exynos_drm_drv.h 9.0 KB

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  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. #ifndef _EXYNOS_DRM_DRV_H_
  15. #define _EXYNOS_DRM_DRV_H_
  16. #include <drm/drmP.h>
  17. #include <linux/module.h>
  18. #define MAX_CRTC 3
  19. #define MAX_PLANE 5
  20. #define MAX_FB_BUFFER 4
  21. #define DEFAULT_WIN 0
  22. #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
  23. #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
  24. /* this enumerates display type. */
  25. enum exynos_drm_output_type {
  26. EXYNOS_DISPLAY_TYPE_NONE,
  27. /* RGB or CPU Interface. */
  28. EXYNOS_DISPLAY_TYPE_LCD,
  29. /* HDMI Interface. */
  30. EXYNOS_DISPLAY_TYPE_HDMI,
  31. /* Virtual Display Interface. */
  32. EXYNOS_DISPLAY_TYPE_VIDI,
  33. };
  34. struct exynos_drm_rect {
  35. unsigned int x, y;
  36. unsigned int w, h;
  37. };
  38. /*
  39. * Exynos drm plane state structure.
  40. *
  41. * @base: plane_state object (contains drm_framebuffer pointer)
  42. * @src: rectangle of the source image data to be displayed (clipped to
  43. * visible part).
  44. * @crtc: rectangle of the target image position on hardware screen
  45. * (clipped to visible part).
  46. * @h_ratio: horizontal scaling ratio, 16.16 fixed point
  47. * @v_ratio: vertical scaling ratio, 16.16 fixed point
  48. *
  49. * this structure consists plane state data that will be applied to hardware
  50. * specific overlay info.
  51. */
  52. struct exynos_drm_plane_state {
  53. struct drm_plane_state base;
  54. struct exynos_drm_rect crtc;
  55. struct exynos_drm_rect src;
  56. unsigned int h_ratio;
  57. unsigned int v_ratio;
  58. };
  59. static inline struct exynos_drm_plane_state *
  60. to_exynos_plane_state(struct drm_plane_state *state)
  61. {
  62. return container_of(state, struct exynos_drm_plane_state, base);
  63. }
  64. /*
  65. * Exynos drm common overlay structure.
  66. *
  67. * @base: plane object
  68. * @index: hardware index of the overlay layer
  69. *
  70. * this structure is common to exynos SoC and its contents would be copied
  71. * to hardware specific overlay info.
  72. */
  73. struct exynos_drm_plane {
  74. struct drm_plane base;
  75. const struct exynos_drm_plane_config *config;
  76. unsigned int index;
  77. };
  78. #define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
  79. #define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
  80. #define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
  81. #define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3)
  82. /*
  83. * Exynos DRM plane configuration structure.
  84. *
  85. * @zpos: initial z-position of the plane.
  86. * @type: type of the plane (primary, cursor or overlay).
  87. * @pixel_formats: supported pixel formats.
  88. * @num_pixel_formats: number of elements in 'pixel_formats'.
  89. * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
  90. */
  91. struct exynos_drm_plane_config {
  92. unsigned int zpos;
  93. enum drm_plane_type type;
  94. const uint32_t *pixel_formats;
  95. unsigned int num_pixel_formats;
  96. unsigned int capabilities;
  97. };
  98. /*
  99. * Exynos drm crtc ops
  100. *
  101. * @enable: enable the device
  102. * @disable: disable the device
  103. * @enable_vblank: specific driver callback for enabling vblank interrupt.
  104. * @disable_vblank: specific driver callback for disabling vblank interrupt.
  105. * @mode_valid: specific driver callback for mode validation
  106. * @atomic_check: validate state
  107. * @atomic_begin: prepare device to receive an update
  108. * @atomic_flush: mark the end of device update
  109. * @update_plane: apply hardware specific overlay data to registers.
  110. * @disable_plane: disable hardware specific overlay.
  111. * @te_handler: trigger to transfer video image at the tearing effect
  112. * synchronization signal if there is a page flip request.
  113. */
  114. struct exynos_drm_crtc;
  115. struct exynos_drm_crtc_ops {
  116. void (*enable)(struct exynos_drm_crtc *crtc);
  117. void (*disable)(struct exynos_drm_crtc *crtc);
  118. int (*enable_vblank)(struct exynos_drm_crtc *crtc);
  119. void (*disable_vblank)(struct exynos_drm_crtc *crtc);
  120. enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
  121. const struct drm_display_mode *mode);
  122. int (*atomic_check)(struct exynos_drm_crtc *crtc,
  123. struct drm_crtc_state *state);
  124. void (*atomic_begin)(struct exynos_drm_crtc *crtc);
  125. void (*update_plane)(struct exynos_drm_crtc *crtc,
  126. struct exynos_drm_plane *plane);
  127. void (*disable_plane)(struct exynos_drm_crtc *crtc,
  128. struct exynos_drm_plane *plane);
  129. void (*atomic_flush)(struct exynos_drm_crtc *crtc);
  130. void (*te_handler)(struct exynos_drm_crtc *crtc);
  131. };
  132. struct exynos_drm_clk {
  133. void (*enable)(struct exynos_drm_clk *clk, bool enable);
  134. };
  135. /*
  136. * Exynos specific crtc structure.
