2 * Copyright (C) ROCKCHIP, Inc.
3 * Author:yzq<yzq@rock-chips.com>
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.
13 #ifndef _ROCKCHIP_DRM_DRV_H_
14 #define _ROCKCHIP_DRM_DRV_H_
16 #include <linux/module.h>
20 #define MAX_FB_BUFFER 4
21 #define DEFAULT_ZPOS -1
23 #define _wait_for(COND, MS) ({ \
24 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
27 if (time_after(jiffies, timeout__)) { \
35 #define wait_for(COND, MS) _wait_for(COND, MS)
38 struct rockchip_drm_overlay;
41 extern unsigned int drm_vblank_offdelay;
43 /* this enumerates display type. */
44 enum rockchip_drm_output_type {
45 ROCKCHIP_DISPLAY_TYPE_NONE,
46 /* RGB or CPU Interface. */
47 ROCKCHIP_DISPLAY_TYPE_LCD,
49 ROCKCHIP_DISPLAY_TYPE_HDMI,
50 /* Virtual Display Interface. */
51 ROCKCHIP_DISPLAY_TYPE_VIDI,
55 * Exynos drm overlay ops structure.
57 * @mode_set: copy drm overlay info to hw specific overlay info.
58 * @commit: apply hardware specific overlay data to registers.
59 * @enable: enable hardware specific overlay.
60 * @disable: disable hardware specific overlay.
62 struct rockchip_drm_overlay_ops {
63 void (*mode_set)(struct device *subdrv_dev,
64 struct rockchip_drm_overlay *overlay);
65 void (*commit)(struct device *subdrv_dev, int zpos);
66 void (*enable)(struct device *subdrv_dev, int zpos);
67 void (*disable)(struct device *subdrv_dev, int zpos);
71 * Exynos drm common overlay structure.
73 * @fb_x: offset x on a framebuffer to be displayed.
74 * - the unit is screen coordinates.
75 * @fb_y: offset y on a framebuffer to be displayed.
76 * - the unit is screen coordinates.
77 * @fb_width: width of a framebuffer.
78 * @fb_height: height of a framebuffer.
79 * @src_width: width of a partial image to be displayed from framebuffer.
80 * @src_height: height of a partial image to be displayed from framebuffer.
81 * @crtc_x: offset x on hardware screen.
82 * @crtc_y: offset y on hardware screen.
83 * @crtc_width: window width to be displayed (hardware screen).
84 * @crtc_height: window height to be displayed (hardware screen).
85 * @mode_width: width of screen mode.
86 * @mode_height: height of screen mode.
87 * @refresh: refresh rate.
88 * @scan_flag: interlace or progressive way.
89 * (it could be DRM_MODE_FLAG_*)
90 * @bpp: pixel size.(in bit)
91 * @pixel_format: fourcc pixel format of this overlay
92 * @dma_addr: array of bus(accessed by dma) address to the memory region
93 * allocated for a overlay.
94 * @zpos: order of overlay layer(z position).
95 * @default_win: a window to be enabled.
96 * @color_key: color key on or off.
97 * @index_color: if using color key feature then this value would be used
99 * @local_path: in case of lcd type, local path mode on or off.
100 * @transparency: transparency on or off.
101 * @activated: activated or not.
103 * this structure is common to rockchip SoC and its contents would be copied
104 * to hardware specific overlay info.
106 struct rockchip_drm_overlay {
109 unsigned int fb_width;
110 unsigned int fb_height;
111 unsigned int src_width;
112 unsigned int src_height;
115 unsigned int crtc_width;
116 unsigned int crtc_height;
117 unsigned int mode_width;
118 unsigned int mode_height;
119 unsigned int refresh;
120 unsigned int pixclock;
121 unsigned int scan_flag;
124 uint32_t pixel_format;
125 dma_addr_t dma_addr[MAX_FB_BUFFER];
130 unsigned int index_color;
137 * Exynos DRM Display Structure.
138 * - this structure is common to analog tv, digital tv and lcd panel.
140 * @type: one of ROCKCHIP_DISPLAY_TYPE_LCD and HDMI.
141 * @is_connected: check for that display is connected or not.
142 * @get_edid: get edid modes from display driver.
143 * @get_panel: get panel object from display driver.
144 * @check_timing: check if timing is valid or not.
145 * @power_on: display device on or off.
147 struct rockchip_drm_display_ops {
148 enum rockchip_drm_output_type type;
149 bool (*is_connected)(struct device *dev);
150 struct edid *(*get_edid)(struct device *dev,
151 struct drm_connector *connector);
152 void *(*get_panel)(struct device *dev);
153 void *(*get_modelist)(struct device *dev);
154 int (*check_timing)(struct device *dev, void *timing);
155 int (*power_on)(struct device *dev, int mode);
159 * Exynos drm manager ops
161 * @dpms: control device power.
162 * @apply: set timing, vblank and overlay data to registers.
163 * @mode_fixup: fix mode data comparing to hw specific display mode.
164 * @mode_set: convert drm_display_mode to hw specific display mode and
165 * would be called by encoder->mode_set().
166 * @get_max_resol: get maximum resolution to specific hardware.
