1 2 /*- 3 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 4 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 5 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 6 * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 /*- 23 * Ralink Technology RT2501USB/RT2601USB chipset driver 24 * http://www.ralinktech.com.tw/ 25 */ 26 27 #include "opt_wlan.h" 28 29 #include <sys/param.h> 30 #include <sys/sockio.h> 31 #include <sys/sysctl.h> 32 #include <sys/lock.h> 33 #include <sys/mutex.h> 34 #include <sys/mbuf.h> 35 #include <sys/kernel.h> 36 #include <sys/socket.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/module.h> 40 #include <sys/bus.h> 41 #include <sys/endian.h> 42 #include <sys/kdb.h> 43 44 #include <net/bpf.h> 45 #include <net/if.h> 46 #include <net/if_var.h> 47 #include <net/if_arp.h> 48 #include <net/ethernet.h> 49 #include <net/if_dl.h> 50 #include <net/if_media.h> 51 #include <net/if_types.h> 52 53 #ifdef INET 54 #include <netinet/in.h> 55 #include <netinet/in_systm.h> 56 #include <netinet/in_var.h> 57 #include <netinet/if_ether.h> 58 #include <netinet/ip.h> 59 #endif 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_regdomain.h> 63 #include <net80211/ieee80211_radiotap.h> 64 #include <net80211/ieee80211_ratectl.h> 65 66 #include <dev/usb/usb.h> 67 #include <dev/usb/usbdi.h> 68 #include "usbdevs.h" 69 70 #define USB_DEBUG_VAR rum_debug 71 #include <dev/usb/usb_debug.h> 72 73 #include <dev/usb/wlan/if_rumreg.h> 74 #include <dev/usb/wlan/if_rumvar.h> 75 #include <dev/usb/wlan/if_rumfw.h> 76 77 #ifdef USB_DEBUG 78 static int rum_debug = 0; 79 80 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 81 "USB rum"); 82 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 83 "Debug level"); 84 #endif 85 86 static const STRUCT_USB_HOST_ID rum_devs[] = { 87 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 88 RUM_DEV(ABOCOM, HWU54DM), 89 RUM_DEV(ABOCOM, RT2573_2), 90 RUM_DEV(ABOCOM, RT2573_3), 91 RUM_DEV(ABOCOM, RT2573_4), 92 RUM_DEV(ABOCOM, WUG2700), 93 RUM_DEV(AMIT, CGWLUSB2GO), 94 RUM_DEV(ASUS, RT2573_1), 95 RUM_DEV(ASUS, RT2573_2), 96 RUM_DEV(BELKIN, F5D7050A), 97 RUM_DEV(BELKIN, F5D9050V3), 98 RUM_DEV(CISCOLINKSYS, WUSB54GC), 99 RUM_DEV(CISCOLINKSYS, WUSB54GR), 100 RUM_DEV(CONCEPTRONIC2, C54RU2), 101 RUM_DEV(COREGA, CGWLUSB2GL), 102 RUM_DEV(COREGA, CGWLUSB2GPX), 103 RUM_DEV(DICKSMITH, CWD854F), 104 RUM_DEV(DICKSMITH, RT2573), 105 RUM_DEV(EDIMAX, EW7318USG), 106 RUM_DEV(DLINK2, DWLG122C1), 107 RUM_DEV(DLINK2, WUA1340), 108 RUM_DEV(DLINK2, DWA111), 109 RUM_DEV(DLINK2, DWA110), 110 RUM_DEV(GIGABYTE, GNWB01GS), 111 RUM_DEV(GIGABYTE, GNWI05GS), 112 RUM_DEV(GIGASET, RT2573), 113 RUM_DEV(GOODWAY, RT2573), 114 RUM_DEV(GUILLEMOT, HWGUSB254LB), 115 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 116 RUM_DEV(HUAWEI3COM, WUB320G), 117 RUM_DEV(MELCO, G54HP), 118 RUM_DEV(MELCO, SG54HP), 119 RUM_DEV(MELCO, SG54HG), 120 RUM_DEV(MELCO, WLIUCG), 121 RUM_DEV(MELCO, WLRUCG), 122 RUM_DEV(MELCO, WLRUCGAOSS), 123 RUM_DEV(MSI, RT2573_1), 124 RUM_DEV(MSI, RT2573_2), 125 RUM_DEV(MSI, RT2573_3), 126 RUM_DEV(MSI, RT2573_4), 127 RUM_DEV(NOVATECH, RT2573), 128 RUM_DEV(PLANEX2, GWUS54HP), 129 RUM_DEV(PLANEX2, GWUS54MINI2), 130 RUM_DEV(PLANEX2, GWUSMM), 131 RUM_DEV(QCOM, RT2573), 132 RUM_DEV(QCOM, RT2573_2), 133 RUM_DEV(QCOM, RT2573_3), 134 RUM_DEV(RALINK, RT2573), 135 RUM_DEV(RALINK, RT2573_2), 136 RUM_DEV(RALINK, RT2671), 137 RUM_DEV(SITECOMEU, WL113R2), 138 RUM_DEV(SITECOMEU, WL172), 139 RUM_DEV(SPARKLAN, RT2573), 140 RUM_DEV(SURECOM, RT2573), 141 #undef RUM_DEV 142 }; 143 144 static device_probe_t rum_match; 145 static device_attach_t rum_attach; 146 static device_detach_t rum_detach; 147 148 static usb_callback_t rum_bulk_read_callback; 149 static usb_callback_t rum_bulk_write_callback; 150 151 static usb_error_t rum_do_request(struct rum_softc *sc, 152 struct usb_device_request *req, void *data); 153 static usb_error_t rum_do_mcu_request(struct rum_softc *sc, int); 154 static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 155 const char [IFNAMSIZ], int, enum ieee80211_opmode, 156 int, const uint8_t [IEEE80211_ADDR_LEN], 157 const uint8_t [IEEE80211_ADDR_LEN]); 158 static void rum_vap_delete(struct ieee80211vap *); 159 static void rum_cmdq_cb(void *, int); 160 static int rum_cmd_sleepable(struct rum_softc *, const void *, 161 size_t, uint8_t, CMD_FUNC_PROTO); 162 static void rum_tx_free(struct rum_tx_data *, int); 163 static void rum_setup_tx_list(struct rum_softc *); 164 static void rum_reset_tx_list(struct rum_softc *, 165 struct ieee80211vap *); 166 static void rum_unsetup_tx_list(struct rum_softc *); 167 static void rum_beacon_miss(struct ieee80211vap *); 168 static void rum_sta_recv_mgmt(struct ieee80211_node *, 169 struct mbuf *, int, 170 const struct ieee80211_rx_stats *, int, int); 171 static int rum_set_power_state(struct rum_softc *, int); 172 static int rum_newstate(struct ieee80211vap *, 173 enum ieee80211_state, int); 174 static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 175 static void rum_setup_tx_desc(struct rum_softc *, 176 struct rum_tx_desc *, struct ieee80211_key *, 177 uint32_t, uint8_t, uint8_t, int, int, int); 178 static uint32_t rum_tx_crypto_flags(struct rum_softc *, 179 struct ieee80211_node *, 180 const struct ieee80211_key *); 181 static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 182 struct ieee80211_node *); 183 static int rum_tx_raw(struct rum_softc *, struct mbuf *, 184 struct ieee80211_node *, 185 const struct ieee80211_bpf_params *); 186 static int rum_tx_data(struct rum_softc *, struct mbuf *, 187 struct ieee80211_node *); 188 static int rum_transmit(struct ieee80211com *, struct mbuf *); 189 static void rum_start(struct rum_softc *); 190 static void rum_parent(struct ieee80211com *); 191 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 192 int); 193 static uint32_t rum_read(struct rum_softc *, uint16_t); 194 static void rum_read_multi(struct rum_softc *, uint16_t, void *, 195 int); 196 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 197 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 198 size_t); 199 static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 200 static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 201 static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 202 uint32_t); 203 static int rum_bbp_busy(struct rum_softc *); 204 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 205 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 206 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 207 static void rum_select_antenna(struct rum_softc *); 208 static void rum_enable_mrr(struct rum_softc *); 209 static void rum_set_txpreamble(struct rum_softc *); 210 static void rum_set_basicrates(struct rum_softc *); 211 static void rum_select_band(struct rum_softc *, 212 struct ieee80211_channel *); 213 static void rum_set_chan(struct rum_softc *, 214 struct ieee80211_channel *); 215 static void rum_set_maxretry(struct rum_softc *, 216 struct ieee80211vap *); 217 static int rum_enable_tsf_sync(struct rum_softc *); 218 static void rum_enable_tsf(struct rum_softc *); 219 static void rum_abort_tsf_sync(struct rum_softc *); 220 static void rum_get_tsf(struct rum_softc *, uint64_t *); 221 static void rum_update_slot_cb(struct rum_softc *, 222 union sec_param *, uint8_t); 223 static void rum_update_slot(struct ieee80211com *); 224 static int rum_wme_update(struct ieee80211com *); 225 static void rum_set_bssid(struct rum_softc *, const uint8_t *); 226 static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 227 static void rum_update_mcast(struct ieee80211com *); 228 static void rum_update_promisc(struct ieee80211com *); 229 static void rum_setpromisc(struct rum_softc *); 230 static const char *rum_get_rf(int); 231 static void rum_read_eeprom(struct rum_softc *); 232 static int rum_bbp_wakeup(struct rum_softc *); 233 static int rum_bbp_init(struct rum_softc *); 234 static void rum_clr_shkey_regs(struct rum_softc *); 235 static int rum_init(struct rum_softc *); 236 static void rum_stop(struct rum_softc *); 237 static void rum_load_microcode(struct rum_softc *, const uint8_t *, 238 size_t); 239 static int rum_set_sleep_time(struct rum_softc *, uint16_t); 240 static int rum_reset(struct ieee80211vap *, u_long); 241 static int rum_set_beacon(struct rum_softc *, 242 struct ieee80211vap *); 243 static int rum_alloc_beacon(struct rum_softc *, 244 struct ieee80211vap *); 245 static void rum_update_beacon_cb(struct rum_softc *, 246 union sec_param *, uint8_t); 247 static void rum_update_beacon(struct ieee80211vap *, int); 248 static int rum_common_key_set(struct rum_softc *, 249 struct ieee80211_key *, uint16_t); 250 static void rum_group_key_set_cb(struct rum_softc *, 251 union sec_param *, uint8_t); 252 static void rum_group_key_del_cb(struct rum_softc *, 253 union sec_param *, uint8_t); 254 static void rum_pair_key_set_cb(struct rum_softc *, 255 union sec_param *, uint8_t); 256 static void rum_pair_key_del_cb(struct rum_softc *, 257 union sec_param *, uint8_t); 258 static int rum_key_alloc(struct ieee80211vap *, 259 struct ieee80211_key *, ieee80211_keyix *, 260 ieee80211_keyix *); 261 static int rum_key_set(struct ieee80211vap *, 262 const struct ieee80211_key *); 263 static int rum_key_delete(struct ieee80211vap *, 264 const struct ieee80211_key *); 265 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 266 const struct ieee80211_bpf_params *); 267 static void rum_scan_start(struct ieee80211com *); 268 static void rum_scan_end(struct ieee80211com *); 269 static void rum_set_channel(struct ieee80211com *); 270 static void rum_getradiocaps(struct ieee80211com *, int, int *, 271 struct ieee80211_channel[]); 272 static int rum_get_rssi(struct rum_softc *, uint8_t); 273 static void rum_ratectl_start(struct rum_softc *, 274 struct ieee80211_node *); 275 static void rum_ratectl_timeout(void *); 276 static void rum_ratectl_task(void *, int); 277 static int rum_pause(struct rum_softc *, int); 278 279 static const struct { 280 uint32_t reg; 281 uint32_t val; 282 } rum_def_mac[] = { 283 { RT2573_TXRX_CSR0, 0x025fb032 }, 284 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 285 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 286 { RT2573_TXRX_CSR3, 0x00858687 }, 287 { RT2573_TXRX_CSR7, 0x2e31353b }, 288 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 289 { RT2573_TXRX_CSR15, 0x0000000f }, 290 { RT2573_MAC_CSR6, 0x00000fff }, 291 { RT2573_MAC_CSR8, 0x016c030a }, 292 { RT2573_MAC_CSR10, 0x00000718 }, 293 { RT2573_MAC_CSR12, 0x00000004 }, 294 { RT2573_MAC_CSR13, 0x00007f00 }, 295 { RT2573_SEC_CSR2, 0x00000000 }, 296 { RT2573_SEC_CSR3, 0x00000000 }, 297 { RT2573_SEC_CSR4, 0x00000000 }, 298 { RT2573_PHY_CSR1, 0x000023b0 }, 299 { RT2573_PHY_CSR5, 0x00040a06 }, 300 { RT2573_PHY_CSR6, 0x00080606 }, 301 { RT2573_PHY_CSR7, 0x00000408 }, 302 { RT2573_AIFSN_CSR, 0x00002273 }, 303 { RT2573_CWMIN_CSR, 0x00002344 }, 304 { RT2573_CWMAX_CSR, 0x000034aa } 305 }; 306 307 static const struct { 308 uint8_t reg; 309 uint8_t val; 310 } rum_def_bbp[] = { 311 { 3, 0x80 }, 312 { 15, 0x30 }, 313 { 17, 0x20 }, 314 { 21, 0xc8 }, 315 { 22, 0x38 }, 316 { 23, 0x06 }, 317 { 24, 0xfe }, 318 { 25, 0x0a }, 319 { 26, 0x0d }, 320 { 32, 0x0b }, 321 { 34, 0x12 }, 322 { 37, 0x07 }, 323 { 39, 0xf8 }, 324 { 41, 0x60 }, 325 { 53, 0x10 }, 326 { 54, 0x18 }, 327 { 60, 0x10 }, 328 { 61, 0x04 }, 329 { 62, 0x04 }, 330 { 75, 0xfe }, 331 { 86, 0xfe }, 332 { 88, 0xfe }, 333 { 90, 0x0f }, 334 { 99, 0x00 }, 335 { 102, 0x16 }, 336 { 107, 0x04 } 337 }; 338 339 static const uint8_t rum_chan_5ghz[] = 340 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64, 341 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 342 149, 153, 157, 161, 165 }; 343 344 static const struct rfprog { 345 uint8_t chan; 346 uint32_t r1, r2, r3, r4; 347 } rum_rf5226[] = { 348 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 349 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 350 