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openwrt/package/mac80211/patches/202-ath5k_txpower_2413.patch

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Implement the power curve interpolation, which is required for
proper tx on 2413 and newer RF designs.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
--- a/drivers/net/wireless/ath5k/phy.c
+++ b/drivers/net/wireless/ath5k/phy.c
@@ -4,6 +4,7 @@
* Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org>
* Copyright (c) 2006-2009 Nick Kossifidis <mickflemm@gmail.com>
* Copyright (c) 2007-2008 Jiri Slaby <jirislaby@gmail.com>
+ * Copyright (c) 2008-2009 Felix Fietkau <nbd@openwrt.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -1438,31 +1439,449 @@ unsigned int ath5k_hw_get_def_antenna(st
*/
/*
- * Initialize the tx power table (not fully implemented)
+ * find the lower and upper index of the values in the table surrounding the target value
*/
-static void ath5k_txpower_table(struct ath5k_hw *ah,
- struct ieee80211_channel *channel, s16 max_power)
+static void
+ath5k_get_table_index(const u16 *tbl, unsigned int tbl_sz, u16 target,
+ unsigned int idx[2])
{
- unsigned int i, min, max, n;
- u16 txpower, *rates;
+ const u16 *ti;
- rates = ah->ah_txpower.txp_rates;
+ if (target < tbl[0]) {
+ idx[0] = idx[1] = 0;
+ return;
+ }
+
+ if (target > tbl[tbl_sz - 1]) {
+ idx[0] = idx[1] = tbl_sz - 1;
+ return;
+ }
+
+ /* look for the surrounding values */
+ for (ti = tbl; ti < &tbl[tbl_sz - 1]; ti++) {
+
+ /* if the value is equal to the target, set lo = hi = index */
+ if (*ti == target) {
+ idx[0] = idx[1] = ti - tbl;
+ return;
+ }
+
+ /* if the target is between the current value and the next one,
+ * set lo = cur, hi = lo + 1 */
+ if (target < ti[1]) {
+ idx[0] = ti - tbl;
+ idx[1] = idx[0] + 1;
+ return;
+ }
+ }
+}
+
+/* find the lower and upper frequency info */
+static void
+ath5k_get_freq_tables(struct ath5k_hw *ah, struct ieee80211_channel *channel,
+ struct ath5k_chan_pcal_info **pcinfo_l,
+ struct ath5k_chan_pcal_info **pcinfo_r,
+ struct ath5k_rate_pcal_info *rates)
+{
+ struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
+ struct ath5k_chan_pcal_info *pcinfo;
+ unsigned int idx_l, idx_r;
+ int mode, max, i;
+ unsigned int target = channel->center_freq;
+ struct ath5k_rate_pcal_info *rpinfo;
+
+ if (!(channel->hw_value & CHANNEL_OFDM)) {
+ pcinfo = ee->ee_pwr_cal_b;
+ rpinfo = ee->ee_rate_tpwr_b;
+ mode = AR5K_EEPROM_MODE_11B;
+ } else if (channel->hw_value & CHANNEL_2GHZ) {
+ pcinfo = ee->ee_pwr_cal_g;
+ rpinfo = ee->ee_rate_tpwr_g;
+ mode = AR5K_EEPROM_MODE_11G;
+ } else {
+ pcinfo = ee->ee_pwr_cal_a;
+ rpinfo = ee->ee_rate_tpwr_a;
+ mode = AR5K_EEPROM_MODE_11A;
+ }
+ max = ee->ee_n_piers[mode] - 1;
+
+ if (target < pcinfo[0].freq) {
+ idx_l = idx_r = 0;
+ goto done;
+ }
+
+ if (target > pcinfo[max].freq) {
+ idx_l = idx_r = max;
+ goto done;
+ }
+
+ /* look for the surrounding values */
