if_iwmvar.h revision 330174
1/*	$OpenBSD: if_iwmvar.h,v 1.7 2015/03/02 13:51:10 jsg Exp $	*/
2/*	$FreeBSD: stable/11/sys/dev/iwm/if_iwmvar.h 330174 2018-03-01 05:52:27Z eadler $ */
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
107struct 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} __packed;
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
126struct 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} __packed;
133
134#define IWM_TX_RADIOTAP_PRESENT						\
135	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
136	 (1 << IEEE80211_RADIOTAP_RATE) |				\
137	 (1 << IEEE80211_RADIOTAP_CHANNEL))
138
139
140#define IWM_UCODE_SECTION_MAX 16
141#define IWM_FWDMASEGSZ (192*1024)
142#define IWM_FWDMASEGSZ_8000 (320*1024)
143/* sanity check value */
144#define IWM_FWMAXSIZE (2*1024*1024)
145
146/*
147 * fw_status is used to determine if we've already parsed the firmware file
148 *
149 * In addition to the following, status < 0 ==> -error
150 */
151#define IWM_FW_STATUS_NONE		0
152#define IWM_FW_STATUS_INPROGRESS	1
153#define IWM_FW_STATUS_DONE		2
154
155/**
156 * enum iwm_ucode_type
157 *
158 * The type of ucode.
159 *
160 * @IWM_UCODE_REGULAR: Normal runtime ucode
161 * @IWM_UCODE_INIT: Initial ucode
162 * @IWM_UCODE_WOWLAN: Wake on Wireless enabled ucode
163 * @IWM_UCODE_REGULAR_USNIFFER: Normal runtime ucode when using usniffer image
164 */
165enum iwm_ucode_type {
166	IWM_UCODE_REGULAR,
167	IWM_UCODE_INIT,
168	IWM_UCODE_WOWLAN,
169	IWM_UCODE_REGULAR_USNIFFER,
170	IWM_UCODE_TYPE_MAX
171};
172
173struct iwm_fw_info {
174	const struct firmware *fw_fp;
175	int fw_status;
176
177	struct iwm_fw_sects {
178		struct iwm_fw_onesect {
179			const void *fws_data;
180			uint32_t fws_len;
181			uint32_t fws_devoff;
182		} fw_sect[IWM_UCODE_SECTION_MAX];
183		int fw_count;
184		uint32_t paging_mem_size;
185	} fw_sects[IWM_UCODE_TYPE_MAX];
186
187	uint32_t phy_config;
188	uint8_t valid_tx_ant;
189	uint8_t valid_rx_ant;
190};
191
192struct iwm_nvm_data {
193	int n_hw_addrs;
194	uint8_t hw_addr[IEEE80211_ADDR_LEN];
195
196	int sku_cap_band_24GHz_enable;
197	int sku_cap_band_52GHz_enable;
198	int sku_cap_11n_enable;
199	int sku_cap_amt_enable;
200	int sku_cap_ipan_enable;
201
202	uint8_t radio_cfg_type;
203	uint8_t radio_cfg_step;
204	uint8_t radio_cfg_dash;
205	uint8_t radio_cfg_pnum;
206	uint8_t valid_tx_ant, valid_rx_ant;
207#define IWM_NUM_CHANNELS	39
208#define IWM_NUM_CHANNELS_8000	51
209
210	uint16_t nvm_version;
211	uint8_t max_tx_pwr_half_dbm;
212
213	uint16_t nvm_ch_flags[];
214};
215
216/* max bufs per tfd the driver will use */
217#define IWM_MAX_CMD_TBS_PER_TFD 2
218
219struct iwm_rx_packet;
220struct iwm_host_cmd {
221	const void *data[IWM_MAX_CMD_TBS_PER_TFD];
222	struct iwm_rx_packet *resp_pkt;
223	unsigned long _rx_page_addr;
224	uint32_t _rx_page_order;
225	int handler_status;
226
227	uint32_t flags;
228	uint32_t id;
229	uint16_t len[IWM_MAX_CMD_TBS_PER_TFD];
230	uint8_t dataflags[IWM_MAX_CMD_TBS_PER_TFD];
231};
232
233/*
234 * DMA glue is from iwn
235 */
236
237typedef caddr_t iwm_caddr_t;
238typedef void *iwm_hookarg_t;
239
240struct iwm_dma_info {
241	bus_dma_tag_t		tag;
242	bus_dmamap_t		map;
243	bus_dma_segment_t	seg;
244	bus_addr_t		paddr;
245	void 			*vaddr;
246	bus_size_t		size;
247};
248
249#define IWM_TX_RING_COUNT	256
250#define IWM_TX_RING_LOMARK	192
