static uint64_t pcnet_ioport_read(void *opaque, hwaddr addr,
unsigned size)
{
PCNetState *d = opaque;
if (addr < 0x10) {
if (!BCR_DWIO(d) && size == 1) {
return pcnet_aprom_readb(d, addr);
} else if (!BCR_DWIO(d) && (addr & 1) == 0 && size == 2) {
return pcnet_aprom_readb(d, addr) |
(pcnet_aprom_readb(d, addr + 1) << 8);
} else if (BCR_DWIO(d) && (addr & 3) == 0 && size == 4) {
return pcnet_aprom_readb(d, addr) |
(pcnet_aprom_readb(d, addr + 1) << 8) |
(pcnet_aprom_readb(d, addr + 2) << 16) |
(pcnet_aprom_readb(d, addr + 3) << 24);
}
} else {
if (size == 2) {
return pcnet_ioport_readw(d, addr);
} else if (size == 4) {
return pcnet_ioport_readl(d, addr);
}
}
return ((uint64_t)1 << (size * 8)) - 1;
}
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 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 uint64_t pcnet_ioport_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
PCNetState *d = opaque;
if (addr < 16 && size == 1) {
return pcnet_aprom_readb(d, addr);
} else if (addr >= 0x10 && addr < 0x20 && size == 2) {
return pcnet_ioport_readw(d, addr);
} else if (addr >= 0x10 && addr < 0x20 && size == 4) {
return pcnet_ioport_readl(d, addr);
}
return ((uint64_t)1 << (size * 8)) - 1;
}
