1c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 2c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * uvc_driver.c -- USB Video Class driver 3c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 411fc5baf1dab2d30f03a391cabc5fd1808cfbe29Laurent Pinchart * Copyright (C) 2005-2010 511fc5baf1dab2d30f03a391cabc5fd1808cfbe29Laurent Pinchart * Laurent Pinchart (laurent.pinchart@ideasonboard.com) 6c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 7c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * This program is free software; you can redistribute it and/or modify 8c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * it under the terms of the GNU General Public License as published by 9c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * the Free Software Foundation; either version 2 of the License, or 10c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * (at your option) any later version. 11c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 12c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 13c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1466ede038aa7b51ffbfaf9e600536f027a6d34e56Andrew Morton#include <linux/atomic.h> 15c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/kernel.h> 16c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/list.h> 17c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/module.h> 185a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 19c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/usb.h> 20c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/videodev2.h> 21c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/vmalloc.h> 22c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <linux/wait.h> 23fd3e5824824d1beaf376cd523c7418c5570851d4Mauro Carvalho Chehab#include <linux/version.h> 249bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich#include <asm/unaligned.h> 25c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 26c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include <media/v4l2-common.h> 27c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 28c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#include "uvcvideo.h" 29c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 3011fc5baf1dab2d30f03a391cabc5fd1808cfbe29Laurent Pinchart#define DRIVER_AUTHOR "Laurent Pinchart " \ 3111fc5baf1dab2d30f03a391cabc5fd1808cfbe29Laurent Pinchart "<laurent.pinchart@ideasonboard.com>" 32c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart#define DRIVER_DESC "USB Video Class driver" 33c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 34310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartunsigned int uvc_clock_param = CLOCK_MONOTONIC; 350fbd8ee6de6ac3d0b93c96da848c5bc3ccc1dc83Laurent Pinchartunsigned int uvc_no_drop_param; 3673de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchartstatic unsigned int uvc_quirks_param = -1; 37c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartunsigned int uvc_trace_param; 38b232a012adfea9f535702e8296ea6b76e691f436Laurent Pinchartunsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT; 39c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 40c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 412c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * Video formats 42c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 43c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 44c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct uvc_format_desc uvc_fmts[] = { 45c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 46c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "YUV 4:2:2 (YUYV)", 47c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_YUY2, 48c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_YUYV, 49c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 50c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 5168f194e027ecfbbc8d5515bc40787e542eed59e9Daniel Ritz .name = "YUV 4:2:2 (YUYV)", 5268f194e027ecfbbc8d5515bc40787e542eed59e9Daniel Ritz .guid = UVC_GUID_FORMAT_YUY2_ISIGHT, 5368f194e027ecfbbc8d5515bc40787e542eed59e9Daniel Ritz .fcc = V4L2_PIX_FMT_YUYV, 5468f194e027ecfbbc8d5515bc40787e542eed59e9Daniel Ritz }, 5568f194e027ecfbbc8d5515bc40787e542eed59e9Daniel Ritz { 56c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "YUV 4:2:0 (NV12)", 57c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_NV12, 58c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_NV12, 59c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 60c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 61c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "MJPEG", 62c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_MJPEG, 63c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_MJPEG, 64c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 65c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 66c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "YVU 4:2:0 (YV12)", 67c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_YV12, 68c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_YVU420, 69c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 70c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 71c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "YUV 4:2:0 (I420)", 72c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_I420, 73c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_YUV420, 74c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 75c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 767225a1dcc38f28fcc6178258b2072d12742f68d9Hans de Goede .name = "YUV 4:2:0 (M420)", 777225a1dcc38f28fcc6178258b2072d12742f68d9Hans de Goede .guid = UVC_GUID_FORMAT_M420, 787225a1dcc38f28fcc6178258b2072d12742f68d9Hans de Goede .fcc = V4L2_PIX_FMT_M420, 797225a1dcc38f28fcc6178258b2072d12742f68d9Hans de Goede }, 807225a1dcc38f28fcc6178258b2072d12742f68d9Hans de Goede { 81c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "YUV 4:2:2 (UYVY)", 82c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_UYVY, 83c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_UYVY, 84c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 85c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 86ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .name = "Greyscale 8-bit (Y800)", 87c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_Y800, 88c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_GREY, 89c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 90c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { 91ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .name = "Greyscale 8-bit (Y8 )", 92ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .guid = UVC_GUID_FORMAT_Y8, 93ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .fcc = V4L2_PIX_FMT_GREY, 94ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel }, 95ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel { 96ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .name = "Greyscale 10-bit (Y10 )", 97ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .guid = UVC_GUID_FORMAT_Y10, 98ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .fcc = V4L2_PIX_FMT_Y10, 99ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel }, 100ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel { 101ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .name = "Greyscale 12-bit (Y12 )", 102ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .guid = UVC_GUID_FORMAT_Y12, 103ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .fcc = V4L2_PIX_FMT_Y12, 104ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel }, 105ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel { 106ca47e7192c314193c13942dec45f4070f57ab5a6Stefan Muenzel .name = "Greyscale 16-bit (Y16 )", 10761421206833a4085d9bdf35b2b84cd9a67dfdfacLaurent Pinchart .guid = UVC_GUID_FORMAT_Y16, 10861421206833a4085d9bdf35b2b84cd9a67dfdfacLaurent Pinchart .fcc = V4L2_PIX_FMT_Y16, 10961421206833a4085d9bdf35b2b84cd9a67dfdfacLaurent Pinchart }, 11061421206833a4085d9bdf35b2b84cd9a67dfdfacLaurent Pinchart { 111e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .name = "BGGR Bayer (BY8 )", 112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_BY8, 113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_SBGGR8, 114c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 115507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart { 116e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .name = "BGGR Bayer (BA81)", 117e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .guid = UVC_GUID_FORMAT_BA81, 118e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .fcc = V4L2_PIX_FMT_SBGGR8, 119e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier }, 120e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier { 121e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .name = "GBRG Bayer (GBRG)", 122e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .guid = UVC_GUID_FORMAT_GBRG, 123e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .fcc = V4L2_PIX_FMT_SGBRG8, 124e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier }, 125e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier { 126e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .name = "GRBG Bayer (GRBG)", 127e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .guid = UVC_GUID_FORMAT_GRBG, 128e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .fcc = V4L2_PIX_FMT_SGRBG8, 129e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier }, 130e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier { 131e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .name = "RGGB Bayer (RGGB)", 132e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .guid = UVC_GUID_FORMAT_RGGB, 133e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier .fcc = V4L2_PIX_FMT_SRGGB8, 134e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier }, 135e72ed08e66d044ed74c485da68ca809bebf99739Edgar Thier { 136507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .name = "RGB565", 137507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .guid = UVC_GUID_FORMAT_RGBP, 138507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .fcc = V4L2_PIX_FMT_RGB565, 139507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart }, 14025ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky { 14125ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .name = "H.264", 14225ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .guid = UVC_GUID_FORMAT_H264, 14325ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .fcc = V4L2_PIX_FMT_H264, 14425ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky }, 145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 146c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 147c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Utility functions 149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 150c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 151c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstruct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, 152c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u8 epaddr) 153c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 154c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep; 155c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 156c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 157c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < alts->desc.bNumEndpoints; ++i) { 158c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep = &alts->endpoint[i]; 159c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->desc.bEndpointAddress == epaddr) 160c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ep; 161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 162c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 164c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 166c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16]) 167c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 168c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int len = ARRAY_SIZE(uvc_fmts); 169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 171c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < len; ++i) { 172c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (memcmp(guid, uvc_fmts[i].guid, 16) == 0) 173c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return &uvc_fmts[i]; 174c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 175c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 176c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 177c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 178c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 179c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic __u32 uvc_colorspace(const __u8 primaries) 180c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 181c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart static const __u8 colorprimaries[] = { 182c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 0, 183c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SRGB, 184c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_470_SYSTEM_M, 185c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_470_SYSTEM_BG, 186c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SMPTE170M, 187c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SMPTE240M, 188c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }; 189c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 190c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (primaries < ARRAY_SIZE(colorprimaries)) 191c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return colorprimaries[primaries]; 192c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 193c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 194c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 195c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 196c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Simplify a fraction using a simple continued fraction decomposition. The 197c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * idea here is to convert fractions such as 333333/10000000 to 1/30 using 198c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 32 bit arithmetic only. The algorithm is not perfect and relies upon two 199c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * arbitrary parameters to remove non-significative terms from the simple 200c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * continued fraction decomposition. Using 8 and 333 for n_terms and threshold 201c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * respectively seems to give nice results. 202c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 203c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartvoid uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, 204c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int n_terms, unsigned int threshold) 205c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 206c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t *an; 207c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t x, y, r; 208c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n; 209c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 210c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart an = kmalloc(n_terms * sizeof *an, GFP_KERNEL); 211c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (an == NULL) 212c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return; 213c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 214c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Convert the fraction to a simple continued fraction. See 215c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * http://mathforum.org/dr.math/faq/faq.fractions.html 216c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Stop if the current term is bigger than or equal to the given 217c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * threshold. 218c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 219c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = *numerator; 220c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = *denominator; 221c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 222c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (n = 0; n < n_terms && y != 0; ++n) { 223c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart an[n] = x / y; 224c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (an[n] >= threshold) { 225c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (n < 2) 226c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n++; 227c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 228c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 229c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 230c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart r = x - an[n] * y; 231c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = y; 232c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = r; 233c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 234c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 235c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Expand the simple continued fraction back to an integer fraction. */ 236c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = 0; 237c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = 1; 238c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 239c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = n; i > 0; --i) { 240c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart r = y; 241c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = an[i-1] * y + x; 242c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = r; 243c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 244c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 245c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *numerator = y; 246c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *denominator = x; 247c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(an); 248c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 249c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 250c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Convert a fraction to a frame interval in 100ns multiples. The idea here is 251c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * to compute numerator / denominator * 10000000 using 32 bit fixed point 252c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * arithmetic only. 253c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 254c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartuint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator) 255c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 256c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t multiplier; 257c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 258c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Saturate the result if the operation would overflow. */ 259c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (denominator == 0 || 260c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart numerator/denominator >= ((uint32_t)-1)/10000000) 261c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return (uint32_t)-1; 262c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 263c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Divide both the denominator and the multiplier by two until 264c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * numerator * multiplier doesn't overflow. If anyone knows a better 265c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * algorithm please let me know. 266c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 267c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart multiplier = 10000000; 268c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (numerator > ((uint32_t)-1)/multiplier) { 269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart multiplier /= 2; 270c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart denominator /= 2; 271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 272c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 273c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return denominator ? numerator * multiplier / denominator : 0; 274c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 275c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 276c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 277c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Terminal and unit management 278c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 279c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2804ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchartstruct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) 281c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 282c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity; 283c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 284c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry(entity, &dev->entities, list) { 285c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (entity->id == id) 286c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return entity; 287c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 288c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 289c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 290c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 291c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 292c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, 293c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int id, struct uvc_entity *entity) 294c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 295c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 296c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 297c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (entity == NULL) 298c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart entity = list_entry(&dev->entities, struct uvc_entity, list); 299c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 300c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry_continue(entity, &dev->entities, list) { 3018ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart for (i = 0; i < entity->bNrInPins; ++i) 3028ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->baSourceID[i] == id) 303c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return entity; 304c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 305c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 306c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 