1 /* $NetBSD: kb_hb.c,v 1.11 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_hb.c,v 1.11 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 #include <news68k/dev/hbvar.h> 46 #include <news68k/dev/kb_hbreg.h> 47 #include <news68k/dev/kbvar.h> 48 49 #include <news68k/news68k/isr.h> 50 51 #include "ioconf.h" 52 53 #define KB_SIZE 0x10 /* XXX */ 54 #define KB_PRI 5 55 56 static int kb_hb_match(device_t, cfdata_t, void *); 57 static void kb_hb_attach(device_t, device_t, void *); 58 static void kb_hb_init(struct kb_softc *); 59 int kb_hb_intr(void *); 60 int kb_hb_cnattach(void); 61 62 CFATTACH_DECL_NEW(kb_hb, sizeof(struct kb_softc), 63 kb_hb_match, kb_hb_attach, NULL, NULL); 64 65 struct console_softc kb_hb_conssc; 66 67 static int 68 kb_hb_match(device_t parent, cfdata_t cf, 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 == (u_int)-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 static void 89 kb_hb_attach(device_t parent, device_t self, void *aux) 90 { 91 struct kb_softc *sc = device_private(self); 92 struct hb_attach_args *ha = aux; 93 bus_space_tag_t bt = ha->ha_bust; 94 bus_space_handle_t bh; 95 struct wskbddev_attach_args wsa; 96 int ipl; 97 98 sc->sc_dev = self; 99 100 if (bus_space_map(bt, ha->ha_address, KB_SIZE, 0, &bh) != 0) { 101 aprint_error(": can't map device space\n"); 102 return; 103 } 104 105 aprint_normal("\n"); 106 107 sc->sc_bt = bt; 108 sc->sc_bh = bh; 109 sc->sc_offset = KB_REG_DATA; 110 sc->sc_conssc = &kb_hb_conssc; 111 112 ipl = ha->ha_ipl; 113 if (ipl == -1) 114 ipl = KB_PRI; 115 116 kb_hb_init(sc); 117 118 isrlink_autovec(kb_hb_intr, (void *)sc, ipl, IPL_TTY); 119 120 wsa.console = kb_hb_conssc.cs_isconsole; 121 wsa.keymap = &kb_keymapdata; 122 wsa.accessops = &kb_accessops; 123 wsa.accesscookie = sc; 124 125 sc->sc_wskbddev = config_found(self, &wsa, wskbddevprint); 126 } 127 128 static void 129 kb_hb_init(struct kb_softc *sc) 130 { 131 bus_space_tag_t bt = sc->sc_bt; 132 bus_space_handle_t bh = sc->sc_bh; 133 134 bus_space_write_1(bt, bh, KB_REG_RESET, 0); 135 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 136 } 137 138 int 139 kb_hb_intr(void *arg) 140 { 141 struct kb_softc *sc = (struct kb_softc *)arg; 142 struct console_softc *kb_conssc = sc->sc_conssc; 143 bus_space_tag_t bt = sc->sc_bt; 144 bus_space_handle_t bh = sc->sc_bh; 145 int stat, handled = 0; 146 147 kb_conssc->cs_nintr++; 148 149 stat = bus_space_read_1(bt, bh, KB_REG_STAT); 150 if (stat & KBSTAT_RDY) { 151 kb_intr(sc); 152 handled = 1; 153 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 154 } 155 156 return handled; 157 } 158 159 int 160 kb_hb_cnattach(void) 161 { 162 163 kb_hb_conssc.cs_isconsole = 1; 164 return kb_cnattach(&kb_hb_conssc); 165 } 166