| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * uvc_driver.c -- USB Video Class driver |
| * |
| * Copyright (C) 2005-2010 |
| * Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
| */ |
| |
| #include <linux/atomic.h> |
| #include <linux/bits.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/kernel.h> |
| #include <linux/list.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/usb.h> |
| #include <linux/usb/quirks.h> |
| #include <linux/usb/uvc.h> |
| #include <linux/videodev2.h> |
| #include <linux/vmalloc.h> |
| #include <linux/wait.h> |
| #include <linux/unaligned.h> |
| |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-ioctl.h> |
| |
| #include "uvcvideo.h" |
| |
| #define DRIVER_AUTHOR "Laurent Pinchart " \ |
| "<laurent.pinchart@ideasonboard.com>" |
| #define DRIVER_DESC "USB Video Class driver" |
| |
| unsigned int uvc_clock_param = CLOCK_MONOTONIC; |
| unsigned int uvc_hw_timestamps_param; |
| unsigned int uvc_no_drop_param; |
| static unsigned int uvc_quirks_param = -1; |
| unsigned int uvc_dbg_param; |
| unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT; |
| |
| /* ------------------------------------------------------------------------ |
| * Utility functions |
| */ |
| |
| struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, |
| u8 epaddr) |
| { |
| struct usb_host_endpoint *ep; |
| unsigned int i; |
| |
| for (i = 0; i < alts->desc.bNumEndpoints; ++i) { |
| ep = &alts->endpoint[i]; |
| if (ep->desc.bEndpointAddress == epaddr) |
| return ep; |
| } |
| |
| return NULL; |
| } |
| |
| static enum v4l2_colorspace uvc_colorspace(const u8 primaries) |
| { |
| static const enum v4l2_colorspace colorprimaries[] = { |
| V4L2_COLORSPACE_SRGB, /* Unspecified */ |
| V4L2_COLORSPACE_SRGB, |
| V4L2_COLORSPACE_470_SYSTEM_M, |
| V4L2_COLORSPACE_470_SYSTEM_BG, |
| V4L2_COLORSPACE_SMPTE170M, |
| V4L2_COLORSPACE_SMPTE240M, |
| }; |
| |
| if (primaries < ARRAY_SIZE(colorprimaries)) |
| return colorprimaries[primaries]; |
| |
| return V4L2_COLORSPACE_SRGB; /* Reserved */ |
| } |
| |
| static enum v4l2_xfer_func uvc_xfer_func(const u8 transfer_characteristics) |
| { |
| /* |
| * V4L2 does not currently have definitions for all possible values of |
| * UVC transfer characteristics. If v4l2_xfer_func is extended with new |
| * values, the mapping below should be updated. |
| * |
| * Substitutions are taken from the mapping given for |
| * V4L2_XFER_FUNC_DEFAULT documented in videodev2.h. |
| */ |
| static const enum v4l2_xfer_func xfer_funcs[] = { |
| V4L2_XFER_FUNC_DEFAULT, /* Unspecified */ |
| V4L2_XFER_FUNC_709, |
| V4L2_XFER_FUNC_709, /* Substitution for BT.470-2 M */ |
| V4L2_XFER_FUNC_709, /* Substitution for BT.470-2 B, G */ |
| V4L2_XFER_FUNC_709, /* Substitution for SMPTE 170M */ |
| V4L2_XFER_FUNC_SMPTE240M, |
| V4L2_XFER_FUNC_NONE, |
| V4L2_XFER_FUNC_SRGB, |
| }; |
| |
| if (transfer_characteristics < ARRAY_SIZE(xfer_funcs)) |
| return xfer_funcs[transfer_characteristics]; |
| |
| return V4L2_XFER_FUNC_DEFAULT; /* Reserved */ |
| } |
| |
| static enum v4l2_ycbcr_encoding uvc_ycbcr_enc(const u8 matrix_coefficients) |
| { |
| /* |
| * V4L2 does not currently have definitions for all possible values of |
| * UVC matrix coefficients. If v4l2_ycbcr_encoding is extended with new |
| * values, the mapping below should be updated. |
| * |
| * Substitutions are taken from the mapping given for |
| * V4L2_YCBCR_ENC_DEFAULT documented in videodev2.h. |
| * |
| * FCC is assumed to be close enough to 601. |
| */ |
| static const enum v4l2_ycbcr_encoding ycbcr_encs[] = { |
| V4L2_YCBCR_ENC_DEFAULT, /* Unspecified */ |
| V4L2_YCBCR_ENC_709, |
| V4L2_YCBCR_ENC_601, /* Substitution for FCC */ |
| V4L2_YCBCR_ENC_601, /* Substitution for BT.470-2 B, G */ |
| V4L2_YCBCR_ENC_601, |
| V4L2_YCBCR_ENC_SMPTE240M, |
| }; |
| |
| if (matrix_coefficients < ARRAY_SIZE(ycbcr_encs)) |
| return ycbcr_encs[matrix_coefficients]; |
| |
| return V4L2_YCBCR_ENC_DEFAULT; /* Reserved */ |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * Terminal and unit management |
| */ |
| |
| struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) |
| { |
| struct uvc_entity *entity; |
| |
| list_for_each_entry(entity, &dev->entities, list) { |
| if (entity->id == id) |
| return entity; |
| } |
| |
| return NULL; |
| } |
| |
| static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, |
| int id, struct uvc_entity *entity) |
| { |
| unsigned int i; |
| |
| if (entity == NULL) |
| entity = list_entry(&dev->entities, struct uvc_entity, list); |
| |
| list_for_each_entry_continue(entity, &dev->entities, list) { |
| for (i = 0; i < entity->bNrInPins; ++i) |
| if (entity->baSourceID[i] == id) |
| return entity; |
| } |
| |
| return NULL; |
| } |
| |
| static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) |
| { |
| struct uvc_streaming *stream; |
| |
| list_for_each_entry(stream, &dev->streams, list) { |
| if (stream->header.bTerminalLink == id) |
| return stream; |
| } |
| |
| return NULL; |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * Streaming Object Management |
| */ |
| |
| static void uvc_stream_delete(struct uvc_streaming *stream) |
| { |
| if (stream->async_wq) |
| destroy_workqueue(stream->async_wq); |
| |
| mutex_destroy(&stream->mutex); |
| |
| usb_put_intf(stream->intf); |
| |
| kfree(stream->formats); |
| kfree(stream->header.bmaControls); |
| kfree(stream); |
| } |
| |
| static struct uvc_streaming *uvc_stream_new(struct uvc_device *dev, |
| struct usb_interface *intf) |
| { |
| struct uvc_streaming *stream; |
| |
| stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
| if (stream == NULL) |
| return NULL; |
| |
| mutex_init(&stream->mutex); |
| |
| stream->dev = dev; |
| stream->intf = usb_get_intf(intf); |
| stream->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; |
| |
| /* Allocate a stream specific work queue for asynchronous tasks. */ |
| stream->async_wq = alloc_workqueue("uvcvideo", WQ_UNBOUND | WQ_HIGHPRI, |
| 0); |
| if (!stream->async_wq) { |
| uvc_stream_delete(stream); |
| return NULL; |
| } |
| |
| return stream; |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * Descriptors parsing |
| */ |
| |
| static int uvc_parse_format(struct uvc_device *dev, |
| struct uvc_streaming *streaming, struct uvc_format *format, |
| 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; |
| const 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; |
| |
| format->type = buffer[2]; |
| format->index = buffer[3]; |
| format->frames = frames; |
| |
| switch (buffer[2]) { |
| case UVC_VS_FORMAT_UNCOMPRESSED: |
| case UVC_VS_FORMAT_FRAME_BASED: |
| n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; |
| if (buflen < n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d FORMAT error\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| /* Find the format descriptor from its GUID. */ |
| fmtdesc = uvc_format_by_guid(&buffer[5]); |
| |
| if (!fmtdesc) { |
| /* |
| * Unknown video formats are not fatal errors, the |
| * caller will skip this descriptor. |
| */ |
| dev_info(&streaming->intf->dev, |
| "Unknown video format %pUl\n", &buffer[5]); |
| return 0; |
| } |
| |
| format->fcc = fmtdesc->fcc; |
| 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) { |
| format->fcc = V4L2_PIX_FMT_GREY; |
| format->bpp = 8; |
| width_multiplier = 2; |
| } |
| } |
| |
| /* 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 { |
| ftype = UVC_VS_FRAME_FRAME_BASED; |
| if (buffer[27]) |
| format->flags = UVC_FMT_FLAG_COMPRESSED; |
| } |
| break; |
| |
| case UVC_VS_FORMAT_MJPEG: |
| if (buflen < 11) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d FORMAT error\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| format->fcc = V4L2_PIX_FMT_MJPEG; |
| format->flags = UVC_FMT_FLAG_COMPRESSED; |
| format->bpp = 0; |
| ftype = UVC_VS_FRAME_MJPEG; |
| break; |
| |
| case UVC_VS_FORMAT_DV: |
| if (buflen < 9) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d FORMAT error\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| if ((buffer[8] & 0x7f) > 2) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d: unknown DV format %u\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber, buffer[8]); |
| return -EINVAL; |
| } |
| |
| format->fcc = V4L2_PIX_FMT_DV; |
| format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; |
| format->bpp = 0; |
| ftype = 0; |
| |
| /* Create a dummy frame descriptor. */ |
| frame = &frames[0]; |
| memset(frame, 0, sizeof(*frame)); |
| frame->bFrameIntervalType = 1; |
| frame->dwDefaultFrameInterval = 1; |
| frame->dwFrameInterval = *intervals; |
| *(*intervals)++ = 1; |
| format->nframes = 1; |
| break; |
| |
| case UVC_VS_FORMAT_MPEG2TS: |
| case UVC_VS_FORMAT_STREAM_BASED: |
| /* Not supported yet. */ |
| default: |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d unsupported format %u\n", |
| dev->udev->devnum, alts->desc.bInterfaceNumber, |
| buffer[2]); |
| return -EINVAL; |
| } |
| |
| uvc_dbg(dev, DESCR, "Found format %p4cc", &format->fcc); |
| |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| |
| /* |
| * Parse the frame descriptors. Only uncompressed, MJPEG and frame |
| * based formats have frame descriptors. |
| */ |
| while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
| buffer[2] == ftype) { |
| unsigned int maxIntervalIndex; |
| |
| frame = &frames[format->nframes]; |
| if (ftype != UVC_VS_FRAME_FRAME_BASED) |
| n = buflen > 25 ? buffer[25] : 0; |
| else |
| n = buflen > 21 ? buffer[21] : 0; |
| |
| n = n ? n : 3; |
| |
