144 lines
5.2 KiB
C
144 lines
5.2 KiB
C
/* include/linux/leds/flashlight.h
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* Header of Flashlight Class Device Driver
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*
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* Copyright (C) 2013 Richtek Technology Corp.
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* Patrick Chang <patrick_chang@richtek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef LINUX_LEDS_FLASHLIGHT_H
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#define LINUX_LEDS_FLASHLIGHT_H
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#include <linux/device.h>
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#include <linux/mutex.h>
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typedef enum flashlight_type {
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FLASHLIGHT_TYPE_XENON = 0,
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FLASHLIGHT_TYPE_LED,
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FLASHLIFHT_TYPE_BULB,
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FLASHLIGHT_TYPE_MAX,
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} flashlight_type_t;
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typedef enum flashlight_mode {
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FLASHLIGHT_MODE_OFF = 0,
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FLASHLIGHT_MODE_TORCH,
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FLASHLIGHT_MODE_FLASH,
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/* MIXED mode means TORCH + FLASH */
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FLASHLIGHT_MODE_MIXED,
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FLASHLIGHT_MODE_MAX,
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} flashlight_mode_t;
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struct flashlight_device;
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typedef int (*flashlight_charge_event_cb)(void *data, int remains);
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struct flashlight_ops {
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int (*set_torch_brightness)(struct flashlight_device *, int);
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int (*set_strobe_brightness)(struct flashlight_device *, int);
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int (*set_strobe_timeout)(struct flashlight_device *, int);
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int (*list_strobe_timeout)(struct flashlight_device *, int);
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int (*set_mode)(struct flashlight_device *, int);
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int (*set_color_temperature)(struct flashlight_device *, int);
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int (*list_color_temperature)(struct flashlight_device *, int);
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int (*strobe_charge)(struct flashlight_device *,
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flashlight_charge_event_cb, void *, int);
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#if defined(CONFIG_FLED_SM5703) || defined(CONFIG_LEDS_SM5705)
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int (*strobe)(struct flashlight_device *, int);
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#else
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int (*strobe)(struct flashlight_device *);
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#endif
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int (*suspend)(struct flashlight_device *, pm_message_t);
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int (*resume)(struct flashlight_device *);
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};
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struct flashlight_properties {
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/* Flashlight type */
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enum flashlight_type type;
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/* Xenon type flashlight doesn't support torch mode */
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enum flashlight_mode mode;
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/* Color temperature, unit: K, 0 means unknown */
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int color_temperature;
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int torch_brightness;
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int torch_max_brightness;
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int strobe_brightness;
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int strobe_max_brightness;
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int strobe_delay;
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int strobe_timeout;
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const char *alias_name;
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};
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struct flashlight_device {
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/* Flashlight properties */
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struct flashlight_properties props;
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const struct flashlight_ops *ops;
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struct mutex ops_lock;
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struct device dev;
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};
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extern struct flashlight_device *flashlight_device_register(const char *name,
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struct device *parent, void *devdata, const struct flashlight_ops *ops,
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const struct flashlight_properties *props);
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extern void flashlight_device_unregister(struct flashlight_device *flashlight_dev);
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extern struct flashlight_device *find_flashlight_by_name(char *name);
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extern int flashlight_list_color_temperature(
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struct flashlight_device *flashlight_dev,
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int selector);
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extern int flashlight_set_color_temperature(
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struct flashlight_device *flashlight_dev,
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int minK, int maxK);
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extern int flashlight_set_torch_brightness(
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struct flashlight_device *flashlight_dev,
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int brightness_level);
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extern int flashlight_set_strobe_brightness(
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struct flashlight_device *flashlight_dev,
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int brightness_level);
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extern int flashlight_list_strobe_timeout(
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struct flashlight_device *flashlight_dev,
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int selector);
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extern int flashlight_set_strobe_timeout(
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struct flashlight_device *flashlight_dev,
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int min_ms, int max_ms);
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extern int flashlight_set_mode(struct flashlight_device *flashlight_dev,
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int mode);
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extern int flashlight_flash(struct flashlight_device *flashlight_dev, int turn_way);
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#if defined(CONFIG_FLED_SM5703) || defined(CONFIG_LEDS_SM5705)
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extern int flashlight_strobe(struct flashlight_device *flashlight_dev, int turn_way);
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#else
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extern int flashlight_strobe(struct flashlight_device *flashlight_dev);
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#endif
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/* flashlight_charge_event_cb(void *data, int remains)
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* description :
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* callback function of flashlight charging progress
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* arguments :
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* @data : data pass by flashlight_strobe_charge()
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* @remains : remained time to full chargerd, unit : ms ; 0 means ready
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* return : 0 means succeess, otherwise see definitions in errno.h
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*/
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/* flashlight_strobe_chargestruct flashlight_device *flashlight_dev,
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* flashlight_charge_event_cb cb, void *data, int start)
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* description :
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* flashlight start / stop charging
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* @flashlight_dev : flashlight devices
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* @flashlight_charge_event_cb : callback function to report progress
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* @data : bypass to callback function
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* @start : 1 means start; 0 means stop
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*/
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extern int flashlight_strobe_charge(struct flashlight_device *flashlight_dev,
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flashlight_charge_event_cb cb, void *data, int start);
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#define to_flashlight_device(obj) container_of(obj, struct flashlight_device, dev)
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static inline void * flashlight_get_data(
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struct flashlight_device *flashlight_dev)
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{
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return dev_get_drvdata(&flashlight_dev->dev);
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}
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#endif /*LINUX_LEDS_FLASHLIGHT_H*/
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