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: stable/12/sys/dev/iwn/if_iwn.c 345634 2019-03-28 09:16:00Z avos $"); 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 void iwn4965_attach(struct iwn_softc *, uint16_t); 135 static void 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 iwn_check_tx_ring(struct iwn_softc *, int); 172 static void iwn5000_ict_reset(struct iwn_softc *); 173 static int iwn_read_eeprom(struct iwn_softc *, 174 uint8_t macaddr[IEEE80211_ADDR_LEN]); 175 static void iwn4965_read_eeprom(struct iwn_softc *); 176 #ifdef IWN_DEBUG 177 static void iwn4965_print_power_group(struct iwn_softc *, int); 178 #endif 179 static void iwn5000_read_eeprom(struct iwn_softc *); 180 static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *); 181 static void iwn_read_eeprom_band(struct iwn_softc *, int, int, int *, 182 struct ieee80211_channel[]); 183 static void iwn_read_eeprom_ht40(struct iwn_softc *, int, int, int *, 184 struct ieee80211_channel[]); 185 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t); 186 static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *, 187 struct ieee80211_channel *); 188 static void iwn_getradiocaps(struct ieee80211com *, int, int *, 189 struct ieee80211_channel[]); 190 static int iwn_setregdomain(struct ieee80211com *, 191 struct ieee80211_regdomain *, int, 192 struct ieee80211_channel[]); 193 static void iwn_read_eeprom_enhinfo(struct iwn_softc *); 194 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *, 195 const uint8_t mac[IEEE80211_ADDR_LEN]); 196 static void iwn_newassoc(struct ieee80211_node *, int); 197 static int iwn_media_change(struct ifnet *); 198 static int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); 199 static void iwn_calib_timeout(void *); 200 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *); 201 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *, 202 struct iwn_rx_data *); 203 static void iwn_agg_tx_complete(struct iwn_softc *, struct iwn_tx_ring *, 204 int, int, int); 205 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *); 206 static void iwn5000_rx_calib_results(struct iwn_softc *, 207 struct iwn_rx_desc *); 208 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *); 209 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 210 struct iwn_rx_data *); 211 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 212 struct iwn_rx_data *); 213 static void iwn_adj_ampdu_ptr(struct iwn_softc *, struct iwn_tx_ring *); 214 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, int, 215 uint8_t); 216 static int iwn_ampdu_check_bitmap(uint64_t, int, int); 217 static int iwn_ampdu_index_check(struct iwn_softc *, struct iwn_tx_ring *, 218 uint64_t, int, int); 219 static void iwn_ampdu_tx_done(struct iwn_softc *, int, int, int, void *); 220 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *); 221 static void iwn_notif_intr(struct iwn_softc *); 222 static void iwn_wakeup_intr(struct iwn_softc *); 223 static void iwn_rftoggle_task(void *, int); 224 static void iwn_fatal_intr(struct iwn_softc *); 225 static void iwn_intr(void *); 226 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t, 227 uint16_t); 228 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t, 229 uint16_t); 230 #ifdef notyet 231 static void iwn5000_reset_sched(struct iwn_softc *, int, int); 232 #endif 233 static int iwn_tx_data(struct iwn_softc *, struct mbuf *, 234 struct ieee80211_node *); 235 static int iwn_tx_data_raw(struct iwn_softc *, struct mbuf *, 236 struct ieee80211_node *, 237 const struct ieee80211_bpf_params *params); 238 static int iwn_tx_cmd(struct iwn_softc *, struct mbuf *, 239 struct ieee80211_node *, struct iwn_tx_ring *); 240 static void iwn_xmit_task(void *arg0, int pending); 241 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *, 242 const struct ieee80211_bpf_params *); 243 static int iwn_transmit(struct ieee80211com *, struct mbuf *); 244 static void iwn_scan_timeout(void *); 245 static void iwn_watchdog(void *); 246 static int iwn_ioctl(struct ieee80211com *, u_long , void *); 247 static void iwn_parent(struct ieee80211com *); 248 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 249 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *, 250 int); 251 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *, 252 int); 253 static int iwn_set_link_quality(struct iwn_softc *, 254 struct ieee80211_node *); 255 static int iwn_add_broadcast_node(struct iwn_softc *, int); 256 static int iwn_updateedca(struct ieee80211com *); 257 static void iwn_set_promisc(struct iwn_softc *); 258 static void iwn_update_promisc(struct ieee80211com *); 259 static void iwn_update_mcast(struct ieee80211com *); 260 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 261 static int iwn_set_critical_temp(struct iwn_softc *); 262 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *); 263 static void iwn4965_power_calibration(struct iwn_softc *, int); 264 static int iwn4965_set_txpower(struct iwn_softc *, int); 265 static int iwn5000_set_txpower(struct iwn_softc *, int); 266 static int iwn4965_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 267 static int iwn5000_get_rssi(struct iwn_softc *, struct iwn_rx_stat *); 268 static int iwn_get_noise(const struct iwn_rx_general_stats *); 269 static int iwn4965_get_temperature(struct iwn_softc *); 270 static int iwn5000_get_temperature(struct iwn_softc *); 271 static int iwn_init_sensitivity(struct iwn_softc *); 272 static void iwn_collect_noise(struct iwn_softc *, 273 const struct iwn_rx_general_stats *); 274 static int iwn4965_init_gains(struct iwn_softc *); 275 static int iwn5000_init_gains(struct iwn_softc *); 276 static int iwn4965_set_gains(struct iwn_softc *); 277 static int iwn5000_set_gains(struct iwn_softc *); 278 static void iwn_tune_sensitivity(struct iwn_softc *, 279 const struct iwn_rx_stats *); 280 static void iwn_save_stats_counters(struct iwn_softc *, 281 const struct iwn_stats *); 282 static int iwn_send_sensitivity(struct iwn_softc *); 283 static void iwn_check_rx_recovery(struct iwn_softc *, struct iwn_stats *); 284 static int iwn_set_pslevel(struct iwn_softc *, int, int, int); 285 static int iwn_send_btcoex(struct iwn_softc *); 286 static int iwn_send_advanced_btcoex(struct iwn_softc *); 287 static int iwn5000_runtime_calib(struct iwn_softc *); 288 static int iwn_check_bss_filter(struct iwn_softc *); 289 static int iwn4965_rxon_assoc(struct iwn_softc *, int); 290 static int iwn5000_rxon_assoc(struct iwn_softc *, int); 291 static int iwn_send_rxon(struct iwn_softc *, int, int); 292 static int iwn_config(struct iwn_softc *); 293 static int iwn_scan(struct iwn_softc *, struct ieee80211vap *, 294 struct ieee80211_scan_state *, struct ieee80211_channel *); 295 static int iwn_auth(struct iwn_softc *, struct ieee80211vap *vap); 296 static int iwn_run(struct iwn_softc *, struct ieee80211vap *vap); 297 static int iwn_ampdu_rx_start(struct ieee80211_node *, 298 struct ieee80211_rx_ampdu *, int, int, int); 299 static void iwn_ampdu_rx_stop(struct ieee80211_node *, 300 struct ieee80211_rx_ampdu *); 301 static int iwn_addba_request(struct ieee80211_node *, 302 struct ieee80211_tx_ampdu *, int, int, int); 303 static int iwn_addba_response(struct ieee80211_node *, 304 struct ieee80211_tx_ampdu *, int, int, int); 305 static int iwn_ampdu_tx_start(struct ieee80211com *, 306 struct ieee80211_node *, uint8_t); 307 static void iwn_ampdu_tx_stop(struct ieee80211_node *, 308 struct ieee80211_tx_ampdu *); 309 static void iwn4965_ampdu_tx_start(struct iwn_softc *, 310 struct ieee80211_node *, int, uint8_t, uint16_t); 311 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, int, 312 uint8_t, uint16_t); 313 static void iwn5000_ampdu_tx_start(struct iwn_softc *, 314 struct ieee80211_node *, int, uint8_t, uint16_t); 315 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, int, 316 uint8_t, uint16_t); 317 static int iwn5000_query_calibration(struct iwn_softc *); 318 static int iwn5000_send_calibration(struct iwn_softc *); 319 static int iwn5000_send_wimax_coex(struct iwn_softc *); 320 static int iwn5000_crystal_calib(struct iwn_softc *); 321 static int iwn5000_temp_offset_calib(struct iwn_softc *); 322 static int iwn5000_temp_offset_calibv2(struct iwn_softc *); 323 static int iwn4965_post_alive(struct iwn_softc *); 324 static int iwn5000_post_alive(struct iwn_softc *); 325 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *, 326 int); 327 static int iwn4965_load_firmware(struct iwn_softc *); 328 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t, 329 const uint8_t *, int); 330 static int iwn5000_load_firmware(struct iwn_softc *); 331 static int iwn_read_firmware_leg(struct iwn_softc *, 332 struct iwn_fw_info *); 333 static int iwn_read_firmware_tlv(struct iwn_softc *, 334 struct iwn_fw_info *, uint16_t); 335 static int iwn_read_firmware(struct iwn_softc *); 336 static void iwn_unload_firmware(struct iwn_softc *); 337 static int iwn_clock_wait(struct iwn_softc *); 338 static int iwn_apm_init(struct iwn_softc *); 339 static void iwn_apm_stop_master(struct iwn_softc *); 340 static void iwn_apm_stop(struct iwn_softc *); 341 static int iwn4965_nic_config(struct iwn_softc *); 342 static int iwn5000_nic_config(struct iwn_softc *); 343 static int iwn_hw_prepare(struct iwn_softc *); 344 static int iwn_hw_init(struct iwn_softc *); 345 static void iwn_hw_stop(struct iwn_softc *); 346 static void iwn_panicked(void *, int); 347 static int iwn_init_locked(struct iwn_softc *); 348 static int iwn_init(struct iwn_softc *); 349 static void iwn_stop_locked(struct iwn_softc *); 350 static void iwn_stop(struct iwn_softc *); 351 static void iwn_scan_start(struct ieee80211com *); 352 static void iwn_scan_end(struct ieee80211com *); 353 static void iwn_set_channel(struct ieee80211com *); 354 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); 355 static void iwn_scan_mindwell(struct ieee80211_scan_state *); 356 #ifdef IWN_DEBUG 357 static char *iwn_get_csr_string(int); 358 static void iwn_debug_register(struct iwn_softc *); 359 #endif 360 361 static device_method_t iwn_methods[] = { 362 /* Device interface */ 363 DEVMETHOD(device_probe, iwn_probe), 364 DEVMETHOD(device_attach, iwn_attach), 365 DEVMETHOD(device_detach, iwn_detach), 366 DEVMETHOD(device_shutdown, iwn_shutdown), 367 DEVMETHOD(device_suspend, iwn_suspend), 368 DEVMETHOD(device_resume, iwn_resume), 369 370 DEVMETHOD_END 371 }; 372 373 static driver_t iwn_driver = { 374 "iwn", 375 iwn_methods, 376 sizeof(struct iwn_softc) 377 }; 378 static devclass_t iwn_devclass; 379 380 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, NULL, NULL); 381 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, iwn, iwn_ident_table, 382 nitems(iwn_ident_table) - 1); 383 MODULE_VERSION(iwn, 1); 384 385 MODULE_DEPEND(iwn, firmware, 1, 1, 1); 386 MODULE_DEPEND(iwn, pci, 1, 1, 1); 387 MODULE_DEPEND(iwn, wlan, 1, 1, 1); 388 389 static d_ioctl_t iwn_cdev_ioctl; 390 static d_open_t iwn_cdev_open; 391 static d_close_t iwn_cdev_close; 392 393 static struct cdevsw iwn_cdevsw = { 394 .d_version = D_VERSION, 395 .d_flags = 0, 396 .d_open = iwn_cdev_open, 397 .d_close = iwn_cdev_close, 398 .d_ioctl = iwn_cdev_ioctl, 399 .d_name = "iwn", 400 }; 401 402 static int 403 iwn_probe(device_t dev) 404 { 405 const struct iwn_ident *ident; 406 407 for (ident = iwn_ident_table; ident->name != NULL; ident++) { 408 if (pci_get_vendor(dev) == ident->vendor && 409 pci_get_device(dev) == ident->device) { 410 device_set_desc(dev, ident->name); 411 return (BUS_PROBE_DEFAULT); 412 } 413 } 414 return ENXIO; 415 } 416 417 static int 418 iwn_is_3stream_device(struct iwn_softc *sc) 419 { 420 /* XXX for now only 5300, until the 5350 can be tested */ 421 if (sc->hw_type == IWN_HW_REV_TYPE_5300) 422 return (1); 423 return (0); 424 } 425 426 static int 427 iwn_attach(device_t dev) 428 { 429 struct iwn_softc *sc = device_get_softc(dev); 430 struct ieee80211com *ic; 431 int i, error, rid; 432 433 sc->sc_dev = dev; 434 435 #ifdef IWN_DEBUG 436 error = resource_int_value(device_get_name(sc->sc_dev), 437 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug)); 438 if (error != 0) 439 sc->sc_debug = 0; 440 #else 441 sc->sc_debug = 0; 442 #endif 443 444 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: begin\n",__func__); 445 446 /* 447 * Get the offset of the PCI Express Capability Structure in PCI 448 * Configuration Space. 449 */ 450 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off); 451 if (error != 0) { 452 device_printf(dev, "PCIe capability structure not found!\n"); 453 return error; 454 } 455 456 /* Clear device-specific "PCI retry timeout" register (41h). */ 457 pci_write_config(dev, 0x41, 0, 1); 458 459 /* Enable bus-mastering. */ 460 pci_enable_busmaster(dev); 461 462 rid = PCIR_BAR(0); 463 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 464 RF_ACTIVE); 465 if (sc->mem == NULL) { 466 device_printf(dev, "can't map mem space\n"); 467 error = ENOMEM; 468 return error; 469 } 470 sc->sc_st = rman_get_bustag(sc->mem); 471 sc->sc_sh = rman_get_bushandle(sc->mem); 472 473 i = 1; 474 rid = 0; 475 if (pci_alloc_msi(dev, &i) == 0) 476 rid = 1; 477 /* Install interrupt handler. */ 478 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | 479 (rid != 0 ? 0 : RF_SHAREABLE)); 480 if (sc->irq == NULL) { 481 device_printf(dev, "can't map interrupt\n"); 482 error = ENOMEM; 483 goto fail; 484 } 485 486 IWN_LOCK_INIT(sc); 487 488 /* Read hardware revision and attach. */ 489 sc->hw_type = (IWN_READ(sc, IWN_HW_REV) >> IWN_HW_REV_TYPE_SHIFT) 490 & IWN_HW_REV_TYPE_MASK; 491 sc->subdevice_id = pci_get_subdevice(dev); 492 493 /* 494 * 4965 versus 5000 and later have different methods. 495 * Let's set those up first. 496 */ 497 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 498 iwn4965_attach(sc, pci_get_device(dev)); 499 else 500 iwn5000_attach(sc, pci_get_device(dev)); 501 502 /* 503 * Next, let's setup the various parameters of each NIC. 504 */ 505 error = iwn_config_specific(sc, pci_get_device(dev)); 506 if (error != 0) { 507 device_printf(dev, "could not attach device, error %d\n", 508 error); 509 goto fail; 510 } 511 512 if ((error = iwn_hw_prepare(sc)) != 0) { 513 device_printf(dev, "hardware not ready, error %d\n", error); 514 goto fail; 515 } 516 517 /* Allocate DMA memory for firmware transfers. */ 518 if ((error = iwn_alloc_fwmem(sc)) != 0) { 519 device_printf(dev, 520 "could not allocate memory for firmware, error %d\n", 521 error); 522 goto fail; 523 } 524 525 /* Allocate "Keep Warm" page. */ 526 if ((error = iwn_alloc_kw(sc)) != 0) { 527 device_printf(dev, 528 "could not allocate keep warm page, error %d\n", error); 529 goto fail; 530 } 531 532 /* Allocate ICT table for 5000 Series. */ 533 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 534 (error = iwn_alloc_ict(sc)) != 0) { 535 device_printf(dev, "could not allocate ICT table, error %d\n", 536 error); 537 goto fail; 538 } 539 540 /* Allocate TX scheduler "rings". */ 541 if ((error = iwn_alloc_sched(sc)) != 0) { 542 device_printf(dev, 543 "could not allocate TX scheduler rings, error %d\n", error); 544 goto fail; 545 } 546 547 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */ 548 for (i = 0; i < sc->ntxqs; i++) { 549 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 550 device_printf(dev, 551 "could not allocate TX ring %d, error %d\n", i, 552 error); 553 goto fail; 554 } 555 } 556 557 /* Allocate RX ring. */ 558 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) { 559 device_printf(dev, "could not allocate RX ring, error %d\n", 560 error); 561 goto fail; 562 } 563 564 /* Clear pending interrupts. */ 565 IWN_WRITE(sc, IWN_INT, 0xffffffff); 566 567 ic = &sc->sc_ic; 568 ic->ic_softc = sc; 569 ic->ic_name = device_get_nameunit(dev); 570 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 571 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 572 573 /* Set device capabilities. */ 574 ic->ic_caps = 575 IEEE80211_C_STA /* station mode supported */ 576 | IEEE80211_C_MONITOR /* monitor mode supported */ 577 #if 0 578 | IEEE80211_C_BGSCAN /* background scanning */ 579 #endif 580 | IEEE80211_C_TXPMGT /* tx power management */ 581 | IEEE80211_C_SHSLOT /* short slot time supported */ 582 | IEEE80211_C_WPA 583 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 584 #if 0 585 | IEEE80211_C_IBSS /* ibss/adhoc mode */ 586 #endif 587 | IEEE80211_C_WME /* WME */ 588 | IEEE80211_C_PMGT /* Station-side power mgmt */ 589 ; 590 591 /* Read MAC address, channels, etc from EEPROM. */ 592 if ((error = iwn_read_eeprom(sc, ic->ic_macaddr)) != 0) { 593 device_printf(dev, "could not read EEPROM, error %d\n", 594 error); 595 goto fail; 596 } 597 598 /* Count the number of available chains. */ 599 sc->ntxchains = 600 ((sc->txchainmask >> 2) & 1) + 601 ((sc->txchainmask >> 1) & 1) + 602 ((sc->txchainmask >> 0) & 1); 603 sc->nrxchains = 604 ((sc->rxchainmask >> 2) & 1) + 605 ((sc->rxchainmask >> 1) & 1) + 606 ((sc->rxchainmask >> 0) & 1); 607 if (bootverbose) { 608 device_printf(dev, "MIMO %dT%dR, %.4s, address %6D\n", 609 sc->ntxchains, sc->nrxchains, sc->eeprom_domain, 610 ic->ic_macaddr, ":"); 611 } 612 613 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 614 ic->ic_rxstream = sc->nrxchains; 615 ic->ic_txstream = sc->ntxchains; 616 617 /* 618 * Some of the 3 antenna devices (ie, the 4965) only supports 619 * 2x2 operation. So correct the number of streams if 620 * it's not a 3-stream device. 