Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/iwn/if_iwn.c
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1 /*- 2 * Copyright (c) 2007-2009 3 * Damien Bergamini <damien.bergamini@free.fr> 4 * Copyright (c) 2008 5 * Benjamin Close <benjsc@FreeBSD.org> 6 * Copyright (c) 2008 Sam Leffler, Errno Consulting 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 /* 22 * Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network 23 * adapters. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD: stable/9/sys/dev/iwn/if_iwn.c 264947 2014-04-25 21:58:16Z marius $"); 28 29 #include <sys/param.h> 30 #include <sys/sockio.h> 31 #include <sys/sysctl.h> 32 #include <sys/mbuf.h> 33 #include <sys/kernel.h> 34 #include <sys/socket.h> 35 #include <sys/systm.h> 36 #include <sys/malloc.h> 37 #include <sys/bus.h> 38 #include <sys/rman.h> 39 #include <sys/endian.h> 40 #include <sys/firmware.h> 41 #include <sys/limits.h> 42 #include <sys/module.h> 43 #include <sys/queue.h> 44 #include <sys/taskqueue.h> 45 46 #include <machine/bus.h> 47 #include <machine/resource.h> 48 #include <machine/clock.h> 49 50 #include <dev/pci/pcireg.h> 51 #include <dev/pci/pcivar.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/ethernet.h> 57 #include <net/if_dl.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <netinet/in.h> 62 #include <netinet/in_systm.h> 63 #include <netinet/in_var.h> 64 #include <netinet/if_ether.h> 65 #include <netinet/ip.h> 66 67 #include <net80211/ieee80211_var.h> 68 #include <net80211/ieee80211_radiotap.h> 69 #include <net80211/ieee80211_regdomain.h> 70 #include <net80211/ieee80211_ratectl.h> 71 72 #include <dev/iwn/if_iwnreg.h> 73 #include <dev/iwn/if_iwnvar.h> 74 75 struct iwn_ident { 76 uint16_t vendor; 77 uint16_t device; 78 const char *name; 79 }; 80 81 static const struct iwn_ident iwn_ident_table[] = { 82 { 0x8086, 0x0082, "Intel Centrino Advanced-N 6205" }, 83 { 0x8086, 0x0083, "Intel Centrino Wireless-N 1000" }, 84 { 0x8086, 0x0084, "Intel Centrino Wireless-N 1000" }, 85 { 0x8086, 0x0085, "Intel Centrino Advanced-N 6205" }, 86 { 0x8086, 0x0087, "Intel Centrino Advanced-N + WiMAX 6250" }, 87 { 0x8086, 0x0089, "Intel Centrino Advanced-N + WiMAX 6250" }, 88 { 0x8086, 0x008a, "Intel Centrino Wireless-N 1030" }, 89 { 0x8086, 0x008b, "Intel Centrino Wireless-N 1030" }, 90 { 0x8086, 0x0090, "Intel Centrino Advanced-N 6230" }, 91 { 0x8086, 0x0091, "Intel Centrino Advanced-N 6230" }, 92 { 0x8086, 0x0885, "Intel Centrino Wireless-N + WiMAX 6150" }, 93 { 0x8086, 0x0886, "Intel Centrino Wireless-N + WiMAX 6150" }, 94 { 0x8086, 0x0896, "Intel Centrino Wireless-N 130" }, 95 { 0x8086, 0x0887, "Intel Centrino Wireless-N 130" }, 96 { 0x8086, 0x08ae, "Intel Centrino Wireless-N 100" }, 97 { 0x8086, 0x08af, "Intel Centrino Wireless-N 100" }, 98 { 0x8086, 0x4229, "Intel Wireless WiFi Link 4965" }, 99 { 0x8086, 0x422b, "Intel Centrino Ultimate-N 6300" }, 100 { 0x8086, 0x422c, "Intel Centrino Advanced-N 6200" }, 101 { 0x8086, 0x422d, "Intel Wireless WiFi Link 4965" }, 102 { 0x8086, 0x4230, "Intel Wireless WiFi Link 4965" }, 103 { 0x8086, 0x4232, "Intel WiFi Link 5100" }, 104 { 0x8086, 0x4233, "Intel Wireless WiFi Link 4965" }, 105 { 0x8086, 0x4235, "Intel Ultimate N WiFi Link 5300" }, 106 { 0x8086, 0x4236, "Intel Ultimate N WiFi Link 5300" }, 107 { 0x8086, 0x4237, "Intel WiFi Link 5100" }, 108 { 0x8086, 0x4238, "Intel Centrino Ultimate-N 6300" }, 109 { 0x8086, 0x4239, "Intel Centrino Advanced-N 6200" }, 110 { 0x8086, 0x423a, "Intel WiMAX/WiFi Link 5350" }, 111 { 0x8086, 0x423b, "Intel WiMAX/WiFi Link 5350" }, 112 { 0x8086, 0x423c, "Intel WiMAX/WiFi Link 5150" }, 113 { 0x8086, 0x423d, "Intel WiMAX/WiFi Link 5150" }, 114 { 0, 0, NULL } 115 }; 116 117 static int iwn_probe(device_t); 118 static int iwn_attach(device_t); 119 static int iwn4965_attach(struct iwn_softc *, uint16_t); 120 static int iwn5000_attach(struct iwn_softc *, uint16_t); 121 static void iwn_radiotap_attach(struct iwn_softc *); 122 static void iwn_sysctlattach(struct iwn_softc *); 123 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *, 124 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 125 const uint8_t [IEEE80211_ADDR_LEN], 126 const uint8_t [IEEE80211_ADDR_LEN]); 127 static void iwn_vap_delete(struct ieee80211vap *); 128 static int iwn_detach(device_t); 129 static int iwn_shutdown(device_t); 130 static int iwn_suspend(device_t); 131 static int iwn_resume(device_t); 132 static int iwn_nic_lock(struct iwn_softc *); 133 static int iwn_eeprom_lock(struct iwn_softc *); 134 static int iwn_init_otprom(struct iwn_softc *); 135 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int); 136 static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int); 137 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *, 138 void **, bus_size_t, bus_size_t); 139 static void iwn_dma_contig_free(struct iwn_dma_info *); 140 static int iwn_alloc_sched(struct iwn_softc *); 141 static void iwn_free_sched(struct iwn_softc *); 142 static int iwn_alloc_kw(struct iwn_softc *); 143 static void iwn_free_kw(struct iwn_softc *); 144 static int iwn_alloc_ict(struct iwn_softc *); 145 static void iwn_free_ict(struct iwn_softc *); 146 static int iwn_alloc_fwmem(struct iwn_softc *); 147 static void iwn_free_fwmem(struct iwn_softc *); 148 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 149 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 150 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 151 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *, 152 int); 153 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 154 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 155 static void iwn5000_ict_reset(struct iwn_softc *); 156 static int iwn_read_eeprom(struct iwn_softc *, 157 uint8_t macaddr[IEEE80211_ADDR_LEN]); 158 static void iwn4965_read_eeprom(struct iwn_softc *); 159 static void iwn4965_print_power_group(struct iwn_softc *, int); 160 static void iwn5000_read_eeprom(struct iwn_softc *); 161 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *); 162 static void iwn_read_eeprom_band(struct iwn_softc *, int); 163 static void iwn_read_eeprom_ht40(struct iwn_softc *, int); 164 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t); 165 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *, 166 struct ieee80211_channel *); 167 static int iwn_setregdomain(struct ieee80211com *, 168 struct ieee80211_regdomain *, int, 169 struct ieee80211_channel[]); 170 static void iwn_read_eeprom_enhinfo(struct iwn_softc *); 171 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *, 172 const uint8_t mac[IEEE80211_ADDR_LEN]); 173 static void iwn_newassoc(struct ieee80211_node *, int); 174 static int iwn_media_change(struct ifnet *); 175 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); 176 static void iwn_calib_timeout(void *); 177 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *, 178 struct iwn_rx_data *); 179 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *, 180 struct iwn_rx_data *); 181 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *, 182 struct iwn_rx_data *); 183 static void iwn5000_rx_calib_results(struct iwn_softc *, 184 struct iwn_rx_desc *, struct iwn_rx_data *); 185 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *, 186 struct iwn_rx_data *); 187 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 188 struct iwn_rx_data *); 189 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 190 struct iwn_rx_data *); 191 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, 192 uint8_t); 193 static void iwn_ampdu_tx_done(struct iwn_softc *, int, int, int, void *); 194 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *); 195 static void iwn_notif_intr(struct iwn_softc *); 196 static void iwn_wakeup_intr(struct iwn_softc *); 197 static void iwn_rftoggle_intr(struct iwn_softc *); 198 static void iwn_fatal_intr(struct iwn_softc *); 199 static void iwn_intr(void *); 200 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t, 201 uint16_t); 202 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t, 203 uint16_t); 204 #ifdef notyet 205 static void iwn5000_reset_sched(struct iwn_softc *, int, int); 206 #endif 207 static int iwn_tx_data(struct iwn_softc *, struct mbuf *, 208 struct ieee80211_node *); 209 static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *, 210 struct ieee80211_node *, 211 const struct ieee80211_bpf_params *params); 212 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *, 213 const struct ieee80211_bpf_params *); 214 static void iwn_start(struct ifnet *); 215 static void iwn_start_locked(struct ifnet *); 216 static void iwn_watchdog(void *); 217 static int iwn_ioctl(struct ifnet *, u_long, caddr_t); 218 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 219 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *, 220 int); 221 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *, 222 int); 223 static int iwn_set_link_quality(struct iwn_softc *, 224 struct ieee80211_node *); 225 static int iwn_add_broadcast_node(struct iwn_softc *, int); 226 static int iwn_updateedca(struct ieee80211com *); 227 static void iwn_update_mcast(struct ifnet *); 228 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 229 static int iwn_set_critical_temp(struct iwn_softc *); 230 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *); 231 static void iwn4965_power_calibration(struct iwn_softc *, int); 232 static int iwn4965_set_txpower(struct iwn_softc *, 233 struct ieee80211_channel *, int); 234 static int iwn5000_set_txpower(struct iwn_softc *, 235 struct ieee80211_channel *, int); 236 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 237 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 238 static int iwn_get_noise(const struct iwn_rx_general_stats *); 239 static int iwn4965_get_temperature(struct iwn_softc *); 240 static int iwn5000_get_temperature(struct iwn_softc *); 241 static int iwn_init_sensitivity(struct iwn_softc *); 242 static void iwn_collect_noise(struct iwn_softc *, 243 const struct iwn_rx_general_stats *); 244 static int iwn4965_init_gains(struct iwn_softc *); 245 static int iwn5000_init_gains(struct iwn_softc *); 246 static int iwn4965_set_gains(struct iwn_softc *); 247 static int iwn5000_set_gains(struct iwn_softc *); 248 static void iwn_tune_sensitivity(struct iwn_softc *, 249 const struct iwn_rx_stats *); 250 static int iwn_send_sensitivity(struct iwn_softc *); 251 static int iwn_set_pslevel(struct iwn_softc *, int, int, int); 252 static int iwn_send_btcoex(struct iwn_softc *); 253 static int iwn_send_advanced_btcoex(struct iwn_softc *); 254 static int iwn5000_runtime_calib(struct iwn_softc *); 255 static int iwn_config(struct iwn_softc *); 256 static uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int); 257 static int iwn_scan(struct iwn_softc *); 258 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap); 259 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap); 260 static int iwn_ampdu_rx_start(struct ieee80211_node *, 261 struct ieee80211_rx_ampdu *, int, int, int); 262 static void iwn_ampdu_rx_stop(struct ieee80211_node *, 263 struct ieee80211_rx_ampdu *); 264 static int iwn_addba_request(struct ieee80211_node *, 265 struct ieee80211_tx_ampdu *, int, int, int); 266 static int iwn_addba_response(struct ieee80211_node *, 267 struct ieee80211_tx_ampdu *, int, int, int); 268 static int iwn_ampdu_tx_start(struct ieee80211com *, 269 struct ieee80211_node *, uint8_t); 270 static void iwn_ampdu_tx_stop(struct ieee80211_node *, 271 struct ieee80211_tx_ampdu *); 272 static void iwn4965_ampdu_tx_start(struct iwn_softc *, 273 struct ieee80211_node *, int, uint8_t, uint16_t); 274 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, int, 275 uint8_t, uint16_t); 276 static void iwn5000_ampdu_tx_start(struct iwn_softc *, 277 struct ieee80211_node *, int, uint8_t, uint16_t); 278 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, int, 279 uint8_t, uint16_t); 280 static int iwn5000_query_calibration(struct iwn_softc *); 281 static int iwn5000_send_calibration(struct iwn_softc *); 282 static int iwn5000_send_wimax_coex(struct iwn_softc *); 283 static int iwn5000_crystal_calib(struct iwn_softc *); 284 static int iwn5000_temp_offset_calib(struct iwn_softc *); 285 static int iwn4965_post_alive(struct iwn_softc *); 286 static int iwn5000_post_alive(struct iwn_softc *); 287 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *, 288 int); 289 static int iwn4965_load_firmware(struct iwn_softc *); 290 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t, 291 const uint8_t *, int); 292 static int iwn5000_load_firmware(struct iwn_softc *); 293 static int iwn_read_firmware_leg(struct iwn_softc *, 294 struct iwn_fw_info *); 295 static int iwn_read_firmware_tlv(struct iwn_softc *, 296 struct iwn_fw_info *, uint16_t); 297 static int iwn_read_firmware(struct iwn_softc *); 298 static int iwn_clock_wait(struct iwn_softc *); 299 static int iwn_apm_init(struct iwn_softc *); 300 static void iwn_apm_stop_master(struct iwn_softc *); 301 static void iwn_apm_stop(struct iwn_softc *); 302 static int iwn4965_nic_config(struct iwn_softc *); 303 static int iwn5000_nic_config(struct iwn_softc *); 304 static int iwn_hw_prepare(struct iwn_softc *); 305 static int iwn_hw_init(struct iwn_softc *); 306 static void iwn_hw_stop(struct iwn_softc *); 307 static void iwn_radio_on(void *, int); 308 static void iwn_radio_off(void *, int); 309 static void iwn_init_locked(struct iwn_softc *); 310 static void iwn_init(void *); 311 static void iwn_stop_locked(struct iwn_softc *); 312 static void iwn_stop(struct iwn_softc *); 313 static void iwn_scan_start(struct ieee80211com *); 314 static void iwn_scan_end(struct ieee80211com *); 315 static void iwn_set_channel(struct ieee80211com *); 316 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); 317 static void iwn_scan_mindwell(struct ieee80211_scan_state *); 318 static void iwn_hw_reset(void *, int); 319 320 #define IWN_DEBUG 321 #ifdef IWN_DEBUG 322 enum { 323 IWN_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 324 IWN_DEBUG_RECV = 0x00000002, /* basic recv operation */ 325 IWN_DEBUG_STATE = 0x00000004, /* 802.11 state transitions */ 326 IWN_DEBUG_TXPOW = 0x00000008, /* tx power processing */ 327 IWN_DEBUG_RESET = 0x00000010, /* reset processing */ 328 IWN_DEBUG_OPS = 0x00000020, /* iwn_ops processing */ 329 IWN_DEBUG_BEACON = 0x00000040, /* beacon handling */ 330 IWN_DEBUG_WATCHDOG = 0x00000080, /* watchdog timeout */ 331 IWN_DEBUG_INTR = 0x00000100, /* ISR */ 332 IWN_DEBUG_CALIBRATE = 0x00000200, /* periodic calibration */ 333 IWN_DEBUG_NODE = 0x00000400, /* node management */ 334 IWN_DEBUG_LED = 0x00000800, /* led management */ 335 IWN_DEBUG_CMD = 0x00001000, /* cmd submission */ 336 IWN_DEBUG_FATAL = 0x80000000, /* fatal errors */ 337 IWN_DEBUG_ANY = 0xffffffff 338 }; 339 340 #define DPRINTF(sc, m, fmt, ...) do { \ 341 if (sc->sc_debug & (m)) \ 342 printf(fmt, __VA_ARGS__); \ 343 } while (0) 344 345 static const char * 346 iwn_intr_str(uint8_t cmd) 347 { 348 switch (cmd) { 349 /* Notifications */ 350 case IWN_UC_READY: return "UC_READY"; 351 case IWN_ADD_NODE_DONE: return "ADD_NODE_DONE"; 352 case IWN_TX_DONE: return "TX_DONE"; 353 case IWN_START_SCAN: return "START_SCAN"; 354 case IWN_STOP_SCAN: return "STOP_SCAN"; 355 case IWN_RX_STATISTICS: return "RX_STATS"; 356 case IWN_BEACON_STATISTICS: return "BEACON_STATS"; 357 case IWN_STATE_CHANGED: return "STATE_CHANGED"; 358 case IWN_BEACON_MISSED: return "BEACON_MISSED"; 359 case IWN_RX_PHY: return "RX_PHY"; 360 case IWN_MPDU_RX_DONE: return "MPDU_RX_DONE"; 361 case IWN_RX_DONE: return "RX_DONE"; 362 363 /* Command Notifications */ 364 case IWN_CMD_RXON: return "IWN_CMD_RXON"; 365 case IWN_CMD_RXON_ASSOC: return "IWN_CMD_RXON_ASSOC"; 366 case IWN_CMD_EDCA_PARAMS: return "IWN_CMD_EDCA_PARAMS"; 367 case IWN_CMD_TIMING: return "IWN_CMD_TIMING"; 368 case IWN_CMD_LINK_QUALITY: return "IWN_CMD_LINK_QUALITY"; 369 case IWN_CMD_SET_LED: return "IWN_CMD_SET_LED"; 370 case IWN5000_CMD_WIMAX_COEX: return "IWN5000_CMD_WIMAX_COEX"; 371 case IWN5000_CMD_CALIB_CONFIG: return "IWN5000_CMD_CALIB_CONFIG"; 372 case IWN5000_CMD_CALIB_RESULT: return "IWN5000_CMD_CALIB_RESULT"; 373 case IWN5000_CMD_CALIB_COMPLETE: return "IWN5000_CMD_CALIB_COMPLETE"; 374 case IWN_CMD_SET_POWER_MODE: return "IWN_CMD_SET_POWER_MODE"; 375 case IWN_CMD_SCAN: return "IWN_CMD_SCAN"; 376 case IWN_CMD_SCAN_RESULTS: return "IWN_CMD_SCAN_RESULTS"; 377 case IWN_CMD_TXPOWER: return "IWN_CMD_TXPOWER"; 378 case IWN_CMD_TXPOWER_DBM: return "IWN_CMD_TXPOWER_DBM"; 379 case IWN5000_CMD_TX_ANT_CONFIG: return "IWN5000_CMD_TX_ANT_CONFIG"; 380 case IWN_CMD_BT_COEX: return "IWN_CMD_BT_COEX"; 381 case IWN_CMD_SET_CRITICAL_TEMP: return "IWN_CMD_SET_CRITICAL_TEMP"; 382 case IWN_CMD_SET_SENSITIVITY: return "IWN_CMD_SET_SENSITIVITY"; 383 case IWN_CMD_PHY_CALIB: return "IWN_CMD_PHY_CALIB"; 384 } 385 return "UNKNOWN INTR NOTIF/CMD"; 386 } 387 #else 388 #define DPRINTF(sc, m, fmt, ...) do { (void) sc; } while (0) 389 #endif 390 391 static device_method_t iwn_methods[] = { 392 /* Device interface */ 393 DEVMETHOD(device_probe, iwn_probe), 394 DEVMETHOD(device_attach, iwn_attach), 395 DEVMETHOD(device_detach, iwn_detach), 396 DEVMETHOD(device_shutdown, iwn_shutdown), 397 DEVMETHOD(device_suspend, iwn_suspend), 398 DEVMETHOD(device_resume, iwn_resume), 399 400 DEVMETHOD_END 401 }; 402 403 static driver_t iwn_driver = { 404 "iwn", 405 iwn_methods, 406 sizeof(struct iwn_softc) 407 }; 408 static devclass_t iwn_devclass; 409 410 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, NULL, NULL); 411 412 MODULE_VERSION(iwn, 1); 413 414 MODULE_DEPEND(iwn, firmware, 1, 1, 1); 415 MODULE_DEPEND(iwn, pci, 1, 1, 1); 416 MODULE_DEPEND(iwn, wlan, 1, 1, 1); 417 418 static int 419 iwn_probe(device_t dev) 420 { 421 const struct iwn_ident *ident; 422 423 for (ident = iwn_ident_table; ident->name != NULL; ident++) { 424 if (pci_get_vendor(dev) == ident->vendor && 425 pci_get_device(dev) == ident->device) { 426 device_set_desc(dev, ident->name); 427 return (BUS_PROBE_DEFAULT); 428 } 429 } 430 return ENXIO; 431 } 432 433 static int 434 iwn_attach(device_t dev) 435 { 436 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev); 437 struct ieee80211com *ic; 438 struct ifnet *ifp; 439 int i, error, rid; 440 uint8_t macaddr[IEEE80211_ADDR_LEN]; 441 442 sc->sc_dev = dev; 443 444 /* 445 * Get the offset of the PCI Express Capability Structure in PCI 446 * Configuration Space. 447 */ 448 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off); 449 if (error != 0) { 450 device_printf(dev, "PCIe capability structure not found!\n"); 451 return error; 452 } 453 454 /* Clear device-specific "PCI retry timeout" register (41h). */ 455 pci_write_config(dev, 0x41, 0, 1); 456 457 /* Enable bus-mastering. */ 458 pci_enable_busmaster(dev); 459 460 rid = PCIR_BAR(0); 461 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 462 RF_ACTIVE); 463 if (sc->mem == NULL) { 464 device_printf(dev, "can't map mem space\n"); 465 error = ENOMEM; 466 return error; 467 } 468 sc->sc_st = rman_get_bustag(sc->mem); 469 sc->sc_sh = rman_get_bushandle(sc->mem); 470 471 i = 1; 472 rid = 0; 473 if (pci_alloc_msi(dev, &i) == 0) 474 rid = 1; 475 /* Install interrupt handler. */ 476 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | 477 (rid != 0 ? 0 : RF_SHAREABLE)); 478 if (sc->irq == NULL) { 479 device_printf(dev, "can't map interrupt\n"); 480 error = ENOMEM; 481 goto fail; 482 } 483 484 IWN_LOCK_INIT(sc); 485 486 /* Read hardware revision and attach. */ 487 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> 4) & 0xf; 488 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 489 error = iwn4965_attach(sc, pci_get_device(dev)); 490 else 491 error = iwn5000_attach(sc, pci_get_device(dev)); 492 if (error != 0) { 493 device_printf(dev, "could not attach device, error %d\n", 494 error); 495 goto fail; 496 } 497 498 if ((error = iwn_hw_prepare(sc)) != 0) { 499 device_printf(dev, "hardware not ready, error %d\n", error); 500 goto fail; 501 } 502 503 /* Allocate DMA memory for firmware transfers. */ 504 if ((error = iwn_alloc_fwmem(sc)) != 0) { 505 device_printf(dev, 506 "could not allocate memory for firmware, error %d\n", 507 error); 508 goto fail; 509 } 510 511 /* Allocate "Keep Warm" page. */ 512 if ((error = iwn_alloc_kw(sc)) != 0) { 513 device_printf(dev, 514 "could not allocate keep warm page, error %d\n", error); 515 goto fail; 516 } 517 518 /* Allocate ICT table for 5000 Series. */ 519 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 520 (error = iwn_alloc_ict(sc)) != 0) { 521 device_printf(dev, "could not allocate ICT table, error %d\n", 522 error); 523 goto fail; 524 } 525 526 /* Allocate TX scheduler "rings". */ 527 if ((error = iwn_alloc_sched(sc)) != 0) { 528 device_printf(dev, 529 "could not allocate TX scheduler rings, error %d\n", error); 530 goto fail; 531 } 532 533 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */ 534 for (i = 0; i < sc->ntxqs; i++) { 535 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 536 device_printf(dev, 537 "could not allocate TX ring %d, error %d\n", i, 538 error); 539 goto fail; 540 } 541 } 542 543 /* Allocate RX ring. */ 544 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) { 545 device_printf(dev, "could not allocate RX ring, error %d\n", 546 error); 547 goto fail; 548 } 549 550 /* Clear pending interrupts. */ 551 IWN_WRITE(sc, IWN_INT, 0xffffffff); 552 553 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 554 if (ifp == NULL) { 555 device_printf(dev, "can not allocate ifnet structure\n"); 556 goto fail; 557 } 558 559 ic = ifp->if_l2com; 560 ic->ic_ifp = ifp; 561 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 562 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 563 564 /* Set device capabilities. */ 565 ic->ic_caps = 566 IEEE80211_C_STA /* station mode supported */ 567 | IEEE80211_C_MONITOR /* monitor mode supported */ 568 | IEEE80211_C_BGSCAN /* background scanning */ 569 | IEEE80211_C_TXPMGT /* tx power management */ 570 | IEEE80211_C_SHSLOT /* short slot time supported */ 571 | IEEE80211_C_WPA 572 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 573 #if 0 574 | IEEE80211_C_IBSS /* ibss/adhoc mode */ 575 #endif 576 | IEEE80211_C_WME /* WME */ 577 ; 578 579 /* Read MAC address, channels, etc from EEPROM. */ 580 if ((error = iwn_read_eeprom(sc, macaddr)) != 0) { 581 device_printf(dev, "could not read EEPROM, error %d\n", 582 error); 583 goto fail; 584 } 585 586 /* Count the number of available chains. */ 587 sc->ntxchains = 588 ((sc->txchainmask >> 2) & 1) + 589 ((sc->txchainmask >> 1) & 1) + 590 ((sc->txchainmask >> 0) & 1); 591 sc->nrxchains = 592 ((sc->rxchainmask >> 2) & 1) + 593 ((sc->rxchainmask >> 1) & 1) + 594 ((sc->rxchainmask >> 0) & 1); 595 if (bootverbose) { 596 device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n", 597 sc->ntxchains, sc->nrxchains, sc->eeprom_domain, 598 macaddr, ":"); 599 } 600 601 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 602 ic->ic_rxstream = sc->nrxchains; 603 ic->ic_txstream = sc->ntxchains; 604 ic->ic_htcaps = 605 IEEE80211_HTCAP_SMPS_OFF /* SMPS mode disabled */ 606 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 607 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width*/ 608 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 609 #ifdef notyet 610 | IEEE80211_HTCAP_GREENFIELD 611 #if IWN_RBUF_SIZE == 8192 612 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 613 #else 614 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 615 #endif 616 #endif 617 /* s/w capabilities */ 618 | IEEE80211_HTC_HT /* HT operation */ 619 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 620 #ifdef notyet 621 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 622 #endif 623 ; 624 } 625 626 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 627 ifp->if_softc = sc; 628 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 629 ifp->if_init = iwn_init; 630 ifp->if_ioctl = iwn_ioctl; 631 ifp->if_start = iwn_start; 632 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 633 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 634 IFQ_SET_READY(&ifp->if_snd); 635 636 ieee80211_ifattach(ic, macaddr); 637 ic->ic_vap_create = iwn_vap_create; 638 ic->ic_vap_delete = iwn_vap_delete; 639 ic->ic_raw_xmit = iwn_raw_xmit; 640 ic->ic_node_alloc = iwn_node_alloc; 641 sc->sc_ampdu_rx_start = ic->ic_ampdu_rx_start; 642 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start; 643 sc->sc_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 644 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop; 645 sc->sc_addba_request = ic->ic_addba_request; 646 ic->ic_addba_request = iwn_addba_request; 647 sc->sc_addba_response = ic->ic_addba_response; 648 ic->ic_addba_response = iwn_addba_response; 649 sc->sc_addba_stop = ic->ic_addba_stop; 650 ic->ic_addba_stop = iwn_ampdu_tx_stop; 651 ic->ic_newassoc = iwn_newassoc; 652 ic->ic_wme.wme_update = iwn_updateedca; 653 ic->ic_update_mcast = iwn_update_mcast; 654 ic->ic_scan_start = iwn_scan_start; 655 ic->ic_scan_end = iwn_scan_end; 656 ic->ic_set_channel = iwn_set_channel; 657 ic->ic_scan_curchan = iwn_scan_curchan; 658 ic->ic_scan_mindwell = iwn_scan_mindwell; 659 ic->ic_setregdomain = iwn_setregdomain; 660 661 iwn_radiotap_attach(sc); 662 663 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0); 664 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0); 665 TASK_INIT(&sc->sc_reinit_task, 0, iwn_hw_reset, sc); 666 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc); 667 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, sc); 668 669 iwn_sysctlattach(sc); 670 671 /* 672 * Hook our interrupt after all initialization is complete. 