Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/iwn/if_iwn.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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: releng/8.3/sys/dev/iwn/if_iwn.c 226628 2011-10-22 09:43:35Z bschmidt $"); 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(R) Centrino(R) Advanced-N 6205" }, 83 { 0x8086, 0x0083, "Intel(R) Centrino(R) Wireless-N 1000" }, 84 { 0x8086, 0x0084, "Intel(R) Centrino(R) Wireless-N 1000" }, 85 { 0x8086, 0x0085, "Intel(R) Centrino(R) Advanced-N 6205" }, 86 { 0x8086, 0x0087, "Intel(R) Centrino(R) Advanced-N + WiMAX 6250" }, 87 { 0x8086, 0x0089, "Intel(R) Centrino(R) Advanced-N + WiMAX 6250" }, 88 { 0x8086, 0x008a, "Intel(R) Centrino(R) Wireless-N 1030" }, 89 { 0x8086, 0x008b, "Intel(R) Centrino(R) Wireless-N 1030" }, 90 { 0x8086, 0x0090, "Intel(R) Centrino(R) Advanced-N 6230" }, 91 { 0x8086, 0x0091, "Intel(R) Centrino(R) Advanced-N 6230" }, 92 { 0x8086, 0x0896, "Intel(R) Centrino(R) Wireless-N 130" }, 93 { 0x8086, 0x4229, "Intel(R) Wireless WiFi Link 4965" }, 94 { 0x8086, 0x422b, "Intel(R) Centrino(R) Ultimate-N 6300" }, 95 { 0x8086, 0x422c, "Intel(R) Centrino(R) Advanced-N 6200" }, 96 { 0x8086, 0x422d, "Intel(R) Wireless WiFi Link 4965" }, 97 { 0x8086, 0x4230, "Intel(R) Wireless WiFi Link 4965" }, 98 { 0x8086, 0x4232, "Intel(R) WiFi Link 5100" }, 99 { 0x8086, 0x4233, "Intel(R) Wireless WiFi Link 4965" }, 100 { 0x8086, 0x4235, "Intel(R) Ultimate N WiFi Link 5300" }, 101 { 0x8086, 0x4236, "Intel(R) Ultimate N WiFi Link 5300" }, 102 { 0x8086, 0x4237, "Intel(R) WiFi Link 5100" }, 103 { 0x8086, 0x4238, "Intel(R) Centrino(R) Ultimate-N 6300" }, 104 { 0x8086, 0x4239, "Intel(R) Centrino(R) Advanced-N 6200" }, 105 { 0x8086, 0x423a, "Intel(R) WiMAX/WiFi Link 5350" }, 106 { 0x8086, 0x423b, "Intel(R) WiMAX/WiFi Link 5350" }, 107 { 0x8086, 0x423c, "Intel(R) WiMAX/WiFi Link 5150" }, 108 { 0x8086, 0x423d, "Intel(R) WiMAX/WiFi Link 5150" }, 109 { 0, 0, NULL } 110 }; 111 112 static int iwn_probe(device_t); 113 static int iwn_attach(device_t); 114 static int iwn4965_attach(struct iwn_softc *, uint16_t); 115 static int iwn5000_attach(struct iwn_softc *, uint16_t); 116 static void iwn_radiotap_attach(struct iwn_softc *); 117 static void iwn_sysctlattach(struct iwn_softc *); 118 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *, 119 const char name[IFNAMSIZ], int unit, int opmode, 120 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 121 const uint8_t mac[IEEE80211_ADDR_LEN]); 122 static void iwn_vap_delete(struct ieee80211vap *); 123 static int iwn_detach(device_t); 124 static int iwn_shutdown(device_t); 125 static int iwn_suspend(device_t); 126 static int iwn_resume(device_t); 127 static int iwn_nic_lock(struct iwn_softc *); 128 static int iwn_eeprom_lock(struct iwn_softc *); 129 static int iwn_init_otprom(struct iwn_softc *); 130 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int); 131 static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int); 132 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *, 133 void **, bus_size_t, bus_size_t); 134 static void iwn_dma_contig_free(struct iwn_dma_info *); 135 static int iwn_alloc_sched(struct iwn_softc *); 136 static void iwn_free_sched(struct iwn_softc *); 137 static int iwn_alloc_kw(struct iwn_softc *); 138 static void iwn_free_kw(struct iwn_softc *); 139 static int iwn_alloc_ict(struct iwn_softc *); 140 static void iwn_free_ict(struct iwn_softc *); 141 static int iwn_alloc_fwmem(struct iwn_softc *); 142 static void iwn_free_fwmem(struct iwn_softc *); 143 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 144 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 145 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 146 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *, 147 int); 148 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 149 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 150 static void iwn5000_ict_reset(struct iwn_softc *); 151 static int iwn_read_eeprom(struct iwn_softc *, 152 uint8_t macaddr[IEEE80211_ADDR_LEN]); 153 static void iwn4965_read_eeprom(struct iwn_softc *); 154 static void iwn4965_print_power_group(struct iwn_softc *, int); 155 static void iwn5000_read_eeprom(struct iwn_softc *); 156 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *); 157 static void iwn_read_eeprom_band(struct iwn_softc *, int); 158 #if 0 /* HT */ 159 static void iwn_read_eeprom_ht40(struct iwn_softc *, int); 160 #endif 161 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t); 162 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *, 163 struct ieee80211_channel *); 164 static int iwn_setregdomain(struct ieee80211com *, 165 struct ieee80211_regdomain *, int, 166 struct ieee80211_channel[]); 167 static void iwn_read_eeprom_enhinfo(struct iwn_softc *); 168 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *, 169 const uint8_t mac[IEEE80211_ADDR_LEN]); 170 static void iwn_newassoc(struct ieee80211_node *, int); 171 static int iwn_media_change(struct ifnet *); 172 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); 173 static void iwn_calib_timeout(void *); 174 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *, 175 struct iwn_rx_data *); 176 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *, 177 struct iwn_rx_data *); 178 #if 0 /* HT */ 179 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *, 180 struct iwn_rx_data *); 181 #endif 182 static void iwn5000_rx_calib_results(struct iwn_softc *, 183 struct iwn_rx_desc *, struct iwn_rx_data *); 184 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *, 185 struct iwn_rx_data *); 186 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 187 struct iwn_rx_data *); 188 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 189 struct iwn_rx_data *); 190 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, 191 uint8_t); 192 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *); 193 static void iwn_notif_intr(struct iwn_softc *); 194 static void iwn_wakeup_intr(struct iwn_softc *); 195 static void iwn_rftoggle_intr(struct iwn_softc *); 196 static void iwn_fatal_intr(struct iwn_softc *); 197 static void iwn_intr(void *); 198 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t, 199 uint16_t); 200 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t, 201 uint16_t); 202 #ifdef notyet 203 static void iwn5000_reset_sched(struct iwn_softc *, int, int); 204 #endif 205 static uint8_t iwn_plcp_signal(int); 206 static int iwn_tx_data(struct iwn_softc *, struct mbuf *, 207 struct ieee80211_node *); 208 static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *, 209 struct ieee80211_node *, 210 const struct ieee80211_bpf_params *params); 211 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *, 212 const struct ieee80211_bpf_params *); 213 static void iwn_start(struct ifnet *); 214 static void iwn_start_locked(struct ifnet *); 215 static void iwn_watchdog(void *); 216 static int iwn_ioctl(struct ifnet *, u_long, caddr_t); 217 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 218 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *, 219 int); 220 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *, 221 int); 222 static int iwn_set_link_quality(struct iwn_softc *, 223 struct ieee80211_node *); 224 static int iwn_add_broadcast_node(struct iwn_softc *, int); 225 static int iwn_updateedca(struct ieee80211com *); 226 static void iwn_update_mcast(struct ifnet *); 227 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 228 static int iwn_set_critical_temp(struct iwn_softc *); 229 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *); 230 static void iwn4965_power_calibration(struct iwn_softc *, int); 231 static int iwn4965_set_txpower(struct iwn_softc *, 232 struct ieee80211_channel *, int); 233 static int iwn5000_set_txpower(struct iwn_softc *, 234 struct ieee80211_channel *, int); 235 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 236 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 237 static int iwn_get_noise(const struct iwn_rx_general_stats *); 238 static int iwn4965_get_temperature(struct iwn_softc *); 239 static int iwn5000_get_temperature(struct iwn_softc *); 240 static int iwn_init_sensitivity(struct iwn_softc *); 241 static void iwn_collect_noise(struct iwn_softc *, 242 const struct iwn_rx_general_stats *); 243 static int iwn4965_init_gains(struct iwn_softc *); 244 static int iwn5000_init_gains(struct iwn_softc *); 245 static int iwn4965_set_gains(struct iwn_softc *); 246 static int iwn5000_set_gains(struct iwn_softc *); 247 static void iwn_tune_sensitivity(struct iwn_softc *, 248 const struct iwn_rx_stats *); 249 static int iwn_send_sensitivity(struct iwn_softc *); 250 static int iwn_set_pslevel(struct iwn_softc *, int, int, int); 251 static int iwn_send_btcoex(struct iwn_softc *); 252 static int iwn_send_advanced_btcoex(struct iwn_softc *); 253 static int iwn_config(struct iwn_softc *); 254 static uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int); 255 static int iwn_scan(struct iwn_softc *); 256 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap); 257 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap); 258 #if 0 /* HT */ 259 static int iwn_ampdu_rx_start(struct ieee80211com *, 260 struct ieee80211_node *, uint8_t); 261 static void iwn_ampdu_rx_stop(struct ieee80211com *, 262 struct ieee80211_node *, uint8_t); 263 static int iwn_ampdu_tx_start(struct ieee80211com *, 264 struct ieee80211_node *, uint8_t); 265 static void iwn_ampdu_tx_stop(struct ieee80211com *, 266 struct ieee80211_node *, uint8_t); 267 static void iwn4965_ampdu_tx_start(struct iwn_softc *, 268 struct ieee80211_node *, uint8_t, uint16_t); 269 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, 270 uint8_t, uint16_t); 271 static void iwn5000_ampdu_tx_start(struct iwn_softc *, 272 struct ieee80211_node *, uint8_t, uint16_t); 273 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, 274 uint8_t, uint16_t); 275 #endif 276 static int iwn5000_query_calibration(struct iwn_softc *); 277 static int iwn5000_send_calibration(struct iwn_softc *); 278 static int iwn5000_send_wimax_coex(struct iwn_softc *); 279 static int iwn5000_crystal_calib(struct iwn_softc *); 280 static int iwn5000_temp_offset_calib(struct iwn_softc *); 281 static int iwn4965_post_alive(struct iwn_softc *); 282 static int iwn5000_post_alive(struct iwn_softc *); 283 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *, 284 int); 285 static int iwn4965_load_firmware(struct iwn_softc *); 286 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t, 287 const uint8_t *, int); 288 static int iwn5000_load_firmware(struct iwn_softc *); 289 static int iwn_read_firmware_leg(struct iwn_softc *, 290 struct iwn_fw_info *); 291 static int iwn_read_firmware_tlv(struct iwn_softc *, 292 struct iwn_fw_info *, uint16_t); 293 static int iwn_read_firmware(struct iwn_softc *); 294 static int iwn_clock_wait(struct iwn_softc *); 295 static int iwn_apm_init(struct iwn_softc *); 296 static void iwn_apm_stop_master(struct iwn_softc *); 297 static void iwn_apm_stop(struct iwn_softc *); 298 static int iwn4965_nic_config(struct iwn_softc *); 299 static int iwn5000_nic_config(struct iwn_softc *); 300 static int iwn_hw_prepare(struct iwn_softc *); 301 static int iwn_hw_init(struct iwn_softc *); 302 static void iwn_hw_stop(struct iwn_softc *); 303 static void iwn_radio_on(void *, int); 304 static void iwn_radio_off(void *, int); 305 static void iwn_init_locked(struct iwn_softc *); 306 static void iwn_init(void *); 307 static void iwn_stop_locked(struct iwn_softc *); 308 static void iwn_stop(struct iwn_softc *); 309 static void iwn_scan_start(struct ieee80211com *); 310 static void iwn_scan_end(struct ieee80211com *); 311 static void iwn_set_channel(struct ieee80211com *); 312 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); 313 static void iwn_scan_mindwell(struct ieee80211_scan_state *); 314 static void iwn_hw_reset(void *, int); 315 316 #define IWN_DEBUG 317 #ifdef IWN_DEBUG 318 enum { 319 IWN_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 320 IWN_DEBUG_RECV = 0x00000002, /* basic recv operation */ 321 IWN_DEBUG_STATE = 0x00000004, /* 802.11 state transitions */ 322 IWN_DEBUG_TXPOW = 0x00000008, /* tx power processing */ 323 IWN_DEBUG_RESET = 0x00000010, /* reset processing */ 324 IWN_DEBUG_OPS = 0x00000020, /* iwn_ops processing */ 325 IWN_DEBUG_BEACON = 0x00000040, /* beacon handling */ 326 IWN_DEBUG_WATCHDOG = 0x00000080, /* watchdog timeout */ 327 IWN_DEBUG_INTR = 0x00000100, /* ISR */ 328 IWN_DEBUG_CALIBRATE = 0x00000200, /* periodic calibration */ 329 IWN_DEBUG_NODE = 0x00000400, /* node management */ 330 IWN_DEBUG_LED = 0x00000800, /* led management */ 331 IWN_DEBUG_CMD = 0x00001000, /* cmd submission */ 332 IWN_DEBUG_FATAL = 0x80000000, /* fatal errors */ 333 IWN_DEBUG_ANY = 0xffffffff 334 }; 335 336 #define DPRINTF(sc, m, fmt, ...) do { \ 337 if (sc->sc_debug & (m)) \ 338 printf(fmt, __VA_ARGS__); \ 339 } while (0) 340 341 static const char * 342 iwn_intr_str(uint8_t cmd) 343 { 344 switch (cmd) { 345 /* Notifications */ 346 case IWN_UC_READY: return "UC_READY"; 347 case IWN_ADD_NODE_DONE: return "ADD_NODE_DONE"; 348 case IWN_TX_DONE: return "TX_DONE"; 349 case IWN_START_SCAN: return "START_SCAN"; 350 case IWN_STOP_SCAN: return "STOP_SCAN"; 351 case IWN_RX_STATISTICS: return "RX_STATS"; 352 case IWN_BEACON_STATISTICS: return "BEACON_STATS"; 353 case IWN_STATE_CHANGED: return "STATE_CHANGED"; 354 case IWN_BEACON_MISSED: return "BEACON_MISSED"; 355 case IWN_RX_PHY: return "RX_PHY"; 356 case IWN_MPDU_RX_DONE: return "MPDU_RX_DONE"; 357 case IWN_RX_DONE: return "RX_DONE"; 358 359 /* Command Notifications */ 360 case IWN_CMD_RXON: return "IWN_CMD_RXON"; 361 case IWN_CMD_RXON_ASSOC: return "IWN_CMD_RXON_ASSOC"; 362 case IWN_CMD_EDCA_PARAMS: return "IWN_CMD_EDCA_PARAMS"; 363 case IWN_CMD_TIMING: return "IWN_CMD_TIMING"; 364 case IWN_CMD_LINK_QUALITY: return "IWN_CMD_LINK_QUALITY"; 365 case IWN_CMD_SET_LED: return "IWN_CMD_SET_LED"; 366 case IWN5000_CMD_WIMAX_COEX: return "IWN5000_CMD_WIMAX_COEX"; 367 case IWN5000_CMD_CALIB_CONFIG: return "IWN5000_CMD_CALIB_CONFIG"; 368 case IWN5000_CMD_CALIB_RESULT: return "IWN5000_CMD_CALIB_RESULT"; 369 case IWN5000_CMD_CALIB_COMPLETE: return "IWN5000_CMD_CALIB_COMPLETE"; 370 case IWN_CMD_SET_POWER_MODE: return "IWN_CMD_SET_POWER_MODE"; 371 case IWN_CMD_SCAN: return "IWN_CMD_SCAN"; 372 case IWN_CMD_SCAN_RESULTS: return "IWN_CMD_SCAN_RESULTS"; 373 case IWN_CMD_TXPOWER: return "IWN_CMD_TXPOWER"; 374 case IWN_CMD_TXPOWER_DBM: return "IWN_CMD_TXPOWER_DBM"; 375 case IWN5000_CMD_TX_ANT_CONFIG: return "IWN5000_CMD_TX_ANT_CONFIG"; 376 case IWN_CMD_BT_COEX: return "IWN_CMD_BT_COEX"; 377 case IWN_CMD_SET_CRITICAL_TEMP: return "IWN_CMD_SET_CRITICAL_TEMP"; 378 case IWN_CMD_SET_SENSITIVITY: return "IWN_CMD_SET_SENSITIVITY"; 379 case IWN_CMD_PHY_CALIB: return "IWN_CMD_PHY_CALIB"; 380 } 381 return "UNKNOWN INTR NOTIF/CMD"; 382 } 383 #else 384 #define DPRINTF(sc, m, fmt, ...) do { (void) sc; } while (0) 385 #endif 386 387 static device_method_t iwn_methods[] = { 388 /* Device interface */ 389 DEVMETHOD(device_probe, iwn_probe), 390 DEVMETHOD(device_attach, iwn_attach), 391 DEVMETHOD(device_detach, iwn_detach), 392 DEVMETHOD(device_shutdown, iwn_shutdown), 393 DEVMETHOD(device_suspend, iwn_suspend), 394 DEVMETHOD(device_resume, iwn_resume), 395 { 0, 0 } 396 }; 397 398 static driver_t iwn_driver = { 399 "iwn", 400 iwn_methods, 401 sizeof(struct iwn_softc) 402 }; 403 static devclass_t iwn_devclass; 404 405 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, 0, 0); 406 407 MODULE_DEPEND(iwn, firmware, 1, 1, 1); 408 MODULE_DEPEND(iwn, pci, 1, 1, 1); 409 MODULE_DEPEND(iwn, wlan, 1, 1, 1); 410 411 static int 412 iwn_probe(device_t dev) 413 { 414 const struct iwn_ident *ident; 415 416 for (ident = iwn_ident_table; ident->name != NULL; ident++) { 417 if (pci_get_vendor(dev) == ident->vendor && 418 pci_get_device(dev) == ident->device) { 419 device_set_desc(dev, ident->name); 420 return 0; 421 } 422 } 423 return ENXIO; 424 } 425 426 static int 427 iwn_attach(device_t dev) 428 { 429 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev); 430 struct ieee80211com *ic; 431 struct ifnet *ifp; 432 uint32_t reg; 433 int i, error, result; 434 uint8_t macaddr[IEEE80211_ADDR_LEN]; 435 436 sc->sc_dev = dev; 437 438 /* 439 * Get the offset of the PCI Express Capability Structure in PCI 440 * Configuration Space. 441 */ 442 error = pci_find_extcap(dev, PCIY_EXPRESS, &sc->sc_cap_off); 443 if (error != 0) { 444 device_printf(dev, "PCIe capability structure not found!\n"); 445 return error; 446 } 447 448 /* Clear device-specific "PCI retry timeout" register (41h). */ 449 pci_write_config(dev, 0x41, 0, 1); 450 451 /* Hardware bug workaround. */ 452 reg = pci_read_config(dev, PCIR_COMMAND, 1); 453 if (reg & PCIM_CMD_INTxDIS) { 454 DPRINTF(sc, IWN_DEBUG_RESET, "%s: PCIe INTx Disable set\n", 455 __func__); 456 reg &= ~PCIM_CMD_INTxDIS; 457 pci_write_config(dev, PCIR_COMMAND, reg, 1); 458 } 459 460 /* Enable bus-mastering. */ 461 pci_enable_busmaster(dev); 462 463 sc->mem_rid = PCIR_BAR(0); 464 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 465 RF_ACTIVE); 466 if (sc->mem == NULL) { 467 device_printf(dev, "can't map mem space\n"); 468 error = ENOMEM; 469 return error; 470 } 471 sc->sc_st = rman_get_bustag(sc->mem); 472 sc->sc_sh = rman_get_bushandle(sc->mem); 473 474 sc->irq_rid = 0; 475 if ((result = pci_msi_count(dev)) == 1 && 476 pci_alloc_msi(dev, &result) == 0) 477 sc->irq_rid = 1; 478 /* Install interrupt handler. */ 479 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 480 RF_ACTIVE | RF_SHAREABLE); 481 if (sc->irq == NULL) { 482 device_printf(dev, "can't map interrupt\n"); 483 error = ENOMEM; 484 goto fail; 485 } 486 487 IWN_LOCK_INIT(sc); 488 489 /* Read hardware revision and attach. */ 490 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> 4) & 0xf; 491 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 492 error = iwn4965_attach(sc, pci_get_device(dev)); 493 else 494 error = iwn5000_attach(sc, pci_get_device(dev)); 495 if (error != 0) { 496 device_printf(dev, "could not attach device, error %d\n", 497 error); 498 goto fail; 499 } 500 501 if ((error = iwn_hw_prepare(sc)) != 0) { 502 device_printf(dev, "hardware not ready, error %d\n", error); 503 goto fail; 504 } 505 506 /* Allocate DMA memory for firmware transfers. */ 507 if ((error = iwn_alloc_fwmem(sc)) != 0) { 508 device_printf(dev, 509 "could not allocate memory for firmware, error %d\n", 510 error); 511 goto fail; 512 } 513 514 /* Allocate "Keep Warm" page. */ 515 if ((error = iwn_alloc_kw(sc)) != 0) { 516 device_printf(dev, 517 "could not allocate keep warm page, error %d\n", error); 518 goto fail; 519 } 520 521 /* Allocate ICT table for 5000 Series. */ 522 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 523 (error = iwn_alloc_ict(sc)) != 0) { 524 device_printf(dev, "could not allocate ICT table, error %d\n", 525 error); 526 goto fail; 527 } 528 529 /* Allocate TX scheduler "rings". */ 530 if ((error = iwn_alloc_sched(sc)) != 0) { 531 device_printf(dev, 532 "could not allocate TX scheduler rings, error %d\n", error); 533 goto fail; 534 } 535 536 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */ 537 for (i = 0; i < sc->ntxqs; i++) { 538 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 539 device_printf(dev, 540 "could not allocate TX ring %d, error %d\n", i, 541 error); 542 goto fail; 543 } 544 } 545 546 /* Allocate RX ring. */ 547 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) { 548 device_printf(dev, "could not allocate RX ring, error %d\n", 549 error); 550 goto fail; 551 } 552 553 /* Clear pending interrupts. */ 554 IWN_WRITE(sc, IWN_INT, 0xffffffff); 555 556 /* Count the number of available chains. */ 557 sc->ntxchains = 558 ((sc->txchainmask >> 2) & 1) + 559 ((sc->txchainmask >> 1) & 1) + 560 ((sc->txchainmask >> 0) & 1); 561 sc->nrxchains = 562 ((sc->rxchainmask >> 2) & 1) + 563 ((sc->rxchainmask >> 1) & 1) + 564 ((sc->rxchainmask >> 0) & 1); 565 if (bootverbose) { 566 device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n", 567 sc->ntxchains, sc->nrxchains, sc->eeprom_domain, 568 macaddr, ":"); 569 } 570 571 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 572 if (ifp == NULL) { 573 device_printf(dev, "can not allocate ifnet structure\n"); 574 goto fail; 575 } 576 577 ic = ifp->if_l2com; 578 ic->ic_ifp = ifp; 579 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 580 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 581 582 /* Set device capabilities. */ 583 ic->ic_caps = 584 IEEE80211_C_STA /* station mode supported */ 585 | IEEE80211_C_MONITOR /* monitor mode supported */ 586 | IEEE80211_C_TXPMGT /* tx power management */ 587 | IEEE80211_C_SHSLOT /* short slot time supported */ 588 | IEEE80211_C_WPA 589 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 590 | IEEE80211_C_BGSCAN /* background scanning */ 591 #if 0 592 | IEEE80211_C_IBSS /* ibss/adhoc mode */ 593 #endif 594 | IEEE80211_C_WME /* WME */ 595 ; 596 #if 0 /* HT */ 597 /* XXX disable until HT channel setup works */ 598 ic->ic_htcaps = 599 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 600 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 601 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 602 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 603 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 604 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 605 /* s/w capabilities */ 606 | IEEE80211_HTC_HT /* HT operation */ 607 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 608 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 609 ; 610 611 /* Set HT capabilities. */ 612 ic->ic_htcaps = 613 #if IWN_RBUF_SIZE == 8192 614 IEEE80211_HTCAP_AMSDU7935 | 615 #endif 616 IEEE80211_HTCAP_CBW20_40 | 617 IEEE80211_HTCAP_SGI20 | 618 IEEE80211_HTCAP_SGI40; 619 if (sc->hw_type != IWN_HW_REV_TYPE_4965) 620 ic->ic_htcaps |= IEEE80211_HTCAP_GF; 621 if (sc->hw_type == IWN_HW_REV_TYPE_6050) 622 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DYN; 623 else 624 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DIS; 625 #endif 626 627 /* Read MAC address, channels, etc from EEPROM. */ 628 if ((error = iwn_read_eeprom(sc, macaddr)) != 0) { 629 device_printf(dev, "could not read EEPROM, error %d\n", 630 error); 631 goto fail; 632 } 633 634 #if 0 /* HT */ 635 /* Set supported HT rates. */ 636 ic->ic_sup_mcs[0] = 0xff; 637 if (sc->nrxchains > 1) 638 ic->ic_sup_mcs[1] = 0xff; 639 if (sc->nrxchains > 2) 640 ic->ic_sup_mcs[2] = 0xff; 641 #endif 642 643 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 644 ifp->if_softc = sc; 645 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 646 ifp->if_init = iwn_init; 647 ifp->if_ioctl = iwn_ioctl; 648 ifp->if_start = iwn_start; 649 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 650 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 651 IFQ_SET_READY(&ifp->if_snd); 652 653 ieee80211_ifattach(ic, macaddr); 654 ic->ic_vap_create = iwn_vap_create; 655 ic->ic_vap_delete = iwn_vap_delete; 656 ic->ic_raw_xmit = iwn_raw_xmit; 657 ic->ic_node_alloc = iwn_node_alloc; 658 #if 0 /* HT */ 659 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start; 660 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop; 661 ic->ic_ampdu_tx_start = iwn_ampdu_tx_start; 662 ic->ic_ampdu_tx_stop = iwn_ampdu_tx_stop; 663 #endif 664 ic->ic_newassoc = iwn_newassoc; 665 ic->ic_wme.wme_update = iwn_updateedca; 666 ic->ic_update_mcast = iwn_update_mcast; 667 ic->ic_scan_start = iwn_scan_start; 668 ic->ic_scan_end = iwn_scan_end; 669 ic->ic_set_channel = iwn_set_channel; 670 ic->ic_scan_curchan = iwn_scan_curchan; 671 ic->ic_scan_mindwell = iwn_scan_mindwell; 672 ic->ic_setregdomain = iwn_setregdomain; 673 674 iwn_radiotap_attach(sc); 675 676 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0); 677 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0); 678 TASK_INIT(&sc->sc_reinit_task, 0, iwn_hw_reset, sc); 679 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radio_on, sc); 680 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radio_off, sc); 681 682 iwn_sysctlattach(sc); 683 684 /* 685 * Hook our interrupt after all initialization is complete. 686 */ 687 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 688 NULL, iwn_intr, sc, &sc->sc_ih); 689 if (error != 0) { 690 device_printf(dev, "can't establish interrupt, error %d\n", 691 error); 692 goto fail; 693 } 694 695 if (bootverbose) 696 ieee80211_announce(ic); 697 return 0; 698 fail: 699 iwn_detach(dev); 700 return error; 701 } 702 703 static int 704 iwn4965_attach(struct iwn_softc *sc, uint16_t pid) 705 { 706 struct iwn_ops *ops = &sc->ops; 707 708 ops->load_firmware = iwn4965_load_firmware; 709 ops->read_eeprom = iwn4965_read_eeprom; 710 ops->post_alive = iwn4965_post_alive; 711 ops->nic_config = iwn4965_nic_config; 712 ops->update_sched = iwn4965_update_sched; 713 ops->get_temperature = iwn4965_get_temperature; 714 ops->get_rssi = iwn4965_get_rssi; 715 ops->set_txpower = iwn4965_set_txpower; 716 ops->init_gains = iwn4965_init_gains; 717 ops->set_gains = iwn4965_set_gains; 718 ops->add_node = iwn4965_add_node; 719 ops->tx_done = iwn4965_tx_done; 720 #if 0 /* HT */ 721 ops->ampdu_tx_start = iwn4965_ampdu_tx_start; 722 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop; 723 #endif 724 sc->ntxqs = IWN4965_NTXQUEUES; 725 sc->ndmachnls = IWN4965_NDMACHNLS; 726 sc->broadcast_id = IWN4965_ID_BROADCAST; 727 sc->rxonsz = IWN4965_RXONSZ; 728 sc->schedsz = IWN4965_SCHEDSZ; 729 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ; 730 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ; 731 sc->fwsz = IWN4965_FWSZ; 732 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT; 733 sc->limits = &iwn4965_sensitivity_limits; 734 sc->fwname = "iwn4965fw"; 735 /* Override chains masks, ROM is known to be broken. */ 736 sc->txchainmask = IWN_ANT_AB; 737 sc->rxchainmask = IWN_ANT_ABC; 738 739 return 0; 740 } 741 742 static int 743 iwn5000_attach(struct iwn_softc *sc, uint16_t pid) 744 { 745 struct iwn_ops *ops = &sc->ops; 746 747 ops->load_firmware = iwn5000_load_firmware; 748 ops->read_eeprom = iwn5000_read_eeprom; 749 ops->post_alive = iwn5000_post_alive; 750 ops->nic_config = iwn5000_nic_config; 751 ops->update_sched = iwn5000_update_sched; 752 ops->get_temperature = iwn5000_get_temperature; 753 ops->get_rssi = iwn5000_get_rssi; 754 ops->set_txpower = iwn5000_set_txpower; 755 ops->init_gains = iwn5000_init_gains; 756 ops->set_gains = iwn5000_set_gains; 757 ops->add_node = iwn5000_add_node; 758 ops->tx_done = iwn5000_tx_done; 759 #if 0 /* HT */ 760 ops->ampdu_tx_start = iwn5000_ampdu_tx_start; 761 ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop; 762 #endif 763 sc->ntxqs = IWN5000_NTXQUEUES; 764 sc->ndmachnls = IWN5000_NDMACHNLS; 765 sc->broadcast_id = IWN5000_ID_BROADCAST; 766 sc->rxonsz = IWN5000_RXONSZ; 767 sc->schedsz = IWN5000_SCHEDSZ; 768 sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ; 769 sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ; 770 sc->fwsz = IWN5000_FWSZ; 771 sc->sched_txfact_addr = IWN5000_SCHED_TXFACT; 772 sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN; 773 sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN; 774 775 switch (sc->hw_type) { 776 case IWN_HW_REV_TYPE_5100: 777 sc->limits = &iwn5000_sensitivity_limits; 778 sc->fwname = "iwn5000fw"; 779 /* Override chains masks, ROM is known to be broken. */ 780 sc->txchainmask = IWN_ANT_B; 781 sc->rxchainmask = IWN_ANT_AB; 782 break; 783 case IWN_HW_REV_TYPE_5150: 784 sc->limits = &iwn5150_sensitivity_limits; 785 sc->fwname = "iwn5150fw"; 786 break; 787 case IWN_HW_REV_TYPE_5300: 788 case IWN_HW_REV_TYPE_5350: 789 sc->limits = &iwn5000_sensitivity_limits; 790 sc->fwname = "iwn5000fw"; 791 break; 792 case IWN_HW_REV_TYPE_1000: 793 sc->limits = &iwn1000_sensitivity_limits; 794 sc->fwname = "iwn1000fw"; 795 break; 796 case IWN_HW_REV_TYPE_6000: 797 sc->limits = &iwn6000_sensitivity_limits; 798 sc->fwname = "iwn6000fw"; 799 if (pid == 0x422c || pid == 0x4239) { 800 sc->sc_flags |= IWN_FLAG_INTERNAL_PA; 801 /* Override chains masks, ROM is known to be broken. */ 802 sc->txchainmask = IWN_ANT_BC; 803 sc->rxchainmask = IWN_ANT_BC; 804 } 805 break; 806 case IWN_HW_REV_TYPE_6050: 807 sc->limits = &iwn6000_sensitivity_limits; 808 sc->fwname = "iwn6050fw"; 809 /* Override chains masks, ROM is known to be broken. */ 810 sc->txchainmask = IWN_ANT_AB; 811 sc->rxchainmask = IWN_ANT_AB; 812 break; 813 case IWN_HW_REV_TYPE_6005: 814 sc->limits = &iwn6000_sensitivity_limits; 815 if (pid != 0x0082 && pid != 0x0085) { 816 sc->fwname = "iwn6000g2bfw"; 817 sc->sc_flags |= IWN_FLAG_ADV_BTCOEX; 818 } else 819 sc->fwname = "iwn6000g2afw"; 820 break; 821 default: 822 device_printf(sc->sc_dev, "adapter type %d not supported\n", 823 sc->hw_type); 824 return ENOTSUP; 825 } 826 return 0; 827 } 828 829 /* 830 * Attach the interface to 802.11 radiotap. 