2 * Copyright (c) 2008-2009 Atheros Communications Inc.
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.
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.
20 ath9k_hw_write_regs(struct ath_hw *ah, u32 modesIndex, u32 freqIndex,
23 REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites);
27 ath9k_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
29 struct ath_common *common = ath9k_hw_common(ah);
35 struct chan_centers centers;
37 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
38 freq = centers.synth_center;
43 if (((freq - 2192) % 5) == 0) {
44 channelSel = ((freq - 672) * 2 - 3040) / 10;
46 } else if (((freq - 2224) % 5) == 0) {
47 channelSel = ((freq - 704) * 2 - 3040) / 10;
50 ath_print(common, ATH_DBG_FATAL,
51 "Invalid channel %u MHz\n", freq);
55 channelSel = (channelSel << 2) & 0xff;
56 channelSel = ath9k_hw_reverse_bits(channelSel, 8);
58 txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
61 REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
62 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
64 REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
65 txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
68 } else if ((freq % 20) == 0 && freq >= 5120) {
70 ath9k_hw_reverse_bits(((freq - 4800) / 20 << 2), 8);
71 aModeRefSel = ath9k_hw_reverse_bits(1, 2);
72 } else if ((freq % 10) == 0) {
74 ath9k_hw_reverse_bits(((freq - 4800) / 10 << 1), 8);
75 if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
76 aModeRefSel = ath9k_hw_reverse_bits(2, 2);
78 aModeRefSel = ath9k_hw_reverse_bits(1, 2);
79 } else if ((freq % 5) == 0) {
80 channelSel = ath9k_hw_reverse_bits((freq - 4800) / 5, 8);
81 aModeRefSel = ath9k_hw_reverse_bits(1, 2);
83 ath_print(common, ATH_DBG_FATAL,
84 "Invalid channel %u MHz\n", freq);
89 (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
92 REG_WRITE(ah, AR_PHY(0x37), reg32);
95 ah->curchan_rad_index = -1;
100 void ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
101 struct ath9k_channel *chan)
103 u16 bMode, fracMode, aModeRefSel = 0;
104 u32 freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
105 struct chan_centers centers;
108 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
109 freq = centers.synth_center;
111 reg32 = REG_READ(ah, AR_PHY_SYNTH_CONTROL);
121 channelSel = (freq * 0x10000) / 15;
123 if (AR_SREV_9287_11_OR_LATER(ah)) {
125 REG_WRITE_ARRAY(&ah->iniCckfirJapan2484,
128 REG_WRITE_ARRAY(&ah->iniCckfirNormal,
132 txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
134 /* Enable channel spreading for channel 14 */
135 REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
136 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
138 REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
139 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
146 switch(ah->eep_ops->get_eeprom(ah, EEP_FRAC_N_5G)) {
148 if ((freq % 20) == 0) {
150 } else if ((freq % 10) == 0) {
160 channelSel = (freq * 0x8000) / 15;
162 REG_RMW_FIELD(ah, AR_AN_SYNTH9,
163 AR_AN_SYNTH9_REFDIVA, refDivA);
168 ndiv = (freq * (refDivA >> aModeRefSel)) / 60;
169 channelSel = ndiv & 0x1ff;
170 channelFrac = (ndiv & 0xfffffe00) * 2;
171 channelSel = (channelSel << 17) | channelFrac;
177 (fracMode << 28) | (aModeRefSel << 26) | (channelSel);
179 REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
182 ah->curchan_rad_index = -1;
186 ath9k_phy_modify_rx_buffer(u32 *rfBuf, u32 reg32,
187 u32 numBits, u32 firstBit,
190 u32 tmp32, mask, arrayEntry, lastBit;
191 int32_t bitPosition, bitsLeft;
193 tmp32 = ath9k_hw_reverse_bits(reg32, numBits);
194 arrayEntry = (firstBit - 1) / 8;
195 bitPosition = (firstBit - 1) % 8;
197 while (bitsLeft > 0) {
198 lastBit = (bitPosition + bitsLeft > 8) ?
