ov519.c 59.9 KB
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/**
 * OV519 driver
 *
 * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
 *
 * (This module is adapted from the ov51x-jpeg package)
 *
 * 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 MODULE_NAME "ov519"

#include "gspca.h"

MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
MODULE_DESCRIPTION("OV519 USB Camera Driver");
MODULE_LICENSE("GPL");

/* global parameters */
static int frame_rate;

/* Number of times to retry a failed I2C transaction. Increase this if you
 * are getting "Failed to read sensor ID..." */
static int i2c_detect_tries = 10;

/* ov519 device descriptor */
struct sd {
	struct gspca_dev gspca_dev;		/* !! must be the first item */

	/* Determined by sensor type */
	short maxwidth;
	short maxheight;

	unsigned char primary_i2c_slave;	/* I2C write id of sensor */

	unsigned char brightness;
	unsigned char contrast;
	unsigned char colors;
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	__u8 hflip;
	__u8 vflip;
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	char compress;		/* Should the next frame be compressed? */
	char compress_inited;	/* Are compression params uploaded? */
	char stopped;		/* Streaming is temporarily paused */

	char frame_rate;	/* current Framerate (OV519 only) */
	char clockdiv;		/* clockdiv override for OV519 only */

	char sensor;		/* Type of image sensor chip (SEN_*) */
#define SEN_UNKNOWN 0
#define SEN_OV6620 1
#define SEN_OV6630 2
#define SEN_OV7610 3
#define SEN_OV7620 4
#define SEN_OV7630 5
#define SEN_OV7640 6
#define SEN_OV7670 7
#define SEN_OV76BE 8
#define SEN_OV8610 9

};

/* V4L2 controls supported by the driver */
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
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static struct ctrl sd_ctrls[] = {
#define SD_BRIGHTNESS 0
	{
	    {
		.id      = V4L2_CID_BRIGHTNESS,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Brightness",
		.minimum = 0,
		.maximum = 255,
		.step    = 1,
		.default_value = 127,
	    },
	    .set = sd_setbrightness,
	    .get = sd_getbrightness,
	},
#define SD_CONTRAST 1
	{
	    {
		.id      = V4L2_CID_CONTRAST,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Contrast",
		.minimum = 0,
		.maximum = 255,
		.step    = 1,
		.default_value = 127,
	    },
	    .set = sd_setcontrast,
	    .get = sd_getcontrast,
	},
#define SD_COLOR 2
	{
	    {
		.id      = V4L2_CID_SATURATION,
		.type    = V4L2_CTRL_TYPE_INTEGER,
		.name    = "Saturation",
		.minimum = 0,
		.maximum = 255,
		.step    = 1,
		.default_value = 127,
	    },
	    .set = sd_setcolors,
	    .get = sd_getcolors,
	},
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/* next controls work with ov7670 only */
	{
	    {
		.id      = V4L2_CID_HFLIP,
		.type    = V4L2_CTRL_TYPE_BOOLEAN,
		.name    = "Mirror",
		.minimum = 0,
		.maximum = 1,
		.step    = 1,
#define HFLIP_DEF 0
		.default_value = HFLIP_DEF,
	    },
	    .set = sd_sethflip,
	    .get = sd_gethflip,
	},
	{
	    {
		.id      = V4L2_CID_VFLIP,
		.type    = V4L2_CTRL_TYPE_BOOLEAN,
		.name    = "Vflip",
		.minimum = 0,
		.maximum = 1,
		.step    = 1,
#define VFLIP_DEF 0
		.default_value = VFLIP_DEF,
	    },
	    .set = sd_setvflip,
	    .get = sd_getvflip,
	},
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};

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static struct v4l2_pix_format vga_mode[] = {
	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 320,
		.sizeimage = 320 * 240 * 3 / 8 + 589,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 1},
	{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 640,
		.sizeimage = 640 * 480 * 3 / 8 + 590,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
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};
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static struct v4l2_pix_format sif_mode[] = {
	{176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 176,
		.sizeimage = 176 * 144 * 3 / 8 + 589,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 1},
	{352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 352,
		.sizeimage = 352 * 288 * 3 / 8 + 589,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
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};

/* OV519 Camera interface register numbers */
#define OV519_CAM_H_SIZE		0x10
#define OV519_CAM_V_SIZE		0x11
#define OV519_CAM_X_OFFSETL		0x12
#define OV519_CAM_X_OFFSETH		0x13
#define OV519_CAM_Y_OFFSETL		0x14
#define OV519_CAM_Y_OFFSETH		0x15
#define OV519_CAM_DIVIDER		0x16
#define OV519_CAM_DFR			0x20
#define OV519_CAM_FORMAT		0x25

/* OV519 System Controller register numbers */
#define OV519_SYS_RESET1 0x51
#define OV519_SYS_EN_CLK1 0x54

#define OV519_GPIO_DATA_OUT0		0x71
#define OV519_GPIO_IO_CTRL0		0x72

#define OV511_ENDPOINT_ADDRESS  1	/* Isoc endpoint number */

/* I2C registers */
#define R51x_I2C_W_SID		0x41
#define R51x_I2C_SADDR_3	0x42
#define R51x_I2C_SADDR_2	0x43
#define R51x_I2C_R_SID		0x44
#define R51x_I2C_DATA		0x45
#define R518_I2C_CTL		0x47	/* OV518(+) only */

/* I2C ADDRESSES */
#define OV7xx0_SID   0x42
#define OV8xx0_SID   0xa0
#define OV6xx0_SID   0xc0

/* OV7610 registers */
#define OV7610_REG_GAIN		0x00	/* gain setting (5:0) */
#define OV7610_REG_SAT		0x03	/* saturation */
#define OV8610_REG_HUE		0x04	/* 04 reserved */
#define OV7610_REG_CNT		0x05	/* Y contrast */
#define OV7610_REG_BRT		0x06	/* Y brightness */
#define OV7610_REG_COM_C	0x14	/* misc common regs */
#define OV7610_REG_ID_HIGH	0x1c	/* manufacturer ID MSB */
#define OV7610_REG_ID_LOW	0x1d	/* manufacturer ID LSB */
#define OV7610_REG_COM_I	0x29	/* misc settings */

/* OV7670 registers */
#define OV7670_REG_GAIN        0x00    /* Gain lower 8 bits (rest in vref) */
#define OV7670_REG_BLUE        0x01    /* blue gain */
#define OV7670_REG_RED         0x02    /* red gain */
#define OV7670_REG_VREF        0x03    /* Pieces of GAIN, VSTART, VSTOP */
#define OV7670_REG_COM1        0x04    /* Control 1 */
#define OV7670_REG_AECHH       0x07    /* AEC MS 5 bits */
#define OV7670_REG_COM3        0x0c    /* Control 3 */
#define OV7670_REG_COM4        0x0d    /* Control 4 */
#define OV7670_REG_COM5        0x0e    /* All "reserved" */
#define OV7670_REG_COM6        0x0f    /* Control 6 */
#define OV7670_REG_AECH        0x10    /* More bits of AEC value */
#define OV7670_REG_CLKRC       0x11    /* Clock control */
#define OV7670_REG_COM7        0x12    /* Control 7 */
#define   OV7670_COM7_FMT_VGA    0x00
#define   OV7670_COM7_YUV        0x00    /* YUV */
#define   OV7670_COM7_FMT_QVGA   0x10    /* QVGA format */
#define   OV7670_COM7_FMT_MASK   0x38
#define   OV7670_COM7_RESET      0x80    /* Register reset */
#define OV7670_REG_COM8        0x13    /* Control 8 */
#define   OV7670_COM8_AEC        0x01    /* Auto exposure enable */
#define   OV7670_COM8_AWB        0x02    /* White balance enable */
#define   OV7670_COM8_AGC        0x04    /* Auto gain enable */
#define   OV7670_COM8_BFILT      0x20    /* Band filter enable */
#define   OV7670_COM8_AECSTEP    0x40    /* Unlimited AEC step size */
#define   OV7670_COM8_FASTAEC    0x80    /* Enable fast AGC/AEC */
#define OV7670_REG_COM9        0x14    /* Control 9  - gain ceiling */
#define OV7670_REG_COM10       0x15    /* Control 10 */
#define OV7670_REG_HSTART      0x17    /* Horiz start high bits */
#define OV7670_REG_HSTOP       0x18    /* Horiz stop high bits */
#define OV7670_REG_VSTART      0x19    /* Vert start high bits */
#define OV7670_REG_VSTOP       0x1a    /* Vert stop high bits */
#define OV7670_REG_MVFP        0x1e    /* Mirror / vflip */
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#define   OV7670_MVFP_VFLIP	 0x10    /* vertical flip */
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#define   OV7670_MVFP_MIRROR     0x20    /* Mirror image */
#define OV7670_REG_AEW         0x24    /* AGC upper limit */
#define OV7670_REG_AEB         0x25    /* AGC lower limit */
#define OV7670_REG_VPT         0x26    /* AGC/AEC fast mode op region */
#define OV7670_REG_HREF        0x32    /* HREF pieces */
#define OV7670_REG_TSLB        0x3a    /* lots of stuff */
#define OV7670_REG_COM11       0x3b    /* Control 11 */
#define   OV7670_COM11_EXP       0x02
#define   OV7670_COM11_HZAUTO    0x10    /* Auto detect 50/60 Hz */
#define OV7670_REG_COM12       0x3c    /* Control 12 */
#define OV7670_REG_COM13       0x3d    /* Control 13 */
#define   OV7670_COM13_GAMMA     0x80    /* Gamma enable */
#define   OV7670_COM13_UVSAT     0x40    /* UV saturation auto adjustment */
#define OV7670_REG_COM14       0x3e    /* Control 14 */
#define OV7670_REG_EDGE        0x3f    /* Edge enhancement factor */
#define OV7670_REG_COM15       0x40    /* Control 15 */
#define   OV7670_COM15_R00FF     0xc0    /*            00 to FF */
#define OV7670_REG_COM16       0x41    /* Control 16 */
#define   OV7670_COM16_AWBGAIN   0x08    /* AWB gain enable */
#define OV7670_REG_BRIGHT      0x55    /* Brightness */
#define OV7670_REG_CONTRAS     0x56    /* Contrast control */
#define OV7670_REG_GFIX        0x69    /* Fix gain control */
#define OV7670_REG_RGB444      0x8c    /* RGB 444 control */
#define OV7670_REG_HAECC1      0x9f    /* Hist AEC/AGC control 1 */
#define OV7670_REG_HAECC2      0xa0    /* Hist AEC/AGC control 2 */
#define OV7670_REG_BD50MAX     0xa5    /* 50hz banding step limit */
#define OV7670_REG_HAECC3      0xa6    /* Hist AEC/AGC control 3 */
#define OV7670_REG_HAECC4      0xa7    /* Hist AEC/AGC control 4 */
#define OV7670_REG_HAECC5      0xa8    /* Hist AEC/AGC control 5 */
#define OV7670_REG_HAECC6      0xa9    /* Hist AEC/AGC control 6 */
#define OV7670_REG_HAECC7      0xaa    /* Hist AEC/AGC control 7 */
#define OV7670_REG_BD60MAX     0xab    /* 60hz banding step limit */

struct ovsensor_window {
	short x;
	short y;
	short width;
	short height;
/*	int format; */
	short quarter;		/* Scale width and height down 2x */
	short clockdiv;		/* Clock divisor setting */
};

static unsigned char ov7670_abs_to_sm(unsigned char v)
{
	if (v > 127)
		return v & 0x7f;
	return (128 - v) | 0x80;
}

