When a DMA transfer is done (ie all bytes have been transfered), the corresponding
Terminal Count bit must be set in the status register.
This bit is already cleared in i8257_read_cont and i8257_write_cont when required.
This fixes (at least) floppy transfer in IBM 40p firmware, which checks in DMA
controller if everything went fine.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <
1456404332-31556-1-git-send-email-hpoussin@reactos.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
r->now[COUNT], (r->base[COUNT] + 1) << ncont);
r->now[COUNT] = n;
ldebug ("dma_pos %d size %d\n", n, (r->base[COUNT] + 1) << ncont);
+ if (n == (r->base[COUNT] + 1) << ncont) {
+ ldebug("transfer done\n");
+ d->status |= (1 << ichan);
+ }
}
static void i8257_dma_run(void *opaque)