semihosting: add custom user command handler

[fw/openocd] / src / helper / command.h

diff --git a/src/helper/command.h b/src/helper/command.h
index 068df9d0e3d4ff2006f18b2a8b82ff9617f899a5..796cd9d3b3860b10f465d0627ca9ad00cd4a5b10 100644 (file)
--- a/src/helper/command.h
+++ b/src/helper/command.h
@@ -24,8 +24,8 @@
 
 #include <stdint.h>
 #include <stdbool.h>
-#include <jim-nvp.h>
 
+#include <helper/jim-nvp.h>
 #include <helper/list.h>
 #include <helper/types.h>
 
@@ -38,6 +38,15 @@
 #define PRINTF_ATTRIBUTE_FORMAT printf
 #endif
 
+/**
+ * OpenOCD command mode is COMMAND_CONFIG at start, then switches to COMMAND_EXEC
+ * during the execution of command 'init'.
+ * The field 'mode' in struct command_registration specifies in which command mode
+ * the command can be executed:
+ * - during COMMAND_CONFIG only,
+ * - during COMMAND_EXEC only,
+ * - in both modes (COMMAND_ANY).
+ */
 enum command_mode {
        COMMAND_EXEC,
        COMMAND_CONFIG,
@@ -84,6 +93,17 @@ struct command_invocation {
        Jim_Obj *output;
 };
 
+/**
+ * Return true if the command @c cmd is registered by OpenOCD.
+ */
+bool jimcmd_is_oocd_command(Jim_Cmd *cmd);
+
+/**
+ * Return the pointer to the command's private data specified during the
+ * registration of command @a cmd .
+ */
+void *jimcmd_privdata(Jim_Cmd *cmd);
+
 /**
  * Command handlers may be defined with more parameters than the base
  * set provided by command.c.  This macro uses C99 magic to allow
@@ -416,7 +436,7 @@ DECLARE_PARSE_WRAPPER(_target_addr, target_addr_t);
 #define COMMAND_PARSE_NUMBER(type, in, out) \
        do { \
                int retval_macro_tmp = parse_ ## type(in, &(out)); \
-               if (ERROR_OK != retval_macro_tmp) { \
+               if (retval_macro_tmp != ERROR_OK) { \
                        command_print(CMD, stringify(out) \
                                " option value ('%s') is not valid", in); \
                        return retval_macro_tmp; \
@@ -478,7 +498,7 @@ DECLARE_PARSE_WRAPPER(_target_addr, target_addr_t);
        do { \
                bool value; \
                int retval_macro_tmp = command_parse_bool_arg(in, &value); \
-               if (ERROR_OK != retval_macro_tmp) { \
+               if (retval_macro_tmp != ERROR_OK) { \
                        command_print(CMD, stringify(out) \
                                " option value ('%s') is not valid", in); \
                        command_print(CMD, "  choices are '%s' or '%s'", \