[deliverable/linux.git] / drivers / media / usb / 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
 *
 * Sportscam DV15 support and control settings are
 * 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#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,
};

#define CAMQUALITY_MIN 0	/* highest cam quality */
#define CAMQUALITY_MAX 97	/* lowest cam quality  */

/* 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;
	struct v4l2_ctrl *freq;
	struct v4l2_ctrl *jpegqual;
	/* Driver stuff */
	u8 type;
	u8 quality;				 /* image quality */
#define QUALITY_MIN 35
#define QUALITY_MAX 85
#define QUALITY_DEF 85
	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) {
		pr_err("command write [%02x] error %d\n",
		       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) {
		pr_err("read command [%02x] error %d\n",
		       gspca_dev->usb_buf[0], retval);
		gspca_dev->usb_err = retval;
	}
}

static void setfreq(struct gspca_dev *gspca_dev, s32 val)
{
	u8 freq_commands[][2] = {
		{0x71, 0x80},
		{0x70, 0x07}
	};

	freq_commands[0][1] |= val >> 1;

	jlj_write2(gspca_dev, freq_commands[0]);
	jlj_write2(gspca_dev, freq_commands[1]);
}

static void setcamquality(struct gspca_dev *gspca_dev, s32 val)
{
	u8 quality_commands[][2] = {
		{0x71, 0x1E},
		{0x70, 0x06}
	};
	u8 camquality;

	/* adapt camera quality from jpeg quality */
	camquality = ((QUALITY_MAX - val) * CAMQUALITY_MAX)
		/ (QUALITY_MAX - QUALITY_MIN);
	quality_commands[0][1] += camquality;

	jlj_write2(gspca_dev, quality_commands[0]);
	jlj_write2(gspca_dev, quality_commands[1]);
}

static void setautogain(struct gspca_dev *gspca_dev, s32 val)
{
	u8 autogain_commands[][2] = {
		{0x94, 0x02},
		{0xcf, 0x00}
	};

	autogain_commands[1][1] = val << 4;

	jlj_write2(gspca_dev, autogain_commands[0]);
	jlj_write2(gspca_dev, autogain_commands[1]);
}

static void setred(struct gspca_dev *gspca_dev, s32 val)
{
	u8 setred_commands[][2] = {
		{0x94, 0x02},
		{0xe6, 0x00}
	};

	setred_commands[1][1] = val;

	jlj_write2(gspca_dev, setred_commands[0]);
	jlj_write2(gspca_dev, setred_commands[1]);
}

static void setgreen(struct gspca_dev *gspca_dev, s32 val)
{
	u8 setgreen_commands[][2] = {
		{0x94, 0x02},
		{0xe7, 0x00}
	};

	setgreen_commands[1][1] = val;

	jlj_write2(gspca_dev, setgreen_commands[0]);
	jlj_write2(gspca_dev, setgreen_commands[1]);
}

static void setblue(struct gspca_dev *gspca_dev, s32 val)
{
	u8 setblue_commands[][2] = {
		{0x94, 0x02},
		{0xe9, 0x00}
	};

	setblue_commands[1][1] = val;

	jlj_write2(gspca_dev, setblue_commands[0]);
	jlj_write2(gspca_dev, setblue_commands[1]);
}

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}
	};

	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);
	}
	setcamquality(gspca_dev, v4l2_ctrl_g_ctrl(sd->jpegqual));
	msleep(2);
	setfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->freq));
	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 = QUALITY_DEF;

	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;
	static 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);

static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct gspca_dev *gspca_dev =
		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
	struct sd *sd = (struct sd *)gspca_dev;

	gspca_dev->usb_err = 0;

	if (!gspca_dev->streaming)
		return 0;

	switch (ctrl->id) {
	case V4L2_CID_POWER_LINE_FREQUENCY:
		setfreq(gspca_dev, ctrl->val);
		break;
	case V4L2_CID_RED_BALANCE:
		setred(gspca_dev, ctrl->val);
		break;
	case V4L2_CID_GAIN:
		setgreen(gspca_dev, ctrl->val);
		break;
	case V4L2_CID_BLUE_BALANCE:
		setblue(gspca_dev, ctrl->val);
		break;
	case V4L2_CID_AUTOGAIN:
		setautogain(gspca_dev, ctrl->val);
		break;
	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
		jpeg_set_qual(sd->jpeg_hdr, ctrl->val);
		setcamquality(gspca_dev, ctrl->val);
		break;
	}
	return gspca_dev->usb_err;
}

