[media] gspca_kinect: add support for the depth stream
Add support for the depth stream at 10bpp, for now use a 'depth_mode' command line parameter to switch between video and depth mode. Signed-off-by: Alexander Sosna <alexander@xxor.de> Signed-off-by: Antonio Ospite <ao2@ao2.it> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -36,6 +36,8 @@ MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
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MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
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MODULE_LICENSE("GPL");
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static bool depth_mode;
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struct pkt_hdr {
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uint8_t magic[2];
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uint8_t pad;
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@ -73,6 +75,14 @@ struct sd {
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#define FPS_HIGH 0x0100
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static const struct v4l2_pix_format depth_camera_mode[] = {
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{640, 480, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
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.bytesperline = 640 * 10 / 8,
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.sizeimage = 640 * 480 * 10 / 8,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = MODE_640x488 | FORMAT_Y10B},
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};
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static const struct v4l2_pix_format video_camera_mode[] = {
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{640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
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.bytesperline = 640,
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@ -219,7 +229,7 @@ static int write_register(struct gspca_dev *gspca_dev, uint16_t reg,
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}
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/* this function is called at probe time */
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static int sd_config(struct gspca_dev *gspca_dev,
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static int sd_config_video(struct gspca_dev *gspca_dev,
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const struct usb_device_id *id)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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@ -227,8 +237,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
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sd->cam_tag = 0;
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/* Only video stream is supported for now,
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* which has stream flag = 0x80 */
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sd->stream_flag = 0x80;
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cam = &gspca_dev->cam;
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@ -236,6 +244,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
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cam->cam_mode = video_camera_mode;
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cam->nmodes = ARRAY_SIZE(video_camera_mode);
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gspca_dev->xfer_ep = 0x81;
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#if 0
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/* Setting those values is not needed for video stream */
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cam->npkt = 15;
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@ -245,6 +255,26 @@ static int sd_config(struct gspca_dev *gspca_dev,
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return 0;
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}
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static int sd_config_depth(struct gspca_dev *gspca_dev,
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const struct usb_device_id *id)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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struct cam *cam;
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sd->cam_tag = 0;
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sd->stream_flag = 0x70;
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cam = &gspca_dev->cam;
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cam->cam_mode = depth_camera_mode;
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cam->nmodes = ARRAY_SIZE(depth_camera_mode);
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gspca_dev->xfer_ep = 0x82;
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return 0;
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}
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/* this function is called at probe and resume time */
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static int sd_init(struct gspca_dev *gspca_dev)
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{
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@ -253,7 +283,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
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return 0;
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}
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static int sd_start(struct gspca_dev *gspca_dev)
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static int sd_start_video(struct gspca_dev *gspca_dev)
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{
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int mode;
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uint8_t fmt_reg, fmt_val;
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@ -325,12 +355,39 @@ static int sd_start(struct gspca_dev *gspca_dev)
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return 0;
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}
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static void sd_stopN(struct gspca_dev *gspca_dev)
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static int sd_start_depth(struct gspca_dev *gspca_dev)
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{
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/* turn off IR-reset function */
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write_register(gspca_dev, 0x105, 0x00);
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/* reset depth stream */
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write_register(gspca_dev, 0x06, 0x00);
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/* Depth Stream Format 0x03: 11 bit stream | 0x02: 10 bit */
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write_register(gspca_dev, 0x12, 0x02);
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/* Depth Stream Resolution 1: standard (640x480) */
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write_register(gspca_dev, 0x13, 0x01);
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/* Depth Framerate / 0x1e (30): 30 fps */
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write_register(gspca_dev, 0x14, 0x1e);
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/* Depth Stream Control / 2: Open Depth Stream */
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write_register(gspca_dev, 0x06, 0x02);
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/* disable depth hflip / LSB = 0: Smoothing Disabled */
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write_register(gspca_dev, 0x17, 0x00);
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return 0;
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}
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static void sd_stopN_video(struct gspca_dev *gspca_dev)
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{
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/* reset video stream */
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write_register(gspca_dev, 0x05, 0x00);
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}
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static void sd_stopN_depth(struct gspca_dev *gspca_dev)
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{
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/* reset depth stream */
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write_register(gspca_dev, 0x06, 0x00);
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}
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static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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@ -366,12 +423,24 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
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}
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/* sub-driver description */
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static const struct sd_desc sd_desc = {
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static const struct sd_desc sd_desc_video = {
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.name = MODULE_NAME,
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.config = sd_config,
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.config = sd_config_video,
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.init = sd_init,
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.start = sd_start,
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.stopN = sd_stopN,
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.start = sd_start_video,
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.stopN = sd_stopN_video,
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.pkt_scan = sd_pkt_scan,
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/*
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.get_streamparm = sd_get_streamparm,
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.set_streamparm = sd_set_streamparm,
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*/
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};
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static const struct sd_desc sd_desc_depth = {
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.name = MODULE_NAME,
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.config = sd_config_depth,
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.init = sd_init,
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.start = sd_start_depth,
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.stopN = sd_stopN_depth,
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.pkt_scan = sd_pkt_scan,
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/*
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.get_streamparm = sd_get_streamparm,
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@ -391,8 +460,12 @@ MODULE_DEVICE_TABLE(usb, device_table);
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/* -- device connect -- */
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static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
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{
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return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
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THIS_MODULE);
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if (depth_mode)
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return gspca_dev_probe(intf, id, &sd_desc_depth,
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sizeof(struct sd), THIS_MODULE);
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else
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return gspca_dev_probe(intf, id, &sd_desc_video,
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sizeof(struct sd), THIS_MODULE);
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}
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static struct usb_driver sd_driver = {
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@ -408,3 +481,6 @@ static struct usb_driver sd_driver = {
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};
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module_usb_driver(sd_driver);
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module_param(depth_mode, bool, 0644);
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MODULE_PARM_DESC(depth_mode, "0=video 1=depth");
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