1 /* $NetBSD: yamon.c,v 1.1 2002/03/07 14:43:59 simonb Exp $ */ 2 3 /* 4 * Copyright 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Simon Burge for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* XXX move to arch/mips/yamon/yamon.c or similar? */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 44 #include <dev/cons.h> 45 46 #include <machine/yamon.h> 47 48 static int yamongetc(dev_t); 49 static void yamonputc(dev_t, int); 50 51 /* 52 * Default consdev, for errors or warnings before 53 * consinit runs: use the PROM. 54 */ 55 struct consdev yamon_promcd = { 56 NULL, /* probe */ 57 NULL, /* init */ 58 yamongetc, /* getc */ 59 yamonputc, /* putc */ 60 nullcnpollc, /* pollc */ 61 NULL, /* bell */ 62 makedev(0, 0), 63 CN_DEAD, 64 }; 65 /* 66 * Get character from PROM console. 67 */ 68 static int 69 yamongetc(dev) 70 dev_t dev; 71 { 72 char chr; 73 74 while (!YAMON_GETCHAR(&chr)) 75 /* nothing */; 76 return chr; 77 } 78 79 /* 80 * Print a character on PROM console. 81 */ 82 static void 83 yamonputc(dev_t dev, int c) 84 { 85 char chr; 86 87 chr = c; 88 YAMON_PRINT_COUNT(&chr, 1); 89 } 90 91 char * 92 yamon_getenv(char *name) 93 { 94 yamon_env_var *yev = yamon_envp; 95 96 if (yev == NULL) 97 return (NULL); 98 while (yev->name != NULL) { 99 if (strcmp(yev->name, name) == 0) 100 return (yev->val); 101 yev++; 102 } 103 104 return (NULL); 105 } 106 107 void 108 yamon_print(char *str) 109 { 110 111 YAMON_PRINT(str); 112 } 113 114 void 115 yamon_exit(uint32_t rc) 116 { 117 118 YAMON_EXIT(rc); 119 } 120