Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
5b68138e | 2 | * Copyright (c) 2008-2011 Atheros Communications Inc. |
f078f209 LR |
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/io.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
9d9779e7 | 19 | #include <linux/module.h> |
f078f209 LR |
20 | #include <asm/unaligned.h> |
21 | ||
af03abec | 22 | #include "hw.h" |
d70357d5 | 23 | #include "hw-ops.h" |
cfe8cba9 | 24 | #include "rc.h" |
b622a720 | 25 | #include "ar9003_mac.h" |
f4701b5a | 26 | #include "ar9003_mci.h" |
462e58f2 BG |
27 | #include "debug.h" |
28 | #include "ath9k.h" | |
f078f209 | 29 | |
cbe61d8a | 30 | static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type); |
f078f209 | 31 | |
7322fd19 LR |
32 | MODULE_AUTHOR("Atheros Communications"); |
33 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); | |
34 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); | |
35 | MODULE_LICENSE("Dual BSD/GPL"); | |
36 | ||
37 | static int __init ath9k_init(void) | |
38 | { | |
39 | return 0; | |
40 | } | |
41 | module_init(ath9k_init); | |
42 | ||
43 | static void __exit ath9k_exit(void) | |
44 | { | |
45 | return; | |
46 | } | |
47 | module_exit(ath9k_exit); | |
48 | ||
d70357d5 LR |
49 | /* Private hardware callbacks */ |
50 | ||
51 | static void ath9k_hw_init_cal_settings(struct ath_hw *ah) | |
52 | { | |
53 | ath9k_hw_private_ops(ah)->init_cal_settings(ah); | |
54 | } | |
55 | ||
56 | static void ath9k_hw_init_mode_regs(struct ath_hw *ah) | |
57 | { | |
58 | ath9k_hw_private_ops(ah)->init_mode_regs(ah); | |
59 | } | |
60 | ||
64773964 LR |
61 | static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah, |
62 | struct ath9k_channel *chan) | |
63 | { | |
64 | return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan); | |
65 | } | |
66 | ||
991312d8 LR |
67 | static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah) |
68 | { | |
69 | if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs) | |
70 | return; | |
71 | ||
72 | ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah); | |
73 | } | |
74 | ||
e36b27af LR |
75 | static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah) |
76 | { | |
77 | /* You will not have this callback if using the old ANI */ | |
78 | if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs) | |
79 | return; | |
80 | ||
81 | ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah); | |
82 | } | |
83 | ||
f1dc5600 S |
84 | /********************/ |
85 | /* Helper Functions */ | |
86 | /********************/ | |
f078f209 | 87 | |
462e58f2 BG |
88 | #ifdef CONFIG_ATH9K_DEBUGFS |
89 | ||
90 | void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause) | |
91 | { | |
92 | struct ath_softc *sc = common->priv; | |
93 | if (sync_cause) | |
94 | sc->debug.stats.istats.sync_cause_all++; | |
95 | if (sync_cause & AR_INTR_SYNC_RTC_IRQ) | |
96 | sc->debug.stats.istats.sync_rtc_irq++; | |
97 | if (sync_cause & AR_INTR_SYNC_MAC_IRQ) | |
98 | sc->debug.stats.istats.sync_mac_irq++; | |
99 | if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS) | |
100 | sc->debug.stats.istats.eeprom_illegal_access++; | |
101 | if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT) | |
102 | sc->debug.stats.istats.apb_timeout++; | |
103 | if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT) | |
104 | sc->debug.stats.istats.pci_mode_conflict++; | |
105 | if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) | |
106 | sc->debug.stats.istats.host1_fatal++; | |
107 | if (sync_cause & AR_INTR_SYNC_HOST1_PERR) | |
108 | sc->debug.stats.istats.host1_perr++; | |
109 | if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR) | |
110 | sc->debug.stats.istats.trcv_fifo_perr++; | |
111 | if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP) | |
112 | sc->debug.stats.istats.radm_cpl_ep++; | |
113 | if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT) | |
114 | sc->debug.stats.istats.radm_cpl_dllp_abort++; | |
115 | if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT) | |
116 | sc->debug.stats.istats.radm_cpl_tlp_abort++; | |
117 | if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR) | |
118 | sc->debug.stats.istats.radm_cpl_ecrc_err++; | |
119 | if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) | |
120 | sc->debug.stats.istats.radm_cpl_timeout++; | |
121 | if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) | |
122 | sc->debug.stats.istats.local_timeout++; | |
123 | if (sync_cause & AR_INTR_SYNC_PM_ACCESS) | |
124 | sc->debug.stats.istats.pm_access++; | |
125 | if (sync_cause & AR_INTR_SYNC_MAC_AWAKE) | |
126 | sc->debug.stats.istats.mac_awake++; | |
127 | if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP) | |
128 | sc->debug.stats.istats.mac_asleep++; | |
129 | if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS) | |
130 | sc->debug.stats.istats.mac_sleep_access++; | |
131 | } | |
132 | #endif | |
133 | ||
134 | ||
dfdac8ac | 135 | static void ath9k_hw_set_clockrate(struct ath_hw *ah) |
f1dc5600 | 136 | { |
b002a4a9 | 137 | struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; |
dfdac8ac FF |
138 | struct ath_common *common = ath9k_hw_common(ah); |
139 | unsigned int clockrate; | |
cbe61d8a | 140 | |
087b6ff6 FF |
141 | /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */ |
142 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) | |
143 | clockrate = 117; | |
144 | else if (!ah->curchan) /* should really check for CCK instead */ | |
dfdac8ac FF |
145 | clockrate = ATH9K_CLOCK_RATE_CCK; |
146 | else if (conf->channel->band == IEEE80211_BAND_2GHZ) | |
147 | clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM; | |
148 | else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK) | |
149 | clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM; | |
e5553724 | 150 | else |
dfdac8ac FF |
151 | clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM; |
152 | ||
153 | if (conf_is_ht40(conf)) | |
154 | clockrate *= 2; | |
155 | ||
906c7205 FF |
156 | if (ah->curchan) { |
157 | if (IS_CHAN_HALF_RATE(ah->curchan)) | |
158 | clockrate /= 2; | |
159 | if (IS_CHAN_QUARTER_RATE(ah->curchan)) | |
160 | clockrate /= 4; | |
161 | } | |
162 | ||
dfdac8ac | 163 | common->clockrate = clockrate; |
f1dc5600 S |
164 | } |
165 | ||
cbe61d8a | 166 | static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs) |
f1dc5600 | 167 | { |
dfdac8ac | 168 | struct ath_common *common = ath9k_hw_common(ah); |
cbe61d8a | 169 | |
dfdac8ac | 170 | return usecs * common->clockrate; |
f1dc5600 | 171 | } |
f078f209 | 172 | |
0caa7b14 | 173 | bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout) |
f078f209 LR |
174 | { |
175 | int i; | |
176 | ||
0caa7b14 S |
177 | BUG_ON(timeout < AH_TIME_QUANTUM); |
178 | ||
179 | for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) { | |
f078f209 LR |
180 | if ((REG_READ(ah, reg) & mask) == val) |
181 | return true; | |
182 | ||
183 | udelay(AH_TIME_QUANTUM); | |
184 | } | |
04bd4638 | 185 | |
d2182b69 | 186 | ath_dbg(ath9k_hw_common(ah), ANY, |
226afe68 JP |
187 | "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n", |
188 | timeout, reg, REG_READ(ah, reg), mask, val); | |
f078f209 | 189 | |
f1dc5600 | 190 | return false; |
f078f209 | 191 | } |
7322fd19 | 192 | EXPORT_SYMBOL(ath9k_hw_wait); |
f078f209 | 193 | |
7c5adc8d FF |
194 | void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan, |
195 | int hw_delay) | |
196 | { | |
197 | if (IS_CHAN_B(chan)) | |
198 | hw_delay = (4 * hw_delay) / 22; | |
199 | else | |
200 | hw_delay /= 10; | |
201 | ||
202 | if (IS_CHAN_HALF_RATE(chan)) | |
203 | hw_delay *= 2; | |
204 | else if (IS_CHAN_QUARTER_RATE(chan)) | |
205 | hw_delay *= 4; | |
206 | ||
207 | udelay(hw_delay + BASE_ACTIVATE_DELAY); | |
208 | } | |
209 | ||
a9b6b256 FF |
210 | void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array, |
211 | int column, unsigned int *writecnt) | |
212 | { | |
213 | int r; | |
214 | ||
215 | ENABLE_REGWRITE_BUFFER(ah); | |
216 | for (r = 0; r < array->ia_rows; r++) { | |
217 | REG_WRITE(ah, INI_RA(array, r, 0), | |
218 | INI_RA(array, r, column)); | |
219 | DO_DELAY(*writecnt); | |
220 | } | |
221 | REGWRITE_BUFFER_FLUSH(ah); | |
222 | } | |
223 | ||
f078f209 LR |
224 | u32 ath9k_hw_reverse_bits(u32 val, u32 n) |
225 | { | |
226 | u32 retval; | |
227 | int i; | |
228 | ||
229 | for (i = 0, retval = 0; i < n; i++) { | |
230 | retval = (retval << 1) | (val & 1); | |
231 | val >>= 1; | |
232 | } | |
233 | return retval; | |
234 | } | |
235 | ||
cbe61d8a | 236 | u16 ath9k_hw_computetxtime(struct ath_hw *ah, |
545750d3 | 237 | u8 phy, int kbps, |
f1dc5600 S |
238 | u32 frameLen, u16 rateix, |
239 | bool shortPreamble) | |
f078f209 | 240 | { |
f1dc5600 | 241 | u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime; |
f078f209 | 242 | |
f1dc5600 S |
243 | if (kbps == 0) |
244 | return 0; | |
f078f209 | 245 | |
545750d3 | 246 | switch (phy) { |
46d14a58 | 247 | case WLAN_RC_PHY_CCK: |
f1dc5600 | 248 | phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS; |
545750d3 | 249 | if (shortPreamble) |
f1dc5600 S |
250 | phyTime >>= 1; |
251 | numBits = frameLen << 3; | |
252 | txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps); | |
253 | break; | |
46d14a58 | 254 | case WLAN_RC_PHY_OFDM: |
2660b81a | 255 | if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) { |
f1dc5600 S |
256 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000; |
257 | numBits = OFDM_PLCP_BITS + (frameLen << 3); | |
258 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); | |
259 | txTime = OFDM_SIFS_TIME_QUARTER | |
260 | + OFDM_PREAMBLE_TIME_QUARTER | |
261 | + (numSymbols * OFDM_SYMBOL_TIME_QUARTER); | |
2660b81a S |
262 | } else if (ah->curchan && |
263 | IS_CHAN_HALF_RATE(ah->curchan)) { | |
f1dc5600 S |
264 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000; |
265 | numBits = OFDM_PLCP_BITS + (frameLen << 3); | |
266 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); | |
267 | txTime = OFDM_SIFS_TIME_HALF + | |
268 | OFDM_PREAMBLE_TIME_HALF | |
269 | + (numSymbols * OFDM_SYMBOL_TIME_HALF); | |
270 | } else { | |
271 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000; | |
272 | numBits = OFDM_PLCP_BITS + (frameLen << 3); | |
273 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); | |
274 | txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME | |
275 | + (numSymbols * OFDM_SYMBOL_TIME); | |
276 | } | |
277 | break; | |
278 | default: | |
3800276a JP |
279 | ath_err(ath9k_hw_common(ah), |
280 | "Unknown phy %u (rate ix %u)\n", phy, rateix); | |
f1dc5600 S |
281 | txTime = 0; |
282 | break; | |
283 | } | |
f078f209 | 284 | |
f1dc5600 S |
285 | return txTime; |
286 | } | |
7322fd19 | 287 | EXPORT_SYMBOL(ath9k_hw_computetxtime); |
f078f209 | 288 | |
cbe61d8a | 289 | void ath9k_hw_get_channel_centers(struct ath_hw *ah, |
f1dc5600 S |
290 | struct ath9k_channel *chan, |
291 | struct chan_centers *centers) | |
f078f209 | 292 | { |
f1dc5600 | 293 | int8_t extoff; |
f078f209 | 294 | |
f1dc5600 S |
295 | if (!IS_CHAN_HT40(chan)) { |
296 | centers->ctl_center = centers->ext_center = | |
297 | centers->synth_center = chan->channel; | |
298 | return; | |
f078f209 | 299 | } |
f078f209 | 300 | |
f1dc5600 S |
301 | if ((chan->chanmode == CHANNEL_A_HT40PLUS) || |
302 | (chan->chanmode == CHANNEL_G_HT40PLUS)) { | |
303 | centers->synth_center = | |
304 | chan->channel + HT40_CHANNEL_CENTER_SHIFT; | |
305 | extoff = 1; | |
306 | } else { | |
307 | centers->synth_center = | |
308 | chan->channel - HT40_CHANNEL_CENTER_SHIFT; | |
309 | extoff = -1; | |
310 | } | |
f078f209 | 311 | |
f1dc5600 S |
312 | centers->ctl_center = |
313 | centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT); | |
6420014c | 314 | /* 25 MHz spacing is supported by hw but not on upper layers */ |
f1dc5600 | 315 | centers->ext_center = |
6420014c | 316 | centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT); |
f078f209 LR |
317 | } |
318 | ||
f1dc5600 S |
319 | /******************/ |
320 | /* Chip Revisions */ | |
321 | /******************/ | |
322 | ||
cbe61d8a | 323 | static void ath9k_hw_read_revisions(struct ath_hw *ah) |
f078f209 | 324 | { |
f1dc5600 | 325 | u32 val; |
f078f209 | 326 | |
ecb1d385 VT |
327 | switch (ah->hw_version.devid) { |
328 | case AR5416_AR9100_DEVID: | |
329 | ah->hw_version.macVersion = AR_SREV_VERSION_9100; | |
330 | break; | |
3762561a GJ |
331 | case AR9300_DEVID_AR9330: |
332 | ah->hw_version.macVersion = AR_SREV_VERSION_9330; | |
333 | if (ah->get_mac_revision) { | |
334 | ah->hw_version.macRev = ah->get_mac_revision(); | |
335 | } else { | |
336 | val = REG_READ(ah, AR_SREV); | |
337 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); | |
338 | } | |
339 | return; | |
ecb1d385 VT |
340 | case AR9300_DEVID_AR9340: |
341 | ah->hw_version.macVersion = AR_SREV_VERSION_9340; | |
342 | val = REG_READ(ah, AR_SREV); | |
343 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); | |
344 | return; | |
345 | } | |
346 | ||
f1dc5600 | 347 | val = REG_READ(ah, AR_SREV) & AR_SREV_ID; |
f078f209 | 348 | |
f1dc5600 S |
349 | if (val == 0xFF) { |
350 | val = REG_READ(ah, AR_SREV); | |
d535a42a S |
351 | ah->hw_version.macVersion = |
352 | (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S; | |
353 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); | |
76ed94be | 354 | |
423e38e8 | 355 | if (AR_SREV_9462(ah)) |
76ed94be MSS |
356 | ah->is_pciexpress = true; |
357 | else | |
358 | ah->is_pciexpress = (val & | |
359 | AR_SREV_TYPE2_HOST_MODE) ? 0 : 1; | |
f1dc5600 S |
360 | } else { |
361 | if (!AR_SREV_9100(ah)) | |
d535a42a | 362 | ah->hw_version.macVersion = MS(val, AR_SREV_VERSION); |
f078f209 | 363 | |
d535a42a | 364 | ah->hw_version.macRev = val & AR_SREV_REVISION; |
f078f209 | 365 | |
d535a42a | 366 | if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE) |
2660b81a | 367 | ah->is_pciexpress = true; |
f1dc5600 | 368 | } |
f078f209 LR |
369 | } |
370 | ||
f1dc5600 S |
371 | /************************************/ |
372 | /* HW Attach, Detach, Init Routines */ | |
373 | /************************************/ | |
374 | ||
cbe61d8a | 375 | static void ath9k_hw_disablepcie(struct ath_hw *ah) |
f078f209 | 376 | { |
040b74f7 | 377 | if (!AR_SREV_5416(ah)) |
f1dc5600 | 378 | return; |
f078f209 | 379 | |
f1dc5600 S |
380 | REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00); |
381 | REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924); | |
382 | REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029); | |
383 | REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824); | |
384 | REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579); | |
385 | REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000); | |
386 | REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40); | |
387 | REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554); | |
388 | REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007); | |
f078f209 | 389 | |
f1dc5600 | 390 | REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000); |
f078f209 LR |
391 | } |
392 | ||
d4930086 SG |
393 | static void ath9k_hw_aspm_init(struct ath_hw *ah) |
394 | { | |
395 | struct ath_common *common = ath9k_hw_common(ah); | |
396 | ||
397 | if (common->bus_ops->aspm_init) | |
398 | common->bus_ops->aspm_init(common); | |
399 | } | |
400 | ||
1f3f0618 | 401 | /* This should work for all families including legacy */ |
cbe61d8a | 402 | static bool ath9k_hw_chip_test(struct ath_hw *ah) |
f078f209 | 403 | { |
c46917bb | 404 | struct ath_common *common = ath9k_hw_common(ah); |
1f3f0618 | 405 | u32 regAddr[2] = { AR_STA_ID0 }; |
f1dc5600 | 406 | u32 regHold[2]; |
07b2fa5a JP |
407 | static const u32 patternData[4] = { |
408 | 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999 | |
409 | }; | |
1f3f0618 | 410 | int i, j, loop_max; |
f078f209 | 411 | |
1f3f0618 SB |
412 | if (!AR_SREV_9300_20_OR_LATER(ah)) { |
413 | loop_max = 2; | |
414 | regAddr[1] = AR_PHY_BASE + (8 << 2); | |
415 | } else | |
416 | loop_max = 1; | |
417 | ||
418 | for (i = 0; i < loop_max; i++) { | |
