Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/iwn/if_iwn.c
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1 /*- 2 * Copyright (c) 2007-2009 Damien Bergamini <damien.bergamini@free.fr> 3 * Copyright (c) 2008 Benjamin Close <benjsc@FreeBSD.org> 4 * Copyright (c) 2008 Sam Leffler, Errno Consulting 5 * Copyright (c) 2011 Intel Corporation 6 * Copyright (c) 2013 Cedric GROSS <c.gross@kreiz-it.fr> 7 * Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* 23 * Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network 24 * adapters. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD: releng/12.0/sys/dev/iwn/if_iwn.c 338949 2018-09-26 17:12:30Z imp $"); 29 30 #include "opt_wlan.h" 31 #include "opt_iwn.h" 32 33 #include <sys/param.h> 34 #include <sys/sockio.h> 35 #include <sys/sysctl.h> 36 #include <sys/mbuf.h> 37 #include <sys/kernel.h> 38 #include <sys/socket.h> 39 #include <sys/systm.h> 40 #include <sys/malloc.h> 41 #include <sys/bus.h> 42 #include <sys/conf.h> 43 #include <sys/rman.h> 44 #include <sys/endian.h> 45 #include <sys/firmware.h> 46 #include <sys/limits.h> 47 #include <sys/module.h> 48 #include <sys/priv.h> 49 #include <sys/queue.h> 50 #include <sys/taskqueue.h> 51 52 #include <machine/bus.h> 53 #include <machine/resource.h> 54 #include <machine/clock.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 59 #include <net/if.h> 60 #include <net/if_var.h> 61 #include <net/if_dl.h> 62 #include <net/if_media.h> 63 64 #include <netinet/in.h> 65 #include <netinet/if_ether.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 #include <dev/iwn/if_iwn_devid.h> 75 #include <dev/iwn/if_iwn_chip_cfg.h> 76 #include <dev/iwn/if_iwn_debug.h> 77 #include <dev/iwn/if_iwn_ioctl.h> 78 79 struct iwn_ident { 80 uint16_t vendor; 81 uint16_t device; 82 const char *name; 83 }; 84 85 static const struct iwn_ident iwn_ident_table[] = { 86 { 0x8086, IWN_DID_6x05_1, "Intel Centrino Advanced-N 6205" }, 87 { 0x8086, IWN_DID_1000_1, "Intel Centrino Wireless-N 1000" }, 88 { 0x8086, IWN_DID_1000_2, "Intel Centrino Wireless-N 1000" }, 89 { 0x8086, IWN_DID_6x05_2, "Intel Centrino Advanced-N 6205" }, 90 { 0x8086, IWN_DID_6050_1, "Intel Centrino Advanced-N + WiMAX 6250" }, 91 { 0x8086, IWN_DID_6050_2, "Intel Centrino Advanced-N + WiMAX 6250" }, 92 { 0x8086, IWN_DID_x030_1, "Intel Centrino Wireless-N 1030" }, 93 { 0x8086, IWN_DID_x030_2, "Intel Centrino Wireless-N 1030" }, 94 { 0x8086, IWN_DID_x030_3, "Intel Centrino Advanced-N 6230" }, 95 { 0x8086, IWN_DID_x030_4, "Intel Centrino Advanced-N 6230" }, 96 { 0x8086, IWN_DID_6150_1, "Intel Centrino Wireless-N + WiMAX 6150" }, 97 { 0x8086, IWN_DID_6150_2, "Intel Centrino Wireless-N + WiMAX 6150" }, 98 { 0x8086, IWN_DID_2x00_1, "Intel(R) Centrino(R) Wireless-N 2200 BGN" }, 99 { 0x8086, IWN_DID_2x00_2, "Intel(R) Centrino(R) Wireless-N 2200 BGN" }, 100 /* XXX 2200D is IWN_SDID_2x00_4; there's no way to express this here! */ 101 { 0x8086, IWN_DID_2x30_1, "Intel Centrino Wireless-N 2230" }, 102 { 0x8086, IWN_DID_2x30_2, "Intel Centrino Wireless-N 2230" }, 103 { 0x8086, IWN_DID_130_1, "Intel Centrino Wireless-N 130" }, 104 { 0x8086, IWN_DID_130_2, "Intel Centrino Wireless-N 130" }, 105 { 0x8086, IWN_DID_100_1, "Intel Centrino Wireless-N 100" }, 106 { 0x8086, IWN_DID_100_2, "Intel Centrino Wireless-N 100" }, 107 { 0x8086, IWN_DID_105_1, "Intel Centrino Wireless-N 105" }, 108 { 0x8086, IWN_DID_105_2, "Intel Centrino Wireless-N 105" }, 109 { 0x8086, IWN_DID_135_1, "Intel Centrino Wireless-N 135" }, 110 { 0x8086, IWN_DID_135_2, "Intel Centrino Wireless-N 135" }, 111 { 0x8086, IWN_DID_4965_1, "Intel Wireless WiFi Link 4965" }, 112 { 0x8086, IWN_DID_6x00_1, "Intel Centrino Ultimate-N 6300" }, 113 { 0x8086, IWN_DID_6x00_2, "Intel Centrino Advanced-N 6200" }, 114 { 0x8086, IWN_DID_4965_2, "Intel Wireless WiFi Link 4965" }, 115 { 0x8086, IWN_DID_4965_3, "Intel Wireless WiFi Link 4965" }, 116 { 0x8086, IWN_DID_5x00_1, "Intel WiFi Link 5100" }, 117 { 0x8086, IWN_DID_4965_4, "Intel Wireless WiFi Link 4965" }, 118 { 0x8086, IWN_DID_5x00_3, "Intel Ultimate N WiFi Link 5300" }, 119 { 0x8086, IWN_DID_5x00_4, "Intel Ultimate N WiFi Link 5300" }, 120 { 0x8086, IWN_DID_5x00_2, "Intel WiFi Link 5100" }, 121 { 0x8086, IWN_DID_6x00_3, "Intel Centrino Ultimate-N 6300" }, 122 { 0x8086, IWN_DID_6x00_4, "Intel Centrino Advanced-N 6200" }, 123 { 0x8086, IWN_DID_5x50_1, "Intel WiMAX/WiFi Link 5350" }, 124 { 0x8086, IWN_DID_5x50_2, "Intel WiMAX/WiFi Link 5350" }, 125 { 0x8086, IWN_DID_5x50_3, "Intel WiMAX/WiFi Link 5150" }, 126 { 0x8086, IWN_DID_5x50_4, "Intel WiMAX/WiFi Link 5150" }, 127 { 0x8086, IWN_DID_6035_1, "Intel Centrino Advanced 6235" }, 128 { 0x8086, IWN_DID_6035_2, "Intel Centrino Advanced 6235" }, 129 { 0, 0, NULL } 130 }; 131 132 static int iwn_probe(device_t); 133 static int iwn_attach(device_t); 134 static int iwn4965_attach(struct iwn_softc *, uint16_t); 135 static int iwn5000_attach(struct iwn_softc *, uint16_t); 136 static int iwn_config_specific(struct iwn_softc *, uint16_t); 137 static void iwn_radiotap_attach(struct iwn_softc *); 138 static void iwn_sysctlattach(struct iwn_softc *); 139 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *, 140 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 141 const uint8_t [IEEE80211_ADDR_LEN], 142 const uint8_t [IEEE80211_ADDR_LEN]); 143 static void iwn_vap_delete(struct ieee80211vap *); 144 static int iwn_detach(device_t); 145 static int iwn_shutdown(device_t); 146 static int iwn_suspend(device_t); 147 static int iwn_resume(device_t); 148 static int iwn_nic_lock(struct iwn_softc *); 149 static int iwn_eeprom_lock(struct iwn_softc *); 150 static int iwn_init_otprom(struct iwn_softc *); 151 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int); 152 static void iwn_dma_map_addr(void *, bus_dma_segment_t *, int, int); 153 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *, 154 void **, bus_size_t, bus_size_t); 155 static void iwn_dma_contig_free(struct iwn_dma_info *); 156 static int iwn_alloc_sched(struct iwn_softc *); 157 static void iwn_free_sched(struct iwn_softc *); 158 static int iwn_alloc_kw(struct iwn_softc *); 159 static void iwn_free_kw(struct iwn_softc *); 160 static int iwn_alloc_ict(struct iwn_softc *); 161 static void iwn_free_ict(struct iwn_softc *); 162 static int iwn_alloc_fwmem(struct iwn_softc *); 163 static void iwn_free_fwmem(struct iwn_softc *); 164 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 165 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 166 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 167 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *, 168 int); 169 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 170 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 171 static void iwn5000_ict_reset(struct iwn_softc *); 172 static int iwn_read_eeprom(struct iwn_softc *, 173 uint8_t macaddr[IEEE80211_ADDR_LEN]); 174 static void iwn4965_read_eeprom(struct iwn_softc *); 175 #ifdef IWN_DEBUG 176 static void iwn4965_print_power_group(struct iwn_softc *, int); 177 #endif 178 static void iwn5000_read_eeprom(struct iwn_softc *); 179 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *); 180 static void iwn_read_eeprom_band(struct iwn_softc *, int, int, int *, 181 struct ieee80211_channel[]); 182 static void iwn_read_eeprom_ht40(struct iwn_softc *, int, int, int *, 183 struct ieee80211_channel[]); 184 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t); 185 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *, 186 struct ieee80211_channel *); 187 static void iwn_getradiocaps(struct ieee80211com *, int, int *, 188 struct ieee80211_channel[]); 189 static int iwn_setregdomain(struct ieee80211com *, 190 struct ieee80211_regdomain *, int, 191 struct ieee80211_channel[]); 192 static void iwn_read_eeprom_enhinfo(struct iwn_softc *); 193 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *, 194 const uint8_t mac[IEEE80211_ADDR_LEN]); 195 static void iwn_newassoc(struct ieee80211_node *, int); 196 static int iwn_media_change(struct ifnet *); 197 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); 198 static void iwn_calib_timeout(void *); 199 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *); 200 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *, 201 struct iwn_rx_data *); 202 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *); 203 static void iwn5000_rx_calib_results(struct iwn_softc *, 204 struct iwn_rx_desc *); 205 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *); 206 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 207 struct iwn_rx_data *); 208 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 209 struct iwn_rx_data *); 210 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, int, 211 uint8_t); 212 static void iwn_ampdu_tx_done(struct iwn_softc *, int, int, int, int, int, 213 void *); 214 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *); 215 static void iwn_notif_intr(struct iwn_softc *); 216 static void iwn_wakeup_intr(struct iwn_softc *); 217 static void iwn_rftoggle_task(void *, int); 218 static void iwn_fatal_intr(struct iwn_softc *); 219 static void iwn_intr(void *); 220 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t, 221 uint16_t); 222 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t, 223 uint16_t); 224 #ifdef notyet 225 static void iwn5000_reset_sched(struct iwn_softc *, int, int); 226 #endif 227 static int iwn_tx_data(struct iwn_softc *, struct mbuf *, 228 struct ieee80211_node *); 229 static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *, 230 struct ieee80211_node *, 231 const struct ieee80211_bpf_params *params); 232 static int iwn_tx_cmd(struct iwn_softc *, struct mbuf *, 233 struct ieee80211_node *, struct iwn_tx_ring *); 234 static void iwn_xmit_task(void *arg0, int pending); 235 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *, 236 const struct ieee80211_bpf_params *); 237 static int iwn_transmit(struct ieee80211com *, struct mbuf *); 238 static void iwn_scan_timeout(void *); 239 static void iwn_watchdog(void *); 240 static int iwn_ioctl(struct ieee80211com *, u_long , void *); 241 static void iwn_parent(struct ieee80211com *); 242 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 243 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *, 244 int); 245 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *, 246 int); 247 static int iwn_set_link_quality(struct iwn_softc *, 248 struct ieee80211_node *); 249 static int iwn_add_broadcast_node(struct iwn_softc *, int); 250 static int iwn_updateedca(struct ieee80211com *); 251 static void iwn_set_promisc(struct iwn_softc *); 252 static void iwn_update_promisc(struct ieee80211com *); 253 static void iwn_update_mcast(struct ieee80211com *); 254 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 255 static int iwn_set_critical_temp(struct iwn_softc *); 256 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *); 257 static void iwn4965_power_calibration(struct iwn_softc *, int); 258 static int iwn4965_set_txpower(struct iwn_softc *, int); 259 static int iwn5000_set_txpower(struct iwn_softc *, int); 260 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 261 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 262 static int iwn_get_noise(const struct iwn_rx_general_stats *); 263 static int iwn4965_get_temperature(struct iwn_softc *); 264 static int iwn5000_get_temperature(struct iwn_softc *); 265 static int iwn_init_sensitivity(struct iwn_softc *); 266 static void iwn_collect_noise(struct iwn_softc *, 267 const struct iwn_rx_general_stats *); 268 static int iwn4965_init_gains(struct iwn_softc *); 269 static int iwn5000_init_gains(struct iwn_softc *); 270 static int iwn4965_set_gains(struct iwn_softc *); 271 static int iwn5000_set_gains(struct iwn_softc *); 272 static void iwn_tune_sensitivity(struct iwn_softc *, 273 const struct iwn_rx_stats *); 274 static void iwn_save_stats_counters(struct iwn_softc *, 275 const struct iwn_stats *); 276 static int iwn_send_sensitivity(struct iwn_softc *); 277 static void iwn_check_rx_recovery(struct iwn_softc *, struct iwn_stats *); 278 static int iwn_set_pslevel(struct iwn_softc *, int, int, int); 279 static int iwn_send_btcoex(struct iwn_softc *); 280 static int iwn_send_advanced_btcoex(struct iwn_softc *); 281 static int iwn5000_runtime_calib(struct iwn_softc *); 282 static int iwn_check_bss_filter(struct iwn_softc *); 283 static int iwn4965_rxon_assoc(struct iwn_softc *, int); 284 static int iwn5000_rxon_assoc(struct iwn_softc *, int); 285 static int iwn_send_rxon(struct iwn_softc *, int, int); 286 static int iwn_config(struct iwn_softc *); 287 static int iwn_scan(struct iwn_softc *, struct ieee80211vap *, 288 struct ieee80211_scan_state *, struct ieee80211_channel *); 289 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap); 290 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap); 291 static int iwn_ampdu_rx_start(struct ieee80211_node *, 292 struct ieee80211_rx_ampdu *, int, int, int); 293 static void iwn_ampdu_rx_stop(struct ieee80211_node *, 294 struct ieee80211_rx_ampdu *); 295 static int iwn_addba_request(struct ieee80211_node *, 296 struct ieee80211_tx_ampdu *, int, int, int); 297 static int iwn_addba_response(struct ieee80211_node *, 298 struct ieee80211_tx_ampdu *, int, int, int); 299 static int iwn_ampdu_tx_start(struct ieee80211com *, 300 struct ieee80211_node *, uint8_t); 301 static void iwn_ampdu_tx_stop(struct ieee80211_node *, 302 struct ieee80211_tx_ampdu *); 303 static void iwn4965_ampdu_tx_start(struct iwn_softc *, 304 struct ieee80211_node *, int, uint8_t, uint16_t); 305 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, int, 306 uint8_t, uint16_t); 307 static void iwn5000_ampdu_tx_start(struct iwn_softc *, 308 struct ieee80211_node *, int, uint8_t, uint16_t); 309 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, int, 310 uint8_t, uint16_t); 311 static int iwn5000_query_calibration(struct iwn_softc *); 312 static int iwn5000_send_calibration(struct iwn_softc *); 313 static int iwn5000_send_wimax_coex(struct iwn_softc *); 314 static int iwn5000_crystal_calib(struct iwn_softc *); 315 static int iwn5000_temp_offset_calib(struct iwn_softc *); 316 static int iwn5000_temp_offset_calibv2(struct iwn_softc *); 317 static int iwn4965_post_alive(struct iwn_softc *); 318 static int iwn5000_post_alive(struct iwn_softc *); 319 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *, 320 int); 321 static int iwn4965_load_firmware(struct iwn_softc *); 322 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t, 323 const uint8_t *, int); 324 static int iwn5000_load_firmware(struct iwn_softc *); 325 static int iwn_read_firmware_leg(struct iwn_softc *, 326 struct iwn_fw_info *); 327 static int iwn_read_firmware_tlv(struct iwn_softc *, 328 struct iwn_fw_info *, uint16_t); 329 static int iwn_read_firmware(struct iwn_softc *); 330 static void iwn_unload_firmware(struct iwn_softc *); 331 static int iwn_clock_wait(struct iwn_softc *); 332 static int iwn_apm_init(struct iwn_softc *); 333 static void iwn_apm_stop_master(struct iwn_softc *); 334 static void iwn_apm_stop(struct iwn_softc *); 335 static int iwn4965_nic_config(struct iwn_softc *); 336 static int iwn5000_nic_config(struct iwn_softc *); 337 static int iwn_hw_prepare(struct iwn_softc *); 338 static int iwn_hw_init(struct iwn_softc *); 339 static void iwn_hw_stop(struct iwn_softc *); 340 static void iwn_panicked(void *, int); 341 static int iwn_init_locked(struct iwn_softc *); 342 static int iwn_init(struct iwn_softc *); 343 static void iwn_stop_locked(struct iwn_softc *); 344 static void iwn_stop(struct iwn_softc *); 345 static void iwn_scan_start(struct ieee80211com *); 346 static void iwn_scan_end(struct ieee80211com *); 347 static void iwn_set_channel(struct ieee80211com *); 348 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); 349 static void iwn_scan_mindwell(struct ieee80211_scan_state *); 350 #ifdef IWN_DEBUG 351 static char *iwn_get_csr_string(int); 352 static void iwn_debug_register(struct iwn_softc *); 353 #endif 354 355 static device_method_t iwn_methods[] = { 356 /* Device interface */ 357 DEVMETHOD(device_probe, iwn_probe), 358 DEVMETHOD(device_attach, iwn_attach), 359 DEVMETHOD(device_detach, iwn_detach), 360 DEVMETHOD(device_shutdown, iwn_shutdown), 361 DEVMETHOD(device_suspend, iwn_suspend), 362 DEVMETHOD(device_resume, iwn_resume), 363 364 DEVMETHOD_END 365 }; 366 367 static driver_t iwn_driver = { 368 "iwn", 369 iwn_methods, 370 sizeof(struct iwn_softc) 371 }; 372 static devclass_t iwn_devclass; 373 374 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, NULL, NULL); 375 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, iwn, iwn_ident_table, 376 nitems(iwn_ident_table) - 1); 377 MODULE_VERSION(iwn, 1); 378 379 MODULE_DEPEND(iwn, firmware, 1, 1, 1); 380 MODULE_DEPEND(iwn, pci, 1, 1, 1); 381 MODULE_DEPEND(iwn, wlan, 1, 1, 1); 382 383 static d_ioctl_t iwn_cdev_ioctl; 384 static d_open_t iwn_cdev_open; 385 static d_close_t iwn_cdev_close; 386 387 static struct cdevsw iwn_cdevsw = { 388 .d_version = D_VERSION, 389 .d_flags = 0, 390 .d_open = iwn_cdev_open, 391 .d_close = iwn_cdev_close, 392 .d_ioctl = iwn_cdev_ioctl, 393 .d_name = "iwn", 394 }; 395 396 static int 397 iwn_probe(device_t dev) 398 { 399 const struct iwn_ident *ident; 400 401 for (ident = iwn_ident_table; ident->name != NULL; ident++) { 402 if (pci_get_vendor(dev) == ident->vendor && 403 pci_get_device(dev) == ident->device) { 404 device_set_desc(dev, ident->name); 405 return (BUS_PROBE_DEFAULT); 406 } 407 } 408 return ENXIO; 409 } 410 411 static int 412 iwn_is_3stream_device(struct iwn_softc *sc) 413 { 414 /* XXX for now only 5300, until the 5350 can be tested */ 415 if (sc->hw_type == IWN_HW_REV_TYPE_5300) 416 return (1); 417 return (0); 418 } 419 420 static int 421 iwn_attach(device_t dev) 422 { 423 struct iwn_softc *sc = device_get_softc(dev); 424 struct ieee80211com *ic; 425 int i, error, rid; 426 427 sc->sc_dev = dev; 428 429 #ifdef IWN_DEBUG 430 error = resource_int_value(device_get_name(sc->sc_dev), 431 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug)); 432 if (error != 0) 433 sc->sc_debug = 0; 434 #else 435 sc->sc_debug = 0; 436 #endif 437 438 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: begin\n",__func__); 439 440 /* 441 * Get the offset of the PCI Express Capability Structure in PCI 442 * Configuration Space. 443 */ 444 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off); 445 if (error != 0) { 446 device_printf(dev, "PCIe capability structure not found!\n"); 447 return error; 448 } 449 450 /* Clear device-specific "PCI retry timeout" register (41h). */ 451 pci_write_config(dev, 0x41, 0, 1); 452 453 /* Enable bus-mastering. */ 454 pci_enable_busmaster(dev); 455 456 rid = PCIR_BAR(0); 457 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 458 RF_ACTIVE); 459 if (sc->mem == NULL) { 460 device_printf(dev, "can't map mem space\n"); 461 error = ENOMEM; 462 return error; 463 } 464 sc->sc_st = rman_get_bustag(sc->mem); 465 sc->sc_sh = rman_get_bushandle(sc->mem); 466 467 i = 1; 468 rid = 0; 469 if (pci_alloc_msi(dev, &i) == 0) 470 rid = 1; 471 /* Install interrupt handler. */ 472 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | 473 (rid != 0 ? 0 : RF_SHAREABLE)); 474 if (sc->irq == NULL) { 475 device_printf(dev, "can't map interrupt\n"); 476 error = ENOMEM; 477 goto fail; 478 } 479 480 IWN_LOCK_INIT(sc); 481 482 /* Read hardware revision and attach. */ 483 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> IWN_HW_REV_TYPE_SHIFT) 484 & IWN_HW_REV_TYPE_MASK; 485 sc->subdevice_id = pci_get_subdevice(dev); 486 487 /* 488 * 4965 versus 5000 and later have different methods. 489 * Let's set those up first. 490 */ 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 /* 502 * Next, let's setup the various parameters of each NIC. 503 */ 504 error = iwn_config_specific(sc, pci_get_device(dev)); 505 if (error != 0) { 506 device_printf(dev, "could not attach device, error %d\n", 507 error); 508 goto fail; 509 } 510 511 if ((error = iwn_hw_prepare(sc)) != 0) { 512 device_printf(dev, "hardware not ready, error %d\n", error); 513 goto fail; 514 } 515 516 /* Allocate DMA memory for firmware transfers. */ 517 if ((error = iwn_alloc_fwmem(sc)) != 0) { 518 device_printf(dev, 519 "could not allocate memory for firmware, error %d\n", 520 error); 521 goto fail; 522 } 523 524 /* Allocate "Keep Warm" page. */ 525 if ((error = iwn_alloc_kw(sc)) != 0) { 526 device_printf(dev, 527 "could not allocate keep warm page, error %d\n", error); 528 goto fail; 529 } 530 531 /* Allocate ICT table for 5000 Series. */ 532 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 533 (error = iwn_alloc_ict(sc)) != 0) { 534 device_printf(dev, "could not allocate ICT table, error %d\n", 535 error); 536 goto fail; 537 } 538 539 /* Allocate TX scheduler "rings". */ 540 if ((error = iwn_alloc_sched(sc)) != 0) { 541 device_printf(dev, 542 "could not allocate TX scheduler rings, error %d\n", error); 543 goto fail; 544 } 545 546 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */ 547 for (i = 0; i < sc->ntxqs; i++) { 548 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 549 device_printf(dev, 550 "could not allocate TX ring %d, error %d\n", i, 551 error); 552 goto fail; 553 } 554 } 555 556 /* Allocate RX ring. */ 557 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) { 558 device_printf(dev, "could not allocate RX ring, error %d\n", 559 error); 560 goto fail; 561 } 562 563 /* Clear pending interrupts. */ 564 IWN_WRITE(sc, IWN_INT, 0xffffffff); 565 566 ic = &sc->sc_ic; 567 ic->ic_softc = sc; 568 ic->ic_name = device_get_nameunit(dev); 569 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 570 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 571 572 /* Set device capabilities. */ 573 ic->ic_caps = 574 IEEE80211_C_STA /* station mode supported */ 575 | IEEE80211_C_MONITOR /* monitor mode supported */ 576 #if 0 577 | IEEE80211_C_BGSCAN /* background scanning */ 578 #endif 579 | IEEE80211_C_TXPMGT /* tx power management */ 580 | IEEE80211_C_SHSLOT /* short slot time supported */ 581 | IEEE80211_C_WPA 582 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 583 #if 0 584 | IEEE80211_C_IBSS /* ibss/adhoc mode */ 585 #endif 586 | IEEE80211_C_WME /* WME */ 587 | IEEE80211_C_PMGT /* Station-side power mgmt */ 588 ; 589 590 /* Read MAC address, channels, etc from EEPROM. */ 591 if ((error = iwn_read_eeprom(sc, ic->ic_macaddr)) != 0) { 592 device_printf(dev, "could not read EEPROM, error %d\n", 593 error); 594 goto fail; 595 } 596 597 /* Count the number of available chains. */ 598 sc->ntxchains = 599 ((sc->txchainmask >> 2) & 1) + 600 ((sc->txchainmask >> 1) & 1) + 601 ((sc->txchainmask >> 0) & 1); 602 sc->nrxchains = 603 ((sc->rxchainmask >> 2) & 1) + 604 ((sc->rxchainmask >> 1) & 1) + 605 ((sc->rxchainmask >> 0) & 1); 606 if (bootverbose) { 607 device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n", 608 sc->ntxchains, sc->nrxchains, sc->eeprom_domain, 609 ic->ic_macaddr, ":"); 610 } 611 612 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 613 ic->ic_rxstream = sc->nrxchains; 614 ic->ic_txstream = sc->ntxchains; 615 616 /* 617 * Some of the 3 antenna devices (ie, the 4965) only supports 618 * 2x2 operation. So correct the number of streams if 619 * it's not a 3-stream device. 