1 /*
2 * Copyright 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "DrmAtomicRequest.h"
18
19 namespace aidl::android::hardware::graphics::composer3::impl {
20
create()21 std::unique_ptr<DrmAtomicRequest> DrmAtomicRequest::create() {
22 drmModeAtomicReqPtr request = drmModeAtomicAlloc();
23 if (!request) {
24 return nullptr;
25 }
26
27 return std::unique_ptr<DrmAtomicRequest>(new DrmAtomicRequest(request));
28 }
29
~DrmAtomicRequest()30 DrmAtomicRequest::~DrmAtomicRequest() {
31 if (mRequest) {
32 drmModeAtomicFree(mRequest);
33 }
34 }
35
Set(uint32_t objectId,const DrmProperty & prop,uint64_t value)36 bool DrmAtomicRequest::Set(uint32_t objectId, const DrmProperty& prop, uint64_t value) {
37 int ret = drmModeAtomicAddProperty(mRequest, objectId, prop.getId(), value);
38 if (ret < 0) {
39 ALOGE("%s: failed to set atomic request property %s to %" PRIu64 ": %s", __FUNCTION__,
40 prop.getName().c_str(), value, strerror(errno));
41 return false;
42 }
43 return true;
44 }
45
Commit(::android::base::borrowed_fd drmFd)46 bool DrmAtomicRequest::Commit(::android::base::borrowed_fd drmFd) {
47 constexpr const uint32_t kCommitFlags = DRM_MODE_ATOMIC_ALLOW_MODESET;
48
49 int ret = drmModeAtomicCommit(drmFd.get(), mRequest, kCommitFlags, 0);
50 if (ret) {
51 ALOGE("%s:%d: atomic commit failed: %s\n", __FUNCTION__, __LINE__, strerror(errno));
52 return false;
53 }
54
55 return true;
56 }
57
58 } // namespace aidl::android::hardware::graphics::composer3::impl
59