bitq: remove dead code
[openocd.git] / src / hello.c
1 /***************************************************************************
2 * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
19
20 #ifdef HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23 #include <helper/log.h>
24
25 COMMAND_HANDLER(handle_foo_command)
26 {
27 if (CMD_ARGC < 1 || CMD_ARGC > 2)
28 {
29 LOG_ERROR("%s: incorrect number of arguments", CMD_NAME);
30 return ERROR_COMMAND_SYNTAX_ERROR;
31 }
32
33 uint32_t address;
34 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
35
36 const char *msg = "<unchanged>";
37 if (CMD_ARGC == 2)
38 {
39 bool enable;
40 COMMAND_PARSE_ENABLE(CMD_ARGV[1], enable);
41 msg = enable ? "enable" : "disable";
42 }
43
44 LOG_INFO("%s: address=0x%8.8" PRIx32 " enabled=%s", CMD_NAME, address, msg);
45 return ERROR_OK;
46 }
47
48 static bool foo_flag;
49
50 COMMAND_HANDLER(handle_flag_command)
51 {
52 return CALL_COMMAND_HANDLER(handle_command_parse_bool,
53 &foo_flag, "foo flag");
54 }
55
56 static const struct command_registration foo_command_handlers[] = {
57 {
58 .name = "bar",
59 .handler = &handle_foo_command,
60 .mode = COMMAND_ANY,
61 .usage = "address ['enable'|'disable']",
62 .help = "an example command",
63 },
64 {
65 .name = "baz",
66 .handler = &handle_foo_command,
67 .mode = COMMAND_ANY,
68 .usage = "address ['enable'|'disable']",
69 .help = "a sample command",
70 },
71 {
72 .name = "flag",
73 .handler = &handle_flag_command,
74 .mode = COMMAND_ANY,
75 .usage = "[on|off]",
76 .help = "set a flag",
77 },
78 COMMAND_REGISTRATION_DONE
79 };
80
81 static COMMAND_HELPER(handle_hello_args, const char **sep, const char **name)
82 {
83 if (CMD_ARGC > 1)
84 {
85 LOG_ERROR("%s: too many arguments", CMD_NAME);
86 return ERROR_COMMAND_SYNTAX_ERROR;
87 }
88 if (1 == CMD_ARGC)
89 {
90 *sep = " ";
91 *name = CMD_ARGV[0];
92 }
93 else
94 *sep = *name = "";
95
96 return ERROR_OK;
97 }
98 COMMAND_HANDLER(handle_hello_command)
99 {
100 const char *sep, *name;
101 int retval = CALL_COMMAND_HANDLER(handle_hello_args, &sep, &name);
102 if (ERROR_OK == retval)
103 command_print(CMD_CTX, "Greetings%s%s!", sep, name);
104 return retval;
105 }
106
107 const struct command_registration hello_command_handlers[] = {
108 {
109 .name = "hello",
110 .handler = handle_hello_command,
111 .mode = COMMAND_ANY,
112 .help = "prints a warm welcome",
113 .usage = "[name]",
114 },
115 {
116 .name = "foo",
117 .mode = COMMAND_ANY,
118 .help = "example command handler skeleton",
119
120 .chain = foo_command_handlers,
121 },
122 COMMAND_REGISTRATION_DONE
123 };