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comparison packages/cygmon/current/misc/bsp/common/console-io.c @ 76:435cced73e2f ecos-v1_3_1-release

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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children e0c0827131d1
comparison
equal deleted inserted replaced
75:41bf073c0c32 76:435cced73e2f
1 //==========================================================================
2 //
3 // console-io.c
4 //
5 // BSP Console Channel Interfaces.
6 //
7 //==========================================================================
8 //####COPYRIGHTBEGIN####
9 //
10 // -------------------------------------------
11 // The contents of this file are subject to the Red Hat eCos Public License
12 // Version 1.1 (the "License"); you may not use this file except in
13 // compliance with the License. You may obtain a copy of the License at
14 // http://www.redhat.com/
15 //
16 // Software distributed under the License is distributed on an "AS IS"
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
18 // License for the specific language governing rights and limitations under
19 // the License.
20 //
21 // The Original Code is eCos - Embedded Configurable Operating System,
22 // released September 30, 1998.
23 //
24 // The Initial Developer of the Original Code is Red Hat.
25 // Portions created by Red Hat are
26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
27 // All Rights Reserved.
28 // -------------------------------------------
29 //
30 //####COPYRIGHTEND####
31 //==========================================================================
32 //#####DESCRIPTIONBEGIN####
33 //
34 // Author(s):
35 // Contributors: gthomas
36 // Date: 1999-10-20
37 // Purpose: BSP Console Channel Interfaces.
38 // Description:
39 //
40 //
41 //####DESCRIPTIONEND####
42 //
43 //=========================================================================
44
45
46 #include <stdlib.h>
47 #include <bsp/bsp.h>
48 #include "bsp_if.h"
49
50 static unsigned char __console_ungetc;
51
52 void
53 bsp_console_write(const char *p, int len)
54 {
55 struct bsp_comm_procs *com;
56
57 if ((com = bsp_shared_data->__console_procs) != NULL)
58 com->__write(com->ch_data, p, len);
59 else
60 bsp_debug_write(p, len);
61 }
62
63
64 int
65 bsp_console_read(char *p, int len)
66 {
67 struct bsp_comm_procs *com;
68
69 if (len <= 0)
70 return 0;
71
72 if ((com = bsp_shared_data->__console_procs) != NULL) {
73 if (__console_ungetc) {
74 *p = __console_ungetc;
75 __console_ungetc = 0;
76 return 1;
77 }
78 return com->__read(com->ch_data, p, len);
79 } else
80 return bsp_debug_read(p, len);
81 }
82
83 /*#define PRINTABLE_ONLY*/
84 #ifdef PRINTABLE_ONLY
85 #include <ctype.h>
86 #endif /* PRINTABLE_ONLY */
87
88 void
89 bsp_console_putc(char ch)
90 {
91 struct bsp_comm_procs *com;
92
93 #ifdef PRINTABLE_ONLY
94 if ((!isprint(ch)) && (!isspace(ch)))
95 ch = '.';
96 #endif /* PRINTABLE_ONLY */
97
98 if ((com = bsp_shared_data->__console_procs) != NULL)
99 com->__putc(com->ch_data, ch);
100 else
101 bsp_debug_putc(ch);
102 }
103
104 int
105 bsp_console_getc(void)
106 {
107 struct bsp_comm_procs *com;
108 int ch;
109
110 if ((com = bsp_shared_data->__console_procs) != NULL) {
111 if (__console_ungetc) {
112 ch = __console_ungetc;
113 __console_ungetc = 0;
114 return ch;
115 }
116 return com->__getc(com->ch_data);
117 } else
118 return bsp_debug_getc();
119 }
120
121
122 void
123 bsp_console_ungetc(char ch)
124 {
125 if (bsp_shared_data->__console_procs != NULL)
126 __console_ungetc = (unsigned char)ch;
127 else
128 bsp_debug_ungetc(ch);
129 }
130
131