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
25 #include "qemu/osdep.h"
27 #include "qemu/module.h"
28 #include "qapi/error.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), \
39 typedef struct 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
);
79 error_setg(errp
, "IPMI device requires a bmc attribute to be set");
83 iib
->uuid
= ipmi_next_uuid();
85 iib
->bt
.bmc
->intf
= ii
;
88 iic
->init(ii
, 0, errp
);
92 if (iib
->isairq
> 0) {
93 isa_init_irq(isadev
, &iib
->irq
, iib
->isairq
);
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",
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
);
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
)