307c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 308c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 3098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) 3108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 3118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 3128e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 3138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 3148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream->header.bTerminalLink == id) 3158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return stream; 3168e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 3178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 3188e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return NULL; 3198e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 3208e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 321c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 3228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Descriptors parsing 323c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 324c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 325c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_format(struct uvc_device *dev, 326c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_streaming *streaming, struct uvc_format *format, 327c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u32 **intervals, unsigned char *buffer, int buflen) 328c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 329c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf = streaming->intf; 330c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = intf->cur_altsetting; 331c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_format_desc *fmtdesc; 332c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_frame *frame; 333c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *start = buffer; 334c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int interval; 335c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n; 336c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u8 ftype; 337c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 338c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->type = buffer[2]; 339c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->index = buffer[3]; 340c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 341c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 342b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 343b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 344b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; 345233548a2fd934a0220db8b1521c0bc88c82e5e53Laurent Pinchart if (buflen < n) { 346b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 347c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 348c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 349c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 350c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 351c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 352c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 353c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Find the format descriptor from its GUID. */ 354c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart fmtdesc = uvc_format_by_guid(&buffer[5]); 355c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 356c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (fmtdesc != NULL) { 357d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, fmtdesc->name, 358c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof format->name); 359c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = fmtdesc->fcc; 360c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 36136bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart uvc_printk(KERN_INFO, "Unknown video format %pUl\n", 36236bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart &buffer[5]); 36336bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart snprintf(format->name, sizeof(format->name), "%pUl\n", 36436bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart &buffer[5]); 365c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = 0; 366c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 367c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 368c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = buffer[21]; 369b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { 370b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_UNCOMPRESSED; 371c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 372b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_FRAME_BASED; 373c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[27]) 374c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED; 375c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 376c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 377c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 378b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 379c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 11) { 380b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 381c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 382c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 383c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 384c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 385c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 386c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 387d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "MJPEG", sizeof format->name); 388c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = V4L2_PIX_FMT_MJPEG; 389c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED; 390c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = 0; 391b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_MJPEG; 392c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 394b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 395c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 9) { 396b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 397c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 398c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 399c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 400c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 401c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 402c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 403c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[8] & 0x7f) { 404c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 0: 405d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "SD-DV", sizeof format->name); 406c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 407c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 1: 408d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "SDL-DV", sizeof format->name); 409c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 410c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 2: 411d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "HD-DV", sizeof format->name); 412c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 413c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 414b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 415c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d: unknown DV format %u\n", 416c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 417c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, buffer[8]); 418c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 419c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 420c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 421d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz", 422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof format->name); 423c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 424c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = V4L2_PIX_FMT_DV; 425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; 426c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = 0; 427c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ftype = 0; 428c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 429c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Create a dummy frame descriptor. */ 430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame = &format->frame[0]; 431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memset(&format->frame[0], 0, sizeof format->frame[0]); 432c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = 1; 433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 1; 434c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwFrameInterval = *intervals; 435c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *(*intervals)++ = 1; 436c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->nframes = 1; 437c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 438c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 439b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MPEG2TS: 440b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_STREAM_BASED: 441c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Not supported yet. */ 442c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 443b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 444c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d unsupported format %u\n", 445c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber, 446c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[2]); 447c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 448c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 449c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 450c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name); 451c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 452c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 453c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 454c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 455c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the frame descriptors. Only uncompressed, MJPEG and frame 456c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * based formats have frame descriptors. 457c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 458c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 459c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == ftype) { 460078f8947926732a526fb280c0f3a8920bf173b9cLaurent Pinchart frame = &format->frame[format->nframes]; 461b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (ftype != UVC_VS_FRAME_FRAME_BASED) 462c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen > 25 ? buffer[25] : 0; 463c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 464c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen > 21 ? buffer[21] : 0; 465c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 466c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = n ? n : 3; 467c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 468c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 26 + 4*n) { 469b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 470c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FRAME error\n", dev->udev->devnum, 471c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 472c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 473c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 474c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 475c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIndex = buffer[3]; 476c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bmCapabilities = buffer[4]; 4779bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->wWidth = get_unaligned_le16(&buffer[5]); 4789bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->wHeight = get_unaligned_le16(&buffer[7]); 4799bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); 4809bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); 481b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (ftype != UVC_VS_FRAME_FRAME_BASED) { 482c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = 4839bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[17]); 484c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 4859bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[21]); 486c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = buffer[25]; 487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 488c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = 0; 489c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 4909bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[17]); 491c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = buffer[21]; 492c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 493c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwFrameInterval = *intervals; 494c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 495c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Several UVC chipsets screw up dwMaxVideoFrameBufferSize 496c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * completely. Observed behaviours range from setting the 4972c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * value to 1.1x the actual frame size to hardwiring the 498c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 16 low bits to 0. This results in a higher than necessary 499c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * memory usage as well as a wrong image size information. For 500c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * uncompressed formats this can be fixed by computing the 501c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * value from the frame size. 502c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 503c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) 504c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = format->bpp 505c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * frame->wWidth * frame->wHeight / 8; 506c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 507c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Some bogus devices report dwMinFrameInterval equal to 508c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * dwMaxFrameInterval and have dwFrameIntervalStep set to 509c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * zero. Setting all null intervals to 1 fixes the problem and 5102c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * some other divisions by zero that could happen. 511c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 512c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < n; ++i) { 5139bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich interval = get_unaligned_le32(&buffer[26+4*i]); 514c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *(*intervals)++ = interval ? interval : 1; 515c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 516c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 517c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure that the default frame interval stays between 518c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * the boundaries. 519c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 520c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n -= frame->bFrameIntervalType ? 1 : 2; 521c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 522c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart min(frame->dwFrameInterval[n], 523c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart max(frame->dwFrameInterval[0], 524c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval)); 525c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 52686d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { 52786d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->bFrameIntervalType = 1; 52886d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->dwFrameInterval[0] = 52986d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->dwDefaultFrameInterval; 53086d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart } 53186d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart 532c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n", 533c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->wWidth, frame->wHeight, 534c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10000000/frame->dwDefaultFrameInterval, 535c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart (100000000/frame->dwDefaultFrameInterval)%10); 536c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 537078f8947926732a526fb280c0f3a8920bf173b9cLaurent Pinchart format->nframes++; 538c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 539c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 540c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 541c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 542c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 543c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { 544c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 545c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 546c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 547c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 548c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 549c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == UVC_VS_COLORFORMAT) { 550c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 6) { 551b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 552c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d COLORFORMAT error\n", 553c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 554c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 555c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 556c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 557c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 558c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->colorspace = uvc_colorspace(buffer[3]); 559c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 560c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 561c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 562c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 563c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 564c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return buffer - start; 565c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 566c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 567c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_streaming(struct uvc_device *dev, 568c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf) 569c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 570c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_streaming *streaming = NULL; 571c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_format *format; 572c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_frame *frame; 573c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = &intf->altsetting[0]; 574c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned char *_buffer, *buffer = alts->extra; 575c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int _buflen, buflen = alts->extralen; 576c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int nformats = 0, nframes = 0, nintervals = 0; 577c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int size, i, n, p; 578c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u32 *interval; 579c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u16 psize; 580c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret = -EINVAL; 581c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 582c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass 583b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart != UVC_SC_VIDEOSTREAMING) { 584c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " 585c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "video streaming interface\n", dev->udev->devnum, 586c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->altsetting[0].desc.bInterfaceNumber); 587c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 588c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 589c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 590c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { 591c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already " 592c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "claimed\n", dev->udev->devnum, 593c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->altsetting[0].desc.bInterfaceNumber); 594c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 595c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 596c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 597c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming = kzalloc(sizeof *streaming, GFP_KERNEL); 598c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (streaming == NULL) { 599c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_driver_release_interface(&uvc_driver.driver, intf); 600c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 601c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 602c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 603c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart mutex_init(&streaming->mutex); 60435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart streaming->dev = dev; 605c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->intf = usb_get_intf(intf); 606c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; 607c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 608c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* The Pico iMage webcam has its class-specific interface descriptors 609c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * after the endpoint descriptors. 610c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 611c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen == 0) { 612c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < alts->desc.bNumEndpoints; ++i) { 613c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep = &alts->endpoint[i]; 614c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 615c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->extralen == 0) 616c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 617c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 618c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->extralen > 2 && 619c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep->extra[1] == USB_DT_CS_INTERFACE) { 620c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "trying extra data " 621c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "from endpoint %u.