| if (buflen < 26 + 4*n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d FRAME error\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| frame->bFrameIndex = buffer[3]; |
| frame->bmCapabilities = buffer[4]; |
| 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]); |
| if (ftype != UVC_VS_FRAME_FRAME_BASED) { |
| frame->dwMaxVideoFrameBufferSize = |
| get_unaligned_le32(&buffer[17]); |
| frame->dwDefaultFrameInterval = |
| get_unaligned_le32(&buffer[21]); |
| frame->bFrameIntervalType = buffer[25]; |
| } else { |
| frame->dwMaxVideoFrameBufferSize = 0; |
| frame->dwDefaultFrameInterval = |
| 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 |
| * value to 1.1x the actual frame size to hardwiring the |
| * 16 low bits to 0. This results in a higher than necessary |
| * memory usage as well as a wrong image size information. For |
| * uncompressed formats this can be fixed by computing the |
| * value from the frame size. |
| */ |
| if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) |
| frame->dwMaxVideoFrameBufferSize = format->bpp |
| * frame->wWidth * frame->wHeight / 8; |
| |
| /* |
| * 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. |
| */ |
| maxIntervalIndex = frame->bFrameIntervalType ? n - 1 : 1; |
| frame->dwDefaultFrameInterval = |
| clamp(frame->dwDefaultFrameInterval, |
| frame->dwFrameInterval[0], |
| frame->dwFrameInterval[maxIntervalIndex]); |
| |
| /* |
| * Some devices report frame intervals that are not functional. |
| * If the corresponding quirk is set, restrict operation to the |
| * first interval only. |
| */ |
| if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { |
| frame->bFrameIntervalType = 1; |
| (*intervals)[0] = frame->dwDefaultFrameInterval; |
| } |
| |
| uvc_dbg(dev, DESCR, "- %ux%u (%u.%u fps)\n", |
| frame->wWidth, frame->wHeight, |
| 10000000 / frame->dwDefaultFrameInterval, |
| (100000000 / frame->dwDefaultFrameInterval) % 10); |
| |
| format->nframes++; |
| *intervals += n; |
| |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } |
| |
| if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
| buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } |
| |
| if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && |
| buffer[2] == UVC_VS_COLORFORMAT) { |
| if (buflen < 6) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d COLORFORMAT error\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| format->colorspace = uvc_colorspace(buffer[3]); |
| format->xfer_func = uvc_xfer_func(buffer[4]); |
| format->ycbcr_enc = uvc_ycbcr_enc(buffer[5]); |
| |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } else { |
| format->colorspace = V4L2_COLORSPACE_SRGB; |
| } |
| |
| return buffer - start; |
| } |
| |
| static int uvc_parse_streaming(struct uvc_device *dev, |
| struct usb_interface *intf) |
| { |
| struct uvc_streaming *streaming = NULL; |
| struct uvc_format *format; |
| struct uvc_frame *frame; |
| struct usb_host_interface *alts = &intf->altsetting[0]; |
| 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; |
| u32 *interval; |
| u16 psize; |
| int ret = -EINVAL; |
| |
| if (intf->cur_altsetting->desc.bInterfaceSubClass |
| != UVC_SC_VIDEOSTREAMING) { |
| uvc_dbg(dev, DESCR, |
| "device %d interface %d isn't a video streaming interface\n", |
| dev->udev->devnum, |
| intf->altsetting[0].desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { |
| uvc_dbg(dev, DESCR, |
| "device %d interface %d is already claimed\n", |
| dev->udev->devnum, |
| intf->altsetting[0].desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| streaming = uvc_stream_new(dev, intf); |
| if (streaming == NULL) { |
| usb_driver_release_interface(&uvc_driver.driver, intf); |
| return -ENOMEM; |
| } |
| |
| /* |
| * The Pico iMage webcam has its class-specific interface descriptors |
| * after the endpoint descriptors. |
| */ |
| if (buflen == 0) { |
| for (i = 0; i < alts->desc.bNumEndpoints; ++i) { |
| struct usb_host_endpoint *ep = &alts->endpoint[i]; |
| |
| if (ep->extralen == 0) |
| continue; |
| |
| if (ep->extralen > 2 && |
| ep->extra[1] == USB_DT_CS_INTERFACE) { |
| uvc_dbg(dev, DESCR, |
| "trying extra data from endpoint %u\n", |
| i); |
| buffer = alts->endpoint[i].extra; |
| buflen = alts->endpoint[i].extralen; |
| break; |
| } |
| } |
| } |
| |
| /* Skip the standard interface descriptors. */ |
| while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } |
| |
| if (buflen <= 2) { |
| uvc_dbg(dev, DESCR, |
| "no class-specific streaming interface descriptors found\n"); |
| goto error; |
| } |
| |
| /* Parse the header descriptor. */ |
| switch (buffer[2]) { |
| case UVC_VS_OUTPUT_HEADER: |
| streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| size = 9; |
| break; |
| |
| case UVC_VS_INPUT_HEADER: |
| streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| size = 13; |
| break; |
| |
| default: |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d HEADER descriptor not found\n", |
| dev->udev->devnum, alts->desc.bInterfaceNumber); |
| goto error; |
| } |
| |
| p = buflen >= 4 ? buffer[3] : 0; |
| n = buflen >= size ? buffer[size-1] : 0; |
| |
| if (buflen < size + p*n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d HEADER descriptor is invalid\n", |
| dev->udev->devnum, alts->desc.bInterfaceNumber); |
| goto error; |
| } |
| |
| streaming->header.bNumFormats = p; |
| streaming->header.bEndpointAddress = buffer[6]; |
| if (buffer[2] == UVC_VS_INPUT_HEADER) { |
| streaming->header.bmInfo = buffer[7]; |
| streaming->header.bTerminalLink = buffer[8]; |
| streaming->header.bStillCaptureMethod = buffer[9]; |
| streaming->header.bTriggerSupport = buffer[10]; |
| streaming->header.bTriggerUsage = buffer[11]; |
| } else { |
| streaming->header.bTerminalLink = buffer[7]; |
| } |
| streaming->header.bControlSize = n; |
| |
| streaming->header.bmaControls = kmemdup(&buffer[size], p * n, |
| GFP_KERNEL); |
| if (streaming->header.bmaControls == NULL) { |
| ret = -ENOMEM; |
| goto error; |
| } |
| |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| |
| _buffer = buffer; |
| _buflen = buflen; |
| |
| /* Count the format and frame descriptors. */ |
| while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { |
| switch (_buffer[2]) { |
| case UVC_VS_FORMAT_UNCOMPRESSED: |
| case UVC_VS_FORMAT_MJPEG: |
| case UVC_VS_FORMAT_FRAME_BASED: |
| nformats++; |
| break; |
| |
| case UVC_VS_FORMAT_DV: |
| /* |
| * DV format has no frame descriptor. We will create a |
| * dummy frame descriptor with a dummy frame interval. |
| */ |
| nformats++; |
| nframes++; |
| nintervals++; |
| break; |
| |
| case UVC_VS_FORMAT_MPEG2TS: |
| case UVC_VS_FORMAT_STREAM_BASED: |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d FORMAT %u is not supported\n", |
| dev->udev->devnum, |
| alts->desc.bInterfaceNumber, _buffer[2]); |
| break; |
| |
| case UVC_VS_FRAME_UNCOMPRESSED: |
| case UVC_VS_FRAME_MJPEG: |
| nframes++; |
| if (_buflen > 25) |
| nintervals += _buffer[25] ? _buffer[25] : 3; |
| break; |
| |
| case UVC_VS_FRAME_FRAME_BASED: |
| nframes++; |
| if (_buflen > 21) |
| nintervals += _buffer[21] ? _buffer[21] : 3; |
| break; |
| } |
| |
| _buflen -= _buffer[0]; |
| _buffer += _buffer[0]; |
| } |
| |
| if (nformats == 0) { |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d has no supported formats defined\n", |
| dev->udev->devnum, alts->desc.bInterfaceNumber); |
| goto error; |
| } |
| |
| /* |
| * Allocate memory for the formats, the frames and the intervals, |
| * plus any required padding to guarantee that everything has the |
| * correct alignment. |
| */ |
| size = nformats * sizeof(*format); |
| size = ALIGN(size, __alignof__(*frame)) + nframes * sizeof(*frame); |
| size = ALIGN(size, __alignof__(*interval)) |
| + nintervals * sizeof(*interval); |
| |
| format = kzalloc(size, GFP_KERNEL); |
| if (!format) { |
| ret = -ENOMEM; |
| goto error; |
| } |
| |
| frame = (void *)format + nformats * sizeof(*format); |
| frame = PTR_ALIGN(frame, __alignof__(*frame)); |
| interval = (void *)frame + nframes * sizeof(*frame); |
| interval = PTR_ALIGN(interval, __alignof__(*interval)); |
| |
| streaming->formats = format; |
| streaming->nformats = 0; |
| |
| /* Parse the format descriptors. */ |
| while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { |
| switch (buffer[2]) { |
| case UVC_VS_FORMAT_UNCOMPRESSED: |
| case UVC_VS_FORMAT_MJPEG: |
| case UVC_VS_FORMAT_DV: |
| case UVC_VS_FORMAT_FRAME_BASED: |
| ret = uvc_parse_format(dev, streaming, format, frame, |
| &interval, buffer, buflen); |
| if (ret < 0) |
| goto error; |
| if (!ret) |
| break; |
| |
| streaming->nformats++; |
| frame += format->nframes; |
| format++; |
| |
| buflen -= ret; |
| buffer += ret; |
| continue; |
| |
| default: |
| break; |
| } |
| |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } |
| |
| if (buflen) |
| uvc_dbg(dev, DESCR, |
| "device %d videostreaming interface %d has %u bytes of trailing descriptor garbage\n", |
| dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); |
| |
| /* Parse the alternate settings to find the maximum bandwidth. */ |
| for (i = 0; i < intf->num_altsetting; ++i) { |
| struct usb_host_endpoint *ep; |
| |
| alts = &intf->altsetting[i]; |
| ep = uvc_find_endpoint(alts, |
| streaming->header.bEndpointAddress); |
| if (ep == NULL) |
| continue; |
| psize = uvc_endpoint_max_bpi(dev->udev, ep); |
| if (psize > streaming->maxpsize) |
| streaming->maxpsize = psize; |
| } |
| |
| list_add_tail(&streaming->list, &dev->streams); |
| return 0; |
| |
| error: |
| usb_driver_release_interface(&uvc_driver.driver, intf); |
