[mirror_ubuntu-artful-kernel.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.
 */

#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)
		PERR("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->pixfmt.height,
			gspca_dev->pixfmt.width,
			0x21);          /* JPEG 422 */
	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
	PDEBUG(D_STREAM, "Start streaming at %dx%d",
		gspca_dev->pixfmt.height, gspca_dev->pixfmt.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.
3040b043 TK	21	*/
3040b043 TK	22
133a9fe9 JP	23	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
133a9fe9 JP	24
3040b043 TK	25	#define MODULE_NAME "jeilinj"
3040b043 TK	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	};
5396e62f PC	49
	50	#define CAMQUALITY_MIN 0 /* highest cam quality */
	51	#define CAMQUALITY_MAX 97 /* lowest cam quality */
	52
3040b043 TK	53	/* Structure to hold all of our device specific stuff */
	54	struct sd {
	55	struct gspca_dev gspca_dev; /* !! must be the first item */
c3d86927	56	int blocks_left;
3040b043	57	const struct v4l2_pix_format *cap_mode;
bfaab899 HV	58	struct v4l2_ctrl *freq;
bfaab899 HV	59	struct v4l2_ctrl *jpegqual;
3040b043	60	/* Driver stuff */
713b466f	61	u8 type;
3040b043	62	u8 quality; /* image quality */
5396e62f PC	63	#define QUALITY_MIN 35
	64	#define QUALITY_MAX 85
	65	#define QUALITY_DEF 85
9a731a32	66	u8 jpeg_hdr[JPEG_HDR_SZ];
3040b043 TK	67	};
3040b043 TK	68
c3d86927 PC	69	struct jlj_command {
	70	unsigned char instruction[2];
	71	unsigned char ack_wanted;
713b466f	72	unsigned char delay;
c3d86927	73	};
3040b043 TK	74
	75	/* AFAICT these cameras will only do 320x240. */
	76	static struct v4l2_pix_format jlj_mode[] = {
	77	{ 320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	78	.bytesperline = 320,
	79	.sizeimage = 320 * 240,
	80	.colorspace = V4L2_COLORSPACE_JPEG,
6f8efcfb PC	81	.priv = 0},
	82	{ 640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
	83	.bytesperline = 640,
	84	.sizeimage = 640 * 480,
	85	.colorspace = V4L2_COLORSPACE_JPEG,
3040b043 TK	86	.priv = 0}
	87	};
	88
	89	/*
	90	* cam uses endpoint 0x03 to send commands, 0x84 for read commands,
	91	* and 0x82 for bulk transfer.
	92	*/
	93
	94	/* All commands are two bytes only */
8715b16e	95	static void jlj_write2(struct gspca_dev gspca_dev, unsigned char command)
3040b043 TK	96	{
	97	int retval;
	98
8715b16e PC	99	if (gspca_dev->usb_err < 0)
8715b16e PC	100	return;
3040b043 TK	101	memcpy(gspca_dev->usb_buf, command, 2);
	102	retval = usb_bulk_msg(gspca_dev->dev,
	103	usb_sndbulkpipe(gspca_dev->dev, 3),
	104	gspca_dev->usb_buf, 2, NULL, 500);
8715b16e	105	if (retval < 0) {
133a9fe9 JP	106	pr_err("command write [%02x] error %d\n",
133a9fe9 JP	107	gspca_dev->usb_buf[0], retval);
8715b16e PC	108	gspca_dev->usb_err = retval;
8715b16e PC	109	}
