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 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the next 17 * paragraph) shall be included in all copies or substantial portions of the 18 * Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 */ 28 29 #ifndef _EXYNOS_DRM_DRV_H_ 30 #define _EXYNOS_DRM_DRV_H_ 31 32 #include <linux/module.h> 33 #include "drm.h" 34 35 #define MAX_CRTC 3 36 #define MAX_PLANE 5 37 #define MAX_FB_BUFFER 4 38 #define DEFAULT_ZPOS -1 39 40 struct drm_device; 41 struct exynos_drm_overlay; 42 struct drm_connector; 43 44 extern unsigned int drm_vblank_offdelay; 45 46 /* this enumerates display type. */ 47 enum exynos_drm_output_type { 48 EXYNOS_DISPLAY_TYPE_NONE, 49 /* RGB or CPU Interface. */ 50 EXYNOS_DISPLAY_TYPE_LCD, 51 /* HDMI Interface. */ 52 EXYNOS_DISPLAY_TYPE_HDMI, 53 /* Virtual Display Interface. */ 54 EXYNOS_DISPLAY_TYPE_VIDI, 55 }; 56 57 /* 58 * Exynos drm overlay ops structure. 59 * 60 * @mode_set: copy drm overlay info to hw specific overlay info. 61 * @commit: apply hardware specific overlay data to registers. 62 * @enable: enable hardware specific overlay. 63 * @disable: disable hardware specific overlay. 64 */ 65 struct exynos_drm_overlay_ops { 66 void (*mode_set)(struct device *subdrv_dev, 67 struct exynos_drm_overlay *overlay); 68 void (*commit)(struct device *subdrv_dev, int zpos); 69 void (*enable)(struct device *subdrv_dev, int zpos); 70 void (*disable)(struct device *subdrv_dev, int zpos); 71 }; 72 73 /* 74 * Exynos drm common overlay structure. 75 * 76 * @fb_x: offset x on a framebuffer to be displayed. 77 * - the unit is screen coordinates. 78 * @fb_y: offset y on a framebuffer to be displayed. 79 * - the unit is screen coordinates. 80 * @fb_width: width of a framebuffer. 81 * @fb_height: height of a framebuffer. 82 * @src_width: width of a partial image to be displayed from framebuffer. 83 * @src_height: height of a partial image to be displayed from framebuffer. 84 * @crtc_x: offset x on hardware screen. 85 * @crtc_y: offset y on hardware screen. 86 * @crtc_width: window width to be displayed (hardware screen). 87 * @crtc_height: window height to be displayed (hardware screen). 88 * @mode_width: width of screen mode. 89 * @mode_height: height of screen mode. 90 * @refresh: refresh rate. 91 * @scan_flag: interlace or progressive way. 92 * (it could be DRM_MODE_FLAG_*) 93 * @bpp: pixel size.(in bit) 94 * @pixel_format: fourcc pixel format of this overlay 95 * @dma_addr: array of bus(accessed by dma) address to the memory region 96 * allocated for a overlay. 97 * @vaddr: array of virtual memory addresss to this overlay. 98 * @zpos: order of overlay layer(z position). 99 * @default_win: a window to be enabled. 100 * @color_key: color key on or off. 101 * @index_color: if using color key feature then this value would be used 102 * as index color. 103 * @local_path: in case of lcd type, local path mode on or off. 104 * @transparency: transparency on or off. 105 * @activated: activated or not. 106 * 107 * this structure is common to exynos SoC and its contents would be copied 108 * to hardware specific overlay info. 109 */ 110 struct exynos_drm_overlay { 111 unsigned int fb_x; 112 unsigned int fb_y; 113 unsigned int fb_width; 114 unsigned int fb_height; 115 unsigned int src_width; 116 unsigned int src_height; 117 unsigned int crtc_x; 118 unsigned int crtc_y; 119 unsigned int crtc_width; 120 unsigned int crtc_height; 121 unsigned int mode_width; 122 unsigned int mode_height; 123 unsigned int refresh; 124 unsigned int scan_flag; 125 unsigned int bpp; 126 unsigned int pitch; 127 uint32_t pixel_format; 128 dma_addr_t dma_addr[MAX_FB_BUFFER]; 129 void __iomem *vaddr[MAX_FB_BUFFER]; 130 int zpos; 131 132 bool default_win; 133 bool color_key; 134 unsigned int index_color; 135 bool local_path; 136 bool transparency; 137 bool activated; 138 }; 139 140 /* 141 * Exynos DRM Display Structure. 142 * - this structure is common to analog tv, digital tv and lcd panel. 143 * 144 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 145 * @is_connected: check for that display is connected or not. 146 * @get_edid: get edid modes from display driver. 147 * @get_panel: get panel object from display driver. 148 * @check_timing: check if timing is valid or not. 149 * @power_on: display device on or off. 150 */ 151 struct exynos_drm_display_ops { 152 enum exynos_drm_output_type type; 153 bool (*is_connected)(struct device *dev); 154 int (*get_edid)(struct device *dev, struct drm_connector *connector, 155 u8 *edid, int len); 156 void *(*get_panel)(struct device *dev); 157 int (*check_timing)(struct device *dev, void *timing); 158 int (*power_on)(struct device *dev, int mode); 159 }; 160 161 /* 162 * Exynos drm manager ops 163 * 164 * @dpms: control device power. 165 * @apply: set timing, vblank and overlay data to registers. 166 * @mode_fixup: fix mode data comparing to hw specific display mode. 167 * @mode_set: convert drm_display_mode to hw specific display mode and 168 * would be called by encoder->mode_set(). 169 * @get_max_resol: get maximum resolution to specific hardware. 170 * @commit: set current hw specific display mode to hw. 171 * @enable_vblank: specific driver callback for enabling vblank interrupt. 172 * @disable_vblank: specific driver callback for disabling vblank interrupt. 