| uvc_stream_delete(streaming); |
| return ret; |
| } |
| |
| static const u8 uvc_camera_guid[16] = UVC_GUID_UVC_CAMERA; |
| static const u8 uvc_gpio_guid[16] = UVC_GUID_EXT_GPIO_CONTROLLER; |
| static const u8 uvc_media_transport_input_guid[16] = |
| UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT; |
| static const u8 uvc_processing_guid[16] = UVC_GUID_UVC_PROCESSING; |
| |
| static struct uvc_entity *uvc_alloc_entity(u16 type, u16 id, |
| unsigned int num_pads, unsigned int extra_size) |
| { |
| struct uvc_entity *entity; |
| unsigned int num_inputs; |
| unsigned int size; |
| unsigned int i; |
| |
| extra_size = roundup(extra_size, sizeof(*entity->pads)); |
| if (num_pads) |
| num_inputs = type & UVC_TERM_OUTPUT ? num_pads : num_pads - 1; |
| else |
| num_inputs = 0; |
| size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads |
| + num_inputs; |
| entity = kzalloc(size, GFP_KERNEL); |
| if (entity == NULL) |
| return NULL; |
| |
| entity->id = id; |
| entity->type = type; |
| |
| /* |
| * Set the GUID for standard entity types. For extension units, the GUID |
| * is initialized by the caller. |
| */ |
| switch (type) { |
| case UVC_EXT_GPIO_UNIT: |
| memcpy(entity->guid, uvc_gpio_guid, 16); |
| break; |
| case UVC_ITT_CAMERA: |
| memcpy(entity->guid, uvc_camera_guid, 16); |
| break; |
| case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
| memcpy(entity->guid, uvc_media_transport_input_guid, 16); |
| break; |
| case UVC_VC_PROCESSING_UNIT: |
| memcpy(entity->guid, uvc_processing_guid, 16); |
| break; |
| } |
| |
| entity->num_links = 0; |
| entity->num_pads = num_pads; |
| entity->pads = ((void *)(entity + 1)) + extra_size; |
| |
| for (i = 0; i < num_inputs; ++i) |
| entity->pads[i].flags = MEDIA_PAD_FL_SINK; |
| if (!UVC_ENTITY_IS_OTERM(entity) && num_pads) |
| entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; |
| |
| entity->bNrInPins = num_inputs; |
| entity->baSourceID = (u8 *)(&entity->pads[num_pads]); |
| |
| return entity; |
| } |
| |
| static void uvc_entity_set_name(struct uvc_device *dev, struct uvc_entity *entity, |
| const char *type_name, u8 string_id) |
| { |
| int ret; |
| |
| /* |
| * First attempt to read the entity name from the device. If the entity |
| * has no associated string, or if reading the string fails (most |
| * likely due to a buggy firmware), fall back to default names based on |
| * the entity type. |
| */ |
| if (string_id) { |
| ret = usb_string(dev->udev, string_id, entity->name, |
| sizeof(entity->name)); |
| if (!ret) |
| return; |
| } |
| |
| sprintf(entity->name, "%s %u", type_name, entity->id); |
| } |
| |
| /* Parse vendor-specific extensions. */ |
| static int uvc_parse_vendor_control(struct uvc_device *dev, |
| const unsigned char *buffer, int buflen) |
| { |
| struct usb_device *udev = dev->udev; |
| struct usb_host_interface *alts = dev->intf->cur_altsetting; |
| struct uvc_entity *unit; |
| unsigned int n, p; |
| int handled = 0; |
| |
| switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { |
| case 0x046d: /* Logitech */ |
| if (buffer[1] != 0x41 || buffer[2] != 0x01) |
| break; |
| |
| /* |
| * Logitech implements several vendor specific functions |
| * through vendor specific extension units (LXU). |
| * |
| * The LXU descriptors are similar to XU descriptors |
| * (see "USB Device Video Class for Video Devices", section |
| * 3.7.2.6 "Extension Unit Descriptor") with the following |
| * differences: |
| * |
| * ---------------------------------------------------------- |
| * 0 bLength 1 Number |
| * Size of this descriptor, in bytes: 24+p+n*2 |
| * ---------------------------------------------------------- |
| * 23+p+n bmControlsType N Bitmap |
| * Individual bits in the set are defined: |
| * 0: Absolute |
| * 1: Relative |
| * |
| * This bitset is mapped exactly the same as bmControls. |
| * ---------------------------------------------------------- |
| * 23+p+n*2 bReserved 1 Boolean |
| * ---------------------------------------------------------- |
| * 24+p+n*2 iExtension 1 Index |
| * Index of a string descriptor that describes this |
| * extension unit. |
| * ---------------------------------------------------------- |
| */ |
| p = buflen >= 22 ? buffer[21] : 0; |
| n = buflen >= 25 + p ? buffer[22+p] : 0; |
| |
| if (buflen < 25 + p + 2*n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d EXTENSION_UNIT error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| break; |
| } |
| |
| unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3], |
| p + 1, 2*n); |
| if (unit == NULL) |
| return -ENOMEM; |
| |
| memcpy(unit->guid, &buffer[4], 16); |
| unit->extension.bNumControls = buffer[20]; |
| memcpy(unit->baSourceID, &buffer[22], p); |
| unit->extension.bControlSize = buffer[22+p]; |
| unit->extension.bmControls = (u8 *)unit + sizeof(*unit); |
| unit->extension.bmControlsType = (u8 *)unit + sizeof(*unit) |
| + n; |
| memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); |
| |
| uvc_entity_set_name(dev, unit, "Extension", buffer[24+p+2*n]); |
| |
| list_add_tail(&unit->list, &dev->entities); |
| handled = 1; |
| break; |
| } |
| |
| return handled; |
| } |
| |
| static int uvc_parse_standard_control(struct uvc_device *dev, |
| const unsigned char *buffer, int buflen) |
| { |
| struct usb_device *udev = dev->udev; |
| struct uvc_entity *unit, *term; |
| struct usb_interface *intf; |
| struct usb_host_interface *alts = dev->intf->cur_altsetting; |
| unsigned int i, n, p, len; |
| const char *type_name; |
| u16 type; |
| |
| switch (buffer[2]) { |
| case UVC_VC_HEADER: |
| n = buflen >= 12 ? buffer[11] : 0; |
| |
| if (buflen < 12 + n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d HEADER error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| 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) { |
| intf = usb_ifnum_to_if(udev, buffer[12+i]); |
| if (intf == NULL) { |
| uvc_dbg(dev, DESCR, |
| "device %d interface %d doesn't exists\n", |
| udev->devnum, i); |
| continue; |
| } |
| |
| uvc_parse_streaming(dev, intf); |
| } |
| break; |
| |
| case UVC_VC_INPUT_TERMINAL: |
| if (buflen < 8) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d INPUT_TERMINAL error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| /* |
| * Reject invalid terminal types that would cause issues: |
| * |
| * - The high byte must be non-zero, otherwise it would be |
| * confused with a unit. |
| * |
| * - Bit 15 must be 0, as we use it internally as a terminal |
| * direction flag. |
| * |
| * Other unknown types are accepted. |
| */ |
| type = get_unaligned_le16(&buffer[4]); |
| if ((type & 0x7f00) == 0 || (type & 0x8000) != 0) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d INPUT_TERMINAL %d has invalid type 0x%04x, skipping\n", |
| udev->devnum, alts->desc.bInterfaceNumber, |
| buffer[3], type); |
| return 0; |
| } |
| |
| n = 0; |
| p = 0; |
| len = 8; |
| |
| if (type == UVC_ITT_CAMERA) { |
| n = buflen >= 15 ? buffer[14] : 0; |
| len = 15; |
| |
| } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
| n = buflen >= 9 ? buffer[8] : 0; |
| p = buflen >= 10 + n ? buffer[9+n] : 0; |
| len = 10; |
| } |
| |
| if (buflen < len + n + p) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d INPUT_TERMINAL error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3], |
| 1, n + p); |
| if (term == NULL) |
| return -ENOMEM; |
| |
| if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { |
| term->camera.bControlSize = n; |
| term->camera.bmControls = (u8 *)term + sizeof(*term); |
| term->camera.wObjectiveFocalLengthMin = |
| get_unaligned_le16(&buffer[8]); |
| term->camera.wObjectiveFocalLengthMax = |
| get_unaligned_le16(&buffer[10]); |
| term->camera.wOcularFocalLength = |
| get_unaligned_le16(&buffer[12]); |
| memcpy(term->camera.bmControls, &buffer[15], n); |
| } else if (UVC_ENTITY_TYPE(term) == |
| UVC_ITT_MEDIA_TRANSPORT_INPUT) { |
| term->media.bControlSize = n; |
| term->media.bmControls = (u8 *)term + sizeof(*term); |
| term->media.bTransportModeSize = p; |
| term->media.bmTransportModes = (u8 *)term |
| + sizeof(*term) + n; |
| memcpy(term->media.bmControls, &buffer[9], n); |
| memcpy(term->media.bmTransportModes, &buffer[10+n], p); |
| } |
| |
| if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) |
| type_name = "Camera"; |
| else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) |
| type_name = "Media"; |
| else |
| type_name = "Input"; |
| |
| uvc_entity_set_name(dev, term, type_name, buffer[7]); |
| |
| list_add_tail(&term->list, &dev->entities); |
| break; |
| |
| case UVC_VC_OUTPUT_TERMINAL: |
| if (buflen < 9) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d OUTPUT_TERMINAL error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| /* |
| * Make sure the terminal type MSB is not null, otherwise it |
| * could be confused with a unit. |
| */ |
| type = get_unaligned_le16(&buffer[4]); |
| if ((type & 0xff00) == 0) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d OUTPUT_TERMINAL %d has invalid type 0x%04x, skipping\n", |
| udev->devnum, alts->desc.bInterfaceNumber, |
| buffer[3], type); |
| return 0; |
| } |
| |
| term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3], |
| 1, 0); |
| if (term == NULL) |
| return -ENOMEM; |
| |
| memcpy(term->baSourceID, &buffer[7], 1); |
| |
| uvc_entity_set_name(dev, term, "Output", buffer[8]); |
| |
| list_add_tail(&term->list, &dev->entities); |
| break; |
| |
| case UVC_VC_SELECTOR_UNIT: |
| p = buflen >= 5 ? buffer[4] : 0; |
| |
