[deliverable/linux.git] / drivers / media / video / gspca / jeilinj.c

/*
 * Jeilinj subdriver
 *
 * Supports some Jeilin dual-mode cameras which use bulk transport and
 * download raw JPEG data.
 *
 * Copyright (C) 2009 Theodore Kilgore
 * Copyright (C) 2011 Patrice Chotard
 *
 * 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 "jeilinj"

#include <linux/slab.h>
#include "gspca.h"
#include "jpeg.h"

MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>");
MODULE_DESCRIPTION("GSPCA/JEILINJ USB Camera Driver");
MODULE_LICENSE("GPL");

/* Default timeouts, in ms */
#define JEILINJ_CMD_TIMEOUT 500
#define JEILINJ_CMD_DELAY 160
#define JEILINJ_DATA_TIMEOUT 1000

/* Maximum transfer size to use. */
#define JEILINJ_MAX_TRANSFER 0x200
#define FRAME_HEADER_LEN 0x10
#define FRAME_START 0xFFFFFFFF

enum {
	SAKAR_57379,
	SPORTSCAM_DV15,
};
/* Structure to hold all of our device specific stuff */
struct sd {
	struct gspca_dev gspca_dev;	/* !! must be the first item */
	int blocks_left;
	const struct v4l2_pix_format *cap_mode;
	/* Driver stuff */
	u8 type;
	u8 quality;				 /* image quality */
	u8 jpeg_hdr[JPEG_HDR_SZ];
};

struct jlj_command {
	unsigned char instruction[2];
	unsigned char ack_wanted;
	unsigned char delay;
};

/* AFAICT these cameras will only do 320x240. */
static struct v4l2_pix_format jlj_mode[] = {
	{ 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 320,
		.sizeimage = 320 * 240,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0},
	{ 640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
		.bytesperline = 640,
		.sizeimage = 640 * 480,
		.colorspace = V4L2_COLORSPACE_JPEG,
		.priv = 0}
};

/*
 * cam uses endpoint 0x03 to send commands, 0x84 for read commands,
 * and 0x82 for bulk transfer.
 */

/* All commands are two bytes only */
static void jlj_write2(struct gspca_dev *gspca_dev, unsigned char *command)
{
	int retval;

	if (gspca_dev->usb_err < 0)
		return;
	memcpy(gspca_dev->usb_buf, command, 2);
	retval = usb_bulk_msg(gspca_dev->dev,
			usb_sndbulkpipe(gspca_dev->dev, 3),
			gspca_dev->usb_buf, 2, NULL, 500);
	if (retval < 0) {
		err("command write [%02x] error %d",
				gspca_dev->usb_buf[0], retval);
		gspca_dev->usb_err = retval;
	}
}

/* Responses are one byte only */
static void jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
{
	int retval;

	if (gspca_dev->usb_err < 0)
		return;
	retval = usb_bulk_msg(gspca_dev->dev,
	usb_rcvbulkpipe(gspca_dev->dev, 0x84),
				gspca_dev->usb_buf, 1, NULL, 500);
	response = gspca_dev->usb_buf[0];
	if (retval < 0) {
		err("read command [%02x] error %d",
				gspca_dev->usb_buf[0], retval);
		gspca_dev->usb_err = retval;
	}
}

static int jlj_start(struct gspca_dev *gspca_dev)
{
	int i;
	int start_commands_size;
	u8 response = 0xff;
	struct sd *sd = (struct sd *) gspca_dev;
	struct jlj_command start_commands[] = {
		{{0x71, 0x81}, 0, 0},
		{{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
		{{0x95, 0x70}, 1, 0},
		{{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
		{{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
		{{0x95, 0x70}, 1, 0},
		{{0x71, 0x00}, 0, 0},   /* start streaming ??*/
		{{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
		{{0x95, 0x70}, 1, 0},
#define SPORTSCAM_DV15_CMD_SIZE 9
		{{0x94, 0x02}, 0, 0},
		{{0xde, 0x24}, 0, 0},
		{{0x94, 0x02}, 0, 0},
		{{0xdd, 0xf0}, 0, 0},
		{{0x94, 0x02}, 0, 0},
		{{0xe3, 0x2c}, 0, 0},
		{{0x94, 0x02}, 0, 0},
		{{0xe4, 0x00}, 0, 0},
		{{0x94, 0x02}, 0, 0},
		{{0xe5, 0x00}, 0, 0},
		{{0x94, 0x02}, 0, 0},
		{{0xe6, 0x2c}, 0, 0},
		{{0x94, 0x03}, 0, 0},
		{{0xaa, 0x00}, 0, 0},
		{{0x71, 0x1e}, 0, 0},
		{{0x70, 0x06}, 0, 0},
		{{0x71, 0x80}, 0, 0},
		{{0x70, 0x07}, 0, 0}
	};

