI_FILTER_BSS))) {
3555692ad7caSAdrian Chadd 		struct wpi_assoc rxon_assoc;
3556692ad7caSAdrian Chadd 
3557692ad7caSAdrian Chadd 		rxon_assoc.flags = sc->rxon.flags;
3558692ad7caSAdrian Chadd 		rxon_assoc.filter = sc->rxon.filter;
3559692ad7caSAdrian Chadd 		rxon_assoc.ofdm_mask = sc->rxon.ofdm_mask;
3560692ad7caSAdrian Chadd 		rxon_assoc.cck_mask = sc->rxon.cck_mask;
3561692ad7caSAdrian Chadd 		rxon_assoc.reserved = 0;
3562692ad7caSAdrian Chadd 
3563692ad7caSAdrian Chadd 		error = wpi_cmd(sc, WPI_CMD_RXON_ASSOC, &rxon_assoc,
3564692ad7caSAdrian Chadd 		    sizeof (struct wpi_assoc), async);
3565692ad7caSAdrian Chadd 	} else {
35667964dd56SAdrian Chadd 		if (async)
35677964dd56SAdrian Chadd 			WPI_NT_LOCK(sc);
35687964dd56SAdrian Chadd 
3569692ad7caSAdrian Chadd 		error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon,
3570692ad7caSAdrian Chadd 		    sizeof (struct wpi_rxon), async);
3571eca2eb39SAdrian Chadd 
3572eca2eb39SAdrian Chadd 		wpi_clear_node_table(sc);
35737964dd56SAdrian Chadd 
35747964dd56SAdrian Chadd 		if (async)
35757964dd56SAdrian Chadd 			WPI_NT_UNLOCK(sc);
3576692ad7caSAdrian Chadd 	}
3577692ad7caSAdrian Chadd 	if (error != 0) {
3578692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "RXON command failed, error %d\n",
3579692ad7caSAdrian Chadd 		    error);
3580692ad7caSAdrian Chadd 		return error;
3581692ad7caSAdrian Chadd 	}
3582692ad7caSAdrian Chadd 
3583692ad7caSAdrian Chadd 	/* Configuration has changed, set Tx power accordingly. */
3584692ad7caSAdrian Chadd 	if ((error = wpi_set_txpower(sc, async)) != 0) {
35856607310bSBenjamin Close 		device_printf(sc->sc_dev,
3586692ad7caSAdrian Chadd 		    "%s: could not set TX power, error %d\n", __func__, error);
35876607310bSBenjamin Close 		return error;
35886607310bSBenjamin Close 	}
35896607310bSBenjamin Close 
3590692ad7caSAdrian Chadd 	if (!(sc->rxon.filter & htole32(WPI_FILTER_BSS))) {
3591692ad7caSAdrian Chadd 		/* Add broadcast node. */
3592692ad7caSAdrian Chadd 		error = wpi_add_broadcast_node(sc, async);
3593692ad7caSAdrian Chadd 		if (error != 0) {
3594692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
3595692ad7caSAdrian Chadd 			    "could not add broadcast node, error %d\n", error);
3596692ad7caSAdrian Chadd 			return error;
3597692ad7caSAdrian Chadd 		}
3598692ad7caSAdrian Chadd 	}
35996607310bSBenjamin Close 
3600692ad7caSAdrian Chadd 	return 0;
36016607310bSBenjamin Close }
36026607310bSBenjamin Close 
36036607310bSBenjamin Close /**
36046607310bSBenjamin Close  * Configure the card to listen to a particular channel, this transisions the
36056607310bSBenjamin Close  * card in to being able to receive frames from remote devices.
36066607310bSBenjamin Close  */
36076607310bSBenjamin Close static int
36086607310bSBenjamin Close wpi_config(struct wpi_softc *sc)
36096607310bSBenjamin Close {
3610b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
3611b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
36123de934a7SAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3613692ad7caSAdrian Chadd 	uint32_t flags;
36146607310bSBenjamin Close 	int error;
36156607310bSBenjamin Close 
3616692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3617692ad7caSAdrian Chadd 
3618692ad7caSAdrian Chadd 	/* Set power saving level to CAM during initialization. */
3619692ad7caSAdrian Chadd 	if ((error = wpi_set_pslevel(sc, 0, 0, 0)) != 0) {
3620692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
3621692ad7caSAdrian Chadd 		    "%s: could not set power saving level\n", __func__);
36226607310bSBenjamin Close 		return error;
36236607310bSBenjamin Close 	}
36246607310bSBenjamin Close 
3625692ad7caSAdrian Chadd 	/* Configure bluetooth coexistence. */
3626692ad7caSAdrian Chadd 	if ((error = wpi_send_btcoex(sc)) != 0) {
36276607310bSBenjamin Close 		device_printf(sc->sc_dev,
36286607310bSBenjamin Close 		    "could not configure bluetooth coexistence\n");
36296607310bSBenjamin Close 		return error;
36306607310bSBenjamin Close 	}
36316607310bSBenjamin Close 
3632692ad7caSAdrian Chadd 	/* Configure adapter. */
3633692ad7caSAdrian Chadd 	memset(&sc->rxon, 0, sizeof (struct wpi_rxon));
36343de934a7SAdrian Chadd 	IEEE80211_ADDR_COPY(sc->rxon.myaddr, vap->iv_myaddr);
3635692ad7caSAdrian Chadd 
3636692ad7caSAdrian Chadd 	/* Set default channel. */
3637692ad7caSAdrian Chadd 	sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_curchan);
3638692ad7caSAdrian Chadd 	sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
3639692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
3640692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
3641692ad7caSAdrian Chadd 
3642fae61c69SAdrian Chadd 	sc->rxon.filter = WPI_FILTER_MULTICAST;
36436607310bSBenjamin Close 	switch (ic->ic_opmode) {
36446607310bSBenjamin Close 	case IEEE80211_M_STA:
3645692ad7caSAdrian Chadd 		sc->rxon.mode = WPI_MODE_STA;
36466607310bSBenjamin Close 		break;
36476607310bSBenjamin Close 	case IEEE80211_M_IBSS:
3648692ad7caSAdrian Chadd 		sc->rxon.mode = WPI_MODE_IBSS;
3649fae61c69SAdrian Chadd 		sc->rxon.filter |= WPI_FILTER_BEACON;
36506607310bSBenjamin Close 		break;
3651692ad7caSAdrian Chadd 	/* XXX workaround for passive channels selection */
3652692ad7caSAdrian Chadd 	case IEEE80211_M_AHDEMO:
36536607310bSBenjamin Close 	case IEEE80211_M_HOSTAP:
3654692ad7caSAdrian Chadd 		sc->rxon.mode = WPI_MODE_HOSTAP;
36556607310bSBenjamin Close 		break;
36566607310bSBenjamin Close 	case IEEE80211_M_MONITOR:
3657692ad7caSAdrian Chadd 		sc->rxon.mode = WPI_MODE_MONITOR;
36586607310bSBenjamin Close 		break;
3659820e6a1fSRui Paulo 	default:
36607167f5fcSAdrian Chadd 		device_printf(sc->sc_dev, "unknown opmode %d\n",
36617167f5fcSAdrian Chadd 		    ic->ic_opmode);
3662820e6a1fSRui Paulo 		return EINVAL;
36636607310bSBenjamin Close 	}
3664fae61c69SAdrian Chadd 	sc->rxon.filter = htole32(sc->rxon.filter);
3665692ad7caSAdrian Chadd 	wpi_set_promisc(sc);
3666692ad7caSAdrian Chadd 	sc->rxon.cck_mask  = 0x0f;	/* not yet negotiated */
3667692ad7caSAdrian Chadd 	sc->rxon.ofdm_mask = 0xff;	/* not yet negotiated */
3668692ad7caSAdrian Chadd 
3669692ad7caSAdrian Chadd 	if ((error = wpi_send_rxon(sc, 0, 0)) != 0) {
3670692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not send RXON\n",
3671692ad7caSAdrian Chadd 		    __func__);
3672692ad7caSAdrian Chadd 		return error;
3673692ad7caSAdrian Chadd 	}
3674692ad7caSAdrian Chadd 
3675692ad7caSAdrian Chadd 	/* Setup rate scalling. */
3676692ad7caSAdrian Chadd 	if ((error = wpi_mrr_setup(sc)) != 0) {
3677692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "could not setup MRR, error %d\n",
3678692ad7caSAdrian Chadd 		    error);
3679692ad7caSAdrian Chadd 		return error;
3680692ad7caSAdrian Chadd 	}
3681692ad7caSAdrian Chadd 
3682692ad7caSAdrian Chadd 	/* Disable beacon notifications (unused). */
3683692ad7caSAdrian Chadd 	flags = WPI_STATISTICS_BEACON_DISABLE;
3684692ad7caSAdrian Chadd 	error = wpi_cmd(sc, WPI_CMD_GET_STATISTICS, &flags, sizeof flags, 1);
36856607310bSBenjamin Close 	if (error != 0) {
3686692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
3687692ad7caSAdrian Chadd 		    "could not disable beacon statistics, error %d\n", error);
36886607310bSBenjamin Close 		return error;
36896607310bSBenjamin Close 	}
36906607310bSBenjamin Close 
3691692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3692692ad7caSAdrian Chadd 
3693692ad7caSAdrian Chadd 	return 0;
3694692ad7caSAdrian Chadd }
3695692ad7caSAdrian Chadd 
3696692ad7caSAdrian Chadd static uint16_t
3697692ad7caSAdrian Chadd wpi_get_active_dwell_time(struct wpi_softc *sc,
3698692ad7caSAdrian Chadd     struct ieee80211_channel *c, uint8_t n_probes)
3699692ad7caSAdrian Chadd {
3700692ad7caSAdrian Chadd 	/* No channel? Default to 2GHz settings. */
3701692ad7caSAdrian Chadd 	if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) {
3702692ad7caSAdrian Chadd 		return (WPI_ACTIVE_DWELL_TIME_2GHZ +
3703692ad7caSAdrian Chadd 		WPI_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1));
3704692ad7caSAdrian Chadd 	}
3705692ad7caSAdrian Chadd 
3706692ad7caSAdrian Chadd 	/* 5GHz dwell time. */
3707692ad7caSAdrian Chadd 	return (WPI_ACTIVE_DWELL_TIME_5GHZ +
3708692ad7caSAdrian Chadd 	    WPI_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1));
3709692ad7caSAdrian Chadd }
3710692ad7caSAdrian Chadd 
3711692ad7caSAdrian Chadd /*
3712692ad7caSAdrian Chadd  * Limit the total dwell time to 85% of the beacon interval.
3713692ad7caSAdrian Chadd  *
3714692ad7caSAdrian Chadd  * Returns the dwell time in milliseconds.
3715692ad7caSAdrian Chadd  */
3716692ad7caSAdrian Chadd static uint16_t
3717692ad7caSAdrian Chadd wpi_limit_dwell(struct wpi_softc *sc, uint16_t dwell_time)
3718692ad7caSAdrian Chadd {
3719692ad7caSAdrian Chadd 	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
3720692ad7caSAdrian Chadd 	struct ieee80211vap *vap = NULL;
3721692ad7caSAdrian Chadd 	int bintval = 0;
3722692ad7caSAdrian Chadd 
3723692ad7caSAdrian Chadd 	/* bintval is in TU (1.024mS) */
3724692ad7caSAdrian Chadd 	if (! TAILQ_EMPTY(&ic->ic_vaps)) {
3725692ad7caSAdrian Chadd 		vap = TAILQ_FIRST(&ic->ic_vaps);
3726692ad7caSAdrian Chadd 		bintval = vap->iv_bss->ni_intval;
3727692ad7caSAdrian Chadd 	}
3728692ad7caSAdrian Chadd 
3729692ad7caSAdrian Chadd 	/*
3730692ad7caSAdrian Chadd 	 * If it's non-zero, we should calculate the minimum of
3731692ad7caSAdrian Chadd 	 * it and the DWELL_BASE.
3732692ad7caSAdrian Chadd 	 *
3733692ad7caSAdrian Chadd 	 * XXX Yes, the math should take into account that bintval
3734692ad7caSAdrian Chadd 	 * is 1.024mS, not 1mS..
3735692ad7caSAdrian Chadd 	 */
3736692ad7caSAdrian Chadd 	if (bintval > 0) {
3737692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_SCAN, "%s: bintval=%d\n", __func__,
3738692ad7caSAdrian Chadd 		    bintval);
3739692ad7caSAdrian Chadd 		return (MIN(WPI_PASSIVE_DWELL_BASE, ((bintval * 85) / 100)));
3740692ad7caSAdrian Chadd 	}
3741692ad7caSAdrian Chadd 
3742692ad7caSAdrian Chadd 	/* No association context? Default. */
3743692ad7caSAdrian Chadd 	return (WPI_PASSIVE_DWELL_BASE);
3744692ad7caSAdrian Chadd }
3745692ad7caSAdrian Chadd 
3746692ad7caSAdrian Chadd static uint16_t
3747692ad7caSAdrian Chadd wpi_get_passive_dwell_time(struct wpi_softc *sc, struct ieee80211_channel *c)
3748692ad7caSAdrian Chadd {
3749692ad7caSAdrian Chadd 	uint16_t passive;
3750692ad7caSAdrian Chadd 
3751692ad7caSAdrian Chadd 	if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c))
3752692ad7caSAdrian Chadd 		passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_2GHZ;
3753692ad7caSAdrian Chadd 	else
3754692ad7caSAdrian Chadd 		passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_5GHZ;
3755692ad7caSAdrian Chadd 
3756692ad7caSAdrian Chadd 	/* Clamp to the beacon interval if we're associated. */
3757692ad7caSAdrian Chadd 	return (wpi_limit_dwell(sc, passive));
3758692ad7caSAdrian Chadd }
3759692ad7caSAdrian Chadd 
3760692ad7caSAdrian Chadd /*
3761692ad7caSAdrian Chadd  * Send a scan request to the firmware.