\n", i); 622c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer = alts->endpoint[i].extra; 623c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen = alts->endpoint[i].extralen; 624c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 625c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 626c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 627c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 628c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 629c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Skip the standard interface descriptors. */ 630c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { 631c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 632c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 633c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 634c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 635c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen <= 2) { 636c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming " 637c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface descriptors found.\n"); 638c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 639c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 640c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 641c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the header descriptor. */ 642ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart switch (buffer[2]) { 643b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_OUTPUT_HEADER: 644ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 645ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart size = 9; 646ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 647ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 648b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_INPUT_HEADER: 649ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 650ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart size = 13; 651ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 652ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 653ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart default: 654c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 655ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart "%d HEADER descriptor not found.\n", dev->udev->devnum, 656ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart alts->desc.bInterfaceNumber); 657c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 658ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 659c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 660ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart p = buflen >= 4 ? buffer[3] : 0; 661ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart n = buflen >= size ? buffer[size-1] : 0; 662ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 663ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart if (buflen < size + p*n) { 664ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 665ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart "interface %d HEADER descriptor is invalid.\n", 666ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber); 667ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart goto error; 668ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 669c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 670ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bNumFormats = p; 671ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bEndpointAddress = buffer[6]; 672b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (buffer[2] == UVC_VS_INPUT_HEADER) { 673c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bmInfo = buffer[7]; 674c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTerminalLink = buffer[8]; 675c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bStillCaptureMethod = buffer[9]; 676c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTriggerSupport = buffer[10]; 677c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTriggerUsage = buffer[11]; 678c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 679ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bTerminalLink = buffer[7]; 680ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 681ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bControlSize = n; 682ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 6830b21d55f8904ff3d52262e91867f9eb2c0b472f3Julia Lawall streaming->header.bmaControls = kmemdup(&buffer[size], p * n, 6840b21d55f8904ff3d52262e91867f9eb2c0b472f3Julia Lawall GFP_KERNEL); 685ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart if (streaming->header.bmaControls == NULL) { 686ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart ret = -ENOMEM; 687c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 688c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 689c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 690c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 691c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 692c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 693c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buffer = buffer; 694c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buflen = buflen; 695c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 696c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Count the format and frame descriptors. */ 697042e143e8b21dca7c84e32c2e647980cb9101224Laurent Pinchart while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { 698c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (_buffer[2]) { 699b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 700b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 701b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 702c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nformats++; 703c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 704c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 705b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 706c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* DV format has no frame descriptor. We will create a 707c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * dummy frame descriptor with a dummy frame interval. 708c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 709c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nformats++; 710c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 711c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals++; 712c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 713c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 714b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MPEG2TS: 715b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_STREAM_BASED: 716c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 717c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT %u is not supported.\n", 718c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 719c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, _buffer[2]); 720c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 721c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 722b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_UNCOMPRESSED: 723b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_MJPEG: 724c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 725c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (_buflen > 25) 726c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals += _buffer[25] ? _buffer[25] : 3; 727c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 728c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 729b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_FRAME_BASED: 730c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 731c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (_buflen > 21) 732c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals += _buffer[21] ? _buffer[21] : 3; 733c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 734c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 735c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 736c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buflen -= _buffer[0]; 737c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buffer += _buffer[0]; 738c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 739c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 740c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (nformats == 0) { 741c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 742c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "%d has no supported formats defined.\n", 743c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber); 744c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 745c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 746c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 747c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart size = nformats * sizeof *format + nframes * sizeof *frame 748c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart + nintervals * sizeof *interval; 749c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format = kzalloc(size, GFP_KERNEL); 750c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (format == NULL) { 751c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ret = -ENOMEM; 752c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 753c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 754c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 755c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame = (struct uvc_frame *)&format[nformats]; 756c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart interval = (__u32 *)&frame[nframes]; 757c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 758c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->format = format; 759c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->nformats = nformats; 760c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 761c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the format descriptors. */ 762042e143e8b21dca7c84e32c2e647980cb9101224Laurent Pinchart while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { 763c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 764b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 765b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 766b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 767b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 768c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->frame = frame; 769c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ret = uvc_parse_format(dev, streaming, format, 770c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart &interval, buffer, buflen); 771c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ret < 0) 772c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 773c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 774c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame += format->nframes; 775c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format++; 776c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 777c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= ret; 778c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += ret; 779c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 780c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 781c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 782c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 783c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 784c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 785c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 786c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 787c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 788c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 789c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen) 790c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 791c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart "%d has %u bytes of trailing descriptor garbage.\n", 792c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); 793c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart 794c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the alternate settings to find the maximum bandwidth. */ 795c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < intf->num_altsetting; ++i) { 796c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep; 797c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts = &intf->altsetting[i]; 798c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep = uvc_find_endpoint(alts, 799c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bEndpointAddress); 800c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep == NULL) 801c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 802c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 803c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart psize = le16_to_cpu(ep->desc.wMaxPacketSize); 804c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); 805c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (psize > streaming->maxpsize) 806c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->maxpsize = psize; 807c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 808c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 80935f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_add_tail(&streaming->list, &dev->streams); 810c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 811c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 812c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pincharterror: 813c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_driver_release_interface(&uvc_driver.driver, intf); 814c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_put_intf(intf); 815c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming->format); 816c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming->header.bmaControls); 817c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming); 818c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ret; 819c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 820c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 8218ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchartstatic struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, 8228ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int num_pads, unsigned int extra_size) 8238ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart{ 8248ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart struct uvc_entity *entity; 8258ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int num_inputs; 8268ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int size; 8274ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart unsigned int i; 8288ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8294ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart extra_size = ALIGN(extra_size, sizeof(*entity->pads)); 8308ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; 8314ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads 8324ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart + num_inputs; 8338ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity = kzalloc(size, GFP_KERNEL); 8348ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity == NULL) 8358ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart return NULL; 8368ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8378ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->id = id; 8388ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->type = type; 8398ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8404ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->num_links = 0; 8414ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->num_pads = num_pads; 8424ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads = ((void *)(entity + 1)) + extra_size; 8434ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 8444ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart for (i = 0; i < num_inputs; ++i) 8454ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads[i].flags = MEDIA_PAD_FL_SINK; 8464ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart if (!UVC_ENTITY_IS_OTERM(entity)) 8474ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; 8484ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 8498ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->bNrInPins = num_inputs; 8504ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->baSourceID = (__u8 *)(&entity->pads[num_pads]); 8518ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8528ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart return entity; 8538ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart} 8548ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 855c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Parse vendor-specific extensions. */ 856c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_vendor_control(struct uvc_device *dev, 857c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *buffer, int buflen) 858c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 859c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = dev->udev; 860c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 861c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *unit; 862c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int n, p; 863c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int handled = 0; 864c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 865c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { 866c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 0x046d: /* Logitech */ 867c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[1] != 0x41 || buffer[2] != 0x01) 868c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 869c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 870c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech implements several vendor specific functions 871c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * through vendor specific extension units (LXU). 872c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 873c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * The LXU descriptors are similar to XU descriptors 874c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * (see "USB Device Video Class for Video Devices", section 875c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 3.7.2.6 "Extension Unit Descriptor") with the following 876c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * differences: 877c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 878c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 879c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 0 bLength 1 Number 880c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Size of this descriptor, in bytes: 24+p+n*2 881c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 882c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 23+p+n bmControlsType N Bitmap 883c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Individual bits in the set are defined: 884c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 0: Absolute 885c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 1: Relative 886c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 887c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * This bitset is mapped exactly the same as bmControls. 