hw/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.h"
  25 #include "pc.h"
  26 #include "isa.h"
  27 #include "qdev.h"
  28 #include "net.h"
  29 #include "ne2000.h"
  30
  31 typedef struct ISANE2000State {
  32     ISADevice dev;
  33     uint32_t iobase;
  34     uint32_t isairq;
  35     NE2000State ne2000;
  36 } ISANE2000State;
  37
  38 static void isa_ne2000_cleanup(VLANClientState *vc)
  39 {
  40     NE2000State *s = vc->opaque;
  41     ISANE2000State *isa = container_of(s, ISANE2000State, ne2000);
  42
  43     unregister_savevm("ne2000", s);
  44
  45     isa_unassign_ioport(isa->iobase, 16);
  46     isa_unassign_ioport(isa->iobase + 0x10, 2);
  47     isa_unassign_ioport(isa->iobase + 0x1f, 1);
  48
  49     qemu_free(s);
  50 }
  51
  52 static int isa_ne2000_initfn(ISADevice *dev)
  53 {
  54     ISANE2000State *isa = DO_UPCAST(ISANE2000State, dev, dev);
  55     NE2000State *s = &isa->ne2000;
  56
  57     register_ioport_write(isa->iobase, 16, 1, ne2000_ioport_write, s);
  58     register_ioport_read(isa->iobase, 16, 1, ne2000_ioport_read, s);
  59
  60     register_ioport_write(isa->iobase + 0x10, 1, 1, ne2000_asic_ioport_write, s);
  61     register_ioport_read(isa->iobase + 0x10, 1, 1, ne2000_asic_ioport_read, s);
  62     register_ioport_write(isa->iobase + 0x10, 2, 2, ne2000_asic_ioport_write, s);
  63     register_ioport_read(isa->iobase + 0x10, 2, 2, ne2000_asic_ioport_read, s);
  64
  65     register_ioport_write(isa->iobase + 0x1f, 1, 1, ne2000_reset_ioport_write, s);
  66     register_ioport_read(isa->iobase + 0x1f, 1, 1, ne2000_reset_ioport_read, s);
  67
  68     isa_init_irq(dev, &s->irq, isa->isairq);
  69
  70     qdev_get_macaddr(&dev->qdev, s->macaddr);
  71     ne2000_reset(s);
  72
  73     s->vc = qdev_get_vlan_client(&dev->qdev,
  74                                  ne2000_can_receive, ne2000_receive, NULL,
  75                                  isa_ne2000_cleanup, s);
  76     qemu_format_nic_info_str(s->vc, s->macaddr);
  77
  78     register_savevm("ne2000", -1, 2, ne2000_save, ne2000_load, s);
  79     return 0;
  80 }
  81
  82 void isa_ne2000_init(int base, int irq, NICInfo *nd)
  83 {
  84     ISADevice *dev;
  85
  86     qemu_check_nic_model(nd, "ne2k_isa");
  87
  88     dev = isa_create("ne2k_isa");
  89     dev->qdev.nd = nd; /* hack alert */
  90     qdev_prop_set_uint32(&dev->qdev, "iobase", base);
  91     qdev_prop_set_uint32(&dev->qdev, "irq",    irq);
  92     qdev_init(&dev->qdev);
  93 }
  94
  95 static ISADeviceInfo ne2000_isa_info = {
  96     .qdev.name  = "ne2k_isa",
  97     .qdev.size  = sizeof(ISANE2000State),
  98     .init       = isa_ne2000_initfn,
  99     .qdev.props = (Property[]) {
 100         DEFINE_PROP_HEX32("iobase", ISANE2000State, iobase, 0x300),
 101         DEFINE_PROP_UINT32("irq",   ISANE2000State, isairq, 9),
 102         DEFINE_PROP_END_OF_LIST(),
 103     },
 104 };
 105
 106 static void ne2000_isa_register_devices(void)
 107 {
 108     isa_qdev_register(&ne2000_isa_info);
 109 }
 110
 111 device_init(ne2000_isa_register_devices)