173 */ 174 struct exynos_drm_manager_ops { 175 void (*dpms)(struct device *subdrv_dev, int mode); 176 void (*apply)(struct device *subdrv_dev); 177 void (*mode_fixup)(struct device *subdrv_dev, 178 struct drm_connector *connector, 179 const struct drm_display_mode *mode, 180 struct drm_display_mode *adjusted_mode); 181 void (*mode_set)(struct device *subdrv_dev, void *mode); 182 void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width, 183 unsigned int *height); 184 void (*commit)(struct device *subdrv_dev); 185 int (*enable_vblank)(struct device *subdrv_dev); 186 void (*disable_vblank)(struct device *subdrv_dev); 187 }; 188 189 /* 190 * Exynos drm common manager structure. 191 * 192 * @dev: pointer to device object for subdrv device driver. 193 * sub drivers such as display controller or hdmi driver, 194 * have their own device object. 195 * @ops: pointer to callbacks for exynos drm specific framebuffer. 196 * these callbacks should be set by specific drivers such fimd 197 * or hdmi driver and are used to control hardware global registers. 198 * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer. 199 * these callbacks should be set by specific drivers such fimd 200 * or hdmi driver and are used to control hardware overlay reigsters. 201 * @display: pointer to callbacks for exynos drm specific framebuffer. 202 * these callbacks should be set by specific drivers such fimd 203 * or hdmi driver and are used to control display devices such as 204 * analog tv, digital tv and lcd panel and also get timing data for them. 205 */ 206 struct exynos_drm_manager { 207 struct device *dev; 208 int pipe; 209 struct exynos_drm_manager_ops *ops; 210 struct exynos_drm_overlay_ops *overlay_ops; 211 struct exynos_drm_display_ops *display_ops; 212 }; 213 214 struct exynos_drm_g2d_private { 215 struct device *dev; 216 struct list_head inuse_cmdlist; 217 struct list_head event_list; 218 struct list_head gem_list; 219 unsigned int gem_nr; 220 }; 221 222 struct drm_exynos_file_private { 223 struct exynos_drm_g2d_private *g2d_priv; 224 }; 225 226 /* 227 * Exynos drm private structure. 228 */ 229 struct exynos_drm_private { 230 struct drm_fb_helper *fb_helper; 231 232 /* list head for new event to be added. */ 233 struct list_head pageflip_event_list; 234 235 /* 236 * created crtc object would be contained at this array and 237 * this array is used to be aware of which crtc did it request vblank. 238 */ 239 struct drm_crtc *crtc[MAX_CRTC]; 240 struct drm_property *plane_zpos_property; 241 struct drm_property *crtc_mode_property; 242 }; 243 244 /* 245 * Exynos drm sub driver structure. 246 * 247 * @list: sub driver has its own list object to register to exynos drm driver. 248 * @dev: pointer to device object for subdrv device driver. 249 * @drm_dev: pointer to drm_device and this pointer would be set 250 * when sub driver calls exynos_drm_subdrv_register(). 251 * @manager: subdrv has its own manager to control a hardware appropriately 252 * and we can access a hardware drawing on this manager. 253 * @probe: this callback would be called by exynos drm driver after 254 * subdrv is registered to it. 255 * @remove: this callback is used to release resources created 256 * by probe callback. 257 * @open: this would be called with drm device file open. 258 * @close: this would be called with drm device file close. 259 * @encoder: encoder object owned by this sub driver. 260 * @connector: connector object owned by this sub driver. 261 */ 262 struct exynos_drm_subdrv { 263 struct list_head list; 264 struct device *dev; 265 struct drm_device *drm_dev; 266 struct exynos_drm_manager *manager; 267 268 int (*probe)(struct drm_device *drm_dev, struct device *dev); 269 void (*remove)(struct drm_device *dev); 270 int (*open)(struct drm_device *drm_dev, struct device *dev, 271 struct drm_file *file); 272 void (*close)(struct drm_device *drm_dev, struct device *dev, 273 struct drm_file *file); 274 275 struct drm_encoder *encoder; 276 struct drm_connector *connector; 277 }; 278 279 /* 280 * this function calls a probe callback registered to sub driver list and 281 * create its own encoder and connector and then set drm_device object 282 * to global one. 283 */ 284 int exynos_drm_device_register(struct drm_device *dev); 285 /* 286 * this function calls a remove callback registered to sub driver list and 287 * destroy its own encoder and connetor. 288 */ 289 int exynos_drm_device_unregister(struct drm_device *dev); 290 291 /* 292 * this function would be called by sub drivers such as display controller 293 * or hdmi driver to register this sub driver object to exynos drm driver 294 * and when a sub driver is registered to exynos drm driver a probe callback 295 * of the sub driver is called and creates its own encoder and connector. 296 */ 297 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); 298 299 /* this function removes subdrv list from exynos drm driver */ 300 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); 301 302 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); 303 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); 304 305 extern struct platform_driver fimd_driver; 306 extern struct platform_driver hdmi_driver; 307 extern struct platform_driver mixer_driver; 308 extern struct platform_driver exynos_drm_common_hdmi_driver; 309 extern struct platform_driver vidi_driver; 310 extern struct platform_driver g2d_driver; 311 #endif 312