3040b043 TK	110	}
	111
	112	/* Responses are one byte only */
9825f376	113	static void jlj_read1(struct gspca_dev gspca_dev, unsigned char response)
3040b043 TK	114	{
	115	int retval;
	116
8715b16e PC	117	if (gspca_dev->usb_err < 0)
8715b16e PC	118	return;
3040b043 TK	119	retval = usb_bulk_msg(gspca_dev->dev,
	120	usb_rcvbulkpipe(gspca_dev->dev, 0x84),
	121	gspca_dev->usb_buf, 1, NULL, 500);
9825f376	122	*response = gspca_dev->usb_buf[0];
8715b16e	123	if (retval < 0) {
133a9fe9 JP	124	pr_err("read command [%02x] error %d\n",
133a9fe9 JP	125	gspca_dev->usb_buf[0], retval);
8715b16e PC	126	gspca_dev->usb_err = retval;
8715b16e PC	127	}
3040b043 TK	128	}
3040b043 TK	129
bfaab899	130	static void setfreq(struct gspca_dev *gspca_dev, s32 val)
5396e62f	131	{
5396e62f PC	132	u8 freq_commands[][2] = {
	133	{0x71, 0x80},
	134	{0x70, 0x07}
	135	};
	136
bfaab899	137	freq_commands[0][1] \|= val >> 1;
5396e62f PC	138
	139	jlj_write2(gspca_dev, freq_commands[0]);
	140	jlj_write2(gspca_dev, freq_commands[1]);
	141	}
	142
bfaab899	143	static void setcamquality(struct gspca_dev *gspca_dev, s32 val)
5396e62f	144	{
5396e62f PC	145	u8 quality_commands[][2] = {
	146	{0x71, 0x1E},
	147	{0x70, 0x06}
	148	};
	149	u8 camquality;
	150
	151	/* adapt camera quality from jpeg quality */
bfaab899	152	camquality = ((QUALITY_MAX - val) * CAMQUALITY_MAX)
5396e62f PC	153	/ (QUALITY_MAX - QUALITY_MIN);
	154	quality_commands[0][1] += camquality;
	155
	156	jlj_write2(gspca_dev, quality_commands[0]);
	157	jlj_write2(gspca_dev, quality_commands[1]);
	158	}
	159
bfaab899	160	static void setautogain(struct gspca_dev *gspca_dev, s32 val)
5396e62f	161	{
5396e62f PC	162	u8 autogain_commands[][2] = {
	163	{0x94, 0x02},
	164	{0xcf, 0x00}
	165	};
	166
bfaab899	167	autogain_commands[1][1] = val << 4;
5396e62f PC	168
	169	jlj_write2(gspca_dev, autogain_commands[0]);
	170	jlj_write2(gspca_dev, autogain_commands[1]);
	171	}
	172
bfaab899	173	static void setred(struct gspca_dev *gspca_dev, s32 val)
5396e62f	174	{
5396e62f PC	175	u8 setred_commands[][2] = {
	176	{0x94, 0x02},
	177	{0xe6, 0x00}
	178	};
	179
bfaab899	180	setred_commands[1][1] = val;
5396e62f PC	181
	182	jlj_write2(gspca_dev, setred_commands[0]);
	183	jlj_write2(gspca_dev, setred_commands[1]);
	184	}
	185
bfaab899	186	static void setgreen(struct gspca_dev *gspca_dev, s32 val)
5396e62f	187	{
5396e62f PC	188	u8 setgreen_commands[][2] = {
	189	{0x94, 0x02},
	190	{0xe7, 0x00}
	191	};
	192
bfaab899	193	setgreen_commands[1][1] = val;
5396e62f PC	194
	195	jlj_write2(gspca_dev, setgreen_commands[0]);
	196	jlj_write2(gspca_dev, setgreen_commands[1]);
	197	}
	198
bfaab899	199	static void setblue(struct gspca_dev *gspca_dev, s32 val)
5396e62f	200	{
5396e62f PC	201	u8 setblue_commands[][2] = {
	202	{0x94, 0x02},
	203	{0xe9, 0x00}
	204	};
	205
