From: Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx>
commit 61b559dea40e ("ath9k: add extra GPIO led support")
added ath9k to support access SOC's GPIOs, but implemented
in a separated API: ath9k_hw_request_gpio().
So this patch make the APIs more common, to support both
of WMAC and SOC GPIOs. The new APIs as below,
void ath9k_hw_gpio_request_in();
void ath9k_hw_gpio_request_out();
void ath9k_hw_gpio_free();
NOTE, the BSP of the SOC chips(AR9340, AR9531, AR9550, AR9561)
should set the corresponding MUX registers correctly.
Signed-off-by: Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 4 +-
drivers/net/wireless/ath/ath9k/ar9003_mci.c | 39 +++--
drivers/net/wireless/ath/ath9k/btcoex.c | 27 ++--
drivers/net/wireless/ath/ath9k/gpio.c | 6 +-
drivers/net/wireless/ath/ath9k/htc_drv_gpio.c | 6 +-
drivers/net/wireless/ath/ath9k/hw.c | 192 +++++++++++++++----------
drivers/net/wireless/ath/ath9k/hw.h | 10 +-
drivers/net/wireless/ath/ath9k/main.c | 6 +-
8 files changed, 170 insertions(+), 120 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 8b4561e..e434869 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3590,8 +3590,8 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
else
gpio = AR9300_EXT_LNA_CTL_GPIO_AR9485;
- ath9k_hw_cfg_output(ah, gpio,
- AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED);
+ ath9k_hw_gpio_request_out(ah, gpio, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED);
}
value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index af5ee41..0fe9c83 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -427,21 +427,34 @@ static void ar9003_mci_observation_set_up(struct ath_hw *ah)
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
if (mci->config & ATH_MCI_CONFIG_MCI_OBS_MCI) {
- ath9k_hw_cfg_output(ah, 3, AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_DATA);
- ath9k_hw_cfg_output(ah, 2, AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_CLK);
- ath9k_hw_cfg_output(ah, 1, AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
- ath9k_hw_cfg_output(ah, 0, AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
+ ath9k_hw_gpio_request_out(ah, 3, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_DATA);
+ ath9k_hw_gpio_request_out(ah, 2, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_WLAN_CLK);
+ ath9k_hw_gpio_request_out(ah, 1, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
+ ath9k_hw_gpio_request_out(ah, 0, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
} else if (mci->config & ATH_MCI_CONFIG_MCI_OBS_TXRX) {
- ath9k_hw_cfg_output(ah, 3, AR_GPIO_OUTPUT_MUX_AS_WL_IN_TX);
- ath9k_hw_cfg_output(ah, 2, AR_GPIO_OUTPUT_MUX_AS_WL_IN_RX);
- ath9k_hw_cfg_output(ah, 1, AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
- ath9k_hw_cfg_output(ah, 0, AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
- ath9k_hw_cfg_output(ah, 5, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_gpio_request_out(ah, 3, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_WL_IN_TX);
+ ath9k_hw_gpio_request_out(ah, 2, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_WL_IN_RX);
+ ath9k_hw_gpio_request_out(ah, 1, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
+ ath9k_hw_gpio_request_out(ah, 0, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
+ ath9k_hw_gpio_request_out(ah, 5, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
} else if (mci->config & ATH_MCI_CONFIG_MCI_OBS_BT) {
- ath9k_hw_cfg_output(ah, 3, AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
- ath9k_hw_cfg_output(ah, 2, AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
- ath9k_hw_cfg_output(ah, 1, AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
- ath9k_hw_cfg_output(ah, 0, AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
+ ath9k_hw_gpio_request_out(ah, 3, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_BT_IN_TX);
+ ath9k_hw_gpio_request_out(ah, 2, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_BT_IN_RX);
+ ath9k_hw_gpio_request_out(ah, 1, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_BT_DATA);
+ ath9k_hw_gpio_request_out(ah, 0, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_MCI_BT_CLK);
} else
return;
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index 5a084d9..7719cb1 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -142,7 +142,8 @@ void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah)
btcoex_hw->btactive_gpio);
/* Configure the desired gpio port for input */
- ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btactive_gpio);
+ ath9k_hw_gpio_request_in(ah, btcoex_hw->btactive_gpio,
+ "ath9k-btactive");
}
EXPORT_SYMBOL(ath9k_hw_btcoex_init_2wire);
@@ -166,9 +167,10 @@ void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah)
btcoex_hw->btpriority_gpio);
/* Configure the desired GPIO ports for input */
-
- ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btactive_gpio);
- ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btpriority_gpio);
+ ath9k_hw_gpio_request_in(ah, btcoex_hw->btactive_gpio,
+ "ath9k-btactive");
