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/*
* shmob_drm.h -- SH Mobile DRM driver
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_H__
#define __SHMOB_DRM_H__
#include <linux/kernel.h>
#include <drm/drm_mode.h>
struct sh_mobile_meram_cfg;
struct sh_mobile_meram_info;
enum shmob_drm_clk_source {
SHMOB_DRM_CLK_BUS,
SHMOB_DRM_CLK_PERIPHERAL,
SHMOB_DRM_CLK_EXTERNAL,
};
enum shmob_drm_interface {
SHMOB_DRM_IFACE_RGB8, /* 24bpp, 8:8:8 */
SHMOB_DRM_IFACE_RGB9, /* 18bpp, 9:9 */
SHMOB_DRM_IFACE_RGB12A, /* 24bpp, 12:12 */
SHMOB_DRM_IFACE_RGB12B, /* 12bpp */
SHMOB_DRM_IFACE_RGB16, /* 16bpp */
SHMOB_DRM_IFACE_RGB18, /* 18bpp */
SHMOB_DRM_IFACE_RGB24, /* 24bpp */
SHMOB_DRM_IFACE_YUV422, /* 16bpp */
SHMOB_DRM_IFACE_SYS8A, /* 24bpp, 8:8:8 */
SHMOB_DRM_IFACE_SYS8B, /* 18bpp, 8:8:2 */
SHMOB_DRM_IFACE_SYS8C, /* 18bpp, 2:8:8 */
SHMOB_DRM_IFACE_SYS8D, /* 16bpp, 8:8 */
SHMOB_DRM_IFACE_SYS9, /* 18bpp, 9:9 */
SHMOB_DRM_IFACE_SYS12, /* 24bpp, 12:12 */
SHMOB_DRM_IFACE_SYS16A, /* 16bpp */
SHMOB_DRM_IFACE_SYS16B, /* 18bpp, 16:2 */
SHMOB_DRM_IFACE_SYS16C, /* 18bpp, 2:16 */
SHMOB_DRM_IFACE_SYS18, /* 18bpp */
SHMOB_DRM_IFACE_SYS24, /* 24bpp */
};
struct shmob_drm_backlight_data {
const char *name;
int max_brightness;
int (*get_brightness)(void);
int (*set_brightness)(int brightness);
};
struct shmob_drm_panel_data {
unsigned int width_mm; /* Panel width in mm */
unsigned int height_mm; /* Panel height in mm */
struct drm_mode_modeinfo mode;
};
struct shmob_drm_sys_interface_data {
unsigned int read_latch:6;
unsigned int read_setup:8;
unsigned int read_cycle:8;
unsigned int read_strobe:8;
unsigned int write_setup:8;
unsigned int write_cycle:8;
unsigned int write_strobe:8;
unsigned int cs_setup:3;
unsigned int vsync_active_high:1;
unsigned int vsync_dir_input:1;
};
#define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
#define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
#define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
#define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
#define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
struct shmob_drm_interface_data {
enum shmob_drm_interface interface;
struct shmob_drm_sys_interface_data sys;
unsigned int clk_div;
unsigned int flags;
};
struct shmob_drm_platform_data {
enum shmob_drm_clk_source clk_source;
struct shmob_drm_interface_data iface;
struct shmob_drm_panel_data panel;
struct shmob_drm_backlight_data backlight;
const struct sh_mobile_meram_cfg *meram;
};
#endif /* __SHMOB_DRM_H__ */