1 /*        $NetBSD: if_iwmvar.h,v 1.20 2020/05/22 20:27:16 thorpej Exp $         */
2 /*        OpenBSD: if_iwmvar.h,v 1.24 2016/09/21 13:53:18 stsp Exp    */
3 
4 /*
5  * Copyright (c) 2014 genua mbh <info@genua.de>
6  * Copyright (c) 2014 Fixup Software Ltd.
7  *
8  * Permission to use, copy, modify, and distribute this software for any
9  * purpose with or without fee is hereby granted, provided that the above
10  * copyright notice and this permission notice appear in all copies.
11  *
12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19  */
20 
21 /*-
22  * Based on BSD-licensed source modules in the Linux iwlwifi driver,
23  * which were used as the reference documentation for this implementation.
24  *
25  * Driver version we are currently based off of is
26  * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
27  *
28  ***********************************************************************
29  *
30  * This file is provided under a dual BSD/GPLv2 license.  When using or
31  * redistributing this file, you may do so under either license.
32  *
33  * GPL LICENSE SUMMARY
34  *
35  * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
36  *
37  * This program is free software; you can redistribute it and/or modify
38  * it under the terms of version 2 of the GNU General Public License as
39  * published by the Free Software Foundation.
40  *
41  * This program is distributed in the hope that it will be useful, but
42  * WITHOUT ANY WARRANTY; without even the implied warranty of
43  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
44  * General Public License for more details.
45  *
46  * You should have received a copy of the GNU General Public License
47  * along with this program; if not, write to the Free Software
48  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
49  * USA
50  *
51  * The full GNU General Public License is included in this distribution
52  * in the file called COPYING.
53  *
54  * Contact Information:
55  *  Intel Linux Wireless <ilw@linux.intel.com>
56  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
57  *
58  *
59  * BSD LICENSE
60  *
61  * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
62  * All rights reserved.
63  *
64  * Redistribution and use in source and binary forms, with or without
65  * modification, are permitted provided that the following conditions
66  * are met:
67  *
68  *  * Redistributions of source code must retain the above copyright
69  *    notice, this list of conditions and the following disclaimer.
70  *  * Redistributions in binary form must reproduce the above copyright
71  *    notice, this list of conditions and the following disclaimer in
72  *    the documentation and/or other materials provided with the
73  *    distribution.
74  *  * Neither the name Intel Corporation nor the names of its
75  *    contributors may be used to endorse or promote products derived
76  *    from this software without specific prior written permission.
77  *
78  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
79  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
80  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
81  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
82  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
83  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
84  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
85  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
86  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
87  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
88  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
89  */
90 
91 /*-
92  * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
93  *
94  * Permission to use, copy, modify, and distribute this software for any
95  * purpose with or without fee is hereby granted, provided that the above
96  * copyright notice and this permission notice appear in all copies.