621 */ 622 if (! iwn_is_3stream_device(sc)) { 623 if (ic->ic_rxstream > 2) 624 ic->ic_rxstream = 2; 625 if (ic->ic_txstream > 2) 626 ic->ic_txstream = 2; 627 } 628 629 ic->ic_htcaps = 630 IEEE80211_HTCAP_SMPS_OFF /* SMPS mode disabled */ 631 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 632 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width*/ 633 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 634 #ifdef notyet 635 | IEEE80211_HTCAP_GREENFIELD 636 #if IWN_RBUF_SIZE == 8192 637 | IEEE80211_HTCAP_MAXAMSDU_7935 /* max A-MSDU length */ 638 #else 639 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 640 #endif 641 #endif 642 /* s/w capabilities */ 643 | IEEE80211_HTC_HT /* HT operation */ 644 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 645 #ifdef notyet 646 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 647 #endif 648 ; 649 } 650 651 ieee80211_ifattach(ic); 652 ic->ic_vap_create = iwn_vap_create; 653 ic->ic_ioctl = iwn_ioctl; 654 ic->ic_parent = iwn_parent; 655 ic->ic_vap_delete = iwn_vap_delete; 656 ic->ic_transmit = iwn_transmit; 657 ic->ic_raw_xmit = iwn_raw_xmit; 658 ic->ic_node_alloc = iwn_node_alloc; 659 sc->sc_ampdu_rx_start = ic->ic_ampdu_rx_start; 660 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start; 661 sc->sc_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 662 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop; 663 sc->sc_addba_request = ic->ic_addba_request; 664 ic->ic_addba_request = iwn_addba_request; 665 sc->sc_addba_response = ic->ic_addba_response; 666 ic->ic_addba_response = iwn_addba_response; 667 sc->sc_addba_stop = ic->ic_addba_stop; 668 ic->ic_addba_stop = iwn_ampdu_tx_stop; 669 ic->ic_newassoc = iwn_newassoc; 670 ic->ic_wme.wme_update = iwn_updateedca; 671 ic->ic_update_promisc = iwn_update_promisc; 672 ic->ic_update_mcast = iwn_update_mcast; 673 ic->ic_scan_start = iwn_scan_start; 674 ic->ic_scan_end = iwn_scan_end; 675 ic->ic_set_channel = iwn_set_channel; 676 ic->ic_scan_curchan = iwn_scan_curchan; 677 ic->ic_scan_mindwell = iwn_scan_mindwell; 678 ic->ic_getradiocaps = iwn_getradiocaps; 679 ic->ic_setregdomain = iwn_setregdomain; 680 681 iwn_radiotap_attach(sc); 682 683 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0); 684 callout_init_mtx(&sc->scan_timeout, &sc->sc_mtx, 0); 685 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0); 686 TASK_INIT(&sc->sc_rftoggle_task, 0, iwn_rftoggle_task, sc); 687 TASK_INIT(&sc->sc_panic_task, 0, iwn_panicked, sc); 688 TASK_INIT(&sc->sc_xmit_task, 0, iwn_xmit_task, sc); 689 690 mbufq_init(&sc->sc_xmit_queue, 1024); 691 692 sc->sc_tq = taskqueue_create("iwn_taskq", M_WAITOK, 693 taskqueue_thread_enqueue, &sc->sc_tq); 694 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "iwn_taskq"); 695 if (error != 0) { 696 device_printf(dev, "can't start threads, error %d\n", error); 697 goto fail; 698 } 699 700 iwn_sysctlattach(sc); 701 702 /* 703 * Hook our interrupt after all initialization is complete. 704 */ 705 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 706 NULL, iwn_intr, sc, &sc->sc_ih); 707 if (error != 0) { 708 device_printf(dev, "can't establish interrupt, error %d\n", 709 error); 710 goto fail; 711 } 712 713 #if 0 714 device_printf(sc->sc_dev, "%s: rx_stats=%d, rx_stats_bt=%d\n", 715 __func__, 716 sizeof(struct iwn_stats), 717 sizeof(struct iwn_stats_bt)); 718 #endif 719 720 if (bootverbose) 721 ieee80211_announce(ic); 722 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 723 724 /* Add debug ioctl right at the end */ 725 sc->sc_cdev = make_dev(&iwn_cdevsw, device_get_unit(dev), 726 UID_ROOT, GID_WHEEL, 0600, "%s", device_get_nameunit(dev)); 727 if (sc->sc_cdev == NULL) { 728 device_printf(dev, "failed to create debug character device\n"); 729 } else { 730 sc->sc_cdev->si_drv1 = sc; 731 } 732 return 0; 733 fail: 734 iwn_detach(dev); 735 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end in error\n",__func__); 736 return error; 737 } 738 739 /* 740 * Define specific configuration based on device id and subdevice id 741 * pid : PCI device id 742 */ 743 static int 744 iwn_config_specific(struct iwn_softc *sc, uint16_t pid) 745 { 746 747 switch (pid) { 748 /* 4965 series */ 749 case IWN_DID_4965_1: 750 case IWN_DID_4965_2: 751 case IWN_DID_4965_3: 752 case IWN_DID_4965_4: 753 sc->base_params = &iwn4965_base_params; 754 sc->limits = &iwn4965_sensitivity_limits; 755 sc->fwname = "iwn4965fw"; 756 /* Override chains masks, ROM is known to be broken. */ 757 sc->txchainmask = IWN_ANT_AB; 758 sc->rxchainmask = IWN_ANT_ABC; 759 /* Enable normal btcoex */ 760 sc->sc_flags |= IWN_FLAG_BTCOEX; 761 break; 762 /* 1000 Series */ 763 case IWN_DID_1000_1: 764 case IWN_DID_1000_2: 765 switch(sc->subdevice_id) { 766 case IWN_SDID_1000_1: 767 case IWN_SDID_1000_2: 768 case IWN_SDID_1000_3: 769 case IWN_SDID_1000_4: 770 case IWN_SDID_1000_5: 771 case IWN_SDID_1000_6: 772 case IWN_SDID_1000_7: 773 case IWN_SDID_1000_8: 774 case IWN_SDID_1000_9: 775 case IWN_SDID_1000_10: 776 case IWN_SDID_1000_11: 777 case IWN_SDID_1000_12: 778 sc->limits = &iwn1000_sensitivity_limits; 779 sc->base_params = &iwn1000_base_params; 780 sc->fwname = "iwn1000fw"; 781 break; 782 default: 783 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 784 "0x%04x rev %d not supported (subdevice)\n", pid, 785 sc->subdevice_id,sc->hw_type); 786 return ENOTSUP; 787 } 788 break; 789 /* 6x00 Series */ 790 case IWN_DID_6x00_2: 791 case IWN_DID_6x00_4: 792 case IWN_DID_6x00_1: 793 case IWN_DID_6x00_3: 794 sc->fwname = "iwn6000fw"; 795 sc->limits = &iwn6000_sensitivity_limits; 796 switch(sc->subdevice_id) { 797 case IWN_SDID_6x00_1: 798 case IWN_SDID_6x00_2: 799 case IWN_SDID_6x00_8: 800 //iwl6000_3agn_cfg 801 sc->base_params = &iwn_6000_base_params; 802 break; 803 case IWN_SDID_6x00_3: 804 case IWN_SDID_6x00_6: 805 case IWN_SDID_6x00_9: 806 ////iwl6000i_2agn 807 case IWN_SDID_6x00_4: 808 case IWN_SDID_6x00_7: 809 case IWN_SDID_6x00_10: 810 //iwl6000i_2abg_cfg 811 case IWN_SDID_6x00_5: 812 //iwl6000i_2bg_cfg 813 sc->base_params = &iwn_6000i_base_params; 814 sc->sc_flags |= IWN_FLAG_INTERNAL_PA; 815 sc->txchainmask = IWN_ANT_BC; 816 sc->rxchainmask = IWN_ANT_BC; 817 break; 818 default: 819 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 820 "0x%04x rev %d not supported (subdevice)\n", pid, 821 sc->subdevice_id,sc->hw_type); 822 return ENOTSUP; 823 } 824 break; 825 /* 6x05 Series */ 826 case IWN_DID_6x05_1: 827 case IWN_DID_6x05_2: 828 switch(sc->subdevice_id) { 829 case IWN_SDID_6x05_1: 830 case IWN_SDID_6x05_4: 831 case IWN_SDID_6x05_6: 832 //iwl6005_2agn_cfg 833 case IWN_SDID_6x05_2: 834 case IWN_SDID_6x05_5: 835 case IWN_SDID_6x05_7: 836 //iwl6005_2abg_cfg 837 case IWN_SDID_6x05_3: 838 //iwl6005_2bg_cfg 839 case IWN_SDID_6x05_8: 840 case IWN_SDID_6x05_9: 841 //iwl6005_2agn_sff_cfg 842 case IWN_SDID_6x05_10: 843 //iwl6005_2agn_d_cfg 844 case IWN_SDID_6x05_11: 845 //iwl6005_2agn_mow1_cfg 846 case IWN_SDID_6x05_12: 847 //iwl6005_2agn_mow2_cfg 848 sc->fwname = "iwn6000g2afw"; 849 sc->limits = &iwn6000_sensitivity_limits; 850 sc->base_params = &iwn_6000g2_base_params; 851 break; 852 default: 853 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 854 "0x%04x rev %d not supported (subdevice)\n", pid, 855 sc->subdevice_id,sc->hw_type); 856 return ENOTSUP; 857 } 858 break; 859 /* 6x35 Series */ 860 case IWN_DID_6035_1: 861 case IWN_DID_6035_2: 862 switch(sc->subdevice_id) { 863 case IWN_SDID_6035_1: 864 case IWN_SDID_6035_2: 865 case IWN_SDID_6035_3: 866 case IWN_SDID_6035_4: 867 case IWN_SDID_6035_5: 868 sc->fwname = "iwn6000g2bfw"; 869 sc->limits = &iwn6235_sensitivity_limits; 870 sc->base_params = &iwn_6235_base_params; 871 break; 872 default: 873 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 874 "0x%04x rev %d not supported (subdevice)\n", pid, 875 sc->subdevice_id,sc->hw_type); 876 return ENOTSUP; 877 } 878 break; 879 /* 6x50 WiFi/WiMax Series */ 880 case IWN_DID_6050_1: 881 case IWN_DID_6050_2: 882 switch(sc->subdevice_id) { 883 case IWN_SDID_6050_1: 884 case IWN_SDID_6050_3: 885 case IWN_SDID_6050_5: 886 //iwl6050_2agn_cfg 887 case IWN_SDID_6050_2: 888 case IWN_SDID_6050_4: 889 case IWN_SDID_6050_6: 890 //iwl6050_2abg_cfg 891 sc->fwname = "iwn6050fw"; 892 sc->txchainmask = IWN_ANT_AB; 893 sc->rxchainmask = IWN_ANT_AB; 894 sc->limits = &iwn6000_sensitivity_limits; 895 sc->base_params = &iwn_6050_base_params; 896 break; 897 default: 898 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 899 "0x%04x rev %d not supported (subdevice)\n", pid, 900 sc->subdevice_id,sc->hw_type); 901 return ENOTSUP; 902 } 903 break; 904 /* 6150 WiFi/WiMax Series */ 905 case IWN_DID_6150_1: 906 case IWN_DID_6150_2: 907 switch(sc->subdevice_id) { 908 case IWN_SDID_6150_1: 909 case IWN_SDID_6150_3: 910 case IWN_SDID_6150_5: 911 // iwl6150_bgn_cfg 912 case IWN_SDID_6150_2: 913 case IWN_SDID_6150_4: 914 case IWN_SDID_6150_6: 915 //iwl6150_bg_cfg 916 sc->fwname = "iwn6050fw"; 917 sc->limits = &iwn6000_sensitivity_limits; 918 sc->base_params = &iwn_6150_base_params; 919 break; 920 default: 921 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 922 "0x%04x rev %d not supported (subdevice)\n", pid, 923 sc->subdevice_id,sc->hw_type); 924 return ENOTSUP; 925 } 926 break; 927 /* 6030 Series and 1030 Series */ 928 case IWN_DID_x030_1: 929 case IWN_DID_x030_2: 930 case IWN_DID_x030_3: 931 case IWN_DID_x030_4: 932 switch(sc->subdevice_id) { 933 case IWN_SDID_x030_1: 934 case IWN_SDID_x030_3: 935 case IWN_SDID_x030_5: 936 // iwl1030_bgn_cfg 937 case IWN_SDID_x030_2: 938 case IWN_SDID_x030_4: 939 case IWN_SDID_x030_6: 940 //iwl1030_bg_cfg 941 case IWN_SDID_x030_7: 942 case IWN_SDID_x030_10: 943 case IWN_SDID_x030_14: 944 //iwl6030_2agn_cfg 945 case IWN_SDID_x030_8: 946 case IWN_SDID_x030_11: 947 case IWN_SDID_x030_15: 948 // iwl6030_2bgn_cfg 949 case IWN_SDID_x030_9: 950 case IWN_SDID_x030_12: 951 case IWN_SDID_x030_16: 952 // iwl6030_2abg_cfg 953 case IWN_SDID_x030_13: 954 //iwl6030_2bg_cfg 955 sc->fwname = "iwn6000g2bfw"; 956 sc->limits = &iwn6000_sensitivity_limits; 957 sc->base_params = &iwn_6000g2b_base_params; 958 break; 959 default: 960 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 961 "0x%04x rev %d not supported (subdevice)\n", pid, 962 sc->subdevice_id,sc->hw_type); 963 return ENOTSUP; 964 } 965 break; 966 /* 130 Series WiFi */ 967 /* XXX: This series will need adjustment for rate. 968 * see rx_with_siso_diversity in linux kernel 969 */ 970 case IWN_DID_130_1: 971 case IWN_DID_130_2: 972 switch(sc->subdevice_id) { 973 case IWN_SDID_130_1: 974 case IWN_SDID_130_3: 975 case IWN_SDID_130_5: 976 //iwl130_bgn_cfg 977 case IWN_SDID_130_2: 978 case IWN_SDID_130_4: 979 case IWN_SDID_130_6: 980 //iwl130_bg_cfg 981 sc->fwname = "iwn6000g2bfw"; 982 sc->limits = &iwn6000_sensitivity_limits; 983 sc->base_params = &iwn_6000g2b_base_params; 984 break; 985 default: 986 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 987 "0x%04x rev %d not supported (subdevice)\n", pid, 988 sc->subdevice_id,sc->hw_type); 989 return ENOTSUP; 990 } 991 break; 992 /* 100 Series WiFi */ 993 case IWN_DID_100_1: 994 case IWN_DID_100_2: 995 switch(sc->subdevice_id) { 996 case IWN_SDID_100_1: 997 case IWN_SDID_100_2: 998 case IWN_SDID_100_3: 999 case IWN_SDID_100_4: 1000 case IWN_SDID_100_5: 1001 case IWN_SDID_100_6: 1002 sc->limits = &iwn1000_sensitivity_limits; 1003 sc->base_params = &iwn1000_base_params; 1004 sc->fwname = "iwn100fw"; 1005 break; 1006 default: 1007 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1008 "0x%04x rev %d not supported (subdevice)\n", pid, 1009 sc->subdevice_id,sc->hw_type); 1010 return ENOTSUP; 1011 } 1012 break; 1013 1014 /* 105 Series */ 1015 /* XXX: This series will need adjustment for rate. 1016 * see rx_with_siso_diversity in linux kernel 1017 */ 1018 case IWN_DID_105_1: 1019 case IWN_DID_105_2: 1020 switch(sc->subdevice_id) { 1021 case IWN_SDID_105_1: 1022 case IWN_SDID_105_2: 1023 case IWN_SDID_105_3: 1024 //iwl105_bgn_cfg 1025 case IWN_SDID_105_4: 1026 //iwl105_bgn_d_cfg 1027 sc->limits = &iwn2030_sensitivity_limits; 1028 sc->base_params = &iwn2000_base_params; 1029 sc->fwname = "iwn105fw"; 1030 break; 1031 default: 1032 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1033 "0x%04x rev %d not supported (subdevice)\n", pid, 1034 sc->subdevice_id,sc->hw_type); 1035 return ENOTSUP; 1036 } 1037 break; 1038 1039 /* 135 Series */ 1040 /* XXX: This series will need adjustment for rate. 1041 * see rx_with_siso_diversity in linux kernel 1042 */ 1043 case IWN_DID_135_1: 1044 case IWN_DID_135_2: 1045 switch(sc->subdevice_id) { 1046 case IWN_SDID_135_1: 1047 case IWN_SDID_135_2: 1048 case IWN_SDID_135_3: 1049 sc->limits = &iwn2030_sensitivity_limits; 1050 sc->base_params = &iwn2030_base_params; 1051 sc->fwname = "iwn135fw"; 1052 break; 1053 default: 1054 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1055 "0x%04x rev %d not supported (subdevice)\n", pid, 1056 sc->subdevice_id,sc->hw_type); 1057 return ENOTSUP; 1058 } 1059 break; 1060 1061 /* 2x00 Series */ 1062 case IWN_DID_2x00_1: 1063 case IWN_DID_2x00_2: 1064 switch(sc->subdevice_id) { 1065 case IWN_SDID_2x00_1: 1066 case IWN_SDID_2x00_2: 1067 case IWN_SDID_2x00_3: 1068 //iwl2000_2bgn_cfg 1069 case IWN_SDID_2x00_4: 1070 //iwl2000_2bgn_d_cfg 1071 sc->limits = &iwn2030_sensitivity_limits; 1072 sc->base_params = &iwn2000_base_params; 1073 sc->fwname = "iwn2000fw"; 1074 break; 1075 default: 1076 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1077 "0x%04x rev %d not supported (subdevice) \n", 1078 pid, sc->subdevice_id, sc->hw_type); 1079 return ENOTSUP; 1080 } 1081 break; 1082 /* 2x30 Series */ 1083 case IWN_DID_2x30_1: 1084 case IWN_DID_2x30_2: 1085 switch(sc->subdevice_id) { 1086 case IWN_SDID_2x30_1: 1087 case IWN_SDID_2x30_3: 1088 case IWN_SDID_2x30_5: 1089 //iwl100_bgn_cfg 1090 case IWN_SDID_2x30_2: 1091 case IWN_SDID_2x30_4: 1092 case IWN_SDID_2x30_6: 1093 //iwl100_bg_cfg 1094 sc->limits = &iwn2030_sensitivity_limits; 1095 sc->base_params = &iwn2030_base_params; 1096 sc->fwname = "iwn2030fw"; 1097 break; 1098 default: 1099 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1100 "0x%04x rev %d not supported (subdevice)\n", pid, 1101 sc->subdevice_id,sc->hw_type); 1102 return ENOTSUP; 1103 } 1104 break; 1105 /* 5x00 Series */ 1106 case IWN_DID_5x00_1: 1107 case IWN_DID_5x00_2: 1108 case IWN_DID_5x00_3: 1109 case IWN_DID_5x00_4: 1110 sc->limits = &iwn5000_sensitivity_limits; 1111 sc->base_params = &iwn5000_base_params; 1112 sc->fwname = "iwn5000fw"; 1113 switch(sc->subdevice_id) { 1114 case IWN_SDID_5x00_1: 1115 case IWN_SDID_5x00_2: 1116 case IWN_SDID_5x00_3: 1117 case IWN_SDID_5x00_4: 1118 case IWN_SDID_5x00_9: 1119 case IWN_SDID_5x00_10: 1120 case IWN_SDID_5x00_11: 1121 case IWN_SDID_5x00_12: 1122 case IWN_SDID_5x00_17: 1123 case IWN_SDID_5x00_18: 1124 case IWN_SDID_5x00_19: 1125 case IWN_SDID_5x00_20: 1126 //iwl5100_agn_cfg 1127 sc->txchainmask = IWN_ANT_B; 1128 sc->rxchainmask = IWN_ANT_AB; 1129 break; 1130 case IWN_SDID_5x00_5: 1131 case IWN_SDID_5x00_6: 1132 case IWN_SDID_5x00_13: 1133 case IWN_SDID_5x00_14: 1134 case IWN_SDID_5x00_21: 1135 case IWN_SDID_5x00_22: 1136 //iwl5100_bgn_cfg 1137 sc->txchainmask = IWN_ANT_B; 1138 sc->rxchainmask = IWN_ANT_AB; 1139 break; 1140 case IWN_SDID_5x00_7: 1141 case IWN_SDID_5x00_8: 1142 case IWN_SDID_5x00_15: 1143 case IWN_SDID_5x00_16: 1144 case IWN_SDID_5x00_23: 1145 case IWN_SDID_5x00_24: 1146 //iwl5100_abg_cfg 1147 sc->txchainmask = IWN_ANT_B; 1148 sc->rxchainmask = IWN_ANT_AB; 1149 break; 1150 case IWN_SDID_5x00_25: 1151 case IWN_SDID_5x00_26: 1152 case IWN_SDID_5x00_27: 1153 case IWN_SDID_5x00_28: 1154 case