[mirror_ubuntu-artful-kernel.git] / drivers / media / platform / davinci / vpif_capture.h

/*
 * Copyright (C) 2009 Texas Instruments Inc
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef VPIF_CAPTURE_H
#define VPIF_CAPTURE_H

#ifdef __KERNEL__

/* Header files */
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/videobuf2-dma-contig.h>
#include <media/davinci/vpif_types.h>

#include "vpif.h"

/* Macros */
#define VPIF_CAPTURE_VERSION		"0.0.2"

#define VPIF_VALID_FIELD(field)		(((V4L2_FIELD_ANY == field) || \
	(V4L2_FIELD_NONE == field)) || \
	(((V4L2_FIELD_INTERLACED == field) || \
	(V4L2_FIELD_SEQ_TB == field)) || \
	(V4L2_FIELD_SEQ_BT == field)))

#define VPIF_CAPTURE_MAX_DEVICES	2
#define VPIF_VIDEO_INDEX		0
#define VPIF_NUMBER_OF_OBJECTS		1

/* Enumerated data type to give id to each device per channel */
enum vpif_channel_id {
	VPIF_CHANNEL0_VIDEO = 0,
	VPIF_CHANNEL1_VIDEO,
};

struct video_obj {
	enum v4l2_field buf_field;
	/* Currently selected or default standard */
	v4l2_std_id stdid;
	struct v4l2_dv_timings dv_timings;
	/* This is to track the last input that is passed to application */
	u32 input_idx;
};

struct vpif_cap_buffer {
	struct vb2_buffer vb;
	struct list_head list;
};

struct common_obj {
	/* Pointer pointing to current v4l2_buffer */
	struct vpif_cap_buffer *cur_frm;
	/* Pointer pointing to current v4l2_buffer */
	struct vpif_cap_buffer *next_frm;
	/*
	 * This field keeps track of type of buffer exchange mechanism
	 * user has selected
	 */
	enum v4l2_memory memory;
	/* Used to store pixel format */
	struct v4l2_format fmt;
	/* 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;
	/* lock used to access this structure */
	struct mutex lock;
	/* number of users performing IO */
	u32 io_usrs;
	/* Indicates whether streaming started */
	u8 started;
	/* Function pointer to set the addresses */
	void (*set_addr) (unsigned long, unsigned long, unsigned long,
			  unsigned long);
	/* offset where Y top starts from the starting of the buffer */
	u32 ytop_off;
	/* offset where Y bottom starts from the starting of the buffer */
	u32 ybtm_off;
	/* offset where C top starts from the starting of the buffer */
	u32 ctop_off;
	/* offset where C bottom starts from the starting of the buffer */
	u32 cbtm_off;
	/* Indicates width of the image data */
	u32 width;
	/* Indicates height of the image data */
	u32 height;
};

struct channel_obj {
	/* Identifies video device for this channel */
	struct video_device *video_dev;
	/* Used to keep track of state of the priority */
	struct v4l2_prio_state prio;
	/* number of open instances of the channel */
	int usrs;
	/* Indicates id of the field which is being displayed */
	u32 field_id;
	/* flag to indicate whether decoder is initialized */
	u8 initialized;
	/* Identifies channel */
	enum vpif_channel_id channel_id;
	/* index into sd table */
	int curr_sd_index;
	/* ptr to current sub device information */
	struct vpif_subdev_info *curr_subdev_info;
	/* vpif configuration params */
	struct vpif_params vpifparams;
	/* common object array */
	struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
	/* video object */
	struct video_obj video;
};

/* File handle structure */
struct vpif_fh {
	/* pointer to channel object for opened device */
	struct channel_obj *channel;
	/* Indicates whether this file handle is doing IO */
	u8 io_allowed[VPIF_NUMBER_OF_OBJECTS];
	/* Used to keep track priority of this instance */
	enum v4l2_priority prio;
	/* Used to indicate channel is initialize or not */
	u8 initialized;
};

struct vpif_device {
	struct v4l2_device v4l2_dev;
	struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
	struct v4l2_subdev **sd;
};

struct vpif_config_params {
	u8 min_numbuffers;
	u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
	s8 device_type;
	u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
	u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
	u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
	u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
	u8 max_device_type;
};