97  *
98  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
99  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
100  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
101  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
102  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
103  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
104  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
105  */
106 
107 struct iwm_rx_radiotap_header {
108           struct ieee80211_radiotap_header wr_ihdr;
109           uint64_t  wr_tsft;
110           uint8_t             wr_flags;
111           uint8_t             wr_rate;
112           uint16_t  wr_chan_freq;
113           uint16_t  wr_chan_flags;
114           int8_t              wr_dbm_antsignal;
115           int8_t              wr_dbm_antnoise;
116 };
117 
118 #define IWM_RX_RADIOTAP_PRESENT                                                           \
119           ((1 << IEEE80211_RADIOTAP_TSFT) |                                     \
120            (1 << IEEE80211_RADIOTAP_FLAGS) |                                    \
121            (1 << IEEE80211_RADIOTAP_RATE) |                                     \
122            (1 << IEEE80211_RADIOTAP_CHANNEL) |                                  \
123            (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |                            \
124            (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
125 
126 struct iwm_tx_radiotap_header {
127           struct ieee80211_radiotap_header wt_ihdr;
128           uint8_t             wt_flags;
129           uint8_t             wt_rate;
130           uint16_t  wt_chan_freq;
131           uint16_t  wt_chan_flags;
132           uint8_t             wt_hwqueue;
133 };
134 
135 #define IWM_TX_RADIOTAP_PRESENT                                                           \
136           ((1 << IEEE80211_RADIOTAP_FLAGS) |                                    \
137            (1 << IEEE80211_RADIOTAP_RATE) |                                     \
138            (1 << IEEE80211_RADIOTAP_CHANNEL))
139 
140 #define IWM_UCODE_SECT_MAX 16
141 #define IWM_FWDMASEGSZ (192*1024)
142 #define IWM_FWDMASEGSZ_8000 (320*1024)
143 
144 /*
145  * fw_status is used to determine if we've already parsed the firmware file
146  *
147  * In addition to the following, status < 0 ==> -error
148  */
149 #define IWM_FW_STATUS_NONE              0
150 #define IWM_FW_STATUS_INPROGRESS        1
151 #define IWM_FW_STATUS_DONE              2
152 
153 enum iwm_ucode_type {
154           IWM_UCODE_TYPE_REGULAR,
155           IWM_UCODE_TYPE_INIT,
156           IWM_UCODE_TYPE_WOW,
157           IWM_UCODE_TYPE_REGULAR_USNIFFER,
158           IWM_UCODE_TYPE_MAX
159 };
160 
161 struct iwm_fw_info {
162           void *fw_rawdata;
163           size_t fw_rawsize;
164           int fw_status;
165 
166           struct iwm_fw_sects {
167                     struct iwm_fw_onesect {
168                               void *fws_data;
169                               uint32_t fws_len;
170                               uint32_t fws_devoff;
171 
172                               void *fws_alloc;
173                               size_t fws_allocsize;
174                     } fw_sect[IWM_UCODE_SECT_MAX];
175                     size_t fw_totlen;
176                     int fw_count;
177                     int is_dual_cpus;
178                     uint32_t paging_mem_size;
179           } fw_sects[IWM_UCODE_TYPE_MAX];
180 };
181 
182 struct iwm_nvm_data {
183           int n_hw_addrs;
184           uint8_t hw_addr[ETHER_ADDR_LEN];
185 
186           uint8_t calib_version;
187           uint16_t calib_voltage;
188 
189           uint16_t raw_temperature;
190           uint16_t kelvin_temperature;
191           uint16_t kelvin_voltage;
192           uint16_t xtal_calib[2];
193 
194           int sku_cap_band_24GHz_enable;