f1dc5600 S |
419 | u32 addr = regAddr[i]; |
420 | u32 wrData, rdData; | |
f078f209 | 421 | |
f1dc5600 S |
422 | regHold[i] = REG_READ(ah, addr); |
423 | for (j = 0; j < 0x100; j++) { | |
424 | wrData = (j << 16) | j; | |
425 | REG_WRITE(ah, addr, wrData); | |
426 | rdData = REG_READ(ah, addr); | |
427 | if (rdData != wrData) { | |
3800276a JP |
428 | ath_err(common, |
429 | "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", | |
430 | addr, wrData, rdData); | |
f1dc5600 S |
431 | return false; |
432 | } | |
433 | } | |
434 | for (j = 0; j < 4; j++) { | |
435 | wrData = patternData[j]; | |
436 | REG_WRITE(ah, addr, wrData); | |
437 | rdData = REG_READ(ah, addr); | |
438 | if (wrData != rdData) { | |
3800276a JP |
439 | ath_err(common, |
440 | "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", | |
441 | addr, wrData, rdData); | |
f1dc5600 S |
442 | return false; |
443 | } | |
f078f209 | 444 | } |
f1dc5600 | 445 | REG_WRITE(ah, regAddr[i], regHold[i]); |
f078f209 | 446 | } |
f1dc5600 | 447 | udelay(100); |
cbe61d8a | 448 | |
f078f209 LR |
449 | return true; |
450 | } | |
451 | ||
b8b0f377 | 452 | static void ath9k_hw_init_config(struct ath_hw *ah) |
f1dc5600 S |
453 | { |
454 | int i; | |
f078f209 | 455 | |
689e756f FF |
456 | ah->config.dma_beacon_response_time = 1; |
457 | ah->config.sw_beacon_response_time = 6; | |
2660b81a S |
458 | ah->config.additional_swba_backoff = 0; |
459 | ah->config.ack_6mb = 0x0; | |
460 | ah->config.cwm_ignore_extcca = 0; | |
2660b81a | 461 | ah->config.pcie_clock_req = 0; |
2660b81a S |
462 | ah->config.pcie_waen = 0; |
463 | ah->config.analog_shiftreg = 1; | |
03c72518 | 464 | ah->config.enable_ani = true; |
f078f209 | 465 | |
f1dc5600 | 466 | for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { |
2660b81a S |
467 | ah->config.spurchans[i][0] = AR_NO_SPUR; |
468 | ah->config.spurchans[i][1] = AR_NO_SPUR; | |
f078f209 LR |
469 | } |
470 | ||
6f481010 LR |
471 | /* PAPRD needs some more work to be enabled */ |
472 | ah->config.paprd_disable = 1; | |
473 | ||
0ce024cb | 474 | ah->config.rx_intr_mitigation = true; |
6a0ec30a | 475 | ah->config.pcieSerDesWrite = true; |
6158425b LR |
476 | |
477 | /* | |
478 | * We need this for PCI devices only (Cardbus, PCI, miniPCI) | |
479 | * _and_ if on non-uniprocessor systems (Multiprocessor/HT). | |
480 | * This means we use it for all AR5416 devices, and the few | |
481 | * minor PCI AR9280 devices out there. | |
482 | * | |
483 | * Serialization is required because these devices do not handle | |
484 | * well the case of two concurrent reads/writes due to the latency | |
485 | * involved. During one read/write another read/write can be issued | |
486 | * on another CPU while the previous read/write may still be working | |
487 | * on our hardware, if we hit this case the hardware poops in a loop. | |
488 | * We prevent this by serializing reads and writes. | |
489 | * | |
490 | * This issue is not present on PCI-Express devices or pre-AR5416 | |
491 | * devices (legacy, 802.11abg). | |
492 | */ | |
493 | if (num_possible_cpus() > 1) | |
2d6a5e95 | 494 | ah->config.serialize_regmode = SER_REG_MODE_AUTO; |
f078f209 LR |
495 | } |
496 | ||
50aca25b | 497 | static void ath9k_hw_init_defaults(struct ath_hw *ah) |
f078f209 | 498 | { |
608b88cb LR |
499 | struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); |
500 | ||
501 | regulatory->country_code = CTRY_DEFAULT; | |
502 | regulatory->power_limit = MAX_RATE_POWER; | |
608b88cb | 503 | |
d535a42a | 504 | ah->hw_version.magic = AR5416_MAGIC; |
d535a42a | 505 | ah->hw_version.subvendorid = 0; |
f078f209 | 506 | |
2660b81a | 507 | ah->atim_window = 0; |
16f2411f FF |
508 | ah->sta_id1_defaults = |
509 | AR_STA_ID1_CRPT_MIC_ENABLE | | |
510 | AR_STA_ID1_MCAST_KSRCH; | |
f171760c FF |
511 | if (AR_SREV_9100(ah)) |
512 | ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX; | |
e3f2acc7 | 513 | ah->slottime = ATH9K_SLOT_TIME_9; |
2660b81a | 514 | ah->globaltxtimeout = (u32) -1; |
cbdec975 | 515 | ah->power_mode = ATH9K_PM_UNDEFINED; |
8efa7a81 | 516 | ah->htc_reset_init = true; |
f078f209 LR |
517 | } |
518 | ||
cbe61d8a | 519 | static int ath9k_hw_init_macaddr(struct ath_hw *ah) |
f078f209 | 520 | { |
1510718d | 521 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 LR |
522 | u32 sum; |
523 | int i; | |
524 | u16 eeval; | |
07b2fa5a | 525 | static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW }; |
f078f209 LR |
526 | |
527 | sum = 0; | |
528 | for (i = 0; i < 3; i++) { | |
49101676 | 529 | eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]); |
f078f209 | 530 | sum += eeval; |
1510718d LR |
531 | common->macaddr[2 * i] = eeval >> 8; |
532 | common->macaddr[2 * i + 1] = eeval & 0xff; | |
f078f209 | 533 | } |
d8baa939 | 534 | if (sum == 0 || sum == 0xffff * 3) |
f078f209 | 535 | return -EADDRNOTAVAIL; |
f078f209 LR |
536 | |
537 | return 0; | |
538 | } | |
539 | ||
f637cfd6 | 540 | static int ath9k_hw_post_init(struct ath_hw *ah) |
f078f209 | 541 | { |
6cae913d | 542 | struct ath_common *common = ath9k_hw_common(ah); |
f1dc5600 | 543 | int ecode; |
f078f209 | 544 | |
6cae913d | 545 | if (common->bus_ops->ath_bus_type != ATH_USB) { |
527d485f S |
546 | if (!ath9k_hw_chip_test(ah)) |
547 | return -ENODEV; | |
548 | } | |
f078f209 | 549 | |
ebd5a14a LR |
550 | if (!AR_SREV_9300_20_OR_LATER(ah)) { |
551 | ecode = ar9002_hw_rf_claim(ah); | |
552 | if (ecode != 0) | |
553 | return ecode; | |
554 | } | |
f078f209 | 555 | |
f637cfd6 | 556 | ecode = ath9k_hw_eeprom_init(ah); |
f1dc5600 S |
557 | if (ecode != 0) |
558 | return ecode; | |
7d01b221 | 559 | |
d2182b69 | 560 | ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n", |
226afe68 JP |
561 | ah->eep_ops->get_eeprom_ver(ah), |
562 | ah->eep_ops->get_eeprom_rev(ah)); | |
7d01b221 | 563 | |
8fe65368 LR |
564 | ecode = ath9k_hw_rf_alloc_ext_banks(ah); |
565 | if (ecode) { | |
3800276a JP |
566 | ath_err(ath9k_hw_common(ah), |
567 | "Failed allocating banks for external radio\n"); | |
48a7c3df | 568 | ath9k_hw_rf_free_ext_banks(ah); |
8fe65368 | 569 | return ecode; |
574d6b12 | 570 | } |
f078f209 | 571 | |
4279425c | 572 | if (ah->config.enable_ani) { |
f1dc5600 | 573 | ath9k_hw_ani_setup(ah); |
f637cfd6 | 574 | ath9k_hw_ani_init(ah); |
f078f209 LR |
575 | } |
576 | ||
f078f209 LR |
577 | return 0; |
578 | } | |
579 | ||
8525f280 | 580 | static void ath9k_hw_attach_ops(struct ath_hw *ah) |
ee2bb460 | 581 | { |
8525f280 LR |
582 | if (AR_SREV_9300_20_OR_LATER(ah)) |
583 | ar9003_hw_attach_ops(ah); | |
584 | else | |
585 | ar9002_hw_attach_ops(ah); | |
aa4058ae LR |
586 | } |
587 | ||
d70357d5 LR |
588 | /* Called for all hardware families */ |
589 | static int __ath9k_hw_init(struct ath_hw *ah) | |
aa4058ae | 590 | { |
c46917bb | 591 | struct ath_common *common = ath9k_hw_common(ah); |
95fafca2 | 592 | int r = 0; |
aa4058ae | 593 | |
ac45c12d SB |
594 | ath9k_hw_read_revisions(ah); |
595 | ||
0a8d7cb0 SB |
596 | /* |
597 | * Read back AR_WA into a permanent copy and set bits 14 and 17. | |
598 | * We need to do this to avoid RMW of this register. We cannot | |
599 | * read the reg when chip is asleep. | |
600 | */ | |
601 | ah->WARegVal = REG_READ(ah, AR_WA); | |
602 | ah->WARegVal |= (AR_WA_D3_L1_DISABLE | | |
603 | AR_WA_ASPM_TIMER_BASED_DISABLE); | |
604 | ||
aa4058ae | 605 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) { |
3800276a | 606 | ath_err(common, "Couldn't reset chip\n"); |
95fafca2 | 607 | return -EIO; |
aa4058ae LR |
608 | } |
609 | ||
423e38e8 | 610 | if (AR_SREV_9462(ah)) |
eec353c5 RM |
611 | ah->WARegVal &= ~AR_WA_D3_L1_DISABLE; |
612 | ||
bab1f62e LR |
613 | ath9k_hw_init_defaults(ah); |
614 | ath9k_hw_init_config(ah); | |
615 | ||
8525f280 | 616 | ath9k_hw_attach_ops(ah); |
d70357d5 | 617 | |
9ecdef4b | 618 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) { |
3800276a | 619 | ath_err(common, "Couldn't wakeup chip\n"); |
95fafca2 | 620 | return -EIO; |
aa4058ae LR |
621 | } |
622 | ||
f3eef645 | 623 | if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) { |
aa4058ae | 624 | if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI || |
7508b657 | 625 | ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) && |
4c85ab11 | 626 | !ah->is_pciexpress)) { |
aa4058ae LR |
627 | ah->config.serialize_regmode = |
628 | SER_REG_MODE_ON; | |
629 | } else { | |
630 | ah->config.serialize_regmode = | |
631 | SER_REG_MODE_OFF; | |
632 | } | |
633 | } | |
634 | ||
d2182b69 | 635 | ath_dbg(common, RESET, "serialize_regmode is %d\n", |
aa4058ae LR |
636 | ah->config.serialize_regmode); |
637 | ||
f4709fdf LR |
638 | if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) |
639 | ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1; | |
640 | else | |
641 | ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD; | |
642 | ||
6da5a720 FF |
643 | switch (ah->hw_version.macVersion) { |
644 | case AR_SREV_VERSION_5416_PCI: | |
645 | case AR_SREV_VERSION_5416_PCIE: | |
646 | case AR_SREV_VERSION_9160: | |
647 | case AR_SREV_VERSION_9100: | |
648 | case AR_SREV_VERSION_9280: | |
649 | case AR_SREV_VERSION_9285: | |
650 | case AR_SREV_VERSION_9287: | |
651 | case AR_SREV_VERSION_9271: | |
652 | case AR_SREV_VERSION_9300: | |
2c8e5937 | 653 | case AR_SREV_VERSION_9330: |
6da5a720 | 654 | case AR_SREV_VERSION_9485: |
bca04689 | 655 | case AR_SREV_VERSION_9340: |
423e38e8 | 656 | case AR_SREV_VERSION_9462: |
6da5a720 FF |
657 | break; |
658 | default: | |
3800276a JP |
659 | ath_err(common, |
660 | "Mac Chip Rev 0x%02x.%x is not supported by this driver\n", | |
661 | ah->hw_version.macVersion, ah->hw_version.macRev); | |
95fafca2 | 662 | return -EOPNOTSUPP; |
aa4058ae LR |
663 | } |
664 | ||
2c8e5937 GJ |
665 | if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) || |
666 | AR_SREV_9330(ah)) | |
d7e7d229 LR |
667 | ah->is_pciexpress = false; |
668 | ||
aa4058ae | 669 | ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID); |
aa4058ae LR |
670 | ath9k_hw_init_cal_settings(ah); |
671 | ||
672 | ah->ani_function = ATH9K_ANI_ALL; | |
7a37081e | 673 | if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
aa4058ae | 674 | ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL; |
e36b27af LR |
675 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
676 | ah->ani_function &= ~ATH9K_ANI_MRC_CCK; | |
aa4058ae | 677 | |
4f17c48e NM |
678 | /* disable ANI for 9340 */ |
679 | if (AR_SREV_9340(ah)) | |
4279425c NM |
680 | ah->config.enable_ani = false; |
681 | ||
aa4058ae LR |
682 | ath9k_hw_init_mode_regs(ah); |
683 | ||
69ce674b | 684 | if (!ah->is_pciexpress) |
aa4058ae LR |
685 | ath9k_hw_disablepcie(ah); |
686 | ||
f637cfd6 | 687 | r = ath9k_hw_post_init(ah); |
aa4058ae | 688 | if (r) |
95fafca2 | 689 | return r; |
aa4058ae LR |
690 | |
691 | ath9k_hw_init_mode_gain_regs(ah); | |
a9a29ce6 GJ |
692 | r = ath9k_hw_fill_cap_info(ah); |
693 | if (r) | |
694 | return r; | |
695 | ||
69ce674b SG |
696 | if (ah->is_pciexpress) |
697 | ath9k_hw_aspm_init(ah); | |
698 | ||
4f3acf81 LR |
699 | r = ath9k_hw_init_macaddr(ah); |
700 | if (r) { | |
3800276a | 701 | ath_err(common, "Failed to initialize MAC address\n"); |
95fafca2 | 702 | return r; |
f078f209 LR |
703 | } |
704 | ||
d7e7d229 | 705 | if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) |
2660b81a | 706 | ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S); |
f1dc5600 | 707 | else |
2660b81a | 708 | ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S); |
f078f209 | 709 | |
88e641df GJ |
710 | if (AR_SREV_9330(ah)) |
711 | ah->bb_watchdog_timeout_ms = 85; | |
712 | else | |
713 | ah->bb_watchdog_timeout_ms = 25; | |
f078f209 | 714 | |
211f5859 LR |
715 | common->state = ATH_HW_INITIALIZED; |
716 | ||
4f3acf81 | 717 | return 0; |
f078f209 LR |
718 | } |
719 | ||
d70357d5 | 720 | int ath9k_hw_init(struct ath_hw *ah) |
f078f209 | 721 | { |
d70357d5 LR |
722 | int ret; |
723 | struct ath_common *common = ath9k_hw_common(ah); | |
f078f209 | 724 | |
d70357d5 LR |
725 | /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */ |
726 | switch (ah->hw_version.devid) { | |
727 | case AR5416_DEVID_PCI: | |
728 | case AR5416_DEVID_PCIE: | |
729 | case AR5416_AR9100_DEVID: | |
730 | case AR9160_DEVID_PCI: | |
731 | case AR9280_DEVID_PCI: | |
732 | case AR9280_DEVID_PCIE: | |
733 | case AR9285_DEVID_PCIE: | |
db3cc53a SB |
734 | case AR9287_DEVID_PCI: |
735 | case AR9287_DEVID_PCIE: | |
d70357d5 | 736 | case AR2427_DEVID_PCIE: |
db3cc53a | 737 | case AR9300_DEVID_PCIE: |
3050c914 | 738 | case AR9300_DEVID_AR9485_PCIE: |
999a7a88 | 739 | case AR9300_DEVID_AR9330: |
bca04689 | 740 | case AR9300_DEVID_AR9340: |
5a63ef0f | 741 | case AR9300_DEVID_AR9580: |
423e38e8 | 742 | case AR9300_DEVID_AR9462: |
d70357d5 LR |
743 | break; |
744 | default: | |
745 | if (common->bus_ops->ath_bus_type == ATH_USB) | |
746 | break; | |
3800276a JP |
747 | ath_err(common, "Hardware device ID 0x%04x not supported\n", |
748 | ah->hw_version.devid); | |
d70357d5 LR |
749 | return -EOPNOTSUPP; |
750 | } | |
f078f209 | 751 | |
d70357d5 LR |
752 | ret = __ath9k_hw_init(ah); |
753 | if (ret) { | |
3800276a JP |
754 | ath_err(common, |
755 | "Unable to initialize hardware; initialization status: %d\n", | |
756 | ret); | |
d70357d5 LR |
757 | return ret; |
758 | } | |
f078f209 | 759 | |
d70357d5 | 760 | return 0; |
f078f209 | 761 | } |
d70357d5 | 762 | EXPORT_SYMBOL(ath9k_hw_init); |
f078f209 | 763 | |
cbe61d8a | 764 | static void ath9k_hw_init_qos(struct ath_hw *ah) |
f078f209 | 765 | { |
7d0d0df0 S |
766 | ENABLE_REGWRITE_BUFFER(ah); |
767 | ||
f1dc5600 S |
768 | REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa); |
769 | REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210); | |
f078f209 | 770 | |
f1dc5600 S |
771 | REG_WRITE(ah, AR_QOS_NO_ACK, |
772 | SM(2, AR_QOS_NO_ACK_TWO_BIT) | | |
773 | SM(5, AR_QOS_NO_ACK_BIT_OFF) | | |
774 | SM(0, AR_QOS_NO_ACK_BYTE_OFF)); | |
775 | ||
776 | REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL); | |
777 | REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF); | |
778 | REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF); | |
779 | REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF); | |
780 | REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF); | |
7d0d0df0 S |
781 | |
782 | REGWRITE_BUFFER_FLUSH(ah); | |
f078f209 LR |
783 | } |
784 | ||
b84628eb | 785 | u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah) |
b1415819 | 786 | { |
f18e3c6b MSS |
787 | struct ath_common *common = ath9k_hw_common(ah); |
788 | int i = 0; | |
789 | ||
ca7a4deb FF |
790 | REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); |
791 | udelay(100); | |
792 | REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); | |
b1415819 | 793 | |
f18e3c6b MSS |
794 | while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) { |
795 | ||
ca7a4deb | 796 | udelay(100); |
b1415819 | 797 | |
f18e3c6b MSS |
798 | if (WARN_ON_ONCE(i >= 100)) { |
799 | ath_err(common, "PLL4 meaurement not done\n"); | |
800 | break; | |
801 | } | |
802 | ||
803 | i++; | |
804 | } | |
805 | ||
ca7a4deb | 806 | return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3; |
b1415819 VN |
807 | } |
808 | EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc); | |
809 | ||
cbe61d8a | 810 | static void ath9k_hw_init_pll(struct ath_hw *ah, |
f1dc5600 | 811 | struct ath9k_channel *chan) |
f078f209 | 812 | { |
d09b17f7 VT |
813 | u32 pll; |
814 | ||
22983c30 | 815 | if (AR_SREV_9485(ah)) { |
22983c30 | 816 | |
3dfd7f60 VT |
817 | /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */ |
818 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
819 | AR_CH0_BB_DPLL2_PLL_PWD, 0x1); | |
820 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
821 | AR_CH0_DPLL2_KD, 0x40); | |
822 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
823 | AR_CH0_DPLL2_KI, 0x4); | |
22983c30 | 824 | |
3dfd7f60 VT |
825 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, |
826 | AR_CH0_BB_DPLL1_REFDIV, 0x5); | |
827 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, | |
