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Commit f991f4e9 authored by Jes Sorensen's avatar Jes Sorensen Committed by Kalle Valo
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rtl8xxxu: Implement IQK calibration for 8192eu 

8192eu has it's own IQK calibration procedure, and notably uses
undocumented RF register 0x56 in the process.
Signed-off-by: default avatarJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 70bc1e24
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Showing with 608 additions and 1 deletion
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
View file @ f991f4e9
......@@ -4955,6 +4955,334 @@ static int rtl8723bu_iqk_path_b(struct rtl8xxxu_priv *priv)
}
#endif
static int rtl8192eu_iqk_path_a(struct rtl8xxxu_priv *priv)
{
u32 reg_eac, reg_e94, reg_e9c;
int result = 0;
/*
* TX IQK
* PA/PAD controlled by 0x0
*/
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00180);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* Path A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82140303);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x68160000);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x00462911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_e94 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_A);
reg_e9c = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_A);
if (!(reg_eac & BIT(28)) &&
((reg_e94 & 0x03ff0000) != 0x01420000) &&
((reg_e9c & 0x03ff0000) != 0x00420000))
result |= 0x01;
return result;
}
static int rtl8192eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
{
u32 reg_ea4, reg_eac, reg_e94, reg_e9c, val32;
int result = 0;
/* Leave IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00);
/* Enable path A PA in TX IQK mode */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf117b);
/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00980);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x51000);
/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* TX IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
/* path-A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x68160c1f);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_e94 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_A);
reg_e9c = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_A);
if (!(reg_eac & BIT(28)) &&
((reg_e94 & 0x03ff0000) != 0x01420000) &&
((reg_e9c & 0x03ff0000) != 0x00420000)) {
result |= 0x01;
} else {
/* PA/PAD controlled by 0x0 */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x180);
goto out;
}
val32 = 0x80007c00 |
(reg_e94 & 0x03ff0000) | ((reg_e9c >> 16) & 0x03ff);
rtl8xxxu_write32(priv, REG_TX_IQK, val32);
/* Modify RX IQK mode table */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf7ffa);
/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00980);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x51000);
/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* IQK setting */
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
/* Path A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x18008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160c1f);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a891);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_ea4 = rtl8xxxu_read32(priv, REG_RX_POWER_BEFORE_IQK_A_2);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x180);
if (!(reg_eac & BIT(27)) &&
((reg_ea4 & 0x03ff0000) != 0x01320000) &&
((reg_eac & 0x03ff0000) != 0x00360000))
result |= 0x02;
else
dev_warn(&priv->udev->dev, "%s: Path A RX IQK failed!\n",
__func__);
out:
return result;
}
static int rtl8192eu_iqk_path_b(struct rtl8xxxu_priv *priv)
{
u32 reg_eac, reg_eb4, reg_ebc;
int result = 0;
