xref: /freebsd/sys/dev/wpi/if_wpireg.h (revision 193d9e768ba63fcfb187cfd17f461f7d41345048)
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 /*
97  * NIC internal memory offsets.
98  */
99 #define WPI_ALM_SCHED_MODE		0x2e00
100 #define WPI_ALM_SCHED_ARASTAT		0x2e04
101 #define WPI_ALM_SCHED_TXFACT		0x2e10
102 #define WPI_ALM_SCHED_TXF4MF		0x2e14
103 #define WPI_ALM_SCHED_TXF5MF		0x2e20
104 #define WPI_ALM_SCHED_SBYPASS_MODE1	0x2e2c
105 #define WPI_ALM_SCHED_SBYPASS_MODE2	0x2e30
106 #define WPI_APMG_CLK_CTRL		0x3000
107 #define WPI_APMG_CLK_EN			0x3004
108 #define WPI_APMG_CLK_DIS		0x3008
109 #define WPI_APMG_PS			0x300c
110 #define WPI_APMG_PCI_STT		0x3010
111 #define WPI_APMG_RFKILL			0x3014
112 #define WPI_BSM_WR_CTRL			0x3400
113 #define WPI_BSM_WR_MEM_SRC		0x3404
114 #define WPI_BSM_WR_MEM_DST		0x3408
115 #define WPI_BSM_WR_DWCOUNT		0x340c
116 #define WPI_BSM_DRAM_TEXT_ADDR		0x3490
117 #define WPI_BSM_DRAM_TEXT_SIZE		0x3494
118 #define WPI_BSM_DRAM_DATA_ADDR		0x3498
119 #define WPI_BSM_DRAM_DATA_SIZE		0x349c
120 #define WPI_BSM_SRAM_BASE		0x3800
121 
122 
123 /* Possible flags for register WPI_HW_IF_CONFIG. */
124 #define WPI_HW_IF_CONFIG_ALM_MB		(1 << 8)
125 #define WPI_HW_IF_CONFIG_ALM_MM		(1 << 9)
126 #define WPI_HW_IF_CONFIG_SKU_MRC	(1 << 10)
127 #define WPI_HW_IF_CONFIG_REV_D		(1 << 11)
128 #define WPI_HW_IF_CONFIG_TYPE_B		(1 << 12)
129 
130 /* Possible flags for registers WPI_PRPH_RADDR/WPI_PRPH_WADDR. */
131 #define WPI_PRPH_DWORD	((sizeof (uint32_t) - 1) << 24)
132 
133 /* Possible values for WPI_BSM_WR_MEM_DST. */
134 #define WPI_FW_TEXT_BASE	0x00000000
135 #define WPI_FW_DATA_BASE	0x00800000
136 
137 /* Possible flags for WPI_GPIO_IN. */
138 #define WPI_GPIO_IN_VMAIN	(1 << 9)
139 
140 /* Possible flags for register WPI_RESET. */
141 #define WPI_RESET_NEVO			(1 << 0)
142 #define WPI_RESET_SW			(1 << 7)
143 #define WPI_RESET_MASTER_DISABLED	(1 << 8)
144 #define WPI_RESET_STOP_MASTER		(1 << 9)
145 
146 /* Possible flags for register WPI_GP_CNTRL. */
147 #define WPI_GP_CNTRL_MAC_ACCESS_ENA	(1 <<  0)
148 #define WPI_GP_CNTRL_MAC_CLOCK_READY	(1 <<  0)
149 #define WPI_GP_CNTRL_INIT_DONE		(1 <<  2)
150 #define WPI_GP_CNTRL_MAC_ACCESS_REQ	(1 <<  3)
151 #define WPI_GP_CNTRL_SLEEP		(1 <<  4)
152 #define WPI_GP_CNTRL_PS_MASK		(7 << 24)
153 #define WPI_GP_CNTRL_MAC_PS		(4 << 24)
154 #define WPI_GP_CNTRL_RFKILL		(1 << 27)
155 
156 /* Possible flags for register WPI_GIO_CHICKEN. */
157 #define WPI_GIO_CHICKEN_L1A_NO_L0S_RX	(1 << 23)
158 #define WPI_GIO_CHICKEN_DIS_L0S_TIMER	(1 << 29)
159 
160 /* Possible flags for register WPI_GIO. */
161 #define WPI_GIO_L0S_ENA			(1 << 1)
162 
163 /* Possible flags for register WPI_FH_RX_CONFIG. */
164 #define WPI_FH_RX_CONFIG_DMA_ENA	(1U  << 31)
165 #define WPI_FH_RX_CONFIG_RDRBD_ENA	(1   << 29)
166 #define WPI_FH_RX_CONFIG_WRSTATUS_ENA	(1   << 27)
167 #define WPI_FH_RX_CONFIG_MAXFRAG	(1   << 24)
168 #define WPI_FH_RX_CONFIG_NRBD(x)	((x) << 20)
169 #define WPI_FH_RX_CONFIG_IRQ_DST_HOST	(1   << 12)
170 #define WPI_FH_RX_CONFIG_IRQ_TIMEOUT(x)	((x) <<  4)
171 
172 /* Possible flags for register WPI_ANA_PLL. */
173 #define WPI_ANA_PLL_INIT	(1 << 24)
174 
175 /* Possible flags for register WPI_UCODE_GP1*. */
176 #define WPI_UCODE_GP1_MAC_SLEEP		(1 << 0)
177 #define WPI_UCODE_GP1_RFKILL		(1 << 1)
178 #define WPI_UCODE_GP1_CMD_BLOCKED	(1 << 2)
179 
180 /* Possible flags for register WPI_FH_RX_STATUS. */
181 #define	WPI_FH_RX_STATUS_IDLE	(1 << 24)
182 
183 /* Possible flags for register WPI_BSM_WR_CTRL. */
184 #define WPI_BSM_WR_CTRL_START_EN	(1  << 30)
