From fe37d5f644e5fb7179ff6464482eca9a4ebf555c Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Mon, 29 Feb 2016 17:05:47 -0500 Subject: [PATCH] rtl8xxxu: Implement device specific power_off function Implment 8723bu specific device power down, and make power_off() a fileops function. Signed-off-by: Jes Sorensen Signed-off-by: Kalle Valo --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.c | 98 ++++++++++++++++++- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 + .../wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h | 2 + 3 files changed, 99 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c index 50d2c5c8c153..ef60e83ababd 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c @@ -5240,6 +5240,64 @@ exit: return ret; } +static int rtl8723bu_active_to_emu(struct rtl8xxxu_priv *priv) +{ + u8 val8; + u16 val16; + u32 val32; + int count, ret; + + /* Turn off RF */ + rtl8xxxu_write8(priv, REG_RF_CTRL, 0); + + /* Enable rising edge triggering interrupt */ + val16 = rtl8xxxu_read16(priv, REG_GPIO_INTM); + val16 &= ~GPIO_INTM_EDGE_TRIG_IRQ; + rtl8xxxu_write16(priv, REG_GPIO_INTM, val16); + + /* Release WLON reset 0x04[16]= 1*/ + val32 = rtl8xxxu_read32(priv, REG_GPIO_INTM); + val32 |= APS_FSMCO_WLON_RESET; + rtl8xxxu_write32(priv, REG_GPIO_INTM, val32); + + /* 0x0005[1] = 1 turn off MAC by HW state machine*/ + val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1); + val8 |= BIT(1); + rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8); + + for (count = RTL8XXXU_MAX_REG_POLL; count; count--) { + val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1); + if ((val8 & BIT(1)) == 0) + break; + udelay(10); + } + + if (!count) { + dev_warn(&priv->udev->dev, "%s: Disabling MAC timed out\n", + __func__); + ret = -EBUSY; + goto exit; + } + + /* Enable BT control XTAL setting */ + val8 = rtl8xxxu_read8(priv, REG_AFE_MISC); + val8 &= ~AFE_MISC_WL_XTAL_CTRL; + rtl8xxxu_write8(priv, REG_AFE_MISC, val8); + + /* 0x0000[5] = 1 analog Ips to digital, 1:isolation */ + val8 = rtl8xxxu_read8(priv, REG_SYS_ISO_CTRL); + val8 |= SYS_ISO_ANALOG_IPS; + rtl8xxxu_write8(priv, REG_SYS_ISO_CTRL, val8); + + /* 0x0020[0] = 0 disable LDOA12 MACRO block*/ + val8 = rtl8xxxu_read8(priv, REG_LDOA15_CTRL); + val8 &= ~LDOA15_ENABLE; + rtl8xxxu_write8(priv, REG_LDOA15_CTRL, val8); + +exit: + return ret; +} + static int rtl8xxxu_active_to_lps(struct rtl8xxxu_priv *priv) { u8 val8; @@ -5932,6 +5990,38 @@ static void rtl8xxxu_power_off(struct rtl8xxxu_priv *priv) rtl8xxxu_write8(priv, REG_RSV_CTRL, 0x0e); } +static void rtl8723bu_power_off(struct rtl8xxxu_priv *priv) +{ + u8 val8; + u16 val16; + + /* + * Disable TX report timer + */ + val8 = rtl8xxxu_read8(priv, REG_TX_REPORT_CTRL); + val8 &= ~TX_REPORT_CTRL_TIMER_ENABLE; + rtl8xxxu_write8(priv, REG_TX_REPORT_CTRL, val8); + + rtl8xxxu_write16(priv, REG_CR, 0x0000); + + rtl8xxxu_active_to_lps(priv); + + /* Reset Firmware if running in RAM */ + if (rtl8xxxu_read8(priv, REG_MCU_FW_DL) & MCU_FW_RAM_SEL) + rtl8xxxu_firmware_self_reset(priv); + + /* Reset MCU */ + val16 = rtl8xxxu_read16(priv, REG_SYS_FUNC); + val16 &= ~SYS_FUNC_CPU_ENABLE; + rtl8xxxu_write16(priv, REG_SYS_FUNC, val16); + + /* Reset MCU ready status */ + rtl8xxxu_write8(priv, REG_MCU_FW_DL, 0x00); + + rtl8723bu_active_to_emu(priv); + rtl8xxxu_emu_to_disabled(priv); +} + #ifdef NEED_PS_TDMA static void rtl8723bu_set_ps_tdma(struct rtl8xxxu_priv *priv, u8 arg1, u8 arg2, u8 arg3, u8 arg4, u8 arg5) @@ -6152,7 +6242,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw) */ if (priv->rtlchip == 0x8723bu) { val8 = rtl8xxxu_read8(priv, REG_TX_REPORT_CTRL); - val8 |= BIT(1); + val8 |= TX_REPORT_CTRL_TIMER_ENABLE; rtl8xxxu_write8(priv, REG_TX_REPORT_CTRL, val8); /* Set MAX RPT MACID */ rtl8xxxu_write8(priv, REG_TX_REPORT_CTRL + 1, 0x02); @@ -6545,7 +6635,7 @@ static void rtl8xxxu_disable_device(struct ieee80211_hw *hw) { struct rtl8xxxu_priv *priv = hw->priv; - rtl8xxxu_power_off(priv); + priv->fops->power_off(priv); } static void rtl8xxxu_cam_write(struct rtl8xxxu_priv *priv, @@ -8277,6 +8367,7 @@ static struct rtl8xxxu_fileops rtl8723au_fops = { .parse_efuse = rtl8723au_parse_efuse, .load_firmware = rtl8723au_load_firmware, .power_on = rtl8723au_power_on, + .power_off = rtl8xxxu_power_off, .llt_init = rtl8xxxu_init_llt_table, .phy_iq_calibrate = rtl8723au_phy_iq_calibrate, .config_channel = rtl8723au_config_channel, @@ -8300,6 +8391,7 @@ static struct rtl8xxxu_fileops rtl8723bu_fops = { .parse_efuse = rtl8723bu_parse_efuse, .load_firmware = rtl8723bu_load_firmware, .power_on = rtl8723bu_power_on, + .power_off = rtl8723bu_power_off, .llt_init = rtl8xxxu_auto_llt_table, .phy_init_antenna_selection = rtl8723bu_phy_init_antenna_selection, .phy_iq_calibrate = rtl8723bu_phy_iq_calibrate, @@ -8329,6 +8421,7 @@ static 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, .llt_init = rtl8xxxu_init_llt_table, .phy_iq_calibrate = rtl8723au_phy_iq_calibrate, .config_channel = rtl8723au_config_channel, @@ -8354,6 +8447,7 @@ static struct rtl8xxxu_fileops rtl8192eu_fops = { .parse_efuse = rtl8192eu_parse_efuse, .load_firmware = rtl8192eu_load_firmware, .power_on = rtl8192eu_power_on, + .power_off = rtl8xxxu_power_off, .llt_init = rtl8xxxu_auto_llt_table, .phy_iq_calibrate = rtl8723bu_phy_iq_calibrate, .config_channel = rtl8723bu_config_channel, diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 9c535e8dbecf..bfa9d6c5d502 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1257,6 +1257,7 @@ struct rtl8xxxu_fileops { int (*parse_efuse) (struct rtl8xxxu_priv *priv); int (*load_firmware) (struct rtl8xxxu_priv *priv); int (*power_on) (struct rtl8xxxu_priv *priv); + void (*power_off) (struct rtl8xxxu_priv *priv); int (*llt_init) (struct rtl8xxxu_priv *priv, u8 last_tx_page); void (*phy_init_antenna_selection) (struct rtl8xxxu_priv *priv); void (*phy_iq_calibrate) (struct rtl8xxxu_priv *priv); diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h index e0b9ea3811c0..a8d5c9f98051 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h @@ -512,6 +512,8 @@ #define REG_PKT_LOSE_RPT 0x04e1 #define REG_PTCL_ERR_STATUS 0x04e2 #define REG_TX_REPORT_CTRL 0x04ec +#define TX_REPORT_CTRL_TIMER_ENABLE BIT(1) + #define REG_TX_REPORT_TIME 0x04f0 #define REG_DUMMY 0x04fc -- 2.20.1