static const struct v4l2_ctrl_ops sd_ctrl_ops = {
	.s_ctrl = sd_s_ctrl,
};

static int sd_init_controls(struct gspca_dev *gspca_dev)
{
	struct sd *sd = (struct sd *)gspca_dev;
	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
	static const struct v4l2_ctrl_config custom_autogain = {
		.ops = &sd_ctrl_ops,
		.id = V4L2_CID_AUTOGAIN,
		.type = V4L2_CTRL_TYPE_INTEGER,
		.name = "Automatic Gain (and Exposure)",
		.max = 3,
		.step = 1,
		.def = 0,
	};

	gspca_dev->vdev.ctrl_handler = hdl;
	v4l2_ctrl_handler_init(hdl, 6);
	sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
			V4L2_CID_POWER_LINE_FREQUENCY,
			V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1,
			V4L2_CID_POWER_LINE_FREQUENCY_60HZ);
	v4l2_ctrl_new_custom(hdl, &custom_autogain, NULL);
	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_RED_BALANCE, 0, 3, 1, 2);
	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_GAIN, 0, 3, 1, 2);
	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_BLUE_BALANCE, 0, 3, 1, 2);
	sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
			V4L2_CID_JPEG_COMPRESSION_QUALITY,
			QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);

	if (hdl->error) {
		pr_err("Could not initialize controls\n");
		return hdl->error;
	}
	return 0;
}

static int sd_set_jcomp(struct gspca_dev *gspca_dev,
			const struct v4l2_jpegcompression *jcomp)
{
	struct sd *sd = (struct sd *) gspca_dev;

	v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);
	return 0;
}

static int sd_get_jcomp(struct gspca_dev *gspca_dev,
			struct v4l2_jpegcompression *jcomp)
{
	struct sd *sd = (struct sd *) gspca_dev;

	memset(jcomp, 0, sizeof *jcomp);
	jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);
	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
			| V4L2_JPEG_MARKER_DQT;
	return 0;
}


/* 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,
	.init_controls = sd_init_controls,
	.start  = sd_start,
	.stopN  = sd_stopN,
	.pkt_scan = sd_pkt_scan,
	.get_jcomp = sd_get_jcomp,
	.set_jcomp = sd_set_jcomp,
};

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,
	.reset_resume = gspca_resume,
#endif
};