185 #define WPI_BSM_WR_CTRL_START		(1U << 31)
186 
187 /* Possible flags for register WPI_INT. */
188 #define WPI_INT_ALIVE		(1  <<  0)
189 #define WPI_INT_WAKEUP		(1  <<  1)
190 #define WPI_INT_SW_RX		(1  <<  3)
191 #define WPI_INT_SW_ERR		(1  << 25)
192 #define WPI_INT_FH_TX		(1  << 27)
193 #define WPI_INT_HW_ERR		(1  << 29)
194 #define WPI_INT_FH_RX		(1U << 31)
195 
196 /* Shortcut. */
197 #define WPI_INT_MASK_DEF					\
198 	(WPI_INT_SW_ERR | WPI_INT_HW_ERR | WPI_INT_FH_TX  |	\
199 	 WPI_INT_FH_RX  | WPI_INT_ALIVE  | WPI_INT_WAKEUP |	\
200 	 WPI_INT_SW_RX)
201 
202 /* Possible flags for register WPI_FH_INT. */
203 #define WPI_FH_INT_RX_CHNL(x)	(1 << ((x) + 16))
204 #define WPI_FH_INT_HI_PRIOR	(1 << 30)
205 /* Shortcuts for the above. */
206 #define WPI_FH_INT_RX			\
207 	(WPI_FH_INT_RX_CHNL(0) |	\
208 	 WPI_FH_INT_RX_CHNL(1) |	\
209 	 WPI_FH_INT_RX_CHNL(2) |	\
210 	 WPI_FH_INT_HI_PRIOR)
211 
212 /* Possible flags for register WPI_FH_TX_STATUS. */
213 #define WPI_FH_TX_STATUS_IDLE(qid)	\
214 	(1 << ((qid) + 24) | 1 << ((qid) + 16))
215 
216 /* Possible flags for register WPI_EEPROM. */
217 #define WPI_EEPROM_READ_VALID	(1 << 0)
218 
219 /* Possible flags for register WPI_EEPROM_GP. */
220 #define WPI_EEPROM_VERSION	0x00000007
221 #define WPI_EEPROM_GP_IF_OWNER	0x00000180
222 
223 /* Possible flags for register WPI_APMG_PS. */
224 #define WPI_APMG_PS_PWR_SRC_MASK	(3 << 24)
225 
226 /* Possible flags for registers WPI_APMG_CLK_*. */
227 #define WPI_APMG_CLK_CTRL_DMA_CLK_RQT	(1 <<  9)
228 #define WPI_APMG_CLK_CTRL_BSM_CLK_RQT	(1 << 11)
229 
230 /* Possible flags for register WPI_APMG_PCI_STT. */
231 #define WPI_APMG_PCI_STT_L1A_DIS	(1 << 11)
232 
233 struct wpi_shared {
234 	uint32_t	txbase[WPI_NTXQUEUES];
235 	uint32_t	next;
236 	uint32_t	reserved[2];
237 } __packed;
238 
239 #define WPI_MAX_SEG_LEN	65520
240 struct wpi_tx_desc {
241 	uint8_t		reserved1[3];
242 	uint8_t		nsegs;
243 #define WPI_PAD32(x)	(roundup2(x, 4) - (x))
244 
245 	struct {
246 		uint32_t	addr;
247 		uint32_t	len;
248 	} __packed	segs[WPI_MAX_SCATTER];
249 	uint8_t		reserved2[28];
250 } __packed;
251 
252 struct wpi_tx_stat {
253 	uint8_t		rtsfailcnt;
254 	uint8_t		ackfailcnt;
255 	uint8_t		btkillcnt;
256 	uint8_t		rate;
257 	uint32_t	duration;
258 	uint32_t	status;
259 #define WPI_TX_STATUS_SUCCESS			0x01
260 #define WPI_TX_STATUS_DIRECT_DONE		0x02
261 #define WPI_TX_STATUS_FAIL			0x80
262 #define WPI_TX_STATUS_FAIL_SHORT_LIMIT		0x82
263 #define WPI_TX_STATUS_FAIL_LONG_LIMIT		0x83
264 #define WPI_TX_STATUS_FAIL_FIFO_UNDERRUN	0x84
265 #define WPI_TX_STATUS_FAIL_MGMNT_ABORT		0x85
266 #define WPI_TX_STATUS_FAIL_NEXT_FRAG		0x86
267 #define WPI_TX_STATUS_FAIL_LIFE_EXPIRE		0x87
268 #define WPI_TX_STATUS_FAIL_NODE_PS		0x88
269 #define WPI_TX_STATUS_FAIL_ABORTED		0x89
270 #define WPI_TX_STATUS_FAIL_BT_RETRY		0x8a
271 #define WPI_TX_STATUS_FAIL_NODE_INVALID		0x8b
272 #define WPI_TX_STATUS_FAIL_FRAG_DROPPED		0x8c
273 #define WPI_TX_STATUS_FAIL_TID_DISABLE		0x8d
274 #define WPI_TX_STATUS_FAIL_FRAME_FLUSHED	0x8e
275 #define WPI_TX_STATUS_FAIL_INSUFFICIENT_CF_POLL	0x8f
276 #define WPI_TX_STATUS_FAIL_TX_LOCKED		0x90
277 #define WPI_TX_STATUS_FAIL_NO_BEACON_ON_RADAR	0x91
278 
279 } __packed;
280 
281 struct wpi_rx_desc {
282 	uint32_t	len;
283 	uint8_t		type;
284 #define WPI_UC_READY		  1
285 #define WPI_RX_DONE		 27
286 #define WPI_TX_DONE		 28
287 #define WPI_START_SCAN		130
288 #define WPI_SCAN_RESULTS	131
289 #define WPI_STOP_SCAN		132
290 #define WPI_BEACON_SENT		144
291 #define WPI_RX_STATISTICS	156
292 #define WPI_BEACON_STATISTICS	157
