mirror of https://gitee.com/openkylin/linux.git
291 lines
10 KiB
C
291 lines
10 KiB
C
/* exynos_drm_drv.h
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authors:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _EXYNOS_DRM_DRV_H_
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#define _EXYNOS_DRM_DRV_H_
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#include <linux/module.h>
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#include "drm.h"
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#define MAX_CRTC 3
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#define MAX_PLANE 5
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#define MAX_FB_BUFFER 4
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#define DEFAULT_ZPOS -1
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struct drm_device;
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struct exynos_drm_overlay;
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struct drm_connector;
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extern unsigned int drm_vblank_offdelay;
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/* this enumerates display type. */
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enum exynos_drm_output_type {
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EXYNOS_DISPLAY_TYPE_NONE,
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/* RGB or CPU Interface. */
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EXYNOS_DISPLAY_TYPE_LCD,
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/* HDMI Interface. */
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EXYNOS_DISPLAY_TYPE_HDMI,
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/* Virtual Display Interface. */
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EXYNOS_DISPLAY_TYPE_VIDI,
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};
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/*
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* Exynos drm overlay ops structure.
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*
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* @mode_set: copy drm overlay info to hw specific overlay info.
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* @commit: apply hardware specific overlay data to registers.
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* @disable: disable hardware specific overlay.
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*/
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struct exynos_drm_overlay_ops {
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void (*mode_set)(struct device *subdrv_dev,
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struct exynos_drm_overlay *overlay);
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void (*commit)(struct device *subdrv_dev, int zpos);
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void (*disable)(struct device *subdrv_dev, int zpos);
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};
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/*
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* Exynos drm common overlay structure.
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*
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* @fb_x: offset x on a framebuffer to be displayed.
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* - the unit is screen coordinates.
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* @fb_y: offset y on a framebuffer to be displayed.
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* - the unit is screen coordinates.
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* @fb_width: width of a framebuffer.
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* @fb_height: height of a framebuffer.
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* @crtc_x: offset x on hardware screen.
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* @crtc_y: offset y on hardware screen.
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* @crtc_width: window width to be displayed (hardware screen).
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* @crtc_height: window height to be displayed (hardware screen).
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* @mode_width: width of screen mode.
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* @mode_height: height of screen mode.
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* @refresh: refresh rate.
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* @scan_flag: interlace or progressive way.
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* (it could be DRM_MODE_FLAG_*)
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* @bpp: pixel size.(in bit)
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* @pixel_format: fourcc pixel format of this overlay
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* @dma_addr: array of bus(accessed by dma) address to the memory region
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* allocated for a overlay.
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* @vaddr: array of virtual memory addresss to this overlay.
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* @zpos: order of overlay layer(z position).
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* @default_win: a window to be enabled.
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* @color_key: color key on or off.
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* @index_color: if using color key feature then this value would be used
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* as index color.
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* @local_path: in case of lcd type, local path mode on or off.
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* @transparency: transparency on or off.
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* @activated: activated or not.
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*
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* this structure is common to exynos SoC and its contents would be copied
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* to hardware specific overlay info.
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*/
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struct exynos_drm_overlay {
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unsigned int fb_x;
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unsigned int fb_y;
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unsigned int fb_width;
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unsigned int fb_height;
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unsigned int crtc_x;
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unsigned int crtc_y;
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unsigned int crtc_width;
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unsigned int crtc_height;
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unsigned int mode_width;
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unsigned int mode_height;
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unsigned int refresh;
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unsigned int scan_flag;
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unsigned int bpp;
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unsigned int pitch;
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uint32_t pixel_format;
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dma_addr_t dma_addr[MAX_FB_BUFFER];
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void __iomem *vaddr[MAX_FB_BUFFER];
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int zpos;
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bool default_win;
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bool color_key;
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unsigned int index_color;
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bool local_path;
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bool transparency;
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bool activated;
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};
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/*
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* Exynos DRM Display Structure.
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* - this structure is common to analog tv, digital tv and lcd panel.
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*
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* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
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* @is_connected: check for that display is connected or not.
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* @get_edid: get edid modes from display driver.
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* @get_panel: get panel object from display driver.
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* @check_timing: check if timing is valid or not.
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* @power_on: display device on or off.
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*/
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struct exynos_drm_display_ops {
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enum exynos_drm_output_type type;
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bool (*is_connected)(struct device *dev);
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int (*get_edid)(struct device *dev, struct drm_connector *connector,
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u8 *edid, int len);
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void *(*get_panel)(struct device *dev);
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int (*check_timing)(struct device *dev, void *timing);
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int (*power_on)(struct device *dev, int mode);
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};
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/*
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* Exynos drm manager ops
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*
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* @dpms: control device power.
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* @apply: set timing, vblank and overlay data to registers.