| if (buflen < 5 || buflen < 6 + p) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d SELECTOR_UNIT error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0); |
| if (unit == NULL) |
| return -ENOMEM; |
| |
| memcpy(unit->baSourceID, &buffer[5], p); |
| |
| uvc_entity_set_name(dev, unit, "Selector", buffer[5+p]); |
| |
| list_add_tail(&unit->list, &dev->entities); |
| break; |
| |
| case UVC_VC_PROCESSING_UNIT: |
| n = buflen >= 8 ? buffer[7] : 0; |
| p = dev->uvc_version >= 0x0110 ? 10 : 9; |
| |
| if (buflen < p + n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d PROCESSING_UNIT error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n); |
| if (unit == NULL) |
| return -ENOMEM; |
| |
| memcpy(unit->baSourceID, &buffer[4], 1); |
| unit->processing.wMaxMultiplier = |
| get_unaligned_le16(&buffer[5]); |
| unit->processing.bControlSize = buffer[7]; |
| unit->processing.bmControls = (u8 *)unit + sizeof(*unit); |
| memcpy(unit->processing.bmControls, &buffer[8], n); |
| if (dev->uvc_version >= 0x0110) |
| unit->processing.bmVideoStandards = buffer[9+n]; |
| |
| uvc_entity_set_name(dev, unit, "Processing", buffer[8+n]); |
| |
| list_add_tail(&unit->list, &dev->entities); |
| break; |
| |
| case UVC_VC_EXTENSION_UNIT: |
| p = buflen >= 22 ? buffer[21] : 0; |
| n = buflen >= 24 + p ? buffer[22+p] : 0; |
| |
| if (buflen < 24 + p + n) { |
| uvc_dbg(dev, DESCR, |
| "device %d videocontrol interface %d EXTENSION_UNIT error\n", |
| udev->devnum, alts->desc.bInterfaceNumber); |
| return -EINVAL; |
| } |
| |
| unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n); |
| if (unit == NULL) |
| return -ENOMEM; |
| |
| memcpy(unit->guid, &buffer[4], 16); |
| unit->extension.bNumControls = buffer[20]; |
| memcpy(unit->baSourceID, &buffer[22], p); |
| unit->extension.bControlSize = buffer[22+p]; |
| unit->extension.bmControls = (u8 *)unit + sizeof(*unit); |
| memcpy(unit->extension.bmControls, &buffer[23+p], n); |
| |
| uvc_entity_set_name(dev, unit, "Extension", buffer[23+p+n]); |
| |
| list_add_tail(&unit->list, &dev->entities); |
| break; |
| |
| default: |
| uvc_dbg(dev, DESCR, |
| "Found an unknown CS_INTERFACE descriptor (%u)\n", |
| buffer[2]); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int uvc_parse_control(struct uvc_device *dev) |
| { |
| struct usb_host_interface *alts = dev->intf->cur_altsetting; |
| const unsigned char *buffer = alts->extra; |
| int buflen = alts->extralen; |
| int ret; |
| |
| /* |
| * Parse the default alternate setting only, as the UVC specification |
| * defines a single alternate setting, the default alternate setting |
| * zero. |
| */ |
| |
| while (buflen > 2) { |
| if (uvc_parse_vendor_control(dev, buffer, buflen) || |
| buffer[1] != USB_DT_CS_INTERFACE) |
| goto next_descriptor; |
| |
| ret = uvc_parse_standard_control(dev, buffer, buflen); |
| if (ret < 0) |
| return ret; |
| |
| next_descriptor: |
| buflen -= buffer[0]; |
| buffer += buffer[0]; |
| } |
| |
| /* |
| * 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; |
| |
| if (usb_endpoint_is_int_in(desc) && |
| le16_to_cpu(desc->wMaxPacketSize) >= 8 && |
| desc->bInterval != 0) { |
| uvc_dbg(dev, DESCR, |
| "Found a Status endpoint (addr %02x)\n", |
| desc->bEndpointAddress); |
| dev->int_ep = ep; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------------- |
| * Privacy GPIO |
| */ |
| |
| static void uvc_gpio_event(struct uvc_device *dev) |
| { |
| struct uvc_entity *unit = dev->gpio_unit; |
| struct uvc_video_chain *chain; |
| u8 new_val; |
| |
| if (!unit) |
| return; |
| |
| new_val = gpiod_get_value_cansleep(unit->gpio.gpio_privacy); |
| |
| /* GPIO entities are always on the first chain. */ |
| chain = list_first_entry(&dev->chains, struct uvc_video_chain, list); |
| uvc_ctrl_status_event(chain, unit->controls, &new_val); |
| } |
| |
| static int uvc_gpio_get_cur(struct uvc_device *dev, struct uvc_entity *entity, |
| u8 cs, void *data, u16 size) |
| { |
| if (cs != UVC_CT_PRIVACY_CONTROL || size < 1) |
| return -EINVAL; |
| |
| *(u8 *)data = gpiod_get_value_cansleep(entity->gpio.gpio_privacy); |
| |
| return 0; |
| } |
| |
| static int uvc_gpio_get_info(struct uvc_device *dev, struct uvc_entity *entity, |
| u8 cs, u8 *caps) |
| { |
| if (cs != UVC_CT_PRIVACY_CONTROL) |
| return -EINVAL; |
| |
| *caps = UVC_CONTROL_CAP_GET | UVC_CONTROL_CAP_AUTOUPDATE; |
| return 0; |
| } |
| |
| static irqreturn_t uvc_gpio_irq(int irq, void *data) |
| { |
| struct uvc_device *dev = data; |
| |
| uvc_gpio_event(dev); |
| return IRQ_HANDLED; |
| } |
| |
| static int uvc_gpio_parse(struct uvc_device *dev) |
| { |
| struct uvc_entity *unit; |
| struct gpio_desc *gpio_privacy; |
| int irq; |
| |
| gpio_privacy = devm_gpiod_get_optional(&dev->udev->dev, "privacy", |
| GPIOD_IN); |
| if (IS_ERR_OR_NULL(gpio_privacy)) |
| return PTR_ERR_OR_ZERO(gpio_privacy); |
| |
| irq = gpiod_to_irq(gpio_privacy); |
| if (irq < 0) |
| return dev_err_probe(&dev->udev->dev, irq, |
| "No IRQ for privacy GPIO\n"); |
| |
| unit = uvc_alloc_entity(UVC_EXT_GPIO_UNIT, UVC_EXT_GPIO_UNIT_ID, 0, 1); |
| if (!unit) |
| return -ENOMEM; |
| |
| unit->gpio.gpio_privacy = gpio_privacy; |
| unit->gpio.irq = irq; |
| unit->gpio.bControlSize = 1; |
| unit->gpio.bmControls = (u8 *)unit + sizeof(*unit); |
| unit->gpio.bmControls[0] = 1; |
| unit->get_cur = uvc_gpio_get_cur; |
| unit->get_info = uvc_gpio_get_info; |
| strscpy(unit->name, "GPIO", sizeof(unit->name)); |
| |
| list_add_tail(&unit->list, &dev->entities); |
| |
| dev->gpio_unit = unit; |
| |
| return 0; |
| } |
| |
| static int uvc_gpio_init_irq(struct uvc_device *dev) |
| { |
| struct uvc_entity *unit = dev->gpio_unit; |
| |
| if (!unit || unit->gpio.irq < 0) |
| return 0; |
| |
| return devm_request_threaded_irq(&dev->udev->dev, unit->gpio.irq, NULL, |
| uvc_gpio_irq, |
| IRQF_ONESHOT | IRQF_TRIGGER_FALLING | |
| IRQF_TRIGGER_RISING, |
| "uvc_privacy_gpio", dev); |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * UVC device scan |
| */ |
| |
| /* |
| * Scan the UVC descriptors to locate a chain starting at an Output Terminal |
| * and containing the following units: |
| * |
| * - one or more Output Terminals (USB Streaming or Display) |
| * - zero or one Processing Unit |
| * - zero, one or more single-input Selector Units |
| * - zero or one multiple-input Selector Units, provided all inputs are |
| * connected to input terminals |
| * - zero, one or mode single-input Extension Units |
| * - one or more Input Terminals (Camera, External or USB Streaming) |
| * |
| * The terminal and units must match on of the following structures: |
| * |
| * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) |
| * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... |
| * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) |
| * |
| * +---------+ +---------+ -> OTT_*(0) |
| * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... |
| * +---------+ +---------+ -> OTT_*(n) |
| * |
| * The Processing Unit and Extension Units can be in any order. Additional |
| * Extension Units connected to the main chain as single-unit branches are |
| * also supported. Single-input Selector Units are ignored. |
| */ |
| static int uvc_scan_chain_entity(struct uvc_video_chain *chain, |
| struct uvc_entity *entity) |
| { |
| switch (UVC_ENTITY_TYPE(entity)) { |
| case UVC_VC_EXTENSION_UNIT: |
| uvc_dbg_cont(PROBE, " <- XU %d", entity->id); |
| |
| if (entity->bNrInPins != 1) { |
| uvc_dbg(chain->dev, DESCR, |
| "Extension unit %d has more than 1 input pin\n", |
| entity->id); |
| return -1; |
| } |
| |
| break; |
| |
| case UVC_VC_PROCESSING_UNIT: |
| uvc_dbg_cont(PROBE, " <- PU %d", entity->id); |
| |
| if (chain->processing != NULL) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found multiple Processing Units in chain\n"); |
| return -1; |
| } |
| |
| chain->processing = entity; |
| break; |
| |
| case UVC_VC_SELECTOR_UNIT: |
| uvc_dbg_cont(PROBE, " <- SU %d", entity->id); |
| |
| /* Single-input selector units are ignored. */ |
| if (entity->bNrInPins == 1) |
| break; |
| |
| if (chain->selector != NULL) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found multiple Selector Units in chain\n"); |
| return -1; |
| } |
| |
| chain->selector = entity; |
| break; |
| |
| case UVC_ITT_VENDOR_SPECIFIC: |
| case UVC_ITT_CAMERA: |
| case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
| uvc_dbg_cont(PROBE, " <- IT %d\n", entity->id); |
| |
| break; |
| |
| case UVC_OTT_VENDOR_SPECIFIC: |
| case UVC_OTT_DISPLAY: |
| case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
| uvc_dbg_cont(PROBE, " OT %d", entity->id); |
| |
| break; |
| |
| case UVC_TT_STREAMING: |
| if (UVC_ENTITY_IS_ITERM(entity)) |
| uvc_dbg_cont(PROBE, " <- IT %d\n", entity->id); |
| else |
| uvc_dbg_cont(PROBE, " OT %d", entity->id); |
| |
| break; |
| |
| default: |
| uvc_dbg(chain->dev, DESCR, |
| "Unsupported entity type 0x%04x found in chain\n", |
| UVC_ENTITY_TYPE(entity)); |
| return -1; |
| } |
| |
| list_add_tail(&entity->chain, &chain->entities); |
| return 0; |
| } |
| |
| static int uvc_scan_chain_forward(struct uvc_video_chain *chain, |
| struct uvc_entity *entity, struct uvc_entity *prev) |
| { |
| struct uvc_entity *forward; |
| int found; |
| |
| /* Forward scan */ |
| forward = NULL; |
| found = 0; |
| |
| while (1) { |
| forward = uvc_entity_by_reference(chain->dev, entity->id, |
| forward); |
| if (forward == NULL) |
| break; |
| if (forward == prev) |
| continue; |
| if (forward->chain.next || forward->chain.prev) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found reference to entity %d already in chain\n", |
