/* 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.
*/
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);
/*
* this function registers exynos drm ipp platform device.
*/
int exynos_platform_device_ipp_register(void);
/*
* this function unregisters exynos drm ipp platform device if it exists.
*/
void exynos_platform_device_ipp_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