673 */ 674 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 675 NULL, iwn_intr, sc, &sc->sc_ih); 676 if (error != 0) { 677 device_printf(dev, "can't establish interrupt, error %d\n", 678 error); 679 goto fail; 680 } 681 682 if (bootverbose) 683 ieee80211_announce(ic); 684 return 0; 685 fail: 686 iwn_detach(dev); 687 return error; 688 } 689 690 static int 691 iwn4965_attach(struct iwn_softc *sc, uint16_t pid) 692 { 693 struct iwn_ops *ops = &sc->ops; 694 695 ops->load_firmware = iwn4965_load_firmware; 696 ops->read_eeprom = iwn4965_read_eeprom; 697 ops->post_alive = iwn4965_post_alive; 698 ops->nic_config = iwn4965_nic_config; 699 ops->update_sched = iwn4965_update_sched; 700 ops->get_temperature = iwn4965_get_temperature; 701 ops->get_rssi = iwn4965_get_rssi; 702 ops->set_txpower = iwn4965_set_txpower; 703 ops->init_gains = iwn4965_init_gains; 704 ops->set_gains = iwn4965_set_gains; 705 ops->add_node = iwn4965_add_node; 706 ops->tx_done = iwn4965_tx_done; 707 ops->ampdu_tx_start = iwn4965_ampdu_tx_start; 708 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop; 709 sc->ntxqs = IWN4965_NTXQUEUES; 710 sc->firstaggqueue = IWN4965_FIRSTAGGQUEUE; 711 sc->ndmachnls = IWN4965_NDMACHNLS; 712 sc->broadcast_id = IWN4965_ID_BROADCAST; 713 sc->rxonsz = IWN4965_RXONSZ; 714 sc->schedsz = IWN4965_SCHEDSZ; 715 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ; 716 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ; 717 sc->fwsz = IWN4965_FWSZ; 718 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT; 719 sc->limits = &iwn4965_sensitivity_limits; 720 sc->fwname = "iwn4965fw"; 721 /* Override chains masks, ROM is known to be broken. */ 722 sc->txchainmask = IWN_ANT_AB; 723 sc->rxchainmask = IWN_ANT_ABC; 724 725 return 0; 726 } 727 728 static int 729 iwn5000_attach(struct iwn_softc *sc, uint16_t pid) 730 { 731 struct iwn_ops *ops = &sc->ops; 732 733 ops->load_firmware = iwn5000_load_firmware; 734 ops->read_eeprom = iwn5000_read_eeprom; 735 ops->post_alive = iwn5000_post_alive; 736 ops->nic_config = iwn5000_nic_config; 737 ops->update_sched = iwn5000_update_sched; 738 ops->get_temperature = iwn5000_get_temperature; 739 ops->get_rssi = iwn5000_get_rssi; 740 ops->set_txpower = iwn5000_set_txpower; 741 ops->init_gains = iwn5000_init_gains; 742 ops->set_gains = iwn5000_set_gains; 743 ops->add_node = iwn5000_add_node; 744 ops->tx_done = iwn5000_tx_done; 745 ops->ampdu_tx_start = iwn5000_ampdu_tx_start; 746 ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop; 747 sc->ntxqs = IWN5000_NTXQUEUES; 748 sc->firstaggqueue = IWN5000_FIRSTAGGQUEUE; 749 sc->ndmachnls = IWN5000_NDMACHNLS; 750 sc->broadcast_id = IWN5000_ID_BROADCAST; 751 sc->rxonsz = IWN5000_RXONSZ; 752 sc->schedsz = IWN5000_SCHEDSZ; 753 sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ; 754 sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ; 755 sc->fwsz = IWN5000_FWSZ; 756 sc->sched_txfact_addr = IWN5000_SCHED_TXFACT; 757 sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN; 758 sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN; 759 760 switch (sc->hw_type) { 761 case IWN_HW_REV_TYPE_5100: 762 sc->limits = &iwn5000_sensitivity_limits; 763 sc->fwname = "iwn5000fw"; 764 /* Override chains masks, ROM is known to be broken. */ 765 sc->txchainmask = IWN_ANT_B; 766 sc->rxchainmask = IWN_ANT_AB; 767 break; 768 case IWN_HW_REV_TYPE_5150: 769 sc->limits = &iwn5150_sensitivity_limits; 770 sc->fwname = "iwn5150fw"; 771 break; 772 case IWN_HW_REV_TYPE_5300: 773 case IWN_HW_REV_TYPE_5350: 774 sc->limits = &iwn5000_sensitivity_limits; 775 sc->fwname = "iwn5000fw"; 776 break; 777 case IWN_HW_REV_TYPE_1000: 778 sc->limits = &iwn1000_sensitivity_limits; 779 sc->fwname = "iwn1000fw"; 780 break; 781 case IWN_HW_REV_TYPE_6000: 782 sc->limits = &iwn6000_sensitivity_limits; 783 sc->fwname = "iwn6000fw"; 784 if (pid == 0x422c || pid == 0x4239) { 785 sc->sc_flags |= IWN_FLAG_INTERNAL_PA; 786 /* Override chains masks, ROM is known to be broken. */ 787 sc->txchainmask = IWN_ANT_BC; 788 sc->rxchainmask = IWN_ANT_BC; 789 } 790 break; 791 case IWN_HW_REV_TYPE_6050: 792 sc->limits = &iwn6000_sensitivity_limits; 793 sc->fwname = "iwn6050fw"; 794 /* Override chains masks, ROM is known to be broken. */ 795 sc->txchainmask = IWN_ANT_AB; 796 sc->rxchainmask = IWN_ANT_AB; 797 break; 798 case IWN_HW_REV_TYPE_6005: 799 sc->limits = &iwn6000_sensitivity_limits; 800 if (pid != 0x0082 && pid != 0x0085) { 801 sc->fwname = "iwn6000g2bfw"; 802 sc->sc_flags |= IWN_FLAG_ADV_BTCOEX; 803 } else 804 sc->fwname = "iwn6000g2afw"; 805 break; 806 default: 807 device_printf(sc->sc_dev, "adapter type %d not supported\n", 808 sc->hw_type); 809 return ENOTSUP; 810 } 811 return 0; 812 } 813 814 /* 815 * Attach the interface to 802.11 radiotap. 816 */ 817 static void 818 iwn_radiotap_attach(struct iwn_softc *sc) 819 { 820 struct ifnet *ifp = sc->sc_ifp; 821 struct ieee80211com *ic = ifp->if_l2com; 822 823 ieee80211_radiotap_attach(ic, 824 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 825 IWN_TX_RADIOTAP_PRESENT, 826 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 827 IWN_RX_RADIOTAP_PRESENT); 828 } 829 830 static void 831 iwn_sysctlattach(struct iwn_softc *sc) 832 { 833 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 834 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 835 836 #ifdef IWN_DEBUG 837 sc->sc_debug = 0; 838 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 839 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "control debugging printfs"); 840 #endif 841 } 842 843 static struct ieee80211vap * 844 iwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 845 enum ieee80211_opmode opmode, int flags, 846 const uint8_t bssid[IEEE80211_ADDR_LEN], 847 const uint8_t mac[IEEE80211_ADDR_LEN]) 848 { 849 struct iwn_vap *ivp; 850 struct ieee80211vap *vap; 851 852 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 853 return NULL; 854 ivp = (struct iwn_vap *) malloc(sizeof(struct iwn_vap), 855 M_80211_VAP, M_NOWAIT | M_ZERO); 856 if (ivp == NULL) 857 return NULL; 858 vap = &ivp->iv_vap; 859 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 860 vap->iv_bmissthreshold = 10; /* override default */ 861 /* Override with driver methods. */ 862 ivp->iv_newstate = vap->iv_newstate; 863 vap->iv_newstate = iwn_newstate; 864 865 ieee80211_ratectl_init(vap); 866 /* Complete setup. */ 867 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status); 868 ic->ic_opmode = opmode; 869 return vap; 870 } 871 872 static void 873 iwn_vap_delete(struct ieee80211vap *vap) 874 { 875 struct iwn_vap *ivp = IWN_VAP(vap); 876 877 ieee80211_ratectl_deinit(vap); 878 ieee80211_vap_detach(vap); 879 free(ivp, M_80211_VAP); 880 } 881 882 static int 883 iwn_detach(device_t dev) 884 { 885 struct iwn_softc *sc = device_get_softc(dev); 886 struct ifnet *ifp = sc->sc_ifp; 887 struct ieee80211com *ic; 888 int qid; 889 890 if (ifp != NULL) { 891 ic = ifp->if_l2com; 892 893 ieee80211_draintask(ic, &sc->sc_reinit_task); 894 ieee80211_draintask(ic, &sc->sc_radioon_task); 895 ieee80211_draintask(ic, &sc->sc_radiooff_task); 896 897 iwn_stop(sc); 898 callout_drain(&sc->watchdog_to); 899 callout_drain(&sc->calib_to); 900 ieee80211_ifdetach(ic); 901 } 902 903 /* Uninstall interrupt handler. */ 904 if (sc->irq != NULL) { 905 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 906 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), 907 sc->irq); 908 pci_release_msi(dev); 909 } 910 911 /* Free DMA resources. */ 912 iwn_free_rx_ring(sc, &sc->rxq); 913 for (qid = 0; qid < sc->ntxqs; qid++) 914 iwn_free_tx_ring(sc, &sc->txq[qid]); 915 iwn_free_sched(sc); 916 iwn_free_kw(sc); 917 if (sc->ict != NULL) 918 iwn_free_ict(sc); 919 iwn_free_fwmem(sc); 920 921 if (sc->mem != NULL) 922 bus_release_resource(dev, SYS_RES_MEMORY, 923 rman_get_rid(sc->mem), sc->mem); 924 925 if (ifp != NULL) 926 if_free(ifp); 927 928 IWN_LOCK_DESTROY(sc); 929 return 0; 930 } 931 932 static int 933 iwn_shutdown(device_t dev) 934 { 935 struct iwn_softc *sc = device_get_softc(dev); 936 937 iwn_stop(sc); 938 return 0; 939 } 940 941 static int 942 iwn_suspend(device_t dev) 943 { 944 struct iwn_softc *sc = device_get_softc(dev); 945 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 946 947 ieee80211_suspend_all(ic); 948 return 0; 949 } 950 951 static int 952 iwn_resume(device_t dev) 953 { 954 struct iwn_softc *sc = device_get_softc(dev); 955 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 956 957 /* Clear device-specific "PCI retry timeout" register (41h). */ 958 pci_write_config(dev, 0x41, 0, 1); 959 960 ieee80211_resume_all(ic); 961 return 0; 962 } 963 964 static int 965 iwn_nic_lock(struct iwn_softc *sc) 966 { 967 int ntries; 968 969 /* Request exclusive access to NIC. */ 970 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 971 972 /* Spin until we actually get the lock. */ 973 for (ntries = 0; ntries < 1000; ntries++) { 974 if ((IWN_READ(sc, IWN_GP_CNTRL) & 975 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) == 976 IWN_GP_CNTRL_MAC_ACCESS_ENA) 977 return 0; 978 DELAY(10); 979 } 980 return ETIMEDOUT; 981 } 982 983 static __inline void 984 iwn_nic_unlock(struct iwn_softc *sc) 985 { 986 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 987 } 988 989 static __inline uint32_t 990 iwn_prph_read(struct iwn_softc *sc, uint32_t addr) 991 { 992 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr); 993 IWN_BARRIER_READ_WRITE(sc); 994 return IWN_READ(sc, IWN_PRPH_RDATA); 995 } 996 997 static __inline void 998 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 999 { 1000 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr); 1001 IWN_BARRIER_WRITE(sc); 1002 IWN_WRITE(sc, IWN_PRPH_WDATA, data); 1003 } 1004 1005 static __inline void 1006 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1007 { 1008 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask); 1009 } 1010 1011 static __inline void 1012 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1013 { 1014 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask); 1015 } 1016 1017 static __inline void 1018 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr, 1019 const uint32_t *data, int count) 1020 { 1021 for (; count > 0; count--, data++, addr += 4) 1022 iwn_prph_write(sc, addr, *data); 1023 } 1024 1025 static __inline uint32_t 1026 iwn_mem_read(struct iwn_softc *sc, uint32_t addr) 1027 { 1028 IWN_WRITE(sc, IWN_MEM_RADDR, addr); 1029 IWN_BARRIER_READ_WRITE(sc); 1030 return IWN_READ(sc, IWN_MEM_RDATA); 1031 } 1032 1033 static __inline void 1034 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1035 { 1036 IWN_WRITE(sc, IWN_MEM_WADDR, addr); 1037 IWN_BARRIER_WRITE(sc); 1038 IWN_WRITE(sc, IWN_MEM_WDATA, data); 1039 } 1040 1041 static __inline void 1042 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data) 1043 { 1044 uint32_t tmp; 1045 1046 tmp = iwn_mem_read(sc, addr & ~3); 1047 if (addr & 3) 1048 tmp = (tmp & 0x0000ffff) | data << 16; 1049 else 1050 tmp = (tmp & 0xffff0000) | data; 1051 iwn_mem_write(sc, addr & ~3, tmp); 1052 } 1053 1054 static __inline void 1055 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data, 1056 int count) 1057 { 1058 for (; count > 0; count--, addr += 4) 1059 *data++ = iwn_mem_read(sc, addr); 1060 } 1061 1062 static __inline void 1063 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val, 1064 int count) 1065 { 1066 for (; count > 0; count--, addr += 4) 1067 iwn_mem_write(sc, addr, val); 1068 } 1069 1070 static int 1071 iwn_eeprom_lock(struct iwn_softc *sc) 1072 { 1073 int i, ntries; 1074 1075 for (i = 0; i < 100; i++) { 1076 /* Request exclusive access to EEPROM. */ 1077 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 1078 IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1079 1080 /* Spin until we actually get the lock. */ 1081 for (ntries = 0; ntries < 100; ntries++) { 1082 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 1083 IWN_HW_IF_CONFIG_EEPROM_LOCKED) 1084 return 0; 1085 DELAY(10); 1086 } 1087 } 1088 return ETIMEDOUT; 1089 } 1090 1091 static __inline void 1092 iwn_eeprom_unlock(struct iwn_softc *sc) 1093 { 1094 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1095 } 1096 1097 /* 1098 * Initialize access by host to One Time Programmable ROM. 1099 * NB: This kind of ROM can be found on 1000 or 6000 Series only. 1100 */ 1101 static int 1102 iwn_init_otprom(struct iwn_softc *sc) 1103 { 1104 uint16_t prev, base, next; 1105 int count, error; 1106 1107 /* Wait for clock stabilization before accessing prph. */ 1108 if ((error = iwn_clock_wait(sc)) != 0) 1109 return error; 1110 1111 if ((error = iwn_nic_lock(sc)) != 0) 1112 return error; 1113 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1114 DELAY(5); 1115 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1116 iwn_nic_unlock(sc); 1117 1118 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */ 1119 if (sc->hw_type != IWN_HW_REV_TYPE_1000) { 1120 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT, 1121 IWN_RESET_LINK_PWR_MGMT_DIS); 1122 } 1123 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER); 1124 /* Clear ECC status. */ 1125 IWN_SETBITS(sc, IWN_OTP_GP, 1126 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS); 1127 1128 /* 1129 * Find the block before last block (contains the EEPROM image) 1130 * for HW without OTP shadow RAM. 1131 */ 1132 if (sc->hw_type == IWN_HW_REV_TYPE_1000) { 1133 /* Switch to absolute addressing mode. */ 1134 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS); 1135 base = prev = 0; 1136 for (count = 0; count < IWN1000_OTP_NBLOCKS; count++) { 1137 error = iwn_read_prom_data(sc, base, &next, 2); 1138 if (error != 0) 1139 return error; 1140 if (next == 0) /* End of linked-list. */ 1141 break; 1142 prev = base; 1143 base = le16toh(next); 1144 } 1145 if (count == 0 || count == IWN1000_OTP_NBLOCKS) 1146 return EIO; 1147 /* Skip "next" word. */ 1148 sc->prom_base = prev + 1; 1149 } 1150 return 0; 1151 } 1152 1153 static int 1154 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count) 1155 { 1156 uint8_t *out = data; 1157 uint32_t val, tmp; 1158 int ntries; 1159 1160 addr += sc->prom_base; 1161 for (; count > 0; count -= 2, addr++) { 1162 IWN_WRITE(sc, IWN_EEPROM, addr << 2); 1163 for (ntries = 0; ntries < 10; ntries++) { 1164 val = IWN_READ(sc, IWN_EEPROM); 1165 if (val & IWN_EEPROM_READ_VALID) 1166 break; 1167 DELAY(5); 1168 } 1169 if (ntries == 10) { 1170 device_printf(sc->sc_dev, 1171 "timeout reading ROM at 0x%x\n", addr); 1172 return ETIMEDOUT; 1173 } 1174 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1175 /* OTPROM, check for ECC errors. */ 1176 tmp = IWN_READ(sc, IWN_OTP_GP); 1177 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) { 1178 device_printf(sc->sc_dev, 1179 "OTPROM ECC error at 0x%x\n", addr); 1180 return EIO; 1181 } 1182 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) { 1183 /* Correctable ECC error, clear bit. */ 1184 IWN_SETBITS(sc, IWN_OTP_GP, 1185 IWN_OTP_GP_ECC_CORR_STTS); 1186 } 1187 } 1188 *out++ = val >> 16; 1189 if (count > 1) 1190 *out++ = val >> 24; 1191 } 1192 return 0; 1193 } 1194 1195 static void 1196 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1197 { 1198 if (error != 0) 1199 return; 1200 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 1201 *(bus_addr_t *)arg = segs[0].ds_addr; 1202 } 1203 1204 static int 1205 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma, 1206 void **kvap, bus_size_t size, bus_size_t alignment) 1207 { 1208 int error; 1209 1210 dma->tag = NULL; 1211 dma->size = size; 1212 1213 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment, 1214 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size, 1215 1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag); 1216 if (error != 0) 1217 goto fail; 1218 1219 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr, 1220 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map); 1221 if (error != 0) 1222 goto fail; 1223 1224 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size, 1225 iwn_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT); 1226 if (error != 0) 1227 goto fail; 1228 1229 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 1230 1231 if (kvap != NULL) 1232 *kvap = dma->vaddr; 1233 1234 return 0; 1235 1236 fail: iwn_dma_contig_free(dma); 1237 return error; 1238 } 1239 1240 static void 1241 iwn_dma_contig_free(struct iwn_dma_info *dma) 1242 { 1243 if (dma->map != NULL) { 1244 if (dma->vaddr != NULL) { 1245 bus_dmamap_sync(dma->tag, dma->map, 1246 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1247 bus_dmamap_unload(dma->tag, dma->map); 1248 bus_dmamem_free(dma->tag, &dma->vaddr, dma->map); 1249 dma->vaddr = NULL; 1250 } 1251 bus_dmamap_destroy(dma->tag, dma->map); 1252 dma->map = NULL; 1253 } 1254 if (dma->tag != NULL) { 1255 bus_dma_tag_destroy(dma->tag); 1256 dma->tag = NULL; 1257 } 1258 } 1259 1260 static int 1261 iwn_alloc_sched(struct iwn_softc *sc) 1262 { 1263 /* TX scheduler rings must be aligned on a 1KB boundary. */ 1264 return iwn_dma_contig_alloc(sc, &sc->sched_dma, (void **)&sc->sched, 1265 sc->schedsz, 1024); 1266 } 1267 1268 static void 1269 iwn_free_sched(struct iwn_softc *sc) 1270 { 1271 iwn_dma_contig_free(&sc->sched_dma); 1272 } 1273 1274 static int 1275 iwn_alloc_kw(struct iwn_softc *sc) 1276 { 1277 /* "Keep Warm" page must be aligned on a 4KB boundary. */ 1278 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096); 1279 } 1280 1281 static void 1282 iwn_free_kw(struct iwn_softc *sc) 1283 { 1284 iwn_dma_contig_free(&sc->kw_dma); 1285 } 1286 1287 static int 1288 iwn_alloc_ict(struct iwn_softc *sc) 1289 { 1290 /* ICT table must be aligned on a 4KB boundary. */ 1291 return iwn_dma_contig_alloc(sc, &sc->ict_dma, (void **)&sc->ict, 1292 IWN_ICT_SIZE, 4096); 1293 } 1294 1295 static void 1296 iwn_free_ict(struct iwn_softc *sc) 1297 { 1298 iwn_dma_contig_free(&sc->ict_dma); 1299 } 1300 1301 static int 1302 iwn_alloc_fwmem(struct iwn_softc *sc) 1303 { 1304 /* Must be aligned on a 16-byte boundary. */ 1305 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, sc->fwsz, 16); 1306 } 1307 1308 static void 1309 iwn_free_fwmem(struct iwn_softc *sc) 1310 { 1311 iwn_dma_contig_free(&sc->fw_dma); 1312 } 1313 1314 static int 1315 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1316 { 1317 bus_size_t size; 1318 int i, error; 1319 1320 ring->cur = 0; 1321 1322 /* Allocate RX descriptors (256-byte aligned). */ 1323 size = IWN_RX_RING_COUNT * sizeof (uint32_t); 1324 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1325 size, 256); 1326 if (error != 0) { 1327 device_printf(sc->sc_dev, 1328 "%s: could not allocate RX ring DMA memory, error %d\n", 1329 __func__, error); 1330 goto fail; 1331 } 1332 1333 /* Allocate RX status area (16-byte aligned). */ 1334 error = iwn_dma_contig_alloc(sc, &ring->stat_dma, (void **)&ring->stat, 1335 sizeof (struct iwn_rx_status), 16); 1336 if (error != 0) { 1337 device_printf(sc->sc_dev, 1338 "%s: could not allocate RX status DMA memory, error %d\n", 1339 __func__, error); 1340 goto fail; 1341 } 1342 1343 /* Create RX buffer DMA tag. */ 1344 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1345 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 1346 IWN_RBUF_SIZE, 1, IWN_RBUF_SIZE, BUS_DMA_NOWAIT, NULL, NULL, 1347 &ring->data_dmat); 1348 if (error != 0) { 1349 device_printf(sc->sc_dev, 1350 "%s: could not create RX buf DMA tag, error %d\n", 1351 __func__, error); 1352 goto fail; 1353 } 1354 1355 /* 1356 * Allocate and map RX buffers. 