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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/media_tests/media_device_open.c | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/media_tests/media_device_open.c')
-rw-r--r-- | tools/testing/selftests/media_tests/media_device_open.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/tools/testing/selftests/media_tests/media_device_open.c b/tools/testing/selftests/media_tests/media_device_open.c new file mode 100644 index 000000000..93183a37b --- /dev/null +++ b/tools/testing/selftests/media_tests/media_device_open.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * media_device_open.c - Media Controller Device Open Test + * + * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com> + * Copyright (c) 2016 Samsung Electronics Co., Ltd. + * + */ + +/* + * This file adds a test for Media Controller API. + * This test should be run as root and should not be + * included in the Kselftest run. This test should be + * run when hardware and driver that makes use Media + * Controller API are present in the system. + * + * This test opens user specified Media Device and calls + * MEDIA_IOC_DEVICE_INFO ioctl, closes the file, and exits. + * + * Usage: + * sudo ./media_device_open -d /dev/mediaX + * + * Run this test is a loop and run bind/unbind on the driver. +*/ + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <sys/ioctl.h> +#include <sys/stat.h> +#include <linux/media.h> + +#include "../kselftest.h" + +int main(int argc, char **argv) +{ + int opt; + char media_device[256]; + int count = 0; + struct media_device_info mdi; + int ret; + int fd; + + if (argc < 2) { + printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]); + exit(-1); + } + + /* Process arguments */ + while ((opt = getopt(argc, argv, "d:")) != -1) { + switch (opt) { + case 'd': + strncpy(media_device, optarg, sizeof(media_device) - 1); + media_device[sizeof(media_device)-1] = '\0'; + break; + default: + printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]); + exit(-1); + } + } + + if (getuid() != 0) + ksft_exit_skip("Please run the test as root - Exiting.\n"); + + /* Open Media device and keep it open */ + fd = open(media_device, O_RDWR); + if (fd == -1) { + printf("Media Device open errno %s\n", strerror(errno)); + exit(-1); + } + + ret = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi); + if (ret < 0) + printf("Media Device Info errno %s\n", strerror(errno)); + else + printf("Media device model %s driver %s\n", + mdi.model, mdi.driver); +} |