+ ath9k_hw_gpio_request_in(ah, btcoex_hw->btpriority_gpio,
+ "ath9k-btpriority");
}
EXPORT_SYMBOL(ath9k_hw_btcoex_init_3wire);
@@ -201,8 +203,9 @@ static void ath9k_hw_btcoex_enable_2wire(struct ath_hw *ah)
struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
/* Configure the desired GPIO port for TX_FRAME output */
- ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio,
- AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
+ ath9k_hw_gpio_request_out(ah, btcoex_hw->wlanactive_gpio,
+ "ath9k-wlanactive",
+ AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
}
/*
@@ -271,7 +274,6 @@ static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah)
REG_WRITE(ah, AR_BT_COEX_MODE, btcoex->bt_coex_mode);
REG_WRITE(ah, AR_BT_COEX_MODE2, btcoex->bt_coex_mode2);
-
if (AR_SREV_9300_20_OR_LATER(ah)) {
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, btcoex->wlan_weight[0]);
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, btcoex->wlan_weight[1]);
@@ -281,8 +283,6 @@ static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah)
} else
REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex->bt_coex_weights);
-
-
if (AR_SREV_9271(ah)) {
val = REG_READ(ah, 0x50040);
val &= 0xFFFFFEFF;
@@ -292,8 +292,9 @@ static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah)
REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
- ath9k_hw_cfg_output(ah, btcoex->wlanactive_gpio,
- AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL);
+ ath9k_hw_gpio_request_out(ah, btcoex->wlanactive_gpio,
+ "ath9k-wlanactive",
+ AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL);
}
static void ath9k_hw_btcoex_enable_mci(struct ath_hw *ah)
@@ -364,8 +365,8 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
if (!AR_SREV_9300_20_OR_LATER(ah))
ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0);
- ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio,
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_gpio_request_out(ah, btcoex_hw->wlanactive_gpio,
+ NULL, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
if (btcoex_hw->scheme == ATH_BTCOEX_CFG_3WIRE) {
REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE);
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 2847067..b41dfb7 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -74,7 +74,8 @@ void ath_fill_led_pin(struct ath_softc *sc)
if (ah->led_pin >= 0) {
if (!((1 << ah->led_pin) & AR_GPIO_OE_OUT_MASK))
- ath9k_hw_request_gpio(ah, ah->led_pin, "ath9k-led");
+ ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led",
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
return;
}
@@ -90,7 +91,8 @@ void ath_fill_led_pin(struct ath_softc *sc)
ah->led_pin = ATH_LED_PIN_DEF;
/* Configure gpio 1 for output */
- ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led",
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
/* LED off, active low */
ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
index 2aabcbd..d9b640a 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
@@ -259,11 +259,11 @@ void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
void ath9k_configure_leds(struct ath9k_htc_priv *priv)
{
/* Configure gpio 1 for output */
- ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_gpio_request_out(priv->ah, priv->ah->led_pin,
+ "ath9k-led",
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
/* LED off, active low */
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
-
}
void ath9k_init_leds(struct ath9k_htc_priv *priv)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 0e80b3f..b99e197 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1572,7 +1572,8 @@ static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
if (!(gpio_mask & 1))
continue;
- ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_gpio_request_out(ah, i, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
}
}
@@ -1948,7 +1949,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
ath9k_hw_init_qos(ah);
if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
- ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
+ ath9k_hw_gpio_request_in(ah, ah->rfkill_gpio, "ath9k-rfkill");
ath9k_hw_init_global_settings(ah);
@@ -2644,8 +2645,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
/* GPIO / RFKILL / Antennae */
/****************************/
-static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
- u32 gpio, u32 type)
+static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah, u32 gpio, u32 type)
{
int addr;
u32 gpio_shift, tmp;
@@ -2659,8 +2659,8 @@ static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
gpio_shift = (gpio % 6) * 5;
- if (AR_SREV_9280_20_OR_LATER(ah)
- || (addr != AR_GPIO_OUTPUT_MUX1)) {
+ if (AR_SREV_9280_20_OR_LATER(ah) ||
+ (addr != AR_GPIO_OUTPUT_MUX1)) {
REG_RMW(ah, addr, (type << gpio_shift),
(0x1f << gpio_shift));
} else {
@@ -2672,106 +2672,140 @@ static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
}
}
-void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
+/* BSP should set the corresponding MUX register correctly.
