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wifi: ath12k: fill parameters for vdev set TPC power WMI command 

Prepare the parameters which are needed for WMI command
WMI_VDEV_SET_TPC_POWER_CMDID. This helper will be used in a following
patch.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250418-ath12k-6g-lp-vlp-v1-13-c869c86cad60@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
pull/1112/head
Baochen Qiang 2025-04-18 10:55:46 +08:00 committed by Jeff Johnson
parent b0501a0ee7
commit aeda163bb0
2 changed files with 322 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

319
drivers/net/wireless/ath/ath12k/mac.c
View File

@ -9752,6 +9752,325 @@ static int ath12k_start_vdev_delay(struct ath12k *ar,
return 0;
}
static u8 ath12k_mac_get_num_pwr_levels(struct cfg80211_chan_def *chan_def)
{
if (chan_def->chan->flags & IEEE80211_CHAN_PSD) {
switch (chan_def->width) {
case NL80211_CHAN_WIDTH_20:
return 1;
case NL80211_CHAN_WIDTH_40:
return 2;
case NL80211_CHAN_WIDTH_80:
return 4;
case NL80211_CHAN_WIDTH_160:
return 8;
case NL80211_CHAN_WIDTH_320:
return 16;
default:
return 1;
}
} else {
switch (chan_def->width) {
case NL80211_CHAN_WIDTH_20:
return 1;
case NL80211_CHAN_WIDTH_40:
return 2;
case NL80211_CHAN_WIDTH_80:
return 3;
case NL80211_CHAN_WIDTH_160:
return 4;
case NL80211_CHAN_WIDTH_320:
return 5;
default:
return 1;
}
}
}
static u16 ath12k_mac_get_6ghz_start_frequency(struct cfg80211_chan_def *chan_def)
{
u16 diff_seq;
/* It is to get the lowest channel number's center frequency of the chan.
* For example,
* bandwidth=40 MHz, center frequency is 5965, lowest channel is 1
* with center frequency 5955, its diff is 5965 - 5955 = 10.
* bandwidth=80 MHz, center frequency is 5985, lowest channel is 1
* with center frequency 5955, its diff is 5985 - 5955 = 30.
* bandwidth=160 MHz, center frequency is 6025, lowest channel is 1
* with center frequency 5955, its diff is 6025 - 5955 = 70.
* bandwidth=320 MHz, center frequency is 6105, lowest channel is 1
* with center frequency 5955, its diff is 6105 - 5955 = 70.
*/
switch (chan_def->width) {
case NL80211_CHAN_WIDTH_320:
diff_seq = 150;
break;
case NL80211_CHAN_WIDTH_160:
diff_seq = 70;
break;
case NL80211_CHAN_WIDTH_80:
diff_seq = 30;
break;
case NL80211_CHAN_WIDTH_40:
diff_seq = 10;
break;
default:
diff_seq = 0;
}
return chan_def->center_freq1 - diff_seq;
}
static u16 ath12k_mac_get_seg_freq(struct cfg80211_chan_def *chan_def,
u16 start_seq, u8 seq)
{
u16 seg_seq;
/* It is to get the center frequency of the specific bandwidth.
* start_seq means the lowest channel number's center frequency.
* seq 0/1/2/3 means 20 MHz/40 MHz/80 MHz/160 MHz.
* For example,
* lowest channel is 1, its center frequency 5955,
* center frequency is 5955 when bandwidth=20 MHz, its diff is 5955 - 5955 = 0.
* lowest channel is 1, its center frequency 5955,
* center frequency is 5965 when bandwidth=40 MHz, its diff is 5965 - 5955 = 10.
* lowest channel is 1, its center frequency 5955,
* center frequency is 5985 when bandwidth=80 MHz, its diff is 5985 - 5955 = 30.
* lowest channel is 1, its center frequency 5955,
* center frequency is 6025 when bandwidth=160 MHz, its diff is 6025 - 5955 = 70.
*/
seg_seq = 10 * (BIT(seq) - 1);
return seg_seq + start_seq;
}
static void ath12k_mac_get_psd_channel(struct ath12k *ar,
u16 step_freq,
u16 *start_freq,
u16 *center_freq,
u8 i,
struct ieee80211_channel **temp_chan,
s8 *tx_power)
{
/* It is to get the center frequency for each 20 MHz.