293 #define WPI_STATE_CHANGED	161
294 #define WPI_BEACON_MISSED	162
295 
296 	uint8_t		flags;
297 	uint8_t		idx;
298 	uint8_t		qid;
299 } __packed;
300 
301 #define WPI_RX_DESC_QID_MSK		0x07
302 #define WPI_UNSOLICITED_RX_NOTIF	0x80
303 
304 struct wpi_rx_stat {
305 	uint8_t		len;
306 #define WPI_STAT_MAXLEN	20
307 
308 	uint8_t		id;
309 	uint8_t		rssi;	/* received signal strength */
310 #define WPI_RSSI_OFFSET	-95
311 
312 	uint8_t		agc;	/* access gain control */
313 	uint16_t	signal;
314 	uint16_t	noise;
315 } __packed;
316 
317 struct wpi_rx_head {
318 	uint16_t	chan;
319 	uint16_t	flags;
320 #define WPI_STAT_FLAG_SHPREAMBLE	(1 << 2)
321 
322 	uint8_t		reserved;
323 	uint8_t		plcp;
324 	uint16_t	len;
325 } __packed;
326 
327 struct wpi_rx_tail {
328 	uint32_t	flags;
329 #define WPI_RX_NO_CRC_ERR	(1 << 0)
330 #define WPI_RX_NO_OVFL_ERR	(1 << 1)
331 /* shortcut for the above */
332 #define WPI_RX_NOERROR		(WPI_RX_NO_CRC_ERR | WPI_RX_NO_OVFL_ERR)
333 #define WPI_RX_CIPHER_MASK	(7 <<  8)
334 #define WPI_RX_CIPHER_CCMP	(2 <<  8)
335 #define WPI_RX_DECRYPT_MASK	(3 << 11)
336 #define WPI_RX_DECRYPT_OK	(3 << 11)
337 
338 	uint64_t	tstamp;
339 	uint32_t	tbeacon;
340 } __packed;
341 
342 struct wpi_tx_cmd {
343 	uint8_t	code;
344 #define WPI_CMD_RXON		 16
345 #define WPI_CMD_RXON_ASSOC	 17
346 #define WPI_CMD_EDCA_PARAMS	 19
347 #define WPI_CMD_TIMING		 20
348 #define WPI_CMD_ADD_NODE	 24
349 #define WPI_CMD_DEL_NODE	 25
350 #define WPI_CMD_TX_DATA		 28
351 #define WPI_CMD_MRR_SETUP	 71
352 #define WPI_CMD_SET_LED		 72
353 #define WPI_CMD_SET_POWER_MODE	119
354 #define WPI_CMD_SCAN		128
355 #define WPI_CMD_SCAN_ABORT	129
356 #define WPI_CMD_SET_BEACON	145
357 #define WPI_CMD_TXPOWER		151
358 #define WPI_CMD_BT_COEX		155
359 #define WPI_CMD_GET_STATISTICS	156
360 
361 	uint8_t	flags;
362 	uint8_t	idx;
363 	uint8_t	qid;
364 	uint8_t	data[124];
365 } __packed;
366 
367 /* Structure for command WPI_CMD_RXON. */
368 struct wpi_rxon {
369 	uint8_t		myaddr[IEEE80211_ADDR_LEN];
370 	uint16_t	reserved1;
371 	uint8_t		bssid[IEEE80211_ADDR_LEN];
372 	uint16_t	reserved2;
373 	uint8_t		wlap[IEEE80211_ADDR_LEN];
374 	uint16_t	reserved3;
375 	uint8_t		mode;
376 #define WPI_MODE_HOSTAP		1
377 #define WPI_MODE_STA		3
378 #define WPI_MODE_IBSS		4
379 #define WPI_MODE_MONITOR	6
380 
381 	uint8_t		air;
382 	uint16_t	reserved4;
383 	uint8_t		ofdm_mask;
384 	uint8_t		cck_mask;
385 	uint16_t	associd;
386 	uint32_t	flags;
387 #define WPI_RXON_24GHZ		(1 <<  0)
388 #define WPI_RXON_CCK		(1 <<  1)
389 #define WPI_RXON_AUTO		(1 <<  2)
390 #define WPI_RXON_SHSLOT		(1 <<  4)
391 #define WPI_RXON_SHPREAMBLE	(1 <<  5)
392 #define WPI_RXON_NODIVERSITY	(1 <<  7)
393 #define WPI_RXON_ANTENNA_A	(1 <<  8)
394 #define WPI_RXON_ANTENNA_B	(1 <<  9)
395 #define WPI_RXON_TSF		(1 << 15)
396 #define WPI_RXON_CTS_TO_SELF	(1 << 30)
397 
398 	uint32_t	filter;
399 #define WPI_FILTER_PROMISC	(1 << 0)
400 #define WPI_FILTER_CTL		(1 << 1)
401 #define WPI_FILTER_MULTICAST	(1 << 2)
402 #define WPI_FILTER_NODECRYPT	(1 << 3)
403 #define WPI_FILTER_BSS		(1 << 5)
404 #define WPI_FILTER_BEACON	(1 << 6)
405 #define WPI_FILTER_ASSOC	(1 << 7)    /* Accept associaton requests. */
406 
407 	uint8_t		chan;
408 	uint16_t	reserved5;
409 } __packed;
410 
411 /* Structure for command WPI_CMD_RXON_ASSOC. */
412 struct wpi_assoc {
413 	uint32_t	flags;
414 	uint32_t	filter;
415 	uint8_t		ofdm_mask;
416 	uint8_t		cck_mask;
417 	uint16_t	reserved;
418 } __packed;
419 
420 /* Structure for command WPI_CMD_EDCA_PARAMS. */
421 struct wpi_edca_params {
422 	uint32_t	flags;