1357 */ 1358 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1359 struct iwn_rx_data *data = &ring->data[i]; 1360 bus_addr_t paddr; 1361 1362 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1363 if (error != 0) { 1364 device_printf(sc->sc_dev, 1365 "%s: could not create RX buf DMA map, error %d\n", 1366 __func__, error); 1367 goto fail; 1368 } 1369 1370 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, 1371 IWN_RBUF_SIZE); 1372 if (data->m == NULL) { 1373 device_printf(sc->sc_dev, 1374 "%s: could not allocate RX mbuf\n", __func__); 1375 error = ENOBUFS; 1376 goto fail; 1377 } 1378 1379 error = bus_dmamap_load(ring->data_dmat, data->map, 1380 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 1381 &paddr, BUS_DMA_NOWAIT); 1382 if (error != 0 && error != EFBIG) { 1383 device_printf(sc->sc_dev, 1384 "%s: can't not map mbuf, error %d\n", __func__, 1385 error); 1386 goto fail; 1387 } 1388 1389 /* Set physical address of RX buffer (256-byte aligned). */ 1390 ring->desc[i] = htole32(paddr >> 8); 1391 } 1392 1393 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1394 BUS_DMASYNC_PREWRITE); 1395 1396 return 0; 1397 1398 fail: iwn_free_rx_ring(sc, ring); 1399 return error; 1400 } 1401 1402 static void 1403 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1404 { 1405 int ntries; 1406 1407 if (iwn_nic_lock(sc) == 0) { 1408 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 1409 for (ntries = 0; ntries < 1000; ntries++) { 1410 if (IWN_READ(sc, IWN_FH_RX_STATUS) & 1411 IWN_FH_RX_STATUS_IDLE) 1412 break; 1413 DELAY(10); 1414 } 1415 iwn_nic_unlock(sc); 1416 } 1417 ring->cur = 0; 1418 sc->last_rx_valid = 0; 1419 } 1420 1421 static void 1422 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1423 { 1424 int i; 1425 1426 iwn_dma_contig_free(&ring->desc_dma); 1427 iwn_dma_contig_free(&ring->stat_dma); 1428 1429 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1430 struct iwn_rx_data *data = &ring->data[i]; 1431 1432 if (data->m != NULL) { 1433 bus_dmamap_sync(ring->data_dmat, data->map, 1434 BUS_DMASYNC_POSTREAD); 1435 bus_dmamap_unload(ring->data_dmat, data->map); 1436 m_freem(data->m); 1437 data->m = NULL; 1438 } 1439 if (data->map != NULL) 1440 bus_dmamap_destroy(ring->data_dmat, data->map); 1441 } 1442 if (ring->data_dmat != NULL) { 1443 bus_dma_tag_destroy(ring->data_dmat); 1444 ring->data_dmat = NULL; 1445 } 1446 } 1447 1448 static int 1449 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid) 1450 { 1451 bus_addr_t paddr; 1452 bus_size_t size; 1453 int i, error; 1454 1455 ring->qid = qid; 1456 ring->queued = 0; 1457 ring->cur = 0; 1458 1459 /* Allocate TX descriptors (256-byte aligned). */ 1460 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc); 1461 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1462 size, 256); 1463 if (error != 0) { 1464 device_printf(sc->sc_dev, 1465 "%s: could not allocate TX ring DMA memory, error %d\n", 1466 __func__, error); 1467 goto fail; 1468 } 1469 1470 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd); 1471 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 1472 size, 4); 1473 if (error != 0) { 1474 device_printf(sc->sc_dev, 1475 "%s: could not allocate TX cmd DMA memory, error %d\n", 1476 __func__, error); 1477 goto fail; 1478 } 1479 1480 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1481 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1482 IWN_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL, 1483 &ring->data_dmat); 1484 if (error != 0) { 1485 device_printf(sc->sc_dev, 1486 "%s: could not create TX buf DMA tag, error %d\n", 1487 __func__, error); 1488 goto fail; 1489 } 1490 1491 paddr = ring->cmd_dma.paddr; 1492 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1493 struct iwn_tx_data *data = &ring->data[i]; 1494 1495 data->cmd_paddr = paddr; 1496 data->scratch_paddr = paddr + 12; 1497 paddr += sizeof (struct iwn_tx_cmd); 1498 1499 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1500 if (error != 0) { 1501 device_printf(sc->sc_dev, 1502 "%s: could not create TX buf DMA map, error %d\n", 1503 __func__, error); 1504 goto fail; 1505 } 1506 } 1507 return 0; 1508 1509 fail: iwn_free_tx_ring(sc, ring); 1510 return error; 1511 } 1512 1513 static void 1514 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1515 { 1516 int i; 1517 1518 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1519 struct iwn_tx_data *data = &ring->data[i]; 1520 1521 if (data->m != NULL) { 1522 bus_dmamap_sync(ring->data_dmat, data->map, 1523 BUS_DMASYNC_POSTWRITE); 1524 bus_dmamap_unload(ring->data_dmat, data->map); 1525 m_freem(data->m); 1526 data->m = NULL; 1527 } 1528 } 1529 /* Clear TX descriptors. */ 1530 memset(ring->desc, 0, ring->desc_dma.size); 1531 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1532 BUS_DMASYNC_PREWRITE); 1533 sc->qfullmsk &= ~(1 << ring->qid); 1534 ring->queued = 0; 1535 ring->cur = 0; 1536 } 1537 1538 static void 1539 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1540 { 1541 int i; 1542 1543 iwn_dma_contig_free(&ring->desc_dma); 1544 iwn_dma_contig_free(&ring->cmd_dma); 1545 1546 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1547 struct iwn_tx_data *data = &ring->data[i]; 1548 1549 if (data->m != NULL) { 1550 bus_dmamap_sync(ring->data_dmat, data->map, 1551 BUS_DMASYNC_POSTWRITE); 1552 bus_dmamap_unload(ring->data_dmat, data->map); 1553 m_freem(data->m); 1554 } 1555 if (data->map != NULL) 1556 bus_dmamap_destroy(ring->data_dmat, data->map); 1557 } 1558 if (ring->data_dmat != NULL) { 1559 bus_dma_tag_destroy(ring->data_dmat); 1560 ring->data_dmat = NULL; 1561 } 1562 } 1563 1564 static void 1565 iwn5000_ict_reset(struct iwn_softc *sc) 1566 { 1567 /* Disable interrupts. */ 1568 IWN_WRITE(sc, IWN_INT_MASK, 0); 1569 1570 /* Reset ICT table. */ 1571 memset(sc->ict, 0, IWN_ICT_SIZE); 1572 sc->ict_cur = 0; 1573 1574 /* Set physical address of ICT table (4KB aligned). */ 1575 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__); 1576 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | 1577 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12); 1578 1579 /* Enable periodic RX interrupt. */ 1580 sc->int_mask |= IWN_INT_RX_PERIODIC; 1581 /* Switch to ICT interrupt mode in driver. */ 1582 sc->sc_flags |= IWN_FLAG_USE_ICT; 1583 1584 /* Re-enable interrupts. */ 1585 IWN_WRITE(sc, IWN_INT, 0xffffffff); 1586 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 1587 } 1588 1589 static int 1590 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 1591 { 1592 struct iwn_ops *ops = &sc->ops; 1593 uint16_t val; 1594 int error; 1595 1596 /* Check whether adapter has an EEPROM or an OTPROM. */ 1597 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 && 1598 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP)) 1599 sc->sc_flags |= IWN_FLAG_HAS_OTPROM; 1600 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n", 1601 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM"); 1602 1603 /* Adapter has to be powered on for EEPROM access to work. */ 1604 if ((error = iwn_apm_init(sc)) != 0) { 1605 device_printf(sc->sc_dev, 1606 "%s: could not power ON adapter, error %d\n", __func__, 1607 error); 1608 return error; 1609 } 1610 1611 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) { 1612 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__); 1613 return EIO; 1614 } 1615 if ((error = iwn_eeprom_lock(sc)) != 0) { 1616 device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n", 1617 __func__, error); 1618 return error; 1619 } 1620 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1621 if ((error = iwn_init_otprom(sc)) != 0) { 1622 device_printf(sc->sc_dev, 1623 "%s: could not initialize OTPROM, error %d\n", 1624 __func__, error); 1625 return error; 1626 } 1627 } 1628 1629 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2); 1630 DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val)); 1631 /* Check if HT support is bonded out. */ 1632 if (val & htole16(IWN_EEPROM_SKU_CAP_11N)) 1633 sc->sc_flags |= IWN_FLAG_HAS_11N; 1634 1635 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2); 1636 sc->rfcfg = le16toh(val); 1637 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg); 1638 /* Read Tx/Rx chains from ROM unless it's known to be broken. */ 1639 if (sc->txchainmask == 0) 1640 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg); 1641 if (sc->rxchainmask == 0) 1642 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg); 1643 1644 /* Read MAC address. */ 1645 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6); 1646 1647 /* Read adapter-specific information from EEPROM. */ 1648 ops->read_eeprom(sc); 1649 1650 iwn_apm_stop(sc); /* Power OFF adapter. */ 1651 1652 iwn_eeprom_unlock(sc); 1653 return 0; 1654 } 1655 1656 static void 1657 iwn4965_read_eeprom(struct iwn_softc *sc) 1658 { 1659 uint32_t addr; 1660 uint16_t val; 1661 int i; 1662 1663 /* Read regulatory domain (4 ASCII characters). */ 1664 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4); 1665 1666 /* Read the list of authorized channels (20MHz ones only). */ 1667 for (i = 0; i < 7; i++) { 1668 addr = iwn4965_regulatory_bands[i]; 1669 iwn_read_eeprom_channels(sc, i, addr); 1670 } 1671 1672 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */ 1673 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2); 1674 sc->maxpwr2GHz = val & 0xff; 1675 sc->maxpwr5GHz = val >> 8; 1676 /* Check that EEPROM values are within valid range. */ 1677 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 1678 sc->maxpwr5GHz = 38; 1679 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 1680 sc->maxpwr2GHz = 38; 1681 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n", 1682 sc->maxpwr2GHz, sc->maxpwr5GHz); 1683 1684 /* Read samples for each TX power group. */ 1685 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands, 1686 sizeof sc->bands); 1687 1688 /* Read voltage at which samples were taken. */ 1689 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2); 1690 sc->eeprom_voltage = (int16_t)le16toh(val); 1691 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n", 1692 sc->eeprom_voltage); 1693 1694 #ifdef IWN_DEBUG 1695 /* Print samples. */ 1696 if (sc->sc_debug & IWN_DEBUG_ANY) { 1697 for (i = 0; i < IWN_NBANDS; i++) 1698 iwn4965_print_power_group(sc, i); 1699 } 1700 #endif 1701 } 1702 1703 #ifdef IWN_DEBUG 1704 static void 1705 iwn4965_print_power_group(struct iwn_softc *sc, int i) 1706 { 1707 struct iwn4965_eeprom_band *band = &sc->bands[i]; 1708 struct iwn4965_eeprom_chan_samples *chans = band->chans; 1709 int j, c; 1710 1711 printf("===band %d===\n", i); 1712 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 1713 printf("chan1 num=%d\n", chans[0].num); 1714 for (c = 0; c < 2; c++) { 1715 for (j = 0; j < IWN_NSAMPLES; j++) { 1716 printf("chain %d, sample %d: temp=%d gain=%d " 1717 "power=%d pa_det=%d\n", c, j, 1718 chans[0].samples[c][j].temp, 1719 chans[0].samples[c][j].gain, 1720 chans[0].samples[c][j].power, 1721 chans[0].samples[c][j].pa_det); 1722 } 1723 } 1724 printf("chan2 num=%d\n", chans[1].num); 1725 for (c = 0; c < 2; c++) { 1726 for (j = 0; j < IWN_NSAMPLES; j++) { 1727 printf("chain %d, sample %d: temp=%d gain=%d " 1728 "power=%d pa_det=%d\n", c, j, 1729 chans[1].samples[c][j].temp, 1730 chans[1].samples[c][j].gain, 1731 chans[1].samples[c][j].power, 1732 chans[1].samples[c][j].pa_det); 1733 } 1734 } 1735 } 1736 #endif 1737 1738 static void 1739 iwn5000_read_eeprom(struct iwn_softc *sc) 1740 { 1741 struct iwn5000_eeprom_calib_hdr hdr; 1742 int32_t volt; 1743 uint32_t base, addr; 1744 uint16_t val; 1745 int i; 1746 1747 /* Read regulatory domain (4 ASCII characters). */ 1748 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 1749 base = le16toh(val); 1750 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN, 1751 sc->eeprom_domain, 4); 1752 1753 /* Read the list of authorized channels (20MHz ones only). */ 1754 for (i = 0; i < 7; i++) { 1755 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 1756 addr = base + iwn6000_regulatory_bands[i]; 1757 else 1758 addr = base + iwn5000_regulatory_bands[i]; 1759 iwn_read_eeprom_channels(sc, i, addr); 1760 } 1761 1762 /* Read enhanced TX power information for 6000 Series. */ 1763 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 1764 iwn_read_eeprom_enhinfo(sc); 1765 1766 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2); 1767 base = le16toh(val); 1768 iwn_read_prom_data(sc, base, &hdr, sizeof hdr); 1769 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 1770 "%s: calib version=%u pa type=%u voltage=%u\n", __func__, 1771 hdr.version, hdr.pa_type, le16toh(hdr.volt)); 1772 sc->calib_ver = hdr.version; 1773 1774 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 1775 /* Compute temperature offset. */ 1776 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 1777 sc->eeprom_temp = le16toh(val); 1778 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 1779 volt = le16toh(val); 1780 sc->temp_off = sc->eeprom_temp - (volt / -5); 1781 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n", 1782 sc->eeprom_temp, volt, sc->temp_off); 1783 } else { 1784 /* Read crystal calibration. */ 1785 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL, 1786 &sc->eeprom_crystal, sizeof (uint32_t)); 1787 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n", 1788 le32toh(sc->eeprom_crystal)); 1789 } 1790 } 1791 1792 /* 1793 * Translate EEPROM flags to net80211. 1794 */ 1795 static uint32_t 1796 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel) 1797 { 1798 uint32_t nflags; 1799 1800 nflags = 0; 1801 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0) 1802 nflags |= IEEE80211_CHAN_PASSIVE; 1803 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0) 1804 nflags |= IEEE80211_CHAN_NOADHOC; 1805 if (channel->flags & IWN_EEPROM_CHAN_RADAR) { 1806 nflags |= IEEE80211_CHAN_DFS; 1807 /* XXX apparently IBSS may still be marked */ 1808 nflags |= IEEE80211_CHAN_NOADHOC; 1809 } 1810 1811 return nflags; 1812 } 1813 1814 static void 1815 iwn_read_eeprom_band(struct iwn_softc *sc, int n) 1816 { 1817 struct ifnet *ifp = sc->sc_ifp; 1818 struct ieee80211com *ic = ifp->if_l2com; 1819 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 1820 const struct iwn_chan_band *band = &iwn_bands[n]; 1821 struct ieee80211_channel *c; 1822 uint8_t chan; 1823 int i, nflags; 1824 1825 for (i = 0; i < band->nchan; i++) { 1826 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 1827 DPRINTF(sc, IWN_DEBUG_RESET, 1828 "skip chan %d flags 0x%x maxpwr %d\n", 1829 band->chan[i], channels[i].flags, 1830 channels[i].maxpwr); 1831 continue; 1832 } 1833 chan = band->chan[i]; 1834 nflags = iwn_eeprom_channel_flags(&channels[i]); 1835 1836 c = &ic->ic_channels[ic->ic_nchans++]; 1837 c->ic_ieee = chan; 1838 c->ic_maxregpower = channels[i].maxpwr; 1839 c->ic_maxpower = 2*c->ic_maxregpower; 1840 1841 if (n == 0) { /* 2GHz band */ 1842 c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_G); 1843 /* G =>'s B is supported */ 1844 c->ic_flags = IEEE80211_CHAN_B | nflags; 1845 c = &ic->ic_channels[ic->ic_nchans++]; 1846 c[0] = c[-1]; 1847 c->ic_flags = IEEE80211_CHAN_G | nflags; 1848 } else { /* 5GHz band */ 1849 c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_A); 1850 c->ic_flags = IEEE80211_CHAN_A | nflags; 1851 } 1852 1853 /* Save maximum allowed TX power for this channel. */ 1854 sc->maxpwr[chan] = channels[i].maxpwr; 1855 1856 DPRINTF(sc, IWN_DEBUG_RESET, 1857 "add chan %d flags 0x%x maxpwr %d\n", chan, 1858 channels[i].flags, channels[i].maxpwr); 1859 1860 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 1861 /* add HT20, HT40 added separately */ 1862 c = &ic->ic_channels[ic->ic_nchans++]; 1863 c[0] = c[-1]; 1864 c->ic_flags |= IEEE80211_CHAN_HT20; 1865 } 1866 } 1867 } 1868 1869 static void 1870 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n) 1871 { 1872 struct ifnet *ifp = sc->sc_ifp; 1873 struct ieee80211com *ic = ifp->if_l2com; 1874 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 1875 const struct iwn_chan_band *band = &iwn_bands[n]; 1876 struct ieee80211_channel *c, *cent, *extc; 1877 uint8_t chan; 1878 int i, nflags; 1879 1880 if (!(sc->sc_flags & IWN_FLAG_HAS_11N)) 1881 return; 1882 1883 for (i = 0; i < band->nchan; i++) { 1884 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 1885 DPRINTF(sc, IWN_DEBUG_RESET, 1886 "skip chan %d flags 0x%x maxpwr %d\n", 1887 band->chan[i], channels[i].flags, 1888 channels[i].maxpwr); 1889 continue; 1890 } 1891 chan = band->chan[i]; 1892 nflags = iwn_eeprom_channel_flags(&channels[i]); 1893 1894 /* 1895 * Each entry defines an HT40 channel pair; find the 1896 * center channel, then the extension channel above. 1897 */ 1898 cent = ieee80211_find_channel_byieee(ic, chan, 1899 (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A)); 1900 if (cent == NULL) { /* XXX shouldn't happen */ 1901 device_printf(sc->sc_dev, 1902 "%s: no entry for channel %d\n", __func__, chan); 1903 continue; 1904 } 1905 extc = ieee80211_find_channel(ic, cent->ic_freq+20, 1906 (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A)); 1907 if (extc == NULL) { 1908 DPRINTF(sc, IWN_DEBUG_RESET, 1909 "%s: skip chan %d, extension channel not found\n", 1910 __func__, chan); 1911 continue; 1912 } 1913 1914 DPRINTF(sc, IWN_DEBUG_RESET, 1915 "add ht40 chan %d flags 0x%x maxpwr %d\n", 1916 chan, channels[i].flags, channels[i].maxpwr); 1917 1918 c = &ic->ic_channels[ic->ic_nchans++]; 1919 c[0] = cent[0]; 1920 c->ic_extieee = extc->ic_ieee; 1921 c->ic_flags &= ~IEEE80211_CHAN_HT; 1922 c->ic_flags |= IEEE80211_CHAN_HT40U | nflags; 1923 c = &ic->ic_channels[ic->ic_nchans++]; 1924 c[0] = extc[0]; 1925 c->ic_extieee = cent->ic_ieee; 1926 c->ic_flags &= ~IEEE80211_CHAN_HT; 1927 c->ic_flags |= IEEE80211_CHAN_HT40D | nflags; 1928 } 1929 } 1930 1931 static void 1932 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr) 1933 { 1934 struct ifnet *ifp = sc->sc_ifp; 1935 struct ieee80211com *ic = ifp->if_l2com; 1936 1937 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n], 1938 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan)); 1939 1940 if (n < 5) 1941 iwn_read_eeprom_band(sc, n); 1942 else 1943 iwn_read_eeprom_ht40(sc, n); 1944 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 1945 } 1946 1947 static struct iwn_eeprom_chan * 1948 iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c) 1949 { 1950 int band, chan, i, j; 1951 1952 if (IEEE80211_IS_CHAN_HT40(c)) { 1953 band = IEEE80211_IS_CHAN_5GHZ(c) ? 6 : 5; 1954 if (IEEE80211_IS_CHAN_HT40D(c)) 1955 chan = c->ic_extieee; 1956 else 1957 chan = c->ic_ieee; 1958 for (i = 0; i < iwn_bands[band].nchan; i++) { 1959 if (iwn_bands[band].chan[i] == chan) 1960 return &sc->eeprom_channels[band][i]; 1961 } 1962 } else { 1963 for (j = 0; j < 5; j++) { 1964 for (i = 0; i < iwn_bands[j].nchan; i++) { 1965 if (iwn_bands[j].chan[i] == c->ic_ieee) 1966 return &sc->eeprom_channels[j][i]; 1967 } 1968 } 1969 } 1970 return NULL; 1971 } 1972 1973 /* 1974 * Enforce flags read from EEPROM. 1975 */ 1976 static int 1977 iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 1978 int nchan, struct ieee80211_channel chans[]) 1979 { 1980 struct iwn_softc *sc = ic->ic_ifp->if_softc; 1981 int i; 1982 1983 for (i = 0; i < nchan; i++) { 1984 struct ieee80211_channel *c = &chans[i]; 1985 struct iwn_eeprom_chan *channel; 1986 1987 channel = iwn_find_eeprom_channel(sc, c); 1988 if (channel == NULL) { 1989 if_printf(ic->ic_ifp, 1990 "%s: invalid channel %u freq %u/0x%x\n", 1991 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 1992 return EINVAL; 1993 } 1994 c->ic_flags |= iwn_eeprom_channel_flags(channel); 1995 } 1996 1997 return 0; 1998 } 1999 2000 static void 2001 iwn_read_eeprom_enhinfo(struct iwn_softc *sc) 2002 { 2003 struct iwn_eeprom_enhinfo enhinfo[35]; 2004 struct ifnet *ifp = sc->sc_ifp; 2005 struct ieee80211com *ic = ifp->if_l2com; 2006 struct ieee80211_channel *c; 2007 uint16_t val, base; 2008 int8_t maxpwr; 2009 uint8_t flags; 2010 int i, j; 2011 2012 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2013 base = le16toh(val); 2014 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO, 2015 enhinfo, sizeof enhinfo); 2016 2017 for (i = 0; i < nitems(enhinfo); i++) { 2018 flags = enhinfo[i].flags; 2019 if (!(flags & IWN_ENHINFO_VALID)) 2020 continue; /* Skip invalid entries. */ 2021 2022 maxpwr = 0; 2023 if (sc->txchainmask & IWN_ANT_A) 2024 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]); 2025 if (sc->txchainmask & IWN_ANT_B) 2026 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]); 2027 if (sc->txchainmask & IWN_ANT_C) 2028 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]); 2029 if (sc->ntxchains == 2) 2030 maxpwr = MAX(maxpwr, enhinfo[i].mimo2); 2031 else if (sc->ntxchains == 3) 2032 maxpwr = MAX(maxpwr, enhinfo[i].mimo3); 2033 2034 for (j = 0; j < ic->ic_nchans; j++) { 2035 c = &ic->ic_channels[j]; 2036 if ((flags & IWN_ENHINFO_5GHZ)) { 2037 if (!IEEE80211_IS_CHAN_A(c)) 2038 continue; 2039 } else if ((flags & IWN_ENHINFO_OFDM)) { 2040 if (!IEEE80211_IS_CHAN_G(c)) 2041 continue; 2042 } else if (!IEEE80211_IS_CHAN_B(c)) 2043 continue; 2044 if ((flags & IWN_ENHINFO_HT40)) { 2045 if (!IEEE80211_IS_CHAN_HT40(c)) 2046 continue; 2047 } else { 2048 if (IEEE80211_IS_CHAN_HT40(c)) 2049 continue; 2050 } 2051 if (enhinfo[i].chan != 0 && 2052 enhinfo[i].chan != c->ic_ieee) 2053 continue; 2054 2055 DPRINTF(sc, IWN_DEBUG_RESET, 2056 "channel %d(%x), maxpwr %d\n", c->ic_ieee, 2057 c->ic_flags, maxpwr / 2); 2058 c->ic_maxregpower = maxpwr / 2; 2059 c->ic_maxpower = maxpwr; 2060 } 2061 } 2062 } 2063 2064 static struct ieee80211_node * 2065 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2066 { 2067 return malloc(sizeof (struct iwn_node), M_80211_NODE,M_NOWAIT | M_ZERO); 2068 } 2069 2070 static __inline int 2071 rate2plcp(int rate) 2072 { 2073 switch (rate & 0xff) { 2074 case 12: return 0xd; 2075 case 18: return 0xf; 2076 case 24: return 0x5; 2077 case 36: return 0x7; 2078 case 48: return 0x9; 2079 case 72: return 0xb; 2080 case 96: return 0x1; 2081 case 108: return 0x3; 2082 case 2: return 10; 2083 case 4: return 20; 2084 case 11: return 55; 2085 case 22: return 110; 2086 } 2087 return 0; 2088 } 2089 2090 static void 2091 iwn_newassoc(struct ieee80211_node *ni, int isnew) 2092 { 2093 #define RV(v) ((v) & IEEE80211_RATE_VAL) 2094 struct ieee80211com *ic = ni->ni_ic; 2095 struct iwn_softc *sc = ic->ic_ifp->if_softc; 2096 struct iwn_node *wn = (void *)ni; 2097 uint8_t txant1, txant2; 2098 int i, plcp, rate, ridx; 2099 2100 /* Use the first valid TX antenna. */ 2101 txant1 = IWN_LSB(sc->txchainmask); 2102 txant2 = IWN_LSB(sc->txchainmask & ~txant1); 2103 2104 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 2105 ridx = ni->ni_rates.rs_nrates - 1; 2106 for (i = ni->ni_htrates.rs_nrates - 1; i >= 0; i--) { 2107 plcp = RV(ni->ni_htrates.rs_rates[i]) | IWN_RFLAG_MCS; 2108 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 2109 plcp |= IWN_RFLAG_HT40; 2110 if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) 2111 plcp |= IWN_RFLAG_SGI; 2112 } else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) 2113 plcp |= IWN_RFLAG_SGI; 2114 if (RV(ni->ni_htrates.rs_rates[i]) > 7) 2115 plcp |= IWN_RFLAG_ANT(txant1 | txant2); 2116 else 2117 plcp |= IWN_RFLAG_ANT(txant1); 2118 if (ridx >= 0) { 2119 rate = RV(ni->ni_rates.rs_rates[ridx]); 2120 wn->ridx[rate] = plcp; 2121 } 2122 wn->ridx[IEEE80211_RATE_MCS | i] = plcp; 2123 ridx--; 2124 } 2125 } else { 2126 for (i = 0; i < ni->ni_rates.rs_nrates; i++) { 2127 rate = RV(ni->ni_rates.rs_rates[i]); 2128 plcp = rate2plcp(rate); 2129 ridx = ic->ic_rt->rateCodeToIndex[rate]; 2130 if (ridx < IWN_RIDX_OFDM6 && 2131 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2132 plcp |= IWN_RFLAG_CCK; 2133 plcp |= IWN_RFLAG_ANT(txant1); 2134 wn->ridx[rate] = htole32(plcp); 2135 } 2136 } 2137 #undef RV 2138 } 2139 2140 static int 2141 iwn_media_change(struct ifnet *ifp) 2142 { 2143 int error; 2144 2145 error = ieee80211_media_change(ifp); 2146 /* NB: only the fixed rate can change and that doesn't need a reset */ 2147 return (error == ENETRESET ? 