uvc_driver.c revision 17706f5653a90ff277b5b36c2eb60ff872df5e7a
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; 15650550513c7a559b4933c5e1d47fbd15d15f6078d5Laurent Pinchart v4l2_prio_init(&chain->prio); 15668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15678be8ec6ea58bd77338f6ffa2f6d2acfc88b835f4Laurent Pinchart term->flags |= UVC_ENTITY_FLAG_DEFAULT; 15688be8ec6ea58bd77338f6ffa2f6d2acfc88b835f4Laurent Pinchart 15698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_scan_chain(chain, term) < 0) { 15708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart kfree(chain); 15718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 1572c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 15738e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Found a valid video chain (%s).\n", 15758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_print_chain(chain)); 15768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_add_tail(&chain->list, &dev->chains); 1578c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1579c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (list_empty(&dev->chains)) { 1581c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "No valid video chain found.\n"); 1582c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -1; 1583c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1584c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1585c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1586c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1587c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 15888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 15898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Video device registration and unregistration 15908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 15918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 15928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 1593716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Delete the UVC device. 1594716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1595716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * Called by the kernel when the last reference to the uvc_device structure 1596716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * is released. 1597716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * 1598716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * As this function is called after or during disconnect(), all URBs have 1599716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * already been canceled by the USB core. There is no need to kill the 1600716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * interrupt URB manually. 1601716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1602716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_delete(struct uvc_device *dev) 1603716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1604716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct list_head *p, *n; 1605716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1606716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(dev->intf); 1607716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_dev(dev->udev); 1608716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1609716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_status_cleanup(dev); 1610716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_ctrl_cleanup_device(dev); 1611716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16125a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (dev->vdev.dev) 16135a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart v4l2_device_unregister(&dev->vdev); 16145a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16155a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_devnode_is_registered(&dev->mdev.devnode)) 16165a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart media_device_unregister(&dev->mdev); 16175a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 16185a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 1619716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->chains) { 1620716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_video_chain *chain; 1621716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart chain = list_entry(p, struct uvc_video_chain, list); 1622716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(chain); 1623716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1624716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1625716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->entities) { 1626716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_entity *entity; 1627716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart entity = list_entry(p, struct uvc_entity, list); 16284ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 16294ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_mc_cleanup_entity(entity); 16304ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 16318a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart if (entity->vdev) { 16328a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart video_device_release(entity->vdev); 16338a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart entity->vdev = NULL; 16348a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart } 1635716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(entity); 1636716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1637716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1638716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart list_for_each_safe(p, n, &dev->streams) { 1639716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *streaming; 1640716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming = list_entry(p, struct uvc_streaming, list); 1641716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_driver_release_interface(&uvc_driver.driver, 1642716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart streaming->intf); 1643716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart usb_put_intf(streaming->intf); 1644716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->format); 1645716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming->header.bmaControls); 1646716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(streaming); 1647716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart } 1648716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1649716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart kfree(dev); 1650716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1651716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1652716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchartstatic void uvc_release(struct video_device *vdev) 1653716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart{ 1654716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_streaming *stream = video_get_drvdata(vdev); 1655716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart struct uvc_device *dev = stream->dev; 1656716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1657716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the registered streams count and delete the device when it 1658716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * reaches zero. 1659716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1660716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1661716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 1662716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart} 1663716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1664716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart/* 16658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Unregister the video devices. 