	sd->blocks_left = 0;
	/* Under Windows, USB spy shows that only the 9 first start
	 * commands are used for SPORTSCAM_DV15 webcam
	 */
	if (sd->type == SPORTSCAM_DV15)
		start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
	else
		start_commands_size = ARRAY_SIZE(start_commands);

	for (i = 0; i < start_commands_size; i++) {
		jlj_write2(gspca_dev, start_commands[i].instruction);
		if (start_commands[i].delay)
			msleep(start_commands[i].delay);
		if (start_commands[i].ack_wanted)
			jlj_read1(gspca_dev, response);
	}
	if (gspca_dev->usb_err < 0)
		PDEBUG(D_ERR, "Start streaming command failed");
	return gspca_dev->usb_err;
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			u8 *data, int len)
{
	struct sd *sd = (struct sd *) gspca_dev;
	int packet_type;
	u32 header_marker;

	PDEBUG(D_STREAM, "Got %d bytes out of %d for Block 0",
			len, JEILINJ_MAX_TRANSFER);
	if (len != JEILINJ_MAX_TRANSFER) {
		PDEBUG(D_PACK, "bad length");
		goto discard;
	}
	/* check if it's start of frame */
	header_marker = ((u32 *)data)[0];
	if (header_marker == FRAME_START) {
		sd->blocks_left = data[0x0a] - 1;
		PDEBUG(D_STREAM, "blocks_left = 0x%x", sd->blocks_left);
		/* Start a new frame, and add the JPEG header, first thing */
		gspca_frame_add(gspca_dev, FIRST_PACKET,
				sd->jpeg_hdr, JPEG_HDR_SZ);
		/* Toss line 0 of data block 0, keep the rest. */
		gspca_frame_add(gspca_dev, INTER_PACKET,
				data + FRAME_HEADER_LEN,
				JEILINJ_MAX_TRANSFER - FRAME_HEADER_LEN);
	} else if (sd->blocks_left > 0) {
		PDEBUG(D_STREAM, "%d blocks remaining for frame",
				sd->blocks_left);
		sd->blocks_left -= 1;
		if (sd->blocks_left == 0)
			packet_type = LAST_PACKET;
		else
			packet_type = INTER_PACKET;
		gspca_frame_add(gspca_dev, packet_type,
				data, JEILINJ_MAX_TRANSFER);
	} else
		goto discard;
	return;
discard:
	/* Discard data until a new frame starts. */
	gspca_dev->last_packet_type = DISCARD_PACKET;
}

/* This function is called at probe time just before sd_init */
static int sd_config(struct gspca_dev *gspca_dev,
		const struct usb_device_id *id)
{
	struct cam *cam = &gspca_dev->cam;
	struct sd *dev  = (struct sd *) gspca_dev;

	dev->type = id->driver_info;
	dev->quality  = 85;
	PDEBUG(D_PROBE,
		"JEILINJ camera detected"
		" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
	cam->cam_mode = jlj_mode;
	cam->nmodes = ARRAY_SIZE(jlj_mode);
	cam->bulk = 1;
	cam->bulk_nurbs = 1;
	cam->bulk_size = JEILINJ_MAX_TRANSFER;
	return 0;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
	int i;
	u8 *buf;
	u8 stop_commands[][2] = {
		{0x71, 0x00},
		{0x70, 0x09},
		{0x71, 0x80},
		{0x70, 0x05}
	};

	for (;;) {
		/* get the image remaining blocks */
		usb_bulk_msg(gspca_dev->dev,
				gspca_dev->urb[0]->pipe,
				gspca_dev->urb[0]->transfer_buffer,
				JEILINJ_MAX_TRANSFER, NULL,
				JEILINJ_DATA_TIMEOUT);

