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authorKevin Wolf <kwolf@redhat.com>2010-11-26 16:31:37 +0100
committerKevin Wolf <kwolf@redhat.com>2010-11-29 16:15:01 +0100
commit8337606d3588f80aea656db74127423bd6b61443 (patch)
tree6e833d965a1af1d524229f4375a649298e7764ae /hw
parent11a3cb8159278f7452b5bec8b9e17292a3ef53c3 (diff)
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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>
Diffstat (limited to 'hw')
-rw-r--r--hw/ide/core.c29
1 files changed, 13 insertions, 16 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 484e0ca..7136ade 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -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);
}
}