Blame xf86drmMode.c

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/*
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 * \file xf86drmMode.c
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 * Header for DRM modesetting interface.
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 *
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 * \author Jakob Bornecrantz <wallbraker@gmail.com>
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 *
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 * \par Acknowledgements:
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 * Feb 2007, Dave Airlie <airlied@linux.ie>
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 */
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/*
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 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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 * Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie>
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 * Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com>
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 *
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 */
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/*
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 * TODO the types we are after are defined in different headers on different
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 * platforms find which headers to include to get uint32_t
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 */
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#include <limits.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#if HAVE_SYS_SYSCTL_H
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#include <sys/sysctl.h>
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#endif
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#include <stdio.h>
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#include <stdbool.h>
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#include "libdrm_macros.h"
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#include "xf86drmMode.h"
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#include "xf86drm.h"
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#include <drm.h>
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#include <string.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <errno.h>
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#define memclear(s) memset(&s, 0, sizeof(s))
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#define U642VOID(x) ((void *)(unsigned long)(x))
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#define VOID2U64(x) ((uint64_t)(unsigned long)(x))
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static inline int DRM_IOCTL(int fd, unsigned long cmd, void *arg)
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{
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	int ret = drmIoctl(fd, cmd, arg);
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	return ret < 0 ? -errno : ret;
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}
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/*
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 * Util functions
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 */
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static void* drmAllocCpy(char *array, int count, int entry_size)
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{
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	char *r;
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	int i;
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	if (!count || !array || !entry_size)
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		return 0;
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	if (!(r = drmMalloc(count*entry_size)))
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		return 0;
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	for (i = 0; i < count; i++)
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		memcpy(r+(entry_size*i), array+(entry_size*i), entry_size);
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	return r;
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}
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/*
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 * A couple of free functions.
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 */
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drm_public void drmModeFreeModeInfo(drmModeModeInfoPtr ptr)
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{
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	if (!ptr)
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		return;
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	drmFree(ptr);
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}
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drm_public void drmModeFreeResources(drmModeResPtr ptr)
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{
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	if (!ptr)
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		return;
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	drmFree(ptr->fbs);
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	drmFree(ptr->crtcs);
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	drmFree(ptr->connectors);
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	drmFree(ptr->encoders);
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	drmFree(ptr);
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}
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drm_public void drmModeFreeFB(drmModeFBPtr ptr)
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{
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	if (!ptr)
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		return;
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	/* we might add more frees later. */
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	drmFree(ptr);
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}
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drm_public void drmModeFreeCrtc(drmModeCrtcPtr ptr)
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{
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	if (!ptr)
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		return;
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	drmFree(ptr);
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}
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drm_public void drmModeFreeConnector(drmModeConnectorPtr ptr)
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{
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	if (!ptr)
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		return;
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	drmFree(ptr->encoders);
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	drmFree(ptr->prop_values);
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	drmFree(ptr->props);
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	drmFree(ptr->modes);
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	drmFree(ptr);
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}
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drm_public void drmModeFreeEncoder(drmModeEncoderPtr ptr)
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{
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	drmFree(ptr);
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}
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/*
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 * ModeSetting functions.
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 */
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drm_public drmModeResPtr drmModeGetResources(int fd)
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{
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	struct drm_mode_card_res res, counts;
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	drmModeResPtr r = 0;
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retry:
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	memclear(res);
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	if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
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		return 0;
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	counts = res;
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	if (res.count_fbs) {
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		res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t)));
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		if (!res.fb_id_ptr)
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			goto err_allocs;
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	}
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	if (res.count_crtcs) {
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		res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t)));
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		if (!res.crtc_id_ptr)
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			goto err_allocs;
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	}
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	if (res.count_connectors) {
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		res.connector_id_ptr = VOID2U64(drmMalloc(res.count_connectors*sizeof(uint32_t)));
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		if (!res.connector_id_ptr)
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			goto err_allocs;
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	}
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	if (res.count_encoders) {
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		res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t)));
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		if (!res.encoder_id_ptr)
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			goto err_allocs;
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	}
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	if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
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		goto err_allocs;
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	/* The number of available connectors and etc may have changed with a
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	 * hotplug event in between the ioctls, in which case the field is
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	 * silently ignored by the kernel.
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	 */
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	if (counts.count_fbs < res.count_fbs ||
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	    counts.count_crtcs < res.count_crtcs ||
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	    counts.count_connectors < res.count_connectors ||
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	    counts.count_encoders < res.count_encoders)
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	{
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		drmFree(U642VOID(res.fb_id_ptr));
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		drmFree(U642VOID(res.crtc_id_ptr));
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		drmFree(U642VOID(res.connector_id_ptr));
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		drmFree(U642VOID(res.encoder_id_ptr));
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		goto retry;
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	}
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	/*
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	 * return
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	 */
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	if (!(r = drmMalloc(sizeof(*r))))
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		goto err_allocs;
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	r->min_width     = res.min_width;
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	r->max_width     = res.max_width;
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	r->min_height    = res.min_height;
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	r->max_height    = res.max_height;
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	r->count_fbs     = res.count_fbs;
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	r->count_crtcs   = res.count_crtcs;
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	r->count_connectors = res.count_connectors;
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	r->count_encoders = res.count_encoders;
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	r->fbs        = drmAllocCpy(U642VOID(res.fb_id_ptr), res.count_fbs, sizeof(uint32_t));
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	r->crtcs      = drmAllocCpy(U642VOID(res.crtc_id_ptr), res.count_crtcs, sizeof(uint32_t));
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	r->connectors = drmAllocCpy(U642VOID(res.connector_id_ptr), res.count_connectors, sizeof(uint32_t));
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	r->encoders   = drmAllocCpy(U642VOID(res.encoder_id_ptr), res.count_encoders, sizeof(uint32_t));
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	if ((res.count_fbs && !r->fbs) ||
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	    (res.count_crtcs && !r->crtcs) ||
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	    (res.count_connectors && !r->connectors) ||
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	    (res.count_encoders && !r->encoders))
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	{
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		drmFree(r->fbs);
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		drmFree(r->crtcs);
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		drmFree(r->connectors);
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		drmFree(r->encoders);
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		drmFree(r);
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		r = 0;
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	}
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err_allocs:
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	drmFree(U642VOID(res.fb_id_ptr));
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	drmFree(U642VOID(res.crtc_id_ptr));
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	drmFree(U642VOID(res.connector_id_ptr));
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	drmFree(U642VOID(res.encoder_id_ptr));
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	return r;
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}
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drm_public int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
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                            uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
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                            uint32_t *buf_id)
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{
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	struct drm_mode_fb_cmd f;
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	int ret;
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	memclear(f);
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	f.width  = width;
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	f.height = height;
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	f.pitch  = pitch;
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	f.bpp    = bpp;
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	f.depth  = depth;
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	f.handle = bo_handle;
