1 /* 2 * Copyright (c) 2015 Emil Velikov <emil.l.velikov (at) 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 } 160
