# HG changeset patch
# User adsharma@xxxxxxxxxxxxxxxxxxxx
# Node ID dc93023f4221b798ed40a662625dd47544b40d04
# Parent 1ae656509f021f7436cd6813c9b50c395d29c3bf
PCNET NIC card support for qemu
Based on:
http://cyberkinetica.homeunix.net/qemu/qemu-pcnet.patch6.gz
Signed-off-by: Nitin Kamble <nitin.a.kamble@xxxxxxxxx>
Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/hw/pc.c
--- a/tools/ioemu/hw/pc.c Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/hw/pc.c Tue Aug 16 21:39:55 2005
@@ -540,7 +540,10 @@
if (pci_enabled) {
for(i = 0; i < nb_nics; i++) {
- pci_ne2000_init(pci_bus, &nd_table[i]);
+ if (nic_pcnet)
+ pci_pcnet_init(pci_bus, &nd_table[i]);
+ else
+ pci_ne2000_init(pci_bus, &nd_table[i]);
}
pci_piix3_ide_init(pci_bus, bs_table);
#ifdef APIC_SUPPORT
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/target-i386-dm/Makefile
--- a/tools/ioemu/target-i386-dm/Makefile Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/target-i386-dm/Makefile Tue Aug 16 21:39:55 2005
@@ -272,7 +272,7 @@
# Hardware support
VL_OBJS+= ide.o ne2000.o pckbd.o vga.o dma.o
VL_OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pc.o port-e9.o
-VL_OBJS+= cirrus_vga.o
+VL_OBJS+= cirrus_vga.o pcnet.o
ifeq ($(TARGET_ARCH), ppc)
VL_OBJS+= ppc.o ide.o ne2000.o pckbd.o vga.o $(SOUND_HW) dma.o $(AUDIODRV)
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/vl.c
--- a/tools/ioemu/vl.c Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/vl.c Tue Aug 16 21:39:55 2005
@@ -125,6 +125,7 @@
QEMUTimer *polling_timer;
int vm_running;
int audio_enabled = 0;
+int nic_pcnet = 1;
int sb16_enabled = 1;
int adlib_enabled = 1;
int gus_enabled = 1;
@@ -2115,6 +2116,7 @@
"-prep Simulate a PREP system (default is PowerMAC)\n"
"-g WxH[xDEPTH] Set the initial VGA graphic mode\n"
#endif
+ "-nic-pcnet simulate an AMD PC-Net PCI ethernet adaptor\n"
"\n"
"Network options:\n"
"-nics n simulate 'n' network cards [default=1]\n"
@@ -2229,6 +2231,7 @@
QEMU_OPTION_L,
QEMU_OPTION_no_code_copy,
QEMU_OPTION_pci,
+ QEMU_OPTION_nic_pcnet,
QEMU_OPTION_isa,
QEMU_OPTION_prep,
QEMU_OPTION_k,
@@ -2313,6 +2316,7 @@
/* temporary options */
{ "pci", 0, QEMU_OPTION_pci },
+ { "nic-pcnet", 0, QEMU_OPTION_nic_pcnet },
{ "cirrusvga", 0, QEMU_OPTION_cirrusvga },
{ NULL },
};
@@ -2639,6 +2643,9 @@
break;
case QEMU_OPTION_pci:
pci_enabled = 1;
+ break;
+ case QEMU_OPTION_nic_pcnet:
+ nic_pcnet = 1;
break;
case QEMU_OPTION_isa:
pci_enabled = 0;
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/vl.h
--- a/tools/ioemu/vl.h Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/vl.h Tue Aug 16 21:39:55 2005
@@ -600,6 +600,12 @@
void isa_ne2000_init(int base, int irq, NetDriverState *nd);
void pci_ne2000_init(PCIBus *bus, NetDriverState *nd);
+/* pcnet.c */
+
+extern int nic_pcnet;
+
+void pci_pcnet_init(PCIBus *bus, NetDriverState *nd);
+
/* pckbd.c */
void kbd_init(void);
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/hw/pcnet.c
--- /dev/null Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/hw/pcnet.c Tue Aug 16 21:39:55 2005
@@ -0,0 +1,1205 @@
+/*
+ * 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
+ */
+
+#include "vl.h"
+#include <sys/times.h>
+#include <arpa/inet.h>
+#include <net/ethernet.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
+
+
+#define PCNET_IOPORT_SIZE 0x20
+#define PCNET_PNPMMIO_SIZE 0x20
+
+
+typedef struct PCNetState_st PCNetState;
+
+struct PCNetState_st {
+ PCIDevice dev;
+ NetDriverState *nd;
+ QEMUTimer *poll_timer;
+ int mmio_io_addr, rap, isr, lnkst;
+ target_phys_addr_t rdra, tdra;
+ uint8_t prom[16];
+ uint16_t csr[128];
+ uint16_t bcr[32];
+ uint64_t timer;
+ int xmit_pos, recv_pos;
+ uint8_t buffer[4096];
+};
+
+#include "pcnet.h"
+
+static void pcnet_poll(PCNetState *s);
+static void pcnet_poll_timer(void *opaque);
+
+static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap);
+static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value);
+static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val);
+static uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap);
+
+static void pcnet_s_reset(PCNetState *s)
+{
+#ifdef PCNET_DEBUG
+ printf("pcnet_s_reset\n");
+#endif
+
+ s->lnkst = 0x40;
+ s->rdra = 0;
+ s->tdra = 0;
+ s->rap = 0;
+
+ s->bcr[BCR_BSBC] &= ~0x0080;
+
+ s->csr[0] = 0x0004;
+ s->csr[3] = 0x0000;
+ s->csr[4] = 0x0115;
+ s->csr[5] = 0x0000;
+ s->csr[6] = 0x0000;
+ s->csr[8] = 0;
+ s->csr[9] = 0;
+ s->csr[10] = 0;
+ s->csr[11] = 0;
+ s->csr[12] = le16_to_cpu(((uint16_t *)&s->prom[0])[0]);
+ s->csr[13] = le16_to_cpu(((uint16_t *)&s->prom[0])[1]);
+ s->csr[14] = le16_to_cpu(((uint16_t *)&s->prom[0])[2]);
+ s->csr[15] &= 0x21c4;
+ s->csr[72] = 1;
+ s->csr[74] = 1;
+ s->csr[76] = 1;
+ s->csr[78] = 1;
+ s->csr[80] = 0x1410;
+ s->csr[88] = 0x1003;
+ s->csr[89] = 0x0262;
+ s->csr[94] = 0x0000;
+ s->csr[100] = 0x0200;
+ s->csr[103] = 0x0105;
+ s->csr[103] = 0x0105;
+ s->csr[112] = 0x0000;
+ s->csr[114] = 0x0000;
+ s->csr[122] = 0x0000;
+ s->csr[124] = 0x0000;
+}
+
+static void pcnet_update_irq(PCNetState *s)
+{
+ int isr = 0;
+ s->csr[0] &= ~0x0080;
+
+#if 1
+ if (((s->csr[0] & ~s->csr[3]) & 0x5f00) ||
+ (((s->csr[4]>>1) & ~s->csr[4]) & 0x0115) ||
+ (((s->csr[5]>>1) & s->csr[5]) & 0x0048))
+#else
+ if ((!(s->csr[3] & 0x4000) && !!(s->csr[0] & 0x4000)) /* BABL */ ||
+ (!(s->csr[3] & 0x1000) && !!(s->csr[0] & 0x1000)) /* MISS */ ||
+ (!(s->csr[3] & 0x0100) && !!(s->csr[0] & 0x0100)) /* IDON */ ||
+ (!(s->csr[3] & 0x0200) && !!(s->csr[0] & 0x0200)) /* TINT */ ||
+ (!(s->csr[3] & 0x0400) && !!(s->csr[0] & 0x0400)) /* RINT */ ||
