5c6445bc0d
Instead, print a diagnostic and return. (Some drivers do this already.) Also, normalize the diagnostic message, and fix some places where the printfs were getting ugly.
400 lines
9.5 KiB
C
400 lines
9.5 KiB
C
/* $NetBSD: uha_isa.c,v 1.11 1997/10/20 18:43:20 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1996, 1997 Charles M. Hannum. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Charles M. Hannum.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/user.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
|
|
#include <dev/isa/isavar.h>
|
|
#include <dev/isa/isadmavar.h>
|
|
|
|
#include <dev/ic/uhareg.h>
|
|
#include <dev/ic/uhavar.h>
|
|
|
|
#define UHA_ISA_IOSIZE 16
|
|
|
|
#ifdef __BROKEN_INDIRECT_CONFIG
|
|
int uha_isa_probe __P((struct device *, void *, void *));
|
|
#else
|
|
int uha_isa_probe __P((struct device *, struct cfdata *, void *));
|
|
#endif
|
|
void uha_isa_attach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfattach uha_isa_ca = {
|
|
sizeof(struct uha_softc), uha_isa_probe, uha_isa_attach
|
|
};
|
|
|
|
#ifndef DDB
|
|
#define Debugger() panic("should call debugger here (uha_isa.c)")
|
|
#endif /* ! DDB */
|
|
|
|
int u14_find __P((bus_space_tag_t, bus_space_handle_t,
|
|
struct uha_probe_data *));
|
|
void u14_start_mbox __P((struct uha_softc *, struct uha_mscp *));
|
|
int u14_poll __P((struct uha_softc *, struct scsipi_xfer *, int));
|
|
int u14_intr __P((void *));
|
|
void u14_init __P((struct uha_softc *));
|
|
|
|
/*
|
|
* Check the slots looking for a board we recognise
|
|
* If we find one, note it's address (slot) and call
|
|
* the actual probe routine to check it out.
|
|
*/
|
|
int
|
|
uha_isa_probe(parent, match, aux)
|
|
struct device *parent;
|
|
#ifdef __BROKEN_INDIRECT_CONFIG
|
|
void *match;
|
|
#else
|
|
struct cfdata *match;
|
|
#endif
|
|
void *aux;
|
|
{
|
|
struct isa_attach_args *ia = aux;
|
|
bus_space_tag_t iot = ia->ia_iot;
|
|
bus_space_handle_t ioh;
|
|
struct uha_probe_data upd;
|
|
int rv;
|
|
|
|
/* Disallow wildcarded i/o address. */
|
|
if (ia->ia_iobase == ISACF_PORT_DEFAULT)
|
|
return (0);
|
|
|
|
if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh))
|
|
return (0);
|
|
|
|
rv = u14_find(iot, ioh, &upd);
|
|
|
|
bus_space_unmap(iot, ioh, UHA_ISA_IOSIZE);
|
|
|
|
if (rv) {
|
|
if (ia->ia_irq != -1 && ia->ia_irq != upd.sc_irq)
|
|
return (0);
|
|
if (ia->ia_drq != -1 && ia->ia_drq != upd.sc_drq)
|
|
return (0);
|
|
ia->ia_irq = upd.sc_irq;
|
|
ia->ia_drq = upd.sc_drq;
|
|
ia->ia_msize = 0;
|
|
ia->ia_iosize = UHA_ISA_IOSIZE;
|
|
}
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* Attach all the sub-devices we can find
|
|
*/
|
|
void
|
|
uha_isa_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct isa_attach_args *ia = aux;
|
|
struct uha_softc *sc = (void *)self;
|
|
bus_space_tag_t iot = ia->ia_iot;
|
|
bus_dma_tag_t dmat = ia->ia_dmat;
|
|
bus_space_handle_t ioh;
|
|
struct uha_probe_data upd;
|
|
isa_chipset_tag_t ic = ia->ia_ic;
|
|
|
|
printf("\n");
|
|
|
|
if (bus_space_map(iot, ia->ia_iobase, UHA_ISA_IOSIZE, 0, &ioh)) {
|
|
printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
sc->sc_iot = iot;
|
|
sc->sc_ioh = ioh;
|
|
sc->sc_dmat = dmat;
|
|
if (!u14_find(iot, ioh, &upd)) {
|
|
printf("%s: u14_find failed\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
if (upd.sc_drq != -1) {
|
|
sc->sc_dmaflags = 0;
|
|
isa_dmacascade(parent, upd.sc_drq);
|
|
} else {
|
|
/*
|
|
* We have a VLB controller, and can do 32-bit DMA.