bfaab899	206	setblue_commands[1][1] = val;
5396e62f PC	207
	208	jlj_write2(gspca_dev, setblue_commands[0]);
	209	jlj_write2(gspca_dev, setblue_commands[1]);
	210	}
	211
3040b043 TK	212	static int jlj_start(struct gspca_dev *gspca_dev)
	213	{
	214	int i;
713b466f	215	int start_commands_size;
3040b043	216	u8 response = 0xff;
c3d86927	217	struct sd sd = (struct sd ) gspca_dev;
3040b043	218	struct jlj_command start_commands[] = {
713b466f PC	219	{{0x71, 0x81}, 0, 0},
	220	{{0x70, 0x05}, 0, JEILINJ_CMD_DELAY},
	221	{{0x95, 0x70}, 1, 0},
	222	{{0x71, 0x81 - gspca_dev->curr_mode}, 0, 0},
	223	{{0x70, 0x04}, 0, JEILINJ_CMD_DELAY},
	224	{{0x95, 0x70}, 1, 0},
	225	{{0x71, 0x00}, 0, 0}, /* start streaming ??*/
	226	{{0x70, 0x08}, 0, JEILINJ_CMD_DELAY},
	227	{{0x95, 0x70}, 1, 0},
	228	#define SPORTSCAM_DV15_CMD_SIZE 9
	229	{{0x94, 0x02}, 0, 0},
	230	{{0xde, 0x24}, 0, 0},
	231	{{0x94, 0x02}, 0, 0},
	232	{{0xdd, 0xf0}, 0, 0},
	233	{{0x94, 0x02}, 0, 0},
	234	{{0xe3, 0x2c}, 0, 0},
	235	{{0x94, 0x02}, 0, 0},
	236	{{0xe4, 0x00}, 0, 0},
	237	{{0x94, 0x02}, 0, 0},
	238	{{0xe5, 0x00}, 0, 0},
	239	{{0x94, 0x02}, 0, 0},
	240	{{0xe6, 0x2c}, 0, 0},
	241	{{0x94, 0x03}, 0, 0},
5396e62f	242	{{0xaa, 0x00}, 0, 0}
3040b043	243	};
c3d86927 PC	244
c3d86927 PC	245	sd->blocks_left = 0;
713b466f PC	246	/* Under Windows, USB spy shows that only the 9 first start
	247	* commands are used for SPORTSCAM_DV15 webcam
	248	*/
	249	if (sd->type == SPORTSCAM_DV15)
	250	start_commands_size = SPORTSCAM_DV15_CMD_SIZE;
	251	else
	252	start_commands_size = ARRAY_SIZE(start_commands);
	253
	254	for (i = 0; i < start_commands_size; i++) {
8715b16e	255	jlj_write2(gspca_dev, start_commands[i].instruction);
713b466f PC	256	if (start_commands[i].delay)
713b466f PC	257	msleep(start_commands[i].delay);
3040b043	258	if (start_commands[i].ack_wanted)
9825f376	259	jlj_read1(gspca_dev, &response);
3040b043	260	}
bfaab899	261	setcamquality(gspca_dev, v4l2_ctrl_g_ctrl(sd->jpegqual));
5396e62f	262	msleep(2);
bfaab899	263	setfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->freq));
8715b16e	264	if (gspca_dev->usb_err < 0)
c93396e1	265	PERR("Start streaming command failed");
8715b16e	266	return gspca_dev->usb_err;
3040b043 TK	267	}
3040b043 TK	268
c3d86927 PC	269	static void sd_pkt_scan(struct gspca_dev *gspca_dev,
c3d86927 PC	270	u8 *data, int len)
3040b043	271	{
c3d86927	272	struct sd sd = (struct sd ) gspca_dev;
3040b043	273	int packet_type;
c3d86927	274	u32 header_marker;
3040b043	275
c3d86927 PC	276	PDEBUG(D_STREAM, "Got %d bytes out of %d for Block 0",
	277	len, JEILINJ_MAX_TRANSFER);
	278	if (len != JEILINJ_MAX_TRANSFER) {
	279	PDEBUG(D_PACK, "bad length");
	280	goto discard;
3040b043	281	}
c3d86927 PC	282	/* check if it's start of frame */
	283	header_marker = ((u32 *)data)[0];
	284	if (header_marker == FRAME_START) {
