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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2019-10-27 00:36:13 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-08-25 02:58:04 +0300
commitdbafe16da7a9999ec77da21a42537702fb87f124 (patch)
treebf195d3f0feee0efc714267f70d85bfc54b8c63c /src/ipa/raspberrypi/controller/camera_mode.h
parent3ef378731ad89de4dd77e0cb79860cc86676060e (diff)
meson: Remove -Wno-unused-parameter
We build libcamera with -Wno-unused-parameter and this doesn't cause much issue internally. However, it prevents catching unused parameters in inline functions defined in public headers. This can lead to compilation warnings for applications compiled without -Wno-unused-parameter. To catch those issues, remove -Wno-unused-parameter and fix all the related warnings with [[maybe_unused]]. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Diffstat (limited to 'src/ipa/raspberrypi/controller/camera_mode.h')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.1 (git 2.18.0) at 2025-04-28 01:45:05 +0000
id='n82' href='#n82'>82 83 84 85 86 87 88 89 90 91 
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_compat.cpp - V4L2 compatibility layer
 */

#include "v4l2_compat_manager.h"

#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>

#define LIBCAMERA_PUBLIC __attribute__((visibility("default")))

using namespace libcamera;

#define extract_va_arg(type, arg, last)	\
{					\
	va_list ap;			\
	va_start(ap, last);		\
	arg = va_arg(ap, type);		\
	va_end(ap);			\
}

extern "C" {

LIBCAMERA_PUBLIC int open(const char *path, int oflag, ...)
{
	mode_t mode = 0;
	if (oflag & O_CREAT || oflag & O_TMPFILE)
		extract_va_arg(mode_t, mode, oflag);

	return V4L2CompatManager::instance()->openat(AT_FDCWD, path,
						     oflag, mode);
}

/* _FORTIFY_SOURCE redirects open to __open_2 */
LIBCAMERA_PUBLIC int __open_2(const char *path, int oflag)
{
	return open(path, oflag);
}

LIBCAMERA_PUBLIC int openat(int dirfd, const char *path, int oflag, ...)
{
	mode_t mode = 0;
	if (oflag & O_CREAT || oflag & O_TMPFILE)
		extract_va_arg(mode_t, mode, oflag);

	return V4L2CompatManager::instance()->openat(dirfd, path, oflag, mode);
}

LIBCAMERA_PUBLIC int __openat_2(int dirfd, const char *path, int oflag)
{
	return openat(dirfd, path, oflag);
}

LIBCAMERA_PUBLIC int dup(int oldfd)
{
	return V4L2CompatManager::instance()->dup(oldfd);
}

LIBCAMERA_PUBLIC int close(int fd)
{
	return V4L2CompatManager::instance()->close(fd);
}

LIBCAMERA_PUBLIC void *mmap(void *addr, size_t length, int prot, int flags,
			    int fd, off_t offset)
{
	return V4L2CompatManager::instance()->mmap(addr, length, prot, flags,
						   fd, offset);
}

LIBCAMERA_PUBLIC int munmap(void *addr, size_t length)
{
	return V4L2CompatManager::instance()->munmap(addr, length);
}

LIBCAMERA_PUBLIC int ioctl(int fd, unsigned long request, ...)
{
	void *arg;
	extract_va_arg(void *, arg, request);

	return V4L2CompatManager::instance()->ioctl(fd, request, arg);
}

}