+ for (i = 0; i <= max; i++) {
+
+ /* if the value is equal to the target, set lo = hi = index */
+ if (pcinfo[i].freq == target) {
+ idx_l = idx_r = i;
+ goto done;
+ }
+
+ /* if the target is between the current value and the next one,
+ * set lo = cur, hi = lo + 1 */
+ if (target < pcinfo[i].freq) {
+ idx_l = i;
+ idx_r = idx_l + 1;
+ goto done;
+ }
+ }
+
+done:
+ *pcinfo_l = &pcinfo[idx_l];
+ *pcinfo_r = &pcinfo[idx_r];
+
+ if (!rates)
+ return;
+
+ /* rate info minimum values */
+ rates->freq = channel->center_freq;
+ rates->target_power_6to24 =
+ min(rpinfo[idx_l].target_power_6to24,
+ rpinfo[idx_r].target_power_6to24);
+ rates->target_power_36 =
+ min(rpinfo[idx_l].target_power_36,
+ rpinfo[idx_r].target_power_36);
+ rates->target_power_48 =
+ min(rpinfo[idx_l].target_power_48,
+ rpinfo[idx_r].target_power_48);
+ rates->target_power_54 =
+ min(rpinfo[idx_l].target_power_54,
+ rpinfo[idx_r].target_power_54);
+}
+
+
+/* Fill the VPD table for all indices between pmin and pmax */
+static void
+ath5k_fill_vpdtable(s16 pmin, s16 pmax, const s16 *pwr,
+ const u16 *vpd, unsigned int intercepts,
+ u16 vpdtable[AR5K_EEPROM_POWER_TABLE_SIZE])
+{
+ unsigned int idx[2] = { 0, 0 };
+ s16 cur_pwr = 2 * pmin;
+ int i;
+
+ if (intercepts < 2)
+ return;
+
+ for(i = 0; i <= (pmax - pmin); i++) {
+ ath5k_get_table_index(pwr, intercepts, cur_pwr, idx);
+
+ if (!idx[1])
+ idx[1] = 1;
+
+ if (idx[0] == intercepts - 1)
+ idx[0] = intercepts - 2;
+
+ if (pwr[idx[0]] == pwr[idx[1]])
+ vpdtable[i] = vpd[idx[0]];
+ else
+ vpdtable[i] = (((cur_pwr - pwr[idx[0]]) * vpd[idx[1]] +
+ (pwr[idx[1]] - cur_pwr) * vpd[idx[0]]) /
+ (pwr[idx[1]] - pwr[idx[0]]));
+
+ cur_pwr += 2;
+ }
+}
+
+static inline s16
+ath5k_interpolate_signed(u16 ref, u16 ref_l, u16 ref_r, s16 val_l, s16 val_r)
+{
+ if (ref_l == ref_r)
+ return val_l;
+
+ return ((ref - ref_l)*val_r + (ref_r - ref)*val_l) / (ref_r - ref_l);
+}
+
+static inline s16
+ath5k_get_min_power_2413(struct ath5k_chan_pcal_info *pcinfo)
+{
+ struct ath5k_pdgain_info *pd;
+ int i;
+
+ /* backwards - highest pdgain == lowest power */
+ for (i = AR5K_EEPROM_N_PD_GAINS - 1; i >= 0; i--) {
+ pd = &pcinfo->rf2413_info.pdgains[i];
+ if (!pd->n_vpd)
+ continue;
+
+ return pd->pwr_t4[0];
+ }
+ return 0;
+}
+
+static inline s16
+ath5k_get_max_power_2413(struct ath5k_chan_pcal_info *pcinfo)
+{
+ struct ath5k_pdgain_info *pd;
+ int i;
+
+ /* forwards: lowest pdgain == highest power */
+ for (i = 0; i < AR5K_EEPROM_N_PD_GAINS; i++) {
+ pd = &pcinfo->rf2413_info.pdgains[i];
+ if (!pd->n_vpd)
+ continue;
+
+ return pd->pwr_t4[pd->n_vpd];
+ }
+ return 0;
+}
+
+
+
+static int
+ath5k_txpower_table_2413(struct ath5k_hw *ah, struct ieee80211_channel *ch,
+ struct ath5k_chan_pcal_info *pcinfo_l,
+ struct ath5k_chan_pcal_info *pcinfo_r)
+{
+ struct ath5k_pdgain_info *pd_l, *pd_r;
+ u16 gain_boundaries[4];
+ u16 *xpd = ah->ah_txpower.txp_xpd;
+ int n_xpd = 0;
+ s16 pmin_t2[AR5K_EEPROM_N_PD_GAINS];