IWN_SDID_5x00_29: 1155 case IWN_SDID_5x00_30: 1156 case IWN_SDID_5x00_31: 1157 case IWN_SDID_5x00_32: 1158 case IWN_SDID_5x00_33: 1159 case IWN_SDID_5x00_34: 1160 case IWN_SDID_5x00_35: 1161 case IWN_SDID_5x00_36: 1162 //iwl5300_agn_cfg 1163 sc->txchainmask = IWN_ANT_ABC; 1164 sc->rxchainmask = IWN_ANT_ABC; 1165 break; 1166 default: 1167 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1168 "0x%04x rev %d not supported (subdevice)\n", pid, 1169 sc->subdevice_id,sc->hw_type); 1170 return ENOTSUP; 1171 } 1172 break; 1173 /* 5x50 Series */ 1174 case IWN_DID_5x50_1: 1175 case IWN_DID_5x50_2: 1176 case IWN_DID_5x50_3: 1177 case IWN_DID_5x50_4: 1178 sc->limits = &iwn5000_sensitivity_limits; 1179 sc->base_params = &iwn5000_base_params; 1180 sc->fwname = "iwn5000fw"; 1181 switch(sc->subdevice_id) { 1182 case IWN_SDID_5x50_1: 1183 case IWN_SDID_5x50_2: 1184 case IWN_SDID_5x50_3: 1185 //iwl5350_agn_cfg 1186 sc->limits = &iwn5000_sensitivity_limits; 1187 sc->base_params = &iwn5000_base_params; 1188 sc->fwname = "iwn5000fw"; 1189 break; 1190 case IWN_SDID_5x50_4: 1191 case IWN_SDID_5x50_5: 1192 case IWN_SDID_5x50_8: 1193 case IWN_SDID_5x50_9: 1194 case IWN_SDID_5x50_10: 1195 case IWN_SDID_5x50_11: 1196 //iwl5150_agn_cfg 1197 case IWN_SDID_5x50_6: 1198 case IWN_SDID_5x50_7: 1199 case IWN_SDID_5x50_12: 1200 case IWN_SDID_5x50_13: 1201 //iwl5150_abg_cfg 1202 sc->limits = &iwn5000_sensitivity_limits; 1203 sc->fwname = "iwn5150fw"; 1204 sc->base_params = &iwn_5x50_base_params; 1205 break; 1206 default: 1207 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id :" 1208 "0x%04x rev %d not supported (subdevice)\n", pid, 1209 sc->subdevice_id,sc->hw_type); 1210 return ENOTSUP; 1211 } 1212 break; 1213 default: 1214 device_printf(sc->sc_dev, "adapter type id : 0x%04x sub id : 0x%04x" 1215 "rev 0x%08x not supported (device)\n", pid, sc->subdevice_id, 1216 sc->hw_type); 1217 return ENOTSUP; 1218 } 1219 return 0; 1220 } 1221 1222 static void 1223 iwn4965_attach(struct iwn_softc *sc, uint16_t pid) 1224 { 1225 struct iwn_ops *ops = &sc->ops; 1226 1227 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 1228 1229 ops->load_firmware = iwn4965_load_firmware; 1230 ops->read_eeprom = iwn4965_read_eeprom; 1231 ops->post_alive = iwn4965_post_alive; 1232 ops->nic_config = iwn4965_nic_config; 1233 ops->update_sched = iwn4965_update_sched; 1234 ops->get_temperature = iwn4965_get_temperature; 1235 ops->get_rssi = iwn4965_get_rssi; 1236 ops->set_txpower = iwn4965_set_txpower; 1237 ops->init_gains = iwn4965_init_gains; 1238 ops->set_gains = iwn4965_set_gains; 1239 ops->rxon_assoc = iwn4965_rxon_assoc; 1240 ops->add_node = iwn4965_add_node; 1241 ops->tx_done = iwn4965_tx_done; 1242 ops->ampdu_tx_start = iwn4965_ampdu_tx_start; 1243 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop; 1244 sc->ntxqs = IWN4965_NTXQUEUES; 1245 sc->firstaggqueue = IWN4965_FIRSTAGGQUEUE; 1246 sc->ndmachnls = IWN4965_NDMACHNLS; 1247 sc->broadcast_id = IWN4965_ID_BROADCAST; 1248 sc->rxonsz = IWN4965_RXONSZ; 1249 sc->schedsz = IWN4965_SCHEDSZ; 1250 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ; 1251 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ; 1252 sc->fwsz = IWN4965_FWSZ; 1253 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT; 1254 sc->limits = &iwn4965_sensitivity_limits; 1255 sc->fwname = "iwn4965fw"; 1256 /* Override chains masks, ROM is known to be broken. */ 1257 sc->txchainmask = IWN_ANT_AB; 1258 sc->rxchainmask = IWN_ANT_ABC; 1259 /* Enable normal btcoex */ 1260 sc->sc_flags |= IWN_FLAG_BTCOEX; 1261 1262 DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__); 1263 } 1264 1265 static void 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 DPRINTF(sc, IWN_DEBUG_TRACE, "%s: end\n",__func__); 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 data->remapped = 0; 2079 data->long_retries = 0; 2080 } 2081 /* Clear TX descriptors. */ 2082 memset(ring->desc, 0, ring->desc_dma.size); 2083 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2084 BUS_DMASYNC_PREWRITE); 2085 sc->qfullmsk &= ~(1 << ring->qid); 2086 ring->queued = 0; 2087 ring->cur = 0; 2088 } 2089 2090 static void 2091 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 2092 { 2093 int i; 2094 2095 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s \n", __func__); 2096 2097 iwn_dma_contig_free(&ring->desc_dma); 2098 iwn_dma_contig_free(&ring->cmd_dma); 2099 2100 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 2101 struct iwn_tx_data *data = &ring->data[i]; 2102 2103 if (data->m != NULL) { 2104 bus_dmamap_sync(ring->data_dmat, data->map, 2105 BUS_DMASYNC_POSTWRITE); 2106 bus_dmamap_unload(ring->data_dmat, data->map); 2107 m_freem(data->m); 2108 } 2109 if (data->map != NULL) 2110 bus_dmamap_destroy(ring->data_dmat, data->map); 2111 } 2112 if (ring->data_dmat != NULL) { 2113 bus_dma_tag_destroy(ring->data_dmat); 2114 ring->data_dmat = NULL; 2115 } 2116 } 2117 2118 static void 2119 iwn_check_tx_ring(struct iwn_softc *sc, int qid) 2120 { 2121 struct iwn_tx_ring *ring = &sc->txq[qid]; 2122 2123 KASSERT(ring->queued >= 0, ("%s: ring->queued (%d) for queue %d < 0!", 2124 __func__, ring->queued, qid)); 2125 2126 if (qid >= sc->firstaggqueue) { 2127 struct iwn_ops *ops = &sc->ops; 2128 struct ieee80211_tx_ampdu *tap = sc->qid2tap[qid]; 2129 2130 if (ring->queued == 0 && !IEEE80211_AMPDU_RUNNING(tap)) { 2131 uint16_t ssn = tap->txa_start & 0xfff; 2132 uint8_t tid = tap->txa_tid; 2133 int *res = tap->txa_private; 2134 2135 iwn_nic_lock(sc); 2136 ops->ampdu_tx_stop(sc, qid, tid, ssn); 2137 iwn_nic_unlock(sc); 2138 2139 sc->qid2tap[qid] = NULL; 2140 free(res, M_DEVBUF); 2141 } 2142 } 2143 2144 if (ring->queued < IWN_TX_RING_LOMARK) { 2145 sc->qfullmsk &= ~(1 << qid); 2146 2147 if (ring->queued == 0) 2148 sc->sc_tx_timer = 0; 2149 else 2150 sc->sc_tx_timer = 5; 2151 } 2152 } 2153 2154 static void 2155 iwn5000_ict_reset(struct iwn_softc *sc) 2156 { 2157 /* Disable interrupts. */ 2158 IWN_WRITE(sc, IWN_INT_MASK, 0); 2159 2160 /* Reset ICT table. */ 2161 memset(sc->ict, 0, IWN_ICT_SIZE); 2162 sc->ict_cur = 0; 2163 2164 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, 2165 BUS_DMASYNC_PREWRITE); 2166 2167 /* Set physical address of ICT table (4KB aligned). */ 2168 DPRINTF(sc, IWN_DEBUG_RESET, "%s: enabling ICT\n", __func__); 2169 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | 2170 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12); 2171 2172 /* Enable periodic RX interrupt. */ 2173 sc->int_mask |= IWN_INT_RX_PERIODIC; 2174 /* Switch to ICT interrupt mode in driver. */ 2175 sc->sc_flags |= IWN_FLAG_USE_ICT; 2176 2177 /* Re-enable interrupts. */ 2178 IWN_WRITE(sc, IWN_INT, 0xffffffff); 2179 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 2180 } 2181 2182 static int 2183 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 2184 { 2185 struct iwn_ops *ops = &sc->ops; 2186 uint16_t val; 2187 int error; 2188 2189 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2190 2191 /* Check whether adapter has an EEPROM or an OTPROM. */ 2192 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 && 2193 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP)) 2194 sc->sc_flags |= IWN_FLAG_HAS_OTPROM; 2195 DPRINTF(sc, IWN_DEBUG_RESET, "%s found\n", 2196 (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? "OTPROM" : "EEPROM"); 2197 2198 /* Adapter has to be powered on for EEPROM access to work. */ 2199 if ((error = iwn_apm_init(sc)) != 0) { 2200 device_printf(sc->sc_dev, 2201 "%s: could not power ON adapter, error %d\n", __func__, 2202 error); 2203 return error; 2204 } 2205 2206 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) { 2207 device_printf(sc->sc_dev, "%s: bad ROM signature\n", __func__); 2208 return EIO; 2209 } 2210 if ((error = iwn_eeprom_lock(sc)) != 0) { 2211 device_printf(sc->sc_dev, "%s: could not lock ROM, error %d\n", 2212 __func__, error); 2213 return error; 2214 } 2215 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 2216 if ((error = iwn_init_otprom(sc)) != 0) { 2217 device_printf(sc->sc_dev, 2218 "%s: could not initialize OTPROM, error %d\n", 2219 __func__, error); 2220 return error; 2221 } 2222 } 2223 2224 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2); 2225 DPRINTF(sc, IWN_DEBUG_RESET, "SKU capabilities=0x%04x\n", le16toh(val)); 2226 /* Check if HT support is bonded out. */ 2227 if (val & htole16(IWN_EEPROM_SKU_CAP_11N)) 2228 sc->sc_flags |= IWN_FLAG_HAS_11N; 2229 2230 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2); 2231 sc->rfcfg = le16toh(val); 2232 DPRINTF(sc, IWN_DEBUG_RESET, "radio config=0x%04x\n", sc->rfcfg); 2233 /* Read Tx/Rx chains from ROM unless it's known to be broken. */ 2234 if (sc->txchainmask == 0) 2235 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg); 2236 if (sc->rxchainmask == 0) 2237 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg); 2238 2239 /* Read MAC address. */ 2240 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6); 2241 2242 /* Read adapter-specific information from EEPROM. */ 2243 ops->read_eeprom(sc); 2244 2245 iwn_apm_stop(sc); /* Power OFF adapter. */ 2246 2247 iwn_eeprom_unlock(sc); 2248 2249 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2250 2251 return 0; 2252 } 2253 2254 static void 2255 iwn4965_read_eeprom(struct iwn_softc *sc) 2256 { 2257 uint32_t addr; 2258 uint16_t val; 2259 int i; 2260 2261 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2262 2263 /* Read regulatory domain (4 ASCII characters). */ 2264 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4); 2265 2266 /* Read the list of authorized channels (20MHz & 40MHz). */ 2267 for (i = 0; i < IWN_NBANDS - 1; i++) { 2268 addr = iwn4965_regulatory_bands[i]; 2269 iwn_read_eeprom_channels(sc, i, addr); 2270 } 2271 2272 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */ 2273 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2); 2274 sc->maxpwr2GHz = val & 0xff; 2275 sc->maxpwr5GHz = val >> 8; 2276 /* Check that EEPROM values are within valid range. */ 2277 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 2278 sc->maxpwr5GHz = 38; 2279 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 2280 sc->maxpwr2GHz = 38; 2281 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n", 2282 sc->maxpwr2GHz, sc->maxpwr5GHz); 2283 2284 /* Read samples for each TX power group. */ 2285 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands, 2286 sizeof sc->bands); 2287 2288 /* Read voltage at which samples were taken. */ 2289 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2); 2290 sc->eeprom_voltage = (int16_t)le16toh(val); 2291 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n", 2292 sc->eeprom_voltage); 2293 2294 #ifdef IWN_DEBUG 2295 /* Print samples. */ 2296 if (sc->sc_debug & IWN_DEBUG_ANY) { 2297 for (i = 0; i < IWN_NBANDS - 1; i++) 2298 iwn4965_print_power_group(sc, i); 2299 } 2300 #endif 2301 2302 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2303 } 2304 2305 #ifdef IWN_DEBUG 2306 static void 2307 iwn4965_print_power_group(struct iwn_softc *sc, int i) 2308 { 2309 struct iwn4965_eeprom_band *band = &sc->bands[i]; 2310 struct iwn4965_eeprom_chan_samples *chans = band->chans; 2311 int j, c; 2312 2313 printf("===band %d===\n", i); 2314 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 2315 printf("chan1 num=%d\n", chans[0].num); 2316 for (c = 0; c < 2; c++) { 2317 for (j = 0; j < IWN_NSAMPLES; j++) { 2318 printf("chain %d, sample %d: temp=%d gain=%d " 2319 "power=%d pa_det=%d\n", c, j, 2320 chans[0].samples[c][j].temp, 2321 chans[0].samples[c][j].gain, 2322 chans[0].samples[c][j].power, 2323 chans[0].samples[c][j].pa_det); 2324 } 2325 } 2326 printf("chan2 num=%d\n", chans[1].num); 2327 for (c = 0; c < 2; c++) { 2328 for (j = 0; j < IWN_NSAMPLES; j++) { 2329 printf("chain %d, sample %d: temp=%d gain=%d " 2330 "power=%d pa_det=%d\n", c, j, 2331 chans[1].samples[c][j].temp, 2332 chans[1].samples[c][j].gain, 2333 chans[1].samples[c][j].power, 2334 chans[1].samples[c][j].pa_det); 2335 } 2336 } 2337 } 2338 #endif 2339 2340 static void 2341 iwn5000_read_eeprom(struct iwn_softc *sc) 2342 { 2343 struct iwn5000_eeprom_calib_hdr hdr; 2344 int32_t volt; 2345 uint32_t base, addr; 2346 uint16_t val; 2347 int i; 2348 2349 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2350 2351 /* Read regulatory domain (4 ASCII characters). */ 2352 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2353 base = le16toh(val); 2354 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN, 2355 sc->eeprom_domain, 4); 2356 2357 /* Read the list of authorized channels (20MHz & 40MHz). */ 2358 for (i = 0; i < IWN_NBANDS - 1; i++) { 2359 addr = base + sc->base_params->regulatory_bands[i]; 2360 iwn_read_eeprom_channels(sc, i, addr); 2361 } 2362 2363 /* Read enhanced TX power information for 6000 Series. */ 2364 if (sc->base_params->enhanced_TX_power) 2365 iwn_read_eeprom_enhinfo(sc); 2366 2367 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2); 2368 base = le16toh(val); 2369 iwn_read_prom_data(sc, base, &hdr, sizeof hdr); 2370 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 2371 "%s: calib version=%u pa type=%u voltage=%u\n", __func__, 2372 hdr.version, hdr.pa_type, le16toh(hdr.volt)); 2373 sc->calib_ver = hdr.version; 2374 2375 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TEMP_OFFSETv2) { 2376 sc->eeprom_voltage = le16toh(hdr.volt); 2377 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 2378 sc->eeprom_temp_high=le16toh(val); 2379 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 2380 sc->eeprom_temp = le16toh(val); 2381 } 2382 2383 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 2384 /* Compute temperature offset. */ 2385 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 2386 sc->eeprom_temp = le16toh(val); 2387 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 2388 volt = le16toh(val); 2389 sc->temp_off = sc->eeprom_temp - (volt / -5); 2390 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "temp=%d volt=%d offset=%dK\n", 2391 sc->eeprom_temp, volt, sc->temp_off); 2392 } else { 2393 /* Read crystal calibration. */ 2394 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL, 2395 &sc->eeprom_crystal, sizeof (uint32_t)); 2396 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "crystal calibration 0x%08x\n", 2397 le32toh(sc->eeprom_crystal)); 2398 } 2399 2400 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2401 2402 } 2403 2404 /* 2405 * Translate EEPROM flags to net80211. 2406 */ 2407 static uint32_t 2408 iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel) 2409 { 2410 uint32_t nflags; 2411 2412 nflags = 0; 2413 if ((channel->flags & IWN_EEPROM_CHAN_ACTIVE) == 0) 2414 nflags |= IEEE80211_CHAN_PASSIVE; 2415 if ((channel->flags & IWN_EEPROM_CHAN_IBSS) == 0) 2416 nflags |= IEEE80211_CHAN_NOADHOC; 2417 if (channel->flags & IWN_EEPROM_CHAN_RADAR) { 2418 nflags |= IEEE80211_CHAN_DFS; 2419 /* XXX apparently IBSS may still be marked */ 2420 nflags |= IEEE80211_CHAN_NOADHOC; 2421 } 2422 2423 return nflags; 2424 } 2425 2426 static void 2427 iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans, 2428 struct ieee80211_channel chans[]) 2429 { 2430 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 2431 const struct iwn_chan_band *band = &iwn_bands[n]; 2432 uint8_t bands[IEEE80211_MODE_BYTES]; 2433 uint8_t chan; 2434 int i, error, nflags; 2435 2436 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2437 2438 memset(bands, 0, sizeof(bands)); 2439 if (n == 0) { 2440 setbit(bands, IEEE80211_MODE_11B); 2441 setbit(bands, IEEE80211_MODE_11G); 2442 if (sc->sc_flags & IWN_FLAG_HAS_11N) 2443 setbit(bands, IEEE80211_MODE_11NG); 2444 } else { 2445 setbit(bands, IEEE80211_MODE_11A); 2446 if (sc->sc_flags & IWN_FLAG_HAS_11N) 2447 setbit(bands, IEEE80211_MODE_11NA); 2448 } 2449 2450 for (i = 0; i < band->nchan; i++) { 2451 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 2452 DPRINTF(sc, IWN_DEBUG_RESET, 2453 "skip chan %d flags 0x%x maxpwr %d\n", 2454 band->chan[i], channels[i].flags, 2455 channels[i].maxpwr); 2456 continue; 2457 } 2458 2459 chan = band->chan[i]; 2460 nflags = iwn_eeprom_channel_flags(&channels[i]); 2461 error = ieee80211_add_channel(chans, maxchans, nchans, 2462 chan, 0, channels[i].maxpwr, nflags, bands); 2463 if (error != 0) 2464 break; 2465 2466 /* Save maximum allowed TX power for this channel. */ 2467 /* XXX wrong */ 2468 sc->maxpwr[chan] = channels[i].maxpwr; 2469 2470 DPRINTF(sc, IWN_DEBUG_RESET, 2471 "add chan %d flags 0x%x maxpwr %d\n", chan, 2472 channels[i].flags, channels[i].maxpwr); 2473 } 2474 2475 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2476 2477 } 2478 2479 static void 2480 iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans, 2481 struct ieee80211_channel chans[]) 2482 { 2483 struct iwn_eeprom_chan *channels = sc->eeprom_channels[n]; 2484 const struct iwn_chan_band *band = &iwn_bands[n]; 2485 uint8_t chan; 2486 int i, error, nflags; 2487 2488 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s start\n", __func__); 2489 2490 if (!