831 */ 832 static void 833 iwn_radiotap_attach(struct iwn_softc *sc) 834 { 835 struct ifnet *ifp = sc->sc_ifp; 836 struct ieee80211com *ic = ifp->if_l2com; 837 838 ieee80211_radiotap_attach(ic, 839 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 840 IWN_TX_RADIOTAP_PRESENT, 841 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 842 IWN_RX_RADIOTAP_PRESENT); 843 } 844 845 static void 846 iwn_sysctlattach(struct iwn_softc *sc) 847 { 848 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 849 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 850 851 #ifdef IWN_DEBUG 852 sc->sc_debug = 0; 853 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 854 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "control debugging printfs"); 855 #endif 856 } 857 858 static struct ieee80211vap * 859 iwn_vap_create(struct ieee80211com *ic, 860 const char name[IFNAMSIZ], int unit, int opmode, int flags, 861 const uint8_t bssid[IEEE80211_ADDR_LEN], 862 const uint8_t mac[IEEE80211_ADDR_LEN]) 863 { 864 struct iwn_vap *ivp; 865 struct ieee80211vap *vap; 866 867 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 868 return NULL; 869 ivp = (struct iwn_vap *) malloc(sizeof(struct iwn_vap), 870 M_80211_VAP, M_NOWAIT | M_ZERO); 871 if (ivp == NULL) 872 return NULL; 873 vap = &ivp->iv_vap; 874 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 875 vap->iv_bmissthreshold = 10; /* override default */ 876 /* Override with driver methods. */ 877 ivp->iv_newstate = vap->iv_newstate; 878 vap->iv_newstate = iwn_newstate; 879 880 ieee80211_ratectl_init(vap); 881 /* Complete setup. */ 882 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status); 883 ic->ic_opmode = opmode; 884 return vap; 885 } 886 887 static void 888 iwn_vap_delete(struct ieee80211vap *vap) 889 { 890 struct iwn_vap *ivp = IWN_VAP(vap); 891 892 ieee80211_ratectl_deinit(vap); 893 ieee80211_vap_detach(vap); 894 free(ivp, M_80211_VAP); 895 } 896 897 static int 898 iwn_detach(device_t dev) 899 { 900 struct iwn_softc *sc = device_get_softc(dev); 901 struct ifnet *ifp = sc->sc_ifp; 902 struct ieee80211com *ic; 903 int qid; 904 905 if (ifp != NULL) { 906 ic = ifp->if_l2com; 907 908 ieee80211_draintask(ic, &sc->sc_reinit_task); 909 ieee80211_draintask(ic, &sc->sc_radioon_task); 910 ieee80211_draintask(ic, &sc->sc_radiooff_task); 911 912 iwn_stop(sc); 913 callout_drain(&sc->watchdog_to); 914 callout_drain(&sc->calib_to); 915 ieee80211_ifdetach(ic); 916 } 917 918 /* Uninstall interrupt handler. */ 919 if (sc->irq != NULL) { 920 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 921 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 922 if (sc->irq_rid == 1) 923 pci_release_msi(dev); 924 } 925 926 /* Free DMA resources. */ 927 iwn_free_rx_ring(sc, &sc->rxq); 928 for (qid = 0; qid < sc->ntxqs; qid++) 929 iwn_free_tx_ring(sc, &sc->txq[qid]); 930 iwn_free_sched(sc); 931 iwn_free_kw(sc); 932 if (sc->ict != NULL) 933 iwn_free_ict(sc); 934 iwn_free_fwmem(sc); 935 936 if (sc->mem != NULL) 937 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 938 939 if (ifp != NULL) 940 if_free(ifp); 941 942 IWN_LOCK_DESTROY(sc); 943 return 0; 944 } 945 946 static int 947 iwn_shutdown(device_t dev) 948 { 949 struct iwn_softc *sc = device_get_softc(dev); 950 951 iwn_stop(sc); 952 return 0; 953 } 954 955 static int 956 iwn_suspend(device_t dev) 957 { 958 struct iwn_softc *sc = device_get_softc(dev); 959 struct ifnet *ifp = sc->sc_ifp; 960 struct ieee80211com *ic = ifp->if_l2com; 961 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 962 963 iwn_stop(sc); 964 if (vap != NULL) 965 ieee80211_stop(vap); 966 return 0; 967 } 968 969 static int 970 iwn_resume(device_t dev) 971 { 972 struct iwn_softc *sc = device_get_softc(dev); 973 struct ifnet *ifp = sc->sc_ifp; 974 struct ieee80211com *ic = ifp->if_l2com; 975 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 976 977 /* Clear device-specific "PCI retry timeout" register (41h). */ 978 pci_write_config(dev, 0x41, 0, 1); 979 980 if (ifp->if_flags & IFF_UP) { 981 iwn_init(sc); 982 if (vap != NULL) 983 ieee80211_init(vap); 984 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 985 iwn_start(ifp); 986 } 987 return 0; 988 } 989 990 static int 991 iwn_nic_lock(struct iwn_softc *sc) 992 { 993 int ntries; 994 995 /* Request exclusive access to NIC. */ 996 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 997 998 /* Spin until we actually get the lock. */ 999 for (ntries = 0; ntries < 1000; ntries++) { 1000 if ((IWN_READ(sc, IWN_GP_CNTRL) & 1001 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) == 1002 IWN_GP_CNTRL_MAC_ACCESS_ENA) 1003 return 0; 1004 DELAY(10); 1005 } 1006 return ETIMEDOUT; 1007 } 1008 1009 static __inline void 1010 iwn_nic_unlock(struct iwn_softc *sc) 1011 { 1012 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 1013 } 1014 1015 static __inline uint32_t 1016 iwn_prph_read(struct iwn_softc *sc, uint32_t addr) 1017 { 1018 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr); 1019 IWN_BARRIER_READ_WRITE(sc); 1020 return IWN_READ(sc, IWN_PRPH_RDATA); 1021 } 1022 1023 static __inline void 1024 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1025 { 1026 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr); 1027 IWN_BARRIER_WRITE(sc); 1028 IWN_WRITE(sc, IWN_PRPH_WDATA, data); 1029 } 1030 1031 static __inline void 1032 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1033 { 1034 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask); 1035 } 1036 1037 static __inline void 1038 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1039 { 1040 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask); 1041 } 1042 1043 static __inline void 1044 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr, 1045 const uint32_t *data, int count) 1046 { 1047 for (; count > 0; count--, data++, addr += 4) 1048 iwn_prph_write(sc, addr, *data); 1049 } 1050 1051 static __inline uint32_t 1052 iwn_mem_read(struct iwn_softc *sc, uint32_t addr) 1053 { 1054 IWN_WRITE(sc, IWN_MEM_RADDR, addr); 1055 IWN_BARRIER_READ_WRITE(sc); 1056 return IWN_READ(sc, IWN_MEM_RDATA); 1057 } 1058 1059 static __inline void 1060 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1061 { 1062 IWN_WRITE(sc, IWN_MEM_WADDR, addr); 1063 IWN_BARRIER_WRITE(sc); 1064 IWN_WRITE(sc, IWN_MEM_WDATA, data); 1065 } 1066 1067 static __inline void 1068 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data) 1069 { 1070 uint32_t tmp; 1071 1072 tmp = iwn_mem_read(sc, addr & ~3); 1073 if (addr & 3) 1074 tmp = (tmp & 0x0000ffff) | data << 16; 1075 else 1076 tmp = (tmp & 0xffff0000) | data; 1077 iwn_mem_write(sc, addr & ~3, tmp); 1078 } 1079 1080 static __inline void 1081 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data, 1082 int count) 1083 { 1084 for (; count > 0; count--, addr += 4) 1085 *data++ = iwn_mem_read(sc, addr); 1086 } 1087 1088 static __inline void 1089 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val, 1090 int count) 1091 { 1092 for (; count > 0; count--, addr += 4) 1093 iwn_mem_write(sc, addr, val); 1094 } 1095 1096 static int 1097 iwn_eeprom_lock(struct iwn_softc *sc) 1098 { 1099 int i, ntries; 1100 1101 for (i = 0; i < 100; i++) { 1102 /* Request exclusive access to EEPROM. */ 1103 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 1104 IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1105 1106 /* Spin until we actually get the lock. */ 1107 for (ntries = 0; ntries < 100; ntries++) { 1108 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 1109 IWN_HW_IF_CONFIG_EEPROM_LOCKED) 1110 return 0; 1111 DELAY(10); 1112 } 1113 } 1114 return ETIMEDOUT; 1115 } 1116 1117 static __inline void 1118 iwn_eeprom_unlock(struct iwn_softc *sc) 1119 { 1120 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1121 } 1122 1123 /* 1124 * Initialize access by host to One Time Programmable ROM. 1125 * NB: This kind of ROM can be found on 1000 or 6000 Series only. 1126 */ 1127 static int 1128 iwn_init_otprom(struct iwn_softc *sc) 1129 { 1130 uint16_t prev, base, next; 1131 int count, error; 1132 1133 /* Wait for clock stabilization before accessing prph. */ 1134 if ((error = iwn_clock_wait(sc)) != 0) 1135 return error; 1136 1137 if ((error = iwn_nic_lock(sc)) != 0) 1138 return error; 1139 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1140 DELAY(5); 1141 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1142 iwn_nic_unlock(sc); 1143 1144 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */ 1145 if (sc->hw_type != IWN_HW_REV_TYPE_1000) { 1146 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT, 1147 IWN_RESET_LINK_PWR_MGMT_DIS); 1148 } 1149 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER); 1150 /* Clear ECC status. */ 1151 IWN_SETBITS(sc, IWN_OTP_GP, 1152 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS); 1153 1154 /* 1155 * Find the block before last block (contains the EEPROM image) 1156 * for HW without OTP shadow RAM. 1157 */ 1158 if (sc->hw_type == IWN_HW_REV_TYPE_1000) { 1159 /* Switch to absolute addressing mode. */ 1160 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS); 1161 base = prev = 0; 1162 for (count = 0; count < IWN1000_OTP_NBLOCKS; count++) { 1163 error = iwn_read_prom_data(sc, base, &next, 2); 1164 if (error != 0) 1165 return error; 1166 if (next == 0) /* End of linked-list. */ 1167 break; 1168 prev = base; 1169 base = le16toh(next); 1170 } 1171 if (count == 0 || count == IWN1000_OTP_NBLOCKS) 1172 return EIO; 1173 /* Skip "next" word. */ 1174 sc->prom_base = prev + 1; 1175 } 1176 return 0; 1177 } 1178 1179 static int 1180 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count) 1181 { 1182 uint8_t *out = data; 1183 uint32_t val, tmp; 1184 int ntries; 1185 1186 addr += sc->prom_base; 1187 for (; count > 0; count -= 2, addr++) { 1188 IWN_WRITE(sc, IWN_EEPROM, addr << 2); 1189 for (ntries = 0; ntries < 10; ntries++) { 1190 val = IWN_READ(sc, IWN_EEPROM); 1191 if (val & IWN_EEPROM_READ_VALID) 1192 break; 1193 DELAY(5); 1194 } 1195 if (ntries == 10) { 1196 device_printf(sc->sc_dev, 1197 "timeout reading ROM at 0x%x\n", addr); 1198 return ETIMEDOUT; 1199 } 1200 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1201 /* OTPROM, check for ECC errors. */ 1202 tmp = IWN_READ(sc, IWN_OTP_GP); 1203 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) { 1204 device_printf(sc->sc_dev, 1205 "OTPROM ECC error at 0x%x\n", addr); 1206 return EIO; 1207 } 1208 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) { 1209 /* Correctable ECC error, clear bit. */ 1210 IWN_SETBITS(sc, IWN_OTP_GP, 1211 IWN_OTP_GP_ECC_CORR_STTS); 1212 } 1213 } 1214 *out++ = val >> 16; 1215 if (count > 1) 1216 *out++ = val >> 24; 1217 } 1218 return 0; 1219 } 1220 1221 static void 1222 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1223 { 1224 if (error != 0) 1225 return; 1226 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 1227 *(bus_addr_t *)arg = segs[0].ds_addr; 1228 } 1229 1230 static int 1231 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma, 1232 void **kvap, bus_size_t size, bus_size_t alignment) 1233 { 1234 int error; 1235 1236 dma->tag = NULL; 1237 dma->size = size; 1238 1239 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment, 1240 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size, 1241 1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag); 1242 if (error != 0) 1243 goto fail; 1244 1245 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr, 1246 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map); 1247 if (error != 0) 1248 goto fail; 1249 1250 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size, 1251 iwn_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT); 1252 if (error != 0) 1253 goto fail; 1254 1255 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 1256 1257 if (kvap != NULL) 1258 *kvap = dma->vaddr; 1259 1260 return 0; 1261 1262 fail: iwn_dma_contig_free(dma); 1263 return error; 1264 } 1265 1266 static void 1267 iwn_dma_contig_free(struct iwn_dma_info *dma) 1268 { 1269 if (dma->map != NULL) { 1270 if (dma->vaddr != NULL) { 1271 bus_dmamap_sync(dma->tag, dma->map, 1272 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1273 bus_dmamap_unload(dma->tag, dma->map); 1274 bus_dmamem_free(dma->tag, &dma->vaddr, dma->map); 1275 dma->vaddr = NULL; 1276 } 1277 bus_dmamap_destroy(dma->tag, dma->map); 1278 dma->map = NULL; 1279 } 1280 if (dma->tag != NULL) { 1281 bus_dma_tag_destroy(dma->tag); 1282 dma->tag = NULL; 1283 } 1284 } 1285 1286 static int 1287 iwn_alloc_sched(struct iwn_softc *sc) 1288 { 1289 /* TX scheduler rings must be aligned on a 1KB boundary. */ 1290 return iwn_dma_contig_alloc(sc, &sc->sched_dma, (void **)&sc->sched, 1291 sc->schedsz, 1024); 1292 } 1293 1294 static void 1295 iwn_free_sched(struct iwn_softc *sc) 1296 { 1297 iwn_dma_contig_free(&sc->sched_dma); 1298 } 1299 1300 static int 1301 iwn_alloc_kw(struct iwn_softc *sc) 1302 { 1303 /* "Keep Warm" page must be aligned on a 4KB boundary. */ 1304 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096); 1305 } 1306 1307 static void 1308 iwn_free_kw(struct iwn_softc *sc) 1309 { 1310 iwn_dma_contig_free(&sc->kw_dma); 1311 } 1312 1313 static int 1314 iwn_alloc_ict(struct iwn_softc *sc) 1315 { 1316 /* ICT table must be aligned on a 4KB boundary. */ 1317 return iwn_dma_contig_alloc(sc, &sc->ict_dma, (void **)&sc->ict, 1318 IWN_ICT_SIZE, 4096); 1319 } 1320 1321 static void 1322 iwn_free_ict(struct iwn_softc *sc) 1323 { 1324 iwn_dma_contig_free(&sc->ict_dma); 1325 } 1326 1327 static int 1328 iwn_alloc_fwmem(struct iwn_softc *sc) 1329 { 1330 /* Must be aligned on a 16-byte boundary. */ 1331 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, sc->fwsz, 16); 1332 } 1333 1334 static void 1335 iwn_free_fwmem(struct iwn_softc *sc) 1336 { 1337 iwn_dma_contig_free(&sc->fw_dma); 1338 } 1339 1340 static int 1341 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1342 { 1343 bus_size_t size; 1344 int i, error; 1345 1346 ring->cur = 0; 1347 1348 /* Allocate RX descriptors (256-byte aligned). */ 1349 size = IWN_RX_RING_COUNT * sizeof (uint32_t); 1350 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1351 size, 256); 1352 if (error != 0) { 1353 device_printf(sc->sc_dev, 1354 "%s: could not allocate RX ring DMA memory, error %d\n", 1355 __func__, error); 1356 goto fail; 1357 } 1358 1359 /* Allocate RX status area (16-byte aligned). */ 1360 error = iwn_dma_contig_alloc(sc, &ring->stat_dma, (void **)&ring->stat, 1361 sizeof (struct iwn_rx_status), 16); 1362 if (error != 0) { 1363 device_printf(sc->sc_dev, 1364 "%s: could not allocate RX status DMA memory, error %d\n", 1365 __func__, error); 1366 goto fail; 1367 } 1368 1369 /* Create RX buffer DMA tag. */ 1370 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1371 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 1372 IWN_RBUF_SIZE, 1, IWN_RBUF_SIZE, BUS_DMA_NOWAIT, NULL, NULL, 1373 &ring->data_dmat); 1374 if (error != 0) { 1375 device_printf(sc->sc_dev, 1376 "%s: could not create RX buf DMA tag, error %d\n", 1377 __func__, error); 1378 goto fail; 1379 } 1380 1381 /* 1382 * Allocate and map RX buffers. 1383 */ 1384 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1385 struct iwn_rx_data *data = &ring->data[i]; 1386 bus_addr_t paddr; 1387 1388 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1389 if (error != 0) { 1390 device_printf(sc->sc_dev, 1391 "%s: could not create RX buf DMA map, error %d\n", 1392 __func__, error); 1393 goto fail; 1394 } 1395 1396 data->m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, 1397 IWN_RBUF_SIZE); 1398 if (data->m == NULL) { 1399 device_printf(sc->sc_dev, 1400 "%s: could not allocate RX mbuf\n", __func__); 1401 error = ENOBUFS; 1402 goto fail; 1403 } 1404 1405 error = bus_dmamap_load(ring->data_dmat, data->map, 1406 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 1407 &paddr, BUS_DMA_NOWAIT); 1408 if (error != 0 && error != EFBIG) { 1409 device_printf(sc->sc_dev, 1410 "%s: can't not map mbuf, error %d\n", __func__, 1411 error); 1412 goto fail; 1413 } 1414 1415 /* Set physical address of RX buffer (256-byte aligned). */ 1416 ring->desc[i] = htole32(paddr >> 8); 1417 } 1418 1419 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1420 BUS_DMASYNC_PREWRITE); 1421 1422 return 0; 1423 1424 fail: iwn_free_rx_ring(sc, ring); 1425 return error; 1426 } 1427 1428 static void 1429 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1430 { 1431 int ntries; 1432 1433 if (iwn_nic_lock(sc) == 0) { 1434 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 1435 for (ntries = 0; ntries < 1000; ntries++) { 1436 if (IWN_READ(sc, IWN_FH_RX_STATUS) & 1437 IWN_FH_RX_STATUS_IDLE) 1438 break; 1439 DELAY(10); 1440 } 1441 iwn_nic_unlock(sc); 1442 } 1443 ring->cur = 0; 1444 sc->last_rx_valid = 0; 1445 } 1446 1447 static void 1448 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1449 { 1450 int i; 1451 1452 iwn_dma_contig_free(&ring->desc_dma); 1453 iwn_dma_contig_free(&ring->stat_dma); 1454 1455 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1456 struct iwn_rx_data *data = &ring->data[i]; 1457 1458 if (data->m != NULL) { 1459 bus_dmamap_sync(ring->data_dmat, data->map, 1460 BUS_DMASYNC_POSTREAD); 1461 bus_dmamap_unload(ring->data_dmat, data->map); 1462 m_freem(data->m); 1463 data->m = NULL; 1464 } 1465 if (data->map != NULL) 1466 bus_dmamap_destroy(ring->data_dmat, data->map); 1467 } 1468 if (ring->data_dmat != NULL) { 1469 bus_dma_tag_destroy(ring->data_dmat); 1470 ring->data_dmat = NULL; 1471 } 1472 } 1473 1474 static int 1475 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid) 1476 { 1477 bus_addr_t paddr; 1478 bus_size_t size; 1479 int i, error; 1480 1481 ring->qid = qid; 1482 ring->queued = 0; 1483 ring->cur = 0; 1484 1485 /* Allocate TX descriptors (256-byte aligned). */ 1486 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc); 1487 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1488 size, 256); 1489 if (error != 0) { 1490 device_printf(sc->sc_dev, 1491 "%s: could not allocate TX ring DMA memory, error %d\n", 1492 __func__, error); 1493 goto fail; 1494 } 1495 /* 1496 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need 1497 * to allocate commands space for other rings. 1498 * XXX Do we really need to allocate descriptors for other rings? 1499 */ 1500 if (qid > 4) 1501 return 0; 1502 1503 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd); 1504 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 1505 size, 4); 1506 if (error != 0) { 1507 device_printf(sc->sc_dev, 1508 "%s: could not allocate TX cmd DMA memory, error %d\n", 1509 __func__, error); 1510 goto fail; 1511 } 1512 1513 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1514 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1515 IWN_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL, 1516 &ring->data_dmat); 1517 if (error != 0) { 1518 device_printf(sc->sc_dev, 1519 "%s: could not create TX buf DMA tag, error %d\n", 1520 __func__, error); 1521 goto fail; 1522 } 1523 1524 paddr = ring->cmd_dma.paddr; 1525 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1526 struct iwn_tx_data *data = &ring->data[i]; 1527 1528 data->cmd_paddr = paddr; 1529 data->scratch_paddr = paddr + 12; 1530 paddr += sizeof (struct iwn_tx_cmd); 1531 1532 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1533 if (error != 0) { 1534 device_printf(sc->sc_dev, 1535 "%s: could not create TX buf DMA map, error %d\n", 1536 __func__, error); 1537 goto fail; 1538 } 1539 } 1540 return 0; 1541 1542 fail: iwn_free_tx_ring(sc, ring); 1543 return error; 1544 } 1545 1546 static void 1547 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1548 { 1549 int i; 1550 1551 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1552 struct iwn_tx_data *data = &ring->data[i]; 1553 1554 if (data->m != NULL) { 1555 bus_dmamap_sync(ring->data_dmat, data->map, 1556 BUS_DMASYNC_POSTWRITE); 1557 bus_dmamap_unload(ring->data_dmat, data->map); 1558 m_freem(data->m); 1559 data->m = NULL; 1560 } 1561 } 1562 /* Clear TX descriptors. */ 1563 memset(ring->desc, 0, ring->desc_dma.size); 1564 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1565 BUS_DMASYNC_PREWRITE); 1566 sc->qfullmsk &= ~(1 << ring->qid); 1567 ring->queued = 0; 1568 ring->cur = 0; 1569 } 1570 1571 static void 1572 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1573 { 1574 int i; 1575 1576 iwn_dma_contig_free(&ring->desc_dma); 1577 iwn_dma_contig_free(&ring->cmd_dma); 1578 1579 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1580 struct iwn_tx_data *data = &ring->data[i]; 1581 1582 if (data->m != NULL) { 1583 bus_dmamap_sync(ring->data_dmat, data->map, 1584 BUS_DMASYNC_POSTWRITE); 1585 bus_dmamap_unload(ring->data_dmat, data->map); 1586 m_freem(data->m); 1587 } 1588 if (data->map != NULL) 1589 bus_dmamap_destroy(ring->data_dmat, data->map); 1590 } 1591 if (ring->data_dmat != NULL) { 1592 bus_dma_tag_destroy(ring->data_dmat); 1593 ring->data_dmat = NULL; 1594 } 1595 } 1596 1597 static void 1598 iwn5000_ict_reset(struct iwn_softc *sc) 1599 { 1600 /* Disable interrupts. */ 1601 IWN_WRITE(sc, IWN_INT_MASK, 0); 1602 1603 /* Reset ICT table. */ 1604 memset(sc->ict, 0, IWN_ICT_SIZE); 1605 sc->ict_cur = 0; 1606 1607 /* Set physical address of ICT table (4KB aligned). */ 1608 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__); 1609 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | 1610 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12); 1611 1612 /* Enable periodic RX interrupt. */ 1613 sc->int_mask |= IWN_INT_RX_PERIODIC; 1614 /* Switch to ICT interrupt mode in driver. */ 1615 sc->sc_flags |= IWN_FLAG_USE_ICT; 1616 1617 /* Re-enable interrupts. */ 1618 IWN_WRITE(sc, IWN_INT, 0xffffffff); 1619 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 1620 } 1621 1622 static int 1623 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 1624 { 1625 struct iwn_ops *ops = &sc->ops; 1626 uint16_t val; 1627 int error; 1628 1629 /* Check whether adapter has an EEPROM or an OTPROM. */ 1630 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 && 1631 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP)) 1632 sc->sc_flags |= IWN_FLAG_HAS_OTPROM; 1633 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n", 1634 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM"); 1635 1636 /* Adapter has to be powered on for EEPROM access to work. */ 1637 if ((error = iwn_apm_init(sc)) != 0) { 1638 device_printf(sc->sc_dev, 1639 "%s: could not power ON adapter, error %d\n", __func__, 1640 error); 1641 return error; 1642 } 1643 1644 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) { 1645 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__); 1646 return EIO; 1647 } 1648 if ((error = iwn_eeprom_lock(sc)) != 0) { 1649 device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n", 1650 __func__, error); 1651 return error; 1652 } 1653 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1654 if ((error = iwn_init_otprom(sc)) != 0) { 1655 device_printf(sc->sc_dev, 1656 "%s: could not initialize OTPROM, error %d\n", 1657 __func__, error); 1658 return error; 1659 } 1660 } 1661 1662 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2); 1663 DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val)); 1664 /* Check if HT support is bonded out. */ 1665 if (val & htole16(IWN_EEPROM_SKU_CAP_11N)) 1666 sc->sc_flags |= IWN_FLAG_HAS_11N; 1667 1668 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2); 1669 sc->rfcfg = le16toh(val); 1670 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg); 1671 /* Read Tx/Rx chains from ROM unless it's known to be broken. */ 1672 if (sc->txchainmask == 0) 1673 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg); 1674 if (sc->rxchainmask == 0) 1675 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg); 1676 1677 /* Read MAC address. */ 1678 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6); 1679 1680 /* Read adapter-specific information from EEPROM. */ 1681 ops->read_eeprom(sc); 1682 1683 iwn_apm_stop(sc); /* Power OFF adapter. */ 1684 1685 iwn_eeprom_unlock(sc); 1686 return 0; 1687 } 1688 1689 static void 1690 iwn4965_read_eeprom(struct iwn_softc *sc) 1691 { 1692 uint32_t addr; 1693 uint16_t val; 1694 int i; 1695 1696 /* Read regulatory domain (4 ASCII characters). */ 1697 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4); 1698 1699 /* Read the list of authorized channels (20MHz ones only). */ 1700 for (i = 0; i < 5; i++) { 1701 addr = iwn4965_regulatory_bands[i]; 1702 iwn_read_eeprom_channels(sc, i, addr); 1703 } 1704 1705 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */ 1706 