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 40struct drm_device; 41struct exynos_drm_overlay; 42struct drm_connector; 43 44extern unsigned int drm_vblank_offdelay; 45 46/* this enumerates display type. */ 47enum 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 * @disable: disable hardware specific overlay. 63 */ 64struct exynos_drm_overlay_ops { 65 void (*mode_set)(struct device *subdrv_dev, 66 struct exynos_drm_overlay *overlay); 67 void (*commit)(struct device *subdrv_dev, int zpos); 68 void (*disable)(struct device *subdrv_dev, int zpos); 69}; 70 71/* 72 * Exynos drm common overlay structure. 73 * 74 * @fb_x: offset x on a framebuffer to be displayed. 75 * - the unit is screen coordinates. 76 * @fb_y: offset y on a framebuffer to be displayed. 77 * - the unit is screen coordinates. 78 * @fb_width: width of a framebuffer. 79 * @fb_height: height of a framebuffer. 80 * @src_width: width of a partial image to be displayed from framebuffer. 81 * @src_height: height of a partial image to be displayed from framebuffer. 82 * @crtc_x: offset x on hardware screen. 83 * @crtc_y: offset y on hardware screen. 84 * @crtc_width: window width to be displayed (hardware screen). 85 * @crtc_height: window height to be displayed (hardware screen). 86 * @mode_width: width of screen mode. 87 * @mode_height: height of screen mode. 88 * @refresh: refresh rate. 89 * @scan_flag: interlace or progressive way. 90 * (it could be DRM_MODE_FLAG_*) 91 * @bpp: pixel size.(in bit) 92 * @pixel_format: fourcc pixel format of this overlay 93 * @dma_addr: array of bus(accessed by dma) address to the memory region 94 * allocated for a overlay. 95 * @vaddr: array of virtual memory addresss to this overlay. 96 * @zpos: order of overlay layer(z position). 97 * @default_win: a window to be enabled. 98 * @color_key: color key on or off. 99 * @index_color: if using color key feature then this value would be used 100 * as index color. 101 * @local_path: in case of lcd type, local path mode on or off. 102 * @transparency: transparency on or off. 103 * @activated: activated or not. 104 * 105 * this structure is common to exynos SoC and its contents would be copied 106 * to hardware specific overlay info. 107 */ 108struct exynos_drm_overlay { 109 unsigned int fb_x; 110 unsigned int fb_y; 111 unsigned int fb_width; 112 unsigned int fb_height; 113 unsigned int src_width; 114 unsigned int src_height; 115 unsigned int crtc_x; 116 unsigned int crtc_y; 117 unsigned int crtc_width; 118 unsigned int crtc_height; 119 unsigned int mode_width; 120 unsigned int mode_height; 121 unsigned int refresh; 122 unsigned int scan_flag; 123 unsigned int bpp; 124 unsigned int pitch; 125 uint32_t pixel_format; 126 dma_addr_t dma_addr[MAX_FB_BUFFER]; 127 void __iomem *vaddr[MAX_FB_BUFFER]; 128 int zpos; 129 130 bool default_win; 131 bool color_key; 132 unsigned int index_color; 133 bool local_path; 134 bool transparency; 135 bool activated; 136}; 137 138/* 139 * Exynos DRM Display Structure. 140 * - this structure is common to analog tv, digital tv and lcd panel. 141 * 142 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 143 * @is_connected: check for that display is connected or not. 144 * @get_edid: get edid modes from display driver. 145 * @get_panel: get panel object from display driver. 146 * @check_timing: check if timing is valid or not. 147 * @power_on: display device on or off. 148 */ 149struct exynos_drm_display_ops { 150 enum exynos_drm_output_type type; 151 bool (*is_connected)(struct device *dev); 152 int (*get_edid)(struct device *dev, struct drm_connector *connector, 153 u8 *edid, int len); 154 void *(*get_panel)(struct device *dev); 155 int (*check_timing)(struct device *dev, void *timing); 156 int (*power_on)(struct device *dev, int mode); 157}; 158 159/* 160 * Exynos drm manager ops 161 * 162 * @dpms: control device power. 163 * @apply: set timing, vblank and overlay data to registers. 164 * @mode_fixup: fix mode data comparing to hw specific display mode. 165 * @mode_set: convert drm_display_mode to hw specific display mode and 166 * would be called by encoder->mode_set(). 167 * @get_max_resol: get maximum resolution to specific hardware. 168 * @commit: set current hw specific display mode to hw. 169 * @enable_vblank: specific driver callback for enabling vblank interrupt. 170 * @disable_vblank: specific driver callback for disabling vblank interrupt. 171 */ 172struct exynos_drm_manager_ops { 173 void (*dpms)(struct device *subdrv_dev, int mode); 174 void (*apply)(struct device *subdrv_dev); 175 void (*mode_fixup)(struct device *subdrv_dev, 176 struct drm_connector *connector, 177 struct drm_display_mode *mode, 178 struct drm_display_mode *adjusted_mode); 179 void (*mode_set)(struct device *subdrv_dev, void *mode); 180 void (*get_max_resol)(struct device *subdrv_dev, unsigned int *width, 181 unsigned int *height); 182 void (*commit)(struct device *subdrv_dev); 183 int (*enable_vblank)(struct device *subdrv_dev); 184 void (*disable_vblank)(struct device *subdrv_dev); 185}; 186 187/* 188 * Exynos drm common manager structure. 