620 */ 621 if (! iwn_is_3stream_device(sc)) { 622 if (ic->ic_rxstream > 2) 623 ic->ic_rxstream = 2; 624 if (ic->ic_txstream > 2) 625 ic->ic_txstream = 2; 626 } 627 628 ic->ic_htcaps = 629 IEEE80211_HTCAP_SMPS_OFF /* SMPS mode disabled */ 630 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 631 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width*/ 632 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 633 #ifdef notyet 634 | IEEE80211_HTCAP_GREENFIELD 635 #if IWN_RBUF_SIZE == 8192 636 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 637 #else 638 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 639 #endif 640 #endif 641 /* s/w capabilities */ 642 | IEEE80211_HTC_HT /* HT operation */ 643 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 644 #ifdef notyet 645 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 646 #endif 647 ; 648 } 649 650 ieee80211_ifattach(ic); 651 ic->ic_vap_create = iwn_vap_create; 652 ic->ic_ioctl = iwn_ioctl; 653 ic->ic_parent = iwn_parent; 654 ic->ic_vap_delete = iwn_vap_delete; 655 ic->ic_transmit = iwn_transmit; 656 ic->ic_raw_xmit = iwn_raw_xmit; 657 ic->ic_node_alloc = iwn_node_alloc; 658 sc->sc_ampdu_rx_start = ic->ic_ampdu_rx_start; 659 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start; 660 sc->sc_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 661 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop; 662 sc->sc_addba_request = ic->ic_addba_request; 663 ic->ic_addba_request = iwn_addba_request; 664 sc->sc_addba_response = ic->ic_addba_response; 665 ic->ic_addba_response = iwn_addba_response; 666 sc->sc_addba_stop = ic->ic_addba_stop; 667 ic->ic_addba_stop = iwn_ampdu_tx_stop; 668 ic->ic_newassoc = iwn_newassoc; 669 ic->ic_wme.wme_update = iwn_updateedca; 670 ic->ic_update_promisc = iwn_update_promisc; 671 ic->ic_update_mcast = iwn_update_mcast; 672 ic->ic_scan_start = iwn_scan_start; 673 ic->ic_scan_end = iwn_scan_end; 674 ic->ic_set_channel = iwn_set_channel; 675 ic->ic_scan_curchan = iwn_scan_curchan; 676 ic->ic_scan_mindwell = iwn_scan_mindwell; 677 ic->ic_getradiocaps = iwn_getradiocaps; 678 ic->ic_setregdomain = iwn_setregdomain; 679 680 iwn_radiotap_attach(sc); 681 682 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0); 683 callout_init_mtx(&sc->scan_timeout, &sc->sc_mtx, 0); 684 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0); 685 TASK_INIT(&sc->sc_rftoggle_task, 0, iwn_rftoggle_task, sc); 686 TASK_INIT(&sc->sc_panic_task, 0, iwn_panicked, sc); 687 TASK_INIT(&sc->sc_xmit_task, 0, iwn_xmit_task, sc); 688 689 mbufq_init(&sc->sc_xmit_queue, 1024); 690 691 sc->sc_tq = taskqueue_create("iwn_taskq", M_WAITOK, 692 taskqueue_thread_enqueue, &sc->sc_tq); 693 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "iwn_taskq"); 694 if (error != 0) { 695 device_printf(dev, "can't start threads, error %d\n", error); 696 goto fail; 697 } 698 699 iwn_sysctlattach(sc); 700 701 /* 702 * Hook our interrupt after all initialization is complete. 703 */ 704 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 705 NULL, iwn_intr, sc, &sc->sc_ih); 706 if (error != 0) { 707 device_printf(dev, "can't establish interrupt, error %d\n", 708 error); 709 goto fail; 710 } 711 712 #if 0 713 device_printf(sc->sc_dev, "%s: rx_stats=%d, rx_stats_bt=%d\n", 714 __func__, 715 sizeof(struct iwn_stats), 716 sizeof(struct iwn_stats_bt)); 717 #endif 718 719 if (bootverbose) 720 ieee80211_announce(ic); 721 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 722 723 /* Add debug ioctl right at the end */ 724 sc->sc_cdev = make_dev(&iwn_cdevsw, device_get_unit(dev), 725 UID_ROOT, GID_WHEEL, 0600, "%s", device_get_nameunit(dev)); 726 if (sc->sc_cdev == NULL) { 727 device_printf(dev, "failed to create debug character device\n"); 728 } else { 729 sc->sc_cdev->si_drv1 = sc; 730 } 731 return 0; 732 fail: 733 iwn_detach(dev); 734 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__); 735 return error; 736 } 737 738 /* 739 * Define specific configuration based on device id and subdevice id 740 * pid : PCI device id 741 */ 742 static int 743 iwn_config_specific(struct iwn_softc *sc, uint16_t pid) 744 { 745 746 switch (pid) { 747 /* 4965 series */ 748 case IWN_DID_4965_1: 749 case IWN_DID_4965_2: 750 case IWN_DID_4965_3: 751 case IWN_DID_4965_4: 752 sc->base_params = &iwn4965_base_params; 753 sc->limits = &iwn4965_sensitivity_limits; 754 sc->fwname = "iwn4965fw"; 755 /* Override chains masks, ROM is known to be broken. */ 756 sc->txchainmask = IWN_ANT_AB; 757 sc->rxchainmask = IWN_ANT_ABC; 758 /* Enable normal btcoex */ 759 sc->sc_flags |= IWN_FLAG_BTCOEX; 760 break; 761 /* 1000 Series */ 762 case IWN_DID_1000_1: 763 case IWN_DID_1000_2: 764 switch(sc->subdevice_id) { 765 case IWN_SDID_1000_1: 766 case IWN_SDID_1000_2: 767 case IWN_SDID_1000_3: 768 case IWN_SDID_1000_4: 769 case IWN_SDID_1000_5: 770 case IWN_SDID_1000_6: 771 case IWN_SDID_1000_7: 772 case IWN_SDID_1000_8: 773 case IWN_SDID_1000_9: 774 case IWN_SDID_1000_10: 775 case IWN_SDID_1000_11: 776 case IWN_SDID_1000_12: 777 sc->limits = &iwn1000_sensitivity_limits; 778 sc->base_params = &iwn1000_base_params; 779 sc->fwname = "iwn1000fw"; 780 break; 781 default: 782 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 783 "0x%04x rev %d not supported (subdevice)\n", pid, 784 sc->subdevice_id,sc->hw_type); 785 return ENOTSUP; 786 } 787 break; 788 /* 6x00 Series */ 789 case IWN_DID_6x00_2: 790 case IWN_DID_6x00_4: 791 case IWN_DID_6x00_1: 792 case IWN_DID_6x00_3: 793 sc->fwname = "iwn6000fw"; 794 sc->limits = &iwn6000_sensitivity_limits; 795 switch(sc->subdevice_id) { 796 case IWN_SDID_6x00_1: 797 case IWN_SDID_6x00_2: 798 case IWN_SDID_6x00_8: 799 //iwl6000_3agn_cfg 800 sc->base_params = &iwn_6000_base_params; 801 break; 802 case IWN_SDID_6x00_3: 803 case IWN_SDID_6x00_6: 804 case IWN_SDID_6x00_9: 805 ////iwl6000i_2agn 806 case IWN_SDID_6x00_4: 807 case IWN_SDID_6x00_7: 808 case IWN_SDID_6x00_10: 809 //iwl6000i_2abg_cfg 810 case IWN_SDID_6x00_5: 811 //iwl6000i_2bg_cfg 812 sc->base_params = &iwn_6000i_base_params; 813 sc->sc_flags |= IWN_FLAG_INTERNAL_PA; 814 sc->txchainmask = IWN_ANT_BC; 815 sc->rxchainmask = IWN_ANT_BC; 816 break; 817 default: 818 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 819 "0x%04x rev %d not supported (subdevice)\n", pid, 820 sc->subdevice_id,sc->hw_type); 821 return ENOTSUP; 822 } 823 break; 824 /* 6x05 Series */ 825 case IWN_DID_6x05_1: 826 case IWN_DID_6x05_2: 827 switch(sc->subdevice_id) { 828 case IWN_SDID_6x05_1: 829 case IWN_SDID_6x05_4: 830 case IWN_SDID_6x05_6: 831 //iwl6005_2agn_cfg 832 case IWN_SDID_6x05_2: 833 case IWN_SDID_6x05_5: 834 case IWN_SDID_6x05_7: 835 //iwl6005_2abg_cfg 836 case IWN_SDID_6x05_3: 837 //iwl6005_2bg_cfg 838 case IWN_SDID_6x05_8: 839 case IWN_SDID_6x05_9: 840 //iwl6005_2agn_sff_cfg 841 case IWN_SDID_6x05_10: 842 //iwl6005_2agn_d_cfg 843 case IWN_SDID_6x05_11: 844 //iwl6005_2agn_mow1_cfg 845 case IWN_SDID_6x05_12: 846 //iwl6005_2agn_mow2_cfg 847 sc->fwname = "iwn6000g2afw"; 848 sc->limits = &iwn6000_sensitivity_limits; 849 sc->base_params = &iwn_6000g2_base_params; 850 break; 851 default: 852 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 853 "0x%04x rev %d not supported (subdevice)\n", pid, 854 sc->subdevice_id,sc->hw_type); 855 return ENOTSUP; 856 } 857 break; 858 /* 6x35 Series */ 859 case IWN_DID_6035_1: 860 case IWN_DID_6035_2: 861 switch(sc->subdevice_id) { 862 case IWN_SDID_6035_1: 863 case IWN_SDID_6035_2: 864 case IWN_SDID_6035_3: 865 case IWN_SDID_6035_4: 866 case IWN_SDID_6035_5: 867 sc->fwname = "iwn6000g2bfw"; 868 sc->limits = &iwn6235_sensitivity_limits; 869 sc->base_params = &iwn_6235_base_params; 870 break; 871 default: 872 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 873 "0x%04x rev %d not supported (subdevice)\n", pid, 874 sc->subdevice_id,sc->hw_type); 875 return ENOTSUP; 876 } 877 break; 878 /* 6x50 WiFi/WiMax Series */ 879 case IWN_DID_6050_1: 880 case IWN_DID_6050_2: 881 switch(sc->subdevice_id) { 882 case IWN_SDID_6050_1: 883 case IWN_SDID_6050_3: 884 case IWN_SDID_6050_5: 885 //iwl6050_2agn_cfg 886 case IWN_SDID_6050_2: 887 case IWN_SDID_6050_4: 888 case IWN_SDID_6050_6: 889 //iwl6050_2abg_cfg 890 sc->fwname = "iwn6050fw"; 891 sc->txchainmask = IWN_ANT_AB; 892 sc->rxchainmask = IWN_ANT_AB; 893 sc->limits = &iwn6000_sensitivity_limits; 894 sc->base_params = &iwn_6050_base_params; 895 break; 896 default: 897 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 898 "0x%04x rev %d not supported (subdevice)\n", pid, 899 sc->subdevice_id,sc->hw_type); 900 return ENOTSUP; 901 } 902 break; 903 /* 6150 WiFi/WiMax Series */ 904 case IWN_DID_6150_1: 905 case IWN_DID_6150_2: 906 switch(sc->subdevice_id) { 907 case IWN_SDID_6150_1: 908 case IWN_SDID_6150_3: 909 case IWN_SDID_6150_5: 910 // iwl6150_bgn_cfg 911 case IWN_SDID_6150_2: 912 case IWN_SDID_6150_4: 913 case IWN_SDID_6150_6: 914 //iwl6150_bg_cfg 915 sc->fwname = "iwn6050fw"; 916 sc->limits = &iwn6000_sensitivity_limits; 917 sc->base_params = &iwn_6150_base_params; 918 break; 919 default: 920 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 921 "0x%04x rev %d not supported (subdevice)\n", pid, 922 sc->subdevice_id,sc->hw_type); 923 return ENOTSUP; 924 } 925 break; 926 /* 6030 Series and 1030 Series */ 927 case IWN_DID_x030_1: 928 case IWN_DID_x030_2: 929 case IWN_DID_x030_3: 930 case IWN_DID_x030_4: 931 switch(sc->subdevice_id) { 932 case IWN_SDID_x030_1: 933 case IWN_SDID_x030_3: 934 case IWN_SDID_x030_5: 935 // iwl1030_bgn_cfg 936 case IWN_SDID_x030_2: 937 case IWN_SDID_x030_4: 938 case IWN_SDID_x030_6: 939 //iwl1030_bg_cfg 940 case IWN_SDID_x030_7: 941 case IWN_SDID_x030_10: 942 case IWN_SDID_x030_14: 943 //iwl6030_2agn_cfg 944 case IWN_SDID_x030_8: 945 case IWN_SDID_x030_11: 946 case IWN_SDID_x030_15: 947 // iwl6030_2bgn_cfg 948 case IWN_SDID_x030_9: 949 case IWN_SDID_x030_12: 950 case IWN_SDID_x030_16: 951 // iwl6030_2abg_cfg 952 case IWN_SDID_x030_13: 953 //iwl6030_2bg_cfg 954 sc->fwname = "iwn6000g2bfw"; 955 sc->limits = &iwn6000_sensitivity_limits; 956 sc->base_params = &iwn_6000g2b_base_params; 957 break; 958 default: 959 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 960 "0x%04x rev %d not supported (subdevice)\n", pid, 961 sc->subdevice_id,sc->hw_type); 962 return ENOTSUP; 963 } 964 break; 965 /* 130 Series WiFi */ 966 /* XXX: This series will need adjustment for rate. 967 * see rx_with_siso_diversity in linux kernel 968 */ 969 case IWN_DID_130_1: 970 case IWN_DID_130_2: 971 switch(sc->subdevice_id) { 972 case IWN_SDID_130_1: 973 case IWN_SDID_130_3: 974 case IWN_SDID_130_5: 975 //iwl130_bgn_cfg 976 case IWN_SDID_130_2: 977 case IWN_SDID_130_4: 978 case IWN_SDID_130_6: 979 //iwl130_bg_cfg 980 sc->fwname = "iwn6000g2bfw"; 981 sc->limits = &iwn6000_sensitivity_limits; 982 sc->base_params = &iwn_6000g2b_base_params; 983 break; 984 default: 985 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 986 "0x%04x rev %d not supported (subdevice)\n", pid, 987 sc->subdevice_id,sc->hw_type); 988 return ENOTSUP; 989 } 990 break; 991 /* 100 Series WiFi */ 992 case IWN_DID_100_1: 993 case IWN_DID_100_2: 994 switch(sc->subdevice_id) { 995 case IWN_SDID_100_1: 996 case IWN_SDID_100_2: 997 case IWN_SDID_100_3: 998 case IWN_SDID_100_4: 999 case IWN_SDID_100_5: 1000 case IWN_SDID_100_6: 1001 sc->limits = &iwn1000_sensitivity_limits; 1002 sc->base_params = &iwn1000_base_params; 1003 sc->fwname = "iwn100fw"; 1004 break; 1005 default: 1006 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1007 "0x%04x rev %d not supported (subdevice)\n", pid, 1008 sc->subdevice_id,sc->hw_type); 1009 return ENOTSUP; 1010 } 1011 break; 1012 1013 /* 105 Series */ 1014 /* XXX: This series will need adjustment for rate. 1015 * see rx_with_siso_diversity in linux kernel 1016 */ 1017 case IWN_DID_105_1: 1018 case IWN_DID_105_2: 1019 switch(sc->subdevice_id) { 1020 case IWN_SDID_105_1: 1021 case IWN_SDID_105_2: 1022 case IWN_SDID_105_3: 1023 //iwl105_bgn_cfg 1024 case IWN_SDID_105_4: 1025 //iwl105_bgn_d_cfg 1026 sc->limits = &iwn2030_sensitivity_limits; 1027 sc->base_params = &iwn2000_base_params; 1028 sc->fwname = "iwn105fw"; 1029 break; 1030 default: 1031 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1032 "0x%04x rev %d not supported (subdevice)\n", pid, 1033 sc->subdevice_id,sc->hw_type); 1034 return ENOTSUP; 1035 } 1036 break; 1037 1038 /* 135 Series */ 1039 /* XXX: This series will need adjustment for rate. 1040 * see rx_with_siso_diversity in linux kernel 1041 */ 1042 case IWN_DID_135_1: 1043 case IWN_DID_135_2: 1044 switch(sc->subdevice_id) { 1045 case IWN_SDID_135_1: 1046 case IWN_SDID_135_2: 1047 case IWN_SDID_135_3: 1048 sc->limits = &iwn2030_sensitivity_limits; 1049 sc->base_params = &iwn2030_base_params; 1050 sc->fwname = "iwn135fw"; 1051 break; 1052 default: 1053 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1054 "0x%04x rev %d not supported (subdevice)\n", pid, 1055 sc->subdevice_id,sc->hw_type); 1056 return ENOTSUP; 1057 } 1058 break; 1059 1060 /* 2x00 Series */ 1061 case IWN_DID_2x00_1: 1062 case IWN_DID_2x00_2: 1063 switch(sc->subdevice_id) { 1064 case IWN_SDID_2x00_1: 1065 case IWN_SDID_2x00_2: 1066 case IWN_SDID_2x00_3: 1067 //iwl2000_2bgn_cfg 1068 case IWN_SDID_2x00_4: 1069 //iwl2000_2bgn_d_cfg 1070 sc->limits = &iwn2030_sensitivity_limits; 1071 sc->base_params = &iwn2000_base_params; 1072 sc->fwname = "iwn2000fw"; 1073 break; 1074 default: 1075 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1076 "0x%04x rev %d not supported (subdevice) \n", 1077 pid, sc->subdevice_id, sc->hw_type); 1078 return ENOTSUP; 1079 } 1080 break; 1081 /* 2x30 Series */ 1082 case IWN_DID_2x30_1: 1083 case IWN_DID_2x30_2: 1084 switch(sc->subdevice_id) { 1085 case IWN_SDID_2x30_1: 1086 case IWN_SDID_2x30_3: 1087 case IWN_SDID_2x30_5: 1088 //iwl100_bgn_cfg 1089 case IWN_SDID_2x30_2: 1090 case IWN_SDID_2x30_4: 1091 case IWN_SDID_2x30_6: 1092 //iwl100_bg_cfg 1093 sc->limits = &iwn2030_sensitivity_limits; 1094 sc->base_params = &iwn2030_base_params; 1095 sc->fwname = "iwn2030fw"; 1096 break; 1097 default: 1098 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1099 "0x%04x rev %d not supported (subdevice)\n", pid, 1100 sc->subdevice_id,sc->hw_type); 1101 return ENOTSUP; 1102 } 1103 break; 1104 /* 5x00 Series */ 1105 case IWN_DID_5x00_1: 1106 case IWN_DID_5x00_2: 1107 case IWN_DID_5x00_3: 1108 case IWN_DID_5x00_4: 1109 sc->limits = &iwn5000_sensitivity_limits; 1110 sc->base_params = &iwn5000_base_params; 1111 sc->fwname = "iwn5000fw"; 1112 switch(sc->subdevice_id) { 1113 case IWN_SDID_5x00_1: 1114 case IWN_SDID_5x00_2: 1115 case IWN_SDID_5x00_3: 1116 case IWN_SDID_5x00_4: 1117 case IWN_SDID_5x00_9: 1118 case IWN_SDID_5x00_10: 1119 case IWN_SDID_5x00_11: 1120 case IWN_SDID_5x00_12: 1121 case IWN_SDID_5x00_17: 1122 case IWN_SDID_5x00_18: 1123 case IWN_SDID_5x00_19: 1124 case IWN_SDID_5x00_20: 1125 //iwl5100_agn_cfg 1126 sc->txchainmask = IWN_ANT_B; 1127 sc->rxchainmask = IWN_ANT_AB; 1128 break; 1129 case IWN_SDID_5x00_5: 1130 case IWN_SDID_5x00_6: 1131 case IWN_SDID_5x00_13: 1132 case IWN_SDID_5x00_14: 1133 case IWN_SDID_5x00_21: 1134 case IWN_SDID_5x00_22: 1135 //iwl5100_bgn_cfg 1136 sc->txchainmask = IWN_ANT_B; 1137 sc->rxchainmask = IWN_ANT_AB; 1138 break; 1139 case IWN_SDID_5x00_7: 1140 case IWN_SDID_5x00_8: 1141 case IWN_SDID_5x00_15: 1142 case IWN_SDID_5x00_16: 1143 case IWN_SDID_5x00_23: 1144 case IWN_SDID_5x00_24: 1145 //iwl5100_abg_cfg 1146 sc->txchainmask = IWN_ANT_B; 1147 sc->rxchainmask = IWN_ANT_AB; 1148 break; 1149 case IWN_SDID_5x00_25: 1150 case IWN_SDID_5x00_26: 1151 case IWN_SDID_5x00_27: 1152 case IWN_SDID_5x00_28: 1153 case IWN_SDID_5x00_29: 1154 case IWN_SDID_5x00_30: 1155 case IWN_SDID_5x00_31: 1156 case IWN_SDID_5x00_32: 1157 case IWN_SDID_5x00_33: 1158 case IWN_SDID_5x00_34: 1159 case IWN_SDID_5x00_35: 1160 case IWN_SDID_5x00_36: 1161 //iwl5300_agn_cfg 1162 sc->txchainmask = IWN_ANT_ABC; 1163 sc->rxchainmask = IWN_ANT_ABC; 1164 break; 1165 default: 1166 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1167 "0x%04x rev %d not supported (subdevice)\n", pid, 1168 sc->subdevice_id,sc->hw_type); 1169 return ENOTSUP; 1170 } 1171 break; 1172 /* 5x50 Series */ 1173 case IWN_DID_5x50_1: 1174 case IWN_DID_5x50_2: 1175 case IWN_DID_5x50_3: 1176 case IWN_DID_5x50_4: 1177 sc->limits = &iwn5000_sensitivity_limits; 1178 sc->base_params = &iwn5000_base_params; 1179 sc->fwname = "iwn5000fw"; 1180 switch(sc->subdevice_id) { 1181 case IWN_SDID_5x50_1: 1182 case IWN_SDID_5x50_2: 1183 case IWN_SDID_5x50_3: 1184 //iwl5350_agn_cfg 1185 sc->limits = &iwn5000_sensitivity_limits; 1186 sc->base_params = &iwn5000_base_params; 1187 sc->fwname = "iwn5000fw"; 1188 break; 1189 case IWN_SDID_5x50_4: 1190 case IWN_SDID_5x50_5: 1191 case IWN_SDID_5x50_8: 1192 case IWN_SDID_5x50_9: 1193 case IWN_SDID_5x50_10: 1194 case IWN_SDID_5x50_11: 1195 //iwl5150_agn_cfg 1196 case IWN_SDID_5x50_6: 1197 case IWN_SDID_5x50_7: 1198 case IWN_SDID_5x50_12: 1199 case IWN_SDID_5x50_13: 1200 //iwl5150_abg_cfg 1201 sc->limits = &iwn5000_sensitivity_limits; 1202 sc->fwname = "iwn5150fw"; 1203 sc->base_params = &iwn_5x50_base_params; 1204 break; 1205 default: 1206 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1207 "0x%04x rev %d not supported (subdevice)\n", pid, 1208 sc->subdevice_id,sc->hw_type); 1209 return ENOTSUP; 1210 } 1211 break; 1212 default: 1213 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id : 0x%04x" 1214 "rev 0x%08x not supported (device)\n", pid, sc->subdevice_id, 1215 sc->hw_type); 1216 return ENOTSUP; 1217 } 1218 return 0; 1219 } 1220 1221 static int 1222 iwn4965_attach(struct iwn_softc *sc, uint16_t pid) 1223 { 1224 struct iwn_ops *ops = &sc->ops; 1225 1226 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1227 ops->load_firmware = iwn4965_load_firmware; 1228 ops->read_eeprom = iwn4965_read_eeprom; 1229 ops->post_alive = iwn4965_post_alive; 1230 ops->nic_config = iwn4965_nic_config; 1231 ops->update_sched = iwn4965_update_sched; 1232 ops->get_temperature = iwn4965_get_temperature; 1233 ops->get_rssi = iwn4965_get_rssi; 1234 ops->set_txpower = iwn4965_set_txpower; 1235 ops->init_gains = iwn4965_init_gains; 1236 ops->set_gains = iwn4965_set_gains; 1237 ops->rxon_assoc = iwn4965_rxon_assoc; 1238 ops->add_node = iwn4965_add_node; 1239 ops->tx_done = iwn4965_tx_done; 1240 ops->ampdu_tx_start = iwn4965_ampdu_tx_start; 1241 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop; 1242 sc->ntxqs = IWN4965_NTXQUEUES; 1243 sc->firstaggqueue = IWN4965_FIRSTAGGQUEUE; 1244 sc->ndmachnls = IWN4965_NDMACHNLS; 1245 sc->broadcast_id = IWN4965_ID_BROADCAST; 1246 sc->rxonsz = IWN4965_RXONSZ; 1247 sc->schedsz = IWN4965_SCHEDSZ; 1248 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ; 1249 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ; 1250 sc->fwsz = IWN4965_FWSZ; 1251 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT; 1252 sc->limits = &iwn4965_sensitivity_limits; 1253 sc->fwname = "iwn4965fw"; 1254 /* Override chains masks, ROM is known to be broken. */ 1255 sc->txchainmask = IWN_ANT_AB; 1256 sc->rxchainmask = IWN_ANT_ABC; 1257 /* Enable normal btcoex */ 1258 sc->sc_flags |= IWN_FLAG_BTCOEX; 1259 1260 DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__); 1261 1262 return 0; 1263 } 1264 1265 static int 1266 iwn5000_attach(struct iwn_softc *sc, uint16_t pid) 1267 { 1268 struct iwn_ops *ops = &sc->ops; 1269 1270 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1271 1272 ops->load_firmware = iwn5000_load_firmware; 1273 ops->read_eeprom = iwn5000_read_eeprom; 1274 ops->post_alive = iwn5000_post_alive; 1275 ops->nic_config = iwn5000_nic_config; 1276 ops->update_sched = iwn5000_update_sched; 1277 ops->get_temperature = iwn5000_get_temperature; 1278 ops->get_rssi = iwn5000_get_rssi; 1279 ops->set_txpower = iwn5000_set_txpower; 1280 ops->init_gains = iwn5000_init_gains; 1281 ops->set_gains = iwn5000_set_gains; 1282 ops->rxon_assoc = iwn5000_rxon_assoc; 1283 ops->add_node = iwn5000_add_node; 1284 ops->tx_done = iwn5000_tx_done; 1285 ops->ampdu_tx_start = iwn5000_ampdu_tx_start; 1286 ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop; 1287 sc->ntxqs = IWN5000_NTXQUEUES; 1288 sc->firstaggqueue = IWN5000_FIRSTAGGQUEUE; 1289 sc->ndmachnls = IWN5000_NDMACHNLS; 1290 sc->broadcast_id = IWN5000_ID_BROADCAST; 1291 sc->rxonsz = IWN5000_RXONSZ; 1292 sc->schedsz = IWN5000_SCHEDSZ; 1293 sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ; 1294 sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ; 1295 sc->fwsz = IWN5000_FWSZ; 1296 sc->sched_txfact_addr = IWN5000_SCHED_TXFACT; 1297 sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN; 1298 sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN; 1299 1300 return 0; 1301 } 1302 1303 /* 1304 * Attach the interface to 802.11 radiotap. 