384 lines
12 KiB
C
384 lines
12 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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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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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#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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#define _wait_for(COND, MS) ({ \
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unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
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int ret__ = 0; \
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while (!(COND)) { \
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if (time_after(jiffies, timeout__)) { \
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ret__ = -ETIMEDOUT; \
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break; \
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} \
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} \
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ret__; \
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})
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#define wait_for(COND, MS) _wait_for(COND, MS)
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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 device type. */
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enum exynos_drm_device_type {
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EXYNOS_DEVICE_TYPE_NONE,
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EXYNOS_DEVICE_TYPE_CRTC,
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EXYNOS_DEVICE_TYPE_CONNECTOR,
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};
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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 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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* @src_width: width of a partial image to be displayed from framebuffer.
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* @src_height: height of a partial image to be displayed from 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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* @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 src_width;
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unsigned int src_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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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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* @remove: cleans up the display for removal
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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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* @check_mode: check if mode is valid or not.
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* @dpms: display device on or off.
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* @commit: apply changes to hw
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*/
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struct exynos_drm_display;
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struct exynos_drm_display_ops {
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int (*create_connector)(struct exynos_drm_display *display,
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struct drm_encoder *encoder);
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void (*remove)(struct exynos_drm_display *display);
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void (*mode_fixup)(struct exynos_drm_display *display,
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struct drm_connector *connector,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(struct exynos_drm_display *display,
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struct drm_display_mode *mode);
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int (*check_mode)(struct exynos_drm_display *display,
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struct drm_display_mode *mode);
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void (*dpms)(struct exynos_drm_display *display, int mode);
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void (*commit)(struct exynos_drm_display *display);
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};
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/*
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* Exynos drm display structure, maps 1:1 with an encoder/connector
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*
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* @list: the list entry for this manager
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* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
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* @encoder: encoder object this display maps to
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* @connector: connector object this display maps to
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* @ops: pointer to callbacks for exynos drm specific functionality
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* @ctx: A pointer to the display's implementation specific context
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*/
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struct exynos_drm_display {
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struct list_head list;
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enum exynos_drm_output_type type;
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struct drm_encoder *encoder;
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struct drm_connector *connector;
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struct exynos_drm_display_ops *ops;
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void *ctx;
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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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* @mode_fixup: fix mode data before applying it
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* @mode_set: set the given mode to the manager
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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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* @wait_for_vblank: wait for vblank interrupt to make sure that
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* hardware overlay is updated.
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* @win_mode_set: copy drm overlay info to hw specific overlay info.
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* @win_commit: apply hardware specific overlay data to registers.
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* @win_enable: enable hardware specific overlay.
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* @win_disable: disable hardware specific overlay.
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*/
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struct exynos_drm_manager;
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struct exynos_drm_manager_ops {
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void (*dpms)(struct exynos_drm_manager *mgr, int mode);
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bool (*mode_fixup)(struct exynos_drm_manager *mgr,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(struct exynos_drm_manager *mgr,
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const struct drm_display_mode *mode);
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void (*commit)(struct exynos_drm_manager *mgr);
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int (*enable_vblank)(struct exynos_drm_manager *mgr);
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void (*disable_vblank)(struct exynos_drm_manager *mgr);
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void (*wait_for_vblank)(struct exynos_drm_manager *mgr);
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void (*win_mode_set)(struct exynos_drm_manager *mgr,
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struct exynos_drm_overlay *overlay);
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void (*win_commit)(struct exynos_drm_manager *mgr, int zpos);
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void (*win_enable)(struct exynos_drm_manager *mgr, int zpos);
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void (*win_disable)(struct exynos_drm_manager *mgr, int zpos);
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};
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/*
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* Exynos drm common manager structure, maps 1:1 with a crtc
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*
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* @list: the list entry for this manager
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* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
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* @drm_dev: pointer to the drm device
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* @crtc: crtc object.
