1 /* $NetBSD: kb_hb.c,v 1.3 2002/10/02 04:40:08 thorpej 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/param.h> 31 #include <sys/systm.h> 32 #include <sys/device.h> 33 34 #include <machine/bus.h> 35 #include <machine/cpu.h> 36 37 #include <dev/wscons/wsconsio.h> 38 #include <dev/wscons/wskbdvar.h> 39 #include <dev/wscons/wsksymdef.h> 40 #include <dev/wscons/wsksymvar.h> 41 42 #include <news68k/dev/hbvar.h> 43 #include <news68k/dev/kb_hbreg.h> 44 #include <news68k/dev/kbvar.h> 45 46 #include <news68k/news68k/isr.h> 47 48 #define KB_SIZE 0x10 /* XXX */ 49 #define KB_PRI 5 50 51 int kb_hb_match(struct device *, struct cfdata *, void *); 52 void kb_hb_attach(struct device *, struct device *, void *); 53 void kb_hb_init(struct kb_softc *); 54 int kb_hb_intr(void *); 55 int kb_hb_cnattach(void); 56 57 CFATTACH_DECL(kb_hb, sizeof(struct kb_softc), 58 kb_hb_match, kb_hb_attach, NULL, NULL); 59 60 struct console_softc kb_hb_conssc; 61 62 extern struct cfdriver kb_hb_cd; 63 64 int 65 kb_hb_match(parent, cf, aux) 66 struct device *parent; 67 struct cfdata *cf; 68 void *aux; 69 { 70 struct hb_attach_args *ha = aux; 71 u_int addr; 72 73 if (strcmp(ha->ha_name, "kb")) 74 return 0; 75 76 /* XXX no default address */ 77 if (ha->ha_address == -1) 78 return 0; 79 80 addr = IIOV(ha->ha_address); /* XXX */ 81 82 if (badaddr((void *)addr, 1)) 83 return 0; 84 85 return 1; 86 } 87 88 void 89 kb_hb_attach(parent, self, aux) 90 struct device *parent; 91 struct device *self; 92 void *aux; 93 { 94 struct kb_softc *sc = (void *)self; 95 struct hb_attach_args *ha = aux; 96 bus_space_tag_t bt = ha->ha_bust; 97 bus_space_handle_t bh; 98 struct wskbddev_attach_args wsa; 99 int ipl; 100 101 if (bus_space_map(bt, ha->ha_address, KB_SIZE, 0, &bh) != 0) { 102 printf("can't map device space\n"); 103 return; 104 } 105 106 printf("\n"); 107 108 sc->sc_bt = bt; 109 sc->sc_bh = bh; 110 sc->sc_offset = KB_REG_DATA; 111 sc->sc_conssc = &kb_hb_conssc; 112 113 ipl = ha->ha_ipl; 114 if (ipl == -1) 115 ipl = KB_PRI; 116 117 kb_hb_init(sc); 118 119 isrlink_autovec(kb_hb_intr, (void *)sc, ipl, ISRPRI_TTY); 120 121 wsa.console = kb_hb_conssc.cs_isconsole; 122 wsa.keymap = &kb_keymapdata; 123 wsa.accessops = &kb_accessops; 124 wsa.accesscookie = sc; 125 126 sc->sc_wskbddev = config_found(self, &wsa, wskbddevprint); 127 } 128 129 void 130 kb_hb_init(sc) 131 struct kb_softc *sc; 132 { 133 bus_space_tag_t bt = sc->sc_bt; 134 bus_space_handle_t bh = sc->sc_bh; 135 136 bus_space_write_1(bt, bh, KB_REG_RESET, 0); 137 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 138 } 139 140 int 141 kb_hb_intr(arg) 142 void *arg; 143 { 144 struct kb_softc *sc = (struct kb_softc *)arg; 145 struct console_softc *kb_conssc = sc->sc_conssc; 146 bus_space_tag_t bt = sc->sc_bt; 147 bus_space_handle_t bh = sc->sc_bh; 148 int stat, handled = 0; 149 150 kb_conssc->cs_nintr++; 151 152 stat = bus_space_read_1(bt, bh, KB_REG_STAT); 153 if (stat & KBSTAT_RDY) { 154 kb_intr(sc); 155 handled = 1; 156 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 157 } 158 159 return handled; 160 } 161 162 int 163 kb_hb_cnattach() 164 { 165 166 kb_hb_conssc.cs_isconsole = 1; 167 return kb_cnattach(&kb_hb_conssc); 168 } 169