diff options
Diffstat (limited to 'include/linux/leds.h')
| -rw-r--r-- | include/linux/leds.h | 625 |
1 files changed, 545 insertions, 80 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h index 0287ab296689..b16b803cc1ac 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -1,52 +1,141 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Driver model for leds and led triggers * * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> * Copyright (C) 2005 Richard Purdie <rpurdie@openedhand.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * */ #ifndef __LINUX_LEDS_H_INCLUDED #define __LINUX_LEDS_H_INCLUDED -#include <linux/list.h> -#include <linux/spinlock.h> +#include <dt-bindings/leds/common.h> +#include <linux/device.h> +#include <linux/mutex.h> #include <linux/rwsem.h> +#include <linux/spinlock.h> #include <linux/timer.h> +#include <linux/types.h> #include <linux/workqueue.h> -struct device; +struct attribute_group; +struct device_node; +struct fwnode_handle; +struct gpio_desc; +struct kernfs_node; +struct led_pattern; +struct platform_device; + /* * LED Core */ +/* This is obsolete/useless. We now support variable maximum brightness. */ enum led_brightness { LED_OFF = 0, + LED_ON = 1, LED_HALF = 127, LED_FULL = 255, }; +enum led_default_state { + LEDS_DEFSTATE_OFF = 0, + LEDS_DEFSTATE_ON = 1, + LEDS_DEFSTATE_KEEP = 2, +}; + +/** + * struct led_lookup_data - represents a single LED lookup entry + * + * @list: internal list of all LED lookup entries + * @provider: name of led_classdev providing the LED + * @dev_id: name of the device associated with this LED + * @con_id: name of the LED from the device's point of view + */ +struct led_lookup_data { + struct list_head list; + const char *provider; + const char *dev_id; + const char *con_id; +}; + +struct led_init_data { + /* device fwnode handle */ + struct fwnode_handle *fwnode; + /* + * default <color:function> tuple, for backward compatibility + * with in-driver hard-coded LED names used as a fallback when + * DT "label" property is absent; it should be set to NULL + * in new LED class drivers. + */ + const char *default_label; + /* + * string to be used for devicename section of LED class device + * either for label based LED name composition path or for fwnode + * based when devname_mandatory is true + */ + const char *devicename; + /* + * indicates if LED name should always comprise devicename section; + * only LEDs exposed by drivers of hot-pluggable devices should + * set it to true + */ + bool devname_mandatory; +}; + +enum led_default_state led_init_default_state_get(struct fwnode_handle *fwnode); + +struct led_hw_trigger_type { + int dummy; +}; + struct led_classdev { const char *name; - int brightness; - int max_brightness; + unsigned int brightness; + unsigned int max_brightness; + unsigned int color; int flags; /* Lower 16 bits reflect status */ -#define LED_SUSPENDED (1 << 0) +#define LED_SUSPENDED BIT(0) +#define LED_UNREGISTERING BIT(1) /* Upper 16 bits reflect control information */ -#define LED_CORE_SUSPENDRESUME (1 << 16) -#define LED_BLINK_ONESHOT (1 << 17) -#define LED_BLINK_ONESHOT_STOP (1 << 18) -#define LED_BLINK_INVERT (1 << 19) - - /* Set LED brightness level */ - /* Must not sleep, use a workqueue if needed */ +#define LED_CORE_SUSPENDRESUME BIT(16) +#define LED_SYSFS_DISABLE BIT(17) +#define LED_DEV_CAP_FLASH BIT(18) +#define LED_HW_PLUGGABLE BIT(19) +#define LED_PANIC_INDICATOR BIT(20) +#define LED_BRIGHT_HW_CHANGED BIT(21) +#define LED_RETAIN_AT_SHUTDOWN BIT(22) +#define LED_INIT_DEFAULT_TRIGGER BIT(23) +#define LED_REJECT_NAME_CONFLICT BIT(24) +#define LED_MULTI_COLOR BIT(25) + + /* set_brightness_work / blink_timer flags, atomic, private. */ + unsigned long work_flags; + +#define LED_BLINK_SW 0 +#define LED_BLINK_ONESHOT 1 +#define LED_BLINK_ONESHOT_STOP 2 +#define LED_BLINK_INVERT 3 +#define LED_BLINK_BRIGHTNESS_CHANGE 4 +#define LED_BLINK_DISABLE 5 + /* Brightness off also disables hw-blinking so it is a separate action */ +#define LED_SET_BRIGHTNESS_OFF 6 +#define LED_SET_BRIGHTNESS 7 +#define LED_SET_BLINK 8 + + /* Set LED brightness level + * Must not sleep. Use brightness_set_blocking for drivers + * that can sleep while setting brightness. + */ void (*brightness_set)(struct led_classdev *led_cdev, enum led_brightness brightness); + /* + * Set LED brightness level immediately - it can block the