blob: 14cd7fd405939236232c9e55268cffe2979cef22 [file] [log] [blame]
Jason Barona1c93042012-11-14 15:54:07 -05001/*
2 * Copyright (c) 2006 Fabrice Bellard
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 * THE SOFTWARE.
21 */
22/*
23 * QEMU i82801b11 dmi-to-pci Bridge Emulation
24 *
25 * Copyright (c) 2009, 2010, 2011
26 * Isaku Yamahata <yamahata at valinux co jp>
27 * VA Linux Systems Japan K.K.
28 * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
29 *
30 * This library is free software; you can redistribute it and/or
31 * modify it under the terms of the GNU Lesser General Public
32 * License as published by the Free Software Foundation; either
33 * version 2 of the License, or (at your option) any later version.
34 *
35 * This library is distributed in the hope that it will be useful,
36 * but WITHOUT ANY WARRANTY; without even the implied warranty of
37 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
38 * Lesser General Public License for more details.
39 *
40 * You should have received a copy of the GNU Lesser General Public
41 * License along with this library; if not, see <http://www.gnu.org/licenses/>
42 */
43
Paolo Bonzini83c9f4c2013-02-04 15:40:22 +010044#include "hw/pci/pci.h"
Paolo Bonzini0d09e412013-02-05 17:06:20 +010045#include "hw/i386/ich9.h"
Jason Barona1c93042012-11-14 15:54:07 -050046
47
48/*****************************************************************************/
49/* ICH9 DMI-to-PCI bridge */
50#define I82801ba_SSVID_OFFSET 0x50
51#define I82801ba_SSVID_SVID 0
52#define I82801ba_SSVID_SSID 0
53
54typedef struct I82801b11Bridge {
Andreas Färber5315dc72013-07-12 19:21:22 +020055 /*< private >*/
56 PCIBridge parent_obj;
57 /*< public >*/
Jason Barona1c93042012-11-14 15:54:07 -050058} I82801b11Bridge;
59
60static int i82801b11_bridge_initfn(PCIDevice *d)
61{
62 int rc;
63
Alex Williamson60a0e442013-03-14 16:01:11 -060064 rc = pci_bridge_initfn(d, TYPE_PCI_BUS);
Jason Barona1c93042012-11-14 15:54:07 -050065 if (rc < 0) {
66 return rc;
67 }
68
69 rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET,
70 I82801ba_SSVID_SVID, I82801ba_SSVID_SSID);
71 if (rc < 0) {
72 goto err_bridge;
73 }
Don Koch4268b092013-07-09 13:36:05 -040074 pci_config_set_prog_interface(d->config, PCI_CLASS_BRIDGE_PCI_INF_SUB);
Jason Barona1c93042012-11-14 15:54:07 -050075 return 0;
76
77err_bridge:
78 pci_bridge_exitfn(d);
79
80 return rc;
81}
82
83static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
84{
85 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
Marcel Apfelbaum125ee0e2013-07-29 17:17:45 +030086 DeviceClass *dc = DEVICE_CLASS(klass);
Jason Barona1c93042012-11-14 15:54:07 -050087
88 k->is_bridge = 1;
89 k->vendor_id = PCI_VENDOR_ID_INTEL;
90 k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;
91 k->revision = ICH9_D2P_A2_REVISION;
92 k->init = i82801b11_bridge_initfn;
Gerd Hoffmann4965b7f2013-08-05 16:36:40 +020093 k->config_write = pci_bridge_write_config;
Marcel Apfelbaum125ee0e2013-07-29 17:17:45 +030094 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
Jason Barona1c93042012-11-14 15:54:07 -050095}
96
97static const TypeInfo i82801b11_bridge_info = {
98 .name = "i82801b11-bridge",
Andreas Färberf055e962013-07-11 17:13:43 +020099 .parent = TYPE_PCI_BRIDGE,
Jason Barona1c93042012-11-14 15:54:07 -0500100 .instance_size = sizeof(I82801b11Bridge),
101 .class_init = i82801b11_bridge_class_init,
102};
103
104PCIBus *ich9_d2pbr_init(PCIBus *bus, int devfn, int sec_bus)
105{
106 PCIDevice *d;
107 PCIBridge *br;
108 char buf[16];
109 DeviceState *qdev;
110
111 d = pci_create_multifunction(bus, devfn, true, "i82801b11-bridge");
112 if (!d) {
113 return NULL;
114 }
Andreas Färberf055e962013-07-11 17:13:43 +0200115 br = PCI_BRIDGE(d);
116 qdev = DEVICE(d);
Jason Barona1c93042012-11-14 15:54:07 -0500117
118 snprintf(buf, sizeof(buf), "pci.%d", sec_bus);
119 pci_bridge_map_irq(br, buf, pci_swizzle_map_irq_fn);
120 qdev_init_nofail(qdev);
121
122 return pci_bridge_get_sec_bus(br);
123}
124
125static void d2pbr_register(void)
126{
127 type_register_static(&i82801b11_bridge_info);
128}
129
130type_init(d2pbr_register);