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 * 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_
18 #include <linux/module.h>
22 #define MAX_FB_BUFFER 4
23 #define DEFAULT_ZPOS -1
25 #define _wait_for(COND, MS) ({ \
26 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
29 if (time_after(jiffies, timeout__)) { \
37 #define wait_for(COND, MS) _wait_for(COND, MS)
40 struct exynos_drm_overlay
;
43 extern unsigned int drm_vblank_offdelay
;
45 /* this enumerates display type. */
46 enum exynos_drm_output_type
{
47 EXYNOS_DISPLAY_TYPE_NONE
,
48 /* RGB or CPU Interface. */
49 EXYNOS_DISPLAY_TYPE_LCD
,
51 EXYNOS_DISPLAY_TYPE_HDMI
,
52 /* Virtual Display Interface. */
53 EXYNOS_DISPLAY_TYPE_VIDI
,
57 * Exynos drm common overlay structure.
59 * @fb_x: offset x on a framebuffer to be displayed.
60 * - the unit is screen coordinates.
61 * @fb_y: offset y on a framebuffer to be displayed.
62 * - the unit is screen coordinates.
63 * @fb_width: width of a framebuffer.
64 * @fb_height: height of a framebuffer.
65 * @src_width: width of a partial image to be displayed from framebuffer.
66 * @src_height: height of a partial image to be displayed from framebuffer.
67 * @crtc_x: offset x on hardware screen.
68 * @crtc_y: offset y on hardware screen.
69 * @crtc_width: window width to be displayed (hardware screen).
70 * @crtc_height: window height to be displayed (hardware screen).
71 * @mode_width: width of screen mode.
72 * @mode_height: height of screen mode.
73 * @refresh: refresh rate.
74 * @scan_flag: interlace or progressive way.
75 * (it could be DRM_MODE_FLAG_*)
76 * @bpp: pixel size.(in bit)
77 * @pixel_format: fourcc pixel format of this overlay
78 * @dma_addr: array of bus(accessed by dma) address to the memory region
79 * allocated for a overlay.
80 * @zpos: order of overlay layer(z position).
81 * @default_win: a window to be enabled.
82 * @color_key: color key on or off.
83 * @index_color: if using color key feature then this value would be used
85 * @local_path: in case of lcd type, local path mode on or off.
86 * @transparency: transparency on or off.
87 * @activated: activated or not.
89 * this structure is common to exynos SoC and its contents would be copied
90 * to hardware specific overlay info.
92 struct exynos_drm_overlay
{
95 unsigned int fb_width
;
96 unsigned int fb_height
;
97 unsigned int src_width
;
98 unsigned int src_height
;
101 unsigned int crtc_width
;
102 unsigned int crtc_height
;
103 unsigned int mode_width
;
104 unsigned int mode_height
;
105 unsigned int refresh
;
106 unsigned int scan_flag
;
109 uint32_t pixel_format
;
110 dma_addr_t dma_addr
[MAX_FB_BUFFER
];
115 unsigned int index_color
;
122 * Exynos DRM Display Structure.
123 * - this structure is common to analog tv, digital tv and lcd panel.
125 * @remove: cleans up the display for removal
126 * @mode_fixup: fix mode data comparing to hw specific display mode.
127 * @mode_set: convert drm_display_mode to hw specific display mode and
128 * would be called by encoder->mode_set().
129 * @check_mode: check if mode is valid or not.
130 * @dpms: display device on or off.
131 * @commit: apply changes to hw
133 struct exynos_drm_display
;
134 struct exynos_drm_display_ops
{
135 int (*create_connector
)(struct exynos_drm_display
*display
,
136 struct drm_encoder
*encoder
);
137 void (*remove
)(struct exynos_drm_display
*display
);
138 void (*mode_fixup
)(struct exynos_drm_display
*display
,
139 struct drm_connector
*connector
,
140 const struct drm_display_mode
*mode
,
141 struct drm_display_mode
*adjusted_mode
);
142 void (*mode_set
)(struct exynos_drm_display
*display
,
143 struct drm_display_mode
*mode
);
144 int (*check_mode
)(struct exynos_drm_display
*display
,
145 struct drm_display_mode
*mode
);
146 void (*dpms
)(struct exynos_drm_display
*display
, int mode
);
147 void (*commit
)(struct exynos_drm_display
*display
);
151 * Exynos drm display structure, maps 1:1 with an encoder/connector
153 * @list: the list entry for this manager
154 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
155 * @encoder: encoder object this display maps to
156 * @connector: connector object this display maps to
157 * @ops: pointer to callbacks for exynos drm specific functionality
158 * @ctx: A pointer to the display's implementation specific context
160 struct exynos_drm_display
{
161 struct list_head list
;
162 enum exynos_drm_output_type type
;
163 struct drm_encoder
*encoder
;
164 struct drm_connector
*connector
;
165 struct exynos_drm_display_ops
*ops
;
170 * Exynos drm manager ops
172 * @dpms: control device power.
