/* * 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 "sysbus.h" #include "net.h" #include "qemu-timer.h" #include "qemu_socket.h" #include "sun4m.h" #include "pcnet.h" #include "trace.h" typedef struct { SysBusDevice busdev; 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, target_phys_addr_t 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, target_phys_addr_t 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 void lance_cleanup(VLANClientState *nc) { PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque; pcnet_common_cleanup(d); } static NetClientInfo net_lance_info = { .type = NET_CLIENT_TYPE_NIC, .size = sizeof(NICState), .can_receive = pcnet_can_receive, .receive = pcnet_receive, .cleanup = lance_cleanup, }; static const VMStateDescription vmstate_lance = { .name = "pcnet", .version_id = 3, .minimum_version_id = 2, .minimum_version_id_old = 2, .fields = (VMStateField []) { VMSTATE_STRUCT(state, SysBusPCNetState, 0, vmstate_pcnet, PCNetState), VMSTATE_END_OF_LIST() } }; static int lance_init(SysBusDevice *dev) { SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev); PCNetState *s = &d->state; memory_region_init_io(&s->mmio, &lance_mem_ops, s, "lance-mmio", 4); qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1); sysbus_init_mmio_region(dev, &s->mmio); sysbus_init_irq(dev, &s->irq); s->phys_mem_read = ledma_memory_read; s->phys_mem_write = ledma_memory_write; return pcnet_common_init(&dev->qdev, s, &net_lance_info); } static void lance_reset(DeviceState *dev) { SysBusPCNetState *d = DO_UPCAST(SysBusPCNetState, busdev.qdev, dev); pcnet_h_reset(&d->state); } static SysBusDeviceInfo lance_info = { .init = lance_init, .qdev.name = "lance", .qdev.fw_name = "ethernet", .qdev.size = sizeof(SysBusPCNetState), .qdev.reset = lance_reset, .qdev.vmsd = &vmstate_lance, .qdev.props = (Property[]) { DEFINE_PROP_PTR("dma", SysBusPCNetState, state.dma_opaque), DEFINE_NIC_PROPERTIES(SysBusPCNetState, state.conf), DEFINE_PROP_END_OF_LIST(), } }; static void lance_register_devices(void) { sysbus_register_withprop(&lance_info); } device_init(lance_register_devices)