1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
27 ***********************************************************************
29 * This file is provided under a dual BSD/GPLv2 license. When using or
30 * redistributing this file, you may do so under either license.
34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
36 * This program is free software; you can redistribute it and/or modify
37 * it under the terms of version 2 of the GNU General Public License as
38 * published by the Free Software Foundation.
40 * This program is distributed in the hope that it will be useful, but
41 * WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
43 * General Public License for more details.
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
53 * Contact Information:
54 * Intel Linux Wireless <ilw@linux.intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
61 * All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * * Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 * * Redistributions in binary form must reproduce the above copyright
70 * notice, this list of conditions and the following disclaimer in
71 * the documentation and/or other materials provided with the
73 * * Neither the name Intel Corporation nor the names of its
74 * contributors may be used to endorse or promote products derived
75 * from this software without specific prior written permission.
77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
91 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
93 * Permission to use, copy, modify, and distribute this software for any
94 * purpose with or without fee is hereby granted, provided that the above
95 * copyright notice and this permission notice appear in all copies.
97 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
98 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
99 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
100 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
101 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
102 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
103 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
105 #include <sys/cdefs.h>
106 __FBSDID("$FreeBSD$");
108 #include <sys/param.h>
110 #include <sys/conf.h>
111 #include <sys/endian.h>
112 #include <sys/firmware.h>
113 #include <sys/kernel.h>
114 #include <sys/malloc.h>
115 #include <sys/mbuf.h>
116 #include <sys/mutex.h>
117 #include <sys/module.h>
118 #include <sys/proc.h>
119 #include <sys/rman.h>
120 #include <sys/socket.h>
121 #include <sys/sockio.h>
122 #include <sys/sysctl.h>
123 #include <sys/linker.h>
125 #include <machine/bus.h>
126 #include <machine/endian.h>
127 #include <machine/resource.h>
129 #include <dev/pci/pcivar.h>
130 #include <dev/pci/pcireg.h>
135 #include <net/if_var.h>
136 #include <net/if_arp.h>
137 #include <net/if_dl.h>
138 #include <net/if_media.h>
139 #include <net/if_types.h>
141 #include <netinet/in.h>
142 #include <netinet/in_systm.h>
143 #include <netinet/if_ether.h>
144 #include <netinet/ip.h>
146 #include <net80211/ieee80211_var.h>
147 #include <net80211/ieee80211_regdomain.h>
148 #include <net80211/ieee80211_ratectl.h>
149 #include <net80211/ieee80211_radiotap.h>
151 #include <dev/iwm/if_iwmreg.h>
152 #include <dev/iwm/if_iwmvar.h>
153 #include <dev/iwm/if_iwm_debug.h>
154 #include <dev/iwm/if_iwm_util.h>
155 #include <dev/iwm/if_iwm_binding.h>
156 #include <dev/iwm/if_iwm_phy_db.h>
157 #include <dev/iwm/if_iwm_mac_ctxt.h>
158 #include <dev/iwm/if_iwm_phy_ctxt.h>
159 #include <dev/iwm/if_iwm_time_event.h>
160 #include <dev/iwm/if_iwm_power.h>
161 #include <dev/iwm/if_iwm_scan.h>
163 #include <dev/iwm/if_iwm_pcie_trans.h>
165 const uint8_t iwm_nvm_channels[] = {
167 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
169 36, 40, 44 , 48, 52, 56, 60, 64,
170 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
171 149, 153, 157, 161, 165
173 #define IWM_NUM_2GHZ_CHANNELS 14
176 * XXX For now, there's simply a fixed set of rate table entries
177 * that are populated.
179 const struct iwm_rate {
183 { 2, IWM_RATE_1M_PLCP },
184 { 4, IWM_RATE_2M_PLCP },
185 { 11, IWM_RATE_5M_PLCP },
186 { 22, IWM_RATE_11M_PLCP },
187 { 12, IWM_RATE_6M_PLCP },
188 { 18, IWM_RATE_9M_PLCP },
189 { 24, IWM_RATE_12M_PLCP },
190 { 36, IWM_RATE_18M_PLCP },
191 { 48, IWM_RATE_24M_PLCP },
192 { 72, IWM_RATE_36M_PLCP },
193 { 96, IWM_RATE_48M_PLCP },
194 { 108, IWM_RATE_54M_PLCP },
196 #define IWM_RIDX_CCK 0
197 #define IWM_RIDX_OFDM 4
198 #define IWM_RIDX_MAX (nitems(iwm_rates)-1)
199 #define IWM_RIDX_IS_CCK(_i_) ((_i_) < IWM_RIDX_OFDM)
200 #define IWM_RIDX_IS_OFDM(_i_) ((_i_) >= IWM_RIDX_OFDM)
202 static int iwm_store_cscheme(struct iwm_softc *, const uint8_t *, size_t);
203 static int iwm_firmware_store_section(struct iwm_softc *,
205 const uint8_t *, size_t);
206 static int iwm_set_default_calib(struct iwm_softc *, const void *);
207 static void iwm_fw_info_free(struct iwm_fw_info *);
208 static int iwm_read_firmware(struct iwm_softc *, enum iwm_ucode_type);
209 static void iwm_dma_map_addr(void *, bus_dma_segment_t *, int, int);
210 static int iwm_dma_contig_alloc(bus_dma_tag_t, struct iwm_dma_info *,
211 bus_size_t, bus_size_t);
212 static void iwm_dma_contig_free(struct iwm_dma_info *);
213 static int iwm_alloc_fwmem(struct iwm_softc *);
214 static void iwm_free_fwmem(struct iwm_softc *);
215 static int iwm_alloc_sched(struct iwm_softc *);
216 static void iwm_free_sched(struct iwm_softc *);
217 static int iwm_alloc_kw(struct iwm_softc *);
218 static void iwm_free_kw(struct iwm_softc *);
219 static int iwm_alloc_ict(struct iwm_softc *);
220 static void iwm_free_ict(struct iwm_softc *);
221 static int iwm_alloc_rx_ring(struct iwm_softc *, struct iwm_rx_ring *);
222 static void iwm_reset_rx_ring(struct iwm_softc *, struct iwm_rx_ring *);
223 static void iwm_free_rx_ring(struct iwm_softc *, struct iwm_rx_ring *);
224 static int iwm_alloc_tx_ring(struct iwm_softc *, struct iwm_tx_ring *,
226 static void iwm_reset_tx_ring(struct iwm_softc *, struct iwm_tx_ring *);
227 static void iwm_free_tx_ring(struct iwm_softc *, struct iwm_tx_ring *);
228 static void iwm_enable_interrupts(struct iwm_softc *);
229 static void iwm_restore_interrupts(struct iwm_softc *);
230 static void iwm_disable_interrupts(struct iwm_softc *);
231 static void iwm_ict_reset(struct iwm_softc *);
232 static int iwm_allow_mcast(struct ieee80211vap *, struct iwm_softc *);
233 static void iwm_stop_device(struct iwm_softc *);
234 static void iwm_mvm_nic_config(struct iwm_softc *);
235 static int iwm_nic_rx_init(struct iwm_softc *);
236 static int iwm_nic_tx_init(struct iwm_softc *);
237 static int iwm_nic_init(struct iwm_softc *);
238 static void iwm_enable_txq(struct iwm_softc *, int, int);
239 static int iwm_post_alive(struct iwm_softc *);
240 static int iwm_nvm_read_chunk(struct iwm_softc *, uint16_t, uint16_t,
241 uint16_t, uint8_t *, uint16_t *);
242 static int iwm_nvm_read_section(struct iwm_softc *, uint16_t, uint8_t *,
244 static void iwm_init_channel_map(struct iwm_softc *,
245 const uint16_t * const);
246 static int iwm_parse_nvm_data(struct iwm_softc *, const uint16_t *,
247 const uint16_t *, const uint16_t *, uint8_t,
249 struct iwm_nvm_section;
250 static int iwm_parse_nvm_sections(struct iwm_softc *,
251 struct iwm_nvm_section *);
252 static int iwm_nvm_init(struct iwm_softc *);
253 static int iwm_firmware_load_chunk(struct iwm_softc *, uint32_t,
254 const uint8_t *, uint32_t);
255 static int iwm_load_firmware(struct iwm_softc *, enum iwm_ucode_type);
256 static int iwm_start_fw(struct iwm_softc *, enum iwm_ucode_type);
257 static int iwm_fw_alive(struct iwm_softc *, uint32_t);
258 static int iwm_send_tx_ant_cfg(struct iwm_softc *, uint8_t);
259 static int iwm_send_phy_cfg_cmd(struct iwm_softc *);
260 static int iwm_mvm_load_ucode_wait_alive(struct iwm_softc *,
261 enum iwm_ucode_type);
262 static int iwm_run_init_mvm_ucode(struct iwm_softc *, int);
263 static int iwm_rx_addbuf(struct iwm_softc *, int, int);
264 static int iwm_mvm_calc_rssi(struct iwm_softc *, struct iwm_rx_phy_info *);
265 static int iwm_mvm_get_signal_strength(struct iwm_softc *,
266 struct iwm_rx_phy_info *);
267 static void iwm_mvm_rx_rx_phy_cmd(struct iwm_softc *,
268 struct iwm_rx_packet *,
269 struct iwm_rx_data *);
270 static int iwm_get_noise(const struct iwm_mvm_statistics_rx_non_phy *);
271 static void iwm_mvm_rx_rx_mpdu(struct iwm_softc *, struct iwm_rx_packet *,
272 struct iwm_rx_data *);
273 static int iwm_mvm_rx_tx_cmd_single(struct iwm_softc *,
274 struct iwm_rx_packet *,
276 static void iwm_mvm_rx_tx_cmd(struct iwm_softc *, struct iwm_rx_packet *,
277 struct iwm_rx_data *);
278 static void iwm_cmd_done(struct iwm_softc *, struct iwm_rx_packet *);
280 static void iwm_update_sched(struct iwm_softc *, int, int, uint8_t,
283 static const struct iwm_rate *
284 iwm_tx_fill_cmd(struct iwm_softc *, struct iwm_node *,
285 struct ieee80211_frame *, struct iwm_tx_cmd *);
286 static int iwm_tx(struct iwm_softc *, struct mbuf *,
287 struct ieee80211_node *, int);
288 static int iwm_raw_xmit(struct ieee80211_node *, struct mbuf *,
289 const struct ieee80211_bpf_params *);
290 static void iwm_mvm_add_sta_cmd_v6_to_v5(struct iwm_mvm_add_sta_cmd_v6 *,
291 struct iwm_mvm_add_sta_cmd_v5 *);
292 static int iwm_mvm_send_add_sta_cmd_status(struct iwm_softc *,
293 struct iwm_mvm_add_sta_cmd_v6 *,
295 static int iwm_mvm_sta_send_to_fw(struct iwm_softc *, struct iwm_node *,
297 static int iwm_mvm_add_sta(struct iwm_softc *, struct iwm_node *);
298 static int iwm_mvm_update_sta(struct iwm_softc *, struct iwm_node *);
299 static int iwm_mvm_add_int_sta_common(struct iwm_softc *,
300 struct iwm_int_sta *,
301 const uint8_t *, uint16_t, uint16_t);
302 static int iwm_mvm_add_aux_sta(struct iwm_softc *);
303 static int iwm_mvm_update_quotas(struct iwm_softc *, struct iwm_node *);
304 static int iwm_auth(struct ieee80211vap *, struct iwm_softc *);
305 static int iwm_assoc(struct ieee80211vap *, struct iwm_softc *);
306 static int iwm_release(struct iwm_softc *, struct iwm_node *);
307 static struct ieee80211_node *
308 iwm_node_alloc(struct ieee80211vap *,
309 const uint8_t[IEEE80211_ADDR_LEN]);
310 static void iwm_setrates(struct iwm_softc *, struct iwm_node *);
311 static int iwm_media_change(struct ifnet *);
312 static int iwm_newstate(struct ieee80211vap *, enum ieee80211_state, int);
313 static void iwm_endscan_cb(void *, int);
314 static int iwm_init_hw(struct iwm_softc *);
315 static void iwm_init(struct iwm_softc *);
316 static void iwm_start(struct iwm_softc *);
317 static void iwm_stop(struct iwm_softc *);
318 static void iwm_watchdog(void *);
319 static void iwm_parent(struct ieee80211com *);
322 iwm_desc_lookup(uint32_t);
323 static void iwm_nic_error(struct iwm_softc *);
325 static void iwm_notif_intr(struct iwm_softc *);
326 static void iwm_intr(void *);
327 static int iwm_attach(device_t);
328 static void iwm_preinit(void *);
329 static int iwm_detach_local(struct iwm_softc *sc, int);
330 static void iwm_init_task(void *);
331 static void iwm_radiotap_attach(struct iwm_softc *);
332 static struct ieee80211vap *
333 iwm_vap_create(struct ieee80211com *,
334 const char [IFNAMSIZ], int,
335 enum ieee80211_opmode, int,
336 const uint8_t [IEEE80211_ADDR_LEN],
337 const uint8_t [IEEE80211_ADDR_LEN]);
338 static void iwm_vap_delete(struct ieee80211vap *);
339 static void iwm_scan_start(struct ieee80211com *);
340 static void iwm_scan_end(struct ieee80211com *);
341 static void iwm_update_mcast(struct ieee80211com *);
342 static void iwm_set_channel(struct ieee80211com *);
343 static void iwm_scan_curchan(struct ieee80211_scan_state *, unsigned long);
344 static void iwm_scan_mindwell(struct ieee80211_scan_state *);
345 static int iwm_detach(device_t);
352 iwm_store_cscheme(struct iwm_softc *sc, const uint8_t *data, size_t dlen)
354 const struct iwm_fw_cscheme_list *l = (const void *)data;
356 if (dlen < sizeof(*l) ||
357 dlen < sizeof(l->size) + l->size * sizeof(*l->cs))
360 /* we don't actually store anything for now, always use s/w crypto */
366 iwm_firmware_store_section(struct iwm_softc *sc,
367 enum iwm_ucode_type type, const uint8_t *data, size_t dlen)
369 struct iwm_fw_sects *fws;
370 struct iwm_fw_onesect *fwone;
372 if (type >= IWM_UCODE_TYPE_MAX)
374 if (dlen < sizeof(uint32_t))
377 fws = &sc->sc_fw.fw_sects[type];
378 if (fws->fw_count >= IWM_UCODE_SECT_MAX)
381 fwone = &fws->fw_sect[fws->fw_count];
383 /* first 32bit are device load offset */
384 memcpy(&fwone->fws_devoff, data, sizeof(uint32_t));
387 fwone->fws_data = data + sizeof(uint32_t);
388 fwone->fws_len = dlen - sizeof(uint32_t);
391 fws->fw_totlen += fwone->fws_len;
396 /* iwlwifi: iwl-drv.c */
397 struct iwm_tlv_calib_data {
399 struct iwm_tlv_calib_ctrl calib;
403 iwm_set_default_calib(struct iwm_softc *sc, const void *data)
405 const struct iwm_tlv_calib_data *def_calib = data;
406 uint32_t ucode_type = le32toh(def_calib->ucode_type);
408 if (ucode_type >= IWM_UCODE_TYPE_MAX) {
409 device_printf(sc->sc_dev,
410 "Wrong ucode_type %u for default "
411 "calibration.\n", ucode_type);
415 sc->sc_default_calib[ucode_type].flow_trigger =
416 def_calib->calib.flow_trigger;
417 sc->sc_default_calib[ucode_type].event_trigger =
418 def_calib->calib.event_trigger;
424 iwm_fw_info_free(struct iwm_fw_info *fw)
426 firmware_put(fw->fw_fp, FIRMWARE_UNLOAD);
428 /* don't touch fw->fw_status */
429 memset(fw->fw_sects, 0, sizeof(fw->fw_sects));
433 iwm_read_firmware(struct iwm_softc *sc, enum iwm_ucode_type ucode_type)
435 struct iwm_fw_info *fw = &sc->sc_fw;
436 const struct iwm_tlv_ucode_header *uhdr;
437 struct iwm_ucode_tlv tlv;
438 enum iwm_ucode_tlv_type tlv_type;
439 const struct firmware *fwp;
444 if (fw->fw_status == IWM_FW_STATUS_DONE &&
445 ucode_type != IWM_UCODE_TYPE_INIT)
448 while (fw->fw_status == IWM_FW_STATUS_INPROGRESS)
449 msleep(&sc->sc_fw, &sc->sc_mtx, 0, "iwmfwp", 0);
450 fw->fw_status = IWM_FW_STATUS_INPROGRESS;
452 if (fw->fw_fp != NULL)
453 iwm_fw_info_free(fw);
456 * Load firmware into driver memory.
460 fwp = firmware_get(sc->sc_fwname);
463 device_printf(sc->sc_dev,
464 "could not read firmware %s (error %d)\n",
465 sc->sc_fwname, error);
471 * Parse firmware contents
474 uhdr = (const void *)fw->fw_fp->data;
475 if (*(const uint32_t *)fw->fw_fp->data != 0
476 || le32toh(uhdr->magic) != IWM_TLV_UCODE_MAGIC) {
477 device_printf(sc->sc_dev, "invalid firmware %s\n",
483 sc->sc_fwver = le32toh(uhdr->ver);
485 len = fw->fw_fp->datasize - sizeof(*uhdr);
487 while (len >= sizeof(tlv)) {
489 const void *tlv_data;
491 memcpy(&tlv, data, sizeof(tlv));
492 tlv_len = le32toh(tlv.length);
493 tlv_type = le32toh(tlv.type);
500 device_printf(sc->sc_dev,
501 "firmware too short: %zu bytes\n",
507 switch ((int)tlv_type) {
508 case IWM_UCODE_TLV_PROBE_MAX_LEN:
509 if (tlv_len < sizeof(uint32_t)) {
510 device_printf(sc->sc_dev,
511 "%s: PROBE_MAX_LEN (%d) < sizeof(uint32_t)\n",
517 sc->sc_capa_max_probe_len
518 = le32toh(*(const uint32_t *)tlv_data);
519 /* limit it to something sensible */
520 if (sc->sc_capa_max_probe_len > (1<<16)) {
521 IWM_DPRINTF(sc, IWM_DEBUG_FIRMWARE_TLV,
522 "%s: IWM_UCODE_TLV_PROBE_MAX_LEN "
523 "ridiculous\n", __func__);
528 case IWM_UCODE_TLV_PAN:
530 device_printf(sc->sc_dev,
531 "%s: IWM_UCODE_TLV_PAN: tlv_len (%d) > 0\n",
537 sc->sc_capaflags |= IWM_UCODE_TLV_FLAGS_PAN;
539 case IWM_UCODE_TLV_FLAGS:
540 if (tlv_len < sizeof(uint32_t)) {
541 device_printf(sc->sc_dev,
542 "%s: IWM_UCODE_TLV_FLAGS: tlv_len (%d) < sizeof(uint32_t)\n",
549 * Apparently there can be many flags, but Linux driver
550 * parses only the first one, and so do we.
552 * XXX: why does this override IWM_UCODE_TLV_PAN?
