c4217f94eb
The atapi subsystem has gotten better error handeling and timeouts, it also tries a REQUEST SENSE command when devices returns errors, to give a little more info as to what went wrong. It might be a little verbose for now, but I'm interested in as much feedback on errors as possible, especially timeouts, as I'm a bit in doubt if I've chosen resonable default values everywhere. The disk driver has been changed a bit to prepare for tagged queing, which is next on my list. The disk driver has grown a dump routine, I got one implementation from Darrell Anderson <anderson@cs.duke.edu> which also did partial dumps (usefull on big memory machines) I left out the partial stuff for now, and changed the rest alot to fit into the new ad_request framework. Some minor cleanups and rearrangements as well. As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code. Especially the DMA support can hose your disk real bad if anything goes wrong, again you have been warned :) Notebook owners should be carefull that their machines dont suspend as this might cause trouble... But please tell me how it works for you! Enjoy! -Søren
603 lines
18 KiB
C
603 lines
18 KiB
C
/*-
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* Copyright (c) 1998,1999 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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* $Id: atapi-all.c,v 1.9 1999/05/20 09:12:04 sos Exp $
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*/
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#include "ata.h"
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#include "atapicd.h"
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#include "atapist.h"
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#include "atapifd.h"
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#include "opt_devfs.h"
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#if NATA > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/buf.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/devicestat.h>
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#include <machine/clock.h>
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#include <pci/pcivar.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-all.h>
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/* prototypes */
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static void atapi_attach(void *);
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static int32_t atapi_getparam(struct atapi_softc *);
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static int8_t *atapi_type(int32_t);
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static int8_t *atapi_cmd2str(u_int8_t);
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static int8_t * atapi_skey2str(u_int8_t);
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static int32_t atapi_wait(struct atapi_softc *, u_int8_t);
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static void atapi_init(void);
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/* extern references */
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int32_t acdattach(struct atapi_softc *);
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int32_t afdattach(struct atapi_softc *);
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int32_t astattach(struct atapi_softc *);
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static struct intr_config_hook *atapi_attach_hook;
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static void
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atapi_attach(void *notused)
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{
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struct atapi_softc *atp;
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int32_t ctlr, dev;
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int8_t model_buf[40+1];
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int8_t revision_buf[8+1];
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/* now, run through atadevices and look for ATAPI devices */
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for (ctlr=0; ctlr<MAXATA; ctlr++) {
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if (!atadevices[ctlr]) continue;
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for (dev=0; dev<2; dev++) {
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if (atadevices[ctlr]->devices &
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(dev ? ATA_ATAPI_SLAVE : ATA_ATAPI_MASTER)) {
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if (!(atp = malloc(sizeof(struct atapi_softc),
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M_DEVBUF, M_NOWAIT))) {
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printf("atapi: failed to allocate driver storage\n");
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continue;
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}
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bzero(atp, sizeof(struct atapi_softc));
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atp->controller = atadevices[ctlr];
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atp->unit = (dev == 0) ? ATA_MASTER : ATA_SLAVE;
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if (atapi_getparam(atp)) {
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free(atp, M_DEVBUF);
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continue;
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}
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switch (atp->atapi_parm->device_type) {
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#if NATAPICD > 0
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case ATAPI_TYPE_CDROM:
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if (acdattach(atp))
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goto notfound;
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break;
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#endif
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#if NATAPIFD > 0
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case ATAPI_TYPE_DIRECT:
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if (afdattach(atp))
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goto notfound;
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break;
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#endif
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#if NATAPIST > 0
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case ATAPI_TYPE_TAPE:
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if (astattach(atp))
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goto notfound;
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break;
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#endif
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notfound:
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default:
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bpack(atp->atapi_parm->model, model_buf, sizeof(model_buf));
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bpack(atp->atapi_parm->revision, revision_buf,
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sizeof(revision_buf));
