[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / gspca / ov534.c

/*
 * ov534/ov772x gspca driver
 * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
 *
 * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
 * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
 * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
 *
 * 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 "ov534"

#include "gspca.h"

#define OV534_REG_ADDRESS	0xf1	/* ? */
#define OV534_REG_SUBADDR	0xf2
#define OV534_REG_WRITE		0xf3
#define OV534_REG_READ		0xf4
#define OV534_REG_OPERATION	0xf5
#define OV534_REG_STATUS	0xf6

#define OV534_OP_WRITE_3	0x37
#define OV534_OP_WRITE_2	0x33
#define OV534_OP_READ_2		0xf9

#define CTRL_TIMEOUT 500

MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
MODULE_LICENSE("GPL");

/* global parameters */
static int frame_rate;

/* specific webcam descriptor */
struct sd {
	struct gspca_dev gspca_dev;	/* !! must be the first item */
};

/* V4L2 controls supported by the driver */
static struct ctrl sd_ctrls[] = {
};

static struct v4l2_pix_format vga_mode[] = {
	{640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
	 .bytesperline = 640 * 2,
	 .sizeimage = 640 * 480 * 2,
	 .colorspace = V4L2_COLORSPACE_JPEG,
	 .priv = 0},
};

static void ov534_reg_write(struct usb_device *udev, u16 reg, u8 val)
{
	u8 data = val;
	int ret;

	PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
	ret = usb_control_msg(udev,
			      usb_sndctrlpipe(udev, 0),
			      0x1,
			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			      0x0, reg, &data, 1, CTRL_TIMEOUT);
	if (ret < 0)
		PDEBUG(D_ERR, "write failed");
}

static u8 ov534_reg_read(struct usb_device *udev, u16 reg)
{
	u8 data;
	int ret;

	ret = usb_control_msg(udev,
			      usb_rcvctrlpipe(udev, 0),
			      0x1,
			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			      0x0, reg, &data, 1, CTRL_TIMEOUT);
	PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, data);
	if (ret < 0)
		PDEBUG(D_ERR, "read failed");
	return data;
}

/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 * (direction and output)? */
static void ov534_set_led(struct usb_device *udev, int status)
{
	u8 data;

	PDEBUG(D_CONF, "led status: %d", status);

	data = ov534_reg_read(udev, 0x21);
	data |= 0x80;
	ov534_reg_write(udev, 0x21, data);

	data = ov534_reg_read(udev, 0x23);
	if (status)
		data |= 0x80;
	else
		data &= ~(0x80);

	ov534_reg_write(udev, 0x23, data);
}

static int sccb_check_status(struct usb_device *udev)
{
	u8 data;
	int i;

	for (i = 0; i < 5; i++) {
		data = ov534_reg_read(udev, OV534_REG_STATUS);

		switch (data) {
		case 0x00:
			return 1;
		case 0x04:
			return 0;
		case 0x03:
			break;
		default:
			PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5\n",
			       data, i + 1);
		}
	}
	return 0;
}

static void sccb_reg_write(struct usb_device *udev, u16 reg, u8 val)
{
	PDEBUG(D_USBO, "reg: 0x%04x, val: 0x%02x", reg, val);
	ov534_reg_write(udev, OV534_REG_SUBADDR, reg);
	ov534_reg_write(udev, OV534_REG_WRITE, val);
	ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_3);

	if (!sccb_check_status(udev))
		PDEBUG(D_ERR, "sccb_reg_write failed");
}

static const __u8 ov534_reg_initdata[][2] = {
	{ 0xe7, 0x3a },

	{ OV534_REG_ADDRESS, 0x42 }, /* select OV772x sensor */

	{ 0xc2, 0x0c },
	{ 0x88, 0xf8 },
	{ 0xc3, 0x69 },
	{ 0x89, 0xff },
	{ 0x76, 0x03 },
	{ 0x92, 0x01 },
	{ 0x93, 0x18 },
	{ 0x94, 0x10 },
	{ 0x95, 0x10 },
	{ 0xe2, 0x00 },
	{ 0xe7, 0x3e },

