1 /* $NetBSD: com_ebus.c,v 1.17 2002/10/02 16:02:18 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000 Matthew R. Green 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * NS Super I/O PC87332VLJ "com" to ebus attachment 33 */ 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 #include <sys/tty.h> 40 #include <sys/conf.h> 41 42 #include <machine/bus.h> 43 #include <machine/autoconf.h> 44 #include <machine/openfirm.h> 45 46 #include <dev/ebus/ebusreg.h> 47 #include <dev/ebus/ebusvar.h> 48 49 #include <dev/cons.h> 50 #include <dev/ic/comvar.h> 51 #include <dev/sun/kbd_ms_ttyvar.h> 52 53 #include "kbd.h" 54 #include "ms.h" 55 56 int com_ebus_match __P((struct device *, struct cfdata *, void *)); 57 void com_ebus_attach __P((struct device *, struct device *, void *)); 58 59 CFATTACH_DECL(com_ebus, sizeof(struct com_softc), 60 com_ebus_match, com_ebus_attach, NULL, NULL); 61 62 static char *com_names[] = { 63 "su", 64 "su_pnp", 65 NULL 66 }; 67 68 int 69 com_ebus_match(parent, match, aux) 70 struct device *parent; 71 struct cfdata *match; 72 void *aux; 73 { 74 struct ebus_attach_args *ea = aux; 75 int i; 76 77 for (i=0; com_names[i]; i++) 78 if (strcmp(ea->ea_name, com_names[i]) == 0) 79 return (1); 80 81 if (strcmp(ea->ea_name, "serial") == 0) { 82 char compat[80]; 83 84 /* Could be anything. */ 85 if ((i = OF_getproplen(ea->ea_node, "compatible")) && 86 OF_getprop(ea->ea_node, "compatible", compat, 87 sizeof(compat)) == i) { 88 if (strcmp(compat, "su16550") == 0 || 89 strcmp(compat, "su") == 0) { 90 return (1); 91 } 92 } 93 } 94 return (0); 95 } 96 97 #define BAUD_BASE (1846200) 98 99 void 100 com_ebus_attach(parent, self, aux) 101 struct device *parent, *self; 102 void *aux; 103 { 104 struct com_softc *sc = (void *)self; 105 struct ebus_attach_args *ea = aux; 106 struct kbd_ms_tty_attach_args kma; 107 #if (NKBD > 0) || (NMS > 0) 108 int maj; 109 extern const struct cdevsw com_cdevsw; 110 #endif 111 int i; 112 int com_is_input; 113 int com_is_output; 114 115 sc->sc_iot = ea->ea_bustag; 116 sc->sc_iobase = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 117 /* 118 * Addresses that should be supplied by the prom: 119 * - normal com registers 120 * - ns873xx configuration registers 121 * - DMA space 122 * The `com' driver does not use DMA accesses, so we can 123 * ignore that for now. We should enable the com port in 124 * the ns873xx registers here. XXX 125 * 126 * Use the prom address if there. 127 */ 128 129 if (ea->ea_nvaddr) 130 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 131 &sc->sc_ioh); 132 else if (bus_space_map(sc->sc_iot, EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 133 ea->ea_reg[0].size, 0, &sc->sc_ioh) != 0) { 134 printf(": can't map register space\n"); 135 return; 136 } 137 sc->sc_hwflags = 0; 138 sc->sc_frequency = BAUD_BASE; 139 140 for (i = 0; i < ea->ea_nintr; i++) 141 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 142 IPL_SERIAL, 0, comintr, sc); 143 144 kma.kmta_consdev = NULL; 145 146 /* Figure out if we're the console. */ 147 com_is_input = (ea->ea_node == OF_instance_to_package(OF_stdin())); 148 com_is_output = (ea->ea_node == OF_instance_to_package(OF_stdout())); 149 150 if (com_is_input || com_is_output) { 151 extern struct consdev comcons; 152 struct consdev *cn_orig; 153 154 /* Record some info to attach console. */ 155 kma.kmta_baud = 9600; 156 kma.kmta_cflag = (CREAD | CS8 | HUPCL); 157 158 /* Attach com as the console. */ 159 cn_orig = cn_tab; 160 if (comcnattach(sc->sc_iot, sc->sc_iobase, kma.kmta_baud, 161 sc->sc_frequency, kma.kmta_cflag)) { 162 printf("Error: comcnattach failed\n"); 163 } 164 cn_tab = cn_orig; 165 if (com_is_input) { 166 cn_tab->cn_dev = comcons.cn_dev; 167 cn_tab->cn_probe = comcons.cn_probe; 168 cn_tab->cn_init = comcons.cn_init; 169 cn_tab->cn_getc = comcons.cn_getc; 170 cn_tab->cn_pollc = comcons.cn_pollc; 171 } 172 if (com_is_output) { 173 cn_tab->cn_putc = comcons.cn_putc; 174 } 175 kma.kmta_consdev = cn_tab; 176 } 177 /* Now attach the driver */ 178 com_attach_subr(sc); 179 180 #if (NKBD > 0) || (NMS > 0) 181 kma.kmta_tp = sc->sc_tty; 182 /* If we figure out we're the console we should point this to our consdev */ 183 184 /* locate the major number */ 185 maj = cdevsw_lookup_major(&com_cdevsw); 186 187 kma.kmta_dev = makedev(maj, sc->sc_dev.dv_unit); 188 189 /* Attach 'em if we got 'em. */ 190 #if (NKBD > 0) 191 kma.kmta_name = "keyboard"; 192 if (OF_getproplen(ea->ea_node, kma.kmta_name) == 0) { 193 config_found(self, (void *)&kma, NULL); 194 } 195 #endif 196 #if (NMS > 0) 197 kma.kmta_name = "mouse"; 198 if (OF_getproplen(ea->ea_node, kma.kmta_name) == 0) { 199 config_found(self, (void *)&kma, NULL); 200 } 201 #endif 202 #endif 203 if (kma.kmta_consdev) { 204 /* 205 * If we're the keyboard then we need the original 206 * cn_tab w/prom I/O, which sunkbd copied into kma. 207 * Otherwise we want conscom which we copied into 208 * kma.kmta_consdev. 209 */ 210 cn_tab = kma.kmta_consdev; 211 } 212 } 213 214