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printf("atapi: <%s/%s> %s device at ata%d as %s "
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"- NO DRIVER!\n",
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model_buf, revision_buf,
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atapi_type(atp->atapi_parm->device_type),
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ctlr,
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(dev) ? "slave" : "master ");
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free(atp, M_DEVBUF);
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}
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}
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}
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}
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config_intrhook_disestablish(atapi_attach_hook);
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}
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static int32_t
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atapi_getparam(struct atapi_softc *atp)
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{
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struct atapi_params *atapi_parm;
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int8_t buffer[DEV_BSIZE];
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/* select drive */
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outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit);
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DELAY(1);
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ata_command(atp->controller, atp->unit, ATA_C_ATAPI_IDENTIFY,
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0, 0, 0, 0, 0, ATA_WAIT_INTR);
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if (atapi_wait(atp, ATA_S_DRQ))
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return -1;
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insw(atp->controller->ioaddr + ATA_DATA, buffer,
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sizeof(buffer)/sizeof(int16_t));
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if (atapi_wait(atp, 0))
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return -1;
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if (!(atapi_parm = malloc(sizeof(struct atapi_params), M_DEVBUF, M_NOWAIT)))
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return -1;
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bcopy(buffer, atapi_parm, sizeof(struct atapi_params));
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if (!((atapi_parm->model[0] == 'N' && atapi_parm->model[1] == 'E') ||
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(atapi_parm->model[0] == 'F' && atapi_parm->model[1] == 'X')))
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bswap(atapi_parm->model, sizeof(atapi_parm->model));
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btrim(atapi_parm->model, sizeof(atapi_parm->model));
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bswap(atapi_parm->revision, sizeof(atapi_parm->revision));
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btrim(atapi_parm->revision, sizeof(atapi_parm->revision));
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atp->atapi_parm = atapi_parm;
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return 0;
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}
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int32_t
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atapi_queue_cmd(struct atapi_softc *atp, int8_t *ccb, void *data,
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int32_t count, int32_t flags, int32_t timeout,
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atapi_callback_t callback, void *driver, struct buf *bp)
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{
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struct atapi_request *request;
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int32_t error = 0;
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int32_t s;
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atp->last_cmd = ccb[0];
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if (!(request = malloc(sizeof(struct atapi_request), M_DEVBUF, M_NOWAIT)))
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return -1;
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bzero(request, sizeof(struct atapi_request));
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request->device = atp;
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request->data = data;
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request->bytecount = count;
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request->donecount = 0;
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request->flags = flags;
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if (callback) {
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request->callback = callback;
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request->bp = bp;
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request->driver = driver;
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}
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request->ccbsize = (atp->atapi_parm->cmdsize) ? 16 : 12;
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bcopy(ccb, request->ccb, request->ccbsize);
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s = splbio();
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/* link onto controller queue */
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if (ccb[0] == ATAPI_REQUEST_SENSE)
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TAILQ_INSERT_HEAD(&atp->controller->atapi_queue, request, chain);
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else
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TAILQ_INSERT_TAIL(&atp->controller->atapi_queue, request, chain);
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/* try to start controller */
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if (atp->controller->active == ATA_IDLE)
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ata_start(atp->controller);
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splx(s);
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/* wait for command to complete */
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if (tsleep((caddr_t)request, PRIBIO, "atprq", timeout*100)) {
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if (atp->controller->active != ATA_IDLE)
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atp->controller->active = ATA_IDLE;
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/* should we reset device here ? */
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request->result |= 0xf0;
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}
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#ifdef ATAPI_DEBUG
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printf("atapi: phew, got back from tsleep with %s\n"
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(request->result & 0xf0) == 0xf0 ? "timeout" : "wakeup"));
