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_
19 #include <linux/module.h>
23 #define MAX_FB_BUFFER 4
27 #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
28 #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
30 /* this enumerates display type. */
31 enum exynos_drm_output_type
{
32 EXYNOS_DISPLAY_TYPE_NONE
,
33 /* RGB or CPU Interface. */
34 EXYNOS_DISPLAY_TYPE_LCD
,
36 EXYNOS_DISPLAY_TYPE_HDMI
,
37 /* Virtual Display Interface. */
38 EXYNOS_DISPLAY_TYPE_VIDI
,
41 struct exynos_drm_rect
{
47 * Exynos drm plane state structure.
49 * @base: plane_state object (contains drm_framebuffer pointer)
50 * @src: rectangle of the source image data to be displayed (clipped to
52 * @crtc: rectangle of the target image position on hardware screen
53 * (clipped to visible part).
54 * @h_ratio: horizontal scaling ratio, 16.16 fixed point
55 * @v_ratio: vertical scaling ratio, 16.16 fixed point
57 * this structure consists plane state data that will be applied to hardware
58 * specific overlay info.
61 struct exynos_drm_plane_state
{
62 struct drm_plane_state base
;
63 struct exynos_drm_rect crtc
;
64 struct exynos_drm_rect src
;
69 static inline struct exynos_drm_plane_state
*
70 to_exynos_plane_state(struct drm_plane_state
*state
)
72 return container_of(state
, struct exynos_drm_plane_state
, base
);
76 * Exynos drm common overlay structure.
79 * @index: hardware index of the overlay layer
81 * this structure is common to exynos SoC and its contents would be copied
82 * to hardware specific overlay info.
85 struct exynos_drm_plane
{
86 struct drm_plane base
;
87 const struct exynos_drm_plane_config
*config
;
91 #define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
92 #define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
93 #define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
96 * Exynos DRM plane configuration structure.
98 * @zpos: initial z-position of the plane.
99 * @type: type of the plane (primary, cursor or overlay).
100 * @pixel_formats: supported pixel formats.
101 * @num_pixel_formats: number of elements in 'pixel_formats'.
102 * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
105 struct exynos_drm_plane_config
{
107 enum drm_plane_type type
;
108 const uint32_t *pixel_formats
;
109 unsigned int num_pixel_formats
;
110 unsigned int capabilities
;
114 * Exynos drm crtc ops
116 * @enable: enable the device
117 * @disable: disable the device
118 * @commit: set current hw specific display mode to hw.
119 * @enable_vblank: specific driver callback for enabling vblank interrupt.
120 * @disable_vblank: specific driver callback for disabling vblank interrupt.
121 * @atomic_check: validate state
122 * @atomic_begin: prepare device to receive an update
123 * @atomic_flush: mark the end of device update
124 * @update_plane: apply hardware specific overlay data to registers.
125 * @disable_plane: disable hardware specific overlay.
126 * @te_handler: trigger to transfer video image at the tearing effect
127 * synchronization signal if there is a page flip request.
129 struct exynos_drm_crtc
;
130 struct exynos_drm_crtc_ops
{
131 void (*enable
)(struct exynos_drm_crtc
*crtc
);
132 void (*disable
)(struct exynos_drm_crtc
*crtc
);
133 void (*commit
)(struct exynos_drm_crtc
*crtc
);
134 int (*enable_vblank
)(struct exynos_drm_crtc
*crtc
);
135 void (*disable_vblank
)(struct exynos_drm_crtc
*crtc
);
136 int (*atomic_check
)(struct exynos_drm_crtc
*crtc
,
137 struct drm_crtc_state
*state
);
138 void (*atomic_begin
)(struct exynos_drm_crtc
*crtc
);
139 void (*update_plane
)(struct exynos_drm_crtc
*crtc
,
140 struct exynos_drm_plane
*plane
);
141 void (*disable_plane
)(struct exynos_drm_crtc
*crtc
,
142 struct exynos_drm_plane
*plane
);
143 void (*atomic_flush
)(struct exynos_drm_crtc
*crtc
);
144 void (*te_handler
)(struct exynos_drm_crtc
*crtc
);
147 struct exynos_drm_clk
{
148 void (*enable
)(struct exynos_drm_clk
*clk
, bool enable
);
152 * Exynos specific crtc structure.
154 * @base: crtc object.
155 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
156 * @pipe: a crtc index created at load() with a new crtc object creation
157 * and the crtc object would be set to private->crtc array
158 * to get a crtc object corresponding to this pipe from private->crtc
159 * array when irq interrupt occurred. the reason of using this pipe is that
160 * drm framework doesn't support multiple irq yet.
161 * we can refer to the crtc to current hardware interrupt occurred through
163 * @ops: pointer to callbacks for exynos drm specific functionality
164 * @ctx: A pointer to the crtc's implementation specific context
165 * @pipe_clk: A pointer to the crtc's pipeline clock.