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 351 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 352 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 353 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 354 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 355 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 356 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 357 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 358 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 359 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 360 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 361 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 362 363 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 364 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 365 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 366 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 367 368 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 369 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 370 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 371 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 372 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 373 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 374 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 375 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 376 377 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 378 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 379 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 380 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 381 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 382 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 383 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 384 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 385 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 386 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 387 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 388 389 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 390 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 391 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 392 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 393 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 394 }, rum_rf5225[] = { 395 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 396 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 397 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 398 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 399 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 400 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 401 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 402 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 403 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 404 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 405 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 406 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 407 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 408 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 409 410 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 411 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 412 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 413 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 414 415 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 416 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 417 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 418 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 419 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 420 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 421 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 422 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 423 424 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 425 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 426 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 427 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 428 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 429 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 430 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 431 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 432 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 433 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 434 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 435 436 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 437 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 438 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 439 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 440 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 441 }; 442 443 static const struct usb_config rum_config[RUM_N_TRANSFER] = { 444 [RUM_BULK_WR] = { 445 .type = UE_BULK, 446 .endpoint = UE_ADDR_ANY, 447 .direction = UE_DIR_OUT, 448 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 449 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 450 .callback = rum_bulk_write_callback, 451 .timeout = 5000, /* ms */ 452 }, 453 [RUM_BULK_RD] = { 454 .type = UE_BULK, 455 .endpoint = UE_ADDR_ANY, 456 .direction = UE_DIR_IN, 457 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 458 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 459 .callback = rum_bulk_read_callback, 460 }, 461 }; 462 463 static int 464 rum_match(device_t self) 465 { 466 struct usb_attach_arg *uaa = device_get_ivars(self); 467 468 if (uaa->usb_mode != USB_MODE_HOST) 469 return (ENXIO); 470 if (uaa->info.bConfigIndex != 0) 471 return (ENXIO); 472 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 473 return (ENXIO); 474 475 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 476 } 477 478 static int 479 rum_attach(device_t self) 480 { 481 struct usb_attach_arg *uaa = device_get_ivars(self); 482 struct rum_softc *sc = device_get_softc(self); 483 struct ieee80211com *ic = &sc->sc_ic; 484 uint32_t tmp; 485 uint8_t iface_index; 486 int error, ntries; 487 488 device_set_usb_desc(self); 489 sc->sc_udev = uaa->device; 490 sc->sc_dev = self; 491 492 RUM_LOCK_INIT(sc); 493 RUM_CMDQ_LOCK_INIT(sc); 494 mbufq_init(&sc->sc_snd, ifqmaxlen); 495 496 iface_index = RT2573_IFACE_INDEX; 497 error = usbd_transfer_setup(uaa->device, &iface_index, 498 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 499 if (error) { 500 device_printf(self, "could not allocate USB transfers, " 501 "err=%s\n", usbd_errstr(error)); 502 goto detach; 503 } 504 505 RUM_LOCK(sc); 506 /* retrieve RT2573 rev. no */ 507 for (ntries = 0; ntries < 100; ntries++) { 508 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 509 break; 510 if (rum_pause(sc, hz / 100)) 511 break; 512 } 513 if (ntries == 100) { 514 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 515 RUM_UNLOCK(sc); 516 goto detach; 517 } 518 519 /* retrieve MAC address and various other things from EEPROM */ 520 rum_read_eeprom(sc); 521 522 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 523 tmp, rum_get_rf(sc->rf_rev)); 524 525 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 526 RUM_UNLOCK(sc); 527 528 ic->ic_softc = sc; 529 ic->ic_name = device_get_nameunit(self); 530 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 531 532 /* set device capabilities */ 533 ic->ic_caps = 534 IEEE80211_C_STA /* station mode supported */ 535 | IEEE80211_C_IBSS /* IBSS mode supported */ 536 | IEEE80211_C_MONITOR /* monitor mode supported */ 537 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 538 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 539 | IEEE80211_C_TXPMGT /* tx power management */ 540 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 541 | IEEE80211_C_SHSLOT /* short slot time supported */ 542 | IEEE80211_C_BGSCAN /* bg scanning supported */ 543 | IEEE80211_C_WPA /* 802.11i */ 544 | IEEE80211_C_WME /* 802.11e */ 545 | IEEE80211_C_PMGT /* Station-side power mgmt */ 546 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */ 547 ; 548 549 ic->ic_cryptocaps = 550 IEEE80211_CRYPTO_WEP | 551 IEEE80211_CRYPTO_AES_CCM | 552 IEEE80211_CRYPTO_TKIPMIC | 553 IEEE80211_CRYPTO_TKIP; 554 555 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 556 ic->ic_channels); 557 558 ieee80211_ifattach(ic); 559 ic->ic_update_promisc = rum_update_promisc; 560 ic->ic_raw_xmit = rum_raw_xmit; 561 ic->ic_scan_start = rum_scan_start; 562 ic->ic_scan_end = rum_scan_end; 563 ic->ic_set_channel = rum_set_channel; 564 ic->ic_getradiocaps = rum_getradiocaps; 565 ic->ic_transmit = rum_transmit; 566 ic->ic_parent = rum_parent; 567 ic->ic_vap_create = rum_vap_create; 568 ic->ic_vap_delete = rum_vap_delete; 569 ic->ic_updateslot = rum_update_slot; 570 ic->ic_wme.wme_update = rum_wme_update; 571 ic->ic_update_mcast = rum_update_mcast; 572 573 ieee80211_radiotap_attach(ic, 574 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 575 RT2573_TX_RADIOTAP_PRESENT, 576 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 577 RT2573_RX_RADIOTAP_PRESENT); 578 579 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 580 581 if (bootverbose) 582 ieee80211_announce(ic); 583 584 return (0); 585 586 detach: 587 rum_detach(self); 588 return (ENXIO); /* failure */ 589 } 590 591 static int 592 rum_detach(device_t self) 593 { 594 struct rum_softc *sc = device_get_softc(self); 595 struct ieee80211com *ic = &sc->sc_ic; 596 597 /* Prevent further ioctls */ 598 RUM_LOCK(sc); 599 sc->sc_detached = 1; 600 RUM_UNLOCK(sc); 601 602 /* stop all USB transfers */ 603 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 604 605 /* free TX list, if any */ 606 RUM_LOCK(sc); 607 rum_unsetup_tx_list(sc); 608 RUM_UNLOCK(sc); 609 610 if (ic->ic_softc == sc) { 611 ieee80211_draintask(ic, &sc->cmdq_task); 612 ieee80211_ifdetach(ic); 613 } 614 615 mbufq_drain(&sc->sc_snd); 616 RUM_CMDQ_LOCK_DESTROY(sc); 617 RUM_LOCK_DESTROY(sc); 618 619 return (0); 620 } 621 622 static usb_error_t 623 rum_do_request(struct rum_softc *sc, 624 struct usb_device_request *req, void *data) 625 { 626 usb_error_t err; 627 int ntries = 10; 628 629 while (ntries--) { 630 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 631 req, data, 0, NULL, 250 /* ms */); 632 if (err == 0) 633 break; 634 635 DPRINTFN(1, "Control request failed, %s (retrying)\n", 636 usbd_errstr(err)); 637 if (rum_pause(sc, hz / 100)) 638 break; 639 } 640 return (err); 641 } 642 643 static usb_error_t 644 rum_do_mcu_request(struct rum_softc *sc, int request) 645 { 646 struct usb_device_request req; 647 648 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 649 req.bRequest = RT2573_MCU_CNTL; 650 USETW(req.wValue, request); 651 USETW(req.wIndex, 0); 652 USETW(req.wLength, 0); 653 654 return (rum_do_request(sc, &req, NULL)); 655 } 656 657 static struct ieee80211vap * 658 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 659 enum ieee80211_opmode opmode, int flags, 660 const uint8_t bssid[IEEE80211_ADDR_LEN], 661 const uint8_t mac[IEEE80211_ADDR_LEN]) 662 { 663 struct rum_softc *sc = ic->ic_softc; 664 struct rum_vap *rvp; 665 struct ieee80211vap *vap; 666 667 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 668 return NULL; 669 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 670 vap = &rvp->vap; 671 /* enable s/w bmiss handling for sta mode */ 672 673 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 674 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 675 /* out of memory */ 676 free(rvp, M_80211_VAP); 677 return (NULL); 678 } 679 680 /* override state transition machine */ 681 rvp->newstate = vap->iv_newstate; 682 vap->iv_newstate = rum_newstate; 683 vap->iv_key_alloc = rum_key_alloc; 684 vap->iv_key_set = rum_key_set; 685 vap->iv_key_delete = rum_key_delete; 686 vap->iv_update_beacon = rum_update_beacon; 687 vap->iv_reset = rum_reset; 688 vap->iv_max_aid = RT2573_ADDR_MAX; 689 690 if (opmode == IEEE80211_M_STA) { 691 /* 692 * Move device to the sleep state when 693 * beacon is received and there is no data for us. 694 * 695 * Used only for IEEE80211_S_SLEEP state. 