16668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 16678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic void uvc_unregister_video(struct uvc_device *dev) 16688e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 16698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 16708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1671716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Unregistering all video devices might result in uvc_delete() being 1672716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * called from inside the loop if there's no open file handle. To avoid 1673716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * that, increment the stream count before iterating over the streams 1674716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * and decrement it when done. 1675716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1676716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 1677716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 16788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 16798e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream->vdev == NULL) 16808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 16818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1682716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart video_unregister_device(stream->vdev); 16838e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 1684edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 1685edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup_stream(stream); 16868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 1687716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart 1688716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart /* Decrement the stream count and call uvc_delete explicitly if there 1689716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart * are no stream left. 1690716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart */ 1691716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart if (atomic_dec_and_test(&dev->nstreams)) 1692716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_delete(dev); 16938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 16948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 16958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_video(struct uvc_device *dev, 16968e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream) 16978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 16988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct video_device *vdev; 16998e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17008e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17018e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Initialize the streaming interface with default streaming 17028e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * parameters. 17038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_video_init(stream); 17058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17068e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to initialize the device " 17078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "(%d).\n", ret); 17088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1711edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init_stream(stream); 1712edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 17138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Register the device with V4L. */ 17148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev = video_device_alloc(); 17158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (vdev == NULL) { 17168e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n", 17178e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17188e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return -ENOMEM; 17198e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17208e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17218e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* We already hold a reference to dev->udev. The video device will be 17228e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * unregistered before the reference is released, so we don't need to 17238e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * get another one. 17248e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17255a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart vdev->v4l2_dev = &dev->vdev; 17268e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart vdev->fops = &uvc_fops; 1727716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart vdev->release = uvc_release; 17280550513c7a559b4933c5e1d47fbd15d15f6078d5Laurent Pinchart vdev->prio = &stream->chain->prio; 17290550513c7a559b4933c5e1d47fbd15d15f6078d5Laurent Pinchart set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags); 1730954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) 1731954f340fc7f2fa2ae8812670da49e828d2686d8eHans Verkuil vdev->vfl_dir = VFL_DIR_TX; 17328e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart strlcpy(vdev->name, dev->name, sizeof vdev->name); 17338e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17348e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Set the driver data before calling video_register_device, otherwise 17358e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * uvc_v4l2_open might race us. 17368e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17378e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = vdev; 17388e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_set_drvdata(vdev, stream); 17398e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17408e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 17418e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) { 17428e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_ERR, "Failed to register video device (%d).\n", 17438e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret); 17448e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->vdev = NULL; 17458e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart video_device_release(vdev); 17468e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17478e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17488e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1749f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1750f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE; 1751f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart else 1752f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT; 1753f887e99ae2210e23c9726b6f146938a84f6acc47Laurent Pinchart 1754716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_inc(&dev->nstreams); 17558e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 17568e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17578e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17588e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* 17598e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * Register all video devices in all chains. 17608e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 17618e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_terms(struct uvc_device *dev, 17626241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart struct uvc_video_chain *chain) 17638e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17648e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_streaming *stream; 17658e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_entity *term; 17668e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17678e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17686241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart list_for_each_entry(term, &chain->entities, chain) { 17698e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (UVC_ENTITY_TYPE(term) != UVC_TT_STREAMING) 17708e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17718e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17728e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream = uvc_stream_by_id(dev, term->id); 17738e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (stream == NULL) { 17748e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart uvc_printk(KERN_INFO, "No streaming interface found " 17758e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart "for terminal %u.", term->id); 17768e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart continue; 17778e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17788e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17798e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart stream->chain = chain; 17808e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart ret = uvc_register_video(dev, stream); 17818e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 17828e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17838a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart 17848a65a9485832f90e18e2f7069b75a4181e2840c0Laurent Pinchart term->vdev = stream->vdev; 17858e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 17868e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17878e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 17888e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 17898e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17908e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchartstatic int uvc_register_chains(struct uvc_device *dev) 17918e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart{ 17928e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart struct uvc_video_chain *chain; 17938e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart int ret; 17948e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 17958e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart list_for_each_entry(chain, &dev->chains, list) { 17966241d8ca1dc27356180011dff4d93a3c5b3cbd76Laurent Pinchart ret = uvc_register_terms(dev, chain); 17978e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (ret < 0) 17988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return ret; 17994ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart 18004ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 18014ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart ret = uvc_mc_register_entities(chain); 18024ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart if (ret < 0) { 18034ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart uvc_printk(KERN_INFO, "Failed to register entites " 18044ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart "(%d).