NetBSD-5.0.2/sys/arch/hp700/dev/lasi.c
/* $NetBSD: lasi.c,v 1.11 2008/03/29 15:59:26 skrll Exp $ */
/* $OpenBSD: lasi.c,v 1.4 2001/06/09 03:57:19 mickey Exp $ */
/*
* Copyright (c) 1998,1999 Michael Shalayeff
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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: lasi.c,v 1.11 2008/03/29 15:59:26 skrll Exp $");
#undef LASIDEBUG
#include "opt_power_switch.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <machine/bus.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>
#include <hp700/dev/cpudevs.h>
#include <hp700/gsc/gscbusvar.h>
#include <hp700/hp700/power.h>
struct lasi_hwr {
u_int32_t lasi_power;
u_int32_t lasi_error;
u_int32_t lasi_version;
u_int32_t lasi_reset;
u_int32_t lasi_arbmask;
};
struct lasi_trs {
u_int32_t lasi_irr; /* int requset register */
u_int32_t lasi_imr; /* int mask register */
u_int32_t lasi_ipr; /* int pending register */
u_int32_t lasi_icr; /* int command? register */
u_int32_t lasi_iar; /* int acquire? register */
};
#define LASI_BANK_SZ 0x200000
#define LASI_REG_INT 0x100000
#define LASI_REG_MISC 0x10c000
struct lasi_softc {
struct device sc_dev;
struct hp700_int_reg sc_int_reg;
struct lasi_hwr volatile *sc_hw;
struct lasi_trs volatile *sc_trs;
};
int lasimatch(struct device *, struct cfdata *, void *);
void lasiattach(struct device *, struct device *, void *);
CFATTACH_DECL(lasi, sizeof(struct lasi_softc),
lasimatch, lasiattach, NULL, NULL);
/*
* Before a module is matched, this fixes up its gsc_attach_args.
*/
static void lasi_fix_args(void *, struct gsc_attach_args *);
static void
lasi_fix_args(void *_sc, struct gsc_attach_args *ga)
{
struct lasi_softc *sc = _sc;
hppa_hpa_t module_offset;
struct pdc_lan_station_id pdc_mac PDC_ALIGNMENT;
/*
* Determine this module's interrupt bit.
*/
module_offset = ga->ga_hpa - (hppa_hpa_t) sc->sc_trs;
ga->ga_irq = HP700CF_IRQ_UNDEF;
#define LASI_IRQ(off, irq) if (module_offset == off) ga->ga_irq = irq
LASI_IRQ(0x2000, 7); /* lpt */
LASI_IRQ(0x4000, 13); /* harmony */
LASI_IRQ(0x4040, 16); /* harmony telephone0 */
LASI_IRQ(0x4060, 17); /* harmony telephone1 */
LASI_IRQ(0x5000, 5); /* com */
LASI_IRQ(0x6000, 9); /* osiop */
LASI_IRQ(0x7000, 8); /* ie */
LASI_IRQ(0x8000, 26); /* pckbc */
LASI_IRQ(0xa000, 20); /* fdc */
#undef LASI_IRQ
/*
* If this is the Ethernet adapter, get its Ethernet address.
*/
if (module_offset == 0x7000) {
if (pdc_call((iodcio_t)pdc, 0, PDC_LAN_STATION_ID,
PDC_LAN_STATION_ID_READ, &pdc_mac, ga->ga_hpa) == 0)
memcpy(ga->ga_ether_address, pdc_mac.addr,
sizeof(ga->ga_ether_address));
}
}
int
lasimatch(struct device *parent, struct cfdata *cf, void *aux)
{
struct confargs *ca = aux;
if (ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
ca->ca_type.iodc_sv_model != HPPA_BHA_LASI)
return 0;
/* Make sure we have an IRQ. */
if (ca->ca_irq == HP700CF_IRQ_UNDEF)
ca->ca_irq = hp700_intr_allocate_bit(&int_reg_cpu);
/*
* Forcibly mask the HPA down to the start of the LASI
* chip address space.
*/
ca->ca_hpa &= ~(LASI_BANK_SZ - 1);
return 1;
}
void
lasiattach(struct device *parent, struct device *self, void *aux)
{
struct confargs *ca = aux;
struct lasi_softc *sc = (struct lasi_softc *)self;
struct gsc_attach_args ga;
bus_space_handle_t ioh;
int s, in;
/*
* Map the LASI interrupt registers.
*/
if (bus_space_map(ca->ca_iot, ca->ca_hpa + LASI_REG_INT,
sizeof(struct lasi_trs), 0, &ioh))
panic("lasiattach: can't map interrupt registers");
sc->sc_trs = (struct lasi_trs *)ioh;
/*
* Map the LASI miscellaneous registers.
*/
if (bus_space_map(ca->ca_iot, ca->ca_hpa + LASI_REG_MISC,
sizeof(struct lasi_hwr), 0, &ioh))
panic("lasiattach: can't map misc registers");
sc->sc_hw = (struct lasi_hwr *)ioh;
/* XXX should we reset the chip here? */
printf (": rev %d.%d\n", (sc->sc_hw->lasi_version & 0xf0) >> 4,
sc->sc_hw->lasi_version & 0xf);
/* interrupts guts */
s = splhigh();
sc->sc_trs->lasi_iar = cpu_gethpa(0) | (31 - ca->ca_irq);
sc->sc_trs->lasi_icr = 0;
sc->sc_trs->lasi_imr = ~0U;
in = sc->sc_trs->lasi_irr;
sc->sc_trs->lasi_imr = 0;
splx(s);
/* Establish the interrupt register. */
hp700_intr_reg_establish(&sc->sc_int_reg);
sc->sc_int_reg.int_reg_mask = &sc->sc_trs->lasi_imr;
sc->sc_int_reg.int_reg_req = &sc->sc_trs->lasi_irr;
#ifdef POWER_SWITCH
/* Tell power switch handling code about the Power Control Register */
lasi_pwr_sw_reg = &sc->sc_hw->lasi_power;
#endif /* POWER_SWITCH */
/* Attach the GSC bus. */
ga.ga_ca = *ca; /* clone from us */
ga.ga_name = "gsc";
ga.ga_int_reg = &sc->sc_int_reg;
ga.ga_fix_args = lasi_fix_args;
ga.ga_fix_args_cookie = sc;
ga.ga_scsi_target = 7; /* XXX */
config_found(self, &ga, gscprint);
}