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ath9k: Add LED support 

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2008-08-25 20:47:29 +05:30 committed by John W. Linville
parent 36aedc903e
commit c83be6885e
5 changed files with 176 additions and 46 deletions
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16
drivers/net/wireless/ath9k/ath9k.h
View File

@ -757,14 +757,11 @@ struct ath9k_node_stats {
#define ATH9K_RSSI_EP_MULTIPLIER (1<<7)
enum ath9k_gpio_output_mux_type {
ATH9K_GPIO_OUTPUT_MUX_AS_OUTPUT,
ATH9K_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED,
ATH9K_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED,
ATH9K_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED,
ATH9K_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED,
ATH9K_GPIO_OUTPUT_MUX_NUM_ENTRIES
};
#define AR_GPIO_OUTPUT_MUX_AS_OUTPUT 0
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED 1
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED 2
#define AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED 5
#define AR_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED 6
enum {
ATH9K_RESET_POWER_ON,
@ -1008,4 +1005,7 @@ void ath9k_hw_get_channel_centers(struct ath_hal *ah,
bool ath9k_get_channel_edges(struct ath_hal *ah,
u16 flags, u16 *low,
u16 *high);
void ath9k_hw_cfg_output(struct ath_hal *ah, u32 gpio,
u32 ah_signal_type);
void ath9k_hw_set_gpio(struct ath_hal *ah, u32 gpio, u32 value);
#endif

29
drivers/net/wireless/ath9k/core.h
View File

@ -39,6 +39,7 @@
#include <linux/scatterlist.h>
#include <asm/page.h>
#include <net/mac80211.h>
#include <linux/leds.h>
#include "ath9k.h"
#include "rc.h"
@ -802,6 +803,27 @@ void ath_slow_ant_div(struct ath_antdiv *antdiv,
struct ath_rx_status *rx_stats);
void ath_setdefantenna(void *sc, u32 antenna);
/********************/
/* LED Control */
/********************/
#define ATH_LED_PIN 1
enum ath_led_type {
ATH_LED_RADIO,
ATH_LED_ASSOC,
ATH_LED_TX,
ATH_LED_RX
};
struct ath_led {
struct ath_softc *sc;
struct led_classdev led_cdev;
enum ath_led_type led_type;
char name[32];
bool registered;
};
/********************/
/* Main driver core */
/********************/
@ -884,6 +906,7 @@ struct ath_ht_info {
#define SC_OP_PREAMBLE_SHORT BIT(7)
#define SC_OP_PROTECT_ENABLE BIT(8)
#define SC_OP_RXFLUSH BIT(9)
#define SC_OP_LED_ASSOCIATED BIT(10)
struct ath_softc {
struct ieee80211_hw *hw;
@ -988,6 +1011,12 @@ struct ath_softc {
spinlock_t sc_txbuflock;
spinlock_t sc_resetlock;
spinlock_t node_lock;
/* LEDs */
struct ath_led radio_led;
struct ath_led assoc_led;
struct ath_led tx_led;
struct ath_led rx_led;
};
int ath_init(u16 devid, struct ath_softc *sc);

33
drivers/net/wireless/ath9k/hw.c
View File

@ -2800,32 +2800,11 @@ static void ath9k_hw_gpio_cfg_output_mux(struct ath_hal *ah,
}
}
static bool ath9k_hw_cfg_output(struct ath_hal *ah, u32 gpio,
enum ath9k_gpio_output_mux_type
halSignalType)
void ath9k_hw_cfg_output(struct ath_hal *ah, u32 gpio,
u32 ah_signal_type)
{
u32 ah_signal_type;
u32 gpio_shift;
static u32 MuxSignalConversionTable[] = {
AR_GPIO_OUTPUT_MUX_AS_OUTPUT,
AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED,
AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED,
AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED,
AR_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED,
};
if ((halSignalType >= 0)
&& (halSignalType < ARRAY_SIZE(MuxSignalConversionTable)))
ah_signal_type = MuxSignalConversionTable[halSignalType];
else
return false;
ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
gpio_shift = 2 * gpio;
@ -2834,16 +2813,12 @@ static bool ath9k_hw_cfg_output(struct ath_hal *ah, u32 gpio,
AR_GPIO_OE_OUT,
(AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
(AR_GPIO_OE_OUT_DRV << gpio_shift));
return true;
}
static bool ath9k_hw_set_gpio(struct ath_hal *ah, u32 gpio,
u32 val)
void ath9k_hw_set_gpio(struct ath_hal *ah, u32 gpio, u32 val)
{
REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
AR_GPIO_BIT(gpio));
return true;
}
static u32 ath9k_hw_gpio_get(struct ath_hal *ah, u32 gpio)
@ -5923,7 +5898,7 @@ bool ath9k_hw_reset(struct ath_hal *ah,
else
ath9k_hw_set_gpio(ah, 9, 1);
}
ath9k_hw_cfg_output(ah, 9, ATH9K_GPIO_OUTPUT_MUX_AS_OUTPUT);
ath9k_hw_cfg_output(ah, 9, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
}
ecode = ath9k_hw_process_ini(ah, chan, macmode);