(sc->sc_flags & IWN_FLAG_HAS_11N)) { 2491 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end no 11n\n", __func__); 2492 return; 2493 } 2494 2495 for (i = 0; i < band->nchan; i++) { 2496 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 2497 DPRINTF(sc, IWN_DEBUG_RESET, 2498 "skip chan %d flags 0x%x maxpwr %d\n", 2499 band->chan[i], channels[i].flags, 2500 channels[i].maxpwr); 2501 continue; 2502 } 2503 2504 chan = band->chan[i]; 2505 nflags = iwn_eeprom_channel_flags(&channels[i]); 2506 nflags |= (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A); 2507 error = ieee80211_add_channel_ht40(chans, maxchans, nchans, 2508 chan, channels[i].maxpwr, nflags); 2509 switch (error) { 2510 case EINVAL: 2511 device_printf(sc->sc_dev, 2512 "%s: no entry for channel %d\n", __func__, chan); 2513 continue; 2514 case ENOENT: 2515 DPRINTF(sc, IWN_DEBUG_RESET, 2516 "%s: skip chan %d, extension channel not found\n", 2517 __func__, chan); 2518 continue; 2519 case ENOBUFS: 2520 device_printf(sc->sc_dev, 2521 "%s: channel table is full!\n", __func__); 2522 break; 2523 case 0: 2524 DPRINTF(sc, IWN_DEBUG_RESET, 2525 "add ht40 chan %d flags 0x%x maxpwr %d\n", 2526 chan, channels[i].flags, channels[i].maxpwr); 2527 /* FALLTHROUGH */ 2528 default: 2529 break; 2530 } 2531 } 2532 2533 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2534 2535 } 2536 2537 static void 2538 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr) 2539 { 2540 struct ieee80211com *ic = &sc->sc_ic; 2541 2542 iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n], 2543 iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan)); 2544 2545 if (n < 5) { 2546 iwn_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2547 ic->ic_channels); 2548 } else { 2549 iwn_read_eeprom_ht40(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2550 ic->ic_channels); 2551 } 2552 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 2553 } 2554 2555 static struct iwn_eeprom_chan * 2556 iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c) 2557 { 2558 int band, chan, i, j; 2559 2560 if (IEEE80211_IS_CHAN_HT40(c)) { 2561 band = IEEE80211_IS_CHAN_5GHZ(c) ? 6 : 5; 2562 if (IEEE80211_IS_CHAN_HT40D(c)) 2563 chan = c->ic_extieee; 2564 else 2565 chan = c->ic_ieee; 2566 for (i = 0; i < iwn_bands[band].nchan; i++) { 2567 if (iwn_bands[band].chan[i] == chan) 2568 return &sc->eeprom_channels[band][i]; 2569 } 2570 } else { 2571 for (j = 0; j < 5; j++) { 2572 for (i = 0; i < iwn_bands[j].nchan; i++) { 2573 if (iwn_bands[j].chan[i] == c->ic_ieee && 2574 ((j == 0) ^ IEEE80211_IS_CHAN_A(c)) == 1) 2575 return &sc->eeprom_channels[j][i]; 2576 } 2577 } 2578 } 2579 return NULL; 2580 } 2581 2582 static void 2583 iwn_getradiocaps(struct ieee80211com *ic, 2584 int maxchans, int *nchans, struct ieee80211_channel chans[]) 2585 { 2586 struct iwn_softc *sc = ic->ic_softc; 2587 int i; 2588 2589 /* Parse the list of authorized channels. */ 2590 for (i = 0; i < 5 && *nchans < maxchans; i++) 2591 iwn_read_eeprom_band(sc, i, maxchans, nchans, chans); 2592 for (i = 5; i < IWN_NBANDS - 1 && *nchans < maxchans; i++) 2593 iwn_read_eeprom_ht40(sc, i, maxchans, nchans, chans); 2594 } 2595 2596 /* 2597 * Enforce flags read from EEPROM. 2598 */ 2599 static int 2600 iwn_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 2601 int nchan, struct ieee80211_channel chans[]) 2602 { 2603 struct iwn_softc *sc = ic->ic_softc; 2604 int i; 2605 2606 for (i = 0; i < nchan; i++) { 2607 struct ieee80211_channel *c = &chans[i]; 2608 struct iwn_eeprom_chan *channel; 2609 2610 channel = iwn_find_eeprom_channel(sc, c); 2611 if (channel == NULL) { 2612 ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n", 2613 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 2614 return EINVAL; 2615 } 2616 c->ic_flags |= iwn_eeprom_channel_flags(channel); 2617 } 2618 2619 return 0; 2620 } 2621 2622 static void 2623 iwn_read_eeprom_enhinfo(struct iwn_softc *sc) 2624 { 2625 struct iwn_eeprom_enhinfo enhinfo[35]; 2626 struct ieee80211com *ic = &sc->sc_ic; 2627 struct ieee80211_channel *c; 2628 uint16_t val, base; 2629 int8_t maxpwr; 2630 uint8_t flags; 2631 int i, j; 2632 2633 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2634 2635 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 2636 base = le16toh(val); 2637 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO, 2638 enhinfo, sizeof enhinfo); 2639 2640 for (i = 0; i < nitems(enhinfo); i++) { 2641 flags = enhinfo[i].flags; 2642 if (!(flags & IWN_ENHINFO_VALID)) 2643 continue; /* Skip invalid entries. */ 2644 2645 maxpwr = 0; 2646 if (sc->txchainmask & IWN_ANT_A) 2647 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]); 2648 if (sc->txchainmask & IWN_ANT_B) 2649 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]); 2650 if (sc->txchainmask & IWN_ANT_C) 2651 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]); 2652 if (sc->ntxchains == 2) 2653 maxpwr = MAX(maxpwr, enhinfo[i].mimo2); 2654 else if (sc->ntxchains == 3) 2655 maxpwr = MAX(maxpwr, enhinfo[i].mimo3); 2656 2657 for (j = 0; j < ic->ic_nchans; j++) { 2658 c = &ic->ic_channels[j]; 2659 if ((flags & IWN_ENHINFO_5GHZ)) { 2660 if (!IEEE80211_IS_CHAN_A(c)) 2661 continue; 2662 } else if ((flags & IWN_ENHINFO_OFDM)) { 2663 if (!IEEE80211_IS_CHAN_G(c)) 2664 continue; 2665 } else if (!IEEE80211_IS_CHAN_B(c)) 2666 continue; 2667 if ((flags & IWN_ENHINFO_HT40)) { 2668 if (!IEEE80211_IS_CHAN_HT40(c)) 2669 continue; 2670 } else { 2671 if (IEEE80211_IS_CHAN_HT40(c)) 2672 continue; 2673 } 2674 if (enhinfo[i].chan != 0 && 2675 enhinfo[i].chan != c->ic_ieee) 2676 continue; 2677 2678 DPRINTF(sc, IWN_DEBUG_RESET, 2679 "channel %d(%x), maxpwr %d\n", c->ic_ieee, 2680 c->ic_flags, maxpwr / 2); 2681 c->ic_maxregpower = maxpwr / 2; 2682 c->ic_maxpower = maxpwr; 2683 } 2684 } 2685 2686 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__); 2687 2688 } 2689 2690 static struct ieee80211_node * 2691 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 2692 { 2693 struct iwn_node *wn; 2694 2695 wn = malloc(sizeof (struct iwn_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2696 if (wn == NULL) 2697 return (NULL); 2698 2699 wn->id = IWN_ID_UNDEFINED; 2700 2701 return (&wn->ni); 2702 } 2703 2704 static __inline int 2705 rate2plcp(int rate) 2706 { 2707 switch (rate & 0xff) { 2708 case 12: return 0xd; 2709 case 18: return 0xf; 2710 case 24: return 0x5; 2711 case 36: return 0x7; 2712 case 48: return 0x9; 2713 case 72: return 0xb; 2714 case 96: return 0x1; 2715 case 108: return 0x3; 2716 case 2: return 10; 2717 case 4: return 20; 2718 case 11: return 55; 2719 case 22: return 110; 2720 } 2721 return 0; 2722 } 2723 2724 static __inline uint8_t 2725 plcp2rate(const uint8_t rate_plcp) 2726 { 2727 switch (rate_plcp) { 2728 case 0xd: return 12; 2729 case 0xf: return 18; 2730 case 0x5: return 24; 2731 case 0x7: return 36; 2732 case 0x9: return 48; 2733 case 0xb: return 72; 2734 case 0x1: return 96; 2735 case 0x3: return 108; 2736 case 10: return 2; 2737 case 20: return 4; 2738 case 55: return 11; 2739 case 110: return 22; 2740 default: return 0; 2741 } 2742 } 2743 2744 static int 2745 iwn_get_1stream_tx_antmask(struct iwn_softc *sc) 2746 { 2747 2748 return IWN_LSB(sc->txchainmask); 2749 } 2750 2751 static int 2752 iwn_get_2stream_tx_antmask(struct iwn_softc *sc) 2753 { 2754 int tx; 2755 2756 /* 2757 * The '2 stream' setup is a bit .. odd. 2758 * 2759 * For NICs that support only 1 antenna, default to IWN_ANT_AB or 2760 * the firmware panics (eg Intel 5100.) 2761 * 2762 * For NICs that support two antennas, we use ANT_AB. 2763 * 2764 * For NICs that support three antennas, we use the two that 2765 * wasn't the default one. 2766 * 2767 * XXX TODO: if bluetooth (full concurrent) is enabled, restrict 2768 * this to only one antenna. 2769 */ 2770 2771 /* Default - transmit on the other antennas */ 2772 tx = (sc->txchainmask & ~IWN_LSB(sc->txchainmask)); 2773 2774 /* Now, if it's zero, set it to IWN_ANT_AB, so to not panic firmware */ 2775 if (tx == 0) 2776 tx = IWN_ANT_AB; 2777 2778 /* 2779 * If the NIC is a two-stream TX NIC, configure the TX mask to 2780 * the default chainmask 2781 */ 2782 else if (sc->ntxchains == 2) 2783 tx = sc->txchainmask; 2784 2785 return (tx); 2786 } 2787 2788 2789 2790 /* 2791 * Calculate the required PLCP value from the given rate, 2792 * to the given node. 2793 * 2794 * This will take the node configuration (eg 11n, rate table 2795 * setup, etc) into consideration. 2796 */ 2797 static uint32_t 2798 iwn_rate_to_plcp(struct iwn_softc *sc, struct ieee80211_node *ni, 2799 uint8_t rate) 2800 { 2801 struct ieee80211com *ic = ni->ni_ic; 2802 uint32_t plcp = 0; 2803 int ridx; 2804 2805 /* 2806 * If it's an MCS rate, let's set the plcp correctly 2807 * and set the relevant flags based on the node config. 2808 */ 2809 if (rate & IEEE80211_RATE_MCS) { 2810 /* 2811 * Set the initial PLCP value to be between 0->31 for 2812 * MCS 0 -> MCS 31, then set the "I'm an MCS rate!" 2813 * flag. 2814 */ 2815 plcp = IEEE80211_RV(rate) | IWN_RFLAG_MCS; 2816 2817 /* 2818 * XXX the following should only occur if both 2819 * the local configuration _and_ the remote node 2820 * advertise these capabilities. Thus this code 2821 * may need fixing! 2822 */ 2823 2824 /* 2825 * Set the channel width and guard interval. 2826 */ 2827 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 2828 plcp |= IWN_RFLAG_HT40; 2829 if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40) 2830 plcp |= IWN_RFLAG_SGI; 2831 } else if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20) { 2832 plcp |= IWN_RFLAG_SGI; 2833 } 2834 2835 /* 2836 * Ensure the selected rate matches the link quality 2837 * table entries being used. 2838 */ 2839 if (rate > 0x8f) 2840 plcp |= IWN_RFLAG_ANT(sc->txchainmask); 2841 else if (rate > 0x87) 2842 plcp |= IWN_RFLAG_ANT(iwn_get_2stream_tx_antmask(sc)); 2843 else 2844 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc)); 2845 } else { 2846 /* 2847 * Set the initial PLCP - fine for both 2848 * OFDM and CCK rates. 2849 */ 2850 plcp = rate2plcp(rate); 2851 2852 /* Set CCK flag if it's CCK */ 2853 2854 /* XXX It would be nice to have a method 2855 * to map the ridx -> phy table entry 2856 * so we could just query that, rather than 2857 * this hack to check against IWN_RIDX_OFDM6. 2858 */ 2859 ridx = ieee80211_legacy_rate_lookup(ic->ic_rt, 2860 rate & IEEE80211_RATE_VAL); 2861 if (ridx < IWN_RIDX_OFDM6 && 2862 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2863 plcp |= IWN_RFLAG_CCK; 2864 2865 /* Set antenna configuration */ 2866 /* XXX TODO: is this the right antenna to use for legacy? */ 2867 plcp |= IWN_RFLAG_ANT(iwn_get_1stream_tx_antmask(sc)); 2868 } 2869 2870 DPRINTF(sc, IWN_DEBUG_TXRATE, "%s: rate=0x%02x, plcp=0x%08x\n", 2871 __func__, 2872 rate, 2873 plcp); 2874 2875 return (htole32(plcp)); 2876 } 2877 2878 static void 2879 iwn_newassoc(struct ieee80211_node *ni, int isnew) 2880 { 2881 /* Doesn't do anything at the moment */ 2882 } 2883 2884 static int 2885 iwn_media_change(struct ifnet *ifp) 2886 { 2887 int error; 2888 2889 error = ieee80211_media_change(ifp); 2890 /* NB: only the fixed rate can change and that doesn't need a reset */ 2891 return (error == ENETRESET ? 0 : error); 2892 } 2893 2894 static int 2895 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2896 { 2897 struct iwn_vap *ivp = IWN_VAP(vap); 2898 struct ieee80211com *ic = vap->iv_ic; 2899 struct iwn_softc *sc = ic->ic_softc; 2900 int error = 0; 2901 2902 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 2903 2904 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__, 2905 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]); 2906 2907 IEEE80211_UNLOCK(ic); 2908 IWN_LOCK(sc); 2909 callout_stop(&sc->calib_to); 2910 2911 sc->rxon = &sc->rx_on[IWN_RXON_BSS_CTX]; 2912 2913 switch (nstate) { 2914 case IEEE80211_S_ASSOC: 2915 if (vap->iv_state != IEEE80211_S_RUN) 2916 break; 2917 /* FALLTHROUGH */ 2918 case IEEE80211_S_AUTH: 2919 if (vap->iv_state == IEEE80211_S_AUTH) 2920 break; 2921 2922 /* 2923 * !AUTH -> AUTH transition requires state reset to handle 2924 * reassociations correctly. 2925 */ 2926 sc->rxon->associd = 0; 2927 sc->rxon->filter &= ~htole32(IWN_FILTER_BSS); 2928 sc->calib.state = IWN_CALIB_STATE_INIT; 2929 2930 /* Wait until we hear a beacon before we transmit */ 2931 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 2932 sc->sc_beacon_wait = 1; 2933 2934 if ((error = iwn_auth(sc, vap)) != 0) { 2935 device_printf(sc->sc_dev, 2936 "%s: could not move to auth state\n", __func__); 2937 } 2938 break; 2939 2940 case IEEE80211_S_RUN: 2941 /* 2942 * RUN -> RUN transition; Just restart the timers. 2943 */ 2944 if (vap->iv_state == IEEE80211_S_RUN) { 2945 sc->calib_cnt = 0; 2946 break; 2947 } 2948 2949 /* Wait until we hear a beacon before we transmit */ 2950 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 2951 sc->sc_beacon_wait = 1; 2952 2953 /* 2954 * !RUN -> RUN requires setting the association id 2955 * which is done with a firmware cmd. We also defer 2956 * starting the timers until that work is done. 2957 */ 2958 if ((error = iwn_run(sc, vap)) != 0) { 2959 device_printf(sc->sc_dev, 2960 "%s: could not move to run state\n", __func__); 2961 } 2962 break; 2963 2964 case IEEE80211_S_INIT: 2965 sc->calib.state = IWN_CALIB_STATE_INIT; 2966 /* 2967 * Purge the xmit queue so we don't have old frames 2968 * during a new association attempt. 2969 */ 2970 sc->sc_beacon_wait = 0; 2971 iwn_xmit_queue_drain(sc); 2972 break; 2973 2974 default: 2975 break; 2976 } 2977 IWN_UNLOCK(sc); 2978 IEEE80211_LOCK(ic); 2979 if (error != 0){ 2980 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end in error\n", __func__); 2981 return error; 2982 } 2983 2984 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 2985 2986 return ivp->iv_newstate(vap, nstate, arg); 2987 } 2988 2989 static void 2990 iwn_calib_timeout(void *arg) 2991 { 2992 struct iwn_softc *sc = arg; 2993 2994 IWN_LOCK_ASSERT(sc); 2995 2996 /* Force automatic TX power calibration every 60 secs. */ 2997 if (++sc->calib_cnt >= 120) { 2998 uint32_t flags = 0; 2999 3000 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n", 3001 "sending request for statistics"); 3002 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, 3003 sizeof flags, 1); 3004 sc->calib_cnt = 0; 3005 } 3006 callout_reset(&sc->calib_to, msecs_to_ticks(500), iwn_calib_timeout, 3007 sc); 3008 } 3009 3010 /* 3011 * Process an RX_PHY firmware notification. This is usually immediately 3012 * followed by an MPDU_RX_DONE notification. 3013 */ 3014 static void 3015 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3016 { 3017 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1); 3018 3019 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: received PHY stats\n", __func__); 3020 3021 /* Save RX statistics, they will be used on MPDU_RX_DONE. */ 3022 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 3023 sc->last_rx_valid = 1; 3024 } 3025 3026 /* 3027 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification. 