module_usb_driver(sd_driver);
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
5396e62f PC	8	*
5396e62f PC	9	* Sportscam DV15 support and control settings are
c3d86927	10	* Copyright (C) 2011 Patrice Chotard
3040b043 TK	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*/
	26
133a9fe9 JP	27	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
133a9fe9 JP	28
3040b043 TK	29	#define MODULE_NAME "jeilinj"
3040b043 TK	30
5a0e3ad6	31	#include <linux/slab.h>
3040b043 TK	32	#include "gspca.h"
	33	#include "jpeg.h"
	34
	35	MODULE_AUTHOR("Theodore Kilgore <kilgota@auburn.edu>");
	36	MODULE_DESCRIPTION("GSPCA/JEILINJ USB Camera Driver");
	37	MODULE_LICENSE("GPL");
	38
	39	/* Default timeouts, in ms */
	40	#define JEILINJ_CMD_TIMEOUT 500
713b466f	41	#define JEILINJ_CMD_DELAY 160
3040b043 TK	42	#define JEILINJ_DATA_TIMEOUT 1000
	43
	44	/* Maximum transfer size to use. */
	45	#define JEILINJ_MAX_TRANSFER 0x200
3040b043	46	#define FRAME_HEADER_LEN 0x10
c3d86927	47	#define FRAME_START 0xFFFFFFFF
3040b043	48
713b466f PC	49	enum {
	50	SAKAR_57379,
	51	SPORTSCAM_DV15,
	52	};
5396e62f PC	53
	54	#define CAMQUALITY_MIN 0 /* highest cam quality */
	55	#define CAMQUALITY_MAX 97 /* lowest cam quality */
	56
3040b043 TK	57	/* Structure to hold all of our device specific stuff */
	58	struct sd {
	59	struct gspca_dev gspca_dev; /* !! must be the first item */
c3d86927	60	int blocks_left;
3040b043	61	const struct v4l2_pix_format *cap_mode;
bfaab899 HV	62	struct v4l2_ctrl *freq;
bfaab899 HV	63	struct v4l2_ctrl *jpegqual;
3040b043	64	/* Driver stuff */
713b466f	65	u8 type;
3040b043	66	u8 quality; /* image quality */
5396e62f PC	67	#define QUALITY_MIN 35
	68	#define QUALITY_MAX 85
	69	#define QUALITY_DEF 85
9a731a32	70	u8 jpeg_hdr[JPEG_HDR_SZ];
3040b043 TK	71	};
3040b043 TK	72
c3d86927 PC	73	struct jlj_command {
	74	unsigned char instruction[2];
	75	unsigned char ack_wanted;
713b466f	76	unsigned char delay;
c3d86927	77	};
3040b043 TK	78
	79	/* AFAICT these cameras will only do 320x240. */
	80	static struct v4l2_pix_format jlj_mode[] = {
	81	{ 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	82	.bytesperline = 320,
	83	.sizeimage = 320 * 240,
	84	.colorspace = V4L2_COLORSPACE_JPEG,
6f8efcfb PC	85	.priv = 0},
	86	{ 640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	87	.bytesperline = 640,
	88	.sizeimage = 640 * 480,
	89	.colorspace = V4L2_COLORSPACE_JPEG,
3040b043 TK	90	.priv = 0}
	91	};
	92
	93	/*
	94	* cam uses endpoint 0x03 to send commands, 0x84 for read commands,
	95	* and 0x82 for bulk transfer.
	96	*/
	97
	98	/* All commands are two bytes only */
8715b16e	99	static void jlj_write2(struct gspca_dev gspca_dev, unsigned char command)
3040b043 TK	100	{
	101	int retval;
	102
8715b16e PC	103	if (gspca_dev->usb_err < 0)
8715b16e PC	104	return;
3040b043 TK	105	memcpy(gspca_dev->usb_buf, command, 2);
	106	retval = usb_bulk_msg(gspca_dev->dev,
	107	usb_sndbulkpipe(gspca_dev->dev, 3),
	108	gspca_dev->usb_buf, 2, NULL, 500);
8715b16e	109	if (retval < 0) {
133a9fe9 JP	110	pr_err("command write [%02x] error %d\n",
133a9fe9 JP	111	gspca_dev->usb_buf[0], retval);
8715b16e PC	112	gspca_dev->usb_err = retval;
8715b16e PC	113	}
3040b043 TK	114	}
	115
	116	/* Responses are one byte only */
8715b16e	117	static void jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
3040b043 TK	118	{
	119	int retval;
	120
8715b16e PC	121	if (gspca_dev->usb_err < 0)
8715b16e PC	122	return;