423 #define WPI_EDCA_UPDATE	(1 << 0)
424 
425 	struct {
426 		uint16_t	cwmin;
427 		uint16_t	cwmax;
428 		uint8_t		aifsn;
429 		uint8_t		reserved;
430 		uint16_t	txoplimit;
431 	} __packed	ac[WME_NUM_AC];
432 } __packed;
433 
434 /* Structure for command WPI_CMD_TIMING. */
435 struct wpi_cmd_timing {
436 	uint64_t	tstamp;
437 	uint16_t	bintval;
438 	uint16_t	atim;
439 	uint32_t	binitval;
440 	uint16_t	lintval;
441 	uint16_t	reserved;
442 } __packed;
443 
444 /* Structure for command WPI_CMD_ADD_NODE. */
445 struct wpi_node_info {
446 	uint8_t		control;
447 #define WPI_NODE_UPDATE		(1 << 0)
448 
449 	uint8_t		reserved1[3];
450 	uint8_t		macaddr[IEEE80211_ADDR_LEN];
451 	uint16_t	reserved2;
452 	uint8_t		id;
453 #define WPI_ID_BSS		0
454 #define WPI_ID_IBSS_MIN		2
455 #define WPI_ID_IBSS_MAX		23
456 #define WPI_ID_BROADCAST	24
457 #define WPI_ID_UNDEFINED	(uint8_t)-1
458 
459 	uint8_t		flags;
460 #define WPI_FLAG_KEY_SET	(1 << 0)
461 
462 	uint16_t	reserved3;
463 	uint16_t	kflags;
464 #define WPI_KFLAG_CCMP		(1 <<  1)
465 #define WPI_KFLAG_KID(kid)	((kid) << 8)
466 #define WPI_KFLAG_MULTICAST	(1 << 14)
467 
468 	uint8_t		tsc2;
469 	uint8_t		reserved4;
470 	uint16_t	ttak[5];
471 	uint16_t	reserved5;
472 	uint8_t		key[IEEE80211_KEYBUF_SIZE];
473 	uint32_t	action;
474 #define WPI_ACTION_SET_RATE	(1 << 2)
475 
476 	uint32_t	mask;
477 	uint16_t	tid;
478 	uint8_t		plcp;
479 	uint8_t		antenna;
480 #define WPI_ANTENNA_A		(1 << 6)
481 #define WPI_ANTENNA_B		(1 << 7)
482 #define WPI_ANTENNA_BOTH	(WPI_ANTENNA_A | WPI_ANTENNA_B)
483 
484 	uint8_t		add_imm;
485 	uint8_t		del_imm;
486 	uint16_t	add_imm_start;
487 } __packed;
488 
489 /* Structure for command WPI_CMD_DEL_NODE. */
490 struct wpi_cmd_del_node {
491 	uint8_t		count;
492 	uint8_t		reserved1[3];
493 	uint8_t		macaddr[IEEE80211_ADDR_LEN];
494 	uint16_t	reserved2;
495 } __packed;
496 
497 /* Structure for command WPI_CMD_TX_DATA. */
498 struct wpi_cmd_data {
499 	uint16_t	len;
500 	uint16_t	lnext;
501 	uint32_t	flags;
502 #define WPI_TX_NEED_RTS		(1 <<  1)
503 #define WPI_TX_NEED_CTS		(1 <<  2)
504 #define WPI_TX_NEED_ACK		(1 <<  3)
505 #define WPI_TX_FULL_TXOP	(1 <<  7)
506 #define WPI_TX_BT_DISABLE	(1 << 12) 	/* bluetooth coexistence */
507 #define WPI_TX_AUTO_SEQ		(1 << 13)
508 #define WPI_TX_MORE_FRAG	(1 << 14)
509 #define WPI_TX_INSERT_TSTAMP	(1 << 16)
510 
511 	uint8_t		plcp;
512 	uint8_t		id;
513 	uint8_t		tid;
514 	uint8_t		security;
515 #define WPI_CIPHER_WEP		1
516 #define WPI_CIPHER_CCMP		2
517 #define WPI_CIPHER_TKIP		3
518 #define WPI_CIPHER_WEP104	9
519 
520 	uint8_t		key[IEEE80211_KEYBUF_SIZE];
521 	uint8_t		tkip[IEEE80211_WEP_MICLEN];
522 	uint32_t	fnext;
523 #define WPI_NEXT_STA_ID(id)	((id) << 8)
524 
525 	uint32_t	lifetime;
526 #define WPI_LIFETIME_INFINITE	0xffffffff
527 
528 	uint8_t		ofdm_mask;
529 	uint8_t		cck_mask;
530 	uint8_t		rts_ntries;
531 	uint8_t		data_ntries;
532 	uint16_t	timeout;
533 	uint16_t	txop;
534 } __packed;
535 
536 /* Structure for command WPI_CMD_SET_BEACON. */
537 struct wpi_cmd_beacon {
538 	uint16_t	len;
539 	uint16_t	reserved1;
540 	uint32_t	flags;	/* same as wpi_cmd_data */
541 	uint8_t		plcp;
542 	uint8_t		id;
543 	uint8_t		reserved2[30];
544 	uint32_t	lifetime;
545 	uint8_t		ofdm_mask;
546 	uint8_t		cck_mask;
547 	uint16_t	reserved3[3];
548 	uint16_t	tim;
549 	uint8_t		timsz;
550 	uint8_t		reserved4;
551 } __packed;
552 
553 /* Structure for notification WPI_BEACON_MISSED. */
554 struct wpi_beacon_missed {
555 	uint32_t consecutive;
556 	uint32_t total;
557 	uint32_t expected;
558 	uint32_t received;
