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1/*
2 * Copyright (c) 2008-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <linux/export.h>
18#include "hw.h"
19#include "hw-ops.h"
20#include "ar9003_phy.h"
21#include "ar9003_mci.h"
22#include "ar9003_aic.h"
23
24static void ar9003_mci_reset_req_wakeup(struct ath_hw *ah)
25{
26 REG_RMW_FIELD(ah, AR_MCI_COMMAND2,
27 AR_MCI_COMMAND2_RESET_REQ_WAKEUP, 1);
28 udelay(1);
29 REG_RMW_FIELD(ah, AR_MCI_COMMAND2,
30 AR_MCI_COMMAND2_RESET_REQ_WAKEUP, 0);
31}
32
33static int ar9003_mci_wait_for_interrupt(struct ath_hw *ah, u32 address,
34 u32 bit_position, int time_out)
35{
36 struct ath_common *common = ath9k_hw_common(ah);
37
38 while (time_out) {
39 if (!(REG_READ(ah, address) & bit_position)) {
40 udelay(10);
41 time_out -= 10;
42
43 if (time_out < 0)
44 break;
45 else
46 continue;
47 }
48 REG_WRITE(ah, address, bit_position);
49
50 if (address != AR_MCI_INTERRUPT_RX_MSG_RAW)
51 break;
52
53 if (bit_position & AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE)
54 ar9003_mci_reset_req_wakeup(ah);
55
56 if (bit_position & (AR_MCI_INTERRUPT_RX_MSG_SYS_SLEEPING |
57 AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING))
58 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW,
59 AR_MCI_INTERRUPT_REMOTE_SLEEP_UPDATE);
60
61 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW, AR_MCI_INTERRUPT_RX_MSG);
62 break;
63 }
64
65 if (time_out <= 0) {
66 ath_dbg(common, MCI,
67 "MCI Wait for Reg 0x%08x = 0x%08x timeout\n",
68 address, bit_position);
69 ath_dbg(common, MCI,
70 "MCI INT_RAW = 0x%08x, RX_MSG_RAW = 0x%08x\n",
71 REG_READ(ah, AR_MCI_INTERRUPT_RAW),
72 REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW));
73 time_out = 0;
74 }
75
76 return time_out;
77}
78
79static void ar9003_mci_remote_reset(struct ath_hw *ah, bool wait_done)
80{
81 u32 payload[4] = { 0xffffffff, 0xffffffff, 0xffffffff, 0xffffff00};
82
83 ar9003_mci_send_message(ah, MCI_REMOTE_RESET, 0, payload, 16,
84 wait_done, false);
85 udelay(5);
86}
87
88static void ar9003_mci_send_lna_transfer(struct ath_hw *ah, bool wait_done)
89{
90 u32 payload = 0x00000000;
91
92 ar9003_mci_send_message(ah, MCI_LNA_TRANS, 0, &payload, 1,
93 wait_done, false);
94}
95
96static void ar9003_mci_send_req_wake(struct ath_hw *ah, bool wait_done)
97{
98 ar9003_mci_send_message(ah, MCI_REQ_WAKE, MCI_FLAG_DISABLE_TIMESTAMP,
99 NULL, 0, wait_done, false);
100 udelay(5);
101}
102
103static void ar9003_mci_send_sys_waking(struct ath_hw *ah, bool wait_done)
104{
105 ar9003_mci_send_message(ah, MCI_SYS_WAKING, MCI_FLAG_DISABLE_TIMESTAMP,
106 NULL, 0, wait_done, false);
107}
108
109static void ar9003_mci_send_lna_take(struct ath_hw *ah, bool wait_done)
110{
111 u32 payload = 0x70000000;
112
113 ar9003_mci_send_message(ah, MCI_LNA_TAKE, 0, &payload, 1,
114 wait_done, false);
115}
116
117static void ar9003_mci_send_sys_sleeping(struct ath_hw *ah, bool wait_done)
118{
119 ar9003_mci_send_message(ah, MCI_SYS_SLEEPING,
120 MCI_FLAG_DISABLE_TIMESTAMP,
121 NULL, 0, wait_done, false);
122}
123
124static void ar9003_mci_send_coex_version_query(struct ath_hw *ah,
125 bool wait_done)
126{
127 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
128 u32 payload[4] = {0, 0, 0, 0};
129
130 if (mci->bt_version_known ||
131 (mci->bt_state == MCI_BT_SLEEP))
132 return;
133
134 MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
135 MCI_GPM_COEX_VERSION_QUERY);
136 ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
137}
138
139static void ar9003_mci_send_coex_version_response(struct ath_hw *ah,
140 bool wait_done)
141{
142 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
143 u32 payload[4] = {0, 0, 0, 0};
144
145 MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
146 MCI_GPM_COEX_VERSION_RESPONSE);
147 *(((u8 *)payload) + MCI_GPM_COEX_B_MAJOR_VERSION) =
148 mci->wlan_ver_major;
149 *(((u8 *)payload) + MCI_GPM_COEX_B_MINOR_VERSION) =
150 mci->wlan_ver_minor;
151 ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
152}
153
154static void ar9003_mci_send_coex_wlan_channels(struct ath_hw *ah,
155 bool wait_done)
156{
157 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
158 u32 *payload = &mci->wlan_channels[0];
159
160 if (!mci->wlan_channels_update ||
161 (mci->bt_state == MCI_BT_SLEEP))
162 return;
163
164 MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
165 MCI_GPM_COEX_WLAN_CHANNELS);
166 ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
167 MCI_GPM_SET_TYPE_OPCODE(payload, 0xff, 0xff);
168}
169
170static void ar9003_mci_send_coex_bt_status_query(struct ath_hw *ah,
171 bool wait_done, u8 query_type)
172{
173 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
174 u32 payload[4] = {0, 0, 0, 0};
175 bool query_btinfo;
176
177 if (mci->bt_state == MCI_BT_SLEEP)
178 return;
179
180 query_btinfo = !!(query_type & (MCI_GPM_COEX_QUERY_BT_ALL_INFO |
181 MCI_GPM_COEX_QUERY_BT_TOPOLOGY));
182 MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
183 MCI_GPM_COEX_STATUS_QUERY);
184
185 *(((u8 *)payload) + MCI_GPM_COEX_B_BT_BITMAP) = query_type;
186
187 /*
188 * If bt_status_query message is not sent successfully,
189 * then need_flush_btinfo should be set again.
190 */
191 if (!ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16,
192 wait_done, true)) {
193 if (query_btinfo)
194 mci->need_flush_btinfo = true;
195 }
196
197 if (query_btinfo)
198 mci->query_bt = false;
199}
200
201static void ar9003_mci_send_coex_halt_bt_gpm(struct ath_hw *ah, bool halt,
202 bool wait_done)
203{
204 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
205 u32 payload[4] = {0, 0, 0, 0};
206
207 MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
208 MCI_GPM_COEX_HALT_BT_GPM);
209
210 if (halt) {
211 mci->query_bt = true;
212 /* Send next unhalt no matter halt sent or not */
213 mci->unhalt_bt_gpm = true;
214 mci->need_flush_btinfo = true;
215 *(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) =
216 MCI_GPM_COEX_BT_GPM_HALT;
217 } else
218 *(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) =
219 MCI_GPM_COEX_BT_GPM_UNHALT;
220
221 ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
222}
223
224static void ar9003_mci_prep_interface(struct ath_hw *ah)
225{
226 struct ath_common *common = ath9k_hw_common(ah);
227 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
228 u32 saved_mci_int_en;
229 u32 mci_timeout = 150;
230
231 mci->bt_state = MCI_BT_SLEEP;
232 saved_mci_int_en = REG_READ(ah, AR_MCI_INTERRUPT_EN);
233
234 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, 0);
235 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
236 REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW));
237 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW,
238 REG_READ(ah, AR_MCI_INTERRUPT_RAW));
239
240 ar9003_mci_remote_reset(ah, true);
241 ar9003_mci_send_req_wake(ah, true);
242
243 if (!ar9003_mci_wait_for_interrupt(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
244 AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING, 500))
245 goto clear_redunt;
246
247 mci->bt_state = MCI_BT_AWAKE;
248
249 /*
250 * we don't need to send more remote_reset at this moment.
