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authorBenjamin Franzke <benjaminfranzke@googlemail.com>2011-05-26 15:10:50 +0200
committerBenjamin Franzke <benjaminfranzke@googlemail.com>2011-06-23 21:07:17 +0200
commit2ff797060d4ffbe1c1bf5b605ea5d4f9e588da41 (patch)
treeede1ca9d95366dd23dd1a41b9fe627c953d044e8 /src/gbm/backends/dri/driver_name.c
parenteddcecbf74da26716509c047b95e85b00c12bab4 (diff)
gbm: Add dri backend
Diffstat (limited to 'src/gbm/backends/dri/driver_name.c')
-rw-r--r--src/gbm/backends/dri/driver_name.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/src/gbm/backends/dri/driver_name.c b/src/gbm/backends/dri/driver_name.c
new file mode 100644
index 00000000000..2ed209fa438
--- /dev/null
+++ b/src/gbm/backends/dri/driver_name.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ * Authors:
+ * Kristian Høgsberg <krh@bitplanet.net>
+ * Benjamin Franzke <benjaminfranzke@googlemail.com>
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <libudev.h>
+
+#include "gbm_driint.h"
+#define DRIVER_MAP_DRI2_ONLY
+#include "pci_ids/pci_id_driver_map.h"
+
+char *
+dri_fd_get_driver_name(int fd)
+{
+ struct udev *udev;
+ struct udev_device *device, *parent;
+ const char *pci_id;
+ char *driver = NULL;
+ int vendor_id, chip_id, i, j;
+
+ udev = udev_new();
+ device = _gbm_udev_device_new_from_fd(udev, fd);
+ if (device == NULL)
+ return NULL;
+
+ parent = udev_device_get_parent(device);
+ if (parent == NULL) {
+ fprintf(stderr, "gbm: could not get parent device");
+ goto out;
+ }
+
+ pci_id = udev_device_get_property_value(parent, "PCI_ID");
+ if (pci_id == NULL ||
+ sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) {
+ fprintf(stderr, "gbm: malformed or no PCI ID");
+ goto out;
+ }
+
+ for (i = 0; driver_map[i].driver; i++) {
+ if (vendor_id != driver_map[i].vendor_id)
+ continue;
+ if (driver_map[i].num_chips_ids == -1) {
+ driver = strdup(driver_map[i].driver);
+ _gbm_log("pci id for %d: %04x:%04x, driver %s",
+ fd, vendor_id, chip_id, driver);
+ goto out;
+ }
+
+ for (j = 0; j < driver_map[i].num_chips_ids; j++)
+ if (driver_map[i].chip_ids[j] == chip_id) {
+ driver = strdup(driver_map[i].driver);
+ _gbm_log("pci id for %d: %04x:%04x, driver %s",
+ fd, vendor_id, chip_id, driver);
+ goto out;
+ }
+ }
+
+out:
+ udev_device_unref(device);
+ udev_unref(udev);
+
+ return driver;
+}