\n", ret); 18054ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart } 18064ffc2d89f38a7fbb3b24adb7fb066a159c351c11Laurent Pinchart#endif 18078e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart } 18088e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18098e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart return 0; 18108e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart} 18118e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 18128e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart/* ------------------------------------------------------------------------ 18138e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart * USB probe, disconnect, suspend and resume 18148e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart */ 18158e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 1816c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_probe(struct usb_interface *intf, 1817c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart const struct usb_device_id *id) 1818c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1819c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct usb_device *udev = interface_to_usbdev(intf); 1820c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev; 1821c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart int ret; 1822c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1823c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (id->idVendor && id->idProduct) 1824c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " 1825c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "(%04x:%04x)\n", udev->devpath, id->idVendor, 1826c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart id->idProduct); 1827c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1828c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", 1829c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->devpath); 1830c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18312c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Allocate memory for the device and initialize it. */ 1832c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) 1833c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENOMEM; 1834c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1835c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart INIT_LIST_HEAD(&dev->entities); 18368e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart INIT_LIST_HEAD(&dev->chains); 183735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart INIT_LIST_HEAD(&dev->streams); 1838716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart atomic_set(&dev->nstreams, 0); 18398fb91b33c6bfa3ac5e4ad76920b7bcd7bdbbb6d0Martin Rubli atomic_set(&dev->nmappings, 0); 184017706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_init(&dev->lock); 1841c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1842c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->udev = usb_get_dev(udev); 1843c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intf = usb_get_intf(intf); 1844c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; 184573de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart dev->quirks = (uvc_quirks_param == -1) 184673de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart ? id->driver_info : uvc_quirks_param; 1847c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1848c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (udev->product != NULL) 1849d0ebf3073f8812464c9f6014d6cee09ab37c3fb5Laurent Pinchart strlcpy(dev->name, udev->product, sizeof dev->name); 1850c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart else 1851c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart snprintf(dev->name, sizeof dev->name, 1852c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "UVC Camera (%04x:%04x)", 1853c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1854c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1855c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18562c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Parse the Video Class control descriptor. */ 1857c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_parse_control(dev) < 0) { 1858c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " 1859c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "descriptors.\n"); 1860c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1861c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1862c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1863fba4578ee925110587ef9b8b6ddfabf2ce288071Laurent Pinchart uvc_printk(KERN_INFO, "Found UVC %u.%02x device %s (%04x:%04x)\n", 1864c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->uvc_version >> 8, dev->uvc_version & 0xff, 1865c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart udev->product ? udev->product : "<unnamed>", 1866c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idVendor), 1867c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart le16_to_cpu(udev->descriptor.idProduct)); 1868c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 186973de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart if (dev->quirks != id->driver_info) { 187073de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart uvc_printk(KERN_INFO, "Forcing device quirks to 0x%x by module " 187173de3592c0da2313b25bac7789e9ea02c4b9f082Laurent Pinchart "parameter for testing purpose.\n", dev->quirks); 1872c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Please report required quirks to the " 1873c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "linux-uvc-devel mailing list.\n"); 1874c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1875c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18765a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register the media and V4L2 devices. */ 18775a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#ifdef CONFIG_MEDIA_CONTROLLER 18785a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.dev = &intf->dev; 18795a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); 18805a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (udev->serial) 18815a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strlcpy(dev->mdev.serial, udev->serial, 18825a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart sizeof(dev->mdev.serial)); 18835a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart strcpy(dev->mdev.bus_info, udev->devpath); 18845a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); 1885fd3e5824824d1beaf376cd523c7418c5570851d4Mauro Carvalho Chehab dev->mdev.driver_version = LINUX_VERSION_CODE; 18865a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (media_device_register(&dev->mdev) < 0) 18875a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 18885a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 18895a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart dev->vdev.mdev = &dev->mdev; 18905a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart#endif 18915a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) 18925a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart goto error; 18935a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart 18942c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize controls. */ 1895c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if (uvc_ctrl_init_device(dev) < 0) 1896c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1897c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 18988e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart /* Scan the device for video chains. */ 189935f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (uvc_scan_device(dev) < 0) 1900c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart goto error; 1901c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19025a254d751e52e0f817090c29950d16cf18490d5bLaurent Pinchart /* Register video device nodes. */ 19038e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart if (uvc_register_chains(dev) < 0) 19048e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart goto error; 19058e113595edf0741b45ba10ba88cb5d077787c155Laurent Pinchart 19062c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Save our data pointer in the interface data. */ 1907c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, dev); 1908c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19092c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart /* Initialize the interrupt URB. */ 1910c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart if ((ret = uvc_status_init(dev)) < 0) { 1911c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_printk(KERN_INFO, "Unable to initialize the status " 1912c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "endpoint (%d), status interrupt will not be " 1913c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart "supported.