#include <linux/vmalloc.h>
#include <linux/wait.h>
#include <asm/atomic.h>
+#include <asm/unaligned.h>
#include <media/v4l2-common.h>
#define DRIVER_VERSION "v0.1.0"
#endif
+unsigned int uvc_no_drop_param;
static unsigned int uvc_quirks_param;
unsigned int uvc_trace_param;
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];
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
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 = le16_to_cpup((__le16 *)&buffer[5]);
- frame->wHeight = le16_to_cpup((__le16 *)&buffer[7]);
- frame->dwMinBitRate = le32_to_cpup((__le32 *)&buffer[9]);
- frame->dwMaxBitRate = le32_to_cpup((__le32 *)&buffer[13]);
+ frame->wWidth = get_unaligned_le16(&buffer[5]);
+ frame->wHeight = get_unaligned_le16(&buffer[7]);
+ frame->dwMinBitRate = get_unaligned_le32(&buffer[9]);
+ frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]);
if (ftype != VS_FRAME_FRAME_BASED) {
frame->dwMaxVideoFrameBufferSize =
- le32_to_cpup((__le32 *)&buffer[17]);
+ get_unaligned_le32(&buffer[17]);
frame->dwDefaultFrameInterval =
- le32_to_cpup((__le32 *)&buffer[21]);
+ get_unaligned_le32(&buffer[21]);
frame->bFrameIntervalType = buffer[25];
} else {
frame->dwMaxVideoFrameBufferSize = 0;
frame->dwDefaultFrameInterval =
- le32_to_cpup((__le32 *)&buffer[17]);
+ get_unaligned_le32(&buffer[17]);
frame->bFrameIntervalType = buffer[21];
}
frame->dwFrameInterval = *intervals;
* some other divisions by zero which could happen.
*/
for (i = 0; i < n; ++i) {
- interval = le32_to_cpup((__le32 *)&buffer[26+4*i]);
+ interval = get_unaligned_le32(&buffer[26+4*i]);
*(*intervals)++ = interval ? interval : 1;
}
10000000/frame->dwDefaultFrameInterval,
(100000000/frame->dwDefaultFrameInterval)%10);
- format->nframes++;
buflen -= buffer[0];
buffer += buffer[0];
}
unit->type = VC_EXTENSION_UNIT;
memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
unit->extension.bNumControls = buffer[20];
- unit->extension.bNrInPins =
- le16_to_cpup((__le16 *)&buffer[21]);
+ unit->extension.bNrInPins = get_unaligned_le16(&buffer[21]);
unit->extension.baSourceID = (__u8 *)unit + sizeof *unit;
memcpy(unit->extension.baSourceID, &buffer[22], p);
unit->extension.bControlSize = buffer[22+p];
return -EINVAL;
}
- dev->uvc_version = le16_to_cpup((__le16 *)&buffer[3]);
- dev->clock_frequency = le32_to_cpup((__le32 *)&buffer[7]);
+ dev->uvc_version = get_unaligned_le16(&buffer[3]);
+ dev->clock_frequency = get_unaligned_le32(&buffer[7]);
/* Parse all USB Video Streaming interfaces. */
for (i = 0; i < n; ++i) {
/* Make sure the terminal type MSB is not null, otherwise it
* could be confused with a unit.
*/
- type = le16_to_cpup((__le16 *)&buffer[4]);
+ type = get_unaligned_le16(&buffer[4]);
if ((type & 0xff00) == 0) {
uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
"interface %d INPUT_TERMINAL %d has invalid "
term->camera.bControlSize = n;
term->camera.bmControls = (__u8 *)term + sizeof *term;
term->camera.wObjectiveFocalLengthMin =
- le16_to_cpup((__le16 *)&buffer[8]);
+ get_unaligned_le16(&buffer[8]);
term->camera.wObjectiveFocalLengthMax =
- le16_to_cpup((__le16 *)&buffer[10]);
+ get_unaligned_le16(&buffer[10]);
term->camera.wOcularFocalLength =
- le16_to_cpup((__le16 *)&buffer[12]);
+ get_unaligned_le16(&buffer[12]);
memcpy(term->camera.bmControls, &buffer[15], n);
} else if (UVC_ENTITY_TYPE(term) == ITT_MEDIA_TRANSPORT_INPUT) {
term->media.bControlSize = n;
/* Make sure the terminal type MSB is not null, otherwise it
* could be confused with a unit.
