1 /* $NetBSD: hpcin.c,v 1.14 2009/05/12 14:22:39 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: hpcin.c,v 1.14 2009/05/12 14:22:39 cegger Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 39 #include <machine/config_hook.h> 40 #include <sys/bus.h> 41 42 #include <dev/hpc/hpciovar.h> 43 #include <dev/hpc/hpciomanvar.h> 44 45 #include "locators.h" 46 47 int hpcin_match(device_t, cfdata_t, void *); 48 void hpcin_attach(device_t, device_t, void *); 49 int hpcin_intr(void *); 50 51 struct hpcin_softc { 52 struct device sc_dev; 53 struct hpcioman_attach_args sc_hma; 54 hpcio_intr_handle_t sc_ih; 55 config_call_tag sc_ct; 56 }; 57 58 #define sc_hc sc_hma.hma_hc 59 #define sc_intr_mode sc_hma.hma_intr_mode 60 #define sc_type sc_hma.hma_type 61 #define sc_id sc_hma.hma_id 62 #define sc_port sc_hma.hma_port 63 #define sc_initvalue sc_hma.hma_initvalue 64 #define sc_on sc_hma.hma_on 65 #define sc_off sc_hma.hma_off 66 #define sc_connect sc_hma.hma_connect 67 68 CFATTACH_DECL(hpcin, sizeof(struct hpcin_softc), 69 hpcin_match, hpcin_attach, NULL, NULL); 70 71 int 72 hpcin_match(device_t parent, cfdata_t cf, void *aux) 73 { 74 return (1); 75 } 76 77 void 78 hpcin_attach(device_t parent, device_t self, void *aux) 79 { 80 struct hpcioman_attach_args *hma = aux; 81 struct hpcin_softc *sc = device_private(self); 82 83 if (hma->hma_hc == NULL || 84 hma->hma_type == HPCIOMANCF_EVTYPE_DEFAULT || 85 hma->hma_id == HPCIOMANCF_ID_DEFAULT || 86 hma->hma_port == HPCIOMANCF_PORT_DEFAULT) { 87 printf(": ignored\n"); 88 return; 89 } 90 printf("\n"); 91 92 sc->sc_hma = *hma; /* structure assignment */ 93 94 /* install interrupt handler */ 95 sc->sc_ih = hpcio_intr_establish(sc->sc_hc, sc->sc_port, 96 sc->sc_intr_mode, hpcin_intr, sc); 97 if (sc->sc_ih == NULL) 98 printf("hpcin: can't install interrupt handler\n"); 99 100 if (sc->sc_connect) 101 sc->sc_ct = config_connect(sc->sc_type, sc->sc_id); 102 } 103 104 int 105 hpcin_intr(void *arg) 106 { 107 struct hpcin_softc *sc = arg; 108 int on; 109 110 on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on); 111 if (sc->sc_connect) { 112 config_connected_call(sc->sc_ct, (void *)on); 113 } else { 114 printf("%s: type=%d, id=%d\n", __func__, 115 sc->sc_type, sc->sc_id); 116 config_hook_call(sc->sc_type, sc->sc_id, (void *)on); 117 printf("done.\n"); 118 } 119 120 return (0); 121 } 122