  137. *
  138. * @base: crtc object.
  139. * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
  140. * @ops: pointer to callbacks for exynos drm specific functionality
  141. * @ctx: A pointer to the crtc's implementation specific context
  142. * @pipe_clk: A pointer to the crtc's pipeline clock.
  143. */
  144. struct exynos_drm_crtc {
  145. struct drm_crtc base;
  146. enum exynos_drm_output_type type;
  147. const struct exynos_drm_crtc_ops *ops;
  148. void *ctx;
  149. struct exynos_drm_clk *pipe_clk;
  150. bool i80_mode : 1;
  151. };
  152. static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
  153. bool enable)
  154. {
  155. if (crtc->pipe_clk)
  156. crtc->pipe_clk->enable(crtc->pipe_clk, enable);
  157. }
  158. struct exynos_drm_g2d_private {
  159. struct device *dev;
  160. struct list_head inuse_cmdlist;
  161. struct list_head event_list;
  162. struct list_head userptr_list;
  163. };
  164. struct drm_exynos_file_private {
  165. struct exynos_drm_g2d_private *g2d_priv;
  166. struct device *ipp_dev;
  167. };
  168. /*
  169. * Exynos drm private structure.
  170. *
  171. * @da_start: start address to device address space.
  172. * with iommu, device address space starts from this address
  173. * otherwise default one.
  174. * @da_space_size: size of device address space.
  175. * if 0 then default value is used for it.
  176. * @pending: the crtcs that have pending updates to finish
  177. * @lock: protect access to @pending
  178. * @wait: wait an atomic commit to finish
  179. */
  180. struct exynos_drm_private {
  181. struct drm_fb_helper *fb_helper;
  182. struct drm_atomic_state *suspend_state;
  183. struct device *dma_dev;
  184. void *mapping;
  185. /* for atomic commit */
  186. u32 pending;
  187. spinlock_t lock;
  188. wait_queue_head_t wait;
  189. };
  190. static inline struct device *to_dma_dev(struct drm_device *dev)
  191. {
  192. struct exynos_drm_private *priv = dev->dev_private;
  193. return priv->dma_dev;
  194. }
  195. /*
  196. * Exynos drm sub driver structure.
  197. *
  198. * @list: sub driver has its own list object to register to exynos drm driver.
  199. * @dev: pointer to device object for subdrv device driver.
  200. * @drm_dev: pointer to drm_device and this pointer would be set
  201. * when sub driver calls exynos_drm_subdrv_register().
  202. * @probe: this callback would be called by exynos drm driver after
  203. * subdrv is registered to it.
  204. * @remove: this callback is used to release resources created
  205. * by probe callback.
  206. * @open: this would be called with drm device file open.
  207. * @close: this would be called with drm device file close.
  208. */
  209. struct exynos_drm_subdrv {
  210. struct list_head list;
  211. struct device *dev;
  212. struct drm_device *drm_dev;
  213. int (*probe)(struct drm_device *drm_dev, struct device *dev);
  214. void (*remove)(struct drm_device *drm_dev, struct device *dev);
  215. int (*open)(struct drm_device *drm_dev, struct device *dev,
  216. struct drm_file *file);
  217. void (*close)(struct drm_device *drm_dev, struct device *dev,
  218. struct drm_file *file);
  219. };
  220. /* This function would be called by non kms drivers such as g2d and ipp. */
  221. int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
  222. /* this function removes subdrv list from exynos drm driver */
  223. int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
  224. int exynos_drm_device_subdrv_probe(struct drm_device *dev);
  225. int exynos_drm_device_subdrv_remove(struct drm_device *dev);
  226. int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
  227. void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
  228. #ifdef CONFIG_DRM_EXYNOS_DPI
  229. struct drm_encoder *exynos_dpi_probe(struct device *dev);
  230. int exynos_dpi_remove(struct drm_encoder *encoder);
  231. int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
  232. #else
  233. static inline struct drm_encoder *
  234. exynos_dpi_probe(struct device *dev) { return NULL; }
  235. static inline int exynos_dpi_remove(struct drm_encoder *encoder)
  236. {
  237. return 0;
  238. }
  239. static inline int exynos_dpi_bind(struct drm_device *dev,
  240. struct drm_encoder *encoder)
  241. {
  242. return 0;
  243. }
  244. #endif
  245. int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
  246. bool nonblock);
  247. int exynos_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
  248. extern struct platform_driver fimd_driver;
  249. extern struct platform_driver exynos5433_decon_driver;
  250. extern struct platform_driver decon_driver;
  251. extern struct platform_driver dp_driver;
  252. extern struct platform_driver dsi_driver;
  253. extern struct platform_driver mixer_driver;
  254. extern struct platform_driver hdmi_driver;
  255. extern struct platform_driver vidi_driver;
  256. extern struct platform_driver g2d_driver;
  257. extern struct platform_driver fimc_driver;
  258. extern struct platform_driver rotator_driver;
  259. extern struct platform_driver gsc_driver;
  260. extern struct platform_driver ipp_driver;
  261. extern struct platform_driver mic_driver;
  262. #endif