hw/net/ne2000-isa.c

   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 "hw/hw.h"
  25 #include "hw/i386/pc.h"
  26 #include "hw/isa/isa.h"
  27 #include "hw/qdev.h"
  28 #include "net/net.h"
  29 #include "ne2000.h"
  30 #include "exec/address-spaces.h"
  31 #include "qapi/visitor.h"
  32
  33 #define TYPE_ISA_NE2000 "ne2k_isa"
  34 #define ISA_NE2000(obj) OBJECT_CHECK(ISANE2000State, (obj), TYPE_ISA_NE2000)
  35
  36 typedef struct ISANE2000State {
  37     ISADevice parent_obj;
  38
  39     uint32_t iobase;
  40     uint32_t isairq;
  41     NE2000State ne2000;
  42 } ISANE2000State;
  43
  44 static void isa_ne2000_cleanup(NetClientState *nc)
  45 {
  46     NE2000State *s = qemu_get_nic_opaque(nc);
  47
  48     s->nic = NULL;
  49 }
  50
  51 static NetClientInfo net_ne2000_isa_info = {
  52     .type = NET_CLIENT_OPTIONS_KIND_NIC,
  53     .size = sizeof(NICState),
  54     .can_receive = ne2000_can_receive,
  55     .receive = ne2000_receive,
  56     .cleanup = isa_ne2000_cleanup,
  57 };
  58
  59 static const VMStateDescription vmstate_isa_ne2000 = {
  60     .name = "ne2000",
  61     .version_id = 2,
  62     .minimum_version_id = 0,
  63     .fields = (VMStateField[]) {
  64         VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
  65         VMSTATE_END_OF_LIST()
  66     }
  67 };
  68
  69 static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
  70 {
  71     ISADevice *isadev = ISA_DEVICE(dev);
  72     ISANE2000State *isa = ISA_NE2000(dev);
  73     NE2000State *s = &isa->ne2000;
  74
  75     ne2000_setup_io(s, DEVICE(isadev), 0x20);
  76     isa_register_ioport(isadev, &s->io, isa->iobase);
  77
  78     isa_init_irq(isadev, &s->irq, isa->isairq);
  79
  80     qemu_macaddr_default_if_unset(&s->c.macaddr);
  81     ne2000_reset(s);
  82
  83     s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
  84                           object_get_typename(OBJECT(dev)), dev->id, s);
  85     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
  86 }
  87
  88 static Property ne2000_isa_properties[] = {
  89     DEFINE_PROP_UINT32("iobase", ISANE2000State, iobase, 0x300),
  90     DEFINE_PROP_UINT32("irq",   ISANE2000State, isairq, 9),
  91     DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
  92     DEFINE_PROP_END_OF_LIST(),
  93 };
  94
  95 static void isa_ne2000_class_initfn(ObjectClass *klass, void *data)
  96 {
  97     DeviceClass *dc = DEVICE_CLASS(klass);
  98
  99     dc->realize = isa_ne2000_realizefn;
 100     dc->props = ne2000_isa_properties;
 101     dc->vmsd = &vmstate_isa_ne2000;
 102     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 103 }
 104
 105 static void isa_ne2000_get_bootindex(Object *obj, Visitor *v, void *opaque,
 106                                      const char *name, Error **errp)
 107 {
 108     ISANE2000State *isa = ISA_NE2000(obj);
 109     NE2000State *s = &isa->ne2000;
 110
 111     visit_type_int32(v, &s->c.bootindex, name, errp);
 112 }
 113
 114 static void isa_ne2000_set_bootindex(Object *obj, Visitor *v, void *opaque,
 115                                      const char *name, Error **errp)
 116 {
 117     ISANE2000State *isa = ISA_NE2000(obj);
 118     NE2000State *s = &isa->ne2000;
 119     int32_t boot_index;
 120     Error *local_err = NULL;
 121
 122     visit_type_int32(v, &boot_index, name, &local_err);
 123     if (local_err) {
 124         goto out;
 125     }
 126     /* check whether bootindex is present in fw_boot_order list  */
 127     check_boot_index(boot_index, &local_err);
 128     if (local_err) {
 129         goto out;
 130     }
 131     /* change bootindex to a new one */
 132     s->c.bootindex = boot_index;
 133
 134 out:
 135     if (local_err) {
 136         error_propagate(errp, local_err);
 137     }
 138 }
 139
 140 static void isa_ne2000_instance_init(Object *obj)
 141 {
 142     object_property_add(obj, "bootindex", "int32",
 143                         isa_ne2000_get_bootindex,
 144                         isa_ne2000_set_bootindex, NULL, NULL, NULL);
 145     object_property_set_int(obj, -1, "bootindex", NULL);
 146 }
 147 static const TypeInfo ne2000_isa_info = {
 148     .name          = TYPE_ISA_NE2000,
 149     .parent        = TYPE_ISA_DEVICE,
 150     .instance_size = sizeof(ISANE2000State),
 151     .class_init    = isa_ne2000_class_initfn,
 152     .instance_init = isa_ne2000_instance_init,
 153 };
 154
 155 static void ne2000_isa_register_types(void)
 156 {
 157     type_register_static(&ne2000_isa_info);
 158 }
 159
 160 type_init(ne2000_isa_register_types)