1 files changed, 409 insertions, 172 deletions

diff --git a/drivers/media/video/gspca/jeilinj.c b/drivers/media/video/gspca/jeilinj.c
index 36dae38b1e38..1bd9c4b542dd 100644
--- a/drivers/media/video/gspca/jeilinj.c
+++ b/drivers/media/video/gspca/jeilinj.c
@@ -6,6 +6,9 @@
  *
  * 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
@@ -23,7 +26,6 @@
 
 #define MODULE_NAME "jeilinj"
 
-#include <linux/workqueue.h>
 #include <linux/slab.h>
 #include "gspca.h"
 #include "jpeg.h"
@@ -34,29 +36,51 @@ 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  */
+
+enum e_ctrl {
+	LIGHTFREQ,
+	AUTOGAIN,
+	RED,
+	GREEN,
+	BLUE,
+	NCTRLS		/* number of controls */
+};
 
 /* Structure to hold all of our device specific stuff */
 struct sd {
 	struct gspca_dev gspca_dev;	/* !! must be the first item */
+	struct gspca_ctrl ctrls[NCTRLS];
+	int blocks_left;
 	const struct v4l2_pix_format *cap_mode;
 	/* Driver stuff */
-	struct work_struct work_struct;
-	struct workqueue_struct *work_thread;
+	u8 type;
 	u8 quality;				 /* image quality */
-	u8 jpegqual;				/* webcam 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;
-	};
+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[] = {
@@ -64,6 +88,11 @@ static struct v4l2_pix_format jlj_mode[] = {
 		.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}
 };
 
@@ -73,178 +102,295 @@ static struct v4l2_pix_format jlj_mode[] = {
  */
 
 /* All commands are two bytes only */
-static int jlj_write2(struct gspca_dev *gspca_dev, unsigned char *command)
+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)
+	if (retval < 0) {
 		err("command write [%02x] error %d",
 				gspca_dev->usb_buf[0], retval);
-	return retval;
+		gspca_dev->usb_err = retval;
+	}
 }
 
 /* Responses are one byte only */
-static int jlj_read1(struct gspca_dev *gspca_dev, unsigned char response)
+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)
+	if (retval < 0) {
 		err("read command [%02x] error %d",
 				gspca_dev->usb_buf[0], retval);
-	return retval;
+		gspca_dev->usb_err = retval;
+	}
 }
 
-static int jlj_start(struct gspca_dev *gspca_dev)
+static void setfreq(struct gspca_dev *gspca_dev)
 {
-	int i;
-	int retval = -1;
-	u8 response = 0xff;
-	struct jlj_command start_commands[] = {
-		{{0x71, 0x81}, 0},
-		{{0x70, 0x05}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x71, 0x81}, 0},
-		{{0x70, 0x04}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x71, 0x00}, 0},
-		{{0x70, 0x08}, 0},
-		{{0x95, 0x70}, 1},
-		{{0x94, 0x02}, 0},
-		{{0xde, 0x24}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xdd, 0xf0}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe3, 0x2c}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe4, 0x00}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe5, 0x00}, 0},
-		{{0x94, 0x02}, 0},
-		{{0xe6, 0x2c}, 0},
-		{{0x94, 0x03}, 0},
-		{{0xaa, 0x00}, 0},
-		{{0x71, 0x1e}, 0},
-		{{0x70, 0x06}, 0},
-		{{0x71, 0x80}, 0},
-		{{0x70, 0x07}, 0}
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 freq_commands[][2] = {
+		{0x71, 0x80},
+		{0x70, 0x07}
 	};
-	for (i = 0; i < ARRAY_SIZE(start_commands); i++) {
-		retval = jlj_write2(gspca_dev, start_commands[i].instruction);
-		if (retval < 0)
-			return retval;
-		if (start_commands[i].ack_wanted)
-			retval = jlj_read1(gspca_dev, response);
-		if (retval < 0)
-			return retval;
-	}
-	PDEBUG(D_ERR, "jlj_start retval is %d", retval);
-	return retval;
+
+	freq_commands[0][1] |= (sd->ctrls[LIGHTFREQ].val >> 1);
+
+	jlj_write2(gspca_dev, freq_commands[0]);
+	jlj_write2(gspca_dev, freq_commands[1]);
 }
 
