portdrv.h

来自「底层驱动开发」· C头文件 代码 · 共 47 行

/*
 * File:	portdrv.h
 * Purpose:	PCI Express Port Bus Driver's Internal Data Structures
 *
 * Copyright (C) 2004 Intel
 * Copyright (C) Tom Long Nguyen ([e-mail])
 */

#ifndef _PORTDRV_H_
#define _PORTDRV_H_

#if !defined(PCI_CAP_ID_PME)
#define PCI_CAP_ID_PME			1
#endif

#if !defined(PCI_CAP_ID_EXP)
#define PCI_CAP_ID_EXP			0x10
#endif

#define PORT_TYPE_MASK			0xf
#define PORT_TO_SLOT_MASK		0x100
#define SLOT_HP_CAPABLE_MASK		0x40
#define PCIE_CAPABILITIES_REG		0x2
#define PCIE_SLOT_CAPABILITIES_REG	0x14
#define PCIE_PORT_DEVICE_MAXSERVICES	4
#define PCI_CFG_SPACE_SIZE		256

#define get_descriptor_id(type, service) (((type - 4) << 4) | service)

struct pcie_port_device_ext {
	int interrupt_mode;	/* [0:INTx | 1:MSI | 2:MSI-X] */
	unsigned int saved_msi_config_space[5];
};

extern struct bus_type pcie_port_bus_type;
extern int pcie_port_device_probe(struct pci_dev *dev);
extern int pcie_port_device_register(struct pci_dev *dev);
#ifdef CONFIG_PM
extern int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state);
extern int pcie_port_device_resume(struct pci_dev *dev);
#endif
extern void pcie_port_device_remove(struct pci_dev *dev);
extern void pcie_port_bus_register(void);
extern void pcie_port_bus_unregister(void);

#endif /* _PORTDRV_H_ */