uvc_driver.c revision f887e99ae2210e23c9726b6f146938a84f6acc47
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 { 111c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "RGB Bayer", 112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .guid = UVC_GUID_FORMAT_BY8, 113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .fcc = V4L2_PIX_FMT_SBGGR8, 114c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 115507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart { 116507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .name = "RGB565", 117507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .guid = UVC_GUID_FORMAT_RGBP, 118507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart .fcc = V4L2_PIX_FMT_RGB565, 119507910799160e85eac5e7729e0d2f1ba26f6a8cfLaurent Pinchart }, 12025ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky { 12125ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .name = "H.264", 12225ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .guid = UVC_GUID_FORMAT_H264, 12325ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky .fcc = V4L2_PIX_FMT_H264, 12425ad8a8ddeeb26c77728c806a5f66608c9baa986Stephan Lachowsky }, 125c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 127c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Utility functions 129c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 131c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstruct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, 132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u8 epaddr) 133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 134c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep; 135c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 136c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 137c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < alts->desc.bNumEndpoints; ++i) { 138c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep = &alts->endpoint[i]; 139c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->desc.bEndpointAddress == epaddr) 140c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ep; 141c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 142c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 143c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 144c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 146c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16]) 147c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int len = ARRAY_SIZE(uvc_fmts); 149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 150c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 151c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < len; ++i) { 152c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (memcmp(guid, uvc_fmts[i].guid, 16) == 0) 153c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return &uvc_fmts[i]; 154c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 155c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 156c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 157c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 158c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 159c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic __u32 uvc_colorspace(const __u8 primaries) 160c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart static const __u8 colorprimaries[] = { 162c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 0, 163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SRGB, 164c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_470_SYSTEM_M, 165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_470_SYSTEM_BG, 166c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SMPTE170M, 167c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart V4L2_COLORSPACE_SMPTE240M, 168c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }; 169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (primaries < ARRAY_SIZE(colorprimaries)) 171c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return colorprimaries[primaries]; 172c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 173c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 174c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 175c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 176c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Simplify a fraction using a simple continued fraction decomposition. The 177c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * idea here is to convert fractions such as 333333/10000000 to 1/30 using 178c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 32 bit arithmetic only. The algorithm is not perfect and relies upon two 179c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * arbitrary parameters to remove non-significative terms from the simple 180c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * continued fraction decomposition. Using 8 and 333 for n_terms and threshold 181c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * respectively seems to give nice results. 182c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 183c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartvoid uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, 184c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int n_terms, unsigned int threshold) 185c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 186c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t *an; 187c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t x, y, r; 188c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n; 189c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 190c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart an = kmalloc(n_terms * sizeof *an, GFP_KERNEL); 191c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (an == NULL) 192c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return; 193c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 194c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Convert the fraction to a simple continued fraction. See 195c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * http://mathforum.org/dr.math/faq/faq.fractions.html 196c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Stop if the current term is bigger than or equal to the given 197c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * threshold. 198c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 199c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = *numerator; 200c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = *denominator; 201c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 202c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (n = 0; n < n_terms && y != 0; ++n) { 203c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart an[n] = x / y; 204c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (an[n] >= threshold) { 205c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (n < 2) 206c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n++; 207c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 208c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 209c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 210c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart r = x - an[n] * y; 211c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = y; 212c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = r; 213c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 214c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 215c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Expand the simple continued fraction back to an integer fraction. */ 216c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = 0; 217c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = 1; 218c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 219c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = n; i > 0; --i) { 220c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart r = y; 221c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart y = an[i-1] * y + x; 222c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart x = r; 223c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 224c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 225c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *numerator = y; 226c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *denominator = x; 227c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(an); 228c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 229c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 230c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Convert a fraction to a frame interval in 100ns multiples. The idea here is 231c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * to compute numerator / denominator * 10000000 using 32 bit fixed point 232c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * arithmetic only. 233c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 234c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartuint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator) 235c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 236c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uint32_t multiplier; 237c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 238c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Saturate the result if the operation would overflow. */ 239c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (denominator == 0 || 240c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart numerator/denominator >= ((uint32_t)-1)/10000000) 241c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return (uint32_t)-1; 242c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 243c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Divide both the denominator and the multiplier by two until 244c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * numerator * multiplier doesn't overflow. If anyone knows a better 245c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * algorithm please let me know. 246c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 247c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart multiplier = 10000000; 248c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (numerator > ((uint32_t)-1)/multiplier) { 249c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart multiplier /= 2; 250c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart denominator /= 2; 251c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 252c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 253c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return denominator ? numerator * multiplier / denominator : 0; 254c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 255c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 256c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 257c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Terminal and unit management 258c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 259c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2604ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchartstruct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) 261c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 262c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity; 263c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 264c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry(entity, &dev->entities, list) { 265c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (entity->id == id) 266c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return entity; 267c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 268c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 270c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 272c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, 273c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int id, struct uvc_entity *entity) 274c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 275c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i; 276c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 277c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (entity == NULL) 278c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart entity = list_entry(&dev->entities, struct uvc_entity, list); 279c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 280c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry_continue(entity, &dev->entities, list) { 2818ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart for (i = 0; i < entity->bNrInPins; ++i) 2828ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->baSourceID[i] == id) 283c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return entity; 284c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 285c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 286c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return NULL; 287c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 288c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) 2908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 2918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 2928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 2938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 2948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream->header.bTerminalLink == id) 2958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return stream; 2968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 2978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 2988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return NULL; 2998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 3008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 301c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 3028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Descriptors parsing 303c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 304c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 305c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_format(struct uvc_device *dev, 306c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_streaming *streaming, struct uvc_format *format, 307c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u32 **intervals, unsigned char *buffer, int buflen) 308c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 309c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf = streaming->intf; 310c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = intf->cur_altsetting; 311c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_format_desc *fmtdesc; 312c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_frame *frame; 313c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *start = buffer; 314c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int interval; 315c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n; 316c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u8 ftype; 317c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 318c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->type = buffer[2]; 319c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->index = buffer[3]; 320c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 321c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 322b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 323b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 324b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart n = buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED ? 27 : 28; 325233548a2fd934a0220db8b1521c0bc88c82e5e53Laurent Pinchart if (buflen < n) { 326b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 327c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 328c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 329c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 330c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 331c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 332c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 333c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Find the format descriptor from its GUID. */ 334c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart fmtdesc = uvc_format_by_guid(&buffer[5]); 335c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 336c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (fmtdesc != NULL) { 337d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, fmtdesc->name, 338c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof format->name); 339c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = fmtdesc->fcc; 340c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 34136bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart uvc_printk(KERN_INFO, "Unknown video format %pUl\n", 34236bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart &buffer[5]); 34336bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart snprintf(format->name, sizeof(format->name), "%pUl\n", 34436bd883ef98ac6003ab6ec7b91f66d3fb2159318Laurent Pinchart &buffer[5]); 345c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = 0; 346c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 347c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 348c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = buffer[21]; 349b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (buffer[2] == UVC_VS_FORMAT_UNCOMPRESSED) { 350b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_UNCOMPRESSED; 351c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 352b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_FRAME_BASED; 353c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[27]) 354c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED; 355c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 356c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 357c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 358b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 359c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 11) { 360b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 361c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 362c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 363c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 364c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 365c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 366c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 367d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "MJPEG", sizeof format->name); 368c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = V4L2_PIX_FMT_MJPEG; 369c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED; 370c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = 0; 371b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart ftype = UVC_VS_FRAME_MJPEG; 372c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 373c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 374b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 375c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 9) { 376b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 377c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT error\n", 378c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 379c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 380c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 381c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 382c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 383c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[8] & 0x7f) { 384c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 0: 385d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "SD-DV", sizeof format->name); 386c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 387c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 1: 388d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "SDL-DV", sizeof format->name); 389c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 390c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 2: 391d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(format->name, "HD-DV", sizeof format->name); 392c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 394b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 395c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d: unknown DV format %u\n", 396c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 397c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, buffer[8]); 398c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 399c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 400c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 401d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz", 402c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof format->name); 403c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 404c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->fcc = V4L2_PIX_FMT_DV; 405c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; 406c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->bpp = 0; 407c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ftype = 0; 408c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 409c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Create a dummy frame descriptor. */ 410c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame = &format->frame[0]; 411c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memset(&format->frame[0], 0, sizeof format->frame[0]); 412c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = 1; 413c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 1; 414c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwFrameInterval = *intervals; 415c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *(*intervals)++ = 1; 416c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->nframes = 1; 417c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 418c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 419b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MPEG2TS: 420b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_STREAM_BASED: 421c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Not supported yet. */ 422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 423b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 424c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d unsupported format %u\n", 425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber, 426c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[2]); 427c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 428c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 429c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name); 431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 432c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 434c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 435c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the frame descriptors. Only uncompressed, MJPEG and frame 436c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * based formats have frame descriptors. 