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NAME	SIZE	ACTIONS
📁 davinci		[ DEL ]
📁 drv-intf		[ DEL ]
📁 i2c		[ DEL ]
📁 tpg		[ DEL ]
📄 cec-notifier.h	6,678 B	[ EDIT ] \| [ DEL ]
📄 cec-pin.h	2,947 B	[ EDIT ] \| [ DEL ]
📄 cec.h	18,397 B	[ EDIT ] \| [ DEL ]
📄 demux.h	23,237 B	[ EDIT ] \| [ DEL ]
📄 dmxdev.h	6,034 B	[ EDIT ] \| [ DEL ]
📄 dvb-usb-ids.h	18,204 B	[ EDIT ] \| [ DEL ]
📄 dvb_ca_en50221.h	4,455 B	[ EDIT ] \| [ DEL ]
📄 dvb_demux.h	11,033 B	[ EDIT ] \| [ DEL ]
📄 dvb_frontend.h	29,701 B	[ EDIT ] \| [ DEL ]
📄 dvb_math.h	1,811 B	[ EDIT ] \| [ DEL ]
📄 dvb_net.h	2,583 B	[ EDIT ] \| [ DEL ]
📄 dvb_ringbuffer.h	8,524 B	[ EDIT ] \| [ DEL ]
📄 dvb_vb2.h	7,838 B	[ EDIT ] \| [ DEL ]
📄 dvbdev.h	15,089 B	[ EDIT ] \| [ DEL ]
📄 frame_vector.h	1,447 B	[ EDIT ] \| [ DEL ]
📄 imx.h	396 B	[ EDIT ] \| [ DEL ]
📄 media-device.h	16,113 B	[ EDIT ] \| [ DEL ]
📄 media-devnode.h	5,814 B	[ EDIT ] \| [ DEL ]
📄 media-entity.h	35,421 B	[ EDIT ] \| [ DEL ]
📄 rc-core.h	13,211 B	[ EDIT ] \| [ DEL ]
📄 rc-map.h	12,806 B	[ EDIT ] \| [ DEL ]
📄 rcar-fcp.h	1,342 B	[ EDIT ] \| [ DEL ]
📄 soc_camera.h	13,300 B	[ EDIT ] \| [ DEL ]
📄 tuner-types.h	7,723 B	[ EDIT ] \| [ DEL ]
📄 tuner.h	9,059 B	[ EDIT ] \| [ DEL ]
📄 tveeprom.h	3,370 B	[ EDIT ] \| [ DEL ]
📄 v4l2-async.h	7,649 B	[ EDIT ] \| [ DEL ]
📄 v4l2-clk.h	2,144 B	[ EDIT ] \| [ DEL ]
📄 v4l2-common.h	16,538 B	[ EDIT ] \| [ DEL ]
📄 v4l2-ctrls.h	39,942 B	[ EDIT ] \| [ DEL ]
📄 v4l2-dev.h	16,109 B	[ EDIT ] \| [ DEL ]
📄 v4l2-device.h	18,127 B	[ EDIT ] \| [ DEL ]
📄 v4l2-dv-timings.h	8,887 B	[ EDIT ] \| [ DEL ]
📄 v4l2-event.h	6,277 B	[ EDIT ] \| [ DEL ]
📄 v4l2-fh.h	4,759 B	[ EDIT ] \| [ DEL ]
📄 v4l2-flash-led-class.h	6,034 B	[ EDIT ] \| [ DEL ]
📄 v4l2-fwnode.h	14,184 B	[ EDIT ] \| [ DEL ]
📄 v4l2-image-sizes.h	864 B	[ EDIT ] \| [ DEL ]
📄 v4l2-ioctl.h	32,669 B	[ EDIT ] \| [ DEL ]
📄 v4l2-mc.h	8,213 B	[ EDIT ] \| [ DEL ]
📄 v4l2-mediabus.h	6,234 B	[ EDIT ] \| [ DEL ]
📄 v4l2-mem2mem.h	20,186 B	[ EDIT ] \| [ DEL ]
📄 v4l2-rect.h	4,650 B	[ EDIT ] \| [ DEL ]
📄 v4l2-subdev.h	41,579 B	[ EDIT ] \| [ DEL ]
📄 videobuf-core.h	7,148 B	[ EDIT ] \| [ DEL ]
📄 videobuf-dma-contig.h	1,062 B	[ EDIT ] \| [ DEL ]
📄 videobuf-dma-sg.h	3,009 B	[ EDIT ] \| [ DEL ]
📄 videobuf-vmalloc.h	1,319 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-core.h	45,110 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-dma-contig.h	866 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-dma-sg.h	696 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-dvb.h	1,863 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-memops.h	1,101 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-v4l2.h	10,719 B	[ EDIT ] \| [ DEL ]
📄 videobuf2-vmalloc.h	509 B	[ EDIT ] \| [ DEL ]
📄 vsp1.h	3,288 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: v4l2-flash-led-class.h

