xref: /freebsd/sys/dev/wpi/if_wpireg.h (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1 /*	$FreeBSD$	*/
2 
3 /*-
4  * Copyright (c) 2006,2007
5  *	Damien Bergamini <damien.bergamini@free.fr>
6  *
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.
10  *
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.
18  */
19 
20 #define WPI_TX_RING_COUNT	256
21 #define WPI_TX_RING_LOMARK	192
22 #define WPI_TX_RING_HIMARK	224
23 
24 #ifdef DIAGNOSTIC
25 #define WPI_RX_RING_COUNT_LOG	8
26 #else
27 #define WPI_RX_RING_COUNT_LOG	6
28 #endif
29 
30 #define WPI_RX_RING_COUNT	(1 << WPI_RX_RING_COUNT_LOG)
31 
32 #define WPI_NTXQUEUES		8
33 #define WPI_DRV_NTXQUEUES	5
34 #define WPI_CMD_QUEUE_NUM	4
35 
36 #define WPI_NDMACHNLS		6
37 
38 /* Maximum scatter/gather. */
39 #define WPI_MAX_SCATTER		4
40 
41 /*
42  * Rings must be aligned on a 16K boundary.
43  */
44 #define WPI_RING_DMA_ALIGN	0x4000
45 
46 /* Maximum Rx buffer size. */
47 #define WPI_RBUF_SIZE ( 3 * 1024 ) /* XXX 3000 but must be aligned */
48 
49 /*
50  * Control and status registers.
51  */
52 #define WPI_HW_IF_CONFIG	0x000
53 #define WPI_INT			0x008
54 #define WPI_INT_MASK		0x00c
55 #define WPI_FH_INT		0x010
56 #define WPI_GPIO_IN		0x018
57 #define WPI_RESET		0x020
58 #define WPI_GP_CNTRL		0x024
59 #define WPI_EEPROM		0x02c
60 #define WPI_EEPROM_GP		0x030
61 #define WPI_GIO			0x03c
62 #define WPI_UCODE_GP1		0x054
63 #define WPI_UCODE_GP1_SET	0x058
64 #define WPI_UCODE_GP1_CLR	0x05c
65 #define WPI_UCODE_GP2		0x060
66 #define WPI_GIO_CHICKEN		0x100
67 #define WPI_ANA_PLL		0x20c
68 #define WPI_DBG_HPET_MEM	0x240
69 #define WPI_MEM_RADDR		0x40c
70 #define WPI_MEM_WADDR		0x410
71 #define WPI_MEM_WDATA		0x418
72 #define WPI_MEM_RDATA		0x41c
73 #define WPI_PRPH_WADDR		0x444
74 #define WPI_PRPH_RADDR		0x448
75 #define WPI_PRPH_WDATA		0x44c
76 #define WPI_PRPH_RDATA		0x450
77 #define WPI_HBUS_TARG_WRPTR	0x460
78 
79 /*
80  * Flow-Handler registers.
81  */
82 #define WPI_FH_CBBC_CTRL(qid)	(0x940 + (qid) * 8)
83 #define WPI_FH_CBBC_BASE(qid)	(0x944 + (qid) * 8)
84 #define WPI_FH_RX_CONFIG	0xc00
85 #define WPI_FH_RX_BASE		0xc04
86 #define WPI_FH_RX_WPTR		0xc20
87 #define WPI_FH_RX_RPTR_ADDR	0xc24
88 #define WPI_FH_RSSR_TBL		0xcc0
89 #define WPI_FH_RX_STATUS	0xcc4
90 #define WPI_FH_TX_CONFIG(qid)	(0xd00 + (qid) * 32)
91 #define WPI_FH_TX_BASE		0xe80
92 #define WPI_FH_MSG_CONFIG	0xe88
93 #define WPI_FH_TX_STATUS	0xe90
94 
95 /*
96  * NIC internal memory offsets.
97  */
98 #define WPI_ALM_SCHED_MODE		0x2e00
99 #define WPI_ALM_SCHED_ARASTAT		0x2e04
100 #define WPI_ALM_SCHED_TXFACT		0x2e10
101 #define WPI_ALM_SCHED_TXF4MF		0x2e14
102 #define WPI_ALM_SCHED_TXF5MF		0x2e20
103 #define WPI_ALM_SCHED_SBYPASS_MODE1	0x2e2c
104 #define WPI_ALM_SCHED_SBYPASS_MODE2	0x2e30
105 #define WPI_APMG_CLK_CTRL		0x3000
106 #define WPI_APMG_CLK_EN			0x3004
107 #define WPI_APMG_CLK_DIS		0x3008
108 #define WPI_APMG_PS			0x300c
109 #define WPI_APMG_PCI_STT		0x3010
110 #define WPI_APMG_RFKILL			0x3014
111 #define WPI_BSM_WR_CTRL			0x3400
112 #define WPI_BSM_WR_MEM_SRC		0x3404
113 #define WPI_BSM_WR_MEM_DST		0x3408
114 #define WPI_BSM_WR_DWCOUNT		0x340c
115 #define WPI_BSM_DRAM_TEXT_ADDR		0x3490
116 #define WPI_BSM_DRAM_TEXT_SIZE		0x3494
117 #define WPI_BSM_DRAM_DATA_ADDR		0x3498
118 #define WPI_BSM_DRAM_DATA_SIZE		0x349c
119 #define WPI_BSM_SRAM_BASE		0x3800
120 
121 /* Possible flags for register WPI_HW_IF_CONFIG. */
122 #define WPI_HW_IF_CONFIG_ALM_MB		(1 << 8)
123 #define WPI_HW_IF_CONFIG_ALM_MM		(1 << 9)
124 #define WPI_HW_IF_CONFIG_SKU_MRC	(1 << 10)
125 #define WPI_HW_IF_CONFIG_REV_D		(1 << 11)
126 #define WPI_HW_IF_CONFIG_TYPE_B		(1 << 12)
127 
128 /* Possible flags for registers WPI_PRPH_RADDR/WPI_PRPH_WADDR. */
129 #define WPI_PRPH_DWORD	((sizeof (uint32_t) - 1) << 24)
130 
131 /* Possible values for WPI_BSM_WR_MEM_DST. */
132 #define WPI_FW_TEXT_BASE	0x00000000
133 #define WPI_FW_DATA_BASE	0x00800000
134 
135 /* Possible flags for WPI_GPIO_IN. */