+ */
+static void ath9k_hw_gpio_cfg_soc(struct ath_hw *ah, u32 gpio, bool out,
+ const char *label)
{
- u32 gpio_shift;
+ if (ah->caps.gpio_requested & BIT(gpio))
+ return;
- BUG_ON(gpio >= ah->caps.num_gpio_pins);
+ /* may be requested by BSP, free anyway */
+ gpio_free(gpio);
- if (AR_DEVID_7010(ah)) {
- gpio_shift = gpio;
- REG_RMW(ah, AR7010_GPIO_OE,
- (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
- (AR7010_GPIO_OE_MASK << gpio_shift));
+ if (gpio_request_one(gpio, out ? GPIOF_OUT_INIT_LOW : GPIOF_IN, label))
return;
- }
- gpio_shift = gpio << 1;
- REG_RMW(ah,
- AR_GPIO_OE_OUT,
- (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
- (AR_GPIO_OE_OUT_DRV << gpio_shift));
+ ah->caps.gpio_requested |= BIT(gpio);
}
-EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
-u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
+static void ath9k_hw_gpio_cfg_wmac(struct ath_hw *ah, u32 gpio, bool out,
+ u32 ah_signal_type)
{
-#define MS_REG_READ(x, y) \
- (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
-
- if (gpio >= ah->caps.num_gpio_pins)
- return 0xffffffff;
+ u32 gpio_set, gpio_shift = gpio;
if (AR_DEVID_7010(ah)) {
- u32 val;
- val = REG_READ(ah, AR7010_GPIO_IN);
- return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
- } else if (AR_SREV_9300_20_OR_LATER(ah))
- return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
- AR_GPIO_BIT(gpio)) != 0;
- else if (AR_SREV_9271(ah))
- return MS_REG_READ(AR9271, gpio) != 0;
- else if (AR_SREV_9287_11_OR_LATER(ah))
- return MS_REG_READ(AR9287, gpio) != 0;
- else if (AR_SREV_9285_12_OR_LATER(ah))
- return MS_REG_READ(AR9285, gpio) != 0;
- else if (AR_SREV_9280_20_OR_LATER(ah))
- return MS_REG_READ(AR928X, gpio) != 0;
+ gpio_set = out ?
+ AR7010_GPIO_OE_AS_OUTPUT : AR7010_GPIO_OE_AS_INPUT;
+ REG_RMW(ah, AR7010_GPIO_OE, gpio_set << gpio_shift,
+ AR7010_GPIO_OE_MASK << gpio_shift);
+ } else if (AR_SREV_SOC(ah)) {
+ gpio_set = out ? 1 : 0;
+ REG_RMW(ah, AR_GPIO_OE_OUT, gpio_set << gpio_shift,
+ gpio_set << gpio_shift);
+ } else {
+ gpio_shift = gpio << 1;
+ gpio_set = out ?