/* Write a OV519 register */
static int reg_w(struct sd *sd, __u16 index, __u8 value)
{
	int ret;

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	sd->gspca_dev.usb_buf[0] = value;
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	ret = usb_control_msg(sd->gspca_dev.dev,
			usb_sndctrlpipe(sd->gspca_dev.dev, 0),
			1,			/* REQ_IO (ov518/519) */
			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			0, index,
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			sd->gspca_dev.usb_buf, 1, 500);
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	if (ret < 0)
		PDEBUG(D_ERR, "Write reg [%02x] %02x failed", index, value);
	return ret;
}

/* Read from a OV519 register */
/* returns: negative is error, pos or zero is data */
static int reg_r(struct sd *sd, __u16 index)
{
	int ret;

	ret = usb_control_msg(sd->gspca_dev.dev,
			usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
			1,			/* REQ_IO */
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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			0, index, sd->gspca_dev.usb_buf, 1, 500);
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	if (ret >= 0)
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		ret = sd->gspca_dev.usb_buf[0];
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	else
		PDEBUG(D_ERR, "Read reg [0x%02x] failed", index);
	return ret;
}

/* Read 8 values from a OV519 register */
static int reg_r8(struct sd *sd,
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		  __u16 index)
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{
	int ret;

	ret = usb_control_msg(sd->gspca_dev.dev,
			usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
			1,			/* REQ_IO */
			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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			0, index, sd->gspca_dev.usb_buf, 8, 500);
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	if (ret >= 0)
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		ret = sd->gspca_dev.usb_buf[0];
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	else
		PDEBUG(D_ERR, "Read reg 8 [0x%02x] failed", index);
	return ret;
}

/*
 * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
 * the same position as 1's in "mask" are cleared and set to "value". Bits
 * that are in the same position as 0's in "mask" are preserved, regardless
 * of their respective state in "value".
 */
static int reg_w_mask(struct sd *sd,
			__u16 index,
			__u8 value,
			__u8 mask)
{
	int ret;
	__u8 oldval;

	if (mask != 0xff) {
		value &= mask;			/* Enforce mask on value */
		ret = reg_r(sd, index);
		if (ret < 0)
			return ret;

		oldval = ret & ~mask;		/* Clear the masked bits */
		value |= oldval;		/* Set the desired bits */
	}
	return reg_w(sd, index, value);
}

/*
 * The OV518 I2C I/O procedure is different, hence, this function.
 * This is normally only called from i2c_w(). Note that this function
 * always succeeds regardless of whether the sensor is present and working.
 */
static int i2c_w(struct sd *sd,
		__u8 reg,
		__u8 value)
{
	int rc;

	PDEBUG(D_USBO, "i2c 0x%02x -> [0x%02x]", value, reg);

	/* Select camera register */
	rc = reg_w(sd, R51x_I2C_SADDR_3, reg);
	if (rc < 0)
		return rc;

	/* Write "value" to I2C data port of OV511 */
	rc = reg_w(sd, R51x_I2C_DATA, value);
	if (rc < 0)
		return rc;

	/* Initiate 3-byte write cycle */
	rc = reg_w(sd, R518_I2C_CTL, 0x01);

	/* wait for write complete */
	msleep(4);
	if (rc < 0)
		return rc;
	return reg_r8(sd, R518_I2C_CTL);
}

/*
 * returns: negative is error, pos or zero is data
 *
 * The OV518 I2C I/O procedure is different, hence, this function.
 * This is normally only called from i2c_r(). Note that this function
 * always succeeds regardless of whether the sensor is present and working.
 */
static int i2c_r(struct sd *sd, __u8 reg)
{
	int rc, value;

	/* Select camera register */
	rc = reg_w(sd, R51x_I2C_SADDR_2, reg);
	if (rc < 0)
		return rc;

	/* Initiate 2-byte write cycle */
	rc = reg_w(sd, R518_I2C_CTL, 0x03);
	if (rc < 0)
		return rc;

	/* Initiate 2-byte read cycle */
	rc = reg_w(sd, R518_I2C_CTL, 0x05);
	if (rc < 0)
		return rc;
	value = reg_r(sd, R51x_I2C_DATA);
	PDEBUG(D_USBI, "i2c [0x%02X] -> 0x%02X", reg, value);
	return value;
}

/* Writes bits at positions specified by mask to an I2C reg. Bits that are in
 * the same position as 1's in "mask" are cleared and set to "value". Bits
 * that are in the same position as 0's in "mask" are preserved, regardless
 * of their respective state in "value".
 */
static int i2c_w_mask(struct sd *sd,
		   __u8 reg,
		   __u8 value,
		   __u8 mask)
{
	int rc;
	__u8 oldval;

	value &= mask;			/* Enforce mask on value */
	rc = i2c_r(sd, reg);
	if (rc < 0)
		return rc;
	oldval = rc & ~mask;		/* Clear the masked bits */
	value |= oldval;		/* Set the desired bits */
	return i2c_w(sd, reg, value);
}

/* Temporarily stops OV511 from functioning. Must do this before changing
 * registers while the camera is streaming */
static inline int ov51x_stop(struct sd *sd)
{
	PDEBUG(D_STREAM, "stopping");
	sd->stopped = 1;
	return reg_w(sd, OV519_SYS_RESET1, 0x0f);
}

/* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
 * actually stopped (for performance). */
static inline int ov51x_restart(struct sd *sd)
{
	PDEBUG(D_STREAM, "restarting");
	if (!sd->stopped)
		return 0;
	sd->stopped = 0;

	/* Reinitialize the stream */
	return reg_w(sd, OV519_SYS_RESET1, 0x00);
}

/* This does an initial reset of an OmniVision sensor and ensures that I2C
 * is synchronized. Returns <0 on failure.
 */
static int init_ov_sensor(struct sd *sd)
{
	int i, success;

	/* Reset the sensor */
	if (i2c_w(sd, 0x12, 0x80) < 0)
		return -EIO;

	/* Wait for it to initialize */
	msleep(150);

	for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) {
		if (i2c_r(sd, OV7610_REG_ID_HIGH) == 0x7f &&
		    i2c_r(sd, OV7610_REG_ID_LOW) == 0xa2) {
			success = 1;
			continue;
		}

		/* Reset the sensor */
		if (i2c_w(sd, 0x12, 0x80) < 0)
			return -EIO;
		/* Wait for it to initialize */
		msleep(150);
		/* Dummy read to sync I2C */
		if (i2c_r(sd, 0x00) < 0)
			return -EIO;
	}
	if (!success)
		return -EIO;
	PDEBUG(D_PROBE, "I2C synced in %d attempt(s)", i);
	return 0;
}

/* Switch on standard JPEG compression. Returns 0 for success. */
static int ov519_init_compression(struct sd *sd)
{
	if (!sd->compress_inited) {
		if (reg_w_mask(sd, OV519_SYS_EN_CLK1, 1 << 2, 1 << 2) < 0) {
			PDEBUG(D_ERR, "Error switching to compressed mode");
			return -EIO;
		}
		sd->compress_inited = 1;
	}
	return 0;
}

/* Set the read and write slave IDs. The "slave" argument is the write slave,
 * and the read slave will be set to (slave + 1).
 * This should not be called from outside the i2c I/O functions.
 * Sets I2C read and write slave IDs. Returns <0 for error
 */
static int ov51x_set_slave_ids(struct sd *sd,
				__u8 slave)
{
	int rc;

	rc = reg_w(sd, R51x_I2C_W_SID, slave);
	if (rc < 0)
		return rc;
	return reg_w(sd, R51x_I2C_R_SID, slave + 1);
}

struct ov_regvals {
	__u8 reg;
	__u8 val;
};
struct ov_i2c_regvals {
	__u8 reg;
	__u8 val;
};

static int write_regvals(struct sd *sd,
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			 const struct ov_regvals *regvals,
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			 int n)
{
	int rc;

	while (--n >= 0) {
		rc = reg_w(sd, regvals->reg, regvals->val);
		if (rc < 0)
			return rc;
		regvals++;
	}
	return 0;
}

static int write_i2c_regvals(struct sd *sd,
592
			     const struct ov_i2c_regvals *regvals,
593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617
			     int n)
{
	int rc;

	while (--n >= 0) {
		rc = i2c_w(sd, regvals->reg, regvals->val);
		if (rc < 0)
			return rc;
		regvals++;
	}
	return 0;
}

/****************************************************************************
 *
 * OV511 and sensor configuration
 *
 ***************************************************************************/

