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/*

 * Copyright (c) 2008 Jiri Svoboda

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/** @addtogroup debug

 * @{

 */

/** @file

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <bool.h>

#include <udebug.h>

#include <sys/types.h>

#include "main.h"

#include "cmd.h"

static void cmd_break(int argc, char *argv[]);

void	    cmd_help(int argc, char *argv[]);

static void cmd_read(int argc, char *argv[]);

static void cmd_quit(int argc, char *argv[]);

volatile bool quit = false;

cmd_desc_t cmd_table[] = {

	{ 1,	"break",	cmd_break },

	{ 0,	"help",		cmd_help },

	{ 2,	"read",		cmd_read },

	{ 0,	"quit",		cmd_quit },

	{ -1,	NULL,		NULL }

};

static void cmd_break(int argc, char *argv[])

{

	uintptr_t addr;

	char brkp[1];

	int rc;

	breakpoint_t *brk;

	int i;

	brk = NULL;

	for (i = 0; i < MAX_BRKPTS; i++)

		if (brk_list[i].set == 0) brk = brk_list+i;

	if (!brk) {

		printf("too many breakpoints\n");

		return;

	}

	(void)argc;

	addr = strtoul(argv[1], NULL, 0);

	printf("You requested a breakpoint at 0x%x\n", addr);

	rc = udebug_mem_read(app_phone, &brk->back, addr, 1);

	printf("udebug_mem_read() -> %d\n", rc);

	brkp[0] = 0xcc;

	rc = udebug_mem_write(app_phone, brkp, addr, 1);

	printf("udebug_mem_write() -> %d\n", rc);

	brk->addr = addr;

	brk->set = 1;

}

void cmd_help(int argc, char *argv[])

{

	int i;

	(void)argc; (void)argv;

	i = 0;

	while (cmd_table[i].name != NULL) {

		printf("%s\n", cmd_table[i].name);

		++i;

	}

}

#define BYTES_PER_LINE 16

static void cmd_read(int argc, char *argv[])

{

	uintptr_t addr;

	size_t length;

	uint8_t buf[BYTES_PER_LINE];

	int to_read, i;

	int rc;

	(void)argc;

	addr = strtoul(argv[1], NULL, 0);

	length = strtoul(argv[2], NULL, 0);

	while (length > 0) {

		to_read = length < BYTES_PER_LINE ? length : BYTES_PER_LINE;

		rc = udebug_mem_read(app_phone, buf, addr, to_read);

		if (rc < 0) {

			printf("error %d\n", rc);

			return;

		}

		printf("0x%x:", addr);

		for (i = 0; i < to_read; ++i) {

			printf(" %02x", buf[i]);

		}

		for (i = to_read; i < BYTES_PER_LINE; ++i) {

			printf("   ");

		}

		putchar ('\t');

		for (i = 0; i < to_read; ++i) {

			if (buf[i] >= 32 && buf[i] < 127)

				putchar(buf[i]);

			else

				putchar('.');

		}

		printf("\n");

		addr += to_read;

		length -= to_read;

	}

}

static void cmd_quit(int argc, char *argv[])

{

	(void)argc; (void)argv;

	quit = true;

}

/** @}

 */