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 #define DEFAULT_ZPOS -1 25 26 /* This enumerates device type. */ 27 enum exynos_drm_device_type { 28 EXYNOS_DEVICE_TYPE_NONE, 29 EXYNOS_DEVICE_TYPE_CRTC, 30 EXYNOS_DEVICE_TYPE_CONNECTOR, 31 }; 32 33 /* this enumerates display type. */ 34 enum exynos_drm_output_type { 35 EXYNOS_DISPLAY_TYPE_NONE, 36 /* RGB or CPU Interface. */ 37 EXYNOS_DISPLAY_TYPE_LCD, 38 /* HDMI Interface. */ 39 EXYNOS_DISPLAY_TYPE_HDMI, 40 /* Virtual Display Interface. */ 41 EXYNOS_DISPLAY_TYPE_VIDI, 42 }; 43 44 /* 45 * Exynos drm common overlay structure. 46 * 47 * @fb_x: offset x on a framebuffer to be displayed. 48 * - the unit is screen coordinates. 49 * @fb_y: offset y on a framebuffer to be displayed. 50 * - the unit is screen coordinates. 51 * @fb_width: width of a framebuffer. 52 * @fb_height: height of a framebuffer. 53 * @src_width: width of a partial image to be displayed from framebuffer. 54 * @src_height: height of a partial image to be displayed from framebuffer. 55 * @crtc_x: offset x on hardware screen. 56 * @crtc_y: offset y on hardware screen. 57 * @crtc_width: window width to be displayed (hardware screen). 58 * @crtc_height: window height to be displayed (hardware screen). 59 * @mode_width: width of screen mode. 60 * @mode_height: height of screen mode. 61 * @refresh: refresh rate. 62 * @scan_flag: interlace or progressive way. 63 * (it could be DRM_MODE_FLAG_*) 64 * @bpp: pixel size.(in bit) 65 * @pixel_format: fourcc pixel format of this overlay 66 * @dma_addr: array of bus(accessed by dma) address to the memory region 67 * allocated for a overlay. 68 * @zpos: order of overlay layer(z position). 69 * @index_color: if using color key feature then this value would be used 70 * as index color. 71 * @default_win: a window to be enabled. 72 * @color_key: color key on or off. 73 * @local_path: in case of lcd type, local path mode on or off. 74 * @transparency: transparency on or off. 75 * @activated: activated or not. 76 * 77 * this structure is common to exynos SoC and its contents would be copied 78 * to hardware specific overlay info. 79 */ 80 struct exynos_drm_overlay { 81 unsigned int fb_x; 82 unsigned int fb_y; 83 unsigned int fb_width; 84 unsigned int fb_height; 85 unsigned int src_width; 86 unsigned int src_height; 87 unsigned int crtc_x; 88 unsigned int crtc_y; 89 unsigned int crtc_width; 90 unsigned int crtc_height; 91 unsigned int mode_width; 92 unsigned int mode_height; 93 unsigned int refresh; 94 unsigned int scan_flag; 95 unsigned int bpp; 96 unsigned int pitch; 97 uint32_t pixel_format; 98 dma_addr_t dma_addr[MAX_FB_BUFFER]; 99 int zpos; 100 unsigned int index_color; 101 102 bool default_win:1; 103 bool color_key:1; 104 bool local_path:1; 105 bool transparency:1; 106 bool activated:1; 107 }; 108 109 /* 110 * Exynos DRM Display Structure. 111 * - this structure is common to analog tv, digital tv and lcd panel. 112 * 113 * @create_connector: initialize and register a new connector 114 * @remove: cleans up the display for removal 115 * @mode_fixup: fix mode data comparing to hw specific display mode. 116 * @mode_set: convert drm_display_mode to hw specific display mode and 117 * would be called by encoder->mode_set(). 118 * @check_mode: check if mode is valid or not. 119 * @dpms: display device on or off. 120 * @commit: apply changes to hw 121 */ 122 struct exynos_drm_display; 123 struct exynos_drm_display_ops { 124 int (*create_connector)(struct exynos_drm_display *display, 125 struct drm_encoder *encoder); 126 void (*remove)(struct exynos_drm_display *display); 127 void (*mode_fixup)(struct exynos_drm_display *display, 128 struct drm_connector *connector, 129 const struct drm_display_mode *mode, 130 struct drm_display_mode *adjusted_mode); 131 void (*mode_set)(struct exynos_drm_display *display, 132 struct drm_display_mode *mode); 133 int (*check_mode)(struct exynos_drm_display *display, 134 struct drm_display_mode *mode); 135 void (*dpms)(struct exynos_drm_display *display, int mode); 136 void (*commit)(struct exynos_drm_display *display); 137 }; 138 139 /* 140 * Exynos drm display structure, maps 1:1 with an encoder/connector 141 * 142 * @list: the list entry for this manager 143 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 144 * @encoder: encoder object this display maps to 145 * @connector: connector object this display maps to 146 * @ops: pointer to callbacks for exynos drm specific functionality 147 * @ctx: A pointer to the display's implementation specific context 148 */ 149 struct exynos_drm_display { 150 struct list_head list; 151 enum exynos_drm_output_type type; 152 struct drm_encoder *encoder; 153 struct drm_connector *connector; 154 struct exynos_drm_display_ops *ops; 155 }; 156 157 /* 158 * Exynos drm manager ops 159 * 160 * @dpms: control device power. 161 * @mode_fixup: fix mode data before applying it 162 * @mode_set: set the given mode to the manager 163 * @commit: set current hw specific display mode to hw. 164 * @enable_vblank: specific driver callback for enabling vblank interrupt. 165 * @disable_vblank: specific driver callback for disabling vblank interrupt. 166 * @wait_for_vblank: wait for vblank interrupt to make sure that 167 * hardware overlay is updated. 168 * @win_mode_set: copy drm overlay info to hw specific overlay info. 169 * @win_commit: apply hardware specific overlay data to registers. 170 * @win_enable: enable hardware specific overlay. 171 * @win_disable: disable hardware specific overlay. 172 * @te_handler: trigger to transfer video image at the tearing effect 173 * synchronization signal if there is a page flip request. 174 */ 175 struct exynos_drm_manager; 176 struct exynos_drm_manager_ops { 177 void (*dpms)(struct exynos_drm_manager *mgr, int mode); 178 bool (*mode_fixup)(struct exynos_drm_manager *mgr, 179 const struct drm_display_mode *mode, 180 struct drm_display_mode *adjusted_mode); 181 void (*mode_set)(struct exynos_drm_manager *mgr, 182 const struct drm_display_mode *mode); 183 void (*commit)(struct exynos_drm_manager *mgr); 184 int (*enable_vblank)(struct exynos_drm_manager *mgr); 185 void (*disable_vblank)(struct exynos_drm_manager *mgr); 186 void (*wait_for_vblank)(struct exynos_drm_manager *mgr); 187 void (*win_mode_set)(struct exynos_drm_manager *mgr, 188 struct exynos_drm_overlay *overlay); 189 void (*win_commit)(struct exynos_drm_manager *mgr, int zpos); 190 void (*win_enable)(struct exynos_drm_manager *mgr, int zpos); 191 void (*win_disable)(struct exynos_drm_manager *mgr, int zpos); 192 void (*te_handler)(struct exynos_drm_manager *mgr); 193 }; 194 195 /* 196 * Exynos drm common manager structure, maps 1:1 with a crtc 197 * 198 * @list: the list entry for this manager 199 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 200 * @drm_dev: pointer to the drm device 201 * @crtc: crtc object. 202 * @pipe: the pipe number for this crtc/manager 203 * @ops: pointer to callbacks for exynos drm specific functionality 204 * @ctx: A pointer to the manager's implementation specific context 205 */ 206 struct exynos_drm_manager { 207 struct list_head list; 208 enum exynos_drm_output_type type; 209 struct drm_device *drm_dev; 210 struct drm_crtc *crtc; 211 int pipe; 212 struct exynos_drm_manager_ops *ops; 213 }; 214 215 struct exynos_drm_g2d_private { 216 struct device *dev; 217 struct list_head inuse_cmdlist; 218 struct list_head event_list; 219 struct list_head userptr_list; 220 }; 221 222 struct drm_exynos_file_private { 223 struct exynos_drm_g2d_private *g2d_priv; 224 struct device *ipp_dev; 225 }; 226 227 /* 228 * Exynos drm private structure. 229 * 230 * @da_start: start address to device address space. 231 * with iommu, device address space starts from this address 232 * otherwise default one. 233 * @da_space_size: size of device address space. 234 * if 0 then default value is used for it. 235 * @pipe: the pipe number for this crtc/manager. 