136 #define WPI_GPIO_IN_VMAIN	(1 << 9)
137 
138 /* Possible flags for register WPI_RESET. */
139 #define WPI_RESET_NEVO			(1 << 0)
140 #define WPI_RESET_SW			(1 << 7)
141 #define WPI_RESET_MASTER_DISABLED	(1 << 8)
142 #define WPI_RESET_STOP_MASTER		(1 << 9)
143 
144 /* Possible flags for register WPI_GP_CNTRL. */
145 #define WPI_GP_CNTRL_MAC_ACCESS_ENA	(1 <<  0)
146 #define WPI_GP_CNTRL_MAC_CLOCK_READY	(1 <<  0)
147 #define WPI_GP_CNTRL_INIT_DONE		(1 <<  2)
148 #define WPI_GP_CNTRL_MAC_ACCESS_REQ	(1 <<  3)
149 #define WPI_GP_CNTRL_SLEEP		(1 <<  4)
150 #define WPI_GP_CNTRL_PS_MASK		(7 << 24)
151 #define WPI_GP_CNTRL_MAC_PS		(4 << 24)
152 #define WPI_GP_CNTRL_RFKILL		(1 << 27)
153 
154 /* Possible flags for register WPI_GIO_CHICKEN. */
155 #define WPI_GIO_CHICKEN_L1A_NO_L0S_RX	(1 << 23)
156 #define WPI_GIO_CHICKEN_DIS_L0S_TIMER	(1 << 29)
157 
158 /* Possible flags for register WPI_GIO. */
159 #define WPI_GIO_L0S_ENA			(1 << 1)
160 
161 /* Possible flags for register WPI_FH_RX_CONFIG. */
162 #define WPI_FH_RX_CONFIG_DMA_ENA	(1U  << 31)
163 #define WPI_FH_RX_CONFIG_RDRBD_ENA	(1   << 29)
164 #define WPI_FH_RX_CONFIG_WRSTATUS_ENA	(1   << 27)
165 #define WPI_FH_RX_CONFIG_MAXFRAG	(1   << 24)
166 #define WPI_FH_RX_CONFIG_NRBD(x)	((x) << 20)
167 #define WPI_FH_RX_CONFIG_IRQ_DST_HOST	(1   << 12)
168 #define WPI_FH_RX_CONFIG_IRQ_TIMEOUT(x)	((x) <<  4)
169 
170 /* Possible flags for register WPI_ANA_PLL. */
171 #define WPI_ANA_PLL_INIT	(1 << 24)
172 
173 /* Possible flags for register WPI_UCODE_GP1*. */
174 #define WPI_UCODE_GP1_MAC_SLEEP		(1 << 0)
175 #define WPI_UCODE_GP1_RFKILL		(1 << 1)
176 #define WPI_UCODE_GP1_CMD_BLOCKED	(1 << 2)
177 
178 /* Possible flags for register WPI_FH_RX_STATUS. */
179 #define	WPI_FH_RX_STATUS_IDLE	(1 << 24)
180 
181 /* Possible flags for register WPI_BSM_WR_CTRL. */
182 #define WPI_BSM_WR_CTRL_START_EN	(1  << 30)
183 #define WPI_BSM_WR_CTRL_START		(1U << 31)
184 
185 /* Possible flags for register WPI_INT. */
186 #define WPI_INT_ALIVE		(1  <<  0)
187 #define WPI_INT_WAKEUP		(1  <<  1)
188 #define WPI_INT_SW_RX		(1  <<  3)
189 #define WPI_INT_SW_ERR		(1  << 25)
190 #define WPI_INT_FH_TX		(1  << 27)
191 #define WPI_INT_HW_ERR		(1  << 29)
192 #define WPI_INT_FH_RX		(1U << 31)
193 
194 /* Shortcut. */
195 #define WPI_INT_MASK_DEF					\
196 	(WPI_INT_SW_ERR | WPI_INT_HW_ERR | WPI_INT_FH_TX  |	\
197 	 WPI_INT_FH_RX  | WPI_INT_ALIVE  | WPI_INT_WAKEUP |	\
198 	 WPI_INT_SW_RX)
199 
200 /* Possible flags for register WPI_FH_INT. */
201 #define WPI_FH_INT_RX_CHNL(x)	(1 << ((x) + 16))
202 #define WPI_FH_INT_HI_PRIOR	(1 << 30)
203 /* Shortcuts for the above. */
204 #define WPI_FH_INT_RX			\
205 	(WPI_FH_INT_RX_CHNL(0) |	\
206 	 WPI_FH_INT_RX_CHNL(1) |	\
207 	 WPI_FH_INT_RX_CHNL(2) |	\
208 	 WPI_FH_INT_HI_PRIOR)
209 
210 /* Possible flags for register WPI_FH_TX_STATUS. */
211 #define WPI_FH_TX_STATUS_IDLE(qid)	\
212 	(1 << ((qid) + 24) | 1 << ((qid) + 16))
213 
214 /* Possible flags for register WPI_EEPROM. */
215 #define WPI_EEPROM_READ_VALID	(1 << 0)
216 
217 /* Possible flags for register WPI_EEPROM_GP. */
218 #define WPI_EEPROM_VERSION	0x00000007
219 #define WPI_EEPROM_GP_IF_OWNER	0x00000180
220 
221 /* Possible flags for register WPI_APMG_PS. */
222 #define WPI_APMG_PS_PWR_SRC_MASK	(3 << 24)
223 
224 /* Possible flags for registers WPI_APMG_CLK_*. */
225 #define WPI_APMG_CLK_CTRL_DMA_CLK_RQT	(1 <<  9)
226 #define WPI_APMG_CLK_CTRL_BSM_CLK_RQT	(1 << 11)
227 
228 /* Possible flags for register WPI_APMG_PCI_STT. */
229 #define WPI_APMG_PCI_STT_L1A_DIS	(1 << 11)
230 
231 struct wpi_shared {
232 	uint32_t	txbase[WPI_NTXQUEUES];
233 	uint32_t	next;
234 	uint32_t	reserved[2];
235 } __packed;
236 
237 #define WPI_MAX_SEG_LEN	65520
238 struct wpi_tx_desc {
239 	uint8_t		reserved1[3];
240 	uint8_t		nsegs;
241 #define WPI_PAD32(x)	(roundup2(x, 4) - (x))
242 
243 	struct {
244 		uint32_t	addr;
245 		uint32_t	len;
246 	} __packed	segs[WPI_MAX_SCATTER];