3028 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one. 3029 */ 3030 static void 3031 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 3032 struct iwn_rx_data *data) 3033 { 3034 struct iwn_ops *ops = &sc->ops; 3035 struct ieee80211com *ic = &sc->sc_ic; 3036 struct iwn_rx_ring *ring = &sc->rxq; 3037 struct ieee80211_frame_min *wh; 3038 struct ieee80211_node *ni; 3039 struct mbuf *m, *m1; 3040 struct iwn_rx_stat *stat; 3041 caddr_t head; 3042 bus_addr_t paddr; 3043 uint32_t flags; 3044 int error, len, rssi, nf; 3045 3046 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3047 3048 if (desc->type == IWN_MPDU_RX_DONE) { 3049 /* Check for prior RX_PHY notification. */ 3050 if (!sc->last_rx_valid) { 3051 DPRINTF(sc, IWN_DEBUG_ANY, 3052 "%s: missing RX_PHY\n", __func__); 3053 return; 3054 } 3055 stat = &sc->last_rx_stat; 3056 } else 3057 stat = (struct iwn_rx_stat *)(desc + 1); 3058 3059 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 3060 device_printf(sc->sc_dev, 3061 "%s: invalid RX statistic header, len %d\n", __func__, 3062 stat->cfg_phy_len); 3063 return; 3064 } 3065 if (desc->type == IWN_MPDU_RX_DONE) { 3066 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1); 3067 head = (caddr_t)(mpdu + 1); 3068 len = le16toh(mpdu->len); 3069 } else { 3070 head = (caddr_t)(stat + 1) + stat->cfg_phy_len; 3071 len = le16toh(stat->len); 3072 } 3073 3074 flags = le32toh(*(uint32_t *)(head + len)); 3075 3076 /* Discard frames with a bad FCS early. */ 3077 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 3078 DPRINTF(sc, IWN_DEBUG_RECV, "%s: RX flags error %x\n", 3079 __func__, flags); 3080 counter_u64_add(ic->ic_ierrors, 1); 3081 return; 3082 } 3083 /* Discard frames that are too short. */ 3084 if (len < sizeof (struct ieee80211_frame_ack)) { 3085 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n", 3086 __func__, len); 3087 counter_u64_add(ic->ic_ierrors, 1); 3088 return; 3089 } 3090 3091 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWN_RBUF_SIZE); 3092 if (m1 == NULL) { 3093 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n", 3094 __func__); 3095 counter_u64_add(ic->ic_ierrors, 1); 3096 return; 3097 } 3098 bus_dmamap_unload(ring->data_dmat, data->map); 3099 3100 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *), 3101 IWN_RBUF_SIZE, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 3102 if (error != 0 && error != EFBIG) { 3103 device_printf(sc->sc_dev, 3104 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 3105 m_freem(m1); 3106 3107 /* Try to reload the old mbuf. */ 3108 error = bus_dmamap_load(ring->data_dmat, data->map, 3109 mtod(data->m, void *), IWN_RBUF_SIZE, iwn_dma_map_addr, 3110 &paddr, BUS_DMA_NOWAIT); 3111 if (error != 0 && error != EFBIG) { 3112 panic("%s: could not load old RX mbuf", __func__); 3113 } 3114 bus_dmamap_sync(ring->data_dmat, data->map, 3115 BUS_DMASYNC_PREREAD); 3116 /* Physical address may have changed. */ 3117 ring->desc[ring->cur] = htole32(paddr >> 8); 3118 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3119 BUS_DMASYNC_PREWRITE); 3120 counter_u64_add(ic->ic_ierrors, 1); 3121 return; 3122 } 3123 3124 bus_dmamap_sync(ring->data_dmat, data->map, 3125 BUS_DMASYNC_PREREAD); 3126 3127 m = data->m; 3128 data->m = m1; 3129 /* Update RX descriptor. */ 3130 ring->desc[ring->cur] = htole32(paddr >> 8); 3131 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3132 BUS_DMASYNC_PREWRITE); 3133 3134 /* Finalize mbuf. */ 3135 m->m_data = head; 3136 m->m_pkthdr.len = m->m_len = len; 3137 3138 /* Grab a reference to the source node. */ 3139 wh = mtod(m, struct ieee80211_frame_min *); 3140 if (len >= sizeof(struct ieee80211_frame_min)) 3141 ni = ieee80211_find_rxnode(ic, wh); 3142 else 3143 ni = NULL; 3144 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN && 3145 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95; 3146 3147 rssi = ops->get_rssi(sc, stat); 3148 3149 if (ieee80211_radiotap_active(ic)) { 3150 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 3151 uint32_t rate = le32toh(stat->rate); 3152 3153 tap->wr_flags = 0; 3154 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) 3155 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3156 tap->wr_dbm_antsignal = (int8_t)rssi; 3157 tap->wr_dbm_antnoise = (int8_t)nf; 3158 tap->wr_tsft = stat->tstamp; 3159 if (rate & IWN_RFLAG_MCS) { 3160 tap->wr_rate = rate & IWN_RFLAG_RATE_MCS; 3161 tap->wr_rate |= IEEE80211_RATE_MCS; 3162 } else 3163 tap->wr_rate = plcp2rate(rate & IWN_RFLAG_RATE); 3164 } 3165 3166 /* 3167 * If it's a beacon and we're waiting, then do the 3168 * wakeup. This should unblock raw_xmit/start. 3169 */ 3170 if (sc->sc_beacon_wait) { 3171 uint8_t type, subtype; 3172 /* NB: Re-assign wh */ 3173 wh = mtod(m, struct ieee80211_frame_min *); 3174 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 3175 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3176 /* 3177 * This assumes at this point we've received our own 3178 * beacon. 3179 */ 3180 DPRINTF(sc, IWN_DEBUG_TRACE, 3181 "%s: beacon_wait, type=%d, subtype=%d\n", 3182 __func__, type, subtype); 3183 if (type == IEEE80211_FC0_TYPE_MGT && 3184 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 3185 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, 3186 "%s: waking things up\n", __func__); 3187 /* queue taskqueue to transmit! */ 3188 taskqueue_enqueue(sc->sc_tq, &sc->sc_xmit_task); 3189 } 3190 } 3191 3192 IWN_UNLOCK(sc); 3193 3194 /* Send the frame to the 802.11 layer. */ 3195 if (ni != NULL) { 3196 if (ni->ni_flags & IEEE80211_NODE_HT) 3197 m->m_flags |= M_AMPDU; 3198 (void)ieee80211_input(ni, m, rssi - nf, nf); 3199 /* Node is no longer needed. */ 3200 ieee80211_free_node(ni); 3201 } else 3202 (void)ieee80211_input_all(ic, m, rssi - nf, nf); 3203 3204 IWN_LOCK(sc); 3205 3206 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3207 3208 } 3209 3210 static void 3211 iwn_agg_tx_complete(struct iwn_softc *sc, struct iwn_tx_ring *ring, int tid, 3212 int idx, int success) 3213 { 3214 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs; 3215 struct iwn_tx_data *data = &ring->data[idx]; 3216 struct iwn_node *wn; 3217 struct mbuf *m; 3218 struct ieee80211_node *ni; 3219 3220 KASSERT(data->ni != NULL, ("idx %d: no node", idx)); 3221 KASSERT(data->m != NULL, ("idx %d: no mbuf", idx)); 3222 3223 /* Unmap and free mbuf. */ 3224 bus_dmamap_sync(ring->data_dmat, data->map, 3225 BUS_DMASYNC_POSTWRITE); 3226 bus_dmamap_unload(ring->data_dmat, data->map); 3227 m = data->m, data->m = NULL; 3228 ni = data->ni, data->ni = NULL; 3229 wn = (void *)ni; 3230 3231 #if 0 3232 /* XXX causes significant performance degradation. */ 3233 txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY | 3234 IEEE80211_RATECTL_STATUS_LONG_RETRY; 3235 txs->long_retries = data->long_retries - 1; 3236 #else 3237 txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY; 3238 #endif 3239 txs->short_retries = wn->agg[tid].short_retries; 3240 if (success) 3241 txs->status = IEEE80211_RATECTL_TX_SUCCESS; 3242 else 3243 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 3244 3245 wn->agg[tid].short_retries = 0; 3246 data->long_retries = 0; 3247 3248 DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: freeing m %p ni %p idx %d qid %d\n", 3249 __func__, m, ni, idx, ring->qid); 3250 ieee80211_ratectl_tx_complete(ni, txs); 3251 ieee80211_tx_complete(ni, m, !success); 3252 } 3253 3254 /* Process an incoming Compressed BlockAck. */ 3255 static void 3256 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3257 { 3258 struct iwn_tx_ring *ring; 3259 struct iwn_tx_data *data; 3260 struct iwn_node *wn; 3261 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1); 3262 struct ieee80211_tx_ampdu *tap; 3263 uint64_t bitmap; 3264 uint8_t tid; 3265 int i, qid, shift; 3266 int tx_ok = 0; 3267 3268 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3269 3270 qid = le16toh(ba->qid); 3271 tap = sc->qid2tap[qid]; 3272 ring = &sc->txq[qid]; 3273 tid = tap->txa_tid; 3274 wn = (void *)tap->txa_ni; 3275 3276 DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: qid %d tid %d seq %04X ssn %04X\n" 3277 "bitmap: ba %016jX wn %016jX, start %d\n", 3278 __func__, qid, tid, le16toh(ba->seq), le16toh(ba->ssn), 3279 (uintmax_t)le64toh(ba->bitmap), (uintmax_t)wn->agg[tid].bitmap, 3280 wn->agg[tid].startidx); 3281 3282 if (wn->agg[tid].bitmap == 0) 3283 return; 3284 3285 shift = wn->agg[tid].startidx - ((le16toh(ba->seq) >> 4) & 0xff); 3286 if (shift <= -64) 3287 shift += 0x100; 3288 3289 /* 3290 * Walk the bitmap and calculate how many successful attempts 3291 * are made. 3292 * 3293 * Yes, the rate control code doesn't know these are A-MPDU 3294 * subframes; due to that long_retries stats are not used here. 3295 */ 3296 bitmap = le64toh(ba->bitmap); 3297 if (shift >= 0) 3298 bitmap >>= shift; 3299 else 3300 bitmap <<= -shift; 3301 bitmap &= wn->agg[tid].bitmap; 3302 wn->agg[tid].bitmap = 0; 3303 3304 for (i = wn->agg[tid].startidx; 3305 bitmap; 3306 bitmap >>= 1, i = (i + 1) % IWN_TX_RING_COUNT) { 3307 if ((bitmap & 1) == 0) 3308 continue; 3309 3310 data = &ring->data[i]; 3311 if (__predict_false(data->m == NULL)) { 3312 /* 3313 * There is no frame; skip this entry. 3314 * 3315 * NB: it is "ok" to have both 3316 * 'tx done' + 'compressed BA' replies for frame 3317 * with STATE_SCD_QUERY status. 3318 */ 3319 DPRINTF(sc, IWN_DEBUG_AMPDU, 3320 "%s: ring %d: no entry %d\n", __func__, qid, i); 3321 continue; 3322 } 3323 3324 tx_ok++; 3325 iwn_agg_tx_complete(sc, ring, tid, i, 1); 3326 } 3327 3328 ring->queued -= tx_ok; 3329 iwn_check_tx_ring(sc, qid); 3330 3331 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_AMPDU, 3332 "->%s: end; %d ok\n",__func__, tx_ok); 3333 } 3334 3335 /* 3336 * Process a CALIBRATION_RESULT notification sent by the initialization 3337 * firmware on response to a CMD_CALIB_CONFIG command (5000 only). 3338 */ 3339 static void 3340 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3341 { 3342 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1); 3343 int len, idx = -1; 3344 3345 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3346 3347 /* Runtime firmware should not send such a notification. */ 3348 if (sc->sc_flags & IWN_FLAG_CALIB_DONE){ 3349 DPRINTF(sc, IWN_DEBUG_TRACE, 3350 "->%s received after calib done\n", __func__); 3351 return; 3352 } 3353 len = (le32toh(desc->len) & 0x3fff) - 4; 3354 3355 switch (calib->code) { 3356 case IWN5000_PHY_CALIB_DC: 3357 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_DC) 3358 idx = 0; 3359 break; 3360 case IWN5000_PHY_CALIB_LO: 3361 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_LO) 3362 idx = 1; 3363 break; 3364 case IWN5000_PHY_CALIB_TX_IQ: 3365 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ) 3366 idx = 2; 3367 break; 3368 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC: 3369 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_TX_IQ_PERIODIC) 3370 idx = 3; 3371 break; 3372 case IWN5000_PHY_CALIB_BASE_BAND: 3373 if (sc->base_params->calib_need & IWN_FLG_NEED_PHY_CALIB_BASE_BAND) 3374 idx = 4; 3375 break; 3376 } 3377 if (idx == -1) /* Ignore other results. */ 3378 return; 3379 3380 /* Save calibration result. */ 3381 if (sc->calibcmd[idx].buf != NULL) 3382 free(sc->calibcmd[idx].buf, M_DEVBUF); 3383 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT); 3384 if (sc->calibcmd[idx].buf == NULL) { 3385 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3386 "not enough memory for calibration result %d\n", 3387 calib->code); 3388 return; 3389 } 3390 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3391 "saving calibration result idx=%d, code=%d len=%d\n", idx, calib->code, len); 3392 sc->calibcmd[idx].len = len; 3393 memcpy(sc->calibcmd[idx].buf, calib, len); 3394 } 3395 3396 static void 3397 iwn_stats_update(struct iwn_softc *sc, struct iwn_calib_state *calib, 3398 struct iwn_stats *stats, int len) 3399 { 3400 struct iwn_stats_bt *stats_bt; 3401 struct iwn_stats *lstats; 3402 3403 /* 3404 * First - check whether the length is the bluetooth or normal. 3405 * 3406 * If it's normal - just copy it and bump out. 3407 * Otherwise we have to convert things. 3408 */ 3409 3410 if (len == sizeof(struct iwn_stats) + 4) { 3411 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats)); 3412 sc->last_stat_valid = 1; 3413 return; 3414 } 3415 3416 /* 3417 * If it's not the bluetooth size - log, then just copy. 3418 */ 3419 if (len != sizeof(struct iwn_stats_bt) + 4) { 3420 DPRINTF(sc, IWN_DEBUG_STATS, 3421 "%s: size of rx statistics (%d) not an expected size!\n", 3422 __func__, 3423 len); 3424 memcpy(&sc->last_stat, stats, sizeof(struct iwn_stats)); 3425 sc->last_stat_valid = 1; 3426 return; 3427 } 3428 3429 /* 3430 * Ok. Time to copy. 3431 */ 3432 stats_bt = (struct iwn_stats_bt *) stats; 3433 lstats = &sc->last_stat; 3434 3435 /* flags */ 3436 lstats->flags = stats_bt->flags; 3437 /* rx_bt */ 3438 memcpy(&lstats->rx.ofdm, &stats_bt->rx_bt.ofdm, 3439 sizeof(struct iwn_rx_phy_stats)); 3440 memcpy(&lstats->rx.cck, &stats_bt->rx_bt.cck, 3441 sizeof(struct iwn_rx_phy_stats)); 3442 memcpy(&lstats->rx.general, &stats_bt->rx_bt.general_bt.common, 3443 sizeof(struct iwn_rx_general_stats)); 3444 memcpy(&lstats->rx.ht, &stats_bt->rx_bt.ht, 3445 sizeof(struct iwn_rx_ht_phy_stats)); 3446 /* tx */ 3447 memcpy(&lstats->tx, &stats_bt->tx, 3448 sizeof(struct iwn_tx_stats)); 3449 /* general */ 3450 memcpy(&lstats->general, &stats_bt->general, 3451 sizeof(struct iwn_general_stats)); 3452 3453 /* XXX TODO: Squirrel away the extra bluetooth stats somewhere */ 3454 sc->last_stat_valid = 1; 3455 } 3456 3457 /* 3458 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification. 3459 * The latter is sent by the firmware after each received beacon. 3460 */ 3461 static void 3462 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3463 { 3464 struct iwn_ops *ops = &sc->ops; 3465 struct ieee80211com *ic = &sc->sc_ic; 3466 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3467 struct iwn_calib_state *calib = &sc->calib; 3468 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 3469 struct iwn_stats *lstats; 3470 int temp; 3471 3472 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3473 3474 /* Ignore statistics received during a scan. */ 3475 if (vap->iv_state != IEEE80211_S_RUN || 3476 (ic->ic_flags & IEEE80211_F_SCAN)){ 3477 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s received during calib\n", 3478 __func__); 3479 return; 3480 } 3481 3482 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_STATS, 3483 "%s: received statistics, cmd %d, len %d\n", 3484 __func__, desc->type, le16toh(desc->len)); 3485 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */ 3486 3487 /* 3488 * Collect/track general statistics for reporting. 3489 * 3490 * This takes care of ensuring that the bluetooth sized message 3491 * will be correctly converted to the legacy sized message. 3492 */ 3493 iwn_stats_update(sc, calib, stats, le16toh(desc->len)); 3494 3495 /* 3496 * And now, let's take a reference of it to use! 3497 */ 3498 lstats = &sc->last_stat; 3499 3500 /* Test if temperature has changed. */ 3501 if (lstats->general.temp != sc->rawtemp) { 3502 /* Convert "raw" temperature to degC. */ 3503 sc->rawtemp = stats->general.temp; 3504 temp = ops->get_temperature(sc); 3505 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n", 3506 __func__, temp); 3507 3508 /* Update TX power if need be (4965AGN only). */ 3509 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 3510 iwn4965_power_calibration(sc, temp); 3511 } 3512 3513 if (desc->type != IWN_BEACON_STATISTICS) 3514 return; /* Reply to a statistics request. */ 3515 3516 sc->noise = iwn_get_noise(&lstats->rx.general); 3517 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise); 3518 3519 /* Test that RSSI and noise are present in stats report. */ 3520 if (le32toh(lstats->rx.general.flags) != 1) { 3521 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", 3522 "received statistics without RSSI"); 3523 return; 3524 } 3525 3526 if (calib->state == IWN_CALIB_STATE_ASSOC) 3527 iwn_collect_noise(sc, &lstats->rx.general); 3528 else if (calib->state == IWN_CALIB_STATE_RUN) { 3529 iwn_tune_sensitivity(sc, &lstats->rx); 3530 /* 3531 * XXX TODO: Only run the RX recovery if we're associated! 3532 */ 3533 iwn_check_rx_recovery(sc, lstats); 3534 iwn_save_stats_counters(sc, lstats); 3535 } 3536 3537 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3538 } 3539 3540 /* 3541 * Save the relevant statistic counters for the next calibration 3542 * pass. 3543 */ 3544 static void 3545 iwn_save_stats_counters(struct iwn_softc *sc, const struct iwn_stats *rs) 3546 { 3547 struct iwn_calib_state *calib = &sc->calib; 3548 3549 /* Save counters values for next call. */ 3550 calib->bad_plcp_cck = le32toh(rs->rx.cck.bad_plcp); 3551 calib->fa_cck = le32toh(rs->rx.cck.fa); 3552 calib->bad_plcp_ht = le32toh(rs->rx.ht.bad_plcp); 3553 calib->bad_plcp_ofdm = le32toh(rs->rx.ofdm.bad_plcp); 3554 calib->fa_ofdm = le32toh(rs->rx.ofdm.fa); 3555 3556 /* Last time we received these tick values */ 3557 sc->last_calib_ticks = ticks; 3558 } 3559 3560 /* 3561 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN 3562 * and 5000 adapters have different incompatible TX status formats. 