1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
6 * Inki Dae <inki.dae@samsung.com>
7 * Joonyoung Shim <jy0922.shim@samsung.com>
8 * Seung-Woo Kim <sw0312.kim@samsung.com>
11 #ifndef _EXYNOS_DRM_DRV_H_
12 #define _EXYNOS_DRM_DRV_H_
15 #include <linux/module.h>
19 #define MAX_FB_BUFFER 4
23 #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
24 #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
26 /* this enumerates display type. */
27 enum exynos_drm_output_type {
28 EXYNOS_DISPLAY_TYPE_NONE,
29 /* RGB or CPU Interface. */
30 EXYNOS_DISPLAY_TYPE_LCD,
32 EXYNOS_DISPLAY_TYPE_HDMI,
33 /* Virtual Display Interface. */
34 EXYNOS_DISPLAY_TYPE_VIDI,
37 struct exynos_drm_rect {
43 * Exynos drm plane state structure.
45 * @base: plane_state object (contains drm_framebuffer pointer)
46 * @src: rectangle of the source image data to be displayed (clipped to
48 * @crtc: rectangle of the target image position on hardware screen
49 * (clipped to visible part).
50 * @h_ratio: horizontal scaling ratio, 16.16 fixed point
51 * @v_ratio: vertical scaling ratio, 16.16 fixed point
53 * this structure consists plane state data that will be applied to hardware
54 * specific overlay info.
57 struct exynos_drm_plane_state {
58 struct drm_plane_state base;
59 struct exynos_drm_rect crtc;
60 struct exynos_drm_rect src;
65 static inline struct exynos_drm_plane_state *
66 to_exynos_plane_state(struct drm_plane_state *state)
68 return container_of(state, struct exynos_drm_plane_state, base);
72 * Exynos drm common overlay structure.
75 * @index: hardware index of the overlay layer
77 * this structure is common to exynos SoC and its contents would be copied
78 * to hardware specific overlay info.
81 struct exynos_drm_plane {
82 struct drm_plane base;
83 const struct exynos_drm_plane_config *config;
87 #define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
88 #define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
89 #define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
90 #define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3)
91 #define EXYNOS_DRM_PLANE_CAP_PIX_BLEND (1 << 4)
92 #define EXYNOS_DRM_PLANE_CAP_WIN_BLEND (1 << 5)
95 * Exynos DRM plane configuration structure.
97 * @zpos: initial z-position of the plane.
98 * @type: type of the plane (primary, cursor or overlay).
99 * @pixel_formats: supported pixel formats.
100 * @num_pixel_formats: number of elements in 'pixel_formats'.
101 * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
104 struct exynos_drm_plane_config {
106 enum drm_plane_type type;
107 const uint32_t *pixel_formats;
108 unsigned int num_pixel_formats;
109 unsigned int capabilities;
113 * Exynos drm crtc ops
115 * @enable: enable the device
116 * @disable: disable the device
117 * @enable_vblank: specific driver callback for enabling vblank interrupt.
118 * @disable_vblank: specific driver callback for disabling vblank interrupt.
119 * @mode_valid: specific driver callback for mode validation
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 enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
135 const struct drm_display_mode *mode);
136 bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
137 const struct drm_display_mode *mode,
138 struct drm_display_mode *adjusted_mode);
139 int (*atomic_check)(struct exynos_drm_crtc *crtc,
140 struct drm_crtc_state *state);
141 void (*atomic_begin)(struct exynos_drm_crtc *crtc);
142 void (*update_plane)(struct exynos_drm_crtc *crtc,
143 struct exynos_drm_plane *plane);
144 void (*disable_plane)(struct exynos_drm_crtc *crtc,
145 struct exynos_drm_plane *plane);
146 void (*atomic_flush)(struct exynos_drm_crtc *crtc);
147 void (*te_handler)(struct exynos_drm_crtc *crtc);
150 struct exynos_drm_clk {
151 void (*enable)(struct exynos_drm_clk *clk, bool enable);
155 * Exynos specific crtc structure.
157 * @base: crtc object.
158 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
159 * @ops: pointer to callbacks for exynos drm specific functionality
160 * @ctx: A pointer to the crtc's implementation specific context
161 * @pipe_clk: A pointer to the crtc's pipeline clock.
163 struct exynos_drm_crtc {
164 struct drm_crtc base;
165 enum exynos_drm_output_type type;
166 const struct exynos_drm_crtc_ops *ops;
168 struct exynos_drm_clk *pipe_clk;
172 static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
176 crtc->pipe_clk->enable(crtc->pipe_clk, enable);
179 struct drm_exynos_file_private {
181 struct list_head inuse_cmdlist;
182 struct list_head event_list;
183 struct list_head userptr_list;
187 * Exynos drm private structure.
189 * @pending: the crtcs that have pending updates to finish
190 * @lock: protect access to @pending
191 * @wait: wait an atomic commit to finish
193 struct exynos_drm_private {
194 struct drm_fb_helper *fb_helper;
196 struct device *g2d_dev;
197 struct device *dma_dev;
200 /* for atomic commit */
203 wait_queue_head_t wait;
206 static inline struct device *to_dma_dev(struct drm_device *dev)
208 struct exynos_drm_private *priv = dev->dev_private;
210 return priv->dma_dev;
213 static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
215 struct exynos_drm_private *priv = drm_dev->dev_private;
217 return priv->mapping ? true : false;
220 int exynos_drm_register_dma(struct drm_device *drm, struct device *dev);
221 void exynos_drm_unregister_dma(struct drm_device *drm, struct device *dev);
222 void exynos_drm_cleanup_dma(struct drm_device *drm);
224 #ifdef CONFIG_DRM_EXYNOS_DPI
225 struct drm_encoder *exynos_dpi_probe(struct device *dev);
226 int exynos_dpi_remove(struct drm_encoder *encoder);
227 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
229 static inline struct drm_encoder *
230 exynos_dpi_probe(struct device *dev) { return NULL; }
231 static inline int exynos_dpi_remove(struct drm_encoder *encoder)
235 static inline int exynos_dpi_bind(struct drm_device *dev,
236 struct drm_encoder *encoder)
242 #ifdef CONFIG_DRM_EXYNOS_FIMC
243 int exynos_drm_check_fimc_device(struct device *dev);
245 static inline int exynos_drm_check_fimc_device(struct device *dev)
251 int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
255 extern struct platform_driver fimd_driver;
256 extern struct platform_driver exynos5433_decon_driver;
257 extern struct platform_driver decon_driver;
258 extern struct platform_driver dp_driver;
259 extern struct platform_driver dsi_driver;
260 extern struct platform_driver mixer_driver;
261 extern struct platform_driver hdmi_driver;
262 extern struct platform_driver vidi_driver;
263 extern struct platform_driver g2d_driver;
264 extern struct platform_driver fimc_driver;
265 extern struct platform_driver rotator_driver;
266 extern struct platform_driver scaler_driver;
267 extern struct platform_driver gsc_driver;
268 extern struct platform_driver mic_driver;