/* This initializes the OV8110, OV8610 sensor. The OV8110 uses
 * the same register settings as the OV8610, since they are very similar.
 */
static int ov8xx0_configure(struct sd *sd)
{
	int rc;
618
	static const struct ov_i2c_regvals norm_8610[] = {
619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755
		{ 0x12, 0x80 },
		{ 0x00, 0x00 },
		{ 0x01, 0x80 },
		{ 0x02, 0x80 },
		{ 0x03, 0xc0 },
		{ 0x04, 0x30 },
		{ 0x05, 0x30 }, /* was 0x10, new from windrv 090403 */
		{ 0x06, 0x70 }, /* was 0x80, new from windrv 090403 */
		{ 0x0a, 0x86 },
		{ 0x0b, 0xb0 },
		{ 0x0c, 0x20 },
		{ 0x0d, 0x20 },
		{ 0x11, 0x01 },
		{ 0x12, 0x25 },
		{ 0x13, 0x01 },
		{ 0x14, 0x04 },
		{ 0x15, 0x01 }, /* Lin and Win think different about UV order */
		{ 0x16, 0x03 },
		{ 0x17, 0x38 }, /* was 0x2f, new from windrv 090403 */
		{ 0x18, 0xea }, /* was 0xcf, new from windrv 090403 */
		{ 0x19, 0x02 }, /* was 0x06, new from windrv 090403 */
		{ 0x1a, 0xf5 },
		{ 0x1b, 0x00 },
		{ 0x20, 0xd0 }, /* was 0x90, new from windrv 090403 */
		{ 0x23, 0xc0 }, /* was 0x00, new from windrv 090403 */
		{ 0x24, 0x30 }, /* was 0x1d, new from windrv 090403 */
		{ 0x25, 0x50 }, /* was 0x57, new from windrv 090403 */
		{ 0x26, 0xa2 },
		{ 0x27, 0xea },
		{ 0x28, 0x00 },
		{ 0x29, 0x00 },
		{ 0x2a, 0x80 },
		{ 0x2b, 0xc8 }, /* was 0xcc, new from windrv 090403 */
		{ 0x2c, 0xac },
		{ 0x2d, 0x45 }, /* was 0xd5, new from windrv 090403 */
		{ 0x2e, 0x80 },
		{ 0x2f, 0x14 }, /* was 0x01, new from windrv 090403 */
		{ 0x4c, 0x00 },
		{ 0x4d, 0x30 }, /* was 0x10, new from windrv 090403 */
		{ 0x60, 0x02 }, /* was 0x01, new from windrv 090403 */
		{ 0x61, 0x00 }, /* was 0x09, new from windrv 090403 */
		{ 0x62, 0x5f }, /* was 0xd7, new from windrv 090403 */
		{ 0x63, 0xff },
		{ 0x64, 0x53 }, /* new windrv 090403 says 0x57,
				 * maybe thats wrong */
		{ 0x65, 0x00 },
		{ 0x66, 0x55 },
		{ 0x67, 0xb0 },
		{ 0x68, 0xc0 }, /* was 0xaf, new from windrv 090403 */
		{ 0x69, 0x02 },
		{ 0x6a, 0x22 },
		{ 0x6b, 0x00 },
		{ 0x6c, 0x99 }, /* was 0x80, old windrv says 0x00, but
				   deleting bit7 colors the first images red */
		{ 0x6d, 0x11 }, /* was 0x00, new from windrv 090403 */
		{ 0x6e, 0x11 }, /* was 0x00, new from windrv 090403 */
		{ 0x6f, 0x01 },
		{ 0x70, 0x8b },
		{ 0x71, 0x00 },
		{ 0x72, 0x14 },
		{ 0x73, 0x54 },
		{ 0x74, 0x00 },/* 0x60? - was 0x00, new from windrv 090403 */
		{ 0x75, 0x0e },
		{ 0x76, 0x02 }, /* was 0x02, new from windrv 090403 */
		{ 0x77, 0xff },
		{ 0x78, 0x80 },
		{ 0x79, 0x80 },
		{ 0x7a, 0x80 },
		{ 0x7b, 0x10 }, /* was 0x13, new from windrv 090403 */
		{ 0x7c, 0x00 },
		{ 0x7d, 0x08 }, /* was 0x09, new from windrv 090403 */
		{ 0x7e, 0x08 }, /* was 0xc0, new from windrv 090403 */
		{ 0x7f, 0xfb },
		{ 0x80, 0x28 },
		{ 0x81, 0x00 },
		{ 0x82, 0x23 },
		{ 0x83, 0x0b },
		{ 0x84, 0x00 },
		{ 0x85, 0x62 }, /* was 0x61, new from windrv 090403 */
		{ 0x86, 0xc9 },
		{ 0x87, 0x00 },
		{ 0x88, 0x00 },
		{ 0x89, 0x01 },
		{ 0x12, 0x20 },
		{ 0x12, 0x25 }, /* was 0x24, new from windrv 090403 */
	};

	PDEBUG(D_PROBE, "starting ov8xx0 configuration");

	if (init_ov_sensor(sd) < 0)
		PDEBUG(D_ERR|D_PROBE, "Failed to read sensor ID");
	else
		PDEBUG(D_PROBE, "OV86x0 initialized");

	/* Detect sensor (sub)type */
	rc = i2c_r(sd, OV7610_REG_COM_I);
	if (rc < 0) {
		PDEBUG(D_ERR, "Error detecting sensor type");
		return -1;
	}
	if ((rc & 3) == 1) {
		PDEBUG(D_PROBE, "Sensor is an OV8610");
		sd->sensor = SEN_OV8610;
	} else {
		PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
		return -1;
	}
	PDEBUG(D_PROBE, "Writing 8610 registers");
	if (write_i2c_regvals(sd,
			norm_8610,
			sizeof norm_8610 / sizeof norm_8610[0]))
		return -1;

	/* Set sensor-specific vars */
	sd->maxwidth = 640;
	sd->maxheight = 480;
	return 0;
}

/* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
 * the same register settings as the OV7610, since they are very similar.
 */
static int ov7xx0_configure(struct sd *sd)
{
	int rc, high, low;

	/* Lawrence Glaister <lg@jfm.bc.ca> reports:
	 *
	 * Register 0x0f in the 7610 has the following effects:
	 *
	 * 0x85 (AEC method 1): Best overall, good contrast range
	 * 0x45 (AEC method 2): Very overexposed
	 * 0xa5 (spec sheet default): Ok, but the black level is
	 *	shifted resulting in loss of contrast
	 * 0x05 (old driver setting): very overexposed, too much
	 *	contrast
	 */
756
	static const struct ov_i2c_regvals norm_7610[] = {
757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785
		{ 0x10, 0xff },
		{ 0x16, 0x06 },
		{ 0x28, 0x24 },
		{ 0x2b, 0xac },
		{ 0x12, 0x00 },
		{ 0x38, 0x81 },
		{ 0x28, 0x24 },	/* 0c */
		{ 0x0f, 0x85 },	/* lg's setting */
		{ 0x15, 0x01 },
		{ 0x20, 0x1c },
		{ 0x23, 0x2a },
		{ 0x24, 0x10 },
		{ 0x25, 0x8a },
		{ 0x26, 0xa2 },
		{ 0x27, 0xc2 },
		{ 0x2a, 0x04 },
		{ 0x2c, 0xfe },
		{ 0x2d, 0x93 },
		{ 0x30, 0x71 },
		{ 0x31, 0x60 },
		{ 0x32, 0x26 },
		{ 0x33, 0x20 },
		{ 0x34, 0x48 },
		{ 0x12, 0x24 },
		{ 0x11, 0x01 },
		{ 0x0c, 0x24 },
		{ 0x0d, 0x24 },
	};

786
	static const struct ov_i2c_regvals norm_7620[] = {
787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852
		{ 0x00, 0x00 },		/* gain */
		{ 0x01, 0x80 },		/* blue gain */
		{ 0x02, 0x80 },		/* red gain */
		{ 0x03, 0xc0 },		/* OV7670_REG_VREF */
		{ 0x06, 0x60 },
		{ 0x07, 0x00 },
		{ 0x0c, 0x24 },
		{ 0x0c, 0x24 },
		{ 0x0d, 0x24 },
		{ 0x11, 0x01 },
		{ 0x12, 0x24 },
		{ 0x13, 0x01 },
		{ 0x14, 0x84 },
		{ 0x15, 0x01 },
		{ 0x16, 0x03 },
		{ 0x17, 0x2f },
		{ 0x18, 0xcf },
		{ 0x19, 0x06 },
		{ 0x1a, 0xf5 },
		{ 0x1b, 0x00 },
		{ 0x20, 0x18 },
		{ 0x21, 0x80 },
		{ 0x22, 0x80 },
		{ 0x23, 0x00 },
		{ 0x26, 0xa2 },
		{ 0x27, 0xea },
		{ 0x28, 0x20 },
		{ 0x29, 0x00 },
		{ 0x2a, 0x10 },
		{ 0x2b, 0x00 },
		{ 0x2c, 0x88 },
		{ 0x2d, 0x91 },
		{ 0x2e, 0x80 },
		{ 0x2f, 0x44 },
		{ 0x60, 0x27 },
		{ 0x61, 0x02 },
		{ 0x62, 0x5f },
		{ 0x63, 0xd5 },
		{ 0x64, 0x57 },
		{ 0x65, 0x83 },
		{ 0x66, 0x55 },
		{ 0x67, 0x92 },
		{ 0x68, 0xcf },
		{ 0x69, 0x76 },
		{ 0x6a, 0x22 },
		{ 0x6b, 0x00 },
		{ 0x6c, 0x02 },
		{ 0x6d, 0x44 },
		{ 0x6e, 0x80 },
		{ 0x6f, 0x1d },
		{ 0x70, 0x8b },
		{ 0x71, 0x00 },
		{ 0x72, 0x14 },
		{ 0x73, 0x54 },
		{ 0x74, 0x00 },
		{ 0x75, 0x8e },
		{ 0x76, 0x00 },
		{ 0x77, 0xff },
		{ 0x78, 0x80 },
		{ 0x79, 0x80 },
		{ 0x7a, 0x80 },
		{ 0x7b, 0xe2 },
		{ 0x7c, 0x00 },
	};

	/* 7640 and 7648. The defaults should be OK for most registers. */
853
	static const struct ov_i2c_regvals norm_7640[] = {
854 855 856 857 858 859
		{ 0x12, 0x80 },
		{ 0x12, 0x14 },
	};

