| /* 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 <linux/module.h> |
| |
| #define MAX_CRTC 3 |
| #define MAX_PLANE 5 |
| #define MAX_FB_BUFFER 4 |
| #define DEFAULT_ZPOS -1 |
| |
| #define _wait_for(COND, MS) ({ \ |
| unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \ |
| int ret__ = 0; \ |
| while (!(COND)) { \ |
| if (time_after(jiffies, timeout__)) { \ |
| ret__ = -ETIMEDOUT; \ |
| break; \ |
| } \ |
| } \ |
| ret__; \ |
| }) |
| |
| #define wait_for(COND, MS) _wait_for(COND, MS) |
| |
| struct drm_device; |
| struct exynos_drm_overlay; |
| struct drm_connector; |
| |
| extern unsigned int drm_vblank_offdelay; |
| |
| /* 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 overlay ops structure. |
| * |
| * @mode_set: copy drm overlay info to hw specific overlay info. |
| * @commit: apply hardware specific overlay data to registers. |
| * @enable: enable hardware specific overlay. |
| * @disable: disable hardware specific overlay. |
| */ |
| struct exynos_drm_overlay_ops { |
| void (*mode_set)(struct device *subdrv_dev, |
| struct exynos_drm_overlay *overlay); |
| void (*commit)(struct device *subdrv_dev, int zpos); |
| void (*enable)(struct device *subdrv_dev, int zpos); |
| void (*disable)(struct device *subdrv_dev, int zpos); |
| }; |
| |
| /* |
| * Exynos drm common overlay structure. |
| * |
| * @fb_x: offset x on a framebuffer to be displayed. |
| * - the unit is screen coordinates. |
| * @fb_y: offset y on a framebuffer to be displayed. |
| * - the unit is screen coordinates. |
| * @fb_width: width of a framebuffer. |
| * @fb_height: height of a framebuffer. |
| * @src_width: width of a partial image to be displayed from framebuffer. |
| * @src_height: 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_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. |
| * @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). |
| * @default_win: a window to be enabled. |
| * @color_key: color key on or off. |
| * @index_color: if using color key feature then this value would be used |
| * as index color. |
| * @local_path: in case of lcd type, local path mode on or off. |
| * @transparency: transparency on or off. |
| * @activated: activated or not. |
| * |
| * this structure is common to exynos SoC and its contents would be copied |
| * to hardware specific overlay info. |
| */ |
| struct exynos_drm_overlay { |
| unsigned int fb_x; |
| unsigned int fb_y; |
| unsigned int fb_width; |
| unsigned int fb_height; |
| unsigned int src_width; |
| unsigned int src_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 refresh; |
| unsigned int scan_flag; |
| unsigned int bpp; |
| unsigned int pitch; |
| uint32_t pixel_format; |
| dma_addr_t dma_addr[MAX_FB_BUFFER]; |
| int zpos; |
| |
| bool default_win; |
| bool color_key; |
| unsigned int index_color; |
| bool local_path; |
| bool transparency; |
| bool activated; |
| }; |
| |
| /* |
| * Exynos DRM Display Structure. |
| * - this structure is common to analog tv, digital tv and lcd panel. |
| * |
| * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. |
| * @is_connected: check for that display is connected or not. |
| * @get_edid: get edid modes from display driver. |
| * @get_panel: get panel object from display driver. |
| * @check_timing: check if timing is valid or not. |
| * @power_on: display device on or off. |
| */ |
| struct exynos_drm_display_ops { |
| enum exynos_drm_output_type type; |
| bool (*is_connected)(struct device *dev); |
| struct edid *(*get_edid)(struct device *dev, |
| struct drm_connector *connector); |
| void *(*get_panel)(struct device *dev); |
| int (*check_timing)(struct device *dev, void *timing); |
| int (*power_on)(struct device *dev, int mode); |
| }; |
| |
| /* |
| * Exynos drm manager ops |
| * |
| * @dpms: control device power. |
| * @apply: set timing, vblank and overlay data to registers. |
| * @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(). |
| * @get_max_resol: get maximum resolution to specific hardware. |
| * @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. |
| */ |
| struct exynos_drm_manager_ops { |
| void (*dpms)(struct device *subdrv_dev, int mode); |
| void (*apply)(struct device *subdrv_dev); |
| void (*mode_fixup)(struct device *subdrv_dev, |
| struct drm_connector *connector, |
| const struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode); |
| void (*mode_set)(struct device *subdrv_dev, void *mode); |
| void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width, |
