patch-2.1.101 linux/arch/mips/kernel/pci.c

• Lines: 74
• Date: Fri May 8 00:13:24 1998
• Orig file: v2.1.100/linux/arch/mips/kernel/pci.c
• Orig date: Mon Apr 6 17:40:59 1998

diff -u --recursive --new-file v2.1.100/linux/arch/mips/kernel/pci.c linux/arch/mips/kernel/pci.c
@@ -5,6 +5,7 @@
  *
  * MIPS implementation of PCI BIOS services for PCI support.
  */
+#include <linux/bios32.h>
 #include <linux/config.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -35,6 +36,53 @@
 }
 
 /*
+ * Given the vendor and device ids, find the n'th instance of that device
+ * in the system.  
+ */
+int pcibios_find_device (unsigned short vendor, unsigned short device_id,
+			 unsigned short index, unsigned char *bus,
+			 unsigned char *devfn)
+{
+	unsigned int curr = 0;
+	struct pci_dev *dev;
+
+	for (dev = pci_devices; dev; dev = dev->next) {
+		if (dev->vendor == vendor && dev->device == device_id) {
+			if (curr == index) {
+				*devfn = dev->devfn;
+				*bus = dev->bus->number;
+				return PCIBIOS_SUCCESSFUL;
+			}
+			++curr;
+		}
+	}
+	return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+/*
+ * Given the class, find the n'th instance of that device
+ * in the system.
+ */
+int pcibios_find_class (unsigned int class_code, unsigned short index,
+			unsigned char *bus, unsigned char *devfn)
+{
+	unsigned int curr = 0;
+	struct pci_dev *dev;
+
+	for (dev = pci_devices; dev; dev = dev->next) {
+		if (dev->class == class_code) {
+			if (curr == index) {
+				*devfn = dev->devfn;
+				*bus = dev->bus->number;
+				return PCIBIOS_SUCCESSFUL;
+			}
+			++curr;
+		}
+	}
+	return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+/*
  * The functions below are machine specific and must be reimplented for
  * each PCI chipset configuration.  We just run the hook to the machine
  * specific implementation.
@@ -79,11 +127,6 @@
                                 unsigned char where, unsigned int val)
 {
 	return pci_ops->pcibios_write_config_dword(bus, dev_fn, where, val);
-}
-
-__initfunc(char *pcibios_setup(char *str))
-{
-	return str;
 }
 
 #endif /* defined(CONFIG_PCI) */