696 */ 697 rvp->recv_mgmt = vap->iv_recv_mgmt; 698 vap->iv_recv_mgmt = rum_sta_recv_mgmt; 699 700 /* Ignored while sleeping. */ 701 rvp->bmiss = vap->iv_bmiss; 702 vap->iv_bmiss = rum_beacon_miss; 703 } 704 705 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 706 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 707 ieee80211_ratectl_init(vap); 708 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 709 /* complete setup */ 710 ieee80211_vap_attach(vap, ieee80211_media_change, 711 ieee80211_media_status, mac); 712 ic->ic_opmode = opmode; 713 return vap; 714 } 715 716 static void 717 rum_vap_delete(struct ieee80211vap *vap) 718 { 719 struct rum_vap *rvp = RUM_VAP(vap); 720 struct ieee80211com *ic = vap->iv_ic; 721 struct rum_softc *sc = ic->ic_softc; 722 723 /* Put vap into INIT state. */ 724 ieee80211_new_state(vap, IEEE80211_S_INIT, -1); 725 ieee80211_draintask(ic, &vap->iv_nstate_task); 726 727 RUM_LOCK(sc); 728 /* Cancel any unfinished Tx. */ 729 rum_reset_tx_list(sc, vap); 730 RUM_UNLOCK(sc); 731 732 usb_callout_drain(&rvp->ratectl_ch); 733 ieee80211_draintask(ic, &rvp->ratectl_task); 734 ieee80211_ratectl_deinit(vap); 735 ieee80211_vap_detach(vap); 736 m_freem(rvp->bcn_mbuf); 737 free(rvp, M_80211_VAP); 738 } 739 740 static void 741 rum_cmdq_cb(void *arg, int pending) 742 { 743 struct rum_softc *sc = arg; 744 struct rum_cmdq *rc; 745 746 RUM_CMDQ_LOCK(sc); 747 while (sc->cmdq[sc->cmdq_first].func != NULL) { 748 rc = &sc->cmdq[sc->cmdq_first]; 749 RUM_CMDQ_UNLOCK(sc); 750 751 RUM_LOCK(sc); 752 rc->func(sc, &rc->data, rc->rvp_id); 753 RUM_UNLOCK(sc); 754 755 RUM_CMDQ_LOCK(sc); 756 memset(rc, 0, sizeof (*rc)); 757 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 758 } 759 RUM_CMDQ_UNLOCK(sc); 760 } 761 762 static int 763 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 764 uint8_t rvp_id, CMD_FUNC_PROTO) 765 { 766 struct ieee80211com *ic = &sc->sc_ic; 767 768 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 769 770 RUM_CMDQ_LOCK(sc); 771 if (sc->cmdq[sc->cmdq_last].func != NULL) { 772 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 773 RUM_CMDQ_UNLOCK(sc); 774 775 return EAGAIN; 776 } 777 778 if (ptr != NULL) 779 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 780 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 781 sc->cmdq[sc->cmdq_last].func = func; 782 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 783 RUM_CMDQ_UNLOCK(sc); 784 785 ieee80211_runtask(ic, &sc->cmdq_task); 786 787 return 0; 788 } 789 790 static void 791 rum_tx_free(struct rum_tx_data *data, int txerr) 792 { 793 struct rum_softc *sc = data->sc; 794 795 if (data->m != NULL) { 796 ieee80211_tx_complete(data->ni, data->m, txerr); 797 data->m = NULL; 798 data->ni = NULL; 799 } 800 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 801 sc->tx_nfree++; 802 } 803 804 static void 805 rum_setup_tx_list(struct rum_softc *sc) 806 { 807 struct rum_tx_data *data; 808 int i; 809 810 sc->tx_nfree = 0; 811 STAILQ_INIT(&sc->tx_q); 812 STAILQ_INIT(&sc->tx_free); 813 814 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 815 data = &sc->tx_data[i]; 816 817 data->sc = sc; 818 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 819 sc->tx_nfree++; 820 } 821 } 822 823 static void 824 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap) 825 { 826 struct rum_tx_data *data, *tmp; 827 828 KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__)); 829 830 STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) { 831 if (data->ni != NULL && data->ni->ni_vap == vap) { 832 ieee80211_free_node(data->ni); 833 data->ni = NULL; 834 835 KASSERT(data->m != NULL, ("%s: m is NULL\n", 836 __func__)); 837 m_freem(data->m); 838 data->m = NULL; 839 840 STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next); 841 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 842 sc->tx_nfree++; 843 } 844 } 845 } 846 847 static void 848 rum_unsetup_tx_list(struct rum_softc *sc) 849 { 850 struct rum_tx_data *data; 851 int i; 852 853 /* make sure any subsequent use of the queues will fail */ 854 sc->tx_nfree = 0; 855 STAILQ_INIT(&sc->tx_q); 856 STAILQ_INIT(&sc->tx_free); 857 858 /* free up all node references and mbufs */ 859 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 860 data = &sc->tx_data[i]; 861 862 if (data->m != NULL) { 863 m_freem(data->m); 864 data->m = NULL; 865 } 866 if (data->ni != NULL) { 867 ieee80211_free_node(data->ni); 868 data->ni = NULL; 869 } 870 } 871 } 872 873 static void 874 rum_beacon_miss(struct ieee80211vap *vap) 875 { 876 struct ieee80211com *ic = vap->iv_ic; 877 struct rum_softc *sc = ic->ic_softc; 878 struct rum_vap *rvp = RUM_VAP(vap); 879 int sleep; 880 881 RUM_LOCK(sc); 882 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) { 883 DPRINTFN(12, "dropping 'sleeping' bit, " 884 "device must be awake now\n"); 885 886 sc->sc_sleeping = 0; 887 } 888 889 sleep = sc->sc_sleeping; 890 RUM_UNLOCK(sc); 891 892 if (!sleep) 893 rvp->bmiss(vap); 894 #ifdef USB_DEBUG 895 else 896 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n"); 897 #endif 898 } 899 900 static void 901 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, 902 const struct ieee80211_rx_stats *rxs, 903 int rssi, int nf) 904 { 905 struct ieee80211vap *vap = ni->ni_vap; 906 struct rum_softc *sc = vap->iv_ic->ic_softc; 907 struct rum_vap *rvp = RUM_VAP(vap); 908 909 if (vap->iv_state == IEEE80211_S_SLEEP && 910 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 911 RUM_LOCK(sc); 912 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n", 913 !!(sc->last_rx_flags & RT2573_RX_MYBSS), 914 sc->last_rx_flags); 915 916 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) == 917 (RT2573_RX_MYBSS | RT2573_RX_BC)) { 918 /* 919 * Put it to sleep here; in case if there is a data 920 * for us, iv_recv_mgmt() will wakeup the device via 921 * SLEEP -> RUN state transition. 922 */ 923 rum_set_power_state(sc, 1); 924 } 925 RUM_UNLOCK(sc); 926 } 927 928 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf); 929 } 930 931 static int 932 rum_set_power_state(struct rum_softc *sc, int sleep) 933 { 934 usb_error_t uerror; 935 936 RUM_LOCK_ASSERT(sc); 937 938 DPRINTFN(12, "moving to %s state (sleep time %u)\n", 939 sleep ? "sleep" : "awake", sc->sc_sleep_time); 940 941 uerror = rum_do_mcu_request(sc, 942 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP); 943 if (uerror != USB_ERR_NORMAL_COMPLETION) { 944 device_printf(sc->sc_dev, 945 "%s: could not change power state: %s\n", 946 __func__, usbd_errstr(uerror)); 947 return (EIO); 948 } 949 950 sc->sc_sleeping = !!sleep; 951 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0; 952 953 return (0); 954 } 955 956 static int 957 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 958 { 959 struct rum_vap *rvp = RUM_VAP(vap); 960 struct ieee80211com *ic = vap->iv_ic; 961 struct rum_softc *sc = ic->ic_softc; 962 const struct ieee80211_txparam *tp; 963 enum ieee80211_state ostate; 964 struct ieee80211_node *ni; 965 usb_error_t uerror; 966 int ret = 0; 967 968 ostate = vap->iv_state; 969 DPRINTF("%s -> %s\n", 970 ieee80211_state_name[ostate], 971 ieee80211_state_name[nstate]); 972 973 IEEE80211_UNLOCK(ic); 974 RUM_LOCK(sc); 975 usb_callout_stop(&rvp->ratectl_ch); 976 977 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) { 978 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 979 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 980 981 /* 982 * Ignore any errors; 983 * any subsequent TX will wakeup it anyway 984 */ 985 (void) rum_set_power_state(sc, 0); 986 } 987 988 switch (nstate) { 989 case IEEE80211_S_INIT: 990 if (ostate == IEEE80211_S_RUN) 991 rum_abort_tsf_sync(sc); 992 993 break; 994 995 case IEEE80211_S_RUN: 996 if (ostate == IEEE80211_S_SLEEP) 997 break; /* already handled */ 998 999 ni = ieee80211_ref_node(vap->iv_bss); 1000 1001 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 1002 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 1003 ni->ni_chan == IEEE80211_CHAN_ANYC) { 1004 ret = EINVAL; 1005 goto run_fail; 1006 } 1007 rum_update_slot_cb(sc, NULL, 0); 1008 rum_enable_mrr(sc); 1009 rum_set_txpreamble(sc); 1010 rum_set_basicrates(sc); 1011 rum_set_maxretry(sc, vap); 1012 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 1013 rum_set_bssid(sc, sc->sc_bssid); 1014 } 1015 1016 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 1017 vap->iv_opmode == IEEE80211_M_IBSS) { 1018 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 1019 goto run_fail; 1020 } 1021 1022 if (vap->iv_opmode != IEEE80211_M_MONITOR && 1023 vap->iv_opmode != IEEE80211_M_AHDEMO) { 1024 if ((ret = rum_enable_tsf_sync(sc)) != 0) 1025 goto run_fail; 1026 } else 1027 rum_enable_tsf(sc); 1028 1029 /* enable automatic rate adaptation */ 1030 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1031 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 1032 rum_ratectl_start(sc, ni); 1033 run_fail: 1034 ieee80211_free_node(ni); 1035 break; 1036 case IEEE80211_S_SLEEP: 1037 /* Implemented for STA mode only. */ 1038 if (vap->iv_opmode != IEEE80211_M_STA) 1039 break; 1040 1041 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 1042 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1043 ret = EIO; 1044 break; 1045 } 1046 1047 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 1048 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1049 ret = EIO; 1050 break; 1051 } 1052 1053 ret = rum_set_power_state(sc, 1); 1054 if (ret != 0) { 1055 device_printf(sc->sc_dev, 1056 "%s: could not move to the SLEEP state: %s\n", 1057 __func__, usbd_errstr(uerror)); 1058 } 1059 break; 1060 default: 1061 break; 1062 } 1063 RUM_UNLOCK(sc); 1064 IEEE80211_LOCK(ic); 1065 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret); 1066 } 1067 1068 static void 1069 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1070 { 1071 struct rum_softc *sc = usbd_xfer_softc(xfer); 1072 struct ieee80211vap *vap; 1073 struct rum_tx_data *data; 1074 struct mbuf *m; 1075 struct usb_page_cache *pc; 1076 unsigned len; 1077 int actlen, sumlen; 1078 1079 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 1080 1081 switch (USB_GET_STATE(xfer)) { 1082 case USB_ST_TRANSFERRED: 1083 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 1084 1085 /* free resources */ 1086 data = usbd_xfer_get_priv(xfer); 1087 rum_tx_free(data, 0); 1088 usbd_xfer_set_priv(xfer, NULL); 1089 1090 /* FALLTHROUGH */ 1091 case USB_ST_SETUP: 1092 tr_setup: 1093 data = STAILQ_FIRST(&sc->tx_q); 1094 if (data) { 1095 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 1096 m = data->m; 1097 1098 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 1099 DPRINTFN(0, "data overflow, %u bytes\n", 1100 m->m_pkthdr.len); 1101 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 1102 } 1103 pc = usbd_xfer_get_frame(xfer, 0); 1104 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 1105 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 1106 m->m_pkthdr.len); 1107 1108 vap = data->ni->ni_vap; 1109 if (ieee80211_radiotap_active_vap(vap)) { 1110 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1111 1112 tap->wt_flags = 0; 1113 tap->wt_rate = data->rate; 1114 tap->wt_antenna = sc->tx_ant; 1115 1116 ieee80211_radiotap_tx(vap, m); 1117 } 1118 1119 /* align end on a 4-bytes boundary */ 1120 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 1121 if ((len % 64) == 0) 1122 len += 4; 1123 1124 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 1125 m->m_pkthdr.len, len); 1126 1127 usbd_xfer_set_frame_len(xfer, 0, len); 1128 usbd_xfer_set_priv(xfer, data); 1129 1130 usbd_transfer_submit(xfer); 1131 } 1132 rum_start(sc); 1133 break; 1134 1135 default: /* Error */ 1136 DPRINTFN(11, "transfer error, %s\n", 1137 usbd_errstr(error)); 1138 1139 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 1140 data = usbd_xfer_get_priv(xfer); 