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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
/*
* This code is derived from src/egl/drivers/dri2/common.c which
* carries the following copyright:
*
* 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 <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <GL/gl.h>
#include "glapi.h"
#include "glxclient.h"
#include "xf86dri.h"
#include <dlfcn.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/time.h>
#include "xf86drm.h"
#include "dri_common.h"
#include "dri3_priv.h"
#define DRIVER_MAP_DRI3_ONLY
#include "pci_ids/pci_id_driver_map.h"
#include <libudev.h>
static struct udev_device *
dri3_udev_device_new_from_fd(struct udev *udev, int fd)
{
struct udev_device *device;
struct stat buf;
if (fstat(fd, &buf) < 0) {
ErrorMessageF("DRI3: failed to stat fd %d", fd);
return NULL;
}
device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
if (device == NULL) {
ErrorMessageF("DRI3: could not create udev device for fd %d", fd);
return NULL;
}
return device;
}
char *
dri3_get_driver_for_fd(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 = dri3_udev_device_new_from_fd(udev, fd);
if (device == NULL)
return NULL;
parent = udev_device_get_parent(device);
if (parent == NULL) {
ErrorMessageF("DRI3: 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) {
ErrorMessageF("DRI3: 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);
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);
goto out;
}
}
out:
udev_device_unref(device);
udev_unref(udev);
return driver;
}
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