1 /* 2 * uvc_device.cpp - uvc device 3 * 4 * Copyright (c) 2014-2015 Intel Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * Author: Sameer Kibey <sameer.kibey (at) intel.com> 19 */ 20 21 #include "uvc_device.h" 22 #include "v4l2_buffer_proxy.h" 23 #include <linux/v4l2-subdev.h> 24 25 namespace XCam { 26 27 UVCDevice::UVCDevice (const char *name) 28 : V4l2Device (name) 29 { 30 } 31 32 UVCDevice::~UVCDevice () 33 { 34 } 35 36 XCamReturn 37 UVCDevice::allocate_buffer ( 38 SmartPtr<V4l2Buffer> &buf, 39 const struct v4l2_format &format, 40 const uint32_t index) 41 { 42 #if HAVE_LIBDRM 43 if (!_drm_disp.ptr()) { 44 _drm_disp = DrmDisplay::instance (); 45 } 46 47 if (get_mem_type () == V4L2_MEMORY_DMABUF && _drm_disp.ptr () != NULL) { 48 buf = _drm_disp->create_drm_buf (format, index, get_capture_buf_type ()); 49 if (!buf.ptr()) { 50 XCAM_LOG_WARNING ("uvc device(%s) allocate buffer failed", XCAM_STR (get_device_name())); 51 return XCAM_RETURN_ERROR_MEM; 52 } 53 return XCAM_RETURN_NO_ERROR; 54 } 55 #endif 56 57 return V4l2Device::allocate_buffer (buf, format, index); 58 } 59 60 }; 61