236 */ 237 struct exynos_drm_private { 238 struct drm_fb_helper *fb_helper; 239 240 /* list head for new event to be added. */ 241 struct list_head pageflip_event_list; 242 243 /* 244 * created crtc object would be contained at this array and 245 * this array is used to be aware of which crtc did it request vblank. 246 */ 247 struct drm_crtc *crtc[MAX_CRTC]; 248 struct drm_property *plane_zpos_property; 249 struct drm_property *crtc_mode_property; 250 251 unsigned long da_start; 252 unsigned long da_space_size; 253 254 unsigned int pipe; 255 }; 256 257 /* 258 * Exynos drm sub driver structure. 259 * 260 * @list: sub driver has its own list object to register to exynos drm driver. 261 * @dev: pointer to device object for subdrv device driver. 262 * @drm_dev: pointer to drm_device and this pointer would be set 263 * when sub driver calls exynos_drm_subdrv_register(). 264 * @probe: this callback would be called by exynos drm driver after 265 * subdrv is registered to it. 266 * @remove: this callback is used to release resources created 267 * by probe callback. 268 * @open: this would be called with drm device file open. 269 * @close: this would be called with drm device file close. 270 */ 271 struct exynos_drm_subdrv { 272 struct list_head list; 273 struct device *dev; 274 struct drm_device *drm_dev; 275 276 int (*probe)(struct drm_device *drm_dev, struct device *dev); 277 void (*remove)(struct drm_device *drm_dev, struct device *dev); 278 int (*open)(struct drm_device *drm_dev, struct device *dev, 279 struct drm_file *file); 280 void (*close)(struct drm_device *drm_dev, struct device *dev, 281 struct drm_file *file); 282 }; 283 284 /* This function would be called by non kms drivers such as g2d and ipp. */ 285 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); 286 287 /* this function removes subdrv list from exynos drm driver */ 288 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); 289 290 int exynos_drm_device_subdrv_probe(struct drm_device *dev); 291 int exynos_drm_device_subdrv_remove(struct drm_device *dev); 292 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); 293 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); 294 295 #ifdef CONFIG_DRM_EXYNOS_IPP 296 int exynos_platform_device_ipp_register(void); 297 void exynos_platform_device_ipp_unregister(void); 298 #else 299 static inline int exynos_platform_device_ipp_register(void) { return 0; } 300 static inline void exynos_platform_device_ipp_unregister(void) {} 301 #endif 302 303 304 #ifdef CONFIG_DRM_EXYNOS_DPI 305 struct exynos_drm_display * exynos_dpi_probe(struct device *dev); 306 int exynos_dpi_remove(struct exynos_drm_display *display); 307 #else 308 static inline struct exynos_drm_display * 309 exynos_dpi_probe(struct device *dev) { return NULL; } 310 static inline int exynos_dpi_remove(struct exynos_drm_display *display) 311 { 312 return 0; 313 } 314 #endif 315 316 #ifdef CONFIG_DRM_EXYNOS_VIDI 317 int exynos_drm_probe_vidi(void); 318 void exynos_drm_remove_vidi(void); 319 #else 320 static inline int exynos_drm_probe_vidi(void) { return 0; } 321 static inline void exynos_drm_remove_vidi(void) {} 322 #endif 323 324 /* This function creates a encoder and a connector, and initializes them. */ 325 int exynos_drm_create_enc_conn(struct drm_device *dev, 326 struct exynos_drm_display *display); 327 328 int exynos_drm_component_add(struct device *dev, 329 enum exynos_drm_device_type dev_type, 330 enum exynos_drm_output_type out_type); 331 332 void exynos_drm_component_del(struct device *dev, 333 enum exynos_drm_device_type dev_type); 334 335 extern struct platform_driver fimd_driver; 336 extern struct platform_driver dp_driver; 337 extern struct platform_driver dsi_driver; 338 extern struct platform_driver mixer_driver; 339 extern struct platform_driver hdmi_driver; 340 extern struct platform_driver exynos_drm_common_hdmi_driver; 341 extern struct platform_driver vidi_driver; 342 extern struct platform_driver g2d_driver; 343 extern struct platform_driver fimc_driver; 344 extern struct platform_driver rotator_driver; 345 extern struct platform_driver gsc_driver; 346 extern struct platform_driver ipp_driver; 347 #endif 348