From 4ad75998f8e8513d723cda95e7534620ddb04a7d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= Date: Thu, 25 Feb 2016 13:45:32 +0100 Subject: i8257: fix Terminal Count status MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Message-Id: <1456404332-31556-1-git-send-email-hpoussin@reactos.org> Reviewed-by: John Snow Signed-off-by: Paolo Bonzini --- hw/dma/i8257.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/dma/i8257.c b/hw/dma/i8257.c index 5a52707..6078893 100644 --- a/hw/dma/i8257.c +++ b/hw/dma/i8257.c @@ -342,6 +342,10 @@ static void i8257_channel_run(I8257State *d, int ichan) 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) -- cgit v1.1