888c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 889c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 23+p+n*2 bReserved 1 Boolean 890c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 891c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 24+p+n*2 iExtension 1 Index 892c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Index of a string descriptor that describes this 893c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * extension unit. 894c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 895c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 896c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 22 ? buffer[21] : 0; 897c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 25 + p ? buffer[22+p] : 0; 898c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 899c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 25 + p + 2*n) { 900c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 901c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d EXTENSION_UNIT error\n", 902c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 903c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 904c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 905c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 9068ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3], 9078ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart p + 1, 2*n); 908c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 909c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 910c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 911c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); 912c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bNumControls = buffer[20]; 9138ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[22], p); 914c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bControlSize = buffer[22+p]; 9158ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControls = (__u8 *)unit + sizeof(*unit); 9168ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControlsType = (__u8 *)unit + sizeof(*unit) 9178ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart + n; 918c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); 919c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 920c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[24+p+2*n] != 0) 921c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[24+p+2*n], unit->name, 922c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 923c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 924c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Extension %u", buffer[3]); 925c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 926c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 927c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart handled = 1; 928c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 929c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 930c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 931c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return handled; 932c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 933c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 934c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_standard_control(struct uvc_device *dev, 935c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *buffer, int buflen) 936c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 937c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = dev->udev; 938c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *unit, *term; 939c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf; 940c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 941c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n, p, len; 942c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u16 type; 943c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 944c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 945b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_HEADER: 946c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 12 ? buffer[11] : 0; 947c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 948daf41ac2c4b5b2e663079ccc58b8d6a70a3c111bOliver Neukum if (buflen < 12 + n) { 949c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 950c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d HEADER error\n", udev->devnum, 951c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 952c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 953c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 954c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 9559bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich dev->uvc_version = get_unaligned_le16(&buffer[3]); 9569bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich dev->clock_frequency = get_unaligned_le32(&buffer[7]); 957c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 958c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse all USB Video Streaming interfaces. */ 959c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < n; ++i) { 960c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf = usb_ifnum_to_if(udev, buffer[12+i]); 961c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (intf == NULL) { 962c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d " 963c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d doesn't exists\n", 964c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, i); 965c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 966c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 967c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 968c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_parse_streaming(dev, intf); 969c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 970c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 971c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 972b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_INPUT_TERMINAL: 973c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 8) { 974c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 975c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL error\n", 976c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 977c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 978c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 979c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 980c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure the terminal type MSB is not null, otherwise it 981c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * could be confused with a unit. 982c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 9839bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich type = get_unaligned_le16(&buffer[4]); 984c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((type & 0xff00) == 0) { 985c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 986c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL %d has invalid " 987c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "type 0x%04x, skipping\n", udev->devnum, 988c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, 989c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[3], type); 990c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 991c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 992c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 993c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = 0; 994c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = 0; 995c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 8; 996c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 997b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (type == UVC_ITT_CAMERA) { 998c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 15 ? buffer[14] : 0; 999c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 15; 1000c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1001b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { 1002c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 9 ? buffer[8] : 0; 1003c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 10 + n ? buffer[9+n] : 0; 1004c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 10; 1005c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1006c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1007c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < len + n + p) { 1008c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1009c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL error\n", 1010c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1011c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1012c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1013c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10148ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3], 10158ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 1, n + p); 1016c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL) 1017c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1018c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1019b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { 1020c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.bControlSize = n; 1021c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.bmControls = (__u8 *)term + sizeof *term; 1022c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wObjectiveFocalLengthMin = 10239bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[8]); 1024c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wObjectiveFocalLengthMax = 10259bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[10]); 1026c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wOcularFocalLength = 10279bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[12]); 1028c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->camera.bmControls, &buffer[15], n); 1029b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart } else if (UVC_ENTITY_TYPE(term) == 1030b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_ITT_MEDIA_TRANSPORT_INPUT) { 1031c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bControlSize = n; 1032c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bmControls = (__u8 *)term + sizeof *term; 1033c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bTransportModeSize = p; 1034c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bmTransportModes = (__u8 *)term 1035c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart + sizeof *term + n; 1036c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->media.bmControls, &buffer[9], n); 1037c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->media.bmTransportModes, &buffer[10+n], p); 1038c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1039c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1040c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[7] != 0) 1041c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[7], term->name, 1042c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof term->name); 1043b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) 1044c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Camera %u", buffer[3]); 1045b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) 1046c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Media %u", buffer[3]); 1047c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1048c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Input %u", buffer[3]); 1049c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1050c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&term->list, &dev->entities); 1051c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1052c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1053b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_OUTPUT_TERMINAL: 1054c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 9) { 1055c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1056c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d OUTPUT_TERMINAL error\n", 1057c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1058c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1059c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1060c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1061c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure the terminal type MSB is not null, otherwise it 1062c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * could be confused with a unit. 1063c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 10649bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich type = get_unaligned_le16(&buffer[4]); 1065c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((type & 0xff00) == 0) { 1066c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1067c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d OUTPUT_TERMINAL %d has invalid " 1068c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "type 0x%04x, skipping\n", udev->devnum, 1069c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, buffer[3], type); 1070c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1071c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1072c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10738ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3], 10748ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 1, 0); 1075c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL) 1076c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1077c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10788ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(term->baSourceID, &buffer[7], 1); 1079c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1080c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[8] != 0) 1081c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[8], term->name, 1082c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof term->name); 1083c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1084c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Output %u", buffer[3]); 1085c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1086c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&term->list, &dev->entities); 1087c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1088c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1089b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1090c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 5 ? buffer[4] : 0; 1091c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1092c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 5 || buflen < 6 + p) { 1093c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1094c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d SELECTOR_UNIT error\n", 1095c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1096c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1097c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1098c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10998ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0); 1100c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1101c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1102c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11038ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[5], p); 1104c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1105c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[5+p] != 0) 1106c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[5+p], unit->name, 1107c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1108c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1109c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Selector %u", buffer[3]); 1110c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1111c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1114b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 1115c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 8 ? buffer[7] : 0; 1116c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = dev->uvc_version >= 0x0110 ? 10 : 9; 1117c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1118c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < p + n) { 1119c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1120c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d PROCESSING_UNIT error\n", 1121c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1122c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1123c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1124c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11258ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n); 1126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1127c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11298ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[4], 1); 1130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.wMaxMultiplier = 11319bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[5]); 1132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bControlSize = buffer[7]; 1133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bmControls = (__u8 *)unit + sizeof *unit; 1134c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->processing.bmControls, &buffer[8], n); 1135c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (dev->uvc_version >= 0x0110) 1136c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bmVideoStandards = buffer[9+n]; 1137c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1138c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[8+n] != 0) 1139c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[8+n], unit->name, 1140c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1141c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1142c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Processing %u", buffer[3]); 1143c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1144c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1146c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1147b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 22 ? buffer[21] : 0; 1149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 24 + p ? buffer[22+p] : 0; 1150c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1151c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 24 + p + n) { 1152c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1153c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d EXTENSION_UNIT error\n", 1154c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1155c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1156c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1157c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11588ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n); 1159c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1160c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1162c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); 1163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bNumControls = buffer[20]; 11648ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[22], p); 1165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bControlSize = buffer[22+p]; 11668ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControls = (__u8 *)unit + sizeof *unit; 1167c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.bmControls, &buffer[23+p], n); 1168c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[23+p+n] != 0) 1170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[23+p+n], unit->name, 1171c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1172c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1173c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Extension %u", buffer[3]); 1174c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1175c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1176c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1177c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1178c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 1179c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE " 1180c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "descriptor (%u)\n", buffer[2]); 1181c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1182c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1183c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1184c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1185c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1186c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1187c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_control(struct uvc_device *dev) 1188c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1189c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 1190c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned char *buffer = alts->extra; 1191c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int buflen = alts->extralen; 1192c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret; 1193c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1194c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the default alternate setting only, as the UVC specification 1195c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * defines a single alternate setting, the default alternate setting 1196c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * zero. 1197c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1198c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1199c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (buflen > 2) { 1200c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_parse_vendor_control(dev, buffer, buflen) || 1201c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[1] != USB_DT_CS_INTERFACE) 1202c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto next_descriptor; 1203c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1204c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0) 1205c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ret; 1206c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1207c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartnext_descriptor: 1208c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 1209c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 1210c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1211c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1212538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart /* Check if the optional status endpoint is present. Built-in iSight 1213538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * webcams have an interrupt endpoint but spit proprietary data that 1214538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * don't conform to the UVC status endpoint messages. Don't try to 1215538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * handle the interrupt endpoint for those cameras. 1216538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart */ 1217538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart if (alts->desc.bNumEndpoints == 1 && 1218538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) { 1219c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep = &alts->endpoint[0]; 1220c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_endpoint_descriptor *desc = &ep->desc; 1221c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1222c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (usb_endpoint_is_int_in(desc) && 1223c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(desc->wMaxPacketSize) >= 8 && 1224c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart desc->bInterval != 0) { 1225c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint " 1226c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "(addr %02x).\n", desc->bEndpointAddress); 1227c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->int_ep = ep; 1228c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1229c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1230c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1231c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1232c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1233c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1234c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 12358e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * UVC device scan 1236c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1237c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1238c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 1239c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Scan the UVC descriptors to locate a chain starting at an Output Terminal 1240c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * and containing the following units: 1241c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 12428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * - one or more Output Terminals (USB Streaming or Display) 1243c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero or one Processing Unit 12448e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * - zero, one or more single-input Selector Units 1245c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero or one multiple-input Selector Units, provided all inputs are 1246c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * connected to input terminals 1247c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero, one or mode single-input Extension Units 12482c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * - one or more Input Terminals (Camera, External or USB Streaming) 1249c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 12508e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * The terminal and units must match on of the following structures: 12518e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) 12538e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... 12548e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) 12558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12568e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * +---------+ +---------+ -> OTT_*(0) 12578e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... 