| forward->id); |
| return -EINVAL; |
| } |
| |
| switch (UVC_ENTITY_TYPE(forward)) { |
| case UVC_VC_EXTENSION_UNIT: |
| if (forward->bNrInPins != 1) { |
| uvc_dbg(chain->dev, DESCR, |
| "Extension unit %d has more than 1 input pin\n", |
| forward->id); |
| return -EINVAL; |
| } |
| |
| /* |
| * Some devices reference an output terminal as the |
| * source of extension units. This is incorrect, as |
| * output terminals only have an input pin, and thus |
| * can't be connected to any entity in the forward |
| * direction. The resulting topology would cause issues |
| * when registering the media controller graph. To |
| * avoid this problem, connect the extension unit to |
| * the source of the output terminal instead. |
| */ |
| if (UVC_ENTITY_IS_OTERM(entity)) { |
| struct uvc_entity *source; |
| |
| source = uvc_entity_by_id(chain->dev, |
| entity->baSourceID[0]); |
| if (!source) { |
| uvc_dbg(chain->dev, DESCR, |
| "Can't connect extension unit %u in chain\n", |
| forward->id); |
| break; |
| } |
| |
| forward->baSourceID[0] = source->id; |
| } |
| |
| list_add_tail(&forward->chain, &chain->entities); |
| if (!found) |
| uvc_dbg_cont(PROBE, " (->"); |
| |
| uvc_dbg_cont(PROBE, " XU %d", forward->id); |
| found = 1; |
| break; |
| |
| case UVC_OTT_VENDOR_SPECIFIC: |
| case UVC_OTT_DISPLAY: |
| case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
| case UVC_TT_STREAMING: |
| if (UVC_ENTITY_IS_ITERM(forward)) { |
| uvc_dbg(chain->dev, DESCR, |
| "Unsupported input terminal %u\n", |
| forward->id); |
| return -EINVAL; |
| } |
| |
| if (UVC_ENTITY_IS_OTERM(entity)) { |
| uvc_dbg(chain->dev, DESCR, |
| "Unsupported connection between output terminals %u and %u\n", |
| entity->id, forward->id); |
| break; |
| } |
| |
| list_add_tail(&forward->chain, &chain->entities); |
| if (!found) |
| uvc_dbg_cont(PROBE, " (->"); |
| |
| uvc_dbg_cont(PROBE, " OT %d", forward->id); |
| found = 1; |
| break; |
| } |
| } |
| if (found) |
| uvc_dbg_cont(PROBE, ")"); |
| |
| return 0; |
| } |
| |
| static int uvc_scan_chain_backward(struct uvc_video_chain *chain, |
| struct uvc_entity **_entity) |
| { |
| struct uvc_entity *entity = *_entity; |
| struct uvc_entity *term; |
| int id = -EINVAL, i; |
| |
| switch (UVC_ENTITY_TYPE(entity)) { |
| case UVC_VC_EXTENSION_UNIT: |
| case UVC_VC_PROCESSING_UNIT: |
| id = entity->baSourceID[0]; |
| break; |
| |
| case UVC_VC_SELECTOR_UNIT: |
| /* Single-input selector units are ignored. */ |
| if (entity->bNrInPins == 1) { |
| id = entity->baSourceID[0]; |
| break; |
| } |
| |
| uvc_dbg_cont(PROBE, " <- IT"); |
| |
| chain->selector = entity; |
| for (i = 0; i < entity->bNrInPins; ++i) { |
| id = entity->baSourceID[i]; |
| term = uvc_entity_by_id(chain->dev, id); |
| if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { |
| uvc_dbg(chain->dev, DESCR, |
| "Selector unit %d input %d isn't connected to an input terminal\n", |
| entity->id, i); |
| return -1; |
| } |
| |
| if (term->chain.next || term->chain.prev) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found reference to entity %d already in chain\n", |
| term->id); |
| return -EINVAL; |
| } |
| |
| uvc_dbg_cont(PROBE, " %d", term->id); |
| |
| list_add_tail(&term->chain, &chain->entities); |
| uvc_scan_chain_forward(chain, term, entity); |
| } |
| |
| uvc_dbg_cont(PROBE, "\n"); |
| |
| id = 0; |
| break; |
| |
| case UVC_ITT_VENDOR_SPECIFIC: |
| case UVC_ITT_CAMERA: |
| case UVC_ITT_MEDIA_TRANSPORT_INPUT: |
| case UVC_OTT_VENDOR_SPECIFIC: |
| case UVC_OTT_DISPLAY: |
| case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: |
| case UVC_TT_STREAMING: |
| id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; |
| break; |
| } |
| |
| if (id <= 0) { |
| *_entity = NULL; |
| return id; |
| } |
| |
| entity = uvc_entity_by_id(chain->dev, id); |
| if (entity == NULL) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found reference to unknown entity %d\n", id); |
| return -EINVAL; |
| } |
| |
| *_entity = entity; |
| return 0; |
| } |
| |
| static int uvc_scan_chain(struct uvc_video_chain *chain, |
| struct uvc_entity *term) |
| { |
| struct uvc_entity *entity, *prev; |
| |
| uvc_dbg(chain->dev, PROBE, "Scanning UVC chain:"); |
| |
| entity = term; |
| prev = NULL; |
| |
| while (entity != NULL) { |
| /* Entity must not be part of an existing chain */ |
| if (entity->chain.next || entity->chain.prev) { |
| uvc_dbg(chain->dev, DESCR, |
| "Found reference to entity %d already in chain\n", |
| entity->id); |
| return -EINVAL; |
| } |
| |
| /* Process entity */ |
| if (uvc_scan_chain_entity(chain, entity) < 0) |
| return -EINVAL; |
| |
| /* Forward scan */ |
| if (uvc_scan_chain_forward(chain, entity, prev) < 0) |
| return -EINVAL; |
| |
| /* Backward scan */ |
| prev = entity; |
| if (uvc_scan_chain_backward(chain, &entity) < 0) |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static unsigned int uvc_print_terms(struct list_head *terms, u16 dir, |
| char *buffer) |
| { |
| struct uvc_entity *term; |
| unsigned int nterms = 0; |
| char *p = buffer; |
| |
| list_for_each_entry(term, terms, chain) { |
| if (!UVC_ENTITY_IS_TERM(term) || |
| UVC_TERM_DIRECTION(term) != dir) |
| continue; |
| |
| if (nterms) |
| p += sprintf(p, ","); |
| if (++nterms >= 4) { |
| p += sprintf(p, "..."); |
| break; |
| } |
| p += sprintf(p, "%u", term->id); |
| } |
| |
| return p - buffer; |
| } |
| |
| static const char *uvc_print_chain(struct uvc_video_chain *chain) |
| { |
| static char buffer[43]; |
| char *p = buffer; |
| |
| p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p); |
| p += sprintf(p, " -> "); |
| uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p); |
| |
| return buffer; |
| } |
| |
| static struct uvc_video_chain *uvc_alloc_chain(struct uvc_device *dev) |
| { |
| struct uvc_video_chain *chain; |
| |
| chain = kzalloc(sizeof(*chain), GFP_KERNEL); |
| if (chain == NULL) |
| return NULL; |
| |
| INIT_LIST_HEAD(&chain->entities); |
| mutex_init(&chain->ctrl_mutex); |
| chain->dev = dev; |
| v4l2_prio_init(&chain->prio); |
| |
| return chain; |
| } |
| |
| /* |
| * Fallback heuristic for devices that don't connect units and terminals in a |
| * valid chain. |
| * |
| * Some devices have invalid baSourceID references, causing uvc_scan_chain() |
| * to fail, but if we just take the entities we can find and put them together |
| * in the most sensible chain we can think of, turns out they do work anyway. |
| * Note: This heuristic assumes there is a single chain. |
| * |
| * At the time of writing, devices known to have such a broken chain are |
| * - Acer Integrated Camera (5986:055a) |
| * - Realtek rtl157a7 (0bda:57a7) |
| */ |
| static int uvc_scan_fallback(struct uvc_device *dev) |
| { |
| struct uvc_video_chain *chain; |
| struct uvc_entity *iterm = NULL; |
| struct uvc_entity *oterm = NULL; |
| struct uvc_entity *entity; |
| struct uvc_entity *prev; |
| |
| /* |
| * Start by locating the input and output terminals. We only support |
| * devices with exactly one of each for now. |
| */ |
| list_for_each_entry(entity, &dev->entities, list) { |
| if (UVC_ENTITY_IS_ITERM(entity)) { |
| if (iterm) |
| return -EINVAL; |
| iterm = entity; |
| } |
| |
| if (UVC_ENTITY_IS_OTERM(entity)) { |
| if (oterm) |
| return -EINVAL; |
| oterm = entity; |
| } |
| } |
| |
| if (iterm == NULL || oterm == NULL) |
| return -EINVAL; |
| |
| /* Allocate the chain and fill it. */ |
| chain = uvc_alloc_chain(dev); |
| if (chain == NULL) |
| return -ENOMEM; |
| |
| if (uvc_scan_chain_entity(chain, oterm) < 0) |
| goto error; |
| |
| prev = oterm; |
| |
| /* |
| * Add all Processing and Extension Units with two pads. The order |
| * doesn't matter much, use reverse list traversal to connect units in |
| * UVC descriptor order as we build the chain from output to input. This |
| * leads to units appearing in the order meant by the manufacturer for |
| * the cameras known to require this heuristic. |
| */ |
| list_for_each_entry_reverse(entity, &dev->entities, list) { |
| if (entity->type != UVC_VC_PROCESSING_UNIT && |
| entity->type != UVC_VC_EXTENSION_UNIT) |
| continue; |
| |
| if (entity->num_pads != 2) |
| continue; |
| |
| if (uvc_scan_chain_entity(chain, entity) < 0) |
| goto error; |
| |
| prev->baSourceID[0] = entity->id; |
| prev = entity; |
| } |
| |
| if (uvc_scan_chain_entity(chain, iterm) < 0) |
| goto error; |
| |
| prev->baSourceID[0] = iterm->id; |
| |
| list_add_tail(&chain->list, &dev->chains); |
| |
| uvc_dbg(dev, PROBE, "Found a video chain by fallback heuristic (%s)\n", |
| uvc_print_chain(chain)); |
| |
| return 0; |
| |
| error: |
| kfree(chain); |
| return -EINVAL; |
| } |
| |
| /* |
| * Scan the device for video chains and register video devices. |
| * |
| * Chains are scanned starting at their output terminals and walked backwards. |
| */ |
| static int uvc_scan_device(struct uvc_device *dev) |
| { |
| struct uvc_video_chain *chain; |
| struct uvc_entity *term; |
| |
| list_for_each_entry(term, &dev->entities, list) { |
| if (!UVC_ENTITY_IS_OTERM(term)) |
| continue; |
| |
| /* |
| * If the terminal is already included in a chain, skip it. |
| * This can happen for chains that have multiple output |
| * terminals, where all output terminals beside the first one |
| * will be inserted in the chain in forward scans. |
| */ |
| if (term->chain.next || term->chain.prev) |
| continue; |
| |
| chain = uvc_alloc_chain(dev); |
| if (chain == NULL) |
| return -ENOMEM; |
| |
