include/linux/pcieport_if.h

   1 /*
   2  * File:        pcieport_if.h
   3  * Purpose:     PCI Express Port Bus Driver's IF Data Structure
   4  *
   5  * Copyright (C) 2004 Intel
   6  * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
   7  */
   8
   9 #ifndef _PCIEPORT_IF_H_
  10 #define _PCIEPORT_IF_H_
  11
  12 /* Port Type */
  13 #define PCIE_ANY_PORT                   (~0)
  14
  15 /* Service Type */
  16 #define PCIE_PORT_SERVICE_PME_SHIFT     0       /* Power Management Event */
  17 #define PCIE_PORT_SERVICE_PME           (1 << PCIE_PORT_SERVICE_PME_SHIFT)
  18 #define PCIE_PORT_SERVICE_AER_SHIFT     1       /* Advanced Error Reporting */
  19 #define PCIE_PORT_SERVICE_AER           (1 << PCIE_PORT_SERVICE_AER_SHIFT)
  20 #define PCIE_PORT_SERVICE_HP_SHIFT      2       /* Native Hotplug */
  21 #define PCIE_PORT_SERVICE_HP            (1 << PCIE_PORT_SERVICE_HP_SHIFT)
  22 #define PCIE_PORT_SERVICE_VC_SHIFT      3       /* Virtual Channel */
  23 #define PCIE_PORT_SERVICE_VC            (1 << PCIE_PORT_SERVICE_VC_SHIFT)
  24
  25 struct pcie_device {
  26         int             irq;        /* Service IRQ/MSI/MSI-X Vector */
  27         struct pci_dev *port;       /* Root/Upstream/Downstream Port */
  28         u32             service;    /* Port service this device represents */
  29         void            *priv_data; /* Service Private Data */
  30         struct device   device;     /* Generic Device Interface */
  31 };
  32 #define to_pcie_device(d) container_of(d, struct pcie_device, device)
  33
  34 static inline void set_service_data(struct pcie_device *dev, void *data)
  35 {
  36         dev->priv_data = data;
  37 }
  38
  39 static inline void* get_service_data(struct pcie_device *dev)
  40 {
  41         return dev->priv_data;
  42 }
  43
  44 struct pcie_port_service_driver {
  45         const char *name;
  46         int (*probe) (struct pcie_device *dev);
  47         void (*remove) (struct pcie_device *dev);
  48         int (*suspend) (struct pcie_device *dev);
  49         int (*resume) (struct pcie_device *dev);
  50
  51         /* Service Error Recovery Handler */
  52         const struct pci_error_handlers *err_handler;
  53
  54         /* Link Reset Capability - AER service driver specific */
  55         pci_ers_result_t (*reset_link) (struct pci_dev *dev);
  56
  57         int port_type;  /* Type of the port this driver can handle */
  58         u32 service;    /* Port service this device represents */
  59
  60         struct device_driver driver;
  61 };
  62 #define to_service_driver(d) \
  63         container_of(d, struct pcie_port_service_driver, driver)
  64
  65 extern int pcie_port_service_register(struct pcie_port_service_driver *new);
  66 extern void pcie_port_service_unregister(struct pcie_port_service_driver *new);
  67
  68 #endif /* _PCIEPORT_IF_H_ */