diff options
Diffstat (limited to 'arch/sparc/prom/console_64.c')
-rw-r--r-- | arch/sparc/prom/console_64.c | 81 |
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 | ||
16 | extern int prom_stdin, prom_stdout; | 16 | extern int prom_stdin, prom_stdout; |
17 | 17 | ||
18 | /* Non blocking get character from console input device, returns -1 | 18 | static int __prom_console_write_buf(const char *buf, int len) |
19 | * if no input was taken. This can be used for polling. | ||
20 | */ | ||
21 | inline int | ||
22 | prom_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 | */ | ||
45 | inline int | ||
46 | prom_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. */ | 39 | void prom_console_write_buf(const char *buf, int len) |
70 | char | ||
71 | prom_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. */ | ||
79 | void | ||
80 | prom_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) | |
85 | void | 44 | continue; |
86 | prom_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 | } |