+ s16 pmax_t2[AR5K_EEPROM_N_PD_GAINS];
+ u16 *pdadc_out = ah->ah_txpower.txp_pcdac;
+ unsigned int gain_overlap;
+ unsigned int vpd_size, target_idx, max_idx;
+ unsigned int n_pdadc = 0;
+ u16 vpd_step;
+ u16 *pcdacL;
+ u16 *pcdacR;
+ int i, j, s;
+ u32 reg;
+ s16 ch_pmin, ch_pmax;
+
+ gain_overlap = ath5k_hw_reg_read(ah, AR5K_PHY_TPC_RG5) &
+ AR5K_PHY_TPC_RG5_PD_GAIN_OVERLAP;
+
+ /* loop backwards over pdgains (highest pdgain == lowest power) */
+ for (i = AR5K_EEPROM_N_PD_GAINS - 1; i >= 0; i--) {
+ pd_l = &pcinfo_l->rf2413_info.pdgains[i];
+ pd_r = &pcinfo_r->rf2413_info.pdgains[i];
+ pcdacL = ah->ah_txpower.txp_rfdata.rf2413.pcdacL[n_xpd];
+ pcdacR = ah->ah_txpower.txp_rfdata.rf2413.pcdacR[n_xpd];
+
+ if (!pd_l->n_vpd)
+ continue;
+
+ xpd[n_xpd] = i;
+
+ pmin_t2[n_xpd] = min(pd_l->pwr_t4[0], pd_r->pwr_t4[0]) / 2;
+ pmax_t2[n_xpd] = min(pd_l->pwr_t4[pd_l->n_vpd - 1],
+ pd_r->pwr_t4[pd_r->n_vpd - 1]) / 2;
+
+ if ((u16) (pmax_t2[n_xpd] - pmin_t2[n_xpd]) > 64)
+ continue;
+
+ /* fill vpd tables for left and right frequency info */
+ ath5k_fill_vpdtable(pmin_t2[n_xpd], pmax_t2[n_xpd],
+ pd_l->pwr_t4, pd_l->vpd, pd_l->n_vpd, pcdacL);
+
+ /* check if interpolation is necessary */
+ if (pcinfo_l == pcinfo_r)
+ continue;
+
+ ath5k_fill_vpdtable(pmin_t2[n_xpd], pmax_t2[n_xpd],
+ pd_r->pwr_t4, pd_r->vpd, pd_r->n_vpd, pcdacR);
+
+ /* interpolate pcdac values,
+ * reuse pcdacL table for interpolation output */
+ for (j = 0; j < (u16) (pmax_t2[n_xpd] - pmin_t2[n_xpd]); j++) {
+ pcdacL[j] = ath5k_interpolate_signed(ch->center_freq,
+ pcinfo_l->freq, pcinfo_r->freq,
+ (s16) pcdacL[j], (s16) pcdacR[j]);
+ }
+ n_xpd++;
+ }
+
+ if (!n_xpd)
+ return 0;
+
+ /* create final table */
+ for (i = 0, n_pdadc = 0; i < n_xpd; i++) {
+ pcdacL = ah->ah_txpower.txp_rfdata.rf2413.pcdacL[i];
+
+ if (i == n_xpd - 1) {
+ /* 2 db boundary stretch */
+ gain_boundaries[i] = pmax_t2[i] + 4;
+ } else {
+ gain_boundaries[i] = (pmax_t2[i] + pmin_t2[i + 1]) / 2;
+ }
+
+ if (gain_boundaries[i] > AR5K_TUNE_MAX_TXPOWER)
+ gain_boundaries[i] = AR5K_TUNE_MAX_TXPOWER;
+
+ /* find starting index */
+ if (i == 0)
+ s = 0;
+ else
+ s = (gain_boundaries[i - 1] - pmin_t2[i]) -
+ gain_overlap;
+
+ if (pcdacL[1] > pcdacL[0])
+ vpd_step = pcdacL[1] - pcdacL[0];
+ else
+ vpd_step = 1;
+
+ /* if s is below 0, we need to extrapolate below this pdgain */
+ while ((s < 0) && (n_pdadc < 128)) {
+ s16 tmp = pcdacL[0] + s * vpd_step;
+ pdadc_out[n_pdadc++] = (u16) ((tmp < 0) ? 0 : tmp);
+ s++;
+ }
+
+ vpd_size = pmax_t2[i] - pmin_t2[i];
+ target_idx = gain_boundaries[i] + gain_overlap - pmin_t2[i];
+ max_idx = (target_idx < vpd_size) ? target_idx : vpd_size;
+
+ while ((s < (s16) max_idx) && (n_pdadc < 128))
+ pdadc_out[n_pdadc++] = pcdacL[s++];
+
+ /* need to extrapolate above this pdgain? */
+ if (target_idx <= max_idx)
+ continue;
- txpower = AR5K_TUNE_DEFAULT_TXPOWER * 2;
- if (max_power > txpower)
- txpower = max_power > AR5K_TUNE_MAX_TXPOWER ?