251 * If BT receive first remote_reset, then BT HW will
252 * be cleaned up and will be able to receive req_wake
253 * and BT HW will respond sys_waking.
254 * In this case, WLAN will receive BT's HW sys_waking.
255 * Otherwise, if BT SW missed initial remote_reset,
256 * that remote_reset will still clean up BT MCI RX,
257 * and the req_wake will wake BT up,
258 * and BT SW will respond this req_wake with a remote_reset and
259 * sys_waking. In this case, WLAN will receive BT's SW
260 * sys_waking. In either case, BT's RX is cleaned up. So we
261 * don't need to reply BT's remote_reset now, if any.
262 * Similarly, if in any case, WLAN can receive BT's sys_waking,
263 * that means WLAN's RX is also fine.
264 */
265 ar9003_mci_send_sys_waking(ah, true);
266 udelay(10);
267
268 /*
269 * Set BT priority interrupt value to be 0xff to
270 * avoid having too many BT PRIORITY interrupts.
271 */
272 REG_WRITE(ah, AR_MCI_BT_PRI0, 0xFFFFFFFF);
273 REG_WRITE(ah, AR_MCI_BT_PRI1, 0xFFFFFFFF);
274 REG_WRITE(ah, AR_MCI_BT_PRI2, 0xFFFFFFFF);
275 REG_WRITE(ah, AR_MCI_BT_PRI3, 0xFFFFFFFF);
276 REG_WRITE(ah, AR_MCI_BT_PRI, 0X000000FF);
277
278 /*
279 * A contention reset will be received after send out
280 * sys_waking. Also BT priority interrupt bits will be set.
281 * Clear those bits before the next step.
282 */
283
284 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
285 AR_MCI_INTERRUPT_RX_MSG_CONT_RST);
286 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW, AR_MCI_INTERRUPT_BT_PRI);
287
288 if (mci->is_2g && MCI_ANT_ARCH_PA_LNA_SHARED(mci)) {
289 ar9003_mci_send_lna_transfer(ah, true);
290 udelay(5);
291 }
292
293 if (mci->is_2g && !mci->update_2g5g && MCI_ANT_ARCH_PA_LNA_SHARED(mci)) {
294 if (ar9003_mci_wait_for_interrupt(ah,
295 AR_MCI_INTERRUPT_RX_MSG_RAW,
296 AR_MCI_INTERRUPT_RX_MSG_LNA_INFO,
297 mci_timeout))
298 ath_dbg(common, MCI,
299 "MCI WLAN has control over the LNA & BT obeys it\n");
300 else
301 ath_dbg(common, MCI,
302 "MCI BT didn't respond to LNA_TRANS\n");
303 }
304
305clear_redunt:
306 /* Clear the extra redundant SYS_WAKING from BT */
307 if ((mci->bt_state == MCI_BT_AWAKE) &&
308 (REG_READ_FIELD(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
309 AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING)) &&
310 (REG_READ_FIELD(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
311 AR_MCI_INTERRUPT_RX_MSG_SYS_SLEEPING) == 0)) {
312 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
313 AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING);
314 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW,
315 AR_MCI_INTERRUPT_REMOTE_SLEEP_UPDATE);
316 }
317
318 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, saved_mci_int_en);
319}
320
321void ar9003_mci_set_full_sleep(struct ath_hw *ah)
322{
323 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
324
325 if (ar9003_mci_state(ah, MCI_STATE_ENABLE) &&
326 (mci->bt_state != MCI_BT_SLEEP) &&
327 !mci->halted_bt_gpm) {
328 ar9003_mci_send_coex_halt_bt_gpm(ah, true, true);
329 }
330
331 mci->ready = false;
332}
333
334static void ar9003_mci_disable_interrupt(struct ath_hw *ah)
335{
336 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, 0);
337 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
338}
339
340static void ar9003_mci_enable_interrupt(struct ath_hw *ah)
341{
342 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, AR_MCI_INTERRUPT_DEFAULT);
343 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
344 AR_MCI_INTERRUPT_RX_MSG_DEFAULT);
345}
346
347static bool ar9003_mci_check_int(struct ath_hw *ah, u32 ints)
348{
349 u32 intr;
350
351 intr = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW);
352 return ((intr & ints) == ints);
353}
354
355void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
356 u32 *rx_msg_intr)
357{
358 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
359
360 *raw_intr = mci->raw_intr;
361 *rx_msg_intr = mci->rx_msg_intr;
362
363 /* Clean int bits after the values are read. */
364 mci->raw_intr = 0;
365 mci->rx_msg_intr = 0;
366}
367EXPORT_SYMBOL(ar9003_mci_get_interrupt);
368
369void ar9003_mci_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
370{
371 struct ath_common *common = ath9k_hw_common(ah);
372 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
373 u32 raw_intr, rx_msg_intr;
374
375 rx_msg_intr = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW);
376 raw_intr = REG_READ(ah, AR_MCI_INTERRUPT_RAW);
377
378 if ((raw_intr == 0xdeadbeef) || (rx_msg_intr == 0xdeadbeef)) {
379 ath_dbg(common, MCI,
380 "MCI gets 0xdeadbeef during int processing\n");
381 } else {
382 mci->rx_msg_intr |= rx_msg_intr;
383 mci->raw_intr |= raw_intr;
384 *masked |= ATH9K_INT_MCI;
385
386 if (rx_msg_intr & AR_MCI_INTERRUPT_RX_MSG_CONT_INFO)
387 mci->cont_status = REG_READ(ah, AR_MCI_CONT_STATUS);
388
389 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW, rx_msg_intr);
390 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW, raw_intr);
391 }
392}
393
394static void ar9003_mci_2g5g_changed(struct ath_hw *ah, bool is_2g)
395{
396 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
397
398 if (!mci->update_2g5g &&
399 (mci->is_2g != is_2g))
400 mci->update_2g5g = true;
401
402 mci->is_2g = is_2g;
403}
404
405static bool ar9003_mci_is_gpm_valid(struct ath_hw *ah, u32 msg_index)
406{
407 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
408 u32 *payload;
409 u32 recv_type, offset;
410
411 if (msg_index == MCI_GPM_INVALID)
412 return false;
413
414 offset = msg_index << 4;
415
416 payload = (u32 *)(mci->gpm_buf + offset);
417 recv_type = MCI_GPM_TYPE(payload);
418
419 if (recv_type == MCI_GPM_RSVD_PATTERN)
420 return false;
421
422 return true;
423}
424
425static void ar9003_mci_observation_set_up(struct ath_hw *ah)
426{
427 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
428
429 if (mci->config & ATH_MCI_CONFIG_MCI_OBS_MCI) {
430 ath9k_hw_gpio_request_out(ah, 3, NULL,
431 AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_DATA);
432 ath9k_hw_gpio_request_out(ah, 2, NULL,
433 AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_CLK);
434 ath9k_hw_gpio_request_out(ah, 1, NULL,
435 AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
436 ath9k_hw_gpio_request_out(ah, 0, NULL,
437 AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
438 } else if (mci->config & ATH_MCI_CONFIG_MCI_OBS_TXRX) {
439 ath9k_hw_gpio_request_out(ah, 3, NULL,
440 AR_GPIO_OUTPUT_MUX_AS_WL_IN_TX);
441 ath9k_hw_gpio_request_out(ah, 2, NULL,
442 AR_GPIO_OUTPUT_MUX_AS_WL_IN_RX);