caller for + * the time required for accessing a LED device register. + */ + int (*brightness_set_blocking)(struct led_classdev *led_cdev, + enum led_brightness brightness); /* Get LED brightness level */ enum led_brightness (*brightness_get)(struct led_classdev *led_cdev); @@ -55,23 +144,38 @@ struct led_classdev { * and if both are zero then a sensible default should be chosen. * The call should adjust the timings in that case and if it can't * match the values specified exactly. - * Deactivate blinking again when the brightness is set to a fixed - * value via the brightness_set() callback. + * Deactivate blinking again when the brightness is set to LED_OFF + * via the brightness_set() callback. + * For led_blink_set_nosleep() the LED core assumes that blink_set + * implementations, of drivers which do not use brightness_set_blocking, + * will not sleep. Therefor if brightness_set_blocking is not set + * this function must not sleep! */ int (*blink_set)(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off); + int (*pattern_set)(struct led_classdev *led_cdev, + struct led_pattern *pattern, u32 len, int repeat); + int (*pattern_clear)(struct led_classdev *led_cdev); + struct device *dev; + const struct attribute_group **groups; + struct list_head node; /* LED Device list */ const char *default_trigger; /* Trigger to use */ unsigned long blink_delay_on, blink_delay_off; struct timer_list blink_timer; int blink_brightness; + int new_blink_brightness; + void (*flash_resume)(struct led_classdev *led_cdev); + struct workqueue_struct *wq; /* LED workqueue */ struct work_struct set_brightness_work; int delayed_set_value; + unsigned long delayed_delay_on; + unsigned long delayed_delay_off; #ifdef CONFIG_LEDS_TRIGGERS /* Protects the trigger data below */ @@ -82,14 +186,119 @@ struct led_classdev { void *trigger_data; /* true if activated - deactivate routine uses it to do cleanup */ bool activated; + + /* LEDs that have private triggers have this set */ + struct led_hw_trigger_type *trigger_type; + + /* Unique trigger name supported by LED set in hw control mode */ + const char *hw_control_trigger; + /* + * Check if the LED driver supports the requested mode provided by the + * defined supported trigger to setup the LED to hw control mode. + * + * Return 0 on success. Return -EOPNOTSUPP when the passed flags are not + * supported and software fallback needs to be used. + * Return a negative error number on any other case for check fail due + * to various reason like device not ready or timeouts. + */ + int (*hw_control_is_supported)(struct led_classdev *led_cdev, + unsigned long flags); + /* + * Activate hardware control, LED driver will use the provided flags + * from the supported trigger and setup the LED to be driven by hardware + * following the requested mode from the trigger flags. + * Deactivate hardware blink control by setting brightness to LED_OFF via + * the brightness_set() callback. + * + * Return 0 on success, a negative error number on flags apply fail. + */ + int (*hw_control_set)(struct led_classdev *led_cdev, + unsigned long flags); + /* + * Get from the LED driver the current mode that the LED is set in hw + * control mode and put them in flags. + * Trigger can use this to get the initial state of a LED already set in + * hardware blink control. + * + * Return 0 on success, a negative error number on failing parsing the + * initial mode. Error from this function is NOT FATAL as the device + * may be in a not supported initial state by the attached LED trigger. + */ + int (*hw_control_get)(struct led_classdev *led_cdev, + unsigned long *flags); + /* + * Get the device this LED blinks in response to. + * e.g. for a PHY LED, it is the network device. If the LED is + * not yet associated to a device, return NULL. + */ + struct device *(*hw_control_get_device)(struct led_classdev *led_cdev); +#endif + +#ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED + int brightness_hw_changed; + struct kernfs_node *brightness_hw_changed_kn; #endif + + /* Ensures consistent access to the LED class device */ + struct mutex led_access; }; -extern int led_classdev_register(struct device *parent, - struct led_classdev *led_cdev); -extern void led_classdev_unregister(struct led_classdev *led_cdev); -extern void led_classdev_suspend(struct led_classdev *led_cdev); -extern void led_classdev_resume(struct