	{ 0x1c, 0x0a },
	{ 0x1d, 0x22 },
	{ 0x1d, 0x06 },

	{ 0x96, 0x00 },

	{ 0x97, 0x20 },
	{ 0x97, 0x20 },
	{ 0x97, 0x20 },
	{ 0x97, 0x0a },
	{ 0x97, 0x3f },
	{ 0x97, 0x4a },
	{ 0x97, 0x20 },
	{ 0x97, 0x15 },
	{ 0x97, 0x0b },

	{ 0x8e, 0x40 },
	{ 0x1f, 0x81 },
	{ 0x34, 0x05 },
	{ 0xe3, 0x04 },
	{ 0x88, 0x00 },
	{ 0x89, 0x00 },
	{ 0x76, 0x00 },
	{ 0xe7, 0x2e },
	{ 0x31, 0xf9 },
	{ 0x25, 0x42 },
	{ 0x21, 0xf0 },

	{ 0x1c, 0x00 },
	{ 0x1d, 0x40 },
	{ 0x1d, 0x02 },
	{ 0x1d, 0x00 },
	{ 0x1d, 0x02 },
	{ 0x1d, 0x57 },
	{ 0x1d, 0xff },

	{ 0x8d, 0x1c },
	{ 0x8e, 0x80 },
	{ 0xe5, 0x04 },

	{ 0xc0, 0x50 },
	{ 0xc1, 0x3c },
	{ 0xc2, 0x0c },
};

static const __u8 ov772x_reg_initdata[][2] = {
	{ 0x12, 0x80 },
	{ 0x11, 0x01 },

	{ 0x3d, 0x03 },
	{ 0x17, 0x26 },
	{ 0x18, 0xa0 },
	{ 0x19, 0x07 },
	{ 0x1a, 0xf0 },
	{ 0x32, 0x00 },
	{ 0x29, 0xa0 },
	{ 0x2c, 0xf0 },
	{ 0x65, 0x20 },
	{ 0x11, 0x01 },
	{ 0x42, 0x7f },
	{ 0x63, 0xe0 },
	{ 0x64, 0xff },
	{ 0x66, 0x00 },
	{ 0x13, 0xf0 },
	{ 0x0d, 0x41 },
	{ 0x0f, 0xc5 },
	{ 0x14, 0x11 },

	{ 0x22, 0x7f },
	{ 0x23, 0x03 },
	{ 0x24, 0x40 },
	{ 0x25, 0x30 },
	{ 0x26, 0xa1 },
	{ 0x2a, 0x00 },
	{ 0x2b, 0x00 },
	{ 0x6b, 0xaa },
	{ 0x13, 0xff },

	{ 0x90, 0x05 },
	{ 0x91, 0x01 },
	{ 0x92, 0x03 },
	{ 0x93, 0x00 },
	{ 0x94, 0x60 },
	{ 0x95, 0x3c },
	{ 0x96, 0x24 },
	{ 0x97, 0x1e },
	{ 0x98, 0x62 },
	{ 0x99, 0x80 },
	{ 0x9a, 0x1e },
	{ 0x9b, 0x08 },
	{ 0x9c, 0x20 },
	{ 0x9e, 0x81 },

	{ 0xa6, 0x04 },
	{ 0x7e, 0x0c },
	{ 0x7f, 0x16 },
	{ 0x80, 0x2a },
	{ 0x81, 0x4e },
	{ 0x82, 0x61 },
	{ 0x83, 0x6f },
	{ 0x84, 0x7b },
	{ 0x85, 0x86 },
	{ 0x86, 0x8e },
	{ 0x87, 0x97 },
	{ 0x88, 0xa4 },
	{ 0x89, 0xaf },
	{ 0x8a, 0xc5 },
	{ 0x8b, 0xd7 },
	{ 0x8c, 0xe8 },
	{ 0x8d, 0x20 },

