patch-2.3.20 linux/drivers/pci/helper.c

• Lines: 70
• Date: Thu Oct 7 18:07:25 1999
• Orig file: v2.3.19/linux/drivers/pci/helper.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.19/linux/drivers/pci/helper.c linux/drivers/pci/helper.c
@@ -0,0 +1,69 @@
+/*
+ * $Id$
+ *
+ * drivers/pci/helper.c
+ *
+ * Copyright 1999 Jeff Garzik <jgarzik@pobox.com>
+ * This software is free.  See the file COPYING for licensing details.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+
+
+int pci_simple_probe (struct pci_simple_probe_entry *list, size_t match_limit,
+		      pci_simple_probe_callback cb, void *drvr_data)
+{
+	struct pci_dev *dev;
+	struct pci_simple_probe_entry *ent;
+	size_t matches = 0;
+	unsigned short vendor, device;
+	int rc;
+
+	if (!list || !cb)
+		return -1;
+
+	dev = pci_find_device (PCI_ANY_ID, PCI_ANY_ID, NULL);
+	while (dev) {
+		ent = list;
+		while (ent->vendor && ent->device) {
+			vendor = ent->vendor;
+			device = ent->device;
+
+			if (((vendor != 0xFFFF) &&
+			     (vendor != dev->vendor)) ||
+			    ((device != 0xFFFF) &&
+			     (device != dev->device))) {
+			     	ent++;
+				continue;
+			}
+			    
+			if (((ent->subsys_vendor) &&
+			     (ent->subsys_vendor != dev->subsystem_vendor)) ||
+			    ((ent->subsys_device) &&
+			     (ent->subsys_device != dev->subsystem_device))) {
+			     	ent++;
+				continue;
+			}
+			    
+			rc = (* cb) (dev, matches, ent, drvr_data);
+			if (rc < 0)
+				return rc;
+
+			matches++;
+
+			if (match_limit && match_limit == matches)
+				return matches;
+
+			ent++;
+		}
+
+		dev = pci_find_device (PCI_ANY_ID, PCI_ANY_ID, dev);
+	}
+
+	return matches;
+}
+
+