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wifi: rtw89: 8852b: add chip_ops to read phy cap

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This efuse region is to store PHY calibration, and it is a separated region
from the region that stores MAC address. Then, use these data to configure
via chip_ops::power_trim that is a calibration mechanism of TX power.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220928084336.34981-9-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih 2022-09-28 16:43:35 +08:00 committed by Kalle Valo
parent 132dc4fe5b
commit 134cf7c015
2 changed files with 188 additions and 0 deletions
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4
drivers/net/wireless/realtek/rtw89/core.h
View File

@ -84,6 +84,7 @@ enum rtw89_subband {
RTW89_CH_6G_BAND_IDX7, /* Ultra-high */
RTW89_SUBBAND_NR,
RTW89_SUBBAND_2GHZ_5GHZ_NR = RTW89_CH_5G_BAND_4 + 1,
};
enum rtw89_gain_offset {
@ -2196,6 +2197,7 @@ struct rtw89_sta {
struct rtw89_efuse {
bool valid;
bool power_k_valid;
u8 xtal_cap;
u8 addr[ETH_ALEN];
u8 rfe_type;
@ -3425,8 +3427,10 @@ struct rtw89_phy_bb_gain_info {
struct rtw89_phy_efuse_gain {
bool offset_valid;
bool comp_valid;
s8 offset[RF_PATH_MAX][RTW89_GAIN_OFFSET_NR]; /* S(8, 0) */
s8 offset_base[RTW89_PHY_MAX]; /* S(8, 4) */
s8 comp[RF_PATH_MAX][RTW89_SUBBAND_NR]; /* S(8, 0) */
};
struct rtw89_dev {

