xref: /openbmc/qemu/hw/net/ne2000-isa.c (revision ba632924)
1 /*
2  * QEMU NE2000 emulation -- isa bus windup
3  *
4  * Copyright (c) 2003-2004 Fabrice Bellard
5  *
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:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
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.
23  */
24 #include "qemu/osdep.h"
25 #include "hw/isa/isa.h"
26 #include "hw/net/ne2000-isa.h"
27 #include "hw/qdev.h"
28 #include "ne2000.h"
29 #include "sysemu/sysemu.h"
30 #include "qapi/error.h"
31 #include "qapi/visitor.h"
32 
33 #define ISA_NE2000(obj) OBJECT_CHECK(ISANE2000State, (obj), TYPE_ISA_NE2000)
34 
35 typedef struct ISANE2000State {
36     ISADevice parent_obj;
37 
38     uint32_t iobase;
39     uint32_t isairq;
40     NE2000State ne2000;
41 } ISANE2000State;
42 
43 static NetClientInfo net_ne2000_isa_info = {
44     .type = NET_CLIENT_DRIVER_NIC,
45     .size = sizeof(NICState),
46     .receive = ne2000_receive,
47 };
48 
49 static const VMStateDescription vmstate_isa_ne2000 = {
50     .name = "ne2000",
51     .version_id = 2,
52     .minimum_version_id = 0,
53     .fields = (VMStateField[]) {
54         VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
55         VMSTATE_END_OF_LIST()
56     }
57 };
58 
59 static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
60 {
61     ISADevice *isadev = ISA_DEVICE(dev);
62     ISANE2000State *isa = ISA_NE2000(dev);
63     NE2000State *s = &isa->ne2000;
64 
65     ne2000_setup_io(s, DEVICE(isadev), 0x20);
66     isa_register_ioport(isadev, &s->io, isa->iobase);
67 
68     isa_init_irq(isadev, &s->irq, isa->isairq);
69 
70     qemu_macaddr_default_if_unset(&s->c.macaddr);
71     ne2000_reset(s);
72 
73     s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
74                           object_get_typename(OBJECT(dev)), dev->id, s);
75     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
76 }
77 
78 static Property ne2000_isa_properties[] = {
79     DEFINE_PROP_UINT32("iobase", ISANE2000State, iobase, 0x300),
80     DEFINE_PROP_UINT32("irq",   ISANE2000State, isairq, 9),
81     DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
82     DEFINE_PROP_END_OF_LIST(),
83 };
84 
85 static void isa_ne2000_class_initfn(ObjectClass *klass, void *data)
86 {
87     DeviceClass *dc = DEVICE_CLASS(klass);
88 
89     dc->realize = isa_ne2000_realizefn;
90     dc->props = ne2000_isa_properties;
91     dc->vmsd = &vmstate_isa_ne2000;
92     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
93 }
94 
95 static void isa_ne2000_get_bootindex(Object *obj, Visitor *v,
96                                      const char *name, void *opaque,
97                                      Error **errp)
98 {
99     ISANE2000State *isa = ISA_NE2000(obj);
100     NE2000State *s = &isa->ne2000;
101 
102     visit_type_int32(v, name, &s->c.bootindex, errp);
103 }
104 
105 static void isa_ne2000_set_bootindex(Object *obj, Visitor *v,
106                                      const char *name, void *opaque,
107                                      Error **errp)
108 {
109     ISANE2000State *isa = ISA_NE2000(obj);
110     NE2000State *s = &isa->ne2000;
111     int32_t boot_index;
112     Error *local_err = NULL;
113 
114     visit_type_int32(v, name, &boot_index, &local_err);
115     if (local_err) {
116         goto out;
117     }
118     /* check whether bootindex is present in fw_boot_order list  */
119     check_boot_index(boot_index, &local_err);
120     if (local_err) {
121         goto out;
122     }
123     /* change bootindex to a new one */
124     s->c.bootindex = boot_index;
125 
126 out:
127     error_propagate(errp, local_err);
128 }
129 
130 static void isa_ne2000_instance_init(Object *obj)
131 {
132     object_property_add(obj, "bootindex", "int32",
133                         isa_ne2000_get_bootindex,
134                         isa_ne2000_set_bootindex, NULL, NULL, NULL);
135     object_property_set_int(obj, -1, "bootindex", NULL);
136 }
137 static const TypeInfo ne2000_isa_info = {
138     .name          = TYPE_ISA_NE2000,
139     .parent        = TYPE_ISA_DEVICE,
140     .instance_size = sizeof(ISANE2000State),
141     .class_init    = isa_ne2000_class_initfn,
142     .instance_init = isa_ne2000_instance_init,
143 };
144 
145 static void ne2000_isa_register_types(void)
146 {
147     type_register_static(&ne2000_isa_info);
148 }
149 
150 type_init(ne2000_isa_register_types)
151