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Diffstat (limited to 'tests/fbdev.c')
-rw-r--r-- | tests/fbdev.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/tests/fbdev.c b/tests/fbdev.c new file mode 100644 index 00000000..fe320b14 --- /dev/null +++ b/tests/fbdev.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2019 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "config.h" + +#include "igt.h" + +#include <fcntl.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> + +#include <linux/fb.h> + +#include "igt.h" + +igt_main +{ + struct fb_var_screeninfo var_info; + struct fb_fix_screeninfo fix_info; + int fd = -1; + + igt_fixture { + fd = open("/dev/fb0", O_RDWR); + igt_require_f(fd != -1, "/dev/fb0\n"); + + igt_require(ioctl(fd, FBIOGET_VSCREENINFO, &var_info) == 0); + igt_require(ioctl(fd, FBIOGET_FSCREENINFO, &fix_info) == 0); + } + + igt_subtest("info") { + unsigned long size; + + size = var_info.yres * fix_info.line_length; + igt_assert_f(size <= fix_info.smem_len, + "screen size (%d x %d) of pitch %d does not fit within mappable area of size %u\n", + var_info.xres, var_info.yres, + fix_info.line_length, + fix_info.smem_len); + } + + igt_subtest("mmap") { + void *map; + + igt_require(fix_info.smem_len); + + map = mmap(NULL, fix_info.smem_len, + PROT_WRITE, MAP_SHARED, fd, 0); + igt_assert(map != MAP_FAILED); + + memset(map, 0, fix_info.smem_len); + munmap(map, fix_info.smem_len); + } + + igt_fixture { + close(fd); + } +} |