184
drivers/net/wireless/realtek/rtw89/rtw8852b.c
View File

@ -123,6 +123,186 @@ static int rtw8852b_read_efuse(struct rtw89_dev *rtwdev, u8 *log_map)
return 0;
}
static void rtw8852b_phycap_parsing_power_cal(struct rtw89_dev *rtwdev, u8 *phycap_map)
{
#define PWR_K_CHK_OFFSET 0x5E9
#define PWR_K_CHK_VALUE 0xAA
u32 offset = PWR_K_CHK_OFFSET - rtwdev->chip->phycap_addr;
if (phycap_map[offset] == PWR_K_CHK_VALUE)
rtwdev->efuse.power_k_valid = true;
}
static void rtw8852b_phycap_parsing_tssi(struct rtw89_dev *rtwdev, u8 *phycap_map)
{
struct rtw89_tssi_info *tssi = &rtwdev->tssi;
static const u32 tssi_trim_addr[RF_PATH_NUM_8852B] = {0x5D6, 0x5AB};
u32 addr = rtwdev->chip->phycap_addr;
bool pg = false;
u32 ofst;
u8 i, j;
for (i = 0; i < RF_PATH_NUM_8852B; i++) {
for (j = 0; j < TSSI_TRIM_CH_GROUP_NUM; j++) {
/* addrs are in decreasing order */
ofst = tssi_trim_addr[i] - addr - j;
tssi->tssi_trim[i][j] = phycap_map[ofst];
if (phycap_map[ofst] != 0xff)
pg = true;
}
}
if (!pg) {
memset(tssi->tssi_trim, 0, sizeof(tssi->tssi_trim));
rtw89_debug(rtwdev, RTW89_DBG_TSSI,
"[TSSI][TRIM] no PG, set all trim info to 0\n");
}
for (i = 0; i < RF_PATH_NUM_8852B; i++)
for (j = 0; j < TSSI_TRIM_CH_GROUP_NUM; j++)
rtw89_debug(rtwdev, RTW89_DBG_TSSI,
"[TSSI] path=%d idx=%d trim=0x%x addr=0x%x\n",
i, j, tssi->tssi_trim[i][j],
tssi_trim_addr[i] - j);
}
static void rtw8852b_phycap_parsing_thermal_trim(struct rtw89_dev *rtwdev,
u8 *phycap_map)
{
struct rtw89_power_trim_info *info = &rtwdev->pwr_trim;
static const u32 thm_trim_addr[RF_PATH_NUM_8852B] = {0x5DF, 0x5DC};
u32 addr = rtwdev->chip->phycap_addr;
u8 i;
for (i = 0; i < RF_PATH_NUM_8852B; i++) {
info->thermal_trim[i] = phycap_map[thm_trim_addr[i] - addr];
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[THERMAL][TRIM] path=%d thermal_trim=0x%x\n",
i, info->thermal_trim[i]);
if (info->thermal_trim[i] != 0xff)
info->pg_thermal_trim = true;
}
}
static void rtw8852b_thermal_trim(struct rtw89_dev *rtwdev)
{
#define __thm_setting(raw) \
({ \
u8 __v = (raw); \
((__v & 0x1) << 3) | ((__v & 0x1f) >> 1); \
})
struct rtw89_power_trim_info *info = &rtwdev->pwr_trim;
u8 i, val;
if (!info->pg_thermal_trim) {
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[THERMAL][TRIM] no PG, do nothing\n");
return;
}
for (i = 0; i < RF_PATH_NUM_8852B; i++) {
val = __thm_setting(info->thermal_trim[i]);
rtw89_write_rf(rtwdev, i, RR_TM2, RR_TM2_OFF, val);
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[THERMAL][TRIM] path=%d thermal_setting=0x%x\n",
i, val);
}
#undef __thm_setting
}
static void rtw8852b_phycap_parsing_pa_bias_trim(struct rtw89_dev *rtwdev,
u8 *phycap_map)
{
struct rtw89_power_trim_info *info = &rtwdev->pwr_trim;
static const u32 pabias_trim_addr[RF_PATH_NUM_8852B] = {0x5DE, 0x5DB};
u32 addr = rtwdev->chip->phycap_addr;
u8 i;
for (i = 0; i < RF_PATH_NUM_8852B; i++) {
info->pa_bias_trim[i] = phycap_map[pabias_trim_addr[i] - addr];
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[PA_BIAS][TRIM] path=%d pa_bias_trim=0x%x\n",
i, info->pa_bias_trim[i]);
if (info->pa_bias_trim[i] != 0xff)
info->pg_pa_bias_trim = true;
}
}
static void rtw8852b_pa_bias_trim(struct rtw89_dev *rtwdev)
{
struct rtw89_power_trim_info *info = &rtwdev->pwr_trim;
u8 pabias_2g, pabias_5g;
u8 i;
if (!info->pg_pa_bias_trim) {
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[PA_BIAS][TRIM] no PG, do nothing\n");
return;
}
for (i = 0; i < RF_PATH_NUM_8852B; i++) {
pabias_2g = FIELD_GET(GENMASK(3, 0), info->pa_bias_trim[i]);
pabias_5g = FIELD_GET(GENMASK(7, 4), info->pa_bias_trim[i]);
rtw89_debug(rtwdev, RTW89_DBG_RFK,
"[PA_BIAS][TRIM] path=%d 2G=0x%x 5G=0x%x\n",
i, pabias_2g, pabias_5g);
rtw89_write_rf(rtwdev, i, RR_BIASA, RR_BIASA_TXG, pabias_2g);
rtw89_write_rf(rtwdev, i, RR_BIASA, RR_BIASA_TXA, pabias_5g);
}
}
static void rtw8852b_phycap_parsing_gain_comp(struct rtw89_dev *rtwdev, u8 *phycap_map)
{
static const u32 comp_addrs[][RTW89_SUBBAND_2GHZ_5GHZ_NR] = {
{0x5BB, 0x5BA, 0, 0x5B9, 0x5B8},
{0x590, 0x58F, 0, 0x58E, 0x58D},
};
struct rtw89_phy_efuse_gain *gain = &rtwdev->efuse_gain;
u32 phycap_addr = rtwdev->chip->phycap_addr;
bool valid = false;
int path, i;
u8 data;
for (path = 0; path < 2; path++)
for (i = 0; i < RTW89_SUBBAND_2GHZ_5GHZ_NR; i++) {
if (comp_addrs[path][i] == 0)
continue;
data = phycap_map[comp_addrs[path][i] - phycap_addr];
valid |= _decode_efuse_gain(data, NULL,
&gain->comp[path][i]);
}
gain->comp_valid = valid;
}
static int rtw8852b_read_phycap(struct rtw89_dev *rtwdev, u8 *phycap_map)
{
rtw8852b_phycap_parsing_power_cal(rtwdev, phycap_map);
rtw8852b_phycap_parsing_tssi(rtwdev, phycap_map);
rtw8852b_phycap_parsing_thermal_trim(rtwdev, phycap_map);
rtw8852b_phycap_parsing_pa_bias_trim(rtwdev, phycap_map);
rtw8852b_phycap_parsing_gain_comp(rtwdev, phycap_map);
return 0;
}
static void rtw8852b_power_trim(struct rtw89_dev *rtwdev)
{
rtw8852b_thermal_trim(rtwdev);
rtw8852b_pa_bias_trim(rtwdev);
}
static u32 rtw8852b_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,
enum rtw89_phy_idx phy_idx, s16 ref)
{
@ -369,6 +549,8 @@ static const struct rtw89_chip_ops rtw8852b_chip_ops = {
.enable_bb_rf = rtw8852b_mac_enable_bb_rf,
.disable_bb_rf = rtw8852b_mac_disable_bb_rf,
.read_efuse = rtw8852b_read_efuse,
.read_phycap = rtw8852b_read_phycap,
.power_trim = rtw8852b_power_trim,
.set_txpwr = rtw8852b_set_txpwr,
.set_txpwr_ctrl = rtw8852b_set_txpwr_ctrl,
.init_txpwr_unit = rtw8852b_init_txpwr_unit,
@ -386,6 +568,8 @@ const struct rtw89_chip_info rtw8852b_chip_info = {
.limit_efuse_size = 1280,
.dav_phy_efuse_size = 96,
.dav_log_efuse_size = 16,
.phycap_addr = 0x580,
.phycap_size = 128,
.dma_ch_mask = BIT(RTW89_DMA_ACH4) | BIT(RTW89_DMA_ACH5) |
BIT(RTW89_DMA_ACH6) | BIT(RTW89_DMA_ACH7) |
BIT(RTW89_DMA_B1MG) | BIT(RTW89_DMA_B1HI),