247 	uint8_t		reserved2[28];
248 } __packed;
249 
250 struct wpi_tx_stat {
251 	uint8_t		rtsfailcnt;
252 	uint8_t		ackfailcnt;
253 	uint8_t		btkillcnt;
254 	uint8_t		rate;
255 	uint32_t	duration;
256 	uint32_t	status;
257 #define WPI_TX_STATUS_SUCCESS			0x01
258 #define WPI_TX_STATUS_DIRECT_DONE		0x02
259 #define WPI_TX_STATUS_FAIL			0x80
260 #define WPI_TX_STATUS_FAIL_SHORT_LIMIT		0x82
261 #define WPI_TX_STATUS_FAIL_LONG_LIMIT		0x83
262 #define WPI_TX_STATUS_FAIL_FIFO_UNDERRUN	0x84
263 #define WPI_TX_STATUS_FAIL_MGMNT_ABORT		0x85
264 #define WPI_TX_STATUS_FAIL_NEXT_FRAG		0x86
265 #define WPI_TX_STATUS_FAIL_LIFE_EXPIRE		0x87
266 #define WPI_TX_STATUS_FAIL_NODE_PS		0x88
267 #define WPI_TX_STATUS_FAIL_ABORTED		0x89
268 #define WPI_TX_STATUS_FAIL_BT_RETRY		0x8a
269 #define WPI_TX_STATUS_FAIL_NODE_INVALID		0x8b
270 #define WPI_TX_STATUS_FAIL_FRAG_DROPPED		0x8c
271 #define WPI_TX_STATUS_FAIL_TID_DISABLE		0x8d
272 #define WPI_TX_STATUS_FAIL_FRAME_FLUSHED	0x8e
273 #define WPI_TX_STATUS_FAIL_INSUFFICIENT_CF_POLL	0x8f
274 #define WPI_TX_STATUS_FAIL_TX_LOCKED		0x90
275 #define WPI_TX_STATUS_FAIL_NO_BEACON_ON_RADAR	0x91
276 
277 } __packed;
278 
279 struct wpi_rx_desc {
280 	uint32_t	len;
281 	uint8_t		type;
282 #define WPI_UC_READY		  1
283 #define WPI_RX_DONE		 27
284 #define WPI_TX_DONE		 28
285 #define WPI_START_SCAN		130
286 #define WPI_SCAN_RESULTS	131
287 #define WPI_STOP_SCAN		132
288 #define WPI_BEACON_SENT		144
289 #define WPI_RX_STATISTICS	156
290 #define WPI_BEACON_STATISTICS	157
291 #define WPI_STATE_CHANGED	161
292 #define WPI_BEACON_MISSED	162
293 
294 	uint8_t		flags;
295 	uint8_t		idx;
296 	uint8_t		qid;
297 } __packed;
298 
299 #define WPI_RX_DESC_QID_MSK		0x07
300 #define WPI_UNSOLICITED_RX_NOTIF	0x80
301 
302 struct wpi_rx_stat {
303 	uint8_t		len;
304 #define WPI_STAT_MAXLEN	20
305 
306 	uint8_t		id;
307 	uint8_t		rssi;	/* received signal strength */
308 #define WPI_RSSI_OFFSET	-95
309 
310 	uint8_t		agc;	/* access gain control */
311 	uint16_t	signal;
312 	uint16_t	noise;
313 } __packed;
314 
315 struct wpi_rx_head {
316 	uint16_t	chan;
317 	uint16_t	flags;
318 #define WPI_STAT_FLAG_SHPREAMBLE	(1 << 2)
319 
320 	uint8_t		reserved;
321 	uint8_t		plcp;
322 	uint16_t	len;
323 } __packed;
324 
325 struct wpi_rx_tail {
326 	uint32_t	flags;
327 #define WPI_RX_NO_CRC_ERR	(1 << 0)
328 #define WPI_RX_NO_OVFL_ERR	(1 << 1)
329 /* shortcut for the above */
330 #define WPI_RX_NOERROR		(WPI_RX_NO_CRC_ERR | WPI_RX_NO_OVFL_ERR)
331 #define WPI_RX_CIPHER_MASK	(7 <<  8)
332 #define WPI_RX_CIPHER_CCMP	(2 <<  8)
333 #define WPI_RX_DECRYPT_MASK	(3 << 11)
334 #define WPI_RX_DECRYPT_OK	(3 << 11)
335 
336 	uint64_t	tstamp;
337 	uint32_t	tbeacon;
338 } __packed;
339 
340 struct wpi_tx_cmd {
341 	uint8_t	code;
342 #define WPI_CMD_RXON		 16
343 #define WPI_CMD_RXON_ASSOC	 17
344 #define WPI_CMD_EDCA_PARAMS	 19
345 #define WPI_CMD_TIMING		 20
346 #define WPI_CMD_ADD_NODE	 24
347 #define WPI_CMD_DEL_NODE	 25
348 #define WPI_CMD_TX_DATA		 28
349 #define WPI_CMD_MRR_SETUP	 71
350 #define WPI_CMD_SET_LED		 72
351 #define WPI_CMD_SET_POWER_MODE	119
352 #define WPI_CMD_SCAN		128
353 #define WPI_CMD_SCAN_ABORT	129
354 #define WPI_CMD_SET_BEACON	145
355 #define WPI_CMD_TXPOWER		151
356 #define WPI_CMD_BT_COEX		155
357 #define WPI_CMD_GET_STATISTICS	156
358 
359 	uint8_t	flags;
360 	uint8_t	idx;
361 	uint8_t	qid;
362 	uint8_t	data[124];
363 } __packed;
364 
365 /* Structure for command WPI_CMD_RXON. */
366 struct wpi_rxon {
367 	uint8_t		myaddr[IEEE80211_ADDR_LEN];
368 	uint16_t	reserved1;
369 	uint8_t		bssid[IEEE80211_ADDR_LEN];
370 	uint16_t	reserved2;
371 	uint8_t		wlap[IEEE80211_ADDR_LEN];
372 	uint16_t	reserved3;
373 	uint8_t		mode;
374 #define WPI_MODE_HOSTAP		1
375 #define WPI_MODE_STA		3
376 #define WPI_MODE_IBSS		4
377 #define WPI_MODE_MONITOR	6
378 
379 	uint8_t		air;
380 	uint16_t	reserved4;
381 	uint8_t		ofdm_mask;
382 	uint8_t		cck_mask;
383 	uint16_t	associd;
384 	uint32_t	flags;
