diff options
| -rw-r--r-- | hw/misc/macio/mac_dbdma.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/misc/macio/mac_dbdma.c b/hw/misc/macio/mac_dbdma.c index c5dd0ac16b..ef5b0a51ca 100644 --- a/hw/misc/macio/mac_dbdma.c +++ b/hw/misc/macio/mac_dbdma.c @@ -783,8 +783,18 @@ static void dbdma_unassigned_rw(DBDMA_io *io) static void dbdma_unassigned_flush(DBDMA_io *io) { DBDMA_channel *ch = io->channel; + dbdma_cmd *current = &ch->current; + uint16_t cmd; qemu_log_mask(LOG_GUEST_ERROR, "%s: use of unassigned channel %d\n", __func__, ch->channel); + + cmd = le16_to_cpu(current->command) & COMMAND_MASK; + if (cmd == OUTPUT_MORE || cmd == OUTPUT_LAST || + cmd == INPUT_MORE || cmd == INPUT_LAST) { + current->xfer_status = cpu_to_le16(ch->regs[DBDMA_STATUS] | FLUSH); + current->res_count = cpu_to_le16(io->len); + dbdma_cmdptr_save(ch); + } } void* DBDMA_init (MemoryRegion **dbdma_mem) |