167 * @commit: set current hw specific display mode to hw.
168 * @enable_vblank: specific driver callback for enabling vblank interrupt.
169 * @disable_vblank: specific driver callback for disabling vblank interrupt.
170 * @wait_for_vblank: wait for vblank interrupt to make sure that
171 * hardware overlay is updated.
173 struct rockchip_drm_manager_ops {
174 void (*dpms)(struct device *subdrv_dev, int mode);
175 void (*apply)(struct device *subdrv_dev);
176 void (*mode_fixup)(struct device *subdrv_dev,
177 struct drm_connector *connector,
178 const struct drm_display_mode *mode,
179 struct drm_display_mode *adjusted_mode);
180 void (*mode_set)(struct device *subdrv_dev, void *mode);
181 void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
182 unsigned int *height);
183 void (*commit)(struct device *subdrv_dev);
184 int (*enable_vblank)(struct device *subdrv_dev);
185 void (*disable_vblank)(struct device *subdrv_dev);
186 void (*wait_for_vblank)(struct device *subdrv_dev);
190 * Exynos drm common manager structure.
192 * @dev: pointer to device object for subdrv device driver.
193 * sub drivers such as display controller or hdmi driver,
194 * have their own device object.
195 * @ops: pointer to callbacks for rockchip drm specific framebuffer.
196 * these callbacks should be set by specific drivers such fimd
197 * or hdmi driver and are used to control hardware global registers.
198 * @overlay_ops: pointer to callbacks for rockchip drm specific framebuffer.
199 * these callbacks should be set by specific drivers such fimd
200 * or hdmi driver and are used to control hardware overlay reigsters.
201 * @display: pointer to callbacks for rockchip drm specific framebuffer.
202 * these callbacks should be set by specific drivers such fimd
203 * or hdmi driver and are used to control display devices such as
204 * analog tv, digital tv and lcd panel and also get timing data for them.
206 struct rockchip_drm_manager {
209 struct rockchip_drm_manager_ops *ops;
210 struct rockchip_drm_overlay_ops *overlay_ops;
211 struct rockchip_drm_display_ops *display_ops;
214 struct rockchip_drm_g2d_private {
216 struct list_head inuse_cmdlist;
217 struct list_head event_list;
218 struct list_head userptr_list;
221 struct rockchip_drm_ipp_private {
223 struct list_head event_list;
226 struct drm_rockchip_file_private {
227 struct rockchip_drm_g2d_private *g2d_priv;
228 struct rockchip_drm_ipp_private *ipp_priv;
232 * Exynos drm private structure.
234 * @da_start: start address to device address space.
235 * with iommu, device address space starts from this address
236 * otherwise default one.
237 * @da_space_size: size of device address space.
238 * if 0 then default value is used for it.
239 * @da_space_order: order to device address space.
241 struct rockchip_drm_private {
242 struct drm_fb_helper *fb_helper;
244 /* list head for new event to be added. */
245 struct list_head pageflip_event_list;
248 * created crtc object would be contained at this array and
249 * this array is used to be aware of which crtc did it request vblank.
251 struct drm_crtc *crtc[MAX_CRTC];
252 struct drm_property *plane_zpos_property;
253 struct drm_property *crtc_mode_property;
255 unsigned long da_start;
256 unsigned long da_space_size;
257 unsigned long da_space_order;
261 * Exynos drm sub driver structure.
263 * @list: sub driver has its own list object to register to rockchip 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 rockchip_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 rockchip 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 rockchip_drm_subdrv {
279 struct list_head list;
281 struct drm_device *drm_dev;
282 struct rockchip_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 rockchip_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 rockchip_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 rockchip drm driver
310 * and when a sub driver is registered to rockchip drm driver a probe callback
311 * of the sub driver is called and creates its own encoder and connector.
313 int rockchip_drm_subdrv_register(struct rockchip_drm_subdrv *drm_subdrv);
315 /* this function removes subdrv list from rockchip drm driver */
316 int rockchip_drm_subdrv_unregister(struct rockchip_drm_subdrv *drm_subdrv);
318 int rockchip_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
319 void rockchip_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
322 * this function registers rockchip drm hdmi platform device. It ensures only one
323 * instance of the device is created.
325 int rockchip_platform_device_hdmi_register(void);
328 * this function unregisters rockchip drm hdmi platform device if it exists.
330 void rockchip_platform_device_hdmi_unregister(void);
333 * this function registers rockchip drm ipp platform device.
335 int rockchip_platform_device_ipp_register(void);
338 * this function unregisters rockchip drm ipp platform device if it exists.
340 void rockchip_platform_device_ipp_unregister(void);
342 extern struct platform_driver primary_platform_driver;
343 extern struct platform_driver extend_platform_driver;
344 extern struct platform_driver hdmi_driver;
345 extern struct platform_driver mixer_driver;
346 extern struct platform_driver rockchip_drm_common_hdmi_driver;
347 extern struct platform_driver vidi_driver;
348 extern struct platform_driver g2d_driver;
349 extern struct platform_driver fimc_driver;
350 extern struct platform_driver rotator_driver;
351 extern struct platform_driver gsc_driver;
352 extern struct platform_driver ipp_driver;