3563 */ 3564 static void 3565 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 3566 struct iwn_rx_data *data) 3567 { 3568 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1); 3569 int qid = desc->qid & IWN_RX_DESC_QID_MSK; 3570 3571 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 3572 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n", 3573 __func__, desc->qid, desc->idx, 3574 stat->rtsfailcnt, 3575 stat->ackfailcnt, 3576 stat->btkillcnt, 3577 stat->rate, le16toh(stat->duration), 3578 le32toh(stat->status)); 3579 3580 if (qid >= sc->firstaggqueue && stat->nframes != 1) { 3581 iwn_ampdu_tx_done(sc, qid, stat->nframes, stat->rtsfailcnt, 3582 &stat->status); 3583 } else { 3584 iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt, 3585 le32toh(stat->status) & 0xff); 3586 } 3587 } 3588 3589 static void 3590 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 3591 struct iwn_rx_data *data) 3592 { 3593 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1); 3594 int qid = desc->qid & IWN_RX_DESC_QID_MSK; 3595 3596 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 3597 "qid %d idx %d RTS retries %d ACK retries %d nkill %d rate %x duration %d status %x\n", 3598 __func__, desc->qid, desc->idx, 3599 stat->rtsfailcnt, 3600 stat->ackfailcnt, 3601 stat->btkillcnt, 3602 stat->rate, le16toh(stat->duration), 3603 le32toh(stat->status)); 3604 3605 #ifdef notyet 3606 /* Reset TX scheduler slot. */ 3607 iwn5000_reset_sched(sc, qid, desc->idx); 3608 #endif 3609 3610 if (qid >= sc->firstaggqueue && stat->nframes != 1) { 3611 iwn_ampdu_tx_done(sc, qid, stat->nframes, stat->rtsfailcnt, 3612 &stat->status); 3613 } else { 3614 iwn_tx_done(sc, desc, stat->rtsfailcnt, stat->ackfailcnt, 3615 le16toh(stat->status) & 0xff); 3616 } 3617 } 3618 3619 static void 3620 iwn_adj_ampdu_ptr(struct iwn_softc *sc, struct iwn_tx_ring *ring) 3621 { 3622 int i; 3623 3624 for (i = ring->read; i != ring->cur; i = (i + 1) % IWN_TX_RING_COUNT) { 3625 struct iwn_tx_data *data = &ring->data[i]; 3626 3627 if (data->m != NULL) 3628 break; 3629 3630 data->remapped = 0; 3631 } 3632 3633 ring->read = i; 3634 } 3635 3636 /* 3637 * Adapter-independent backend for TX_DONE firmware notifications. 3638 */ 3639 static void 3640 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int rtsfailcnt, 3641 int ackfailcnt, uint8_t status) 3642 { 3643 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs; 3644 struct iwn_tx_ring *ring = &sc->txq[desc->qid & IWN_RX_DESC_QID_MSK]; 3645 struct iwn_tx_data *data = &ring->data[desc->idx]; 3646 struct mbuf *m; 3647 struct ieee80211_node *ni; 3648 3649 if (__predict_false(data->m == NULL && 3650 ring->qid >= sc->firstaggqueue)) { 3651 /* 3652 * There is no frame; skip this entry. 3653 */ 3654 DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: ring %d: no entry %d\n", 3655 __func__, ring->qid, desc->idx); 3656 return; 3657 } 3658 3659 KASSERT(data->ni != NULL, ("no node")); 3660 KASSERT(data->m != NULL, ("no mbuf")); 3661 3662 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3663 3664 /* Unmap and free mbuf. */ 3665 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 3666 bus_dmamap_unload(ring->data_dmat, data->map); 3667 m = data->m, data->m = NULL; 3668 ni = data->ni, data->ni = NULL; 3669 3670 data->long_retries = 0; 3671 3672 if (ring->qid >= sc->firstaggqueue) 3673 iwn_adj_ampdu_ptr(sc, ring); 3674 3675 /* 3676 * XXX f/w may hang (device timeout) when desc->idx - ring->read == 64 3677 * (aggregation queues only). 3678 */ 3679 3680 ring->queued--; 3681 iwn_check_tx_ring(sc, ring->qid); 3682 3683 /* 3684 * Update rate control statistics for the node. 3685 */ 3686 txs->flags = IEEE80211_RATECTL_STATUS_SHORT_RETRY | 3687 IEEE80211_RATECTL_STATUS_LONG_RETRY; 3688 txs->short_retries = rtsfailcnt; 3689 txs->long_retries = ackfailcnt; 3690 if (!(status & IWN_TX_FAIL)) 3691 txs->status = IEEE80211_RATECTL_TX_SUCCESS; 3692 else { 3693 switch (status) { 3694 case IWN_TX_FAIL_SHORT_LIMIT: 3695 txs->status = IEEE80211_RATECTL_TX_FAIL_SHORT; 3696 break; 3697 case IWN_TX_FAIL_LONG_LIMIT: 3698 txs->status = IEEE80211_RATECTL_TX_FAIL_LONG; 3699 break; 3700 case IWN_TX_STATUS_FAIL_LIFE_EXPIRE: 3701 txs->status = IEEE80211_RATECTL_TX_FAIL_EXPIRED; 3702 break; 3703 default: 3704 txs->status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 3705 break; 3706 } 3707 } 3708 ieee80211_ratectl_tx_complete(ni, txs); 3709 3710 /* 3711 * Channels marked for "radar" require traffic to be received 3712 * to unlock before we can transmit. Until traffic is seen 3713 * any attempt to transmit is returned immediately with status 3714 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily 3715 * happen on first authenticate after scanning. To workaround 3716 * this we ignore a failure of this sort in AUTH state so the 3717 * 802.11 layer will fall back to using a timeout to wait for 3718 * the AUTH reply. This allows the firmware time to see 3719 * traffic so a subsequent retry of AUTH succeeds. It's 3720 * unclear why the firmware does not maintain state for 3721 * channels recently visited as this would allow immediate 3722 * use of the channel after a scan (where we see traffic). 3723 */ 3724 if (status == IWN_TX_FAIL_TX_LOCKED && 3725 ni->ni_vap->iv_state == IEEE80211_S_AUTH) 3726 ieee80211_tx_complete(ni, m, 0); 3727 else 3728 ieee80211_tx_complete(ni, m, 3729 (status & IWN_TX_FAIL) != 0); 3730 3731 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3732 } 3733 3734 /* 3735 * Process a "command done" firmware notification. This is where we wakeup 3736 * processes waiting for a synchronous command completion. 3737 */ 3738 static void 3739 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc) 3740 { 3741 struct iwn_tx_ring *ring; 3742 struct iwn_tx_data *data; 3743 int cmd_queue_num; 3744 3745 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) 3746 cmd_queue_num = IWN_PAN_CMD_QUEUE; 3747 else 3748 cmd_queue_num = IWN_CMD_QUEUE_NUM; 3749 3750 if ((desc->qid & IWN_RX_DESC_QID_MSK) != cmd_queue_num) 3751 return; /* Not a command ack. */ 3752 3753 ring = &sc->txq[cmd_queue_num]; 3754 data = &ring->data[desc->idx]; 3755 3756 /* If the command was mapped in an mbuf, free it. */ 3757 if (data->m != NULL) { 3758 bus_dmamap_sync(ring->data_dmat, data->map, 3759 BUS_DMASYNC_POSTWRITE); 3760 bus_dmamap_unload(ring->data_dmat, data->map); 3761 m_freem(data->m); 3762 data->m = NULL; 3763 } 3764 wakeup(&ring->desc[desc->idx]); 3765 } 3766 3767 static int 3768 iwn_ampdu_check_bitmap(uint64_t bitmap, int start, int idx) 3769 { 3770 int bit, shift; 3771 3772 bit = idx - start; 3773 shift = 0; 3774 if (bit >= 64) { 3775 shift = 0x100 - bit; 3776 bit = 0; 3777 } else if (bit <= -64) 3778 bit = 0x100 + bit; 3779 else if (bit < 0) { 3780 shift = -bit; 3781 bit = 0; 3782 } 3783 3784 if (bit - shift >= 64) 3785 return (0); 3786 3787 return ((bitmap & (1ULL << (bit - shift))) != 0); 3788 } 3789 3790 /* 3791 * Firmware bug workaround: in case if 'retries' counter 3792 * overflows 'seqno' field will be incremented: 3793 * status|sequence|status|sequence|status|sequence 3794 * 0000 0A48 0001 0A49 0000 0A6A 3795 * 1000 0A48 1000 0A49 1000 0A6A 3796 * 2000 0A48 2000 0A49 2000 0A6A 3797 * ... 3798 * E000 0A48 E000 0A49 E000 0A6A 3799 * F000 0A48 F000 0A49 F000 0A6A 3800 * 0000 0A49 0000 0A49 0000 0A6B 3801 * 1000 0A49 1000 0A49 1000 0A6B 3802 * ... 3803 * D000 0A49 D000 0A49 D000 0A6B 3804 * E000 0A49 E001 0A49 E000 0A6B 3805 * F000 0A49 F001 0A49 F000 0A6B 3806 * 0000 0A4A 0000 0A4B 0000 0A6A 3807 * 1000 0A4A 1000 0A4B 1000 0A6A 3808 * ... 3809 * 3810 * Odd 'seqno' numbers are incremened by 2 every 2 overflows. 3811 * For even 'seqno' % 4 != 0 overflow is cyclic (0 -> +1 -> 0). 3812 * Not checked with nretries >= 64. 3813 * 3814 */ 3815 static int 3816 iwn_ampdu_index_check(struct iwn_softc *sc, struct iwn_tx_ring *ring, 3817 uint64_t bitmap, int start, int idx) 3818 { 3819 struct ieee80211com *ic = &sc->sc_ic; 3820 struct iwn_tx_data *data; 3821 int diff, min_retries, max_retries, new_idx, loop_end; 3822 3823 new_idx = idx - IWN_LONG_RETRY_LIMIT_LOG; 3824 if (new_idx < 0) 3825 new_idx += IWN_TX_RING_COUNT; 3826 3827 /* 3828 * Corner case: check if retry count is not too big; 3829 * reset device otherwise. 3830 */ 3831 if (!iwn_ampdu_check_bitmap(bitmap, start, new_idx)) { 3832 data = &ring->data[new_idx]; 3833 if (data->long_retries > IWN_LONG_RETRY_LIMIT) { 3834 device_printf(sc->sc_dev, 3835 "%s: retry count (%d) for idx %d/%d overflow, " 3836 "resetting...\n", __func__, data->long_retries, 3837 ring->qid, new_idx); 3838 ieee80211_restart_all(ic); 3839 return (-1); 3840 } 3841 } 3842 3843 /* Correct index if needed. */ 3844 loop_end = idx; 3845 do { 3846 data = &ring->data[new_idx]; 3847 diff = idx - new_idx; 3848 if (diff < 0) 3849 diff += IWN_TX_RING_COUNT; 3850 3851 min_retries = IWN_LONG_RETRY_FW_OVERFLOW * diff; 3852 if ((new_idx % 2) == 0) 3853 max_retries = IWN_LONG_RETRY_FW_OVERFLOW * (diff + 1); 3854 else 3855 max_retries = IWN_LONG_RETRY_FW_OVERFLOW * (diff + 2); 3856 3857 if (!iwn_ampdu_check_bitmap(bitmap, start, new_idx) && 3858 ((data->long_retries >= min_retries && 3859 data->long_retries < max_retries) || 3860 (diff == 1 && 3861 (new_idx & 0x03) == 0x02 && 3862 data->long_retries >= IWN_LONG_RETRY_FW_OVERFLOW))) { 3863 DPRINTF(sc, IWN_DEBUG_AMPDU, 3864 "%s: correcting index %d -> %d in queue %d" 3865 " (retries %d)\n", __func__, idx, new_idx, 3866 ring->qid, data->long_retries); 3867 return (new_idx); 3868 } 3869 3870 new_idx = (new_idx + 1) % IWN_TX_RING_COUNT; 3871 } while (new_idx != loop_end); 3872 3873 return (idx); 3874 } 3875 3876 static void 3877 iwn_ampdu_tx_done(struct iwn_softc *sc, int qid, int nframes, int rtsfailcnt, 3878 void *stat) 3879 { 3880 struct iwn_tx_ring *ring = &sc->txq[qid]; 3881 struct ieee80211_tx_ampdu *tap = sc->qid2tap[qid]; 3882 struct iwn_node *wn = (void *)tap->txa_ni; 3883 struct iwn_tx_data *data; 3884 uint64_t bitmap = 0; 3885 uint16_t *aggstatus = stat; 3886 uint8_t tid = tap->txa_tid; 3887 int bit, i, idx, shift, start, tx_err; 3888 3889 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 3890 3891 start = le16toh(*(aggstatus + nframes * 2)) & 0xff; 3892 3893 for (i = 0; i < nframes; i++) { 3894 uint16_t status = le16toh(aggstatus[i * 2]); 3895 3896 if (status & IWN_AGG_TX_STATE_IGNORE_MASK) 3897 continue; 3898 3899 idx = le16toh(aggstatus[i * 2 + 1]) & 0xff; 3900 data = &ring->data[idx]; 3901 if (data->remapped) { 3902 idx = iwn_ampdu_index_check(sc, ring, bitmap, start, idx); 3903 if (idx == -1) { 3904 /* skip error (device will be restarted anyway). */ 3905 continue; 3906 } 3907 3908 /* Index may have changed. */ 3909 data = &ring->data[idx]; 3910 } 3911 3912 /* 3913 * XXX Sometimes (rarely) some frames are excluded from events. 3914 * XXX Due to that long_retries counter may be wrong. 3915 */ 3916 data->long_retries &= ~0x0f; 3917 data->long_retries += IWN_AGG_TX_TRY_COUNT(status) + 1; 3918 3919 if (data->long_retries >= IWN_LONG_RETRY_FW_OVERFLOW) { 3920 int diff, wrong_idx; 3921 3922 diff = data->long_retries / IWN_LONG_RETRY_FW_OVERFLOW; 3923 wrong_idx = (idx + diff) % IWN_TX_RING_COUNT; 3924 3925 /* 3926 * Mark the entry so the above code will check it 3927 * next time. 3928 */ 3929 ring->data[wrong_idx].remapped = 1; 3930 } 3931 3932 if (status & IWN_AGG_TX_STATE_UNDERRUN_MSK) { 3933 /* 3934 * NB: count retries but postpone - it was not 3935 * transmitted. 3936 */ 3937 continue; 3938 } 3939 3940 bit = idx - start; 3941 shift = 0; 3942 if (bit >= 64) { 3943 shift = 0x100 - bit; 3944 bit = 0; 3945 } else if (bit <= -64) 3946 bit = 0x100 + bit; 3947 else if (bit < 0) { 3948 shift = -bit; 3949 bit = 0; 3950 } 3951 bitmap = bitmap << shift; 3952 bitmap |= 1ULL << bit; 3953 } 3954 wn->agg[tid].startidx = start; 3955 wn->agg[tid].bitmap = bitmap; 3956 wn->agg[tid].short_retries = rtsfailcnt; 3957 3958 DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: nframes %d start %d bitmap %016jX\n", 3959 __func__, nframes, start, (uintmax_t)bitmap); 3960 3961 i = ring->read; 3962 3963 for (tx_err = 0; 3964 i != wn->agg[tid].startidx; 3965 i = (i + 1) % IWN_TX_RING_COUNT) { 3966 data = &ring->data[i]; 3967 data->remapped = 0; 3968 if (data->m == NULL) 3969 continue; 3970 3971 tx_err++; 3972 iwn_agg_tx_complete(sc, ring, tid, i, 0); 3973 } 3974 3975 ring->read = wn->agg[tid].startidx; 3976 ring->queued -= tx_err; 3977 3978 iwn_check_tx_ring(sc, qid); 3979 3980 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 3981 } 3982 3983 /* 3984 * Process an INT_FH_RX or INT_SW_RX interrupt. 3985 */ 3986 static void 3987 iwn_notif_intr(struct iwn_softc *sc) 3988 { 3989 struct iwn_ops *ops = &sc->ops; 3990 struct ieee80211com *ic = &sc->sc_ic; 3991 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3992 uint16_t hw; 3993 int is_stopped; 3994 3995 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map, 3996 BUS_DMASYNC_POSTREAD); 3997 3998 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff; 3999 while (sc->rxq.cur != hw) { 4000 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 4001 struct iwn_rx_desc *desc; 4002 4003 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 4004 BUS_DMASYNC_POSTREAD); 4005 desc = mtod(data->m, struct iwn_rx_desc *); 4006 4007 DPRINTF(sc, IWN_DEBUG_RECV, 4008 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n", 4009 __func__, sc->rxq.cur, desc->qid & IWN_RX_DESC_QID_MSK, 4010 desc->idx, desc->flags, desc->type, 4011 iwn_intr_str(desc->type), le16toh(desc->len)); 4012 4013 if (!(desc->qid & IWN_UNSOLICITED_RX_NOTIF)) /* Reply to a command. */ 4014 iwn_cmd_done(sc, desc); 4015 4016 switch (desc->type) { 4017 case IWN_RX_PHY: 4018 iwn_rx_phy(sc, desc); 4019 break; 4020 4021 case IWN_RX_DONE: /* 4965AGN only. */ 4022 case IWN_MPDU_RX_DONE: 4023 /* An 802.11 frame has been received. */ 4024 iwn_rx_done(sc, desc, data); 4025 4026 is_stopped = (sc->sc_flags & IWN_FLAG_RUNNING) == 0; 4027 if (__predict_false(is_stopped)) 4028 return; 4029 4030 break; 4031 4032 case IWN_RX_COMPRESSED_BA: 4033 /* A Compressed BlockAck has been received. */ 4034 iwn_rx_compressed_ba(sc, desc); 4035 break; 4036 4037 case IWN_TX_DONE: 4038 /* An 802.11 frame has been transmitted. */ 4039 ops->tx_done(sc, desc, data); 4040 break; 4041 4042 case IWN_RX_STATISTICS: 4043 case IWN_BEACON_STATISTICS: 4044 iwn_rx_statistics(sc, desc); 4045 break; 4046 4047 case IWN_BEACON_MISSED: 4048 { 4049 struct iwn_beacon_missed *miss = 4050 (struct iwn_beacon_missed *)(desc + 1); 4051 int misses; 4052 4053 misses = le32toh(miss->consecutive); 4054 4055 DPRINTF(sc, IWN_DEBUG_STATE, 4056 "%s: beacons missed %d/%d\n", __func__, 4057 misses, le32toh(miss->total)); 4058 /* 4059 * If more than 5 consecutive beacons are missed, 4060 * reinitialize the sensitivity state machine. 4061 */ 4062 if (vap->iv_state == IEEE80211_S_RUN && 4063 (ic->ic_flags & IEEE80211_F_SCAN) == 0) { 4064 if (misses > 5) 4065 (void)iwn_init_sensitivity(sc); 4066 if (misses >= vap->iv_bmissthreshold) { 4067 IWN_UNLOCK(sc); 4068 ieee80211_beacon_miss(ic); 4069 IWN_LOCK(sc); 4070 4071 is_stopped = (sc->sc_flags & 4072 IWN_FLAG_RUNNING) == 0; 4073 if (__predict_false(is_stopped)) 4074 return; 4075 } 4076 } 4077 break; 4078 } 4079 case IWN_UC_READY: 4080 { 4081 struct iwn_ucode_info *uc = 4082 (struct iwn_ucode_info *)(desc + 1); 4083 4084 /* The microcontroller is ready. */ 4085 DPRINTF(sc, IWN_DEBUG_RESET, 4086 "microcode alive notification version=%d.