drmcrtc.cpp

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define LOG_TAG "hwc-drm-crtc"

#include "drmcrtc.h"
#include "drmresources.h"

#include <stdint.h>
#include <xf86drmMode.h>

#include <log/log.h>

namespace android {

DrmCrtc::DrmCrtc(DrmResources *drm, drmModeCrtcPtr c, unsigned pipe)
    : drm_(drm),
      id_(c->crtc_id),
      pipe_(pipe),
      display_(-1),
      mode_(&c->mode) {
}

int DrmCrtc::Init() {
  int ret = drm_->GetCrtcProperty(*this, "ACTIVE", &active_property_);
  if (ret) {
    ALOGE("Failed to get ACTIVE property");
    return ret;
  }

  ret = drm_->GetCrtcProperty(*this, "MODE_ID", &mode_property_);
  if (ret) {
    ALOGE("Failed to get MODE_ID property");
    return ret;
  }

  ret = drm_->GetCrtcProperty(*this, "OUT_FENCE_PTR", &out_fence_ptr_property_);
  if (ret) {
    ALOGE("Failed to get OUT_FENCE_PTR property");
    return ret;
  }
  return 0;
}

uint32_t DrmCrtc::id() const {
  return id_;
}

unsigned DrmCrtc::pipe() const {
  return pipe_;
}

int DrmCrtc::display() const {
  return display_;
}

void DrmCrtc::set_display(int display) {
  display_ = display;
}

bool DrmCrtc::can_bind(int display) const {
  return display_ == -1 || display_ == display;
}

const DrmProperty &DrmCrtc::active_property() const {
  return active_property_;
}

const DrmProperty &DrmCrtc::mode_property() const {
  return mode_property_;
}

const DrmProperty &DrmCrtc::out_fence_ptr_property() const {
  return out_fence_ptr_property_;
}
}