173 * @mode_fixup: fix mode data before applying it
174 * @mode_set: set the given mode to the manager
175 * @commit: set current hw specific display mode to hw.
176 * @enable_vblank: specific driver callback for enabling vblank interrupt.
177 * @disable_vblank: specific driver callback for disabling vblank interrupt.
178 * @wait_for_vblank: wait for vblank interrupt to make sure that
179 * hardware overlay is updated.
180 * @win_mode_set: copy drm overlay info to hw specific overlay info.
181 * @win_commit: apply hardware specific overlay data to registers.
182 * @win_enable: enable hardware specific overlay.
183 * @win_disable: disable hardware specific overlay.
185 struct exynos_drm_manager
;
186 struct exynos_drm_manager_ops
{
187 void (*dpms
)(struct exynos_drm_manager
*mgr
, int mode
);
188 bool (*mode_fixup
)(struct exynos_drm_manager
*mgr
,
189 const struct drm_display_mode
*mode
,
190 struct drm_display_mode
*adjusted_mode
);
191 void (*mode_set
)(struct exynos_drm_manager
*mgr
,
192 const struct drm_display_mode
*mode
);
193 void (*commit
)(struct exynos_drm_manager
*mgr
);
194 int (*enable_vblank
)(struct exynos_drm_manager
*mgr
);
195 void (*disable_vblank
)(struct exynos_drm_manager
*mgr
);
196 void (*wait_for_vblank
)(struct exynos_drm_manager
*mgr
);
197 void (*win_mode_set
)(struct exynos_drm_manager
*mgr
,
198 struct exynos_drm_overlay
*overlay
);
199 void (*win_commit
)(struct exynos_drm_manager
*mgr
, int zpos
);
200 void (*win_enable
)(struct exynos_drm_manager
*mgr
, int zpos
);
201 void (*win_disable
)(struct exynos_drm_manager
*mgr
, int zpos
);
205 * Exynos drm common manager structure, maps 1:1 with a crtc
207 * @list: the list entry for this manager
208 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
209 * @drm_dev: pointer to the drm device
210 * @crtc: crtc object.
211 * @pipe: the pipe number for this crtc/manager
212 * @ops: pointer to callbacks for exynos drm specific functionality
213 * @ctx: A pointer to the manager's implementation specific context
215 struct exynos_drm_manager
{
216 struct list_head list
;
217 enum exynos_drm_output_type type
;
218 struct drm_device
*drm_dev
;
219 struct drm_crtc
*crtc
;
221 struct exynos_drm_manager_ops
*ops
;
225 struct exynos_drm_g2d_private
{
227 struct list_head inuse_cmdlist
;
228 struct list_head event_list
;
229 struct list_head userptr_list
;
232 struct exynos_drm_ipp_private
{
234 struct list_head event_list
;
237 struct drm_exynos_file_private
{
238 struct exynos_drm_g2d_private
*g2d_priv
;
239 struct exynos_drm_ipp_private
*ipp_priv
;
240 struct file
*anon_filp
;
244 * Exynos drm private structure.
246 * @da_start: start address to device address space.
247 * with iommu, device address space starts from this address
248 * otherwise default one.
249 * @da_space_size: size of device address space.
250 * if 0 then default value is used for it.
251 * @pipe: the pipe number for this crtc/manager.
253 struct exynos_drm_private
{
254 struct drm_fb_helper
*fb_helper
;
256 /* list head for new event to be added. */
257 struct list_head pageflip_event_list
;
260 * created crtc object would be contained at this array and
261 * this array is used to be aware of which crtc did it request vblank.
263 struct drm_crtc
*crtc
[MAX_CRTC
];
264 struct drm_property
*plane_zpos_property
;
265 struct drm_property
*crtc_mode_property
;
267 unsigned long da_start
;
268 unsigned long da_space_size
;
274 * Exynos drm sub driver structure.