	/* 7670. Defaults taken from OmniVision provided data,
	*  as provided by Jonathan Corbet of OLPC		*/
860
	static const struct ov_i2c_regvals norm_7670[] = {
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968
		{ OV7670_REG_COM7, OV7670_COM7_RESET },
		{ OV7670_REG_TSLB, 0x04 },		/* OV */
		{ OV7670_REG_COM7, OV7670_COM7_FMT_VGA }, /* VGA */
		{ OV7670_REG_CLKRC, 0x1 },
	/*
	 * Set the hardware window.  These values from OV don't entirely
	 * make sense - hstop is less than hstart.  But they work...
	 */
		{ OV7670_REG_HSTART, 0x13 },	{ OV7670_REG_HSTOP, 0x01 },
		{ OV7670_REG_HREF, 0xb6 },	{ OV7670_REG_VSTART, 0x02 },
		{ OV7670_REG_VSTOP, 0x7a },	{ OV7670_REG_VREF, 0x0a },

		{ OV7670_REG_COM3, 0 },	{ OV7670_REG_COM14, 0 },
	/* Mystery scaling numbers */
		{ 0x70, 0x3a },		{ 0x71, 0x35 },
		{ 0x72, 0x11 },		{ 0x73, 0xf0 },
		{ 0xa2, 0x02 },
/* jfm */
/* { OV7670_REG_COM10, 0x0 }, */

	/* Gamma curve values */
		{ 0x7a, 0x20 },
/* jfm:win 7b=1c */
		{ 0x7b, 0x10 },
/* jfm:win 7c=28 */
		{ 0x7c, 0x1e },
/* jfm:win 7d=3c */
		{ 0x7d, 0x35 },
		{ 0x7e, 0x5a },		{ 0x7f, 0x69 },
		{ 0x80, 0x76 },		{ 0x81, 0x80 },
		{ 0x82, 0x88 },		{ 0x83, 0x8f },
		{ 0x84, 0x96 },		{ 0x85, 0xa3 },
		{ 0x86, 0xaf },		{ 0x87, 0xc4 },
		{ 0x88, 0xd7 },		{ 0x89, 0xe8 },

	/* AGC and AEC parameters.  Note we start by disabling those features,
	   then turn them only after tweaking the values. */
		{ OV7670_REG_COM8, OV7670_COM8_FASTAEC
				 | OV7670_COM8_AECSTEP
				 | OV7670_COM8_BFILT },
		{ OV7670_REG_GAIN, 0 },	{ OV7670_REG_AECH, 0 },
		{ OV7670_REG_COM4, 0x40 }, /* magic reserved bit */
/* jfm:win 14=38 */
		{ OV7670_REG_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
		{ OV7670_REG_BD50MAX, 0x05 },	{ OV7670_REG_BD60MAX, 0x07 },
		{ OV7670_REG_AEW, 0x95 },	{ OV7670_REG_AEB, 0x33 },
		{ OV7670_REG_VPT, 0xe3 },	{ OV7670_REG_HAECC1, 0x78 },
		{ OV7670_REG_HAECC2, 0x68 },
/* jfm:win a1=0b */
		{ 0xa1, 0x03 }, /* magic */
		{ OV7670_REG_HAECC3, 0xd8 },	{ OV7670_REG_HAECC4, 0xd8 },
		{ OV7670_REG_HAECC5, 0xf0 },	{ OV7670_REG_HAECC6, 0x90 },
		{ OV7670_REG_HAECC7, 0x94 },
		{ OV7670_REG_COM8, OV7670_COM8_FASTAEC
				| OV7670_COM8_AECSTEP
				| OV7670_COM8_BFILT
				| OV7670_COM8_AGC
				| OV7670_COM8_AEC },

	/* Almost all of these are magic "reserved" values.  */
		{ OV7670_REG_COM5, 0x61 },	{ OV7670_REG_COM6, 0x4b },
		{ 0x16, 0x02 },
/* jfm */
/*		{ OV7670_REG_MVFP, 0x07|OV7670_MVFP_MIRROR }, */
		{ OV7670_REG_MVFP, 0x07 },
		{ 0x21, 0x02 },		{ 0x22, 0x91 },
		{ 0x29, 0x07 },		{ 0x33, 0x0b },
		{ 0x35, 0x0b },		{ 0x37, 0x1d },
		{ 0x38, 0x71 },		{ 0x39, 0x2a },
		{ OV7670_REG_COM12, 0x78 },	{ 0x4d, 0x40 },
		{ 0x4e, 0x20 },		{ OV7670_REG_GFIX, 0 },
		{ 0x6b, 0x4a },		{ 0x74, 0x10 },
		{ 0x8d, 0x4f },		{ 0x8e, 0 },
		{ 0x8f, 0 },		{ 0x90, 0 },
		{ 0x91, 0 },		{ 0x96, 0 },
		{ 0x9a, 0 },		{ 0xb0, 0x84 },
		{ 0xb1, 0x0c },		{ 0xb2, 0x0e },
		{ 0xb3, 0x82 },		{ 0xb8, 0x0a },

	/* More reserved magic, some of which tweaks white balance */
		{ 0x43, 0x0a },		{ 0x44, 0xf0 },
		{ 0x45, 0x34 },		{ 0x46, 0x58 },
		{ 0x47, 0x28 },		{ 0x48, 0x3a },
		{ 0x59, 0x88 },		{ 0x5a, 0x88 },
		{ 0x5b, 0x44 },		{ 0x5c, 0x67 },
		{ 0x5d, 0x49 },		{ 0x5e, 0x0e },
		{ 0x6c, 0x0a },		{ 0x6d, 0x55 },
		{ 0x6e, 0x11 },		{ 0x6f, 0x9f },
						/* "9e for advance AWB" */
		{ 0x6a, 0x40 },		{ OV7670_REG_BLUE, 0x40 },
		{ OV7670_REG_RED, 0x60 },
		{ OV7670_REG_COM8, OV7670_COM8_FASTAEC
				| OV7670_COM8_AECSTEP
				| OV7670_COM8_BFILT
				| OV7670_COM8_AGC
				| OV7670_COM8_AEC
				| OV7670_COM8_AWB },

	/* Matrix coefficients */
		{ 0x4f, 0x80 },		{ 0x50, 0x80 },
		{ 0x51, 0 },		{ 0x52, 0x22 },
		{ 0x53, 0x5e },		{ 0x54, 0x80 },
		{ 0x58, 0x9e },

		{ OV7670_REG_COM16, OV7670_COM16_AWBGAIN },
		{ OV7670_REG_EDGE, 0 },
		{ 0x75, 0x05 },		{ 0x76, 0xe1 },
		{ 0x4c, 0 },		{ 0x77, 0x01 },
969 970 971 972
		{ OV7670_REG_COM13, OV7670_COM13_GAMMA
				  | OV7670_COM13_UVSAT
				  | 2},		/* was 3 */
		{ 0x4b, 0x09 },
973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113
		{ 0xc9, 0x60 },		{ OV7670_REG_COM16, 0x38 },
		{ 0x56, 0x40 },

		{ 0x34, 0x11 },
		{ OV7670_REG_COM11, OV7670_COM11_EXP|OV7670_COM11_HZAUTO },
		{ 0xa4, 0x88 },		{ 0x96, 0 },
		{ 0x97, 0x30 },		{ 0x98, 0x20 },
		{ 0x99, 0x30 },		{ 0x9a, 0x84 },
		{ 0x9b, 0x29 },		{ 0x9c, 0x03 },
		{ 0x9d, 0x4c },		{ 0x9e, 0x3f },
		{ 0x78, 0x04 },

	/* Extra-weird stuff.  Some sort of multiplexor register */
		{ 0x79, 0x01 },		{ 0xc8, 0xf0 },
		{ 0x79, 0x0f },		{ 0xc8, 0x00 },
		{ 0x79, 0x10 },		{ 0xc8, 0x7e },
		{ 0x79, 0x0a },		{ 0xc8, 0x80 },
		{ 0x79, 0x0b },		{ 0xc8, 0x01 },
		{ 0x79, 0x0c },		{ 0xc8, 0x0f },
		{ 0x79, 0x0d },		{ 0xc8, 0x20 },
		{ 0x79, 0x09 },		{ 0xc8, 0x80 },
		{ 0x79, 0x02 },		{ 0xc8, 0xc0 },
		{ 0x79, 0x03 },		{ 0xc8, 0x40 },
		{ 0x79, 0x05 },		{ 0xc8, 0x30 },
		{ 0x79, 0x26 },

};

	PDEBUG(D_PROBE, "starting OV7xx0 configuration");

/* jfm:already done? */
	if (init_ov_sensor(sd) < 0)
		PDEBUG(D_ERR, "Failed to read sensor ID");
	else
		PDEBUG(D_PROBE, "OV7xx0 initialized");

	/* Detect sensor (sub)type */
	rc = i2c_r(sd, OV7610_REG_COM_I);

	/* add OV7670 here
	 * it appears to be wrongly detected as a 7610 by default */
	if (rc < 0) {
		PDEBUG(D_ERR, "Error detecting sensor type");
		return -1;
	}
	if ((rc & 3) == 3) {
		/* quick hack to make OV7670s work */
		high = i2c_r(sd, 0x0a);
		low = i2c_r(sd, 0x0b);
		/* info("%x, %x", high, low); */
		if (high == 0x76 && low == 0x73) {
			PDEBUG(D_PROBE, "Sensor is an OV7670");
			sd->sensor = SEN_OV7670;
		} else {
			PDEBUG(D_PROBE, "Sensor is an OV7610");
			sd->sensor = SEN_OV7610;
		}
	} else if ((rc & 3) == 1) {
		/* I don't know what's different about the 76BE yet. */
		if (i2c_r(sd, 0x15) & 1)
			PDEBUG(D_PROBE, "Sensor is an OV7620AE");
		else
			PDEBUG(D_PROBE, "Sensor is an OV76BE");

