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-rw-r--r--package/mac80211/patches/202-ath5k_txpower_2413.patch672
1 files changed, 672 insertions, 0 deletions
diff --git a/package/mac80211/patches/202-ath5k_txpower_2413.patch b/package/mac80211/patches/202-ath5k_txpower_2413.patch
new file mode 100644
index 0000000..ddecd9e
--- /dev/null
+++ b/package/mac80211/patches/202-ath5k_txpower_2413.patch
@@ -0,0 +1,672 @@
+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));
+
generated by cgit v1.1 at 2024-12-12 07:25:00 +0000