/* $NetBSD: gvpio.c,v 1.22 2021/08/07 16:18:41 thorpej Exp $ */
/*
* Copyright (c) 1997 Ignatios Souvatzis
* 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 ``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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gvpio.c,v 1.22 2021/08/07 16:18:41 thorpej Exp $");
/*
* GVP I/O Extender
*/
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/param.h>
#include <sys/bus.h>
#include <machine/intr.h>
#include <amiga/include/cpu.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/drcustom.h>
#include <amiga/dev/supio.h>
#include <amiga/dev/zbusvar.h>
#include <amiga/dev/gvpbusvar.h>
struct gvpio_softc {
struct bus_space_tag sc_bst;
void *sc_cntr;
LIST_HEAD(, gvpcom_int_hdl) sc_comhdls;
struct isr sc_comisr;
};
int gvpiomatch(device_t, cfdata_t, void *);
void gvpioattach(device_t, device_t, void *);
int gvpioprint(void *, const char *);
int gvp_com_intr(void *);
void gvp_com_intr_establish(device_t, struct gvpcom_int_hdl *);
CFATTACH_DECL_NEW(gvpio, sizeof(struct gvpio_softc),
gvpiomatch, gvpioattach, NULL, NULL);
int
gvpiomatch(device_t parent, cfdata_t cf, void *aux)
{
struct gvpbus_args *gap;
gap = aux;
if (gap->flags & GVP_IO)
return (1);
return (0);
}
struct gvpio_devs {
char *name;
int off;
int arg;
int ipl;
} gvpiodevs[] = {
{ "com", 0x0b0, 115200 * 16 * 4, 6 },
{ "com", 0x130, 115200 * 16 * 4, 6 },
{ "lpt", 0x1b0, 0, 2 },
{ 0 }
};
void
gvpioattach(device_t parent, device_t self, void *aux)
{
struct gvpio_softc *giosc;
struct gvpio_devs *giosd;
struct gvpbus_args *gap;
struct supio_attach_args supa;
volatile void *gbase;
#ifdef __m68k__
u_int16_t needpsl;
#endif
giosc = device_private(self);
gap = aux;
if (parent)
printf("\n");
gbase = gap->zargs.va;
giosc->sc_cntr = &gbase[0x41];
giosc->sc_bst.base = (u_long)gbase + 1;
giosc->sc_bst.absm = &amiga_bus_stride_2;
LIST_INIT(&giosc->sc_comhdls);
giosd = gvpiodevs;
supa.supio_iot = &giosc->sc_bst;
gbase[0x041] = 0;
gbase[0x161 + 1*2] = 0;
gbase[0x261 + 1*2] = 0;
gbase[0x361 + 2*2] = 0;
gbase[0x461] = 0xd0;
while (giosd->name) {
supa.supio_name = giosd->name;
supa.supio_iobase = giosd->off;
supa.supio_arg = giosd->arg;
supa.supio_ipl = giosd->ipl;
config_found(self, &supa, gvpioprint, CFARGS_NONE); /* XXX */
++giosd;
}
if (giosc->sc_comhdls.lh_first) {
#ifdef __m68k__
/* XXX this should be really in the interrupt stuff */
needpsl = PSL_S|PSL_IPL6;
if (ipl2spl_table[IPL_SERIAL] < needpsl) {
printf("%s: raising ipl2spl_table[IPL_SERIAL] "
"from 0x%x to 0x%x\n",
device_xname(self), ipl2spl_table[IPL_SERIAL],
needpsl);
ipl2spl_table[IPL_SERIAL] = needpsl;
}
#endif
giosc->sc_comisr.isr_intr = gvp_com_intr;
giosc->sc_comisr.isr_arg = giosc;
giosc->sc_comisr.isr_ipl = 6;
add_isr(&giosc->sc_comisr);
}
gbase[0x041] = 0x08;
}
int
gvpioprint(void *aux, const char *pnp)
{
struct supio_attach_args *supa;
supa = aux;
if (pnp == NULL)
return(QUIET);
aprint_normal("%s at %s port 0x%02x ipl %d",
supa->supio_name, pnp, supa->supio_iobase, supa->supio_ipl);
return(UNCONF);
}
void
gvp_com_intr_establish(device_t self, struct gvpcom_int_hdl *p)
{
struct gvpio_softc *sc;
sc = device_private(self);
LIST_INSERT_HEAD(&sc->sc_comhdls, p, next);
}
int
gvp_com_intr(void *p)
{
struct gvpio_softc *sc;
struct gvpcom_int_hdl *np;
volatile void *cntr;
sc = (struct gvpio_softc *)p;
cntr = sc->sc_cntr;
if (!(*cntr & 0x2))
return (0);
*cntr &= ~0xa;
for (np = sc->sc_comhdls.lh_first; np != NULL;
np = np->next.le_next) {
(*np->f)(np->p);
}
*cntr |= 0x8;
return (1);
}