3040b043 TK	123	retval = usb_bulk_msg(gspca_dev->dev,
	124	usb_rcvbulkpipe(gspca_dev->dev, 0x84),
	125	gspca_dev->usb_buf, 1, NULL, 500);
	126	response = gspca_dev->usb_buf[0];
8715b16e	127	if (retval < 0) {
133a9fe9 JP	128	pr_err("read command [%02x] error %d\n",
133a9fe9 JP	129	gspca_dev->usb_buf[0], retval);
8715b16e PC	130	gspca_dev->usb_err = retval;
8715b16e PC	131	}
3040b043 TK	132	}
3040b043 TK	133
bfaab899	134	static void setfreq(struct gspca_dev *gspca_dev, s32 val)
5396e62f	135	{
5396e62f PC	136	u8 freq_commands[][2] = {
	137	{0x71, 0x80},
	138	{0x70, 0x07}
	139	};
	140
bfaab899	141	freq_commands[0][1] \|= val >> 1;
5396e62f PC	142
	143	jlj_write2(gspca_dev, freq_commands[0]);
	144	jlj_write2(gspca_dev, freq_commands[1]);
	145	}
	146
bfaab899	147	static void setcamquality(struct gspca_dev *gspca_dev, s32 val)
5396e62f	148	{
5396e62f PC	149	u8 quality_commands[][2] = {
	150	{0x71, 0x1E},
	151	{0x70, 0x06}
	152	};
	153	u8 camquality;
	154
	155	/* adapt camera quality from jpeg quality */
bfaab899	156	camquality = ((QUALITY_MAX - val) * CAMQUALITY_MAX)
5396e62f PC	157	/ (QUALITY_MAX - QUALITY_MIN);
	158	quality_commands[0][1] += camquality;
	159
	160	jlj_write2(gspca_dev, quality_commands[0]);
	161	jlj_write2(gspca_dev, quality_commands[1]);
	162	}
	163
bfaab899	164	static void setautogain(struct gspca_dev *gspca_dev, s32 val)
5396e62f	165	{
5396e62f PC	166	u8 autogain_commands[][2] = {
	167	{0x94, 0x02},
	168	{0xcf, 0x00}
	169	};
	170
bfaab899	171	autogain_commands[1][1] = val << 4;
5396e62f PC	172
	173	jlj_write2(gspca_dev, autogain_commands[0]);
	174	jlj_write2(gspca_dev, autogain_commands[1]);
	175	}
	176
bfaab899	177	static void setred(struct gspca_dev *gspca_dev, s32 val)
5396e62f	178	{
5396e62f PC	179	u8 setred_commands[][2] = {
	180	{0x94, 0x02},
	181	{0xe6, 0x00}
	182	};
	183
bfaab899	184	setred_commands[1][1] = val;
5396e62f PC	185
	186	jlj_write2(gspca_dev, setred_commands[0]);
	187	jlj_write2(gspca_dev, setred_commands[1]);
	188	}
	189
bfaab899	190	static void setgreen(struct gspca_dev *gspca_dev, s32 val)
5396e62f	191	{
5396e62f PC	192	u8 setgreen_commands[][2] = {
	193	{0x94, 0x02},
	194	{0xe7, 0x00}
	195	};
	196
bfaab899	197	setgreen_commands[1][1] = val;
5396e62f PC	198
	199	jlj_write2(gspca_dev, setgreen_commands[0]);
	200	jlj_write2(gspca_dev, setgreen_commands[1]);
	201	}
	202
bfaab899	203	static void setblue(struct gspca_dev *gspca_dev, s32 val)
5396e62f	204	{
5396e62f PC	205	u8 setblue_commands[][2] = {
	206	{0x94, 0x02},
	207	{0xe9, 0x00}
	208	};
	209
bfaab899	210	setblue_commands[1][1] = val;
5396e62f PC	211
	212	jlj_write2(gspca_dev, setblue_commands[0]);
	213	jlj_write2(gspca_dev, setblue_commands[1]);
	214	}
	215
3040b043 TK	216	static int jlj_start(struct gspca_dev *gspca_dev)
	217	{
	218	int i;
713b466f	219	int start_commands_size;
3040b043	220	u8 response = 0xff;
c3d86927	221	struct sd sd = (struct sd ) gspca_dev;
3040b043	222	struct jlj_command start_commands[] = {
713b466f PC	223	{{0x71, 0x81}, 0, 0},
	224	{{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
	225	{{0x95, 0x70}, 1, 0},
	226	{{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
	227	{{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
	228	{{0x95, 0x70}, 1, 0},
	229	{{0x71, 0x00}, 0, 0}, /* start streaming ??*/
	230	{{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
	231	{{0x95, 0x70}, 1, 0},
	232	#define SPORTSCAM_DV15_CMD_SIZE 9
	233	{{0x94, 0x02}, 0, 0},
	234	{{0xde, 0x24}, 0, 0},