+ AR_GPIO_OE_OUT_DRV_ALL : AR_GPIO_OE_OUT_DRV_NO;
+ REG_RMW(ah, AR_GPIO_OE_OUT, gpio_set << gpio_shift,
+ AR_GPIO_OE_OUT_DRV << gpio_shift);
+
+ if (out)
+ ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
+ }
+}
+
+static void ath9k_hw_gpio_request(struct ath_hw *ah, u32 gpio, bool out,
+ const char *label, u32 ah_signal_type)
+{
+ WARN_ON(gpio >= ah->caps.num_gpio_pins);
+
+ if (BIT(gpio) & ah->caps.gpio_mask)
+ ath9k_hw_gpio_cfg_wmac(ah, gpio, out, ah_signal_type);
+ else if (AR_SREV_SOC(ah))
+ ath9k_hw_gpio_cfg_soc(ah, gpio, out, label);
else
- return MS_REG_READ(AR, gpio) != 0;
+ WARN_ON(1);
}
-EXPORT_SYMBOL(ath9k_hw_gpio_get);
-void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
- u32 ah_signal_type)
+void ath9k_hw_gpio_request_in(struct ath_hw *ah, u32 gpio, const char *label)
{
- u32 gpio_shift;
+ ath9k_hw_gpio_request(ah, gpio, false, label, 0);
+}
+EXPORT_SYMBOL(ath9k_hw_gpio_request_in);
- if (AR_DEVID_7010(ah)) {
- gpio_shift = gpio;
- REG_RMW(ah, AR7010_GPIO_OE,
- (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
- (AR7010_GPIO_OE_MASK << gpio_shift));
+void ath9k_hw_gpio_request_out(struct ath_hw *ah, u32 gpio, const char *label,
+ u32 ah_signal_type)
+{
+ ath9k_hw_gpio_request(ah, gpio, true, label, ah_signal_type);
+}
+EXPORT_SYMBOL(ath9k_hw_gpio_request_out);
+
+void ath9k_hw_gpio_free(struct ath_hw *ah, u32 gpio)
+{
+ if (!AR_SREV_SOC(ah))
return;
- }
- ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
- gpio_shift = 2 * gpio;
- REG_RMW(ah,
- AR_GPIO_OE_OUT,
- (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
- (AR_GPIO_OE_OUT_DRV << gpio_shift));
+ WARN_ON(gpio >= ah->caps.num_gpio_pins);
+
+ if (ah->caps.gpio_requested & BIT(gpio)) {
+ gpio_free(gpio);
+ ah->caps.gpio_requested &= ~BIT(gpio);
+ }
}
-EXPORT_SYMBOL(ath9k_hw_cfg_output);
+EXPORT_SYMBOL(ath9k_hw_gpio_free);
-void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
+u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
{
- if (AR_DEVID_7010(ah)) {
- val = val ? 0 : 1;
- REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
- AR_GPIO_BIT(gpio));
- return;
+#define MS_REG_READ(x, y) \
+ (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & BIT(y))
+
+ WARN_ON(gpio >= ah->caps.num_gpio_pins);
+
+ if (BIT(gpio) & ah->caps.gpio_mask) {
+ if (AR_SREV_9271(ah))
+ return MS_REG_READ(AR9271, gpio);
+ else if (AR_SREV_9287(ah))
+ return MS_REG_READ(AR9287, gpio);
+ else if (AR_SREV_9285(ah))
+ return MS_REG_READ(AR9285, gpio);
+ else if (AR_SREV_9280(ah))
+ return MS_REG_READ(AR928X, gpio);
+ else if (AR_DEVID_7010(ah))
+ return REG_READ(ah, AR7010_GPIO_IN) & BIT(gpio);
+ else if (AR_SREV_9300_20_OR_LATER(ah))
+ return REG_READ(ah, AR_GPIO_IN) & BIT(gpio);
+ else
+ return MS_REG_READ(AR, gpio);
+ } else if (BIT(gpio) & ah->caps.gpio_requested) {
+ return gpio_get_value(gpio) & BIT(gpio);
+ } else {
+ WARN_ON(1);
}
+}
+EXPORT_SYMBOL(ath9k_hw_gpio_get);
- if (AR_SREV_9271(ah))
- val = ~val;
+void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
+{
+ WARN_ON(gpio >= ah->caps.num_gpio_pins);
- if ((1 << gpio) & AR_GPIO_OE_OUT_MASK)
- REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
- AR_GPIO_BIT(gpio));
+ if (AR_DEVID_7010(ah) || AR_SREV_9271(ah))
+ val = !val;
else
- gpio_set_value(gpio, val & 1);
-}
-EXPORT_SYMBOL(ath9k_hw_set_gpio);
+ val = !!val;
-void ath9k_hw_request_gpio(struct ath_hw *ah, u32 gpio, const char *label)
-{
- if (gpio >= ah->caps.num_gpio_pins)
- return;
+ if (BIT(gpio) & ah->caps.gpio_mask) {
+ u32 out_addr = AR_DEVID_7010(ah) ?
