From 5f028a9cf4b9e503151b25284384269beb0b742e Mon Sep 17 00:00:00 2001 From: Ping-Ke Shih Date: Mon, 4 May 2020 18:50:05 +0800 Subject: rtw88: 8723d: Add set_channel Set MAC/BB/RF register according to specified channel. The function rtw_set_channel_mac() is used to set MAC registers, but 8723D only need some of them. For channel 14, we need to set different CCK DFIR values, so restore the values when channel 1 to 13 is selected. Spur calibration is needed in channel 13 and 14, and we do notch if spur is over threshold. Signed-off-by: Ping-Ke Shih Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200504105010.10780-4-yhchuang@realtek.com --- drivers/net/wireless/realtek/rtw88/mac.c | 3 + drivers/net/wireless/realtek/rtw88/rtw8723d.c | 161 ++++++++++++++++++++++++++ drivers/net/wireless/realtek/rtw88/rtw8723d.h | 31 +++++ 3 files changed, 195 insertions(+) (limited to 'drivers/net/wireless') diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c index bd82b48e02f4..e8ffeb338584 100644 --- a/drivers/net/wireless/realtek/rtw88/mac.c +++ b/drivers/net/wireless/realtek/rtw88/mac.c @@ -40,6 +40,9 @@ void rtw_set_channel_mac(struct rtw_dev *rtwdev, u8 channel, u8 bw, } rtw_write32(rtwdev, REG_WMAC_TRXPTCL_CTL, value32); + if (rtw_chip_wcpu_11n(rtwdev)) + return; + value32 = rtw_read32(rtwdev, REG_AFE_CTRL1) & ~(BIT_MAC_CLK_SEL); value32 |= (MAC_CLK_HW_DEF_80M << BIT_SHIFT_MAC_CLK_SEL); rtw_write32(rtwdev, REG_AFE_CTRL1, value32); diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.c b/drivers/net/wireless/realtek/rtw88/rtw8723d.c index 653cfa9445fc..6011ca8352b3 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8723d.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.c @@ -287,6 +287,166 @@ static void rtw8723d_query_rx_desc(struct rtw_dev *rtwdev, u8 *rx_desc, rtw_rx_fill_rx_status(rtwdev, pkt_stat, hdr, rx_status, phy_status); } +static bool rtw8723d_check_spur_ov_thres(struct rtw_dev *rtwdev, + u8 channel, u32 thres) +{ + u32 freq; + bool ret = false; + + if (channel == 13) + freq = FREQ_CH13; + else if (channel == 14) + freq = FREQ_CH14; + else + return false; + + rtw_write32(rtwdev, REG_ANALOG_P4, DIS_3WIRE); + rtw_write32(rtwdev, REG_PSDFN, freq); + rtw_write32(rtwdev, REG_PSDFN, START_PSD | freq); + + msleep(30); + if (rtw_read32(rtwdev, REG_PSDRPT) >= thres) + ret = true; + + rtw_write32(rtwdev, REG_PSDFN, freq); + rtw_write32(rtwdev, REG_ANALOG_P4, EN_3WIRE); + + return ret; +} + +static void rtw8723d_cfg_notch(struct rtw_dev *rtwdev, u8 channel, bool notch) +{ + if (!notch) { + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_MASK_RXDSP, 0x1f); + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_EN_RXDSP, 0x0); + rtw_write32(rtwdev, REG_OFDM1_CSI1, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI2, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI3, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI4, 