diff options
| author | Philipp Zabel <philipp.zabel@gmail.com> | 2014-08-07 00:50:49 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-25 13:31:08 +0300 |
| commit | e1b78a335996031fea81d3dcbea9724ed3dd4a80 (patch) | |
| tree | 82be03285964934c8562c96b66d1cdcb624a41b8 /drivers/media/usb/uvc | |
| parent | 4daee77976718b3e8136e37872d7ad5c36754e25 (diff) | |
| download | linux-e1b78a335996031fea81d3dcbea9724ed3dd4a80.tar.xz | |
[media] uvcvideo: Add quirk to force the Oculus DK2 IR tracker to grayscale
This patch adds a quirk to force Y8 pixel format even if the camera reports
half-width YUYV.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/uvc')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 27 | ||||
| -rw-r--r-- | drivers/media/usb/uvc/uvcvideo.h | 1 |
2 files changed, 27 insertions, 1 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 7c8322d4fc63..b7e111df5c3c 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -331,6 +331,7 @@ static int uvc_parse_format(struct uvc_device *dev, struct uvc_format_desc *fmtdesc; struct uvc_frame *frame; const unsigned char *start = buffer; + unsigned int width_multiplier = 1; unsigned int interval; unsigned int i, n; __u8 ftype; @@ -366,6 +367,20 @@ static int uvc_parse_format(struct uvc_device *dev, } format->bpp = buffer[21]; + + /* Some devices report a format that doesn't match what they + * really send. + */ + if (dev->quirks & UVC_QUIRK_FORCE_Y8) { + if (format->fcc == V4L2_PIX_FMT_YUYV) { + strlcpy(format->name, "Greyscale 8-bit (Y8 )", + sizeof(format->name)); + format->fcc = V4L2_PIX_FMT_GREY; + format->bpp = 8; + width_multiplier = 2; + } + } + if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { ftype = UVC_VS_FRAME_UNCOMPRESSED; } else { @@ -474,7 +489,8 @@ static int uvc_parse_format(struct uvc_device *dev, frame->bFrameIndex = buffer[3]; frame->bmCapabilities = buffer[4]; - frame->wWidth = get_unaligned_le16(&buffer[5]); + frame->wWidth = get_unaligned_le16(&buffer[5]) + * width_multiplier; frame->wHeight = get_unaligned_le16(&buffer[7]); frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); @@ -2504,6 +2520,15 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_PROBE_MINMAX | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, + /* Oculus VR Positional Tracker DK2 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x2833, + .idProduct = 0x0201, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_FORCE_Y8 }, /* Generic USB Video Class */ { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, {} diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 864ada740360..2600c9667a64 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -148,6 +148,7 @@ #define UVC_QUIRK_PROBE_DEF 0x00000100 #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200 #define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400 +#define UVC_QUIRK_FORCE_Y8 0x00000800 /* Format flags */ #define UVC_FMT_FLAG_COMPRESSED 0x00000001 |