diff options
| author | Tzu-En Huang <tehuang@realtek.com> | 2020-06-03 17:42:14 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-07-15 12:08:11 +0300 |
| commit | 11fcb119a758e1e03ec77e20b386f4b93ae06601 (patch) | |
| tree | 841459c71dbd3a10c6225d91765e6dc98a123da4 /drivers/net/wireless/realtek/rtw88/rtw8821c.c | |
| parent | 1a94d93e648f6829a1dc30cb1ee4e1f92c7386e0 (diff) | |
rtw88: 8821c: add cck pd settings
CCK PD can reduce the number of false alarm of the CCK rates.
It dynamically adjusts the power threshold and CS ratio.
The values are compared to the values of the previous level, if
the level is changed, set new values of power threshold and CS
ratio.
Implement rtw_chip_ops::cck_pd_set() for 8821c.
Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603094218.19942-2-yhchuang@realtek.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/rtw8821c.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/rtw8821c.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index 4bd4164d23ef..904eb494ccad 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -102,6 +102,7 @@ static void rtw8821c_phy_set_param(struct rtw_dev *rtwdev) rtwdev->chip->ch_param[2] = rtw_read32_mask(rtwdev, REG_TXFILTER, MASKDWORD); rtw_phy_init(rtwdev); + rtwdev->dm_info.cck_pd_default = rtw_read8(rtwdev, REG_CSRATIO) & 0x1f; } static int rtw8821c_mac_init(struct rtw_dev *rtwdev) @@ -596,6 +597,29 @@ static void rtw8821c_phy_calibration(struct rtw_dev *rtwdev) rtw8821c_do_iqk(rtwdev); } +static void rtw8821c_phy_cck_pd_set(struct rtw_dev *rtwdev, u8 new_lvl) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u8 pd[CCK_PD_LV_MAX] = {3, 7, 13, 13, 13}; + + if (dm_info->min_rssi > 60) { + new_lvl = 4; + pd[4] = 0x1d; + goto set_cck_pd; + } + + if (dm_info->cck_pd_lv[RTW_CHANNEL_WIDTH_20][RF_PATH_A] == new_lvl) + return; + + dm_info->cck_fa_avg = CCK_FA_AVG_RESET; + +set_cck_pd: + dm_info->cck_pd_lv[RTW_CHANNEL_WIDTH_20][RF_PATH_A] = new_lvl; + rtw_write32_mask(rtwdev, REG_PWRTH, 0x3f0000, pd[new_lvl]); + rtw_write32_mask(rtwdev, REG_PWRTH2, 0x1f0000, + dm_info->cck_pd_default + new_lvl * 2); +} + static struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8821c[] = { {0x0086, RTW_PWR_CUT_ALL_MSK, @@ -1035,6 +1059,7 @@ static struct rtw_chip_ops rtw8821c_ops = { .cfg_ldo25 = rtw8821c_cfg_ldo25, .false_alarm_statistics = rtw8821c_false_alarm_statistics, .phy_calibration = rtw8821c_phy_calibration, + .cck_pd_set = rtw8821c_phy_cck_pd_set, }; struct rtw_chip_info rtw8821c_hw_spec = { |