| term->flags |= UVC_ENTITY_FLAG_DEFAULT; |
| |
| if (uvc_scan_chain(chain, term) < 0) { |
| kfree(chain); |
| continue; |
| } |
| |
| uvc_dbg(dev, PROBE, "Found a valid video chain (%s)\n", |
| uvc_print_chain(chain)); |
| |
| list_add_tail(&chain->list, &dev->chains); |
| } |
| |
| if (list_empty(&dev->chains)) |
| uvc_scan_fallback(dev); |
| |
| if (list_empty(&dev->chains)) { |
| dev_info(&dev->udev->dev, "No valid video chain found.\n"); |
| return -1; |
| } |
| |
| /* Add GPIO entity to the first chain. */ |
| if (dev->gpio_unit) { |
| chain = list_first_entry(&dev->chains, |
| struct uvc_video_chain, list); |
| list_add_tail(&dev->gpio_unit->chain, &chain->entities); |
| } |
| |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * Video device registration and unregistration |
| */ |
| |
| /* |
| * Delete the UVC device. |
| * |
| * Called by the kernel when the last reference to the uvc_device structure |
| * is released. |
| * |
| * As this function is called after or during disconnect(), all URBs have |
| * already been cancelled by the USB core. There is no need to kill the |
| * interrupt URB manually. |
| */ |
| static void uvc_delete(struct kref *kref) |
| { |
| struct uvc_device *dev = container_of(kref, struct uvc_device, ref); |
| struct list_head *p, *n; |
| |
| uvc_status_cleanup(dev); |
| uvc_ctrl_cleanup_device(dev); |
| |
| usb_put_intf(dev->intf); |
| usb_put_dev(dev->udev); |
| |
| #ifdef CONFIG_MEDIA_CONTROLLER |
| media_device_cleanup(&dev->mdev); |
| #endif |
| |
| list_for_each_safe(p, n, &dev->chains) { |
| struct uvc_video_chain *chain; |
| |
| chain = list_entry(p, struct uvc_video_chain, list); |
| kfree(chain); |
| } |
| |
| list_for_each_safe(p, n, &dev->entities) { |
| struct uvc_entity *entity; |
| |
| entity = list_entry(p, struct uvc_entity, list); |
| #ifdef CONFIG_MEDIA_CONTROLLER |
| uvc_mc_cleanup_entity(entity); |
| #endif |
| kfree(entity); |
| } |
| |
| list_for_each_safe(p, n, &dev->streams) { |
| struct uvc_streaming *streaming; |
| |
| streaming = list_entry(p, struct uvc_streaming, list); |
| usb_driver_release_interface(&uvc_driver.driver, |
| streaming->intf); |
| uvc_stream_delete(streaming); |
| } |
| |
| kfree(dev); |
| } |
| |
| static void uvc_release(struct video_device *vdev) |
| { |
| struct uvc_streaming *stream = video_get_drvdata(vdev); |
| struct uvc_device *dev = stream->dev; |
| |
| kref_put(&dev->ref, uvc_delete); |
| } |
| |
| /* |
| * Unregister the video devices. |
| */ |
| static void uvc_unregister_video(struct uvc_device *dev) |
| { |
| struct uvc_streaming *stream; |
| |
| list_for_each_entry(stream, &dev->streams, list) { |
| if (!video_is_registered(&stream->vdev)) |
| continue; |
| |
| video_unregister_device(&stream->vdev); |
| video_unregister_device(&stream->meta.vdev); |
| |
| uvc_debugfs_cleanup_stream(stream); |
| } |
| |
| uvc_status_unregister(dev); |
| |
| if (dev->vdev.dev) |
| v4l2_device_unregister(&dev->vdev); |
| #ifdef CONFIG_MEDIA_CONTROLLER |
| if (media_devnode_is_registered(dev->mdev.devnode)) |
| media_device_unregister(&dev->mdev); |
| #endif |
| } |
| |
| int uvc_register_video_device(struct uvc_device *dev, |
| struct uvc_streaming *stream, |
| struct video_device *vdev, |
| struct uvc_video_queue *queue, |
| enum v4l2_buf_type type, |
| const struct v4l2_file_operations *fops, |
| const struct v4l2_ioctl_ops *ioctl_ops) |
| { |
| int ret; |
| |
| /* Initialize the video buffers queue. */ |
| ret = uvc_queue_init(queue, type, !uvc_no_drop_param); |
| if (ret) |
| return ret; |
| |
| /* Register the device with V4L. */ |
| |
| /* |
| * We already hold a reference to dev->udev. The video device will be |
| * unregistered before the reference is released, so we don't need to |
| * get another one. |
| */ |
| vdev->v4l2_dev = &dev->vdev; |
| vdev->fops = fops; |
| vdev->ioctl_ops = ioctl_ops; |
| vdev->release = uvc_release; |
| vdev->prio = &stream->chain->prio; |
| if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
| vdev->vfl_dir = VFL_DIR_TX; |
| else |
| vdev->vfl_dir = VFL_DIR_RX; |
| |
| switch (type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| default: |
| vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
| break; |
| case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
| vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; |
| break; |
| case V4L2_BUF_TYPE_META_CAPTURE: |
| vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING; |
| break; |
| } |
| |
| strscpy(vdev->name, dev->name, sizeof(vdev->name)); |
| |
| /* |
| * Set the driver data before calling video_register_device, otherwise |
| * the file open() handler might race us. |
| */ |
| video_set_drvdata(vdev, stream); |
| |
| ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); |
| if (ret < 0) { |
| dev_err(&stream->intf->dev, |
| "Failed to register %s device (%d).\n", |
| v4l2_type_names[type], ret); |
| return ret; |
| } |
| |
| kref_get(&dev->ref); |
| return 0; |
| } |
| |
| static int uvc_register_video(struct uvc_device *dev, |
| struct uvc_streaming *stream) |
| { |
| int ret; |
| |
| /* Initialize the streaming interface with default parameters. */ |
| ret = uvc_video_init(stream); |
| if (ret < 0) { |
| dev_err(&stream->intf->dev, |
| "Failed to initialize the device (%d).\n", ret); |
| return ret; |
| } |
| |
| if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE |
| | V4L2_CAP_META_CAPTURE; |
| else |
| stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; |
| |
| uvc_debugfs_init_stream(stream); |
| |
| /* Register the device with V4L. */ |
| return uvc_register_video_device(dev, stream, &stream->vdev, |
| &stream->queue, stream->type, |
| &uvc_fops, &uvc_ioctl_ops); |
| } |
| |
| /* |
| * Register all video devices in all chains. |
| */ |
| static int uvc_register_terms(struct uvc_device *dev, |
| struct uvc_video_chain *chain) |
| { |
| struct uvc_streaming *stream; |
| struct uvc_entity *term; |
| int ret; |
| |
| list_for_each_entry(term, &chain->entities, chain) { |
| if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) |
| continue; |
| |
| stream = uvc_stream_by_id(dev, term->id); |
| if (stream == NULL) { |
| dev_info(&dev->udev->dev, |
| "No streaming interface found for terminal %u.", |
| term->id); |
| continue; |
| } |
| |
| stream->chain = chain; |
| ret = uvc_register_video(dev, stream); |
| if (ret < 0) |
| return ret; |
| |
| /* |
| * Register a metadata node, but ignore a possible failure, |
| * complete registration of video nodes anyway. |
| */ |
| uvc_meta_register(stream); |
| |
| term->vdev = &stream->vdev; |
| } |
| |
| return 0; |
| } |
| |
| static int uvc_register_chains(struct uvc_device *dev) |
| { |
| struct uvc_video_chain *chain; |
| int ret; |
| |
| list_for_each_entry(chain, &dev->chains, list) { |
| ret = uvc_register_terms(dev, chain); |
| if (ret < 0) |
| return ret; |
| |
| #ifdef CONFIG_MEDIA_CONTROLLER |
| ret = uvc_mc_register_entities(chain); |
| if (ret < 0) |
| dev_info(&dev->udev->dev, |
| "Failed to register entities (%d).\n", ret); |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * USB probe, disconnect, suspend and resume |
| */ |
| |
| static const struct uvc_device_info uvc_quirk_none = { 0 }; |
| |
| static int uvc_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| struct usb_device *udev = interface_to_usbdev(intf); |
| struct uvc_device *dev; |
| const struct uvc_device_info *info = |
| (const struct uvc_device_info *)id->driver_info; |
| int function; |
| int ret; |
| |
| /* Allocate memory for the device and initialize it. */ |
| dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| if (dev == NULL) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&dev->entities); |
| INIT_LIST_HEAD(&dev->chains); |
| INIT_LIST_HEAD(&dev->streams); |
| kref_init(&dev->ref); |
| atomic_set(&dev->nmappings, 0); |
| mutex_init(&dev->lock); |
| |
| dev->udev = usb_get_dev(udev); |
| dev->intf = usb_get_intf(intf); |
| dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; |
| dev->info = info ? info : &uvc_quirk_none; |
| dev->quirks = uvc_quirks_param == -1 |
| ? dev->info->quirks : uvc_quirks_param; |
| |
| if (id->idVendor && id->idProduct) |
| uvc_dbg(dev, PROBE, "Probing known UVC device %s (%04x:%04x)\n", |
| udev->devpath, id->idVendor, id->idProduct); |
| else |
| uvc_dbg(dev, PROBE, "Probing generic UVC device %s\n", |
| udev->devpath); |
| |
| if (udev->product != NULL) |
| strscpy(dev->name, udev->product, sizeof(dev->name)); |
| else |
| snprintf(dev->name, sizeof(dev->name), |
| "UVC Camera (%04x:%04x)", |
| le16_to_cpu(udev->descriptor.idVendor), |
| le16_to_cpu(udev->descriptor.idProduct)); |
| |
| /* |
| * Add iFunction or iInterface to names when available as additional |
| * distinguishers between interfaces. iFunction is prioritized over |
| * iInterface which matches Windows behavior at the point of writing. |
| */ |
| if (intf->intf_assoc && intf->intf_assoc->iFunction != 0) |
| function = intf->intf_assoc->iFunction; |
| else |
| function = intf->cur_altsetting->desc.iInterface; |
| if (function != 0) { |
| size_t len; |
| |
| strlcat(dev->name, ": ", sizeof(dev->name)); |
| len = strlen(dev->name); |
| usb_string(udev, function, dev->name + len, |
| 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_dbg(dev, PROBE, "Unable to parse UVC descriptors\n"); |
| goto error; |
| } |
| |
| /* Parse the associated GPIOs. */ |
| if (uvc_gpio_parse(dev) < 0) { |
| uvc_dbg(dev, PROBE, "Unable to parse UVC GPIOs\n"); |
| goto error; |
| } |
| |
