term.c

来自「SMDK2440 boot code, base on vivi」· C语言 代码 · 共 102 行

/*
 * vivi/drivers/serial/term.c: It's a simple serial termial.
 *
 * Copyright (C) 2002 MIZI Research, Inc.
 *
 * This code is GPL.
 *
 * Author: Janghoon Lyu <[e-mail]>
 * Date  : $Date: 2003/08/29 08:00:23 $
 *
 * $Revision: 1.7 $
 */


#include <config.h>
#include <vstring.h>
#include <command.h>

#include "getcmd.h"

#define MAX_PROMPT_LEN	16
char prompt[MAX_PROMPT_LEN] = CONFIG_SERIAL_TERM_PROMPT;
int term_blank = 0;

extern void uart_init(void);


void term_blank_on(void)
{ 
#ifdef CONFIG_TERM_BLANKBOOTUP
	term_blank = 1; 
#endif
}
void term_blank_off(void) 
{ 
	term_blank = 0; 
}

void
console_init(void)
{
	term_blank_on();
	uart_init();
}

void serial_term(void)
{
	char cmd_buf[MAX_CMDBUF_SIZE];

	term_blank_off();
	printk("\n");

	for (;;) {
		printk("%s> ", prompt);

		getcmd(cmd_buf, MAX_CMDBUF_SIZE);

		/* execute a user command */
		if (cmd_buf[0])
			exec_string(cmd_buf);
	}
}

int
_change_prompt(char *name)
{
	int len = strlen(name);

	if (len > MAX_PROMPT_LEN)
		return 1;

	strcpy((char *)(prompt), name);
	prompt[len] = '\0';

	return 0;
}

#if 0
void command_prompt(int argc, const char **argv)
{
	unsigned int len;

	switch (argc) {
	case 2:
		_change_prompt(argv[1]);
		printk("Prompt is chagned to \"%s\"\n", prompt);
		break;
	default:
		printk("invalid 'prompt' command: too few or many arguments\n");
		printk("Usage:\n");
		printk("  prompt <string>\n");
		break;
	}
}

user_command_t prompt_cmd = {
	"prompt",
	command_prompt,
	NULL
};
#endif