- AR5K_TUNE_MAX_TXPOWER : max_power;
+ if (pcdacL[vpd_size - 1] > pcdacL[vpd_size - 2])
+ vpd_step = pcdacL[vpd_size - 1] - pcdacL[vpd_size - 2];
+ else
+ vpd_step = 1;
- for (i = 0; i < AR5K_MAX_RATES; i++)
- rates[i] = txpower;
+ while ((s < (s16) target_idx) && (n_pdadc < 128)) {
+ int tmp = pcdacL[vpd_size - 1] +
+ (s - max_idx) * vpd_step;
+ pdadc_out[n_pdadc++] = (tmp > 127) ? 127 : tmp;
+ s++;
+ }
+ }
- /* XXX setup target powers by rate */
+ while (i < AR5K_EEPROM_N_PD_GAINS) {
+ gain_boundaries[i] = gain_boundaries[i - 1];
+ i++;
+ }
+
+ while (n_pdadc < 128) {
+ pdadc_out[n_pdadc] = pdadc_out[n_pdadc - 1];
+ n_pdadc++;
+ }
+
+ /* select the right xpdgain curves */
+ reg = ath5k_hw_reg_read(ah, AR5K_PHY_TPC_RG1);
+ reg &= ~(AR5K_PHY_TPC_RG1_PDGAIN_1 |
+ AR5K_PHY_TPC_RG1_PDGAIN_2 |
+ AR5K_PHY_TPC_RG1_PDGAIN_3 |
+ AR5K_PHY_TPC_RG1_NUM_PD_GAIN);
+ reg |= AR5K_REG_SM(n_xpd, AR5K_PHY_TPC_RG1_NUM_PD_GAIN);
+ switch(n_xpd) {
+ case 3:
+ reg |= AR5K_REG_SM(xpd[2], AR5K_PHY_TPC_RG1_PDGAIN_3);
+ /* fall through */
+ case 2:
+ reg |= AR5K_REG_SM(xpd[1], AR5K_PHY_TPC_RG1_PDGAIN_2);
+ /* fall through */
+ case 1:
+ reg |= AR5K_REG_SM(xpd[0], AR5K_PHY_TPC_RG1_PDGAIN_1);
+ break;
+ }
+ ath5k_hw_reg_write(ah, reg, AR5K_PHY_TPC_RG1);
+ /*
+ * Write TX power values
+ */
+ reg = AR5K_PHY_PDADC_TXPOWER_BASE;
+ for (i = 0; i < (AR5K_EEPROM_POWER_TABLE_SIZE / 2); i++) {
+ ath5k_hw_reg_write(ah,
+ ((pdadc_out[4*i + 0] & 0xff) << 0) |
+ ((pdadc_out[4*i + 1] & 0xff) << 8) |
+ ((pdadc_out[4*i + 2] & 0xff) << 16) |
+ ((pdadc_out[4*i + 3] & 0xff) << 24), reg);
+ reg += 4;
+ }
+
+ ath5k_hw_reg_write(ah,
+ AR5K_REG_SM(gain_overlap,
+ AR5K_PHY_TPC_RG5_PD_GAIN_OVERLAP) |
+ AR5K_REG_SM(gain_boundaries[0],
+ AR5K_PHY_TPC_RG5_PD_GAIN_BOUNDARY_1) |
+ AR5K_REG_SM(gain_boundaries[1],
+ AR5K_PHY_TPC_RG5_PD_GAIN_BOUNDARY_2) |
+ AR5K_REG_SM(gain_boundaries[2],
+ AR5K_PHY_TPC_RG5_PD_GAIN_BOUNDARY_3) |
+ AR5K_REG_SM(gain_boundaries[3],
+ AR5K_PHY_TPC_RG5_PD_GAIN_BOUNDARY_4),
+ AR5K_PHY_TPC_RG5);
+
+ ah->ah_txpower.txp_offset = pmin_t2[0];
+
+ /* look up power boundaries for this channel */
+ ch_pmin = ath5k_get_min_power_2413(pcinfo_l);
+ ch_pmax = ath5k_get_max_power_2413(pcinfo_l);
+
+ if (pcinfo_l != pcinfo_r) {
+ s16 pwr_r;
+
+ pwr_r = ath5k_get_min_power_2413(pcinfo_r);
+ ch_pmin = ath5k_interpolate_signed(ch->center_freq,
+ pcinfo_l->freq, pcinfo_r->freq,
+ ch_pmin, pwr_r);
+
+ pwr_r = ath5k_get_max_power_2413(pcinfo_r);
+ ch_pmax = ath5k_interpolate_signed(ch->center_freq,
+ pcinfo_l->freq, pcinfo_r->freq,
+ ch_pmax, pwr_r);
+ }
+ ah->ah_txpower.txp_min = ch_pmin;
+ ah->ah_txpower.txp_max = ch_pmax;
