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/*
* Copyright © 2008 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:
* Eric Anholt <eric@anholt.net>
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <err.h>
#include <assert.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include "intel_gpu_tools.h"
enum pch_type pch;
struct pci_device *
intel_get_pci_device(void)
{
struct pci_device *pci_dev;
int error;
error = pci_system_init();
if (error != 0) {
fprintf(stderr, "Couldn't initialize PCI system: %s\n",
strerror(error));
exit(1);
}
/* Grab the graphics card. Try the canonical slot first, then
* walk the entire PCI bus for a matching device. */
pci_dev = pci_device_find_by_slot(0, 0, 2, 0);
if (pci_dev == NULL || pci_dev->vendor_id != 0x8086) {
struct pci_device_iterator *iter;
struct pci_id_match match;
match.vendor_id = 0x8086; /* Intel */
match.device_id = PCI_MATCH_ANY;
match.subvendor_id = PCI_MATCH_ANY;
match.subdevice_id = PCI_MATCH_ANY;
match.device_class = 0x3 << 16;
match.device_class_mask = 0xff << 16;
match.match_data = 0;
iter = pci_id_match_iterator_create(&match);
pci_dev = pci_device_next(iter);
pci_iterator_destroy(iter);
}
if (pci_dev == NULL)
errx(1, "Couldn't find graphics card");
error = pci_device_probe(pci_dev);
if (error != 0) {
fprintf(stderr, "Couldn't probe graphics card: %s\n",
strerror(error));
exit(1);
}
if (pci_dev->vendor_id != 0x8086)
errx(1, "Graphics card is non-intel");
return pci_dev;
}
void
intel_check_pch(void)
{
struct pci_device *pch_dev;
pch_dev = pci_device_find_by_slot(0, 0, 31, 0);
if (pch_dev == NULL)
return;
if (pch_dev->vendor_id != 0x8086)
return;
switch (pch_dev->device_id & 0xff00) {
case 0x3b00:
pch = PCH_IBX;
break;
case 0x1c00:
case 0x1e00:
pch = PCH_CPT;
break;
case 0x8c00:
case 0x9c00:
pch = PCH_LPT;
break;
default:
pch = PCH_NONE;
return;
}
}
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