Release 4.12 include/video/mmp_disp.h

/*
 * linux/include/video/mmp_disp.h
 * Header file for Marvell MMP Display Controller
 *
 * Copyright (C) 2012 Marvell Technology Group Ltd.
 * Authors: Zhou Zhu <zzhu3@marvell.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.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef _MMP_DISP_H_

#define _MMP_DISP_H_
#include <linux/kthread.h>

enum {
	
PIXFMT_UYVY = 0,
	
PIXFMT_VYUY,
	
PIXFMT_YUYV,
	
PIXFMT_YUV422P,
	
PIXFMT_YVU422P,
	
PIXFMT_YUV420P,
	
PIXFMT_YVU420P,
	
PIXFMT_RGB565 = 0x100,
	
PIXFMT_BGR565,
	
PIXFMT_RGB1555,
	
PIXFMT_BGR1555,
	
PIXFMT_RGB888PACK,
	
PIXFMT_BGR888PACK,
	
PIXFMT_RGB888UNPACK,
	
PIXFMT_BGR888UNPACK,
	
PIXFMT_RGBA888,
	
PIXFMT_BGRA888,
	
PIXFMT_RGB666, /* for output usage */
	
PIXFMT_PSEUDOCOLOR = 0x200,
};



static inline int pixfmt_to_stride(int pix_fmt)
{
	switch (pix_fmt) {
	case PIXFMT_RGB565:
	case PIXFMT_BGR565:
	case PIXFMT_RGB1555:
	case PIXFMT_BGR1555:
	case PIXFMT_UYVY:
	case PIXFMT_VYUY:
	case PIXFMT_YUYV:
		return 2;
	case PIXFMT_RGB888UNPACK:
	case PIXFMT_BGR888UNPACK:
	case PIXFMT_RGBA888:
	case PIXFMT_BGRA888:
		return 4;
	case PIXFMT_RGB888PACK:
	case PIXFMT_BGR888PACK:
		return 3;
	case PIXFMT_YUV422P:
	case PIXFMT_YVU422P:
	case PIXFMT_YUV420P:
	case PIXFMT_YVU420P:
	case PIXFMT_PSEUDOCOLOR:
		return 1;
	default:
		return 0;
	}
}

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/* parameters used by path/overlay */
/* overlay related para: win/addr */

struct mmp_win {
	/* position/size of window */
	
u16	xsrc;
	
u16	ysrc;
	
u16	xdst;
	
u16	ydst;
	
u16	xpos;
	
u16	ypos;
	
u16	left_crop;
	
u16	right_crop;
	
u16	up_crop;
	
u16	bottom_crop;
	
int	pix_fmt;
	/*
         * pitch[0]: graphics/video layer line length or y pitch
         * pitch[1]/pitch[2]: video u/v pitch if non-zero
         */
	
u32	pitch[3];
};


struct mmp_addr {
	/* phys address */
	
u32	phys[6];
};

/* path related para: mode */

struct mmp_mode {
	
const char *name;
	
u32 refresh;
	
u32 xres;
	
u32 yres;
	
u32 left_margin;
	
u32 right_margin;
	
u32 upper_margin;
	
u32 lower_margin;
	
u32 hsync_len;
	
u32 vsync_len;
	
u32 hsync_invert;
	
u32 vsync_invert;
	
u32 invert_pixclock;
	
u32 pixclock_freq;
	
int pix_fmt_out;
};

/* main structures */
struct mmp_path;
struct mmp_overlay;
struct mmp_panel;

/* status types */
enum {
	
MMP_OFF = 0,
	
MMP_ON,
};



static inline const char *stat_name(int stat)
{
	switch (stat) {
	case MMP_OFF:
		return "OFF";
	case MMP_ON:
		return "ON";
	default:
		return "UNKNOWNSTAT";
	}
}

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struct mmp_overlay_ops {
	/* should be provided by driver */
	
void (*set_fetch)(struct mmp_overlay *overlay, int fetch_id);
	
void (*set_onoff)(struct mmp_overlay *overlay, int status);
	
void (*set_win)(struct mmp_overlay *overlay, struct mmp_win *win);
	
int (*set_addr)(struct mmp_overlay *overlay, struct mmp_addr *addr);
};

/* overlay describes a z-order indexed slot in each path. */

struct mmp_overlay {
	
int id;
	
const char *name;
	
struct mmp_path *path;

	/* overlay info: private data */
	
int dmafetch_id;
	
struct mmp_addr addr;
	
struct mmp_win win;

	/* state */
	
int open_count;
	
int status;
	
struct mutex access_ok;

	
struct mmp_overlay_ops *ops;
};