385 #define WPI_RXON_24GHZ		(1 <<  0)
386 #define WPI_RXON_CCK		(1 <<  1)
387 #define WPI_RXON_AUTO		(1 <<  2)
388 #define WPI_RXON_SHSLOT		(1 <<  4)
389 #define WPI_RXON_SHPREAMBLE	(1 <<  5)
390 #define WPI_RXON_NODIVERSITY	(1 <<  7)
391 #define WPI_RXON_ANTENNA_A	(1 <<  8)
392 #define WPI_RXON_ANTENNA_B	(1 <<  9)
393 #define WPI_RXON_TSF		(1 << 15)
394 #define WPI_RXON_CTS_TO_SELF	(1 << 30)
395 
396 	uint32_t	filter;
397 #define WPI_FILTER_PROMISC	(1 << 0)
398 #define WPI_FILTER_CTL		(1 << 1)
399 #define WPI_FILTER_MULTICAST	(1 << 2)
400 #define WPI_FILTER_NODECRYPT	(1 << 3)
401 #define WPI_FILTER_BSS		(1 << 5)
402 #define WPI_FILTER_BEACON	(1 << 6)
403 #define WPI_FILTER_ASSOC	(1 << 7)    /* Accept associaton requests. */
404 
405 	uint8_t		chan;
406 	uint16_t	reserved5;
407 } __packed;
408 
409 /* Structure for command WPI_CMD_RXON_ASSOC. */
410 struct wpi_assoc {
411 	uint32_t	flags;
412 	uint32_t	filter;
413 	uint8_t		ofdm_mask;
414 	uint8_t		cck_mask;
415 	uint16_t	reserved;
416 } __packed;
417 
418 /* Structure for command WPI_CMD_EDCA_PARAMS. */
419 struct wpi_edca_params {
420 	uint32_t	flags;
421 #define WPI_EDCA_UPDATE	(1 << 0)
422 
423 	struct {
424 		uint16_t	cwmin;
425 		uint16_t	cwmax;
426 		uint8_t		aifsn;
427 		uint8_t		reserved;
428 		uint16_t	txoplimit;
429 	} __packed	ac[WME_NUM_AC];
430 } __packed;
431 
432 /* Structure for command WPI_CMD_TIMING. */
433 struct wpi_cmd_timing {
434 	uint64_t	tstamp;
435 	uint16_t	bintval;
436 	uint16_t	atim;
437 	uint32_t	binitval;
438 	uint16_t	lintval;
439 	uint16_t	reserved;
440 } __packed;
441 
442 /* Structure for command WPI_CMD_ADD_NODE. */
443 struct wpi_node_info {
444 	uint8_t		control;
445 #define WPI_NODE_UPDATE		(1 << 0)
446 
447 	uint8_t		reserved1[3];
448 	uint8_t		macaddr[IEEE80211_ADDR_LEN];
449 	uint16_t	reserved2;
450 	uint8_t		id;
451 #define WPI_ID_BSS		0
452 #define WPI_ID_IBSS_MIN		2
453 #define WPI_ID_IBSS_MAX		23
454 #define WPI_ID_BROADCAST	24
455 #define WPI_ID_UNDEFINED	(uint8_t)-1
456 
457 	uint8_t		flags;
458 #define WPI_FLAG_KEY_SET	(1 << 0)
459 
460 	uint16_t	reserved3;
461 	uint16_t	kflags;
462 #define WPI_KFLAG_CCMP		(1 <<  1)
463 #define WPI_KFLAG_KID(kid)	((kid) << 8)
464 #define WPI_KFLAG_MULTICAST	(1 << 14)
465 
466 	uint8_t		tsc2;
467 	uint8_t		reserved4;
468 	uint16_t	ttak[5];
469 	uint16_t	reserved5;
470 	uint8_t		key[IEEE80211_KEYBUF_SIZE];
471 	uint32_t	action;
472 #define WPI_ACTION_SET_RATE	(1 << 2)
473 
474 	uint32_t	mask;
475 	uint16_t	tid;
476 	uint8_t		plcp;
477 	uint8_t		antenna;
478 #define WPI_ANTENNA_A		(1 << 6)
479 #define WPI_ANTENNA_B		(1 << 7)
480 #define WPI_ANTENNA_BOTH	(WPI_ANTENNA_A | WPI_ANTENNA_B)
481 
482 	uint8_t		add_imm;
483 	uint8_t		del_imm;
484 	uint16_t	add_imm_start;
485 } __packed;
486 
487 /* Structure for command WPI_CMD_DEL_NODE. */
488 struct wpi_cmd_del_node {
489 	uint8_t		count;
490 	uint8_t		reserved1[3];
491 	uint8_t		macaddr[IEEE80211_ADDR_LEN];
492 	uint16_t	reserved2;
493 } __packed;
494 
495 /* Structure for command WPI_CMD_TX_DATA. */
496 struct wpi_cmd_data {
497 	uint16_t	len;
498 	uint16_t	lnext;
499 	uint32_t	flags;
500 #define WPI_TX_NEED_RTS		(1 <<  1)
501 #define WPI_TX_NEED_CTS		(1 <<  2)
502 #define WPI_TX_NEED_ACK		(1 <<  3)
503 #define WPI_TX_FULL_TXOP	(1 <<  7)
504 #define WPI_TX_BT_DISABLE	(1 << 12) 	/* bluetooth coexistence */
505 #define WPI_TX_AUTO_SEQ		(1 << 13)
506 #define WPI_TX_MORE_FRAG	(1 << 14)
507 #define WPI_TX_INSERT_TSTAMP	(1 << 16)
508 
509 	uint8_t		plcp;
510 	uint8_t		id;
511 	uint8_t		tid;
512 	uint8_t		security;
513 #define WPI_CIPHER_WEP		1
514 #define WPI_CIPHER_CCMP		2
515 #define WPI_CIPHER_TKIP		3
516 #define WPI_CIPHER_WEP104	9
517 
518 	uint8_t		key[IEEE80211_KEYBUF_SIZE];
519 	uint8_t		tkip[IEEE80211_WEP_MICLEN];
520 	uint32_t	fnext;
521 #define WPI_NEXT_STA_ID(id)	((id) << 8)
522 
523 	uint32_t	lifetime;
524 #define WPI_LIFETIME_INFINITE	0xffffffff
525 
526 	uint8_t		ofdm_mask;
