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/*
* Copyright (c) 1994 Stefan Grefen. 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 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.
*
* $Id: pcmcia_isa.c,v 1.1 1996/01/16 20:13:01 hvozda Exp $
*/
/* TODO add modload support and loadable lists of devices */
/* How to do cards with more than one function (modem/ethernet ..) */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <dev/pcmcia/pcmcia.h>
#include <dev/pcmcia/pcmciabus.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/i8042reg.h>
#include <i386/isa/isa_machdep.h> /* XXX USES ISA HOLE DIRECTLY */
#ifdef IBM_WD
#define PCMCIA_ISA_DEBUG
#endif
static int pcmcia_isa_init __P((struct device *, struct cfdata *,
void *, struct pcmcia_adapter *, int));
static int pcmcia_isa_search __P((struct device *, void *, cfprint_t));
static int pcmcia_isa_probe __P((struct device *, void *,
void *, struct pcmcia_link *));
static int pcmcia_isa_config __P((struct pcmcia_link *, struct device *,
struct pcmcia_conf *, struct cfdata *));
static int pcmcia_isa_unconfig __P((struct pcmcia_link *));
struct pcmciabus_link pcmcia_isa_link = {
pcmcia_isa_config,
pcmcia_isa_unconfig,
pcmcia_isa_probe,
pcmcia_isa_search,
pcmcia_isa_init
};
/* copy out the addr and length from machine specific attach struct */
static int
pcmcia_isa_init(parent, cf, aux, pca, flag)
struct device *parent;
struct cfdata *cf;
void *aux;
struct pcmcia_adapter *pca;
int flag;
{
struct isa_attach_args *ia = aux;
#ifdef PCMCIA_ISA_DEBUG
if (parent != NULL)
printf("PARENT %s\n", parent->dv_xname);
#endif
if (flag) { /* attach */
pca->scratch_mem = (caddr_t) ISA_HOLE_VADDR(ia->ia_maddr);
pca->scratch_memsiz = ia->ia_msize;
}
ia->ia_iosize = 0;
return 1;
}
/* probe and attach a device, the has to be configured already */
static int
pcmcia_isa_probe(parent, match, aux, pc_link)
struct device *parent;
void *match;
void *aux;
struct pcmcia_link *pc_link;
{
struct device *dev = match;
struct cfdata *cf = aux;
struct isa_attach_args ia;
struct pcmciadevs *pcs = pc_link->device;
int (*probe) () = (pcs != NULL) ? pcs->dev->pcmcia_probe : NULL;
ia.ia_iobase = cf->cf_loc[0];
ia.ia_iosize = 0x666;
ia.ia_maddr = cf->cf_loc[2];
ia.ia_msize = cf->cf_loc[3];
ia.ia_irq = cf->cf_loc[4];
ia.ia_drq = cf->cf_loc[5];
if (probe == NULL)
probe = cf->cf_driver->cd_match;
#ifdef PCMCIA_ISA_DEBUG
printf("pcmcia probe %x %x %x\n", ia.ia_iobase, ia.ia_irq, probe);
printf("parentname = %s\n", parent->dv_xname);
printf("devname = %s\n", dev->dv_xname);
printf("driver name = %s\n", cf->cf_driver->cd_name);
#endif
if ((*probe) (parent, dev, &ia, pc_link) > 0) {
extern isaprint();
config_attach(parent, dev, &ia, isaprint);
#ifdef PCMCIA_ISA_DEBUG
printf("biomask %x netmask %x ttymask %x\n",
(u_short) imask[IPL_BIO], (u_short) imask[IPL_NET],
(u_short) imask[IPL_TTY]);
#endif
return 1;
}
else
free(dev, M_DEVBUF);
return 0;
}
/*
* Modify a pcmcia_conf struct to match the config entry. Pc_cf was filled
* with config data from the card and may be modified before and after the
* call to pcmcia_isa_config. Unless the FIXED_WIN flag is set we assume
* contiguous windows and shift according to the offset for the first not
* fixed window