276 * @list: sub driver has its own list object to register to exynos drm driver.
277 * @dev: pointer to device object for subdrv device driver.
278 * @drm_dev: pointer to drm_device and this pointer would be set
279 * when sub driver calls exynos_drm_subdrv_register().
280 * @manager: subdrv has its own manager to control a hardware appropriately
281 * and we can access a hardware drawing on this manager.
282 * @probe: this callback would be called by exynos drm driver after
283 * subdrv is registered to it.
284 * @remove: this callback is used to release resources created
286 * @open: this would be called with drm device file open.
287 * @close: this would be called with drm device file close.
289 struct exynos_drm_subdrv
{
290 struct list_head list
;
292 struct drm_device
*drm_dev
;
294 int (*probe
)(struct drm_device
*drm_dev
, struct device
*dev
);
295 void (*remove
)(struct drm_device
*drm_dev
, struct device
*dev
);
296 int (*open
)(struct drm_device
*drm_dev
, struct device
*dev
,
297 struct drm_file
*file
);
298 void (*close
)(struct drm_device
*drm_dev
, struct device
*dev
,
299 struct drm_file
*file
);
302 /* This function would be called by non kms drivers such as g2d and ipp. */
303 int exynos_drm_subdrv_register(struct exynos_drm_subdrv
*drm_subdrv
);
305 /* this function removes subdrv list from exynos drm driver */
306 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv
*drm_subdrv
);
308 int exynos_drm_device_subdrv_probe(struct drm_device
*dev
);
309 int exynos_drm_device_subdrv_remove(struct drm_device
*dev
);
310 int exynos_drm_subdrv_open(struct drm_device
*dev
, struct drm_file
*file
);
311 void exynos_drm_subdrv_close(struct drm_device
*dev
, struct drm_file
*file
);
314 * this function registers exynos drm hdmi platform device. It ensures only one
315 * instance of the device is created.
317 int exynos_platform_device_hdmi_register(void);
320 * this function unregisters exynos drm hdmi platform device if it exists.
322 void exynos_platform_device_hdmi_unregister(void);
325 * this function registers exynos drm ipp platform device.
327 int exynos_platform_device_ipp_register(void);
330 * this function unregisters exynos drm ipp platform device if it exists.
332 void exynos_platform_device_ipp_unregister(void);
334 #ifdef CONFIG_DRM_EXYNOS_DPI
335 int exynos_dpi_probe(struct drm_device
*drm_dev
, struct device
*dev
);
336 int exynos_dpi_remove(struct drm_device
*drm_dev
, struct device
*dev
);
337 struct device_node
*exynos_dpi_of_find_panel_node(struct device
*dev
);
339 static inline int exynos_dpi_probe(struct drm_device
*drm_dev
,
340 struct device
*dev
) { return 0; }
341 static inline int exynos_dpi_remove(struct drm_device
*drm_dev
,
342 struct device
*dev
) { return 0; }
343 static inline struct device_node
344 *exynos_dpi_of_find_panel_node(struct device
*dev
)
349 * this function registers exynos drm vidi platform device/driver.
351 int exynos_drm_probe_vidi(void);
354 * this function unregister exynos drm vidi platform device/driver.
356 void exynos_drm_remove_vidi(void);
358 /* This function creates a encoder and a connector, and initializes them. */
359 int exynos_drm_create_enc_conn(struct drm_device
*dev
,
360 struct exynos_drm_display
*display
);
362 struct component_ops
;
363 int exynos_drm_component_add(struct device
*dev
,
364 const struct component_ops
*ops
);
366 void exynos_drm_component_del(struct device
*dev
,
367 const struct component_ops
*ops
);
369 extern struct platform_driver fimd_driver
;
370 extern struct platform_driver dp_driver
;
371 extern struct platform_driver dsi_driver
;
372 extern struct platform_driver mixer_driver
;
373 extern struct platform_driver hdmi_driver
;
374 extern struct platform_driver exynos_drm_common_hdmi_driver
;
375 extern struct platform_driver vidi_driver
;
376 extern struct platform_driver g2d_driver
;
377 extern struct platform_driver fimc_driver
;
378 extern struct platform_driver rotator_driver
;
379 extern struct platform_driver gsc_driver
;
380 extern struct platform_driver ipp_driver
;