| /* 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> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| #ifndef _EXYNOS_DRM_DRV_H_ |
| #define _EXYNOS_DRM_DRV_H_ |
| |
| #include <drm/drmP.h> |
| #include <linux/module.h> |
| |
| #define MAX_CRTC 3 |
| #define MAX_PLANE 5 |
| #define MAX_FB_BUFFER 4 |
| |
| #define DEFAULT_WIN 0 |
| |
| #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) |
| |
| /* |
| * 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 |
| * |
| * @enable: enable the device |
| * @disable: disable the device |
| * @commit: set current hw specific display mode to hw. |
| * @enable_vblank: specific driver callback for enabling vblank interrupt. |
| * @disable_vblank: specific driver callback for disabling vblank interrupt. |
| * @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 (*enable)(struct exynos_drm_crtc *crtc); |
| void (*disable)(struct exynos_drm_crtc *crtc); |
| void (*commit)(struct exynos_drm_crtc *crtc); |
| int (*enable_vblank)(struct exynos_drm_crtc *crtc); |
| void (*disable_vblank)(struct exynos_drm_crtc *crtc); |
| 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. |
| * @pipe: a crtc index created at load() with a new crtc object creation |
| * and the crtc object would be set to private->crtc array |
| * to get a crtc object corresponding to this pipe from private->crtc |
| * array when irq interrupt occurred. the reason of using this pipe is that |
| * drm framework doesn't support multiple irq yet. |
| * we can refer to the crtc to current hardware interrupt occurred through |
| * this pipe value. |
| * @enabled: if the crtc is enabled or not |
| * @event: vblank event that is currently queued for flip |
| * @wait_update: wait all pending planes updates to finish |
| * @pending_update: number of pending plane updates in this crtc |
| * @ops: pointer to callbacks for exynos drm specific functionality |
| * @ctx: A pointer to the crtc's implementation specific context |
| */ |
| struct exynos_drm_crtc { |
| struct drm_crtc base; |
| enum exynos_drm_output_type type; |
| unsigned int pipe; |
| const struct exynos_drm_crtc_ops *ops; |
| void *ctx; |
| struct exynos_drm_clk *pipe_clk; |
| }; |
| |
| 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 exynos_drm_g2d_private { |
| struct device *dev; |
| struct list_head inuse_cmdlist; |
| struct list_head event_list; |
| struct list_head userptr_list; |
| }; |
| |
| struct drm_exynos_file_private { |
| struct exynos_drm_g2d_private *g2d_priv; |
| struct device *ipp_dev; |
| }; |
| |
| /* |
| * Exynos drm private structure. |
| * |
| * @da_start: start address to device address space. |
| * with iommu, device address space starts from this address |
| * otherwise default one. |
| * @da_space_size: size of device address space. |
| * if 0 then default value is used for it. |
| * @pipe: the pipe number for this crtc/manager. |
| * @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; |
| |
| /* |
| * created crtc object would be contained at this array and |
| * this array is used to be aware of which crtc did it request vblank. |
| */ |
| struct drm_crtc *crtc[MAX_CRTC]; |
| |
| struct device *dma_dev; |
| void *mapping; |
| |
| unsigned int pipe; |
| |
| /* for atomic commit */ |
| u32 pending; |
| spinlock_t lock; |
| wait_queue_head_t wait; |
| }; |
| |
| static inline struct exynos_drm_crtc * |
| exynos_drm_crtc_from_pipe(struct drm_device *dev, int pipe) |
| { |
| struct exynos_drm_private *private = dev->dev_private; |
| |
| return to_exynos_crtc(private->crtc[pipe]); |
| } |
| |
| static inline struct device *to_dma_dev(struct drm_device *dev) |
| { |
| struct exynos_drm_private *priv = dev->dev_private; |
| |
| return priv->dma_dev; |
| } |
| |
| /* |
| * Exynos drm sub driver structure. |
| * |
| * @list: sub driver has its own list object to register to exynos drm driver. |
| * @dev: pointer to device object for subdrv device driver. |
| * @drm_dev: pointer to drm_device and this pointer would be set |
| * when sub driver calls exynos_drm_subdrv_register(). |
| * @probe: this callback would be called by exynos drm driver after |
| * subdrv is registered to it. |
| * @remove: this callback is used to release resources created |
| * by probe callback. |
| * @open: this would be called with drm device file open. |
| * @close: this would be called with drm device file close. |
| */ |
| struct exynos_drm_subdrv { |
| struct list_head list; |
| struct device *dev; |
| struct drm_device *drm_dev; |
| |
| int (*probe)(struct drm_device *drm_dev, struct device *dev); |
| void (*remove)(struct drm_device *drm_dev, struct device *dev); |
| int (*open)(struct drm_device *drm_dev, struct device *dev, |
| struct drm_file *file); |
| void (*close)(struct drm_device *drm_dev, struct device *dev, |
| struct drm_file *file); |
| }; |
| |
| /* This function would be called by non kms drivers such as g2d and ipp. */ |
| int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); |
| |
| /* this function removes subdrv list from exynos drm driver */ |
| int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); |
| |
| int exynos_drm_device_subdrv_probe(struct drm_device *dev); |
| int exynos_drm_device_subdrv_remove(struct drm_device *dev); |
| int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); |
| void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); |
| |
| #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 |
| |
| int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, |
| bool nonblock); |
| int exynos_atomic_check(struct drm_device *dev, struct drm_atomic_state *state); |
| |
| |
| 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 gsc_driver; |
| extern struct platform_driver ipp_driver; |
| extern struct platform_driver mic_driver; |
| #endif |