443 ath9k_hw_gpio_request_out(ah, 1, NULL,
444 AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
445 ath9k_hw_gpio_request_out(ah, 0, NULL,
446 AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
447 ath9k_hw_gpio_request_out(ah, 5, NULL,
448 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
449 } else if (mci->config & ATH_MCI_CONFIG_MCI_OBS_BT) {
450 ath9k_hw_gpio_request_out(ah, 3, NULL,
451 AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
452 ath9k_hw_gpio_request_out(ah, 2, NULL,
453 AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
454 ath9k_hw_gpio_request_out(ah, 1, NULL,
455 AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
456 ath9k_hw_gpio_request_out(ah, 0, NULL,
457 AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
458 } else
459 return;
460
461 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
462
463 REG_RMW_FIELD(ah, AR_PHY_GLB_CONTROL, AR_GLB_DS_JTAG_DISABLE, 1);
464 REG_RMW_FIELD(ah, AR_PHY_GLB_CONTROL, AR_GLB_WLAN_UART_INTF_EN, 0);
465 REG_SET_BIT(ah, AR_GLB_GPIO_CONTROL, ATH_MCI_CONFIG_MCI_OBS_GPIO);
466
467 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_GPIO_OBS_SEL, 0);
468 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_MAC_BB_OBS_SEL, 1);
469 REG_WRITE(ah, AR_OBS, 0x4b);
470 REG_RMW_FIELD(ah, AR_DIAG_SW, AR_DIAG_OBS_PT_SEL1, 0x03);
471 REG_RMW_FIELD(ah, AR_DIAG_SW, AR_DIAG_OBS_PT_SEL2, 0x01);
472 REG_RMW_FIELD(ah, AR_MACMISC, AR_MACMISC_MISC_OBS_BUS_LSB, 0x02);
473 REG_RMW_FIELD(ah, AR_MACMISC, AR_MACMISC_MISC_OBS_BUS_MSB, 0x03);
474 REG_RMW_FIELD(ah, AR_PHY_TEST_CTL_STATUS,
475 AR_PHY_TEST_CTL_DEBUGPORT_SEL, 0x07);
476}
477
478static bool ar9003_mci_send_coex_bt_flags(struct ath_hw *ah, bool wait_done,
479 u8 opcode, u32 bt_flags)
480{
481 u32 pld[4] = {0, 0, 0, 0};
482
483 MCI_GPM_SET_TYPE_OPCODE(pld, MCI_GPM_COEX_AGENT,
484 MCI_GPM_COEX_BT_UPDATE_FLAGS);
485
486 *(((u8 *)pld) + MCI_GPM_COEX_B_BT_FLAGS_OP) = opcode;
487 *(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 0) = bt_flags & 0xFF;
488 *(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 1) = (bt_flags >> 8) & 0xFF;
489 *(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 2) = (bt_flags >> 16) & 0xFF;
490 *(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 3) = (bt_flags >> 24) & 0xFF;
491
492 return ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16,
493 wait_done, true);
494}
495
496static void ar9003_mci_sync_bt_state(struct ath_hw *ah)
497{
498 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
499 u32 cur_bt_state;
500
501 cur_bt_state = ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP);
502
503 if (mci->bt_state != cur_bt_state)
504 mci->bt_state = cur_bt_state;
505
506 if (mci->bt_state != MCI_BT_SLEEP) {
507
508 ar9003_mci_send_coex_version_query(ah, true);
509 ar9003_mci_send_coex_wlan_channels(ah, true);
510
511 if (mci->unhalt_bt_gpm == true)
512 ar9003_mci_send_coex_halt_bt_gpm(ah, false, true);
513 }
514}
515
516void ar9003_mci_check_bt(struct ath_hw *ah)
517{
518 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
519
520 if (!mci_hw->ready)
521 return;
522
523 /*
524 * check BT state again to make
525 * sure it's not changed.
526 */
527 ar9003_mci_sync_bt_state(ah);
528 ar9003_mci_2g5g_switch(ah, true);
529
530 if ((mci_hw->bt_state == MCI_BT_AWAKE) &&
531 (mci_hw->query_bt == true)) {
532 mci_hw->need_flush_btinfo = true;
533 }
534}
535
536static void ar9003_mci_process_gpm_extra(struct ath_hw *ah, u8 gpm_type,
537 u8 gpm_opcode, u32 *p_gpm)
538{
539 struct ath_common *common = ath9k_hw_common(ah);
540 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
541 u8 *p_data = (u8 *) p_gpm;
542
543 if (gpm_type != MCI_GPM_COEX_AGENT)
544 return;
545
546 switch (gpm_opcode) {
547 case MCI_GPM_COEX_VERSION_QUERY:
548 ath_dbg(common, MCI, "MCI Recv GPM COEX Version Query\n");
549 ar9003_mci_send_coex_version_response(ah, true);
550 break;
551 case MCI_GPM_COEX_VERSION_RESPONSE:
552 ath_dbg(common, MCI, "MCI Recv GPM COEX Version Response\n");
553 mci->bt_ver_major =
554 *(p_data + MCI_GPM_COEX_B_MAJOR_VERSION);
555 mci->bt_ver_minor =
556 *(p_data + MCI_GPM_COEX_B_MINOR_VERSION);
557 mci->bt_version_known = true;
558 ath_dbg(common, MCI, "MCI BT Coex version: %d.%d\n",
559 mci->bt_ver_major, mci->bt_ver_minor);
560 break;
561 case MCI_GPM_COEX_STATUS_QUERY:
562 ath_dbg(common, MCI,
563 "MCI Recv GPM COEX Status Query = 0x%02X\n",
564 *(p_data + MCI_GPM_COEX_B_WLAN_BITMAP));
565 mci->wlan_channels_update = true;
566 ar9003_mci_send_coex_wlan_channels(ah, true);
567 break;
568 case MCI_GPM_COEX_BT_PROFILE_INFO:
569 mci->query_bt = true;
570 ath_dbg(common, MCI, "MCI Recv GPM COEX BT_Profile_Info\n");
571 break;
572 case MCI_GPM_COEX_BT_STATUS_UPDATE:
573 mci->query_bt = true;
574 ath_dbg(common, MCI,
575 "MCI Recv GPM COEX BT_Status_Update SEQ=%d (drop&query)\n",
576 *(p_gpm + 3));
577 break;
578 default:
579 break;
580 }
581}
582
583static u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type,
584 u8 gpm_opcode, int time_out)
585{
586 struct ath_common *common = ath9k_hw_common(ah);
587 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
588 u32 *p_gpm = NULL, mismatch = 0, more_data;
589 u32 offset;
590 u8 recv_type = 0, recv_opcode = 0;
591 bool b_is_bt_cal_done = (gpm_type == MCI_GPM_BT_CAL_DONE);
592
593 more_data = time_out ? MCI_GPM_NOMORE : MCI_GPM_MORE;
594
595 while (time_out > 0) {
596 if (p_gpm) {
597 MCI_GPM_RECYCLE(p_gpm);
598 p_gpm = NULL;
599 }
600
601 if (more_data != MCI_GPM_MORE)
602 time_out = ar9003_mci_wait_for_interrupt(ah,
603 AR_MCI_INTERRUPT_RX_MSG_RAW,
604 AR_MCI_INTERRUPT_RX_MSG_GPM,
605 time_out);
606
607 if (!time_out)
608 break;
609
610 offset = ar9003_mci_get_next_gpm_offset(ah, &more_data);
611
612 if (offset == MCI_GPM_INVALID)
613 continue;
614
615 p_gpm = (u32 *) (mci->gpm_buf + offset);
616 recv_type = MCI_GPM_TYPE(p_gpm);
617 recv_opcode = MCI_GPM_OPCODE(p_gpm);
618
619 if (MCI_GPM_IS_CAL_TYPE(recv_type)) {
620 if (recv_type == gpm_type) {
621 if ((gpm_type == MCI_GPM_BT_CAL_DONE) &&
622 !b_is_bt_cal_done) {
623 gpm_type = MCI_GPM_BT_CAL_GRANT;
624 continue;
625 }
626 break;
627 }
628 } else if ((recv_type == gpm_type) &&
629 (recv_opcode == gpm_opcode))
630 break;
631
632 /*
633 * check if it's cal_grant
634 *
635 * When we're waiting for cal_grant in reset routine,
636 * it's possible that BT sends out cal_request at the
637 * same time. Since BT's calibration doesn't happen
638 * that often, we'll let BT completes calibration then
639 * we continue to wait for cal_grant from BT.
