/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * uvc-gadget control API
 *
 * Copyright (C) 2020 Rockchip Electronics Co., Ltd.
 *
 * Author: Bin Yang <yangbin@rock-chips.com>
 */

#ifndef __UVC_CTRL_H__
#define __UVC_CTRL_H__

#include <stdint.h>
#include <linux/usb/video.h>

#ifdef __cplusplus
extern "C" {
#endif

#define UVC_UNIT_ID_ERR 0
#define UVC_UNIT_ID_CT  1
#define UVC_UNIT_ID_PU  2
#define UVC_UNIT_ID_XU  6

#define U_CUR   0
#define U_MIN   1
#define U_MAX   2
#define U_DEF   3
#define U_RES   4
#define U_SIZE  5

struct uvc_request_ct {
	__u8 scan_mode[U_SIZE];
	__u8 ae_mode[U_SIZE];
	__u8 ae_priority[U_SIZE];
	__u32 exposure_abs[U_SIZE];
	__u8 exposure_rel[U_SIZE];
	__u16 focus_abs[U_SIZE];
	__u16 focus_rel[U_SIZE];
	__u8 focus_auto[U_SIZE];
	__u16 iris_abs[U_SIZE];
	__u16 iris_rel[U_SIZE];
	__u16 zoom_abs[U_SIZE];
	__u8 zoom_rel[U_SIZE][3];
	__u8 pantilt_abs[U_SIZE][8];
	__u8 pantilt_rel[U_SIZE][4];
	__u16 roll_abs[U_SIZE];
	__u16 roll_rel[U_SIZE];
	__u8 privacy[U_SIZE];
};

struct uvc_request_pu {
	__u16 backlight[U_SIZE];
	__u16 brightness[U_SIZE];
	__u16 contrast[U_SIZE];
	__u16 gain[U_SIZE];
	__u8 pl_freq[U_SIZE];
	__u16 hue[U_SIZE];
	__u16 saturation[U_SIZE];
	__u16 sharpness[U_SIZE];
	__u16 gamma[U_SIZE];
	__u16 wb_temp[U_SIZE];
	__u8 wb_temp_auto[U_SIZE];
	__u32 wb_component[U_SIZE];
	__u8 wb_component_auto[U_SIZE];
	__u16 digital_mult[U_SIZE];
	__u16 digital_mult_limit[U_SIZE];
	__u8 hue_auto[U_SIZE];
	__u8 analog_video[U_SIZE];
	__u8 analog_lock[U_SIZE];
};

struct uvc_request_xu {
	__u8 data[60];
};

enum uvc_req_dir {
	USB_TRAN_IN = 0,
	USB_TRAN_OUT,
	USB_TRAN_INFO
};

struct uvc_request_param {
	__u8 entity;
	__u8 req;
	__u8 cs;
	__u8 len;
	__u8 get_len;
	enum uvc_req_dir dir;
};

typedef int(*uvc_ctrl_func_t)(struct uvc_source *,
	struct uvc_request_param *, void *);
int uvc_control_func_register(struct uvc_source *src, uint8_t entity_id,
			      uvc_ctrl_func_t func);
void uvc_control_func_unregister(struct uvc_source *src);


#ifdef __cplusplus
}
#endif

#endif /* __UVC_CTRL_H__ */