989fb3947c
reports on those most welcome!
Fixed problems:
Hang on probe on "fantom" devices.
The probe now use a timeout to avoid hangs if no interrupt
is recevied.
There has also been more general code clenaups, and some reorgs.
506 lines
16 KiB
C
506 lines
16 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 1.3 1999/03/05 09:43:30 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 <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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#ifdef ATAPI_DEBUG
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static int8_t *atapi_cmd2str(u_int8_t);
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#endif
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int32_t atapi_wait(struct ata_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 && atadevices[ctlr]; ctlr++) {
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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) ? ATA_SLAVE : ATA_MASTER;
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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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ata_command(atp->controller, atp->unit, ATA_C_ATAPI_IDENTIFY,
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0, 0, 0, 0, ATA_WAIT_INTR);
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if (atapi_wait(atp->controller, 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_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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bswap(atapi_parm->serial, sizeof(atapi_parm->serial)); /* unused SOS */
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btrim(atapi_parm->serial, sizeof(atapi_parm->serial)); /* unused SOS */
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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, /*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 x;
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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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x = splbio();
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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->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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/* link onto controller queue */
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TAILQ_INSERT_TAIL(&atp->controller->atapi_queue, request, chain);
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#ifdef ATAPI_DEBUG
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printf("atapi: queued %s cmd\n", atapi_cmd2str(ccb[0]));
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#endif
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/* try to start controller */
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if (!atp->controller->active)
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ata_start(atp->controller);
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if (!callback) {
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/* wait for command to complete */
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if (tsleep((caddr_t)request, PRIBIO, "atprq", 0/*timeout*/))
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error = 0xf0;
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else
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error = request->result;
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#ifdef ATAPI_DEBUG
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printf("atapi: phew, got back from tsleep\n");
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#endif
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free(request, M_DEVBUF);
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}
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splx(x);
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return 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 int_reason; /* not needed really */
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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, 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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int_reason = inb(atp->controller->ioaddr + ATA_COUNT);
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atp->controller->status = inb(atp->controller->ioaddr + ATA_STATUS);
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if (((int_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->controller, 0) < 0) {
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printf("atapi_interrupt: timeout waiting for status");
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/* maybe check sense code ?? SOS */
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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_COUNT)&(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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outsw(atp->controller->ioaddr + ATA_DATA,
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(void *)((int32_t)request->data), /* + donecount ?? */
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length / sizeof(int16_t));
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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 *)((int32_t)request->data), /* + donecount ?? */
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length / sizeof(int16_t));
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}
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request->bytecount -= 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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insw(atp->controller->ioaddr + ATA_DATA,
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(void *)((int32_t)request->data), /* + donecount ?? */
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length / sizeof(int16_t));
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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 *)((int32_t)request->data), /* + donecount ?? */
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length / sizeof(int16_t));
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}
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request->bytecount -= 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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}
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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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if (request->callback) {
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(request->callback)(request);
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free(request, M_DEVBUF);
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}
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else
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wakeup((caddr_t)request);
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return ATA_OP_FINISHED;
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}
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void
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atapi_error(struct atapi_softc *atp, int32_t error)
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{
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printf("atapi: error = 0x%02x\n", error);
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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) 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) {
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case ATAPI_TYPE_CDROM:
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return "CDROM";
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case ATAPI_TYPE_DIRECT:
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return "floppy";
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case ATAPI_TYPE_TAPE:
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return "tape";
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case ATAPI_TYPE_OPTICAL:
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return "optical";
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default:
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return "Unknown";
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}
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}
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#ifdef ATAPI_DEBUG
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static int8_t *
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atapi_cmd2str(u_int8_t cmd)
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{
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switch (cmd) {
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case 0x00: return ("TEST_UNIT_READY");
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case 0x01: return ("REZERO_UNIT");
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case 0x03: return ("REQUEST_SENSE");
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case 0x04: return ("FORMAT_UNIT");
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case 0x1a: return ("TAPE_MODE_SENSE");
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case 0x1b: return ("START_STOP");
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case 0x1e: return ("PREVENT_ALLOW");
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case 0x25: return ("READ_CAPACITY");
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case 0x28: return ("READ_BIG");
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case 0x2a: return ("WRITE_BIG");
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case 0x35: return ("SYNCHRONIZE_CACHE");
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case 0x42: return ("READ_SUBCHANNEL");
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case 0x43: return ("READ_TOC");
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case 0x51: return ("READ_DISC_INFO");
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case 0x52: return ("READ_TRACK_INFO");
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case 0x53: return ("RESERVE_TRACK");
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case 0x54: return ("SEND_OPC_INFO");
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case 0x55: return ("MODE_SELECT");
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case 0x58: return ("REPAIR_TRACK");
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case 0x59: return ("READ_MASTER_CUE");
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case 0x5a: return ("MODE_SENSE");
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case 0x5b: return ("CLOSE_TRACK/SESSION");
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case 0x5c: return ("READ_BUFFER_CAPACITY");
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case 0x5d: return ("SEND_CUE_SHEET");
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case 0x47: return ("PLAY_MSF");
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case 0x4b: return ("PAUSE");
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case 0x48: return ("PLAY_TRACK");
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case 0xa1: return ("BLANK_CMD");
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case 0xa5: return ("PLAY_BIG");
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case 0xb4: return ("PLAY_CD");
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case 0xbd: return ("MECH_STATUS");
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case 0xbe: return ("READ_CD");
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default: {
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static int8_t buffer[16];
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sprintf(buffer, "Unknown 0x%02x", cmd);
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return buffer;
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}
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}
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}
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#endif
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int32_t
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atapi_wait(struct ata_softc *scp, u_int8_t mask)
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{
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u_int8_t status;
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u_int32_t timeout = 0;
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while (timeout++ <= 500000) { /* timeout 5 secs */
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status = inb(scp->ioaddr + ATA_STATUS);
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if ((status == 0xff) && (scp->flags & ATA_F_SLAVE_ONLY)) {
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outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE);
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DELAY(1);
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status = inb(scp->ioaddr + ATA_STATUS);
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}
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if (!(status & ATA_S_BSY))
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break;
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DELAY (10);
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}
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if (timeout <= 0)
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return -1;
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if (!mask)
|
|
return (status & ATA_S_ERROR);
|
|
|
|
/* Wait 50 msec for bits wanted. */
|
|
for (timeout=5000; timeout>0; --timeout) {
|
|
status = inb(scp->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 */
|