| dev_info(&dev->udev->dev, "Found UVC %u.%02x device %s (%04x:%04x)\n", |
| dev->uvc_version >> 8, dev->uvc_version & 0xff, |
| udev->product ? udev->product : "<unnamed>", |
| le16_to_cpu(udev->descriptor.idVendor), |
| le16_to_cpu(udev->descriptor.idProduct)); |
| |
| if (dev->quirks != dev->info->quirks) { |
| dev_info(&dev->udev->dev, |
| "Forcing device quirks to 0x%x by module parameter for testing purpose.\n", |
| dev->quirks); |
| dev_info(&dev->udev->dev, |
| "Please report required quirks to the linux-media mailing list.\n"); |
| } |
| |
| if (dev->info->uvc_version) { |
| dev->uvc_version = dev->info->uvc_version; |
| dev_info(&dev->udev->dev, "Forcing UVC version to %u.%02x\n", |
| dev->uvc_version >> 8, dev->uvc_version & 0xff); |
| } |
| |
| /* Register the V4L2 device. */ |
| if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) |
| goto error; |
| |
| /* Scan the device for video chains. */ |
| if (uvc_scan_device(dev) < 0) |
| goto error; |
| |
| /* Initialize controls. */ |
| if (uvc_ctrl_init_device(dev) < 0) |
| goto error; |
| |
| /* Register video device nodes. */ |
| if (uvc_register_chains(dev) < 0) |
| goto error; |
| |
| #ifdef CONFIG_MEDIA_CONTROLLER |
| /* Register the media device node */ |
| if (media_device_register(&dev->mdev) < 0) |
| goto error; |
| #endif |
| /* Save our data pointer in the interface data. */ |
| usb_set_intfdata(intf, dev); |
| |
| /* Initialize the interrupt URB. */ |
| ret = uvc_status_init(dev); |
| if (ret < 0) { |
| dev_info(&dev->udev->dev, |
| "Unable to initialize the status endpoint (%d), status interrupt will not be supported.\n", |
| ret); |
| } |
| |
| ret = uvc_gpio_init_irq(dev); |
| if (ret < 0) { |
| dev_err(&dev->udev->dev, |
| "Unable to request privacy GPIO IRQ (%d)\n", ret); |
| goto error; |
| } |
| |
| if (dev->quirks & UVC_QUIRK_NO_RESET_RESUME) |
| udev->quirks &= ~USB_QUIRK_RESET_RESUME; |
| |
| if (!(dev->quirks & UVC_QUIRK_DISABLE_AUTOSUSPEND)) |
| usb_enable_autosuspend(udev); |
| |
| uvc_dbg(dev, PROBE, "UVC device initialized\n"); |
| |
| return 0; |
| |
| error: |
| uvc_unregister_video(dev); |
| kref_put(&dev->ref, uvc_delete); |
| return -ENODEV; |
| } |
| |
| static void uvc_disconnect(struct usb_interface *intf) |
| { |
| struct uvc_device *dev = usb_get_intfdata(intf); |
| |
| /* |
| * Set the USB interface data to NULL. This can be done outside the |
| * lock, as there's no other reader. |
| */ |
| usb_set_intfdata(intf, NULL); |
| |
| if (intf->cur_altsetting->desc.bInterfaceSubClass == |
| UVC_SC_VIDEOSTREAMING) |
| return; |
| |
| uvc_unregister_video(dev); |
| kref_put(&dev->ref, uvc_delete); |
| } |
| |
| static int uvc_suspend(struct usb_interface *intf, pm_message_t message) |
| { |
| struct uvc_device *dev = usb_get_intfdata(intf); |
| struct uvc_streaming *stream; |
| |
| uvc_dbg(dev, SUSPEND, "Suspending interface %u\n", |
| intf->cur_altsetting->desc.bInterfaceNumber); |
| |
| /* Controls are cached on the fly so they don't need to be saved. */ |
| if (intf->cur_altsetting->desc.bInterfaceSubClass == |
| UVC_SC_VIDEOCONTROL) { |
| mutex_lock(&dev->lock); |
| if (dev->users) |
| uvc_status_stop(dev); |
| mutex_unlock(&dev->lock); |
| return 0; |
| } |
| |
| list_for_each_entry(stream, &dev->streams, list) { |
| if (stream->intf == intf) |
| return uvc_video_suspend(stream); |
| } |
| |
| uvc_dbg(dev, SUSPEND, |
| "Suspend: video streaming USB interface mismatch\n"); |
| return -EINVAL; |
| } |
| |
| static int __uvc_resume(struct usb_interface *intf, int reset) |
| { |
| struct uvc_device *dev = usb_get_intfdata(intf); |
| struct uvc_streaming *stream; |
| int ret = 0; |
| |
| uvc_dbg(dev, SUSPEND, "Resuming interface %u\n", |
| intf->cur_altsetting->desc.bInterfaceNumber); |
| |
| if (intf->cur_altsetting->desc.bInterfaceSubClass == |
| UVC_SC_VIDEOCONTROL) { |
| if (reset) { |
| ret = uvc_ctrl_restore_values(dev); |
| if (ret < 0) |
| return ret; |
| } |
| |
| mutex_lock(&dev->lock); |
| if (dev->users) |
| ret = uvc_status_start(dev, GFP_NOIO); |
| mutex_unlock(&dev->lock); |
| |
| return ret; |
| } |
| |
| list_for_each_entry(stream, &dev->streams, list) { |
| if (stream->intf == intf) { |
| ret = uvc_video_resume(stream, reset); |
| if (ret < 0) |
| uvc_queue_streamoff(&stream->queue, |
| stream->queue.queue.type); |
| return ret; |
| } |
| } |
| |
| uvc_dbg(dev, SUSPEND, |
| "Resume: video streaming USB interface mismatch\n"); |
| return -EINVAL; |
| } |
| |
| static int uvc_resume(struct usb_interface *intf) |
| { |
| return __uvc_resume(intf, 0); |
| } |
| |
| static int uvc_reset_resume(struct usb_interface *intf) |
| { |
| return __uvc_resume(intf, 1); |
| } |
| |
| /* ------------------------------------------------------------------------ |
| * Module parameters |
| */ |
| |
| static int uvc_clock_param_get(char *buffer, const struct kernel_param *kp) |
| { |
| if (uvc_clock_param == CLOCK_MONOTONIC) |
| return sprintf(buffer, "CLOCK_MONOTONIC"); |
| else |
| return sprintf(buffer, "CLOCK_REALTIME"); |
| } |
| |
| static int uvc_clock_param_set(const char *val, const struct kernel_param *kp) |
| { |
| if (strncasecmp(val, "clock_", strlen("clock_")) == 0) |
| val += strlen("clock_"); |
| |
| if (strcasecmp(val, "monotonic") == 0) |
| uvc_clock_param = CLOCK_MONOTONIC; |
| else if (strcasecmp(val, "realtime") == 0) |
| uvc_clock_param = CLOCK_REALTIME; |
| else |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, |
| &uvc_clock_param, 0644); |
| MODULE_PARM_DESC(clock, "Video buffers timestamp clock"); |
| module_param_named(hwtimestamps, uvc_hw_timestamps_param, uint, 0644); |
| MODULE_PARM_DESC(hwtimestamps, "Use hardware timestamps"); |
| module_param_named(nodrop, uvc_no_drop_param, uint, 0644); |
| MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); |
| module_param_named(quirks, uvc_quirks_param, uint, 0644); |
| MODULE_PARM_DESC(quirks, "Forced device quirks"); |
| module_param_named(trace, uvc_dbg_param, uint, 0644); |
| MODULE_PARM_DESC(trace, "Trace level bitmask"); |
| module_param_named(timeout, uvc_timeout_param, uint, 0644); |
| MODULE_PARM_DESC(timeout, "Streaming control requests timeout"); |
| |
| /* ------------------------------------------------------------------------ |
| * Driver initialization and cleanup |
| */ |
| |
| static const struct uvc_device_info uvc_quirk_probe_minmax = { |
| .quirks = UVC_QUIRK_PROBE_MINMAX, |
| }; |
| |
| static const struct uvc_device_info uvc_quirk_fix_bandwidth = { |
| .quirks = UVC_QUIRK_FIX_BANDWIDTH, |
| }; |
| |
| static const struct uvc_device_info uvc_quirk_probe_def = { |
| .quirks = UVC_QUIRK_PROBE_DEF, |
| }; |
| |
| static const struct uvc_device_info uvc_quirk_stream_no_fid = { |
| .quirks = UVC_QUIRK_STREAM_NO_FID, |
| }; |
| |
| static const struct uvc_device_info uvc_quirk_force_y8 = { |
| .quirks = UVC_QUIRK_FORCE_Y8, |
| }; |
| |
| #define UVC_INFO_QUIRK(q) (kernel_ulong_t)&(struct uvc_device_info){.quirks = q} |
| #define UVC_INFO_META(m) (kernel_ulong_t)&(struct uvc_device_info) \ |
| {.meta_format = m} |
| |
| /* |
| * The Logitech cameras listed below have their interface class set to |
| * VENDOR_SPEC because they don't announce themselves as UVC devices, even |
| * though they are compliant. |
| */ |
| static const struct usb_device_id uvc_ids[] = { |
| /* Quanta ACER HD User Facing */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0408, |
| .idProduct = 0x4035, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = UVC_PC_PROTOCOL_15, |
| .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){ |
| .uvc_version = 0x010a, |
| } }, |
| /* LogiLink Wireless Webcam */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0416, |
| .idProduct = 0xa91a, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Genius eFace 2025 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0458, |
| .idProduct = 0x706e, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Microsoft Lifecam NX-6000 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x045e, |
| .idProduct = 0x00f8, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Microsoft Lifecam NX-3000 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x045e, |
| .idProduct = 0x0721, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Microsoft Lifecam VX-7000 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x045e, |
| .idProduct = 0x0723, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Logitech, Webcam C910 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x0821, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_WAKE_AUTOSUSPEND)}, |
| /* Logitech, Webcam B910 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x0823, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_WAKE_AUTOSUSPEND)}, |
| /* Logitech Quickcam Fusion */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c1, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech Quickcam Orbit MP */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c2, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech Quickcam Pro for Notebook */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c3, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech Quickcam Pro 5000 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c5, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech Quickcam OEM Dell Notebook */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c6, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech Quickcam OEM Cisco VT Camera II */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08c7, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Logitech HD Pro Webcam C920 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x082d, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTORE_CTRLS_ON_INIT |
