[linux-2.6-block.git] / include / media / davinci / vpbe_display.h

/*
 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.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 version 2.
 *
 * This program is distributed WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#ifndef VPBE_DISPLAY_H
#define VPBE_DISPLAY_H

/* Header files */
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-fh.h>
#include <media/videobuf2-v4l2.h>
#include <media/videobuf2-dma-contig.h>
#include <media/davinci/vpbe_types.h>
#include <media/davinci/vpbe_osd.h>
#include <media/davinci/vpbe.h>

#define VPBE_DISPLAY_MAX_DEVICES 2

enum vpbe_display_device_id {
	VPBE_DISPLAY_DEVICE_0,
	VPBE_DISPLAY_DEVICE_1
};

#define VPBE_DISPLAY_DRV_NAME	"vpbe-display"

#define VPBE_DISPLAY_MAJOR_RELEASE              1
#define VPBE_DISPLAY_MINOR_RELEASE              0
#define VPBE_DISPLAY_BUILD                      1
#define VPBE_DISPLAY_VERSION_CODE ((VPBE_DISPLAY_MAJOR_RELEASE << 16) | \
	(VPBE_DISPLAY_MINOR_RELEASE << 8)  | \
	VPBE_DISPLAY_BUILD)

#define VPBE_DISPLAY_VALID_FIELD(field)   ((V4L2_FIELD_NONE == field) || \
	 (V4L2_FIELD_ANY == field) || (V4L2_FIELD_INTERLACED == field))

/* Exp ratio numerator and denominator constants */
#define VPBE_DISPLAY_H_EXP_RATIO_N	9
#define VPBE_DISPLAY_H_EXP_RATIO_D	8
#define VPBE_DISPLAY_V_EXP_RATIO_N	6
#define VPBE_DISPLAY_V_EXP_RATIO_D	5

/* Zoom multiplication factor */
#define VPBE_DISPLAY_ZOOM_4X	4
#define VPBE_DISPLAY_ZOOM_2X	2

/* Structures */
struct display_layer_info {
	int enable;
	/* Layer ID used by Display Manager */
	enum osd_layer id;
	struct osd_layer_config config;
	enum osd_zoom_factor h_zoom;
	enum osd_zoom_factor v_zoom;
	enum osd_h_exp_ratio h_exp;
	enum osd_v_exp_ratio v_exp;
};

struct vpbe_disp_buffer {
	struct vb2_v4l2_buffer vb;
	struct list_head list;
};

/* vpbe display object structure */
struct vpbe_layer {
	/* Pointer to the vpbe_display */
	struct vpbe_display *disp_dev;
	/* Pointer pointing to current v4l2_buffer */
	struct vpbe_disp_buffer *cur_frm;
	/* Pointer pointing to next v4l2_buffer */
	struct vpbe_disp_buffer *next_frm;
	/* videobuf specific parameters
	 * Buffer queue used in video-buf
	 */
	struct vb2_queue buffer_queue;
	/* allocator-specific contexts for each plane */
	struct vb2_alloc_ctx *alloc_ctx;
	/* Queue of filled frames */
	struct list_head dma_queue;
	/* Used in video-buf */
	spinlock_t irqlock;
	/* V4l2 specific parameters */
	/* Identifies video device for this layer */
	struct video_device video_dev;
	/* Used to store pixel format */
	struct v4l2_pix_format pix_fmt;
	enum v4l2_field buf_field;
	/* Video layer configuration params */
	struct display_layer_info layer_info;
	/* vpbe specific parameters
	 * enable window for display
	 */
	unsigned char window_enable;
	/* number of open instances of the layer */
	unsigned int usrs;
	/* Indicates id of the field which is being displayed */
	unsigned int field_id;
	/* Identifies device object */
	enum vpbe_display_device_id device_id;
	/* facilitation of ioctl ops lock by v4l2*/
	struct mutex opslock;
	u8 layer_first_int;
};

/* vpbe device structure */
struct vpbe_display {
	/* layer specific parameters */
	/* lock for isr updates to buf layers*/
	spinlock_t dma_queue_lock;
	/* C-Plane offset from start of y-plane */
	unsigned int cbcr_ofst;
	struct vpbe_layer *dev[VPBE_DISPLAY_MAX_DEVICES];
	struct vpbe_device *vpbe_dev;
	struct osd_state *osd_device;
};

struct buf_config_params {
	unsigned char min_numbuffers;
	unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES];
	unsigned int min_bufsize[VPBE_DISPLAY_MAX_DEVICES];
	unsigned int layer_bufsize[VPBE_DISPLAY_MAX_DEVICES];
};

