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 to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base) 26 #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base) 27 28 /* this enumerates display type. */ 29 enum exynos_drm_output_type { 30 EXYNOS_DISPLAY_TYPE_NONE, 31 /* RGB or CPU Interface. */ 32 EXYNOS_DISPLAY_TYPE_LCD, 33 /* HDMI Interface. */ 34 EXYNOS_DISPLAY_TYPE_HDMI, 35 /* Virtual Display Interface. */ 36 EXYNOS_DISPLAY_TYPE_VIDI, 37 }; 38 39 /* 40 * Exynos drm common overlay structure. 41 * 42 * @base: plane object 43 * @src_x: offset x on a framebuffer to be displayed. 44 * - the unit is screen coordinates. 45 * @src_y: offset y on a framebuffer to be displayed. 46 * - the unit is screen coordinates. 47 * @src_width: width of a partial image to be displayed from framebuffer. 48 * @src_height: height of a partial image to be displayed from framebuffer. 49 * @fb_width: width of a framebuffer. 50 * @fb_height: height of a framebuffer. 51 * @crtc_x: offset x on hardware screen. 52 * @crtc_y: offset y on hardware screen. 53 * @crtc_width: window width to be displayed (hardware screen). 54 * @crtc_height: window height to be displayed (hardware screen). 55 * @mode_width: width of screen mode. 56 * @mode_height: height of screen mode. 57 * @h_ratio: horizontal scaling ratio, 16.16 fixed point 58 * @v_ratio: vertical scaling ratio, 16.16 fixed point 59 * @refresh: refresh rate. 60 * @scan_flag: interlace or progressive way. 61 * (it could be DRM_MODE_FLAG_*) 62 * @bpp: pixel size.(in bit) 63 * @pixel_format: fourcc pixel format of this overlay 64 * @dma_addr: array of bus(accessed by dma) address to the memory region 65 * allocated for a overlay. 66 * @zpos: order of overlay layer(z position). 67 * 68 * this structure is common to exynos SoC and its contents would be copied 69 * to hardware specific overlay info. 70 */ 71 72 struct exynos_drm_plane { 73 struct drm_plane base; 74 unsigned int src_x; 75 unsigned int src_y; 76 unsigned int src_width; 77 unsigned int src_height; 78 unsigned int fb_width; 79 unsigned int fb_height; 80 unsigned int crtc_x; 81 unsigned int crtc_y; 82 unsigned int crtc_width; 83 unsigned int crtc_height; 84 unsigned int mode_width; 85 unsigned int mode_height; 86 unsigned int h_ratio; 87 unsigned int v_ratio; 88 unsigned int refresh; 89 unsigned int scan_flag; 90 unsigned int bpp; 91 unsigned int pitch; 92 uint32_t pixel_format; 93 dma_addr_t dma_addr[MAX_FB_BUFFER]; 94 unsigned int zpos; 95 }; 96 97 /* 98 * Exynos DRM Display Structure. 99 * - this structure is common to analog tv, digital tv and lcd panel. 100 * 101 * @create_connector: initialize and register a new connector 102 * @remove: cleans up the display for removal 103 * @mode_fixup: fix mode data comparing to hw specific display mode. 104 * @mode_set: convert drm_display_mode to hw specific display mode and 105 * would be called by encoder->mode_set(). 106 * @check_mode: check if mode is valid or not. 107 * @dpms: display device on or off. 108 * @commit: apply changes to hw 109 */ 110 struct exynos_drm_display; 111 struct exynos_drm_display_ops { 112 int (*create_connector)(struct exynos_drm_display *display, 113 struct drm_encoder *encoder); 114 void (*remove)(struct exynos_drm_display *display); 115 void (*mode_fixup)(struct exynos_drm_display *display, 116 struct drm_connector *connector, 117 const struct drm_display_mode *mode, 118 struct drm_display_mode *adjusted_mode); 119 void (*mode_set)(struct exynos_drm_display *display, 120 struct drm_display_mode *mode); 121 int (*check_mode)(struct exynos_drm_display *display, 122 struct drm_display_mode *mode); 123 void (*dpms)(struct exynos_drm_display *display, int mode); 124 void (*commit)(struct exynos_drm_display *display); 