828 | AR_CH0_BB_DPLL1_NINI, 0x58); | |
829 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, | |
830 | AR_CH0_BB_DPLL1_NFRAC, 0x0); | |
22983c30 VN |
831 | |
832 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
3dfd7f60 VT |
833 | AR_CH0_BB_DPLL2_OUTDIV, 0x1); |
834 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
835 | AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1); | |
22983c30 | 836 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
3dfd7f60 | 837 | AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1); |
22983c30 | 838 | |
3dfd7f60 | 839 | /* program BB PLL phase_shift to 0x6 */ |
22983c30 | 840 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3, |
3dfd7f60 VT |
841 | AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6); |
842 | ||
843 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, | |
844 | AR_CH0_BB_DPLL2_PLL_PWD, 0x0); | |
75e03512 | 845 | udelay(1000); |
a5415d62 GJ |
846 | } else if (AR_SREV_9330(ah)) { |
847 | u32 ddr_dpll2, pll_control2, kd; | |
848 | ||
849 | if (ah->is_clk_25mhz) { | |
850 | ddr_dpll2 = 0x18e82f01; | |
851 | pll_control2 = 0xe04a3d; | |
852 | kd = 0x1d; | |
853 | } else { | |
854 | ddr_dpll2 = 0x19e82f01; | |
855 | pll_control2 = 0x886666; | |
856 | kd = 0x3d; | |
857 | } | |
858 | ||
859 | /* program DDR PLL ki and kd value */ | |
860 | REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2); | |
861 | ||
862 | /* program DDR PLL phase_shift */ | |
863 | REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3, | |
864 | AR_CH0_DPLL3_PHASE_SHIFT, 0x1); | |
865 | ||
866 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c); | |
867 | udelay(1000); | |
868 | ||
869 | /* program refdiv, nint, frac to RTC register */ | |
870 | REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2); | |
871 | ||
872 | /* program BB PLL kd and ki value */ | |
873 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd); | |
874 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06); | |
875 | ||
876 | /* program BB PLL phase_shift */ | |
877 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3, | |
878 | AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1); | |
0b488ac6 VT |
879 | } else if (AR_SREV_9340(ah)) { |
880 | u32 regval, pll2_divint, pll2_divfrac, refdiv; | |
881 | ||
882 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c); | |
883 | udelay(1000); | |
884 | ||
885 | REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16); | |
886 | udelay(100); | |
887 | ||
888 | if (ah->is_clk_25mhz) { | |
889 | pll2_divint = 0x54; | |
890 | pll2_divfrac = 0x1eb85; | |
891 | refdiv = 3; | |
892 | } else { | |
893 | pll2_divint = 88; | |
894 | pll2_divfrac = 0; | |
895 | refdiv = 5; | |
896 | } | |
897 | ||
898 | regval = REG_READ(ah, AR_PHY_PLL_MODE); | |
899 | regval |= (0x1 << 16); | |
900 | REG_WRITE(ah, AR_PHY_PLL_MODE, regval); | |
901 | udelay(100); | |
902 | ||
903 | REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) | | |
904 | (pll2_divint << 18) | pll2_divfrac); | |
905 | udelay(100); | |
906 | ||
907 | regval = REG_READ(ah, AR_PHY_PLL_MODE); | |
908 | regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) | | |
909 | (0x4 << 26) | (0x18 << 19); | |
910 | REG_WRITE(ah, AR_PHY_PLL_MODE, regval); | |
911 | REG_WRITE(ah, AR_PHY_PLL_MODE, | |
912 | REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff); | |
913 | udelay(1000); | |
22983c30 | 914 | } |
d09b17f7 VT |
915 | |
916 | pll = ath9k_hw_compute_pll_control(ah, chan); | |
f078f209 | 917 | |
d03a66c1 | 918 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll); |
f078f209 | 919 | |
a5415d62 | 920 | if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah)) |
3dfd7f60 VT |
921 | udelay(1000); |
922 | ||
c75724d1 LR |
923 | /* Switch the core clock for ar9271 to 117Mhz */ |
924 | if (AR_SREV_9271(ah)) { | |
25e2ab17 S |
925 | udelay(500); |
926 | REG_WRITE(ah, 0x50040, 0x304); | |
c75724d1 LR |
927 | } |
928 | ||
f1dc5600 S |
929 | udelay(RTC_PLL_SETTLE_DELAY); |
930 | ||
931 | REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK); | |
0b488ac6 VT |
932 | |
933 | if (AR_SREV_9340(ah)) { | |
934 | if (ah->is_clk_25mhz) { | |
935 | REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1); | |
936 | REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7); | |
937 | REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae); | |
938 | } else { | |
939 | REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1); | |
940 | REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400); | |
941 | REG_WRITE(ah, AR_SLP32_INC, 0x0001e800); | |
942 | } | |
943 | udelay(100); | |
944 | } | |
f078f209 LR |
945 | } |
946 | ||
cbe61d8a | 947 | static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, |
d97809db | 948 | enum nl80211_iftype opmode) |
f078f209 | 949 | { |
79d1d2b8 | 950 | u32 sync_default = AR_INTR_SYNC_DEFAULT; |
152d530d | 951 | u32 imr_reg = AR_IMR_TXERR | |
f1dc5600 S |
952 | AR_IMR_TXURN | |
953 | AR_IMR_RXERR | | |
954 | AR_IMR_RXORN | | |
955 | AR_IMR_BCNMISC; | |
f078f209 | 956 | |
79d1d2b8 VT |
957 | if (AR_SREV_9340(ah)) |
958 | sync_default &= ~AR_INTR_SYNC_HOST1_FATAL; | |
959 | ||
66860240 VT |
960 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
961 | imr_reg |= AR_IMR_RXOK_HP; | |
962 | if (ah->config.rx_intr_mitigation) | |
963 | imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR; | |
964 | else | |
965 | imr_reg |= AR_IMR_RXOK_LP; | |
f078f209 | 966 | |
66860240 VT |
967 | } else { |
968 | if (ah->config.rx_intr_mitigation) | |
969 | imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR; | |
970 | else | |
971 | imr_reg |= AR_IMR_RXOK; | |
972 | } | |
f078f209 | 973 | |
66860240 VT |
974 | if (ah->config.tx_intr_mitigation) |
975 | imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR; | |
976 | else | |
977 | imr_reg |= AR_IMR_TXOK; | |
f078f209 | 978 | |
d97809db | 979 | if (opmode == NL80211_IFTYPE_AP) |
152d530d | 980 | imr_reg |= AR_IMR_MIB; |
f078f209 | 981 | |
7d0d0df0 S |
982 | ENABLE_REGWRITE_BUFFER(ah); |
983 | ||
152d530d | 984 | REG_WRITE(ah, AR_IMR, imr_reg); |
74bad5cb PR |
985 | ah->imrs2_reg |= AR_IMR_S2_GTT; |
986 | REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg); | |
f078f209 | 987 | |
f1dc5600 S |
988 | if (!AR_SREV_9100(ah)) { |
989 | REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF); | |
79d1d2b8 | 990 | REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default); |
f1dc5600 S |
991 | REG_WRITE(ah, AR_INTR_SYNC_MASK, 0); |
992 | } | |
66860240 | 993 | |
7d0d0df0 | 994 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 995 | |
66860240 VT |
996 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
997 | REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0); | |
998 | REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0); | |
999 | REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0); | |
1000 | REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0); | |
1001 | } | |
f078f209 LR |
1002 | } |
1003 | ||
b6ba41bb FF |
1004 | static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us) |
1005 | { | |
1006 | u32 val = ath9k_hw_mac_to_clks(ah, us - 2); | |
1007 | val = min(val, (u32) 0xFFFF); | |
1008 | REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val); | |
1009 | } | |
1010 | ||
0005baf4 | 1011 | static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us) |
f078f209 | 1012 | { |
0005baf4 FF |
1013 | u32 val = ath9k_hw_mac_to_clks(ah, us); |
1014 | val = min(val, (u32) 0xFFFF); | |
1015 | REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val); | |
f078f209 LR |
1016 | } |
1017 | ||
0005baf4 | 1018 | static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us) |
f078f209 | 1019 | { |
0005baf4 FF |
1020 | u32 val = ath9k_hw_mac_to_clks(ah, us); |
1021 | val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK)); | |
1022 | REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val); | |
1023 | } | |
1024 | ||
1025 | static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us) | |
1026 | { | |
1027 | u32 val = ath9k_hw_mac_to_clks(ah, us); | |
1028 | val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS)); | |
1029 | REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val); | |
f078f209 | 1030 | } |
f1dc5600 | 1031 | |
cbe61d8a | 1032 | static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu) |
f078f209 | 1033 | { |
f078f209 | 1034 | if (tu > 0xFFFF) { |
d2182b69 JP |
1035 | ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n", |
1036 | tu); | |
2660b81a | 1037 | ah->globaltxtimeout = (u32) -1; |
f078f209 LR |
1038 | return false; |
1039 | } else { | |
1040 | REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu); | |
2660b81a | 1041 | ah->globaltxtimeout = tu; |
f078f209 LR |
1042 | return true; |
1043 | } | |
1044 | } | |
1045 | ||
0005baf4 | 1046 | void ath9k_hw_init_global_settings(struct ath_hw *ah) |
f078f209 | 1047 | { |
b6ba41bb FF |
1048 | struct ath_common *common = ath9k_hw_common(ah); |
1049 | struct ieee80211_conf *conf = &common->hw->conf; | |
1050 | const struct ath9k_channel *chan = ah->curchan; | |
e115b7ec | 1051 | int acktimeout, ctstimeout, ack_offset = 0; |
e239d859 | 1052 | int slottime; |
0005baf4 | 1053 | int sifstime; |
b6ba41bb FF |
1054 | int rx_lat = 0, tx_lat = 0, eifs = 0; |
1055 | u32 reg; | |
0005baf4 | 1056 | |
d2182b69 | 1057 | ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n", |
226afe68 | 1058 | ah->misc_mode); |
f078f209 | 1059 | |
b6ba41bb FF |
1060 | if (!chan) |
1061 | return; | |
1062 | ||
2660b81a | 1063 | if (ah->misc_mode != 0) |
ca7a4deb | 1064 | REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode); |
0005baf4 | 1065 | |
81a91d57 RM |
1066 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) |
1067 | rx_lat = 41; | |
1068 | else | |
1069 | rx_lat = 37; | |
b6ba41bb FF |
1070 | tx_lat = 54; |
1071 | ||
e88e4861 FF |
1072 | if (IS_CHAN_5GHZ(chan)) |
1073 | sifstime = 16; | |
1074 | else | |
1075 | sifstime = 10; | |
1076 | ||
b6ba41bb FF |
1077 | if (IS_CHAN_HALF_RATE(chan)) { |
1078 | eifs = 175; | |
1079 | rx_lat *= 2; | |
1080 | tx_lat *= 2; | |
1081 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) | |
1082 | tx_lat += 11; | |
1083 | ||
e88e4861 | 1084 | sifstime *= 2; |
e115b7ec | 1085 | ack_offset = 16; |
b6ba41bb | 1086 | slottime = 13; |
b6ba41bb FF |
1087 | } else if (IS_CHAN_QUARTER_RATE(chan)) { |
1088 | eifs = 340; | |
81a91d57 | 1089 | rx_lat = (rx_lat * 4) - 1; |
b6ba41bb FF |
1090 | tx_lat *= 4; |
1091 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) | |
1092 | tx_lat += 22; | |
1093 | ||
e88e4861 | 1094 | sifstime *= 4; |
e115b7ec | 1095 | ack_offset = 32; |
b6ba41bb | 1096 | slottime = 21; |
b6ba41bb | 1097 | } else { |
a7be039d RM |
1098 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { |
1099 | eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO; | |
1100 | reg = AR_USEC_ASYNC_FIFO; | |
1101 | } else { | |
1102 | eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/ | |
1103 | common->clockrate; | |
1104 | reg = REG_READ(ah, AR_USEC); | |
1105 | } | |
b6ba41bb FF |
1106 | rx_lat = MS(reg, AR_USEC_RX_LAT); |
1107 | tx_lat = MS(reg, AR_USEC_TX_LAT); | |
1108 | ||
1109 | slottime = ah->slottime; | |
b6ba41bb | 1110 | } |
0005baf4 | 1111 | |
e239d859 | 1112 | /* As defined by IEEE 802.11-2007 17.3.8.6 */ |
e115b7ec | 1113 | acktimeout = slottime + sifstime + 3 * ah->coverage_class + ack_offset; |
adb5066a | 1114 | ctstimeout = acktimeout; |
42c4568a FF |
1115 | |
1116 | /* | |
1117 | * Workaround for early ACK timeouts, add an offset to match the | |
55a2bb4a | 1118 | * initval's 64us ack timeout value. Use 48us for the CTS timeout. |
42c4568a FF |
1119 | * This was initially only meant to work around an issue with delayed |
1120 | * BA frames in some implementations, but it has been found to fix ACK | |
1121 | * timeout issues in other cases as well. | |
1122 | */ | |
e115b7ec FF |
1123 | if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ && |
1124 | !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) { | |
42c4568a | 1125 | acktimeout += 64 - sifstime - ah->slottime; |
55a2bb4a FF |
1126 | ctstimeout += 48 - sifstime - ah->slottime; |
1127 | } | |
1128 | ||
42c4568a | 1129 | |
b6ba41bb FF |
1130 | ath9k_hw_set_sifs_time(ah, sifstime); |
1131 | ath9k_hw_setslottime(ah, slottime); | |
0005baf4 | 1132 | ath9k_hw_set_ack_timeout(ah, acktimeout); |
adb5066a | 1133 | ath9k_hw_set_cts_timeout(ah, ctstimeout); |
2660b81a S |
1134 | if (ah->globaltxtimeout != (u32) -1) |
1135 | ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout); | |
b6ba41bb FF |
1136 | |
1137 | REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs)); | |
1138 | REG_RMW(ah, AR_USEC, | |
1139 | (common->clockrate - 1) | | |
1140 | SM(rx_lat, AR_USEC_RX_LAT) | | |
1141 | SM(tx_lat, AR_USEC_TX_LAT), | |
1142 | AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC); | |
1143 | ||
f1dc5600 | 1144 | } |
0005baf4 | 1145 | EXPORT_SYMBOL(ath9k_hw_init_global_settings); |
f1dc5600 | 1146 | |
285f2dda | 1147 | void ath9k_hw_deinit(struct ath_hw *ah) |
f1dc5600 | 1148 | { |
211f5859 LR |
1149 | struct ath_common *common = ath9k_hw_common(ah); |
1150 | ||
736b3a27 | 1151 | if (common->state < ATH_HW_INITIALIZED) |
211f5859 LR |
1152 | goto free_hw; |
1153 | ||
9ecdef4b | 1154 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
211f5859 LR |
1155 | |
1156 | free_hw: | |
8fe65368 | 1157 | ath9k_hw_rf_free_ext_banks(ah); |
f1dc5600 | 1158 | } |
285f2dda | 1159 | EXPORT_SYMBOL(ath9k_hw_deinit); |
f1dc5600 | 1160 | |
f1dc5600 S |
1161 | /*******/ |
1162 | /* INI */ | |
1163 | /*******/ | |
1164 | ||
8fe65368 | 1165 | u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan) |
3a702e49 BC |
1166 | { |
1167 | u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band); | |
1168 | ||
1169 | if (IS_CHAN_B(chan)) | |
1170 | ctl |= CTL_11B; | |
1171 | else if (IS_CHAN_G(chan)) | |
1172 | ctl |= CTL_11G; | |
1173 | else | |
1174 | ctl |= CTL_11A; | |
1175 | ||
1176 | return ctl; | |
1177 | } | |
1178 | ||
f1dc5600 S |
1179 | /****************************************/ |
1180 | /* Reset and Channel Switching Routines */ | |
1181 | /****************************************/ | |
f1dc5600 | 1182 | |
cbe61d8a | 1183 | static inline void ath9k_hw_set_dma(struct ath_hw *ah) |
f1dc5600 | 1184 | { |
57b32227 | 1185 | struct ath_common *common = ath9k_hw_common(ah); |
f1dc5600 | 1186 | |
7d0d0df0 S |
1187 | ENABLE_REGWRITE_BUFFER(ah); |
1188 | ||
d7e7d229 LR |
1189 | /* |
1190 | * set AHB_MODE not to do cacheline prefetches | |
1191 | */ | |
ca7a4deb FF |
1192 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
1193 | REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN); | |
f1dc5600 | 1194 | |
d7e7d229 LR |
1195 | /* |
1196 | * let mac dma reads be in 128 byte chunks | |
1197 | */ | |
ca7a4deb | 1198 | REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK); |
f1dc5600 | 1199 | |
7d0d0df0 | 1200 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1201 | |
d7e7d229 LR |
1202 | /* |
1203 | * Restore TX Trigger Level to its pre-reset value. | |
1204 | * The initial value depends on whether aggregation is enabled, and is | |
1205 | * adjusted whenever underruns are detected. | |
1206 | */ | |
57b32227 FF |
1207 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
1208 | REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level); | |
f1dc5600 | 1209 | |
7d0d0df0 | 1210 | ENABLE_REGWRITE_BUFFER(ah); |
f1dc5600 | 1211 | |
d7e7d229 LR |
1212 | /* |
1213 | * let mac dma writes be in 128 byte chunks | |
1214 | */ | |
ca7a4deb | 1215 | REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK); |
f1dc5600 | 1216 | |
d7e7d229 LR |
1217 | /* |
1218 | * Setup receive FIFO threshold to hold off TX activities | |
1219 | */ | |
f1dc5600 S |
1220 | REG_WRITE(ah, AR_RXFIFO_CFG, 0x200); |
1221 | ||
57b32227 FF |
1222 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
1223 | REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1); | |
1224 | REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1); | |
