Synchronize with sys/i386/isa/wd.c revision 1.126.
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kato
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31d1390c7e
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)wd.c 7.2 (Berkeley) 5/9/91
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* $Id$
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* $Id: wd.c,v 1.19 1997/02/22 09:43:52 peter Exp $
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*/
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/* TODO:
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@ -102,10 +102,15 @@
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#include <vm/vm_prot.h>
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#include <vm/pmap.h>
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#ifdef ATAPI
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#include <i386/isa/atapi.h>
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#endif
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#ifdef CMD640
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#include <i386/isa/wdc_p.h>
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#endif /*CMD640*/
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extern void wdstart(int ctrlr);
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#define TIMEOUT 10000
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@ -147,6 +152,8 @@ epson_errorf(int wdc)
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#define RECAL 2 /* doing restore */
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#define OPEN 3 /* done with open */
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#define PRIMARY 0
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/*
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* Disk geometry. A small part of struct disklabel.
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* XXX disklabel.5 contains an old clone of disklabel.h.
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@ -168,6 +175,9 @@ struct disk {
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long dk_bc; /* byte count left */
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short dk_skip; /* blocks already transferred */
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int dk_ctrlr; /* physical controller number */
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#ifdef CMD640
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int dk_ctrlr_cmd640;/* controller number for CMD640 quirk */
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#endif
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int dk_unit; /* physical unit number */
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int dk_lunit; /* logical unit number */
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char dk_state; /* control state */
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@ -264,6 +274,26 @@ static struct bdevsw wd_bdevsw =
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{ wdopen, wdclose, wdstrategy, wdioctl, /*0*/
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wddump, wdsize, D_DISK, "wd", &wd_cdevsw, -1 };
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#ifdef CMD640
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static int atapictrlr;
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static int eide_quirks;
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#endif
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/*
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* Here we use the pci-subsystem to find out, whether there is
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* a cmd640b-chip attached on this pci-bus. This public routine
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* will be called by wdc_p.c .
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*/
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#ifdef CMD640
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void
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wdc_pci(int quirks)
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{
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eide_quirks = quirks;
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}
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#endif
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/*
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* Probe for controller.
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*/
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@ -423,7 +453,18 @@ wdattach(struct isa_device *dvp)
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if (dvp->id_unit >= NWDC)
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return (0);
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#ifdef CMD640
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if (eide_quirks & Q_CMD640B) {
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if (dvp->id_unit == PRIMARY) {
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printf("wdc0: CMD640B workaround enabled\n");
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TAILQ_INIT( &wdtab[PRIMARY].controller_queue);
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}
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} else
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TAILQ_INIT( &wdtab[dvp->id_unit].controller_queue);
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#else
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TAILQ_INIT( &wdtab[dvp->id_unit].controller_queue);
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#endif
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for (wdup = isa_biotab_wdc; wdup->id_driver != 0; wdup++) {
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if (!old_epson_note) {
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@ -452,6 +493,13 @@ wdattach(struct isa_device *dvp)
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TAILQ_INIT( &drive_queue[lunit]);
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bzero(du, sizeof *du);
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du->dk_ctrlr = dvp->id_unit;
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#ifdef CMD640
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if (eide_quirks & Q_CMD640B) {
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du->dk_ctrlr_cmd640 = PRIMARY;
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} else {
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du->dk_ctrlr_cmd640 = du->dk_ctrlr;
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}
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#endif
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du->dk_unit = unit;
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du->dk_lunit = lunit;
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du->dk_port = dvp->id_iobase;
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@ -548,14 +596,23 @@ wdattach(struct isa_device *dvp)
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if (wddrives[lunit]->dk_ctrlr == dvp->id_unit &&
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wddrives[lunit]->dk_unit == unit)
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goto next;
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#ifdef CMD640
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if (atapi_attach (dvp->id_unit, unit, dvp->id_iobase))
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atapictrlr = dvp->id_unit;
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#else
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atapi_attach (dvp->id_unit, unit, dvp->id_iobase);
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#endif
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next: }
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#endif
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/*
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* Discard any interrupts generated by wdgetctlr(). wdflushirq()
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* doesn't work now because the ambient ipl is too high.
