1 /* $NetBSD: cons.c,v 1.10 2011/02/08 20:20:11 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah Hdr: cons.c 1.7 92/02/28 37 * 38 * @(#)cons.c 8.1 (Berkeley) 6/10/93 39 */ 40 41 #include <lib/libsa/stand.h> 42 43 #include <machine/cpu.h> 44 45 #include "boot.h" 46 #include "cons.h" 47 48 #ifdef CONS_SERIAL 49 void comcnprobe(struct consdev *); 50 void comcninit(struct consdev *); 51 void comcnputchar(void *, int); 52 int comcngetchar(void *); 53 int comcnscan(void *); 54 # include "ns16550.h" 55 # ifndef COMPORT 56 # define COMPORT COM1 57 # endif 58 # ifndef COMSPEED 59 # define COMSPEED 9600 60 # endif 61 #endif 62 63 #ifdef CONS_ZS 64 void zscnprobe(struct consdev *); 65 void zscninit(struct consdev *); 66 void zscnputchar(void *, int); 67 int zscngetchar(void *); 68 int zscnscan(void *); 69 #include "zs.h" 70 #ifndef ZSCHAN 71 #define ZSCHAN ZS_CHAN_A 72 #endif 73 #ifndef ZSSPEED 74 #define ZSSPEED 115200 75 #endif 76 #endif 77 78 struct consdev constab[] = { 79 #ifdef CONS_SERIAL 80 { "com", COMPORT, COMSPEED, 81 comcnprobe, comcninit, comcngetchar, comcnputchar, comcnscan }, 82 #endif 83 #ifdef CONS_ZS 84 { "zs", ZSCHAN, ZSSPEED, 85 zscnprobe, zscninit, zscngetchar, zscnputchar, zscnscan }, 86 #endif 87 { 0 } 88 }; 89 90 struct consdev *cn_tab; 91 92 char * 93 cninit(int *addr, int *speed) 94 { 95 register struct consdev *cp; 96 97 cn_tab = NULL; 98 for (cp = constab; cp->cn_probe; cp++) { 99 (*cp->cn_probe)(cp); 100 if (cp->cn_pri > CN_DEAD && 101 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 102 cn_tab = cp; 103 } 104 if (cn_tab) { 105 (*cn_tab->cn_init)(cn_tab); 106 *addr = cn_tab->address; 107 *speed = cn_tab->speed; 108 return cn_tab->cn_name; 109 } 110 111 return NULL; 112 } 113 114 int 115 cngetc(void) 116 { 117 118 if (cn_tab) 119 return (*cn_tab->cn_getc)(cn_tab->cn_dev); 120 return 0; 121 } 122 123 void 124 cnputc(int c) 125 { 126 127 if (cn_tab) 128 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 129 } 130 131 int 132 cnscan(void) 133 { 134 135 if (cn_tab) 136 return (*cn_tab->cn_scan)(cn_tab->cn_dev); 137 return -1; 138 } 139 140 #ifdef CONS_SERIAL 141 /* 142 * serial console 143 */ 144 void 145 comcnprobe(struct consdev *cp) 146 { 147 148 if (*((uint32_t *)COMPROBE) != 0 && 149 cobalt_id != COBALT_ID_QUBE2700) 150 cp->cn_pri = CN_REMOTE; 151 } 152 153 void 154 comcninit(struct consdev *cp) 155 { 156 157 cp->cn_dev = com_init(cp->address, cp->speed); 158 } 159 160 int 161 comcngetchar(void *dev) 162 { 163 164 return com_getc(dev); 165 } 166 167 void 168 comcnputchar(void *dev, int c) 169 { 170 171 if (c == '\n') 172 com_putc(dev, '\r'); 173 com_putc(dev, c); 174 } 175 176 int 177 comcnscan(void *dev) 178 { 179 180 return com_scankbd(dev); 181 } 182 #endif /* CONS_SERIAL */ 183 184 #ifdef CONS_ZS 185 /* 186 * optional z85c30 serial console on Qube2700 187 */ 188 void 189 zscnprobe(struct consdev *cp) 190 { 191 192 if (*((uint32_t *)ZSPROBE) != 0 && 193 cobalt_id == COBALT_ID_QUBE2700) 194 cp->cn_pri = CN_REMOTE; 195 } 196 197 void 198 zscninit(struct consdev *cp) 199 { 200 201 cp->cn_dev = zs_init(cp->address, cp->speed); 202 } 203 204 int 205 zscngetchar(void *dev) 206 { 207 208 return zs_getc(dev); 209 } 210 211 void 212 zscnputchar(void *dev, int c) 213 { 214 215 if (c == '\n') 216 zs_putc(dev, '\r'); 217 zs_putc(dev, c); 218 } 219 220 int 221 zscnscan(void *dev) 222 { 223 224 return zs_scan(dev); 225 } 226 #endif /* CONS_ZS */ 227