3762692ad7caSAdrian Chadd  */
3763692ad7caSAdrian Chadd static int
3764692ad7caSAdrian Chadd wpi_scan(struct wpi_softc *sc, struct ieee80211_channel *c)
3765692ad7caSAdrian Chadd {
3766692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
3767692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
3768692ad7caSAdrian Chadd 	struct ieee80211_scan_state *ss = ic->ic_scan;
37693de934a7SAdrian Chadd 	struct ieee80211vap *vap = ss->ss_vap;
3770692ad7caSAdrian Chadd 	struct wpi_scan_hdr *hdr;
3771692ad7caSAdrian Chadd 	struct wpi_cmd_data *tx;
3772692ad7caSAdrian Chadd 	struct wpi_scan_essid *essids;
3773692ad7caSAdrian Chadd 	struct wpi_scan_chan *chan;
3774692ad7caSAdrian Chadd 	struct ieee80211_frame *wh;
3775692ad7caSAdrian Chadd 	struct ieee80211_rateset *rs;
3776692ad7caSAdrian Chadd 	uint16_t dwell_active, dwell_passive;
3777692ad7caSAdrian Chadd 	uint8_t *buf, *frm;
3778692ad7caSAdrian Chadd 	int buflen, error, i, nssid;
3779692ad7caSAdrian Chadd 
3780692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3781692ad7caSAdrian Chadd 
3782692ad7caSAdrian Chadd 	/*
3783692ad7caSAdrian Chadd 	 * We are absolutely not allowed to send a scan command when another
3784692ad7caSAdrian Chadd 	 * scan command is pending.
3785692ad7caSAdrian Chadd 	 */
3786692ad7caSAdrian Chadd 	if (sc->sc_scan_timer) {
3787692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: called whilst scanning!\n",
3788692ad7caSAdrian Chadd 		    __func__);
378996dadeb0SAdrian Chadd 
379096dadeb0SAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
379196dadeb0SAdrian Chadd 
3792692ad7caSAdrian Chadd 		return (EAGAIN);
3793692ad7caSAdrian Chadd 	}
3794692ad7caSAdrian Chadd 
3795692ad7caSAdrian Chadd 	buf = malloc(WPI_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO);
3796692ad7caSAdrian Chadd 	if (buf == NULL) {
3797692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
3798692ad7caSAdrian Chadd 		    "%s: could not allocate buffer for scan command\n",
3799692ad7caSAdrian Chadd 		    __func__);
380096dadeb0SAdrian Chadd 		error = ENOMEM;
380196dadeb0SAdrian Chadd 		goto fail;
3802692ad7caSAdrian Chadd 	}
3803692ad7caSAdrian Chadd 	hdr = (struct wpi_scan_hdr *)buf;
3804692ad7caSAdrian Chadd 
3805692ad7caSAdrian Chadd 	/*
3806692ad7caSAdrian Chadd 	 * Move to the next channel if no packets are received within 10 msecs
3807692ad7caSAdrian Chadd 	 * after sending the probe request.
3808692ad7caSAdrian Chadd 	 */
3809692ad7caSAdrian Chadd 	hdr->quiet_time = htole16(10);		/* timeout in milliseconds */
3810692ad7caSAdrian Chadd 	hdr->quiet_threshold = htole16(1);	/* min # of packets */
3811692ad7caSAdrian Chadd 	/*
3812692ad7caSAdrian Chadd 	 * Max needs to be greater than active and passive and quiet!
3813692ad7caSAdrian Chadd 	 * It's also in microseconds!
3814692ad7caSAdrian Chadd 	 */
3815692ad7caSAdrian Chadd 	hdr->max_svc = htole32(250 * IEEE80211_DUR_TU);
3816692ad7caSAdrian Chadd 	hdr->pause_svc = htole32((4 << 24) |
3817692ad7caSAdrian Chadd 	    (100 * IEEE80211_DUR_TU));	/* Hardcode for now */
3818692ad7caSAdrian Chadd 	hdr->filter = htole32(WPI_FILTER_MULTICAST | WPI_FILTER_BEACON);
3819692ad7caSAdrian Chadd 
3820692ad7caSAdrian Chadd 	tx = (struct wpi_cmd_data *)(hdr + 1);
3821692ad7caSAdrian Chadd 	tx->flags = htole32(WPI_TX_AUTO_SEQ);
3822692ad7caSAdrian Chadd 	tx->id = WPI_ID_BROADCAST;
3823692ad7caSAdrian Chadd 	tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
3824692ad7caSAdrian Chadd 
3825692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_5GHZ(c)) {
3826692ad7caSAdrian Chadd 		/* Send probe requests at 6Mbps. */
3827692ad7caSAdrian Chadd 		tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_OFDM6];
3828692ad7caSAdrian Chadd 		rs = &ic->ic_sup_rates[IEEE80211_MODE_11A];
3829692ad7caSAdrian Chadd 	} else {
3830692ad7caSAdrian Chadd 		hdr->flags = htole32(WPI_RXON_24GHZ | WPI_RXON_AUTO);
3831692ad7caSAdrian Chadd 		/* Send probe requests at 1Mbps. */
3832692ad7caSAdrian Chadd 		tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_CCK1];
3833692ad7caSAdrian Chadd 		rs = &ic->ic_sup_rates[IEEE80211_MODE_11G];
3834692ad7caSAdrian Chadd 	}
3835692ad7caSAdrian Chadd 
3836692ad7caSAdrian Chadd 	essids = (struct wpi_scan_essid *)(tx + 1);
3837692ad7caSAdrian Chadd 	nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
3838692ad7caSAdrian Chadd 	for (i = 0; i < nssid; i++) {
3839692ad7caSAdrian Chadd 		essids[i].id = IEEE80211_ELEMID_SSID;
3840692ad7caSAdrian Chadd 		essids[i].len = MIN(ss->ss_ssid[i].len, IEEE80211_NWID_LEN);
3841692ad7caSAdrian Chadd 		memcpy(essids[i].data, ss->ss_ssid[i].ssid, essids[i].len);
3842692ad7caSAdrian Chadd #ifdef WPI_DEBUG
3843692ad7caSAdrian Chadd 		if (sc->sc_debug & WPI_DEBUG_SCAN) {
3844692ad7caSAdrian Chadd 			printf("Scanning Essid: ");
3845692ad7caSAdrian Chadd 			ieee80211_print_essid(essids[i].data, essids[i].len);
3846692ad7caSAdrian Chadd 			printf("\n");
3847692ad7caSAdrian Chadd 		}
3848692ad7caSAdrian Chadd #endif
3849692ad7caSAdrian Chadd 	}
3850692ad7caSAdrian Chadd 
3851692ad7caSAdrian Chadd 	/*
3852692ad7caSAdrian Chadd 	 * Build a probe request frame.  Most of the following code is a
3853692ad7caSAdrian Chadd 	 * copy & paste of what is done in net80211.
3854692ad7caSAdrian Chadd 	 */
3855692ad7caSAdrian Chadd 	wh = (struct ieee80211_frame *)(essids + WPI_SCAN_MAX_ESSIDS);
3856692ad7caSAdrian Chadd 	wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
3857692ad7caSAdrian Chadd 		IEEE80211_FC0_SUBTYPE_PROBE_REQ;
3858692ad7caSAdrian Chadd 	wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
3859692ad7caSAdrian Chadd 	IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
38603de934a7SAdrian Chadd 	IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
3861692ad7caSAdrian Chadd 	IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
3862692ad7caSAdrian Chadd 	*(uint16_t *)&wh->i_dur[0] = 0;	/* filled by h/w */
3863692ad7caSAdrian Chadd 	*(uint16_t *)&wh->i_seq[0] = 0;	/* filled by h/w */
3864692ad7caSAdrian Chadd 
3865692ad7caSAdrian Chadd 	frm = (uint8_t *)(wh + 1);
3866692ad7caSAdrian Chadd 	frm = ieee80211_add_ssid(frm, NULL, 0);
3867692ad7caSAdrian Chadd 	frm = ieee80211_add_rates(frm, rs);
3868692ad7caSAdrian Chadd 	if (rs->rs_nrates > IEEE80211_RATE_SIZE)
3869692ad7caSAdrian Chadd 		frm = ieee80211_add_xrates(frm, rs);
3870692ad7caSAdrian Chadd 
3871692ad7caSAdrian Chadd 	/* Set length of probe request. */
3872692ad7caSAdrian Chadd 	tx->len = htole16(frm - (uint8_t *)wh);
3873692ad7caSAdrian Chadd 
3874692ad7caSAdrian Chadd 	/*
3875692ad7caSAdrian Chadd 	 * Construct information about the channel that we
3876692ad7caSAdrian Chadd 	 * want to scan. The firmware expects this to be directly
3877692ad7caSAdrian Chadd 	 * after the scan probe request
3878692ad7caSAdrian Chadd 	 */
3879692ad7caSAdrian Chadd 	chan = (struct wpi_scan_chan *)frm;
3880692ad7caSAdrian Chadd 	chan->chan = htole16(ieee80211_chan2ieee(ic, c));
3881692ad7caSAdrian Chadd 	chan->flags = 0;
3882692ad7caSAdrian Chadd 	if (nssid) {
3883692ad7caSAdrian Chadd 		hdr->crc_threshold = WPI_SCAN_CRC_TH_DEFAULT;
3884692ad7caSAdrian Chadd 		chan->flags |= WPI_CHAN_NPBREQS(nssid);
3885692ad7caSAdrian Chadd 	} else
3886692ad7caSAdrian Chadd 		hdr->crc_threshold = WPI_SCAN_CRC_TH_NEVER;
3887692ad7caSAdrian Chadd 
3888fae61c69SAdrian Chadd 	if (!IEEE80211_IS_CHAN_PASSIVE(c))
3889692ad7caSAdrian Chadd 		chan->flags |= WPI_CHAN_ACTIVE;
3890692ad7caSAdrian Chadd 
3891692ad7caSAdrian Chadd 	/*
3892692ad7caSAdrian Chadd 	 * Calculate the active/passive dwell times.