553 * Intentional or a bug? Observations from
554 * current firmware file:
555 * 1) TLV_PAN is parsed first
556 * 2) TLV_FLAGS contains TLV_FLAGS_PAN
557 * ==> this resets TLV_PAN to itself... hnnnk
559 sc->sc_capaflags = le32toh(*(const uint32_t *)tlv_data);
561 case IWM_UCODE_TLV_CSCHEME:
562 if ((error = iwm_store_cscheme(sc,
563 tlv_data, tlv_len)) != 0) {
564 device_printf(sc->sc_dev,
565 "%s: iwm_store_cscheme(): returned %d\n",
571 case IWM_UCODE_TLV_NUM_OF_CPU:
572 if (tlv_len != sizeof(uint32_t)) {
573 device_printf(sc->sc_dev,
574 "%s: IWM_UCODE_TLV_NUM_OF_CPU: tlv_len (%d) < sizeof(uint32_t)\n",
580 if (le32toh(*(const uint32_t*)tlv_data) != 1) {
581 device_printf(sc->sc_dev,
582 "%s: driver supports "
583 "only TLV_NUM_OF_CPU == 1",
589 case IWM_UCODE_TLV_SEC_RT:
590 if ((error = iwm_firmware_store_section(sc,
591 IWM_UCODE_TYPE_REGULAR, tlv_data, tlv_len)) != 0) {
592 device_printf(sc->sc_dev,
593 "%s: IWM_UCODE_TYPE_REGULAR: iwm_firmware_store_section() failed; %d\n",
599 case IWM_UCODE_TLV_SEC_INIT:
600 if ((error = iwm_firmware_store_section(sc,
601 IWM_UCODE_TYPE_INIT, tlv_data, tlv_len)) != 0) {
602 device_printf(sc->sc_dev,
603 "%s: IWM_UCODE_TYPE_INIT: iwm_firmware_store_section() failed; %d\n",
609 case IWM_UCODE_TLV_SEC_WOWLAN:
610 if ((error = iwm_firmware_store_section(sc,
611 IWM_UCODE_TYPE_WOW, tlv_data, tlv_len)) != 0) {
612 device_printf(sc->sc_dev,
613 "%s: IWM_UCODE_TYPE_WOW: iwm_firmware_store_section() failed; %d\n",
619 case IWM_UCODE_TLV_DEF_CALIB:
620 if (tlv_len != sizeof(struct iwm_tlv_calib_data)) {
621 device_printf(sc->sc_dev,
622 "%s: IWM_UCODE_TLV_DEV_CALIB: tlv_len (%d) < sizeof(iwm_tlv_calib_data) (%d)\n",
625 (int) sizeof(struct iwm_tlv_calib_data));
629 if ((error = iwm_set_default_calib(sc, tlv_data)) != 0) {
630 device_printf(sc->sc_dev,
631 "%s: iwm_set_default_calib() failed: %d\n",
637 case IWM_UCODE_TLV_PHY_SKU:
638 if (tlv_len != sizeof(uint32_t)) {
640 device_printf(sc->sc_dev,
641 "%s: IWM_UCODE_TLV_PHY_SKU: tlv_len (%d) < sizeof(uint32_t)\n",
646 sc->sc_fw_phy_config =
647 le32toh(*(const uint32_t *)tlv_data);
650 case IWM_UCODE_TLV_API_CHANGES_SET:
651 case IWM_UCODE_TLV_ENABLED_CAPABILITIES:
652 /* ignore, not used by current driver */
656 device_printf(sc->sc_dev,
657 "%s: unknown firmware section %d, abort\n",
663 len -= roundup(tlv_len, 4);
664 data += roundup(tlv_len, 4);
667 KASSERT(error == 0, ("unhandled error"));
671 device_printf(sc->sc_dev, "firmware parse error %d, "
672 "section type %d\n", error, tlv_type);
675 if (!(sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
676 device_printf(sc->sc_dev,
677 "device uses unsupported power ops\n");
683 fw->fw_status = IWM_FW_STATUS_NONE;
684 if (fw->fw_fp != NULL)
685 iwm_fw_info_free(fw);
687 fw->fw_status = IWM_FW_STATUS_DONE;
694 * DMA resource routines
698 iwm_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
702 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
703 *(bus_addr_t *)arg = segs[0].ds_addr;
707 iwm_dma_contig_alloc(bus_dma_tag_t tag, struct iwm_dma_info *dma,
708 bus_size_t size, bus_size_t alignment)
715 error = bus_dma_tag_create(tag, alignment,
716 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
717 1, size, 0, NULL, NULL, &dma->tag);
721 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
722 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
726 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
727 iwm_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
731 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
735 fail: iwm_dma_contig_free(dma);
740 iwm_dma_contig_free(struct iwm_dma_info *dma)
742 if (dma->map != NULL) {
743 if (dma->vaddr != NULL) {
744 bus_dmamap_sync(dma->tag, dma->map,
745 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
746 bus_dmamap_unload(dma->tag, dma->map);
747 bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
750 bus_dmamap_destroy(dma->tag, dma->map);
753 if (dma->tag != NULL) {
754 bus_dma_tag_destroy(dma->tag);
760 /* fwmem is used to load firmware onto the card */
762 iwm_alloc_fwmem(struct iwm_softc *sc)
764 /* Must be aligned on a 16-byte boundary. */
765 return iwm_dma_contig_alloc(sc->sc_dmat, &sc->fw_dma,
766 sc->sc_fwdmasegsz, 16);
770 iwm_free_fwmem(struct iwm_softc *sc)
772 iwm_dma_contig_free(&sc->fw_dma);
775 /* tx scheduler rings. not used? */
777 iwm_alloc_sched(struct iwm_softc *sc)
781 /* TX scheduler rings must be aligned on a 1KB boundary. */
782 rv = iwm_dma_contig_alloc(sc->sc_dmat, &sc->sched_dma,
783 nitems(sc->txq) * sizeof(struct iwm_agn_scd_bc_tbl), 1024);
788 iwm_free_sched(struct iwm_softc *sc)
790 iwm_dma_contig_free(&sc->sched_dma);
793 /* keep-warm page is used internally by the card. see iwl-fh.h for more info */
795 iwm_alloc_kw(struct iwm_softc *sc)
797 return iwm_dma_contig_alloc(sc->sc_dmat, &sc->kw_dma, 4096, 4096);
801 iwm_free_kw(struct iwm_softc *sc)
803 iwm_dma_contig_free(&sc->kw_dma);
806 /* interrupt cause table */
808 iwm_alloc_ict(struct iwm_softc *sc)
810 return iwm_dma_contig_alloc(sc->sc_dmat, &sc->ict_dma,
811 IWM_ICT_SIZE, 1<<IWM_ICT_PADDR_SHIFT);
815 iwm_free_ict(struct iwm_softc *sc)
817 iwm_dma_contig_free(&sc->ict_dma);
821 iwm_alloc_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring)
828 /* Allocate RX descriptors (256-byte aligned). */
829 size = IWM_RX_RING_COUNT * sizeof(uint32_t);
830 error = iwm_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, size, 256);
832 device_printf(sc->sc_dev,
833 "could not allocate RX ring DMA memory\n");
836 ring->desc = ring->desc_dma.vaddr;
838 /* Allocate RX status area (16-byte aligned). */
839 error = iwm_dma_contig_alloc(sc->sc_dmat, &ring->stat_dma,
840 sizeof(*ring->stat), 16);
842 device_printf(sc->sc_dev,
843 "could not allocate RX status DMA memory\n");
846 ring->stat = ring->stat_dma.vaddr;
848 /* Create RX buffer DMA tag. */
849 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
850 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
851 IWM_RBUF_SIZE, 1, IWM_RBUF_SIZE, 0, NULL, NULL, &ring->data_dmat);
853 device_printf(sc->sc_dev,
854 "%s: could not create RX buf DMA tag, error %d\n",
860 * Allocate and map RX buffers.
862 for (i = 0; i < IWM_RX_RING_COUNT; i++) {
863 if ((error = iwm_rx_addbuf(sc, IWM_RBUF_SIZE, i)) != 0) {
869 fail: iwm_free_rx_ring(sc, ring);
874 iwm_reset_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring)
877 /* XXX print out if we can't lock the NIC? */
878 if (iwm_nic_lock(sc)) {
879 /* XXX handle if RX stop doesn't finish? */
880 (void) iwm_pcie_rx_stop(sc);
883 /* Reset the ring state */
885 memset(sc->rxq.stat, 0, sizeof(*sc->rxq.stat));
889 iwm_free_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring)
893 iwm_dma_contig_free(&ring->desc_dma);
894 iwm_dma_contig_free(&ring->stat_dma);
896 for (i = 0; i < IWM_RX_RING_COUNT; i++) {
897 struct iwm_rx_data *data = &ring->data[i];
899 if (data->m != NULL) {
900 bus_dmamap_sync(ring->data_dmat, data->map,
901 BUS_DMASYNC_POSTREAD);
902 bus_dmamap_unload(ring->data_dmat, data->map);
906 if (data->map != NULL) {
907 bus_dmamap_destroy(ring->data_dmat, data->map);
911 if (ring->data_dmat != NULL) {
912 bus_dma_tag_destroy(ring->data_dmat);
913 ring->data_dmat = NULL;
918 iwm_alloc_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring, int qid)
928 /* Allocate TX descriptors (256-byte aligned). */
929 size = IWM_TX_RING_COUNT * sizeof (struct iwm_tfd);
930 error = iwm_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, size, 256);
932 device_printf(sc->sc_dev,
933 "could not allocate TX ring DMA memory\n");
936 ring->desc = ring->desc_dma.vaddr;
939 * We only use rings 0 through 9 (4 EDCA + cmd) so there is no need
940 * to allocate commands space for other rings.
942 if (qid > IWM_MVM_CMD_QUEUE)
945 size = IWM_TX_RING_COUNT * sizeof(struct iwm_device_cmd);
946 error = iwm_dma_contig_alloc(sc->sc_dmat, &ring->cmd_dma, size, 4);
948 device_printf(sc->sc_dev,
949 "could not allocate TX cmd DMA memory\n");
952 ring->cmd = ring->cmd_dma.vaddr;
954 error = bus_dma_tag_create(sc->sc_dmat, 1, 0,
955 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
956 IWM_MAX_SCATTER - 2, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
958 device_printf(sc->sc_dev, "could not create TX buf DMA tag\n");
962 paddr = ring->cmd_dma.paddr;
963 for (i = 0; i < IWM_TX_RING_COUNT; i++) {
964 struct iwm_tx_data *data = &ring->data[i];
966 data->cmd_paddr = paddr;
967 data->scratch_paddr = paddr + sizeof(struct iwm_cmd_header)
968 + offsetof(struct iwm_tx_cmd, scratch);
969 paddr += sizeof(struct iwm_device_cmd);
971 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
973 device_printf(sc->sc_dev,
974 "could not create TX buf DMA map\n");
978 KASSERT(paddr == ring->cmd_dma.paddr + size,
979 ("invalid physical address"));
982 fail: iwm_free_tx_ring(sc, ring);
987 iwm_reset_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring)
991 for (i = 0; i < IWM_TX_RING_COUNT; i++) {
992 struct iwm_tx_data *data = &ring->data[i];
994 if (data->m != NULL) {
995 bus_dmamap_sync(ring->data_dmat, data->map,
996 BUS_DMASYNC_POSTWRITE);
997 bus_dmamap_unload(ring->data_dmat, data->map);
1002 /* Clear TX descriptors. */
1003 memset(ring->desc, 0, ring->desc_dma.size);
1004 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1005 BUS_DMASYNC_PREWRITE);
1006 sc->qfullmsk &= ~(1 << ring->qid);
1012 iwm_free_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring)
1016 iwm_dma_contig_free(&ring->desc_dma);
1017 iwm_dma_contig_free(&ring->cmd_dma);
1019 for (i = 0; i < IWM_TX_RING_COUNT; i++) {
1020 struct iwm_tx_data *data = &ring->data[i];
1022 if (data->m != NULL) {
1023 bus_dmamap_sync(ring->data_dmat, data->map,
1024 BUS_DMASYNC_POSTWRITE);
1025 bus_dmamap_unload(ring->data_dmat, data->map);
1029 if (data->map != NULL) {
1030 bus_dmamap_destroy(ring->data_dmat, data->map);
1034 if (ring->data_dmat != NULL) {
1035 bus_dma_tag_destroy(ring->data_dmat);
1036 ring->data_dmat = NULL;
1041 * High-level hardware frobbing routines
1045 iwm_enable_interrupts(struct iwm_softc *sc)
1047 sc->sc_intmask = IWM_CSR_INI_SET_MASK;
1048 IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask);
1052 iwm_restore_interrupts(struct iwm_softc *sc)
1054 IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask);
1058 iwm_disable_interrupts(struct iwm_softc *sc)
1060 /* disable interrupts */
1061 IWM_WRITE(sc, IWM_CSR_INT_MASK, 0);
1063 /* acknowledge all interrupts */
1064 IWM_WRITE(sc, IWM_CSR_INT, ~0);
1065 IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, ~0);
1069 iwm_ict_reset(struct iwm_softc *sc)
1071 iwm_disable_interrupts(sc);
1073 /* Reset ICT table. */
1074 memset(sc->ict_dma.vaddr, 0, IWM_ICT_SIZE);
1077 /* Set physical address of ICT table (4KB aligned). */
1078 IWM_WRITE(sc, IWM_CSR_DRAM_INT_TBL_REG,
1079 IWM_CSR_DRAM_INT_TBL_ENABLE
1080 | IWM_CSR_DRAM_INIT_TBL_WRAP_CHECK
1081 | sc->ict_dma.paddr >> IWM_ICT_PADDR_SHIFT);
1083 /* Switch to ICT interrupt mode in driver. */
1084 sc->sc_flags |= IWM_FLAG_USE_ICT;
1086 /* Re-enable interrupts. */
1087 IWM_WRITE(sc, IWM_CSR_INT, ~0);
1088 iwm_enable_interrupts(sc);
1091 /* iwlwifi pcie/trans.c */
1094 * Since this .. hard-resets things, it's time to actually
1095 * mark the first vap (if any) as having no mac context.
1096 * It's annoying, but since the driver is potentially being
1097 * stop/start'ed whilst active (thanks openbsd port!) we
1098 * have to correctly track this.
1101 iwm_stop_device(struct iwm_softc *sc)
1103 struct ieee80211com *ic = &sc->sc_ic;
1104 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1108 /* tell the device to stop sending interrupts */
1109 iwm_disable_interrupts(sc);
1112 * FreeBSD-local: mark the first vap as not-uploaded,
1113 * so the next transition through auth/assoc
1114 * will correctly populate the MAC context.
1117 struct iwm_vap *iv = IWM_VAP(vap);
1118 iv->is_uploaded = 0;
1121 /* device going down, Stop using ICT table */
1122 sc->sc_flags &= ~IWM_FLAG_USE_ICT;
1124 /* stop tx and rx. tx and rx bits, as usual, are from if_iwn */
1126 iwm_write_prph(sc, IWM_SCD_TXFACT, 0);
1128 /* Stop all DMA channels. */
1129 if (iwm_nic_lock(sc)) {
1130 for (chnl = 0; chnl < IWM_FH_TCSR_CHNL_NUM; chnl++) {
1132 IWM_FH_TCSR_CHNL_TX_CONFIG_REG(chnl), 0);
1133 for (ntries = 0; ntries < 200; ntries++) {
1136 r = IWM_READ(sc, IWM_FH_TSSR_TX_STATUS_REG);
1137 if (r & IWM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(
1147 iwm_reset_rx_ring(sc, &sc->rxq);
1149 /* Reset all TX rings. */
1150 for (qid = 0; qid < nitems(sc->txq); qid++)
1151 iwm_reset_tx_ring(sc, &sc->txq[qid]);
1154 * Power-down device's busmaster DMA clocks
1156 iwm_write_prph(sc, IWM_APMG_CLK_DIS_REG, IWM_APMG_CLK_VAL_DMA_CLK_RQT);
1159 /* Make sure (redundant) we've released our request to stay awake */
1160 IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL,
1161 IWM_CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
1163 /* Stop the device, and put it in low power state */
1166 /* Upon stop, the APM issues an interrupt if HW RF kill is set.
1167 * Clean again the interrupt here
1169 iwm_disable_interrupts(sc);
1170 /* stop and reset the on-board processor */
1171 IWM_WRITE(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_NEVO_RESET);
1174 * Even if we stop the HW, we still want the RF kill
1177 iwm_enable_rfkill_int(sc);
1178 iwm_check_rfkill(sc);
1181 /* iwlwifi: mvm/ops.c */
1183 iwm_mvm_nic_config(struct iwm_softc *sc)
1185 uint8_t radio_cfg_type, radio_cfg_step, radio_cfg_dash;
1186 uint32_t reg_val = 0;
1188 radio_cfg_type = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_TYPE) >>
1189 IWM_FW_PHY_CFG_RADIO_TYPE_POS;
1190 radio_cfg_step = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_STEP) >>
1191 IWM_FW_PHY_CFG_RADIO_STEP_POS;
1192 radio_cfg_dash = (sc->sc_fw_phy_config & IWM_FW_PHY_CFG_RADIO_DASH) >>
1193 IWM_FW_PHY_CFG_RADIO_DASH_POS;
1196 reg_val |= IWM_CSR_HW_REV_STEP(sc->sc_hw_rev) <<
1197 IWM_CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
1198 reg_val |= IWM_CSR_HW_REV_DASH(sc->sc_hw_rev) <<
1199 IWM_CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
1201 /* radio configuration */
1202 reg_val |= radio_cfg_type << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
1203 reg_val |= radio_cfg_step << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
1204 reg_val |= radio_cfg_dash << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
1206 IWM_WRITE(sc, IWM_CSR_HW_IF_CONFIG_REG, reg_val);
1208 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
1209 "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
1210 radio_cfg_step, radio_cfg_dash);
1213 * W/A : NIC is stuck in a reset state after Early PCIe power off
1214 * (PCIe power is lost before PERST# is asserted), causing ME FW
1215 * to lose ownership and not being able to obtain it back.
1217 iwm_set_bits_mask_prph(sc, IWM_APMG_PS_CTRL_REG,
1218 IWM_APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
1219 ~IWM_APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
1223 iwm_nic_rx_init(struct iwm_softc *sc)
1225 if (!iwm_nic_lock(sc))
1229 * Initialize RX ring. This is from the iwn driver.
1231 memset(sc->rxq.stat, 0, sizeof(*sc->rxq.stat));
1234 IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
1235 IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_RBDCB_WPTR, 0);
1236 IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_FLUSH_RB_REQ, 0);
1237 IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_RDPTR, 0);
1238 IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
1240 /* Set physical address of RX ring (256-byte aligned). */
1242 IWM_FH_RSCSR_CHNL0_RBDCB_BASE_REG, sc->rxq.desc_dma.paddr >> 8);
1244 /* Set physical address of RX status (16-byte aligned). */
1246 IWM_FH_RSCSR_CHNL0_STTS_WPTR_REG, sc->rxq.stat_dma.paddr >> 4);
1250 * Note: Linux driver also sets this:
1251 * (IWM_RX_RB_TIMEOUT << IWM_FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS) |
1253 * It causes weird behavior. YMMV.
