| // 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. |
| |
| #pragma once |
| |
| #include <unistd.h> |
| |
| #include <zircon/compiler.h> |
| #include <zircon/pixelformat.h> |
| #include <zircon/thread_annotations.h> |
| #include <lib/zx/interrupt.h> |
| #include <lib/zx/bti.h> |
| |
| #include <ddk/driver.h> |
| #include <ddk/protocol/platform/device.h> |
| #include <ddk/protocol/gpio.h> |
| #include <ddk/protocol/amlogiccanvas.h> |
| #include <ddk/debug.h> |
| |
| #include <ddktl/protocol/display/controller.h> |
| #include <ddktl/device.h> |
| |
| #include <fbl/auto_lock.h> |
| #include <fbl/mutex.h> |
| #include <fbl/unique_ptr.h> |
| |
| #include <bitmap/raw-bitmap.h> |
| #include <bitmap/storage.h> |
| #include "vpu.h" |
| #include "osd.h" |
| #include "astro-clock.h" |
| #include "aml-dsi-host.h" |
| #include "common.h" |
| |
| namespace astro_display { |
| |
| class AstroDisplay; |
| |
| constexpr uint8_t kMaxImportedImages = 255; |
| using ImportedImageBitmap = bitmap::RawBitmapGeneric<bitmap::FixedStorage<kMaxImportedImages>>; |
| |
| // AstroDisplay will implement only a few subset of Device. |
| using DeviceType = ddk::Device<AstroDisplay, ddk::Unbindable>; |
| |
| class AstroDisplay : public DeviceType, |
| public ddk::DisplayControllerImplProtocol<AstroDisplay, ddk::base_protocol> { |
| public: |
| AstroDisplay(zx_device_t* parent, uint32_t width, uint32_t height) |
| : DeviceType(parent), width_(width), height_(height) {} |
| |
| // 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_t* intf); |
| zx_status_t DisplayControllerImplImportVmoImage(image_t* image, zx::vmo vmo, size_t offset); |
| 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); |
| |
| // Required functions for DeviceType |
| void DdkUnbind(); |
| void DdkRelease(); |
| |
| void Dump(); |
| |
| private: |
| zx_status_t SetupDisplayInterface(); |
| int VSyncThread(); |
| void CopyDisplaySettings(); |
| void PopulateAddedDisplayArgs(added_display_args_t* args); |
| void PopulatePanelType() TA_REQ(display_lock_); |
| |
| // This function enables the display hardware. This function is disruptive and causes |
| // unexpected pixels to be visible on the screen. |
| zx_status_t DisplayInit() TA_REQ(display_lock_); |
| |
| // Zircon handles |
| zx::bti bti_; |
| zx::interrupt inth_; |
| |
| // Thread handles |
| thrd_t vsync_thread_; |
| |
| // Protocol handles used in by this driver |
| pdev_protocol_t pdev_ = {}; |
| gpio_protocol_t gpio_ = {}; |
| amlogic_canvas_protocol_t canvas_ = {}; |
| |
| // Board Info |
| pdev_board_info_t board_info_; |
| |
| // Interrupts |
| zx::interrupt vsync_irq_; |
| |
| // Locks used by the display driver |
| fbl::Mutex display_lock_; // general display state (i.e. display_id) |
| fbl::Mutex image_lock_; // used for accessing imported_images_ |
| |
| // TODO(stevensd): This can race if this is changed right after |
| // vsync but before the interrupt is handled. |
| uint8_t current_image_ TA_GUARDED(display_lock_);; |
| bool current_image_valid_ TA_GUARDED(display_lock_);; |
| |
| // display dimensions and format |
| uint32_t width_; |
| uint32_t height_; |
| uint32_t stride_; |
| zx_pixel_format_t format_; |
| |
| const DisplaySetting* init_disp_table_ = nullptr; |
| |
| // This flag is used to skip all driver initializations for older |
| // boards that we don't support. Those boards will depend on U-Boot |
| // to set things up |
| bool skip_disp_init_ TA_GUARDED(display_lock_); |
| |
| bool full_init_done_ = false; |
| |
| // board revision and panel type detected by the display driver |
| uint8_t panel_type_ TA_GUARDED(display_lock_); |
| |
| // Display structure used by various layers of display controller |
| DisplaySetting disp_setting_; |
| |
| // Display controller related data |
| ddk::DisplayControllerInterfaceClient dc_intf_ TA_GUARDED(display_lock_); |
| |
| // Simple hashtable |
| ImportedImageBitmap imported_images_ TA_GUARDED(image_lock_);; |
| |
| // Objects |
| fbl::unique_ptr<astro_display::Vpu> vpu_; |
| fbl::unique_ptr<astro_display::Osd> osd_; |
| fbl::unique_ptr<astro_display::AstroDisplayClock> clock_; |
| fbl::unique_ptr<astro_display::AmlDsiHost> dsi_host_; |
| }; |
| |
| } // namespace astro_display |