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	if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB, &f)))
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		return ret;
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	*buf_id = f.fb_id;
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	return 0;
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}
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drm_public int drmModeAddFB2WithModifiers(int fd, uint32_t width,
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		uint32_t height, uint32_t pixel_format, const uint32_t bo_handles[4],
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		const uint32_t pitches[4], const uint32_t offsets[4],
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		const uint64_t modifier[4], uint32_t *buf_id, uint32_t flags)
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{
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	struct drm_mode_fb_cmd2 f;
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	int ret;
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	memclear(f);
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	f.width  = width;
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	f.height = height;
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	f.pixel_format = pixel_format;
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	f.flags = flags;
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	memcpy(f.handles, bo_handles, 4 * sizeof(bo_handles[0]));
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	memcpy(f.pitches, pitches, 4 * sizeof(pitches[0]));
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	memcpy(f.offsets, offsets, 4 * sizeof(offsets[0]));
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	if (modifier)
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		memcpy(f.modifier, modifier, 4 * sizeof(modifier[0]));
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	if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB2, &f)))
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		return ret;
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	*buf_id = f.fb_id;
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	return 0;
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}
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drm_public int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
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		uint32_t pixel_format, const uint32_t bo_handles[4],
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		const uint32_t pitches[4], const uint32_t offsets[4],
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		uint32_t *buf_id, uint32_t flags)
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{
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	return drmModeAddFB2WithModifiers(fd, width, height,
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					  pixel_format, bo_handles,
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					  pitches, offsets, NULL,
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					  buf_id, flags);
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}
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drm_public int drmModeRmFB(int fd, uint32_t bufferId)
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{
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_RMFB, &bufferId);
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}
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drm_public drmModeFBPtr drmModeGetFB(int fd, uint32_t buf)
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{
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	struct drm_mode_fb_cmd info;
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	drmModeFBPtr r;
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	memclear(info);
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	info.fb_id = buf;
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	if (drmIoctl(fd, DRM_IOCTL_MODE_GETFB, &info))
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		return NULL;
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	if (!(r = drmMalloc(sizeof(*r))))
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		return NULL;
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	r->fb_id = info.fb_id;
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	r->width = info.width;
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	r->height = info.height;
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	r->pitch = info.pitch;
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	r->bpp = info.bpp;
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	r->handle = info.handle;
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	r->depth = info.depth;
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	return r;
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}
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drm_public int drmModeDirtyFB(int fd, uint32_t bufferId,
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		   drmModeClipPtr clips, uint32_t num_clips)
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{
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	struct drm_mode_fb_dirty_cmd dirty;
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	memclear(dirty);
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	dirty.fb_id = bufferId;
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	dirty.clips_ptr = VOID2U64(clips);
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	dirty.num_clips = num_clips;
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_DIRTYFB, &dirty);
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}
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/*
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 * Crtc functions
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 */
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drm_public drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId)
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{
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	struct drm_mode_crtc crtc;
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	drmModeCrtcPtr r;
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	memclear(crtc);
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	crtc.crtc_id = crtcId;
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	if (drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
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		return 0;
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	/*
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	 * return
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	 */
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	if (!(r = drmMalloc(sizeof(*r))))
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		return 0;
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	r->crtc_id         = crtc.crtc_id;
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	r->x               = crtc.x;
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	r->y               = crtc.y;
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	r->mode_valid      = crtc.mode_valid;
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	if (r->mode_valid) {
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		memcpy(&r->mode, &crtc.mode, sizeof(struct drm_mode_modeinfo));
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		r->width = crtc.mode.hdisplay;
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		r->height = crtc.mode.vdisplay;
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	}
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	r->buffer_id       = crtc.fb_id;
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	r->gamma_size      = crtc.gamma_size;
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	return r;
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}
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drm_public int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
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		   uint32_t x, uint32_t y, uint32_t *connectors, int count,
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		   drmModeModeInfoPtr mode)
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{
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	struct drm_mode_crtc crtc;
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	memclear(crtc);
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	crtc.x             = x;
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	crtc.y             = y;
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	crtc.crtc_id       = crtcId;
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	crtc.fb_id         = bufferId;
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	crtc.set_connectors_ptr = VOID2U64(connectors);
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	crtc.count_connectors = count;
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	if (mode) {
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	  memcpy(&crtc.mode, mode, sizeof(struct drm_mode_modeinfo));
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	  crtc.mode_valid = 1;
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	}
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETCRTC, &crtc);
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}
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/*
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 * Cursor manipulation
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 */
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drm_public int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle,
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								uint32_t width, uint32_t height)
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{
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	struct drm_mode_cursor arg;
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	memclear(arg);
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	arg.flags = DRM_MODE_CURSOR_BO;
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	arg.crtc_id = crtcId;
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	arg.width = width;
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	arg.height = height;
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	arg.handle = bo_handle;
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg;;
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}
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drm_public int drmModeSetCursor2(int fd, uint32_t crtcId, uint32_t bo_handle,
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								 uint32_t width, uint32_t height, int32_t hot_x,
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								 int32_t hot_y)
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{
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	struct drm_mode_cursor2 arg;
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	memclear(arg);
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	arg.flags = DRM_MODE_CURSOR_BO;
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	arg.crtc_id = crtcId;
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	arg.width = width;
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	arg.height = height;
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	arg.handle = bo_handle;
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	arg.hot_x = hot_x;
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	arg.hot_y = hot_y;
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR2, &arg;;
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}
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drm_public int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y)
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{
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	struct drm_mode_cursor arg;
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	memclear(arg);
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	arg.flags = DRM_MODE_CURSOR_MOVE;
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	arg.crtc_id = crtcId;
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	arg.x = x;
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	arg.y = y;
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	return DRM_IOCTL(fd, DRM_IOCTL_MODE_CURSOR, &arg;;
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}
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/*
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 * Encoder get
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 */
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drm_public drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id)
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{
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	struct drm_mode_get_encoder enc;
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	drmModeEncoderPtr r = NULL;
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	memclear(enc);
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	enc.encoder_id = encoder_id;
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	if (drmIoctl(fd, DRM_IOCTL_MODE_GETENCODER, &enc))
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		return 0;
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	if (!(r = drmMalloc(sizeof(*r))))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	r->encoder_id = enc.encoder_id;
Packit 631bab
	r->crtc_id = enc.crtc_id;
Packit 631bab
	r->encoder_type = enc.encoder_type;
Packit 631bab
	r->possible_crtcs = enc.possible_crtcs;
Packit 631bab
	r->possible_clones = enc.possible_clones;
Packit 631bab
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
/*
Packit 631bab
 * Connector manipulation
Packit 631bab
 */
Packit 631bab
static drmModeConnectorPtr
Packit 631bab
_drmModeGetConnector(int fd, uint32_t connector_id, int probe)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_connector conn, counts;
Packit 631bab
	drmModeConnectorPtr r = NULL;
Packit 631bab
	struct drm_mode_modeinfo stack_mode;
Packit 631bab
Packit 631bab
	memclear(conn);
Packit 631bab
	conn.connector_id = connector_id;
Packit 631bab
	if (!probe) {
Packit 631bab
		conn.count_modes = 1;
Packit 631bab
		conn.modes_ptr = VOID2U64(&stack_mode);
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
retry:
Packit 631bab
	counts = conn;
Packit 631bab
Packit 631bab
	if (conn.count_props) {
Packit 631bab
		conn.props_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint32_t)));
Packit 631bab
		if (!conn.props_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
		conn.prop_values_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint64_t)));
Packit 631bab
		if (!conn.prop_values_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (conn.count_modes) {
Packit 631bab
		conn.modes_ptr = VOID2U64(drmMalloc(conn.count_modes*sizeof(struct drm_mode_modeinfo)));
Packit 631bab
		if (!conn.modes_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	} else {
Packit 631bab
		conn.count_modes = 1;
Packit 631bab
		conn.modes_ptr = VOID2U64(&stack_mode);
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (conn.count_encoders) {
Packit 631bab
		conn.encoders_ptr = VOID2U64(drmMalloc(conn.count_encoders*sizeof(uint32_t)));
Packit 631bab
		if (!conn.encoders_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	/* The number of available connectors and etc may have changed with a
Packit 631bab
	 * hotplug event in between the ioctls, in which case the field is
Packit 631bab
	 * silently ignored by the kernel.