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2); 1707 sc->maxpwr2GHz = val & 0xff; 1708 sc->maxpwr5GHz = val >> 8; 1709 /* Check that EEPROM values are within valid range. */ 1710 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 1711 sc->maxpwr5GHz = 38; 1712 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 1713 sc->maxpwr2GHz = 38; 1714 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n", 1715 sc->maxpwr2GHz, sc->maxpwr5GHz); 1716 1717 /* Read samples for each TX power group. */ 1718 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands, 1719 sizeof sc->bands); 1720 1721 /* Read voltage at which samples were taken. */ 1722 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2); 1723 sc->eeprom_voltage = (int16_t)le16toh(val); 1724 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n", 1725 sc->eeprom_voltage); 1726 1727 #ifdef IWN_DEBUG 1728 /* Print samples. */ 1729 if (sc->sc_debug & IWN_DEBUG_ANY) { 1730 for (i = 0; i < IWN_NBANDS; i++) 1731 iwn4965_print_power_group(sc, i); 1732 } 1733 #endif 1734 } 1735 1736 #ifdef IWN_DEBUG 1737 static void 1738 iwn4965_print_power_group(struct iwn_softc *sc, int i) 1739 { 1740 struct iwn4965_eeprom_band *band = &sc->bands[i]; 1741 struct iwn4965_eeprom_chan_samples *chans = band->chans; 1742 int j, c; 1743 1744 printf("===band %d===\n", i); 1745 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 1746 printf("chan1 num=%d\n", chans[0].num); 1747 for (c = 0; c < 2; c++) { 1748 for (j = 0; j < IWN_NSAMPLES; j++) { 1749 printf("chain %d, sample %d: temp=%d gain=%d " 1750 "power=%d pa_det=%d\n", c, j, 1751 chans[0].samples[c][j].temp, 1752 chans[0].samples[c][j].gain, 1753 chans[0].samples[c][j].power, 1754 chans[0].samples[c][j].pa_det); 1755 } 1756 } 1757 printf("chan2 num=%d\n", chans[1].num); 1758 for (c = 0; c < 2; c++) { 1759 for (j = 0; j < IWN_NSAMPLES; j++) { 1760 printf("chain %d, sample %d: temp=%d gain=%d " 1761 "power=%d pa_det=%d\n", c, j, 1762 chans[1].samples[c][j].temp, 1763 chans[1].samples[c][j].gain, 1764 chans[1].samples[c][j].power, 1765 chans[1].samples[c][j].pa_det); 1766 } 1767 } 1768 } 1769 #endif 1770 1771 static void 1772 iwn5000_read_eeprom(struct iwn_softc *sc) 1773 { 1774 struct iwn5000_eeprom_calib_hdr hdr; 1775 int32_t volt; 1776 uint32_t base, addr; 1777 uint16_t val; 1778 int i; 1779 1780 /* Read regulatory domain (4 ASCII characters). */ 1781 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 1782 base = le16toh(val); 1783 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN, 1784 sc->eeprom_domain, 4); 1785 1786 /* Read the list of authorized channels (20MHz ones only). */ 1787 for (i = 0; i < 5; i++) { 1788 addr = base + iwn5000_regulatory_bands[i]; 1789 iwn_read_eeprom_channels(sc, i, addr); 1790 } 1791 1792 /* Read enhanced TX power information for 6000 Series. */ 1793 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 1794 iwn_read_eeprom_enhinfo(sc); 1795 1796 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2); 1797 base = le16toh(val); 1798 iwn_read_prom_data(sc, base, &hdr, sizeof hdr); 1799 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 1800 "%s: calib version=%u pa type=%u voltage=%u\n", __func__, 1801 hdr.version, hdr.pa_type, le16toh(hdr.volt)); 1802 sc->calib_ver = hdr.version; 1803 1804 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 1805 /* Compute temperature offset. */ 1806 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 1807 sc->eeprom_temp = le16toh(val); 1808 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 1809 volt = le16toh(val); 1810 sc->temp_off = sc->eeprom_temp - (volt / -5); 1811 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n", 1812 sc->eeprom_temp, volt, sc->temp_off); 1813 } else { 1814 /* Read crystal calibration. */ 1815 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL, 1816 &sc->eeprom_crystal, sizeof (uint32_t)); 1817 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n", 1818 le32toh(sc->eeprom_crystal)); 1819 } 1820 } 1821 1822 /* 1823 * Translate EEPROM flags to net80211. 1824 */ 1825 static uint32_t 1826 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel) 1827 { 1828 uint32_t nflags; 1829 1830 nflags = 0; 1831 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0) 1832 nflags |= IEEE80211_CHAN_PASSIVE; 1833 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0) 1834 nflags |= IEEE80211_CHAN_NOADHOC; 1835 if (channel->flags & IWN_EEPROM_CHAN_RADAR) { 1836 nflags |= IEEE80211_CHAN_DFS; 1837 /* XXX apparently IBSS may still be marked */ 1838 nflags |= IEEE80211_CHAN_NOADHOC; 1839 } 1840 1841 return nflags; 1842 } 1843 1844 static void 1845 iwn_read_eeprom_band(struct iwn_softc *sc, int n) 1846 { 1847 struct ifnet *ifp = sc->sc_ifp; 1848 struct ieee80211com *ic = ifp->if_l2com; 1849 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 1850 const struct iwn_chan_band *band = &iwn_bands[n]; 1851 struct ieee80211_channel *c; 1852 uint8_t chan; 1853 int i, nflags; 1854 1855 for (i = 0; i < band->nchan; i++) { 1856 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 1857 DPRINTF(sc, IWN_DEBUG_RESET, 1858 "skip chan %d flags 0x%x maxpwr %d\n", 1859 band->chan[i], channels[i].flags, 1860 channels[i].maxpwr); 1861 continue; 1862 } 1863 chan = band->chan[i]; 1864 nflags = iwn_eeprom_channel_flags(&channels[i]); 1865 1866 c = &ic->ic_channels[ic->ic_nchans++]; 1867 c->ic_ieee = chan; 1868 c->ic_maxregpower = channels[i].maxpwr; 1869 c->ic_maxpower = 2*c->ic_maxregpower; 1870 1871 if (n == 0) { /* 2GHz band */ 1872 c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_G); 1873 /* G =>'s B is supported */ 1874 c->ic_flags = IEEE80211_CHAN_B | nflags; 1875 c = &ic->ic_channels[ic->ic_nchans++]; 1876 c[0] = c[-1]; 1877 c->ic_flags = IEEE80211_CHAN_G | nflags; 1878 } else { /* 5GHz band */ 1879 c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_A); 1880 c->ic_flags = IEEE80211_CHAN_A | nflags; 1881 } 1882 1883 /* Save maximum allowed TX power for this channel. */ 1884 sc->maxpwr[chan] = channels[i].maxpwr; 1885 1886 DPRINTF(sc, IWN_DEBUG_RESET, 1887 "add chan %d flags 0x%x maxpwr %d\n", chan, 1888 channels[i].flags, channels[i].maxpwr); 1889 1890 #if 0 /* HT */ 1891 /* XXX no constraints on using HT20 */ 1892 /* add HT20, HT40 added separately */ 1893 c = &ic->ic_channels[ic->ic_nchans++]; 1894 c[0] = c[-1]; 1895 c->ic_flags |= IEEE80211_CHAN_HT20; 1896 /* XXX NARROW =>'s 1/2 and 1/4 width? */ 1897 #endif 1898 } 1899 } 1900 1901 #if 0 /* HT */ 1902 static void 1903 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n) 1904 { 1905 struct ifnet *ifp = sc->sc_ifp; 1906 struct ieee80211com *ic = ifp->if_l2com; 1907 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 1908 const struct iwn_chan_band *band = &iwn_bands[n]; 1909 struct ieee80211_channel *c, *cent, *extc; 1910 int i; 1911 1912 for (i = 0; i < band->nchan; i++) { 1913 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID) || 1914 !(channels[i].flags & IWN_EEPROM_CHAN_WIDE)) { 1915 DPRINTF(sc, IWN_DEBUG_RESET, 1916 "skip chan %d flags 0x%x maxpwr %d\n", 1917 band->chan[i], channels[i].flags, 1918 channels[i].maxpwr); 1919 continue; 1920 } 1921 /* 1922 * Each entry defines an HT40 channel pair; find the 1923 * center channel, then the extension channel above. 1924 */ 1925 cent = ieee80211_find_channel_byieee(ic, band->chan[i], 1926 band->flags & ~IEEE80211_CHAN_HT); 1927 if (cent == NULL) { /* XXX shouldn't happen */ 1928 device_printf(sc->sc_dev, 1929 "%s: no entry for channel %d\n", 1930 __func__, band->chan[i]); 1931 continue; 1932 } 1933 extc = ieee80211_find_channel(ic, cent->ic_freq+20, 1934 band->flags & ~IEEE80211_CHAN_HT); 1935 if (extc == NULL) { 1936 DPRINTF(sc, IWN_DEBUG_RESET, 1937 "skip chan %d, extension channel not found\n", 1938 band->chan[i]); 1939 continue; 1940 } 1941 1942 DPRINTF(sc, IWN_DEBUG_RESET, 1943 "add ht40 chan %d flags 0x%x maxpwr %d\n", 1944 band->chan[i], channels[i].flags, channels[i].maxpwr); 1945 1946 c = &ic->ic_channels[ic->ic_nchans++]; 1947 c[0] = cent[0]; 1948 c->ic_extieee = extc->ic_ieee; 1949 c->ic_flags &= ~IEEE80211_CHAN_HT; 1950 c->ic_flags |= IEEE80211_CHAN_HT40U; 1951 c = &ic->ic_channels[ic->ic_nchans++]; 1952 c[0] = extc[0]; 1953 c->ic_extieee = cent->ic_ieee; 1954 c->ic_flags &= ~IEEE80211_CHAN_HT; 1955 c->ic_flags |= IEEE80211_CHAN_HT40D; 1956 } 1957 } 1958 #endif 1959 1960 static void 1961 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr) 1962 { 1963 struct ifnet *ifp = sc->sc_ifp; 1964 struct ieee80211com *ic = ifp->if_l2com; 1965 1966 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n], 1967 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan)); 1968 1969 if (n < 5) 1970 iwn_read_eeprom_band(sc, n); 1971 #if 0 /* HT */ 1972 else 1973 iwn_read_eeprom_ht40(sc, n); 1974 #endif 1975 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 1976 } 1977 1978 static struct iwn_eeprom_chan * 1979 iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c) 1980 { 1981 int i, j; 1982 1983 for (j = 0; j < 7; j++) { 1984 for (i = 0; i < iwn_bands[j].nchan; i++) { 1985 if (iwn_bands[j].chan[i] == c->ic_ieee) 1986 return &sc->eeprom_channels[j][i]; 1987 } 1988 } 1989 1990 return NULL; 1991 } 1992 1993 /* 1994 * Enforce flags read from EEPROM. 1995 */ 1996 static int 1997 iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 1998 int nchan, struct ieee80211_channel chans[]) 1999 { 2000 struct iwn_softc *sc = ic->ic_ifp->if_softc; 2001 int i; 2002 2003 for (i = 0; i < nchan; i++) { 2004 struct ieee80211_channel *c = &chans[i]; 2005 struct iwn_eeprom_chan *channel; 2006 2007 channel = iwn_find_eeprom_channel(sc, c); 2008 if (channel == NULL) { 2009 if_printf(ic->ic_ifp, 2010 "%s: invalid channel %u freq %u/0x%x\n", 2011 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 2012 return EINVAL; 2013 } 2014 c->ic_flags |= iwn_eeprom_channel_flags(channel); 2015 } 2016 2017 return 0; 2018 } 2019 2020 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) 2021 2022 static void 2023 iwn_read_eeprom_enhinfo(struct iwn_softc *sc) 2024 { 2025 struct iwn_eeprom_enhinfo enhinfo[35]; 2026 uint16_t val, base; 2027 int8_t maxpwr; 2028 int i; 2029 2030 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2031 base = le16toh(val); 2032 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO, 2033 enhinfo, sizeof enhinfo); 2034 2035 memset(sc->enh_maxpwr, 0, sizeof sc->enh_maxpwr); 2036 for (i = 0; i < nitems(enhinfo); i++) { 2037 if (enhinfo[i].chan == 0 || enhinfo[i].reserved != 0) 2038 continue; /* Skip invalid entries. */ 2039 2040 maxpwr = 0; 2041 if (sc->txchainmask & IWN_ANT_A) 2042 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]); 2043 if (sc->txchainmask & IWN_ANT_B) 2044 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]); 2045 if (sc->txchainmask & IWN_ANT_C) 2046 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]); 2047 if (sc->ntxchains == 2) 2048 maxpwr = MAX(maxpwr, enhinfo[i].mimo2); 2049 else if (sc->ntxchains == 3) 2050 maxpwr = MAX(maxpwr, enhinfo[i].mimo3); 2051 maxpwr /= 2; /* Convert half-dBm to dBm. */ 2052 2053 DPRINTF(sc, IWN_DEBUG_RESET, "enhinfo %d, maxpwr=%d\n", i, 2054 maxpwr); 2055 sc->enh_maxpwr[i] = maxpwr; 2056 } 2057 } 2058 2059 static struct ieee80211_node * 2060 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2061 { 2062 return malloc(sizeof (struct iwn_node), M_80211_NODE,M_NOWAIT | M_ZERO); 2063 } 2064 2065 static void 2066 iwn_newassoc(struct ieee80211_node *ni, int isnew) 2067 { 2068 struct iwn_node *wn = (void *)ni; 2069 int ridx, i; 2070 2071 for (i = 0; i < ni->ni_rates.rs_nrates; i++) { 2072 ridx = iwn_plcp_signal(ni->ni_rates.rs_rates[i]); 2073 wn->ridx[i] = ridx; 2074 } 2075 } 2076 2077 static int 2078 iwn_media_change(struct ifnet *ifp) 2079 { 2080 int error; 2081 2082 error = ieee80211_media_change(ifp); 2083 /* NB: only the fixed rate can change and that doesn't need a reset */ 2084 return (error == ENETRESET ? 0 : error); 2085 } 2086 2087 static int 2088 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2089 { 2090 struct iwn_vap *ivp = IWN_VAP(vap); 2091 struct ieee80211com *ic = vap->iv_ic; 2092 struct iwn_softc *sc = ic->ic_ifp->if_softc; 2093 int error = 0; 2094 2095 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__, 2096 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]); 2097 2098 IEEE80211_UNLOCK(ic); 2099 IWN_LOCK(sc); 2100 callout_stop(&sc->calib_to); 2101 2102 switch (nstate) { 2103 case IEEE80211_S_ASSOC: 2104 if (vap->iv_state != IEEE80211_S_RUN) 2105 break; 2106 /* FALLTHROUGH */ 2107 case IEEE80211_S_AUTH: 2108 if (vap->iv_state == IEEE80211_S_AUTH) 2109 break; 2110 2111 /* 2112 * !AUTH -> AUTH transition requires state reset to handle 2113 * reassociations correctly. 2114 */ 2115 sc->rxon.associd = 0; 2116 sc->rxon.filter &= ~htole32(IWN_FILTER_BSS); 2117 sc->calib.state = IWN_CALIB_STATE_INIT; 2118 2119 if ((error = iwn_auth(sc, vap)) != 0) { 2120 device_printf(sc->sc_dev, 2121 "%s: could not move to auth state\n", __func__); 2122 } 2123 break; 2124 2125 case IEEE80211_S_RUN: 2126 /* 2127 * RUN -> RUN transition; Just restart the timers. 2128 */ 2129 if (vap->iv_state == IEEE80211_S_RUN) { 2130 sc->calib_cnt = 0; 2131 break; 2132 } 2133 2134 /* 2135 * !RUN -> RUN requires setting the association id 2136 * which is done with a firmware cmd. We also defer 2137 * starting the timers until that work is done. 2138 */ 2139 if ((error = iwn_run(sc, vap)) != 0) { 2140 device_printf(sc->sc_dev, 2141 "%s: could not move to run state\n", __func__); 2142 } 2143 break; 2144 2145 case IEEE80211_S_INIT: 2146 sc->calib.state = IWN_CALIB_STATE_INIT; 2147 break; 2148 2149 default: 2150 break; 2151 } 2152 IWN_UNLOCK(sc); 2153 IEEE80211_LOCK(ic); 2154 if (error != 0) 2155 return error; 2156 return ivp->iv_newstate(vap, nstate, arg); 2157 } 2158 2159 static void 2160 iwn_calib_timeout(void *arg) 2161 { 2162 struct iwn_softc *sc = arg; 2163 2164 IWN_LOCK_ASSERT(sc); 2165 2166 /* Force automatic TX power calibration every 60 secs. */ 2167 if (++sc->calib_cnt >= 120) { 2168 uint32_t flags = 0; 2169 2170 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n", 2171 "sending request for statistics"); 2172 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, 2173 sizeof flags, 1); 2174 sc->calib_cnt = 0; 2175 } 2176 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 2177 sc); 2178 } 2179 2180 /* 2181 * Process an RX_PHY firmware notification. This is usually immediately 2182 * followed by an MPDU_RX_DONE notification. 2183 */ 2184 static void 2185 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2186 struct iwn_rx_data *data) 2187 { 2188 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1); 2189 2190 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__); 2191 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2192 2193 /* Save RX statistics, they will be used on MPDU_RX_DONE. */ 2194 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 2195 sc->last_rx_valid = 1; 2196 } 2197 2198 /* 2199 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification. 2200 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one. 2201 */ 2202 static void 2203 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2204 struct iwn_rx_data *data) 2205 { 2206 struct iwn_ops *ops = &sc->ops; 2207 struct ifnet *ifp = sc->sc_ifp; 2208 struct ieee80211com *ic = ifp->if_l2com; 2209 struct iwn_rx_ring *ring = &sc->rxq; 2210 struct ieee80211_frame *wh; 2211 struct ieee80211_node *ni; 2212 struct mbuf *m, *m1; 2213 struct iwn_rx_stat *stat; 2214 caddr_t head; 2215 bus_addr_t paddr; 2216 uint32_t flags; 2217 int error, len, rssi, nf; 2218 2219 if (desc->type == IWN_MPDU_RX_DONE) { 2220 /* Check for prior RX_PHY notification. */ 2221 if (!sc->last_rx_valid) { 2222 DPRINTF(sc, IWN_DEBUG_ANY, 2223 "%s: missing RX_PHY\n", __func__); 2224 return; 2225 } 2226 sc->last_rx_valid = 0; 2227 stat = &sc->last_rx_stat; 2228 } else 2229 stat = (struct iwn_rx_stat *)(desc + 1); 2230 2231 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2232 2233 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 2234 device_printf(sc->sc_dev, 2235 "%s: invalid RX statistic header, len %d\n", __func__, 2236 stat->cfg_phy_len); 2237 return; 2238 } 2239 if (desc->type == IWN_MPDU_RX_DONE) { 2240 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1); 2241 head = (caddr_t)(mpdu + 1); 2242 len = le16toh(mpdu->len); 2243 } else { 2244 head = (caddr_t)(stat + 1) + stat->cfg_phy_len; 2245 len = le16toh(stat->len); 2246 } 2247 2248 flags = le32toh(*(uint32_t *)(head + len)); 2249 2250 /* Discard frames with a bad FCS early. */ 2251 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 2252 DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n", 2253 __func__, flags); 2254 ifp->if_ierrors++; 2255 return; 2256 } 2257 /* Discard frames that are too short. */ 2258 if (len < sizeof (*wh)) { 2259 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n", 2260 __func__, len); 2261 ifp->if_ierrors++; 2262 return; 2263 } 2264 2265 m1 = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE); 2266 if (m1 == NULL) { 2267 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n", 2268 __func__); 2269 ifp->if_ierrors++; 2270 return; 2271 } 2272 bus_dmamap_unload(ring->data_dmat, data->map); 2273 2274 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *), 2275 IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 2276 if (error != 0 && error != EFBIG) { 2277 device_printf(sc->sc_dev, 2278 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 2279 m_freem(m1); 2280 2281 /* Try to reload the old mbuf. */ 2282 error = bus_dmamap_load(ring->data_dmat, data->map, 2283 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 2284 &paddr, BUS_DMA_NOWAIT); 2285 if (error != 0 && error != EFBIG) { 2286 panic("%s: could not load old RX mbuf", __func__); 2287 } 2288 /* Physical address may have changed. */ 2289 ring->desc[ring->cur] = htole32(paddr >> 8); 2290 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map, 2291 BUS_DMASYNC_PREWRITE); 2292 ifp->if_ierrors++; 2293 return; 2294 } 2295 2296 m = data->m; 2297 data->m = m1; 2298 /* Update RX descriptor. */ 2299 ring->desc[ring->cur] = htole32(paddr >> 8); 2300 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2301 BUS_DMASYNC_PREWRITE); 2302 2303 /* Finalize mbuf. */ 2304 m->m_pkthdr.rcvif = ifp; 2305 m->m_data = head; 2306 m->m_pkthdr.len = m->m_len = len; 2307 2308 /* Grab a reference to the source node. */ 2309 wh = mtod(m, struct ieee80211_frame *); 2310 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2311 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN && 2312 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95; 2313 2314 rssi = ops->get_rssi(sc, stat); 2315 2316 if (ieee80211_radiotap_active(ic)) { 2317 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 2318 2319 tap->wr_flags = 0; 2320 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) 2321 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 2322 tap->wr_dbm_antsignal = (int8_t)rssi; 2323 tap->wr_dbm_antnoise = (int8_t)nf; 2324 tap->wr_tsft = stat->tstamp; 2325 switch (stat->rate) { 2326 /* CCK rates. */ 2327 case 10: tap->wr_rate = 2; break; 2328 case 20: tap->wr_rate = 4; break; 2329 case 55: tap->wr_rate = 11; break; 2330 case 110: tap->wr_rate = 22; break; 2331 /* OFDM rates. */ 2332 case 0xd: tap->wr_rate = 12; break; 2333 case 0xf: tap->wr_rate = 18; break; 2334 case 0x5: tap->wr_rate = 24; break; 2335 case 0x7: tap->wr_rate = 36; break; 2336 case 0x9: tap->wr_rate = 48; break; 2337 case 0xb: tap->wr_rate = 72; break; 2338 case 0x1: tap->wr_rate = 96; break; 2339 case 0x3: tap->wr_rate = 108; break; 2340 /* Unknown rate: should not happen. */ 2341 default: tap->wr_rate = 0; 2342 } 2343 } 2344 2345 IWN_UNLOCK(sc); 2346 2347 /* Send the frame to the 802.11 layer. */ 2348 if (ni != NULL) { 2349 (void)ieee80211_input(ni, m, rssi - nf, nf); 2350 /* Node is no longer needed. */ 2351 ieee80211_free_node(ni); 2352 } else 2353 (void)ieee80211_input_all(ic, m, rssi - nf, nf); 2354 2355 IWN_LOCK(sc); 2356 } 2357 2358 #if 0 /* HT */ 2359 /* Process an incoming Compressed BlockAck. */ 2360 static void 2361 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2362 struct iwn_rx_data *data) 2363 { 2364 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1); 2365 struct iwn_tx_ring *txq; 2366 2367 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2368 2369 txq = &sc->txq[letoh16(ba->qid)]; 2370 /* XXX TBD */ 2371 } 2372 #endif 2373 2374 /* 2375 * Process a CALIBRATION_RESULT notification sent by the initialization 2376 * firmware on response to a CMD_CALIB_CONFIG command (5000 only). 2377 */ 2378 static void 2379 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2380 struct iwn_rx_data *data) 2381 { 2382 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1); 2383 int len, idx = -1; 2384 2385 /* Runtime firmware should not send such a notification. */ 2386 if (sc->sc_flags & IWN_FLAG_CALIB_DONE) 2387 return; 2388 2389 len = (le32toh(desc->len) & 0x3fff) - 4; 2390 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2391 2392 switch (calib->code) { 2393 case IWN5000_PHY_CALIB_DC: 2394 if ((sc->sc_flags & IWN_FLAG_INTERNAL_PA) == 0 && 2395 (sc->hw_type == IWN_HW_REV_TYPE_5150 || 2396 sc->hw_type >= IWN_HW_REV_TYPE_6000)) 2397 idx = 0; 2398 break; 2399 case IWN5000_PHY_CALIB_LO: 2400 idx = 1; 2401 break; 2402 case IWN5000_PHY_CALIB_TX_IQ: 2403 idx = 2; 2404 break; 2405 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC: 2406 if (sc->hw_type < IWN_HW_REV_TYPE_6000 && 2407 sc->hw_type != IWN_HW_REV_TYPE_5150) 2408 idx = 3; 2409 break; 2410 case IWN5000_PHY_CALIB_BASE_BAND: 2411 idx = 4; 2412 break; 2413 } 2414 if (idx == -1) /* Ignore other results. */ 2415 return; 2416 2417 /* Save calibration result. */ 2418 if (sc->calibcmd[idx].buf != NULL) 2419 free(sc->calibcmd[idx].buf, M_DEVBUF); 2420 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT); 2421 if (sc->calibcmd[idx].buf == NULL) { 2422 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2423 "not enough memory for calibration result %d\n", 2424 calib->code); 2425 return; 2426 } 2427 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2428 "saving calibration result code=%d len=%d\n", calib->code, len); 2429 sc->calibcmd[idx].len = len; 2430 memcpy(sc->calibcmd[idx].buf, calib, len); 2431 } 2432 2433 /* 2434 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification. 2435 * The latter is sent by the firmware after each received beacon. 2436 */ 2437 static void 2438 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2439 struct iwn_rx_data *data) 2440 { 2441 struct iwn_ops *ops = &sc->ops; 2442 struct ifnet *ifp = sc->sc_ifp; 2443 struct ieee80211com *ic = ifp->if_l2com; 2444 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2445 struct iwn_calib_state *calib = &sc->calib; 2446 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 2447 int temp; 2448 2449 /* Ignore statistics received during a scan. */ 2450 if (vap->iv_state != IEEE80211_S_RUN || 2451 (ic->ic_flags & IEEE80211_F_SCAN)) 2452 return; 2453 2454 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2455 2456 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received statistics, cmd %d\n", 2457 __func__, desc->type); 2458 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */ 2459 2460 /* Test if temperature has changed. */ 2461 if (stats->general.temp != sc->rawtemp) { 2462 /* Convert "raw" temperature to degC. */ 2463 sc->rawtemp = stats->general.temp; 2464 temp = ops->get_temperature(sc); 2465 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n", 2466 __func__, temp); 2467 2468 /* Update TX power if need be (4965AGN only). */ 2469 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 2470 iwn4965_power_calibration(sc, temp); 2471 } 2472 2473 if (desc->type != IWN_BEACON_STATISTICS) 2474 return; /* Reply to a statistics request. */ 2475 2476 sc->noise = iwn_get_noise(&stats->rx.general); 2477 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise); 2478 2479 /* Test that RSSI and noise are present in stats report. */ 2480 if (le32toh(stats->rx.general.flags) != 1) { 2481 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", 2482 "received statistics without RSSI"); 2483 return; 2484 } 2485 2486 if (calib->state == IWN_CALIB_STATE_ASSOC) 2487 iwn_collect_noise(sc, &stats->rx.general); 2488 else if (calib->state == IWN_CALIB_STATE_RUN) 2489 iwn_tune_sensitivity(sc, &stats->rx); 2490 } 2491 2492 /* 2493 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN 2494 * and 5000 adapters have different incompatible TX status formats. 2495 */ 2496 static void 2497 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2498 struct iwn_rx_data *data) 2499 { 2500 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1); 2501 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 2502 2503 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 2504 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n", 2505 __func__, desc->qid, desc->idx, stat->ackfailcnt, 2506 stat->btkillcnt, stat->rate, le16toh(stat->duration), 2507 le32toh(stat->status)); 2508 2509 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2510 iwn_tx_done(sc, desc, stat->ackfailcnt, le32toh(stat->status) & 0xff); 2511 } 2512 2513 static void 2514 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2515 struct iwn_rx_data *data) 2516 { 2517 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1); 2518 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 2519 2520 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 2521 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n", 2522 __func__, desc->qid, desc->idx, stat->ackfailcnt, 2523 stat->btkillcnt, stat->rate, le16toh(stat->duration), 2524 le32toh(stat->status)); 2525 2526 #ifdef notyet 2527 /* Reset TX scheduler slot. */ 2528 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx); 2529 #endif 2530 2531 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 2532 iwn_tx_done(sc, desc, stat->ackfailcnt, le16toh(stat->status) & 0xff); 2533 } 2534 2535 /* 2536 * Adapter-independent backend for TX_DONE firmware notifications. 