1 /* $NetBSD: ms_kbc.c,v 1.9 2007/03/04 06:00:24 christos 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/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: ms_kbc.c,v 1.9 2007/03/04 06:00:24 christos Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/device.h> 35 #include <sys/systm.h> 36 37 #include <dev/wscons/wsconsio.h> 38 #include <dev/wscons/wsmousevar.h> 39 40 #include <machine/cpu.h> 41 #include <machine/bus.h> 42 43 #include <news68k/dev/kbcreg.h> 44 #include <news68k/dev/kbcvar.h> 45 #include <news68k/dev/msvar.h> 46 47 #include <news68k/news68k/isr.h> 48 49 static int ms_kbc_match(struct device *, struct cfdata *, void *); 50 static void ms_kbc_attach(struct device *, struct device *, void *); 51 static void ms_kbc_init(struct ms_softc *); 52 int ms_kbc_intr(void *); 53 54 static int ms_kbc_enable(void *); 55 static void ms_kbc_disable(void *); 56 static int ms_kbc_ioctl(void *, u_long, void *, int, struct lwp *); 57 58 CFATTACH_DECL(ms_kbc, sizeof(struct ms_softc), 59 ms_kbc_match, ms_kbc_attach, NULL, NULL); 60 61 struct wsmouse_accessops ms_kbc_accessops = { 62 ms_kbc_enable, 63 ms_kbc_ioctl, 64 ms_kbc_disable 65 }; 66 67 static int 68 ms_kbc_match(struct device *parent, struct cfdata *cf, 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 static void 79 ms_kbc_attach(struct device *parent, struct device *self, void *aux) 80 { 81 struct ms_softc *sc = (void *)self; 82 struct kbc_attach_args *ka = aux; 83 struct wsmousedev_attach_args wsa; 84 int ipl; 85 86 printf("\n"); 87 88 sc->sc_bt = ka->ka_bt; 89 sc->sc_bh = ka->ka_bh; 90 sc->sc_offset = KBC_MSREG_DATA; 91 ipl = ka->ka_ipl; 92 93 ms_kbc_init(sc); 94 95 isrlink_autovec(ms_kbc_intr, (void *)sc, ipl, IPL_TTY); 96 97 wsa.accessops = &ms_kbc_accessops; 98 wsa.accesscookie = sc; 99 sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint); 100 } 101 102 static void 103 ms_kbc_init(struct ms_softc *sc) 104 { 105 bus_space_tag_t bt = sc->sc_bt; 106 bus_space_handle_t bh = sc->sc_bh; 107 108 bus_space_write_1(bt, bh, KBC_MSREG_RESET, 0); 109 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 110 } 111 112 int 113 ms_kbc_intr(void *v) 114 { 115 struct ms_softc *sc = v; 116 bus_space_tag_t bt = sc->sc_bt; 117 bus_space_handle_t bh = sc->sc_bh; 118 int handled = 0; 119 120 while (bus_space_read_1(bt, bh, KBC_MSREG_STAT) & KBCSTAT_MSRDY) { 121 ms_intr(sc); 122 handled = 1; 123 } 124 if (handled) 125 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 126 127 return handled; 128 } 129 130 static int 131 ms_kbc_enable(void *v) 132 { 133 struct ms_softc *sc = v; 134 bus_space_tag_t bt = sc->sc_bt; 135 bus_space_handle_t bh = sc->sc_bh; 136 137 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE); 138 139 return 0; 140 } 141 142 static void 143 ms_kbc_disable(void *v) 144 { 145 struct ms_softc *sc = v; 146 bus_space_tag_t bt = sc->sc_bt; 147 bus_space_handle_t bh = sc->sc_bh; 148 149 bus_space_write_1(bt, bh, KBC_MSREG_INTE, 0); 150 } 151 152 static int 153 ms_kbc_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 154 { 155 156 return EPASSTHROUGH; 157 } 158