1141 if (data != NULL) { 1142 rum_tx_free(data, error); 1143 usbd_xfer_set_priv(xfer, NULL); 1144 } 1145 1146 if (error != USB_ERR_CANCELLED) { 1147 if (error == USB_ERR_TIMEOUT) 1148 device_printf(sc->sc_dev, "device timeout\n"); 1149 1150 /* 1151 * Try to clear stall first, also if other 1152 * errors occur, hence clearing stall 1153 * introduces a 50 ms delay: 1154 */ 1155 usbd_xfer_set_stall(xfer); 1156 goto tr_setup; 1157 } 1158 break; 1159 } 1160 } 1161 1162 static void 1163 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1164 { 1165 struct rum_softc *sc = usbd_xfer_softc(xfer); 1166 struct ieee80211com *ic = &sc->sc_ic; 1167 struct ieee80211_frame_min *wh; 1168 struct ieee80211_node *ni; 1169 struct mbuf *m = NULL; 1170 struct usb_page_cache *pc; 1171 uint32_t flags; 1172 uint8_t rssi = 0; 1173 int len; 1174 1175 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1176 1177 switch (USB_GET_STATE(xfer)) { 1178 case USB_ST_TRANSFERRED: 1179 1180 DPRINTFN(15, "rx done, actlen=%d\n", len); 1181 1182 if (len < RT2573_RX_DESC_SIZE) { 1183 DPRINTF("%s: xfer too short %d\n", 1184 device_get_nameunit(sc->sc_dev), len); 1185 counter_u64_add(ic->ic_ierrors, 1); 1186 goto tr_setup; 1187 } 1188 1189 len -= RT2573_RX_DESC_SIZE; 1190 pc = usbd_xfer_get_frame(xfer, 0); 1191 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1192 1193 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1194 flags = le32toh(sc->sc_rx_desc.flags); 1195 sc->last_rx_flags = flags; 1196 if (len < ((flags >> 16) & 0xfff)) { 1197 DPRINTFN(5, "%s: frame is truncated from %d to %d " 1198 "bytes\n", device_get_nameunit(sc->sc_dev), 1199 (flags >> 16) & 0xfff, len); 1200 counter_u64_add(ic->ic_ierrors, 1); 1201 goto tr_setup; 1202 } 1203 len = (flags >> 16) & 0xfff; 1204 if (len < sizeof(struct ieee80211_frame_ack)) { 1205 DPRINTFN(5, "%s: frame too short %d\n", 1206 device_get_nameunit(sc->sc_dev), len); 1207 counter_u64_add(ic->ic_ierrors, 1); 1208 goto tr_setup; 1209 } 1210 if (flags & RT2573_RX_CRC_ERROR) { 1211 /* 1212 * This should not happen since we did not 1213 * request to receive those frames when we 1214 * filled RUM_TXRX_CSR2: 1215 */ 1216 DPRINTFN(5, "PHY or CRC error\n"); 1217 counter_u64_add(ic->ic_ierrors, 1); 1218 goto tr_setup; 1219 } 1220 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1221 switch (flags & RT2573_RX_DEC_MASK) { 1222 case RT2573_RX_IV_ERROR: 1223 DPRINTFN(5, "IV/EIV error\n"); 1224 break; 1225 case RT2573_RX_MIC_ERROR: 1226 DPRINTFN(5, "MIC error\n"); 1227 break; 1228 case RT2573_RX_KEY_ERROR: 1229 DPRINTFN(5, "Key error\n"); 1230 break; 1231 } 1232 counter_u64_add(ic->ic_ierrors, 1); 1233 goto tr_setup; 1234 } 1235 1236 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR); 1237 if (m == NULL) { 1238 DPRINTF("could not allocate mbuf\n"); 1239 counter_u64_add(ic->ic_ierrors, 1); 1240 goto tr_setup; 1241 } 1242 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1243 mtod(m, uint8_t *), len); 1244 1245 wh = mtod(m, struct ieee80211_frame_min *); 1246 1247 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1248 (flags & RT2573_RX_CIP_MASK) != 1249 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1250 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1251 m->m_flags |= M_WEP; 1252 } 1253 1254 /* finalize mbuf */ 1255 m->m_pkthdr.len = m->m_len = len; 1256 1257 if (ieee80211_radiotap_active(ic)) { 1258 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1259 1260 tap->wr_flags = 0; 1261 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1262 (flags & RT2573_RX_OFDM) ? 1263 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1264 rum_get_tsf(sc, &tap->wr_tsf); 1265 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1266 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1267 tap->wr_antenna = sc->rx_ant; 1268 } 1269 /* FALLTHROUGH */ 1270 case USB_ST_SETUP: 1271 tr_setup: 1272 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1273 usbd_transfer_submit(xfer); 1274 1275 /* 1276 * At the end of a USB callback it is always safe to unlock 1277 * the private mutex of a device! That is why we do the 1278 * "ieee80211_input" here, and not some lines up! 1279 */ 1280 RUM_UNLOCK(sc); 1281 if (m) { 1282 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1283 ni = ieee80211_find_rxnode(ic, wh); 1284 else 1285 ni = NULL; 1286 1287 if (ni != NULL) { 1288 (void) ieee80211_input(ni, m, rssi, 1289 RT2573_NOISE_FLOOR); 1290 ieee80211_free_node(ni); 1291 } else 1292 (void) ieee80211_input_all(ic, m, rssi, 1293 RT2573_NOISE_FLOOR); 1294 } 1295 RUM_LOCK(sc); 1296 rum_start(sc); 1297 return; 1298 1299 default: /* Error */ 1300 if (error != USB_ERR_CANCELLED) { 1301 /* try to clear stall first */ 1302 usbd_xfer_set_stall(xfer); 1303 goto tr_setup; 1304 } 1305 return; 1306 } 1307 } 1308 1309 static uint8_t 1310 rum_plcp_signal(int rate) 1311 { 1312 switch (rate) { 1313 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1314 case 12: return 0xb; 1315 case 18: return 0xf; 1316 case 24: return 0xa; 1317 case 36: return 0xe; 1318 case 48: return 0x9; 1319 case 72: return 0xd; 1320 case 96: return 0x8; 1321 case 108: return 0xc; 1322 1323 /* CCK rates (NB: not IEEE std, device-specific) */ 1324 case 2: return 0x0; 1325 case 4: return 0x1; 1326 case 11: return 0x2; 1327 case 22: return 0x3; 1328 } 1329 return 0xff; /* XXX unsupported/unknown rate */ 1330 } 1331 1332 /* 1333 * Map net80211 cipher to RT2573 security mode. 1334 */ 1335 static uint8_t 1336 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1337 { 1338 switch (cipher) { 1339 case IEEE80211_CIPHER_WEP: 1340 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1341 case IEEE80211_CIPHER_TKIP: 1342 return RT2573_MODE_TKIP; 1343 case IEEE80211_CIPHER_AES_CCM: 1344 return RT2573_MODE_AES_CCMP; 1345 default: 1346 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1347 return 0; 1348 } 1349 } 1350 1351 static void 1352 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1353 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1354 int hdrlen, int len, int rate) 1355 { 1356 struct ieee80211com *ic = &sc->sc_ic; 1357 struct wmeParams *wmep = &sc->wme_params[qid]; 1358 uint16_t plcp_length; 1359 int remainder; 1360 1361 flags |= RT2573_TX_VALID; 1362 flags |= len << 16; 1363 1364 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1365 const struct ieee80211_cipher *cip = k->wk_cipher; 1366 1367 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1368 1369 desc->eiv = 0; /* for WEP */ 1370 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1371 } 1372 1373 /* setup PLCP fields */ 1374 desc->plcp_signal = rum_plcp_signal(rate); 1375 desc->plcp_service = 4; 1376 1377 len += IEEE80211_CRC_LEN; 1378 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1379 flags |= RT2573_TX_OFDM; 1380 1381 plcp_length = len & 0xfff; 1382 desc->plcp_length_hi = plcp_length >> 6; 1383 desc->plcp_length_lo = plcp_length & 0x3f; 1384 } else { 1385 if (rate == 0) 1386 rate = 2; /* avoid division by zero */ 1387 plcp_length = howmany(16 * len, rate); 1388 if (rate == 22) { 1389 remainder = (16 * len) % 22; 1390 if (remainder != 0 && remainder < 7) 1391 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1392 } 1393 desc->plcp_length_hi = plcp_length >> 8; 1394 desc->plcp_length_lo = plcp_length & 0xff; 1395 1396 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1397 desc->plcp_signal |= 0x08; 1398 } 1399 1400 desc->flags = htole32(flags); 1401 desc->hdrlen = hdrlen; 1402 desc->xflags = xflags; 1403 1404 desc->wme = htole16(RT2573_QID(qid) | 1405 RT2573_AIFSN(wmep->wmep_aifsn) | 1406 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1407 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1408 } 1409 1410 static int 1411 rum_sendprot(struct rum_softc *sc, 1412 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1413 { 1414 struct ieee80211com *ic = ni->ni_ic; 1415 struct rum_tx_data *data; 1416 struct mbuf *mprot; 1417 int protrate, flags; 1418 1419 RUM_LOCK_ASSERT(sc); 1420 1421 mprot = ieee80211_alloc_prot(ni, m, rate, prot); 1422 if (mprot == NULL) { 1423 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1); 1424 device_printf(sc->sc_dev, 1425 "could not allocate mbuf for protection mode %d\n", prot); 1426 return (ENOBUFS); 1427 } 1428 1429 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1430 flags = 0; 1431 if (prot == IEEE80211_PROT_RTSCTS) 1432 flags |= RT2573_TX_NEED_ACK; 1433 1434 data = STAILQ_FIRST(&sc->tx_free); 1435 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1436 sc->tx_nfree--; 1437 1438 data->m = mprot; 1439 data->ni = ieee80211_ref_node(ni); 1440 data->rate = protrate; 1441 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1442 mprot->m_pkthdr.len, protrate); 1443 1444 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1445 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1446 1447 return 0; 1448 } 1449 1450 static uint32_t 1451 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1452 const struct ieee80211_key *k) 1453 { 1454 struct ieee80211vap *vap = ni->ni_vap; 1455 u_int cipher; 1456 uint32_t flags = 0; 1457 uint8_t mode, pos; 1458 1459 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1460 cipher = k->wk_cipher->ic_cipher; 1461 pos = k->wk_keyix; 1462 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1463 if (mode == 0) 1464 return 0; 1465 1466 flags |= RT2573_TX_CIP_MODE(mode); 1467 1468 /* Do not trust GROUP flag */ 1469 if (!(k >= &vap->iv_nw_keys[0] && 1470 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1471 flags |= RT2573_TX_KEY_PAIR; 1472 else 1473 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1474 1475 flags |= RT2573_TX_KEY_ID(pos); 1476 1477 if (cipher == IEEE80211_CIPHER_TKIP) 1478 flags |= RT2573_TX_TKIPMIC; 1479 } 1480 1481 return flags; 1482 } 1483 1484 static int 1485 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1486 { 1487 const struct ieee80211_txparam *tp = ni->ni_txparms; 1488 struct ieee80211com *ic = &sc->sc_ic; 1489 struct rum_tx_data *data; 1490 struct ieee80211_frame *wh; 1491 struct ieee80211_key *k = NULL; 1492 uint32_t flags = 0; 1493 uint16_t dur; 1494 uint8_t ac, type, xflags = 0; 1495 int hdrlen; 1496 1497 RUM_LOCK_ASSERT(sc); 1498 1499 data = STAILQ_FIRST(&sc->tx_free); 1500 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1501 sc->tx_nfree--; 1502 1503 wh = mtod(m0, struct ieee80211_frame *); 1504 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1505 hdrlen = ieee80211_anyhdrsize(wh); 1506 ac = M_WME_GETAC(m0); 1507 1508 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1509 k = ieee80211_crypto_get_txkey(ni, m0); 1510 if (k == NULL) 1511 return (ENOENT); 1512 1513 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1514 !k->wk_cipher->ic_encap(k, m0)) 1515 return (ENOBUFS); 1516 1517 wh = mtod(m0, struct ieee80211_frame *); 1518 } 1519 1520 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1521 flags |= RT2573_TX_NEED_ACK; 1522 1523 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1524 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1525 USETW(wh->i_dur, dur); 1526 1527 /* tell hardware to add timestamp for probe responses */ 1528 if (type == IEEE80211_FC0_TYPE_MGT && 1529 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1530 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1531 flags |= RT2573_TX_TIMESTAMP; 1532 } 1533 1534 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1535 xflags |= RT2573_TX_HWSEQ; 1536 1537 if (k != NULL) 1538 flags |= rum_tx_crypto_flags(sc, ni, k); 1539 1540 data->m = m0; 1541 data->ni = ni; 1542 data->rate = tp->mgmtrate; 1543 1544 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1545 m0->m_pkthdr.len, tp->mgmtrate); 1546 1547 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1548 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1549 1550 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1551 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1552 1553 return (0); 1554 } 1555 1556 static int 1557 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1558 const struct ieee80211_bpf_params *params) 1559 { 1560 struct ieee80211com *ic = ni->ni_ic; 1561 struct ieee80211_frame *wh; 1562 struct rum_tx_data *data; 1563 uint32_t flags; 1564 uint8_t ac, type, xflags = 0; 1565 int rate, error; 1566 1567 RUM_LOCK_ASSERT(sc); 1568 1569 wh = mtod(m0, struct ieee80211_frame *); 1570 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1571 1572 ac = params->ibp_pri & 3; 1573 1574 rate = params->ibp_rate0; 1575 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1576 return (EINVAL); 1577 1578 flags = 0; 1579 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1580 flags |= RT2573_TX_NEED_ACK; 1581 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1582 error = rum_sendprot(sc, m0, ni, 1583 params->ibp_flags & IEEE80211_BPF_RTS ? 