245 lines
6.4 KiB
C
245 lines
6.4 KiB
C
/* $NetBSD: lasi.c,v 1.1 2014/02/24 07:23:42 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) 1998-2003 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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: lasi.c,v 1.1 2014/02/24 07:23:42 skrll Exp $");
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#undef LASIDEBUG
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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 <sys/bus.h>
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#include <machine/iomod.h>
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#include <machine/autoconf.h>
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#include <hppa/dev/cpudevs.h>
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#include <hppa/gsc/gscbusvar.h>
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struct lasi_hwr {
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uint32_t lasi_power;
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#define LASI_BLINK 0x01
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#define LASI_OFF 0x02
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uint32_t lasi_error;
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uint32_t lasi_version;
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uint32_t lasi_reset;
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uint32_t lasi_arbmask;
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};
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struct lasi_trs {
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uint32_t lasi_irr; /* int requset register */
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uint32_t lasi_imr; /* int mask register */
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uint32_t lasi_ipr; /* int pending register */
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uint32_t lasi_icr; /* int command? register */
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uint32_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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device_t sc_dev;
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struct hppa_interrupt_register sc_ir;
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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(device_t, cfdata_t, void *);
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void lasiattach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(lasi, sizeof(struct lasi_softc),
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lasimatch, lasiattach, NULL, NULL);
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extern struct cfdriver lasi_cd;
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void lasi_cold_hook(int);
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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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/*
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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 = HPPACF_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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pdcproc_lan_station_id(ga->ga_ether_address,
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sizeof(ga->ga_ether_address), ga->ga_hpa);
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}
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}
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int
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lasimatch(device_t parent, cfdata_t 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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/*
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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(device_t parent, device_t self, void *aux)
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{
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struct confargs *ca = aux;
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struct lasi_softc *sc = device_private(self);
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struct gsc_attach_args ga;
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struct cpu_info *ci = &cpus[0];
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bus_space_handle_t ioh;
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int s;
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sc->sc_dev = self;
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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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aprint_error(": can't map interrupt registers\n");
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return;
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}
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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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aprint_error(": can't map misc registers\n");
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return;
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}
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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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aprint_normal(": 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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ca->ca_irq = hppa_intr_allocate_bit(&ci->ci_ir, ca->ca_irq);
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if (ca->ca_irq == HPPACF_IRQ_UNDEF) {
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aprint_error(": can't allocate interrupt\n");
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return;
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}
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/* interrupts guts */
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s = splhigh();
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sc->sc_trs->lasi_iar = ci->ci_hpa | (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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(void)sc->sc_trs->lasi_irr;
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sc->sc_trs->lasi_imr = 0;
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/* Establish the interrupt register. */
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hppa_interrupt_register_establish(ci, &sc->sc_ir);
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sc->sc_ir.ir_name = device_xname(self);
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sc->sc_ir.ir_mask = &sc->sc_trs->lasi_imr;
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sc->sc_ir.ir_req = &sc->sc_trs->lasi_irr;
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splx(s);
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/* Attach the GSC bus. */
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ga.ga_ca = *ca; /* clone from us */
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if (strcmp(device_xname(parent), "mainbus0") == 0) {
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ga.ga_dp.dp_bc[0] = ga.ga_dp.dp_bc[1];
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ga.ga_dp.dp_bc[1] = ga.ga_dp.dp_bc[2];
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ga.ga_dp.dp_bc[2] = ga.ga_dp.dp_bc[3];
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ga.ga_dp.dp_bc[3] = ga.ga_dp.dp_bc[4];
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ga.ga_dp.dp_bc[4] = ga.ga_dp.dp_bc[5];
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ga.ga_dp.dp_bc[5] = ga.ga_dp.dp_mod;
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ga.ga_dp.dp_mod = 0;
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}
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ga.ga_name = "gsc";
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ga.ga_ir = &sc->sc_ir;
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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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/* could be already set by power(4) */
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if (!cold_hook)
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cold_hook = lasi_cold_hook;
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}
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void
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lasi_cold_hook(int on)
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{
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struct lasi_softc *sc = device_private(lasi_cd.cd_devs[0]);
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if (!sc)
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return;
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switch (on) {
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case HPPA_COLD_COLD:
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sc->sc_hw->lasi_power = LASI_BLINK;
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break;
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case HPPA_COLD_HOT:
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sc->sc_hw->lasi_power = 0;
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break;
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case HPPA_COLD_OFF:
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sc->sc_hw->lasi_power = LASI_OFF;
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break;
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}
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}
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