Commit 96036123 authored by Tzu-En Huang's avatar Tzu-En Huang Committed by Kalle Valo
Browse files

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: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarTzu-En Huang <tehuang@realtek.com>
Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200616091625.26489-7-yhchuang@realtek.com
parent d1904061

drivers/net/wireless/realtek/rtw88/rtw8821c.c

+53 −0
Original line number Original line Diff line number Diff line
@@ -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[] = {

static struct rtw_pwr_seq_cmd trans_carddis_to_cardemu_8821c[] = {

	{0x0086,

	{0x0086,

	 RTW_PWR_CUT_ALL_MSK,

	 RTW_PWR_CUT_ALL_MSK,
@@ -948,6 +1000,7 @@ static struct rtw_chip_ops rtw8821c_ops = { 
	.set_antenna		= NULL,

	.set_antenna		= NULL,

	.set_tx_power_index	= rtw8821c_set_tx_power_index,

	.set_tx_power_index	= rtw8821c_set_tx_power_index,

	.cfg_ldo25		= rtw8821c_cfg_ldo25,

	.cfg_ldo25		= rtw8821c_cfg_ldo25,

	.false_alarm_statistics	= rtw8821c_false_alarm_statistics,

};

};





struct rtw_chip_info rtw8821c_hw_spec = {

struct rtw_chip_info rtw8821c_hw_spec = {

drivers/net/wireless/realtek/rtw88/rtw8821c.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -183,13 +183,16 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data) 
#define REG_ACBB0	0x948

#define REG_ACBB0	0x948

#define REG_ACBBRXFIR	0x94c

#define REG_ACBBRXFIR	0x94c

#define REG_ACGG2TBL	0x958

#define REG_ACGG2TBL	0x958

#define REG_FAS		0x9a4

#define REG_RXSB	0xa00

#define REG_RXSB	0xa00

#define REG_ADCINI	0xa04

#define REG_ADCINI	0xa04

#define REG_TXSF2	0xa24

#define REG_TXSF2	0xa24

#define REG_TXSF6	0xa28

#define REG_TXSF6	0xa28

#define REG_FA_CCK	0xa5c

#define REG_RXDESC	0xa2c

#define REG_RXDESC	0xa2c

#define REG_ENTXCCK	0xa80

#define REG_ENTXCCK	0xa80

#define REG_TXFILTER	0xaac

#define REG_TXFILTER	0xaac

#define REG_CNTRST	0xb58

#define REG_AGCTR_A	0xc08

#define REG_AGCTR_A	0xc08

#define REG_TXSCALE_A	0xc1c

#define REG_TXSCALE_A	0xc1c

#define REG_TXDFIR	0xc20

#define REG_TXDFIR	0xc20
@@ -201,6 +204,13 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data) 
#define REG_RFEINV	0xcbc

#define REG_RFEINV	0xcbc

#define REG_AGCTR_B	0xe08

#define REG_AGCTR_B	0xe08

#define REG_RXIGI_B	0xe50

#define REG_RXIGI_B	0xe50

#define REG_CRC_CCK	0xf04

#define REG_CRC_OFDM	0xf14

#define REG_CRC_HT	0xf10

#define REG_CRC_VHT	0xf0c

#define REG_CCA_OFDM	0xf08

#define REG_FA_OFDM	0xf48

#define REG_CCA_CCK	0xfcc

#define REG_ANTWT	0x1904

#define REG_ANTWT	0x1904

#define REG_IQKFAILMSK	0x1bf0

#define REG_IQKFAILMSK	0x1bf0