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#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <linux/videodev2.h>
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <unistd.h>
#include "common.h"
#include "fimc.h"
#include <drm/exynos_drm.h>
#include <errno.h>
#include <drm/drm_fourcc.h>
#include "gem.h"
int exynos_gem_create(int fd, struct drm_exynos_gem_create *gem)
{
int ret;
if (!gem) {
fprintf(stderr,"%s: %d - GEM object is null\n",__func__,__LINE__);
return -EINVAL;
}
ret = ioctl(fd, DRM_IOCTL_EXYNOS_GEM_CREATE, gem) ;
if(ret){
fprintf(stderr,"%s: %d - Failed to create GEM buffer\n %d %s",__func__,__LINE__,ret,strerror(errno));
return -EINVAL;
}
return 0;
}
int exynos_gem_map_offset(int fd, struct drm_mode_map_dumb *map_off)
{
if (ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, map_off) < 0) {
fprintf(stderr,"%s: %d - Failed to get buffer offset\n",__func__,__LINE__);
return -EINVAL;
}
return 0;
}
int exynos_gem_mmap(int fd, struct exynos_gem_mmap_data *in_mmap)
{
int ret;
void *map;
struct drm_mode_map_dumb arg;
memset(&arg, 0, sizeof(arg));
arg.handle = in_mmap->handle;
ret = ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
if (ret) {
fprintf(stderr, "%s: %d - failed to map dumb buffer: %s\n",
__func__, __LINE__, strerror(errno));
return ret;
}
in_mmap->offset = arg.offset;
map = mmap(NULL, (size_t)in_mmap->size, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, (off_t)arg.offset);
if (map == MAP_FAILED) {
fprintf(stderr, "%s: %d - failed to mmap buffer: %s\n",
__func__, __LINE__, strerror(errno));
return -EFAULT;
}
in_mmap->addr = map;
return 0;
}
int exynos_gem_close(int fd, struct drm_gem_close *gem_close)
{
int ret = 0;
ret = ioctl(fd, DRM_IOCTL_GEM_CLOSE, gem_close);
if (ret < 0)
fprintf(stderr, "%s: %d - failed to close: %s\n", __func__, __LINE__, strerror(-ret));
return ret;
}
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