2 * QEMU AMD PC-Net II (Am79C970A) PCI 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
33 #include "qemu-timer.h"
38 //#define PCNET_DEBUG_IO
39 //#define PCNET_DEBUG_BCR
40 //#define PCNET_DEBUG_CSR
41 //#define PCNET_DEBUG_RMD
42 //#define PCNET_DEBUG_TMD
43 //#define PCNET_DEBUG_MATCH
51 static void pcnet_aprom_writeb(void *opaque, uint32_t addr, uint32_t val)
53 PCNetState *s = opaque;
55 printf("pcnet_aprom_writeb addr=0x%08x val=0x%02x\n", addr, val);
57 /* Check APROMWE bit to enable write access */
58 if (pcnet_bcr_readw(s,2) & 0x100)
59 s->prom[addr & 15] = val;
62 static uint32_t pcnet_aprom_readb(void *opaque, uint32_t addr)
64 PCNetState *s = opaque;
65 uint32_t val = s->prom[addr & 15];
67 printf("pcnet_aprom_readb addr=0x%08x val=0x%02x\n", addr, val);
72 static void pcnet_ioport_map(PCIDevice *pci_dev, int region_num,
73 pcibus_t addr, pcibus_t size, int type)
75 PCNetState *d = &DO_UPCAST(PCIPCNetState, pci_dev, pci_dev)->state;
78 printf("pcnet_ioport_map addr=0x%04"FMT_PCIBUS" size=0x%04"FMT_PCIBUS"\n",
82 register_ioport_write(addr, 16, 1, pcnet_aprom_writeb, d);
83 register_ioport_read(addr, 16, 1, pcnet_aprom_readb, d);
85 register_ioport_write(addr + 0x10, 0x10, 2, pcnet_ioport_writew, d);
86 register_ioport_read(addr + 0x10, 0x10, 2, pcnet_ioport_readw, d);
87 register_ioport_write(addr + 0x10, 0x10, 4, pcnet_ioport_writel, d);
88 register_ioport_read(addr + 0x10, 0x10, 4, pcnet_ioport_readl, d);
91 static void pcnet_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
93 PCNetState *d = opaque;
95 printf("pcnet_mmio_writeb addr=0x" TARGET_FMT_plx" val=0x%02x\n", addr,
99 pcnet_aprom_writeb(d, addr & 0x0f, val);
102 static uint32_t pcnet_mmio_readb(void *opaque, target_phys_addr_t addr)
104 PCNetState *d = opaque;
107 val = pcnet_aprom_readb(d, addr & 0x0f);
108 #ifdef PCNET_DEBUG_IO
109 printf("pcnet_mmio_readb addr=0x" TARGET_FMT_plx " val=0x%02x\n", addr,
115 static void pcnet_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
117 PCNetState *d = opaque;
118 #ifdef PCNET_DEBUG_IO
119 printf("pcnet_mmio_writew addr=0x" TARGET_FMT_plx " val=0x%04x\n", addr,
123 pcnet_ioport_writew(d, addr & 0x0f, val);
126 pcnet_aprom_writeb(d, addr, val & 0xff);
127 pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
131 static uint32_t pcnet_mmio_readw(void *opaque, target_phys_addr_t addr)
133 PCNetState *d = opaque;
136 val = pcnet_ioport_readw(d, addr & 0x0f);
139 val = pcnet_aprom_readb(d, addr+1);
141 val |= pcnet_aprom_readb(d, addr);
143 #ifdef PCNET_DEBUG_IO
144 printf("pcnet_mmio_readw addr=0x" TARGET_FMT_plx" val = 0x%04x\n", addr,
150 static void pcnet_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
152 PCNetState *d = opaque;
153 #ifdef PCNET_DEBUG_IO
154 printf("pcnet_mmio_writel addr=0x" TARGET_FMT_plx" val=0x%08x\n", addr,
158 pcnet_ioport_writel(d, addr & 0x0f, val);
161 pcnet_aprom_writeb(d, addr, val & 0xff);
162 pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
163 pcnet_aprom_writeb(d, addr+2, (val & 0xff0000) >> 16);
164 pcnet_aprom_writeb(d, addr+3, (val & 0xff000000) >> 24);
168 static uint32_t pcnet_mmio_readl(void *opaque, target_phys_addr_t addr)
170 PCNetState *d = opaque;
173 val = pcnet_ioport_readl(d, addr & 0x0f);
176 val = pcnet_aprom_readb(d, addr+3);
178 val |= pcnet_aprom_readb(d, addr+2);
180 val |= pcnet_aprom_readb(d, addr+1);
182 val |= pcnet_aprom_readb(d, addr);
184 #ifdef PCNET_DEBUG_IO
185 printf("pcnet_mmio_readl addr=0x" TARGET_FMT_plx " val=0x%08x\n", addr,
