47351d2774
was needed to make attach/detach of devices work, which is needed for the PCCARD support. (PCCARD support is still not working though, more to come on that) Support the CMD646 chip which is used on many alphas, sadly only in WDMA2 mode, as the silicon is broken beyond belief for UDMA modes. Lots of cosmetic fixes here and there. Sorry for the size of this megapatchfromhell but it was not possible otherwise... newbus patches based on work from: dfr (Doug Rabson)
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
/*-
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* Copyright (c) 1998,1999,2000 Søren Schmidt
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* 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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* without modification, immediately at the beginning of the file.
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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. 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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* $FreeBSD$
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*/
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/* structure describing an ATA disk */
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struct ad_softc {
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struct ata_softc *controller; /* ptr to parent ctrl */
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int32_t unit; /* ATA_MASTER or ATA_SLAVE */
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int32_t lun; /* logical unit number */
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u_int32_t total_secs; /* total # of sectors (LBA) */
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u_int8_t heads;
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u_int8_t sectors;
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u_int32_t transfersize; /* size of each transfer */
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u_int32_t num_tags; /* number of tags supported */
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u_int32_t flags; /* drive flags */
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#define AD_F_LABELLING 0x0001
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#define AD_F_LBA_ENABLED 0x0002
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#define AD_F_32B_ENABLED 0x0004
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#define AD_F_TAG_ENABLED 0x0008
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struct buf_queue_head queue; /* head of request queue */
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struct devstat stats; /* devstat entry */
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struct disk disk; /* disklabel/slice stuff */
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dev_t dev1, dev2; /* device place holder */
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};
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struct ad_request {
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struct ad_softc *device; /* ptr to parent device */
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u_int32_t blockaddr; /* block number */
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u_int32_t bytecount; /* bytes to transfer */
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u_int32_t donecount; /* bytes transferred */
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u_int32_t currentsize; /* size of current transfer */
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struct callout_handle timeout_handle; /* handle for untimeout */
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int32_t retries; /* retry count */
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int32_t flags;
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#define AR_F_READ 0x0001
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#define AR_F_ERROR 0x0002
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#define AR_F_DMA_USED 0x0004
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#define AR_F_FORCE_PIO 0x0008
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int8_t *data; /* pointer to data buf */
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struct buf *bp; /* associated buf ptr */
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u_int8_t tag; /* tag ID of this request */
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TAILQ_ENTRY(ad_request) chain; /* list management */
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};
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void ad_attach(struct ata_softc *, int32_t);
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void ad_detach(struct ata_softc *, int32_t);
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void ad_transfer(struct ad_request *);
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int32_t ad_interrupt(struct ad_request *);
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void ad_reinit(struct ad_softc *);
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