Packit 631bab
	 */
Packit 631bab
	if (counts.count_props < conn.count_props ||
Packit 631bab
	    counts.count_modes < conn.count_modes ||
Packit 631bab
	    counts.count_encoders < conn.count_encoders) {
Packit 631bab
		drmFree(U642VOID(conn.props_ptr));
Packit 631bab
		drmFree(U642VOID(conn.prop_values_ptr));
Packit 631bab
		if (U642VOID(conn.modes_ptr) != &stack_mode)
Packit 631bab
			drmFree(U642VOID(conn.modes_ptr));
Packit 631bab
		drmFree(U642VOID(conn.encoders_ptr));
Packit 631bab
Packit 631bab
		goto retry;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if(!(r = drmMalloc(sizeof(*r)))) {
Packit 631bab
		goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	r->connector_id = conn.connector_id;
Packit 631bab
	r->encoder_id = conn.encoder_id;
Packit 631bab
	r->connection   = conn.connection;
Packit 631bab
	r->mmWidth      = conn.mm_width;
Packit 631bab
	r->mmHeight     = conn.mm_height;
Packit 631bab
	/* convert subpixel from kernel to userspace */
Packit 631bab
	r->subpixel     = conn.subpixel + 1;
Packit 631bab
	r->count_modes  = conn.count_modes;
Packit 631bab
	r->count_props  = conn.count_props;
Packit 631bab
	r->props        = drmAllocCpy(U642VOID(conn.props_ptr), conn.count_props, sizeof(uint32_t));
Packit 631bab
	r->prop_values  = drmAllocCpy(U642VOID(conn.prop_values_ptr), conn.count_props, sizeof(uint64_t));
Packit 631bab
	r->modes        = drmAllocCpy(U642VOID(conn.modes_ptr), conn.count_modes, sizeof(struct drm_mode_modeinfo));
Packit 631bab
	r->count_encoders = conn.count_encoders;
Packit 631bab
	r->encoders     = drmAllocCpy(U642VOID(conn.encoders_ptr), conn.count_encoders, sizeof(uint32_t));
Packit 631bab
	r->connector_type  = conn.connector_type;
Packit 631bab
	r->connector_type_id = conn.connector_type_id;
Packit 631bab
Packit 631bab
	if ((r->count_props && !r->props) ||
Packit 631bab
	    (r->count_props && !r->prop_values) ||
Packit 631bab
	    (r->count_modes && !r->modes) ||
Packit 631bab
	    (r->count_encoders && !r->encoders)) {
Packit 631bab
		drmFree(r->props);
Packit 631bab
		drmFree(r->prop_values);
Packit 631bab
		drmFree(r->modes);
Packit 631bab
		drmFree(r->encoders);
Packit 631bab
		drmFree(r);
Packit 631bab
		r = 0;
Packit 631bab
	}
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(conn.prop_values_ptr));
Packit 631bab
	drmFree(U642VOID(conn.props_ptr));
Packit 631bab
	if (U642VOID(conn.modes_ptr) != &stack_mode)
Packit 631bab
		drmFree(U642VOID(conn.modes_ptr));
Packit 631bab
	drmFree(U642VOID(conn.encoders_ptr));
Packit 631bab
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeConnectorPtr drmModeGetConnector(int fd, uint32_t connector_id)
Packit 631bab
{
Packit 631bab
	return _drmModeGetConnector(fd, connector_id, 1);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeConnectorPtr drmModeGetConnectorCurrent(int fd, uint32_t connector_id)
Packit 631bab
{
Packit 631bab
	return _drmModeGetConnector(fd, connector_id, 0);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeAttachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info)
Packit 631bab
{
Packit 631bab
	struct drm_mode_mode_cmd res;
Packit 631bab
Packit 631bab
	memclear(res);
Packit 631bab
	memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
Packit 631bab
	res.connector_id = connector_id;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_ATTACHMODE, &res;;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeDetachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info)
Packit 631bab
{
Packit 631bab
	struct drm_mode_mode_cmd res;
Packit 631bab
Packit 631bab
	memclear(res);
Packit 631bab
	memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
Packit 631bab
	res.connector_id = connector_id;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_DETACHMODE, &res;;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_property prop;
Packit 631bab
	drmModePropertyPtr r;
Packit 631bab
Packit 631bab
	memclear(prop);
Packit 631bab
	prop.prop_id = property_id;
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	if (prop.count_values)
Packit 631bab
		prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t)));
Packit 631bab
Packit 631bab
	if (prop.count_enum_blobs && (prop.flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
Packit 631bab
		prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum)));
Packit 631bab
Packit 631bab
	if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_BLOB)) {
Packit 631bab
		prop.values_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
Packit 631bab
		prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) {
Packit 631bab
		r = NULL;
Packit 631bab
		goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (!(r = drmMalloc(sizeof(*r))))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	r->prop_id = prop.prop_id;
Packit 631bab
	r->count_values = prop.count_values;
Packit 631bab
Packit 631bab
	r->flags = prop.flags;
Packit 631bab
	if (prop.count_values)
Packit 631bab
		r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_values, sizeof(uint64_t));
Packit 631bab
	if (prop.flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
Packit 631bab
		r->count_enums = prop.count_enum_blobs;
Packit 631bab
		r->enums = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(struct drm_mode_property_enum));
Packit 631bab
	} else if (prop.flags & DRM_MODE_PROP_BLOB) {
Packit 631bab
		r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_enum_blobs, sizeof(uint32_t));
Packit 631bab
		r->blob_ids = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(uint32_t));
Packit 631bab
		r->count_blobs = prop.count_enum_blobs;
Packit 631bab
	}
Packit 631bab
	strncpy(r->name, prop.name, DRM_PROP_NAME_LEN);
Packit 631bab
	r->name[DRM_PROP_NAME_LEN-1] = 0;
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(prop.values_ptr));
Packit 631bab
	drmFree(U642VOID(prop.enum_blob_ptr));
Packit 631bab
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeFreeProperty(drmModePropertyPtr ptr)
Packit 631bab
{
Packit 631bab
	if (!ptr)
Packit 631bab
		return;
Packit 631bab
Packit 631bab
	drmFree(ptr->values);
Packit 631bab
	drmFree(ptr->enums);
Packit 631bab
	drmFree(ptr);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd,
Packit 631bab
														 uint32_t blob_id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_blob blob;
Packit 631bab
	drmModePropertyBlobPtr r;
Packit 631bab
Packit 631bab
	memclear(blob);
Packit 631bab
	blob.blob_id = blob_id;
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob))
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	if (blob.length)
Packit 631bab
		blob.data = VOID2U64(drmMalloc(blob.length));
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) {
Packit 631bab
		r = NULL;
Packit 631bab
		goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (!(r = drmMalloc(sizeof(*r))))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	r->id = blob.blob_id;
Packit 631bab
	r->length = blob.length;
Packit 631bab
	r->data = drmAllocCpy(U642VOID(blob.data), 1, blob.length);
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(blob.data));
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr)
Packit 631bab
{
Packit 631bab
	if (!ptr)
Packit 631bab
		return;
Packit 631bab
Packit 631bab
	drmFree(ptr->data);
Packit 631bab
	drmFree(ptr);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeConnectorSetProperty(int fd, uint32_t connector_id,
Packit 631bab
										   uint32_t property_id,
Packit 631bab
										   uint64_t value)
Packit 631bab
{
Packit 631bab
	struct drm_mode_connector_set_property osp;
Packit 631bab
Packit 631bab
	memclear(osp);
Packit 631bab
	osp.connector_id = connector_id;
Packit 631bab
	osp.prop_id = property_id;
Packit 631bab
	osp.value = value;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp;;
Packit 631bab
}
Packit 631bab
Packit 631bab
/*
Packit 631bab
 * checks if a modesetting capable driver has attached to the pci id
Packit 631bab
 * returns 0 if modesetting supported.