+ (!(s->csr[3] & 0x0800) && !!(s->csr[0] & 0x0800)) /* MERR */ ||
+ (!(s->csr[4] & 0x0001) && !!(s->csr[4] & 0x0002)) /* JAB */ ||
+ (!(s->csr[4] & 0x0004) && !!(s->csr[4] & 0x0008)) /* TXSTRT */ ||
+ (!(s->csr[4] & 0x0010) && !!(s->csr[4] & 0x0020)) /* RCVO */ ||
+ (!(s->csr[4] & 0x0100) && !!(s->csr[4] & 0x0200)) /* MFCO */ ||
+ (!!(s->csr[5] & 0x0040) && !!(s->csr[5] & 0x0080)) /* EXDINT */ ||
+ (!!(s->csr[5] & 0x0008) && !!(s->csr[5] & 0x0010)) /* MPINT */)
+#endif
+ {
+
+ isr = CSR_INEA(s);
+ s->csr[0] |= 0x0080;
+ }
+
+ if (!!(s->csr[4] & 0x0080) && CSR_INEA(s)) { /* UINT */
+ s->csr[4] &= ~0x0080;
+ s->csr[4] |= 0x0040;
+ s->csr[0] |= 0x0080;
+ isr = 1;
+#ifdef PCNET_DEBUG
+ printf("pcnet user int\n");
+#endif
+ }
+
+#if 1
+ if (((s->csr[5]>>1) & s->csr[5]) & 0x0500)
+#else
+ if ((!!(s->csr[5] & 0x0400) && !!(s->csr[5] & 0x0800)) /* SINT */ ||
+ (!!(s->csr[5] & 0x0100) && !!(s->csr[5] & 0x0200)) /* SLPINT */ )
+#endif
+ {
+ isr = 1;
+ s->csr[0] |= 0x0080;
+ }
+
+ if (isr != s->isr) {
+#ifdef PCNET_DEBUG
+ printf("pcnet: INTA=%d\n", isr);
+#endif
+ }
+ pci_set_irq(&s->dev, 0, isr);
+ s->isr = isr;
+}
+
+static void pcnet_init(PCNetState *s)
+{
+#ifdef PCNET_DEBUG
+ printf("pcnet_init init_addr=0x%08x\n", PHYSADDR(s,CSR_IADR(s)));
+#endif
+
+#define PCNET_INIT() do { \
+ cpu_physical_memory_read(PHYSADDR(s,CSR_IADR(s)), \
+ (uint8_t *)&initblk, sizeof(initblk)); \
+ s->csr[15] = le16_to_cpu(initblk.mode); \
+ CSR_RCVRL(s) = (initblk.rlen < 9) ? (1 << initblk.rlen) : 512; \
+ CSR_XMTRL(s) = (initblk.tlen < 9) ? (1 << initblk.tlen) : 512; \
+ s->csr[ 6] = (initblk.tlen << 12) | (initblk.rlen << 8); \
+ s->csr[ 8] = le16_to_cpu(initblk.ladrf1); \
+ s->csr[ 9] = le16_to_cpu(initblk.ladrf2); \
+ s->csr[10] = le16_to_cpu(initblk.ladrf3); \
+ s->csr[11] = le16_to_cpu(initblk.ladrf4); \
+ s->csr[12] = le16_to_cpu(initblk.padr1); \
+ s->csr[13] = le16_to_cpu(initblk.padr2); \
+ s->csr[14] = le16_to_cpu(initblk.padr3); \
+ s->rdra = PHYSADDR(s,initblk.rdra); \
+ s->tdra = PHYSADDR(s,initblk.tdra); \
+} while (0)
+
+ if (BCR_SSIZE32(s)) {
+ struct pcnet_initblk32 initblk;
+ PCNET_INIT();
+#ifdef PCNET_DEBUG
+ printf("initblk.rlen=0x%02x, initblk.tlen=0x%02x\n",
+ initblk.rlen, initblk.tlen);
+#endif
+ } else {
+ struct pcnet_initblk16 initblk;
+ PCNET_INIT();
+#ifdef PCNET_DEBUG
+ printf("initblk.rlen=0x%02x, initblk.tlen=0x%02x\n",
+ initblk.rlen, initblk.tlen);
+#endif
+ }
+
+#undef PCNET_INIT
+
+ CSR_RCVRC(s) = CSR_RCVRL(s);
+ CSR_XMTRC(s) = CSR_XMTRL(s);
+
+#ifdef PCNET_DEBUG
+ printf("pcnet ss32=%d rdra=0x%08x[%d] tdra=0x%08x[%d]\n",
+ BCR_SSIZE32(s),
+ s->rdra, CSR_RCVRL(s), s->tdra, CSR_XMTRL(s));
+#endif
+
+ s->csr[0] |= 0x0101;
+ s->csr[0] &= ~0x0004; /* clear STOP bit */
+}
+
+static void pcnet_start(PCNetState *s)
+{
+#ifdef PCNET_DEBUG
+ printf("pcnet_start\n");
+#endif
+
+ if (!CSR_DTX(s))
+ s->csr[0] |= 0x0010; /* set TXON */
+
+ if (!CSR_DRX(s))
+ s->csr[0] |= 0x0020; /* set RXON */
+
+ s->csr[0] &= ~0x0004; /* clear STOP bit */
+ s->csr[0] |= 0x0002;
+}
+
+static void pcnet_stop(PCNetState *s)
+{
+#ifdef PCNET_DEBUG
+ printf("pcnet_stop\n");
+#endif
+ s->csr[0] &= ~0x7feb;
+ s->csr[0] |= 0x0014;
+ s->csr[4] &= ~0x02c2;
+ s->csr[5] &= ~0x0011;
+ pcnet_poll_timer(s);
+}
+
+static void pcnet_rdte_poll(PCNetState *s)
+{
+ s->csr[28] = s->csr[29] = 0;
+ if (s->rdra) {
+ int bad = 0;
+#if 1
+ target_phys_addr_t crda = pcnet_rdra_addr(s, CSR_RCVRC(s));
+ target_phys_addr_t nrda = pcnet_rdra_addr(s, -1 + CSR_RCVRC(s));
+ target_phys_addr_t nnrd = pcnet_rdra_addr(s, -2 + CSR_RCVRC(s));
+#else
+ target_phys_addr_t crda = s->rdra +
+ (CSR_RCVRL(s) - CSR_RCVRC(s)) *
+ (BCR_SWSTYLE(s) ? 16 : 8 );
+ int nrdc = CSR_RCVRC(s)<=1 ? CSR_RCVRL(s) : CSR_RCVRC(s)-1;
+ target_phys_addr_t nrda = s->rdra +
+ (CSR_RCVRL(s) - nrdc) *
+ (BCR_SWSTYLE(s) ? 16 : 8 );
+ int nnrc = nrdc<=1 ? CSR_RCVRL(s) : nrdc-1;
+ target_phys_addr_t nnrd = s->rdra +
+ (CSR_RCVRL(s) - nnrc) *
+ (BCR_SWSTYLE(s) ? 16 : 8 );
+#endif
+
+ CHECK_RMD(PHYSADDR(s,crda), bad);
+ if (!bad) {
+ CHECK_RMD(PHYSADDR(s,nrda), bad);
+ if (bad || (nrda == crda)) nrda = 0;
+ CHECK_RMD(PHYSADDR(s,nnrd), bad);
+ if (bad || (nnrd == crda)) nnrd = 0;
+
+ s->csr[28] = crda & 0xffff;
+ s->csr[29] = crda >> 16;
+ s->csr[26] = nrda & 0xffff;
+ s->csr[27] = nrda >> 16;
+ s->csr[36] = nnrd & 0xffff;
+ s->csr[37] = nnrd >> 16;
+#ifdef PCNET_DEBUG
+ if (bad) {
+ printf("pcnet: BAD RMD RECORDS AFTER 0x%08x\n",
+ PHYSADDR(s,crda));
+ }
+ } else {
+ printf("pcnet: BAD RMD RDA=0x%08x\n", PHYSADDR(s,crda));
+#endif
+ }
+ }
+
+ if (CSR_CRDA(s)) {
+ struct pcnet_RMD rmd;
+ RMDLOAD(&rmd, PHYSADDR(s,CSR_CRDA(s)));
+ CSR_CRBC(s) = rmd.rmd1.bcnt;
+ CSR_CRST(s) = ((uint32_t *)&rmd)[1] >> 16;
+#ifdef PCNET_DEBUG_RMD_X
+ printf("CRDA=0x%08x CRST=0x%04x RCVRC=%d RMD1=0x%08x RMD2=0x%08x\n",
+ PHYSADDR(s,CSR_CRDA(s)), CSR_CRST(s), CSR_RCVRC(s),
+ ((uint32_t *)&rmd)[1], ((uint32_t *)&rmd)[2]);
+ PRINT_RMD(&rmd);
+#endif
+ } else {
+ CSR_CRBC(s) = CSR_CRST(s) = 0;
+ }
+
+ if (CSR_NRDA(s)) {
+ struct pcnet_RMD rmd;
+ RMDLOAD(&rmd, PHYSADDR(s,CSR_NRDA(s)));
+ CSR_NRBC(s) = rmd.rmd1.bcnt;
+ CSR_NRST(s) = ((uint32_t *)&rmd)[1] >> 16;
+ } else {
+ CSR_NRBC(s) = CSR_NRST(s) = 0;
+ }
+
+}
+
+static int pcnet_tdte_poll(PCNetState *s)
+{
+ s->csr[34] = s->csr[35] = 0;
+ if (s->tdra) {
+ target_phys_addr_t cxda = s->tdra +
+ (CSR_XMTRL(s) - CSR_XMTRC(s)) *
+ (BCR_SWSTYLE(s) ? 16 : 8 );
+ int bad = 0;
+ CHECK_TMD(PHYSADDR(s, cxda),bad);
+ if (!bad) {
+ if (CSR_CXDA(s) != cxda) {
+ s->csr[60] = s->csr[34];
+ s->csr[61] = s->csr[35];