-static int jlj_stop(struct gspca_dev *gspca_dev)
+static void setcamquality(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 quality_commands[][2] = {
+		{0x71, 0x1E},
+		{0x70, 0x06}
+	};
+	u8 camquality;
+
+	/* adapt camera quality from jpeg quality */
+	camquality = ((QUALITY_MAX - sd->quality) * 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)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 autogain_commands[][2] = {
+		{0x94, 0x02},
+		{0xcf, 0x00}
+	};
+
+	autogain_commands[1][1] = (sd->ctrls[AUTOGAIN].val << 4);
+
+	jlj_write2(gspca_dev, autogain_commands[0]);
+	jlj_write2(gspca_dev, autogain_commands[1]);
+}
+
+static void setred(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 setred_commands[][2] = {
+		{0x94, 0x02},
+		{0xe6, 0x00}
+	};
+
+	setred_commands[1][1] = sd->ctrls[RED].val;
+
+	jlj_write2(gspca_dev, setred_commands[0]);
+	jlj_write2(gspca_dev, setred_commands[1]);
+}
+
+static void setgreen(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 setgreen_commands[][2] = {
+		{0x94, 0x02},
+		{0xe7, 0x00}
+	};
+
+	setgreen_commands[1][1] = sd->ctrls[GREEN].val;
+
+	jlj_write2(gspca_dev, setgreen_commands[0]);
+	jlj_write2(gspca_dev, setgreen_commands[1]);
+}
+
+static void setblue(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 setblue_commands[][2] = {
+		{0x94, 0x02},
+		{0xe9, 0x00}
+	};
+
+	setblue_commands[1][1] = sd->ctrls[BLUE].val;
+
+	jlj_write2(gspca_dev, setblue_commands[0]);
+	jlj_write2(gspca_dev, setblue_commands[1]);
+}
+
+static const struct ctrl sd_ctrls[NCTRLS] = {
+[LIGHTFREQ] = {
+	    {
+		.id      = V4L2_CID_POWER_LINE_FREQUENCY,
+		.type    = V4L2_CTRL_TYPE_MENU,
+		.name    = "Light frequency filter",
+		.minimum = V4L2_CID_POWER_LINE_FREQUENCY_DISABLED, /* 1 */
+		.maximum = V4L2_CID_POWER_LINE_FREQUENCY_60HZ, /* 2 */
+		.step    = 1,
+		.default_value = V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+	    },
+	    .set_control = setfreq
+	},
+[AUTOGAIN] = {
+	    {
+		.id = V4L2_CID_AUTOGAIN,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "Automatic Gain (and Exposure)",
+		.minimum = 0,
+		.maximum = 3,
+		.step = 1,
+#define AUTOGAIN_DEF 0
+		.default_value = AUTOGAIN_DEF,
+	   },
+	   .set_control = setautogain
+	},
+[RED] = {
+	    {
+		.id = V4L2_CID_RED_BALANCE,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "red balance",
+		.minimum = 0,
+		.maximum = 3,
+		.step = 1,
+#define RED_BALANCE_DEF 2
+		.default_value = RED_BALANCE_DEF,
+	   },
+	   .set_control = setred
+	},
+
+[GREEN]	= {
+	    {
+		.id = V4L2_CID_GAIN,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "green balance",
+		.minimum = 0,
+		.maximum = 3,
+		.step = 1,
+#define GREEN_BALANCE_DEF 2
+		.default_value = GREEN_BALANCE_DEF,
+	   },
+	   .set_control = setgreen
+	},
+[BLUE] = {
+	    {
+		.id = V4L2_CID_BLUE_BALANCE,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "blue balance",
+		.minimum = 0,
+		.maximum = 3,
+		.step = 1,
+#define BLUE_BALANCE_DEF 2
+		.default_value = BLUE_BALANCE_DEF,
+	   },
+	   .set_control = setblue
+	},
+};
+
+static int jlj_start(struct gspca_dev *gspca_dev)
 {
 	int i;
-	int retval;
-	struct jlj_command stop_commands[] = {
-		{{0x71, 0x00}, 0},
-		{{0x70, 0x09}, 0},
-		{{0x71, 0x80}, 0},
-		{{0x70, 0x05}, 0}
+	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}
 	};
-	for (i = 0; i < ARRAY_SIZE(stop_commands); i++) {
-		retval = jlj_write2(gspca_dev, stop_commands[i].instruction);
-		if (retval < 0)
-			return retval;
+
+	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);
 	}
-	return retval;
+	setcamquality(gspca_dev);
+	msleep(2);
+	setfreq(gspca_dev);
+	if (gspca_dev->usb_err < 0)
+		PDEBUG(D_ERR, "Start streaming command failed");
+	return gspca_dev->usb_err;
 }
 
