--- /dev/null
+/*
+ * QEMU AMD PC-Net II (Am79C970A) PCI 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
+ */
+
+#include "pci.h"
+#include "net.h"
+#include "loader.h"
+#include "qemu-timer.h"
+
+#include "pcnet.h"
+
+//#define PCNET_DEBUG
+//#define PCNET_DEBUG_IO
+//#define PCNET_DEBUG_BCR
+//#define PCNET_DEBUG_CSR
+//#define PCNET_DEBUG_RMD
+//#define PCNET_DEBUG_TMD
+//#define PCNET_DEBUG_MATCH
+
+
+typedef struct {
+ PCIDevice pci_dev;
+ PCNetState state;
+} PCIPCNetState;
+
+static void pcnet_aprom_writeb(void *opaque, uint32_t addr, uint32_t val)
+{
+ PCNetState *s = opaque;
+#ifdef PCNET_DEBUG
+ printf("pcnet_aprom_writeb addr=0x%08x val=0x%02x\n", addr, val);
+#endif
+ /* Check APROMWE bit to enable write access */
+ if (pcnet_bcr_readw(s,2) & 0x100)
+ s->prom[addr & 15] = val;
+}
+
+static uint32_t pcnet_aprom_readb(void *opaque, uint32_t addr)
+{
+ PCNetState *s = opaque;
+ uint32_t val = s->prom[addr & 15];
+#ifdef PCNET_DEBUG
+ printf("pcnet_aprom_readb addr=0x%08x val=0x%02x\n", addr, val);
+#endif
+ return val;
+}
+
+static void pcnet_ioport_map(PCIDevice *pci_dev, int region_num,
+ pcibus_t addr, pcibus_t size, int type)
+{
+ PCNetState *d = &DO_UPCAST(PCIPCNetState, pci_dev, pci_dev)->state;
+
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_map addr=0x%04"FMT_PCIBUS" size=0x%04"FMT_PCIBUS"\n",
+ addr, size);
+#endif
+
+ register_ioport_write(addr, 16, 1, pcnet_aprom_writeb, d);
+ register_ioport_read(addr, 16, 1, pcnet_aprom_readb, d);
+
+ register_ioport_write(addr + 0x10, 0x10, 2, pcnet_ioport_writew, d);
+ register_ioport_read(addr + 0x10, 0x10, 2, pcnet_ioport_readw, d);
+ register_ioport_write(addr + 0x10, 0x10, 4, pcnet_ioport_writel, d);
+ register_ioport_read(addr + 0x10, 0x10, 4, pcnet_ioport_readl, d);
+}
+
+static void pcnet_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ PCNetState *d = opaque;
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_writeb addr=0x" TARGET_FMT_plx" val=0x%02x\n", addr,
+ val);
+#endif
+ if (!(addr & 0x10))
+ pcnet_aprom_writeb(d, addr & 0x0f, val);
+}
+
+static uint32_t pcnet_mmio_readb(void *opaque, target_phys_addr_t addr)
+{
+ PCNetState *d = opaque;
+ uint32_t val = -1;
+ if (!(addr & 0x10))
+ val = pcnet_aprom_readb(d, addr & 0x0f);
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_readb addr=0x" TARGET_FMT_plx " val=0x%02x\n", addr,
+ val & 0xff);
+#endif
+ return val;
+}
+
+static void pcnet_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ PCNetState *d = opaque;
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_writew addr=0x" TARGET_FMT_plx " val=0x%04x\n", addr,
+ val);
+#endif
+ if (addr & 0x10)
+ pcnet_ioport_writew(d, addr & 0x0f, val);
+ else {
+ addr &= 0x0f;
+ pcnet_aprom_writeb(d, addr, val & 0xff);
+ pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
+ }
+}
+
+static uint32_t pcnet_mmio_readw(void *opaque, target_phys_addr_t addr)