\n", ret); 1914c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1915c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1916c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); 19173dae8b41dc5651f8eb22cf310e8b116480ba25b7Matthew Garrett usb_enable_autosuspend(udev); 1918c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return 0; 1919c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1920c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pincharterror: 1921716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1922c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return -ENODEV; 1923c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1924c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1925c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void uvc_disconnect(struct usb_interface *intf) 1926c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1927c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 1928c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1929c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Set the USB interface data to NULL. This can be done outside the 1930c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * lock, as there's no other reader. 1931c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 1932c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_set_intfdata(intf, NULL); 1933c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1934b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1935b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOSTREAMING) 1936c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart return; 1937c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1938c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart dev->state |= UVC_DEV_DISCONNECTED; 1939a9e285856112e5e721b6a341d15437a164128b30Laurent Pinchart 1940716fdee110ceb816cca8c46c0890d08c5a1addb9Laurent Pinchart uvc_unregister_video(dev); 1941c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1942c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1943c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int uvc_suspend(struct usb_interface *intf, pm_message_t message) 1944c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1945c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 194635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1947c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1948c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", 1949c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1950c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1951c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Controls are cached on the fly so they don't need to be saved. */ 1952b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 195317706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart UVC_SC_VIDEOCONTROL) { 195417706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_lock(&dev->lock); 195517706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (dev->users) 195617706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart uvc_status_stop(dev); 195717706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_unlock(&dev->lock); 195817706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart return 0; 195917706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart } 1960c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 196135f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 196235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 196335f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return uvc_video_suspend(stream); 1964c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1965c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 196635f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB interface " 196735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 196835f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 1969c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 1970c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 19719b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int __uvc_resume(struct usb_interface *intf, int reset) 1972c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 1973c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart struct uvc_device *dev = usb_get_intfdata(intf); 197435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart struct uvc_streaming *stream; 1975c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1976c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", 1977c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart intf->cur_altsetting->desc.bInterfaceNumber); 1978c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 1979b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart if (intf->cur_altsetting->desc.bInterfaceSubClass == 1980b482d9231a73478763e6b42fd88ea453731a67ebLaurent Pinchart UVC_SC_VIDEOCONTROL) { 198117706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart int ret = 0; 19827564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil 198317706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (reset) { 198417706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart ret = uvc_ctrl_resume_device(dev); 19857564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil if (ret < 0) 19867564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil return ret; 19877564f67d5b38eb814e67edd8ba0c70fd8eb475b6Hans Verkuil } 1988c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 198917706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_lock(&dev->lock); 199017706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart if (dev->users) 199117706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart ret = uvc_status_start(dev, GFP_NOIO); 199217706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart mutex_unlock(&dev->lock); 199317706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart 199417706f5653a90ff277b5b36c2eb60ff872df5e7aLaurent Pinchart return ret; 1995c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 1996c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 199735f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart list_for_each_entry(stream, &dev->streams, list) { 199835f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart if (stream->intf == intf) 1999d59a7b1dbce8b972ec2dc9fcaaae0bfa23687423Ming Lei return uvc_video_resume(stream, reset); 2000c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart } 2001c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 200235f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB interface " 200335f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart "mismatch.\n"); 200435f02a681b72ece756cf005e17f305a72329c140Laurent Pinchart return -EINVAL; 2005c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2006c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 20079b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_resume(struct usb_interface *intf) 20089b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 20099b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 0); 20109b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 20119b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 20129b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchartstatic int uvc_reset_resume(struct usb_interface *intf) 20139b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart{ 20149b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart return __uvc_resume(intf, 1); 20159b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart} 20169b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart 2017c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* ------------------------------------------------------------------------ 2018310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart * Module parameters 2019310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart */ 2020310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2021310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_get(char *buffer, struct kernel_param *kp) 