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1 /*
2  * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr>
3  * Copyright (c) 2006 Sam Leffler, Errno Consulting
4  * Copyright (c) 2007 Christoph Hellwig <hch@lst.de>
5  * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org>
6  * Copyright (c) 2012 Pontus Fuchs <pontus.fuchs@gmail.com>
7  *
8  * Permission to use, copy, modify, and/or 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 /* all fields are big endian */
22 struct ar5523_fwblock {
23 	__be32		flags;
24 #define AR5523_WRITE_BLOCK	(1 << 4)
25 
26 	__be32	len;
27 #define AR5523_MAX_FWBLOCK_SIZE	2048
28 
29 	__be32		total;
30 	__be32		remain;
31 	__be32		rxtotal;
32 	__be32		pad[123];
33 } __packed;
34 
35 #define AR5523_MAX_RXCMDSZ	1024
36 #define AR5523_MAX_TXCMDSZ	1024
37 
38 struct ar5523_cmd_hdr {
39 	__be32		len;
40 	__be32		code;
41 /* NB: these are defined for rev 1.5 firmware; rev 1.6 is different */
42 /* messages from Host -> Target */
43 #define	WDCMSG_HOST_AVAILABLE		0x01
44 #define WDCMSG_BIND			0x02
45 #define WDCMSG_TARGET_RESET		0x03
46 #define WDCMSG_TARGET_GET_CAPABILITY	0x04
47 #define WDCMSG_TARGET_SET_CONFIG	0x05
48 #define WDCMSG_TARGET_GET_STATUS	0x06
49 #define WDCMSG_TARGET_GET_STATS		0x07
50 #define WDCMSG_TARGET_START		0x08
51 #define WDCMSG_TARGET_STOP		0x09
52 #define WDCMSG_TARGET_ENABLE		0x0a
53 #define WDCMSG_TARGET_DISABLE		0x0b
54 #define	WDCMSG_CREATE_CONNECTION	0x0c
55 #define WDCMSG_UPDATE_CONNECT_ATTR	0x0d
56 #define	WDCMSG_DELETE_CONNECT		0x0e
57 #define	WDCMSG_SEND			0x0f
58 #define WDCMSG_FLUSH			0x10
59 /* messages from Target -> Host */
60 #define	WDCMSG_STATS_UPDATE		0x11
61 #define	WDCMSG_BMISS			0x12
62 #define	WDCMSG_DEVICE_AVAIL		0x13
63 #define	WDCMSG_SEND_COMPLETE		0x14
64 #define	WDCMSG_DATA_AVAIL		0x15
65 #define	WDCMSG_SET_PWR_MODE		0x16
66 #define	WDCMSG_BMISS_ACK		0x17
67 #define	WDCMSG_SET_LED_STEADY		0x18
68 #define	WDCMSG_SET_LED_BLINK		0x19
69 /* more messages */
70 #define	WDCMSG_SETUP_BEACON_DESC	0x1a
71 #define	WDCMSG_BEACON_INIT		0x1b
72 #define	WDCMSG_RESET_KEY_CACHE		0x1c
73 #define	WDCMSG_RESET_KEY_CACHE_ENTRY	0x1d
74 #define	WDCMSG_SET_KEY_CACHE_ENTRY	0x1e
75 #define	WDCMSG_SET_DECOMP_MASK		0x1f
76 #define	WDCMSG_SET_REGULATORY_DOMAIN	0x20
77 #define	WDCMSG_SET_LED_STATE		0x21
78 #define	WDCMSG_WRITE_ASSOCID		0x22
79 #define	WDCMSG_SET_STA_BEACON_TIMERS	0x23
80 #define	WDCMSG_GET_TSF			0x24
81 #define	WDCMSG_RESET_TSF		0x25
82 #define	WDCMSG_SET_ADHOC_MODE		0x26
83 #define	WDCMSG_SET_BASIC_RATE		0x27