/* panel type */
enum {
	
PANELTYPE_ACTIVE = 0,
	
PANELTYPE_SMART,
	
PANELTYPE_TV,
	
PANELTYPE_DSI_CMD,
	
PANELTYPE_DSI_VIDEO,
};


struct mmp_panel {
	/* use node to register to list */
	
struct list_head node;
	
const char *name;
	/* path name used to connect to proper path configed */
	
const char *plat_path_name;
	
struct device *dev;
	
int panel_type;
	
void *plat_data;
	
int (*get_modelist)(struct mmp_panel *panel,
			struct mmp_mode **modelist);
	
void (*set_mode)(struct mmp_panel *panel,
			struct mmp_mode *mode);
	
void (*set_onoff)(struct mmp_panel *panel,
			int status);
};


struct mmp_path_ops {
	
int (*check_status)(struct mmp_path *path);
	
struct mmp_overlay *(*get_overlay)(struct mmp_path *path,
			int overlay_id);
	
int (*get_modelist)(struct mmp_path *path,
			struct mmp_mode **modelist);

	/* follow ops should be provided by driver */
	
void (*set_mode)(struct mmp_path *path, struct mmp_mode *mode);
	
void (*set_onoff)(struct mmp_path *path, int status);
	/* todo: add query */
};

/* path output types */
enum {
	
PATH_OUT_PARALLEL,
	
PATH_OUT_DSI,
	
PATH_OUT_HDMI,
};

/* path is main part of mmp-disp */

struct mmp_path {
	/* use node to register to list */
	
struct list_head node;

	/* init data */
	
struct device *dev;

	
int id;
	
const char *name;
	
int output_type;
	
struct mmp_panel *panel;
	
void *plat_data;

	/* dynamic use */
	
struct mmp_mode mode;

	/* state */
	
int open_count;
	
int status;
	
struct mutex access_ok;

	
struct mmp_path_ops ops;

	/* layers */
	
int overlay_num;
	
struct mmp_overlay overlays[0];
};

extern struct mmp_path *mmp_get_path(const char *name);


static inline void mmp_path_set_mode(struct mmp_path *path,
		struct mmp_mode *mode)
{
	if (path)
		path->ops.set_mode(path, mode);
}
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static inline void mmp_path_set_onoff(struct mmp_path *path, int status)
{
	if (path)
		path->ops.set_onoff(path, status);
}
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static inline int mmp_path_get_modelist(struct mmp_path *path,
		struct mmp_mode **modelist)
{
	if (path)
		return path->ops.get_modelist(path, modelist);
	return 0;
}
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static inline struct mmp_overlay *mmp_path_get_overlay(
		struct mmp_path *path, int overlay_id)
{
	if (path)
		return path->ops.get_overlay(path, overlay_id);
	return NULL;
}
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static inline void mmp_overlay_set_fetch(struct mmp_overlay *overlay,
		int fetch_id)
{
	if (overlay)
		overlay->ops->set_fetch(overlay, fetch_id);
}
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static inline void mmp_overlay_set_onoff(struct mmp_overlay *overlay,
		int status)
{
	if (overlay)
		overlay->ops->set_onoff(overlay, status);
}
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static inline void mmp_overlay_set_win(struct mmp_overlay *overlay,
		struct mmp_win *win)
{
	if (overlay)
		overlay->ops->set_win(overlay, win);
}
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static inline int mmp_overlay_set_addr(struct mmp_overlay *overlay,
		struct mmp_addr *addr)
{
	if (overlay)
		return overlay->ops->set_addr(overlay, addr);
	return 0;
}

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/*
 * driver data is set from each detailed ctrl driver for path usage
 * it defined a common interface that plat driver need to implement
 */

struct mmp_path_info {
	/* driver data, set when registed*/
	
const char *name;
	
struct device *dev;
	
int id;
	
int output_type;
	
int overlay_num;
	
void (*set_mode)(struct mmp_path *path, struct mmp_mode *mode);
	
void (*set_onoff)(struct mmp_path *path, int status);
	
struct mmp_overlay_ops *overlay_ops;
	
void *plat_data;
};

extern struct mmp_path *mmp_register_path(
		struct mmp_path_info *info);
extern void mmp_unregister_path(struct mmp_path *path);
extern void mmp_register_panel(struct mmp_panel *panel);
extern void mmp_unregister_panel(struct mmp_panel *panel);

/* defintions for platform data */
/* interface for buffer driver */

struct mmp_buffer_driver_mach_info {
	
const char	*name;
	
const char	*path_name;
	
int	overlay_id;
	
int	dmafetch_id;
	
int	default_pixfmt;
};

/* interface for controllers driver */

struct mmp_mach_path_config {
	
const char *name;
	
int overlay_num;
	
int output_type;
	
u32 path_config;
	
u32 link_config;
	
u32 dsi_rbswap;
};


struct mmp_mach_plat_info {
	
const char *name;
	
const char *clk_name;
	
int path_num;
	
struct mmp_mach_path_config *paths;
};

/* interface for panel drivers */

struct mmp_mach_panel_info {
	
const char *name;
	
void (*plat_set_onoff)(int status);
	
const char *plat_path_name;
};
#endif	/* _MMP_DISP_H_ */
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Directory: include/video

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