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@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
UVCDevice(const char * name)27 UVCDevice::UVCDevice (const char *name)
28 : V4l2Device (name)
29 {
30 }
31
~UVCDevice()32 UVCDevice::~UVCDevice ()
33 {
34 }
35
36 XCamReturn
allocate_buffer(SmartPtr<V4l2Buffer> & buf,const struct v4l2_format & format,const uint32_t index)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