150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
/* $NetBSD: panel.c,v 1.1 2009/05/14 01:10:19 macallan Exp $ */
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/*-
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* Copyright (c) 2009 Michael Lorenz
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: panel.c,v 1.1 2009/05/14 01:10:19 macallan Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/kthread.h>
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#include <sys/bus.h>
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#include <dev/sysmon/sysmonvar.h>
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#include <dev/sysmon/sysmon_taskq.h>
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#include <machine/autoconf.h>
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#include <machine/machtype.h>
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#include <sgimips/ioc/iocreg.h>
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#include <sgimips/hpc/hpcvar.h>
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#include <sgimips/hpc/hpcreg.h>
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struct panel_softc {
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device_t sc_dev;
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struct sysmon_pswitch sc_pbutton;
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bus_space_tag_t sc_tag;
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bus_space_handle_t sc_hreg;
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int sc_last, sc_fired;
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};
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static int panel_match(device_t, cfdata_t, void *);
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static void panel_attach(device_t, device_t, void *);
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static int panel_intr(void *);
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static void panel_powerbutton(void *);
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CFATTACH_DECL_NEW(panel, sizeof(struct panel_softc),
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panel_match,
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panel_attach,
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NULL,
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NULL);
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static int
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panel_match(device_t parent, cfdata_t match, void *aux)
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{
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if (mach_type == MACH_SGI_IP22)
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return 1;
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return 0;
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}
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static void
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panel_attach(device_t parent, device_t self, void *aux)
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{
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struct panel_softc *sc;
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struct hpc_attach_args *haa;
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sc = device_private(self);
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sc->sc_dev = self;
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haa = aux;
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sc->sc_tag = haa->ha_st;
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sc->sc_fired = 0;
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aprint_normal("\n");
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if (bus_space_subregion(haa->ha_st, haa->ha_sh, haa->ha_devoff,
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0x1, /* just a single register */
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&sc->sc_hreg)) {
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aprint_error(": unable to map panel register\n");
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return;
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}
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if ((cpu_intr_establish(haa->ha_irq, IPL_BIO,
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panel_intr, sc)) == NULL) {
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printf(": unable to establish interrupt!\n");
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return;
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}
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sc->sc_last = 0;
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sysmon_task_queue_init();
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memset(&sc->sc_pbutton, 0, sizeof(struct sysmon_pswitch));
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sc->sc_pbutton.smpsw_name = device_xname(sc->sc_dev);
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sc->sc_pbutton.smpsw_type = PSWITCH_TYPE_POWER;
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if (sysmon_pswitch_register(&sc->sc_pbutton) != 0)
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aprint_error_dev(sc->sc_dev,
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"unable to register power button with sysmon\n");
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pmf_device_register(self, NULL, NULL);
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}
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static int
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panel_intr(void *cookie)
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{
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struct panel_softc *sc = cookie;
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uint8_t reg;
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reg = bus_space_read_1(sc->sc_tag, sc->sc_hreg, 0);
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bus_space_write_1(sc->sc_tag, sc->sc_hreg, 0,
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IOC_PANEL_VDOWN_IRQ | IOC_PANEL_VUP_IRQ | IOC_PANEL_POWER_IRQ);
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if ((reg & IOC_PANEL_POWER_IRQ) == 0) {
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if (!sc->sc_fired)
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sysmon_task_queue_sched(0, panel_powerbutton, sc);
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sc->sc_fired = 1;
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}
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if (time_second == sc->sc_last)
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return 1;
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sc->sc_last = time_second;
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if ((reg & IOC_PANEL_VDOWN_HOLD) == 0)
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pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
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if ((reg & IOC_PANEL_VUP_HOLD) == 0)
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pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
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return 1;
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}
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static void
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panel_powerbutton(void *cookie)
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{
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struct panel_softc *sc = cookie;
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sysmon_pswitch_event(&sc->sc_pbutton, PSWITCH_EVENT_PRESSED);
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}
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