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/* vigs.h
*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* Authors:
* Stanislav Vorobiov <s.vorobiov@samsung.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __VIGS_H__
#define __VIGS_H__
#include <stdint.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Surface formats.
*/
typedef enum
{
vigs_drm_surface_bgrx8888 = 0x0,
vigs_drm_surface_bgra8888 = 0x1,
} vigs_drm_surface_format;
/*
* Surface access flags.
*/
#define VIGS_DRM_SAF_READ 1
#define VIGS_DRM_SAF_WRITE 2
struct vigs_drm_device
{
/* DRM fd. */
int fd;
};
struct vigs_drm_gem
{
/* VIGS device object. */
struct vigs_drm_device *dev;
/* size of the buffer created. */
uint32_t size;
/* a gem handle to gem object created. */
uint32_t handle;
/* a gem global handle from flink request. initially 0. */
uint32_t name;
/* user space address to a gem buffer mmaped. initially NULL. */
void *vaddr;
};
struct vigs_drm_surface
{
struct vigs_drm_gem gem;
uint32_t width;
uint32_t height;
uint32_t stride;
uint32_t format;
int scanout;
uint32_t id;
};
struct vigs_drm_execbuffer
{
struct vigs_drm_gem gem;
};
struct vigs_drm_fence
{
/* VIGS device object. */
struct vigs_drm_device *dev;
/* a handle to fence object. */
uint32_t handle;
/* fence sequence number. */
uint32_t seq;
/* is fence signaled ? updated on 'vigs_drm_fence_check'. */
int signaled;
};
/*
* All functions return 0 on success and < 0 on error, i.e. kernel style:
* return -ENOMEM;
*/
/*
* Device functions.
* @{
*/
/*
* Returns -EINVAL on driver version mismatch.
*/
int vigs_drm_device_create(int fd, struct vigs_drm_device **dev);
void vigs_drm_device_destroy(struct vigs_drm_device *dev);
int vigs_drm_device_get_protocol_version(struct vigs_drm_device *dev,
uint32_t *protocol_version);
/*
* @}
*/
/*
* GEM functions.
* @{
*/
/*
* Passing NULL won't hurt, this is for convenience.
*/
void vigs_drm_gem_ref(struct vigs_drm_gem *gem);
/*
* Passing NULL won't hurt, this is for convenience.
*/
void vigs_drm_gem_unref(struct vigs_drm_gem *gem);
int vigs_drm_gem_get_name(struct vigs_drm_gem *gem);
int vigs_drm_gem_map(struct vigs_drm_gem *gem, int track_access);
void vigs_drm_gem_unmap(struct vigs_drm_gem *gem);
int vigs_drm_gem_wait(struct vigs_drm_gem *gem);
/*
* @}
*/
/*
* Surface functions.
* @{
*/
int vigs_drm_surface_create(struct vigs_drm_device *dev,
uint32_t width,
uint32_t height,
uint32_t stride,
uint32_t format,
int scanout,
struct vigs_drm_surface **sfc);
int vigs_drm_surface_open(struct vigs_drm_device *dev,
uint32_t name,
struct vigs_drm_surface **sfc);
int vigs_drm_surface_set_gpu_dirty(struct vigs_drm_surface *sfc);
int vigs_drm_surface_start_access(struct vigs_drm_surface *sfc,
uint32_t saf);
int vigs_drm_surface_end_access(struct vigs_drm_surface *sfc,
int sync);
/*
* @}
*/
/*
* Execbuffer functions.
* @{
*/
int vigs_drm_execbuffer_create(struct vigs_drm_device *dev,
uint32_t size,
struct vigs_drm_execbuffer **execbuffer);
int vigs_drm_execbuffer_open(struct vigs_drm_device *dev,
uint32_t name,
struct vigs_drm_execbuffer **execbuffer);
int vigs_drm_execbuffer_exec(struct vigs_drm_execbuffer *execbuffer);
/*
* @}
*/
/*
* Fence functions.
* @{
*/
int vigs_drm_fence_create(struct vigs_drm_device *dev,
int send,
struct vigs_drm_fence **fence);
/*
* Passing NULL won't hurt, this is for convenience.
*/
void vigs_drm_fence_ref(struct vigs_drm_fence *fence);
/*
* Passing NULL won't hurt, this is for convenience.
*/
void vigs_drm_fence_unref(struct vigs_drm_fence *fence);
int vigs_drm_fence_wait(struct vigs_drm_fence *fence);
int vigs_drm_fence_check(struct vigs_drm_fence *fence);
/*
* @}
*/
#ifdef __cplusplus
};
#endif /* __cplusplus */
#endif
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