|
|
*/
|
|
sc->sc_dmaflags = ISABUS_DMA_32BIT;
|
|
}
|
|
|
|
sc->sc_ih = isa_intr_establish(ic, upd.sc_irq, IST_EDGE, IPL_BIO,
|
|
u14_intr, sc);
|
|
if (sc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt\n",
|
|
sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
/* Save function pointers for later use. */
|
|
sc->start_mbox = u14_start_mbox;
|
|
sc->poll = u14_poll;
|
|
sc->init = u14_init;
|
|
|
|
uha_attach(sc, &upd);
|
|
}
|
|
|
|
/*
|
|
* Start the board, ready for normal operation
|
|
*/
|
|
int
|
|
u14_find(iot, ioh, sc)
|
|
bus_space_tag_t iot;
|
|
bus_space_handle_t ioh;
|
|
struct uha_probe_data *sc;
|
|
{
|
|
u_int16_t model, config;
|
|
int irq, drq;
|
|
int resetcount = 4000; /* 4 secs? */
|
|
|
|
model = (bus_space_read_1(iot, ioh, U14_ID + 0) << 8) |
|
|
(bus_space_read_1(iot, ioh, U14_ID + 1) << 0);
|
|
if ((model & 0xfff0) != 0x5640)
|
|
return (0);
|
|
|
|
config = (bus_space_read_1(iot, ioh, U14_CONFIG + 0) << 8) |
|
|
(bus_space_read_1(iot, ioh, U14_CONFIG + 1) << 0);
|
|
|
|
switch (model & 0x000f) {
|
|
case 0x0000:
|
|
switch (config & U14_DMA_MASK) {
|
|
case U14_DMA_CH5:
|
|
drq = 5;
|
|
break;
|
|
case U14_DMA_CH6:
|
|
drq = 6;
|
|
break;
|
|
case U14_DMA_CH7:
|
|
drq = 7;
|
|
break;
|
|
default:
|
|
printf("u14_find: illegal drq setting %x\n",
|
|
config & U14_DMA_MASK);
|
|
return (0);
|
|
}
|
|
break;
|
|
case 0x0001:
|
|
/* This is a 34f, and doesn't need an ISA DMA channel. */
|
|
drq = -1;
|
|
break;
|
|
default:
|
|
printf("u14_find: unknown model %x\n", model);
|
|
return (0);
|
|
}
|
|
|
|
switch (config & U14_IRQ_MASK) {
|
|
case U14_IRQ10:
|
|
irq = 10;
|
|
break;
|
|
case U14_IRQ11:
|
|
irq = 11;
|
|
break;
|
|
case U14_IRQ14:
|
|
irq = 14;
|
|
break;
|
|
case U14_IRQ15:
|
|
irq = 15;
|
|
break;
|
|
default:
|
|
printf("u14_find: illegal irq setting %x\n",
|
|
config & U14_IRQ_MASK);
|
|
return (0);
|
|
}
|
|
|
|
bus_space_write_1(iot, ioh, U14_LINT, UHA_ASRST);
|
|
|
|
while (--resetcount) {
|
|
if (bus_space_read_1(iot, ioh, U14_LINT))
|
|
break;
|
|
delay(1000); /* 1 mSec per loop */
|
|
}
|
|
if (!resetcount) {
|
|
printf("u14_find: board timed out during reset\n");
|
|
return (0);
|
|
}
|
|
|
|
/* if we want to fill in softc, do so now */
|
|
if (sc) {
|
|
sc->sc_irq = irq;
|
|
sc->sc_drq = drq;
|
|
sc->sc_scsi_dev = config & U14_HOSTID_MASK;
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Function to send a command out through a mailbox
|
|
*/
|
|
void
|
|
u14_start_mbox(sc, mscp)
|
|
struct uha_softc *sc;
|
|
struct uha_mscp *mscp;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
int spincount = 100000; /* 1s should be enough */
|
|
|
|
while (--spincount) {
|
|
if ((bus_space_read_1(iot, ioh, U14_LINT) & U14_LDIP) == 0)
|
|
break;
|
|
delay(100);
|
|
}
|
|
if (!spincount) {
|
|
printf("%s: uha_start_mbox, board not responding\n",
|
|
sc->sc_dev.dv_xname);
|
|
Debugger();
|
|
}
|
|
|
|
bus_space_write_4(iot, ioh, U14_OGMPTR,
|
|
mscp->dmamap_self->dm_segs[0].ds_addr);
|
|
if (mscp->flags & MSCP_ABORT)
|
|
bus_space_write_1(iot, ioh, U14_LINT, U14_ABORT);
|
|
else
|
|
bus_space_write_1(iot, ioh, U14_LINT, U14_OGMFULL);
|
|
|
|
if ((mscp->xs->flags & SCSI_POLL) == 0)
|
|
timeout(uha_timeout, mscp, (mscp->timeout * hz) / 1000);
|
|
}
|
|
|
|
/*
|
|
* Function to poll for command completion when in poll mode.