	235	{{0x94, 0x02}, 0, 0},
	236	{{0xdd, 0xf0}, 0, 0},
	237	{{0x94, 0x02}, 0, 0},
	238	{{0xe3, 0x2c}, 0, 0},
	239	{{0x94, 0x02}, 0, 0},
	240	{{0xe4, 0x00}, 0, 0},
	241	{{0x94, 0x02}, 0, 0},
	242	{{0xe5, 0x00}, 0, 0},
	243	{{0x94, 0x02}, 0, 0},
	244	{{0xe6, 0x2c}, 0, 0},
	245	{{0x94, 0x03}, 0, 0},
5396e62f	246	{{0xaa, 0x00}, 0, 0}
3040b043	247	};
c3d86927 PC	248
c3d86927 PC	249	sd->blocks_left = 0;
713b466f PC	250	/* Under Windows, USB spy shows that only the 9 first start
	251	* commands are used for SPORTSCAM_DV15 webcam
	252	*/
	253	if (sd->type == SPORTSCAM_DV15)
	254	start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
	255	else
	256	start_commands_size = ARRAY_SIZE(start_commands);
	257
	258	for (i = 0; i < start_commands_size; i++) {
8715b16e	259	jlj_write2(gspca_dev, start_commands[i].instruction);
713b466f PC	260	if (start_commands[i].delay)
713b466f PC	261	msleep(start_commands[i].delay);
3040b043	262	if (start_commands[i].ack_wanted)
8715b16e	263	jlj_read1(gspca_dev, response);
3040b043	264	}
bfaab899	265	setcamquality(gspca_dev, v4l2_ctrl_g_ctrl(sd->jpegqual));
5396e62f	266	msleep(2);
bfaab899	267	setfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->freq));
8715b16e PC	268	if (gspca_dev->usb_err < 0)
	269	PDEBUG(D_ERR, "Start streaming command failed");
	270	return gspca_dev->usb_err;
3040b043 TK	271	}
3040b043 TK	272
c3d86927 PC	273	static void sd_pkt_scan(struct gspca_dev *gspca_dev,
c3d86927 PC	274	u8 *data, int len)
3040b043	275	{
c3d86927	276	struct sd sd = (struct sd ) gspca_dev;
3040b043	277	int packet_type;
c3d86927	278	u32 header_marker;
3040b043	279
c3d86927 PC	280	PDEBUG(D_STREAM, "Got %d bytes out of %d for Block 0",
	281	len, JEILINJ_MAX_TRANSFER);
	282	if (len != JEILINJ_MAX_TRANSFER) {
	283	PDEBUG(D_PACK, "bad length");
	284	goto discard;
3040b043	285	}
c3d86927 PC	286	/* check if it's start of frame */
	287	header_marker = ((u32 *)data)[0];
	288	if (header_marker == FRAME_START) {
	289	sd->blocks_left = data[0x0a] - 1;
	290	PDEBUG(D_STREAM, "blocks_left = 0x%x", sd->blocks_left);
6ca3f255	291	/* Start a new frame, and add the JPEG header, first thing */
76dd272b	292	gspca_frame_add(gspca_dev, FIRST_PACKET,
c3d86927	293	sd->jpeg_hdr, JPEG_HDR_SZ);
76dd272b JFM	294	/* Toss line 0 of data block 0, keep the rest. */
76dd272b JFM	295	gspca_frame_add(gspca_dev, INTER_PACKET,
c3d86927	296	data + FRAME_HEADER_LEN,
3040b043	297	JEILINJ_MAX_TRANSFER - FRAME_HEADER_LEN);
c3d86927 PC	298	} else if (sd->blocks_left > 0) {
	299	PDEBUG(D_STREAM, "%d blocks remaining for frame",
	300	sd->blocks_left);
	301	sd->blocks_left -= 1;
	302	if (sd->blocks_left == 0)
	303	packet_type = LAST_PACKET;
	304	else
	305	packet_type = INTER_PACKET;
	306	gspca_frame_add(gspca_dev, packet_type,
	307	data, JEILINJ_MAX_TRANSFER);
	308	} else
	309	goto discard;
	310	return;
	311	discard:
	312	/* Discard data until a new frame starts. */
	313	gspca_dev->last_packet_type = DISCARD_PACKET;
3040b043 TK	314	}
	315
	316	/* This function is called at probe time just before sd_init */
	317	static int sd_config(struct gspca_dev *gspca_dev,
	318	const struct usb_device_id *id)
	319	{
	320	struct cam *cam = &gspca_dev->cam;
	321	struct sd dev = (struct sd ) gspca_dev;
	322
713b466f	323	dev->type = id->driver_info;
5396e62f	324	dev->quality = QUALITY_DEF;
7d84a179	325
3040b043	326	cam->cam_mode = jlj_mode;
6f8efcfb	327	cam->nmodes = ARRAY_SIZE(jlj_mode);
3040b043	328	cam->bulk = 1;