1584 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1585 rate); 1586 if (error || sc->tx_nfree == 0) 1587 return (ENOBUFS); 1588 1589 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1590 } 1591 1592 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1593 xflags |= RT2573_TX_HWSEQ; 1594 1595 data = STAILQ_FIRST(&sc->tx_free); 1596 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1597 sc->tx_nfree--; 1598 1599 data->m = m0; 1600 data->ni = ni; 1601 data->rate = rate; 1602 1603 /* XXX need to setup descriptor ourself */ 1604 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1605 m0->m_pkthdr.len, rate); 1606 1607 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1608 m0->m_pkthdr.len, rate); 1609 1610 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1611 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1612 1613 return 0; 1614 } 1615 1616 static int 1617 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1618 { 1619 struct ieee80211vap *vap = ni->ni_vap; 1620 struct ieee80211com *ic = &sc->sc_ic; 1621 struct rum_tx_data *data; 1622 struct ieee80211_frame *wh; 1623 const struct ieee80211_txparam *tp = ni->ni_txparms; 1624 struct ieee80211_key *k = NULL; 1625 uint32_t flags = 0; 1626 uint16_t dur; 1627 uint8_t ac, type, qos, xflags = 0; 1628 int error, hdrlen, rate; 1629 1630 RUM_LOCK_ASSERT(sc); 1631 1632 wh = mtod(m0, struct ieee80211_frame *); 1633 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1634 hdrlen = ieee80211_anyhdrsize(wh); 1635 1636 if (IEEE80211_QOS_HAS_SEQ(wh)) 1637 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1638 else 1639 qos = 0; 1640 ac = M_WME_GETAC(m0); 1641 1642 if (m0->m_flags & M_EAPOL) 1643 rate = tp->mgmtrate; 1644 else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1645 rate = tp->mcastrate; 1646 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1647 rate = tp->ucastrate; 1648 else { 1649 (void) ieee80211_ratectl_rate(ni, NULL, 0); 1650 rate = ni->ni_txrate; 1651 } 1652 1653 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1654 k = ieee80211_crypto_get_txkey(ni, m0); 1655 if (k == NULL) { 1656 m_freem(m0); 1657 return (ENOENT); 1658 } 1659 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1660 !k->wk_cipher->ic_encap(k, m0)) { 1661 m_freem(m0); 1662 return (ENOBUFS); 1663 } 1664 1665 /* packet header may have moved, reset our local pointer */ 1666 wh = mtod(m0, struct ieee80211_frame *); 1667 } 1668 1669 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1670 xflags |= RT2573_TX_HWSEQ; 1671 1672 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1673 int prot = IEEE80211_PROT_NONE; 1674 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1675 prot = IEEE80211_PROT_RTSCTS; 1676 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1677 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1678 prot = ic->ic_protmode; 1679 if (prot != IEEE80211_PROT_NONE) { 1680 error = rum_sendprot(sc, m0, ni, prot, rate); 1681 if (error || sc->tx_nfree == 0) { 1682 m_freem(m0); 1683 return ENOBUFS; 1684 } 1685 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1686 } 1687 } 1688 1689 if (k != NULL) 1690 flags |= rum_tx_crypto_flags(sc, ni, k); 1691 1692 data = STAILQ_FIRST(&sc->tx_free); 1693 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1694 sc->tx_nfree--; 1695 1696 data->m = m0; 1697 data->ni = ni; 1698 data->rate = rate; 1699 1700 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1701 /* Unicast frame, check if an ACK is expected. */ 1702 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1703 IEEE80211_QOS_ACKPOLICY_NOACK) 1704 flags |= RT2573_TX_NEED_ACK; 1705 1706 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1707 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1708 USETW(wh->i_dur, dur); 1709 } 1710 1711 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1712 m0->m_pkthdr.len, rate); 1713 1714 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1715 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1716 1717 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1718 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1719 1720 return 0; 1721 } 1722 1723 static int 1724 rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1725 { 1726 struct rum_softc *sc = ic->ic_softc; 1727 int error; 1728 1729 RUM_LOCK(sc); 1730 if (!sc->sc_running) { 1731 RUM_UNLOCK(sc); 1732 return (ENXIO); 1733 } 1734 error = mbufq_enqueue(&sc->sc_snd, m); 1735 if (error) { 1736 RUM_UNLOCK(sc); 1737 return (error); 1738 } 1739 rum_start(sc); 1740 RUM_UNLOCK(sc); 1741 1742 return (0); 1743 } 1744 1745 static void 1746 rum_start(struct rum_softc *sc) 1747 { 1748 struct ieee80211_node *ni; 1749 struct mbuf *m; 1750 1751 RUM_LOCK_ASSERT(sc); 1752 1753 if (!sc->sc_running) 1754 return; 1755 1756 while (sc->tx_nfree >= RUM_TX_MINFREE && 1757 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1758 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1759 if (rum_tx_data(sc, m, ni) != 0) { 1760 if_inc_counter(ni->ni_vap->iv_ifp, 1761 IFCOUNTER_OERRORS, 1); 1762 ieee80211_free_node(ni); 1763 break; 1764 } 1765 } 1766 } 1767 1768 static void 1769 rum_parent(struct ieee80211com *ic) 1770 { 1771 struct rum_softc *sc = ic->ic_softc; 1772 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1773 1774 RUM_LOCK(sc); 1775 if (sc->sc_detached) { 1776 RUM_UNLOCK(sc); 1777 return; 1778 } 1779 RUM_UNLOCK(sc); 1780 1781 if (ic->ic_nrunning > 0) { 1782 if (rum_init(sc) == 0) 1783 ieee80211_start_all(ic); 1784 else 1785 ieee80211_stop(vap); 1786 } else 1787 rum_stop(sc); 1788 } 1789 1790 static void 1791 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1792 { 1793 struct usb_device_request req; 1794 usb_error_t error; 1795 1796 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1797 req.bRequest = RT2573_READ_EEPROM; 1798 USETW(req.wValue, 0); 1799 USETW(req.wIndex, addr); 1800 USETW(req.wLength, len); 1801 1802 error = rum_do_request(sc, &req, buf); 1803 if (error != 0) { 1804 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1805 usbd_errstr(error)); 1806 } 1807 } 1808 1809 static uint32_t 1810 rum_read(struct rum_softc *sc, uint16_t reg) 1811 { 1812 uint32_t val; 1813 1814 rum_read_multi(sc, reg, &val, sizeof val); 1815 1816 return le32toh(val); 1817 } 1818 1819 static void 1820 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1821 { 1822 struct usb_device_request req; 1823 usb_error_t error; 1824 1825 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1826 req.bRequest = RT2573_READ_MULTI_MAC; 1827 USETW(req.wValue, 0); 1828 USETW(req.wIndex, reg); 1829 USETW(req.wLength, len); 1830 1831 error = rum_do_request(sc, &req, buf); 1832 if (error != 0) { 1833 device_printf(sc->sc_dev, 1834 "could not multi read MAC register: %s\n", 1835 usbd_errstr(error)); 1836 } 1837 } 1838 1839 static usb_error_t 1840 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1841 { 1842 uint32_t tmp = htole32(val); 1843 1844 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1845 } 1846 1847 static usb_error_t 1848 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1849 { 1850 struct usb_device_request req; 1851 usb_error_t error; 1852 size_t offset; 1853 1854 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1855 req.bRequest = RT2573_WRITE_MULTI_MAC; 1856 USETW(req.wValue, 0); 1857 1858 /* write at most 64 bytes at a time */ 1859 for (offset = 0; offset < len; offset += 64) { 1860 USETW(req.wIndex, reg + offset); 1861 USETW(req.wLength, MIN(len - offset, 64)); 1862 1863 error = rum_do_request(sc, &req, (char *)buf + offset); 1864 if (error != 0) { 1865 device_printf(sc->sc_dev, 1866 "could not multi write MAC register: %s\n", 1867 usbd_errstr(error)); 1868 return (error); 1869 } 1870 } 1871 1872 return (USB_ERR_NORMAL_COMPLETION); 1873 } 1874 1875 static usb_error_t 1876 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1877 { 1878 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1879 } 1880 1881 static usb_error_t 1882 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1883 { 1884 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1885 } 1886 1887 static usb_error_t 1888 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1889 { 1890 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1891 } 1892 1893 static int 1894 rum_bbp_busy(struct rum_softc *sc) 1895 { 1896 int ntries; 1897 1898 for (ntries = 0; ntries < 100; ntries++) { 1899 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1900 break; 1901 if (rum_pause(sc, hz / 100)) 1902 break; 1903 } 1904 if (ntries == 100) 1905 return (ETIMEDOUT); 1906 1907 return (0); 1908 } 1909 1910 static void 1911 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1912 { 1913 uint32_t tmp; 1914 1915 DPRINTFN(2, "reg=0x%08x\n", reg); 1916 1917 if (rum_bbp_busy(sc) != 0) { 1918 device_printf(sc->sc_dev, "could not write to BBP\n"); 1919 return; 1920 } 1921 1922 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1923 rum_write(sc, RT2573_PHY_CSR3, tmp); 1924 } 1925 1926 static uint8_t 1927 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1928 { 1929 uint32_t val; 1930 int ntries; 1931 1932 DPRINTFN(2, "reg=0x%08x\n", reg); 1933 1934 if (rum_bbp_busy(sc) != 0) { 1935 device_printf(sc->sc_dev, "could not read BBP\n"); 1936 return 0; 1937 } 1938 1939 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1940 rum_write(sc, RT2573_PHY_CSR3, val); 1941 1942 for (ntries = 0; ntries < 100; ntries++) { 1943 val = rum_read(sc, RT2573_PHY_CSR3); 1944 if (!(val & RT2573_BBP_BUSY)) 1945 return val & 0xff; 1946 if (rum_pause(sc, hz / 100)) 1947 break; 1948 } 1949 1950 device_printf(sc->sc_dev, "could not read BBP\n"); 1951 return 0; 1952 } 1953 1954 static void 1955 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1956 { 1957 uint32_t tmp; 1958 int ntries; 1959 1960 for (ntries = 0; ntries < 100; ntries++) { 1961 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1962 break; 1963 if (rum_pause(sc, hz / 100)) 1964 break; 1965 } 1966 if (ntries == 100) { 1967 device_printf(sc->sc_dev, "could not write to RF\n"); 1968 return; 1969 } 1970 1971 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1972 (reg & 3); 1973 rum_write(sc, RT2573_PHY_CSR4, tmp); 1974 1975 /* remember last written value in sc */ 1976 sc->rf_regs[reg] = val; 1977 1978 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1979 } 1980 1981 static void 1982 rum_select_antenna(struct rum_softc *sc) 1983 { 1984 uint8_t bbp4, bbp77; 1985 uint32_t tmp; 1986 1987 bbp4 = rum_bbp_read(sc, 4); 1988 bbp77 = rum_bbp_read(sc, 77); 1989 1990 /* TBD */ 1991 1992 /* make sure Rx is disabled before switching antenna */ 1993 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1994 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1995 1996 rum_bbp_write(sc, 4, bbp4); 1997 rum_bbp_write(sc, 77, bbp77); 1998 1999 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2000 } 2001 2002 /* 2003 * Enable multi-rate retries for frames sent at OFDM rates. 2004 * In 802.11b/g mode, allow fallback to CCK rates. 