12588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * +---------+ +---------+ -> OTT_*(n) 12598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * The Processing Unit and Extension Units can be in any order. Additional 12618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Extension Units connected to the main chain as single-unit branches are 12628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * also supported. Single-input Selector Units are ignored. 1263c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 12648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_entity(struct uvc_video_chain *chain, 1265c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity) 1266c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1267c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (UVC_ENTITY_TYPE(entity)) { 1268b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1270c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- XU %d", entity->id); 1271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12728ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins != 1) { 1273c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more " 1274c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "than 1 input pin.\n", entity->id); 1275c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1276c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1277c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1278c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1279c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1280b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 1281c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1282c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- PU %d", entity->id); 1283c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain->processing != NULL) { 1285c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found multiple " 1286c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "Processing Units in chain.\n"); 1287c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1288c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1289c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->processing = entity; 1291c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1292c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1293b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1294c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1295c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- SU %d", entity->id); 1296c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1297c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Single-input selector units are ignored. */ 12988ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins == 1) 1299c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1300c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain->selector != NULL) { 1302c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " 1303c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "Units in chain.\n"); 1304c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1305c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1306c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->selector = entity; 1308c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1309c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1310b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_VENDOR_SPECIFIC: 1311b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_CAMERA: 1312b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_MEDIA_TRANSPORT_INPUT: 1313c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1314c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- IT %d\n", entity->id); 1315c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1316c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1317c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13184093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 13194093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_DISPLAY: 13204093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 13214093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13224093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart printk(" OT %d", entity->id); 13234093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart 13244093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart break; 13254093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart 1326b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_TT_STREAMING: 13274057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (UVC_ENTITY_IS_ITERM(entity)) { 13284057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13294057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart printk(" <- IT %d\n", entity->id); 13304057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } else { 13314057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13324057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart printk(" OT %d", entity->id); 1333ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 1334ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 1335ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 1336ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 1337c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 1338c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type " 1339c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity)); 1340c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1341c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1342c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13436241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&entity->chain, &chain->entities); 1344c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1345c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1346c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13478e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_forward(struct uvc_video_chain *chain, 1348c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity, struct uvc_entity *prev) 1349c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1350c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *forward; 1351c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int found; 1352c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1353c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Forward scan */ 1354c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart forward = NULL; 1355c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart found = 0; 1356c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1357c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (1) { 13588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart forward = uvc_entity_by_reference(chain->dev, entity->id, 1359c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart forward); 1360c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (forward == NULL) 1361c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 13628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (forward == prev) 1363c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1364c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart switch (UVC_ENTITY_TYPE(forward)) { 13668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_VC_EXTENSION_UNIT: 13678ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (forward->bNrInPins != 1) { 13688e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Extension unit %d " 13698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "has more than 1 input pin.\n", 13708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart entity->id); 13718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 13728e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1373c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13746241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&forward->chain, &chain->entities); 13758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) { 13768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (!found) 13778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" (->"); 13788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 13798e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" XU %d", forward->id); 13808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart found = 1; 13818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 13828e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart break; 13838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 13848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 13858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_DISPLAY: 13868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 13878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_TT_STREAMING: 13888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (UVC_ENTITY_IS_ITERM(forward)) { 13898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Unsupported input " 13908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "terminal %u.\n", forward->id); 13918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 13928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13946241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&forward->chain, &chain->entities); 13958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) { 13968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (!found) 13978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" (->"); 13988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 13998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" OT %d", forward->id); 14008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart found = 1; 14018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 14028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart break; 1403c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1404c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1405c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (found) 1406c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(")"); 1407c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1408c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1409c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1410c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_backward(struct uvc_video_chain *chain, 14124057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity **_entity) 1413c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 14144057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity *entity = *_entity; 1415c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *term; 14164057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart int id = -EINVAL, i; 1417c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1418c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (UVC_ENTITY_TYPE(entity)) { 1419b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1420b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 14218ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[0]; 1422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1423c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1424b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Single-input selector units are ignored. */ 14268ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins == 1) { 14278ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[0]; 1428c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1429c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1432c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- IT"); 1433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->selector = entity; 14358ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart for (i = 0; i < entity->bNrInPins; ++i) { 14368ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[i]; 14378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart term = uvc_entity_by_id(chain->dev, id); 1438c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { 1439c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " 1440c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "input %d isn't connected to an " 1441c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "input terminal\n", entity->id, i); 1442c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1443c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1444c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1445c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1446c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" %d", term->id); 1447c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14486241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&term->chain, &chain->entities); 14498e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_scan_chain_forward(chain, term, entity); 1450c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1451c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1452c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1453c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk("\n"); 1454c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1455c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart id = 0; 1456c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 14574057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14584057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_VENDOR_SPECIFIC: 14594057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_CAMERA: 14604057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_MEDIA_TRANSPORT_INPUT: 14614057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 14624057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_DISPLAY: 14634057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 14644057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_TT_STREAMING: 14658ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; 14664057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart break; 1467c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1468c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14694057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (id <= 0) { 14704057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart *_entity = NULL; 14714057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return id; 14724057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } 14734057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14744057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart entity = uvc_entity_by_id(chain->dev, id); 14754057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (entity == NULL) { 14764057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found reference to " 14774057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart "unknown entity %d.\n", id); 14784057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return -EINVAL; 14794057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } 14804057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14814057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart *_entity = entity; 14824057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return 0; 1483c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1484c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain(struct uvc_video_chain *chain, 14864057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity *term) 1487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1488c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity, *prev; 1489c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14904057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain:"); 1491ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 14924057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart entity = term; 14934057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart prev = NULL; 14948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 14954057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart while (entity != NULL) { 14964057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart /* Entity must not be part of an existing chain */ 14978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (entity->chain.next || entity->chain.prev) { 14988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found reference to " 14994057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart "entity %d already in chain.\n", entity->id); 15008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1501c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1502c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1503c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Process entity */ 15048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain_entity(chain, entity) < 0) 15058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1506c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1507c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Forward scan */ 15088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain_forward(chain, entity, prev) < 0) 15098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1510c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1511c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Backward scan */ 15124057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart prev = entity; 15134057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_scan_chain_backward(chain, &entity) < 0) 15144057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return -EINVAL; 1515c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1516c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 15188e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 15198e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15206241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchartstatic unsigned int uvc_print_terms(struct list_head *terms, u16 dir, 15216241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart char *buffer) 15228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 15238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_entity *term; 15248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart unsigned int nterms = 0; 15258e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart char *p = buffer; 15268e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(term, terms, chain) { 15286241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (!UVC_ENTITY_IS_TERM(term) || 15296241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart UVC_TERM_DIRECTION(term) != dir) 15306241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart continue; 15316241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart 15326241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (nterms) 15338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart p += sprintf(p, ","); 15346241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (++nterms >= 4) { 15356241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += sprintf(p, "..."); 15366241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart break; 15378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 15386241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += sprintf(p, "%u", term->id); 1539ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 1540c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15418e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return p - buffer; 15428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 15438e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15448e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic const char *uvc_print_chain(struct uvc_video_chain *chain) 15458e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 15468e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart static char buffer[43]; 15478e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart char *p = buffer; 15488e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15496241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p); 15508e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart p += sprintf(p, " -> "); 15516241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p); 15528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15538e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return buffer; 1554c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1555c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1556c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 155735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart * Scan the device for video chains and register video devices. 1558c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 15598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Chains are scanned starting at their output terminals and walked backwards. 1560c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 156135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchartstatic int uvc_scan_device(struct uvc_device *dev) 1562c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 15638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_video_chain *chain; 1564c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *term; 1565c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1566c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry(term, &dev->entities, list) { 15678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (!UVC_ENTITY_IS_OTERM(term)) 1568c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1569c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* If the terminal is already included in a chain, skip it. 15718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * This can happen for chains that have multiple output 15728e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * terminals, where all output terminals beside the first one 15738e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * will be inserted in the chain in forward scans. 