Packit 631bab
 *  -EINVAL or invalid bus id
Packit 631bab
 *  -ENOSYS if no modesetting support
Packit 631bab
*/
Packit 631bab
drm_public int drmCheckModesettingSupported(const char *busid)
Packit 631bab
{
Packit 631bab
#if defined (__linux__)
Packit 631bab
	char pci_dev_dir[1024];
Packit 631bab
	int domain, bus, dev, func;
Packit 631bab
	DIR *sysdir;
Packit 631bab
	struct dirent *dent;
Packit 631bab
	int found = 0, ret;
Packit 631bab
Packit 631bab
	ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev, &func);
Packit 631bab
	if (ret != 4)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm",
Packit 631bab
		domain, bus, dev, func);
Packit 631bab
Packit 631bab
	sysdir = opendir(pci_dev_dir);
Packit 631bab
	if (sysdir) {
Packit 631bab
		dent = readdir(sysdir);
Packit 631bab
		while (dent) {
Packit 631bab
			if (!strncmp(dent->d_name, "controlD", 8)) {
Packit 631bab
				found = 1;
Packit 631bab
				break;
Packit 631bab
			}
Packit 631bab
Packit 631bab
			dent = readdir(sysdir);
Packit 631bab
		}
Packit 631bab
		closedir(sysdir);
Packit 631bab
		if (found)
Packit 631bab
			return 0;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/",
Packit 631bab
		domain, bus, dev, func);
Packit 631bab
Packit 631bab
	sysdir = opendir(pci_dev_dir);
Packit 631bab
	if (!sysdir)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	dent = readdir(sysdir);
Packit 631bab
	while (dent) {
Packit 631bab
		if (!strncmp(dent->d_name, "drm:controlD", 12)) {
Packit 631bab
			found = 1;
Packit 631bab
			break;
Packit 631bab
		}
Packit 631bab
Packit 631bab
		dent = readdir(sysdir);
Packit 631bab
	}
Packit 631bab
Packit 631bab
	closedir(sysdir);
Packit 631bab
	if (found)
Packit 631bab
		return 0;
Packit 631bab
#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
Packit 631bab
	char kbusid[1024], sbusid[1024];
Packit 631bab
	char oid[128];
Packit 631bab
	int domain, bus, dev, func;
Packit 631bab
	int i, modesetting, ret;
Packit 631bab
	size_t len;
Packit 631bab
Packit 631bab
	ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev,
Packit 631bab
	    &func);
Packit 631bab
	if (ret != 4)
Packit 631bab
		return -EINVAL;
Packit 631bab
	snprintf(kbusid, sizeof(kbusid), "pci:%04x:%02x:%02x.%d", domain, bus,
Packit 631bab
	    dev, func);
Packit 631bab
Packit 631bab
	/* How many GPUs do we expect in the machine ? */
Packit 631bab
	for (i = 0; i < 16; i++) {
Packit 631bab
		snprintf(oid, sizeof(oid), "hw.dri.%d.busid", i);
Packit 631bab
		len = sizeof(sbusid);
Packit 631bab
		ret = sysctlbyname(oid, sbusid, &len, NULL, 0);
Packit 631bab
		if (ret == -1) {
Packit 631bab
			if (errno == ENOENT)
Packit 631bab
				continue;
Packit 631bab
			return -EINVAL;
Packit 631bab
		}
Packit 631bab
		if (strcmp(sbusid, kbusid) != 0)
Packit 631bab
			continue;
Packit 631bab
		snprintf(oid, sizeof(oid), "hw.dri.%d.modesetting", i);
Packit 631bab
		len = sizeof(modesetting);
Packit 631bab
		ret = sysctlbyname(oid, &modesetting, &len, NULL, 0);
Packit 631bab
		if (ret == -1 || len != sizeof(modesetting))
Packit 631bab
			return -EINVAL;
Packit 631bab
		return (modesetting ? 0 : -ENOSYS);
Packit 631bab
	}
Packit 631bab
#elif defined(__DragonFly__)
Packit 631bab
	return 0;
Packit 631bab
#elif defined(__OpenBSD__)
Packit 631bab
	int	fd;
Packit 631bab
	struct drm_mode_card_res res;
Packit 631bab
	drmModeResPtr r = 0;
Packit 631bab
Packit 631bab
	if ((fd = drmOpen(NULL, busid)) < 0)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	memset(&res, 0, sizeof(struct drm_mode_card_res));
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) {
Packit 631bab
		drmClose(fd);
Packit 631bab
		return -errno;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	drmClose(fd);
Packit 631bab
	return 0;
Packit 631bab
#endif
Packit 631bab
	return -ENOSYS;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
Packit 631bab
								   uint16_t *red, uint16_t *green,
Packit 631bab
								   uint16_t *blue)
Packit 631bab
{
Packit 631bab
	struct drm_mode_crtc_lut l;
Packit 631bab
Packit 631bab
	memclear(l);
Packit 631bab
	l.crtc_id = crtc_id;
Packit 631bab
	l.gamma_size = size;
Packit 631bab
	l.red = VOID2U64(red);
Packit 631bab
	l.green = VOID2U64(green);
Packit 631bab
	l.blue = VOID2U64(blue);
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_GETGAMMA, &l);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size,
Packit 631bab
								   uint16_t *red, uint16_t *green,
Packit 631bab
								   uint16_t *blue)
Packit 631bab
{
Packit 631bab
	struct drm_mode_crtc_lut l;
Packit 631bab
Packit 631bab
	memclear(l);
Packit 631bab
	l.crtc_id = crtc_id;
Packit 631bab
	l.gamma_size = size;
Packit 631bab
	l.red = VOID2U64(red);
Packit 631bab
	l.green = VOID2U64(green);
Packit 631bab
	l.blue = VOID2U64(blue);
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETGAMMA, &l);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmHandleEvent(int fd, drmEventContextPtr evctx)
Packit 631bab
{
Packit 631bab
	char buffer[1024];
Packit 631bab
	int len, i;
Packit 631bab
	struct drm_event *e;
Packit 631bab
	struct drm_event_vblank *vblank;
Packit 631bab
	struct drm_event_crtc_sequence *seq;
Packit 631bab
	void *user_data;
Packit 631bab
Packit 631bab
	/* The DRM read semantics guarantees that we always get only
Packit 631bab
	 * complete events. */
Packit 631bab
Packit 631bab
	len = read(fd, buffer, sizeof buffer);
Packit 631bab
	if (len == 0)
Packit 631bab
		return 0;
Packit 631bab
	if (len < (int)sizeof *e)
Packit 631bab
		return -1;
Packit 631bab
Packit 631bab
	i = 0;
Packit 631bab
	while (i < len) {
Packit 631bab
		e = (struct drm_event *)(buffer + i);
Packit 631bab
		switch (e->type) {
Packit 631bab
		case DRM_EVENT_VBLANK:
Packit 631bab
			if (evctx->version < 1 ||
Packit 631bab
			    evctx->vblank_handler == NULL)
Packit 631bab
				break;
Packit 631bab
			vblank = (struct drm_event_vblank *) e;
Packit 631bab
			evctx->vblank_handler(fd,
Packit 631bab
					      vblank->sequence,
Packit 631bab
					      vblank->tv_sec,
Packit 631bab
					      vblank->tv_usec,
Packit 631bab
					      U642VOID (vblank->user_data));
Packit 631bab
			break;
Packit 631bab
		case DRM_EVENT_FLIP_COMPLETE:
Packit 631bab
			vblank = (struct drm_event_vblank *) e;
Packit 631bab
			user_data = U642VOID (vblank->user_data);
Packit 631bab
Packit 631bab