	285	sd->blocks_left = data[0x0a] - 1;
	286	PDEBUG(D_STREAM, "blocks_left = 0x%x", sd->blocks_left);
6ca3f255	287	/* Start a new frame, and add the JPEG header, first thing */
76dd272b	288	gspca_frame_add(gspca_dev, FIRST_PACKET,
c3d86927	289	sd->jpeg_hdr, JPEG_HDR_SZ);
76dd272b JFM	290	/* Toss line 0 of data block 0, keep the rest. */
76dd272b JFM	291	gspca_frame_add(gspca_dev, INTER_PACKET,
c3d86927	292	data + FRAME_HEADER_LEN,
3040b043	293	JEILINJ_MAX_TRANSFER - FRAME_HEADER_LEN);
c3d86927 PC	294	} else if (sd->blocks_left > 0) {
	295	PDEBUG(D_STREAM, "%d blocks remaining for frame",
	296	sd->blocks_left);
	297	sd->blocks_left -= 1;
	298	if (sd->blocks_left == 0)
	299	packet_type = LAST_PACKET;
	300	else
	301	packet_type = INTER_PACKET;
	302	gspca_frame_add(gspca_dev, packet_type,
	303	data, JEILINJ_MAX_TRANSFER);
	304	} else
	305	goto discard;
	306	return;
	307	discard:
	308	/* Discard data until a new frame starts. */
	309	gspca_dev->last_packet_type = DISCARD_PACKET;
3040b043 TK	310	}
	311
	312	/* This function is called at probe time just before sd_init */
	313	static int sd_config(struct gspca_dev *gspca_dev,
	314	const struct usb_device_id *id)
	315	{
	316	struct cam *cam = &gspca_dev->cam;
	317	struct sd dev = (struct sd ) gspca_dev;
	318
713b466f	319	dev->type = id->driver_info;
5396e62f	320	dev->quality = QUALITY_DEF;
7d84a179	321
3040b043	322	cam->cam_mode = jlj_mode;
6f8efcfb	323	cam->nmodes = ARRAY_SIZE(jlj_mode);
3040b043	324	cam->bulk = 1;
c3d86927 PC	325	cam->bulk_nurbs = 1;
c3d86927 PC	326	cam->bulk_size = JEILINJ_MAX_TRANSFER;
3040b043 TK	327	return 0;
	328	}
	329
c3d86927	330	static void sd_stopN(struct gspca_dev *gspca_dev)
3040b043	331	{
c3d86927 PC	332	int i;
c3d86927 PC	333	u8 *buf;
7d84a179	334	static u8 stop_commands[][2] = {
c3d86927 PC	335	{0x71, 0x00},
	336	{0x70, 0x09},
	337	{0x71, 0x80},
	338	{0x70, 0x05}
	339	};
	340
	341	for (;;) {
	342	/* get the image remaining blocks */
	343	usb_bulk_msg(gspca_dev->dev,
	344	gspca_dev->urb[0]->pipe,
	345	gspca_dev->urb[0]->transfer_buffer,
	346	JEILINJ_MAX_TRANSFER, NULL,
	347	JEILINJ_DATA_TIMEOUT);
3040b043	348
c3d86927 PC	349	/* search for 0xff 0xd9 (EOF for JPEG) */
	350	i = 0;
	351	buf = gspca_dev->urb[0]->transfer_buffer;
	352	while ((i < (JEILINJ_MAX_TRANSFER - 1)) &&
	353	((buf[i] != 0xff) \|\| (buf[i+1] != 0xd9)))
	354	i++;
	355
	356	if (i != (JEILINJ_MAX_TRANSFER - 1))
	357	/* last remaining block found */
	358	break;
	359	}
	360
	361	for (i = 0; i < ARRAY_SIZE(stop_commands); i++)
	362	jlj_write2(gspca_dev, stop_commands[i]);
3040b043 TK	363	}
	364
	365	/* this function is called at probe and resume time */
	366	static int sd_init(struct gspca_dev *gspca_dev)
	367	{
8715b16e	368	return gspca_dev->usb_err;
3040b043 TK	369	}
	370
	371	/* Set up for getting frames. */