15748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 15758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (term->chain.next || term->chain.prev) 1576c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1577c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain = kzalloc(sizeof(*chain), GFP_KERNEL); 15798e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain == NULL) 15808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -ENOMEM; 15818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15826241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart INIT_LIST_HEAD(&chain->entities); 15838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart mutex_init(&chain->ctrl_mutex); 15848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->dev = dev; 15850550513c7a559b4933c5e1d47fbd15d15f6078d5Laurent Pinchart v4l2_prio_init(&chain->prio); 15868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15878be8ec6ea58bd77338f6ffa2f6d2acfc88b835f4Laurent Pinchart term->flags |= UVC_ENTITY_FLAG_DEFAULT; 15888be8ec6ea58bd77338f6ffa2f6d2acfc88b835f4Laurent Pinchart 15898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain(chain, term) < 0) { 15908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart kfree(chain); 15918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 1592c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 15938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", 15958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_print_chain(chain)); 15968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_add_tail(&chain->list, &dev->chains); 1598c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1599c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 16008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (list_empty(&dev->chains)) { 1601c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "No valid video chain found.\n"); 1602c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1603c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1604c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1605c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1606c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1607c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 16088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 16098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Video device registration and unregistration 16108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 16118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 16128e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 1613716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Delete the UVC device. 1614716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1615716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Called by the kernel when the last reference to the uvc_device structure 1616716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * is released. 1617716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1618716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * As this function is called after or during disconnect(), all URBs have 1619716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * already been canceled by the USB core. There is no need to kill the 1620716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * interrupt URB manually. 1621716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1622716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_delete(struct uvc_device *dev) 1623716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1624716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct list_head *p, *n; 1625716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1626716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(dev->intf); 1627716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_dev(dev->udev); 1628716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1629716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_status_cleanup(dev); 1630716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_ctrl_cleanup_device(dev); 1631716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16325a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (dev->vdev.dev) 16335a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart v4l2_device_unregister(&dev->vdev); 16345a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16355a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_devnode_is_registered(&dev->mdev.devnode)) 16365a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart media_device_unregister(&dev->mdev); 16375a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 16385a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 1639716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->chains) { 1640716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_video_chain *chain; 1641716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart chain = list_entry(p, struct uvc_video_chain, list); 1642716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(chain); 1643716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1644716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1645716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->entities) { 1646716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_entity *entity; 1647716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart entity = list_entry(p, struct uvc_entity, list); 16484ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16494ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_mc_cleanup_entity(entity); 16504ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 16518a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart if (entity->vdev) { 16528a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart video_device_release(entity->vdev); 16538a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart entity->vdev = NULL; 16548a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart } 1655716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(entity); 1656716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1657716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1658716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->streams) { 1659716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *streaming; 1660716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming = list_entry(p, struct uvc_streaming, list); 1661716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_driver_release_interface(&uvc_driver.driver, 1662716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming->intf); 1663716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(streaming->intf); 1664716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->format); 1665716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->header.bmaControls); 1666716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming); 1667716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1668716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1669716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(dev); 1670716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1671716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1672716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_release(struct video_device *vdev) 1673716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1674716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *stream = video_get_drvdata(vdev); 1675716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_device *dev = stream->dev; 1676716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1677716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the registered streams count and delete the device when it 1678716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * reaches zero. 1679716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1680716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1681716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 1682716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1683716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1684716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart/* 16858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Unregister the video devices. 16868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 16878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic void uvc_unregister_video(struct uvc_device *dev) 16888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 16898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 16908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1691716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Unregistering all video devices might result in uvc_delete() being 1692716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * called from inside the loop if there's no open file handle. To avoid 1693716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * that, increment the stream count before iterating over the streams 1694716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * and decrement it when done. 1695716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1696716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 1697716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 16998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream->vdev == NULL) 17008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1702716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart video_unregister_device(stream->vdev); 17038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 1704edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 1705edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup_stream(stream); 17068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1707716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1708716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the stream count and call uvc_delete explicitly if there 1709716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * are no stream left. 1710716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1711716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1712716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 17138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_video(struct uvc_device *dev, 17168e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream) 17178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17188e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct video_device *vdev; 17198e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17208e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17218e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Initialize the streaming interface with default streaming 17228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * parameters. 17238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_video_init(stream); 17258e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17268e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to initialize the device " 17278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "(%d).\n", ret); 17288e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17298e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17308e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1731edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init_stream(stream); 1732edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 17338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Register the device with V4L. */ 17348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev = video_device_alloc(); 17358e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (vdev == NULL) { 17368e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n", 17378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17388e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -ENOMEM; 17398e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17408e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17418e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* We already hold a reference to dev->udev. The video device will be 17428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * unregistered before the reference is released, so we don't need to 17438e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * get another one. 17448e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17455a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart vdev->v4l2_dev = &dev->vdev; 17468e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev->fops = &uvc_fops; 1747716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart vdev->release = uvc_release; 17480550513c7a559b4933c5e1d47fbd15d15f6078d5Laurent Pinchart vdev->prio = &stream->chain->prio; 1749954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) 1750954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil vdev->vfl_dir = VFL_DIR_TX; 17518e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart strlcpy(vdev->name, dev->name, sizeof vdev->name); 17528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17538e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Set the driver data before calling video_register_device, otherwise 17548e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * uvc_v4l2_open might race us. 17558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17568e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = vdev; 17578e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_set_drvdata(vdev, stream); 17588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 17608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", 17628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 17648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_device_release(vdev); 17658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1768f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1769f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE; 1770f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart else 1771f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; 1772f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart 1773716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 17748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 17758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 17788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Register all video devices in all chains. 17798e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_terms(struct uvc_device *dev, 17816241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart struct uvc_video_chain *chain) 17828e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 17848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_entity *term; 17858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17876241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_for_each_entry(term, &chain->entities, chain) { 17888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) 17898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream = uvc_stream_by_id(dev, term->id); 17928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream == NULL) { 17938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_INFO, "No streaming interface found " 17948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "for terminal %u.", term->id); 17958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->chain = chain; 17998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_register_video(dev, stream); 18008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 18018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 18028a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart 18038a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart term->vdev = stream->vdev; 18048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 18058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 18078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 18088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_chains(struct uvc_device *dev) 18108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 18118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_video_chain *chain; 18128e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 18138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(chain, &dev->chains, list) { 18156241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart ret = uvc_register_terms(dev, chain); 18168e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 18178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 18184ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 18194ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 18204ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart ret = uvc_mc_register_entities(chain); 18214ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart if (ret < 0) { 18224ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_printk(KERN_INFO, "Failed to register entites " 18234ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart "(%d).\n", ret); 18244ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart } 18254ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 18268e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 18278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18288e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 18298e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 18308e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18318e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 18328e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * USB probe, disconnect, suspend and resume 18338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 18348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1835c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_probe(struct usb_interface *intf, 1836c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const struct usb_device_id *id) 1837c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1838c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = interface_to_usbdev(intf); 1839c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev; 1840c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret; 1841c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1842c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (id->idVendor && id->idProduct) 1843c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " 1844c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "(%04x:%04x)\n", udev->devpath, id->idVendor, 1845c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart id->idProduct); 1846c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1847c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", 1848c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devpath); 1849c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18502c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Allocate memory for the device and initialize it. */ 1851c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) 1852c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1853c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1854c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart INIT_LIST_HEAD(&dev->entities); 18558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart INIT_LIST_HEAD(&dev->chains); 185635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart INIT_LIST_HEAD(&dev->streams); 1857716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_set(&dev->nstreams, 0); 18588fb91b33c6bfa3ac5e4ad76920b7bcd7bdbbb6d0Martin Rubli atomic_set(&dev->nmappings, 0); 185917706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_init(&dev->lock); 1860c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1861c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev = usb_get_dev(udev); 1862c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intf = usb_get_intf(intf); 1863c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; 186473de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart dev->quirks = (uvc_quirks_param == -1) 186573de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart ? id->driver_info : uvc_quirks_param; 1866c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1867c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (udev->product != NULL) 1868d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(dev->name, udev->product, sizeof dev->name); 1869c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1870c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart snprintf(dev->name, sizeof dev->name, 1871c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "UVC Camera (%04x:%04x)", 1872c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1873c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1874c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18752c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Parse the Video Class control descriptor. */ 1876c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_parse_control(dev) < 0) { 1877c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " 1878c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "descriptors.\n"); 1879c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1880c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1881c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1882fba4578ee925110587ef9b8b6ddfabf2ce288071Laurent Pinchart uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n", 1883c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->uvc_version >> 8, dev->uvc_version & 0xff, 1884c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->product ? udev->product : "<unnamed>", 1885c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1886c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1887c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 188873de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart if (dev->quirks != id->driver_info) { 188973de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module " 189073de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart "parameter for testing purpose.\n", dev->quirks); 1891c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Please report required quirks to the " 1892c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "linux-uvc-devel mailing list.