1 /* $NetBSD: com_ebus.c,v 1.6 2001/07/24 19:27:10 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 <sparc64/dev/ebusreg.h> 47 #include <sparc64/dev/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 int com_ebus_isconsole __P((int node)); 61 62 struct cfattach com_ebus_ca = { 63 sizeof(struct com_softc), com_ebus_match, com_ebus_attach 64 }; 65 66 static char *com_names[] = { 67 "su", 68 "su_pnp", 69 NULL 70 }; 71 72 int 73 com_ebus_match(parent, match, aux) 74 struct device *parent; 75 struct cfdata *match; 76 void *aux; 77 { 78 struct ebus_attach_args *ea = aux; 79 int i; 80 81 for (i=0; com_names[i]; i++) 82 if (strcmp(ea->ea_name, com_names[i]) == 0) 83 return (1); 84 85 if (strcmp(ea->ea_name, "serial") == 0) { 86 char compat[80]; 87 88 /* Could be anything. */ 89 if ((i = OF_getproplen(ea->ea_node, "compatible")) && 90 OF_getprop(ea->ea_node, "compatible", compat, 91 sizeof(compat)) == i) { 92 if (strcmp(compat, "su16550") == 0 || 93 strcmp(compat, "su") == 0) { 94 return (1); 95 } 96 } 97 } 98 return (0); 99 } 100 101 int 102 com_ebus_isconsole(node) 103 int node; 104 { 105 if (node == OF_instance_to_package(OF_stdin())) { 106 return (1); 107 } 108 109 if (node == OF_instance_to_package(OF_stdout())) { 110 return (1); 111 } 112 return (0); 113 } 114 115 #define BAUD_BASE (1846200) 116 117 void 118 com_ebus_attach(parent, self, aux) 119 struct device *parent, *self; 120 void *aux; 121 { 122 struct com_softc *sc = (void *)self; 123 struct ebus_attach_args *ea = aux; 124 struct kbd_ms_tty_attach_args kma; 125 #if (NKBD > 0) || (NMS > 0) 126 int maj; 127 #endif 128 int i; 129 130 sc->sc_iot = ea->ea_bustag; 131 sc->sc_iobase = EBUS_PADDR_FROM_REG(&ea->ea_regs[0]); 132 /* 133 * Addresses that shoud be supplied by the prom: 134 * - normal com registers 135 * - ns873xx configuration registers 136 * - DMA space 137 * The `com' driver does not use DMA accesses, so we can 138 * ignore that for now. We should enable the com port in 139 * the ns873xx registers here. XXX 140 * 141 * Use the prom address if there. 142 */ 143 if (ea->ea_nvaddrs) 144 sc->sc_ioh = (bus_space_handle_t)ea->ea_vaddrs[0]; 145 else if (ebus_bus_map(sc->sc_iot, 0, 146 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), 147 ea->ea_regs[0].size, 148 BUS_SPACE_MAP_LINEAR, 149 0, &sc->sc_ioh) != 0) { 150 printf(": can't map register space\n"); 151 return; 152 } 153 sc->sc_hwflags = 0; 154 sc->sc_frequency = BAUD_BASE; 155 156 for (i = 0; i < ea->ea_nintrs; i++) 157 bus_intr_establish(ea->ea_bustag, ea->ea_intrs[i], 158 IPL_SERIAL, 0, comintr, sc); 159 160 kma.kmta_consdev = NULL; 161 if (com_ebus_isconsole(ea->ea_node)) { 162 extern struct consdev comcons; 163 164 /* Record some info to attach console. */ 165 kma.kmta_baud = 9600; 166 kma.kmta_cflag = (CREAD | CS8 | HUPCL); 167 kma.kmta_consdev = &comcons; 168 169 /* Attach com as the console. */ 170 if (comcnattach(sc->sc_iot, sc->sc_iobase, kma.kmta_baud, 171 sc->sc_frequency, kma.kmta_cflag)) { 172 printf("Error: comcnattach failed\n"); 173 } 174 } 175 /* Now attach the driver */ 176 com_attach_subr(sc); 177 178 #if (NKBD > 0) || (NMS > 0) 179 kma.kmta_tp = sc->sc_tty; 180 /* If we figure out we're the console we should point this to our consdev */ 181 182 /* locate the major number */ 183 for (maj = 0; maj < nchrdev; maj++) 184 if (cdevsw[maj].d_open == comopen) 185 break; 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