+ s->csr[62] = CSR_CXBC(s);
+ s->csr[63] = CSR_CXST(s);
+ }
+ s->csr[34] = cxda & 0xffff;
+ s->csr[35] = cxda >> 16;
+#ifdef PCNET_DEBUG
+ } else {
+ printf("pcnet: BAD TMD XDA=0x%08x\n", PHYSADDR(s,cxda));
+#endif
+ }
+ }
+
+ if (CSR_CXDA(s)) {
+ struct pcnet_TMD tmd;
+
+ TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
+
+ CSR_CXBC(s) = tmd.tmd1.bcnt;
+ CSR_CXST(s) = ((uint32_t *)&tmd)[1] >> 16;
+ } else {
+ CSR_CXBC(s) = CSR_CXST(s) = 0;
+ }
+
+ return !!(CSR_CXST(s) & 0x8000);
+}
+
+static int pcnet_can_receive(void *opaque)
+{
+ PCNetState *s = opaque;
+ if (CSR_STOP(s) || CSR_SPND(s))
+ return 0;
+
+ if (s->recv_pos > 0)
+ return 0;
+
+ return sizeof(s->buffer)-16;
+}
+
+static void pcnet_receive(void *opaque, const uint8_t *buf, int size)
+{
+ PCNetState *s = opaque;
+ int is_padr = 0, is_bcast = 0, is_ladr = 0;
+
+ if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size)
+ return;
+
+#ifdef PCNET_DEBUG
+ printf("pcnet_receive size=%d\n", size);
+#endif
+
+ if (CSR_PROM(s)
+ || (is_padr=padr_match(s, buf, size))
+ || (is_bcast=padr_bcast(s, buf, size))
+ || (is_ladr=ladr_match(s, buf, size))) {
+
+ pcnet_rdte_poll(s);
+
+ if (!(CSR_CRST(s) & 0x8000) && s->rdra) {
+ struct pcnet_RMD rmd;
+ int rcvrc = CSR_RCVRC(s)-1,i;
+ target_phys_addr_t nrda;
+ for (i = CSR_RCVRL(s)-1; i > 0; i--, rcvrc--) {
+ if (rcvrc <= 1)
+ rcvrc = CSR_RCVRL(s);
+ nrda = s->rdra +
+ (CSR_RCVRL(s) - rcvrc) *
+ (BCR_SWSTYLE(s) ? 16 : 8 );
+ RMDLOAD(&rmd, PHYSADDR(s,nrda));
+ if (rmd.rmd1.own) {
+#ifdef PCNET_DEBUG_RMD
+ printf("pcnet - scan buffer: RCVRC=%d PREV_RCVRC=%d\n",
+ rcvrc, CSR_RCVRC(s));
+#endif
+ CSR_RCVRC(s) = rcvrc;
+ pcnet_rdte_poll(s);
+ break;
+ }
+ }
+ }
+
+ if (!(CSR_CRST(s) & 0x8000)) {
+#ifdef PCNET_DEBUG_RMD
+ printf("pcnet - no buffer: RCVRC=%d\n", CSR_RCVRC(s));
+#endif
+ s->csr[0] |= 0x1000; /* Set MISS flag */
+ CSR_MISSC(s)++;
+ } else {
+ uint8_t *src = &s->buffer[8];
+ target_phys_addr_t crda = CSR_CRDA(s);
+ struct pcnet_RMD rmd;
+ int pktcount = 0;
+
+ memcpy(src, buf, size);
+
+ if (!CSR_ASTRP_RCV(s)) {
+ uint32_t fcs = ~0;
+#if 0
+ uint8_t *p = s->buffer;
+
+ ((uint32_t *)p)[0] = ((uint32_t *)p)[1] = 0xaaaaaaaa;
+ p[7] = 0xab;
+#else
+ uint8_t *p = src;
+#endif
+
+ while (size < 46) {
+ src[size++] = 0;
+ }
+
+ while (p != &src[size]) {
+ CRC(fcs, *p++);
+ }
+ ((uint32_t *)&src[size])[0] = htonl(fcs);
+ size += 4; /* FCS at end of packet */
+ } else size += 4;
+
+#ifdef PCNET_DEBUG_MATCH
+ PRINT_PKTHDR(buf);
+#endif
+
+ RMDLOAD(&rmd, PHYSADDR(s,crda));
+ /*if (!CSR_LAPPEN(s))*/
+ rmd.rmd1.stp = 1;
+
+#define PCNET_RECV_STORE() do { \
+ int count = MIN(4096 - rmd.rmd1.bcnt,size); \
+ target_phys_addr_t rbadr = PHYSADDR(s, rmd.rmd0.rbadr); \
+ cpu_physical_memory_write(rbadr, src, count); \
+ cpu_physical_memory_set_dirty(rbadr); \
+ cpu_physical_memory_set_dirty(rbadr+count); \
+ src += count; size -= count; \
+ rmd.rmd2.mcnt = count; rmd.rmd1.own = 0; \
+ RMDSTORE(&rmd, PHYSADDR(s,crda)); \
+ pktcount++; \
+} while (0)
+
+ PCNET_RECV_STORE();
+ if ((size > 0) && CSR_NRDA(s)) {
+ target_phys_addr_t nrda = CSR_NRDA(s);
+ RMDLOAD(&rmd, PHYSADDR(s,nrda));
+ if (rmd.rmd1.own) {
+ crda = nrda;
+ PCNET_RECV_STORE();
+ if ((size > 0) && (nrda=CSR_NNRD(s))) {
+ RMDLOAD(&rmd, PHYSADDR(s,nrda));
+ if (rmd.rmd1.own) {
+ crda = nrda;
+ PCNET_RECV_STORE();
+ }
+ }
+ }
+ }
+
+#undef PCNET_RECV_STORE
+
+ RMDLOAD(&rmd, PHYSADDR(s,crda));
+ if (size == 0) {
+ rmd.rmd1.enp = 1;
+ rmd.rmd1.pam = !CSR_PROM(s) && is_padr;
+ rmd.rmd1.lafm = !CSR_PROM(s) && is_ladr;
+ rmd.rmd1.bam = !CSR_PROM(s) && is_bcast;
+ } else {
+ rmd.rmd1.oflo = 1;
+ rmd.rmd1.buff = 1;
+ rmd.rmd1.err = 1;
+ }
+ RMDSTORE(&rmd, PHYSADDR(s,crda));
+ s->csr[0] |= 0x0400;
+
+#ifdef PCNET_DEBUG
+ printf("RCVRC=%d CRDA=0x%08x BLKS=%d\n",
+ CSR_RCVRC(s), PHYSADDR(s,CSR_CRDA(s)), pktcount);
+#endif
+#ifdef PCNET_DEBUG_RMD
+ PRINT_RMD(&rmd);
+#endif
+
+ while (pktcount--) {
+ if (CSR_RCVRC(s) <= 1)
+ CSR_RCVRC(s) = CSR_RCVRL(s);
+ else
+ CSR_RCVRC(s)--;
+ }
+
+ pcnet_rdte_poll(s);
+
+ }
+ }
+
+ pcnet_poll(s);
+ pcnet_update_irq(s);
+}
+
+static void pcnet_transmit(PCNetState *s)
+{
+ target_phys_addr_t xmit_cxda = 0;
+ int count = CSR_XMTRL(s)-1;
+ s->xmit_pos = -1;
+
+ if (!CSR_TXON(s)) {
+ s->csr[0] &= ~0x0008;
+ return;
+ }
+
+ txagain:
+ if (pcnet_tdte_poll(s)) {
+ struct pcnet_TMD tmd;
+
+ TMDLOAD(&tmd, PHYSADDR(s,CSR_CXDA(s)));
+
+#ifdef PCNET_DEBUG_TMD
+ printf(" TMDLOAD 0x%08x\n", PHYSADDR(s,CSR_CXDA(s)));
+ PRINT_TMD(&tmd);
+#endif
+ if (tmd.tmd1.stp) {
+ s->xmit_pos = 0;
+ if (!tmd.tmd1.enp) {
+ cpu_physical_memory_read(PHYSADDR(s, tmd.tmd0.tbadr),
+ s->buffer, 4096 - tmd.tmd1.bcnt);
+ s->xmit_pos += 4096 - tmd.tmd1.bcnt;
+ }
+ xmit_cxda = PHYSADDR(s,CSR_CXDA(s));
+ }
+ if (tmd.tmd1.enp && (s->xmit_pos >= 0)) {
+ cpu_physical_memory_read(PHYSADDR(s, tmd.tmd0.tbadr),
+ s->buffer + s->xmit_pos, 4096 - tmd.tmd1.bcnt);
+ s->xmit_pos += 4096 - tmd.tmd1.bcnt;
+#ifdef PCNET_DEBUG
+ printf("pcnet_transmit size=%d\n", s->xmit_pos);
+#endif
+ if (CSR_LOOP(s))
+ pcnet_receive(s, s->buffer, s->xmit_pos);
+ else
+ qemu_send_packet(s->nd, s->buffer, s->xmit_pos);
+
+ s->csr[0] &= ~0x0008; /* clear TDMD */
+ s->csr[4] |= 0x0004; /* set TXSTRT */
+ s->xmit_pos = -1;
+ }
+
+ tmd.tmd1.own = 0;
+ TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s)));
+ if (!CSR_TOKINTD(s) || (CSR_LTINTEN(s) && tmd.tmd1.ltint))
+ s->csr[0] |= 0x0200; /* set TINT */
+
+ if (CSR_XMTRC(s)<=1)
+ CSR_XMTRC(s) = CSR_XMTRL(s);
+ else
+ CSR_XMTRC(s)--;
+ if (count--)
+ goto txagain;
+
+ } else
+ if (s->xmit_pos >= 0) {