*/
static int
pcmcia_isa_config(pc_link, self, pc_cf, cf)
struct pcmcia_link *pc_link;
struct device *self;
struct pcmcia_conf *pc_cf;
struct cfdata *cf;
{
struct isa_attach_args ia;
ia.ia_iobase = cf->cf_loc[0];
ia.ia_iosize = 0x666;
ia.ia_maddr = cf->cf_loc[2];
ia.ia_msize = cf->cf_loc[3];
ia.ia_irq = cf->cf_loc[4];
ia.ia_drq = cf->cf_loc[5];
#ifdef PCMCIA_ISA_DEBUG
printf("pcmcia_isa_config iobase=%x maddr=%x msize=%x irq=%x drq=%x\n",
ia.ia_iobase, ISA_HOLE_VADDR(ia.ia_maddr), ia.ia_msize,
ia.ia_irq, ia.ia_drq);
#endif
if (ia.ia_irq != IRQUNK) {
int irq = 1 << ia.ia_irq;
/*
* This is tricky irq 9 must match irq 2 in a device mask and
* configured irq 9 must match irq 2
*/
#ifdef PCMCIA_ISA_DEBUG
printf("pcmcia_isa_config irq=%x num=%x mask=%x and=%x\n", irq,
1 << pc_cf->irq_num, pc_cf->irq_mask,
irq & pc_cf->irq_mask);
#endif
if (irq != (1 << pc_cf->irq_num) &&
!(irq == (1 << 9) && pc_cf->irq_num == 2)) {
if (irq == (1 << 9) || irq == (1 << 2))
irq = (1 << 9) | (1 << 2);
if ((irq & pc_cf->irq_mask) == 0) {
printf("irq %d mask %x\n", ia.ia_irq,
pc_cf->irq_mask);
return ENODEV;
}
/* 2 is 9 is 2 ... */
irq&=~(1 << 2);
cf->cf_loc[4] = pc_cf->irq_num = ffs(irq) - 1;
#ifdef PCMCIA_ISA_DEBUG
printf("pcmcia_isa_config modify num=%x\n",
pc_cf->irq_num);
#endif
}
}
if (ia.ia_iobase != IOBASEUNK) {
int i;
int offs = 0;
if (pc_cf->iowin == 0)
return 0;
for (i = 0; i < pc_cf->iowin; i++) {
if (pc_cf->io[i].flags & PCMCIA_FIXED_WIN)
continue;
if (offs == 0) {
if (pc_cf->io[i].start != ia.ia_iobase) {
offs = ia.ia_iobase -
pc_cf->io[i].start;
} else
break;
}
pc_cf->io[i].start += offs;
}
} else
pc_cf->iowin = 0;
if (ia.ia_maddr != MADDRUNK && ia.ia_msize) {
int i;
unsigned long offs = 0;
int mlen = ia.ia_msize;
int maddr = (int) ISA_HOLE_VADDR(ia.ia_maddr);
if (pc_cf->memwin == 0)
return ENODEV;
#ifdef PCMCIA_ISA_DEBUG
printf("Doing ia=%x ma=%x ms=%d\n", ia.ia_maddr,
maddr, ia.ia_msize);
#endif
for (i = 0; i < pc_cf->memwin && mlen > 0; i++) {
#ifdef PCMCIA_ISA_DEBUG
printf("Doing i=%d st=%x len=%d, flags=%x offs=%d mlen=%d\n",
i, pc_cf->mem[i].start, pc_cf->mem[i].len,
pc_cf->mem[i].flags, offs, mlen);
#endif
if (pc_cf->mem[i].flags & PCMCIA_FIXED_WIN)
continue;
if (offs == 0) {
if (pc_cf->mem[i].start != maddr) {
offs = maddr - pc_cf->mem[i].start;
} else
break;
}
mlen -= pc_cf->mem[i].len;
if (mlen < 0)
pc_cf->mem[i].len += mlen;
pc_cf->mem[i].start += offs;
}
} else
pc_cf->memwin = 0;
return 0;
}
static int
pcmcia_isa_unconfig(pc_link)
struct pcmcia_link *pc_link;
{
if (pc_link && pc_link->intr > 0) {
/* THIS IS A GUESS ... TODO check all possible drivers */
struct softc {
struct device sc_dev;
void *sc_ih;
} *sc = pc_link->devp;
if (sc)
isa_intr_disestablish(sc->sc_ih);
}
return 0;
}
/* Searches for for configured devices on the pcmciabus */
static int
pcmcia_isa_search(parent, aux, print)
struct device *parent;
void *aux;
cfprint_t print;
{
static char *msgs[3] = {"", " not configured\n", " unsupported\n"};
#ifdef PCMCIA_ISA_DEBUG
printf("pcmcia_isa_search\n");
#endif
if (config_search(pcmcia_configure, parent, aux) != NULL)
return 1;
if (print) {
int i;
i = (*print) (aux, parent->dv_xname);
printf(msgs[i]);
}
return 0;
}
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