| | UVC_QUIRK_INVALID_DEVICE_SOF) }, |
| /* Logitech HD Pro Webcam C922 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x085c, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_INVALID_DEVICE_SOF) }, |
| /* Logitech Rally Bar Huddle */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x087c, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
| /* Logitech Rally Bar */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x089b, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
| /* Logitech Rally Bar Mini */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x046d, |
| .idProduct = 0x08d3, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_NO_RESET_RESUME) }, |
| /* Chicony CNF7129 (Asus EEE 100HE) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x04f2, |
| .idProduct = 0xb071, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTRICT_FRAME_RATE) }, |
| /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x058f, |
| .idProduct = 0x3820, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Dell XPS m1530 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05a9, |
| .idProduct = 0x2640, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Dell SP2008WFP Monitor */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05a9, |
| .idProduct = 0x2641, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Dell Alienware X51 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05a9, |
| .idProduct = 0x2643, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Dell Studio Hybrid 140g (OmniVision webcam) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05a9, |
| .idProduct = 0x264a, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Dell XPS M1330 (OmniVision OV7670 webcam) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05a9, |
| .idProduct = 0x7670, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Apple Built-In iSight */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05ac, |
| .idProduct = 0x8501, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
| | UVC_QUIRK_BUILTIN_ISIGHT) }, |
| /* Apple FaceTime HD Camera (Built-In) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05ac, |
| .idProduct = 0x8514, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Apple Built-In iSight via iBridge */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05ac, |
| .idProduct = 0x8600, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* Foxlink ("HP Webcam" on HP Mini 5103) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05c8, |
| .idProduct = 0x0403, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
| /* Genesys Logic USB 2.0 PC Camera */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x05e3, |
| .idProduct = 0x0505, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Hercules Classic Silver */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x06f8, |
| .idProduct = 0x300c, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
| /* ViMicro Vega */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0ac8, |
| .idProduct = 0x332d, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
| /* ViMicro - Minoru3D */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0ac8, |
| .idProduct = 0x3410, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
| /* ViMicro Venus - Minoru3D */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0ac8, |
| .idProduct = 0x3420, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_fix_bandwidth }, |
| /* Ophir Optronics - SPCAM 620U */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0bd3, |
| .idProduct = 0x0555, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* MT6227 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x0e8d, |
| .idProduct = 0x0004, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
| | UVC_QUIRK_PROBE_DEF) }, |
| /* IMC Networks (Medion Akoya) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x13d3, |
| .idProduct = 0x5103, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* JMicron USB2.0 XGA WebCam */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x152d, |
| .idProduct = 0x0310, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Syntek (HP Spartan) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x174f, |
| .idProduct = 0x5212, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&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 = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Syntek (Packard Bell EasyNote MX52 */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x174f, |
| .idProduct = 0x8a12, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Syntek (Asus F9SG) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x174f, |
| .idProduct = 0x8a31, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Syntek (Asus U3S) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x174f, |
| .idProduct = 0x8a33, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Syntek (JAOtech Smart Terminal) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x174f, |
| .idProduct = 0x8a34, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Miricle 307K */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x17dc, |
| .idProduct = 0x0202, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_stream_no_fid }, |
| /* Lenovo Thinkpad SL400/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 = (kernel_ulong_t)&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_INFO_QUIRK(UVC_QUIRK_PROBE_MINMAX |
| | UVC_QUIRK_PROBE_EXTRAFIELDS) }, |
| /* Aveo Technology USB 2.0 Camera (Tasco USB Microscope) */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x1871, |
| .idProduct = 0x0516, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Ecamm Pico iMage */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x18cd, |
| .idProduct = 0xcafe, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_PROBE_EXTRAFIELDS) }, |
| /* Manta MM-353 Plako */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x18ec, |
| .idProduct = 0x3188, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* 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 = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Arkmicro unbranded */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x18ec, |
| .idProduct = 0x3290, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_def }, |
| /* The Imaging Source USB CCD cameras */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x199e, |
| .idProduct = 0x8102, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0 }, |
| /* Bodelin ProScopeHR */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_DEV_HI |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x19ab, |
| .idProduct = 0x1000, |
| .bcdDevice_hi = 0x0126, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_STATUS_INTERVAL) }, |
| /* MSI StarCam 370i */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x1b3b, |
| .idProduct = 0x2951, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Generalplus Technology Inc. 808 Camera */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x1b3f, |
| .idProduct = 0x2002, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&uvc_quirk_probe_minmax }, |
| /* Shenzhen Aoni Electronic Co.,Ltd 2K FHD camera */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x1bcf, |
| .idProduct = 0x0b40, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = (kernel_ulong_t)&(const struct uvc_device_info){ |
| .uvc_version = 0x010a, |
| } }, |
| /* SiGma Micro USB Web Camera */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x1c4f, |
| .idProduct = 0x3000, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(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 = (kernel_ulong_t)&uvc_quirk_force_y8 }, |
| /* Oculus VR Rift Sensor */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x2833, |
| .idProduct = 0x0211, |
| .bInterfaceClass = USB_CLASS_VENDOR_SPEC, |
| .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) }, |
| /* Insta360 Link */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x2e1a, |
| .idProduct = 0x4c01, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_DISABLE_AUTOSUSPEND) }, |
| /* Intel D410/ASR depth camera */ |
| { .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
| | USB_DEVICE_ID_MATCH_INT_INFO, |
| .idVendor = 0x8086, |
| .idProduct = 0x0ad2, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .bInterfaceSubClass = 1, |
| .bInterfaceProtocol = 0, |
| .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, |
| .idVendor = 0x8086, |
| .idProduct = 0x0b03, |
| .bInterfaceClass = USB_CLASS_VIDEO, |
| .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) }, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, uvc_ids); |
| |
| struct uvc_driver uvc_driver = { |
| .driver = { |
| .name = "uvcvideo", |
| .probe = uvc_probe, |
| .disconnect = uvc_disconnect, |
| .suspend = uvc_suspend, |
| .resume = uvc_resume, |
| .reset_resume = uvc_reset_resume, |
| .id_table = uvc_ids, |
| .supports_autosuspend = 1, |
| }, |
| }; |
| |
| static int __init uvc_init(void) |
| { |
| int ret; |
| |
| uvc_debugfs_init(); |
| |
| ret = usb_register(&uvc_driver.driver); |
| if (ret < 0) { |
| uvc_debugfs_cleanup(); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit uvc_cleanup(void) |
| { |
| usb_deregister(&uvc_driver.driver); |
| uvc_debugfs_cleanup(); |
| } |
| |
| module_init(uvc_init); |
| module_exit(uvc_cleanup); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(DRIVER_VERSION); |
| |
