exynos_drm_drv.h 12.1 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
/* exynos_drm_drv.h
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Authors:
 *	Inki Dae <inki.dae@samsung.com>
 *	Joonyoung Shim <jy0922.shim@samsung.com>
 *	Seung-Woo Kim <sw0312.kim@samsung.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _EXYNOS_DRM_DRV_H_
#define _EXYNOS_DRM_DRV_H_

I
Inki Dae 已提交
32
#include <linux/module.h>
33

34
#define MAX_CRTC	3
35
#define MAX_PLANE	5
36
#define MAX_FB_BUFFER	4
37
#define DEFAULT_ZPOS	-1
38

39 40 41 42 43 44 45 46 47 48 49 50 51 52
#define _wait_for(COND, MS) ({ \
	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);	\
	int ret__ = 0;							\
	while (!(COND)) {						\
		if (time_after(jiffies, timeout__)) {			\
			ret__ = -ETIMEDOUT;				\
			break;						\
		}							\
	}								\
	ret__;								\
})

#define wait_for(COND, MS) _wait_for(COND, MS)

53 54 55 56
struct drm_device;
struct exynos_drm_overlay;
struct drm_connector;

57 58
extern unsigned int drm_vblank_offdelay;

59 60 61 62 63 64 65
/* this enumerates display type. */
enum exynos_drm_output_type {
	EXYNOS_DISPLAY_TYPE_NONE,
	/* RGB or CPU Interface. */
	EXYNOS_DISPLAY_TYPE_LCD,
	/* HDMI Interface. */
	EXYNOS_DISPLAY_TYPE_HDMI,
66 67
	/* Virtual Display Interface. */
	EXYNOS_DISPLAY_TYPE_VIDI,
68 69 70 71 72 73 74
};

/*
 * Exynos drm overlay ops structure.
 *
 * @mode_set: copy drm overlay info to hw specific overlay info.
 * @commit: apply hardware specific overlay data to registers.
75
 * @enable: enable hardware specific overlay.
76 77 78 79 80
 * @disable: disable hardware specific overlay.
 */
struct exynos_drm_overlay_ops {
	void (*mode_set)(struct device *subdrv_dev,
			 struct exynos_drm_overlay *overlay);
81
	void (*commit)(struct device *subdrv_dev, int zpos);
82
	void (*enable)(struct device *subdrv_dev, int zpos);
83
	void (*disable)(struct device *subdrv_dev, int zpos);
84 85 86 87 88
};

/*
 * Exynos drm common overlay structure.
 *
89 90 91 92 93 94
 * @fb_x: offset x on a framebuffer to be displayed.
 *	- the unit is screen coordinates.
 * @fb_y: offset y on a framebuffer to be displayed.
 *	- the unit is screen coordinates.
 * @fb_width: width of a framebuffer.
 * @fb_height: height of a framebuffer.
95 96
 * @src_width: width of a partial image to be displayed from framebuffer.
 * @src_height: height of a partial image to be displayed from framebuffer.
97 98 99 100 101 102 103 104 105
 * @crtc_x: offset x on hardware screen.
 * @crtc_y: offset y on hardware screen.
 * @crtc_width: window width to be displayed (hardware screen).
 * @crtc_height: window height to be displayed (hardware screen).
 * @mode_width: width of screen mode.
 * @mode_height: height of screen mode.
 * @refresh: refresh rate.
 * @scan_flag: interlace or progressive way.
 *	(it could be DRM_MODE_FLAG_*)
106
 * @bpp: pixel size.(in bit)
S
Seung-Woo Kim 已提交
107 108 109
 * @pixel_format: fourcc pixel format of this overlay
 * @dma_addr: array of bus(accessed by dma) address to the memory region
 *	      allocated for a overlay.
110
 * @zpos: order of overlay layer(z position).
111 112 113 114 115 116 117 118 119 120 121 122
 * @default_win: a window to be enabled.
 * @color_key: color key on or off.
 * @index_color: if using color key feature then this value would be used
 *			as index color.
 * @local_path: in case of lcd type, local path mode on or off.
 * @transparency: transparency on or off.
 * @activated: activated or not.
 *
 * this structure is common to exynos SoC and its contents would be copied
 * to hardware specific overlay info.
 */
struct exynos_drm_overlay {
123 124 125 126
	unsigned int fb_x;
	unsigned int fb_y;
	unsigned int fb_width;
	unsigned int fb_height;
127 128
	unsigned int src_width;
	unsigned int src_height;
129 130 131 132 133 134 135 136
	unsigned int crtc_x;
	unsigned int crtc_y;
	unsigned int crtc_width;
	unsigned int crtc_height;
	unsigned int mode_width;
	unsigned int mode_height;
	unsigned int refresh;
	unsigned int scan_flag;
137
	unsigned int bpp;
138
	unsigned int pitch;
S
Seung-Woo Kim 已提交
139 140
	uint32_t pixel_format;
	dma_addr_t dma_addr[MAX_FB_BUFFER];
141
	int zpos;
142 143 144 145 146 147 148 149 150 151 152 153 154

