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#include "common.h"
#include <stdlib.h>
#include <ctype.h>
#include <avr/eeprom.h>
#include "command.h"
#include "debug.h"
/*
* Debugging
*/
#ifdef DEBUG
static void print_blanks(uint_fast8_t count)
{
while(count--)
putchar(' ');
}
void dump_ram(const uint8_t *startaddr, int len, char *title)
{
uint8_t llen = 16;
uint8_t pre = (size_t) startaddr % 16;
const uint8_t *addr = (uint8_t *) ((size_t) startaddr & ~0x0f);
len += pre;
uint8_t i;
if (title && *title)
printf_P(PSTR("%s\n"),title);
while (len) {
if (len < 16)
llen = len;
printf_P(PSTR(" %.4x:"), (size_t) addr);
print_blanks(3 * pre);
for (i = pre; i < llen; i++)
printf_P(PSTR(" %.2x"), addr[i]);
print_blanks(3 * (16 - i + 1) + pre);
for (i = pre; i < llen; i++)
printf_P(PSTR("%c"), isprint(addr[i]) ? addr[i] : '.');
putchar('\n');
pre = 0;
addr += 16;
len -= llen;
}
}
void dump_heap(void)
{
extern unsigned int __brkval;
dump_ram((uint8_t *) __malloc_heap_start,
__brkval - (unsigned int) __malloc_heap_start,
"=== Heap:");
}
/* TODO: combine with dump_ram() */
void dump_eep(const uint8_t *addr, unsigned int len)
{
uint_fast8_t i;
uint8_t buf[16];
printf_P(PSTR("eeprom dump:"));
while (len) {
printf_P(PSTR("\n 0x%.4x:"), (unsigned int) addr);
for (i = 0; i<16; i++)
buf[i] = eeprom_read_byte(addr + i);
for (i = 0; i<16; i++)
printf_P(PSTR(" %.2x"), buf[i]);
printf_P(PSTR(" "));
for (i = 0; i<16; i++)
printf_P(PSTR("%c"), isprint(buf[i]) ? buf[i] : '.');
addr += 16;
len -= len > 16 ? 16 : len;
}
putchar('\n');
}
/*
* EEPROM Display
* md addr {len}
*/
int do_dump_eep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
const uint8_t *addr;
uint16_t length;
(void) cmdtp;
/* We use the last specified parameters, unless new ones are
* entered.
*/
addr = 0;
length = 128;
if (argc < 2)
return CMD_RET_USAGE;
if ((flag & CMD_FLAG_REPEAT) == 0) {
/* Address is specified since argc > 1 */
addr = (const uint8_t *) (size_t) strtoul(argv[1], NULL, 16);
/* If another parameter, it is the length to display. */
if (argc > 2)
length = (uint16_t) strtoul(argv[2], NULL, 16);
}
/* Print the lines. */
dump_eep(addr, length);
return 0;
}
int do_eep_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint16_t src, dest, count;
int_fast8_t step;
(void) cmdtp;
(void) flag;
if (argc != 4)
return CMD_RET_USAGE;
src = (size_t) strtoul(argv[1], NULL, 16);
dest = (size_t) strtoul(argv[2], NULL, 16);
count = (size_t) strtoul(argv[3], NULL, 16);
if (src > E2END) {
debug("src > EEPROM size: 0x%04x\n", src);
return 1;
}
if (dest > E2END) {
debug("dest > EEPROM size: 0x%04x\n", dest);
return 1;
}
if (count > E2END+1) {
debug("count > EEPROM size: 0x%04x\n", count);
return 1;
}
if (count == 0) {
debug("Zero length ???\n");
return 1;
}
if (dest > src) {
src += count - 1;
dest += count - 1;
step = -1;
} else
step = 1;
while (count-- > 0) {
uint8_t data;
data = eeprom_read_byte((uint8_t *) src);
eeprom_write_byte((uint8_t *) dest, data);
src += step;
dest += step;
}
return 0;
}
#endif /* DEBUG */
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