2 * Standard Hot Plug Controller Driver
4 * Copyright (C) 1995,2001 Compaq Computer Corporation
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001 IBM Corp.
7 * Copyright (C) 2003-2004 Intel Corporation
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or (at
14 * your option) any later version.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
19 * NON INFRINGEMENT. See the GNU General Public License for more
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com>
30 #include <linux/module.h>
31 #include <linux/kernel.h>
32 #include <linux/types.h>
33 #include <linux/pci.h>
37 int shpchp_configure_device(struct slot
*p_slot
)
40 struct controller
*ctrl
= p_slot
->ctrl
;
41 struct pci_dev
*bridge
= ctrl
->pci_dev
;
42 struct pci_bus
*parent
= bridge
->subordinate
;
45 pci_lock_rescan_remove();
47 dev
= pci_get_slot(parent
, PCI_DEVFN(p_slot
->device
, 0));
49 ctrl_err(ctrl
, "Device %s already exists at %04x:%02x:%02x, cannot hot-add\n",
50 pci_name(dev
), pci_domain_nr(parent
),
51 p_slot
->bus
, p_slot
->device
);
57 num
= pci_scan_slot(parent
, PCI_DEVFN(p_slot
->device
, 0));
59 ctrl_err(ctrl
, "No new device found\n");
64 list_for_each_entry(dev
, &parent
->devices
, bus_list
) {
65 if (PCI_SLOT(dev
->devfn
) != p_slot
->device
)
67 if (pci_is_bridge(dev
))
68 pci_hp_add_bridge(dev
);
71 pci_assign_unassigned_bridge_resources(bridge
);
72 pcie_bus_configure_settings(parent
);
73 pci_bus_add_devices(parent
);
76 pci_unlock_rescan_remove();
80 int shpchp_unconfigure_device(struct slot
*p_slot
)
84 struct pci_bus
*parent
= p_slot
->ctrl
->pci_dev
->subordinate
;
85 struct pci_dev
*dev
, *temp
;
86 struct controller
*ctrl
= p_slot
->ctrl
;
88 ctrl_dbg(ctrl
, "%s: domain:bus:dev = %04x:%02x:%02x\n",
89 __func__
, pci_domain_nr(parent
), p_slot
->bus
, p_slot
->device
);
91 pci_lock_rescan_remove();
93 list_for_each_entry_safe(dev
, temp
, &parent
->devices
, bus_list
) {
94 if (PCI_SLOT(dev
->devfn
) != p_slot
->device
)
98 if (dev
->hdr_type
== PCI_HEADER_TYPE_BRIDGE
) {
99 pci_read_config_byte(dev
, PCI_BRIDGE_CONTROL
, &bctl
);
100 if (bctl
& PCI_BRIDGE_CTL_VGA
) {
102 "Cannot remove display device %s\n",
109 pci_stop_and_remove_bus_device(dev
);
113 pci_unlock_rescan_remove();
This page took 0.034857 seconds and 5 git commands to generate.