3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
15 #ifndef _EXYNOS_DRM_DRV_H_
16 #define _EXYNOS_DRM_DRV_H_
19 #include <linux/module.h>
23 #define MAX_FB_BUFFER 4
25 #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
26 #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
28 /* this enumerates display type. */
29 enum exynos_drm_output_type {
30 EXYNOS_DISPLAY_TYPE_NONE,
31 /* RGB or CPU Interface. */
32 EXYNOS_DISPLAY_TYPE_LCD,
34 EXYNOS_DISPLAY_TYPE_HDMI,
35 /* Virtual Display Interface. */
36 EXYNOS_DISPLAY_TYPE_VIDI,
40 * Exynos drm common overlay structure.
43 * @src_x: offset x on a framebuffer to be displayed.
44 * - the unit is screen coordinates.
45 * @src_y: offset y on a framebuffer to be displayed.
46 * - the unit is screen coordinates.
47 * @src_w: width of a partial image to be displayed from framebuffer.
48 * @src_h: height of a partial image to be displayed from framebuffer.
49 * @crtc_x: offset x on hardware screen.
50 * @crtc_y: offset y on hardware screen.
51 * @crtc_w: window width to be displayed (hardware screen).
52 * @crtc_h: window height to be displayed (hardware screen).
53 * @h_ratio: horizontal scaling ratio, 16.16 fixed point
54 * @v_ratio: vertical scaling ratio, 16.16 fixed point
55 * @dma_addr: array of bus(accessed by dma) address to the memory region
56 * allocated for a overlay.
57 * @zpos: order of overlay layer(z position).
59 * this structure is common to exynos SoC and its contents would be copied
60 * to hardware specific overlay info.
63 struct exynos_drm_plane {
64 struct drm_plane base;
75 dma_addr_t dma_addr[MAX_FB_BUFFER];
77 struct drm_framebuffer *pending_fb;
83 * @enable: enable the device
84 * @disable: disable the device
85 * @commit: set current hw specific display mode to hw.
86 * @enable_vblank: specific driver callback for enabling vblank interrupt.
87 * @disable_vblank: specific driver callback for disabling vblank interrupt.
88 * @wait_for_vblank: wait for vblank interrupt to make sure that
89 * hardware overlay is updated.
90 * @atomic_begin: prepare a window to receive a update
91 * @atomic_flush: mark the end of a window update
92 * @update_plane: apply hardware specific overlay data to registers.
93 * @disable_plane: disable hardware specific overlay.
94 * @te_handler: trigger to transfer video image at the tearing effect
95 * synchronization signal if there is a page flip request.
96 * @clock_enable: optional function enabling/disabling display domain clock,
97 * called from exynos-dp driver before powering up (with
98 * 'enable' argument as true) and after powering down (with
101 struct exynos_drm_crtc;
102 struct exynos_drm_crtc_ops {
103 void (*enable)(struct exynos_drm_crtc *crtc);
104 void (*disable)(struct exynos_drm_crtc *crtc);
105 void (*commit)(struct exynos_drm_crtc *crtc);
106 int (*enable_vblank)(struct exynos_drm_crtc *crtc);
107 void (*disable_vblank)(struct exynos_drm_crtc *crtc);
108 void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);
109 void (*atomic_begin)(struct exynos_drm_crtc *crtc,
110 struct exynos_drm_plane *plane);
111 void (*update_plane)(struct exynos_drm_crtc *crtc,
112 struct exynos_drm_plane *plane);
113 void (*disable_plane)(struct exynos_drm_crtc *crtc,
114 struct exynos_drm_plane *plane);
115 void (*atomic_flush)(struct exynos_drm_crtc *crtc,
116 struct exynos_drm_plane *plane);
117 void (*te_handler)(struct exynos_drm_crtc *crtc);
118 void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);
122 * Exynos specific crtc structure.
124 * @base: crtc object.
125 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
126 * @pipe: a crtc index created at load() with a new crtc object creation
127 * and the crtc object would be set to private->crtc array
128 * to get a crtc object corresponding to this pipe from private->crtc
129 * array when irq interrupt occurred. the reason of using this pipe is that
130 * drm framework doesn't support multiple irq yet.
