diff options
Diffstat (limited to '')
| -rw-r--r-- | tests/drmdevice.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/tests/drmdevice.c b/tests/drmdevice.c new file mode 100644 index 0000000..b4b62d9 --- /dev/null +++ b/tests/drmdevice.c @@ -0,0 +1,164 @@ +/* + * Copyright (c) 2015 Emil Velikov <emil.l.velikov@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <xf86drm.h> + + +static void +print_device_info(drmDevicePtr device, int i, bool print_revision) +{ + printf("device[%i]\n", i); + printf("+-> available_nodes %#04x\n", device->available_nodes); + printf("+-> nodes\n"); + for (int j = 0; j < DRM_NODE_MAX; j++) + if (device->available_nodes & 1 << j) + printf("| +-> nodes[%d] %s\n", j, device->nodes[j]); + + printf("+-> bustype %04x\n", device->bustype); + if (device->bustype == DRM_BUS_PCI) { + printf("| +-> pci\n"); + printf("| +-> domain %04x\n",device->businfo.pci->domain); + printf("| +-> bus %02x\n", device->businfo.pci->bus); + printf("| +-> dev %02x\n", device->businfo.pci->dev); + printf("| +-> func %1u\n", device->businfo.pci->func); + + printf("+-> deviceinfo\n"); + printf(" +-> pci\n"); + printf(" +-> vendor_id %04x\n", device->deviceinfo.pci->vendor_id); + printf(" +-> device_id %04x\n", device->deviceinfo.pci->device_id); + printf(" +-> subvendor_id %04x\n", device->deviceinfo.pci->subvendor_id); + printf(" +-> subdevice_id %04x\n", device->deviceinfo.pci->subdevice_id); + if (print_revision) + printf(" +-> revision_id %02x\n", device->deviceinfo.pci->revision_id); + else + printf(" +-> revision_id IGNORED\n"); + + } else if (device->bustype == DRM_BUS_USB) { + printf("| +-> usb\n"); + printf("| +-> bus %03u\n", device->businfo.usb->bus); + printf("| +-> dev %03u\n", device->businfo.usb->dev); + + printf("+-> deviceinfo\n"); + printf(" +-> usb\n"); + printf(" +-> vendor %04x\n", device->deviceinfo.usb->vendor); + printf(" +-> product %04x\n", device->deviceinfo.usb->product); + } else if (device->bustype == DRM_BUS_PLATFORM) { + char **compatible = device->deviceinfo.platform->compatible; + + printf("| +-> platform\n"); + printf("| +-> fullname\t%s\n", device->businfo.platform->fullname); + + printf("+-> deviceinfo\n"); + printf(" +-> platform\n"); + printf(" +-> compatible\n"); + + while (*compatible) { + printf(" %s\n", *compatible); + compatible++; + } + } else if (device->bustype == DRM_BUS_HOST1X) { + char **compatible = device->deviceinfo.host1x->compatible; + + printf("| +-> host1x\n"); + printf("| +-> fullname\t%s\n", device->businfo.host1x->fullname); + + printf("+-> deviceinfo\n"); + printf(" +-> host1x\n"); + printf(" +-> compatible\n"); + + while (*compatible) { + printf(" %s\n", *compatible); + compatible++; + } + } else { + printf("Unknown/unhandled bustype\n"); + } + printf("\n"); +} + +int +main(void) +{ + drmDevicePtr *devices; + drmDevicePtr device; + int fd, ret, max_devices; + + printf("--- Checking the number of DRM device available ---\n"); + max_devices = drmGetDevices2(0, NULL, 0); + + if (max_devices <= 0) { + printf("drmGetDevices2() has not found any devices (errno=%d)\n", + -max_devices); + return 77; + } + printf("--- Devices reported %d ---\n", max_devices); + + + devices = calloc(max_devices, sizeof(drmDevicePtr)); + if (devices == NULL) { + printf("Failed to allocate memory for the drmDevicePtr array\n"); + return -1; + } + + printf("--- Retrieving devices information (PCI device revision is ignored) ---\n"); + ret = drmGetDevices2(0, devices, max_devices); + if (ret < 0) { + printf("drmGetDevices2() returned an error %d\n", ret); + free(devices); + return -1; + } + + for (int i = 0; i < ret; i++) { + print_device_info(devices[i], i, false); + + for (int j = 0; j < DRM_NODE_MAX; j++) { + if (devices[i]->available_nodes & 1 << j) { + printf("--- Opening device node %s ---\n", devices[i]->nodes[j]); + fd = open(devices[i]->nodes[j], O_RDONLY | O_CLOEXEC); + if (fd < 0) { + printf("Failed - %s (%d)\n", strerror(errno), errno); + continue; + } + + printf("--- Retrieving device info, for node %s ---\n", devices[i]->nodes[j]); + if (drmGetDevice2(fd, DRM_DEVICE_GET_PCI_REVISION, &device) == 0) { + print_device_info(device, i, true); + drmFreeDevice(&device); + } + close(fd); + } + } + } + + drmFreeDevices(devices, ret); + free(devices); + return 0; +} |