248 lines
6.4 KiB
Diff
248 lines
6.4 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
@@ -557,6 +557,9 @@ struct ath9k_wow_pattern {
|
|
void ath_init_leds(struct ath_softc *sc);
|
|
void ath_deinit_leds(struct ath_softc *sc);
|
|
void ath_fill_led_pin(struct ath_softc *sc);
|
|
+int ath_create_gpio_led(struct ath_softc *sc, int gpio, const char *name,
|
|
+ const char *trigger, bool active_low);
|
|
+
|
|
#else
|
|
static inline void ath_init_leds(struct ath_softc *sc)
|
|
{
|
|
@@ -692,6 +695,13 @@ enum spectral_mode {
|
|
SPECTRAL_CHANSCAN,
|
|
};
|
|
|
|
+struct ath_led {
|
|
+ struct list_head list;
|
|
+ struct ath_softc *sc;
|
|
+ const struct gpio_led *gpio;
|
|
+ struct led_classdev cdev;
|
|
+};
|
|
+
|
|
struct ath_softc {
|
|
struct ieee80211_hw *hw;
|
|
struct device *dev;
|
|
@@ -733,9 +743,8 @@ struct ath_softc {
|
|
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
|
|
|
|
#ifdef CPTCFG_MAC80211_LEDS
|
|
- bool led_registered;
|
|
- char led_name[32];
|
|
- struct led_classdev led_cdev;
|
|
+ const char *led_default_trigger;
|
|
+ struct list_head leds;
|
|
#endif
|
|
|
|
struct ath9k_hw_cal_data caldata;
|
|
--- a/drivers/net/wireless/ath/ath9k/gpio.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
|
|
@@ -24,40 +24,102 @@
|
|
static void ath_led_brightness(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
- struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
|
|
- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF));
|
|
+ struct ath_led *led = container_of(led_cdev, struct ath_led, cdev);
|
|
+ struct ath_softc *sc = led->sc;
|
|
+
|
|
+ ath9k_ps_wakeup(sc);
|
|
+ ath9k_hw_set_gpio(sc->sc_ah, led->gpio->gpio,
|
|
+ (brightness != LED_OFF) ^ led->gpio->active_low);
|
|
+ ath9k_ps_restore(sc);
|
|
+}
|
|
+
|
|
+static int ath_add_led(struct ath_softc *sc, struct ath_led *led)
|
|
+{
|
|
+ const struct gpio_led *gpio = led->gpio;
|
|
+ int ret;
|
|
+
|
|
+ led->cdev.name = gpio->name;
|
|
+ led->cdev.default_trigger = gpio->default_trigger;
|
|
+ led->cdev.brightness_set = ath_led_brightness;
|
|
+
|
|
+ ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->cdev);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+
|
|
+ led->sc = sc;
|
|
+ list_add(&led->list, &sc->leds);
|
|
+
|
|
+ /* Configure gpio for output */
|
|
+ ath9k_hw_cfg_output(sc->sc_ah, gpio->gpio,
|
|
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
|
|
+
|
|
+ /* LED off */
|
|
+ ath9k_hw_set_gpio(sc->sc_ah, gpio->gpio, gpio->active_low);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+int ath_create_gpio_led(struct ath_softc *sc, int gpio_num, const char *name,
|
|
+ const char *trigger, bool active_low)
|
|
+{
|
|
+ struct ath_led *led;
|
|
+ struct gpio_led *gpio;
|
|
+ char *_name;
|
|
+ int ret;
|
|
+
|
|
+ led = kzalloc(sizeof(*led) + sizeof(*gpio) + strlen(name) + 1,
|
|
+ GFP_KERNEL);
|
|
+ if (!led)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ led->gpio = gpio = (struct gpio_led *) (led + 1);
|
|
+ _name = (char *) (led->gpio + 1);
|
|
+
|
|
+ strcpy(_name, name);
|
|
+ gpio->name = _name;
|
|
+ gpio->gpio = gpio_num;
|
|
+ gpio->active_low = active_low;
|
|
+ gpio->default_trigger = trigger;
|
|
+
|
|
+ ret = ath_add_led(sc, led);
|
|
+ if (unlikely(ret < 0))
|
|
+ kfree(led);
|
|
+
|
|
+ return ret;
|
|
}
|
|
|
|
void ath_deinit_leds(struct ath_softc *sc)
|
|
{
|
|
- if (!sc->led_registered)
|
|
- return;
|
|
+ struct ath_led *led;
|
|
|
|
- ath_led_brightness(&sc->led_cdev, LED_OFF);
|
|
- led_classdev_unregister(&sc->led_cdev);
|
|
+ while (!list_empty(&sc->leds)) {
|
|
+ led = list_first_entry(&sc->leds, struct ath_led, list);
|
|
