Add IR stream support.

The IR stream comes in a 10 bpp packed array, so a Y10B format is used
for that.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>

diff --git a/kinect.c b/kinect.c
index b5077ca..883db90 100644 (file)
--- a/kinect.c
+++ b/kinect.c
@@ -65,10 +65,12 @@ static const struct ctrl sd_ctrls[] = {
 };
 
 #define MODE_640x480   0x0001
-#define MODE_1280x1024 0x0002
+#define MODE_640x488   0x0002
+#define MODE_1280x1024 0x0004
 
 #define FORMAT_BAYER   0x0010
 #define FORMAT_UYVY    0x0020
+#define FORMAT_Y10B    0x0040
 
 #define FPS_HIGH       0x0100
 
@@ -88,6 +90,16 @@ static const struct v4l2_pix_format video_camera_mode[] = {
         .sizeimage = 1280 * 1024,
         .colorspace = V4L2_COLORSPACE_SRGB,
         .priv = MODE_1280x1024 | FORMAT_BAYER},
+       {640, 488, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
+        .bytesperline = 640 * 10 / 8,
+        .sizeimage =  640 * 488 * 10 / 8,
+        .colorspace = V4L2_COLORSPACE_SRGB,
+        .priv = MODE_640x488 | FORMAT_Y10B | FPS_HIGH},
+       {1280, 1024, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
+        .bytesperline = 1280 * 10 / 8,
+        .sizeimage =  1280 * 1024 * 10 / 8,
+        .colorspace = V4L2_COLORSPACE_SRGB,
+        .priv = MODE_1280x1024 | FORMAT_Y10B},
 };
 
 static int kinect_write(struct usb_device *udev, uint8_t *data, uint16_t wLength)
@@ -234,12 +246,21 @@ static int sd_start(struct gspca_dev *gspca_dev)
        uint8_t fmt_reg, fmt_val;
        uint8_t res_reg, res_val;
        uint8_t fps_reg, fps_val;
+       uint8_t mode_val;
 
        mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
 
-       fmt_reg = 0x0c;
-       res_reg = 0x0d;
-       fps_reg = 0x0e;
+       if (mode & FORMAT_Y10B) {
+               fmt_reg = 0x19;
+               res_reg = 0x1a;
+               fps_reg = 0x1b;
+               mode_val = 0x03;
+       } else {
+               fmt_reg = 0x0c;
+               res_reg = 0x0d;
+               fps_reg = 0x0e;
+               mode_val = 0x01;
+       }
 
        /* format */
        if (mode & FORMAT_UYVY)
@@ -257,15 +278,33 @@ static int sd_start(struct gspca_dev *gspca_dev)
        else
                fps_val = 0x0f;
 
+
+       /* turn off IR-reset function */
+       write_register(gspca_dev, 0x105, 0x00);
+
        /* Reset video stream */
        write_register(gspca_dev, 0x05, 0x00);
 
+       /* Due to some ridiculous condition in the firmware, we have to start
+        * and stop the depth stream before the camera will hand us 1280x1024
+        * IR.  This is a stupid workaround, but we've yet to find a better
+        * solution.
+        *
+        * Thanks to Drew Fisher for figuring this out.
+        */
+       if (mode & (FORMAT_Y10B | MODE_1280x1024)) {
+               write_register(gspca_dev, 0x13, 0x01);
+               write_register(gspca_dev, 0x14, 0x1e);
+               write_register(gspca_dev, 0x06, 0x02);
+               write_register(gspca_dev, 0x06, 0x00);
+       }
+
        write_register(gspca_dev, fmt_reg, fmt_val);
        write_register(gspca_dev, res_reg, res_val);
        write_register(gspca_dev, fps_reg, fps_val);
 
        /* Start video stream */
-       write_register(gspca_dev, 0x05, 0x01);
+       write_register(gspca_dev, 0x05, mode_val);
 
        /* disable Hflip */
        write_register(gspca_dev, 0x47, 0x00);