2022310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2023310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (uvc_clock_param == CLOCK_MONOTONIC) 2024310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_MONOTONIC"); 2025310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2026310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return sprintf(buffer, "CLOCK_REALTIME"); 2027310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2028310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2029310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartstatic int uvc_clock_param_set(const char *val, struct kernel_param *kp) 2030310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart{ 2031310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strncasecmp(val, "clock_", strlen("clock_")) == 0) 2032310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart val += strlen("clock_"); 2033310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2034310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart if (strcasecmp(val, "monotonic") == 0) 2035310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_MONOTONIC; 2036310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else if (strcasecmp(val, "realtime") == 0) 2037310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart uvc_clock_param = CLOCK_REALTIME; 2038310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart else 2039310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return -EINVAL; 2040310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2041310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart return 0; 2042310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart} 2043310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2044310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_call(clock, uvc_clock_param_set, uvc_clock_param_get, 2045310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart &uvc_clock_param, S_IRUGO|S_IWUSR); 2046310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(clock, "Video buffers timestamp clock"); 2047310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR); 2048310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(nodrop, "Don't drop incomplete frames"); 2049310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); 2050310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(quirks, "Forced device quirks"); 2051310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); 2052310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(trace, "Trace level bitmask"); 2053310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchartmodule_param_named(timeout, uvc_timeout_param, uint, S_IRUGO|S_IWUSR); 2054310fe52461e6244b01a04b011c2e886d6b69de16Laurent PinchartMODULE_PARM_DESC(timeout, "Streaming control requests timeout"); 2055310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart 2056310fe52461e6244b01a04b011c2e886d6b69de16Laurent Pinchart/* ------------------------------------------------------------------------ 2057c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * Driver initialization and cleanup 2058c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2059c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2060c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart/* 2061c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * The Logitech cameras listed below have their interface class set to 2062c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * VENDOR_SPEC because they don't announce themselves as UVC devices, even 2063c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart * though they are compliant. 2064c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart */ 2065c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic struct usb_device_id uvc_ids[] = { 20664eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart /* LogiLink Wireless Webcam */ 20674eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 20684eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 20694eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idVendor = 0x0416, 20704eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .idProduct = 0xa91a, 20714eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 20724eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceSubClass = 1, 20734eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .bInterfaceProtocol = 0, 20744eb2697e0a65c6a30c2c6a4ae602dfc6fe68edb2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2075bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart /* Genius eFace 2025 */ 2076bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2077bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2078bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idVendor = 0x0458, 2079bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .idProduct = 0x706e, 2080bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2081bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceSubClass = 1, 2082bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .bInterfaceProtocol = 0, 2083bce039c099e97b07534518b5f3c0ce31b1606ff6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2084c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam NX-6000 */ 2085c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2086c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2087c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2088c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x00f8, 2089c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2090c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2091c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2092c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2093c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Microsoft Lifecam VX-7000 */ 2094c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2095c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2096c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x045e, 2097c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0723, 2098c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2099c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2100c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2101c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2102c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Fusion */ 2103c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2104c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2105c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2106c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c1, 2107c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2108c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2109c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2110c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Orbit MP */ 2111c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2112c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2113c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2114c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c2, 2115c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2116c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2117c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2118c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro for 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 = 0x08c3, 2123c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2124c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2125c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2126c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam Pro 5000 */ 2127c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2128c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2129c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2130c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c5, 2131c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2132c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2133c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2134c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Dell Notebook */ 2135c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2136c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2137c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2138c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c6, 2139c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2140c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2141c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 2142c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Logitech Quickcam OEM Cisco VT Camera II */ 2143c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2144c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2145c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x046d, 2146c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x08c7, 2147c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2148c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2149c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0 }, 215086d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart /* Chicony CNF7129 (Asus EEE 100HE) */ 215186d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 215286d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 215386d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idVendor = 0x04f2, 215486d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .idProduct = 0xb071, 215586d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 215686d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceSubClass = 1, 215786d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .bInterfaceProtocol = 0, 215886d8b6abbbc973a1dd7d3c8f9e3c3e06131703b2Laurent Pinchart .