199 8 : bitPosition + bitsLeft;
200 mask = (((1 << lastBit) - 1) ^ ((1 << bitPosition) - 1)) <<
202 rfBuf[arrayEntry] &= ~mask;
203 rfBuf[arrayEntry] |= ((tmp32 << bitPosition) <<
204 (column * 8)) & mask;
205 bitsLeft -= 8 - bitPosition;
206 tmp32 = tmp32 >> (8 - bitPosition);
213 ath9k_hw_set_rf_regs(struct ath_hw *ah, struct ath9k_channel *chan,
217 u32 ob5GHz = 0, db5GHz = 0;
218 u32 ob2GHz = 0, db2GHz = 0;
221 if (AR_SREV_9280_10_OR_LATER(ah))
224 eepMinorRev = ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV);
226 RF_BANK_SETUP(ah->analogBank0Data, &ah->iniBank0, 1);
228 RF_BANK_SETUP(ah->analogBank1Data, &ah->iniBank1, 1);
230 RF_BANK_SETUP(ah->analogBank2Data, &ah->iniBank2, 1);
232 RF_BANK_SETUP(ah->analogBank3Data, &ah->iniBank3,
236 for (i = 0; i < ah->iniBank6TPC.ia_rows; i++) {
237 ah->analogBank6Data[i] =
238 INI_RA(&ah->iniBank6TPC, i, modesIndex);
242 if (eepMinorRev >= 2) {
243 if (IS_CHAN_2GHZ(chan)) {
244 ob2GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_2);
245 db2GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_2);
246 ath9k_phy_modify_rx_buffer(ah->analogBank6Data,
248 ath9k_phy_modify_rx_buffer(ah->analogBank6Data,
251 ob5GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_5);
252 db5GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_5);
253 ath9k_phy_modify_rx_buffer(ah->analogBank6Data,
255 ath9k_phy_modify_rx_buffer(ah->analogBank6Data,
260 RF_BANK_SETUP(ah->analogBank7Data, &ah->iniBank7, 1);
262 REG_WRITE_RF_ARRAY(&ah->iniBank0, ah->analogBank0Data,
264 REG_WRITE_RF_ARRAY(&ah->iniBank1, ah->analogBank1Data,
266 REG_WRITE_RF_ARRAY(&ah->iniBank2, ah->analogBank2Data,
268 REG_WRITE_RF_ARRAY(&ah->iniBank3, ah->analogBank3Data,
270 REG_WRITE_RF_ARRAY(&ah->iniBank6TPC, ah->analogBank6Data,
272 REG_WRITE_RF_ARRAY(&ah->iniBank7, ah->analogBank7Data,
279 ath9k_hw_rf_free(struct ath_hw *ah)
281 #define ATH_FREE_BANK(bank) do { \
286 ATH_FREE_BANK(ah->analogBank0Data);
287 ATH_FREE_BANK(ah->analogBank1Data);
288 ATH_FREE_BANK(ah->analogBank2Data);
289 ATH_FREE_BANK(ah->analogBank3Data);
290 ATH_FREE_BANK(ah->analogBank6Data);
291 ATH_FREE_BANK(ah->analogBank6TPCData);
292 ATH_FREE_BANK(ah->analogBank7Data);
293 ATH_FREE_BANK(ah->addac5416_21);
294 ATH_FREE_BANK(ah->bank6Temp);
298 bool ath9k_hw_init_rf(struct ath_hw *ah, int *status)
300 struct ath_common *common = ath9k_hw_common(ah);
302 if (!AR_SREV_9280_10_OR_LATER(ah)) {
303 ah->analogBank0Data =
304 kzalloc((sizeof(u32) *
305 ah->iniBank0.ia_rows), GFP_KERNEL);
306 ah->analogBank1Data =
307 kzalloc((sizeof(u32) *
308 ah->iniBank1.ia_rows), GFP_KERNEL);
309 ah->analogBank2Data =
310 kzalloc((sizeof(u32) *
311 ah->iniBank2.ia_rows), GFP_KERNEL);
312 ah->analogBank3Data =
313 kzalloc((sizeof(u32) *
314 ah->iniBank3.ia_rows), GFP_KERNEL);
315 ah->analogBank6Data =
316 kzalloc((sizeof(u32) *
317 ah->iniBank6.ia_rows), GFP_KERNEL);
318 ah->analogBank6TPCData =
319 kzalloc((sizeof(u32) *
320 ah->iniBank6TPC.ia_rows), GFP_KERNEL);
321 ah->analogBank7Data =
322 kzalloc((sizeof(u32) *
323 ah->iniBank7.ia_rows), GFP_KERNEL);
325 if (ah->analogBank0Data == NULL
326 || ah->analogBank1Data == NULL
327 || ah->analogBank2Data == NULL
328 || ah->analogBank3Data == NULL
329 || ah->analogBank6Data == NULL
330 || ah->analogBank6TPCData == NULL
331 || ah->analogBank7Data == NULL) {
332 ath_print(common, ATH_DBG_FATAL,
333 "Cannot allocate RF banks\n");
339 kzalloc((sizeof(u32) *
340 ah->iniAddac.ia_rows *
341 ah->iniAddac.ia_columns), GFP_KERNEL);
342 if (ah->addac5416_21 == NULL) {
343 ath_print(common, ATH_DBG_FATAL,
344 "Cannot allocate addac5416_21\n");
350 kzalloc((sizeof(u32) *
351 ah->iniBank6.ia_rows), GFP_KERNEL);
352 if (ah->bank6Temp == NULL) {
353 ath_print(common, ATH_DBG_FATAL,
354 "Cannot allocate bank6Temp\n");
364 ath9k_hw_decrease_chain_power(struct ath_hw *ah, struct ath9k_channel *chan)
366 int i, regWrites = 0;
368 u32 *bank6Temp = ah->bank6Temp;
370 switch (ah->config.diversity_control) {
371 case ATH9K_ANT_FIXED_A:
373 (ah->config.antenna_switch_swap & ANTSWAP_AB) ?
374 REDUCE_CHAIN_0 : REDUCE_CHAIN_1;
376 case ATH9K_ANT_FIXED_B:
378 (ah->config.antenna_switch_swap & ANTSWAP_AB) ?
379 REDUCE_CHAIN_1 : REDUCE_CHAIN_0;
381 case ATH9K_ANT_VARIABLE:
389 for (i = 0; i < ah->iniBank6.ia_rows; i++)
390 bank6Temp[i] = ah->analogBank6Data[i];
392 REG_WRITE(ah, AR_PHY_BASE + 0xD8, bank6SelMask);
394 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 189, 0);
395 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 190, 0);
396 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 191, 0);
397 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 192, 0);
398 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 193, 0);
399 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 222, 0);
400 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 245, 0);
401 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 246, 0);
402 ath9k_phy_modify_rx_buffer(bank6Temp, 1, 1, 247, 0);
404 REG_WRITE_RF_ARRAY(&ah->iniBank6, bank6Temp, regWrites);
406 REG_WRITE(ah, AR_PHY_BASE + 0xD8, 0x00000053);
408 REG_WRITE(ah, PHY_SWITCH_CHAIN_0,
409 (REG_READ(ah, PHY_SWITCH_CHAIN_0) & ~0x38)
410 | ((REG_READ(ah, PHY_SWITCH_CHAIN_0) >> 3) & 0x38));