167 struct exynos_drm_crtc
{
168 struct drm_crtc base
;
169 enum exynos_drm_output_type type
;
171 const struct exynos_drm_crtc_ops
*ops
;
173 struct exynos_drm_clk
*pipe_clk
;
176 static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc
*crtc
,
180 crtc
->pipe_clk
->enable(crtc
->pipe_clk
, enable
);
183 struct exynos_drm_g2d_private
{
185 struct list_head inuse_cmdlist
;
186 struct list_head event_list
;
187 struct list_head userptr_list
;
190 struct drm_exynos_file_private
{
191 struct exynos_drm_g2d_private
*g2d_priv
;
192 struct device
*ipp_dev
;
196 * Exynos drm private structure.
198 * @da_start: start address to device address space.
199 * with iommu, device address space starts from this address
200 * otherwise default one.
201 * @da_space_size: size of device address space.
202 * if 0 then default value is used for it.
203 * @pipe: the pipe number for this crtc/manager.
204 * @pending: the crtcs that have pending updates to finish
205 * @lock: protect access to @pending
206 * @wait: wait an atomic commit to finish
208 struct exynos_drm_private
{
209 struct drm_fb_helper
*fb_helper
;
211 struct device
*dma_dev
;
216 /* for atomic commit */
219 wait_queue_head_t wait
;
222 static inline struct device
*to_dma_dev(struct drm_device
*dev
)
224 struct exynos_drm_private
*priv
= dev
->dev_private
;
226 return priv
->dma_dev
;
230 * Exynos drm sub driver structure.
232 * @list: sub driver has its own list object to register to exynos drm driver.
233 * @dev: pointer to device object for subdrv device driver.
234 * @drm_dev: pointer to drm_device and this pointer would be set
235 * when sub driver calls exynos_drm_subdrv_register().
236 * @probe: this callback would be called by exynos drm driver after
237 * subdrv is registered to it.
238 * @remove: this callback is used to release resources created
240 * @open: this would be called with drm device file open.
241 * @close: this would be called with drm device file close.
243 struct exynos_drm_subdrv
{
244 struct list_head list
;
246 struct drm_device
*drm_dev
;
248 int (*probe
)(struct drm_device
*drm_dev
, struct device
*dev
);
249 void (*remove
)(struct drm_device
*drm_dev
, struct device
*dev
);
250 int (*open
)(struct drm_device
*drm_dev
, struct device
*dev
,
251 struct drm_file
*file
);
252 void (*close
)(struct drm_device
*drm_dev
, struct device
*dev
,
253 struct drm_file
*file
);
256 /* This function would be called by non kms drivers such as g2d and ipp. */
257 int exynos_drm_subdrv_register(struct exynos_drm_subdrv
*drm_subdrv
);
259 /* this function removes subdrv list from exynos drm driver */
260 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv
*drm_subdrv
);
262 int exynos_drm_device_subdrv_probe(struct drm_device
*dev
);
263 int exynos_drm_device_subdrv_remove(struct drm_device
*dev
);
264 int exynos_drm_subdrv_open(struct drm_device
*dev
, struct drm_file
*file
);
265 void exynos_drm_subdrv_close(struct drm_device
*dev
, struct drm_file
*file
);
267 #ifdef CONFIG_DRM_EXYNOS_DPI
268 struct drm_encoder
*exynos_dpi_probe(struct device
*dev
);
269 int exynos_dpi_remove(struct drm_encoder
*encoder
);
270 int exynos_dpi_bind(struct drm_device
*dev
, struct drm_encoder
*encoder
);
272 static inline struct drm_encoder
*
273 exynos_dpi_probe(struct device
*dev
) { return NULL
; }
274 static inline int exynos_dpi_remove(struct drm_encoder
*encoder
)
278 static inline int exynos_dpi_bind(struct drm_device
*dev
,
279 struct drm_encoder
*encoder
)
285 int exynos_atomic_commit(struct drm_device
*dev
, struct drm_atomic_state
*state
,
287 int exynos_atomic_check(struct drm_device
*dev
, struct drm_atomic_state
*state
);
290 extern struct platform_driver fimd_driver
;
291 extern struct platform_driver exynos5433_decon_driver
;
292 extern struct platform_driver decon_driver
;
293 extern struct platform_driver dp_driver
;
294 extern struct platform_driver dsi_driver
;
295 extern struct platform_driver mixer_driver
;
296 extern struct platform_driver hdmi_driver
;
297 extern struct platform_driver vidi_driver
;
298 extern struct platform_driver g2d_driver
;
299 extern struct platform_driver fimc_driver
;
300 extern struct platform_driver rotator_driver
;
301 extern struct platform_driver gsc_driver
;
302 extern struct platform_driver ipp_driver
;
303 extern struct platform_driver mic_driver
;