Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-12-17' into...
[qemu/ar7.git] / hw / ipmi / isa_ipmi_bt.c
blob9a87ffd3f0be7aed5660e9f26201efd817bd203c
1 /*
2 * QEMU ISA IPMI BT emulation
4 * Copyright (c) 2015 Corey Minyard, MontaVista Software, LLC
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
25 #include "qemu/osdep.h"
26 #include "qemu/log.h"
27 #include "qemu/module.h"
28 #include "qapi/error.h"
29 #include "hw/irq.h"
30 #include "hw/ipmi/ipmi_bt.h"
31 #include "hw/isa/isa.h"
32 #include "hw/qdev-properties.h"
33 #include "migration/vmstate.h"
35 #define TYPE_ISA_IPMI_BT "isa-ipmi-bt"
36 #define ISA_IPMI_BT(obj) OBJECT_CHECK(ISAIPMIBTDevice, (obj), \
37 TYPE_ISA_IPMI_BT)
39 typedef struct ISAIPMIBTDevice {
40 ISADevice dev;
41 int32_t isairq;
42 qemu_irq irq;
43 IPMIBT bt;
44 uint32_t uuid;
45 } ISAIPMIBTDevice;
47 static void isa_ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
49 ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii);
51 ipmi_bt_get_fwinfo(&iib->bt, info);
52 info->interrupt_number = iib->isairq;
53 info->i2c_slave_address = iib->bt.bmc->slave_addr;
54 info->uuid = iib->uuid;
57 static void isa_ipmi_bt_raise_irq(IPMIBT *ib)
59 ISAIPMIBTDevice *iib = ib->opaque;
61 qemu_irq_raise(iib->irq);
64 static void isa_ipmi_bt_lower_irq(IPMIBT *ib)
66 ISAIPMIBTDevice *iib = ib->opaque;
68 qemu_irq_lower(iib->irq);
71 static void isa_ipmi_bt_realize(DeviceState *dev, Error **errp)
73 ISADevice *isadev = ISA_DEVICE(dev);
74 ISAIPMIBTDevice *iib = ISA_IPMI_BT(dev);
75 IPMIInterface *ii = IPMI_INTERFACE(dev);
76 IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
78 if (!iib->bt.bmc) {
79 error_setg(errp, "IPMI device requires a bmc attribute to be set");
80 return;
83 iib->uuid = ipmi_next_uuid();
85 iib->bt.bmc->intf = ii;
86 iib->bt.opaque = iib;
88 iic->init(ii, 0, errp);
89 if (*errp)
90 return;
92 if (iib->isairq > 0) {
93 isa_init_irq(isadev, &iib->irq, iib->isairq);
94 iib->bt.use_irq = 1;
95 iib->bt.raise_irq = isa_ipmi_bt_raise_irq;
96 iib->bt.lower_irq = isa_ipmi_bt_lower_irq;
99 qdev_set_legacy_instance_id(dev, iib->bt.io_base, iib->bt.io_length);
101 isa_register_ioport(isadev, &iib->bt.io, iib->bt.io_base);
104 static const VMStateDescription vmstate_ISAIPMIBTDevice = {
105 .name = TYPE_IPMI_INTERFACE_PREFIX "isa-bt",
106 .version_id = 2,
107 .minimum_version_id = 2,
109 * Version 1 had messed up the array transfer, it's not even usable
110 * because it used VMSTATE_VBUFFER_UINT32, but it did not transfer
111 * the buffer length, so random things would happen.
113 .fields = (VMStateField[]) {
114 VMSTATE_STRUCT(bt, ISAIPMIBTDevice, 1, vmstate_IPMIBT, IPMIBT),
115 VMSTATE_END_OF_LIST()
119 static void isa_ipmi_bt_init(Object *obj)
121 ISAIPMIBTDevice *iib = ISA_IPMI_BT(obj);
123 ipmi_bmc_find_and_link(obj, (Object **) &iib->bt.bmc);
125 vmstate_register(NULL, 0, &vmstate_ISAIPMIBTDevice, iib);
128 static void *isa_ipmi_bt_get_backend_data(IPMIInterface *ii)
130 ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii);
132 return &iib->bt;
135 static Property ipmi_isa_properties[] = {
136 DEFINE_PROP_UINT32("ioport", ISAIPMIBTDevice, bt.io_base, 0xe4),
137 DEFINE_PROP_INT32("irq", ISAIPMIBTDevice, isairq, 5),
138 DEFINE_PROP_END_OF_LIST(),
141 static void isa_ipmi_bt_class_init(ObjectClass *oc, void *data)
143 DeviceClass *dc = DEVICE_CLASS(oc);
144 IPMIInterfaceClass *iic = IPMI_INTERFACE_CLASS(oc);
146 dc->realize = isa_ipmi_bt_realize;
147 dc->props = ipmi_isa_properties;
149 iic->get_backend_data = isa_ipmi_bt_get_backend_data;
150 ipmi_bt_class_init(iic);
151 iic->get_fwinfo = isa_ipmi_bt_get_fwinfo;
154 static const TypeInfo isa_ipmi_bt_info = {
155 .name = TYPE_ISA_IPMI_BT,
156 .parent = TYPE_ISA_DEVICE,
157 .instance_size = sizeof(ISAIPMIBTDevice),
158 .instance_init = isa_ipmi_bt_init,
159 .class_init = isa_ipmi_bt_class_init,
160 .interfaces = (InterfaceInfo[]) {
161 { TYPE_IPMI_INTERFACE },
166 static void ipmi_register_types(void)
168 type_register_static(&isa_ipmi_bt_info);
171 type_init(ipmi_register_types)