1305 */ 1306 static void 1307 iwn_radiotap_attach(struct iwn_softc *sc) 1308 { 1309 1310 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1311 ieee80211_radiotap_attach(&sc->sc_ic, 1312 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 1313 IWN_TX_RADIOTAP_PRESENT, 1314 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 1315 IWN_RX_RADIOTAP_PRESENT); 1316 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 1317 } 1318 1319 static void 1320 iwn_sysctlattach(struct iwn_softc *sc) 1321 { 1322 #ifdef IWN_DEBUG 1323 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 1324 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 1325 1326 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 1327 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug, 1328 "control debugging printfs"); 1329 #endif 1330 } 1331 1332 static struct ieee80211vap * 1333 iwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 1334 enum ieee80211_opmode opmode, int flags, 1335 const uint8_t bssid[IEEE80211_ADDR_LEN], 1336 const uint8_t mac[IEEE80211_ADDR_LEN]) 1337 { 1338 struct iwn_softc *sc = ic->ic_softc; 1339 struct iwn_vap *ivp; 1340 struct ieee80211vap *vap; 1341 1342 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 1343 return NULL; 1344 1345 ivp = malloc(sizeof(struct iwn_vap), M_80211_VAP, M_WAITOK | M_ZERO); 1346 vap = &ivp->iv_vap; 1347 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 1348 ivp->ctx = IWN_RXON_BSS_CTX; 1349 vap->iv_bmissthreshold = 10; /* override default */ 1350 /* Override with driver methods. */ 1351 ivp->iv_newstate = vap->iv_newstate; 1352 vap->iv_newstate = iwn_newstate; 1353 sc->ivap[IWN_RXON_BSS_CTX] = vap; 1354 1355 ieee80211_ratectl_init(vap); 1356 /* Complete setup. */ 1357 ieee80211_vap_attach(vap, iwn_media_change, ieee80211_media_status, 1358 mac); 1359 ic->ic_opmode = opmode; 1360 return vap; 1361 } 1362 1363 static void 1364 iwn_vap_delete(struct ieee80211vap *vap) 1365 { 1366 struct iwn_vap *ivp = IWN_VAP(vap); 1367 1368 ieee80211_ratectl_deinit(vap); 1369 ieee80211_vap_detach(vap); 1370 free(ivp, M_80211_VAP); 1371 } 1372 1373 static void 1374 iwn_xmit_queue_drain(struct iwn_softc *sc) 1375 { 1376 struct mbuf *m; 1377 struct ieee80211_node *ni; 1378 1379 IWN_LOCK_ASSERT(sc); 1380 while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) { 1381 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 1382 ieee80211_free_node(ni); 1383 m_freem(m); 1384 } 1385 } 1386 1387 static int 1388 iwn_xmit_queue_enqueue(struct iwn_softc *sc, struct mbuf *m) 1389 { 1390 1391 IWN_LOCK_ASSERT(sc); 1392 return (mbufq_enqueue(&sc->sc_xmit_queue, m)); 1393 } 1394 1395 static int 1396 iwn_detach(device_t dev) 1397 { 1398 struct iwn_softc *sc = device_get_softc(dev); 1399 int qid; 1400 1401 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1402 1403 if (sc->sc_ic.ic_softc != NULL) { 1404 /* Free the mbuf queue and node references */ 1405 IWN_LOCK(sc); 1406 iwn_xmit_queue_drain(sc); 1407 IWN_UNLOCK(sc); 1408 1409 iwn_stop(sc); 1410 1411 taskqueue_drain_all(sc->sc_tq); 1412 taskqueue_free(sc->sc_tq); 1413 1414 callout_drain(&sc->watchdog_to); 1415 callout_drain(&sc->scan_timeout); 1416 callout_drain(&sc->calib_to); 1417 ieee80211_ifdetach(&sc->sc_ic); 1418 } 1419 1420 /* Uninstall interrupt handler. */ 1421 if (sc->irq != NULL) { 1422 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 1423 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), 1424 sc->irq); 1425 pci_release_msi(dev); 1426 } 1427 1428 /* Free DMA resources. */ 1429 iwn_free_rx_ring(sc, &sc->rxq); 1430 for (qid = 0; qid < sc->ntxqs; qid++) 1431 iwn_free_tx_ring(sc, &sc->txq[qid]); 1432 iwn_free_sched(sc); 1433 iwn_free_kw(sc); 1434 if (sc->ict != NULL) 1435 iwn_free_ict(sc); 1436 iwn_free_fwmem(sc); 1437 1438 if (sc->mem != NULL) 1439 bus_release_resource(dev, SYS_RES_MEMORY, 1440 rman_get_rid(sc->mem), sc->mem); 1441 1442 if (sc->sc_cdev) { 1443 destroy_dev(sc->sc_cdev); 1444 sc->sc_cdev = NULL; 1445 } 1446 1447 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n", __func__); 1448 IWN_LOCK_DESTROY(sc); 1449 return 0; 1450 } 1451 1452 static int 1453 iwn_shutdown(device_t dev) 1454 { 1455 struct iwn_softc *sc = device_get_softc(dev); 1456 1457 iwn_stop(sc); 1458 return 0; 1459 } 1460 1461 static int 1462 iwn_suspend(device_t dev) 1463 { 1464 struct iwn_softc *sc = device_get_softc(dev); 1465 1466 ieee80211_suspend_all(&sc->sc_ic); 1467 return 0; 1468 } 1469 1470 static int 1471 iwn_resume(device_t dev) 1472 { 1473 struct iwn_softc *sc = device_get_softc(dev); 1474 1475 /* Clear device-specific "PCI retry timeout" register (41h). */ 1476 pci_write_config(dev, 0x41, 0, 1); 1477 1478 ieee80211_resume_all(&sc->sc_ic); 1479 return 0; 1480 } 1481 1482 static int 1483 iwn_nic_lock(struct iwn_softc *sc) 1484 { 1485 int ntries; 1486 1487 /* Request exclusive access to NIC. */ 1488 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 1489 1490 /* Spin until we actually get the lock. */ 1491 for (ntries = 0; ntries < 1000; ntries++) { 1492 if ((IWN_READ(sc, IWN_GP_CNTRL) & 1493 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) == 1494 IWN_GP_CNTRL_MAC_ACCESS_ENA) 1495 return 0; 1496 DELAY(10); 1497 } 1498 return ETIMEDOUT; 1499 } 1500 1501 static __inline void 1502 iwn_nic_unlock(struct iwn_softc *sc) 1503 { 1504 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 1505 } 1506 1507 static __inline uint32_t 1508 iwn_prph_read(struct iwn_softc *sc, uint32_t addr) 1509 { 1510 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr); 1511 IWN_BARRIER_READ_WRITE(sc); 1512 return IWN_READ(sc, IWN_PRPH_RDATA); 1513 } 1514 1515 static __inline void 1516 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1517 { 1518 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr); 1519 IWN_BARRIER_WRITE(sc); 1520 IWN_WRITE(sc, IWN_PRPH_WDATA, data); 1521 } 1522 1523 static __inline void 1524 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1525 { 1526 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask); 1527 } 1528 1529 static __inline void 1530 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1531 { 1532 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask); 1533 } 1534 1535 static __inline void 1536 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr, 1537 const uint32_t *data, int count) 1538 { 1539 for (; count > 0; count--, data++, addr += 4) 1540 iwn_prph_write(sc, addr, *data); 1541 } 1542 1543 static __inline uint32_t 1544 iwn_mem_read(struct iwn_softc *sc, uint32_t addr) 1545 { 1546 IWN_WRITE(sc, IWN_MEM_RADDR, addr); 1547 IWN_BARRIER_READ_WRITE(sc); 1548 return IWN_READ(sc, IWN_MEM_RDATA); 1549 } 1550 1551 static __inline void 1552 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1553 { 1554 IWN_WRITE(sc, IWN_MEM_WADDR, addr); 1555 IWN_BARRIER_WRITE(sc); 1556 IWN_WRITE(sc, IWN_MEM_WDATA, data); 1557 } 1558 1559 static __inline void 1560 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data) 1561 { 1562 uint32_t tmp; 1563 1564 tmp = iwn_mem_read(sc, addr & ~3); 1565 if (addr & 3) 1566 tmp = (tmp & 0x0000ffff) | data << 16; 1567 else 1568 tmp = (tmp & 0xffff0000) | data; 1569 iwn_mem_write(sc, addr & ~3, tmp); 1570 } 1571 1572 static __inline void 1573 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data, 1574 int count) 1575 { 1576 for (; count > 0; count--, addr += 4) 1577 *data++ = iwn_mem_read(sc, addr); 1578 } 1579 1580 static __inline void 1581 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val, 1582 int count) 1583 { 1584 for (; count > 0; count--, addr += 4) 1585 iwn_mem_write(sc, addr, val); 1586 } 1587 1588 static int 1589 iwn_eeprom_lock(struct iwn_softc *sc) 1590 { 1591 int i, ntries; 1592 1593 for (i = 0; i < 100; i++) { 1594 /* Request exclusive access to EEPROM. */ 1595 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 1596 IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1597 1598 /* Spin until we actually get the lock. */ 1599 for (ntries = 0; ntries < 100; ntries++) { 1600 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 1601 IWN_HW_IF_CONFIG_EEPROM_LOCKED) 1602 return 0; 1603 DELAY(10); 1604 } 1605 } 1606 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end timeout\n", __func__); 1607 return ETIMEDOUT; 1608 } 1609 1610 static __inline void 1611 iwn_eeprom_unlock(struct iwn_softc *sc) 1612 { 1613 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1614 } 1615 1616 /* 1617 * Initialize access by host to One Time Programmable ROM. 1618 * NB: This kind of ROM can be found on 1000 or 6000 Series only. 1619 */ 1620 static int 1621 iwn_init_otprom(struct iwn_softc *sc) 1622 { 1623 uint16_t prev, base, next; 1624 int count, error; 1625 1626 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1627 1628 /* Wait for clock stabilization before accessing prph. */ 1629 if ((error = iwn_clock_wait(sc)) != 0) 1630 return error; 1631 1632 if ((error = iwn_nic_lock(sc)) != 0) 1633 return error; 1634 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1635 DELAY(5); 1636 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1637 iwn_nic_unlock(sc); 1638 1639 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */ 1640 if (sc->base_params->shadow_ram_support) { 1641 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT, 1642 IWN_RESET_LINK_PWR_MGMT_DIS); 1643 } 1644 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER); 1645 /* Clear ECC status. */ 1646 IWN_SETBITS(sc, IWN_OTP_GP, 1647 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS); 1648 1649 /* 1650 * Find the block before last block (contains the EEPROM image) 1651 * for HW without OTP shadow RAM. 1652 */ 1653 if (! sc->base_params->shadow_ram_support) { 1654 /* Switch to absolute addressing mode. */ 1655 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS); 1656 base = prev = 0; 1657 for (count = 0; count < sc->base_params->max_ll_items; 1658 count++) { 1659 error = iwn_read_prom_data(sc, base, &next, 2); 1660 if (error != 0) 1661 return error; 1662 if (next == 0) /* End of linked-list. */ 1663 break; 1664 prev = base; 1665 base = le16toh(next); 1666 } 1667 if (count == 0 || count == sc->base_params->max_ll_items) 1668 return EIO; 1669 /* Skip "next" word. */ 1670 sc->prom_base = prev + 1; 1671 } 1672 1673 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 1674 1675 return 0; 1676 } 1677 1678 static int 1679 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count) 1680 { 1681 uint8_t *out = data; 1682 uint32_t val, tmp; 1683 int ntries; 1684 1685 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1686 1687 addr += sc->prom_base; 1688 for (; count > 0; count -= 2, addr++) { 1689 IWN_WRITE(sc, IWN_EEPROM, addr << 2); 1690 for (ntries = 0; ntries < 10; ntries++) { 1691 val = IWN_READ(sc, IWN_EEPROM); 1692 if (val & IWN_EEPROM_READ_VALID) 1693 break; 1694 DELAY(5); 1695 } 1696 if (ntries == 10) { 1697 device_printf(sc->sc_dev, 1698 "timeout reading ROM at 0x%x\n", addr); 1699 return ETIMEDOUT; 1700 } 1701 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1702 /* OTPROM, check for ECC errors. */ 1703 tmp = IWN_READ(sc, IWN_OTP_GP); 1704 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) { 1705 device_printf(sc->sc_dev, 1706 "OTPROM ECC error at 0x%x\n", addr); 1707 return EIO; 1708 } 1709 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) { 1710 /* Correctable ECC error, clear bit. */ 1711 IWN_SETBITS(sc, IWN_OTP_GP, 1712 IWN_OTP_GP_ECC_CORR_STTS); 1713 } 1714 } 1715 *out++ = val >> 16; 1716 if (count > 1) 1717 *out++ = val >> 24; 1718 } 1719 1720 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 1721 1722 return 0; 1723 } 1724 1725 static void 1726 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 1727 { 1728 if (error != 0) 1729 return; 1730 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 1731 *(bus_addr_t *)arg = segs[0].ds_addr; 1732 } 1733 1734 static int 1735 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma, 1736 void **kvap, bus_size_t size, bus_size_t alignment) 1737 { 1738 int error; 1739 1740 dma->tag = NULL; 1741 dma->size = size; 1742 1743 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment, 1744 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size, 1745 1, size, 0, NULL, NULL, &dma->tag); 1746 if (error != 0) 1747 goto fail; 1748 1749 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr, 1750 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map); 1751 if (error != 0) 1752 goto fail; 1753 1754 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size, 1755 iwn_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT); 1756 if (error != 0) 1757 goto fail; 1758 1759 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 1760 1761 if (kvap != NULL) 1762 *kvap = dma->vaddr; 1763 1764 return 0; 1765 1766 fail: iwn_dma_contig_free(dma); 1767 return error; 1768 } 1769 1770 static void 1771 iwn_dma_contig_free(struct iwn_dma_info *dma) 1772 { 1773 if (dma->vaddr != NULL) { 1774 bus_dmamap_sync(dma->tag, dma->map, 1775 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1776 bus_dmamap_unload(dma->tag, dma->map); 1777 bus_dmamem_free(dma->tag, dma->vaddr, dma->map); 1778 dma->vaddr = NULL; 1779 } 1780 if (dma->tag != NULL) { 1781 bus_dma_tag_destroy(dma->tag); 1782 dma->tag = NULL; 1783 } 1784 } 1785 1786 static int 1787 iwn_alloc_sched(struct iwn_softc *sc) 1788 { 1789 /* TX scheduler rings must be aligned on a 1KB boundary. */ 1790 return iwn_dma_contig_alloc(sc, &sc->sched_dma, (void **)&sc->sched, 1791 sc->schedsz, 1024); 1792 } 1793 1794 static void 1795 iwn_free_sched(struct iwn_softc *sc) 1796 { 1797 iwn_dma_contig_free(&sc->sched_dma); 1798 } 1799 1800 static int 1801 iwn_alloc_kw(struct iwn_softc *sc) 1802 { 1803 /* "Keep Warm" page must be aligned on a 4KB boundary. */ 1804 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 4096, 4096); 1805 } 1806 1807 static void 1808 iwn_free_kw(struct iwn_softc *sc) 1809 { 1810 iwn_dma_contig_free(&sc->kw_dma); 1811 } 1812 1813 static int 1814 iwn_alloc_ict(struct iwn_softc *sc) 1815 { 1816 /* ICT table must be aligned on a 4KB boundary. */ 1817 return iwn_dma_contig_alloc(sc, &sc->ict_dma, (void **)&sc->ict, 1818 IWN_ICT_SIZE, 4096); 1819 } 1820 1821 static void 1822 iwn_free_ict(struct iwn_softc *sc) 1823 { 1824 iwn_dma_contig_free(&sc->ict_dma); 1825 } 1826 1827 static int 1828 iwn_alloc_fwmem(struct iwn_softc *sc) 1829 { 1830 /* Must be aligned on a 16-byte boundary. */ 1831 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, sc->fwsz, 16); 1832 } 1833 1834 static void 1835 iwn_free_fwmem(struct iwn_softc *sc) 1836 { 1837 iwn_dma_contig_free(&sc->fw_dma); 1838 } 1839 1840 static int 1841 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1842 { 1843 bus_size_t size; 1844 int i, error; 1845 1846 ring->cur = 0; 1847 1848 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1849 1850 /* Allocate RX descriptors (256-byte aligned). */ 1851 size = IWN_RX_RING_COUNT * sizeof (uint32_t); 1852 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1853 size, 256); 1854 if (error != 0) { 1855 device_printf(sc->sc_dev, 1856 "%s: could not allocate RX ring DMA memory, error %d\n", 1857 __func__, error); 1858 goto fail; 1859 } 1860 1861 /* Allocate RX status area (16-byte aligned). */ 1862 error = iwn_dma_contig_alloc(sc, &ring->stat_dma, (void **)&ring->stat, 1863 sizeof (struct iwn_rx_status), 16); 1864 if (error != 0) { 1865 device_printf(sc->sc_dev, 1866 "%s: could not allocate RX status DMA memory, error %d\n", 1867 __func__, error); 1868 goto fail; 1869 } 1870 1871 /* Create RX buffer DMA tag. */ 1872 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1873 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 1874 IWN_RBUF_SIZE, 1, IWN_RBUF_SIZE, 0, NULL, NULL, &ring->data_dmat); 1875 if (error != 0) { 1876 device_printf(sc->sc_dev, 1877 "%s: could not create RX buf DMA tag, error %d\n", 1878 __func__, error); 1879 goto fail; 1880 } 1881 1882 /* 1883 * Allocate and map RX buffers. 1884 */ 1885 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1886 struct iwn_rx_data *data = &ring->data[i]; 1887 bus_addr_t paddr; 1888 1889 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1890 if (error != 0) { 1891 device_printf(sc->sc_dev, 1892 "%s: could not create RX buf DMA map, error %d\n", 1893 __func__, error); 1894 goto fail; 1895 } 1896 1897 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, 1898 IWN_RBUF_SIZE); 1899 if (data->m == NULL) { 1900 device_printf(sc->sc_dev, 1901 "%s: could not allocate RX mbuf\n", __func__); 1902 error = ENOBUFS; 1903 goto fail; 1904 } 1905 1906 error = bus_dmamap_load(ring->data_dmat, data->map, 1907 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 1908 &paddr, BUS_DMA_NOWAIT); 1909 if (error != 0 && error != EFBIG) { 1910 device_printf(sc->sc_dev, 1911 "%s: can't map mbuf, error %d\n", __func__, 1912 error); 1913 goto fail; 1914 } 1915 1916 bus_dmamap_sync(ring->data_dmat, data->map, 1917 BUS_DMASYNC_PREREAD); 1918 1919 /* Set physical address of RX buffer (256-byte aligned). */ 1920 ring->desc[i] = htole32(paddr >> 8); 1921 } 1922 1923 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1924 BUS_DMASYNC_PREWRITE); 1925 1926 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 1927 1928 return 0; 1929 1930 fail: iwn_free_rx_ring(sc, ring); 1931 1932 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__); 1933 1934 return error; 1935 } 1936 1937 static void 1938 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1939 { 1940 int ntries; 1941 1942 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 1943 1944 if (iwn_nic_lock(sc) == 0) { 1945 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 1946 for (ntries = 0; ntries < 1000; ntries++) { 1947 if (IWN_READ(sc, IWN_FH_RX_STATUS) & 1948 IWN_FH_RX_STATUS_IDLE) 1949 break; 1950 DELAY(10); 1951 } 1952 iwn_nic_unlock(sc); 1953 } 1954 ring->cur = 0; 1955 sc->last_rx_valid = 0; 1956 } 1957 1958 static void 1959 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1960 { 1961 int i; 1962 1963 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__); 1964 1965 iwn_dma_contig_free(&ring->desc_dma); 1966 iwn_dma_contig_free(&ring->stat_dma); 1967 1968 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1969 struct iwn_rx_data *data = &ring->data[i]; 1970 1971 if (data->m != NULL) { 1972 bus_dmamap_sync(ring->data_dmat, data->map, 1973 BUS_DMASYNC_POSTREAD); 1974 bus_dmamap_unload(ring->data_dmat, data->map); 1975 m_freem(data->m); 1976 data->m = NULL; 1977 } 1978 if (data->map != NULL) 1979 bus_dmamap_destroy(ring->data_dmat, data->map); 1980 } 1981 if (ring->data_dmat != NULL) { 1982 bus_dma_tag_destroy(ring->data_dmat); 1983 ring->data_dmat = NULL; 1984 } 1985 } 1986 1987 static int 1988 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid) 1989 { 1990 bus_addr_t paddr; 1991 bus_size_t size; 1992 int i, error; 1993 1994 ring->qid = qid; 1995 ring->queued = 0; 1996 ring->cur = 0; 1997 1998 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1999 2000 /* Allocate TX descriptors (256-byte aligned). */ 2001 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc); 2002 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 2003 size, 256); 2004 if (error != 0) { 2005 device_printf(sc->sc_dev, 2006 "%s: could not allocate TX ring DMA memory, error %d\n", 2007 __func__, error); 2008 goto fail; 2009 } 2010 2011 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd); 2012 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 2013 size, 4); 2014 if (error != 0) { 2015 device_printf(sc->sc_dev, 2016 "%s: could not allocate TX cmd DMA memory, error %d\n", 2017 __func__, error); 2018 goto fail; 2019 } 2020 2021 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 2022 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 2023 IWN_MAX_SCATTER - 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 2024 if (error != 0) { 2025 device_printf(sc->sc_dev, 2026 "%s: could not create TX buf DMA tag, error %d\n", 2027 __func__, error); 2028 goto fail; 2029 } 2030 2031 paddr = ring->cmd_dma.paddr; 2032 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 2033 struct iwn_tx_data *data = &ring->data[i]; 2034 2035 data->cmd_paddr = paddr; 2036 data->scratch_paddr = paddr + 12; 2037 paddr += sizeof (struct iwn_tx_cmd); 2038 2039 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 2040 if (error != 0) { 2041 device_printf(sc->sc_dev, 2042 "%s: could not create TX buf DMA map, error %d\n", 2043 __func__, error); 2044 goto fail; 2045 } 2046 } 2047 2048 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2049 2050 return 0; 2051 2052 fail: iwn_free_tx_ring(sc, ring); 2053 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__); 2054 return error; 2055 } 2056 2057 static void 2058 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 2059 { 2060 int i; 2061 2062 DPRINTF(sc, IWN_DEBUG_TRACE, "->doing %s \n", __func__); 2063 2064 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 2065 struct iwn_tx_data *data = &ring->data[i]; 2066 2067 if (data->m != NULL) { 2068 bus_dmamap_sync(ring->data_dmat, data->map, 2069 BUS_DMASYNC_POSTWRITE); 2070 bus_dmamap_unload(ring->data_dmat, data->map); 2071 m_freem(data->m); 2072 data->m = NULL; 2073 } 2074 if (data->ni != NULL) { 2075 ieee80211_free_node(data->ni); 2076 data->ni = NULL; 2077 } 2078 } 2079 /* Clear TX descriptors. */ 2080 memset(ring->desc, 0, ring->desc_dma.size); 2081 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2082 BUS_DMASYNC_PREWRITE); 2083 sc->qfullmsk &= ~(1 << ring->qid); 2084 ring->queued = 0; 2085 ring->cur = 0; 2086 } 2087 2088 static void 2089 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 2090 { 2091 int i; 2092 2093 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__); 2094 2095 iwn_dma_contig_free(&ring->desc_dma); 2096 iwn_dma_contig_free(&ring->cmd_dma); 2097 2098 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 2099 struct iwn_tx_data *data = &ring->data[i]; 2100 2101 if (data->m != NULL) { 2102 bus_dmamap_sync(ring->data_dmat, data->map, 2103 BUS_DMASYNC_POSTWRITE); 2104 bus_dmamap_unload(ring->data_dmat, data->map); 2105 m_freem(data->m); 2106 } 2107 if (data->map != NULL) 2108 bus_dmamap_destroy(ring->data_dmat, data->map); 2109 } 2110 if (ring->data_dmat != NULL) { 2111 bus_dma_tag_destroy(ring->data_dmat); 2112 ring->data_dmat = NULL; 2113 } 2114 } 2115 2116 static void 2117 iwn5000_ict_reset(struct iwn_softc *sc) 2118 { 2119 /* Disable interrupts. */ 2120 IWN_WRITE(sc, IWN_INT_MASK, 0); 2121 2122 /* Reset ICT table. */ 2123 memset(sc->ict, 0, IWN_ICT_SIZE); 2124 sc->ict_cur = 0; 2125 2126 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, 2127 BUS_DMASYNC_PREWRITE); 2128 2129 /* Set physical address of ICT table (4KB aligned). */ 2130 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__); 2131 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | 2132 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12); 2133 2134 /* Enable periodic RX interrupt. */ 2135 sc->int_mask |= IWN_INT_RX_PERIODIC; 2136 /* Switch to ICT interrupt mode in driver. */ 2137 sc->sc_flags |= IWN_FLAG_USE_ICT; 2138 2139 /* Re-enable interrupts. */ 2140 IWN_WRITE(sc, IWN_INT, 0xffffffff); 2141 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 2142 } 2143 2144 static int 2145 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 2146 { 2147 struct iwn_ops *ops = &sc->ops; 2148 uint16_t val; 2149 int error; 2150 2151 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2152 2153 /* Check whether adapter has an EEPROM or an OTPROM. */ 2154 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 && 2155 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP)) 2156 sc->sc_flags |= IWN_FLAG_HAS_OTPROM; 2157 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n", 2158 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM"); 2159 2160 /* Adapter has to be powered on for EEPROM access to work. */ 2161 if ((error = iwn_apm_init(sc)) != 0) { 2162 device_printf(sc->sc_dev, 2163 "%s: could not power ON adapter, error %d\n", __func__, 2164 error); 2165 return error; 2166 } 2167 2168 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) { 2169 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__); 2170 return EIO; 2171 } 2172 if ((error = iwn_eeprom_lock(sc)) != 0) { 2173 device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n", 2174 __func__, error); 2175 return error; 2176 } 2177 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 2178 if ((error = iwn_init_otprom(sc)) != 0) { 2179 device_printf(sc->sc_dev, 2180 "%s: could not initialize OTPROM, error %d\n", 2181 __func__, error); 2182 return error; 2183 } 2184 } 2185 2186 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2); 2187 DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val)); 2188 /* Check if HT support is bonded out. */ 2189 if (val & htole16(IWN_EEPROM_SKU_CAP_11N)) 2190 sc->sc_flags |= IWN_FLAG_HAS_11N; 2191 2192 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2); 2193 sc->rfcfg = le16toh(val); 2194 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg); 2195 /* Read Tx/Rx chains from ROM unless it's known to be broken. */ 2196 if (sc->txchainmask == 0) 2197 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg); 2198 if (sc->rxchainmask == 0) 2199 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg); 2200 2201 /* Read MAC address. */ 2202 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6); 2203 2204 /* Read adapter-specific information from EEPROM. */ 2205 ops->read_eeprom(sc); 2206 2207 iwn_apm_stop(sc); /* Power OFF adapter. */ 2208 2209 iwn_eeprom_unlock(sc); 2210 2211 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2212 2213 return 0; 2214 } 2215 2216 static void 2217 iwn4965_read_eeprom(struct iwn_softc *sc) 2218 { 2219 uint32_t addr; 2220 uint16_t val; 2221 int i; 2222 2223 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2224 2225 /* Read regulatory domain (4 ASCII characters). */ 2226 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4); 2227 2228 /* Read the list of authorized channels (20MHz & 40MHz). */ 2229 for (i = 0; i < IWN_NBANDS - 1; i++) { 2230 addr = iwn4965_regulatory_bands[i]; 2231 iwn_read_eeprom_channels(sc, i, addr); 2232 } 2233 2234 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */ 2235 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2); 2236 sc->maxpwr2GHz = val & 0xff; 2237 sc->maxpwr5GHz = val >> 8; 2238 /* Check that EEPROM values are within valid range. */ 2239 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 2240 sc->maxpwr5GHz = 38; 2241 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 2242 sc->maxpwr2GHz = 38; 2243 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n", 2244 sc->maxpwr2GHz, sc->maxpwr5GHz); 2245 2246 /* Read samples for each TX power group. */ 2247 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands, 2248 sizeof sc->bands); 2249 2250 /* Read voltage at which samples were taken. */ 2251 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2); 2252 sc->eeprom_voltage = (int16_t)le16toh(val); 