	bool default_win;
	bool color_key;
	unsigned int index_color;
	bool local_path;
	bool transparency;
	bool activated;
};

/*
 * Exynos DRM Display Structure.
 *	- this structure is common to analog tv, digital tv and lcd panel.
 *
155
 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
156 157
 * @is_connected: check for that display is connected or not.
 * @get_edid: get edid modes from display driver.
158
 * @get_panel: get panel object from display driver.
159 160 161
 * @check_timing: check if timing is valid or not.
 * @power_on: display device on or off.
 */
162
struct exynos_drm_display_ops {
163 164 165 166
	enum exynos_drm_output_type type;
	bool (*is_connected)(struct device *dev);
	int (*get_edid)(struct device *dev, struct drm_connector *connector,
				u8 *edid, int len);
167
	void *(*get_panel)(struct device *dev);
168 169 170 171 172 173 174
	int (*check_timing)(struct device *dev, void *timing);
	int (*power_on)(struct device *dev, int mode);
};

/*
 * Exynos drm manager ops
 *
175 176
 * @dpms: control device power.
 * @apply: set timing, vblank and overlay data to registers.
177
 * @mode_fixup: fix mode data comparing to hw specific display mode.
178 179
 * @mode_set: convert drm_display_mode to hw specific display mode and
 *	      would be called by encoder->mode_set().
180
 * @get_max_resol: get maximum resolution to specific hardware.
181 182 183
 * @commit: set current hw specific display mode to hw.
 * @enable_vblank: specific driver callback for enabling vblank interrupt.
 * @disable_vblank: specific driver callback for disabling vblank interrupt.
184 185
 * @wait_for_vblank: wait for vblank interrupt to make sure that
 *	hardware overlay is updated.
186 187
 */
struct exynos_drm_manager_ops {
188 189
	void (*dpms)(struct device *subdrv_dev, int mode);
	void (*apply)(struct device *subdrv_dev);
190 191
	void (*mode_fixup)(struct device *subdrv_dev,
				struct drm_connector *connector,
192
				const struct drm_display_mode *mode,
193
				struct drm_display_mode *adjusted_mode);
194
	void (*mode_set)(struct device *subdrv_dev, void *mode);
195 196
	void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width,
				unsigned int *height);
197 198 199
	void (*commit)(struct device *subdrv_dev);
	int (*enable_vblank)(struct device *subdrv_dev);
	void (*disable_vblank)(struct device *subdrv_dev);
200
	void (*wait_for_vblank)(struct device *subdrv_dev);
201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
};

/*
 * Exynos drm common manager structure.
 *
 * @dev: pointer to device object for subdrv device driver.
 *	sub drivers such as display controller or hdmi driver,
 *	have their own device object.
 * @ops: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control hardware global registers.
 * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control hardware overlay reigsters.
 * @display: pointer to callbacks for exynos drm specific framebuffer.
 *	these callbacks should be set by specific drivers such fimd
 *	or hdmi driver and are used to control display devices such as
 *	analog tv, digital tv and lcd panel and also get timing data for them.
 */
struct exynos_drm_manager {
	struct device *dev;
	int pipe;
	struct exynos_drm_manager_ops *ops;
	struct exynos_drm_overlay_ops *overlay_ops;
225
	struct exynos_drm_display_ops *display_ops;
226 227
};

J
Joonyoung Shim 已提交
228 229 230 231
struct exynos_drm_g2d_private {
	struct device		*dev;
	struct list_head	inuse_cmdlist;
	struct list_head	event_list;
232
	struct list_head	userptr_list;
J
Joonyoung Shim 已提交
233 234
};

E
Eunchul Kim 已提交
235 236 237 238 239
struct exynos_drm_ipp_private {
	struct device	*dev;
	struct list_head	event_list;
};