640 * Orginal: Wait BT_CAL_GRANT.
641 * New: Receive BT_CAL_REQ -> send WLAN_CAL_GRANT->wait
642 * BT_CAL_DONE -> Wait BT_CAL_GRANT.
643 */
644
645 if ((gpm_type == MCI_GPM_BT_CAL_GRANT) &&
646 (recv_type == MCI_GPM_BT_CAL_REQ)) {
647
648 u32 payload[4] = {0, 0, 0, 0};
649
650 gpm_type = MCI_GPM_BT_CAL_DONE;
651 MCI_GPM_SET_CAL_TYPE(payload,
652 MCI_GPM_WLAN_CAL_GRANT);
653 ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16,
654 false, false);
655 continue;
656 } else {
657 ath_dbg(common, MCI, "MCI GPM subtype not match 0x%x\n",
658 *(p_gpm + 1));
659 mismatch++;
660 ar9003_mci_process_gpm_extra(ah, recv_type,
661 recv_opcode, p_gpm);
662 }
663 }
664
665 if (p_gpm) {
666 MCI_GPM_RECYCLE(p_gpm);
667 p_gpm = NULL;
668 }
669
670 if (time_out <= 0)
671 time_out = 0;
672
673 while (more_data == MCI_GPM_MORE) {
674 offset = ar9003_mci_get_next_gpm_offset(ah, &more_data);
675 if (offset == MCI_GPM_INVALID)
676 break;
677
678 p_gpm = (u32 *) (mci->gpm_buf + offset);
679 recv_type = MCI_GPM_TYPE(p_gpm);
680 recv_opcode = MCI_GPM_OPCODE(p_gpm);
681
682 if (!MCI_GPM_IS_CAL_TYPE(recv_type))
683 ar9003_mci_process_gpm_extra(ah, recv_type,
684 recv_opcode, p_gpm);
685
686 MCI_GPM_RECYCLE(p_gpm);
687 }
688
689 return time_out;
690}
691
692bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
693{
694 struct ath_common *common = ath9k_hw_common(ah);
695 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
696 u32 payload[4] = {0, 0, 0, 0};
697
698 ar9003_mci_2g5g_changed(ah, IS_CHAN_2GHZ(chan));
699
700 if (mci_hw->bt_state != MCI_BT_CAL_START)
701 return false;
702
703 mci_hw->bt_state = MCI_BT_CAL;
704
705 /*
706 * MCI FIX: disable mci interrupt here. This is to avoid
707 * SW_MSG_DONE or RX_MSG bits to trigger MCI_INT and
708 * lead to mci_intr reentry.
709 */
710 ar9003_mci_disable_interrupt(ah);
711
712 MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_GRANT);
713 ar9003_mci_send_message(ah, MCI_GPM, 0, payload,
714 16, true, false);
715
716 /* Wait BT calibration to be completed for 25ms */
717
718 if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_DONE,
719 0, 25000))
720 ath_dbg(common, MCI, "MCI BT_CAL_DONE received\n");
721 else
722 ath_dbg(common, MCI,
723 "MCI BT_CAL_DONE not received\n");
724
725 mci_hw->bt_state = MCI_BT_AWAKE;
726 /* MCI FIX: enable mci interrupt here */
727 ar9003_mci_enable_interrupt(ah);
728
729 return true;
730}
731
732int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
733 struct ath9k_hw_cal_data *caldata)
734{
735 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
736
737 if (!mci_hw->ready)
738 return 0;
739
740 if (!IS_CHAN_2GHZ(chan) || (mci_hw->bt_state != MCI_BT_SLEEP))
741 goto exit;
742
743 if (!ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET) &&
744 !ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE))
745 goto exit;
746
747 /*
748 * BT is sleeping. Check if BT wakes up during
749 * WLAN calibration. If BT wakes up during
750 * WLAN calibration, need to go through all
751 * message exchanges again and recal.
752 */
753 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
754 (AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET |
755 AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE));
756
757 ar9003_mci_remote_reset(ah, true);
758 ar9003_mci_send_sys_waking(ah, true);
759 udelay(1);
760
761 if (IS_CHAN_2GHZ(chan))
762 ar9003_mci_send_lna_transfer(ah, true);
763
764 mci_hw->bt_state = MCI_BT_AWAKE;
765
766 REG_CLR_BIT(ah, AR_PHY_TIMING4,
767 1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT);
768
769 if (caldata) {
770 clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
771 clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
772 clear_bit(RTT_DONE, &caldata->cal_flags);
773 }
774
775 if (!ath9k_hw_init_cal(ah, chan))
776 return -EIO;
777
778 REG_SET_BIT(ah, AR_PHY_TIMING4,
779 1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT);
780
781exit:
782 ar9003_mci_enable_interrupt(ah);
783 return 0;
784}
785
786static void ar9003_mci_mute_bt(struct ath_hw *ah)
787{
788 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
789
790 /* disable all MCI messages */
791 REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE, 0xffff0000);
792 REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS0, 0xffffffff);
793 REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS1, 0xffffffff);
794 REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS2, 0xffffffff);
795 REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS3, 0xffffffff);
796 REG_SET_BIT(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
797
798 /* wait pending HW messages to flush out */
799 udelay(10);
800
801 /*
802 * Send LNA_TAKE and SYS_SLEEPING when
803 * 1. reset not after resuming from full sleep
804 * 2. before reset MCI RX, to quiet BT and avoid MCI RX misalignment
805 */
806 if (MCI_ANT_ARCH_PA_LNA_SHARED(mci)) {
807 ar9003_mci_send_lna_take(ah, true);
808 udelay(5);
809 }
810
811 ar9003_mci_send_sys_sleeping(ah, true);
812}
813
814static void ar9003_mci_osla_setup(struct ath_hw *ah, bool enable)
815{
816 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
817 u32 thresh;
818
819 if (!enable) {
820 REG_CLR_BIT(ah, AR_BTCOEX_CTRL,
821 AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN);
822 return;
823 }
824 REG_RMW_FIELD(ah, AR_MCI_SCHD_TABLE_2, AR_MCI_SCHD_TABLE_2_HW_BASED, 1);
825 REG_RMW_FIELD(ah, AR_MCI_SCHD_TABLE_2,
826 AR_MCI_SCHD_TABLE_2_MEM_BASED, 1);
827
828 if (AR_SREV_9565(ah))
829 REG_RMW_FIELD(ah, AR_MCI_MISC, AR_MCI_MISC_HW_FIX_EN, 1);
830
831 if (!(mci->config & ATH_MCI_CONFIG_DISABLE_AGGR_THRESH)) {
832 thresh = MS(mci->config, ATH_MCI_CONFIG_AGGR_THRESH);
833 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
