--- zzzz-none-000/linux-3.10.107/drivers/media/usb/gspca/kinect.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/media/usb/gspca/kinect.c	2021-02-04 17:41:59.000000000 +0000
@@ -36,6 +36,8 @@
 MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
 MODULE_LICENSE("GPL");
 
+static bool depth_mode;
+
 struct pkt_hdr {
 	uint8_t magic[2];
 	uint8_t pad;
@@ -49,9 +51,9 @@
 
 struct cam_hdr {
 	uint8_t magic[2];
-	uint16_t len;
-	uint16_t cmd;
-	uint16_t tag;
+	__le16 len;
+	__le16 cmd;
+	__le16 tag;
 };
 
 /* specific webcam descriptor */
@@ -73,6 +75,14 @@
 
 #define FPS_HIGH       0x0100
 
+static const struct v4l2_pix_format depth_camera_mode[] = {
+	{640, 480, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
+	 .bytesperline = 640 * 10 / 8,
+	 .sizeimage =  640 * 480 * 10 / 8,
+	 .colorspace = V4L2_COLORSPACE_SRGB,
+	 .priv = MODE_640x488 | FORMAT_Y10B},
+};
+
 static const struct v4l2_pix_format video_camera_mode[] = {
 	{640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
 	 .bytesperline = 640,
@@ -155,10 +165,11 @@
 	do {
 		actual_len = kinect_read(udev, ibuf, 0x200);
 	} while (actual_len == 0);
-	PDEBUG(D_USBO, "Control reply: %d", res);
+	PDEBUG(D_USBO, "Control reply: %d", actual_len);
 	if (actual_len < sizeof(*rhdr)) {
-		pr_err("send_cmd: Input control transfer failed (%d)\n", res);
-		return res;
+		pr_err("send_cmd: Input control transfer failed (%d)\n",
+		       actual_len);
+		return actual_len < 0 ? actual_len : -EREMOTEIO;
 	}
 	actual_len -= sizeof(*rhdr);
 
@@ -177,9 +188,9 @@
 		       rhdr->tag, chdr->tag);
 		return -1;
 	}
-	if (cpu_to_le16(rhdr->len) != (actual_len/2)) {
+	if (le16_to_cpu(rhdr->len) != (actual_len/2)) {
 		pr_err("send_cmd: Bad len %04x != %04x\n",
-		       cpu_to_le16(rhdr->len), (int)(actual_len/2));
+		       le16_to_cpu(rhdr->len), (int)(actual_len/2));
 		return -1;
 	}
 
@@ -200,7 +211,7 @@
 			uint16_t data)
 {
 	uint16_t reply[2];
-	uint16_t cmd[2];
+	__le16 cmd[2];
 	int res;
 
 	cmd[0] = cpu_to_le16(reg);
@@ -218,7 +229,7 @@
 }
 
 /* this function is called at probe time */
-static int sd_config(struct gspca_dev *gspca_dev,
+static int sd_config_video(struct gspca_dev *gspca_dev,
 		     const struct usb_device_id *id)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -226,8 +237,6 @@
 
 	sd->cam_tag = 0;
 
-	/* Only video stream is supported for now,
-	 * which has stream flag = 0x80 */
 	sd->stream_flag = 0x80;
 
 	cam = &gspca_dev->cam;
@@ -235,6 +244,8 @@
 	cam->cam_mode = video_camera_mode;
 	cam->nmodes = ARRAY_SIZE(video_camera_mode);
 
+	gspca_dev->xfer_ep = 0x81;
+
 #if 0
 	/* Setting those values is not needed for video stream */
 	cam->npkt = 15;
@@ -244,6 +255,26 @@
 	return 0;
 }
 
