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-rw-r--r--libkms/Makefile.am4
-rw-r--r--libkms/api.c29
-rw-r--r--libkms/internal.h2
-rw-r--r--libkms/linux.c88
4 files changed, 118 insertions, 5 deletions
diff --git a/libkms/Makefile.am b/libkms/Makefile.am
index 62d154b8..1ecad774 100644
--- a/libkms/Makefile.am
+++ b/libkms/Makefile.am
@@ -5,9 +5,11 @@ AM_CFLAGS = \
libkms_la_LTLIBRARIES = libkms.la
libkms_ladir = $(libdir)
libkms_la_LDFLAGS = -version-number 1:0:0 -no-undefined
-libkms_la_LIBADD =
+libkms_la_LIBADD = \
+ $(LIBUDEV_LIBS)
libkms_la_SOURCES = \
+ linux.c \
api.c
if HAVE_VMWGFX
diff --git a/libkms/api.c b/libkms/api.c
index 478fa38c..6cec4b96 100644
--- a/libkms/api.c
+++ b/libkms/api.c
@@ -32,13 +32,34 @@
#include <string.h>
#include "internal.h"
-int kms_create(int fd, struct kms_driver **out)
+struct create_record
{
+ unsigned vendor;
+ unsigned chip;
+ int (*func)(int fd, struct kms_driver **out);
+};
+
+static struct create_record table[] = {
#ifdef HAVE_VMWGFX
- return vmwgfx_create(fd, out);
-#else
- return -ENOSYS;
+ { 0x15ad, 0x0405, vmwgfx_create }, /* VMware vGPU */
#endif
+ { 0, 0, NULL },
+};
+
+int kms_create(int fd, struct kms_driver **out)
+{
+ unsigned vendor_id, chip_id;
+ int ret, i;
+
+ ret = linux_get_pciid_from_fd(fd, &vendor_id, &chip_id);
+ if (ret)
+ return ret;
+
+ for (i = 0; table[i].func; i++)
+ if (table[i].vendor == vendor_id && table[i].chip == chip_id)
+ return table[i].func(fd, out);
+
+ return -ENOSYS;
}
int kms_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
diff --git a/libkms/internal.h b/libkms/internal.h
index f1a2b1cf..cdc27053 100644
--- a/libkms/internal.h
+++ b/libkms/internal.h
@@ -62,6 +62,8 @@ struct kms_bo
unsigned handle;
};
+int linux_get_pciid_from_fd(int fd, unsigned *vendor_id, unsigned *chip_id);
+
int vmwgfx_create(int fd, struct kms_driver **out);
#endif
diff --git a/libkms/linux.c b/libkms/linux.c
new file mode 100644
index 00000000..2b08b854
--- /dev/null
+++ b/libkms/linux.c
@@ -0,0 +1,88 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+/*
+ * Thanks to krh and jcristau for the tips on
+ * going from fd to pci id via fstat and udev.
+ */
+
+
+#include <errno.h>
+#include <stdio.h>
+#include <xf86drm.h>
+#include <sys/stat.h>
+
+#include "internal.h"
+
+#define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE
+#include <libudev.h>
+
+int linux_get_pciid_from_fd(int fd, unsigned *vendor_id, unsigned *chip_id)
+{
+ struct udev *udev;
+ struct udev_device *device;
+ struct udev_device *parent;
+ const char *pci_id;
+ struct stat buffer;
+ int ret;
+
+ ret = fstat(fd, &buffer);
+ if (ret)
+ return -EINVAL;
+
+ if (!S_ISCHR(buffer.st_mode))
+ return -EINVAL;
+
+ udev = udev_new();
+ if (!udev)
+ return -ENOMEM;
+
+ device = udev_device_new_from_devnum(udev, 'c', buffer.st_rdev);
+ if (!device)
+ goto err_free_udev;
+
+ parent = udev_device_get_parent(device);
+ if (!parent)
+ goto err_free_device;
+
+ pci_id = udev_device_get_property_value(parent, "PCI_ID");
+ if (!pci_id)
+ goto err_free_device;
+
+ if (sscanf(pci_id, "%x:%x", vendor_id, chip_id) != 2)
+ goto err_free_device;
+
+ udev_device_unref(device);
+ udev_unref(udev);
+
+ return 0;
+
+err_free_device:
+ udev_device_unref(device);
+err_free_udev:
+ udev_unref(udev);
+ return -EINVAL;
+}