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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Rockchip Electronics Co. Ltd.
*
* Author: Zorro Liu <zorro.liu@rock-chips.com>
*/
#ifndef __EBC_DEV_H__
#define __EBC_DEV_H__
#include <linux/notifier.h>
/*
* max support panel size 2232x1680
* ebc module display buf use 4bit per pixel
* eink module display buf use 8bit per pixel
* ebc module direct mode display buf use 2bit per pixel
*/
#define EBC_FB_SIZE 0x200000 /* 2M */
#define EINK_FB_SIZE 0x400000 /* 4M */
#define DIRECT_FB_SIZE 0x100000 /* 1M */
#define MAX_FB_NUM 4
#define EBC_SUCCESS (0)
#define EBC_ERROR (-1)
/*
* ebc status notify
*/
#define EBC_OFF (0)
#define EBC_ON (1)
#define EBC_FB_BLANK (2)
#define EBC_FB_UNBLANK (3)
/*
* ebc system ioctl command
*/
#define EBC_GET_BUFFER (0x7000)
#define EBC_SEND_BUFFER (0x7001)
#define EBC_GET_BUFFER_INFO (0x7002)
#define EBC_SET_FULL_MODE_NUM (0x7003)
#define EBC_ENABLE_OVERLAY (0x7004)
#define EBC_DISABLE_OVERLAY (0x7005)
#define EBC_GET_OSD_BUFFER (0x7006)
#define EBC_SEND_OSD_BUFFER (0x7007)
/*
* IMPORTANT: Those values is corresponding to android hardware program,
* so *FORBID* to changes bellow values, unless you know what you're doing.
* And if you want to add new refresh modes, please appended to the tail.
*/
enum panel_refresh_mode {
EPD_AUTO = 0,
EPD_OVERLAY = 1,
EPD_FULL_GC16 = 2,
EPD_FULL_GL16 = 3,
EPD_FULL_GLR16 = 4,
EPD_FULL_GLD16 = 5,
EPD_FULL_GCC16 = 6,
EPD_PART_GC16 = 7,
EPD_PART_GL16 = 8,
EPD_PART_GLR16 = 9,
EPD_PART_GLD16 = 10,
EPD_PART_GCC16 = 11,
EPD_A2 = 12,
EPD_DU = 13,
EPD_RESET = 14,
EPD_SUSPEND = 15,
EPD_RESUME = 16,
EPD_POWER_OFF = 17,
EPD_PART_EINK = 18,
EPD_FULL_EINK = 19,
};
/*
* IMPORTANT: android hardware use struct, so *FORBID* to changes this, unless you know what you're doing.
*/
struct ebc_buf_info {
int offset;
int epd_mode;
int height;
int width;
int panel_color;
int win_x1;
int win_y1;
int win_x2;
int win_y2;
int width_mm;
int height_mm;
};
#if IS_ENABLED(CONFIG_ROCKCHIP_EBC_DEV)
int ebc_register_notifier(struct notifier_block *nb);
int ebc_unregister_notifier(struct notifier_block *nb);
int ebc_notify(unsigned long event);
#else
static inline int ebc_register_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int ebc_unregister_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int ebc_notify(unsigned long event)
{
return 0;
}
#endif
#endif
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