Release 4.12 include/drm/tinydrm/tinydrm.h

/*
 * 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);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Noralf Trönnes
25
100.00%
1
100.00%
Total
25
100.00%
1
100.00%

/**
 * 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, \
        .dumb_map_offset        = drm_gem_cma_dumb_map_offset, \
        .dumb_destroy           = drm_gem_dumb_destroy

/**
 * 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);
int
tinydrm_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 */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Noralf Trönnes
266
100.00%
2
100.00%
Total
266
100.00%
2
100.00%
Directory: include/drm/tinydrm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.