diff options
Diffstat (limited to 'package/kernel/mac80211/patches/530-ath9k_extra_leds.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/530-ath9k_extra_leds.patch | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch b/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch new file mode 100644 index 0000000..89e3c97 --- /dev/null +++ b/package/kernel/mac80211/patches/530-ath9k_extra_leds.patch @@ -0,0 +1,251 @@ +--- a/drivers/net/wireless/ath/ath9k/ath9k.h ++++ b/drivers/net/wireless/ath/ath9k/ath9k.h +@@ -813,6 +813,9 @@ static inline int ath9k_dump_btcoex(stru + 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) + { +@@ -952,6 +955,13 @@ void ath_ant_comb_scan(struct ath_softc + + #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */ + ++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; +@@ -1003,9 +1013,8 @@ struct ath_softc { + spinlock_t chan_lock; + + #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 + + #ifdef CPTCFG_ATH9K_DEBUGFS +--- a/drivers/net/wireless/ath/ath9k/gpio.c ++++ b/drivers/net/wireless/ath/ath9k/gpio.c +@@ -24,45 +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); +- u32 val = (brightness == LED_OFF); ++ struct ath_led *led = container_of(led_cdev, struct ath_led, cdev); ++ struct ath_softc *sc = led->sc; + +- if (sc->sc_ah->config.led_active_high) +- val = !val; ++ 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; + +- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val); ++ 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 (!ath9k_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 (ath9k_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 +@@ -950,7 +950,7 @@ 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 +@@ -1393,6 +1393,61 @@ 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) + { +@@ -1417,6 +1472,10 @@ 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_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy, + read_file_dma); + debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy, |