1 /* $NetBSD: ucbio.c,v 1.12 2012/10/27 17:17:53 chs 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end 34 * General Purpose I/O part. 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: ucbio.c,v 1.12 2012/10/27 17:17:53 chs Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <hpcmips/tx/tx39var.h> 48 #include <hpcmips/tx/tx39sibvar.h> 49 #include <hpcmips/tx/tx39sibreg.h> 50 51 #include <hpcmips/dev/ucb1200var.h> 52 #include <hpcmips/dev/ucb1200reg.h> 53 54 #include <dev/hpc/hpciovar.h> /* I/O manager */ 55 56 #include <machine/debug.h> 57 58 int ucbio_match(device_t, cfdata_t, void *); 59 void ucbio_attach(device_t, device_t, void *); 60 61 struct betty_port_status { 62 u_int16_t dir; 63 u_int16_t in, out; 64 }; 65 66 struct ucbio_softc { 67 device_t sc_dev; 68 tx_chipset_tag_t sc_tc; 69 70 struct betty_port_status sc_stat, sc_ostat; 71 struct hpcio_chip sc_hc; 72 }; 73 74 CFATTACH_DECL_NEW(ucbio, sizeof(struct ucbio_softc), 75 ucbio_match, ucbio_attach, NULL, NULL); 76 77 /* I/O */ 78 static int betty_in(hpcio_chip_t, int); 79 static void betty_out(hpcio_chip_t, int, int); 80 /* interrupt */ 81 static hpcio_intr_handle_t betty_intr_establish(hpcio_chip_t, int, int, 82 int (*)(void *), void *); 83 static void betty_intr_disestablish(hpcio_chip_t, void *); 84 /* debug */ 85 static void betty_update(hpcio_chip_t); 86 static void betty_dump(hpcio_chip_t); 87 88 int 89 ucbio_match(device_t parent, cfdata_t cf, void *aux) 90 { 91 return (1); 92 } 93 94 void 95 ucbio_attach(device_t parent, device_t self, void *aux) 96 { 97 struct ucb1200_attach_args *ucba = aux; 98 struct ucbio_softc *sc = device_private(self); 99 struct hpcio_chip *hc = &sc->sc_hc; 100 101 sc->sc_dev = self; 102 sc->sc_tc = ucba->ucba_tc; 103 printf("\n"); 104 105 hc->hc_sc = sc; 106 hc->hc_chipid = 2; 107 hc->hc_name = "UCB1200"; 108 hc->hc_portread = betty_in; 109 hc->hc_portwrite = betty_out; 110 hc->hc_intr_establish = betty_intr_establish; 111 hc->hc_intr_disestablish = betty_intr_disestablish; 112 hc->hc_update = betty_update; 113 hc->hc_dump = betty_dump; 114 115 tx_conf_register_ioman(sc->sc_tc, hc); 116 117 hpcio_update(hc); 118 hpcio_dump(hc); 119 } 120 121 /* basic I/O */ 122 static void 123 betty_out(hpcio_chip_t hc, int port, int onoff) 124 { 125 struct ucbio_softc *sc = hc->hc_sc; 126 tx_chipset_tag_t tc = sc->sc_tc; 127 txreg_t reg, pos; 128 129 pos = 1 << port; 130 reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 131 if (onoff) 132 reg |= pos; 133 else 134 reg &= ~pos; 135 txsibsf0_reg_write(tc, UCB1200_IO_DATA_REG, reg); 136 } 137 138 static int 139 betty_in(hpcio_chip_t hc, int port) 140 { 141 struct ucbio_softc *sc = hc->hc_sc; 142 tx_chipset_tag_t tc = sc->sc_tc; 143 txreg_t reg = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 144 145 return (reg & (1 << port)); 146 } 147 148 /* interrupt method not implemented */ 149 static hpcio_intr_handle_t 150 betty_intr_establish(hpcio_chip_t hc, int port, int mode, int (*func)(void *), 151 void *func_arg) 152 { 153 struct ucbio_softc *sc = hc->hc_sc; 154 155 printf("%s: %s not implemented.\n", device_xname(sc->sc_dev), 156 __func__); 157 158 return (0); 159 } 160 161 static void 162 betty_intr_disestablish(hpcio_chip_t hc, void *ih) 163 { 164 struct ucbio_softc *sc = hc->hc_sc; 165 166 printf("%s: %s not implemented.\n", device_xname(sc->sc_dev), 167 __func__); 168 } 169 170 /* debug */ 171 static void 172 betty_update(hpcio_chip_t hc) 173 { 174 struct ucbio_softc *sc = hc->hc_sc; 175 tx_chipset_tag_t tc = sc->sc_tc; 176 struct betty_port_status *stat = &sc->sc_stat; 177 u_int16_t dir, data; 178 179 sc->sc_ostat = *stat; /* save old status */ 180 dir = stat->dir = txsibsf0_reg_read(tc, UCB1200_IO_DIR_REG); 181 data = txsibsf0_reg_read(tc, UCB1200_IO_DATA_REG); 182 stat->out = data & dir; 183 stat->in = data & ~dir; 184 } 185 186 static void 187 betty_dump(hpcio_chip_t hc) 188 { 189 #ifdef UCBIO_DEBUG 190 struct ucbio_softc *sc = hc->hc_sc; 191 struct betty_port_status *stat = &sc->sc_stat; 192 193 printf("[BETTY I/O]\n"); 194 printf("IN "); 195 dbg_bit_print(stat->in); 196 printf("OUT "); 197 dbg_bit_print(stat->out); 198 printf("DIR "); 199 dbg_bit_print(stat->dir); 200 #endif /* UCBIO_DEBUG */ 201 } 202
Indexes created Sun Sep 21 15:09:59 GMT 2025