+ struct pcnet_TMD tmd;
+ TMDLOAD(&tmd, PHYSADDR(s,xmit_cxda));
+ tmd.tmd2.buff = tmd.tmd2.uflo = tmd.tmd1.err = 1;
+ tmd.tmd1.own = 0;
+ TMDSTORE(&tmd, PHYSADDR(s,xmit_cxda));
+ s->csr[0] |= 0x0200; /* set TINT */
+ if (!CSR_DXSUFLO(s)) {
+ s->csr[0] &= ~0x0010;
+ } else
+ if (count--)
+ goto txagain;
+ }
+}
+
+static void pcnet_poll(PCNetState *s)
+{
+ if (CSR_RXON(s)) {
+ pcnet_rdte_poll(s);
+ }
+
+ if (CSR_TDMD(s) ||
+ (CSR_TXON(s) && !CSR_DPOLL(s) && pcnet_tdte_poll(s)))
+ pcnet_transmit(s);
+}
+
+static void pcnet_poll_timer(void *opaque)
+{
+ PCNetState *s = opaque;
+
+ qemu_del_timer(s->poll_timer);
+
+ if (CSR_TDMD(s)) {
+ pcnet_transmit(s);
+ }
+
+ pcnet_update_irq(s);
+
+ if (!CSR_STOP(s) && !CSR_SPND(s) && !CSR_DPOLL(s)) {
+ uint64_t now = qemu_get_clock(vm_clock) * 33;
+ if (!s->timer || !now)
+ s->timer = now;
+ else {
+ uint64_t t = now - s->timer + CSR_POLL(s);
+ if (t > 0xffffLL) {
+ pcnet_poll(s);
+ CSR_POLL(s) = CSR_PINT(s);
+ } else
+ CSR_POLL(s) = t;
+ }
+ qemu_mod_timer(s->poll_timer,
+ pcnet_get_next_poll_time(s,qemu_get_clock(vm_clock)));
+ }
+}
+
+
+static void pcnet_csr_writew(PCNetState *s, uint32_t rap, uint32_t new_value)
+{
+ uint16_t val = new_value;
+#ifdef PCNET_DEBUG_CSR
+ printf("pcnet_csr_writew rap=%d val=0x%04x\n", rap, val);
+#endif
+ switch (rap) {
+ case 0:
+ s->csr[0] &= ~(val & 0x7f00); /* Clear any interrupt flags */
+
+ s->csr[0] = (s->csr[0] & ~0x0040) | (val & 0x0048);
+
+ val = (val & 0x007f) | (s->csr[0] & 0x7f00);
+
+ /* IFF STOP, STRT and INIT are set, clear STRT and INIT */
+ if ((val&7) == 7)
+ val &= ~3;
+
+ if (!CSR_STOP(s) && (val & 4))
+ pcnet_stop(s);
+
+ if (!CSR_INIT(s) && (val & 1))
+ pcnet_init(s);
+
+ if (!CSR_STRT(s) && (val & 2))
+ pcnet_start(s);
+
+ if (CSR_TDMD(s))
+ pcnet_transmit(s);
+
+ return;
+ case 1:
+ case 2:
+ case 8:
+ case 9:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ case 18: /* CRBAL */
+ case 19: /* CRBAU */
+ case 20: /* CXBAL */
+ case 21: /* CXBAU */
+ case 22: /* NRBAU */
+ case 23: /* NRBAU */
+ case 24:
+ case 25:
+ case 26:
+ case 27:
+ case 28:
+ case 29:
+ case 30:
+ case 31:
+ case 32:
+ case 33:
+ case 34:
+ case 35:
+ case 36:
+ case 37:
+ case 38:
+ case 39:
+ case 40: /* CRBC */
+ case 41:
+ case 42: /* CXBC */
+ case 43:
+ case 44:
+ case 45:
+ case 46: /* POLL */
+ case 47: /* POLLINT */
+ case 72:
+ case 74:
+ case 76: /* RCVRL */
+ case 78: /* XMTRL */
+ case 112:
+ if (CSR_STOP(s) || CSR_SPND(s))
+ break;
+ return;
+ case 3:
+ break;
+ case 4:
+ s->csr[4] &= ~(val & 0x026a);
+ val &= ~0x026a; val |= s->csr[4] & 0x026a;
+ break;
+ case 5:
+ s->csr[5] &= ~(val & 0x0a90);
+ val &= ~0x0a90; val |= s->csr[5] & 0x0a90;
+ break;
+ case 16:
+ pcnet_csr_writew(s,1,val);
+ return;
+ case 17:
+ pcnet_csr_writew(s,2,val);
+ return;
+ case 58:
+ pcnet_bcr_writew(s,BCR_SWS,val);
+ break;
+ default:
+ return;
+ }
+ s->csr[rap] = val;
+}
+
+static uint32_t pcnet_csr_readw(PCNetState *s, uint32_t rap)
+{
+ uint32_t val;
+ switch (rap) {
+ case 0:
+ pcnet_update_irq(s);
+ val = s->csr[0];
+ val |= (val & 0x7800) ? 0x8000 : 0;
+ break;
+ case 16:
+ return pcnet_csr_readw(s,1);
+ case 17:
+ return pcnet_csr_readw(s,2);
+ case 58:
+ return pcnet_bcr_readw(s,BCR_SWS);
+ case 88:
+ val = s->csr[89];
+ val <<= 16;
+ val |= s->csr[88];
+ break;
+ default:
+ val = s->csr[rap];
+ }
+#ifdef PCNET_DEBUG_CSR
+ printf("pcnet_csr_readw rap=%d val=0x%04x\n", rap, val);
+#endif
+ return val;
+}
+
+static void pcnet_bcr_writew(PCNetState *s, uint32_t rap, uint32_t val)
+{
+ rap &= 127;
+#ifdef PCNET_DEBUG_BCR
+ printf("pcnet_bcr_writew rap=%d val=0x%04x\n", rap, val);
+#endif
+ switch (rap) {
+ case BCR_SWS:
+ if (!(CSR_STOP(s) || CSR_SPND(s)))
+ return;
+ val &= ~0x0300;
+ switch (val & 0x00ff) {
+ case 0:
+ val |= 0x0200;
+ break;
+ case 1:
+ val |= 0x0100;
+ break;
+ case 2:
+ case 3:
+ val |= 0x0300;
+ break;
+ default:
+ printf("Bad SWSTYLE=0x%02x\n", val & 0xff);
+ val = 0x0200;
+ break;
+ }
+#ifdef PCNET_DEBUG
+ printf("BCR_SWS=0x%04x\n", val);
+#endif
+ case BCR_LNKST:
+ case BCR_LED1:
+ case BCR_LED2:
+ case BCR_LED3:
+ case BCR_MC:
+ case BCR_FDC:
+ case BCR_BSBC:
+ case BCR_EECAS:
+ case BCR_PLAT:
+ s->bcr[rap] = val;
+ break;
+ default:
+ break;
+ }
+}
+
+static uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap)
+{
+ uint32_t val;
+ rap &= 127;
+ switch (rap) {
+ case BCR_LNKST:
+ case BCR_LED1:
+ case BCR_LED2:
+ case BCR_LED3:
+ val = s->bcr[rap] & ~0x8000;
+ val |= (val & 0x017f & s->lnkst) ? 0x8000 : 0;
+ break;
+ default:
+ val = rap < 32 ? s->bcr[rap] : 0;
+ break;
+ }
+#ifdef PCNET_DEBUG_BCR
+ printf("pcnet_bcr_readw rap=%d val=0x%04x\n", rap, val);
+#endif
+ return val;
+}
+
+static void pcnet_h_reset(PCNetState *s)
+{
+ int i;
+ uint16_t checksum;
+
+ /* Initialize the PROM */
+
+ memcpy(s->prom, s->nd->macaddr, 6);
+ s->prom[12] = s->prom[13] = 0x00;
+ s->prom[14] = s->prom[15] = 0x57;
+
+ for (i = 0,checksum = 0; i < 16; i++)
+ checksum += s->prom[i];
+ *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
+
+
+ s->bcr[BCR_MSRDA] = 0x0005;
+ s->bcr[BCR_MSWRA] = 0x0005;
+ s->bcr[BCR_MC ] = 0x0002;
+ s->bcr[BCR_LNKST] = 0x00c0;
+ s->bcr[BCR_LED1 ] = 0x0084;
+ s->bcr[BCR_LED2 ] = 0x0088;
+ s->bcr[BCR_LED3 ] = 0x0090;
+ s->bcr[BCR_FDC ] = 0x0000;
+ s->bcr[BCR_BSBC ] = 0x9001;
+ s->bcr[BCR_EECAS] = 0x0002;
+ s->bcr[BCR_SWS ] = 0x0200;
+ s->bcr[BCR_PLAT ] = 0xff06;
+
+ pcnet_s_reset(s);
+}
+
+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) & 0x80)
+ 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_writew(void *opaque, uint32_t addr, uint32_t val)
