X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Fhw%2Fnet%2Flance.c;fp=qemu%2Fhw%2Fnet%2Flance.c;h=780b39d65a50f601595deeb8f1cfbc27d3c16d88;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/hw/net/lance.c b/qemu/hw/net/lance.c new file mode 100644 index 000000000..780b39d65 --- /dev/null +++ b/qemu/hw/net/lance.c @@ -0,0 +1,183 @@ +/* + * QEMU AMD PC-Net II (Am79C970A) emulation + * + * Copyright (c) 2004 Antony T Curtis + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +/* This software was written to be compatible with the specification: + * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet + * AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000 + */ + +/* + * On Sparc32, this is the Lance (Am7990) part of chip STP2000 (Master I/O), also + * produced as NCR89C100. See + * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt + * and + * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR92C990.txt + */ + +#include "hw/sysbus.h" +#include "net/net.h" +#include "qemu/timer.h" +#include "qemu/sockets.h" +#include "hw/sparc/sun4m.h" +#include "pcnet.h" +#include "trace.h" +#include "sysemu/sysemu.h" + +#define TYPE_LANCE "lance" +#define SYSBUS_PCNET(obj) \ + OBJECT_CHECK(SysBusPCNetState, (obj), TYPE_LANCE) + +typedef struct { + SysBusDevice parent_obj; + + PCNetState state; +} SysBusPCNetState; + +static void parent_lance_reset(void *opaque, int irq, int level) +{ + SysBusPCNetState *d = opaque; + if (level) + pcnet_h_reset(&d->state); +} + +static void lance_mem_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + SysBusPCNetState *d = opaque; + + trace_lance_mem_writew(addr, val & 0xffff); + pcnet_ioport_writew(&d->state, addr, val & 0xffff); +} + +static uint64_t lance_mem_read(void *opaque, hwaddr addr, + unsigned size) +{ + SysBusPCNetState *d = opaque; + uint32_t val; + + val = pcnet_ioport_readw(&d->state, addr); + trace_lance_mem_readw(addr, val & 0xffff); + return val & 0xffff; +} + +static const MemoryRegionOps lance_mem_ops = { + .read = lance_mem_read, + .write = lance_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .valid = { + .min_access_size = 2, + .max_access_size = 2, + }, +}; + +static NetClientInfo net_lance_info = { + .type = NET_CLIENT_OPTIONS_KIND_NIC, + .size = sizeof(NICState), + .receive = pcnet_receive, + .link_status_changed = pcnet_set_link_status, +}; + +static const VMStateDescription vmstate_lance = { + .name = "pcnet", + .version_id = 3, + .minimum_version_id = 2, + .fields = (VMStateField[]) { + VMSTATE_STRUCT(state, SysBusPCNetState, 0, vmstate_pcnet, PCNetState), + VMSTATE_END_OF_LIST() + } +}; + +static int lance_init(SysBusDevice *sbd) +{ + DeviceState *dev = DEVICE(sbd); + SysBusPCNetState *d = SYSBUS_PCNET(dev); + PCNetState *s = &d->state; + + memory_region_init_io(&s->mmio, OBJECT(d), &lance_mem_ops, d, + "lance-mmio", 4); + + qdev_init_gpio_in(dev, parent_lance_reset, 1); + + sysbus_init_mmio(sbd, &s->mmio); + + sysbus_init_irq(sbd, &s->irq); + + s->phys_mem_read = ledma_memory_read; + s->phys_mem_write = ledma_memory_write; + pcnet_common_init(dev, s, &net_lance_info); + return 0; +} + +static void lance_reset(DeviceState *dev) +{ + SysBusPCNetState *d = SYSBUS_PCNET(dev); + + pcnet_h_reset(&d->state); +} + +static void lance_instance_init(Object *obj) +{ + SysBusPCNetState *d = SYSBUS_PCNET(obj); + PCNetState *s = &d->state; + + device_add_bootindex_property(obj, &s->conf.bootindex, + "bootindex", "/ethernet-phy@0", + DEVICE(obj), NULL); +} + +static Property lance_properties[] = { + DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque), + DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf), + DEFINE_PROP_END_OF_LIST(), +}; + +static void lance_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + + k->init = lance_init; + set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); + dc->fw_name = "ethernet"; + dc->reset = lance_reset; + dc->vmsd = &vmstate_lance; + dc->props = lance_properties; + /* Reason: pointer property "dma" */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo lance_info = { + .name = TYPE_LANCE, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(SysBusPCNetState), + .class_init = lance_class_init, + .instance_init = lance_instance_init, +}; + +static void lance_register_types(void) +{ + type_register_static(&lance_info); +} + +type_init(lance_register_types)