/*
 * V4L2 flash LED sub-device registration helpers.
 *
 *	Copyright (C) 2015 Samsung Electronics Co., Ltd
 *	Author: Jacek Anaszewski <j.anaszewski@samsung.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 _V4L2_FLASH_H
#define _V4L2_FLASH_H

#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>

struct led_classdev_flash;
struct led_classdev;
struct v4l2_flash;
enum led_brightness;

/**
 * struct v4l2_flash_ctrl_data - flash control initialization data, filled
 *				basing on the features declared by the LED flash
 *				class driver in the v4l2_flash_config
 * @config:	initialization data for a control
 * @cid:	contains v4l2 flash control id if the config
 *		field was initialized, 0 otherwise
 */
struct v4l2_flash_ctrl_data {
	struct v4l2_ctrl_config config;
	u32 cid;
};

/**
 * struct v4l2_flash_ops - V4L2 flash operations
 *
 * @external_strobe_set: Setup strobing the flash by hardware pin state
 *	assertion.
 * @intensity_to_led_brightness: Convert intensity to brightness in a device
 *	specific manner
 * @led_brightness_to_intensity: convert brightness to intensity in a device
 *	specific manner.
 */
struct v4l2_flash_ops {
	int (*external_strobe_set)(struct v4l2_flash *v4l2_flash,
					bool enable);
	enum led_brightness (*intensity_to_led_brightness)
		(struct v4l2_flash *v4l2_flash, s32 intensity);
	s32 (*led_brightness_to_intensity)
		(struct v4l2_flash *v4l2_flash, enum led_brightness);
};

/**
 * struct v4l2_flash_config - V4L2 Flash sub-device initialization data
 * @dev_name:			the name of the media entity,
 *				unique in the system
 * @intensity:			non-flash strobe constraints for the LED
 * @flash_faults:		bitmask of flash faults that the LED flash class
 *				device can report; corresponding LED_FAULT* bit
 *				definitions are available in the header file
 *				<linux/led-class-flash.h>
 * @has_external_strobe:	external strobe capability
 */
struct v4l2_flash_config {
	char dev_name[32];
	struct led_flash_setting intensity;
	u32 flash_faults;
	unsigned int has_external_strobe:1;
};

/**
 * struct v4l2_flash - Flash sub-device context
 * @fled_cdev:		LED flash class device controlled by this sub-device
 * @iled_cdev:		LED class device representing indicator LED associated
 *			with the LED flash class device
 * @ops:		V4L2 specific flash ops
 * @sd:			V4L2 sub-device
 * @hdl:		flash controls handler
 * @ctrls:		array of pointers to controls, whose values define
 *			the sub-device state
 */
struct v4l2_flash {
	struct led_classdev_flash *fled_cdev;
	struct led_classdev *iled_cdev;
	const struct v4l2_flash_ops *ops;

struct v4l2_subdev sd;
	struct v4l2_ctrl_handler hdl;
	struct v4l2_ctrl **ctrls;
};

