ucbio.c revision 1.2
1 /* $NetBSD: ucbio.c,v 1.2 2000/10/22 10:42:32 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end 41 * General Purpose I/O part. 42 */ 43 #include "opt_tx39_debug.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/device.h> 48 49 #include <machine/bus.h> 50 #include <machine/intr.h> 51 52 #include <hpcmips/tx/tx39var.h> 53 #include <hpcmips/tx/tx39sibvar.h> 54 #include <hpcmips/tx/tx39sibreg.h> 55 56 #include <hpcmips/dev/ucb1200var.h> 57 #include <hpcmips/dev/ucb1200reg.h> 58 59 int ucbio_match(struct device*, struct cfdata *, void *); 60 void ucbio_attach(struct device*, struct device *, void *); 61 62 struct betty_port_status { 63 u_int16_t dir; 64 u_int16_t in, out; 65 }; 66 67 struct ucbio_softc { 68 struct device sc_dev; 69 tx_chipset_tag_t sc_tc; 70 71 struct betty_port_status sc_stat, sc_ostat; 72 struct txio_ops sc_betty_ops; 73 }; 74 75 struct cfattach ucbio_ca = { 76 sizeof(struct ucbio_softc), ucbio_match, ucbio_attach 77 }; 78 79 /* I/O */ 80 static int betty_in(void *, int); 81 static void betty_out(void *, int, int); 82 /* interrupt */ 83 static void betty_intr_map(void *, int, int *, int *); 84 static void *betty_intr_establish(void *, int, int (*)(void *), void *); 85 static void betty_intr_disestablish(void *, void *); 86 /* debug */ 87 static void betty_update(void *); 88 static void betty_dump(void *); 89 90 int 91 ucbio_match(struct device *parent, struct cfdata *cf, void *aux) 92 { 93 return 1; 94 } 95 96 void 97 ucbio_attach(struct device *parent, struct device *self, void *aux) 98 { 99 struct ucb1200_attach_args *ucba = aux; 100 struct ucbio_softc *sc = (void *)self; 101 struct txio_ops *ops = &sc->sc_betty_ops; 102 103 sc->sc_tc = ucba->ucba_tc; 104 printf("\n"); 105 106 ops->_v = sc; 107 ops->_group = BETTY; 108 ops->_in = betty_in; 109 ops->_out = betty_out; 110 ops->_intr_map = betty_intr_map; 111 ops->_intr_establish = betty_intr_establish; 112 ops->_intr_disestablish = betty_intr_disestablish; 113 ops->_update = betty_update; 114 ops->_dump = betty_dump; 115 116 tx_conf_register_ioman(sc->sc_tc, ops); 117 118 tx_ioman_update(BETTY); 119 tx_ioman_dump(BETTY); 120 } 121 122 /* basic I/O */ 123 static void 124 betty_out(void *arg, int port, int onoff) 125 { 126 struct ucbio_softc *sc = arg; 127 tx_chipset_tag_t tc = sc->sc_tc; 128 txreg_t reg, pos; 129 130 pos = 1 << port; 131 reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 132 if (onoff) 133 reg |= pos; 134 else 135 reg &= ~pos; 136 txsibsf0_reg_write(tc, UCB1200_IO_DATA_REG, reg); 137 } 138 139 static int 140 betty_in(void *arg, int port) 141 { 142 struct ucbio_softc *sc = arg; 143 tx_chipset_tag_t tc = sc->sc_tc; 144 txreg_t reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 145 return reg & (1 << port); 146 } 147 148 /* interrupt method not implemented */ 149 static void 150 betty_intr_map(void *arg, int port, int *pedge, int *nedge) 151 { 152 } 153 154 static void * 155 betty_intr_establish(void *arg, int edge, int (*func)(void *), void *func_arg) 156 { 157 struct ucbio_softc *sc = arg; 158 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 159 __FUNCTION__); 160 return 0; 161 } 162 163 static void 164 betty_intr_disestablish(void *arg, void *ih) 165 { 166 struct ucbio_softc *sc = arg; 167 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 168 __FUNCTION__); 169 } 170 171 /* debug */ 172 static void 173 betty_update(void *arg) 174 { 175 struct ucbio_softc *sc = arg; 176 tx_chipset_tag_t tc = sc->sc_tc; 177 struct betty_port_status *stat = &sc->sc_stat; 178 u_int16_t dir, data; 179 180 sc->sc_ostat = *stat; /* save old status */ 181 dir = stat->dir = txsibsf0_reg_read(tc, UCB1200_IO_DIR_REG); 182 data = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 183 stat->out = data & dir; 184 stat->in = data & ~dir; 185 } 186 187 static void 188 betty_dump(void *arg) 189 { 190 struct ucbio_softc *sc = arg; 191 struct betty_port_status *stat = &sc->sc_stat; 192 193 printf("[BETTY I/O]\n"); 194 printf("IN "); 195 bitdisp(stat->in); 196 printf("OUT "); 197 bitdisp(stat->out); 198 printf("DIR "); 199 bitdisp(stat->dir); 200 } 201 202 203 204 205
Indexes created Tue Sep 23 14:10:03 GMT 2025