[deliverable/linux.git] / include / media / davinci / vpfe_capture.h

/*
 * Copyright (C) 2008-2009 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 _VPFE_CAPTURE_H
#define _VPFE_CAPTURE_H

#ifdef __KERNEL__

/* Header files */
#include <media/v4l2-dev.h>
#include <linux/videodev2.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/videobuf-dma-contig.h>
#include <media/davinci/vpfe_types.h>

#define VPFE_CAPTURE_NUM_DECODERS        5

/* Macros */
#define VPFE_MAJOR_RELEASE              0
#define VPFE_MINOR_RELEASE              0
#define VPFE_BUILD                      1
#define VPFE_CAPTURE_VERSION_CODE       ((VPFE_MAJOR_RELEASE << 16) | \
					(VPFE_MINOR_RELEASE << 8)  | \
					VPFE_BUILD)

#define CAPTURE_DRV_NAME		"vpfe-capture"

struct vpfe_pixel_format {
	struct v4l2_fmtdesc fmtdesc;
	/* bytes per pixel */
	int bpp;
};

struct vpfe_std_info {
	int active_pixels;
	int active_lines;
	/* current frame format */
	int frame_format;
};

struct vpfe_route {
	u32 input;
	u32 output;
};

struct vpfe_subdev_info {
	/* Sub device name */
	char name[32];
	/* Sub device group id */
	int grp_id;
	/* Number of inputs supported */
	int num_inputs;
	/* inputs available at the sub device */
	struct v4l2_input *inputs;
	/* Sub dev routing information for each input */
	struct vpfe_route *routes;
	/* check if sub dev supports routing */
	int can_route;
	/* ccdc bus/interface configuration */
	struct vpfe_hw_if_param ccdc_if_params;
	/* i2c subdevice board info */
	struct i2c_board_info board_info;
};

struct vpfe_config {
	/* Number of sub devices connected to vpfe */
	int num_subdevs;
	/* i2c bus adapter no */
	int i2c_adapter_id;
	/* information about each subdev */
	struct vpfe_subdev_info *sub_devs;
	/* evm card info */
	char *card_name;
	/* ccdc name */
	char *ccdc;
	/* vpfe clock */
	struct clk *vpssclk;
	struct clk *slaveclk;
	/* Function for Clearing the interrupt */
	void (*clr_intr)(int vdint);
};

struct vpfe_device {
	/* V4l2 specific parameters */
	/* Identifies video device for this channel */
	struct video_device video_dev;
	/* sub devices */
	struct v4l2_subdev **sd;
	/* vpfe cfg */
	struct vpfe_config *cfg;
	/* V4l2 device */
	struct v4l2_device v4l2_dev;
	/* parent device */
	struct device *pdev;
	/* number of open instances of the channel */
	u32 usrs;
	/* Indicates id of the field which is being displayed */
	u32 field_id;
	/* flag to indicate whether decoder is initialized */
	u8 initialized;
	/* current interface type */
	struct vpfe_hw_if_param vpfe_if_params;
	/* ptr to currently selected sub device */
	struct vpfe_subdev_info *current_subdev;
	/* current input at the sub device */
	int current_input;
	/* Keeps track of the information about the standard */
	struct vpfe_std_info std_info;
	/* std index into std table */
	int std_index;
	/* CCDC IRQs used when CCDC/ISIF output to SDRAM */
	unsigned int ccdc_irq0;
	unsigned int ccdc_irq1;
	/* number of buffers in fbuffers */
	u32 numbuffers;
	/* List of buffer pointers for storing frames */
	u8 *fbuffers[VIDEO_MAX_FRAME];
	/* Pointer pointing to current v4l2_buffer */
	struct videobuf_buffer *cur_frm;
	/* Pointer pointing to next v4l2_buffer */
	struct videobuf_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;
	/*
	 * used when IMP is chained to store the crop window which
	 * is different from the image window
	 */
	struct v4l2_rect crop;
	/* Buffer queue used in video-buf */
	struct videobuf_queue buffer_queue;
	/* Queue of filled frames */
	struct list_head dma_queue;
	/* Used in video-buf */
	spinlock_t irqlock;
	/* IRQ lock for DMA queue */
	spinlock_t dma_queue_lock;
	/* lock used to access this structure */
	struct mutex lock;
	/* number of users performing IO */
	u32 io_usrs;
	/* Indicates whether streaming started */
	u8 started;
	/*
	 * offset where second field starts from the starting of the
	 * buffer for field separated YCbCr formats
	 */
	u32 field_off;
};