84 #define	WDCMSG_MIB_CONTROL		0x28
85 #define	WDCMSG_GET_CHANNEL_DATA		0x29
86 #define	WDCMSG_GET_CUR_RSSI		0x2a
87 #define	WDCMSG_SET_ANTENNA_SWITCH	0x2b
88 #define	WDCMSG_USE_SHORT_SLOT_TIME	0x2f
89 #define	WDCMSG_SET_POWER_MODE		0x30
90 #define	WDCMSG_SETUP_PSPOLL_DESC	0x31
91 #define	WDCMSG_SET_RX_MULTICAST_FILTER	0x32
92 #define	WDCMSG_RX_FILTER		0x33
93 #define	WDCMSG_PER_CALIBRATION		0x34
94 #define	WDCMSG_RESET			0x35
95 #define	WDCMSG_DISABLE			0x36
96 #define	WDCMSG_PHY_DISABLE		0x37
97 #define	WDCMSG_SET_TX_POWER_LIMIT	0x38
98 #define	WDCMSG_SET_TX_QUEUE_PARAMS	0x39
99 #define	WDCMSG_SETUP_TX_QUEUE		0x3a
100 #define	WDCMSG_RELEASE_TX_QUEUE		0x3b
101 #define	WDCMSG_SET_DEFAULT_KEY		0x43
102 
103 	__u32		priv;	/* driver private data,
104 				   don't care about endianess */
105 	__be32		magic;
106 	__be32		reserved2[4];
107 };
108 
109 struct ar5523_cmd_host_available {
110 	__be32	sw_ver_major;
111 	__be32	sw_ver_minor;
112 	__be32	sw_ver_patch;
113 	__be32	sw_ver_build;
114 } __packed;
115 
116 #define	ATH_SW_VER_MAJOR	1
117 #define	ATH_SW_VER_MINOR	5
118 #define	ATH_SW_VER_PATCH	0
119 #define	ATH_SW_VER_BUILD	9999
120 
121 struct ar5523_chunk {
122 	u8		seqnum;		/* sequence number for ordering */
123 	u8		flags;
124 #define	UATH_CFLAGS_FINAL	0x01	/* final chunk of a msg */
125 #define	UATH_CFLAGS_RXMSG	0x02	/* chunk contains rx completion */
126 #define	UATH_CFLAGS_DEBUG	0x04	/* for debugging */
127 	__be16		length;		/* chunk size in bytes */
128 	/* chunk data follows */
129 } __packed;
130 
131 /*
132  * Message format for a WDCMSG_DATA_AVAIL message from Target to Host.
133  */
134 struct ar5523_rx_desc {
135 	__be32	len;		/* msg length including header */
136 	__be32	code;		/* WDCMSG_DATA_AVAIL */
137 	__be32	gennum;		/* generation number */
138 	__be32	status;		/* start of RECEIVE_INFO */
139 #define	UATH_STATUS_OK			0
140 #define	UATH_STATUS_STOP_IN_PROGRESS	1
141 #define	UATH_STATUS_CRC_ERR		2
142 #define	UATH_STATUS_PHY_ERR		3
143 #define	UATH_STATUS_DECRYPT_CRC_ERR	4
144 #define	UATH_STATUS_DECRYPT_MIC_ERR	5
145 #define	UATH_STATUS_DECOMP_ERR		6
146 #define	UATH_STATUS_KEY_ERR		7
147 #define	UATH_STATUS_ERR			8
148 	__be32	tstamp_low;	/* low-order 32-bits of rx timestamp */
149 	__be32	tstamp_high;	/* high-order 32-bits of rx timestamp */
150 	__be32	framelen;	/* frame length */
151 	__be32	rate;		/* rx rate code */
152 	__be32	antenna;
153 	__be32	rssi;
154 	__be32	channel;
155 	__be32	phyerror;
156 	__be32	connix;		/* key table ix for bss traffic */