1225 | ||
1226 | ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize - | |
1227 | ah->caps.rx_status_len); | |
1228 | } | |
1229 | ||
d7e7d229 LR |
1230 | /* |
1231 | * reduce the number of usable entries in PCU TXBUF to avoid | |
1232 | * wrap around issues. | |
1233 | */ | |
f1dc5600 | 1234 | if (AR_SREV_9285(ah)) { |
d7e7d229 LR |
1235 | /* For AR9285 the number of Fifos are reduced to half. |
1236 | * So set the usable tx buf size also to half to | |
1237 | * avoid data/delimiter underruns | |
1238 | */ | |
f1dc5600 S |
1239 | REG_WRITE(ah, AR_PCU_TXBUF_CTRL, |
1240 | AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE); | |
d7e7d229 | 1241 | } else if (!AR_SREV_9271(ah)) { |
f1dc5600 S |
1242 | REG_WRITE(ah, AR_PCU_TXBUF_CTRL, |
1243 | AR_PCU_TXBUF_CTRL_USABLE_SIZE); | |
1244 | } | |
744d4025 | 1245 | |
7d0d0df0 | 1246 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1247 | |
744d4025 VT |
1248 | if (AR_SREV_9300_20_OR_LATER(ah)) |
1249 | ath9k_hw_reset_txstatus_ring(ah); | |
f1dc5600 S |
1250 | } |
1251 | ||
cbe61d8a | 1252 | static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode) |
f1dc5600 | 1253 | { |
ca7a4deb FF |
1254 | u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC; |
1255 | u32 set = AR_STA_ID1_KSRCH_MODE; | |
f1dc5600 | 1256 | |
f1dc5600 | 1257 | switch (opmode) { |
d97809db | 1258 | case NL80211_IFTYPE_ADHOC: |
9cb5412b | 1259 | case NL80211_IFTYPE_MESH_POINT: |
ca7a4deb | 1260 | set |= AR_STA_ID1_ADHOC; |
f1dc5600 | 1261 | REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); |
f078f209 | 1262 | break; |
ca7a4deb FF |
1263 | case NL80211_IFTYPE_AP: |
1264 | set |= AR_STA_ID1_STA_AP; | |
1265 | /* fall through */ | |
d97809db | 1266 | case NL80211_IFTYPE_STATION: |
ca7a4deb | 1267 | REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); |
f078f209 | 1268 | break; |
5f841b41 | 1269 | default: |
ca7a4deb FF |
1270 | if (!ah->is_monitoring) |
1271 | set = 0; | |
5f841b41 | 1272 | break; |
f1dc5600 | 1273 | } |
ca7a4deb | 1274 | REG_RMW(ah, AR_STA_ID1, set, mask); |
f1dc5600 S |
1275 | } |
1276 | ||
8fe65368 LR |
1277 | void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled, |
1278 | u32 *coef_mantissa, u32 *coef_exponent) | |
f1dc5600 S |
1279 | { |
1280 | u32 coef_exp, coef_man; | |
1281 | ||
1282 | for (coef_exp = 31; coef_exp > 0; coef_exp--) | |
1283 | if ((coef_scaled >> coef_exp) & 0x1) | |
1284 | break; | |
1285 | ||
1286 | coef_exp = 14 - (coef_exp - COEF_SCALE_S); | |
1287 | ||
1288 | coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1)); | |
1289 | ||
1290 | *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp); | |
1291 | *coef_exponent = coef_exp - 16; | |
1292 | } | |
1293 | ||
cbe61d8a | 1294 | static bool ath9k_hw_set_reset(struct ath_hw *ah, int type) |
f1dc5600 S |
1295 | { |
1296 | u32 rst_flags; | |
1297 | u32 tmpReg; | |
1298 | ||
70768496 | 1299 | if (AR_SREV_9100(ah)) { |
ca7a4deb FF |
1300 | REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK, |
1301 | AR_RTC_DERIVED_CLK_PERIOD, 1); | |
70768496 S |
1302 | (void)REG_READ(ah, AR_RTC_DERIVED_CLK); |
1303 | } | |
1304 | ||
7d0d0df0 S |
1305 | ENABLE_REGWRITE_BUFFER(ah); |
1306 | ||
9a658d2b LR |
1307 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
1308 | REG_WRITE(ah, AR_WA, ah->WARegVal); | |
1309 | udelay(10); | |
1310 | } | |
1311 | ||
f1dc5600 S |
1312 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN | |
1313 | AR_RTC_FORCE_WAKE_ON_INT); | |
1314 | ||
1315 | if (AR_SREV_9100(ah)) { | |
1316 | rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD | | |
1317 | AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET; | |
1318 | } else { | |
1319 | tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE); | |
1320 | if (tmpReg & | |
1321 | (AR_INTR_SYNC_LOCAL_TIMEOUT | | |
1322 | AR_INTR_SYNC_RADM_CPL_TIMEOUT)) { | |
42d5bc3f | 1323 | u32 val; |
f1dc5600 | 1324 | REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0); |
42d5bc3f LR |
1325 | |
1326 | val = AR_RC_HOSTIF; | |
1327 | if (!AR_SREV_9300_20_OR_LATER(ah)) | |
1328 | val |= AR_RC_AHB; | |
1329 | REG_WRITE(ah, AR_RC, val); | |
1330 | ||
1331 | } else if (!AR_SREV_9300_20_OR_LATER(ah)) | |
f1dc5600 | 1332 | REG_WRITE(ah, AR_RC, AR_RC_AHB); |
f1dc5600 S |
1333 | |
1334 | rst_flags = AR_RTC_RC_MAC_WARM; | |
1335 | if (type == ATH9K_RESET_COLD) | |
1336 | rst_flags |= AR_RTC_RC_MAC_COLD; | |
1337 | } | |
1338 | ||
7d95847c GJ |
1339 | if (AR_SREV_9330(ah)) { |
1340 | int npend = 0; | |
1341 | int i; | |
1342 | ||
1343 | /* AR9330 WAR: | |
1344 | * call external reset function to reset WMAC if: | |
1345 | * - doing a cold reset | |
1346 | * - we have pending frames in the TX queues | |
1347 | */ | |
1348 | ||
1349 | for (i = 0; i < AR_NUM_QCU; i++) { | |
1350 | npend = ath9k_hw_numtxpending(ah, i); | |
1351 | if (npend) | |
1352 | break; | |
1353 | } | |
1354 | ||
1355 | if (ah->external_reset && | |
1356 | (npend || type == ATH9K_RESET_COLD)) { | |
1357 | int reset_err = 0; | |
1358 | ||
d2182b69 | 1359 | ath_dbg(ath9k_hw_common(ah), RESET, |
7d95847c GJ |
1360 | "reset MAC via external reset\n"); |
1361 | ||
1362 | reset_err = ah->external_reset(); | |
1363 | if (reset_err) { | |
1364 | ath_err(ath9k_hw_common(ah), | |
1365 | "External reset failed, err=%d\n", | |
1366 | reset_err); | |
1367 | return false; | |
1368 | } | |
1369 | ||
1370 | REG_WRITE(ah, AR_RTC_RESET, 1); | |
1371 | } | |
1372 | } | |
1373 | ||
d03a66c1 | 1374 | REG_WRITE(ah, AR_RTC_RC, rst_flags); |
7d0d0df0 S |
1375 | |
1376 | REGWRITE_BUFFER_FLUSH(ah); | |
7d0d0df0 | 1377 | |
f1dc5600 S |
1378 | udelay(50); |
1379 | ||
d03a66c1 | 1380 | REG_WRITE(ah, AR_RTC_RC, 0); |
0caa7b14 | 1381 | if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) { |
d2182b69 | 1382 | ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n"); |
f1dc5600 S |
1383 | return false; |
1384 | } | |
1385 | ||
1386 | if (!AR_SREV_9100(ah)) | |
1387 | REG_WRITE(ah, AR_RC, 0); | |
1388 | ||
f1dc5600 S |
1389 | if (AR_SREV_9100(ah)) |
1390 | udelay(50); | |
1391 | ||
1392 | return true; | |
1393 | } | |
1394 | ||
cbe61d8a | 1395 | static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah) |
f1dc5600 | 1396 | { |
7d0d0df0 S |
1397 | ENABLE_REGWRITE_BUFFER(ah); |
1398 | ||
9a658d2b LR |
1399 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
1400 | REG_WRITE(ah, AR_WA, ah->WARegVal); | |
1401 | udelay(10); | |
1402 | } | |
1403 | ||
f1dc5600 S |
1404 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN | |
1405 | AR_RTC_FORCE_WAKE_ON_INT); | |
1406 | ||
42d5bc3f | 1407 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
1c29ce67 VT |
1408 | REG_WRITE(ah, AR_RC, AR_RC_AHB); |
1409 | ||
d03a66c1 | 1410 | REG_WRITE(ah, AR_RTC_RESET, 0); |
1c29ce67 | 1411 | |
7d0d0df0 | 1412 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1413 | |
84e2169b SB |
1414 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
1415 | udelay(2); | |
1416 | ||
1417 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) | |
1c29ce67 VT |
1418 | REG_WRITE(ah, AR_RC, 0); |
1419 | ||
d03a66c1 | 1420 | REG_WRITE(ah, AR_RTC_RESET, 1); |
f1dc5600 S |
1421 | |
1422 | if (!ath9k_hw_wait(ah, | |
1423 | AR_RTC_STATUS, | |
1424 | AR_RTC_STATUS_M, | |
0caa7b14 S |
1425 | AR_RTC_STATUS_ON, |
1426 | AH_WAIT_TIMEOUT)) { | |
d2182b69 | 1427 | ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n"); |
f1dc5600 | 1428 | return false; |
f078f209 LR |
1429 | } |
1430 | ||
f1dc5600 S |
1431 | return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM); |
1432 | } | |
1433 | ||
cbe61d8a | 1434 | static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type) |
f1dc5600 | 1435 | { |
7a9233ff | 1436 | bool ret = false; |
2577c6e8 | 1437 | |
9a658d2b LR |
1438 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
1439 | REG_WRITE(ah, AR_WA, ah->WARegVal); | |
1440 | udelay(10); | |
1441 | } | |
1442 | ||
f1dc5600 S |
1443 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, |
1444 | AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT); | |
1445 | ||
1446 | switch (type) { | |
1447 | case ATH9K_RESET_POWER_ON: | |
7a9233ff MSS |
1448 | ret = ath9k_hw_set_reset_power_on(ah); |
1449 | break; | |
f1dc5600 S |
1450 | case ATH9K_RESET_WARM: |
1451 | case ATH9K_RESET_COLD: | |
7a9233ff MSS |
1452 | ret = ath9k_hw_set_reset(ah, type); |
1453 | break; | |
f1dc5600 | 1454 | default: |
7a9233ff | 1455 | break; |
f1dc5600 | 1456 | } |
7a9233ff MSS |
1457 | |
1458 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) | |
1459 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); | |
1460 | ||
1461 | return ret; | |
f078f209 LR |
1462 | } |
1463 | ||
cbe61d8a | 1464 | static bool ath9k_hw_chip_reset(struct ath_hw *ah, |
f1dc5600 | 1465 | struct ath9k_channel *chan) |
f078f209 | 1466 | { |
9c083af8 FF |
1467 | int reset_type = ATH9K_RESET_WARM; |
1468 | ||
1469 | if (AR_SREV_9280(ah)) { | |
1470 | if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) | |
1471 | reset_type = ATH9K_RESET_POWER_ON; | |
1472 | else | |
1473 | reset_type = ATH9K_RESET_COLD; | |
1474 | } | |
1475 | ||
1476 | if (!ath9k_hw_set_reset_reg(ah, reset_type)) | |
f1dc5600 | 1477 | return false; |
f078f209 | 1478 | |
9ecdef4b | 1479 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
f1dc5600 | 1480 | return false; |
f078f209 | 1481 | |
2660b81a | 1482 | ah->chip_fullsleep = false; |
bfc441a4 FF |
1483 | |
1484 | if (AR_SREV_9330(ah)) | |
1485 | ar9003_hw_internal_regulator_apply(ah); | |
f1dc5600 | 1486 | ath9k_hw_init_pll(ah, chan); |
f1dc5600 | 1487 | ath9k_hw_set_rfmode(ah, chan); |
f078f209 | 1488 | |
f1dc5600 | 1489 | return true; |
f078f209 LR |
1490 | } |
1491 | ||
cbe61d8a | 1492 | static bool ath9k_hw_channel_change(struct ath_hw *ah, |
25c56eec | 1493 | struct ath9k_channel *chan) |
f078f209 | 1494 | { |
c46917bb | 1495 | struct ath_common *common = ath9k_hw_common(ah); |
8fe65368 | 1496 | u32 qnum; |
0a3b7bac | 1497 | int r; |
5f0c04ea RM |
1498 | bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA); |
1499 | bool band_switch, mode_diff; | |
1500 | u8 ini_reloaded; | |
1501 | ||
1502 | band_switch = (chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ)) != | |
1503 | (ah->curchan->channelFlags & (CHANNEL_2GHZ | | |
1504 | CHANNEL_5GHZ)); | |
1505 | mode_diff = (chan->chanmode != ah->curchan->chanmode); | |
f078f209 LR |
1506 | |
1507 | for (qnum = 0; qnum < AR_NUM_QCU; qnum++) { | |
1508 | if (ath9k_hw_numtxpending(ah, qnum)) { | |
d2182b69 | 1509 | ath_dbg(common, QUEUE, |
226afe68 | 1510 | "Transmit frames pending on queue %d\n", qnum); |
f078f209 LR |
1511 | return false; |
1512 | } | |
1513 | } | |
1514 | ||
8fe65368 | 1515 | if (!ath9k_hw_rfbus_req(ah)) { |
3800276a | 1516 | ath_err(common, "Could not kill baseband RX\n"); |
f078f209 LR |
1517 | return false; |
1518 | } | |
1519 | ||
5f0c04ea RM |
1520 | if (edma && (band_switch || mode_diff)) { |
1521 | ath9k_hw_mark_phy_inactive(ah); | |
1522 | udelay(5); | |
1523 | ||
1524 | ath9k_hw_init_pll(ah, NULL); | |
1525 | ||
1526 | if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) { | |
1527 | ath_err(common, "Failed to do fast channel change\n"); | |
1528 | return false; | |
1529 | } | |
1530 | } | |
1531 | ||
8fe65368 | 1532 | ath9k_hw_set_channel_regs(ah, chan); |
f078f209 | 1533 | |
8fe65368 | 1534 | r = ath9k_hw_rf_set_freq(ah, chan); |
0a3b7bac | 1535 | if (r) { |
3800276a | 1536 | ath_err(common, "Failed to set channel\n"); |
0a3b7bac | 1537 | return false; |
f078f209 | 1538 | } |
dfdac8ac | 1539 | ath9k_hw_set_clockrate(ah); |
64ea57d0 | 1540 | ath9k_hw_apply_txpower(ah, chan, false); |
8fe65368 | 1541 | ath9k_hw_rfbus_done(ah); |
f078f209 | 1542 | |
f1dc5600 S |
1543 | if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) |
1544 | ath9k_hw_set_delta_slope(ah, chan); | |
1545 | ||
8fe65368 | 1546 | ath9k_hw_spur_mitigate_freq(ah, chan); |
f1dc5600 | 1547 | |
5f0c04ea | 1548 | if (edma && (band_switch || mode_diff)) { |
a126ff51 | 1549 | ah->ah_flags |= AH_FASTCC; |
5f0c04ea RM |
1550 | if (band_switch || ini_reloaded) |
1551 | ah->eep_ops->set_board_values(ah, chan); | |
1552 | ||
1553 | ath9k_hw_init_bb(ah, chan); | |
1554 | ||
1555 | if (band_switch || ini_reloaded) | |
1556 | ath9k_hw_init_cal(ah, chan); | |
a126ff51 | 1557 | ah->ah_flags &= ~AH_FASTCC; |
5f0c04ea RM |
1558 | } |
1559 | ||
f1dc5600 S |
1560 | return true; |
1561 | } | |
1562 | ||
691680b8 FF |
1563 | static void ath9k_hw_apply_gpio_override(struct ath_hw *ah) |
1564 | { | |
1565 | u32 gpio_mask = ah->gpio_mask; | |
1566 | int i; | |
1567 | ||
1568 | for (i = 0; gpio_mask; i++, gpio_mask >>= 1) { | |
1569 | if (!(gpio_mask & 1)) | |
1570 | continue; | |
1571 | ||
1572 | ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1573 | ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i))); | |
1574 | } | |
1575 | } | |
1576 | ||
01e18918 RM |
1577 | static bool ath9k_hw_check_dcs(u32 dma_dbg, u32 num_dcu_states, |
1578 | int *hang_state, int *hang_pos) | |
1579 | { | |
1580 | static u32 dcu_chain_state[] = {5, 6, 9}; /* DCU chain stuck states */ | |
1581 | u32 chain_state, dcs_pos, i; | |
1582 | ||
1583 | for (dcs_pos = 0; dcs_pos < num_dcu_states; dcs_pos++) { | |
1584 | chain_state = (dma_dbg >> (5 * dcs_pos)) & 0x1f; | |
1585 | for (i = 0; i < 3; i++) { | |
1586 | if (chain_state == dcu_chain_state[i]) { | |
1587 | *hang_state = chain_state; | |
1588 | *hang_pos = dcs_pos; | |
1589 | return true; | |
1590 | } | |
1591 | } | |
1592 | } | |
1593 | return false; | |
1594 | } | |
1595 | ||
1596 | #define DCU_COMPLETE_STATE 1 | |
1597 | #define DCU_COMPLETE_STATE_MASK 0x3 | |
1598 | #define NUM_STATUS_READS 50 | |
1599 | static bool ath9k_hw_detect_mac_hang(struct ath_hw *ah) | |
1600 | { | |
1601 | u32 chain_state, comp_state, dcs_reg = AR_DMADBG_4; | |
1602 | u32 i, hang_pos, hang_state, num_state = 6; | |
1603 | ||
1604 | comp_state = REG_READ(ah, AR_DMADBG_6); | |
1605 | ||
1606 | if ((comp_state & DCU_COMPLETE_STATE_MASK) != DCU_COMPLETE_STATE) { | |
1607 | ath_dbg(ath9k_hw_common(ah), RESET, | |
1608 | "MAC Hang signature not found at DCU complete\n"); | |
1609 | return false; | |
1610 | } | |
1611 | ||
1612 | chain_state = REG_READ(ah, dcs_reg); | |
1613 | if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) | |
1614 | goto hang_check_iter; | |
1615 | ||
1616 | dcs_reg = AR_DMADBG_5; | |
1617 | num_state = 4; | |
1618 | chain_state = REG_READ(ah, dcs_reg); | |
1619 | if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) | |
1620 | goto hang_check_iter; | |
1621 | ||
1622 | ath_dbg(ath9k_hw_common(ah), RESET, | |
1623 | "MAC Hang signature 1 not found\n"); | |
1624 | return false; | |
1625 | ||
1626 | hang_check_iter: | |
1627 | ath_dbg(ath9k_hw_common(ah), RESET, | |
1628 | "DCU registers: chain %08x complete %08x Hang: state %d pos %d\n", | |
1629 | chain_state, comp_state, hang_state, hang_pos); | |
1630 | ||
1631 | for (i = 0; i < NUM_STATUS_READS; i++) { | |
1632 | chain_state = REG_READ(ah, dcs_reg); | |
1633 | chain_state = (chain_state >> (5 * hang_pos)) & 0x1f; | |
1634 | comp_state = REG_READ(ah, AR_DMADBG_6); | |
1635 | ||
1636 | if (((comp_state & DCU_COMPLETE_STATE_MASK) != | |
1637 | DCU_COMPLETE_STATE) || | |
1638 | (chain_state != hang_state)) | |
1639 | return false; | |
1640 | } | |
1641 | ||
1642 | ath_dbg(ath9k_hw_common(ah), RESET, "MAC Hang signature 1 found\n"); | |
1643 | ||
1644 | return true; | |
1645 | } | |
1646 | ||
c9c99e5e | 1647 | bool ath9k_hw_check_alive(struct ath_hw *ah) |
3b319aae | 1648 | { |
c9c99e5e FF |
1649 | int count = 50; |
1650 | u32 reg; | |
1651 | ||
01e18918 RM |
1652 | if (AR_SREV_9300(ah)) |
1653 | return !ath9k_hw_detect_mac_hang(ah); | |
1654 | ||
e17f83ea | 1655 | if (AR_SREV_9285_12_OR_LATER(ah)) |
c9c99e5e FF |
1656 | return true; |
1657 | ||
1658 | do { | |
1659 | reg = REG_READ(ah, AR_OBS_BUS_1); | |
3b319aae | 1660 | |
c9c99e5e FF |
1661 | if ((reg & 0x7E7FFFEF) == 0x00702400) |
1662 | continue; | |
1663 | ||
1664 | switch (reg & 0x7E000B00) { | |
1665 | case 0x1E000000: | |