559 } __packed;
560 
561 
562 /* Structure for command WPI_CMD_MRR_SETUP. */
563 #define WPI_RIDX_MAX	11
564 struct wpi_mrr_setup {
565 	uint32_t	which;
566 #define WPI_MRR_CTL	0
567 #define WPI_MRR_DATA	1
568 
569 	struct {
570 		uint8_t	plcp;
571 		uint8_t	flags;
572 		uint8_t	ntries;
573 #define		WPI_NTRIES_DEFAULT	2
574 
575 		uint8_t	next;
576 	} __packed	rates[WPI_RIDX_MAX + 1];
577 } __packed;
578 
579 /* Structure for command WPI_CMD_SET_LED. */
580 struct wpi_cmd_led {
581 	uint32_t	unit;	/* multiplier (in usecs) */
582 	uint8_t		which;
583 #define WPI_LED_ACTIVITY	1
584 #define WPI_LED_LINK		2
585 
586 	uint8_t		off;
587 	uint8_t		on;
588 	uint8_t		reserved;
589 } __packed;
590 
591 /* Structure for command WPI_CMD_SET_POWER_MODE. */
592 struct wpi_pmgt_cmd {
593 	uint16_t	flags;
594 #define WPI_PS_ALLOW_SLEEP	(1 << 0)
595 #define WPI_PS_NOTIFY		(1 << 1)
596 #define WPI_PS_SLEEP_OVER_DTIM	(1 << 2)
597 #define WPI_PS_PCI_PMGT		(1 << 3)
598 
599 	uint8_t		reserved[2];
600 	uint32_t	rxtimeout;
601 	uint32_t	txtimeout;
602 	uint32_t	intval[5];
603 } __packed;
604 
605 /* Structures for command WPI_CMD_SCAN. */
606 #define WPI_SCAN_MAX_ESSIDS	4
607 struct wpi_scan_essid {
608 	uint8_t	id;
609 	uint8_t	len;
610 	uint8_t	data[IEEE80211_NWID_LEN];
611 } __packed;
612 
613 struct wpi_scan_hdr {
614 	uint16_t	len;
615 	uint8_t		reserved1;
616 	uint8_t		nchan;
617 	uint16_t	quiet_time;	/* timeout in milliseconds */
618 #define WPI_QUIET_TIME_DEFAULT		10
619 
620 	uint16_t	quiet_threshold; /* min # of packets */
621 	uint16_t	crc_threshold;
622 	uint16_t	reserved2;
623 	uint32_t	max_svc;	/* background scans */
624 	uint32_t	pause_svc;	/* background scans */
625 #define WPI_PAUSE_MAX_TIME		((1 << 20) - 1)
626 #define WPI_PAUSE_SCAN(nbeacons, time)	((nbeacons << 24) | time)
627 
628 	uint32_t	flags;
629 	uint32_t	filter;
630 
631 	/* Followed by a struct wpi_cmd_data. */
632 	/* Followed by an array of 4 structs wpi_scan_essid. */
633 	/* Followed by probe request body. */
634 	/* Followed by an array of ``nchan'' structs wpi_scan_chan. */
635 } __packed;
636 
637 struct wpi_scan_chan {
638 	uint8_t		flags;
639 #define WPI_CHAN_ACTIVE		(1 << 0)
640 #define WPI_CHAN_NPBREQS(x)	(((1 << (x)) - 1) << 1)
641 
642 	uint8_t		chan;
643 	uint8_t		rf_gain;
644 	uint8_t		dsp_gain;
645 	uint16_t	active;		/* msecs */
646 	uint16_t	passive;	/* msecs */
647 } __packed;
648 
649 #define WPI_SCAN_CRC_TH_DEFAULT		htole16(1)
650 #define WPI_SCAN_CRC_TH_NEVER		htole16(0xffff)
651 
652 /* Maximum size of a scan command. */
653 #define WPI_SCAN_MAXSZ	(MCLBYTES - 4)
654 
655 #define WPI_ACTIVE_DWELL_TIME_2GHZ	(30)	/* all times in msec */
656 #define WPI_ACTIVE_DWELL_TIME_5GHZ	(20)
657 #define WPI_ACTIVE_DWELL_FACTOR_2GHZ	( 3)
658 #define WPI_ACTIVE_DWELL_FACTOR_5GHZ	( 2)
659 
660 #define WPI_PASSIVE_DWELL_TIME_2GHZ	( 20)
661 #define WPI_PASSIVE_DWELL_TIME_5GHZ	( 10)
662 #define WPI_PASSIVE_DWELL_BASE		(100)
663 #define WPI_CHANNEL_TUNE_TIME		(  6)
664 
665 /* Structure for command WPI_CMD_TXPOWER. */
666 struct wpi_cmd_txpower {
667 	uint8_t		band;
668 #define WPI_BAND_5GHZ	0
669 #define WPI_BAND_2GHZ	1
670 
671 	uint8_t		reserved;
672 	uint16_t	chan;
673 
674 	struct {
675 		uint8_t	plcp;
676 		uint8_t	rf_gain;
677 		uint8_t	dsp_gain;
678 		uint8_t	reserved;
679 	} __packed	rates[WPI_RIDX_MAX + 1];
680 
681 } __packed;
682 
683 /* Structure for command WPI_CMD_BT_COEX. */
684 struct wpi_bluetooth {
685 	uint8_t		flags;
686 #define WPI_BT_COEX_DISABLE	0
687 #define WPI_BT_COEX_MODE_2WIRE	1
688 #define WPI_BT_COEX_MODE_3WIRE	2
