289 lines
7.1 KiB
C
289 lines
7.1 KiB
C
/* $NetBSD: vrpmu.c,v 1.5 2000/01/27 06:28:41 sato Exp $ */
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/*
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* Copyright (c) 1999 M. Warner Losh. All rights reserved.
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* Copyright (c) 1999 PocketBSD Project. 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* 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 <machine/bus.h>
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#include <machine/config_hook.h>
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#include <hpcmips/vr/vripvar.h>
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#include <hpcmips/vr/vrpmuvar.h>
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#include <hpcmips/vr/vrpmureg.h>
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#include "vrbcu.h"
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#if NVRBCU > 0
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#include <hpcmips/vr/bcuvar.h>
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#include <hpcmips/vr/bcureg.h>
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#endif
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#ifdef VRPMUDEBUG
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#define DEBUG_BOOT 0x1 /* boot time */
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#define DEBUG_INTR 0x2 /* intr */
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#ifndef VRPMUDEBUG_CONF
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#define VRPMUDEBUG_CONF 0
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#endif /* VRPMUDEBUG_CONF */
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int vrpmudebug = VRPMUDEBUG_CONF;
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#endif /* VRPMUDEBUG */
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static int vrpmumatch __P((struct device *, struct cfdata *, void *));
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static void vrpmuattach __P((struct device *, struct device *, void *));
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static void vrpmu_write __P((struct vrpmu_softc *, int, unsigned short));
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static unsigned short vrpmu_read __P((struct vrpmu_softc *, int));
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int vrpmu_intr __P((void *));
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static void vrpmu_dump_intr __P((unsigned int, unsigned int));
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static void vrpmu_dump_regs __P((void *));
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struct cfattach vrpmu_ca = {
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sizeof(struct vrpmu_softc), vrpmumatch, vrpmuattach
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};
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static inline void
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vrpmu_write(sc, port, val)
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struct vrpmu_softc *sc;
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int port;
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unsigned short val;
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{
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bus_space_write_2(sc->sc_iot, sc->sc_ioh, port, val);
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}
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static inline unsigned short
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vrpmu_read(sc, port)
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struct vrpmu_softc *sc;
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int port;
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{
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return bus_space_read_2(sc->sc_iot, sc->sc_ioh, port);
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}
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static int
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vrpmumatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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return 1;
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}
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static void
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vrpmuattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct vrpmu_softc *sc = (struct vrpmu_softc *)self;
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struct vrip_attach_args *va = aux;
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bus_space_tag_t iot = va->va_iot;
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bus_space_handle_t ioh;
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if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) {
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printf(": can't map bus space\n");
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return;
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}
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sc->sc_iot = iot;
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sc->sc_ioh = ioh;
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if (!(sc->sc_handler =
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vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY,
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vrpmu_intr, sc))) {
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printf (": can't map interrupt line.\n");
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return;
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}
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printf("\n");
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/* dump current registers */
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vrpmu_dump_regs(sc);
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/* clear interrupt status */
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vrpmu_write(sc, PMUINT_REG_W, PMUINT_ALL);
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vrpmu_write(sc, PMUINT2_REG_W, PMUINT2_ALL);
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}
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/*
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* dump PMU intr status regs
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*/
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void
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vrpmu_dump_intr(intstat1, intstat2)
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unsigned int intstat1, intstat2;
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{
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if (intstat1 & PMUINT_GPIO3)
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printf("vrpmu: GPIO[3] activation\n");
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if (intstat1 & PMUINT_GPIO2)
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printf("vrpmu: GPIO[2] activation\n");
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if (intstat1 & PMUINT_GPIO1)
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printf("vrpmu: GPIO[1] activation\n");
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if (intstat1 & PMUINT_GPIO0)
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printf("vrpmu: GPIO[0] activation\n");
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if (intstat1 & PMUINT_RTC)
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printf("vrpmu: RTC alarm detected\n");
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if (intstat1 & PMUINT_BATT)
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printf("vrpmu: Battery low during activation\n");
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if (intstat1 & PMUINT_TIMOUTRST)
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printf("vrpmu: HAL timer reset\n");
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if (intstat1 & PMUINT_RTCRST)
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printf("vrpmu: RTC reset detected\n");
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if (intstat1 & PMUINT_RSTSWRST)
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printf("vrpmu: RESET switch detected\n");
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if (intstat1 & PMUINT_DMSWRST)
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printf("vrpmu: Deadman's switch detected\n");
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if (intstat1 & PMUINT_BATTINTR)
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printf("vrpmu: Battery low during normal ops\n");