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*/
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#ifdef CMD640
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wdtab[du->dk_ctrlr_cmd640].b_active = 2;
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#else
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wdtab[dvp->id_unit].b_active = 2;
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#endif
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return (1);
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}
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@ -634,7 +691,11 @@ wdstrategy(register struct buf *bp)
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du->dk_state = WANTOPEN;
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}
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#ifdef CMD640
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if (wdtab[du->dk_ctrlr_cmd640].b_active == 0)
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#else
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if (wdtab[du->dk_ctrlr].b_active == 0)
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#endif
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wdstart(du->dk_ctrlr); /* start controller */
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if (du->dk_dkunit >= 0) {
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@ -682,7 +743,11 @@ static void
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wdustart(register struct disk *du)
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{
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register struct buf *bp;
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#ifdef CMD640
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int ctrlr = du->dk_ctrlr_cmd640;
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#else
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int ctrlr = du->dk_ctrlr;
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#endif
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#ifdef PC98
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outb(0x432,(du->dk_unit)%2);
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@ -723,6 +788,16 @@ wdstart(int ctrlr)
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long secpertrk, secpercyl;
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int lunit;
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int count;
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#ifdef CMD640
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int ctrlr_atapi;
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if (eide_quirks & Q_CMD640B) {
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ctrlr = PRIMARY;
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ctrlr_atapi = atapictrlr;
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} else {
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ctrlr_atapi = ctrlr;
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}
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#endif
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#ifdef ATAPI
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if (wdtab[ctrlr].b_active == 2)
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@ -734,9 +809,14 @@ wdstart(int ctrlr)
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bp = wdtab[ctrlr].controller_queue.tqh_first;
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if (bp == NULL) {
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#ifdef ATAPI
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#ifdef CMD640
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if (atapi_start && atapi_start (ctrlr_atapi))
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wdtab[ctrlr].b_active = 3;
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#else
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if (atapi_start && atapi_start (ctrlr))
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/* mark controller active in ATAPI mode */
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wdtab[ctrlr].b_active = 3;
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#endif
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#endif
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return;
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}
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@ -976,6 +1056,17 @@ wdintr(int unit)
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register struct disk *du;
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register struct buf *bp;
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#ifdef CMD640
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int ctrlr_atapi;
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if (eide_quirks & Q_CMD640B) {
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unit = PRIMARY;
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ctrlr_atapi = atapictrlr;
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} else {
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ctrlr_atapi = unit;
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}
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#endif
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if (wdtab[unit].b_active == 2)
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return; /* intr in wdflushirq() */
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if (!wdtab[unit].b_active) {
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@ -992,7 +1083,11 @@ wdintr(int unit)
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#ifdef ATAPI
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if (wdtab[unit].b_active == 3) {
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/* process an ATAPI interrupt */
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#ifdef CMD640
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if (atapi_intr && atapi_intr (ctrlr_atapi))
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#else
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if (atapi_intr && atapi_intr (unit))
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#endif
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/* ATAPI op continues */
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return;
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/* controller is free, start new op */
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@ -1211,8 +1306,13 @@ wdopen(dev_t dev, int flags, int fmt, struct proc *p)
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#endif
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/* Finish flushing IRQs left over from wdattach(). */
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#ifdef CMD640
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if (wdtab[du->dk_ctrlr_cmd640].b_active == 2)
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wdtab[du->dk_ctrlr_cmd640].b_active = 0;
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#else
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if (wdtab[du->dk_ctrlr].b_active == 2)
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wdtab[du->dk_ctrlr].b_active = 0;
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#endif
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du->dk_flags &= ~DKFL_BADSCAN;
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@ -1377,7 +1477,11 @@ wdcontrol(register struct buf *bp)
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int ctrlr;
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du = wddrives[dkunit(bp->b_dev)];
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#ifdef CMD640
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ctrlr = du->dk_ctrlr_cmd640;
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#else
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ctrlr = du->dk_ctrlr;
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#endif
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#ifdef PC98
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outb(0x432,(du->dk_unit)%2);
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@ -1550,7 +1654,11 @@ wdsetctlr(struct disk *du)
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error = 1;
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}
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if (error) {
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#ifdef CMD640
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wdtab[du->dk_ctrlr_cmd640].b_errcnt += RETRIES;
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#else
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wdtab[du->dk_ctrlr].b_errcnt += RETRIES;
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#endif
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return (1);
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}
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if (wdcommand(du, du->dk_dd.d_ncylinders, du->dk_dd.d_ntracks - 1, 0,
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@ -2136,10 +2244,17 @@ wderror(struct buf *bp, struct disk *du, char *mesg)
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static void
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wdflushirq(struct disk *du, int old_ipl)
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{
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#ifdef CMD640
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wdtab[du->dk_ctrlr_cmd640].b_active = 2;
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splx(old_ipl);
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(void)splbio();
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wdtab[du->dk_ctrlr_cmd640].b_active = 0;
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#else
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wdtab[du->dk_ctrlr].b_active = 2;
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splx(old_ipl);
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(void)splbio();
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wdtab[du->dk_ctrlr].b_active = 0;
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#endif
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}
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/*
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@ -2198,6 +2313,10 @@ static void
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wdsleep(int ctrlr, char *wmesg)
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{
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int s = splbio();
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#ifdef CMD640
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if (eide_quirks & Q_CMD640B)
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ctrlr = PRIMARY;
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#endif
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while (wdtab[ctrlr].b_active)
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tsleep((caddr_t)&wdtab[ctrlr].b_active, PZERO - 1, wmesg, 1);
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splx(s);
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