0 : error); 2148 } 2149 2150 static int 2151 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2152 { 2153 struct iwn_vap *ivp = IWN_VAP(vap); 2154 struct ieee80211com *ic = vap->iv_ic; 2155 struct iwn_softc *sc = ic->ic_ifp->if_softc; 2156 int error = 0; 2157 2158 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__, 2159 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]); 2160 2161 IEEE80211_UNLOCK(ic); 2162 IWN_LOCK(sc); 2163 callout_stop(&sc->calib_to); 2164 2165 switch (nstate) { 2166 case IEEE80211_S_ASSOC: 2167 if (vap->iv_state != IEEE80211_S_RUN) 2168 break; 2169 /* FALLTHROUGH */ 2170 case IEEE80211_S_AUTH: 2171 if (vap->iv_state == IEEE80211_S_AUTH) 2172 break; 2173 2174 /* 2175 * !AUTH -> AUTH transition requires state reset to handle 2176 * reassociations correctly. 2177 */ 2178 sc->rxon.associd = 0; 2179 sc->rxon.filter &= ~htole32(IWN_FILTER_BSS); 2180 sc->calib.state = IWN_CALIB_STATE_INIT; 2181 2182 if ((error = iwn_auth(sc, vap)) != 0) { 2183 device_printf(sc->sc_dev, 2184 "%s: could not move to auth state\n", __func__); 2185 } 2186 break; 2187 2188 case IEEE80211_S_RUN: 2189 /* 2190 * RUN -> RUN transition; Just restart the timers. 2191 */ 2192 if (vap->iv_state == IEEE80211_S_RUN) { 2193 sc->calib_cnt = 0; 2194 break; 2195 } 2196 2197 /* 2198 * !RUN -> RUN requires setting the association id 2199 * which is done with a firmware cmd. We also defer 2200 * starting the timers until that work is done. 2201 */ 2202 if ((error = iwn_run(sc, vap)) != 0) { 2203 device_printf(sc->sc_dev, 2204 "%s: could not move to run state\n", __func__); 2205 } 2206 break; 2207 2208 case IEEE80211_S_INIT: 2209 sc->calib.state = IWN_CALIB_STATE_INIT; 2210 break; 2211 2212 default: 2213 break; 2214 } 2215 IWN_UNLOCK(sc); 2216 IEEE80211_LOCK(ic); 2217 if (error != 0) 2218 return error; 2219 return ivp->iv_newstate(vap, nstate, arg); 2220 } 2221 2222 static void 2223 iwn_calib_timeout(void *arg) 2224 { 2225 struct iwn_softc *sc = arg; 2226 2227 IWN_LOCK_ASSERT(sc); 2228 2229 /* Force automatic TX power calibration every 60 secs. */ 2230 if (++sc->calib_cnt >= 120) { 2231 uint32_t flags = 0; 2232 2233 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n", 2234 "sending request for statistics"); 2235 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, 2236 sizeof flags, 1); 2237 sc->calib_cnt = 0; 2238 } 2239 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 2240 sc); 2241 } 2242 2243 /* 2244 * Process an RX_PHY firmware notification. This is usually immediately 2245 * followed by an MPDU_RX_DONE notification. 2246 */ 2247 static void 2248 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2249 struct iwn_rx_data *data) 2250 { 2251 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1); 2252 2253 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__); 2254 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2255 2256 /* Save RX statistics, they will be used on MPDU_RX_DONE. */ 2257 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 2258 sc->last_rx_valid = 1; 2259 } 2260 2261 /* 2262 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification. 2263 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one. 2264 */ 2265 static void 2266 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2267 struct iwn_rx_data *data) 2268 { 2269 struct iwn_ops *ops = &sc->ops; 2270 struct ifnet *ifp = sc->sc_ifp; 2271 struct ieee80211com *ic = ifp->if_l2com; 2272 struct iwn_rx_ring *ring = &sc->rxq; 2273 struct ieee80211_frame *wh; 2274 struct ieee80211_node *ni; 2275 struct mbuf *m, *m1; 2276 struct iwn_rx_stat *stat; 2277 caddr_t head; 2278 bus_addr_t paddr; 2279 uint32_t flags; 2280 int error, len, rssi, nf; 2281 2282 if (desc->type == IWN_MPDU_RX_DONE) { 2283 /* Check for prior RX_PHY notification. */ 2284 if (!sc->last_rx_valid) { 2285 DPRINTF(sc, IWN_DEBUG_ANY, 2286 "%s: missing RX_PHY\n", __func__); 2287 return; 2288 } 2289 stat = &sc->last_rx_stat; 2290 } else 2291 stat = (struct iwn_rx_stat *)(desc + 1); 2292 2293 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2294 2295 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 2296 device_printf(sc->sc_dev, 2297 "%s: invalid RX statistic header, len %d\n", __func__, 2298 stat->cfg_phy_len); 2299 return; 2300 } 2301 if (desc->type == IWN_MPDU_RX_DONE) { 2302 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1); 2303 head = (caddr_t)(mpdu + 1); 2304 len = le16toh(mpdu->len); 2305 } else { 2306 head = (caddr_t)(stat + 1) + stat->cfg_phy_len; 2307 len = le16toh(stat->len); 2308 } 2309 2310 flags = le32toh(*(uint32_t *)(head + len)); 2311 2312 /* Discard frames with a bad FCS early. */ 2313 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 2314 DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n", 2315 __func__, flags); 2316 ifp->if_ierrors++; 2317 return; 2318 } 2319 /* Discard frames that are too short. */ 2320 if (len < sizeof (*wh)) { 2321 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n", 2322 __func__, len); 2323 ifp->if_ierrors++; 2324 return; 2325 } 2326 2327 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE); 2328 if (m1 == NULL) { 2329 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n", 2330 __func__); 2331 ifp->if_ierrors++; 2332 return; 2333 } 2334 bus_dmamap_unload(ring->data_dmat, data->map); 2335 2336 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *), 2337 IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 2338 if (error != 0 && error != EFBIG) { 2339 device_printf(sc->sc_dev, 2340 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 2341 m_freem(m1); 2342 2343 /* Try to reload the old mbuf. */ 2344 error = bus_dmamap_load(ring->data_dmat, data->map, 2345 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 2346 &paddr, BUS_DMA_NOWAIT); 2347 if (error != 0 && error != EFBIG) { 2348 panic("%s: could not load old RX mbuf", __func__); 2349 } 2350 /* Physical address may have changed. */ 2351 ring->desc[ring->cur] = htole32(paddr >> 8); 2352 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map, 2353 BUS_DMASYNC_PREWRITE); 2354 ifp->if_ierrors++; 2355 return; 2356 } 2357 2358 m = data->m; 2359 data->m = m1; 2360 /* Update RX descriptor. */ 2361 ring->desc[ring->cur] = htole32(paddr >> 8); 2362 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2363 BUS_DMASYNC_PREWRITE); 2364 2365 /* Finalize mbuf. */ 2366 m->m_pkthdr.rcvif = ifp; 2367 m->m_data = head; 2368 m->m_pkthdr.len = m->m_len = len; 2369 2370 /* Grab a reference to the source node. */ 2371 wh = mtod(m, struct ieee80211_frame *); 2372 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2373 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN && 2374 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95; 2375 2376 rssi = ops->get_rssi(sc, stat); 2377 2378 if (ieee80211_radiotap_active(ic)) { 2379 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 2380 2381 tap->wr_flags = 0; 2382 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) 2383 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 2384 tap->wr_dbm_antsignal = (int8_t)rssi; 2385 tap->wr_dbm_antnoise = (int8_t)nf; 2386 tap->wr_tsft = stat->tstamp; 2387 switch (stat->rate) { 2388 /* CCK rates. */ 2389 case 10: tap->wr_rate = 2; break; 2390 case 20: tap->wr_rate = 4; break; 2391 case 55: tap->wr_rate = 11; break; 2392 case 110: tap->wr_rate = 22; break; 2393 /* OFDM rates. */ 2394 case 0xd: tap->wr_rate = 12; break; 2395 case 0xf: tap->wr_rate = 18; break; 2396 case 0x5: tap->wr_rate = 24; break; 2397 case 0x7: tap->wr_rate = 36; break; 2398 case 0x9: tap->wr_rate = 48; break; 2399 case 0xb: tap->wr_rate = 72; break; 2400 case 0x1: tap->wr_rate = 96; break; 2401 case 0x3: tap->wr_rate = 108; break; 2402 /* Unknown rate: should not happen. */ 2403 default: tap->wr_rate = 0; 2404 } 2405 } 2406 2407 IWN_UNLOCK(sc); 2408 2409 /* Send the frame to the 802.11 layer. */ 2410 if (ni != NULL) { 2411 if (ni->ni_flags & IEEE80211_NODE_HT) 2412 m->m_flags |= M_AMPDU; 2413 (void)ieee80211_input(ni, m, rssi - nf, nf); 2414 /* Node is no longer needed. */ 2415 ieee80211_free_node(ni); 2416 } else 2417 (void)ieee80211_input_all(ic, m, rssi - nf, nf); 2418 2419 IWN_LOCK(sc); 2420 } 2421 2422 /* Process an incoming Compressed BlockAck. */ 2423 static void 2424 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2425 struct iwn_rx_data *data) 2426 { 2427 struct iwn_ops *ops = &sc->ops; 2428 struct ifnet *ifp = sc->sc_ifp; 2429 struct iwn_node *wn; 2430 struct ieee80211_node *ni; 2431 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1); 2432 struct iwn_tx_ring *txq; 2433 struct iwn_tx_data *txdata; 2434 struct ieee80211_tx_ampdu *tap; 2435 struct mbuf *m; 2436 uint64_t bitmap; 2437 uint16_t ssn; 2438 uint8_t tid; 2439 int ackfailcnt = 0, i, lastidx, qid, *res, shift; 2440 2441 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2442 2443 qid = le16toh(ba->qid); 2444 txq = &sc->txq[ba->qid]; 2445 tap = sc->qid2tap[ba->qid]; 2446 tid = WME_AC_TO_TID(tap->txa_ac); 2447 wn = (void *)tap->txa_ni; 2448 2449 res = NULL; 2450 ssn = 0; 2451 if (!IEEE80211_AMPDU_RUNNING(tap)) { 2452 res = tap->txa_private; 2453 ssn = tap->txa_start & 0xfff; 2454 } 2455 2456 for (lastidx = le16toh(ba->ssn) & 0xff; txq->read != lastidx;) { 2457 txdata = &txq->data[txq->read]; 2458 2459 /* Unmap and free mbuf. */ 2460 bus_dmamap_sync(txq->data_dmat, txdata->map, 2461 BUS_DMASYNC_POSTWRITE); 2462 bus_dmamap_unload(txq->data_dmat, txdata->map); 2463 m = txdata->m, txdata->m = NULL; 2464 ni = txdata->ni, txdata->ni = NULL; 2465 2466 KASSERT(ni != NULL, ("no node")); 2467 KASSERT(m != NULL, ("no mbuf")); 2468 2469 if (m->m_flags & M_TXCB) 2470 ieee80211_process_callback(ni, m, 1); 2471 2472 m_freem(m); 2473 ieee80211_free_node(ni); 2474 2475 txq->queued--; 2476 txq->read = (txq->read + 1) % IWN_TX_RING_COUNT; 2477 } 2478 2479 if (txq->queued == 0 && res != NULL) { 2480 iwn_nic_lock(sc); 2481 ops->ampdu_tx_stop(sc, qid, tid, ssn); 2482 iwn_nic_unlock(sc); 2483 sc->qid2tap[qid] = NULL; 2484 free(res, M_DEVBUF); 2485 return; 2486 } 2487 2488 if (wn->agg[tid].bitmap == 0) 2489 return; 2490 2491 shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff); 2492 if (shift < 0) 2493 shift += 0x100; 2494 2495 if (wn->agg[tid].nframes > (64 - shift)) 2496 return; 2497 2498 ni = tap->txa_ni; 2499 bitmap = (le64toh(ba->bitmap) >> shift) & wn->agg[tid].bitmap; 2500 for (i = 0; bitmap; i++) { 2501 if ((bitmap & 1) == 0) { 2502 ifp->if_oerrors++; 2503 ieee80211_ratectl_tx_complete(ni->ni_vap, ni, 2504 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL); 2505 } else { 2506 ifp->if_opackets++; 2507 ieee80211_ratectl_tx_complete(ni->ni_vap, ni, 2508 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL); 2509 } 2510 bitmap >>= 1; 2511 } 2512 } 2513 2514 /* 2515 * Process a CALIBRATION_RESULT notification sent by the initialization 2516 * firmware on response to a CMD_CALIB_CONFIG command (5000 only). 2517 */ 2518 static void 2519 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2520 struct iwn_rx_data *data) 2521 { 2522 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1); 2523 int len, idx = -1; 2524 2525 /* Runtime firmware should not send such a notification. */ 2526 if (sc->sc_flags & IWN_FLAG_CALIB_DONE) 2527 return; 2528 2529 len = (le32toh(desc->len) & 0x3fff) - 4; 2530 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2531 2532 switch (calib->code) { 2533 case IWN5000_PHY_CALIB_DC: 2534 if ((sc->sc_flags & IWN_FLAG_INTERNAL_PA) == 0 && 2535 (sc->hw_type == IWN_HW_REV_TYPE_5150 || 2536 sc->hw_type >= IWN_HW_REV_TYPE_6000) && 2537 sc->hw_type != IWN_HW_REV_TYPE_6050) 2538 idx = 0; 2539 break; 2540 case IWN5000_PHY_CALIB_LO: 2541 idx = 1; 2542 break; 2543 case IWN5000_PHY_CALIB_TX_IQ: 2544 idx = 2; 2545 break; 2546 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC: 2547 if (sc->hw_type < IWN_HW_REV_TYPE_6000 && 2548 sc->hw_type != IWN_HW_REV_TYPE_5150) 2549 idx = 3; 2550 break; 2551 case IWN5000_PHY_CALIB_BASE_BAND: 2552 idx = 4; 2553 break; 2554 } 2555 if (idx == -1) /* Ignore other results. */ 2556 return; 2557 2558 /* Save calibration result. */ 2559 if (sc->calibcmd[idx].buf != NULL) 2560 free(sc->calibcmd[idx].buf, M_DEVBUF); 2561 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT); 2562 if (sc->calibcmd[idx].buf == NULL) { 2563 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2564 "not enough memory for calibration result %d\n", 2565 calib->code); 2566 return; 2567 } 2568 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2569 "saving calibration result code=%d len=%d\n", calib->code, len); 2570 sc->calibcmd[idx].len = len; 2571 memcpy(sc->calibcmd[idx].buf, calib, len); 2572 } 2573 2574 /* 2575 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification. 2576 * The latter is sent by the firmware after each received beacon. 2577 */ 2578 static void 2579 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2580 struct iwn_rx_data *data) 2581 { 2582 struct iwn_ops *ops = &sc->ops; 2583 struct ifnet *ifp = sc->sc_ifp; 2584 struct ieee80211com *ic = ifp->if_l2com; 2585 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2586 struct iwn_calib_state *calib = &sc->calib; 2587 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 2588 int temp; 2589 2590 /* Ignore statistics received during a scan. */ 2591 if (vap->iv_state != IEEE80211_S_RUN || 2592 (ic->ic_flags & IEEE80211_F_SCAN)) 2593 return; 2594 2595 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2596 2597 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received statistics, cmd %d\n", 2598 __func__, desc->type); 2599 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */ 2600 2601 /* Test if temperature has changed. */ 2602 if (stats->general.temp != sc->rawtemp) { 2603 /* Convert "raw" temperature to degC. */ 2604 sc->rawtemp = stats->general.temp; 2605 temp = ops->get_temperature(sc); 2606 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n", 2607 __func__, temp); 2608 2609 /* Update TX power if need be (4965AGN only). */ 2610 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 2611 iwn4965_power_calibration(sc, temp); 2612 } 2613 2614 if (desc->type != IWN_BEACON_STATISTICS) 2615 return; /* Reply to a statistics request. */ 2616 2617 sc->noise = iwn_get_noise(&stats->rx.general); 2618 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise); 2619 2620 /* Test that RSSI and noise are present in stats report. */ 2621 if (le32toh(stats->rx.general.flags) != 1) { 2622 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", 2623 "received statistics without RSSI"); 2624 return; 2625 } 2626 2627 if (calib->state == IWN_CALIB_STATE_ASSOC) 2628 iwn_collect_noise(sc, &stats->rx.general); 2629 else if (calib->state == IWN_CALIB_STATE_RUN) 2630 iwn_tune_sensitivity(sc, &stats->rx); 2631 } 2632 2633 /* 2634 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN 2635 * and 5000 adapters have different incompatible TX status formats. 2636 */ 2637 static void 2638 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2639 struct iwn_rx_data *data) 2640 { 2641 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1); 2642 struct iwn_tx_ring *ring; 2643 int qid; 2644 2645 qid = desc->qid & 0xf; 2646 ring = &sc->txq[qid]; 2647 2648 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 2649 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n", 2650 __func__, desc->qid, desc->idx, stat->ackfailcnt, 2651 stat->btkillcnt, stat->rate, le16toh(stat->duration), 2652 le32toh(stat->status)); 2653 2654 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2655 if (qid >= sc->firstaggqueue) { 2656 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes, 2657 &stat->status); 2658 } else { 2659 iwn_tx_done(sc, desc, stat->ackfailcnt, 2660 le32toh(stat->status) & 0xff); 2661 } 2662 } 2663 2664 static void 2665 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2666 struct iwn_rx_data *data) 2667 { 2668 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1); 2669 struct iwn_tx_ring *ring; 2670 int qid; 2671 2672 qid = desc->qid & 0xf; 2673 ring = &sc->txq[qid]; 2674 2675 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 2676 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n", 2677 __func__, desc->qid, desc->idx, stat->ackfailcnt, 2678 stat->btkillcnt, stat->rate, le16toh(stat->duration), 2679 le32toh(stat->status)); 2680 2681 #ifdef notyet 2682 /* Reset TX scheduler slot. */ 2683 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx); 2684 #endif 2685 2686 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2687 if (qid >= sc->firstaggqueue) { 2688 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes, 2689 &stat->status); 2690 } else { 2691 iwn_tx_done(sc, desc, stat->ackfailcnt, 2692 le16toh(stat->status) & 0xff); 2693 } 2694 } 2695 2696 /* 2697 * Adapter-independent backend for TX_DONE firmware notifications. 2698 */ 2699 static void 2700 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt, 2701 uint8_t status) 2702 { 2703 struct ifnet *ifp = sc->sc_ifp; 2704 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 2705 struct iwn_tx_data *data = &ring->data[desc->idx]; 2706 struct mbuf *m; 2707 struct ieee80211_node *ni; 2708 struct ieee80211vap *vap; 2709 2710 KASSERT(data->ni != NULL, ("no node")); 2711 2712 /* Unmap and free mbuf. */ 2713 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 2714 bus_dmamap_unload(ring->data_dmat, data->map); 2715 m = data->m, data->m = NULL; 2716 ni = data->ni, data->ni = NULL; 2717 vap = ni->ni_vap; 2718 2719 if (m->m_flags & M_TXCB) { 2720 /* 2721 * Channels marked for "radar" require traffic to be received 2722 * to unlock before we can transmit. Until traffic is seen 2723 * any attempt to transmit is returned immediately with status 2724 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily 2725 * happen on first authenticate after scanning. To workaround 2726 * this we ignore a failure of this sort in AUTH state so the 2727 * 802.11 layer will fall back to using a timeout to wait for 2728 * the AUTH reply. This allows the firmware time to see 2729 * traffic so a subsequent retry of AUTH succeeds. It's 2730 * unclear why the firmware does not maintain state for 2731 * channels recently visited as this would allow immediate 2732 * use of the channel after a scan (where we see traffic). 2733 */ 2734 if (status == IWN_TX_FAIL_TX_LOCKED && 2735 ni->ni_vap->iv_state == IEEE80211_S_AUTH) 2736 ieee80211_process_callback(ni, m, 0); 2737 else 2738 ieee80211_process_callback(ni, m, 2739 (status & IWN_TX_FAIL) != 0); 2740 } 2741 2742 /* 2743 * Update rate control statistics for the node. 2744 */ 2745 if (status & IWN_TX_FAIL) { 2746 ifp->if_oerrors++; 2747 ieee80211_ratectl_tx_complete(vap, ni, 2748 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL); 2749 } else { 2750 ifp->if_opackets++; 2751 ieee80211_ratectl_tx_complete(vap, ni, 2752 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL); 2753 } 2754 m_freem(m); 2755 ieee80211_free_node(ni); 2756 2757 sc->sc_tx_timer = 0; 2758 if (--ring->queued < IWN_TX_RING_LOMARK) { 2759 sc->qfullmsk &= ~(1 << ring->qid); 2760 if (sc->qfullmsk == 0 && 2761 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) { 2762 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2763 iwn_start_locked(ifp); 2764 } 2765 } 2766 } 2767 2768 /* 2769 * Process a "command done" firmware notification. This is where we wakeup 2770 * processes waiting for a synchronous command completion. 