437c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 438c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 439c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == ftype) { 440078f8947926732a526fb280c0f3a8920bf173b9cLaurent Pinchart frame = &format->frame[format->nframes]; 441b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (ftype != UVC_VS_FRAME_FRAME_BASED) 442c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen > 25 ? buffer[25] : 0; 443c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 444c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen > 21 ? buffer[21] : 0; 445c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 446c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = n ? n : 3; 447c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 448c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 26 + 4*n) { 449b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 450c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FRAME error\n", dev->udev->devnum, 451c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 452c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 453c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 454c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 455c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIndex = buffer[3]; 456c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bmCapabilities = buffer[4]; 4579bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->wWidth = get_unaligned_le16(&buffer[5]); 4589bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->wHeight = get_unaligned_le16(&buffer[7]); 4599bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->dwMinBitRate = get_unaligned_le32(&buffer[9]); 4609bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich frame->dwMaxBitRate = get_unaligned_le32(&buffer[13]); 461b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (ftype != UVC_VS_FRAME_FRAME_BASED) { 462c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = 4639bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[17]); 464c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 4659bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[21]); 466c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = buffer[25]; 467c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 468c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = 0; 469c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 4709bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le32(&buffer[17]); 471c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->bFrameIntervalType = buffer[21]; 472c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 473c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwFrameInterval = *intervals; 474c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 475c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Several UVC chipsets screw up dwMaxVideoFrameBufferSize 476c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * completely. Observed behaviours range from setting the 4772c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * value to 1.1x the actual frame size to hardwiring the 478c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 16 low bits to 0. This results in a higher than necessary 479c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * memory usage as well as a wrong image size information. For 480c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * uncompressed formats this can be fixed by computing the 481c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * value from the frame size. 482c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 483c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) 484c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwMaxVideoFrameBufferSize = format->bpp 485c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * frame->wWidth * frame->wHeight / 8; 486c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Some bogus devices report dwMinFrameInterval equal to 488c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * dwMaxFrameInterval and have dwFrameIntervalStep set to 489c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * zero. Setting all null intervals to 1 fixes the problem and 4902c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * some other divisions by zero that could happen. 491c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 492c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < n; ++i) { 4939bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich interval = get_unaligned_le32(&buffer[26+4*i]); 494c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart *(*intervals)++ = interval ? interval : 1; 495c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 496c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 497c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure that the default frame interval stays between 498c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * the boundaries. 499c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 500c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n -= frame->bFrameIntervalType ? 1 : 2; 501c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval = 502c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart min(frame->dwFrameInterval[n], 503c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart max(frame->dwFrameInterval[0], 504c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->dwDefaultFrameInterval)); 505c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 50686d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart if (dev->quirks & UVC_QUIRK_RESTRICT_FRAME_RATE) { 50786d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->bFrameIntervalType = 1; 50886d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->dwFrameInterval[0] = 50986d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart frame->dwDefaultFrameInterval; 51086d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart } 51186d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart 512c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n", 513c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame->wWidth, frame->wHeight, 514c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10000000/frame->dwDefaultFrameInterval, 515c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart (100000000/frame->dwDefaultFrameInterval)%10); 516c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 517078f8947926732a526fb280c0f3a8920bf173b9cLaurent Pinchart format->nframes++; 518c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 519c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 520c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 521c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 522c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 523c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == UVC_VS_STILL_IMAGE_FRAME) { 524c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 525c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 526c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 527c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 528c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE && 529c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart buffer[2] == UVC_VS_COLORFORMAT) { 530c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 6) { 531b2d9cc4226fa512aa36fd78738f5069dfce0583dLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 532c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d COLORFORMAT error\n", 533c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 534c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 535c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 536c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 537c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 538c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->colorspace = uvc_colorspace(buffer[3]); 539c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 540c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 541c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 542c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 543c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 544c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return buffer - start; 545c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 546c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 547c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_streaming(struct uvc_device *dev, 548c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf) 549c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 550c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_streaming *streaming = NULL; 551c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_format *format; 552c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_frame *frame; 553c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = &intf->altsetting[0]; 554c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned char *_buffer, *buffer = alts->extra; 555c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int _buflen, buflen = alts->extralen; 556c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int nformats = 0, nframes = 0, nintervals = 0; 557c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int size, i, n, p; 558c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u32 *interval; 559c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u16 psize; 560c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret = -EINVAL; 561c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 562c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass 563b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart != UVC_SC_VIDEOSTREAMING) { 564c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " 565c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "video streaming interface\n", dev->udev->devnum, 566c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->altsetting[0].desc.bInterfaceNumber); 567c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 568c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 569c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 570c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { 571c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already " 572c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "claimed\n", dev->udev->devnum, 573c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->altsetting[0].desc.bInterfaceNumber); 574c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 575c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 576c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 577c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming = kzalloc(sizeof *streaming, GFP_KERNEL); 578c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (streaming == NULL) { 579c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_driver_release_interface(&uvc_driver.driver, intf); 580c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 581c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 582c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 583c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart mutex_init(&streaming->mutex); 58435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart streaming->dev = dev; 585c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->intf = usb_get_intf(intf); 586c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; 587c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 588c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* The Pico iMage webcam has its class-specific interface descriptors 589c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * after the endpoint descriptors. 590c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 591c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen == 0) { 592c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < alts->desc.bNumEndpoints; ++i) { 593c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep = &alts->endpoint[i]; 594c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 595c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->extralen == 0) 596c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 597c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 598c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep->extralen > 2 && 599c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep->extra[1] == USB_DT_CS_INTERFACE) { 600c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "trying extra data " 601c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "from endpoint %u.\n", i); 602c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer = alts->endpoint[i].extra; 603c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen = alts->endpoint[i].extralen; 604c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 605c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 606c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 607c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 608c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 609c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Skip the standard interface descriptors. */ 610c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { 611c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 612c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 613c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 614c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 615c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen <= 2) { 616c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming " 617c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface descriptors found.\n"); 618c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 619c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 620c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 621c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the header descriptor. */ 622ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart switch (buffer[2]) { 623b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_OUTPUT_HEADER: 624ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 625ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart size = 9; 626ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 627ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 628b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_INPUT_HEADER: 629ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 630ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart size = 13; 631ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 632ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 633ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart default: 634c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 635ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart "%d HEADER descriptor not found.\n", dev->udev->devnum, 636ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart alts->desc.bInterfaceNumber); 637c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 638ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 639c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 640ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart p = buflen >= 4 ? buffer[3] : 0; 641ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart n = buflen >= size ? buffer[size-1] : 0; 642ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 643ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart if (buflen < size + p*n) { 644ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 645ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart "interface %d HEADER descriptor is invalid.\n", 646ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber); 647ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart goto error; 648ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 649c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 650ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bNumFormats = p; 651ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bEndpointAddress = buffer[6]; 652b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (buffer[2] == UVC_VS_INPUT_HEADER) { 653c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bmInfo = buffer[7]; 654c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTerminalLink = buffer[8]; 655c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bStillCaptureMethod = buffer[9]; 656c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTriggerSupport = buffer[10]; 657c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bTriggerUsage = buffer[11]; 658c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } else { 659ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bTerminalLink = buffer[7]; 660ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 661ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart streaming->header.bControlSize = n; 662ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 6630b21d55f8904ff3d52262e91867f9eb2c0b472f3Julia Lawall streaming->header.bmaControls = kmemdup(&buffer[size], p * n, 6640b21d55f8904ff3d52262e91867f9eb2c0b472f3Julia Lawall GFP_KERNEL); 665ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart if (streaming->header.bmaControls == NULL) { 666ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart ret = -ENOMEM; 667c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 668c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 669c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 670c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 671c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 672c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 673c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buffer = buffer; 674c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buflen = buflen; 675c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 676c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Count the format and frame descriptors. */ 677042e143e8b21dca7c84e32c2e647980cb9101224Laurent Pinchart while (_buflen > 2 && _buffer[1] == USB_DT_CS_INTERFACE) { 678c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (_buffer[2]) { 679b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 680b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 681b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 682c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nformats++; 683c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 684c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 685b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 686c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* DV format has no frame descriptor. We will create a 687c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * dummy frame descriptor with a dummy frame interval. 