/* SPDX-License-Identifier: GPL-2.0-or-later */ /* exynos_drm_drv.h * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * Authors: * Inki Dae <[email protected]> * Joonyoung Shim <[email protected]> * Seung-Woo Kim <[email protected]> */ #ifndef _EXYNOS_DRM_DRV_H_ #define _EXYNOS_DRM_DRV_H_ #include <linux/module.h> #include <drm/drm_crtc.h> #include <drm/drm_device.h> #include <drm/drm_plane.h> #define MAX_CRTC … #define MAX_PLANE … #define MAX_FB_BUFFER … #define DEFAULT_WIN … struct drm_crtc_state; struct drm_display_mode; #define to_exynos_crtc(x) … #define to_exynos_plane(x) … /* this enumerates display type. */ enum exynos_drm_output_type { … }; struct exynos_drm_rect { … }; /* * Exynos drm plane state structure. * * @base: plane_state object (contains drm_framebuffer pointer) * @src: rectangle of the source image data to be displayed (clipped to * visible part). * @crtc: rectangle of the target image position on hardware screen * (clipped to visible part). * @h_ratio: horizontal scaling ratio, 16.16 fixed point * @v_ratio: vertical scaling ratio, 16.16 fixed point * * this structure consists plane state data that will be applied to hardware * specific overlay info. */ struct exynos_drm_plane_state { … }; static inline struct exynos_drm_plane_state * to_exynos_plane_state(struct drm_plane_state *state) { … } /* * Exynos drm common overlay structure. * * @base: plane object * @index: hardware index of the overlay layer * * this structure is common to exynos SoC and its contents would be copied * to hardware specific overlay info. */ struct exynos_drm_plane { … }; #define EXYNOS_DRM_PLANE_CAP_DOUBLE … #define EXYNOS_DRM_PLANE_CAP_SCALE … #define EXYNOS_DRM_PLANE_CAP_ZPOS … #define EXYNOS_DRM_PLANE_CAP_TILE … #define EXYNOS_DRM_PLANE_CAP_PIX_BLEND … #define EXYNOS_DRM_PLANE_CAP_WIN_BLEND … /* * Exynos DRM plane configuration structure. * * @zpos: initial z-position of the plane. * @type: type of the plane (primary, cursor or overlay). * @pixel_formats: supported pixel formats. * @num_pixel_formats: number of elements in 'pixel_formats'. * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*) */ struct exynos_drm_plane_config { … }; /* * Exynos drm crtc ops * * @atomic_enable: enable the device * @atomic_disable: disable the device * @enable_vblank: specific driver callback for enabling vblank interrupt. * @disable_vblank: specific driver callback for disabling vblank interrupt. * @mode_valid: specific driver callback for mode validation * @atomic_check: validate state * @atomic_begin: prepare device to receive an update * @atomic_flush: mark the end of device update * @update_plane: apply hardware specific overlay data to registers. * @disable_plane: disable hardware specific overlay. * @te_handler: trigger to transfer video image at the tearing effect * synchronization signal if there is a page flip request. */ struct exynos_drm_crtc; struct exynos_drm_crtc_ops { … }; struct exynos_drm_clk { … }; /* * Exynos specific crtc structure. * * @base: crtc object. * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. * @ops: pointer to callbacks for exynos drm specific functionality * @ctx: A pointer to the crtc's implementation specific context * @pipe_clk: A pointer to the crtc's pipeline clock. */ struct exynos_drm_crtc { … }; static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc, bool enable) { … } struct drm_exynos_file_private { … }; /* * Exynos drm private structure. * * @pending: the crtcs that have pending updates to finish * @lock: protect access to @pending * @wait: wait an atomic commit to finish */ struct exynos_drm_private { … }; static inline struct device *to_dma_dev(struct drm_device *dev) { … } static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) { … } int exynos_drm_register_dma(struct drm_device *drm, struct device *dev, void **dma_priv); void exynos_drm_unregister_dma(struct drm_device *drm, struct device *dev, void **dma_priv); void exynos_drm_cleanup_dma(struct drm_device *drm); #ifdef CONFIG_DRM_EXYNOS_DPI struct drm_encoder *exynos_dpi_probe(struct device *dev); int exynos_dpi_remove(struct drm_encoder *encoder); int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder); #else static inline struct drm_encoder * exynos_dpi_probe(struct device *dev) { … } static inline int exynos_dpi_remove(struct drm_encoder *encoder) { … } static inline int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder) { … } #endif #ifdef CONFIG_DRM_EXYNOS_FIMC int exynos_drm_check_fimc_device(struct device *dev); #else static inline int exynos_drm_check_fimc_device(struct device *dev) { return 0; } #endif int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, bool nonblock); extern struct platform_driver fimd_driver; extern struct platform_driver exynos5433_decon_driver; extern struct platform_driver decon_driver; extern struct platform_driver dp_driver; extern struct platform_driver dsi_driver; extern struct platform_driver mixer_driver; extern struct platform_driver hdmi_driver; extern struct platform_driver vidi_driver; extern struct platform_driver g2d_driver; extern struct platform_driver fimc_driver; extern struct platform_driver rotator_driver; extern struct platform_driver scaler_driver; extern struct platform_driver gsc_driver; extern struct platform_driver mic_driver; #endif
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