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00180);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* Path B IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x821403e2);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_B, 0x68160000);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x00492911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(1);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_eb4 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_B);
reg_ebc = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_B);
if (!(reg_eac & BIT(31)) &&
((reg_eb4 & 0x03ff0000) != 0x01420000) &&
((reg_ebc & 0x03ff0000) != 0x00420000))
result |= 0x01;
else
dev_warn(&priv->udev->dev, "%s: Path B IQK failed!\n",
__func__);
return result;
}
static int rtl8192eu_rx_iqk_path_b(struct rtl8xxxu_priv *priv)
{
u32 reg_eac, reg_eb4, reg_ebc, reg_ec4, reg_ecc, val32;
int result = 0;
/* Leave IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
/* Enable path A PA in TX IQK mode */
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf117b);
/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00980);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x51000);
/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* TX IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
/* path-A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x82160c1f);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_B, 0x68160c1f);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_eb4 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_B);
reg_ebc = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_B);
if (!(reg_eac & BIT(31)) &&
((reg_eb4 & 0x03ff0000) != 0x01420000) &&
((reg_ebc & 0x03ff0000) != 0x00420000)) {
result |= 0x01;
} else {
/*
* PA/PAD controlled by 0x0
* Vendor driver restores RF_A here which I believe is a bug
*/
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x180);
goto out;
}
val32 = 0x80007c00 |
(reg_eb4 & 0x03ff0000) | ((reg_ebc >> 16) & 0x03ff);
rtl8xxxu_write32(priv, REG_TX_IQK, val32);
/* Modify RX IQK mode table */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf7ffa);
/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00980);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x51000);
/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* IQK setting */
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
/* Path A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x18008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160c1f);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a891);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_ec4 = rtl8xxxu_read32(priv, REG_RX_POWER_BEFORE_IQK_B_2);
reg_ecc = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_B_2);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x180);
if (!(reg_eac & BIT(30)) &&
((reg_ec4 & 0x03ff0000) != 0x01320000) &&
((reg_ecc & 0x03ff0000) != 0x00360000))
result |= 0x02;
else
dev_warn(&priv->udev->dev, "%s: Path B RX IQK failed!\n",
__func__);
out:
return result;
}
static void rtl8xxxu_phy_iqcalibrate(struct rtl8xxxu_priv *priv,
int result[][8], int t)
{
......@@ -5385,6 +5713,194 @@ static void rtl8723bu_phy_iqcalibrate(struct rtl8xxxu_priv *priv,
}
}
static void rtl8192eu_phy_iqcalibrate(struct rtl8xxxu_priv *priv,
int result[][8], int t)
{
struct device *dev = &priv->udev->dev;
u32 i, val32;
int path_a_ok, path_b_ok;
int retry = 2;
const u32 adda_regs[RTL8XXXU_ADDA_REGS] = {
REG_FPGA0_XCD_SWITCH_CTRL, REG_BLUETOOTH,
REG_RX_WAIT_CCA, REG_TX_CCK_RFON,
REG_TX_CCK_BBON, REG_TX_OFDM_RFON,
REG_TX_OFDM_BBON, REG_TX_TO_RX,
REG_TX_TO_TX, REG_RX_CCK,
REG_RX_OFDM, REG_RX_WAIT_RIFS,
REG_RX_TO_RX, REG_STANDBY,
REG_SLEEP, REG_PMPD_ANAEN
};
const u32 iqk_mac_regs[RTL8XXXU_MAC_REGS] = {
REG_TXPAUSE, REG_BEACON_CTRL,
REG_BEACON_CTRL_1, REG_GPIO_MUXCFG
};
const u32 iqk_bb_regs[RTL8XXXU_BB_REGS] = {
REG_OFDM0_TRX_PATH_ENABLE, REG_OFDM0_TR_MUX_PAR,
REG_FPGA0_XCD_RF_SW_CTRL, REG_CONFIG_ANT_A, REG_CONFIG_ANT_B,