527 	uint8_t		cck_mask;
528 	uint8_t		rts_ntries;
529 	uint8_t		data_ntries;
530 	uint16_t	timeout;
531 	uint16_t	txop;
532 } __packed;
533 
534 /* Structure for command WPI_CMD_SET_BEACON. */
535 struct wpi_cmd_beacon {
536 	uint16_t	len;
537 	uint16_t	reserved1;
538 	uint32_t	flags;	/* same as wpi_cmd_data */
539 	uint8_t		plcp;
540 	uint8_t		id;
541 	uint8_t		reserved2[30];
542 	uint32_t	lifetime;
543 	uint8_t		ofdm_mask;
544 	uint8_t		cck_mask;
545 	uint16_t	reserved3[3];
546 	uint16_t	tim;
547 	uint8_t		timsz;
548 	uint8_t		reserved4;
549 } __packed;
550 
551 /* Structure for notification WPI_BEACON_MISSED. */
552 struct wpi_beacon_missed {
553 	uint32_t consecutive;
554 	uint32_t total;
555 	uint32_t expected;
556 	uint32_t received;
557 } __packed;
558 
559 /* Structure for command WPI_CMD_MRR_SETUP. */
560 #define WPI_RIDX_MAX	11
561 struct wpi_mrr_setup {
562 	uint32_t	which;
563 #define WPI_MRR_CTL	0
564 #define WPI_MRR_DATA	1
565 
566 	struct {
567 		uint8_t	plcp;
568 		uint8_t	flags;
569 		uint8_t	ntries;
570 #define		WPI_NTRIES_DEFAULT	2
571 
572 		uint8_t	next;
573 	} __packed	rates[WPI_RIDX_MAX + 1];
574 } __packed;
575 
576 /* Structure for command WPI_CMD_SET_LED. */
577 struct wpi_cmd_led {
578 	uint32_t	unit;	/* multiplier (in usecs) */
579 	uint8_t		which;
580 #define WPI_LED_ACTIVITY	1
581 #define WPI_LED_LINK		2
582 
583 	uint8_t		off;
584 	uint8_t		on;
585 	uint8_t		reserved;
586 } __packed;
587 
588 /* Structure for command WPI_CMD_SET_POWER_MODE. */
589 struct wpi_pmgt_cmd {
590 	uint16_t	flags;
591 #define WPI_PS_ALLOW_SLEEP	(1 << 0)
592 #define WPI_PS_NOTIFY		(1 << 1)
593 #define WPI_PS_SLEEP_OVER_DTIM	(1 << 2)
594 #define WPI_PS_PCI_PMGT		(1 << 3)
595 
596 	uint8_t		reserved[2];
597 	uint32_t	rxtimeout;
598 	uint32_t	txtimeout;
599 	uint32_t	intval[5];
600 } __packed;
601 
602 /* Structures for command WPI_CMD_SCAN. */
603 #define WPI_SCAN_MAX_ESSIDS	4
604 struct wpi_scan_essid {
605 	uint8_t	id;
606 	uint8_t	len;
607 	uint8_t	data[IEEE80211_NWID_LEN];
608 } __packed;
609 
610 struct wpi_scan_hdr {
611 	uint16_t	len;
612 	uint8_t		reserved1;
613 	uint8_t		nchan;
614 	uint16_t	quiet_time;	/* timeout in milliseconds */
615 #define WPI_QUIET_TIME_DEFAULT		10
616 
617 	uint16_t	quiet_threshold; /* min # of packets */
618 	uint16_t	crc_threshold;
619 	uint16_t	reserved2;
620 	uint32_t	max_svc;	/* background scans */
621 	uint32_t	pause_svc;	/* background scans */
622 #define WPI_PAUSE_MAX_TIME		((1 << 20) - 1)
623 #define WPI_PAUSE_SCAN(nbeacons, time)	((nbeacons << 24) | time)
624 
625 	uint32_t	flags;
626 	uint32_t	filter;
627 
628 	/* Followed by a struct wpi_cmd_data. */
629 	/* Followed by an array of 4 structs wpi_scan_essid. */
630 	/* Followed by probe request body. */
631 	/* Followed by an array of ``nchan'' structs wpi_scan_chan. */
632 } __packed;
633 
634 struct wpi_scan_chan {
635 	uint8_t		flags;
636 #define WPI_CHAN_ACTIVE		(1 << 0)
637 #define WPI_CHAN_NPBREQS(x)	(((1 << (x)) - 1) << 1)
638 
639 	uint8_t		chan;
640 	uint8_t		rf_gain;
641 	uint8_t		dsp_gain;
642 	uint16_t	active;		/* msecs */
643 	uint16_t	passive;	/* msecs */
644 } __packed;
645 
646 #define WPI_SCAN_CRC_TH_DEFAULT		htole16(1)
647 #define WPI_SCAN_CRC_TH_NEVER		htole16(0xffff)
648 
649 /* Maximum size of a scan command. */
650 #define WPI_SCAN_MAXSZ	(MCLBYTES - 4)
651 
652 #define WPI_ACTIVE_DWELL_TIME_2GHZ	(30)	/* all times in msec */
653 #define WPI_ACTIVE_DWELL_TIME_5GHZ	(20)
654 #define WPI_ACTIVE_DWELL_FACTOR_2GHZ	( 3)
655 #define WPI_ACTIVE_DWELL_FACTOR_5GHZ	( 2)
656 
657 #define WPI_PASSIVE_DWELL_TIME_2GHZ	( 20)
658 #define WPI_PASSIVE_DWELL_TIME_5GHZ	( 10)
659 #define WPI_PASSIVE_DWELL_BASE		(100)
660 #define WPI_CHANNEL_TUNE_TIME		(  6)
661 
662 /* Structure for command WPI_CMD_TXPOWER. */
663 struct wpi_cmd_txpower {
664 	uint8_t		band;
665 #define WPI_BAND_5GHZ	0
666 #define WPI_BAND_2GHZ	1
667 
668 	uint8_t		reserved;
669 	uint16_t	chan;