157 	__be32	decrypterror;
158 	__be32	keycachemiss;
159 	__be32	pad;		/* XXX? */
160 } __packed;
161 
162 struct ar5523_tx_desc {
163 	__be32	msglen;
164 	u32	msgid;		/* msg id (supplied by host) */
165 	__be32	type;		/* opcode: WDMSG_SEND or WDCMSG_FLUSH */
166 	__be32	txqid;		/* tx queue id and flags */
167 #define	UATH_TXQID_MASK		0x0f
168 #define	UATH_TXQID_MINRATE	0x10	/* use min tx rate */
169 #define	UATH_TXQID_FF		0x20	/* content is fast frame */
170 	__be32	connid;		/* tx connection id */
171 #define UATH_ID_INVALID	0xffffffff	/* for sending prior to connection */
172 	__be32	flags;		/* non-zero if response desired */
173 #define UATH_TX_NOTIFY	(1 << 24)	/* f/w will send a UATH_NOTIF_TX */
174 	__be32	buflen;		/* payload length */
175 } __packed;
176 
177 
178 #define AR5523_ID_BSS		2
179 #define AR5523_ID_BROADCAST	0xffffffff
180 
181 /* structure for command UATH_CMD_WRITE_MAC */
182 struct ar5523_write_mac {
183 	__be32	reg;
184 	__be32	len;
185 	u8		data[32];
186 } __packed;
187 
188 struct ar5523_cmd_rateset {
189 	__u8		length;
190 #define AR5523_MAX_NRATES	32
191 	__u8		set[AR5523_MAX_NRATES];
192 };
193 
194 struct ar5523_cmd_set_associd {		/* AR5523_WRITE_ASSOCID */
195 	__be32	defaultrateix;
196 	__be32	associd;
197 	__be32	timoffset;
198 	__be32	turboprime;
199 	__u8	bssid[6];
200 } __packed;
201 
202 /* structure for command WDCMSG_RESET */
203 struct ar5523_cmd_reset {
204 	__be32	flags;		/* channel flags */
205 #define	UATH_CHAN_TURBO	0x0100
206 #define	UATH_CHAN_CCK	0x0200
207 #define	UATH_CHAN_OFDM	0x0400
208 #define	UATH_CHAN_2GHZ	0x1000
209 #define	UATH_CHAN_5GHZ	0x2000
210 	__be32	freq;		/* channel frequency */
211 	__be32	maxrdpower;
212 	__be32	cfgctl;
213 	__be32	twiceantennareduction;
214 	__be32	channelchange;
215 	__be32	keeprccontent;
216 } __packed;
217 
218 /* structure for command WDCMSG_SET_BASIC_RATE */
219 struct ar5523_cmd_rates {
220 	__be32	connid;
221 	__be32	keeprccontent;
222 	__be32	size;
223 	struct ar5523_cmd_rateset rateset;
224 } __packed;
225 
226 enum {
227 	WLAN_MODE_NONE = 0,
228 	WLAN_MODE_11b,
229 	WLAN_MODE_11a,
230 	WLAN_MODE_11g,
231 	WLAN_MODE_11a_TURBO,
232 	WLAN_MODE_11g_TURBO,
233 	WLAN_MODE_11a_TURBO_PRIME,
234 	WLAN_MODE_11g_TURBO_PRIME,
235 	WLAN_MODE_11a_XR,
236 	WLAN_MODE_11g_XR,
237 };
238 
239 struct ar5523_cmd_connection_attr {
240 	__be32	longpreambleonly;
241 	struct ar5523_cmd_rateset	rateset;
242 	__be32	wlanmode;
243 } __packed;
244 
245 /* structure for command AR5523_CREATE_CONNECTION */
