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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;

}

/** @}

 */