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.
19 static inline u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz)
21 if (fbin == AR5416_BCHAN_UNUSED)
24 return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin));
27 void ath9k_hw_analog_shift_rmw(struct ath_hw *ah, u32 reg, u32 mask,
32 regVal = REG_READ(ah, reg) & ~mask;
33 regVal |= (val << shift) & mask;
35 REG_WRITE(ah, reg, regVal);
37 if (ah->config.analog_shiftreg)
43 int16_t ath9k_hw_interpolate(u16 target, u16 srcLeft, u16 srcRight,
44 int16_t targetLeft, int16_t targetRight)
48 if (srcRight == srcLeft) {
51 rv = (int16_t) (((target - srcLeft) * targetRight +
52 (srcRight - target) * targetLeft) /
53 (srcRight - srcLeft));
58 bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, u16 listSize,
59 u16 *indexL, u16 *indexR)
63 if (target <= pList[0]) {
64 *indexL = *indexR = 0;
67 if (target >= pList[listSize - 1]) {
68 *indexL = *indexR = (u16) (listSize - 1);
72 for (i = 0; i < listSize - 1; i++) {
73 if (pList[i] == target) {
74 *indexL = *indexR = i;
77 if (target < pList[i + 1]) {
79 *indexR = (u16) (i + 1);
86 bool ath9k_hw_nvram_read(struct ath_hw *ah, u32 off, u16 *data)
88 struct ath_softc *sc = ah->ah_sc;
90 return sc->bus_ops->eeprom_read(ah, off, data);
93 void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList,
94 u8 *pVpdList, u16 numIntercepts,
99 u16 idxL = 0, idxR = 0;
101 for (i = 0; i <= (pwrMax - pwrMin) / 2; i++) {
102 ath9k_hw_get_lower_upper_index(currPwr, pPwrList,
103 numIntercepts, &(idxL),
107 if (idxL == numIntercepts - 1)
108 idxL = (u16) (numIntercepts - 2);
109 if (pPwrList[idxL] == pPwrList[idxR])
112 k = (u16)(((currPwr - pPwrList[idxL]) * pVpdList[idxR] +
113 (pPwrList[idxR] - currPwr) * pVpdList[idxL]) /
114 (pPwrList[idxR] - pPwrList[idxL]));
115 pRetVpdList[i] = (u8) k;
120 void ath9k_hw_get_legacy_target_powers(struct ath_hw *ah,
121 struct ath9k_channel *chan,
122 struct cal_target_power_leg *powInfo,
124 struct cal_target_power_leg *pNewPower,
125 u16 numRates, bool isExtTarget)
127 struct chan_centers centers;
130 int matchIndex = -1, lowIndex = -1;
133 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
134 freq = (isExtTarget) ? centers.ext_center : centers.ctl_center;
136 if (freq <= ath9k_hw_fbin2freq(powInfo[0].bChannel,
137 IS_CHAN_2GHZ(chan))) {
140 for (i = 0; (i < numChannels) &&
141 (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) {
142 if (freq == ath9k_hw_fbin2freq(powInfo[i].bChannel,
143 IS_CHAN_2GHZ(chan))) {
146 } else if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
147 IS_CHAN_2GHZ(chan)) && i > 0 &&
148 freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
149 IS_CHAN_2GHZ(chan))) {
154 if ((matchIndex == -1) && (lowIndex == -1))
158 if (matchIndex != -1) {
159 *pNewPower = powInfo[matchIndex];
161 clo = ath9k_hw_fbin2freq(powInfo[lowIndex].bChannel,
163 chi = ath9k_hw_fbin2freq(powInfo[lowIndex + 1].bChannel,
166 for (i = 0; i < numRates; i++) {
167 pNewPower->tPow2x[i] =
168 (u8)ath9k_hw_interpolate(freq, clo, chi,
169 powInfo[lowIndex].tPow2x[i],
170 powInfo[lowIndex + 1].tPow2x[i]);
175 void ath9k_hw_get_target_powers(struct ath_hw *ah,
176 struct ath9k_channel *chan,
177 struct cal_target_power_ht *powInfo,
179 struct cal_target_power_ht *pNewPower,
180 u16 numRates, bool isHt40Target)
182 struct chan_centers centers;
185 int matchIndex = -1, lowIndex = -1;
188 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
189 freq = isHt40Target ? centers.synth_center : centers.ctl_center;
191 if (freq <= ath9k_hw_fbin2freq(powInfo[0].bChannel, IS_CHAN_2GHZ(chan))) {
194 for (i = 0; (i < numChannels) &&
195 (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) {
196 if (freq == ath9k_hw_fbin2freq(powInfo[i].bChannel,
197 IS_CHAN_2GHZ(chan))) {
201 if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel,
202 IS_CHAN_2GHZ(chan)) && i > 0 &&
203 freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel,
204 IS_CHAN_2GHZ(chan))) {
209 if ((matchIndex == -1) && (lowIndex == -1))
213 if (matchIndex != -1) {
214 *pNewPower = powInfo[matchIndex];
216 clo = ath9k_hw_fbin2freq(powInfo[lowIndex].bChannel,
218 chi = ath9k_hw_fbin2freq(powInfo[lowIndex + 1].bChannel,
221 for (i = 0; i < numRates; i++) {
222 pNewPower->tPow2x[i] = (u8)ath9k_hw_interpolate(freq,
224 powInfo[lowIndex].tPow2x[i],
225 powInfo[lowIndex + 1].tPow2x[i]);
230 u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower,
231 bool is2GHz, int num_band_edges)
233 u16 twiceMaxEdgePower = AR5416_MAX_RATE_POWER;
236 for (i = 0; (i < num_band_edges) &&
237 (pRdEdgesPower[i].bChannel != AR5416_BCHAN_UNUSED); i++) {
238 if (freq == ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel, is2GHz)) {
239 twiceMaxEdgePower = pRdEdgesPower[i].tPower;
241 } else if ((i > 0) &&
242 (freq < ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel,
244 if (ath9k_hw_fbin2freq(pRdEdgesPower[i - 1].bChannel,
246 pRdEdgesPower[i - 1].flag) {
248 pRdEdgesPower[i - 1].tPower;
254 return twiceMaxEdgePower;
257 int ath9k_hw_eeprom_init(struct ath_hw *ah)
261 if (AR_SREV_9287(ah)) {
262 ah->eep_map = EEP_MAP_AR9287;
263 ah->eep_ops = &eep_AR9287_ops;
264 } else if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) {
265 ah->eep_map = EEP_MAP_4KBITS;
266 ah->eep_ops = &eep_4k_ops;
268 ah->eep_map = EEP_MAP_DEFAULT;
269 ah->eep_ops = &eep_def_ops;
272 if (!ah->eep_ops->fill_eeprom(ah))
275 status = ah->eep_ops->check_eeprom(ah);