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if (intstat1 & PMUINT_POWERSW)
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printf("vrpmu: POWER switch detected\n");
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if (intstat2 & PMUINT_GPIO12)
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printf("vrpmu: GPIO[12] activation\n");
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if (intstat2 & PMUINT_GPIO11)
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printf("vrpmu: GPIO[11] activation\n");
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if (intstat2 & PMUINT_GPIO10)
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printf("vrpmu: GPIO[10] activation\n");
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if (intstat2 & PMUINT_GPIO9)
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printf("vrpmu: GPIO[9] activation\n");
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}
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/*
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* dump PMU registers
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*
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*/
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void
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vrpmu_dump_regs(arg)
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void *arg;
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{
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struct vrpmu_softc *sc = arg;
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unsigned int intstat1;
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unsigned int intstat2;
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#ifdef VRPMUDEBUG
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unsigned int reg;
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#if NVRBCU > 0
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int cpuid;
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#endif
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#endif /* VRPMUDEBUG */
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intstat1 = vrpmu_read(sc, PMUINT_REG_W);
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intstat2 = vrpmu_read(sc, PMUINT2_REG_W);
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vrpmu_dump_intr(intstat1, intstat2);
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#ifdef VRPMUDEBUG
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if (vrpmudebug&DEBUG_BOOT) {
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/* others? XXXX */
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reg = vrpmu_read(sc, PMUCNT_REG_W);
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printf("vrpmu: cnt 0x%x: ", reg);
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bitdisp16(reg);
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reg = vrpmu_read(sc, PMUCNT2_REG_W);
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printf("vrpmu: cnt2 0x%x: ", reg);
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bitdisp16(reg);
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#if NVRBCU > 0
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cpuid = vrbcu_vrip_getcpuid();
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if (cpuid >= BCUREVID_RID_4111){
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reg = vrpmu_read(sc, PMUWAIT_REG_W);
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printf("vrpmu: wait 0x%x", reg);
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}
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if (cpuid >= BCUREVID_RID_4121){
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reg = vrpmu_read(sc, PMUDIV_REG_W);
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printf(" div 0x%x", reg);
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}
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printf("\n");
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#endif
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}
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#endif /* VRPMUDEBUG */
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}
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/*
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* PMU interrupt handler.
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* XXX
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*
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* In the following interrupt routine we should actually DO something
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* with the knowledge that we've gained. For now we just report it.
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*/
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int
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vrpmu_intr(arg)
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void *arg;
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{
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struct vrpmu_softc *sc = arg;
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unsigned int intstat1;
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unsigned int intstat2;
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intstat1 = vrpmu_read(sc, PMUINT_REG_W);
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/* clear interrupt status */
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vrpmu_write(sc, PMUINT_REG_W, intstat1);
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intstat2 = vrpmu_read(sc, PMUINT2_REG_W);
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/* clear interrupt status */
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vrpmu_write(sc, PMUINT2_REG_W, intstat2);
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#ifdef VRPMUDEBUG
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if (vrpmudebug&DEBUG_INTR)
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vrpmu_dump_intr(intstat1, intstat2);
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#endif /* VRPMUDEBUG */
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if (intstat1 & PMUINT_GPIO3)
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;
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if (intstat1 & PMUINT_GPIO2)
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;
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if (intstat1 & PMUINT_GPIO1)
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;
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if (intstat1 & PMUINT_GPIO0)
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;
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if (intstat1 & PMUINT_RTC)
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;
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if (intstat1 & PMUINT_BATT)
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;
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if (intstat1 & PMUINT_TIMOUTRST)
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;
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if (intstat1 & PMUINT_RTCRST)
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;
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if (intstat1 & PMUINT_RSTSWRST)
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;
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if (intstat1 & PMUINT_DMSWRST)
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;
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if (intstat1 & PMUINT_BATTINTR)
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;
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if (intstat1 & PMUINT_POWERSW)
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config_hook_call(CONFIG_HOOK_BUTTONEVENT,
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CONFIG_HOOK_BUTTONEVENT_POWER,
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(void*)1);
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if (intstat2 & PMUINT_GPIO12)
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;
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if (intstat2 & PMUINT_GPIO11)
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;
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if (intstat2 & PMUINT_GPIO10)
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;
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if (intstat2 & PMUINT_GPIO9)
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;
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return 0;
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}
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