688c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 689c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nformats++; 690c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 691c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals++; 692c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 693c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 694b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MPEG2TS: 695b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_STREAM_BASED: 696c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " 697c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d FORMAT %u is not supported.\n", 698c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, 699c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, _buffer[2]); 700c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 701c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 702b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_UNCOMPRESSED: 703b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_MJPEG: 704c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 705c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (_buflen > 25) 706c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals += _buffer[25] ? _buffer[25] : 3; 707c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 708c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 709b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FRAME_FRAME_BASED: 710c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nframes++; 711c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (_buflen > 21) 712c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart nintervals += _buffer[21] ? _buffer[21] : 3; 713c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 714c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 715c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 716c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buflen -= _buffer[0]; 717c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart _buffer += _buffer[0]; 718c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 719c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 720c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (nformats == 0) { 721c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 722c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "%d has no supported formats defined.\n", 723c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber); 724c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 725c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 726c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 727c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart size = nformats * sizeof *format + nframes * sizeof *frame 728c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart + nintervals * sizeof *interval; 729c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format = kzalloc(size, GFP_KERNEL); 730c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (format == NULL) { 731c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ret = -ENOMEM; 732c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 733c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 734c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 735c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame = (struct uvc_frame *)&format[nformats]; 736c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart interval = (__u32 *)&frame[nframes]; 737c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 738c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->format = format; 739c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->nformats = nformats; 740c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 741c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the format descriptors. */ 742042e143e8b21dca7c84e32c2e647980cb9101224Laurent Pinchart while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE) { 743c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 744b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_UNCOMPRESSED: 745b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_MJPEG: 746b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_DV: 747b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VS_FORMAT_FRAME_BASED: 748c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format->frame = frame; 749c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ret = uvc_parse_format(dev, streaming, format, 750c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart &interval, buffer, buflen); 751c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ret < 0) 752c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 753c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 754c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart frame += format->nframes; 755c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart format++; 756c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 757c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= ret; 758c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += ret; 759c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 760c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 761c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 762c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 763c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 764c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 765c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 766c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 767c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 768c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 769c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart if (buflen) 770c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " 771c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart "%d has %u bytes of trailing descriptor garbage.\n", 772c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart dev->udev->devnum, alts->desc.bInterfaceNumber, buflen); 773c4ed8c66d79d707d89fe732ff5b97739edf1ba62Laurent Pinchart 774c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the alternate settings to find the maximum bandwidth. */ 775c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < intf->num_altsetting; ++i) { 776c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep; 777c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts = &intf->altsetting[i]; 778c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart ep = uvc_find_endpoint(alts, 779c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->header.bEndpointAddress); 780c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (ep == NULL) 781c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 782c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 783c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart psize = le16_to_cpu(ep->desc.wMaxPacketSize); 784c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); 785c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (psize > streaming->maxpsize) 786c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart streaming->maxpsize = psize; 787c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 788c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 78935f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_add_tail(&streaming->list, &dev->streams); 790c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 791c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 792c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pincharterror: 793c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_driver_release_interface(&uvc_driver.driver, intf); 794c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_put_intf(intf); 795c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming->format); 796c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming->header.bmaControls); 797c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart kfree(streaming); 798c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ret; 799c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 800c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 8018ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchartstatic struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, 8028ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int num_pads, unsigned int extra_size) 8038ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart{ 8048ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart struct uvc_entity *entity; 8058ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int num_inputs; 8068ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unsigned int size; 8074ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart unsigned int i; 8088ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8094ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart extra_size = ALIGN(extra_size, sizeof(*entity->pads)); 8108ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; 8114ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads 8124ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart + num_inputs; 8138ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity = kzalloc(size, GFP_KERNEL); 8148ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity == NULL) 8158ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart return NULL; 8168ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8178ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->id = id; 8188ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->type = type; 8198ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8204ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->num_links = 0; 8214ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->num_pads = num_pads; 8224ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads = ((void *)(entity + 1)) + extra_size; 8234ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 8244ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart for (i = 0; i < num_inputs; ++i) 8254ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads[i].flags = MEDIA_PAD_FL_SINK; 8264ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart if (!UVC_ENTITY_IS_OTERM(entity)) 8274ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->pads[num_pads-1].flags = MEDIA_PAD_FL_SOURCE; 8284ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 8298ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart entity->bNrInPins = num_inputs; 8304ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart entity->baSourceID = (__u8 *)(&entity->pads[num_pads]); 8318ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 8328ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart return entity; 8338ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart} 8348ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 835c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* Parse vendor-specific extensions. */ 836c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_vendor_control(struct uvc_device *dev, 837c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *buffer, int buflen) 838c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 839c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = dev->udev; 840c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 841c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *unit; 842c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int n, p; 843c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int handled = 0; 844c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 845c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { 846c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart case 0x046d: /* Logitech */ 847c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[1] != 0x41 || buffer[2] != 0x01) 848c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 849c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 850c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech implements several vendor specific functions 851c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * through vendor specific extension units (LXU). 852c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 853c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * The LXU descriptors are similar to XU descriptors 854c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * (see "USB Device Video Class for Video Devices", section 855c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 3.7.2.6 "Extension Unit Descriptor") with the following 856c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * differences: 857c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 858c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 859c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 0 bLength 1 Number 860c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Size of this descriptor, in bytes: 24+p+n*2 861c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 862c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 23+p+n bmControlsType N Bitmap 863c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Individual bits in the set are defined: 864c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 0: Absolute 865c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 1: Relative 866c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 867c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * This bitset is mapped exactly the same as bmControls. 868c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 869c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 23+p+n*2 bReserved 1 Boolean 870c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 871c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 24+p+n*2 iExtension 1 Index 872c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Index of a string descriptor that describes this 873c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * extension unit. 874c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * ---------------------------------------------------------- 875c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 876c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 22 ? buffer[21] : 0; 877c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 25 + p ? buffer[22+p] : 0; 878c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 879c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 25 + p + 2*n) { 880c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 881c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d EXTENSION_UNIT error\n", 882c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 883c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 884c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 885c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 8868ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(UVC_VC_EXTENSION_UNIT, buffer[3], 8878ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart p + 1, 2*n); 888c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 889c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 890c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 891c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); 892c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bNumControls = buffer[20]; 8938ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[22], p); 894c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bControlSize = buffer[22+p]; 8958ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControls = (__u8 *)unit + sizeof(*unit); 8968ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControlsType = (__u8 *)unit + sizeof(*unit) 8978ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart + n; 898c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); 899c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 900c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[24+p+2*n] != 0) 901c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[24+p+2*n], unit->name, 902c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 903c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 904c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Extension %u", buffer[3]); 905c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 906c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 907c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart handled = 1; 908c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 909c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 910c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 911c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return handled; 912c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 913c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 914c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_standard_control(struct uvc_device *dev, 915c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const unsigned char *buffer, int buflen) 916c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 917c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = dev->udev; 918c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *unit, *term; 919c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_interface *intf; 920c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 921c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned int i, n, p, len; 922c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart __u16 type; 923c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 924c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (buffer[2]) { 925b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_HEADER: 926c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 12 ? buffer[11] : 0; 927c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 928c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 12 || buflen < 12 + n) { 929c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 930c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d HEADER error\n", udev->devnum, 931c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber); 932c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 933c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 934c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 9359bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich dev->uvc_version = get_unaligned_le16(&buffer[3]); 9369bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich dev->clock_frequency = get_unaligned_le32(&buffer[7]); 937c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 938c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse all USB Video Streaming interfaces. */ 939c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart for (i = 0; i < n; ++i) { 940c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf = usb_ifnum_to_if(udev, buffer[12+i]); 941c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (intf == NULL) { 942c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d " 943c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d doesn't exists\n", 944c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, i); 945c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 946c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 947c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 948c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_parse_streaming(dev, intf); 949c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 950c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 951c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 952b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_INPUT_TERMINAL: 953c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 8) { 954c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 955c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL error\n", 956c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 957c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 958c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 959c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 960c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure the terminal type MSB is not null, otherwise it 961c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * could be confused with a unit. 962c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 9639bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich type = get_unaligned_le16(&buffer[4]); 964c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((type & 0xff00) == 0) { 965c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 966c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL %d has invalid " 967c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "type 0x%04x, skipping\n", udev->devnum, 968c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, 969c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[3], type); 970c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 971c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 972c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 973c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = 0; 974c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = 