/* * Copyright (C) 2016 Noralf Trønnes * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef __LINUX_TINYDRM_H#define __LINUX_TINYDRM_H #include <linux/mutex.h>#include <drm/drm_simple_kms_helper.h> struct drm_clip_rect;struct drm_driver;struct drm_file;struct drm_framebuffer;struct drm_framebuffer_funcs; /** * struct tinydrm_device - tinydrm device */struct tinydrm_device {	/**	 * @drm: DRM device	 */	struct drm_device *drm; 	/**	 * @pipe: Display pipe structure	 */	struct drm_simple_display_pipe pipe; 	/**	 * @dirty_lock: Serializes framebuffer flushing	 */	struct mutex dirty_lock; 	/**	 * @fb_funcs: Framebuffer functions used when creating framebuffers	 */	const struct drm_framebuffer_funcs *fb_funcs; 	/**	 * @fb_dirty: Framebuffer dirty callback	 */	int (*fb_dirty)(struct drm_framebuffer *framebuffer,			struct drm_file *file_priv, unsigned flags,			unsigned color, struct drm_clip_rect *clips,			unsigned num_clips);}; static inline struct tinydrm_device *pipe_to_tinydrm(struct drm_simple_display_pipe *pipe){	return container_of(pipe, struct tinydrm_device, pipe);} /** * TINYDRM_MODE - tinydrm display mode * @hd: Horizontal resolution, width * @vd: Vertical resolution, height * @hd_mm: Display width in millimeters * @vd_mm: Display height in millimeters * * This macro creates a &drm_display_mode for use with tinydrm. */#define TINYDRM_MODE(hd, vd, hd_mm, vd_mm) \	.hdisplay = (hd), \	.hsync_start = (hd), \	.hsync_end = (hd), \	.htotal = (hd), \	.vdisplay = (vd), \	.vsync_start = (vd), \	.vsync_end = (vd), \	.vtotal = (vd), \	.width_mm = (hd_mm), \	.height_mm = (vd_mm), \	.type = DRM_MODE_TYPE_DRIVER, \	.clock = 1 /* pass validation */ int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,		      const struct drm_framebuffer_funcs *fb_funcs,		      struct drm_driver *driver);int devm_tinydrm_register(struct tinydrm_device *tdev);void tinydrm_shutdown(struct tinydrm_device *tdev); void tinydrm_display_pipe_update(struct drm_simple_display_pipe *pipe,				 struct drm_plane_state *old_state);inttinydrm_display_pipe_init(struct tinydrm_device *tdev,			  const struct drm_simple_display_pipe_funcs *funcs,			  int connector_type,			  const uint32_t *formats,			  unsigned int format_count,			  const struct drm_display_mode *mode,			  unsigned int rotation); #endif /* __LINUX_TINYDRM_H */