146 lines
4.3 KiB
C
146 lines
4.3 KiB
C
/* $OpenBSD: com_dino.c,v 1.4 2007/07/15 19:25:49 kettenis Exp $ */
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/*
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* Copyright (c) 2004 Michael Shalayeff
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/tty.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <machine/iomod.h>
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#include <machine/autoconf.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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#include <hp700/dev/cpudevs.h>
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#include <hp700/hp700/machdep.h>
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void *dino_intr_establish(void *sc, int irq, int pri,
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int (*handler)(void *v), void *arg);
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#define COM_DINO_FREQ 7272700
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struct com_dino_softc {
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struct com_softc sc_com; /* real "com" softc */
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void *sc_ih; /* interrupt handler */
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};
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struct com_dino_regs {
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uint8_t reset;
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uint8_t pad0[3];
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uint8_t test;
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#define COM_DINO_PAR_LOOP 0x01
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#define COM_DINO_CLK_SEL 0x02
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uint8_t pad1[3];
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uint32_t iodc;
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uint8_t pad2[0x54];
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uint8_t dither;
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};
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int com_dino_match(device_t, cfdata_t, void *);
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void com_dino_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(com_dino, sizeof(struct com_dino_softc), com_dino_match,
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com_dino_attach, NULL, NULL);
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int
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com_dino_match(device_t parent, cfdata_t match, void *aux)
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{
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struct confargs *ca = aux;
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if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
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ca->ca_type.iodc_sv_model != HPPA_FIO_GRS232)
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return (0);
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return (1);
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/* HOZER comprobe1(ca->ca_iot, ca->ca_hpa + IOMOD_DEVOFFSET); */
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}
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void
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com_dino_attach(device_t parent, device_t self, void *aux)
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{
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void *sc_dino = device_private(parent);
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struct com_dino_softc *sc_comdino = device_private(self);
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struct com_softc *sc = &sc_comdino->sc_com;
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struct confargs *ca = aux;
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struct com_dino_regs *regs = (struct com_dino_regs *)ca->ca_hpa;
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int pagezero_cookie;
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bus_addr_t iobase;
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bus_space_handle_t ioh;
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sc->sc_dev = self;
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iobase = (bus_addr_t)ca->ca_hpa + IOMOD_DEVOFFSET;
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sc->sc_frequency = COM_DINO_FREQ;
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/* Test if this is the console. Compare either HPA or device path. */
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pagezero_cookie = hp700_pagezero_map();
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if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
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PAGE0->mem_cons.pz_hpa == (struct iomod *)ca->ca_hpa) {
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/*
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* This port is the console. In this case we must call
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* comcnattach() and later com_is_console() to initialize
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* everything properly.
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*/
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if (comcnattach(ca->ca_iot, iobase, B9600,
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sc->sc_frequency, COM_TYPE_NORMAL,
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(TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8) != 0) {
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aprint_error(": can't comcnattach\n");
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hp700_pagezero_unmap(pagezero_cookie);
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return;
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}
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}
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hp700_pagezero_unmap(pagezero_cookie);
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/*
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* Get the already initialized console ioh via com_is_console() if
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* this is the console or map the I/O space if this isn't the console.
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*/
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if (!com_is_console(ca->ca_iot, iobase, &ioh) &&
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bus_space_map(ca->ca_iot, iobase, COM_NPORTS, 0, &ioh) != 0) {
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aprint_error(": can't map I/O space\n");
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return;
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}
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COM_INIT_REGS(sc->sc_regs, ca->ca_iot, ioh, iobase);
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/* select clock freq */
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regs->test = COM_DINO_CLK_SEL;
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com_attach_subr(sc);
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ca->ca_irq = 10;
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sc_comdino->sc_ih = dino_intr_establish(sc_dino, ca->ca_irq, IPL_TTY,
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comintr, sc);
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}
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