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Calculate an offset of mailbox_in correctly by renaming BHA_MBO_OFFSET

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to BHA_MBX_OFFSET and using it also for mailbox_in.  Since all mailboxes
should be placed in a single continuous memory due to a hardware limitation,
an offset of any mailbox can be/should be calculated using a same expression.
This commit is contained in:
enami 2000-04-19 02:39:12 +00:00
parent 19a31e7b5e
commit debe6e88b6
1 changed files with 10 additions and 5 deletions
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15
sys/dev/ic/bhavar.h
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@ -1,4 +1,4 @@
/* $NetBSD: bhavar.h,v 1.17 2000/03/27 17:00:50 kleink Exp $ */
/* $NetBSD: bhavar.h,v 1.18 2000/04/19 02:39:12 enami Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@ -69,19 +69,24 @@ do { \
BHA_CCB_OFFSET(ccb), sizeof(struct bha_ccb), (ops)); \
} while (0)
#define BHA_MBI_OFFSET(sc, mbi) ((u_long)(mbi) - (u_long)(sc)->sc_mbi)
#define BHA_MBO_OFFSET(sc, mbo) ((u_long)(mbo) - (u_long)(sc)->sc_mbo)
/*
* Offset in the DMA mapping for mailboxes.
* Since all mailboxes are allocated on a single DMA'able memory
* due to the hardware limitation, an offset of any mailboxes can be
* calculated using same expression.
*/
#define BHA_MBX_OFFSET(sc, mbx) ((u_long)(mbx) - (u_long)(sc)->sc_mbo)
#define BHA_MBI_SYNC(sc, mbi, ops) \
do { \
bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap_mbox, \
BHA_MBI_OFFSET((sc), (mbi)), sizeof(struct bha_mbx_in), (ops)); \
BHA_MBX_OFFSET((sc), (mbi)), sizeof(struct bha_mbx_in), (ops)); \
} while (0)
#define BHA_MBO_SYNC(sc, mbo, ops) \
do { \
bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap_mbox, \
BHA_MBO_OFFSET((sc), (mbo)), sizeof(struct bha_mbx_out), (ops)); \
BHA_MBX_OFFSET((sc), (mbo)), sizeof(struct bha_mbx_out), (ops)); \
} while (0)
struct bha_softc {