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path: root/drivers/media/usb/uvc/uvc_driver.c
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Diffstat (limited to 'drivers/media/usb/uvc/uvc_driver.c')
-rw-r--r--drivers/media/usb/uvc/uvc_driver.c137
1 files changed, 105 insertions, 32 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index d631ce4f9f7b..08fcd2ffa727 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -184,7 +184,7 @@ static void uvc_stream_delete(struct uvc_streaming *stream)
usb_put_intf(stream->intf);
- kfree(stream->format);
+ kfree(stream->formats);
kfree(stream->header.bmaControls);
kfree(stream);
}
@@ -221,7 +221,8 @@ static struct uvc_streaming *uvc_stream_new(struct uvc_device *dev,
static int uvc_parse_format(struct uvc_device *dev,
struct uvc_streaming *streaming, struct uvc_format *format,
- u32 **intervals, unsigned char *buffer, int buflen)
+ struct uvc_frame *frames, u32 **intervals, const unsigned char *buffer,
+ int buflen)
{
struct usb_interface *intf = streaming->intf;
struct usb_host_interface *alts = intf->cur_altsetting;
@@ -235,6 +236,7 @@ static int uvc_parse_format(struct uvc_device *dev,
format->type = buffer[2];
format->index = buffer[3];
+ format->frames = frames;
switch (buffer[2]) {
case UVC_VS_FORMAT_UNCOMPRESSED:
@@ -339,8 +341,8 @@ static int uvc_parse_format(struct uvc_device *dev,
ftype = 0;
/* Create a dummy frame descriptor. */
- frame = &format->frame[0];
- memset(&format->frame[0], 0, sizeof(format->frame[0]));
+ frame = &frames[0];
+ memset(frame, 0, sizeof(*frame));
frame->bFrameIntervalType = 1;
frame->dwDefaultFrameInterval = 1;
frame->dwFrameInterval = *intervals;
@@ -370,7 +372,9 @@ static int uvc_parse_format(struct uvc_device *dev,
*/
while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
buffer[2] == ftype) {
- frame = &format->frame[format->nframes];
+ unsigned int maxIntervalIndex;
+
+ frame = &frames[format->nframes];
if (ftype != UVC_VS_FRAME_FRAME_BASED)
n = buflen > 25 ? buffer[25] : 0;
else
@@ -405,8 +409,27 @@ static int uvc_parse_format(struct uvc_device *dev,
get_unaligned_le32(&buffer[17]);
frame->bFrameIntervalType = buffer[21];
}
+
+ /*
+ * Copy the frame intervals.
+ *
+ * Some bogus devices report dwMinFrameInterval equal to
+ * dwMaxFrameInterval and have dwFrameIntervalStep set to
+ * zero. Setting all null intervals to 1 fixes the problem and
+ * some other divisions by zero that could happen.
+ */
frame->dwFrameInterval = *intervals;
+ for (i = 0; i < n; ++i) {
+ interval = get_unaligned_le32(&buffer[26+4*i]);
+ (*intervals)[i] = interval ? interval : 1;
+ }
+
+ /*
+ * Apply more fixes, quirks and workarounds to handle incorrect
+ * or broken descriptors.
+ */
+
/*
* Several UVC chipsets screw up dwMaxVideoFrameBufferSize
* completely. Observed behaviours range from setting the
@@ -421,30 +444,25 @@ static int uvc_parse_format(struct uvc_device *dev,
* frame->wWidth * frame->wHeight / 8;
/*
- * Some bogus devices report dwMinFrameInterval equal to
- * dwMaxFrameInterval and have dwFrameIntervalStep set to
- * zero. Setting all null intervals to 1 fixes the problem and
- * some other divisions by zero that could happen.
+ * Clamp the default frame interval to the boundaries. A zero
+ * bFrameIntervalType value indicates a continuous frame
+ * interval range, with dwFrameInterval[0] storing the minimum
+ * value and dwFrameInterval[1] storing the maximum value.
