From 3c7b03f2f7b4ecfb18fb30f2e43b6321cb1aa4de Mon Sep 17 00:00:00 2001
From: "Graydon, Tracy" <tracy.graydon@intel.com>
Date: Thu, 31 Jan 2013 15:14:28 -0800
Subject: Initial commit

---
 lib/intel_pci.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 lib/intel_pci.c

(limited to 'lib/intel_pci.c')

diff --git a/lib/intel_pci.c b/lib/intel_pci.c
new file mode 100644
index 00000000..7228daec
--- /dev/null
+++ b/lib/intel_pci.c
@@ -0,0 +1,89 @@
+/*
+ * 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 */
+	pci_dev = pci_device_find_by_slot(0, 0, 2, 0);
+	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 &&
+	    (((pch_dev->device_id & 0xff00) == 0x1c00) ||
+	     (pch_dev->device_id & 0xff00) == 0x1e00))
+		pch = PCH_CPT;
+}
+
-- 
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