From be878ede582870a70532890b85fbd43e6f242e8d Mon Sep 17 00:00:00 2001
From: TC1995 <mariogplayer90@gmail.com>
Date: Mon, 13 Jan 2025 00:56:04 +0100
Subject: [PATCH] Okay, maybe for the 53c400 only so.

Based on my tests, the former 5380 commit will apply to the 53c400 only, for now...
---
 src/scsi/scsi_ncr5380.c | 4 ++--
 src/scsi/scsi_t128.c    | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/scsi/scsi_ncr5380.c b/src/scsi/scsi_ncr5380.c
index 092cc08e9..0c3af9282 100644
--- a/src/scsi/scsi_ncr5380.c
+++ b/src/scsi/scsi_ncr5380.c
@@ -197,7 +197,7 @@ ncr5380_bus_read(ncr_t *ncr)
             phase = (ncr->cur_bus & SCSI_PHASE_MESSAGE_IN);
 
             if (phase == SCSI_PHASE_DATA_IN) {
-                if (ncr->dma_mode == DMA_IDLE) {
+                if ((ncr->dma_mode == DMA_IDLE) || ncr->dma_initiator_receive_ext) {
                     ncr5380_log("Phase Data In.\n");
                     if ((dev->sc != NULL) && (dev->sc->temp_buffer != NULL))
                         ncr->tx_data = dev->sc->temp_buffer[ncr->data_pos++];
@@ -210,7 +210,7 @@ ncr5380_bus_read(ncr_t *ncr)
                     ncr->state = STATE_IDLE;
                     ncr->cur_bus &= ~BUS_BSY;
                 } else {
-                    if (ncr->dma_mode == DMA_IDLE)
+                    if ((ncr->dma_mode == DMA_IDLE) || ncr->dma_send_ext)
                         ncr->state = STATE_DATAOUT;
                 }
             } else if (phase == SCSI_PHASE_STATUS) {
diff --git a/src/scsi/scsi_t128.c b/src/scsi/scsi_t128.c
index faad87052..c878bbb91 100644
--- a/src/scsi/scsi_t128.c
+++ b/src/scsi/scsi_t128.c
@@ -287,7 +287,6 @@ write_again:
                 t128->block_count = (t128->block_count - 1) & 0xff;
                 t128_log("T128 Remaining blocks to be written=%d\n", t128->block_count);
                 if (!t128->block_count) {
-                    ncr->dma_mode = DMA_IDLE;
                     t128->block_loaded = 0;
                     t128_log("IO End of write transfer\n");
                     ncr->tcr |= TCR_LAST_BYTE_SENT;
@@ -344,7 +343,6 @@ read_again:
                 t128_log("T128 Remaining blocks to be read=%d, status=%02x, len=%i, cdb[0] = %02x\n", t128->block_count, t128->status, dev->buffer_length, ncr->command[0]);
                 if (!t128->block_count) {
                     t128->block_loaded = 0;
-                    ncr->dma_mode = DMA_IDLE;
                     t128_log("IO End of read transfer\n");
                     ncr->isr |= STATUS_END_OF_DMA;
                     timer_stop(&t128->timer);