![Inki Dae](/assets/img/avatar_default.png)
some platform could be entering to sleep after short time once lcd panel off but before that vblank could be off by vblank off delay feature. at that time, vblank doesn't have the pair between vblank_get/put. so this path makes vblank off delay to have enough. Signed-off-by: Inki Dae <inki.dae@samsung.com>
269 lines
9.1 KiB
C
269 lines
9.1 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 2
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#define MAX_PLANE 5
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#define MAX_FB_BUFFER 3
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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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};
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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_timing: get timing 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_timing)(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_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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* @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_set)(struct device *subdrv_dev, void *mode);
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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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* @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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* @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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* @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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* @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 drm_device *drm_dev;
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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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struct exynos_drm_manager manager;
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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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* and then fb helper and drm mode group would be re-initialized.
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*/
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int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
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/*
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* this function removes subdrv list from exynos drm driver and fb helper
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* and drm mode group would be re-initialized.
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*/
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int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
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#endif
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