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/*
* aspm.h
*
* PCI Express ASPM defines and function prototypes
*
* Copyright (C) 2007 Intel Corp.
* Zhang Yanmin (yanmin.zhang@intel.com)
* Shaohua Li (shaohua.li@intel.com)
*
* For more information, please consult the following manuals (look at
* http://www.pcisig.com/ for how to get them):
*
* PCI Express Specification
*/
#ifndef LINUX_ASPM_H
#define LINUX_ASPM_H
#include <linux/pci.h>
#define PCIE_LINK_STATE_L0S 1
#define PCIE_LINK_STATE_L1 2
#define PCIE_LINK_STATE_CLKPM 4
#ifdef CONFIG_PCIEASPM
extern void pcie_aspm_init_link_state(struct pci_dev *pdev);
extern void pcie_aspm_exit_link_state(struct pci_dev *pdev);
extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
extern void pci_disable_link_state(struct pci_dev *pdev, int state);
#else
#define pcie_aspm_init_link_state(pdev) do {} while (0)
#define pcie_aspm_exit_link_state(pdev) do {} while (0)
#define pcie_aspm_pm_state_change(pdev) do {} while (0)
#define pci_disable_link_state(pdev, state) do {} while (0)
#endif
#ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */
extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev);
extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev);
#else
#define pcie_aspm_create_sysfs_dev_files(pdev) do {} while (0)
#define pcie_aspm_remove_sysfs_dev_files(pdev) do {} while (0)
#endif
#endif /* LINUX_ASPM_H */
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