| Shaohua Li | 6c723d5 | 2008-01-24 10:21:57 +0800 | [diff] [blame] | 1 | /* |
| 2 | * aspm.h |
| 3 | * |
| 4 | * PCI Express ASPM defines and function prototypes |
| 5 | * |
| 6 | * Copyright (C) 2007 Intel Corp. |
| 7 | * Zhang Yanmin (yanmin.zhang@intel.com) |
| 8 | * Shaohua Li (shaohua.li@intel.com) |
| 9 | * |
| 10 | * For more information, please consult the following manuals (look at |
| 11 | * http://www.pcisig.com/ for how to get them): |
| 12 | * |
| 13 | * PCI Express Specification |
| 14 | */ |
| 15 | |
| 16 | #ifndef LINUX_ASPM_H |
| 17 | #define LINUX_ASPM_H |
| 18 | |
| 19 | #include <linux/pci.h> |
| 20 | |
| 21 | #define PCIE_LINK_STATE_L0S 1 |
| 22 | #define PCIE_LINK_STATE_L1 2 |
| 23 | #define PCIE_LINK_STATE_CLKPM 4 |
| 24 | |
| 25 | #ifdef CONFIG_PCIEASPM |
| 26 | extern void pcie_aspm_init_link_state(struct pci_dev *pdev); |
| 27 | extern void pcie_aspm_exit_link_state(struct pci_dev *pdev); |
| 28 | extern void pcie_aspm_pm_state_change(struct pci_dev *pdev); |
| 29 | extern void pci_disable_link_state(struct pci_dev *pdev, int state); |
| 30 | #else |
| 31 | #define pcie_aspm_init_link_state(pdev) do {} while (0) |
| 32 | #define pcie_aspm_exit_link_state(pdev) do {} while (0) |
| 33 | #define pcie_aspm_pm_state_change(pdev) do {} while (0) |
| 34 | #define pci_disable_link_state(pdev, state) do {} while (0) |
| 35 | #endif |
| 36 | |
| 37 | #ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */ |
| 38 | extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev); |
| 39 | extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev); |
| 40 | #else |
| 41 | #define pcie_aspm_create_sysfs_dev_files(pdev) do {} while (0) |
| 42 | #define pcie_aspm_remove_sysfs_dev_files(pdev) do {} while (0) |
| 43 | #endif |
| 44 | #endif /* LINUX_ASPM_H */ |