[media] davinci: vpfe: add v4l2 capture driver with media interface

/*

 * Copyright (C) 2012 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 version 2.

 *

 * 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

 *

 * Contributors:

 *      Manjunath Hadli <manjunath.hadli@ti.com>

 *      Prabhakar Lad <prabhakar.lad@ti.com>

 */

#ifndef _VPFE_H

#define _VPFE_H

#ifdef __KERNEL__

#include <linux/v4l2-subdev.h>

#include <linux/clk.h>

#include <linux/i2c.h>

#include <media/davinci/vpfe_types.h>

#define CAPTURE_DRV_NAME	"vpfe-capture"

struct vpfe_route {

	__u32 input;

	__u32 output;

};

enum vpfe_subdev_id {

	VPFE_SUBDEV_TVP5146 = 1,

	VPFE_SUBDEV_MT9T031 = 2,

	VPFE_SUBDEV_TVP7002 = 3,

	VPFE_SUBDEV_MT9P031 = 4,

};

struct vpfe_ext_subdev_info {

	/* v4l2 subdev */

	struct v4l2_subdev *subdev;

	/* Sub device module name */

	char module_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;

	/* ccdc bus/interface configuration */

	struct vpfe_hw_if_param ccdc_if_params;

	/* i2c subdevice board info */

	struct i2c_board_info board_info;

	/* Is this a camera sub device ? */

	unsigned is_camera:1;

	/* check if sub dev supports routing */

	unsigned can_route:1;

	/* registered ? */

	unsigned registered:1;

};

struct vpfe_config {

	/* Number of sub devices connected to vpfe */

	int num_subdevs;

	/* information about each subdev */

	struct vpfe_ext_subdev_info *sub_devs;

	/* evm card info */

	char *card_name;

	/* setup function for the input path */

	int (*setup_input)(enum vpfe_subdev_id id);

	/* number of clocks */

	int num_clocks;

	/* clocks used for vpfe capture */

	char *clocks[];

};

#endif

#endif