246 struct ar5523_cmd_create_connection {
247 	__be32	connid;
248 	__be32	bssid;
249 	__be32	size;
250 	struct ar5523_cmd_connection_attr	connattr;
251 } __packed;
252 
253 struct ar5523_cmd_ledsteady {		/* WDCMSG_SET_LED_STEADY */
254 	__be32	lednum;
255 #define UATH_LED_LINK		0
256 #define UATH_LED_ACTIVITY	1
257 	__be32	ledmode;
258 #define UATH_LED_OFF	0
259 #define UATH_LED_ON	1
260 } __packed;
261 
262 struct ar5523_cmd_ledblink {		/* WDCMSG_SET_LED_BLINK */
263 	__be32	lednum;
264 	__be32	ledmode;
265 	__be32	blinkrate;
266 	__be32	slowmode;
267 } __packed;
268 
269 struct ar5523_cmd_ledstate {		/* WDCMSG_SET_LED_STATE */
270 	__be32	connected;
271 } __packed;
272 
273 struct ar5523_cmd_txq_attr {
274 	__be32	priority;
275 	__be32	aifs;
276 	__be32	logcwmin;
277 	__be32	logcwmax;
278 	__be32	bursttime;
279 	__be32	mode;
280 	__be32	qflags;
281 } __packed;
282 
283 struct ar5523_cmd_txq_setup {		/* WDCMSG_SETUP_TX_QUEUE */
284 	__be32	qid;
285 	__be32	len;
286 	struct ar5523_cmd_txq_attr attr;
287 } __packed;
288 
289 struct ar5523_cmd_rx_filter {		/* WDCMSG_RX_FILTER */
290 	__be32	bits;
291 #define UATH_FILTER_RX_UCAST		0x00000001
292 #define UATH_FILTER_RX_MCAST		0x00000002
293 #define UATH_FILTER_RX_BCAST		0x00000004
294 #define UATH_FILTER_RX_CONTROL		0x00000008
295 #define UATH_FILTER_RX_BEACON		0x00000010	/* beacon frames */
296 #define UATH_FILTER_RX_PROM		0x00000020	/* promiscuous mode */
297 #define UATH_FILTER_RX_PHY_ERR		0x00000040	/* phy errors */
298 #define UATH_FILTER_RX_PHY_RADAR	0x00000080	/* radar phy errors */
299 #define UATH_FILTER_RX_XR_POOL		0x00000400	/* XR group polls */
300 #define UATH_FILTER_RX_PROBE_REQ	0x00000800
301 	__be32	op;
302 #define UATH_FILTER_OP_INIT		0x0
303 #define UATH_FILTER_OP_SET		0x1
304 #define UATH_FILTER_OP_CLEAR		0x2
305 #define UATH_FILTER_OP_TEMP		0x3
306 #define UATH_FILTER_OP_RESTORE		0x4
307 } __packed;
308 
309 enum {
310 	CFG_NONE,			/* Sentinal to indicate "no config" */
311 	CFG_REG_DOMAIN,			/* Regulatory Domain */
312 	CFG_RATE_CONTROL_ENABLE,
313 	CFG_DEF_XMIT_DATA_RATE,		/* NB: if rate control is not enabled */
314 	CFG_HW_TX_RETRIES,
315 	CFG_SW_TX_RETRIES,
316 	CFG_SLOW_CLOCK_ENABLE,
317 	CFG_COMP_PROC,
318 	CFG_USER_RTS_THRESHOLD,
319 	CFG_XR2NORM_RATE_THRESHOLD,
320 	CFG_XRMODE_SWITCH_COUNT,
321 	CFG_PROTECTION_TYPE,
322 	CFG_BURST_SEQ_THRESHOLD,
323 	CFG_ABOLT,
324 	CFG_IQ_LOG_COUNT_MAX,
325 	CFG_MODE_CTS,
326 	CFG_WME_ENABLED,
327 	CFG_GPRS_CBR_PERIOD,
328 	CFG_SERVICE_TYPE,
329 	/* MAC Address to use.  Overrides EEPROM */