			if (evctx->version >= 3 && evctx->page_flip_handler2)
Packit 631bab
				evctx->page_flip_handler2(fd,
Packit 631bab
							 vblank->sequence,
Packit 631bab
							 vblank->tv_sec,
Packit 631bab
							 vblank->tv_usec,
Packit 631bab
							 vblank->crtc_id,
Packit 631bab
							 user_data);
Packit 631bab
			else if (evctx->version >= 2 && evctx->page_flip_handler)
Packit 631bab
				evctx->page_flip_handler(fd,
Packit 631bab
							 vblank->sequence,
Packit 631bab
							 vblank->tv_sec,
Packit 631bab
							 vblank->tv_usec,
Packit 631bab
							 user_data);
Packit 631bab
			break;
Packit 631bab
		case DRM_EVENT_CRTC_SEQUENCE:
Packit 631bab
			seq = (struct drm_event_crtc_sequence *) e;
Packit 631bab
			if (evctx->version >= 4 && evctx->sequence_handler)
Packit 631bab
				evctx->sequence_handler(fd,
Packit 631bab
							seq->sequence,
Packit 631bab
							seq->time_ns,
Packit 631bab
							seq->user_data);
Packit 631bab
			break;
Packit 631bab
		default:
Packit 631bab
			break;
Packit 631bab
		}
Packit 631bab
		i += e->length;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	return 0;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id,
Packit 631bab
		    uint32_t flags, void *user_data)
Packit 631bab
{
Packit 631bab
	struct drm_mode_crtc_page_flip flip;
Packit 631bab
Packit 631bab
	memclear(flip);
Packit 631bab
	flip.fb_id = fb_id;
Packit 631bab
	flip.crtc_id = crtc_id;
Packit 631bab
	flip.user_data = VOID2U64(user_data);
Packit 631bab
	flip.flags = flags;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_PAGE_FLIP, &flip);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModePageFlipTarget(int fd, uint32_t crtc_id, uint32_t fb_id,
Packit 631bab
			  uint32_t flags, void *user_data,
Packit 631bab
			  uint32_t target_vblank)
Packit 631bab
{
Packit 631bab
	struct drm_mode_crtc_page_flip_target flip_target;
Packit 631bab
Packit 631bab
	memclear(flip_target);
Packit 631bab
	flip_target.fb_id = fb_id;
Packit 631bab
	flip_target.crtc_id = crtc_id;
Packit 631bab
	flip_target.user_data = VOID2U64(user_data);
Packit 631bab
	flip_target.flags = flags;
Packit 631bab
	flip_target.sequence = target_vblank;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_PAGE_FLIP, &flip_target);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id,
Packit 631bab
		    uint32_t fb_id, uint32_t flags,
Packit 631bab
		    int32_t crtc_x, int32_t crtc_y,
Packit 631bab
		    uint32_t crtc_w, uint32_t crtc_h,
Packit 631bab
		    uint32_t src_x, uint32_t src_y,
Packit 631bab
		    uint32_t src_w, uint32_t src_h)
Packit 631bab
{
Packit 631bab
	struct drm_mode_set_plane s;
Packit 631bab
Packit 631bab
	memclear(s);
Packit 631bab
	s.plane_id = plane_id;
Packit 631bab
	s.crtc_id = crtc_id;
Packit 631bab
	s.fb_id = fb_id;
Packit 631bab
	s.flags = flags;
Packit 631bab
	s.crtc_x = crtc_x;
Packit 631bab
	s.crtc_y = crtc_y;
Packit 631bab
	s.crtc_w = crtc_w;
Packit 631bab
	s.crtc_h = crtc_h;
Packit 631bab
	s.src_x = src_x;
Packit 631bab
	s.src_y = src_y;
Packit 631bab
	s.src_w = src_w;
Packit 631bab
	s.src_h = src_h;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETPLANE, &s);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModePlanePtr drmModeGetPlane(int fd, uint32_t plane_id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_plane ovr, counts;
Packit 631bab
	drmModePlanePtr r = 0;
Packit 631bab
Packit 631bab
retry:
Packit 631bab
	memclear(ovr);
Packit 631bab
	ovr.plane_id = plane_id;
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	counts = ovr;
Packit 631bab
Packit 631bab
	if (ovr.count_format_types) {
Packit 631bab
		ovr.format_type_ptr = VOID2U64(drmMalloc(ovr.count_format_types *
Packit 631bab
							 sizeof(uint32_t)));
Packit 631bab
		if (!ovr.format_type_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANE, &ovr))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	if (counts.count_format_types < ovr.count_format_types) {
Packit 631bab
		drmFree(U642VOID(ovr.format_type_ptr));
Packit 631bab
		goto retry;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (!(r = drmMalloc(sizeof(*r))))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	r->count_formats = ovr.count_format_types;
Packit 631bab
	r->plane_id = ovr.plane_id;
Packit 631bab
	r->crtc_id = ovr.crtc_id;
Packit 631bab
	r->fb_id = ovr.fb_id;
Packit 631bab
	r->possible_crtcs = ovr.possible_crtcs;
Packit 631bab
	r->gamma_size = ovr.gamma_size;
Packit 631bab
	r->formats = drmAllocCpy(U642VOID(ovr.format_type_ptr),
Packit 631bab
				 ovr.count_format_types, sizeof(uint32_t));
Packit 631bab
	if (ovr.count_format_types && !r->formats) {
Packit 631bab
		drmFree(r->formats);
Packit 631bab
		drmFree(r);
Packit 631bab
		r = 0;
Packit 631bab
	}
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(ovr.format_type_ptr));
Packit 631bab
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeFreePlane(drmModePlanePtr ptr)
Packit 631bab
{
Packit 631bab
	if (!ptr)
Packit 631bab
		return;
Packit 631bab
Packit 631bab
	drmFree(ptr->formats);
Packit 631bab
	drmFree(ptr);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModePlaneResPtr drmModeGetPlaneResources(int fd)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_plane_res res, counts;
Packit 631bab
	drmModePlaneResPtr r = 0;
Packit 631bab
Packit 631bab
retry:
Packit 631bab
	memclear(res);
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	counts = res;
Packit 631bab
Packit 631bab
	if (res.count_planes) {
Packit 631bab
		res.plane_id_ptr = VOID2U64(drmMalloc(res.count_planes *
Packit 631bab
							sizeof(uint32_t)));
Packit 631bab
		if (!res.plane_id_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_GETPLANERESOURCES, &res))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	if (counts.count_planes < res.count_planes) {
Packit 631bab
		drmFree(U642VOID(res.plane_id_ptr));
Packit 631bab
		goto retry;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (!(r = drmMalloc(sizeof(*r))))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	r->count_planes = res.count_planes;
Packit 631bab
	r->planes = drmAllocCpy(U642VOID(res.plane_id_ptr),
Packit 631bab
				  res.count_planes, sizeof(uint32_t));
Packit 631bab
	if (res.count_planes && !r->planes) {
Packit 631bab
		drmFree(r->planes);
Packit 631bab
		drmFree(r);
Packit 631bab
		r = 0;
Packit 631bab
	}