/**
 * v4l2_subdev_to_v4l2_flash - Returns a &struct v4l2_flash from the
 * &struct v4l2_subdev embedded on it.
 *
 * @sd: pointer to &struct v4l2_subdev
 */
static inline struct v4l2_flash *v4l2_subdev_to_v4l2_flash(
							struct v4l2_subdev *sd)
{
	return container_of(sd, struct v4l2_flash, sd);
}

/**
 * v4l2_ctrl_to_v4l2_flash - Returns a &struct v4l2_flash from the
 * &struct v4l2_ctrl embedded on it.
 *
 * @c: pointer to &struct v4l2_ctrl
 */
static inline struct v4l2_flash *v4l2_ctrl_to_v4l2_flash(struct v4l2_ctrl *c)
{
	return container_of(c->handler, struct v4l2_flash, hdl);
}

#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)
/**
 * v4l2_flash_init - initialize V4L2 flash led sub-device
 * @dev:	flash device, e.g. an I2C device
 * @fwn:	fwnode_handle of the LED, may be NULL if the same as device's
 * @fled_cdev:	LED flash class device to wrap
 * @ops:	V4L2 Flash device ops
 * @config:	initialization data for V4L2 Flash sub-device
 *
 * Create V4L2 Flash sub-device wrapping given LED subsystem device.
 * The ops pointer is stored by the V4L2 flash framework. No
 * references are held to config nor its contents once this function
 * has returned.
 *
 * Returns: A valid pointer, or, when an error occurs, the return
 * value is encoded using ERR_PTR(). Use IS_ERR() to check and
 * PTR_ERR() to obtain the numeric return value.
 */
struct v4l2_flash *v4l2_flash_init(
	struct device *dev, struct fwnode_handle *fwn,
	struct led_classdev_flash *fled_cdev,
	const struct v4l2_flash_ops *ops, struct v4l2_flash_config *config);

/**
 * v4l2_flash_indicator_init - initialize V4L2 indicator sub-device
 * @dev:	flash device, e.g. an I2C device
 * @fwn:	fwnode_handle of the LED, may be NULL if the same as device's
 * @iled_cdev:	LED flash class device representing the indicator LED
 * @config:	initialization data for V4L2 Flash sub-device
 *
 * Create V4L2 Flash sub-device wrapping given LED subsystem device.
 * The ops pointer is stored by the V4L2 flash framework. No
 * references are held to config nor its contents once this function
 * has returned.
 *
 * Returns: A valid pointer, or, when an error occurs, the return
 * value is encoded using ERR_PTR(). Use IS_ERR() to check and
 * PTR_ERR() to obtain the numeric return value.
 */
struct v4l2_flash *v4l2_flash_indicator_init(
	struct device *dev, struct fwnode_handle *fwn,
	struct led_classdev *iled_cdev, struct v4l2_flash_config *config);

/**
 * v4l2_flash_release - release V4L2 Flash sub-device
 * @v4l2_flash: the V4L2 Flash sub-device to release
 *
 * Release V4L2 Flash sub-device.
 */
void v4l2_flash_release(struct v4l2_flash *v4l2_flash);

#else
static inline struct v4l2_flash *v4l2_flash_init(
	struct device *dev, struct fwnode_handle *fwn,
	struct led_classdev_flash *fled_cdev,
	const struct v4l2_flash_ops *ops, struct v4l2_flash_config *config)
{
	return NULL;
}

static inline struct v4l2_flash *v4l2_flash_indicator_init(
	struct device *dev, struct fwnode_handle *fwn,
	struct led_classdev *iled_cdev, struct v4l2_flash_config *config)
{
	return NULL;
}

static inline void v4l2_flash_release(struct v4l2_flash *v4l2_flash)
{
}
#endif /* CONFIG_V4L2_FLASH_LED_CLASS */

#endif /* _V4L2_FLASH_H */