	372	static int sd_start(struct gspca_dev *gspca_dev)
	373	{
	374	struct sd dev = (struct sd ) gspca_dev;
3040b043 TK	375
3040b043 TK	376	/* create the JPEG header */
1966bc2a OZ	377	jpeg_define(dev->jpeg_hdr, gspca_dev->pixfmt.height,
1966bc2a OZ	378	gspca_dev->pixfmt.width,
3040b043 TK	379	0x21); /* JPEG 422 */
3040b043 TK	380	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
6f8efcfb	381	PDEBUG(D_STREAM, "Start streaming at %dx%d",
1966bc2a	382	gspca_dev->pixfmt.height, gspca_dev->pixfmt.width);
8715b16e PC	383	jlj_start(gspca_dev);
8715b16e PC	384	return gspca_dev->usb_err;
3040b043 TK	385	}
	386
	387	/* Table of supported USB devices */
95c967c1	388	static const struct usb_device_id device_table[] = {
713b466f PC	389	{USB_DEVICE(0x0979, 0x0280), .driver_info = SAKAR_57379},
713b466f PC	390	{USB_DEVICE(0x0979, 0x0270), .driver_info = SPORTSCAM_DV15},
3040b043 TK	391	{}
	392	};
	393
	394	MODULE_DEVICE_TABLE(usb, device_table);
	395
bfaab899	396	static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
5396e62f	397	{
bfaab899 HV	398	struct gspca_dev *gspca_dev =
	399	container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
	400	struct sd sd = (struct sd )gspca_dev;
	401
	402	gspca_dev->usb_err = 0;
	403
	404	if (!gspca_dev->streaming)
	405	return 0;
	406
	407	switch (ctrl->id) {
5396e62f	408	case V4L2_CID_POWER_LINE_FREQUENCY:
bfaab899 HV	409	setfreq(gspca_dev, ctrl->val);
	410	break;
	411	case V4L2_CID_RED_BALANCE:
	412	setred(gspca_dev, ctrl->val);
	413	break;
	414	case V4L2_CID_GAIN:
	415	setgreen(gspca_dev, ctrl->val);
	416	break;
	417	case V4L2_CID_BLUE_BALANCE:
	418	setblue(gspca_dev, ctrl->val);
	419	break;
	420	case V4L2_CID_AUTOGAIN:
	421	setautogain(gspca_dev, ctrl->val);
	422	break;
	423	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
	424	jpeg_set_qual(sd->jpeg_hdr, ctrl->val);
	425	setcamquality(gspca_dev, ctrl->val);
5396e62f PC	426	break;
5396e62f PC	427	}
bfaab899 HV	428	return gspca_dev->usb_err;
	429	}
	430
	431	static const struct v4l2_ctrl_ops sd_ctrl_ops = {
	432	.s_ctrl = sd_s_ctrl,
	433	};
	434
	435	static int sd_init_controls(struct gspca_dev *gspca_dev)
	436	{
	437	struct sd sd = (struct sd )gspca_dev;
	438	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
	439	static const struct v4l2_ctrl_config custom_autogain = {
	440	.ops = &sd_ctrl_ops,
	441	.id = V4L2_CID_AUTOGAIN,
	442	.type = V4L2_CTRL_TYPE_INTEGER,
	443	.name = "Automatic Gain (and Exposure)",
	444	.max = 3,
	445	.step = 1,
	446	.def = 0,
	447	};
	448
	449	gspca_dev->vdev.ctrl_handler = hdl;
	450	v4l2_ctrl_handler_init(hdl, 6);
	451	sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
	452	V4L2_CID_POWER_LINE_FREQUENCY,
	453	V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 1,
	454	V4L2_CID_POWER_LINE_FREQUENCY_60HZ);
	455	v4l2_ctrl_new_custom(hdl, &custom_autogain, NULL);
