1 /* $NetBSD: tx39ir.c,v 1.10 2012/10/27 17:17:54 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 * TX39 IR module (connected to UARTB) 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: tx39ir.c,v 1.10 2012/10/27 17:17:54 chs 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(device_t, cfdata_t, void *); 63 void tx39ir_attach(device_t, device_t, void *); 64 65 struct tx39ir_softc { 66 device_t sc_parent; 67 tx_chipset_tag_t sc_tc; 68 }; 69 70 #ifdef TX39IRDEBUG 71 static void tx39ir_dump(struct tx39ir_softc *); 72 #endif 73 #if not_required_yet 74 static int tx39ir_intr(void *); 75 #endif 76 77 CFATTACH_DECL_NEW(tx39ir, sizeof(struct tx39ir_softc), 78 tx39ir_match, tx39ir_attach, NULL, NULL); 79 80 int 81 tx39ir_match(device_t parent, cfdata_t cf, void *aux) 82 { 83 return (ATTACH_NORMAL); 84 } 85 86 void 87 tx39ir_attach(device_t parent, device_t self, void *aux) 88 { 89 struct txcom_attach_args *tca = aux; 90 struct tx39ir_softc *sc = device_private(self); 91 tx_chipset_tag_t tc; 92 txreg_t reg; 93 94 sc->sc_tc = tc = tca->tca_tc; 95 sc->sc_parent = tca->tca_parent; 96 97 printf("\n"); 98 99 /* setup IR module */ 100 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 101 reg |= TX39_IRCTRL1_RXPWR; 102 tx_conf_write(tc, TX39_IRCTRL1_REG, reg); 103 104 /* power up IR module */ 105 reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 106 reg |= TX39_CLOCK_ENIRCLK | TX39_CLOCK_ENUARTBCLK; 107 tx_conf_write(tc, TX39_CLOCKCTRL_REG, reg); 108 109 /* turn to pulse mode UARTB */ 110 txcom_pulse_mode(sc->sc_parent); 111 112 #if not_required_yet 113 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_CARSTINT), 114 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 115 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_POSCARINT), 116 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 117 tx_intr_establish(tc, MAKEINTR(5, TX39_INTRSTATUS5_NEGCARINT), 118 IST_EDGE, IPL_TTY, tx39ir_intr, sc); 119 #endif 120 121 #ifdef TX39IRDEBUG 122 tx39ir_dump(sc); 123 #endif 124 } 125 126 #ifdef TX39IRDEBUG 127 void 128 tx39ir_dump(struct tx39ir_softc *sc) 129 { 130 tx_chipset_tag_t tc = sc->sc_tc; 131 txreg_t reg; 132 133 reg = tx_conf_read(tc, TX39_IRCTRL1_REG); 134 #define ISSETPRINT(r, m) dbg_bitmask_print((u_int32_t)(r), \ 135 TX39_IRCTRL1_##m, #m) 136 ISSETPRINT(reg, CARDET); 137 ISSETPRINT(reg, TESTIR); 138 ISSETPRINT(reg, DTINVERT); 139 ISSETPRINT(reg, RXPWR); 140 ISSETPRINT(reg, ENSTATE); 141 ISSETPRINT(reg, ENCOMSM); 142 #undef ISSETPRINT 143 printf("baudval %d\n", TX39_IRCTRL1_BAUDVAL(reg)); 144 } 145 #endif 146 147 #if not_required_yet 148 int 149 tx39ir_intr(void *arg) 150 { 151 return (0); 152 } 153 #endif 154