diff options
Diffstat (limited to 'hw/pcnet-pci.c')
| -rw-r--r-- | hw/pcnet-pci.c | 48 |
1 files changed, 36 insertions, 12 deletions
diff --git a/hw/pcnet-pci.c b/hw/pcnet-pci.c index 4f97f965f4..ea5dfdef76 100644 --- a/hw/pcnet-pci.c +++ b/hw/pcnet-pci.c @@ -76,12 +76,24 @@ static uint64_t pcnet_ioport_read(void *opaque, target_phys_addr_t addr, { 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); + 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; } @@ -91,12 +103,24 @@ static void pcnet_ioport_write(void *opaque, target_phys_addr_t addr, { PCNetState *d = opaque; - if (addr < 16 && size == 1) { - return pcnet_aprom_writeb(d, addr, data); - } else if (addr >= 0x10 && addr < 0x20 && size == 2) { - return pcnet_ioport_writew(d, addr, data); - } else if (addr >= 0x10 && addr < 0x20 && size == 4) { - return pcnet_ioport_writel(d, addr, data); + if (addr < 0x10) { + if (!BCR_DWIO(d) && size == 1) { + pcnet_aprom_writeb(d, addr, data); + } else if (!BCR_DWIO(d) && (addr & 1) == 0 && size == 2) { + pcnet_aprom_writeb(d, addr, data & 0xff); + pcnet_aprom_writeb(d, addr + 1, data >> 8); + } else if (BCR_DWIO(d) && (addr & 3) == 0 && size == 4) { + pcnet_aprom_writeb(d, addr, data & 0xff); + pcnet_aprom_writeb(d, addr + 1, (data >> 8) & 0xff); + pcnet_aprom_writeb(d, addr + 2, (data >> 16) & 0xff); + pcnet_aprom_writeb(d, addr + 3, data >> 24); + } + } else { + if (size == 2) { + pcnet_ioport_writew(d, addr, data); + } else if (size == 4) { + pcnet_ioport_writel(d, addr, data); + } } } |