670 
671 	struct {
672 		uint8_t	plcp;
673 		uint8_t	rf_gain;
674 		uint8_t	dsp_gain;
675 		uint8_t	reserved;
676 	} __packed	rates[WPI_RIDX_MAX + 1];
677 
678 } __packed;
679 
680 /* Structure for command WPI_CMD_BT_COEX. */
681 struct wpi_bluetooth {
682 	uint8_t		flags;
683 #define WPI_BT_COEX_DISABLE	0
684 #define WPI_BT_COEX_MODE_2WIRE	1
685 #define WPI_BT_COEX_MODE_3WIRE	2
686 #define WPI_BT_COEX_MODE_4WIRE	3
687 
688 	uint8_t		lead_time;
689 #define WPI_BT_LEAD_TIME_DEF	30
690 
691 	uint8_t		max_kill;
692 #define WPI_BT_MAX_KILL_DEF	5
693 
694 	uint8_t		reserved;
695 	uint32_t	kill_ack;
696 	uint32_t	kill_cts;
697 } __packed;
698 
699 /* Structure for WPI_UC_READY notification. */
700 struct wpi_ucode_info {
701 	uint8_t		minor;
702 	uint8_t		major;
703 	uint16_t	reserved1;
704 	uint8_t		revision[8];
705 	uint8_t		type;
706 	uint8_t		subtype;
707 	uint16_t	reserved2;
708 	uint32_t	logptr;
709 	uint32_t	errptr;
710 	uint32_t	tstamp;
711 	uint32_t	valid;
712 } __packed;
713 
714 /* Structure for WPI_START_SCAN notification. */
715 struct wpi_start_scan {
716 	uint64_t	tstamp;
717 	uint32_t	tbeacon;
718 	uint8_t		chan;
719 	uint8_t		band;
720 	uint16_t	reserved;
721 	uint32_t	status;
722 } __packed;
723 
724 /* Structure for WPI_STOP_SCAN notification. */
725 struct wpi_stop_scan {
726 	uint8_t		nchan;
727 	uint8_t		status;
728 #define WPI_SCAN_COMPLETED	1
729 #define WPI_SCAN_ABORTED	2
730 
731 	uint8_t		reserved;
732 	uint8_t		chan;
733 	uint64_t	tsf;
734 } __packed;
735 
736 /* Structures for WPI_{RX,BEACON}_STATISTICS notification. */
737 struct wpi_rx_phy_stats {
738 	uint32_t	ina;
739 	uint32_t	fina;
740 	uint32_t	bad_plcp;
741 	uint32_t	bad_crc32;
742 	uint32_t	overrun;
743 	uint32_t	eoverrun;
744 	uint32_t	good_crc32;
745 	uint32_t	fa;
746 	uint32_t	bad_fina_sync;
747 	uint32_t	sfd_timeout;
748 	uint32_t	fina_timeout;
749 	uint32_t	no_rts_ack;
750 	uint32_t	rxe_limit;
751 	uint32_t	ack;
752 	uint32_t	cts;
753 } __packed;
754 
755 struct wpi_rx_general_stats {
756 	uint32_t	bad_cts;
757 	uint32_t	bad_ack;
758 	uint32_t	not_bss;
759 	uint32_t	filtered;
760 	uint32_t	bad_chan;
761 } __packed;
762 
763 struct wpi_rx_stats {
764 	struct wpi_rx_phy_stats		ofdm;
765 	struct wpi_rx_phy_stats		cck;
766 	struct wpi_rx_general_stats	general;
767 } __packed;
768 
769 struct wpi_tx_stats {
770 	uint32_t	preamble;
771 	uint32_t	rx_detected;
772 	uint32_t	bt_defer;
773 	uint32_t	bt_kill;
774 	uint32_t	short_len;
775 	uint32_t	cts_timeout;
776 	uint32_t	ack_timeout;
777 	uint32_t	exp_ack;
778 	uint32_t	ack;
779 } __packed;
780 
781 struct wpi_general_stats {
782 	uint32_t	temp;
783 	uint32_t	burst_check;
784 	uint32_t	burst;
785 	uint32_t	reserved[4];
786 	uint32_t	sleep;
787 	uint32_t	slot_out;
788 	uint32_t	slot_idle;
789 	uint32_t	ttl_tstamp;
790 	uint32_t	tx_ant_a;
791 	uint32_t	tx_ant_b;
792 	uint32_t	exec;
793 	uint32_t	probe;
794 } __packed;
795 
796 struct wpi_stats {
797 	uint32_t			flags;
798 	struct wpi_rx_stats		rx;
799 	struct wpi_tx_stats		tx;
800 	struct wpi_general_stats	general;
801 } __packed;
802 
803 /* Possible flags for command WPI_CMD_GET_STATISTICS. */
804 #define WPI_STATISTICS_BEACON_DISABLE	(1 << 1)
805 
806 /* Firmware error dump entry. */
807 struct wpi_fw_dump {
808 	uint32_t	desc;
809 	uint32_t	time;
810 	uint32_t	blink[2];
811 	uint32_t	ilink[2];
812 	uint32_t	data;
813 } __packed;
814 
815 /* Firmware image file header. */
816 struct wpi_firmware_hdr {
817 #define WPI_FW_MINVERSION 2144
818 #define WPI_FW_NAME "wpifw"
819 
820 	uint16_t	driver;
821 	uint8_t		minor;
822 	uint8_t		major;
823 	uint32_t	rtextsz;
824 	uint32_t	rdatasz;
825 	uint32_t	itextsz;
826 	uint32_t	idatasz;
827 	uint32_t	btextsz;
828 } __packed;
829 
830 #define WPI_FW_TEXT_MAXSZ	 ( 80 * 1024 )
831 #define WPI_FW_DATA_MAXSZ	 ( 32 * 1024 )
832 #define WPI_FW_BOOT_TEXT_MAXSZ		1024
833 
834 #define WPI_FW_UPDATED	(1U << 31 )
835 
836 /*
837  * Offsets into EEPROM.