1255 IWM_WRITE(sc, IWM_FH_MEM_RCSR_CHNL0_CONFIG_REG,
1256 IWM_FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
1257 IWM_FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY | /* HW bug */
1258 IWM_FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
1259 IWM_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K |
1260 IWM_RX_QUEUE_SIZE_LOG << IWM_FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS);
1262 IWM_WRITE_1(sc, IWM_CSR_INT_COALESCING, IWM_HOST_INT_TIMEOUT_DEF);
1264 /* W/A for interrupt coalescing bug in 7260 and 3160 */
1265 if (sc->host_interrupt_operation_mode)
1266 IWM_SETBITS(sc, IWM_CSR_INT_COALESCING, IWM_HOST_INT_OPER_MODE);
1269 * Thus sayeth el jefe (iwlwifi) via a comment:
1271 * This value should initially be 0 (before preparing any
1272 * RBs), should be 8 after preparing the first 8 RBs (for example)
1274 IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_WPTR, 8);
1282 iwm_nic_tx_init(struct iwm_softc *sc)
1286 if (!iwm_nic_lock(sc))
1289 /* Deactivate TX scheduler. */
1290 iwm_write_prph(sc, IWM_SCD_TXFACT, 0);
1292 /* Set physical address of "keep warm" page (16-byte aligned). */
1293 IWM_WRITE(sc, IWM_FH_KW_MEM_ADDR_REG, sc->kw_dma.paddr >> 4);
1295 /* Initialize TX rings. */
1296 for (qid = 0; qid < nitems(sc->txq); qid++) {
1297 struct iwm_tx_ring *txq = &sc->txq[qid];
1299 /* Set physical address of TX ring (256-byte aligned). */
1300 IWM_WRITE(sc, IWM_FH_MEM_CBBC_QUEUE(qid),
1301 txq->desc_dma.paddr >> 8);
1302 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
1303 "%s: loading ring %d descriptors (%p) at %lx\n",
1306 (unsigned long) (txq->desc_dma.paddr >> 8));
1314 iwm_nic_init(struct iwm_softc *sc)
1321 iwm_mvm_nic_config(sc);
1323 if ((error = iwm_nic_rx_init(sc)) != 0)
1327 * Ditto for TX, from iwn
1329 if ((error = iwm_nic_tx_init(sc)) != 0)
1332 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
1333 "%s: shadow registers enabled\n", __func__);
1334 IWM_SETBITS(sc, IWM_CSR_MAC_SHADOW_REG_CTRL, 0x800fffff);
1339 enum iwm_mvm_tx_fifo {
1340 IWM_MVM_TX_FIFO_BK = 0,
1344 IWM_MVM_TX_FIFO_MCAST = 5,
1347 const uint8_t iwm_mvm_ac_to_tx_fifo[] = {
1355 iwm_enable_txq(struct iwm_softc *sc, int qid, int fifo)
1357 if (!iwm_nic_lock(sc)) {
1358 device_printf(sc->sc_dev,
1359 "%s: cannot enable txq %d\n",
1362 return; /* XXX return EBUSY */
1365 /* unactivate before configuration */
1366 iwm_write_prph(sc, IWM_SCD_QUEUE_STATUS_BITS(qid),
1367 (0 << IWM_SCD_QUEUE_STTS_REG_POS_ACTIVE)
1368 | (1 << IWM_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
1370 if (qid != IWM_MVM_CMD_QUEUE) {
1371 iwm_set_bits_prph(sc, IWM_SCD_QUEUECHAIN_SEL, (1 << qid));
1374 iwm_clear_bits_prph(sc, IWM_SCD_AGGR_SEL, (1 << qid));
1376 IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, qid << 8 | 0);
1377 iwm_write_prph(sc, IWM_SCD_QUEUE_RDPTR(qid), 0);
1379 iwm_write_mem32(sc, sc->sched_base + IWM_SCD_CONTEXT_QUEUE_OFFSET(qid), 0);
1380 /* Set scheduler window size and frame limit. */
1382 sc->sched_base + IWM_SCD_CONTEXT_QUEUE_OFFSET(qid) +
1384 ((IWM_FRAME_LIMIT << IWM_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
1385 IWM_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
1386 ((IWM_FRAME_LIMIT << IWM_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
1387 IWM_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
1389 iwm_write_prph(sc, IWM_SCD_QUEUE_STATUS_BITS(qid),
1390 (1 << IWM_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
1391 (fifo << IWM_SCD_QUEUE_STTS_REG_POS_TXF) |
1392 (1 << IWM_SCD_QUEUE_STTS_REG_POS_WSL) |
1393 IWM_SCD_QUEUE_STTS_REG_MSK);
1397 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
1398 "%s: enabled txq %d FIFO %d\n",
1399 __func__, qid, fifo);
1403 iwm_post_alive(struct iwm_softc *sc)
1408 if (!iwm_nic_lock(sc))
1411 if (sc->sched_base != iwm_read_prph(sc, IWM_SCD_SRAM_BASE_ADDR)) {
1412 device_printf(sc->sc_dev,
1413 "%s: sched addr mismatch",
1421 /* Clear TX scheduler state in SRAM. */
1422 nwords = (IWM_SCD_TRANS_TBL_MEM_UPPER_BOUND -
1423 IWM_SCD_CONTEXT_MEM_LOWER_BOUND)
1425 error = iwm_write_mem(sc,
1426 sc->sched_base + IWM_SCD_CONTEXT_MEM_LOWER_BOUND,
1431 /* Set physical address of TX scheduler rings (1KB aligned). */
1432 iwm_write_prph(sc, IWM_SCD_DRAM_BASE_ADDR, sc->sched_dma.paddr >> 10);
1434 iwm_write_prph(sc, IWM_SCD_CHAINEXT_EN, 0);
1436 /* enable command channel */
1437 iwm_enable_txq(sc, IWM_MVM_CMD_QUEUE, 7);
1439 iwm_write_prph(sc, IWM_SCD_TXFACT, 0xff);
1441 /* Enable DMA channels. */
1442 for (chnl = 0; chnl < IWM_FH_TCSR_CHNL_NUM; chnl++) {
1443 IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(chnl),
1444 IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
1445 IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
1448 IWM_SETBITS(sc, IWM_FH_TX_CHICKEN_BITS_REG,
1449 IWM_FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
1451 /* Enable L1-Active */
1452 iwm_clear_bits_prph(sc, IWM_APMG_PCIDEV_STT_REG,
1453 IWM_APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
1461 * NVM read access and content parsing. We do not support
1462 * external NVM or writing NVM.
1466 /* list of NVM sections we are allowed/need to read */
1467 const int nvm_to_read[] = {
1468 IWM_NVM_SECTION_TYPE_HW,
1469 IWM_NVM_SECTION_TYPE_SW,
1470 IWM_NVM_SECTION_TYPE_CALIBRATION,
1471 IWM_NVM_SECTION_TYPE_PRODUCTION,
1474 /* Default NVM size to read */
1475 #define IWM_NVM_DEFAULT_CHUNK_SIZE (2*1024)
1476 #define IWM_MAX_NVM_SECTION_SIZE 7000
1478 #define IWM_NVM_WRITE_OPCODE 1
1479 #define IWM_NVM_READ_OPCODE 0
1482 iwm_nvm_read_chunk(struct iwm_softc *sc, uint16_t section,
1483 uint16_t offset, uint16_t length, uint8_t *data, uint16_t *len)
1486 struct iwm_nvm_access_cmd nvm_access_cmd = {
1487 .offset = htole16(offset),
1488 .length = htole16(length),
1489 .type = htole16(section),
1490 .op_code = IWM_NVM_READ_OPCODE,
1492 struct iwm_nvm_access_resp *nvm_resp;
1493 struct iwm_rx_packet *pkt;
1494 struct iwm_host_cmd cmd = {
1495 .id = IWM_NVM_ACCESS_CMD,
1496 .flags = IWM_CMD_SYNC | IWM_CMD_WANT_SKB |
1497 IWM_CMD_SEND_IN_RFKILL,
1498 .data = { &nvm_access_cmd, },
1500 int ret, bytes_read, offset_read;
1503 cmd.len[0] = sizeof(struct iwm_nvm_access_cmd);
1505 ret = iwm_send_cmd(sc, &cmd);
1510 if (pkt->hdr.flags & IWM_CMD_FAILED_MSK) {
1511 device_printf(sc->sc_dev,
1512 "%s: Bad return from IWM_NVM_ACCES_COMMAND (0x%08X)\n",
1513 __func__, pkt->hdr.flags);
1518 /* Extract NVM response */
1519 nvm_resp = (void *)pkt->data;
1521 ret = le16toh(nvm_resp->status);
1522 bytes_read = le16toh(nvm_resp->length);
1523 offset_read = le16toh(nvm_resp->offset);
1524 resp_data = nvm_resp->data;
1526 device_printf(sc->sc_dev,
1527 "%s: NVM access command failed with status %d\n",
1533 if (offset_read != offset) {
1534 device_printf(sc->sc_dev,
1535 "%s: NVM ACCESS response with invalid offset %d\n",
1536 __func__, offset_read);
1541 memcpy(data + offset, resp_data, bytes_read);
1545 iwm_free_resp(sc, &cmd);
1550 * Reads an NVM section completely.
1551 * NICs prior to 7000 family doesn't have a real NVM, but just read
1552 * section 0 which is the EEPROM. Because the EEPROM reading is unlimited
1553 * by uCode, we need to manually check in this case that we don't
1554 * overflow and try to read more than the EEPROM size.
1555 * For 7000 family NICs, we supply the maximal size we can read, and
1556 * the uCode fills the response with as much data as we can,
1557 * without overflowing, so no check is needed.
1560 iwm_nvm_read_section(struct iwm_softc *sc,
1561 uint16_t section, uint8_t *data, uint16_t *len)
1563 uint16_t length, seglen;
1566 /* Set nvm section read length */
1567 length = seglen = IWM_NVM_DEFAULT_CHUNK_SIZE;
1570 /* Read the NVM until exhausted (reading less than requested) */
1571 while (seglen == length) {
1572 error = iwm_nvm_read_chunk(sc,
1573 section, *len, length, data, &seglen);
1575 device_printf(sc->sc_dev,
1576 "Cannot read NVM from section "
1577 "%d offset %d, length %d\n",
1578 section, *len, length);
1584 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
1585 "NVM section %d read completed\n", section);
1590 * BEGIN IWM_NVM_PARSE
1593 /* iwlwifi/iwl-nvm-parse.c */
1595 /* NVM offsets (in words) definitions */
1596 enum wkp_nvm_offsets {
1597 /* NVM HW-Section offset (in words) definitions */
1600 /* NVM SW-Section offset (in words) definitions */
1601 IWM_NVM_SW_SECTION = 0x1C0,
1602 IWM_NVM_VERSION = 0,
1606 IWM_NVM_CHANNELS = 0x1E0 - IWM_NVM_SW_SECTION,
1608 /* NVM calibration section offset (in words) definitions */
1609 IWM_NVM_CALIB_SECTION = 0x2B8,
1610 IWM_XTAL_CALIB = 0x316 - IWM_NVM_CALIB_SECTION
1613 /* SKU Capabilities (actual values from NVM definition) */
1615 IWM_NVM_SKU_CAP_BAND_24GHZ = (1 << 0),
1616 IWM_NVM_SKU_CAP_BAND_52GHZ = (1 << 1),
1617 IWM_NVM_SKU_CAP_11N_ENABLE = (1 << 2),
1618 IWM_NVM_SKU_CAP_11AC_ENABLE = (1 << 3),
1621 /* radio config bits (actual values from NVM definition) */
1622 #define IWM_NVM_RF_CFG_DASH_MSK(x) (x & 0x3) /* bits 0-1 */
1623 #define IWM_NVM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
1624 #define IWM_NVM_RF_CFG_TYPE_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
1625 #define IWM_NVM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
1626 #define IWM_NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
1627 #define IWM_NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
1629 #define DEFAULT_MAX_TX_POWER 16
1632 * enum iwm_nvm_channel_flags - channel flags in NVM
1633 * @IWM_NVM_CHANNEL_VALID: channel is usable for this SKU/geo
1634 * @IWM_NVM_CHANNEL_IBSS: usable as an IBSS channel
1635 * @IWM_NVM_CHANNEL_ACTIVE: active scanning allowed
1636 * @IWM_NVM_CHANNEL_RADAR: radar detection required
1637 * @IWM_NVM_CHANNEL_DFS: dynamic freq selection candidate
1638 * @IWM_NVM_CHANNEL_WIDE: 20 MHz channel okay (?)
1639 * @IWM_NVM_CHANNEL_40MHZ: 40 MHz channel okay (?)
1640 * @IWM_NVM_CHANNEL_80MHZ: 80 MHz channel okay (?)
1641 * @IWM_NVM_CHANNEL_160MHZ: 160 MHz channel okay (?)
1643 enum iwm_nvm_channel_flags {
1644 IWM_NVM_CHANNEL_VALID = (1 << 0),
1645 IWM_NVM_CHANNEL_IBSS = (1 << 1),
1646 IWM_NVM_CHANNEL_ACTIVE = (1 << 3),
1647 IWM_NVM_CHANNEL_RADAR = (1 << 4),
1648 IWM_NVM_CHANNEL_DFS = (1 << 7),
1649 IWM_NVM_CHANNEL_WIDE = (1 << 8),
1650 IWM_NVM_CHANNEL_40MHZ = (1 << 9),
1651 IWM_NVM_CHANNEL_80MHZ = (1 << 10),
1652 IWM_NVM_CHANNEL_160MHZ = (1 << 11),
1656 * Add a channel to the net80211 channel list.
1658 * ieee is the ieee channel number
1659 * ch_idx is channel index.
1660 * mode is the channel mode - CHAN_A, CHAN_B, CHAN_G.
1661 * ch_flags is the iwm channel flags.
1663 * Return 0 on OK, < 0 on error.
1666 iwm_init_net80211_channel(struct iwm_softc *sc, int ieee, int ch_idx,
1667 int mode, uint16_t ch_flags)
1669 /* XXX for now, no overflow checking! */
1670 struct ieee80211com *ic = &sc->sc_ic;
1672 struct ieee80211_channel *channel;
1674 channel = &ic->ic_channels[ic->ic_nchans++];
1675 channel->ic_ieee = ieee;
1677 is_5ghz = ch_idx >= IWM_NUM_2GHZ_CHANNELS;
1679 flags = IEEE80211_CHAN_2GHZ;
1680 channel->ic_flags = mode;
1682 flags = IEEE80211_CHAN_5GHZ;
1683 channel->ic_flags = mode;
1685 channel->ic_freq = ieee80211_ieee2mhz(ieee, flags);
1687 if (!(ch_flags & IWM_NVM_CHANNEL_ACTIVE))
1688 channel->ic_flags |= IEEE80211_CHAN_PASSIVE;
1693 iwm_init_channel_map(struct iwm_softc *sc, const uint16_t * const nvm_ch_flags)
1695 struct ieee80211com *ic = &sc->sc_ic;
1696 struct iwm_nvm_data *data = &sc->sc_nvm;
1701 for (ch_idx = 0; ch_idx < nitems(iwm_nvm_channels); ch_idx++) {
1702 ch_flags = le16_to_cpup(nvm_ch_flags + ch_idx);
1704 if (ch_idx >= IWM_NUM_2GHZ_CHANNELS &&
1705 !data->sku_cap_band_52GHz_enable)
1706 ch_flags &= ~IWM_NVM_CHANNEL_VALID;
1708 if (!(ch_flags & IWM_NVM_CHANNEL_VALID)) {
1709 IWM_DPRINTF(sc, IWM_DEBUG_EEPROM,
1710 "Ch. %d Flags %x [%sGHz] - No traffic\n",
1711 iwm_nvm_channels[ch_idx],
1713 (ch_idx >= IWM_NUM_2GHZ_CHANNELS) ?
1718 hw_value = iwm_nvm_channels[ch_idx];
1721 if (ch_idx >= IWM_NUM_2GHZ_CHANNELS) {
1722 (void) iwm_init_net80211_channel(sc, hw_value,
1727 (void) iwm_init_net80211_channel(sc, hw_value,
1731 /* If it's not channel 13, also add 11g */
1733 (void) iwm_init_net80211_channel(sc, hw_value,
1739 IWM_DPRINTF(sc, IWM_DEBUG_EEPROM,
1740 "Ch. %d Flags %x [%sGHz] - Added\n",
1741 iwm_nvm_channels[ch_idx],
1743 (ch_idx >= IWM_NUM_2GHZ_CHANNELS) ?
1746 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
1750 iwm_parse_nvm_data(struct iwm_softc *sc,
1751 const uint16_t *nvm_hw, const uint16_t *nvm_sw,
1752 const uint16_t *nvm_calib, uint8_t tx_chains, uint8_t rx_chains)
1754 struct iwm_nvm_data *data = &sc->sc_nvm;
1755 uint8_t hw_addr[IEEE80211_ADDR_LEN];
1756 uint16_t radio_cfg, sku;
1758 data->nvm_version = le16_to_cpup(nvm_sw + IWM_NVM_VERSION);
1760 radio_cfg = le16_to_cpup(nvm_sw + IWM_RADIO_CFG);
1761 data->radio_cfg_type = IWM_NVM_RF_CFG_TYPE_MSK(radio_cfg);
1762 data->radio_cfg_step = IWM_NVM_RF_CFG_STEP_MSK(radio_cfg);
1763 data->radio_cfg_dash = IWM_NVM_RF_CFG_DASH_MSK(radio_cfg);
1764 data->radio_cfg_pnum = IWM_NVM_RF_CFG_PNUM_MSK(radio_cfg);
1765 data->valid_tx_ant = IWM_NVM_RF_CFG_TX_ANT_MSK(radio_cfg);
1766 data->valid_rx_ant = IWM_NVM_RF_CFG_RX_ANT_MSK(radio_cfg);
1768 sku = le16_to_cpup(nvm_sw + IWM_SKU);
1769 data->sku_cap_band_24GHz_enable = sku & IWM_NVM_SKU_CAP_BAND_24GHZ;
1770 data->sku_cap_band_52GHz_enable = sku & IWM_NVM_SKU_CAP_BAND_52GHZ;
1771 data->sku_cap_11n_enable = 0;
1773 if (!data->valid_tx_ant || !data->valid_rx_ant) {
1774 device_printf(sc->sc_dev,
1775 "%s: invalid antennas (0x%x, 0x%x)\n",
1776 __func__, data->valid_tx_ant,
1777 data->valid_rx_ant);
1781 data->n_hw_addrs = le16_to_cpup(nvm_sw + IWM_N_HW_ADDRS);
1783 data->xtal_calib[0] = *(nvm_calib + IWM_XTAL_CALIB);
1784 data->xtal_calib[1] = *(nvm_calib + IWM_XTAL_CALIB + 1);
1786 /* The byte order is little endian 16 bit, meaning 214365 */
1787 IEEE80211_ADDR_COPY(hw_addr, nvm_hw + IWM_HW_ADDR);
1788 data->hw_addr[0] = hw_addr[1];
1789 data->hw_addr[1] = hw_addr[0];
1790 data->hw_addr[2] = hw_addr[3];
1791 data->hw_addr[3] = hw_addr[2];
1792 data->hw_addr[4] = hw_addr[5];
1793 data->hw_addr[5] = hw_addr[4];
1795 iwm_init_channel_map(sc, &nvm_sw[IWM_NVM_CHANNELS]);
1796 data->calib_version = 255; /* TODO:
1797 this value will prevent some checks from
1798 failing, we need to check if this
1799 field is still needed, and if it does,
1800 where is it in the NVM */
1809 struct iwm_nvm_section {
1811 const uint8_t *data;
1815 iwm_parse_nvm_sections(struct iwm_softc *sc, struct iwm_nvm_section *sections)
1817 const uint16_t *hw, *sw, *calib;
1819 /* Checking for required sections */
1820 if (!sections[IWM_NVM_SECTION_TYPE_SW].data ||
1821 !sections[IWM_NVM_SECTION_TYPE_HW].data) {
1822 device_printf(sc->sc_dev,
1823 "%s: Can't parse empty NVM sections\n",
1828 hw = (const uint16_t *)sections[IWM_NVM_SECTION_TYPE_HW].data;
1829 sw = (const uint16_t *)sections[IWM_NVM_SECTION_TYPE_SW].data;
1830 calib = (const uint16_t *)sections[IWM_NVM_SECTION_TYPE_CALIBRATION].data;
1831 return iwm_parse_nvm_data(sc, hw, sw, calib,
1832 IWM_FW_VALID_TX_ANT(sc), IWM_FW_VALID_RX_ANT(sc));
1836 iwm_nvm_init(struct iwm_softc *sc)
1838 struct iwm_nvm_section nvm_sections[IWM_NVM_NUM_OF_SECTIONS];
1839 int i, section, error;
1841 uint8_t *nvm_buffer, *temp;
1843 /* Read From FW NVM */
1844 IWM_DPRINTF(sc, IWM_DEBUG_EEPROM,
1848 /* TODO: find correct NVM max size for a section */
1849 nvm_buffer = malloc(IWM_OTP_LOW_IMAGE_SIZE, M_DEVBUF, M_NOWAIT);
1850 if (nvm_buffer == NULL)
1852 for (i = 0; i < nitems(nvm_to_read); i++) {
1853 section = nvm_to_read[i];
1854 KASSERT(section <= nitems(nvm_sections),
1855 ("too many sections"));
1857 error = iwm_nvm_read_section(sc, section, nvm_buffer, &len);
1861 temp = malloc(len, M_DEVBUF, M_NOWAIT);
1866 memcpy(temp, nvm_buffer, len);
1867 nvm_sections[section].data = temp;
1868 nvm_sections[section].length = len;
1870 free(nvm_buffer, M_DEVBUF);
1874 return iwm_parse_nvm_sections(sc, nvm_sections);
1878 * Firmware loading gunk. This is kind of a weird hybrid between the
1879 * iwn driver and the Linux iwlwifi driver.