2537 */ 2538 static void 2539 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt, 2540 uint8_t status) 2541 { 2542 struct ifnet *ifp = sc->sc_ifp; 2543 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 2544 struct iwn_tx_data *data = &ring->data[desc->idx]; 2545 struct mbuf *m; 2546 struct ieee80211_node *ni; 2547 struct ieee80211vap *vap; 2548 2549 KASSERT(data->ni != NULL, ("no node")); 2550 2551 /* Unmap and free mbuf. */ 2552 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 2553 bus_dmamap_unload(ring->data_dmat, data->map); 2554 m = data->m, data->m = NULL; 2555 ni = data->ni, data->ni = NULL; 2556 vap = ni->ni_vap; 2557 2558 if (m->m_flags & M_TXCB) { 2559 /* 2560 * Channels marked for "radar" require traffic to be received 2561 * to unlock before we can transmit. Until traffic is seen 2562 * any attempt to transmit is returned immediately with status 2563 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily 2564 * happen on first authenticate after scanning. To workaround 2565 * this we ignore a failure of this sort in AUTH state so the 2566 * 802.11 layer will fall back to using a timeout to wait for 2567 * the AUTH reply. This allows the firmware time to see 2568 * traffic so a subsequent retry of AUTH succeeds. It's 2569 * unclear why the firmware does not maintain state for 2570 * channels recently visited as this would allow immediate 2571 * use of the channel after a scan (where we see traffic). 2572 */ 2573 if (status == IWN_TX_FAIL_TX_LOCKED && 2574 ni->ni_vap->iv_state == IEEE80211_S_AUTH) 2575 ieee80211_process_callback(ni, m, 0); 2576 else 2577 ieee80211_process_callback(ni, m, 2578 (status & IWN_TX_FAIL) != 0); 2579 } 2580 2581 /* 2582 * Update rate control statistics for the node. 2583 */ 2584 if (status & IWN_TX_FAIL) { 2585 ifp->if_oerrors++; 2586 ieee80211_ratectl_tx_complete(vap, ni, 2587 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL); 2588 } else { 2589 ifp->if_opackets++; 2590 ieee80211_ratectl_tx_complete(vap, ni, 2591 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL); 2592 } 2593 m_freem(m); 2594 ieee80211_free_node(ni); 2595 2596 sc->sc_tx_timer = 0; 2597 if (--ring->queued < IWN_TX_RING_LOMARK) { 2598 sc->qfullmsk &= ~(1 << ring->qid); 2599 if (sc->qfullmsk == 0 && 2600 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) { 2601 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2602 iwn_start_locked(ifp); 2603 } 2604 } 2605 } 2606 2607 /* 2608 * Process a "command done" firmware notification. This is where we wakeup 2609 * processes waiting for a synchronous command completion. 2610 */ 2611 static void 2612 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc) 2613 { 2614 struct iwn_tx_ring *ring = &sc->txq[4]; 2615 struct iwn_tx_data *data; 2616 2617 if ((desc->qid & 0xf) != 4) 2618 return; /* Not a command ack. */ 2619 2620 data = &ring->data[desc->idx]; 2621 2622 /* If the command was mapped in an mbuf, free it. */ 2623 if (data->m != NULL) { 2624 bus_dmamap_sync(ring->data_dmat, data->map, 2625 BUS_DMASYNC_POSTWRITE); 2626 bus_dmamap_unload(ring->data_dmat, data->map); 2627 m_freem(data->m); 2628 data->m = NULL; 2629 } 2630 wakeup(&ring->desc[desc->idx]); 2631 } 2632 2633 /* 2634 * Process an INT_FH_RX or INT_SW_RX interrupt. 2635 */ 2636 static void 2637 iwn_notif_intr(struct iwn_softc *sc) 2638 { 2639 struct iwn_ops *ops = &sc->ops; 2640 struct ifnet *ifp = sc->sc_ifp; 2641 struct ieee80211com *ic = ifp->if_l2com; 2642 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2643 uint16_t hw; 2644 2645 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map, 2646 BUS_DMASYNC_POSTREAD); 2647 2648 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff; 2649 while (sc->rxq.cur != hw) { 2650 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 2651 struct iwn_rx_desc *desc; 2652 2653 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2654 BUS_DMASYNC_POSTREAD); 2655 desc = mtod(data->m, struct iwn_rx_desc *); 2656 2657 DPRINTF(sc, IWN_DEBUG_RECV, 2658 "%s: qid %x idx %d flags %x type %d(%s) len %d\n", 2659 __func__, desc->qid & 0xf, desc->idx, desc->flags, 2660 desc->type, iwn_intr_str(desc->type), 2661 le16toh(desc->len)); 2662 2663 if (!(desc->qid & 0x80)) /* Reply to a command. */ 2664 iwn_cmd_done(sc, desc); 2665 2666 switch (desc->type) { 2667 case IWN_RX_PHY: 2668 iwn_rx_phy(sc, desc, data); 2669 break; 2670 2671 case IWN_RX_DONE: /* 4965AGN only. */ 2672 case IWN_MPDU_RX_DONE: 2673 /* An 802.11 frame has been received. */ 2674 iwn_rx_done(sc, desc, data); 2675 break; 2676 2677 #if 0 /* HT */ 2678 case IWN_RX_COMPRESSED_BA: 2679 /* A Compressed BlockAck has been received. */ 2680 iwn_rx_compressed_ba(sc, desc, data); 2681 break; 2682 #endif 2683 2684 case IWN_TX_DONE: 2685 /* An 802.11 frame has been transmitted. */ 2686 ops->tx_done(sc, desc, data); 2687 break; 2688 2689 case IWN_RX_STATISTICS: 2690 case IWN_BEACON_STATISTICS: 2691 iwn_rx_statistics(sc, desc, data); 2692 break; 2693 2694 case IWN_BEACON_MISSED: 2695 { 2696 struct iwn_beacon_missed *miss = 2697 (struct iwn_beacon_missed *)(desc + 1); 2698 int misses; 2699 2700 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2701 BUS_DMASYNC_POSTREAD); 2702 misses = le32toh(miss->consecutive); 2703 2704 DPRINTF(sc, IWN_DEBUG_STATE, 2705 "%s: beacons missed %d/%d\n", __func__, 2706 misses, le32toh(miss->total)); 2707 /* 2708 * If more than 5 consecutive beacons are missed, 2709 * reinitialize the sensitivity state machine. 2710 */ 2711 if (vap->iv_state == IEEE80211_S_RUN && 2712 (ic->ic_flags & IEEE80211_F_SCAN) == 0) { 2713 if (misses > 5) 2714 (void)iwn_init_sensitivity(sc); 2715 if (misses >= vap->iv_bmissthreshold) { 2716 IWN_UNLOCK(sc); 2717 ieee80211_beacon_miss(ic); 2718 IWN_LOCK(sc); 2719 } 2720 } 2721 break; 2722 } 2723 case IWN_UC_READY: 2724 { 2725 struct iwn_ucode_info *uc = 2726 (struct iwn_ucode_info *)(desc + 1); 2727 2728 /* The microcontroller is ready. */ 2729 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2730 BUS_DMASYNC_POSTREAD); 2731 DPRINTF(sc, IWN_DEBUG_RESET, 2732 "microcode alive notification version=%d.%d " 2733 "subtype=%x alive=%x\n", uc->major, uc->minor, 2734 uc->subtype, le32toh(uc->valid)); 2735 2736 if (le32toh(uc->valid) != 1) { 2737 device_printf(sc->sc_dev, 2738 "microcontroller initialization failed"); 2739 break; 2740 } 2741 if (uc->subtype == IWN_UCODE_INIT) { 2742 /* Save microcontroller report. */ 2743 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 2744 } 2745 /* Save the address of the error log in SRAM. */ 2746 sc->errptr = le32toh(uc->errptr); 2747 break; 2748 } 2749 case IWN_STATE_CHANGED: 2750 { 2751 uint32_t *status = (uint32_t *)(desc + 1); 2752 2753 /* 2754 * State change allows hardware switch change to be 2755 * noted. However, we handle this in iwn_intr as we 2756 * get both the enable/disble intr. 2757 */ 2758 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2759 BUS_DMASYNC_POSTREAD); 2760 DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n", 2761 le32toh(*status)); 2762 break; 2763 } 2764 case IWN_START_SCAN: 2765 { 2766 struct iwn_start_scan *scan = 2767 (struct iwn_start_scan *)(desc + 1); 2768 2769 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2770 BUS_DMASYNC_POSTREAD); 2771 DPRINTF(sc, IWN_DEBUG_ANY, 2772 "%s: scanning channel %d status %x\n", 2773 __func__, scan->chan, le32toh(scan->status)); 2774 break; 2775 } 2776 case IWN_STOP_SCAN: 2777 { 2778 struct iwn_stop_scan *scan = 2779 (struct iwn_stop_scan *)(desc + 1); 2780 2781 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2782 BUS_DMASYNC_POSTREAD); 2783 DPRINTF(sc, IWN_DEBUG_STATE, 2784 "scan finished nchan=%d status=%d chan=%d\n", 2785 scan->nchan, scan->status, scan->chan); 2786 2787 IWN_UNLOCK(sc); 2788 ieee80211_scan_next(vap); 2789 IWN_LOCK(sc); 2790 break; 2791 } 2792 case IWN5000_CALIBRATION_RESULT: 2793 iwn5000_rx_calib_results(sc, desc, data); 2794 break; 2795 2796 case IWN5000_CALIBRATION_DONE: 2797 sc->sc_flags |= IWN_FLAG_CALIB_DONE; 2798 wakeup(sc); 2799 break; 2800 } 2801 2802 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 2803 } 2804 2805 /* Tell the firmware what we have processed. */ 2806 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 2807 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7); 2808 } 2809 2810 /* 2811 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 2812 * from power-down sleep mode. 2813 */ 2814 static void 2815 iwn_wakeup_intr(struct iwn_softc *sc) 2816 { 2817 int qid; 2818 2819 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n", 2820 __func__); 2821 2822 /* Wakeup RX and TX rings. */ 2823 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7); 2824 for (qid = 0; qid < sc->ntxqs; qid++) { 2825 struct iwn_tx_ring *ring = &sc->txq[qid]; 2826 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur); 2827 } 2828 } 2829 2830 static void 2831 iwn_rftoggle_intr(struct iwn_softc *sc) 2832 { 2833 struct ifnet *ifp = sc->sc_ifp; 2834 struct ieee80211com *ic = ifp->if_l2com; 2835 uint32_t tmp = IWN_READ(sc, IWN_GP_CNTRL); 2836 2837 IWN_LOCK_ASSERT(sc); 2838 2839 device_printf(sc->sc_dev, "RF switch: radio %s\n", 2840 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled"); 2841 if (tmp & IWN_GP_CNTRL_RFKILL) 2842 ieee80211_runtask(ic, &sc->sc_radioon_task); 2843 else 2844 ieee80211_runtask(ic, &sc->sc_radiooff_task); 2845 } 2846 2847 /* 2848 * Dump the error log of the firmware when a firmware panic occurs. Although 2849 * we can't debug the firmware because it is neither open source nor free, it 2850 * can help us to identify certain classes of problems. 2851 */ 2852 static void 2853 iwn_fatal_intr(struct iwn_softc *sc) 2854 { 2855 struct iwn_fw_dump dump; 2856 int i; 2857 2858 IWN_LOCK_ASSERT(sc); 2859 2860 /* Force a complete recalibration on next init. */ 2861 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE; 2862 2863 /* Check that the error log address is valid. */ 2864 if (sc->errptr < IWN_FW_DATA_BASE || 2865 sc->errptr + sizeof (dump) > 2866 IWN_FW_DATA_BASE + sc->fw_data_maxsz) { 2867 printf("%s: bad firmware error log address 0x%08x\n", __func__, 2868 sc->errptr); 2869 return; 2870 } 2871 if (iwn_nic_lock(sc) != 0) { 2872 printf("%s: could not read firmware error log\n", __func__); 2873 return; 2874 } 2875 /* Read firmware error log from SRAM. */ 2876 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump, 2877 sizeof (dump) / sizeof (uint32_t)); 2878 iwn_nic_unlock(sc); 2879 2880 if (dump.valid == 0) { 2881 printf("%s: firmware error log is empty\n", __func__); 2882 return; 2883 } 2884 printf("firmware error log:\n"); 2885 printf(" error type = \"%s\" (0x%08X)\n", 2886 (dump.id < nitems(iwn_fw_errmsg)) ? 2887 iwn_fw_errmsg[dump.id] : "UNKNOWN", 2888 dump.id); 2889 printf(" program counter = 0x%08X\n", dump.pc); 2890 printf(" source line = 0x%08X\n", dump.src_line); 2891 printf(" error data = 0x%08X%08X\n", 2892 dump.error_data[0], dump.error_data[1]); 2893 printf(" branch link = 0x%08X%08X\n", 2894 dump.branch_link[0], dump.branch_link[1]); 2895 printf(" interrupt link = 0x%08X%08X\n", 2896 dump.interrupt_link[0], dump.interrupt_link[1]); 2897 printf(" time = %u\n", dump.time[0]); 2898 2899 /* Dump driver status (TX and RX rings) while we're here. */ 2900 printf("driver status:\n"); 2901 for (i = 0; i < sc->ntxqs; i++) { 2902 struct iwn_tx_ring *ring = &sc->txq[i]; 2903 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 2904 i, ring->qid, ring->cur, ring->queued); 2905 } 2906 printf(" rx ring: cur=%d\n", sc->rxq.cur); 2907 } 2908 2909 static void 2910 iwn_intr(void *arg) 2911 { 2912 struct iwn_softc *sc = arg; 2913 struct ifnet *ifp = sc->sc_ifp; 2914 uint32_t r1, r2, tmp; 2915 2916 IWN_LOCK(sc); 2917 2918 /* Disable interrupts. */ 2919 IWN_WRITE(sc, IWN_INT_MASK, 0); 2920 2921 /* Read interrupts from ICT (fast) or from registers (slow). */ 2922 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 2923 tmp = 0; 2924 while (sc->ict[sc->ict_cur] != 0) { 2925 tmp |= sc->ict[sc->ict_cur]; 2926 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */ 2927 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT; 2928 } 2929 tmp = le32toh(tmp); 2930 if (tmp == 0xffffffff) /* Shouldn't happen. */ 2931 tmp = 0; 2932 else if (tmp & 0xc0000) /* Workaround a HW bug. */ 2933 tmp |= 0x8000; 2934 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff); 2935 r2 = 0; /* Unused. */ 2936 } else { 2937 r1 = IWN_READ(sc, IWN_INT); 2938 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) 2939 return; /* Hardware gone! */ 2940 r2 = IWN_READ(sc, IWN_FH_INT); 2941 } 2942 2943 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=%x reg2=%x\n", r1, r2); 2944 2945 if (r1 == 0 && r2 == 0) 2946 goto done; /* Interrupt not for us. */ 2947 2948 /* Acknowledge interrupts. */ 2949 IWN_WRITE(sc, IWN_INT, r1); 2950 if (!(sc->sc_flags & IWN_FLAG_USE_ICT)) 2951 IWN_WRITE(sc, IWN_FH_INT, r2); 2952 2953 if (r1 & IWN_INT_RF_TOGGLED) { 2954 iwn_rftoggle_intr(sc); 2955 goto done; 2956 } 2957 if (r1 & IWN_INT_CT_REACHED) { 2958 device_printf(sc->sc_dev, "%s: critical temperature reached!\n", 2959 __func__); 2960 } 2961 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) { 2962 device_printf(sc->sc_dev, "%s: fatal firmware error\n", 2963 __func__); 2964 /* Dump firmware error log and stop. */ 2965 iwn_fatal_intr(sc); 2966 ifp->if_flags &= ~IFF_UP; 2967 iwn_stop_locked(sc); 2968 goto done; 2969 } 2970 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) || 2971 (r2 & IWN_FH_INT_RX)) { 2972 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 2973 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) 2974 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX); 2975 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 2976 IWN_INT_PERIODIC_DIS); 2977 iwn_notif_intr(sc); 2978 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) { 2979 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 2980 IWN_INT_PERIODIC_ENA); 2981 } 2982 } else 2983 iwn_notif_intr(sc); 2984 } 2985 2986 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) { 2987 if (sc->sc_flags & IWN_FLAG_USE_ICT) 2988 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX); 2989 wakeup(sc); /* FH DMA transfer completed. */ 2990 } 2991 2992 if (r1 & IWN_INT_ALIVE) 2993 wakeup(sc); /* Firmware is alive. */ 2994 2995 if (r1 & IWN_INT_WAKEUP) 2996 iwn_wakeup_intr(sc); 2997 2998 done: 2999 /* Re-enable interrupts. */ 3000 if (ifp->if_flags & IFF_UP) 3001 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 3002 3003 IWN_UNLOCK(sc); 3004 } 3005 3006 /* 3007 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and 3008 * 5000 adapters use a slightly different format). 3009 */ 3010 static void 3011 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 3012 uint16_t len) 3013 { 3014 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx]; 3015 3016 *w = htole16(len + 8); 3017 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3018 BUS_DMASYNC_PREWRITE); 3019 if (idx < IWN_SCHED_WINSZ) { 3020 *(w + IWN_TX_RING_COUNT) = *w; 3021 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3022 BUS_DMASYNC_PREWRITE); 3023 } 3024 } 3025 3026 static void 3027 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 3028 uint16_t len) 3029 { 3030 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 3031 3032 *w = htole16(id << 12 | (len + 8)); 3033 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3034 BUS_DMASYNC_PREWRITE); 3035 if (idx < IWN_SCHED_WINSZ) { 3036 *(w + IWN_TX_RING_COUNT) = *w; 3037 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3038 BUS_DMASYNC_PREWRITE); 3039 } 3040 } 3041 3042 #ifdef notyet 3043 static void 3044 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx) 3045 { 3046 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 3047 3048 *w = (*w & htole16(0xf000)) | htole16(1); 3049 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3050 BUS_DMASYNC_PREWRITE); 3051 if (idx < IWN_SCHED_WINSZ) { 3052 *(w + IWN_TX_RING_COUNT) = *w; 3053 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 3054 BUS_DMASYNC_PREWRITE); 3055 } 3056 } 3057 #endif 3058 3059 static uint8_t 3060 iwn_plcp_signal(int rate) { 3061 int i; 3062 3063 for (i = 0; i < IWN_RIDX_MAX + 1; i++) { 3064 if ((rate & IEEE80211_RATE_VAL) == iwn_rates[i].rate) 3065 return i; 3066 } 3067 3068 return 0; 3069 } 3070 3071 static int 3072 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 3073 { 3074 const struct ieee80211_txparam *tp; 3075 struct ieee80211vap *vap = ni->ni_vap; 3076 struct ieee80211com *ic = ni->ni_ic; 3077 struct iwn_node *wn = (void *)ni; 3078 struct iwn_tx_ring *ring; 3079 struct iwn_tx_desc *desc; 3080 struct iwn_tx_data *data; 3081 struct iwn_tx_cmd *cmd; 3082 struct iwn_cmd_data *tx; 3083 const struct iwn_rate *rinfo; 3084 struct ieee80211_frame *wh; 3085 struct ieee80211_key *k = NULL; 3086 struct mbuf *m1; 3087 uint32_t flags; 3088 uint16_t qos; 3089 u_int hdrlen; 3090 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 3091 uint8_t tid, ridx, txant, type; 3092 int ac, i, totlen, error, pad, nsegs = 0, rate; 3093 3094 IWN_LOCK_ASSERT(sc); 3095 3096 wh = mtod(m, struct ieee80211_frame *); 3097 hdrlen = ieee80211_anyhdrsize(wh); 3098 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3099 3100 /* Select EDCA Access Category and TX ring for this frame. */ 3101 if (IEEE80211_QOS_HAS_SEQ(wh)) { 3102 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 3103 tid = qos & IEEE80211_QOS_TID; 3104 } else { 3105 qos = 0; 3106 tid = 0; 3107 } 3108 ac = M_WME_GETAC(m); 3109 3110 ring = &sc->txq[ac]; 3111 desc = &ring->desc[ring->cur]; 3112 data = &ring->data[ring->cur]; 3113 3114 /* Choose a TX rate index. */ 3115 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 3116 if (type == IEEE80211_FC0_TYPE_MGT) 3117 rate = tp->mgmtrate; 3118 else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 3119 rate = tp->mcastrate; 3120 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 3121 rate = tp->ucastrate; 3122 else { 3123 /* XXX pass pktlen */ 3124 (void) ieee80211_ratectl_rate(ni, NULL, 0); 3125 rate = ni->ni_txrate; 3126 } 3127 ridx = iwn_plcp_signal(rate); 3128 rinfo = &iwn_rates[ridx]; 3129 3130 /* Encrypt the frame if need be. */ 3131 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 3132 /* Retrieve key for TX. */ 3133 k = ieee80211_crypto_encap(ni, m); 3134 if (k == NULL) { 3135 m_freem(m); 3136 return ENOBUFS; 3137 } 3138 /* 802.11 header may have moved. */ 3139 wh = mtod(m, struct ieee80211_frame *); 3140 } 3141 totlen = m->m_pkthdr.len; 3142 3143 if (ieee80211_radiotap_active_vap(vap)) { 3144 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 3145 3146 tap->wt_flags = 0; 3147 tap->wt_rate = rinfo->rate; 3148 if (k != NULL) 3149 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3150 3151 ieee80211_radiotap_tx(vap, m); 3152 } 3153 3154 /* Prepare TX firmware command. */ 3155 cmd = &ring->cmd[ring->cur]; 3156 cmd->code = IWN_CMD_TX_DATA; 3157 cmd->flags = 0; 3158 cmd->qid = ring->qid; 3159 cmd->idx = ring->cur; 3160 3161 tx = (struct iwn_cmd_data *)cmd->data; 3162 /* NB: No need to clear tx, all fields are reinitialized here. */ 3163 tx->scratch = 0; /* clear "scratch" area */ 3164 3165 flags = 0; 3166 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3167 /* Unicast frame, check if an ACK is expected. */ 3168 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 3169 IEEE80211_QOS_ACKPOLICY_NOACK) 3170 flags |= IWN_TX_NEED_ACK; 3171 } 3172 if ((wh->i_fc[0] & 3173 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 3174 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR)) 3175 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */ 3176 3177 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 3178 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */ 3179 3180 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 3181 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3182 /* NB: Group frames are sent using CCK in 802.11b/g. */ 3183 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 3184 flags |= IWN_TX_NEED_RTS; 3185 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 3186 ridx >= IWN_RIDX_OFDM6) { 3187 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 3188 flags |= IWN_TX_NEED_CTS; 3189 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 3190 flags |= IWN_TX_NEED_RTS; 3191 } 3192 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) { 3193 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3194 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3195 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS); 3196 flags |= IWN_TX_NEED_PROTECTION; 3197 } else 3198 flags |= IWN_TX_FULL_TXOP; 3199 } 3200 } 3201 3202 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 3203 type != IEEE80211_FC0_TYPE_DATA) 3204 tx->id = sc->broadcast_id; 3205 else 3206 tx->id = wn->id; 3207 3208 if (type == IEEE80211_FC0_TYPE_MGT) { 3209 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3210 3211 /* Tell HW to set timestamp in probe responses. */ 3212 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 3213 flags |= IWN_TX_INSERT_TSTAMP; 3214 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 3215 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 3216 tx->timeout = htole16(3); 3217 else 3218 tx->timeout = htole16(2); 3219 } else 3220 tx->timeout = htole16(0); 3221 3222 if (hdrlen & 3) { 3223 /* First segment length must be a multiple of 4. */ 3224 flags |= IWN_TX_NEED_PADDING; 3225 pad = 4 - (hdrlen & 3); 3226 } else 3227 pad = 0; 3228 3229 tx->len = htole16(totlen); 3230 tx->tid = tid; 3231 tx->rts_ntries = 60; 3232 tx->data_ntries = 15; 3233 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3234 tx->plcp = rinfo->plcp; 3235 tx->rflags = rinfo->flags; 3236 if (tx->id == sc->broadcast_id) { 3237 /* Group or management frame. */ 3238 tx->linkq = 0; 3239 /* XXX Alternate between antenna A and B? */ 3240 txant = IWN_LSB(sc->txchainmask); 3241 tx->rflags |= IWN_RFLAG_ANT(txant); 3242 } else { 3243 tx->linkq = ni->ni_rates.rs_nrates - ridx - 1; 3244 flags |= IWN_TX_LINKQ; /* enable MRR */ 3245 } 3246 /* Set physical address of "scratch area". */ 3247 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 3248 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 3249 3250 /* Copy 802.11 header in TX command. */ 3251 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 3252 3253 /* Trim 802.11 header. */ 3254 m_adj(m, hdrlen); 3255 tx->security = 0; 3256 tx->flags = htole32(flags); 3257 3258 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 3259 &nsegs, BUS_DMA_NOWAIT); 3260 if (error != 0) { 3261 if (error != EFBIG) { 3262 device_printf(sc->sc_dev, 3263 "%s: can't map mbuf (error %d)\n", __func__, error); 3264 m_freem(m); 3265 return error; 3266 } 3267 /* Too many DMA segments, linearize mbuf. */ 3268 m1 = m_collapse(m, M_DONTWAIT, IWN_MAX_SCATTER); 3269 if (m1 == NULL) { 3270 device_printf(sc->sc_dev, 3271 "%s: could not defrag mbuf\n", __func__); 3272 m_freem(m); 3273 return ENOBUFS; 3274 } 3275 m = m1; 3276 3277 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 3278 segs, &nsegs, BUS_DMA_NOWAIT); 3279 if (error != 0) { 3280 device_printf(sc->sc_dev, 3281 "%s: can't map mbuf (error %d)\n", __func__, error); 3282 m_freem(m); 3283 return error; 3284 } 3285 } 3286 3287 data->m = m; 3288 data->ni = ni; 3289 3290 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 3291 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs); 3292 3293 /* Fill TX descriptor. */ 3294 desc->nsegs = 1; 3295 if (m->m_len != 0) 3296 desc->nsegs += nsegs; 3297 /* First DMA segment is used by the TX command. */ 3298 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 3299 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 3300 (4 + sizeof (*tx) + hdrlen + pad) << 4); 3301 /* Other DMA segments are for data payload. */ 3302 seg = &segs[0]; 3303 for (i = 1; i <= nsegs; i++) { 3304 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 3305 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 3306 seg->ds_len << 4); 3307 seg++; 3308 } 3309 3310 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 3311 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3312 BUS_DMASYNC_PREWRITE); 3313 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3314 BUS_DMASYNC_PREWRITE); 3315 3316 #ifdef notyet 3317 /* Update TX scheduler. */ 3318 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 3319 #endif 3320 3321 /* Kick TX ring. */ 3322 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3323 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3324 3325 /* Mark TX ring as full if we reach a certain threshold. */ 3326 if (++ring->queued > IWN_TX_RING_HIMARK) 3327 sc->qfullmsk |= 1 << ring->qid; 3328 3329 return 0; 3330 } 3331 3332 static int 3333 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m, 3334 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 3335 { 3336 const struct iwn_rate *rinfo; 3337 struct ifnet *ifp = sc->sc_ifp; 3338 struct ieee80211vap *vap = ni->ni_vap; 3339 struct ieee80211com *ic = ifp->if_l2com; 3340 struct iwn_tx_cmd *cmd; 3341 struct iwn_cmd_data *tx; 3342 struct ieee80211_frame *wh; 3343 struct iwn_tx_ring *ring; 3344 struct iwn_tx_desc *desc; 3345 struct iwn_tx_data *data; 3346 struct mbuf *m1; 3347 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 3348 uint32_t flags; 3349 u_int hdrlen; 3350 int ac, totlen, error, pad, nsegs = 0, i, rate; 3351 uint8_t ridx, type, txant; 3352 3353 IWN_LOCK_ASSERT(sc); 3354 3355 wh = mtod(m, struct ieee80211_frame *); 3356 hdrlen = ieee80211_anyhdrsize(wh); 3357 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3358 3359 ac = params->ibp_pri & 3; 3360 3361 ring = &sc->txq[ac]; 3362 desc = &ring->desc[ring->cur]; 3363 data = &ring->data[ring->cur]; 3364 3365 /* Choose a TX rate index. */ 3366 rate = params->ibp_rate0; 3367 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 3368 /* XXX fall back to mcast/mgmt rate? */ 3369 m_freem(m); 3370 return EINVAL; 3371 } 3372 ridx = iwn_plcp_signal(rate); 3373 rinfo = &iwn_rates[ridx]; 3374 3375 totlen = m->m_pkthdr.len; 3376 3377 /* Prepare TX firmware command. */ 3378 cmd = &ring->cmd[ring->cur]; 3379 cmd->code = IWN_CMD_TX_DATA; 3380 cmd->flags = 0; 3381 cmd->qid = ring->qid; 3382 cmd->idx = ring->cur; 3383 3384 tx = (struct iwn_cmd_data *)cmd->data; 3385 /* NB: No need to clear tx, all fields are reinitialized here. */ 3386 tx->scratch = 0; /* clear "scratch" area */ 3387 3388 flags = 0; 3389 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 3390 flags |= IWN_TX_NEED_ACK; 3391 if (params->ibp_flags & IEEE80211_BPF_RTS) { 3392 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3393 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3394 flags &= ~IWN_TX_NEED_RTS; 3395 flags |= IWN_TX_NEED_PROTECTION; 3396 } else 3397 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 3398 } 3399 if (params->ibp_flags & IEEE80211_BPF_CTS) { 3400 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3401 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3402 flags &= ~IWN_TX_NEED_CTS; 3403 flags |= IWN_TX_NEED_PROTECTION; 3404 } else 3405 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 3406 } 3407 if (type == IEEE80211_FC0_TYPE_MGT) { 3408 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3409 3410 /* Tell HW to set timestamp in probe responses. */ 3411 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 3412 flags |= IWN_TX_INSERT_TSTAMP; 3413 3414 