1 /* $NetBSD: com_mainbus.c,v 1.12 2011/07/19 15:17:20 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.12 2011/07/19 15:17:20 dyoung Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/device.h> 35 36 #include <sys/termios.h> 37 #include <dev/cons.h> 38 #include <sys/conf.h> 39 #include <sys/bus.h> 40 41 #include <machine/intr.h> 42 #include <machine/autoconf.h> 43 #include <machine/mmeye.h> 44 45 #include <dev/ic/comvar.h> 46 #include <dev/ic/comreg.h> 47 48 #ifndef COMCN_SPEED 49 #define COMCN_SPEED 19200 50 #endif 51 #ifndef CONADDR 52 #define CONADDR 0xa4000000 53 #endif 54 #ifndef CONMODE 55 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 56 #endif 57 58 struct com_mainbus_softc { 59 struct com_softc sc_com; /* real "com" softc */ 60 }; 61 62 int com_mainbus_match(device_t, cfdata_t , void *); 63 void com_mainbus_attach(device_t, device_t, void *); 64 void comcnprobe(struct consdev *); 65 void comcninit(struct consdev *); 66 67 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc), 68 com_mainbus_match, com_mainbus_attach, NULL, NULL); 69 70 int 71 com_mainbus_match(device_t parent, cfdata_t match, void *aux) 72 { 73 struct mainbus_attach_args *ma = aux; 74 75 if (strcmp(ma->ma_name, match->cf_name) == 0) 76 return (1); 77 78 return (0); 79 } 80 81 void 82 com_mainbus_attach(device_t parent, device_t self, void *aux) 83 { 84 struct mainbus_attach_args *ma = aux; 85 struct com_mainbus_softc *sc = device_private(self); 86 struct com_softc *csc = &sc->sc_com; 87 #if defined(SH7750R) 88 const bus_space_tag_t iot = SH3_BUS_SPACE_PCMCIA_IO8; 89 #else 90 const bus_space_tag_t iot = 0; 91 #endif 92 bus_space_handle_t ioh; 93 94 if (!com_is_console(iot, ma->ma_addr1, &ioh)) 95 if (bus_space_map(iot, ma->ma_addr1, COM_NPORTS, 0, &ioh)) { 96 aprint_error(": can't map i/o space\n"); 97 return; 98 } 99 csc->sc_dev = self; 100 csc->sc_frequency = COM_FREQ; 101 COM_INIT_REGS(csc->sc_regs, iot, ioh, ma->ma_addr1); 102 103 /* sanity check */ 104 if (!comprobe1(iot, ioh)) { 105 aprint_error(": device problem. don't attach.\n"); 106 return; 107 } 108 109 com_attach_subr(csc); 110 111 mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_SERIAL, comintr, sc); 112 } 113 114 void 115 comcnprobe(struct consdev *cp) 116 { 117 118 #ifdef COMCONSOLE 119 cp->cn_pri = CN_REMOTE; /* Force a serial port console */ 120 #else 121 cp->cn_pri = CN_NORMAL; 122 #endif 123 } 124 125 void 126 comcninit(struct consdev *cp) 127 { 128 #if defined(SH7750R) 129 const bus_space_tag_t iot = SH3_BUS_SPACE_PCMCIA_IO8; 130 #else 131 const bus_space_tag_t iot = 0; 132 #endif 133 134 comcnattach(iot, CONADDR, COMCN_SPEED, COM_FREQ, COM_TYPE_NORMAL, 135 CONMODE); 136 } 137