12e601613SDavid Gibson /* 22e601613SDavid Gibson * OF console routines 32e601613SDavid Gibson * 42e601613SDavid Gibson * Copyright (C) Paul Mackerras 1997. 52e601613SDavid Gibson * 62e601613SDavid Gibson * This program is free software; you can redistribute it and/or 72e601613SDavid Gibson * modify it under the terms of the GNU General Public License 82e601613SDavid Gibson * as published by the Free Software Foundation; either version 92e601613SDavid Gibson * 2 of the License, or (at your option) any later version. 102e601613SDavid Gibson */ 112e601613SDavid Gibson #include <stddef.h> 122e601613SDavid Gibson #include "types.h" 132e601613SDavid Gibson #include "elf.h" 142e601613SDavid Gibson #include "string.h" 152e601613SDavid Gibson #include "stdio.h" 162e601613SDavid Gibson #include "page.h" 172e601613SDavid Gibson #include "ops.h" 182e601613SDavid Gibson 192e601613SDavid Gibson #include "of.h" 202e601613SDavid Gibson 212e601613SDavid Gibson static void *of_stdout_handle; 222e601613SDavid Gibson 232e601613SDavid Gibson static int of_console_open(void) 242e601613SDavid Gibson { 252e601613SDavid Gibson void *devp; 262e601613SDavid Gibson 272e601613SDavid Gibson if (((devp = finddevice("/chosen")) != NULL) 282e601613SDavid Gibson && (getprop(devp, "stdout", &of_stdout_handle, 292e601613SDavid Gibson sizeof(of_stdout_handle)) 302e601613SDavid Gibson == sizeof(of_stdout_handle))) 312e601613SDavid Gibson return 0; 322e601613SDavid Gibson 332e601613SDavid Gibson return -1; 342e601613SDavid Gibson } 352e601613SDavid Gibson 36*b96fbb6eSGeoff Levand static void of_console_write(const char *buf, int len) 372e601613SDavid Gibson { 382e601613SDavid Gibson of_call_prom("write", 3, 1, of_stdout_handle, buf, len); 392e601613SDavid Gibson } 402e601613SDavid Gibson 412e601613SDavid Gibson void of_console_init(void) 422e601613SDavid Gibson { 432e601613SDavid Gibson console_ops.open = of_console_open; 442e601613SDavid Gibson console_ops.write = of_console_write; 452e601613SDavid Gibson } 46