1 /* $NetBSD: tx39ir.c,v 1.4 2002/01/29 18:53:17 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 * TX39 IR module (connected to UARTB) 41 */ 42 #undef TX39IRDEBUG 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/tx39icureg.h> 53 #include <hpcmips/tx/tx39irvar.h> 54 #include <hpcmips/tx/tx39irreg.h> 55 56 #include <hpcmips/tx/tx39clockreg.h> /* XXX */ 57 58 #ifdef TX39IRDEBUG 59 int tx39ir_debug = 1; 60 #define DPRINTF(arg) if (vrpiu_debug) printf arg; 61 #else 62 #define DPRINTF(arg) 63 #endif 64 65 int tx39ir_match(struct device *, struct cfdata *, void *); 66 void tx39ir_attach(struct device *, struct device *, void *); 67 68 struct tx39ir_softc { 69 struct device sc_dev; 70 struct device *sc_parent; 71 tx_chipset_tag_t sc_tc; 72 }; 73 74 #ifdef TX39IRDEBUG 75 static void tx39ir_dump(struct tx39ir_softc *); 76 #endif 77 #if not_required_yet 78 static int tx39ir_intr(void *); 79 #endif 80 81 struct cfattach tx39ir_ca = { 82 sizeof(struct tx39ir_softc), tx39ir_match, tx39ir_attach 83 }; 84 85 int 86 tx39ir_match(struct device *parent, struct cfdata *cf, void *aux) 87 { 88 return (ATTACH_NORMAL); 89 } 90 91 void 92 tx39ir_attach(struct device *parent, struct device *self, void *aux) 93 { 94 struct txcom_attach_args *tca = aux; 95 struct tx39ir_softc *sc = (void*)self; 96 tx_chipset_tag_t tc; 97 txreg_t reg; 98 99 sc->sc_tc = tc = tca->tca_tc; 100 sc->sc_parent = tca->tca_parent; 101 102 printf("\n"); 103 104 /* setup IR module */ 105 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 106 reg |= TX39_IRCTRL1_RXPWR; 107 tx_conf_write(tc, TX39_IRCTRL1_REG, reg); 108 109 /* power up IR module */ 110 reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 111 reg |= TX39_CLOCK_ENIRCLK | TX39_CLOCK_ENUARTBCLK; 112 tx_conf_write(tc, TX39_CLOCKCTRL_REG, reg); 113 114 /* turn to pulse mode UARTB */ 115 txcom_pulse_mode(sc->sc_parent); 116 117 #if not_required_yet 118 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_CARSTINT), 119 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 120 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_POSCARINT), 121 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 122 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_NEGCARINT), 123 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 124 #endif 125 126 #ifdef TX39IRDEBUG 127 tx39ir_dump(sc); 128 #endif 129 } 130 131 #ifdef TX39IRDEBUG 132 void 133 tx39ir_dump(struct tx39ir_softc *sc) 134 { 135 tx_chipset_tag_t tc = sc->sc_tc; 136 txreg_t reg; 137 138 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 139 #define ISSETPRINT(r, m) dbg_bitmask_print((u_int32_t)(r), \ 140 TX39_IRCTRL1_##m, #m) 141 ISSETPRINT(reg, CARDET); 142 ISSETPRINT(reg, TESTIR); 143 ISSETPRINT(reg, DTINVERT); 144 ISSETPRINT(reg, RXPWR); 145 ISSETPRINT(reg, ENSTATE); 146 ISSETPRINT(reg, ENCOMSM); 147 #undef ISSETPRINT 148 printf("baudval %d\n", TX39_IRCTRL1_BAUDVAL(reg)); 149 } 150 #endif 151 152 #if not_required_yet 153 int 154 tx39ir_intr(void *arg) 155 { 156 return (0); 157 } 158 #endif 159