1 /* $NetBSD: kb_kbc.c,v 1.9 2008/03/29 05:48:33 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Izumi Tsutsui. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: kb_kbc.c,v 1.9 2008/03/29 05:48:33 tsutsui Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 37 #include <machine/bus.h> 38 #include <machine/cpu.h> 39 40 #include <dev/wscons/wsconsio.h> 41 #include <dev/wscons/wskbdvar.h> 42 #include <dev/wscons/wsksymdef.h> 43 #include <dev/wscons/wsksymvar.h> 44 45 46 #include <news68k/dev/kbcreg.h> 47 #include <news68k/dev/kbcvar.h> 48 #include <news68k/dev/kbvar.h> 49 50 #include <news68k/news68k/isr.h> 51 52 static int kb_kbc_match(device_t, cfdata_t, void *); 53 static void kb_kbc_attach(device_t, device_t, void *); 54 static void kb_kbc_init(struct kb_softc *); 55 int kb_kbc_intr(void *); 56 int kb_kbc_cnattach(void); 57 58 CFATTACH_DECL_NEW(kb_kbc, sizeof(struct kb_softc), 59 kb_kbc_match, kb_kbc_attach, NULL, NULL); 60 61 struct console_softc kb_kbc_conssc; 62 63 static int 64 kb_kbc_match(device_t parent, cfdata_t cf, void *aux) 65 { 66 struct kbc_attach_args *ka = aux; 67 68 if (strcmp(ka->ka_name, "kb")) 69 return 0; 70 71 return 1; 72 } 73 74 static void 75 kb_kbc_attach(device_t parent, device_t self, void *aux) 76 { 77 struct kb_softc *sc = device_private(self); 78 struct kbc_attach_args *ka = aux; 79 struct wskbddev_attach_args wsa; 80 int ipl; 81 82 sc->sc_dev = self; 83 aprint_normal("\n"); 84 85 sc->sc_bt = ka->ka_bt; 86 sc->sc_bh = ka->ka_bh; 87 sc->sc_offset = KBC_KBREG_DATA; 88 sc->sc_conssc = &kb_kbc_conssc; 89 ipl = ka->ka_ipl; 90 91 kb_kbc_init(sc); 92 93 isrlink_autovec(kb_kbc_intr, (void *)sc, ipl, IPL_TTY); 94 95 wsa.console = kb_kbc_conssc.cs_isconsole; 96 wsa.keymap = &kb_keymapdata; 97 wsa.accessops = &kb_accessops; 98 wsa.accesscookie = sc; 99 100 sc->sc_wskbddev = config_found(self, &wsa, wskbddevprint); 101 } 102 103 static void 104 kb_kbc_init(struct kb_softc *sc) 105 { 106 bus_space_tag_t bt = sc->sc_bt; 107 bus_space_handle_t bh = sc->sc_bh; 108 109 bus_space_write_1(bt, bh, KBC_KBREG_RESET, 0); 110 bus_space_write_1(bt, bh, KBC_KBREG_INTE, KBC_INTE); 111 } 112 113 int 114 kb_kbc_intr(void *arg) 115 { 116 struct kb_softc *sc = (struct kb_softc *)arg; 117 struct console_softc *kb_conssc = sc->sc_conssc; 118 bus_space_tag_t bt = sc->sc_bt; 119 bus_space_handle_t bh = sc->sc_bh; 120 int stat, handled = 0; 121 122 kb_conssc->cs_nintr++; 123 124 stat = bus_space_read_1(bt, bh, KBC_KBREG_STAT); 125 if (stat & KBCSTAT_KBRDY) { 126 kb_intr(sc); 127 handled = 1; 128 bus_space_write_1(bt, bh, KBC_KBREG_INTE, KBC_INTE); 129 } 130 131 return handled; 132 } 133 134 int 135 kb_kbc_cnattach(void) 136 { 137 138 kb_kbc_conssc.cs_isconsole = 1; 139 return kb_cnattach(&kb_kbc_conssc); 140 } 141