1 /* $NetBSD: ucbio.c,v 1.8 2003/07/15 02:29:30 lukem 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/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: ucbio.c,v 1.8 2003/07/15 02:29:30 lukem Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 51 #include <machine/bus.h> 52 #include <machine/intr.h> 53 54 #include <hpcmips/tx/tx39var.h> 55 #include <hpcmips/tx/tx39sibvar.h> 56 #include <hpcmips/tx/tx39sibreg.h> 57 58 #include <hpcmips/dev/ucb1200var.h> 59 #include <hpcmips/dev/ucb1200reg.h> 60 61 #include <dev/hpc/hpciovar.h> /* I/O manager */ 62 63 #include <machine/debug.h> 64 65 int ucbio_match(struct device*, struct cfdata *, void *); 66 void ucbio_attach(struct device*, struct device *, void *); 67 68 struct betty_port_status { 69 u_int16_t dir; 70 u_int16_t in, out; 71 }; 72 73 struct ucbio_softc { 74 struct device sc_dev; 75 tx_chipset_tag_t sc_tc; 76 77 struct betty_port_status sc_stat, sc_ostat; 78 struct hpcio_chip sc_hc; 79 }; 80 81 CFATTACH_DECL(ucbio, sizeof(struct ucbio_softc), 82 ucbio_match, ucbio_attach, NULL, NULL); 83 84 /* I/O */ 85 static int betty_in(hpcio_chip_t, int); 86 static void betty_out(hpcio_chip_t, int, int); 87 /* interrupt */ 88 static hpcio_intr_handle_t betty_intr_establish(hpcio_chip_t, int, int, 89 int (*)(void *), void *); 90 static void betty_intr_disestablish(hpcio_chip_t, void *); 91 /* debug */ 92 static void betty_update(hpcio_chip_t); 93 static void betty_dump(hpcio_chip_t); 94 95 int 96 ucbio_match(struct device *parent, struct cfdata *cf, void *aux) 97 { 98 return (1); 99 } 100 101 void 102 ucbio_attach(struct device *parent, struct device *self, void *aux) 103 { 104 struct ucb1200_attach_args *ucba = aux; 105 struct ucbio_softc *sc = (void *)self; 106 struct hpcio_chip *hc = &sc->sc_hc; 107 108 sc->sc_tc = ucba->ucba_tc; 109 printf("\n"); 110 111 hc->hc_sc = sc; 112 hc->hc_chipid = 2; 113 hc->hc_name = "UCB1200"; 114 hc->hc_portread = betty_in; 115 hc->hc_portwrite = betty_out; 116 hc->hc_intr_establish = betty_intr_establish; 117 hc->hc_intr_disestablish = betty_intr_disestablish; 118 hc->hc_update = betty_update; 119 hc->hc_dump = betty_dump; 120 121 tx_conf_register_ioman(sc->sc_tc, hc); 122 123 hpcio_update(hc); 124 hpcio_dump(hc); 125 } 126 127 /* basic I/O */ 128 static void 129 betty_out(hpcio_chip_t hc, int port, int onoff) 130 { 131 struct ucbio_softc *sc = hc->hc_sc; 132 tx_chipset_tag_t tc = sc->sc_tc; 133 txreg_t reg, pos; 134 135 pos = 1 << port; 136 reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 137 if (onoff) 138 reg |= pos; 139 else 140 reg &= ~pos; 141 txsibsf0_reg_write(tc, UCB1200_IO_DATA_REG, reg); 142 } 143 144 static int 145 betty_in(hpcio_chip_t hc, int port) 146 { 147 struct ucbio_softc *sc = hc->hc_sc; 148 tx_chipset_tag_t tc = sc->sc_tc; 149 txreg_t reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 150 151 return (reg & (1 << port)); 152 } 153 154 /* interrupt method not implemented */ 155 static hpcio_intr_handle_t 156 betty_intr_establish(hpcio_chip_t hc, int port, int mode, int (*func)(void *), 157 void *func_arg) 158 { 159 struct ucbio_softc *sc = hc->hc_sc; 160 161 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 162 __FUNCTION__); 163 164 return (0); 165 } 166 167 static void 168 betty_intr_disestablish(hpcio_chip_t hc, void *ih) 169 { 170 struct ucbio_softc *sc = hc->hc_sc; 171 172 printf("%s: %s not implemented.\n", sc->sc_dev.dv_xname, 173 __FUNCTION__); 174 } 175 176 /* debug */ 177 static void 178 betty_update(hpcio_chip_t hc) 179 { 180 struct ucbio_softc *sc = hc->hc_sc; 181 tx_chipset_tag_t tc = sc->sc_tc; 182 struct betty_port_status *stat = &sc->sc_stat; 183 u_int16_t dir, data; 184 185 sc->sc_ostat = *stat; /* save old status */ 186 dir = stat->dir = txsibsf0_reg_read(tc, UCB1200_IO_DIR_REG); 187 data = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 188 stat->out = data & dir; 189 stat->in = data & ~dir; 190 } 191 192 static void 193 betty_dump(hpcio_chip_t hc) 194 { 195 #ifdef UCBIO_DEBUG 196 struct ucbio_softc *sc = hc->hc_sc; 197 struct betty_port_status *stat = &sc->sc_stat; 198 199 printf("[BETTY I/O]\n"); 200 printf("IN "); 201 dbg_bit_print(stat->in); 202 printf("OUT "); 203 dbg_bit_print(stat->out); 204 printf("DIR "); 205 dbg_bit_print(stat->dir); 206 #endif /* UCBIO_DEBUG */ 207 } 208