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Diffstat (limited to 'arch/sparc/prom/console_64.c')
-rw-r--r--arch/sparc/prom/console_64.c81
1 files changed, 15 insertions, 66 deletions
diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
index 10322dc2f557..ed39e75828bd 100644
--- a/arch/sparc/prom/console_64.c
+++ b/arch/sparc/prom/console_64.c
@@ -15,85 +15,34 @@
15 15
16extern int prom_stdin, prom_stdout; 16extern int prom_stdin, prom_stdout;
17 17
18/* Non blocking get character from console input device, returns -1 18static int __prom_console_write_buf(const char *buf, int len)
19 * if no input was taken. This can be used for polling.
20 */
21inline int
22prom_nbgetchar(void)
23{
24 unsigned long args[7];
25 char inc;
26
27 args[0] = (unsigned long) "read";
28 args[1] = 3;
29 args[2] = 1;
30 args[3] = (unsigned int) prom_stdin;
31 args[4] = (unsigned long) &inc;
32 args[5] = 1;
33 args[6] = (unsigned long) -1;
34
35 p1275_cmd_direct(args);
36
37 if (args[6] == 1)
38 return inc;
39 return -1;
40}
41
42/* Non blocking put character to console device, returns -1 if
43 * unsuccessful.
44 */
45inline int
46prom_nbputchar(char c)
47{ 19{
48 unsigned long args[7]; 20 unsigned long args[7];
49 char outc; 21 int ret;
50
51 outc = c;
52 22
53 args[0] = (unsigned long) "write"; 23 args[0] = (unsigned long) "write";
54 args[1] = 3; 24 args[1] = 3;
55 args[2] = 1; 25 args[2] = 1;
56 args[3] = (unsigned int) prom_stdout; 26 args[3] = (unsigned int) prom_stdout;
57 args[4] = (unsigned long) &outc; 27 args[4] = (unsigned long) buf;
58 args[5] = 1; 28 args[5] = (unsigned int) len;
59 args[6] = (unsigned long) -1; 29 args[6] = (unsigned long) -1;
60 30
61 p1275_cmd_direct(args); 31 p1275_cmd_direct(args);
62 32
63 if (args[6] == 1) 33 ret = (int) args[6];
64 return 0; 34 if (ret < 0)
65 else
66 return -1; 35 return -1;
36 return ret;
67} 37}
68 38
69/* Blocking version of get character routine above. */ 39void prom_console_write_buf(const char *buf, int len)
70char
71prom_getchar(void)
72{
73 int character;
74 while((character = prom_nbgetchar()) == -1) ;
75 return (char) character;
76}
77
78/* Blocking version of put character routine above. */
79void
80prom_putchar(char c)
81{ 40{
82 prom_nbputchar(c); 41 while (len) {
83} 42 int n = __prom_console_write_buf(buf, len);
84 43 if (n < 0)
85void 44 continue;
86prom_puts(const char *s, int len) 45 len -= n;
87{ 46 buf += len;
88 unsigned long args[7]; 47 }
89
90 args[0] = (unsigned long) "write";
91 args[1] = 3;
92 args[2] = 1;
93 args[3] = (unsigned int) prom_stdout;
94 args[4] = (unsigned long) s;
95 args[5] = len;
96 args[6] = (unsigned long) -1;
97
98 p1275_cmd_direct(args);
99} 48}