	{ 0x0c, 0x90 },

	{ 0x2b, 0x00 },
	{ 0x22, 0x7f },
	{ 0x23, 0x03 },
	{ 0x11, 0x01 },
	{ 0x0c, 0xd0 },
	{ 0x64, 0xff },
	{ 0x0d, 0x41 },

	{ 0x14, 0x41 },
	{ 0x0e, 0xcd },
	{ 0xac, 0xbf },
	{ 0x8e, 0x00 },
	{ 0x0c, 0xd0 }
};


/* setup method */
static void ov534_setup(struct usb_device *udev)
{
	int i;

	/* Initialize bridge chip */
	for (i = 0; i < ARRAY_SIZE(ov534_reg_initdata); i++)
		ov534_reg_write(udev, ov534_reg_initdata[i][0],
				ov534_reg_initdata[i][1]);

	ov534_set_led(udev, 1);

	/* Initialize sensor */
	for (i = 0; i < ARRAY_SIZE(ov772x_reg_initdata); i++)
		sccb_reg_write(udev, ov772x_reg_initdata[i][0],
			       ov772x_reg_initdata[i][1]);

	ov534_reg_write(udev, 0xe0, 0x09);
	ov534_set_led(udev, 0);
}

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

	cam = &gspca_dev->cam;

	cam->epaddr = 0x01;
	cam->cam_mode = vga_mode;
	cam->nmodes = ARRAY_SIZE(vga_mode);

	/*
	 * On some architectures we need contiguous memory for urb buffers, and
	 * in low memory situation 'sizeimage' can be too much.
	 * 16kiB chunks should be available even when we are low in memory.
	 * TODO: CHECK this description: is the problem arch-dependent or more
	 *       general?
	 */
	cam->bulk_size = 16 * 1024;
	cam->bulk_nurbs = 2;

	PDEBUG(D_PROBE, "bulk_size = %d", cam->bulk_size);

	return 0;
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
	int fr;

	ov534_setup(gspca_dev->dev);

	fr = frame_rate;

	switch (fr) {
	case 50:
		sccb_reg_write(gspca_dev->dev, 0x11, 0x01);
		sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
		ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
		break;
	case 40:
		sccb_reg_write(gspca_dev->dev, 0x11, 0x02);
		sccb_reg_write(gspca_dev->dev, 0x0d, 0xc1);
		ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
		break;
/*	case 30: */
	default:
		fr = 30;
		sccb_reg_write(gspca_dev->dev, 0x11, 0x04);
		sccb_reg_write(gspca_dev->dev, 0x0d, 0x81);
		ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
		break;
	case 15:
		sccb_reg_write(gspca_dev->dev, 0x11, 0x03);
		sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
		ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
		break;
	}

	PDEBUG(D_PROBE, "frame_rate: %d", fr);

	return 0;
}

static int sd_start(struct gspca_dev *gspca_dev)
{
	struct gspca_frame *frame;

	/* start streaming data */
	ov534_set_led(gspca_dev->dev, 1);
	ov534_reg_write(gspca_dev->dev, 0xe0, 0x00);

	frame = gspca_get_i_frame(gspca_dev);
	if (frame == NULL) {
		PDEBUG(D_ERR, "NULL frame!");
		return -1;
	}
	gspca_frame_add(gspca_dev, FIRST_PACKET, frame, gspca_dev->usb_buf, 0);

	return 0;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
	/* stop streaming data */
	ov534_reg_write(gspca_dev->dev, 0xe0, 0x09);
	ov534_set_led(gspca_dev->dev, 0);
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
			__u8 *data, int len)
{
	/*
	 * The current camera setup doesn't stream the last pixel, so we set it
	 * to a dummy value
	 */
	__u8 last[4] = { 0, 0, 0, 0 };
	int framesize = frame->v4l2_buf.length;

	PDEBUG(D_PACK, "");
	PDEBUG(D_PACK, "** packet len = %d, framesize = %d", len, framesize);
	PDEBUG(D_PACK, "** frame->data_end - frame->data + len = %d",
			frame->data_end - frame->data + len);

	if (frame->data_end - frame->data + len == framesize - 4) {
		PDEBUG(D_PACK, "   end of frame!");
		gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
		frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, last, 4);
		gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, 0);
	} else
		gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}