+ list_del(&led->list);
|
|
+ ath_led_brightness(&led->cdev, LED_OFF);
|
|
+ led_classdev_unregister(&led->cdev);
|
|
+ kfree(led);
|
|
+ }
|
|
}
|
|
|
|
void ath_init_leds(struct ath_softc *sc)
|
|
{
|
|
- int ret;
|
|
+ char led_name[32];
|
|
+ const char *trigger;
|
|
+
|
|
+ INIT_LIST_HEAD(&sc->leds);
|
|
|
|
if (AR_SREV_9100(sc->sc_ah))
|
|
return;
|
|
|
|
- if (!led_blink)
|
|
- sc->led_cdev.default_trigger =
|
|
- ieee80211_get_radio_led_name(sc->hw);
|
|
-
|
|
- snprintf(sc->led_name, sizeof(sc->led_name),
|
|
- "ath9k-%s", wiphy_name(sc->hw->wiphy));
|
|
- sc->led_cdev.name = sc->led_name;
|
|
- sc->led_cdev.brightness_set = ath_led_brightness;
|
|
+ snprintf(led_name, sizeof(led_name), "ath9k-%s",
|
|
+ wiphy_name(sc->hw->wiphy));
|
|
|
|
- ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
|
|
- if (ret < 0)
|
|
- return;
|
|
+ if (led_blink)
|
|
+ trigger = sc->led_default_trigger;
|
|
+ else
|
|
+ trigger = ieee80211_get_radio_led_name(sc->hw);
|
|
|
|
- sc->led_registered = true;
|
|
+ ath_create_gpio_led(sc, sc->sc_ah->led_pin, led_name, trigger, 1);
|
|
}
|
|
|
|
void ath_fill_led_pin(struct ath_softc *sc)
|
|
--- a/drivers/net/wireless/ath/ath9k/init.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/init.c
|
|
@@ -891,7 +891,7 @@ int ath9k_init_device(u16 devid, struct
|
|
|
|
#ifdef CPTCFG_MAC80211_LEDS
|
|
/* must be initialized before ieee80211_register_hw */
|
|
- sc->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(sc->hw,
|
|
+ sc->led_default_trigger = ieee80211_create_tpt_led_trigger(sc->hw,
|
|
IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_tpt_blink,
|
|
ARRAY_SIZE(ath9k_tpt_blink));
|
|
#endif
|
|
--- a/drivers/net/wireless/ath/ath9k/debug.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/debug.c
|
|
@@ -1825,6 +1825,61 @@ static const struct file_operations fops
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
+#ifdef CONFIG_MAC80211_LEDS
|
|
+
|
|
+static ssize_t write_file_gpio_led(struct file *file, const char __user *ubuf,
|
|
+ size_t count, loff_t *ppos)
|
|
+{
|
|
+ struct ath_softc *sc = file->private_data;
|
|
+ char buf[32], *str, *name, *c;
|
|
+ ssize_t len;
|
|
+ unsigned int gpio;
|
|
+ bool active_low = false;
|
|
+
|
|
+ len = min(count, sizeof(buf) - 1);
|
|
+ if (copy_from_user(buf, ubuf, len))
|
|
+ return -EFAULT;
|
|
+
|
|
+ buf[len] = '\0';
|
|
+ name = strchr(buf, ',');
|
|
+ if (!name)
|
|
+ return -EINVAL;
|
|
+
|
|
+ *(name++) = 0;
|
|
+ if (!*name)
|
|
+ return -EINVAL;
|
|
+
|
|
+ c = strchr(name, '\n');
|
|
+ if (c)
|
|
+ *c = 0;
|
|
+
|
|
+ str = buf;
|
|
+ if (*str == '!') {
|
|
+ str++;
|
|
+ active_low = true;
|
|
+ }
|
|
+
|
|
+ if (kstrtouint(str, 0, &gpio) < 0)
|
|
+ return -EINVAL;
|
|
+
|
|
+ if (gpio >= sc->sc_ah->caps.num_gpio_pins)
|
|
+ return -EINVAL;
|
|
+
|
|
+ if (ath_create_gpio_led(sc, gpio, name, NULL, active_low) < 0)
|
|
+ return -EINVAL;
|
|
+
|
|
+ return count;
|
|
+}
|
|
+
|
|
+static const struct file_operations fops_gpio_led = {
|
|
+ .write = write_file_gpio_led,
|
|
+ .open = simple_open,
|
|
+ .owner = THIS_MODULE,
|
|
+ .llseek = default_llseek,
|
|
+};
|
|
+
|
|
+#endif
|
|
+
|
|
|
|
int ath9k_init_debug(struct ath_hw *ah)
|
|
{
|
|
@@ -1847,6 +1902,10 @@ int ath9k_init_debug(struct ath_hw *ah)
|
|
&fops_eeprom);
|
|
debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
|
|
sc, &fops_chanbw);
|
|
+#ifdef CONFIG_MAC80211_LEDS
|
|
+ debugfs_create_file("gpio_led", S_IWUSR,
|
|
+ sc->debug.debugfs_phy, sc, &fops_gpio_led);
|
|
+#endif
|
|
debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
|
|
&fops_dma);
|
|
debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
|