3893692ad7caSAdrian Chadd 	 */
3894692ad7caSAdrian Chadd 
3895692ad7caSAdrian Chadd 	dwell_active = wpi_get_active_dwell_time(sc, c, nssid);
3896692ad7caSAdrian Chadd 	dwell_passive = wpi_get_passive_dwell_time(sc, c);
3897692ad7caSAdrian Chadd 
3898692ad7caSAdrian Chadd 	/* Make sure they're valid. */
3899692ad7caSAdrian Chadd 	if (dwell_passive <= dwell_active)
3900692ad7caSAdrian Chadd 		dwell_passive = dwell_active + 1;
3901692ad7caSAdrian Chadd 
3902692ad7caSAdrian Chadd 	chan->active = htole16(dwell_active);
3903692ad7caSAdrian Chadd 	chan->passive = htole16(dwell_passive);
3904692ad7caSAdrian Chadd 
3905692ad7caSAdrian Chadd 	chan->dsp_gain = 0x6e;  /* Default level */
3906692ad7caSAdrian Chadd 
3907692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_5GHZ(c))
3908692ad7caSAdrian Chadd 		chan->rf_gain = 0x3b;
3909692ad7caSAdrian Chadd 	else
3910692ad7caSAdrian Chadd 		chan->rf_gain = 0x28;
3911692ad7caSAdrian Chadd 
3912692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_SCAN, "Scanning %u Passive: %d\n",
3913fae61c69SAdrian Chadd 	    chan->chan, IEEE80211_IS_CHAN_PASSIVE(c));
3914692ad7caSAdrian Chadd 
3915692ad7caSAdrian Chadd 	hdr->nchan++;
3916692ad7caSAdrian Chadd 	chan++;
3917692ad7caSAdrian Chadd 
3918692ad7caSAdrian Chadd 	buflen = (uint8_t *)chan - buf;
3919692ad7caSAdrian Chadd 	hdr->len = htole16(buflen);
3920692ad7caSAdrian Chadd 
3921692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_CMD, "sending scan command nchan=%d\n",
3922692ad7caSAdrian Chadd 	    hdr->nchan);
3923692ad7caSAdrian Chadd 	error = wpi_cmd(sc, WPI_CMD_SCAN, buf, buflen, 1);
3924692ad7caSAdrian Chadd 	free(buf, M_DEVBUF);
3925692ad7caSAdrian Chadd 
392696dadeb0SAdrian Chadd 	if (error != 0)
392796dadeb0SAdrian Chadd 		goto fail;
392896dadeb0SAdrian Chadd 
3929692ad7caSAdrian Chadd 	sc->sc_scan_timer = 5;
3930692ad7caSAdrian Chadd 
3931692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3932692ad7caSAdrian Chadd 
393396dadeb0SAdrian Chadd 	return 0;
393496dadeb0SAdrian Chadd 
393596dadeb0SAdrian Chadd fail:	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
393696dadeb0SAdrian Chadd 
39376607310bSBenjamin Close 	return error;
39386607310bSBenjamin Close }
39396607310bSBenjamin Close 
3940692ad7caSAdrian Chadd static int
3941692ad7caSAdrian Chadd wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
3942692ad7caSAdrian Chadd {
3943692ad7caSAdrian Chadd 	struct ieee80211com *ic = vap->iv_ic;
3944692ad7caSAdrian Chadd 	struct ieee80211_node *ni = vap->iv_bss;
3945692ad7caSAdrian Chadd 	int error;
3946692ad7caSAdrian Chadd 
3947692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
3948692ad7caSAdrian Chadd 
3949692ad7caSAdrian Chadd 	/* Update adapter configuration. */
3950692ad7caSAdrian Chadd 	sc->rxon.associd = 0;
3951692ad7caSAdrian Chadd 	sc->rxon.filter &= ~htole32(WPI_FILTER_BSS);
3952692ad7caSAdrian Chadd 	IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
3953692ad7caSAdrian Chadd 	sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
3954692ad7caSAdrian Chadd 	sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
3955692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
3956692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
3957692ad7caSAdrian Chadd 	if (ic->ic_flags & IEEE80211_F_SHSLOT)
3958692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
3959692ad7caSAdrian Chadd 	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
3960692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
3961692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
3962692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0;
3963692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0x15;
3964692ad7caSAdrian Chadd 	} else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
3965692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0x03;
3966692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0;
3967692ad7caSAdrian Chadd 	} else {
3968692ad7caSAdrian Chadd 		/* Assume 802.11b/g. */
3969692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0x0f;
3970692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0x15;
3971692ad7caSAdrian Chadd 	}
3972692ad7caSAdrian Chadd 
3973692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n",
3974692ad7caSAdrian Chadd 	    sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask,
3975692ad7caSAdrian Chadd 	    sc->rxon.ofdm_mask);
3976692ad7caSAdrian Chadd 
3977692ad7caSAdrian Chadd 	if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
3978692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not send RXON\n",
3979692ad7caSAdrian Chadd 		    __func__);
3980692ad7caSAdrian Chadd 	}
3981692ad7caSAdrian Chadd 
3982692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
3983692ad7caSAdrian Chadd 
3984692ad7caSAdrian Chadd 	return error;
3985692ad7caSAdrian Chadd }
3986692ad7caSAdrian Chadd 
3987692ad7caSAdrian Chadd static int
39886f8421f8SAdrian Chadd wpi_config_beacon(struct wpi_vap *wvp)
39896f8421f8SAdrian Chadd {
3990d036bb20SAdrian Chadd 	struct ieee80211com *ic = wvp->wv_vap.iv_ic;
39916f8421f8SAdrian Chadd 	struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
39926f8421f8SAdrian Chadd 	struct wpi_buf *bcn = &wvp->wv_bcbuf;
39936f8421f8SAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
39946f8421f8SAdrian Chadd 	struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data;
39956f8421f8SAdrian Chadd 	struct ieee80211_tim_ie *tie;
39966f8421f8SAdrian Chadd 	struct mbuf *m;
39976f8421f8SAdrian Chadd 	uint8_t *ptr;
39986f8421f8SAdrian Chadd 	int error;
39996f8421f8SAdrian Chadd 
40006f8421f8SAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
40016f8421f8SAdrian Chadd 
4002b56fed3dSAdrian Chadd 	WPI_VAP_LOCK_ASSERT(wvp);
40036f8421f8SAdrian Chadd 
40046f8421f8SAdrian Chadd 	cmd->len = htole16(bcn->m->m_pkthdr.len);
40056f8421f8SAdrian Chadd 	cmd->plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ?
40066f8421f8SAdrian Chadd 	    wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1];
40076f8421f8SAdrian Chadd 
40086f8421f8SAdrian Chadd 	/* XXX seems to be unused */
40096f8421f8SAdrian Chadd 	if (*(bo->bo_tim) == IEEE80211_ELEMID_TIM) {
40106f8421f8SAdrian Chadd 		tie = (struct ieee80211_tim_ie *) bo->bo_tim;
40116f8421f8SAdrian Chadd 		ptr = mtod(bcn->m, uint8_t *);
40126f8421f8SAdrian Chadd 
40136f8421f8SAdrian Chadd 		cmd->tim = htole16(bo->bo_tim - ptr);
40146f8421f8SAdrian Chadd 		cmd->timsz = tie->tim_len;
40156f8421f8SAdrian Chadd 	}
40166f8421f8SAdrian Chadd 
40176f8421f8SAdrian Chadd 	/* Necessary for recursion in ieee80211_beacon_update(). */
40186f8421f8SAdrian Chadd 	m = bcn->m;
40196f8421f8SAdrian Chadd 	bcn->m = m_dup(m, M_NOWAIT);
40206f8421f8SAdrian Chadd 	if (bcn->m == NULL) {
40216f8421f8SAdrian Chadd 		device_printf(sc->sc_dev,
40226f8421f8SAdrian Chadd 		    "%s: could not copy beacon frame\n", __func__);
40236f8421f8SAdrian Chadd 		error = ENOMEM;
40246f8421f8SAdrian Chadd 		goto end;
40256f8421f8SAdrian Chadd 	}
40266f8421f8SAdrian Chadd 
40276f8421f8SAdrian Chadd 	if ((error = wpi_cmd2(sc, bcn)) != 0) {
40286f8421f8SAdrian Chadd 		device_printf(sc->sc_dev,
40296f8421f8SAdrian Chadd 		    "%s: could not update beacon frame, error %d", __func__,
40306f8421f8SAdrian Chadd 		    error);
40316f8421f8SAdrian Chadd 	}
40326f8421f8SAdrian Chadd 
40336f8421f8SAdrian Chadd 	/* Restore mbuf. */
40346f8421f8SAdrian Chadd end:	bcn->m = m;
40356f8421f8SAdrian Chadd 
40366f8421f8SAdrian Chadd 	return error;
40376f8421f8SAdrian Chadd }
40386f8421f8SAdrian Chadd 
40396f8421f8SAdrian Chadd static int
4040692ad7caSAdrian Chadd wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
4041692ad7caSAdrian Chadd {
4042565248e2SAdrian Chadd 	struct wpi_vap *wvp = WPI_VAP(ni->ni_vap);
4043692ad7caSAdrian Chadd 	struct wpi_buf *bcn = &wvp->wv_bcbuf;
40446f8421f8SAdrian Chadd 	struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4045692ad7caSAdrian Chadd 	struct mbuf *m;
40466f8421f8SAdrian Chadd 	int error;
4047692ad7caSAdrian Chadd 
4048692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4049692ad7caSAdrian Chadd 
4050692ad7caSAdrian Chadd 	if (ni->ni_chan == IEEE80211_CHAN_ANYC)
4051692ad7caSAdrian Chadd 		return EINVAL;
4052692ad7caSAdrian Chadd 
40536f8421f8SAdrian Chadd 	m = ieee80211_beacon_alloc(ni, bo);
4054692ad7caSAdrian Chadd 	if (m == NULL) {
4055692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4056692ad7caSAdrian Chadd 		    "%s: could not allocate beacon frame\n", __func__);
4057692ad7caSAdrian Chadd 		return ENOMEM;
4058692ad7caSAdrian Chadd 	}
4059692ad7caSAdrian Chadd 
4060b56fed3dSAdrian Chadd 	WPI_VAP_LOCK(wvp);
40616f8421f8SAdrian Chadd 	if (bcn->m != NULL)
40626f8421f8SAdrian Chadd 		m_freem(bcn->m);
4063692ad7caSAdrian Chadd 
4064692ad7caSAdrian Chadd 	bcn->m = m;
4065692ad7caSAdrian Chadd 
40666f8421f8SAdrian Chadd 	error = wpi_config_beacon(wvp);
4067b56fed3dSAdrian Chadd 	WPI_VAP_UNLOCK(wvp);
40686f8421f8SAdrian Chadd 
40696f8421f8SAdrian Chadd 	return error;
4070692ad7caSAdrian Chadd }
4071692ad7caSAdrian Chadd 
4072692ad7caSAdrian Chadd static void
4073692ad7caSAdrian Chadd wpi_update_beacon(struct ieee80211vap *vap, int item)
4074692ad7caSAdrian Chadd {
40755f25a0e9SAdrian Chadd 	struct wpi_softc *sc = vap->iv_ic->ic_ifp->if_softc;
40766f8421f8SAdrian Chadd 	struct wpi_vap *wvp = WPI_VAP(vap);
40776f8421f8SAdrian Chadd 	struct wpi_buf *bcn = &wvp->wv_bcbuf;
40786f8421f8SAdrian Chadd 	struct ieee80211_beacon_offsets *bo = &wvp->wv_boff;
4079692ad7caSAdrian Chadd 	struct ieee80211_node *ni = vap->iv_bss;
40806f8421f8SAdrian Chadd 	int mcast = 0;
40816f8421f8SAdrian Chadd 
40826f8421f8SAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4083692ad7caSAdrian Chadd 
4084b56fed3dSAdrian Chadd 	WPI_VAP_LOCK(wvp);
40856f8421f8SAdrian Chadd 	if (bcn->m == NULL) {
40866f8421f8SAdrian Chadd 		bcn->m = ieee80211_beacon_alloc(ni, bo);
40876f8421f8SAdrian Chadd 		if (bcn->m == NULL) {
4088692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
40896f8421f8SAdrian Chadd 			    "%s: could not allocate beacon frame\n", __func__);
40906f8421f8SAdrian Chadd 
40916f8421f8SAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR,
40926f8421f8SAdrian Chadd 			    __func__);
40936f8421f8SAdrian Chadd 
4094b56fed3dSAdrian Chadd 			WPI_VAP_UNLOCK(wvp);
40956f8421f8SAdrian Chadd 			return;
40966f8421f8SAdrian Chadd 		}
4097692ad7caSAdrian Chadd 	}
4098b56fed3dSAdrian Chadd 	WPI_VAP_UNLOCK(wvp);
40996f8421f8SAdrian Chadd 
41006f8421f8SAdrian Chadd 	if (item == IEEE80211_BEACON_TIM)
41016f8421f8SAdrian Chadd 		mcast = 1;	/* TODO */
41026f8421f8SAdrian Chadd 
41036f8421f8SAdrian Chadd 	setbit(bo->bo_flags, item);
41046f8421f8SAdrian Chadd 	ieee80211_beacon_update(ni, bo, bcn->m, mcast);
41056f8421f8SAdrian Chadd 
4106b56fed3dSAdrian Chadd 	WPI_VAP_LOCK(wvp);
41076f8421f8SAdrian Chadd 	wpi_config_beacon(wvp);
4108b56fed3dSAdrian Chadd 	WPI_VAP_UNLOCK(wvp);
41096f8421f8SAdrian Chadd 
41106f8421f8SAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4111692ad7caSAdrian Chadd }
4112692ad7caSAdrian Chadd 
4113d138d3baSAdrian Chadd static void
4114d138d3baSAdrian Chadd wpi_newassoc(struct ieee80211_node *ni, int isnew)
4115d138d3baSAdrian Chadd {
4116d138d3baSAdrian Chadd 	struct ieee80211vap *vap = ni->ni_vap;
4117d138d3baSAdrian Chadd 	struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc;
4118d138d3baSAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
4119d138d3baSAdrian Chadd 	int error;
4120d138d3baSAdrian Chadd 
4121d138d3baSAdrian Chadd 	WPI_NT_LOCK(sc);
4122d138d3baSAdrian Chadd 
4123d138d3baSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4124d138d3baSAdrian Chadd 
4125d138d3baSAdrian Chadd 	if (vap->iv_opmode != IEEE80211_M_STA && wn->id == WPI_ID_UNDEFINED) {
4126d138d3baSAdrian Chadd 		if ((error = wpi_add_ibss_node(sc, ni)) != 0) {
4127d138d3baSAdrian Chadd 			device_printf(sc->sc_dev,
4128d138d3baSAdrian Chadd 			    "%s: could not add IBSS node, error %d\n",
