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