838  */
839 #define WPI_EEPROM_MAC		0x015
840 #define WPI_EEPROM_REVISION	0x035
841 #define WPI_EEPROM_SKU_CAP	0x045
842 #define WPI_EEPROM_TYPE		0x04a
843 #define WPI_EEPROM_DOMAIN	0x060
844 #define WPI_EEPROM_BAND1	0x063
845 #define WPI_EEPROM_BAND2	0x072
846 #define WPI_EEPROM_BAND3	0x080
847 #define WPI_EEPROM_BAND4	0x08d
848 #define WPI_EEPROM_BAND5	0x099
849 #define WPI_EEPROM_POWER_GRP	0x100
850 
851 struct wpi_eeprom_chan {
852 	uint8_t	flags;
853 #define WPI_EEPROM_CHAN_VALID	(1 << 0)
854 #define	WPI_EEPROM_CHAN_IBSS	(1 << 1)
855 #define WPI_EEPROM_CHAN_ACTIVE	(1 << 3)
856 #define WPI_EEPROM_CHAN_RADAR	(1 << 4)
857 
858 	int8_t	maxpwr;
859 } __packed;
860 
861 struct wpi_eeprom_sample {
862 	uint8_t		index;
863 	int8_t		power;
864 	uint16_t	volt;
865 } __packed;
866 
867 #define WPI_POWER_GROUPS_COUNT	5
868 struct wpi_eeprom_group {
869 	struct		wpi_eeprom_sample samples[5];
870 	int32_t		coef[5];
871 	int32_t		corr[5];
872 	int8_t		maxpwr;
873 	uint8_t		chan;
874 	int16_t		temp;
875 } __packed;
876 
877 #define WPI_CHAN_BANDS_COUNT	 5
878 #define WPI_MAX_CHAN_PER_BAND	14
879 static const struct wpi_chan_band {
880 	uint32_t	addr;	/* offset in EEPROM */
881 	uint8_t		nchan;
882 	uint8_t		chan[WPI_MAX_CHAN_PER_BAND];
883 } wpi_bands[] = {
884 	/* 20MHz channels, 2GHz band. */
885 	{ WPI_EEPROM_BAND1, 14,
886 	    { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 } },
887 	/* 20MHz channels, 5GHz band. */
888 	{ WPI_EEPROM_BAND2, 13,
889 	    { 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 } },
890 	{ WPI_EEPROM_BAND3, 12,
891 	    { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 } },
892 	{ WPI_EEPROM_BAND4, 11,
893 	    { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 } },
894 	{ WPI_EEPROM_BAND5, 6,
895 	    { 145, 149, 153, 157, 161, 165 } }
896 };
897 
898 /* HW rate indices. */
899 #define WPI_RIDX_OFDM6	 0
900 #define WPI_RIDX_OFDM36	 5
901 #define WPI_RIDX_OFDM48	 6
902 #define WPI_RIDX_OFDM54	 7
903 #define WPI_RIDX_CCK1	 8
904 #define WPI_RIDX_CCK2	 9
905 #define WPI_RIDX_CCK11	11
906 
907 static const uint8_t wpi_ridx_to_plcp[] = {
908 	/* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
909 	/* R1-R4 (ral/ural is R4-R1) */
910 	0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
911 	/* CCK: device-dependent */
912 	10, 20, 55, 110
913 };
914 
915 #define WPI_MAX_PWR_INDEX	77
916 
917 /*
918  * RF Tx gain values from highest to lowest power (values obtained from
919  * the reference driver.)
920  */
921 static const uint8_t wpi_rf_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = {
922 	0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xbb, 0xbb, 0xbb,
923 	0xbb, 0xf3, 0xf3, 0xf3, 0xf3, 0xf3, 0xd3, 0xd3, 0xb3, 0xb3, 0xb3,
924 	0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x73, 0xeb, 0xeb, 0xeb,
925 	0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xab, 0xab, 0xab, 0x8b,
926 	0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xc3, 0xc3, 0xc3, 0xc3, 0xa3,
927 	0xa3, 0xa3, 0xa3, 0x83, 0x83, 0x83, 0x83, 0x63, 0x63, 0x63, 0x63,
928 	0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23, 0x03, 0x03, 0x03,
929 	0x03
930 };
931 
932 static const uint8_t wpi_rf_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = {
933 	0xfb, 0xfb, 0xfb, 0xdb, 0xdb, 0xbb, 0xbb, 0x9b, 0x9b, 0x7b, 0x7b,
934 	0x7b, 0x7b, 0x5b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x1b, 0x1b,
935 	0x1b, 0x73, 0x73, 0x73, 0x53, 0x53, 0x53, 0x53, 0x53, 0x33, 0x33,
936 	0x33, 0x33, 0x13, 0x13, 0x13, 0x13, 0x13, 0xab, 0xab, 0xab, 0x8b,
937 	0x8b, 0x8b, 0x8b, 0x6b, 0x6b, 0x6b, 0x6b, 0x4b, 0x4b, 0x4b, 0x4b,
938 	0x2b, 0x2b, 0x2b, 0x2b, 0x0b, 0x0b, 0x0b, 0x0b, 0x83, 0x83, 0x63,
939 	0x63, 0x63, 0x63, 0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23,
940 	0x03
941 };
942 
943 /*
944  * DSP pre-DAC gain values from highest to lowest power (values obtained
945  * from the reference driver.)