834 AR_BTCOEX_CTRL_AGGR_THRESH, thresh);
835 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
836 AR_BTCOEX_CTRL_TIME_TO_NEXT_BT_THRESH_EN, 1);
837 } else
838 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
839 AR_BTCOEX_CTRL_TIME_TO_NEXT_BT_THRESH_EN, 0);
840
841 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
842 AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN, 1);
843}
844
845static void ar9003_mci_stat_setup(struct ath_hw *ah)
846{
847 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
848
849 if (!AR_SREV_9565(ah))
850 return;
851
852 if (mci->config & ATH_MCI_CONFIG_MCI_STAT_DBG) {
853 REG_RMW_FIELD(ah, AR_MCI_DBG_CNT_CTRL,
854 AR_MCI_DBG_CNT_CTRL_ENABLE, 1);
855 REG_RMW_FIELD(ah, AR_MCI_DBG_CNT_CTRL,
856 AR_MCI_DBG_CNT_CTRL_BT_LINKID,
857 MCI_STAT_ALL_BT_LINKID);
858 } else {
859 REG_RMW_FIELD(ah, AR_MCI_DBG_CNT_CTRL,
860 AR_MCI_DBG_CNT_CTRL_ENABLE, 0);
861 }
862}
863
864static void ar9003_mci_set_btcoex_ctrl_9565_1ANT(struct ath_hw *ah)
865{
866 u32 regval;
867
868 regval = SM(1, AR_BTCOEX_CTRL_AR9462_MODE) |
869 SM(1, AR_BTCOEX_CTRL_WBTIMER_EN) |
870 SM(1, AR_BTCOEX_CTRL_PA_SHARED) |
871 SM(1, AR_BTCOEX_CTRL_LNA_SHARED) |
872 SM(1, AR_BTCOEX_CTRL_NUM_ANTENNAS) |
873 SM(1, AR_BTCOEX_CTRL_RX_CHAIN_MASK) |
874 SM(0, AR_BTCOEX_CTRL_1_CHAIN_ACK) |
875 SM(0, AR_BTCOEX_CTRL_1_CHAIN_BCN) |
876 SM(0, AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN);
877
878 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
879 AR_BTCOEX_CTRL2_TX_CHAIN_MASK, 0x1);
880 REG_WRITE(ah, AR_BTCOEX_CTRL, regval);
881}
882
883static void ar9003_mci_set_btcoex_ctrl_9565_2ANT(struct ath_hw *ah)
884{
885 u32 regval;
886
887 regval = SM(1, AR_BTCOEX_CTRL_AR9462_MODE) |
888 SM(1, AR_BTCOEX_CTRL_WBTIMER_EN) |
889 SM(0, AR_BTCOEX_CTRL_PA_SHARED) |
890 SM(0, AR_BTCOEX_CTRL_LNA_SHARED) |
891 SM(2, AR_BTCOEX_CTRL_NUM_ANTENNAS) |
892 SM(1, AR_BTCOEX_CTRL_RX_CHAIN_MASK) |
893 SM(0, AR_BTCOEX_CTRL_1_CHAIN_ACK) |
894 SM(0, AR_BTCOEX_CTRL_1_CHAIN_BCN) |
895 SM(0, AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN);
896
897 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
898 AR_BTCOEX_CTRL2_TX_CHAIN_MASK, 0x0);
899 REG_WRITE(ah, AR_BTCOEX_CTRL, regval);
900}
901
902static void ar9003_mci_set_btcoex_ctrl_9462(struct ath_hw *ah)
903{
904 u32 regval;
905
906 regval = SM(1, AR_BTCOEX_CTRL_AR9462_MODE) |
907 SM(1, AR_BTCOEX_CTRL_WBTIMER_EN) |
908 SM(1, AR_BTCOEX_CTRL_PA_SHARED) |
909 SM(1, AR_BTCOEX_CTRL_LNA_SHARED) |
910 SM(2, AR_BTCOEX_CTRL_NUM_ANTENNAS) |
911 SM(3, AR_BTCOEX_CTRL_RX_CHAIN_MASK) |
912 SM(0, AR_BTCOEX_CTRL_1_CHAIN_ACK) |
913 SM(0, AR_BTCOEX_CTRL_1_CHAIN_BCN) |
914 SM(0, AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN);
915
916 REG_WRITE(ah, AR_BTCOEX_CTRL, regval);
917}
918
919int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
920 bool is_full_sleep)
921{
922 struct ath_common *common = ath9k_hw_common(ah);
923 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
924 u32 regval, i;
925
926 ath_dbg(common, MCI, "MCI Reset (full_sleep = %d, is_2g = %d)\n",
927 is_full_sleep, is_2g);
928
929 if (REG_READ(ah, AR_BTCOEX_CTRL) == 0xdeadbeef) {
930 ath_err(common, "BTCOEX control register is dead\n");
931 return -EINVAL;
932 }
933
934 /* Program MCI DMA related registers */
935 REG_WRITE(ah, AR_MCI_GPM_0, mci->gpm_addr);
936 REG_WRITE(ah, AR_MCI_GPM_1, mci->gpm_len);
937 REG_WRITE(ah, AR_MCI_SCHD_TABLE_0, mci->sched_addr);
938
939 /*
940 * To avoid MCI state machine be affected by incoming remote MCI msgs,
941 * MCI mode will be enabled later, right before reset the MCI TX and RX.
942 */
943 if (AR_SREV_9565(ah)) {
944 u8 ant = MS(mci->config, ATH_MCI_CONFIG_ANT_ARCH);
945
946 if (ant == ATH_MCI_ANT_ARCH_1_ANT_PA_LNA_SHARED)
947 ar9003_mci_set_btcoex_ctrl_9565_1ANT(ah);
948 else
949 ar9003_mci_set_btcoex_ctrl_9565_2ANT(ah);
950 } else {
951 ar9003_mci_set_btcoex_ctrl_9462(ah);
952 }
953
954 if (is_2g && !(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
955 ar9003_mci_osla_setup(ah, true);
956 else
957 ar9003_mci_osla_setup(ah, false);
958
959 REG_SET_BIT(ah, AR_PHY_GLB_CONTROL,
960 AR_BTCOEX_CTRL_SPDT_ENABLE);
961 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL3,
962 AR_BTCOEX_CTRL3_CONT_INFO_TIMEOUT, 20);
963
964 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_RX_DEWEIGHT, 0);
965 REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
966
967 /* Set the time out to 3.125ms (5 BT slots) */
968 REG_RMW_FIELD(ah, AR_BTCOEX_WL_LNA, AR_BTCOEX_WL_LNA_TIMEOUT, 0x3D090);
969
970 /* concurrent tx priority */
971 if (mci->config & ATH_MCI_CONFIG_CONCUR_TX) {
972 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
973 AR_BTCOEX_CTRL2_DESC_BASED_TXPWR_ENABLE, 0);
974 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
975 AR_BTCOEX_CTRL2_TXPWR_THRESH, 0x7f);
976 REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
977 AR_BTCOEX_CTRL_REDUCE_TXPWR, 0);
978 for (i = 0; i < 8; i++)
979 REG_WRITE(ah, AR_BTCOEX_MAX_TXPWR(i), 0x7f7f7f7f);
980 }
981
982 regval = MS(mci->config, ATH_MCI_CONFIG_CLK_DIV);
983 REG_RMW_FIELD(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_CLK_DIV, regval);
984 REG_SET_BIT(ah, AR_BTCOEX_CTRL, AR_BTCOEX_CTRL_MCI_MODE_EN);
985
986 /* Resetting the Rx and Tx paths of MCI */
987 regval = REG_READ(ah, AR_MCI_COMMAND2);
988 regval |= SM(1, AR_MCI_COMMAND2_RESET_TX);
989 REG_WRITE(ah, AR_MCI_COMMAND2, regval);
990
991 udelay(1);
992
993 regval &= ~SM(1, AR_MCI_COMMAND2_RESET_TX);
994 REG_WRITE(ah, AR_MCI_COMMAND2, regval);
995
996 if (is_full_sleep) {
997 ar9003_mci_mute_bt(ah);
998 udelay(100);
999 }
1000
1001 /* Check pending GPM msg before MCI Reset Rx */
1002 ar9003_mci_check_gpm_offset(ah);
1003
1004 regval |= SM(1, AR_MCI_COMMAND2_RESET_RX);