330 	CFG_MAC_ADDR,
331 	CFG_DEBUG_EAR,
332 	CFG_INIT_REGS,
333 	/* An ID for use in error & debug messages */
334 	CFG_DEBUG_ID,
335 	CFG_COMP_WIN_SZ,
336 	CFG_DIVERSITY_CTL,
337 	CFG_TP_SCALE,
338 	CFG_TPC_HALF_DBM5,
339 	CFG_TPC_HALF_DBM2,
340 	CFG_OVERRD_TX_POWER,
341 	CFG_USE_32KHZ_CLOCK,
342 	CFG_GMODE_PROTECTION,
343 	CFG_GMODE_PROTECT_RATE_INDEX,
344 	CFG_GMODE_NON_ERP_PREAMBLE,
345 	CFG_WDC_TRANSPORT_CHUNK_SIZE,
346 };
347 
348 enum {
349 	/* Sentinal to indicate "no capability" */
350 	CAP_NONE,
351 	CAP_ALL,			/* ALL capabilities */
352 	CAP_TARGET_VERSION,
353 	CAP_TARGET_REVISION,
354 	CAP_MAC_VERSION,
355 	CAP_MAC_REVISION,
356 	CAP_PHY_REVISION,
357 	CAP_ANALOG_5GHz_REVISION,
358 	CAP_ANALOG_2GHz_REVISION,
359 	/* Target supports WDC message debug features */
360 	CAP_DEBUG_WDCMSG_SUPPORT,
361 
362 	CAP_REG_DOMAIN,
363 	CAP_COUNTRY_CODE,
364 	CAP_REG_CAP_BITS,
365 
366 	CAP_WIRELESS_MODES,
367 	CAP_CHAN_SPREAD_SUPPORT,
368 	CAP_SLEEP_AFTER_BEACON_BROKEN,
369 	CAP_COMPRESS_SUPPORT,
370 	CAP_BURST_SUPPORT,
371 	CAP_FAST_FRAMES_SUPPORT,
372 	CAP_CHAP_TUNING_SUPPORT,
373 	CAP_TURBOG_SUPPORT,
374 	CAP_TURBO_PRIME_SUPPORT,
375 	CAP_DEVICE_TYPE,
376 	CAP_XR_SUPPORT,
377 	CAP_WME_SUPPORT,
378 	CAP_TOTAL_QUEUES,
379 	CAP_CONNECTION_ID_MAX,		/* Should absorb CAP_KEY_CACHE_SIZE */
380 
381 	CAP_LOW_5GHZ_CHAN,
382 	CAP_HIGH_5GHZ_CHAN,
383 	CAP_LOW_2GHZ_CHAN,
384 	CAP_HIGH_2GHZ_CHAN,
385 
386 	CAP_MIC_AES_CCM,
387 	CAP_MIC_CKIP,
388 	CAP_MIC_TKIP,
389 	CAP_MIC_TKIP_WME,
390 	CAP_CIPHER_AES_CCM,
391 	CAP_CIPHER_CKIP,
392 	CAP_CIPHER_TKIP,
393 
394 	CAP_TWICE_ANTENNAGAIN_5G,
395 	CAP_TWICE_ANTENNAGAIN_2G,
396 };
397 
398 enum {
399 	ST_NONE,                    /* Sentinal to indicate "no status" */
400 	ST_ALL,
401 	ST_SERVICE_TYPE,
402 	ST_WLAN_MODE,
403 	ST_FREQ,
404 	ST_BAND,
405 	ST_LAST_RSSI,
406 	ST_PS_FRAMES_DROPPED,
407 	ST_CACHED_DEF_ANT,
408 	ST_COUNT_OTHER_RX_ANT,
409 	ST_USE_FAST_DIVERSITY,
410 	ST_MAC_ADDR,
411 	ST_RX_GENERATION_NUM,
412 	ST_TX_QUEUE_DEPTH,
413 	ST_SERIAL_NUMBER,
414 	ST_WDC_TRANSPORT_CHUNK_SIZE,
415 };
416 
417 enum {
418 	TARGET_DEVICE_AWAKE,
419 	TARGET_DEVICE_SLEEP,
420 	TARGET_DEVICE_PWRDN,
421 	TARGET_DEVICE_PWRSAVE,
422 	TARGET_DEVICE_SUSPEND,
423 	TARGET_DEVICE_RESUME,
424 };
425 
426 /* this is in net/ieee80211.h, but that conflicts with the mac80211 headers */
427 #define IEEE80211_2ADDR_LEN	16
428 
429 #define AR5523_MIN_RXBUFSZ				\
430 	(((sizeof(__be32) + IEEE80211_2ADDR_LEN +	\
431 	   sizeof(struct ar5523_rx_desc)) + 3) & ~3)
432