+
+ return 0;
+}
+
+static void
+ath5k_setup_rate_table(struct ath5k_hw *ah, u16 max_pwr,
+ struct ath5k_rate_pcal_info *rate_info)
+{
+ unsigned int i;
+ u16 *rates;
+
+ max_pwr *= 2;
+ max_pwr = min(max_pwr, (u16) ah->ah_txpower.txp_max);
+
+ /* apply rate limits */
+ rates = ah->ah_txpower.txp_rates;
+ for (i = 0; i < 5; i++) {
+ rates[i] = min(max_pwr, rate_info->target_power_6to24);
+ }
+ rates[5] = min(rates[0], rate_info->target_power_36);
+ rates[6] = min(rates[0], rate_info->target_power_48);
+ rates[7] = min(rates[0], rate_info->target_power_54);
+ rates[8] = min(rates[0], rate_info->target_power_6to24);
+ rates[9] = min(rates[0], rate_info->target_power_36);
+ rates[10] = min(rates[0], rate_info->target_power_36);
+ rates[11] = min(rates[0], rate_info->target_power_48);
+ rates[12] = min(rates[0], rate_info->target_power_48);
+ rates[13] = min(rates[0], rate_info->target_power_54);
+ rates[14] = min(rates[0], rate_info->target_power_54);
+
+ ah->ah_txpower.txp_tpc = max_pwr;
ah->ah_txpower.txp_min = rates[7];
- ah->ah_txpower.txp_max = rates[0];
- ah->ah_txpower.txp_ofdm = rates[0];
+ ah->ah_txpower.txp_max = min(ah->ah_txpower.txp_max,
+ (s16) rate_info->target_power_36);
+ ah->ah_txpower.txp_ofdm = ah->ah_txpower.txp_max;
+}
+
+static int
+ath5k_txpower_table(struct ath5k_hw *ah, struct ieee80211_channel *ch,
+ struct ath5k_chan_pcal_info *pcinfo_l,
+ struct ath5k_chan_pcal_info *pcinfo_r,
+ u16 max_pwr)
+{
+ unsigned int i, min, max, n;
- /* Calculate the power table */
n = ARRAY_SIZE(ah->ah_txpower.txp_pcdac);
min = AR5K_EEPROM_PCDAC_START;
max = AR5K_EEPROM_PCDAC_STOP;
@@ -1473,51 +1892,64 @@ static void ath5k_txpower_table(struct a
#else
min;
#endif
+
+ /*
+ * Write TX power values
+ */
+ for (i = 0; i < (AR5K_EEPROM_POWER_TABLE_SIZE / 2); i++) {
+ ath5k_hw_reg_write(ah,
+ ((((ah->ah_txpower.txp_pcdac[(i << 1) + 1] << 8) |
+ 0xff) & 0xffff) << 16) |
+ (((ah->ah_txpower.txp_pcdac[(i << 1) ] << 8) |
+ 0xff) & 0xffff),
+ AR5K_PHY_PCDAC_TXPOWER(i));
+ }
+ return 0;
}
+
/*
* Set transmition power
*/
-int /*O.K. - txpower_table is unimplemented so this doesn't work*/
+int
ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
unsigned int txpower)
{
+ struct ath5k_chan_pcal_info *pcinfo_l, *pcinfo_r;
+ struct ath5k_rate_pcal_info rate_info;
bool tpc = ah->ah_txpower.txp_tpc;
- unsigned int i;
ATH5K_TRACE(ah->ah_sc);
if (txpower > AR5K_TUNE_MAX_TXPOWER) {
ATH5K_ERR(ah->ah_sc, "invalid tx power: %u\n", txpower);
return -EINVAL;
}
-
- /*
- * RF2413 for some reason can't
- * transmit anything if we call
- * this funtion, so we skip it
- * until we fix txpower.
