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-rw-r--r--tests/drmdevice.c164
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;
+}