diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/rtl8139.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/hw/rtl8139.c b/hw/rtl8139.c index ccbde27fc2..1d5f78bbee 100644 --- a/hw/rtl8139.c +++ b/hw/rtl8139.c @@ -2495,11 +2495,30 @@ static void rtl8139_TxStatus_write(RTL8139State *s, uint32_t txRegOffset, uint32 rtl8139_transmit(s); } -static uint32_t rtl8139_TxStatus_read(RTL8139State *s, uint32_t txRegOffset) +static uint32_t rtl8139_TxStatus_read(RTL8139State *s, uint8_t addr, int size) { - uint32_t ret = s->TxStatus[txRegOffset/4]; + uint32_t reg = (addr - TxStatus0) / 4; + uint32_t offset = addr & 0x3; + uint32_t ret = 0; + + if (addr & (size - 1)) { + DPRINTF("not implemented read for TxStatus addr=0x%x size=0x%x\n", addr, + size); + return ret; + } - DPRINTF("TxStatus read offset=0x%x val=0x%08x\n", txRegOffset, ret); + switch (size) { + case 1: /* fall through */ + case 2: /* fall through */ + case 4: + ret = (s->TxStatus[reg] >> offset * 8) & ((1 << (size * 8)) - 1); + DPRINTF("TxStatus[%d] read addr=0x%x size=0x%x val=0x%08x\n", reg, addr, + size, ret); + break; + default: + DPRINTF("unsupported size 0x%x of TxStatus reading\n", size); + break; + } return ret; } @@ -2970,6 +2989,9 @@ static uint32_t rtl8139_io_readb(void *opaque, uint8_t addr) case MAR0 ... MAR0+7: ret = s->mult[addr - MAR0]; break; + case TxStatus0 ... TxStatus0+4*4-1: + ret = rtl8139_TxStatus_read(s, addr, 1); + break; case ChipCmd: ret = rtl8139_ChipCmd_read(s); break; @@ -3033,6 +3055,9 @@ static uint32_t rtl8139_io_readw(void *opaque, uint8_t addr) switch (addr) { + case TxAddr0 ... TxAddr0+4*4-1: + ret = rtl8139_TxStatus_read(s, addr, 2); + break; case IntrMask: ret = rtl8139_IntrMask_read(s); break; @@ -3123,7 +3148,7 @@ static uint32_t rtl8139_io_readl(void *opaque, uint8_t addr) break; case TxStatus0 ... TxStatus0+4*4-1: - ret = rtl8139_TxStatus_read(s, addr-TxStatus0); + ret = rtl8139_TxStatus_read(s, addr, 4); break; case TxAddr0 ... TxAddr0+4*4-1: |