689 #define WPI_BT_COEX_MODE_4WIRE	3
690 
691 	uint8_t		lead_time;
692 #define WPI_BT_LEAD_TIME_DEF	30
693 
694 	uint8_t		max_kill;
695 #define WPI_BT_MAX_KILL_DEF	5
696 
697 	uint8_t		reserved;
698 	uint32_t	kill_ack;
699 	uint32_t	kill_cts;
700 } __packed;
701 
702 /* Structure for WPI_UC_READY notification. */
703 struct wpi_ucode_info {
704 	uint8_t		minor;
705 	uint8_t		major;
706 	uint16_t	reserved1;
707 	uint8_t		revision[8];
708 	uint8_t		type;
709 	uint8_t		subtype;
710 	uint16_t	reserved2;
711 	uint32_t	logptr;
712 	uint32_t	errptr;
713 	uint32_t	tstamp;
714 	uint32_t	valid;
715 } __packed;
716 
717 /* Structure for WPI_START_SCAN notification. */
718 struct wpi_start_scan {
719 	uint64_t	tstamp;
720 	uint32_t	tbeacon;
721 	uint8_t		chan;
722 	uint8_t		band;
723 	uint16_t	reserved;
724 	uint32_t	status;
725 } __packed;
726 
727 /* Structure for WPI_STOP_SCAN notification. */
728 struct wpi_stop_scan {
729 	uint8_t		nchan;
730 	uint8_t		status;
731 #define WPI_SCAN_COMPLETED	1
732 #define WPI_SCAN_ABORTED	2
733 
734 	uint8_t		reserved;
735 	uint8_t		chan;
736 	uint64_t	tsf;
737 } __packed;
738 
739 /* Structures for WPI_{RX,BEACON}_STATISTICS notification. */
740 struct wpi_rx_phy_stats {
741 	uint32_t	ina;
742 	uint32_t	fina;
743 	uint32_t	bad_plcp;
744 	uint32_t	bad_crc32;
745 	uint32_t	overrun;
746 	uint32_t	eoverrun;
747 	uint32_t	good_crc32;
748 	uint32_t	fa;
749 	uint32_t	bad_fina_sync;
750 	uint32_t	sfd_timeout;
751 	uint32_t	fina_timeout;
752 	uint32_t	no_rts_ack;
753 	uint32_t	rxe_limit;
754 	uint32_t	ack;
755 	uint32_t	cts;
756 } __packed;
757 
758 struct wpi_rx_general_stats {
759 	uint32_t	bad_cts;
760 	uint32_t	bad_ack;
761 	uint32_t	not_bss;
762 	uint32_t	filtered;
763 	uint32_t	bad_chan;
764 } __packed;
765 
766 struct wpi_rx_stats {
767 	struct wpi_rx_phy_stats		ofdm;
768 	struct wpi_rx_phy_stats		cck;
769 	struct wpi_rx_general_stats	general;
770 } __packed;
771 
772 struct wpi_tx_stats {
773 	uint32_t	preamble;
774 	uint32_t	rx_detected;
775 	uint32_t	bt_defer;
776 	uint32_t	bt_kill;
777 	uint32_t	short_len;
778 	uint32_t	cts_timeout;
779 	uint32_t	ack_timeout;
780 	uint32_t	exp_ack;
781 	uint32_t	ack;
782 } __packed;
783 
784 struct wpi_general_stats {
785 	uint32_t	temp;
786 	uint32_t	burst_check;
787 	uint32_t	burst;
788 	uint32_t	reserved[4];
789 	uint32_t	sleep;
790 	uint32_t	slot_out;
791 	uint32_t	slot_idle;
792 	uint32_t	ttl_tstamp;
793 	uint32_t	tx_ant_a;
794 	uint32_t	tx_ant_b;
795 	uint32_t	exec;
796 	uint32_t	probe;
797 } __packed;
798 
799 struct wpi_stats {
800 	uint32_t			flags;
801 	struct wpi_rx_stats		rx;
802 	struct wpi_tx_stats		tx;
803 	struct wpi_general_stats	general;
804 } __packed;
805 
806 /* Possible flags for command WPI_CMD_GET_STATISTICS. */
807 #define WPI_STATISTICS_BEACON_DISABLE	(1 << 1)
808 
809 
810 /* Firmware error dump entry. */
811 struct wpi_fw_dump {
812 	uint32_t	desc;
813 	uint32_t	time;
814 	uint32_t	blink[2];
815 	uint32_t	ilink[2];
816 	uint32_t	data;
817 } __packed;
818 
819 /* Firmware image file header. */
820 struct wpi_firmware_hdr {
821 
822 #define WPI_FW_MINVERSION 2144
823 #define WPI_FW_NAME "wpifw"
824 
825 	uint16_t	driver;
826 	uint8_t		minor;
827 	uint8_t		major;
828 	uint32_t	rtextsz;
829 	uint32_t	rdatasz;
830 	uint32_t	itextsz;
831 	uint32_t	idatasz;
832 	uint32_t	btextsz;
833 } __packed;
834 
835 #define WPI_FW_TEXT_MAXSZ	 ( 80 * 1024 )
836 #define WPI_FW_DATA_MAXSZ	 ( 32 * 1024 )
837 #define WPI_FW_BOOT_TEXT_MAXSZ		1024
838 
839 #define WPI_FW_UPDATED	(1U << 31 )
840 
841 /*
842  * Offsets into EEPROM.
