diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_drv.h')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.h | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h new file mode 100644 index 0000000..680a7c1 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -0,0 +1,352 @@ +/* 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 |