4129d138d3baSAdrian Chadd 			    __func__, error);
4130d138d3baSAdrian Chadd 		}
4131d138d3baSAdrian Chadd 	}
4132d138d3baSAdrian Chadd 	WPI_NT_UNLOCK(sc);
4133d138d3baSAdrian Chadd }
4134d138d3baSAdrian Chadd 
4135692ad7caSAdrian Chadd static int
4136692ad7caSAdrian Chadd wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
4137692ad7caSAdrian Chadd {
4138692ad7caSAdrian Chadd 	struct ieee80211com *ic = vap->iv_ic;
4139692ad7caSAdrian Chadd 	struct ieee80211_node *ni = vap->iv_bss;
4140692ad7caSAdrian Chadd 	int error;
4141692ad7caSAdrian Chadd 
4142692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
4143692ad7caSAdrian Chadd 
4144692ad7caSAdrian Chadd 	if (vap->iv_opmode == IEEE80211_M_MONITOR) {
4145692ad7caSAdrian Chadd 		/* Link LED blinks while monitoring. */
4146692ad7caSAdrian Chadd 		wpi_set_led(sc, WPI_LED_LINK, 5, 5);
4147692ad7caSAdrian Chadd 		return 0;
4148692ad7caSAdrian Chadd 	}
4149692ad7caSAdrian Chadd 
4150692ad7caSAdrian Chadd 	/* XXX kernel panic workaround */
4151692ad7caSAdrian Chadd 	if (ni->ni_chan == IEEE80211_CHAN_ANYC) {
4152692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: incomplete configuration\n",
4153692ad7caSAdrian Chadd 		    __func__);
4154692ad7caSAdrian Chadd 		return EINVAL;
4155692ad7caSAdrian Chadd 	}
4156692ad7caSAdrian Chadd 
4157692ad7caSAdrian Chadd 	if ((error = wpi_set_timing(sc, ni)) != 0) {
4158692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4159692ad7caSAdrian Chadd 		    "%s: could not set timing, error %d\n", __func__, error);
4160692ad7caSAdrian Chadd 		return error;
4161692ad7caSAdrian Chadd 	}
4162692ad7caSAdrian Chadd 
4163692ad7caSAdrian Chadd 	/* Update adapter configuration. */
4164692ad7caSAdrian Chadd 	IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid);
4165692ad7caSAdrian Chadd 	sc->rxon.associd = htole16(IEEE80211_NODE_AID(ni));
4166692ad7caSAdrian Chadd 	sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
4167692ad7caSAdrian Chadd 	sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF);
4168692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
4169692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ);
4170692ad7caSAdrian Chadd 	/* Short preamble and slot time are negotiated when associating. */
4171692ad7caSAdrian Chadd 	sc->rxon.flags &= ~htole32(WPI_RXON_SHPREAMBLE | WPI_RXON_SHSLOT);
4172692ad7caSAdrian Chadd 	if (ic->ic_flags & IEEE80211_F_SHSLOT)
4173692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_SHSLOT);
4174692ad7caSAdrian Chadd 	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
4175692ad7caSAdrian Chadd 		sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE);
4176692ad7caSAdrian Chadd 	if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
4177692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0;
4178692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0x15;
4179692ad7caSAdrian Chadd 	} else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
4180692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0x03;
4181692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0;
4182692ad7caSAdrian Chadd 	} else {
4183692ad7caSAdrian Chadd 		/* Assume 802.11b/g. */
4184692ad7caSAdrian Chadd 		sc->rxon.cck_mask  = 0x0f;
4185692ad7caSAdrian Chadd 		sc->rxon.ofdm_mask = 0x15;
4186692ad7caSAdrian Chadd 	}
4187692ad7caSAdrian Chadd 	sc->rxon.filter |= htole32(WPI_FILTER_BSS);
4188692ad7caSAdrian Chadd 
4189692ad7caSAdrian Chadd 	/* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
4190692ad7caSAdrian Chadd 
4191692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x\n",
4192692ad7caSAdrian Chadd 	    sc->rxon.chan, sc->rxon.flags);
4193692ad7caSAdrian Chadd 
4194692ad7caSAdrian Chadd 	if ((error = wpi_send_rxon(sc, 0, 1)) != 0) {
4195692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not send RXON\n",
4196692ad7caSAdrian Chadd 		    __func__);
4197692ad7caSAdrian Chadd 		return error;
4198692ad7caSAdrian Chadd 	}
4199692ad7caSAdrian Chadd 
4200692ad7caSAdrian Chadd 	if (vap->iv_opmode == IEEE80211_M_IBSS) {
4201692ad7caSAdrian Chadd 		if ((error = wpi_setup_beacon(sc, ni)) != 0) {
4202692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
4203692ad7caSAdrian Chadd 			    "%s: could not setup beacon, error %d\n", __func__,
4204692ad7caSAdrian Chadd 			    error);
4205692ad7caSAdrian Chadd 			return error;
4206692ad7caSAdrian Chadd 		}
4207692ad7caSAdrian Chadd 	}
4208692ad7caSAdrian Chadd 
4209692ad7caSAdrian Chadd 	if (vap->iv_opmode == IEEE80211_M_STA) {
4210692ad7caSAdrian Chadd 		/* Add BSS node. */
42117964dd56SAdrian Chadd 		WPI_NT_LOCK(sc);
42120ebca245SAdrian Chadd 		error = wpi_add_sta_node(sc, ni);
42137964dd56SAdrian Chadd 		WPI_NT_UNLOCK(sc);
42140ebca245SAdrian Chadd 		if (error != 0) {
4215692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
4216692ad7caSAdrian Chadd 			    "%s: could not add BSS node, error %d\n", __func__,
4217692ad7caSAdrian Chadd 			    error);
4218692ad7caSAdrian Chadd 			return error;
4219692ad7caSAdrian Chadd 		}
4220692ad7caSAdrian Chadd 	}
4221692ad7caSAdrian Chadd 
4222692ad7caSAdrian Chadd 	/* Link LED always on while associated. */
4223692ad7caSAdrian Chadd 	wpi_set_led(sc, WPI_LED_LINK, 0, 1);
4224692ad7caSAdrian Chadd 
4225692ad7caSAdrian Chadd 	/* Start periodic calibration timer. */
4226692ad7caSAdrian Chadd 	callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
4227692ad7caSAdrian Chadd 
4228692ad7caSAdrian Chadd 	/* Enable power-saving mode if requested by user. */
4229692ad7caSAdrian Chadd 	if (vap->iv_flags & IEEE80211_F_PMGTON)
4230692ad7caSAdrian Chadd 		(void)wpi_set_pslevel(sc, 0, 3, 1);
4231fae61c69SAdrian Chadd 	else
4232fae61c69SAdrian Chadd 		(void)wpi_set_pslevel(sc, 0, 0, 1);
4233692ad7caSAdrian Chadd 
4234692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4235692ad7caSAdrian Chadd 
4236692ad7caSAdrian Chadd 	return 0;
4237692ad7caSAdrian Chadd }
4238692ad7caSAdrian Chadd 
4239692ad7caSAdrian Chadd static int
4240692ad7caSAdrian Chadd wpi_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
4241692ad7caSAdrian Chadd     ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
4242692ad7caSAdrian Chadd {
42435f25a0e9SAdrian Chadd 	struct wpi_softc *sc = vap->iv_ic->ic_ifp->if_softc;
4244692ad7caSAdrian Chadd 
4245692ad7caSAdrian Chadd 	if (!(&vap->iv_nw_keys[0] <= k &&
4246692ad7caSAdrian Chadd 	    k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
4247692ad7caSAdrian Chadd 		if (k->wk_flags & IEEE80211_KEY_GROUP) {
4248692ad7caSAdrian Chadd 			/* should not happen */
4249692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_KEY, "%s: bogus group key\n",
4250692ad7caSAdrian Chadd 			    __func__);
4251692ad7caSAdrian Chadd 			return 0;
4252692ad7caSAdrian Chadd 		}
4253692ad7caSAdrian Chadd 		*keyix = 0;	/* NB: use key index 0 for ucast key */
4254692ad7caSAdrian Chadd 	} else {
4255692ad7caSAdrian Chadd 		*keyix = *rxkeyix = k - vap->iv_nw_keys;
4256692ad7caSAdrian Chadd 
4257692ad7caSAdrian Chadd 		if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_AES_CCM)
4258692ad7caSAdrian Chadd 			k->wk_flags |= IEEE80211_KEY_SWCRYPT;
4259692ad7caSAdrian Chadd 	}
4260692ad7caSAdrian Chadd 	return 1;
4261692ad7caSAdrian Chadd }
4262692ad7caSAdrian Chadd 
4263692ad7caSAdrian Chadd static int
4264692ad7caSAdrian Chadd wpi_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k,
4265692ad7caSAdrian Chadd     const uint8_t mac[IEEE80211_ADDR_LEN])
4266692ad7caSAdrian Chadd {
4267692ad7caSAdrian Chadd 	const struct ieee80211_cipher *cip = k->wk_cipher;
4268692ad7caSAdrian Chadd 	struct ieee80211com *ic = vap->iv_ic;
4269692ad7caSAdrian Chadd 	struct ieee80211_node *ni = vap->iv_bss;
4270692ad7caSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
4271a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
4272692ad7caSAdrian Chadd 	struct wpi_node_info node;
4273692ad7caSAdrian Chadd 	uint16_t kflags;
4274692ad7caSAdrian Chadd 	int error;
4275692ad7caSAdrian Chadd 
4276692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4277692ad7caSAdrian Chadd 
4278692ad7caSAdrian Chadd 	switch (cip->ic_cipher) {
4279692ad7caSAdrian Chadd 	case IEEE80211_CIPHER_AES_CCM:
4280692ad7caSAdrian Chadd 		if (k->wk_flags & IEEE80211_KEY_GROUP)
4281692ad7caSAdrian Chadd 			return 1;
4282692ad7caSAdrian Chadd 
4283692ad7caSAdrian Chadd 		kflags = WPI_KFLAG_CCMP;
4284692ad7caSAdrian Chadd 		break;
4285692ad7caSAdrian Chadd 	default:
4286692ad7caSAdrian Chadd 		/* null_key_set() */
4287692ad7caSAdrian Chadd 		return 1;
4288692ad7caSAdrian Chadd 	}
4289692ad7caSAdrian Chadd 
4290692ad7caSAdrian Chadd 	if (wn->id == WPI_ID_UNDEFINED)
4291692ad7caSAdrian Chadd 		return 0;
4292692ad7caSAdrian Chadd 
4293692ad7caSAdrian Chadd 	kflags |= WPI_KFLAG_KID(k->wk_keyix);
4294692ad7caSAdrian Chadd 	if (k->wk_flags & IEEE80211_KEY_GROUP)
4295692ad7caSAdrian Chadd 		kflags |= WPI_KFLAG_MULTICAST;
4296692ad7caSAdrian Chadd 
42976607310bSBenjamin Close 	memset(&node, 0, sizeof node);
4298692ad7caSAdrian Chadd 	node.id = wn->id;
4299692ad7caSAdrian Chadd 	node.control = WPI_NODE_UPDATE;
4300692ad7caSAdrian Chadd 	node.flags = WPI_FLAG_KEY_SET;
4301692ad7caSAdrian Chadd 	node.kflags = htole16(kflags);
4302692ad7caSAdrian Chadd 	memcpy(node.key, k->wk_key, k->wk_keylen);
4303692ad7caSAdrian Chadd 
4304692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_KEY, "set key id=%d for node %d\n", k->wk_keyix,
4305692ad7caSAdrian Chadd 	    node.id);
4306692ad7caSAdrian Chadd 
4307692ad7caSAdrian Chadd 	error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
43086607310bSBenjamin Close 	if (error != 0) {
4309692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "can't update node info, error %d\n",
4310692ad7caSAdrian Chadd 		    error);
4311692ad7caSAdrian Chadd 		return 0;
4312692ad7caSAdrian Chadd 	}
4313692ad7caSAdrian Chadd 
4314692ad7caSAdrian Chadd 	return 1;
4315692ad7caSAdrian Chadd }
4316692ad7caSAdrian Chadd 
4317692ad7caSAdrian Chadd static int
4318692ad7caSAdrian Chadd wpi_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
4319692ad7caSAdrian Chadd {
4320692ad7caSAdrian Chadd 	const struct ieee80211_cipher *cip = k->wk_cipher;
4321692ad7caSAdrian Chadd 	struct ieee80211com *ic = vap->iv_ic;
4322692ad7caSAdrian Chadd 	struct ieee80211_node *ni = vap->iv_bss;
4323692ad7caSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
4324a5e093b0SAdrian Chadd 	struct wpi_node *wn = WPI_NODE(ni);
4325692ad7caSAdrian Chadd 	struct wpi_node_info node;
4326692ad7caSAdrian Chadd 
4327692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4328692ad7caSAdrian Chadd 
4329692ad7caSAdrian Chadd 	switch (cip->ic_cipher) {
4330692ad7caSAdrian Chadd 	case IEEE80211_CIPHER_AES_CCM:
4331692ad7caSAdrian Chadd 		break;
4332692ad7caSAdrian Chadd 	default:
4333692ad7caSAdrian Chadd 		/* null_key_delete() */
4334692ad7caSAdrian Chadd 		return 1;
4335692ad7caSAdrian Chadd 	}
4336692ad7caSAdrian Chadd 
4337692ad7caSAdrian Chadd 	if (vap->iv_state != IEEE80211_S_RUN ||
4338692ad7caSAdrian Chadd 	    (k->wk_flags & IEEE80211_KEY_GROUP))
4339692ad7caSAdrian Chadd 		return 1; /* Nothing to do. */
4340692ad7caSAdrian Chadd 
4341692ad7caSAdrian Chadd 	memset(&node, 0, sizeof node);
4342692ad7caSAdrian Chadd 	node.id = wn->id;
4343692ad7caSAdrian Chadd 	node.control = WPI_NODE_UPDATE;
4344692ad7caSAdrian Chadd 	node.flags = WPI_FLAG_KEY_SET;
4345692ad7caSAdrian Chadd 
4346692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_KEY, "delete keys for node %d\n", node.id);
4347692ad7caSAdrian Chadd 	(void)wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
4348692ad7caSAdrian Chadd 
4349692ad7caSAdrian Chadd 	return 1;
4350692ad7caSAdrian Chadd }
4351692ad7caSAdrian Chadd 
4352692ad7caSAdrian Chadd /*
4353692ad7caSAdrian Chadd  * This function is called after the runtime firmware notifies us of its
4354692ad7caSAdrian Chadd  * readiness (called in a process context).
