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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* System module for Chrome EC */
#include "console.h"
#include "timer.h"
#include "util.h"
#include "watchdog.h"
static int command_mem_dump(int argc, char **argv)
{
volatile uint32_t *address;
uint32_t value, num = 1, i;
char *e;
if (argc < 2)
return EC_ERROR_PARAM_COUNT;
address = (uint32_t *)(uintptr_t)strtoi(argv[1], &e, 0);
if (*e)
return EC_ERROR_PARAM1;
if (argc >= 3)
num = strtoi(argv[2], &e, 0);
for (i = 0; i < num; i++) {
value = address[i];
if (0 == (i%4))
ccprintf("\n%08X: %08x", address+i, value);
else
ccprintf(" %08x", value);
cflush();
/* Lots of output could take a while.
* Let other things happen, too */
if (!(i % 0x100)) {
watchdog_reload();
usleep(10 * MSEC);
}
}
ccprintf("\n");
cflush();
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(md, command_mem_dump,
"addr [num]",
"dump num of words (4B) in memory",
NULL);
static int command_read_word(int argc, char **argv)
{
volatile uint32_t *address;
uint32_t value;
char *e;
if (argc < 2)
return EC_ERROR_PARAM_COUNT;
address = (uint32_t *)(uintptr_t)strtoi(argv[1], &e, 0);
if (*e)
return EC_ERROR_PARAM1;
/* Just reading? */
if (argc < 3) {
value = *address;
ccprintf("read 0x%p = 0x%08x\n", address, value);
return EC_SUCCESS;
}
/* Writing! */
value = strtoi(argv[2], &e, 0);
if (*e)
return EC_ERROR_PARAM2;
ccprintf("write 0x%p = 0x%08x\n", address, value);
cflush(); /* Flush before writing in case this crashes */
*address = value;
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(rw, command_read_word,
"addr [value]",
"Read or write a word in memory",
NULL);
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