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

/* -- module initialisation -- */
static const __devinitdata struct usb_device_id device_table[] = {
	{USB_DEVICE(0x06f8, 0x3002)},	/* Hercules Blog Webcam */
	{USB_DEVICE(0x06f8, 0x3003)},	/* Hercules Dualpix HD Weblog */
	{USB_DEVICE(0x1415, 0x2000)},	/* Sony HD Eye for PS3 (SLEH 00201) */
	{}
};

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,
#ifdef CONFIG_PM
	.suspend    = gspca_suspend,
	.resume     = gspca_resume,
#endif
};

/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
	if (usb_register(&sd_driver) < 0)
		return -1;
	PDEBUG(D_PROBE, "registered");
	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 (15, 30, 40, 50)");
Commit	Line	Data
fbb4c6d2 AO	1	/*
	2	* ov534/ov772x gspca driver
	3	* Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
	4	*
	5	* Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
	6	* USB protocol reverse engineered by Jim Paris <jim@jtan.com>
	7	* https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*/
	23
	24	#define MODULE_NAME "ov534"
	25
	26	#include "gspca.h"
	27
	28	#define OV534_REG_ADDRESS 0xf1 /* ? */
	29	#define OV534_REG_SUBADDR 0xf2
	30	#define OV534_REG_WRITE 0xf3
	31	#define OV534_REG_READ 0xf4
	32	#define OV534_REG_OPERATION 0xf5
	33	#define OV534_REG_STATUS 0xf6
	34
	35	#define OV534_OP_WRITE_3 0x37
	36	#define OV534_OP_WRITE_2 0x33
	37	#define OV534_OP_READ_2 0xf9
	38
	39	#define CTRL_TIMEOUT 500
	40
	41	MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
	42	MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
	43	MODULE_LICENSE("GPL");
	44
	45	/* global parameters */
	46	static int frame_rate;
	47
	48	/* specific webcam descriptor */
	49	struct sd {
	50	struct gspca_dev gspca_dev; /* !! must be the first item */
fbb4c6d2 AO	51	};
	52
	53	/* V4L2 controls supported by the driver */
	54	static struct ctrl sd_ctrls[] = {
	55	};
	56
	57	static struct v4l2_pix_format vga_mode[] = {
	58	{640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
	59	.bytesperline = 640 * 2,
	60	.sizeimage = 640 * 480 * 2,
	61	.colorspace = V4L2_COLORSPACE_JPEG,
	62	.priv = 0},
	63	};
	64
9e1e7b06	65	static void ov534_reg_write(struct usb_device *udev, u16 reg, u8 val)
fbb4c6d2	66	{
9e1e7b06	67	u8 data = val;
fbb4c6d2 AO	68	int ret;
fbb4c6d2 AO	69
9e1e7b06	70	PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
fbb4c6d2 AO	71	ret = usb_control_msg(udev,
	72	usb_sndctrlpipe(udev, 0),
	73	0x1,
	74	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	75	0x0, reg, &data, 1, CTRL_TIMEOUT);
	76	if (ret < 0)
	77	PDEBUG(D_ERR, "write failed");
	78	}
	79
9e1e7b06	80	static u8 ov534_reg_read(struct usb_device *udev, u16 reg)
fbb4c6d2	81	{