0x00000000); + rtw_write32_mask(rtwdev, REG_OFDM1_CFOTRK, BIT_EN_CFOTRK, 0x0); + return; + } + + switch (channel) { + case 13: + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_MASK_RXDSP, 0xb); + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_EN_RXDSP, 0x1); + rtw_write32(rtwdev, REG_OFDM1_CSI1, 0x04000000); + rtw_write32(rtwdev, REG_OFDM1_CSI2, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI3, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI4, 0x00000000); + rtw_write32_mask(rtwdev, REG_OFDM1_CFOTRK, BIT_EN_CFOTRK, 0x1); + break; + case 14: + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_MASK_RXDSP, 0x5); + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_EN_RXDSP, 0x1); + rtw_write32(rtwdev, REG_OFDM1_CSI1, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI2, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI3, 0x00000000); + rtw_write32(rtwdev, REG_OFDM1_CSI4, 0x00080000); + rtw_write32_mask(rtwdev, REG_OFDM1_CFOTRK, BIT_EN_CFOTRK, 0x1); + break; + default: + rtw_write32_mask(rtwdev, REG_OFDM0_RXDSP, BIT_EN_RXDSP, 0x0); + rtw_write32_mask(rtwdev, REG_OFDM1_CFOTRK, BIT_EN_CFOTRK, 0x0); + break; + } +} + +static void rtw8723d_spur_cal(struct rtw_dev *rtwdev, u8 channel) +{ + bool notch; + + if (channel < 13) { + rtw8723d_cfg_notch(rtwdev, channel, false); + return; + } + + notch = rtw8723d_check_spur_ov_thres(rtwdev, channel, SPUR_THRES); + rtw8723d_cfg_notch(rtwdev, channel, notch); +} + +static void rtw8723d_set_channel_rf(struct rtw_dev *rtwdev, u8 channel, u8 bw) +{ + u32 rf_cfgch_a, rf_cfgch_b; + + rf_cfgch_a = rtw_read_rf(rtwdev, RF_PATH_A, RF_CFGCH, RFREG_MASK); + rf_cfgch_b = rtw_read_rf(rtwdev, RF_PATH_B, RF_CFGCH, RFREG_MASK); + + rf_cfgch_a &= ~RFCFGCH_CHANNEL_MASK; + rf_cfgch_b &= ~RFCFGCH_CHANNEL_MASK; + rf_cfgch_a |= (channel & RFCFGCH_CHANNEL_MASK); + rf_cfgch_b |= (channel & RFCFGCH_CHANNEL_MASK); + + rf_cfgch_a &= ~RFCFGCH_BW_MASK; + switch (bw) { + case RTW_CHANNEL_WIDTH_20: + rf_cfgch_a |= RFCFGCH_BW_20M; + break; + case RTW_CHANNEL_WIDTH_40: + rf_cfgch_a |= RFCFGCH_BW_40M; + break; + default: + break; + } + + rtw_write_rf(rtwdev, RF_PATH_A, RF_CFGCH, RFREG_MASK, rf_cfgch_a); + rtw_write_rf(rtwdev, RF_PATH_B, RF_CFGCH, RFREG_MASK, rf_cfgch_b); + + rtw8723d_spur_cal(rtwdev, channel); +} + +static const struct rtw_backup_info cck_dfir_cfg[][CCK_DFIR_NR] = { + [0] = { + { .len = 4, .reg = 0xA24, .val = 0x64B80C1C }, + { .len = 4, .reg = 0xA28, .val = 0x00008810 }, + { .len = 4, .reg = 0xAAC, .val = 0x01235667 }, + }, + [1] = { + { .len = 4, .reg = 0xA24, .val = 0x0000B81C }, + { .len = 4, .reg = 0xA28, .val = 0x00000000 }, + { .len = 4, .reg = 0xAAC, .val = 0x00003667 }, + }, +}; + +static void rtw8723d_set_channel_bb(struct rtw_dev *rtwdev, u8 channel, u8 bw, + u8 primary_ch_idx) +{ + const struct rtw_backup_info *cck_dfir; + int i; + + cck_dfir = channel <= 13 ? cck_dfir_cfg[0] : cck_dfir_cfg[1]; + + for (i = 0; i < CCK_DFIR_NR; i++, cck_dfir++) + rtw_write32(rtwdev, cck_dfir->reg, cck_dfir->val); + + switch (bw) { + case RTW_CHANNEL_WIDTH_20: + rtw_write32_mask(rtwdev, REG_FPGA0_RFMOD, BIT_MASK_RFMOD, 0x0); + rtw_write32_mask(rtwdev, REG_FPGA1_RFMOD, BIT_MASK_RFMOD, 0x0); + rtw_write32_mask(rtwdev, REG_BBRX_DFIR, BIT_RXBB_DFIR_EN, 1); + rtw_write32_mask(rtwdev, REG_BBRX_DFIR, BIT_MASK_RXBB_DFIR, 0xa); + break; + case RTW_CHANNEL_WIDTH_40: + rtw_write32_mask(rtwdev, REG_FPGA0_RFMOD, BIT_MASK_RFMOD, 0x1); + rtw_write32_mask(rtwdev, REG_FPGA1_RFMOD, BIT_MASK_RFMOD, 0x1); + rtw_write32_mask(rtwdev, REG_BBRX_DFIR, BIT_RXBB_DFIR_EN, 0); + rtw_write32_mask(rtwdev, REG_CCK0_SYS, BIT_CCK_SIDE_BAND, + (primary_ch_idx == RTW_SC_20_UPPER ? 1 : 0)); + break; + default: + break; + } +} + +static void rtw8723d_set_channel(struct rtw_dev *rtwdev, u8 channel, u8 bw, + u8 primary_chan_idx) +{ + rtw8723d_set_channel_rf(rtwdev, channel, bw); + rtw_set_channel_mac(rtwdev, channel, bw, primary_chan_idx); + rtw8723d_set_channel_bb(rtwdev, channel, bw, primary_chan_idx); +} + #define BIT_CFENDFORM BIT(9) #define BIT_WMAC_TCR_ERR0 BIT(12) #define BIT_WMAC_TCR_ERR1 BIT(13) @@ -383,6 +543,7 @@ static struct rtw_chip_ops rtw8723d_ops = { .phy_set_param = rtw8723d_phy_set_param, .read_efuse = rtw8723d_read_efuse, .query_rx_desc = rtw8723d_query_rx_desc, + .set_channel = rtw8723d_set_channel, .mac_init = rtw8723d_mac_init, .read_rf = rtw_phy_read_rf_sipi, .write_rf = rtw_phy_write_rf_reg_sipi, diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.h b/drivers/net/wireless/realtek/rtw88/rtw8723d.h index 035049a29e7c..06614602de54 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8723d.h +++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.h @@ -66,7 +66,38 @@ struct rtw8723d_efuse { #define GET_PHY_STAT_P1_RXSNR_A(phy_stat) \ le32_get_bits(*((__le32 *)(phy_stat) + 0x06), GENMASK(7, 0)) +#define SPUR_THRES 0x16 +#define CCK_DFIR_NR 3 +#define DIS_3WIRE 0xccf000c0 +#define EN_3WIRE 0xccc000c0 +#define START_PSD 0x400000 +#define FREQ_CH13 0xfccd +#define FREQ_CH14 0xff9a +#define RFCFGCH_CHANNEL_MASK GENMASK(7, 0) +#define RFCFGCH_BW_MASK (BIT(11) | BIT(10)) +#define RFCFGCH_BW_20M (BIT(11) | BIT(10)) +#define RFCFGCH_BW_40M BIT(10) +#define BIT_MASK_RFMOD BIT(0) + +#define REG_PSDFN 0x0808 +#define REG_ANALOG_P4 0x088c +#define REG_PSDRPT 0x08b4 +#define REG_FPGA1_RFMOD 0x0900 +#define REG_BBRX_DFIR 0x0954 +#define BIT_MASK_RXBB_DFIR GENMASK(27, 24) +#define BIT_RXBB_DFIR_EN BIT(19) +#define REG_CCK0_SYS 0x0a00 +#define BIT_CCK_SIDE_BAND BIT(4) +#define REG_OFDM0_RXDSP 0x0c40 +#define BIT_MASK_RXDSP GENMASK(28, 24) +#define BIT_EN_RXDSP BIT(9) #define REG_OFDM0_XAAGC1 0x0c50 #define REG_OFDM0_XBAGC1 0x0c58 +#define REG_OFDM1_CFOTRK 0x0d2c +#define BIT_EN_CFOTRK BIT(28) +#define REG_OFDM1_CSI1 0x0d40 +#define REG_OFDM1_CSI2 0x0d44 +#define REG_OFDM1_CSI3 0x0d48 +#define REG_OFDM1_CSI4 0x0d4c #endif -- cgit v1.2.3