110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/* $NetBSD: com_ssio.c,v 1.3 2011/07/01 18:33:09 dyoung Exp $ */
|
|
|
|
/* $OpenBSD: com_ssio.c,v 1.2 2007/06/24 16:28:39 kettenis Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2007 Mark Kettenis
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/tty.h>
|
|
|
|
#include <sys/bus.h>
|
|
#include <machine/iomod.h>
|
|
|
|
#include <dev/ic/comreg.h>
|
|
#include <dev/ic/comvar.h>
|
|
|
|
#include <hp700/hp700/machdep.h>
|
|
#include <hp700/dev/ssiovar.h>
|
|
|
|
void *ssio_intr_establish(int, int, int (*)(void *), void *,
|
|
const char *);
|
|
|
|
#define COM_SSIO_FREQ 1843200
|
|
|
|
struct com_ssio_softc {
|
|
struct com_softc sc_com; /* real "com" softc */
|
|
void *sc_ih; /* interrupt handler */
|
|
};
|
|
|
|
int com_ssio_match(device_t, cfdata_t, void *);
|
|
void com_ssio_attach(device_t, device_t, void *);
|
|
|
|
CFATTACH_DECL_NEW(com_ssio, sizeof(struct com_ssio_softc), com_ssio_match,
|
|
com_ssio_attach, NULL, NULL);
|
|
|
|
int
|
|
com_ssio_match(device_t parent, cfdata_t match, void *aux)
|
|
{
|
|
cfdata_t cf = match;
|
|
struct ssio_attach_args *saa = aux;
|
|
|
|
if (strcmp(saa->saa_name, "com") != 0)
|
|
return (0);
|
|
|
|
/* Check locators. */
|
|
if (cf->ssiocf_irq != SSIO_UNK_IRQ && cf->ssiocf_irq != saa->saa_irq)
|
|
return (0);
|
|
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
com_ssio_attach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct com_ssio_softc *sc_ssio = device_private(self);
|
|
struct com_softc *sc = &sc_ssio->sc_com;
|
|
struct ssio_attach_args *saa = aux;
|
|
int pagezero_cookie;
|
|
|
|
bus_addr_t iobase;
|
|
bus_space_handle_t ioh;
|
|
bus_space_tag_t iot;
|
|
|
|
sc->sc_dev = self;
|
|
iobase = saa->saa_iobase;
|
|
iot = saa->saa_iot;
|
|
if (bus_space_map(iot, iobase, COM_NPORTS,
|
|
0, &ioh)) {
|
|
aprint_error(": can't map I/O space\n");
|
|
return;
|
|
}
|
|
|
|
/* Test if this is the console. */
|
|
pagezero_cookie = hp700_pagezero_map();
|
|
if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
|
|
PAGE0->mem_cons.pz_hpa == (struct iomod *)ioh) {
|
|
bus_space_unmap(iot, ioh, COM_NPORTS);
|
|
if (comcnattach(iot, iobase, B9600, COM_SSIO_FREQ,
|
|
COM_TYPE_NORMAL,
|
|
(TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8) != 0) {
|
|
aprint_error(": can't comcnattach\n");
|
|
hp700_pagezero_unmap(pagezero_cookie);
|
|
return;
|
|
}
|
|
}
|
|
hp700_pagezero_unmap(pagezero_cookie);
|
|
|
|
sc->sc_frequency = COM_SSIO_FREQ;
|
|
COM_INIT_REGS(sc->sc_regs, iot, ioh, iobase);
|
|
com_attach_subr(sc);
|
|
|
|
sc_ssio->sc_ih = ssio_intr_establish(IPL_TTY, saa->saa_irq,
|
|
comintr, sc, device_xname(self));
|
|
}
|