1 /* exynos_drm_drv.h 2 * 3 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 4 * Authors: 5 * Inki Dae <inki.dae@samsung.com> 6 * Joonyoung Shim <jy0922.shim@samsung.com> 7 * Seung-Woo Kim <sw0312.kim@samsung.com> 8 * 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. 13 */ 14 15 #ifndef _EXYNOS_DRM_DRV_H_ 16 #define _EXYNOS_DRM_DRV_H_ 17 18 #include <drm/drmP.h> 19 #include <linux/module.h> 20 21 #define MAX_CRTC 3 22 #define MAX_PLANE 5 23 #define MAX_FB_BUFFER 4 24 25 #define DEFAULT_WIN 0 26 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) 29 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, 35 /* HDMI Interface. */ 36 EXYNOS_DISPLAY_TYPE_HDMI, 37 /* Virtual Display Interface. */ 38 EXYNOS_DISPLAY_TYPE_VIDI, 39 }; 40 41 struct exynos_drm_rect { 42 unsigned int x, y; 43 unsigned int w, h; 44 }; 45 46 /* 47 * Exynos drm plane state structure. 48 * 49 * @base: plane_state object (contains drm_framebuffer pointer) 50 * @src: rectangle of the source image data to be displayed (clipped to 51 * visible part). 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 56 * 57 * this structure consists plane state data that will be applied to hardware 58 * specific overlay info. 59 */ 60 61 struct exynos_drm_plane_state { 62 struct drm_plane_state base; 63 struct exynos_drm_rect crtc; 64 struct exynos_drm_rect src; 65 unsigned int h_ratio; 66 unsigned int v_ratio; 67 }; 68 69 static inline struct exynos_drm_plane_state * 70 to_exynos_plane_state(struct drm_plane_state *state) 71 { 72 return container_of(state, struct exynos_drm_plane_state, base); 73 } 74 75 /* 76 * Exynos drm common overlay structure. 77 * 78 * @base: plane object 79 * @index: hardware index of the overlay layer 80 * 81 * this structure is common to exynos SoC and its contents would be copied 82 * to hardware specific overlay info. 83 */ 84 85 struct exynos_drm_plane { 86 struct drm_plane base; 87 const struct exynos_drm_plane_config *config; 88 unsigned int index; 89 }; 90 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) 94 #define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3) 95 #define EXYNOS_DRM_PLANE_CAP_PIX_BLEND (1 << 4) 96 #define EXYNOS_DRM_PLANE_CAP_WIN_BLEND (1 << 5) 97 98 /* 99 * Exynos DRM plane configuration structure. 100 * 101 * @zpos: initial z-position of the plane. 102 * @type: type of the plane (primary, cursor or overlay). 103 * @pixel_formats: supported pixel formats. 104 * @num_pixel_formats: number of elements in 'pixel_formats'. 105 * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*) 106 */ 107 108 struct exynos_drm_plane_config { 109 unsigned int zpos; 110 enum drm_plane_type type; 111 const uint32_t *pixel_formats; 112 unsigned int num_pixel_formats; 113 unsigned int capabilities; 114 }; 115 116 /* 117 * Exynos drm crtc ops 118 * 119 * @enable: enable the device 120 * @disable: disable the device 121 * @enable_vblank: specific driver callback for enabling vblank interrupt. 122 * @disable_vblank: specific driver callback for disabling vblank interrupt. 123 * @mode_valid: specific driver callback for mode validation 124 * @atomic_check: validate state 125 * @atomic_begin: prepare device to receive an update 126 * @atomic_flush: mark the end of device update 127 * @update_plane: apply hardware specific overlay data to registers. 128 * @disable_plane: disable hardware specific overlay. 129 * @te_handler: trigger to transfer video image at the tearing effect 130 * synchronization signal if there is a page flip request. 