+{
+ PCNetState *s = opaque;
+ pcnet_poll_timer(s);
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_writew addr=0x%08x val=0x%04x\n", addr, val);
+#endif
+ if (!BCR_DWIO(s)) {
+ switch (addr & 0x0f) {
+ case 0x00: /* RDP */
+ pcnet_csr_writew(s, s->rap, val);
+ break;
+ case 0x02:
+ s->rap = val & 0x7f;
+ break;
+ case 0x06:
+ pcnet_bcr_writew(s, s->rap, val);
+ break;
+ }
+ }
+ pcnet_update_irq(s);
+}
+
+static uint32_t pcnet_ioport_readw(void *opaque, uint32_t addr)
+{
+ PCNetState *s = opaque;
+ uint32_t val = -1;
+ pcnet_poll_timer(s);
+ if (!BCR_DWIO(s)) {
+ switch (addr & 0x0f) {
+ case 0x00: /* RDP */
+ val = pcnet_csr_readw(s, s->rap);
+ break;
+ case 0x02:
+ val = s->rap;
+ break;
+ case 0x04:
+ pcnet_s_reset(s);
+ val = 0;
+ break;
+ case 0x06:
+ val = pcnet_bcr_readw(s, s->rap);
+ break;
+ }
+ }
+ pcnet_update_irq(s);
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_readw addr=0x%08x val=0x%04x\n", addr, val & 0xffff);
+#endif
+ return val;
+}
+
+static void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
+{
+ PCNetState *s = opaque;
+ pcnet_poll_timer(s);
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_writel addr=0x%08x val=0x%08x\n", addr, val);
+#endif
+ if (BCR_DWIO(s)) {
+ switch (addr & 0x0f) {
+ case 0x00: /* RDP */
+ pcnet_csr_writew(s, s->rap, val & 0xffff);
+ break;
+ case 0x04:
+ s->rap = val & 0x7f;
+ break;
+ case 0x0c:
+ pcnet_bcr_writew(s, s->rap, val & 0xffff);
+ break;
+ }
+ } else
+ if ((addr & 0x0f) == 0) {
+ /* switch device to dword i/o mode */
+ pcnet_bcr_writew(s, BCR_BSBC, pcnet_bcr_readw(s, BCR_BSBC) | 0x0080);
+#ifdef PCNET_DEBUG_IO
+ printf("device switched into dword i/o mode\n");
+#endif
+ }
+ pcnet_update_irq(s);
+}
+
+static uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr)
+{
+ PCNetState *s = opaque;
+ uint32_t val = -1;
+ pcnet_poll_timer(s);
+ if (BCR_DWIO(s)) {
+ switch (addr & 0x0f) {
+ case 0x00: /* RDP */
+ val = pcnet_csr_readw(s, s->rap);
+ break;
+ case 0x04:
+ val = s->rap;
+ break;
+ case 0x08:
+ pcnet_s_reset(s);
+ val = 0;
+ break;
+ case 0x0c:
+ val = pcnet_bcr_readw(s, s->rap);
+ break;
+ }
+ }
+ pcnet_update_irq(s);
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_readl addr=0x%08x val=0x%08x\n", addr, val);
+#endif
+ return val;
+}
+
+static void pcnet_ioport_map(PCIDevice *pci_dev, int region_num,
+ uint32_t addr, uint32_t size, int type)
+{
+ PCNetState *d = (PCNetState *)pci_dev;
+
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_map addr=0x%04x size=0x%04x\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%08x 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%08x 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%08x 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%08x 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%08x 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%08x val=0x%08x\n", addr, val);
+#endif
+ return val;
+}
+
+
+static CPUWriteMemoryFunc *pcnet_mmio_write[] = {
+ (CPUWriteMemoryFunc *)&pcnet_mmio_writeb,
+ (CPUWriteMemoryFunc *)&pcnet_mmio_writew,
+ (CPUWriteMemoryFunc *)&pcnet_mmio_writel
+};
+
+static CPUReadMemoryFunc *pcnet_mmio_read[] = {
+ (CPUReadMemoryFunc *)&pcnet_mmio_readb,
+ (CPUReadMemoryFunc *)&pcnet_mmio_readw,
+ (CPUReadMemoryFunc *)&pcnet_mmio_readl
+};
+
+static void pcnet_mmio_map(PCIDevice *pci_dev, int region_num,
+ uint32_t addr, uint32_t size, int type)
+{
+ PCNetState *d = (PCNetState *)pci_dev;
+
+#ifdef PCNET_DEBUG_IO
+ printf("pcnet_ioport_map addr=0x%08x 0x%08x\n", addr, size);
+#endif
+
+ cpu_register_physical_memory(addr, PCNET_PNPMMIO_SIZE, d->mmio_io_addr);
+}
+
+void pci_pcnet_init(PCIBus *bus, NetDriverState *nd)
+{
+ PCNetState *d;
+ uint8_t *pci_conf;
+
+#if 0
+ printf("sizeof(RMD)=%d, sizeof(TMD)=%d\n",
+ sizeof(struct pcnet_RMD), sizeof(struct pcnet_TMD));
+#endif
+
+ d = (PCNetState *)pci_register_device(bus, "PCNet", sizeof(PCNetState),
+ -1, NULL, NULL);
+
+ pci_conf = d->dev.config;
+
+ *(uint16_t *)&pci_conf[0x00] = cpu_to_le16(0x1022);
+ *(uint16_t *)&pci_conf[0x02] = cpu_to_le16(0x2000);
+ *(uint16_t *)&pci_conf[0x04] = cpu_to_le16(0x0007);
+ *(uint16_t *)&pci_conf[0x06] = cpu_to_le16(0x0280);
+ pci_conf[0x08] = 0x10;
+ pci_conf[0x09] = 0x00;
+ pci_conf[0x0a] = 0x00; // ethernet network controller
+ pci_conf[0x0b] = 0x02;
+ pci_conf[0x0e] = 0x00; // header_type
+
+ *(uint32_t *)&pci_conf[0x10] = cpu_to_le32(0x00000001);
+ *(uint32_t *)&pci_conf[0x14] = cpu_to_le32(0x00000000);
+
+ pci_conf[0x3d] = 1; // interrupt pin 0
+ pci_conf[0x3e] = 0x06;
+ pci_conf[0x3f] = 0xff;
+
+ /* Handler for memory-mapped I/O */
+ d->mmio_io_addr =
+ cpu_register_io_memory(0, pcnet_mmio_read, pcnet_mmio_write, d);
+
+ pci_register_io_region((PCIDevice *)d, 0, PCNET_IOPORT_SIZE,
+ PCI_ADDRESS_SPACE_IO, pcnet_ioport_map);
+
+ pci_register_io_region((PCIDevice *)d, 1, PCNET_PNPMMIO_SIZE,
+ PCI_ADDRESS_SPACE_MEM, pcnet_mmio_map);
+
+ d->poll_timer = qemu_new_timer(vm_clock, pcnet_poll_timer, d);
+
+ d->nd = nd;
+
+ pcnet_h_reset(d);
+
+ qemu_add_read_packet(nd, pcnet_can_receive, pcnet_receive, d);
+}
diff -r 1ae656509f02 -r dc93023f4221 tools/ioemu/hw/pcnet.h
--- /dev/null Tue Aug 16 18:09:07 2005
+++ b/tools/ioemu/hw/pcnet.h Tue Aug 16 21:39:55 2005
@@ -0,0 +1,583 @@
+/*
+ * 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
+ */
+
+#ifdef __GNUC__
+#define PACKED(A) A __attribute__ ((packed))
+#else
+#error FixMe
+#endif
+
+/* BUS CONFIGURATION REGISTERS */
+#define BCR_MSRDA 0
+#define BCR_MSWRA 1
+#define BCR_MC 2
+#define BCR_LNKST 4