1666 | case 0x52000B00: | |
1667 | case 0x18000B00: | |
1668 | continue; | |
1669 | default: | |
1670 | return true; | |
1671 | } | |
1672 | } while (count-- > 0); | |
3b319aae | 1673 | |
c9c99e5e | 1674 | return false; |
3b319aae | 1675 | } |
c9c99e5e | 1676 | EXPORT_SYMBOL(ath9k_hw_check_alive); |
3b319aae | 1677 | |
caed6579 SM |
1678 | /* |
1679 | * Fast channel change: | |
1680 | * (Change synthesizer based on channel freq without resetting chip) | |
1681 | * | |
1682 | * Don't do FCC when | |
1683 | * - Flag is not set | |
1684 | * - Chip is just coming out of full sleep | |
1685 | * - Channel to be set is same as current channel | |
1686 | * - Channel flags are different, (eg.,moving from 2GHz to 5GHz channel) | |
1687 | */ | |
1688 | static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan) | |
1689 | { | |
1690 | struct ath_common *common = ath9k_hw_common(ah); | |
1691 | int ret; | |
1692 | ||
1693 | if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI) | |
1694 | goto fail; | |
1695 | ||
1696 | if (ah->chip_fullsleep) | |
1697 | goto fail; | |
1698 | ||
1699 | if (!ah->curchan) | |
1700 | goto fail; | |
1701 | ||
1702 | if (chan->channel == ah->curchan->channel) | |
1703 | goto fail; | |
1704 | ||
feb7bc99 FF |
1705 | if ((ah->curchan->channelFlags | chan->channelFlags) & |
1706 | (CHANNEL_HALF | CHANNEL_QUARTER)) | |
1707 | goto fail; | |
1708 | ||
caed6579 SM |
1709 | if ((chan->channelFlags & CHANNEL_ALL) != |
1710 | (ah->curchan->channelFlags & CHANNEL_ALL)) | |
1711 | goto fail; | |
1712 | ||
1713 | if (!ath9k_hw_check_alive(ah)) | |
1714 | goto fail; | |
1715 | ||
1716 | /* | |
1717 | * For AR9462, make sure that calibration data for | |
1718 | * re-using are present. | |
1719 | */ | |
8a90555f SM |
1720 | if (AR_SREV_9462(ah) && (ah->caldata && |
1721 | (!ah->caldata->done_txiqcal_once || | |
1722 | !ah->caldata->done_txclcal_once || | |
1723 | !ah->caldata->rtt_done))) | |
caed6579 SM |
1724 | goto fail; |
1725 | ||
1726 | ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n", | |
1727 | ah->curchan->channel, chan->channel); | |
1728 | ||
1729 | ret = ath9k_hw_channel_change(ah, chan); | |
1730 | if (!ret) | |
1731 | goto fail; | |
1732 | ||
1733 | ath9k_hw_loadnf(ah, ah->curchan); | |
1734 | ath9k_hw_start_nfcal(ah, true); | |
1735 | ||
1736 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && ar9003_mci_is_ready(ah)) | |
1737 | ar9003_mci_2g5g_switch(ah, true); | |
1738 | ||
1739 | if (AR_SREV_9271(ah)) | |
1740 | ar9002_hw_load_ani_reg(ah, chan); | |
1741 | ||
1742 | return 0; | |
1743 | fail: | |
1744 | return -EINVAL; | |
1745 | } | |
1746 | ||
cbe61d8a | 1747 | int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, |
caed6579 | 1748 | struct ath9k_hw_cal_data *caldata, bool fastcc) |
f078f209 | 1749 | { |
1510718d | 1750 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 1751 | u32 saveLedState; |
f078f209 LR |
1752 | u32 saveDefAntenna; |
1753 | u32 macStaId1; | |
46fe782c | 1754 | u64 tsf = 0; |
8fe65368 | 1755 | int i, r; |
caed6579 | 1756 | bool start_mci_reset = false; |
63d32967 MSS |
1757 | bool mci = !!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI); |
1758 | bool save_fullsleep = ah->chip_fullsleep; | |
1759 | ||
1760 | if (mci) { | |
528e5d36 SM |
1761 | start_mci_reset = ar9003_mci_start_reset(ah, chan); |
1762 | if (start_mci_reset) | |
1763 | return 0; | |
63d32967 MSS |
1764 | } |
1765 | ||
9ecdef4b | 1766 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
ae8d2858 | 1767 | return -EIO; |
f078f209 | 1768 | |
caed6579 SM |
1769 | if (ah->curchan && !ah->chip_fullsleep) |
1770 | ath9k_hw_getnf(ah, ah->curchan); | |
f078f209 | 1771 | |
20bd2a09 FF |
1772 | ah->caldata = caldata; |
1773 | if (caldata && | |
1774 | (chan->channel != caldata->channel || | |
1775 | (chan->channelFlags & ~CHANNEL_CW_INT) != | |
1776 | (caldata->channelFlags & ~CHANNEL_CW_INT))) { | |
1777 | /* Operating channel changed, reset channel calibration data */ | |
1778 | memset(caldata, 0, sizeof(*caldata)); | |
1779 | ath9k_init_nfcal_hist_buffer(ah, chan); | |
1780 | } | |
f23fba49 | 1781 | ah->noise = ath9k_hw_getchan_noise(ah, chan); |
20bd2a09 | 1782 | |
caed6579 SM |
1783 | if (fastcc) { |
1784 | r = ath9k_hw_do_fastcc(ah, chan); | |
1785 | if (!r) | |
1786 | return r; | |
f078f209 LR |
1787 | } |
1788 | ||
528e5d36 SM |
1789 | if (mci) |
1790 | ar9003_mci_stop_bt(ah, save_fullsleep); | |
63d32967 | 1791 | |
f078f209 LR |
1792 | saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA); |
1793 | if (saveDefAntenna == 0) | |
1794 | saveDefAntenna = 1; | |
1795 | ||
1796 | macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B; | |
1797 | ||
46fe782c | 1798 | /* For chips on which RTC reset is done, save TSF before it gets cleared */ |
f860d526 FF |
1799 | if (AR_SREV_9100(ah) || |
1800 | (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))) | |
46fe782c S |
1801 | tsf = ath9k_hw_gettsf64(ah); |
1802 | ||
f078f209 LR |
1803 | saveLedState = REG_READ(ah, AR_CFG_LED) & |
1804 | (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL | | |
1805 | AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW); | |
1806 | ||
1807 | ath9k_hw_mark_phy_inactive(ah); | |
1808 | ||
45ef6a0b VT |
1809 | ah->paprd_table_write_done = false; |
1810 | ||
05020d23 | 1811 | /* Only required on the first reset */ |
d7e7d229 LR |
1812 | if (AR_SREV_9271(ah) && ah->htc_reset_init) { |
1813 | REG_WRITE(ah, | |
1814 | AR9271_RESET_POWER_DOWN_CONTROL, | |
1815 | AR9271_RADIO_RF_RST); | |
1816 | udelay(50); | |
1817 | } | |
1818 | ||
f078f209 | 1819 | if (!ath9k_hw_chip_reset(ah, chan)) { |
3800276a | 1820 | ath_err(common, "Chip reset failed\n"); |
ae8d2858 | 1821 | return -EINVAL; |
f078f209 LR |
1822 | } |
1823 | ||
05020d23 | 1824 | /* Only required on the first reset */ |
d7e7d229 LR |
1825 | if (AR_SREV_9271(ah) && ah->htc_reset_init) { |
1826 | ah->htc_reset_init = false; | |
1827 | REG_WRITE(ah, | |
1828 | AR9271_RESET_POWER_DOWN_CONTROL, | |
1829 | AR9271_GATE_MAC_CTL); | |
1830 | udelay(50); | |
1831 | } | |
1832 | ||
46fe782c | 1833 | /* Restore TSF */ |
f860d526 | 1834 | if (tsf) |
46fe782c S |
1835 | ath9k_hw_settsf64(ah, tsf); |
1836 | ||
7a37081e | 1837 | if (AR_SREV_9280_20_OR_LATER(ah)) |
369391db | 1838 | REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE); |
f078f209 | 1839 | |
e9141f71 S |
1840 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
1841 | ar9002_hw_enable_async_fifo(ah); | |
1842 | ||
25c56eec | 1843 | r = ath9k_hw_process_ini(ah, chan); |
ae8d2858 LR |
1844 | if (r) |
1845 | return r; | |
f078f209 | 1846 | |
63d32967 MSS |
1847 | if (mci) |
1848 | ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep); | |
1849 | ||
f860d526 FF |
1850 | /* |
1851 | * Some AR91xx SoC devices frequently fail to accept TSF writes | |
1852 | * right after the chip reset. When that happens, write a new | |
1853 | * value after the initvals have been applied, with an offset | |
1854 | * based on measured time difference | |
1855 | */ | |
1856 | if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) { | |
1857 | tsf += 1500; | |
1858 | ath9k_hw_settsf64(ah, tsf); | |
1859 | } | |
1860 | ||
0ced0e17 JM |
1861 | /* Setup MFP options for CCMP */ |
1862 | if (AR_SREV_9280_20_OR_LATER(ah)) { | |
1863 | /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt | |
1864 | * frames when constructing CCMP AAD. */ | |
1865 | REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT, | |
1866 | 0xc7ff); | |
1867 | ah->sw_mgmt_crypto = false; | |
1868 | } else if (AR_SREV_9160_10_OR_LATER(ah)) { | |
1869 | /* Disable hardware crypto for management frames */ | |
1870 | REG_CLR_BIT(ah, AR_PCU_MISC_MODE2, | |
1871 | AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE); | |
1872 | REG_SET_BIT(ah, AR_PCU_MISC_MODE2, | |
1873 | AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT); | |
1874 | ah->sw_mgmt_crypto = true; | |
1875 | } else | |
1876 | ah->sw_mgmt_crypto = true; | |
1877 | ||
f078f209 LR |
1878 | if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) |
1879 | ath9k_hw_set_delta_slope(ah, chan); | |
1880 | ||
8fe65368 | 1881 | ath9k_hw_spur_mitigate_freq(ah, chan); |
d6509151 | 1882 | ah->eep_ops->set_board_values(ah, chan); |
a7765828 | 1883 | |
7d0d0df0 S |
1884 | ENABLE_REGWRITE_BUFFER(ah); |
1885 | ||
1510718d LR |
1886 | REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr)); |
1887 | REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4) | |
f078f209 LR |
1888 | | macStaId1 |
1889 | | AR_STA_ID1_RTS_USE_DEF | |
2660b81a | 1890 | | (ah->config. |
60b67f51 | 1891 | ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0) |
2660b81a | 1892 | | ah->sta_id1_defaults); |
13b81559 | 1893 | ath_hw_setbssidmask(common); |
f078f209 | 1894 | REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna); |
3453ad88 | 1895 | ath9k_hw_write_associd(ah); |
f078f209 | 1896 | REG_WRITE(ah, AR_ISR, ~0); |
f078f209 LR |
1897 | REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR); |
1898 | ||
7d0d0df0 | 1899 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1900 | |
00e0003e SM |
1901 | ath9k_hw_set_operating_mode(ah, ah->opmode); |
1902 | ||
8fe65368 | 1903 | r = ath9k_hw_rf_set_freq(ah, chan); |
0a3b7bac LR |
1904 | if (r) |
1905 | return r; | |
f078f209 | 1906 | |
dfdac8ac FF |
1907 | ath9k_hw_set_clockrate(ah); |
1908 | ||
7d0d0df0 S |
1909 | ENABLE_REGWRITE_BUFFER(ah); |
1910 | ||
f078f209 LR |
1911 | for (i = 0; i < AR_NUM_DCU; i++) |
1912 | REG_WRITE(ah, AR_DQCUMASK(i), 1 << i); | |
1913 | ||
7d0d0df0 | 1914 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1915 | |
2660b81a | 1916 | ah->intr_txqs = 0; |
f4c607dc | 1917 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
f078f209 LR |
1918 | ath9k_hw_resettxqueue(ah, i); |
1919 | ||
2660b81a | 1920 | ath9k_hw_init_interrupt_masks(ah, ah->opmode); |
e36b27af | 1921 | ath9k_hw_ani_cache_ini_regs(ah); |
f078f209 LR |
1922 | ath9k_hw_init_qos(ah); |
1923 | ||
2660b81a | 1924 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
55821324 | 1925 | ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio); |
3b319aae | 1926 | |
0005baf4 | 1927 | ath9k_hw_init_global_settings(ah); |
f078f209 | 1928 | |
fe2b6afb FF |
1929 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { |
1930 | REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER, | |
1931 | AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768); | |
1932 | REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN, | |
1933 | AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL); | |
1934 | REG_SET_BIT(ah, AR_PCU_MISC_MODE2, | |
1935 | AR_PCU_MISC_MODE2_ENABLE_AGGWEP); | |
ac88b6ec VN |
1936 | } |
1937 | ||
ca7a4deb | 1938 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM); |
f078f209 LR |
1939 | |
1940 | ath9k_hw_set_dma(ah); | |
1941 | ||
1942 | REG_WRITE(ah, AR_OBS, 8); | |
1943 | ||
0ce024cb | 1944 | if (ah->config.rx_intr_mitigation) { |
f078f209 LR |
1945 | REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500); |
1946 | REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000); | |
1947 | } | |
1948 | ||
7f62a136 VT |
1949 | if (ah->config.tx_intr_mitigation) { |
1950 | REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300); | |
1951 | REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750); | |
1952 | } | |
1953 | ||
f078f209 LR |
1954 | ath9k_hw_init_bb(ah, chan); |
1955 | ||
77a5a664 | 1956 | if (caldata) { |
5f0c04ea | 1957 | caldata->done_txiqcal_once = false; |
77a5a664 RM |
1958 | caldata->done_txclcal_once = false; |
1959 | } | |
ae8d2858 | 1960 | if (!ath9k_hw_init_cal(ah, chan)) |
6badaaf7 | 1961 | return -EIO; |
f078f209 | 1962 | |
93348928 RM |
1963 | ath9k_hw_loadnf(ah, chan); |
1964 | ath9k_hw_start_nfcal(ah, true); | |
1965 | ||
528e5d36 SM |
1966 | if (mci && ar9003_mci_end_reset(ah, chan, caldata)) |
1967 | return -EIO; | |
63d32967 | 1968 | |
7d0d0df0 | 1969 | ENABLE_REGWRITE_BUFFER(ah); |
f078f209 | 1970 | |
8fe65368 | 1971 | ath9k_hw_restore_chainmask(ah); |
f078f209 LR |
1972 | REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ); |
1973 | ||
7d0d0df0 | 1974 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 1975 | |
d7e7d229 LR |
1976 | /* |
1977 | * For big endian systems turn on swapping for descriptors | |
1978 | */ | |
f078f209 LR |
1979 | if (AR_SREV_9100(ah)) { |
1980 | u32 mask; | |
1981 | mask = REG_READ(ah, AR_CFG); | |
1982 | if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) { | |
d2182b69 JP |
1983 | ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n", |
1984 | mask); | |
f078f209 LR |
1985 | } else { |
1986 | mask = | |
1987 | INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB; | |
1988 | REG_WRITE(ah, AR_CFG, mask); | |
d2182b69 JP |
1989 | ath_dbg(common, RESET, "Setting CFG 0x%x\n", |
1990 | REG_READ(ah, AR_CFG)); | |
f078f209 LR |
1991 | } |
1992 | } else { | |
cbba8cd1 S |
1993 | if (common->bus_ops->ath_bus_type == ATH_USB) { |
1994 | /* Configure AR9271 target WLAN */ | |
1995 | if (AR_SREV_9271(ah)) | |
1996 | REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB); | |
1997 | else | |
1998 | REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD); | |
1999 | } | |
f078f209 | 2000 | #ifdef __BIG_ENDIAN |
4033bdad | 2001 | else if (AR_SREV_9330(ah) || AR_SREV_9340(ah)) |
2be7bfe0 VT |
2002 | REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0); |
2003 | else | |
d7e7d229 | 2004 | REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD); |
f078f209 LR |
2005 | #endif |
2006 | } | |
2007 | ||
dbccdd1d | 2008 | if (ath9k_hw_btcoex_is_enabled(ah)) |
42cc41ed VT |
2009 | ath9k_hw_btcoex_enable(ah); |
2010 | ||
528e5d36 SM |
2011 | if (mci) |
2012 | ar9003_mci_check_bt(ah); | |
63d32967 | 2013 | |
51ac8cbb | 2014 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
aea702b7 | 2015 | ar9003_hw_bb_watchdog_config(ah); |
d8903a53 | 2016 | |
51ac8cbb RM |
2017 | ar9003_hw_disable_phy_restart(ah); |
2018 | } | |
2019 | ||
691680b8 FF |
2020 | ath9k_hw_apply_gpio_override(ah); |
2021 | ||
ae8d2858 | 2022 | return 0; |
f078f209 | 2023 | } |
7322fd19 | 2024 | EXPORT_SYMBOL(ath9k_hw_reset); |
f078f209 | 2025 | |
f1dc5600 S |
2026 | /******************************/ |
2027 | /* Power Management (Chipset) */ | |
2028 | /******************************/ | |
2029 | ||
42d5bc3f LR |
2030 | /* |
2031 | * Notify Power Mgt is disabled in self-generated frames. | |
2032 | * If requested, force chip to sleep. | |
2033 | */ | |
cbe61d8a | 2034 | static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip) |
f078f209 | 2035 | { |
f1dc5600 S |
2036 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
2037 | if (setChip) { | |
423e38e8 | 2038 | if (AR_SREV_9462(ah)) { |
2577c6e8 SB |
2039 | REG_WRITE(ah, AR_TIMER_MODE, |
2040 | REG_READ(ah, AR_TIMER_MODE) & 0xFFFFFF00); | |
2041 | REG_WRITE(ah, AR_NDP2_TIMER_MODE, REG_READ(ah, | |
2042 | AR_NDP2_TIMER_MODE) & 0xFFFFFF00); | |
2043 | REG_WRITE(ah, AR_SLP32_INC, | |
2044 | REG_READ(ah, AR_SLP32_INC) & 0xFFF00000); | |
2045 | /* xxx Required for WLAN only case ? */ | |
2046 | REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0); | |
2047 | udelay(100); | |
2048 | } | |
2049 | ||
42d5bc3f LR |
2050 | /* |
2051 | * Clear the RTC force wake bit to allow the | |
2052 | * mac to go to sleep. | |
2053 | */ | |
2577c6e8 SB |
2054 | REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN); |
2055 | ||
423e38e8 | 2056 | if (AR_SREV_9462(ah)) |
2577c6e8 SB |
2057 | udelay(100); |
2058 | ||
42d5bc3f | 2059 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
f1dc5600 | 2060 | REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF); |
f078f209 | 2061 | |
42d5bc3f | 2062 | /* Shutdown chip. Active low */ |
c91ec465 | 2063 | if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) { |
2577c6e8 SB |
2064 | REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN); |
2065 | udelay(2); | |
2066 | } | |
f1dc5600 | 2067 | } |
9a658d2b LR |
2068 | |
2069 | /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */ | |
a7322812 RW |