2253 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n", 2254 sc->eeprom_voltage); 2255 2256 #ifdef IWN_DEBUG 2257 /* Print samples. */ 2258 if (sc->sc_debug & IWN_DEBUG_ANY) { 2259 for (i = 0; i < IWN_NBANDS - 1; i++) 2260 iwn4965_print_power_group(sc, i); 2261 } 2262 #endif 2263 2264 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2265 } 2266 2267 #ifdef IWN_DEBUG 2268 static void 2269 iwn4965_print_power_group(struct iwn_softc *sc, int i) 2270 { 2271 struct iwn4965_eeprom_band *band = &sc->bands[i]; 2272 struct iwn4965_eeprom_chan_samples *chans = band->chans; 2273 int j, c; 2274 2275 printf("===band %d===\n", i); 2276 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 2277 printf("chan1 num=%d\n", chans[0].num); 2278 for (c = 0; c < 2; c++) { 2279 for (j = 0; j < IWN_NSAMPLES; j++) { 2280 printf("chain %d, sample %d: temp=%d gain=%d " 2281 "power=%d pa_det=%d\n", c, j, 2282 chans[0].samples[c][j].temp, 2283 chans[0].samples[c][j].gain, 2284 chans[0].samples[c][j].power, 2285 chans[0].samples[c][j].pa_det); 2286 } 2287 } 2288 printf("chan2 num=%d\n", chans[1].num); 2289 for (c = 0; c < 2; c++) { 2290 for (j = 0; j < IWN_NSAMPLES; j++) { 2291 printf("chain %d, sample %d: temp=%d gain=%d " 2292 "power=%d pa_det=%d\n", c, j, 2293 chans[1].samples[c][j].temp, 2294 chans[1].samples[c][j].gain, 2295 chans[1].samples[c][j].power, 2296 chans[1].samples[c][j].pa_det); 2297 } 2298 } 2299 } 2300 #endif 2301 2302 static void 2303 iwn5000_read_eeprom(struct iwn_softc *sc) 2304 { 2305 struct iwn5000_eeprom_calib_hdr hdr; 2306 int32_t volt; 2307 uint32_t base, addr; 2308 uint16_t val; 2309 int i; 2310 2311 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2312 2313 /* Read regulatory domain (4 ASCII characters). */ 2314 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2315 base = le16toh(val); 2316 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN, 2317 sc->eeprom_domain, 4); 2318 2319 /* Read the list of authorized channels (20MHz & 40MHz). */ 2320 for (i = 0; i < IWN_NBANDS - 1; i++) { 2321 addr = base + sc->base_params->regulatory_bands[i]; 2322 iwn_read_eeprom_channels(sc, i, addr); 2323 } 2324 2325 /* Read enhanced TX power information for 6000 Series. */ 2326 if (sc->base_params->enhanced_TX_power) 2327 iwn_read_eeprom_enhinfo(sc); 2328 2329 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2); 2330 base = le16toh(val); 2331 iwn_read_prom_data(sc, base, &hdr, sizeof hdr); 2332 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2333 "%s: calib version=%u pa type=%u voltage=%u\n", __func__, 2334 hdr.version, hdr.pa_type, le16toh(hdr.volt)); 2335 sc->calib_ver = hdr.version; 2336 2337 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) { 2338 sc->eeprom_voltage = le16toh(hdr.volt); 2339 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 2340 sc->eeprom_temp_high=le16toh(val); 2341 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 2342 sc->eeprom_temp = le16toh(val); 2343 } 2344 2345 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 2346 /* Compute temperature offset. */ 2347 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 2348 sc->eeprom_temp = le16toh(val); 2349 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 2350 volt = le16toh(val); 2351 sc->temp_off = sc->eeprom_temp - (volt / -5); 2352 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n", 2353 sc->eeprom_temp, volt, sc->temp_off); 2354 } else { 2355 /* Read crystal calibration. */ 2356 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL, 2357 &sc->eeprom_crystal, sizeof (uint32_t)); 2358 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n", 2359 le32toh(sc->eeprom_crystal)); 2360 } 2361 2362 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2363 2364 } 2365 2366 /* 2367 * Translate EEPROM flags to net80211. 2368 */ 2369 static uint32_t 2370 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel) 2371 { 2372 uint32_t nflags; 2373 2374 nflags = 0; 2375 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0) 2376 nflags |= IEEE80211_CHAN_PASSIVE; 2377 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0) 2378 nflags |= IEEE80211_CHAN_NOADHOC; 2379 if (channel->flags & IWN_EEPROM_CHAN_RADAR) { 2380 nflags |= IEEE80211_CHAN_DFS; 2381 /* XXX apparently IBSS may still be marked */ 2382 nflags |= IEEE80211_CHAN_NOADHOC; 2383 } 2384 2385 return nflags; 2386 } 2387 2388 static void 2389 iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans, 2390 struct ieee80211_channel chans[]) 2391 { 2392 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 2393 const struct iwn_chan_band *band = &iwn_bands[n]; 2394 uint8_t bands[IEEE80211_MODE_BYTES]; 2395 uint8_t chan; 2396 int i, error, nflags; 2397 2398 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2399 2400 memset(bands, 0, sizeof(bands)); 2401 if (n == 0) { 2402 setbit(bands, IEEE80211_MODE_11B); 2403 setbit(bands, IEEE80211_MODE_11G); 2404 if (sc->sc_flags & IWN_FLAG_HAS_11N) 2405 setbit(bands, IEEE80211_MODE_11NG); 2406 } else { 2407 setbit(bands, IEEE80211_MODE_11A); 2408 if (sc->sc_flags & IWN_FLAG_HAS_11N) 2409 setbit(bands, IEEE80211_MODE_11NA); 2410 } 2411 2412 for (i = 0; i < band->nchan; i++) { 2413 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 2414 DPRINTF(sc, IWN_DEBUG_RESET, 2415 "skip chan %d flags 0x%x maxpwr %d\n", 2416 band->chan[i], channels[i].flags, 2417 channels[i].maxpwr); 2418 continue; 2419 } 2420 2421 chan = band->chan[i]; 2422 nflags = iwn_eeprom_channel_flags(&channels[i]); 2423 error = ieee80211_add_channel(chans, maxchans, nchans, 2424 chan, 0, channels[i].maxpwr, nflags, bands); 2425 if (error != 0) 2426 break; 2427 2428 /* Save maximum allowed TX power for this channel. */ 2429 /* XXX wrong */ 2430 sc->maxpwr[chan] = channels[i].maxpwr; 2431 2432 DPRINTF(sc, IWN_DEBUG_RESET, 2433 "add chan %d flags 0x%x maxpwr %d\n", chan, 2434 channels[i].flags, channels[i].maxpwr); 2435 } 2436 2437 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2438 2439 } 2440 2441 static void 2442 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans, 2443 struct ieee80211_channel chans[]) 2444 { 2445 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 2446 const struct iwn_chan_band *band = &iwn_bands[n]; 2447 uint8_t chan; 2448 int i, error, nflags; 2449 2450 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s start\n", __func__); 2451 2452 if (!(sc->sc_flags & IWN_FLAG_HAS_11N)) { 2453 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end no 11n\n", __func__); 2454 return; 2455 } 2456 2457 for (i = 0; i < band->nchan; i++) { 2458 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 2459 DPRINTF(sc, IWN_DEBUG_RESET, 2460 "skip chan %d flags 0x%x maxpwr %d\n", 2461 band->chan[i], channels[i].flags, 2462 channels[i].maxpwr); 2463 continue; 2464 } 2465 2466 chan = band->chan[i]; 2467 nflags = iwn_eeprom_channel_flags(&channels[i]); 2468 nflags |= (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A); 2469 error = ieee80211_add_channel_ht40(chans, maxchans, nchans, 2470 chan, channels[i].maxpwr, nflags); 2471 switch (error) { 2472 case EINVAL: 2473 device_printf(sc->sc_dev, 2474 "%s: no entry for channel %d\n", __func__, chan); 2475 continue; 2476 case ENOENT: 2477 DPRINTF(sc, IWN_DEBUG_RESET, 2478 "%s: skip chan %d, extension channel not found\n", 2479 __func__, chan); 2480 continue; 2481 case ENOBUFS: 2482 device_printf(sc->sc_dev, 2483 "%s: channel table is full!\n", __func__); 2484 break; 2485 case 0: 2486 DPRINTF(sc, IWN_DEBUG_RESET, 2487 "add ht40 chan %d flags 0x%x maxpwr %d\n", 2488 chan, channels[i].flags, channels[i].maxpwr); 2489 /* FALLTHROUGH */ 2490 default: 2491 break; 2492 } 2493 } 2494 2495 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2496 2497 } 2498 2499 static void 2500 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr) 2501 { 2502 struct ieee80211com *ic = &sc->sc_ic; 2503 2504 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n], 2505 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan)); 2506 2507 if (n < 5) { 2508 iwn_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2509 ic->ic_channels); 2510 } else { 2511 iwn_read_eeprom_ht40(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2512 ic->ic_channels); 2513 } 2514 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 2515 } 2516 2517 static struct iwn_eeprom_chan * 2518 iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c) 2519 { 2520 int band, chan, i, j; 2521 2522 if (IEEE80211_IS_CHAN_HT40(c)) { 2523 band = IEEE80211_IS_CHAN_5GHZ(c) ? 6 : 5; 2524 if (IEEE80211_IS_CHAN_HT40D(c)) 2525 chan = c->ic_extieee; 2526 else 2527 chan = c->ic_ieee; 2528 for (i = 0; i < iwn_bands[band].nchan; i++) { 2529 if (iwn_bands[band].chan[i] == chan) 2530 return &sc->eeprom_channels[band][i]; 2531 } 2532 } else { 2533 for (j = 0; j < 5; j++) { 2534 for (i = 0; i < iwn_bands[j].nchan; i++) { 2535 if (iwn_bands[j].chan[i] == c->ic_ieee && 2536 ((j == 0) ^ IEEE80211_IS_CHAN_A(c)) == 1) 2537 return &sc->eeprom_channels[j][i]; 2538 } 2539 } 2540 } 2541 return NULL; 2542 } 2543 2544 static void 2545 iwn_getradiocaps(struct ieee80211com *ic, 2546 int maxchans, int *nchans, struct ieee80211_channel chans[]) 2547 { 2548 struct iwn_softc *sc = ic->ic_softc; 2549 int i; 2550 2551 /* Parse the list of authorized channels. */ 2552 for (i = 0; i < 5 && *nchans < maxchans; i++) 2553 iwn_read_eeprom_band(sc, i, maxchans, nchans, chans); 2554 for (i = 5; i < IWN_NBANDS - 1 && *nchans < maxchans; i++) 2555 iwn_read_eeprom_ht40(sc, i, maxchans, nchans, chans); 2556 } 2557 2558 /* 2559 * Enforce flags read from EEPROM. 2560 */ 2561 static int 2562 iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 2563 int nchan, struct ieee80211_channel chans[]) 2564 { 2565 struct iwn_softc *sc = ic->ic_softc; 2566 int i; 2567 2568 for (i = 0; i < nchan; i++) { 2569 struct ieee80211_channel *c = &chans[i]; 2570 struct iwn_eeprom_chan *channel; 2571 2572 channel = iwn_find_eeprom_channel(sc, c); 2573 if (channel == NULL) { 2574 ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n", 2575 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 2576 return EINVAL; 2577 } 2578 c->ic_flags |= iwn_eeprom_channel_flags(channel); 2579 } 2580 2581 return 0; 2582 } 2583 2584 static void 2585 iwn_read_eeprom_enhinfo(struct iwn_softc *sc) 2586 { 2587 struct iwn_eeprom_enhinfo enhinfo[35]; 2588 struct ieee80211com *ic = &sc->sc_ic; 2589 struct ieee80211_channel *c; 2590 uint16_t val, base; 2591 int8_t maxpwr; 2592 uint8_t flags; 2593 int i, j; 2594 2595 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2596 2597 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2598 base = le16toh(val); 2599 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO, 2600 enhinfo, sizeof enhinfo); 2601 2602 for (i = 0; i < nitems(enhinfo); i++) { 2603 flags = enhinfo[i].flags; 2604 if (!(flags & IWN_ENHINFO_VALID)) 2605 continue; /* Skip invalid entries. */ 2606 2607 maxpwr = 0; 2608 if (sc->txchainmask & IWN_ANT_A) 2609 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]); 2610 if (sc->txchainmask & IWN_ANT_B) 2611 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]); 2612 if (sc->txchainmask & IWN_ANT_C) 2613 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]); 2614 if (sc->ntxchains == 2) 2615 maxpwr = MAX(maxpwr, enhinfo[i].mimo2); 2616 else if (sc->ntxchains == 3) 2617 maxpwr = MAX(maxpwr, enhinfo[i].mimo3); 2618 2619 for (j = 0; j < ic->ic_nchans; j++) { 2620 c = &ic->ic_channels[j]; 2621 if ((flags & IWN_ENHINFO_5GHZ)) { 2622 if (!IEEE80211_IS_CHAN_A(c)) 2623 continue; 2624 } else if ((flags & IWN_ENHINFO_OFDM)) { 2625 if (!IEEE80211_IS_CHAN_G(c)) 2626 continue; 2627 } else if (!IEEE80211_IS_CHAN_B(c)) 2628 continue; 2629 if ((flags & IWN_ENHINFO_HT40)) { 2630 if (!IEEE80211_IS_CHAN_HT40(c)) 2631 continue; 2632 } else { 2633 if (IEEE80211_IS_CHAN_HT40(c)) 2634 continue; 2635 } 2636 if (enhinfo[i].chan != 0 && 2637 enhinfo[i].chan != c->ic_ieee) 2638 continue; 2639 2640 DPRINTF(sc, IWN_DEBUG_RESET, 2641 "channel %d(%x), maxpwr %d\n", c->ic_ieee, 2642 c->ic_flags, maxpwr / 2); 2643 c->ic_maxregpower = maxpwr / 2; 2644 c->ic_maxpower = maxpwr; 2645 } 2646 } 2647 2648 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2649 2650 } 2651 2652 static struct ieee80211_node * 2653 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2654 { 2655 struct iwn_node *wn; 2656 2657 wn = malloc(sizeof (struct iwn_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2658 if (wn == NULL) 2659 return (NULL); 2660 2661 wn->id = IWN_ID_UNDEFINED; 2662 2663 return (&wn->ni); 2664 } 2665 2666 static __inline int 2667 rate2plcp(int rate) 2668 { 2669 switch (rate & 0xff) { 2670 case 12: return 0xd; 2671 case 18: return 0xf; 2672 case 24: return 0x5; 2673 case 36: return 0x7; 2674 case 48: return 0x9; 2675 case 72: return 0xb; 2676 case 96: return 0x1; 2677 case 108: return 0x3; 2678 case 2: return 10; 2679 case 4: return 20; 2680 case 11: return 55; 2681 case 22: return 110; 2682 } 2683 return 0; 2684 } 2685 2686 static __inline uint8_t 2687 plcp2rate(const uint8_t rate_plcp) 2688 { 2689 switch (rate_plcp) { 2690 case 0xd: return 12; 2691 case 0xf: return 18; 2692 case 0x5: return 24; 2693 case 0x7: return 36; 2694 case 0x9: return 48; 2695 case 0xb: return 72; 2696 case 0x1: return 96; 2697 case 0x3: return 108; 2698 case 10: return 2; 2699 case 20: return 4; 2700 case 55: return 11; 2701 case 110: return 22; 2702 default: return 0; 2703 } 2704 } 2705 2706 static int 2707 iwn_get_1stream_tx_antmask(struct iwn_softc *sc) 2708 { 2709 2710 return IWN_LSB(sc->txchainmask); 2711 } 2712 2713 static int 2714 iwn_get_2stream_tx_antmask(struct iwn_softc *sc) 2715 { 2716 int tx; 2717 2718 /* 2719 * The '2 stream' setup is a bit .. odd. 2720 * 2721 * For NICs that support only 1 antenna, default to IWN_ANT_AB or 2722 * the firmware panics (eg Intel 5100.) 2723 * 2724 * For NICs that support two antennas, we use ANT_AB. 2725 * 2726 * For NICs that support three antennas, we use the two that 2727 * wasn't the default one. 2728 * 2729 * XXX TODO: if bluetooth (full concurrent) is enabled, restrict 2730 * this to only one antenna. 2731 */ 2732 2733 /* Default - transmit on the other antennas */ 2734 tx = (sc->txchainmask & ~IWN_LSB(sc->txchainmask)); 2735 2736 /* Now, if it's zero, set it to IWN_ANT_AB, so to not panic firmware */ 2737 if (tx == 0) 2738 tx = IWN_ANT_AB; 2739 2740 /* 2741 * If the NIC is a two-stream TX NIC, configure the TX mask to 2742 * the default chainmask 2743 */ 2744 else if (sc->ntxchains == 2) 2745 tx = sc->txchainmask; 2746 2747 return (tx); 2748 } 2749 2750 2751 2752 /* 2753 * Calculate the required PLCP value from the given rate, 2754 * to the given node. 2755 * 2756 * This will take the node configuration (eg 11n, rate table 2757 * setup, etc) into consideration. 2758 */ 2759 static uint32_t 2760 iwn_rate_to_plcp(struct iwn_softc *sc, struct ieee80211_node *ni, 2761 uint8_t rate) 2762 { 2763 struct ieee80211com *ic = ni->ni_ic; 2764 uint32_t plcp = 0; 2765 int ridx; 2766 2767 /* 2768 * If it's an MCS rate, let's set the plcp correctly 2769 * and set the relevant flags based on the node config. 2770 */ 2771 if (rate & IEEE80211_RATE_MCS) { 2772 /* 2773 * Set the initial PLCP value to be between 0->31 for 2774 * MCS 0 -> MCS 31, then set the "I'm an MCS rate!" 2775 * flag. 2776 */ 2777 plcp = IEEE80211_RV(rate) | IWN_RFLAG_MCS; 2778 2779 /* 2780 * XXX the following should only occur if both 2781 * the local configuration _and_ the remote node 2782 * advertise these capabilities. Thus this code 2783 * may need fixing! 2784 */ 2785 2786 /* 2787 * Set the channel width and guard interval. 2788 */ 2789 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 2790 plcp |= IWN_RFLAG_HT40; 2791 if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) 2792 plcp |= IWN_RFLAG_SGI; 2793 } else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) { 2794 plcp |= IWN_RFLAG_SGI; 2795 } 2796 2797 /* 2798 * Ensure the selected rate matches the link quality 2799 * table entries being used. 2800 */ 2801 if (rate > 0x8f) 2802 plcp |= IWN_RFLAG_ANT(sc->txchainmask); 2803 else if (rate > 0x87) 2804 plcp |= IWN_RFLAG_ANT(iwn_get_2stream_tx_antmask(sc)); 2805 else 2806 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc)); 2807 } else { 2808 /* 2809 * Set the initial PLCP - fine for both 2810 * OFDM and CCK rates. 2811 */ 2812 plcp = rate2plcp(rate); 2813 2814 /* Set CCK flag if it's CCK */ 2815 2816 /* XXX It would be nice to have a method 2817 * to map the ridx -> phy table entry 2818 * so we could just query that, rather than 2819 * this hack to check against IWN_RIDX_OFDM6. 2820 */ 2821 ridx = ieee80211_legacy_rate_lookup(ic->ic_rt, 2822 rate & IEEE80211_RATE_VAL); 2823 if (ridx < IWN_RIDX_OFDM6 && 2824 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2825 plcp |= IWN_RFLAG_CCK; 2826 2827 /* Set antenna configuration */ 2828 /* XXX TODO: is this the right antenna to use for legacy? */ 2829 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc)); 2830 } 2831 2832 DPRINTF(sc, IWN_DEBUG_TXRATE, "%s: rate=0x%02x, plcp=0x%08x\n", 2833 __func__, 2834 rate, 2835 plcp); 2836 2837 return (htole32(plcp)); 2838 } 2839 2840 static void 2841 iwn_newassoc(struct ieee80211_node *ni, int isnew) 2842 { 2843 /* Doesn't do anything at the moment */ 2844 } 2845 2846 static int 2847 iwn_media_change(struct ifnet *ifp) 2848 { 2849 int error; 2850 2851 error = ieee80211_media_change(ifp); 2852 /* NB: only the fixed rate can change and that doesn't need a reset */ 2853 return (error == ENETRESET ? 0 : error); 2854 } 2855 2856 static int 2857 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2858 { 2859 struct iwn_vap *ivp = IWN_VAP(vap); 2860 struct ieee80211com *ic = vap->iv_ic; 2861 struct iwn_softc *sc = ic->ic_softc; 2862 int error = 0; 2863 2864 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2865 2866 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__, 2867 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]); 2868 2869 IEEE80211_UNLOCK(ic); 2870 IWN_LOCK(sc); 2871 callout_stop(&sc->calib_to); 2872 2873 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX]; 2874 2875 switch (nstate) { 2876 case IEEE80211_S_ASSOC: 2877 if (vap->iv_state != IEEE80211_S_RUN) 2878 break; 2879 /* FALLTHROUGH */ 2880 case IEEE80211_S_AUTH: 2881 if (vap->iv_state == IEEE80211_S_AUTH) 2882 break; 2883 2884 /* 2885 * !AUTH -> AUTH transition requires state reset to handle 2886 * reassociations correctly. 2887 */ 2888 sc->rxon->associd = 0; 2889 sc->rxon->filter &= ~htole32(IWN_FILTER_BSS); 2890 sc->calib.state = IWN_CALIB_STATE_INIT; 2891 2892 /* Wait until we hear a beacon before we transmit */ 2893 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 2894 sc->sc_beacon_wait = 1; 2895 2896 if ((error = iwn_auth(sc, vap)) != 0) { 2897 device_printf(sc->sc_dev, 2898 "%s: could not move to auth state\n", __func__); 2899 } 2900 break; 2901 2902 case IEEE80211_S_RUN: 2903 /* 2904 * RUN -> RUN transition; Just restart the timers. 2905 */ 2906 if (vap->iv_state == IEEE80211_S_RUN) { 2907 sc->calib_cnt = 0; 2908 break; 2909 } 2910 2911 /* Wait until we hear a beacon before we transmit */ 2912 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 2913 sc->sc_beacon_wait = 1; 2914 2915 /* 2916 * !RUN -> RUN requires setting the association id 2917 * which is done with a firmware cmd. We also defer 2918 * starting the timers until that work is done. 2919 */ 2920 if ((error = iwn_run(sc, vap)) != 0) { 2921 device_printf(sc->sc_dev, 2922 "%s: could not move to run state\n", __func__); 2923 } 2924 break; 2925 2926 case IEEE80211_S_INIT: 2927 sc->calib.state = IWN_CALIB_STATE_INIT; 2928 /* 2929 * Purge the xmit queue so we don't have old frames 2930 * during a new association attempt. 2931 */ 2932 sc->sc_beacon_wait = 0; 2933 iwn_xmit_queue_drain(sc); 2934 break; 2935 2936 default: 2937 break; 2938 } 2939 IWN_UNLOCK(sc); 2940 IEEE80211_LOCK(ic); 2941 if (error != 0){ 2942 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__); 2943 return error; 2944 } 2945 2946 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 2947 2948 return ivp->iv_newstate(vap, nstate, arg); 2949 } 2950 2951 static void 2952 iwn_calib_timeout(void *arg) 2953 { 2954 struct iwn_softc *sc = arg; 2955 2956 IWN_LOCK_ASSERT(sc); 2957 2958 /* Force automatic TX power calibration every 60 secs. */ 2959 if (++sc->calib_cnt >= 120) { 2960 uint32_t flags = 0; 2961 2962 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n", 2963 "sending request for statistics"); 2964 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, 2965 sizeof flags, 1); 2966 sc->calib_cnt = 0; 2967 } 2968 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 2969 sc); 2970 } 2971 2972 /* 2973 * Process an RX_PHY firmware notification. This is usually immediately 2974 * followed by an MPDU_RX_DONE notification. 2975 */ 2976 static void 2977 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc) 2978 { 2979 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1); 2980 2981 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__); 2982 2983 /* Save RX statistics, they will be used on MPDU_RX_DONE. */ 2984 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 2985 sc->last_rx_valid = 1; 2986 } 2987 2988 /* 2989 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification. 2990 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one. 2991 */ 2992 static void 2993 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2994 struct iwn_rx_data *data) 2995 { 2996 struct iwn_ops *ops = &sc->ops; 2997 struct ieee80211com *ic = &sc->sc_ic; 2998 struct iwn_rx_ring *ring = &sc->rxq; 2999 struct ieee80211_frame_min *wh; 3000 struct ieee80211_node *ni; 3001 struct mbuf *m, *m1; 3002 struct iwn_rx_stat *stat; 3003 caddr_t head; 3004 bus_addr_t paddr; 3005 uint32_t flags; 3006 int error, len, rssi, nf; 3007 3008 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3009 3010 if (desc->type == IWN_MPDU_RX_DONE) { 3011 /* Check for prior RX_PHY notification. */ 3012 if (!sc->last_rx_valid) { 3013 DPRINTF(sc, IWN_DEBUG_ANY, 3014 "%s: missing RX_PHY\n", __func__); 3015 return; 3016 } 3017 stat = &sc->last_rx_stat; 3018 } else 3019 stat = (struct iwn_rx_stat *)(desc + 1); 3020 3021 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 3022 device_printf(sc->sc_dev, 3023 "%s: invalid RX statistic header, len %d\n", __func__, 3024 stat->cfg_phy_len); 3025 return; 3026 } 3027 if (desc->type == IWN_MPDU_RX_DONE) { 3028 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1); 3029 head = (caddr_t)(mpdu + 1); 3030 len = le16toh(mpdu->len); 3031 } else { 3032 head = (caddr_t)(stat + 1) + stat->cfg_phy_len; 3033 len = le16toh(stat->len); 3034 } 3035 3036 flags = le32toh(*(uint32_t *)(head + len)); 3037 3038 /* Discard frames with a bad FCS early. */ 3039 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 3040 DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n", 3041 __func__, flags); 3042 counter_u64_add(ic->ic_ierrors, 1); 3043 return; 3044 } 3045 /* Discard frames that are too short. */ 3046 if (len < sizeof (struct ieee80211_frame_ack)) { 3047 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n", 3048 __func__, len); 3049 counter_u64_add(ic->ic_ierrors, 1); 3050 return; 3051 } 3052 3053 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE); 3054 if (m1 == NULL) { 3055 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n", 3056 __func__); 3057 counter_u64_add(ic->ic_ierrors, 1); 3058 return; 3059 } 3060 bus_dmamap_unload(ring->data_dmat, data->map); 3061 3062 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *), 3063 IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 3064 if (error != 0 && error != EFBIG) { 3065 device_printf(sc->sc_dev, 3066 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 3067 m_freem(m1); 3068 3069 /* Try to reload the old mbuf. */ 3070 error = bus_dmamap_load(ring->data_dmat, data->map, 3071 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 3072 &paddr, BUS_DMA_NOWAIT); 3073 if (error != 0 && error != EFBIG) { 3074 panic("%s: could not load old RX mbuf", __func__); 3075 } 3076 bus_dmamap_sync(ring->data_dmat, data->map, 3077 BUS_DMASYNC_PREREAD); 3078 /* Physical address may have changed. */ 3079 ring->desc[ring->cur] = htole32(paddr >> 8); 3080 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3081 BUS_DMASYNC_PREWRITE); 3082 counter_u64_add(ic->ic_ierrors, 1); 3083 return; 3084 } 3085 3086 bus_dmamap_sync(ring->data_dmat, data->map, 3087 BUS_DMASYNC_PREREAD); 3088 3089 m = data->m; 3090 data->m = m1; 3091 /* Update RX descriptor. */ 3092 ring->desc[ring->cur] = htole32(paddr >> 8); 3093 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3094 BUS_DMASYNC_PREWRITE); 3095 3096 /* Finalize mbuf. */ 3097 m->m_data = head; 3098 m->m_pkthdr.len = m->m_len = len; 3099 3100 /* Grab a reference to the source node. */ 3101 wh = mtod(m, struct ieee80211_frame_min *); 3102 if (len >= sizeof(struct ieee80211_frame_min)) 3103 ni = ieee80211_find_rxnode(ic, wh); 3104 else 3105 ni = NULL; 3106 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN && 3107 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95; 3108 3109 rssi = ops->get_rssi(sc, stat); 3110 3111 if (ieee80211_radiotap_active(ic)) { 3112 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 3113 uint32_t rate = le32toh(stat->rate); 3114 3115 tap->wr_flags = 0; 3116 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) 3117 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3118 tap->wr_dbm_antsignal = (int8_t)rssi; 3119 tap->wr_dbm_antnoise = (int8_t)nf; 3120 tap->wr_tsft = stat->tstamp; 3121 if (rate & IWN_RFLAG_MCS) { 3122 tap->wr_rate = rate & IWN_RFLAG_RATE_MCS; 3123 tap->wr_rate |= IEEE80211_RATE_MCS; 3124 } else 3125 tap->wr_rate = plcp2rate(rate & IWN_RFLAG_RATE); 3126 } 3127 3128 /* 3129 * If it's a beacon and we're waiting, then do the 3130 * wakeup. This should unblock raw_xmit/start. 