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Improved param command, show now allows to filter and set allows to set integer params (e.g. param set MAV_TYPE 2)

This commit is contained in:
Lorenz Meier 2013-01-24 15:43:12 +01:00
parent b60a744b77
commit 6d12f147b8
1 changed files with 74 additions and 4 deletions
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78
apps/systemcmds/param/param.c
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@ -61,6 +61,7 @@ static void do_load(const char* param_file_name);
static void do_import(const char* param_file_name);
static void do_show(const char* search_string);
static void do_show_print(void *arg, param_t param);
static void do_set(const char* name, const char* val);
int
param_main(int argc, char *argv[])
@ -100,15 +101,24 @@ param_main(int argc, char *argv[])
exit(0);
}
if (!strcmp(argv[1], "show"))
if (!strcmp(argv[1], "show")) {
if (argc >= 3) {
do_show(argv[2]);
} else {
do_show(NULL);
}
}
if (!strcmp(argv[1], "set")) {
if (argc >= 4) {
do_set(argv[2], argv[3]);
} else {
errx(1, "not enough arguments.\nTry 'param set PARAM_NAME 3'");
}
}
}
errx(1, "expected a command, try 'load', 'import', 'show', 'select' or 'save'");
errx(1, "expected a command, try 'load', 'import', 'show', 'set', 'select' or 'save'");
}
static void
@ -185,9 +195,11 @@ do_show_print(void *arg, param_t param)
float f;
const char *search_string = (const char*)arg;
/* print nothing if search string valid and not matching */
if (arg != NULL && (strcmp(search_string, param_name(param) != 0)))
/* print nothing if search string is invalid and not matching */
if (!(arg == NULL || (!strcmp(search_string, param_name(param))))) {
/* param not found */
return;
}
printf("%c %s: ",
param_value_unsaved(param) ? '*' : (param_value_is_default(param) ? ' ' : '+'),
@ -225,3 +237,61 @@ do_show_print(void *arg, param_t param)
printf("<error fetching parameter %d>\n", param);
}
static void
do_set(const char* name, const char* val)
{
int32_t i;
float f;
param_t param = param_find(name);
/* set nothing if parameter cannot be found */
if (param == PARAM_INVALID) {
/* param not found */
errx(1, "Error: Parameter %s not found.", name);
}
printf("%c %s: ",
param_value_unsaved(param) ? '*' : (param_value_is_default(param) ? ' ' : '+'),
param_name(param));
/*
* Set parameter if type is known and conversion from string to value turns out fine
*/
switch (param_type(param)) {
case PARAM_TYPE_INT32:
if (!param_get(param, &i)) {
printf("old: %d", i);
/* convert string */
char* end;
i = strtol(val,&end,10);
param_set(param, &i);
printf(" -> new: %d\n", i);
}
break;
case PARAM_TYPE_FLOAT:
if (!param_get(param, &f)) {
printf("float values are not yet supported.");
// printf("old: %4.4f", (double)f);
// /* convert string */
// char* end;
// f = strtof(val,&end);
// param_set(param, &f);
// printf(" -> new: %4.4f\n", f);
}
break;
default:
errx(1, "<unknown / unsupported type %d>\n", 0 + param_type(param));
}
exit(0);
}