1005 REG_WRITE(ah, AR_MCI_COMMAND2, regval);
1006 udelay(1);
1007 regval &= ~SM(1, AR_MCI_COMMAND2_RESET_RX);
1008 REG_WRITE(ah, AR_MCI_COMMAND2, regval);
1009
1010 /* Init GPM offset after MCI Reset Rx */
1011 ar9003_mci_state(ah, MCI_STATE_INIT_GPM_OFFSET);
1012
1013 REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE,
1014 (SM(0xe801, AR_MCI_MSG_ATTRIBUTES_TABLE_INVALID_HDR) |
1015 SM(0x0000, AR_MCI_MSG_ATTRIBUTES_TABLE_CHECKSUM)));
1016
1017 if (MCI_ANT_ARCH_PA_LNA_SHARED(mci))
1018 REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
1019 AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
1020 else
1021 REG_SET_BIT(ah, AR_MCI_TX_CTRL,
1022 AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
1023
1024 ar9003_mci_observation_set_up(ah);
1025
1026 mci->ready = true;
1027 ar9003_mci_prep_interface(ah);
1028 ar9003_mci_stat_setup(ah);
1029
1030 if (en_int)
1031 ar9003_mci_enable_interrupt(ah);
1032
1033 if (ath9k_hw_is_aic_enabled(ah))
1034 ar9003_aic_start_normal(ah);
1035
1036 return 0;
1037}
1038
1039void ar9003_mci_stop_bt(struct ath_hw *ah, bool save_fullsleep)
1040{
1041 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
1042
1043 ar9003_mci_disable_interrupt(ah);
1044
1045 if (mci_hw->ready && !save_fullsleep) {
1046 ar9003_mci_mute_bt(ah);
1047 udelay(20);
1048 REG_WRITE(ah, AR_BTCOEX_CTRL, 0);
1049 }
1050
1051 mci_hw->bt_state = MCI_BT_SLEEP;
1052 mci_hw->ready = false;
1053}
1054
1055static void ar9003_mci_send_2g5g_status(struct ath_hw *ah, bool wait_done)
1056{
1057 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1058 u32 new_flags, to_set, to_clear;
1059
1060 if (!mci->update_2g5g || (mci->bt_state == MCI_BT_SLEEP))
1061 return;
1062
1063 if (mci->is_2g) {
1064 new_flags = MCI_2G_FLAGS;
1065 to_clear = MCI_2G_FLAGS_CLEAR_MASK;
1066 to_set = MCI_2G_FLAGS_SET_MASK;
1067 } else {
1068 new_flags = MCI_5G_FLAGS;
1069 to_clear = MCI_5G_FLAGS_CLEAR_MASK;
1070 to_set = MCI_5G_FLAGS_SET_MASK;
1071 }
1072
1073 if (to_clear)
1074 ar9003_mci_send_coex_bt_flags(ah, wait_done,
1075 MCI_GPM_COEX_BT_FLAGS_CLEAR,
1076 to_clear);
1077 if (to_set)
1078 ar9003_mci_send_coex_bt_flags(ah, wait_done,
1079 MCI_GPM_COEX_BT_FLAGS_SET,
1080 to_set);
1081}
1082
1083static void ar9003_mci_queue_unsent_gpm(struct ath_hw *ah, u8 header,
1084 u32 *payload, bool queue)
1085{
1086 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1087 u8 type, opcode;
1088
1089 /* check if the message is to be queued */
1090 if (header != MCI_GPM)
1091 return;
1092
1093 type = MCI_GPM_TYPE(payload);
1094 opcode = MCI_GPM_OPCODE(payload);
1095
1096 if (type != MCI_GPM_COEX_AGENT)
1097 return;
1098
1099 switch (opcode) {
1100 case MCI_GPM_COEX_BT_UPDATE_FLAGS:
1101 if (*(((u8 *)payload) + MCI_GPM_COEX_B_BT_FLAGS_OP) ==
1102 MCI_GPM_COEX_BT_FLAGS_READ)
1103 break;
1104
1105 mci->update_2g5g = queue;
1106
1107 break;
1108 case MCI_GPM_COEX_WLAN_CHANNELS:
1109 mci->wlan_channels_update = queue;
1110 break;
1111 case MCI_GPM_COEX_HALT_BT_GPM:
1112 if (*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) ==
1113 MCI_GPM_COEX_BT_GPM_UNHALT) {
1114 mci->unhalt_bt_gpm = queue;
1115
1116 if (!queue)
1117 mci->halted_bt_gpm = false;
1118 }
1119
1120 if (*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) ==
1121 MCI_GPM_COEX_BT_GPM_HALT) {
1122
1123 mci->halted_bt_gpm = !queue;
1124 }
1125
1126 break;
1127 default:
1128 break;
1129 }
1130}
1131
1132void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force)
1133{
1134 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1135
1136 if (!mci->update_2g5g && !force)
1137 return;
1138
1139 if (mci->is_2g) {
1140 ar9003_mci_send_2g5g_status(ah, true);
1141 ar9003_mci_send_lna_transfer(ah, true);
1142 udelay(5);
1143
1144 REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
1145 AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
1146 REG_CLR_BIT(ah, AR_PHY_GLB_CONTROL,
1147 AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);
1148
1149 if (!(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
1150 ar9003_mci_osla_setup(ah, true);
1151
1152 if (AR_SREV_9462(ah))
1153 REG_WRITE(ah, AR_SELFGEN_MASK, 0x02);
1154 } else {
1155 ar9003_mci_send_lna_take(ah, true);
1156 udelay(5);
1157
1158 REG_SET_BIT(ah, AR_MCI_TX_CTRL,
1159 AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
1160 REG_SET_BIT(ah, AR_PHY_GLB_CONTROL,
1161 AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);
1162
1163 ar9003_mci_osla_setup(ah, false);
1164 ar9003_mci_send_2g5g_status(ah, true);
1165 }
1166}
1167
1168bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag,
1169 u32 *payload, u8 len, bool wait_done,
1170 bool check_bt)
1171{
1172 struct ath_common *common = ath9k_hw_common(ah);
1173 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1174 bool msg_sent = false;
1175 u32 regval;
1176 u32 saved_mci_int_en;
1177 int i;
1178
1179 saved_mci_int_en = REG_READ(ah, AR_MCI_INTERRUPT_EN);
1180 regval = REG_READ(ah, AR_BTCOEX_CTRL);
1181
1182 if ((regval == 0xdeadbeef) || !(regval & AR_BTCOEX_CTRL_MCI_MODE_EN)) {
1183 ath_dbg(common, MCI,
1184 "MCI Not sending 0x%x. MCI is not enabled. full_sleep = %d\n",
1185 header, (ah->power_mode == ATH9K_PM_FULL_SLEEP) ? 1 : 0);
1186 ar9003_mci_queue_unsent_gpm(ah, header, payload, true);
1187 return false;
1188 } else if (check_bt && (mci->bt_state == MCI_BT_SLEEP)) {
1189 ath_dbg(common, MCI,
1190 "MCI Don't send message 0x%x. BT is in sleep state\n",
1191 header);
1192 ar9003_mci_queue_unsent_gpm(ah, header, payload, true);
1193 return false;
1194 }
1195
1196 if (wait_done)
1197 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, 0);
1198
1199 /* Need to clear SW_MSG_DONE raw bit before wait */
1200
1201 REG_WRITE(ah, AR_MCI_INTERRUPT_RAW,
1202 (AR_MCI_INTERRUPT_SW_MSG_DONE |