195           int sku_cap_band_52GHz_enable;
196           int sku_cap_11n_enable;
197           int sku_cap_amt_enable;
198           int sku_cap_ipan_enable;
199           int sku_cap_mimo_disable;
200 
201           uint8_t radio_cfg_type;
202           uint8_t radio_cfg_step;
203           uint8_t radio_cfg_dash;
204           uint8_t radio_cfg_pnum;
205           uint8_t valid_tx_ant, valid_rx_ant;
206 
207           uint16_t nvm_version;
208           uint8_t max_tx_pwr_half_dbm;
209 
210           bool lar_enabled;
211 };
212 
213 /* max bufs per tfd the driver will use */
214 #define IWM_MAX_CMD_TBS_PER_TFD 2
215 
216 struct iwm_rx_packet;
217 struct iwm_host_cmd {
218           const void *data[IWM_MAX_CMD_TBS_PER_TFD];
219           struct iwm_rx_packet *resp_pkt;
220           unsigned long _rx_page_addr;
221           uint32_t _rx_page_order;
222           int handler_status;
223 
224           uint32_t flags;
225           uint16_t len[IWM_MAX_CMD_TBS_PER_TFD];
226           uint8_t dataflags[IWM_MAX_CMD_TBS_PER_TFD];
227           uint32_t id;
228 };
229 
230 /*
231  * DMA glue is from iwn
232  */
233 
234 struct iwm_dma_info {
235           bus_dma_tag_t                 tag;
236           bus_dmamap_t                  map;
237           bus_dma_segment_t   seg;
238           bus_addr_t                    paddr;
239           void                          *vaddr;
240           bus_size_t                    size;
241 };
242 
243 /**
244  * struct iwm_fw_paging
245  * @fw_paging_block: dma memory info
246  * @fw_paging_size: page size
247  */
248 struct iwm_fw_paging {
249           struct iwm_dma_info fw_paging_block;
250           uint32_t fw_paging_size;
251 };
252 
253 #define IWM_TX_RING_COUNT     256
254 #define IWM_TX_RING_LOMARK    192
255 #define IWM_TX_RING_HIMARK    224
256 
257 struct iwm_tx_data {
258           bus_dmamap_t        map;
259           bus_addr_t          cmd_paddr;
260           bus_addr_t          scratch_paddr;
261           struct mbuf         *m;
262           struct iwm_node *in;
263           int done;
264 };
265 
266 struct iwm_tx_ring {
267           struct iwm_dma_info desc_dma;
268           struct iwm_dma_info cmd_dma;
269           struct iwm_tfd                *desc;
270           struct iwm_device_cmd         *cmd;
271           struct iwm_tx_data  data[IWM_TX_RING_COUNT];
272           int                           qid;
273           int                           queued;
274           int                           cur;
275 };
276 
277 #define IWM_RX_RING_COUNT     256
278 #define IWM_RBUF_COUNT                  (IWM_RX_RING_COUNT + 32)
279 /* Linux driver optionally uses 8k buffer */
280 #define IWM_RBUF_SIZE                   4096
281 
282 struct iwm_rx_data {
283           struct mbuf         *m;
284           bus_dmamap_t        map;
285 };
286 
287 struct iwm_rx_ring {
288           struct iwm_dma_info desc_dma;
289           struct iwm_dma_info stat_dma;
290           struct iwm_dma_info buf_dma;
291           uint32_t            *desc;
292           struct iwm_rb_status          *stat;
293           struct iwm_rx_data  data[IWM_RX_RING_COUNT];
294           int                           cur;
295 };
296 
297 #define IWM_FLAG_USE_ICT      __BIT(0)
298 #define IWM_FLAG_HW_INITED    __BIT(1)
299 #define IWM_FLAG_STOPPED      __BIT(2)
300 #define IWM_FLAG_RFKILL                 __BIT(3)
301 #define IWM_FLAG_SCANNING     __BIT(4)
302 #define IWM_FLAG_ATTACHED     __BIT(5)
303 #define IWM_FLAG_FW_LOADED    __BIT(6)
304 
305 struct iwm_ucode_status {
306           uint32_t uc_error_event_table;
307           uint32_t uc_umac_error_event_table;
308           uint32_t uc_log_event_table;
309 
310           int uc_ok;
311           int uc_intr;
312 };
313 
314 /* sc_wantresp */
315 #define IWM_CMD_RESP_IDLE     -1
316 
