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 96 /* 97 * Exynos DRM plane configuration structure. 98 * 99 * @zpos: initial z-position of the plane. 100 * @type: type of the plane (primary, cursor or overlay). 101 * @pixel_formats: supported pixel formats. 102 * @num_pixel_formats: number of elements in 'pixel_formats'. 103 * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*) 104 */ 105 106 struct exynos_drm_plane_config { 107 unsigned int zpos; 108 enum drm_plane_type type; 109 const uint32_t *pixel_formats; 110 unsigned int num_pixel_formats; 111 unsigned int capabilities; 112 }; 113 114 /* 115 * Exynos drm crtc ops 116 * 117 * @enable: enable the device 118 * @disable: disable the device 119 * @enable_vblank: specific driver callback for enabling vblank interrupt. 120 * @disable_vblank: specific driver callback for disabling vblank interrupt. 121 * @mode_valid: specific driver callback for mode validation 122 * @atomic_check: validate state 123 * @atomic_begin: prepare device to receive an update 124 * @atomic_flush: mark the end of device update 125 * @update_plane: apply hardware specific overlay data to registers. 126 * @disable_plane: disable hardware specific overlay. 127 * @te_handler: trigger to transfer video image at the tearing effect 128 * synchronization signal if there is a page flip request. 129 */ 130 struct exynos_drm_crtc; 131 struct exynos_drm_crtc_ops { 132 void (*enable)(struct exynos_drm_crtc *crtc); 133 void (*disable)(struct exynos_drm_crtc *crtc); 134 int (*enable_vblank)(struct exynos_drm_crtc *crtc); 135 void (*disable_vblank)(struct exynos_drm_crtc *crtc); 136 u32 (*get_vblank_counter)(struct exynos_drm_crtc *crtc); 137 enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc, 138 const struct drm_display_mode *mode); 139 int (*atomic_check)(struct exynos_drm_crtc *crtc, 140 struct drm_crtc_state *state); 141 void (*atomic_begin)(struct exynos_drm_crtc *crtc); 142 void (*update_plane)(struct exynos_drm_crtc *crtc, 143 struct exynos_drm_plane *plane); 144 void (*disable_plane)(struct exynos_drm_crtc *crtc, 145 struct exynos_drm_plane *plane); 146 void (*atomic_flush)(struct exynos_drm_crtc *crtc); 147 void (*te_handler)(struct exynos_drm_crtc *crtc); 148 }; 149 150 struct exynos_drm_clk { 151 void (*enable)(struct exynos_drm_clk *clk, bool enable); 152 }; 153 154 /* 155 * Exynos specific crtc structure. 156 * 157 * @base: crtc object. 158 * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI. 159 * @ops: pointer to callbacks for exynos drm specific functionality 160 * @ctx: A pointer to the crtc's implementation specific context 161 * @pipe_clk: A pointer to the crtc's pipeline clock. 162 */ 163 struct exynos_drm_crtc { 164 struct drm_crtc base; 165 enum exynos_drm_output_type type; 166 const struct exynos_drm_crtc_ops *ops; 167 void *ctx; 168 struct exynos_drm_clk *pipe_clk; 169 bool i80_mode : 1; 170 }; 171 172 static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc, 173 bool enable) 174 { 175 if (crtc->pipe_clk) 176 crtc->pipe_clk->enable(crtc->pipe_clk, enable); 177 } 178 179 struct exynos_drm_g2d_private { 180 struct device *dev; 181 struct list_head inuse_cmdlist; 182 struct list_head event_list; 183 struct list_head userptr_list; 184 }; 185 186 struct drm_exynos_file_private { 187 struct exynos_drm_g2d_private *g2d_priv; 188 struct device *ipp_dev; 189 }; 190 191 /* 192 * Exynos drm private structure. 193 * 194 * @da_start: start address to device address space. 195 * with iommu, device address space starts from this address 196 * otherwise default one. 197 * @da_space_size: size of device address space. 198 * if 0 then default value is used for it. 199 * @pending: the crtcs that have pending updates to finish 200 * @lock: protect access to @pending 201 * @wait: wait an atomic commit to finish 202 */ 203 struct exynos_drm_private { 204 struct drm_fb_helper *fb_helper; 205 struct drm_atomic_state *suspend_state; 206 207 struct device *dma_dev; 208 void *mapping; 209 210 /* for atomic commit */ 211 u32 pending; 212 spinlock_t lock; 213 wait_queue_head_t wait; 214 }; 215 216 static inline struct device *to_dma_dev(struct drm_device *dev) 217 { 218 struct exynos_drm_private *priv = dev->dev_private; 219 220 return priv->dma_dev; 221 } 222 223 /* 224 * Exynos drm sub driver structure. 225 * 226 * @list: sub driver has its own list object to register to exynos drm driver. 227 * @dev: pointer to device object for subdrv device driver. 228 * @drm_dev: pointer to drm_device and this pointer would be set 229 * when sub driver calls exynos_drm_subdrv_register(). 230 * @probe: this callback would be called by exynos drm driver after 231 * subdrv is registered to it. 232 * @remove: this callback is used to release resources created 233 * by probe callback. 234 * @open: this would be called with drm device file open. 235 * @close: this would be called with drm device file close. 236 */ 237 struct exynos_drm_subdrv { 238 struct list_head list; 239 struct device *dev; 240 struct drm_device *drm_dev; 241 242 int (*probe)(struct drm_device *drm_dev, struct device *dev); 243 void (*remove)(struct drm_device *drm_dev, struct device *dev); 244 int (*open)(struct drm_device *drm_dev, struct device *dev, 245 struct drm_file *file); 246 void (*close)(struct drm_device *drm_dev, struct device *dev, 247 struct drm_file *file); 248 }; 249 250 /* This function would be called by non kms drivers such as g2d and ipp. */ 251 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv); 252 253 /* this function removes subdrv list from exynos drm driver */ 254 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv); 255 256 int exynos_drm_device_subdrv_probe(struct drm_device *dev); 257 int exynos_drm_device_subdrv_remove(struct drm_device *dev); 258 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file); 259 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); 260 261 #ifdef CONFIG_DRM_EXYNOS_DPI 262 struct drm_encoder *exynos_dpi_probe(struct device *dev); 263 int exynos_dpi_remove(struct drm_encoder *encoder); 264 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder); 265 #else 266 static inline struct drm_encoder * 267 exynos_dpi_probe(struct device *dev) { return NULL; } 268 static inline int exynos_dpi_remove(struct drm_encoder *encoder) 269 { 270 return 0; 271 } 272 static inline int exynos_dpi_bind(struct drm_device *dev, 273 struct drm_encoder *encoder) 274 { 275 return 0; 276 } 277 #endif 278 279 int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, 280 bool nonblock); 281 int exynos_atomic_check(struct drm_device *dev, struct drm_atomic_state *state); 282 283 284 extern struct platform_driver fimd_driver; 285 extern struct platform_driver exynos5433_decon_driver; 286 extern struct platform_driver decon_driver; 287 extern struct platform_driver dp_driver; 288 extern struct platform_driver dsi_driver; 289 extern struct platform_driver mixer_driver; 290 extern struct platform_driver hdmi_driver; 291 extern struct platform_driver vidi_driver; 292 extern struct platform_driver g2d_driver; 293 extern struct platform_driver fimc_driver; 294 extern struct platform_driver rotator_driver; 295 extern struct platform_driver gsc_driver; 296 extern struct platform_driver ipp_driver; 297 extern struct platform_driver mic_driver; 298 #endif 299