131 * we can refer to the crtc to current hardware interrupt occurred through
133 * @enabled: if the crtc is enabled or not
134 * @event: vblank event that is currently queued for flip
135 * @wait_update: wait all pending planes updates to finish
136 * @pending_update: number of pending plane updates in this crtc
137 * @ops: pointer to callbacks for exynos drm specific functionality
138 * @ctx: A pointer to the crtc's implementation specific context
140 struct exynos_drm_crtc {
141 struct drm_crtc base;
142 enum exynos_drm_output_type type;
144 struct drm_pending_vblank_event *event;
145 wait_queue_head_t wait_update;
146 atomic_t pending_update;
147 const struct exynos_drm_crtc_ops *ops;
151 struct exynos_drm_g2d_private {
153 struct list_head inuse_cmdlist;
154 struct list_head event_list;
155 struct list_head userptr_list;
158 struct drm_exynos_file_private {
159 struct exynos_drm_g2d_private *g2d_priv;
160 struct device *ipp_dev;
164 * Exynos drm private structure.
166 * @da_start: start address to device address space.
167 * with iommu, device address space starts from this address
168 * otherwise default one.
169 * @da_space_size: size of device address space.
170 * if 0 then default value is used for it.
171 * @pipe: the pipe number for this crtc/manager.
172 * @pending: the crtcs that have pending updates to finish
173 * @lock: protect access to @pending
174 * @wait: wait an atomic commit to finish
176 struct exynos_drm_private {
177 struct drm_fb_helper *fb_helper;
180 * created crtc object would be contained at this array and
181 * this array is used to be aware of which crtc did it request vblank.
183 struct drm_crtc *crtc[MAX_CRTC];
184 struct drm_property *plane_zpos_property;
186 unsigned long da_start;
187 unsigned long da_space_size;
191 /* for atomic commit */
194 wait_queue_head_t wait;
198 * Exynos drm sub driver structure.
200 * @list: sub driver has its own list object to register to exynos drm driver.
201 * @dev: pointer to device object for subdrv device driver.
202 * @drm_dev: pointer to drm_device and this pointer would be set
203 * when sub driver calls exynos_drm_subdrv_register().
204 * @probe: this callback would be called by exynos drm driver after
205 * subdrv is registered to it.
206 * @remove: this callback is used to release resources created
208 * @open: this would be called with drm device file open.
209 * @close: this would be called with drm device file close.
211 struct exynos_drm_subdrv {
212 struct list_head list;
214 struct drm_device *drm_dev;
216 int (*probe)(struct drm_device *drm_dev, struct device *dev);
217 void (*remove)(struct drm_device *drm_dev, struct device *dev);
218 int (*open)(struct drm_device *drm_dev, struct device *dev,
219 struct drm_file *file);
220 void (*close)(struct drm_device *drm_dev, struct device *dev,
221 struct drm_file *file);
224 /* This function would be called by non kms drivers such as g2d and ipp. */
225 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
227 /* this function removes subdrv list from exynos drm driver */
228 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
230 int exynos_drm_device_subdrv_probe(struct drm_device *dev);
231 int exynos_drm_device_subdrv_remove(struct drm_device *dev);
232 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
233 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
235 #ifdef CONFIG_DRM_EXYNOS_DPI
236 struct drm_encoder *exynos_dpi_probe(struct device *dev);
237 int exynos_dpi_remove(struct drm_encoder *encoder);
238 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
240 static inline struct drm_encoder *
241 exynos_dpi_probe(struct device *dev) { return NULL; }
242 static inline int exynos_dpi_remove(struct drm_encoder *encoder)
246 static inline int exynos_dpi_bind(struct drm_device *dev,
247 struct drm_encoder *encoder)
253 int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
257 extern struct platform_driver fimd_driver;
258 extern struct platform_driver exynos5433_decon_driver;
259 extern struct platform_driver decon_driver;
260 extern struct platform_driver dp_driver;
261 extern struct platform_driver dsi_driver;
262 extern struct platform_driver mixer_driver;
263 extern struct platform_driver hdmi_driver;
264 extern struct platform_driver exynos_drm_common_hdmi_driver;
265 extern struct platform_driver vidi_driver;
266 extern struct platform_driver g2d_driver;
267 extern struct platform_driver fimc_driver;
268 extern struct platform_driver rotator_driver;
269 extern struct platform_driver gsc_driver;
270 extern struct platform_driver ipp_driver;
271 extern struct platform_driver mic_driver;