From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 349 ++++++++++++++++++++++++++++++++ 1 file changed, 349 insertions(+) create mode 100644 drivers/gpu/drm/exynos/exynos_drm_drv.h (limited to 'drivers/gpu/drm/exynos/exynos_drm_drv.h') diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h new file mode 100644 index 000000000..29e3fb78c --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -0,0 +1,349 @@ +/* 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 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 device type. */ +enum exynos_drm_device_type { + EXYNOS_DEVICE_TYPE_NONE, + EXYNOS_DEVICE_TYPE_CRTC, + EXYNOS_DEVICE_TYPE_CONNECTOR, +}; + +/* 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_width: width of a partial image to be displayed from framebuffer. + * @src_height: height of a partial image to be displayed from framebuffer. + * @fb_width: width of a framebuffer. + * @fb_height: height of a framebuffer. + * @crtc_x: offset x on hardware screen. + * @crtc_y: offset y on hardware screen. + * @crtc_width: window width to be displayed (hardware screen). + * @crtc_height: window height to be displayed (hardware screen). + * @mode_width: width of screen mode. + * @mode_height: height of screen mode. + * @h_ratio: horizontal scaling ratio, 16.16 fixed point + * @v_ratio: vertical scaling ratio, 16.16 fixed point + * @refresh: refresh rate. + * @scan_flag: interlace or progressive way. + * (it could be DRM_MODE_FLAG_*) + * @bpp: pixel size.(in bit) + * @pixel_format: fourcc pixel format of this overlay + * @dma_addr: array of bus(accessed by dma) address to the memory region + * allocated for a overlay. + * @zpos: order of overlay layer(z position). + * @enabled: enabled or not. + * @resume: to resume or not. + * + * 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_width; + unsigned int src_height; + unsigned int fb_width; + unsigned int fb_height; + unsigned int crtc_x; + unsigned int crtc_y; + unsigned int crtc_width; + unsigned int crtc_height; + unsigned int mode_width; + unsigned int mode_height; + unsigned int h_ratio; + unsigned int v_ratio; + unsigned int refresh; + unsigned int scan_flag; + unsigned int bpp; + unsigned int pitch; + uint32_t pixel_format; + dma_addr_t dma_addr[MAX_FB_BUFFER]; + unsigned int zpos; + + bool enabled:1; + bool resume:1; +}; + +/* + * Exynos DRM Display Structure. + * - this structure is common to analog tv, digital tv and lcd panel. + * + * @create_connector: initialize and register a new connector + * @remove: cleans up the display for removal + * @mode_fixup: fix mode data comparing to hw specific display mode. + * @mode_set: convert drm_display_mode to hw specific display mode and + * would be called by encoder->mode_set(). + * @check_mode: check if mode is valid or not. + * @dpms: display device on or off. + * @commit: apply changes to hw + */ +struct exynos_drm_display; +struct exynos_drm_display_ops { + int (*create_connector)(struct exynos_drm_display *display, + struct drm_encoder *encoder); + void (*remove)(struct exynos_drm_display *display); + void (*mode_fixup)(struct exynos_drm_display *display, + struct drm_connector *connector, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + void (*mode_set)(struct exynos_drm_display *display, + struct drm_display_mode *mode); + int (*check_mode)(struct exynos_drm_display *display, + struct drm_display_mode *mode); + void (*dpms)(struct exynos_drm_display *display, int mode); + void (*commit)(struct exynos_drm_display *display); +}; + +/* + * Exynos drm display structure, maps 1:1 with an encoder/connector + * + * @list: the list entry for this manager + * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. + * @encoder: encoder object this display maps to + * @connector: connector object this display maps to + * @ops: pointer to callbacks for exynos drm specific functionality + * @ctx: A pointer to the display's implementation specific context + */ +struct exynos_drm_display { + struct list_head list; + enum exynos_drm_output_type type; + struct drm_encoder *encoder; + struct drm_connector *connector; + struct exynos_drm_display_ops *ops; +}; + +/* + * Exynos drm crtc ops + * + * @dpms: control device power. + * @mode_fixup: fix mode data before applying it + * @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. + * @win_commit: apply hardware specific overlay data to registers. + * @win_disable: 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 (*dpms)(struct exynos_drm_crtc *crtc, int mode); + bool (*mode_fixup)(struct exynos_drm_crtc *crtc, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + 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 (*win_commit)(struct exynos_drm_crtc *crtc, unsigned int zpos); + void (*win_disable)(struct exynos_drm_crtc *crtc, unsigned int zpos); + 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. + * @dpms: store the crtc dpms value + * @event: vblank event that is currently queued for flip + * @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; + unsigned int dpms; + wait_queue_head_t pending_flip_queue; + struct drm_pending_vblank_event *event; + 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. + */ +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; +}; + +/* + * 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_IPP +int exynos_platform_device_ipp_register(void); +void exynos_platform_device_ipp_unregister(void); +#else +static inline int exynos_platform_device_ipp_register(void) { return 0; } +static inline void exynos_platform_device_ipp_unregister(void) {} +#endif + + +#ifdef CONFIG_DRM_EXYNOS_DPI +struct exynos_drm_display * exynos_dpi_probe(struct device *dev); +int exynos_dpi_remove(struct exynos_drm_display *display); +#else +static inline struct exynos_drm_display * +exynos_dpi_probe(struct device *dev) { return NULL; } +static inline int exynos_dpi_remove(struct exynos_drm_display *display) +{ + return 0; +} +#endif + +#ifdef CONFIG_DRM_EXYNOS_VIDI +int exynos_drm_probe_vidi(void); +void exynos_drm_remove_vidi(void); +#else +static inline int exynos_drm_probe_vidi(void) { return 0; } +static inline void exynos_drm_remove_vidi(void) {} +#endif + +/* This function creates a encoder and a connector, and initializes them. */ +int exynos_drm_create_enc_conn(struct drm_device *dev, + struct exynos_drm_display *display); + +int exynos_drm_component_add(struct device *dev, + enum exynos_drm_device_type dev_type, + enum exynos_drm_output_type out_type); + +void exynos_drm_component_del(struct device *dev, + enum exynos_drm_device_type dev_type); + +extern struct platform_driver fimd_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; +#endif -- cgit v1.2.3-54-g00ecf