4355692ad7caSAdrian Chadd  */
4356692ad7caSAdrian Chadd static int
4357692ad7caSAdrian Chadd wpi_post_alive(struct wpi_softc *sc)
4358692ad7caSAdrian Chadd {
4359692ad7caSAdrian Chadd 	int ntries, error;
4360692ad7caSAdrian Chadd 
4361692ad7caSAdrian Chadd 	/* Check (again) that the radio is not disabled. */
4362692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4363692ad7caSAdrian Chadd 		return error;
4364692ad7caSAdrian Chadd 
4365692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4366692ad7caSAdrian Chadd 
4367692ad7caSAdrian Chadd 	/* NB: Runtime firmware must be up and running. */
4368692ad7caSAdrian Chadd 	if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) {
4369692ad7caSAdrian Chadd  		device_printf(sc->sc_dev,
4370692ad7caSAdrian Chadd 		    "RF switch: radio disabled (%s)\n", __func__);
4371692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
4372692ad7caSAdrian Chadd 		return EPERM;   /* :-) */
4373692ad7caSAdrian Chadd 	}
4374692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4375692ad7caSAdrian Chadd 
4376692ad7caSAdrian Chadd 	/* Wait for thermal sensor to calibrate. */
4377692ad7caSAdrian Chadd 	for (ntries = 0; ntries < 1000; ntries++) {
4378692ad7caSAdrian Chadd 		if ((sc->temp = (int)WPI_READ(sc, WPI_UCODE_GP2)) != 0)
4379692ad7caSAdrian Chadd 			break;
4380692ad7caSAdrian Chadd 		DELAY(10);
4381692ad7caSAdrian Chadd 	}
4382692ad7caSAdrian Chadd 
4383692ad7caSAdrian Chadd 	if (ntries == 1000) {
4384692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4385692ad7caSAdrian Chadd 		    "timeout waiting for thermal sensor calibration\n");
4386692ad7caSAdrian Chadd 		return ETIMEDOUT;
4387692ad7caSAdrian Chadd 	}
4388692ad7caSAdrian Chadd 
4389692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d\n", sc->temp);
4390692ad7caSAdrian Chadd 	return 0;
4391692ad7caSAdrian Chadd }
4392692ad7caSAdrian Chadd 
4393692ad7caSAdrian Chadd /*
4394692ad7caSAdrian Chadd  * The firmware boot code is small and is intended to be copied directly into
4395692ad7caSAdrian Chadd  * the NIC internal memory (no DMA transfer).
4396692ad7caSAdrian Chadd  */
4397692ad7caSAdrian Chadd static int
4398692ad7caSAdrian Chadd wpi_load_bootcode(struct wpi_softc *sc, const uint8_t *ucode, int size)
4399692ad7caSAdrian Chadd {
4400692ad7caSAdrian Chadd 	int error, ntries;
4401692ad7caSAdrian Chadd 
4402692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_HW, "Loading microcode size 0x%x\n", size);
4403692ad7caSAdrian Chadd 
4404692ad7caSAdrian Chadd 	size /= sizeof (uint32_t);
4405692ad7caSAdrian Chadd 
4406692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4407692ad7caSAdrian Chadd 		return error;
4408692ad7caSAdrian Chadd 
4409692ad7caSAdrian Chadd 	/* Copy microcode image into NIC memory. */
4410692ad7caSAdrian Chadd 	wpi_prph_write_region_4(sc, WPI_BSM_SRAM_BASE,
4411692ad7caSAdrian Chadd 	    (const uint32_t *)ucode, size);
4412692ad7caSAdrian Chadd 
4413692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_WR_MEM_SRC, 0);
4414692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_WR_MEM_DST, WPI_FW_TEXT_BASE);
4415692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_WR_DWCOUNT, size);
4416692ad7caSAdrian Chadd 
4417692ad7caSAdrian Chadd 	/* Start boot load now. */
4418692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START);
4419692ad7caSAdrian Chadd 
4420692ad7caSAdrian Chadd 	/* Wait for transfer to complete. */
4421692ad7caSAdrian Chadd 	for (ntries = 0; ntries < 1000; ntries++) {
4422692ad7caSAdrian Chadd 		uint32_t status = WPI_READ(sc, WPI_FH_TX_STATUS);
4423692ad7caSAdrian Chadd 		DPRINTF(sc, WPI_DEBUG_HW,
4424692ad7caSAdrian Chadd 		    "firmware status=0x%x, val=0x%x, result=0x%x\n", status,
4425692ad7caSAdrian Chadd 		    WPI_FH_TX_STATUS_IDLE(6),
4426692ad7caSAdrian Chadd 		    status & WPI_FH_TX_STATUS_IDLE(6));
4427692ad7caSAdrian Chadd 		if (status & WPI_FH_TX_STATUS_IDLE(6)) {
4428692ad7caSAdrian Chadd 			DPRINTF(sc, WPI_DEBUG_HW,
4429692ad7caSAdrian Chadd 			    "Status Match! - ntries = %d\n", ntries);
4430692ad7caSAdrian Chadd 			break;
4431692ad7caSAdrian Chadd 		}
4432692ad7caSAdrian Chadd 		DELAY(10);
4433692ad7caSAdrian Chadd 	}
4434692ad7caSAdrian Chadd 	if (ntries == 1000) {
4435692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4436692ad7caSAdrian Chadd 		    __func__);
4437692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
4438692ad7caSAdrian Chadd 		return ETIMEDOUT;
4439692ad7caSAdrian Chadd 	}
4440692ad7caSAdrian Chadd 
4441692ad7caSAdrian Chadd 	/* Enable boot after power up. */
4442692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN);
4443692ad7caSAdrian Chadd 
4444692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4445692ad7caSAdrian Chadd 	return 0;
4446692ad7caSAdrian Chadd }
4447692ad7caSAdrian Chadd 
4448692ad7caSAdrian Chadd static int
4449692ad7caSAdrian Chadd wpi_load_firmware(struct wpi_softc *sc)
4450692ad7caSAdrian Chadd {
4451692ad7caSAdrian Chadd 	struct wpi_fw_info *fw = &sc->fw;
4452692ad7caSAdrian Chadd 	struct wpi_dma_info *dma = &sc->fw_dma;
4453692ad7caSAdrian Chadd 	int error;
4454692ad7caSAdrian Chadd 
4455692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4456692ad7caSAdrian Chadd 
4457692ad7caSAdrian Chadd 	/* Copy initialization sections into pre-allocated DMA-safe memory. */
4458692ad7caSAdrian Chadd 	memcpy(dma->vaddr, fw->init.data, fw->init.datasz);
4459692ad7caSAdrian Chadd 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4460692ad7caSAdrian Chadd 	memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->init.text, fw->init.textsz);
4461692ad7caSAdrian Chadd 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4462692ad7caSAdrian Chadd 
4463692ad7caSAdrian Chadd 	/* Tell adapter where to find initialization sections. */
4464692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4465692ad7caSAdrian Chadd 		return error;
4466692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4467692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->init.datasz);
4468692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4469692ad7caSAdrian Chadd 	    dma->paddr + WPI_FW_DATA_MAXSZ);
4470692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, fw->init.textsz);
4471692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4472692ad7caSAdrian Chadd 
4473692ad7caSAdrian Chadd 	/* Load firmware boot code. */
4474692ad7caSAdrian Chadd 	error = wpi_load_bootcode(sc, fw->boot.text, fw->boot.textsz);
4475692ad7caSAdrian Chadd 	if (error != 0) {
4476692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "%s: could not load boot firmware\n",
4477692ad7caSAdrian Chadd 		    __func__);
44786607310bSBenjamin Close 		return error;
44796607310bSBenjamin Close 	}
44806607310bSBenjamin Close 
4481692ad7caSAdrian Chadd 	/* Now press "execute". */
4482692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_RESET, 0);
4483692ad7caSAdrian Chadd 
4484692ad7caSAdrian Chadd 	/* Wait at most one second for first alive notification. */
448576fdf7ebSAdrian Chadd 	if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
4486692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4487692ad7caSAdrian Chadd 		    "%s: timeout waiting for adapter to initialize, error %d\n",
4488692ad7caSAdrian Chadd 		    __func__, error);
44896607310bSBenjamin Close 		return error;
44906607310bSBenjamin Close 	}
44916607310bSBenjamin Close 
4492692ad7caSAdrian Chadd 	/* Copy runtime sections into pre-allocated DMA-safe memory. */
4493692ad7caSAdrian Chadd 	memcpy(dma->vaddr, fw->main.data, fw->main.datasz);
4494692ad7caSAdrian Chadd 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4495692ad7caSAdrian Chadd 	memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->main.text, fw->main.textsz);
4496692ad7caSAdrian Chadd 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
4497692ad7caSAdrian Chadd 
4498692ad7caSAdrian Chadd 	/* Tell adapter where to find runtime sections. */
4499692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4500692ad7caSAdrian Chadd 		return error;
4501692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr);
4502692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->main.datasz);
4503692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR,
4504692ad7caSAdrian Chadd 	    dma->paddr + WPI_FW_DATA_MAXSZ);
4505692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE,
4506692ad7caSAdrian Chadd 	    WPI_FW_UPDATED | fw->main.textsz);
4507692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4508692ad7caSAdrian Chadd 
4509692ad7caSAdrian Chadd 	return 0;
4510692ad7caSAdrian Chadd }
4511692ad7caSAdrian Chadd 
4512692ad7caSAdrian Chadd static int
4513692ad7caSAdrian Chadd wpi_read_firmware(struct wpi_softc *sc)
4514692ad7caSAdrian Chadd {
4515692ad7caSAdrian Chadd 	const struct firmware *fp;
4516692ad7caSAdrian Chadd 	struct wpi_fw_info *fw = &sc->fw;
4517692ad7caSAdrian Chadd 	const struct wpi_firmware_hdr *hdr;
4518692ad7caSAdrian Chadd 	int error;
4519692ad7caSAdrian Chadd 
4520692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4521692ad7caSAdrian Chadd 
4522692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE,
4523692ad7caSAdrian Chadd 	    "Attempting Loading Firmware from %s module\n", WPI_FW_NAME);
4524692ad7caSAdrian Chadd 
4525692ad7caSAdrian Chadd 	WPI_UNLOCK(sc);
4526692ad7caSAdrian Chadd 	fp = firmware_get(WPI_FW_NAME);
4527692ad7caSAdrian Chadd 	WPI_LOCK(sc);
4528692ad7caSAdrian Chadd 
4529692ad7caSAdrian Chadd 	if (fp == NULL) {
4530692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4531692ad7caSAdrian Chadd 		    "could not load firmware image '%s'\n", WPI_FW_NAME);
4532692ad7caSAdrian Chadd 		return EINVAL;
4533692ad7caSAdrian Chadd 	}
4534692ad7caSAdrian Chadd 
4535692ad7caSAdrian Chadd 	sc->fw_fp = fp;
4536692ad7caSAdrian Chadd 
4537692ad7caSAdrian Chadd 	if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
4538692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4539692ad7caSAdrian Chadd 		    "firmware file too short: %zu bytes\n", fp->datasize);
4540692ad7caSAdrian Chadd 		error = EINVAL;
4541692ad7caSAdrian Chadd 		goto fail;
4542692ad7caSAdrian Chadd 	}
4543692ad7caSAdrian Chadd 
4544692ad7caSAdrian Chadd 	fw->size = fp->datasize;
4545692ad7caSAdrian Chadd 	fw->data = (const uint8_t *)fp->data;
4546692ad7caSAdrian Chadd 
4547692ad7caSAdrian Chadd 	/* Extract firmware header information. */
4548692ad7caSAdrian Chadd 	hdr = (const struct wpi_firmware_hdr *)fw->data;
4549692ad7caSAdrian Chadd 
4550692ad7caSAdrian Chadd 	/*     |  RUNTIME FIRMWARE   |    INIT FIRMWARE    | BOOT FW  |
4551692ad7caSAdrian Chadd 	   |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
4552692ad7caSAdrian Chadd 
4553692ad7caSAdrian Chadd 	fw->main.textsz = le32toh(hdr->rtextsz);
4554692ad7caSAdrian Chadd 	fw->main.datasz = le32toh(hdr->rdatasz);
4555692ad7caSAdrian Chadd 	fw->init.textsz = le32toh(hdr->itextsz);
4556692ad7caSAdrian Chadd 	fw->init.datasz = le32toh(hdr->idatasz);
4557692ad7caSAdrian Chadd 	fw->boot.textsz = le32toh(hdr->btextsz);
