2 * QEMU AMD PC-Net II (Am79C970A) emulation
4 * Copyright (c) 2004 Antony T Curtis
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 /* This software was written to be compatible with the specification:
26 * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet
27 * AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000
31 * On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also
32 * produced as NCR89C100. See
33 * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt
35 * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt
38 #include "hw/sysbus.h"
40 #include "qemu/timer.h"
41 #include "qemu/sockets.h"
42 #include "hw/sparc/sun4m.h"
46 #define TYPE_LANCE "lance"
47 #define SYSBUS_PCNET(obj) \
48 OBJECT_CHECK(SysBusPCNetState, (obj), TYPE_LANCE)
51 SysBusDevice parent_obj
;
56 static void parent_lance_reset(void *opaque
, int irq
, int level
)
58 SysBusPCNetState
*d
= opaque
;
60 pcnet_h_reset(&d
->state
);
63 static void lance_mem_write(void *opaque
, hwaddr addr
,
64 uint64_t val
, unsigned size
)
66 SysBusPCNetState
*d
= opaque
;
68 trace_lance_mem_writew(addr
, val
& 0xffff);
69 pcnet_ioport_writew(&d
->state
, addr
, val
& 0xffff);
72 static uint64_t lance_mem_read(void *opaque
, hwaddr addr
,
75 SysBusPCNetState
*d
= opaque
;
78 val
= pcnet_ioport_readw(&d
->state
, addr
);
79 trace_lance_mem_readw(addr
, val
& 0xffff);
83 static const MemoryRegionOps lance_mem_ops
= {
84 .read
= lance_mem_read
,
85 .write
= lance_mem_write
,
86 .endianness
= DEVICE_NATIVE_ENDIAN
,
93 static void lance_cleanup(NetClientState
*nc
)
95 PCNetState
*d
= qemu_get_nic_opaque(nc
);
97 pcnet_common_cleanup(d
);
100 static NetClientInfo net_lance_info
= {
101 .type
= NET_CLIENT_OPTIONS_KIND_NIC
,
102 .size
= sizeof(NICState
),
103 .can_receive
= pcnet_can_receive
,
104 .receive
= pcnet_receive
,
105 .link_status_changed
= pcnet_set_link_status
,
106 .cleanup
= lance_cleanup
,
109 static const VMStateDescription vmstate_lance
= {
112 .minimum_version_id
= 2,
113 .minimum_version_id_old
= 2,
114 .fields
= (VMStateField
[]) {
115 VMSTATE_STRUCT(state
, SysBusPCNetState
, 0, vmstate_pcnet
, PCNetState
),
116 VMSTATE_END_OF_LIST()
120 static int lance_init(SysBusDevice
*sbd
)
122 DeviceState
*dev
= DEVICE(sbd
);
123 SysBusPCNetState
*d
= SYSBUS_PCNET(dev
);
124 PCNetState
*s
= &d
->state
;
126 memory_region_init_io(&s
->mmio
, OBJECT(d
), &lance_mem_ops
, d
,
129 qdev_init_gpio_in(dev
, parent_lance_reset
, 1);
131 sysbus_init_mmio(sbd
, &s
->mmio
);
133 sysbus_init_irq(sbd
, &s
->irq
);
135 s
->phys_mem_read
= ledma_memory_read
;
136 s
->phys_mem_write
= ledma_memory_write
;
137 return pcnet_common_init(dev
, s
, &net_lance_info
);
140 static void lance_reset(DeviceState
*dev
)
142 SysBusPCNetState
*d
= SYSBUS_PCNET(dev
);
144 pcnet_h_reset(&d
->state
);
147 static Property lance_properties
[] = {
148 DEFINE_PROP_PTR("dma", SysBusPCNetState
, state
.dma_opaque
),
149 DEFINE_NIC_PROPERTIES(SysBusPCNetState
, state
.conf
),
150 DEFINE_PROP_END_OF_LIST(),
153 static void lance_class_init(ObjectClass
*klass
, void *data
)
155 DeviceClass
*dc
= DEVICE_CLASS(klass
);
156 SysBusDeviceClass
*k
= SYS_BUS_DEVICE_CLASS(klass
);
158 k
->init
= lance_init
;
159 set_bit(DEVICE_CATEGORY_NETWORK
, dc
->categories
);
160 dc
->fw_name
= "ethernet";
161 dc
->reset
= lance_reset
;
162 dc
->vmsd
= &vmstate_lance
;
163 dc
->props
= lance_properties
;
164 /* Reason: pointer property "dma" */
165 dc
->cannot_instantiate_with_device_add_yet
= true;
168 static const TypeInfo lance_info
= {
170 .parent
= TYPE_SYS_BUS_DEVICE
,
171 .instance_size
= sizeof(SysBusPCNetState
),
172 .class_init
= lance_class_init
,
175 static void lance_register_types(void)
177 type_register_static(&lance_info
);
180 type_init(lance_register_types
)