blob: eec89b767f9f828d3389ef2584ad5fd103388869 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* File: portdrv_bus.c
* Purpose: PCI Express Port Bus Driver's Bus Overloading Functions
*
* Copyright (C) 2004 Intel
* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pm.h>
#include <linux/pcieport_if.h>
#include "portdrv.h"
static int pcie_port_bus_match(struct device *dev, struct device_driver *drv);
struct bus_type pcie_port_bus_type = {
.name = "pci_express",
.match = pcie_port_bus_match,
};
EXPORT_SYMBOL_GPL(pcie_port_bus_type);
static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
{
struct pcie_device *pciedev;
struct pcie_port_service_driver *driver;
if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type)
return 0;
pciedev = to_pcie_device(dev);
driver = to_service_driver(drv);
if ( (driver->id_table->vendor != PCI_ANY_ID &&
driver->id_table->vendor != pciedev->id.vendor) ||
(driver->id_table->device != PCI_ANY_ID &&
driver->id_table->device != pciedev->id.device) ||
(driver->id_table->port_type != PCIE_ANY_PORT &&
driver->id_table->port_type != pciedev->id.port_type) ||
driver->id_table->service_type != pciedev->id.service_type )
return 0;
return 1;
}
int pcie_port_bus_register(void)
{
return bus_register(&pcie_port_bus_type);
}
void pcie_port_bus_unregister(void)
{
bus_unregister(&pcie_port_bus_type);
}
|