9e1e7b06	82	u8 data;
fbb4c6d2 AO	83	int ret;
	84
	85	ret = usb_control_msg(udev,
	86	usb_rcvctrlpipe(udev, 0),
	87	0x1,
	88	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	89	0x0, reg, &data, 1, CTRL_TIMEOUT);
9e1e7b06	90	PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, data);
fbb4c6d2 AO	91	if (ret < 0)
	92	PDEBUG(D_ERR, "read failed");
	93	return data;
	94	}
	95
fbb4c6d2 AO	96	/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
	97	* (direction and output)? */
	98	static void ov534_set_led(struct usb_device *udev, int status)
	99	{
9e1e7b06	100	u8 data;
fbb4c6d2 AO	101
	102	PDEBUG(D_CONF, "led status: %d", status);
	103
	104	data = ov534_reg_read(udev, 0x21);
	105	data \|= 0x80;
	106	ov534_reg_write(udev, 0x21, data);
	107
	108	data = ov534_reg_read(udev, 0x23);
	109	if (status)
	110	data \|= 0x80;
	111	else
	112	data &= ~(0x80);
	113
	114	ov534_reg_write(udev, 0x23, data);
	115	}
	116
	117	static int sccb_check_status(struct usb_device *udev)
	118	{
9e1e7b06	119	u8 data;
fbb4c6d2 AO	120	int i;
	121
	122	for (i = 0; i < 5; i++) {
	123	data = ov534_reg_read(udev, OV534_REG_STATUS);
	124
9e1e7b06	125	switch (data) {
fbb4c6d2 AO	126	case 0x00:
	127	return 1;
	128	case 0x04:
	129	return 0;
	130	case 0x03:
	131	break;
	132	default:
	133	PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5\n",
	134	data, i + 1);
	135	}
	136	}
	137	return 0;
	138	}
	139
9e1e7b06	140	static void sccb_reg_write(struct usb_device *udev, u16 reg, u8 val)
fbb4c6d2	141	{
9e1e7b06	142	PDEBUG(D_USBO, "reg: 0x%04x, val: 0x%02x", reg, val);
fbb4c6d2 AO	143	ov534_reg_write(udev, OV534_REG_SUBADDR, reg);
	144	ov534_reg_write(udev, OV534_REG_WRITE, val);
	145	ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
	146
	147	if (!sccb_check_status(udev))
	148	PDEBUG(D_ERR, "sccb_reg_write failed");
	149	}
	150
47dfd21f JP	151	static const __u8 ov534_reg_initdata[][2] = {
	152	{ 0xe7, 0x3a },
	153
	154	{ OV534_REG_ADDRESS, 0x42 }, /* select OV772x sensor */
	155
	156	{ 0xc2, 0x0c },
	157	{ 0x88, 0xf8 },
	158	{ 0xc3, 0x69 },
	159	{ 0x89, 0xff },
	160	{ 0x76, 0x03 },
	161	{ 0x92, 0x01 },
	162	{ 0x93, 0x18 },
	163	{ 0x94, 0x10 },
	164	{ 0x95, 0x10 },
	165	{ 0xe2, 0x00 },
	166	{ 0xe7, 0x3e },
	167
	168	{ 0x1c, 0x0a },
	169	{ 0x1d, 0x22 },
	170	{ 0x1d, 0x06 },
	171
	172	{ 0x96, 0x00 },
	173
	174	{ 0x97, 0x20 },
	175	{ 0x97, 0x20 },
	176	{ 0x97, 0x20 },
	177	{ 0x97, 0x0a },
	178	{ 0x97, 0x3f },
	179	{ 0x97, 0x4a },
	180	{ 0x97, 0x20 },
	181	{ 0x97, 0x15 },
	182	{ 0x97, 0x0b },
	183
	184	{ 0x8e, 0x40 },
	185	{ 0x1f, 0x81 },
	186	{ 0x34, 0x05 },
	187	{ 0xe3, 0x04 },
	188	{ 0x88, 0x00 },
	189	{ 0x89, 0x00 },
	190	{ 0x76, 0x00 },
	191	{ 0xe7, 0x2e },
	192	{ 0x31, 0xf9 },