2771 */ 2772 static void 2773 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc) 2774 { 2775 struct iwn_tx_ring *ring = &sc->txq[4]; 2776 struct iwn_tx_data *data; 2777 2778 if ((desc->qid & 0xf) != 4) 2779 return; /* Not a command ack. */ 2780 2781 data = &ring->data[desc->idx]; 2782 2783 /* If the command was mapped in an mbuf, free it. */ 2784 if (data->m != NULL) { 2785 bus_dmamap_sync(ring->data_dmat, data->map, 2786 BUS_DMASYNC_POSTWRITE); 2787 bus_dmamap_unload(ring->data_dmat, data->map); 2788 m_freem(data->m); 2789 data->m = NULL; 2790 } 2791 wakeup(&ring->desc[desc->idx]); 2792 } 2793 2794 static void 2795 iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int idx, int nframes, 2796 void *stat) 2797 { 2798 struct iwn_ops *ops = &sc->ops; 2799 struct ifnet *ifp = sc->sc_ifp; 2800 struct iwn_tx_ring *ring = &sc->txq[qid]; 2801 struct iwn_tx_data *data; 2802 struct mbuf *m; 2803 struct iwn_node *wn; 2804 struct ieee80211_node *ni; 2805 struct ieee80211_tx_ampdu *tap; 2806 uint64_t bitmap; 2807 uint32_t *status = stat; 2808 uint16_t *aggstatus = stat; 2809 uint16_t ssn; 2810 uint8_t tid; 2811 int bit, i, lastidx, *res, seqno, shift, start; 2812 2813 #ifdef NOT_YET 2814 if (nframes == 1) { 2815 if ((*status & 0xff) != 1 && (*status & 0xff) != 2) 2816 printf("ieee80211_send_bar()\n"); 2817 } 2818 #endif 2819 2820 bitmap = 0; 2821 start = idx; 2822 for (i = 0; i < nframes; i++) { 2823 if (le16toh(aggstatus[i * 2]) & 0xc) 2824 continue; 2825 2826 idx = le16toh(aggstatus[2*i + 1]) & 0xff; 2827 bit = idx - start; 2828 shift = 0; 2829 if (bit >= 64) { 2830 shift = 0x100 - idx + start; 2831 bit = 0; 2832 start = idx; 2833 } else if (bit <= -64) 2834 bit = 0x100 - start + idx; 2835 else if (bit < 0) { 2836 shift = start - idx; 2837 start = idx; 2838 bit = 0; 2839 } 2840 bitmap = bitmap << shift; 2841 bitmap |= 1ULL << bit; 2842 } 2843 tap = sc->qid2tap[qid]; 2844 tid = WME_AC_TO_TID(tap->txa_ac); 2845 wn = (void *)tap->txa_ni; 2846 wn->agg[tid].bitmap = bitmap; 2847 wn->agg[tid].startidx = start; 2848 wn->agg[tid].nframes = nframes; 2849 2850 res = NULL; 2851 ssn = 0; 2852 if (!IEEE80211_AMPDU_RUNNING(tap)) { 2853 res = tap->txa_private; 2854 ssn = tap->txa_start & 0xfff; 2855 } 2856 2857 seqno = le32toh(*(status + nframes)) & 0xfff; 2858 for (lastidx = (seqno & 0xff); ring->read != lastidx;) { 2859 data = &ring->data[ring->read]; 2860 2861 /* Unmap and free mbuf. */ 2862 bus_dmamap_sync(ring->data_dmat, data->map, 2863 BUS_DMASYNC_POSTWRITE); 2864 bus_dmamap_unload(ring->data_dmat, data->map); 2865 m = data->m, data->m = NULL; 2866 ni = data->ni, data->ni = NULL; 2867 2868 KASSERT(ni != NULL, ("no node")); 2869 KASSERT(m != NULL, ("no mbuf")); 2870 2871 if (m->m_flags & M_TXCB) 2872 ieee80211_process_callback(ni, m, 1); 2873 2874 m_freem(m); 2875 ieee80211_free_node(ni); 2876 2877 ring->queued--; 2878 ring->read = (ring->read + 1) % IWN_TX_RING_COUNT; 2879 } 2880 2881 if (ring->queued == 0 && res != NULL) { 2882 iwn_nic_lock(sc); 2883 ops->ampdu_tx_stop(sc, qid, tid, ssn); 2884 iwn_nic_unlock(sc); 2885 sc->qid2tap[qid] = NULL; 2886 free(res, M_DEVBUF); 2887 return; 2888 } 2889 2890 sc->sc_tx_timer = 0; 2891 if (ring->queued < IWN_TX_RING_LOMARK) { 2892 sc->qfullmsk &= ~(1 << ring->qid); 2893 if (sc->qfullmsk == 0 && 2894 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) { 2895 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2896 iwn_start_locked(ifp); 2897 } 2898 } 2899 } 2900 2901 /* 2902 * Process an INT_FH_RX or INT_SW_RX interrupt. 2903 */ 2904 static void 2905 iwn_notif_intr(struct iwn_softc *sc) 2906 { 2907 struct iwn_ops *ops = &sc->ops; 2908 struct ifnet *ifp = sc->sc_ifp; 2909 struct ieee80211com *ic = ifp->if_l2com; 2910 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2911 uint16_t hw; 2912 2913 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map, 2914 BUS_DMASYNC_POSTREAD); 2915 2916 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff; 2917 while (sc->rxq.cur != hw) { 2918 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 2919 struct iwn_rx_desc *desc; 2920 2921 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2922 BUS_DMASYNC_POSTREAD); 2923 desc = mtod(data->m, struct iwn_rx_desc *); 2924 2925 DPRINTF(sc, IWN_DEBUG_RECV, 2926 "%s: qid %x idx %d flags %x type %d(%s) len %d\n", 2927 __func__, desc->qid & 0xf, desc->idx, desc->flags, 2928 desc->type, iwn_intr_str(desc->type), 2929 le16toh(desc->len)); 2930 2931 if (!(desc->qid & 0x80)) /* Reply to a command. */ 2932 iwn_cmd_done(sc, desc); 2933 2934 switch (desc->type) { 2935 case IWN_RX_PHY: 2936 iwn_rx_phy(sc, desc, data); 2937 break; 2938 2939 case IWN_RX_DONE: /* 4965AGN only. */ 2940 case IWN_MPDU_RX_DONE: 2941 /* An 802.11 frame has been received. */ 2942 iwn_rx_done(sc, desc, data); 2943 break; 2944 2945 case IWN_RX_COMPRESSED_BA: 2946 /* A Compressed BlockAck has been received. */ 2947 iwn_rx_compressed_ba(sc, desc, data); 2948 break; 2949 2950 case IWN_TX_DONE: 2951 /* An 802.11 frame has been transmitted. */ 2952 ops->tx_done(sc, desc, data); 2953 break; 2954 2955 case IWN_RX_STATISTICS: 2956 case IWN_BEACON_STATISTICS: 2957 iwn_rx_statistics(sc, desc, data); 2958 break; 2959 2960 case IWN_BEACON_MISSED: 2961 { 2962 struct iwn_beacon_missed *miss = 2963 (struct iwn_beacon_missed *)(desc + 1); 2964 int misses; 2965 2966 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2967 BUS_DMASYNC_POSTREAD); 2968 misses = le32toh(miss->consecutive); 2969 2970 DPRINTF(sc, IWN_DEBUG_STATE, 2971 "%s: beacons missed %d/%d\n", __func__, 2972 misses, le32toh(miss->total)); 2973 /* 2974 * If more than 5 consecutive beacons are missed, 2975 * reinitialize the sensitivity state machine. 2976 */ 2977 if (vap->iv_state == IEEE80211_S_RUN && 2978 (ic->ic_flags & IEEE80211_F_SCAN) == 0) { 2979 if (misses > 5) 2980 (void)iwn_init_sensitivity(sc); 2981 if (misses >= vap->iv_bmissthreshold) { 2982 IWN_UNLOCK(sc); 2983 ieee80211_beacon_miss(ic); 2984 IWN_LOCK(sc); 2985 } 2986 } 2987 break; 2988 } 2989 case IWN_UC_READY: 2990 { 2991 struct iwn_ucode_info *uc = 2992 (struct iwn_ucode_info *)(desc + 1); 2993 2994 /* The microcontroller is ready. */ 2995 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2996 BUS_DMASYNC_POSTREAD); 2997 DPRINTF(sc, IWN_DEBUG_RESET, 2998 "microcode alive notification version=%d.%d " 2999 "subtype=%x alive=%x\n", uc->major, uc->minor, 3000 uc->subtype, le32toh(uc->valid)); 3001 3002 if (le32toh(uc->valid) != 1) { 3003 device_printf(sc->sc_dev, 3004 "microcontroller initialization failed"); 3005 break; 3006 } 3007 if (uc->subtype == IWN_UCODE_INIT) { 3008 /* Save microcontroller report. */ 3009 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 3010 } 3011 /* Save the address of the error log in SRAM. */ 3012 sc->errptr = le32toh(uc->errptr); 3013 break; 3014 } 3015 case IWN_STATE_CHANGED: 3016 { 3017 uint32_t *status = (uint32_t *)(desc + 1); 3018 3019 /* 3020 * State change allows hardware switch change to be 3021 * noted. However, we handle this in iwn_intr as we 3022 * get both the enable/disble intr. 3023 */ 3024 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 3025 BUS_DMASYNC_POSTREAD); 3026 DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n", 3027 le32toh(*status)); 3028 break; 3029 } 3030 case IWN_START_SCAN: 3031 { 3032 struct iwn_start_scan *scan = 3033 (struct iwn_start_scan *)(desc + 1); 3034 3035 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 3036 BUS_DMASYNC_POSTREAD); 3037 DPRINTF(sc, IWN_DEBUG_ANY, 3038 "%s: scanning channel %d status %x\n", 3039 __func__, scan->chan, le32toh(scan->status)); 3040 break; 3041 } 3042 case IWN_STOP_SCAN: 3043 { 3044 struct iwn_stop_scan *scan = 3045 (struct iwn_stop_scan *)(desc + 1); 3046 3047 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 3048 BUS_DMASYNC_POSTREAD); 3049 DPRINTF(sc, IWN_DEBUG_STATE, 3050 "scan finished nchan=%d status=%d chan=%d\n", 3051 scan->nchan, scan->status, scan->chan); 3052 3053 IWN_UNLOCK(sc); 3054 ieee80211_scan_next(vap); 3055 IWN_LOCK(sc); 3056 break; 3057 } 3058 case IWN5000_CALIBRATION_RESULT: 3059 iwn5000_rx_calib_results(sc, desc, data); 3060 break; 3061 3062 case IWN5000_CALIBRATION_DONE: 3063 sc->sc_flags |= IWN_FLAG_CALIB_DONE; 3064 wakeup(sc); 3065 break; 3066 } 3067 3068 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 3069 } 3070 3071 /* Tell the firmware what we have processed. */ 3072 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 3073 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7); 3074 } 3075 3076 /* 3077 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 3078 * from power-down sleep mode. 3079 */ 3080 static void 3081 iwn_wakeup_intr(struct iwn_softc *sc) 3082 { 3083 int qid; 3084 3085 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n", 3086 __func__); 3087 3088 /* Wakeup RX and TX rings. */ 3089 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7); 3090 for (qid = 0; qid < sc->ntxqs; qid++) { 3091 struct iwn_tx_ring *ring = &sc->txq[qid]; 3092 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur); 3093 } 3094 } 3095 3096 static void 3097 iwn_rftoggle_intr(struct iwn_softc *sc) 3098 { 3099 struct ifnet *ifp = sc->sc_ifp; 3100 struct ieee80211com *ic = ifp->if_l2com; 3101 uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL); 3102 3103 IWN_LOCK_ASSERT(sc); 3104 3105 device_printf(sc->sc_dev, "RF switch: radio %s\n", 3106 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled"); 3107 if (tmp & IWN_GP_CNTRL_RFKILL) 3108 ieee80211_runtask(ic, &sc->sc_radioon_task); 3109 else 3110 ieee80211_runtask(ic, &sc->sc_radiooff_task); 3111 } 3112 3113 /* 3114 * Dump the error log of the firmware when a firmware panic occurs. Although 3115 * we can't debug the firmware because it is neither open source nor free, it 3116 * can help us to identify certain classes of problems. 3117 */ 3118 static void 3119 iwn_fatal_intr(struct iwn_softc *sc) 3120 { 3121 struct iwn_fw_dump dump; 3122 int i; 3123 3124 IWN_LOCK_ASSERT(sc); 3125 3126 /* Force a complete recalibration on next init. */ 3127 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE; 3128 3129 /* Check that the error log address is valid. */ 3130 if (sc->errptr < IWN_FW_DATA_BASE || 3131 sc->errptr + sizeof (dump) > 3132 IWN_FW_DATA_BASE + sc->fw_data_maxsz) { 3133 printf("%s: bad firmware error log address 0x%08x\n", __func__, 3134 sc->errptr); 3135 return; 3136 } 3137 if (iwn_nic_lock(sc) != 0) { 3138 printf("%s: could not read firmware error log\n", __func__); 3139 return; 3140 } 3141 /* Read firmware error log from SRAM. */ 3142 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump, 3143 sizeof (dump) / sizeof (uint32_t)); 3144 iwn_nic_unlock(sc); 3145 3146 if (dump.valid == 0) { 3147 printf("%s: firmware error log is empty\n", __func__); 3148 return; 3149 } 3150 printf("firmware error log:\n"); 3151 printf(" error type = \"%s\" (0x%08X)\n", 3152 (dump.id < nitems(iwn_fw_errmsg)) ? 3153 iwn_fw_errmsg[dump.id] : "UNKNOWN", 3154 dump.id); 3155 printf(" program counter = 0x%08X\n", dump.pc); 3156 printf(" source line = 0x%08X\n", dump.src_line); 3157 printf(" error data = 0x%08X%08X\n", 3158 dump.error_data[0], dump.error_data[1]); 3159 printf(" branch link = 0x%08X%08X\n", 3160 dump.branch_link[0], dump.branch_link[1]); 3161 printf(" interrupt link = 0x%08X%08X\n", 3162 dump.interrupt_link[0], dump.interrupt_link[1]); 3163 printf(" time = %u\n", dump.time[0]); 3164 3165 /* Dump driver status (TX and RX rings) while we're here. */ 3166 printf("driver status:\n"); 3167 for (i = 0; i < sc->ntxqs; i++) { 3168 struct iwn_tx_ring *ring = &sc->txq[i]; 3169 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 3170 i, ring->qid, ring->cur, ring->queued); 3171 } 3172 printf(" rx ring: cur=%d\n", sc->rxq.cur); 3173 } 3174 3175 static void 3176 iwn_intr(void *arg) 3177 { 3178 struct iwn_softc *sc = arg; 3179 struct ifnet *ifp = sc->sc_ifp; 3180 uint32_t r1, r2, tmp; 3181 3182 IWN_LOCK(sc); 3183 3184 /* Disable interrupts. */ 3185 IWN_WRITE(sc, IWN_INT_MASK, 0); 3186 3187 /* Read interrupts from ICT (fast) or from registers (slow). */ 3188 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 3189 tmp = 0; 3190 while (sc->ict[sc->ict_cur] != 0) { 3191 tmp |= sc->ict[sc->ict_cur]; 3192 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */ 3193 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT; 3194 } 3195 tmp = le32toh(tmp); 3196 if (tmp == 0xffffffff) /* Shouldn't happen. */ 3197 tmp = 0; 3198 else if (tmp & 0xc0000) /* Workaround a HW bug. */ 3199 tmp |= 0x8000; 3200 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff); 3201 r2 = 0; /* Unused. */ 3202 } else { 3203 r1 = IWN_READ(sc, IWN_INT); 3204 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) 3205 return; /* Hardware gone! */ 3206 r2 = IWN_READ(sc, IWN_FH_INT); 3207 } 3208 3209 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=%x reg2=%x\n", r1, r2); 3210 3211 if (r1 == 0 && r2 == 0) 3212 goto done; /* Interrupt not for us. */ 3213 3214 /* Acknowledge interrupts. */ 3215 IWN_WRITE(sc, IWN_INT, r1); 3216 if (!(sc->sc_flags & IWN_FLAG_USE_ICT)) 3217 IWN_WRITE(sc, IWN_FH_INT, r2); 3218 3219 if (r1 & IWN_INT_RF_TOGGLED) { 3220 iwn_rftoggle_intr(sc); 3221 goto done; 3222 } 3223 if (r1 & IWN_INT_CT_REACHED) { 3224 device_printf(sc->sc_dev, "%s: critical temperature reached!\n", 3225 __func__); 3226 } 3227 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) { 3228 device_printf(sc->sc_dev, "%s: fatal firmware error\n", 3229 __func__); 3230 /* Dump firmware error log and stop. */ 3231 iwn_fatal_intr(sc); 3232 ifp->if_flags &= ~IFF_UP; 3233 iwn_stop_locked(sc); 3234 goto done; 3235 } 3236 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) || 3237 (r2 & IWN_FH_INT_RX)) { 3238 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 3239 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) 3240 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX); 3241 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 3242 IWN_INT_PERIODIC_DIS); 3243 iwn_notif_intr(sc); 3244 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) { 3245 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 3246 IWN_INT_PERIODIC_ENA); 3247 } 3248 } else 3249 iwn_notif_intr(sc); 3250 } 3251 3252 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) { 3253 if (sc->sc_flags & IWN_FLAG_USE_ICT) 3254 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX); 3255 wakeup(sc); /* FH DMA transfer completed. */ 3256 } 3257 3258 if (r1 & IWN_INT_ALIVE) 3259 wakeup(sc); /* Firmware is alive. */ 3260 3261 if (r1 & IWN_INT_WAKEUP) 3262 iwn_wakeup_intr(sc); 3263 3264 done: 3265 /* Re-enable interrupts. */ 3266 if (ifp->if_flags & IFF_UP) 3267 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 3268 3269 IWN_UNLOCK(sc); 3270 } 3271 3272 /* 3273 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and 3274 * 5000 adapters use a slightly different format). 3275 */ 3276 static void 3277 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 3278 uint16_t len) 3279 { 3280 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx]; 3281 3282 *w = htole16(len + 8); 3283 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3284 BUS_DMASYNC_PREWRITE); 3285 if (idx < IWN_SCHED_WINSZ) { 3286 *(w + IWN_TX_RING_COUNT) = *w; 3287 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3288 BUS_DMASYNC_PREWRITE); 3289 } 3290 } 3291 3292 static void 3293 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 3294 uint16_t len) 3295 { 3296 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 3297 3298 *w = htole16(id << 12 | (len + 8)); 3299 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3300 BUS_DMASYNC_PREWRITE); 3301 if (idx < IWN_SCHED_WINSZ) { 3302 *(w + IWN_TX_RING_COUNT) = *w; 3303 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3304 BUS_DMASYNC_PREWRITE); 3305 } 3306 } 3307 3308 #ifdef notyet 3309 static void 3310 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx) 3311 { 3312 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 3313 3314 *w = (*w & htole16(0xf000)) | htole16(1); 3315 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3316 BUS_DMASYNC_PREWRITE); 3317 if (idx < IWN_SCHED_WINSZ) { 3318 *(w + IWN_TX_RING_COUNT) = *w; 3319 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3320 BUS_DMASYNC_PREWRITE); 3321 } 3322 } 3323 #endif 3324 3325 static int 3326 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 3327 { 3328 struct iwn_ops *ops = &sc->ops; 3329 const struct ieee80211_txparam *tp; 3330 struct ieee80211vap *vap = ni->ni_vap; 3331 struct ieee80211com *ic = ni->ni_ic; 3332 struct iwn_node *wn = (void *)ni; 3333 struct iwn_tx_ring *ring; 3334 struct iwn_tx_desc *desc; 3335 struct iwn_tx_data *data; 3336 struct iwn_tx_cmd *cmd; 3337 struct iwn_cmd_data *tx; 3338 struct ieee80211_frame *wh; 3339 struct ieee80211_key *k = NULL; 3340 struct mbuf *m1; 3341 uint32_t flags; 3342 uint16_t qos; 3343 u_int hdrlen; 3344 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 3345 uint8_t tid, ridx, txant, type; 3346 int ac, i, totlen, error, pad, nsegs = 0, rate; 3347 3348 IWN_LOCK_ASSERT(sc); 3349 3350 wh = mtod(m, struct ieee80211_frame *); 3351 hdrlen = ieee80211_anyhdrsize(wh); 3352 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3353 3354 /* Select EDCA Access Category and TX ring for this frame. */ 3355 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3356 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 3357 tid = qos & IEEE80211_QOS_TID; 3358 } else { 3359 qos = 0; 3360 tid = 0; 3361 } 3362 ac = M_WME_GETAC(m); 3363 if (m->m_flags & M_AMPDU_MPDU) { 3364 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac]; 3365 3366 if (!IEEE80211_AMPDU_RUNNING(tap)) { 3367 m_freem(m); 3368 return EINVAL; 3369 } 3370 3371 ac = *(int *)tap->txa_private; 3372 *(uint16_t *)wh->i_seq = 3373 htole16(ni->ni_txseqs[tid] << IEEE80211_SEQ_SEQ_SHIFT); 3374 ni->ni_txseqs[tid]++; 3375 } 3376 ring = &sc->txq[ac]; 3377 desc = &ring->desc[ring->cur]; 3378 data = &ring->data[ring->cur]; 3379 3380 /* Choose a TX rate index. */ 3381 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 3382 if (type == IEEE80211_FC0_TYPE_MGT) 3383 rate = tp->mgmtrate; 3384 else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 3385 rate = tp->mcastrate; 3386 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 3387 rate = tp->ucastrate; 3388 else { 3389 /* XXX pass pktlen */ 3390 (void) ieee80211_ratectl_rate(ni, NULL, 0); 3391 rate = ni->ni_txrate; 3392 } 3393 ridx = ic->ic_rt->rateCodeToIndex[rate]; 3394 3395 /* Encrypt the frame if need be. */ 3396 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 3397 /* Retrieve key for TX. */ 3398 k = ieee80211_crypto_encap(ni, m); 3399 if (k == NULL) { 3400 m_freem(m); 3401 return ENOBUFS; 3402 } 3403 /* 802.11 header may have moved. */ 3404 wh = mtod(m, struct ieee80211_frame *); 3405 } 3406 totlen = m->m_pkthdr.len; 3407 3408 if (ieee80211_radiotap_active_vap(vap)) { 3409 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 3410 3411 tap->wt_flags = 0; 3412 tap->wt_rate = rate; 3413 if (k != NULL) 3414 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3415 3416 ieee80211_radiotap_tx(vap, m); 3417 } 3418 3419 /* Prepare TX firmware command. */ 3420 cmd = &ring->cmd[ring->cur]; 3421 cmd->code = IWN_CMD_TX_DATA; 3422 cmd->flags = 0; 3423 cmd->qid = ring->qid; 3424 cmd->idx = ring->cur; 3425 3426 tx = (struct iwn_cmd_data *)cmd->data; 3427 /* NB: No need to clear tx, all fields are reinitialized here. */ 3428 tx->scratch = 0; /* clear "scratch" area */ 3429 3430 flags = 0; 3431 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3432 /* Unicast frame, check if an ACK is expected. */ 3433 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 3434 IEEE80211_QOS_ACKPOLICY_NOACK) 3435 flags |= IWN_TX_NEED_ACK; 3436 } 3437 if ((wh->i_fc[0] & 3438 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 3439 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR)) 3440 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */ 3441 3442 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 3443 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */ 3444 3445 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 3446 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3447 /* NB: Group frames are sent using CCK in 802.11b/g. */ 3448 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 3449 flags |= IWN_TX_NEED_RTS; 3450 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 3451 ridx >= IWN_RIDX_OFDM6) { 3452 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 3453 flags |= IWN_TX_NEED_CTS; 3454 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 3455 flags |= IWN_TX_NEED_RTS; 3456 } 3457 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) { 3458 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3459 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3460 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS); 3461 flags |= IWN_TX_NEED_PROTECTION; 3462 } else 3463 flags |= IWN_TX_FULL_TXOP; 3464 } 3465 } 3466 3467 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 3468 type != IEEE80211_FC0_TYPE_DATA) 3469 tx->id = sc->broadcast_id; 3470 else 3471 tx->id = wn->id; 3472 3473 if (type == IEEE80211_FC0_TYPE_MGT) { 3474 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3475 3476 /* Tell HW to set timestamp in probe responses. */ 3477 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 3478 flags |= IWN_TX_INSERT_TSTAMP; 3479 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 3480 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 3481 tx->timeout = htole16(3); 3482 else 3483 tx->timeout = htole16(2); 3484 } else 3485 tx->timeout = htole16(0); 3486 3487 if (hdrlen & 3) { 3488 /* First segment length must be a multiple of 4. */ 3489 flags |= IWN_TX_NEED_PADDING; 3490 pad = 4 - (hdrlen & 3); 3491 } else 3492 pad = 0; 3493 3494 tx->len = htole16(totlen); 3495 tx->tid = tid; 3496 tx->rts_ntries = 60; 3497 tx->data_ntries = 15; 3498 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3499 tx->rate = wn->ridx[rate]; 3500 if (tx->id == sc->broadcast_id) { 3501 /* Group or management frame. */ 3502 tx->linkq = 0; 3503 /* XXX Alternate between antenna A and B? */ 3504 txant = IWN_LSB(sc->txchainmask); 3505 tx->rate |= htole32(IWN_RFLAG_ANT(txant)); 3506 } else { 3507 tx->linkq = ni->ni_rates.rs_nrates - ridx - 1; 3508 flags |= IWN_TX_LINKQ; /* enable MRR */ 3509 } 3510 /* Set physical address of "scratch area". */ 3511 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 3512 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 3513 3514 /* Copy 802.11 header in TX command. */ 3515 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 3516 3517 /* Trim 802.11 header. */ 3518 m_adj(m, hdrlen); 3519 tx->security = 0; 3520 tx->flags = htole32(flags); 3521 3522 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 3523 &nsegs, BUS_DMA_NOWAIT); 3524 if (error != 0) { 3525 if (error != EFBIG) { 3526 device_printf(sc->sc_dev, 3527 "%s: can't map mbuf (error %d)\n", __func__, error); 3528 m_freem(m); 3529 return error; 3530 } 3531 /* Too many DMA segments, linearize mbuf. */ 3532 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER); 3533 if (m1 == NULL) { 3534 device_printf(sc->sc_dev, 3535 "%s: could not defrag mbuf\n", __func__); 3536 m_freem(m); 3537 return ENOBUFS; 3538 } 3539 m = m1; 3540 3541 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 3542 segs, &nsegs, BUS_DMA_NOWAIT); 3543 if (error != 0) { 3544 device_printf(sc->sc_dev, 3545 "%s: can't map mbuf (error %d)\n", __func__, error); 3546 m_freem(m); 3547 return error; 3548 } 3549 } 3550 3551 data->m = m; 3552 data->ni = ni; 3553 3554 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 3555 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs); 3556 3557 /* Fill TX descriptor. */ 3558 desc->nsegs = 1; 3559 if (m->m_len != 0) 3560 desc->nsegs += nsegs; 3561 /* First DMA segment is used by the TX command. */ 3562 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 3563 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 