401 lines
10 KiB
C
401 lines
10 KiB
C
/*
|
|
* Copyright (c) 1997, 1999 Hellmuth Michaelis. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
*
|
|
*---------------------------------------------------------------------------
|
|
*
|
|
* i4b_isic.c - global isic stuff
|
|
* ==============================
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
* last edit-date: [Mon Jul 26 10:59:56 1999]
|
|
*
|
|
*---------------------------------------------------------------------------*/
|
|
|
|
#ifdef __FreeBSD__
|
|
#include "isic.h"
|
|
#include "opt_i4b.h"
|
|
#else
|
|
#define NISIC 1
|
|
#endif
|
|
#if NISIC > 0
|
|
|
|
#include <sys/param.h>
|
|
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
|
|
#include <sys/ioccom.h>
|
|
#else
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/socket.h>
|
|
#include <net/if.h>
|
|
|
|
#ifdef __FreeBSD__
|
|
#include <machine/clock.h>
|
|
#include <i386/isa/isa_device.h>
|
|
#else
|
|
#include <sys/device.h>
|
|
#if defined(__NetBSD__) && defined(amiga)
|
|
#include <machine/bus.h>
|
|
#else
|
|
#ifndef __bsdi__
|
|
#include <dev/isa/isavar.h>
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __FreeBSD__
|
|
#include <machine/i4b_debug.h>
|
|
#include <machine/i4b_ioctl.h>
|
|
#include <machine/i4b_trace.h>
|
|
#else
|
|
#include <i4b/i4b_debug.h>
|
|
#include <i4b/i4b_ioctl.h>
|
|
#include <i4b/i4b_trace.h>
|
|
#endif
|
|
|
|
#include <i4b/layer1/i4b_l1.h>
|
|
#include <i4b/layer1/i4b_ipac.h>
|
|
#include <i4b/layer1/i4b_isac.h>
|
|
#include <i4b/layer1/i4b_hscx.h>
|
|
|
|
#include <i4b/include/i4b_l1l2.h>
|
|
#include <i4b/include/i4b_mbuf.h>
|
|
#include <i4b/include/i4b_global.h>
|
|
|
|
void isic_settrace(int unit, int val);
|
|
int isic_gettrace(int unit);
|
|
|
|
#ifdef __bsdi__
|
|
static int isicmatch(struct device *parent, struct cfdata *cf, void *aux);
|
|
static void isicattach(struct device *parent, struct device *self, void *aux);
|
|
struct cfdriver isiccd =
|
|
{ NULL, "isic", isicmatch, isicattach, DV_IFNET,
|
|
sizeof(struct isic_softc) };
|
|
|
|
int isa_isicmatch(struct device *parent, struct cfdata *cf, struct isa_attach_args *);
|
|
int isapnp_isicmatch(struct device *parent, struct cfdata *cf, struct isa_attach_args *);
|
|
int isa_isicattach(struct device *parent, struct device *self, struct isa_attach_args *ia);
|
|
|
|
static int
|
|
isicmatch(struct device *parent, struct cfdata *cf, void *aux)
|
|
{
|
|
struct isa_attach_args *ia = (struct isa_attach_args *) aux;
|
|
if (ia->ia_bustype == BUS_PCMCIA) {