+#define BCR_LED1 5
+#define BCR_LED2 6
+#define BCR_LED3 7
+#define BCR_FDC 9
+#define BCR_BSBC 18
+#define BCR_EECAS 19
+#define BCR_SWS 20
+#define BCR_PLAT 22
+
+#define BCR_DWIO(S) !!((S)->bcr[BCR_BSBC] & 0x0080)
+#define BCR_SSIZE32(S) !!((S)->bcr[BCR_SWS ] & 0x0100)
+#define BCR_SWSTYLE(S) ((S)->bcr[BCR_SWS ] & 0x00FF)
+
+#define CSR_INIT(S) !!(((S)->csr[0])&0x0001)
+#define CSR_STRT(S) !!(((S)->csr[0])&0x0002)
+#define CSR_STOP(S) !!(((S)->csr[0])&0x0004)
+#define CSR_TDMD(S) !!(((S)->csr[0])&0x0008)
+#define CSR_TXON(S) !!(((S)->csr[0])&0x0010)
+#define CSR_RXON(S) !!(((S)->csr[0])&0x0020)
+#define CSR_INEA(S) !!(((S)->csr[0])&0x0040)
+#define CSR_LAPPEN(S) !!(((S)->csr[3])&0x0020)
+#define CSR_DXSUFLO(S) !!(((S)->csr[3])&0x0040)
+#define CSR_ASTRP_RCV(S) !!(((S)->csr[4])&0x0800)
+#define CSR_DPOLL(S) !!(((S)->csr[4])&0x1000)
+#define CSR_SPND(S) !!(((S)->csr[5])&0x0001)
+#define CSR_LTINTEN(S) !!(((S)->csr[5])&0x4000)
+#define CSR_TOKINTD(S) !!(((S)->csr[5])&0x8000)
+#define CSR_DRX(S) !!(((S)->csr[15])&0x0001)
+#define CSR_DTX(S) !!(((S)->csr[15])&0x0002)
+#define CSR_LOOP(S) !!(((S)->csr[15])&0x0004)
+#define CSR_DRCVPA(S) !!(((S)->csr[15])&0x2000)
+#define CSR_DRCVBC(S) !!(((S)->csr[15])&0x4000)
+#define CSR_PROM(S) !!(((S)->csr[15])&0x8000)
+
+#define CSR_CRBC(S) ((S)->csr[40])
+#define CSR_CRST(S) ((S)->csr[41])
+#define CSR_CXBC(S) ((S)->csr[42])
+#define CSR_CXST(S) ((S)->csr[43])
+#define CSR_NRBC(S) ((S)->csr[44])
+#define CSR_NRST(S) ((S)->csr[45])
+#define CSR_POLL(S) ((S)->csr[46])
+#define CSR_PINT(S) ((S)->csr[47])
+#define CSR_RCVRC(S) ((S)->csr[72])
+#define CSR_XMTRC(S) ((S)->csr[74])
+#define CSR_RCVRL(S) ((S)->csr[76])
+#define CSR_XMTRL(S) ((S)->csr[78])
+#define CSR_MISSC(S) ((S)->csr[112])
+
+#define CSR_IADR(S) ((S)->csr[ 1] | ((S)->csr[ 2] << 16))
+#define CSR_CRBA(S) ((S)->csr[18] | ((S)->csr[19] << 16))
+#define CSR_CXBA(S) ((S)->csr[20] | ((S)->csr[21] << 16))
+#define CSR_NRBA(S) ((S)->csr[22] | ((S)->csr[23] << 16))
+#define CSR_BADR(S) ((S)->csr[24] | ((S)->csr[25] << 16))
+#define CSR_NRDA(S) ((S)->csr[26] | ((S)->csr[27] << 16))
+#define CSR_CRDA(S) ((S)->csr[28] | ((S)->csr[29] << 16))
+#define CSR_BADX(S) ((S)->csr[30] | ((S)->csr[31] << 16))
+#define CSR_NXDA(S) ((S)->csr[32] | ((S)->csr[33] << 16))
+#define CSR_CXDA(S) ((S)->csr[34] | ((S)->csr[35] << 16))
+#define CSR_NNRD(S) ((S)->csr[36] | ((S)->csr[37] << 16))
+#define CSR_NNXD(S) ((S)->csr[38] | ((S)->csr[39] << 16))
+#define CSR_PXDA(S) ((S)->csr[60] | ((S)->csr[61] << 16))
+#define CSR_NXBA(S) ((S)->csr[64] | ((S)->csr[65] << 16))
+
+#define PHYSADDR(S,A) \
+ (BCR_SSIZE32(S) ? (A) : (A) | ((0xff00 & (uint32_t)(s)->csr[2])<<16))
+
+struct pcnet_initblk16 {
+ uint16_t mode;
+ uint16_t padr1;
+ uint16_t padr2;
+ uint16_t padr3;
+ uint16_t ladrf1;
+ uint16_t ladrf2;
+ uint16_t ladrf3;
+ uint16_t ladrf4;
+ unsigned PACKED(rdra:24);
+ unsigned PACKED(res1:5);
+ unsigned PACKED(rlen:3);
+ unsigned PACKED(tdra:24);
+ unsigned PACKED(res2:5);
+ unsigned PACKED(tlen:3);
+};
+
+struct pcnet_initblk32 {
+ uint16_t mode;
+ unsigned PACKED(res1:4);
+ unsigned PACKED(rlen:4);
+ unsigned PACKED(res2:4);
+ unsigned PACKED(tlen:4);
+ uint16_t padr1;
+ uint16_t padr2;
+ uint16_t padr3;
+ uint16_t _res;
+ uint16_t ladrf1;
+ uint16_t ladrf2;
+ uint16_t ladrf3;
+ uint16_t ladrf4;
+ uint32_t rdra;
+ uint32_t tdra;
+};
+
+struct pcnet_TMD {
+ struct {
+ unsigned tbadr:32;
+ } tmd0;
+ struct {
+ unsigned PACKED(bcnt:12), PACKED(ones:4), PACKED(res:7), PACKED(bpe:1);
+ unsigned PACKED(enp:1), PACKED(stp:1), PACKED(def:1), PACKED(one:1);
+ unsigned PACKED(ltint:1), PACKED(nofcs:1), PACKED(err:1),
PACKED(own:1);
+ } tmd1;
+ struct {
+ unsigned PACKED(trc:4), PACKED(res:12);
+ unsigned PACKED(tdr:10), PACKED(rtry:1), PACKED(lcar:1);
+ unsigned PACKED(lcol:1), PACKED(exdef:1), PACKED(uflo:1),
PACKED(buff:1);
+ } tmd2;
+ struct {
+ unsigned res:32;
+ } tmd3;
+};
+
+struct pcnet_RMD {
+ struct {
+ unsigned rbadr:32;
+ } rmd0;
+ struct {
+ unsigned PACKED(bcnt:12), PACKED(ones:4), PACKED(res:4);
+ unsigned PACKED(bam:1), PACKED(lafm:1), PACKED(pam:1), PACKED(bpe:1);
+ unsigned PACKED(enp:1), PACKED(stp:1), PACKED(buff:1), PACKED(crc:1);
+ unsigned PACKED(oflo:1), PACKED(fram:1), PACKED(err:1), PACKED(own:1);
+ } rmd1;
+ struct {
+ unsigned PACKED(mcnt:12), PACKED(zeros:4);
+ unsigned PACKED(rpc:8), PACKED(rcc:8);
+ } rmd2;
+ struct {
+ unsigned res:32;
+ } rmd3;
+};
+
+
+#define PRINT_TMD(T) printf( \
+ "TMD0 : TBADR=0x%08x\n" \
+ "TMD1 : OWN=%d, ERR=%d, FCS=%d, LTI=%d, " \
+ "ONE=%d, DEF=%d, STP=%d, ENP=%d,\n" \
+ " BPE=%d, BCNT=%d\n" \
+ "TMD2 : BUF=%d, UFL=%d, EXD=%d, LCO=%d, " \
+ "LCA=%d, RTR=%d,\n" \
+ " TDR=%d, TRC=%d\n", \
+ (T)->tmd0.tbadr, \
+ (T)->tmd1.own, (T)->tmd1.err, (T)->tmd1.nofcs, \
+ (T)->tmd1.ltint, (T)->tmd1.one, (T)->tmd1.def, \
+ (T)->tmd1.stp, (T)->tmd1.enp, (T)->tmd1.bpe, \
+ 4096-(T)->tmd1.bcnt, \
+ (T)->tmd2.buff, (T)->tmd2.uflo, (T)->tmd2.exdef,\
+ (T)->tmd2.lcol, (T)->tmd2.lcar, (T)->tmd2.rtry, \
+ (T)->tmd2.tdr, (T)->tmd2.trc)
+
+#define PRINT_RMD(R) printf( \
+ "RMD0 : RBADR=0x%08x\n" \
+ "RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, " \
+ "CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n " \
+ "BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \
+ "RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n", \
+ (R)->rmd0.rbadr, \
+ (R)->rmd1.own, (R)->rmd1.err, (R)->rmd1.fram, \
+ (R)->rmd1.oflo, (R)->rmd1.crc, (R)->rmd1.buff, \
+ (R)->rmd1.stp, (R)->rmd1.enp, (R)->rmd1.bpe, \
+ (R)->rmd1.pam, (R)->rmd1.lafm, (R)->rmd1.bam, \