c3d86927 PC	329	cam->bulk_nurbs = 1;
c3d86927 PC	330	cam->bulk_size = JEILINJ_MAX_TRANSFER;
3040b043 TK	331	return 0;
	332	}
	333
c3d86927	334	static void sd_stopN(struct gspca_dev *gspca_dev)
3040b043	335	{
c3d86927 PC	336	int i;
c3d86927 PC	337	u8 *buf;
7d84a179	338	static u8 stop_commands[][2] = {
c3d86927 PC	339	{0x71, 0x00},
	340	{0x70, 0x09},
	341	{0x71, 0x80},
	342	{0x70, 0x05}
	343	};
	344
	345	for (;;) {
	346	/* get the image remaining blocks */
	347	usb_bulk_msg(gspca_dev->dev,
	348	gspca_dev->urb[0]->pipe,
	349	gspca_dev->urb[0]->transfer_buffer,
	350	JEILINJ_MAX_TRANSFER, NULL,
	351	JEILINJ_DATA_TIMEOUT);
3040b043	352
c3d86927 PC	353	/* search for 0xff 0xd9 (EOF for JPEG) */
	354	i = 0;
	355	buf = gspca_dev->urb[0]->transfer_buffer;
	356	while ((i < (JEILINJ_MAX_TRANSFER - 1)) &&
	357	((buf[i] != 0xff) \|\| (buf[i+1] != 0xd9)))
	358	i++;
	359
	360	if (i != (JEILINJ_MAX_TRANSFER - 1))
	361	/* last remaining block found */
	362	break;
	363	}
	364
	365	for (i = 0; i < ARRAY_SIZE(stop_commands); i++)
	366	jlj_write2(gspca_dev, stop_commands[i]);
3040b043 TK	367	}
	368
	369	/* this function is called at probe and resume time */
	370	static int sd_init(struct gspca_dev *gspca_dev)
	371	{
8715b16e	372	return gspca_dev->usb_err;
3040b043 TK	373	}
	374
	375	/* Set up for getting frames. */
	376	static int sd_start(struct gspca_dev *gspca_dev)
	377	{
	378	struct sd dev = (struct sd ) gspca_dev;
3040b043 TK	379
3040b043 TK	380	/* create the JPEG header */
3040b043 TK	381	jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
	382	0x21); /* JPEG 422 */
	383	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
6f8efcfb PC	384	PDEBUG(D_STREAM, "Start streaming at %dx%d",
6f8efcfb PC	385	gspca_dev->height, gspca_dev->width);
8715b16e PC	386	jlj_start(gspca_dev);
8715b16e PC	387	return gspca_dev->usb_err;
3040b043 TK	388	}
	389
	390	/* Table of supported USB devices */
95c967c1	391	static const struct usb_device_id device_table[] = {
713b466f PC	392	{USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
713b466f PC	393	{USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
3040b043 TK	394	{}
	395	};
	396
	397	MODULE_DEVICE_TABLE(usb, device_table);
	398
bfaab899	399	static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
5396e62f	400	{
bfaab899 HV	401	struct gspca_dev *gspca_dev =
	402	container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
	403	struct sd sd = (struct sd )gspca_dev;
	404
	405	gspca_dev->usb_err = 0;
	406
	407	if (!gspca_dev->streaming)
	408	return 0;
	409
	410	switch (ctrl->id) {
5396e62f	411	case V4L2_CID_POWER_LINE_FREQUENCY:
bfaab899 HV	412	setfreq(gspca_dev, ctrl->val);
	413	break;
	414	case V4L2_CID_RED_BALANCE:
	415	setred(gspca_dev, ctrl->val);
	416	break;
	417	case V4L2_CID_GAIN:
	418	setgreen(gspca_dev, ctrl->val);
	419	break;
	420	case V4L2_CID_BLUE_BALANCE:
	421	setblue(gspca_dev, ctrl->val);
	422	break;
	423	case V4L2_CID_AUTOGAIN:
	424	setautogain(gspca_dev, ctrl->val);
	425	break;
	426	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
	427	jpeg_set_qual(sd->jpeg_hdr, ctrl->val);
	428	setcamquality(gspca_dev, ctrl->val);
5396e62f PC	429	break;
5396e62f PC	430	}
bfaab899 HV	431	return gspca_dev->usb_err;
	432	}
	433
	434	static const struct v4l2_ctrl_ops sd_ctrl_ops = {
	435	.s_ctrl = sd_s_ctrl,
	436	};
	437
	438	static int sd_init_controls(struct gspca_dev *gspca_dev)
	439	{
	440	struct sd sd = (struct sd )gspca_dev;
