examples/dlm-client-test/dlm-client-test.c

   1 /* Copyright 2020-2021 IGEL Co., Ltd.
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #include "dlmclient.h"
  17
  18 #include <errno.h>
  19 #include <stdint.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #include <xf86drmMode.h>
  25
  26 static void usage(const char *name)
  27 {
  28         fprintf(stderr,
  29                 "%s <lease name>\n"
  30                 "\tlease name: Name of lease to check\n",
  31                 name);
  32 }
  33
  34 static void dump_lease_resources(int lease_fd)
  35 {
  36         drmModeObjectListPtr ol = drmModeGetLease(lease_fd);
  37         if (!ol) {
  38                 fprintf(
  39                     stderr,
  40                     "drmModeGetLease failed. Received fd is not a DRM lease\n");
  41                 return;
  42         }
  43         free(ol);
  44
  45         drmModeRes *res = drmModeGetResources(lease_fd);
  46         if (!res) {
  47                 fprintf(stderr, "drmModeGetResources failed\n");
  48                 return;
  49         }
  50
  51         for (int i = 0; i < res->count_crtcs; i++)
  52                 printf("crtc-id: %u\n", res->crtcs[i]);
  53
  54         for (int i = 0; i < res->count_connectors; i++)
  55                 printf("connector-id: %u\n", res->connectors[i]);
  56
  57         drmModeFreeResources(res);
  58
  59         drmModePlaneRes *plane_res = drmModeGetPlaneResources(lease_fd);
  60         if (!plane_res) {
  61                 fprintf(stderr, "drmModeGetPlaneResources failed\n");
  62                 return;
  63         }
  64
  65         for (uint32_t i = 0; i < plane_res->count_planes; i++)
  66                 printf("plane-id: %u\n", plane_res->planes[i]);
  67
  68         drmModeFreePlaneResources(plane_res);
  69 }
  70
  71 int main(int argc, char **argv)
  72 {
  73         if (argc < 2) {
  74                 usage(argv[0]);
  75                 return EXIT_FAILURE;
  76         }
  77
  78         struct dlm_lease *lease = dlm_get_lease(argv[1]);
  79         if (!lease) {
  80                 fprintf(stderr, "dlm_get_lease: %s\n", strerror(errno));
  81                 return EXIT_FAILURE;
  82         }
  83
  84         int lease_fd = dlm_lease_fd(lease);
  85         if (lease_fd < 0) {
  86                 fprintf(stderr, "dlm_lease_fd: %s\n", strerror(errno));
  87                 dlm_release_lease(lease);
  88                 return EXIT_FAILURE;
  89         }
  90
  91         dump_lease_resources(lease_fd);
  92         dlm_release_lease(lease);
  93         return EXIT_SUCCESS;
  94 }