		/* OV511+ will return all zero isoc data unless we
		 * configure the sensor as a 7620. Someone needs to
		 * find the exact reg. setting that causes this. */
		sd->sensor = SEN_OV76BE;
	} else if ((rc & 3) == 0) {
		/* try to read product id registers */
		high = i2c_r(sd, 0x0a);
		if (high < 0) {
			PDEBUG(D_ERR, "Error detecting camera chip PID");
			return high;
		}
		low = i2c_r(sd, 0x0b);
		if (low < 0) {
			PDEBUG(D_ERR, "Error detecting camera chip VER");
			return low;
		}
		if (high == 0x76) {
			if (low == 0x30) {
				PDEBUG(D_PROBE, "Sensor is an OV7630/OV7635");
				sd->sensor = SEN_OV7630;
			} else if (low == 0x40) {
				PDEBUG(D_PROBE, "Sensor is an OV7645");
				sd->sensor = SEN_OV7640; /* FIXME */
			} else if (low == 0x45) {
				PDEBUG(D_PROBE, "Sensor is an OV7645B");
				sd->sensor = SEN_OV7640; /* FIXME */
			} else if (low == 0x48) {
				PDEBUG(D_PROBE, "Sensor is an OV7648");
				sd->sensor = SEN_OV7640; /* FIXME */
			} else {
				PDEBUG(D_PROBE, "Unknown sensor: 0x76%X", low);
				return -1;
			}
		} else {
			PDEBUG(D_PROBE, "Sensor is an OV7620");
			sd->sensor = SEN_OV7620;
		}
	} else {
		PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
		return -1;
	}

	if (sd->sensor == SEN_OV7620) {
		PDEBUG(D_PROBE, "Writing 7620 registers");
		if (write_i2c_regvals(sd, norm_7620,
				sizeof norm_7620 / sizeof norm_7620[0]))
			return -1;
	} else if (sd->sensor == SEN_OV7630) {
		PDEBUG(D_ERR, "7630 is not supported by this driver version");
		return -1;
	} else if (sd->sensor == SEN_OV7640) {
		PDEBUG(D_PROBE, "Writing 7640 registers");
		if (write_i2c_regvals(sd, norm_7640,
				sizeof norm_7640 / sizeof norm_7640[0]))
			return -1;
	} else if (sd->sensor == SEN_OV7670) {
		PDEBUG(D_PROBE, "Writing 7670 registers");
		if (write_i2c_regvals(sd, norm_7670,
				sizeof norm_7670 / sizeof norm_7670[0]))
			return -1;
	} else {
		PDEBUG(D_PROBE, "Writing 7610 registers");
		if (write_i2c_regvals(sd, norm_7610,
				sizeof norm_7610 / sizeof norm_7610[0]))
			return -1;
	}

	/* Set sensor-specific vars */
	sd->maxwidth = 640;
	sd->maxheight = 480;
	return 0;
}

/* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
static int ov6xx0_configure(struct sd *sd)
{
	int rc;
1114
	static const struct ov_i2c_regvals norm_6x20[] = {
1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156
		{ 0x12, 0x80 }, /* reset */
		{ 0x11, 0x01 },
		{ 0x03, 0x60 },
		{ 0x05, 0x7f }, /* For when autoadjust is off */
		{ 0x07, 0xa8 },
		/* The ratio of 0x0c and 0x0d  controls the white point */
		{ 0x0c, 0x24 },
		{ 0x0d, 0x24 },
		{ 0x0f, 0x15 }, /* COMS */
		{ 0x10, 0x75 }, /* AEC Exposure time */
		{ 0x12, 0x24 }, /* Enable AGC */
		{ 0x14, 0x04 },
		/* 0x16: 0x06 helps frame stability with moving objects */
		{ 0x16, 0x06 },
/*		{ 0x20, 0x30 },  * Aperture correction enable */
		{ 0x26, 0xb2 }, /* BLC enable */
		/* 0x28: 0x05 Selects RGB format if RGB on */
		{ 0x28, 0x05 },
		{ 0x2a, 0x04 }, /* Disable framerate adjust */
/*		{ 0x2b, 0xac },  * Framerate; Set 2a[7] first */
		{ 0x2d, 0x99 },
		{ 0x33, 0xa0 }, /* Color Processing Parameter */
		{ 0x34, 0xd2 }, /* Max A/D range */
		{ 0x38, 0x8b },
		{ 0x39, 0x40 },

		{ 0x3c, 0x39 }, /* Enable AEC mode changing */
		{ 0x3c, 0x3c }, /* Change AEC mode */
		{ 0x3c, 0x24 }, /* Disable AEC mode changing */

		{ 0x3d, 0x80 },
		/* These next two registers (0x4a, 0x4b) are undocumented.
		 * They control the color balance */
		{ 0x4a, 0x80 },
		{ 0x4b, 0x80 },
		{ 0x4d, 0xd2 }, /* This reduces noise a bit */
		{ 0x4e, 0xc1 },
		{ 0x4f, 0x04 },
/* Do 50-53 have any effect? */
/* Toggle 0x12[2] off and on here? */
	};

1157
	static const struct ov_i2c_regvals norm_6x30[] = {
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322
		{ 0x12, 0x80 }, /* Reset */
		{ 0x00, 0x1f }, /* Gain */
		{ 0x01, 0x99 }, /* Blue gain */
		{ 0x02, 0x7c }, /* Red gain */
		{ 0x03, 0xc0 }, /* Saturation */
		{ 0x05, 0x0a }, /* Contrast */
		{ 0x06, 0x95 }, /* Brightness */
		{ 0x07, 0x2d }, /* Sharpness */
		{ 0x0c, 0x20 },
		{ 0x0d, 0x20 },
		{ 0x0e, 0x20 },
		{ 0x0f, 0x05 },
		{ 0x10, 0x9a },
		{ 0x11, 0x00 }, /* Pixel clock = fastest */
		{ 0x12, 0x24 }, /* Enable AGC and AWB */
		{ 0x13, 0x21 },
		{ 0x14, 0x80 },
		{ 0x15, 0x01 },
		{ 0x16, 0x03 },
		{ 0x17, 0x38 },
		{ 0x18, 0xea },
		{ 0x19, 0x04 },
		{ 0x1a, 0x93 },
		{ 0x1b, 0x00 },
		{ 0x1e, 0xc4 },
		{ 0x1f, 0x04 },
		{ 0x20, 0x20 },
		{ 0x21, 0x10 },
		{ 0x22, 0x88 },
		{ 0x23, 0xc0 }, /* Crystal circuit power level */
		{ 0x25, 0x9a }, /* Increase AEC black ratio */
		{ 0x26, 0xb2 }, /* BLC enable */
		{ 0x27, 0xa2 },
		{ 0x28, 0x00 },
		{ 0x29, 0x00 },
		{ 0x2a, 0x84 }, /* 60 Hz power */
		{ 0x2b, 0xa8 }, /* 60 Hz power */
		{ 0x2c, 0xa0 },
		{ 0x2d, 0x95 }, /* Enable auto-brightness */
		{ 0x2e, 0x88 },
		{ 0x33, 0x26 },
		{ 0x34, 0x03 },
		{ 0x36, 0x8f },
		{ 0x37, 0x80 },
		{ 0x38, 0x83 },
		{ 0x39, 0x80 },
		{ 0x3a, 0x0f },
		{ 0x3b, 0x3c },
		{ 0x3c, 0x1a },
		{ 0x3d, 0x80 },
		{ 0x3e, 0x80 },
		{ 0x3f, 0x0e },
		{ 0x40, 0x00 }, /* White bal */
		{ 0x41, 0x00 }, /* White bal */
		{ 0x42, 0x80 },
		{ 0x43, 0x3f }, /* White bal */
		{ 0x44, 0x80 },
		{ 0x45, 0x20 },
		{ 0x46, 0x20 },
		{ 0x47, 0x80 },
		{ 0x48, 0x7f },
		{ 0x49, 0x00 },
		{ 0x4a, 0x00 },
		{ 0x4b, 0x80 },
		{ 0x4c, 0xd0 },
		{ 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
		{ 0x4e, 0x40 },
		{ 0x4f, 0x07 }, /* UV avg., col. killer: max */
		{ 0x50, 0xff },
		{ 0x54, 0x23 }, /* Max AGC gain: 18dB */
		{ 0x55, 0xff },
		{ 0x56, 0x12 },
		{ 0x57, 0x81 },
		{ 0x58, 0x75 },
		{ 0x59, 0x01 }, /* AGC dark current comp.: +1 */
		{ 0x5a, 0x2c },
		{ 0x5b, 0x0f }, /* AWB chrominance levels */
		{ 0x5c, 0x10 },
		{ 0x3d, 0x80 },
		{ 0x27, 0xa6 },
		{ 0x12, 0x20 }, /* Toggle AWB */
		{ 0x12, 0x24 },
	};

	PDEBUG(D_PROBE, "starting sensor configuration");

	if (init_ov_sensor(sd) < 0) {
		PDEBUG(D_ERR, "Failed to read sensor ID.");
		return -1;
	}
	PDEBUG(D_PROBE, "OV6xx0 sensor detected");

	/* Detect sensor (sub)type */
	rc = i2c_r(sd, OV7610_REG_COM_I);
	if (rc < 0) {
		PDEBUG(D_ERR, "Error detecting sensor type");
		return -1;
	}

	/* Ugh. The first two bits are the version bits, but
	 * the entire register value must be used. I guess OVT
	 * underestimated how many variants they would make. */
	if (rc == 0x00) {
		sd->sensor = SEN_OV6630;
		PDEBUG(D_ERR,
			"WARNING: Sensor is an OV66308. Your camera may have");
		PDEBUG(D_ERR, "been misdetected in previous driver versions.");
	} else if (rc == 0x01) {
		sd->sensor = SEN_OV6620;
		PDEBUG(D_PROBE, "Sensor is an OV6620");
	} else if (rc == 0x02) {
		sd->sensor = SEN_OV6630;
		PDEBUG(D_PROBE, "Sensor is an OV66308AE");
	} else if (rc == 0x03) {
		sd->sensor = SEN_OV6630;
		PDEBUG(D_PROBE, "Sensor is an OV66308AF");
	} else if (rc == 0x90) {
		sd->sensor = SEN_OV6630;
		PDEBUG(D_ERR,
			"WARNING: Sensor is an OV66307. Your camera may have");
		PDEBUG(D_ERR, "been misdetected in previous driver versions.");
	} else {
		PDEBUG(D_ERR, "FATAL: Unknown sensor version: 0x%02x", rc);
		return -1;
	}

	/* Set sensor-specific vars */
	sd->maxwidth = 352;
	sd->maxheight = 288;

	if (sd->sensor == SEN_OV6620) {
		PDEBUG(D_PROBE, "Writing 6x20 registers");
		if (write_i2c_regvals(sd, norm_6x20,
				sizeof norm_6x20 / sizeof norm_6x20[0]))
			return -1;
	} else {
		PDEBUG(D_PROBE, "Writing 6x30 registers");
		if (write_i2c_regvals(sd, norm_6x30,
				sizeof norm_6x30 / sizeof norm_6x30[0]))
			return -1;
	}
	return 0;
}

