210 lines
6.2 KiB
C
210 lines
6.2 KiB
C
/* $NetBSD: lasi.c,v 1.11 2008/03/29 15:59:26 skrll Exp $ */
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/* $OpenBSD: lasi.c,v 1.4 2001/06/09 03:57:19 mickey Exp $ */
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/*
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* Copyright (c) 1998,1999 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Michael Shalayeff.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: lasi.c,v 1.11 2008/03/29 15:59:26 skrll Exp $");
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#undef LASIDEBUG
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#include "opt_power_switch.h"
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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/reboot.h>
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#include <machine/bus.h>
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#include <machine/iomod.h>
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#include <machine/autoconf.h>
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#include <hp700/dev/cpudevs.h>
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#include <hp700/gsc/gscbusvar.h>
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#include <hp700/hp700/power.h>
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struct lasi_hwr {
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u_int32_t lasi_power;
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u_int32_t lasi_error;
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u_int32_t lasi_version;
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u_int32_t lasi_reset;
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u_int32_t lasi_arbmask;
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};
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struct lasi_trs {
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u_int32_t lasi_irr; /* int requset register */
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u_int32_t lasi_imr; /* int mask register */
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u_int32_t lasi_ipr; /* int pending register */
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u_int32_t lasi_icr; /* int command? register */
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u_int32_t lasi_iar; /* int acquire? register */
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};
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#define LASI_BANK_SZ 0x200000
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#define LASI_REG_INT 0x100000
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#define LASI_REG_MISC 0x10c000
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struct lasi_softc {
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struct device sc_dev;
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struct hp700_int_reg sc_int_reg;
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struct lasi_hwr volatile *sc_hw;
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struct lasi_trs volatile *sc_trs;
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};
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int lasimatch(struct device *, struct cfdata *, void *);
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void lasiattach(struct device *, struct device *, void *);
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CFATTACH_DECL(lasi, sizeof(struct lasi_softc),
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lasimatch, lasiattach, NULL, NULL);
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/*
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* Before a module is matched, this fixes up its gsc_attach_args.
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*/
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static void lasi_fix_args(void *, struct gsc_attach_args *);
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static void
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lasi_fix_args(void *_sc, struct gsc_attach_args *ga)
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{
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struct lasi_softc *sc = _sc;
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hppa_hpa_t module_offset;
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struct pdc_lan_station_id pdc_mac PDC_ALIGNMENT;
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/*
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* Determine this module's interrupt bit.
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*/
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module_offset = ga->ga_hpa - (hppa_hpa_t) sc->sc_trs;
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ga->ga_irq = HP700CF_IRQ_UNDEF;
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#define LASI_IRQ(off, irq) if (module_offset == off) ga->ga_irq = irq
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LASI_IRQ(0x2000, 7); /* lpt */
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LASI_IRQ(0x4000, 13); /* harmony */
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LASI_IRQ(0x4040, 16); /* harmony telephone0 */
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LASI_IRQ(0x4060, 17); /* harmony telephone1 */
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LASI_IRQ(0x5000, 5); /* com */
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LASI_IRQ(0x6000, 9); /* osiop */
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LASI_IRQ(0x7000, 8); /* ie */
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LASI_IRQ(0x8000, 26); /* pckbc */
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LASI_IRQ(0xa000, 20); /* fdc */
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#undef LASI_IRQ
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/*
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* If this is the Ethernet adapter, get its Ethernet address.
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*/
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if (module_offset == 0x7000) {
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if (pdc_call((iodcio_t)pdc, 0, PDC_LAN_STATION_ID,
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PDC_LAN_STATION_ID_READ, &pdc_mac, ga->ga_hpa) == 0)
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memcpy(ga->ga_ether_address, pdc_mac.addr,
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sizeof(ga->ga_ether_address));
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}
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}
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int
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lasimatch(struct device *parent, struct cfdata *cf, 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_BHA ||
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ca->ca_type.iodc_sv_model != HPPA_BHA_LASI)
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return 0;
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/* Make sure we have an IRQ. */
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if (ca->ca_irq == HP700CF_IRQ_UNDEF)
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ca->ca_irq = hp700_intr_allocate_bit(&int_reg_cpu);
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/*
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* Forcibly mask the HPA down to the start of the LASI
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* chip address space.
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*/
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ca->ca_hpa &= ~(LASI_BANK_SZ - 1);
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return 1;
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}
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void
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lasiattach(struct device *parent, struct device *self, void *aux)
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{
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struct confargs *ca = aux;
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struct lasi_softc *sc = (struct lasi_softc *)self;
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struct gsc_attach_args ga;
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bus_space_handle_t ioh;
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int s, in;
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/*
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* Map the LASI interrupt registers.
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*/
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if (bus_space_map(ca->ca_iot, ca->ca_hpa + LASI_REG_INT,
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sizeof(struct lasi_trs), 0, &ioh))
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panic("lasiattach: can't map interrupt registers");
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sc->sc_trs = (struct lasi_trs *)ioh;
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/*
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* Map the LASI miscellaneous registers.
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*/
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if (bus_space_map(ca->ca_iot, ca->ca_hpa + LASI_REG_MISC,
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sizeof(struct lasi_hwr), 0, &ioh))
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panic("lasiattach: can't map misc registers");
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sc->sc_hw = (struct lasi_hwr *)ioh;
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/* XXX should we reset the chip here? */
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printf (": rev %d.%d\n", (sc->sc_hw->lasi_version & 0xf0) >> 4,
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sc->sc_hw->lasi_version & 0xf);
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/* interrupts guts */
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s = splhigh();
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sc->sc_trs->lasi_iar = cpu_gethpa(0) | (31 - ca->ca_irq);
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sc->sc_trs->lasi_icr = 0;
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sc->sc_trs->lasi_imr = ~0U;
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in = sc->sc_trs->lasi_irr;
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sc->sc_trs->lasi_imr = 0;
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splx(s);
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/* Establish the interrupt register. */
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hp700_intr_reg_establish(&sc->sc_int_reg);
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sc->sc_int_reg.int_reg_mask = &sc->sc_trs->lasi_imr;
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sc->sc_int_reg.int_reg_req = &sc->sc_trs->lasi_irr;
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#ifdef POWER_SWITCH
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/* Tell power switch handling code about the Power Control Register */
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lasi_pwr_sw_reg = &sc->sc_hw->lasi_power;
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#endif /* POWER_SWITCH */
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/* Attach the GSC bus. */
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ga.ga_ca = *ca; /* clone from us */
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ga.ga_name = "gsc";
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ga.ga_int_reg = &sc->sc_int_reg;
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ga.ga_fix_args = lasi_fix_args;
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ga.ga_fix_args_cookie = sc;
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ga.ga_scsi_target = 7; /* XXX */
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config_found(self, &ga, gscprint);
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}
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