3131 */ 3132 if (sc->sc_beacon_wait) { 3133 uint8_t type, subtype; 3134 /* NB: Re-assign wh */ 3135 wh = mtod(m, struct ieee80211_frame_min *); 3136 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3137 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3138 /* 3139 * This assumes at this point we've received our own 3140 * beacon. 3141 */ 3142 DPRINTF(sc, IWN_DEBUG_TRACE, 3143 "%s: beacon_wait, type=%d, subtype=%d\n", 3144 __func__, type, subtype); 3145 if (type == IEEE80211_FC0_TYPE_MGT && 3146 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 3147 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, 3148 "%s: waking things up\n", __func__); 3149 /* queue taskqueue to transmit! */ 3150 taskqueue_enqueue(sc->sc_tq, &sc->sc_xmit_task); 3151 } 3152 } 3153 3154 IWN_UNLOCK(sc); 3155 3156 /* Send the frame to the 802.11 layer. */ 3157 if (ni != NULL) { 3158 if (ni->ni_flags & IEEE80211_NODE_HT) 3159 m->m_flags |= M_AMPDU; 3160 (void)ieee80211_input(ni, m, rssi - nf, nf); 3161 /* Node is no longer needed. */ 3162 ieee80211_free_node(ni); 3163 } else 3164 (void)ieee80211_input_all(ic, m, rssi - nf, nf); 3165 3166 IWN_LOCK(sc); 3167 3168 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3169 3170 } 3171 3172 /* Process an incoming Compressed BlockAck. */ 3173 static void 3174 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3175 { 3176 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs; 3177 struct iwn_ops *ops = &sc->ops; 3178 struct iwn_node *wn; 3179 struct ieee80211_node *ni; 3180 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1); 3181 struct iwn_tx_ring *txq; 3182 struct iwn_tx_data *txdata; 3183 struct ieee80211_tx_ampdu *tap; 3184 struct mbuf *m; 3185 uint64_t bitmap; 3186 uint16_t ssn; 3187 uint8_t tid; 3188 int i, lastidx, qid, *res, shift; 3189 int tx_ok = 0, tx_err = 0; 3190 3191 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s begin\n", __func__); 3192 3193 qid = le16toh(ba->qid); 3194 txq = &sc->txq[ba->qid]; 3195 tap = sc->qid2tap[ba->qid]; 3196 tid = tap->txa_tid; 3197 wn = (void *)tap->txa_ni; 3198 3199 res = NULL; 3200 ssn = 0; 3201 if (!IEEE80211_AMPDU_RUNNING(tap)) { 3202 res = tap->txa_private; 3203 ssn = tap->txa_start & 0xfff; 3204 } 3205 3206 for (lastidx = le16toh(ba->ssn) & 0xff; txq->read != lastidx;) { 3207 txdata = &txq->data[txq->read]; 3208 3209 /* Unmap and free mbuf. */ 3210 bus_dmamap_sync(txq->data_dmat, txdata->map, 3211 BUS_DMASYNC_POSTWRITE); 3212 bus_dmamap_unload(txq->data_dmat, txdata->map); 3213 m = txdata->m, txdata->m = NULL; 3214 ni = txdata->ni, txdata->ni = NULL; 3215 3216 KASSERT(ni != NULL, ("no node")); 3217 KASSERT(m != NULL, ("no mbuf")); 3218 3219 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m); 3220 ieee80211_tx_complete(ni, m, 1); 3221 3222 txq->queued--; 3223 txq->read = (txq->read + 1) % IWN_TX_RING_COUNT; 3224 } 3225 3226 if (txq->queued == 0 && res != NULL) { 3227 iwn_nic_lock(sc); 3228 ops->ampdu_tx_stop(sc, qid, tid, ssn); 3229 iwn_nic_unlock(sc); 3230 sc->qid2tap[qid] = NULL; 3231 free(res, M_DEVBUF); 3232 return; 3233 } 3234 3235 if (wn->agg[tid].bitmap == 0) 3236 return; 3237 3238 shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff); 3239 if (shift < 0) 3240 shift += 0x100; 3241 3242 if (wn->agg[tid].nframes > (64 - shift)) 3243 return; 3244 3245 /* 3246 * Walk the bitmap and calculate how many successful and failed 3247 * attempts are made. 3248 * 3249 * Yes, the rate control code doesn't know these are A-MPDU 3250 * subframes and that it's okay to fail some of these. 3251 */ 3252 ni = tap->txa_ni; 3253 bitmap = (le64toh(ba->bitmap) >> shift) & wn->agg[tid].bitmap; 3254 for (i = 0; bitmap; i++) { 3255 txs->flags = 0; /* XXX TODO */ 3256 if ((bitmap & 1) == 0) { 3257 tx_err ++; 3258 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 3259 } else { 3260 tx_ok ++; 3261 txs->status = IEEE80211_RATECTL_TX_SUCCESS; 3262 } 3263 ieee80211_ratectl_tx_complete(ni, txs); 3264 bitmap >>= 1; 3265 } 3266 3267 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, 3268 "->%s: end; %d ok; %d err\n",__func__, tx_ok, tx_err); 3269 3270 } 3271 3272 /* 3273 * Process a CALIBRATION_RESULT notification sent by the initialization 3274 * firmware on response to a CMD_CALIB_CONFIG command (5000 only). 3275 */ 3276 static void 3277 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3278 { 3279 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1); 3280 int len, idx = -1; 3281 3282 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3283 3284 /* Runtime firmware should not send such a notification. */ 3285 if (sc->sc_flags & IWN_FLAG_CALIB_DONE){ 3286 DPRINTF(sc, IWN_DEBUG_TRACE, 3287 "->%s received after calib done\n", __func__); 3288 return; 3289 } 3290 len = (le32toh(desc->len) & 0x3fff) - 4; 3291 3292 switch (calib->code) { 3293 case IWN5000_PHY_CALIB_DC: 3294 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_DC) 3295 idx = 0; 3296 break; 3297 case IWN5000_PHY_CALIB_LO: 3298 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_LO) 3299 idx = 1; 3300 break; 3301 case IWN5000_PHY_CALIB_TX_IQ: 3302 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ) 3303 idx = 2; 3304 break; 3305 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC: 3306 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ_PERIODIC) 3307 idx = 3; 3308 break; 3309 case IWN5000_PHY_CALIB_BASE_BAND: 3310 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_BASE_BAND) 3311 idx = 4; 3312 break; 3313 } 3314 if (idx == -1) /* Ignore other results. */ 3315 return; 3316 3317 /* Save calibration result. */ 3318 if (sc->calibcmd[idx].buf != NULL) 3319 free(sc->calibcmd[idx].buf, M_DEVBUF); 3320 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT); 3321 if (sc->calibcmd[idx].buf == NULL) { 3322 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3323 "not enough memory for calibration result %d\n", 3324 calib->code); 3325 return; 3326 } 3327 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3328 "saving calibration result idx=%d, code=%d len=%d\n", idx, calib->code, len); 3329 sc->calibcmd[idx].len = len; 3330 memcpy(sc->calibcmd[idx].buf, calib, len); 3331 } 3332 3333 static void 3334 iwn_stats_update(struct iwn_softc *sc, struct iwn_calib_state *calib, 3335 struct iwn_stats *stats, int len) 3336 { 3337 struct iwn_stats_bt *stats_bt; 3338 struct iwn_stats *lstats; 3339 3340 /* 3341 * First - check whether the length is the bluetooth or normal. 3342 * 3343 * If it's normal - just copy it and bump out. 3344 * Otherwise we have to convert things. 3345 */ 3346 3347 if (len == sizeof(struct iwn_stats) + 4) { 3348 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats)); 3349 sc->last_stat_valid = 1; 3350 return; 3351 } 3352 3353 /* 3354 * If it's not the bluetooth size - log, then just copy. 3355 */ 3356 if (len != sizeof(struct iwn_stats_bt) + 4) { 3357 DPRINTF(sc, IWN_DEBUG_STATS, 3358 "%s: size of rx statistics (%d) not an expected size!\n", 3359 __func__, 3360 len); 3361 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats)); 3362 sc->last_stat_valid = 1; 3363 return; 3364 } 3365 3366 /* 3367 * Ok. Time to copy. 3368 */ 3369 stats_bt = (struct iwn_stats_bt *) stats; 3370 lstats = &sc->last_stat; 3371 3372 /* flags */ 3373 lstats->flags = stats_bt->flags; 3374 /* rx_bt */ 3375 memcpy(&lstats->rx.ofdm, &stats_bt->rx_bt.ofdm, 3376 sizeof(struct iwn_rx_phy_stats)); 3377 memcpy(&lstats->rx.cck, &stats_bt->rx_bt.cck, 3378 sizeof(struct iwn_rx_phy_stats)); 3379 memcpy(&lstats->rx.general, &stats_bt->rx_bt.general_bt.common, 3380 sizeof(struct iwn_rx_general_stats)); 3381 memcpy(&lstats->rx.ht, &stats_bt->rx_bt.ht, 3382 sizeof(struct iwn_rx_ht_phy_stats)); 3383 /* tx */ 3384 memcpy(&lstats->tx, &stats_bt->tx, 3385 sizeof(struct iwn_tx_stats)); 3386 /* general */ 3387 memcpy(&lstats->general, &stats_bt->general, 3388 sizeof(struct iwn_general_stats)); 3389 3390 /* XXX TODO: Squirrel away the extra bluetooth stats somewhere */ 3391 sc->last_stat_valid = 1; 3392 } 3393 3394 /* 3395 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification. 3396 * The latter is sent by the firmware after each received beacon. 3397 */ 3398 static void 3399 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3400 { 3401 struct iwn_ops *ops = &sc->ops; 3402 struct ieee80211com *ic = &sc->sc_ic; 3403 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3404 struct iwn_calib_state *calib = &sc->calib; 3405 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 3406 struct iwn_stats *lstats; 3407 int temp; 3408 3409 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3410 3411 /* Ignore statistics received during a scan. */ 3412 if (vap->iv_state != IEEE80211_S_RUN || 3413 (ic->ic_flags & IEEE80211_F_SCAN)){ 3414 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s received during calib\n", 3415 __func__); 3416 return; 3417 } 3418 3419 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_STATS, 3420 "%s: received statistics, cmd %d, len %d\n", 3421 __func__, desc->type, le16toh(desc->len)); 3422 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */ 3423 3424 /* 3425 * Collect/track general statistics for reporting. 3426 * 3427 * This takes care of ensuring that the bluetooth sized message 3428 * will be correctly converted to the legacy sized message. 3429 */ 3430 iwn_stats_update(sc, calib, stats, le16toh(desc->len)); 3431 3432 /* 3433 * And now, let's take a reference of it to use! 3434 */ 3435 lstats = &sc->last_stat; 3436 3437 /* Test if temperature has changed. */ 3438 if (lstats->general.temp != sc->rawtemp) { 3439 /* Convert "raw" temperature to degC. */ 3440 sc->rawtemp = stats->general.temp; 3441 temp = ops->get_temperature(sc); 3442 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n", 3443 __func__, temp); 3444 3445 /* Update TX power if need be (4965AGN only). */ 3446 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 3447 iwn4965_power_calibration(sc, temp); 3448 } 3449 3450 if (desc->type != IWN_BEACON_STATISTICS) 3451 return; /* Reply to a statistics request. */ 3452 3453 sc->noise = iwn_get_noise(&lstats->rx.general); 3454 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise); 3455 3456 /* Test that RSSI and noise are present in stats report. */ 3457 if (le32toh(lstats->rx.general.flags) != 1) { 3458 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", 3459 "received statistics without RSSI"); 3460 return; 3461 } 3462 3463 if (calib->state == IWN_CALIB_STATE_ASSOC) 3464 iwn_collect_noise(sc, &lstats->rx.general); 3465 else if (calib->state == IWN_CALIB_STATE_RUN) { 3466 iwn_tune_sensitivity(sc, &lstats->rx); 3467 /* 3468 * XXX TODO: Only run the RX recovery if we're associated! 3469 */ 3470 iwn_check_rx_recovery(sc, lstats); 3471 iwn_save_stats_counters(sc, lstats); 3472 } 3473 3474 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3475 } 3476 3477 /* 3478 * Save the relevant statistic counters for the next calibration 3479 * pass. 3480 */ 3481 static void 3482 iwn_save_stats_counters(struct iwn_softc *sc, const struct iwn_stats *rs) 3483 { 3484 struct iwn_calib_state *calib = &sc->calib; 3485 3486 /* Save counters values for next call. */ 3487 calib->bad_plcp_cck = le32toh(rs->rx.cck.bad_plcp); 3488 calib->fa_cck = le32toh(rs->rx.cck.fa); 3489 calib->bad_plcp_ht = le32toh(rs->rx.ht.bad_plcp); 3490 calib->bad_plcp_ofdm = le32toh(rs->rx.ofdm.bad_plcp); 3491 calib->fa_ofdm = le32toh(rs->rx.ofdm.fa); 3492 3493 /* Last time we received these tick values */ 3494 sc->last_calib_ticks = ticks; 3495 } 3496 3497 /* 3498 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN 3499 * and 5000 adapters have different incompatible TX status formats. 3500 */ 3501 static void 3502 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 3503 struct iwn_rx_data *data) 3504 { 3505 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1); 3506 int qid = desc->qid & IWN_RX_DESC_QID_MSK; 3507 3508 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 3509 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n", 3510 __func__, desc->qid, desc->idx, 3511 stat->rtsfailcnt, 3512 stat->ackfailcnt, 3513 stat->btkillcnt, 3514 stat->rate, le16toh(stat->duration), 3515 le32toh(stat->status)); 3516 3517 if (qid >= sc->firstaggqueue) { 3518 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes, 3519 stat->rtsfailcnt, stat->ackfailcnt, &stat->status); 3520 } else { 3521 iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt, 3522 le32toh(stat->status) & 0xff); 3523 } 3524 } 3525 3526 static void 3527 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 3528 struct iwn_rx_data *data) 3529 { 3530 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1); 3531 int qid = desc->qid & IWN_RX_DESC_QID_MSK; 3532 3533 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 3534 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n", 3535 __func__, desc->qid, desc->idx, 3536 stat->rtsfailcnt, 3537 stat->ackfailcnt, 3538 stat->btkillcnt, 3539 stat->rate, le16toh(stat->duration), 3540 le32toh(stat->status)); 3541 3542 #ifdef notyet 3543 /* Reset TX scheduler slot. */ 3544 iwn5000_reset_sched(sc, qid, desc->idx); 3545 #endif 3546 3547 if (qid >= sc->firstaggqueue) { 3548 iwn_ampdu_tx_done(sc, qid, desc->idx, stat->nframes, 3549 stat->rtsfailcnt, stat->ackfailcnt, &stat->status); 3550 } else { 3551 iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt, 3552 le16toh(stat->status) & 0xff); 3553 } 3554 } 3555 3556 /* 3557 * Adapter-independent backend for TX_DONE firmware notifications. 3558 */ 3559 static void 3560 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int rtsfailcnt, 3561 int ackfailcnt, uint8_t status) 3562 { 3563 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs; 3564 struct iwn_tx_ring *ring = &sc->txq[desc->qid & IWN_RX_DESC_QID_MSK]; 3565 struct iwn_tx_data *data = &ring->data[desc->idx]; 3566 struct mbuf *m; 3567 struct ieee80211_node *ni; 3568 3569 KASSERT(data->ni != NULL, ("no node")); 3570 3571 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3572 3573 /* Unmap and free mbuf. */ 3574 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 3575 bus_dmamap_unload(ring->data_dmat, data->map); 3576 m = data->m, data->m = NULL; 3577 ni = data->ni, data->ni = NULL; 3578 3579 /* 3580 * Update rate control statistics for the node. 3581 */ 3582 txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY | 3583 IEEE80211_RATECTL_STATUS_LONG_RETRY; 3584 txs->short_retries = rtsfailcnt; 3585 txs->long_retries = ackfailcnt; 3586 if (!(status & IWN_TX_FAIL)) 3587 txs->status = IEEE80211_RATECTL_TX_SUCCESS; 3588 else { 3589 switch (status) { 3590 case IWN_TX_FAIL_SHORT_LIMIT: 3591 txs->status = IEEE80211_RATECTL_TX_FAIL_SHORT; 3592 break; 3593 case IWN_TX_FAIL_LONG_LIMIT: 3594 txs->status = IEEE80211_RATECTL_TX_FAIL_LONG; 3595 break; 3596 case IWN_TX_STATUS_FAIL_LIFE_EXPIRE: 3597 txs->status = IEEE80211_RATECTL_TX_FAIL_EXPIRED; 3598 break; 3599 default: 3600 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 3601 break; 3602 } 3603 } 3604 ieee80211_ratectl_tx_complete(ni, txs); 3605 3606 /* 3607 * Channels marked for "radar" require traffic to be received 3608 * to unlock before we can transmit. Until traffic is seen 3609 * any attempt to transmit is returned immediately with status 3610 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily 3611 * happen on first authenticate after scanning. To workaround 3612 * this we ignore a failure of this sort in AUTH state so the 3613 * 802.11 layer will fall back to using a timeout to wait for 3614 * the AUTH reply. This allows the firmware time to see 3615 * traffic so a subsequent retry of AUTH succeeds. It's 3616 * unclear why the firmware does not maintain state for 3617 * channels recently visited as this would allow immediate 3618 * use of the channel after a scan (where we see traffic). 3619 */ 3620 if (status == IWN_TX_FAIL_TX_LOCKED && 3621 ni->ni_vap->iv_state == IEEE80211_S_AUTH) 3622 ieee80211_tx_complete(ni, m, 0); 3623 else 3624 ieee80211_tx_complete(ni, m, 3625 (status & IWN_TX_FAIL) != 0); 3626 3627 sc->sc_tx_timer = 0; 3628 if (--ring->queued < IWN_TX_RING_LOMARK) 3629 sc->qfullmsk &= ~(1 << ring->qid); 3630 3631 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3632 } 3633 3634 /* 3635 * Process a "command done" firmware notification. This is where we wakeup 3636 * processes waiting for a synchronous command completion. 3637 */ 3638 static void 3639 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3640 { 3641 struct iwn_tx_ring *ring; 3642 struct iwn_tx_data *data; 3643 int cmd_queue_num; 3644 3645 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) 3646 cmd_queue_num = IWN_PAN_CMD_QUEUE; 3647 else 3648 cmd_queue_num = IWN_CMD_QUEUE_NUM; 3649 3650 if ((desc->qid & IWN_RX_DESC_QID_MSK) != cmd_queue_num) 3651 return; /* Not a command ack. */ 3652 3653 ring = &sc->txq[cmd_queue_num]; 3654 data = &ring->data[desc->idx]; 3655 3656 /* If the command was mapped in an mbuf, free it. */ 3657 if (data->m != NULL) { 3658 bus_dmamap_sync(ring->data_dmat, data->map, 3659 BUS_DMASYNC_POSTWRITE); 3660 bus_dmamap_unload(ring->data_dmat, data->map); 3661 m_freem(data->m); 3662 data->m = NULL; 3663 } 3664 wakeup(&ring->desc[desc->idx]); 3665 } 3666 3667 static void 3668 iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int idx, int nframes, 3669 int rtsfailcnt, int ackfailcnt, void *stat) 3670 { 3671 struct iwn_ops *ops = &sc->ops; 3672 struct iwn_tx_ring *ring = &sc->txq[qid]; 3673 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs; 3674 struct iwn_tx_data *data; 3675 struct mbuf *m; 3676 struct iwn_node *wn; 3677 struct ieee80211_node *ni; 3678 struct ieee80211_tx_ampdu *tap; 3679 uint64_t bitmap; 3680 uint32_t *status = stat; 3681 uint16_t *aggstatus = stat; 3682 uint16_t ssn; 3683 uint8_t tid; 3684 int bit, i, lastidx, *res, seqno, shift, start; 3685 3686 /* XXX TODO: status is le16 field! Grr */ 3687 3688 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3689 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: nframes=%d, status=0x%08x\n", 3690 __func__, 3691 nframes, 3692 *status); 3693 3694 tap = sc->qid2tap[qid]; 3695 tid = tap->txa_tid; 3696 wn = (void *)tap->txa_ni; 3697 ni = tap->txa_ni; 3698 3699 /* 3700 * XXX TODO: ACK and RTS failures would be nice here! 3701 */ 3702 3703 /* 3704 * A-MPDU single frame status - if we failed to transmit it 3705 * in A-MPDU, then it may be a permanent failure. 3706 * 3707 * XXX TODO: check what the Linux iwlwifi driver does here; 3708 * there's some permanent and temporary failures that may be 3709 * handled differently. 3710 */ 3711 if (nframes == 1) { 3712 txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY | 3713 IEEE80211_RATECTL_STATUS_LONG_RETRY; 3714 txs->short_retries = rtsfailcnt; 3715 txs->long_retries = ackfailcnt; 3716 if ((*status & 0xff) != 1 && (*status & 0xff) != 2) { 3717 #ifdef NOT_YET 3718 printf("ieee80211_send_bar()\n"); 3719 #endif 3720 /* 3721 * If we completely fail a transmit, make sure a 3722 * notification is pushed up to the rate control 3723 * layer. 3724 */ 3725 /* XXX */ 3726 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 3727 } else { 3728 /* 3729 * If nframes=1, then we won't be getting a BA for 3730 * this frame. Ensure that we correctly update the 3731 * rate control code with how many retries were 3732 * needed to send it. 3733 */ 3734 txs->status = IEEE80211_RATECTL_TX_SUCCESS; 3735 } 3736 ieee80211_ratectl_tx_complete(ni, txs); 3737 } 3738 3739 bitmap = 0; 3740 start = idx; 3741 for (i = 0; i < nframes; i++) { 3742 if (le16toh(aggstatus[i * 2]) & 0xc) 3743 continue; 3744 3745 idx = le16toh(aggstatus[2*i + 1]) & 0xff; 3746 bit = idx - start; 3747 shift = 0; 3748 if (bit >= 64) { 3749 shift = 0x100 - idx + start; 3750 bit = 0; 3751 start = idx; 3752 } else if (bit <= -64) 3753 bit = 0x100 - start + idx; 3754 else if (bit < 0) { 3755 shift = start - idx; 3756 start = idx; 3757 bit = 0; 3758 } 3759 bitmap = bitmap << shift; 3760 bitmap |= 1ULL << bit; 3761 } 3762 tap = sc->qid2tap[qid]; 3763 tid = tap->txa_tid; 3764 wn = (void *)tap->txa_ni; 3765 wn->agg[tid].bitmap = bitmap; 3766 wn->agg[tid].startidx = start; 3767 wn->agg[tid].nframes = nframes; 3768 3769 res = NULL; 3770 ssn = 0; 3771 if (!IEEE80211_AMPDU_RUNNING(tap)) { 3772 res = tap->txa_private; 3773 ssn = tap->txa_start & 0xfff; 3774 } 3775 3776 /* This is going nframes DWORDS into the descriptor? */ 3777 seqno = le32toh(*(status + nframes)) & 0xfff; 3778 for (lastidx = (seqno & 0xff); ring->read != lastidx;) { 3779 data = &ring->data[ring->read]; 3780 3781 /* Unmap and free mbuf. */ 3782 bus_dmamap_sync(ring->data_dmat, data->map, 3783 BUS_DMASYNC_POSTWRITE); 3784 bus_dmamap_unload(ring->data_dmat, data->map); 3785 m = data->m, data->m = NULL; 3786 ni = data->ni, data->ni = NULL; 3787 3788 KASSERT(ni != NULL, ("no node")); 3789 KASSERT(m != NULL, ("no mbuf")); 3790 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: freeing m=%p\n", __func__, m); 3791 ieee80211_tx_complete(ni, m, 1); 3792 3793 ring->queued--; 3794 ring->read = (ring->read + 1) % IWN_TX_RING_COUNT; 3795 } 3796 3797 if (ring->queued == 0 && res != NULL) { 3798 iwn_nic_lock(sc); 3799 ops->ampdu_tx_stop(sc, qid, tid, ssn); 3800 iwn_nic_unlock(sc); 3801 sc->qid2tap[qid] = NULL; 3802 free(res, M_DEVBUF); 3803 return; 3804 } 3805 3806 sc->sc_tx_timer = 0; 3807 if (ring->queued < IWN_TX_RING_LOMARK) 3808 sc->qfullmsk &= ~(1 << ring->qid); 3809 3810 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3811 } 3812 3813 /* 3814 * Process an INT_FH_RX or INT_SW_RX interrupt. 