1203 AR_MCI_INTERRUPT_MSG_FAIL_MASK));
1204
1205 if (payload) {
1206 for (i = 0; (i * 4) < len; i++)
1207 REG_WRITE(ah, (AR_MCI_TX_PAYLOAD0 + i * 4),
1208 *(payload + i));
1209 }
1210
1211 REG_WRITE(ah, AR_MCI_COMMAND0,
1212 (SM((flag & MCI_FLAG_DISABLE_TIMESTAMP),
1213 AR_MCI_COMMAND0_DISABLE_TIMESTAMP) |
1214 SM(len, AR_MCI_COMMAND0_LEN) |
1215 SM(header, AR_MCI_COMMAND0_HEADER)));
1216
1217 if (wait_done &&
1218 !(ar9003_mci_wait_for_interrupt(ah, AR_MCI_INTERRUPT_RAW,
1219 AR_MCI_INTERRUPT_SW_MSG_DONE, 500)))
1220 ar9003_mci_queue_unsent_gpm(ah, header, payload, true);
1221 else {
1222 ar9003_mci_queue_unsent_gpm(ah, header, payload, false);
1223 msg_sent = true;
1224 }
1225
1226 if (wait_done)
1227 REG_WRITE(ah, AR_MCI_INTERRUPT_EN, saved_mci_int_en);
1228
1229 return msg_sent;
1230}
1231EXPORT_SYMBOL(ar9003_mci_send_message);
1232
1233void ar9003_mci_init_cal_req(struct ath_hw *ah, bool *is_reusable)
1234{
1235 struct ath_common *common = ath9k_hw_common(ah);
1236 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
1237 u32 pld[4] = {0, 0, 0, 0};
1238
1239 if ((mci_hw->bt_state != MCI_BT_AWAKE) ||
1240 (mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL))
1241 return;
1242
1243 MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_REQ);
1244 pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_seq++;
1245
1246 ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
1247
1248 if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_GRANT, 0, 50000)) {
1249 ath_dbg(common, MCI, "MCI BT_CAL_GRANT received\n");
1250 } else {
1251 *is_reusable = false;
1252 ath_dbg(common, MCI, "MCI BT_CAL_GRANT not received\n");
1253 }
1254}
1255
1256void ar9003_mci_init_cal_done(struct ath_hw *ah)
1257{
1258 struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
1259 u32 pld[4] = {0, 0, 0, 0};
1260
1261 if ((mci_hw->bt_state != MCI_BT_AWAKE) ||
1262 (mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL))
1263 return;
1264
1265 MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_DONE);
1266 pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_done++;
1267 ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
1268}
1269
1270int ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
1271 u16 len, u32 sched_addr)
1272{
1273 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1274
1275 mci->gpm_addr = gpm_addr;
1276 mci->gpm_buf = gpm_buf;
1277 mci->gpm_len = len;
1278 mci->sched_addr = sched_addr;
1279
1280 return ar9003_mci_reset(ah, true, true, true);
1281}
1282EXPORT_SYMBOL(ar9003_mci_setup);
1283
1284void ar9003_mci_cleanup(struct ath_hw *ah)
1285{
1286 /* Turn off MCI and Jupiter mode. */
1287 REG_WRITE(ah, AR_BTCOEX_CTRL, 0x00);
1288 ar9003_mci_disable_interrupt(ah);
1289}
1290EXPORT_SYMBOL(ar9003_mci_cleanup);
1291
1292u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type)
1293{
1294 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1295 u32 value = 0, tsf;
1296 u8 query_type;
1297
1298 switch (state_type) {
1299 case MCI_STATE_ENABLE:
1300 if (mci->ready) {
1301 value = REG_READ(ah, AR_BTCOEX_CTRL);
1302
1303 if ((value == 0xdeadbeef) || (value == 0xffffffff))
1304 value = 0;
1305 }
1306 value &= AR_BTCOEX_CTRL_MCI_MODE_EN;
1307 break;
1308 case MCI_STATE_INIT_GPM_OFFSET:
1309 value = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR);
1310
1311 if (value < mci->gpm_len)
1312 mci->gpm_idx = value;
1313 else
1314 mci->gpm_idx = 0;
1315 break;
1316 case MCI_STATE_LAST_SCHD_MSG_OFFSET:
1317 value = MS(REG_READ(ah, AR_MCI_RX_STATUS),
1318 AR_MCI_RX_LAST_SCHD_MSG_INDEX);
1319 /* Make it in bytes */
1320 value <<= 4;
1321 break;
1322 case MCI_STATE_REMOTE_SLEEP:
1323 value = MS(REG_READ(ah, AR_MCI_RX_STATUS),
1324 AR_MCI_RX_REMOTE_SLEEP) ?
1325 MCI_BT_SLEEP : MCI_BT_AWAKE;
1326 break;
1327 case MCI_STATE_SET_BT_AWAKE:
1328 mci->bt_state = MCI_BT_AWAKE;
1329 ar9003_mci_send_coex_version_query(ah, true);
1330 ar9003_mci_send_coex_wlan_channels(ah, true);
1331
1332 if (mci->unhalt_bt_gpm)
1333 ar9003_mci_send_coex_halt_bt_gpm(ah, false, true);
1334
1335 ar9003_mci_2g5g_switch(ah, false);
1336 break;
1337 case MCI_STATE_RESET_REQ_WAKE:
1338 ar9003_mci_reset_req_wakeup(ah);
1339 mci->update_2g5g = true;
1340
1341 if (mci->config & ATH_MCI_CONFIG_MCI_OBS_MASK) {
1342 /* Check if we still have control of the GPIOs */
1343 if ((REG_READ(ah, AR_GLB_GPIO_CONTROL) &
1344 ATH_MCI_CONFIG_MCI_OBS_GPIO) !=
1345 ATH_MCI_CONFIG_MCI_OBS_GPIO) {
1346 ar9003_mci_observation_set_up(ah);
1347 }
1348 }
1349 break;
1350 case MCI_STATE_SEND_WLAN_COEX_VERSION:
1351 ar9003_mci_send_coex_version_response(ah, true);
1352 break;
1353 case MCI_STATE_SEND_VERSION_QUERY:
1354 ar9003_mci_send_coex_version_query(ah, true);
1355 break;
1356 case MCI_STATE_SEND_STATUS_QUERY:
1357 query_type = MCI_GPM_COEX_QUERY_BT_TOPOLOGY;
1358 ar9003_mci_send_coex_bt_status_query(ah, true, query_type);
1359 break;
1360 case MCI_STATE_RECOVER_RX:
1361 tsf = ath9k_hw_gettsf32(ah);
1362 if ((tsf - mci->last_recovery) <= MCI_RECOVERY_DUR_TSF) {
1363 ath_dbg(ath9k_hw_common(ah), MCI,
1364 "(MCI) ignore Rx recovery\n");
1365 break;
1366 }
1367 ath_dbg(ath9k_hw_common(ah), MCI, "(MCI) RECOVER RX\n");
1368 mci->last_recovery = tsf;
1369 ar9003_mci_prep_interface(ah);
1370 mci->query_bt = true;
1371 mci->need_flush_btinfo = true;
1372 ar9003_mci_send_coex_wlan_channels(ah, true);
1373 ar9003_mci_2g5g_switch(ah, false);
1374 break;
1375 case MCI_STATE_NEED_FTP_STOMP:
1376 value = !(mci->config & ATH_MCI_CONFIG_DISABLE_FTP_STOMP);
1377 break;
1378 case MCI_STATE_NEED_FLUSH_BT_INFO:
1379 value = (!mci->unhalt_bt_gpm && mci->need_flush_btinfo) ? 1 : 0;
1380 mci->need_flush_btinfo = false;
1381 break;
1382 case MCI_STATE_AIC_CAL:
1383 if (ath9k_hw_is_aic_enabled(ah))
1384 value = ar9003_aic_calibration(ah);
1385 break;
1386 case MCI_STATE_AIC_START:
1387 if (ath9k_hw_is_aic_enabled(ah))
1388 ar9003_aic_start_normal(ah);
1389 break;
1390 case MCI_STATE_AIC_CAL_RESET:
1391 if (ath9k_hw_is_aic_enabled(ah))
1392 value = ar9003_aic_cal_reset(ah);
1393 break;
1394 case MCI_STATE_AIC_CAL_SINGLE:
1395 if (ath9k_hw_is_aic_enabled(ah))
1396 value = ar9003_aic_calibration_single(ah);
1397 break;
1398 default:
1399 break;
1400 }
1401
1402 return value;
1403}
1404EXPORT_SYMBOL(ar9003_mci_state);
1405
1406void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah)
1407{
1408 struct ath_common *common = ath9k_hw_common(ah);
1409 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1410
1411 ath_dbg(common, MCI, "Give LNA and SPDT control to BT\n");
1412
1413 ar9003_mci_send_lna_take(ah, true);
1414 udelay(50);
1415
1416 REG_SET_BIT(ah, AR_PHY_GLB_CONTROL, AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);
1417 mci->is_2g = false;
1418 mci->update_2g5g = true;
1419 ar9003_mci_send_2g5g_status(ah, true);
1420
1421 /* Force another 2g5g update at next scanning */
1422 mci->update_2g5g = true;
1423}
1424
1425void ar9003_mci_set_power_awake(struct ath_hw *ah)
1426{
1427 u32 btcoex_ctrl2, diag_sw;
1428 int i;
1429 u8 lna_ctrl, bt_sleep;
1430
1431 for (i = 0; i < AH_WAIT_TIMEOUT; i++) {
1432 btcoex_ctrl2 = REG_READ(ah, AR_BTCOEX_CTRL2);
1433 if (btcoex_ctrl2 != 0xdeadbeef)
1434 break;
1435 udelay(AH_TIME_QUANTUM);
1436 }
1437 REG_WRITE(ah, AR_BTCOEX_CTRL2, (btcoex_ctrl2 | BIT(23)));
1438
1439 for (i = 0; i < AH_WAIT_TIMEOUT; i++) {
1440 diag_sw = REG_READ(ah, AR_DIAG_SW);
1441 if (diag_sw != 0xdeadbeef)
1442 break;
1443 udelay(AH_TIME_QUANTUM);
1444 }
1445 REG_WRITE(ah, AR_DIAG_SW, (diag_sw | BIT(27) | BIT(19) | BIT(18)));
1446 lna_ctrl = REG_READ(ah, AR_OBS_BUS_CTRL) & 0x3;
1447 bt_sleep = MS(REG_READ(ah, AR_MCI_RX_STATUS), AR_MCI_RX_REMOTE_SLEEP);
1448
1449 REG_WRITE(ah, AR_BTCOEX_CTRL2, btcoex_ctrl2);
1450 REG_WRITE(ah, AR_DIAG_SW, diag_sw);
1451
1452 if (bt_sleep && (lna_ctrl == 2)) {
1453 REG_SET_BIT(ah, AR_BTCOEX_RC, 0x1);
1454 REG_CLR_BIT(ah, AR_BTCOEX_RC, 0x1);
1455 udelay(50);
1456 }
1457}
1458
1459void ar9003_mci_check_gpm_offset(struct ath_hw *ah)
1460{
1461 struct ath_common *common = ath9k_hw_common(ah);
1462 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1463 u32 offset;
1464
1465 /*
1466 * This should only be called before "MAC Warm Reset" or "MCI Reset Rx".
1467 */
1468 offset = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR);
1469 if (mci->gpm_idx == offset)
1470 return;
1471 ath_dbg(common, MCI, "GPM cached write pointer mismatch %d %d\n",
1472 mci->gpm_idx, offset);
1473 mci->query_bt = true;
1474 mci->need_flush_btinfo = true;
1475 mci->gpm_idx = 0;
1476}
1477
1478u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, u32 *more)
1479{
1480 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1481 u32 offset, more_gpm = 0, gpm_ptr;
1482
1483 /*
1484 * This could be useful to avoid new GPM message interrupt which
1485 * may lead to spurious interrupt after power sleep, or multiple
1486 * entry of ath_mci_intr().
1487 * Adding empty GPM check by returning HAL_MCI_GPM_INVALID can
1488 * alleviate this effect, but clearing GPM RX interrupt bit is
1489 * safe, because whether this is called from hw or driver code
1490 * there must be an interrupt bit set/triggered initially
1491 */
1492 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
1493 AR_MCI_INTERRUPT_RX_MSG_GPM);
1494
1495 gpm_ptr = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR);
1496 offset = gpm_ptr;
1497
1498 if (!offset)
1499 offset = mci->gpm_len - 1;
1500 else if (offset >= mci->gpm_len) {
1501 if (offset != 0xFFFF)
1502 offset = 0;
1503 } else {
1504 offset--;
1505 }
1506
1507 if ((offset == 0xFFFF) || (gpm_ptr == mci->gpm_idx)) {
1508 offset = MCI_GPM_INVALID;
1509 more_gpm = MCI_GPM_NOMORE;
1510 goto out;
1511 }
1512 for (;;) {
1513 u32 temp_index;
1514
1515 /* skip reserved GPM if any */
1516
1517 if (offset != mci->gpm_idx)
1518 more_gpm = MCI_GPM_MORE;
1519 else
1520 more_gpm = MCI_GPM_NOMORE;
1521
1522 temp_index = mci->gpm_idx;
1523
1524 if (temp_index >= mci->gpm_len)
1525 temp_index = 0;
1526
1527 mci->gpm_idx++;
1528
1529 if (mci->gpm_idx >= mci->gpm_len)
1530 mci->gpm_idx = 0;
1531
1532 if (ar9003_mci_is_gpm_valid(ah, temp_index)) {
1533 offset = temp_index;
1534 break;
1535 }
1536
1537 if (more_gpm == MCI_GPM_NOMORE) {
1538 offset = MCI_GPM_INVALID;
1539 break;
1540 }
1541 }
1542
1543 if (offset != MCI_GPM_INVALID)
1544 offset <<= 4;
1545out:
1546 if (more)
1547 *more = more_gpm;
1548
1549 return offset;
1550}
1551EXPORT_SYMBOL(ar9003_mci_get_next_gpm_offset);
1552
1553void ar9003_mci_set_bt_version(struct ath_hw *ah, u8 major, u8 minor)
1554{
1555 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1556
1557 mci->bt_ver_major = major;
1558 mci->bt_ver_minor = minor;
1559 mci->bt_version_known = true;
1560 ath_dbg(ath9k_hw_common(ah), MCI, "MCI BT version set: %d.%d\n",
1561 mci->bt_ver_major, mci->bt_ver_minor);
1562}
1563EXPORT_SYMBOL(ar9003_mci_set_bt_version);
1564
1565void ar9003_mci_send_wlan_channels(struct ath_hw *ah)
1566{
1567 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1568
1569 mci->wlan_channels_update = true;
1570 ar9003_mci_send_coex_wlan_channels(ah, true);
1571}
1572EXPORT_SYMBOL(ar9003_mci_send_wlan_channels);
1573
1574u16 ar9003_mci_get_max_txpower(struct ath_hw *ah, u8 ctlmode)
1575{
1576 if (!ah->btcoex_hw.mci.concur_tx)
1577 goto out;
1578
1579 if (ctlmode == CTL_2GHT20)
1580 return ATH_BTCOEX_HT20_MAX_TXPOWER;
1581 else if (ctlmode == CTL_2GHT40)
1582 return ATH_BTCOEX_HT40_MAX_TXPOWER;
1583
1584out:
1585 return -1;
1586}