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE }, 2159f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Alcor Micro AU3820 (Future Boy PC USB Webcam) */ 2160f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2161f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2162f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idVendor = 0x058f, 2163f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .idProduct = 0x3820, 2164f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2165f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceSubClass = 1, 2166f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .bInterfaceProtocol = 0, 2167f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 21683efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart /* Dell XPS m1530 */ 21693efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 21703efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 21713efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idVendor = 0x05a9, 21723efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .idProduct = 0x2640, 21733efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 21743efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceSubClass = 1, 21753efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .bInterfaceProtocol = 0, 21763efe2f1b12664c075215b1e4e409346080907af6Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2177c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury /* Dell Alienware X51 */ 2178c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2179c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury | USB_DEVICE_ID_MATCH_INT_INFO, 2180c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .idVendor = 0x05a9, 2181c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .idProduct = 0x2643, 2182c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceClass = USB_CLASS_VIDEO, 2183c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceSubClass = 1, 2184c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .bInterfaceProtocol = 0, 2185c2a273b24f2c82184cc0f04ba3a61da51c84724bJoseph Salisbury .driver_info = UVC_QUIRK_PROBE_DEF }, 2186afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa /* Dell Studio Hybrid 140g (OmniVision webcam) */ 2187afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2188afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa | USB_DEVICE_ID_MATCH_INT_INFO, 2189afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .idVendor = 0x05a9, 2190afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .idProduct = 0x264a, 2191afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceClass = USB_CLASS_VIDEO, 2192afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceSubClass = 1, 2193afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .bInterfaceProtocol = 0, 2194afcf44c786765b4eee44eea39ac0fddbbb830926Kamal Mostafa .driver_info = UVC_QUIRK_PROBE_DEF }, 2195c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Apple Built-In iSight */ 21962c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2197c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2198c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x05ac, 2199c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8501, 22002c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22012c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 22022c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 2203c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2204c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | UVC_QUIRK_BUILTIN_ISIGHT }, 2205949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov /* Foxlink ("HP Webcam" on HP Mini 5103) */ 2206949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2207949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov | USB_DEVICE_ID_MATCH_INT_INFO, 2208949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idVendor = 0x05c8, 2209949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .idProduct = 0x0403, 2210949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceClass = USB_CLASS_VIDEO, 2211949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceSubClass = 1, 2212949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .bInterfaceProtocol = 0, 2213949d9264589b759df66d40d497d14ecc49681b3aKirill Smelkov .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2214c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Genesys Logic USB 2.0 PC Camera */ 22152c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2216c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 22172c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idVendor = 0x05e3, 22182c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .idProduct = 0x0505, 22192c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22202c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceSubClass = 1, 22212c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .bInterfaceProtocol = 0, 22222c2d264bb951c1a846b86431d3e784edfb79ab39Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2223e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart /* Hercules Classic Silver */ 2224e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2225e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2226e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idVendor = 0x06f8, 2227e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .idProduct = 0x300c, 2228e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2229e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceSubClass = 1, 2230e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .bInterfaceProtocol = 0, 2231e01a234407af60c4b9854d069a7217d75fcdfa29Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2232d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Vega */ 2233d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2234d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2235d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2236d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x332d, 2237d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2238d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2239d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2240d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2241d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro - Minoru3D */ 2242d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2243d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2244d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idVendor = 0x0ac8, 2245d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3410, 2246d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2247d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceSubClass = 1, 2248d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .bInterfaceProtocol = 0, 2249d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2250d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart /* ViMicro Venus - Minoru3D */ 2251d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 225250144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 225350144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .idVendor = 0x0ac8, 2254d79cd8393ae85ebaf53a8fc93491eea96522d68eLaurent Pinchart .idProduct = 0x3420, 225550144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 225650144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceSubClass = 1, 225750144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .bInterfaceProtocol = 0, 225850144aeeb702ea105697ae5249f059ea3990b838Laurent Pinchart .driver_info = UVC_QUIRK_FIX_BANDWIDTH }, 2259d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart /* Ophir Optronics - SPCAM 620U */ 2260d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2261d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2262d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idVendor = 0x0bd3, 2263d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .idProduct = 0x0555, 2264d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2265d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceSubClass = 1, 2266d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .bInterfaceProtocol = 0, 2267d584b8386e1dacfb153cd9962ae2a01142234750Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2268c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* MT6227 */ 2269c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2270c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2271c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x0e8d, 2272c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x0004, 2273c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2274c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2275c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2276bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2277bab6f66c08043a93b9460f6e0bf2b1cd9cc03e53Laurent Pinchart | UVC_QUIRK_PROBE_DEF }, 22789275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart /* IMC Networks (Medion Akoya) */ 22799275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 22809275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 22819275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idVendor = 0x13d3, 22829275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .idProduct = 0x5103, 22839275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 22849275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceSubClass = 1, 22859275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .bInterfaceProtocol = 0, 22869275b32bced808bd57bdf3884748ed1126ba90e0Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2287d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart /* JMicron USB2.0 XGA WebCam */ 2288d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2289d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2290d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idVendor = 0x152d, 2291d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .idProduct = 0x0310, 2292d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2293d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceSubClass = 1, 2294d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .bInterfaceProtocol = 0, 2295d1787b1f8d0a2ac0a77c0e04f9fcbc494eb3fee2Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2296c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (HP Spartan) */ 2297c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2298c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2299c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2300c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x5212, 2301c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2302c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2303c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 230425e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2305562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart /* Syntek (Samsung Q310) */ 2306562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2307562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2308562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idVendor = 0x174f, 2309562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .idProduct = 0x5931, 2310562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2311562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceSubClass = 1, 2312562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .bInterfaceProtocol = 0, 2313562f0fed97722fc58230d21e401f1259caa94b4cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2314f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart /* Syntek (Packard Bell EasyNote MX52 */ 2315f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2316f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2317f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idVendor = 0x174f, 2318f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .idProduct = 0x8a12, 2319f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2320f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceSubClass = 1, 2321f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .bInterfaceProtocol = 0, 2322f129b03ba272c86c42ad476684caa0d6109cb383Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2323f61d1d8a563b1f3c5f1f55d856278aae3fd3987eLaurent Pinchart /* Syntek (Asus F9SG) */ 232425e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 232525e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 232625e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idVendor = 0x174f, 232725e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .idProduct = 0x8a31, 232825e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 232925e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceSubClass = 1, 233025e69850d1bb315f251c91183b89da44d4f9be23Laurent Pinchart .bInterfaceProtocol = 0, 2331c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2332c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Syntek (Asus U3S) */ 2333c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2334c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2335c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x174f, 2336c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x8a33, 2337c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2338c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2339c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2340c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 23410ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart /* Syntek (JAOtech Smart Terminal) */ 23420ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23430ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23440ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idVendor = 0x174f, 23450ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .idProduct = 0x8a34, 23460ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23470ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceSubClass = 1, 23480ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .bInterfaceProtocol = 0, 23490ce566da77767bc7dd6e4016a6544c9e814d2ed3Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 235070092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart /* Miricle 307K */ 235170092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 235270092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 235370092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idVendor = 0x17dc, 235470092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .idProduct = 0x0202, 235570092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 235670092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceSubClass = 1, 235770092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .bInterfaceProtocol = 0, 235870092c26dcfcdcc463e157c103ec4c9d2d49de67Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 2359849a3aba2d9830dc2a78a66078023e7e5ac26e15Filipe Rosset /* Lenovo Thinkpad SL400/SL500 */ 23602f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23612f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23622f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idVendor = 0x17ef, 23632f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .idProduct = 0x480b, 23642f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23652f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceSubClass = 1, 23662f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .bInterfaceProtocol = 0, 23672f38483bc45e11dc138cedce72135f57819f57c4Laurent Pinchart .driver_info = UVC_QUIRK_STREAM_NO_FID }, 23682d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart /* Aveo Technology USB 2.0 Camera */ 23692d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23702d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23712d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idVendor = 0x1871, 23722d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .idProduct = 0x0306, 23732d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23742d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceSubClass = 1, 23752d2bf2a3a6c84f0b316764e521d5dcee557e9c65Laurent Pinchart .bInterfaceProtocol = 0, 23765bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 23775bdf1377587bbde8ef0893cf726de116c2250208Laurent Pinchart | UVC_QUIRK_PROBE_EXTRAFIELDS }, 2378c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Ecamm Pico iMage */ 2379c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2380c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2381c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x18cd, 2382c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0xcafe, 2383c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2384c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2385c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2386c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, 