J
Joonyoung Shim 已提交
240 241
struct drm_exynos_file_private {
	struct exynos_drm_g2d_private	*g2d_priv;
E
Eunchul Kim 已提交
242
	struct exynos_drm_ipp_private	*ipp_priv;
J
Joonyoung Shim 已提交
243 244
};

245 246
/*
 * Exynos drm private structure.
247 248 249 250 251 252 253
 *
 * @da_start: start address to device address space.
 *	with iommu, device address space starts from this address
 *	otherwise default one.
 * @da_space_size: size of device address space.
 *	if 0 then default value is used for it.
 * @da_space_order: order to device address space.
254 255 256 257
 */
struct exynos_drm_private {
	struct drm_fb_helper *fb_helper;

I
Inki Dae 已提交
258
	/* list head for new event to be added. */
259 260 261 262 263 264 265
	struct list_head pageflip_event_list;

	/*
	 * created crtc object would be contained at this array and
	 * this array is used to be aware of which crtc did it request vblank.
	 */
	struct drm_crtc *crtc[MAX_CRTC];
266
	struct drm_property *plane_zpos_property;
267
	struct drm_property *crtc_mode_property;
268 269 270 271

	unsigned long da_start;
	unsigned long da_space_size;
	unsigned long da_space_order;
272 273 274 275 276 277
};

/*
 * Exynos drm sub driver structure.
 *
 * @list: sub driver has its own list object to register to exynos drm driver.
278
 * @dev: pointer to device object for subdrv device driver.
279 280
 * @drm_dev: pointer to drm_device and this pointer would be set
 *	when sub driver calls exynos_drm_subdrv_register().
281 282
 * @manager: subdrv has its own manager to control a hardware appropriately
 *	and we can access a hardware drawing on this manager.
283 284 285 286
 * @probe: this callback would be called by exynos drm driver after
 *	subdrv is registered to it.
 * @remove: this callback is used to release resources created
 *	by probe callback.
287 288
 * @open: this would be called with drm device file open.
 * @close: this would be called with drm device file close.
289 290 291 292 293
 * @encoder: encoder object owned by this sub driver.
 * @connector: connector object owned by this sub driver.
 */
struct exynos_drm_subdrv {
	struct list_head list;
294
	struct device *dev;
295
	struct drm_device *drm_dev;
296
	struct exynos_drm_manager *manager;
297

298
	int (*probe)(struct drm_device *drm_dev, struct device *dev);
299
	void (*remove)(struct drm_device *drm_dev, struct device *dev);
300 301 302 303
	int (*open)(struct drm_device *drm_dev, struct device *dev,
			struct drm_file *file);
	void (*close)(struct drm_device *drm_dev, struct device *dev,
			struct drm_file *file);
304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324

	struct drm_encoder *encoder;
	struct drm_connector *connector;
};

/*
 * this function calls a probe callback registered to sub driver list and
 * create its own encoder and connector and then set drm_device object
 * to global one.
 */
int exynos_drm_device_register(struct drm_device *dev);
/*
 * this function calls a remove callback registered to sub driver list and
 * destroy its own encoder and connetor.
 */
int exynos_drm_device_unregister(struct drm_device *dev);

/*
 * this function would be called by sub drivers such as display controller
 * or hdmi driver to register this sub driver object to exynos drm driver
 * and when a sub driver is registered to exynos drm driver a probe callback
325
 * of the sub driver is called and creates its own encoder and connector.
326 327 328
 */
int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);

329
/* this function removes subdrv list from exynos drm driver */
330 331
int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);

332 333 334
int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);

335 336 337 338 339 340 341 342 343 344 345
/*
 * this function registers exynos drm hdmi platform device. It ensures only one
 * instance of the device is created.
 */
extern int exynos_platform_device_hdmi_register(void);

/*
 * this function unregisters exynos drm hdmi platform device if it exists.
 */
void exynos_platform_device_hdmi_unregister(void);

346 347 348 349
extern struct platform_driver fimd_driver;
extern struct platform_driver hdmi_driver;
extern struct platform_driver mixer_driver;
extern struct platform_driver exynos_drm_common_hdmi_driver;
350
extern struct platform_driver vidi_driver;
J
Joonyoung Shim 已提交
351
extern struct platform_driver g2d_driver;
E
Eunchul Kim 已提交
352
extern struct platform_driver fimc_driver;
E
Eunchul Kim 已提交
353
extern struct platform_driver rotator_driver;
E
Eunchul Kim 已提交
354
extern struct platform_driver ipp_driver;
355
#endif