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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /* exynos_drm_drv.h
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Authors:
- * Inki Dae <inki.dae@samsung.com>
- * Joonyoung Shim <jy0922.shim@samsung.com>
- * Seung-Woo Kim <sw0312.kim@samsung.com>
- */
- #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 3
- #define MAX_PLANE 5
- #define MAX_FB_BUFFER 4
- #define DEFAULT_WIN 0
- struct drm_crtc_state;
- struct drm_display_mode;
- #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
- #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
- /* this enumerates display type. */
- enum exynos_drm_output_type {
- EXYNOS_DISPLAY_TYPE_NONE,
- /* RGB or CPU Interface. */
- EXYNOS_DISPLAY_TYPE_LCD,
- /* HDMI Interface. */
- EXYNOS_DISPLAY_TYPE_HDMI,
- /* Virtual Display Interface. */
- EXYNOS_DISPLAY_TYPE_VIDI,
- };
- struct exynos_drm_rect {
- unsigned int x, y;
- unsigned int w, h;
- };
- /*
- * 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 {
- struct drm_plane_state base;
- struct exynos_drm_rect crtc;
- struct exynos_drm_rect src;
- unsigned int h_ratio;
- unsigned int v_ratio;
- };
- static inline struct exynos_drm_plane_state *
- to_exynos_plane_state(struct drm_plane_state *state)
- {
- return container_of(state, struct exynos_drm_plane_state, base);
- }
- /*
- * 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 {
- struct drm_plane base;
- const struct exynos_drm_plane_config *config;
- unsigned int index;
- };
- #define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
- #define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
- #define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
- #define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3)
- #define EXYNOS_DRM_PLANE_CAP_PIX_BLEND (1 << 4)
- #define EXYNOS_DRM_PLANE_CAP_WIN_BLEND (1 << 5)
- /*
- * 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 {
- unsigned int zpos;
- enum drm_plane_type type;
- const uint32_t *pixel_formats;
- unsigned int num_pixel_formats;
- unsigned int capabilities;
- };
- /*
- * 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 {
- void (*atomic_enable)(struct exynos_drm_crtc *crtc);
- void (*atomic_disable)(struct exynos_drm_crtc *crtc);
- int (*enable_vblank)(struct exynos_drm_crtc *crtc);
- void (*disable_vblank)(struct exynos_drm_crtc *crtc);
- enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
- const struct drm_display_mode *mode);
- bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
- int (*atomic_check)(struct exynos_drm_crtc *crtc,
- struct drm_crtc_state *state);
- void (*atomic_begin)(struct exynos_drm_crtc *crtc);
- void (*update_plane)(struct exynos_drm_crtc *crtc,
- struct exynos_drm_plane *plane);
- void (*disable_plane)(struct exynos_drm_crtc *crtc,
- struct exynos_drm_plane *plane);
- void (*atomic_flush)(struct exynos_drm_crtc *crtc);
- void (*te_handler)(struct exynos_drm_crtc *crtc);
- };
- struct exynos_drm_clk {
- void (*enable)(struct exynos_drm_clk *clk, bool enable);
- };
- /*
- * 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 {
- struct drm_crtc base;
- enum exynos_drm_output_type type;
- const struct exynos_drm_crtc_ops *ops;
- void *ctx;
- struct exynos_drm_clk *pipe_clk;
- bool i80_mode : 1;
- };
- static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
- bool enable)
- {
- if (crtc->pipe_clk)
- crtc->pipe_clk->enable(crtc->pipe_clk, enable);
- }
- struct drm_exynos_file_private {
- /* for g2d api */
- struct list_head inuse_cmdlist;
- struct list_head event_list;
- struct list_head userptr_list;
- };
- /*
- * 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 {
- struct drm_fb_helper *fb_helper;
- struct device *g2d_dev;
- struct device *dma_dev;
- void *mapping;
- /* for atomic commit */
- u32 pending;
- spinlock_t lock;
- wait_queue_head_t wait;
- };
- static inline struct device *to_dma_dev(struct drm_device *dev)
- {
- struct exynos_drm_private *priv = dev->dev_private;
- return priv->dma_dev;
- }
- static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
- {
- struct exynos_drm_private *priv = drm_dev->dev_private;
- return priv->mapping ? true : false;
- }
- 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) { return NULL; }
- static inline int exynos_dpi_remove(struct drm_encoder *encoder)
- {
- return 0;
- }
- static inline int exynos_dpi_bind(struct drm_device *dev,
- struct drm_encoder *encoder)
- {
- return 0;
- }
- #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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