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 3415 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 3416 tx->timeout = htole16(3); 3417 else 3418 tx->timeout = htole16(2); 3419 } else 3420 tx->timeout = htole16(0); 3421 3422 if (hdrlen & 3) { 3423 /* First segment length must be a multiple of 4. */ 3424 flags |= IWN_TX_NEED_PADDING; 3425 pad = 4 - (hdrlen & 3); 3426 } else 3427 pad = 0; 3428 3429 if (ieee80211_radiotap_active_vap(vap)) { 3430 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 3431 3432 tap->wt_flags = 0; 3433 tap->wt_rate = rate; 3434 3435 ieee80211_radiotap_tx(vap, m); 3436 } 3437 3438 tx->len = htole16(totlen); 3439 tx->tid = 0; 3440 tx->id = sc->broadcast_id; 3441 tx->rts_ntries = params->ibp_try1; 3442 tx->data_ntries = params->ibp_try0; 3443 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3444 tx->plcp = rinfo->plcp; 3445 tx->rflags = rinfo->flags; 3446 /* Group or management frame. */ 3447 tx->linkq = 0; 3448 txant = IWN_LSB(sc->txchainmask); 3449 tx->rflags |= IWN_RFLAG_ANT(txant); 3450 /* Set physical address of "scratch area". */ 3451 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 3452 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 3453 3454 /* Copy 802.11 header in TX command. */ 3455 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 3456 3457 /* Trim 802.11 header. */ 3458 m_adj(m, hdrlen); 3459 tx->security = 0; 3460 tx->flags = htole32(flags); 3461 3462 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 3463 &nsegs, BUS_DMA_NOWAIT); 3464 if (error != 0) { 3465 if (error != EFBIG) { 3466 device_printf(sc->sc_dev, 3467 "%s: can't map mbuf (error %d)\n", __func__, error); 3468 m_freem(m); 3469 return error; 3470 } 3471 /* Too many DMA segments, linearize mbuf. */ 3472 m1 = m_collapse(m, M_DONTWAIT, IWN_MAX_SCATTER); 3473 if (m1 == NULL) { 3474 device_printf(sc->sc_dev, 3475 "%s: could not defrag mbuf\n", __func__); 3476 m_freem(m); 3477 return ENOBUFS; 3478 } 3479 m = m1; 3480 3481 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 3482 segs, &nsegs, BUS_DMA_NOWAIT); 3483 if (error != 0) { 3484 device_printf(sc->sc_dev, 3485 "%s: can't map mbuf (error %d)\n", __func__, error); 3486 m_freem(m); 3487 return error; 3488 } 3489 } 3490 3491 data->m = m; 3492 data->ni = ni; 3493 3494 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 3495 __func__, ring->qid, ring->cur, m->m_pkthdr.len, nsegs); 3496 3497 /* Fill TX descriptor. */ 3498 desc->nsegs = 1; 3499 if (m->m_len != 0) 3500 desc->nsegs += nsegs; 3501 /* First DMA segment is used by the TX command. */ 3502 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 3503 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 3504 (4 + sizeof (*tx) + hdrlen + pad) << 4); 3505 /* Other DMA segments are for data payload. */ 3506 seg = &segs[0]; 3507 for (i = 1; i <= nsegs; i++) { 3508 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 3509 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 3510 seg->ds_len << 4); 3511 seg++; 3512 } 3513 3514 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 3515 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3516 BUS_DMASYNC_PREWRITE); 3517 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3518 BUS_DMASYNC_PREWRITE); 3519 3520 #ifdef notyet 3521 /* Update TX scheduler. */ 3522 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 3523 #endif 3524 3525 /* Kick TX ring. */ 3526 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3527 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3528 3529 /* Mark TX ring as full if we reach a certain threshold. */ 3530 if (++ring->queued > IWN_TX_RING_HIMARK) 3531 sc->qfullmsk |= 1 << ring->qid; 3532 3533 return 0; 3534 } 3535 3536 static int 3537 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3538 const struct ieee80211_bpf_params *params) 3539 { 3540 struct ieee80211com *ic = ni->ni_ic; 3541 struct ifnet *ifp = ic->ic_ifp; 3542 struct iwn_softc *sc = ifp->if_softc; 3543 int error = 0; 3544 3545 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 3546 ieee80211_free_node(ni); 3547 m_freem(m); 3548 return ENETDOWN; 3549 } 3550 3551 IWN_LOCK(sc); 3552 if (params == NULL) { 3553 /* 3554 * Legacy path; interpret frame contents to decide 3555 * precisely how to send the frame. 3556 */ 3557 error = iwn_tx_data(sc, m, ni); 3558 } else { 3559 /* 3560 * Caller supplied explicit parameters to use in 3561 * sending the frame. 3562 */ 3563 error = iwn_tx_data_raw(sc, m, ni, params); 3564 } 3565 if (error != 0) { 3566 /* NB: m is reclaimed on tx failure */ 3567 ieee80211_free_node(ni); 3568 ifp->if_oerrors++; 3569 } 3570 sc->sc_tx_timer = 5; 3571 3572 IWN_UNLOCK(sc); 3573 return error; 3574 } 3575 3576 static void 3577 iwn_start(struct ifnet *ifp) 3578 { 3579 struct iwn_softc *sc = ifp->if_softc; 3580 3581 IWN_LOCK(sc); 3582 iwn_start_locked(ifp); 3583 IWN_UNLOCK(sc); 3584 } 3585 3586 static void 3587 iwn_start_locked(struct ifnet *ifp) 3588 { 3589 struct iwn_softc *sc = ifp->if_softc; 3590 struct ieee80211_node *ni; 3591 struct mbuf *m; 3592 3593 IWN_LOCK_ASSERT(sc); 3594 3595 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || 3596 (ifp->if_drv_flags & IFF_DRV_OACTIVE)) 3597 return; 3598 3599 for (;;) { 3600 if (sc->qfullmsk != 0) { 3601 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 3602 break; 3603 } 3604 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 3605 if (m == NULL) 3606 break; 3607 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3608 if (iwn_tx_data(sc, m, ni) != 0) { 3609 ieee80211_free_node(ni); 3610 ifp->if_oerrors++; 3611 continue; 3612 } 3613 sc->sc_tx_timer = 5; 3614 } 3615 } 3616 3617 static void 3618 iwn_watchdog(void *arg) 3619 { 3620 struct iwn_softc *sc = arg; 3621 struct ifnet *ifp = sc->sc_ifp; 3622 struct ieee80211com *ic = ifp->if_l2com; 3623 3624 IWN_LOCK_ASSERT(sc); 3625 3626 KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running")); 3627 3628 if (sc->sc_tx_timer > 0) { 3629 if (--sc->sc_tx_timer == 0) { 3630 if_printf(ifp, "device timeout\n"); 3631 ieee80211_runtask(ic, &sc->sc_reinit_task); 3632 return; 3633 } 3634 } 3635 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc); 3636 } 3637 3638 static int 3639 iwn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 3640 { 3641 struct iwn_softc *sc = ifp->if_softc; 3642 struct ieee80211com *ic = ifp->if_l2com; 3643 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3644 struct ifreq *ifr = (struct ifreq *) data; 3645 int error = 0, startall = 0, stop = 0; 3646 3647 switch (cmd) { 3648 case SIOCGIFADDR: 3649 error = ether_ioctl(ifp, cmd, data); 3650 break; 3651 case SIOCSIFFLAGS: 3652 IWN_LOCK(sc); 3653 if (ifp->if_flags & IFF_UP) { 3654 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 3655 iwn_init_locked(sc); 3656 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL) 3657 startall = 1; 3658 else 3659 stop = 1; 3660 } 3661 } else { 3662 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3663 iwn_stop_locked(sc); 3664 } 3665 IWN_UNLOCK(sc); 3666 if (startall) 3667 ieee80211_start_all(ic); 3668 else if (vap != NULL && stop) 3669 ieee80211_stop(vap); 3670 break; 3671 case SIOCGIFMEDIA: 3672 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 3673 break; 3674 default: 3675 error = EINVAL; 3676 break; 3677 } 3678 return error; 3679 } 3680 3681 /* 3682 * Send a command to the firmware. 3683 */ 3684 static int 3685 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 3686 { 3687 struct iwn_tx_ring *ring = &sc->txq[4]; 3688 struct iwn_tx_desc *desc; 3689 struct iwn_tx_data *data; 3690 struct iwn_tx_cmd *cmd; 3691 struct mbuf *m; 3692 bus_addr_t paddr; 3693 int totlen, error; 3694 3695 IWN_LOCK_ASSERT(sc); 3696 3697 desc = &ring->desc[ring->cur]; 3698 data = &ring->data[ring->cur]; 3699 totlen = 4 + size; 3700 3701 if (size > sizeof cmd->data) { 3702 /* Command is too large to fit in a descriptor. */ 3703 if (totlen > MCLBYTES) 3704 return EINVAL; 3705 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 3706 if (m == NULL) 3707 return ENOMEM; 3708 cmd = mtod(m, struct iwn_tx_cmd *); 3709 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, 3710 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 3711 if (error != 0) { 3712 m_freem(m); 3713 return error; 3714 } 3715 data->m = m; 3716 } else { 3717 cmd = &ring->cmd[ring->cur]; 3718 paddr = data->cmd_paddr; 3719 } 3720 3721 cmd->code = code; 3722 cmd->flags = 0; 3723 cmd->qid = ring->qid; 3724 cmd->idx = ring->cur; 3725 memcpy(cmd->data, buf, size); 3726 3727 desc->nsegs = 1; 3728 desc->segs[0].addr = htole32(IWN_LOADDR(paddr)); 3729 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4); 3730 3731 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n", 3732 __func__, iwn_intr_str(cmd->code), cmd->code, 3733 cmd->flags, cmd->qid, cmd->idx); 3734 3735 if (size > sizeof cmd->data) { 3736 bus_dmamap_sync(ring->data_dmat, data->map, 3737 BUS_DMASYNC_PREWRITE); 3738 } else { 3739 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3740 BUS_DMASYNC_PREWRITE); 3741 } 3742 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3743 BUS_DMASYNC_PREWRITE); 3744 3745 #ifdef notyet 3746 /* Update TX scheduler. */ 3747 ops->update_sched(sc, ring->qid, ring->cur, 0, 0); 3748 #endif 3749 3750 /* Kick command ring. */ 3751 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3752 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3753 3754 return async ? 0 : msleep(desc, &sc->sc_mtx, PCATCH, "iwncmd", hz); 3755 } 3756 3757 static int 3758 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 3759 { 3760 struct iwn4965_node_info hnode; 3761 caddr_t src, dst; 3762 3763 /* 3764 * We use the node structure for 5000 Series internally (it is 3765 * a superset of the one for 4965AGN). We thus copy the common 3766 * fields before sending the command. 3767 */ 3768 src = (caddr_t)node; 3769 dst = (caddr_t)&hnode; 3770 memcpy(dst, src, 48); 3771 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */ 3772 memcpy(dst + 48, src + 72, 20); 3773 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async); 3774 } 3775 3776 static int 3777 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 3778 { 3779 /* Direct mapping. */ 3780 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async); 3781 } 3782 3783 static int 3784 iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni) 3785 { 3786 struct iwn_node *wn = (void *)ni; 3787 struct ieee80211_rateset *rs = &ni->ni_rates; 3788 struct iwn_cmd_link_quality linkq; 3789 const struct iwn_rate *rinfo; 3790 uint8_t txant; 3791 int i, txrate; 3792 3793 /* Use the first valid TX antenna. */ 3794 txant = IWN_LSB(sc->txchainmask); 3795 3796 memset(&linkq, 0, sizeof linkq); 3797 linkq.id = wn->id; 3798 linkq.antmsk_1stream = txant; 3799 linkq.antmsk_2stream = IWN_ANT_AB; 3800 linkq.ampdu_max = 31; 3801 linkq.ampdu_threshold = 3; 3802 linkq.ampdu_limit = htole16(4000); /* 4ms */ 3803 3804 /* Start at highest available bit-rate. */ 3805 txrate = rs->rs_nrates - 1; 3806 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) { 3807 rinfo = &iwn_rates[wn->ridx[txrate]]; 3808 linkq.retry[i].plcp = rinfo->plcp; 3809 linkq.retry[i].rflags = rinfo->flags; 3810 linkq.retry[i].rflags |= IWN_RFLAG_ANT(txant); 3811 /* Next retry at immediate lower bit-rate. */ 3812 if (txrate > 0) 3813 txrate--; 3814 } 3815 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1); 3816 } 3817 3818 /* 3819 * Broadcast node is used to send group-addressed and management frames. 3820 */ 3821 static int 3822 iwn_add_broadcast_node(struct iwn_softc *sc, int async) 3823 { 3824 struct iwn_ops *ops = &sc->ops; 3825 struct ifnet *ifp = sc->sc_ifp; 3826 struct ieee80211com *ic = ifp->if_l2com; 3827 struct iwn_node_info node; 3828 struct iwn_cmd_link_quality linkq; 3829 const struct iwn_rate *rinfo; 3830 uint8_t txant; 3831 int i, error; 3832 3833 memset(&node, 0, sizeof node); 3834 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr); 3835 node.id = sc->broadcast_id; 3836 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__); 3837 if ((error = ops->add_node(sc, &node, async)) != 0) 3838 return error; 3839 3840 /* Use the first valid TX antenna. */ 3841 txant = IWN_LSB(sc->txchainmask); 3842 3843 memset(&linkq, 0, sizeof linkq); 3844 linkq.id = sc->broadcast_id; 3845 linkq.antmsk_1stream = txant; 3846 linkq.antmsk_2stream = IWN_ANT_AB; 3847 linkq.ampdu_max = 64; 3848 linkq.ampdu_threshold = 3; 3849 linkq.ampdu_limit = htole16(4000); /* 4ms */ 3850 3851 /* Use lowest mandatory bit-rate. */ 3852 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 3853 rinfo = &iwn_rates[IWN_RIDX_OFDM6]; 3854 else 3855 rinfo = &iwn_rates[IWN_RIDX_CCK1]; 3856 linkq.retry[0].plcp = rinfo->plcp; 3857 linkq.retry[0].rflags = rinfo->flags; 3858 linkq.retry[0].rflags |= IWN_RFLAG_ANT(txant); 3859 /* Use same bit-rate for all TX retries. */ 3860 for (i = 1; i < IWN_MAX_TX_RETRIES; i++) { 3861 linkq.retry[i].plcp = linkq.retry[0].plcp; 3862 linkq.retry[i].rflags = linkq.retry[0].rflags; 3863 } 3864 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async); 3865 } 3866 3867 static int 3868 iwn_updateedca(struct ieee80211com *ic) 3869 { 3870 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ 3871 struct iwn_softc *sc = ic->ic_ifp->if_softc; 3872 struct iwn_edca_params cmd; 3873 int aci; 3874 3875 memset(&cmd, 0, sizeof cmd); 3876 cmd.flags = htole32(IWN_EDCA_UPDATE); 3877 for (aci = 0; aci < WME_NUM_AC; aci++) { 3878 const struct wmeParams *ac = 3879 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci]; 3880 cmd.ac[aci].aifsn = ac->wmep_aifsn; 3881 cmd.ac[aci].cwmin = htole16(IWN_EXP2(ac->wmep_logcwmin)); 3882 cmd.ac[aci].cwmax = htole16(IWN_EXP2(ac->wmep_logcwmax)); 3883 cmd.ac[aci].txoplimit = 3884 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit)); 3885 } 3886 IEEE80211_UNLOCK(ic); 3887 IWN_LOCK(sc); 3888 (void)iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1); 3889 IWN_UNLOCK(sc); 3890 IEEE80211_LOCK(ic); 3891 return 0; 3892 #undef IWN_EXP2 3893 } 3894 3895 static void 3896 iwn_update_mcast(struct ifnet *ifp) 3897 { 3898 /* Ignore */ 3899 } 3900 3901 static void 3902 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on) 3903 { 3904 struct iwn_cmd_led led; 3905 3906 /* Clear microcode LED ownership. */ 3907 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL); 3908 3909 led.which = which; 3910 led.unit = htole32(10000); /* on/off in unit of 100ms */ 3911 led.off = off; 3912 led.on = on; 3913 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1); 3914 } 3915 3916 /* 3917 * Set the critical temperature at which the firmware will stop the radio 3918 * and notify us. 3919 */ 3920 static int 3921 iwn_set_critical_temp(struct iwn_softc *sc) 3922 { 3923 struct iwn_critical_temp crit; 3924 int32_t temp; 3925 3926 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF); 3927 3928 if (sc->hw_type == IWN_HW_REV_TYPE_5150) 3929 temp = (IWN_CTOK(110) - sc->temp_off) * -5; 3930 else if (sc->hw_type == IWN_HW_REV_TYPE_4965) 3931 temp = IWN_CTOK(110); 3932 else 3933 temp = 110; 3934 memset(&crit, 0, sizeof crit); 3935 crit.tempR = htole32(temp); 3936 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n", temp); 3937 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0); 3938 } 3939 3940 static int 3941 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni) 3942 { 3943 struct iwn_cmd_timing cmd; 3944 uint64_t val, mod; 3945 3946 memset(&cmd, 0, sizeof cmd); 3947 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 3948 cmd.bintval = htole16(ni->ni_intval); 3949 cmd.lintval = htole16(10); 3950 3951 /* Compute remaining time until next beacon. */ 3952 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU; 3953 mod = le64toh(cmd.tstamp) % val; 3954 cmd.binitval = htole32((uint32_t)(val - mod)); 3955 3956 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n", 3957 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod)); 3958 3959 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1); 3960 } 3961 3962 static void 3963 iwn4965_power_calibration(struct iwn_softc *sc, int temp) 3964 { 3965 struct ifnet *ifp = sc->sc_ifp; 3966 struct ieee80211com *ic = ifp->if_l2com; 3967 3968 /* Adjust TX power if need be (delta >= 3 degC). */ 3969 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n", 3970 __func__, sc->temp, temp); 3971 if (abs(temp - sc->temp) >= 3) { 3972 /* Record temperature of last calibration. */ 3973 sc->temp = temp; 3974 (void)iwn4965_set_txpower(sc, ic->ic_bsschan, 1); 3975 } 3976 } 3977 3978 /* 3979 * Set TX power for current channel (each rate has its own power settings). 3980 * This function takes into account the regulatory information from EEPROM, 3981 * the current temperature and the current voltage. 3982 */ 3983 static int 3984 iwn4965_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch, 3985 int async) 3986 { 3987 /* Fixed-point arithmetic division using a n-bit fractional part. */ 3988 #define fdivround(a, b, n) \ 3989 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 3990 /* Linear interpolation. */ 3991 #define interpolate(x, x1, y1, x2, y2, n) \ 3992 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 3993 3994 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 }; 3995 struct iwn_ucode_info *uc = &sc->ucode_info; 3996 struct iwn4965_cmd_txpower cmd; 3997 struct iwn4965_eeprom_chan_samples *chans; 3998 const uint8_t *rf_gain, *dsp_gain; 3999 int32_t vdiff, tdiff; 4000 int i, c, grp, maxpwr; 4001 uint8_t chan; 4002 4003 /* Retrieve current channel from last RXON. */ 4004 chan = sc->rxon.chan; 4005 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n", 4006 chan); 4007 4008 memset(&cmd, 0, sizeof cmd); 4009 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1; 4010 cmd.chan = chan; 4011 4012 if (IEEE80211_IS_CHAN_5GHZ(ch)) { 4013 maxpwr = sc->maxpwr5GHz; 4014 rf_gain = iwn4965_rf_gain_5ghz; 4015 dsp_gain = iwn4965_dsp_gain_5ghz; 4016 } else { 4017 maxpwr = sc->maxpwr2GHz; 4018 rf_gain = iwn4965_rf_gain_2ghz; 4019 dsp_gain = iwn4965_dsp_gain_2ghz; 4020 } 4021 4022 /* Compute voltage compensation. */ 4023 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7; 4024 if (vdiff > 0) 4025 vdiff *= 2; 4026 if (abs(vdiff) > 2) 4027 vdiff = 0; 4028 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4029 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n", 4030 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage); 4031 4032 /* Get channel attenuation group. */ 4033 if (chan <= 20) /* 1-20 */ 4034 grp = 4; 4035 else if (chan <= 43) /* 34-43 */ 4036 grp = 0; 4037 else if (chan <= 70) /* 44-70 */ 4038 grp = 1; 4039 else if (chan <= 124) /* 71-124 */ 4040 grp = 2; 4041 else /* 125-200 */ 4042 grp = 3; 4043 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4044 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp); 4045 4046 /* Get channel sub-band. */ 4047 for (i = 0; i < IWN_NBANDS; i++) 4048 if (sc->bands[i].lo != 0 && 4049 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi) 4050 break; 4051 if (i == IWN_NBANDS) /* Can't happen in real-life. */ 4052 return EINVAL; 4053 chans = sc->bands[i].chans; 4054 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4055 "%s: chan %d sub-band=%d\n", __func__, chan, i); 4056 4057 for (c = 0; c < 2; c++) { 4058 uint8_t power, gain, temp; 4059 int maxchpwr, pwr, ridx, idx; 4060 4061 power = interpolate(chan, 4062 chans[0].num, chans[0].samples[c][1].power, 4063 chans[1].num, chans[1].samples[c][1].power, 1); 4064 gain = interpolate(chan, 4065 chans[0].num, chans[0].samples[c][1].gain, 4066 chans[1].num, chans[1].samples[c][1].gain, 1); 4067 temp = interpolate(chan, 4068 chans[0].num, chans[0].samples[c][1].temp, 4069 chans[1].num, chans[1].samples[c][1].temp, 1); 4070 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4071 "%s: Tx chain %d: power=%d gain=%d temp=%d\n", 4072 __func__, c, power, gain, temp); 4073 4074 /* Compute temperature compensation. */ 4075 tdiff = ((sc->temp - temp) * 2) / tdiv[grp]; 4076 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4077 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n", 4078 __func__, tdiff, sc->temp, temp); 4079 4080 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) { 4081 /* Convert dBm to half-dBm. */ 4082 maxchpwr = sc->maxpwr[chan] * 2; 4083 if ((ridx / 8) & 1) 4084 maxchpwr -= 6; /* MIMO 2T: -3dB */ 4085 4086 pwr = maxpwr; 4087 4088 /* Adjust TX power based on rate. */ 4089 if ((ridx % 8) == 5) 4090 pwr -= 15; /* OFDM48: -7.5dB */ 4091 else if ((ridx % 8) == 6) 4092 pwr -= 17; /* OFDM54: -8.5dB */ 4093 else if ((ridx % 8) == 7) 4094 pwr -= 20; /* OFDM60: -10dB */ 4095 else 4096 pwr -= 10; /* Others: -5dB */ 4097 4098 /* Do not exceed channel max TX power. */ 4099 if (pwr > maxchpwr) 4100 pwr = maxchpwr; 4101 4102 idx = gain - (pwr - power) - tdiff - vdiff; 4103 if ((ridx / 8) & 1) /* MIMO */ 4104 idx += (int32_t)le32toh(uc->atten[grp][c]); 4105 4106 if (cmd.band == 0) 4107 idx += 9; /* 5GHz */ 4108 if (ridx == IWN_RIDX_MAX) 4109 idx += 5; /* CCK */ 4110 4111 /* Make sure idx stays in a valid range. */ 4112 if (idx < 0) 4113 idx = 0; 4114 else if (idx > IWN4965_MAX_PWR_INDEX) 4115 idx = IWN4965_MAX_PWR_INDEX; 4116 4117 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4118 "%s: Tx chain %d, rate idx %d: power=%d\n", 4119 __func__, c, ridx, idx); 4120 cmd.power[ridx].rf_gain[c] = rf_gain[idx]; 4121 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx]; 4122 } 4123 } 4124 4125 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 4126 "%s: set tx power for chan %d\n", __func__, chan); 4127 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async); 4128 4129 #undef interpolate 4130 #undef fdivround 4131 } 4132 4133 static int 4134 iwn5000_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch, 4135 int async) 4136 { 4137 struct iwn5000_cmd_txpower cmd; 4138 4139 /* 4140 * TX power calibration is handled automatically by the firmware 4141 * for 5000 Series. 4142 */ 4143 memset(&cmd, 0, sizeof cmd); 4144 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */ 4145 cmd.flags = IWN5000_TXPOWER_NO_CLOSED; 4146 cmd.srv_limit = IWN5000_TXPOWER_AUTO; 4147 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: setting TX power\n", __func__); 4148 return iwn_cmd(sc, IWN_CMD_TXPOWER_DBM, &cmd, sizeof cmd, async); 4149 } 4150 4151 /* 4152 * Retrieve the maximum RSSI (in dBm) among receivers. 4153 */ 4154 static int 4155 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 4156 { 4157 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf; 4158 uint8_t mask, agc; 4159 int rssi; 4160 4161 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC; 4162 agc = (le16toh(phy->agc) >> 7) & 0x7f; 4163 4164 rssi = 0; 4165 if (mask & IWN_ANT_A) 4166 rssi = MAX(rssi, phy->rssi[0]); 4167 if (mask & IWN_ANT_B) 4168 rssi = MAX(rssi, phy->rssi[2]); 4169 if (mask & IWN_ANT_C) 4170 rssi = MAX(rssi, phy->rssi[4]); 4171 4172 DPRINTF(sc, IWN_DEBUG_RECV, 4173 "%s: agc %d mask 0x%x rssi %d %d %d result %d\n", __func__, agc, 4174 mask, phy->rssi[0], phy->rssi[2], phy->rssi[4], 4175 rssi - agc - IWN_RSSI_TO_DBM); 4176 return rssi - agc - IWN_RSSI_TO_DBM; 4177 } 4178 4179 static int 4180 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 4181 { 4182 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf; 4183 uint8_t agc; 4184 int rssi; 4185 4186 agc = (le32toh(phy->agc) >> 9) & 0x7f; 4187 4188 rssi = MAX(le16toh(phy->rssi[0]) & 0xff, 4189 le16toh(phy->rssi[1]) & 0xff); 4190 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi); 4191 4192 DPRINTF(sc, IWN_DEBUG_RECV, 4193 "%s: agc %d rssi %d %d %d result %d\n", __func__, agc, 4194 phy->rssi[0], phy->rssi[1], phy->rssi[2], 4195 rssi - agc - IWN_RSSI_TO_DBM); 4196 return rssi - agc - IWN_RSSI_TO_DBM; 4197 } 4198 4199 /* 4200 * Retrieve the average noise (in dBm) among receivers. 4201 */ 4202 static int 4203 iwn_get_noise(const struct iwn_rx_general_stats *stats) 4204 { 4205 int i, total, nbant, noise; 4206 4207 total = nbant = 0; 4208 for (i = 0; i < 3; i++) { 4209 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0) 4210 continue; 4211 total += noise; 4212 nbant++; 4213 } 4214 /* There should be at least one antenna but check anyway. */ 4215 return (nbant == 0) ? -127 : (total / nbant) - 107; 4216 } 4217 4218 /* 4219 * Compute temperature (in degC) from last received statistics. 4220 */ 4221 static int 4222 iwn4965_get_temperature(struct iwn_softc *sc) 4223 { 4224 struct iwn_ucode_info *uc = &sc->ucode_info; 4225 int32_t r1, r2, r3, r4, temp; 4226 4227 r1 = le32toh(uc->temp[0].chan20MHz); 4228 r2 = le32toh(uc->temp[1].chan20MHz); 4229 r3 = le32toh(uc->temp[2].chan20MHz); 4230 r4 = le32toh(sc->rawtemp); 4231 4232 if (r1 == r3) /* Prevents division by 0 (should not happen). */ 4233 return 0; 4234 4235 /* Sign-extend 23-bit R4 value to 32-bit. */ 4236 r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000; 4237 /* Compute temperature in Kelvin. */ 4238 temp = (259 * (r4 - r2)) / (r3 - r1); 4239 temp = (temp * 97) / 100 + 8; 4240 4241 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp, 4242 IWN_KTOC(temp)); 4243 return IWN_KTOC(temp); 4244 } 4245 4246 static int 4247 iwn5000_get_temperature(struct iwn_softc *sc) 4248 { 4249 int32_t temp; 4250 4251 /* 4252 * Temperature is not used by the driver for 5000 Series because 4253 * TX power calibration is handled by firmware. 4254 */ 4255 temp = le32toh(sc->rawtemp); 4256 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 4257 temp = (temp / -5) + sc->temp_off; 4258 temp = IWN_KTOC(temp); 4259 } 4260 return temp; 4261 } 4262 4263 /* 4264 * Initialize sensitivity calibration state machine. 4265 */ 4266 static int 4267 iwn_init_sensitivity(struct iwn_softc *sc) 4268 { 4269 struct iwn_ops *ops = &sc->ops; 4270 struct iwn_calib_state *calib = &sc->calib; 4271 uint32_t flags; 4272 int error; 4273 4274 /* Reset calibration state machine. */ 4275 memset(calib, 0, sizeof (*calib)); 4276 calib->state = IWN_CALIB_STATE_INIT; 4277 calib->cck_state = IWN_CCK_STATE_HIFA; 4278 /* Set initial correlation values. */ 4279 calib->ofdm_x1 = sc->limits->min_ofdm_x1; 4280 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1; 4281 calib->ofdm_x4 = sc->limits->min_ofdm_x4; 4282 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4; 4283 calib->cck_x4 = 125; 4284 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4; 4285 calib->energy_cck = sc->limits->energy_cck; 4286 4287 /* Write initial sensitivity. */ 4288 if ((error = iwn_send_sensitivity(sc)) != 0) 4289 return error; 4290 4291 /* Write initial gains. */ 4292 if ((error = ops->init_gains(sc)) != 0) 4293 return error; 4294 4295 /* Request statistics at each beacon interval. */ 4296 flags = 0; 4297 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending request for statistics\n", 4298 __func__); 4299 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1); 4300 } 4301 4302 /* 4303 * Collect noise and RSSI statistics for the first 20 beacons received 4304 * after association and use them to determine connected antennas and 4305 * to set differential gains. 