295 lines
8.7 KiB
C
295 lines
8.7 KiB
C
/* $NetBSD: cac_eisa.c,v 1.2 2000/10/19 15:31:21 ad Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2000 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Andrew Doran.
|
|
*
|
|
* 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 the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2000 Jonathan Lemon
|
|
* Copyright (c) 1999 by Matthew N. Dodd <winter@jurai.net>
|
|
* 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,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. 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 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.
|
|
*/
|
|
|
|
/*
|
|
* EISA front-end for cac(4) driver.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/eisa/eisavar.h>
|
|
#include <dev/eisa/eisadevs.h>
|
|
|
|
#include <dev/ic/cacreg.h>
|
|
#include <dev/ic/cacvar.h>
|
|
|
|
#define CAC_EISA_SLOT_OFFSET 0x0c88
|
|
#define CAC_EISA_IOSIZE 0x0017
|
|
#define CAC_EISA_IOCONF 0x38
|
|
|
|
static void cac_eisa_attach(struct device *, struct device *, void *);
|
|
static int cac_eisa_match(struct device *, struct cfdata *, void *);
|
|
|
|
static struct cac_ccb *cac_eisa_l0_completed(struct cac_softc *);
|
|
static int cac_eisa_l0_fifo_full(struct cac_softc *);
|
|
static void cac_eisa_l0_intr_enable(struct cac_softc *, int);
|
|
static int cac_eisa_l0_intr_pending(struct cac_softc *);
|
|
static void cac_eisa_l0_submit(struct cac_softc *, struct cac_ccb *);
|
|
|
|
struct cfattach cac_eisa_ca = {
|
|
sizeof(struct cac_softc), cac_eisa_match, cac_eisa_attach
|
|
};
|
|
|
|
static struct cac_linkage cac_eisa_l0 = {
|
|
cac_eisa_l0_completed,
|
|
cac_eisa_l0_fifo_full,
|
|
cac_eisa_l0_intr_enable,
|
|
cac_eisa_l0_intr_pending,
|
|
cac_eisa_l0_submit
|
|
};
|
|
|
|
struct cac_eisa_type {
|
|
const char *ct_prodstr;
|
|
const char *ct_typestr;
|
|
struct cac_linkage *ct_linkage;
|
|
} static cac_eisa_type[] = {
|
|
{ "CPQ4001", "IDA", &cac_eisa_l0 },
|
|
{ "CPQ4002", "IDA-2", &cac_eisa_l0 },
|
|
{ "CPQ4010", "IEAS", &cac_eisa_l0 },
|
|
{ "CPQ4020", "SMART", &cac_eisa_l0 },
|
|
{ "CPQ4030", "SMART-2/E", &cac_l0 },
|
|
};
|
|
|
|
static int
|
|
cac_eisa_match(struct device *parent, struct cfdata *match, void *aux)
|
|
{
|
|
struct eisa_attach_args *ea;
|
|
int i;
|
|
|
|
ea = aux;
|
|
|
|
for (i = 0; i < sizeof(cac_eisa_type) / sizeof(cac_eisa_type[0]); i++)
|
|
if (strcmp(ea->ea_idstring, cac_eisa_type[i].ct_prodstr) == 0)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
cac_eisa_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct eisa_attach_args *ea;
|
|
bus_space_handle_t ioh;
|
|
eisa_chipset_tag_t ec;
|
|
eisa_intr_handle_t ih;
|
|
struct cac_softc *sc;
|
|
bus_space_tag_t iot;
|
|
const char *intrstr;
|
|
int irq, i;
|
|
|
|
ea = aux;
|
|
sc = (struct cac_softc *)self;
|
|
iot = ea->ea_iot;
|
|
ec = ea->ea_ec;
|
|
|
|
if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
|
|
CAC_EISA_SLOT_OFFSET, CAC_EISA_IOSIZE, 0, &ioh)) {
|
|
printf("can't map i/o space\n");
|
|
return;
|
|
}
|
|
|
|
sc->sc_iot = iot;
|
|
sc->sc_ioh = ioh;
|
|
sc->sc_dmat = ea->ea_dmat;
|
|
|
|
/*
|
|
* Map and establish the interrupt.
|
|
*/
|
|
switch (bus_space_read_1(iot, ioh, CAC_EISA_IOCONF) & 0xf0) {
|
|
case 0x20:
|
|
irq = 10;
|
|
break;
|
|
case 0x10:
|
|
irq = 11;
|
|
break;
|
|
case 0x40:
|
|
irq = 14;
|
|
break;
|
|
case 0x80:
|
|
irq = 15;
|
|
break;
|
|
default:
|
|
printf("controller on invalid IRQ\n");
|
|
return;
|
|
}
|
|
|
|
if (eisa_intr_map(ec, irq, &ih)) {
|
|
printf("can't map interrupt (%d)\n", irq);
|
|
return;
|
|
}
|
|
|
|
intrstr = eisa_intr_string(ec, ih);
|
|
if ((sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
|
|
cac_intr, sc)) == NULL) {
|
|
printf("can't establish interrupt");
|
|
if (intrstr != NULL)
|
|
printf(" at %s", intrstr);
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Print board type and attach to the bus-independent code.
