etm_dummy: use register_commands()
[openocd.git] / src / target / etm_dummy.c
1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "armv4_5.h"
25 #include "etm_dummy.h"
26
27
28 COMMAND_HANDLER(handle_etm_dummy_config_command)
29 {
30 struct target *target;
31 struct arm *arm;
32
33 target = get_target(CMD_ARGV[0]);
34
35 if (!target)
36 {
37 LOG_ERROR("target '%s' not defined", CMD_ARGV[0]);
38 return ERROR_FAIL;
39 }
40
41 arm = target_to_arm(target);
42 if (!is_arm(arm))
43 {
44 command_print(CMD_CTX, "target '%s' isn't an ARM", CMD_ARGV[0]);
45 return ERROR_FAIL;
46 }
47
48 if (arm->etm)
49 {
50 arm->etm->capture_driver_priv = NULL;
51 }
52 else
53 {
54 LOG_ERROR("target has no ETM defined, ETM dummy left unconfigured");
55 return ERROR_FAIL;
56 }
57
58 return ERROR_OK;
59 }
60
61 static const struct command_registration etm_dummy_config_command_handlers[] = {
62 {
63 .name = "config",
64 .handler = &handle_etm_dummy_config_command,
65 .mode = COMMAND_CONFIG,
66 .usage = "<target>",
67 },
68 COMMAND_REGISTRATION_DONE
69 };
70 static const struct command_registration etm_dummy_command_handlers[] = {
71 {
72 .name = "etm_dummy",
73 .mode = COMMAND_ANY,
74 .help = "Dummy ETM capture driver command group",
75 .chain = etm_dummy_config_command_handlers,
76 },
77 COMMAND_REGISTRATION_DONE
78 };
79
80 static int etm_dummy_register_commands(struct command_context *cmd_ctx)
81 {
82 return register_commands(cmd_ctx, NULL, etm_dummy_command_handlers);
83 }
84
85 static int etm_dummy_init(struct etm_context *etm_ctx)
86 {
87 return ERROR_OK;
88 }
89
90 static trace_status_t etm_dummy_status(struct etm_context *etm_ctx)
91 {
92 return TRACE_IDLE;
93 }
94
95 static int etm_dummy_read_trace(struct etm_context *etm_ctx)
96 {
97 return ERROR_OK;
98 }
99
100 static int etm_dummy_start_capture(struct etm_context *etm_ctx)
101 {
102 return ERROR_ETM_PORTMODE_NOT_SUPPORTED;
103 }
104
105 static int etm_dummy_stop_capture(struct etm_context *etm_ctx)
106 {
107 return ERROR_OK;
108 }
109
110 struct etm_capture_driver etm_dummy_capture_driver =
111 {
112 .name = "dummy",
113 .register_commands = etm_dummy_register_commands,
114 .init = etm_dummy_init,
115 .status = etm_dummy_status,
116 .start_capture = etm_dummy_start_capture,
117 .stop_capture = etm_dummy_stop_capture,
118 .read_trace = etm_dummy_read_trace,
119 };