4306 */ 4307 static void 4308 iwn_collect_noise(struct iwn_softc *sc, 4309 const struct iwn_rx_general_stats *stats) 4310 { 4311 struct iwn_ops *ops = &sc->ops; 4312 struct iwn_calib_state *calib = &sc->calib; 4313 uint32_t val; 4314 int i; 4315 4316 /* Accumulate RSSI and noise for all 3 antennas. */ 4317 for (i = 0; i < 3; i++) { 4318 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff; 4319 calib->noise[i] += le32toh(stats->noise[i]) & 0xff; 4320 } 4321 /* NB: We update differential gains only once after 20 beacons. */ 4322 if (++calib->nbeacons < 20) 4323 return; 4324 4325 /* Determine highest average RSSI. */ 4326 val = MAX(calib->rssi[0], calib->rssi[1]); 4327 val = MAX(calib->rssi[2], val); 4328 4329 /* Determine which antennas are connected. */ 4330 sc->chainmask = sc->rxchainmask; 4331 for (i = 0; i < 3; i++) 4332 if (val - calib->rssi[i] > 15 * 20) 4333 sc->chainmask &= ~(1 << i); 4334 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4335 "%s: RX chains mask: theoretical=0x%x, actual=0x%x\n", 4336 __func__, sc->rxchainmask, sc->chainmask); 4337 4338 /* If none of the TX antennas are connected, keep at least one. */ 4339 if ((sc->chainmask & sc->txchainmask) == 0) 4340 sc->chainmask |= IWN_LSB(sc->txchainmask); 4341 4342 (void)ops->set_gains(sc); 4343 calib->state = IWN_CALIB_STATE_RUN; 4344 4345 #ifdef notyet 4346 /* XXX Disable RX chains with no antennas connected. */ 4347 sc->rxon.rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask)); 4348 (void)iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 4349 #endif 4350 4351 #if 0 4352 /* XXX: not yet */ 4353 /* Enable power-saving mode if requested by user. */ 4354 if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON) 4355 (void)iwn_set_pslevel(sc, 0, 3, 1); 4356 #endif 4357 } 4358 4359 static int 4360 iwn4965_init_gains(struct iwn_softc *sc) 4361 { 4362 struct iwn_phy_calib_gain cmd; 4363 4364 memset(&cmd, 0, sizeof cmd); 4365 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4366 /* Differential gains initially set to 0 for all 3 antennas. */ 4367 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4368 "%s: setting initial differential gains\n", __func__); 4369 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4370 } 4371 4372 static int 4373 iwn5000_init_gains(struct iwn_softc *sc) 4374 { 4375 struct iwn_phy_calib cmd; 4376 4377 memset(&cmd, 0, sizeof cmd); 4378 cmd.code = sc->reset_noise_gain; 4379 cmd.ngroups = 1; 4380 cmd.isvalid = 1; 4381 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4382 "%s: setting initial differential gains\n", __func__); 4383 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4384 } 4385 4386 static int 4387 iwn4965_set_gains(struct iwn_softc *sc) 4388 { 4389 struct iwn_calib_state *calib = &sc->calib; 4390 struct iwn_phy_calib_gain cmd; 4391 int i, delta, noise; 4392 4393 /* Get minimal noise among connected antennas. */ 4394 noise = INT_MAX; /* NB: There's at least one antenna. */ 4395 for (i = 0; i < 3; i++) 4396 if (sc->chainmask & (1 << i)) 4397 noise = MIN(calib->noise[i], noise); 4398 4399 memset(&cmd, 0, sizeof cmd); 4400 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4401 /* Set differential gains for connected antennas. */ 4402 for (i = 0; i < 3; i++) { 4403 if (sc->chainmask & (1 << i)) { 4404 /* Compute attenuation (in unit of 1.5dB). */ 4405 delta = (noise - (int32_t)calib->noise[i]) / 30; 4406 /* NB: delta <= 0 */ 4407 /* Limit to [-4.5dB,0]. */ 4408 cmd.gain[i] = MIN(abs(delta), 3); 4409 if (delta < 0) 4410 cmd.gain[i] |= 1 << 2; /* sign bit */ 4411 } 4412 } 4413 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4414 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n", 4415 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask); 4416 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4417 } 4418 4419 static int 4420 iwn5000_set_gains(struct iwn_softc *sc) 4421 { 4422 struct iwn_calib_state *calib = &sc->calib; 4423 struct iwn_phy_calib_gain cmd; 4424 int i, ant, div, delta; 4425 4426 /* We collected 20 beacons and !=6050 need a 1.5 factor. */ 4427 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30; 4428 4429 memset(&cmd, 0, sizeof cmd); 4430 cmd.code = sc->noise_gain; 4431 cmd.ngroups = 1; 4432 cmd.isvalid = 1; 4433 /* Get first available RX antenna as referential. */ 4434 ant = IWN_LSB(sc->rxchainmask); 4435 /* Set differential gains for other antennas. */ 4436 for (i = ant + 1; i < 3; i++) { 4437 if (sc->chainmask & (1 << i)) { 4438 /* The delta is relative to antenna "ant". */ 4439 delta = ((int32_t)calib->noise[ant] - 4440 (int32_t)calib->noise[i]) / div; 4441 /* Limit to [-4.5dB,+4.5dB]. */ 4442 cmd.gain[i - 1] = MIN(abs(delta), 3); 4443 if (delta < 0) 4444 cmd.gain[i - 1] |= 1 << 2; /* sign bit */ 4445 } 4446 } 4447 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4448 "setting differential gains Ant B/C: %x/%x (%x)\n", 4449 cmd.gain[0], cmd.gain[1], sc->chainmask); 4450 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4451 } 4452 4453 /* 4454 * Tune RF RX sensitivity based on the number of false alarms detected 4455 * during the last beacon period. 4456 */ 4457 static void 4458 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats) 4459 { 4460 #define inc(val, inc, max) \ 4461 if ((val) < (max)) { \ 4462 if ((val) < (max) - (inc)) \ 4463 (val) += (inc); \ 4464 else \ 4465 (val) = (max); \ 4466 needs_update = 1; \ 4467 } 4468 #define dec(val, dec, min) \ 4469 if ((val) > (min)) { \ 4470 if ((val) > (min) + (dec)) \ 4471 (val) -= (dec); \ 4472 else \ 4473 (val) = (min); \ 4474 needs_update = 1; \ 4475 } 4476 4477 const struct iwn_sensitivity_limits *limits = sc->limits; 4478 struct iwn_calib_state *calib = &sc->calib; 4479 uint32_t val, rxena, fa; 4480 uint32_t energy[3], energy_min; 4481 uint8_t noise[3], noise_ref; 4482 int i, needs_update = 0; 4483 4484 /* Check that we've been enabled long enough. */ 4485 if ((rxena = le32toh(stats->general.load)) == 0) 4486 return; 4487 4488 /* Compute number of false alarms since last call for OFDM. */ 4489 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm; 4490 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm; 4491 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 4492 4493 /* Save counters values for next call. */ 4494 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp); 4495 calib->fa_ofdm = le32toh(stats->ofdm.fa); 4496 4497 if (fa > 50 * rxena) { 4498 /* High false alarm count, decrease sensitivity. */ 4499 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4500 "%s: OFDM high false alarm count: %u\n", __func__, fa); 4501 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1); 4502 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1); 4503 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4); 4504 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4); 4505 4506 } else if (fa < 5 * rxena) { 4507 /* Low false alarm count, increase sensitivity. */ 4508 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4509 "%s: OFDM low false alarm count: %u\n", __func__, fa); 4510 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1); 4511 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1); 4512 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4); 4513 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4); 4514 } 4515 4516 /* Compute maximum noise among 3 receivers. */ 4517 for (i = 0; i < 3; i++) 4518 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff; 4519 val = MAX(noise[0], noise[1]); 4520 val = MAX(noise[2], val); 4521 /* Insert it into our samples table. */ 4522 calib->noise_samples[calib->cur_noise_sample] = val; 4523 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20; 4524 4525 /* Compute maximum noise among last 20 samples. */ 4526 noise_ref = calib->noise_samples[0]; 4527 for (i = 1; i < 20; i++) 4528 noise_ref = MAX(noise_ref, calib->noise_samples[i]); 4529 4530 /* Compute maximum energy among 3 receivers. */ 4531 for (i = 0; i < 3; i++) 4532 energy[i] = le32toh(stats->general.energy[i]); 4533 val = MIN(energy[0], energy[1]); 4534 val = MIN(energy[2], val); 4535 /* Insert it into our samples table. */ 4536 calib->energy_samples[calib->cur_energy_sample] = val; 4537 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10; 4538 4539 /* Compute minimum energy among last 10 samples. */ 4540 energy_min = calib->energy_samples[0]; 4541 for (i = 1; i < 10; i++) 4542 energy_min = MAX(energy_min, calib->energy_samples[i]); 4543 energy_min += 6; 4544 4545 /* Compute number of false alarms since last call for CCK. */ 4546 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck; 4547 fa += le32toh(stats->cck.fa) - calib->fa_cck; 4548 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 4549 4550 /* Save counters values for next call. */ 4551 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp); 4552 calib->fa_cck = le32toh(stats->cck.fa); 4553 4554 if (fa > 50 * rxena) { 4555 /* High false alarm count, decrease sensitivity. */ 4556 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4557 "%s: CCK high false alarm count: %u\n", __func__, fa); 4558 calib->cck_state = IWN_CCK_STATE_HIFA; 4559 calib->low_fa = 0; 4560 4561 if (calib->cck_x4 > 160) { 4562 calib->noise_ref = noise_ref; 4563 if (calib->energy_cck > 2) 4564 dec(calib->energy_cck, 2, energy_min); 4565 } 4566 if (calib->cck_x4 < 160) { 4567 calib->cck_x4 = 161; 4568 needs_update = 1; 4569 } else 4570 inc(calib->cck_x4, 3, limits->max_cck_x4); 4571 4572 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4); 4573 4574 } else if (fa < 5 * rxena) { 4575 /* Low false alarm count, increase sensitivity. */ 4576 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4577 "%s: CCK low false alarm count: %u\n", __func__, fa); 4578 calib->cck_state = IWN_CCK_STATE_LOFA; 4579 calib->low_fa++; 4580 4581 if (calib->cck_state != IWN_CCK_STATE_INIT && 4582 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 || 4583 calib->low_fa > 100)) { 4584 inc(calib->energy_cck, 2, limits->min_energy_cck); 4585 dec(calib->cck_x4, 3, limits->min_cck_x4); 4586 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4); 4587 } 4588 } else { 4589 /* Not worth to increase or decrease sensitivity. */ 4590 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4591 "%s: CCK normal false alarm count: %u\n", __func__, fa); 4592 calib->low_fa = 0; 4593 calib->noise_ref = noise_ref; 4594 4595 if (calib->cck_state == IWN_CCK_STATE_HIFA) { 4596 /* Previous interval had many false alarms. */ 4597 dec(calib->energy_cck, 8, energy_min); 4598 } 4599 calib->cck_state = IWN_CCK_STATE_INIT; 4600 } 4601 4602 if (needs_update) 4603 (void)iwn_send_sensitivity(sc); 4604 #undef dec 4605 #undef inc 4606 } 4607 4608 static int 4609 iwn_send_sensitivity(struct iwn_softc *sc) 4610 { 4611 struct iwn_calib_state *calib = &sc->calib; 4612 struct iwn_enhanced_sensitivity_cmd cmd; 4613 int len; 4614 4615 memset(&cmd, 0, sizeof cmd); 4616 len = sizeof (struct iwn_sensitivity_cmd); 4617 cmd.which = IWN_SENSITIVITY_WORKTBL; 4618 /* OFDM modulation. */ 4619 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1); 4620 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1); 4621 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4); 4622 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4); 4623 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm); 4624 cmd.energy_ofdm_th = htole16(62); 4625 /* CCK modulation. */ 4626 cmd.corr_cck_x4 = htole16(calib->cck_x4); 4627 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4); 4628 cmd.energy_cck = htole16(calib->energy_cck); 4629 /* Barker modulation: use default values. */ 4630 cmd.corr_barker = htole16(190); 4631 cmd.corr_barker_mrc = htole16(390); 4632 4633 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 4634 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__, 4635 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4, 4636 calib->ofdm_mrc_x4, calib->cck_x4, 4637 calib->cck_mrc_x4, calib->energy_cck); 4638 4639 if (!(sc->sc_flags & IWN_FLAG_ENH_SENS)) 4640 goto send; 4641 /* Enhanced sensitivity settings. */ 4642 len = sizeof (struct iwn_enhanced_sensitivity_cmd); 4643 cmd.ofdm_det_slope_mrc = htole16(668); 4644 cmd.ofdm_det_icept_mrc = htole16(4); 4645 cmd.ofdm_det_slope = htole16(486); 4646 cmd.ofdm_det_icept = htole16(37); 4647 cmd.cck_det_slope_mrc = htole16(853); 4648 cmd.cck_det_icept_mrc = htole16(4); 4649 cmd.cck_det_slope = htole16(476); 4650 cmd.cck_det_icept = htole16(99); 4651 send: 4652 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, len, 1); 4653 } 4654 4655 /* 4656 * Set STA mode power saving level (between 0 and 5). 4657 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving. 4658 */ 4659 static int 4660 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async) 4661 { 4662 struct iwn_pmgt_cmd cmd; 4663 const struct iwn_pmgt *pmgt; 4664 uint32_t max, skip_dtim; 4665 uint32_t reg; 4666 int i; 4667 4668 /* Select which PS parameters to use. */ 4669 if (dtim <= 2) 4670 pmgt = &iwn_pmgt[0][level]; 4671 else if (dtim <= 10) 4672 pmgt = &iwn_pmgt[1][level]; 4673 else 4674 pmgt = &iwn_pmgt[2][level]; 4675 4676 memset(&cmd, 0, sizeof cmd); 4677 if (level != 0) /* not CAM */ 4678 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP); 4679 if (level == 5) 4680 cmd.flags |= htole16(IWN_PS_FAST_PD); 4681 /* Retrieve PCIe Active State Power Management (ASPM). */ 4682 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1); 4683 if (!(reg & 0x1)) /* L0s Entry disabled. */ 4684 cmd.flags |= htole16(IWN_PS_PCI_PMGT); 4685 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024); 4686 cmd.txtimeout = htole32(pmgt->txtimeout * 1024); 4687 4688 if (dtim == 0) { 4689 dtim = 1; 4690 skip_dtim = 0; 4691 } else 4692 skip_dtim = pmgt->skip_dtim; 4693 if (skip_dtim != 0) { 4694 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM); 4695 max = pmgt->intval[4]; 4696 if (max == (uint32_t)-1) 4697 max = dtim * (skip_dtim + 1); 4698 else if (max > dtim) 4699 max = (max / dtim) * dtim; 4700 } else 4701 max = dtim; 4702 for (i = 0; i < 5; i++) 4703 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i])); 4704 4705 DPRINTF(sc, IWN_DEBUG_RESET, "setting power saving level to %d\n", 4706 level); 4707 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async); 4708 } 4709 4710 static int 4711 iwn_send_btcoex(struct iwn_softc *sc) 4712 { 4713 struct iwn_bluetooth cmd; 4714 4715 memset(&cmd, 0, sizeof cmd); 4716 cmd.flags = IWN_BT_COEX_CHAN_ANN | IWN_BT_COEX_BT_PRIO; 4717 cmd.lead_time = IWN_BT_LEAD_TIME_DEF; 4718 cmd.max_kill = IWN_BT_MAX_KILL_DEF; 4719 DPRINTF(sc, IWN_DEBUG_RESET, "%s: configuring bluetooth coexistence\n", 4720 __func__); 4721 return iwn_cmd(sc, IWN_CMD_BT_COEX, &cmd, sizeof(cmd), 0); 4722 } 4723 4724 static int 4725 iwn_send_advanced_btcoex(struct iwn_softc *sc) 4726 { 4727 static const uint32_t btcoex_3wire[12] = { 4728 0xaaaaaaaa, 0xaaaaaaaa, 0xaeaaaaaa, 0xaaaaaaaa, 4729 0xcc00ff28, 0x0000aaaa, 0xcc00aaaa, 0x0000aaaa, 4730 0xc0004000, 0x00004000, 0xf0005000, 0xf0005000, 4731 }; 4732 struct iwn6000_btcoex_config btconfig; 4733 struct iwn_btcoex_priotable btprio; 4734 struct iwn_btcoex_prot btprot; 4735 int error, i; 4736 4737 memset(&btconfig, 0, sizeof btconfig); 4738 btconfig.flags = 145; 4739 btconfig.max_kill = 5; 4740 btconfig.bt3_t7_timer = 1; 4741 btconfig.kill_ack = htole32(0xffff0000); 4742 btconfig.kill_cts = htole32(0xffff0000); 4743 btconfig.sample_time = 2; 4744 btconfig.bt3_t2_timer = 0xc; 4745 for (i = 0; i < 12; i++) 4746 btconfig.lookup_table[i] = htole32(btcoex_3wire[i]); 4747 btconfig.valid = htole16(0xff); 4748 btconfig.prio_boost = 0xf0; 4749 DPRINTF(sc, IWN_DEBUG_RESET, 4750 "%s: configuring advanced bluetooth coexistence\n", __func__); 4751 error = iwn_cmd(sc, IWN_CMD_BT_COEX, &btconfig, sizeof(btconfig), 1); 4752 if (error != 0) 4753 return error; 4754 4755 memset(&btprio, 0, sizeof btprio); 4756 btprio.calib_init1 = 0x6; 4757 btprio.calib_init2 = 0x7; 4758 btprio.calib_periodic_low1 = 0x2; 4759 btprio.calib_periodic_low2 = 0x3; 4760 btprio.calib_periodic_high1 = 0x4; 4761 btprio.calib_periodic_high2 = 0x5; 4762 btprio.dtim = 0x6; 4763 btprio.scan52 = 0x8; 4764 btprio.scan24 = 0xa; 4765 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PRIOTABLE, &btprio, sizeof(btprio), 4766 1); 4767 if (error != 0) 4768 return error; 4769 4770 /* Force BT state machine change. */ 4771 memset(&btprot, 0, sizeof btprio); 4772 btprot.open = 1; 4773 btprot.type = 1; 4774 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1); 4775 if (error != 0) 4776 return error; 4777 btprot.open = 0; 4778 return iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof(btprot), 1); 4779 } 4780 4781 static int 4782 iwn_config(struct iwn_softc *sc) 4783 { 4784 struct iwn_ops *ops = &sc->ops; 4785 struct ifnet *ifp = sc->sc_ifp; 4786 struct ieee80211com *ic = ifp->if_l2com; 4787 uint32_t txmask; 4788 uint16_t rxchain; 4789 int error; 4790 4791 if (sc->hw_type == IWN_HW_REV_TYPE_6005) { 4792 /* Set radio temperature sensor offset. */ 4793 error = iwn5000_temp_offset_calib(sc); 4794 if (error != 0) { 4795 device_printf(sc->sc_dev, 4796 "%s: could not set temperature offset\n", __func__); 4797 return error; 4798 } 4799 } 4800 4801 /* Configure valid TX chains for >=5000 Series. */ 4802 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4803 txmask = htole32(sc->txchainmask); 4804 DPRINTF(sc, IWN_DEBUG_RESET, 4805 "%s: configuring valid TX chains 0x%x\n", __func__, txmask); 4806 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask, 4807 sizeof txmask, 0); 4808 if (error != 0) { 4809 device_printf(sc->sc_dev, 4810 "%s: could not configure valid TX chains, " 4811 "error %d\n", __func__, error); 4812 return error; 4813 } 4814 } 4815 4816 /* Configure bluetooth coexistence. */ 4817 if (sc->sc_flags & IWN_FLAG_ADV_BTCOEX) 4818 error = iwn_send_advanced_btcoex(sc); 4819 else 4820 error = iwn_send_btcoex(sc); 4821 if (error != 0) { 4822 device_printf(sc->sc_dev, 4823 "%s: could not configure bluetooth coexistence, error %d\n", 4824 __func__, error); 4825 return error; 4826 } 4827 4828 /* Set mode, channel, RX filter and enable RX. */ 4829 memset(&sc->rxon, 0, sizeof (struct iwn_rxon)); 4830 IEEE80211_ADDR_COPY(sc->rxon.myaddr, IF_LLADDR(ifp)); 4831 IEEE80211_ADDR_COPY(sc->rxon.wlap, IF_LLADDR(ifp)); 4832 sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_curchan); 4833 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 4834 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 4835 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 4836 switch (ic->ic_opmode) { 4837 case IEEE80211_M_STA: 4838 sc->rxon.mode = IWN_MODE_STA; 4839 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST); 4840 break; 4841 case IEEE80211_M_MONITOR: 4842 sc->rxon.mode = IWN_MODE_MONITOR; 4843 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST | 4844 IWN_FILTER_CTL | IWN_FILTER_PROMISC); 4845 break; 4846 default: 4847 /* Should not get there. */ 4848 break; 4849 } 4850 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */ 4851 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */ 4852 sc->rxon.ht_single_mask = 0xff; 4853 sc->rxon.ht_dual_mask = 0xff; 4854 sc->rxon.ht_triple_mask = 0xff; 4855 rxchain = 4856 IWN_RXCHAIN_VALID(sc->rxchainmask) | 4857 IWN_RXCHAIN_MIMO_COUNT(2) | 4858 IWN_RXCHAIN_IDLE_COUNT(2); 4859 sc->rxon.rxchain = htole16(rxchain); 4860 DPRINTF(sc, IWN_DEBUG_RESET, "%s: setting configuration\n", __func__); 4861 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 0); 4862 if (error != 0) { 4863 device_printf(sc->sc_dev, "%s: RXON command failed\n", 4864 __func__); 4865 return error; 4866 } 4867 4868 if ((error = iwn_add_broadcast_node(sc, 0)) != 0) { 4869 device_printf(sc->sc_dev, "%s: could not add broadcast node\n", 4870 __func__); 4871 return error; 4872 } 4873 4874 /* Configuration has changed, set TX power accordingly. */ 4875 if ((error = ops->set_txpower(sc, ic->ic_curchan, 0)) != 0) { 4876 device_printf(sc->sc_dev, "%s: could not set TX power\n", 4877 __func__); 4878 return error; 4879 } 4880 4881 if ((error = iwn_set_critical_temp(sc)) != 0) { 4882 device_printf(sc->sc_dev, 4883 "%s: could not set critical temperature\n", __func__); 4884 return error; 4885 } 4886 4887 /* Set power saving level to CAM during initialization. */ 4888 if ((error = iwn_set_pslevel(sc, 0, 0, 0)) != 0) { 4889 device_printf(sc->sc_dev, 4890 "%s: could not set power saving level\n", __func__); 4891 return error; 4892 } 4893 return 0; 4894 } 4895 4896 /* 4897 * Add an ssid element to a frame. 4898 */ 4899 static uint8_t * 4900 ieee80211_add_ssid(uint8_t *frm, const uint8_t *ssid, u_int len) 4901 { 4902 *frm++ = IEEE80211_ELEMID_SSID; 4903 *frm++ = len; 4904 memcpy(frm, ssid, len); 4905 return frm + len; 4906 } 4907 4908 static int 4909 iwn_scan(struct iwn_softc *sc) 4910 { 4911 struct ifnet *ifp = sc->sc_ifp; 4912 struct ieee80211com *ic = ifp->if_l2com; 4913 struct ieee80211_scan_state *ss = ic->ic_scan; /*XXX*/ 4914 struct iwn_scan_hdr *hdr; 4915 struct iwn_cmd_data *tx; 4916 struct iwn_scan_essid *essid; 4917 struct iwn_scan_chan *chan; 4918 struct ieee80211_frame *wh; 4919 struct ieee80211_rateset *rs; 4920 struct ieee80211_channel *c; 4921 uint8_t *buf, *frm; 4922 uint16_t rxchain; 4923 uint8_t txant; 4924 int buflen, error; 4925 4926 buf = malloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO); 4927 if (buf == NULL) { 4928 device_printf(sc->sc_dev, 4929 "%s: could not allocate buffer for scan command\n", 4930 __func__); 4931 return ENOMEM; 4932 } 4933 hdr = (struct iwn_scan_hdr *)buf; 4934 /* 4935 * Move to the next channel if no frames are received within 10ms 4936 * after sending the probe request. 4937 */ 4938 hdr->quiet_time = htole16(10); /* timeout in milliseconds */ 4939 hdr->quiet_threshold = htole16(1); /* min # of packets */ 4940 4941 /* Select antennas for scanning. */ 4942 rxchain = 4943 IWN_RXCHAIN_VALID(sc->rxchainmask) | 4944 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) | 4945 IWN_RXCHAIN_DRIVER_FORCE; 4946 if (IEEE80211_IS_CHAN_A(ic->ic_curchan) && 4947 sc->hw_type == IWN_HW_REV_TYPE_4965) { 4948 /* Ant A must be avoided in 5GHz because of an HW bug. */ 4949 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_BC); 4950 } else /* Use all available RX antennas. */ 4951 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask); 4952 hdr->rxchain = htole16(rxchain); 4953 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON); 4954 4955 tx = (struct iwn_cmd_data *)(hdr + 1); 4956 tx->flags = htole32(IWN_TX_AUTO_SEQ); 4957 tx->id = sc->broadcast_id; 4958 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4959 4960 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) { 4961 /* Send probe requests at 6Mbps. */ 4962 tx->plcp = iwn_rates[IWN_RIDX_OFDM6].plcp; 4963 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; 4964 } else { 4965 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO); 4966 /* Send probe requests at 1Mbps. */ 4967 tx->plcp = iwn_rates[IWN_RIDX_CCK1].plcp; 4968 tx->rflags = IWN_RFLAG_CCK; 4969 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; 4970 } 4971 /* Use the first valid TX antenna. */ 4972 txant = IWN_LSB(sc->txchainmask); 4973 tx->rflags |= IWN_RFLAG_ANT(txant); 4974 4975 essid = (struct iwn_scan_essid *)(tx + 1); 4976 if (ss->ss_ssid[0].len != 0) { 4977 essid[0].id = IEEE80211_ELEMID_SSID; 4978 essid[0].len = ss->ss_ssid[0].len; 4979 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len); 4980 } 4981 /* 4982 * Build a probe request frame. Most of the following code is a 4983 * copy & paste of what is done in net80211. 4984 */ 4985 wh = (struct ieee80211_frame *)(essid + 20); 4986 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 4987 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 4988 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 4989 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr); 4990 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp)); 4991 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr); 4992 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */ 4993 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */ 4994 4995 frm = (uint8_t *)(wh + 1); 4996 frm = ieee80211_add_ssid(frm, NULL, 0); 4997 frm = ieee80211_add_rates(frm, rs); 4998 if (rs->rs_nrates > IEEE80211_RATE_SIZE) 4999 frm = ieee80211_add_xrates(frm, rs); 5000 #if 0 /* HT */ 5001 if (ic->ic_flags & IEEE80211_F_HTON) 5002 frm = ieee80211_add_htcaps(frm, ic); 5003 #endif 5004 5005 /* Set length of probe request. */ 5006 tx->len = htole16(frm - (uint8_t *)wh); 5007 5008 c = ic->ic_curchan; 5009 chan = (struct iwn_scan_chan *)frm; 5010 chan->chan = htole16(ieee80211_chan2ieee(ic, c)); 5011 chan->flags = 0; 5012 if (ss->ss_nssid > 0) 5013 chan->flags |= htole32(IWN_CHAN_NPBREQS(1)); 5014 chan->dsp_gain = 0x6e; 5015 if (IEEE80211_IS_CHAN_5GHZ(c) && 5016 !(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 5017 chan->rf_gain = 0x3b; 5018 chan->active = htole16(24); 5019 chan->passive = htole16(110); 5020 chan->flags |= htole32(IWN_CHAN_ACTIVE); 5021 } else if (IEEE80211_IS_CHAN_5GHZ(c)) { 5022 chan->rf_gain = 0x3b; 5023 chan->active = htole16(24); 5024 if (sc->rxon.associd) 5025 chan->passive = htole16(78); 5026 else 5027 chan->passive = htole16(110); 5028 hdr->crc_threshold = 0xffff; 5029 } else if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 5030 chan->rf_gain = 0x28; 5031 chan->active = htole16(36); 5032 chan->passive = htole16(120); 5033 chan->flags |= htole32(IWN_CHAN_ACTIVE); 5034 } else { 5035 chan->rf_gain = 0x28; 5036 chan->active = htole16(36); 5037 if (sc->rxon.associd) 5038 chan->passive = htole16(88); 5039 else 5040 chan->passive = htole16(120); 5041 hdr->crc_threshold = 0xffff; 5042 } 5043 5044 DPRINTF(sc, IWN_DEBUG_STATE, 5045 "%s: chan %u flags 0x%x rf_gain 0x%x " 5046 "dsp_gain 0x%x active 0x%x passive 0x%x\n", __func__, 5047 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain, 5048 chan->active, chan->passive); 5049 5050 hdr->nchan++; 5051 chan++; 5052 buflen = (uint8_t *)chan - buf; 5053 hdr->len = htole16(buflen); 5054 5055 DPRINTF(sc, IWN_DEBUG_STATE, "sending scan command nchan=%d\n", 5056 hdr->nchan); 5057 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1); 5058 free(buf, M_DEVBUF); 5059 return error; 5060 } 5061 5062 static int 5063 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap) 5064 { 5065 struct iwn_ops *ops = &sc->ops; 5066 struct ifnet *ifp = sc->sc_ifp; 5067 struct ieee80211com *ic = ifp->if_l2com; 5068 struct ieee80211_node *ni = vap->iv_bss; 5069 int error; 5070 5071 /* Update adapter configuration. */ 5072 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 5073 sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 5074 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 5075 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 5076 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 5077 if (ic->ic_flags & IEEE80211_F_SHSLOT) 5078 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 5079 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 5080 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 5081 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 5082 sc->rxon.cck_mask = 0; 5083 sc->rxon.ofdm_mask = 0x15; 5084 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 5085 sc->rxon.cck_mask = 0x03; 5086 sc->rxon.ofdm_mask = 0; 5087 } else { 5088 /* Assume 802.11b/g. */ 5089 sc->rxon.cck_mask = 0x0f; 5090 sc->rxon.ofdm_mask = 0x15; 5091 } 5092 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n", 5093 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask, 5094 sc->rxon.ofdm_mask); 5095 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 5096 if (error != 0) { 5097 device_printf(sc->sc_dev, "%s: RXON command failed, error %d\n", 5098 __func__, error); 5099 return error; 5100 } 5101 5102 /* Configuration has changed, set TX power accordingly. */ 5103 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) { 5104 device_printf(sc->sc_dev, 5105 "%s: could not set TX power, error %d\n", __func__, error); 5106 return error; 5107 } 5108 /* 5109 * Reconfiguring RXON clears the firmware nodes table so we must 5110 * add the broadcast node again. 