| unsigned int *height); |
| void (*commit)(struct device *subdrv_dev); |
| int (*enable_vblank)(struct device *subdrv_dev); |
| void (*disable_vblank)(struct device *subdrv_dev); |
| void (*wait_for_vblank)(struct device *subdrv_dev); |
| }; |
| |
| /* |
| * Exynos drm common manager structure. |
| * |
| * @dev: pointer to device object for subdrv device driver. |
| * sub drivers such as display controller or hdmi driver, |
| * have their own device object. |
| * @ops: pointer to callbacks for exynos drm specific framebuffer. |
| * these callbacks should be set by specific drivers such fimd |
| * or hdmi driver and are used to control hardware global registers. |
| * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer. |
| * these callbacks should be set by specific drivers such fimd |
| * or hdmi driver and are used to control hardware overlay reigsters. |
| * @display: pointer to callbacks for exynos drm specific framebuffer. |
| * these callbacks should be set by specific drivers such fimd |
| * or hdmi driver and are used to control display devices such as |
| * analog tv, digital tv and lcd panel and also get timing data for them. |
| */ |
| struct exynos_drm_manager { |
| struct device *dev; |
| int pipe; |
| struct exynos_drm_manager_ops *ops; |
| struct exynos_drm_overlay_ops *overlay_ops; |
| struct exynos_drm_display_ops *display_ops; |
| }; |
| |
| struct exynos_drm_g2d_private { |
| struct device *dev; |
| struct list_head inuse_cmdlist; |
| struct list_head event_list; |
| struct list_head userptr_list; |
| }; |
| |
| struct exynos_drm_ipp_private { |
| struct device *dev; |
| struct list_head event_list; |
| }; |
| |
| struct drm_exynos_file_private { |
| struct exynos_drm_g2d_private *g2d_priv; |
| struct exynos_drm_ipp_private *ipp_priv; |
| }; |
| |
| /* |
| * 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. |
| * @da_space_order: order to device address space. |
| */ |
| struct exynos_drm_private { |
| struct drm_fb_helper *fb_helper; |
| |
| /* list head for new event to be added. */ |
| struct list_head pageflip_event_list; |
| |
| /* |
| * 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; |
| struct drm_property *crtc_mode_property; |
| |
| unsigned long da_start; |
| unsigned long da_space_size; |
| unsigned long da_space_order; |
| }; |
| |
| /* |
| * 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(). |
| * @manager: subdrv has its own manager to control a hardware appropriately |
| * and we can access a hardware drawing on this manager. |
| * @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. |
| * @encoder: encoder object owned by this sub driver. |
| * @connector: connector object owned by this sub driver. |
| */ |
| struct exynos_drm_subdrv { |
| struct list_head list; |
| struct device *dev; |
| struct drm_device *drm_dev; |
| struct exynos_drm_manager *manager; |
| |
| 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); |
| |
| struct drm_encoder *encoder; |
| struct drm_connector *connector; |
| }; |
| |
| /* |
| * this function calls a probe callback registered to sub driver list and |
| * create its own encoder and connector and then set drm_device object |
| * to global one. |
| */ |
| int exynos_drm_device_register(struct drm_device *dev); |
| /* |
| * this function calls a remove callback registered to sub driver list and |
| * destroy its own encoder and connetor. |
| */ |
| int exynos_drm_device_unregister(struct drm_device *dev); |
| |
| /* |
| * this function would be called by sub drivers such as display controller |
| * or hdmi driver to register this sub driver object to exynos drm driver |
| * and when a sub driver is registered to exynos drm driver a probe callback |
| * of the sub driver is called and creates its own encoder and connector. |
| */ |
| 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_subdrv_open(struct drm_device *dev, struct drm_file *file); |
| void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); |
| |
| /* |
| * this function registers exynos drm hdmi platform device. It ensures only one |
| * instance of the device is created. |
| */ |
| extern int exynos_platform_device_hdmi_register(void); |
| |
| /* |
| * this function unregisters exynos drm hdmi platform device if it exists. |
| */ |
| void exynos_platform_device_hdmi_unregister(void); |
| |
| extern struct platform_driver fimd_driver; |
| extern struct platform_driver hdmi_driver; |
| extern struct platform_driver mixer_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 |