/* * 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 <drm/drm_gem_cma_helper.h>#include <drm/drm_fb_cma_helper.h>#include <drm/drm_simple_kms_helper.h> /** * struct tinydrm_device - tinydrm device * @drm: DRM device * @pipe: Display pipe structure * @dirty_lock: Serializes framebuffer flushing * @fbdev_cma: CMA fbdev structure * @suspend_state: Atomic state when suspended * @fb_funcs: Framebuffer functions used when creating framebuffers */struct tinydrm_device {	struct drm_device *drm;	struct drm_simple_display_pipe pipe;	struct mutex dirty_lock;	struct drm_fbdev_cma *fbdev_cma;	struct drm_atomic_state *suspend_state;	const struct drm_framebuffer_funcs *fb_funcs;}; static inline struct tinydrm_device *pipe_to_tinydrm(struct drm_simple_display_pipe *pipe){	return container_of(pipe, struct tinydrm_device, pipe);} /** * TINYDRM_GEM_DRIVER_OPS - default tinydrm gem operations * * This macro provides a shortcut for setting the tinydrm GEM operations in * the &drm_driver structure. */#define TINYDRM_GEM_DRIVER_OPS \	.gem_free_object	= tinydrm_gem_cma_free_object, \	.gem_vm_ops		= &drm_gem_cma_vm_ops, \	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd, \	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle, \	.gem_prime_import	= drm_gem_prime_import, \	.gem_prime_export	= drm_gem_prime_export, \	.gem_prime_get_sg_table	= drm_gem_cma_prime_get_sg_table, \	.gem_prime_import_sg_table = tinydrm_gem_cma_prime_import_sg_table, \	.gem_prime_vmap		= drm_gem_cma_prime_vmap, \	.gem_prime_vunmap	= drm_gem_cma_prime_vunmap, \	.gem_prime_mmap		= drm_gem_cma_prime_mmap, \	.dumb_create		= drm_gem_cma_dumb_create /** * 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 */ void tinydrm_lastclose(struct drm_device *drm);void tinydrm_gem_cma_free_object(struct drm_gem_object *gem_obj);struct drm_gem_object *tinydrm_gem_cma_prime_import_sg_table(struct drm_device *drm,				      struct dma_buf_attachment *attach,				      struct sg_table *sgt);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);int tinydrm_suspend(struct tinydrm_device *tdev);int tinydrm_resume(struct tinydrm_device *tdev); void tinydrm_display_pipe_update(struct drm_simple_display_pipe *pipe,				 struct drm_plane_state *old_state);int tinydrm_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,				    struct drm_plane_state *plane_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 */