path: root/drivers/media/usb/gspca/sq930x.c

/*
 * SQ930x subdriver
 *
 * Copyright (C) 2010 Jean-François Moine <http://moinejf.free.fr>
 * Copyright (C) 2006 -2008 Gerard Klaver <gerard at gkall dot hobby dot nl>
 * Copyright (C) 2007 Sam Revitch <samr7@cs.washington.edu>
 *
 * 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
 * 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
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "sq930x"

#include "gspca.h"

MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>\n"
		"Gerard Klaver <gerard at gkall dot hobby dot nl\n"
		"Sam Revitch <samr7@cs.washington.edu>");
MODULE_DESCRIPTION("GSPCA/SQ930x USB Camera Driver");
MODULE_LICENSE("GPL");

/* Structure to hold all of our device specific stuff */
struct sd {
	struct gspca_dev gspca_dev;	/* !! must be the first item */

	struct { /* exposure/gain control cluster */
		struct v4l2_ctrl *exposure;
		struct v4l2_ctrl *gain;
	};

	u8 do_ctrl;
	u8 gpio[2];
	u8 sensor;
	u8 type;
#define Generic 0
#define Creative_live_motion 1
};
enum sensors {
	SENSOR_ICX098BQ,
	SENSOR_LZ24BP,
	SENSOR_MI0360,
	SENSOR_MT9V111,		/* = MI360SOC */
	SENSOR_OV7660,
	SENSOR_OV9630,
};

static struct v4l2_pix_format vga_mode[] = {
	{320, 240, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE,
		.bytesperline = 320,
		.sizeimage = 320 * 240,
		.colorspace = V4L2_COLORSPACE_SRGB,
		.priv = 0},
	{640, 480, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE,
		.bytesperline = 640,
		.sizeimage = 640 * 480,
		.colorspace = V4L2_COLORSPACE_SRGB,
		.priv = 1},
};

/* sq930x registers */
#define SQ930_CTRL_UCBUS_IO	0x0001
#define SQ930_CTRL_I2C_IO	0x0002
#define SQ930_CTRL_GPIO		0x0005
#define SQ930_CTRL_CAP_START	0x0010
#define SQ930_CTRL_CAP_STOP	0x0011
#define SQ930_CTRL_SET_EXPOSURE 0x001d
#define SQ930_CTRL_RESET	0x001e
#define SQ930_CTRL_GET_DEV_INFO 0x001f

/* gpio 1 (8..15) */
#define SQ930_GPIO_DFL_I2C_SDA	0x0001
#define SQ930_GPIO_DFL_I2C_SCL	0x0002
#define SQ930_GPIO_RSTBAR	0x0004
#define SQ930_GPIO_EXTRA1	0x0040
#define SQ930_GPIO_EXTRA2	0x0080
/* gpio 3 (24..31) */
#define SQ930_GPIO_POWER	0x0200
#define SQ930_GPIO_DFL_LED	0x1000

struct ucbus_write_cmd {
	u16	bw_addr;
	u8	bw_data;
};
struct i2c_write_cmd {
	u8	reg;
	u16	val;
};

static const struct ucbus_write_cmd icx098bq_start_0[] = {
	{0x0354, 0x00}, {0x03fa, 0x00}, {0xf800, 0x02}, {0xf801, 0xce},
	{0xf802, 0xc1}, {0xf804, 0x00}, {0xf808, 0x00}, {0xf809, 0x0e},
	{0xf80a, 0x01}, {0xf80b, 0xee}, {0xf807, 0x60}, {0xf80c, 0x02},
	{0xf80d, 0xf0}, {0xf80e, 0x03}, {0xf80f, 0x0a}, {0xf81c, 0x02},
	{0xf81d, 0xf0}, {0xf81e, 0x03}, {0xf81f, 0x0a}, {0xf83a, 0x00},
	{0xf83b, 0x10}, {0xf83c, 0x00}, {0xf83d, 0x4e}, {0xf810, 0x04},
	{0xf811, 0x00}, {0xf812, 0x02}, {0xf813, 0x10}, {0xf803, 0x00},
	{0xf814, 0x01}, {0xf815, 0x18}, {0xf816, 0x00}, {0xf817, 0x48},
	{0xf818, 0x00}, {0xf819, 0x25}, {0xf81a, 0x00}, {0xf81b, 0x3c},
	{0xf82f, 0x03}, {0xf820, 0xff}, {0xf821