-/* This function is called as a workqueue function and runs whenever the camera
- * is streaming data. Because it is a workqueue function it is allowed to sleep
- * so we can use synchronous USB calls. To avoid possible collisions with other
- * threads attempting to use the camera's USB interface the gspca usb_lock is
- * used when performing the one USB control operation inside the workqueue,
- * which tells the camera to close the stream. In practice the only thing
- * which needs to be protected against is the usb_set_interface call that
- * gspca makes during stream_off. Otherwise the camera doesn't provide any
- * controls that the user could try to change.
- */
-
-static void jlj_dostream(struct work_struct *work)
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+			u8 *data, int len)
 {
-	struct sd *dev = container_of(work, struct sd, work_struct);
-	struct gspca_dev *gspca_dev = &dev->gspca_dev;
-	int blocks_left; /* 0x200-sized blocks remaining in current frame. */
-	int act_len;
+	struct sd *sd = (struct sd *) gspca_dev;
 	int packet_type;
-	int ret;
-	u8 *buffer;
+	u32 header_marker;
 
-	buffer = kmalloc(JEILINJ_MAX_TRANSFER, GFP_KERNEL | GFP_DMA);
-	if (!buffer) {
-		err("Couldn't allocate USB buffer");
-		goto quit_stream;
+	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;
 	}
-	while (gspca_dev->present && gspca_dev->streaming) {
-		/*
-		 * Now request data block 0. Line 0 reports the size
-		 * to download, in blocks of size 0x200, and also tells the
-		 * "actual" data size, in bytes, which seems best to ignore.
-		 */
-		ret = usb_bulk_msg(gspca_dev->dev,
-				usb_rcvbulkpipe(gspca_dev->dev, 0x82),
-				buffer, JEILINJ_MAX_TRANSFER, &act_len,
-				JEILINJ_DATA_TIMEOUT);
-		PDEBUG(D_STREAM,
-			"Got %d bytes out of %d for Block 0",
-			act_len, JEILINJ_MAX_TRANSFER);
-		if (ret < 0 || act_len < FRAME_HEADER_LEN)
-			goto quit_stream;
-		blocks_left = buffer[0x0a] - 1;
-		PDEBUG(D_STREAM, "blocks_left = 0x%x", blocks_left);
-
+	/* 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,
-				dev->jpeg_hdr, JPEG_HDR_SZ);
+				sd->jpeg_hdr, JPEG_HDR_SZ);
 		/* Toss line 0 of data block 0, keep the rest. */
 		gspca_frame_add(gspca_dev, INTER_PACKET,
-				buffer + FRAME_HEADER_LEN,
+				data + FRAME_HEADER_LEN,
 				JEILINJ_MAX_TRANSFER - FRAME_HEADER_LEN);
-
-		while (blocks_left > 0) {
-			if (!gspca_dev->present)
-				goto quit_stream;
-			ret = usb_bulk_msg(gspca_dev->dev,
-				usb_rcvbulkpipe(gspca_dev->dev, 0x82),
-				buffer, JEILINJ_MAX_TRANSFER, &act_len,
-				JEILINJ_DATA_TIMEOUT);
-			if (ret < 0 || act_len < JEILINJ_MAX_TRANSFER)
-				goto quit_stream;
-			PDEBUG(D_STREAM,
-				"%d blocks remaining for frame", blocks_left);
-			blocks_left -= 1;
-			if (blocks_left == 0)
-				packet_type = LAST_PACKET;
-			else
-				packet_type = INTER_PACKET;
-			gspca_frame_add(gspca_dev, packet_type,
-					buffer, JEILINJ_MAX_TRANSFER);
-		}
-	}
-quit_stream:
-	mutex_lock(&gspca_dev->usb_lock);
-	if (gspca_dev->present)
-		jlj_stop(gspca_dev);
-	mutex_unlock(&gspca_dev->usb_lock);
-	kfree(buffer);
+	} 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 */
@@ -254,78 +400,169 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	struct cam *cam = &gspca_dev->cam;
 	struct sd *dev  = (struct sd *) gspca_dev;
 