/* Turns on or off the LED. Only has an effect with OV511+/OV518(+)/OV519 */
static void ov51x_led_control(struct sd *sd, int on)
{
	PDEBUG(D_STREAM, "LED (%s)", on ? "on" : "off");

/*	if (sd->bridge == BRG_OV511PLUS) */
/*		reg_w(sd, R511_SYS_LED_CTL, on ? 1 : 0); */
/*	else if (sd->bridge == BRG_OV519) */
		reg_w_mask(sd, OV519_GPIO_DATA_OUT0, !on, 1);	/* 0 / 1 */
/*	else if (sd->bclass == BCL_OV518) */
/*		reg_w_mask(sd, R518_GPIO_OUT, on ? 0x02 : 0x00, 0x02); */
}

/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
			const struct usb_device_id *id)
{
	struct sd *sd = (struct sd *) gspca_dev;
	struct cam *cam;

/* (from ov519_configure) */
1323
	static const struct ov_regvals init_519[] = {
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340
		{ 0x5a,  0x6d }, /* EnableSystem */
/* jfm trace usbsnoop3-1.txt */
/* jfm 53 = fb */
		{ 0x53,  0x9b },
		{ 0x54,  0xff }, /* set bit2 to enable jpeg */
		{ 0x5d,  0x03 },
		{ 0x49,  0x01 },
		{ 0x48,  0x00 },
		/* Set LED pin to output mode. Bit 4 must be cleared or sensor
		 * detection will fail. This deserves further investigation. */
		{ OV519_GPIO_IO_CTRL0,   0xee },
		{ 0x51,  0x0f }, /* SetUsbInit */
		{ 0x51,  0x00 },
		{ 0x22,  0x00 },
		/* windows reads 0x55 at this point*/
	};

1341
	if (write_regvals(sd, init_519, ARRAY_SIZE(init_519)))
1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403
		goto error;
/* jfm: not seen in windows trace */
	if (ov519_init_compression(sd))
		goto error;
	ov51x_led_control(sd, 0);	/* turn LED off */

	/* Test for 76xx */
	sd->primary_i2c_slave = OV7xx0_SID;
	if (ov51x_set_slave_ids(sd, OV7xx0_SID) < 0)
		goto error;

	/* The OV519 must be more aggressive about sensor detection since
	 * I2C write will never fail if the sensor is not present. We have
	 * to try to initialize the sensor to detect its presence */
	if (init_ov_sensor(sd) < 0) {
		/* Test for 6xx0 */
		sd->primary_i2c_slave = OV6xx0_SID;
		if (ov51x_set_slave_ids(sd, OV6xx0_SID) < 0)
			goto error;

		if (init_ov_sensor(sd) < 0) {
			/* Test for 8xx0 */
			sd->primary_i2c_slave = OV8xx0_SID;
			if (ov51x_set_slave_ids(sd, OV8xx0_SID) < 0)
				goto error;

			if (init_ov_sensor(sd) < 0) {
				PDEBUG(D_ERR,
					"Can't determine sensor slave IDs");
				goto error;
			} else {
				if (ov8xx0_configure(sd) < 0) {
					PDEBUG(D_ERR,
					   "Failed to configure OV8xx0 sensor");
					goto error;
				}
			}
		} else {
			if (ov6xx0_configure(sd) < 0) {
				PDEBUG(D_ERR, "Failed to configure OV6xx0");
				goto error;
			}
		}
	} else {
		if (ov7xx0_configure(sd) < 0) {
			PDEBUG(D_ERR, "Failed to configure OV7xx0");
			goto error;
		}
	}

	cam = &gspca_dev->cam;
	cam->epaddr = OV511_ENDPOINT_ADDRESS;
	if (sd->maxwidth == 640) {
		cam->cam_mode = vga_mode;
		cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
	} else {
		cam->cam_mode = sif_mode;
		cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
	}
	sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
	sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
	sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
1404 1405
	sd->hflip = HFLIP_DEF;
	sd->vflip = VFLIP_DEF;
1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427
	return 0;
error:
	PDEBUG(D_ERR, "OV519 Config failed");
	return -EBUSY;
}

/* this function is called at open time */
static int sd_open(struct gspca_dev *gspca_dev)
{
	return 0;
}

/* Sets up the OV519 with the given image parameters
 *
 * OV519 needs a completely different approach, until we can figure out what
 * the individual registers do.
 *
 * Do not put any sensor-specific code in here (including I2C I/O functions)
 */
static int ov519_mode_init_regs(struct sd *sd,
				int width, int height)
{
1428
	static const struct ov_regvals mode_init_519_ov7670[] = {
1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450
		{ 0x5d,	0x03 }, /* Turn off suspend mode */
		{ 0x53,	0x9f }, /* was 9b in 1.65-1.08 */
		{ 0x54,	0x0f }, /* bit2 (jpeg enable) */
		{ 0xa2,	0x20 }, /* a2-a5 are undocumented */
		{ 0xa3,	0x18 },
		{ 0xa4,	0x04 },
		{ 0xa5,	0x28 },
		{ 0x37,	0x00 },	/* SetUsbInit */
		{ 0x55,	0x02 }, /* 4.096 Mhz audio clock */
		/* Enable both fields, YUV Input, disable defect comp (why?) */
		{ 0x20,	0x0c },
		{ 0x21,	0x38 },
		{ 0x22,	0x1d },
		{ 0x17,	0x50 }, /* undocumented */
		{ 0x37,	0x00 }, /* undocumented */
		{ 0x40,	0xff }, /* I2C timeout counter */
		{ 0x46,	0x00 }, /* I2C clock prescaler */
		{ 0x59,	0x04 },	/* new from windrv 090403 */
		{ 0xff,	0x00 }, /* undocumented */
		/* windows reads 0x55 at this point, why? */
	};

1451
	static const struct ov_regvals mode_init_519[] = {
1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486
		{ 0x5d,	0x03 }, /* Turn off suspend mode */
		{ 0x53,	0x9f }, /* was 9b in 1.65-1.08 */
		{ 0x54,	0x0f }, /* bit2 (jpeg enable) */
		{ 0xa2,	0x20 }, /* a2-a5 are undocumented */
		{ 0xa3,	0x18 },
		{ 0xa4,	0x04 },
		{ 0xa5,	0x28 },
		{ 0x37,	0x00 },	/* SetUsbInit */
		{ 0x55,	0x02 }, /* 4.096 Mhz audio clock */
		/* Enable both fields, YUV Input, disable defect comp (why?) */
		{ 0x22,	0x1d },
		{ 0x17,	0x50 }, /* undocumented */
		{ 0x37,	0x00 }, /* undocumented */
		{ 0x40,	0xff }, /* I2C timeout counter */
		{ 0x46,	0x00 }, /* I2C clock prescaler */
		{ 0x59,	0x04 },	/* new from windrv 090403 */
		{ 0xff,	0x00 }, /* undocumented */
		/* windows reads 0x55 at this point, why? */
	};

/* int hi_res; */

	PDEBUG(D_CONF, "mode init %dx%d", width, height);

/*	if (width >= 800 && height >= 600)
		hi_res = 1;
	else
		hi_res = 0; */

/*	if (ov51x_stop(sd) < 0)
		return -EIO; */

	/******** Set the mode ********/
	if (sd->sensor != SEN_OV7670) {
		if (write_regvals(sd, mode_init_519,
1487
				  ARRAY_SIZE(mode_init_519)))
1488 1489 1490
			return -EIO;
	} else {
		if (write_regvals(sd, mode_init_519_ov7670,
1491
				  ARRAY_SIZE(mode_init_519_ov7670)))
1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712
			return -EIO;
	}

	if (sd->sensor == SEN_OV7640) {
		/* Select 8-bit input mode */
		reg_w_mask(sd, OV519_CAM_DFR, 0x10, 0x10);
	}

	reg_w(sd, OV519_CAM_H_SIZE,	width >> 4);
	reg_w(sd, OV519_CAM_V_SIZE,	height >> 3);
	reg_w(sd, OV519_CAM_X_OFFSETL,	0x00);
	reg_w(sd, OV519_CAM_X_OFFSETH,	0x00);
	reg_w(sd, OV519_CAM_Y_OFFSETL,	0x00);
	reg_w(sd, OV519_CAM_Y_OFFSETH,	0x00);
	reg_w(sd, OV519_CAM_DIVIDER,	0x00);
	reg_w(sd, OV519_CAM_FORMAT,	0x03); /* YUV422 */
	reg_w(sd, 0x26,			0x00); /* Undocumented */

	/******** Set the framerate ********/
	if (frame_rate > 0)
		sd->frame_rate = frame_rate;

/* FIXME: These are only valid at the max resolution. */
	sd->clockdiv = 0;
	if (sd->sensor == SEN_OV7640) {
		switch (sd->frame_rate) {
/*jfm: default was 30 fps */
		case 30:
			reg_w(sd, 0xa4, 0x0c);
			reg_w(sd, 0x23, 0xff);
			break;
		case 25:
			reg_w(sd, 0xa4, 0x0c);
			reg_w(sd, 0x23, 0x1f);
			break;
		case 20:
			reg_w(sd, 0xa4, 0x0c);
			reg_w(sd, 0x23, 0x1b);
			break;
		default:
/*		case 15: */
			reg_w(sd, 0xa4, 0x04);
			reg_w(sd, 0x23, 0xff);
			sd->clockdiv = 1;
			break;
		case 10:
			reg_w(sd, 0xa4, 0x04);
			reg_w(sd, 0x23, 0x1f);
			sd->clockdiv = 1;
			break;
		case 5:
			reg_w(sd, 0xa4, 0x04);
			reg_w(sd, 0x23, 0x1b);
			sd->clockdiv = 1;
			break;
		}
	} else if (sd->sensor == SEN_OV8610) {
		switch (sd->frame_rate) {
		default:	/* 15 fps */
/*		case 15: */
			reg_w(sd, 0xa4, 0x06);
			reg_w(sd, 0x23, 0xff);
			break;
		case 10:
			reg_w(sd, 0xa4, 0x06);
			reg_w(sd, 0x23, 0x1f);
			break;
		case 5:
			reg_w(sd, 0xa4, 0x06);
			reg_w(sd, 0x23, 0x1b);
			break;
		}
		sd->clockdiv = 0;
	} else if (sd->sensor == SEN_OV7670) { /* guesses, based on 7640 */
		PDEBUG(D_STREAM, "Setting framerate to %d fps",
				 (sd->frame_rate == 0) ? 15 : sd->frame_rate);
		switch (sd->frame_rate) {
		case 30:
			reg_w(sd, 0xa4, 0x10);
			reg_w(sd, 0x23, 0xff);
			break;
		case 20:
			reg_w(sd, 0xa4, 0x10);
			reg_w(sd, 0x23, 0x1b);
			break;
		default: /* 15 fps */
/*			case 15: */
			reg_w(sd, 0xa4, 0x10);
			reg_w(sd, 0x23, 0xff);
			sd->clockdiv = 1;
			break;
		}
	}