|
|
ia->ia_irq = IRQNONE;
|
|
/* return 1; Not yet */
|
|
return 0; /* for now */
|
|
}
|
|
if (ia->ia_bustype == BUS_PNP) {
|
|
return isapnp_isicmatch(parent, cf, ia);
|
|
}
|
|
return isa_isicmatch(parent, cf, ia);
|
|
}
|
|
|
|
static void
|
|
isicattach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct isa_attach_args *ia = (struct isa_attach_args *) aux;
|
|
struct isic_softc *sc = (struct isic_softc *)self;
|
|
|
|
sc->sc_flags = sc->sc_dev.dv_flags;
|
|
isa_isicattach(parent, self, ia);
|
|
isa_establish(&sc->sc_id, &sc->sc_dev);
|
|
sc->sc_ih.ih_fun = isicintr;
|
|
sc->sc_ih.ih_arg = (void *)sc;
|
|
intr_establish(ia->ia_irq, &sc->sc_ih, DV_NET);
|
|
/* Could add a shutdown hook here... */
|
|
}
|
|
#endif
|
|
|
|
#ifdef __FreeBSD__
|
|
void isicintr_sc(struct isic_softc *sc);
|
|
#if !(defined(__FreeBSD_version)) || (defined(__FreeBSD_version) && __FreeBSD_version >= 300006)
|
|
void isicintr(int unit);
|
|
#endif
|
|
#else
|
|
/* XXX - hack, going away soon! */
|
|
struct isic_softc *isic_sc[ISIC_MAXUNIT];
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* isic - device driver interrupt routine
|
|
*---------------------------------------------------------------------------*/
|
|
#ifdef __FreeBSD__
|
|
|
|
void
|
|
isicintr_sc(struct isic_softc *sc)
|
|
{
|
|
isicintr(sc->sc_unit);
|
|
}
|
|
|
|
void
|
|
isicintr(int unit)
|
|
{
|
|
register struct isic_softc *sc = &isic_sc[unit];
|
|
#else
|
|
int
|
|
isicintr(void *arg)
|
|
{
|
|
struct isic_softc *sc = arg;
|
|
#endif
|
|
|
|
if(sc->sc_ipac == 0) /* HSCX/ISAC interupt routine */
|
|
{
|
|
u_char was_hscx_irq = 0;
|
|
u_char was_isac_irq = 0;
|
|
|
|
register u_char hscx_irq_stat;
|
|
register u_char isac_irq_stat;
|
|
|
|
for(;;)
|
|
{
|
|
/* get hscx irq status from hscx b ista */
|
|
hscx_irq_stat =
|
|
HSCX_READ(HSCX_CH_B, H_ISTA) & ~HSCX_B_IMASK;
|
|
|
|
/* get isac irq status */
|
|
isac_irq_stat = ISAC_READ(I_ISTA);
|
|
|
|
/* do as long as there are pending irqs in the chips */
|
|
if(!hscx_irq_stat && !isac_irq_stat)
|
|
break;
|
|
|
|
if(hscx_irq_stat & (HSCX_ISTA_RME | HSCX_ISTA_RPF |
|
|
HSCX_ISTA_RSC | HSCX_ISTA_XPR |
|
|
HSCX_ISTA_TIN | HSCX_ISTA_EXB))
|
|
{
|
|
isic_hscx_irq(sc, hscx_irq_stat,
|
|
HSCX_CH_B,
|
|
hscx_irq_stat & HSCX_ISTA_EXB);
|
|
was_hscx_irq = 1;
|
|
}
|
|
|
|
if(hscx_irq_stat & (HSCX_ISTA_ICA | HSCX_ISTA_EXA))
|
|
{
|
|
isic_hscx_irq(sc,
|
|
HSCX_READ(HSCX_CH_A, H_ISTA) & ~HSCX_A_IMASK,
|
|
HSCX_CH_A,
|
|
hscx_irq_stat & HSCX_ISTA_EXA);
|
|
was_hscx_irq = 1;
|
|