#endif	/* VPBE_DISPLAY_H */
Commit	Line	Data
a2c25b44 MH	1	/*
	2	* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License as
	6	* published by the Free Software Foundation version 2.
	7	*
	8	* This program is distributed WITHOUT ANY WARRANTY of any
	9	* kind, whether express or implied; without even the implied warranty
	10	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*/
	13	#ifndef VPBE_DISPLAY_H
	14	#define VPBE_DISPLAY_H
	15
	16	/* Header files */
	17	#include <linux/videodev2.h>
	18	#include <media/v4l2-common.h>
3d7543b9	19	#include <media/v4l2-fh.h>
2d700715	20	#include <media/videobuf2-v4l2.h>
13fc23d3	21	#include <media/videobuf2-dma-contig.h>
a2c25b44 MH	22	#include <media/davinci/vpbe_types.h>
	23	#include <media/davinci/vpbe_osd.h>
	24	#include <media/davinci/vpbe.h>
	25
	26	#define VPBE_DISPLAY_MAX_DEVICES 2
	27
	28	enum vpbe_display_device_id {
	29	VPBE_DISPLAY_DEVICE_0,
	30	VPBE_DISPLAY_DEVICE_1
	31	};
	32
	33	#define VPBE_DISPLAY_DRV_NAME "vpbe-display"
	34
	35	#define VPBE_DISPLAY_MAJOR_RELEASE 1
	36	#define VPBE_DISPLAY_MINOR_RELEASE 0
	37	#define VPBE_DISPLAY_BUILD 1
	38	#define VPBE_DISPLAY_VERSION_CODE ((VPBE_DISPLAY_MAJOR_RELEASE << 16) \| \
	39	(VPBE_DISPLAY_MINOR_RELEASE << 8) \| \
	40	VPBE_DISPLAY_BUILD)
	41
	42	#define VPBE_DISPLAY_VALID_FIELD(field) ((V4L2_FIELD_NONE == field) \|\| \
	43	(V4L2_FIELD_ANY == field) \|\| (V4L2_FIELD_INTERLACED == field))
	44
	45	/* Exp ratio numerator and denominator constants */
	46	#define VPBE_DISPLAY_H_EXP_RATIO_N 9
	47	#define VPBE_DISPLAY_H_EXP_RATIO_D 8
	48	#define VPBE_DISPLAY_V_EXP_RATIO_N 6
	49	#define VPBE_DISPLAY_V_EXP_RATIO_D 5
	50
	51	/* Zoom multiplication factor */
	52	#define VPBE_DISPLAY_ZOOM_4X 4
	53	#define VPBE_DISPLAY_ZOOM_2X 2
	54
	55	/* Structures */
	56	struct display_layer_info {
	57	int enable;
	58	/* Layer ID used by Display Manager */
	59	enum osd_layer id;
	60	struct osd_layer_config config;
	61	enum osd_zoom_factor h_zoom;
	62	enum osd_zoom_factor v_zoom;
	63	enum osd_h_exp_ratio h_exp;
	64	enum osd_v_exp_ratio v_exp;
	65	};
	66
13fc23d3	67	struct vpbe_disp_buffer {
2d700715	68	struct vb2_v4l2_buffer vb;
13fc23d3 LP	69	struct list_head list;
	70	};
	71
a2c25b44 MH	72	/* vpbe display object structure */
a2c25b44 MH	73	struct vpbe_layer {
a2c25b44 MH	74	/* Pointer to the vpbe_display */
	75	struct vpbe_display *disp_dev;
	76	/* Pointer pointing to current v4l2_buffer */
13fc23d3	77	struct vpbe_disp_buffer *cur_frm;
a2c25b44	78	/* Pointer pointing to next v4l2_buffer */
13fc23d3	79	struct vpbe_disp_buffer *next_frm;
a2c25b44 MH	80	/* videobuf specific parameters
	81	* Buffer queue used in video-buf
	82	*/
13fc23d3 LP	83	struct vb2_queue buffer_queue;
	84	/* allocator-specific contexts for each plane */
	85	struct vb2_alloc_ctx *alloc_ctx;
a2c25b44 MH	86	/* Queue of filled frames */
	87	struct list_head dma_queue;
	88	/* Used in video-buf */
	89	spinlock_t irqlock;
	90	/* V4l2 specific parameters */
	91	/* Identifies video device for this layer */
	92	struct video_device video_dev;
a2c25b44 MH	93	/* Used to store pixel format */
	94	struct v4l2_pix_format pix_fmt;
	95	enum v4l2_field buf_field;
	96	/* Video layer configuration params */
	97	struct display_layer_info layer_info;
	98	/* vpbe specific parameters
	99	* enable window for display
	100	*/
	101	unsigned char window_enable;
	102	/* number of open instances of the layer */
	103	unsigned int usrs;
a2c25b44 MH	104	/* Indicates id of the field which is being displayed */
a2c25b44 MH	105	unsigned int field_id;
a2c25b44 MH	106	/* Identifies device object */
	107	enum vpbe_display_device_id device_id;
	108	/* facilitation of ioctl ops lock by v4l2*/
	109	struct mutex opslock;
	110	u8 layer_first_int;
	111	};
	112
	113	/* vpbe device structure */
	114	struct vpbe_display {
	115	/* layer specific parameters */
	116	/* lock for isr updates to buf layers*/
	117	spinlock_t dma_queue_lock;
	118	/* C-Plane offset from start of y-plane */
	119	unsigned int cbcr_ofst;
	120	struct vpbe_layer *dev[VPBE_DISPLAY_MAX_DEVICES];
	121	struct vpbe_device *vpbe_dev;
	122	struct osd_state *osd_device;
	123	};
	124
a2c25b44 MH	125	struct buf_config_params {
	126	unsigned char min_numbuffers;
	127	unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES];
	128	unsigned int min_bufsize[VPBE_DISPLAY_MAX_DEVICES];
	129	unsigned int layer_bufsize[VPBE_DISPLAY_MAX_DEVICES];
	130	};
	131
	132	#endif /* VPBE_DISPLAY_H */