1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 * redistribution must be conditioned upon including a substantially
16 * similar Disclaimer requirement for further binary redistribution.
17 *
18 * NO WARRANTY
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
30 */
31
32 #include <sys/cdefs.h>
33 /*
34 * Driver for the Atheros Wireless LAN controller.
35 *
36 * This software is derived from work of Atsushi Onoe; his contribution
37 * is greatly appreciated.
38 */
39
40 #include "opt_inet.h"
41 #include "opt_ath.h"
42 /*
43 * This is needed for register operations which are performed
44 * by the driver - eg, calls to ath_hal_gettsf32().
45 */
46 #include "opt_ah.h"
47 #include "opt_wlan.h"
48
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/sysctl.h>
52 #include <sys/mbuf.h>
53 #include <sys/malloc.h>
54 #include <sys/lock.h>
55 #include <sys/mutex.h>
56 #include <sys/kernel.h>
57 #include <sys/socket.h>
58 #include <sys/sockio.h>
59 #include <sys/errno.h>
60 #include <sys/callout.h>
61 #include <sys/bus.h>
62 #include <sys/endian.h>
63 #include <sys/kthread.h>
64 #include <sys/taskqueue.h>
65 #include <sys/priv.h>
66 #include <sys/module.h>
67 #include <sys/ktr.h>
68 #include <sys/smp.h> /* for mp_ncpus */
69
70 #include <machine/bus.h>
71
72 #include <net/if.h>
73 #include <net/if_dl.h>
74 #include <net/if_media.h>
75 #include <net/if_types.h>
76 #include <net/if_arp.h>
77 #include <net/ethernet.h>
78 #include <net/if_llc.h>
79 #include <net/if_var.h>
80
81 #include <net80211/ieee80211_var.h>
82 #include <net80211/ieee80211_regdomain.h>
83 #ifdef IEEE80211_SUPPORT_SUPERG
84 #include <net80211/ieee80211_superg.h>
85 #endif
86 #ifdef IEEE80211_SUPPORT_TDMA
87 #include <net80211/ieee80211_tdma.h>
88 #endif
89
90 #include <net/bpf.h>
91
92 #ifdef INET
93 #include <netinet/in.h>
94 #include <netinet/if_ether.h>
95 #endif
96
97 #include <dev/ath/if_athvar.h>
98 #include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */
99 #include <dev/ath/ath_hal/ah_diagcodes.h>
100
101 #include <dev/ath/if_ath_debug.h>
102 #include <dev/ath/if_ath_misc.h>
103
104 #include <dev/ath/if_ath_led.h>
105
106 /*
107 * Software LED driver routines.
108 */
109
110 /*
111 * XXX TODO: move the LED sysctls here.
112 */
113
114 /*
115 * Configure the hardware for software and LED blinking.
116 * The user may choose to configure part of each, depending upon the
117 * NIC being used.
118 *
119 * This requires the configuration to be set before this function
120 * is called.
121 */
122 void
ath_led_config(struct ath_softc * sc)123 ath_led_config(struct ath_softc *sc)
124 {
125
126 ATH_LOCK(sc);
127 ath_power_set_power_state(sc, HAL_PM_AWAKE);
128 ATH_UNLOCK(sc);
129
130 /* Software LED blinking - GPIO controlled LED */
131 if (sc->sc_softled) {
132 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
133 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT);
134 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
135 }
136
137 /* Hardware LED blinking - MAC controlled LED */
138 if (sc->sc_hardled) {
139 /*
140 * Only enable each LED if required.
141 *
142 * Some NICs only have one LED connected; others may
143 * have GPIO1/GPIO2 connected to other hardware.
144 */
145 if (sc->sc_led_pwr_pin > 0)
146 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin,
147 HAL_GPIO_OUTPUT_MUX_MAC_POWER_LED);
148 if (sc->sc_led_net_pin > 0)
149 ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin,
150 HAL_GPIO_OUTPUT_MUX_MAC_NETWORK_LED);
151 }
152
153 ATH_LOCK(sc);
154 ath_power_restore_power_state(sc);
155 ATH_UNLOCK(sc);
156 }
157
158 static void
ath_led_done(void * arg)159 ath_led_done(void *arg)
160 {
161 struct ath_softc *sc = arg;
162
163 sc->sc_blinking = 0;
164 }
165
166 /*
167 * Turn the LED off: flip the pin and then set a timer so no
168 * update will happen for the specified duration.
169 */
170 static void
ath_led_off(void * arg)171 ath_led_off(void *arg)
172 {
173 struct ath_softc *sc = arg;
174
175 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
176 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, ath_led_done, sc);
177 }
178
179 /*
180 * Blink the LED according to the specified on/off times.
181 */
182 static void
ath_led_blink(struct ath_softc * sc,int on,int off)183 ath_led_blink(struct ath_softc *sc, int on, int off)
184 {
185 DPRINTF(sc, ATH_DEBUG_LED, "%s: on %u off %u\n", __func__, on, off);
186 ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, sc->sc_ledon);
187 sc->sc_blinking = 1;
188 sc->sc_ledoff = off;
189 callout_reset(&sc->sc_ledtimer, on, ath_led_off, sc);
190 }
191
192 void
ath_led_event(struct ath_softc * sc,int rix)193 ath_led_event(struct ath_softc *sc, int rix)
194 {
195 sc->sc_ledevent = ticks; /* time of last event */
196 if (sc->sc_blinking) /* don't interrupt active blink */
197 return;
198 ath_led_blink(sc, sc->sc_hwmap[rix].ledon, sc->sc_hwmap[rix].ledoff);
199 }
200