+ (R)->rmd1.ones, 4096-(R)->rmd1.bcnt, \
+ (R)->rmd2.rcc, (R)->rmd2.rpc, (R)->rmd2.mcnt, \
+ (R)->rmd2.zeros)
+
+static inline void pcnet_tmd_load(PCNetState *s, struct pcnet_TMD *tmd,
target_phys_addr_t addr)
+{
+ if (!BCR_SWSTYLE(s)) {
+ uint16_t xda[4];
+ cpu_physical_memory_read(addr,
+ (void *)&xda[0], sizeof(xda));
+ ((uint32_t *)tmd)[0] = (xda[0]&0xffff) |
+ ((xda[1]&0x00ff) << 16);
+ ((uint32_t *)tmd)[1] = (xda[2]&0xffff)|
+ ((xda[1] & 0xff00) << 16);
+ ((uint32_t *)tmd)[2] =
+ (xda[3] & 0xffff) << 16;
+ ((uint32_t *)tmd)[3] = 0;
+ }
+ else
+ if (BCR_SWSTYLE(s) != 3)
+ cpu_physical_memory_read(addr, (void *)tmd, 16);
+ else {
+ uint32_t xda[4];
+ cpu_physical_memory_read(addr,
+ (void *)&xda[0], sizeof(xda));
+ ((uint32_t *)tmd)[0] = xda[2];
+ ((uint32_t *)tmd)[1] = xda[1];
+ ((uint32_t *)tmd)[2] = xda[0];
+ ((uint32_t *)tmd)[3] = xda[3];
+ }
+}
+
+static inline void pcnet_tmd_store(PCNetState *s, struct pcnet_TMD *tmd,
target_phys_addr_t addr)
+{
+ cpu_physical_memory_set_dirty(addr);
+ if (!BCR_SWSTYLE(s)) {
+ uint16_t xda[4];
+ xda[0] = ((uint32_t *)tmd)[0] & 0xffff;
+ xda[1] = ((((uint32_t *)tmd)[0]>>16)&0x00ff) |
+ ((((uint32_t *)tmd)[1]>>16)&0xff00);
+ xda[2] = ((uint32_t *)tmd)[1] & 0xffff;
+ xda[3] = ((uint32_t *)tmd)[2] >> 16;
+ cpu_physical_memory_write(addr,
+ (void *)&xda[0], sizeof(xda));
+ cpu_physical_memory_set_dirty(addr+7);
+ }
+ else {
+ if (BCR_SWSTYLE(s) != 3)
+ cpu_physical_memory_write(addr, (void *)tmd, 16);
+ else {
+ uint32_t xda[4];
+ xda[0] = ((uint32_t *)tmd)[2];
+ xda[1] = ((uint32_t *)tmd)[1];
+ xda[2] = ((uint32_t *)tmd)[0];
+ xda[3] = ((uint32_t *)tmd)[3];
+ cpu_physical_memory_write(addr,
+ (void *)&xda[0], sizeof(xda));
+ }
+ cpu_physical_memory_set_dirty(addr+15);
+ }
+}
+
+static inline void pcnet_rmd_load(PCNetState *s, struct pcnet_RMD *rmd,
target_phys_addr_t addr)
+{
+ if (!BCR_SWSTYLE(s)) {
+ uint16_t rda[4];
+ cpu_physical_memory_read(addr,
+ (void *)&rda[0], sizeof(rda));
+ ((uint32_t *)rmd)[0] = (rda[0]&0xffff)|
+ ((rda[1] & 0x00ff) << 16);
+ ((uint32_t *)rmd)[1] = (rda[2]&0xffff)|
+ ((rda[1] & 0xff00) << 16);
+ ((uint32_t *)rmd)[2] = rda[3] & 0xffff;
+ ((uint32_t *)rmd)[3] = 0;
+ }
+ else
+ if (BCR_SWSTYLE(s) != 3)
+ cpu_physical_memory_read(addr, (void *)rmd, 16);
+ else {
+ uint32_t rda[4];
+ cpu_physical_memory_read(addr,
+ (void *)&rda[0], sizeof(rda));
+ ((uint32_t *)rmd)[0] = rda[2];
+ ((uint32_t *)rmd)[1] = rda[1];
+ ((uint32_t *)rmd)[2] = rda[0];
+ ((uint32_t *)rmd)[3] = rda[3];
+ }
+}
+
+static inline void pcnet_rmd_store(PCNetState *s, struct pcnet_RMD *rmd,
target_phys_addr_t addr)
+{
+ cpu_physical_memory_set_dirty(addr);
+ if (!BCR_SWSTYLE(s)) {
+ uint16_t rda[4]; \
+ rda[0] = ((uint32_t *)rmd)[0] & 0xffff; \
+ rda[1] = ((((uint32_t *)rmd)[0]>>16)&0xff)|\
+ ((((uint32_t *)rmd)[1]>>16)&0xff00);\
+ rda[2] = ((uint32_t *)rmd)[1] & 0xffff; \
+ rda[3] = ((uint32_t *)rmd)[2] & 0xffff; \
+ cpu_physical_memory_write(addr, \
+ (void *)&rda[0], sizeof(rda)); \
+ cpu_physical_memory_set_dirty(addr+7);
+ }
+ else {
+ if (BCR_SWSTYLE(s) != 3)
+ cpu_physical_memory_write(addr, (void *)rmd, 16);
+ else {
+ uint32_t rda[4];
+ rda[0] = ((uint32_t *)rmd)[2];
+ rda[1] = ((uint32_t *)rmd)[1];
+ rda[2] = ((uint32_t *)rmd)[0];
+ rda[3] = ((uint32_t *)rmd)[3];
+ cpu_physical_memory_write(addr,
+ (void *)&rda[0], sizeof(rda));
+ }
+ cpu_physical_memory_set_dirty(addr+15);
+ }
+}
+
+
+#define TMDLOAD(TMD,ADDR) pcnet_tmd_load(s,TMD,ADDR)
+
+#define TMDSTORE(TMD,ADDR) pcnet_tmd_store(s,TMD,ADDR)
+
+#define RMDLOAD(RMD,ADDR) pcnet_rmd_load(s,RMD,ADDR)
+
+#define RMDSTORE(RMD,ADDR) pcnet_rmd_store(s,RMD,ADDR)
+
+#if 1
+
+#define CHECK_RMD(ADDR,RES) do { \
+ struct pcnet_RMD rmd; \
+ RMDLOAD(&rmd,(ADDR)); \
+ (RES) |= (rmd.rmd1.ones != 15) \
+ || (rmd.rmd2.zeros != 0); \
+} while (0)
+
+#define CHECK_TMD(ADDR,RES) do { \
+ struct pcnet_TMD tmd; \
+ TMDLOAD(&tmd,(ADDR)); \
+ (RES) |= (tmd.tmd1.ones != 15); \
+} while (0)
+
+#else
+
+#define CHECK_RMD(ADDR,RES) do { \
+ switch (BCR_SWSTYLE(s)) { \
+ case 0x00: \
+ do { \
+ uint16_t rda[4]; \
+ cpu_physical_memory_read((ADDR), \
+ (void *)&rda[0], sizeof(rda)); \
+ (RES) |= (rda[2] & 0xf000)!=0xf000; \
+ (RES) |= (rda[3] & 0xf000)!=0x0000; \
+ } while (0); \
+ break; \
+ case 0x01: \
+ case 0x02: \
+ do { \
+ uint32_t rda[4]; \
+ cpu_physical_memory_read((ADDR), \
+ (void *)&rda[0], sizeof(rda)); \
+ (RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \
+ (RES) |= (rda[2] & 0x0000f000L)!=0x00000000L; \
+ } while (0); \
+ break; \
+ case 0x03: \
+ do { \
+ uint32_t rda[4]; \
+ cpu_physical_memory_read((ADDR), \
+ (void *)&rda[0], sizeof(rda)); \
+ (RES) |= (rda[0] & 0x0000f000L)!=0x00000000L; \
+ (RES) |= (rda[1] & 0x0000f000L)!=0x0000f000L; \
+ } while (0); \
+ break; \
+ } \
+} while (0)
+
+#define CHECK_TMD(ADDR,RES) do { \
+ switch (BCR_SWSTYLE(s)) { \
+ case 0x00: \
+ do { \
+ uint16_t xda[4]; \
+ cpu_physical_memory_read((ADDR), \
+ (void *)&xda[0], sizeof(xda)); \
+ (RES) |= (xda[2] & 0xf000)!=0xf000;\
+ } while (0); \
+ break; \
+ case 0x01: \
+ case 0x02: \
+ case 0x03: \
+ do { \
+ uint32_t xda[4]; \
+ cpu_physical_memory_read((ADDR), \
+ (void *)&xda[0], sizeof(xda)); \
+ (RES) |= (xda[1] & 0x0000f000L)!=0x0000f000L; \
+ } while (0); \
+ break; \
+ } \
+} while (0)
+
+#endif
+
+#define PRINT_PKTHDR(BUF) do { \
+ struct ether_header *hdr = (void *)(BUF); \
+ printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, " \
+ "shost=%02x:%02x:%02x:%02x:%02x:%02x, " \
+ "type=0x%04x (bcast=%d)\n", \
+ hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \
+ hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \
+ hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \
+ hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \
+ htons(hdr->ether_type), \
+ !!ETHER_IS_MULTICAST(hdr->ether_dhost)); \
+} while (0)
+
+#define MULTICAST_FILTER_LEN 8
+
+static inline uint32_t lnc_mchash(const uint8_t *ether_addr)
+{
+#define LNC_POLYNOMIAL 0xEDB88320UL
+ uint32_t crc = 0xFFFFFFFF;
+ int idx, bit;
+ uint8_t data;
+
+ for (idx = 0; idx < ETHER_ADDR_LEN; idx++) {
+ for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++)
{
+ crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0);
+ data >>= 1;
+ }
+ }
+ return crc;
+#undef LNC_POLYNOMIAL
+}
+
+#define MIN(X,Y) ((X>Y) ? (Y) : (X))
+
+#define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff])
+
+/* generated using the AUTODIN II polynomial
+ * x^32 + x^26 + x^23 + x^22 + x^16 +
+ * x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
+ */
+static const uint32_t crctab[256] = {
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
+ 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
+ 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
+ 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+ 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
+ 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
+ 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+ 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
+ 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
+ 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
+ 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
+ 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
+ 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
+ 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+ 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
+ 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
+ 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+ 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
+ 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
+ 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
+ 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
+ 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
+ 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
+ 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+ 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
+ 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
+ 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+ 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
+ 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
+ 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
+ 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
+ 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
+ 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
+ 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+ 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
+ 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
+ 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+ 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
+ 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
+ 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
+ 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
+ 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
+ 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
+};
+
+static inline int padr_match(PCNetState *s, const uint8_t *buf, int size)
+{
+ struct ether_header *hdr = (void *)buf;
+ uint8_t padr[6] = {
+ s->csr[12] & 0xff, s->csr[12] >> 8,
+ s->csr[13] & 0xff, s->csr[13] >> 8,
+ s->csr[14] & 0xff, s->csr[14] >> 8
+ };
+ int result = (!CSR_DRCVPA(s)) && !bcmp(hdr->ether_dhost, padr, 6);
+#ifdef PCNET_DEBUG_MATCH
+ printf("packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, "
+ "padr=%02x:%02x:%02x:%02x:%02x:%02x\n",
+ hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2],
+ hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5],
+ padr[0],padr[1],padr[2],padr[3],padr[4],padr[5]);
+ printf("padr_match result=%d\n", result);
+#endif
+ return result;
+}
+
+static inline int padr_bcast(PCNetState *s, const uint8_t *buf, int size)
+{
+ static uint8_t BCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ struct ether_header *hdr = (void *)buf;
+ int result = !CSR_DRCVBC(s) && !bcmp(hdr->ether_dhost, BCAST, 6);
+#ifdef PCNET_DEBUG_MATCH
+ printf("padr_bcast result=%d\n", result);
+#endif
+ return result;
+}
+
+static inline int ladr_match(PCNetState *s, const uint8_t *buf, int size)
+{
+ struct ether_header *hdr = (void *)buf;
+ if ((*(hdr->ether_dhost)&0x01) &&
+ ((uint64_t *)&s->csr[8])[0] != 0LL) {
+ uint8_t ladr[8] = {
+ s->csr[8] & 0xff, s->csr[8] >> 8,
+ s->csr[9] & 0xff, s->csr[9] >> 8,
+ s->csr[10] & 0xff, s->csr[10] >> 8,
+ s->csr[11] & 0xff, s->csr[11] >> 8
+ };
+ int index = lnc_mchash(hdr->ether_dhost) >> 26;
+ return !!(ladr[index >> 3] & (1 << (index & 7)));
+ }
+ return 0;
+}
+
+static inline target_phys_addr_t pcnet_rdra_addr(PCNetState *s, int idx)
+{
+ while (idx < 1) idx += CSR_RCVRL(s);
+ return s->rdra + ((CSR_RCVRL(s) - idx) * (BCR_SWSTYLE(s) ? 16 : 8));
+}
+
+static inline int64_t pcnet_get_next_poll_time(PCNetState *s, int64_t
current_time)
+{
+ int64_t next_time = current_time +
+ muldiv64(65536 - (CSR_SPND(s) ? 0 : CSR_POLL(s)),
+ ticks_per_sec, 33000000L);
+ if (next_time <= current_time)
+ next_time = current_time + 1;
+ return next_time;
+}
+
+
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