	193	{ 0x25, 0x42 },
	194	{ 0x21, 0xf0 },
	195
	196	{ 0x1c, 0x00 },
	197	{ 0x1d, 0x40 },
	198	{ 0x1d, 0x02 },
	199	{ 0x1d, 0x00 },
	200	{ 0x1d, 0x02 },
	201	{ 0x1d, 0x57 },
	202	{ 0x1d, 0xff },
	203
	204	{ 0x8d, 0x1c },
	205	{ 0x8e, 0x80 },
	206	{ 0xe5, 0x04 },
	207
	208	{ 0xc0, 0x50 },
	209	{ 0xc1, 0x3c },
	210	{ 0xc2, 0x0c },
	211	};
fbb4c6d2	212
47dfd21f JP	213	static const __u8 ov772x_reg_initdata[][2] = {
	214	{ 0x12, 0x80 },
	215	{ 0x11, 0x01 },
	216
	217	{ 0x3d, 0x03 },
	218	{ 0x17, 0x26 },
	219	{ 0x18, 0xa0 },
	220	{ 0x19, 0x07 },
	221	{ 0x1a, 0xf0 },
	222	{ 0x32, 0x00 },
	223	{ 0x29, 0xa0 },
	224	{ 0x2c, 0xf0 },
	225	{ 0x65, 0x20 },
	226	{ 0x11, 0x01 },
	227	{ 0x42, 0x7f },
	228	{ 0x63, 0xe0 },
	229	{ 0x64, 0xff },
	230	{ 0x66, 0x00 },
	231	{ 0x13, 0xf0 },
	232	{ 0x0d, 0x41 },
	233	{ 0x0f, 0xc5 },
	234	{ 0x14, 0x11 },
	235
	236	{ 0x22, 0x7f },
	237	{ 0x23, 0x03 },
	238	{ 0x24, 0x40 },
	239	{ 0x25, 0x30 },
	240	{ 0x26, 0xa1 },
	241	{ 0x2a, 0x00 },
	242	{ 0x2b, 0x00 },
	243	{ 0x6b, 0xaa },
	244	{ 0x13, 0xff },
	245
	246	{ 0x90, 0x05 },
	247	{ 0x91, 0x01 },
	248	{ 0x92, 0x03 },
	249	{ 0x93, 0x00 },
	250	{ 0x94, 0x60 },
	251	{ 0x95, 0x3c },
	252	{ 0x96, 0x24 },
	253	{ 0x97, 0x1e },
	254	{ 0x98, 0x62 },
	255	{ 0x99, 0x80 },
	256	{ 0x9a, 0x1e },
	257	{ 0x9b, 0x08 },
	258	{ 0x9c, 0x20 },
	259	{ 0x9e, 0x81 },
	260
	261	{ 0xa6, 0x04 },
	262	{ 0x7e, 0x0c },
	263	{ 0x7f, 0x16 },
	264	{ 0x80, 0x2a },
	265	{ 0x81, 0x4e },
	266	{ 0x82, 0x61 },
	267	{ 0x83, 0x6f },
	268	{ 0x84, 0x7b },
	269	{ 0x85, 0x86 },
	270	{ 0x86, 0x8e },
	271	{ 0x87, 0x97 },
	272	{ 0x88, 0xa4 },
	273	{ 0x89, 0xaf },
	274	{ 0x8a, 0xc5 },
	275	{ 0x8b, 0xd7 },
	276	{ 0x8c, 0xe8 },
277	{ 0x8d, 0x20 },
278
279	{ 0x0c, 0x90 },
280
281	{ 0x2b, 0x00 },
282	{ 0x22, 0x7f },
283	{ 0x23, 0x03 },
284	{ 0x11, 0x01 },
285	{ 0x0c, 0xd0 },
286	{ 0x64, 0xff },
287	{ 0x0d, 0x41 },
288
289	{ 0x14, 0x41 },
290	{ 0x0e, 0xcd },
291	{ 0xac, 0xbf },
292	{ 0x8e, 0x00 },
293	{ 0x0c, 0xd0 }
294	};
fbb4c6d2	295
fbb4c6d2	296
47dfd21f JP	297	/* setup method */
	298	static void ov534_setup(struct usb_device *udev)
	299	{
	300	int i;
fbb4c6d2	301
47dfd21f JP	302	/* Initialize bridge chip */
	303	for (i = 0; i < ARRAY_SIZE(ov534_reg_initdata); i++)
	304	ov534_reg_write(udev, ov534_reg_initdata[i][0],
	305	ov534_reg_initdata[i][1]);
fbb4c6d2 AO	306
	307	ov534_set_led(udev, 1);
	308
47dfd21f JP	309	/* Initialize sensor */
	310	for (i = 0; i < ARRAY_SIZE(ov772x_reg_initdata); i++)
	311	sccb_reg_write(udev, ov772x_reg_initdata[i][0],
	312	ov772x_reg_initdata[i][1]);
fbb4c6d2 AO	313
	314	ov534_reg_write(udev, 0xe0, 0x09);
	315	ov534_set_led(udev, 0);
	316	}
	317
	318	/* this function is called at probe time */
