ms_hb.c revision 1.10.40.1
1 /* $NetBSD: ms_hb.c,v 1.10.40.1 2008/04/03 12:42:22 mjf 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_hb.c,v 1.10.40.1 2008/04/03 12:42:22 mjf 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/bus.h> 41 #include <machine/cpu.h> 42 43 #include <news68k/dev/hbvar.h> 44 #include <news68k/dev/ms_hbreg.h> 45 #include <news68k/dev/msvar.h> 46 47 #include <news68k/news68k/isr.h> 48 49 #define MS_SIZE 0x10 /* XXX */ 50 #define MS_IPL 5 51 52 static int ms_hb_match(device_t, cfdata_t, void *); 53 static void ms_hb_attach(device_t, device_t, void *); 54 static void ms_hb_init(struct ms_softc *); 55 int ms_hb_intr(void *); 56 57 static int ms_hb_enable(void *); 58 static int ms_hb_ioctl(void *, u_long, void *, int, struct lwp *); 59 static void ms_hb_disable(void *); 60 61 CFATTACH_DECL_NEW(ms_hb, sizeof(struct ms_softc), 62 ms_hb_match, ms_hb_attach, NULL, NULL); 63 64 struct wsmouse_accessops ms_hb_accessops = { 65 ms_hb_enable, 66 ms_hb_ioctl, 67 ms_hb_disable 68 }; 69 70 static int 71 ms_hb_match(device_t parent, cfdata_t cf, void *aux) 72 { 73 struct hb_attach_args *ha = aux; 74 u_int addr; 75 76 if (strcmp(ha->ha_name, "ms")) 77 return 0; 78 79 /* XXX no default address */ 80 if (ha->ha_address == (u_int)-1) 81 return 0; 82 83 addr = IIOV(ha->ha_address); /* XXX */ 84 85 if (badaddr((void *)addr, 1)) 86 return 0; 87 88 return 1; 89 } 90 91 static void 92 ms_hb_attach(device_t parent, device_t self, void *aux) 93 { 94 struct ms_softc *sc = device_private(self); 95 struct hb_attach_args *ha = aux; 96 bus_space_tag_t bt = ha->ha_bust; 97 bus_space_handle_t bh; 98 struct wsmousedev_attach_args wsa; 99 int ipl; 100 101 sc->sc_dev = self; 102 if (bus_space_map(bt, ha->ha_address, MS_SIZE, 0, &bh) != 0) { 103 aprint_error(": can't map device space\n"); 104 return; 105 } 106 107 aprint_normal("\n"); 108 109 sc->sc_bt = bt; 110 sc->sc_bh = bh; 111 sc->sc_offset = MS_REG_DATA; 112 ipl = ha->ha_ipl; 113 if (ipl == -1) 114 ipl = MS_IPL; 115 116 ms_hb_init(sc); 117 118 isrlink_autovec(ms_hb_intr, (void *)sc, ipl, IPL_TTY); 119 120 wsa.accessops = &ms_hb_accessops; 121 wsa.accesscookie = sc; 122 sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint); 123 } 124 125 static void 126 ms_hb_init(struct ms_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, MS_REG_RESET, 0); 132 bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE); 133 } 134 135 int 136 ms_hb_intr(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 int handled = 0; 142 143 while ((bus_space_read_1(bt, bh, MS_REG_STAT) & MSSTAT_RDY) != 0) { 144 ms_intr(sc); 145 handled = 1; 146 } 147 if (handled) 148 bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE); 149 150 return handled; 151 } 152 153 static int 154 ms_hb_enable(void *v) 155 { 156 struct ms_softc *sc = v; 157 bus_space_tag_t bt = sc->sc_bt; 158 bus_space_handle_t bh = sc->sc_bh; 159 160 bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE); 161 162 return 0; 163 } 164 165 static void 166 ms_hb_disable(void *v) 167 { 168 struct ms_softc *sc = v; 169 bus_space_tag_t bt = sc->sc_bt; 170 bus_space_handle_t bh = sc->sc_bh; 171 172 bus_space_write_1(bt, bh, MS_REG_INTE, 0); 173 } 174 175 static int 176 ms_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 177 { 178 179 return EPASSTHROUGH; 180 } 181
Indexes created Mon Oct 27 04:09:48 GMT 2025