0; 975c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 8; 976c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 977b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (type == UVC_ITT_CAMERA) { 978c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 15 ? buffer[14] : 0; 979c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 15; 980c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 981b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart } else if (type == UVC_ITT_MEDIA_TRANSPORT_INPUT) { 982c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 9 ? buffer[8] : 0; 983c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 10 + n ? buffer[9+n] : 0; 984c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart len = 10; 985c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 986c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 987c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < len + n + p) { 988c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 989c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d INPUT_TERMINAL error\n", 990c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 991c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 992c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 993c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 9948ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart term = uvc_alloc_entity(type | UVC_TERM_INPUT, buffer[3], 9958ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 1, n + p); 996c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL) 997c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 998c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 999b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) { 1000c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.bControlSize = n; 1001c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.bmControls = (__u8 *)term + sizeof *term; 1002c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wObjectiveFocalLengthMin = 10039bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[8]); 1004c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wObjectiveFocalLengthMax = 10059bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[10]); 1006c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->camera.wOcularFocalLength = 10079bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[12]); 1008c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->camera.bmControls, &buffer[15], n); 1009b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart } else if (UVC_ENTITY_TYPE(term) == 1010b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_ITT_MEDIA_TRANSPORT_INPUT) { 1011c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bControlSize = n; 1012c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bmControls = (__u8 *)term + sizeof *term; 1013c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bTransportModeSize = p; 1014c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart term->media.bmTransportModes = (__u8 *)term 1015c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart + sizeof *term + n; 1016c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->media.bmControls, &buffer[9], n); 1017c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(term->media.bmTransportModes, &buffer[10+n], p); 1018c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1019c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1020c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[7] != 0) 1021c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[7], term->name, 1022c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof term->name); 1023b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart else if (UVC_ENTITY_TYPE(term) == UVC_ITT_CAMERA) 1024c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Camera %u", buffer[3]); 1025b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart else if (UVC_ENTITY_TYPE(term) == UVC_ITT_MEDIA_TRANSPORT_INPUT) 1026c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Media %u", buffer[3]); 1027c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1028c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Input %u", buffer[3]); 1029c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1030c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&term->list, &dev->entities); 1031c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1032c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1033b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_OUTPUT_TERMINAL: 1034c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 9) { 1035c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1036c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d OUTPUT_TERMINAL error\n", 1037c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1038c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1039c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1040c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1041c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Make sure the terminal type MSB is not null, otherwise it 1042c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * could be confused with a unit. 1043c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 10449bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich type = get_unaligned_le16(&buffer[4]); 1045c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((type & 0xff00) == 0) { 1046c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1047c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d OUTPUT_TERMINAL %d has invalid " 1048c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "type 0x%04x, skipping\n", udev->devnum, 1049c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart alts->desc.bInterfaceNumber, buffer[3], type); 1050c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1051c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1052c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10538ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart term = uvc_alloc_entity(type | UVC_TERM_OUTPUT, buffer[3], 10548ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart 1, 0); 1055c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL) 1056c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1057c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10588ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(term->baSourceID, &buffer[7], 1); 1059c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1060c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[8] != 0) 1061c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[8], term->name, 1062c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof term->name); 1063c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1064c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(term->name, "Output %u", buffer[3]); 1065c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1066c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&term->list, &dev->entities); 1067c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1068c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1069b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1070c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 5 ? buffer[4] : 0; 1071c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1072c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 5 || buflen < 6 + p) { 1073c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1074c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d SELECTOR_UNIT error\n", 1075c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1076c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1077c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1078c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10798ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, 0); 1080c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1081c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1082c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 10838ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[5], p); 1084c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1085c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[5+p] != 0) 1086c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[5+p], unit->name, 1087c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1088c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1089c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Selector %u", buffer[3]); 1090c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1091c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1092c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1093c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1094b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 1095c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 8 ? buffer[7] : 0; 1096c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = dev->uvc_version >= 0x0110 ? 10 : 9; 1097c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1098c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < p + n) { 1099c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1100c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d PROCESSING_UNIT error\n", 1101c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1102c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1103c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1104c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11058ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], 2, n); 1106c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1107c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1108c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11098ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[4], 1); 1110c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.wMaxMultiplier = 11119bc6218dc1dc7bd421f3d141241c8e0e70c4e92bMichael Hennerich get_unaligned_le16(&buffer[5]); 1112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bControlSize = buffer[7]; 1113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bmControls = (__u8 *)unit + sizeof *unit; 1114c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->processing.bmControls, &buffer[8], n); 1115c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (dev->uvc_version >= 0x0110) 1116c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->processing.bmVideoStandards = buffer[9+n]; 1117c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1118c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[8+n] != 0) 1119c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[8+n], unit->name, 1120c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1121c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1122c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Processing %u", buffer[3]); 1123c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1124c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1125c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1127b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart p = buflen >= 22 ? buffer[21] : 0; 1129c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart n = buflen >= 24 + p ? buffer[22+p] : 0; 1130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1131c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buflen < 24 + p + n) { 1132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " 1133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "interface %d EXTENSION_UNIT error\n", 1134c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devnum, alts->desc.bInterfaceNumber); 1135c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -EINVAL; 1136c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1137c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 11388ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit = uvc_alloc_entity(buffer[2], buffer[3], p + 1, n); 1139c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (unit == NULL) 1140c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1141c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1142c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); 1143c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bNumControls = buffer[20]; 11448ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart memcpy(unit->baSourceID, &buffer[22], p); 1145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unit->extension.bControlSize = buffer[22+p]; 11468ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart unit->extension.bmControls = (__u8 *)unit + sizeof *unit; 1147c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart memcpy(unit->extension.bmControls, &buffer[23+p], n); 1148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (buffer[23+p+n] != 0) 1150c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_string(udev, buffer[23+p+n], unit->name, 1151c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sizeof unit->name); 1152c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1153c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart sprintf(unit->name, "Extension %u", buffer[3]); 1154c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1155c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_add_tail(&unit->list, &dev->entities); 1156c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1157c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1158c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 1159c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE " 1160c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "descriptor (%u)\n", buffer[2]); 1161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1162c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1164c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1166c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1167c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_parse_control(struct uvc_device *dev) 1168c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_interface *alts = dev->intf->cur_altsetting; 1170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart unsigned char *buffer = alts->extra; 1171c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int buflen = alts->extralen; 1172c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret; 1173c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1174c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Parse the default alternate setting only, as the UVC specification 1175c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * defines a single alternate setting, the default alternate setting 1176c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * zero. 1177c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1178c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1179c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (buflen > 2) { 1180c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_parse_vendor_control(dev, buffer, buflen) || 1181c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer[1] != USB_DT_CS_INTERFACE) 1182c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto next_descriptor; 1183c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1184c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0) 1185c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return ret; 1186c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1187c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartnext_descriptor: 1188c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buflen -= buffer[0]; 1189c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart buffer += buffer[0]; 1190c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1191c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1192538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart /* Check if the optional status endpoint is present. Built-in iSight 1193538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * webcams have an interrupt endpoint but spit proprietary data that 1194538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * don't conform to the UVC status endpoint messages. Don't try to 1195538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart * handle the interrupt endpoint for those cameras. 1196538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart */ 1197538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart if (alts->desc.bNumEndpoints == 1 && 1198538e7a004bf960c96c7e9eb836b59989eb5f5b7fLaurent Pinchart !(dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT)) { 1199c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_host_endpoint *ep = &alts->endpoint[0]; 1200c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_endpoint_descriptor *desc = &ep->desc; 1201c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1202c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (usb_endpoint_is_int_in(desc) && 1203c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(desc->wMaxPacketSize) >= 8 && 1204c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart desc->bInterval != 0) { 1205c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint " 1206c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "(addr %02x).\n", desc->bEndpointAddress); 1207c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->int_ep = ep; 1208c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1209c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1210c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1211c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1212c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1213c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1214c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 12158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * UVC device scan 1216c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1217c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1218c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 1219c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Scan the UVC descriptors to locate a chain starting at an Output Terminal 1220c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * and containing the following units: 1221c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 12228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * - one or more Output Terminals (USB Streaming or Display) 1223c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero or one Processing Unit 12248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * - zero, one or more single-input Selector Units 1225c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero or one multiple-input Selector Units, provided all inputs are 1226c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * connected to input terminals 1227c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * - zero, one or mode single-input Extension Units 12282c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart * - one or more Input Terminals (Camera, External or USB Streaming) 1229c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 12308e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * The terminal and units must match on of the following structures: 12318e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12328e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ITT_*(0) -> +---------+ +---------+ +---------+ -> TT_STREAMING(0) 12338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ... | SU{0,1} | -> | PU{0,1} | -> | XU{0,n} | ... 12348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * ITT_*(n) -> +---------+ +---------+ +---------+ -> TT_STREAMING(n) 12358e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12368e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * +---------+ +---------+ -> OTT_*(0) 12378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * TT_STREAMING -> | PU{0,1} | -> | XU{0,n} | ... 12388e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * +---------+ +---------+ -> OTT_*(n) 12398e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * 12408e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * The Processing Unit and Extension Units can be in any order. Additional 12418e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Extension Units connected to the main chain as single-unit branches are 12428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * also supported. Single-input Selector Units are ignored. 1243c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 12448e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_entity(struct uvc_video_chain *chain, 1245c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity) 1246c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1247c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (UVC_ENTITY_TYPE(entity)) { 1248b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1249c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1250c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- XU %d", entity->id); 1251c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12528ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins != 1) { 1253c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more " 1254c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "than 1 input pin.