/* File handle structure */
struct vpfe_fh {
	struct v4l2_fh fh;
	struct vpfe_device *vpfe_dev;
	/* Indicates whether this file handle is doing IO */
	u8 io_allowed;
};

struct vpfe_config_params {
	u8 min_numbuffers;
	u8 numbuffers;
	u32 min_bufsize;
	u32 device_bufsize;
};

#endif				/* End of __KERNEL__ */
/**
 * VPFE_CMD_S_CCDC_RAW_PARAMS - EXPERIMENTAL IOCTL to set raw capture params
 * This can be used to configure modules such as defect pixel correction,
 * color space conversion, culling etc. This is an experimental ioctl that
 * will change in future kernels. So use this ioctl with care !
 * TODO: This is to be split into multiple ioctls and also explore the
 * possibility of extending the v4l2 api to include this
 **/
#define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', BASE_VIDIOC_PRIVATE + 1, \
					void *)
#endif				/* _DAVINCI_VPFE_H */
Commit	Line	Data
7da8a6cb MK	1	/*
	2	* Copyright (C) 2008-2009 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 _VPFE_CAPTURE_H
	20	#define _VPFE_CAPTURE_H
	21
	22	#ifdef __KERNEL__
	23
	24	/* Header files */
	25	#include <media/v4l2-dev.h>
	26	#include <linux/videodev2.h>
	27	#include <linux/clk.h>
	28	#include <linux/i2c.h>
3bdaa382	29	#include <media/v4l2-fh.h>
7da8a6cb MK	30	#include <media/v4l2-ioctl.h>
	31	#include <media/v4l2-device.h>
	32	#include <media/videobuf-dma-contig.h>
	33	#include <media/davinci/vpfe_types.h>
	34
	35	#define VPFE_CAPTURE_NUM_DECODERS 5
	36
	37	/* Macros */
	38	#define VPFE_MAJOR_RELEASE 0
	39	#define VPFE_MINOR_RELEASE 0
	40	#define VPFE_BUILD 1
	41	#define VPFE_CAPTURE_VERSION_CODE ((VPFE_MAJOR_RELEASE << 16) \| \
	42	(VPFE_MINOR_RELEASE << 8) \| \
	43	VPFE_BUILD)
	44
	45	#define CAPTURE_DRV_NAME "vpfe-capture"
	46
	47	struct vpfe_pixel_format {
	48	struct v4l2_fmtdesc fmtdesc;
	49	/* bytes per pixel */
	50	int bpp;
	51	};
	52
	53	struct vpfe_std_info {
	54	int active_pixels;
	55	int active_lines;
	56	/* current frame format */
	57	int frame_format;
	58	};
	59
	60	struct vpfe_route {
	61	u32 input;
	62	u32 output;
	63	};
	64
	65	struct vpfe_subdev_info {
	66	/* Sub device name */
	67	char name[32];
	68	/* Sub device group id */
	69	int grp_id;
	70	/* Number of inputs supported */
	71	int num_inputs;
	72	/* inputs available at the sub device */
	73	struct v4l2_input *inputs;
	74	/* Sub dev routing information for each input */
	75	struct vpfe_route *routes;
	76	/* check if sub dev supports routing */
	77	int can_route;
	78	/* ccdc bus/interface configuration */
	79	struct vpfe_hw_if_param ccdc_if_params;
	80	/* i2c subdevice board info */
	81	struct i2c_board_info board_info;
	82	};
	83
	84	struct vpfe_config {
	85	/* Number of sub devices connected to vpfe */
	86	int num_subdevs;
e53a70b4 VH	87	/* i2c bus adapter no */
e53a70b4 VH	88	int i2c_adapter_id;
7da8a6cb MK	89	/* information about each subdev */
	90	struct vpfe_subdev_info *sub_devs;
	91	/* evm card info */
	92	char *card_name;
	93	/* ccdc name */
	94	char *ccdc;
	95	/* vpfe clock */
	96	struct clk *vpssclk;
	97	struct clk *slaveclk;
085b54a2 VH	98	/* Function for Clearing the interrupt */
085b54a2 VH	99	void (*clr_intr)(int vdint);
7da8a6cb MK	100	};
	101
	102	struct vpfe_device {
	103	/* V4l2 specific parameters */