|
|
*
|
|
* wait = timeout in msec
|
|
*/
|
|
int
|
|
u14_poll(sc, xs, count)
|
|
struct uha_softc *sc;
|
|
struct scsipi_xfer *xs;
|
|
int count;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
|
|
while (count) {
|
|
/*
|
|
* If we had interrupts enabled, would we
|
|
* have got an interrupt?
|
|
*/
|
|
if (bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP)
|
|
u14_intr(sc);
|
|
if (xs->flags & ITSDONE)
|
|
return (0);
|
|
delay(1000);
|
|
count--;
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Catch an interrupt from the adaptor
|
|
*/
|
|
int
|
|
u14_intr(arg)
|
|
void *arg;
|
|
{
|
|
struct uha_softc *sc = arg;
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
struct uha_mscp *mscp;
|
|
u_char uhastat;
|
|
u_long mboxval;
|
|
|
|
#ifdef UHADEBUG
|
|
printf("%s: uhaintr ", sc->sc_dev.dv_xname);
|
|
#endif /*UHADEBUG */
|
|
|
|
if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
|
|
return (0);
|
|
|
|
for (;;) {
|
|
/*
|
|
* First get all the information and then
|
|
* acknowledge the interrupt
|
|
*/
|
|
uhastat = bus_space_read_1(iot, ioh, U14_SINT);
|
|
mboxval = bus_space_read_4(iot, ioh, U14_ICMPTR);
|
|
/* XXX Send an ABORT_ACK instead? */
|
|
bus_space_write_1(iot, ioh, U14_SINT, U14_ICM_ACK);
|
|
|
|
#ifdef UHADEBUG
|
|
printf("status = 0x%x ", uhastat);
|
|
#endif /*UHADEBUG*/
|
|
|
|
/*
|
|
* Process the completed operation
|
|
*/
|
|
mscp = uha_mscp_phys_kv(sc, mboxval);
|
|
if (!mscp) {
|
|
printf("%s: BAD MSCP RETURNED!\n",
|
|
sc->sc_dev.dv_xname);
|
|
continue; /* whatever it was, it'll timeout */
|
|
}
|
|
|
|
untimeout(uha_timeout, mscp);
|
|
uha_done(sc, mscp);
|
|
|
|
if ((bus_space_read_1(iot, ioh, U14_SINT) & U14_SDIP) == 0)
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
void
|
|
u14_init(sc)
|
|
struct uha_softc *sc;
|
|
{
|
|
bus_space_tag_t iot = sc->sc_iot;
|
|
bus_space_handle_t ioh = sc->sc_ioh;
|
|
|
|
/* make sure interrupts are enabled */
|
|
#ifdef UHADEBUG
|
|
printf("u14_init: lmask=%02x, smask=%02x\n",
|
|
bus_space_read_1(iot, ioh, U14_LMASK),
|
|
bus_space_read_1(iot, ioh, U14_SMASK));
|
|
#endif
|
|
bus_space_write_1(iot, ioh, U14_LMASK, 0xd1); /* XXX */
|
|
bus_space_write_1(iot, ioh, U14_SMASK, 0x91); /* XXX */
|
|
}
|