bdbca4ddae
- Like lsi64854_scsi_intr() return -1 in case there was a DMA error so
the caller can distinguish it from a normal interrupt and leave the
reset of the DMA engine to the caller so we don't kill any state there.
- Move the static 'dodrain' flag to struct lsi64854_softc as there can
be more than one LSI64854 used for a LANCE in a system and reset it
again once draining the E-cache is done so we don't keep draining the
cache with every interrupt.
- Remove calling sc->sc_intrchain(), we will call lsi64854_enet_intr()
via sc->intr() in the interrupt handler of the LANCE driver and not
use it in chained mode.
o lsi64854_pp_intr():
- Like lsi64854_scsi_intr() return -1 in case there was a DMA error so
the caller can distinguish it from a normal interrupt.
o Remove the no longer used sc_intrchain* from struct lsi64854_softc.
o Make lsi64854_reset(), lsi64854_setup*() and lsi64854_*_intr() static
to lsi64854.c as we do and will only call them via the respective
function pointers in struct lsi64854_softc.
o While here fix style(9) bugs (variable definition inside a nested scope).
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* $NetBSD: lsi64854var.h,v 1.6 2005/02/04 02:10:36 perry Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $FreeBSD$ */
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struct lsi64854_softc {
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device_t sc_dev;
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int sc_rid;
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struct resource *sc_res;
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bus_space_handle_t sc_regh;
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bus_space_tag_t sc_regt;
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u_int sc_rev; /* revision */
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int sc_burst; /* max suported burst size */
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int sc_channel;
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#define L64854_CHANNEL_SCSI 1
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#define L64854_CHANNEL_ENET 2
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#define L64854_CHANNEL_PP 3
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void *sc_client;
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int sc_active; /* DMA active ? */
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bus_dmamap_t sc_dmamap; /* DMA map for bus_dma_* */
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bus_dma_tag_t sc_parent_dmat;
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bus_dma_tag_t sc_buffer_dmat;
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int sc_datain;
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size_t sc_dmasize;
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caddr_t *sc_dmaaddr;
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size_t *sc_dmalen;
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void (*reset)(struct lsi64854_softc *);/* reset routine */
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int (*setup)(struct lsi64854_softc *, caddr_t *, size_t *,
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int, size_t *); /* DMA setup */
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int (*intr)(void *); /* interrupt handler */
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u_int sc_dmactl;
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int sc_dodrain;
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};
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#define L64854_GCSR(sc) \
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(bus_space_read_4((sc)->sc_regt, (sc)->sc_regh, L64854_REG_CSR))
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#define L64854_SCSR(sc, csr) \
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bus_space_write_4((sc)->sc_regt, (sc)->sc_regh, L64854_REG_CSR, csr)
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/*
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* DMA engine interface functions.
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*/
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#define DMA_RESET(sc) (((sc)->reset)(sc))
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#define DMA_INTR(sc) (((sc)->intr)(sc))
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#define DMA_SETUP(sc, a, l, d, s) (((sc)->setup)(sc, a, l, d, s))
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#define DMA_ISACTIVE(sc) ((sc)->sc_active)
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#define DMA_ENINTR(sc) do { \
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uint32_t csr = L64854_GCSR(sc); \
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csr |= L64854_INT_EN; \
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L64854_SCSR(sc, csr); \
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} while (0)
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#define DMA_ISINTR(sc) (L64854_GCSR(sc) & (D_INT_PEND|D_ERR_PEND))
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#define DMA_GO(sc) do { \
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uint32_t csr = L64854_GCSR(sc); \
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csr |= D_EN_DMA; \
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L64854_SCSR(sc, csr); \
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sc->sc_active = 1; \
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} while (0)
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int lsi64854_attach(struct lsi64854_softc *);
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int lsi64854_detach(struct lsi64854_softc *);
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