2070 | if (AR_SREV_9300_20_OR_LATER(ah)) |
2071 | REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); | |
f078f209 LR |
2072 | } |
2073 | ||
bbd79af5 LR |
2074 | /* |
2075 | * Notify Power Management is enabled in self-generating | |
2076 | * frames. If request, set power mode of chip to | |
2077 | * auto/normal. Duration in units of 128us (1/8 TU). | |
2078 | */ | |
cbe61d8a | 2079 | static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip) |
f078f209 | 2080 | { |
2577c6e8 SB |
2081 | u32 val; |
2082 | ||
f1dc5600 S |
2083 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
2084 | if (setChip) { | |
2660b81a | 2085 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
f078f209 | 2086 | |
f1dc5600 | 2087 | if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
bbd79af5 | 2088 | /* Set WakeOnInterrupt bit; clear ForceWake bit */ |
f1dc5600 S |
2089 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, |
2090 | AR_RTC_FORCE_WAKE_ON_INT); | |
2091 | } else { | |
2577c6e8 SB |
2092 | |
2093 | /* When chip goes into network sleep, it could be waken | |
2094 | * up by MCI_INT interrupt caused by BT's HW messages | |
2095 | * (LNA_xxx, CONT_xxx) which chould be in a very fast | |
2096 | * rate (~100us). This will cause chip to leave and | |
2097 | * re-enter network sleep mode frequently, which in | |
2098 | * consequence will have WLAN MCI HW to generate lots of | |
2099 | * SYS_WAKING and SYS_SLEEPING messages which will make | |
2100 | * BT CPU to busy to process. | |
2101 | */ | |
423e38e8 | 2102 | if (AR_SREV_9462(ah)) { |
2577c6e8 SB |
2103 | val = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_EN) & |
2104 | ~AR_MCI_INTERRUPT_RX_HW_MSG_MASK; | |
2105 | REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, val); | |
2106 | } | |
bbd79af5 LR |
2107 | /* |
2108 | * Clear the RTC force wake bit to allow the | |
2109 | * mac to go to sleep. | |
2110 | */ | |
f1dc5600 S |
2111 | REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, |
2112 | AR_RTC_FORCE_WAKE_EN); | |
2577c6e8 | 2113 | |
423e38e8 | 2114 | if (AR_SREV_9462(ah)) |
2577c6e8 | 2115 | udelay(30); |
f078f209 | 2116 | } |
f078f209 | 2117 | } |
9a658d2b LR |
2118 | |
2119 | /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */ | |
2120 | if (AR_SREV_9300_20_OR_LATER(ah)) | |
2121 | REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); | |
f078f209 LR |
2122 | } |
2123 | ||
cbe61d8a | 2124 | static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip) |
f078f209 | 2125 | { |
f1dc5600 S |
2126 | u32 val; |
2127 | int i; | |
f078f209 | 2128 | |
9a658d2b LR |
2129 | /* Set Bits 14 and 17 of AR_WA before powering on the chip. */ |
2130 | if (AR_SREV_9300_20_OR_LATER(ah)) { | |
2131 | REG_WRITE(ah, AR_WA, ah->WARegVal); | |
2132 | udelay(10); | |
2133 | } | |
2134 | ||
f1dc5600 S |
2135 | if (setChip) { |
2136 | if ((REG_READ(ah, AR_RTC_STATUS) & | |
2137 | AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) { | |
23677ce3 | 2138 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) { |
f1dc5600 S |
2139 | return false; |
2140 | } | |
e041228f LR |
2141 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
2142 | ath9k_hw_init_pll(ah, NULL); | |
f1dc5600 S |
2143 | } |
2144 | if (AR_SREV_9100(ah)) | |
2145 | REG_SET_BIT(ah, AR_RTC_RESET, | |
2146 | AR_RTC_RESET_EN); | |
f078f209 | 2147 | |
f1dc5600 S |
2148 | REG_SET_BIT(ah, AR_RTC_FORCE_WAKE, |
2149 | AR_RTC_FORCE_WAKE_EN); | |
2150 | udelay(50); | |
f078f209 | 2151 | |
f1dc5600 S |
2152 | for (i = POWER_UP_TIME / 50; i > 0; i--) { |
2153 | val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M; | |
2154 | if (val == AR_RTC_STATUS_ON) | |
2155 | break; | |
2156 | udelay(50); | |
2157 | REG_SET_BIT(ah, AR_RTC_FORCE_WAKE, | |
2158 | AR_RTC_FORCE_WAKE_EN); | |
f078f209 | 2159 | } |
f1dc5600 | 2160 | if (i == 0) { |
3800276a JP |
2161 | ath_err(ath9k_hw_common(ah), |
2162 | "Failed to wakeup in %uus\n", | |
2163 | POWER_UP_TIME / 20); | |
f1dc5600 | 2164 | return false; |
f078f209 | 2165 | } |
f078f209 LR |
2166 | } |
2167 | ||
f1dc5600 | 2168 | REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
f078f209 | 2169 | |
f1dc5600 | 2170 | return true; |
f078f209 LR |
2171 | } |
2172 | ||
9ecdef4b | 2173 | bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) |
f078f209 | 2174 | { |
c46917bb | 2175 | struct ath_common *common = ath9k_hw_common(ah); |
cbe61d8a | 2176 | int status = true, setChip = true; |
f1dc5600 S |
2177 | static const char *modes[] = { |
2178 | "AWAKE", | |
2179 | "FULL-SLEEP", | |
2180 | "NETWORK SLEEP", | |
2181 | "UNDEFINED" | |
2182 | }; | |
f1dc5600 | 2183 | |
cbdec975 GJ |
2184 | if (ah->power_mode == mode) |
2185 | return status; | |
2186 | ||
d2182b69 | 2187 | ath_dbg(common, RESET, "%s -> %s\n", |
226afe68 | 2188 | modes[ah->power_mode], modes[mode]); |
f1dc5600 S |
2189 | |
2190 | switch (mode) { | |
2191 | case ATH9K_PM_AWAKE: | |
2192 | status = ath9k_hw_set_power_awake(ah, setChip); | |
1010911e MSS |
2193 | |
2194 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) | |
2195 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); | |
2196 | ||
f1dc5600 S |
2197 | break; |
2198 | case ATH9K_PM_FULL_SLEEP: | |
d1ca8b8e SM |
2199 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) |
2200 | ar9003_mci_set_full_sleep(ah); | |
1010911e | 2201 | |
f1dc5600 | 2202 | ath9k_set_power_sleep(ah, setChip); |
2660b81a | 2203 | ah->chip_fullsleep = true; |
f1dc5600 S |
2204 | break; |
2205 | case ATH9K_PM_NETWORK_SLEEP: | |
1010911e MSS |
2206 | |
2207 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) | |
2208 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); | |
2209 | ||
f1dc5600 S |
2210 | ath9k_set_power_network_sleep(ah, setChip); |
2211 | break; | |
f078f209 | 2212 | default: |
3800276a | 2213 | ath_err(common, "Unknown power mode %u\n", mode); |
f078f209 LR |
2214 | return false; |
2215 | } | |
2660b81a | 2216 | ah->power_mode = mode; |
f1dc5600 | 2217 | |
69f4aab1 LR |
2218 | /* |
2219 | * XXX: If this warning never comes up after a while then | |
2220 | * simply keep the ATH_DBG_WARN_ON_ONCE() but make | |
2221 | * ath9k_hw_setpower() return type void. | |
2222 | */ | |
97dcec57 SM |
2223 | |
2224 | if (!(ah->ah_flags & AH_UNPLUGGED)) | |
2225 | ATH_DBG_WARN_ON_ONCE(!status); | |
69f4aab1 | 2226 | |
f1dc5600 | 2227 | return status; |
f078f209 | 2228 | } |
7322fd19 | 2229 | EXPORT_SYMBOL(ath9k_hw_setpower); |
f078f209 | 2230 | |
f1dc5600 S |
2231 | /*******************/ |
2232 | /* Beacon Handling */ | |
2233 | /*******************/ | |
2234 | ||
cbe61d8a | 2235 | void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period) |
f078f209 | 2236 | { |
f078f209 LR |
2237 | int flags = 0; |
2238 | ||
7d0d0df0 S |
2239 | ENABLE_REGWRITE_BUFFER(ah); |
2240 | ||
2660b81a | 2241 | switch (ah->opmode) { |
d97809db | 2242 | case NL80211_IFTYPE_ADHOC: |
9cb5412b | 2243 | case NL80211_IFTYPE_MESH_POINT: |
f078f209 LR |
2244 | REG_SET_BIT(ah, AR_TXCFG, |
2245 | AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY); | |
dd347f2f FF |
2246 | REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon + |
2247 | TU_TO_USEC(ah->atim_window ? ah->atim_window : 1)); | |
f078f209 | 2248 | flags |= AR_NDP_TIMER_EN; |
d97809db | 2249 | case NL80211_IFTYPE_AP: |
dd347f2f FF |
2250 | REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon); |
2251 | REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon - | |
2252 | TU_TO_USEC(ah->config.dma_beacon_response_time)); | |
2253 | REG_WRITE(ah, AR_NEXT_SWBA, next_beacon - | |
2254 | TU_TO_USEC(ah->config.sw_beacon_response_time)); | |
f078f209 LR |
2255 | flags |= |
2256 | AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN; | |
2257 | break; | |
d97809db | 2258 | default: |
d2182b69 JP |
2259 | ath_dbg(ath9k_hw_common(ah), BEACON, |
2260 | "%s: unsupported opmode: %d\n", __func__, ah->opmode); | |
d97809db CM |
2261 | return; |
2262 | break; | |
f078f209 LR |
2263 | } |
2264 | ||
dd347f2f FF |
2265 | REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period); |
2266 | REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period); | |
2267 | REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period); | |
2268 | REG_WRITE(ah, AR_NDP_PERIOD, beacon_period); | |
f078f209 | 2269 | |
7d0d0df0 | 2270 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 2271 | |
f078f209 LR |
2272 | REG_SET_BIT(ah, AR_TIMER_MODE, flags); |
2273 | } | |
7322fd19 | 2274 | EXPORT_SYMBOL(ath9k_hw_beaconinit); |
f078f209 | 2275 | |
cbe61d8a | 2276 | void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, |
f1dc5600 | 2277 | const struct ath9k_beacon_state *bs) |
f078f209 LR |
2278 | { |
2279 | u32 nextTbtt, beaconintval, dtimperiod, beacontimeout; | |
2660b81a | 2280 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
c46917bb | 2281 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 2282 | |
7d0d0df0 S |
2283 | ENABLE_REGWRITE_BUFFER(ah); |
2284 | ||
f078f209 LR |
2285 | REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt)); |
2286 | ||
2287 | REG_WRITE(ah, AR_BEACON_PERIOD, | |
f29f5c08 | 2288 | TU_TO_USEC(bs->bs_intval)); |
f078f209 | 2289 | REG_WRITE(ah, AR_DMA_BEACON_PERIOD, |
f29f5c08 | 2290 | TU_TO_USEC(bs->bs_intval)); |
f078f209 | 2291 | |
7d0d0df0 | 2292 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 2293 | |
f078f209 LR |
2294 | REG_RMW_FIELD(ah, AR_RSSI_THR, |
2295 | AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold); | |
2296 | ||
f29f5c08 | 2297 | beaconintval = bs->bs_intval; |
f078f209 LR |
2298 | |
2299 | if (bs->bs_sleepduration > beaconintval) | |
2300 | beaconintval = bs->bs_sleepduration; | |
2301 | ||
2302 | dtimperiod = bs->bs_dtimperiod; | |
2303 | if (bs->bs_sleepduration > dtimperiod) | |
2304 | dtimperiod = bs->bs_sleepduration; | |
2305 | ||
2306 | if (beaconintval == dtimperiod) | |
2307 | nextTbtt = bs->bs_nextdtim; | |
2308 | else | |
2309 | nextTbtt = bs->bs_nexttbtt; | |
2310 | ||
d2182b69 JP |
2311 | ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim); |
2312 | ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt); | |
2313 | ath_dbg(common, BEACON, "beacon period %d\n", beaconintval); | |
2314 | ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod); | |
f078f209 | 2315 | |
7d0d0df0 S |
2316 | ENABLE_REGWRITE_BUFFER(ah); |
2317 | ||
f1dc5600 S |
2318 | REG_WRITE(ah, AR_NEXT_DTIM, |
2319 | TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP)); | |
2320 | REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP)); | |
f078f209 | 2321 | |
f1dc5600 S |
2322 | REG_WRITE(ah, AR_SLEEP1, |
2323 | SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT) | |
2324 | | AR_SLEEP1_ASSUME_DTIM); | |
f078f209 | 2325 | |
f1dc5600 S |
2326 | if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP) |
2327 | beacontimeout = (BEACON_TIMEOUT_VAL << 3); | |
2328 | else | |
2329 | beacontimeout = MIN_BEACON_TIMEOUT_VAL; | |
f078f209 | 2330 | |
f1dc5600 S |
2331 | REG_WRITE(ah, AR_SLEEP2, |
2332 | SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT)); | |
f078f209 | 2333 | |
f1dc5600 S |
2334 | REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval)); |
2335 | REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod)); | |
f078f209 | 2336 | |
7d0d0df0 | 2337 | REGWRITE_BUFFER_FLUSH(ah); |
7d0d0df0 | 2338 | |
f1dc5600 S |
2339 | REG_SET_BIT(ah, AR_TIMER_MODE, |
2340 | AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN | | |
2341 | AR_DTIM_TIMER_EN); | |
f078f209 | 2342 | |
4af9cf4f S |
2343 | /* TSF Out of Range Threshold */ |
2344 | REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold); | |
f078f209 | 2345 | } |
7322fd19 | 2346 | EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers); |
f078f209 | 2347 | |
f1dc5600 S |
2348 | /*******************/ |
2349 | /* HW Capabilities */ | |
2350 | /*******************/ | |
2351 | ||
6054069a FF |
2352 | static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask) |
2353 | { | |
2354 | eeprom_chainmask &= chip_chainmask; | |
2355 | if (eeprom_chainmask) | |
2356 | return eeprom_chainmask; | |
2357 | else | |
2358 | return chip_chainmask; | |
2359 | } | |
2360 | ||
9a66af33 ZK |
2361 | /** |
2362 | * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset | |
2363 | * @ah: the atheros hardware data structure | |
2364 | * | |
2365 | * We enable DFS support upstream on chipsets which have passed a series | |
2366 | * of tests. The testing requirements are going to be documented. Desired | |
2367 | * test requirements are documented at: | |
2368 | * | |
2369 | * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs | |
2370 | * | |
2371 | * Once a new chipset gets properly tested an individual commit can be used | |
2372 | * to document the testing for DFS for that chipset. | |
2373 | */ | |
2374 | static bool ath9k_hw_dfs_tested(struct ath_hw *ah) | |
2375 | { | |
2376 | ||
2377 | switch (ah->hw_version.macVersion) { | |
2378 | /* AR9580 will likely be our first target to get testing on */ | |
2379 | case AR_SREV_VERSION_9580: | |
2380 | default: | |
2381 | return false; | |
2382 | } | |
2383 | } | |
2384 | ||
a9a29ce6 | 2385 | int ath9k_hw_fill_cap_info(struct ath_hw *ah) |
f078f209 | 2386 | { |
2660b81a | 2387 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
608b88cb | 2388 | struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); |
c46917bb | 2389 | struct ath_common *common = ath9k_hw_common(ah); |
6054069a | 2390 | unsigned int chip_chainmask; |
608b88cb | 2391 | |
0ff2b5c0 | 2392 | u16 eeval; |
47c80de6 | 2393 | u8 ant_div_ctl1, tx_chainmask, rx_chainmask; |
f078f209 | 2394 | |
f74df6fb | 2395 | eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0); |
608b88cb | 2396 | regulatory->current_rd = eeval; |
f078f209 | 2397 | |
2660b81a | 2398 | if (ah->opmode != NL80211_IFTYPE_AP && |
d535a42a | 2399 | ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) { |
608b88cb LR |
2400 | if (regulatory->current_rd == 0x64 || |
2401 | regulatory->current_rd == 0x65) | |
2402 | regulatory->current_rd += 5; | |
2403 | else if (regulatory->current_rd == 0x41) | |
2404 | regulatory->current_rd = 0x43; | |
d2182b69 JP |
2405 | ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n", |
2406 | regulatory->current_rd); | |
f1dc5600 | 2407 | } |
f078f209 | 2408 | |
f74df6fb | 2409 | eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE); |
a9a29ce6 | 2410 | if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) { |
3800276a JP |
2411 | ath_err(common, |
2412 | "no band has been marked as supported in EEPROM\n"); | |
a9a29ce6 GJ |
2413 | return -EINVAL; |
2414 | } | |
2415 | ||
d4659912 FF |
2416 | if (eeval & AR5416_OPFLAGS_11A) |
2417 | pCap->hw_caps |= ATH9K_HW_CAP_5GHZ; | |
f078f209 | 2418 | |
d4659912 FF |
2419 | if (eeval & AR5416_OPFLAGS_11G) |
2420 | pCap->hw_caps |= ATH9K_HW_CAP_2GHZ; | |
f1dc5600 | 2421 | |
6054069a FF |
2422 | if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah)) |
2423 | chip_chainmask = 1; | |
ba5736a5 MSS |
2424 | else if (AR_SREV_9462(ah)) |
2425 | chip_chainmask = 3; | |
6054069a FF |
2426 | else if (!AR_SREV_9280_20_OR_LATER(ah)) |
2427 | chip_chainmask = 7; | |
2428 | else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah)) | |
2429 | chip_chainmask = 3; | |
2430 | else | |
2431 | chip_chainmask = 7; | |
2432 | ||
f74df6fb | 2433 | pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK); |
d7e7d229 LR |
2434 | /* |
2435 | * For AR9271 we will temporarilly uses the rx chainmax as read from | |
2436 | * the EEPROM. | |
2437 | */ | |
8147f5de | 2438 | if ((ah->hw_version.devid == AR5416_DEVID_PCI) && |
d7e7d229 LR |
2439 | !(eeval & AR5416_OPFLAGS_11A) && |
2440 | !(AR_SREV_9271(ah))) | |
2441 | /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */ | |
8147f5de | 2442 | pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7; |
598cdd52 FF |
2443 | else if (AR_SREV_9100(ah)) |
2444 | pCap->rx_chainmask = 0x7; | |
8147f5de | 2445 | else |
d7e7d229 | 2446 | /* Use rx_chainmask from EEPROM. */ |
8147f5de | 2447 | pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK); |