2005 */ 2006 static void 2007 rum_enable_mrr(struct rum_softc *sc) 2008 { 2009 struct ieee80211com *ic = &sc->sc_ic; 2010 2011 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 2012 rum_setbits(sc, RT2573_TXRX_CSR4, 2013 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 2014 } else { 2015 rum_modbits(sc, RT2573_TXRX_CSR4, 2016 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 2017 } 2018 } 2019 2020 static void 2021 rum_set_txpreamble(struct rum_softc *sc) 2022 { 2023 struct ieee80211com *ic = &sc->sc_ic; 2024 2025 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2026 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 2027 else 2028 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 2029 } 2030 2031 static void 2032 rum_set_basicrates(struct rum_softc *sc) 2033 { 2034 struct ieee80211com *ic = &sc->sc_ic; 2035 2036 /* update basic rate set */ 2037 if (ic->ic_curmode == IEEE80211_MODE_11B) { 2038 /* 11b basic rates: 1, 2Mbps */ 2039 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 2040 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 2041 /* 11a basic rates: 6, 12, 24Mbps */ 2042 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 2043 } else { 2044 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 2045 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 2046 } 2047 } 2048 2049 /* 2050 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 2051 * driver. 2052 */ 2053 static void 2054 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 2055 { 2056 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 2057 2058 /* update all BBP registers that depend on the band */ 2059 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 2060 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 2061 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2062 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 2063 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 2064 } 2065 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2066 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2067 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 2068 } 2069 2070 sc->bbp17 = bbp17; 2071 rum_bbp_write(sc, 17, bbp17); 2072 rum_bbp_write(sc, 96, bbp96); 2073 rum_bbp_write(sc, 104, bbp104); 2074 2075 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2076 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2077 rum_bbp_write(sc, 75, 0x80); 2078 rum_bbp_write(sc, 86, 0x80); 2079 rum_bbp_write(sc, 88, 0x80); 2080 } 2081 2082 rum_bbp_write(sc, 35, bbp35); 2083 rum_bbp_write(sc, 97, bbp97); 2084 rum_bbp_write(sc, 98, bbp98); 2085 2086 if (IEEE80211_IS_CHAN_2GHZ(c)) { 2087 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 2088 RT2573_PA_PE_5GHZ); 2089 } else { 2090 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 2091 RT2573_PA_PE_2GHZ); 2092 } 2093 } 2094 2095 static void 2096 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 2097 { 2098 struct ieee80211com *ic = &sc->sc_ic; 2099 const struct rfprog *rfprog; 2100 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 2101 int8_t power; 2102 int i, chan; 2103 2104 chan = ieee80211_chan2ieee(ic, c); 2105 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 2106 return; 2107 2108 /* select the appropriate RF settings based on what EEPROM says */ 2109 rfprog = (sc->rf_rev == RT2573_RF_5225 || 2110 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 2111 2112 /* find the settings for this channel (we know it exists) */ 2113 for (i = 0; rfprog[i].chan != chan; i++); 2114 2115 power = sc->txpow[i]; 2116 if (power < 0) { 2117 bbp94 += power; 2118 power = 0; 2119 } else if (power > 31) { 2120 bbp94 += power - 31; 2121 power = 31; 2122 } 2123 2124 /* 2125 * If we are switching from the 2GHz band to the 5GHz band or 2126 * vice-versa, BBP registers need to be reprogrammed. 2127 */ 2128 if (c->ic_flags != ic->ic_curchan->ic_flags) { 2129 rum_select_band(sc, c); 2130 rum_select_antenna(sc); 2131 } 2132 ic->ic_curchan = c; 2133 2134 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2135 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2136 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2137 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2138 2139 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2140 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2141 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 2142 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2143 2144 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2145 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2146 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2147 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2148 2149 rum_pause(sc, hz / 100); 2150 2151 /* enable smart mode for MIMO-capable RFs */ 2152 bbp3 = rum_bbp_read(sc, 3); 2153 2154 bbp3 &= ~RT2573_SMART_MODE; 2155 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 2156 bbp3 |= RT2573_SMART_MODE; 2157 2158 rum_bbp_write(sc, 3, bbp3); 2159 2160 if (bbp94 != RT2573_BBPR94_DEFAULT) 2161 rum_bbp_write(sc, 94, bbp94); 2162 2163 /* give the chip some extra time to do the switchover */ 2164 rum_pause(sc, hz / 100); 2165 } 2166 2167 static void 2168 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 2169 { 2170 struct ieee80211_node *ni = vap->iv_bss; 2171 const struct ieee80211_txparam *tp = ni->ni_txparms; 2172 struct rum_vap *rvp = RUM_VAP(vap); 2173 2174 rvp->maxretry = MIN(tp->maxretry, 0xf); 2175 2176 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 2177 RT2573_LONG_RETRY(rvp->maxretry), 2178 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 2179 } 2180 2181 /* 2182 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 2183 * and HostAP operating modes. 2184 */ 2185 static int 2186 rum_enable_tsf_sync(struct rum_softc *sc) 2187 { 2188 struct ieee80211com *ic = &sc->sc_ic; 2189 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2190 uint32_t tmp; 2191 uint16_t bintval; 2192 2193 if (vap->iv_opmode != IEEE80211_M_STA) { 2194 /* 2195 * Change default 16ms TBTT adjustment to 8ms. 2196 * Must be done before enabling beacon generation. 2197 */ 2198 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2199 return EIO; 2200 } 2201 2202 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2203 2204 /* set beacon interval (in 1/16ms unit) */ 2205 bintval = vap->iv_bss->ni_intval; 2206 tmp |= bintval * 16; 2207 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2208 2209 switch (vap->iv_opmode) { 2210 case IEEE80211_M_STA: 2211 /* 2212 * Local TSF is always updated with remote TSF on beacon 2213 * reception. 2214 */ 2215 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2216 break; 2217 case IEEE80211_M_IBSS: 2218 /* 2219 * Local TSF is updated with remote TSF on beacon reception 2220 * only if the remote TSF is greater than local TSF. 2221 */ 2222 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2223 tmp |= RT2573_BCN_TX_EN; 2224 break; 2225 case IEEE80211_M_HOSTAP: 2226 /* SYNC with nobody */ 2227 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2228 tmp |= RT2573_BCN_TX_EN; 2229 break; 2230 default: 2231 device_printf(sc->sc_dev, 2232 "Enabling TSF failed. undefined opmode %d\n", 2233 vap->iv_opmode); 2234 return EINVAL; 2235 } 2236 2237 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2238 return EIO; 2239 2240 /* refresh current sleep time */ 2241 return (rum_set_sleep_time(sc, bintval)); 2242 } 2243 2244 static void 2245 rum_enable_tsf(struct rum_softc *sc) 2246 { 2247 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2248 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2249 } 2250 2251 static void 2252 rum_abort_tsf_sync(struct rum_softc *sc) 2253 { 2254 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2255 } 2256 2257 static void 2258 rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2259 { 2260 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2261 } 2262 2263 static void 2264 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2265 { 2266 struct ieee80211com *ic = &sc->sc_ic; 2267 uint8_t slottime; 2268 2269 slottime = IEEE80211_GET_SLOTTIME(ic); 2270 2271 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2272 2273 DPRINTF("setting slot time to %uus\n", slottime); 2274 } 2275 2276 static void 2277 rum_update_slot(struct ieee80211com *ic) 2278 { 2279 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2280 } 2281 2282 static int 2283 rum_wme_update(struct ieee80211com *ic) 2284 { 2285 struct chanAccParams chp; 2286 const struct wmeParams *chanp; 2287 struct rum_softc *sc = ic->ic_softc; 2288 int error = 0; 2289 2290 ieee80211_wme_ic_getparams(ic, &chp); 2291 chanp = chp.cap_wmeParams; 2292 2293 RUM_LOCK(sc); 2294 error = rum_write(sc, RT2573_AIFSN_CSR, 2295 chanp[WME_AC_VO].wmep_aifsn << 12 | 2296 chanp[WME_AC_VI].wmep_aifsn << 8 | 2297 chanp[WME_AC_BK].wmep_aifsn << 4 | 2298 chanp[WME_AC_BE].wmep_aifsn); 2299 if (error) 2300 goto print_err; 2301 error = rum_write(sc, RT2573_CWMIN_CSR, 2302 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2303 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2304 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2305 chanp[WME_AC_BE].wmep_logcwmin); 2306 if (error) 2307 goto print_err; 2308 error = rum_write(sc, RT2573_CWMAX_CSR, 2309 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2310 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2311 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2312 chanp[WME_AC_BE].wmep_logcwmax); 2313 if (error) 2314 goto print_err; 2315 error = rum_write(sc, RT2573_TXOP01_CSR, 2316 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2317 chanp[WME_AC_BE].wmep_txopLimit); 2318 if (error) 2319 goto print_err; 2320 error = rum_write(sc, RT2573_TXOP23_CSR, 2321 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2322 chanp[WME_AC_VI].wmep_txopLimit); 2323 if (error) 2324 goto print_err; 2325 2326 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2327 2328 print_err: 2329 RUM_UNLOCK(sc); 2330 if (error != 0) { 2331 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2332 __func__, error); 2333 } 2334 2335 return (error); 2336 } 2337 2338 static void 2339 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2340 { 2341 2342 rum_write(sc, RT2573_MAC_CSR4, 2343 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2344 rum_write(sc, RT2573_MAC_CSR5, 2345 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2346 } 2347 2348 static void 2349 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2350 { 2351 2352 rum_write(sc, RT2573_MAC_CSR2, 2353 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2354 rum_write(sc, RT2573_MAC_CSR3, 2355 addr[4] | addr[5] << 8 | 0xff << 16); 2356 } 2357 2358 static void 2359 rum_setpromisc(struct rum_softc *sc) 2360 { 2361 struct ieee80211com *ic = &sc->sc_ic; 2362 2363 if (ic->ic_promisc == 0) 2364 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2365 else 2366 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2367 2368 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2369 "entering" : "leaving"); 2370 } 2371 2372 static void 2373 rum_update_promisc(struct ieee80211com *ic) 2374 { 2375 struct rum_softc *sc = ic->ic_softc; 2376 2377 RUM_LOCK(sc); 2378 if (sc->sc_running) 2379 rum_setpromisc(sc); 2380 RUM_UNLOCK(sc); 2381 } 2382 2383 static void 2384 rum_update_mcast(struct ieee80211com *ic) 2385 { 2386 /* Ignore. */ 2387 } 2388 2389 static const char * 2390 rum_get_rf(int rev) 2391 { 2392 switch (rev) { 2393 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2394 case RT2573_RF_2528: return "RT2528"; 2395 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2396 case RT2573_RF_5226: return "RT5226"; 2397 default: return "unknown"; 2398 } 2399 } 2400 2401 static void 2402 rum_read_eeprom(struct rum_softc *sc) 2403 { 2404 uint16_t val; 2405 #ifdef RUM_DEBUG 2406 int i; 2407 #endif 2408 2409 /* read MAC address */ 2410 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2411 2412 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2413 val = le16toh(val); 2414 sc->rf_rev = (val >> 11) & 0x1f; 2415 sc->hw_radio = (val >> 10) & 0x1; 2416 sc->rx_ant = (val >> 4) & 0x3; 2417 sc->tx_ant = (val >> 2) & 0x3; 2418 sc->nb_ant = val & 0x3; 2419 2420 DPRINTF("RF revision=%d\n", sc->rf_rev); 2421 2422 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2423 val = le16toh(val); 2424 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2425 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2426 2427 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2428 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2429 2430 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2431 val = le16toh(val); 2432 if ((val & 0xff) != 0xff) 2433 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2434 2435 /* Only [-10, 10] is valid */ 2436 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2437 sc->rssi_2ghz_corr = 0; 2438 2439 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2440 val = le16toh(val); 2441 if ((val & 0xff) != 0xff) 2442 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2443 2444 /* Only [-10, 10] is valid */ 2445 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2446 sc->rssi_5ghz_corr = 0; 2447 2448 if (sc->ext_2ghz_lna) 2449 sc->rssi_2ghz_corr -= 14; 2450 if (sc->ext_5ghz_lna) 2451 sc->rssi_5ghz_corr -= 14; 2452 2453 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2454 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2455 2456 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2457 val = le16toh(val); 2458 if ((val & 0xff) != 0xff) 2459 sc->rffreq = val & 0xff; 2460 2461 DPRINTF("RF freq=%d\n", sc->rffreq); 2462 2463 /* read Tx power for all a/b/g channels */ 2464 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2465 /* XXX default Tx power for 802.11a channels */ 2466 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2467 #ifdef RUM_DEBUG 2468 for (i = 0; i < 14; i++) 2469 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2470 #endif 2471 2472 /* read default values for BBP registers */ 2473 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2474 #ifdef RUM_DEBUG 2475 for (i = 0; i < 14; i++) { 2476 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2477 continue; 2478 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2479 sc->bbp_prom[i].val); 2480 } 2481 #endif 2482 } 2483 2484 static int 2485 rum_bbp_wakeup(struct rum_softc *sc) 2486 { 2487 unsigned ntries; 2488 2489 for (ntries = 0; ntries < 100; ntries++) { 2490 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2491 break; 2492 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2493 if (rum_pause(sc, hz / 100)) 2494 break; 2495 } 2496 if (ntries == 100) { 2497 device_printf(sc->sc_dev, 2498 "timeout waiting for BBP/RF to wakeup\n"); 2499 return (ETIMEDOUT); 2500 } 2501 2502 return (0); 2503 } 2504 2505 static int 2506 rum_bbp_init(struct rum_softc *sc) 2507 { 2508 int i, ntries; 2509 2510 /* wait for BBP to be ready */ 2511 for (ntries = 0; ntries < 100; ntries++) { 2512 const uint8_t val = rum_bbp_read(sc, 0); 2513 if (val != 0 && val != 0xff) 2514 break; 2515 if (rum_pause(sc, hz / 100)) 2516 break; 2517 } 2518 if (ntries == 100) { 2519 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2520 return EIO; 2521 } 2522 2523 /* initialize BBP registers to default values */ 2524 for (i = 0; i < nitems(rum_def_bbp); i++) 2525 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2526 2527 /* write vendor-specific BBP values (from EEPROM) */ 2528 for (i = 0; i < 16; i++) { 2529 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2530 continue; 2531 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2532 } 2533 2534 return 0; 2535 } 2536 2537 static void 2538 rum_clr_shkey_regs(struct rum_softc *sc) 2539 { 2540 rum_write(sc, RT2573_SEC_CSR0, 0); 2541 rum_write(sc, RT2573_SEC_CSR1, 0); 2542 rum_write(sc, RT2573_SEC_CSR5, 0); 2543 } 2544 2545 static int 2546 rum_init(struct rum_softc *sc) 2547 { 2548 struct ieee80211com *ic = &sc->sc_ic; 2549 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2550 uint32_t tmp; 2551 int i, ret; 2552 2553 RUM_LOCK(sc); 2554 if (sc->sc_running) { 2555 ret = 0; 2556 goto end; 2557 } 2558 2559 /* initialize MAC registers to default values */ 2560 for (i = 0; i < nitems(rum_def_mac); i++) 2561 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2562 2563 /* reset some WME parameters to default values */ 2564 sc->wme_params[0].wmep_aifsn = 2; 2565 sc->wme_params[0].wmep_logcwmin = 4; 2566 sc->wme_params[0].wmep_logcwmax = 10; 2567 2568 /* set host ready */ 2569 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2570 rum_write(sc, RT2573_MAC_CSR1, 0); 2571 2572 /* wait for BBP/RF to wakeup */ 2573 if ((ret = rum_bbp_wakeup(sc)) != 0) 2574 goto end; 2575 2576 if ((ret = rum_bbp_init(sc)) != 0) 2577 goto end; 2578 2579 /* select default channel */ 2580 rum_select_band(sc, ic->ic_curchan); 2581 rum_select_antenna(sc); 2582 rum_set_chan(sc, ic->ic_curchan); 2583 2584 /* clear STA registers */ 2585 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2586 2587 /* clear security registers (if required) */ 2588 if (sc->sc_clr_shkeys == 0) { 2589 rum_clr_shkey_regs(sc); 2590 sc->sc_clr_shkeys = 1; 2591 } 2592 2593 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2594 2595 /* initialize ASIC */ 2596 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2597 2598 /* 2599 * Allocate Tx and Rx xfer queues. 2600 */ 2601 rum_setup_tx_list(sc); 2602 2603 /* update Rx filter */ 2604 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2605 2606 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2607 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2608 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2609 RT2573_DROP_ACKCTS; 2610 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2611 tmp |= RT2573_DROP_TODS; 2612 if (ic->ic_promisc == 0) 2613 tmp |= RT2573_DROP_NOT_TO_ME; 2614 } 2615 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2616 2617 sc->sc_running = 1; 2618 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2619 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2620 2621 end: RUM_UNLOCK(sc); 2622 2623 if (ret != 0) 2624 rum_stop(sc); 2625 2626 return ret; 2627 } 2628 2629 static void 2630 rum_stop(struct rum_softc *sc) 2631 { 2632 2633 RUM_LOCK(sc); 2634 if (!sc->sc_running) { 2635 RUM_UNLOCK(sc); 2636 return; 2637 } 2638 sc->sc_running = 0; 2639 RUM_UNLOCK(sc); 2640 2641 /* 2642 * Drain the USB transfers, if not already drained: 2643 */ 2644 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2645 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2646 2647 RUM_LOCK(sc); 2648 rum_unsetup_tx_list(sc); 2649 2650 /* disable Rx */ 2651 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2652 2653 /* reset ASIC */ 2654 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2655 rum_write(sc, RT2573_MAC_CSR1, 0); 2656 RUM_UNLOCK(sc); 2657 } 2658 2659 static void 2660 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2661 { 2662 uint16_t reg = RT2573_MCU_CODE_BASE; 2663 usb_error_t err; 2664 2665 /* copy firmware image into NIC */ 2666 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2667 err = rum_write(sc, reg, UGETDW(ucode)); 2668 if (err) { 2669 /* firmware already loaded ? */ 2670 device_printf(sc->sc_dev, "Firmware load " 2671 "failure! (ignored)\n"); 2672 break; 2673 } 2674 } 2675 2676 err = rum_do_mcu_request(sc, RT2573_MCU_RUN); 2677 if (err != USB_ERR_NORMAL_COMPLETION) { 2678 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2679 usbd_errstr(err)); 2680 } 2681 2682 /* give the chip some time to boot */ 2683 rum_pause(sc, hz / 8); 2684 } 2685 2686 static int 2687 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval) 2688 { 2689 struct ieee80211com *ic = &sc->sc_ic; 2690 usb_error_t uerror; 2691 int exp, delay; 2692 2693 RUM_LOCK_ASSERT(sc); 2694 2695 exp = ic->ic_lintval / bintval; 2696 delay = ic->ic_lintval % bintval; 2697 2698 if (exp > RT2573_TBCN_EXP_MAX) 2699 exp = RT2573_TBCN_EXP_MAX; 2700 if (delay > RT2573_TBCN_DELAY_MAX) 2701 delay = RT2573_TBCN_DELAY_MAX; 2702 2703 uerror = rum_modbits(sc, RT2573_MAC_CSR11, 2704 RT2573_TBCN_EXP(exp) | 2705 RT2573_TBCN_DELAY(delay), 2706 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) | 2707 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX)); 2708 2709 if (uerror != USB_ERR_NORMAL_COMPLETION) 2710 return (EIO); 2711 2712 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay); 2713 2714 return (0); 2715 } 2716 2717 static int 2718 rum_reset(struct ieee80211vap *vap, u_long cmd) 2719 { 2720 struct ieee80211com *ic = vap->iv_ic; 2721 struct ieee80211_node *ni; 2722 struct rum_softc *sc = ic->ic_softc; 2723 int error; 2724 2725 switch (cmd) { 2726 case IEEE80211_IOC_POWERSAVE: 2727 case IEEE80211_IOC_PROTMODE: 2728 case IEEE80211_IOC_RTSTHRESHOLD: 2729 error = 0; 2730 break; 2731 case IEEE80211_IOC_POWERSAVESLEEP: 2732 ni = ieee80211_ref_node(vap->iv_bss); 2733 2734 RUM_LOCK(sc); 2735 error = rum_set_sleep_time(sc, ni->ni_intval); 2736 if (vap->iv_state == IEEE80211_S_SLEEP) { 2737 /* Use new values for wakeup timer. */ 2738 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2739 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2740 } 2741 /* XXX send reassoc */ 2742 RUM_UNLOCK(sc); 2743 2744 ieee80211_free_node(ni); 2745 break; 2746 default: 2747 error = ENETRESET; 2748 break; 2749 } 2750 2751 return (error); 2752 } 2753 2754 static int 2755 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2756 { 2757 struct ieee80211com *ic = vap->iv_ic; 2758 struct rum_vap *rvp = RUM_VAP(vap); 2759 struct mbuf *m = rvp->bcn_mbuf; 2760 const struct ieee80211_txparam *tp; 2761 struct rum_tx_desc desc; 2762 2763 RUM_LOCK_ASSERT(sc); 2764 2765 if (m == NULL) 2766 return EINVAL; 2767 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2768 return EINVAL; 2769 2770 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2771 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2772 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2773 2774 /* copy the Tx descriptor into NIC memory */ 2775 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2776 RT2573_TX_DESC_SIZE) != 0) 2777 return EIO; 2778 2779 /* copy beacon header and payload into NIC memory */ 2780 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2781 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2782 return EIO; 2783 2784 return 0; 2785 } 2786 2787 static int 2788 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2789 { 2790 struct rum_vap *rvp = RUM_VAP(vap); 2791 struct ieee80211_node *ni = vap->iv_bss; 2792 struct mbuf *m; 2793 2794 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2795 return EINVAL; 2796 2797 m = ieee80211_beacon_alloc(ni); 2798 if (m == NULL) 2799 return ENOMEM; 2800 2801 if (rvp->bcn_mbuf != NULL) 2802 m_freem(rvp->bcn_mbuf); 2803 2804 rvp->bcn_mbuf = m; 2805 2806 return (rum_set_beacon(sc, vap)); 2807 } 2808 2809 static void 2810 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2811 uint8_t rvp_id) 2812 { 2813 struct ieee80211vap *vap = data->vap; 2814 2815 rum_set_beacon(sc, vap); 2816 } 2817 2818 static void 2819 rum_update_beacon(struct ieee80211vap *vap, int item) 2820 { 2821 struct ieee80211com *ic = vap->iv_ic; 2822 struct rum_softc *sc = ic->ic_softc; 2823 struct rum_vap *rvp = RUM_VAP(vap); 2824 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2825 struct ieee80211_node *ni = vap->iv_bss; 2826 struct mbuf *m = rvp->bcn_mbuf; 2827 int mcast = 0; 2828 2829 RUM_LOCK(sc); 2830 if (m == NULL) { 2831 m = ieee80211_beacon_alloc(ni); 2832 if (m == NULL) { 2833 device_printf(sc->sc_dev, 2834 "%s: could not allocate beacon frame\n", __func__); 2835 RUM_UNLOCK(sc); 2836 return; 2837 } 2838 rvp->bcn_mbuf = m; 2839 } 2840 2841 switch (item) { 2842 case IEEE80211_BEACON_ERP: 2843 rum_update_slot(ic); 2844 break; 2845 case IEEE80211_BEACON_TIM: 2846 mcast = 1; /*TODO*/ 2847 break; 2848 default: 2849 break; 2850 } 2851 RUM_UNLOCK(sc); 2852 2853 setbit(bo->bo_flags, item); 2854 ieee80211_beacon_update(ni, m, mcast); 2855 