From a11cddd42b67d9577299580ee42bfc06923626c1 Mon Sep 17 00:00:00 2001 From: Yan-Hsuan Chuang Date: Fri, 14 Jun 2019 15:24:13 +0800 Subject: [PATCH] rtw88: restore DACK results to save time DACK is done right after the hardware has been turned on, which means it will be done every time we leave the IDLE state. But it takes ~2 seconds to finish DACK. We can back up the results and restore them. And it only takes a few milliseconds to restore the results to the hardware, saving a lot of time. Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Kalle Valo --- drivers/net/wireless/realtek/rtw88/main.h | 8 + drivers/net/wireless/realtek/rtw88/rtw8822c.c | 351 +++++++++++++++++- drivers/net/wireless/realtek/rtw88/rtw8822c.h | 8 + 3 files changed, 355 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h index 414d21f987dd..927305075a79 100644 --- a/drivers/net/wireless/realtek/rtw88/main.h +++ b/drivers/net/wireless/realtek/rtw88/main.h @@ -841,6 +841,9 @@ struct rtw_chip_info { u32 rfe_defs_size; }; +#define DACK_MSBK_BACKUP_NUM 0xf +#define DACK_DCK_BACKUP_NUM 0x2 + struct rtw_dm_info { u32 cck_fa_cnt; u32 ofdm_fa_cnt; @@ -856,6 +859,11 @@ struct rtw_dm_info { u8 cck_gi_u_bnd; u8 cck_gi_l_bnd; + + /* backup dack results for each path and I/Q */ + u32 dack_adck[RTW_RF_PATH_MAX]; + u16 dack_msbk[RTW_RF_PATH_MAX][2][DACK_MSBK_BACKUP_NUM]; + u8 dack_dck[RTW_RF_PATH_MAX][2][DACK_DCK_BACKUP_NUM]; }; struct rtw_efuse { diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c index bbe61cc0c27e..f6214ff20337 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c @@ -203,7 +203,7 @@ static void rtw8822c_dac_iq_offset(struct rtw_dev *rtwdev, u32 *vec, u32 *val) *val = t; } -static u32 rtw8822c_get_path_base_addr(u8 path) +static u32 rtw8822c_get_path_write_addr(u8 path) { u32 base_addr; @@ -222,6 +222,25 @@ static u32 rtw8822c_get_path_base_addr(u8 path) return base_addr; } +static u32 rtw8822c_get_path_read_addr(u8 path) +{ + u32 base_addr; + + switch (path) { + case RF_PATH_A: + base_addr = 0x2800; + break; + case RF_PATH_B: + base_addr = 0x4500; + break; + default: + WARN_ON(1); + return -1; + } + + return base_addr; +} + static bool rtw8822c_dac_iq_check(struct rtw_dev *rtwdev, u32 value) { bool ret = true; @@ -316,8 +335,6 @@ static void rtw8822c_dac_cal_rf_mode(struct rtw_dev *rtwdev, u32 iv[DACK_SN_8822C], qv[DACK_SN_8822C]; u32 rf_a, rf_b; - mdelay(10); - rf_a = rtw_read_rf(rtwdev, RF_PATH_A, 0x0, RFREG_MASK); rf_b = rtw_read_rf(rtwdev, RF_PATH_B, 0x0, RFREG_MASK); @@ -347,6 +364,7 @@ static void rtw8822c_dac_bb_setting(struct rtw_dev *rtwdev) static void rtw8822c_dac_cal_adc(struct rtw_dev *rtwdev, u8 path, u32 *adc_ic, u32 *adc_qc) { + struct rtw_dm_info *dm_info = &rtwdev->dm_info; u32 ic = 0, qc = 0, temp = 0; u32 base_addr; u32 path_sel; @@ -354,7 +372,7 @@ static void rtw8822c_dac_cal_adc(struct rtw_dev *rtwdev, rtw_dbg(rtwdev, RTW_DBG_RFK, "[DACK] ADCK path(%d)\n", path); - base_addr = rtw8822c_get_path_base_addr(path); + base_addr = rtw8822c_get_path_write_addr(path); switch (path) { case RF_PATH_A: path_sel = 0xa0000; @@ -396,6 +414,7 @@ static void rtw8822c_dac_cal_adc(struct rtw_dev *rtwdev, } temp = (ic & 0x3ff) | ((qc & 0x3ff) << 10); rtw_write32(rtwdev, base_addr + 0x68, temp); + dm_info->dack_adck[path] = temp; rtw_dbg(rtwdev, RTW_DBG_RFK, "[DACK] ADCK 0x%08x=0x08%x\n", base_addr + 0x68, temp); /* check ADC DC offset */ @@ -422,10 +441,14 @@ static void rtw8822c_dac_cal_adc(struct rtw_dev *rtwdev, static void rtw8822c_dac_cal_step1(struct rtw_dev *rtwdev, u8 path) { + struct rtw_dm_info *dm_info = &rtwdev->dm_info; u32 base_addr; + u32 read_addr; - base_addr = rtw8822c_get_path_base_addr(path); + base_addr = rtw8822c_get_path_write_addr(path); + read_addr = rtw8822c_get_path_read_addr(path); + rtw_write32(rtwdev, base_addr + 0x68, dm_info->dack_adck[path]); rtw_write32(rtwdev, base_addr + 0x0c, 0xdff00220); if (path == RF_PATH_A) { rtw_write32(rtwdev, base_addr + 0x60, 0xf0040ff0); @@ -447,11 +470,13 @@ static void rtw8822c_dac_cal_step1(struct rtw_dev *rtwdev, u8 path) rtw_write32(rtwdev, base_addr + 0xcc, 0x0a11fb89); mdelay(1); rtw_write32(rtwdev, base_addr + 0xb8, 0x62000000); - mdelay(20); rtw_write32(rtwdev, base_addr + 0xd4, 0x62000000); mdelay(20); + if (!check_hw_ready(rtwdev, read_addr + 0x08, 0x7fff80, 0xffff) || + !check_hw_ready(rtwdev, read_addr + 0x34, 0x7fff80, 0xffff)) + rtw_err(rtwdev, "failed to wait for dack ready\n"); rtw_write32(rtwdev, base_addr + 0xb8, 0x02000000); - mdelay(20); + mdelay(1); rtw_write32(rtwdev, base_addr + 0xbc, 0x0008ff87); rtw_write32(rtwdev, 0x9b4, 0xdb6db600); rtw_write32(rtwdev, base_addr + 0x10, 0x02d508c5); @@ -465,7 +490,7 @@ static void rtw8822c_dac_cal_step2(struct rtw_dev *rtwdev, u32 base_addr; u32 ic, qc, ic_in, qc_in; - base_addr = rtw8822c_get_path_base_addr(path); + base_addr = rtw8822c_get_path_write_addr(path); rtw_write32_mask(rtwdev, base_addr + 0xbc, 0xf0000000, 0x0); rtw_write32_mask(rtwdev, base_addr + 0xc0, 0xf, 0x8); rtw_write32_mask(rtwdev, base_addr + 0xd8, 0xf0000000, 0x0); @@ -514,10 +539,12 @@ static void rtw8822c_dac_cal_step3(struct rtw_dev *rtwdev, u8 path, u32 *i_out, u32 *q_out) { u32 base_addr; + u32 read_addr; u32 ic, qc; u32 temp; - base_addr = rtw8822c_get_path_base_addr(path); + base_addr = rtw8822c_get_path_write_addr(path); + read_addr = rtw8822c_get_path_read_addr(path); ic = *ic_in; qc = *qc_in; @@ -542,11 +569,13 @@ static void rtw8822c_dac_cal_step3(struct rtw_dev *rtwdev, u8 path, rtw_write32(rtwdev, base_addr + 0xcc, 0x0a11fb89); mdelay(1); rtw_write32(rtwdev, base_addr + 0xb8, 0x62000000); - mdelay(20); rtw_write32(rtwdev, base_addr + 0xd4, 0x62000000); mdelay(20); + if (!check_hw_ready(rtwdev, read_addr + 0x24, 0x07f80000, ic) || + !check_hw_ready(rtwdev, read_addr + 0x50, 0x07f80000, qc)) + rtw_err(rtwdev, "failed to write IQ vector to hardware\n"); rtw_write32(rtwdev, base_addr + 0xb8, 0x02000000); - mdelay(20); + mdelay(1); rtw_write32_mask(rtwdev, base_addr + 0xbc, 0xe, 0x3); rtw_write32(rtwdev, 0x9b4, 0xdb6db600); @@ -583,7 +612,7 @@ static void rtw8822c_dac_cal_step3(struct rtw_dev *rtwdev, u8 path, static void rtw8822c_dac_cal_step4(struct rtw_dev *rtwdev, u8 path) { - u32 base_addr = rtw8822c_get_path_base_addr(path); + u32 base_addr = rtw8822c_get_path_write_addr(path); rtw_write32(rtwdev, base_addr + 0x68, 0x0); rtw_write32(rtwdev, base_addr + 0x10, 0x02d508c4); @@ -591,6 +620,296 @@ static void rtw8822c_dac_cal_step4(struct rtw_dev *rtwdev, u8 path) rtw_write32_mask(rtwdev, base_addr + 0x30, BIT(30), 0x1); } +static void rtw8822c_dac_cal_backup_vec(struct rtw_dev *rtwdev, + u8 path, u8 vec, u32 w_addr, u32 r_addr) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u16 val; + u32 i; + + if (WARN_ON(vec >= 2)) + return; + + for (i = 0; i < DACK_MSBK_BACKUP_NUM; i++) { + rtw_write32_mask(rtwdev, w_addr, 0xf0000000, i); + val = (u16)rtw_read32_mask(rtwdev, r_addr, 0x7fc0000); + dm_info->dack_msbk[path][vec][i] = val; + } +} + +static void rtw8822c_dac_cal_backup_path(struct rtw_dev *rtwdev, u8 path) +{ + u32 w_off = 0x1c; + u32 r_off = 0x2c; + u32 w_addr, r_addr; + + if (WARN_ON(path >= 2)) + return; + + /* backup I vector */ + w_addr = rtw8822c_get_path_write_addr(path) + 0xb0; + r_addr = rtw8822c_get_path_read_addr(path) + 0x10; + rtw8822c_dac_cal_backup_vec(rtwdev, path, 0, w_addr, r_addr); + + /* backup Q vector */ + w_addr = rtw8822c_get_path_write_addr(path) + 0xb0 + w_off; + r_addr = rtw8822c_get_path_read_addr(path) + 0x10 + r_off; + rtw8822c_dac_cal_backup_vec(rtwdev, path, 1, w_addr, r_addr); +} + +static void rtw8822c_dac_cal_backup_dck(struct rtw_dev *rtwdev) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u8 val; + + val = (u8)rtw_read32_mask(rtwdev, REG_DCKA_I_0, 0xf0000000); + dm_info->dack_dck[RF_PATH_A][0][0] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKA_I_1, 0xf); + dm_info->dack_dck[RF_PATH_A][0][1] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKA_Q_0, 0xf0000000); + dm_info->dack_dck[RF_PATH_A][1][0] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKA_Q_1, 0xf); + dm_info->dack_dck[RF_PATH_A][1][1] = val; + + val = (u8)rtw_read32_mask(rtwdev, REG_DCKB_I_0, 0xf0000000); + dm_info->dack_dck[RF_PATH_B][0][0] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKB_I_1, 0xf); + dm_info->dack_dck[RF_PATH_B][1][0] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKB_Q_0, 0xf0000000); + dm_info->dack_dck[RF_PATH_B][0][1] = val; + val = (u8)rtw_read32_mask(rtwdev, REG_DCKB_Q_1, 0xf); + dm_info->dack_dck[RF_PATH_B][1][1] = val; +} + +static void rtw8822c_dac_cal_backup(struct rtw_dev *rtwdev) +{ + u32 temp[3]; + + temp[0] = rtw_read32(rtwdev, 0x1860); + temp[1] = rtw_read32(rtwdev, 0x4160); + temp[2] = rtw_read32(rtwdev, 0x9b4); + + /* set clock */ + rtw_write32(rtwdev, 0x9b4, 0xdb66db00); + + /* backup path-A I/Q */ + rtw_write32_clr(rtwdev, 0x1830, BIT(30)); + rtw_write32_mask(rtwdev, 0x1860, 0xfc000000, 