f078f209 | 2448 | |
6054069a FF |
2449 | pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask); |
2450 | pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask); | |
82b2d334 FF |
2451 | ah->txchainmask = pCap->tx_chainmask; |
2452 | ah->rxchainmask = pCap->rx_chainmask; | |
6054069a | 2453 | |
7a37081e | 2454 | ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA; |
f078f209 | 2455 | |
02d2ebb2 FF |
2456 | /* enable key search for every frame in an aggregate */ |
2457 | if (AR_SREV_9300_20_OR_LATER(ah)) | |
2458 | ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH; | |
2459 | ||
ce2220d1 BR |
2460 | common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM; |
2461 | ||
0db156e9 | 2462 | if (ah->hw_version.devid != AR2427_DEVID_PCIE) |
f1dc5600 S |
2463 | pCap->hw_caps |= ATH9K_HW_CAP_HT; |
2464 | else | |
2465 | pCap->hw_caps &= ~ATH9K_HW_CAP_HT; | |
f078f209 | 2466 | |
5b5fa355 S |
2467 | if (AR_SREV_9271(ah)) |
2468 | pCap->num_gpio_pins = AR9271_NUM_GPIO; | |
88c1f4f6 S |
2469 | else if (AR_DEVID_7010(ah)) |
2470 | pCap->num_gpio_pins = AR7010_NUM_GPIO; | |
6321eb09 MSS |
2471 | else if (AR_SREV_9300_20_OR_LATER(ah)) |
2472 | pCap->num_gpio_pins = AR9300_NUM_GPIO; | |
2473 | else if (AR_SREV_9287_11_OR_LATER(ah)) | |
2474 | pCap->num_gpio_pins = AR9287_NUM_GPIO; | |
e17f83ea | 2475 | else if (AR_SREV_9285_12_OR_LATER(ah)) |
cb33c412 | 2476 | pCap->num_gpio_pins = AR9285_NUM_GPIO; |
7a37081e | 2477 | else if (AR_SREV_9280_20_OR_LATER(ah)) |
f1dc5600 S |
2478 | pCap->num_gpio_pins = AR928X_NUM_GPIO; |
2479 | else | |
2480 | pCap->num_gpio_pins = AR_NUM_GPIO; | |
f078f209 | 2481 | |
1b2538b2 | 2482 | if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) |
f1dc5600 | 2483 | pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX; |
1b2538b2 | 2484 | else |
f1dc5600 | 2485 | pCap->rts_aggr_limit = (8 * 1024); |
f078f209 | 2486 | |
e97275cb | 2487 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
2660b81a S |
2488 | ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT); |
2489 | if (ah->rfsilent & EEP_RFSILENT_ENABLED) { | |
2490 | ah->rfkill_gpio = | |
2491 | MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL); | |
2492 | ah->rfkill_polarity = | |
2493 | MS(ah->rfsilent, EEP_RFSILENT_POLARITY); | |
f1dc5600 S |
2494 | |
2495 | pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT; | |
f078f209 | 2496 | } |
f1dc5600 | 2497 | #endif |
d5d1154f | 2498 | if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah)) |
bde748a4 VN |
2499 | pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP; |
2500 | else | |
2501 | pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP; | |
f078f209 | 2502 | |
e7594072 | 2503 | if (AR_SREV_9280(ah) || AR_SREV_9285(ah)) |
f1dc5600 S |
2504 | pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS; |
2505 | else | |
2506 | pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS; | |
f078f209 | 2507 | |
ceb26445 | 2508 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
784ad503 | 2509 | pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK; |
0e707a94 | 2510 | if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah)) |
784ad503 VT |
2511 | pCap->hw_caps |= ATH9K_HW_CAP_LDPC; |
2512 | ||
ceb26445 VT |
2513 | pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH; |
2514 | pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH; | |
2515 | pCap->rx_status_len = sizeof(struct ar9003_rxs); | |
162c3be3 | 2516 | pCap->tx_desc_len = sizeof(struct ar9003_txc); |
5088c2f1 | 2517 | pCap->txs_len = sizeof(struct ar9003_txs); |
6f481010 LR |
2518 | if (!ah->config.paprd_disable && |
2519 | ah->eep_ops->get_eeprom(ah, EEP_PAPRD)) | |
4935250a | 2520 | pCap->hw_caps |= ATH9K_HW_CAP_PAPRD; |
162c3be3 VT |
2521 | } else { |
2522 | pCap->tx_desc_len = sizeof(struct ath_desc); | |
a949b172 | 2523 | if (AR_SREV_9280_20(ah)) |
6b42e8d0 | 2524 | pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK; |
ceb26445 | 2525 | } |
1adf02ff | 2526 | |
6c84ce08 VT |
2527 | if (AR_SREV_9300_20_OR_LATER(ah)) |
2528 | pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED; | |
2529 | ||
6ee63f55 SB |
2530 | if (AR_SREV_9300_20_OR_LATER(ah)) |
2531 | ah->ent_mode = REG_READ(ah, AR_ENT_OTP); | |
2532 | ||
a42acef0 | 2533 | if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah)) |
6473d24d VT |
2534 | pCap->hw_caps |= ATH9K_HW_CAP_SGI_20; |
2535 | ||
754dc536 VT |
2536 | if (AR_SREV_9285(ah)) |
2537 | if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) { | |
2538 | ant_div_ctl1 = | |
2539 | ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1); | |
2540 | if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) | |
2541 | pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB; | |
2542 | } | |
ea066d5a MSS |
2543 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
2544 | if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE)) | |
2545 | pCap->hw_caps |= ATH9K_HW_CAP_APM; | |
2546 | } | |
2547 | ||
2548 | ||
431da56a | 2549 | if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) { |
21d2c63a MSS |
2550 | ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1); |
2551 | /* | |
2552 | * enable the diversity-combining algorithm only when | |
2553 | * both enable_lna_div and enable_fast_div are set | |
2554 | * Table for Diversity | |
2555 | * ant_div_alt_lnaconf bit 0-1 | |
2556 | * ant_div_main_lnaconf bit 2-3 | |
2557 | * ant_div_alt_gaintb bit 4 | |
2558 | * ant_div_main_gaintb bit 5 | |
2559 | * enable_ant_div_lnadiv bit 6 | |
2560 | * enable_ant_fast_div bit 7 | |
2561 | */ | |
2562 | if ((ant_div_ctl1 >> 0x6) == 0x3) | |
2563 | pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB; | |
2564 | } | |
754dc536 | 2565 | |
8060e169 VT |
2566 | if (AR_SREV_9485_10(ah)) { |
2567 | pCap->pcie_lcr_extsync_en = true; | |
2568 | pCap->pcie_lcr_offset = 0x80; | |
2569 | } | |
2570 | ||
9a66af33 ZK |
2571 | if (ath9k_hw_dfs_tested(ah)) |
2572 | pCap->hw_caps |= ATH9K_HW_CAP_DFS; | |
2573 | ||
47c80de6 VT |
2574 | tx_chainmask = pCap->tx_chainmask; |
2575 | rx_chainmask = pCap->rx_chainmask; | |
2576 | while (tx_chainmask || rx_chainmask) { | |
2577 | if (tx_chainmask & BIT(0)) | |
2578 | pCap->max_txchains++; | |
2579 | if (rx_chainmask & BIT(0)) | |
2580 | pCap->max_rxchains++; | |
2581 | ||
2582 | tx_chainmask >>= 1; | |
2583 | rx_chainmask >>= 1; | |
2584 | } | |
2585 | ||
8ad74c4d RM |
2586 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
2587 | ah->enabled_cals |= TX_IQ_CAL; | |
6fea593d | 2588 | if (AR_SREV_9485_OR_LATER(ah)) |
8ad74c4d RM |
2589 | ah->enabled_cals |= TX_IQ_ON_AGC_CAL; |
2590 | } | |
3789d59c MSS |
2591 | |
2592 | if (AR_SREV_9462(ah)) { | |
2593 | ||
2594 | if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE)) | |
2595 | pCap->hw_caps |= ATH9K_HW_CAP_MCI; | |
2596 | ||
2597 | if (AR_SREV_9462_20(ah)) | |
2598 | pCap->hw_caps |= ATH9K_HW_CAP_RTT; | |
2599 | ||
2600 | } | |
2601 | ||
324c74ad | 2602 | |
a9a29ce6 | 2603 | return 0; |
f078f209 LR |
2604 | } |
2605 | ||
f1dc5600 S |
2606 | /****************************/ |
2607 | /* GPIO / RFKILL / Antennae */ | |
2608 | /****************************/ | |
f078f209 | 2609 | |
cbe61d8a | 2610 | static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah, |
f1dc5600 S |
2611 | u32 gpio, u32 type) |
2612 | { | |
2613 | int addr; | |
2614 | u32 gpio_shift, tmp; | |
f078f209 | 2615 | |
f1dc5600 S |
2616 | if (gpio > 11) |
2617 | addr = AR_GPIO_OUTPUT_MUX3; | |
2618 | else if (gpio > 5) | |
2619 | addr = AR_GPIO_OUTPUT_MUX2; | |
2620 | else | |
2621 | addr = AR_GPIO_OUTPUT_MUX1; | |
f078f209 | 2622 | |
f1dc5600 | 2623 | gpio_shift = (gpio % 6) * 5; |
f078f209 | 2624 | |
f1dc5600 S |
2625 | if (AR_SREV_9280_20_OR_LATER(ah) |
2626 | || (addr != AR_GPIO_OUTPUT_MUX1)) { | |
2627 | REG_RMW(ah, addr, (type << gpio_shift), | |
2628 | (0x1f << gpio_shift)); | |
f078f209 | 2629 | } else { |
f1dc5600 S |
2630 | tmp = REG_READ(ah, addr); |
2631 | tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0); | |
2632 | tmp &= ~(0x1f << gpio_shift); | |
2633 | tmp |= (type << gpio_shift); | |
2634 | REG_WRITE(ah, addr, tmp); | |
f078f209 | 2635 | } |
f078f209 LR |
2636 | } |
2637 | ||
cbe61d8a | 2638 | void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio) |
f078f209 | 2639 | { |
f1dc5600 | 2640 | u32 gpio_shift; |
f078f209 | 2641 | |
9680e8a3 | 2642 | BUG_ON(gpio >= ah->caps.num_gpio_pins); |
f078f209 | 2643 | |
88c1f4f6 S |
2644 | if (AR_DEVID_7010(ah)) { |
2645 | gpio_shift = gpio; | |
2646 | REG_RMW(ah, AR7010_GPIO_OE, | |
2647 | (AR7010_GPIO_OE_AS_INPUT << gpio_shift), | |
2648 | (AR7010_GPIO_OE_MASK << gpio_shift)); | |
2649 | return; | |
2650 | } | |
f078f209 | 2651 | |
88c1f4f6 | 2652 | gpio_shift = gpio << 1; |
f1dc5600 S |
2653 | REG_RMW(ah, |
2654 | AR_GPIO_OE_OUT, | |
2655 | (AR_GPIO_OE_OUT_DRV_NO << gpio_shift), | |
2656 | (AR_GPIO_OE_OUT_DRV << gpio_shift)); | |
f078f209 | 2657 | } |
7322fd19 | 2658 | EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input); |
f078f209 | 2659 | |
cbe61d8a | 2660 | u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio) |
f078f209 | 2661 | { |
cb33c412 SB |
2662 | #define MS_REG_READ(x, y) \ |
2663 | (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y))) | |
2664 | ||
2660b81a | 2665 | if (gpio >= ah->caps.num_gpio_pins) |
f1dc5600 | 2666 | return 0xffffffff; |
f078f209 | 2667 | |
88c1f4f6 S |
2668 | if (AR_DEVID_7010(ah)) { |
2669 | u32 val; | |
2670 | val = REG_READ(ah, AR7010_GPIO_IN); | |
2671 | return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0; | |
2672 | } else if (AR_SREV_9300_20_OR_LATER(ah)) | |
9306990a VT |
2673 | return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) & |
2674 | AR_GPIO_BIT(gpio)) != 0; | |
783dfca1 | 2675 | else if (AR_SREV_9271(ah)) |
5b5fa355 | 2676 | return MS_REG_READ(AR9271, gpio) != 0; |
a42acef0 | 2677 | else if (AR_SREV_9287_11_OR_LATER(ah)) |
ac88b6ec | 2678 | return MS_REG_READ(AR9287, gpio) != 0; |
e17f83ea | 2679 | else if (AR_SREV_9285_12_OR_LATER(ah)) |
cb33c412 | 2680 | return MS_REG_READ(AR9285, gpio) != 0; |
7a37081e | 2681 | else if (AR_SREV_9280_20_OR_LATER(ah)) |
cb33c412 SB |
2682 | return MS_REG_READ(AR928X, gpio) != 0; |
2683 | else | |
2684 | return MS_REG_READ(AR, gpio) != 0; | |
f078f209 | 2685 | } |
7322fd19 | 2686 | EXPORT_SYMBOL(ath9k_hw_gpio_get); |
f078f209 | 2687 | |
cbe61d8a | 2688 | void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio, |
f1dc5600 | 2689 | u32 ah_signal_type) |
f078f209 | 2690 | { |
f1dc5600 | 2691 | u32 gpio_shift; |
f078f209 | 2692 | |
88c1f4f6 S |
2693 | if (AR_DEVID_7010(ah)) { |
2694 | gpio_shift = gpio; | |
2695 | REG_RMW(ah, AR7010_GPIO_OE, | |
2696 | (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift), | |
2697 | (AR7010_GPIO_OE_MASK << gpio_shift)); | |
2698 | return; | |
2699 | } | |
f078f209 | 2700 | |
88c1f4f6 | 2701 | ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type); |
f1dc5600 | 2702 | gpio_shift = 2 * gpio; |
f1dc5600 S |
2703 | REG_RMW(ah, |
2704 | AR_GPIO_OE_OUT, | |
2705 | (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift), | |
2706 | (AR_GPIO_OE_OUT_DRV << gpio_shift)); | |
f078f209 | 2707 | } |
7322fd19 | 2708 | EXPORT_SYMBOL(ath9k_hw_cfg_output); |
f078f209 | 2709 | |
cbe61d8a | 2710 | void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val) |
f078f209 | 2711 | { |
88c1f4f6 S |
2712 | if (AR_DEVID_7010(ah)) { |
2713 | val = val ? 0 : 1; | |
2714 | REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio), | |
2715 | AR_GPIO_BIT(gpio)); | |
2716 | return; | |
2717 | } | |
2718 | ||
5b5fa355 S |
2719 | if (AR_SREV_9271(ah)) |
2720 | val = ~val; | |
2721 | ||
f1dc5600 S |
2722 | REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio), |
2723 | AR_GPIO_BIT(gpio)); | |
f078f209 | 2724 | } |
7322fd19 | 2725 | EXPORT_SYMBOL(ath9k_hw_set_gpio); |
f078f209 | 2726 | |
cbe61d8a | 2727 | void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna) |
f078f209 | 2728 | { |
f1dc5600 | 2729 | REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7)); |
f078f209 | 2730 | } |
7322fd19 | 2731 | EXPORT_SYMBOL(ath9k_hw_setantenna); |
f078f209 | 2732 | |
f1dc5600 S |
2733 | /*********************/ |
2734 | /* General Operation */ | |
2735 | /*********************/ | |
2736 | ||
cbe61d8a | 2737 | u32 ath9k_hw_getrxfilter(struct ath_hw *ah) |
f078f209 | 2738 | { |
f1dc5600 S |
2739 | u32 bits = REG_READ(ah, AR_RX_FILTER); |
2740 | u32 phybits = REG_READ(ah, AR_PHY_ERR); | |
f078f209 | 2741 | |
f1dc5600 S |
2742 | if (phybits & AR_PHY_ERR_RADAR) |
2743 | bits |= ATH9K_RX_FILTER_PHYRADAR; | |
2744 | if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING)) | |
2745 | bits |= ATH9K_RX_FILTER_PHYERR; | |
dc2222a8 | 2746 | |
f1dc5600 | 2747 | return bits; |
f078f209 | 2748 | } |
7322fd19 | 2749 | EXPORT_SYMBOL(ath9k_hw_getrxfilter); |
f078f209 | 2750 | |
cbe61d8a | 2751 | void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits) |
f078f209 | 2752 | { |
f1dc5600 | 2753 | u32 phybits; |
f078f209 | 2754 | |
7d0d0df0 S |
2755 | ENABLE_REGWRITE_BUFFER(ah); |
2756 | ||
423e38e8 | 2757 | if (AR_SREV_9462(ah)) |
2577c6e8 SB |
2758 | bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER; |
2759 | ||
7ea310be S |
2760 | REG_WRITE(ah, AR_RX_FILTER, bits); |
2761 | ||
f1dc5600 S |
2762 | phybits = 0; |
2763 | if (bits & ATH9K_RX_FILTER_PHYRADAR) | |
2764 | phybits |= AR_PHY_ERR_RADAR; | |
2765 | if (bits & ATH9K_RX_FILTER_PHYERR) | |
2766 | phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING; | |
2767 | REG_WRITE(ah, AR_PHY_ERR, phybits); | |
f078f209 | 2768 | |
f1dc5600 | 2769 | if (phybits) |
ca7a4deb | 2770 | REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA); |
f1dc5600 | 2771 | else |
ca7a4deb | 2772 | REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA); |
7d0d0df0 S |
2773 | |
2774 | REGWRITE_BUFFER_FLUSH(ah); | |
f1dc5600 | 2775 | } |
7322fd19 | 2776 | EXPORT_SYMBOL(ath9k_hw_setrxfilter); |
f078f209 | 2777 | |
cbe61d8a | 2778 | bool ath9k_hw_phy_disable(struct ath_hw *ah) |
f1dc5600 | 2779 | { |
63a75b91 SB |
2780 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM)) |
2781 | return false; | |
2782 | ||
2783 | ath9k_hw_init_pll(ah, NULL); | |
8efa7a81 | 2784 | ah->htc_reset_init = true; |
63a75b91 | 2785 | return true; |
f1dc5600 | 2786 | } |
7322fd19 | 2787 | EXPORT_SYMBOL(ath9k_hw_phy_disable); |
f078f209 | 2788 | |
cbe61d8a | 2789 | bool ath9k_hw_disable(struct ath_hw *ah) |
f1dc5600 | 2790 | { |
9ecdef4b | 2791 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
f1dc5600 | 2792 | return false; |
f078f209 | 2793 | |
63a75b91 SB |
2794 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD)) |
2795 | return false; | |
2796 | ||
2797 | ath9k_hw_init_pll(ah, NULL); | |
2798 | return true; | |
f078f209 | 2799 | } |
7322fd19 | 2800 | EXPORT_SYMBOL(ath9k_hw_disable); |
f078f209 | 2801 | |
ca2c68cc FF |
2802 | static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan) |
2803 | { | |
2804 | enum eeprom_param gain_param; | |
2805 | ||
2806 | if (IS_CHAN_2GHZ(chan)) | |
2807 | gain_param = EEP_ANTENNA_GAIN_2G; | |
2808 | else | |
2809 | gain_param = EEP_ANTENNA_GAIN_5G; | |
2810 | ||
2811 | return ah->eep_ops->get_eeprom(ah, gain_param); | |
2812 | } | |
2813 | ||
64ea57d0 GJ |
2814 | void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan, |
2815 | bool test) | |
ca2c68cc FF |
2816 | { |
2817 | struct ath_regulatory *reg = ath9k_hw_regulatory(ah); | |
2818 | struct ieee80211_channel *channel; | |
2819 | int chan_pwr, new_pwr, max_gain; | |
2820 | int ant_gain, ant_reduction = 0; | |
2821 | ||
2822 | if (!chan) | |
2823 | return; | |
2824 | ||
2825 | channel = chan->chan; | |
2826 | chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER); | |
2827 | new_pwr = min_t(int, chan_pwr, reg->power_limit); | |
2828 | max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2; | |
2829 | ||
2830 | ant_gain = get_antenna_gain(ah, chan); | |
2831 | if (ant_gain > max_gain) | |
2832 | ant_reduction = ant_gain - max_gain; | |
2833 | ||
2834 | ah->eep_ops->set_txpower(ah, chan, | |
