From 00240c3839d843ccf07abd52806f421f7b87bbdc Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 27 Apr 2009 13:33:16 -0400 Subject: PCI: add power-state name strings This patch (as1235) adds an array of PCI power-state names, together with a simple inline accessor routine. Signed-off-by: Alan Stern Acked-by: Rafael J. Wysocki Acked-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 5 +++++ include/linux/pci.h | 8 ++++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 1a91bf9687a..07bbb9b3b93 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -24,6 +24,11 @@ #include #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 diff --git a/include/linux/pci.h b/include/linux/pci.h index 72698d89e76..8e366bb0705 100644 --- a/include/linux/pci.h +++ b/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 -- cgit v1.2.3-18-g5258