}
|
|
|
|
if(isac_irq_stat)
|
|
{
|
|
isic_isac_irq(sc, isac_irq_stat); /* isac handler */
|
|
was_isac_irq = 1;
|
|
}
|
|
}
|
|
|
|
#ifdef NOTDEF
|
|
|
|
#if !defined(amiga) && !defined(atari) /* XXX should be: #if INTS_ARE_SHARED */
|
|
#ifdef ELSA_QS1ISA
|
|
if(sc->sc_cardtyp != CARD_TYPEP_ELSAQS1ISA)
|
|
{
|
|
#endif
|
|
if((was_hscx_irq == 0) && (was_isac_irq == 0))
|
|
DBGL1(L1_ERROR, "isicintr", ("WARNING: unit %d, No IRQ from HSCX/ISAC!\n", sc->sc_unit));
|
|
#ifdef ELSA_QS1ISA
|
|
}
|
|
#endif
|
|
#endif /* !AMIGA && !ATARI */
|
|
|
|
#endif /* NOTDEF */
|
|
|
|
HSCX_WRITE(0, H_MASK, 0xff);
|
|
ISAC_WRITE(I_MASK, 0xff);
|
|
HSCX_WRITE(1, H_MASK, 0xff);
|
|
|
|
#ifdef ELSA_QS1ISA
|
|
DELAY(80);
|
|
|
|
if(sc->sc_cardtyp == CARD_TYPEP_ELSAQS1ISA)
|
|
if (sc->clearirq)
|
|
{
|
|
sc->clearirq(sc);
|
|
}
|
|
#else
|
|
DELAY(100);
|
|
#endif
|
|
|
|
HSCX_WRITE(0, H_MASK, HSCX_A_IMASK);
|
|
ISAC_WRITE(I_MASK, ISAC_IMASK);
|
|
HSCX_WRITE(1, H_MASK, HSCX_B_IMASK);
|
|
#ifndef __FreeBSD__
|
|
return(was_hscx_irq || was_isac_irq);
|
|
#endif
|
|
}
|
|
else /* IPAC interrupt routine */
|
|
{
|
|
register u_char ipac_irq_stat;
|
|
register u_char was_ipac_irq = 0;
|
|
|
|
for(;;)
|
|
{
|
|
/* get global irq status */
|
|
|
|
ipac_irq_stat = (IPAC_READ(IPAC_ISTA)) & 0x3f;
|
|
|
|
/* check hscx a */
|
|
|
|
if(ipac_irq_stat & (IPAC_ISTA_ICA | IPAC_ISTA_EXA))
|
|
{
|
|
/* HSCX A interrupt */
|
|
isic_hscx_irq(sc, HSCX_READ(HSCX_CH_A, H_ISTA),
|
|
HSCX_CH_A,
|
|
ipac_irq_stat & IPAC_ISTA_EXA);
|
|
was_ipac_irq = 1;
|
|
}
|
|
if(ipac_irq_stat & (IPAC_ISTA_ICB | IPAC_ISTA_EXB))
|
|
{
|
|
/* HSCX B interrupt */
|
|
isic_hscx_irq(sc, HSCX_READ(HSCX_CH_B, H_ISTA),
|
|
HSCX_CH_B,
|
|
ipac_irq_stat & IPAC_ISTA_EXB);
|
|
was_ipac_irq = 1;
|
|
}
|
|
if(ipac_irq_stat & IPAC_ISTA_ICD)
|
|
{
|
|
/* ISAC interrupt */
|
|
isic_isac_irq(sc, ISAC_READ(I_ISTA));
|
|
was_ipac_irq = 1;
|
|
}
|
|
if(ipac_irq_stat & IPAC_ISTA_EXD)
|
|
{
|
|
/* force ISAC interrupt handling */
|
|
isic_isac_irq(sc, ISAC_ISTA_EXI);
|
|
was_ipac_irq = 1;
|
|
}
|
|
|
|
/* do as long as there are pending irqs in the chip */
|
|
if(!ipac_irq_stat)
|
|
break;
|
|
}
|
|
#ifdef NOTDEF
|
|
if(was_ipac_irq == 0)
|
|
DBGL1(L1_ERROR, "isicintr", ("WARNING: unit %d, No IRQ from IPAC!\n", sc->sc_unit));
|
|
#endif
|
|
IPAC_WRITE(IPAC_MASK, 0xff);
|
|
DELAY(50);
|
|
IPAC_WRITE(IPAC_MASK, 0xc0);
|
|
|
|
#ifndef __FreeBSD__
|
|
return(was_ipac_irq);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* isic_settrace