125 }; 126 127 /* 128 * Exynos drm display structure, maps 1:1 with an encoder/connector 129 * 130 * @list: the list entry for this manager 131 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 132 * @encoder: encoder object this display maps to 133 * @connector: connector object this display maps to 134 * @ops: pointer to callbacks for exynos drm specific functionality 135 * @ctx: A pointer to the display's implementation specific context 136 */ 137 struct exynos_drm_display { 138 struct list_head list; 139 enum exynos_drm_output_type type; 140 struct drm_encoder *encoder; 141 struct drm_connector *connector; 142 struct exynos_drm_display_ops *ops; 143 }; 144 145 /* 146 * Exynos drm crtc ops 147 * 148 * @enable: enable the device 149 * @disable: disable the device 150 * @mode_fixup: fix mode data before applying it 151 * @commit: set current hw specific display mode to hw. 152 * @enable_vblank: specific driver callback for enabling vblank interrupt. 153 * @disable_vblank: specific driver callback for disabling vblank interrupt. 154 * @wait_for_vblank: wait for vblank interrupt to make sure that 155 * hardware overlay is updated. 156 * @win_commit: apply hardware specific overlay data to registers. 157 * @win_disable: disable hardware specific overlay. 158 * @te_handler: trigger to transfer video image at the tearing effect 159 * synchronization signal if there is a page flip request. 160 * @clock_enable: optional function enabling/disabling display domain clock, 161 * called from exynos-dp driver before powering up (with 162 * 'enable' argument as true) and after powering down (with 163 * 'enable' as false). 164 */ 165 struct exynos_drm_crtc; 166 struct exynos_drm_crtc_ops { 167 void (*enable)(struct exynos_drm_crtc *crtc); 168 void (*disable)(struct exynos_drm_crtc *crtc); 169 bool (*mode_fixup)(struct exynos_drm_crtc *crtc, 170 const struct drm_display_mode *mode, 171 struct drm_display_mode *adjusted_mode); 172 void (*commit)(struct exynos_drm_crtc *crtc); 173 int (*enable_vblank)(struct exynos_drm_crtc *crtc); 174 void (*disable_vblank)(struct exynos_drm_crtc *crtc); 175 void (*wait_for_vblank)(struct exynos_drm_crtc *crtc); 176 void (*win_commit)(struct exynos_drm_crtc *crtc, unsigned int zpos); 177 void (*win_disable)(struct exynos_drm_crtc *crtc, unsigned int zpos); 178 void (*te_handler)(struct exynos_drm_crtc *crtc); 179 void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable); 180 void (*clear_channels)(struct exynos_drm_crtc *crtc); 181 }; 182 183 /* 184 * Exynos specific crtc structure. 185 * 186 * @base: crtc object. 187 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 188 * @pipe: a crtc index created at load() with a new crtc object creation 189 * and the crtc object would be set to private->crtc array 190 * to get a crtc object corresponding to this pipe from private->crtc 191 * array when irq interrupt occurred. the reason of using this pipe is that 192 * drm framework doesn't support multiple irq yet. 193 * we can refer to the crtc to current hardware interrupt occurred through 194 * this pipe value. 195 * @enabled: if the crtc is enabled or not 196 * @event: vblank event that is currently queued for flip 197 * @ops: pointer to callbacks for exynos drm specific functionality 198 * @ctx: A pointer to the crtc's implementation specific context 199 */ 200 struct exynos_drm_crtc { 201 struct drm_crtc base; 202 enum exynos_drm_output_type type; 203 unsigned int pipe; 204 bool enabled; 205 wait_queue_head_t pending_flip_queue; 206 struct drm_pending_vblank_event *event; 207 const struct exynos_drm_crtc_ops *ops; 208 void *ctx; 209 }; 210 211 struct exynos_drm_g2d_private { 212 struct device *dev; 213 struct list_head inuse_cmdlist; 214 struct list_head event_list; 215 struct list_head userptr_list; 216 }; 217 218 struct drm_exynos_file_private { 219 struct exynos_drm_g2d_private *g2d_priv; 220 struct device *ipp_dev; 221 }; 222 223 /* 224 * Exynos drm private structure. 