2 * Copyright (C) ROCKCHIP, Inc.
3 * Author:yzq<yzq@rock-chips.com>
5 * based on exynos_drm_drv.h
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 #ifndef _ROCKCHIP_DRM_DRV_H_
17 #define _ROCKCHIP_DRM_DRV_H_
19 #include <linux/module.h>
23 #define MAX_FB_BUFFER 4
24 #define DEFAULT_ZPOS -1
26 #define _wait_for(COND, MS) ({ \
27 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
30 if (time_after(jiffies, timeout__)) { \
38 #define wait_for(COND, MS) _wait_for(COND, MS)
41 struct rockchip_drm_overlay;
44 extern unsigned int drm_vblank_offdelay;
46 /* this enumerates display type. */
47 enum rockchip_drm_output_type {
48 ROCKCHIP_DISPLAY_TYPE_NONE,
49 /* RGB or CPU Interface. */
50 ROCKCHIP_DISPLAY_TYPE_LCD,
52 ROCKCHIP_DISPLAY_TYPE_HDMI,
53 /* Virtual Display Interface. */
54 ROCKCHIP_DISPLAY_TYPE_VIDI,
58 * Exynos drm overlay ops structure.
60 * @mode_set: copy drm overlay info to hw specific overlay info.
61 * @commit: apply hardware specific overlay data to registers.
62 * @enable: enable hardware specific overlay.
63 * @disable: disable hardware specific overlay.
65 struct rockchip_drm_overlay_ops {
66 void (*mode_set)(struct device *subdrv_dev,
67 struct rockchip_drm_overlay *overlay);
68 void (*commit)(struct device *subdrv_dev, int zpos);
69 void (*enable)(struct device *subdrv_dev, int zpos);
70 void (*disable)(struct device *subdrv_dev, int zpos);
74 * Exynos drm common overlay structure.
76 * @fb_x: offset x on a framebuffer to be displayed.
77 * - the unit is screen coordinates.
78 * @fb_y: offset y on a framebuffer to be displayed.
79 * - the unit is screen coordinates.
80 * @fb_width: width of a framebuffer.
81 * @fb_height: height of a framebuffer.
82 * @src_width: width of a partial image to be displayed from framebuffer.
83 * @src_height: height of a partial image to be displayed from framebuffer.
84 * @crtc_x: offset x on hardware screen.
85 * @crtc_y: offset y on hardware screen.
86 * @crtc_width: window width to be displayed (hardware screen).
87 * @crtc_height: window height to be displayed (hardware screen).
88 * @mode_width: width of screen mode.
89 * @mode_height: height of screen mode.
90 * @refresh: refresh rate.
91 * @scan_flag: interlace or progressive way.
92 * (it could be DRM_MODE_FLAG_*)
93 * @bpp: pixel size.(in bit)
94 * @pixel_format: fourcc pixel format of this overlay
95 * @dma_addr: array of bus(accessed by dma) address to the memory region
96 * allocated for a overlay.
97 * @zpos: order of overlay layer(z position).
98 * @default_win: a window to be enabled.
99 * @color_key: color key on or off.
100 * @index_color: if using color key feature then this value would be used
102 * @local_path: in case of lcd type, local path mode on or off.
103 * @transparency: transparency on or off.
104 * @activated: activated or not.
106 * this structure is common to rockchip SoC and its contents would be copied
107 * to hardware specific overlay info.
109 struct rockchip_drm_overlay {
112 unsigned int fb_width;
113 unsigned int fb_height;
114 unsigned int src_width;
115 unsigned int src_height;
118 unsigned int crtc_width;
119 unsigned int crtc_height;
120 unsigned int mode_width;
121 unsigned int mode_height;
122 unsigned int refresh;
123 unsigned int pixclock;
124 unsigned int scan_flag;
127 uint32_t pixel_format;
128 dma_addr_t dma_addr[MAX_FB_BUFFER];
133 unsigned int index_color;
140 * Exynos DRM Display Structure.
141 * - this structure is common to analog tv, digital tv and lcd panel.
143 * @type: one of ROCKCHIP_DISPLAY_TYPE_LCD and HDMI.
144 * @is_connected: check for that display is connected or not.
145 * @get_edid: get edid modes from display driver.
146 * @get_panel: get panel object from display driver.
147 * @check_timing: check if timing is valid or not.
148 * @power_on: display device on or off.
150 struct rockchip_drm_display_ops {
151 enum rockchip_drm_output_type type;
152 bool (*is_connected)(struct device *dev);
153 struct edid *(*get_edid)(struct device *dev,
154 struct drm_connector *connector);
155 void *(*get_panel)(struct device *dev);
156 void *(*get_modelist)(struct device *dev);
157 int (*check_timing)(struct device *dev, void *timing);
158 int (*power_on)(struct device *dev, int mode);
162 * Exynos drm manager ops
164 * @dpms: control device power.
165 * @apply: set timing, vblank and overlay data to registers.
166 * @mode_fixup: fix mode data comparing to hw specific display mode.
167 * @mode_set: convert drm_display_mode to hw specific display mode and
168 * would be called by encoder->mode_set().
169 * @get_max_resol: get maximum resolution to specific hardware.
170 * @commit: set current hw specific display mode to hw.
171 * @enable_vblank: specific driver callback for enabling vblank interrupt.
172 * @disable_vblank: specific driver callback for disabling vblank interrupt.
173 * @wait_for_vblank: wait for vblank interrupt to make sure that
174 * hardware overlay is updated.