+{
+ PCNetState *d = opaque;
+ uint32_t val = -1;
+ if (addr & 0x10)
+ val = pcnet_ioport_readw(d, addr & 0x0f);
+ else {
+ addr &= 0x0f;
+ val = pcnet_aprom_readb(d, addr+1);
+ val <<= 8;
+ val |= pcnet_aprom_readb(d, addr);
+ }
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_readw addr=0x" TARGET_FMT_plx" val = 0x%04x\n", addr,
+ val & 0xffff);
+#endif
+ return val;
+}
+
+static void pcnet_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ PCNetState *d = opaque;
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_writel addr=0x" TARGET_FMT_plx" val=0x%08x\n", addr,
+ val);
+#endif
+ if (addr & 0x10)
+ pcnet_ioport_writel(d, addr & 0x0f, val);
+ else {
+ addr &= 0x0f;
+ pcnet_aprom_writeb(d, addr, val & 0xff);
+ pcnet_aprom_writeb(d, addr+1, (val & 0xff00) >> 8);
+ pcnet_aprom_writeb(d, addr+2, (val & 0xff0000) >> 16);
+ pcnet_aprom_writeb(d, addr+3, (val & 0xff000000) >> 24);
+ }
+}
+
+static uint32_t pcnet_mmio_readl(void *opaque, target_phys_addr_t addr)
+{
+ PCNetState *d = opaque;
+ uint32_t val;
+ if (addr & 0x10)
+ val = pcnet_ioport_readl(d, addr & 0x0f);
+ else {
+ addr &= 0x0f;
+ val = pcnet_aprom_readb(d, addr+3);
+ val <<= 8;
+ val |= pcnet_aprom_readb(d, addr+2);
+ val <<= 8;
+ val |= pcnet_aprom_readb(d, addr+1);
+ val <<= 8;
+ val |= pcnet_aprom_readb(d, addr);
+ }
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_readl addr=0x" TARGET_FMT_plx " val=0x%08x\n", addr,
+ val);
+#endif
+ return val;
+}
+
+static const VMStateDescription vmstate_pci_pcnet = {
+ .name = "pcnet",
+ .version_id = 3,
+ .minimum_version_id = 2,
+ .minimum_version_id_old = 2,
+ .fields = (VMStateField []) {
+ VMSTATE_PCI_DEVICE(pci_dev, PCIPCNetState),
+ VMSTATE_STRUCT(state, PCIPCNetState, 0, vmstate_pcnet, PCNetState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+/* PCI interface */
+
+static CPUWriteMemoryFunc * const pcnet_mmio_write[] = {
+ &pcnet_mmio_writeb,
+ &pcnet_mmio_writew,
+ &pcnet_mmio_writel
+};
+
+static CPUReadMemoryFunc * const pcnet_mmio_read[] = {
+ &pcnet_mmio_readb,
+ &pcnet_mmio_readw,
+ &pcnet_mmio_readl
+};
+
+static void pcnet_mmio_map(PCIDevice *pci_dev, int region_num,
+ pcibus_t addr, pcibus_t size, int type)
+{
+ PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, pci_dev);
+
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_mmio_map addr=0x%08"FMT_PCIBUS" 0x%08"FMT_PCIBUS"\n",
+ addr, size);
+#endif
+
+ cpu_register_physical_memory(addr, PCNET_PNPMMIO_SIZE, d->state.mmio_index);
+}
+
+static void pci_physical_memory_write(void *dma_opaque, target_phys_addr_t addr,
+ uint8_t *buf, int len, int do_bswap)
+{
+ cpu_physical_memory_write(addr, buf, len);
+}
+
+static void pci_physical_memory_read(void *dma_opaque, target_phys_addr_t addr,
+ uint8_t *buf, int len, int do_bswap)
+{
+ cpu_physical_memory_read(addr, buf, len);
+}
+
