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      1 /*
      2  * Copyright (C) 2015 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 #define LOG_TAG "hwc-drm-crtc"
     18 
     19 #include "drmcrtc.h"
     20 #include "drmresources.h"
     21 
     22 #include <stdint.h>
     23 #include <xf86drmMode.h>
     24 
     25 #include <cutils/log.h>
     26 
     27 namespace android {
     28 
     29 DrmCrtc::DrmCrtc(DrmResources *drm, drmModeCrtcPtr c, unsigned pipe)
     30     : drm_(drm),
     31       id_(c->crtc_id),
     32       pipe_(pipe),
     33       display_(-1),
     34       x_(c->x),
     35       y_(c->y),
     36       width_(c->width),
     37       height_(c->height),
     38       mode_(&c->mode),
     39       mode_valid_(c->mode_valid) {
     40 }
     41 
     42 int DrmCrtc::Init() {
     43   int ret = drm_->GetCrtcProperty(*this, "ACTIVE", &active_property_);
     44   if (ret) {
     45     ALOGE("Failed to get ACTIVE property");
     46     return ret;
     47   }
     48 
     49   ret = drm_->GetCrtcProperty(*this, "MODE_ID", &mode_property_);
     50   if (ret) {
     51     ALOGE("Failed to get MODE_ID property");
     52     return ret;
     53   }
     54   return 0;
     55 }
     56 
     57 uint32_t DrmCrtc::id() const {
     58   return id_;
     59 }
     60 
     61 unsigned DrmCrtc::pipe() const {
     62   return pipe_;
     63 }
     64 
     65 int DrmCrtc::display() const {
     66   return display_;
     67 }
     68 
     69 void DrmCrtc::set_display(int display) {
     70   display_ = display;
     71 }
     72 
     73 bool DrmCrtc::can_bind(int display) const {
     74   return display_ == -1 || display_ == display;
     75 }
     76 
     77 const DrmProperty &DrmCrtc::active_property() const {
     78   return active_property_;
     79 }
     80 
     81 const DrmProperty &DrmCrtc::mode_property() const {
     82   return mode_property_;
     83 }
     84 }
     85