317 #define IWM_CMD_RESP_MAX PAGE_SIZE
318 
319 /* lower blocks contain EEPROM image and calibration data */
320 #define IWM_OTP_LOW_IMAGE_SIZE_FAMILY_7000        16384
321 #define IWM_OTP_LOW_IMAGE_SIZE_FAMILY_8000        32768
322 
323 #define IWM_TE_SESSION_PROTECTION_MAX_TIME_MS 1000
324 #define IWM_TE_SESSION_PROTECTION_MIN_TIME_MS 400
325 
326 enum IWM_CMD_MODE {
327           IWM_CMD_ASYNC                 = (1 << 0),
328           IWM_CMD_WANT_SKB    = (1 << 1),
329           IWM_CMD_SEND_IN_RFKILL        = (1 << 2),
330 };
331 enum iwm_hcmd_dataflag {
332           IWM_HCMD_DFL_NOCOPY     = (1 << 0),
333           IWM_HCMD_DFL_DUP        = (1 << 1),
334 };
335 
336 #define IWM_NUM_PAPD_CH_GROUPS          9
337 #define IWM_NUM_TXP_CH_GROUPS 9
338 
339 struct iwm_phy_db_entry {
340           uint16_t size;
341           uint8_t *data;
342 };
343 
344 struct iwm_phy_db {
345           struct iwm_phy_db_entry       cfg;
346           struct iwm_phy_db_entry       calib_nch;
347           struct iwm_phy_db_entry       calib_ch_group_papd[IWM_NUM_PAPD_CH_GROUPS];
348           struct iwm_phy_db_entry       calib_ch_group_txp[IWM_NUM_TXP_CH_GROUPS];
349 };
350 
351 struct iwm_phy_ctxt {
352           uint16_t id;
353           uint16_t color;
354           uint32_t ref;
355           struct ieee80211_channel *channel;
356 };
357 
358 struct iwm_bf_data {
359           int bf_enabled;               /* filtering        */
360           int ba_enabled;               /* abort  */
361           int ave_beacon_signal;
362           int last_cqm_event;
363 };
364 
365 struct iwm_softc {
366           device_t sc_dev;
367           struct ethercom sc_ec;
368           struct ieee80211com sc_ic;
369 
370           int (*sc_newstate)(struct ieee80211com *, enum ieee80211_state, int);
371 
372           struct ieee80211_amrr sc_amrr;
373           struct callout sc_calib_to;
374           struct callout sc_led_blink_to;
375 
376           bus_space_tag_t sc_st;
377           bus_space_handle_t sc_sh;
378           pci_intr_handle_t *sc_pihp;
379 
380           bus_size_t sc_sz;
381           bus_dma_tag_t sc_dmat;
382           pci_chipset_tag_t sc_pct;
383           pcitag_t sc_pcitag;
384           pcireg_t sc_pciid;
385           const void *sc_ih;
386           void *sc_soft_ih;
387 
388           /* TX scheduler rings. */
389           struct iwm_dma_info           sched_dma;
390           uint32_t                      sched_base;
391 
392           /* TX/RX rings. */
393           struct iwm_tx_ring txq[IWM_MAX_QUEUES];
394           struct iwm_rx_ring rxq;
395           int qfullmsk;
396 
397           int sc_sf_state;
398 
399           /* ICT table. */
400           struct iwm_dma_info ict_dma;
401           int                           ict_cur;
402 
403           int sc_hw_rev;
404 #define IWM_SILICON_A_STEP    0
405 #define IWM_SILICON_B_STEP    1
406 #define IWM_SILICON_C_STEP    2
407 #define IWM_SILICON_D_STEP    3
408           int sc_hw_id;
409           int sc_device_family;
410 #define IWM_DEVICE_FAMILY_7000          1
411 #define IWM_DEVICE_FAMILY_8000          2
412 
413           struct iwm_dma_info kw_dma;
414           struct iwm_dma_info fw_dma;
415 
416           int sc_fw_chunk_done;
417           int sc_init_complete;
418 
419           struct iwm_ucode_status sc_uc;
420           enum iwm_ucode_type sc_uc_current;
421           char sc_fwver[32];
422 
423           int sc_capaflags;
424           int sc_capa_max_probe_len;
425           int sc_capa_n_scan_channels;
426           uint8_t sc_ucode_api[howmany(IWM_NUM_UCODE_TLV_API, NBBY)];
427           uint8_t sc_enabled_capa[howmany(IWM_NUM_UCODE_TLV_CAPA, NBBY)];
428           char sc_fw_mcc[3];
429 
430           int sc_intmask;
431           int sc_flags;
432 
433           /*
434            * So why do we need a separate stopped flag and a generation?