0x3c); + rtw8822c_dac_cal_backup_path(rtwdev, RF_PATH_A); + + /* backup path-B I/Q */ + rtw_write32_clr(rtwdev, 0x4130, BIT(30)); + rtw_write32_mask(rtwdev, 0x4160, 0xfc000000, 0x3c); + rtw8822c_dac_cal_backup_path(rtwdev, RF_PATH_B); + + rtw8822c_dac_cal_backup_dck(rtwdev); + rtw_write32_set(rtwdev, 0x1830, BIT(30)); + rtw_write32_set(rtwdev, 0x4130, BIT(30)); + + rtw_write32(rtwdev, 0x1860, temp[0]); + rtw_write32(rtwdev, 0x4160, temp[1]); + rtw_write32(rtwdev, 0x9b4, temp[2]); +} + +static void rtw8822c_dac_cal_restore_dck(struct rtw_dev *rtwdev) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u8 val; + + rtw_write32_set(rtwdev, REG_DCKA_I_0, BIT(19)); + val = dm_info->dack_dck[RF_PATH_A][0][0]; + rtw_write32_mask(rtwdev, REG_DCKA_I_0, 0xf0000000, val); + val = dm_info->dack_dck[RF_PATH_A][0][1]; + rtw_write32_mask(rtwdev, REG_DCKA_I_1, 0xf, val); + + rtw_write32_set(rtwdev, REG_DCKA_Q_0, BIT(19)); + val = dm_info->dack_dck[RF_PATH_A][1][0]; + rtw_write32_mask(rtwdev, REG_DCKA_Q_0, 0xf0000000, val); + val = dm_info->dack_dck[RF_PATH_A][1][1]; + rtw_write32_mask(rtwdev, REG_DCKA_Q_1, 0xf, val); + + rtw_write32_set(rtwdev, REG_DCKB_I_0, BIT(19)); + val = dm_info->dack_dck[RF_PATH_B][0][0]; + rtw_write32_mask(rtwdev, REG_DCKB_I_0, 0xf0000000, val); + val = dm_info->dack_dck[RF_PATH_B][0][1]; + rtw_write32_mask(rtwdev, REG_DCKB_I_1, 0xf, val); + + rtw_write32_set(rtwdev, REG_DCKB_Q_0, BIT(19)); + val = dm_info->dack_dck[RF_PATH_B][1][0]; + rtw_write32_mask(rtwdev, REG_DCKB_Q_0, 0xf0000000, val); + val = dm_info->dack_dck[RF_PATH_B][1][1]; + rtw_write32_mask(rtwdev, REG_DCKB_Q_1, 0xf, val); +} + +static void rtw8822c_dac_cal_restore_prepare(struct rtw_dev *rtwdev) +{ + rtw_write32(rtwdev, 0x9b4, 0xdb66db00); + + rtw_write32_mask(rtwdev, 0x18b0, BIT(27), 0x0); + rtw_write32_mask(rtwdev, 0x18cc, BIT(27), 0x0); + rtw_write32_mask(rtwdev, 0x41b0, BIT(27), 0x0); + rtw_write32_mask(rtwdev, 0x41cc, BIT(27), 0x0); + + rtw_write32_mask(rtwdev, 0x1830, BIT(30), 0x0); + rtw_write32_mask(rtwdev, 0x1860, 0xfc000000, 0x3c); + rtw_write32_mask(rtwdev, 0x18b4, BIT(0), 0x1); + rtw_write32_mask(rtwdev, 0x18d0, BIT(0), 0x1); + + rtw_write32_mask(rtwdev, 0x4130, BIT(30), 0x0); + rtw_write32_mask(rtwdev, 0x4160, 0xfc000000, 0x3c); + rtw_write32_mask(rtwdev, 0x41b4, BIT(0), 0x1); + rtw_write32_mask(rtwdev, 0x41d0, BIT(0), 0x1); + + rtw_write32_mask(rtwdev, 0x18b0, 0xf00, 0x0); + rtw_write32_mask(rtwdev, 0x18c0, BIT(14), 0x0); + rtw_write32_mask(rtwdev, 0x18cc, 0xf00, 0x0); + rtw_write32_mask(rtwdev, 0x18dc, BIT(14), 0x0); + + rtw_write32_mask(rtwdev, 0x18b0, BIT(0), 0x0); + rtw_write32_mask(rtwdev, 0x18cc, BIT(0), 0x0); + rtw_write32_mask(rtwdev, 0x18b0, BIT(0), 0x1); + rtw_write32_mask(rtwdev, 0x18cc, BIT(0), 0x1); + + rtw8822c_dac_cal_restore_dck(rtwdev); + + rtw_write32_mask(rtwdev, 0x18c0, 0x38000, 0x7); + rtw_write32_mask(rtwdev, 0x18dc, 0x38000, 0x7); + rtw_write32_mask(rtwdev, 0x41c0, 0x38000, 0x7); + rtw_write32_mask(rtwdev, 0x41dc, 0x38000, 0x7); + + rtw_write32_mask(rtwdev, 