1 // SPDX-License-Identifier: GPL-2.0 1
2 /* console.c: Routines that deal with sending
3 * to/from the current console devi
4 *
5 * Copyright (C) 1995 David S. Miller (davem@d
6 * Copyright (C) 1996,1997 Jakub Jelinek (jj@s
7 */
8
9 #include <linux/types.h>
10 #include <linux/kernel.h>
11 #include <linux/sched.h>
12 #include <asm/openprom.h>
13 #include <asm/oplib.h>
14 #include <linux/string.h>
15
16 static int __prom_console_write_buf(const char
17 {
18 unsigned long args[7];
19 int ret;
20
21 args[0] = (unsigned long) "write";
22 args[1] = 3;
23 args[2] = 1;
24 args[3] = (unsigned int) prom_stdout;
25 args[4] = (unsigned long) buf;
26 args[5] = (unsigned int) len;
27 args[6] = (unsigned long) -1;
28
29 p1275_cmd_direct(args);
30
31 ret = (int) args[6];
32 if (ret < 0)
33 return -1;
34 return ret;
35 }
36
37 void prom_console_write_buf(const char *buf, i
38 {
39 while (len) {
40 int n = __prom_console_write_b
41 if (n < 0)
42 continue;
43 len -= n;
44 buf += len;
45 }
46 }
47
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