3564 (4 + sizeof (*tx) + hdrlen + pad) << 4); 3565 /* Other DMA segments are for data payload. */ 3566 seg = &segs[0]; 3567 for (i = 1; i <= nsegs; i++) { 3568 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 3569 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 3570 seg->ds_len << 4); 3571 seg++; 3572 } 3573 3574 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 3575 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3576 BUS_DMASYNC_PREWRITE); 3577 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3578 BUS_DMASYNC_PREWRITE); 3579 3580 /* Update TX scheduler. */ 3581 if (ring->qid >= sc->firstaggqueue) 3582 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 3583 3584 /* Kick TX ring. */ 3585 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3586 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3587 3588 /* Mark TX ring as full if we reach a certain threshold. */ 3589 if (++ring->queued > IWN_TX_RING_HIMARK) 3590 sc->qfullmsk |= 1 << ring->qid; 3591 3592 return 0; 3593 } 3594 3595 static int 3596 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m, 3597 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 3598 { 3599 struct iwn_ops *ops = &sc->ops; 3600 struct ifnet *ifp = sc->sc_ifp; 3601 struct ieee80211vap *vap = ni->ni_vap; 3602 struct ieee80211com *ic = ifp->if_l2com; 3603 struct iwn_tx_cmd *cmd; 3604 struct iwn_cmd_data *tx; 3605 struct ieee80211_frame *wh; 3606 struct iwn_tx_ring *ring; 3607 struct iwn_tx_desc *desc; 3608 struct iwn_tx_data *data; 3609 struct mbuf *m1; 3610 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 3611 uint32_t flags; 3612 u_int hdrlen; 3613 int ac, totlen, error, pad, nsegs = 0, i, rate; 3614 uint8_t ridx, type, txant; 3615 3616 IWN_LOCK_ASSERT(sc); 3617 3618 wh = mtod(m, struct ieee80211_frame *); 3619 hdrlen = ieee80211_anyhdrsize(wh); 3620 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3621 3622 ac = params->ibp_pri & 3; 3623 3624 ring = &sc->txq[ac]; 3625 desc = &ring->desc[ring->cur]; 3626 data = &ring->data[ring->cur]; 3627 3628 /* Choose a TX rate index. */ 3629 rate = params->ibp_rate0; 3630 ridx = ic->ic_rt->rateCodeToIndex[rate]; 3631 if (ridx == (uint8_t)-1) { 3632 /* XXX fall back to mcast/mgmt rate? */ 3633 m_freem(m); 3634 return EINVAL; 3635 } 3636 3637 totlen = m->m_pkthdr.len; 3638 3639 /* Prepare TX firmware command. */ 3640 cmd = &ring->cmd[ring->cur]; 3641 cmd->code = IWN_CMD_TX_DATA; 3642 cmd->flags = 0; 3643 cmd->qid = ring->qid; 3644 cmd->idx = ring->cur; 3645 3646 tx = (struct iwn_cmd_data *)cmd->data; 3647 /* NB: No need to clear tx, all fields are reinitialized here. */ 3648 tx->scratch = 0; /* clear "scratch" area */ 3649 3650 flags = 0; 3651 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 3652 flags |= IWN_TX_NEED_ACK; 3653 if (params->ibp_flags & IEEE80211_BPF_RTS) { 3654 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3655 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3656 flags &= ~IWN_TX_NEED_RTS; 3657 flags |= IWN_TX_NEED_PROTECTION; 3658 } else 3659 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 3660 } 3661 if (params->ibp_flags & IEEE80211_BPF_CTS) { 3662 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3663 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3664 flags &= ~IWN_TX_NEED_CTS; 3665 flags |= IWN_TX_NEED_PROTECTION; 3666 } else 3667 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 3668 } 3669 if (type == IEEE80211_FC0_TYPE_MGT) { 3670 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3671 3672 /* Tell HW to set timestamp in probe responses. */ 3673 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 3674 flags |= IWN_TX_INSERT_TSTAMP; 3675 3676 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 3677 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 3678 tx->timeout = htole16(3); 3679 else 3680 tx->timeout = htole16(2); 3681 } else 3682 tx->timeout = htole16(0); 3683 3684 if (hdrlen & 3) { 3685 /* First segment length must be a multiple of 4. */ 3686 flags |= IWN_TX_NEED_PADDING; 3687 pad = 4 - (hdrlen & 3); 3688 } else 3689 pad = 0; 3690 3691 if (ieee80211_radiotap_active_vap(vap)) { 3692 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 3693 3694 tap->wt_flags = 0; 3695 tap->wt_rate = rate; 3696 3697 ieee80211_radiotap_tx(vap, m); 3698 } 3699 3700 tx->len = htole16(totlen); 3701 tx->tid = 0; 3702 tx->id = sc->broadcast_id; 3703 tx->rts_ntries = params->ibp_try1; 3704 tx->data_ntries = params->ibp_try0; 3705 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3706 tx->rate = htole32(rate2plcp(rate)); 3707 if (ridx < IWN_RIDX_OFDM6 && 3708 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 3709 tx->rate |= htole32(IWN_RFLAG_CCK); 3710 /* Group or management frame. */ 3711 tx->linkq = 0; 3712 txant = IWN_LSB(sc->txchainmask); 3713 tx->rate |= htole32(IWN_RFLAG_ANT(txant)); 3714 /* Set physical address of "scratch area". */ 3715 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 3716 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 3717 3718 /* Copy 802.11 header in TX command. */ 3719 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 3720 3721 /* Trim 802.11 header. */ 3722 m_adj(m, hdrlen); 3723 tx->security = 0; 3724 tx->flags = htole32(flags); 3725 3726 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 3727 &nsegs, BUS_DMA_NOWAIT); 3728 if (error != 0) { 3729 if (error != EFBIG) { 3730 device_printf(sc->sc_dev, 3731 "%s: can't map mbuf (error %d)\n", __func__, error); 3732 m_freem(m); 3733 return error; 3734 } 3735 /* Too many DMA segments, linearize mbuf. */ 3736 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER); 3737 if (m1 == NULL) { 3738 device_printf(sc->sc_dev, 3739 "%s: could not defrag mbuf\n", __func__); 3740 m_freem(m); 3741 return ENOBUFS; 3742 } 3743 m = m1; 3744 3745 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 3746 segs, &nsegs, BUS_DMA_NOWAIT); 3747 if (error != 0) { 3748 device_printf(sc->sc_dev, 3749 "%s: can't map mbuf (error %d)\n", __func__, error); 3750 m_freem(m); 3751 return error; 3752 } 3753 } 3754 3755 data->m = m; 3756 data->ni = ni; 3757 3758 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 3759 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs); 3760 3761 /* Fill TX descriptor. */ 3762 desc->nsegs = 1; 3763 if (m->m_len != 0) 3764 desc->nsegs += nsegs; 3765 /* First DMA segment is used by the TX command. */ 3766 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 3767 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 3768 (4 + sizeof (*tx) + hdrlen + pad) << 4); 3769 /* Other DMA segments are for data payload. */ 3770 seg = &segs[0]; 3771 for (i = 1; i <= nsegs; i++) { 3772 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 3773 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 3774 seg->ds_len << 4); 3775 seg++; 3776 } 3777 3778 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 3779 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3780 BUS_DMASYNC_PREWRITE); 3781 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3782 BUS_DMASYNC_PREWRITE); 3783 3784 /* Update TX scheduler. */ 3785 if (ring->qid >= sc->firstaggqueue) 3786 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 3787 3788 /* Kick TX ring. */ 3789 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3790 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3791 3792 /* Mark TX ring as full if we reach a certain threshold. */ 3793 if (++ring->queued > IWN_TX_RING_HIMARK) 3794 sc->qfullmsk |= 1 << ring->qid; 3795 3796 return 0; 3797 } 3798 3799 static int 3800 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3801 const struct ieee80211_bpf_params *params) 3802 { 3803 struct ieee80211com *ic = ni->ni_ic; 3804 struct ifnet *ifp = ic->ic_ifp; 3805 struct iwn_softc *sc = ifp->if_softc; 3806 int error = 0; 3807 3808 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 3809 ieee80211_free_node(ni); 3810 m_freem(m); 3811 return ENETDOWN; 3812 } 3813 3814 IWN_LOCK(sc); 3815 if (params == NULL) { 3816 /* 3817 * Legacy path; interpret frame contents to decide 3818 * precisely how to send the frame. 3819 */ 3820 error = iwn_tx_data(sc, m, ni); 3821 } else { 3822 /* 3823 * Caller supplied explicit parameters to use in 3824 * sending the frame. 3825 */ 3826 error = iwn_tx_data_raw(sc, m, ni, params); 3827 } 3828 if (error != 0) { 3829 /* NB: m is reclaimed on tx failure */ 3830 ieee80211_free_node(ni); 3831 ifp->if_oerrors++; 3832 } 3833 sc->sc_tx_timer = 5; 3834 3835 IWN_UNLOCK(sc); 3836 return error; 3837 } 3838 3839 static void 3840 iwn_start(struct ifnet *ifp) 3841 { 3842 struct iwn_softc *sc = ifp->if_softc; 3843 3844 IWN_LOCK(sc); 3845 iwn_start_locked(ifp); 3846 IWN_UNLOCK(sc); 3847 } 3848 3849 static void 3850 iwn_start_locked(struct ifnet *ifp) 3851 { 3852 struct iwn_softc *sc = ifp->if_softc; 3853 struct ieee80211_node *ni; 3854 struct mbuf *m; 3855 3856 IWN_LOCK_ASSERT(sc); 3857 3858 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || 3859 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) 3860 return; 3861 3862 for (;;) { 3863 if (sc->qfullmsk != 0) { 3864 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 3865 break; 3866 } 3867 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 3868 if (m == NULL) 3869 break; 3870 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3871 if (iwn_tx_data(sc, m, ni) != 0) { 3872 ieee80211_free_node(ni); 3873 ifp->if_oerrors++; 3874 continue; 3875 } 3876 sc->sc_tx_timer = 5; 3877 } 3878 } 3879 3880 static void 3881 iwn_watchdog(void *arg) 3882 { 3883 struct iwn_softc *sc = arg; 3884 struct ifnet *ifp = sc->sc_ifp; 3885 struct ieee80211com *ic = ifp->if_l2com; 3886 3887 IWN_LOCK_ASSERT(sc); 3888 3889 KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running")); 3890 3891 if (sc->sc_tx_timer > 0) { 3892 if (--sc->sc_tx_timer == 0) { 3893 if_printf(ifp, "device timeout\n"); 3894 ieee80211_runtask(ic, &sc->sc_reinit_task); 3895 return; 3896 } 3897 } 3898 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc); 3899 } 3900 3901 static int 3902 iwn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 3903 { 3904 struct iwn_softc *sc = ifp->if_softc; 3905 struct ieee80211com *ic = ifp->if_l2com; 3906 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3907 struct ifreq *ifr = (struct ifreq *) data; 3908 int error = 0, startall = 0, stop = 0; 3909 3910 switch (cmd) { 3911 case SIOCGIFADDR: 3912 error = ether_ioctl(ifp, cmd, data); 3913 break; 3914 case SIOCSIFFLAGS: 3915 IWN_LOCK(sc); 3916 if (ifp->if_flags & IFF_UP) { 3917 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 3918 iwn_init_locked(sc); 3919 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL) 3920 startall = 1; 3921 else 3922 stop = 1; 3923 } 3924 } else { 3925 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3926 iwn_stop_locked(sc); 3927 } 3928 IWN_UNLOCK(sc); 3929 if (startall) 3930 ieee80211_start_all(ic); 3931 else if (vap != NULL && stop) 3932 ieee80211_stop(vap); 3933 break; 3934 case SIOCGIFMEDIA: 3935 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 3936 break; 3937 default: 3938 error = EINVAL; 3939 break; 3940 } 3941 return error; 3942 } 3943 3944 /* 3945 * Send a command to the firmware. 3946 */ 3947 static int 3948 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 3949 { 3950 struct iwn_tx_ring *ring = &sc->txq[4]; 3951 struct iwn_tx_desc *desc; 3952 struct iwn_tx_data *data; 3953 struct iwn_tx_cmd *cmd; 3954 struct mbuf *m; 3955 bus_addr_t paddr; 3956 int totlen, error; 3957 3958 if (async == 0) 3959 IWN_LOCK_ASSERT(sc); 3960 3961 desc = &ring->desc[ring->cur]; 3962 data = &ring->data[ring->cur]; 3963 totlen = 4 + size; 3964 3965 if (size > sizeof cmd->data) { 3966 /* Command is too large to fit in a descriptor. */ 3967 if (totlen > MCLBYTES) 3968 return EINVAL; 3969 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 3970 if (m == NULL) 3971 return ENOMEM; 3972 cmd = mtod(m, struct iwn_tx_cmd *); 3973 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, 3974 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 3975 if (error != 0) { 3976 m_freem(m); 3977 return error; 3978 } 3979 data->m = m; 3980 } else { 3981 cmd = &ring->cmd[ring->cur]; 3982 paddr = data->cmd_paddr; 3983 } 3984 3985 cmd->code = code; 3986 cmd->flags = 0; 3987 cmd->qid = ring->qid; 3988 cmd->idx = ring->cur; 3989 memcpy(cmd->data, buf, size); 3990 3991 desc->nsegs = 1; 3992 desc->segs[0].addr = htole32(IWN_LOADDR(paddr)); 3993 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4); 3994 3995 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n", 3996 __func__, iwn_intr_str(cmd->code), cmd->code, 3997 cmd->flags, cmd->qid, cmd->idx); 3998 3999 if (size > sizeof cmd->data) { 4000 bus_dmamap_sync(ring->data_dmat, data->map, 4001 BUS_DMASYNC_PREWRITE); 4002 } else { 4003 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 4004 BUS_DMASYNC_PREWRITE); 4005 } 4006 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 4007 BUS_DMASYNC_PREWRITE); 4008 4009 /* Kick command ring. */ 4010 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 4011 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 4012 4013 return async ? 0 : msleep(desc, &sc->sc_mtx, PCATCH, "iwncmd", hz); 4014 } 4015 4016 static int 4017 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 4018 { 4019 struct iwn4965_node_info hnode; 4020 caddr_t src, dst; 4021 4022 /* 4023 * We use the node structure for 5000 Series internally (it is 4024 * a superset of the one for 4965AGN). We thus copy the common 4025 * fields before sending the command. 4026 */ 4027 src = (caddr_t)node; 4028 dst = (caddr_t)&hnode; 4029 memcpy(dst, src, 48); 4030 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */ 4031 memcpy(dst + 48, src + 72, 20); 4032 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async); 4033 } 4034 4035 static int 4036 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 4037 { 4038 /* Direct mapping. */ 4039 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async); 4040 } 4041 4042 static int 4043 iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni) 4044 { 4045 #define RV(v) ((v) & IEEE80211_RATE_VAL) 4046 struct iwn_node *wn = (void *)ni; 4047 struct ieee80211_rateset *rs = &ni->ni_rates; 4048 struct iwn_cmd_link_quality linkq; 4049 uint8_t txant; 4050 int i, rate, txrate; 4051 4052 /* Use the first valid TX antenna. */ 4053 txant = IWN_LSB(sc->txchainmask); 4054 4055 memset(&linkq, 0, sizeof linkq); 4056 linkq.id = wn->id; 4057 linkq.antmsk_1stream = txant; 4058 linkq.antmsk_2stream = IWN_ANT_AB; 4059 linkq.ampdu_max = 64; 4060 linkq.ampdu_threshold = 3; 4061 linkq.ampdu_limit = htole16(4000); /* 4ms */ 4062 4063 /* Start at highest available bit-rate. */ 4064 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) 4065 txrate = ni->ni_htrates.rs_nrates - 1; 4066 else 4067 txrate = rs->rs_nrates - 1; 4068 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) { 4069 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) 4070 rate = IEEE80211_RATE_MCS | txrate; 4071 else 4072 rate = RV(rs->rs_rates[txrate]); 4073 linkq.retry[i] = wn->ridx[rate]; 4074 4075 if ((le32toh(wn->ridx[rate]) & IWN_RFLAG_MCS) && 4076 RV(le32toh(wn->ridx[rate])) > 7) 4077 linkq.mimo = i + 1; 4078 4079 /* Next retry at immediate lower bit-rate. */ 4080 if (txrate > 0) 4081 txrate--; 4082 } 4083 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1); 4084 #undef RV 4085 } 4086 4087 /* 4088 * Broadcast node is used to send group-addressed and management frames. 4089 */ 4090 static int 4091 iwn_add_broadcast_node(struct iwn_softc *sc, int async) 4092 { 4093 struct iwn_ops *ops = &sc->ops; 4094 struct ifnet *ifp = sc->sc_ifp; 4095 struct ieee80211com *ic = ifp->if_l2com; 4096 struct iwn_node_info node; 4097 struct iwn_cmd_link_quality linkq; 4098 uint8_t txant; 4099 int i, error; 4100 4101 memset(&node, 0, sizeof node); 4102 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr); 4103 node.id = sc->broadcast_id; 4104 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__); 4105 if ((error = ops->add_node(sc, &node, async)) != 0) 4106 return error; 4107 4108 /* Use the first valid TX antenna. */ 4109 txant = IWN_LSB(sc->txchainmask); 4110 4111 memset(&linkq, 0, sizeof linkq); 4112 linkq.id = sc->broadcast_id; 4113 linkq.antmsk_1stream = txant; 4114 linkq.antmsk_2stream = IWN_ANT_AB; 4115 linkq.ampdu_max = 64; 4116 linkq.ampdu_threshold = 3; 4117 linkq.ampdu_limit = htole16(4000); /* 4ms */ 4118 4119 /* Use lowest mandatory bit-rate. */ 4120 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 4121 linkq.retry[0] = htole32(0xd); 4122 else 4123 linkq.retry[0] = htole32(10 | IWN_RFLAG_CCK); 4124 linkq.retry[0] |= htole32(IWN_RFLAG_ANT(txant)); 4125 /* Use same bit-rate for all TX retries. */ 4126 for (i = 1; i < IWN_MAX_TX_RETRIES; i++) { 4127 linkq.retry[i] = linkq.retry[0]; 4128 } 4129 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async); 4130 } 4131 4132 static int 4133 iwn_updateedca(struct ieee80211com *ic) 4134 { 4135 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ 4136 struct iwn_softc *sc = ic->ic_ifp->if_softc; 4137 struct iwn_edca_params cmd; 4138 int aci; 4139 4140 memset(&cmd, 0, sizeof cmd); 4141 cmd.flags = htole32(IWN_EDCA_UPDATE); 4142 for (aci = 0; aci < WME_NUM_AC; aci++) { 4143 const struct wmeParams *ac = 4144 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci]; 4145 cmd.ac[aci].aifsn = ac->wmep_aifsn; 4146 cmd.ac[aci].cwmin = htole16(IWN_EXP2(ac->wmep_logcwmin)); 4147 cmd.ac[aci].cwmax = htole16(IWN_EXP2(ac->wmep_logcwmax)); 4148 cmd.ac[aci].txoplimit = 4149 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit)); 4150 } 4151 IEEE80211_UNLOCK(ic); 4152 IWN_LOCK(sc); 4153 (void)iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1); 4154 IWN_UNLOCK(sc); 4155 IEEE80211_LOCK(ic); 4156 return 0; 4157 #undef IWN_EXP2 4158 } 4159 4160 static void 4161 iwn_update_mcast(struct ifnet *ifp) 4162 { 4163 /* Ignore */ 4164 } 4165 4166 static void 4167 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on) 4168 { 4169 struct iwn_cmd_led led; 4170 4171 /* Clear microcode LED ownership. */ 4172 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL); 4173 4174 led.which = which; 4175 led.unit = htole32(10000); /* on/off in unit of 100ms */ 4176 led.off = off; 4177 led.on = on; 4178 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1); 4179 } 4180 4181 /* 4182 * Set the critical temperature at which the firmware will stop the radio 4183 * and notify us. 4184 */ 4185 static int 4186 iwn_set_critical_temp(struct iwn_softc *sc) 4187 { 4188 struct iwn_critical_temp crit; 4189 int32_t temp; 4190 4191 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF); 4192 4193 if (sc->hw_type == IWN_HW_REV_TYPE_5150) 4194 temp = (IWN_CTOK(110) - sc->temp_off) * -5; 4195 else if (sc->hw_type == IWN_HW_REV_TYPE_4965) 4196 temp = IWN_CTOK(110); 4197 else 4198 temp = 110; 4199 memset(&crit, 0, sizeof crit); 4200 crit.tempR = htole32(temp); 4201 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n", temp); 4202 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0); 4203 } 4204 4205 static int 4206 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni) 4207 { 4208 struct iwn_cmd_timing cmd; 4209 uint64_t val, mod; 4210 4211 memset(&cmd, 0, sizeof cmd); 4212 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 4213 cmd.bintval = htole16(ni->ni_intval); 4214 cmd.lintval = htole16(10); 4215 4216 /* Compute remaining time until next beacon. */ 4217 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU; 4218 mod = le64toh(cmd.tstamp) % val; 4219 cmd.binitval = htole32((uint32_t)(val - mod)); 4220 4221 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n", 4222 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod)); 4223 4224 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1); 4225 } 4226 4227 static void 4228 iwn4965_power_calibration(struct iwn_softc *sc, int temp) 4229 { 4230 struct ifnet *ifp = sc->sc_ifp; 4231 struct ieee80211com *ic = ifp->if_l2com; 4232 4233 /* Adjust TX power if need be (delta >= 3 degC). */ 4234 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n", 4235 __func__, sc->temp, temp); 4236 if (abs(temp - sc->temp) >= 3) { 4237 /* Record temperature of last calibration. */ 4238 sc->temp = temp; 4239 (void)iwn4965_set_txpower(sc, ic->ic_bsschan, 1); 4240 } 4241 } 4242 4243 /* 4244 * Set TX power for current channel (each rate has its own power settings). 4245 * This function takes into account the regulatory information from EEPROM, 4246 * the current temperature and the current voltage. 