1 /* $NetBSD: tx39ir.c,v 1.9 2008/04/28 20:23:21 martin 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 * TX39 IR module (connected to UARTB) 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: tx39ir.c,v 1.9 2008/04/28 20:23:21 martin Exp $"); 38 39 #undef TX39IRDEBUG 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 48 #include <hpcmips/tx/tx39var.h> 49 #include <hpcmips/tx/tx39icureg.h> 50 #include <hpcmips/tx/tx39irvar.h> 51 #include <hpcmips/tx/tx39irreg.h> 52 53 #include <hpcmips/tx/tx39clockreg.h> /* XXX */ 54 55 #ifdef TX39IRDEBUG 56 int tx39ir_debug = 1; 57 #define DPRINTF(arg) if (vrpiu_debug) printf arg; 58 #else 59 #define DPRINTF(arg) 60 #endif 61 62 int tx39ir_match(struct device *, struct cfdata *, void *); 63 void tx39ir_attach(struct device *, struct device *, void *); 64 65 struct tx39ir_softc { 66 struct device sc_dev; 67 struct device *sc_parent; 68 tx_chipset_tag_t sc_tc; 69 }; 70 71 #ifdef TX39IRDEBUG 72 static void tx39ir_dump(struct tx39ir_softc *); 73 #endif 74 #if not_required_yet 75 static int tx39ir_intr(void *); 76 #endif 77 78 CFATTACH_DECL(tx39ir, sizeof(struct tx39ir_softc), 79 tx39ir_match, tx39ir_attach, NULL, NULL); 80 81 int 82 tx39ir_match(struct device *parent, struct cfdata *cf, void *aux) 83 { 84 return (ATTACH_NORMAL); 85 } 86 87 void 88 tx39ir_attach(struct device *parent, struct device *self, void *aux) 89 { 90 struct txcom_attach_args *tca = aux; 91 struct tx39ir_softc *sc = (void*)self; 92 tx_chipset_tag_t tc; 93 txreg_t reg; 94 95 sc->sc_tc = tc = tca->tca_tc; 96 sc->sc_parent = tca->tca_parent; 97 98 printf("\n"); 99 100 /* setup IR module */ 101 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 102 reg |= TX39_IRCTRL1_RXPWR; 103 tx_conf_write(tc, TX39_IRCTRL1_REG, reg); 104 105 /* power up IR module */ 106 reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 107 reg |= TX39_CLOCK_ENIRCLK | TX39_CLOCK_ENUARTBCLK; 108 tx_conf_write(tc, TX39_CLOCKCTRL_REG, reg); 109 110 /* turn to pulse mode UARTB */ 111 txcom_pulse_mode(sc->sc_parent); 112 113 #if not_required_yet 114 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_CARSTINT), 115 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 116 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_POSCARINT), 117 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 118 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_NEGCARINT), 119 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 120 #endif 121 122 #ifdef TX39IRDEBUG 123 tx39ir_dump(sc); 124 #endif 125 } 126 127 #ifdef TX39IRDEBUG 128 void 129 tx39ir_dump(struct tx39ir_softc *sc) 130 { 131 tx_chipset_tag_t tc = sc->sc_tc; 132 txreg_t reg; 133 134 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 135 #define ISSETPRINT(r, m) dbg_bitmask_print((u_int32_t)(r), \ 136 TX39_IRCTRL1_##m, #m) 137 ISSETPRINT(reg, CARDET); 138 ISSETPRINT(reg, TESTIR); 139 ISSETPRINT(reg, DTINVERT); 140 ISSETPRINT(reg, RXPWR); 141 ISSETPRINT(reg, ENSTATE); 142 ISSETPRINT(reg, ENCOMSM); 143 #undef ISSETPRINT 144 printf("baudval %d\n", TX39_IRCTRL1_BAUDVAL(reg)); 145 } 146 #endif 147 148 #if not_required_yet 149 int 150 tx39ir_intr(void *arg) 151 { 152 return (0); 153 } 154 #endif 155