1 /* $NetBSD: tx39ir.c,v 1.6 2002/10/02 05:26:50 thorpej 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 CFATTACH_DECL(tx39ir, sizeof(struct tx39ir_softc), 82 tx39ir_match, tx39ir_attach, NULL, NULL); 83 84 int 85 tx39ir_match(struct device *parent, struct cfdata *cf, void *aux) 86 { 87 return (ATTACH_NORMAL); 88 } 89 90 void 91 tx39ir_attach(struct device *parent, struct device *self, void *aux) 92 { 93 struct txcom_attach_args *tca = aux; 94 struct tx39ir_softc *sc = (void*)self; 95 tx_chipset_tag_t tc; 96 txreg_t reg; 97 98 sc->sc_tc = tc = tca->tca_tc; 99 sc->sc_parent = tca->tca_parent; 100 101 printf("\n"); 102 103 /* setup IR module */ 104 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 105 reg |= TX39_IRCTRL1_RXPWR; 106 tx_conf_write(tc, TX39_IRCTRL1_REG, reg); 107 108 /* power up IR module */ 109 reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 110 reg |= TX39_CLOCK_ENIRCLK | TX39_CLOCK_ENUARTBCLK; 111 tx_conf_write(tc, TX39_CLOCKCTRL_REG, reg); 112 113 /* turn to pulse mode UARTB */ 114 txcom_pulse_mode(sc->sc_parent); 115 116 #if not_required_yet 117 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_CARSTINT), 118 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 119 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_POSCARINT), 120 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 121 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_NEGCARINT), 122 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 123 #endif 124 125 #ifdef TX39IRDEBUG 126 tx39ir_dump(sc); 127 #endif 128 } 129 130 #ifdef TX39IRDEBUG 131 void 132 tx39ir_dump(struct tx39ir_softc *sc) 133 { 134 tx_chipset_tag_t tc = sc->sc_tc; 135 txreg_t reg; 136 137 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 138 #define ISSETPRINT(r, m) dbg_bitmask_print((u_int32_t)(r), \ 139 TX39_IRCTRL1_##m, #m) 140 ISSETPRINT(reg, CARDET); 141 ISSETPRINT(reg, TESTIR); 142 ISSETPRINT(reg, DTINVERT); 143 ISSETPRINT(reg, RXPWR); 144 ISSETPRINT(reg, ENSTATE); 145 ISSETPRINT(reg, ENCOMSM); 146 #undef ISSETPRINT 147 printf("baudval %d\n", TX39_IRCTRL1_BAUDVAL(reg)); 148 } 149 #endif 150 151 #if not_required_yet 152 int 153 tx39ir_intr(void *arg) 154 { 155 return (0); 156 } 157 #endif 158