i8257: fix Terminal Count status
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>
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@ -342,6 +342,10 @@ static void i8257_channel_run(I8257State *d, int ichan)
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r->now[COUNT], (r->base[COUNT] + 1) << ncont);
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r->now[COUNT] = n;
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ldebug ("dma_pos %d size %d\n", n, (r->base[COUNT] + 1) << ncont);
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if (n == (r->base[COUNT] + 1) << ncont) {
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ldebug("transfer done\n");
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d->status |= (1 << ichan);
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}
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}
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static void i8257_dma_run(void *opaque)
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