251#define IWM_TX_RING_HIMARK	224
252
253struct iwm_tx_data {
254	bus_dmamap_t		map;
255	bus_addr_t		cmd_paddr;
256	bus_addr_t		scratch_paddr;
257	struct mbuf		*m;
258	struct iwm_node 	*in;
259	int			done;
260};
261
262struct iwm_tx_ring {
263	struct iwm_dma_info	desc_dma;
264	struct iwm_dma_info	cmd_dma;
265	struct iwm_tfd		*desc;
266	struct iwm_device_cmd	*cmd;
267	bus_dma_tag_t		data_dmat;
268	struct iwm_tx_data	data[IWM_TX_RING_COUNT];
269	int			qid;
270	int			queued;
271	int			cur;
272};
273
274#define IWM_RX_RING_COUNT	256
275#define IWM_RBUF_COUNT		(IWM_RX_RING_COUNT + 32)
276/* Linux driver optionally uses 8k buffer */
277#define IWM_RBUF_SIZE		4096
278
279#define	IWM_MAX_SCATTER		20
280
281struct iwm_rx_data {
282	struct mbuf	*m;
283	bus_dmamap_t	map;
284};
285
286struct iwm_rx_ring {
287	struct iwm_dma_info	desc_dma;
288	struct iwm_dma_info	stat_dma;
289	struct iwm_dma_info	buf_dma;
290	uint32_t		*desc;
291	struct iwm_rb_status	*stat;
292	struct iwm_rx_data	data[IWM_RX_RING_COUNT];
293	bus_dmamap_t		spare_map;	/* for iwm_rx_addbuf() */
294	bus_dma_tag_t           data_dmat;
295	int			cur;
296};
297
298struct iwm_ucode_status {
299	uint32_t uc_error_event_table;
300	uint32_t uc_umac_error_event_table;
301	uint32_t uc_log_event_table;
302
303	int uc_ok;
304	int uc_intr;
305};
306
307#define IWM_CMD_RESP_MAX PAGE_SIZE
308
309#define IWM_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS 500
310#define IWM_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS 400
311
312/*
313 * Command headers are in iwl-trans.h, which is full of all
314 * kinds of other junk, so we just replicate the structures here.
315 * First the software bits:
316 */
317enum IWM_CMD_MODE {
318	IWM_CMD_SYNC		= 0,
319	IWM_CMD_ASYNC		= (1 << 0),
320	IWM_CMD_WANT_SKB	= (1 << 1),
321	IWM_CMD_SEND_IN_RFKILL	= (1 << 2),
322};
323enum iwm_hcmd_dataflag {
324	IWM_HCMD_DFL_NOCOPY     = (1 << 0),
325	IWM_HCMD_DFL_DUP        = (1 << 1),
326};
327
328struct iwm_int_sta {
329	uint32_t sta_id;
330	uint32_t tfd_queue_msk;
331};
332
333struct iwm_mvm_phy_ctxt {
334	uint16_t id;
335	uint16_t color;
336	uint32_t ref;
337	struct ieee80211_channel *channel;
338};
339
340struct iwm_bf_data {
341	int bf_enabled;		/* filtering	*/
342	int ba_enabled;		/* abort	*/
343	int ave_beacon_signal;
344	int last_cqm_event;
345};
346
347struct iwm_vap {
348	struct ieee80211vap	iv_vap;
349	int			is_uploaded;
350
351	int			(*iv_newstate)(struct ieee80211vap *,
352				    enum ieee80211_state, int);
353};
354#define IWM_VAP(_vap)		((struct iwm_vap *)(_vap))
355
356struct iwm_node {
357	struct ieee80211_node	in_ni;
358	struct iwm_mvm_phy_ctxt	*in_phyctxt;
359
360	/* status "bits" */
361	int			in_assoc;
362
363	struct iwm_lq_cmd	in_lq;
364
365	uint8_t			in_ridx[IEEE80211_RATE_MAXSIZE];
366};
367#define IWM_NODE(_ni)		((struct iwm_node *)(_ni))
368
369#define IWM_STATION_ID 0
370#define IWM_AUX_STA_ID 1
371
372#define	IWM_DEFAULT_MACID	0
373#define	IWM_DEFAULT_COLOR	0
374#define	IWM_DEFAULT_TSFID	0
375
376#define IWM_ICT_SIZE		4096
377#define IWM_ICT_COUNT		(IWM_ICT_SIZE / sizeof (uint32_t))
378#define IWM_ICT_PADDR_SHIFT	12
379
380enum iwm_device_family {
381	IWM_DEVICE_FAMILY_UNDEFINED,
382	IWM_DEVICE_FAMILY_7000,
383	IWM_DEVICE_FAMILY_8000,
384};
385
386/**
387 * struct iwm_cfg
388 * @fw_name: Firmware filename.
