diff options
| author | Tzu-En Huang <tehuang@realtek.com> | 2020-06-16 17:16:24 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-07-15 12:06:57 +0300 |
| commit | 960361238b867aa169ffec93d965ea329081cc86 (patch) | |
| tree | 6824b33e708930ce01551cec3b2590a1fd08668f /drivers/net/wireless/realtek/rtw88/rtw8821c.c | |
| parent | d19040618a22bd9acb698be71cd39f05f699bd62 (diff) | |
rtw88: 8821c: add false alarm statistics
False alarm statistics can be used to adjust the RX gain. This
helps the driver to adapt to different circumstances.
Implement rtw_chip_ops::false_alarm_statistics() for 8821c.
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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/20200616091625.26489-7-yhchuang@realtek.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/rtw8821c.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/rtw8821c.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index bf1a2c92f2a5..ffcb427468d7 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -511,6 +511,58 @@ static void rtw8821c_set_tx_power_index(struct rtw_dev *rtwdev) } } +static void rtw8821c_false_alarm_statistics(struct rtw_dev *rtwdev) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u32 cck_enable; + u32 cck_fa_cnt; + u32 ofdm_fa_cnt; + u32 crc32_cnt; + u32 cca32_cnt; + + cck_enable = rtw_read32(rtwdev, REG_RXPSEL) & BIT(28); + cck_fa_cnt = rtw_read16(rtwdev, REG_FA_CCK); + ofdm_fa_cnt = rtw_read16(rtwdev, REG_FA_OFDM); + + dm_info->cck_fa_cnt = cck_fa_cnt; + dm_info->ofdm_fa_cnt = ofdm_fa_cnt; + if (cck_enable) + dm_info->total_fa_cnt += cck_fa_cnt; + dm_info->total_fa_cnt = ofdm_fa_cnt; + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_CCK); + dm_info->cck_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->cck_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_OFDM); + dm_info->ofdm_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->ofdm_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_HT); + dm_info->ht_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->ht_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + crc32_cnt = rtw_read32(rtwdev, REG_CRC_VHT); + dm_info->vht_ok_cnt = FIELD_GET(GENMASK(15, 0), crc32_cnt); + dm_info->vht_err_cnt = FIELD_GET(GENMASK(31, 16), crc32_cnt); + + cca32_cnt = rtw_read32(rtwdev, REG_CCA_OFDM); + dm_info->ofdm_cca_cnt = FIELD_GET(GENMASK(31, 16), cca32_cnt); + dm_info->total_cca_cnt = dm_info->ofdm_cca_cnt; + if (cck_enable) { + cca32_cnt = rtw_read32(rtwdev, REG_CCA_CCK); + dm_info->cck_cca_cnt = FIELD_GET(GENMASK(15, 0), cca32_cnt); + dm_info->total_cca_cnt += dm_info->cck_cca_cnt; + } + + rtw_write32_set(rtwdev, REG_FAS, BIT(17)); + rtw_write32_clr(rtwdev, REG_FAS, BIT(17)); + rtw_write32_clr(rtwdev, REG_RXDESC, BIT(15)); + rtw_write32_set(rtwdev, REG_RXDESC, BIT(15)); + rtw_write32_set(rtwdev, REG_CNTRST, BIT(0)); + rtw_write32_clr(rtwdev, REG_CNTRST, BIT(0)); +} + static struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8821c[] = { {0x0086, RTW_PWR_CUT_ALL_MSK, @@ -948,6 +1000,7 @@ static struct rtw_chip_ops rtw8821c_ops = { .set_antenna = NULL, .set_tx_power_index = rtw8821c_set_tx_power_index, .cfg_ldo25 = rtw8821c_cfg_ldo25, + .false_alarm_statistics = rtw8821c_false_alarm_statistics, }; struct rtw_chip_info rtw8821c_hw_spec = { |