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* @pipe: the pipe number for this crtc/manager
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* @ops: pointer to callbacks for exynos drm specific functionality
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* @ctx: A pointer to the manager's implementation specific context
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*/
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struct exynos_drm_manager {
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struct list_head list;
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enum exynos_drm_output_type type;
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struct drm_device *drm_dev;
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struct drm_crtc *crtc;
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int pipe;
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struct exynos_drm_manager_ops *ops;
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void *ctx;
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};
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struct exynos_drm_g2d_private {
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struct device *dev;
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struct list_head inuse_cmdlist;
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struct list_head event_list;
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struct list_head userptr_list;
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};
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struct exynos_drm_ipp_private {
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struct device *dev;
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struct list_head event_list;
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};
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struct drm_exynos_file_private {
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struct exynos_drm_g2d_private *g2d_priv;
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struct exynos_drm_ipp_private *ipp_priv;
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struct file *anon_filp;
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};
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/*
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* Exynos drm private structure.
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*
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* @da_start: start address to device address space.
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* with iommu, device address space starts from this address
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* otherwise default one.
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* @da_space_size: size of device address space.
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* if 0 then default value is used for it.
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* @pipe: the pipe number for this crtc/manager.
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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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struct drm_property *plane_zpos_property;
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struct drm_property *crtc_mode_property;
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unsigned long da_start;
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unsigned long da_space_size;
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unsigned int pipe;
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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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*/
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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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int (*probe)(struct drm_device *drm_dev, struct device *dev);
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void (*remove)(struct drm_device *drm_dev, struct 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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};
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/* This function would be called by non kms drivers such as g2d and ipp. */
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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_device_subdrv_probe(struct drm_device *dev);
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int exynos_drm_device_subdrv_remove(struct drm_device *dev);
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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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/*
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* this function registers exynos drm hdmi platform device. It ensures only one
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* instance of the device is created.
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*/
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int exynos_platform_device_hdmi_register(void);
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/*
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* this function unregisters exynos drm hdmi platform device if it exists.
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*/
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void exynos_platform_device_hdmi_unregister(void);
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/*
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* this function registers exynos drm ipp platform device.
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*/
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int exynos_platform_device_ipp_register(void);
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/*
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* this function unregisters exynos drm ipp platform device if it exists.
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*/
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void exynos_platform_device_ipp_unregister(void);
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#ifdef CONFIG_DRM_EXYNOS_DPI
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struct exynos_drm_display * exynos_dpi_probe(struct device *dev);
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int exynos_dpi_remove(struct device *dev);
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#else
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static inline struct exynos_drm_display *
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exynos_dpi_probe(struct device *dev) { return NULL; }
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static inline int exynos_dpi_remove(struct device *dev) { return 0; }
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#endif
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/*
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* this function registers exynos drm vidi platform device/driver.
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*/
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int exynos_drm_probe_vidi(void);
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/*
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* this function unregister exynos drm vidi platform device/driver.
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*/
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void exynos_drm_remove_vidi(void);
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/* This function creates a encoder and a connector, and initializes them. */
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int exynos_drm_create_enc_conn(struct drm_device *dev,
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struct exynos_drm_display *display);
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int exynos_drm_component_add(struct device *dev,
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enum exynos_drm_device_type dev_type,
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enum exynos_drm_output_type out_type);
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void exynos_drm_component_del(struct device *dev,
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enum exynos_drm_device_type dev_type);
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extern struct platform_driver fimd_driver;
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extern struct platform_driver dp_driver;
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extern struct platform_driver dsi_driver;
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extern struct platform_driver mixer_driver;
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extern struct platform_driver hdmi_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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extern struct platform_driver g2d_driver;
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extern struct platform_driver fimc_driver;
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extern struct platform_driver rotator_driver;
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extern struct platform_driver gsc_driver;
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extern struct platform_driver ipp_driver;
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#endif
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