4558692ad7caSAdrian Chadd 	fw->boot.datasz = 0;
4559692ad7caSAdrian Chadd 
4560692ad7caSAdrian Chadd 	/* Sanity-check firmware header. */
4561692ad7caSAdrian Chadd 	if (fw->main.textsz > WPI_FW_TEXT_MAXSZ ||
4562692ad7caSAdrian Chadd 	    fw->main.datasz > WPI_FW_DATA_MAXSZ ||
4563692ad7caSAdrian Chadd 	    fw->init.textsz > WPI_FW_TEXT_MAXSZ ||
4564692ad7caSAdrian Chadd 	    fw->init.datasz > WPI_FW_DATA_MAXSZ ||
4565692ad7caSAdrian Chadd 	    fw->boot.textsz > WPI_FW_BOOT_TEXT_MAXSZ ||
4566692ad7caSAdrian Chadd 	    (fw->boot.textsz & 3) != 0) {
4567692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "invalid firmware header\n");
4568692ad7caSAdrian Chadd 		error = EINVAL;
4569692ad7caSAdrian Chadd 		goto fail;
4570692ad7caSAdrian Chadd 	}
4571692ad7caSAdrian Chadd 
4572692ad7caSAdrian Chadd 	/* Check that all firmware sections fit. */
4573692ad7caSAdrian Chadd 	if (fw->size < sizeof (*hdr) + fw->main.textsz + fw->main.datasz +
4574692ad7caSAdrian Chadd 	    fw->init.textsz + fw->init.datasz + fw->boot.textsz) {
4575692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4576692ad7caSAdrian Chadd 		    "firmware file too short: %zu bytes\n", fw->size);
4577692ad7caSAdrian Chadd 		error = EINVAL;
4578692ad7caSAdrian Chadd 		goto fail;
4579692ad7caSAdrian Chadd 	}
4580692ad7caSAdrian Chadd 
4581692ad7caSAdrian Chadd 	/* Get pointers to firmware sections. */
4582692ad7caSAdrian Chadd 	fw->main.text = (const uint8_t *)(hdr + 1);
4583692ad7caSAdrian Chadd 	fw->main.data = fw->main.text + fw->main.textsz;
4584692ad7caSAdrian Chadd 	fw->init.text = fw->main.data + fw->main.datasz;
4585692ad7caSAdrian Chadd 	fw->init.data = fw->init.text + fw->init.textsz;
4586692ad7caSAdrian Chadd 	fw->boot.text = fw->init.data + fw->init.datasz;
4587692ad7caSAdrian Chadd 
4588692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE,
4589692ad7caSAdrian Chadd 	    "Firmware Version: Major %d, Minor %d, Driver %d, \n"
45907167f5fcSAdrian Chadd 	    "runtime (text: %u, data: %u) init (text: %u, data %u) "
45917167f5fcSAdrian Chadd 	    "boot (text %u)\n", hdr->major, hdr->minor, le32toh(hdr->driver),
4592692ad7caSAdrian Chadd 	    fw->main.textsz, fw->main.datasz,
4593692ad7caSAdrian Chadd 	    fw->init.textsz, fw->init.datasz, fw->boot.textsz);
4594692ad7caSAdrian Chadd 
4595692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.text %p\n", fw->main.text);
4596692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.data %p\n", fw->main.data);
4597692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.text %p\n", fw->init.text);
4598692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.data %p\n", fw->init.data);
4599692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->boot.text %p\n", fw->boot.text);
4600692ad7caSAdrian Chadd 
4601692ad7caSAdrian Chadd 	return 0;
4602692ad7caSAdrian Chadd 
4603692ad7caSAdrian Chadd fail:	wpi_unload_firmware(sc);
4604692ad7caSAdrian Chadd 	return error;
4605692ad7caSAdrian Chadd }
4606692ad7caSAdrian Chadd 
4607692ad7caSAdrian Chadd /**
4608692ad7caSAdrian Chadd  * Free the referenced firmware image
4609692ad7caSAdrian Chadd  */
4610692ad7caSAdrian Chadd static void
4611692ad7caSAdrian Chadd wpi_unload_firmware(struct wpi_softc *sc)
4612692ad7caSAdrian Chadd {
4613692ad7caSAdrian Chadd 	if (sc->fw_fp != NULL) {
4614692ad7caSAdrian Chadd 		firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
4615692ad7caSAdrian Chadd 		sc->fw_fp = NULL;
4616692ad7caSAdrian Chadd 	}
4617692ad7caSAdrian Chadd }
4618692ad7caSAdrian Chadd 
4619692ad7caSAdrian Chadd static int
4620692ad7caSAdrian Chadd wpi_clock_wait(struct wpi_softc *sc)
4621692ad7caSAdrian Chadd {
4622692ad7caSAdrian Chadd 	int ntries;
4623692ad7caSAdrian Chadd 
4624692ad7caSAdrian Chadd 	/* Set "initialization complete" bit. */
4625692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
4626692ad7caSAdrian Chadd 
4627692ad7caSAdrian Chadd 	/* Wait for clock stabilization. */
4628692ad7caSAdrian Chadd 	for (ntries = 0; ntries < 2500; ntries++) {
4629692ad7caSAdrian Chadd 		if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_MAC_CLOCK_READY)
4630692ad7caSAdrian Chadd 			return 0;
4631692ad7caSAdrian Chadd 		DELAY(100);
4632692ad7caSAdrian Chadd 	}
4633692ad7caSAdrian Chadd 	device_printf(sc->sc_dev,
4634692ad7caSAdrian Chadd 	    "%s: timeout waiting for clock stabilization\n", __func__);
4635692ad7caSAdrian Chadd 
4636692ad7caSAdrian Chadd 	return ETIMEDOUT;
4637692ad7caSAdrian Chadd }
4638692ad7caSAdrian Chadd 
4639692ad7caSAdrian Chadd static int
4640692ad7caSAdrian Chadd wpi_apm_init(struct wpi_softc *sc)
4641692ad7caSAdrian Chadd {
4642692ad7caSAdrian Chadd 	uint32_t reg;
4643692ad7caSAdrian Chadd 	int error;
4644692ad7caSAdrian Chadd 
4645692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4646692ad7caSAdrian Chadd 
4647692ad7caSAdrian Chadd 	/* Disable L0s exit timer (NMI bug workaround). */
4648692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_DIS_L0S_TIMER);
4649692ad7caSAdrian Chadd 	/* Don't wait for ICH L0s (ICH bug workaround). */
4650692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_L1A_NO_L0S_RX);
4651692ad7caSAdrian Chadd 
4652692ad7caSAdrian Chadd 	/* Set FH wait threshold to max (HW bug under stress workaround). */
4653692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000);
4654692ad7caSAdrian Chadd 
4655692ad7caSAdrian Chadd 	/* Retrieve PCIe Active State Power Management (ASPM). */
4656692ad7caSAdrian Chadd 	reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1);
4657692ad7caSAdrian Chadd 	/* Workaround for HW instability in PCIe L0->L0s->L1 transition. */
4658692ad7caSAdrian Chadd 	if (reg & 0x02)	/* L1 Entry enabled. */
4659692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
4660692ad7caSAdrian Chadd 	else
4661692ad7caSAdrian Chadd 		WPI_CLRBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA);
4662692ad7caSAdrian Chadd 
4663692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_ANA_PLL, WPI_ANA_PLL_INIT);
4664692ad7caSAdrian Chadd 
4665692ad7caSAdrian Chadd 	/* Wait for clock stabilization before accessing prph. */
4666692ad7caSAdrian Chadd 	if ((error = wpi_clock_wait(sc)) != 0)
4667692ad7caSAdrian Chadd 		return error;
4668692ad7caSAdrian Chadd 
4669692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4670692ad7caSAdrian Chadd 		return error;
4671692ad7caSAdrian Chadd 	/* Enable DMA and BSM (Bootstrap State Machine). */
4672692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_APMG_CLK_EN,
4673692ad7caSAdrian Chadd 	    WPI_APMG_CLK_CTRL_DMA_CLK_RQT | WPI_APMG_CLK_CTRL_BSM_CLK_RQT);
4674692ad7caSAdrian Chadd 	DELAY(20);
4675692ad7caSAdrian Chadd 	/* Disable L1-Active. */
4676692ad7caSAdrian Chadd 	wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS);
4677fae61c69SAdrian Chadd 	/* ??? */
4678fae61c69SAdrian Chadd 	wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000E00);
4679692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4680692ad7caSAdrian Chadd 
46816607310bSBenjamin Close 	return 0;
46826607310bSBenjamin Close }
46836607310bSBenjamin Close 
46846607310bSBenjamin Close static void
4685692ad7caSAdrian Chadd wpi_apm_stop_master(struct wpi_softc *sc)
46866607310bSBenjamin Close {
46876607310bSBenjamin Close 	int ntries;
46886607310bSBenjamin Close 
4689692ad7caSAdrian Chadd 	/* Stop busmaster DMA activity. */
4690692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_RESET, WPI_RESET_STOP_MASTER);
46916607310bSBenjamin Close 
4692692ad7caSAdrian Chadd 	if ((WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_PS_MASK) ==
4693692ad7caSAdrian Chadd 	    WPI_GP_CNTRL_MAC_PS)
4694692ad7caSAdrian Chadd 		return; /* Already asleep. */
46956607310bSBenjamin Close 
46966607310bSBenjamin Close 	for (ntries = 0; ntries < 100; ntries++) {
4697692ad7caSAdrian Chadd 		if (WPI_READ(sc, WPI_RESET) & WPI_RESET_MASTER_DISABLED)
4698692ad7caSAdrian Chadd 			return;
46996607310bSBenjamin Close 		DELAY(10);
47006607310bSBenjamin Close 	}
47017167f5fcSAdrian Chadd 	device_printf(sc->sc_dev, "%s: timeout waiting for master\n",
47027167f5fcSAdrian Chadd 	    __func__);
47036607310bSBenjamin Close }
4704692ad7caSAdrian Chadd 
4705692ad7caSAdrian Chadd static void
4706692ad7caSAdrian Chadd wpi_apm_stop(struct wpi_softc *sc)
4707692ad7caSAdrian Chadd {
4708692ad7caSAdrian Chadd 	wpi_apm_stop_master(sc);
4709692ad7caSAdrian Chadd 
4710692ad7caSAdrian Chadd 	/* Reset the entire device. */
4711692ad7caSAdrian Chadd 	WPI_SETBITS(sc, WPI_RESET, WPI_RESET_SW);
4712692ad7caSAdrian Chadd 	DELAY(10);
4713692ad7caSAdrian Chadd 	/* Clear "initialization complete" bit. */
4714692ad7caSAdrian Chadd 	WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE);
4715692ad7caSAdrian Chadd }
4716692ad7caSAdrian Chadd 
4717692ad7caSAdrian Chadd static void
4718692ad7caSAdrian Chadd wpi_nic_config(struct wpi_softc *sc)
4719692ad7caSAdrian Chadd {
4720692ad7caSAdrian Chadd 	uint32_t rev;
4721692ad7caSAdrian Chadd 
4722692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
4723692ad7caSAdrian Chadd 
4724692ad7caSAdrian Chadd 	/* voodoo from the Linux "driver".. */
4725692ad7caSAdrian Chadd 	rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
4726692ad7caSAdrian Chadd 	if ((rev & 0xc0) == 0x40)
4727692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MB);
4728692ad7caSAdrian Chadd 	else if (!(rev & 0x80))
4729692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MM);
4730692ad7caSAdrian Chadd 
4731692ad7caSAdrian Chadd 	if (sc->cap == 0x80)
4732692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_SKU_MRC);
4733692ad7caSAdrian Chadd 
4734f736d898SAdrian Chadd 	if ((sc->rev & 0xf0) == 0xd0)
4735692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
4736692ad7caSAdrian Chadd 	else
4737692ad7caSAdrian Chadd 		WPI_CLRBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D);
4738692ad7caSAdrian Chadd 
4739692ad7caSAdrian Chadd 	if (sc->type > 1)
4740692ad7caSAdrian Chadd 		WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_TYPE_B);
47416607310bSBenjamin Close }
47426607310bSBenjamin Close 
47436607310bSBenjamin Close static int
4744692ad7caSAdrian Chadd wpi_hw_init(struct wpi_softc *sc)
47456607310bSBenjamin Close {
4746692ad7caSAdrian Chadd 	int chnl, ntries, error;
47476607310bSBenjamin Close 
4748692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
47496607310bSBenjamin Close 
4750692ad7caSAdrian Chadd 	/* Clear pending interrupts. */
4751692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT, 0xffffffff);
4752692ad7caSAdrian Chadd 
4753692ad7caSAdrian Chadd 	if ((error = wpi_apm_init(sc)) != 0) {
4754692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4755692ad7caSAdrian Chadd 		    "%s: could not power ON adapter, error %d\n", __func__,
4756692ad7caSAdrian Chadd 		    error);
4757692ad7caSAdrian Chadd 		return error;
4758692ad7caSAdrian Chadd 	}
4759692ad7caSAdrian Chadd 
4760692ad7caSAdrian Chadd 	/* Select VMAIN power source. */
4761692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4762692ad7caSAdrian Chadd 		return error;
