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if an IRQ was not detected, unless the force flag was given. Use this to detect if the IRQ was for us (closer to shared IRQ for controllers which don't have their own IRQ handler in pciide.c) and to poll for DMA xfer. Also makes the timeout recovery code simpler. - ATAPI cleanup: don't call controller-specific functions from atapiconf.c (wdc_*), so that it's possible to attach an atapibus to something else than a wdc/pciide (Hi Lennart :). Overload struct scsi_adapter with struct atapi_adapter, defined as struct scsi_adapter + atapi-specific callbacks. scsipi_link still points to an scsi_adapter, atapi code casts it to atapi_adapter if needed. Move atapi_softc to atapiconf.h so that it can be used by the underlying controller code (e.g. atapi_wdc.c). Add an atapi-specific callback *atapi_probedev(), which probe a drive in a controller-specific way, allocate the sc_link and fills in the ataparams if needed. It then calls atapi_probedev() (from atapiconf.c) to do the generic initialisations and attach the device. - While I'm there merge and centralise the state definitions in atavar.h. It should now be possible to use a common ata/atapi routine to set the drive's modes (will do later).
82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/* $NetBSD: pciidevar.h,v 1.4 2000/04/01 14:32:24 bouyer Exp $ */
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/*
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* Copyright (c) 1998 Christopher G. Demetriou. All rights reserved.
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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 Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PCI IDE driver exported software structures.
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*
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* Author: Christopher G. Demetriou, March 2, 1998.
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*/
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#include <dev/ata/atavar.h>
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#include <dev/ic/wdcreg.h>
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#include <dev/ic/wdcvar.h>
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struct device;
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struct pciide_softc {
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struct wdc_softc sc_wdcdev; /* common wdc definitions */
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pci_chipset_tag_t sc_pc; /* PCI registers info */
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pcitag_t sc_tag;
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void *sc_pci_ih; /* PCI interrupt handle */
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int sc_dma_ok; /* bus-master DMA info */
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bus_space_tag_t sc_dma_iot;
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bus_space_handle_t sc_dma_ioh;
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bus_dma_tag_t sc_dmat;
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/* Chip description */
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const struct pciide_product_desc *sc_pp;
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/* common definitions */
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struct channel_softc *wdc_chanarray[PCIIDE_NUM_CHANNELS];
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/* internal bookkeeping */
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struct pciide_channel { /* per-channel data */
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struct channel_softc wdc_channel; /* generic part */
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char *name;
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int hw_ok; /* hardware mapped & OK? */
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int compat; /* is it compat? */
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void *ih; /* compat or pci handle */
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/* DMA tables and DMA map for xfer, for each drive */
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struct pciide_dma_maps {
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bus_dmamap_t dmamap_table;
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struct idedma_table *dma_table;
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bus_dmamap_t dmamap_xfer;
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int dma_flags;
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} dma_maps[2];
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} pciide_channels[PCIIDE_NUM_CHANNELS];
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};
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/*
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* Functions defined by machine-dependent code.
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*/
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/* Attach compat interrupt handler, returning handle or NULL if failed. */
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void *pciide_machdep_compat_intr_establish __P((struct device *,
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struct pci_attach_args *, int, int (*)(void *), void *));
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