	319	static int sd_config(struct gspca_dev *gspca_dev,
	320	const struct usb_device_id *id)
	321	{
	322	struct cam *cam;
	323
	324	cam = &gspca_dev->cam;
	325
	326	cam->epaddr = 0x01;
	327	cam->cam_mode = vga_mode;
	328	cam->nmodes = ARRAY_SIZE(vga_mode);
	329
442a43f5 AO	330	/*
	331	* On some architectures we need contiguous memory for urb buffers, and
	332	* in low memory situation 'sizeimage' can be too much.
	333	* 16kiB chunks should be available even when we are low in memory.
	334	* TODO: CHECK this description: is the problem arch-dependent or more
	335	* general?
	336	*/
	337	cam->bulk_size = 16 * 1024;
fbb4c6d2 AO	338	cam->bulk_nurbs = 2;
	339
	340	PDEBUG(D_PROBE, "bulk_size = %d", cam->bulk_size);
	341
	342	return 0;
	343	}
	344
	345	/* this function is called at probe and resume time */
	346	static int sd_init(struct gspca_dev *gspca_dev)
	347	{
3adba442	348	int fr;
fbb4c6d2	349
3adba442	350	ov534_setup(gspca_dev->dev);
fbb4c6d2	351
3adba442	352	fr = frame_rate;
fbb4c6d2	353
3adba442	354	switch (fr) {
fbb4c6d2 AO	355	case 50:
fbb4c6d2 AO	356	sccb_reg_write(gspca_dev->dev, 0x11, 0x01);
fbb4c6d2	357	sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
47dfd21f	358	ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
fbb4c6d2 AO	359	break;
	360	case 40:
	361	sccb_reg_write(gspca_dev->dev, 0x11, 0x02);
fbb4c6d2	362	sccb_reg_write(gspca_dev->dev, 0x0d, 0xc1);
47dfd21f	363	ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
fbb4c6d2	364	break;
3adba442	365	/* case 30: */
fbb4c6d2	366	default:
3adba442	367	fr = 30;
fbb4c6d2	368	sccb_reg_write(gspca_dev->dev, 0x11, 0x04);
fbb4c6d2	369	sccb_reg_write(gspca_dev->dev, 0x0d, 0x81);
47dfd21f	370	ov534_reg_write(gspca_dev->dev, 0xe5, 0x02);
fbb4c6d2 AO	371	break;
	372	case 15:
	373	sccb_reg_write(gspca_dev->dev, 0x11, 0x03);
fbb4c6d2	374	sccb_reg_write(gspca_dev->dev, 0x0d, 0x41);
47dfd21f	375	ov534_reg_write(gspca_dev->dev, 0xe5, 0x04);
fbb4c6d2	376	break;
3adba442 AO	377	}
	378
	379	PDEBUG(D_PROBE, "frame_rate: %d", fr);
fbb4c6d2 AO	380
	381	return 0;
	382	}
	383
	384	static int sd_start(struct gspca_dev *gspca_dev)
	385	{
442a43f5	386	struct gspca_frame *frame;
fbb4c6d2 AO	387
	388	/* start streaming data */
	389	ov534_set_led(gspca_dev->dev, 1);
	390	ov534_reg_write(gspca_dev->dev, 0xe0, 0x00);
	391
442a43f5 AO	392	frame = gspca_get_i_frame(gspca_dev);
	393	if (frame == NULL) {
	394	PDEBUG(D_ERR, "NULL frame!");
	395	return -1;
	396	}
	397	gspca_frame_add(gspca_dev, FIRST_PACKET, frame, gspca_dev->usb_buf, 0);
	398
fbb4c6d2 AO	399	return 0;
	400	}
	401
	402	static void sd_stopN(struct gspca_dev *gspca_dev)
	403	{
	404	/* stop streaming data */
	405	ov534_reg_write(gspca_dev->dev, 0xe0, 0x09);