+static int sd_config_depth(struct gspca_dev *gspca_dev,
+		     const struct usb_device_id *id)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct cam *cam;
+
+	sd->cam_tag = 0;
+
+	sd->stream_flag = 0x70;
+
+	cam = &gspca_dev->cam;
+
+	cam->cam_mode = depth_camera_mode;
+	cam->nmodes = ARRAY_SIZE(depth_camera_mode);
+
+	gspca_dev->xfer_ep = 0x82;
+
+	return 0;
+}
+
 /* this function is called at probe and resume time */
 static int sd_init(struct gspca_dev *gspca_dev)
 {
@@ -252,7 +283,7 @@
 	return 0;
 }
 
-static int sd_start(struct gspca_dev *gspca_dev)
+static int sd_start_video(struct gspca_dev *gspca_dev)
 {
 	int mode;
 	uint8_t fmt_reg, fmt_val;
@@ -324,12 +355,39 @@
 	return 0;
 }
 
-static void sd_stopN(struct gspca_dev *gspca_dev)
+static int sd_start_depth(struct gspca_dev *gspca_dev)
+{
+	/* turn off IR-reset function */
+	write_register(gspca_dev, 0x105, 0x00);
+
+	/* reset depth stream */
+	write_register(gspca_dev, 0x06, 0x00);
+	/* Depth Stream Format 0x03: 11 bit stream | 0x02: 10 bit */
+	write_register(gspca_dev, 0x12, 0x02);
+	/* Depth Stream Resolution 1: standard (640x480) */
+	write_register(gspca_dev, 0x13, 0x01);
+	/* Depth Framerate / 0x1e (30): 30 fps */
+	write_register(gspca_dev, 0x14, 0x1e);
+	/* Depth Stream Control  / 2: Open Depth Stream */
+	write_register(gspca_dev, 0x06, 0x02);
+	/* disable depth hflip / LSB = 0: Smoothing Disabled */
+	write_register(gspca_dev, 0x17, 0x00);
+
+	return 0;
+}
+
+static void sd_stopN_video(struct gspca_dev *gspca_dev)
 {
 	/* reset video stream */
 	write_register(gspca_dev, 0x05, 0x00);
 }
 
+static void sd_stopN_depth(struct gspca_dev *gspca_dev)
+{
+	/* reset depth stream */
+	write_register(gspca_dev, 0x06, 0x00);
+}
+
 static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -365,12 +423,24 @@
 }
 
 /* sub-driver description */
-static const struct sd_desc sd_desc = {
+static const struct sd_desc sd_desc_video = {
 	.name      = MODULE_NAME,
-	.config    = sd_config,
+	.config    = sd_config_video,
 	.init      = sd_init,
-	.start     = sd_start,
-	.stopN     = sd_stopN,
+	.start     = sd_start_video,
+	.stopN     = sd_stopN_video,
+	.pkt_scan  = sd_pkt_scan,
+	/*
+	.get_streamparm = sd_get_streamparm,
+	.set_streamparm = sd_set_streamparm,
+	*/
+};
+static const struct sd_desc sd_desc_depth = {
+	.name      = MODULE_NAME,
+	.config    = sd_config_depth,
+	.init      = sd_init,
+	.start     = sd_start_depth,
+	.stopN     = sd_stopN_depth,
 	.pkt_scan  = sd_pkt_scan,
 	/*
 	.get_streamparm = sd_get_streamparm,
@@ -390,8 +460,12 @@
 /* -- device connect -- */
 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
-	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
-				THIS_MODULE);
+	if (depth_mode)
+		return gspca_dev_probe(intf, id, &sd_desc_depth,
+				       sizeof(struct sd), THIS_MODULE);
+	else
+		return gspca_dev_probe(intf, id, &sd_desc_video,
+				       sizeof(struct sd), THIS_MODULE);
 }
 
 static struct usb_driver sd_driver = {
@@ -407,3 +481,6 @@
 };
 
 module_usb_driver(sd_driver);
+
+module_param(depth_mode, bool, 0644);
+MODULE_PARM_DESC(depth_mode, "0=video 1=depth");