/*
* QEMU NE2000 emulation
- *
+ *
* Copyright (c) 2003-2004 Fabrice Bellard
- *
+ *
* 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
static int ne2000_can_receive(void *opaque)
{
NE2000State *s = opaque;
-
+
if (s->cmd & E8390_STOP)
return 1;
return !ne2000_buffer_full(s);
{
NE2000State *s = opaque;
uint8_t *p;
- int total_len, next, avail, len, index, mcast_idx;
+ unsigned int total_len, next, avail, len, index, mcast_idx;
uint8_t buf1[60];
- static const uint8_t broadcast_macaddr[6] =
+ static const uint8_t broadcast_macaddr[6] =
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-
+
#if defined(DEBUG_NE2000)
printf("NE2000: received len=%d\n", size);
#endif
if (s->cmd & E8390_STOP || ne2000_buffer_full(s))
return;
-
+
/* XXX: check this */
if (s->rxcr & 0x10) {
/* promiscuous: receive all */
if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))))
return;
} else if (s->mem[0] == buf[0] &&
- s->mem[2] == buf[1] &&
- s->mem[4] == buf[2] &&
- s->mem[6] == buf[3] &&
- s->mem[8] == buf[4] &&
+ s->mem[2] == buf[1] &&
+ s->mem[4] == buf[2] &&
+ s->mem[6] == buf[3] &&
+ s->mem[8] == buf[4] &&
s->mem[10] == buf[5]) {
/* match */
} else {
/* write packet data */
while (size > 0) {
- avail = s->stop - index;
+ if (index <= s->stop)
+ avail = s->stop - index;
+ else
+ avail = 0;
len = size;
if (len > avail)
len = avail;
s->cmd = val;
if (!(val & E8390_STOP)) { /* START bit makes no sense on RTL8029... */
s->isr &= ~ENISR_RESET;
- /* test specific case: zero length transfert */
+ /* test specific case: zero length transfer */
if ((val & (E8390_RREAD | E8390_RWRITE)) &&
s->rcnt == 0) {
s->isr |= ENISR_RDC;
}
if (val & E8390_TRANS) {
index = (s->tpsr << 8);
- /* XXX: next 2 lines are a hack to make netware 3.11 work */
+ /* XXX: next 2 lines are a hack to make netware 3.11 work */
if (index >= NE2000_PMEM_END)
index -= NE2000_PMEM_SIZE;
/* fail safe: check range on the transmitted length */
if (index + s->tcnt <= NE2000_PMEM_END) {
qemu_send_packet(s->vc, s->mem + index, s->tcnt);
}
- /* signal end of transfert */
+ /* signal end of transfer */
s->tsr = ENTSR_PTX;
s->isr |= ENISR_TX;
- s->cmd &= ~E8390_TRANS;
+ s->cmd &= ~E8390_TRANS;
ne2000_update_irq(s);
}
}
return ret;
}
-static inline void ne2000_mem_writeb(NE2000State *s, uint32_t addr,
+static inline void ne2000_mem_writeb(NE2000State *s, uint32_t addr,
uint32_t val)
{
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
s->mem[addr] = val;
}
}
-static inline void ne2000_mem_writew(NE2000State *s, uint32_t addr,
+static inline void ne2000_mem_writew(NE2000State *s, uint32_t addr,
uint32_t val)
{
addr &= ~1; /* XXX: check exact behaviour if not even */
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
*(uint16_t *)(s->mem + addr) = cpu_to_le16(val);
}
}
-static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr,
+static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr,
uint32_t val)
{
addr &= ~1; /* XXX: check exact behaviour if not even */
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
cpu_to_le32wu((uint32_t *)(s->mem + addr), val);
}
static inline uint32_t ne2000_mem_readb(NE2000State *s, uint32_t addr)
{
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
return s->mem[addr];
} else {
static inline uint32_t ne2000_mem_readw(NE2000State *s, uint32_t addr)
{
addr &= ~1; /* XXX: check exact behaviour if not even */
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
return le16_to_cpu(*(uint16_t *)(s->mem + addr));
} else {
static inline uint32_t ne2000_mem_readl(NE2000State *s, uint32_t addr)
{
addr &= ~1; /* XXX: check exact behaviour if not even */
- if (addr < 32 ||
+ if (addr < 32 ||
(addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
return le32_to_cpupu((uint32_t *)(s->mem + addr));
} else {
if (s->rcnt <= len) {
s->rcnt = 0;
- /* signal end of transfert */
+ /* signal end of transfer */
s->isr |= ENISR_RDC;
ne2000_update_irq(s);
} else {
void isa_ne2000_init(int base, qemu_irq irq, NICInfo *nd)
{
NE2000State *s;
-
+
s = qemu_mallocz(sizeof(NE2000State));
if (!s)
return;
-
+
register_ioport_write(base, 16, 1, ne2000_ioport_write, s);
register_ioport_read(base, 16, 1, ne2000_ioport_read, s);
s->macaddr[3],
s->macaddr[4],
s->macaddr[5]);
-
+
register_savevm("ne2000", 0, 2, ne2000_save, ne2000_load, s);
}
NE2000State ne2000;
} PCINE2000State;
-static void ne2000_map(PCIDevice *pci_dev, int region_num,
+static void ne2000_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type)
{
PCINE2000State *d = (PCINE2000State *)pci_dev;
PCINE2000State *d;
NE2000State *s;
uint8_t *pci_conf;
-
+
d = (PCINE2000State *)pci_register_device(bus,
"NE2000", sizeof(PCINE2000State),
- devfn,
+ devfn,
NULL, NULL);
pci_conf = d->dev.config;
pci_conf[0x00] = 0xec; // Realtek 8029
pci_conf[0x01] = 0x10;
pci_conf[0x02] = 0x29;
pci_conf[0x03] = 0x80;
- pci_conf[0x0a] = 0x00; // ethernet network controller
+ pci_conf[0x0a] = 0x00; // ethernet network controller
pci_conf[0x0b] = 0x02;
pci_conf[0x0e] = 0x00; // header_type
pci_conf[0x3d] = 1; // interrupt pin 0
-
- pci_register_io_region(&d->dev, 0, 0x100,
+
+ pci_register_io_region(&d->dev, 0, 0x100,
PCI_ADDRESS_SPACE_IO, ne2000_map);
s = &d->ne2000;
s->irq = d->dev.irq[0];
s->macaddr[3],
s->macaddr[4],
s->macaddr[5]);
-
+
/* XXX: instance number ? */
register_savevm("ne2000", 0, 3, ne2000_save, ne2000_load, s);
}
projects / qemu.git / blobdiff