-	dev->quality  = 85;
-	dev->jpegqual = 85;
+	dev->type = id->driver_info;
+	gspca_dev->cam.ctrls = dev->ctrls;
+	dev->quality = QUALITY_DEF;
+	dev->ctrls[LIGHTFREQ].def = V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
+	dev->ctrls[RED].def = RED_BALANCE_DEF;
+	dev->ctrls[GREEN].def = GREEN_BALANCE_DEF;
+	dev->ctrls[BLUE].def = BLUE_BALANCE_DEF;
 	PDEBUG(D_PROBE,
 		"JEILINJ camera detected"
 		" (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
 	cam->cam_mode = jlj_mode;
-	cam->nmodes = 1;
+	cam->nmodes = ARRAY_SIZE(jlj_mode);
 	cam->bulk = 1;
-	/* We don't use the buffer gspca allocates so make it small. */
-	cam->bulk_size = 32;
-	INIT_WORK(&dev->work_struct, jlj_dostream);
+	cam->bulk_nurbs = 1;
+	cam->bulk_size = JEILINJ_MAX_TRANSFER;
 	return 0;
 }
 
-/* called on streamoff with alt==0 and on disconnect */
-/* the usb_lock is held at entry - restore on exit */
-static void sd_stop0(struct gspca_dev *gspca_dev)
+static void sd_stopN(struct gspca_dev *gspca_dev)
 {
-	struct sd *dev = (struct sd *) 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++;
 
-	/* wait for the work queue to terminate */
-	mutex_unlock(&gspca_dev->usb_lock);
-	/* This waits for jlj_dostream to finish */
-	destroy_workqueue(dev->work_thread);
-	dev->work_thread = NULL;
-	mutex_lock(&gspca_dev->usb_lock);
+		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 0;
+	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;
-	int ret;
 
 	/* 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 320x240");
-	ret = jlj_start(gspca_dev);
-	if (ret < 0) {
-		PDEBUG(D_ERR, "Start streaming command failed");
-		return ret;
-	}
-	/* Start the workqueue function to do the streaming */
-	dev->work_thread = create_singlethread_workqueue(MODULE_NAME);
-	queue_work(dev->work_thread, &dev->work_struct);
-
-	return 0;
+	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)},
+	{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_querymenu(struct gspca_dev *gspca_dev,
+			struct v4l2_querymenu *menu)
+{
+	switch (menu->id) {
+	case V4L2_CID_POWER_LINE_FREQUENCY:
+		switch (menu->index) {
+		case 0:	/* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
+			strcpy((char *) menu->name, "disable");
+			return 0;
+		case 1:	/* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
+			strcpy((char *) menu->name, "50 Hz");
+			return 0;
+		case 2:	/* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
+			strcpy((char *) menu->name, "60 Hz");
+			return 0;
+		}
+		break;
+	}
+	return -EINVAL;
+}
+
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+			struct v4l2_jpegcompression *jcomp)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (jcomp->quality < QUALITY_MIN)
+		sd->quality = QUALITY_MIN;
+	else if (jcomp->quality > QUALITY_MAX)
+		sd->quality = QUALITY_MAX;
+	else
+		sd->quality = jcomp->quality;
+	if (gspca_dev->streaming) {
+		jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+		setcamquality(gspca_dev);
+	}
+	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 = sd->quality;
+	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+			| V4L2_JPEG_MARKER_DQT;
+	return 0;
+}
+
+
 /* sub-driver description */
-static const struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc_sakar_57379 = {
 	.name   = MODULE_NAME,
 	.config = sd_config,
 	.init   = sd_init,
 	.start  = sd_start,
-	.stop0  = sd_stop0,
+	.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,
+	.ctrls = sd_ctrls,
+	.nctrls = ARRAY_SIZE(sd_ctrls),
+	.querymenu = sd_querymenu,
+	.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 -- */
@@ -333,7 +570,7 @@ static int sd_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
 	return gspca_dev_probe(intf, id,
-			&sd_desc,
+			sd_desc[id->driver_info],
 			sizeof(struct sd),
 			THIS_MODULE);
 }