189 * 190 * @dev: pointer to device object for subdrv device driver. 191 * sub drivers such as display controller or hdmi driver, 192 * have their own device object. 193 * @ops: pointer to callbacks for exynos drm specific framebuffer. 194 * these callbacks should be set by specific drivers such fimd 195 * or hdmi driver and are used to control hardware global registers. 196 * @overlay_ops: pointer to callbacks for exynos drm specific framebuffer. 197 * these callbacks should be set by specific drivers such fimd 198 * or hdmi driver and are used to control hardware overlay reigsters. 199 * @display: pointer to callbacks for exynos drm specific framebuffer. 200 * these callbacks should be set by specific drivers such fimd 201 * or hdmi driver and are used to control display devices such as 202 * analog tv, digital tv and lcd panel and also get timing data for them. 203 */ 204struct exynos_drm_manager { 205 struct device *dev; 206 int pipe; 207 struct exynos_drm_manager_ops *ops; 208 struct exynos_drm_overlay_ops *overlay_ops; 209 struct exynos_drm_display_ops *display_ops; 210}; 211 212struct exynos_drm_g2d_private { 213 struct device *dev; 214 struct list_head inuse_cmdlist; 215 struct list_head event_list; 216 struct list_head gem_list; 217 unsigned int gem_nr; 218}; 219 220struct drm_exynos_file_private { 221 struct exynos_drm_g2d_private *g2d_priv; 222}; 223 224/* 225 * Exynos drm private structure. 226 */ 227struct exynos_drm_private { 228 struct drm_fb_helper *fb_helper; 229 230 /* list head for new event to be added. */ 231 struct list_head pageflip_event_list; 232 233 /* 234 * created crtc object would be contained at this array and 235 * this array is used to be aware of which crtc did it request vblank. 236 */ 237 struct drm_crtc *crtc[MAX_CRTC]; 238}; 239 240/* 241 * Exynos drm sub driver structure. 242 * 243 * @list: sub driver has its own list object to register to exynos drm driver. 244 * @dev: pointer to device object for subdrv device driver. 245 * @drm_dev: pointer to drm_device and this pointer would be set 246 * when sub driver calls exynos_drm_subdrv_register(). 247 * @manager: subdrv has its own manager to control a hardware appropriately 248 * and we can access a hardware drawing on this manager. 249 * @probe: this callback would be called by exynos drm driver after 250 * subdrv is registered to it. 251 * @remove: this callback is used to release resources created 252 * by probe callback. 253 * @open: this would be called with drm device file open. 254 * @close: this would be called with drm device file close. 255 * @encoder: encoder object owned by this sub driver. 256 * @connector: connector object owned by this sub driver. 257 */ 258struct exynos_drm_subdrv { 259 struct list_head list; 260 struct device *dev; 261 struct drm_device *drm_dev; 262 struct exynos_drm_manager *manager; 263 264 int (*probe)(struct drm_device *drm_dev, struct device *dev); 265 void (*remove)(struct drm_device *dev); 266 int (*open)(struct drm_device *drm_dev, struct device *dev, 267 struct drm_file *file); 268 void (*close)(struct drm_device *drm_dev, struct device *dev, 269 struct drm_file *file); 270 271 struct drm_encoder *encoder; 272 struct drm_connector *connector; 273}; 274 275/* 276 * this function calls a probe callback registered to sub driver list and 277 * create its own encoder and connector and then set drm_device object 278 * to global one. 279 */ 280int exynos_drm_device_register(struct drm_device *dev); 281/* 282 * this function calls a remove callback registered to sub driver list and 283 * destroy its own encoder and connetor. 284 */ 285int exynos_drm_device_unregister(struct drm_device *dev); 286 287/* 288 * this function would be called by sub drivers such as display controller 289 * or hdmi driver to register this sub driver object to exynos drm driver 290 * and when a sub driver is registered to exynos drm driver a probe callback 291 * of the sub driver is called and creates its own encoder and connector. 292 */ 293int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); 294 295/* this function removes subdrv list from exynos drm driver */ 296int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); 297 298int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); 299void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); 300 301extern struct platform_driver fimd_driver; 302extern struct platform_driver hdmi_driver; 303extern struct platform_driver mixer_driver; 304extern struct platform_driver exynos_drm_common_hdmi_driver; 305extern struct platform_driver vidi_driver; 306extern struct platform_driver g2d_driver; 307#endif 308