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Annotation of qemu/hw/ne2000-isa.c, revision 1.1

1.1     ! root        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 *nc)
        !            39: {
        !            40:     NE2000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
        !            41: 
        !            42:     s->nic = NULL;
        !            43: }
        !            44: 
        !            45: static NetClientInfo net_ne2000_isa_info = {
        !            46:     .type = NET_CLIENT_TYPE_NIC,
        !            47:     .size = sizeof(NICState),
        !            48:     .can_receive = ne2000_can_receive,
        !            49:     .receive = ne2000_receive,
        !            50:     .cleanup = isa_ne2000_cleanup,
        !            51: };
        !            52: 
        !            53: static const VMStateDescription vmstate_isa_ne2000 = {
        !            54:     .name = "ne2000",
        !            55:     .version_id = 2,
        !            56:     .minimum_version_id = 0,
        !            57:     .minimum_version_id_old = 0,
        !            58:     .fields      = (VMStateField []) {
        !            59:         VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
        !            60:         VMSTATE_END_OF_LIST()
        !            61:     }
        !            62: };
        !            63: 
        !            64: static int isa_ne2000_initfn(ISADevice *dev)
        !            65: {
        !            66:     ISANE2000State *isa = DO_UPCAST(ISANE2000State, dev, dev);
        !            67:     NE2000State *s = &isa->ne2000;
        !            68: 
        !            69:     register_ioport_write(isa->iobase, 16, 1, ne2000_ioport_write, s);
        !            70:     register_ioport_read(isa->iobase, 16, 1, ne2000_ioport_read, s);
        !            71: 
        !            72:     register_ioport_write(isa->iobase + 0x10, 1, 1, ne2000_asic_ioport_write, s);
        !            73:     register_ioport_read(isa->iobase + 0x10, 1, 1, ne2000_asic_ioport_read, s);
        !            74:     register_ioport_write(isa->iobase + 0x10, 2, 2, ne2000_asic_ioport_write, s);
        !            75:     register_ioport_read(isa->iobase + 0x10, 2, 2, ne2000_asic_ioport_read, s);
        !            76: 
        !            77:     register_ioport_write(isa->iobase + 0x1f, 1, 1, ne2000_reset_ioport_write, s);
        !            78:     register_ioport_read(isa->iobase + 0x1f, 1, 1, ne2000_reset_ioport_read, s);
        !            79: 
        !            80:     isa_init_irq(dev, &s->irq, isa->isairq);
        !            81: 
        !            82:     qemu_macaddr_default_if_unset(&s->c.macaddr);
        !            83:     ne2000_reset(s);
        !            84: 
        !            85:     s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
        !            86:                           dev->qdev.info->name, dev->qdev.id, s);
        !            87:     qemu_format_nic_info_str(&s->nic->nc, s->c.macaddr.a);
        !            88: 
        !            89:     return 0;
        !            90: }
        !            91: 
        !            92: void isa_ne2000_init(int base, int irq, NICInfo *nd)
        !            93: {
        !            94:     ISADevice *dev;
        !            95: 
        !            96:     qemu_check_nic_model(nd, "ne2k_isa");
        !            97: 
        !            98:     dev = isa_create("ne2k_isa");
        !            99:     qdev_prop_set_uint32(&dev->qdev, "iobase", base);
        !           100:     qdev_prop_set_uint32(&dev->qdev, "irq",    irq);
        !           101:     qdev_set_nic_properties(&dev->qdev, nd);
        !           102:     qdev_init_nofail(&dev->qdev);
        !           103: }
        !           104: 
        !           105: static ISADeviceInfo ne2000_isa_info = {
        !           106:     .qdev.name  = "ne2k_isa",
        !           107:     .qdev.size  = sizeof(ISANE2000State),
        !           108:     .init       = isa_ne2000_initfn,
        !           109:     .qdev.props = (Property[]) {
        !           110:         DEFINE_PROP_HEX32("iobase", ISANE2000State, iobase, 0x300),
        !           111:         DEFINE_PROP_UINT32("irq",   ISANE2000State, isairq, 9),
        !           112:         DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
        !           113:         DEFINE_PROP_END_OF_LIST(),
        !           114:     },
        !           115: };
        !           116: 
        !           117: static void ne2000_isa_register_devices(void)
        !           118: {
        !           119:     isa_qdev_register(&ne2000_isa_info);
        !           120: }
        !           121: 
        !           122: device_init(ne2000_isa_register_devices)

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