- *
- * XXX: Assume same for RF2425
- * to be safe.
- */
- if ((ah->ah_radio == AR5K_RF2413) || (ah->ah_radio == AR5K_RF2425))
- return 0;
+ if (txpower == 0)
+ txpower = AR5K_TUNE_MAX_TXPOWER;
/* Reset TX power values */
memset(&ah->ah_txpower, 0, sizeof(ah->ah_txpower));
ah->ah_txpower.txp_tpc = tpc;
+ ah->ah_txpower.txp_min = 0;
+ ah->ah_txpower.txp_max = AR5K_TUNE_MAX_TXPOWER;
- /* Initialize TX power table */
- ath5k_txpower_table(ah, channel, txpower);
+ /* find matching frequency info */
+ ath5k_get_freq_tables(ah, channel, &pcinfo_l, &pcinfo_r, &rate_info);
+ ath5k_setup_rate_table(ah, txpower, &rate_info);
- /*
- * Write TX power values
- */
- for (i = 0; i < (AR5K_EEPROM_POWER_TABLE_SIZE / 2); i++) {
- ath5k_hw_reg_write(ah,
- ((((ah->ah_txpower.txp_pcdac[(i << 1) + 1] << 8) | 0xff) & 0xffff) << 16) |
- (((ah->ah_txpower.txp_pcdac[(i << 1) ] << 8) | 0xff) & 0xffff),
- AR5K_PHY_PCDAC_TXPOWER(i));
+ /* Initialize TX power table */
+ switch(ah->ah_radio) {
+ case AR5K_RF2413:
+ case AR5K_RF5413:
+ ath5k_txpower_table_2413(ah, channel, pcinfo_l, pcinfo_r);
+ break;
+ case AR5K_RF2425:
+ /* unimplemented */
+ return 0;
+ default:
+ /* Default power table */
+ ath5k_txpower_table(ah, channel, pcinfo_l, pcinfo_r, txpower);
+ break;
}
ath5k_hw_reg_write(ah, AR5K_TXPOWER_OFDM(3, 24) |
@@ -1536,12 +1968,19 @@ ath5k_hw_txpower(struct ath5k_hw *ah, st
AR5K_TXPOWER_CCK(13, 16) | AR5K_TXPOWER_CCK(12, 8) |
AR5K_TXPOWER_CCK(11, 0), AR5K_PHY_TXPOWER_RATE4);
- if (ah->ah_txpower.txp_tpc)
+ if (ah->ah_txpower.txp_tpc) {
ath5k_hw_reg_write(ah, AR5K_PHY_TXPOWER_RATE_MAX_TPC_ENABLE |
AR5K_TUNE_MAX_TXPOWER, AR5K_PHY_TXPOWER_RATE_MAX);
- else
+
+ ath5k_hw_reg_write(ah,
+ AR5K_REG_MS(AR5K_TUNE_MAX_TXPOWER, AR5K_TPC_ACK) |
+ AR5K_REG_MS(AR5K_TUNE_MAX_TXPOWER, AR5K_TPC_CTS) |
+ AR5K_REG_MS(AR5K_TUNE_MAX_TXPOWER, AR5K_TPC_CHIRP),
+ AR5K_TPC);
+ } else {
ath5k_hw_reg_write(ah, AR5K_PHY_TXPOWER_RATE_MAX |
AR5K_TUNE_MAX_TXPOWER, AR5K_PHY_TXPOWER_RATE_MAX);
+ }
return 0;
}
--- a/drivers/net/wireless/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath5k/ath5k.h
@@ -204,7 +204,7 @@
#define AR5K_TUNE_CWMAX_11B 1023
#define AR5K_TUNE_CWMAX_XR 7
#define AR5K_TUNE_NOISE_FLOOR -72
-#define AR5K_TUNE_MAX_TXPOWER 60
