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 * @enable_vblank: specific driver callback for enabling vblank interrupt.
119 * @disable_vblank: specific driver callback for disabling vblank interrupt.
120 * @atomic_check: validate state
121 * @atomic_begin: prepare device to receive an update
122 * @atomic_flush: mark the end of device update
123 * @update_plane: apply hardware specific overlay data to registers.
124 * @disable_plane: disable hardware specific overlay.
125 * @te_handler: trigger to transfer video image at the tearing effect
126 * synchronization signal if there is a page flip request.
128 struct exynos_drm_crtc;
129 struct exynos_drm_crtc_ops {
130 void (*enable)(struct exynos_drm_crtc *crtc);
131 void (*disable)(struct exynos_drm_crtc *crtc);
132 int (*enable_vblank)(struct exynos_drm_crtc *crtc);
133 void (*disable_vblank)(struct exynos_drm_crtc *crtc);
134 u32 (*get_vblank_counter)(struct exynos_drm_crtc *crtc);
135 int (*atomic_check)(struct exynos_drm_crtc *crtc,
136 struct drm_crtc_state *state);
137 void (*atomic_begin)(struct exynos_drm_crtc *crtc);
138 void (*update_plane)(struct exynos_drm_crtc *crtc,
139 struct exynos_drm_plane *plane);
140 void (*disable_plane)(struct exynos_drm_crtc *crtc,
141 struct exynos_drm_plane *plane);
142 void (*atomic_flush)(struct exynos_drm_crtc *crtc);
143 void (*te_handler)(struct exynos_drm_crtc *crtc);
146 struct exynos_drm_clk {
147 void (*enable)(struct exynos_drm_clk *clk, bool enable);
151 * Exynos specific crtc structure.
153 * @base: crtc object.
154 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
155 * @ops: pointer to callbacks for exynos drm specific functionality
156 * @ctx: A pointer to the crtc's implementation specific context
157 * @pipe_clk: A pointer to the crtc's pipeline clock.
159 struct exynos_drm_crtc {
160 struct drm_crtc base;
161 enum exynos_drm_output_type type;
162 const struct exynos_drm_crtc_ops *ops;
164 struct exynos_drm_clk *pipe_clk;
167 static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
171 crtc->pipe_clk->enable(crtc->pipe_clk, enable);
174 struct exynos_drm_g2d_private {
176 struct list_head inuse_cmdlist;
177 struct list_head event_list;
178 struct list_head userptr_list;
181 struct drm_exynos_file_private {
182 struct exynos_drm_g2d_private *g2d_priv;
183 struct device *ipp_dev;
187 * Exynos drm private structure.
189 * @da_start: start address to device address space.
190 * with iommu, device address space starts from this address
191 * otherwise default one.
192 * @da_space_size: size of device address space.
193 * if 0 then default value is used for it.
194 * @pending: the crtcs that have pending updates to finish
195 * @lock: protect access to @pending
196 * @wait: wait an atomic commit to finish
198 struct exynos_drm_private {
199 struct drm_fb_helper *fb_helper;
201 struct device *dma_dev;
204 /* for atomic commit */
207 wait_queue_head_t wait;
210 static inline struct device *to_dma_dev(struct drm_device *dev)
212 struct exynos_drm_private *priv = dev->dev_private;
214 return priv->dma_dev;
218 * Exynos drm sub driver structure.
220 * @list: sub driver has its own list object to register to exynos drm driver.
221 * @dev: pointer to device object for subdrv device driver.
222 * @drm_dev: pointer to drm_device and this pointer would be set
223 * when sub driver calls exynos_drm_subdrv_register().
224 * @probe: this callback would be called by exynos drm driver after
225 * subdrv is registered to it.
226 * @remove: this callback is used to release resources created
228 * @open: this would be called with drm device file open.
229 * @close: this would be called with drm device file close.
231 struct exynos_drm_subdrv {
232 struct list_head list;
234 struct drm_device *drm_dev;
236 int (*probe)(struct drm_device *drm_dev, struct device *dev);
237 void (*remove)(struct drm_device *drm_dev, struct device *dev);
238 int (*open)(struct drm_device *drm_dev, struct device *dev,
239 struct drm_file *file);
240 void (*close)(struct drm_device *drm_dev, struct device *dev,
241 struct drm_file *file);
244 /* This function would be called by non kms drivers such as g2d and ipp. */
245 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
247 /* this function removes subdrv list from exynos drm driver */
248 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
250 int exynos_drm_device_subdrv_probe(struct drm_device *dev);
251 int exynos_drm_device_subdrv_remove(struct drm_device *dev);
252 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
253 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
255 #ifdef CONFIG_DRM_EXYNOS_DPI
256 struct drm_encoder *exynos_dpi_probe(struct device *dev);
257 int exynos_dpi_remove(struct drm_encoder *encoder);
258 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
260 static inline struct drm_encoder *
261 exynos_dpi_probe(struct device *dev) { return NULL; }
262 static inline int exynos_dpi_remove(struct drm_encoder *encoder)
266 static inline int exynos_dpi_bind(struct drm_device *dev,
267 struct drm_encoder *encoder)
273 int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
275 int exynos_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
278 extern struct platform_driver fimd_driver;
279 extern struct platform_driver exynos5433_decon_driver;
280 extern struct platform_driver decon_driver;
281 extern struct platform_driver dp_driver;
282 extern struct platform_driver dsi_driver;
283 extern struct platform_driver mixer_driver;
284 extern struct platform_driver hdmi_driver;
285 extern struct platform_driver vidi_driver;
286 extern struct platform_driver g2d_driver;
287 extern struct platform_driver fimc_driver;
288 extern struct platform_driver rotator_driver;
289 extern struct platform_driver gsc_driver;
290 extern struct platform_driver ipp_driver;
291 extern struct platform_driver mic_driver;