drivers/media/platform/msm/camera_v2/sensor/flash/msm_flash.h

/* Copyright (c) 2009-2016, 2019, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
#ifndef MSM_FLASH_H
#define MSM_FLASH_H

#include <linux/leds.h>
#include <linux/platform_device.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-ioctl.h>
#include <media/msm_cam_sensor.h>
#include <soc/qcom/camera2.h>
#include "msm_camera_i2c.h"
#include "msm_sd.h"

#define DEFINE_MSM_MUTEX(mutexname) \
	static struct mutex mutexname = __MUTEX_INITIALIZER(mutexname)

enum msm_camera_flash_state_t {
	MSM_CAMERA_FLASH_INIT,
	MSM_CAMERA_FLASH_OFF,
	MSM_CAMERA_FLASH_LOW,
	MSM_CAMERA_FLASH_HIGH,
	MSM_CAMERA_FLASH_RELEASE,
};

struct msm_flash_ctrl_t;

struct msm_flash_func_t {
	int32_t (*camera_flash_init)(struct msm_flash_ctrl_t *,
		struct msm_flash_cfg_data_t *);
	int32_t (*camera_flash_release)(struct msm_flash_ctrl_t *);
	int32_t (*camera_flash_off)(struct msm_flash_ctrl_t *,
		struct msm_flash_cfg_data_t *);
	int32_t (*camera_flash_low)(struct msm_flash_ctrl_t *,
		struct msm_flash_cfg_data_t *);
	int32_t (*camera_flash_high)(struct msm_flash_ctrl_t *,
		struct msm_flash_cfg_data_t *);
	int32_t (*camera_flash_query_current)(struct msm_flash_ctrl_t *,
		struct msm_flash_query_data_t *);

};

struct msm_flash_table {
	enum msm_flash_driver_type flash_driver_type;
	struct msm_flash_func_t func_tbl;
};

struct msm_flash_reg_t {
	struct msm_camera_i2c_reg_setting *init_setting;
	struct msm_camera_i2c_reg_setting *off_setting;
	struct msm_camera_i2c_reg_setting *release_setting;
	struct msm_camera_i2c_reg_setting *low_setting;
	struct msm_camera_i2c_reg_setting *high_setting;
};

struct msm_flash_ctrl_t {
	struct msm_camera_i2c_client flash_i2c_client;
	struct msm_sd_subdev msm_sd;
	struct platform_device *pdev;
	struct msm_flash_func_t *func_tbl;
	struct msm_camera_power_ctrl_t power_info;

	/* Switch node to trigger led */
	const char *switch_trigger_name;
	struct led_trigger *switch_trigger;
	uint32_t is_regulator_enabled;

	/* Flash */
	uint32_t flash_num_sources;
	const char *flash_trigger_name[MAX_LED_TRIGGERS];
	struct led_trigger *flash_trigger[MAX_LED_TRIGGERS];
	uint32_t flash_op_current[MAX_LED_TRIGGERS];
	uint32_t flash_max_current[MAX_LED_TRIGGERS];
	uint32_t flash_max_duration[MAX_LED_TRIGGERS];

	/* Torch */
	uint32_t torch_num_sources;
	const char *torch_trigger_name[MAX_LED_TRIGGERS];
	struct led_trigger *torch_trigger[MAX_LED_TRIGGERS];
	uint32_t torch_op_current[MAX_LED_TRIGGERS];
	uint32_t torch_max_current[MAX_LED_TRIGGERS];

	void *data;
	enum msm_camera_device_type_t flash_device_type;
	enum cci_i2c_master_t cci_i2c_master;
	uint32_t subdev_id;
	struct mutex *flash_mutex;
	struct msm_sensor_power_setting_array power_setting_array;

	/* flash driver type */
	enum msm_flash_driver_type flash_driver_type;

	/* flash state */
	enum msm_camera_flash_state_t flash_state;
	int32_t (*platform_flash_init)(struct msm_flash_ctrl_t *flash_ctrl,
		struct msm_flash_cfg_data_t *flash_data);
};

int msm_flash_i2c_probe(struct i2c_client *client,
	const struct i2c_device_id *id);

int msm_flash_probe(struct platform_device *pdev, const void *data);

int32_t msm_flash_create_v4lsubdev(struct platform_device *pdev,
	void *data);
int32_t msm_led_i2c_flash_create_v4lsubdev(void *data);

int32_t msm_led_i2c_trigger_get_subdev_id(struct msm_flash_ctrl_t *fctrl,
	void *arg);

int32_t msm_led_i2c_trigger_config(struct msm_flash_ctrl_t *fctrl,
	void *data);

int msm_flash_led_init(struct msm_flash_ctrl_t *fctrl);
int msm_flash_led_release(struct msm_flash_ctrl_t *fctrl);
int msm_flash_led_off(struct msm_flash_ctrl_t *fctrl);
int msm_flash_led_low(struct msm_flash_ctrl_t *fctrl);
int msm_flash_led_high(struct msm_flash_ctrl_t *fctrl);
int32_t camera_flash_platform_probe(struct platform_device *pdev);

#endif