\n", entity->id); 1255c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1256c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1257c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1258c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1259c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1260b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 1261c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1262c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- PU %d", entity->id); 1263c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain->processing != NULL) { 1265c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found multiple " 1266c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "Processing Units in chain.\n"); 1267c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1268c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->processing = entity; 1271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1272c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1273b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1274c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1275c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- SU %d", entity->id); 1276c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1277c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Single-input selector units are ignored. */ 12788ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins == 1) 1279c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1280c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain->selector != NULL) { 1282c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " 1283c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "Units in chain.\n"); 1284c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1285c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1286c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->selector = entity; 1288c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1289c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1290b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_VENDOR_SPECIFIC: 1291b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_CAMERA: 1292b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_ITT_MEDIA_TRANSPORT_INPUT: 1293c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1294c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- IT %d\n", entity->id); 1295c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1296c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1297c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 12984093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 12994093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_DISPLAY: 13004093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 13014093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13024093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart printk(" OT %d", entity->id); 13034093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart 13044093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart break; 13054093a5c4a3f59cba1a085bbf87b6ffdddc5a443dLaurent Pinchart 1306b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_TT_STREAMING: 13074057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (UVC_ENTITY_IS_ITERM(entity)) { 13084057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13094057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart printk(" <- IT %d\n", entity->id); 13104057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } else { 13114057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 13124057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart printk(" OT %d", entity->id); 1313ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 1314ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 1315ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart break; 1316ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 1317c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart default: 1318c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type " 1319c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity)); 1320c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1321c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1322c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13236241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&entity->chain, &chain->entities); 1324c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1325c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1326c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_forward(struct uvc_video_chain *chain, 1328c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity, struct uvc_entity *prev) 1329c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1330c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *forward; 1331c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int found; 1332c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1333c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Forward scan */ 1334c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart forward = NULL; 1335c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart found = 0; 1336c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1337c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart while (1) { 13388e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart forward = uvc_entity_by_reference(chain->dev, entity->id, 1339c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart forward); 1340c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (forward == NULL) 1341c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 13428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (forward == prev) 1343c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1344c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13458e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart switch (UVC_ENTITY_TYPE(forward)) { 13468e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_VC_EXTENSION_UNIT: 13478ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (forward->bNrInPins != 1) { 13488e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Extension unit %d " 13498e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "has more than 1 input pin.\n", 13508e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart entity->id); 13518e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 13528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1353c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13546241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&forward->chain, &chain->entities); 13558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) { 13568e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (!found) 13578e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" (->"); 13588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 13598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart printk(" XU %d", forward->id); 13608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart found = 1; 13618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 13628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart break; 13638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 13648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 13658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_DISPLAY: 13668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 13678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart case UVC_TT_STREAMING: 13688e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (UVC_ENTITY_IS_ITERM(forward)) { 13698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Unsupported input " 13708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "terminal %u.\n", forward->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(" OT %d", forward->id); 13808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart found = 1; 13818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 13828e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart break; 1383c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1384c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1385c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (found) 1386c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(")"); 1387c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1388c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1389c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1390c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 13918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain_backward(struct uvc_video_chain *chain, 13924057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity **_entity) 1393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 13944057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity *entity = *_entity; 1395c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *term; 13964057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart int id = -EINVAL, i; 1397c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1398c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart switch (UVC_ENTITY_TYPE(entity)) { 1399b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_EXTENSION_UNIT: 1400b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_PROCESSING_UNIT: 14018ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[0]; 1402c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1403c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1404b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart case UVC_VC_SELECTOR_UNIT: 1405c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Single-input selector units are ignored. */ 14068ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart if (entity->bNrInPins == 1) { 14078ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[0]; 1408c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 1409c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1410c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1411c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1412c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" <- IT"); 1413c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->selector = entity; 14158ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart for (i = 0; i < entity->bNrInPins; ++i) { 14168ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = entity->baSourceID[i]; 14178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart term = uvc_entity_by_id(chain->dev, id); 1418c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { 1419c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " 1420c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "input %d isn't connected to an " 1421c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "input terminal\n", entity->id, i); 1422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1423c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1424c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1426c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk(" %d", term->id); 1427c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14286241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_add_tail(&term->chain, &chain->entities); 14298e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_scan_chain_forward(chain, term, entity); 1430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1432c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_trace_param & UVC_TRACE_PROBE) 1433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart printk("\n"); 1434c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1435c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart id = 0; 1436c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart break; 14374057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14384057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_VENDOR_SPECIFIC: 14394057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_CAMERA: 14404057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_ITT_MEDIA_TRANSPORT_INPUT: 14414057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_VENDOR_SPECIFIC: 14424057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_DISPLAY: 14434057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_OTT_MEDIA_TRANSPORT_OUTPUT: 14444057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart case UVC_TT_STREAMING: 14458ca5a639f4f3eb8958a7e270fcff7516374637a5Laurent Pinchart id = UVC_ENTITY_IS_OTERM(entity) ? entity->baSourceID[0] : 0; 14464057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart break; 1447c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1448c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14494057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (id <= 0) { 14504057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart *_entity = NULL; 14514057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return id; 14524057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } 14534057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14544057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart entity = uvc_entity_by_id(chain->dev, id); 14554057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (entity == NULL) { 14564057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found reference to " 14574057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart "unknown entity %d.\n", id); 14584057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return -EINVAL; 14594057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart } 14604057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart 14614057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart *_entity = entity; 14624057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return 0; 1463c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1464c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_scan_chain(struct uvc_video_chain *chain, 14664057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart struct uvc_entity *term) 1467c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1468c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *entity, *prev; 1469c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14704057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain:"); 1471ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart 14724057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart entity = term; 14734057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart prev = NULL; 14748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 14754057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart while (entity != NULL) { 14764057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart /* Entity must not be part of an existing chain */ 14778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (entity->chain.next || entity->chain.prev) { 14788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_DESCR, "Found reference to " 14794057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart "entity %d already in chain.\n", entity->id); 14808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1481c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1482c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1483c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Process entity */ 14848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain_entity(chain, entity) < 0) 14858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1486c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Forward scan */ 14888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain_forward(chain, entity, prev) < 0) 14898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -EINVAL; 1490c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1491c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Backward scan */ 14924057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart prev = entity; 14934057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart if (uvc_scan_chain_backward(chain, &entity) < 0) 14944057ac6ca9a77c4275b34b5925ab5c99557913b1Laurent Pinchart return -EINVAL; 1495c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1496c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 14978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 14988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 14998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15006241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchartstatic unsigned int uvc_print_terms(struct list_head *terms, u16 dir, 15016241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart char *buffer) 15028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 15038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_entity *term; 15048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart unsigned int nterms = 0; 15058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart char *p = buffer; 15068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(term, terms, chain) { 15086241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (!UVC_ENTITY_IS_TERM(term) || 15096241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart UVC_TERM_DIRECTION(term) != dir) 15106241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart continue; 15116241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart 15126241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (nterms) 15138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart p += sprintf(p, ","); 15146241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart if (++nterms >= 4) { 15156241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += sprintf(p, "..."); 15166241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart break; 15178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 15186241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += sprintf(p, "%u", term->id); 1519ff924203c9e4a5bc218143bc37182851185f4e5fLaurent Pinchart } 1520c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15218e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return p - buffer; 15228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 15238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic const char *uvc_print_chain(struct uvc_video_chain *chain) 15258e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 15268e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart static char buffer[43]; 15278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart char *p = buffer; 15288e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15296241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart p += uvc_print_terms(&chain->entities, UVC_TERM_INPUT, p); 15308e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart p += sprintf(p, " -> "); 15316241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart uvc_print_terms(&chain->entities, UVC_TERM_OUTPUT, p); 15328e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return buffer; 1534c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1535c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1536c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 153735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart * Scan the device for video chains and register video devices. 1538c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * 15398e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Chains are scanned starting at their output terminals and walked backwards. 1540c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 154135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchartstatic int uvc_scan_device(struct uvc_device *dev) 1542c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 15438e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_video_chain *chain; 1544c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_entity *term; 1545c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1546c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart list_for_each_entry(term, &dev->entities, list) { 15478e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (!UVC_ENTITY_IS_OTERM(term)) 1548c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1549c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15508e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* If the terminal is already included in a chain, skip it. 15518e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * This can happen for chains that have multiple output 15528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * terminals, where all output terminals beside the first one 15538e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * will be inserted in the chain in forward scans. 