#endif				/* End of __KERNEL__ */
#endif				/* VPIF_CAPTURE_H */
Commit	Line	Data
6ffefff5 MK	1	/*
	2	* Copyright (C) 2009 Texas Instruments Inc
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*/
	18
	19	#ifndef VPIF_CAPTURE_H
	20	#define VPIF_CAPTURE_H
	21
	22	#ifdef __KERNEL__
	23
	24	/* Header files */
	25	#include <linux/videodev2.h>
6ffefff5 MK	26	#include <media/v4l2-common.h>
6ffefff5 MK	27	#include <media/v4l2-device.h>
60aa38d8	28	#include <media/videobuf2-dma-contig.h>
e13c692b	29	#include <media/davinci/vpif_types.h>
6ffefff5 MK	30
	31	#include "vpif.h"
	32
	33	/* Macros */
64dc3c1a	34	#define VPIF_CAPTURE_VERSION "0.0.2"
6ffefff5 MK	35
	36	#define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) \|\| \
	37	(V4L2_FIELD_NONE == field)) \|\| \
	38	(((V4L2_FIELD_INTERLACED == field) \|\| \
	39	(V4L2_FIELD_SEQ_TB == field)) \|\| \
	40	(V4L2_FIELD_SEQ_BT == field)))
	41
	42	#define VPIF_CAPTURE_MAX_DEVICES 2
	43	#define VPIF_VIDEO_INDEX 0
	44	#define VPIF_NUMBER_OF_OBJECTS 1
	45
	46	/* Enumerated data type to give id to each device per channel */
	47	enum vpif_channel_id {
	48	VPIF_CHANNEL0_VIDEO = 0,
	49	VPIF_CHANNEL1_VIDEO,
	50	};
	51
	52	struct video_obj {
	53	enum v4l2_field buf_field;
	54	/* Currently selected or default standard */
	55	v4l2_std_id stdid;
0598c17b	56	struct v4l2_dv_timings dv_timings;
6ffefff5 MK	57	/* This is to track the last input that is passed to application */
	58	u32 input_idx;
	59	};
	60
60aa38d8 LP	61	struct vpif_cap_buffer {
	62	struct vb2_buffer vb;
	63	struct list_head list;
	64	};
	65
6ffefff5 MK	66	struct common_obj {
6ffefff5 MK	67	/* Pointer pointing to current v4l2_buffer */
60aa38d8	68	struct vpif_cap_buffer *cur_frm;
6ffefff5	69	/* Pointer pointing to current v4l2_buffer */
60aa38d8	70	struct vpif_cap_buffer *next_frm;
6ffefff5 MK	71	/*
	72	* This field keeps track of type of buffer exchange mechanism
	73	* user has selected
	74	*/
	75	enum v4l2_memory memory;
	76	/* Used to store pixel format */
	77	struct v4l2_format fmt;
	78	/* Buffer queue used in video-buf */
60aa38d8 LP	79	struct vb2_queue buffer_queue;
	80	/* allocator-specific contexts for each plane */
	81	struct vb2_alloc_ctx *alloc_ctx;
6ffefff5 MK	82	/* Queue of filled frames */
	83	struct list_head dma_queue;
	84	/* Used in video-buf */
	85	spinlock_t irqlock;
	86	/* lock used to access this structure */
	87	struct mutex lock;
	88	/* number of users performing IO */
	89	u32 io_usrs;
	90	/* Indicates whether streaming started */
	91	u8 started;
	92	/* Function pointer to set the addresses */
	93	void (*set_addr) (unsigned long, unsigned long, unsigned long,
	94	unsigned long);
	95	/* offset where Y top starts from the starting of the buffer */
	96	u32 ytop_off;
	97	/* offset where Y bottom starts from the starting of the buffer */
	98	u32 ybtm_off;
	99	/* offset where C top starts from the starting of the buffer */
	100	u32 ctop_off;
	101	/* offset where C bottom starts from the starting of the buffer */
	102	u32 cbtm_off;
	103	/* Indicates width of the image data */
	104	u32 width;
	105	/* Indicates height of the image data */
	106	u32 height;
	107	};
	108
	109	struct channel_obj {
	110	/* Identifies video device for this channel */
	111	struct video_device *video_dev;
	112	/* Used to keep track of state of the priority */
	113	struct v4l2_prio_state prio;
	114	/* number of open instances of the channel */
	115	int usrs;
	116	/* Indicates id of the field which is being displayed */
	117	u32 field_id;
	118	/* flag to indicate whether decoder is initialized */
	119	u8 initialized;
	120	/* Identifies channel */
	121	enum vpif_channel_id channel_id;
	122	/* index into sd table */
	123	int curr_sd_index;
	124	/* ptr to current sub device information */
	125	struct vpif_subdev_info *curr_subdev_info;
	126	/* vpif configuration params */
	127	struct vpif_params vpifparams;
	128	/* common object array */
	129	struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
	130	/* video object */
	131	struct video_obj video;
	132	};
	133
	134	/* File handle structure */
	135	struct vpif_fh {
	136	/* pointer to channel object for opened device */
	137	struct channel_obj *channel;
	138	/* Indicates whether this file handle is doing IO */
	139	u8 io_allowed[VPIF_NUMBER_OF_OBJECTS];
	140	/* Used to keep track priority of this instance */
	141	enum v4l2_priority prio;
	142	/* Used to indicate channel is initialize or not */
	143	u8 initialized;
	144	};
	145
146	struct vpif_device {
147	struct v4l2_device v4l2_dev;
148	struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
149	struct v4l2_subdev **sd;
150	};
151
152	struct vpif_config_params {
153	u8 min_numbuffers;
154	u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
155	s8 device_type;
156	u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
157	u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
158	u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
764af39a	159	u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
6ffefff5 MK	160	u8 max_device_type;
6ffefff5 MK	161	};
822f0fd3	162
6ffefff5 MK	163	#endif /* End of __KERNEL__ */
6ffefff5 MK	164	#endif /* VPIF_CAPTURE_H */