\n"); 1893c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1894c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18955a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register the media and V4L2 devices. */ 18965a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 18975a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.dev = &intf->dev; 18985a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); 18995a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (udev->serial) 19005a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.serial, udev->serial, 19015a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart sizeof(dev->mdev.serial)); 19025a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strcpy(dev->mdev.bus_info, udev->devpath); 19035a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); 1904fd3e5824824d1beaf376cd523c7418c5570851d4Mauro Carvalho Chehab dev->mdev.driver_version = LINUX_VERSION_CODE; 19055a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_device_register(&dev->mdev) < 0) 19065a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 19075a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 19085a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->vdev.mdev = &dev->mdev; 19095a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 19105a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) 19115a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 19125a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 19132c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize controls. */ 1914c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_ctrl_init_device(dev) < 0) 1915c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1916c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Scan the device for video chains. */ 191835f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (uvc_scan_device(dev) < 0) 1919c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1920c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19215a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register video device nodes. */ 19228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_register_chains(dev) < 0) 19238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart goto error; 19248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 19252c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Save our data pointer in the interface data. */ 1926c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, dev); 1927c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19282c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize the interrupt URB. */ 1929c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((ret = uvc_status_init(dev)) < 0) { 1930c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Unable to initialize the status " 1931c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "endpoint (%d), status interrupt will not be " 1932c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "supported.\n", ret); 1933c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1934c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1935c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); 19363dae8b41dc5651f8eb22cf310e8b116480ba25b7Matthew Garrett usb_enable_autosuspend(udev); 1937c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1938c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1939c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pincharterror: 1940716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1941c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENODEV; 1942c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1943c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1944c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void uvc_disconnect(struct usb_interface *intf) 1945c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1946c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 1947c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1948c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Set the USB interface data to NULL. This can be done outside the 1949c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * lock, as there's no other reader. 1950c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1951c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, NULL); 1952c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1953b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1954b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOSTREAMING) 1955c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return; 1956c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1957c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->state |= UVC_DEV_DISCONNECTED; 1958a9e285856112e5e721b6a341d15437a164128b30Laurent Pinchart 1959716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1960c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1961c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1962c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_suspend(struct usb_interface *intf, pm_message_t message) 1963c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1964c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 196535f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1966c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1967c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", 1968c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1969c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1970c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Controls are cached on the fly so they don't need to be saved. */ 1971b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 197217706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart UVC_SC_VIDEOCONTROL) { 197317706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_lock(&dev->lock); 197417706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (dev->users) 197517706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart uvc_status_stop(dev); 197617706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_unlock(&dev->lock); 197717706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart return 0; 197817706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart } 1979c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 198035f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 198135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 198235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return uvc_video_suspend(stream); 1983c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1984c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 198535f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " 198635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 198735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 1988c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1989c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19909b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int __uvc_resume(struct usb_interface *intf, int reset) 1991c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1992c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 199335f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1994c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1995c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", 1996c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1997c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1998b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1999b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOCONTROL) { 200017706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart int ret = 0; 20017564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil 200217706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (reset) { 200317e1319fd051f6f1d8b923ca3104c3391610ab32William Manley ret = uvc_ctrl_restore_values(dev); 20047564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil if (ret < 0) 20057564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil return ret; 20067564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil } 2007c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 200817706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_lock(&dev->lock); 200917706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (dev->users) 201017706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart ret = uvc_status_start(dev, GFP_NOIO); 201117706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_unlock(&dev->lock); 201217706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart 201317706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart return ret; 2014c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 2015c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 201635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 201735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 2018d59a7b1dbce8b972ec2dc9fcaaae0bfa23687423Ming Lei return uvc_video_resume(stream, reset); 2019c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 2020c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 202135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " 202235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 202335f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 2024c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2025c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 20269b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_resume(struct usb_interface *intf) 20279b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 20289b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 0); 20299b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 20309b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 20319b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_reset_resume(struct usb_interface *intf) 20329b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 20339b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 1); 20349b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 20359b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 2036c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 2037310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart * Module parameters 2038310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart */ 2039310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2040310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_get(char *buffer, struct kernel_param *kp) 2041310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2042310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (uvc_clock_param == CLOCK_MONOTONIC) 2043310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_MONOTONIC"); 2044310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2045310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_REALTIME"); 2046310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2047310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2048310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_set(const char *val, struct kernel_param *kp) 2049310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2050310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strncasecmp(val, "clock_", strlen("clock_")) == 0) 2051310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart val += strlen("clock_"); 2052310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2053310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strcasecmp(val, "monotonic") == 0) 2054310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_MONOTONIC; 2055310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else if (strcasecmp(val, "realtime") == 0) 2056310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_REALTIME; 2057310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2058310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return -EINVAL; 2059310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2060310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return 0; 2061310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2062310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2063310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, 2064310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart &uvc_clock_param, S_IRUGO|S_IWUSR); 2065310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(clock, "Video buffers timestamp clock"); 2066310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); 2067310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); 2068310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); 2069310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(quirks, "Forced device quirks"); 2070310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); 2071310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(trace, "Trace level bitmask"); 2072310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); 2073310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(timeout, "Streaming control requests timeout"); 2074310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2075310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart/* ------------------------------------------------------------------------ 2076c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Driver initialization and cleanup 2077c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2078c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2079c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 2080c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * The Logitech cameras listed below have their interface class set to 2081c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * VENDOR_SPEC because they don't announce themselves as UVC devices, even 2082c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * though they are compliant. 2083c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2084c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct usb_device_id uvc_ids[] = { 20854eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart /* LogiLink Wireless Webcam */ 20864eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 20874eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 20884eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idVendor = 0x0416, 20894eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idProduct = 0xa91a, 20904eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 20914eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceSubClass = 1, 20924eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceProtocol = 0, 20934eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2094bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart /* Genius eFace 2025 */ 2095bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2096bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2097bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idVendor = 0x0458, 2098bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idProduct = 0x706e, 2099bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2100bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceSubClass = 1, 2101bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceProtocol = 0, 2102bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2103c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam NX-6000 */ 2104c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2105c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2106c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2107c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x00f8, 2108c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2109c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2110c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2111c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 21121558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart /* Microsoft Lifecam NX-3000 */ 21131558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 21141558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 21151558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .idVendor = 0x045e, 21161558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .idProduct = 0x0721, 21171558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 21181558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .bInterfaceSubClass = 1, 21191558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .bInterfaceProtocol = 0, 21201558ec837f4aa85987193d057377c42b243ca140Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2121c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam VX-7000 */ 2122c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2123c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2124c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2125c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0723, 2126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2127c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2129c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Fusion */ 2131c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2134c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c1, 2135c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2136c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2137c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2138c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Orbit MP */ 2139c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2140c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2141c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2142c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c2, 2143c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2144c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2146c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro for Notebook */ 2147c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2150c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c3, 2151c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2152c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2153c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2154c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro 5000 */ 2155c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2156c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2157c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2158c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c5, 2159c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2160c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2162c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Dell Notebook */ 2163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2164c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2166c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c6, 2167c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2168c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Cisco VT Camera II */ 2171c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2172c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2173c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2174c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c7, 2175c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2176c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2177c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 217817e1319fd051f6f1d8b923ca3104c3391610ab32William Manley /* Logitech HD Pro Webcam C920 */ 217917e1319fd051f6f1d8b923ca3104c3391610ab32William Manley { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 218017e1319fd051f6f1d8b923ca3104c3391610ab32William Manley | USB_DEVICE_ID_MATCH_INT_INFO, 218117e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .idVendor = 0x046d, 218217e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .idProduct = 0x082d, 218317e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .bInterfaceClass = USB_CLASS_VIDEO, 218417e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .bInterfaceSubClass = 1, 218517e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .bInterfaceProtocol = 0, 218617e1319fd051f6f1d8b923ca3104c3391610ab32William Manley .driver_info = UVC_QUIRK_RESTORE_CTRLS_ON_INIT }, 218786d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart /* Chicony CNF7129 (Asus EEE 100HE) */ 218886d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 218986d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 219086d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idVendor = 0x04f2, 219186d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idProduct = 0xb071, 219286d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 219386d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceSubClass = 1, 219486d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceProtocol = 0, 219586d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE }, 2196f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ 2197f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2198f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2199f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idVendor = 0x058f, 2200f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idProduct = 0x3820, 2201f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2202f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceSubClass = 1, 2203f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceProtocol = 0, 2204f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 22053efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart /* Dell XPS m1530 */ 22063efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 22073efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 22083efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idVendor = 0x05a9, 22093efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idProduct = 0x2640, 22103efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 221189e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .bInterfaceSubClass = 1, 221289e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .bInterfaceProtocol = 0, 221389e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .driver_info = UVC_QUIRK_PROBE_DEF }, 221489e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury /* Dell SP2008WFP Monitor */ 221589e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 221689e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury | USB_DEVICE_ID_MATCH_INT_INFO, 221789e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .idVendor = 0x05a9, 221889e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .idProduct = 0x2641, 221989e0f248dcd301e44985510dee2a3d5ab4c2fc2dJoseph Salisbury .bInterfaceClass = USB_CLASS_VIDEO, 22203efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceSubClass = 1, 22213efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceProtocol = 0, 22223efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2223c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury /* Dell Alienware X51 */ 2224c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2225c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury | USB_DEVICE_ID_MATCH_INT_INFO, 2226c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .idVendor = 0x05a9, 2227c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .idProduct = 0x2643, 2228c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceClass = USB_CLASS_VIDEO, 2229c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceSubClass = 1, 2230c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceProtocol = 0, 2231c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .driver_info = UVC_QUIRK_PROBE_DEF }, 