led_classdev *led_cdev); +/** + * led_classdev_register_ext - register a new object of LED class with + * init data + * @parent: LED controller device this LED is driven by + * @led_cdev: the led_classdev structure for this device + * @init_data: the LED class device initialization data + * + * Register a new object of LED class, with name derived from init_data. + * + * Returns: 0 on success or negative error value on failure + */ +int led_classdev_register_ext(struct device *parent, + struct led_classdev *led_cdev, + struct led_init_data *init_data); + +/** + * led_classdev_register - register a new object of LED class + * @parent: LED controller device this LED is driven by + * @led_cdev: the led_classdev structure for this device + * + * Register a new object of LED class, with name derived from the name property + * of passed led_cdev argument. + * + * Returns: 0 on success or negative error value on failure + */ +static inline int led_classdev_register(struct device *parent, + struct led_classdev *led_cdev) +{ + return led_classdev_register_ext(parent, led_cdev, NULL); +} + +int devm_led_classdev_register_ext(struct device *parent, + struct led_classdev *led_cdev, + struct led_init_data *init_data); +static inline int devm_led_classdev_register(struct device *parent, + struct led_classdev *led_cdev) +{ + return devm_led_classdev_register_ext(parent, led_cdev, NULL); +} +void led_classdev_unregister(struct led_classdev *led_cdev); +void devm_led_classdev_unregister(struct device *parent, + struct led_classdev *led_cdev); +void led_classdev_suspend(struct led_classdev *led_cdev); +void led_classdev_resume(struct led_classdev *led_cdev); + +void led_add_lookup(struct led_lookup_data *led_lookup); +void led_remove_lookup(struct led_lookup_data *led_lookup); + +struct led_classdev *__must_check led_get(struct device *dev, char *con_id); +struct led_classdev *__must_check devm_led_get(struct device *dev, char *con_id); + +extern void led_put(struct led_classdev *led_cdev); +struct led_classdev *__must_check devm_of_led_get(struct device *dev, + int index); +struct led_classdev *__must_check devm_of_led_get_optional(struct device *dev, + int index); /** * led_blink_set - set blinking with software fallback @@ -102,13 +311,27 @@ extern void led_classdev_resume(struct led_classdev *led_cdev); * software blinking if there is no hardware blinking or if * the LED refuses the passed values. * + * This function may sleep! + * * Note that if software blinking is active, simply calling * led_cdev->brightness_set() will not stop the blinking, - * use led_classdev_brightness_set() instead. + * use led_set_brightness() instead. + */ +void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, + unsigned long *delay_off); + +/** + * led_blink_set_nosleep - set blinking, guaranteed to not sleep + * @led_cdev: the LED to start blinking + * @delay_on: the time it should be on (in ms) + * @delay_off: the time it should ble off (in ms) + * + * This function makes the LED blink and is guaranteed to not sleep. Otherwise + * this is the same as led_blink_set(), see led_blink_set() for details. */ -extern void led_blink_set(struct led_classdev *led_cdev, - unsigned long *delay_on, - unsigned long *delay_off); +void led_blink_set_nosleep(struct led_classdev *led_cdev, unsigned long delay_on, + unsigned long delay_off); + /** * led_blink_set_oneshot - do a oneshot software blink * @led_cdev: the LED to start blinking @@ -122,11 +345,12 @@ extern void led_blink_set(struct led_classdev *led_cdev, * * If invert is set, led blinks for delay_off first, then for * delay_on and leave the led on after the on-off cycle. + * + * This function is guaranteed not to sleep. */ -extern void led_blink_set_oneshot(struct led_classdev *led_cdev, - unsigned long *delay_on, - unsigned long *delay_off, - int invert); +void led_blink_set_oneshot(struct led_classdev *led_cdev, + unsigned long *delay_on, unsigned long *delay_off, + int invert); /** * led_set_brightness - set LED brightness * @led_cdev: the LED to set @@ -134,10 +358,116 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev, * * Set an LED's brightness, and, if necessary, cancel the * software blink timer that implements blinking when the - * hardware doesn't. + * hardware doesn't. This function is guaranteed not to sleep. + */ +void led_set_brightness(struct led_classdev *led_cdev, unsigned int brightness); + +/** + * led_set_brightness_sync - set LED brightness synchronously + * @led_cdev: the LED to set + * @value: the brightness to set it to + * + * Set an LED's brightness immediately. This function will block + * the caller for the time required for accessing device registers, + * and it can sleep. + * + * Returns: 0 on success or negative error value on failure + */ +int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value); + +/** + * led_mc_set_brightness - set mc LED color intensity values and brightness + * @led_cdev: the LED to set + * @intensity_value: array of per color intensity values to set + * @num_colors: amount of entries in intensity_value array + * @brightness: the brightness to set the LED to + * + * Set a multi-color LED's per color intensity values and brightness. + * If necessary, this cancels the software blink timer. This function is + * guaranteed not to sleep. + * + * Calling this function on a non multi-color led_classdev or with the wrong + * num_colors value is an error. In this case an error will be logged once + * and the call will do nothing. + */ +void led_mc_set_brightness(struct led_classdev *led_cdev, + unsigned int *intensity_value, unsigned int num_colors, + unsigned int brightness); + +/** + * led_update_brightness - update LED brightness + * @led_cdev: the LED to query + * + * Get an LED's current brightness and update led_cdev->brightness + * member with the obtained value. + * + * Returns: 0 on success or negative error value on failure + */ +int led_update_brightness(struct led_classdev *led_cdev); + +/** + * led_get_default_pattern - return default pattern + * + * @led_cdev: the LED to get default pattern for + * @size: pointer for storing the number of elements in returned array, + * modified only if return != NULL + * + * Return: Allocated array of integers with default pattern from device tree + * or NULL. Caller is responsible for kfree(). + */ +u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size); + +/** + * led_sysfs_disable - disable LED sysfs interface + * @led_cdev: the LED to set + * + * Disable the led_cdev's sysfs interface. */ -extern void led_set_brightness(struct led_classdev *led_cdev, - enum led_brightness brightness); +void led_sysfs_disable(struct led_classdev *led_cdev); + +/** + * led_sysfs_enable - enable LED sysfs interface + * @led_cdev: the LED to set + * + * Enable the led_cdev's sysfs interface. + */ +void led_sysfs_enable(struct led_classdev *led_cdev); + +/** + * led_compose_name - compose LED class device name + * @dev: LED controller device object + * @init_data: the LED class device initialization data + * @led_classdev_name: composed LED class device name + * + * Create LED class device name basing on the provided init_data argument. + * The name can have <devicename:color:function> or <color:function>. + * form, depending on the init_data configuration. + * + * Returns: 0 on success or negative error value on failure + */ +int led_compose_name(struct device *dev, struct led_init_data *init_data, + char *led_classdev_name); + +/** + * led_get_color_name - get string representation of color ID + * @color_id: The LED_COLOR_ID_* constant + * + * Get the string name of a LED_COLOR_ID_* constant. + * + * Returns: A string constant or NULL on an invalid ID. + */ +const char *led_get_color_name(u8 color_id); + +/** + * led_sysfs_is_disabled - check if LED sysfs interface is disabled + * @led_cdev: the LED to query + * + * Returns: true if the led_cdev's sysfs interface is disabled. + */ +static inline bool led_sysfs_is_disabled(struct led_classdev *led_cdev) +{ + return led_cdev->flags & LED_SYSFS_DISABLE; +} /* * LED Triggers @@ -153,50 +483,77 @@ extern void led_set_brightness(struct led_classdev *led_cdev, struct led_trigger { /* Trigger Properties */ const char *name; - void (*activate)(struct led_classdev *led_cdev); + int (*activate)(struct led_classdev *led_cdev); void (*deactivate)(struct led_classdev *led_cdev); + /* Brightness set by led_trigger_event */ + enum led_brightness brightness; + + /* LED-private triggers have this set */ + struct led_hw_trigger_type *trigger_type; + /* LEDs under control by this trigger (for simple triggers) */ - rwlock_t leddev_list_lock; + spinlock_t leddev_list_lock; struct list_head led_cdevs; /* Link to next registered trigger */ struct