1 /* $NetBSD: ms_kbc.c,v 1.4 2002/10/02 04:40:08 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Izumi Tsutsui. All rights reserved. 5 * Copyright (c) 2000 Tsubai Masanari. 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/device.h> 32 #include <sys/systm.h> 33 34 #include <dev/wscons/wsconsio.h> 35 #include <dev/wscons/wsmousevar.h> 36 37 #include <machine/cpu.h> 38 #include <machine/bus.h> 39 40 #include <news68k/dev/kbcreg.h> 41 #include <news68k/dev/kbcvar.h> 42 #include <news68k/dev/msvar.h> 43 44 #include <news68k/news68k/isr.h> 45 46 int ms_kbc_match(struct device *, struct cfdata *, void *); 47 void ms_kbc_attach(struct device *, struct device *, void *); 48 void ms_kbc_init(struct ms_softc *); 49 int ms_kbc_intr(void *); 50 51 int ms_kbc_enable(void *); 52 void ms_kbc_disable(void *); 53 int ms_kbc_ioctl(void *, u_long, caddr_t, int, struct proc *); 54 55 CFATTACH_DECL(ms_kbc, sizeof(struct ms_softc), 56 ms_kbc_match, ms_kbc_attach, NULL, NULL); 57 58 struct wsmouse_accessops ms_kbc_accessops = { 59 ms_kbc_enable, 60 ms_kbc_ioctl, 61 ms_kbc_disable 62 }; 63 64 int 65 ms_kbc_match(parent, cf, aux) 66 struct device *parent; 67 struct cfdata *cf; 68 void *aux; 69 { 70 struct kbc_attach_args *ka = aux; 71 72 if (strcmp(ka->ka_name, "ms")) 73 return 0; 74 75 return 1; 76 } 77 78 void 79 ms_kbc_attach(parent, self, aux) 80 struct device *parent, *self; 81 void *aux; 82 { 83 struct ms_softc *sc = (void *)self; 84 struct kbc_attach_args *ka = aux; 85 struct wsmousedev_attach_args wsa; 86 int ipl; 87 88 printf("\n"); 89 90 sc->sc_bt = ka->ka_bt; 91 sc->sc_bh = ka->ka_bh; 92 sc->sc_offset = KBC_MSREG_DATA; 93 ipl = ka->ka_ipl; 94 95 ms_kbc_init(sc); 96 97 isrlink_autovec(ms_kbc_intr, (void *)sc, ipl, ISRPRI_TTY); 98 99 wsa.accessops = &ms_kbc_accessops; 100 wsa.accesscookie = sc; 101 sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint); 102 } 103 104 void 105 ms_kbc_init(sc) 106 struct ms_softc *sc; 107 { 108 bus_space_tag_t bt = sc->sc_bt; 109 bus_space_handle_t bh = sc->sc_bh; 110 111 bus_space_write_1(bt, bh, KBC_MSREG_RESET, 0); 112 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 113 } 114 115 int 116 ms_kbc_intr(v) 117 void *v; 118 { 119 struct ms_softc *sc = v; 120 bus_space_tag_t bt = sc->sc_bt; 121 bus_space_handle_t bh = sc->sc_bh; 122 int handled = 0; 123 124 while (bus_space_read_1(bt, bh, KBC_MSREG_STAT) & KBCSTAT_MSRDY) { 125 ms_intr(sc); 126 handled = 1; 127 } 128 if (handled) 129 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 130 131 return handled; 132 } 133 134 int 135 ms_kbc_enable(v) 136 void *v; 137 { 138 struct ms_softc *sc = v; 139 bus_space_tag_t bt = sc->sc_bt; 140 bus_space_handle_t bh = sc->sc_bh; 141 142 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 143 144 return 0; 145 } 146 147 void 148 ms_kbc_disable(v) 149 void *v; 150 { 151 struct ms_softc *sc = v; 152 bus_space_tag_t bt = sc->sc_bt; 153 bus_space_handle_t bh = sc->sc_bh; 154 155 bus_space_write_1(bt, bh, KBC_MSREG_INTE, 0); 156 } 157 158 int 159 ms_kbc_ioctl(v, cmd, data, flag, p) 160 void *v; 161 u_long cmd; 162 caddr_t data; 163 int flag; 164 struct proc *p; 165 { 166 return EPASSTHROUGH; 167 } 168