ucbio.c revision 1.3
1 /* $NetBSD: ucbio.c,v 1.3 2001/06/13 19:09:08 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 #include <dev/hpc/hpciovar.h> /* I/O manager */ 60 61 int ucbio_match(struct device*, struct cfdata *, void *); 62 void ucbio_attach(struct device*, struct device *, void *); 63 64 struct betty_port_status { 65 u_int16_t dir; 66 u_int16_t in, out; 67 }; 68 69 struct ucbio_softc { 70 struct device sc_dev; 71 tx_chipset_tag_t sc_tc; 72 73 struct betty_port_status sc_stat, sc_ostat; 74 struct hpcio_chip sc_hc; 75 }; 76 77 struct cfattach ucbio_ca = { 78 sizeof(struct ucbio_softc), ucbio_match, ucbio_attach 79 }; 80 81 /* I/O */ 82 static int betty_in(hpcio_chip_t, int); 83 static void betty_out(hpcio_chip_t, int, int); 84 /* interrupt */ 85 static hpcio_intr_handle_t betty_intr_establish(hpcio_chip_t, int, int, 86 int (*)(void *), void *); 87 static void betty_intr_disestablish(hpcio_chip_t, void *); 88 /* debug */ 89 static void betty_update(hpcio_chip_t); 90 static void betty_dump(hpcio_chip_t); 91 92 int 93 ucbio_match(struct device *parent, struct cfdata *cf, void *aux) 94 { 95 return (1); 96 } 97 98 void 99 ucbio_attach(struct device *parent, struct device *self, void *aux) 100 { 101 struct ucb1200_attach_args *ucba = aux; 102 struct ucbio_softc *sc = (void *)self; 103 struct hpcio_chip *hc = &sc->sc_hc; 104 105 sc->sc_tc = ucba->ucba_tc; 106 printf("\n"); 107 108 hc->hc_sc = sc; 109 hc->hc_chipid = 2; 110 hc->hc_name = "UCB1200"; 111 hc->hc_portread = betty_in; 112 hc->hc_portwrite = betty_out; 113 hc->hc_intr_establish = betty_intr_establish; 114 hc->hc_intr_disestablish = betty_intr_disestablish; 115 hc->hc_update = betty_update; 116 hc->hc_dump = betty_dump; 117 118 tx_conf_register_ioman(sc->sc_tc, hc); 119 120 hpcio_update(hc); 121 hpcio_dump(hc); 122 } 123 124 /* basic I/O */ 125 static void 126 betty_out(hpcio_chip_t hc, int port, int onoff) 127 { 128 struct ucbio_softc *sc = hc->hc_sc; 129 tx_chipset_tag_t tc = sc->sc_tc; 130 txreg_t reg, pos; 131 132 pos = 1 << port; 133 reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 134 if (onoff) 135 reg |= pos; 136 else 137 reg &= ~pos; 138 txsibsf0_reg_write(tc, UCB1200_IO_DATA_REG, reg); 139 } 140 141 static int 142 betty_in(hpcio_chip_t hc, int port) 143 { 144 struct ucbio_softc *sc = hc->hc_sc; 145 tx_chipset_tag_t tc = sc->sc_tc; 146 txreg_t reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 147 148 return (reg & (1 << port)); 149 } 150 151 /* interrupt method not implemented */ 152 static hpcio_intr_handle_t 153 betty_intr_establish(hpcio_chip_t hc, int port, int mode, int (*func)(void *), 154 void *func_arg) 155 { 156 struct ucbio_softc *sc = hc->hc_sc; 157 158 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 159 __FUNCTION__); 160 161 return (0); 162 } 163 164 static void 165 betty_intr_disestablish(hpcio_chip_t hc, void *ih) 166 { 167 struct ucbio_softc *sc = hc->hc_sc; 168 169 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 170 __FUNCTION__); 171 } 172 173 /* debug */ 174 static void 175 betty_update(hpcio_chip_t hc) 176 { 177 struct ucbio_softc *sc = hc->hc_sc; 178 tx_chipset_tag_t tc = sc->sc_tc; 179 struct betty_port_status *stat = &sc->sc_stat; 180 u_int16_t dir, data; 181 182 sc->sc_ostat = *stat; /* save old status */ 183 dir = stat->dir = txsibsf0_reg_read(tc, UCB1200_IO_DIR_REG); 184 data = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 185 stat->out = data & dir; 186 stat->in = data & ~dir; 187 } 188 189 static void 190 betty_dump(hpcio_chip_t hc) 191 { 192 struct ucbio_softc *sc = hc->hc_sc; 193 struct betty_port_status *stat = &sc->sc_stat; 194 195 printf("[BETTY I/O]\n"); 196 printf("IN "); 197 bitdisp(stat->in); 198 printf("OUT "); 199 bitdisp(stat->out); 200 printf("DIR "); 201 bitdisp(stat->dir); 202 } 203
Indexes created Tue Sep 23 13:09:54 GMT 2025