3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
29 #ifndef _EXYNOS_DRM_DRV_H_
30 #define _EXYNOS_DRM_DRV_H_
32 #include <linux/module.h>
36 #define MAX_FB_BUFFER 4
37 #define DEFAULT_ZPOS -1
39 #define _wait_for(COND, MS) ({ \
40 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
43 if (time_after(jiffies, timeout__)) { \
51 #define wait_for(COND, MS) _wait_for(COND, MS)
54 struct exynos_drm_overlay;
57 extern unsigned int drm_vblank_offdelay;
59 /* this enumerates display type. */
60 enum exynos_drm_output_type {
61 EXYNOS_DISPLAY_TYPE_NONE,
62 /* RGB or CPU Interface. */
63 EXYNOS_DISPLAY_TYPE_LCD,
65 EXYNOS_DISPLAY_TYPE_HDMI,
66 /* Virtual Display Interface. */
67 EXYNOS_DISPLAY_TYPE_VIDI,
71 * Exynos drm overlay ops structure.
73 * @mode_set: copy drm overlay info to hw specific overlay info.
74 * @commit: apply hardware specific overlay data to registers.
75 * @enable: enable hardware specific overlay.
76 * @disable: disable hardware specific overlay.
77 * @wait_for_vblank: wait for vblank interrupt to make sure that
78 * hardware overlay is disabled.
80 struct exynos_drm_overlay_ops {
81 void (*mode_set)(struct device *subdrv_dev,
82 struct exynos_drm_overlay *overlay);
83 void (*commit)(struct device *subdrv_dev, int zpos);
84 void (*enable)(struct device *subdrv_dev, int zpos);
85 void (*disable)(struct device *subdrv_dev, int zpos);
86 void (*wait_for_vblank)(struct device *subdrv_dev);
90 * Exynos drm common overlay structure.
92 * @fb_x: offset x on a framebuffer to be displayed.
93 * - the unit is screen coordinates.
94 * @fb_y: offset y on a framebuffer to be displayed.
95 * - the unit is screen coordinates.
96 * @fb_width: width of a framebuffer.
97 * @fb_height: height of a framebuffer.
98 * @src_width: width of a partial image to be displayed from framebuffer.
99 * @src_height: height of a partial image to be displayed from framebuffer.
100 * @crtc_x: offset x on hardware screen.
101 * @crtc_y: offset y on hardware screen.
102 * @crtc_width: window width to be displayed (hardware screen).
103 * @crtc_height: window height to be displayed (hardware screen).
104 * @mode_width: width of screen mode.
105 * @mode_height: height of screen mode.
106 * @refresh: refresh rate.
107 * @scan_flag: interlace or progressive way.
108 * (it could be DRM_MODE_FLAG_*)
109 * @bpp: pixel size.(in bit)
110 * @pixel_format: fourcc pixel format of this overlay
111 * @dma_addr: array of bus(accessed by dma) address to the memory region
112 * allocated for a overlay.
113 * @vaddr: array of virtual memory addresss to this overlay.
114 * @zpos: order of overlay layer(z position).
115 * @default_win: a window to be enabled.
116 * @color_key: color key on or off.
117 * @index_color: if using color key feature then this value would be used
119 * @local_path: in case of lcd type, local path mode on or off.
120 * @transparency: transparency on or off.
121 * @activated: activated or not.
123 * this structure is common to exynos SoC and its contents would be copied
124 * to hardware specific overlay info.
126 struct exynos_drm_overlay {
129 unsigned int fb_width;
130 unsigned int fb_height;
131 unsigned int src_width;
132 unsigned int src_height;
135 unsigned int crtc_width;
136 unsigned int crtc_height;
137 unsigned int mode_width;
138 unsigned int mode_height;
139 unsigned int refresh;
140 unsigned int scan_flag;
143 uint32_t pixel_format;
144 dma_addr_t dma_addr[MAX_FB_BUFFER];
145 void __iomem *vaddr[MAX_FB_BUFFER];
150 unsigned int index_color;
157 * Exynos DRM Display Structure.
158 * - this structure is common to analog tv, digital tv and lcd panel.
160 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
161 * @is_connected: check for that display is connected or not.
162 * @get_edid: get edid modes from display driver.
163 * @get_panel: get panel object from display driver.
164 * @check_timing: check if timing is valid or not.
165 * @power_on: display device on or off.
167 struct exynos_drm_display_ops {
168 enum exynos_drm_output_type type;
169 bool (*is_connected)(struct device *dev);
170 int (*get_edid)(struct device *dev, struct drm_connector *connector,
172 void *(*get_panel)(struct device *dev);
173 int (*check_timing)(struct device *dev, void *timing);
174 int (*power_on)(struct device *dev, int mode);
178 * Exynos drm manager ops
180 * @dpms: control device power.
181 * @apply: set timing, vblank and overlay data to registers.
182 * @mode_fixup: fix mode data comparing to hw specific display mode.
183 * @mode_set: convert drm_display_mode to hw specific display mode and
184 * would be called by encoder->mode_set().