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(res.plane_id_ptr));
Packit 631bab
Packit 631bab
	return r;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeFreePlaneResources(drmModePlaneResPtr ptr)
Packit 631bab
{
Packit 631bab
	if (!ptr)
Packit 631bab
		return;
Packit 631bab
Packit 631bab
	drmFree(ptr->planes);
Packit 631bab
	drmFree(ptr);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeObjectPropertiesPtr drmModeObjectGetProperties(int fd,
Packit 631bab
						      uint32_t object_id,
Packit 631bab
						      uint32_t object_type)
Packit 631bab
{
Packit 631bab
	struct drm_mode_obj_get_properties properties;
Packit 631bab
	drmModeObjectPropertiesPtr ret = NULL;
Packit 631bab
	uint32_t count;
Packit 631bab
Packit 631bab
retry:
Packit 631bab
	memclear(properties);
Packit 631bab
	properties.obj_id = object_id;
Packit 631bab
	properties.obj_type = object_type;
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties))
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	count = properties.count_props;
Packit 631bab
Packit 631bab
	if (count) {
Packit 631bab
		properties.props_ptr = VOID2U64(drmMalloc(count *
Packit 631bab
							  sizeof(uint32_t)));
Packit 631bab
		if (!properties.props_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
		properties.prop_values_ptr = VOID2U64(drmMalloc(count *
Packit 631bab
						      sizeof(uint64_t)));
Packit 631bab
		if (!properties.prop_values_ptr)
Packit 631bab
			goto err_allocs;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	if (drmIoctl(fd, DRM_IOCTL_MODE_OBJ_GETPROPERTIES, &properties))
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	if (count < properties.count_props) {
Packit 631bab
		drmFree(U642VOID(properties.props_ptr));
Packit 631bab
		drmFree(U642VOID(properties.prop_values_ptr));
Packit 631bab
		goto retry;
Packit 631bab
	}
Packit 631bab
	count = properties.count_props;
Packit 631bab
Packit 631bab
	ret = drmMalloc(sizeof(*ret));
Packit 631bab
	if (!ret)
Packit 631bab
		goto err_allocs;
Packit 631bab
Packit 631bab
	ret->count_props = count;
Packit 631bab
	ret->props = drmAllocCpy(U642VOID(properties.props_ptr),
Packit 631bab
				 count, sizeof(uint32_t));
Packit 631bab
	ret->prop_values = drmAllocCpy(U642VOID(properties.prop_values_ptr),
Packit 631bab
				       count, sizeof(uint64_t));
Packit 631bab
	if (ret->count_props && (!ret->props || !ret->prop_values)) {
Packit 631bab
		drmFree(ret->props);
Packit 631bab
		drmFree(ret->prop_values);
Packit 631bab
		drmFree(ret);
Packit 631bab
		ret = NULL;
Packit 631bab
	}
Packit 631bab
Packit 631bab
err_allocs:
Packit 631bab
	drmFree(U642VOID(properties.props_ptr));
Packit 631bab
	drmFree(U642VOID(properties.prop_values_ptr));
Packit 631bab
	return ret;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeFreeObjectProperties(drmModeObjectPropertiesPtr ptr)
Packit 631bab
{
Packit 631bab
	if (!ptr)
Packit 631bab
		return;
Packit 631bab
	drmFree(ptr->props);
Packit 631bab
	drmFree(ptr->prop_values);
Packit 631bab
	drmFree(ptr);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeObjectSetProperty(int fd, uint32_t object_id, uint32_t object_type,
Packit 631bab
			     uint32_t property_id, uint64_t value)
Packit 631bab
{
Packit 631bab
	struct drm_mode_obj_set_property prop;
Packit 631bab
Packit 631bab
	memclear(prop);
Packit 631bab
	prop.value = value;
Packit 631bab
	prop.prop_id = property_id;
Packit 631bab
	prop.obj_id = object_id;
Packit 631bab
	prop.obj_type = object_type;
Packit 631bab
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_OBJ_SETPROPERTY, &prop);
Packit 631bab
}
Packit 631bab
Packit 631bab
typedef struct _drmModeAtomicReqItem drmModeAtomicReqItem, *drmModeAtomicReqItemPtr;
Packit 631bab
Packit 631bab
struct _drmModeAtomicReqItem {
Packit 631bab
	uint32_t object_id;
Packit 631bab
	uint32_t property_id;
Packit 631bab
	uint64_t value;
Packit 631bab
};
Packit 631bab
Packit 631bab
struct _drmModeAtomicReq {
Packit 631bab
	uint32_t cursor;
Packit 631bab
	uint32_t size_items;
Packit 631bab
	drmModeAtomicReqItemPtr items;
Packit 631bab
};
Packit 631bab
Packit 631bab
drm_public drmModeAtomicReqPtr drmModeAtomicAlloc(void)
Packit 631bab
{
Packit 631bab
	drmModeAtomicReqPtr req;
Packit 631bab
Packit 631bab
	req = drmMalloc(sizeof *req);
Packit 631bab
	if (!req)
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	req->items = NULL;
Packit 631bab
	req->cursor = 0;
Packit 631bab
	req->size_items = 0;
Packit 631bab
Packit 631bab
	return req;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeAtomicReqPtr drmModeAtomicDuplicate(drmModeAtomicReqPtr old)
Packit 631bab
{
Packit 631bab
	drmModeAtomicReqPtr new;
Packit 631bab
Packit 631bab
	if (!old)
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	new = drmMalloc(sizeof *new);
Packit 631bab
	if (!new)
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	new->cursor = old->cursor;
Packit 631bab
	new->size_items = old->size_items;
Packit 631bab
Packit 631bab
	if (old->size_items) {
Packit 631bab
		new->items = drmMalloc(old->size_items * sizeof(*new->items));
Packit 631bab
		if (!new->items) {
Packit 631bab
			free(new);
Packit 631bab
			return NULL;
Packit 631bab
		}
Packit 631bab
		memcpy(new->items, old->items,
Packit 631bab
		       old->cursor * sizeof(*new->items));
Packit 631bab
	} else {
Packit 631bab
		new->items = NULL;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	return new;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeAtomicMerge(drmModeAtomicReqPtr base,
Packit 631bab
                                  drmModeAtomicReqPtr augment)
Packit 631bab
{
Packit 631bab
	if (!base)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	if (!augment || augment->cursor == 0)
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	if (base->cursor + augment->cursor >= base->size_items) {
Packit 631bab
		drmModeAtomicReqItemPtr new;
Packit 631bab
		int saved_size = base->size_items;
Packit 631bab
Packit 631bab
		base->size_items = base->cursor + augment->cursor;
Packit 631bab
		new = realloc(base->items,
Packit 631bab
			      base->size_items * sizeof(*base->items));
Packit 631bab
		if (!new) {
Packit 631bab
			base->size_items = saved_size;
Packit 631bab
			return -ENOMEM;
Packit 631bab
		}
Packit 631bab
