| // Copyright 2018 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 ZIRCON_SYSTEM_DEV_DISPLAY_FAKE_FAKE_DISPLAY_H_ |
| #define ZIRCON_SYSTEM_DEV_DISPLAY_FAKE_FAKE_DISPLAY_H_ |
| |
| #include <lib/zircon-internal/thread_annotations.h> |
| #include <unistd.h> |
| #include <zircon/compiler.h> |
| #include <zircon/pixelformat.h> |
| |
| #include <atomic> |
| |
| #include <ddk/debug.h> |
| #include <ddk/driver.h> |
| #include <ddk/protocol/platform/device.h> |
| #include <ddk/protocol/sysmem.h> |
| #include <ddktl/device.h> |
| #include <ddktl/protocol/display/controller.h> |
| #include <fbl/auto_lock.h> |
| #include <fbl/mutex.h> |
| #include <fbl/unique_ptr.h> |
| |
| namespace fake_display { |
| |
| class FakeDisplay; |
| |
| using DeviceType = ddk::Device<FakeDisplay, ddk::Unbindable>; |
| |
| class FakeDisplay : public DeviceType, |
| public ddk::DisplayControllerImplProtocol<FakeDisplay, ddk::base_protocol> { |
| public: |
| FakeDisplay(zx_device_t* parent) : DeviceType(parent) {} |
| |
| // This function is called from the c-bind function upon driver matching |
| zx_status_t Bind(); |
| |
| // Required functions needed to implement Display Controller Protocol |
| void DisplayControllerImplSetDisplayControllerInterface( |
| const display_controller_interface_protocol_t* intf); |
| zx_status_t DisplayControllerImplImportVmoImage(image_t* image, zx::vmo vmo, size_t offset); |
| 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); |
| uint32_t DisplayControllerImplComputeLinearStride(uint32_t width, zx_pixel_format_t format); |
| zx_status_t DisplayControllerImplAllocateVmo(uint64_t size, zx::vmo* vmo_out); |
| 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) { |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| // Required functions for DeviceType |
| void DdkUnbind(); |
| void DdkRelease(); |
| |
| private: |
| enum { |
| COMPONENT_PDEV, |
| COMPONENT_SYSMEM, |
| COMPONENT_COUNT, |
| }; |
| zx_device_t* components_[COMPONENT_COUNT]; |
| |
| zx_status_t SetupDisplayInterface(); |
| int VSyncThread(); |
| void PopulateAddedDisplayArgs(added_display_args_t* args); |
| |
| pdev_protocol_t pdev_ = {}; |
| sysmem_protocol_t sysmem_ = {}; |
| |
| std::atomic_bool vsync_shutdown_flag_ = false; |
| |
| // Thread handles |
| thrd_t vsync_thread_; |
| |
| // Locks used by the display driver |
| fbl::Mutex display_lock_; // general display state (i.e. display_id) |
| |
| uint64_t current_image_ TA_GUARDED(display_lock_); |
| bool current_image_valid_ TA_GUARDED(display_lock_); |
| |
| // Display controller related data |
| ddk::DisplayControllerInterfaceProtocolClient dc_intf_ TA_GUARDED(display_lock_); |
| }; |
| |
| } // namespace fake_display |
| |
| #endif // ZIRCON_SYSTEM_DEV_DISPLAY_FAKE_FAKE_DISPLAY_H_ |