*/
- type = le16_to_cpup((__le16 *)&buffer[4]);
+ type = get_unaligned_le16(&buffer[4]);
if ((type & 0xff00) == 0) {
uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
"interface %d OUTPUT_TERMINAL %d has invalid "
unit->type = buffer[2];
unit->processing.bSourceID = buffer[4];
unit->processing.wMaxMultiplier =
- le16_to_cpup((__le16 *)&buffer[5]);
+ get_unaligned_le16(&buffer[5]);
unit->processing.bControlSize = buffer[7];
unit->processing.bmControls = (__u8 *)unit + sizeof *unit;
memcpy(unit->processing.bmControls, &buffer[8], n);
unit->type = buffer[2];
memcpy(unit->extension.guidExtensionCode, &buffer[4], 16);
unit->extension.bNumControls = buffer[20];
- unit->extension.bNrInPins =
- le16_to_cpup((__le16 *)&buffer[21]);
+ unit->extension.bNrInPins = get_unaligned_le16(&buffer[21]);
unit->extension.baSourceID = (__u8 *)unit + sizeof *unit;
memcpy(unit->extension.baSourceID, &buffer[22], p);
unit->extension.bControlSize = buffer[22+p];
buffer += buffer[0];
}
- /* Check if the optional status endpoint is present. */
- if (alts->desc.bNumEndpoints == 1) {
+ /* Check if the optional status endpoint is present. Built-in iSight
+ * webcams have an interrupt endpoint but spit proprietary data that
+ * don't conform to the UVC status endpoint messages. Don't try to
+ * handle the interrupt endpoint for those cameras.
+ */
+ if (alts->desc.bNumEndpoints == 1 &&
+ !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) {
struct usb_host_endpoint *ep = &alts->endpoint[0];
struct usb_endpoint_descriptor *desc = &ep->desc;
* though they are compliant.
*/
static struct usb_device_id uvc_ids[] = {
- /* ALi M5606 (Clevo M540SR) */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x0402,
- .idProduct = 0x5606,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Creative Live! Optia */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x041e,
- .idProduct = 0x4057,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
/* Microsoft Lifecam NX-6000 */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_STREAM_NO_FID },
- /* Silicon Motion SM371 */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x090c,
- .idProduct = 0xb371,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
/* MT6227 */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_STREAM_NO_FID },
+ /* Syntek (Samsung Q310) */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x174f,
+ .idProduct = 0x5931,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_STREAM_NO_FID },
/* Asus F9SG */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_STREAM_NO_FID },
+ /* Lenovo Thinkpad SL500 */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x17ef,
+ .idProduct = 0x480b,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_STREAM_NO_FID },
/* Ecamm Pico iMage */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_MINMAX
- | UVC_QUIRK_IGNORE_SELECTOR_UNIT},
- /* Acer OEM Webcam - Unknown vendor */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0100,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Packard Bell OEM Webcam - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0101,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Acer Crystal Eye webcam - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0102,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Compaq Presario B1200 - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0104,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Acer Travelmate 7720 - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0105,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Medion Akoya Mini E1210 - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0141,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Acer OrbiCam - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0200,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Fujitsu Amilo SI2636 - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0202,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Advent 4211 - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0203,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0300,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
- /* Clevo M570TU - Bison Electronics */
- { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
- | USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x0303,
- .bInterfaceClass = USB_CLASS_VIDEO,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 0,
- .driver_info = UVC_QUIRK_PROBE_MINMAX },
+ | UVC_QUIRK_IGNORE_SELECTOR_UNIT
+ | UVC_QUIRK_PRUNE_CONTROLS },
/* Generic USB Video Class */
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
{}
module_init(uvc_init);
module_exit(uvc_cleanup);
+module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames");
module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(quirks, "Forced device quirks");
module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR);
git.openpandora.org / pandora-kernel.git / blobdiff