diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtl8xxxu/8192c.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/8192c.c | 80 |
1 files changed, 79 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/8192c.c b/drivers/net/wireless/realtek/rtl8xxxu/8192c.c index 73034e7e41d1..444872131c66 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/8192c.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/8192c.c @@ -593,6 +593,84 @@ static int rtl8192cu_power_on(struct rtl8xxxu_priv *priv) return 0; } +static void rtl8192cu_power_off(struct rtl8xxxu_priv *priv) +{ + u32 val32; + u16 val16; + u8 val8; + int i; + + /* + * Workaround for 8188RU LNA power leakage problem. + */ + if (priv->rtl_chip == RTL8188R) { + val32 = rtl8xxxu_read32(priv, REG_FPGA0_XCD_RF_PARM); + val32 |= BIT(1); + rtl8xxxu_write32(priv, REG_FPGA0_XCD_RF_PARM, val32); + } + + /* _DisableRFAFEAndResetBB */ + rtl8xxxu_write8(priv, REG_TXPAUSE, 0xff); + rtl8xxxu_write_rfreg_mask(priv, RF_A, RF6052_REG_AC, 0xff, 0); + + rtl8xxxu_write8_set(priv, REG_APSD_CTRL, APSD_CTRL_OFF); + rtl8xxxu_write32_set(priv, REG_FPGA0_XCD_RF_PARM, FPGA0_RF_PARM_CLK_GATE); + + rtl8xxxu_write8(priv, REG_SYS_FUNC, + SYS_FUNC_USBA | SYS_FUNC_USBD | SYS_FUNC_BB_GLB_RSTN); + rtl8xxxu_write8(priv, REG_SYS_FUNC, SYS_FUNC_USBA | SYS_FUNC_USBD); + + /* _ResetDigitalProcedure1 */ + if (rtl8xxxu_read8(priv, REG_MCU_FW_DL) & MCU_FW_DL_READY) { + rtl8xxxu_write8(priv, REG_MCU_FW_DL, 0x00); + + rtl8xxxu_write8(priv, REG_FWIMR, 0x20); + + rtl8xxxu_write8(priv, REG_HMTFR + 3, 0x20); + + for (i = 0; i < 100; i++) { + val16 = rtl8xxxu_read16(priv, REG_SYS_FUNC); + if (!(val16 & SYS_FUNC_CPU_ENABLE)) + break; + + fsleep(50); + } + + if (i == 100) { + rtl8xxxu_write8(priv, REG_SYS_FUNC + 1, + (SYS_FUNC_HWPDN | SYS_FUNC_ELDR) >> 8); + msleep(10); + } + } + + val8 = (SYS_FUNC_HWPDN | SYS_FUNC_ELDR | SYS_FUNC_CPU_ENABLE) >> 8; + rtl8xxxu_write8(priv, REG_SYS_FUNC + 1, val8); + + /* _DisableGPIO */ + rtl8xxxu_write16(priv, REG_GPIO_PIN_CTRL + 2, 0); + val32 = rtl8xxxu_read32(priv, REG_GPIO_PIN_CTRL) & 0xffff00ff; + val32 |= (val32 & 0xff) << 8; + val32 |= 0x00ff0000; + rtl8xxxu_write32(priv, REG_GPIO_PIN_CTRL, val32); + + rtl8xxxu_write8(priv, REG_GPIO_MUXCFG + 3, 0); + val16 = rtl8xxxu_read16(priv, REG_GPIO_MUXCFG + 2) & 0xff0f; + val16 |= (val16 & 0xf) << 4; + val16 |= 0x0780; + rtl8xxxu_write16(priv, REG_GPIO_MUXCFG + 2, val16); + + /* _DisableAnalog */ + val8 = 0x23; + if (priv->vendor_umc && priv->chip_cut == 1) + val8 |= BIT(3); + rtl8xxxu_write8(priv, REG_SPS0_CTRL, val8); + + val16 = APS_FSMCO_HOST | APS_FSMCO_HW_SUSPEND | APS_FSMCO_PFM_ALDN; + rtl8xxxu_write16(priv, REG_APS_FSMCO, val16); + + rtl8xxxu_write8(priv, REG_RSV_CTRL, 0x0e); +} + static int rtl8192cu_led_brightness_set(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -618,7 +696,7 @@ struct rtl8xxxu_fileops rtl8192cu_fops = { .parse_efuse = rtl8192cu_parse_efuse, .load_firmware = rtl8192cu_load_firmware, .power_on = rtl8192cu_power_on, - .power_off = rtl8xxxu_power_off, + .power_off = rtl8192cu_power_off, .read_efuse = rtl8xxxu_read_efuse, .reset_8051 = rtl8xxxu_reset_8051, .llt_init = rtl8xxxu_init_llt_table, |