1 /* $NetBSD: com_frodo.c,v 1.11 2024/01/16 05:48:28 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 * Copyright (c) 1991 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)com.c 7.5 (Berkeley) 5/16/91 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: com_frodo.c,v 1.11 2024/01/16 05:48:28 thorpej Exp $"); 65 66 #include "sti_sgc.h" 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/device.h> 71 #include <sys/termios.h> 72 #include <sys/ttydefaults.h> 73 74 #include <machine/bus.h> 75 76 #include <dev/ic/comreg.h> 77 #include <dev/ic/comvar.h> 78 79 #include <hp300/dev/intiovar.h> 80 #include <hp300/dev/frodoreg.h> 81 #include <hp300/dev/frodovar.h> 82 #include <hp300/dev/com_frodovar.h> 83 84 #include "ioconf.h" 85 86 struct com_frodo_softc { 87 struct com_softc sc_com; /* real "com" softc */ 88 }; 89 90 static int com_frodo_match(device_t, cfdata_t , void *); 91 static void com_frodo_attach(device_t, device_t, void *); 92 93 CFATTACH_DECL_NEW(com_frodo, sizeof(struct com_frodo_softc), 94 com_frodo_match, com_frodo_attach, NULL, NULL); 95 96 static int com_frodo_speed = TTYDEF_SPEED; 97 static struct bus_space_tag comcntag; 98 99 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 100 #define COM_FRODO_FREQ 8006400 101 102 static int 103 com_frodo_match(device_t parent, cfdata_t match, void *aux) 104 { 105 struct frodo_attach_args *fa = aux; 106 107 if (strcmp(fa->fa_name, com_cd.cd_name) != 0) 108 return 0; 109 110 switch (fa->fa_offset) { 111 case FRODO_APCI_OFFSET(1): 112 case FRODO_APCI_OFFSET(2): 113 case FRODO_APCI_OFFSET(3): 114 return 1; 115 } 116 117 return 0; 118 } 119 120 static void 121 com_frodo_attach(device_t parent, device_t self, void *aux) 122 { 123 struct com_frodo_softc *fsc = device_private(self); 124 struct com_softc *sc = &fsc->sc_com; 125 struct frodo_attach_args *fa = aux; 126 bus_space_tag_t iot; 127 bus_space_handle_t ioh; 128 int isconsole; 129 130 sc->sc_dev = self; 131 isconsole = com_is_console(&comcntag, fa->fa_base + fa->fa_offset, 132 &ioh); 133 134 if (isconsole) 135 iot = &comcntag; 136 else 137 iot = fa->fa_bst; 138 139 if (!isconsole && 140 bus_space_map(iot, fa->fa_base + fa->fa_offset, COM_NPORTS << 2, 141 0, &ioh)) { 142 aprint_error(": can't map i/o space\n"); 143 return; 144 } 145 com_init_regs(&sc->sc_regs, iot, ioh, fa->fa_base + fa->fa_offset); 146 147 sc->sc_frequency = COM_FRODO_FREQ; 148 SET(sc->sc_hwflags, COM_HW_NOIEN); 149 150 com_attach_subr(sc); 151 152 frodo_intr_establish(parent, comintr, sc, fa->fa_line, ISRPRI_TTY); 153 } 154 155 int 156 com_frodo_cnattach(bus_space_tag_t bst, bus_addr_t addr, int scode) 157 { 158 bus_space_tag_t iot = &comcntag; 159 bus_space_handle_t ioh; 160 volatile uint8_t *frodoregs; 161 162 if (machineid != HP_425 || mmuid != MMUID_425_E) 163 return 1; 164 165 /* 166 * Check the service switch. On the 425e, this is a physical 167 * switch, unlike other frodo-based machines, so we can use it 168 * as a serial vs internal video selector, since the PROM can not 169 * be configured for serial console. 170 */ 171 frodoregs = (volatile uint8_t *)IIOV(INTIOBASE + FRODO_BASE); 172 if (badaddr(__UNVOLATILE(frodoregs)) != 0) { 173 /* 425e but no frodo chip found? */ 174 return 1; 175 } 176 177 /* 178 * if sti(4) is not configured, we need serial console anyway 179 * and no need to check the service switch. 180 */ 181 #if NSTI_SGC > 0 182 if (ISSET(frodoregs[FRODO_IISR], FRODO_IISR_SERVICE)) 183 return 1; 184 #endif 185 186 frodo_init_bus_space(iot); 187 188 if (bus_space_map(iot, addr, INTIO_DEVSIZE, BUS_SPACE_MAP_LINEAR, &ioh)) 189 return 1; 190 191 comcnattach(iot, addr, com_frodo_speed, COM_FRODO_FREQ, 192 COM_TYPE_NORMAL, CONMODE); 193 194 return 0; 195 } 196
Indexes created Tue Sep 23 07:09:52 GMT 2025