114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/*
|
|
* 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, \
|
|
.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 */
|