%d " 4087 "subtype=%x alive=%x\n", uc->major, uc->minor, 4088 uc->subtype, le32toh(uc->valid)); 4089 4090 if (le32toh(uc->valid) != 1) { 4091 device_printf(sc->sc_dev, 4092 "microcontroller initialization failed"); 4093 break; 4094 } 4095 if (uc->subtype == IWN_UCODE_INIT) { 4096 /* Save microcontroller report. */ 4097 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 4098 } 4099 /* Save the address of the error log in SRAM. */ 4100 sc->errptr = le32toh(uc->errptr); 4101 break; 4102 } 4103 #ifdef IWN_DEBUG 4104 case IWN_STATE_CHANGED: 4105 { 4106 /* 4107 * State change allows hardware switch change to be 4108 * noted. However, we handle this in iwn_intr as we 4109 * get both the enable/disble intr. 4110 */ 4111 uint32_t *status = (uint32_t *)(desc + 1); 4112 DPRINTF(sc, IWN_DEBUG_INTR | IWN_DEBUG_STATE, 4113 "state changed to %x\n", 4114 le32toh(*status)); 4115 break; 4116 } 4117 case IWN_START_SCAN: 4118 { 4119 struct iwn_start_scan *scan = 4120 (struct iwn_start_scan *)(desc + 1); 4121 DPRINTF(sc, IWN_DEBUG_ANY, 4122 "%s: scanning channel %d status %x\n", 4123 __func__, scan->chan, le32toh(scan->status)); 4124 break; 4125 } 4126 #endif 4127 case IWN_STOP_SCAN: 4128 { 4129 #ifdef IWN_DEBUG 4130 struct iwn_stop_scan *scan = 4131 (struct iwn_stop_scan *)(desc + 1); 4132 DPRINTF(sc, IWN_DEBUG_STATE | IWN_DEBUG_SCAN, 4133 "scan finished nchan=%d status=%d chan=%d\n", 4134 scan->nchan, scan->status, scan->chan); 4135 #endif 4136 sc->sc_is_scanning = 0; 4137 callout_stop(&sc->scan_timeout); 4138 IWN_UNLOCK(sc); 4139 ieee80211_scan_next(vap); 4140 IWN_LOCK(sc); 4141 4142 is_stopped = (sc->sc_flags & IWN_FLAG_RUNNING) == 0; 4143 if (__predict_false(is_stopped)) 4144 return; 4145 4146 break; 4147 } 4148 case IWN5000_CALIBRATION_RESULT: 4149 iwn5000_rx_calib_results(sc, desc); 4150 break; 4151 4152 case IWN5000_CALIBRATION_DONE: 4153 sc->sc_flags |= IWN_FLAG_CALIB_DONE; 4154 wakeup(sc); 4155 break; 4156 } 4157 4158 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 4159 } 4160 4161 /* Tell the firmware what we have processed. */ 4162 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 4163 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7); 4164 } 4165 4166 /* 4167 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 4168 * from power-down sleep mode. 4169 */ 4170 static void 4171 iwn_wakeup_intr(struct iwn_softc *sc) 4172 { 4173 int qid; 4174 4175 DPRINTF(sc, IWN_DEBUG_RESET, "%s: ucode wakeup from power-down sleep\n", 4176 __func__); 4177 4178 /* Wakeup RX and TX rings. */ 4179 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7); 4180 for (qid = 0; qid < sc->ntxqs; qid++) { 4181 struct iwn_tx_ring *ring = &sc->txq[qid]; 4182 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur); 4183 } 4184 } 4185 4186 static void 4187 iwn_rftoggle_task(void *arg, int npending) 4188 { 4189 struct iwn_softc *sc = arg; 4190 struct ieee80211com *ic = &sc->sc_ic; 4191 uint32_t tmp; 4192 4193 IWN_LOCK(sc); 4194 tmp = IWN_READ(sc, IWN_GP_CNTRL); 4195 IWN_UNLOCK(sc); 4196 4197 device_printf(sc->sc_dev, "RF switch: radio %s\n", 4198 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled"); 4199 if (!(tmp & IWN_GP_CNTRL_RFKILL)) { 4200 ieee80211_suspend_all(ic); 4201 4202 /* Enable interrupts to get RF toggle notification. */ 4203 IWN_LOCK(sc); 4204 IWN_WRITE(sc, IWN_INT, 0xffffffff); 4205 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 4206 IWN_UNLOCK(sc); 4207 } else 4208 ieee80211_resume_all(ic); 4209 } 4210 4211 /* 4212 * Dump the error log of the firmware when a firmware panic occurs. Although 4213 * we can't debug the firmware because it is neither open source nor free, it 4214 * can help us to identify certain classes of problems. 4215 */ 4216 static void 4217 iwn_fatal_intr(struct iwn_softc *sc) 4218 { 4219 struct iwn_fw_dump dump; 4220 int i; 4221 4222 IWN_LOCK_ASSERT(sc); 4223 4224 /* Force a complete recalibration on next init. */ 4225 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE; 4226 4227 /* Check that the error log address is valid. */ 4228 if (sc->errptr < IWN_FW_DATA_BASE || 4229 sc->errptr + sizeof (dump) > 4230 IWN_FW_DATA_BASE + sc->fw_data_maxsz) { 4231 printf("%s: bad firmware error log address 0x%08x\n", __func__, 4232 sc->errptr); 4233 return; 4234 } 4235 if (iwn_nic_lock(sc) != 0) { 4236 printf("%s: could not read firmware error log\n", __func__); 4237 return; 4238 } 4239 /* Read firmware error log from SRAM. */ 4240 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump, 4241 sizeof (dump) / sizeof (uint32_t)); 4242 iwn_nic_unlock(sc); 4243 4244 if (dump.valid == 0) { 4245 printf("%s: firmware error log is empty\n", __func__); 4246 return; 4247 } 4248 printf("firmware error log:\n"); 4249 printf(" error type = \"%s\" (0x%08X)\n", 4250 (dump.id < nitems(iwn_fw_errmsg)) ? 4251 iwn_fw_errmsg[dump.id] : "UNKNOWN", 4252 dump.id); 4253 printf(" program counter = 0x%08X\n", dump.pc); 4254 printf(" source line = 0x%08X\n", dump.src_line); 4255 printf(" error data = 0x%08X%08X\n", 4256 dump.error_data[0], dump.error_data[1]); 4257 printf(" branch link = 0x%08X%08X\n", 4258 dump.branch_link[0], dump.branch_link[1]); 4259 printf(" interrupt link = 0x%08X%08X\n", 4260 dump.interrupt_link[0], dump.interrupt_link[1]); 4261 printf(" time = %u\n", dump.time[0]); 4262 4263 /* Dump driver status (TX and RX rings) while we're here. */ 4264 printf("driver status:\n"); 4265 for (i = 0; i < sc->ntxqs; i++) { 4266 struct iwn_tx_ring *ring = &sc->txq[i]; 4267 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 4268 i, ring->qid, ring->cur, ring->queued); 4269 } 4270 printf(" rx ring: cur=%d\n", sc->rxq.cur); 4271 } 4272 4273 static void 4274 iwn_intr(void *arg) 4275 { 4276 struct iwn_softc *sc = arg; 4277 uint32_t r1, r2, tmp; 4278 4279 IWN_LOCK(sc); 4280 4281 /* Disable interrupts. */ 4282 IWN_WRITE(sc, IWN_INT_MASK, 0); 4283 4284 /* Read interrupts from ICT (fast) or from registers (slow). */ 4285 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 4286 bus_dmamap_sync(sc->ict_dma.tag, sc->ict_dma.map, 4287 BUS_DMASYNC_POSTREAD); 4288 tmp = 0; 4289 while (sc->ict[sc->ict_cur] != 0) { 4290 tmp |= sc->ict[sc->ict_cur]; 4291 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */ 4292 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT; 4293 } 4294 tmp = le32toh(tmp); 4295 if (tmp == 0xffffffff) /* Shouldn't happen. */ 4296 tmp = 0; 4297 else if (tmp & 0xc0000) /* Workaround a HW bug. */ 4298 tmp |= 0x8000; 4299 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff); 4300 r2 = 0; /* Unused. */ 4301 } else { 4302 r1 = IWN_READ(sc, IWN_INT); 4303 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) { 4304 IWN_UNLOCK(sc); 4305 return; /* Hardware gone! */ 4306 } 4307 r2 = IWN_READ(sc, IWN_FH_INT); 4308 } 4309 4310 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=0x%08x reg2=0x%08x\n" 4311 , r1, r2); 4312 4313 if (r1 == 0 && r2 == 0) 4314 goto done; /* Interrupt not for us. */ 4315 4316 /* Acknowledge interrupts. */ 4317 IWN_WRITE(sc, IWN_INT, r1); 4318 if (!(sc->sc_flags & IWN_FLAG_USE_ICT)) 4319 IWN_WRITE(sc, IWN_FH_INT, r2); 4320 4321 if (r1 & IWN_INT_RF_TOGGLED) { 4322 taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task); 4323 goto done; 4324 } 4325 if (r1 & IWN_INT_CT_REACHED) { 4326 device_printf(sc->sc_dev, "%s: critical temperature reached!\n", 4327 __func__); 4328 } 4329 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) { 4330 device_printf(sc->sc_dev, "%s: fatal firmware error\n", 4331 __func__); 4332 #ifdef IWN_DEBUG 4333 iwn_debug_register(sc); 4334 #endif 4335 /* Dump firmware error log and stop. */ 4336 iwn_fatal_intr(sc); 4337 4338 taskqueue_enqueue(sc->sc_tq, &sc->sc_panic_task); 4339 goto done; 4340 } 4341 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) || 4342 (r2 & IWN_FH_INT_RX)) { 4343 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 4344 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) 4345 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX); 4346 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 4347 IWN_INT_PERIODIC_DIS); 4348 iwn_notif_intr(sc); 4349 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) { 4350 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 4351 IWN_INT_PERIODIC_ENA); 4352 } 4353 } else 4354 iwn_notif_intr(sc); 4355 } 4356 4357 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) { 4358 if (sc->sc_flags & IWN_FLAG_USE_ICT) 4359 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX); 4360 wakeup(sc); /* FH DMA transfer completed. */ 4361 } 4362 4363 if (r1 & IWN_INT_ALIVE) 4364 wakeup(sc); /* Firmware is alive. */ 4365 4366 if (r1 & IWN_INT_WAKEUP) 4367 iwn_wakeup_intr(sc); 4368 4369 done: 4370 /* Re-enable interrupts. */ 4371 if (sc->sc_flags & IWN_FLAG_RUNNING) 4372 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 4373 4374 IWN_UNLOCK(sc); 4375 } 4376 4377 /* 4378 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and 4379 * 5000 adapters use a slightly different format). 4380 */ 4381 static void 4382 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 4383 uint16_t len) 4384 { 4385 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx]; 4386 4387 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4388 4389 *w = htole16(len + 8); 4390 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4391 BUS_DMASYNC_PREWRITE); 4392 if (idx < IWN_SCHED_WINSZ) { 4393 *(w + IWN_TX_RING_COUNT) = *w; 4394 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4395 BUS_DMASYNC_PREWRITE); 4396 } 4397 } 4398 4399 static void 4400 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 4401 uint16_t len) 4402 { 4403 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 4404 4405 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4406 4407 *w = htole16(id << 12 | (len + 8)); 4408 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4409 BUS_DMASYNC_PREWRITE); 4410 if (idx < IWN_SCHED_WINSZ) { 4411 *(w + IWN_TX_RING_COUNT) = *w; 4412 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4413 BUS_DMASYNC_PREWRITE); 4414 } 4415 } 4416 4417 #ifdef notyet 4418 static void 4419 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx) 4420 { 4421 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 4422 4423 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 4424 4425 *w = (*w & htole16(0xf000)) | htole16(1); 4426 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4427 BUS_DMASYNC_PREWRITE); 4428 if (idx < IWN_SCHED_WINSZ) { 4429 *(w + IWN_TX_RING_COUNT) = *w; 4430 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map, 4431 BUS_DMASYNC_PREWRITE); 4432 } 4433 } 4434 #endif 4435 4436 /* 4437 * Check whether OFDM 11g protection will be enabled for the given rate. 4438 * 4439 * The original driver code only enabled protection for OFDM rates. 4440 * It didn't check to see whether it was operating in 11a or 11bg mode. 4441 */ 4442 static int 4443 iwn_check_rate_needs_protection(struct iwn_softc *sc, 4444 struct ieee80211vap *vap, uint8_t rate) 4445 { 4446 struct ieee80211com *ic = vap->iv_ic; 4447 4448 /* 4449 * Not in 2GHz mode? Then there's no need to enable OFDM 4450 * 11bg protection. 4451 */ 4452 if (! IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 4453 return (0); 4454 } 4455 4456 /* 4457 * 11bg protection not enabled? Then don't use it. 4458 */ 4459 if ((ic->ic_flags & IEEE80211_F_USEPROT) == 0) 4460 return (0); 4461 4462 /* 4463 * If it's an 11n rate - no protection. 4464 * We'll do it via a specific 11n check. 4465 */ 4466 if (rate & IEEE80211_RATE_MCS) { 4467 return (0); 4468 } 4469 4470 /* 4471 * Do a rate table lookup. If the PHY is CCK, 4472 * don't do protection. 4473 */ 4474 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_CCK) 4475 return (0); 4476 4477 /* 4478 * Yup, enable protection. 4479 */ 4480 return (1); 4481 } 4482 4483 /* 4484 * return a value between 0 and IWN_MAX_TX_RETRIES-1 as an index into 4485 * the link quality table that reflects this particular entry. 4486 */ 4487 static int 4488 iwn_tx_rate_to_linkq_offset(struct iwn_softc *sc, struct ieee80211_node *ni, 4489 uint8_t rate) 4490 { 4491 struct ieee80211_rateset *rs; 4492 int is_11n; 4493 int nr; 4494 int i; 4495 uint8_t cmp_rate; 4496 4497 /* 4498 * Figure out if we're using 11n or not here. 4499 */ 4500 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && ni->ni_htrates.rs_nrates > 0) 4501 is_11n = 1; 4502 else 4503 is_11n = 0; 4504 4505 /* 4506 * Use the correct rate table. 4507 */ 4508 if (is_11n) { 4509 rs = (struct ieee80211_rateset *) &ni->ni_htrates; 4510 nr = ni->ni_htrates.rs_nrates; 4511 } else { 4512 rs = &ni->ni_rates; 4513 nr = rs->rs_nrates; 4514 } 4515 4516 /* 4517 * Find the relevant link quality entry in the table. 4518 */ 4519 for (i = 0; i < nr && i < IWN_MAX_TX_RETRIES - 1 ; i++) { 4520 /* 4521 * The link quality table index starts at 0 == highest 4522 * rate, so we walk the rate table backwards. 4523 */ 4524 cmp_rate = rs->rs_rates[(nr - 1) - i]; 4525 if (rate & IEEE80211_RATE_MCS) 4526 cmp_rate |= IEEE80211_RATE_MCS; 4527 4528 #if 0 4529 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: idx %d: nr=%d, rate=0x%02x, rateentry=0x%02x\n", 4530 __func__, 4531 i, 4532 nr, 4533 rate, 4534 cmp_rate); 4535 #endif 4536 4537 if (cmp_rate == rate) 4538 return (i); 4539 } 4540 4541 /* Failed? Start at the end */ 4542 return (IWN_MAX_TX_RETRIES - 1); 4543 } 4544 4545 static int 4546 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 4547 { 4548 const struct ieee80211_txparam *tp = ni->ni_txparms; 4549 struct ieee80211vap *vap = ni->ni_vap; 4550 struct ieee80211com *ic = ni->ni_ic; 4551 struct iwn_node *wn = (void *)ni; 4552 struct iwn_tx_ring *ring; 4553 struct iwn_tx_cmd *cmd; 4554 struct iwn_cmd_data *tx; 4555 struct ieee80211_frame *wh; 4556 struct ieee80211_key *k = NULL; 4557 uint32_t flags; 4558 uint16_t qos; 4559 uint8_t tid, type; 4560 int ac, totlen, rate; 4561 4562 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 4563 4564 IWN_LOCK_ASSERT(sc); 4565 4566 wh = mtod(m, struct ieee80211_frame *); 4567 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 4568 4569 /* Select EDCA Access Category and TX ring for this frame. */ 4570 if (IEEE80211_QOS_HAS_SEQ(wh)) { 4571 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 4572 tid = qos & IEEE80211_QOS_TID; 4573 } else { 4574 qos = 0; 4575 tid = 0; 4576 } 4577 4578 /* Choose a TX rate index. */ 4579 if (type == IEEE80211_FC0_TYPE_MGT || 4580 type == IEEE80211_FC0_TYPE_CTL || 4581 (m->m_flags & M_EAPOL) != 0) 4582 rate = tp->mgmtrate; 4583 else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 4584 rate = tp->mcastrate; 4585 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 4586 rate = tp->ucastrate; 4587 else { 4588 /* XXX pass pktlen */ 4589 (void) ieee80211_ratectl_rate(ni, NULL, 0); 4590 rate = ni->ni_txrate; 4591 } 4592 4593 /* 4594 * XXX TODO: Group addressed frames aren't aggregated and must 4595 * go to the normal non-aggregation queue, and have a NONQOS TID 4596 * assigned from net80211. 4597 */ 4598 4599 ac = M_WME_GETAC(m); 4600 if (m->m_flags & M_AMPDU_MPDU) { 4601 struct ieee80211_tx_ampdu *tap = &ni->ni_tx_ampdu[ac]; 4602 4603 if (!IEEE80211_AMPDU_RUNNING(tap)) 4604 return (EINVAL); 4605 4606 ac = *(int *)tap->txa_private; 4607 } 4608 4609 /* Encrypt the frame if need be. */ 4610 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 4611 /* Retrieve key for TX. */ 4612 k = ieee80211_crypto_encap(ni, m); 4613 if (k == NULL) { 4614 return ENOBUFS; 4615 } 4616 /* 802.11 header may have moved. */ 4617 wh = mtod(m, struct ieee80211_frame *); 4618 } 4619 totlen = m->m_pkthdr.len; 4620 4621 if (ieee80211_radiotap_active_vap(vap)) { 4622 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 4623 4624 tap->wt_flags = 0; 4625 tap->wt_rate = rate; 4626 if (k != NULL) 4627 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 4628 4629 ieee80211_radiotap_tx(vap, m); 4630 } 4631 4632 flags = 0; 4633 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 4634 /* Unicast frame, check if an ACK is expected. */ 4635 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 4636 IEEE80211_QOS_ACKPOLICY_NOACK) 4637 flags |= IWN_TX_NEED_ACK; 4638 } 4639 if ((wh->i_fc[0] & 4640 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 4641 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR)) 4642 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */ 4643 4644 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 4645 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */ 4646 4647 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 4648 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 4649 /* NB: Group frames are sent using CCK in 802.11b/g. */ 4650 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 4651 flags |= IWN_TX_NEED_RTS; 4652 } else if (iwn_check_rate_needs_protection(sc, vap, rate)) { 4653 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 4654 flags |= IWN_TX_NEED_CTS; 4655 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 4656 flags |= IWN_TX_NEED_RTS; 4657 } else if ((rate & IEEE80211_RATE_MCS) && 4658 (ic->ic_htprotmode == IEEE80211_PROT_RTSCTS)) { 4659 flags |= IWN_TX_NEED_RTS; 4660 } 4661 4662 /* XXX HT protection? */ 4663 4664 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) { 4665 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4666 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4667 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS); 4668 flags |= IWN_TX_NEED_PROTECTION; 4669 } else 4670 flags |= IWN_TX_FULL_TXOP; 4671 } 4672 } 4673 4674 ring = &sc->txq[ac]; 4675 if (m->m_flags & M_AMPDU_MPDU) { 4676 uint16_t seqno = ni->ni_txseqs[tid]; 4677 4678 if (ring->queued > IWN_TX_RING_COUNT / 2 && 4679 (ring->cur + 1) % IWN_TX_RING_COUNT == ring->read) { 4680 DPRINTF(sc, IWN_DEBUG_AMPDU, "%s: no more space " 4681 "(queued %d) left in %d queue!