		/* search for 0xff 0xd9  (EOF for JPEG) */
		i = 0;
		buf = gspca_dev->urb[0]->transfer_buffer;
		while ((i < (JEILINJ_MAX_TRANSFER - 1)) &&
			((buf[i] != 0xff) || (buf[i+1] != 0xd9)))
			i++;

		if (i != (JEILINJ_MAX_TRANSFER - 1))
			/* last remaining block found */
			break;
		}

	for (i = 0; i < ARRAY_SIZE(stop_commands); i++)
		jlj_write2(gspca_dev, stop_commands[i]);
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
	return gspca_dev->usb_err;
}

/* Set up for getting frames. */
static int sd_start(struct gspca_dev *gspca_dev)
{
	struct sd *dev = (struct sd *) gspca_dev;

	/* create the JPEG header */
	jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
			0x21);          /* JPEG 422 */
	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
	PDEBUG(D_STREAM, "Start streaming at %dx%d",
		gspca_dev->height, gspca_dev->width);
	jlj_start(gspca_dev);
	return gspca_dev->usb_err;
}

/* Table of supported USB devices */
static const struct usb_device_id device_table[] = {
	{USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
	{USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
	{}
};

MODULE_DEVICE_TABLE(usb, device_table);

/* sub-driver description */
static const struct sd_desc sd_desc_sakar_57379 = {
	.name   = MODULE_NAME,
	.config = sd_config,
	.init   = sd_init,
	.start  = sd_start,
	.stopN  = sd_stopN,
	.pkt_scan = sd_pkt_scan,
};

/* sub-driver description */
static const struct sd_desc sd_desc_sportscam_dv15 = {
	.name   = MODULE_NAME,
	.config = sd_config,
	.init   = sd_init,
	.start  = sd_start,
	.stopN  = sd_stopN,
	.pkt_scan = sd_pkt_scan,
};

static const struct sd_desc *sd_desc[2] = {
	&sd_desc_sakar_57379,
	&sd_desc_sportscam_dv15
};

/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	return gspca_dev_probe(intf, id,
			sd_desc[id->driver_info],
			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)
{
	return usb_register(&sd_driver);
}

