2 * Copyright (C) 2012 Google, Inc.
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #ifndef _EXYNOS_DRM_PANEL_H_
15 #define _EXYNOS_DRM_PANEL_H_
17 struct exynos_drm_overlay;
20 * Callbacks used to manipulate the panel (DP/HDMI/MIPI)
22 * @subdrv_probe: Used to associate drm_dev with panel context
23 * @is_connected: Returns true if the panel is connected
24 * @get_edid: Returns an edid with mode data from the panel
25 * @check_timing: Returns 0 if the given timing is valid for the panel
26 * @dpms: Sets the panel's power to mode and enables/disables video output
27 * @mode_fixup: Copies and optionally alters mode to adjusted_mode
28 * @mode_set: Sets the panel to output mode
29 * @get_max_res: Returns the maximum resolution in width/height
31 struct exynos_panel_ops {
32 int (*subdrv_probe)(void *ctx, struct drm_device *drm_dev);
33 bool (*is_connected)(void *ctx);
34 struct edid *(*get_edid)(void *ctx, struct drm_connector *connector);
35 int (*check_timing)(void *ctx, void *timing);
36 int (*dpms)(void *ctx, int mode);
37 void (*mode_fixup)(void *ctx, struct drm_connector *connector,
38 struct drm_display_mode *mode,
39 struct drm_display_mode *adjusted_mode);
40 void (*mode_set)(void *ctx, struct drm_display_mode *mode);
41 void (*get_max_res)(void *ctx, unsigned int *width,
42 unsigned int *height);
46 * Callbacks used to manipulate the controller (FIMD/Mixer)
48 * @subdrv_probe: Used to associate drm_dev with the controller context
49 * @get_panel: If we're not using edid, return the panel info
50 * @enable_vblank: Enable the controller's vblank interrupt and set pipe
51 * @disable_vblank: Disable the controller's vblank interrupt
52 * @dpms: Sets the controller's power to mode
53 * @mode_set: Sets the controller to output mode
54 * @commit: Applies controller level settings (as opposed to window level)
55 * @win_commit: Commits the changes on only one window
56 * @win_disable: Disables one of the controller's windows
58 struct exynos_controller_ops {
59 int (*subdrv_probe)(void *ctx, struct drm_device *drm_dev);
60 struct exynos_drm_panel_info *(*get_panel)(void *ctx);
61 int (*enable_vblank)(void *ctx, int pipe);
62 void (*disable_vblank)(void *ctx);
63 int (*dpms)(void *ctx, int mode);
64 void (*mode_set)(void *ctx, struct exynos_drm_overlay *overlay);
65 void (*commit)(void *ctx);
66 void (*win_commit)(void *ctx, int zpos);
67 void (*win_disable)(void *ctx, int zpos);
71 * The various bits we need to keep track of to manipulate the hardware from
72 * the connector/encoder/crtc drm callbacks.
74 * @display_type: The type of display, depends on which CONFIGs are enabled
75 * @subdrv: The exynos drm sub driver pointer
76 * @panel_ops: The panel callbacks to use
77 * @controller_ops: The controller callbacks to use
78 * @panel_ctx: The context pointer to pass to panel callbacks
79 * @controller_ctx: The context pointer to pass to controller callbacks
80 * @pipe: The current pipe number for this display
81 * @suspend_dpms: The dpms mode of the display before suspend
83 struct exynos_drm_display {
84 enum exynos_drm_display_type display_type;
85 struct exynos_drm_subdrv *subdrv;
86 struct exynos_panel_ops *panel_ops;
87 struct exynos_controller_ops *controller_ops;
94 const char *exynos_display_type_name(const struct exynos_drm_display *display);
97 * Used by the hardware drivers to attach panel and controller callbacks and
98 * contexts to a display.
100 void exynos_display_attach_panel(enum exynos_drm_display_type type,
101 struct exynos_panel_ops *ops, void *ctx);
102 void exynos_display_attach_controller(enum exynos_drm_display_type type,
103 struct exynos_controller_ops *ops, void *ctx);
105 /* Initializes the given display to type */
106 int exynos_display_init(struct exynos_drm_display *display,
107 enum exynos_drm_display_type type);
109 /* Cleans up the given display */
110 void exynos_display_remove(struct exynos_drm_display *display);