1883 iwm_firmware_load_chunk(struct iwm_softc *sc, uint32_t dst_addr,
1884 const uint8_t *section, uint32_t byte_cnt)
1886 struct iwm_dma_info *dma = &sc->fw_dma;
1889 /* Copy firmware section into pre-allocated DMA-safe memory. */
1890 memcpy(dma->vaddr, section, byte_cnt);
1891 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
1893 if (!iwm_nic_lock(sc))
1896 sc->sc_fw_chunk_done = 0;
1898 IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(IWM_FH_SRVC_CHNL),
1899 IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
1900 IWM_WRITE(sc, IWM_FH_SRVC_CHNL_SRAM_ADDR_REG(IWM_FH_SRVC_CHNL),
1902 IWM_WRITE(sc, IWM_FH_TFDIB_CTRL0_REG(IWM_FH_SRVC_CHNL),
1903 dma->paddr & IWM_FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
1904 IWM_WRITE(sc, IWM_FH_TFDIB_CTRL1_REG(IWM_FH_SRVC_CHNL),
1905 (iwm_get_dma_hi_addr(dma->paddr)
1906 << IWM_FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
1907 IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_BUF_STS_REG(IWM_FH_SRVC_CHNL),
1908 1 << IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
1909 1 << IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
1910 IWM_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
1911 IWM_WRITE(sc, IWM_FH_TCSR_CHNL_TX_CONFIG_REG(IWM_FH_SRVC_CHNL),
1912 IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
1913 IWM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE |
1914 IWM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
1918 /* wait 1s for this segment to load */
1919 while (!sc->sc_fw_chunk_done)
1920 if ((error = msleep(&sc->sc_fw, &sc->sc_mtx, 0, "iwmfw", hz)) != 0)
1927 iwm_load_firmware(struct iwm_softc *sc, enum iwm_ucode_type ucode_type)
1929 struct iwm_fw_sects *fws;
1935 sc->sc_uc.uc_intr = 0;
1937 fws = &sc->sc_fw.fw_sects[ucode_type];
1938 for (i = 0; i < fws->fw_count; i++) {
1939 data = fws->fw_sect[i].fws_data;
1940 dlen = fws->fw_sect[i].fws_len;
1941 offset = fws->fw_sect[i].fws_devoff;
1942 IWM_DPRINTF(sc, IWM_DEBUG_FIRMWARE_TLV,
1943 "LOAD FIRMWARE type %d offset %u len %d\n",
1944 ucode_type, offset, dlen);
1945 error = iwm_firmware_load_chunk(sc, offset, data, dlen);
1947 device_printf(sc->sc_dev,
1948 "%s: chunk %u of %u returned error %02d\n",
1949 __func__, i, fws->fw_count, error);
1954 /* wait for the firmware to load */
1955 IWM_WRITE(sc, IWM_CSR_RESET, 0);
1957 for (w = 0; !sc->sc_uc.uc_intr && w < 10; w++) {
1958 error = msleep(&sc->sc_uc, &sc->sc_mtx, 0, "iwmuc", hz/10);
1964 /* iwlwifi: pcie/trans.c */
1966 iwm_start_fw(struct iwm_softc *sc, enum iwm_ucode_type ucode_type)
1970 IWM_WRITE(sc, IWM_CSR_INT, ~0);
1972 if ((error = iwm_nic_init(sc)) != 0) {
1973 device_printf(sc->sc_dev, "unable to init nic\n");
1977 /* make sure rfkill handshake bits are cleared */
1978 IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL);
1979 IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR,
1980 IWM_CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1982 /* clear (again), then enable host interrupts */
1983 IWM_WRITE(sc, IWM_CSR_INT, ~0);
1984 iwm_enable_interrupts(sc);
1986 /* really make sure rfkill handshake bits are cleared */
1987 /* maybe we should write a few times more? just to make sure */
1988 IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL);
1989 IWM_WRITE(sc, IWM_CSR_UCODE_DRV_GP1_CLR, IWM_CSR_UCODE_SW_BIT_RFKILL);
1991 /* Load the given image to the HW */
1992 return iwm_load_firmware(sc, ucode_type);
1996 iwm_fw_alive(struct iwm_softc *sc, uint32_t sched_base)
1998 return iwm_post_alive(sc);
2002 iwm_send_tx_ant_cfg(struct iwm_softc *sc, uint8_t valid_tx_ant)
2004 struct iwm_tx_ant_cfg_cmd tx_ant_cmd = {
2005 .valid = htole32(valid_tx_ant),
2008 return iwm_mvm_send_cmd_pdu(sc, IWM_TX_ANT_CONFIGURATION_CMD,
2009 IWM_CMD_SYNC, sizeof(tx_ant_cmd), &tx_ant_cmd);
2012 /* iwlwifi: mvm/fw.c */
2014 iwm_send_phy_cfg_cmd(struct iwm_softc *sc)
2016 struct iwm_phy_cfg_cmd phy_cfg_cmd;
2017 enum iwm_ucode_type ucode_type = sc->sc_uc_current;
2019 /* Set parameters */
2020 phy_cfg_cmd.phy_cfg = htole32(sc->sc_fw_phy_config);
2021 phy_cfg_cmd.calib_control.event_trigger =
2022 sc->sc_default_calib[ucode_type].event_trigger;
2023 phy_cfg_cmd.calib_control.flow_trigger =
2024 sc->sc_default_calib[ucode_type].flow_trigger;
2026 IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
2027 "Sending Phy CFG command: 0x%x\n", phy_cfg_cmd.phy_cfg);
2028 return iwm_mvm_send_cmd_pdu(sc, IWM_PHY_CONFIGURATION_CMD, IWM_CMD_SYNC,
2029 sizeof(phy_cfg_cmd), &phy_cfg_cmd);
2033 iwm_mvm_load_ucode_wait_alive(struct iwm_softc *sc,
2034 enum iwm_ucode_type ucode_type)
2036 enum iwm_ucode_type old_type = sc->sc_uc_current;
2039 if ((error = iwm_read_firmware(sc, ucode_type)) != 0)
2042 sc->sc_uc_current = ucode_type;
2043 error = iwm_start_fw(sc, ucode_type);
2045 sc->sc_uc_current = old_type;
2049 return iwm_fw_alive(sc, sc->sched_base);
2057 * follows iwlwifi/fw.c
2060 iwm_run_init_mvm_ucode(struct iwm_softc *sc, int justnvm)
2064 /* do not operate with rfkill switch turned on */
2065 if ((sc->sc_flags & IWM_FLAG_RFKILL) && !justnvm) {
2066 device_printf(sc->sc_dev,
2067 "radio is disabled by hardware switch\n");
2071 sc->sc_init_complete = 0;
2072 if ((error = iwm_mvm_load_ucode_wait_alive(sc,
2073 IWM_UCODE_TYPE_INIT)) != 0)
2077 if ((error = iwm_nvm_init(sc)) != 0) {
2078 device_printf(sc->sc_dev, "failed to read nvm\n");
2081 IEEE80211_ADDR_COPY(sc->sc_ic.ic_macaddr, sc->sc_nvm.hw_addr);
2083 sc->sc_scan_cmd_len = sizeof(struct iwm_scan_cmd)
2084 + sc->sc_capa_max_probe_len
2085 + IWM_MAX_NUM_SCAN_CHANNELS
2086 * sizeof(struct iwm_scan_channel);
2087 sc->sc_scan_cmd = malloc(sc->sc_scan_cmd_len, M_DEVBUF,
2089 if (sc->sc_scan_cmd == NULL)
2095 /* Send TX valid antennas before triggering calibrations */
2096 if ((error = iwm_send_tx_ant_cfg(sc, IWM_FW_VALID_TX_ANT(sc))) != 0)
2100 * Send phy configurations command to init uCode
2101 * to start the 16.0 uCode init image internal calibrations.
2103 if ((error = iwm_send_phy_cfg_cmd(sc)) != 0 ) {
2104 device_printf(sc->sc_dev,
2105 "%s: failed to run internal calibration: %d\n",
2111 * Nothing to do but wait for the init complete notification
2114 while (!sc->sc_init_complete)
2115 if ((error = msleep(&sc->sc_init_complete, &sc->sc_mtx,
2116 0, "iwminit", 2*hz)) != 0)
2126 /* (re)stock rx ring, called at init-time and at runtime */
2128 iwm_rx_addbuf(struct iwm_softc *sc, int size, int idx)
2130 struct iwm_rx_ring *ring = &sc->rxq;
2131 struct iwm_rx_data *data = &ring->data[idx];
2136 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, IWM_RBUF_SIZE);
2140 if (data->m != NULL)
2141 bus_dmamap_unload(ring->data_dmat, data->map);
2143 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size;
2144 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
2146 device_printf(sc->sc_dev,
2147 "%s: could not create RX buf DMA map, error %d\n",
2152 error = bus_dmamap_load(ring->data_dmat, data->map,
2153 mtod(data->m, void *), IWM_RBUF_SIZE, iwm_dma_map_addr,
2154 &paddr, BUS_DMA_NOWAIT);
2155 if (error != 0 && error != EFBIG) {
2156 device_printf(sc->sc_dev,
2157 "%s: can't not map mbuf, error %d\n", __func__,
2161 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREREAD);
2163 /* Update RX descriptor. */
2164 ring->desc[idx] = htole32(paddr >> 8);
2165 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2166 BUS_DMASYNC_PREWRITE);
2173 /* iwlwifi: mvm/rx.c */
2174 #define IWM_RSSI_OFFSET 50
2176 iwm_mvm_calc_rssi(struct iwm_softc *sc, struct iwm_rx_phy_info *phy_info)
2178 int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm;
2179 uint32_t agc_a, agc_b;
2182 val = le32toh(phy_info->non_cfg_phy[IWM_RX_INFO_AGC_IDX]);
2183 agc_a = (val & IWM_OFDM_AGC_A_MSK) >> IWM_OFDM_AGC_A_POS;
2184 agc_b = (val & IWM_OFDM_AGC_B_MSK) >> IWM_OFDM_AGC_B_POS;
2186 val = le32toh(phy_info->non_cfg_phy[IWM_RX_INFO_RSSI_AB_IDX]);
2187 rssi_a = (val & IWM_OFDM_RSSI_INBAND_A_MSK) >> IWM_OFDM_RSSI_A_POS;
2188 rssi_b = (val & IWM_OFDM_RSSI_INBAND_B_MSK) >> IWM_OFDM_RSSI_B_POS;
2191 * dBm = rssi dB - agc dB - constant.
2192 * Higher AGC (higher radio gain) means lower signal.
2194 rssi_a_dbm = rssi_a - IWM_RSSI_OFFSET - agc_a;
2195 rssi_b_dbm = rssi_b - IWM_RSSI_OFFSET - agc_b;
2196 max_rssi_dbm = MAX(rssi_a_dbm, rssi_b_dbm);
2198 IWM_DPRINTF(sc, IWM_DEBUG_RECV,
2199 "Rssi In A %d B %d Max %d AGCA %d AGCB %d\n",
2200 rssi_a_dbm, rssi_b_dbm, max_rssi_dbm, agc_a, agc_b);
2202 return max_rssi_dbm;
2205 /* iwlwifi: mvm/rx.c */
2207 * iwm_mvm_get_signal_strength - use new rx PHY INFO API
2208 * values are reported by the fw as positive values - need to negate
2209 * to obtain their dBM. Account for missing antennas by replacing 0
2210 * values by -256dBm: practically 0 power and a non-feasible 8 bit value.
2213 iwm_mvm_get_signal_strength(struct iwm_softc *sc, struct iwm_rx_phy_info *phy_info)
2215 int energy_a, energy_b, energy_c, max_energy;
2218 val = le32toh(phy_info->non_cfg_phy[IWM_RX_INFO_ENERGY_ANT_ABC_IDX]);
2219 energy_a = (val & IWM_RX_INFO_ENERGY_ANT_A_MSK) >>
2220 IWM_RX_INFO_ENERGY_ANT_A_POS;
2221 energy_a = energy_a ? -energy_a : -256;
2222 energy_b = (val & IWM_RX_INFO_ENERGY_ANT_B_MSK) >>
2223 IWM_RX_INFO_ENERGY_ANT_B_POS;
2224 energy_b = energy_b ? -energy_b : -256;
2225 energy_c = (val & IWM_RX_INFO_ENERGY_ANT_C_MSK) >>
2226 IWM_RX_INFO_ENERGY_ANT_C_POS;
2227 energy_c = energy_c ? -energy_c : -256;
2228 max_energy = MAX(energy_a, energy_b);
2229 max_energy = MAX(max_energy, energy_c);
2231 IWM_DPRINTF(sc, IWM_DEBUG_RECV,
2232 "energy In A %d B %d C %d , and max %d\n",
2233 energy_a, energy_b, energy_c, max_energy);
2239 iwm_mvm_rx_rx_phy_cmd(struct iwm_softc *sc,
2240 struct iwm_rx_packet *pkt, struct iwm_rx_data *data)
2242 struct iwm_rx_phy_info *phy_info = (void *)pkt->data;
2244 IWM_DPRINTF(sc, IWM_DEBUG_RECV, "received PHY stats\n");
2245 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2247 memcpy(&sc->sc_last_phy_info, phy_info, sizeof(sc->sc_last_phy_info));
2251 * Retrieve the average noise (in dBm) among receivers.
2254 iwm_get_noise(const struct iwm_mvm_statistics_rx_non_phy *stats)
2256 int i, total, nbant, noise;
2258 total = nbant = noise = 0;
2259 for (i = 0; i < 3; i++) {
2260 noise = le32toh(stats->beacon_silence_rssi[i]) & 0xff;
2267 /* There should be at least one antenna but check anyway. */
2268 return (nbant == 0) ? -127 : (total / nbant) - 107;
2272 * iwm_mvm_rx_rx_mpdu - IWM_REPLY_RX_MPDU_CMD handler
2274 * Handles the actual data of the Rx packet from the fw
2277 iwm_mvm_rx_rx_mpdu(struct iwm_softc *sc,
2278 struct iwm_rx_packet *pkt, struct iwm_rx_data *data)
2280 struct ieee80211com *ic = &sc->sc_ic;
2281 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2282 struct ieee80211_frame *wh;
2283 struct ieee80211_node *ni;
2284 struct ieee80211_rx_stats rxs;
2286 struct iwm_rx_phy_info *phy_info;
2287 struct iwm_rx_mpdu_res_start *rx_res;
2289 uint32_t rx_pkt_status;
2292 bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2294 phy_info = &sc->sc_last_phy_info;
2295 rx_res = (struct iwm_rx_mpdu_res_start *)pkt->data;
2296 wh = (struct ieee80211_frame *)(pkt->data + sizeof(*rx_res));
2297 len = le16toh(rx_res->byte_count);
2298 rx_pkt_status = le32toh(*(uint32_t *)(pkt->data + sizeof(*rx_res) + len));
2301 m->m_data = pkt->data + sizeof(*rx_res);
2302 m->m_pkthdr.len = m->m_len = len;
2304 if (__predict_false(phy_info->cfg_phy_cnt > 20)) {
2305 device_printf(sc->sc_dev,
2306 "dsp size out of range [0,20]: %d\n",
2307 phy_info->cfg_phy_cnt);
2311 if (!(rx_pkt_status & IWM_RX_MPDU_RES_STATUS_CRC_OK) ||
2312 !(rx_pkt_status & IWM_RX_MPDU_RES_STATUS_OVERRUN_OK)) {
2313 IWM_DPRINTF(sc, IWM_DEBUG_RECV,
2314 "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status);
2318 if (sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_RX_ENERGY_API) {
2319 rssi = iwm_mvm_get_signal_strength(sc, phy_info);
2321 rssi = iwm_mvm_calc_rssi(sc, phy_info);
2323 rssi = (0 - IWM_MIN_DBM) + rssi; /* normalize */
2324 rssi = MIN(rssi, sc->sc_max_rssi); /* clip to max. 100% */
2326 /* replenish ring for the buffer we're going to feed to the sharks */
2327 if (iwm_rx_addbuf(sc, IWM_RBUF_SIZE, sc->rxq.cur) != 0) {
2328 device_printf(sc->sc_dev, "%s: unable to add more buffers\n",
2333 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
2335 IWM_DPRINTF(sc, IWM_DEBUG_RECV,
2336 "%s: phy_info: channel=%d, flags=0x%08x\n",
2338 le16toh(phy_info->channel),
2339 le16toh(phy_info->phy_flags));
2342 * Populate an RX state struct with the provided information.
2344 bzero(&rxs, sizeof(rxs));
2345 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ;
2346 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI;
2347 rxs.c_ieee = le16toh(phy_info->channel);
2348 if (le16toh(phy_info->phy_flags & IWM_RX_RES_PHY_FLAGS_BAND_24)) {
2349 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ);
2351 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_5GHZ);
2353 rxs.rssi = rssi - sc->sc_noise;
2354 rxs.nf = sc->sc_noise;
2356 if (ieee80211_radiotap_active_vap(vap)) {
2357 struct iwm_rx_radiotap_header *tap = &sc->sc_rxtap;
2360 if (phy_info->phy_flags & htole16(IWM_PHY_INFO_FLAG_SHPREAMBLE))
2361 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
2362 tap->wr_chan_freq = htole16(rxs.c_freq);
2363 /* XXX only if ic->ic_curchan->ic_ieee == rxs.c_ieee */
2364 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
2365 tap->wr_dbm_antsignal = (int8_t)rssi;
2366 tap->wr_dbm_antnoise = (int8_t)sc->sc_noise;
2367 tap->wr_tsft = phy_info->system_timestamp;
2368 switch (phy_info->rate) {
2370 case 10: tap->wr_rate = 2; break;
2371 case 20: tap->wr_rate = 4; break;
2372 case 55: tap->wr_rate = 11; break;
2373 case 110: tap->wr_rate = 22; break;
2375 case 0xd: tap->wr_rate = 12; break;
2376 case 0xf: tap->wr_rate = 18; break;
2377 case 0x5: tap->wr_rate = 24; break;
2378 case 0x7: tap->wr_rate = 36; break;
2379 case 0x9: tap->wr_rate = 48; break;
2380 case 0xb: tap->wr_rate = 72; break;
2381 case 0x1: tap->wr_rate = 96; break;
2382 case 0x3: tap->wr_rate = 108; break;
2383 /* Unknown rate: should not happen. */
2384 default: tap->wr_rate = 0;
2390 IWM_DPRINTF(sc, IWM_DEBUG_RECV, "input m %p\n", m);
2391 ieee80211_input_mimo(ni, m, &rxs);
2392 ieee80211_free_node(ni);
2394 IWM_DPRINTF(sc, IWM_DEBUG_RECV, "inputall m %p\n", m);
2395 ieee80211_input_mimo_all(ic, m, &rxs);
2401 iwm_mvm_rx_tx_cmd_single(struct iwm_softc *sc, struct iwm_rx_packet *pkt,
2402 struct iwm_node *in)
2404 struct iwm_mvm_tx_resp *tx_resp = (void *)pkt->data;
2405 struct ieee80211_node *ni = &in->in_ni;
2406 struct ieee80211vap *vap = ni->ni_vap;
2407 int status = le16toh(tx_resp->status.status) & IWM_TX_STATUS_MSK;
2408 int failack = tx_resp->failure_frame;
2410 KASSERT(tx_resp->frame_count == 1, ("too many frames"));
2412 /* Update rate control statistics. */
2413 if (status != IWM_TX_STATUS_SUCCESS &&
2414 status != IWM_TX_STATUS_DIRECT_DONE) {
2415 ieee80211_ratectl_tx_complete(vap, ni,
2416 IEEE80211_RATECTL_TX_FAILURE, &failack, NULL);
2419 ieee80211_ratectl_tx_complete(vap, ni,
2420 IEEE80211_RATECTL_TX_SUCCESS, &failack, NULL);
2426 iwm_mvm_rx_tx_cmd(struct iwm_softc *sc,
2427 struct iwm_rx_packet *pkt, struct iwm_rx_data *data)
2429 struct iwm_cmd_header *cmd_hdr = &pkt->hdr;
2430 int idx = cmd_hdr->idx;
2431 int qid = cmd_hdr->qid;
2432 struct iwm_tx_ring *ring = &sc->txq[qid];
2433 struct iwm_tx_data *txd = &ring->data[idx];
2434 struct iwm_node *in = txd->in;
2435 struct mbuf *m = txd->m;
2438 KASSERT(txd->done == 0, ("txd not done"));
2439 KASSERT(txd->in != NULL, ("txd without node"));
2440 KASSERT(txd->m != NULL, ("txd without mbuf"));
2442 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
2444 sc->sc_tx_timer = 0;
2446 status = iwm_mvm_rx_tx_cmd_single(sc, pkt, in);
2448 /* Unmap and free mbuf. */
2449 bus_dmamap_sync(ring->data_dmat, txd->map, BUS_DMASYNC_POSTWRITE);
2450 bus_dmamap_unload(ring->data_dmat, txd->map);
2452 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
2453 "free txd %p, in %p\n", txd, txd->in);
2458 ieee80211_tx_complete(&in->in_ni, m, status);
2460 if (--ring->queued < IWM_TX_RING_LOMARK) {
2461 sc->qfullmsk &= ~(1 << ring->qid);
2462 if (sc->qfullmsk == 0) {
2464 * Well, we're in interrupt context, but then again
2465 * I guess net80211 does all sorts of stunts in
2466 * interrupt context, so maybe this is no biggie.