131 */ 132 struct exynos_drm_crtc; 133 struct exynos_drm_crtc_ops { 134 void (*enable)(struct exynos_drm_crtc *crtc); 135 void (*disable)(struct exynos_drm_crtc *crtc); 136 int (*enable_vblank)(struct exynos_drm_crtc *crtc); 137 void (*disable_vblank)(struct exynos_drm_crtc *crtc); 138 enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc, 139 const struct drm_display_mode *mode); 140 bool (*mode_fixup)(struct exynos_drm_crtc *crtc, 141 const struct drm_display_mode *mode, 142 struct drm_display_mode *adjusted_mode); 143 int (*atomic_check)(struct exynos_drm_crtc *crtc, 144 struct drm_crtc_state *state); 145 void (*atomic_begin)(struct exynos_drm_crtc *crtc); 146 void (*update_plane)(struct exynos_drm_crtc *crtc, 147 struct exynos_drm_plane *plane); 148 void (*disable_plane)(struct exynos_drm_crtc *crtc, 149 struct exynos_drm_plane *plane); 150 void (*atomic_flush)(struct exynos_drm_crtc *crtc); 151 void (*te_handler)(struct exynos_drm_crtc *crtc); 152 }; 153 154 struct exynos_drm_clk { 155 void (*enable)(struct exynos_drm_clk *clk, bool enable); 156 }; 157 158 /* 159 * Exynos specific crtc structure. 160 * 161 * @base: crtc object. 162 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 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. 166 */ 167 struct exynos_drm_crtc { 168 struct drm_crtc base; 169 enum exynos_drm_output_type type; 170 const struct exynos_drm_crtc_ops *ops; 171 void *ctx; 172 struct exynos_drm_clk *pipe_clk; 173 bool i80_mode : 1; 174 }; 175 176 static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc, 177 bool enable) 178 { 179 if (crtc->pipe_clk) 180 crtc->pipe_clk->enable(crtc->pipe_clk, enable); 181 } 182 183 struct drm_exynos_file_private { 184 /* for g2d api */ 185 struct list_head inuse_cmdlist; 186 struct list_head event_list; 187 struct list_head userptr_list; 188 }; 189 190 /* 191 * Exynos drm private structure. 192 * 193 * @pending: the crtcs that have pending updates to finish 194 * @lock: protect access to @pending 195 * @wait: wait an atomic commit to finish 196 */ 197 struct exynos_drm_private { 198 struct drm_fb_helper *fb_helper; 199 200 struct device *g2d_dev; 201 struct device *dma_dev; 202 void *mapping; 203 204 /* for atomic commit */ 205 u32 pending; 206 spinlock_t lock; 207 wait_queue_head_t wait; 208 }; 209 210 static inline struct device *to_dma_dev(struct drm_device *dev) 211 { 212 struct exynos_drm_private *priv = dev->dev_private; 213 214 return priv->dma_dev; 215 } 216 217 static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) 218 { 219 struct exynos_drm_private *priv = drm_dev->dev_private; 220 221 return priv->mapping ? true : false; 222 } 223 224 int exynos_drm_register_dma(struct drm_device *drm, struct device *dev); 225 void exynos_drm_unregister_dma(struct drm_device *drm, struct device *dev); 226 void exynos_drm_cleanup_dma(struct drm_device *drm); 227 228 #ifdef CONFIG_DRM_EXYNOS_DPI 229 struct drm_encoder *exynos_dpi_probe(struct device *dev); 230 int exynos_dpi_remove(struct drm_encoder *encoder); 231 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder); 232 #else 233 static inline struct drm_encoder * 234 exynos_dpi_probe(struct device *dev) { return NULL; } 235 static inline int exynos_dpi_remove(struct drm_encoder *encoder) 236 { 237 return 0; 238 } 239 static inline int exynos_dpi_bind(struct drm_device *dev, 240 struct drm_encoder *encoder) 241 { 242 return 0; 243 } 244 #endif 245 246 #ifdef CONFIG_DRM_EXYNOS_FIMC 247 int exynos_drm_check_fimc_device(struct device *dev); 248 #else 249 static inline int exynos_drm_check_fimc_device(struct device *dev) 250 { 251 return 0; 252 } 253 #endif 254 255 int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, 256 bool nonblock); 257 258 259 extern struct platform_driver fimd_driver; 260 extern struct platform_driver exynos5433_decon_driver; 261 extern struct platform_driver decon_driver; 262 extern struct platform_driver dp_driver; 263 extern struct platform_driver dsi_driver; 264 extern struct platform_driver mixer_driver; 265 extern struct platform_driver hdmi_driver; 266 extern struct platform_driver vidi_driver; 267 extern struct platform_driver g2d_driver; 268 extern struct platform_driver fimc_driver; 269 extern struct platform_driver rotator_driver; 270 extern struct platform_driver scaler_driver; 271 extern struct platform_driver gsc_driver; 272 extern struct platform_driver mic_driver; 273 #endif 274