2232afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa /* Dell Studio Hybrid 140g (OmniVision webcam) */ 2233afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2234afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa | USB_DEVICE_ID_MATCH_INT_INFO, 2235afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .idVendor = 0x05a9, 2236afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .idProduct = 0x264a, 2237afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceClass = USB_CLASS_VIDEO, 2238afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceSubClass = 1, 2239afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceProtocol = 0, 2240afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .driver_info = UVC_QUIRK_PROBE_DEF }, 224162ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser /* Dell XPS M1330 (OmniVision OV7670 webcam) */ 224262ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 224362ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser | USB_DEVICE_ID_MATCH_INT_INFO, 224462ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .idVendor = 0x05a9, 224562ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .idProduct = 0x7670, 224662ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .bInterfaceClass = USB_CLASS_VIDEO, 224762ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .bInterfaceSubClass = 1, 224862ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .bInterfaceProtocol = 0, 224962ea864f84fed6e04dd033d500d4c9183a83d590Paul Fertser .driver_info = UVC_QUIRK_PROBE_DEF }, 2250c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Apple Built-In iSight */ 22512c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2252c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2253c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x05ac, 2254c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8501, 22552c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22562c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 22572c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 2258c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2259c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | UVC_QUIRK_BUILTIN_ISIGHT }, 2260949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov /* Foxlink ("HP Webcam" on HP Mini 5103) */ 2261949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2262949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov | USB_DEVICE_ID_MATCH_INT_INFO, 2263949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idVendor = 0x05c8, 2264949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idProduct = 0x0403, 2265949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceClass = USB_CLASS_VIDEO, 2266949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceSubClass = 1, 2267949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceProtocol = 0, 2268949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Genesys Logic USB 2.0 PC Camera */ 22702c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 22722c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idVendor = 0x05e3, 22732c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idProduct = 0x0505, 22742c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22752c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 22762c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 22772c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2278e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart /* Hercules Classic Silver */ 2279e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2280e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2281e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idVendor = 0x06f8, 2282e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idProduct = 0x300c, 2283e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2284e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceSubClass = 1, 2285e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceProtocol = 0, 2286e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2287d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Vega */ 2288d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2289d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2290d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2291d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x332d, 2292d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2293d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2294d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2295d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2296d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro - Minoru3D */ 2297d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2298d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2299d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2300d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3410, 2301d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2302d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2303d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2304d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2305d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Venus - Minoru3D */ 2306d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 230750144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 230850144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .idVendor = 0x0ac8, 2309d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3420, 231050144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 231150144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceSubClass = 1, 231250144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceProtocol = 0, 231350144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2314d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart /* Ophir Optronics - SPCAM 620U */ 2315d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2316d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2317d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idVendor = 0x0bd3, 2318d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idProduct = 0x0555, 2319d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2320d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceSubClass = 1, 2321d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceProtocol = 0, 2322d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2323c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* MT6227 */ 2324c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2325c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2326c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x0e8d, 2327c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0004, 2328c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2329c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2330c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2331bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2332bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart | UVC_QUIRK_PROBE_DEF }, 23339275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart /* IMC Networks (Medion Akoya) */ 23349275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23359275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23369275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idVendor = 0x13d3, 23379275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idProduct = 0x5103, 23389275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23399275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceSubClass = 1, 23409275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceProtocol = 0, 23419275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2342d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart /* JMicron USB2.0 XGA WebCam */ 2343d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2344d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2345d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idVendor = 0x152d, 2346d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idProduct = 0x0310, 2347d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2348d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceSubClass = 1, 2349d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceProtocol = 0, 2350d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2351c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (HP Spartan) */ 2352c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2353c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2354c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2355c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x5212, 2356c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2357c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2358c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 235925e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2360562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart /* Syntek (Samsung Q310) */ 2361562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2362562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2363562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idVendor = 0x174f, 2364562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idProduct = 0x5931, 2365562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2366562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceSubClass = 1, 2367562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceProtocol = 0, 2368562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2369f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart /* Syntek (Packard Bell EasyNote MX52 */ 2370f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2371f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2372f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idVendor = 0x174f, 2373f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idProduct = 0x8a12, 2374f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2375f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceSubClass = 1, 2376f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceProtocol = 0, 2377f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2378f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Syntek (Asus F9SG) */ 237925e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 238025e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 238125e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idVendor = 0x174f, 238225e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idProduct = 0x8a31, 238325e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 238425e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceSubClass = 1, 238525e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceProtocol = 0, 2386c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2387c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (Asus U3S) */ 2388c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2389c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2390c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2391c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8a33, 2392c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2394c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2395c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 23960ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart /* Syntek (JAOtech Smart Terminal) */ 23970ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23980ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23990ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idVendor = 0x174f, 24000ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idProduct = 0x8a34, 24010ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24020ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceSubClass = 1, 24030ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceProtocol = 0, 24040ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 240570092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart /* Miricle 307K */ 240670092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 240770092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 240870092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idVendor = 0x17dc, 240970092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idProduct = 0x0202, 241070092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 241170092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceSubClass = 1, 241270092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceProtocol = 0, 241370092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2414849a3aba2d9830dc2a78a66078023e7e5ac26e15Filipe Rosset /* Lenovo Thinkpad SL400/SL500 */ 24152f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24162f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24172f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idVendor = 0x17ef, 24182f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idProduct = 0x480b, 24192f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24202f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceSubClass = 1, 24212f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceProtocol = 0, 24222f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 24232d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart /* Aveo Technology USB 2.0 Camera */ 24242d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24252d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24262d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idVendor = 0x1871, 24272d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idProduct = 0x0306, 24282d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24292d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceSubClass = 1, 24302d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceProtocol = 0, 24315bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 24325bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart | UVC_QUIRK_PROBE_EXTRAFIELDS }, 2433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Ecamm Pico iMage */ 2434c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2435c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2436c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x18cd, 2437c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0xcafe, 2438c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2439c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2440c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2441c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, 24422bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart /* Manta MM-353 Plako */ 24432bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24442bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24452bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idVendor = 0x18ec, 24462bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idProduct = 0x3188, 24472bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24482bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceSubClass = 1, 24492bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceProtocol = 0, 24502bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2451ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart /* FSC WebCam V30S */ 2452ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2453ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2454ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idVendor = 0x18ec, 2455ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idProduct = 0x3288, 2456ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2457ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceSubClass = 1, 2458ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceProtocol = 0, 2459ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 24601e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart /* Arkmicro unbranded */ 24611e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24621e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24631e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idVendor = 0x18ec, 24641e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idProduct = 0x3290, 24651e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24661e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceSubClass = 1, 24671e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceProtocol = 0, 24681e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2469fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari /* The Imaging Source USB CCD cameras */ 2470fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2471fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari | USB_DEVICE_ID_MATCH_INT_INFO, 2472fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idVendor = 0x199e, 2473fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idProduct = 0x8102, 2474fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2475fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceSubClass = 1, 2476fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceProtocol = 0 }, 2477c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Bodelin ProScopeHR */ 2478c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2479c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_DEV_HI 2480c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2481c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x19ab, 2482c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x1000, 2483c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bcdDevice_hi = 0x0126, 2484c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2485c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2486c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STATUS_INTERVAL }, 24883bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart /* MSI StarCam 370i */ 24893bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24903bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24913bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idVendor = 0x1b3b, 24923bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idProduct = 0x2951, 24933bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24943bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceSubClass = 1, 24953bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceProtocol = 0, 24963bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2497c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* SiGma Micro USB Web Camera */ 2498c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2499c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2500c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x1c4f, 2501c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x3000, 2502c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2503c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2504c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2505c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2506d732c44c1a4b54e3c59ad92069bc2fd848aca5f3Laurent Pinchart | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, 2507c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Generic USB Video Class */ 2508c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, 2509c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart {} 2510c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2511c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2512c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DEVICE_TABLE(usb, uvc_ids); 2513c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2514c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstruct uvc_driver uvc_driver = { 2515c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver = { 2516c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "uvcvideo", 2517c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .probe = uvc_probe, 2518c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .disconnect = uvc_disconnect, 2519c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .suspend = uvc_suspend, 2520c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .resume = uvc_resume, 25219b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart .reset_resume = uvc_reset_resume, 2522c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .id_table = uvc_ids, 2523c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .supports_autosuspend = 1, 2524c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 2525c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2526c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2527c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int __init uvc_init(void) 2528c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2529edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher int ret; 2530c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2531edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init(); 2532edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2533edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher ret = usb_register(&uvc_driver.driver); 2534edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher if (ret < 0) { 2535edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2536edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return ret; 2537edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher } 2538edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2539edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); 2540edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return 0; 2541c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2542c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2543c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void __exit uvc_cleanup(void) 2544c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2545c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_deregister(&uvc_driver.driver); 2546edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2547c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2548c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2549c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_init(uvc_init); 2550c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_exit(uvc_cleanup); 2551c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2552c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_AUTHOR(DRIVER_AUTHOR); 2553c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DESCRIPTION(DRIVER_DESC); 2554c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_LICENSE("GPL"); 2555c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_VERSION(DRIVER_VERSION); 2556f87086e302300fdff1bd32049deb7a7f3e3de7daHans Verkuil 2557