diff options
Diffstat (limited to 'hw/scsi')
| -rw-r--r-- | hw/scsi/esp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 14c6d05253..65b4baab83 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -640,6 +640,7 @@ static void esp_do_dma(ESPState *s) uint32_t len, cmdlen; int to_device = ((s->rregs[ESP_RSTAT] & 7) == STAT_DO); uint8_t buf[ESP_CMDFIFO_SZ]; + int n; len = esp_get_tc(s); if (s->do_cmd) { @@ -710,6 +711,14 @@ static void esp_do_dma(ESPState *s) esp_dma_ti_check(s); } else { + /* Copy FIFO data to device */ + len = MIN(s->async_len, ESP_FIFO_SZ); + len = MIN(len, fifo8_num_used(&s->fifo)); + n = esp_fifo_pop_buf(&s->fifo, s->async_buf, len); + s->async_buf += n; + s->async_len -= n; + s->ti_size += n; + esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); |