/*	if (ov51x_restart(sd) < 0)
		return -EIO; */

	/* Reset it just for good measure */
/*	if (ov51x_reset(sd, OV511_RESET_NOREGS) < 0)
		return -EIO; */
	return 0;
}

static int mode_init_ov_sensor_regs(struct sd *sd,
				struct ovsensor_window *win)
{
	int qvga = win->quarter;

	/******** Mode (VGA/QVGA) and sensor specific regs ********/
	switch (sd->sensor) {
	case SEN_OV8610:
		/* For OV8610 qvga means qsvga */
		i2c_w_mask(sd, OV7610_REG_COM_C, qvga ? (1 << 5) : 0, 1 << 5);
		break;
	case SEN_OV7610:
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		break;
	case SEN_OV7620:
/*		i2c_w(sd, 0x2b, 0x00); */
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
		i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
		i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
		i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
		i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
		i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
		break;
	case SEN_OV76BE:
/*		i2c_w(sd, 0x2b, 0x00); */
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		break;
	case SEN_OV7640:
/*		i2c_w(sd, 0x2b, 0x00); */
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
/*		i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a); */
/*		i2c_w(sd, 0x25, qvga ? 0x30 : 0x60); */
/*		i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40); */
/*		i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0); */
/*		i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20); */
		break;
	case SEN_OV7670:
		/* set COM7_FMT_VGA or COM7_FMT_QVGA
		 * do we need to set anything else?
		 *	HSTART etc are set in set_ov_sensor_window itself */
		i2c_w_mask(sd, OV7670_REG_COM7,
			 qvga ? OV7670_COM7_FMT_QVGA : OV7670_COM7_FMT_VGA,
			 OV7670_COM7_FMT_MASK);
		break;
	case SEN_OV6620:
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		break;
	case SEN_OV6630:
		i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
		break;
	default:
		return -EINVAL;
	}

	/******** Palette-specific regs ********/
/* Need to do work here for the OV7670 */

		if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
			/* not valid on the OV6620/OV7620/6630? */
			i2c_w_mask(sd, 0x0e, 0x00, 0x40);
		}

		/* The OV518 needs special treatment. Although both the OV518
		 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
		 * bus is actually used. The UV bus is tied to ground.
		 * Therefore, the OV6630 needs to be in 8-bit multiplexed
		 * output mode */

		/* OV7640 is 8-bit only */

		if (sd->sensor != SEN_OV6630 && sd->sensor != SEN_OV7640)
			i2c_w_mask(sd, 0x13, 0x00, 0x20);
/*	} */

	/******** Clock programming ********/
	/* The OV6620 needs special handling. This prevents the
	 * severe banding that normally occurs */
	if (sd->sensor == SEN_OV6620) {

		/* Clock down */
		i2c_w(sd, 0x2a, 0x04);
		i2c_w(sd, 0x11, win->clockdiv);
		i2c_w(sd, 0x2a, 0x84);
		/* This next setting is critical. It seems to improve
		 * the gain or the contrast. The "reserved" bits seem
		 * to have some effect in this case. */
		i2c_w(sd, 0x2d, 0x85);
	} else if (win->clockdiv >= 0) {
		i2c_w(sd, 0x11, win->clockdiv);
	}

	/******** Special Features ********/
/* no evidence this is possible with OV7670, either */
	/* Test Pattern */
	if (sd->sensor != SEN_OV7640 && sd->sensor != SEN_OV7670)
		i2c_w_mask(sd, 0x12, 0x00, 0x02);

	/* Enable auto white balance */
	if (sd->sensor == SEN_OV7670)
		i2c_w_mask(sd, OV7670_REG_COM8, OV7670_COM8_AWB,
				OV7670_COM8_AWB);
	else
		i2c_w_mask(sd, 0x12, 0x04, 0x04);

	/* This will go away as soon as ov51x_mode_init_sensor_regs() */
	/* is fully tested. */
	/* 7620/6620/6630? don't have register 0x35, so play it safe */
	if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
		if (win->width == 640 /*&& win->height == 480*/)
			i2c_w(sd, 0x35, 0x9e);
		else
			i2c_w(sd, 0x35, 0x1e);
	}
	return 0;
}

1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732
static void sethflip(struct sd *sd)
{
	if (sd->gspca_dev.streaming)
		ov51x_stop(sd);
	i2c_w_mask(sd, OV7670_REG_MVFP,
		OV7670_MVFP_MIRROR * sd->hflip, OV7670_MVFP_MIRROR);
	if (sd->gspca_dev.streaming)
		ov51x_restart(sd);
}

static void setvflip(struct sd *sd)
{
	if (sd->gspca_dev.streaming)
		ov51x_stop(sd);
	i2c_w_mask(sd, OV7670_REG_MVFP,
		OV7670_MVFP_VFLIP * sd->vflip, OV7670_MVFP_VFLIP);
	if (sd->gspca_dev.streaming)
		ov51x_restart(sd);
}

1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861
static int set_ov_sensor_window(struct sd *sd,
				struct ovsensor_window *win)
{
	int hwsbase, hwebase, vwsbase, vwebase, hwscale, vwscale;
	int ret, hstart, hstop, vstop, vstart;
	__u8 v;

	/* The different sensor ICs handle setting up of window differently.
	 * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!! */
	switch (sd->sensor) {
	case SEN_OV8610:
		hwsbase = 0x1e;
		hwebase = 0x1e;
		vwsbase = 0x02;
		vwebase = 0x02;
		break;
	case SEN_OV7610:
	case SEN_OV76BE:
		hwsbase = 0x38;
		hwebase = 0x3a;
		vwsbase = vwebase = 0x05;
		break;
	case SEN_OV6620:
	case SEN_OV6630:
		hwsbase = 0x38;
		hwebase = 0x3a;
		vwsbase = 0x05;
		vwebase = 0x06;
		break;
	case SEN_OV7620:
		hwsbase = 0x2f;		/* From 7620.SET (spec is wrong) */
		hwebase = 0x2f;
		vwsbase = vwebase = 0x05;
		break;
	case SEN_OV7640:
		hwsbase = 0x1a;
		hwebase = 0x1a;
		vwsbase = vwebase = 0x03;
		break;
	case SEN_OV7670:
		/*handling of OV7670 hardware sensor start and stop values
		 * is very odd, compared to the other OV sensors */
		vwsbase = vwebase = hwebase = hwsbase = 0x00;
		break;
	default:
		return -EINVAL;
	}

	switch (sd->sensor) {
	case SEN_OV6620:
	case SEN_OV6630:
		if (win->quarter) {	/* QCIF */
			hwscale = 0;
			vwscale = 0;
		} else {		/* CIF */
			hwscale = 1;
			vwscale = 1;	/* The datasheet says 0;
					 * it's wrong */
		}
		break;
	case SEN_OV8610:
		if (win->quarter) {	/* QSVGA */
			hwscale = 1;
			vwscale = 1;
		} else {		/* SVGA */
			hwscale = 2;
			vwscale = 2;
		}
		break;
	default:			/* SEN_OV7xx0 */
		if (win->quarter) {	/* QVGA */
			hwscale = 1;
			vwscale = 0;
		} else {		/* VGA */
			hwscale = 2;
			vwscale = 1;
		}
	}

	ret = mode_init_ov_sensor_regs(sd, win);
	if (ret < 0)
		return ret;

	if (sd->sensor == SEN_OV8610) {
		i2c_w_mask(sd, 0x2d, 0x05, 0x40);
				/* old 0x95, new 0x05 from windrv 090403 */
						/* bits 5-7: reserved */
		i2c_w_mask(sd, 0x28, 0x20, 0x20);
					/* bit 5: progressive mode on */
	}

	/* The below is wrong for OV7670s because their window registers
	 * only store the high bits in 0x17 to 0x1a */

	/* SRH Use sd->max values instead of requested win values */
	/* SCS Since we're sticking with only the max hardware widths
	 * for a given mode */
	/* I can hard code this for OV7670s */
	/* Yes, these numbers do look odd, but they're tested and work! */
	if (sd->sensor == SEN_OV7670) {
		if (win->quarter) {	/* QVGA from ov7670.c by
					 * Jonathan Corbet */
			hstart = 164;
			hstop = 20;
			vstart = 14;
			vstop = 494;
		} else {		/* VGA */
			hstart = 158;
			hstop = 14;
			vstart = 10;
			vstop = 490;
		}
		/* OV7670 hardware window registers are split across
		 * multiple locations */
		i2c_w(sd, OV7670_REG_HSTART, (hstart >> 3) & 0xff);
		i2c_w(sd, OV7670_REG_HSTOP, (hstop >> 3) & 0xff);
		v = i2c_r(sd, OV7670_REG_HREF);
		v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x07);
		msleep(10);	/* need to sleep between read and write to
				 * same reg! */
		i2c_w(sd, OV7670_REG_HREF, v);

		i2c_w(sd, OV7670_REG_VSTART, (vstart >> 2) & 0xff);
		i2c_w(sd, OV7670_REG_VSTOP, (vstop >> 2) & 0xff);
		v = i2c_r(sd, OV7670_REG_VREF);
		v = (v & 0xc0) | ((vstop & 0x3) << 2) | (vstart & 0x03);
		msleep(10);	/* need to sleep between read and write to
				 * same reg! */
		i2c_w(sd, OV7670_REG_VREF, v);
1862 1863
		sethflip(sd);
		setvflip(sd);
1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941
	} else {
		i2c_w(sd, 0x17, hwsbase + (win->x >> hwscale));
		i2c_w(sd, 0x18, hwebase + ((win->x + win->width) >> hwscale));
		i2c_w(sd, 0x19, vwsbase + (win->y >> vwscale));
		i2c_w(sd, 0x1a, vwebase + ((win->y + win->height) >> vwscale));
	}
	return 0;
}

static int ov_sensor_mode_setup(struct sd *sd,
				int width, int height)
{
	struct ovsensor_window win;

