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/*
* Copyright © 2013 ARM Limited.
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
*/
#include "../drmmode_driver.h"
#include <stddef.h>
#include <xf86drmMode.h>
#include <xf86drm.h>
#include <sys/ioctl.h>
/* Following ioctls should be included from libdrm exynos_drm.h but
* libdrm doesn't install this correctly so for now they are here.
*/
struct drm_exynos_plane_set_zpos {
__u32 plane_id;
__s32 zpos;
};
#define DRM_EXYNOS_PLANE_SET_ZPOS 0x06
#define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
#define EXYNOS_BO_CONTIG 0
#define EXYNOS_BO_NONCONTIG 1
struct drm_exynos_gem_create {
uint64_t size;
unsigned int flags;
unsigned int handle;
};
#define DRM_EXYNOS_GEM_CREATE 0x00
#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
/* Cursor dimensions
* Technically we probably don't have any size limit.. since we
* are just using an overlay... but xserver will always create
* cursor images in the max size, so don't use width/height values
* that are too big
*/
#define CURSORW (64)
#define CURSORH (64)
/*
* Padding added down each side of cursor image. This is a workaround for a bug
* causing corruption when the cursor reaches the screen edges.
*/
#define CURSORPAD (16)
#define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1))
static int init_plane_for_cursor(int drm_fd, uint32_t plane_id)
{
int res = -1;
drmModeObjectPropertiesPtr props;
props = drmModeObjectGetProperties(drm_fd, plane_id,
DRM_MODE_OBJECT_PLANE);
if (props) {
int i;
for (i = 0; i < props->count_props; i++) {
drmModePropertyPtr this_prop;
this_prop = drmModeGetProperty(drm_fd, props->props[i]);
if (this_prop) {
if (!strncmp(this_prop->name, "zpos",
DRM_PROP_NAME_LEN)) {
res = drmModeObjectSetProperty(drm_fd,
plane_id,
DRM_MODE_OBJECT_PLANE,
this_prop->prop_id,
1);
drmModeFreeProperty(this_prop);
break;
}
drmModeFreeProperty(this_prop);
}
}
drmModeFreeObjectProperties(props);
}
if (res) {
/* Try the old method */
struct drm_exynos_plane_set_zpos data;
data.plane_id = plane_id;
data.zpos = 1;
res = ioctl(drm_fd, DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS, &data);
}
return res;
}
static int create_custom_gem(int fd, struct armsoc_create_gem *create_gem)
{
struct drm_exynos_gem_create create_exynos;
int ret;
unsigned int pitch;
/* make pitch a multiple of 64 bytes for best performance */
pitch = ALIGN(create_gem->width * ((create_gem->bpp + 7) / 8), 64);
memset(&create_exynos, 0, sizeof(create_exynos));
create_exynos.size = create_gem->height * pitch;
assert((create_gem->buf_type == ARMSOC_BO_SCANOUT) ||
(create_gem->buf_type == ARMSOC_BO_NON_SCANOUT));
/* Contiguous allocations are not supported in some exynos drm versions.
* When they are supported all allocations are effectively contiguous
* anyway, so for simplicity we always request non contiguous buffers.
*/
create_exynos.flags = EXYNOS_BO_NONCONTIG;
ret = drmIoctl(fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &create_exynos);
if (ret)
return ret;
/* Convert custom create_exynos to generic create_gem */
create_gem->handle = create_exynos.handle;
create_gem->pitch = pitch;
create_gem->size = create_exynos.size;
return 0;
}
struct drmmode_interface exynos_interface = {
1 /* use_page_flip_events */,
CURSORW /* cursor width */,
CURSORH /* cursor_height */,
CURSORPAD /* cursor padding */,
HWCURSOR_API_PLANE /* cursor_api */,
init_plane_for_cursor /* init_plane_for_cursor */,
0 /* vblank_query_supported */,
create_custom_gem /* create_custom_gem */,
};
struct drmmode_interface *drmmode_interface_get_implementation(int drm_fd)
{
return &exynos_interface;
}
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