path: root/drivers/media/i2c/vs6624.c

/*
 * vs6624.c ST VS6624 CMOS image sensor driver
 *
 * Copyright (c) 2011 Analog Devices Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/videodev2.h>

#include <media/v4l2-chip-ident.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>

#include "vs6624_regs.h"

#define VGA_WIDTH       640
#define VGA_HEIGHT      480
#define QVGA_WIDTH      320
#define QVGA_HEIGHT     240
#define QQVGA_WIDTH     160
#define QQVGA_HEIGHT    120
#define CIF_WIDTH       352
#define CIF_HEIGHT      288
#define QCIF_WIDTH      176
#define QCIF_HEIGHT     144
#define QQCIF_WIDTH     88
#define QQCIF_HEIGHT    72

#define MAX_FRAME_RATE  30

struct vs6624 {
	struct v4l2_subdev sd;
	struct v4l2_ctrl_handler hdl;
	struct v4l2_fract frame_rate;
	struct v4l2_mbus_framefmt fmt;
	unsigned ce_pin;
};

static const struct vs6624_format {
	enum v4l2_mbus_pixelcode mbus_code;
	enum v4l2_colorspace colorspace;
} vs6624_formats[] = {
	{
		.mbus_code      = V4L2_MBUS_FMT_UYVY8_2X8,
		.colorspace     = V4L2_COLORSPACE_JPEG,
	},
	{
		.mbus_code      = V4L2_MBUS_FMT_YUYV8_2X8,
		.colorspace     = V4L2_COLORSPACE_JPEG,
	},
	{
		.mbus_code      = V4L2_MBUS_FMT_RGB565_2X8_LE,
		.colorspace     = V4L2_COLORSPACE_SRGB,
	},
};

static struct v4l2_mbus_framefmt vs6624_default_fmt = {
	.width = VGA_WIDTH,
	.height = VGA_HEIGHT,
	.code = V4L2_MBUS_FMT_UYVY8_2X8,
	.field = V4L2_FIELD_NONE,
	.colorspace = V4L2_COLORSPACE_JPEG,
};

static const u16 vs6624_p1[] = {
	0x8104, 0x03,
	0x8105, 0x01,
	0xc900, 0x03,
	0xc904, 0x47,
	0xc905, 0x10,
	0xc906, 0x80,
	0xc907, 0x3a,
	0x903a, 0x02,
	0x903b, 0x47,
	0x903c, 0x15,
	0xc908, 0x31,
	0xc909, 0xdc,
	0xc90a, 0x80,
	0xc90b, 0x44,
	0x9044, 0x02,
	0x9045, 0x31,
	0x9046, 0xe2,
	0xc90c, 0x07,
	0xc90d, 0xe0,
	0xc90e, 0x80,
	0xc90f, 0x47,
	0x9047, 0x90,
	0x9048, 0x83,
	0x9049, 0x81,
	0x904a, 0xe0,
	0x904b, 0x60,
	0x904c, 0x08,
	0x904d, 0x90,
	0x904e, 0xc0,
	0x904f, 0x43,
	0x9050, 0x74,
	0x9051, 0x01,
	0x9052, 0xf0,
	0x9053, 0x80,
	0x9054, 0x05,
	0x9055, 0xE4,
	0x9056, 0x90,
	0x9057, 0xc0,
	0x9058, 0x43,
	0x9059, 0xf0,
	0x905a, 0x02,
	0x905b, 0x07,
	0x905c, 0xec,
	0xc910, 0x5d,
	0xc911, 0xca,
	0xc912, 0x80,
	0xc913, 0x5d,
	0x905d, 0xa3,
	0x905e, 0x04,
	0x905f, 0xf0,
	0x9060, 0xa3,
	0x9061, 0x04,
	0x9062, 0xf0,
	0x9063, 0x22,
	0xc914, 0x72,
	0xc915, 0x92,
	0xc916, 0x80,
	0xc917, 0x64,
	0x9064, 0x74,
	0x9065, 0x01,
	0x9066, 0x02,
	0x9067, 0x72,
	0x9068, 0x95,
	0xc918, 0x47,
	0xc919, 0xf2,
	0xc91a, 0x81,
	0xc91b, 0x69,
	0x9169, 0x74,
	0x916a, 0x02,
	0x916b, 0xf0,
	0x916c, 0xec,
	0x916d, 0xb4,
	0x916e, 0x10,
	0x916f, 0x0a,
	0x9170, 0x90,
	0x9171, 0x80,
	0x9172, 0x16,
	0x9173, 0xe0,
	0x9174, 0x70,
	0x9175, 0x04,
	0x9176, 0x90,
	0x9177, 0xd3,
	0x9178, 0xc4,
	0x9179, 0xf0,
	0x917a, 0x22,
	0xc91c, 0x0a,
	0xc91d, 0xbe,
	0xc91e, 0x80,
	0xc91f, 0x73,
	0x9073, 0xfc,
	0x9074, 0xa3,
	0x9075, 0xe0,
	0x9076, 0xf5,
	0x9077, 0x82,
	0x9078, 0x8c,
	0x9079, 0x83,
	0x907a, 0xa3,
	0x907b, 0xa3,
	0x907c, 0xe0,
	0x907d, 0xfc,
	0x907e, 0xa3,
	0x907f, 0xe0,
	0x9080, 0xc3,
	0x9081, 0x9f,
	0x9082, 0xff,
	0x9083, 0xec,
	0x9084, 0x9e,
	0x9085, 0xfe,
	0x9086, 0x02,
	0x9087, 0x0a,
	0x9088, 0xea,