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PCI: add power-state name strings

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This patch (as1235) adds an array of PCI power-state names, together
with a simple inline accessor routine.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern
2009-04-27 13:33:16 -04:00
committed by Greg Kroah-Hartman
parent 604eb89ffe
commit 00240c3839
2 changed files with 13 additions and 0 deletions
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8
include/linux/pci.h
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@ -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