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/*
* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright 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.
*/
#ifndef __HWC_SESSION_H__
#define __HWC_SESSION_H__
#include <core/core_interface.h>
#include <utils/locker.h>
#include "hwc_callbacks.h"
#include "hwc_layers.h"
#include "hwc_display.h"
#include "hwc_display_primary.h"
#include "hwc_display_external.h"
#include "hwc_display_virtual.h"
#include "hwc_color_manager.h"
#include "hwc_socket_handler.h"
namespace sdm {
class HWCSession : hwc2_device_t, public qClient::BnQClient {
public:
struct HWCModuleMethods : public hw_module_methods_t {
HWCModuleMethods() { hw_module_methods_t::open = HWCSession::Open; }
};
explicit HWCSession(const hw_module_t *module);
int Init();
int Deinit();
HWC2::Error CreateVirtualDisplayObject(uint32_t width, uint32_t height, int32_t *format);
template <typename... Args>
static int32_t CallDisplayFunction(hwc2_device_t *device, hwc2_display_t display,
HWC2::Error (HWCDisplay::*member)(Args...), Args... args) {
if (!device) {
return HWC2_ERROR_BAD_DISPLAY;
}
HWCSession *hwc_session = static_cast<HWCSession *>(device);
auto status = HWC2::Error::BadDisplay;
if (hwc_session->hwc_display_[display]) {
auto hwc_display = hwc_session->hwc_display_[display];
status = (hwc_display->*member)(std::forward<Args>(args)...);
}
return INT32(status);
}
template <typename... Args>
static int32_t CallLayerFunction(hwc2_device_t *device, hwc2_display_t display,
hwc2_layer_t layer, HWC2::Error (HWCLayer::*member)(Args...),
Args... args) {
if (!device) {
return HWC2_ERROR_BAD_DISPLAY;
}
HWCSession *hwc_session = static_cast<HWCSession *>(device);
auto status = HWC2::Error::BadDisplay;
if (hwc_session->hwc_display_[display]) {
status = HWC2::Error::BadLayer;
auto hwc_layer = hwc_session->hwc_display_[display]->GetHWCLayer(layer);
if (hwc_layer != nullptr) {
status = (hwc_layer->*member)(std::forward<Args>(args)...);
if (hwc_session->hwc_display_[display]->geometry_changes_) {
hwc_session->hwc_display_[display]->validated_ = false;
}
}
}
return INT32(status);
}
// HWC2 Functions that require a concrete implementation in hwc session
// and hence need to be member functions
static int32_t AcceptDisplayChanges(hwc2_device_t *device, hwc2_display_t display);
static int32_t CreateLayer(hwc2_device_t *device, hwc2_display_t display,
hwc2_layer_t *out_layer_id);
static int32_t CreateVirtualDisplay(hwc2_device_t *device, uint32_t width, uint32_t height,
int32_t *format, hwc2_display_t *out_display_id);
static int32_t DestroyLayer(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t layer);
static int32_t DestroyVirtualDisplay(hwc2_device_t *device, hwc2_display_t display);
static void Dump(hwc2_device_t *device, uint32_t *out_size, char *out_buffer);
static int32_t PresentDisplay(hwc2_device_t *device, hwc2_display_t display,
int32_t *out_retire_fence);
static int32_t RegisterCallback(hwc2_device_t *device, int32_t descriptor,
hwc2_callback_data_t callback_data,
hwc2_function_pointer_t pointer);
static int32_t SetOutputBuffer(hwc2_device_t *device, hwc2_display_t display,
buffer_handle_t buffer, int32_t releaseFence);
static int32_t SetLayerZOrder(hwc2_device_t *device, hwc2_display_t display, hwc2_layer_t layer,
uint32_t z);
static int32_t SetPowerMode(hwc2_device_t *device, hwc2_display_t display, int32_t int_mode);
static int32_t ValidateDisplay(hwc2_device_t *device, hwc2_display_t display,
uint32_t *out_num_types, uint32_t *out_num_requests);
static int32_t SetColorMode(hwc2_device_t *device, hwc2_display_t display,
int32_t /*android_color_mode_t*/ int_mode);
static int32_t SetColorTransform(hwc2_device_t *device, hwc2_display_t display,
const float *matrix, int32_t /*android_color_transform_t*/ hint);
private:
static const int kExternalConnectionTimeoutMs = 500;
static const int kPartialUpdateControlTimeoutMs = 100;
// hwc methods
static int Open(const hw_module_t *module, const char *name, hw_device_t **device);
static int Close(hw_device_t *device);
static void GetCapabilities(struct hwc2_device *device, uint32_t *outCount,
int32_t *outCapabilities);
static hwc2_function_pointer_t GetFunction(struct hwc2_device *device, int32_t descriptor);
// Uevent thread
static void *HWCUeventThread(void *context);
void *HWCUeventThreadHandler();
int GetEventValue(const char *uevent_data, int length, const char *event_info);
int HotPlugHandler(bool connected);
void ResetPanel();
int32_t ConnectDisplay(int disp);
int DisconnectDisplay(int disp);
int GetVsyncPeriod(int disp);
// QClient methods
virtual android::status_t notifyCallback(uint32_t command, const android::Parcel *input_parcel,
android::Parcel *output_parcel);
void DynamicDebug(const android::Parcel *input_parcel);
void SetFrameDumpConfig(const android::Parcel *input_parcel);
android::status_t SetMaxMixerStages(const android::Parcel *input_parcel);
android::status_t SetDisplayMode(const android::Parcel *input_parcel);
android::status_t SetSecondaryDisplayStatus(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t ToggleScreenUpdates(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t ConfigureRefreshRate(const android::Parcel *input_parcel);
android::status_t QdcmCMDHandler(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t ControlPartialUpdate(const android::Parcel *input_parcel, android::Parcel *out);
android::status_t OnMinHdcpEncryptionLevelChange(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t SetPanelBrightness(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t GetPanelBrightness(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
// These functions return the actual display config info as opposed to FB
android::status_t HandleSetActiveDisplayConfig(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t HandleGetActiveDisplayConfig(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t HandleGetDisplayConfigCount(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t HandleGetDisplayAttributesForConfig(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t GetVisibleDisplayRect(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t SetDynamicBWForCamera(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t GetBWTransactionStatus(const android::Parcel *input_parcel,
android::Parcel *output_parcel);
android::status_t SetMixerResolution(const android::Parcel *input_parcel);
android::status_t SetColorModeOverride(const android::Parcel *input_parcel);
android::status_t SetColorModeById(const android::Parcel *input_parcel);
static Locker locker_;
CoreInterface *core_intf_ = NULL;
HWCDisplay *hwc_display_[HWC_NUM_DISPLAY_TYPES] = {NULL};
HWCCallbacks callbacks_;
pthread_t uevent_thread_;
bool uevent_thread_exit_ = false;
const char *uevent_thread_name_ = "HWC_UeventThread";
HWCBufferAllocator *buffer_allocator_;
HWCBufferSyncHandler buffer_sync_handler_;
HWCColorManager *color_mgr_ = NULL;
bool reset_panel_ = false;
bool secure_display_active_ = false;
bool external_pending_connect_ = false;
bool new_bw_mode_ = false;
bool need_invalidate_ = false;
int bw_mode_release_fd_ = -1;
qService::QService *qservice_ = NULL;
HWCSocketHandler socket_handler_;
};
} // namespace sdm
#endif // __HWC_SESSION_H__