3815 */ 3816 static void 3817 iwn_notif_intr(struct iwn_softc *sc) 3818 { 3819 struct iwn_ops *ops = &sc->ops; 3820 struct ieee80211com *ic = &sc->sc_ic; 3821 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3822 uint16_t hw; 3823 3824 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map, 3825 BUS_DMASYNC_POSTREAD); 3826 3827 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff; 3828 while (sc->rxq.cur != hw) { 3829 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 3830 struct iwn_rx_desc *desc; 3831 3832 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 3833 BUS_DMASYNC_POSTREAD); 3834 desc = mtod(data->m, struct iwn_rx_desc *); 3835 3836 DPRINTF(sc, IWN_DEBUG_RECV, 3837 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n", 3838 __func__, sc->rxq.cur, desc->qid & IWN_RX_DESC_QID_MSK, 3839 desc->idx, desc->flags, desc->type, 3840 iwn_intr_str(desc->type), le16toh(desc->len)); 3841 3842 if (!(desc->qid & IWN_UNSOLICITED_RX_NOTIF)) /* Reply to a command. */ 3843 iwn_cmd_done(sc, desc); 3844 3845 switch (desc->type) { 3846 case IWN_RX_PHY: 3847 iwn_rx_phy(sc, desc); 3848 break; 3849 3850 case IWN_RX_DONE: /* 4965AGN only. */ 3851 case IWN_MPDU_RX_DONE: 3852 /* An 802.11 frame has been received. */ 3853 iwn_rx_done(sc, desc, data); 3854 break; 3855 3856 case IWN_RX_COMPRESSED_BA: 3857 /* A Compressed BlockAck has been received. */ 3858 iwn_rx_compressed_ba(sc, desc); 3859 break; 3860 3861 case IWN_TX_DONE: 3862 /* An 802.11 frame has been transmitted. */ 3863 ops->tx_done(sc, desc, data); 3864 break; 3865 3866 case IWN_RX_STATISTICS: 3867 case IWN_BEACON_STATISTICS: 3868 iwn_rx_statistics(sc, desc); 3869 break; 3870 3871 case IWN_BEACON_MISSED: 3872 { 3873 struct iwn_beacon_missed *miss = 3874 (struct iwn_beacon_missed *)(desc + 1); 3875 int misses; 3876 3877 misses = le32toh(miss->consecutive); 3878 3879 DPRINTF(sc, IWN_DEBUG_STATE, 3880 "%s: beacons missed %d/%d\n", __func__, 3881 misses, le32toh(miss->total)); 3882 /* 3883 * If more than 5 consecutive beacons are missed, 3884 * reinitialize the sensitivity state machine. 3885 */ 3886 if (vap->iv_state == IEEE80211_S_RUN && 3887 (ic->ic_flags & IEEE80211_F_SCAN) == 0) { 3888 if (misses > 5) 3889 (void)iwn_init_sensitivity(sc); 3890 if (misses >= vap->iv_bmissthreshold) { 3891 IWN_UNLOCK(sc); 3892 ieee80211_beacon_miss(ic); 3893 IWN_LOCK(sc); 3894 } 3895 } 3896 break; 3897 } 3898 case IWN_UC_READY: 3899 { 3900 struct iwn_ucode_info *uc = 3901 (struct iwn_ucode_info *)(desc + 1); 3902 3903 /* The microcontroller is ready. */ 3904 DPRINTF(sc, IWN_DEBUG_RESET, 3905 "microcode alive notification version=%d.%d " 3906 "subtype=%x alive=%x\n", uc->major, uc->minor, 3907 uc->subtype, le32toh(uc->valid)); 3908 3909 if (le32toh(uc->valid) != 1) { 3910 device_printf(sc->sc_dev, 3911 "microcontroller initialization failed"); 3912 break; 3913 } 3914 if (uc->subtype == IWN_UCODE_INIT) { 3915 /* Save microcontroller report. */ 3916 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 3917 } 3918 /* Save the address of the error log in SRAM. */ 3919 sc->errptr = le32toh(uc->errptr); 3920 break; 3921 } 3922 #ifdef IWN_DEBUG 3923 case IWN_STATE_CHANGED: 3924 { 3925 /* 3926 * State change allows hardware switch change to be 3927 * noted. However, we handle this in iwn_intr as we 3928 * get both the enable/disble intr. 3929 */ 3930 uint32_t *status = (uint32_t *)(desc + 1); 3931 DPRINTF(sc, IWN_DEBUG_INTR | IWN_DEBUG_STATE, 3932 "state changed to %x\n", 3933 le32toh(*status)); 3934 break; 3935 } 3936 case IWN_START_SCAN: 3937 { 3938 struct iwn_start_scan *scan = 3939 (struct iwn_start_scan *)(desc + 1); 3940 DPRINTF(sc, IWN_DEBUG_ANY, 3941 "%s: scanning channel %d status %x\n", 3942 __func__, scan->chan, le32toh(scan->status)); 3943 break; 3944 } 3945 #endif 3946 case IWN_STOP_SCAN: 3947 { 3948 #ifdef IWN_DEBUG 3949 struct iwn_stop_scan *scan = 3950 (struct iwn_stop_scan *)(desc + 1); 3951 DPRINTF(sc, IWN_DEBUG_STATE | IWN_DEBUG_SCAN, 3952 "scan finished nchan=%d status=%d chan=%d\n", 3953 scan->nchan, scan->status, scan->chan); 3954 #endif 3955 sc->sc_is_scanning = 0; 3956 callout_stop(&sc->scan_timeout); 3957 IWN_UNLOCK(sc); 3958 ieee80211_scan_next(vap); 3959 IWN_LOCK(sc); 3960 break; 3961 } 3962 case IWN5000_CALIBRATION_RESULT: 3963 iwn5000_rx_calib_results(sc, desc); 3964 break; 3965 3966 case IWN5000_CALIBRATION_DONE: 3967 sc->sc_flags |= IWN_FLAG_CALIB_DONE; 3968 wakeup(sc); 3969 break; 3970 } 3971 3972 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 3973 } 3974 3975 /* Tell the firmware what we have processed. */ 3976 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 3977 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7); 3978 } 3979 3980 /* 3981 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 3982 * from power-down sleep mode. 3983 */ 3984 static void 3985 iwn_wakeup_intr(struct iwn_softc *sc) 3986 { 3987 int qid; 3988 3989 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n", 3990 __func__); 3991 3992 /* Wakeup RX and TX rings. */ 3993 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7); 3994 for (qid = 0; qid < sc->ntxqs; qid++) { 3995 struct iwn_tx_ring *ring = &sc->txq[qid]; 3996 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur); 3997 } 3998 } 3999 4000 static void 4001 iwn_rftoggle_task(void *arg, int npending) 4002 { 4003 struct iwn_softc *sc = arg; 4004 struct ieee80211com *ic = &sc->sc_ic; 4005 uint32_t tmp; 4006 4007 IWN_LOCK(sc); 4008 tmp = IWN_READ(sc, IWN_GP_CNTRL); 4009 IWN_UNLOCK(sc); 4010 4011 device_printf(sc->sc_dev, "RF switch: radio %s\n", 4012 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled"); 4013 if (!(tmp & IWN_GP_CNTRL_RFKILL)) { 4014 ieee80211_suspend_all(ic); 4015 4016 /* Enable interrupts to get RF toggle notification. */ 4017 IWN_LOCK(sc); 4018 IWN_WRITE(sc, IWN_INT, 0xffffffff); 4019 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 4020 IWN_UNLOCK(sc); 4021 } else 4022 ieee80211_resume_all(ic); 4023 } 4024 4025 /* 4026 * Dump the error log of the firmware when a firmware panic occurs. Although 4027 * we can't debug the firmware because it is neither open source nor free, it 4028 * can help us to identify certain classes of problems. 4029 */ 4030 static void 4031 iwn_fatal_intr(struct iwn_softc *sc) 4032 { 4033 struct iwn_fw_dump dump; 4034 int i; 4035 4036 IWN_LOCK_ASSERT(sc); 4037 4038 /* Force a complete recalibration on next init. */ 4039 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE; 4040 4041 /* Check that the error log address is valid. */ 4042 if (sc->errptr < IWN_FW_DATA_BASE || 4043 sc->errptr + sizeof (dump) > 4044 IWN_FW_DATA_BASE + sc->fw_data_maxsz) { 4045 printf("%s: bad firmware error log address 0x%08x\n", __func__, 4046 sc->errptr); 4047 return; 4048 } 4049 if (iwn_nic_lock(sc) != 0) { 4050 printf("%s: could not read firmware error log\n", __func__); 4051 return; 4052 } 4053 /* Read firmware error log from SRAM. */ 4054 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump, 4055 sizeof (dump) / sizeof (uint32_t)); 4056 iwn_nic_unlock(sc); 4057 4058 if (dump.valid == 0) { 4059 printf("%s: firmware error log is empty\n", __func__); 4060 return; 4061 } 4062 printf("firmware error log:\n"); 4063 printf(" error type = \"%s\" (0x%08X)\n", 4064 (dump.id < nitems(iwn_fw_errmsg)) ? 4065 iwn_fw_errmsg[dump.id] : "UNKNOWN", 4066 dump.id); 4067 printf(" program counter = 0x%08X\n", dump.pc); 4068 printf(" source line = 0x%08X\n", dump.src_line); 4069 printf(" error data = 0x%08X%08X\n", 4070 dump.error_data[0], dump.error_data[1]); 4071 printf(" branch link = 0x%08X%08X\n", 4072 dump.branch_link[0], dump.branch_link[1]); 4073 printf(" interrupt link = 0x%08X%08X\n", 4074 dump.interrupt_link[0], dump.interrupt_link[1]); 4075 printf(" time = %u\n", dump.time[0]); 4076 4077 /* Dump driver status (TX and RX rings) while we're here. */ 4078 printf("driver status:\n"); 4079 for (i = 0; i < sc->ntxqs; i++) { 4080 struct iwn_tx_ring *ring = &sc->txq[i]; 4081 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 4082 i, ring->qid, ring->cur, ring->queued); 4083 } 4084 printf(" rx ring: cur=%d\n", sc->rxq.cur); 4085 } 4086 4087 static void 4088 iwn_intr(void *arg) 4089 { 4090 struct iwn_softc *sc = arg; 4091 uint32_t r1, r2, tmp; 4092 4093 IWN_LOCK(sc); 4094 4095 /* Disable interrupts. */ 4096 IWN_WRITE(sc, IWN_INT_MASK, 0); 4097 4098 /* Read interrupts from ICT (fast) or from registers (slow). */ 4099 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 4100 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, 4101 BUS_DMASYNC_POSTREAD); 4102 tmp = 0; 4103 while (sc->ict[sc->ict_cur] != 0) { 4104 tmp |= sc->ict[sc->ict_cur]; 4105 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */ 4106 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT; 4107 } 4108 tmp = le32toh(tmp); 4109 if (tmp == 0xffffffff) /* Shouldn't happen. */ 4110 tmp = 0; 4111 else if (tmp & 0xc0000) /* Workaround a HW bug. */ 4112 tmp |= 0x8000; 4113 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff); 4114 r2 = 0; /* Unused. */ 4115 } else { 4116 r1 = IWN_READ(sc, IWN_INT); 4117 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) { 4118 IWN_UNLOCK(sc); 4119 return; /* Hardware gone! */ 4120 } 4121 r2 = IWN_READ(sc, IWN_FH_INT); 4122 } 4123 4124 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=0x%08x reg2=0x%08x\n" 4125 , r1, r2); 4126 4127 if (r1 == 0 && r2 == 0) 4128 goto done; /* Interrupt not for us. */ 4129 4130 /* Acknowledge interrupts. */ 4131 IWN_WRITE(sc, IWN_INT, r1); 4132 if (!(sc->sc_flags & IWN_FLAG_USE_ICT)) 4133 IWN_WRITE(sc, IWN_FH_INT, r2); 4134 4135 if (r1 & IWN_INT_RF_TOGGLED) { 4136 taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task); 4137 goto done; 4138 } 4139 if (r1 & IWN_INT_CT_REACHED) { 4140 device_printf(sc->sc_dev, "%s: critical temperature reached!\n", 4141 __func__); 4142 } 4143 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) { 4144 device_printf(sc->sc_dev, "%s: fatal firmware error\n", 4145 __func__); 4146 #ifdef IWN_DEBUG 4147 iwn_debug_register(sc); 4148 #endif 4149 /* Dump firmware error log and stop. */ 4150 iwn_fatal_intr(sc); 4151 4152 taskqueue_enqueue(sc->sc_tq, &sc->sc_panic_task); 4153 goto done; 4154 } 4155 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) || 4156 (r2 & IWN_FH_INT_RX)) { 4157 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 4158 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) 4159 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX); 4160 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 4161 IWN_INT_PERIODIC_DIS); 4162 iwn_notif_intr(sc); 4163 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) { 4164 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 4165 IWN_INT_PERIODIC_ENA); 4166 } 4167 } else 4168 iwn_notif_intr(sc); 4169 } 4170 4171 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) { 4172 if (sc->sc_flags & IWN_FLAG_USE_ICT) 4173 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX); 4174 wakeup(sc); /* FH DMA transfer completed. */ 4175 } 4176 4177 if (r1 & IWN_INT_ALIVE) 4178 wakeup(sc); /* Firmware is alive. */ 4179 4180 if (r1 & IWN_INT_WAKEUP) 4181 iwn_wakeup_intr(sc); 4182 4183 done: 4184 /* Re-enable interrupts. */ 4185 if (sc->sc_flags & IWN_FLAG_RUNNING) 4186 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 4187 4188 IWN_UNLOCK(sc); 4189 } 4190 4191 /* 4192 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and 4193 * 5000 adapters use a slightly different format). 4194 */ 4195 static void 4196 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 4197 uint16_t len) 4198 { 4199 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx]; 4200 4201 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4202 4203 *w = htole16(len + 8); 4204 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4205 BUS_DMASYNC_PREWRITE); 4206 if (idx < IWN_SCHED_WINSZ) { 4207 *(w + IWN_TX_RING_COUNT) = *w; 4208 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4209 BUS_DMASYNC_PREWRITE); 4210 } 4211 } 4212 4213 static void 4214 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 4215 uint16_t len) 4216 { 4217 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 4218 4219 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4220 4221 *w = htole16(id << 12 | (len + 8)); 4222 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4223 BUS_DMASYNC_PREWRITE); 4224 if (idx < IWN_SCHED_WINSZ) { 4225 *(w + IWN_TX_RING_COUNT) = *w; 4226 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4227 BUS_DMASYNC_PREWRITE); 4228 } 4229 } 4230 4231 #ifdef notyet 4232 static void 4233 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx) 4234 { 4235 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 4236 4237 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4238 4239 *w = (*w & htole16(0xf000)) | htole16(1); 4240 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4241 BUS_DMASYNC_PREWRITE); 4242 if (idx < IWN_SCHED_WINSZ) { 4243 *(w + IWN_TX_RING_COUNT) = *w; 4244 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4245 BUS_DMASYNC_PREWRITE); 4246 } 4247 } 4248 #endif 4249 4250 /* 4251 * Check whether OFDM 11g protection will be enabled for the given rate. 4252 * 4253 * The original driver code only enabled protection for OFDM rates. 4254 * It didn't check to see whether it was operating in 11a or 11bg mode. 4255 */ 4256 static int 4257 iwn_check_rate_needs_protection(struct iwn_softc *sc, 4258 struct ieee80211vap *vap, uint8_t rate) 4259 { 4260 struct ieee80211com *ic = vap->iv_ic; 4261 4262 /* 4263 * Not in 2GHz mode? Then there's no need to enable OFDM 4264 * 11bg protection. 4265 */ 4266 if (! IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 4267 return (0); 4268 } 4269 4270 /* 4271 * 11bg protection not enabled? Then don't use it. 4272 */ 4273 if ((ic->ic_flags & IEEE80211_F_USEPROT) == 0) 4274 return (0); 4275 4276 /* 4277 * If it's an 11n rate - no protection. 4278 * We'll do it via a specific 11n check. 4279 */ 4280 if (rate & IEEE80211_RATE_MCS) { 4281 return (0); 4282 } 4283 4284 /* 4285 * Do a rate table lookup. If the PHY is CCK, 4286 * don't do protection. 4287 */ 4288 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_CCK) 4289 return (0); 4290 4291 /* 4292 * Yup, enable protection. 4293 */ 4294 return (1); 4295 } 4296 4297 /* 4298 * return a value between 0 and IWN_MAX_TX_RETRIES-1 as an index into 4299 * the link quality table that reflects this particular entry. 4300 */ 4301 static int 4302 iwn_tx_rate_to_linkq_offset(struct iwn_softc *sc, struct ieee80211_node *ni, 4303 uint8_t rate) 4304 { 4305 struct ieee80211_rateset *rs; 4306 int is_11n; 4307 int nr; 4308 int i; 4309 uint8_t cmp_rate; 4310 4311 /* 4312 * Figure out if we're using 11n or not here. 4313 */ 4314 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0) 4315 is_11n = 1; 4316 else 4317 is_11n = 0; 4318 4319 /* 4320 * Use the correct rate table. 4321 */ 4322 if (is_11n) { 4323 rs = (struct ieee80211_rateset *) &ni->ni_htrates; 4324 nr = ni->ni_htrates.rs_nrates; 4325 } else { 4326 rs = &ni->ni_rates; 4327 nr = rs->rs_nrates; 4328 } 4329 4330 /* 4331 * Find the relevant link quality entry in the table. 4332 */ 4333 for (i = 0; i < nr && i < IWN_MAX_TX_RETRIES - 1 ; i++) { 4334 /* 4335 * The link quality table index starts at 0 == highest 4336 * rate, so we walk the rate table backwards. 4337 */ 4338 cmp_rate = rs->rs_rates[(nr - 1) - i]; 4339 if (rate & IEEE80211_RATE_MCS) 4340 cmp_rate |= IEEE80211_RATE_MCS; 4341 4342 #if 0 4343 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: idx %d: nr=%d, rate=0x%02x, rateentry=0x%02x\n", 4344 __func__, 4345 i, 4346 nr, 4347 rate, 4348 cmp_rate); 4349 #endif 4350 4351 if (cmp_rate == rate) 4352 return (i); 4353 } 4354 4355 /* Failed? Start at the end */ 4356 return (IWN_MAX_TX_RETRIES - 1); 4357 } 4358 4359 static int 4360 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 4361 { 4362 const struct ieee80211_txparam *tp = ni->ni_txparms; 4363 struct ieee80211vap *vap = ni->ni_vap; 4364 struct ieee80211com *ic = ni->ni_ic; 4365 struct iwn_node *wn = (void *)ni; 4366 struct iwn_tx_ring *ring; 4367 struct iwn_tx_cmd *cmd; 4368 struct iwn_cmd_data *tx; 4369 struct ieee80211_frame *wh; 4370 struct ieee80211_key *k = NULL; 4371 uint32_t flags; 4372 uint16_t seqno, qos; 4373 uint8_t tid, type; 4374 int ac, totlen, rate; 4375 4376 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 4377 4378 IWN_LOCK_ASSERT(sc); 4379 4380 wh = mtod(m, struct ieee80211_frame *); 4381 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 4382 4383 /* Select EDCA Access Category and TX ring for this frame. */ 4384 if (IEEE80211_QOS_HAS_SEQ(wh)) { 4385 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 4386 tid = qos & IEEE80211_QOS_TID; 4387 } else { 4388 qos = 0; 4389 tid = 0; 4390 } 4391 4392 /* Choose a TX rate index. */ 4393 if (type == IEEE80211_FC0_TYPE_MGT || 4394 type == IEEE80211_FC0_TYPE_CTL || 4395 (m->m_flags & M_EAPOL) != 0) 4396 rate = tp->mgmtrate; 4397 else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 4398 rate = tp->mcastrate; 4399 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 4400 rate = tp->ucastrate; 4401 else { 4402 /* XXX pass pktlen */ 4403 (void) ieee80211_ratectl_rate(ni, NULL, 0); 4404 rate = ni->ni_txrate; 4405 } 4406 4407 /* 4408 * XXX TODO: Group addressed frames aren't aggregated and must 4409 * go to the normal non-aggregation queue, and have a NONQOS TID 4410 * assigned from net80211. 4411 */ 4412 4413 ac = M_WME_GETAC(m); 4414 seqno = ni->ni_txseqs[tid]; 4415 if (m->m_flags & M_AMPDU_MPDU) { 4416 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac]; 4417 4418 if (!IEEE80211_AMPDU_RUNNING(tap)) { 4419 return (EINVAL); 4420 } 4421 4422 /* 4423 * Queue this frame to the hardware ring that we've 4424 * negotiated AMPDU TX on. 4425 * 4426 * Note that the sequence number must match the TX slot 4427 * being used! 4428 */ 4429 ac = *(int *)tap->txa_private; 4430 *(uint16_t *)wh->i_seq = 4431 htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT); 4432 ni->ni_txseqs[tid]++; 4433 } 4434 4435 /* Encrypt the frame if need be. */ 4436 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 4437 /* Retrieve key for TX. */ 4438 k = ieee80211_crypto_encap(ni, m); 4439 if (k == NULL) { 4440 return ENOBUFS; 4441 } 4442 /* 802.11 header may have moved. */ 4443 wh = mtod(m, struct ieee80211_frame *); 4444 } 4445 totlen = m->m_pkthdr.len; 4446 4447 if (ieee80211_radiotap_active_vap(vap)) { 4448 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 4449 4450 tap->wt_flags = 0; 4451 tap->wt_rate = rate; 4452 if (k != NULL) 4453 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 4454 4455 ieee80211_radiotap_tx(vap, m); 4456 } 4457 4458 flags = 0; 4459 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 4460 /* Unicast frame, check if an ACK is expected. */ 4461 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 4462 IEEE80211_QOS_ACKPOLICY_NOACK) 4463 flags |= IWN_TX_NEED_ACK; 4464 } 4465 if ((wh->i_fc[0] & 4466 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 4467 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR)) 4468 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */ 4469 4470 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 4471 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */ 4472 4473 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 4474 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 4475 /* NB: Group frames are sent using CCK in 802.11b/g. */ 4476 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 4477 flags |= IWN_TX_NEED_RTS; 4478 } else if (iwn_check_rate_needs_protection(sc, vap, rate)) { 4479 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 4480 flags |= IWN_TX_NEED_CTS; 4481 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 4482 flags |= IWN_TX_NEED_RTS; 4483 } else if ((rate & IEEE80211_RATE_MCS) && 4484 (ic->ic_htprotmode == IEEE80211_PROT_RTSCTS)) { 4485 flags |= IWN_TX_NEED_RTS; 4486 } 4487 4488 /* XXX HT protection? */ 4489 4490 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) { 4491 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4492 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4493 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS); 4494 flags |= IWN_TX_NEED_PROTECTION; 4495 } else 4496 flags |= IWN_TX_FULL_TXOP; 4497 } 4498 } 4499 4500 ring = &sc->txq[ac]; 4501 if ((m->m_flags & M_AMPDU_MPDU) != 0 && 4502 (seqno % 256) != ring->cur) { 4503 device_printf(sc->sc_dev, 4504 "%s: m=%p: seqno (%d) (%d) != ring index (%d) !