[mirror_qemu.git] / ui / udmabuf.c

/*
 * udmabuf helper functions.
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "ui/console.h"
#include "qemu/error-report.h"

#include <sys/ioctl.h>

int udmabuf_fd(void)
{
    static bool first = true;
    static int udmabuf;

    if (!first) {
        return udmabuf;
    }
    first = false;

    udmabuf = open("/dev/udmabuf", O_RDWR);
    if (udmabuf < 0) {
        warn_report("open /dev/udmabuf: %s", strerror(errno));
    }
    return udmabuf;
}
Commit	Line	Data
87f12216 VK	1	/*
	2	* udmabuf helper functions.
	3	*
	4	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	5	* See the COPYING file in the top-level directory.
	6	*/
	7	#include "qemu/osdep.h"
	8	#include "qapi/error.h"
	9	#include "ui/console.h"
5feed38c	10	#include "qemu/error-report.h"
87f12216	11
87f12216 VK	12	#include <sys/ioctl.h>
	13
	14	int udmabuf_fd(void)
	15	{
	16	static bool first = true;
	17	static int udmabuf;
	18
	19	if (!first) {
	20	return udmabuf;
	21	}
	22	first = false;
	23
	24	udmabuf = open("/dev/udmabuf", O_RDWR);
	25	if (udmabuf < 0) {
	26	warn_report("open /dev/udmabuf: %s", strerror(errno));
	27	}
	28	return udmabuf;
	29	}