4763692ad7caSAdrian Chadd 	wpi_prph_clrbits(sc, WPI_APMG_PS, WPI_APMG_PS_PWR_SRC_MASK);
4764692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4765692ad7caSAdrian Chadd 	/* Spin until VMAIN gets selected. */
47666607310bSBenjamin Close 	for (ntries = 0; ntries < 5000; ntries++) {
4767692ad7caSAdrian Chadd 		if (WPI_READ(sc, WPI_GPIO_IN) & WPI_GPIO_IN_VMAIN)
47686607310bSBenjamin Close 			break;
47696607310bSBenjamin Close 		DELAY(10);
47706607310bSBenjamin Close 	}
47716607310bSBenjamin Close 	if (ntries == 5000) {
4772692ad7caSAdrian Chadd 		device_printf(sc->sc_dev, "timeout selecting power source\n");
47736607310bSBenjamin Close 		return ETIMEDOUT;
47746607310bSBenjamin Close 	}
4775692ad7caSAdrian Chadd 
4776692ad7caSAdrian Chadd 	/* Perform adapter initialization. */
4777692ad7caSAdrian Chadd 	wpi_nic_config(sc);
4778692ad7caSAdrian Chadd 
4779692ad7caSAdrian Chadd 	/* Initialize RX ring. */
4780692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4781692ad7caSAdrian Chadd 		return error;
4782692ad7caSAdrian Chadd 	/* Set physical address of RX ring. */
4783692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_RX_BASE, sc->rxq.desc_dma.paddr);
4784692ad7caSAdrian Chadd 	/* Set physical address of RX read pointer. */
4785692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_RX_RPTR_ADDR, sc->shared_dma.paddr +
4786692ad7caSAdrian Chadd 	    offsetof(struct wpi_shared, next));
4787692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_RX_WPTR, 0);
4788692ad7caSAdrian Chadd 	/* Enable RX. */
4789692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_RX_CONFIG,
4790692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_DMA_ENA |
4791692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_RDRBD_ENA |
4792692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_WRSTATUS_ENA |
4793692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_MAXFRAG |
4794692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_NRBD(WPI_RX_RING_COUNT_LOG) |
4795692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_IRQ_DST_HOST |
4796692ad7caSAdrian Chadd 	    WPI_FH_RX_CONFIG_IRQ_TIMEOUT(1));
4797692ad7caSAdrian Chadd 	(void)WPI_READ(sc, WPI_FH_RSSR_TBL);	/* barrier */
4798692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4799692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_RX_WPTR, (WPI_RX_RING_COUNT - 1) & ~7);
4800692ad7caSAdrian Chadd 
4801692ad7caSAdrian Chadd 	/* Initialize TX rings. */
4802692ad7caSAdrian Chadd 	if ((error = wpi_nic_lock(sc)) != 0)
4803692ad7caSAdrian Chadd 		return error;
4804692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 2);	/* bypass mode */
4805692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_ARASTAT, 1);	/* enable RA0 */
4806692ad7caSAdrian Chadd 	/* Enable all 6 TX rings. */
4807692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0x3f);
4808692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE1, 0x10000);
4809692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE2, 0x30002);
4810692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_TXF4MF, 4);
4811692ad7caSAdrian Chadd 	wpi_prph_write(sc, WPI_ALM_SCHED_TXF5MF, 5);
4812692ad7caSAdrian Chadd 	/* Set physical address of TX rings. */
4813692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_TX_BASE, sc->shared_dma.paddr);
4814692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_MSG_CONFIG, 0xffff05a5);
4815692ad7caSAdrian Chadd 
4816692ad7caSAdrian Chadd 	/* Enable all DMA channels. */
4817692ad7caSAdrian Chadd 	for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
4818692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_FH_CBBC_CTRL(chnl), 0);
4819692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_FH_CBBC_BASE(chnl), 0);
4820692ad7caSAdrian Chadd 		WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0x80200008);
4821692ad7caSAdrian Chadd 	}
4822692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
4823692ad7caSAdrian Chadd 	(void)WPI_READ(sc, WPI_FH_TX_BASE);	/* barrier */
4824692ad7caSAdrian Chadd 
4825692ad7caSAdrian Chadd 	/* Clear "radio off" and "commands blocked" bits. */
4826692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
4827692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_CMD_BLOCKED);
4828692ad7caSAdrian Chadd 
4829692ad7caSAdrian Chadd 	/* Clear pending interrupts. */
4830692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT, 0xffffffff);
4831692ad7caSAdrian Chadd 	/* Enable interrupts. */
4832692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF);
4833692ad7caSAdrian Chadd 
4834692ad7caSAdrian Chadd 	/* _Really_ make sure "radio off" bit is cleared! */
4835692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
4836692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL);
4837692ad7caSAdrian Chadd 
4838692ad7caSAdrian Chadd 	if ((error = wpi_load_firmware(sc)) != 0) {
4839692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4840692ad7caSAdrian Chadd 		    "%s: could not load firmware, error %d\n", __func__,
4841692ad7caSAdrian Chadd 		    error);
4842692ad7caSAdrian Chadd 		return error;
4843692ad7caSAdrian Chadd 	}
4844692ad7caSAdrian Chadd 	/* Wait at most one second for firmware alive notification. */
484576fdf7ebSAdrian Chadd 	if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
4846692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4847692ad7caSAdrian Chadd 		    "%s: timeout waiting for adapter to initialize, error %d\n",
4848692ad7caSAdrian Chadd 		    __func__, error);
4849692ad7caSAdrian Chadd 		return error;
48506607310bSBenjamin Close 	}
48516607310bSBenjamin Close 
4852692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
4853692ad7caSAdrian Chadd 
4854692ad7caSAdrian Chadd 	/* Do post-firmware initialization. */
4855692ad7caSAdrian Chadd 	return wpi_post_alive(sc);
4856692ad7caSAdrian Chadd }
4857692ad7caSAdrian Chadd 
4858692ad7caSAdrian Chadd static void
4859692ad7caSAdrian Chadd wpi_hw_stop(struct wpi_softc *sc)
48606607310bSBenjamin Close {
4861692ad7caSAdrian Chadd 	int chnl, qid, ntries;
48626607310bSBenjamin Close 
4863692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
48646607310bSBenjamin Close 
4865692ad7caSAdrian Chadd 	if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP)
4866692ad7caSAdrian Chadd 		wpi_nic_lock(sc);
48676607310bSBenjamin Close 
4868692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_RESET, WPI_RESET_NEVO);
48696607310bSBenjamin Close 
4870692ad7caSAdrian Chadd 	/* Disable interrupts. */
4871692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT_MASK, 0);
4872692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_INT, 0xffffffff);
4873692ad7caSAdrian Chadd 	WPI_WRITE(sc, WPI_FH_INT, 0xffffffff);
48746607310bSBenjamin Close 
4875692ad7caSAdrian Chadd 	/* Make sure we no longer hold the NIC lock. */
4876692ad7caSAdrian Chadd 	wpi_nic_unlock(sc);
48776607310bSBenjamin Close 
4878692ad7caSAdrian Chadd 	if (wpi_nic_lock(sc) == 0) {
4879692ad7caSAdrian Chadd 		/* Stop TX scheduler. */
4880692ad7caSAdrian Chadd 		wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 0);
4881692ad7caSAdrian Chadd 		wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0);
4882692ad7caSAdrian Chadd 
4883692ad7caSAdrian Chadd 		/* Stop all DMA channels. */
4884692ad7caSAdrian Chadd 		for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) {
4885692ad7caSAdrian Chadd 			WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0);
4886692ad7caSAdrian Chadd 			for (ntries = 0; ntries < 200; ntries++) {
4887692ad7caSAdrian Chadd 				if (WPI_READ(sc, WPI_FH_TX_STATUS) &
4888692ad7caSAdrian Chadd 				    WPI_FH_TX_STATUS_IDLE(chnl))
48896607310bSBenjamin Close 					break;
48906607310bSBenjamin Close 				DELAY(10);
48916607310bSBenjamin Close 			}
4892692ad7caSAdrian Chadd 		}
4893692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
48946607310bSBenjamin Close 	}
48956607310bSBenjamin Close 
4896692ad7caSAdrian Chadd 	/* Stop RX ring. */
4897692ad7caSAdrian Chadd 	wpi_reset_rx_ring(sc);
48986607310bSBenjamin Close 
4899692ad7caSAdrian Chadd 	/* Reset all TX rings. */
4900692ad7caSAdrian Chadd 	for (qid = 0; qid < WPI_NTXQUEUES; qid++)
4901692ad7caSAdrian Chadd 		wpi_reset_tx_ring(sc, &sc->txq[qid]);
4902692ad7caSAdrian Chadd 
4903692ad7caSAdrian Chadd 	if (wpi_nic_lock(sc) == 0) {
4904692ad7caSAdrian Chadd 		wpi_prph_write(sc, WPI_APMG_CLK_DIS,
4905692ad7caSAdrian Chadd 		    WPI_APMG_CLK_CTRL_DMA_CLK_RQT);
4906692ad7caSAdrian Chadd 		wpi_nic_unlock(sc);
49076607310bSBenjamin Close 	}
4908692ad7caSAdrian Chadd 	DELAY(5);
4909692ad7caSAdrian Chadd 	/* Power OFF adapter. */
4910692ad7caSAdrian Chadd 	wpi_apm_stop(sc);
49116607310bSBenjamin Close }
49126607310bSBenjamin Close 
49136607310bSBenjamin Close static void
4914692ad7caSAdrian Chadd wpi_radio_on(void *arg0, int pending)
49156607310bSBenjamin Close {
4916692ad7caSAdrian Chadd 	struct wpi_softc *sc = arg0;
491782f1b132SAndrew Thompson 	struct ifnet *ifp = sc->sc_ifp;
4918b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
4919b032f27cSSam Leffler 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
492082f1b132SAndrew Thompson 
4921692ad7caSAdrian Chadd 	device_printf(sc->sc_dev, "RF switch: radio enabled\n");
492282f1b132SAndrew Thompson 
4923b032f27cSSam Leffler 	if (vap != NULL) {
4924692ad7caSAdrian Chadd 		wpi_init(sc);
4925692ad7caSAdrian Chadd 		ieee80211_init(vap);
492682f1b132SAndrew Thompson 	}
492782f1b132SAndrew Thompson 
4928692ad7caSAdrian Chadd 	if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL) {
4929692ad7caSAdrian Chadd 		WPI_LOCK(sc);
4930692ad7caSAdrian Chadd 		callout_stop(&sc->watchdog_rfkill);
4931692ad7caSAdrian Chadd 		WPI_UNLOCK(sc);
4932692ad7caSAdrian Chadd 	}
493382f1b132SAndrew Thompson }
493482f1b132SAndrew Thompson 
493582f1b132SAndrew Thompson static void
4936692ad7caSAdrian Chadd wpi_radio_off(void *arg0, int pending)
4937692ad7caSAdrian Chadd {
4938692ad7caSAdrian Chadd 	struct wpi_softc *sc = arg0;
4939692ad7caSAdrian Chadd 	struct ifnet *ifp = sc->sc_ifp;
4940692ad7caSAdrian Chadd 	struct ieee80211com *ic = ifp->if_l2com;
4941692ad7caSAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4942692ad7caSAdrian Chadd 
4943692ad7caSAdrian Chadd 	device_printf(sc->sc_dev, "RF switch: radio disabled\n");
4944692ad7caSAdrian Chadd 
4945692ad7caSAdrian Chadd 	wpi_stop(sc);
4946692ad7caSAdrian Chadd 	if (vap != NULL)
4947692ad7caSAdrian Chadd 		ieee80211_stop(vap);
4948692ad7caSAdrian Chadd 
4949811fe0a8SAdrian Chadd 	WPI_LOCK(sc);
4950692ad7caSAdrian Chadd 	callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, sc);
4951811fe0a8SAdrian Chadd 	WPI_UNLOCK(sc);
4952692ad7caSAdrian Chadd }
4953692ad7caSAdrian Chadd 
4954692ad7caSAdrian Chadd static void
4955692ad7caSAdrian Chadd wpi_init_locked(struct wpi_softc *sc)
495682f1b132SAndrew Thompson {
4957b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
4958692ad7caSAdrian Chadd 	int error;
49596607310bSBenjamin Close 
4960692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__);