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#endif
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if (callback) {
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(request->callback)(request);
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free(request, M_DEVBUF);
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return 0;
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}
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error = request->result;
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free(request, M_DEVBUF);
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if (ccb[0] == ATAPI_REQUEST_SENSE)
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return 0;
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else
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return atapi_error(atp, error);
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}
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void
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atapi_transfer(struct atapi_request *request)
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{
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struct atapi_softc *atp;
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int32_t timeout;
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int8_t reason;
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/* get device params */
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atp = request->device;
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#ifdef ATAPI_DEBUG
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printf("atapi: trying to start %s cmd\n", atapi_cmd2str(request->ccb[0]));
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#endif
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/* start ATAPI operation */
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ata_command(atp->controller, atp->unit, ATA_C_PACKET_CMD,
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request->bytecount, 0, 0, 0, 0, ATA_IMMEDIATE);
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/* command interrupt device ? just return */
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if (atp->atapi_parm->drqtype == ATAPI_DRQT_INTR)
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return;
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/* ready to write ATAPI command */
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timeout = 5000; /* might be less for fast devices */
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while (timeout--) {
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reason = inb(atp->controller->ioaddr + ATA_IREASON);
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atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS);
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if (((reason & (ATA_I_CMD | ATA_I_IN)) |
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(atp->controller->status&(ATA_S_DRQ|ATA_S_BSY))) == ATAPI_P_CMDOUT)
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break;
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DELAY(20);
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}
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if (timeout <= 0) {
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atp->controller->error = inb(atp->controller->ioaddr + ATA_ERROR);
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printf("atapi_transfer: bad command phase\n");
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/* now what ?? done & again ?? SOS */
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}
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/* this seems to be needed for some (slow) devices */
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DELAY(10);
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/* send actual command */
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outsw(atp->controller->ioaddr + ATA_DATA, request->ccb,
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request->ccbsize / sizeof(int16_t));
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}
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int32_t
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atapi_interrupt(struct atapi_request *request)
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{
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struct atapi_softc *atp;
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int32_t length, reason, resid;
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#ifdef ATAPI_DEBUG
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printf("atapi_interrupt: enter\n");
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#endif
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/* get device params */
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atp = request->device;
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/* get drive status */
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if (atapi_wait(atp, 0) < 0) {
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printf("atapi_interrupt: timeout waiting for status");
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request->result = inb(atp->controller->ioaddr + ATA_ERROR);
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wakeup((caddr_t)request);
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return ATA_OP_FINISHED;
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}
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atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS);
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atp->controller->error = inb(atp->controller->ioaddr + ATA_ERROR);
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length = inb(atp->controller->ioaddr + ATA_CYL_LSB);
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length |= inb(atp->controller->ioaddr + ATA_CYL_MSB) << 8;
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reason = (inb(atp->controller->ioaddr + ATA_IREASON)&(ATA_I_CMD|ATA_I_IN)) |
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(atp->controller->status & ATA_S_DRQ);
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#ifdef ATAPI_DEBUG
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printf("atapi_interrupt: length=%d reason=0x%02x\n", length, reason);
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#endif
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switch (reason) {
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case ATAPI_P_CMDOUT:
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/* send ATAPI command */
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if (!(atp->controller->status & ATA_S_DRQ))
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printf("atapi_interrupt: command interrupt, but no DRQ\n");
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else
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outsw(atp->controller->ioaddr + ATA_DATA, request->ccb,
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request->ccbsize / sizeof(int16_t));