		base->items = new;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	memcpy(&base->items[base->cursor], augment->items,
Packit 631bab
	       augment->cursor * sizeof(*augment->items));
Packit 631bab
	base->cursor += augment->cursor;
Packit 631bab
Packit 631bab
	return 0;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeAtomicGetCursor(drmModeAtomicReqPtr req)
Packit 631bab
{
Packit 631bab
	if (!req)
Packit 631bab
		return -EINVAL;
Packit 631bab
	return req->cursor;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeAtomicSetCursor(drmModeAtomicReqPtr req, int cursor)
Packit 631bab
{
Packit 631bab
	if (req)
Packit 631bab
		req->cursor = cursor;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeAtomicAddProperty(drmModeAtomicReqPtr req,
Packit 631bab
                                        uint32_t object_id,
Packit 631bab
                                        uint32_t property_id,
Packit 631bab
                                        uint64_t value)
Packit 631bab
{
Packit 631bab
	if (!req)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	if (object_id == 0 || property_id == 0)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	if (req->cursor >= req->size_items) {
Packit 631bab
		const uint32_t item_size_inc = getpagesize() / sizeof(*req->items);
Packit 631bab
		drmModeAtomicReqItemPtr new;
Packit 631bab
Packit 631bab
		req->size_items += item_size_inc;
Packit 631bab
		new = realloc(req->items, req->size_items * sizeof(*req->items));
Packit 631bab
		if (!new) {
Packit 631bab
			req->size_items -= item_size_inc;
Packit 631bab
			return -ENOMEM;
Packit 631bab
		}
Packit 631bab
		req->items = new;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	req->items[req->cursor].object_id = object_id;
Packit 631bab
	req->items[req->cursor].property_id = property_id;
Packit 631bab
	req->items[req->cursor].value = value;
Packit 631bab
	req->cursor++;
Packit 631bab
Packit 631bab
	return req->cursor;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public void drmModeAtomicFree(drmModeAtomicReqPtr req)
Packit 631bab
{
Packit 631bab
	if (!req)
Packit 631bab
		return;
Packit 631bab
Packit 631bab
	if (req->items)
Packit 631bab
		drmFree(req->items);
Packit 631bab
	drmFree(req);
Packit 631bab
}
Packit 631bab
Packit 631bab
static int sort_req_list(const void *misc, const void *other)
Packit 631bab
{
Packit 631bab
	const drmModeAtomicReqItem *first = misc;
Packit 631bab
	const drmModeAtomicReqItem *second = other;
Packit 631bab
Packit 631bab
	if (first->object_id < second->object_id)
Packit 631bab
		return -1;
Packit 631bab
	else if (first->object_id > second->object_id)
Packit 631bab
		return 1;
Packit 631bab
	else
Packit 631bab
		return second->property_id - first->property_id;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int drmModeAtomicCommit(int fd, drmModeAtomicReqPtr req,
Packit 631bab
                                   uint32_t flags, void *user_data)
Packit 631bab
{
Packit 631bab
	drmModeAtomicReqPtr sorted;
Packit 631bab
	struct drm_mode_atomic atomic;
Packit 631bab
	uint32_t *objs_ptr = NULL;
Packit 631bab
	uint32_t *count_props_ptr = NULL;
Packit 631bab
	uint32_t *props_ptr = NULL;
Packit 631bab
	uint64_t *prop_values_ptr = NULL;
Packit 631bab
	uint32_t last_obj_id = 0;
Packit 631bab
	uint32_t i;
Packit 631bab
	int obj_idx = -1;
Packit 631bab
	int ret = -1;
Packit 631bab
Packit 631bab
	if (!req)
Packit 631bab
		return -EINVAL;
Packit 631bab
Packit 631bab
	if (req->cursor == 0)
Packit 631bab
		return 0;
Packit 631bab
Packit 631bab
	sorted = drmModeAtomicDuplicate(req);
Packit 631bab
	if (sorted == NULL)
Packit 631bab
		return -ENOMEM;
Packit 631bab
Packit 631bab
	memclear(atomic);
Packit 631bab
Packit 631bab
	/* Sort the list by object ID, then by property ID. */
Packit 631bab
	qsort(sorted->items, sorted->cursor, sizeof(*sorted->items),
Packit 631bab
	      sort_req_list);
Packit 631bab
Packit 631bab
	/* Now the list is sorted, eliminate duplicate property sets. */
Packit 631bab
	for (i = 0; i < sorted->cursor; i++) {
Packit 631bab
		if (sorted->items[i].object_id != last_obj_id) {
Packit 631bab
			atomic.count_objs++;
Packit 631bab
			last_obj_id = sorted->items[i].object_id;
Packit 631bab
		}
Packit 631bab
Packit 631bab
		if (i == sorted->cursor - 1)
Packit 631bab
			continue;
Packit 631bab
Packit 631bab
		if (sorted->items[i].object_id != sorted->items[i + 1].object_id ||
Packit 631bab
		    sorted->items[i].property_id != sorted->items[i + 1].property_id)
Packit 631bab
			continue;
Packit 631bab
Packit 631bab
		memmove(&sorted->items[i], &sorted->items[i + 1],
Packit 631bab
			(sorted->cursor - i - 1) * sizeof(*sorted->items));
Packit 631bab
		sorted->cursor--;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	objs_ptr = drmMalloc(atomic.count_objs * sizeof objs_ptr[0]);
Packit 631bab
	if (!objs_ptr) {
Packit 631bab
		errno = ENOMEM;
Packit 631bab
		goto out;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	count_props_ptr = drmMalloc(atomic.count_objs * sizeof count_props_ptr[0]);
Packit 631bab
	if (!count_props_ptr) {
Packit 631bab
		errno = ENOMEM;
Packit 631bab
		goto out;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	props_ptr = drmMalloc(sorted->cursor * sizeof props_ptr[0]);
Packit 631bab
	if (!props_ptr) {
Packit 631bab
		errno = ENOMEM;
Packit 631bab
		goto out;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	prop_values_ptr = drmMalloc(sorted->cursor * sizeof prop_values_ptr[0]);
Packit 631bab
	if (!prop_values_ptr) {
Packit 631bab
		errno = ENOMEM;
Packit 631bab
		goto out;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	for (i = 0, last_obj_id = 0; i < sorted->cursor; i++) {
Packit 631bab
		if (sorted->items[i].object_id != last_obj_id) {
Packit 631bab
			obj_idx++;
Packit 631bab
			objs_ptr[obj_idx] = sorted->items[i].object_id;
Packit 631bab
			last_obj_id = objs_ptr[obj_idx];
Packit 631bab
		}
Packit 631bab
Packit 631bab
		count_props_ptr[obj_idx]++;
Packit 631bab
		props_ptr[i] = sorted->items[i].property_id;
Packit 631bab
		prop_values_ptr[i] = sorted->items[i].value;
Packit 631bab
Packit 631bab
	}
Packit 631bab
Packit 631bab
	atomic.flags = flags;
Packit 631bab
	atomic.objs_ptr = VOID2U64(objs_ptr);
Packit 631bab
	atomic.count_props_ptr = VOID2U64(count_props_ptr);
Packit 631bab
	atomic.props_ptr = VOID2U64(props_ptr);
Packit 631bab