	406	ov534_set_led(gspca_dev->dev, 0);
	407	}
	408
	409	static void sd_pkt_scan(struct gspca_dev gspca_dev, struct gspca_frame frame,
	410	__u8 *data, int len)
	411	{
	412	/*
	413	* The current camera setup doesn't stream the last pixel, so we set it
	414	* to a dummy value
	415	*/
442a43f5 AO	416	__u8 last[4] = { 0, 0, 0, 0 };
	417	int framesize = frame->v4l2_buf.length;
	418
	419	PDEBUG(D_PACK, "");
	420	PDEBUG(D_PACK, "** packet len = %d, framesize = %d", len, framesize);
	421	PDEBUG(D_PACK, "** frame->data_end - frame->data + len = %d",
	422	frame->data_end - frame->data + len);
	423
	424	if (frame->data_end - frame->data + len == framesize - 4) {
	425	PDEBUG(D_PACK, " end of frame!");
	426	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
	427	frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, last, 4);
	428	gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, 0);
fbb4c6d2	429	} else
442a43f5	430	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
fbb4c6d2 AO	431	}
	432
	433	/* sub-driver description */
	434	static const struct sd_desc sd_desc = {
	435	.name = MODULE_NAME,
	436	.ctrls = sd_ctrls,
	437	.nctrls = ARRAY_SIZE(sd_ctrls),
	438	.config = sd_config,
	439	.init = sd_init,
	440	.start = sd_start,
	441	.stopN = sd_stopN,
	442	.pkt_scan = sd_pkt_scan,
	443	};
	444
	445	/* -- module initialisation -- */
	446	static const __devinitdata struct usb_device_id device_table[] = {
	447	{USB_DEVICE(0x06f8, 0x3002)}, /* Hercules Blog Webcam */
	448	{USB_DEVICE(0x06f8, 0x3003)}, /* Hercules Dualpix HD Weblog */
	449	{USB_DEVICE(0x1415, 0x2000)}, /* Sony HD Eye for PS3 (SLEH 00201) */
	450	{}
	451	};
	452
	453	MODULE_DEVICE_TABLE(usb, device_table);
	454
	455	/* -- device connect -- */
	456	static int sd_probe(struct usb_interface intf, const struct usb_device_id id)
	457	{
	458	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
	459	THIS_MODULE);
	460	}
	461
	462	static struct usb_driver sd_driver = {
	463	.name = MODULE_NAME,
	464	.id_table = device_table,
	465	.probe = sd_probe,
	466	.disconnect = gspca_disconnect,
	467	#ifdef CONFIG_PM
	468	.suspend = gspca_suspend,
	469	.resume = gspca_resume,
	470	#endif
	471	};
	472
	473	/* -- module insert / remove -- */
	474	static int __init sd_mod_init(void)
	475	{
	476	if (usb_register(&sd_driver) < 0)
	477	return -1;
	478	PDEBUG(D_PROBE, "registered");
	479	return 0;
	480	}
	481
	482	static void __exit sd_mod_exit(void)
	483	{
	484	usb_deregister(&sd_driver);
	485	PDEBUG(D_PROBE, "deregistered");
	486	}
	487
	488	module_init(sd_mod_init);
	489	module_exit(sd_mod_exit);
	490
	491	module_param(frame_rate, int, 0644);
	492	MODULE_PARM_DESC(frame_rate, "Frame rate (15, 30, 40, 50)");