include/linux/amlogic/media/vrr/vrr.h

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
 */

#ifndef _AML_VRR_H_
#define _AML_VRR_H_

enum vrr_input_src_e {
	VRR_INPUT_TVIN = 0,
	VRR_INPUT_GPU = 1,
	VRR_INPUT_DOS = 2,
	VRR_INPUT_MAX,
};

enum vrr_output_src_e {
	VRR_OUTPUT_ENCP = 0,
	VRR_OUTPUT_ENCL = 1,
	VRR_OUTPUT_MAX,
};

#define VRR_NAME_LEN_MAX    30
struct vrr_device_s {
	char name[VRR_NAME_LEN_MAX];
	enum vrr_output_src_e output_src;
	unsigned int enable;
	unsigned int vline_max;
	unsigned int vline_min;
	unsigned int vfreq_max;
	unsigned int vfreq_min;
};

struct vrr_notifier_data_s {
	enum vrr_input_src_e input_src;
	unsigned int target_vfreq_num;
	unsigned int target_vfreq_den;
	unsigned int dev_vfreq_max;
	unsigned int dev_vfreq_min;
};

/* **********************************
 * IOCTL define
 * **********************************
 */
#define VRR_IOC_TYPE           'V'
#define VRR_IOC_GET_CAP        0x0
#define VRR_IOC_ENABLE         0x1
#define VRR_IOC_DISABLE        0x2
#define VRR_IOC_GET_EN         0x3

#define VRR_IOC_CMD_GET_CAP   _IOR(VRR_IOC_TYPE, VRR_IOC_GET_CAP, unsigned int)
#define VRR_IOC_CMD_ENABLE    _IO(VRR_IOC_TYPE, VRR_IOC_ENABLE)
#define VRR_IOC_CMD_DISABLE   _IO(VRR_IOC_TYPE, VRR_IOC_DISABLE)
#define VRR_IOC_CMD_GET_EN    _IOR(VRR_IOC_TYPE, VRR_IOC_GET_EN, unsigned int)

/* **********************************
 * NOTIFY define
 * **********************************
 */
/* original event */
#define FRAME_LOCK_EVENT_ON				BIT(0)
#define FRAME_LOCK_EVENT_OFF			BIT(1)
#define FRAME_LOCK_EVENT_VRR_ON_MODE	BIT(2)
#define FRAME_LOCK_EVENT_VRR_OFF_MODE	BIT(3)
#define VRR_EVENT_UPDATE				BIT(4)

/* ************************************************************* */
#ifdef CONFIG_AMLOGIC_MEDIA_VRR
int aml_vrr_state(void);
int aml_vrr_func_en(int flag);

int aml_vrr_register_device(struct vrr_device_s *vrr_dev, int index);
int aml_vrr_unregister_device(int index);
/* atomic notify */
int aml_vrr_atomic_notifier_register(struct notifier_block *nb);
int aml_vrr_atomic_notifier_unregister(struct notifier_block *nb);
int aml_vrr_atomic_notifier_call_chain(unsigned long event, void *v);
#else
static inline int aml_vrr_state(void)
{
	return 0;
}

static inline int aml_vrr_func_en(int flag)
{
	return 0;
}

static inline int aml_vrr_register_device(struct vrr_device_s *vrr_dev,
					  int index)
{
	return 0;
}

static inline int aml_vrr_unregister_device(int index)
{
	return 0;
}

static inline int aml_vrr_atomic_notifier_register(struct notifier_block *nb)
{
	return 0;
}

static inline int aml_vrr_atomic_notifier_unregister(struct notifier_block *nb)
{
	return 0;
}

static inline int aml_vrr_atomic_notifier_call_chain(unsigned long event,
						     void *v)
{
	return 0;
}
#endif

#endif