191 static const VMStateDescription vmstate_pci_pcnet = {
194 .minimum_version_id = 2,
195 .minimum_version_id_old = 2,
196 .fields = (VMStateField []) {
197 VMSTATE_PCI_DEVICE(pci_dev, PCIPCNetState),
198 VMSTATE_STRUCT(state, PCIPCNetState, 0, vmstate_pcnet, PCNetState),
199 VMSTATE_END_OF_LIST()
205 static CPUWriteMemoryFunc * const pcnet_mmio_write[] = {
211 static CPUReadMemoryFunc * const pcnet_mmio_read[] = {
217 static void pci_physical_memory_write(void *dma_opaque, target_phys_addr_t addr,
218 uint8_t *buf, int len, int do_bswap)
220 cpu_physical_memory_write(addr, buf, len);
223 static void pci_physical_memory_read(void *dma_opaque, target_phys_addr_t addr,
224 uint8_t *buf, int len, int do_bswap)
226 cpu_physical_memory_read(addr, buf, len);
229 static void pci_pcnet_cleanup(VLANClientState *nc)
231 PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque;
233 pcnet_common_cleanup(d);
236 static int pci_pcnet_uninit(PCIDevice *dev)
238 PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, dev);
240 cpu_unregister_io_memory(d->state.mmio_index);
241 qemu_del_timer(d->state.poll_timer);
242 qemu_free_timer(d->state.poll_timer);
243 qemu_del_vlan_client(&d->state.nic->nc);
247 static NetClientInfo net_pci_pcnet_info = {
248 .type = NET_CLIENT_TYPE_NIC,
249 .size = sizeof(NICState),
250 .can_receive = pcnet_can_receive,
251 .receive = pcnet_receive,
252 .cleanup = pci_pcnet_cleanup,
255 static int pci_pcnet_init(PCIDevice *pci_dev)
257 PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, pci_dev);
258 PCNetState *s = &d->state;
262 printf("sizeof(RMD)=%d, sizeof(TMD)=%d\n",
263 sizeof(struct pcnet_RMD), sizeof(struct pcnet_TMD));
266 pci_conf = pci_dev->config;
268 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_AMD);
269 pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_AMD_LANCE);
270 pci_set_word(pci_conf + PCI_STATUS,
271 PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM);
272 pci_conf[PCI_REVISION_ID] = 0x10;
273 pci_config_set_class(pci_conf, PCI_CLASS_NETWORK_ETHERNET);
275 pci_set_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID, 0x0);
276 pci_set_word(pci_conf + PCI_SUBSYSTEM_ID, 0x0);
278 pci_conf[PCI_INTERRUPT_PIN] = 1; // interrupt pin 0
279 pci_conf[PCI_MIN_GNT] = 0x06;
280 pci_conf[PCI_MAX_LAT] = 0xff;
282 /* Handler for memory-mapped I/O */
284 cpu_register_io_memory(pcnet_mmio_read, pcnet_mmio_write, &d->state,
285 DEVICE_NATIVE_ENDIAN);
287 pci_register_bar(pci_dev, 0, PCNET_IOPORT_SIZE,
288 PCI_BASE_ADDRESS_SPACE_IO, pcnet_ioport_map);
290 pci_register_bar_simple(pci_dev, 1, PCNET_PNPMMIO_SIZE, 0, s->mmio_index);
292 s->irq = pci_dev->irq[0];
293 s->phys_mem_read = pci_physical_memory_read;
294 s->phys_mem_write = pci_physical_memory_write;
296 if (!pci_dev->qdev.hotplugged) {
297 static int loaded = 0;
299 rom_add_option("pxe-pcnet.rom", -1);
304 return pcnet_common_init(&pci_dev->qdev, s, &net_pci_pcnet_info);
307 static void pci_reset(DeviceState *dev)
309 PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev.qdev, dev);
311 pcnet_h_reset(&d->state);
314 static PCIDeviceInfo pcnet_info = {
315 .qdev.name = "pcnet",
316 .qdev.size = sizeof(PCIPCNetState),
317 .qdev.reset = pci_reset,
318 .qdev.vmsd = &vmstate_pci_pcnet,
319 .init = pci_pcnet_init,
320 .exit = pci_pcnet_uninit,
321 .qdev.props = (Property[]) {
322 DEFINE_NIC_PROPERTIES(PCIPCNetState, state.conf),
323 DEFINE_PROP_END_OF_LIST(),
327 static void pci_pcnet_register_devices(void)
329 pci_qdev_register(&pcnet_info);
332 device_init(pci_pcnet_register_devices)