843  */
844 #define WPI_EEPROM_MAC		0x015
845 #define WPI_EEPROM_REVISION	0x035
846 #define WPI_EEPROM_SKU_CAP	0x045
847 #define WPI_EEPROM_TYPE		0x04a
848 #define WPI_EEPROM_DOMAIN	0x060
849 #define WPI_EEPROM_BAND1	0x063
850 #define WPI_EEPROM_BAND2	0x072
851 #define WPI_EEPROM_BAND3	0x080
852 #define WPI_EEPROM_BAND4	0x08d
853 #define WPI_EEPROM_BAND5	0x099
854 #define WPI_EEPROM_POWER_GRP	0x100
855 
856 struct wpi_eeprom_chan {
857 	uint8_t	flags;
858 #define WPI_EEPROM_CHAN_VALID	(1 << 0)
859 #define	WPI_EEPROM_CHAN_IBSS	(1 << 1)
860 #define WPI_EEPROM_CHAN_ACTIVE	(1 << 3)
861 #define WPI_EEPROM_CHAN_RADAR	(1 << 4)
862 
863 	int8_t	maxpwr;
864 } __packed;
865 
866 struct wpi_eeprom_sample {
867 	uint8_t		index;
868 	int8_t		power;
869 	uint16_t	volt;
870 } __packed;
871 
872 #define WPI_POWER_GROUPS_COUNT	5
873 struct wpi_eeprom_group {
874 	struct		wpi_eeprom_sample samples[5];
875 	int32_t		coef[5];
876 	int32_t		corr[5];
877 	int8_t		maxpwr;
878 	uint8_t		chan;
879 	int16_t		temp;
880 } __packed;
881 
882 #define WPI_CHAN_BANDS_COUNT	 5
883 #define WPI_MAX_CHAN_PER_BAND	14
884 static const struct wpi_chan_band {
885 	uint32_t	addr;	/* offset in EEPROM */
886 	uint8_t		nchan;
887 	uint8_t		chan[WPI_MAX_CHAN_PER_BAND];
888 } wpi_bands[] = {
889 	/* 20MHz channels, 2GHz band. */
890 	{ WPI_EEPROM_BAND1, 14,
891 	    { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 } },
892 	/* 20MHz channels, 5GHz band. */
893 	{ WPI_EEPROM_BAND2, 13,
894 	    { 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 } },
895 	{ WPI_EEPROM_BAND3, 12,
896 	    { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 } },
897 	{ WPI_EEPROM_BAND4, 11,
898 	    { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 } },
899 	{ WPI_EEPROM_BAND5, 6,
900 	    { 145, 149, 153, 157, 161, 165 } }
901 };
902 
903 /* HW rate indices. */
904 #define WPI_RIDX_OFDM6	 0
905 #define WPI_RIDX_OFDM36	 5
906 #define WPI_RIDX_OFDM48	 6
907 #define WPI_RIDX_OFDM54	 7
908 #define WPI_RIDX_CCK1	 8
909 #define WPI_RIDX_CCK2	 9
910 #define WPI_RIDX_CCK11	11
911 
912 static const uint8_t wpi_ridx_to_plcp[] = {
913 	/* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
914 	/* R1-R4 (ral/ural is R4-R1) */
915 	0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
916 	/* CCK: device-dependent */
917 	10, 20, 55, 110
918 };
919 
920 #define WPI_MAX_PWR_INDEX	77
921 
922 /*
923  * RF Tx gain values from highest to lowest power (values obtained from
924  * the reference driver.)
925  */
926 static const uint8_t wpi_rf_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = {
927 	0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xbb, 0xbb, 0xbb,
928 	0xbb, 0xf3, 0xf3, 0xf3, 0xf3, 0xf3, 0xd3, 0xd3, 0xb3, 0xb3, 0xb3,
929 	0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x73, 0xeb, 0xeb, 0xeb,
930 	0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xab, 0xab, 0xab, 0x8b,
931 	0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xc3, 0xc3, 0xc3, 0xc3, 0xa3,
932 	0xa3, 0xa3, 0xa3, 0x83, 0x83, 0x83, 0x83, 0x63, 0x63, 0x63, 0x63,
933 	0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23, 0x03, 0x03, 0x03,
934 	0x03
935 };
936 
937 static const uint8_t wpi_rf_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = {
938 	0xfb, 0xfb, 0xfb, 0xdb, 0xdb, 0xbb, 0xbb, 0x9b, 0x9b, 0x7b, 0x7b,
939 	0x7b, 0x7b, 0x5b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x1b, 0x1b,
940 	0x1b, 0x73, 0x73, 0x73, 0x53, 0x53, 0x53, 0x53, 0x53, 0x33, 0x33,
941 	0x33, 0x33, 0x13, 0x13, 0x13, 0x13, 0x13, 0xab, 0xab, 0xab, 0x8b,
942 	0x8b, 0x8b, 0x8b, 0x6b, 0x6b, 0x6b, 0x6b, 0x4b, 0x4b, 0x4b, 0x4b,
943 	0x2b, 0x2b, 0x2b, 0x2b, 0x0b, 0x0b, 0x0b, 0x0b, 0x83, 0x83, 0x63,
944 	0x63, 0x63, 0x63, 0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23,
945 	0x03
946 };
947 
948 /*
949  * DSP pre-DAC gain values from highest to lowest power (values obtained
950  * from the reference driver.)