* For example, if the chan is 160 MHz and center frequency is 6025,
* then it include 8 channels, they are 1/5/9/13/17/21/25/29,
* channel number 1's center frequency is 5955, it is parameter start_freq.
* parameter i is the step of the 8 channels. i is 0~7 for the 8 channels.
* the channel 1/5/9/13/17/21/25/29 maps i=0/1/2/3/4/5/6/7,
* and maps its center frequency is 5955/5975/5995/6015/6035/6055/6075/6095,
* the gap is 20 for each channel, parameter step_freq means the gap.
* after get the center frequency of each channel, it is easy to find the
* struct ieee80211_channel of it and get the max_reg_power.
*/
*center_freq = *start_freq + i * step_freq;
*temp_chan = ieee80211_get_channel(ar->ah->hw->wiphy, *center_freq);
*tx_power = (*temp_chan)->max_reg_power;
}
static void ath12k_mac_get_eirp_power(struct ath12k *ar,
u16 *start_freq,
u16 *center_freq,
u8 i,
struct ieee80211_channel **temp_chan,
struct cfg80211_chan_def *def,
s8 *tx_power)
{
/* It is to get the center frequency for 20 MHz/40 MHz/80 MHz/
* 160 MHz bandwidth, and then plus 10 to the center frequency,
* it is the center frequency of a channel number.
* For example, when configured channel number is 1.
* center frequency is 5965 when bandwidth=40 MHz, after plus 10, it is 5975,
* then it is channel number 5.
* center frequency is 5985 when bandwidth=80 MHz, after plus 10, it is 5995,
* then it is channel number 9.
* center frequency is 6025 when bandwidth=160 MHz, after plus 10, it is 6035,
* then it is channel number 17.
* after get the center frequency of each channel, it is easy to find the
* struct ieee80211_channel of it and get the max_reg_power.
*/
*center_freq = ath12k_mac_get_seg_freq(def, *start_freq, i);
/* For the 20 MHz, its center frequency is same with same channel */
if (i != 0)
*center_freq += 10;
*temp_chan = ieee80211_get_channel(ar->ah->hw->wiphy, *center_freq);
*tx_power = (*temp_chan)->max_reg_power;
}
void ath12k_mac_fill_reg_tpc_info(struct ath12k *ar,
struct ath12k_link_vif *arvif,
struct ieee80211_chanctx_conf *ctx)
{
struct ath12k_base *ab = ar->ab;
struct ath12k_reg_tpc_power_info *reg_tpc_info = &arvif->reg_tpc_info;
struct ieee80211_bss_conf *bss_conf = ath12k_mac_get_link_bss_conf(arvif);
struct ieee80211_channel *chan, *temp_chan;
u8 pwr_lvl_idx, num_pwr_levels, pwr_reduction;
bool is_psd_power = false, is_tpe_present = false;
s8 max_tx_power[ATH12K_NUM_PWR_LEVELS],
psd_power, tx_power, eirp_power;
u16 start_freq, center_freq;
chan = ctx->def.chan;
start_freq = ath12k_mac_get_6ghz_start_frequency(&ctx->def);
pwr_reduction = bss_conf->pwr_reduction;
if (arvif->reg_tpc_info.num_pwr_levels) {
is_tpe_present = true;
num_pwr_levels = arvif->reg_tpc_info.num_pwr_levels;
} else {
num_pwr_levels = ath12k_mac_get_num_pwr_levels(&ctx->def);
}
for (pwr_lvl_idx = 0; pwr_lvl_idx < num_pwr_levels; pwr_lvl_idx++) {
/* STA received TPE IE*/
if (is_tpe_present) {
/* local power is PSD power*/
if (chan->flags & IEEE80211_CHAN_PSD) {
/* Connecting AP is psd power */
if (reg_tpc_info->is_psd_power) {
is_psd_power = true;
ath12k_mac_get_psd_channel(ar, 20,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&tx_power);
psd_power = temp_chan->psd;
eirp_power = tx_power;
max_tx_power[pwr_lvl_idx] =
min_t(s8,
psd_power,
reg_tpc_info->tpe[pwr_lvl_idx]);
/* Connecting AP is not psd power */
} else {
ath12k_mac_get_eirp_power(ar,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&ctx->def,
&tx_power);
psd_power = temp_chan->psd;
/* convert psd power to EIRP power based