15548e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 15558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (term->chain.next || term->chain.prev) 1556c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart continue; 1557c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain = kzalloc(sizeof(*chain), GFP_KERNEL); 15598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (chain == NULL) 15608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -ENOMEM; 15618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15626241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart INIT_LIST_HEAD(&chain->entities); 15638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart mutex_init(&chain->ctrl_mutex); 15648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart chain->dev = dev; 15658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain(chain, term) < 0) { 15678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart kfree(chain); 15688e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 1569c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 15708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", 15728e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_print_chain(chain)); 15738e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_add_tail(&chain->list, &dev->chains); 1575c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1576c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (list_empty(&dev->chains)) { 1578c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "No valid video chain found.\n"); 1579c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1580c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1581c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1582c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1583c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1584c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 15868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Video device registration and unregistration 15878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 15888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 1590716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Delete the UVC device. 1591716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1592716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Called by the kernel when the last reference to the uvc_device structure 1593716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * is released. 1594716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1595716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * As this function is called after or during disconnect(), all URBs have 1596716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * already been canceled by the USB core. There is no need to kill the 1597716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * interrupt URB manually. 1598716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1599716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_delete(struct uvc_device *dev) 1600716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1601716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct list_head *p, *n; 1602716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1603716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(dev->intf); 1604716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_dev(dev->udev); 1605716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1606716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_status_cleanup(dev); 1607716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_ctrl_cleanup_device(dev); 1608716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16095a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (dev->vdev.dev) 16105a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart v4l2_device_unregister(&dev->vdev); 16115a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16125a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_devnode_is_registered(&dev->mdev.devnode)) 16135a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart media_device_unregister(&dev->mdev); 16145a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 16155a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 1616716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->chains) { 1617716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_video_chain *chain; 1618716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart chain = list_entry(p, struct uvc_video_chain, list); 1619716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(chain); 1620716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1621716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1622716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->entities) { 1623716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_entity *entity; 1624716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart entity = list_entry(p, struct uvc_entity, list); 16254ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16264ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_mc_cleanup_entity(entity); 16274ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 16288a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart if (entity->vdev) { 16298a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart video_device_release(entity->vdev); 16308a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart entity->vdev = NULL; 16318a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart } 1632716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(entity); 1633716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1634716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1635716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->streams) { 1636716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *streaming; 1637716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming = list_entry(p, struct uvc_streaming, list); 1638716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_driver_release_interface(&uvc_driver.driver, 1639716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming->intf); 1640716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(streaming->intf); 1641716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->format); 1642716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->header.bmaControls); 1643716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming); 1644716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1645716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1646716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(dev); 1647716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1648716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1649716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_release(struct video_device *vdev) 1650716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1651716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *stream = video_get_drvdata(vdev); 1652716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_device *dev = stream->dev; 1653716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1654716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the registered streams count and delete the device when it 1655716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * reaches zero. 1656716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1657716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1658716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 1659716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1660716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1661716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart/* 16628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Unregister the video devices. 16638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 16648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic void uvc_unregister_video(struct uvc_device *dev) 16658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 16668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 16678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1668716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Unregistering all video devices might result in uvc_delete() being 1669716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * called from inside the loop if there's no open file handle. To avoid 1670716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * that, increment the stream count before iterating over the streams 1671716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * and decrement it when done. 1672716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1673716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 1674716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 16768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream->vdev == NULL) 16778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 16788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1679716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart video_unregister_device(stream->vdev); 16808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 1681edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 1682edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup_stream(stream); 16838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1684716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1685716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the stream count and call uvc_delete explicitly if there 1686716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * are no stream left. 1687716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1688716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1689716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 16908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 16918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 16928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_video(struct uvc_device *dev, 16938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream) 16948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 16958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct video_device *vdev; 16968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 16978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 16988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Initialize the streaming interface with default streaming 16998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * parameters. 17008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_video_init(stream); 17028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to initialize the device " 17048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "(%d).\n", ret); 17058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1708edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init_stream(stream); 1709edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 17108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Register the device with V4L. */ 17118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev = video_device_alloc(); 17128e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (vdev == NULL) { 17138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n", 17148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -ENOMEM; 17168e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17188e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* We already hold a reference to dev->udev. The video device will be 17198e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * unregistered before the reference is released, so we don't need to 17208e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * get another one. 17218e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17225a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart vdev->v4l2_dev = &dev->vdev; 17238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev->fops = &uvc_fops; 1724716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart vdev->release = uvc_release; 1725954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) 1726954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil vdev->vfl_dir = VFL_DIR_TX; 17278e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart strlcpy(vdev->name, dev->name, sizeof vdev->name); 17288e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17298e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Set the driver data before calling video_register_device, otherwise 17308e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * uvc_v4l2_open might race us. 17318e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17328e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = vdev; 17338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_set_drvdata(vdev, stream); 17348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17358e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 17368e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", 17388e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17398e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 17408e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_device_release(vdev); 17418e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17438e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1744f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1745f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE; 1746f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart else 1747f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; 1748f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart 1749716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 17508e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 17518e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17528e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17538e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 17548e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Register all video devices in all chains. 17558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17568e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_terms(struct uvc_device *dev, 17576241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart struct uvc_video_chain *chain) 17588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 17608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_entity *term; 17618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17628e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17636241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_for_each_entry(term, &chain->entities, chain) { 17648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) 17658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream = uvc_stream_by_id(dev, term->id); 17688e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream == NULL) { 17698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_INFO, "No streaming interface found " 17708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "for terminal %u.", term->id); 17718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17728e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17738e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->chain = chain; 17758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_register_video(dev, stream); 17768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 17778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17788a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart 17798a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart term->vdev = stream->vdev; 17808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17828e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 17838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17848e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_chains(struct uvc_device *dev) 17868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_video_chain *chain; 17888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(chain, &dev->chains, list) { 17916241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart ret = uvc_register_terms(dev, chain); 17928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 17938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17944ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 17954ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 17964ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart ret = uvc_mc_register_entities(chain); 17974ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart if (ret < 0) { 17984ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_printk(KERN_INFO, "Failed to register entites " 17994ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart "(%d).\n", ret); 18004ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart } 18014ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 18028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 18038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 18058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 18068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 18088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * USB probe, disconnect, suspend and resume 18098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 18108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1811c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_probe(struct usb_interface *intf, 1812c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const struct usb_device_id *id) 1813c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1814c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = interface_to_usbdev(intf); 1815c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev; 1816c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret; 1817c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1818c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (id->idVendor && id->idProduct) 1819c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " 1820c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "(%04x:%04x)\n", udev->devpath, id->idVendor, 1821c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart id->idProduct); 1822c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1823c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", 1824c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devpath); 1825c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18262c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Allocate memory for the device and initialize it. */ 1827c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) 1828c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1829c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1830c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart INIT_LIST_HEAD(&dev->entities); 18318e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart INIT_LIST_HEAD(&dev->chains); 183235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart INIT_LIST_HEAD(&dev->streams); 1833716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_set(&dev->nstreams, 0); 183404a37e0f32f9882430bc1899899d2ed91b8aaf5bLaurent Pinchart atomic_set(&dev->users, 0); 18358fb91b33c6bfa3ac5e4ad76920b7bcd7bdbbb6d0Martin Rubli atomic_set(&dev->nmappings, 0); 1836c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1837c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev = usb_get_dev(udev); 1838c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intf = usb_get_intf(intf); 1839c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; 184073de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart dev->quirks = (uvc_quirks_param == -1) 184173de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart ? id->driver_info : uvc_quirks_param; 1842c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1843c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (udev->product != NULL) 1844d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(dev->name, udev->product, sizeof dev->name); 1845c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1846c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart snprintf(dev->name, sizeof dev->name, 1847c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "UVC Camera (%04x:%04x)", 1848c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1849c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1850c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18512c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Parse the Video Class control descriptor. */ 1852c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_parse_control(dev) < 0) { 1853c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " 1854c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "descriptors.