2478 * Process a "command done" firmware notification. This is where we wakeup
2479 * processes waiting for a synchronous command completion.
2483 iwm_cmd_done(struct iwm_softc *sc, struct iwm_rx_packet *pkt)
2485 struct iwm_tx_ring *ring = &sc->txq[IWM_MVM_CMD_QUEUE];
2486 struct iwm_tx_data *data;
2488 if (pkt->hdr.qid != IWM_MVM_CMD_QUEUE) {
2489 return; /* Not a command ack. */
2492 data = &ring->data[pkt->hdr.idx];
2494 /* If the command was mapped in an mbuf, free it. */
2495 if (data->m != NULL) {
2496 bus_dmamap_sync(ring->data_dmat, data->map,
2497 BUS_DMASYNC_POSTWRITE);
2498 bus_dmamap_unload(ring->data_dmat, data->map);
2502 wakeup(&ring->desc[pkt->hdr.idx]);
2507 * necessary only for block ack mode
2510 iwm_update_sched(struct iwm_softc *sc, int qid, int idx, uint8_t sta_id,
2513 struct iwm_agn_scd_bc_tbl *scd_bc_tbl;
2516 scd_bc_tbl = sc->sched_dma.vaddr;
2518 len += 8; /* magic numbers came naturally from paris */
2519 if (sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_DW_BC_TABLE)
2520 len = roundup(len, 4) / 4;
2522 w_val = htole16(sta_id << 12 | len);
2524 /* Update TX scheduler. */
2525 scd_bc_tbl[qid].tfd_offset[idx] = w_val;
2526 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2527 BUS_DMASYNC_PREWRITE);
2529 /* I really wonder what this is ?!? */
2530 if (idx < IWM_TFD_QUEUE_SIZE_BC_DUP) {
2531 scd_bc_tbl[qid].tfd_offset[IWM_TFD_QUEUE_SIZE_MAX + idx] = w_val;
2532 bus_dmamap_sync(sc->sched_dma.tag, sc->sched_dma.map,
2533 BUS_DMASYNC_PREWRITE);
2539 * Take an 802.11 (non-n) rate, find the relevant rate
2540 * table entry. return the index into in_ridx[].
2542 * The caller then uses that index back into in_ridx
2543 * to figure out the rate index programmed /into/
2544 * the firmware for this given node.
2547 iwm_tx_rateidx_lookup(struct iwm_softc *sc, struct iwm_node *in,
2553 for (i = 0; i < nitems(in->in_ridx); i++) {
2554 r = iwm_rates[in->in_ridx[i]].rate;
2558 /* XXX Return the first */
2559 /* XXX TODO: have it return the /lowest/ */
2564 * Fill in various bit for management frames, and leave them
2565 * unfilled for data frames (firmware takes care of that).
2566 * Return the selected TX rate.
2568 static const struct iwm_rate *
2569 iwm_tx_fill_cmd(struct iwm_softc *sc, struct iwm_node *in,
2570 struct ieee80211_frame *wh, struct iwm_tx_cmd *tx)
2572 struct ieee80211com *ic = &sc->sc_ic;
2573 struct ieee80211_node *ni = &in->in_ni;
2574 const struct iwm_rate *rinfo;
2575 int type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2576 int ridx, rate_flags;
2578 tx->rts_retry_limit = IWM_RTS_DFAULT_RETRY_LIMIT;
2579 tx->data_retry_limit = IWM_DEFAULT_TX_RETRY;
2582 * XXX TODO: everything about the rate selection here is terrible!
2585 if (type == IEEE80211_FC0_TYPE_DATA) {
2587 /* for data frames, use RS table */
2588 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2589 i = iwm_tx_rateidx_lookup(sc, in, ni->ni_txrate);
2590 ridx = in->in_ridx[i];
2592 /* This is the index into the programmed table */
2593 tx->initial_rate_index = i;
2594 tx->tx_flags |= htole32(IWM_TX_CMD_FLG_STA_RATE);
2595 IWM_DPRINTF(sc, IWM_DEBUG_XMIT | IWM_DEBUG_TXRATE,
2596 "%s: start with i=%d, txrate %d\n",
2597 __func__, i, iwm_rates[ridx].rate);
2598 /* XXX no rate_n_flags? */
2599 return &iwm_rates[ridx];
2603 * For non-data, use the lowest supported rate for the given
2606 * Note: there may not be any rate control information available.
2607 * This driver currently assumes if we're transmitting data
2608 * frames, use the rate control table. Grr.
2610 * XXX TODO: use the configured rate for the traffic type!
2612 if (ic->ic_curmode == IEEE80211_MODE_11A) {
2614 * XXX this assumes the mode is either 11a or not 11a;
2615 * definitely won't work for 11n.
2617 ridx = IWM_RIDX_OFDM;
2619 ridx = IWM_RIDX_CCK;
2622 rinfo = &iwm_rates[ridx];
2624 IWM_DPRINTF(sc, IWM_DEBUG_TXRATE, "%s: ridx=%d; rate=%d, CCK=%d\n",
2627 !! (IWM_RIDX_IS_CCK(ridx))
2630 /* XXX TODO: hard-coded TX antenna? */
2631 rate_flags = 1 << IWM_RATE_MCS_ANT_POS;
2632 if (IWM_RIDX_IS_CCK(ridx))
2633 rate_flags |= IWM_RATE_MCS_CCK_MSK;
2634 /* XXX hard-coded tx rate */
2635 tx->rate_n_flags = htole32(rate_flags | rinfo->plcp);
2642 iwm_tx(struct iwm_softc *sc, struct mbuf *m, struct ieee80211_node *ni, int ac)
2644 struct ieee80211com *ic = &sc->sc_ic;
2645 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2646 struct iwm_node *in = IWM_NODE(ni);
2647 struct iwm_tx_ring *ring;
2648 struct iwm_tx_data *data;
2649 struct iwm_tfd *desc;
2650 struct iwm_device_cmd *cmd;
2651 struct iwm_tx_cmd *tx;
2652 struct ieee80211_frame *wh;
2653 struct ieee80211_key *k = NULL;
2655 const struct iwm_rate *rinfo;
2658 bus_dma_segment_t *seg, segs[IWM_MAX_SCATTER];
2661 int i, totlen, error, pad;
2663 wh = mtod(m, struct ieee80211_frame *);
2664 hdrlen = ieee80211_anyhdrsize(wh);
2665 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
2667 ring = &sc->txq[ac];
2668 desc = &ring->desc[ring->cur];
2669 memset(desc, 0, sizeof(*desc));
2670 data = &ring->data[ring->cur];
2672 /* Fill out iwm_tx_cmd to send to the firmware */
2673 cmd = &ring->cmd[ring->cur];
2674 cmd->hdr.code = IWM_TX_CMD;
2676 cmd->hdr.qid = ring->qid;
2677 cmd->hdr.idx = ring->cur;
2679 tx = (void *)cmd->data;
2680 memset(tx, 0, sizeof(*tx));
2682 rinfo = iwm_tx_fill_cmd(sc, in, wh, tx);
2684 /* Encrypt the frame if need be. */
2685 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2686 /* Retrieve key for TX && do software encryption. */
2687 k = ieee80211_crypto_encap(ni, m);
2692 /* 802.11 header may have moved. */
2693 wh = mtod(m, struct ieee80211_frame *);
2696 if (ieee80211_radiotap_active_vap(vap)) {
2697 struct iwm_tx_radiotap_header *tap = &sc->sc_txtap;
2700 tap->wt_chan_freq = htole16(ni->ni_chan->ic_freq);
2701 tap->wt_chan_flags = htole16(ni->ni_chan->ic_flags);
2702 tap->wt_rate = rinfo->rate;
2704 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
2705 ieee80211_radiotap_tx(vap, m);
2709 totlen = m->m_pkthdr.len;
2712 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2713 flags |= IWM_TX_CMD_FLG_ACK;
2716 if (type != IEEE80211_FC0_TYPE_DATA
2717 && (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
2718 && !IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2719 flags |= IWM_TX_CMD_FLG_PROT_REQUIRE;
2722 if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
2723 type != IEEE80211_FC0_TYPE_DATA)
2724 tx->sta_id = sc->sc_aux_sta.sta_id;
2726 tx->sta_id = IWM_STATION_ID;
2728 if (type == IEEE80211_FC0_TYPE_MGT) {
2729 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
2731 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
2732 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
2733 tx->pm_frame_timeout = htole16(3);
2735 tx->pm_frame_timeout = htole16(2);
2737 tx->pm_frame_timeout = htole16(0);
2741 /* First segment length must be a multiple of 4. */
2742 flags |= IWM_TX_CMD_FLG_MH_PAD;
2743 pad = 4 - (hdrlen & 3);
2747 tx->driver_txop = 0;
2748 tx->next_frame_len = 0;
2750 tx->len = htole16(totlen);
2751 tx->tid_tspec = tid;
2752 tx->life_time = htole32(IWM_TX_CMD_LIFE_TIME_INFINITE);
2754 /* Set physical address of "scratch area". */
2755 tx->dram_lsb_ptr = htole32(data->scratch_paddr);
2756 tx->dram_msb_ptr = iwm_get_dma_hi_addr(data->scratch_paddr);
2758 /* Copy 802.11 header in TX command. */
2759 memcpy(((uint8_t *)tx) + sizeof(*tx), wh, hdrlen);
2761 flags |= IWM_TX_CMD_FLG_BT_DIS | IWM_TX_CMD_FLG_SEQ_CTL;
2764 tx->tx_flags |= htole32(flags);
2766 /* Trim 802.11 header. */
2768 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m,
2769 segs, &nsegs, BUS_DMA_NOWAIT);
2771 if (error != EFBIG) {
2772 device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
2777 /* Too many DMA segments, linearize mbuf. */
2778 m1 = m_collapse(m, M_NOWAIT, IWM_MAX_SCATTER - 2);
2780 device_printf(sc->sc_dev,
2781 "%s: could not defrag mbuf\n", __func__);
2787 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m,
2788 segs, &nsegs, BUS_DMA_NOWAIT);
2790 device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
2800 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
2801 "sending txd %p, in %p\n", data, data->in);
2802 KASSERT(data->in != NULL, ("node is NULL"));
2804 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
2805 "sending data: qid=%d idx=%d len=%d nsegs=%d\n",
2806 ring->qid, ring->cur, totlen, nsegs);
2808 /* Fill TX descriptor. */
2809 desc->num_tbs = 2 + nsegs;
2811 desc->tbs[0].lo = htole32(data->cmd_paddr);
2812 desc->tbs[0].hi_n_len = htole16(iwm_get_dma_hi_addr(data->cmd_paddr)) |
2814 desc->tbs[1].lo = htole32(data->cmd_paddr + TB0_SIZE);
2815 desc->tbs[1].hi_n_len = htole16(iwm_get_dma_hi_addr(data->cmd_paddr)) |
2816 ((sizeof(struct iwm_cmd_header) + sizeof(*tx)
2817 + hdrlen + pad - TB0_SIZE) << 4);
2819 /* Other DMA segments are for data payload. */
2820 for (i = 0; i < nsegs; i++) {
2822 desc->tbs[i+2].lo = htole32(seg->ds_addr);
2823 desc->tbs[i+2].hi_n_len = \
2824 htole16(iwm_get_dma_hi_addr(seg->ds_addr))
2825 | ((seg->ds_len) << 4);
2828 bus_dmamap_sync(ring->data_dmat, data->map,
2829 BUS_DMASYNC_PREWRITE);
2830 bus_dmamap_sync(ring->cmd_dma.tag, ring->cmd_dma.map,
2831 BUS_DMASYNC_PREWRITE);
2832 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2833 BUS_DMASYNC_PREWRITE);
2836 iwm_update_sched(sc, ring->qid, ring->cur, tx->sta_id, le16toh(tx->len));
2840 ring->cur = (ring->cur + 1) % IWM_TX_RING_COUNT;
2841 IWM_WRITE(sc, IWM_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
2843 /* Mark TX ring as full if we reach a certain threshold. */
2844 if (++ring->queued > IWM_TX_RING_HIMARK) {
2845 sc->qfullmsk |= 1 << ring->qid;
2852 iwm_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2853 const struct ieee80211_bpf_params *params)
2855 struct ieee80211com *ic = ni->ni_ic;
2856 struct iwm_softc *sc = ic->ic_softc;
2859 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
2860 "->%s begin\n", __func__);
2862 if ((sc->sc_flags & IWM_FLAG_HW_INITED) == 0) {
2864 IWM_DPRINTF(sc, IWM_DEBUG_XMIT,
2865 "<-%s not RUNNING\n", __func__);
2871 if (params == NULL) {
2872 error = iwm_tx(sc, m, ni, 0);
2874 error = iwm_tx(sc, m, ni, 0);
2876 sc->sc_tx_timer = 5;
2888 * Note that there are transports that buffer frames before they reach
2889 * the firmware. This means that after flush_tx_path is called, the
2890 * queue might not be empty. The race-free way to handle this is to:
2891 * 1) set the station as draining
2892 * 2) flush the Tx path
2893 * 3) wait for the transport queues to be empty
2896 iwm_mvm_flush_tx_path(struct iwm_softc *sc, int tfd_msk, int sync)
2898 struct iwm_tx_path_flush_cmd flush_cmd = {
2899 .queues_ctl = htole32(tfd_msk),
2900 .flush_ctl = htole16(IWM_DUMP_TX_FIFO_FLUSH),
2904 ret = iwm_mvm_send_cmd_pdu(sc, IWM_TXPATH_FLUSH,
2905 sync ? IWM_CMD_SYNC : IWM_CMD_ASYNC,
2906 sizeof(flush_cmd), &flush_cmd);
2908 device_printf(sc->sc_dev,
2909 "Flushing tx queue failed: %d\n", ret);
2919 iwm_mvm_add_sta_cmd_v6_to_v5(struct iwm_mvm_add_sta_cmd_v6 *cmd_v6,
2920 struct iwm_mvm_add_sta_cmd_v5 *cmd_v5)
2922 memset(cmd_v5, 0, sizeof(*cmd_v5));
2924 cmd_v5->add_modify = cmd_v6->add_modify;
2925 cmd_v5->tid_disable_tx = cmd_v6->tid_disable_tx;
2926 cmd_v5->mac_id_n_color = cmd_v6->mac_id_n_color;
2927 IEEE80211_ADDR_COPY(cmd_v5->addr, cmd_v6->addr);
2928 cmd_v5->sta_id = cmd_v6->sta_id;
2929 cmd_v5->modify_mask = cmd_v6->modify_mask;
2930 cmd_v5->station_flags = cmd_v6->station_flags;
2931 cmd_v5->station_flags_msk = cmd_v6->station_flags_msk;
2932 cmd_v5->add_immediate_ba_tid = cmd_v6->add_immediate_ba_tid;
2933 cmd_v5->remove_immediate_ba_tid = cmd_v6->remove_immediate_ba_tid;
2934 cmd_v5->add_immediate_ba_ssn = cmd_v6->add_immediate_ba_ssn;
2935 cmd_v5->sleep_tx_count = cmd_v6->sleep_tx_count;
2936 cmd_v5->sleep_state_flags = cmd_v6->sleep_state_flags;
2937 cmd_v5->assoc_id = cmd_v6->assoc_id;
2938 cmd_v5->beamform_flags = cmd_v6->beamform_flags;
2939 cmd_v5->tfd_queue_msk = cmd_v6->tfd_queue_msk;
2943 iwm_mvm_send_add_sta_cmd_status(struct iwm_softc *sc,
2944 struct iwm_mvm_add_sta_cmd_v6 *cmd, int *status)
2946 struct iwm_mvm_add_sta_cmd_v5 cmd_v5;
2948 if (sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_STA_KEY_CMD) {
2949 return iwm_mvm_send_cmd_pdu_status(sc, IWM_ADD_STA,
2950 sizeof(*cmd), cmd, status);
2953 iwm_mvm_add_sta_cmd_v6_to_v5(cmd, &cmd_v5);
2955 return iwm_mvm_send_cmd_pdu_status(sc, IWM_ADD_STA, sizeof(cmd_v5),
2959 /* send station add/update command to firmware */
2961 iwm_mvm_sta_send_to_fw(struct iwm_softc *sc, struct iwm_node *in, int update)
2963 struct iwm_mvm_add_sta_cmd_v6 add_sta_cmd;
2967 memset(&add_sta_cmd, 0, sizeof(add_sta_cmd));
2969 add_sta_cmd.sta_id = IWM_STATION_ID;
2970 add_sta_cmd.mac_id_n_color
2971 = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID,
2972 IWM_DEFAULT_COLOR));
2974 add_sta_cmd.tfd_queue_msk = htole32(0xf);
2975 IEEE80211_ADDR_COPY(&add_sta_cmd.addr, in->in_ni.ni_bssid);
2977 add_sta_cmd.add_modify = update ? 1 : 0;
2978 add_sta_cmd.station_flags_msk
2979 |= htole32(IWM_STA_FLG_FAT_EN_MSK | IWM_STA_FLG_MIMO_EN_MSK);
2981 status = IWM_ADD_STA_SUCCESS;
2982 ret = iwm_mvm_send_add_sta_cmd_status(sc, &add_sta_cmd, &status);
2987 case IWM_ADD_STA_SUCCESS:
2991 device_printf(sc->sc_dev, "IWM_ADD_STA failed\n");
2999 iwm_mvm_add_sta(struct iwm_softc *sc, struct iwm_node *in)
3003 ret = iwm_mvm_sta_send_to_fw(sc, in, 0);
3011 iwm_mvm_update_sta(struct iwm_softc *sc, struct iwm_node *in)
3013 return iwm_mvm_sta_send_to_fw(sc, in, 1);
3017 iwm_mvm_add_int_sta_common(struct iwm_softc *sc, struct iwm_int_sta *sta,
3018 const uint8_t *addr, uint16_t mac_id, uint16_t color)
3020 struct iwm_mvm_add_sta_cmd_v6 cmd;
3024 memset(&cmd, 0, sizeof(cmd));
3025 cmd.sta_id = sta->sta_id;
3026 cmd.mac_id_n_color = htole32(IWM_FW_CMD_ID_AND_COLOR(mac_id, color));
3028 cmd.tfd_queue_msk = htole32(sta->tfd_queue_msk);
3031 IEEE80211_ADDR_COPY(cmd.addr, addr);
3033 ret = iwm_mvm_send_add_sta_cmd_status(sc, &cmd, &status);
3038 case IWM_ADD_STA_SUCCESS:
3039 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
3040 "%s: Internal station added.\n", __func__);
3043 device_printf(sc->sc_dev,
3044 "%s: Add internal station failed, status=0x%x\n",
3053 iwm_mvm_add_aux_sta(struct iwm_softc *sc)
3057 sc->sc_aux_sta.sta_id = 3;
3058 sc->sc_aux_sta.tfd_queue_msk = 0;
3060 ret = iwm_mvm_add_int_sta_common(sc,
3061 &sc->sc_aux_sta, NULL, IWM_MAC_INDEX_AUX, 0);
3064 memset(&sc->sc_aux_sta, 0, sizeof(sc->sc_aux_sta));
3077 iwm_mvm_update_quotas(struct iwm_softc *sc, struct iwm_node *in)
3079 struct iwm_time_quota_cmd cmd;
3080 int i, idx, ret, num_active_macs, quota, quota_rem;
3081 int colors[IWM_MAX_BINDINGS] = { -1, -1, -1, -1, };
3082 int n_ifs[IWM_MAX_BINDINGS] = {0, };
3085 memset(&cmd, 0, sizeof(cmd));
3087 /* currently, PHY ID == binding ID */
3089 id = in->in_phyctxt->id;
3090 KASSERT(id < IWM_MAX_BINDINGS, ("invalid id"));
3091 colors[id] = in->in_phyctxt->color;
3098 * The FW's scheduling session consists of
3099 * IWM_MVM_MAX_QUOTA fragments. Divide these fragments
3100 * equally between all the bindings that require quota
3102 num_active_macs = 0;
3103 for (i = 0; i < IWM_MAX_BINDINGS; i++) {
3104 cmd.quotas[i].id_and_color = htole32(IWM_FW_CTXT_INVALID);
3105 num_active_macs += n_ifs[i];
3110 if (num_active_macs) {
3111 quota = IWM_MVM_MAX_QUOTA / num_active_macs;
3112 quota_rem = IWM_MVM_MAX_QUOTA % num_active_macs;
3115 for (idx = 0, i = 0; i < IWM_MAX_BINDINGS; i++) {
3119 cmd.quotas[idx].id_and_color =
3120 htole32(IWM_FW_CMD_ID_AND_COLOR(i, colors[i]));
3122 if (n_ifs[i] <= 0) {
3123 cmd.quotas[idx].quota = htole32(0);
3124 cmd.quotas[idx].max_duration = htole32(0);
3126 cmd.quotas[idx].quota = htole32(quota * n_ifs[i]);
3127 cmd.quotas[idx].max_duration = htole32(0);
3132 /* Give the remainder of the session to the first binding */
3133 cmd.quotas[0].quota = htole32(le32toh(cmd.quotas[0].quota) + quota_rem);
3135 ret = iwm_mvm_send_cmd_pdu(sc, IWM_TIME_QUOTA_CMD, IWM_CMD_SYNC,
3138 device_printf(sc->sc_dev,
3139 "%s: Failed to send quota: %d\n", __func__, ret);
3148 * ieee80211 routines
3152 * Change to AUTH state in 80211 state machine. Roughly matches what
3153 * Linux does in bss_info_changed().