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return ATA_OP_CONTINUES;
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case ATAPI_P_WRITE:
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if (request->flags & A_READ) {
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printf("atapi_interrupt: trying to write on read buffer\n");
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break;
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}
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if (request->bytecount < length) {
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printf("atapi_interrupt: write data underrun %d/%d\n",
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length, request->bytecount);
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#if 0
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outsw(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int16_t));
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#else
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outsl(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int32_t));
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#endif
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for (resid=request->bytecount; resid<length; resid+=sizeof(int16_t))
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outw(atp->controller->ioaddr + ATA_DATA, 0);
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}
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else {
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outsw(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int16_t));
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}
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request->bytecount -= length;
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request->donecount += length;
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request->data += length;
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return ATA_OP_CONTINUES;
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case ATAPI_P_READ:
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if (!(request->flags & A_READ)) {
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printf("atapi_interrupt: trying to read on write buffer\n");
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break;
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}
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if (request->bytecount < length) {
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printf("atapi_interrupt: read data overrun %d/%d\n",
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length, request->bytecount);
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#if 0
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insw(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int16_t));
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#else
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insl(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int32_t));
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#endif
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for (resid=request->bytecount; resid<length; resid+=sizeof(int16_t))
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inw(atp->controller->ioaddr + ATA_DATA);
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}
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else {
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insw(atp->controller->ioaddr + ATA_DATA,
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(void *)((uintptr_t)request->data), length / sizeof(int16_t));
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}
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request->bytecount -= length;
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request->donecount += length;
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request->data += length;
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return ATA_OP_CONTINUES;
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case ATAPI_P_ABORT:
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case ATAPI_P_DONE:
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request->result = 0;
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if (atp->controller->status & (ATA_S_ERROR | ATA_S_DWF)) {
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/* check sense !! SOS */
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request->result = atp->controller->error;
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break;
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}
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#ifdef ATAPI_DEBUG
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if (request->bytecount > 0) {
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printf("atapi_interrupt: %s size problem, %d bytes residue\n",
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(request->flags & A_READ) ? "read" : "write",
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request->bytecount);
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}
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#endif
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break;
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default:
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printf("atapi_interrupt: unknown transfer phase %d\n", reason);
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}
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TAILQ_REMOVE(&atp->controller->atapi_queue, request, chain);
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#ifdef ATAPI_DEBUG
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printf("atapi_interrupt: error=0x%02x\n", request->result);
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#endif
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wakeup((caddr_t)request);
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return ATA_OP_FINISHED;
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}
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int32_t
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atapi_error(struct atapi_softc *atp, int32_t error)
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{
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struct atapi_reqsense sense;
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int8_t cmd = atp->last_cmd;
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int8_t ccb[16] = { ATAPI_REQUEST_SENSE, 0, 0, 0, sizeof(sense),
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0, 0, 0 ,0 ,0, 0, 0, 0, 0, 0, 0 };
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switch ((error & 0xf0)) {
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case ATAPI_SK_RESERVED:
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printf("atapi_error: %s - timeout error = %02x\n",
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atapi_cmd2str(cmd), error & 0x0f);
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return EIO;
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case ATAPI_SK_NO_SENSE:
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if (error & 0x0f) {