+static void pci_pcnet_cleanup(VLANClientState *nc)
+{
+ PCNetState *d = DO_UPCAST(NICState, nc, nc)->opaque;
+
+ pcnet_common_cleanup(d);
+}
+
+static int pci_pcnet_uninit(PCIDevice *dev)
+{
+ PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, dev);
+
+ cpu_unregister_io_memory(d->state.mmio_index);
+ qemu_del_timer(d->state.poll_timer);
+ qemu_free_timer(d->state.poll_timer);
+ qemu_del_vlan_client(&d->state.nic->nc);
+ return 0;
+}
+
+static NetClientInfo net_pci_pcnet_info = {
+ .type = NET_CLIENT_TYPE_NIC,
+ .size = sizeof(NICState),
+ .can_receive = pcnet_can_receive,
+ .receive = pcnet_receive,
+ .cleanup = pci_pcnet_cleanup,
+};
+
+static int pci_pcnet_init(PCIDevice *pci_dev)
+{
+ PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, pci_dev);
+ PCNetState *s = &d->state;
+ uint8_t *pci_conf;
+
+#if 0
+ printf("sizeof(RMD)=%d, sizeof(TMD)=%d\n",
+ sizeof(struct pcnet_RMD), sizeof(struct pcnet_TMD));
+#endif
+
+ pci_conf = pci_dev->config;
+
+ pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_AMD);
+ pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_AMD_LANCE);
+ pci_set_word(pci_conf + PCI_STATUS,
+ PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM);
+ pci_conf[PCI_REVISION_ID] = 0x10;
+ pci_config_set_class(pci_conf, PCI_CLASS_NETWORK_ETHERNET);
+
+ pci_set_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID, 0x0);
+ pci_set_word(pci_conf + PCI_SUBSYSTEM_ID, 0x0);
+
+ pci_conf[PCI_INTERRUPT_PIN] = 1; // interrupt pin 0
+ pci_conf[PCI_MIN_GNT] = 0x06;
+ pci_conf[PCI_MAX_LAT] = 0xff;
+
+ /* Handler for memory-mapped I/O */
+ s->mmio_index =
+ cpu_register_io_memory(pcnet_mmio_read, pcnet_mmio_write, &d->state);
+
+ pci_register_bar(pci_dev, 0, PCNET_IOPORT_SIZE,
+ PCI_BASE_ADDRESS_SPACE_IO, pcnet_ioport_map);
+
+ pci_register_bar(pci_dev, 1, PCNET_PNPMMIO_SIZE,
+ PCI_BASE_ADDRESS_SPACE_MEMORY, pcnet_mmio_map);
+
+ s->irq = pci_dev->irq[0];
+ s->phys_mem_read = pci_physical_memory_read;
+ s->phys_mem_write = pci_physical_memory_write;
+
+ if (!pci_dev->qdev.hotplugged) {
+ static int loaded = 0;
+ if (!loaded) {
+ rom_add_option("pxe-pcnet.bin");
+ loaded = 1;
+ }
+ }
+
+ return pcnet_common_init(&pci_dev->qdev, s, &net_pci_pcnet_info);
+}
+
+static void pci_reset(DeviceState *dev)
+{
+ PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev.qdev, dev);
+
+ pcnet_h_reset(&d->state);
+}
+
+static PCIDeviceInfo pcnet_info = {
+ .qdev.name = "pcnet",
+ .qdev.size = sizeof(PCIPCNetState),
+ .qdev.reset = pci_reset,
+ .qdev.vmsd = &vmstate_pci_pcnet,
+ .init = pci_pcnet_init,
+ .exit = pci_pcnet_uninit,
+ .qdev.props = (Property[]) {
+ DEFINE_NIC_PROPERTIES(PCIPCNetState, state.conf),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void pci_pcnet_register_devices(void)
+{
+ pci_qdev_register(&pcnet_info);
+}
+
+device_init(pci_pcnet_register_devices)
projects / sdk / emulator / qemu.git / commitdiff