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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>
/* 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)
/* Optional function */
static int init_plane_for_cursor(int drm_fd, uint32_t plane_id) {
return 0;
}
static int create_custom_gem(int fd, struct armsoc_create_gem
*create_gem) {
struct drm_mode_create_dumb create_arg;
int ret;
memset (&create_arg, 0, sizeof (create_arg));
create_arg.bpp = create_gem->bpp;
create_arg.width = create_gem->width;
create_arg.height = create_gem->height;
ret = ioctl (fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
if (ret)
return ret;
/* Convert custom create_exynos to generic create_gem */
create_gem->handle = create_arg.handle;
create_gem->pitch = create_arg.pitch;
create_gem->size = create_gem->height * create_arg.pitch;
return 0;
}
struct drmmode_interface sti_interface = {
"sti" /* name of drm driver */,
1 /* use_page_flip_events */,
1 /* use_early_display */,
CURSORW /* cursor width */,
CURSORH /* cursor_height */,
CURSORPAD /* cursor padding */,
HWCURSOR_API_STANDARD /* cursor_api */,
init_plane_for_cursor /* init_plane_for_cursor */,
0 /* vblank_query_supported */,
create_custom_gem /* create_custom_gem */,
};
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