5111 */ 5112 if ((error = iwn_add_broadcast_node(sc, 1)) != 0) { 5113 device_printf(sc->sc_dev, 5114 "%s: could not add broadcast node, error %d\n", __func__, 5115 error); 5116 return error; 5117 } 5118 return 0; 5119 } 5120 5121 static int 5122 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap) 5123 { 5124 #define MS(v,x) (((v) & x) >> x##_S) 5125 struct iwn_ops *ops = &sc->ops; 5126 struct ifnet *ifp = sc->sc_ifp; 5127 struct ieee80211com *ic = ifp->if_l2com; 5128 struct ieee80211_node *ni = vap->iv_bss; 5129 struct iwn_node_info node; 5130 int error; 5131 5132 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 5133 /* Link LED blinks while monitoring. */ 5134 iwn_set_led(sc, IWN_LED_LINK, 5, 5); 5135 return 0; 5136 } 5137 if ((error = iwn_set_timing(sc, ni)) != 0) { 5138 device_printf(sc->sc_dev, 5139 "%s: could not set timing, error %d\n", __func__, error); 5140 return error; 5141 } 5142 5143 /* Update adapter configuration. */ 5144 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 5145 sc->rxon.associd = htole16(IEEE80211_AID(ni->ni_associd)); 5146 sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 5147 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 5148 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 5149 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 5150 if (ic->ic_flags & IEEE80211_F_SHSLOT) 5151 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 5152 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 5153 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 5154 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 5155 sc->rxon.cck_mask = 0; 5156 sc->rxon.ofdm_mask = 0x15; 5157 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 5158 sc->rxon.cck_mask = 0x03; 5159 sc->rxon.ofdm_mask = 0; 5160 } else { 5161 /* Assume 802.11b/g. */ 5162 sc->rxon.cck_mask = 0x0f; 5163 sc->rxon.ofdm_mask = 0x15; 5164 } 5165 #if 0 /* HT */ 5166 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 5167 sc->rxon.flags &= ~htole32(IWN_RXON_HT); 5168 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 5169 sc->rxon.flags |= htole32(IWN_RXON_HT40U); 5170 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 5171 sc->rxon.flags |= htole32(IWN_RXON_HT40D); 5172 else 5173 sc->rxon.flags |= htole32(IWN_RXON_HT20); 5174 sc->rxon.rxchain = htole16( 5175 IWN_RXCHAIN_VALID(3) 5176 | IWN_RXCHAIN_MIMO_COUNT(3) 5177 | IWN_RXCHAIN_IDLE_COUNT(1) 5178 | IWN_RXCHAIN_MIMO_FORCE); 5179 5180 maxrxampdu = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 5181 ampdudensity = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 5182 } else 5183 maxrxampdu = ampdudensity = 0; 5184 #endif 5185 sc->rxon.filter |= htole32(IWN_FILTER_BSS); 5186 DPRINTF(sc, IWN_DEBUG_STATE, "rxon chan %d flags %x\n", 5187 sc->rxon.chan, sc->rxon.flags); 5188 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 5189 if (error != 0) { 5190 device_printf(sc->sc_dev, 5191 "%s: could not update configuration, error %d\n", __func__, 5192 error); 5193 return error; 5194 } 5195 5196 /* Configuration has changed, set TX power accordingly. */ 5197 if ((error = ops->set_txpower(sc, ni->ni_chan, 1)) != 0) { 5198 device_printf(sc->sc_dev, 5199 "%s: could not set TX power, error %d\n", __func__, error); 5200 return error; 5201 } 5202 5203 /* Fake a join to initialize the TX rate. */ 5204 ((struct iwn_node *)ni)->id = IWN_ID_BSS; 5205 iwn_newassoc(ni, 1); 5206 5207 /* Add BSS node. */ 5208 memset(&node, 0, sizeof node); 5209 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 5210 node.id = IWN_ID_BSS; 5211 #ifdef notyet 5212 node.htflags = htole32(IWN_AMDPU_SIZE_FACTOR(3) | 5213 IWN_AMDPU_DENSITY(5)); /* 2us */ 5214 #endif 5215 DPRINTF(sc, IWN_DEBUG_STATE, "%s: adding BSS node\n", __func__); 5216 error = ops->add_node(sc, &node, 1); 5217 if (error != 0) { 5218 device_printf(sc->sc_dev, 5219 "%s: could not add BSS node, error %d\n", __func__, error); 5220 return error; 5221 } 5222 DPRINTF(sc, IWN_DEBUG_STATE, "%s: setting link quality for node %d\n", 5223 __func__, node.id); 5224 if ((error = iwn_set_link_quality(sc, ni)) != 0) { 5225 device_printf(sc->sc_dev, 5226 "%s: could not setup link quality for node %d, error %d\n", 5227 __func__, node.id, error); 5228 return error; 5229 } 5230 5231 if ((error = iwn_init_sensitivity(sc)) != 0) { 5232 device_printf(sc->sc_dev, 5233 "%s: could not set sensitivity, error %d\n", __func__, 5234 error); 5235 return error; 5236 } 5237 /* Start periodic calibration timer. */ 5238 sc->calib.state = IWN_CALIB_STATE_ASSOC; 5239 sc->calib_cnt = 0; 5240 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 5241 sc); 5242 5243 /* Link LED always on while associated. */ 5244 iwn_set_led(sc, IWN_LED_LINK, 0, 1); 5245 return 0; 5246 #undef MS 5247 } 5248 5249 #if 0 /* HT */ 5250 /* 5251 * This function is called by upper layer when an ADDBA request is received 5252 * from another STA and before the ADDBA response is sent. 5253 */ 5254 static int 5255 iwn_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni, 5256 uint8_t tid) 5257 { 5258 struct ieee80211_rx_ba *ba = &ni->ni_rx_ba[tid]; 5259 struct iwn_softc *sc = ic->ic_softc; 5260 struct iwn_ops *ops = &sc->ops; 5261 struct iwn_node *wn = (void *)ni; 5262 struct iwn_node_info node; 5263 5264 memset(&node, 0, sizeof node); 5265 node.id = wn->id; 5266 node.control = IWN_NODE_UPDATE; 5267 node.flags = IWN_FLAG_SET_ADDBA; 5268 node.addba_tid = tid; 5269 node.addba_ssn = htole16(ba->ba_winstart); 5270 DPRINTF(sc, IWN_DEBUG_RECV, "ADDBA RA=%d TID=%d SSN=%d\n", 5271 wn->id, tid, ba->ba_winstart); 5272 return ops->add_node(sc, &node, 1); 5273 } 5274 5275 /* 5276 * This function is called by upper layer on teardown of an HT-immediate 5277 * Block Ack agreement (eg. uppon receipt of a DELBA frame). 5278 */ 5279 static void 5280 iwn_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, 5281 uint8_t tid) 5282 { 5283 struct iwn_softc *sc = ic->ic_softc; 5284 struct iwn_ops *ops = &sc->ops; 5285 struct iwn_node *wn = (void *)ni; 5286 struct iwn_node_info node; 5287 5288 memset(&node, 0, sizeof node); 5289 node.id = wn->id; 5290 node.control = IWN_NODE_UPDATE; 5291 node.flags = IWN_FLAG_SET_DELBA; 5292 node.delba_tid = tid; 5293 DPRINTF(sc, IWN_DEBUG_RECV, "DELBA RA=%d TID=%d\n", wn->id, tid); 5294 (void)ops->add_node(sc, &node, 1); 5295 } 5296 5297 /* 5298 * This function is called by upper layer when an ADDBA response is received 5299 * from another STA. 5300 */ 5301 static int 5302 iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni, 5303 uint8_t tid) 5304 { 5305 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; 5306 struct iwn_softc *sc = ic->ic_softc; 5307 struct iwn_ops *ops = &sc->ops; 5308 struct iwn_node *wn = (void *)ni; 5309 struct iwn_node_info node; 5310 int error; 5311 5312 /* Enable TX for the specified RA/TID. */ 5313 wn->disable_tid &= ~(1 << tid); 5314 memset(&node, 0, sizeof node); 5315 node.id = wn->id; 5316 node.control = IWN_NODE_UPDATE; 5317 node.flags = IWN_FLAG_SET_DISABLE_TID; 5318 node.disable_tid = htole16(wn->disable_tid); 5319 error = ops->add_node(sc, &node, 1); 5320 if (error != 0) 5321 return error; 5322 5323 if ((error = iwn_nic_lock(sc)) != 0) 5324 return error; 5325 ops->ampdu_tx_start(sc, ni, tid, ba->ba_winstart); 5326 iwn_nic_unlock(sc); 5327 return 0; 5328 } 5329 5330 static void 5331 iwn_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, 5332 uint8_t tid) 5333 { 5334 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; 5335 struct iwn_softc *sc = ic->ic_softc; 5336 struct iwn_ops *ops = &sc->ops; 5337 5338 if (iwn_nic_lock(sc) != 0) 5339 return; 5340 ops->ampdu_tx_stop(sc, tid, ba->ba_winstart); 5341 iwn_nic_unlock(sc); 5342 } 5343 5344 static void 5345 iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni, 5346 uint8_t tid, uint16_t ssn) 5347 { 5348 struct iwn_node *wn = (void *)ni; 5349 int qid = 7 + tid; 5350 5351 /* Stop TX scheduler while we're changing its configuration. */ 5352 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5353 IWN4965_TXQ_STATUS_CHGACT); 5354 5355 /* Assign RA/TID translation to the queue. */ 5356 iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid), 5357 wn->id << 4 | tid); 5358 5359 /* Enable chain-building mode for the queue. */ 5360 iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid); 5361 5362 /* Set starting sequence number from the ADDBA request. */ 5363 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5364 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn); 5365 5366 /* Set scheduler window size. */ 5367 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid), 5368 IWN_SCHED_WINSZ); 5369 /* Set scheduler frame limit. */ 5370 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4, 5371 IWN_SCHED_LIMIT << 16); 5372 5373 /* Enable interrupts for the queue. */ 5374 iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid); 5375 5376 /* Mark the queue as active. */ 5377 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5378 IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA | 5379 iwn_tid2fifo[tid] << 1); 5380 } 5381 5382 static void 5383 iwn4965_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn) 5384 { 5385 int qid = 7 + tid; 5386 5387 /* Stop TX scheduler while we're changing its configuration. */ 5388 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5389 IWN4965_TXQ_STATUS_CHGACT); 5390 5391 /* Set starting sequence number from the ADDBA request. */ 5392 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5393 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn); 5394 5395 /* Disable interrupts for the queue. */ 5396 iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid); 5397 5398 /* Mark the queue as inactive. */ 5399 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5400 IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1); 5401 } 5402 5403 static void 5404 iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni, 5405 uint8_t tid, uint16_t ssn) 5406 { 5407 struct iwn_node *wn = (void *)ni; 5408 int qid = 10 + tid; 5409 5410 /* Stop TX scheduler while we're changing its configuration. */ 5411 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5412 IWN5000_TXQ_STATUS_CHGACT); 5413 5414 /* Assign RA/TID translation to the queue. */ 5415 iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid), 5416 wn->id << 4 | tid); 5417 5418 /* Enable chain-building mode for the queue. */ 5419 iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid); 5420 5421 /* Enable aggregation for the queue. */ 5422 iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid); 5423 5424 /* Set starting sequence number from the ADDBA request. */ 5425 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5426 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn); 5427 5428 /* Set scheduler window size and frame limit. */ 5429 iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4, 5430 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ); 5431 5432 /* Enable interrupts for the queue. */ 5433 iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid); 5434 5435 /* Mark the queue as active. */ 5436 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5437 IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]); 5438 } 5439 5440 static void 5441 iwn5000_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn) 5442 { 5443 int qid = 10 + tid; 5444 5445 /* Stop TX scheduler while we're changing its configuration. */ 5446 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5447 IWN5000_TXQ_STATUS_CHGACT); 5448 5449 /* Disable aggregation for the queue. */ 5450 iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid); 5451 5452 /* Set starting sequence number from the ADDBA request. */ 5453 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5454 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn); 5455 5456 /* Disable interrupts for the queue. */ 5457 iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid); 5458 5459 /* Mark the queue as inactive. */ 5460 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5461 IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]); 5462 } 5463 #endif 5464 5465 /* 5466 * Query calibration tables from the initialization firmware. We do this 5467 * only once at first boot. Called from a process context. 5468 */ 5469 static int 5470 iwn5000_query_calibration(struct iwn_softc *sc) 5471 { 5472 struct iwn5000_calib_config cmd; 5473 int error; 5474 5475 memset(&cmd, 0, sizeof cmd); 5476 cmd.ucode.once.enable = 0xffffffff; 5477 cmd.ucode.once.start = 0xffffffff; 5478 cmd.ucode.once.send = 0xffffffff; 5479 cmd.ucode.flags = 0xffffffff; 5480 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending calibration query\n", 5481 __func__); 5482 error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0); 5483 if (error != 0) 5484 return error; 5485 5486 /* Wait at most two seconds for calibration to complete. */ 5487 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) 5488 error = msleep(sc, &sc->sc_mtx, PCATCH, "iwncal", 2 * hz); 5489 return error; 5490 } 5491 5492 /* 5493 * Send calibration results to the runtime firmware. These results were 5494 * obtained on first boot from the initialization firmware. 5495 */ 5496 static int 5497 iwn5000_send_calibration(struct iwn_softc *sc) 5498 { 5499 int idx, error; 5500 5501 for (idx = 0; idx < 5; idx++) { 5502 if (sc->calibcmd[idx].buf == NULL) 5503 continue; /* No results available. */ 5504 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 5505 "send calibration result idx=%d len=%d\n", idx, 5506 sc->calibcmd[idx].len); 5507 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf, 5508 sc->calibcmd[idx].len, 0); 5509 if (error != 0) { 5510 device_printf(sc->sc_dev, 5511 "%s: could not send calibration result, error %d\n", 5512 __func__, error); 5513 return error; 5514 } 5515 } 5516 return 0; 5517 } 5518 5519 static int 5520 iwn5000_send_wimax_coex(struct iwn_softc *sc) 5521 { 5522 struct iwn5000_wimax_coex wimax; 5523 5524 #ifdef notyet 5525 if (sc->hw_type == IWN_HW_REV_TYPE_6050) { 5526 /* Enable WiMAX coexistence for combo adapters. */ 5527 wimax.flags = 5528 IWN_WIMAX_COEX_ASSOC_WA_UNMASK | 5529 IWN_WIMAX_COEX_UNASSOC_WA_UNMASK | 5530 IWN_WIMAX_COEX_STA_TABLE_VALID | 5531 IWN_WIMAX_COEX_ENABLE; 5532 memcpy(wimax.events, iwn6050_wimax_events, 5533 sizeof iwn6050_wimax_events); 5534 } else 5535 #endif 5536 { 5537 /* Disable WiMAX coexistence. */ 5538 wimax.flags = 0; 5539 memset(wimax.events, 0, sizeof wimax.events); 5540 } 5541 DPRINTF(sc, IWN_DEBUG_RESET, "%s: Configuring WiMAX coexistence\n", 5542 __func__); 5543 return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0); 5544 } 5545 5546 static int 5547 iwn5000_crystal_calib(struct iwn_softc *sc) 5548 { 5549 struct iwn5000_phy_calib_crystal cmd; 5550 5551 memset(&cmd, 0, sizeof cmd); 5552 cmd.code = IWN5000_PHY_CALIB_CRYSTAL; 5553 cmd.ngroups = 1; 5554 cmd.isvalid = 1; 5555 cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff; 5556 cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff; 5557 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "sending crystal calibration %d, %d\n", 5558 cmd.cap_pin[0], cmd.cap_pin[1]); 5559 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0); 5560 } 5561 5562 static int 5563 iwn5000_temp_offset_calib(struct iwn_softc *sc) 5564 { 5565 struct iwn5000_phy_calib_temp_offset cmd; 5566 5567 memset(&cmd, 0, sizeof cmd); 5568 cmd.code = IWN5000_PHY_CALIB_TEMP_OFFSET; 5569 cmd.ngroups = 1; 5570 cmd.isvalid = 1; 5571 if (sc->eeprom_temp != 0) 5572 cmd.offset = htole16(sc->eeprom_temp); 5573 else 5574 cmd.offset = htole16(IWN_DEFAULT_TEMP_OFFSET); 5575 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "setting radio sensor offset to %d\n", 5576 le16toh(cmd.offset)); 5577 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0); 5578 } 5579 5580 /* 5581 * This function is called after the runtime firmware notifies us of its 5582 * readiness (called in a process context). 5583 */ 5584 static int 5585 iwn4965_post_alive(struct iwn_softc *sc) 5586 { 5587 int error, qid; 5588 5589 if ((error = iwn_nic_lock(sc)) != 0) 5590 return error; 5591 5592 /* Clear TX scheduler state in SRAM. */ 5593 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR); 5594 iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0, 5595 IWN4965_SCHED_CTX_LEN / sizeof (uint32_t)); 5596 5597 /* Set physical address of TX scheduler rings (1KB aligned). */ 5598 iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10); 5599 5600 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY); 5601 5602 /* Disable chain mode for all our 16 queues. */ 5603 iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0); 5604 5605 for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) { 5606 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0); 5607 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0); 5608 5609 /* Set scheduler window size. */ 5610 iwn_mem_write(sc, sc->sched_base + 5611 IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ); 5612 /* Set scheduler frame limit. */ 5613 iwn_mem_write(sc, sc->sched_base + 5614 IWN4965_SCHED_QUEUE_OFFSET(qid) + 4, 5615 IWN_SCHED_LIMIT << 16); 5616 } 5617 5618 /* Enable interrupts for all our 16 queues. */ 5619 iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff); 5620 /* Identify TX FIFO rings (0-7). */ 5621 iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff); 5622 5623 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */ 5624 for (qid = 0; qid < 7; qid++) { 5625 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 }; 5626 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5627 IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1); 5628 } 5629 iwn_nic_unlock(sc); 5630 return 0; 5631 } 5632 5633 /* 5634 * This function is called after the initialization or runtime firmware 5635 * notifies us of its readiness (called in a process context). 5636 */ 5637 static int 5638 iwn5000_post_alive(struct iwn_softc *sc) 5639 { 5640 int error, qid; 5641 5642 /* Switch to using ICT interrupt mode. */ 5643 iwn5000_ict_reset(sc); 5644 5645 if ((error = iwn_nic_lock(sc)) != 0) 5646 return error; 5647 5648 /* Clear TX scheduler state in SRAM. */ 5649 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR); 5650 iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0, 5651 IWN5000_SCHED_CTX_LEN / sizeof (uint32_t)); 5652 5653 /* Set physical address of TX scheduler rings (1KB aligned). */ 5654 iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10); 5655 5656 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY); 5657 5658 /* Enable chain mode for all queues, except command queue. */ 5659 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef); 5660 iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0); 5661 5662 for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) { 5663 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0); 5664 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0); 5665 5666 iwn_mem_write(sc, sc->sched_base + 5667 IWN5000_SCHED_QUEUE_OFFSET(qid), 0); 5668 /* Set scheduler window size and frame limit. */ 5669 iwn_mem_write(sc, sc->sched_base + 5670 IWN5000_SCHED_QUEUE_OFFSET(qid) + 4, 5671 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ); 5672 } 5673 5674 /* Enable interrupts for all our 20 queues. */ 5675 iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff); 5676 /* Identify TX FIFO rings (0-7). */ 5677 iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff); 5678 5679 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */ 5680 for (qid = 0; qid < 7; qid++) { 5681 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 }; 5682 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5683 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]); 5684 } 5685 iwn_nic_unlock(sc); 5686 5687 /* Configure WiMAX coexistence for combo adapters. */ 5688 error = iwn5000_send_wimax_coex(sc); 5689 if (error != 0) { 5690 device_printf(sc->sc_dev, 5691 "%s: could not configure WiMAX coexistence, error %d\n", 5692 __func__, error); 5693 return error; 5694 } 5695 if (sc->hw_type != IWN_HW_REV_TYPE_5150) { 5696 /* Perform crystal calibration. */ 5697 error = iwn5000_crystal_calib(sc); 5698 if (error != 0) { 5699 device_printf(sc->sc_dev, 5700 "%s: crystal calibration failed, error %d\n", 5701 __func__, error); 5702 return error; 5703 } 5704 } 5705 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) { 5706 /* Query calibration from the initialization firmware. */ 5707 if ((error = iwn5000_query_calibration(sc)) != 0) { 5708 device_printf(sc->sc_dev, 5709 "%s: could not query calibration, error %d\n", 5710 __func__, error); 5711 return error; 5712 } 5713 /* 5714 * We have the calibration results now, reboot with the 5715 * runtime firmware (call ourselves recursively!) 5716 */ 5717 iwn_hw_stop(sc); 5718 error = iwn_hw_init(sc); 5719 } else { 5720 /* Send calibration results to runtime firmware. */ 5721 error = iwn5000_send_calibration(sc); 5722 } 5723 return error; 5724 } 5725 5726 /* 5727 * The firmware boot code is small and is intended to be copied directly into 5728 * the NIC internal memory (no DMA transfer). 5729 */ 5730 static int 5731 iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size) 5732 { 5733 int error, ntries; 5734 5735 size /= sizeof (uint32_t); 5736 5737 if ((error = iwn_nic_lock(sc)) != 0) 5738 return error; 5739 5740 /* Copy microcode image into NIC memory. */ 5741 iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE, 5742 (const uint32_t *)ucode, size); 5743 5744 iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0); 5745 iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE); 5746 iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size); 5747 5748 /* Start boot load now. */ 5749 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START); 5750 5751 /* Wait for transfer to complete. */ 5752 for (ntries = 0; ntries < 1000; ntries++) { 5753 if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) & 5754 IWN_BSM_WR_CTRL_START)) 5755 break; 5756 DELAY(10); 5757 } 5758 if (ntries == 1000) { 5759 device_printf(sc->sc_dev, "%s: could not load boot firmware\n", 5760 __func__); 5761 iwn_nic_unlock(sc); 5762 return ETIMEDOUT; 5763 } 5764 5765 /* Enable boot after power up. */ 5766 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN); 5767 5768 iwn_nic_unlock(sc); 5769 return 0; 5770 } 5771 5772 static int 5773 iwn4965_load_firmware(struct iwn_softc *sc) 5774 { 5775 struct iwn_fw_info *fw = &sc->fw; 5776 struct iwn_dma_info *dma = &sc->fw_dma; 5777 int error; 5778 5779 /* Copy initialization sections into pre-allocated DMA-safe memory. */ 5780 memcpy(dma->vaddr, fw->init.data, fw->init.datasz); 5781 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 5782 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ, 5783 fw->init.text, fw->init.textsz); 5784 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 5785 5786 /* Tell adapter where to find initialization sections. */ 5787 if ((error = iwn_nic_lock(sc)) != 0) 5788 return error; 5789 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4); 5790 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz); 5791 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR, 5792 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4); 5793 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz); 5794 iwn_nic_unlock(sc); 5795 5796 /* Load firmware boot code. */ 5797 error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz); 5798 if (error != 0) { 5799 device_printf(sc->sc_dev, "%s: could not load boot firmware\n", 5800 __func__); 5801 return error; 5802 } 5803 /* Now press "execute". */ 5804 IWN_WRITE(sc, IWN_RESET, 0); 5805 5806 /* Wait at most one second for first alive notification. */ 5807 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) { 5808 device_printf(sc->sc_dev, 5809 "%s: timeout waiting for adapter to initialize, error %d\n", 5810 __func__, error); 5811 return error; 5812 } 5813 5814 /* Retrieve current temperature for initial TX power calibration. */ 5815 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz; 5816 sc->temp = iwn4965_get_temperature(sc); 5817 5818 /* Copy runtime sections into pre-allocated DMA-safe memory. */ 5819 memcpy(dma->vaddr, fw->main.data, fw->main.datasz); 5820 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 5821 memcpy(dma->vaddr + IWN4965_FW_DATA_MAXSZ, 5822 fw->main.text, fw->main.textsz); 5823 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 5824 5825 /* Tell adapter where to find runtime sections. */ 5826 if ((error = iwn_nic_lock(sc)) != 0) 5827 return error; 5828 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4); 5829 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz); 5830 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR, 5831 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4); 5832 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, 5833 IWN_FW_UPDATED | fw->main.textsz); 5834 iwn_nic_unlock(sc); 5835 5836 return 0; 5837 } 5838 5839 static int 5840 iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst, 5841 const uint8_t *section, int size) 5842 { 5843 struct iwn_dma_info *dma = &sc->fw_dma; 5844 int error; 5845 5846 /* Copy firmware section into pre-allocated DMA-safe memory. */ 5847 memcpy(dma->vaddr, section, size); 5848 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 5849 5850 if ((error = iwn_nic_lock(sc)) != 0) 5851 return error; 5852 5853 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL), 5854 IWN_FH_TX_CONFIG_DMA_PAUSE); 5855 5856 IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst); 5857 IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL), 5858 IWN_LOADDR(dma->paddr)); 5859 IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL), 5860 IWN_HIADDR(dma->paddr) << 28 | size); 5861 IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL), 5862 IWN_FH_TXBUF_STATUS_TBNUM(1) | 5863 IWN_FH_TXBUF_STATUS_TBIDX(1) | 5864 IWN_FH_TXBUF_STATUS_TFBD_VALID); 5865 5866 /* Kick Flow Handler to start DMA transfer. */ 5867 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL), 5868 IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD); 5869 5870 iwn_nic_unlock(sc); 5871 5872 /* Wait at most five seconds for FH DMA transfer to complete. */ 5873 return msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", 5 * hz); 5874 } 5875 5876 static int 5877 iwn5000_load_firmware(struct iwn_softc *sc) 5878 { 5879 struct iwn_fw_part *fw; 5880 int error; 5881 5882 /* Load the initialization firmware on first boot only. */ 5883 fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ? 