	104	/* Identifies video device for this channel */
03c278f0	105	struct video_device video_dev;
7da8a6cb MK	106	/* sub devices */
	107	struct v4l2_subdev **sd;
	108	/* vpfe cfg */
	109	struct vpfe_config *cfg;
	110	/* V4l2 device */
	111	struct v4l2_device v4l2_dev;
	112	/* parent device */
	113	struct device *pdev;
7da8a6cb MK	114	/* number of open instances of the channel */
	115	u32 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	/* current interface type */
	121	struct vpfe_hw_if_param vpfe_if_params;
	122	/* ptr to currently selected sub device */
	123	struct vpfe_subdev_info *current_subdev;
	124	/* current input at the sub device */
	125	int current_input;
	126	/* Keeps track of the information about the standard */
	127	struct vpfe_std_info std_info;
	128	/* std index into std table */
	129	int std_index;
	130	/* CCDC IRQs used when CCDC/ISIF output to SDRAM */
	131	unsigned int ccdc_irq0;
	132	unsigned int ccdc_irq1;
	133	/* number of buffers in fbuffers */
	134	u32 numbuffers;
	135	/* List of buffer pointers for storing frames */
	136	u8 *fbuffers[VIDEO_MAX_FRAME];
	137	/* Pointer pointing to current v4l2_buffer */
	138	struct videobuf_buffer *cur_frm;
	139	/* Pointer pointing to next v4l2_buffer */
	140	struct videobuf_buffer *next_frm;
	141	/*
	142	* This field keeps track of type of buffer exchange mechanism
	143	* user has selected
	144	*/
	145	enum v4l2_memory memory;
	146	/* Used to store pixel format */
	147	struct v4l2_format fmt;
	148	/*
	149	* used when IMP is chained to store the crop window which
	150	* is different from the image window
	151	*/
	152	struct v4l2_rect crop;
	153	/* Buffer queue used in video-buf */
	154	struct videobuf_queue buffer_queue;
	155	/* Queue of filled frames */
	156	struct list_head dma_queue;
	157	/* Used in video-buf */
	158	spinlock_t irqlock;
	159	/* IRQ lock for DMA queue */
	160	spinlock_t dma_queue_lock;
	161	/* lock used to access this structure */
	162	struct mutex lock;
	163	/* number of users performing IO */
	164	u32 io_usrs;
	165	/* Indicates whether streaming started */
	166	u8 started;
	167	/*
	168	* offset where second field starts from the starting of the
3ad2f3fb	169	* buffer for field separated YCbCr formats
7da8a6cb MK	170	*/
	171	u32 field_off;
	172	};
	173
	174	/* File handle structure */
	175	struct vpfe_fh {
3bdaa382	176	struct v4l2_fh fh;
7da8a6cb MK	177	struct vpfe_device *vpfe_dev;
	178	/* Indicates whether this file handle is doing IO */
	179	u8 io_allowed;
7da8a6cb MK	180	};
	181
	182	struct vpfe_config_params {
	183	u8 min_numbuffers;
	184	u8 numbuffers;
	185	u32 min_bufsize;
	186	u32 device_bufsize;
	187	};
	188
	189	#endif /* End of __KERNEL__ */
	190	/**
	191	* VPFE_CMD_S_CCDC_RAW_PARAMS - EXPERIMENTAL IOCTL to set raw capture params
	192	* This can be used to configure modules such as defect pixel correction,
	193	* color space conversion, culling etc. This is an experimental ioctl that
	194	* will change in future kernels. So use this ioctl with care !
	195	* TODO: This is to be split into multiple ioctls and also explore the
	196	* possibility of extending the v4l2 api to include this
	197	**/
	198	#define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', BASE_VIDIOC_PRIVATE + 1, \
	199	void *)
	200	#endif /* _DAVINCI_VPFE_H */