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ide: Factor ide_dma_set_inactive out 

Several places that stop a DMA transfer duplicate this code. Factor it out into
a common function.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Kevin Wolf 2010-11-26 16:31:37 +01:00
parent 11a3cb8159
commit 8337606d35
1 changed files with 13 additions and 16 deletions
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29
hw/ide/core.c
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@ -473,6 +473,14 @@ static void dma_buf_commit(IDEState *s, int is_write)
qemu_sglist_destroy(&s->sg);
}
static void ide_dma_set_inactive(BMDMAState *bm)
{
bm->status &= ~BM_STATUS_DMAING;
bm->dma_cb = NULL;
bm->unit = -1;
bm->aiocb = NULL;
}
void ide_dma_error(IDEState *s)
{
ide_transfer_stop(s);
@ -587,11 +595,8 @@ static void ide_read_dma_cb(void *opaque, int ret)
s->status = READY_STAT | SEEK_STAT;
ide_set_irq(s->bus);
eot:
bm->status &= ~BM_STATUS_DMAING;
bm->status |= BM_STATUS_INT;
bm->dma_cb = NULL;
bm->unit = -1;
bm->aiocb = NULL;
ide_dma_set_inactive(bm);
return;
}
@ -733,11 +738,8 @@ static void ide_write_dma_cb(void *opaque, int ret)
s->status = READY_STAT | SEEK_STAT;
ide_set_irq(s->bus);
eot:
bm->status &= ~BM_STATUS_DMAING;
bm->status |= BM_STATUS_INT;
bm->dma_cb = NULL;
bm->unit = -1;
bm->aiocb = NULL;
ide_dma_set_inactive(bm);
return;
}
@ -1061,11 +1063,8 @@ static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret)
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
ide_set_irq(s->bus);
eot:
bm->status &= ~BM_STATUS_DMAING;
bm->status |= BM_STATUS_INT;
bm->dma_cb = NULL;
bm->unit = -1;
bm->aiocb = NULL;
ide_dma_set_inactive(bm);
return;
}
@ -2954,12 +2953,10 @@ void ide_dma_cancel(BMDMAState *bm)
printf("aio_cancel\n");
#endif
bdrv_aio_cancel(bm->aiocb);
bm->aiocb = NULL;
}
bm->status &= ~BM_STATUS_DMAING;
/* cancel DMA request */
bm->unit = -1;
bm->dma_cb = NULL;
ide_dma_set_inactive(bm);
}
}