185 * @get_max_resol: get maximum resolution to specific hardware.
186 * @commit: set current hw specific display mode to hw.
187 * @enable_vblank: specific driver callback for enabling vblank interrupt.
188 * @disable_vblank: specific driver callback for disabling vblank interrupt.
190 struct exynos_drm_manager_ops {
191 void (*dpms)(struct device *subdrv_dev, int mode);
192 void (*apply)(struct device *subdrv_dev);
193 void (*mode_fixup)(struct device *subdrv_dev,
194 struct drm_connector *connector,
195 const struct drm_display_mode *mode,
196 struct drm_display_mode *adjusted_mode);
197 void (*mode_set)(struct device *subdrv_dev, void *mode);
198 void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
199 unsigned int *height);
200 void (*commit)(struct device *subdrv_dev);
201 int (*enable_vblank)(struct device *subdrv_dev);
202 void (*disable_vblank)(struct device *subdrv_dev);
206 * Exynos drm common manager structure.
208 * @dev: pointer to device object for subdrv device driver.
209 * sub drivers such as display controller or hdmi driver,
210 * have their own device object.
211 * @ops: pointer to callbacks for exynos drm specific framebuffer.
212 * these callbacks should be set by specific drivers such fimd
213 * or hdmi driver and are used to control hardware global registers.
214 * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer.
215 * these callbacks should be set by specific drivers such fimd
216 * or hdmi driver and are used to control hardware overlay reigsters.
217 * @display: pointer to callbacks for exynos drm specific framebuffer.
218 * these callbacks should be set by specific drivers such fimd
219 * or hdmi driver and are used to control display devices such as
220 * analog tv, digital tv and lcd panel and also get timing data for them.
222 struct exynos_drm_manager {
225 struct exynos_drm_manager_ops *ops;
226 struct exynos_drm_overlay_ops *overlay_ops;
227 struct exynos_drm_display_ops *display_ops;
230 struct exynos_drm_g2d_private {
232 struct list_head inuse_cmdlist;
233 struct list_head event_list;
234 struct list_head gem_list;
238 struct drm_exynos_file_private {
239 struct exynos_drm_g2d_private *g2d_priv;
243 * Exynos drm private structure.
245 struct exynos_drm_private {
246 struct drm_fb_helper *fb_helper;
248 /* list head for new event to be added. */
249 struct list_head pageflip_event_list;
252 * created crtc object would be contained at this array and
253 * this array is used to be aware of which crtc did it request vblank.
255 struct drm_crtc *crtc[MAX_CRTC];
256 struct drm_property *plane_zpos_property;
257 struct drm_property *crtc_mode_property;
261 * Exynos drm sub driver structure.
263 * @list: sub driver has its own list object to register to exynos drm driver.
264 * @dev: pointer to device object for subdrv device driver.
265 * @drm_dev: pointer to drm_device and this pointer would be set
266 * when sub driver calls exynos_drm_subdrv_register().
267 * @manager: subdrv has its own manager to control a hardware appropriately
268 * and we can access a hardware drawing on this manager.
269 * @probe: this callback would be called by exynos drm driver after
270 * subdrv is registered to it.
271 * @remove: this callback is used to release resources created
273 * @open: this would be called with drm device file open.
274 * @close: this would be called with drm device file close.
275 * @encoder: encoder object owned by this sub driver.
276 * @connector: connector object owned by this sub driver.
278 struct exynos_drm_subdrv {
279 struct list_head list;
281 struct drm_device *drm_dev;
282 struct exynos_drm_manager *manager;
284 int (*probe)(struct drm_device *drm_dev, struct device *dev);
285 void (*remove)(struct drm_device *drm_dev, struct device *dev);
286 int (*open)(struct drm_device *drm_dev, struct device *dev,
287 struct drm_file *file);
288 void (*close)(struct drm_device *drm_dev, struct device *dev,
289 struct drm_file *file);
291 struct drm_encoder *encoder;
292 struct drm_connector *connector;
296 * this function calls a probe callback registered to sub driver list and
297 * create its own encoder and connector and then set drm_device object
300 int exynos_drm_device_register(struct drm_device *dev);
302 * this function calls a remove callback registered to sub driver list and
303 * destroy its own encoder and connetor.
305 int exynos_drm_device_unregister(struct drm_device *dev);
308 * this function would be called by sub drivers such as display controller
309 * or hdmi driver to register this sub driver object to exynos drm driver
310 * and when a sub driver is registered to exynos drm driver a probe callback
311 * of the sub driver is called and creates its own encoder and connector.
313 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
315 /* this function removes subdrv list from exynos drm driver */
316 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
318 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
319 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
321 extern struct platform_driver fimd_driver;
322 extern struct platform_driver hdmi_driver;
323 extern struct platform_driver mixer_driver;
324 extern struct platform_driver exynos_drm_common_hdmi_driver;
325 extern struct platform_driver vidi_driver;
326 extern struct platform_driver g2d_driver;