435            * the former protects the device from issueing commands when it's
436            * stopped (duh).  The latter protects against race from a very
437            * fast stop/unstop cycle where threads waiting for responses do
438            * not have a chance to run in between.  Notably: we want to stop
439            * the device from interrupt context when it craps out, so we
440            * don't have the luxury of waiting for quiescense.
441            */
442           int sc_generation;
443 
444           int sc_cap_off; /* PCIe caps */
445 
446           const char *sc_fwname;
447           bus_size_t sc_fwdmasegsz;
448           struct iwm_fw_info sc_fw;
449           int sc_fw_phy_config;
450           struct iwm_tlv_calib_ctrl sc_default_calib[IWM_UCODE_TYPE_MAX];
451 
452           struct iwm_nvm_data sc_nvm;
453           struct iwm_phy_db sc_phy_db;
454 
455           struct iwm_bf_data sc_bf;
456 
457           int sc_tx_timer;
458           int sc_rx_ba_sessions;
459 
460           int sc_scan_last_antenna;
461           int sc_mgmt_last_antenna;
462 
463           int sc_fixed_ridx;
464 
465           int sc_staid;
466           int sc_nodecolor;
467 
468           uint8_t sc_cmd_resp[IWM_CMD_RESP_MAX];
469           int sc_wantresp;
470 
471           struct workqueue *sc_nswq;
472 
473           struct iwm_rx_phy_info sc_last_phy_info;
474           int sc_ampdu_ref;
475 
476           /* phy contexts.  we only use the first one */
477           struct iwm_phy_ctxt sc_phyctxt[IWM_NUM_PHY_CTX];
478 
479           struct iwm_notif_statistics sc_stats;
480           int sc_noise;
481 
482           int sc_cmd_hold_nic_awake;
483 
484           /* device needs host interrupt operation mode set */
485           int host_interrupt_operation_mode;
486           /* should the MAC access REQ be asserted when a command is in flight.
487            * This is due to a HW bug in 7260, 3160 and 7265. */
488           int apmg_wake_up_wa;
489 
490           /*
491            * Paging parameters - All of the parameters should be set by the
492            * opmode when paging is enabled
493            */
494           struct iwm_fw_paging fw_paging_db[IWM_NUM_OF_FW_PAGING_BLOCKS];
495           uint16_t num_of_paging_blk;
496           uint16_t num_of_pages_in_last_blk;
497 
498           struct sysctllog *sc_clog;
499 
500           struct bpf_if *sc_drvbpf;
501 
502           kmutex_t  sc_media_mtx;       /* XXX */
503 
504           union {
505                     struct iwm_rx_radiotap_header th;
506                     uint8_t   pad[IEEE80211_RADIOTAP_HDRLEN];
507           } sc_rxtapu;
508 #define sc_rxtap    sc_rxtapu.th
509           int                           sc_rxtap_len;
510 
511           union {
512                     struct iwm_tx_radiotap_header th;
513                     uint8_t   pad[IEEE80211_RADIOTAP_HDRLEN];
514           } sc_txtapu;
515 #define sc_txtap    sc_txtapu.th
516           int                           sc_txtap_len;
517 };
518 
519 struct iwm_node {
520           struct ieee80211_node in_ni;
521           struct iwm_phy_ctxt *in_phyctxt;
522 
523           uint16_t in_id;
524           uint16_t in_color;
525 
526           struct iwm_lq_cmd in_lq;
527           struct ieee80211_amrr_node in_amn;
528 };
529 #define IWM_STATION_ID 0
530 #define IWM_AUX_STA_ID 1
531 
532 #define IWM_ICT_SIZE                    4096
533 #define IWM_ICT_COUNT                   (IWM_ICT_SIZE / sizeof (uint32_t))
534 #define IWM_ICT_PADDR_SHIFT   12
535