4247 */ 4248 static int 4249 iwn4965_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch, 4250 int async) 4251 { 4252 /* Fixed-point arithmetic division using a n-bit fractional part. */ 4253 #define fdivround(a, b, n) \ 4254 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 4255 /* Linear interpolation. */ 4256 #define interpolate(x, x1, y1, x2, y2, n) \ 4257 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 4258 4259 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 }; 4260 struct iwn_ucode_info *uc = &sc->ucode_info; 4261 struct iwn4965_cmd_txpower cmd; 4262 struct iwn4965_eeprom_chan_samples *chans; 4263 const uint8_t *rf_gain, *dsp_gain; 4264 int32_t vdiff, tdiff; 4265 int i, c, grp, maxpwr; 4266 uint8_t chan; 4267 4268 /* Retrieve current channel from last RXON. */ 4269 chan = sc->rxon.chan; 4270 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n", 4271 chan); 4272 4273 memset(&cmd, 0, sizeof cmd); 4274 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1; 4275 cmd.chan = chan; 4276 4277 if (IEEE80211_IS_CHAN_5GHZ(ch)) { 4278 maxpwr = sc->maxpwr5GHz; 4279 rf_gain = iwn4965_rf_gain_5ghz; 4280 dsp_gain = iwn4965_dsp_gain_5ghz; 4281 } else { 4282 maxpwr = sc->maxpwr2GHz; 4283 rf_gain = iwn4965_rf_gain_2ghz; 4284 dsp_gain = iwn4965_dsp_gain_2ghz; 4285 } 4286 4287 /* Compute voltage compensation. */ 4288 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7; 4289 if (vdiff > 0) 4290 vdiff *= 2; 4291 if (abs(vdiff) > 2) 4292 vdiff = 0; 4293 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4294 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n", 4295 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage); 4296 4297 /* Get channel attenuation group. */ 4298 if (chan <= 20) /* 1-20 */ 4299 grp = 4; 4300 else if (chan <= 43) /* 34-43 */ 4301 grp = 0; 4302 else if (chan <= 70) /* 44-70 */ 4303 grp = 1; 4304 else if (chan <= 124) /* 71-124 */ 4305 grp = 2; 4306 else /* 125-200 */ 4307 grp = 3; 4308 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4309 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp); 4310 4311 /* Get channel sub-band. */ 4312 for (i = 0; i < IWN_NBANDS; i++) 4313 if (sc->bands[i].lo != 0 && 4314 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi) 4315 break; 4316 if (i == IWN_NBANDS) /* Can't happen in real-life. */ 4317 return EINVAL; 4318 chans = sc->bands[i].chans; 4319 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4320 "%s: chan %d sub-band=%d\n", __func__, chan, i); 4321 4322 for (c = 0; c < 2; c++) { 4323 uint8_t power, gain, temp; 4324 int maxchpwr, pwr, ridx, idx; 4325 4326 power = interpolate(chan, 4327 chans[0].num, chans[0].samples[c][1].power, 4328 chans[1].num, chans[1].samples[c][1].power, 1); 4329 gain = interpolate(chan, 4330 chans[0].num, chans[0].samples[c][1].gain, 4331 chans[1].num, chans[1].samples[c][1].gain, 1); 4332 temp = interpolate(chan, 4333 chans[0].num, chans[0].samples[c][1].temp, 4334 chans[1].num, chans[1].samples[c][1].temp, 1); 4335 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4336 "%s: Tx chain %d: power=%d gain=%d temp=%d\n", 4337 __func__, c, power, gain, temp); 4338 4339 /* Compute temperature compensation. */ 4340 tdiff = ((sc->temp - temp) * 2) / tdiv[grp]; 4341 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4342 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n", 4343 __func__, tdiff, sc->temp, temp); 4344 4345 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) { 4346 /* Convert dBm to half-dBm. */ 4347 maxchpwr = sc->maxpwr[chan] * 2; 4348 if ((ridx / 8) & 1) 4349 maxchpwr -= 6; /* MIMO 2T: -3dB */ 4350 4351 pwr = maxpwr; 4352 4353 /* Adjust TX power based on rate. */ 4354 if ((ridx % 8) == 5) 4355 pwr -= 15; /* OFDM48: -7.5dB */ 4356 else if ((ridx % 8) == 6) 4357 pwr -= 17; /* OFDM54: -8.5dB */ 4358 else if ((ridx % 8) == 7) 4359 pwr -= 20; /* OFDM60: -10dB */ 4360 else 4361 pwr -= 10; /* Others: -5dB */ 4362 4363 /* Do not exceed channel max TX power. */ 4364 if (pwr > maxchpwr) 4365 pwr = maxchpwr; 4366 4367 idx = gain - (pwr - power) - tdiff - vdiff; 4368 if ((ridx / 8) & 1) /* MIMO */ 4369 idx += (int32_t)le32toh(uc->atten[grp][c]); 4370 4371 if (cmd.band == 0) 4372 idx += 9; /* 5GHz */ 4373 if (ridx == IWN_RIDX_MAX) 4374 idx += 5; /* CCK */ 4375 4376 /* Make sure idx stays in a valid range. */ 4377 if (idx < 0) 4378 idx = 0; 4379 else if (idx > IWN4965_MAX_PWR_INDEX) 4380 idx = IWN4965_MAX_PWR_INDEX; 4381 4382 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4383 "%s: Tx chain %d, rate idx %d: power=%d\n", 4384 __func__, c, ridx, idx); 4385 cmd.power[ridx].rf_gain[c] = rf_gain[idx]; 4386 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx]; 4387 } 4388 } 4389 4390 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4391 "%s: set tx power for chan %d\n", __func__, chan); 4392 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async); 4393 4394 #undef interpolate 4395 #undef fdivround 4396 } 4397 4398 static int 4399 iwn5000_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch, 4400 int async) 4401 { 4402 struct iwn5000_cmd_txpower cmd; 4403 4404 /* 4405 * TX power calibration is handled automatically by the firmware 4406 * for 5000 Series. 4407 */ 4408 memset(&cmd, 0, sizeof cmd); 4409 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */ 4410 cmd.flags = IWN5000_TXPOWER_NO_CLOSED; 4411 cmd.srv_limit = IWN5000_TXPOWER_AUTO; 4412 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: setting TX power\n", __func__); 4413 return iwn_cmd(sc, IWN_CMD_TXPOWER_DBM, &cmd, sizeof cmd, async); 4414 } 4415 4416 /* 4417 * Retrieve the maximum RSSI (in dBm) among receivers. 4418 */ 4419 static int 4420 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 4421 { 4422 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf; 4423 uint8_t mask, agc; 4424 int rssi; 4425 4426 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC; 4427 agc = (le16toh(phy->agc) >> 7) & 0x7f; 4428 4429 rssi = 0; 4430 if (mask & IWN_ANT_A) 4431 rssi = MAX(rssi, phy->rssi[0]); 4432 if (mask & IWN_ANT_B) 4433 rssi = MAX(rssi, phy->rssi[2]); 4434 if (mask & IWN_ANT_C) 4435 rssi = MAX(rssi, phy->rssi[4]); 4436 4437 DPRINTF(sc, IWN_DEBUG_RECV, 4438 "%s: agc %d mask 0x%x rssi %d %d %d result %d\n", __func__, agc, 4439 mask, phy->rssi[0], phy->rssi[2], phy->rssi[4], 4440 rssi - agc - IWN_RSSI_TO_DBM); 4441 return rssi - agc - IWN_RSSI_TO_DBM; 4442 } 4443 4444 static int 4445 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 4446 { 4447 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf; 4448 uint8_t agc; 4449 int rssi; 4450 4451 agc = (le32toh(phy->agc) >> 9) & 0x7f; 4452 4453 rssi = MAX(le16toh(phy->rssi[0]) & 0xff, 4454 le16toh(phy->rssi[1]) & 0xff); 4455 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi); 4456 4457 DPRINTF(sc, IWN_DEBUG_RECV, 4458 "%s: agc %d rssi %d %d %d result %d\n", __func__, agc, 4459 phy->rssi[0], phy->rssi[1], phy->rssi[2], 4460 rssi - agc - IWN_RSSI_TO_DBM); 4461 return rssi - agc - IWN_RSSI_TO_DBM; 4462 } 4463 4464 /* 4465 * Retrieve the average noise (in dBm) among receivers. 4466 */ 4467 static int 4468 iwn_get_noise(const struct iwn_rx_general_stats *stats) 4469 { 4470 int i, total, nbant, noise; 4471 4472 total = nbant = 0; 4473 for (i = 0; i < 3; i++) { 4474 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0) 4475 continue; 4476 total += noise; 4477 nbant++; 4478 } 4479 /* There should be at least one antenna but check anyway. */ 4480 return (nbant == 0) ? -127 : (total / nbant) - 107; 4481 } 4482 4483 /* 4484 * Compute temperature (in degC) from last received statistics. 4485 */ 4486 static int 4487 iwn4965_get_temperature(struct iwn_softc *sc) 4488 { 4489 struct iwn_ucode_info *uc = &sc->ucode_info; 4490 int32_t r1, r2, r3, r4, temp; 4491 4492 r1 = le32toh(uc->temp[0].chan20MHz); 4493 r2 = le32toh(uc->temp[1].chan20MHz); 4494 r3 = le32toh(uc->temp[2].chan20MHz); 4495 r4 = le32toh(sc->rawtemp); 4496 4497 if (r1 == r3) /* Prevents division by 0 (should not happen). */ 4498 return 0; 4499 4500 /* Sign-extend 23-bit R4 value to 32-bit. */ 4501 r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000; 4502 /* Compute temperature in Kelvin. */ 4503 temp = (259 * (r4 - r2)) / (r3 - r1); 4504 temp = (temp * 97) / 100 + 8; 4505 4506 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp, 4507 IWN_KTOC(temp)); 4508 return IWN_KTOC(temp); 4509 } 4510 4511 static int 4512 iwn5000_get_temperature(struct iwn_softc *sc) 4513 { 4514 int32_t temp; 4515 4516 /* 4517 * Temperature is not used by the driver for 5000 Series because 4518 * TX power calibration is handled by firmware. 4519 */ 4520 temp = le32toh(sc->rawtemp); 4521 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 4522 temp = (temp / -5) + sc->temp_off; 4523 temp = IWN_KTOC(temp); 4524 } 4525 return temp; 4526 } 4527 4528 /* 4529 * Initialize sensitivity calibration state machine. 4530 */ 4531 static int 4532 iwn_init_sensitivity(struct iwn_softc *sc) 4533 { 4534 struct iwn_ops *ops = &sc->ops; 4535 struct iwn_calib_state *calib = &sc->calib; 4536 uint32_t flags; 4537 int error; 4538 4539 /* Reset calibration state machine. */ 4540 memset(calib, 0, sizeof (*calib)); 4541 calib->state = IWN_CALIB_STATE_INIT; 4542 calib->cck_state = IWN_CCK_STATE_HIFA; 4543 /* Set initial correlation values. */ 4544 calib->ofdm_x1 = sc->limits->min_ofdm_x1; 4545 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1; 4546 calib->ofdm_x4 = sc->limits->min_ofdm_x4; 4547 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4; 4548 calib->cck_x4 = 125; 4549 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4; 4550 calib->energy_cck = sc->limits->energy_cck; 4551 4552 /* Write initial sensitivity. */ 4553 if ((error = iwn_send_sensitivity(sc)) != 0) 4554 return error; 4555 4556 /* Write initial gains. */ 4557 if ((error = ops->init_gains(sc)) != 0) 4558 return error; 4559 4560 /* Request statistics at each beacon interval. */ 4561 flags = 0; 4562 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending request for statistics\n", 4563 __func__); 4564 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1); 4565 } 4566 4567 /* 4568 * Collect noise and RSSI statistics for the first 20 beacons received 4569 * after association and use them to determine connected antennas and 4570 * to set differential gains. 4571 */ 4572 static void 4573 iwn_collect_noise(struct iwn_softc *sc, 4574 const struct iwn_rx_general_stats *stats) 4575 { 4576 struct iwn_ops *ops = &sc->ops; 4577 struct iwn_calib_state *calib = &sc->calib; 4578 uint32_t val; 4579 int i; 4580 4581 /* Accumulate RSSI and noise for all 3 antennas. */ 4582 for (i = 0; i < 3; i++) { 4583 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff; 4584 calib->noise[i] += le32toh(stats->noise[i]) & 0xff; 4585 } 4586 /* NB: We update differential gains only once after 20 beacons. */ 4587 if (++calib->nbeacons < 20) 4588 return; 4589 4590 /* Determine highest average RSSI. */ 4591 val = MAX(calib->rssi[0], calib->rssi[1]); 4592 val = MAX(calib->rssi[2], val); 4593 4594 /* Determine which antennas are connected. */ 4595 sc->chainmask = sc->rxchainmask; 4596 for (i = 0; i < 3; i++) 4597 if (val - calib->rssi[i] > 15 * 20) 4598 sc->chainmask &= ~(1 << i); 4599 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4600 "%s: RX chains mask: theoretical=0x%x, actual=0x%x\n", 4601 __func__, sc->rxchainmask, sc->chainmask); 4602 4603 /* If none of the TX antennas are connected, keep at least one. */ 4604 if ((sc->chainmask & sc->txchainmask) == 0) 4605 sc->chainmask |= IWN_LSB(sc->txchainmask); 4606 4607 (void)ops->set_gains(sc); 4608 calib->state = IWN_CALIB_STATE_RUN; 4609 4610 #ifdef notyet 4611 /* XXX Disable RX chains with no antennas connected. */ 4612 sc->rxon.rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask)); 4613 (void)iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 4614 #endif 4615 4616 #if 0 4617 /* XXX: not yet */ 4618 /* Enable power-saving mode if requested by user. */ 4619 if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON) 4620 (void)iwn_set_pslevel(sc, 0, 3, 1); 4621 #endif 4622 } 4623 4624 static int 4625 iwn4965_init_gains(struct iwn_softc *sc) 4626 { 4627 struct iwn_phy_calib_gain cmd; 4628 4629 memset(&cmd, 0, sizeof cmd); 4630 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4631 /* Differential gains initially set to 0 for all 3 antennas. */ 4632 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4633 "%s: setting initial differential gains\n", __func__); 4634 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4635 } 4636 4637 static int 4638 iwn5000_init_gains(struct iwn_softc *sc) 4639 { 4640 struct iwn_phy_calib cmd; 4641 4642 memset(&cmd, 0, sizeof cmd); 4643 cmd.code = sc->reset_noise_gain; 4644 cmd.ngroups = 1; 4645 cmd.isvalid = 1; 4646 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4647 "%s: setting initial differential gains\n", __func__); 4648 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4649 } 4650 4651 static int 4652 iwn4965_set_gains(struct iwn_softc *sc) 4653 { 4654 struct iwn_calib_state *calib = &sc->calib; 4655 struct iwn_phy_calib_gain cmd; 4656 int i, delta, noise; 4657 4658 /* Get minimal noise among connected antennas. */ 4659 noise = INT_MAX; /* NB: There's at least one antenna. */ 4660 for (i = 0; i < 3; i++) 4661 if (sc->chainmask & (1 << i)) 4662 noise = MIN(calib->noise[i], noise); 4663 4664 memset(&cmd, 0, sizeof cmd); 4665 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4666 /* Set differential gains for connected antennas. */ 4667 for (i = 0; i < 3; i++) { 4668 if (sc->chainmask & (1 << i)) { 4669 /* Compute attenuation (in unit of 1.5dB). */ 4670 delta = (noise - (int32_t)calib->noise[i]) / 30; 4671 /* NB: delta <= 0 */ 4672 /* Limit to [-4.5dB,0]. */ 4673 cmd.gain[i] = MIN(abs(delta), 3); 4674 if (delta < 0) 4675 cmd.gain[i] |= 1 << 2; /* sign bit */ 4676 } 4677 } 4678 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4679 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n", 4680 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask); 4681 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4682 } 4683 4684 static int 4685 iwn5000_set_gains(struct iwn_softc *sc) 4686 { 4687 struct iwn_calib_state *calib = &sc->calib; 4688 struct iwn_phy_calib_gain cmd; 4689 int i, ant, div, delta; 4690 4691 /* We collected 20 beacons and !=6050 need a 1.5 factor. */ 4692 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30; 4693 4694 memset(&cmd, 0, sizeof cmd); 4695 cmd.code = sc->noise_gain; 4696 cmd.ngroups = 1; 4697 cmd.isvalid = 1; 4698 /* Get first available RX antenna as referential. */ 4699 ant = IWN_LSB(sc->rxchainmask); 4700 /* Set differential gains for other antennas. */ 4701 for (i = ant + 1; i < 3; i++) { 4702 if (sc->chainmask & (1 << i)) { 4703 /* The delta is relative to antenna "ant". */ 4704 delta = ((int32_t)calib->noise[ant] - 4705 (int32_t)calib->noise[i]) / div; 4706 /* Limit to [-4.5dB,+4.5dB]. */ 4707 cmd.gain[i - 1] = MIN(abs(delta), 3); 4708 if (delta < 0) 4709 cmd.gain[i - 1] |= 1 << 2; /* sign bit */ 4710 } 4711 } 4712 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4713 "setting differential gains Ant B/C: %x/%x (%x)\n", 4714 cmd.gain[0], cmd.gain[1], sc->chainmask); 4715 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4716 } 4717 4718 /* 4719 * Tune RF RX sensitivity based on the number of false alarms detected 4720 * during the last beacon period. 4721 */ 4722 static void 4723 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats) 4724 { 4725 #define inc(val, inc, max) \ 4726 if ((val) < (max)) { \ 4727 if ((val) < (max) - (inc)) \ 4728 (val) += (inc); \ 4729 else \ 4730 (val) = (max); \ 4731 needs_update = 1; \ 4732 } 4733 #define dec(val, dec, min) \ 4734 if ((val) > (min)) { \ 4735 if ((val) > (min) + (dec)) \ 4736 (val) -= (dec); \ 4737 else \ 4738 (val) = (min); \ 4739 needs_update = 1; \ 4740 } 4741 4742 const struct iwn_sensitivity_limits *limits = sc->limits; 4743 struct iwn_calib_state *calib = &sc->calib; 4744 uint32_t val, rxena, fa; 4745 uint32_t energy[3], energy_min; 4746 uint8_t noise[3], noise_ref; 4747 int i, needs_update = 0; 4748 4749 /* Check that we've been enabled long enough. */ 4750 if ((rxena = le32toh(stats->general.load)) == 0) 4751 return; 4752 4753 /* Compute number of false alarms since last call for OFDM. */ 4754 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm; 4755 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm; 4756 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 4757 4758 /* Save counters values for next call. */ 4759 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp); 4760 calib->fa_ofdm = le32toh(stats->ofdm.fa); 4761 4762 if (fa > 50 * rxena) { 4763 /* High false alarm count, decrease sensitivity. */ 4764 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4765 "%s: OFDM high false alarm count: %u\n", __func__, fa); 4766 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1); 4767 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1); 4768 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4); 4769 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4); 4770 4771 } else if (fa < 5 * rxena) { 4772 /* Low false alarm count, increase sensitivity. */ 4773 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4774 "%s: OFDM low false alarm count: %u\n", __func__, fa); 4775 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1); 4776 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1); 4777 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4); 4778 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4); 4779 } 4780 4781 /* Compute maximum noise among 3 receivers. */ 4782 for (i = 0; i < 3; i++) 4783 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff; 4784 val = MAX(noise[0], noise[1]); 4785 val = MAX(noise[2], val); 4786 /* Insert it into our samples table. */ 4787 calib->noise_samples[calib->cur_noise_sample] = val; 4788 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20; 4789 4790 /* Compute maximum noise among last 20 samples. */ 4791 noise_ref = calib->noise_samples[0]; 4792 for (i = 1; i < 20; i++) 4793 noise_ref = MAX(noise_ref, calib->noise_samples[i]); 4794 4795 /* Compute maximum energy among 3 receivers. */ 4796 for (i = 0; i < 3; i++) 4797 energy[i] = le32toh(stats->general.energy[i]); 4798 val = MIN(energy[0], energy[1]); 4799 val = MIN(energy[2], val); 4800 /* Insert it into our samples table. */ 4801 calib->energy_samples[calib->cur_energy_sample] = val; 4802 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10; 4803 4804 /* Compute minimum energy among last 10 samples. */ 4805 energy_min = calib->energy_samples[0]; 4806 for (i = 1; i < 10; i++) 4807 energy_min = MAX(energy_min, calib->energy_samples[i]); 4808 energy_min += 6; 4809 4810 /* Compute number of false alarms since last call for CCK. */ 4811 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck; 4812 fa += le32toh(stats->cck.fa) - calib->fa_cck; 4813 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 4814 4815 /* Save counters values for next call. */ 4816 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp); 4817 calib->fa_cck = le32toh(stats->cck.fa); 4818 4819 if (fa > 50 * rxena) { 4820 /* High false alarm count, decrease sensitivity. */ 4821 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4822 "%s: CCK high false alarm count: %u\n", __func__, fa); 4823 calib->cck_state = IWN_CCK_STATE_HIFA; 4824 calib->low_fa = 0; 4825 4826 if (calib->cck_x4 > 160) { 4827 calib->noise_ref = noise_ref; 4828 if (calib->energy_cck > 2) 4829 dec(calib->energy_cck, 2, energy_min); 4830 } 4831 if (calib->cck_x4 < 160) { 4832 calib->cck_x4 = 161; 4833 needs_update = 1; 4834 } else 4835 inc(calib->cck_x4, 3, limits->max_cck_x4); 4836 4837 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4); 4838 4839 } else if (fa < 5 * rxena) { 4840 /* Low false alarm count, increase sensitivity. */ 4841 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4842 "%s: CCK low false alarm count: %u\n", __func__, fa); 4843 calib->cck_state = IWN_CCK_STATE_LOFA; 4844 calib->low_fa++; 4845 4846 if (calib->cck_state != IWN_CCK_STATE_INIT && 4847 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 || 4848 calib->low_fa > 100)) { 4849 inc(calib->energy_cck, 2, limits->min_energy_cck); 4850 dec(calib->cck_x4, 3, limits->min_cck_x4); 4851 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4); 4852 } 4853 } else { 4854 /* Not worth to increase or decrease sensitivity. */ 4855 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4856 "%s: CCK normal false alarm count: %u\n", __func__, fa); 4857 calib->low_fa = 0; 4858 calib->noise_ref = noise_ref; 4859 4860 if (calib->cck_state == IWN_CCK_STATE_HIFA) { 4861 /* Previous interval had many false alarms. */ 4862 dec(calib->energy_cck, 8, energy_min); 4863 } 4864 calib->cck_state = IWN_CCK_STATE_INIT; 4865 } 4866 4867 if (needs_update) 4868 (void)iwn_send_sensitivity(sc); 4869 #undef dec 4870 #undef inc 4871 } 4872 4873 static int 4874 iwn_send_sensitivity(struct iwn_softc *sc) 4875 { 4876 struct iwn_calib_state *calib = &sc->calib; 4877 struct iwn_enhanced_sensitivity_cmd cmd; 4878 int len; 4879 4880 memset(&cmd, 0, sizeof cmd); 4881 len = sizeof (struct iwn_sensitivity_cmd); 4882 cmd.which = IWN_SENSITIVITY_WORKTBL; 4883 /* OFDM modulation. */ 4884 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1); 4885 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1); 4886 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4); 4887 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4); 4888 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm); 4889 cmd.energy_ofdm_th = htole16(62); 4890 /* CCK modulation. */ 4891 cmd.corr_cck_x4 = htole16(calib->cck_x4); 4892 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4); 4893 cmd.energy_cck = htole16(calib->energy_cck); 4894 /* Barker modulation: use default values. */ 4895 cmd.corr_barker = htole16(190); 4896 cmd.corr_barker_mrc = htole16(390); 4897 4898 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4899 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__, 4900 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4, 4901 calib->ofdm_mrc_x4, calib->cck_x4, 4902 calib->cck_mrc_x4, calib->energy_cck); 4903 4904 if (!(sc->sc_flags & IWN_FLAG_ENH_SENS)) 4905 goto send; 4906 /* Enhanced sensitivity settings. */ 4907 len = sizeof (struct iwn_enhanced_sensitivity_cmd); 4908 cmd.ofdm_det_slope_mrc = htole16(668); 4909 cmd.ofdm_det_icept_mrc = htole16(4); 4910 cmd.ofdm_det_slope = htole16(486); 4911 cmd.ofdm_det_icept = htole16(37); 4912 cmd.cck_det_slope_mrc = htole16(853); 4913 cmd.cck_det_icept_mrc = htole16(4); 4914 cmd.cck_det_slope = htole16(476); 4915 cmd.cck_det_icept = htole16(99); 4916 send: 4917 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, len, 1); 4918 } 4919 4920 /* 4921 * Set STA mode power saving level (between 0 and 5). 4922 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving. 4923 */ 4924 static int 4925 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async) 4926 { 4927 struct iwn_pmgt_cmd cmd; 4928 const struct iwn_pmgt *pmgt; 4929 uint32_t max, skip_dtim; 4930 uint32_t reg; 4931 int i; 4932 4933 /* Select which PS parameters to use. */ 4934 if (dtim <= 2) 4935 pmgt = &iwn_pmgt[0][level]; 4936 else if (dtim <= 10) 4937 pmgt = &iwn_pmgt[1][level]; 4938 else 4939 pmgt = &iwn_pmgt[2][level]; 4940 4941 memset(&cmd, 0, sizeof cmd); 4942 if (level != 0) /* not CAM */ 4943 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP); 4944 if (level == 5) 4945 cmd.flags |= htole16(IWN_PS_FAST_PD); 4946 /* Retrieve PCIe Active State Power Management (ASPM). */ 4947 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1); 4948 if (!(reg & 0x1)) /* L0s Entry disabled. */ 4949 cmd.flags |= htole16(IWN_PS_PCI_PMGT); 4950 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024); 4951 cmd.txtimeout = htole32(pmgt->txtimeout * 1024); 4952 4953 if (dtim == 0) { 4954 dtim = 1; 4955 skip_dtim = 0; 4956 } else 4957 skip_dtim = pmgt->skip_dtim; 4958 if (skip_dtim != 0) { 4959 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM); 4960 max = pmgt->intval[4]; 4961 if (max == (uint32_t)-1) 4962 max = dtim * (skip_dtim + 1); 4963 else if (max > dtim) 4964 max = (max / dtim) * dtim; 4965 } else 4966 max = dtim; 4967 for (i = 0; i < 5; i++) 4968 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i])); 4969 4970 DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n", 4971 level); 4972 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async); 4973 } 4974 4975 static int 4976 iwn_send_btcoex(struct iwn_softc *sc) 4977 { 4978 struct iwn_bluetooth cmd; 4979 4980 memset(&cmd, 0, sizeof cmd); 4981 cmd.