static void __exit sd_mod_exit(void)
{
	usb_deregister(&sd_driver);
}

module_init(sd_mod_init);
module_exit(sd_mod_exit);
Commit	Line	Data
3040b043 TK	1	/*
	2	* Jeilinj subdriver
	3	*
	4	* Supports some Jeilin dual-mode cameras which use bulk transport and
	5	* download raw JPEG data.
	6	*
	7	* Copyright (C) 2009 Theodore Kilgore
c3d86927	8	* Copyright (C) 2011 Patrice Chotard
3040b043 TK	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*/
	24
	25	#define MODULE_NAME "jeilinj"
	26
5a0e3ad6	27	#include <linux/slab.h>
3040b043 TK	28	#include "gspca.h"
	29	#include "jpeg.h"
	30
	31	MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>");
	32	MODULE_DESCRIPTION("GSPCA/JEILINJ USB Camera Driver");
	33	MODULE_LICENSE("GPL");
	34
	35	/* Default timeouts, in ms */
	36	#define JEILINJ_CMD_TIMEOUT 500
713b466f	37	#define JEILINJ_CMD_DELAY 160
3040b043 TK	38	#define JEILINJ_DATA_TIMEOUT 1000
	39
	40	/* Maximum transfer size to use. */
	41	#define JEILINJ_MAX_TRANSFER 0x200
3040b043	42	#define FRAME_HEADER_LEN 0x10
c3d86927	43	#define FRAME_START 0xFFFFFFFF
3040b043	44
713b466f PC	45	enum {
	46	SAKAR_57379,
	47	SPORTSCAM_DV15,
	48	};
3040b043 TK	49	/* Structure to hold all of our device specific stuff */
	50	struct sd {
	51	struct gspca_dev gspca_dev; /* !! must be the first item */
c3d86927	52	int blocks_left;
3040b043 TK	53	const struct v4l2_pix_format *cap_mode;
3040b043 TK	54	/* Driver stuff */
713b466f	55	u8 type;
3040b043	56	u8 quality; /* image quality */
9a731a32	57	u8 jpeg_hdr[JPEG_HDR_SZ];
3040b043 TK	58	};
3040b043 TK	59
c3d86927 PC	60	struct jlj_command {
	61	unsigned char instruction[2];
	62	unsigned char ack_wanted;
713b466f	63	unsigned char delay;
c3d86927	64	};
3040b043 TK	65
	66	/* AFAICT these cameras will only do 320x240. */
	67	static struct v4l2_pix_format jlj_mode[] = {
	68	{ 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	69	.bytesperline = 320,
	70	.sizeimage = 320 * 240,
	71	.colorspace = V4L2_COLORSPACE_JPEG,
6f8efcfb PC	72	.priv = 0},
	73	{ 640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	74	.bytesperline = 640,
	75	.sizeimage = 640 * 480,
	76	.colorspace = V4L2_COLORSPACE_JPEG,
3040b043 TK	77	.priv = 0}
	78	};
	79
	80	/*
	81	* cam uses endpoint 0x03 to send commands, 0x84 for read commands,
	82	* and 0x82 for bulk transfer.
	83	*/
	84
	85	/* All commands are two bytes only */
8715b16e	86	static void jlj_write2(struct gspca_dev gspca_dev, unsigned char command)
3040b043 TK	87	{
	88	int retval;
	89
8715b16e PC	90	if (gspca_dev->usb_err < 0)
8715b16e PC	91	return;
3040b043 TK	92	memcpy(gspca_dev->usb_buf, command, 2);
	93	retval = usb_bulk_msg(gspca_dev->dev,
	94	usb_sndbulkpipe(gspca_dev->dev, 3),
	95	gspca_dev->usb_buf, 2, NULL, 500);
8715b16e	96	if (retval < 0) {
0b656321	97	err("command write [%02x] error %d",
3040b043	98	gspca_dev->usb_buf[0], retval);
8715b16e PC	99	gspca_dev->usb_err = retval;
8715b16e PC	100	}
3040b043 TK	101	}
	102
	103	/* Responses are one byte only */
8715b16e	104	static void jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
3040b043 TK	105	{
	106	int retval;
	107
8715b16e PC	108	if (gspca_dev->usb_err < 0)
8715b16e PC	109	return;
3040b043 TK	110	retval = usb_bulk_msg(gspca_dev->dev,
	111	usb_rcvbulkpipe(gspca_dev->dev, 0x84),
	112	gspca_dev->usb_buf, 1, NULL, 500);
	113	response = gspca_dev->usb_buf[0];
8715b16e	114	if (retval < 0) {
0b656321	115	err("read command [%02x] error %d",
3040b043	116	gspca_dev->usb_buf[0], retval);
8715b16e PC	117	gspca_dev->usb_err = retval;
8715b16e PC	118	}
3040b043 TK	119	}
	120
	121	static int jlj_start(struct gspca_dev *gspca_dev)
	122	{
	123	int i;
713b466f	124	int start_commands_size;
3040b043	125	u8 response = 0xff;
c3d86927	126	struct sd sd = (struct sd ) gspca_dev;
3040b043	127	struct jlj_command start_commands[] = {
713b466f PC	128	{{0x71, 0x81}, 0, 0},