REG_FPGA0_XAB_RF_SW_CTRL, REG_FPGA0_XA_RF_INT_OE,
REG_FPGA0_XB_RF_INT_OE, REG_CCK0_AFE_SETTING
};
u8 xa_agc = rtl8xxxu_read32(priv, REG_OFDM0_XA_AGC_CORE1) & 0xff;
u8 xb_agc = rtl8xxxu_read32(priv, REG_OFDM0_XB_AGC_CORE1) & 0xff;
/*
* Note: IQ calibration must be performed after loading
* PHY_REG.txt , and radio_a, radio_b.txt
*/
if (t == 0) {
/* Save ADDA parameters, turn Path A ADDA on */
rtl8xxxu_save_regs(priv, adda_regs, priv->adda_backup,
RTL8XXXU_ADDA_REGS);
rtl8xxxu_save_mac_regs(priv, iqk_mac_regs, priv->mac_backup);
rtl8xxxu_save_regs(priv, iqk_bb_regs,
priv->bb_backup, RTL8XXXU_BB_REGS);
}
rtl8xxxu_path_adda_on(priv, adda_regs, true);
/* MAC settings */
rtl8xxxu_mac_calibration(priv, iqk_mac_regs, priv->mac_backup);
val32 = rtl8xxxu_read32(priv, REG_CCK0_AFE_SETTING);
val32 |= 0x0f000000;
rtl8xxxu_write32(priv, REG_CCK0_AFE_SETTING, val32);
rtl8xxxu_write32(priv, REG_OFDM0_TRX_PATH_ENABLE, 0x03a05600);
rtl8xxxu_write32(priv, REG_OFDM0_TR_MUX_PAR, 0x000800e4);
rtl8xxxu_write32(priv, REG_FPGA0_XCD_RF_SW_CTRL, 0x22208200);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XAB_RF_SW_CTRL);
val32 |= (FPGA0_RF_PAPE | (FPGA0_RF_PAPE << FPGA0_RF_BD_CTRL_SHIFT));
rtl8xxxu_write32(priv, REG_FPGA0_XAB_RF_SW_CTRL, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XA_RF_INT_OE);
val32 |= BIT(10);
rtl8xxxu_write32(priv, REG_FPGA0_XA_RF_INT_OE, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XB_RF_INT_OE);
val32 |= BIT(10);
rtl8xxxu_write32(priv, REG_FPGA0_XB_RF_INT_OE, val32);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
for (i = 0; i < retry; i++) {
path_a_ok = rtl8192eu_iqk_path_a(priv);
if (path_a_ok == 0x01) {
val32 = rtl8xxxu_read32(priv,
REG_TX_POWER_BEFORE_IQK_A);
result[t][0] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv,
REG_TX_POWER_AFTER_IQK_A);
result[t][1] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_a_ok)
dev_dbg(dev, "%s: Path A TX IQK failed!\n", __func__);
for (i = 0; i < retry; i++) {
path_a_ok = rtl8192eu_rx_iqk_path_a(priv);
if (path_a_ok == 0x03) {
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_BEFORE_IQK_A_2);
result[t][2] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_AFTER_IQK_A_2);
result[t][3] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_a_ok)
dev_dbg(dev, "%s: Path A RX IQK failed!\n", __func__);
if (priv->rf_paths > 1) {
dev_warn(dev, "%s: Path B ongoing\n", __func__);
/* Path A into standby */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_AC, 0x10000);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
/* Turn Path B ADDA on */
rtl8xxxu_path_adda_on(priv, adda_regs, false);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
for (i = 0; i < retry; i++) {
path_b_ok = rtl8192eu_iqk_path_b(priv);
if (path_b_ok == 0x01) {
val32 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_B);
result[t][4] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_B);
result[t][5] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_b_ok)
dev_dbg(dev, "%s: Path B IQK failed!\n", __func__);
for (i = 0; i < retry; i++) {
path_b_ok = rtl8192eu_rx_iqk_path_b(priv);
if (path_a_ok == 0x03) {
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_BEFORE_IQK_B_2);
result[t][6] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_AFTER_IQK_B_2);
result[t][7] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_b_ok)
dev_dbg(dev, "%s: Path B RX IQK failed!\n", __func__);
}
/* Back to BB mode, load original value */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
if (t) {
/* Reload ADDA power saving parameters */
rtl8xxxu_restore_regs(priv, adda_regs, priv->adda_backup,
RTL8XXXU_ADDA_REGS);
/* Reload MAC parameters */
rtl8xxxu_restore_mac_regs(priv, iqk_mac_regs, priv->mac_backup);
/* Reload BB parameters */
rtl8xxxu_restore_regs(priv, iqk_bb_regs,
priv->bb_backup, RTL8XXXU_BB_REGS);