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO; 4982 cmd.lead_time = IWN_BT_LEAD_TIME_DEF; 4983 cmd.max_kill = IWN_BT_MAX_KILL_DEF; 4984 DPRINTF(sc, IWN_DEBUG_RESET, "%s: configuring bluetooth coexistence\n", 4985 __func__); 4986 return iwn_cmd(sc, IWN_CMD_BT_COEX, &cmd, sizeof(cmd), 0); 4987 } 4988 4989 static int 4990 iwn_send_advanced_btcoex(struct iwn_softc *sc) 4991 { 4992 static const uint32_t btcoex_3wire[12] = { 4993 0xaaaaaaaa, 0xaaaaaaaa, 0xaeaaaaaa, 0xaaaaaaaa, 4994 0xcc00ff28, 0x0000aaaa, 0xcc00aaaa, 0x0000aaaa, 4995 0xc0004000, 0x00004000, 0xf0005000, 0xf0005000, 4996 }; 4997 struct iwn6000_btcoex_config btconfig; 4998 struct iwn_btcoex_priotable btprio; 4999 struct iwn_btcoex_prot btprot; 5000 int error, i; 5001 5002 memset(&btconfig, 0, sizeof btconfig); 5003 btconfig.flags = 145; 5004 btconfig.max_kill = 5; 5005 btconfig.bt3_t7_timer = 1; 5006 btconfig.kill_ack = htole32(0xffff0000); 5007 btconfig.kill_cts = htole32(0xffff0000); 5008 btconfig.sample_time = 2; 5009 btconfig.bt3_t2_timer = 0xc; 5010 for (i = 0; i < 12; i++) 5011 btconfig.lookup_table[i] = htole32(btcoex_3wire[i]); 5012 btconfig.valid = htole16(0xff); 5013 btconfig.prio_boost = 0xf0; 5014 DPRINTF(sc, IWN_DEBUG_RESET, 5015 "%s: configuring advanced bluetooth coexistence\n", __func__); 5016 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig, sizeof(btconfig), 1); 5017 if (error != 0) 5018 return error; 5019 5020 memset(&btprio, 0, sizeof btprio); 5021 btprio.calib_init1 = 0x6; 5022 btprio.calib_init2 = 0x7; 5023 btprio.calib_periodic_low1 = 0x2; 5024 btprio.calib_periodic_low2 = 0x3; 5025 btprio.calib_periodic_high1 = 0x4; 5026 btprio.calib_periodic_high2 = 0x5; 5027 btprio.dtim = 0x6; 5028 btprio.scan52 = 0x8; 5029 btprio.scan24 = 0xa; 5030 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PRIOTABLE, &btprio, sizeof(btprio), 5031 1); 5032 if (error != 0) 5033 return error; 5034 5035 /* Force BT state machine change. */ 5036 memset(&btprot, 0, sizeof btprio); 5037 btprot.open = 1; 5038 btprot.type = 1; 5039 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1); 5040 if (error != 0) 5041 return error; 5042 btprot.open = 0; 5043 return iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1); 5044 } 5045 5046 static int 5047 iwn5000_runtime_calib(struct iwn_softc *sc) 5048 { 5049 struct iwn5000_calib_config cmd; 5050 5051 memset(&cmd, 0, sizeof cmd); 5052 cmd.ucode.once.enable = 0xffffffff; 5053 cmd.ucode.once.start = IWN5000_CALIB_DC; 5054 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 5055 "%s: configuring runtime calibration\n", __func__); 5056 return iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof(cmd), 0); 5057 } 5058 5059 static int 5060 iwn_config(struct iwn_softc *sc) 5061 { 5062 struct iwn_ops *ops = &sc->ops; 5063 struct ifnet *ifp = sc->sc_ifp; 5064 struct ieee80211com *ic = ifp->if_l2com; 5065 uint32_t txmask; 5066 uint16_t rxchain; 5067 int error; 5068 5069 if (sc->hw_type == IWN_HW_REV_TYPE_6005) { 5070 /* Set radio temperature sensor offset. */ 5071 error = iwn5000_temp_offset_calib(sc); 5072 if (error != 0) { 5073 device_printf(sc->sc_dev, 5074 "%s: could not set temperature offset\n", __func__); 5075 return error; 5076 } 5077 } 5078 5079 if (sc->hw_type == IWN_HW_REV_TYPE_6050) { 5080 /* Configure runtime DC calibration. */ 5081 error = iwn5000_runtime_calib(sc); 5082 if (error != 0) { 5083 device_printf(sc->sc_dev, 5084 "%s: could not configure runtime calibration\n", 5085 __func__); 5086 return error; 5087 } 5088 } 5089 5090 /* Configure valid TX chains for >=5000 Series. */ 5091 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 5092 txmask = htole32(sc->txchainmask); 5093 DPRINTF(sc, IWN_DEBUG_RESET, 5094 "%s: configuring valid TX chains 0x%x\n", __func__, txmask); 5095 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask, 5096 sizeof txmask, 0); 5097 if (error != 0) { 5098 device_printf(sc->sc_dev, 5099 "%s: could not configure valid TX chains, " 5100 "error %d\n", __func__, error); 5101 return error; 5102 } 5103 } 5104 5105 /* Configure bluetooth coexistence. */ 5106 if (sc->sc_flags & IWN_FLAG_ADV_BTCOEX) 5107 error = iwn_send_advanced_btcoex(sc); 5108 else 5109 error = iwn_send_btcoex(sc); 5110 if (error != 0) { 5111 device_printf(sc->sc_dev, 5112 "%s: could not configure bluetooth coexistence, error %d\n", 5113 __func__, error); 5114 return error; 5115 } 5116 5117 /* Set mode, channel, RX filter and enable RX. */ 5118 memset(&sc->rxon, 0, sizeof (struct iwn_rxon)); 5119 IEEE80211_ADDR_COPY(sc->rxon.myaddr, IF_LLADDR(ifp)); 5120 IEEE80211_ADDR_COPY(sc->rxon.wlap, IF_LLADDR(ifp)); 5121 sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_curchan); 5122 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 5123 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 5124 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 5125 switch (ic->ic_opmode) { 5126 case IEEE80211_M_STA: 5127 sc->rxon.mode = IWN_MODE_STA; 5128 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST); 5129 break; 5130 case IEEE80211_M_MONITOR: 5131 sc->rxon.mode = IWN_MODE_MONITOR; 5132 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST | 5133 IWN_FILTER_CTL | IWN_FILTER_PROMISC); 5134 break; 5135 default: 5136 /* Should not get there. */ 5137 break; 5138 } 5139 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */ 5140 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */ 5141 sc->rxon.ht_single_mask = 0xff; 5142 sc->rxon.ht_dual_mask = 0xff; 5143 sc->rxon.ht_triple_mask = 0xff; 5144 rxchain = 5145 IWN_RXCHAIN_VALID(sc->rxchainmask) | 5146 IWN_RXCHAIN_MIMO_COUNT(2) | 5147 IWN_RXCHAIN_IDLE_COUNT(2); 5148 sc->rxon.rxchain = htole16(rxchain); 5149 DPRINTF(sc, IWN_DEBUG_RESET, "%s: setting configuration\n", __func__); 5150 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 0); 5151 if (error != 0) { 5152 device_printf(sc->sc_dev, "%s: RXON command failed\n", 5153 __func__); 5154 return error; 5155 } 5156 5157 if ((error = iwn_add_broadcast_node(sc, 0)) != 0) { 5158 device_printf(sc->sc_dev, "%s: could not add broadcast node\n", 5159 __func__); 5160 return error; 5161 } 5162 5163 /* Configuration has changed, set TX power accordingly. */ 5164 if ((error = ops->set_txpower(sc, ic->ic_curchan, 0)) != 0) { 5165 device_printf(sc->sc_dev, "%s: could not set TX power\n", 5166 __func__); 5167 return error; 5168 } 5169 5170 if ((error = iwn_set_critical_temp(sc)) != 0) { 5171 device_printf(sc->sc_dev, 5172 "%s: could not set critical temperature\n", __func__); 5173 return error; 5174 } 5175 5176 /* Set power saving level to CAM during initialization. */ 5177 if ((error = iwn_set_pslevel(sc, 0, 0, 0)) != 0) { 5178 device_printf(sc->sc_dev, 5179 "%s: could not set power saving level\n", __func__); 5180 return error; 5181 } 5182 return 0; 5183 } 5184 5185 /* 5186 * Add an ssid element to a frame. 5187 */ 5188 static uint8_t * 5189 ieee80211_add_ssid(uint8_t *frm, const uint8_t *ssid, u_int len) 5190 { 5191 *frm++ = IEEE80211_ELEMID_SSID; 5192 *frm++ = len; 5193 memcpy(frm, ssid, len); 5194 return frm + len; 5195 } 5196 5197 static int 5198 iwn_scan(struct iwn_softc *sc) 5199 { 5200 struct ifnet *ifp = sc->sc_ifp; 5201 struct ieee80211com *ic = ifp->if_l2com; 5202 struct ieee80211_scan_state *ss = ic->ic_scan; /*XXX*/ 5203 struct ieee80211_node *ni = ss->ss_vap->iv_bss; 5204 struct iwn_scan_hdr *hdr; 5205 struct iwn_cmd_data *tx; 5206 struct iwn_scan_essid *essid; 5207 struct iwn_scan_chan *chan; 5208 struct ieee80211_frame *wh; 5209 struct ieee80211_rateset *rs; 5210 struct ieee80211_channel *c; 5211 uint8_t *buf, *frm; 5212 uint16_t rxchain; 5213 uint8_t txant; 5214 int buflen, error; 5215 5216 buf = malloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO); 5217 if (buf == NULL) { 5218 device_printf(sc->sc_dev, 5219 "%s: could not allocate buffer for scan command\n", 5220 __func__); 5221 return ENOMEM; 5222 } 5223 hdr = (struct iwn_scan_hdr *)buf; 5224 /* 5225 * Move to the next channel if no frames are received within 10ms 5226 * after sending the probe request. 5227 */ 5228 hdr->quiet_time = htole16(10); /* timeout in milliseconds */ 5229 hdr->quiet_threshold = htole16(1); /* min # of packets */ 5230 5231 /* Select antennas for scanning. */ 5232 rxchain = 5233 IWN_RXCHAIN_VALID(sc->rxchainmask) | 5234 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) | 5235 IWN_RXCHAIN_DRIVER_FORCE; 5236 if (IEEE80211_IS_CHAN_A(ic->ic_curchan) && 5237 sc->hw_type == IWN_HW_REV_TYPE_4965) { 5238 /* Ant A must be avoided in 5GHz because of an HW bug. */ 5239 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_B); 5240 } else /* Use all available RX antennas. */ 5241 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask); 5242 hdr->rxchain = htole16(rxchain); 5243 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON); 5244 5245 tx = (struct iwn_cmd_data *)(hdr + 1); 5246 tx->flags = htole32(IWN_TX_AUTO_SEQ); 5247 tx->id = sc->broadcast_id; 5248 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 5249 5250 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) { 5251 /* Send probe requests at 6Mbps. */ 5252 tx->rate = htole32(0xd); 5253 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; 5254 } else { 5255 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO); 5256 if (sc->hw_type == IWN_HW_REV_TYPE_4965 && 5257 sc->rxon.associd && sc->rxon.chan > 14) 5258 tx->rate = htole32(0xd); 5259 else { 5260 /* Send probe requests at 1Mbps. */ 5261 tx->rate = htole32(10 | IWN_RFLAG_CCK); 5262 } 5263 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; 5264 } 5265 /* Use the first valid TX antenna. */ 5266 txant = IWN_LSB(sc->txchainmask); 5267 tx->rate |= htole32(IWN_RFLAG_ANT(txant)); 5268 5269 essid = (struct iwn_scan_essid *)(tx + 1); 5270 if (ss->ss_ssid[0].len != 0) { 5271 essid[0].id = IEEE80211_ELEMID_SSID; 5272 essid[0].len = ss->ss_ssid[0].len; 5273 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len); 5274 } 5275 /* 5276 * Build a probe request frame. Most of the following code is a 5277 * copy & paste of what is done in net80211. 5278 */ 5279 wh = (struct ieee80211_frame *)(essid + 20); 5280 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 5281 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 5282 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 5283 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr); 5284 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp)); 5285 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr); 5286 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */ 5287 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */ 5288 5289 frm = (uint8_t *)(wh + 1); 5290 frm = ieee80211_add_ssid(frm, NULL, 0); 5291 frm = ieee80211_add_rates(frm, rs); 5292 if (rs->rs_nrates > IEEE80211_RATE_SIZE) 5293 frm = ieee80211_add_xrates(frm, rs); 5294 if (ic->ic_htcaps & IEEE80211_HTC_HT) 5295 frm = ieee80211_add_htcap(frm, ni); 5296 5297 /* Set length of probe request. */ 5298 tx->len = htole16(frm - (uint8_t *)wh); 5299 5300 c = ic->ic_curchan; 5301 chan = (struct iwn_scan_chan *)frm; 5302 chan->chan = htole16(ieee80211_chan2ieee(ic, c)); 5303 chan->flags = 0; 5304 if (ss->ss_nssid > 0) 5305 chan->flags |= htole32(IWN_CHAN_NPBREQS(1)); 5306 chan->dsp_gain = 0x6e; 5307 if (IEEE80211_IS_CHAN_5GHZ(c) && 5308 !(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 5309 chan->rf_gain = 0x3b; 5310 chan->active = htole16(24); 5311 chan->passive = htole16(110); 5312 chan->flags |= htole32(IWN_CHAN_ACTIVE); 5313 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 5314 chan->rf_gain = 0x3b; 5315 chan->active = htole16(24); 5316 if (sc->rxon.associd) 5317 chan->passive = htole16(78); 5318 else 5319 chan->passive = htole16(110); 5320 hdr->crc_threshold = 0xffff; 5321 } else if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 5322 chan->rf_gain = 0x28; 5323 chan->active = htole16(36); 5324 chan->passive = htole16(120); 5325 chan->flags |= htole32(IWN_CHAN_ACTIVE); 5326 } else { 5327 chan->rf_gain = 0x28; 5328 chan->active = htole16(36); 5329 if (sc->rxon.associd) 5330 chan->passive = htole16(88); 5331 else 5332 chan->passive = htole16(120); 5333 hdr->crc_threshold = 0xffff; 5334 } 5335 5336 DPRINTF(sc, IWN_DEBUG_STATE, 5337 "%s: chan %u flags 0x%x rf_gain 0x%x " 5338 "dsp_gain 0x%x active 0x%x passive 0x%x\n", __func__, 5339 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain, 5340 chan->active, chan->passive); 5341 5342 hdr->nchan++; 5343 chan++; 5344 buflen = (uint8_t *)chan - buf; 5345 hdr->len = htole16(buflen); 5346 5347 DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n", 5348 hdr->nchan); 5349 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1); 5350 free(buf, M_DEVBUF); 5351 return error; 5352 } 5353 5354 static int 5355 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap) 5356 { 5357 struct iwn_ops *ops = &sc->ops; 5358 struct ifnet *ifp = sc->sc_ifp; 5359 struct ieee80211com *ic = ifp->if_l2com; 5360 struct ieee80211_node *ni = vap->iv_bss; 5361 int error; 5362 5363 /* Update adapter configuration. */ 5364 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 5365 sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 5366 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 5367 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 5368 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 5369 if (ic->ic_flags & IEEE80211_F_SHSLOT) 5370 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 5371 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 5372 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 5373 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 5374 sc->rxon.cck_mask = 0; 5375 sc->rxon.ofdm_mask = 0x15; 5376 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 5377 sc->rxon.cck_mask = 0x03; 5378 sc->rxon.ofdm_mask = 0; 5379 } else { 5380 /* Assume 802.11b/g. */ 5381 sc->rxon.cck_mask = 0x0f; 5382 sc->rxon.ofdm_mask = 0x15; 5383 } 5384 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n", 5385 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask, 5386 sc->rxon.ofdm_mask); 5387 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 5388 if (error != 0) { 5389 device_printf(sc->sc_dev, "%s: RXON command failed, error %d\n", 5390 __func__, error); 5391 return error; 5392 } 5393 5394 /* Configuration has changed, set TX power accordingly. */ 5395 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) { 5396 device_printf(sc->sc_dev, 5397 "%s: could not set TX power, error %d\n", __func__, error); 5398 return error; 5399 } 5400 /* 5401 * Reconfiguring RXON clears the firmware nodes table so we must 5402 * add the broadcast node again. 5403 */ 5404 if ((error = iwn_add_broadcast_node(sc, 1)) != 0) { 5405 device_printf(sc->sc_dev, 5406 "%s: could not add broadcast node, error %d\n", __func__, 5407 error); 5408 return error; 5409 } 5410 return 0; 5411 } 5412 5413 static int 5414 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap) 5415 { 5416 struct iwn_ops *ops = &sc->ops; 5417 struct ifnet *ifp = sc->sc_ifp; 5418 struct ieee80211com *ic = ifp->if_l2com; 5419 struct ieee80211_node *ni = vap->iv_bss; 5420 struct iwn_node_info node; 5421 uint32_t htflags = 0; 5422 int error; 5423 5424 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 5425 /* Link LED blinks while monitoring. */ 5426 iwn_set_led(sc, IWN_LED_LINK, 5, 5); 5427 return 0; 5428 } 5429 if ((error = iwn_set_timing(sc, ni)) != 0) { 5430 device_printf(sc->sc_dev, 5431 "%s: could not set timing, error %d\n", __func__, error); 5432 return error; 5433 } 5434 5435 /* Update adapter configuration. */ 5436 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 5437 sc->rxon.associd = htole16(IEEE80211_AID(ni->ni_associd)); 5438 sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 5439 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 5440 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 5441 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 5442 if (ic->ic_flags & IEEE80211_F_SHSLOT) 5443 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 5444 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 5445 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 5446 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 5447 sc->rxon.cck_mask = 0; 5448 sc->rxon.ofdm_mask = 0x15; 5449 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 5450 sc->rxon.cck_mask = 0x03; 5451 sc->rxon.ofdm_mask = 0; 5452 } else { 5453 /* Assume 802.11b/g. */ 5454 sc->rxon.cck_mask = 0x0f; 5455 sc->rxon.ofdm_mask = 0x15; 5456 } 5457 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 5458 htflags |= IWN_RXON_HT_PROTMODE(ic->ic_curhtprotmode); 5459 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 5460 switch (ic->ic_curhtprotmode) { 5461 case IEEE80211_HTINFO_OPMODE_HT20PR: 5462 htflags |= IWN_RXON_HT_MODEPURE40; 5463 break; 5464 default: 5465 htflags |= IWN_RXON_HT_MODEMIXED; 5466 break; 5467 } 5468 } 5469 if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 5470 htflags |= IWN_RXON_HT_HT40MINUS; 5471 } 5472 sc->rxon.flags |= htole32(htflags); 5473 sc->rxon.filter |= htole32(IWN_FILTER_BSS); 5474 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x\n", 5475 sc->rxon.chan, sc->rxon.flags); 5476 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 5477 if (error != 0) { 5478 device_printf(sc->sc_dev, 5479 "%s: could not update configuration, error %d\n", __func__, 5480 error); 5481 return error; 5482 } 5483 5484 /* Configuration has changed, set TX power accordingly. */ 5485 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) { 5486 device_printf(sc->sc_dev, 5487 "%s: could not set TX power, error %d\n", __func__, error); 5488 return error; 5489 } 5490 5491 /* Fake a join to initialize the TX rate. */ 5492 ((struct iwn_node *)ni)->id = IWN_ID_BSS; 5493 iwn_newassoc(ni, 1); 5494 5495 /* Add BSS node. */ 5496 memset(&node, 0, sizeof node); 5497 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 5498 node.id = IWN_ID_BSS; 5499 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 5500 switch (ni->ni_htcap & IEEE80211_HTCAP_SMPS) { 5501 case IEEE80211_HTCAP_SMPS_ENA: 5502 node.htflags |= htole32(IWN_SMPS_MIMO_DIS); 5503 break; 5504 case IEEE80211_HTCAP_SMPS_DYNAMIC: 5505 node.htflags |= htole32(IWN_SMPS_MIMO_PROT); 5506 break; 5507 } 5508 node.htflags |= htole32(IWN_AMDPU_SIZE_FACTOR(3) | 5509 IWN_AMDPU_DENSITY(5)); /* 4us */ 5510 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 5511 node.htflags |= htole32(IWN_NODE_HT40); 5512 } 5513 DPRINTF(sc, IWN_DEBUG_STATE, "%s: adding BSS node\n", __func__); 5514 error = ops->add_node(sc, &node, 1); 5515 if (error != 0) { 5516 device_printf(sc->sc_dev, 5517 "%s: could not add BSS node, error %d\n", __func__, error); 5518 return error; 5519 } 5520 DPRINTF(sc, IWN_DEBUG_STATE, "%s: setting link quality for node %d\n", 5521 __func__, node.id); 5522 if ((error = iwn_set_link_quality(sc, ni)) != 0) { 5523 device_printf(sc->sc_dev, 5524 "%s: could not setup link quality for node %d, error %d\n", 5525 __func__, node.id, error); 5526 return error; 5527 } 5528 5529 if ((error = iwn_init_sensitivity(sc)) != 0) { 5530 device_printf(sc->sc_dev, 5531 "%s: could not set sensitivity, error %d\n", __func__, 5532 error); 5533 return error; 5534 } 5535 /* Start periodic calibration timer. */ 5536 sc->calib.state = IWN_CALIB_STATE_ASSOC; 5537 sc->calib_cnt = 0; 5538 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 5539 sc); 5540 5541 /* Link LED always on while associated. */ 5542 iwn_set_led(sc, IWN_LED_LINK, 0, 1); 5543 return 0; 5544 } 5545 5546 /* 5547 * This function is called by upper layer when an ADDBA request is received 5548 * from another STA and before the ADDBA response is sent. 5549 */ 5550 static int 5551 iwn_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 5552 int baparamset, int batimeout, int baseqctl) 5553 { 5554 #define MS(_v, _f) (((_v) & _f) >> _f##_S) 5555 struct iwn_softc *sc = ni->ni_ic->ic_ifp->if_softc; 5556 struct iwn_ops *ops = &sc->ops; 5557 struct iwn_node *wn = (void *)ni; 5558 struct iwn_node_info node; 5559 uint16_t ssn; 5560 uint8_t tid; 5561 int error; 5562 5563 tid = MS(le16toh(baparamset), IEEE80211_BAPS_TID); 5564 ssn = MS(le16toh(baseqctl), IEEE80211_BASEQ_START); 5565 5566 memset(&node, 0, sizeof node); 5567 node.id = wn->id; 5568 node.control = IWN_NODE_UPDATE; 5569 node.flags = IWN_FLAG_SET_ADDBA; 5570 node.addba_tid = tid; 5571 node.addba_ssn = htole16(ssn); 5572 DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n", 5573 wn->id, tid, ssn); 5574 error = ops->add_node(sc, &node, 1); 5575 if (error != 0) 5576 return error; 5577 return sc->sc_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 5578 #undef MS 5579 } 5580 5581 /* 5582 * This function is called by upper layer on teardown of an HT-immediate 5583 * Block Ack agreement (eg. uppon receipt of a DELBA frame). 5584 */ 5585 static void 5586 iwn_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 5587 { 5588 struct ieee80211com *ic = ni->ni_ic; 5589 struct iwn_softc *sc = ic->ic_ifp->if_softc; 5590 struct iwn_ops *ops = &sc->ops; 5591 struct iwn_node *wn = (void *)ni; 5592 struct iwn_node_info node; 5593 uint8_t tid; 5594 5595 /* XXX: tid as an argument */ 5596 for (tid = 0; tid < WME_NUM_TID; tid++) { 5597 if (&ni->ni_rx_ampdu[tid] == rap) 5598 break; 5599 } 5600 5601 memset(&node, 0, sizeof node); 5602 node.id = wn->id; 5603 node.control = IWN_NODE_UPDATE; 5604 node.flags = IWN_FLAG_SET_DELBA; 5605 node.delba_tid = tid; 5606 DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid); 5607 (void)ops->add_node(sc, &node, 1); 5608 sc->sc_ampdu_rx_stop(ni, rap); 5609 } 5610 5611 static int 5612 iwn_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 5613 int dialogtoken, int baparamset, int batimeout) 5614 { 5615 struct iwn_softc *sc = ni->ni_ic->ic_ifp->if_softc; 5616 int qid; 5617 5618 for (qid = sc->firstaggqueue; qid < sc->ntxqs; qid++) { 5619 if (sc->qid2tap[qid] == NULL) 5620 break; 5621 } 5622 if (qid == sc->ntxqs) { 5623 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: not free aggregation queue\n", 5624 __func__); 5625 return 0; 5626 } 5627 tap->txa_private = malloc(sizeof(int), M_DEVBUF, M_NOWAIT); 5628 if (tap->txa_private == NULL) { 5629 device_printf(sc->sc_dev, 5630 "%s: failed to alloc TX aggregation structure\n", __func__); 5631 return 0;