49616607310bSBenjamin Close 
4962692ad7caSAdrian Chadd 	WPI_LOCK_ASSERT(sc);
49636607310bSBenjamin Close 
4964692ad7caSAdrian Chadd 	/* Check that the radio is not disabled by hardware switch. */
4965692ad7caSAdrian Chadd 	if (!(WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL)) {
49666607310bSBenjamin Close 		device_printf(sc->sc_dev,
4967692ad7caSAdrian Chadd 		    "RF switch: radio disabled (%s)\n", __func__);
4968692ad7caSAdrian Chadd 		callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill,
4969692ad7caSAdrian Chadd 		    sc);
49706607310bSBenjamin Close 		return;
49716607310bSBenjamin Close 	}
49726607310bSBenjamin Close 
4973692ad7caSAdrian Chadd 	/* Read firmware images from the filesystem. */
4974692ad7caSAdrian Chadd 	if ((error = wpi_read_firmware(sc)) != 0) {
49756607310bSBenjamin Close 		device_printf(sc->sc_dev,
4976692ad7caSAdrian Chadd 		    "%s: could not read firmware, error %d\n", __func__,
4977692ad7caSAdrian Chadd 		    error);
4978692ad7caSAdrian Chadd 		goto fail;
49796607310bSBenjamin Close 	}
49806607310bSBenjamin Close 
4981692ad7caSAdrian Chadd 	/* Initialize hardware and upload firmware. */
4982692ad7caSAdrian Chadd 	error = wpi_hw_init(sc);
4983692ad7caSAdrian Chadd 	wpi_unload_firmware(sc);
4984692ad7caSAdrian Chadd 	if (error != 0) {
4985692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4986692ad7caSAdrian Chadd 		    "%s: could not initialize hardware, error %d\n", __func__,
4987692ad7caSAdrian Chadd 		    error);
4988692ad7caSAdrian Chadd 		goto fail;
4989692ad7caSAdrian Chadd 	}
4990692ad7caSAdrian Chadd 
4991692ad7caSAdrian Chadd 	/* Configure adapter now that it is ready. */
499263f57699SAdrian Chadd 	sc->txq_active = 1;
4993692ad7caSAdrian Chadd 	if ((error = wpi_config(sc)) != 0) {
4994692ad7caSAdrian Chadd 		device_printf(sc->sc_dev,
4995692ad7caSAdrian Chadd 		    "%s: could not configure device, error %d\n", __func__,
4996692ad7caSAdrian Chadd 		    error);
4997692ad7caSAdrian Chadd 		goto fail;
499882f1b132SAndrew Thompson 	}
499982f1b132SAndrew Thompson 
50006607310bSBenjamin Close 	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
50016607310bSBenjamin Close 	ifp->if_drv_flags |= IFF_DRV_RUNNING;
5002692ad7caSAdrian Chadd 
500382f1b132SAndrew Thompson 	callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
5004692ad7caSAdrian Chadd 
5005692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__);
5006692ad7caSAdrian Chadd 
5007692ad7caSAdrian Chadd 	return;
5008692ad7caSAdrian Chadd 
5009692ad7caSAdrian Chadd fail:	wpi_stop_locked(sc);
5010692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__);
50116607310bSBenjamin Close }
50126607310bSBenjamin Close 
50136607310bSBenjamin Close static void
5014b032f27cSSam Leffler wpi_init(void *arg)
50156607310bSBenjamin Close {
5016b032f27cSSam Leffler 	struct wpi_softc *sc = arg;
5017b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
5018b032f27cSSam Leffler 	struct ieee80211com *ic = ifp->if_l2com;
50196607310bSBenjamin Close 
50206607310bSBenjamin Close 	WPI_LOCK(sc);
5021692ad7caSAdrian Chadd 	wpi_init_locked(sc);
50226607310bSBenjamin Close 	WPI_UNLOCK(sc);
50236607310bSBenjamin Close 
5024b032f27cSSam Leffler 	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
5025692ad7caSAdrian Chadd 		ieee80211_start_all(ic);
50266607310bSBenjamin Close }
5027b032f27cSSam Leffler 
50286607310bSBenjamin Close static void
50296607310bSBenjamin Close wpi_stop_locked(struct wpi_softc *sc)
50306607310bSBenjamin Close {
5031b032f27cSSam Leffler 	struct ifnet *ifp = sc->sc_ifp;
50326607310bSBenjamin Close 
5033692ad7caSAdrian Chadd 	WPI_LOCK_ASSERT(sc);
5034692ad7caSAdrian Chadd 
503563f57699SAdrian Chadd 	WPI_TXQ_LOCK(sc);
503663f57699SAdrian Chadd 	sc->txq_active = 0;
503763f57699SAdrian Chadd 	WPI_TXQ_UNLOCK(sc);
503863f57699SAdrian Chadd 
503982f1b132SAndrew Thompson 	sc->sc_scan_timer = 0;
5040692ad7caSAdrian Chadd 	sc->sc_tx_timer = 0;
504182f1b132SAndrew Thompson 	callout_stop(&sc->watchdog_to);
504282f1b132SAndrew Thompson 	callout_stop(&sc->calib_to);
5043692ad7caSAdrian Chadd 	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
504482f1b132SAndrew Thompson 
5045692ad7caSAdrian Chadd 	/* Power OFF hardware. */
5046692ad7caSAdrian Chadd 	wpi_hw_stop(sc);
50476607310bSBenjamin Close }
50486607310bSBenjamin Close 
50496607310bSBenjamin Close static void
5050b032f27cSSam Leffler wpi_stop(struct wpi_softc *sc)
50516607310bSBenjamin Close {
5052b032f27cSSam Leffler 	WPI_LOCK(sc);
5053b032f27cSSam Leffler 	wpi_stop_locked(sc);
5054b032f27cSSam Leffler 	WPI_UNLOCK(sc);
50556607310bSBenjamin Close }
50566607310bSBenjamin Close 
50576607310bSBenjamin Close /*
5058692ad7caSAdrian Chadd  * Callback from net80211 to start a scan.
50596607310bSBenjamin Close  */
50606607310bSBenjamin Close static void
50616607310bSBenjamin Close wpi_scan_start(struct ieee80211com *ic)
50626607310bSBenjamin Close {
5063f319a41cSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
50646607310bSBenjamin Close 
50655efea30fSAndrew Thompson 	wpi_set_led(sc, WPI_LED_LINK, 20, 2);
50666607310bSBenjamin Close }
50676607310bSBenjamin Close 
5068692ad7caSAdrian Chadd /*
5069692ad7caSAdrian Chadd  * Callback from net80211 to terminate a scan.
50706607310bSBenjamin Close  */
50716607310bSBenjamin Close static void
50726607310bSBenjamin Close wpi_scan_end(struct ieee80211com *ic)
50736607310bSBenjamin Close {
5074692ad7caSAdrian Chadd 	struct ifnet *ifp = ic->ic_ifp;
5075692ad7caSAdrian Chadd 	struct wpi_softc *sc = ifp->if_softc;
5076692ad7caSAdrian Chadd 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
5077692ad7caSAdrian Chadd 
50780b093122SAdrian Chadd 	if (vap->iv_state == IEEE80211_S_RUN)
5079692ad7caSAdrian Chadd 		wpi_set_led(sc, WPI_LED_LINK, 0, 1);
50806607310bSBenjamin Close }
50816607310bSBenjamin Close 
50826607310bSBenjamin Close /**
50836607310bSBenjamin Close  * Called by the net80211 framework to indicate to the driver
50846607310bSBenjamin Close  * that the channel should be changed
50856607310bSBenjamin Close  */
50866607310bSBenjamin Close static void
50876607310bSBenjamin Close wpi_set_channel(struct ieee80211com *ic)
50886607310bSBenjamin Close {
5089692ad7caSAdrian Chadd 	const struct ieee80211_channel *c = ic->ic_curchan;
50906607310bSBenjamin Close 	struct ifnet *ifp = ic->ic_ifp;
50916607310bSBenjamin Close 	struct wpi_softc *sc = ifp->if_softc;
50925efea30fSAndrew Thompson 	int error;
50936607310bSBenjamin Close 
5094692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
5095692ad7caSAdrian Chadd 
5096692ad7caSAdrian Chadd 	WPI_LOCK(sc);
5097692ad7caSAdrian Chadd 	sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
5098692ad7caSAdrian Chadd 	sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
5099692ad7caSAdrian Chadd 	sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
5100692ad7caSAdrian Chadd 	sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
5101692ad7caSAdrian Chadd 
510282f1b132SAndrew Thompson 	/*
510382f1b132SAndrew Thompson 	 * Only need to set the channel in Monitor mode. AP scanning and auth
510482f1b132SAndrew Thompson 	 * are already taken care of by their respective firmware commands.
510582f1b132SAndrew Thompson 	 */
51065efea30fSAndrew Thompson 	if (ic->ic_opmode == IEEE80211_M_MONITOR) {
5107692ad7caSAdrian Chadd 		sc->rxon.chan = ieee80211_chan2ieee(ic, c);
5108692ad7caSAdrian Chadd 		if (IEEE80211_IS_CHAN_2GHZ(c)) {
5109692ad7caSAdrian Chadd 			sc->rxon.flags |= htole32(WPI_RXON_AUTO |
5110692ad7caSAdrian Chadd 			    WPI_RXON_24GHZ);
5111692ad7caSAdrian Chadd 		} else {
5112692ad7caSAdrian Chadd 			sc->rxon.flags &= ~htole32(WPI_RXON_AUTO |
5113692ad7caSAdrian Chadd 			    WPI_RXON_24GHZ);
51145efea30fSAndrew Thompson 		}
5115692ad7caSAdrian Chadd 		if ((error = wpi_send_rxon(sc, 0, 0)) != 0)
5116692ad7caSAdrian Chadd 			device_printf(sc->sc_dev,
5117692ad7caSAdrian Chadd 			    "%s: error %d settting channel\n", __func__,
5118692ad7caSAdrian Chadd 			    error);
5119692ad7caSAdrian Chadd 	}
5120692ad7caSAdrian Chadd 	WPI_UNLOCK(sc);
51216607310bSBenjamin Close }
51226607310bSBenjamin Close 
51236607310bSBenjamin Close /**
51246607310bSBenjamin Close  * Called by net80211 to indicate that we need to scan the current
51256607310bSBenjamin Close  * channel. The channel is previously be set via the wpi_set_channel
51266607310bSBenjamin Close  * callback.
51276607310bSBenjamin Close  */
51286607310bSBenjamin Close static void
5129b032f27cSSam Leffler wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
51306607310bSBenjamin Close {
5131b032f27cSSam Leffler 	struct ieee80211vap *vap = ss->ss_vap;
5132692ad7caSAdrian Chadd 	struct ieee80211com *ic = vap->iv_ic;
5133f319a41cSAdrian Chadd 	struct wpi_softc *sc = ic->ic_ifp->if_softc;
5134692ad7caSAdrian Chadd 	int error;
51356607310bSBenjamin Close 
5136692ad7caSAdrian Chadd 	if (sc->rxon.chan != ieee80211_chan2ieee(ic, ic->ic_curchan)) {
51375efea30fSAndrew Thompson 		WPI_LOCK(sc);
5138692ad7caSAdrian Chadd 		error = wpi_scan(sc, ic->ic_curchan);
51395efea30fSAndrew Thompson 		WPI_UNLOCK(sc);
5140692ad7caSAdrian Chadd 		if (error != 0)
5141692ad7caSAdrian Chadd 			ieee80211_cancel_scan(vap);
5142692ad7caSAdrian Chadd 	} else {
5143692ad7caSAdrian Chadd 		/* Send probe request when associated. */
5144692ad7caSAdrian Chadd 		sc->sc_scan_curchan(ss, maxdwell);
5145692ad7caSAdrian Chadd 	}
51466607310bSBenjamin Close }
51476607310bSBenjamin Close 
51486607310bSBenjamin Close /**
51496607310bSBenjamin Close  * Called by the net80211 framework to indicate
51506607310bSBenjamin Close  * the minimum dwell time has been met, terminate the scan.
51516607310bSBenjamin Close  * We don't actually terminate the scan as the firmware will notify
51526607310bSBenjamin Close  * us when it's finished and we have no way to interrupt it.
51536607310bSBenjamin Close  */
51546607310bSBenjamin Close static void
5155b032f27cSSam Leffler wpi_scan_mindwell(struct ieee80211_scan_state *ss)
51566607310bSBenjamin Close {
51576607310bSBenjamin Close 	/* NB: don't try to abort scan; wait for firmware to finish */
51586607310bSBenjamin Close }
51596607310bSBenjamin Close 
51606607310bSBenjamin Close static void
5161692ad7caSAdrian Chadd wpi_hw_reset(void *arg, int pending)
51626607310bSBenjamin Close {
51636607310bSBenjamin Close 	struct wpi_softc *sc = arg;
516482f1b132SAndrew Thompson 	struct ifnet *ifp = sc->sc_ifp;
51655efea30fSAndrew Thompson 	struct ieee80211com *ic = ifp->if_l2com;
5166b032f27cSSam Leffler 	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
516782f1b132SAndrew Thompson 
5168692ad7caSAdrian Chadd 	DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__);
51696607310bSBenjamin Close 
5170692ad7caSAdrian Chadd 	wpi_stop(sc);
5171692ad7caSAdrian Chadd 	if (vap != NULL)
5172692ad7caSAdrian Chadd 		ieee80211_stop(vap);
5173692ad7caSAdrian Chadd 	wpi_init(sc);
5174692ad7caSAdrian Chadd 	if (vap != NULL)
5175692ad7caSAdrian Chadd 		ieee80211_init(vap);
51766607310bSBenjamin Close }
5177