946  */
947 static const uint8_t wpi_dsp_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = {
948 	0x7f, 0x7f, 0x7f, 0x7f, 0x7d, 0x6e, 0x69, 0x62, 0x7d, 0x73, 0x6c,
949 	0x63, 0x77, 0x6f, 0x69, 0x61, 0x5c, 0x6a, 0x64, 0x78, 0x71, 0x6b,
950 	0x7d, 0x77, 0x70, 0x6a, 0x65, 0x61, 0x5b, 0x6b, 0x79, 0x73, 0x6d,
951 	0x7f, 0x79, 0x73, 0x6c, 0x66, 0x60, 0x5c, 0x6e, 0x68, 0x62, 0x74,
952 	0x7d, 0x77, 0x71, 0x6b, 0x65, 0x60, 0x71, 0x6a, 0x66, 0x5f, 0x71,
953 	0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f,
954 	0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66,
955 	0x5f
956 };
957 
958 static const uint8_t wpi_dsp_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = {
959 	0x7f, 0x78, 0x72, 0x77, 0x65, 0x71, 0x66, 0x72, 0x67, 0x75, 0x6b,
960 	0x63, 0x5c, 0x6c, 0x7d, 0x76, 0x6d, 0x66, 0x60, 0x5a, 0x68, 0x62,
961 	0x5c, 0x76, 0x6f, 0x68, 0x7e, 0x79, 0x71, 0x69, 0x63, 0x76, 0x6f,
962 	0x68, 0x62, 0x74, 0x6d, 0x66, 0x62, 0x5d, 0x71, 0x6b, 0x63, 0x78,
963 	0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63,
964 	0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x6b, 0x63, 0x78,
965 	0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63,
966 	0x78
967 };
968 
969 /*
970  * Power saving settings (values obtained from the reference driver.)
971  */
972 #define WPI_NDTIMRANGES		2
973 #define WPI_NPOWERLEVELS	6
974 static const struct wpi_pmgt {
975 	uint32_t	rxtimeout;
976 	uint32_t	txtimeout;
977 	uint32_t	intval[5];
978 	uint8_t		skip_dtim;
979 } wpi_pmgt[WPI_NDTIMRANGES][WPI_NPOWERLEVELS] = {
980 	/* DTIM <= 10 */
981 	{
982 	{   0,   0, {  0,  0,  0,  0,  0 }, 0 },	/* CAM */
983 	{ 200, 500, {  1,  2,  3,  4,  4 }, 0 },	/* PS level 1 */
984 	{ 200, 300, {  2,  4,  6,  7,  7 }, 0 },	/* PS level 2 */
985 	{  50, 100, {  2,  6,  9,  9, 10 }, 0 },	/* PS level 3 */
986 	{  50,  25, {  2,  7,  9,  9, 10 }, 1 },	/* PS level 4 */
987 	{  25,  25, {  4,  7, 10, 10, 10 }, 1 }		/* PS level 5 */
988 	},
989 	/* DTIM >= 11 */
990 	{
991 	{   0,   0, {  0,  0,  0,  0,  0 }, 0 },	/* CAM */
992 	{ 200, 500, {  1,  2,  3,  4, -1 }, 0 },	/* PS level 1 */
993 	{ 200, 300, {  2,  4,  6,  7, -1 }, 0 },	/* PS level 2 */
994 	{  50, 100, {  2,  6,  9,  9, -1 }, 0 },	/* PS level 3 */
995 	{  50,  25, {  2,  7,  9,  9, -1 }, 0 },	/* PS level 4 */
996 	{  25,  25, {  4,  7, 10, 10, -1 }, 0 }		/* PS level 5 */
997 	}
998 };
999 
1000 /* Firmware errors. */
1001 static const char * const wpi_fw_errmsg[] = {
1002 	"OK",
1003 	"FAIL",
1004 	"BAD_PARAM",
1005 	"BAD_CHECKSUM",
1006 	"NMI_INTERRUPT",
1007 	"SYSASSERT",
1008 	"FATAL_ERROR"
1009 };
1010 
1011 #define WPI_READ(sc, reg)						\
1012 	bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg))
1013 
1014 #define WPI_WRITE(sc, reg, val)						\
1015 	bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val))
1016 
1017 #define WPI_WRITE_REGION_4(sc, offset, datap, count)			\
1018 	bus_space_write_region_4((sc)->sc_st, (sc)->sc_sh, (offset),	\
1019 	    (datap), (count))
1020 
1021 #define WPI_SETBITS(sc, reg, mask)					\
1022 	WPI_WRITE(sc, reg, WPI_READ(sc, reg) | (mask))
1023 
1024 #define WPI_CLRBITS(sc, reg, mask)					\
1025 	WPI_WRITE(sc, reg, WPI_READ(sc, reg) & ~(mask))
1026 
1027 #define WPI_BARRIER_WRITE(sc)						\
1028 	bus_space_barrier((sc)->sc_st, (sc)->sc_sh, 0, (sc)->sc_sz,	\
1029 	    BUS_SPACE_BARRIER_WRITE)
1030 
1031 #define WPI_BARRIER_READ_WRITE(sc)					\
1032 	bus_space_barrier((sc)->sc_st, (sc)->sc_sh, 0, (sc)->sc_sz,	\
1033 	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE)
1034