1 /* $NetBSD: pckbc_elb.c,v 1.12 2021/03/05 06:17:02 rin Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Juergen Hannken-Illjes. 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: pckbc_elb.c,v 1.12 2021/03/05 06:17:02 rin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/conf.h> 37 #include <sys/device.h> 38 #include <sys/systm.h> 39 #include <sys/kmem.h> 40 41 #include <sys/bus.h> 42 43 #include <dev/ic/i8042reg.h> 44 #include <dev/ic/pckbcvar.h> 45 46 #include <evbppc/explora/dev/elbvar.h> 47 48 struct pckbc_elb_softc { 49 struct pckbc_softc sc_pckbc; 50 int sc_irq; 51 }; 52 53 static int pckbc_elb_probe(device_t, cfdata_t, void *); 54 static void pckbc_elb_attach(device_t, device_t, void *); 55 static void pckbc_elb_intr_establish(struct pckbc_softc *, pckbc_slot_t); 56 57 CFATTACH_DECL_NEW(pckbc_elb, sizeof(struct pckbc_elb_softc), 58 pckbc_elb_probe, pckbc_elb_attach, NULL, NULL); 59 60 int 61 pckbc_elb_probe(device_t parent, cfdata_t cf, void *aux) 62 { 63 struct elb_attach_args *oaa = aux; 64 65 if (strcmp(oaa->elb_name, cf->cf_name) != 0) 66 return 0; 67 68 return (1); 69 } 70 71 void 72 pckbc_elb_attach(device_t parent, device_t self, void *aux) 73 { 74 struct pckbc_elb_softc *msc = device_private(self); 75 struct pckbc_softc *sc = &msc->sc_pckbc; 76 struct elb_attach_args *eaa = aux; 77 struct pckbc_internal *t; 78 79 sc->sc_dv = self; 80 81 /* 82 * Setup interrupt data. 83 */ 84 msc->sc_irq = eaa->elb_irq; 85 sc->intr_establish = pckbc_elb_intr_establish; 86 87 if (pckbc_is_console(eaa->elb_bt, 88 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base))) { 89 t = &pckbc_consdata; 90 pckbc_console_attached = 1; 91 } else { 92 t = kmem_zalloc(sizeof(struct pckbc_internal), KM_SLEEP); 93 94 t->t_iot = eaa->elb_bt; 95 bus_space_map(eaa->elb_bt, 96 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base), 1, 0, 97 &t->t_ioh_d); 98 bus_space_map(eaa->elb_bt, 99 _BUS_SPACE_UNSTRIDE(eaa->elb_bt, eaa->elb_base2), 1, 0, 100 &t->t_ioh_c); 101 t->t_addr = eaa->elb_base; 102 } 103 104 t->t_sc = sc; 105 sc->id = t; 106 107 aprint_normal("\n"); 108 109 pckbc_attach(sc); 110 } 111 112 static void 113 pckbc_elb_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot) 114 { 115 struct pckbc_elb_softc *msc = (void *)sc; 116 int irq = msc->sc_irq; 117 118 /* 119 * We ignore slot since all slots use the same interrupt. 120 */ 121 122 if (irq >= 0) 123 intr_establish_xname(irq, IST_LEVEL, IPL_TTY, pckbcintr, sc, 124 device_xname(sc->sc_dv)); 125 126 msc->sc_irq = -1; 127 } 128