3156 iwm_auth(struct ieee80211vap *vap, struct iwm_softc *sc)
3158 struct ieee80211_node *ni;
3159 struct iwm_node *in;
3160 struct iwm_vap *iv = IWM_VAP(vap);
3162 uint32_t min_duration;
3166 * XXX i have a feeling that the vap node is being
3167 * freed from underneath us. Grr.
3169 ni = ieee80211_ref_node(vap->iv_bss);
3171 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_STATE,
3172 "%s: called; vap=%p, bss ni=%p\n",
3179 error = iwm_allow_mcast(vap, sc);
3181 device_printf(sc->sc_dev,
3182 "%s: failed to set multicast\n", __func__);
3187 * This is where it deviates from what Linux does.
3189 * Linux iwlwifi doesn't reset the nic each time, nor does it
3190 * call ctxt_add() here. Instead, it adds it during vap creation,
3191 * and always does does a mac_ctx_changed().
3193 * The openbsd port doesn't attempt to do that - it reset things
3194 * at odd states and does the add here.
3196 * So, until the state handling is fixed (ie, we never reset
3197 * the NIC except for a firmware failure, which should drag
3198 * the NIC back to IDLE, re-setup and re-add all the mac/phy
3199 * contexts that are required), let's do a dirty hack here.
3201 if (iv->is_uploaded) {
3202 if ((error = iwm_mvm_mac_ctxt_changed(sc, vap)) != 0) {
3203 device_printf(sc->sc_dev,
3204 "%s: failed to add MAC\n", __func__);
3208 if ((error = iwm_mvm_mac_ctxt_add(sc, vap)) != 0) {
3209 device_printf(sc->sc_dev,
3210 "%s: failed to add MAC\n", __func__);
3215 if ((error = iwm_mvm_phy_ctxt_changed(sc, &sc->sc_phyctxt[0],
3216 in->in_ni.ni_chan, 1, 1)) != 0) {
3217 device_printf(sc->sc_dev,
3218 "%s: failed add phy ctxt\n", __func__);
3221 in->in_phyctxt = &sc->sc_phyctxt[0];
3223 if ((error = iwm_mvm_binding_add_vif(sc, in)) != 0) {
3224 device_printf(sc->sc_dev,
3225 "%s: binding cmd\n", __func__);
3229 if ((error = iwm_mvm_add_sta(sc, in)) != 0) {
3230 device_printf(sc->sc_dev,
3231 "%s: failed to add MAC\n", __func__);
3235 /* a bit superfluous? */
3236 while (sc->sc_auth_prot)
3237 msleep(&sc->sc_auth_prot, &sc->sc_mtx, 0, "iwmauth", 0);
3238 sc->sc_auth_prot = 1;
3240 duration = min(IWM_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
3241 200 + in->in_ni.ni_intval);
3242 min_duration = min(IWM_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
3243 100 + in->in_ni.ni_intval);
3244 iwm_mvm_protect_session(sc, in, duration, min_duration, 500);
3246 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
3247 "%s: waiting for auth_prot\n", __func__);
3248 while (sc->sc_auth_prot != 2) {
3250 * well, meh, but if the kernel is sleeping for half a
3251 * second, we have bigger problems
3253 if (sc->sc_auth_prot == 0) {
3254 device_printf(sc->sc_dev,
3255 "%s: missed auth window!\n", __func__);
3258 } else if (sc->sc_auth_prot == -1) {
3259 device_printf(sc->sc_dev,
3260 "%s: no time event, denied!\n", __func__);
3261 sc->sc_auth_prot = 0;
3265 msleep(&sc->sc_auth_prot, &sc->sc_mtx, 0, "iwmau2", 0);
3267 IWM_DPRINTF(sc, IWM_DEBUG_RESET, "<-%s\n", __func__);
3270 ieee80211_free_node(ni);
3275 iwm_assoc(struct ieee80211vap *vap, struct iwm_softc *sc)
3277 struct iwm_node *in = IWM_NODE(vap->iv_bss);
3280 if ((error = iwm_mvm_update_sta(sc, in)) != 0) {
3281 device_printf(sc->sc_dev,
3282 "%s: failed to update STA\n", __func__);
3287 if ((error = iwm_mvm_mac_ctxt_changed(sc, vap)) != 0) {
3288 device_printf(sc->sc_dev,
3289 "%s: failed to update MAC\n", __func__);
3297 iwm_release(struct iwm_softc *sc, struct iwm_node *in)
3300 * Ok, so *technically* the proper set of calls for going
3301 * from RUN back to SCAN is:
3303 * iwm_mvm_power_mac_disable(sc, in);
3304 * iwm_mvm_mac_ctxt_changed(sc, in);
3305 * iwm_mvm_rm_sta(sc, in);
3306 * iwm_mvm_update_quotas(sc, NULL);
3307 * iwm_mvm_mac_ctxt_changed(sc, in);
3308 * iwm_mvm_binding_remove_vif(sc, in);
3309 * iwm_mvm_mac_ctxt_remove(sc, in);
3311 * However, that freezes the device not matter which permutations
3312 * and modifications are attempted. Obviously, this driver is missing
3313 * something since it works in the Linux driver, but figuring out what
3314 * is missing is a little more complicated. Now, since we're going
3315 * back to nothing anyway, we'll just do a complete device reset.
3316 * Up your's, device!
3318 //iwm_mvm_flush_tx_path(sc, 0xf, 1);
3319 iwm_stop_device(sc);
3328 iwm_mvm_power_mac_disable(sc, in);
3330 if ((error = iwm_mvm_mac_ctxt_changed(sc, in)) != 0) {
3331 device_printf(sc->sc_dev, "mac ctxt change fail 1 %d\n", error);
3335 if ((error = iwm_mvm_rm_sta(sc, in)) != 0) {
3336 device_printf(sc->sc_dev, "sta remove fail %d\n", error);
3339 error = iwm_mvm_rm_sta(sc, in);
3341 iwm_mvm_update_quotas(sc, NULL);
3342 if ((error = iwm_mvm_mac_ctxt_changed(sc, in)) != 0) {
3343 device_printf(sc->sc_dev, "mac ctxt change fail 2 %d\n", error);
3346 iwm_mvm_binding_remove_vif(sc, in);
3348 iwm_mvm_mac_ctxt_remove(sc, in);
3354 static struct ieee80211_node *
3355 iwm_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
3357 return malloc(sizeof (struct iwm_node), M_80211_NODE,
3362 iwm_setrates(struct iwm_softc *sc, struct iwm_node *in)
3364 struct ieee80211_node *ni = &in->in_ni;
3365 struct iwm_lq_cmd *lq = &in->in_lq;
3366 int nrates = ni->ni_rates.rs_nrates;
3367 int i, ridx, tab = 0;
3370 if (nrates > nitems(lq->rs_table)) {
3371 device_printf(sc->sc_dev,
3372 "%s: node supports %d rates, driver handles "
3373 "only %zu\n", __func__, nrates, nitems(lq->rs_table));
3378 * XXX .. and most of iwm_node is not initialised explicitly;
3379 * it's all just 0x0 passed to the firmware.
3382 /* first figure out which rates we should support */
3383 /* XXX TODO: this isn't 11n aware /at all/ */
3384 memset(&in->in_ridx, -1, sizeof(in->in_ridx));
3385 IWM_DPRINTF(sc, IWM_DEBUG_TXRATE,
3386 "%s: nrates=%d\n", __func__, nrates);
3387 for (i = 0; i < nrates; i++) {
3388 int rate = ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL;
3390 /* Map 802.11 rate to HW rate index. */
3391 for (ridx = 0; ridx <= IWM_RIDX_MAX; ridx++)
3392 if (iwm_rates[ridx].rate == rate)
3394 if (ridx > IWM_RIDX_MAX) {
3395 device_printf(sc->sc_dev,
3396 "%s: WARNING: device rate for %d not found!\n",
3399 IWM_DPRINTF(sc, IWM_DEBUG_TXRATE,
3400 "%s: rate: i: %d, rate=%d, ridx=%d\n",
3405 in->in_ridx[i] = ridx;
3409 /* then construct a lq_cmd based on those */
3410 memset(lq, 0, sizeof(*lq));
3411 lq->sta_id = IWM_STATION_ID;
3414 * are these used? (we don't do SISO or MIMO)
3415 * need to set them to non-zero, though, or we get an error.
3417 lq->single_stream_ant_msk = 1;
3418 lq->dual_stream_ant_msk = 1;
3421 * Build the actual rate selection table.
3422 * The lowest bits are the rates. Additionally,
3423 * CCK needs bit 9 to be set. The rest of the bits
3424 * we add to the table select the tx antenna
3425 * Note that we add the rates in the highest rate first
3426 * (opposite of ni_rates).
3429 * XXX TODO: this should be looping over the min of nrates
3430 * and LQ_MAX_RETRY_NUM. Sigh.
3432 for (i = 0; i < nrates; i++) {
3436 txant = IWM_FW_VALID_TX_ANT(sc);
3437 nextant = 1<<(ffs(txant)-1);
3441 * Map the rate id into a rate index into
3442 * our hardware table containing the
3443 * configuration to use for this rate.
3445 ridx = in->in_ridx[(nrates-1)-i];
3446 tab = iwm_rates[ridx].plcp;
3447 tab |= nextant << IWM_RATE_MCS_ANT_POS;
3448 if (IWM_RIDX_IS_CCK(ridx))
3449 tab |= IWM_RATE_MCS_CCK_MSK;
3450 IWM_DPRINTF(sc, IWM_DEBUG_TXRATE,
3451 "station rate i=%d, rate=%d, hw=%x\n",
3452 i, iwm_rates[ridx].rate, tab);
3453 lq->rs_table[i] = htole32(tab);
3455 /* then fill the rest with the lowest possible rate */
3456 for (i = nrates; i < nitems(lq->rs_table); i++) {
3457 KASSERT(tab != 0, ("invalid tab"));
3458 lq->rs_table[i] = htole32(tab);
3463 iwm_media_change(struct ifnet *ifp)
3465 struct ieee80211vap *vap = ifp->if_softc;
3466 struct ieee80211com *ic = vap->iv_ic;
3467 struct iwm_softc *sc = ic->ic_softc;
3470 error = ieee80211_media_change(ifp);
3471 if (error != ENETRESET)
3475 if (ic->ic_nrunning > 0) {
3485 iwm_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
3487 struct iwm_vap *ivp = IWM_VAP(vap);
3488 struct ieee80211com *ic = vap->iv_ic;
3489 struct iwm_softc *sc = ic->ic_softc;
3490 struct iwm_node *in;
3493 IWM_DPRINTF(sc, IWM_DEBUG_STATE,
3494 "switching state %s -> %s\n",
3495 ieee80211_state_name[vap->iv_state],
3496 ieee80211_state_name[nstate]);
3497 IEEE80211_UNLOCK(ic);
3499 /* disable beacon filtering if we're hopping out of RUN */
3500 if (vap->iv_state == IEEE80211_S_RUN && nstate != vap->iv_state) {
3501 iwm_mvm_disable_beacon_filter(sc);
3503 if (((in = IWM_NODE(vap->iv_bss)) != NULL))
3506 iwm_release(sc, NULL);
3509 * It's impossible to directly go RUN->SCAN. If we iwm_release()
3510 * above then the card will be completely reinitialized,
3511 * so the driver must do everything necessary to bring the card
3512 * from INIT to SCAN.
3514 * Additionally, upon receiving deauth frame from AP,
3515 * OpenBSD 802.11 stack puts the driver in IEEE80211_S_AUTH
3516 * state. This will also fail with this driver, so bring the FSM
3517 * from IEEE80211_S_RUN to IEEE80211_S_SCAN in this case as well.
3519 * XXX TODO: fix this for FreeBSD!
3521 if (nstate == IEEE80211_S_SCAN ||
3522 nstate == IEEE80211_S_AUTH ||
3523 nstate == IEEE80211_S_ASSOC) {
3524 IWM_DPRINTF(sc, IWM_DEBUG_STATE,
3525 "Force transition to INIT; MGT=%d\n", arg);
3528 vap->iv_newstate(vap, IEEE80211_S_INIT, arg);
3529 IWM_DPRINTF(sc, IWM_DEBUG_STATE,
3530 "Going INIT->SCAN\n");
3531 nstate = IEEE80211_S_SCAN;
3532 IEEE80211_UNLOCK(ic);
3538 case IEEE80211_S_INIT:
3539 sc->sc_scanband = 0;
3542 case IEEE80211_S_AUTH:
3543 if ((error = iwm_auth(vap, sc)) != 0) {
3544 device_printf(sc->sc_dev,
3545 "%s: could not move to auth state: %d\n",
3551 case IEEE80211_S_ASSOC:
3552 if ((error = iwm_assoc(vap, sc)) != 0) {
3553 device_printf(sc->sc_dev,
3554 "%s: failed to associate: %d\n", __func__,
3560 case IEEE80211_S_RUN:
3562 struct iwm_host_cmd cmd = {
3564 .len = { sizeof(in->in_lq), },
3565 .flags = IWM_CMD_SYNC,
3568 /* Update the association state, now we have it all */
3569 /* (eg associd comes in at this point */
3570 error = iwm_assoc(vap, sc);
3572 device_printf(sc->sc_dev,
3573 "%s: failed to update association state: %d\n",
3579 in = IWM_NODE(vap->iv_bss);
3580 iwm_mvm_power_mac_update_mode(sc, in);
3581 iwm_mvm_enable_beacon_filter(sc, in);
3582 iwm_mvm_update_quotas(sc, in);
3583 iwm_setrates(sc, in);
3585 cmd.data[0] = &in->in_lq;
3586 if ((error = iwm_send_cmd(sc, &cmd)) != 0) {
3587 device_printf(sc->sc_dev,
3588 "%s: IWM_LQ_CMD failed\n", __func__);
3600 return (ivp->iv_newstate(vap, nstate, arg));
3604 iwm_endscan_cb(void *arg, int pending)
3606 struct iwm_softc *sc = arg;
3607 struct ieee80211com *ic = &sc->sc_ic;
3611 IWM_DPRINTF(sc, IWM_DEBUG_SCAN | IWM_DEBUG_TRACE,
3616 if (sc->sc_scanband == IEEE80211_CHAN_2GHZ &&
3617 sc->sc_nvm.sku_cap_band_52GHz_enable) {
3619 if ((error = iwm_mvm_scan_request(sc,
3620 IEEE80211_CHAN_5GHZ, 0, NULL, 0)) != 0) {
3621 device_printf(sc->sc_dev, "could not initiate scan\n");
3630 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
3632 sc->sc_scanband = 0;
3638 iwm_init_hw(struct iwm_softc *sc)
3640 struct ieee80211com *ic = &sc->sc_ic;
3643 if ((error = iwm_start_hw(sc)) != 0)
3646 if ((error = iwm_run_init_mvm_ucode(sc, 0)) != 0) {
3651 * should stop and start HW since that INIT
3654 iwm_stop_device(sc);
3655 if ((error = iwm_start_hw(sc)) != 0) {
3656 device_printf(sc->sc_dev, "could not initialize hardware\n");
3660 /* omstart, this time with the regular firmware */
3661 error = iwm_mvm_load_ucode_wait_alive(sc, IWM_UCODE_TYPE_REGULAR);
3663 device_printf(sc->sc_dev, "could not load firmware\n");
3667 if ((error = iwm_send_tx_ant_cfg(sc, IWM_FW_VALID_TX_ANT(sc))) != 0)
3670 /* Send phy db control command and then phy db calibration*/
3671 if ((error = iwm_send_phy_db_data(sc)) != 0)
3674 if ((error = iwm_send_phy_cfg_cmd(sc)) != 0)
3677 /* Add auxiliary station for scanning */
3678 if ((error = iwm_mvm_add_aux_sta(sc)) != 0)
3681 for (i = 0; i < IWM_NUM_PHY_CTX; i++) {
3683 * The channel used here isn't relevant as it's
3684 * going to be overwritten in the other flows.
3685 * For now use the first channel we have.
3687 if ((error = iwm_mvm_phy_ctxt_add(sc,
3688 &sc->sc_phyctxt[i], &ic->ic_channels[1], 1, 1)) != 0)
3692 error = iwm_mvm_power_update_device(sc);
3696 /* Mark TX rings as active. */
3697 for (qid = 0; qid < 4; qid++) {
3698 iwm_enable_txq(sc, qid, qid);
3704 iwm_stop_device(sc);
3708 /* Allow multicast from our BSSID. */
3710 iwm_allow_mcast(struct ieee80211vap *vap, struct iwm_softc *sc)
3712 struct ieee80211_node *ni = vap->iv_bss;
3713 struct iwm_mcast_filter_cmd *cmd;
3717 size = roundup(sizeof(*cmd), 4);
3718 cmd = malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO);
3721 cmd->filter_own = 1;
3725 IEEE80211_ADDR_COPY(cmd->bssid, ni->ni_bssid);
3727 error = iwm_mvm_send_cmd_pdu(sc, IWM_MCAST_FILTER_CMD,
3728 IWM_CMD_SYNC, size, cmd);
3729 free(cmd, M_DEVBUF);
3735 iwm_init(struct iwm_softc *sc)
3739 if (sc->sc_flags & IWM_FLAG_HW_INITED) {
3742 sc->sc_generation++;
3743 sc->sc_flags &= ~IWM_FLAG_STOPPED;
3745 if ((error = iwm_init_hw(sc)) != 0) {
3751 * Ok, firmware loaded and we are jogging
3753 sc->sc_flags |= IWM_FLAG_HW_INITED;
3754 callout_reset(&sc->sc_watchdog_to, hz, iwm_watchdog, sc);
3758 iwm_transmit(struct ieee80211com *ic, struct mbuf *m)
3760 struct iwm_softc *sc;
3766 if ((sc->sc_flags & IWM_FLAG_HW_INITED) == 0) {
3770 error = mbufq_enqueue(&sc->sc_snd, m);
3781 * Dequeue packets from sendq and call send.