	456	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	457	V4L2_CID_RED_BALANCE, 0, 3, 1, 2);
	458	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	459	V4L2_CID_GAIN, 0, 3, 1, 2);
	460	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	461	V4L2_CID_BLUE_BALANCE, 0, 3, 1, 2);
	462	sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
	463	V4L2_CID_JPEG_COMPRESSION_QUALITY,
	464	QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);
	465
	466	if (hdl->error) {
	467	pr_err("Could not initialize controls\n");
	468	return hdl->error;
	469	}
	470	return 0;
5396e62f PC	471	}
	472
	473	static int sd_set_jcomp(struct gspca_dev *gspca_dev,
d88aab53	474	const struct v4l2_jpegcompression *jcomp)
5396e62f PC	475	{
	476	struct sd sd = (struct sd ) gspca_dev;
	477
bfaab899	478	v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);
5396e62f PC	479	return 0;
	480	}
	481
	482	static int sd_get_jcomp(struct gspca_dev *gspca_dev,
	483	struct v4l2_jpegcompression *jcomp)
	484	{
	485	struct sd sd = (struct sd ) gspca_dev;
	486
	487	memset(jcomp, 0, sizeof *jcomp);
bfaab899	488	jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);
5396e62f PC	489	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
	490	\| V4L2_JPEG_MARKER_DQT;
	491	return 0;
	492	}
	493
	494
3040b043	495	/* sub-driver description */
713b466f PC	496	static const struct sd_desc sd_desc_sakar_57379 = {
	497	.name = MODULE_NAME,
	498	.config = sd_config,
	499	.init = sd_init,
	500	.start = sd_start,
	501	.stopN = sd_stopN,
	502	.pkt_scan = sd_pkt_scan,
	503	};
	504
	505	/* sub-driver description */
	506	static const struct sd_desc sd_desc_sportscam_dv15 = {
3040b043 TK	507	.name = MODULE_NAME,
	508	.config = sd_config,
	509	.init = sd_init,
bfaab899	510	.init_controls = sd_init_controls,
3040b043	511	.start = sd_start,
c3d86927 PC	512	.stopN = sd_stopN,
c3d86927 PC	513	.pkt_scan = sd_pkt_scan,
5396e62f PC	514	.get_jcomp = sd_get_jcomp,
5396e62f PC	515	.set_jcomp = sd_set_jcomp,
3040b043 TK	516	};
3040b043 TK	517
713b466f PC	518	static const struct sd_desc *sd_desc[2] = {
	519	&sd_desc_sakar_57379,
	520	&sd_desc_sportscam_dv15
	521	};
	522
3040b043 TK	523	/* -- device connect -- */
	524	static int sd_probe(struct usb_interface *intf,
	525	const struct usb_device_id *id)
	526	{
	527	return gspca_dev_probe(intf, id,
713b466f	528	sd_desc[id->driver_info],
3040b043 TK	529	sizeof(struct sd),
	530	THIS_MODULE);
	531	}
	532
	533	static struct usb_driver sd_driver = {
	534	.name = MODULE_NAME,
	535	.id_table = device_table,
	536	.probe = sd_probe,
	537	.disconnect = gspca_disconnect,
	538	#ifdef CONFIG_PM
	539	.suspend = gspca_suspend,
	540	.resume = gspca_resume,
8bb58964	541	.reset_resume = gspca_resume,
3040b043 TK	542	#endif
	543	};
	544
ecb3b2b3	545	module_usb_driver(sd_driver);