spkr_pcppi.c revision 1.14
1/* $NetBSD: spkr_pcppi.c,v 1.14 2022/09/25 17:09:36 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 1990 Eric S. Raymond (esr@snark.thyrsus.com) 5 * Copyright (c) 1990 Andrew A. Chernov (ache@astral.msk.su) 6 * Copyright (c) 1990 Lennart Augustsson (lennart@augustsson.net) 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Eric S. Raymond 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36/* 37 * spkr.c -- device driver for console speaker on 80386 38 * 39 * v1.1 by Eric S. Raymond (esr@snark.thyrsus.com) Feb 1990 40 * modified for 386bsd by Andrew A. Chernov <ache@astral.msk.su> 41 * 386bsd only clean version, all SYSV stuff removed 42 * use hz value from param.c 43 */ 44 45#include <sys/cdefs.h> 46__KERNEL_RCSID(0, "$NetBSD: spkr_pcppi.c,v 1.14 2022/09/25 17:09:36 thorpej Exp $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/kernel.h> 51#include <sys/errno.h> 52#include <sys/device.h> 53#include <sys/uio.h> 54#include <sys/proc.h> 55#include <sys/ioctl.h> 56#include <sys/conf.h> 57 58#include <sys/bus.h> 59 60#include <dev/isa/pcppivar.h> 61 62#include <dev/spkrvar.h> 63#include <dev/spkrio.h> 64 65struct spkr_pcppi_softc { 66 struct spkr_softc sc_spkr; 67 pcppi_tag_t sc_pcppicookie; 68 void (*sc_bell_func)(pcppi_tag_t, int, int, int); 69}; 70 71static int spkr_pcppi_probe(device_t, cfdata_t, void *); 72static void spkr_pcppi_attach(device_t, device_t, void *); 73static int spkr_pcppi_detach(device_t, int); 74static int spkr_pcppi_rescan(device_t, const char *, const int *); 75static void spkr_pcppi_childdet(device_t, device_t); 76 77CFATTACH_DECL3_NEW(spkr_pcppi, sizeof(struct spkr_pcppi_softc), 78 spkr_pcppi_probe, spkr_pcppi_attach, spkr_pcppi_detach, NULL, 79 spkr_pcppi_rescan, spkr_pcppi_childdet, 0); 80 81/* emit tone of frequency hz for given number of ticks */ 82static void 83spkr_pcppi_tone(device_t self, u_int xhz, u_int ticks) 84{ 85#ifdef SPKRDEBUG 86 device_printf(self, "%s: %u %u\n", __func__, xhz, ticks); 87#endif /* SPKRDEBUG */ 88 struct spkr_pcppi_softc *sc = device_private(self); 89 (*sc->sc_bell_func)(sc->sc_pcppicookie, xhz, ticks, PCPPI_BELL_SLEEP); 90} 91 92static int 93spkr_pcppi_probe(device_t parent, cfdata_t cf, void *aux) 94{ 95 return 1; 96} 97 98static void 99spkr_pcppi_attach(device_t parent, device_t self, void *aux) 100{ 101 struct pcppi_attach_args *pa = aux; 102 struct spkr_pcppi_softc *sc = device_private(self); 103 104 aprint_naive("\n"); 105 aprint_normal(": PC Speaker\n"); 106 107 sc->sc_pcppicookie = pa->pa_cookie; 108 sc->sc_bell_func = pa->pa_bell_func; 109 spkr_attach(self, spkr_pcppi_tone); 110 if (!pmf_device_register(self, NULL, NULL)) 111 aprint_error_dev(self, "couldn't establish power handler\n"); 112} 113 114static int 115spkr_pcppi_detach(device_t self, int flags) 116{ 117 struct spkr_pcppi_softc *sc = device_private(self); 118 int error; 119 120 if ((error = spkr_detach(self, flags)) != 0) 121 return error; 122 123 sc->sc_pcppicookie = NULL; 124 pmf_device_deregister(self); 125 return 0; 126} 127 128static int 129spkr_pcppi_rescan(device_t self, const char *iattr, const int *locators) 130{ 131 132 return spkr_rescan(self, iattr, locators); 133} 134 135static void 136spkr_pcppi_childdet(device_t self, device_t child) 137{ 138 139 spkr_childdet(self, child); 140} 141