This patch (as1235) adds an array of PCI power-state names, together
with a simple inline accessor routine.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
CC: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
---
Index: usb-2.6/drivers/pci/pci.c
===================================================================
--- usb-2.6.orig/drivers/pci/pci.c
+++ usb-2.6/drivers/pci/pci.c
@@ -24,6 +24,11 @@
#include <asm/setup.h>
#include "pci.h"
+const char *pci_power_names[] = {
+ "error", "D0", "D1", "D2", "D3hot", "D3cold", "unknown",
+};
+EXPORT_SYMBOL_GPL(pci_power_names);
+
unsigned int pci_pm_d3_delay = PCI_PM_D3_WAIT;
#ifdef CONFIG_PCI_DOMAINS
Index: usb-2.6/include/linux/pci.h
===================================================================
--- usb-2.6.orig/include/linux/pci.h
+++ usb-2.6/include/linux/pci.h
@@ -124,6 +124,14 @@ typedef int __bitwise pci_power_t;
#define PCI_UNKNOWN ((pci_power_t __force) 5)
#define PCI_POWER_ERROR ((pci_power_t __force) -1)
+/* Remember to update this when the list above changes! */
+extern const char *pci_power_names[];
+
+static inline const char *pci_power_name(pci_power_t state)
+{
+ return pci_power_names[1 + (int) state];
+}
+
#define PCI_PM_D2_DELAY 200
#define PCI_PM_D3_WAIT 10
#define PCI_PM_BUS_WAIT 50
--
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