tests/drmdevice.c

   1 /*
   2  * Copyright (c) 2015 Emil Velikov <emil.l.velikov@gmail.com>
   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 shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20  * IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include <errno.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <stdbool.h>
  28 #include <string.h>
  29 #include <sys/stat.h>
  30 #include <fcntl.h>
  31 #include <unistd.h>
  32 #include <xf86drm.h>
  33
  34
  35 static void
  36 print_device_info(drmDevicePtr device, int i, bool print_revision)
  37 {
  38     printf("device[%i]\n", i);
  39     printf("\tavailable_nodes %04x\n", device->available_nodes);
  40     printf("\tnodes\n");
  41     for (int j = 0; j < DRM_NODE_MAX; j++)
  42         if (device->available_nodes & 1 << j)
  43             printf("\t\tnodes[%d] %s\n", j, device->nodes[j]);
  44
  45     printf("\tbustype %04x\n", device->bustype);
  46     printf("\tbusinfo\n");
  47     if (device->bustype == DRM_BUS_PCI) {
  48         printf("\t\tpci\n");
  49         printf("\t\t\tdomain\t%04x\n",device->businfo.pci->domain);
  50         printf("\t\t\tbus\t%02x\n", device->businfo.pci->bus);
  51         printf("\t\t\tdev\t%02x\n", device->businfo.pci->dev);
  52         printf("\t\t\tfunc\t%1u\n", device->businfo.pci->func);
  53
  54         printf("\tdeviceinfo\n");
  55         printf("\t\tpci\n");
  56         printf("\t\t\tvendor_id\t%04x\n", device->deviceinfo.pci->vendor_id);
  57         printf("\t\t\tdevice_id\t%04x\n", device->deviceinfo.pci->device_id);
  58         printf("\t\t\tsubvendor_id\t%04x\n", device->deviceinfo.pci->subvendor_id);
  59         printf("\t\t\tsubdevice_id\t%04x\n", device->deviceinfo.pci->subdevice_id);
  60         if (print_revision)
  61             printf("\t\t\trevision_id\t%02x\n", device->deviceinfo.pci->revision_id);
  62         else
  63             printf("\t\t\trevision_id\tIGNORED\n");
  64
  65     } else if (device->bustype == DRM_BUS_USB) {
  66         printf("\t\tusb\n");
  67         printf("\t\t\tbus\t%03u\n", device->businfo.usb->bus);
  68         printf("\t\t\tdev\t%03u\n", device->businfo.usb->dev);
  69
  70         printf("\tdeviceinfo\n");
  71         printf("\t\tusb\n");
  72         printf("\t\t\tvendor\t%04x\n", device->deviceinfo.usb->vendor);
  73         printf("\t\t\tproduct\t%04x\n", device->deviceinfo.usb->product);
  74     } else if (device->bustype == DRM_BUS_PLATFORM) {
  75         char **compatible = device->deviceinfo.platform->compatible;
  76
  77         printf("\t\tplatform\n");
  78         printf("\t\t\tfullname\t%s\n", device->businfo.platform->fullname);
  79
  80         printf("\tdeviceinfo\n");
  81         printf("\t\tplatform\n");
  82         printf("\t\t\tcompatible\n");
  83
  84         while (*compatible) {
  85             printf("\t\t\t\t%s\n", *compatible);
  86             compatible++;
  87         }
  88     } else if (device->bustype == DRM_BUS_HOST1X) {
  89         char **compatible = device->deviceinfo.platform->compatible;
  90
  91         printf("\t\thost1x\n");
  92         printf("\t\t\tfullname\t%s\n", device->businfo.host1x->fullname);
  93
  94         printf("\tdeviceinfo\n");
  95         printf("\t\tplatform\n");
  96         printf("\t\t\tcompatible\n");
  97
  98         while (*compatible) {
  99             printf("\t\t\t\t%s\n", *compatible);
 100             compatible++;
 101         }
 102     } else {
 103         printf("Unknown/unhandled bustype\n");
 104     }
 105     printf("\n");
 106 }
 107
 108 int
 109 main(void)
 110 {
 111     drmDevicePtr *devices;
 112     drmDevicePtr device;
 113     int fd, ret, max_devices;
 114
 115     max_devices = drmGetDevices2(0, NULL, 0);
 116
 117     if (max_devices <= 0) {
 118         printf("drmGetDevices2() has returned %d\n", max_devices);
 119         return -1;
 120     }
 121
 122     devices = calloc(max_devices, sizeof(drmDevicePtr));
 123     if (devices == NULL) {
 124         printf("Failed to allocate memory for the drmDevicePtr array\n");
 125         return -1;
 126     }
 127
 128     ret = drmGetDevices2(0, devices, max_devices);
 129     if (ret < 0) {
 130         printf("drmGetDevices2() returned an error %d\n", ret);
 131         free(devices);
 132         return -1;
 133     }
 134
 135     for (int i = 0; i < ret; i++) {
 136         print_device_info(devices[i], i, false);
 137
 138         for (int j = 0; j < DRM_NODE_MAX; j++) {
 139             if (devices[i]->available_nodes & 1 << j) {
 140                 printf("Opening device %d node %s\n", i, devices[i]->nodes[j]);
 141                 fd = open(devices[i]->nodes[j], O_RDONLY | O_CLOEXEC, 0);
 142                 if (fd < 0) {
 143                     printf("Failed - %s (%d)\n", strerror(errno), errno);
 144                     continue;
 145                 }
 146
 147                 if (drmGetDevice2(fd, DRM_DEVICE_GET_PCI_REVISION, &device) == 0) {
 148                     print_device_info(device, i, true);
 149                     drmFreeDevice(&device);
 150                 }
 151                 close(fd);
 152             }
 153         }
 154     }
 155
 156     drmFreeDevices(devices, ret);
 157     free(devices);
 158     return 0;
 159 }