/*	win.format = mode; */

	/* Unless subcapture is enabled,
	 * center the image window and downsample
	 * if possible to increase the field of view */
	/* NOTE: OV518(+) and OV519 does downsampling on its own */
	win.width = width;
	win.height = height;
	if (width == sd->maxwidth)
		win.quarter = 0;
	else
		win.quarter = 1;

	/* Center it */
	win.x = (win.width - width) / 2;
	win.y = (win.height - height) / 2;

	/* Clock is determined by OV519 frame rate code */
	win.clockdiv = sd->clockdiv;

	PDEBUG(D_CONF, "Setting clock divider to %d", win.clockdiv);
	return set_ov_sensor_window(sd, &win);
}

/* -- start the camera -- */
static void sd_start(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int ret;


	ret = ov519_mode_init_regs(sd, gspca_dev->width, gspca_dev->height);
	if (ret < 0)
		goto out;
	ret = ov_sensor_mode_setup(sd, gspca_dev->width, gspca_dev->height);
	if (ret < 0)
		goto out;

	ret = ov51x_restart((struct sd *) gspca_dev);
	if (ret < 0)
		goto out;
	PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
	ov51x_led_control(sd, 1);
	return;
out:
	PDEBUG(D_ERR, "camera start error:%d", ret);
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
	ov51x_stop((struct sd *) gspca_dev);
	ov51x_led_control((struct sd *) gspca_dev, 0);
}

static void sd_stop0(struct gspca_dev *gspca_dev)
{
}

static void sd_close(struct gspca_dev *gspca_dev)
{
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			struct gspca_frame *frame,	/* target */
1942
			__u8 *data,			/* isoc packet */
1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
			int len)			/* iso packet length */
{
	/* Header of ov519 is 16 bytes:
	 *     Byte     Value      Description
	 *	0	0xff	magic
	 *	1	0xff	magic
	 *	2	0xff	magic
	 *	3	0xXX	0x50 = SOF, 0x51 = EOF
	 *	9	0xXX	0x01 initial frame without data,
	 *			0x00 standard frame with image
	 *	14	Lo	in EOF: length of image data / 8
	 *	15	Hi
	 */

	if (data[0] == 0xff && data[1] == 0xff && data[2] == 0xff) {
		switch (data[3]) {
		case 0x50:		/* start of frame */
#define HDRSZ 16
			data += HDRSZ;
			len -= HDRSZ;
#undef HDRSZ
			if (data[0] == 0xff || data[1] == 0xd8)
				gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
						data, len);
			else
				gspca_dev->last_packet_type = DISCARD_PACKET;
			return;
		case 0x51:		/* end of frame */
			if (data[9] != 0)
				gspca_dev->last_packet_type = DISCARD_PACKET;
			gspca_frame_add(gspca_dev, LAST_PACKET, frame,
					data, 0);
			return;
		}
	}

	/* intermediate packet */
	gspca_frame_add(gspca_dev, INTER_PACKET, frame,
			data, len);
}

/* -- management routines -- */

static void setbrightness(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int val;
/*	int was_streaming; */

	val = sd->brightness;
	PDEBUG(D_CONF, "brightness:%d", val);
/*	was_streaming = gspca_dev->streaming;
 *	if (was_streaming)
 *		ov51x_stop(sd); */
	switch (sd->sensor) {
	case SEN_OV8610:
	case SEN_OV7610:
	case SEN_OV76BE:
	case SEN_OV6620:
	case SEN_OV6630:
	case SEN_OV7640:
		i2c_w(sd, OV7610_REG_BRT, val);
		break;
	case SEN_OV7620:
		/* 7620 doesn't like manual changes when in auto mode */
/*fixme
 *		if (!sd->auto_brt) */
			i2c_w(sd, OV7610_REG_BRT, val);
		break;
	case SEN_OV7670:
/*jfm - from windblows
 *		i2c_w_mask(sd, OV7670_REG_COM8, 0, OV7670_COM8_AEC); */
		i2c_w(sd, OV7670_REG_BRIGHT, ov7670_abs_to_sm(val));
		break;
	}
/*	if (was_streaming)
 *		ov51x_restart(sd); */
}

static void setcontrast(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int val;
/*	int was_streaming; */

	val = sd->contrast;
	PDEBUG(D_CONF, "contrast:%d", val);
/*	was_streaming = gspca_dev->streaming;
	if (was_streaming)
		ov51x_stop(sd); */
	switch (sd->sensor) {
	case SEN_OV7610:
	case SEN_OV6620:
		i2c_w(sd, OV7610_REG_CNT, val);
		break;
	case SEN_OV6630:
		i2c_w_mask(sd, OV7610_REG_CNT, val >> 4, 0x0f);
	case SEN_OV8610: {
2041
		static const __u8 ctab[] = {
2042 2043 2044 2045 2046 2047 2048 2049
			0x03, 0x09, 0x0b, 0x0f, 0x53, 0x6f, 0x35, 0x7f
		};

		/* Use Y gamma control instead. Bit 0 enables it. */
		i2c_w(sd, 0x64, ctab[val >> 5]);
		break;
	    }
	case SEN_OV7620: {
2050
		static const __u8 ctab[] = {
2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161
			0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
			0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
		};

		/* Use Y gamma control instead. Bit 0 enables it. */
		i2c_w(sd, 0x64, ctab[val >> 4]);
		break;
	    }
	case SEN_OV7640:
		/* Use gain control instead. */
		i2c_w(sd, OV7610_REG_GAIN, val >> 2);
		break;
	case SEN_OV7670:
		/* check that this isn't just the same as ov7610 */
		i2c_w(sd, OV7670_REG_CONTRAS, val >> 1);
		break;
	}
/*	if (was_streaming)
		ov51x_restart(sd); */
}

static void setcolors(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int val;
/*	int was_streaming; */

	val = sd->colors;
	PDEBUG(D_CONF, "saturation:%d", val);
/*	was_streaming = gspca_dev->streaming;
	if (was_streaming)
		ov51x_stop(sd); */
	switch (sd->sensor) {
	case SEN_OV8610:
	case SEN_OV7610:
	case SEN_OV76BE:
	case SEN_OV6620:
	case SEN_OV6630:
		i2c_w(sd, OV7610_REG_SAT, val);
		break;
	case SEN_OV7620:
		/* Use UV gamma control instead. Bits 0 & 7 are reserved. */
/*		rc = ov_i2c_write(sd->dev, 0x62, (val >> 9) & 0x7e);
		if (rc < 0)
			goto out; */
		i2c_w(sd, OV7610_REG_SAT, val);
		break;
	case SEN_OV7640:
		i2c_w(sd, OV7610_REG_SAT, val & 0xf0);
		break;
	case SEN_OV7670:
		/* supported later once I work out how to do it
		 * transparently fail now! */
		/* set REG_COM13 values for UV sat auto mode */
		break;
	}
/*	if (was_streaming)
		ov51x_restart(sd); */
}

static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->brightness = val;
	setbrightness(gspca_dev);
	return 0;
}

static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->brightness;
	return 0;
}

static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->contrast = val;
	setcontrast(gspca_dev);
	return 0;
}

static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->contrast;
	return 0;
}

static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->colors = val;
	setcolors(gspca_dev);
	return 0;
}

static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->colors;
	return 0;
}

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static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->hflip = val;
	sethflip(sd);
	return 0;
}

static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->hflip;
	return 0;
}

static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	sd->vflip = val;
	setvflip(sd);
	return 0;
}

static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
{
	struct sd *sd = (struct sd *) gspca_dev;

	*val = sd->vflip;
	return 0;
}

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/* sub-driver description */
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static const struct sd_desc sd_desc = {
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	.name = MODULE_NAME,
	.ctrls = sd_ctrls,
	.nctrls = ARRAY_SIZE(sd_ctrls),
	.config = sd_config,
	.open = sd_open,
	.start = sd_start,
	.stopN = sd_stopN,
	.stop0 = sd_stop0,
	.close = sd_close,
	.pkt_scan = sd_pkt_scan,
};

/* -- module initialisation -- */
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static const __devinitdata struct usb_device_id device_table[] = {
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	{USB_DEVICE(0x041e, 0x4052)},
	{USB_DEVICE(0x041e, 0x405f)},
	{USB_DEVICE(0x041e, 0x4060)},
	{USB_DEVICE(0x041e, 0x4061)},
	{USB_DEVICE(0x041e, 0x4064)},
	{USB_DEVICE(0x041e, 0x4068)},
	{USB_DEVICE(0x045e, 0x028c)},
	{USB_DEVICE(0x054c, 0x0154)},
	{USB_DEVICE(0x054c, 0x0155)},
	{USB_DEVICE(0x05a9, 0x0519)},
	{USB_DEVICE(0x05a9, 0x0530)},
	{USB_DEVICE(0x05a9, 0x4519)},
	{USB_DEVICE(0x05a9, 0x8519)},
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	{}
};
#undef DVNAME
MODULE_DEVICE_TABLE(usb, device_table);

/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
				THIS_MODULE);
}

static struct usb_driver sd_driver = {
	.name = MODULE_NAME,
	.id_table = device_table,
	.probe = sd_probe,
	.disconnect = gspca_disconnect,
};

/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
	if (usb_register(&sd_driver) < 0)
		return -1;
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	PDEBUG(D_PROBE, "registered");
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	return 0;
}
static void __exit sd_mod_exit(void)
{
	usb_deregister(&sd_driver);
	PDEBUG(D_PROBE, "deregistered");
}

module_init(sd_mod_init);
module_exit(sd_mod_exit);

module_param(frame_rate, int, 0644);
MODULE_PARM_DESC(frame_rate, "Frame rate (5, 10, 15, 20 or 30 fps)");