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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 "drmtest.h"
     31 
     32 /**
     33  * Checks DRM_IOCTL_SET_VERSION.
     34  *
     35  * This tests that we can get the actual version out, and that setting invalid
     36  * major/minor numbers fails appropriately.  It does not check the actual
     37  * behavior differenses resulting from an increased DI version.
     38  */
     39 int main(int argc, char **argv)
     40 {
     41 	int fd, ret;
     42 	drm_set_version_t sv, version;
     43 
     44 	if (getuid() != 0) {
     45 		fprintf(stderr, "setversion test requires root, skipping\n");
     46 		return 0;
     47 	}
     48 
     49 	fd = drm_open_any_master();
     50 
     51 	/* First, check that we can get the DD/DI versions. */
     52 	memset(&version, 0, sizeof(version));
     53 	version.drm_di_major = -1;
     54 	version.drm_di_minor = -1;
     55 	version.drm_dd_major = -1;
     56 	version.drm_dd_minor = -1;
     57 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &version);
     58 	assert(ret == 0);
     59 	assert(version.drm_di_major != -1);
     60 	assert(version.drm_di_minor != -1);
     61 	assert(version.drm_dd_major != -1);
     62 	assert(version.drm_dd_minor != -1);
     63 
     64 	/* Check that an invalid DI major fails */
     65 	sv = version;
     66 	sv.drm_di_major++;
     67 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     68 	assert(ret == -1 && errno == EINVAL);
     69 
     70 	/* Check that an invalid DI minor fails */
     71 	sv = version;
     72 	sv.drm_di_major++;
     73 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     74 	assert(ret == -1 && errno == EINVAL);
     75 
     76 	/* Check that an invalid DD major fails */
     77 	sv = version;
     78 	sv.drm_dd_major++;
     79 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     80 	assert(ret == -1 && errno == EINVAL);
     81 
     82 	/* Check that an invalid DD minor fails */
     83 	sv = version;
     84 	sv.drm_dd_minor++;
     85 	ret = ioctl(fd, DRM_IOCTL_SET_VERSION, &sv);
     86 	assert(ret == -1 && errno == EINVAL);
     87 
     88 	close(fd);
     89 	return 0;
     90 }
     91