+ AR7010_GPIO_OUT : AR_GPIO_IN_OUT;
- gpio_request_one(gpio, GPIOF_DIR_OUT | GPIOF_INIT_LOW, label);
+ REG_RMW(ah, out_addr, val << gpio, BIT(gpio));
+ } else if (BIT(gpio) & ah->caps.gpio_requested) {
+ gpio_set_value(gpio, val);
+ } else {
+ WARN_ON(1);
+ }
}
-EXPORT_SYMBOL(ath9k_hw_request_gpio);
+EXPORT_SYMBOL(ath9k_hw_set_gpio);
void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
{
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index c0740d6..9cbca12 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -160,7 +160,6 @@
#define AR_GPIO_OUTPUT_MUX_AS_RUCKUS_DATA 0x1e
#define AR_GPIOD_MASK 0x00001FFF
-#define AR_GPIO_BIT(_gpio) (1 << (_gpio))
#define BASE_ACTIVATE_DELAY 100
#define RTC_PLL_SETTLE_DELAY (AR_SREV_9340(ah) ? 1000 : 100)
@@ -302,6 +301,7 @@ struct ath9k_hw_capabilities {
u8 max_rxchains;
u8 num_gpio_pins;
u32 gpio_mask;
+ u32 gpio_requested;
u8 rx_hp_qdepth;
u8 rx_lp_qdepth;
u8 rx_status_len;
@@ -1020,12 +1020,12 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah);
u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan);
/* GPIO / RFKILL / Antennae */
-void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio);
+void ath9k_hw_gpio_request_in(struct ath_hw *ah, u32 gpio, const char *label);
+void ath9k_hw_gpio_request_out(struct ath_hw *ah, u32 gpio, const char *label,
+ u32 ah_signal_type);
+void ath9k_hw_gpio_free(struct ath_hw *ah, u32 gpio);
u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio);
-void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
- u32 ah_signal_type);
void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val);
-void ath9k_hw_request_gpio(struct ath_hw *ah, u32 gpio, const char *label);
void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna);
/* General Operation */
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c1b33fd..95d0a53 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -719,10 +719,10 @@ static int ath9k_start(struct ieee80211_hw *hw)
ah->reset_power_on = false;
if (ah->led_pin >= 0) {
- ath9k_hw_cfg_output(ah, ah->led_pin,
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
ath9k_hw_set_gpio(ah, ah->led_pin,
(ah->config.led_active_high) ? 1 : 0);
+ ath9k_hw_gpio_request_out(ah, ah->led_pin, NULL,
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
}
/*
@@ -870,7 +870,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
if (ah->led_pin >= 0) {
ath9k_hw_set_gpio(ah, ah->led_pin,
(ah->config.led_active_high) ? 0 : 1);
- ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
+ ath9k_hw_gpio_request_in(ah, ah->led_pin, NULL);
}
ath_prepare_reset(sc);
--
1.9.1
--
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