1 /* $NetBSD: ucbio.c,v 1.5 2002/01/29 18:53:12 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 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 48 #include <machine/bus.h> 49 #include <machine/intr.h> 50 51 #include <hpcmips/tx/tx39var.h> 52 #include <hpcmips/tx/tx39sibvar.h> 53 #include <hpcmips/tx/tx39sibreg.h> 54 55 #include <hpcmips/dev/ucb1200var.h> 56 #include <hpcmips/dev/ucb1200reg.h> 57 58 #include <dev/hpc/hpciovar.h> /* I/O manager */ 59 60 #include <machine/debug.h> 61 62 int ucbio_match(struct device*, struct cfdata *, void *); 63 void ucbio_attach(struct device*, struct device *, void *); 64 65 struct betty_port_status { 66 u_int16_t dir; 67 u_int16_t in, out; 68 }; 69 70 struct ucbio_softc { 71 struct device sc_dev; 72 tx_chipset_tag_t sc_tc; 73 74 struct betty_port_status sc_stat, sc_ostat; 75 struct hpcio_chip sc_hc; 76 }; 77 78 struct cfattach ucbio_ca = { 79 sizeof(struct ucbio_softc), ucbio_match, ucbio_attach 80 }; 81 82 /* I/O */ 83 static int betty_in(hpcio_chip_t, int); 84 static void betty_out(hpcio_chip_t, int, int); 85 /* interrupt */ 86 static hpcio_intr_handle_t betty_intr_establish(hpcio_chip_t, int, int, 87 int (*)(void *), void *); 88 static void betty_intr_disestablish(hpcio_chip_t, void *); 89 /* debug */ 90 static void betty_update(hpcio_chip_t); 91 static void betty_dump(hpcio_chip_t); 92 93 int 94 ucbio_match(struct device *parent, struct cfdata *cf, void *aux) 95 { 96 return (1); 97 } 98 99 void 100 ucbio_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct ucb1200_attach_args *ucba = aux; 103 struct ucbio_softc *sc = (void *)self; 104 struct hpcio_chip *hc = &sc->sc_hc; 105 106 sc->sc_tc = ucba->ucba_tc; 107 printf("\n"); 108 109 hc->hc_sc = sc; 110 hc->hc_chipid = 2; 111 hc->hc_name = "UCB1200"; 112 hc->hc_portread = betty_in; 113 hc->hc_portwrite = betty_out; 114 hc->hc_intr_establish = betty_intr_establish; 115 hc->hc_intr_disestablish = betty_intr_disestablish; 116 hc->hc_update = betty_update; 117 hc->hc_dump = betty_dump; 118 119 tx_conf_register_ioman(sc->sc_tc, hc); 120 121 hpcio_update(hc); 122 hpcio_dump(hc); 123 } 124 125 /* basic I/O */ 126 static void 127 betty_out(hpcio_chip_t hc, int port, int onoff) 128 { 129 struct ucbio_softc *sc = hc->hc_sc; 130 tx_chipset_tag_t tc = sc->sc_tc; 131 txreg_t reg, pos; 132 133 pos = 1 << port; 134 reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 135 if (onoff) 136 reg |= pos; 137 else 138 reg &= ~pos; 139 txsibsf0_reg_write(tc, UCB1200_IO_DATA_REG, reg); 140 } 141 142 static int 143 betty_in(hpcio_chip_t hc, int port) 144 { 145 struct ucbio_softc *sc = hc->hc_sc; 146 tx_chipset_tag_t tc = sc->sc_tc; 147 txreg_t reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 148 149 return (reg & (1 << port)); 150 } 151 152 /* interrupt method not implemented */ 153 static hpcio_intr_handle_t 154 betty_intr_establish(hpcio_chip_t hc, int port, int mode, int (*func)(void *), 155 void *func_arg) 156 { 157 struct ucbio_softc *sc = hc->hc_sc; 158 159 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 160 __FUNCTION__); 161 162 return (0); 163 } 164 165 static void 166 betty_intr_disestablish(hpcio_chip_t hc, void *ih) 167 { 168 struct ucbio_softc *sc = hc->hc_sc; 169 170 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 171 __FUNCTION__); 172 } 173 174 /* debug */ 175 static void 176 betty_update(hpcio_chip_t hc) 177 { 178 struct ucbio_softc *sc = hc->hc_sc; 179 tx_chipset_tag_t tc = sc->sc_tc; 180 struct betty_port_status *stat = &sc->sc_stat; 181 u_int16_t dir, data; 182 183 sc->sc_ostat = *stat; /* save old status */ 184 dir = stat->dir = txsibsf0_reg_read(tc, UCB1200_IO_DIR_REG); 185 data = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 186 stat->out = data & dir; 187 stat->in = data & ~dir; 188 } 189 190 static void 191 betty_dump(hpcio_chip_t hc) 192 { 193 #ifdef UCBIO_DEBUG 194 struct ucbio_softc *sc = hc->hc_sc; 195 struct betty_port_status *stat = &sc->sc_stat; 196 197 printf("[BETTY I/O]\n"); 198 printf("IN "); 199 dbg_bit_print(stat->in); 200 printf("OUT "); 201 dbg_bit_print(stat->out); 202 printf("DIR "); 203 dbg_bit_print(stat->dir); 204 #endif /* UCBIO_DEBUG */ 205 } 206