static int show_help(int argc, char *argv[])
{
int module;
/* help per command */
if ((argc > 2) || ((default_module != -1) && (argc == 2))) {
return show_cmd_help(&argv[1]);
}
/* help per module */
if ((argc == 2) || ((default_module != -1) && (argc == 1))) {
if (default_module == -1) {
module = get_destination_module(argv[1]);
if (module == -1) {
printk("Illegal module %s\n", argv[1]);
return -EINVAL;
}
} else {
module = default_module;
}
print_module_commands(module);
printk("\nEnter 'exit' to leave current module.\n");
} else { /* help for all entities */
printk("Available modules:\n");
for (module = 0; module < NUM_OF_SHELL_ENTITIES; module++) {
printk("%s\n", __shell_cmd_start[module].module_name);
}
printk("\nTo select a module, enter 'select <module name>'.\n");
}
return 0;
}
static int show_help(int argc, char *argv[])
{
int i;
if (argc > 1) {
return show_cmd_help(--argc, &argv[1]);
}
printk("Available commands:\n");
printk("help\n");
for (i = 0; commands[i].cmd_name; i++) {
printk("%s\n", commands[i].cmd_name);
}
return 0;
}
static void shell(int arg1, int arg2)
{
char *argv[ARGC_MAX + 1];
size_t argc;
while (1) {
struct uart_console_input *cmd;
shell_cmd_function_t cb;
printk("%s", get_prompt());
cmd = nano_fiber_fifo_get(&cmds_queue, TICKS_UNLIMITED);
argc = line2argv(cmd->line, argv, ARRAY_SIZE(argv));
if (!argc) {
nano_fiber_fifo_put(&avail_queue, cmd);
continue;
}
cb = get_cb(argv[0]);
if (!cb) {
if (app_cmd_handler != NULL) {
cb = app_cmd_handler;
} else {
printk("Unrecognized command: %s\n", argv[0]);
printk("Type 'help' for list of available commands\n");
nano_fiber_fifo_put(&avail_queue, cmd);
continue;
}
}
/* Execute callback with arguments */
if (cb(argc, argv) < 0) {
show_cmd_help(argc, argv);
}
nano_fiber_fifo_put(&avail_queue, cmd);
}
}
int shell_exec(char *line)
{
char *argv[ARGC_MAX + 1];
int argc;
int module = default_module;
int err;
shell_cmd_function_t cb;
argc = line2argv(line, argv, ARRAY_SIZE(argv));
if (!argc) {
return -EINVAL;
}
err = argc;
cb = get_cb(&argc, argv, &module);
if (!cb) {
if (app_cmd_handler != NULL) {
cb = app_cmd_handler;
} else {
print_cmd_unknown(argv[0]);
return -EINVAL;
}
}
/* Execute callback with arguments */
if (module != -1 && module != default_module) {
/* Ajust parameters to point to the actual command */
err = cb(argc - 1, &argv[1]);
} else {
err = cb(argc, argv);
}
if (err < 0) {
show_cmd_help(argv);
}
return err;
}