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
isic_settrace(int unit, int val)
|
|
{
|
|
#ifdef __FreeBSD__
|
|
struct isic_softc *sc = &isic_sc[unit];
|
|
#else
|
|
struct isic_softc *sc = isic_find_sc(unit);
|
|
#endif
|
|
sc->sc_trace = val;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* isic_gettrace
|
|
*---------------------------------------------------------------------------*/
|
|
int
|
|
isic_gettrace(int unit)
|
|
{
|
|
#ifdef __FreeBSD__
|
|
struct isic_softc *sc = &isic_sc[unit];
|
|
#else
|
|
struct isic_softc *sc = isic_find_sc(unit);
|
|
#endif
|
|
return(sc->sc_trace);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* isic_recovery - try to recover from irq lockup
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
isic_recover(struct isic_softc *sc)
|
|
{
|
|
u_char byte;
|
|
|
|
/* get hscx irq status from hscx b ista */
|
|
|
|
byte = HSCX_READ(HSCX_CH_B, H_ISTA);
|
|
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX B: ISTA = 0x%x\n", byte));
|
|
|
|
if(byte & HSCX_ISTA_ICA)
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX A: ISTA = 0x%x\n", (u_char)HSCX_READ(HSCX_CH_A, H_ISTA)));
|
|
|
|
if(byte & HSCX_ISTA_EXB)
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX B: EXIR = 0x%x\n", (u_char)HSCX_READ(HSCX_CH_B, H_EXIR)));
|
|
|
|
if(byte & HSCX_ISTA_EXA)
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX A: EXIR = 0x%x\n", (u_char)HSCX_READ(HSCX_CH_A, H_EXIR)));
|
|
|
|
/* get isac irq status */
|
|
|
|
byte = ISAC_READ(I_ISTA);
|
|
|
|
DBGL1(L1_ERROR, "isic_recover", (" ISAC: ISTA = 0x%x\n", byte));
|
|
|
|
if(byte & ISAC_ISTA_EXI)
|
|
DBGL1(L1_ERROR, "isic_recover", (" ISAC: EXIR = 0x%x\n", (u_char)ISAC_READ(I_EXIR)));
|
|
|
|
if(byte & ISAC_ISTA_CISQ)
|
|
{
|
|
byte = ISAC_READ(I_CIRR);
|
|
|
|
DBGL1(L1_ERROR, "isic_recover", (" ISAC: CISQ = 0x%x\n", byte));
|
|
|
|
if(byte & ISAC_CIRR_SQC)
|
|
DBGL1(L1_ERROR, "isic_recover", (" ISAC: SQRR = 0x%x\n", (u_char)ISAC_READ(I_SQRR)));
|
|
}
|
|
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX B: IMASK = 0x%x\n", HSCX_B_IMASK));
|
|
DBGL1(L1_ERROR, "isic_recover", ("HSCX A: IMASK = 0x%x\n", HSCX_A_IMASK));
|
|
|
|
HSCX_WRITE(0, H_MASK, 0xff);
|
|
HSCX_WRITE(1, H_MASK, 0xff);
|
|
DELAY(100);
|
|
HSCX_WRITE(0, H_MASK, HSCX_A_IMASK);
|
|
HSCX_WRITE(1, H_MASK, HSCX_B_IMASK);
|
|
DELAY(100);
|
|
|
|
DBGL1(L1_ERROR, "isic_recover", (" ISAC: IMASK = 0x%x\n", ISAC_IMASK));
|
|
|
|
ISAC_WRITE(I_MASK, 0xff);
|
|
DELAY(100);
|
|
ISAC_WRITE(I_MASK, ISAC_IMASK);
|
|
}
|
|
|
|
#endif /* NISIC > 0 */
|
|
|