ms_kbc.c revision 1.14
1 /* $NetBSD: ms_kbc.c,v 1.14 2021/08/07 16:19:00 thorpej 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 /*- 28 * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 29 * 30 * Redistribution and use in source and binary forms, with or without 31 * modification, are permitted provided that the following conditions 32 * are met: 33 * 1. Redistributions of source code must retain the above copyright 34 * notice, this list of conditions and the following disclaimer. 35 * 2. Redistributions in binary form must reproduce the above copyright 36 * notice, this list of conditions and the following disclaimer in the 37 * documentation and/or other materials provided with the distribution. 38 * 3. The name of the author may not be used to endorse or promote products 39 * derived from this software without specific prior written permission. 40 * 41 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 42 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 44 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 45 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 */ 52 53 #include <sys/cdefs.h> 54 __KERNEL_RCSID(0, "$NetBSD: ms_kbc.c,v 1.14 2021/08/07 16:19:00 thorpej Exp $"); 55 56 #include <sys/param.h> 57 #include <sys/device.h> 58 #include <sys/systm.h> 59 60 #include <dev/wscons/wsconsio.h> 61 #include <dev/wscons/wsmousevar.h> 62 63 #include <machine/cpu.h> 64 #include <machine/bus.h> 65 66 #include <news68k/dev/kbcreg.h> 67 #include <news68k/dev/kbcvar.h> 68 #include <news68k/dev/msvar.h> 69 70 #include <news68k/news68k/isr.h> 71 72 static int ms_kbc_match(device_t, cfdata_t, void *); 73 static void ms_kbc_attach(device_t, device_t, void *); 74 static void ms_kbc_init(struct ms_softc *); 75 int ms_kbc_intr(void *); 76 77 static int ms_kbc_enable(void *); 78 static void ms_kbc_disable(void *); 79 static int ms_kbc_ioctl(void *, u_long, void *, int, struct lwp *); 80 81 CFATTACH_DECL_NEW(ms_kbc, sizeof(struct ms_softc), 82 ms_kbc_match, ms_kbc_attach, NULL, NULL); 83 84 struct wsmouse_accessops ms_kbc_accessops = { 85 ms_kbc_enable, 86 ms_kbc_ioctl, 87 ms_kbc_disable 88 }; 89 90 static int 91 ms_kbc_match(device_t parent, cfdata_t cf, void *aux) 92 { 93 struct kbc_attach_args *ka = aux; 94 95 if (strcmp(ka->ka_name, "ms")) 96 return 0; 97 98 return 1; 99 } 100 101 static void 102 ms_kbc_attach(device_t parent, device_t self, void *aux) 103 { 104 struct ms_softc *sc = device_private(self); 105 struct kbc_attach_args *ka = aux; 106 struct wsmousedev_attach_args wsa; 107 int ipl; 108 109 sc->sc_dev = self; 110 aprint_normal("\n"); 111 112 sc->sc_bt = ka->ka_bt; 113 sc->sc_bh = ka->ka_bh; 114 sc->sc_offset = KBC_MSREG_DATA; 115 ipl = ka->ka_ipl; 116 117 ms_kbc_init(sc); 118 119 isrlink_autovec(ms_kbc_intr, (void *)sc, ipl, IPL_TTY); 120 121 wsa.accessops = &ms_kbc_accessops; 122 wsa.accesscookie = sc; 123 sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint, 124 CFARGS_NONE); 125 } 126 127 static void 128 ms_kbc_init(struct ms_softc *sc) 129 { 130 bus_space_tag_t bt = sc->sc_bt; 131 bus_space_handle_t bh = sc->sc_bh; 132 133 bus_space_write_1(bt, bh, KBC_MSREG_RESET, 0); 134 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 135 } 136 137 int 138 ms_kbc_intr(void *v) 139 { 140 struct ms_softc *sc = v; 141 bus_space_tag_t bt = sc->sc_bt; 142 bus_space_handle_t bh = sc->sc_bh; 143 int handled = 0; 144 145 while (bus_space_read_1(bt, bh, KBC_MSREG_STAT) & KBCSTAT_MSRDY) { 146 ms_intr(sc); 147 handled = 1; 148 } 149 if (handled) 150 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 151 152 return handled; 153 } 154 155 static int 156 ms_kbc_enable(void *v) 157 { 158 struct ms_softc *sc = v; 159 bus_space_tag_t bt = sc->sc_bt; 160 bus_space_handle_t bh = sc->sc_bh; 161 162 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 163 164 return 0; 165 } 166 167 static void 168 ms_kbc_disable(void *v) 169 { 170 struct ms_softc *sc = v; 171 bus_space_tag_t bt = sc->sc_bt; 172 bus_space_handle_t bh = sc->sc_bh; 173 174 bus_space_write_1(bt, bh, KBC_MSREG_INTE, 0); 175 } 176 177 static int 178 ms_kbc_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 179 { 180 181 return EPASSTHROUGH; 182 } 183
Indexes created Wed Oct 01 13:09:50 GMT 2025