3784 iwm_start(struct iwm_softc *sc)
3786 struct ieee80211_node *ni;
3790 IWM_DPRINTF(sc, IWM_DEBUG_XMIT | IWM_DEBUG_TRACE, "->%s\n", __func__);
3791 while (sc->qfullmsk == 0 &&
3792 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
3793 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
3794 if (iwm_tx(sc, m, ni, ac) != 0) {
3795 if_inc_counter(ni->ni_vap->iv_ifp,
3796 IFCOUNTER_OERRORS, 1);
3797 ieee80211_free_node(ni);
3800 sc->sc_tx_timer = 15;
3802 IWM_DPRINTF(sc, IWM_DEBUG_XMIT | IWM_DEBUG_TRACE, "<-%s\n", __func__);
3806 iwm_stop(struct iwm_softc *sc)
3809 sc->sc_flags &= ~IWM_FLAG_HW_INITED;
3810 sc->sc_flags |= IWM_FLAG_STOPPED;
3811 sc->sc_generation++;
3812 sc->sc_scanband = 0;
3813 sc->sc_auth_prot = 0;
3814 sc->sc_tx_timer = 0;
3815 iwm_stop_device(sc);
3819 iwm_watchdog(void *arg)
3821 struct iwm_softc *sc = arg;
3823 if (sc->sc_tx_timer > 0) {
3824 if (--sc->sc_tx_timer == 0) {
3825 device_printf(sc->sc_dev, "device timeout\n");
3830 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
3834 callout_reset(&sc->sc_watchdog_to, hz, iwm_watchdog, sc);
3838 iwm_parent(struct ieee80211com *ic)
3840 struct iwm_softc *sc = ic->ic_softc;
3844 if (ic->ic_nrunning > 0) {
3845 if (!(sc->sc_flags & IWM_FLAG_HW_INITED)) {
3849 } else if (sc->sc_flags & IWM_FLAG_HW_INITED)
3853 ieee80211_start_all(ic);
3857 * The interrupt side of things
3861 * error dumping routines are from iwlwifi/mvm/utils.c
3865 * Note: This structure is read from the device with IO accesses,
3866 * and the reading already does the endian conversion. As it is
3867 * read with uint32_t-sized accesses, any members with a different size
3868 * need to be ordered correctly though!
3870 struct iwm_error_event_table {
3871 uint32_t valid; /* (nonzero) valid, (0) log is empty */
3872 uint32_t error_id; /* type of error */
3873 uint32_t pc; /* program counter */
3874 uint32_t blink1; /* branch link */
3875 uint32_t blink2; /* branch link */
3876 uint32_t ilink1; /* interrupt link */
3877 uint32_t ilink2; /* interrupt link */
3878 uint32_t data1; /* error-specific data */
3879 uint32_t data2; /* error-specific data */
3880 uint32_t data3; /* error-specific data */
3881 uint32_t bcon_time; /* beacon timer */
3882 uint32_t tsf_low; /* network timestamp function timer */
3883 uint32_t tsf_hi; /* network timestamp function timer */
3884 uint32_t gp1; /* GP1 timer register */
3885 uint32_t gp2; /* GP2 timer register */
3886 uint32_t gp3; /* GP3 timer register */
3887 uint32_t ucode_ver; /* uCode version */
3888 uint32_t hw_ver; /* HW Silicon version */
3889 uint32_t brd_ver; /* HW board version */
3890 uint32_t log_pc; /* log program counter */
3891 uint32_t frame_ptr; /* frame pointer */
3892 uint32_t stack_ptr; /* stack pointer */
3893 uint32_t hcmd; /* last host command header */
3894 uint32_t isr0; /* isr status register LMPM_NIC_ISR0:
3896 uint32_t isr1; /* isr status register LMPM_NIC_ISR1:
3898 uint32_t isr2; /* isr status register LMPM_NIC_ISR2:
3900 uint32_t isr3; /* isr status register LMPM_NIC_ISR3:
3902 uint32_t isr4; /* isr status register LMPM_NIC_ISR4:
3904 uint32_t isr_pref; /* isr status register LMPM_NIC_PREF_STAT */
3905 uint32_t wait_event; /* wait event() caller address */
3906 uint32_t l2p_control; /* L2pControlField */
3907 uint32_t l2p_duration; /* L2pDurationField */
3908 uint32_t l2p_mhvalid; /* L2pMhValidBits */
3909 uint32_t l2p_addr_match; /* L2pAddrMatchStat */
3910 uint32_t lmpm_pmg_sel; /* indicate which clocks are turned on
3912 uint32_t u_timestamp; /* indicate when the date and time of the
3914 uint32_t flow_handler; /* FH read/write pointers, RX credit */
3917 #define ERROR_START_OFFSET (1 * sizeof(uint32_t))
3918 #define ERROR_ELEM_SIZE (7 * sizeof(uint32_t))
3924 } advanced_lookup[] = {
3925 { "NMI_INTERRUPT_WDG", 0x34 },
3926 { "SYSASSERT", 0x35 },
3927 { "UCODE_VERSION_MISMATCH", 0x37 },
3928 { "BAD_COMMAND", 0x38 },
3929 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
3930 { "FATAL_ERROR", 0x3D },
3931 { "NMI_TRM_HW_ERR", 0x46 },
3932 { "NMI_INTERRUPT_TRM", 0x4C },
3933 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
3934 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
3935 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
3936 { "NMI_INTERRUPT_HOST", 0x66 },
3937 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
3938 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
3939 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
3940 { "ADVANCED_SYSASSERT", 0 },
3944 iwm_desc_lookup(uint32_t num)
3948 for (i = 0; i < nitems(advanced_lookup) - 1; i++)
3949 if (advanced_lookup[i].num == num)
3950 return advanced_lookup[i].name;
3952 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
3953 return advanced_lookup[i].name;
3957 * Support for dumping the error log seemed like a good idea ...
3958 * but it's mostly hex junk and the only sensible thing is the
3959 * hw/ucode revision (which we know anyway). Since it's here,
3960 * I'll just leave it in, just in case e.g. the Intel guys want to
3961 * help us decipher some "ADVANCED_SYSASSERT" later.
3964 iwm_nic_error(struct iwm_softc *sc)
3966 struct iwm_error_event_table table;
3969 device_printf(sc->sc_dev, "dumping device error log\n");
3970 base = sc->sc_uc.uc_error_event_table;
3971 if (base < 0x800000 || base >= 0x80C000) {
3972 device_printf(sc->sc_dev,
3973 "Not valid error log pointer 0x%08x\n", base);
3977 if (iwm_read_mem(sc, base, &table, sizeof(table)/sizeof(uint32_t)) != 0) {
3978 device_printf(sc->sc_dev, "reading errlog failed\n");
3983 device_printf(sc->sc_dev, "errlog not found, skipping\n");
3987 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
3988 device_printf(sc->sc_dev, "Start IWL Error Log Dump:\n");
3989 device_printf(sc->sc_dev, "Status: 0x%x, count: %d\n",
3990 sc->sc_flags, table.valid);
3993 device_printf(sc->sc_dev, "0x%08X | %-28s\n", table.error_id,
3994 iwm_desc_lookup(table.error_id));
3995 device_printf(sc->sc_dev, "%08X | uPc\n", table.pc);
3996 device_printf(sc->sc_dev, "%08X | branchlink1\n", table.blink1);
3997 device_printf(sc->sc_dev, "%08X | branchlink2\n", table.blink2);
3998 device_printf(sc->sc_dev, "%08X | interruptlink1\n", table.ilink1);
3999 device_printf(sc->sc_dev, "%08X | interruptlink2\n", table.ilink2);
4000 device_printf(sc->sc_dev, "%08X | data1\n", table.data1);
4001 device_printf(sc->sc_dev, "%08X | data2\n", table.data2);
4002 device_printf(sc->sc_dev, "%08X | data3\n", table.data3);
4003 device_printf(sc->sc_dev, "%08X | beacon time\n", table.bcon_time);
4004 device_printf(sc->sc_dev, "%08X | tsf low\n", table.tsf_low);
4005 device_printf(sc->sc_dev, "%08X | tsf hi\n", table.tsf_hi);
4006 device_printf(sc->sc_dev, "%08X | time gp1\n", table.gp1);
4007 device_printf(sc->sc_dev, "%08X | time gp2\n", table.gp2);
4008 device_printf(sc->sc_dev, "%08X | time gp3\n", table.gp3);
4009 device_printf(sc->sc_dev, "%08X | uCode version\n", table.ucode_ver);
4010 device_printf(sc->sc_dev, "%08X | hw version\n", table.hw_ver);
4011 device_printf(sc->sc_dev, "%08X | board version\n", table.brd_ver);
4012 device_printf(sc->sc_dev, "%08X | hcmd\n", table.hcmd);
4013 device_printf(sc->sc_dev, "%08X | isr0\n", table.isr0);
4014 device_printf(sc->sc_dev, "%08X | isr1\n", table.isr1);
4015 device_printf(sc->sc_dev, "%08X | isr2\n", table.isr2);
4016 device_printf(sc->sc_dev, "%08X | isr3\n", table.isr3);
4017 device_printf(sc->sc_dev, "%08X | isr4\n", table.isr4);
4018 device_printf(sc->sc_dev, "%08X | isr_pref\n", table.isr_pref);
4019 device_printf(sc->sc_dev, "%08X | wait_event\n", table.wait_event);
4020 device_printf(sc->sc_dev, "%08X | l2p_control\n", table.l2p_control);
4021 device_printf(sc->sc_dev, "%08X | l2p_duration\n", table.l2p_duration);
4022 device_printf(sc->sc_dev, "%08X | l2p_mhvalid\n", table.l2p_mhvalid);
4023 device_printf(sc->sc_dev, "%08X | l2p_addr_match\n", table.l2p_addr_match);
4024 device_printf(sc->sc_dev, "%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
4025 device_printf(sc->sc_dev, "%08X | timestamp\n", table.u_timestamp);
4026 device_printf(sc->sc_dev, "%08X | flow_handler\n", table.flow_handler);
4030 #define SYNC_RESP_STRUCT(_var_, _pkt_) \
4032 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);\
4033 _var_ = (void *)((_pkt_)+1); \
4034 } while (/*CONSTCOND*/0)
4036 #define SYNC_RESP_PTR(_ptr_, _len_, _pkt_) \
4038 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);\
4039 _ptr_ = (void *)((_pkt_)+1); \
4040 } while (/*CONSTCOND*/0)
4042 #define ADVANCE_RXQ(sc) (sc->rxq.cur = (sc->rxq.cur + 1) % IWM_RX_RING_COUNT);
4045 * Process an IWM_CSR_INT_BIT_FH_RX or IWM_CSR_INT_BIT_SW_RX interrupt.
4046 * Basic structure from if_iwn
4049 iwm_notif_intr(struct iwm_softc *sc)
4053 bus_dmamap_sync(sc->rxq.stat_dma.tag, sc->rxq.stat_dma.map,
4054 BUS_DMASYNC_POSTREAD);
4056 hw = le16toh(sc->rxq.stat->closed_rb_num) & 0xfff;
4057 while (sc->rxq.cur != hw) {
4058 struct iwm_rx_ring *ring = &sc->rxq;
4059 struct iwm_rx_data *data = &sc->rxq.data[sc->rxq.cur];
4060 struct iwm_rx_packet *pkt;
4061 struct iwm_cmd_response *cresp;
4064 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
4065 BUS_DMASYNC_POSTREAD);
4066 pkt = mtod(data->m, struct iwm_rx_packet *);
4068 qid = pkt->hdr.qid & ~0x80;
4071 IWM_DPRINTF(sc, IWM_DEBUG_INTR,
4072 "rx packet qid=%d idx=%d flags=%x type=%x %d %d\n",
4073 pkt->hdr.qid & ~0x80, pkt->hdr.idx, pkt->hdr.flags,
4074 pkt->hdr.code, sc->rxq.cur, hw);
4077 * randomly get these from the firmware, no idea why.
4078 * they at least seem harmless, so just ignore them for now
4080 if (__predict_false((pkt->hdr.code == 0 && qid == 0 && idx == 0)
4081 || pkt->len_n_flags == htole32(0x55550000))) {
4086 switch (pkt->hdr.code) {
4087 case IWM_REPLY_RX_PHY_CMD:
4088 iwm_mvm_rx_rx_phy_cmd(sc, pkt, data);
4091 case IWM_REPLY_RX_MPDU_CMD:
4092 iwm_mvm_rx_rx_mpdu(sc, pkt, data);
4096 iwm_mvm_rx_tx_cmd(sc, pkt, data);
4099 case IWM_MISSED_BEACONS_NOTIFICATION: {
4100 struct iwm_missed_beacons_notif *resp;
4103 /* XXX look at mac_id to determine interface ID */
4104 struct ieee80211com *ic = &sc->sc_ic;
4105 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4107 SYNC_RESP_STRUCT(resp, pkt);
4108 missed = le32toh(resp->consec_missed_beacons);
4110 IWM_DPRINTF(sc, IWM_DEBUG_BEACON | IWM_DEBUG_STATE,
4111 "%s: MISSED_BEACON: mac_id=%d, "
4112 "consec_since_last_rx=%d, consec=%d, num_expect=%d "
4115 le32toh(resp->mac_id),
4116 le32toh(resp->consec_missed_beacons_since_last_rx),
4117 le32toh(resp->consec_missed_beacons),
4118 le32toh(resp->num_expected_beacons),
4119 le32toh(resp->num_recvd_beacons));
4125 /* XXX no net80211 locking? */
4126 if (vap->iv_state == IEEE80211_S_RUN &&
4127 (ic->ic_flags & IEEE80211_F_SCAN) == 0) {
4128 if (missed > vap->iv_bmissthreshold) {
4129 /* XXX bad locking; turn into task */
4131 ieee80211_beacon_miss(ic);
4138 case IWM_MVM_ALIVE: {
4139 struct iwm_mvm_alive_resp *resp;
4140 SYNC_RESP_STRUCT(resp, pkt);
4142 sc->sc_uc.uc_error_event_table
4143 = le32toh(resp->error_event_table_ptr);
4144 sc->sc_uc.uc_log_event_table
4145 = le32toh(resp->log_event_table_ptr);
4146 sc->sched_base = le32toh(resp->scd_base_ptr);
4147 sc->sc_uc.uc_ok = resp->status == IWM_ALIVE_STATUS_OK;
4149 sc->sc_uc.uc_intr = 1;
4153 case IWM_CALIB_RES_NOTIF_PHY_DB: {
4154 struct iwm_calib_res_notif_phy_db *phy_db_notif;
4155 SYNC_RESP_STRUCT(phy_db_notif, pkt);
4157 iwm_phy_db_set_section(sc, phy_db_notif);
4161 case IWM_STATISTICS_NOTIFICATION: {
4162 struct iwm_notif_statistics *stats;
4163 SYNC_RESP_STRUCT(stats, pkt);
4164 memcpy(&sc->sc_stats, stats, sizeof(sc->sc_stats));
4165 sc->sc_noise = iwm_get_noise(&stats->rx.general);
4168 case IWM_NVM_ACCESS_CMD:
4169 if (sc->sc_wantresp == ((qid << 16) | idx)) {
4170 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
4171 BUS_DMASYNC_POSTREAD);
4172 memcpy(sc->sc_cmd_resp,
4173 pkt, sizeof(sc->sc_cmd_resp));
4177 case IWM_PHY_CONFIGURATION_CMD:
4178 case IWM_TX_ANT_CONFIGURATION_CMD:
4180 case IWM_MAC_CONTEXT_CMD:
4181 case IWM_REPLY_SF_CFG_CMD:
4182 case IWM_POWER_TABLE_CMD:
4183 case IWM_PHY_CONTEXT_CMD:
4184 case IWM_BINDING_CONTEXT_CMD:
4185 case IWM_TIME_EVENT_CMD:
4186 case IWM_SCAN_REQUEST_CMD:
4187 case IWM_REPLY_BEACON_FILTERING_CMD:
4188 case IWM_MAC_PM_POWER_TABLE:
4189 case IWM_TIME_QUOTA_CMD:
4190 case IWM_REMOVE_STA:
4191 case IWM_TXPATH_FLUSH:
4193 SYNC_RESP_STRUCT(cresp, pkt);
4194 if (sc->sc_wantresp == ((qid << 16) | idx)) {
4195 memcpy(sc->sc_cmd_resp,
4196 pkt, sizeof(*pkt)+sizeof(*cresp));
4201 case 0x6c: /* IWM_PHY_DB_CMD, no idea why it's not in fw-api.h */
4204 case IWM_INIT_COMPLETE_NOTIF:
4205 sc->sc_init_complete = 1;
4206 wakeup(&sc->sc_init_complete);
4209 case IWM_SCAN_COMPLETE_NOTIFICATION: {
4210 struct iwm_scan_complete_notif *notif;
4211 SYNC_RESP_STRUCT(notif, pkt);
4212 taskqueue_enqueue(sc->sc_tq, &sc->sc_es_task);
4215 case IWM_REPLY_ERROR: {
4216 struct iwm_error_resp *resp;
4217 SYNC_RESP_STRUCT(resp, pkt);
4219 device_printf(sc->sc_dev,
4220 "firmware error 0x%x, cmd 0x%x\n",
4221 le32toh(resp->error_type),
4225 case IWM_TIME_EVENT_NOTIFICATION: {
4226 struct iwm_time_event_notif *notif;
4227 SYNC_RESP_STRUCT(notif, pkt);
4229 if (notif->status) {
4230 if (le32toh(notif->action) &
4231 IWM_TE_V2_NOTIF_HOST_EVENT_START)
4232 sc->sc_auth_prot = 2;
4234 sc->sc_auth_prot = 0;
4236 sc->sc_auth_prot = -1;
4238 IWM_DPRINTF(sc, IWM_DEBUG_INTR,
4239 "%s: time event notification auth_prot=%d\n",
4240 __func__, sc->sc_auth_prot);
4242 wakeup(&sc->sc_auth_prot);
4245 case IWM_MCAST_FILTER_CMD:
4249 device_printf(sc->sc_dev,
4250 "frame %d/%d %x UNHANDLED (this should "
4251 "not happen)\n", qid, idx,
4257 * Why test bit 0x80? The Linux driver:
4259 * There is one exception: uCode sets bit 15 when it
4260 * originates the response/notification, i.e. when the
4261 * response/notification is not a direct response to a
4262 * command sent by the driver. For example, uCode issues
4263 * IWM_REPLY_RX when it sends a received frame to the driver;
4264 * it is not a direct response to any driver command.
4266 * Ok, so since when is 7 == 15? Well, the Linux driver
4267 * uses a slightly different format for pkt->hdr, and "qid"
4268 * is actually the upper byte of a two-byte field.
4270 if (!(pkt->hdr.qid & (1 << 7))) {
4271 iwm_cmd_done(sc, pkt);
4277 IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL,
4278 IWM_CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
4281 * Tell the firmware what we have processed.
4282 * Seems like the hardware gets upset unless we align
4285 hw = (hw == 0) ? IWM_RX_RING_COUNT - 1 : hw - 1;
4286 IWM_WRITE(sc, IWM_FH_RSCSR_CHNL0_WPTR, hw & ~7);
4292 struct iwm_softc *sc = arg;
4298 IWM_WRITE(sc, IWM_CSR_INT_MASK, 0);
4300 if (sc->sc_flags & IWM_FLAG_USE_ICT) {
4301 uint32_t *ict = sc->ict_dma.vaddr;
4304 tmp = htole32(ict[sc->ict_cur]);
4309 * ok, there was something. keep plowing until we have all.