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* @mode_fixup: fix mode data comparing to hw specific display mode.
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* @mode_set: convert drm_display_mode to hw specific display mode and
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* would be called by encoder->mode_set().
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* @get_max_resol: get maximum resolution to specific hardware.
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* @commit: set current hw specific display mode to hw.
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* @enable_vblank: specific driver callback for enabling vblank interrupt.
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* @disable_vblank: specific driver callback for disabling vblank interrupt.
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*/
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struct exynos_drm_manager_ops {
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void (*dpms)(struct device *subdrv_dev, int mode);
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void (*apply)(struct device *subdrv_dev);
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void (*mode_fixup)(struct device *subdrv_dev,
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struct drm_connector *connector,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(struct device *subdrv_dev, void *mode);
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void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
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unsigned int *height);
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void (*commit)(struct device *subdrv_dev);
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int (*enable_vblank)(struct device *subdrv_dev);
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void (*disable_vblank)(struct device *subdrv_dev);
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};
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/*
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* Exynos drm common manager structure.
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*
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* @dev: pointer to device object for subdrv device driver.
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* sub drivers such as display controller or hdmi driver,
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* have their own device object.
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* @ops: pointer to callbacks for exynos drm specific framebuffer.
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* these callbacks should be set by specific drivers such fimd
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* or hdmi driver and are used to control hardware global registers.
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* @overlay_ops: pointer to callbacks for exynos drm specific framebuffer.
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* these callbacks should be set by specific drivers such fimd
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* or hdmi driver and are used to control hardware overlay reigsters.
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* @display: pointer to callbacks for exynos drm specific framebuffer.
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* these callbacks should be set by specific drivers such fimd
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* or hdmi driver and are used to control display devices such as
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* analog tv, digital tv and lcd panel and also get timing data for them.
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*/
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struct exynos_drm_manager {
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struct device *dev;
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int pipe;
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struct exynos_drm_manager_ops *ops;
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struct exynos_drm_overlay_ops *overlay_ops;
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struct exynos_drm_display_ops *display_ops;
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};
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/*
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* Exynos drm private structure.
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*/
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struct exynos_drm_private {
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struct drm_fb_helper *fb_helper;
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/* list head for new event to be added. */
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struct list_head pageflip_event_list;
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/*
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* created crtc object would be contained at this array and
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* this array is used to be aware of which crtc did it request vblank.
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*/
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struct drm_crtc *crtc[MAX_CRTC];
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};
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/*
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* Exynos drm sub driver structure.
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*
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* @list: sub driver has its own list object to register to exynos drm driver.
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* @dev: pointer to device object for subdrv device driver.
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* @drm_dev: pointer to drm_device and this pointer would be set
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* when sub driver calls exynos_drm_subdrv_register().
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* @manager: subdrv has its own manager to control a hardware appropriately
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* and we can access a hardware drawing on this manager.
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* @probe: this callback would be called by exynos drm driver after
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* subdrv is registered to it.
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* @remove: this callback is used to release resources created
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* by probe callback.
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* @open: this would be called with drm device file open.
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* @close: this would be called with drm device file close.
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* @encoder: encoder object owned by this sub driver.
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* @connector: connector object owned by this sub driver.
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*/
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struct exynos_drm_subdrv {
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struct list_head list;
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struct device *dev;
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struct drm_device *drm_dev;
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struct exynos_drm_manager *manager;
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int (*probe)(struct drm_device *drm_dev, struct device *dev);
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void (*remove)(struct drm_device *dev);
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int (*open)(struct drm_device *drm_dev, struct device *dev,
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struct drm_file *file);
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void (*close)(struct drm_device *drm_dev, struct device *dev,
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struct drm_file *file);
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struct drm_encoder *encoder;
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struct drm_connector *connector;
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};
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/*
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* this function calls a probe callback registered to sub driver list and
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* create its own encoder and connector and then set drm_device object
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* to global one.
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*/
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int exynos_drm_device_register(struct drm_device *dev);
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/*
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* this function calls a remove callback registered to sub driver list and
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* destroy its own encoder and connetor.
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*/
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int exynos_drm_device_unregister(struct drm_device *dev);
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/*
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* this function would be called by sub drivers such as display controller
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* or hdmi driver to register this sub driver object to exynos drm driver
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* and when a sub driver is registered to exynos drm driver a probe callback
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* of the sub driver is called and creates its own encoder and connector.
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*/
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int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
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/* this function removes subdrv list from exynos drm driver */
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int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
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int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
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void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
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extern struct platform_driver fimd_driver;
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extern struct platform_driver hdmi_driver;
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extern struct platform_driver mixer_driver;
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extern struct platform_driver exynos_drm_common_hdmi_driver;
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extern struct platform_driver vidi_driver;
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#endif
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