|
|
*/
|
|
for (i = 0; i < sizeof(cac_eisa_type) / sizeof(cac_eisa_type[0]); i++)
|
|
if (strcmp(ea->ea_idstring, cac_eisa_type[i].ct_prodstr) == 0)
|
|
break;
|
|
|
|
printf(": Compaq %s\n", cac_eisa_type[i].ct_typestr);
|
|
sc->sc_cl = cac_eisa_type[i].ct_linkage;
|
|
cac_init(sc, intrstr, 0);
|
|
}
|
|
|
|
/*
|
|
* Linkage specific to EISA boards.
|
|
*/
|
|
|
|
static int
|
|
cac_eisa_l0_fifo_full(struct cac_softc *sc)
|
|
{
|
|
|
|
return ((cac_inb(sc, CAC_EISAREG_SYSTEM_DOORBELL) &
|
|
CAC_EISA_CHANNEL_CLEAR) == 0);
|
|
}
|
|
|
|
static void
|
|
cac_eisa_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb)
|
|
{
|
|
u_int16_t size;
|
|
|
|
/*
|
|
* On these boards, `ccb_hdr.size' is actually for control flags.
|
|
* Set it to zero and pass the value by means of an I/O port.
|
|
*/
|
|
size = le16toh(ccb->ccb_hdr.size) << 2;
|
|
ccb->ccb_hdr.size = 0;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, (caddr_t)ccb - sc->sc_ccbs,
|
|
sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
|
|
cac_outb(sc, CAC_EISAREG_SYSTEM_DOORBELL, CAC_EISA_CHANNEL_CLEAR);
|
|
cac_outl(sc, CAC_EISAREG_LIST_ADDR, ccb->ccb_paddr);
|
|
cac_outw(sc, CAC_EISAREG_LIST_LEN, size);
|
|
cac_outb(sc, CAC_EISAREG_LOCAL_DOORBELL, CAC_EISA_CHANNEL_BUSY);
|
|
}
|
|
|
|
static struct cac_ccb *
|
|
cac_eisa_l0_completed(struct cac_softc *sc)
|
|
{
|
|
struct cac_ccb *ccb;
|
|
u_int32_t off;
|
|
u_int8_t status;
|
|
|
|
if ((cac_inb(sc, CAC_EISAREG_SYSTEM_DOORBELL) &
|
|
CAC_EISA_CHANNEL_BUSY) == 0)
|
|
return (NULL);
|
|
|
|
cac_outb(sc, CAC_EISAREG_SYSTEM_DOORBELL, CAC_EISA_CHANNEL_BUSY);
|
|
off = cac_inl(sc, CAC_EISAREG_COMPLETE_ADDR);
|
|
status = cac_inb(sc, CAC_EISAREG_LIST_STATUS);
|
|
cac_outb(sc, CAC_EISAREG_LOCAL_DOORBELL, CAC_EISA_CHANNEL_CLEAR);
|
|
|
|
if (off == 0)
|
|
return (NULL);
|
|
|
|
off = (off & ~3) - sc->sc_ccbs_paddr;
|
|
ccb = (struct cac_ccb *)(sc->sc_ccbs + off);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb),
|
|
BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
|
|
|
|
ccb->ccb_req.error = status;
|
|
return (ccb);
|
|
}
|
|
|
|
static int
|
|
cac_eisa_l0_intr_pending(struct cac_softc *sc)
|
|
{
|
|
|
|
return (cac_inb(sc, CAC_EISAREG_SYSTEM_DOORBELL) &
|
|
CAC_EISA_CHANNEL_BUSY);
|
|
}
|
|
|
|
static void
|
|
cac_eisa_l0_intr_enable(struct cac_softc *sc, int state)
|
|
{
|
|
|
|
if (state) {
|
|
cac_outb(sc, CAC_EISAREG_SYSTEM_DOORBELL,
|
|
~CAC_EISA_CHANNEL_CLEAR);
|
|
cac_outb(sc, CAC_EISAREG_LOCAL_DOORBELL,
|
|
CAC_EISA_CHANNEL_BUSY);
|
|
cac_outb(sc, CAC_EISAREG_INTR_MASK, CAC_INTR_ENABLE);
|
|
cac_outb(sc, CAC_EISAREG_SYSTEM_MASK, CAC_INTR_ENABLE);
|
|
} else
|
|
cac_outb(sc, CAC_EISAREG_SYSTEM_MASK, CAC_INTR_DISABLE);
|
|
}
|