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path: root/drivers/media/video/uvc/uvc_driver.c
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Diffstat (limited to 'drivers/media/video/uvc/uvc_driver.c')
-rw-r--r--drivers/media/video/uvc/uvc_driver.c68
1 files changed, 33 insertions, 35 deletions
diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c
index 507dc85646b2..89927b7aec28 100644
--- a/drivers/media/video/uvc/uvc_driver.c
+++ b/drivers/media/video/uvc/uvc_driver.c
@@ -289,10 +289,8 @@ static int uvc_parse_format(struct uvc_device *dev,
struct uvc_format_desc *fmtdesc;
struct uvc_frame *frame;
const unsigned char *start = buffer;
- unsigned char *_buffer;
unsigned int interval;
unsigned int i, n;
- int _buflen;
__u8 ftype;
format->type = buffer[2];
@@ -303,7 +301,7 @@ static int uvc_parse_format(struct uvc_device *dev,
case VS_FORMAT_FRAME_BASED:
n = buffer[2] == VS_FORMAT_UNCOMPRESSED ? 27 : 28;
if (buflen < n) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d FORMAT error\n",
dev->udev->devnum,
alts->desc.bInterfaceNumber);
@@ -338,7 +336,7 @@ static int uvc_parse_format(struct uvc_device *dev,
case VS_FORMAT_MJPEG:
if (buflen < 11) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d FORMAT error\n",
dev->udev->devnum,
alts->desc.bInterfaceNumber);
@@ -354,7 +352,7 @@ static int uvc_parse_format(struct uvc_device *dev,
case VS_FORMAT_DV:
if (buflen < 9) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d FORMAT error\n",
dev->udev->devnum,
alts->desc.bInterfaceNumber);
@@ -372,7 +370,7 @@ static int uvc_parse_format(struct uvc_device *dev,
strlcpy(format->name, "HD-DV", sizeof format->name);
break;
default:
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d: unknown DV format %u\n",
dev->udev->devnum,
alts->desc.bInterfaceNumber, buffer[8]);
@@ -401,7 +399,7 @@ static int uvc_parse_format(struct uvc_device *dev,
case VS_FORMAT_STREAM_BASED:
/* Not supported yet. */
default:
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d unsupported format %u\n",
dev->udev->devnum, alts->desc.bInterfaceNumber,
buffer[2]);
@@ -413,20 +411,11 @@ static int uvc_parse_format(struct uvc_device *dev,
buflen -= buffer[0];
buffer += buffer[0];
- /* Count the number of frame descriptors to test the bFrameIndex
- * field when parsing the descriptors. We can't rely on the
- * bNumFrameDescriptors field as some cameras don't initialize it
- * properly.
- */
- for (_buflen = buflen, _buffer = buffer;
- _buflen > 2 && _buffer[2] == ftype;
- _buflen -= _buffer[0], _buffer += _buffer[0])
- format->nframes++;
-
/* Parse the frame descriptors. Only uncompressed, MJPEG and frame
* based formats have frame descriptors.
*/
while (buflen > 2 && buffer[2] == ftype) {
+ frame = &format->frame[format->nframes];
if (ftype != VS_FRAME_FRAME_BASED)
n = buflen > 25 ? buffer[25] : 0;
else
@@ -435,22 +424,12 @@ static int uvc_parse_format(struct uvc_device *dev,
n = n ? n : 3;
if (buflen < 26 + 4*n) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d FRAME error\n", dev->udev->devnum,
alts->desc.bInterfaceNumber);
return -EINVAL;
}
- if (buffer[3] - 1 >= format->nframes) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
- "interface %d frame index %u out of range\n",
- dev->udev->devnum, alts->desc.bInterfaceNumber,
- buffer[3]);
- return -EINVAL;
- }
-
- frame = &format->frame[buffer[3] - 1];
-
frame->bFrameIndex = buffer[3];
frame->bmCapabilities = buffer[4];
frame->wWidth = get_unaligned_le16(&buffer[5]);
@@ -507,6 +486,7 @@ static int uvc_parse_format(struct uvc_device *dev,
10000000/frame->dwDefaultFrameInterval,
(100000000/frame->dwDefaultFrameInterval)%10);
+ format->nframes++;
buflen -= buffer[0];
buffer += buffer[0];
}
@@ -518,7 +498,7 @@ static int uvc_parse_format(struct uvc_device *dev,
if (buflen > 2 && buffer[2] == VS_COLORFORMAT) {
if (buflen < 6) {
- uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
+ uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming "
"interface %d COLORFORMAT error\n",
dev->udev->devnum,
alts->desc.bInterfaceNumber);
@@ -664,7 +644,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
_buflen = buflen;
/* Count the format and frame descriptors. */
- while (_buflen > 2) {
+ while (_buflen > 2 && _buffer[1] == CS_INTERFACE) {
switch (_buffer[2]) {
case VS_FORMAT_UNCOMPRESSED:
case VS_FORMAT_MJPEG:
@@ -729,7 +709,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
streaming->nformats = nformats;
/* Parse the format descriptors. */
- while (buflen > 2) {
+ while (buflen > 2 && buffer[1] == CS_INTERFACE) {
switch (buffer[2]) {
case VS_FORMAT_UNCOMPRESSED:
case VS_FORMAT_MJPEG:
@@ -1316,7 +1296,7 @@ static int uvc_scan_chain_forward(struct uvc_video_device *video,
continue;
if (forward->extension.bNrInPins != 1) {
- uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has"
+ uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has "
"more than 1 input pin.\n", entity->id);
return -1;
}
@@ -1614,6 +1594,7 @@ static int uvc_probe(struct usb_interface *intf,
INIT_LIST_HEAD(&dev->entities);
INIT_LIST_HEAD(&dev->streaming);
kref_init(&dev->kref);
+ atomic_set(&dev->users, 0);
dev->udev = usb_get_dev(udev);
dev->intf = usb_get_intf(intf);
@@ -1927,7 +1908,7 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_STREAM_NO_FID },
- /* Lenovo Thinkpad SL500 */
+ /* Lenovo Thinkpad SL400/SL500 */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.idVendor = 0x17ef,
@@ -1936,6 +1917,15 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_STREAM_NO_FID },
+ /* Aveo Technology USB 2.0 Camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x1871,
+ .idProduct = 0x0306,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS },
/* Ecamm Pico iMage */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
@@ -1945,6 +1935,15 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS },
+ /* FSC WebCam V30S */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x18ec,
+ .idProduct = 0x3288,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_MINMAX },
/* Bodelin ProScopeHR */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_DEV_HI
@@ -1965,8 +1964,7 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_MINMAX
- | UVC_QUIRK_IGNORE_SELECTOR_UNIT
- | UVC_QUIRK_PRUNE_CONTROLS },
+ | UVC_QUIRK_IGNORE_SELECTOR_UNIT },
/* Generic USB Video Class */
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
{}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-25 17:53:26 +0000