/* exynos_drm_drv.h * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * Authors: * Inki Dae * Joonyoung Shim * Seung-Woo Kim * * 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 #include #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, }; /* * Exynos drm common overlay structure. * * @base: plane object * @src_x: offset x on a framebuffer to be displayed. * - the unit is screen coordinates. * @src_y: offset y on a framebuffer to be displayed. * - the unit is screen coordinates. * @src_w: width of a partial image to be displayed from framebuffer. * @src_h: height of a partial image to be displayed from framebuffer. * @crtc_x: offset x on hardware screen. * @crtc_y: offset y on hardware screen. * @crtc_w: window width to be displayed (hardware screen). * @crtc_h: window height to be displayed (hardware screen). * @h_ratio: horizontal scaling ratio, 16.16 fixed point * @v_ratio: vertical scaling ratio, 16.16 fixed point * @dma_addr: array of bus(accessed by dma) address to the memory region * allocated for a overlay. * @zpos: order of overlay layer(z position). * * 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; unsigned int src_x; unsigned int src_y; unsigned int src_w; unsigned int src_h; unsigned int crtc_x; unsigned int crtc_y; unsigned int crtc_w; unsigned int crtc_h; unsigned int h_ratio; unsigned int v_ratio; dma_addr_t dma_addr[MAX_FB_BUFFER]; unsigned int zpos; struct drm_framebuffer *pending_fb; }; /* * 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. * @wait_for_vblank: wait for vblank interrupt to make sure that * hardware overlay is updated. * @atomic_begin: prepare a window to receive a update * @atomic_flush: mark the end of a window 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. * @clock_enable: optional function enabling/disabling display domain clock, * called from exynos-dp driver before powering up (with * 'enable' argument as true) and after powering down (with * 'enable' as false). */ 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); void (*wait_for_vblank)(struct exynos_drm_crtc *crtc); void (*atomic_begin)(struct exynos_drm_crtc *crtc, struct exynos_drm_plane *plane); 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, struct exynos_drm_plane *plane); void (*te_handler)(struct exynos_drm_crtc *crtc); void (*clock_enable)(struct exynos_drm_crtc *crtc, 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; struct drm_pending_vblank_event *event; wait_queue_head_t wait_update; atomic_t pending_update; const struct exynos_drm_crtc_ops *ops; void *ctx; }; 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 drm_property *plane_zpos_property; unsigned long da_start; unsigned long da_space_size; unsigned int pipe; /* for atomic commit */ u32 pending; spinlock_t lock; wait_queue_head_t wait; }; /* * 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 async); 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 exynos_drm_common_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