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/*
V4L2 API compliance debug ioctl tests.
Copyright (C) 2008, 2010 Hans Verkuil <hverkuil@xs4all.nl>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*/
#include <map>
#include <set>
#include <sys/types.h>
#include "v4l2-compliance.h"
int testRegister(struct node *node)
{
struct v4l2_dbg_register reg;
struct v4l2_dbg_chip_info chip = {};
int ret;
int uid = getuid();
reg.match.type = V4L2_CHIP_MATCH_BRIDGE;
reg.match.addr = 0;
reg.reg = 0;
ret = doioctl(node, VIDIOC_DBG_G_REGISTER, ®);
if (ret == ENOTTY)
return ret;
// Not allowed to call VIDIOC_DBG_G_REGISTER unless root
fail_on_test(uid && ret != EPERM);
fail_on_test(uid == 0 && ret && ret != EINVAL);
fail_on_test(uid == 0 && !ret && reg.size == 0);
chip.match.type = V4L2_CHIP_MATCH_BRIDGE;
chip.match.addr = 0;
fail_on_test(doioctl(node, VIDIOC_DBG_G_CHIP_INFO, &chip));
if (uid) {
// Don't test S_REGISTER as root, don't want to risk
// messing with registers in the compliance test.
reg.reg = reg.val = 0;
ret = doioctl(node, VIDIOC_DBG_S_REGISTER, ®);
fail_on_test(ret != ENOTTY && ret != EINVAL && ret != EPERM);
}
return 0;
}
int testLogStatus(struct node *node)
{
return doioctl(node, VIDIOC_LOG_STATUS, nullptr);
}
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