2856 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2857 } 2858 2859 static int 2860 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2861 uint16_t base) 2862 { 2863 2864 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2865 return EIO; 2866 2867 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2868 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2869 k->wk_txmic, 8)) 2870 return EIO; 2871 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2872 k->wk_rxmic, 8)) 2873 return EIO; 2874 } 2875 2876 return 0; 2877 } 2878 2879 static void 2880 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2881 uint8_t rvp_id) 2882 { 2883 struct ieee80211_key *k = &data->key; 2884 uint8_t mode; 2885 2886 if (sc->sc_clr_shkeys == 0) { 2887 rum_clr_shkey_regs(sc); 2888 sc->sc_clr_shkeys = 1; 2889 } 2890 2891 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2892 if (mode == 0) 2893 goto print_err; 2894 2895 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2896 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2897 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2898 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2899 2900 /* Install the key. */ 2901 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2902 goto print_err; 2903 2904 /* Set cipher mode. */ 2905 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2906 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2907 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2908 != 0) 2909 goto print_err; 2910 2911 /* Mark this key as valid. */ 2912 if (rum_setbits(sc, RT2573_SEC_CSR0, 2913 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2914 goto print_err; 2915 2916 return; 2917 2918 print_err: 2919 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2920 __func__, k->wk_keyix, rvp_id); 2921 } 2922 2923 static void 2924 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2925 uint8_t rvp_id) 2926 { 2927 struct ieee80211_key *k = &data->key; 2928 2929 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2930 k->wk_keyix, rvp_id); 2931 rum_clrbits(sc, 2932 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2933 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2934 rum_clrbits(sc, RT2573_SEC_CSR0, 2935 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2936 } 2937 2938 static void 2939 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2940 uint8_t rvp_id) 2941 { 2942 struct ieee80211_key *k = &data->key; 2943 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2944 uint8_t mode; 2945 2946 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2947 if (mode == 0) 2948 goto print_err; 2949 2950 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2951 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2952 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2953 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2954 2955 /* Install the key. */ 2956 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2957 goto print_err; 2958 2959 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2960 buf[IEEE80211_ADDR_LEN] = mode; 2961 2962 /* Set transmitter address and cipher mode. */ 2963 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2964 buf, sizeof buf) != 0) 2965 goto print_err; 2966 2967 /* Enable key table lookup for this vap. */ 2968 if (sc->vap_key_count[rvp_id]++ == 0) 2969 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2970 goto print_err; 2971 2972 /* Mark this key as valid. */ 2973 if (rum_setbits(sc, 2974 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2975 1 << (k->wk_keyix % 32)) != 0) 2976 goto print_err; 2977 2978 return; 2979 2980 print_err: 2981 device_printf(sc->sc_dev, 2982 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2983 rvp_id); 2984 } 2985 2986 static void 2987 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2988 uint8_t rvp_id) 2989 { 2990 struct ieee80211_key *k = &data->key; 2991 2992 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2993 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2994 1 << (k->wk_keyix % 32)); 2995 sc->keys_bmap &= ~(1ULL << k->wk_keyix); 2996 if (--sc->vap_key_count[rvp_id] == 0) 2997 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2998 } 2999 3000 static int 3001 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 3002 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 3003 { 3004 struct rum_softc *sc = vap->iv_ic->ic_softc; 3005 uint8_t i; 3006 3007 if (!(&vap->iv_nw_keys[0] <= k && 3008 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 3009 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 3010 RUM_LOCK(sc); 3011 for (i = 0; i < RT2573_ADDR_MAX; i++) { 3012 if ((sc->keys_bmap & (1ULL << i)) == 0) { 3013 sc->keys_bmap |= (1ULL << i); 3014 *keyix = i; 3015 break; 3016 } 3017 } 3018 RUM_UNLOCK(sc); 3019 if (i == RT2573_ADDR_MAX) { 3020 device_printf(sc->sc_dev, 3021 "%s: no free space in the key table\n", 3022 __func__); 3023 return 0; 3024 } 3025 } else 3026 *keyix = 0; 3027 } else { 3028 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 3029 } 3030 *rxkeyix = *keyix; 3031 return 1; 3032 } 3033 3034 static int 3035 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 3036 { 3037 struct rum_softc *sc = vap->iv_ic->ic_softc; 3038 int group; 3039 3040 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3041 /* Not for us. */ 3042 return 1; 3043 } 3044 3045 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3046 3047 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3048 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 3049 } 3050 3051 static int 3052 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 3053 { 3054 struct rum_softc *sc = vap->iv_ic->ic_softc; 3055 int group; 3056 3057 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3058 /* Not for us. */ 3059 return 1; 3060 } 3061 3062 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3063 3064 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3065 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 3066 } 3067 3068 static int 3069 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3070 const struct ieee80211_bpf_params *params) 3071 { 3072 struct rum_softc *sc = ni->ni_ic->ic_softc; 3073 int ret; 3074 3075 RUM_LOCK(sc); 3076 /* prevent management frames from being sent if we're not ready */ 3077 if (!sc->sc_running) { 3078 ret = ENETDOWN; 3079 goto bad; 3080 } 3081 if (sc->tx_nfree < RUM_TX_MINFREE) { 3082 ret = EIO; 3083 goto bad; 3084 } 3085 3086 if (params == NULL) { 3087 /* 3088 * Legacy path; interpret frame contents to decide 3089 * precisely how to send the frame. 3090 */ 3091 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 3092 goto bad; 3093 } else { 3094 /* 3095 * Caller supplied explicit parameters to use in 3096 * sending the frame. 3097 */ 3098 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 3099 goto bad; 3100 } 3101 RUM_UNLOCK(sc); 3102 3103 return 0; 3104 bad: 3105 RUM_UNLOCK(sc); 3106 m_freem(m); 3107 return ret; 3108 } 3109 3110 static void 3111 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 3112 { 3113 struct ieee80211vap *vap = ni->ni_vap; 3114 struct rum_vap *rvp = RUM_VAP(vap); 3115 3116 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 3117 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 3118 3119 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3120 } 3121 3122 static void 3123 rum_ratectl_timeout(void *arg) 3124 { 3125 struct rum_vap *rvp = arg; 3126 struct ieee80211vap *vap = &rvp->vap; 3127 struct ieee80211com *ic = vap->iv_ic; 3128 3129 ieee80211_runtask(ic, &rvp->ratectl_task); 3130 } 3131 3132 static void 3133 rum_ratectl_task(void *arg, int pending) 3134 { 3135 struct rum_vap *rvp = arg; 3136 struct ieee80211vap *vap = &rvp->vap; 3137 struct rum_softc *sc = vap->iv_ic->ic_softc; 3138 struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs; 3139 int ok[3], fail; 3140 3141 RUM_LOCK(sc); 3142 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 3143 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 3144 3145 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 3146 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 3147 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 3148 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 3149 3150 txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES; 3151 txs->nframes = ok[0] + ok[1] + ok[2] + fail; 3152 txs->nsuccess = txs->nframes - fail; 3153 /* XXX at least */ 3154 txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 3155 3156 if (txs->nframes != 0) 3157 ieee80211_ratectl_tx_update(vap, txs); 3158 3159 /* count TX retry-fail as Tx errors */ 3160 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 3161 3162 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3163 RUM_UNLOCK(sc); 3164 } 3165 3166 static void 3167 rum_scan_start(struct ieee80211com *ic) 3168 { 3169 struct rum_softc *sc = ic->ic_softc; 3170 3171 RUM_LOCK(sc); 3172 rum_abort_tsf_sync(sc); 3173 rum_set_bssid(sc, ieee80211broadcastaddr); 3174 RUM_UNLOCK(sc); 3175 3176 } 3177 3178 static void 3179 rum_scan_end(struct ieee80211com *ic) 3180 { 3181 struct rum_softc *sc = ic->ic_softc; 3182 3183 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 3184 RUM_LOCK(sc); 3185 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 3186 rum_enable_tsf_sync(sc); 3187 else 3188 rum_enable_tsf(sc); 3189 rum_set_bssid(sc, sc->sc_bssid); 3190 RUM_UNLOCK(sc); 3191 } 3192 } 3193 3194 static void 3195 rum_set_channel(struct ieee80211com *ic) 3196 { 3197 struct rum_softc *sc = ic->ic_softc; 3198 3199 RUM_LOCK(sc); 3200 rum_set_chan(sc, ic->ic_curchan); 3201 RUM_UNLOCK(sc); 3202 } 3203 3204 static void 3205 rum_getradiocaps(struct ieee80211com *ic, 3206 int maxchans, int *nchans, struct ieee80211_channel chans[]) 3207 { 3208 struct rum_softc *sc = ic->ic_softc; 3209 uint8_t bands[IEEE80211_MODE_BYTES]; 3210 3211 memset(bands, 0, sizeof(bands)); 3212 setbit(bands, IEEE80211_MODE_11B); 3213 setbit(bands, IEEE80211_MODE_11G); 3214 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0); 3215 3216 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 3217 setbit(bands, IEEE80211_MODE_11A); 3218 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3219 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0); 3220 } 3221 } 3222 3223 static int 3224 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 3225 { 3226 struct ieee80211com *ic = &sc->sc_ic; 3227 int lna, agc, rssi; 3228 3229 lna = (raw >> 5) & 0x3; 3230 agc = raw & 0x1f; 3231 3232 if (lna == 0) { 3233 /* 3234 * No RSSI mapping 3235 * 3236 * NB: Since RSSI is relative to noise floor, -1 is 3237 * adequate for caller to know error happened. 3238 */ 3239 return -1; 3240 } 3241 3242 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 3243 3244 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 3245 rssi += sc->rssi_2ghz_corr; 3246 3247 if (lna == 1) 3248 rssi -= 64; 3249 else if (lna == 2) 3250 rssi -= 74; 3251 else if (lna == 3) 3252 rssi -= 90; 3253 } else { 3254 rssi += sc->rssi_5ghz_corr; 3255 3256 if (!sc->ext_5ghz_lna && lna != 1) 3257 rssi += 4; 3258 3259 if (lna == 1) 3260 rssi -= 64; 3261 else if (lna == 2) 3262 rssi -= 86; 3263 else if (lna == 3) 3264 rssi -= 100; 3265 } 3266 return rssi; 3267 } 3268 3269 static int 3270 rum_pause(struct rum_softc *sc, int timeout) 3271 { 3272 3273 usb_pause_mtx(&sc->sc_mtx, timeout); 3274 return (0); 3275 } 3276 3277 static device_method_t rum_methods[] = { 3278 /* Device interface */ 3279 DEVMETHOD(device_probe, rum_match), 3280 DEVMETHOD(device_attach, rum_attach), 3281 DEVMETHOD(device_detach, rum_detach), 3282 DEVMETHOD_END 3283 }; 3284 3285 static driver_t rum_driver = { 3286 .name = "rum", 3287 .methods = rum_methods, 3288 .size = sizeof(struct rum_softc), 3289 }; 3290 3291 DRIVER_MODULE(rum, uhub, rum_driver, NULL, NULL); 3292 MODULE_DEPEND(rum, wlan, 1, 1, 1); 3293 MODULE_DEPEND(rum, usb, 1, 1, 1); 3294 MODULE_VERSION(rum, 1); 3295 USB_PNP_HOST_INFO(rum_devs); 3296