portdrv.h revision 415e12b2379239973feab91850b0dce985c6058a 
1/*
2 * File:	portdrv.h
3 * Purpose:	PCI Express Port Bus Driver's Internal Data Structures
4 *
5 * Copyright (C) 2004 Intel
6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
7 */
8
9#ifndef _PORTDRV_H_
10#define _PORTDRV_H_
11
12#include <linux/compiler.h>
13
14#define PCIE_PORT_DEVICE_MAXSERVICES   4
15/*
16 * According to the PCI Express Base Specification 2.0, the indices of
17 * the MSI-X table entires used by port services must not exceed 31
18 */
19#define PCIE_PORT_MAX_MSIX_ENTRIES	32
20
21#define get_descriptor_id(type, service) (((type - 4) << 4) | service)
22
23extern struct bus_type pcie_port_bus_type;
24extern int pcie_port_device_register(struct pci_dev *dev);
25#ifdef CONFIG_PM
26extern int pcie_port_device_suspend(struct device *dev);
27extern int pcie_port_device_resume(struct device *dev);
28#endif
29extern void pcie_port_device_remove(struct pci_dev *dev);
30extern int __must_check pcie_port_bus_register(void);
31extern void pcie_port_bus_unregister(void);
32
33struct pci_dev;
34
35extern void pcie_clear_root_pme_status(struct pci_dev *dev);
36
37#ifdef CONFIG_PCIE_PME
38extern bool pcie_pme_msi_disabled;
39
40static inline void pcie_pme_disable_msi(void)
41{
42	pcie_pme_msi_disabled = true;
43}
44
45static inline bool pcie_pme_no_msi(void)
46{
47	return pcie_pme_msi_disabled;
48}
49
50extern void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
51#else /* !CONFIG_PCIE_PME */
52static inline void pcie_pme_disable_msi(void) {}
53static inline bool pcie_pme_no_msi(void) { return false; }
54static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {}
55#endif /* !CONFIG_PCIE_PME */
56
57#ifdef CONFIG_ACPI
58extern int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
59
60static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
61{
62	return pcie_port_acpi_setup(port, mask);
63}
64#else /* !CONFIG_ACPI */
65static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
66{
67	return 0;
68}
69#endif /* !CONFIG_ACPI */
70
71#endif /* _PORTDRV_H_ */
72