\n"); 1855c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1856c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1857c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1858fba4578ee925110587ef9b8b6ddfabf2ce288071Laurent Pinchart uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n", 1859c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->uvc_version >> 8, dev->uvc_version & 0xff, 1860c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->product ? udev->product : "<unnamed>", 1861c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1862c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1863c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 186473de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart if (dev->quirks != id->driver_info) { 186573de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module " 186673de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart "parameter for testing purpose.\n", dev->quirks); 1867c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Please report required quirks to the " 1868c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "linux-uvc-devel mailing list.\n"); 1869c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1870c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18715a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register the media and V4L2 devices. */ 18725a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 18735a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.dev = &intf->dev; 18745a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); 18755a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (udev->serial) 18765a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.serial, udev->serial, 18775a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart sizeof(dev->mdev.serial)); 18785a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strcpy(dev->mdev.bus_info, udev->devpath); 18795a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); 1880fd3e5824824d1beaf376cd523c7418c5570851d4Mauro Carvalho Chehab dev->mdev.driver_version = LINUX_VERSION_CODE; 18815a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_device_register(&dev->mdev) < 0) 18825a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 18835a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 18845a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->vdev.mdev = &dev->mdev; 18855a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 18865a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) 18875a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 18885a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 18892c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize controls. */ 1890c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_ctrl_init_device(dev) < 0) 1891c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1892c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Scan the device for video chains. */ 189435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (uvc_scan_device(dev) < 0) 1895c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1896c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18975a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register video device nodes. */ 18988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_register_chains(dev) < 0) 18998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart goto error; 19008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 19012c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Save our data pointer in the interface data. */ 1902c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, dev); 1903c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19042c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize the interrupt URB. */ 1905c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((ret = uvc_status_init(dev)) < 0) { 1906c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Unable to initialize the status " 1907c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "endpoint (%d), status interrupt will not be " 1908c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "supported.\n", ret); 1909c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1910c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1911c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); 19123dae8b41dc5651f8eb22cf310e8b116480ba25b7Matthew Garrett usb_enable_autosuspend(udev); 1913c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1914c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1915c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pincharterror: 1916716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1917c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENODEV; 1918c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1919c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1920c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void uvc_disconnect(struct usb_interface *intf) 1921c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1922c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 1923c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1924c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Set the USB interface data to NULL. This can be done outside the 1925c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * lock, as there's no other reader. 1926c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1927c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, NULL); 1928c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1929b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1930b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOSTREAMING) 1931c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return; 1932c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1933c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->state |= UVC_DEV_DISCONNECTED; 1934a9e285856112e5e721b6a341d15437a164128b30Laurent Pinchart 1935716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1936c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1937c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1938c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_suspend(struct usb_interface *intf, pm_message_t message) 1939c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1940c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 194135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1942c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1943c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", 1944c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1945c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1946c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Controls are cached on the fly so they don't need to be saved. */ 1947b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1948b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOCONTROL) 1949c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return uvc_status_suspend(dev); 1950c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 195135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 195235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 195335f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return uvc_video_suspend(stream); 1954c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1955c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 195635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " 195735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 195835f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 1959c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1960c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19619b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int __uvc_resume(struct usb_interface *intf, int reset) 1962c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1963c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 196435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1965c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1966c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", 1967c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1968c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1969b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1970b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOCONTROL) { 19717564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil if (reset) { 19727564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil int ret = uvc_ctrl_resume_device(dev); 19737564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil 19747564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil if (ret < 0) 19757564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil return ret; 19767564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil } 1977c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1978c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return uvc_status_resume(dev); 1979c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1980c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 198135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 198235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 1983d59a7b1dbce8b972ec2dc9fcaaae0bfa23687423Ming Lei return uvc_video_resume(stream, reset); 1984c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1985c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 198635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " 198735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 198835f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 1989c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1990c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19919b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_resume(struct usb_interface *intf) 19929b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 19939b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 0); 19949b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 19959b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 19969b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_reset_resume(struct usb_interface *intf) 19979b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 19989b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 1); 19999b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 20009b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 2001c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 2002310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart * Module parameters 2003310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart */ 2004310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2005310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_get(char *buffer, struct kernel_param *kp) 2006310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2007310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (uvc_clock_param == CLOCK_MONOTONIC) 2008310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_MONOTONIC"); 2009310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2010310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_REALTIME"); 2011310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2012310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2013310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_set(const char *val, struct kernel_param *kp) 2014310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2015310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strncasecmp(val, "clock_", strlen("clock_")) == 0) 2016310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart val += strlen("clock_"); 2017310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2018310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strcasecmp(val, "monotonic") == 0) 2019310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_MONOTONIC; 2020310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else if (strcasecmp(val, "realtime") == 0) 2021310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_REALTIME; 2022310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2023310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return -EINVAL; 2024310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2025310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return 0; 2026310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2027310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2028310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, 2029310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart &uvc_clock_param, S_IRUGO|S_IWUSR); 2030310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(clock, "Video buffers timestamp clock"); 2031310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); 2032310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); 2033310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); 2034310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(quirks, "Forced device quirks"); 2035310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); 2036310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(trace, "Trace level bitmask"); 2037310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); 2038310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(timeout, "Streaming control requests timeout"); 2039310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2040310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart/* ------------------------------------------------------------------------ 2041c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Driver initialization and cleanup 2042c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2043c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2044c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 2045c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * The Logitech cameras listed below have their interface class set to 2046c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * VENDOR_SPEC because they don't announce themselves as UVC devices, even 2047c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * though they are compliant. 2048c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2049c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct usb_device_id uvc_ids[] = { 20504eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart /* LogiLink Wireless Webcam */ 20514eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 20524eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 20534eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idVendor = 0x0416, 20544eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idProduct = 0xa91a, 20554eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 20564eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceSubClass = 1, 20574eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceProtocol = 0, 20584eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2059bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart /* Genius eFace 2025 */ 2060bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2061bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2062bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idVendor = 0x0458, 2063bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idProduct = 0x706e, 2064bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2065bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceSubClass = 1, 2066bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceProtocol = 0, 2067bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2068c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam NX-6000 */ 2069c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2070c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2071c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2072c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x00f8, 2073c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2074c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2075c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2076c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2077c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam VX-7000 */ 2078c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2079c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2080c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2081c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0723, 2082c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2083c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2084c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2085c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2086c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Fusion */ 2087c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2088c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2089c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2090c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c1, 2091c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2092c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2093c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2094c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Orbit MP */ 2095c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2096c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2097c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2098c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c2, 2099c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2100c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2101c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2102c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro for Notebook */ 2103c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2104c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2105c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2106c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c3, 2107c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2108c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2109c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2110c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro 5000 */ 2111c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2114c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c5, 2115c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2116c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2117c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2118c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Dell Notebook */ 2119c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2120c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2121c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2122c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c6, 2123c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2124c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2125c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Cisco VT Camera II */ 2127c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2129c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c7, 2131c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 213486d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart /* Chicony CNF7129 (Asus EEE 100HE) */ 213586d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 213686d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 213786d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idVendor = 0x04f2, 213886d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idProduct = 0xb071, 213986d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 214086d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceSubClass = 1, 214186d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceProtocol = 0, 214286d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE }, 2143f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ 2144f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2145f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2146f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idVendor = 0x058f, 2147f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idProduct = 0x3820, 2148f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2149f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceSubClass = 1, 2150f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceProtocol = 0, 2151f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 21523efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart /* Dell XPS m1530 */ 21533efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 21543efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 21553efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idVendor = 0x05a9, 21563efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idProduct = 0x2640, 21573efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 21583efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceSubClass = 1, 21593efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceProtocol = 0, 21603efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2161c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Apple Built-In iSight */ 