/* Restore RX initial gain */
val32 = rtl8xxxu_read32(priv, REG_OFDM0_XA_AGC_CORE1);
val32 &= 0xffffff00;
rtl8xxxu_write32(priv, REG_OFDM0_XA_AGC_CORE1, val32 | 0x50);
rtl8xxxu_write32(priv, REG_OFDM0_XA_AGC_CORE1, val32 | xa_agc);
if (priv->rf_paths > 1) {
val32 = rtl8xxxu_read32(priv, REG_OFDM0_XB_AGC_CORE1);
val32 &= 0xffffff00;
rtl8xxxu_write32(priv, REG_OFDM0_XB_AGC_CORE1,
val32 | 0x50);
rtl8xxxu_write32(priv, REG_OFDM0_XB_AGC_CORE1,
val32 | xb_agc);
}
/* Load 0xe30 IQC default value */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x01008c00);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x01008c00);
}
}
static void rtl8xxxu_prepare_calibrate(struct rtl8xxxu_priv *priv, u8 start)
{
struct h2c_cmd h2c;
......@@ -5630,6 +6146,96 @@ static void rtl8723bu_phy_iq_calibrate(struct rtl8xxxu_priv *priv)
rtl8xxxu_prepare_calibrate(priv, 0);
}
static void rtl8192eu_phy_iq_calibrate(struct rtl8xxxu_priv *priv)
{
struct device *dev = &priv->udev->dev;
int result[4][8]; /* last is final result */
int i, candidate;
bool path_a_ok, path_b_ok;
u32 reg_e94, reg_e9c, reg_ea4, reg_eac;
u32 reg_eb4, reg_ebc, reg_ec4, reg_ecc;
bool simu;
memset(result, 0, sizeof(result));
candidate = -1;
path_a_ok = false;
path_b_ok = false;
for (i = 0; i < 3; i++) {
rtl8192eu_phy_iqcalibrate(priv, result, i);
if (i == 1) {
simu = rtl8723bu_simularity_compare(priv, result, 0, 1);
if (simu) {
candidate = 0;
break;
}
}
if (i == 2) {
simu = rtl8723bu_simularity_compare(priv, result, 0, 2);
if (simu) {
candidate = 0;
break;
}
simu = rtl8723bu_simularity_compare(priv, result, 1, 2);
if (simu)
candidate = 1;
else
candidate = 3;
}
}
for (i = 0; i < 4; i++) {
reg_e94 = result[i][0];
reg_e9c = result[i][1];
reg_ea4 = result[i][2];
reg_eac = result[i][3];
reg_eb4 = result[i][4];
reg_ebc = result[i][5];
reg_ec4 = result[i][6];
reg_ecc = result[i][7];
}
if (candidate >= 0) {
reg_e94 = result[candidate][0];
priv->rege94 = reg_e94;
reg_e9c = result[candidate][1];
priv->rege9c = reg_e9c;
reg_ea4 = result[candidate][2];
reg_eac = result[candidate][3];
reg_eb4 = result[candidate][4];
priv->regeb4 = reg_eb4;
reg_ebc = result[candidate][5];
priv->regebc = reg_ebc;
reg_ec4 = result[candidate][6];
reg_ecc = result[candidate][7];
dev_dbg(dev, "%s: candidate is %x\n", __func__, candidate);
dev_dbg(dev,
"%s: e94 =%x e9c=%x ea4=%x eac=%x eb4=%x ebc=%x ec4=%x "
"ecc=%x\n ", __func__, reg_e94, reg_e9c,
reg_ea4, reg_eac, reg_eb4, reg_ebc, reg_ec4, reg_ecc);
path_a_ok = true;
path_b_ok = true;
} else {
reg_e94 = reg_eb4 = priv->rege94 = priv->regeb4 = 0x100;
reg_e9c = reg_ebc = priv->rege9c = priv->regebc = 0x0;
}
if (reg_e94 && candidate >= 0)
rtl8xxxu_fill_iqk_matrix_a(priv, path_a_ok, result,
candidate, (reg_ea4 == 0));
if (priv->rf_paths > 1)
rtl8xxxu_fill_iqk_matrix_b(priv, path_b_ok, result,
candidate, (reg_ec4 == 0));
rtl8xxxu_save_regs(priv, rtl8723au_iqk_phy_iq_bb_reg,
priv->bb_recovery_backup, RTL8XXXU_BB_REGS);
}
static void rtl8723a_phy_lc_calibrate(struct rtl8xxxu_priv *priv)
{
u32 val32;
......@@ -9080,7 +9686,7 @@ static struct rtl8xxxu_fileops rtl8192eu_fops = {
.power_off = rtl8xxxu_power_off,
.reset_8051 = rtl8xxxu_reset_8051,
.llt_init = rtl8xxxu_auto_llt_table,
.phy_iq_calibrate = rtl8723bu_phy_iq_calibrate,
.phy_iq_calibrate = rtl8192eu_phy_iq_calibrate,
.config_channel = rtl8723bu_config_channel,
.parse_rx_desc = rtl8723bu_parse_rx_desc,
.enable_rf = rtl8723b_enable_rf,
......
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
View file @ f991f4e9
......@@ -1130,6 +1130,7 @@
#define RF6052_REG_T_METER_8723B 0x42
#define RF6052_REG_UNKNOWN_43 0x43
#define RF6052_REG_UNKNOWN_55 0x55
#define RF6052_REG_UNKNOWN_56 0x56
#define RF6052_REG_S0S1 0xb0
#define RF6052_REG_UNKNOWN_DF 0xdf
#define RF6052_REG_UNKNOWN_ED 0xed
......
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