\n", 4505 __func__, 4506 m, 4507 seqno, 4508 seqno % 256, 4509 ring->cur); 4510 } 4511 4512 /* Prepare TX firmware command. */ 4513 cmd = &ring->cmd[ring->cur]; 4514 tx = (struct iwn_cmd_data *)cmd->data; 4515 4516 /* NB: No need to clear tx, all fields are reinitialized here. */ 4517 tx->scratch = 0; /* clear "scratch" area */ 4518 4519 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 4520 type != IEEE80211_FC0_TYPE_DATA) 4521 tx->id = sc->broadcast_id; 4522 else 4523 tx->id = wn->id; 4524 4525 if (type == IEEE80211_FC0_TYPE_MGT) { 4526 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 4527 4528 /* Tell HW to set timestamp in probe responses. */ 4529 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 4530 flags |= IWN_TX_INSERT_TSTAMP; 4531 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 4532 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 4533 tx->timeout = htole16(3); 4534 else 4535 tx->timeout = htole16(2); 4536 } else 4537 tx->timeout = htole16(0); 4538 4539 if (tx->id == sc->broadcast_id) { 4540 /* Group or management frame. */ 4541 tx->linkq = 0; 4542 } else { 4543 tx->linkq = iwn_tx_rate_to_linkq_offset(sc, ni, rate); 4544 flags |= IWN_TX_LINKQ; /* enable MRR */ 4545 } 4546 4547 tx->tid = tid; 4548 tx->rts_ntries = 60; 4549 tx->data_ntries = 15; 4550 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4551 tx->rate = iwn_rate_to_plcp(sc, ni, rate); 4552 tx->security = 0; 4553 tx->flags = htole32(flags); 4554 4555 return (iwn_tx_cmd(sc, m, ni, ring)); 4556 } 4557 4558 static int 4559 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m, 4560 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 4561 { 4562 struct ieee80211vap *vap = ni->ni_vap; 4563 struct iwn_tx_cmd *cmd; 4564 struct iwn_cmd_data *tx; 4565 struct ieee80211_frame *wh; 4566 struct iwn_tx_ring *ring; 4567 uint32_t flags; 4568 int ac, rate; 4569 uint8_t type; 4570 4571 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 4572 4573 IWN_LOCK_ASSERT(sc); 4574 4575 wh = mtod(m, struct ieee80211_frame *); 4576 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 4577 4578 ac = params->ibp_pri & 3; 4579 4580 /* Choose a TX rate. */ 4581 rate = params->ibp_rate0; 4582 4583 flags = 0; 4584 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 4585 flags |= IWN_TX_NEED_ACK; 4586 if (params->ibp_flags & IEEE80211_BPF_RTS) { 4587 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4588 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4589 flags &= ~IWN_TX_NEED_RTS; 4590 flags |= IWN_TX_NEED_PROTECTION; 4591 } else 4592 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 4593 } 4594 if (params->ibp_flags & IEEE80211_BPF_CTS) { 4595 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4596 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4597 flags &= ~IWN_TX_NEED_CTS; 4598 flags |= IWN_TX_NEED_PROTECTION; 4599 } else 4600 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 4601 } 4602 4603 if (ieee80211_radiotap_active_vap(vap)) { 4604 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 4605 4606 tap->wt_flags = 0; 4607 tap->wt_rate = rate; 4608 4609 ieee80211_radiotap_tx(vap, m); 4610 } 4611 4612 ring = &sc->txq[ac]; 4613 cmd = &ring->cmd[ring->cur]; 4614 4615 tx = (struct iwn_cmd_data *)cmd->data; 4616 /* NB: No need to clear tx, all fields are reinitialized here. */ 4617 tx->scratch = 0; /* clear "scratch" area */ 4618 4619 if (type == IEEE80211_FC0_TYPE_MGT) { 4620 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 4621 4622 /* Tell HW to set timestamp in probe responses. */ 4623 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 4624 flags |= IWN_TX_INSERT_TSTAMP; 4625 4626 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 4627 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 4628 tx->timeout = htole16(3); 4629 else 4630 tx->timeout = htole16(2); 4631 } else 4632 tx->timeout = htole16(0); 4633 4634 tx->tid = 0; 4635 tx->id = sc->broadcast_id; 4636 tx->rts_ntries = params->ibp_try1; 4637 tx->data_ntries = params->ibp_try0; 4638 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4639 tx->rate = iwn_rate_to_plcp(sc, ni, rate); 4640 tx->security = 0; 4641 tx->flags = htole32(flags); 4642 4643 /* Group or management frame. */ 4644 tx->linkq = 0; 4645 4646 return (iwn_tx_cmd(sc, m, ni, ring)); 4647 } 4648 4649 static int 4650 iwn_tx_cmd(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, 4651 struct iwn_tx_ring *ring) 4652 { 4653 struct iwn_ops *ops = &sc->ops; 4654 struct iwn_tx_cmd *cmd; 4655 struct iwn_cmd_data *tx; 4656 struct ieee80211_frame *wh; 4657 struct iwn_tx_desc *desc; 4658 struct iwn_tx_data *data; 4659 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 4660 struct mbuf *m1; 4661 u_int hdrlen; 4662 int totlen, error, pad, nsegs = 0, i; 4663 4664 wh = mtod(m, struct ieee80211_frame *); 4665 hdrlen = ieee80211_anyhdrsize(wh); 4666 totlen = m->m_pkthdr.len; 4667 4668 desc = &ring->desc[ring->cur]; 4669 data = &ring->data[ring->cur]; 4670 4671 /* Prepare TX firmware command. */ 4672 cmd = &ring->cmd[ring->cur]; 4673 cmd->code = IWN_CMD_TX_DATA; 4674 cmd->flags = 0; 4675 cmd->qid = ring->qid; 4676 cmd->idx = ring->cur; 4677 4678 tx = (struct iwn_cmd_data *)cmd->data; 4679 tx->len = htole16(totlen); 4680 4681 /* Set physical address of "scratch area". */ 4682 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 4683 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 4684 if (hdrlen & 3) { 4685 /* First segment length must be a multiple of 4. */ 4686 tx->flags |= htole32(IWN_TX_NEED_PADDING); 4687 pad = 4 - (hdrlen & 3); 4688 } else 4689 pad = 0; 4690 4691 /* Copy 802.11 header in TX command. */ 4692 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 4693 4694 /* Trim 802.11 header. */ 4695 m_adj(m, hdrlen); 4696 4697 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 4698 &nsegs, BUS_DMA_NOWAIT); 4699 if (error != 0) { 4700 if (error != EFBIG) { 4701 device_printf(sc->sc_dev, 4702 "%s: can't map mbuf (error %d)\n", __func__, error); 4703 return error; 4704 } 4705 /* Too many DMA segments, linearize mbuf. */ 4706 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER - 1); 4707 if (m1 == NULL) { 4708 device_printf(sc->sc_dev, 4709 "%s: could not defrag mbuf\n", __func__); 4710 return ENOBUFS; 4711 } 4712 m = m1; 4713 4714 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 4715 segs, &nsegs, BUS_DMA_NOWAIT); 4716 if (error != 0) { 4717 /* XXX fix this */ 4718 /* 4719 * NB: Do not return error; 4720 * original mbuf does not exist anymore. 4721 */ 4722 device_printf(sc->sc_dev, 4723 "%s: can't map mbuf (error %d)\n", 4724 __func__, error); 4725 if_inc_counter(ni->ni_vap->iv_ifp, 4726 IFCOUNTER_OERRORS, 1); 4727 ieee80211_free_node(ni); 4728 m_freem(m); 4729 return 0; 4730 } 4731 } 4732 4733 data->m = m; 4734 data->ni = ni; 4735 4736 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d " 4737 "plcp %d\n", 4738 __func__, ring->qid, ring->cur, totlen, nsegs, tx->rate); 4739 4740 /* Fill TX descriptor. */ 4741 desc->nsegs = 1; 4742 if (m->m_len != 0) 4743 desc->nsegs += nsegs; 4744 /* First DMA segment is used by the TX command. */ 4745 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 4746 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 4747 (4 + sizeof (*tx) + hdrlen + pad) << 4); 4748 /* Other DMA segments are for data payload. */ 4749 seg = &segs[0]; 4750 for (i = 1; i <= nsegs; i++) { 4751 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 4752 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 4753 seg->ds_len << 4); 4754 seg++; 4755 } 4756 4757 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 4758 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, 4759 BUS_DMASYNC_PREWRITE); 4760 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 4761 BUS_DMASYNC_PREWRITE); 4762 4763 /* Update TX scheduler. */ 4764 if (ring->qid >= sc->firstaggqueue) 4765 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 4766 4767 /* Kick TX ring. */ 4768 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 4769 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 4770 4771 /* Mark TX ring as full if we reach a certain threshold. */ 4772 if (++ring->queued > IWN_TX_RING_HIMARK) 4773 sc->qfullmsk |= 1 << ring->qid; 4774 4775 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 4776 4777 return 0; 4778 } 4779 4780 static void 4781 iwn_xmit_task(void *arg0, int pending) 4782 { 4783 struct iwn_softc *sc = arg0; 4784 struct ieee80211_node *ni; 4785 struct mbuf *m; 4786 int error; 4787 struct ieee80211_bpf_params p; 4788 int have_p; 4789 4790 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: called\n", __func__); 4791 4792 IWN_LOCK(sc); 4793 /* 4794 * Dequeue frames, attempt to transmit, 4795 * then disable beaconwait when we're done. 4796 */ 4797 while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) { 4798 have_p = 0; 4799 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 4800 4801 /* Get xmit params if appropriate */ 4802 if (ieee80211_get_xmit_params(m, &p) == 0) 4803 have_p = 1; 4804 4805 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: m=%p, have_p=%d\n", 4806 __func__, m, have_p); 4807 4808 /* If we have xmit params, use them */ 4809 if (have_p) 4810 error = iwn_tx_data_raw(sc, m, ni, &p); 4811 else 4812 error = iwn_tx_data(sc, m, ni); 4813 4814 if (error != 0) { 4815 if_inc_counter(ni->ni_vap->iv_ifp, 4816 IFCOUNTER_OERRORS, 1); 4817 ieee80211_free_node(ni); 4818 m_freem(m); 4819 } 4820 } 4821 4822 sc->sc_beacon_wait = 0; 4823 IWN_UNLOCK(sc); 4824 } 4825 4826 /* 4827 * raw frame xmit - free node/reference if failed. 4828 */ 4829 static int 4830 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 4831 const struct ieee80211_bpf_params *params) 4832 { 4833 struct ieee80211com *ic = ni->ni_ic; 4834 struct iwn_softc *sc = ic->ic_softc; 4835 int error = 0; 4836 4837 DPRINTF(sc, IWN_DEBUG_XMIT | IWN_DEBUG_TRACE, "->%s begin\n", __func__); 4838 4839 IWN_LOCK(sc); 4840 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0) { 4841 m_freem(m); 4842 IWN_UNLOCK(sc); 4843 return (ENETDOWN); 4844 } 4845 4846 /* queue frame if we have to */ 4847 if (sc->sc_beacon_wait) { 4848 if (iwn_xmit_queue_enqueue(sc, m) != 0) { 4849 m_freem(m); 4850 IWN_UNLOCK(sc); 4851 return (ENOBUFS); 4852 } 4853 /* Queued, so just return OK */ 4854 IWN_UNLOCK(sc); 4855 return (0); 4856 } 4857 4858 if (params == NULL) { 4859 /* 4860 * Legacy path; interpret frame contents to decide 4861 * precisely how to send the frame. 4862 */ 4863 error = iwn_tx_data(sc, m, ni); 4864 } else { 4865 /* 4866 * Caller supplied explicit parameters to use in 4867 * sending the frame. 4868 */ 4869 error = iwn_tx_data_raw(sc, m, ni, params); 4870 } 4871 if (error == 0) 4872 sc->sc_tx_timer = 5; 4873 else 4874 m_freem(m); 4875 4876 IWN_UNLOCK(sc); 4877 4878 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s: end\n",__func__); 4879 4880 return (error); 4881 } 4882 4883 /* 4884 * transmit - don't free mbuf if failed; don't free node ref if failed. 4885 */ 4886 static int 4887 iwn_transmit(struct ieee80211com *ic, struct mbuf *m) 4888 { 4889 struct iwn_softc *sc = ic->ic_softc; 4890 struct ieee80211_node *ni; 4891 int error; 4892 4893 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 4894 4895 IWN_LOCK(sc); 4896 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0 || sc->sc_beacon_wait) { 4897 IWN_UNLOCK(sc); 4898 return (ENXIO); 4899 } 4900 4901 if (sc->qfullmsk) { 4902 IWN_UNLOCK(sc); 4903 return (ENOBUFS); 4904 } 4905 4906 error = iwn_tx_data(sc, m, ni); 4907 if (!error) 4908 sc->sc_tx_timer = 5; 4909 IWN_UNLOCK(sc); 4910 return (error); 4911 } 4912 4913 static void 4914 iwn_scan_timeout(void *arg) 4915 { 4916 struct iwn_softc *sc = arg; 4917 struct ieee80211com *ic = &sc->sc_ic; 4918 4919 ic_printf(ic, "scan timeout\n"); 4920 ieee80211_restart_all(ic); 4921 } 4922 4923 static void 4924 iwn_watchdog(void *arg) 4925 { 4926 struct iwn_softc *sc = arg; 4927 struct ieee80211com *ic = &sc->sc_ic; 4928 4929 IWN_LOCK_ASSERT(sc); 4930 4931 KASSERT(sc->sc_flags & IWN_FLAG_RUNNING, ("not running")); 4932 4933 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4934 4935 if (sc->sc_tx_timer > 0) { 4936 if (--sc->sc_tx_timer == 0) { 4937 ic_printf(ic, "device timeout\n"); 4938 ieee80211_restart_all(ic); 4939 return; 4940 } 4941 } 4942 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc); 4943 } 4944 4945 static int 4946 iwn_cdev_open(struct cdev *dev, int flags, int type, struct thread *td) 4947 { 4948 4949 return (0); 4950 } 4951 4952 static int 4953 iwn_cdev_close(struct cdev *dev, int flags, int type, struct thread *td) 4954 { 4955 4956 return (0); 4957 } 4958 4959 static int 4960 iwn_cdev_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag, 4961 struct thread *td) 4962 { 4963 int rc; 4964 struct iwn_softc *sc = dev->si_drv1; 4965 struct iwn_ioctl_data *d; 4966 4967 rc = priv_check(td, PRIV_DRIVER); 4968 if (rc != 0) 4969 return (0); 4970 4971 switch (cmd) { 4972 case SIOCGIWNSTATS: 4973 d = (struct iwn_ioctl_data *) data; 4974 IWN_LOCK(sc); 4975 /* XXX validate permissions/memory/etc? */ 4976 rc = copyout(&sc->last_stat, d->dst_addr, sizeof(struct iwn_stats)); 4977 IWN_UNLOCK(sc); 4978 break; 4979 case SIOCZIWNSTATS: 4980 IWN_LOCK(sc); 4981 memset(&sc->last_stat, 0, sizeof(struct iwn_stats)); 4982 IWN_UNLOCK(sc); 4983 break; 4984 default: 4985 rc = EINVAL; 4986 break; 4987 } 4988 return (rc); 4989 } 4990 4991 static int 4992 iwn_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 4993 { 4994 4995 return (ENOTTY); 4996 } 4997 4998 static void 4999 iwn_parent(struct ieee80211com *ic) 5000 { 5001 struct iwn_softc *sc = ic->ic_softc; 5002 struct ieee80211vap *vap; 5003 int error; 5004 5005 if (ic->ic_nrunning > 0) { 5006 error = iwn_init(sc); 5007 5008 switch (error) { 5009 case 0: 5010 ieee80211_start_all(ic); 5011 break; 5012 case 1: 5013 /* radio is disabled via RFkill switch */ 5014 taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task); 5015 break; 5016 default: 5017 vap = TAILQ_FIRST(&ic->ic_vaps); 5018 if (vap != NULL) 5019 ieee80211_stop(vap); 5020 break; 5021 } 5022 } else 5023 iwn_stop(sc); 5024 } 5025 5026 /* 5027 * Send a command to the firmware. 5028 */ 5029 static int 5030 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 5031 { 5032 struct iwn_tx_ring *ring; 5033 struct iwn_tx_desc *desc; 5034 struct iwn_tx_data *data; 5035 struct iwn_tx_cmd *cmd; 5036 struct mbuf *m; 5037 bus_addr_t paddr; 5038 int totlen, error; 5039 int cmd_queue_num; 5040 5041 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5042 5043 if (async == 0) 5044 IWN_LOCK_ASSERT(sc); 5045 5046 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) 5047 cmd_queue_num = IWN_PAN_CMD_QUEUE; 5048 else 5049 cmd_queue_num = IWN_CMD_QUEUE_NUM; 5050 5051 ring = &sc->txq[cmd_queue_num]; 5052 desc = &ring->desc[ring->cur]; 5053 data = &ring->data[ring->cur]; 5054 totlen = 4 + size; 5055 5056 if (size > sizeof cmd->data) { 5057 /* Command is too large to fit in a descriptor. */ 5058 if (totlen > MCLBYTES) 5059 return EINVAL; 5060 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 5061 if (m == NULL) 5062 return ENOMEM; 5063 cmd = mtod(m, struct iwn_tx_cmd *); 5064 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, 5065 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 5066 if (error != 0) { 5067 m_freem(m); 5068 return error; 5069 } 5070 data->m = m; 5071 } else { 5072 cmd = &ring->cmd[ring->cur]; 5073 paddr = data->cmd_paddr; 5074 } 5075 5076 cmd->code = code; 5077 cmd->flags = 0; 5078 cmd->qid = ring->qid; 5079 cmd->idx = ring->cur; 5080 memcpy(cmd->data, buf, size); 5081 5082 desc->nsegs = 1; 5083 desc->segs[0].addr = htole32(IWN_LOADDR(paddr)); 5084 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4); 5085 5086 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n", 5087 __func__, iwn_intr_str(cmd->code), cmd->code, 5088 cmd->flags, cmd->qid, cmd->idx); 5089 5090 if (size > sizeof cmd->data) { 5091 bus_dmamap_sync(ring->data_dmat, data->map, 5092 BUS_DMASYNC_PREWRITE); 5093 } else { 5094 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, 5095 BUS_DMASYNC_PREWRITE); 5096 } 5097 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 5098 BUS_DMASYNC_PREWRITE); 5099 5100 /* Kick command ring. */ 5101 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 5102 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 5103 5104 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 5105 5106 return async ? 0 : msleep(desc, &sc->sc_mtx, PCATCH, "iwncmd", hz); 5107 } 5108 5109 static int 5110 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 5111 { 5112 struct iwn4965_node_info hnode; 5113 caddr_t src, dst; 5114 5115 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5116 5117 /* 5118 * We use the node structure for 5000 Series internally (it is 5119 * a superset of the one for 4965AGN). We thus copy the common 5120 * fields before sending the command. 5121 */ 5122 src = (caddr_t)node; 5123 dst = (caddr_t)&hnode; 5124 memcpy(dst, src, 48); 5125 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */ 5126 memcpy(dst + 48, src + 72, 20); 5127 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async); 5128 } 5129 5130 static int 5131 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 5132 { 5133 5134 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5135 5136 /* Direct mapping. */ 5137 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async); 5138 } 5139 5140 static int 5141 iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni) 5142 { 5143 struct iwn_node *wn = (void *)ni; 5144 struct ieee80211_rateset *rs; 5145 struct iwn_cmd_link_quality linkq; 5146 int i, rate, txrate; 5147 int is_11n; 5148 5149 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5150 5151 memset(&linkq, 0, sizeof linkq); 5152 linkq.id = wn->id; 5153 linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc); 5154 linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc); 5155 5156 linkq.ampdu_max = 32; /* XXX negotiated? */ 5157 linkq.ampdu_threshold = 3; 5158 linkq.ampdu_limit = htole16(4000); /* 4ms */ 5159 5160 DPRINTF(sc, IWN_DEBUG_XMIT, 5161 "%s: 1stream antenna=0x%02x, 2stream antenna=0x%02x, ntxstreams=%d\n", 5162 __func__, 5163 linkq.antmsk_1stream, 5164 linkq.antmsk_2stream, 5165 sc->ntxchains); 5166 5167 /* 5168 * Are we using 11n rates? Ensure the channel is 5169 * 11n _and_ we have some 11n rates, or don't 5170 * try. 5171 */ 5172 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0) { 5173 rs = (struct ieee80211_rateset *) &ni->ni_htrates; 5174 is_11n = 1; 5175 } else { 5176 rs = &ni->ni_rates; 5177 is_11n = 0; 5178 } 5179 5180 /* Start at highest available bit-rate. */ 5181 /* 5182 * XXX this is all very dirty! 5183 */ 5184 if (is_11n) 5185 txrate = ni->ni_htrates.rs_nrates - 1; 5186 else 5187 txrate = rs->rs_nrates - 1; 5188 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) { 5189 uint32_t plcp; 5190 5191 /* 5192 * XXX TODO: ensure the last two slots are the two lowest 5193 * rate entries, just for now. 5194 */ 5195 if (i == 14 || i == 15) 5196 txrate = 0; 5197 5198 if (is_11n) 5199 rate = IEEE80211_RATE_MCS | rs->rs_rates[txrate]; 5200 else 5201 rate = IEEE80211_RV(rs->rs_rates[txrate]); 5202 5203 /* Do rate -> PLCP config mapping */ 5204 plcp = iwn_rate_to_plcp(sc, ni, rate); 5205 linkq.retry[i] = plcp; 5206 DPRINTF(sc, IWN_DEBUG_XMIT, 5207 "%s: i=%d, txrate=%d, rate=0x%02x, plcp=0x%08x\n", 5208 __func__, 5209 i, 5210 txrate, 5211 rate, 5212 le32toh(plcp)); 5213 5214 /* 5215 * The mimo field is an index into the table which 5216 * indicates the first index where it and subsequent entries 5217 * will not be using MIMO. 5218 * 5219 * Since we're filling linkq from 0..15 and we're filling 5220 * from the highest MCS rates to the lowest rates, if we 5221 * _are_ doing a dual-stream rate, set mimo to idx+1 (ie, 5222 * the next entry.) That way if the next entry is a non-MIMO 5223 * entry, we're already pointing at it. 5224 */ 5225 if ((le32toh(plcp) & IWN_RFLAG_MCS) && 5226 IEEE80211_RV(le32toh(plcp)) > 7) 5227 linkq.mimo = i + 1; 5228 5229 /* Next retry at immediate lower bit-rate. */ 5230 if (txrate > 0) 5231 txrate--; 5232 } 5233 /* 5234 * If we reached the end of the list and indeed we hit 5235 * all MIMO rates (eg 5300 doing MCS23-15) then yes, 5236 * set mimo to 15. Setting it to 16 panics the firmware. 5237 */ 5238 if (linkq.mimo > 15) 5239 linkq.mimo = 15; 5240 5241 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: mimo = %d\n", __func__, linkq.mimo); 5242 5243 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 5244 5245 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1); 5246 } 5247 5248 /* 5249 * Broadcast node is used to send group-addressed and management frames. 5250 */ 5251 static int 5252 iwn_add_broadcast_node(struct iwn_softc *sc, int async) 5253 { 5254 struct iwn_ops *ops = &sc->ops; 5255 struct ieee80211com *ic = &sc->sc_ic; 5256 struct iwn_node_info node; 5257 struct iwn_cmd_link_quality linkq; 5258 uint8_t txant; 5259 int i, error; 5260 5261 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5262 5263 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX]; 5264 5265 memset(&node, 0, sizeof node); 5266 IEEE80211_ADDR_COPY(node.macaddr, ieee80211broadcastaddr); 5267 node.id = sc->broadcast_id; 5268 DPRINTF(sc, IWN_DEBUG_RESET, "%s: adding broadcast node\n", __func__); 5269 if ((error = ops->add_node(sc, &node, async)) != 0) 5270 return error; 5271 5272 /* Use the first valid TX antenna. */ 5273 txant = IWN_LSB(sc->txchainmask); 5274 5275 memset(&linkq, 0, sizeof linkq); 5276 linkq.id = sc->broadcast_id; 5277 linkq.antmsk_1stream = iwn_get_1stream_tx_antmask(sc); 5278 linkq.antmsk_2stream = iwn_get_2stream_tx_antmask(sc); 5279 linkq.ampdu_max = 64; 5280 linkq.ampdu_threshold = 3; 5281 linkq.ampdu_limit = htole16(4000); /* 4ms */ 5282 5283 /* Use lowest mandatory bit-rate. */ 5284 /* XXX rate table lookup? */ 5285 if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 5286 linkq.retry[0] = htole32(0xd); 5287 else 5288 linkq.retry[0] = htole32(10 | IWN_RFLAG_CCK); 5289 linkq.retry[0] |= htole32(IWN_RFLAG_ANT(txant)); 5290 /* Use same bit-rate for all TX retries. */ 5291 for (i = 1; i < IWN_MAX_TX_RETRIES; i++) { 5292 linkq.retry[i] = linkq.retry[0]; 5293 } 5294 5295 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 5296 5297 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async); 5298 } 5299 5300 static int 5301 iwn_updateedca(struct ieee80211com *ic) 5302 { 5303 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ 5304 struct iwn_softc *sc = ic->ic_softc; 5305 struct iwn_edca_params cmd; 5306 struct chanAccParams chp; 5307 int aci; 5308 5309 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5310 5311 ieee80211_wme_ic_getparams(ic, &chp); 5312 5313 memset(&cmd, 0, sizeof cmd); 5314 cmd.flags = htole32(IWN_EDCA_UPDATE); 5315 5316 IEEE80211_LOCK(ic); 5317 for (aci = 0; aci < WME_NUM_AC; aci++) { 5318 const struct wmeParams *ac = &chp.cap_wmeParams[aci]; 5319 cmd.ac[aci].aifsn = ac->wmep_aifsn; 5320 cmd.ac[aci].cwmin = htole16(IWN_EXP2(ac->wmep_logcwmin)); 5321 cmd.ac[aci].cwmax = htole16(IWN_EXP2(ac->wmep_logcwmax)); 5322 cmd.ac[aci].txoplimit = 5323 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit)); 5324 } 5325 IEEE80211_UNLOCK(ic); 5326 5327 IWN_LOCK(sc); 5328 (void)iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1); 5329 IWN_UNLOCK(sc); 5330 5331 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 5332 5333 return 0; 5334 #undef IWN_EXP2 5335 } 5336 5337 static void 5338 iwn_set_promisc(struct iwn_softc *sc) 5339 { 5340 struct ieee80211com *ic = &sc->sc_ic; 5341 uint32_t promisc_filter; 5342 5343 promisc_filter = IWN_FILTER_CTL | IWN_FILTER_PROMISC; 5344 if (ic->ic_promisc > 0 || ic->ic_opmode == IEEE80211_M_MONITOR) 5345 sc->rxon->filter |= htole32(promisc_filter); 5346 else 5347 sc->rxon->filter &= ~htole32(promisc_filter); 5348 } 5349 5350 static void 5351 iwn_update_promisc(struct ieee80211com *ic) 5352 { 5353 struct iwn_softc *sc = ic->ic_softc; 5354 int error; 5355 5356 if (ic->ic_opmode == IEEE80211_M_MONITOR) 5357 return; /* nothing to do */ 5358 5359 IWN_LOCK(sc); 5360 if (!(sc->sc_flags & IWN_FLAG_RUNNING)) { 5361 IWN_UNLOCK(sc); 5362 return; 5363 } 5364 5365 iwn_set_promisc(sc); 5366 if ((error = iwn_send_rxon(sc, 1, 1)) != 0) { 5367 device_printf(sc->sc_dev, 5368 "%s: could not send RXON, error %d\n", 5369 __func__, error); 5370 } 5371 IWN_UNLOCK(sc); 5372 } 5373 5374 static void 5375 iwn_update_mcast(struct ieee80211com *ic) 5376 { 5377 /* Ignore */ 5378 } 5379 5380 static void 5381 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on) 5382 { 5383 struct iwn_cmd_led led; 5384 5385 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5386 5387 #if 0 5388 /* XXX don't set LEDs during scan? */ 5389 if (sc->sc_is_scanning) 5390 return; 5391 #endif 5392 5393 /* Clear microcode LED ownership. */ 5394 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL); 5395 5396 led.which = which; 5397 led.unit = htole32(10000); /* on/off in unit of 100ms */ 5398 led.off = off; 5399 led.on = on; 5400 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1); 5401 } 5402 5403 /* 5404 * Set the critical temperature at which the firmware will stop the radio 5405 * and notify us. 5406 */ 5407 static int 5408 iwn_set_critical_temp(struct iwn_softc *sc) 5409 { 5410 struct iwn_critical_temp crit; 5411 int32_t temp; 5412 5413 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5414 5415 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF); 5416 5417 if (sc->hw_type == IWN_HW_REV_TYPE_5150) 5418 temp = (IWN_CTOK(110) - sc->temp_off) * -5; 5419 else if (sc->hw_type == IWN_HW_REV_TYPE_4965) 5420 temp = IWN_CTOK(110); 5421 else 5422 temp = 110; 5423 memset(&crit, 0, sizeof crit); 5424 crit.tempR = htole32(temp); 5425 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %d\n", temp); 5426 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0); 5427 } 5428 5429 static int 5430 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni) 5431 { 5432 struct iwn_cmd_timing cmd; 5433 uint64_t val, mod; 5434 5435 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5436 5437 memset(&cmd, 0, sizeof cmd); 5438 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 5439 cmd.bintval = htole16(ni->ni_intval); 5440 cmd.lintval = htole16(10); 5441 5442 /* Compute remaining time until next beacon. */ 5443 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU; 5444 mod = le64toh(cmd.tstamp) % val; 5445 cmd.binitval = htole32((uint32_t)(val - mod)); 5446 5447 DPRINTF(sc, IWN_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n", 5448 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod)); 5449 5450 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1); 5451 } 5452 5453 static void 5454 iwn4965_power_calibration(struct iwn_softc *sc, int temp) 5455 { 5456 5457 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5458 5459 /* Adjust TX power if need be (delta >= 3 degC). */ 5460 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n", 5461 __func__, sc->temp, temp); 5462 if (abs(temp - sc->temp) >= 3) { 5463 /* Record temperature of last calibration. */ 5464 sc->temp = temp; 5465 (void)iwn4965_set_txpower(sc, 1); 5466 } 5467 } 5468 5469 /* 5470 * Set TX power for current channel (each rate has its own power settings). 