2835 | ath9k_regd_get_ctl(reg, chan), | |
64ea57d0 | 2836 | ant_reduction, new_pwr, test); |
ca2c68cc FF |
2837 | } |
2838 | ||
de40f316 | 2839 | void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) |
f078f209 | 2840 | { |
ca2c68cc | 2841 | struct ath_regulatory *reg = ath9k_hw_regulatory(ah); |
2660b81a | 2842 | struct ath9k_channel *chan = ah->curchan; |
5f8e077c | 2843 | struct ieee80211_channel *channel = chan->chan; |
9c204b46 | 2844 | |
48ef5c42 | 2845 | reg->power_limit = min_t(u32, limit, MAX_RATE_POWER); |
9c204b46 | 2846 | if (test) |
ca2c68cc | 2847 | channel->max_power = MAX_RATE_POWER / 2; |
f078f209 | 2848 | |
64ea57d0 | 2849 | ath9k_hw_apply_txpower(ah, chan, test); |
6f255425 | 2850 | |
ca2c68cc FF |
2851 | if (test) |
2852 | channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2); | |
6f255425 | 2853 | } |
7322fd19 | 2854 | EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit); |
6f255425 | 2855 | |
cbe61d8a | 2856 | void ath9k_hw_setopmode(struct ath_hw *ah) |
f078f209 | 2857 | { |
2660b81a | 2858 | ath9k_hw_set_operating_mode(ah, ah->opmode); |
f078f209 | 2859 | } |
7322fd19 | 2860 | EXPORT_SYMBOL(ath9k_hw_setopmode); |
f078f209 | 2861 | |
cbe61d8a | 2862 | void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1) |
f078f209 | 2863 | { |
f1dc5600 S |
2864 | REG_WRITE(ah, AR_MCAST_FIL0, filter0); |
2865 | REG_WRITE(ah, AR_MCAST_FIL1, filter1); | |
f078f209 | 2866 | } |
7322fd19 | 2867 | EXPORT_SYMBOL(ath9k_hw_setmcastfilter); |
f078f209 | 2868 | |
f2b2143e | 2869 | void ath9k_hw_write_associd(struct ath_hw *ah) |
f078f209 | 2870 | { |
1510718d LR |
2871 | struct ath_common *common = ath9k_hw_common(ah); |
2872 | ||
2873 | REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid)); | |
2874 | REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) | | |
2875 | ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S)); | |
f078f209 | 2876 | } |
7322fd19 | 2877 | EXPORT_SYMBOL(ath9k_hw_write_associd); |
f078f209 | 2878 | |
1c0fc65e BP |
2879 | #define ATH9K_MAX_TSF_READ 10 |
2880 | ||
cbe61d8a | 2881 | u64 ath9k_hw_gettsf64(struct ath_hw *ah) |
f078f209 | 2882 | { |
1c0fc65e BP |
2883 | u32 tsf_lower, tsf_upper1, tsf_upper2; |
2884 | int i; | |
2885 | ||
2886 | tsf_upper1 = REG_READ(ah, AR_TSF_U32); | |
2887 | for (i = 0; i < ATH9K_MAX_TSF_READ; i++) { | |
2888 | tsf_lower = REG_READ(ah, AR_TSF_L32); | |
2889 | tsf_upper2 = REG_READ(ah, AR_TSF_U32); | |
2890 | if (tsf_upper2 == tsf_upper1) | |
2891 | break; | |
2892 | tsf_upper1 = tsf_upper2; | |
2893 | } | |
f078f209 | 2894 | |
1c0fc65e | 2895 | WARN_ON( i == ATH9K_MAX_TSF_READ ); |
f078f209 | 2896 | |
1c0fc65e | 2897 | return (((u64)tsf_upper1 << 32) | tsf_lower); |
f1dc5600 | 2898 | } |
7322fd19 | 2899 | EXPORT_SYMBOL(ath9k_hw_gettsf64); |
f078f209 | 2900 | |
cbe61d8a | 2901 | void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64) |
27abe060 | 2902 | { |
27abe060 | 2903 | REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff); |
b9a16197 | 2904 | REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff); |
27abe060 | 2905 | } |
7322fd19 | 2906 | EXPORT_SYMBOL(ath9k_hw_settsf64); |
27abe060 | 2907 | |
cbe61d8a | 2908 | void ath9k_hw_reset_tsf(struct ath_hw *ah) |
f1dc5600 | 2909 | { |
f9b604f6 GJ |
2910 | if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0, |
2911 | AH_TSF_WRITE_TIMEOUT)) | |
d2182b69 | 2912 | ath_dbg(ath9k_hw_common(ah), RESET, |
226afe68 | 2913 | "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n"); |
f9b604f6 | 2914 | |
f1dc5600 S |
2915 | REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE); |
2916 | } | |
7322fd19 | 2917 | EXPORT_SYMBOL(ath9k_hw_reset_tsf); |
f078f209 | 2918 | |
54e4cec6 | 2919 | void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting) |
f1dc5600 | 2920 | { |
f1dc5600 | 2921 | if (setting) |
2660b81a | 2922 | ah->misc_mode |= AR_PCU_TX_ADD_TSF; |
f1dc5600 | 2923 | else |
2660b81a | 2924 | ah->misc_mode &= ~AR_PCU_TX_ADD_TSF; |
f1dc5600 | 2925 | } |
7322fd19 | 2926 | EXPORT_SYMBOL(ath9k_hw_set_tsfadjust); |
f078f209 | 2927 | |
25c56eec | 2928 | void ath9k_hw_set11nmac2040(struct ath_hw *ah) |
f1dc5600 | 2929 | { |
25c56eec | 2930 | struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; |
f1dc5600 S |
2931 | u32 macmode; |
2932 | ||
25c56eec | 2933 | if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca) |
f1dc5600 S |
2934 | macmode = AR_2040_JOINED_RX_CLEAR; |
2935 | else | |
2936 | macmode = 0; | |
f078f209 | 2937 | |
f1dc5600 | 2938 | REG_WRITE(ah, AR_2040_MODE, macmode); |
f078f209 | 2939 | } |
ff155a45 VT |
2940 | |
2941 | /* HW Generic timers configuration */ | |
2942 | ||
2943 | static const struct ath_gen_timer_configuration gen_tmr_configuration[] = | |
2944 | { | |
2945 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2946 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2947 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2948 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2949 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2950 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2951 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2952 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, | |
2953 | {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001}, | |
2954 | {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4, | |
2955 | AR_NDP2_TIMER_MODE, 0x0002}, | |
2956 | {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4, | |
2957 | AR_NDP2_TIMER_MODE, 0x0004}, | |
2958 | {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4, | |
2959 | AR_NDP2_TIMER_MODE, 0x0008}, | |
2960 | {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4, | |
2961 | AR_NDP2_TIMER_MODE, 0x0010}, | |
2962 | {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4, | |
2963 | AR_NDP2_TIMER_MODE, 0x0020}, | |
2964 | {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4, | |
2965 | AR_NDP2_TIMER_MODE, 0x0040}, | |
2966 | {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4, | |
2967 | AR_NDP2_TIMER_MODE, 0x0080} | |
2968 | }; | |
2969 | ||
2970 | /* HW generic timer primitives */ | |
2971 | ||
2972 | /* compute and clear index of rightmost 1 */ | |
2973 | static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask) | |
2974 | { | |
2975 | u32 b; | |
2976 | ||
2977 | b = *mask; | |
2978 | b &= (0-b); | |
2979 | *mask &= ~b; | |
2980 | b *= debruijn32; | |
2981 | b >>= 27; | |
2982 | ||
2983 | return timer_table->gen_timer_index[b]; | |
2984 | } | |
2985 | ||
dd347f2f | 2986 | u32 ath9k_hw_gettsf32(struct ath_hw *ah) |
ff155a45 VT |
2987 | { |
2988 | return REG_READ(ah, AR_TSF_L32); | |
2989 | } | |
dd347f2f | 2990 | EXPORT_SYMBOL(ath9k_hw_gettsf32); |
ff155a45 VT |
2991 | |
2992 | struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah, | |
2993 | void (*trigger)(void *), | |
2994 | void (*overflow)(void *), | |
2995 | void *arg, | |
2996 | u8 timer_index) | |
2997 | { | |
2998 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; | |
2999 | struct ath_gen_timer *timer; | |
3000 | ||
3001 | timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL); | |
3002 | ||
3003 | if (timer == NULL) { | |
3800276a JP |
3004 | ath_err(ath9k_hw_common(ah), |
3005 | "Failed to allocate memory for hw timer[%d]\n", | |
3006 | timer_index); | |
ff155a45 VT |
3007 | return NULL; |
3008 | } | |
3009 | ||
3010 | /* allocate a hardware generic timer slot */ | |
3011 | timer_table->timers[timer_index] = timer; | |
3012 | timer->index = timer_index; | |
3013 | timer->trigger = trigger; | |
3014 | timer->overflow = overflow; | |
3015 | timer->arg = arg; | |
3016 | ||
3017 | return timer; | |
3018 | } | |
7322fd19 | 3019 | EXPORT_SYMBOL(ath_gen_timer_alloc); |
ff155a45 | 3020 | |
cd9bf689 LR |
3021 | void ath9k_hw_gen_timer_start(struct ath_hw *ah, |
3022 | struct ath_gen_timer *timer, | |
788f6875 | 3023 | u32 trig_timeout, |
cd9bf689 | 3024 | u32 timer_period) |
ff155a45 VT |
3025 | { |
3026 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; | |
788f6875 | 3027 | u32 tsf, timer_next; |
ff155a45 VT |
3028 | |
3029 | BUG_ON(!timer_period); | |
3030 | ||
3031 | set_bit(timer->index, &timer_table->timer_mask.timer_bits); | |
3032 | ||
3033 | tsf = ath9k_hw_gettsf32(ah); | |
3034 | ||
788f6875 VT |
3035 | timer_next = tsf + trig_timeout; |
3036 | ||
d2182b69 | 3037 | ath_dbg(ath9k_hw_common(ah), HWTIMER, |
226afe68 JP |
3038 | "current tsf %x period %x timer_next %x\n", |
3039 | tsf, timer_period, timer_next); | |
ff155a45 | 3040 | |
ff155a45 VT |
3041 | /* |
3042 | * Program generic timer registers | |
3043 | */ | |
3044 | REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr, | |
3045 | timer_next); | |
3046 | REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr, | |
3047 | timer_period); | |
3048 | REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr, | |
3049 | gen_tmr_configuration[timer->index].mode_mask); | |
3050 | ||
423e38e8 | 3051 | if (AR_SREV_9462(ah)) { |
2577c6e8 | 3052 | /* |
423e38e8 | 3053 | * Starting from AR9462, each generic timer can select which tsf |
2577c6e8 SB |
3054 | * to use. But we still follow the old rule, 0 - 7 use tsf and |
3055 | * 8 - 15 use tsf2. | |
3056 | */ | |
3057 | if ((timer->index < AR_GEN_TIMER_BANK_1_LEN)) | |
3058 | REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL, | |
3059 | (1 << timer->index)); | |
3060 | else | |
3061 | REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL, | |
3062 | (1 << timer->index)); | |
3063 | } | |
3064 | ||
ff155a45 VT |
3065 | /* Enable both trigger and thresh interrupt masks */ |
3066 | REG_SET_BIT(ah, AR_IMR_S5, | |
3067 | (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) | | |
3068 | SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG))); | |
ff155a45 | 3069 | } |
7322fd19 | 3070 | EXPORT_SYMBOL(ath9k_hw_gen_timer_start); |
ff155a45 | 3071 | |
cd9bf689 | 3072 | void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) |
ff155a45 VT |
3073 | { |
3074 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; | |
3075 | ||
3076 | if ((timer->index < AR_FIRST_NDP_TIMER) || | |
3077 | (timer->index >= ATH_MAX_GEN_TIMER)) { | |
3078 | return; | |
3079 | } | |
3080 | ||
3081 | /* Clear generic timer enable bits. */ | |
3082 | REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr, | |
3083 | gen_tmr_configuration[timer->index].mode_mask); | |
3084 | ||
3085 | /* Disable both trigger and thresh interrupt masks */ | |
3086 | REG_CLR_BIT(ah, AR_IMR_S5, | |
3087 | (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) | | |
3088 | SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG))); | |
3089 | ||
3090 | clear_bit(timer->index, &timer_table->timer_mask.timer_bits); | |
ff155a45 | 3091 | } |
7322fd19 | 3092 | EXPORT_SYMBOL(ath9k_hw_gen_timer_stop); |
ff155a45 VT |
3093 | |
3094 | void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer) | |
3095 | { | |
3096 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; | |
3097 | ||
3098 | /* free the hardware generic timer slot */ | |
3099 | timer_table->timers[timer->index] = NULL; | |
3100 | kfree(timer); | |
3101 | } | |
7322fd19 | 3102 | EXPORT_SYMBOL(ath_gen_timer_free); |
ff155a45 VT |
3103 | |
3104 | /* | |
3105 | * Generic Timer Interrupts handling | |
3106 | */ | |
3107 | void ath_gen_timer_isr(struct ath_hw *ah) | |
3108 | { | |
3109 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; | |
3110 | struct ath_gen_timer *timer; | |
c46917bb | 3111 | struct ath_common *common = ath9k_hw_common(ah); |
ff155a45 VT |
3112 | u32 trigger_mask, thresh_mask, index; |
3113 | ||
3114 | /* get hardware generic timer interrupt status */ | |
3115 | trigger_mask = ah->intr_gen_timer_trigger; | |
3116 | thresh_mask = ah->intr_gen_timer_thresh; | |
3117 | trigger_mask &= timer_table->timer_mask.val; | |
3118 | thresh_mask &= timer_table->timer_mask.val; | |
3119 | ||
3120 | trigger_mask &= ~thresh_mask; | |
3121 | ||
3122 | while (thresh_mask) { | |
3123 | index = rightmost_index(timer_table, &thresh_mask); | |
3124 | timer = timer_table->timers[index]; | |
3125 | BUG_ON(!timer); | |
d2182b69 JP |
3126 | ath_dbg(common, HWTIMER, "TSF overflow for Gen timer %d\n", |
3127 | index); | |
ff155a45 VT |
3128 | timer->overflow(timer->arg); |
3129 | } | |
3130 | ||
3131 | while (trigger_mask) { | |
3132 | index = rightmost_index(timer_table, &trigger_mask); | |
3133 | timer = timer_table->timers[index]; | |
3134 | BUG_ON(!timer); | |
d2182b69 | 3135 | ath_dbg(common, HWTIMER, |
226afe68 | 3136 | "Gen timer[%d] trigger\n", index); |
ff155a45 VT |
3137 | timer->trigger(timer->arg); |
3138 | } | |
3139 | } | |
7322fd19 | 3140 | EXPORT_SYMBOL(ath_gen_timer_isr); |
2da4f01a | 3141 | |
05020d23 S |
3142 | /********/ |
3143 | /* HTC */ | |
3144 | /********/ | |
3145 | ||
2da4f01a LR |
3146 | static struct { |
3147 | u32 version; | |
3148 | const char * name; | |
3149 | } ath_mac_bb_names[] = { | |
3150 | /* Devices with external radios */ | |
3151 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
3152 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
3153 | { AR_SREV_VERSION_9100, "9100" }, | |
3154 | { AR_SREV_VERSION_9160, "9160" }, | |
3155 | /* Single-chip solutions */ | |
3156 | { AR_SREV_VERSION_9280, "9280" }, | |
3157 | { AR_SREV_VERSION_9285, "9285" }, | |
11158472 LR |
3158 | { AR_SREV_VERSION_9287, "9287" }, |
3159 | { AR_SREV_VERSION_9271, "9271" }, | |
ec83903e | 3160 | { AR_SREV_VERSION_9300, "9300" }, |
2c8e5937 | 3161 | { AR_SREV_VERSION_9330, "9330" }, |
397e5d5b | 3162 | { AR_SREV_VERSION_9340, "9340" }, |
8f06ca2c | 3163 | { AR_SREV_VERSION_9485, "9485" }, |
423e38e8 | 3164 | { AR_SREV_VERSION_9462, "9462" }, |
2da4f01a LR |
3165 | }; |
3166 | ||
3167 | /* For devices with external radios */ | |
3168 | static struct { | |
3169 | u16 version; | |
3170 | const char * name; | |
3171 | } ath_rf_names[] = { | |
3172 | { 0, "5133" }, | |
3173 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
3174 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
3175 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
3176 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
3177 | }; | |
3178 | ||
3179 | /* | |
3180 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
3181 | */ | |
f934c4d9 | 3182 | static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version) |
2da4f01a LR |
3183 | { |
3184 | int i; | |
3185 | ||
3186 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
3187 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
3188 | return ath_mac_bb_names[i].name; | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | return "????"; | |
3193 | } | |
2da4f01a LR |
3194 | |
3195 | /* | |
3196 | * Return the RF name. "????" is returned if the RF is unknown. | |
3197 | * Used for devices with external radios. | |
3198 | */ | |
f934c4d9 | 3199 | static const char *ath9k_hw_rf_name(u16 rf_version) |
2da4f01a LR |
3200 | { |
3201 | int i; | |
3202 | ||
3203 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
3204 | if (ath_rf_names[i].version == rf_version) { | |
3205 | return ath_rf_names[i].name; | |
3206 | } | |
3207 | } | |
3208 | ||
3209 | return "????"; | |
3210 | } | |
f934c4d9 LR |
3211 | |
3212 | void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len) | |
3213 | { | |
3214 | int used; | |
3215 | ||
3216 | /* chipsets >= AR9280 are single-chip */ | |
7a37081e | 3217 | if (AR_SREV_9280_20_OR_LATER(ah)) { |
f934c4d9 LR |
3218 | used = snprintf(hw_name, len, |
3219 | "Atheros AR%s Rev:%x", | |
3220 | ath9k_hw_mac_bb_name(ah->hw_version.macVersion), | |
3221 | ah->hw_version.macRev); | |
3222 | } | |
3223 | else { | |
3224 | used = snprintf(hw_name, len, | |
3225 | "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x", | |
3226 | ath9k_hw_mac_bb_name(ah->hw_version.macVersion), | |
3227 | ah->hw_version.macRev, | |
3228 | ath9k_hw_rf_name((ah->hw_version.analog5GhzRev & | |
3229 | AR_RADIO_SREV_MAJOR)), | |
3230 | ah->hw_version.phyRev); | |
3231 | } | |
3232 | ||
3233 | hw_name[used] = '\0'; | |
3234 | } | |
3235 | EXPORT_SYMBOL(ath9k_hw_name); |