*/
- for (i = 0; i < n; ++i) {
- interval = get_unaligned_le32(&buffer[26+4*i]);
- *(*intervals)++ = interval ? interval : 1;
- }
+ maxIntervalIndex = frame->bFrameIntervalType ? n - 1 : 1;
+ frame->dwDefaultFrameInterval =
+ clamp(frame->dwDefaultFrameInterval,
+ frame->dwFrameInterval[0],
+ frame->dwFrameInterval[maxIntervalIndex]);
/*
- * Make sure that the default frame interval stays between
- * the boundaries.
+ * Some devices report frame intervals that are not functional.
+ * If the corresponding quirk is set, restrict operation to the
+ * first interval only.
*/
- n -= frame->bFrameIntervalType ? 1 : 2;
- frame->dwDefaultFrameInterval =
- min(frame->dwFrameInterval[n],
- max(frame->dwFrameInterval[0],
- frame->dwDefaultFrameInterval));
-
if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) {
frame->bFrameIntervalType = 1;
- frame->dwFrameInterval[0] =
- frame->dwDefaultFrameInterval;
+ (*intervals)[0] = frame->dwDefaultFrameInterval;
}
uvc_dbg(dev, DESCR, "- %ux%u (%u.%u fps)\n",
@@ -453,6 +471,8 @@ static int uvc_parse_format(struct uvc_device *dev,
(100000000 / frame->dwDefaultFrameInterval) % 10);
format->nframes++;
+ *intervals += n;
+
buflen -= buffer[0];
buffer += buffer[0];
}
@@ -493,7 +513,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
struct uvc_format *format;
struct uvc_frame *frame;
struct usb_host_interface *alts = &intf->altsetting[0];
- unsigned char *_buffer, *buffer = alts->extra;
+ const unsigned char *_buffer, *buffer = alts->extra;
int _buflen, buflen = alts->extralen;
unsigned int nformats = 0, nframes = 0, nintervals = 0;
unsigned int size, i, n, p;
@@ -677,7 +697,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
frame = (struct uvc_frame *)&format[nformats];
interval = (u32 *)&frame[nframes];
- streaming->format = format;
+ streaming->formats = format;
streaming->nformats = 0;
/* Parse the format descriptors. */
@@ -687,8 +707,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
case UVC_VS_FORMAT_MJPEG:
case UVC_VS_FORMAT_DV:
case UVC_VS_FORMAT_FRAME_BASED:
- format->frame = frame;
- ret = uvc_parse_format(dev, streaming, format,
+ ret = uvc_parse_format(dev, streaming, format, frame,
&interval, buffer, buflen);
if (ret < 0)
goto error;
@@ -1147,7 +1166,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev,
static int uvc_parse_control(struct uvc_device *dev)
{
struct usb_host_interface *alts = dev->intf->cur_altsetting;
- unsigned char *buffer = alts->extra;
+ const unsigned char *buffer = alts->extra;
int buflen = alts->extralen;
int ret;
@@ -3011,15 +3030,33 @@ static const struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = (kernel_ulong_t)&uvc_ctrl_power_line_limited },
- /* Acer EasyCamera */
+ /* Intel D410/ASR depth camera */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
- .idVendor = 0x5986,
- .idProduct = 0x1180,
+ .idVendor = 0x8086,
+ .idProduct = 0x0ad2,
.bInterfaceClass = USB_CLASS_VIDEO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
- .driver_info = (kernel_ulong_t)&uvc_ctrl_power_line_limited },
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D415/ASRC depth camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0ad3,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D430/AWG depth camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0ad4,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
/* Intel RealSense D4M */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
@@ -3029,6 +3066,42 @@ static const struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D435/AWGC depth camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0b07,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D435i depth camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0b3a,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D405 Depth Camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0b5b,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
+ /* Intel D455 Depth Camera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x8086,
+ .idProduct = 0x0b5c,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) },
/* Generic USB Video Class */
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) },
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) },
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-18 17:40:25 +0300