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/*
* 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-connector"
#include "drmconnector.h"
#include "drmdevice.h"
#include <errno.h>
#include <stdint.h>
#include <array>
#include <sstream>
#include <log/log.h>
#include <xf86drmMode.h>
namespace android {
constexpr size_t TYPES_COUNT = 17;
DrmConnector::DrmConnector(DrmDevice *drm, drmModeConnectorPtr c,
DrmEncoder *current_encoder,
std::vector<DrmEncoder *> &possible_encoders)
: drm_(drm),
id_(c->connector_id),
encoder_(current_encoder),
display_(-1),
type_(c->connector_type),
type_id_(c->connector_type_id),
state_(c->connection),
mm_width_(c->mmWidth),
mm_height_(c->mmHeight),
possible_encoders_(possible_encoders) {
}
int DrmConnector::Init() {
int ret = drm_->GetConnectorProperty(*this, "DPMS", &dpms_property_);
if (ret) {
ALOGE("Could not get DPMS property\n");
return ret;
}
ret = drm_->GetConnectorProperty(*this, "CRTC_ID", &crtc_id_property_);
if (ret) {
ALOGE("Could not get CRTC_ID property\n");
return ret;
}
if (writeback()) {
ret = drm_->GetConnectorProperty(*this, "WRITEBACK_PIXEL_FORMATS",
&writeback_pixel_formats_);
if (ret) {
ALOGE("Could not get WRITEBACK_PIXEL_FORMATS connector_id = %d\n", id_);
return ret;
}
ret = drm_->GetConnectorProperty(*this, "WRITEBACK_FB_ID",
&writeback_fb_id_);
if (ret) {
ALOGE("Could not get WRITEBACK_FB_ID connector_id = %d\n", id_);
return ret;
}
ret = drm_->GetConnectorProperty(*this, "WRITEBACK_OUT_FENCE_PTR",
&writeback_out_fence_);
if (ret) {
ALOGE("Could not get WRITEBACK_OUT_FENCE_PTR connector_id = %d\n", id_);
return ret;
}
}
return 0;
}
uint32_t DrmConnector::id() const {
return id_;
}
int DrmConnector::display() const {
return display_;
}
void DrmConnector::set_display(int display) {
display_ = display;
}
bool DrmConnector::internal() const {
return type_ == DRM_MODE_CONNECTOR_LVDS || type_ == DRM_MODE_CONNECTOR_eDP ||
type_ == DRM_MODE_CONNECTOR_DSI ||
type_ == DRM_MODE_CONNECTOR_VIRTUAL || type_ == DRM_MODE_CONNECTOR_DPI;
}
bool DrmConnector::external() const {
return type_ == DRM_MODE_CONNECTOR_HDMIA ||
type_ == DRM_MODE_CONNECTOR_DisplayPort ||
type_ == DRM_MODE_CONNECTOR_DVID || type_ == DRM_MODE_CONNECTOR_DVII ||
type_ == DRM_MODE_CONNECTOR_VGA;
}
bool DrmConnector::writeback() const {
#ifdef DRM_MODE_CONNECTOR_WRITEBACK
return type_ == DRM_MODE_CONNECTOR_WRITEBACK;
#else
return false;
#endif
}
bool DrmConnector::valid_type() const {
return internal() || external() || writeback();
}
std::string DrmConnector::name() const {
constexpr std::array<const char *, TYPES_COUNT> names =
{"None", "VGA", "DVI-I", "DVI-D", "DVI-A", "Composite",
"SVIDEO", "LVDS", "Component", "DIN", "DP", "HDMI-A",
"HDMI-B", "TV", "eDP", "Virtual", "DSI"};
if (type_ < TYPES_COUNT) {
std::ostringstream name_buf;
name_buf << names[type_] << "-" << type_id_;
return name_buf.str();
} else {
ALOGE("Unknown type in connector %d, could not make his name", id_);
return "None";
}
}
int DrmConnector::UpdateModes() {
int fd = drm_->fd();
drmModeConnectorPtr c = drmModeGetConnector(fd, id_);
if (!c) {
ALOGE("Failed to get connector %d", id_);
return -ENODEV;
}
state_ = c->connection;
bool preferred_mode_found = false;
std::vector<DrmMode> new_modes;
for (int i = 0; i < c->count_modes; ++i) {
bool exists = false;
for (const DrmMode &mode : modes_) {
if (mode == c->modes[i]) {
new_modes.push_back(mode);
exists = true;
break;
}
}
if (!exists) {
DrmMode m(&c->modes[i]);
m.set_id(drm_->next_mode_id());
new_modes.push_back(m);
}
// Use only the first DRM_MODE_TYPE_PREFERRED mode found
if (!preferred_mode_found &&
(new_modes.back().type() & DRM_MODE_TYPE_PREFERRED)) {
preferred_mode_id_ = new_modes.back().id();
preferred_mode_found = true;
}
}
modes_.swap(new_modes);
if (!preferred_mode_found && modes_.size() != 0) {
preferred_mode_id_ = modes_[0].id();
}
return 0;
}
const DrmMode &DrmConnector::active_mode() const {
return active_mode_;
}
void DrmConnector::set_active_mode(const DrmMode &mode) {
active_mode_ = mode;
}
const DrmProperty &DrmConnector::dpms_property() const {
return dpms_property_;
}
const DrmProperty &DrmConnector::crtc_id_property() const {
return crtc_id_property_;
}
const DrmProperty &DrmConnector::writeback_pixel_formats() const {
return writeback_pixel_formats_;
}
const DrmProperty &DrmConnector::writeback_fb_id() const {
return writeback_fb_id_;
}
const DrmProperty &DrmConnector::writeback_out_fence() const {
return writeback_out_fence_;
}
DrmEncoder *DrmConnector::encoder() const {
return encoder_;
}
void DrmConnector::set_encoder(DrmEncoder *encoder) {
encoder_ = encoder;
}
drmModeConnection DrmConnector::state() const {
return state_;
}
uint32_t DrmConnector::mm_width() const {
return mm_width_;
}
uint32_t DrmConnector::mm_height() const {
return mm_height_;
}
} // namespace android
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