diff options
| -rw-r--r-- | hw/mac_dbdma.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/hw/mac_dbdma.c b/hw/mac_dbdma.c index 8ec3d99314..8f94c35ac3 100644 --- a/hw/mac_dbdma.c +++ b/hw/mac_dbdma.c @@ -402,7 +402,9 @@ static void start_output(DBDMA_channel *ch, int key, uint32_t addr, ch->io.dma_end = dbdma_end; ch->io.is_dma_out = 1; ch->processing = 1; - ch->rw(&ch->io); + if (ch->rw) { + ch->rw(&ch->io); + } } static void start_input(DBDMA_channel *ch, int key, uint32_t addr, @@ -425,7 +427,9 @@ static void start_input(DBDMA_channel *ch, int key, uint32_t addr, ch->io.dma_end = dbdma_end; ch->io.is_dma_out = 0; ch->processing = 1; - ch->rw(&ch->io); + if (ch->rw) { + ch->rw(&ch->io); + } } static void load_word(DBDMA_channel *ch, int key, uint32_t addr, @@ -688,7 +692,7 @@ dbdma_control_write(DBDMA_channel *ch) if (status & ACTIVE) qemu_bh_schedule(dbdma_bh); - if (status & FLUSH) + if ((status & FLUSH) && ch->flush) ch->flush(&ch->io); } |