	129	{{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
	130	{{0x95, 0x70}, 1, 0},
	131	{{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
	132	{{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
	133	{{0x95, 0x70}, 1, 0},
	134	{{0x71, 0x00}, 0, 0}, /* start streaming ??*/
	135	{{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
	136	{{0x95, 0x70}, 1, 0},
	137	#define SPORTSCAM_DV15_CMD_SIZE 9
	138	{{0x94, 0x02}, 0, 0},
	139	{{0xde, 0x24}, 0, 0},
	140	{{0x94, 0x02}, 0, 0},
	141	{{0xdd, 0xf0}, 0, 0},
	142	{{0x94, 0x02}, 0, 0},
	143	{{0xe3, 0x2c}, 0, 0},
	144	{{0x94, 0x02}, 0, 0},
	145	{{0xe4, 0x00}, 0, 0},
	146	{{0x94, 0x02}, 0, 0},
	147	{{0xe5, 0x00}, 0, 0},
	148	{{0x94, 0x02}, 0, 0},
	149	{{0xe6, 0x2c}, 0, 0},
	150	{{0x94, 0x03}, 0, 0},
	151	{{0xaa, 0x00}, 0, 0},
	152	{{0x71, 0x1e}, 0, 0},
	153	{{0x70, 0x06}, 0, 0},
	154	{{0x71, 0x80}, 0, 0},
	155	{{0x70, 0x07}, 0, 0}
3040b043	156	};
c3d86927 PC	157
c3d86927 PC	158	sd->blocks_left = 0;
713b466f PC	159	/* Under Windows, USB spy shows that only the 9 first start
	160	* commands are used for SPORTSCAM_DV15 webcam
	161	*/
	162	if (sd->type == SPORTSCAM_DV15)
	163	start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
	164	else
	165	start_commands_size = ARRAY_SIZE(start_commands);
	166
	167	for (i = 0; i < start_commands_size; i++) {
8715b16e	168	jlj_write2(gspca_dev, start_commands[i].instruction);
713b466f PC	169	if (start_commands[i].delay)
713b466f PC	170	msleep(start_commands[i].delay);
3040b043	171	if (start_commands[i].ack_wanted)
8715b16e	172	jlj_read1(gspca_dev, response);
3040b043	173	}
8715b16e PC	174	if (gspca_dev->usb_err < 0)
	175	PDEBUG(D_ERR, "Start streaming command failed");
	176	return gspca_dev->usb_err;
3040b043 TK	177	}
3040b043 TK	178
c3d86927 PC	179	static void sd_pkt_scan(struct gspca_dev *gspca_dev,
c3d86927 PC	180	u8 *data, int len)
3040b043	181	{
c3d86927	182	struct sd sd = (struct sd ) gspca_dev;
3040b043	183	int packet_type;
c3d86927	184	u32 header_marker;
3040b043	185
c3d86927 PC	186	PDEBUG(D_STREAM, "Got %d bytes out of %d for Block 0",
	187	len, JEILINJ_MAX_TRANSFER);
	188	if (len != JEILINJ_MAX_TRANSFER) {
	189	PDEBUG(D_PACK, "bad length");
	190	goto discard;
3040b043	191	}
c3d86927 PC	192	/* check if it's start of frame */
	193	header_marker = ((u32 *)data)[0];
	194	if (header_marker == FRAME_START) {
	195	sd->blocks_left = data[0x0a] - 1;
	196	PDEBUG(D_STREAM, "blocks_left = 0x%x", sd->blocks_left);
6ca3f255	197	/* Start a new frame, and add the JPEG header, first thing */
76dd272b	198	gspca_frame_add(gspca_dev, FIRST_PACKET,
c3d86927	199	sd->jpeg_hdr, JPEG_HDR_SZ);
76dd272b JFM	200	/* Toss line 0 of data block 0, keep the rest. */
76dd272b JFM	201	gspca_frame_add(gspca_dev, INTER_PACKET,
c3d86927	202	data + FRAME_HEADER_LEN,
3040b043	203	JEILINJ_MAX_TRANSFER - FRAME_HEADER_LEN);
c3d86927 PC	204	} else if (sd->blocks_left > 0) {
	205	PDEBUG(D_STREAM, "%d blocks remaining for frame",
	206	sd->blocks_left);
	207	sd->blocks_left -= 1;
	208	if (sd->blocks_left == 0)
	209	packet_type = LAST_PACKET;
	210	else
	211	packet_type = INTER_PACKET;
	212	gspca_frame_add(gspca_dev, packet_type,
	213	data, JEILINJ_MAX_TRANSFER);
	214	} else
	215	goto discard;
	216	return;
	217	discard:
	218	/* Discard data until a new frame starts. */
	219	gspca_dev->last_packet_type = DISCARD_PACKET;
3040b043 TK	220	}
	221
	222	/* This function is called at probe time just before sd_init */
	223	static int sd_config(struct gspca_dev *gspca_dev,
	224	const struct usb_device_id *id)
	225	{
	226	struct cam *cam = &gspca_dev->cam;
	227	struct sd dev = (struct sd ) gspca_dev;
	228
713b466f	229	dev->type = id->driver_info;
3040b043	230	dev->quality = 85;
3040b043 TK	231	PDEBUG(D_PROBE,
	232	"JEILINJ camera detected"
	233	" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
	234	cam->cam_mode = jlj_mode;
