| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_GRAPHICS_DISPLAY_DRIVERS_GOLDFISH_DISPLAY_DISPLAY_H_ |
| #define SRC_GRAPHICS_DISPLAY_DRIVERS_GOLDFISH_DISPLAY_DISPLAY_H_ |
| |
| #include <fuchsia/hardware/display/controller/cpp/banjo.h> |
| #include <fuchsia/hardware/goldfish/control/cpp/banjo.h> |
| #include <fuchsia/hardware/goldfish/pipe/cpp/banjo.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async/cpp/wait.h> |
| #include <lib/ddk/device.h> |
| #include <lib/ddk/io-buffer.h> |
| #include <lib/zircon-internal/thread_annotations.h> |
| #include <lib/zx/pmt.h> |
| #include <threads.h> |
| #include <zircon/types.h> |
| |
| #include <map> |
| #include <memory> |
| |
| #include <ddktl/device.h> |
| #include <fbl/auto_lock.h> |
| #include <fbl/condition_variable.h> |
| #include <fbl/mutex.h> |
| |
| namespace goldfish { |
| |
| class Display; |
| using DisplayType = ddk::Device<Display, ddk::Unbindable, ddk::ChildPreReleaseable>; |
| |
| class Display : public DisplayType, |
| public ddk::DisplayControllerImplProtocol<Display, ddk::base_protocol> { |
| public: |
| static zx_status_t Create(void* ctx, zx_device_t* parent); |
| |
| explicit Display(zx_device_t* parent); |
| |
| ~Display(); |
| |
| zx_status_t Bind(); |
| |
| // Device protocol implementation. |
| void DdkUnbind(ddk::UnbindTxn txn); |
| void DdkRelease(); |
| void DdkChildPreRelease(void* child_ctx) { |
| fbl::AutoLock lock(&flush_lock_); |
| dc_intf_ = ddk::DisplayControllerInterfaceProtocolClient(); |
| } |
| |
| // Display controller protocol implementation. |
| void DisplayControllerImplSetDisplayControllerInterface( |
| const display_controller_interface_protocol_t* interface); |
| zx_status_t DisplayControllerImplImportVmoImage(image_t* image, zx::vmo vmo, size_t offset) { |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| zx_status_t DisplayControllerImplImportImage(image_t* image, zx_unowned_handle_t handle, |
| uint32_t index); |
| void DisplayControllerImplReleaseImage(image_t* image); |
| uint32_t DisplayControllerImplCheckConfiguration(const display_config_t** display_configs, |
| size_t display_count, |
| uint32_t** layer_cfg_results, |
| size_t* layer_cfg_result_count); |
| void DisplayControllerImplApplyConfiguration(const display_config_t** display_config, |
| size_t display_count); |
| void DisplayControllerImplSetEld(uint64_t display_id, const uint8_t* raw_eld_list, |
| size_t raw_eld_count) {} // No ELD required for non-HDA systems. |
| zx_status_t DisplayControllerImplGetSysmemConnection(zx::channel connection); |
| zx_status_t DisplayControllerImplSetBufferCollectionConstraints(const image_t* config, |
| uint32_t collection); |
| zx_status_t DisplayControllerImplGetSingleBufferFramebuffer(zx::vmo* out_vmo, |
| uint32_t* out_stride); |
| |
| // TESTING ONLY |
| void CreateDevices(int num_devices) { |
| constexpr uint32_t dummy_width = 1024; |
| constexpr uint32_t dummy_height = 768; |
| constexpr uint32_t dummy_fr = 60; |
| ZX_DEBUG_ASSERT(devices_.empty()); |
| for (int i = 0; i < num_devices; i++) { |
| Device device; |
| device.width = dummy_width; |
| device.height = dummy_height; |
| device.refresh_rate_hz = dummy_fr; |
| devices_[i + 1] = device; |
| } |
