diff options
Diffstat (limited to 'src/devices/machine/am79c90.cpp')
-rw-r--r-- | src/devices/machine/am79c90.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/devices/machine/am79c90.cpp b/src/devices/machine/am79c90.cpp index 9a014674c93..5ca3515ffc1 100644 --- a/src/devices/machine/am79c90.cpp +++ b/src/devices/machine/am79c90.cpp @@ -286,6 +286,8 @@ void am7990_device_base::recv_complete_cb(int result) // update the final descriptor u32 const ring_address = (m_rx_ring_base + (m_rx_ring_pos << 3)) & RING_ADDR_MASK; + LOGMASKED(LOG_RXTX, "receive complete rmd1 0x%04x rmd3 %d\n", m_rx_md[1], result & RMD3_MCNT); + m_dma_out_cb(ring_address | 2, m_rx_md[1]); m_dma_out_cb(ring_address | 6, result & RMD3_MCNT); @@ -387,7 +389,7 @@ void am7990_device_base::transmit() } // minimum length 100 when chaining, or 64 when not, except in loopback mode - if (!length && !(m_mode & MODE_LOOP) && tx_buf_length < ((m_tx_md[1] & TMD1_ENP) ? 64 : 100)) + if (!length && !(m_mode & MODE_LOOP) && tx_buf_length < ((m_tx_md[1] & TMD1_ENP) ? (append_fcs ? 60 : 64) : 100)) logerror("first transmit buffer length %d less than required minimum\n", tx_buf_length); // read the data from memory @@ -496,15 +498,19 @@ void am7990_device_base::send_complete_cb(int result) case -1: // forced collision m_tx_md[1] |= TMD1_ERR; - m_dma_out_cb(ring_address | 6, m_tx_md[3] | TMD3_RTRY); + m_tx_md[3] |= TMD3_RTRY; + m_dma_out_cb(ring_address | 6, m_tx_md[3]); break; case 0: // failure to transmit (assume loss of carrier) m_tx_md[1] |= TMD1_ERR; - m_dma_out_cb(ring_address | 6, m_tx_md[3] | TMD3_LCAR); + m_tx_md[3] |= TMD3_LCAR; + m_dma_out_cb(ring_address | 6, m_tx_md[3]); break; } + LOGMASKED(LOG_RXTX, "transmit complete tmd1 0x%04x tmd3 0x%04x\n", m_tx_md[1], m_tx_md[3]); + // update the last descriptor m_dma_out_cb(ring_address | 2, m_tx_md[1]); @@ -556,7 +562,7 @@ WRITE16_MEMBER(am7990_device_base::regs_w) // STOP takes priority over all other bits if (data & CSR0_STOP) { - if ((type() == AM7990) || !(m_csr[0] & CSR0_STOP)) + if (!(m_csr[0] & CSR0_STOP)) device_reset(); break; } |