23872bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart /* Manta MM-353 Plako */ 23882bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 23892bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 23902bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idVendor = 0x18ec, 23912bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .idProduct = 0x3188, 23922bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 23932bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceSubClass = 1, 23942bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .bInterfaceProtocol = 0, 23952bb00fe6336687f08e0a3733bce2343a821af843Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2396ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart /* FSC WebCam V30S */ 2397ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2398ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2399ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idVendor = 0x18ec, 2400ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .idProduct = 0x3288, 2401ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2402ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceSubClass = 1, 2403ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .bInterfaceProtocol = 0, 2404ca4a3456858775081f172e89077aa65cf5dbc52aLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 24051e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart /* Arkmicro unbranded */ 24061e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24071e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24081e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idVendor = 0x18ec, 24091e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .idProduct = 0x3290, 24101e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24111e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceSubClass = 1, 24121e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .bInterfaceProtocol = 0, 24131e4d05bc95a0fe2972c5c91ed45466587d07cd2cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_DEF }, 2414fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari /* The Imaging Source USB CCD cameras */ 2415fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2416fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari | USB_DEVICE_ID_MATCH_INT_INFO, 2417fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idVendor = 0x199e, 2418fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .idProduct = 0x8102, 2419fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceClass = USB_CLASS_VENDOR_SPEC, 2420fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceSubClass = 1, 2421fd3e9f2f9a4c46f5d67d384c78b2d364c99d3de6Arne Caspari .bInterfaceProtocol = 0 }, 2422c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Bodelin ProScopeHR */ 2423c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2424c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_DEV_HI 2425c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2426c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x19ab, 2427c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x1000, 2428c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bcdDevice_hi = 0x0126, 2429c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2430c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2431c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2432c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_STATUS_INTERVAL }, 24333bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart /* MSI StarCam 370i */ 24343bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 24353bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 24363bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idVendor = 0x1b3b, 24373bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .idProduct = 0x2951, 24383bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 24393bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceSubClass = 1, 24403bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .bInterfaceProtocol = 0, 24413bc766ad374d04349ba09bd93f51980ad29d11c3Laurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX }, 2442c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* SiGma Micro USB Web Camera */ 2443c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { .match_flags = USB_DEVICE_ID_MATCH_DEVICE 2444c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart | USB_DEVICE_ID_MATCH_INT_INFO, 2445c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idVendor = 0x1c4f, 2446c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .idProduct = 0x3000, 2447c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceClass = USB_CLASS_VIDEO, 2448c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceSubClass = 1, 2449c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .bInterfaceProtocol = 0, 2450c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver_info = UVC_QUIRK_PROBE_MINMAX 2451d732c44c1a4b54e3c59ad92069bc2fd848aca5f3Laurent Pinchart | UVC_QUIRK_IGNORE_SELECTOR_UNIT }, 2452c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart /* Generic USB Video Class */ 2453c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, 2454c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart {} 2455c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2456c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2457c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DEVICE_TABLE(usb, uvc_ids); 2458c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2459c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstruct uvc_driver uvc_driver = { 2460c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .driver = { 2461c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .name = "uvcvideo", 2462c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .probe = uvc_probe, 2463c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .disconnect = uvc_disconnect, 2464c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .suspend = uvc_suspend, 2465c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .resume = uvc_resume, 24669b0ae867a6fd3035e97e6c33bc07a5bfd7c0f96cLaurent Pinchart .reset_resume = uvc_reset_resume, 2467c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .id_table = uvc_ids, 2468c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart .supports_autosuspend = 1, 2469c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart }, 2470c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart}; 2471c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2472c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic int __init uvc_init(void) 2473c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2474edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher int ret; 2475c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2476edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_init(); 2477edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2478edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher ret = usb_register(&uvc_driver.driver); 2479edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher if (ret < 0) { 2480edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2481edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return ret; 2482edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher } 2483edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher 2484edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); 2485edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher return 0; 2486c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2487c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2488c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartstatic void __exit uvc_cleanup(void) 2489c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart{ 2490c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart usb_deregister(&uvc_driver.driver); 2491edbaa39842793fc4ac6603b277f2ad76f2057a45Alexey Fisher uvc_debugfs_cleanup(); 2492c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart} 2493c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2494c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_init(uvc_init); 2495c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchartmodule_exit(uvc_cleanup); 2496c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent Pinchart 2497c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_AUTHOR(DRIVER_AUTHOR); 2498c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_DESCRIPTION(DRIVER_DESC); 2499c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_LICENSE("GPL"); 2500c0efd232929c2cd87238de2cccdaf4e845be5b0cLaurent PinchartMODULE_VERSION(DRIVER_VERSION); 2501f87086e302300fdff1bd32049deb7a7f3e3de7daHans Verkuil 2502