	atomic.prop_values_ptr = VOID2U64(prop_values_ptr);
Packit 631bab
	atomic.user_data = VOID2U64(user_data);
Packit 631bab
Packit 631bab
	ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ATOMIC, &atomic);
Packit 631bab
Packit 631bab
out:
Packit 631bab
	drmFree(objs_ptr);
Packit 631bab
	drmFree(count_props_ptr);
Packit 631bab
	drmFree(props_ptr);
Packit 631bab
	drmFree(prop_values_ptr);
Packit 631bab
	drmModeAtomicFree(sorted);
Packit 631bab
Packit 631bab
	return ret;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int
Packit 631bab
drmModeCreatePropertyBlob(int fd, const void *data, size_t length,
Packit 631bab
                                     uint32_t *id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_create_blob create;
Packit 631bab
	int ret;
Packit 631bab
Packit 631bab
	if (length >= 0xffffffff)
Packit 631bab
		return -ERANGE;
Packit 631bab
Packit 631bab
	memclear(create);
Packit 631bab
Packit 631bab
	create.length = length;
Packit 631bab
	create.data = (uintptr_t) data;
Packit 631bab
	create.blob_id = 0;
Packit 631bab
	*id = 0;
Packit 631bab
Packit 631bab
	ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &create);
Packit 631bab
	if (ret != 0)
Packit 631bab
		return ret;
Packit 631bab
Packit 631bab
	*id = create.blob_id;
Packit 631bab
	return 0;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int
Packit 631bab
drmModeDestroyPropertyBlob(int fd, uint32_t id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_destroy_blob destroy;
Packit 631bab
Packit 631bab
	memclear(destroy);
Packit 631bab
	destroy.blob_id = id;
Packit 631bab
	return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy);
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int
Packit 631bab
drmModeCreateLease(int fd, const uint32_t *objects, int num_objects, int flags,
Packit 631bab
                   uint32_t *lessee_id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_create_lease create;
Packit 631bab
	int ret;
Packit 631bab
Packit 631bab
	memclear(create);
Packit 631bab
	create.object_ids = (uintptr_t) objects;
Packit 631bab
	create.object_count = num_objects;
Packit 631bab
	create.flags = flags;
Packit 631bab
Packit 631bab
	ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATE_LEASE, &create);
Packit 631bab
	if (ret == 0) {
Packit 631bab
		*lessee_id = create.lessee_id;
Packit 631bab
		return create.fd;
Packit 631bab
	}
Packit 631bab
	return -errno;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeLesseeListPtr
Packit 631bab
drmModeListLessees(int fd)
Packit 631bab
{
Packit 631bab
	struct drm_mode_list_lessees list;
Packit 631bab
	uint32_t count;
Packit 631bab
	drmModeLesseeListPtr ret;
Packit 631bab
Packit 631bab
	memclear(list);
Packit 631bab
Packit 631bab
	if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list))
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	count = list.count_lessees;
Packit 631bab
	ret = drmMalloc(sizeof (drmModeLesseeListRes) + count * sizeof (ret->lessees[0]));
Packit 631bab
	if (!ret)
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	list.lessees_ptr = VOID2U64(&ret->lessees[0]);
Packit 631bab
	if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list)) {
Packit 631bab
		drmFree(ret);
Packit 631bab
		return NULL;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	ret->count = count;
Packit 631bab
	return ret;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public drmModeObjectListPtr
Packit 631bab
drmModeGetLease(int fd)
Packit 631bab
{
Packit 631bab
	struct drm_mode_get_lease get;
Packit 631bab
	uint32_t count;
Packit 631bab
	drmModeObjectListPtr ret;
Packit 631bab
Packit 631bab
	memclear(get);
Packit 631bab
Packit 631bab
	if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get))
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	count = get.count_objects;
Packit 631bab
	ret = drmMalloc(sizeof (drmModeObjectListRes) + count * sizeof (ret->objects[0]));
Packit 631bab
	if (!ret)
Packit 631bab
		return NULL;
Packit 631bab
Packit 631bab
	get.objects_ptr = VOID2U64(&ret->objects[0]);
Packit 631bab
	if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get)) {
Packit 631bab
		drmFree(ret);
Packit 631bab
		return NULL;
Packit 631bab
	}
Packit 631bab
Packit 631bab
	ret->count = count;
Packit 631bab
	return ret;
Packit 631bab
}
Packit 631bab
Packit 631bab
drm_public int
Packit 631bab
drmModeRevokeLease(int fd, uint32_t lessee_id)
Packit 631bab
{
Packit 631bab
	struct drm_mode_revoke_lease revoke;
Packit 631bab
	int ret;
Packit 631bab
Packit 631bab
	memclear(revoke);
Packit 631bab
Packit 631bab
	revoke.lessee_id = lessee_id;
Packit 631bab
Packit 631bab
	ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_REVOKE_LEASE, &revoke);
Packit 631bab
	if (ret == 0)
Packit 631bab
		return 0;
Packit 631bab
	return -errno;
Packit 631bab
}
Packit Service 856e4e
Packit Service 856e4e
drm_public drmModeFB2Ptr
Packit Service 856e4e
drmModeGetFB2(int fd, uint32_t fb_id)
Packit Service 856e4e
{
Packit Service 856e4e
	struct drm_mode_fb_cmd2 get = {
Packit Service 856e4e
		.fb_id = fb_id,
Packit Service 856e4e
	};
Packit Service 856e4e
	drmModeFB2Ptr ret;
Packit Service 856e4e
	int err;
Packit Service 856e4e
Packit Service 856e4e
	err = DRM_IOCTL(fd, DRM_IOCTL_MODE_GETFB2, &get;;
Packit Service 856e4e
	if (err != 0)
Packit Service 856e4e
		return NULL;
Packit Service 856e4e
Packit Service 856e4e
	ret = drmMalloc(sizeof(drmModeFB2));
Packit Service 856e4e
	if (!ret)
Packit Service 856e4e
		return NULL;
Packit Service 856e4e
Packit Service 856e4e
	ret->fb_id = fb_id;
Packit Service 856e4e
	ret->width = get.width;
Packit Service 856e4e
	ret->height = get.height;
Packit Service 856e4e
	ret->pixel_format = get.pixel_format;
Packit Service 856e4e
	ret->flags = get.flags;
Packit Service 856e4e
	ret->modifier = get.modifier[0];
Packit Service 856e4e
	memcpy(ret->handles, get.handles, sizeof(uint32_t) * 4);
Packit Service 856e4e
	memcpy(ret->pitches, get.pitches, sizeof(uint32_t) * 4);
Packit Service 856e4e
	memcpy(ret->offsets, get.offsets, sizeof(uint32_t) * 4);
Packit Service 856e4e
Packit Service 856e4e
	return ret;
Packit Service 856e4e
}
Packit Service 856e4e
Packit Service 856e4e
drm_public void drmModeFreeFB2(drmModeFB2Ptr ptr)
Packit Service 856e4e
{
Packit Service 856e4e
	drmFree(ptr);
Packit Service 856e4e
}