/* * 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__ #ifdef DISPLAY_CONFIG_1_1 #include #else #include #endif #include #include #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 { #ifdef DISPLAY_CONFIG_1_1 using vendor::display::config::V1_1::IDisplayConfig; #else using ::vendor::display::config::V1_0::IDisplayConfig; #endif using ::android::hardware::Return; // Create a singleton uevent listener thread valid for life of hardware composer process. // This thread blocks on uevents poll inside uevent library implementation. This poll exits // only when there is a valid uevent, it can not be interrupted otherwise. Tieing life cycle // of this thread with HWC session cause HWC deinitialization to wait infinitely for the // thread to exit. class HWCUEventListener { public: virtual ~HWCUEventListener() {} virtual void UEventHandler(const char *uevent_data, int length) = 0; }; class HWCUEvent { public: HWCUEvent(); static void UEventThread(HWCUEvent *hwc_event); void Register(HWCUEventListener *uevent_listener); inline bool InitDone() { return init_done_; } private: std::mutex mutex_; std::condition_variable caller_cv_; HWCUEventListener *uevent_listener_ = nullptr; bool init_done_ = false; }; class HWCSession : hwc2_device_t, HWCUEventListener, IDisplayConfig, 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 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_PARAMETER; } if (display >= HWC_NUM_DISPLAY_TYPES) { return HWC2_ERROR_BAD_DISPLAY; } SCOPE_LOCK(locker_[display]); HWCSession *hwc_session = static_cast(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)...); } return INT32(status); } template 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; } SCOPE_LOCK(locker_[display]); HWCSession *hwc_session = static_cast(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)...); if (hwc_session->hwc_display_[display]->GetGeometryChanges()) { hwc_session->hwc_display_[display]->ResetValidation(); } } } 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 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; static bool disable_skip_validate_; // 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 handler virtual void UEventHandler(const char *uevent_data, int length); 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); int32_t GetConfigCount(int disp_id, uint32_t *count); int32_t GetActiveConfigIndex(int disp_id, uint32_t *config); int32_t SetActiveConfigIndex(int disp_id, uint32_t config); int32_t ControlPartialUpdate(int dpy, bool enable); int32_t DisplayBWTransactionPending(bool *status); int32_t SetSecondaryDisplayStatus(int disp_id, HWCDisplay::DisplayStatus status); int32_t GetPanelBrightness(int *level); int32_t MinHdcpEncryptionLevelChanged(int disp_id, uint32_t min_enc_level); int32_t CreateExternalDisplay(int disp, uint32_t primary_width = 0, uint32_t primary_height = 0, bool use_primary_res = false); // service methods void StartServices(); // Methods from ::android::hardware::display::config::V1_0::IDisplayConfig follow. Return isDisplayConnected(IDisplayConfig::DisplayType dpy, isDisplayConnected_cb _hidl_cb) override; Return setSecondayDisplayStatus(IDisplayConfig::DisplayType dpy, IDisplayConfig::DisplayExternalStatus status) override; Return configureDynRefeshRate(IDisplayConfig::DisplayDynRefreshRateOp op, uint32_t refreshRate) override; Return getConfigCount(IDisplayConfig::DisplayType dpy, getConfigCount_cb _hidl_cb) override; Return getActiveConfig(IDisplayConfig::DisplayType dpy, getActiveConfig_cb _hidl_cb) override; Return setActiveConfig(IDisplayConfig::DisplayType dpy, uint32_t config) override; Return getDisplayAttributes(uint32_t configIndex, IDisplayConfig::DisplayType dpy, getDisplayAttributes_cb _hidl_cb) override; Return setPanelBrightness(uint32_t level) override; Return getPanelBrightness(getPanelBrightness_cb _hidl_cb) override; Return minHdcpEncryptionLevelChanged(IDisplayConfig::DisplayType dpy, uint32_t min_enc_level) override; Return refreshScreen() override; Return controlPartialUpdate(IDisplayConfig::DisplayType dpy, bool enable) override; Return toggleScreenUpdate(bool on) override; Return setIdleTimeout(uint32_t value) override; Return getHDRCapabilities(IDisplayConfig::DisplayType dpy, getHDRCapabilities_cb _hidl_cb) override; Return setCameraLaunchStatus(uint32_t on) override; Return displayBWTransactionPending(displayBWTransactionPending_cb _hidl_cb) override; // Methods from ::android::hardware::display::config::V1_1::IDisplayConfig follow. #ifdef DISPLAY_CONFIG_1_1 Return setDisplayAnimating(uint64_t display_id, bool animating) override; #endif // 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 ConfigureRefreshRate(const android::Parcel *input_parcel); android::status_t QdcmCMDHandler(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 SetMixerResolution(const android::Parcel *input_parcel); android::status_t SetColorModeOverride(const android::Parcel *input_parcel); void Refresh(hwc2_display_t display); void HotPlug(hwc2_display_t display, HWC2::Connection state); static Locker locker_[HWC_NUM_DISPLAY_TYPES]; CoreInterface *core_intf_ = nullptr; HWCDisplay *hwc_display_[HWC_NUM_DISPLAY_TYPES] = {nullptr}; HWCCallbacks callbacks_; HWCBufferAllocator buffer_allocator_; HWCBufferSyncHandler buffer_sync_handler_; HWCColorManager *color_mgr_ = nullptr; 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_ = nullptr; HWCSocketHandler socket_handler_; bool hdmi_is_primary_ = false; Locker callbacks_lock_; }; } // namespace sdm #endif // __HWC_SESSION_H__