951  */
952 static const uint8_t wpi_dsp_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = {
953 	0x7f, 0x7f, 0x7f, 0x7f, 0x7d, 0x6e, 0x69, 0x62, 0x7d, 0x73, 0x6c,
954 	0x63, 0x77, 0x6f, 0x69, 0x61, 0x5c, 0x6a, 0x64, 0x78, 0x71, 0x6b,
955 	0x7d, 0x77, 0x70, 0x6a, 0x65, 0x61, 0x5b, 0x6b, 0x79, 0x73, 0x6d,
956 	0x7f, 0x79, 0x73, 0x6c, 0x66, 0x60, 0x5c, 0x6e, 0x68, 0x62, 0x74,
957 	0x7d, 0x77, 0x71, 0x6b, 0x65, 0x60, 0x71, 0x6a, 0x66, 0x5f, 0x71,
958 	0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f,
959 	0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66,
960 	0x5f
961 };
962 
963 static const uint8_t wpi_dsp_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = {
964 	0x7f, 0x78, 0x72, 0x77, 0x65, 0x71, 0x66, 0x72, 0x67, 0x75, 0x6b,
965 	0x63, 0x5c, 0x6c, 0x7d, 0x76, 0x6d, 0x66, 0x60, 0x5a, 0x68, 0x62,
966 	0x5c, 0x76, 0x6f, 0x68, 0x7e, 0x79, 0x71, 0x69, 0x63, 0x76, 0x6f,
967 	0x68, 0x62, 0x74, 0x6d, 0x66, 0x62, 0x5d, 0x71, 0x6b, 0x63, 0x78,
968 	0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63,
969 	0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x6b, 0x63, 0x78,
970 	0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63,
971 	0x78
972 };
973 
974 /*
975  * Power saving settings (values obtained from the reference driver.)
976  */
977 #define WPI_NDTIMRANGES		2
978 #define WPI_NPOWERLEVELS	6
979 static const struct wpi_pmgt {
980 	uint32_t	rxtimeout;
981 	uint32_t	txtimeout;
982 	uint32_t	intval[5];
983 	uint8_t		skip_dtim;
984 } wpi_pmgt[WPI_NDTIMRANGES][WPI_NPOWERLEVELS] = {
985 	/* DTIM <= 10 */
986 	{
987 	{   0,   0, {  0,  0,  0,  0,  0 }, 0 },	/* CAM */
988 	{ 200, 500, {  1,  2,  3,  4,  4 }, 0 },	/* PS level 1 */
989 	{ 200, 300, {  2,  4,  6,  7,  7 }, 0 },	/* PS level 2 */
990 	{  50, 100, {  2,  6,  9,  9, 10 }, 0 },	/* PS level 3 */
991 	{  50,  25, {  2,  7,  9,  9, 10 }, 1 },	/* PS level 4 */
992 	{  25,  25, {  4,  7, 10, 10, 10 }, 1 }		/* PS level 5 */
993 	},
994 	/* DTIM >= 11 */
995 	{
996 	{   0,   0, {  0,  0,  0,  0,  0 }, 0 },	/* CAM */
997 	{ 200, 500, {  1,  2,  3,  4, -1 }, 0 },	/* PS level 1 */
998 	{ 200, 300, {  2,  4,  6,  7, -1 }, 0 },	/* PS level 2 */
999 	{  50, 100, {  2,  6,  9,  9, -1 }, 0 },	/* PS level 3 */
1000 	{  50,  25, {  2,  7,  9,  9, -1 }, 0 },	/* PS level 4 */
1001 	{  25,  25, {  4,  7, 10, 10, -1 }, 0 }		/* PS level 5 */
1002 	}
1003 };
1004 
1005 /* Firmware errors. */
1006 static const char * const wpi_fw_errmsg[] = {
1007 	"OK",
1008 	"FAIL",
1009 	"BAD_PARAM",
1010 	"BAD_CHECKSUM",
1011 	"NMI_INTERRUPT",
1012 	"SYSASSERT",
1013 	"FATAL_ERROR"
1014 };
1015 
1016 #define WPI_READ(sc, reg)						\
1017 	bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg))
1018 
1019 #define WPI_WRITE(sc, reg, val)						\
1020 	bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val))
1021 
1022 #define WPI_WRITE_REGION_4(sc, offset, datap, count)			\
1023 	bus_space_write_region_4((sc)->sc_st, (sc)->sc_sh, (offset),	\
1024 	    (datap), (count))
1025 
1026 #define WPI_SETBITS(sc, reg, mask)					\
1027 	WPI_WRITE(sc, reg, WPI_READ(sc, reg) | (mask))
1028 
1029 #define WPI_CLRBITS(sc, reg, mask)					\
1030 	WPI_WRITE(sc, reg, WPI_READ(sc, reg) & ~(mask))
1031 
1032 #define WPI_BARRIER_WRITE(sc)						\
1033 	bus_space_barrier((sc)->sc_st, (sc)->sc_sh, 0, (sc)->sc_sz,	\
1034 	    BUS_SPACE_BARRIER_WRITE)
1035 
1036 #define WPI_BARRIER_READ_WRITE(sc)					\
1037 	bus_space_barrier((sc)->sc_st, (sc)->sc_sh, 0, (sc)->sc_sz,	\
1038 	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE)
1039