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      1 /*
      2  * Copyright  2007 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *    Eric Anholt <eric (at) anholt.net>
     25  *
     26  */
     27 
     28 #include <limits.h>
     29 #include <string.h>
     30 #include <sys/ioctl.h>
     31 #include "drmtest.h"
     32 
     33 /**
     34  * Checks DRM_IOCTL_SET_VERSION.
     35  *
     36  * This tests that we can get the actual version out, and that setting invalid
     37  * major/minor numbers fails appropriately.  It does not check the actual
     38  * behavior differenses resulting from an increased DI version.
     39  */
     40 int main(int argc, char **argv)
     41 {
     42 	int fd, ret;
     43 	drm_set_version_t sv, version;
     44 
     45 	if (getuid() != 0) {
     46 		fprintf(stderr, "setversion test requires root, skipping\n");
     47 		return 0;
     48 	}
     49 
     50 	fd = drm_open_any_master();
     51 
     52 	/* First, check that we can get the DD/DI versions. */
     53 	memset(&version, 0, sizeof(version));
     54 	version.drm_di_major = -1;
     55 	version.drm_di_minor = -1;
     56 	version.drm_dd_major = -1;
     57 	version.drm_dd_minor = -1;
     58 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &version);
     59 	assert(ret == 0);
     60 	assert(version.drm_di_major != -1);
     61 	assert(version.drm_di_minor != -1);
     62 	assert(version.drm_dd_major != -1);
     63 	assert(version.drm_dd_minor != -1);
     64 
     65 	/* Check that an invalid DI major fails */
     66 	sv = version;
     67 	sv.drm_di_major++;
     68 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     69 	assert(ret == -1 && errno == EINVAL);
     70 
     71 	/* Check that an invalid DI minor fails */
     72 	sv = version;
     73 	sv.drm_di_major++;
     74 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     75 	assert(ret == -1 && errno == EINVAL);
     76 
     77 	/* Check that an invalid DD major fails */
     78 	sv = version;
     79 	sv.drm_dd_major++;
     80 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     81 	assert(ret == -1 && errno == EINVAL);
     82 
     83 	/* Check that an invalid DD minor fails */
     84 	sv = version;
     85 	sv.drm_dd_minor++;
     86 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     87 	assert(ret == -1 && errno == EINVAL);
     88 
     89 	close(fd);
     90 	return 0;
     91 }
     92