	441	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
	442	static const struct v4l2_ctrl_config custom_autogain = {
	443	.ops = &sd_ctrl_ops,
	444	.id = V4L2_CID_AUTOGAIN,
	445	.type = V4L2_CTRL_TYPE_INTEGER,
	446	.name = "Automatic Gain (and Exposure)",
	447	.max = 3,
	448	.step = 1,
	449	.def = 0,
	450	};
	451
	452	gspca_dev->vdev.ctrl_handler = hdl;
	453	v4l2_ctrl_handler_init(hdl, 6);
	454	sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
	455	V4L2_CID_POWER_LINE_FREQUENCY,
	456	V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1,
	457	V4L2_CID_POWER_LINE_FREQUENCY_60HZ);
	458	v4l2_ctrl_new_custom(hdl, &custom_autogain, NULL);
	459	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	460	V4L2_CID_RED_BALANCE, 0, 3, 1, 2);
	461	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	462	V4L2_CID_GAIN, 0, 3, 1, 2);
	463	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	464	V4L2_CID_BLUE_BALANCE, 0, 3, 1, 2);
	465	sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	466	V4L2_CID_JPEG_COMPRESSION_QUALITY,
	467	QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);
	468
	469	if (hdl->error) {
	470	pr_err("Could not initialize controls\n");
	471	return hdl->error;
	472	}
	473	return 0;
5396e62f PC	474	}
	475
	476	static int sd_set_jcomp(struct gspca_dev *gspca_dev,
d88aab53	477	const struct v4l2_jpegcompression *jcomp)
5396e62f PC	478	{
	479	struct sd sd = (struct sd ) gspca_dev;
	480
bfaab899	481	v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);
5396e62f PC	482	return 0;
	483	}
	484
	485	static int sd_get_jcomp(struct gspca_dev *gspca_dev,
	486	struct v4l2_jpegcompression *jcomp)
	487	{
	488	struct sd sd = (struct sd ) gspca_dev;
	489
	490	memset(jcomp, 0, sizeof *jcomp);
bfaab899	491	jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);
5396e62f PC	492	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
	493	\| V4L2_JPEG_MARKER_DQT;
	494	return 0;
	495	}
	496
	497
3040b043	498	/* sub-driver description */
713b466f PC	499	static const struct sd_desc sd_desc_sakar_57379 = {
	500	.name = MODULE_NAME,
	501	.config = sd_config,
	502	.init = sd_init,
	503	.start = sd_start,
	504	.stopN = sd_stopN,
	505	.pkt_scan = sd_pkt_scan,
	506	};
	507
	508	/* sub-driver description */
	509	static const struct sd_desc sd_desc_sportscam_dv15 = {
3040b043 TK	510	.name = MODULE_NAME,
	511	.config = sd_config,
	512	.init = sd_init,
bfaab899	513	.init_controls = sd_init_controls,
3040b043	514	.start = sd_start,
c3d86927 PC	515	.stopN = sd_stopN,
c3d86927 PC	516	.pkt_scan = sd_pkt_scan,
5396e62f PC	517	.get_jcomp = sd_get_jcomp,
5396e62f PC	518	.set_jcomp = sd_set_jcomp,
3040b043 TK	519	};
3040b043 TK	520
713b466f PC	521	static const struct sd_desc *sd_desc[2] = {
	522	&sd_desc_sakar_57379,
	523	&sd_desc_sportscam_dv15
	524	};
	525
3040b043 TK	526	/* -- device connect -- */
	527	static int sd_probe(struct usb_interface *intf,
	528	const struct usb_device_id *id)
	529	{
	530	return gspca_dev_probe(intf, id,
713b466f	531	sd_desc[id->driver_info],
3040b043 TK	532	sizeof(struct sd),
	533	THIS_MODULE);
	534	}
	535
	536	static struct usb_driver sd_driver = {
	537	.name = MODULE_NAME,
	538	.id_table = device_table,
	539	.probe = sd_probe,
	540	.disconnect = gspca_disconnect,
	541	#ifdef CONFIG_PM
	542	.suspend = gspca_suspend,
	543	.resume = gspca_resume,
8bb58964	544	.reset_resume = gspca_resume,
3040b043 TK	545	#endif
	546	};
	547
ecb3b2b3	548	module_usb_driver(sd_driver);