| } |
| void RemoveDevices() { |
| ZX_DEBUG_ASSERT(!devices_.empty()); |
| devices_.clear(); |
| ZX_DEBUG_ASSERT(devices_.empty()); |
| } |
| |
| private: |
| struct ColorBuffer { |
| ~ColorBuffer() { |
| if (pmt) |
| pmt.unpin(); |
| } |
| |
| uint32_t id = 0; |
| zx_paddr_t paddr = 0; |
| size_t size = 0; |
| uint32_t width = 0; |
| uint32_t height = 0; |
| uint32_t format = 0; |
| zx::vmo vmo; |
| zx::pmt pmt; |
| |
| zx::eventpair sync_event; |
| std::unique_ptr<async::WaitOnce> async_wait; |
| }; |
| struct Device { |
| uint32_t width = 0; |
| uint32_t height = 0; |
| uint32_t x = 0; |
| uint32_t y = 0; |
| uint32_t refresh_rate_hz = 60; |
| uint32_t host_display_id = 0; |
| float scale = 1.0; |
| zx::time expected_next_flush = zx::time::infinite_past(); |
| }; |
| |
| zx_status_t WriteLocked(uint32_t cmd_size) TA_REQ(lock_); |
| zx_status_t ReadResultLocked(uint32_t* result, uint32_t count) TA_REQ(lock_); |
| zx_status_t ExecuteCommandLocked(uint32_t cmd_size, uint32_t* result) TA_REQ(lock_); |
| int32_t GetFbParamLocked(uint32_t param, int32_t default_value) TA_REQ(lock_); |
| zx_status_t CreateColorBufferLocked(uint32_t width, uint32_t height, uint32_t format, |
| uint32_t* id) TA_REQ(lock_); |
| zx_status_t OpenColorBufferLocked(uint32_t id) TA_REQ(lock_); |
| zx_status_t CloseColorBufferLocked(uint32_t id) TA_REQ(lock_); |
| zx_status_t SetColorBufferVulkanModeLocked(uint32_t id, uint32_t mode, uint32_t* result) |
| TA_REQ(lock_); |
| zx_status_t UpdateColorBufferLocked(uint32_t id, zx_paddr_t paddr, uint32_t width, |
| uint32_t height, uint32_t format, size_t size, |
| uint32_t* result) TA_REQ(lock_); |
| zx_status_t FbPostLocked(uint32_t id) TA_REQ(lock_); |
| zx_status_t CreateDisplayLocked(uint32_t* result) TA_REQ(lock_); |
| zx_status_t DestroyDisplayLocked(uint32_t display_id, uint32_t* result) TA_REQ(lock_); |
| zx_status_t SetDisplayColorBufferLocked(uint32_t display_id, uint32_t id, uint32_t* result) |
| TA_REQ(lock_); |
| zx_status_t SetDisplayPoseLocked(uint32_t display_id, int32_t x, int32_t y, uint32_t w, |
| uint32_t h, uint32_t* result) TA_REQ(lock_); |
| zx_status_t ImportVmoImage(image_t* image, zx::vmo vmo, size_t offset); |
| |
| zx_status_t PresentColorBuffer(uint32_t display_id, ColorBuffer* color_buffer); |
| zx_status_t SetupDisplayLocked(uint64_t id) TA_REQ(lock_); |
| void TeardownDisplay(uint64_t id); |
| void FlushDisplay(async_dispatcher_t* dispatcher, uint64_t id); |
| |
| fbl::Mutex lock_; |
| ddk::GoldfishControlProtocolClient control_ TA_GUARDED(lock_); |
| ddk::GoldfishPipeProtocolClient pipe_ TA_GUARDED(lock_); |
| int32_t id_ = 0; |
| zx::bti bti_; |
| ddk::IoBuffer cmd_buffer_ TA_GUARDED(lock_); |
| ddk::IoBuffer io_buffer_ TA_GUARDED(lock_); |
| |
| std::map<uint64_t, Device> devices_; |
| fbl::Mutex flush_lock_; |
| ddk::DisplayControllerInterfaceProtocolClient dc_intf_ TA_GUARDED(flush_lock_); |
| std::map<uint64_t, ColorBuffer*> current_cb_; |
| std::map<uint64_t, ColorBuffer*> pending_cb_; |
| |
| zx::event pipe_event_; |
| |
| async::Loop loop_; |
| |
| DISALLOW_COPY_ASSIGN_AND_MOVE(Display); |
| }; |
| |
| } // namespace goldfish |
| |
| #endif // SRC_GRAPHICS_DISPLAY_DRIVERS_GOLDFISH_DISPLAY_DISPLAY_H_ |