5884 &sc->fw.main : &sc->fw.init; 5885 5886 error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE, 5887 fw->text, fw->textsz); 5888 if (error != 0) { 5889 device_printf(sc->sc_dev, 5890 "%s: could not load firmware %s section, error %d\n", 5891 __func__, ".text", error); 5892 return error; 5893 } 5894 error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE, 5895 fw->data, fw->datasz); 5896 if (error != 0) { 5897 device_printf(sc->sc_dev, 5898 "%s: could not load firmware %s section, error %d\n", 5899 __func__, ".data", error); 5900 return error; 5901 } 5902 5903 /* Now press "execute". */ 5904 IWN_WRITE(sc, IWN_RESET, 0); 5905 return 0; 5906 } 5907 5908 /* 5909 * Extract text and data sections from a legacy firmware image. 5910 */ 5911 static int 5912 iwn_read_firmware_leg(struct iwn_softc *sc, struct iwn_fw_info *fw) 5913 { 5914 const uint32_t *ptr; 5915 size_t hdrlen = 24; 5916 uint32_t rev; 5917 5918 ptr = (const uint32_t *)fw->data; 5919 rev = le32toh(*ptr++); 5920 5921 /* Check firmware API version. */ 5922 if (IWN_FW_API(rev) <= 1) { 5923 device_printf(sc->sc_dev, 5924 "%s: bad firmware, need API version >=2\n", __func__); 5925 return EINVAL; 5926 } 5927 if (IWN_FW_API(rev) >= 3) { 5928 /* Skip build number (version 2 header). */ 5929 hdrlen += 4; 5930 ptr++; 5931 } 5932 if (fw->size < hdrlen) { 5933 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n", 5934 __func__, fw->size); 5935 return EINVAL; 5936 } 5937 fw->main.textsz = le32toh(*ptr++); 5938 fw->main.datasz = le32toh(*ptr++); 5939 fw->init.textsz = le32toh(*ptr++); 5940 fw->init.datasz = le32toh(*ptr++); 5941 fw->boot.textsz = le32toh(*ptr++); 5942 5943 /* Check that all firmware sections fit. */ 5944 if (fw->size < hdrlen + fw->main.textsz + fw->main.datasz + 5945 fw->init.textsz + fw->init.datasz + fw->boot.textsz) { 5946 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n", 5947 __func__, fw->size); 5948 return EINVAL; 5949 } 5950 5951 /* Get pointers to firmware sections. */ 5952 fw->main.text = (const uint8_t *)ptr; 5953 fw->main.data = fw->main.text + fw->main.textsz; 5954 fw->init.text = fw->main.data + fw->main.datasz; 5955 fw->init.data = fw->init.text + fw->init.textsz; 5956 fw->boot.text = fw->init.data + fw->init.datasz; 5957 return 0; 5958 } 5959 5960 /* 5961 * Extract text and data sections from a TLV firmware image. 5962 */ 5963 static int 5964 iwn_read_firmware_tlv(struct iwn_softc *sc, struct iwn_fw_info *fw, 5965 uint16_t alt) 5966 { 5967 const struct iwn_fw_tlv_hdr *hdr; 5968 const struct iwn_fw_tlv *tlv; 5969 const uint8_t *ptr, *end; 5970 uint64_t altmask; 5971 uint32_t len, tmp; 5972 5973 if (fw->size < sizeof (*hdr)) { 5974 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n", 5975 __func__, fw->size); 5976 return EINVAL; 5977 } 5978 hdr = (const struct iwn_fw_tlv_hdr *)fw->data; 5979 if (hdr->signature != htole32(IWN_FW_SIGNATURE)) { 5980 device_printf(sc->sc_dev, "%s: bad firmware signature 0x%08x\n", 5981 __func__, le32toh(hdr->signature)); 5982 return EINVAL; 5983 } 5984 DPRINTF(sc, IWN_DEBUG_RESET, "FW: \"%.64s\", build 0x%x\n", hdr->descr, 5985 le32toh(hdr->build)); 5986 5987 /* 5988 * Select the closest supported alternative that is less than 5989 * or equal to the specified one. 5990 */ 5991 altmask = le64toh(hdr->altmask); 5992 while (alt > 0 && !(altmask & (1ULL << alt))) 5993 alt--; /* Downgrade. */ 5994 DPRINTF(sc, IWN_DEBUG_RESET, "using alternative %d\n", alt); 5995 5996 ptr = (const uint8_t *)(hdr + 1); 5997 end = (const uint8_t *)(fw->data + fw->size); 5998 5999 /* Parse type-length-value fields. */ 6000 while (ptr + sizeof (*tlv) <= end) { 6001 tlv = (const struct iwn_fw_tlv *)ptr; 6002 len = le32toh(tlv->len); 6003 6004 ptr += sizeof (*tlv); 6005 if (ptr + len > end) { 6006 device_printf(sc->sc_dev, 6007 "%s: firmware too short: %zu bytes\n", __func__, 6008 fw->size); 6009 return EINVAL; 6010 } 6011 /* Skip other alternatives. */ 6012 if (tlv->alt != 0 && tlv->alt != htole16(alt)) 6013 goto next; 6014 6015 switch (le16toh(tlv->type)) { 6016 case IWN_FW_TLV_MAIN_TEXT: 6017 fw->main.text = ptr; 6018 fw->main.textsz = len; 6019 break; 6020 case IWN_FW_TLV_MAIN_DATA: 6021 fw->main.data = ptr; 6022 fw->main.datasz = len; 6023 break; 6024 case IWN_FW_TLV_INIT_TEXT: 6025 fw->init.text = ptr; 6026 fw->init.textsz = len; 6027 break; 6028 case IWN_FW_TLV_INIT_DATA: 6029 fw->init.data = ptr; 6030 fw->init.datasz = len; 6031 break; 6032 case IWN_FW_TLV_BOOT_TEXT: 6033 fw->boot.text = ptr; 6034 fw->boot.textsz = len; 6035 break; 6036 case IWN_FW_TLV_ENH_SENS: 6037 if (!len) 6038 sc->sc_flags |= IWN_FLAG_ENH_SENS; 6039 break; 6040 case IWN_FW_TLV_PHY_CALIB: 6041 tmp = htole32(*ptr); 6042 if (tmp < 253) { 6043 sc->reset_noise_gain = tmp; 6044 sc->noise_gain = tmp + 1; 6045 } 6046 break; 6047 default: 6048 DPRINTF(sc, IWN_DEBUG_RESET, 6049 "TLV type %d not handled\n", le16toh(tlv->type)); 6050 break; 6051 } 6052 next: /* TLV fields are 32-bit aligned. */ 6053 ptr += (len + 3) & ~3; 6054 } 6055 return 0; 6056 } 6057 6058 static int 6059 iwn_read_firmware(struct iwn_softc *sc) 6060 { 6061 struct iwn_fw_info *fw = &sc->fw; 6062 int error; 6063 6064 IWN_UNLOCK(sc); 6065 6066 memset(fw, 0, sizeof (*fw)); 6067 6068 /* Read firmware image from filesystem. */ 6069 sc->fw_fp = firmware_get(sc->fwname); 6070 if (sc->fw_fp == NULL) { 6071 device_printf(sc->sc_dev, "%s: could not read firmware %s\n", 6072 __func__, sc->fwname); 6073 IWN_LOCK(sc); 6074 return EINVAL; 6075 } 6076 IWN_LOCK(sc); 6077 6078 fw->size = sc->fw_fp->datasize; 6079 fw->data = (const uint8_t *)sc->fw_fp->data; 6080 if (fw->size < sizeof (uint32_t)) { 6081 device_printf(sc->sc_dev, "%s: firmware too short: %zu bytes\n", 6082 __func__, fw->size); 6083 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 6084 sc->fw_fp = NULL; 6085 return EINVAL; 6086 } 6087 6088 /* Retrieve text and data sections. */ 6089 if (*(const uint32_t *)fw->data != 0) /* Legacy image. */ 6090 error = iwn_read_firmware_leg(sc, fw); 6091 else 6092 error = iwn_read_firmware_tlv(sc, fw, 1); 6093 if (error != 0) { 6094 device_printf(sc->sc_dev, 6095 "%s: could not read firmware sections, error %d\n", 6096 __func__, error); 6097 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 6098 sc->fw_fp = NULL; 6099 return error; 6100 } 6101 6102 /* Make sure text and data sections fit in hardware memory. */ 6103 if (fw->main.textsz > sc->fw_text_maxsz || 6104 fw->main.datasz > sc->fw_data_maxsz || 6105 fw->init.textsz > sc->fw_text_maxsz || 6106 fw->init.datasz > sc->fw_data_maxsz || 6107 fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ || 6108 (fw->boot.textsz & 3) != 0) { 6109 device_printf(sc->sc_dev, "%s: firmware sections too large\n", 6110 __func__); 6111 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 6112 sc->fw_fp = NULL; 6113 return EINVAL; 6114 } 6115 6116 /* We can proceed with loading the firmware. */ 6117 return 0; 6118 } 6119 6120 static int 6121 iwn_clock_wait(struct iwn_softc *sc) 6122 { 6123 int ntries; 6124 6125 /* Set "initialization complete" bit. */ 6126 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE); 6127 6128 /* Wait for clock stabilization. */ 6129 for (ntries = 0; ntries < 2500; ntries++) { 6130 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY) 6131 return 0; 6132 DELAY(10); 6133 } 6134 device_printf(sc->sc_dev, 6135 "%s: timeout waiting for clock stabilization\n", __func__); 6136 return ETIMEDOUT; 6137 } 6138 6139 static int 6140 iwn_apm_init(struct iwn_softc *sc) 6141 { 6142 uint32_t reg; 6143 int error; 6144 6145 /* Disable L0s exit timer (NMI bug workaround). */ 6146 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER); 6147 /* Don't wait for ICH L0s (ICH bug workaround). */ 6148 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX); 6149 6150 /* Set FH wait threshold to max (HW bug under stress workaround). */ 6151 IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000); 6152 6153 /* Enable HAP INTA to move adapter from L1a to L0s. */ 6154 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A); 6155 6156 /* Retrieve PCIe Active State Power Management (ASPM). */ 6157 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1); 6158 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */ 6159 if (reg & 0x02) /* L1 Entry enabled. */ 6160 IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA); 6161 else 6162 IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA); 6163 6164 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 6165 sc->hw_type <= IWN_HW_REV_TYPE_1000) 6166 IWN_SETBITS(sc, IWN_ANA_PLL, IWN_ANA_PLL_INIT); 6167 6168 /* Wait for clock stabilization before accessing prph. */ 6169 if ((error = iwn_clock_wait(sc)) != 0) 6170 return error; 6171 6172 if ((error = iwn_nic_lock(sc)) != 0) 6173 return error; 6174 if (sc->hw_type == IWN_HW_REV_TYPE_4965) { 6175 /* Enable DMA and BSM (Bootstrap State Machine). */ 6176 iwn_prph_write(sc, IWN_APMG_CLK_EN, 6177 IWN_APMG_CLK_CTRL_DMA_CLK_RQT | 6178 IWN_APMG_CLK_CTRL_BSM_CLK_RQT); 6179 } else { 6180 /* Enable DMA. */ 6181 iwn_prph_write(sc, IWN_APMG_CLK_EN, 6182 IWN_APMG_CLK_CTRL_DMA_CLK_RQT); 6183 } 6184 DELAY(20); 6185 /* Disable L1-Active. */ 6186 iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS); 6187 iwn_nic_unlock(sc); 6188 6189 return 0; 6190 } 6191 6192 static void 6193 iwn_apm_stop_master(struct iwn_softc *sc) 6194 { 6195 int ntries; 6196 6197 /* Stop busmaster DMA activity. */ 6198 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER); 6199 for (ntries = 0; ntries < 100; ntries++) { 6200 if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED) 6201 return; 6202 DELAY(10); 6203 } 6204 device_printf(sc->sc_dev, "%s: timeout waiting for master\n", __func__); 6205 } 6206 6207 static void 6208 iwn_apm_stop(struct iwn_softc *sc) 6209 { 6210 iwn_apm_stop_master(sc); 6211 6212 /* Reset the entire device. */ 6213 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW); 6214 DELAY(10); 6215 /* Clear "initialization complete" bit. */ 6216 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE); 6217 } 6218 6219 static int 6220 iwn4965_nic_config(struct iwn_softc *sc) 6221 { 6222 if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) { 6223 /* 6224 * I don't believe this to be correct but this is what the 6225 * vendor driver is doing. Probably the bits should not be 6226 * shifted in IWN_RFCFG_*. 6227 */ 6228 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6229 IWN_RFCFG_TYPE(sc->rfcfg) | 6230 IWN_RFCFG_STEP(sc->rfcfg) | 6231 IWN_RFCFG_DASH(sc->rfcfg)); 6232 } 6233 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6234 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI); 6235 return 0; 6236 } 6237 6238 static int 6239 iwn5000_nic_config(struct iwn_softc *sc) 6240 { 6241 uint32_t tmp; 6242 int error; 6243 6244 if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) { 6245 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6246 IWN_RFCFG_TYPE(sc->rfcfg) | 6247 IWN_RFCFG_STEP(sc->rfcfg) | 6248 IWN_RFCFG_DASH(sc->rfcfg)); 6249 } 6250 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6251 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI); 6252 6253 if ((error = iwn_nic_lock(sc)) != 0) 6254 return error; 6255 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS); 6256 6257 if (sc->hw_type == IWN_HW_REV_TYPE_1000) { 6258 /* 6259 * Select first Switching Voltage Regulator (1.32V) to 6260 * solve a stability issue related to noisy DC2DC line 6261 * in the silicon of 1000 Series. 6262 */ 6263 tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR); 6264 tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK; 6265 tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32; 6266 iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp); 6267 } 6268 iwn_nic_unlock(sc); 6269 6270 if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) { 6271 /* Use internal power amplifier only. */ 6272 IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA); 6273 } 6274 if ((sc->hw_type == IWN_HW_REV_TYPE_6050 || 6275 sc->hw_type == IWN_HW_REV_TYPE_6005) && sc->calib_ver >= 6) { 6276 /* Indicate that ROM calibration version is >=6. */ 6277 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6); 6278 } 6279 if (sc->hw_type == IWN_HW_REV_TYPE_6005) 6280 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_6050_1X2); 6281 return 0; 6282 } 6283 6284 /* 6285 * Take NIC ownership over Intel Active Management Technology (AMT). 6286 */ 6287 static int 6288 iwn_hw_prepare(struct iwn_softc *sc) 6289 { 6290 int ntries; 6291 6292 /* Check if hardware is ready. */ 6293 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY); 6294 for (ntries = 0; ntries < 5; ntries++) { 6295 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 6296 IWN_HW_IF_CONFIG_NIC_READY) 6297 return 0; 6298 DELAY(10); 6299 } 6300 6301 /* Hardware not ready, force into ready state. */ 6302 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE); 6303 for (ntries = 0; ntries < 15000; ntries++) { 6304 if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) & 6305 IWN_HW_IF_CONFIG_PREPARE_DONE)) 6306 break; 6307 DELAY(10); 6308 } 6309 if (ntries == 15000) 6310 return ETIMEDOUT; 6311 6312 /* Hardware should be ready now. */ 6313 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY); 6314 for (ntries = 0; ntries < 5; ntries++) { 6315 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 6316 IWN_HW_IF_CONFIG_NIC_READY) 6317 return 0; 6318 DELAY(10); 6319 } 6320 return ETIMEDOUT; 6321 } 6322 6323 static int 6324 iwn_hw_init(struct iwn_softc *sc) 6325 { 6326 struct iwn_ops *ops = &sc->ops; 6327 int error, chnl, qid; 6328 6329 /* Clear pending interrupts. */ 6330 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6331 6332 if ((error = iwn_apm_init(sc)) != 0) { 6333 device_printf(sc->sc_dev, 6334 "%s: could not power ON adapter, error %d\n", __func__, 6335 error); 6336 return error; 6337 } 6338 6339 /* Select VMAIN power source. */ 6340 if ((error = iwn_nic_lock(sc)) != 0) 6341 return error; 6342 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK); 6343 iwn_nic_unlock(sc); 6344 6345 /* Perform adapter-specific initialization. */ 6346 if ((error = ops->nic_config(sc)) != 0) 6347 return error; 6348 6349 /* Initialize RX ring. */ 6350 if ((error = iwn_nic_lock(sc)) != 0) 6351 return error; 6352 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 6353 IWN_WRITE(sc, IWN_FH_RX_WPTR, 0); 6354 /* Set physical address of RX ring (256-byte aligned). */ 6355 IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8); 6356 /* Set physical address of RX status (16-byte aligned). */ 6357 IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4); 6358 /* Enable RX. */ 6359 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 6360 IWN_FH_RX_CONFIG_ENA | 6361 IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */ 6362 IWN_FH_RX_CONFIG_IRQ_DST_HOST | 6363 IWN_FH_RX_CONFIG_SINGLE_FRAME | 6364 IWN_FH_RX_CONFIG_RB_TIMEOUT(0) | 6365 IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG)); 6366 iwn_nic_unlock(sc); 6367 IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7); 6368 6369 if ((error = iwn_nic_lock(sc)) != 0) 6370 return error; 6371 6372 /* Initialize TX scheduler. */ 6373 iwn_prph_write(sc, sc->sched_txfact_addr, 0); 6374 6375 /* Set physical address of "keep warm" page (16-byte aligned). */ 6376 IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4); 6377 6378 /* Initialize TX rings. */ 6379 for (qid = 0; qid < sc->ntxqs; qid++) { 6380 struct iwn_tx_ring *txq = &sc->txq[qid]; 6381 6382 /* Set physical address of TX ring (256-byte aligned). */ 6383 IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid), 6384 txq->desc_dma.paddr >> 8); 6385 } 6386 iwn_nic_unlock(sc); 6387 6388 /* Enable DMA channels. */ 6389 for (chnl = 0; chnl < sc->ndmachnls; chnl++) { 6390 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 6391 IWN_FH_TX_CONFIG_DMA_ENA | 6392 IWN_FH_TX_CONFIG_DMA_CREDIT_ENA); 6393 } 6394 6395 /* Clear "radio off" and "commands blocked" bits. */ 6396 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6397 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED); 6398 6399 /* Clear pending interrupts. */ 6400 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6401 /* Enable interrupt coalescing. */ 6402 IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8); 6403 /* Enable interrupts. */ 6404 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 6405 6406 /* _Really_ make sure "radio off" bit is cleared! */ 6407 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6408 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6409 6410 /* Enable shadow registers. */ 6411 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 6412 IWN_SETBITS(sc, IWN_SHADOW_REG_CTRL, 0x800fffff); 6413 6414 if ((error = ops->load_firmware(sc)) != 0) { 6415 device_printf(sc->sc_dev, 6416 "%s: could not load firmware, error %d\n", __func__, 6417 error); 6418 return error; 6419 } 6420 /* Wait at most one second for firmware alive notification. */ 6421 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz)) != 0) { 6422 device_printf(sc->sc_dev, 6423 "%s: timeout waiting for adapter to initialize, error %d\n", 6424 __func__, error); 6425 return error; 6426 } 6427 /* Do post-firmware initialization. */ 6428 return ops->post_alive(sc); 6429 } 6430 6431 static void 6432 iwn_hw_stop(struct iwn_softc *sc) 6433 { 6434 int chnl, qid, ntries; 6435 6436 IWN_WRITE(sc, IWN_RESET, IWN_RESET_NEVO); 6437 6438 /* Disable interrupts. */ 6439 IWN_WRITE(sc, IWN_INT_MASK, 0); 6440 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6441 IWN_WRITE(sc, IWN_FH_INT, 0xffffffff); 6442 sc->sc_flags &= ~IWN_FLAG_USE_ICT; 6443 6444 /* Make sure we no longer hold the NIC lock. */ 6445 iwn_nic_unlock(sc); 6446 6447 /* Stop TX scheduler. */ 6448 iwn_prph_write(sc, sc->sched_txfact_addr, 0); 6449 6450 /* Stop all DMA channels. */ 6451 if (iwn_nic_lock(sc) == 0) { 6452 for (chnl = 0; chnl < sc->ndmachnls; chnl++) { 6453 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 0); 6454 for (ntries = 0; ntries < 200; ntries++) { 6455 if (IWN_READ(sc, IWN_FH_TX_STATUS) & 6456 IWN_FH_TX_STATUS_IDLE(chnl)) 6457 break; 6458 DELAY(10); 6459 } 6460 } 6461 iwn_nic_unlock(sc); 6462 } 6463 6464 /* Stop RX ring. */ 6465 iwn_reset_rx_ring(sc, &sc->rxq); 6466 6467 /* Reset all TX rings. */ 6468 for (qid = 0; qid < sc->ntxqs; qid++) 6469 iwn_reset_tx_ring(sc, &sc->txq[qid]); 6470 6471 if (iwn_nic_lock(sc) == 0) { 6472 iwn_prph_write(sc, IWN_APMG_CLK_DIS, 6473 IWN_APMG_CLK_CTRL_DMA_CLK_RQT); 6474 iwn_nic_unlock(sc); 6475 } 6476 DELAY(5); 6477 /* Power OFF adapter. */ 6478 iwn_apm_stop(sc); 6479 } 6480 6481 static void 6482 iwn_radio_on(void *arg0, int pending) 6483 { 6484 struct iwn_softc *sc = arg0; 6485 struct ifnet *ifp = sc->sc_ifp; 6486 struct ieee80211com *ic = ifp->if_l2com; 6487 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 6488 6489 if (vap != NULL) { 6490 iwn_init(sc); 6491 ieee80211_init(vap); 6492 } 6493 } 6494 6495 static void 6496 iwn_radio_off(void *arg0, int pending) 6497 { 6498 struct iwn_softc *sc = arg0; 6499 struct ifnet *ifp = sc->sc_ifp; 6500 struct ieee80211com *ic = ifp->if_l2com; 6501 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 6502 6503 iwn_stop(sc); 6504 if (vap != NULL) 6505 ieee80211_stop(vap); 6506 6507 /* Enable interrupts to get RF toggle notification. */ 6508 IWN_LOCK(sc); 6509 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6510 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 6511 IWN_UNLOCK(sc); 6512 } 6513 6514 static void 6515 iwn_init_locked(struct iwn_softc *sc) 6516 { 6517 struct ifnet *ifp = sc->sc_ifp; 6518 int error; 6519 6520 IWN_LOCK_ASSERT(sc); 6521 6522 if ((error = iwn_hw_prepare(sc)) != 0) { 6523 device_printf(sc->sc_dev, "%s: hardware not ready, error %d\n", 6524 __func__, error); 6525 goto fail; 6526 } 6527 6528 /* Initialize interrupt mask to default value. */ 6529 sc->int_mask = IWN_INT_MASK_DEF; 6530 sc->sc_flags &= ~IWN_FLAG_USE_ICT; 6531 6532 /* Check that the radio is not disabled by hardware switch. */ 6533 if (!(IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)) { 6534 device_printf(sc->sc_dev, 6535 "radio is disabled by hardware switch\n"); 6536 /* Enable interrupts to get RF toggle notifications. */ 6537 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6538 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 6539 return; 6540 } 6541 6542 /* Read firmware images from the filesystem. */ 6543 if ((error = iwn_read_firmware(sc)) != 0) { 6544 device_printf(sc->sc_dev, 6545 "%s: could not read firmware, error %d\n", __func__, 6546 error); 6547 goto fail; 6548 } 6549 6550 /* Initialize hardware and upload firmware. */ 6551 error = iwn_hw_init(sc); 6552 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 6553 sc->fw_fp = NULL; 6554 if (error != 0) { 6555 device_printf(sc->sc_dev, 6556 "%s: could not initialize hardware, error %d\n", __func__, 6557 error); 6558 goto fail; 6559 } 6560 6561 /* Configure adapter now that it is ready. */ 6562 if ((error = iwn_config(sc)) != 0) { 6563 device_printf(sc->sc_dev, 6564 "%s: could not configure device, error %d\n", __func__, 6565 error); 6566 goto fail; 6567 } 6568 6569 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 6570 ifp->if_drv_flags |= IFF_DRV_RUNNING; 6571 6572 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc); 6573 return; 6574 6575 fail: iwn_stop_locked(sc); 6576 } 6577 6578 static void 6579 iwn_init(void *arg) 6580 { 6581 struct iwn_softc *sc = arg; 6582 struct ifnet *ifp = sc->sc_ifp; 6583 struct ieee80211com *ic = ifp->if_l2com; 6584 6585 IWN_LOCK(sc); 6586 iwn_init_locked(sc); 6587 IWN_UNLOCK(sc); 6588 6589 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 6590 ieee80211_start_all(ic); 6591 } 6592 6593 static void 6594 iwn_stop_locked(struct iwn_softc *sc) 6595 { 6596 struct ifnet *ifp = sc->sc_ifp; 6597 6598 IWN_LOCK_ASSERT(sc); 6599 6600 sc->sc_tx_timer = 0; 6601 callout_stop(&sc->watchdog_to); 6602 callout_stop(&sc->calib_to); 6603 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 6604 6605 /* Power OFF hardware. */ 6606 iwn_hw_stop(sc); 6607 } 6608 6609 static void 6610 iwn_stop(struct iwn_softc *sc) 6611 { 6612 IWN_LOCK(sc); 6613 iwn_stop_locked(sc); 6614 IWN_UNLOCK(sc); 6615 } 6616 6617 /* 6618 * Callback from net80211 to start a scan. 6619 */ 6620 static void 6621 iwn_scan_start(struct ieee80211com *ic) 6622 { 6623 struct ifnet *ifp = ic->ic_ifp; 6624 struct iwn_softc *sc = ifp->if_softc; 6625 6626 IWN_LOCK(sc); 6627 /* make the link LED blink while we're scanning */ 6628 iwn_set_led(sc, IWN_LED_LINK, 20, 2); 6629 IWN_UNLOCK(sc); 6630 } 6631 6632 /* 6633 * Callback from net80211 to terminate a scan. 6634 */ 6635 static void 6636 iwn_scan_end(struct ieee80211com *ic) 6637 { 6638 struct ifnet *ifp = ic->ic_ifp; 6639 struct iwn_softc *sc = ifp->if_softc; 6640 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 6641 6642 IWN_LOCK(sc); 6643 if (vap->iv_state == IEEE80211_S_RUN) { 6644 /* Set link LED to ON status if we are associated */ 6645 iwn_set_led(sc, IWN_LED_LINK, 0, 1); 6646 } 6647 IWN_UNLOCK(sc); 6648 } 6649 6650 /* 6651 * Callback from net80211 to force a channel change. 6652 */ 6653 static void 6654 iwn_set_channel(struct ieee80211com *ic) 6655 { 6656 const struct ieee80211_channel *c = ic->ic_curchan; 6657 struct ifnet *ifp = ic->ic_ifp; 6658 struct iwn_softc *sc = ifp->if_softc; 6659 int error; 6660 6661 IWN_LOCK(sc); 6662 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq); 6663 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags); 6664 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq); 6665 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags); 6666 6667 /* 6668 * Only need to set the channel in Monitor mode. AP scanning and auth 6669 * are already taken care of by their respective firmware commands. 6670 */ 6671 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 6672 error = iwn_config(sc); 6673 if (error != 0) 6674 device_printf(sc->sc_dev, 6675 "%s: error %d settting channel\n", __func__, error); 6676 } 6677 IWN_UNLOCK(sc); 6678 } 6679 6680 /* 6681 * Callback from net80211 to start scanning of the current channel. 6682 */ 6683 static void 6684 iwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 6685 { 6686 struct ieee80211vap *vap = ss->ss_vap; 6687 struct iwn_softc *sc = vap->iv_ic->ic_ifp->if_softc; 6688 int error; 6689 6690 IWN_LOCK(sc); 6691 error = iwn_scan(sc); 6692 IWN_UNLOCK(sc); 6693 if (error != 0) 6694 ieee80211_cancel_scan(vap); 6695 } 6696 6697 /* 6698 * Callback from net80211 to handle the minimum dwell time being met. 6699 * The intent is to terminate the scan but we just let the firmware 6700 * notify us when it's finished as we have no safe way to abort it. 6701 */ 6702 static void 6703 iwn_scan_mindwell(struct ieee80211_scan_state *ss) 6704 { 6705 /* NB: don't try to abort scan; wait for firmware to finish */ 6706 } 6707 6708 static void 6709 iwn_hw_reset(void *arg0, int pending) 6710 { 6711 struct iwn_softc *sc = arg0; 6712 struct ifnet *ifp = sc->sc_ifp; 6713 struct ieee80211com *ic = ifp->if_l2com; 6714 6715 iwn_stop(sc); 6716 iwn_init(sc); 6717 ieee80211_notify_radio(ic, 1); 6718 }
Cache object: 29b882d1a3923bc6ed0fca03ff8646a9
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]