4314 ict[sc->ict_cur] = 0;
4315 sc->ict_cur = (sc->ict_cur+1) % IWM_ICT_COUNT;
4316 tmp = htole32(ict[sc->ict_cur]);
4319 /* this is where the fun begins. don't ask */
4320 if (r1 == 0xffffffff)
4323 /* i am not expected to understand this */
4326 r1 = (0xff & r1) | ((0xff00 & r1) << 16);
4328 r1 = IWM_READ(sc, IWM_CSR_INT);
4329 /* "hardware gone" (where, fishing?) */
4330 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0)
4332 r2 = IWM_READ(sc, IWM_CSR_FH_INT_STATUS);
4334 if (r1 == 0 && r2 == 0) {
4338 IWM_WRITE(sc, IWM_CSR_INT, r1 | ~sc->sc_intmask);
4341 handled |= (r1 & (IWM_CSR_INT_BIT_ALIVE /*| IWM_CSR_INT_BIT_SCD*/));
4343 if (r1 & IWM_CSR_INT_BIT_SW_ERR) {
4346 struct ieee80211com *ic = &sc->sc_ic;
4347 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4351 /* Dump driver status (TX and RX rings) while we're here. */
4352 device_printf(sc->sc_dev, "driver status:\n");
4353 for (i = 0; i < IWM_MVM_MAX_QUEUES; i++) {
4354 struct iwm_tx_ring *ring = &sc->txq[i];
4355 device_printf(sc->sc_dev,
4356 " tx ring %2d: qid=%-2d cur=%-3d "
4358 i, ring->qid, ring->cur, ring->queued);
4360 device_printf(sc->sc_dev,
4361 " rx ring: cur=%d\n", sc->rxq.cur);
4362 device_printf(sc->sc_dev,
4363 " 802.11 state %d\n", vap->iv_state);
4366 device_printf(sc->sc_dev, "fatal firmware error\n");
4373 if (r1 & IWM_CSR_INT_BIT_HW_ERR) {
4374 handled |= IWM_CSR_INT_BIT_HW_ERR;
4375 device_printf(sc->sc_dev, "hardware error, stopping device\n");
4381 /* firmware chunk loaded */
4382 if (r1 & IWM_CSR_INT_BIT_FH_TX) {
4383 IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, IWM_CSR_FH_INT_TX_MASK);
4384 handled |= IWM_CSR_INT_BIT_FH_TX;
4385 sc->sc_fw_chunk_done = 1;
4389 if (r1 & IWM_CSR_INT_BIT_RF_KILL) {
4390 handled |= IWM_CSR_INT_BIT_RF_KILL;
4391 if (iwm_check_rfkill(sc)) {
4392 device_printf(sc->sc_dev,
4393 "%s: rfkill switch, disabling interface\n",
4400 * The Linux driver uses periodic interrupts to avoid races.
4401 * We cargo-cult like it's going out of fashion.
4403 if (r1 & IWM_CSR_INT_BIT_RX_PERIODIC) {
4404 handled |= IWM_CSR_INT_BIT_RX_PERIODIC;
4405 IWM_WRITE(sc, IWM_CSR_INT, IWM_CSR_INT_BIT_RX_PERIODIC);
4406 if ((r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX)) == 0)
4408 IWM_CSR_INT_PERIODIC_REG, IWM_CSR_INT_PERIODIC_DIS);
4412 if ((r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX)) || isperiodic) {
4413 handled |= (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX);
4414 IWM_WRITE(sc, IWM_CSR_FH_INT_STATUS, IWM_CSR_FH_INT_RX_MASK);
4418 /* enable periodic interrupt, see above */
4419 if (r1 & (IWM_CSR_INT_BIT_FH_RX | IWM_CSR_INT_BIT_SW_RX) && !isperiodic)
4420 IWM_WRITE_1(sc, IWM_CSR_INT_PERIODIC_REG,
4421 IWM_CSR_INT_PERIODIC_ENA);
4424 if (__predict_false(r1 & ~handled))
4425 IWM_DPRINTF(sc, IWM_DEBUG_INTR,
4426 "%s: unhandled interrupts: %x\n", __func__, r1);
4430 iwm_restore_interrupts(sc);
4437 * Autoconf glue-sniffing
4439 #define PCI_VENDOR_INTEL 0x8086
4440 #define PCI_PRODUCT_INTEL_WL_3160_1 0x08b3
4441 #define PCI_PRODUCT_INTEL_WL_3160_2 0x08b4
4442 #define PCI_PRODUCT_INTEL_WL_7260_1 0x08b1
4443 #define PCI_PRODUCT_INTEL_WL_7260_2 0x08b2
4444 #define PCI_PRODUCT_INTEL_WL_7265_1 0x095a
4445 #define PCI_PRODUCT_INTEL_WL_7265_2 0x095b
4447 static const struct iwm_devices {
4451 { PCI_PRODUCT_INTEL_WL_3160_1, "Intel Dual Band Wireless AC 3160" },
4452 { PCI_PRODUCT_INTEL_WL_3160_2, "Intel Dual Band Wireless AC 3160" },
4453 { PCI_PRODUCT_INTEL_WL_7260_1, "Intel Dual Band Wireless AC 7260" },
4454 { PCI_PRODUCT_INTEL_WL_7260_2, "Intel Dual Band Wireless AC 7260" },
4455 { PCI_PRODUCT_INTEL_WL_7265_1, "Intel Dual Band Wireless AC 7265" },
4456 { PCI_PRODUCT_INTEL_WL_7265_2, "Intel Dual Band Wireless AC 7265" },
4460 iwm_probe(device_t dev)
4464 for (i = 0; i < nitems(iwm_devices); i++)
4465 if (pci_get_vendor(dev) == PCI_VENDOR_INTEL &&
4466 pci_get_device(dev) == iwm_devices[i].device) {
4467 device_set_desc(dev, iwm_devices[i].name);
4468 return (BUS_PROBE_DEFAULT);
4475 iwm_dev_check(device_t dev)
4477 struct iwm_softc *sc;
4479 sc = device_get_softc(dev);
4481 switch (pci_get_device(dev)) {
4482 case PCI_PRODUCT_INTEL_WL_3160_1:
4483 case PCI_PRODUCT_INTEL_WL_3160_2:
4484 sc->sc_fwname = "iwm3160fw";
4485 sc->host_interrupt_operation_mode = 1;
4487 case PCI_PRODUCT_INTEL_WL_7260_1:
4488 case PCI_PRODUCT_INTEL_WL_7260_2:
4489 sc->sc_fwname = "iwm7260fw";
4490 sc->host_interrupt_operation_mode = 1;
4492 case PCI_PRODUCT_INTEL_WL_7265_1:
4493 case PCI_PRODUCT_INTEL_WL_7265_2:
4494 sc->sc_fwname = "iwm7265fw";
4495 sc->host_interrupt_operation_mode = 0;
4498 device_printf(dev, "unknown adapter type\n");
4504 iwm_pci_attach(device_t dev)
4506 struct iwm_softc *sc;
4507 int count, error, rid;
4510 sc = device_get_softc(dev);
4512 /* Clear device-specific "PCI retry timeout" register (41h). */
4513 reg = pci_read_config(dev, 0x40, sizeof(reg));
4514 pci_write_config(dev, 0x40, reg & ~0xff00, sizeof(reg));
4516 /* Enable bus-mastering and hardware bug workaround. */
4517 pci_enable_busmaster(dev);
4518 reg = pci_read_config(dev, PCIR_STATUS, sizeof(reg));
4520 if (reg & PCIM_STATUS_INTxSTATE) {
4521 reg &= ~PCIM_STATUS_INTxSTATE;
4523 pci_write_config(dev, PCIR_STATUS, reg, sizeof(reg));
4526 sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
4528 if (sc->sc_mem == NULL) {
4529 device_printf(sc->sc_dev, "can't map mem space\n");
4532 sc->sc_st = rman_get_bustag(sc->sc_mem);
4533 sc->sc_sh = rman_get_bushandle(sc->sc_mem);
4535 /* Install interrupt handler. */
4538 if (pci_alloc_msi(dev, &count) == 0)
4540 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
4541 (rid != 0 ? 0 : RF_SHAREABLE));
4542 if (sc->sc_irq == NULL) {
4543 device_printf(dev, "can't map interrupt\n");
4546 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_NET | INTR_MPSAFE,
4547 NULL, iwm_intr, sc, &sc->sc_ih);
4548 if (sc->sc_ih == NULL) {
4549 device_printf(dev, "can't establish interrupt");
4552 sc->sc_dmat = bus_get_dma_tag(sc->sc_dev);
4558 iwm_pci_detach(device_t dev)
4560 struct iwm_softc *sc = device_get_softc(dev);
4562 if (sc->sc_irq != NULL) {
4563 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
4564 bus_release_resource(dev, SYS_RES_IRQ,
4565 rman_get_rid(sc->sc_irq), sc->sc_irq);
4566 pci_release_msi(dev);
4568 if (sc->sc_mem != NULL)
4569 bus_release_resource(dev, SYS_RES_MEMORY,
4570 rman_get_rid(sc->sc_mem), sc->sc_mem);
4576 iwm_attach(device_t dev)
4578 struct iwm_softc *sc = device_get_softc(dev);
4579 struct ieee80211com *ic = &sc->sc_ic;
4585 mbufq_init(&sc->sc_snd, ifqmaxlen);
4586 callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0);
4587 TASK_INIT(&sc->sc_es_task, 0, iwm_endscan_cb, sc);
4588 sc->sc_tq = taskqueue_create("iwm_taskq", M_WAITOK,
4589 taskqueue_thread_enqueue, &sc->sc_tq);
4590 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "iwm_taskq");
4592 device_printf(dev, "can't start threads, error %d\n",
4598 error = iwm_pci_attach(dev);
4602 sc->sc_wantresp = -1;
4604 /* Check device type */
4605 error = iwm_dev_check(dev);
4609 sc->sc_fwdmasegsz = IWM_FWDMASEGSZ;
4612 * We now start fiddling with the hardware
4614 sc->sc_hw_rev = IWM_READ(sc, IWM_CSR_HW_REV);
4615 if (iwm_prepare_card_hw(sc) != 0) {
4616 device_printf(dev, "could not initialize hardware\n");
4620 /* Allocate DMA memory for firmware transfers. */
4621 if ((error = iwm_alloc_fwmem(sc)) != 0) {
4622 device_printf(dev, "could not allocate memory for firmware\n");
4626 /* Allocate "Keep Warm" page. */
4627 if ((error = iwm_alloc_kw(sc)) != 0) {
4628 device_printf(dev, "could not allocate keep warm page\n");
4632 /* We use ICT interrupts */
4633 if ((error = iwm_alloc_ict(sc)) != 0) {
4634 device_printf(dev, "could not allocate ICT table\n");
4638 /* Allocate TX scheduler "rings". */
4639 if ((error = iwm_alloc_sched(sc)) != 0) {
4640 device_printf(dev, "could not allocate TX scheduler rings\n");
4644 /* Allocate TX rings */
4645 for (txq_i = 0; txq_i < nitems(sc->txq); txq_i++) {
4646 if ((error = iwm_alloc_tx_ring(sc,
4647 &sc->txq[txq_i], txq_i)) != 0) {
4649 "could not allocate TX ring %d\n",
4655 /* Allocate RX ring. */
4656 if ((error = iwm_alloc_rx_ring(sc, &sc->rxq)) != 0) {
4657 device_printf(dev, "could not allocate RX ring\n");
4661 /* Clear pending interrupts. */
4662 IWM_WRITE(sc, IWM_CSR_INT, 0xffffffff);
4665 ic->ic_name = device_get_nameunit(sc->sc_dev);
4666 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
4667 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
4669 /* Set device capabilities. */
4672 IEEE80211_C_WPA | /* WPA/RSN */
4674 IEEE80211_C_SHSLOT | /* short slot time supported */
4675 IEEE80211_C_SHPREAMBLE /* short preamble supported */
4676 // IEEE80211_C_BGSCAN /* capable of bg scanning */
4678 for (i = 0; i < nitems(sc->sc_phyctxt); i++) {
4679 sc->sc_phyctxt[i].id = i;
4680 sc->sc_phyctxt[i].color = 0;
4681 sc->sc_phyctxt[i].ref = 0;
4682 sc->sc_phyctxt[i].channel = NULL;
4686 sc->sc_max_rssi = IWM_MAX_DBM - IWM_MIN_DBM;
4687 sc->sc_preinit_hook.ich_func = iwm_preinit;
4688 sc->sc_preinit_hook.ich_arg = sc;
4689 if (config_intrhook_establish(&sc->sc_preinit_hook) != 0) {
4690 device_printf(dev, "config_intrhook_establish failed\n");
4695 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
4696 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "debug",
4697 CTLFLAG_RW, &sc->sc_debug, 0, "control debugging");
4700 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_TRACE,
4701 "<-%s\n", __func__);
4705 /* Free allocated memory if something failed during attachment. */
4707 iwm_detach_local(sc, 0);
4713 iwm_update_edca(struct ieee80211com *ic)
4715 struct iwm_softc *sc = ic->ic_softc;
4717 device_printf(sc->sc_dev, "%s: called\n", __func__);
4722 iwm_preinit(void *arg)
4724 struct iwm_softc *sc = arg;
4725 device_t dev = sc->sc_dev;
4726 struct ieee80211com *ic = &sc->sc_ic;
4729 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_TRACE,
4730 "->%s\n", __func__);
4733 if ((error = iwm_start_hw(sc)) != 0) {
4734 device_printf(dev, "could not initialize hardware\n");
4739 error = iwm_run_init_mvm_ucode(sc, 1);
4740 iwm_stop_device(sc);
4746 "revision: 0x%x, firmware %d.%d (API ver. %d)\n",
4747 sc->sc_hw_rev & IWM_CSR_HW_REV_TYPE_MSK,
4748 IWM_UCODE_MAJOR(sc->sc_fwver),
4749 IWM_UCODE_MINOR(sc->sc_fwver),
4750 IWM_UCODE_API(sc->sc_fwver));
4752 /* not all hardware can do 5GHz band */
4753 if (!sc->sc_nvm.sku_cap_band_52GHz_enable)
4754 memset(&ic->ic_sup_rates[IEEE80211_MODE_11A], 0,
4755 sizeof(ic->ic_sup_rates[IEEE80211_MODE_11A]));
4759 * At this point we've committed - if we fail to do setup,
4760 * we now also have to tear down the net80211 state.
4762 ieee80211_ifattach(ic);
4763 ic->ic_vap_create = iwm_vap_create;
4764 ic->ic_vap_delete = iwm_vap_delete;
4765 ic->ic_raw_xmit = iwm_raw_xmit;
4766 ic->ic_node_alloc = iwm_node_alloc;
4767 ic->ic_scan_start = iwm_scan_start;
4768 ic->ic_scan_end = iwm_scan_end;
4769 ic->ic_update_mcast = iwm_update_mcast;
4770 ic->ic_set_channel = iwm_set_channel;
4771 ic->ic_scan_curchan = iwm_scan_curchan;
4772 ic->ic_scan_mindwell = iwm_scan_mindwell;
4773 ic->ic_wme.wme_update = iwm_update_edca;
4774 ic->ic_parent = iwm_parent;
4775 ic->ic_transmit = iwm_transmit;
4776 iwm_radiotap_attach(sc);
4778 ieee80211_announce(ic);
4780 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_TRACE,
4781 "<-%s\n", __func__);
4782 config_intrhook_disestablish(&sc->sc_preinit_hook);
4786 config_intrhook_disestablish(&sc->sc_preinit_hook);
4787 iwm_detach_local(sc, 0);
4791 * Attach the interface to 802.11 radiotap.
4794 iwm_radiotap_attach(struct iwm_softc *sc)
4796 struct ieee80211com *ic = &sc->sc_ic;
4798 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_TRACE,
4799 "->%s begin\n", __func__);
4800 ieee80211_radiotap_attach(ic,
4801 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
4802 IWM_TX_RADIOTAP_PRESENT,
4803 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
4804 IWM_RX_RADIOTAP_PRESENT);
4805 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_TRACE,
4806 "->%s end\n", __func__);
4809 static struct ieee80211vap *
4810 iwm_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
4811 enum ieee80211_opmode opmode, int flags,
4812 const uint8_t bssid[IEEE80211_ADDR_LEN],
4813 const uint8_t mac[IEEE80211_ADDR_LEN])
4815 struct iwm_vap *ivp;
4816 struct ieee80211vap *vap;
4818 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
4820 ivp = malloc(sizeof(struct iwm_vap), M_80211_VAP, M_WAITOK | M_ZERO);
4822 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
4823 vap->iv_bmissthreshold = 10; /* override default */
4824 /* Override with driver methods. */
4825 ivp->iv_newstate = vap->iv_newstate;
4826 vap->iv_newstate = iwm_newstate;
4828 ieee80211_ratectl_init(vap);
4829 /* Complete setup. */
4830 ieee80211_vap_attach(vap, iwm_media_change, ieee80211_media_status,
4832 ic->ic_opmode = opmode;
4838 iwm_vap_delete(struct ieee80211vap *vap)
4840 struct iwm_vap *ivp = IWM_VAP(vap);
4842 ieee80211_ratectl_deinit(vap);
4843 ieee80211_vap_detach(vap);
4844 free(ivp, M_80211_VAP);
4848 iwm_scan_start(struct ieee80211com *ic)
4850 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
4851 struct iwm_softc *sc = ic->ic_softc;
4854 if (sc->sc_scanband)
4857 error = iwm_mvm_scan_request(sc, IEEE80211_CHAN_2GHZ, 0, NULL, 0);
4859 device_printf(sc->sc_dev, "could not initiate scan\n");
4861 ieee80211_cancel_scan(vap);
4867 iwm_scan_end(struct ieee80211com *ic)
4872 iwm_update_mcast(struct ieee80211com *ic)
4877 iwm_set_channel(struct ieee80211com *ic)
4882 iwm_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
4887 iwm_scan_mindwell(struct ieee80211_scan_state *ss)
4893 iwm_init_task(void *arg1)
4895 struct iwm_softc *sc = arg1;
4898 while (sc->sc_flags & IWM_FLAG_BUSY)
4899 msleep(&sc->sc_flags, &sc->sc_mtx, 0, "iwmpwr", 0);
4900 sc->sc_flags |= IWM_FLAG_BUSY;
4902 if (sc->sc_ic.ic_nrunning > 0)
4904 sc->sc_flags &= ~IWM_FLAG_BUSY;
4905 wakeup(&sc->sc_flags);
4910 iwm_resume(device_t dev)
4914 /* Clear device-specific "PCI retry timeout" register (41h). */
4915 reg = pci_read_config(dev, 0x40, sizeof(reg));
4916 pci_write_config(dev, 0x40, reg & ~0xff00, sizeof(reg));
4917 iwm_init_task(device_get_softc(dev));
4923 iwm_suspend(device_t dev)
4925 struct iwm_softc *sc = device_get_softc(dev);
4927 if (sc->sc_ic.ic_nrunning > 0) {
4937 iwm_detach_local(struct iwm_softc *sc, int do_net80211)
4939 struct iwm_fw_info *fw = &sc->sc_fw;
4940 device_t dev = sc->sc_dev;
4944 taskqueue_drain_all(sc->sc_tq);
4945 taskqueue_free(sc->sc_tq);
4947 callout_drain(&sc->sc_watchdog_to);
4948 iwm_stop_device(sc);
4950 ieee80211_ifdetach(&sc->sc_ic);
4952 /* Free descriptor rings */
4953 for (i = 0; i < nitems(sc->txq); i++)
4954 iwm_free_tx_ring(sc, &sc->txq[i]);
4957 if (fw->fw_fp != NULL)
4958 iwm_fw_info_free(fw);
4960 /* Free scheduler */
4962 if (sc->ict_dma.vaddr != NULL)
4964 if (sc->kw_dma.vaddr != NULL)
4966 if (sc->fw_dma.vaddr != NULL)
4969 /* Finished with the hardware - detach things */
4970 iwm_pci_detach(dev);
4972 mbufq_drain(&sc->sc_snd);
4973 IWM_LOCK_DESTROY(sc);
4979 iwm_detach(device_t dev)
4981 struct iwm_softc *sc = device_get_softc(dev);
4983 return (iwm_detach_local(sc, 1));
4986 static device_method_t iwm_pci_methods[] = {
4987 /* Device interface */
4988 DEVMETHOD(device_probe, iwm_probe),
4989 DEVMETHOD(device_attach, iwm_attach),
4990 DEVMETHOD(device_detach, iwm_detach),
4991 DEVMETHOD(device_suspend, iwm_suspend),
4992 DEVMETHOD(device_resume, iwm_resume),
4997 static driver_t iwm_pci_driver = {
5000 sizeof (struct iwm_softc)
5003 static devclass_t iwm_devclass;
5005 DRIVER_MODULE(iwm, pci, iwm_pci_driver, iwm_devclass, NULL, NULL);
5006 MODULE_DEPEND(iwm, firmware, 1, 1, 1);
5007 MODULE_DEPEND(iwm, pci, 1, 1, 1);
5008 MODULE_DEPEND(iwm, wlan, 1, 1, 1);