176 struct rockchip_drm_manager_ops {
177 void (*dpms)(struct device *subdrv_dev, int mode);
178 void (*apply)(struct device *subdrv_dev);
179 void (*mode_fixup)(struct device *subdrv_dev,
180 struct drm_connector *connector,
181 const struct drm_display_mode *mode,
182 struct drm_display_mode *adjusted_mode);
183 void (*mode_set)(struct device *subdrv_dev, void *mode);
184 void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
185 unsigned int *height);
186 void (*commit)(struct device *subdrv_dev);
187 int (*enable_vblank)(struct device *subdrv_dev);
188 void (*disable_vblank)(struct device *subdrv_dev);
189 void (*wait_for_vblank)(struct device *subdrv_dev);
193 * Exynos drm common manager structure.
195 * @dev: pointer to device object for subdrv device driver.
196 * sub drivers such as display controller or hdmi driver,
197 * have their own device object.
198 * @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 global registers.
201 * @overlay_ops: 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 hardware overlay reigsters.
204 * @display: pointer to callbacks for rockchip drm specific framebuffer.
205 * these callbacks should be set by specific drivers such fimd
206 * or hdmi driver and are used to control display devices such as
207 * analog tv, digital tv and lcd panel and also get timing data for them.
209 struct rockchip_drm_manager {
212 struct rockchip_drm_manager_ops *ops;
213 struct rockchip_drm_overlay_ops *overlay_ops;
214 struct rockchip_drm_display_ops *display_ops;
217 struct rockchip_drm_g2d_private {
219 struct list_head inuse_cmdlist;
220 struct list_head event_list;
221 struct list_head userptr_list;
224 struct rockchip_drm_ipp_private {
226 struct list_head event_list;
229 struct drm_rockchip_file_private {
230 struct rockchip_drm_g2d_private *g2d_priv;
231 struct rockchip_drm_ipp_private *ipp_priv;
235 * Exynos drm private structure.
237 * @da_start: start address to device address space.
238 * with iommu, device address space starts from this address
239 * otherwise default one.
240 * @da_space_size: size of device address space.
241 * if 0 then default value is used for it.
242 * @da_space_order: order to device address space.
244 struct rockchip_drm_private {
245 struct drm_fb_helper *fb_helper;
247 /* list head for new event to be added. */
248 struct list_head pageflip_event_list;
251 * created crtc object would be contained at this array and
252 * this array is used to be aware of which crtc did it request vblank.
254 struct drm_crtc *crtc[MAX_CRTC];
255 struct drm_property *plane_zpos_property;
256 struct drm_property *crtc_mode_property;
258 unsigned long da_start;
259 unsigned long da_space_size;
260 unsigned long da_space_order;
264 * Exynos drm sub driver structure.
266 * @list: sub driver has its own list object to register to rockchip drm driver.
267 * @dev: pointer to device object for subdrv device driver.
268 * @drm_dev: pointer to drm_device and this pointer would be set
269 * when sub driver calls rockchip_drm_subdrv_register().
270 * @manager: subdrv has its own manager to control a hardware appropriately
271 * and we can access a hardware drawing on this manager.
272 * @probe: this callback would be called by rockchip drm driver after
273 * subdrv is registered to it.
274 * @remove: this callback is used to release resources created
276 * @open: this would be called with drm device file open.
277 * @close: this would be called with drm device file close.
278 * @encoder: encoder object owned by this sub driver.
279 * @connector: connector object owned by this sub driver.
281 struct rockchip_drm_subdrv {
282 struct list_head list;
284 struct drm_device *drm_dev;
285 struct rockchip_drm_manager *manager;
287 int (*probe)(struct drm_device *drm_dev, struct device *dev);
288 void (*remove)(struct drm_device *drm_dev, struct device *dev);
289 int (*open)(struct drm_device *drm_dev, struct device *dev,
290 struct drm_file *file);
291 void (*close)(struct drm_device *drm_dev, struct device *dev,
292 struct drm_file *file);
294 struct drm_encoder *encoder;
295 struct drm_connector *connector;
299 * this function calls a probe callback registered to sub driver list and
300 * create its own encoder and connector and then set drm_device object
303 int rockchip_drm_device_register(struct drm_device *dev);
305 * this function calls a remove callback registered to sub driver list and
306 * destroy its own encoder and connetor.
308 int rockchip_drm_device_unregister(struct drm_device *dev);
311 * this function would be called by sub drivers such as display controller
312 * or hdmi driver to register this sub driver object to rockchip drm driver
313 * and when a sub driver is registered to rockchip drm driver a probe callback
314 * of the sub driver is called and creates its own encoder and connector.
316 int rockchip_drm_subdrv_register(struct rockchip_drm_subdrv *drm_subdrv);
318 /* this function removes subdrv list from rockchip drm driver */
319 int rockchip_drm_subdrv_unregister(struct rockchip_drm_subdrv *drm_subdrv);
321 int rockchip_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
322 void rockchip_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
325 * this function registers rockchip drm hdmi platform device. It ensures only one
326 * instance of the device is created.
328 int rockchip_platform_device_hdmi_register(void);
331 * this function unregisters rockchip drm hdmi platform device if it exists.
333 void rockchip_platform_device_hdmi_unregister(void);
336 * this function registers rockchip drm ipp platform device.
338 int rockchip_platform_device_ipp_register(void);
341 * this function unregisters rockchip drm ipp platform device if it exists.
343 void rockchip_platform_device_ipp_unregister(void);
345 extern struct platform_driver primary_platform_driver;
346 extern struct platform_driver extend_platform_driver;
347 extern struct platform_driver hdmi_driver;
348 extern struct platform_driver mixer_driver;
349 extern struct platform_driver rockchip_drm_common_hdmi_driver;
350 extern struct platform_driver vidi_driver;
351 extern struct platform_driver g2d_driver;
352 extern struct platform_driver fimc_driver;
353 extern struct platform_driver rotator_driver;
354 extern struct platform_driver gsc_driver;
355 extern struct platform_driver ipp_driver;