389 * @host_interrupt_operation_mode: device needs host interrupt operation
390 *      mode set
391 * @nvm_hw_section_num: the ID of the HW NVM section
392 */
393struct iwm_cfg {
394	const char *fw_name;
395	uint16_t eeprom_size;
396	enum iwm_device_family device_family;
397	int host_interrupt_operation_mode;
398	uint8_t nvm_hw_section_num;
399};
400
401struct iwm_softc {
402	device_t		sc_dev;
403	uint32_t		sc_debug;
404	int			sc_attached;
405
406	struct mtx		sc_mtx;
407	struct mbufq		sc_snd;
408	struct ieee80211com	sc_ic;
409
410	int			sc_flags;
411#define IWM_FLAG_USE_ICT	(1 << 0)
412#define IWM_FLAG_HW_INITED	(1 << 1)
413#define IWM_FLAG_STOPPED	(1 << 2)
414#define IWM_FLAG_RFKILL		(1 << 3)
415#define IWM_FLAG_BUSY		(1 << 4)
416#define IWM_FLAG_SCANNING	(1 << 5)
417#define IWM_FLAG_SCAN_RUNNING	(1 << 6)
418
419	struct intr_config_hook sc_preinit_hook;
420	struct callout		sc_watchdog_to;
421	struct callout		sc_led_blink_to;
422
423	struct task		init_task;
424
425	struct resource		*sc_irq;
426	struct resource		*sc_mem;
427	bus_space_tag_t		sc_st;
428	bus_space_handle_t	sc_sh;
429	bus_size_t		sc_sz;
430	bus_dma_tag_t		sc_dmat;
431	void			*sc_ih;
432
433	/* TX scheduler rings. */
434	struct iwm_dma_info	sched_dma;
435	uint32_t		sched_base;
436
437	/* TX/RX rings. */
438	struct iwm_tx_ring	txq[IWM_MVM_MAX_QUEUES];
439	struct iwm_rx_ring	rxq;
440	int			qfullmsk;
441
442	int			sc_sf_state;
443
444	/* ICT table. */
445	struct iwm_dma_info	ict_dma;
446	int			ict_cur;
447
448	int			sc_hw_rev;
449	int			sc_hw_id;
450
451	struct iwm_dma_info	kw_dma;
452	struct iwm_dma_info	fw_dma;
453
454	int			sc_fw_chunk_done;
455
456	struct iwm_ucode_status	sc_uc;
457	enum iwm_ucode_type	sc_uc_current;
458	char			sc_fwver[32];
459
460	int			sc_capaflags;
461	int			sc_capa_max_probe_len;
462	int sc_capa_n_scan_channels;
463	uint32_t sc_ucode_api;
464	uint8_t sc_enabled_capa[howmany(IWM_NUM_UCODE_TLV_CAPA, NBBY)];
465	char sc_fw_mcc[3];
466
467	int			sc_intmask;
468
469	/*
470	 * So why do we need a separate stopped flag and a generation?
471	 * the former protects the device from issuing commands when it's
472	 * stopped (duh).  The latter protects against race from a very
473	 * fast stop/unstop cycle where threads waiting for responses do
474	 * not have a chance to run in between.  Notably: we want to stop
475	 * the device from interrupt context when it craps out, so we
476	 * don't have the luxury of waiting for quiescense.
477	 */
478	int			sc_generation;
479
480	bus_size_t		sc_fwdmasegsz;
481	struct iwm_fw_info	sc_fw;
482	struct iwm_tlv_calib_ctrl sc_default_calib[IWM_UCODE_TYPE_MAX];
483
484	const struct iwm_cfg	*cfg;
485	struct iwm_nvm_data	*nvm_data;
486	struct iwm_phy_db	*sc_phy_db;
487
488	struct iwm_bf_data	sc_bf;
489
490	int			sc_tx_timer;
491
492	int			sc_scan_last_antenna;
493
494	int			sc_fixed_ridx;
495
496	int			sc_staid;
497	int			sc_nodecolor;
498
499	uint8_t			sc_cmd_resp[IWM_CMD_RESP_MAX];
500	int			sc_wantresp;
501
502	struct task		sc_es_task;
503
504	struct iwm_rx_phy_info	sc_last_phy_info;
505	int			sc_ampdu_ref;
506
507	struct iwm_int_sta	sc_aux_sta;
508
509	/* phy contexts.  we only use the first one */
510	struct iwm_mvm_phy_ctxt	sc_phyctxt[IWM_NUM_PHY_CTX];
511
512	struct iwm_notif_statistics sc_stats;
513	int			sc_noise;
514
515	caddr_t			sc_drvbpf;
516
517	struct iwm_rx_radiotap_header sc_rxtap;
518	struct iwm_tx_radiotap_header sc_txtap;
519
520	int			sc_max_rssi;
521
522	struct iwm_notif_wait_data *sc_notif_wait;
523};
524
525#define IWM_LOCK_INIT(_sc) \
526	mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
527	    MTX_NETWORK_LOCK, MTX_DEF);
528#define	IWM_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
529#define	IWM_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
530#define IWM_LOCK_DESTROY(_sc)	mtx_destroy(&(_sc)->sc_mtx)
531