1 /* $NetBSD: com_ebus.c,v 1.12 2002/03/20 18:54:46 eeh 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 cdev_decl(com); /* XXX this belongs elsewhere */ 57 58 int com_ebus_match __P((struct device *, struct cfdata *, void *)); 59 void com_ebus_attach __P((struct device *, struct device *, void *)); 60 61 struct cfattach com_ebus_ca = { 62 sizeof(struct com_softc), com_ebus_match, com_ebus_attach 63 }; 64 65 static char *com_names[] = { 66 "su", 67 "su_pnp", 68 NULL 69 }; 70 71 int 72 com_ebus_match(parent, match, aux) 73 struct device *parent; 74 struct cfdata *match; 75 void *aux; 76 { 77 struct ebus_attach_args *ea = aux; 78 int i; 79 80 for (i=0; com_names[i]; i++) 81 if (strcmp(ea->ea_name, com_names[i]) == 0) 82 return (1); 83 84 if (strcmp(ea->ea_name, "serial") == 0) { 85 char compat[80]; 86 87 /* Could be anything. */ 88 if ((i = OF_getproplen(ea->ea_node, "compatible")) && 89 OF_getprop(ea->ea_node, "compatible", compat, 90 sizeof(compat)) == i) { 91 if (strcmp(compat, "su16550") == 0 || 92 strcmp(compat, "su") == 0) { 93 return (1); 94 } 95 } 96 } 97 return (0); 98 } 99 100 #define BAUD_BASE (1846200) 101 102 void 103 com_ebus_attach(parent, self, aux) 104 struct device *parent, *self; 105 void *aux; 106 { 107 struct com_softc *sc = (void *)self; 108 struct ebus_attach_args *ea = aux; 109 struct kbd_ms_tty_attach_args kma; 110 #if (NKBD > 0) || (NMS > 0) 111 int maj; 112 #endif 113 int i; 114 int com_is_input; 115 int com_is_output; 116 117 sc->sc_iot = ea->ea_bustag; 118 sc->sc_iobase = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 119 /* 120 * Addresses that shoud be supplied by the prom: 121 * - normal com registers 122 * - ns873xx configuration registers 123 * - DMA space 124 * The `com' driver does not use DMA accesses, so we can 125 * ignore that for now. We should enable the com port in 126 * the ns873xx registers here. XXX 127 * 128 * Use the prom address if there. 129 */ 130 131 if (ea->ea_nvaddr) 132 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0], 133 &sc->sc_ioh); 134 else if (bus_space_map(sc->sc_iot, EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 135 ea->ea_reg[0].size, 0, &sc->sc_ioh) != 0) { 136 printf(": can't map register space\n"); 137 return; 138 } 139 sc->sc_hwflags = 0; 140 sc->sc_frequency = BAUD_BASE; 141 142 for (i = 0; i < ea->ea_nintr; i++) 143 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i], 144 IPL_SERIAL, 0, comintr, sc); 145 146 kma.kmta_consdev = NULL; 147 148 /* Figure out if we're the console. */ 149 com_is_input = (ea->ea_node == OF_instance_to_package(OF_stdin())); 150 com_is_output = (ea->ea_node == OF_instance_to_package(OF_stdout())); 151 152 if (com_is_input || com_is_output) { 153 extern struct consdev comcons; 154 struct consdev *cn_orig; 155 156 /* Record some info to attach console. */ 157 kma.kmta_baud = 9600; 158 kma.kmta_cflag = (CREAD | CS8 | HUPCL); 159 160 /* Attach com as the console. */ 161 cn_orig = cn_tab; 162 if (comcnattach(sc->sc_iot, sc->sc_iobase, kma.kmta_baud, 163 sc->sc_frequency, kma.kmta_cflag)) { 164 printf("Error: comcnattach failed\n"); 165 } 166 cn_tab = cn_orig; 167 if (com_is_input) { 168 cn_tab->cn_dev = comcons.cn_dev; 169 cn_tab->cn_probe = comcons.cn_probe; 170 cn_tab->cn_init = comcons.cn_init; 171 cn_tab->cn_getc = comcons.cn_getc; 172 cn_tab->cn_pollc = comcons.cn_pollc; 173 } 174 if (com_is_output) { 175 cn_tab->cn_putc = comcons.cn_putc; 176 } 177 kma.kmta_consdev = cn_tab; 178 } 179 /* Now attach the driver */ 180 com_attach_subr(sc); 181 182 #if (NKBD > 0) || (NMS > 0) 183 kma.kmta_tp = sc->sc_tty; 184 /* If we figure out we're the console we should point this to our consdev */ 185 186 /* locate the major number */ 187 for (maj = 0; maj < nchrdev; maj++) 188 if (cdevsw[maj].d_open == comopen) 189 break; 190 191 kma.kmta_dev = makedev(maj, sc->sc_dev.dv_unit); 192 193 /* Attach 'em if we got 'em. */ 194 #if (NKBD > 0) 195 kma.kmta_name = "keyboard"; 196 if (OF_getproplen(ea->ea_node, kma.kmta_name) == 0) { 197 config_found(self, (void *)&kma, NULL); 198 } 199 #endif 200 #if (NMS > 0) 201 kma.kmta_name = "mouse"; 202 if (OF_getproplen(ea->ea_node, kma.kmta_name) == 0) { 203 config_found(self, (void *)&kma, NULL); 204 } 205 #endif 206 #endif 207 if (kma.kmta_consdev) { 208 /* 209 * If we're the keyboard then we need the original 210 * cn_tab w/prom I/O, which sunkbd copied into kma. 211 * Otherwise we want conscom which we copied into 212 * kma.kmta_consdev. 213 */ 214 cn_tab = kma.kmta_consdev; 215 } 216 } 217 218