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printf("atapi_error: %s - error = %02x\n",
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atapi_cmd2str(cmd), error & 0x0f);
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return EIO;
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}
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return 0;
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case ATAPI_SK_RECOVERED_ERROR:
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printf("atapi_error: %s - recovered error\n", atapi_cmd2str(cmd));
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return 0;
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case ATAPI_SK_NOT_READY:
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if (error & 0x0f)
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break;
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return EBUSY;
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case ATAPI_SK_UNIT_ATTENTION:
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return EAGAIN; /* misused */
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}
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bzero(&sense, sizeof(struct atapi_reqsense));
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atapi_queue_cmd(atp, ccb, &sense, sizeof(struct atapi_reqsense),
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A_READ, 10, NULL, NULL, NULL);
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printf("atapi_error: %s - %s skey=%01x asc=%02x ascq=%02x error=%02x\n",
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atapi_cmd2str(cmd), atapi_skey2str(sense.sense_key),
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sense.sense_key, sense.asc, sense.ascq, error & 0x0f);
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return EIO;
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}
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void
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atapi_dump(int8_t *label, void *data, int32_t len)
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{
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u_int8_t *p = data;
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printf ("atapi: %s %x", label, *p++);
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while (--len > 0)
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printf ("-%02x", *p++);
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printf ("\n");
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}
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static int8_t *
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atapi_type(int32_t type)
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{
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switch (type) {
|
|
case ATAPI_TYPE_CDROM:
|
|
return "CDROM";
|
|
case ATAPI_TYPE_DIRECT:
|
|
return "floppy";
|
|
case ATAPI_TYPE_TAPE:
|
|
return "tape";
|
|
case ATAPI_TYPE_OPTICAL:
|
|
return "optical";
|
|
default:
|
|
return "Unknown";
|
|
}
|
|
}
|
|
|
|
static int8_t *
|
|
atapi_cmd2str(u_int8_t cmd)
|
|
{
|
|
switch (cmd) {
|
|
case 0x00: return ("TEST_UNIT_READY");
|
|
case 0x01: return ("REZERO_UNIT/TAPE_REWIND");
|
|
case 0x03: return ("REQUEST_SENSE");
|
|
case 0x04: return ("FORMAT_UNIT");
|
|
case 0x08: return ("TAPE_READ");
|
|
case 0x0a: return ("TAPE_WRITE");
|
|
case 0x10: return ("TAPE_WEOF");
|
|
case 0x11: return ("TAPE_SPACE");
|
|
case 0x19: return ("TAPE_ERASE");
|
|
case 0x1a: return ("TAPE_MODE_SENSE");
|
|
case 0x1b: return ("START_STOP/TAPE_LOAD");
|
|
case 0x1e: return ("PREVENT_ALLOW");
|
|
case 0x25: return ("READ_CAPACITY");
|
|
case 0x28: return ("READ_BIG");
|
|
case 0x2a: return ("WRITE_BIG");
|
|
case 0x35: return ("SYNCHRONIZE_CACHE");
|
|
case 0x42: return ("READ_SUBCHANNEL");
|
|
case 0x43: return ("READ_TOC");
|
|
case 0x51: return ("READ_DISC_INFO");
|
|
case 0x52: return ("READ_TRACK_INFO");
|
|
case 0x53: return ("RESERVE_TRACK");
|
|
case 0x54: return ("SEND_OPC_INFO");
|
|
case 0x55: return ("MODE_SELECT");
|
|
case 0x58: return ("REPAIR_TRACK");
|
|
case 0x59: return ("READ_MASTER_CUE");
|
|
case 0x5a: return ("MODE_SENSE");
|
|
case 0x5b: return ("CLOSE_TRACK/SESSION");
|
|
case 0x5c: return ("READ_BUFFER_CAPACITY");
|
|
case 0x5d: return ("SEND_CUE_SHEET");
|
|
case 0x47: return ("PLAY_MSF");
|
|
case 0x4b: return ("PAUSE");
|
|
case 0x48: return ("PLAY_TRACK");
|
|
case 0xa1: return ("BLANK_CMD");
|
|
case 0xa5: return ("PLAY_BIG");
|
|
case 0xb4: return ("PLAY_CD");
|
|
case 0xbd: return ("MECH_STATUS");
|
|
case 0xbe: return ("READ_CD");
|
|
default: {
|
|
static int8_t buffer[16];
|
|
sprintf(buffer, "Unknown CMD (0x%02x)", cmd);
|
|
return buffer;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int8_t *
|
|
atapi_skey2str(u_int8_t skey)
|
|
{
|
|
switch (skey) {
|
|
case 0x00: return ("NO SENSE");
|
|
case 0x01: return ("RECOVERED ERROR");
|
|
case 0x02: return ("NOT READY");
|
|
case 0x03: return ("MEDIUM ERROR");
|
|
case 0x04: return ("HARDWARE ERROR");
|
|
case 0x05: return ("ILLEGAL REQUEST");
|
|
case 0x06: return ("UNIT ATTENTION");
|
|
case 0x07: return ("DATA PROTECT");
|
|
case 0x08: return ("BLANK CHECK");
|
|
case 0x09: return ("VENDOR SPECIFIC");
|
|
case 0x0a: return ("COPY ABORTED");
|
|
case 0x0b: return ("ABORTED COMMAND");
|
|
case 0x0c: return ("EQUAL");
|
|
case 0x0d: return ("VOLUME OVERFLOW");
|
|
case 0x0e: return ("MISCOMPARE");
|
|
case 0x0f: return ("RESERVED");
|
|
default: return("UNKNOWN");
|
|
}
|
|
}
|
|
|
|
static int32_t
|
|
atapi_wait(struct atapi_softc *atp, u_int8_t mask)
|
|
{
|
|
u_int8_t status;
|
|
u_int32_t timeout = 0;
|
|
|
|
while (timeout++ <= 500000) { /* timeout 5 secs */
|
|
status = inb(atp->controller->ioaddr + ATA_STATUS);
|
|
|
|
/* if drive fails status, reselect the drive just to be sure */
|
|
if (status == 0xff) {
|
|
outb(atp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | atp->unit);
|
|
DELAY(1);
|
|
status = inb(atp->controller->ioaddr + ATA_STATUS);
|
|
}
|
|
if (!(status & ATA_S_BSY) && (status & ATA_S_DRDY))
|
|
break;
|
|
DELAY (10);
|
|
}
|
|
if (timeout <= 0)
|
|
return -1;
|
|
if (!mask)
|
|
return (status & ATA_S_ERROR);
|
|
|
|
/* Wait 50 msec for bits wanted. */
|
|
for (timeout=5000; timeout>0; --timeout) {
|
|
status = inb(atp->controller->ioaddr + ATA_STATUS);
|
|
if ((status & mask) == mask)
|
|
return (status & ATA_S_ERROR);
|
|
DELAY (10);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
atapi_init(void)
|
|
{
|
|
/* register callback for when interrupts are enabled */
|
|
if (!(atapi_attach_hook =
|
|
(struct intr_config_hook *)malloc(sizeof(struct intr_config_hook),
|
|
M_TEMP, M_NOWAIT))) {
|
|
printf("atapi: malloc attach_hook failed\n");
|
|
return;
|
|
}
|
|
bzero(atapi_attach_hook, sizeof(struct intr_config_hook));
|
|
|
|
atapi_attach_hook->ich_func = atapi_attach;
|
|
if (config_intrhook_establish(atapi_attach_hook) != 0) {
|
|
printf("atapi: config_intrhook_establish failed\n");
|
|
free(atapi_attach_hook, M_TEMP);
|
|
}
|
|
|
|
}
|
|
|
|
SYSINIT(atconf, SI_SUB_CONFIGURE, SI_ORDER_SECOND, atapi_init, NULL)
|
|
#endif /* NATA */
|