diff options
Diffstat (limited to 'drivers/media/usb/uvc/uvc_driver.c')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 65 |
1 files changed, 52 insertions, 13 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 66ee168ddc7e..99883550375e 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -497,6 +497,22 @@ static int uvc_parse_format(struct uvc_device *dev, } } + /* Some devices report bpp that doesn't match the format. */ + if (dev->quirks & UVC_QUIRK_FORCE_BPP) { + const struct v4l2_format_info *info = + v4l2_format_info(format->fcc); + + if (info) { + unsigned int div = info->hdiv * info->vdiv; + + n = info->bpp[0] * div; + for (i = 1; i < info->comp_planes; i++) + n += info->bpp[i]; + + format->bpp = DIV_ROUND_UP(8 * n, div); + } + } + if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { ftype = UVC_VS_FRAME_UNCOMPRESSED; } else { @@ -1493,6 +1509,11 @@ static int uvc_scan_chain_forward(struct uvc_video_chain *chain, break; if (forward == prev) continue; + if (forward->chain.next || forward->chain.prev) { + uvc_trace(UVC_TRACE_DESCR, "Found reference to " + "entity %d already in chain.\n", forward->id); + return -EINVAL; + } switch (UVC_ENTITY_TYPE(forward)) { case UVC_VC_EXTENSION_UNIT: @@ -1574,6 +1595,13 @@ static int uvc_scan_chain_backward(struct uvc_video_chain *chain, return -1; } + if (term->chain.next || term->chain.prev) { + uvc_trace(UVC_TRACE_DESCR, "Found reference to " + "entity %d already in chain.\n", + term->id); + return -EINVAL; + } + if (uvc_trace_param & UVC_TRACE_PROBE) printk(KERN_CONT " %d", term->id); @@ -2151,6 +2179,20 @@ static int uvc_probe(struct usb_interface *intf, sizeof(dev->name) - len); } + /* Initialize the media device. */ +#ifdef CONFIG_MEDIA_CONTROLLER + dev->mdev.dev = &intf->dev; + strscpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); + if (udev->serial) + strscpy(dev->mdev.serial, udev->serial, + sizeof(dev->mdev.serial)); + usb_make_path(udev, dev->mdev.bus_info, sizeof(dev->mdev.bus_info)); + dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); + media_device_init(&dev->mdev); + + dev->vdev.mdev = &dev->mdev; +#endif + /* Parse the Video Class control descriptor. */ if (uvc_parse_control(dev) < 0) { uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " @@ -2171,19 +2213,7 @@ static int uvc_probe(struct usb_interface *intf, "linux-uvc-devel mailing list.\n"); } - /* Initialize the media device and register the V4L2 device. */ -#ifdef CONFIG_MEDIA_CONTROLLER - dev->mdev.dev = &intf->dev; - strscpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); - if (udev->serial) - strscpy(dev->mdev.serial, udev->serial, - sizeof(dev->mdev.serial)); - usb_make_path(udev, dev->mdev.bus_info, sizeof(dev->mdev.bus_info)); - dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); - media_device_init(&dev->mdev); - - dev->vdev.mdev = &dev->mdev; -#endif + /* Register the V4L2 device. */ if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) goto error; @@ -2860,6 +2890,15 @@ static const struct usb_device_id uvc_ids[] = { .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, .driver_info = (kernel_ulong_t)&uvc_quirk_force_y8 }, + /* GEO Semiconductor GC6500 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x29fe, + .idProduct = 0x4d53, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_FORCE_BPP) }, /* Intel RealSense D4M */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, |