0x18b8, BIT(26) | BIT(25), 0x1); + rtw_write32_mask(rtwdev, 0x18d4, BIT(26) | BIT(25), 0x1); + + rtw_write32_mask(rtwdev, 0x41b0, 0xf00, 0x0); + rtw_write32_mask(rtwdev, 0x41c0, BIT(14), 0x0); + rtw_write32_mask(rtwdev, 0x41cc, 0xf00, 0x0); + rtw_write32_mask(rtwdev, 0x41dc, BIT(14), 0x0); + + rtw_write32_mask(rtwdev, 0x41b0, BIT(0), 0x0); + rtw_write32_mask(rtwdev, 0x41cc, BIT(0), 0x0); + rtw_write32_mask(rtwdev, 0x41b0, BIT(0), 0x1); + rtw_write32_mask(rtwdev, 0x41cc, BIT(0), 0x1); + + rtw_write32_mask(rtwdev, 0x41b8, BIT(26) | BIT(25), 0x1); + rtw_write32_mask(rtwdev, 0x41d4, BIT(26) | BIT(25), 0x1); +} + +static bool rtw8822c_dac_cal_restore_wait(struct rtw_dev *rtwdev, + u32 target_addr, u32 toggle_addr) +{ + u32 cnt = 0; + + do { + rtw_write32_mask(rtwdev, toggle_addr, BIT(26) | BIT(25), 0x0); + rtw_write32_mask(rtwdev, toggle_addr, BIT(26) | BIT(25), 0x2); + + if (rtw_read32_mask(rtwdev, target_addr, 0xf) == 0x6) + return true; + + } while (cnt++ < 100); + + return false; +} + +static bool rtw8822c_dac_cal_restore_path(struct rtw_dev *rtwdev, u8 path) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u32 w_off = 0x1c; + u32 r_off = 0x2c; + u32 w_i, r_i, w_q, r_q; + u32 value; + u32 i; + + w_i = rtw8822c_get_path_write_addr(path) + 0xb0; + r_i = rtw8822c_get_path_read_addr(path) + 0x08; + w_q = rtw8822c_get_path_write_addr(path) + 0xb0 + w_off; + r_q = rtw8822c_get_path_read_addr(path) + 0x08 + r_off; + + if (!rtw8822c_dac_cal_restore_wait(rtwdev, r_i, w_i + 0x8)) + return false; + + for (i = 0; i < DACK_MSBK_BACKUP_NUM; i++) { + rtw_write32_mask(rtwdev, w_i + 0x4, BIT(2), 0x0); + value = dm_info->dack_msbk[path][0][i]; + rtw_write32_mask(rtwdev, w_i + 0x4, 0xff8, value); + rtw_write32_mask(rtwdev, w_i, 0xf0000000, i); + rtw_write32_mask(rtwdev, w_i + 0x4, BIT(2), 0x1); + } + + rtw_write32_mask(rtwdev, w_i + 0x4, BIT(2), 0x0); + + if (!rtw8822c_dac_cal_restore_wait(rtwdev, r_q, w_q + 0x8)) + return false; + + for (i = 0; i < DACK_MSBK_BACKUP_NUM; i++) { + rtw_write32_mask(rtwdev, w_q + 0x4, BIT(2), 0x0); + value = dm_info->dack_msbk[path][1][i]; + rtw_write32_mask(rtwdev, w_q + 0x4, 0xff8, value); + rtw_write32_mask(rtwdev, w_q, 0xf0000000, i); + rtw_write32_mask(rtwdev, w_q + 0x4, BIT(2), 0x1); + } + rtw_write32_mask(rtwdev, w_q + 0x4, BIT(2), 0x0); + + rtw_write32_mask(rtwdev, w_i + 0x8, BIT(26) | BIT(25), 0x0); + rtw_write32_mask(rtwdev, w_q + 0x8, BIT(26) | BIT(25), 0x0); + rtw_write32_mask(rtwdev, w_i + 0x4, BIT(0), 0x0); + rtw_write32_mask(rtwdev, w_q + 0x4, BIT(0), 0x0); + + return true; +} + +static bool __rtw8822c_dac_cal_restore(struct rtw_dev *rtwdev) +{ + if (!rtw8822c_dac_cal_restore_path(rtwdev, RF_PATH_A)) + return false; + + if (!rtw8822c_dac_cal_restore_path(rtwdev, RF_PATH_B)) + return false; + + return true; +} + +static bool rtw8822c_dac_cal_restore(struct rtw_dev *rtwdev) +{ + struct rtw_dm_info *dm_info = &rtwdev->dm_info; + u32 temp[3]; + + /* sample the first element for both path's IQ vector */ + if (dm_info->dack_msbk[RF_PATH_A][0][0] == 0 && + dm_info->dack_msbk[RF_PATH_A][1][0] == 0 && + dm_info->dack_msbk[RF_PATH_B][0][0] == 0 && + dm_info->dack_msbk[RF_PATH_B][1][0] == 0) + return false; + + temp[0] = rtw_read32(rtwdev, 0x1860); + temp[1] = rtw_read32(rtwdev, 0x4160); + temp[2] = rtw_read32(rtwdev, 0x9b4); + + rtw8822c_dac_cal_restore_prepare(rtwdev); + if (!check_hw_ready(rtwdev, 0x2808, 0x7fff80, 0xffff) || + !check_hw_ready(rtwdev, 0x2834, 0x7fff80, 0xffff) || + !check_hw_ready(rtwdev, 0x4508, 0x7fff80, 0xffff) || + !check_hw_ready(rtwdev, 0x4534, 0x7fff80, 0xffff)) + return false; + + if (!__rtw8822c_dac_cal_restore(rtwdev)) { + rtw_err(rtwdev, "failed to restore dack vectors\n"); + return false; + } + + rtw_write32_mask(rtwdev, 0x1830, BIT(30), 0x1); + rtw_write32_mask(rtwdev, 0x4130, BIT(30), 0x1); + rtw_write32(rtwdev, 0x1860, temp[0]); + rtw_write32(rtwdev, 0x4160, temp[1]); + rtw_write32_mask(rtwdev, 0x18b0, BIT(27), 0x1); + rtw_write32_mask(rtwdev, 0x18cc, BIT(27), 0x1); + rtw_write32_mask(rtwdev, 0x41b0, BIT(27), 0x1); + rtw_write32_mask(rtwdev, 0x41cc, BIT(27), 0x1); + rtw_write32(rtwdev, 0x9b4, temp[2]); + + return true; +} + static void rtw8822c_rf_dac_cal(struct rtw_dev *rtwdev) { struct rtw_backup_info backup_rf[DACK_RF_8822C * DACK_PATH_8822C]; @@ -600,6 +919,11 @@ static void rtw8822c_rf_dac_cal(struct rtw_dev *rtwdev) u32 ic_a = 0x0, qc_a = 0x0, ic_b = 0x0, qc_b = 0x0; u32 adc_ic_a = 0x0, adc_qc_a = 0x0, adc_ic_b = 0x0, adc_qc_b = 0x0; + if (rtw8822c_dac_cal_restore(rtwdev)) + return; + + /* not able to restore, do it */ + rtw8822c_dac_backup_reg(rtwdev, backup, backup_rf); rtw8822c_dac_bb_setting(rtwdev); @@ -644,6 +968,9 @@ static void rtw8822c_rf_dac_cal(struct rtw_dev *rtwdev) rtw8822c_dac_restore_reg(rtwdev, backup, backup_rf); + /* backup results to restore, saving a lot of time */ + rtw8822c_dac_cal_backup(rtwdev); + rtw_dbg(rtwdev, RTW_DBG_RFK, "[DACK] path A: ic=0x%x, qc=0x%x\n", ic_a, qc_a); rtw_dbg(rtwdev, RTW_DBG_RFK, "[DACK] path B: ic=0x%x, qc=0x%x\n", ic_b, qc_b); rtw_dbg(rtwdev, RTW_DBG_RFK, "[DACK] path A: i=0x%x, q=0x%x\n", i_a, q_a); diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.h b/drivers/net/wireless/realtek/rtw88/rtw8822c.h index 06fbabc90e62..5ee1de41504d 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8822c.h +++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.h @@ -152,6 +152,10 @@ struct rtw8822c_efuse { #define REG_RXAGCCTL0 0x18ac #define BITS_RXAGC_CCK GENMASK(15, 12) #define BITS_RXAGC_OFDM GENMASK(8, 4) +#define REG_DCKA_I_0 0x18bc +#define REG_DCKA_I_1 0x18c0 +#define REG_DCKA_Q_0 0x18d8 +#define REG_DCKA_Q_1 0x18dc #define REG_CCKSB 0x1a00 #define REG_RXCCKSEL 0x1a04 #define REG_BGCTRL 0x1a14 @@ -197,5 +201,9 @@ struct rtw8822c_efuse { #define REG_ORITXCODE2 0x4100 #define REG_3WIRE2 0x410c #define REG_RXAGCCTL 0x41ac +#define REG_DCKB_I_0 0x41bc +#define REG_DCKB_I_1 0x41c0 +#define REG_DCKB_Q_0 0x41d8 +#define REG_DCKB_Q_1 0x41dc #endif -- 2.30.2