5471 * This function takes into account the regulatory information from EEPROM, 5472 * the current temperature and the current voltage. 5473 */ 5474 static int 5475 iwn4965_set_txpower(struct iwn_softc *sc, int async) 5476 { 5477 /* Fixed-point arithmetic division using a n-bit fractional part. */ 5478 #define fdivround(a, b, n) \ 5479 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 5480 /* Linear interpolation. */ 5481 #define interpolate(x, x1, y1, x2, y2, n) \ 5482 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 5483 5484 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 }; 5485 struct iwn_ucode_info *uc = &sc->ucode_info; 5486 struct iwn4965_cmd_txpower cmd; 5487 struct iwn4965_eeprom_chan_samples *chans; 5488 const uint8_t *rf_gain, *dsp_gain; 5489 int32_t vdiff, tdiff; 5490 int i, is_chan_5ghz, c, grp, maxpwr; 5491 uint8_t chan; 5492 5493 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX]; 5494 /* Retrieve current channel from last RXON. */ 5495 chan = sc->rxon->chan; 5496 is_chan_5ghz = (sc->rxon->flags & htole32(IWN_RXON_24GHZ)) == 0; 5497 DPRINTF(sc, IWN_DEBUG_RESET, "setting TX power for channel %d\n", 5498 chan); 5499 5500 memset(&cmd, 0, sizeof cmd); 5501 cmd.band = is_chan_5ghz ? 0 : 1; 5502 cmd.chan = chan; 5503 5504 if (is_chan_5ghz) { 5505 maxpwr = sc->maxpwr5GHz; 5506 rf_gain = iwn4965_rf_gain_5ghz; 5507 dsp_gain = iwn4965_dsp_gain_5ghz; 5508 } else { 5509 maxpwr = sc->maxpwr2GHz; 5510 rf_gain = iwn4965_rf_gain_2ghz; 5511 dsp_gain = iwn4965_dsp_gain_2ghz; 5512 } 5513 5514 /* Compute voltage compensation. */ 5515 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7; 5516 if (vdiff > 0) 5517 vdiff *= 2; 5518 if (abs(vdiff) > 2) 5519 vdiff = 0; 5520 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5521 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n", 5522 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage); 5523 5524 /* Get channel attenuation group. */ 5525 if (chan <= 20) /* 1-20 */ 5526 grp = 4; 5527 else if (chan <= 43) /* 34-43 */ 5528 grp = 0; 5529 else if (chan <= 70) /* 44-70 */ 5530 grp = 1; 5531 else if (chan <= 124) /* 71-124 */ 5532 grp = 2; 5533 else /* 125-200 */ 5534 grp = 3; 5535 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5536 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp); 5537 5538 /* Get channel sub-band. */ 5539 for (i = 0; i < IWN_NBANDS; i++) 5540 if (sc->bands[i].lo != 0 && 5541 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi) 5542 break; 5543 if (i == IWN_NBANDS) /* Can't happen in real-life. */ 5544 return EINVAL; 5545 chans = sc->bands[i].chans; 5546 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5547 "%s: chan %d sub-band=%d\n", __func__, chan, i); 5548 5549 for (c = 0; c < 2; c++) { 5550 uint8_t power, gain, temp; 5551 int maxchpwr, pwr, ridx, idx; 5552 5553 power = interpolate(chan, 5554 chans[0].num, chans[0].samples[c][1].power, 5555 chans[1].num, chans[1].samples[c][1].power, 1); 5556 gain = interpolate(chan, 5557 chans[0].num, chans[0].samples[c][1].gain, 5558 chans[1].num, chans[1].samples[c][1].gain, 1); 5559 temp = interpolate(chan, 5560 chans[0].num, chans[0].samples[c][1].temp, 5561 chans[1].num, chans[1].samples[c][1].temp, 1); 5562 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5563 "%s: Tx chain %d: power=%d gain=%d temp=%d\n", 5564 __func__, c, power, gain, temp); 5565 5566 /* Compute temperature compensation. */ 5567 tdiff = ((sc->temp - temp) * 2) / tdiv[grp]; 5568 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5569 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n", 5570 __func__, tdiff, sc->temp, temp); 5571 5572 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) { 5573 /* Convert dBm to half-dBm. */ 5574 maxchpwr = sc->maxpwr[chan] * 2; 5575 if ((ridx / 8) & 1) 5576 maxchpwr -= 6; /* MIMO 2T: -3dB */ 5577 5578 pwr = maxpwr; 5579 5580 /* Adjust TX power based on rate. */ 5581 if ((ridx % 8) == 5) 5582 pwr -= 15; /* OFDM48: -7.5dB */ 5583 else if ((ridx % 8) == 6) 5584 pwr -= 17; /* OFDM54: -8.5dB */ 5585 else if ((ridx % 8) == 7) 5586 pwr -= 20; /* OFDM60: -10dB */ 5587 else 5588 pwr -= 10; /* Others: -5dB */ 5589 5590 /* Do not exceed channel max TX power. */ 5591 if (pwr > maxchpwr) 5592 pwr = maxchpwr; 5593 5594 idx = gain - (pwr - power) - tdiff - vdiff; 5595 if ((ridx / 8) & 1) /* MIMO */ 5596 idx += (int32_t)le32toh(uc->atten[grp][c]); 5597 5598 if (cmd.band == 0) 5599 idx += 9; /* 5GHz */ 5600 if (ridx == IWN_RIDX_MAX) 5601 idx += 5; /* CCK */ 5602 5603 /* Make sure idx stays in a valid range. */ 5604 if (idx < 0) 5605 idx = 0; 5606 else if (idx > IWN4965_MAX_PWR_INDEX) 5607 idx = IWN4965_MAX_PWR_INDEX; 5608 5609 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5610 "%s: Tx chain %d, rate idx %d: power=%d\n", 5611 __func__, c, ridx, idx); 5612 cmd.power[ridx].rf_gain[c] = rf_gain[idx]; 5613 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx]; 5614 } 5615 } 5616 5617 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 5618 "%s: set tx power for chan %d\n", __func__, chan); 5619 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async); 5620 5621 #undef interpolate 5622 #undef fdivround 5623 } 5624 5625 static int 5626 iwn5000_set_txpower(struct iwn_softc *sc, int async) 5627 { 5628 struct iwn5000_cmd_txpower cmd; 5629 int cmdid; 5630 5631 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5632 5633 /* 5634 * TX power calibration is handled automatically by the firmware 5635 * for 5000 Series. 5636 */ 5637 memset(&cmd, 0, sizeof cmd); 5638 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */ 5639 cmd.flags = IWN5000_TXPOWER_NO_CLOSED; 5640 cmd.srv_limit = IWN5000_TXPOWER_AUTO; 5641 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT, 5642 "%s: setting TX power; rev=%d\n", 5643 __func__, 5644 IWN_UCODE_API(sc->ucode_rev)); 5645 if (IWN_UCODE_API(sc->ucode_rev) == 1) 5646 cmdid = IWN_CMD_TXPOWER_DBM_V1; 5647 else 5648 cmdid = IWN_CMD_TXPOWER_DBM; 5649 return iwn_cmd(sc, cmdid, &cmd, sizeof cmd, async); 5650 } 5651 5652 /* 5653 * Retrieve the maximum RSSI (in dBm) among receivers. 5654 */ 5655 static int 5656 iwn4965_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 5657 { 5658 struct iwn4965_rx_phystat *phy = (void *)stat->phybuf; 5659 uint8_t mask, agc; 5660 int rssi; 5661 5662 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5663 5664 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC; 5665 agc = (le16toh(phy->agc) >> 7) & 0x7f; 5666 5667 rssi = 0; 5668 if (mask & IWN_ANT_A) 5669 rssi = MAX(rssi, phy->rssi[0]); 5670 if (mask & IWN_ANT_B) 5671 rssi = MAX(rssi, phy->rssi[2]); 5672 if (mask & IWN_ANT_C) 5673 rssi = MAX(rssi, phy->rssi[4]); 5674 5675 DPRINTF(sc, IWN_DEBUG_RECV, 5676 "%s: agc %d mask 0x%x rssi %d %d %d result %d\n", __func__, agc, 5677 mask, phy->rssi[0], phy->rssi[2], phy->rssi[4], 5678 rssi - agc - IWN_RSSI_TO_DBM); 5679 return rssi - agc - IWN_RSSI_TO_DBM; 5680 } 5681 5682 static int 5683 iwn5000_get_rssi(struct iwn_softc *sc, struct iwn_rx_stat *stat) 5684 { 5685 struct iwn5000_rx_phystat *phy = (void *)stat->phybuf; 5686 uint8_t agc; 5687 int rssi; 5688 5689 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5690 5691 agc = (le32toh(phy->agc) >> 9) & 0x7f; 5692 5693 rssi = MAX(le16toh(phy->rssi[0]) & 0xff, 5694 le16toh(phy->rssi[1]) & 0xff); 5695 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi); 5696 5697 DPRINTF(sc, IWN_DEBUG_RECV, 5698 "%s: agc %d rssi %d %d %d result %d\n", __func__, agc, 5699 phy->rssi[0], phy->rssi[1], phy->rssi[2], 5700 rssi - agc - IWN_RSSI_TO_DBM); 5701 return rssi - agc - IWN_RSSI_TO_DBM; 5702 } 5703 5704 /* 5705 * Retrieve the average noise (in dBm) among receivers. 5706 */ 5707 static int 5708 iwn_get_noise(const struct iwn_rx_general_stats *stats) 5709 { 5710 int i, total, nbant, noise; 5711 5712 total = nbant = 0; 5713 for (i = 0; i < 3; i++) { 5714 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0) 5715 continue; 5716 total += noise; 5717 nbant++; 5718 } 5719 /* There should be at least one antenna but check anyway. */ 5720 return (nbant == 0) ? -127 : (total / nbant) - 107; 5721 } 5722 5723 /* 5724 * Compute temperature (in degC) from last received statistics. 5725 */ 5726 static int 5727 iwn4965_get_temperature(struct iwn_softc *sc) 5728 { 5729 struct iwn_ucode_info *uc = &sc->ucode_info; 5730 int32_t r1, r2, r3, r4, temp; 5731 5732 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5733 5734 r1 = le32toh(uc->temp[0].chan20MHz); 5735 r2 = le32toh(uc->temp[1].chan20MHz); 5736 r3 = le32toh(uc->temp[2].chan20MHz); 5737 r4 = le32toh(sc->rawtemp); 5738 5739 if (r1 == r3) /* Prevents division by 0 (should not happen). */ 5740 return 0; 5741 5742 /* Sign-extend 23-bit R4 value to 32-bit. */ 5743 r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000; 5744 /* Compute temperature in Kelvin. */ 5745 temp = (259 * (r4 - r2)) / (r3 - r1); 5746 temp = (temp * 97) / 100 + 8; 5747 5748 DPRINTF(sc, IWN_DEBUG_ANY, "temperature %dK/%dC\n", temp, 5749 IWN_KTOC(temp)); 5750 return IWN_KTOC(temp); 5751 } 5752 5753 static int 5754 iwn5000_get_temperature(struct iwn_softc *sc) 5755 { 5756 int32_t temp; 5757 5758 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5759 5760 /* 5761 * Temperature is not used by the driver for 5000 Series because 5762 * TX power calibration is handled by firmware. 5763 */ 5764 temp = le32toh(sc->rawtemp); 5765 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 5766 temp = (temp / -5) + sc->temp_off; 5767 temp = IWN_KTOC(temp); 5768 } 5769 return temp; 5770 } 5771 5772 /* 5773 * Initialize sensitivity calibration state machine. 5774 */ 5775 static int 5776 iwn_init_sensitivity(struct iwn_softc *sc) 5777 { 5778 struct iwn_ops *ops = &sc->ops; 5779 struct iwn_calib_state *calib = &sc->calib; 5780 uint32_t flags; 5781 int error; 5782 5783 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5784 5785 /* Reset calibration state machine. */ 5786 memset(calib, 0, sizeof (*calib)); 5787 calib->state = IWN_CALIB_STATE_INIT; 5788 calib->cck_state = IWN_CCK_STATE_HIFA; 5789 /* Set initial correlation values. */ 5790 calib->ofdm_x1 = sc->limits->min_ofdm_x1; 5791 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1; 5792 calib->ofdm_x4 = sc->limits->min_ofdm_x4; 5793 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4; 5794 calib->cck_x4 = 125; 5795 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4; 5796 calib->energy_cck = sc->limits->energy_cck; 5797 5798 /* Write initial sensitivity. */ 5799 if ((error = iwn_send_sensitivity(sc)) != 0) 5800 return error; 5801 5802 /* Write initial gains. */ 5803 if ((error = ops->init_gains(sc)) != 0) 5804 return error; 5805 5806 /* Request statistics at each beacon interval. */ 5807 flags = 0; 5808 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: sending request for statistics\n", 5809 __func__); 5810 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1); 5811 } 5812 5813 /* 5814 * Collect noise and RSSI statistics for the first 20 beacons received 5815 * after association and use them to determine connected antennas and 5816 * to set differential gains. 5817 */ 5818 static void 5819 iwn_collect_noise(struct iwn_softc *sc, 5820 const struct iwn_rx_general_stats *stats) 5821 { 5822 struct iwn_ops *ops = &sc->ops; 5823 struct iwn_calib_state *calib = &sc->calib; 5824 struct ieee80211com *ic = &sc->sc_ic; 5825 uint32_t val; 5826 int i; 5827 5828 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5829 5830 /* Accumulate RSSI and noise for all 3 antennas. */ 5831 for (i = 0; i < 3; i++) { 5832 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff; 5833 calib->noise[i] += le32toh(stats->noise[i]) & 0xff; 5834 } 5835 /* NB: We update differential gains only once after 20 beacons. */ 5836 if (++calib->nbeacons < 20) 5837 return; 5838 5839 /* Determine highest average RSSI. */ 5840 val = MAX(calib->rssi[0], calib->rssi[1]); 5841 val = MAX(calib->rssi[2], val); 5842 5843 /* Determine which antennas are connected. */ 5844 sc->chainmask = sc->rxchainmask; 5845 for (i = 0; i < 3; i++) 5846 if (val - calib->rssi[i] > 15 * 20) 5847 sc->chainmask &= ~(1 << i); 5848 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT, 5849 "%s: RX chains mask: theoretical=0x%x, actual=0x%x\n", 5850 __func__, sc->rxchainmask, sc->chainmask); 5851 5852 /* If none of the TX antennas are connected, keep at least one. */ 5853 if ((sc->chainmask & sc->txchainmask) == 0) 5854 sc->chainmask |= IWN_LSB(sc->txchainmask); 5855 5856 (void)ops->set_gains(sc); 5857 calib->state = IWN_CALIB_STATE_RUN; 5858 5859 #ifdef notyet 5860 /* XXX Disable RX chains with no antennas connected. */ 5861 sc->rxon->rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask)); 5862 if (sc->sc_is_scanning) 5863 device_printf(sc->sc_dev, 5864 "%s: is_scanning set, before RXON\n", 5865 __func__); 5866 (void)iwn_cmd(sc, IWN_CMD_RXON, sc->rxon, sc->rxonsz, 1); 5867 #endif 5868 5869 /* Enable power-saving mode if requested by user. */ 5870 if (ic->ic_flags & IEEE80211_F_PMGTON) 5871 (void)iwn_set_pslevel(sc, 0, 3, 1); 5872 5873 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 5874 5875 } 5876 5877 static int 5878 iwn4965_init_gains(struct iwn_softc *sc) 5879 { 5880 struct iwn_phy_calib_gain cmd; 5881 5882 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5883 5884 memset(&cmd, 0, sizeof cmd); 5885 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 5886 /* Differential gains initially set to 0 for all 3 antennas. */ 5887 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 5888 "%s: setting initial differential gains\n", __func__); 5889 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 5890 } 5891 5892 static int 5893 iwn5000_init_gains(struct iwn_softc *sc) 5894 { 5895 struct iwn_phy_calib cmd; 5896 5897 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5898 5899 memset(&cmd, 0, sizeof cmd); 5900 cmd.code = sc->reset_noise_gain; 5901 cmd.ngroups = 1; 5902 cmd.isvalid = 1; 5903 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 5904 "%s: setting initial differential gains\n", __func__); 5905 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 5906 } 5907 5908 static int 5909 iwn4965_set_gains(struct iwn_softc *sc) 5910 { 5911 struct iwn_calib_state *calib = &sc->calib; 5912 struct iwn_phy_calib_gain cmd; 5913 int i, delta, noise; 5914 5915 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5916 5917 /* Get minimal noise among connected antennas. */ 5918 noise = INT_MAX; /* NB: There's at least one antenna. */ 5919 for (i = 0; i < 3; i++) 5920 if (sc->chainmask & (1 << i)) 5921 noise = MIN(calib->noise[i], noise); 5922 5923 memset(&cmd, 0, sizeof cmd); 5924 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 5925 /* Set differential gains for connected antennas. */ 5926 for (i = 0; i < 3; i++) { 5927 if (sc->chainmask & (1 << i)) { 5928 /* Compute attenuation (in unit of 1.5dB). */ 5929 delta = (noise - (int32_t)calib->noise[i]) / 30; 5930 /* NB: delta <= 0 */ 5931 /* Limit to [-4.5dB,0]. */ 5932 cmd.gain[i] = MIN(abs(delta), 3); 5933 if (delta < 0) 5934 cmd.gain[i] |= 1 << 2; /* sign bit */ 5935 } 5936 } 5937 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 5938 "setting differential gains Ant A/B/C: %x/%x/%x (%x)\n", 5939 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask); 5940 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 5941 } 5942 5943 static int 5944 iwn5000_set_gains(struct iwn_softc *sc) 5945 { 5946 struct iwn_calib_state *calib = &sc->calib; 5947 struct iwn_phy_calib_gain cmd; 5948 int i, ant, div, delta; 5949 5950 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5951 5952 /* We collected 20 beacons and !=6050 need a 1.5 factor. */ 5953 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30; 5954 5955 memset(&cmd, 0, sizeof cmd); 5956 cmd.code = sc->noise_gain; 5957 cmd.ngroups = 1; 5958 cmd.isvalid = 1; 5959 /* Get first available RX antenna as referential. */ 5960 ant = IWN_LSB(sc->rxchainmask); 5961 /* Set differential gains for other antennas. */ 5962 for (i = ant + 1; i < 3; i++) { 5963 if (sc->chainmask & (1 << i)) { 5964 /* The delta is relative to antenna "ant". */ 5965 delta = ((int32_t)calib->noise[ant] - 5966 (int32_t)calib->noise[i]) / div; 5967 /* Limit to [-4.5dB,+4.5dB]. */ 5968 cmd.gain[i - 1] = MIN(abs(delta), 3); 5969 if (delta < 0) 5970 cmd.gain[i - 1] |= 1 << 2; /* sign bit */ 5971 } 5972 } 5973 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_XMIT, 5974 "setting differential gains Ant B/C: %x/%x (%x)\n", 5975 cmd.gain[0], cmd.gain[1], sc->chainmask); 5976 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 5977 } 5978 5979 /* 5980 * Tune RF RX sensitivity based on the number of false alarms detected 5981 * during the last beacon period. 5982 */ 5983 static void 5984 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats) 5985 { 5986 #define inc(val, inc, max) \ 5987 if ((val) < (max)) { \ 5988 if ((val) < (max) - (inc)) \ 5989 (val) += (inc); \ 5990 else \ 5991 (val) = (max); \ 5992 needs_update = 1; \ 5993 } 5994 #define dec(val, dec, min) \ 5995 if ((val) > (min)) { \ 5996 if ((val) > (min) + (dec)) \ 5997 (val) -= (dec); \ 5998 else \ 5999 (val) = (min); \ 6000 needs_update = 1; \ 6001 } 6002 6003 const struct iwn_sensitivity_limits *limits = sc->limits; 6004 struct iwn_calib_state *calib = &sc->calib; 6005 uint32_t val, rxena, fa; 6006 uint32_t energy[3], energy_min; 6007 uint8_t noise[3], noise_ref; 6008 int i, needs_update = 0; 6009 6010 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 6011 6012 /* Check that we've been enabled long enough. */ 6013 if ((rxena = le32toh(stats->general.load)) == 0){ 6014 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end not so long\n", __func__); 6015 return; 6016 } 6017 6018 /* Compute number of false alarms since last call for OFDM. */ 6019 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm; 6020 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm; 6021 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 6022 6023 if (fa > 50 * rxena) { 6024 /* High false alarm count, decrease sensitivity. */ 6025 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 6026 "%s: OFDM high false alarm count: %u\n", __func__, fa); 6027 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1); 6028 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1); 6029 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4); 6030 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4); 6031 6032 } else if (fa < 5 * rxena) { 6033 /* Low false alarm count, increase sensitivity. */ 6034 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 6035 "%s: OFDM low false alarm count: %u\n", __func__, fa); 6036 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1); 6037 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1); 6038 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4); 6039 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4); 6040 } 6041 6042 /* Compute maximum noise among 3 receivers. */ 6043 for (i = 0; i < 3; i++) 6044 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff; 6045 val = MAX(noise[0], noise[1]); 6046 val = MAX(noise[2], val); 6047 /* Insert it into our samples table. */ 6048 calib->noise_samples[calib->cur_noise_sample] = val; 6049 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20; 6050 6051 /* Compute maximum noise among last 20 samples. */ 6052 noise_ref = calib->noise_samples[0]; 6053 for (i = 1; i < 20; i++) 6054 noise_ref = MAX(noise_ref, calib->noise_samples[i]); 6055 6056 /* Compute maximum energy among 3 receivers. */ 6057 for (i = 0; i < 3; i++) 6058 energy[i] = le32toh(stats->general.energy[i]); 6059 val = MIN(energy[0], energy[1]); 6060 val = MIN(energy[2], val); 6061 /* Insert it into our samples table. */ 6062 calib->energy_samples[calib->cur_energy_sample] = val; 6063 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10; 6064 6065 /* Compute minimum energy among last 10 samples. */ 6066 energy_min = calib->energy_samples[0]; 6067 for (i = 1; i < 10; i++) 6068 energy_min = MAX(energy_min, calib->energy_samples[i]); 6069 energy_min += 6; 6070 6071 /* Compute number of false alarms since last call for CCK. */ 6072 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck; 6073 fa += le32toh(stats->cck.fa) - calib->fa_cck; 6074 fa *= 200 * IEEE80211_DUR_TU; /* 200TU */ 6075 6076 if (fa > 50 * rxena) { 6077 /* High false alarm count, decrease sensitivity. */ 6078 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 6079 "%s: CCK high false alarm count: %u\n", __func__, fa); 6080 calib->cck_state = IWN_CCK_STATE_HIFA; 6081 calib->low_fa = 0; 6082 6083 if (calib->cck_x4 > 160) { 6084 calib->noise_ref = noise_ref; 6085 if (calib->energy_cck > 2) 6086 dec(calib->energy_cck, 2, energy_min); 6087 } 6088 if (calib->cck_x4 < 160) { 6089 calib->cck_x4 = 161; 6090 needs_update = 1; 6091 } else 6092 inc(calib->cck_x4, 3, limits->max_cck_x4); 6093 6094 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4); 6095 6096 } else if (fa < 5 * rxena) { 6097 /* Low false alarm count, increase sensitivity. */ 6098 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 6099 "%s: CCK low false alarm count: %u\n", __func__, fa); 6100 calib->cck_state = IWN_CCK_STATE_LOFA; 6101 calib->low_fa++; 6102 6103 if (calib->cck_state != IWN_CCK_STATE_INIT && 6104 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 || 6105 calib->low_fa > 100)) { 6106 inc(calib->energy_cck, 2, limits->min_energy_cck); 6107 dec(calib->cck_x4, 3, limits->min_cck_x4); 6108 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4); 6109 } 6110 } else { 6111 /* Not worth to increase or decrease sensitivity. */ 6112 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 6113 "%s: CCK normal false alarm count: %u\n", __func__, fa); 6114 calib->low_fa = 0; 6115 calib->noise_ref = noise_ref; 6116 6117 if (calib->cck_state == IWN_CCK_STATE_HIFA) { 6118 /* Previous interval had many false alarms. */ 6119 dec(calib->energy_cck, 8, energy_min); 6120 } 6121 calib->cck_state = IWN_CCK_STATE_INIT; 6122 } 6123 6124 if (needs_update) 6125 (void)iwn_send_sensitivity(sc); 6126 6127 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 6128 6129 #undef dec 6130 #undef inc 6131 } 6132 6133 static int 6134 iwn_send_sensitivity(struct iwn_softc *sc) 6135 { 6136 struct iwn_calib_state *calib = &sc->calib; 6137 struct iwn_enhanced_sensitivity_cmd cmd; 6138 int len; 6139 6140 memset(&cmd, 0, sizeof cmd); 6141 len = sizeof (struct iwn_sensitivity_cmd); 6142 cmd.which = IWN_SENSITIVITY_WORKTBL; 6143 /* OFDM modulation. */ 6144 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1); 6145 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1); 6146 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4); 6147 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4); 6148 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm); 6149 cmd.energy_ofdm_th = htole16(62); 6150 /* CCK modulation. */ 6151 cmd.corr_cck_x4 = htole16(calib->cck_x4); 6152 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4); 6153 cmd.energy_cck = htole16(calib->energy_cck); 6154 /* Barker modulation: use default values. */