225 * 226 * @da_start: start address to device address space. 227 * with iommu, device address space starts from this address 228 * otherwise default one. 229 * @da_space_size: size of device address space. 230 * if 0 then default value is used for it. 231 * @pipe: the pipe number for this crtc/manager. 232 */ 233 struct exynos_drm_private { 234 struct drm_fb_helper *fb_helper; 235 236 /* 237 * created crtc object would be contained at this array and 238 * this array is used to be aware of which crtc did it request vblank. 239 */ 240 struct drm_crtc *crtc[MAX_CRTC]; 241 struct drm_property *plane_zpos_property; 242 243 unsigned long da_start; 244 unsigned long da_space_size; 245 246 unsigned int pipe; 247 }; 248 249 /* 250 * Exynos drm sub driver structure. 251 * 252 * @list: sub driver has its own list object to register to exynos drm driver. 253 * @dev: pointer to device object for subdrv device driver. 254 * @drm_dev: pointer to drm_device and this pointer would be set 255 * when sub driver calls exynos_drm_subdrv_register(). 256 * @probe: this callback would be called by exynos drm driver after 257 * subdrv is registered to it. 258 * @remove: this callback is used to release resources created 259 * by probe callback. 260 * @open: this would be called with drm device file open. 261 * @close: this would be called with drm device file close. 262 */ 263 struct exynos_drm_subdrv { 264 struct list_head list; 265 struct device *dev; 266 struct drm_device *drm_dev; 267 268 int (*probe)(struct drm_device *drm_dev, struct device *dev); 269 void (*remove)(struct drm_device *drm_dev, struct 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 }; 275 276 /* This function would be called by non kms drivers such as g2d and ipp. */ 277 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); 278 279 /* this function removes subdrv list from exynos drm driver */ 280 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); 281 282 int exynos_drm_device_subdrv_probe(struct drm_device *dev); 283 int exynos_drm_device_subdrv_remove(struct drm_device *dev); 284 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); 285 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); 286 287 #ifdef CONFIG_DRM_EXYNOS_DPI 288 struct exynos_drm_display * exynos_dpi_probe(struct device *dev); 289 int exynos_dpi_remove(struct exynos_drm_display *display); 290 #else 291 static inline struct exynos_drm_display * 292 exynos_dpi_probe(struct device *dev) { return NULL; } 293 static inline int exynos_dpi_remove(struct exynos_drm_display *display) 294 { 295 return 0; 296 } 297 #endif 298 299 /* This function creates a encoder and a connector, and initializes them. */ 300 int exynos_drm_create_enc_conn(struct drm_device *dev, 301 struct exynos_drm_display *display); 302 303 extern struct platform_driver fimd_driver; 304 extern struct platform_driver exynos5433_decon_driver; 305 extern struct platform_driver decon_driver; 306 extern struct platform_driver dp_driver; 307 extern struct platform_driver dsi_driver; 308 extern struct platform_driver mixer_driver; 309 extern struct platform_driver hdmi_driver; 310 extern struct platform_driver exynos_drm_common_hdmi_driver; 311 extern struct platform_driver vidi_driver; 312 extern struct platform_driver g2d_driver; 313 extern struct platform_driver fimc_driver; 314 extern struct platform_driver rotator_driver; 315 extern struct platform_driver gsc_driver; 316 extern struct platform_driver ipp_driver; 317 extern struct platform_driver mic_driver; 318 #endif 319