1 /* $NetBSD: tx39ir.c,v 1.8 2005/12/11 12:17:34 christos 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 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: tx39ir.c,v 1.8 2005/12/11 12:17:34 christos Exp $"); 45 46 #undef TX39IRDEBUG 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 52 #include <machine/bus.h> 53 #include <machine/intr.h> 54 55 #include <hpcmips/tx/tx39var.h> 56 #include <hpcmips/tx/tx39icureg.h> 57 #include <hpcmips/tx/tx39irvar.h> 58 #include <hpcmips/tx/tx39irreg.h> 59 60 #include <hpcmips/tx/tx39clockreg.h> /* XXX */ 61 62 #ifdef TX39IRDEBUG 63 int tx39ir_debug = 1; 64 #define DPRINTF(arg) if (vrpiu_debug) printf arg; 65 #else 66 #define DPRINTF(arg) 67 #endif 68 69 int tx39ir_match(struct device *, struct cfdata *, void *); 70 void tx39ir_attach(struct device *, struct device *, void *); 71 72 struct tx39ir_softc { 73 struct device sc_dev; 74 struct device *sc_parent; 75 tx_chipset_tag_t sc_tc; 76 }; 77 78 #ifdef TX39IRDEBUG 79 static void tx39ir_dump(struct tx39ir_softc *); 80 #endif 81 #if not_required_yet 82 static int tx39ir_intr(void *); 83 #endif 84 85 CFATTACH_DECL(tx39ir, sizeof(struct tx39ir_softc), 86 tx39ir_match, tx39ir_attach, NULL, NULL); 87 88 int 89 tx39ir_match(struct device *parent, struct cfdata *cf, void *aux) 90 { 91 return (ATTACH_NORMAL); 92 } 93 94 void 95 tx39ir_attach(struct device *parent, struct device *self, void *aux) 96 { 97 struct txcom_attach_args *tca = aux; 98 struct tx39ir_softc *sc = (void*)self; 99 tx_chipset_tag_t tc; 100 txreg_t reg; 101 102 sc->sc_tc = tc = tca->tca_tc; 103 sc->sc_parent = tca->tca_parent; 104 105 printf("\n"); 106 107 /* setup IR module */ 108 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 109 reg |= TX39_IRCTRL1_RXPWR; 110 tx_conf_write(tc, TX39_IRCTRL1_REG, reg); 111 112 /* power up IR module */ 113 reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 114 reg |= TX39_CLOCK_ENIRCLK | TX39_CLOCK_ENUARTBCLK; 115 tx_conf_write(tc, TX39_CLOCKCTRL_REG, reg); 116 117 /* turn to pulse mode UARTB */ 118 txcom_pulse_mode(sc->sc_parent); 119 120 #if not_required_yet 121 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_CARSTINT), 122 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 123 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_POSCARINT), 124 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 125 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_NEGCARINT), 126 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 127 #endif 128 129 #ifdef TX39IRDEBUG 130 tx39ir_dump(sc); 131 #endif 132 } 133 134 #ifdef TX39IRDEBUG 135 void 136 tx39ir_dump(struct tx39ir_softc *sc) 137 { 138 tx_chipset_tag_t tc = sc->sc_tc; 139 txreg_t reg; 140 141 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 142 #define ISSETPRINT(r, m) dbg_bitmask_print((u_int32_t)(r), \ 143 TX39_IRCTRL1_##m, #m) 144 ISSETPRINT(reg, CARDET); 145 ISSETPRINT(reg, TESTIR); 146 ISSETPRINT(reg, DTINVERT); 147 ISSETPRINT(reg, RXPWR); 148 ISSETPRINT(reg, ENSTATE); 149 ISSETPRINT(reg, ENCOMSM); 150 #undef ISSETPRINT 151 printf("baudval %d\n", TX39_IRCTRL1_BAUDVAL(reg)); 152 } 153 #endif 154 155 #if not_required_yet 156 int 157 tx39ir_intr(void *arg) 158 { 159 return (0); 160 } 161 #endif 162