* on channel width
*/
tx_power =
min_t(s8, tx_power,
psd_power + 13 + pwr_lvl_idx * 3);
max_tx_power[pwr_lvl_idx] =
min_t(s8,
tx_power,
reg_tpc_info->tpe[pwr_lvl_idx]);
}
/* local power is not PSD power */
} else {
/* Connecting AP is psd power */
if (reg_tpc_info->is_psd_power) {
is_psd_power = true;
ath12k_mac_get_psd_channel(ar, 20,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&tx_power);
eirp_power = tx_power;
max_tx_power[pwr_lvl_idx] =
reg_tpc_info->tpe[pwr_lvl_idx];
/* Connecting AP is not psd power */
} else {
ath12k_mac_get_eirp_power(ar,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&ctx->def,
&tx_power);
max_tx_power[pwr_lvl_idx] =
min_t(s8,
tx_power,
reg_tpc_info->tpe[pwr_lvl_idx]);
}
}
/* STA not received TPE IE */
} else {
/* local power is PSD power*/
if (chan->flags & IEEE80211_CHAN_PSD) {
is_psd_power = true;
ath12k_mac_get_psd_channel(ar, 20,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&tx_power);
psd_power = temp_chan->psd;
eirp_power = tx_power;
max_tx_power[pwr_lvl_idx] = psd_power;
} else {
ath12k_mac_get_eirp_power(ar,
&start_freq,
&center_freq,
pwr_lvl_idx,
&temp_chan,
&ctx->def,
&tx_power);
max_tx_power[pwr_lvl_idx] = tx_power;
}
}
if (is_psd_power) {
/* If AP local power constraint is present */
if (pwr_reduction)
eirp_power = eirp_power - pwr_reduction;
/* If firmware updated max tx power is non zero, then take
* the min of firmware updated ap tx power
* and max power derived from above mentioned parameters.
*/
ath12k_dbg(ab, ATH12K_DBG_MAC,
"eirp power : %d firmware report power : %d\n",
eirp_power, ar->max_allowed_tx_power);
/* Firmware reports lower max_allowed_tx_power during vdev
* start response. In case of 6 GHz, firmware is not aware
* of EIRP power unless driver sets EIRP power through WMI
* TPC command. So radio which does not support idle power
* save can set maximum calculated EIRP power directly to
* firmware through TPC command without min comparison with
* vdev start response's max_allowed_tx_power.
*/
if (ar->max_allowed_tx_power && ab->hw_params->idle_ps)
eirp_power = min_t(s8,
eirp_power,
ar->max_allowed_tx_power);
} else {
/* If AP local power constraint is present */
if (pwr_reduction)
max_tx_power[pwr_lvl_idx] =
max_tx_power[pwr_lvl_idx] - pwr_reduction;
/* If firmware updated max tx power is non zero, then take
* the min of firmware updated ap tx power
* and max power derived from above mentioned parameters.
*/
if (ar->max_allowed_tx_power && ab->hw_params->idle_ps)
max_tx_power[pwr_lvl_idx] =
min_t(s8,
max_tx_power[pwr_lvl_idx],
ar->max_allowed_tx_power);
}
reg_tpc_info->chan_power_info[pwr_lvl_idx].chan_cfreq = center_freq;
reg_tpc_info->chan_power_info[pwr_lvl_idx].tx_power =
max_tx_power[pwr_lvl_idx];
}
reg_tpc_info->num_pwr_levels = num_pwr_levels;
reg_tpc_info->is_psd_power = is_psd_power;
reg_tpc_info->eirp_power = eirp_power;
reg_tpc_info->ap_power_type =
ath12k_reg_ap_pwr_convert(bss_conf->power_type);
}
static void ath12k_mac_parse_tx_pwr_env(struct ath12k *ar,
struct ath12k_link_vif *arvif)
{

3
drivers/net/wireless/ath/ath12k/mac.h
View File

@ -168,4 +168,7 @@ struct ath12k *ath12k_get_ar_by_vif(struct ieee80211_hw *hw,
int ath12k_mac_get_fw_stats(struct ath12k *ar, struct ath12k_fw_stats_req_params *param);
void ath12k_mac_update_freq_range(struct ath12k *ar,
u32 freq_low, u32 freq_high);
void ath12k_mac_fill_reg_tpc_info(struct ath12k *ar,
struct ath12k_link_vif *arvif,
struct ieee80211_chanctx_conf *ctx);
#endif