\n", 4682 __func__, ring->queued, ac); 4683 return (ENOBUFS); 4684 } 4685 4686 /* 4687 * Queue this frame to the hardware ring that we've 4688 * negotiated AMPDU TX on. 4689 * 4690 * Note that the sequence number must match the TX slot 4691 * being used! 4692 */ 4693 if ((seqno % 256) != ring->cur) { 4694 device_printf(sc->sc_dev, 4695 "%s: m=%p: seqno (%d) (%d) != ring index (%d) !\n", 4696 __func__, 4697 m, 4698 seqno, 4699 seqno % 256, 4700 ring->cur); 4701 4702 /* XXX until D9195 will not be committed */ 4703 ni->ni_txseqs[tid] &= ~0xff; 4704 ni->ni_txseqs[tid] += ring->cur; 4705 seqno = ni->ni_txseqs[tid]; 4706 } 4707 4708 *(uint16_t *)wh->i_seq = 4709 htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT); 4710 ni->ni_txseqs[tid]++; 4711 } 4712 4713 /* Prepare TX firmware command. */ 4714 cmd = &ring->cmd[ring->cur]; 4715 tx = (struct iwn_cmd_data *)cmd->data; 4716 4717 /* NB: No need to clear tx, all fields are reinitialized here. */ 4718 tx->scratch = 0; /* clear "scratch" area */ 4719 4720 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 4721 type != IEEE80211_FC0_TYPE_DATA) 4722 tx->id = sc->broadcast_id; 4723 else 4724 tx->id = wn->id; 4725 4726 if (type == IEEE80211_FC0_TYPE_MGT) { 4727 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 4728 4729 /* Tell HW to set timestamp in probe responses. */ 4730 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 4731 flags |= IWN_TX_INSERT_TSTAMP; 4732 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 4733 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 4734 tx->timeout = htole16(3); 4735 else 4736 tx->timeout = htole16(2); 4737 } else 4738 tx->timeout = htole16(0); 4739 4740 if (tx->id == sc->broadcast_id) { 4741 /* Group or management frame. */ 4742 tx->linkq = 0; 4743 } else { 4744 tx->linkq = iwn_tx_rate_to_linkq_offset(sc, ni, rate); 4745 flags |= IWN_TX_LINKQ; /* enable MRR */ 4746 } 4747 4748 tx->tid = tid; 4749 tx->rts_ntries = 60; 4750 tx->data_ntries = 15; 4751 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4752 tx->rate = iwn_rate_to_plcp(sc, ni, rate); 4753 tx->security = 0; 4754 tx->flags = htole32(flags); 4755 4756 return (iwn_tx_cmd(sc, m, ni, ring)); 4757 } 4758 4759 static int 4760 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m, 4761 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 4762 { 4763 struct ieee80211vap *vap = ni->ni_vap; 4764 struct iwn_tx_cmd *cmd; 4765 struct iwn_cmd_data *tx; 4766 struct ieee80211_frame *wh; 4767 struct iwn_tx_ring *ring; 4768 uint32_t flags; 4769 int ac, rate; 4770 uint8_t type; 4771 4772 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 4773 4774 IWN_LOCK_ASSERT(sc); 4775 4776 wh = mtod(m, struct ieee80211_frame *); 4777 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 4778 4779 ac = params->ibp_pri & 3; 4780 4781 /* Choose a TX rate. */ 4782 rate = params->ibp_rate0; 4783 4784 flags = 0; 4785 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 4786 flags |= IWN_TX_NEED_ACK; 4787 if (params->ibp_flags & IEEE80211_BPF_RTS) { 4788 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4789 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4790 flags &= ~IWN_TX_NEED_RTS; 4791 flags |= IWN_TX_NEED_PROTECTION; 4792 } else 4793 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 4794 } 4795 if (params->ibp_flags & IEEE80211_BPF_CTS) { 4796 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4797 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 4798 flags &= ~IWN_TX_NEED_CTS; 4799 flags |= IWN_TX_NEED_PROTECTION; 4800 } else 4801 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 4802 } 4803 4804 if (ieee80211_radiotap_active_vap(vap)) { 4805 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 4806 4807 tap->wt_flags = 0; 4808 tap->wt_rate = rate; 4809 4810 ieee80211_radiotap_tx(vap, m); 4811 } 4812 4813 ring = &sc->txq[ac]; 4814 cmd = &ring->cmd[ring->cur]; 4815 4816 tx = (struct iwn_cmd_data *)cmd->data; 4817 /* NB: No need to clear tx, all fields are reinitialized here. */ 4818 tx->scratch = 0; /* clear "scratch" area */ 4819 4820 if (type == IEEE80211_FC0_TYPE_MGT) { 4821 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 4822 4823 /* Tell HW to set timestamp in probe responses. */ 4824 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 4825 flags |= IWN_TX_INSERT_TSTAMP; 4826 4827 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 4828 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 4829 tx->timeout = htole16(3); 4830 else 4831 tx->timeout = htole16(2); 4832 } else 4833 tx->timeout = htole16(0); 4834 4835 tx->tid = 0; 4836 tx->id = sc->broadcast_id; 4837 tx->rts_ntries = params->ibp_try1; 4838 tx->data_ntries = params->ibp_try0; 4839 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4840 tx->rate = iwn_rate_to_plcp(sc, ni, rate); 4841 tx->security = 0; 4842 tx->flags = htole32(flags); 4843 4844 /* Group or management frame. */ 4845 tx->linkq = 0; 4846 4847 return (iwn_tx_cmd(sc, m, ni, ring)); 4848 } 4849 4850 static int 4851 iwn_tx_cmd(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, 4852 struct iwn_tx_ring *ring) 4853 { 4854 struct iwn_ops *ops = &sc->ops; 4855 struct iwn_tx_cmd *cmd; 4856 struct iwn_cmd_data *tx; 4857 struct ieee80211_frame *wh; 4858 struct iwn_tx_desc *desc; 4859 struct iwn_tx_data *data; 4860 bus_dma_segment_t *seg, segs[IWN_MAX_SCATTER]; 4861 struct mbuf *m1; 4862 u_int hdrlen; 4863 int totlen, error, pad, nsegs = 0, i; 4864 4865 wh = mtod(m, struct ieee80211_frame *); 4866 hdrlen = ieee80211_anyhdrsize(wh); 4867 totlen = m->m_pkthdr.len; 4868 4869 desc = &ring->desc[ring->cur]; 4870 data = &ring->data[ring->cur]; 4871 4872 if (__predict_false(data->m != NULL || data->ni != NULL)) { 4873 device_printf(sc->sc_dev, "%s: ni (%p) or m (%p) for idx %d " 4874 "in queue %d is not NULL!\n", __func__, data->ni, data->m, 4875 ring->cur, ring->qid); 4876 return EIO; 4877 } 4878 4879 /* Prepare TX firmware command. */ 4880 cmd = &ring->cmd[ring->cur]; 4881 cmd->code = IWN_CMD_TX_DATA; 4882 cmd->flags = 0; 4883 cmd->qid = ring->qid; 4884 cmd->idx = ring->cur; 4885 4886 tx = (struct iwn_cmd_data *)cmd->data; 4887 tx->len = htole16(totlen); 4888 4889 /* Set physical address of "scratch area". */ 4890 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 4891 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 4892 if (hdrlen & 3) { 4893 /* First segment length must be a multiple of 4. */ 4894 tx->flags |= htole32(IWN_TX_NEED_PADDING); 4895 pad = 4 - (hdrlen & 3); 4896 } else 4897 pad = 0; 4898 4899 /* Copy 802.11 header in TX command. */ 4900 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 4901 4902 /* Trim 802.11 header. */ 4903 m_adj(m, hdrlen); 4904 4905 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, segs, 4906 &nsegs, BUS_DMA_NOWAIT); 4907 if (error != 0) { 4908 if (error != EFBIG) { 4909 device_printf(sc->sc_dev, 4910 "%s: can't map mbuf (error %d)\n", __func__, error); 4911 return error; 4912 } 4913 /* Too many DMA segments, linearize mbuf. */ 4914 m1 = m_collapse(m, M_NOWAIT, IWN_MAX_SCATTER - 1); 4915 if (m1 == NULL) { 4916 device_printf(sc->sc_dev, 4917 "%s: could not defrag mbuf\n", __func__); 4918 return ENOBUFS; 4919 } 4920 m = m1; 4921 4922 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m, 4923 segs, &nsegs, BUS_DMA_NOWAIT); 4924 if (error != 0) { 4925 /* XXX fix this */ 4926 /* 4927 * NB: Do not return error; 4928 * original mbuf does not exist anymore. 4929 */ 4930 device_printf(sc->sc_dev, 4931 "%s: can't map mbuf (error %d)\n", 4932 __func__, error); 4933 if_inc_counter(ni->ni_vap->iv_ifp, 4934 IFCOUNTER_OERRORS, 1); 4935 ieee80211_free_node(ni); 4936 m_freem(m); 4937 return 0; 4938 } 4939 } 4940 4941 data->m = m; 4942 data->ni = ni; 4943 4944 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d " 4945 "plcp %d\n", 4946 __func__, ring->qid, ring->cur, totlen, nsegs, tx->rate); 4947 4948 /* Fill TX descriptor. */ 4949 desc->nsegs = 1; 4950 if (m->m_len != 0) 4951 desc->nsegs += nsegs; 4952 /* First DMA segment is used by the TX command. */ 4953 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 4954 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 4955 (4 + sizeof (*tx) + hdrlen + pad) << 4); 4956 /* Other DMA segments are for data payload. */ 4957 seg = &segs[0]; 4958 for (i = 1; i <= nsegs; i++) { 4959 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 4960 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 4961 seg->ds_len << 4); 4962 seg++; 4963 } 4964 4965 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 4966 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map, 4967 BUS_DMASYNC_PREWRITE); 4968 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 4969 BUS_DMASYNC_PREWRITE); 4970 4971 /* Update TX scheduler. */ 4972 if (ring->qid >= sc->firstaggqueue) 4973 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 4974 4975 /* Kick TX ring. */ 4976 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 4977 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 4978 4979 /* Mark TX ring as full if we reach a certain threshold. */ 4980 if (++ring->queued > IWN_TX_RING_HIMARK) 4981 sc->qfullmsk |= 1 << ring->qid; 4982 4983 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n",__func__); 4984 4985 return 0; 4986 } 4987 4988 static void 4989 iwn_xmit_task(void *arg0, int pending) 4990 { 4991 struct iwn_softc *sc = arg0; 4992 struct ieee80211_node *ni; 4993 struct mbuf *m; 4994 int error; 4995 struct ieee80211_bpf_params p; 4996 int have_p; 4997 4998 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: called\n", __func__); 4999 5000 IWN_LOCK(sc); 5001 /* 5002 * Dequeue frames, attempt to transmit, 5003 * then disable beaconwait when we're done. 5004 */ 5005 while ((m = mbufq_dequeue(&sc->sc_xmit_queue)) != NULL) { 5006 have_p = 0; 5007 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 5008 5009 /* Get xmit params if appropriate */ 5010 if (ieee80211_get_xmit_params(m, &p) == 0) 5011 have_p = 1; 5012 5013 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: m=%p, have_p=%d\n", 5014 __func__, m, have_p); 5015 5016 /* If we have xmit params, use them */ 5017 if (have_p) 5018 error = iwn_tx_data_raw(sc, m, ni, &p); 5019 else 5020 error = iwn_tx_data(sc, m, ni); 5021 5022 if (error != 0) { 5023 if_inc_counter(ni->ni_vap->iv_ifp, 5024 IFCOUNTER_OERRORS, 1); 5025 ieee80211_free_node(ni); 5026 m_freem(m); 5027 } 5028 } 5029 5030 sc->sc_beacon_wait = 0; 5031 IWN_UNLOCK(sc); 5032 } 5033 5034 /* 5035 * raw frame xmit - free node/reference if failed. 5036 */ 5037 static int 5038 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 5039 const struct ieee80211_bpf_params *params) 5040 { 5041 struct ieee80211com *ic = ni->ni_ic; 5042 struct iwn_softc *sc = ic->ic_softc; 5043 int error = 0; 5044 5045 DPRINTF(sc, IWN_DEBUG_XMIT | IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5046 5047 IWN_LOCK(sc); 5048 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0) { 5049 m_freem(m); 5050 IWN_UNLOCK(sc); 5051 return (ENETDOWN); 5052 } 5053 5054 /* queue frame if we have to */ 5055 if (sc->sc_beacon_wait) { 5056 if (iwn_xmit_queue_enqueue(sc, m) != 0) { 5057 m_freem(m); 5058 IWN_UNLOCK(sc); 5059 return (ENOBUFS); 5060 } 5061 /* Queued, so just return OK */ 5062 IWN_UNLOCK(sc); 5063 return (0); 5064 } 5065 5066 if (params == NULL) { 5067 /* 5068 * Legacy path; interpret frame contents to decide 5069 * precisely how to send the frame. 5070 */ 5071 error = iwn_tx_data(sc, m, ni); 5072 } else { 5073 /* 5074 * Caller supplied explicit parameters to use in 5075 * sending the frame. 5076 */ 5077 error = iwn_tx_data_raw(sc, m, ni, params); 5078 } 5079 if (error == 0) 5080 sc->sc_tx_timer = 5; 5081 else 5082 m_freem(m); 5083 5084 IWN_UNLOCK(sc); 5085 5086 DPRINTF(sc, IWN_DEBUG_TRACE | IWN_DEBUG_XMIT, "->%s: end\n",__func__); 5087 5088 return (error); 5089 } 5090 5091 /* 5092 * transmit - don't free mbuf if failed; don't free node ref if failed. 5093 */ 5094 static int 5095 iwn_transmit(struct ieee80211com *ic, struct mbuf *m) 5096 { 5097 struct iwn_softc *sc = ic->ic_softc; 5098 struct ieee80211_node *ni; 5099 int error; 5100 5101 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 5102 5103 IWN_LOCK(sc); 5104 if ((sc->sc_flags & IWN_FLAG_RUNNING) == 0 || sc->sc_beacon_wait) { 5105 IWN_UNLOCK(sc); 5106 return (ENXIO); 5107 } 5108 5109 if (sc->qfullmsk) { 5110 IWN_UNLOCK(sc); 5111 return (ENOBUFS); 5112 } 5113 5114 error = iwn_tx_data(sc, m, ni); 5115 if (!error) 5116 sc->sc_tx_timer = 5; 5117 IWN_UNLOCK(sc); 5118 return (error); 5119 } 5120 5121 static void 5122 iwn_scan_timeout(void *arg) 5123 { 5124 struct iwn_softc *sc = arg; 5125 struct ieee80211com *ic = &sc->sc_ic; 5126 5127 ic_printf(ic, "scan timeout\n"); 5128 ieee80211_restart_all(ic); 5129 } 5130 5131 static void 5132 iwn_watchdog(void *arg) 5133 { 5134 struct iwn_softc *sc = arg; 5135 struct ieee80211com *ic = &sc->sc_ic; 5136 5137 IWN_LOCK_ASSERT(sc); 5138 5139 KASSERT(sc->sc_flags & IWN_FLAG_RUNNING, ("not running")); 5140 5141 DPRINTF(sc, IWN_DEBUG_TRACE, "->Doing %s\n", __func__); 5142 5143 if (sc->sc_tx_timer > 0) { 5144 if (--sc->sc_tx_timer == 0) { 5145 ic_printf(ic, "device timeout\n"); 5146 ieee80211_restart_all(ic); 5147 return; 5148 } 5149 } 5150 callout_reset(&sc->watchdog_to, hz, iwn_watchdog, sc); 5151 } 5152 5153 static int 5154 iwn_cdev_open(struct cdev *dev, int flags, int type, struct thread *td) 5155 { 5156 5157 return (0); 5158 } 5159 5160 static int 5161 iwn_cdev_close(struct cdev *dev, int flags, int type, struct thread *td) 5162 { 5163 5164 return (0); 5165 } 5166 5167 static int 5168 iwn_cdev_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag, 5169 struct thread *td) 5170 { 5171 int rc; 5172 struct iwn_softc *sc = dev->si_drv1; 5173 struct iwn_ioctl_data *d; 5174 5175 rc = priv_check(td, PRIV_DRIVER); 5176 if (rc != 0) 5177 return (0); 5178 5179 switch (cmd) { 5180 case SIOCGIWNSTATS: 5181 d = (struct iwn_ioctl_data *) data; 5182 IWN_LOCK(sc); 5183 /* XXX validate permissions/memory/etc? */ 5184 rc = copyout(&sc->last_stat, d->dst_addr, sizeof(struct iwn_stats)); 5185 IWN_UNLOCK(sc); 5186 break; 5187 case SIOCZIWNSTATS: 5188 IWN_LOCK(sc); 5189 memset(&sc->last_stat, 0, sizeof(struct iwn_stats)); 5190 IWN_UNLOCK(sc); 5191 break; 5192 default: 5193 rc = EINVAL; 5194 break; 5195 } 5196 return (rc); 5197 } 5198 5199 static int 5200 iwn_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 5201 { 5202 5203 return (ENOTTY); 5204 } 5205 5206 static void 5207 iwn_parent(struct ieee80211com *ic) 5208 { 5209 struct iwn_softc *sc = ic->ic_softc; 5210 struct ieee80211vap *vap; 5211 int error; 5212 5213 if (ic->ic_nrunning > 0) { 5214 error = iwn_init(sc); 5215 5216 switch (error) { 5217 case 0: 5218 ieee80211_start_all(ic); 5219 break; 5220 case 1: 5221 /* radio is disabled via RFkill switch */ 5222 taskqueue_enqueue(sc->sc_tq, &sc->sc_rftoggle_task); 5223 break; 5224 default: 5225 vap = TAILQ_FIRST(&ic->ic_vaps); 5226 if (vap != NULL) 5227 ieee80211_stop(vap); 5228 break; 5229 } 5230 } else 5231 iwn_stop(sc); 5232 } 5233 5234 /* 5235 * Send a command to the firmware. 5236 */ 5237 static int 5238 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 5239 { 5240 struct iwn_tx_ring *ring; 5241 struct iwn_tx_desc *desc; 5242 struct iwn_tx_data *data; 5243 struct iwn_tx_cmd *cmd; 5244 struct mbuf *m; 5245 bus_addr_t paddr; 5246 int totlen, error; 5247 int cmd_queue_num; 5248 5249 DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__); 5250 5251 if (async == 0) 5252 IWN_LOCK_ASSERT(sc); 5253 5254 if (sc->sc_flags & IWN_FLAG_PAN_SUPPORT) 5255 cmd_queue_num = IWN_PAN_CMD_QUEUE; 5256 else 5257 cmd_queue_num = IWN_CMD_QUEUE_NUM; 5258 5259 ring = &sc->txq[cmd_queue_num]; 5260 desc = &ring->desc[ring->cur]; 5261 data = &ring->data[ring->cur]; 5262 totlen = 4 + size; 5263 5264 if (size > sizeof cmd->data) { 5265 /* Command is too large to fit in a descriptor. */ 5266 if (totlen > MCLBYTES) 5267 return EINVAL; 5268 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 5269 if (m == NULL) 5270 return ENOMEM; 5271 cmd = mtod(m, struct iwn_tx_cmd *); 5272 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, 5273 totlen, iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 5274 if (error != 0) { 5275 m_freem(m); 5276 return error; 5277 } 5278 data->m = m; 5279 } else { 5280 cmd = &ring->cmd[ring->cur]; 5281 paddr = data->cmd_paddr; 5282 } 5283 5284 cmd->code = code; 5285 cmd->flags = 0; 5286 cmd->qid = ring->qid; 5287 cmd->idx = ring->cur; 5288 memcpy(cmd->data, buf, size); 5289 5290 desc->nsegs = 1; 5291 desc->segs[0].addr = htole32(IWN_LOADDR(paddr)); 5292 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4); 5293 5294