138
drivers/net/wireless/ath9k/main.c
View File

@ -1172,12 +1172,130 @@ enum ath9k_ht_macmode ath_cwm_macmode(struct ath_softc *sc)
return sc->sc_ht_info.tx_chan_width;
}
/********************************/
/* LED functions */
/********************************/
static void ath_led_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
struct ath_softc *sc = led->sc;
switch (brightness) {
case LED_OFF:
if (led->led_type == ATH_LED_ASSOC ||
led->led_type == ATH_LED_RADIO)
sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN,
(led->led_type == ATH_LED_RADIO) ? 1 :
!!(sc->sc_flags & SC_OP_LED_ASSOCIATED));
break;
case LED_FULL:
if (led->led_type == ATH_LED_ASSOC)
sc->sc_flags |= SC_OP_LED_ASSOCIATED;
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0);
break;
default:
break;
}
}
static int ath_register_led(struct ath_softc *sc, struct ath_led *led,
char *trigger)
{
int ret;
led->sc = sc;
led->led_cdev.name = led->name;
led->led_cdev.default_trigger = trigger;
led->led_cdev.brightness_set = ath_led_brightness;
ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev);
if (ret)
DPRINTF(sc, ATH_DBG_FATAL,
"Failed to register led:%s", led->name);
else
led->registered = 1;
return ret;
}
static void ath_unregister_led(struct ath_led *led)
{
if (led->registered) {
led_classdev_unregister(&led->led_cdev);
led->registered = 0;
}
}
static void ath_deinit_leds(struct ath_softc *sc)
{
ath_unregister_led(&sc->assoc_led);
sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
ath_unregister_led(&sc->tx_led);
ath_unregister_led(&sc->rx_led);
ath_unregister_led(&sc->radio_led);
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
}
static void ath_init_leds(struct ath_softc *sc)
{
char *trigger;
int ret;
/* Configure gpio 1 for output */
ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
/* LED off, active low */
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
trigger = ieee80211_get_radio_led_name(sc->hw);
snprintf(sc->radio_led.name, sizeof(sc->radio_led.name),
"ath9k-%s:radio", wiphy_name(sc->hw->wiphy));
ret = ath_register_led(sc, &sc->radio_led, trigger);
sc->radio_led.led_type = ATH_LED_RADIO;
if (ret)
goto fail;
trigger = ieee80211_get_assoc_led_name(sc->hw);
snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name),
"ath9k-%s:assoc", wiphy_name(sc->hw->wiphy));
ret = ath_register_led(sc, &sc->assoc_led, trigger);
sc->assoc_led.led_type = ATH_LED_ASSOC;
if (ret)
goto fail;
trigger = ieee80211_get_tx_led_name(sc->hw);
snprintf(sc->tx_led.name, sizeof(sc->tx_led.name),
"ath9k-%s:tx", wiphy_name(sc->hw->wiphy));
ret = ath_register_led(sc, &sc->tx_led, trigger);
sc->tx_led.led_type = ATH_LED_TX;
if (ret)
goto fail;
trigger = ieee80211_get_rx_led_name(sc->hw);
snprintf(sc->rx_led.name, sizeof(sc->rx_led.name),
"ath9k-%s:rx", wiphy_name(sc->hw->wiphy));
ret = ath_register_led(sc, &sc->rx_led, trigger);
sc->rx_led.led_type = ATH_LED_RX;
if (ret)
goto fail;
return;
fail:
ath_deinit_leds(sc);
}
static int ath_detach(struct ath_softc *sc)
{
struct ieee80211_hw *hw = sc->hw;
DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach ATH hw\n", __func__);
/* Deinit LED control */
ath_deinit_leds(sc);
/* Unregister hw */
ieee80211_unregister_hw(hw);
@ -1271,18 +1389,21 @@ static int ath_attach(u16 devid,
goto bad;
}
/* Initialize LED control */
ath_init_leds(sc);
/* initialize tx/rx engine */
error = ath_tx_init(sc, ATH_TXBUF);
if (error != 0)
goto bad1;
goto detach;
error = ath_rx_init(sc, ATH_RXBUF);
if (error != 0)
goto bad1;
goto detach;
return 0;
bad1:
detach:
ath_detach(sc);
bad:
return error;
@ -1427,6 +1548,10 @@ static void ath_pci_remove(struct pci_dev *pdev)
static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_softc *sc = hw->priv;
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, 3);
@ -1436,6 +1561,8 @@ static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
static int ath_pci_resume(struct pci_dev *pdev)
{
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_softc *sc = hw->priv;
u32 val;
int err;
@ -1452,6 +1579,11 @@ static int ath_pci_resume(struct pci_dev *pdev)
if ((val & 0x0000ff00) != 0)
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
/* Enable LED */
ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
return 0;
}

6
drivers/net/wireless/ath9k/reg.h
View File

@ -899,12 +899,6 @@ enum {
#define AR_GPIO_OUTPUT_MUX2 0x4064
#define AR_GPIO_OUTPUT_MUX3 0x4068
#define AR_GPIO_OUTPUT_MUX_AS_OUTPUT 0
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED 1
#define AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED 2
#define AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED 5
#define AR_GPIO_OUTPUT_MUX_AS_MAC_POWER_LED 6
#define AR_INPUT_STATE 0x406c
#define AR_EEPROM_STATUS_DATA 0x407c