1 /* $NetBSD: kb_hb.c,v 1.12 2008/05/14 13:29:28 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Izumi Tsutsui. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: kb_hb.c,v 1.12 2008/05/14 13:29:28 tsutsui Exp $"); 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 #include "ioconf.h" 49 50 #define KB_SIZE 0x10 /* XXX */ 51 #define KB_PRI 5 52 53 static int kb_hb_match(device_t, cfdata_t, void *); 54 static void kb_hb_attach(device_t, device_t, void *); 55 static void kb_hb_init(struct kb_softc *); 56 int kb_hb_intr(void *); 57 int kb_hb_cnattach(void); 58 59 CFATTACH_DECL_NEW(kb_hb, sizeof(struct kb_softc), 60 kb_hb_match, kb_hb_attach, NULL, NULL); 61 62 struct console_softc kb_hb_conssc; 63 64 static int 65 kb_hb_match(device_t parent, cfdata_t cf, void *aux) 66 { 67 struct hb_attach_args *ha = aux; 68 u_int addr; 69 70 if (strcmp(ha->ha_name, "kb")) 71 return 0; 72 73 /* XXX no default address */ 74 if (ha->ha_address == (u_int)-1) 75 return 0; 76 77 addr = IIOV(ha->ha_address); /* XXX */ 78 79 if (badaddr((void *)addr, 1)) 80 return 0; 81 82 return 1; 83 } 84 85 static void 86 kb_hb_attach(device_t parent, device_t self, void *aux) 87 { 88 struct kb_softc *sc = device_private(self); 89 struct hb_attach_args *ha = aux; 90 bus_space_tag_t bt = ha->ha_bust; 91 bus_space_handle_t bh; 92 struct wskbddev_attach_args wsa; 93 int ipl; 94 95 sc->sc_dev = self; 96 97 if (bus_space_map(bt, ha->ha_address, KB_SIZE, 0, &bh) != 0) { 98 aprint_error(": can't map device space\n"); 99 return; 100 } 101 102 aprint_normal("\n"); 103 104 sc->sc_bt = bt; 105 sc->sc_bh = bh; 106 sc->sc_offset = KB_REG_DATA; 107 sc->sc_conssc = &kb_hb_conssc; 108 109 ipl = ha->ha_ipl; 110 if (ipl == -1) 111 ipl = KB_PRI; 112 113 kb_hb_init(sc); 114 115 isrlink_autovec(kb_hb_intr, (void *)sc, ipl, IPL_TTY); 116 117 wsa.console = kb_hb_conssc.cs_isconsole; 118 wsa.keymap = &kb_keymapdata; 119 wsa.accessops = &kb_accessops; 120 wsa.accesscookie = sc; 121 122 sc->sc_wskbddev = config_found(self, &wsa, wskbddevprint); 123 } 124 125 static void 126 kb_hb_init(struct kb_softc *sc) 127 { 128 bus_space_tag_t bt = sc->sc_bt; 129 bus_space_handle_t bh = sc->sc_bh; 130 131 bus_space_write_1(bt, bh, KB_REG_RESET, 0); 132 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 133 } 134 135 int 136 kb_hb_intr(void *arg) 137 { 138 struct kb_softc *sc = (struct kb_softc *)arg; 139 struct console_softc *kb_conssc = sc->sc_conssc; 140 bus_space_tag_t bt = sc->sc_bt; 141 bus_space_handle_t bh = sc->sc_bh; 142 int stat, handled = 0; 143 144 kb_conssc->cs_nintr++; 145 146 stat = bus_space_read_1(bt, bh, KB_REG_STAT); 147 if (stat & KBSTAT_RDY) { 148 kb_intr(sc); 149 handled = 1; 150 bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE); 151 } 152 153 return handled; 154 } 155 156 int 157 kb_hb_cnattach(void) 158 { 159 160 kb_hb_conssc.cs_isconsole = 1; 161 return kb_cnattach(&kb_hb_conssc); 162 } 163