21622c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2163c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2164c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x05ac, 2165c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8501, 21662c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 21672c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 21682c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 2169c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2170c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | UVC_QUIRK_BUILTIN_ISIGHT }, 2171949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov /* Foxlink ("HP Webcam" on HP Mini 5103) */ 2172949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2173949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov | USB_DEVICE_ID_MATCH_INT_INFO, 2174949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idVendor = 0x05c8, 2175949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idProduct = 0x0403, 2176949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceClass = USB_CLASS_VIDEO, 2177949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceSubClass = 1, 2178949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceProtocol = 0, 2179949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2180c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Genesys Logic USB 2.0 PC Camera */ 21812c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2182c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 21832c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idVendor = 0x05e3, 21842c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idProduct = 0x0505, 21852c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 21862c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 21872c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 21882c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2189e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart /* Hercules Classic Silver */ 2190e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2191e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2192e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idVendor = 0x06f8, 2193e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idProduct = 0x300c, 2194e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2195e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceSubClass = 1, 2196e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceProtocol = 0, 2197e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2198d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Vega */ 2199d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2200d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2201d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2202d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x332d, 2203d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2204d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2205d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2206d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2207d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro - Minoru3D */ 2208d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2209d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2210d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2211d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3410, 2212d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2213d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2214d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2215d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2216d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Venus - Minoru3D */ 2217d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 221850144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 221950144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .idVendor = 0x0ac8, 2220d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3420, 222150144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 222250144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceSubClass = 1, 222350144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceProtocol = 0, 222450144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2225d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart /* Ophir Optronics - SPCAM 620U */ 2226d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2227d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2228d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idVendor = 0x0bd3, 2229d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idProduct = 0x0555, 2230d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2231d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceSubClass = 1, 2232d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceProtocol = 0, 2233d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2234c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* MT6227 */ 2235c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2236c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2237c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x0e8d, 2238c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0004, 2239c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2240c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2241c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2242bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2243bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart | UVC_QUIRK_PROBE_DEF }, 22449275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart /* IMC Networks (Medion Akoya) */ 22459275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 22469275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 22479275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idVendor = 0x13d3, 22489275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idProduct = 0x5103, 22499275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22509275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceSubClass = 1, 22519275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceProtocol = 0, 22529275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2253d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart /* JMicron USB2.0 XGA WebCam */ 2254d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2255d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2256d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idVendor = 0x152d, 2257d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idProduct = 0x0310, 2258d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2259d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceSubClass = 1, 2260d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceProtocol = 0, 2261d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2262c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (HP Spartan) */ 2263c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2264c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2265c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2266c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x5212, 2267c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2268c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 227025e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2271562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart /* Syntek (Samsung Q310) */ 2272562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2273562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2274562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idVendor = 0x174f, 2275562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idProduct = 0x5931, 2276562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2277562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceSubClass = 1, 2278562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceProtocol = 0, 2279562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2280f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart /* Syntek (Packard Bell EasyNote MX52 */ 2281f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2282f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2283f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idVendor = 0x174f, 2284f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idProduct = 0x8a12, 2285f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2286f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceSubClass = 1, 2287f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceProtocol = 0, 2288f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2289f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Syntek (Asus F9SG) */ 229025e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 229125e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 229225e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idVendor = 0x174f, 229325e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idProduct = 0x8a31, 229425e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 229525e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceSubClass = 1, 229625e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceProtocol = 0, 2297c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2298c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (Asus U3S) */ 2299c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2300c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2301c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2302c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8a33, 2303c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2304c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2305c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2306c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 23070ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart /* Syntek (JAOtech Smart Terminal) */ 23080ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23090ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23100ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idVendor = 0x174f, 23110ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idProduct = 0x8a34, 23120ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23130ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceSubClass = 1, 23140ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceProtocol = 0, 23150ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 231670092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart /* Miricle 307K */ 231770092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 231870092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 231970092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idVendor = 0x17dc, 232070092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idProduct = 0x0202, 232170092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 232270092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceSubClass = 1, 232370092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceProtocol = 0, 232470092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2325849a3aba2d9830dc2a78a66078023e7e5ac26e15Filipe Rosset /* Lenovo Thinkpad SL400/SL500 */ 23262f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23272f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23282f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idVendor = 0x17ef, 23292f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idProduct = 0x480b, 23302f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23312f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceSubClass = 1, 23322f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceProtocol = 0, 23332f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 23342d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart /* Aveo Technology USB 2.0 Camera */ 23352d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23362d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23372d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idVendor = 0x1871, 23382d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idProduct = 0x0306, 23392d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23402d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceSubClass = 1, 23412d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceProtocol = 0, 23425bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 23435bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart | UVC_QUIRK_PROBE_EXTRAFIELDS }, 2344c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Ecamm Pico iMage */ 2345c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2346c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2347c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x18cd, 2348c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0xcafe, 2349c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2350c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2351c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2352c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, 23532bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart /* Manta MM-353 Plako */ 23542bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23552bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23562bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idVendor = 0x18ec, 23572bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idProduct = 0x3188, 23582bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23592bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceSubClass = 1, 23602bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceProtocol = 0, 23612bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2362ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart /* FSC WebCam V30S */ 2363ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2364ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2365ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idVendor = 0x18ec, 2366ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idProduct = 0x3288, 2367ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2368ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceSubClass = 1, 2369ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceProtocol = 0, 2370ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 23711e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart /* Arkmicro unbranded */ 23721e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23731e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23741e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idVendor = 0x18ec, 23751e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idProduct = 0x3290, 23761e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23771e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceSubClass = 1, 23781e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceProtocol = 0, 23791e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2380fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari /* The Imaging Source USB CCD cameras */ 2381fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2382fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari | USB_DEVICE_ID_MATCH_INT_INFO, 2383fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idVendor = 0x199e, 2384fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idProduct = 0x8102, 2385fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2386fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceSubClass = 1, 2387fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceProtocol = 0 }, 2388c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Bodelin ProScopeHR */ 2389c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2390c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_DEV_HI 2391c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2392c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x19ab, 2393c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x1000, 2394c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bcdDevice_hi = 0x0126, 2395c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2396c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2397c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2398c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STATUS_INTERVAL }, 23993bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart /* MSI StarCam 370i */ 24003bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24013bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24023bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idVendor = 0x1b3b, 24033bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idProduct = 0x2951, 24043bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24053bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceSubClass = 1, 24063bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceProtocol = 0, 24073bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2408c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* SiGma Micro USB Web Camera */ 2409c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2410c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2411c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x1c4f, 2412c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x3000, 2413c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2414c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2415c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2416c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2417d732c44c1a4b54e3c59ad92069bc2fd848aca5f3Laurent Pinchart | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, 2418c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Generic USB Video Class */ 2419c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, 2420c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart {} 2421c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2423c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DEVICE_TABLE(usb, uvc_ids); 2424c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstruct uvc_driver uvc_driver = { 2426c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver = { 2427c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "uvcvideo", 2428c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .probe = uvc_probe, 2429c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .disconnect = uvc_disconnect, 2430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .suspend = uvc_suspend, 2431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .resume = uvc_resume, 24329b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart .reset_resume = uvc_reset_resume, 2433c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .id_table = uvc_ids, 2434c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .supports_autosuspend = 1, 2435c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 2436c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2437c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2438c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int __init uvc_init(void) 2439c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2440edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher int ret; 2441c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2442edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init(); 2443edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2444edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher ret = usb_register(&uvc_driver.driver); 2445edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher if (ret < 0) { 2446edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2447edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return ret; 2448edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher } 2449edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2450edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); 2451edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return 0; 2452c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2453c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2454c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void __exit uvc_cleanup(void) 2455c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2456c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_deregister(&uvc_driver.driver); 2457edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2458c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2459c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2460c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_init(uvc_init); 2461c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_exit(uvc_cleanup); 2462c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2463c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_AUTHOR(DRIVER_AUTHOR); 2464c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DESCRIPTION(DRIVER_DESC); 2465c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_LICENSE("GPL"); 2466c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_VERSION(DRIVER_VERSION); 2467f87086e302300fdff1bd32049deb7a7f3e3de7daHans Verkuil 2468