list_head next_trig; + + const struct attribute_group **groups; }; +/* + * Currently the attributes in struct led_trigger::groups are added directly to + * the LED device. As this might change in the future, the following + * macros abstract getting the LED device and its trigger_data from the dev + * parameter passed to the attribute accessor functions. + */ +#define led_trigger_get_led(dev) ((struct led_classdev *)dev_get_drvdata((dev))) +#define led_trigger_get_drvdata(dev) (led_get_trigger_data(led_trigger_get_led(dev))) + /* Registration functions for complex triggers */ -extern int led_trigger_register(struct led_trigger *trigger); -extern void led_trigger_unregister(struct led_trigger *trigger); +int led_trigger_register(struct led_trigger *trigger); +void led_trigger_unregister(struct led_trigger *trigger); +int devm_led_trigger_register(struct device *dev, + struct led_trigger *trigger); -extern void led_trigger_register_simple(const char *name, +void led_trigger_register_simple(const char *name, struct led_trigger **trigger); -extern void led_trigger_unregister_simple(struct led_trigger *trigger); -extern void led_trigger_event(struct led_trigger *trigger, - enum led_brightness event); -extern void led_trigger_blink(struct led_trigger *trigger, - unsigned long *delay_on, - unsigned long *delay_off); -extern void led_trigger_blink_oneshot(struct led_trigger *trigger, - unsigned long *delay_on, - unsigned long *delay_off, - int invert); -/** - * led_trigger_rename_static - rename a trigger - * @name: the new trigger name - * @trig: the LED trigger to rename - * - * Change a LED trigger name by copying the string passed in - * name into current trigger name, which MUST be large - * enough for the new string. - * - * Note that name must NOT point to the same string used - * during LED registration, as that could lead to races. - * - * This is meant to be used on triggers with statically - * allocated name. - */ -extern void led_trigger_rename_static(const char *name, - struct led_trigger *trig); +void led_trigger_unregister_simple(struct led_trigger *trigger); +void led_trigger_event(struct led_trigger *trigger, enum led_brightness event); +void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness); +void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on, + unsigned long delay_off); +void led_trigger_blink_oneshot(struct led_trigger *trigger, + unsigned long delay_on, + unsigned long delay_off, + int invert); +void led_trigger_set_default(struct led_classdev *led_cdev); +int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger); +void led_trigger_remove(struct led_classdev *led_cdev); + +static inline void led_set_trigger_data(struct led_classdev *led_cdev, + void *trigger_data) +{ + led_cdev->trigger_data = trigger_data; +} + +static inline void *led_get_trigger_data(struct led_classdev *led_cdev) +{ + return led_cdev->trigger_data; +} + +static inline enum led_brightness +led_trigger_get_brightness(const struct led_trigger *trigger) +{ + return trigger ? trigger->brightness : LED_OFF; +} + +#define module_led_trigger(__led_trigger) \ + module_driver(__led_trigger, led_trigger_register, \ + led_trigger_unregister) #else @@ -209,23 +566,85 @@ static inline void led_trigger_register_simple(const char *name, static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {} static inline void led_trigger_event(struct led_trigger *trigger, enum led_brightness event) {} +static inline void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness) {} +static inline void led_trigger_blink(struct led_trigger *trigger, + unsigned long delay_on, + unsigned long delay_off) {} +static inline void led_trigger_blink_oneshot(struct led_trigger *trigger, + unsigned long delay_on, + unsigned long delay_off, + int invert) {} +static inline void led_trigger_set_default(struct led_classdev *led_cdev) {} +static inline int led_trigger_set(struct led_classdev *led_cdev, + struct led_trigger *trigger) +{ + return 0; +} + +static inline void led_trigger_remove(struct led_classdev *led_cdev) {} +static inline void led_set_trigger_data(struct led_classdev *led_cdev) {} +static inline void *led_get_trigger_data(struct led_classdev *led_cdev) +{ + return NULL; +} + +static inline enum led_brightness +led_trigger_get_brightness(const struct led_trigger *trigger) +{ + return LED_OFF; +} + #endif /* CONFIG_LEDS_TRIGGERS */ +/* Trigger specific enum */ +enum led_trigger_netdev_modes { + TRIGGER_NETDEV_LINK = 0, + TRIGGER_NETDEV_LINK_10, + TRIGGER_NETDEV_LINK_100, + TRIGGER_NETDEV_LINK_1000, + TRIGGER_NETDEV_LINK_2500, + TRIGGER_NETDEV_LINK_5000, + TRIGGER_NETDEV_LINK_10000, + TRIGGER_NETDEV_HALF_DUPLEX, + TRIGGER_NETDEV_FULL_DUPLEX, + TRIGGER_NETDEV_TX, + TRIGGER_NETDEV_RX, + TRIGGER_NETDEV_TX_ERR, + TRIGGER_NETDEV_RX_ERR, + + /* Keep last */ + __TRIGGER_NETDEV_MAX, +}; + /* Trigger specific functions */ -#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK -extern void ledtrig_ide_activity(void); +#ifdef CONFIG_LEDS_TRIGGER_DISK +void ledtrig_disk_activity(bool write); +#else +static inline void ledtrig_disk_activity(bool write) {} +#endif + +#ifdef CONFIG_LEDS_TRIGGER_MTD +void ledtrig_mtd_activity(void); #else -static inline void ledtrig_ide_activity(void) {} +static inline void ledtrig_mtd_activity(void) {} #endif #if defined(CONFIG_LEDS_TRIGGER_CAMERA) || defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE) -extern void ledtrig_flash_ctrl(bool on); -extern void ledtrig_torch_ctrl(bool on); +void ledtrig_flash_ctrl(bool on); +void ledtrig_torch_ctrl(bool on); #else static inline void ledtrig_flash_ctrl(bool on) {} static inline void ledtrig_torch_ctrl(bool on) {} #endif +#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_BACKLIGHT) +void ledtrig_backlight_blank(bool blank); +#else +static inline void ledtrig_backlight_blank(bool blank) {} +#endif + /* * Generic LED platform data for describing LED names and default triggers. */ @@ -240,6 +659,19 @@ struct led_platform_data { struct led_info *leds; }; +struct led_properties { + u32 color; + bool color_present; + const char *function; + u32 func_enum; + bool func_enum_present; + const char *label; +}; + +typedef int (*gpio_blink_set_t)(struct gpio_desc *desc, int state, + unsigned long *delay_on, + unsigned long *delay_off); + /* For the leds-gpio driver */ struct gpio_led { const char *name; @@ -247,12 +679,15 @@ struct gpio_led { unsigned gpio; unsigned active_low : 1; unsigned retain_state_suspended : 1; + unsigned panic_indicator : 1; unsigned default_state : 2; + unsigned retain_state_shutdown : 1; /* default_state should be one of LEDS_GPIO_DEFSTATE_(ON|OFF|KEEP) */ + struct gpio_desc *gpiod; }; -#define LEDS_GPIO_DEFSTATE_OFF 0 -#define LEDS_GPIO_DEFSTATE_ON 1 -#define LEDS_GPIO_DEFSTATE_KEEP 2 +#define LEDS_GPIO_DEFSTATE_OFF LEDS_DEFSTATE_OFF +#define LEDS_GPIO_DEFSTATE_ON LEDS_DEFSTATE_ON +#define LEDS_GPIO_DEFSTATE_KEEP LEDS_DEFSTATE_KEEP struct gpio_led_platform_data { int num_leds; @@ -261,13 +696,19 @@ struct gpio_led_platform_data { #define GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */ #define GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */ #define GPIO_LED_BLINK 2 /* Please, blink */ - int (*gpio_blink_set)(unsigned gpio, int state, - unsigned long *delay_on, - unsigned long *delay_off); + gpio_blink_set_t gpio_blink_set; }; +#ifdef CONFIG_LEDS_GPIO_REGISTER struct platform_device *gpio_led_register_device( int id, const struct gpio_led_platform_data *pdata); +#else +static inline struct platform_device *gpio_led_register_device( + int id, const struct gpio_led_platform_data *pdata) +{ + return 0; +} +#endif enum cpu_led_event { CPU_LED_IDLE_START, /* CPU enters idle */ @@ -277,7 +718,7 @@ enum cpu_led_event { CPU_LED_HALTED, /* Machine shutdown */ }; #ifdef CONFIG_LEDS_TRIGGER_CPU -extern void ledtrig_cpu(enum cpu_led_event evt); +void ledtrig_cpu(enum cpu_led_event evt); #else static inline void ledtrig_cpu(enum cpu_led_event evt) { @@ -285,4 +726,28 @@ static inline void ledtrig_cpu(enum cpu_led_event evt) } #endif +#ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED +void led_classdev_notify_brightness_hw_changed( + struct led_classdev *led_cdev, unsigned int brightness); +#else +static inline void led_classdev_notify_brightness_hw_changed( + struct led_classdev *led_cdev, enum led_brightness brightness) { } +#endif + +/** + * struct led_pattern - pattern interval settings + * @delta_t: pattern interval delay, in milliseconds + * @brightness: pattern interval brightness + */ +struct led_pattern { + u32 delta_t; + int brightness; +}; + +enum led_audio { + LED_AUDIO_MUTE, /* master mute LED */ + LED_AUDIO_MICMUTE, /* mic mute LED */ + NUM_AUDIO_LEDS +}; + #endif /* __LINUX_LEDS_H_INCLUDED */ |