6f8efcfb	235	cam->nmodes = ARRAY_SIZE(jlj_mode);
3040b043	236	cam->bulk = 1;
c3d86927 PC	237	cam->bulk_nurbs = 1;
c3d86927 PC	238	cam->bulk_size = JEILINJ_MAX_TRANSFER;
3040b043 TK	239	return 0;
	240	}
	241
c3d86927	242	static void sd_stopN(struct gspca_dev *gspca_dev)
3040b043	243	{
c3d86927 PC	244	int i;
	245	u8 *buf;
	246	u8 stop_commands[][2] = {
	247	{0x71, 0x00},
	248	{0x70, 0x09},
	249	{0x71, 0x80},
	250	{0x70, 0x05}
	251	};
	252
	253	for (;;) {
	254	/* get the image remaining blocks */
	255	usb_bulk_msg(gspca_dev->dev,
	256	gspca_dev->urb[0]->pipe,
	257	gspca_dev->urb[0]->transfer_buffer,
	258	JEILINJ_MAX_TRANSFER, NULL,
	259	JEILINJ_DATA_TIMEOUT);
3040b043	260
c3d86927 PC	261	/* search for 0xff 0xd9 (EOF for JPEG) */
	262	i = 0;
	263	buf = gspca_dev->urb[0]->transfer_buffer;
	264	while ((i < (JEILINJ_MAX_TRANSFER - 1)) &&
	265	((buf[i] != 0xff) \|\| (buf[i+1] != 0xd9)))
	266	i++;
	267
	268	if (i != (JEILINJ_MAX_TRANSFER - 1))
	269	/* last remaining block found */
	270	break;
	271	}
	272
	273	for (i = 0; i < ARRAY_SIZE(stop_commands); i++)
	274	jlj_write2(gspca_dev, stop_commands[i]);
3040b043 TK	275	}
	276
	277	/* this function is called at probe and resume time */
	278	static int sd_init(struct gspca_dev *gspca_dev)
	279	{
8715b16e	280	return gspca_dev->usb_err;
3040b043 TK	281	}
	282
	283	/* Set up for getting frames. */
	284	static int sd_start(struct gspca_dev *gspca_dev)
	285	{
	286	struct sd dev = (struct sd ) gspca_dev;
3040b043 TK	287
3040b043 TK	288	/* create the JPEG header */
3040b043 TK	289	jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
	290	0x21); /* JPEG 422 */
	291	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
6f8efcfb PC	292	PDEBUG(D_STREAM, "Start streaming at %dx%d",
6f8efcfb PC	293	gspca_dev->height, gspca_dev->width);
8715b16e PC	294	jlj_start(gspca_dev);
8715b16e PC	295	return gspca_dev->usb_err;
3040b043 TK	296	}
	297
	298	/* Table of supported USB devices */
95c967c1	299	static const struct usb_device_id device_table[] = {
713b466f PC	300	{USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
713b466f PC	301	{USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
3040b043 TK	302	{}
	303	};
	304
	305	MODULE_DEVICE_TABLE(usb, device_table);
	306
	307	/* sub-driver description */
713b466f PC	308	static const struct sd_desc sd_desc_sakar_57379 = {
	309	.name = MODULE_NAME,
	310	.config = sd_config,
	311	.init = sd_init,
	312	.start = sd_start,
	313	.stopN = sd_stopN,
	314	.pkt_scan = sd_pkt_scan,
	315	};
	316
	317	/* sub-driver description */
	318	static const struct sd_desc sd_desc_sportscam_dv15 = {
3040b043 TK	319	.name = MODULE_NAME,
	320	.config = sd_config,
	321	.init = sd_init,
	322	.start = sd_start,
c3d86927 PC	323	.stopN = sd_stopN,
c3d86927 PC	324	.pkt_scan = sd_pkt_scan,
3040b043 TK	325	};
3040b043 TK	326
713b466f PC	327	static const struct sd_desc *sd_desc[2] = {
	328	&sd_desc_sakar_57379,
	329	&sd_desc_sportscam_dv15
	330	};
	331
3040b043 TK	332	/* -- device connect -- */
	333	static int sd_probe(struct usb_interface *intf,
	334	const struct usb_device_id *id)
	335	{
	336	return gspca_dev_probe(intf, id,
713b466f	337	sd_desc[id->driver_info],
3040b043 TK	338	sizeof(struct sd),
	339	THIS_MODULE);
	340	}
	341
	342	static struct usb_driver sd_driver = {
	343	.name = MODULE_NAME,
	344	.id_table = device_table,
	345	.probe = sd_probe,
	346	.disconnect = gspca_disconnect,
	347	#ifdef CONFIG_PM
	348	.suspend = gspca_suspend,
	349	.resume = gspca_resume,
	350	#endif
	351	};
	352
	353	/* -- module insert / remove -- */
	354	static int __init sd_mod_init(void)
	355	{
54826437	356	return usb_register(&sd_driver);
3040b043 TK	357	}
	358
	359	static void __exit sd_mod_exit(void)
	360	{
	361	usb_deregister(&sd_driver);
3040b043 TK	362	}
	363
	364	module_init(sd_mod_init);
	365	module_exit(sd_mod_exit);