+#define AR5K_TUNE_MAX_TXPOWER 63
#define AR5K_TUNE_DEFAULT_TXPOWER 30
#define AR5K_TUNE_TPC_TXPOWER true
#define AR5K_TUNE_ANT_DIVERSITY true
@@ -1085,11 +1085,23 @@ struct ath5k_hw {
struct ath5k_gain ah_gain;
u8 ah_offset[AR5K_MAX_RF_BANKS];
+
struct {
- u16 txp_pcdac[AR5K_EEPROM_POWER_TABLE_SIZE];
+ union {
+ struct {
+ /* Temporary PCDAC tables for interpolation */
+ u16 pcdacL[AR5K_EEPROM_N_PD_GAINS]
+ [AR5K_EEPROM_POWER_TABLE_SIZE];
+ u16 pcdacR[AR5K_EEPROM_N_PD_GAINS]
+ [AR5K_EEPROM_POWER_TABLE_SIZE];
+ } rf2413;
+ } txp_rfdata;
+ u16 txp_xpd[AR5K_EEPROM_N_XPD_PER_CHANNEL];
+ u16 txp_pcdac[AR5K_EEPROM_POWER_TABLE_SIZE * 2];
u16 txp_rates[AR5K_MAX_RATES];
s16 txp_min;
s16 txp_max;
+ s16 txp_offset;
bool txp_tpc;
s16 txp_ofdm;
} ah_txpower;
--- a/drivers/net/wireless/ath5k/reg.h
+++ b/drivers/net/wireless/ath5k/reg.h
@@ -1552,6 +1552,15 @@
/*===5212 Specific PCU registers===*/
+#define AR5K_TPC 0x80e8
+#define AR5K_TPC_ACK 0x0000003f /* ack frames */
+#define AR5K_TPC_ACK_S 0
+#define AR5K_TPC_CTS 0x00003f00 /* cts frames */
+#define AR5K_TPC_CTS_S 8
+#define AR5K_TPC_CHIRP 0x003f0000 /* chirp frames */
+#define AR5K_TPC_CHIRP_S 16
+#define AR5K_TPC_DOPPLER 0x0f000000 /* doppler chirp span */
+#define AR5K_TPC_DOPPLER_S 24
/*
* XR (eXtended Range) mode register
@@ -2550,6 +2559,12 @@
#define AR5K_PHY_TPC_RG1 0xa258
#define AR5K_PHY_TPC_RG1_NUM_PD_GAIN 0x0000c000
#define AR5K_PHY_TPC_RG1_NUM_PD_GAIN_S 14
+#define AR5K_PHY_TPC_RG1_PDGAIN_1 0x00030000
+#define AR5K_PHY_TPC_RG1_PDGAIN_1_S 16
+#define AR5K_PHY_TPC_RG1_PDGAIN_2 0x000c0000
+#define AR5K_PHY_TPC_RG1_PDGAIN_2_S 18
+#define AR5K_PHY_TPC_RG1_PDGAIN_3 0x00300000
+#define AR5K_PHY_TPC_RG1_PDGAIN_3_S 20
#define AR5K_PHY_TPC_RG5 0xa26C
#define AR5K_PHY_TPC_RG5_PD_GAIN_OVERLAP 0x0000000F
--- a/drivers/net/wireless/ath5k/desc.c
+++ b/drivers/net/wireless/ath5k/desc.c
@@ -194,6 +194,10 @@ static int ath5k_hw_setup_4word_tx_desc(
return -EINVAL;
}
+ tx_power += ah->ah_txpower.txp_offset;
+ if (tx_power > AR5K_TUNE_MAX_TXPOWER)
+ tx_power = AR5K_TUNE_MAX_TXPOWER;
+
/* Clear descriptor */
memset(&desc->ud.ds_tx5212, 0, sizeof(struct ath5k_hw_5212_tx_desc));
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