1 /* $NetBSD: consinit.c,v 1.28 2015/03/02 14:17:06 nakayama Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 Eduardo E. Horvath 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 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.28 2015/03/02 14:17:06 nakayama Exp $"); 33 34 #include "opt_ddb.h" 35 #include "pcons.h" 36 #include "ukbd.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/conf.h> 41 #include <sys/device.h> 42 #include <sys/file.h> 43 #include <sys/ioctl.h> 44 #include <sys/kernel.h> 45 #include <sys/proc.h> 46 #include <sys/tty.h> 47 #include <sys/time.h> 48 #include <sys/syslog.h> 49 50 #include <machine/autoconf.h> 51 #include <machine/openfirm.h> 52 #include <machine/bsd_openprom.h> 53 #include <machine/cpu.h> 54 #include <machine/eeprom.h> 55 #include <machine/psl.h> 56 #include <machine/z8530var.h> 57 #include <machine/sparc64.h> 58 59 #include <dev/cons.h> 60 61 #include <sparc64/dev/cons.h> 62 63 #include <dev/usb/ukbdvar.h> 64 65 static void prom_cnprobe(struct consdev *); 66 static void prom_cninit(struct consdev *); 67 int prom_cngetc(dev_t); 68 static void prom_cnputc(dev_t, int); 69 static void prom_cnpollc(dev_t, int); 70 71 /* 72 * The console is set to this one initially, 73 * which lets us use the PROM until consinit() 74 * is called to select a real console. 75 */ 76 struct consdev consdev_prom = { 77 .cn_probe = prom_cnprobe, 78 .cn_init = prom_cninit, 79 .cn_getc = prom_cngetc, 80 .cn_putc = prom_cnputc, 81 .cn_pollc = prom_cnpollc, 82 }; 83 84 void 85 prom_cnprobe(struct consdev *cd) 86 { 87 #if NPCONS > 0 88 int maj; 89 extern const struct cdevsw pcons_cdevsw; 90 91 maj = cdevsw_lookup_major(&pcons_cdevsw); 92 cd->cn_dev = makedev(maj, 0); 93 cd->cn_pri = CN_INTERNAL; 94 #endif 95 } 96 97 int 98 prom_cngetc(dev_t dev) 99 { 100 unsigned char ch = '\0'; 101 int l; 102 #ifdef DDB 103 static int nplus = 0; 104 #endif 105 106 while ((l = prom_read(prom_stdin(), &ch, 1)) != 1) 107 /* void */; 108 #ifdef DDB 109 if (ch == '+') { 110 if (nplus++ > 3) Debugger(); 111 } else nplus = 0; 112 #endif 113 if (ch == '\r') 114 ch = '\n'; 115 return ch; 116 } 117 118 static void 119 prom_cninit(struct consdev *cn) 120 { 121 } 122 123 /* 124 * PROM console output putchar. 125 */ 126 static void 127 prom_cnputc(dev_t dev, int c) 128 { 129 int s; 130 char c0 = (c & 0x7f); 131 132 s = splhigh(); 133 prom_write(prom_stdout(), &c0, 1); 134 splx(s); 135 } 136 137 void 138 prom_cnpollc(dev_t dev, int on) 139 { 140 if (on) { 141 /* Entering debugger. */ 142 #if NFB > 0 143 fb_unblank(); 144 #endif 145 } else { 146 /* Resuming kernel. */ 147 } 148 #if NPCONS > 0 149 pcons_cnpollc(dev, on); 150 #endif 151 } 152 153 /*****************************************************************/ 154 155 #ifdef DEBUG 156 #define DBPRINT(x) prom_printf x 157 #else 158 #define DBPRINT(x) 159 #endif 160 161 int prom_stdin_node; 162 int prom_stdout_node; 163 164 /* 165 * This function replaces sys/dev/cninit.c 166 * Determine which device is the console using 167 * the PROM "input source" and "output sink". 168 */ 169 void 170 consinit(void) 171 { 172 char buffer[128]; 173 const char *consname = "unknown"; 174 175 DBPRINT(("consinit()\n")); 176 177 if (cn_tab != &consdev_prom) 178 return; 179 180 if ((prom_stdin_node = prom_instance_to_package(prom_stdin())) == 0) { 181 printf("WARNING: no PROM stdin\n"); 182 } 183 DBPRINT(("stdin node = %x\n", prom_stdin_node)); 184 185 if ((prom_stdout_node = prom_instance_to_package(prom_stdout())) == 0) 186 printf("WARNING: no PROM stdout\n"); 187 DBPRINT(("stdout package = %x\n", prom_stdout_node)); 188 189 DBPRINT(("buffer @ %p\n", buffer)); 190 191 if (prom_stdin_node != 0 && 192 (prom_getproplen(prom_stdin_node, "keyboard") >= 0)) { 193 #if NUKBD > 0 194 if ((OF_instance_to_path(prom_stdin(), buffer, sizeof(buffer)) >= 0) && 195 (strstr(buffer, "/usb@") != NULL)) { 196 /* 197 * If we have a USB keyboard, it will show up as (e.g.) 198 * /pci@1f,0/usb@c,3/keyboard@1 (Blade 100) 199 */ 200 consname = "usb-keyboard/display"; 201 ukbd_cnattach(); 202 } else 203 #endif 204 consname = "sun-keyboard/display"; 205 } else if (prom_stdin_node != 0 && 206 (OF_instance_to_path(prom_stdin(), buffer, sizeof(buffer)) >= 0)) { 207 consname = buffer; 208 } 209 DBPRINT(("console is %s\n", consname)); 210 #ifndef DEBUG 211 (void)consname; 212 #endif 213 214 /* Initialize PROM console */ 215 (*cn_tab->cn_probe)(cn_tab); 216 (*cn_tab->cn_init)(cn_tab); 217 } 218
Indexes created Sat Sep 20 22:09:52 GMT 2025