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#include "common.h"
#include <stdlib.h>
#include <string.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(' ');
}
static uint8_t ram_read_byte(const uint8_t *p)
{
return *p;
}
void dump_mem(const uint8_t *startaddr, int len,
uint8_t (*readfkt)(const uint8_t *), char *title)
{
uint8_t buf[16];
char *indent = NULL;
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);
indent = " ";
}
while (len) {
if (len < 16)
llen = len;
for (i = pre; i < llen; i++)
buf[i] = readfkt(addr + i);
printf_P(PSTR("%s%04x:"),indent, addr);
for (i = 0; i < llen; i++) {
if ((i % 8) == 0)
putchar(' ');
if (i < pre)
printf_P(PSTR(".. "));
else
printf_P(PSTR("%.2x "), buf[i]);
}
/* fill line with whitespace for nice ASCII print */
print_blanks(3 * (16u - i) + (16u-i)/8 + 1 + pre);
/* Print data in ASCII characters */
for (i = pre; i < llen; i++)
printf_P(PSTR("%c"), isprint(buf[i]) ? buf[i] : '.');
putchar('\n');
pre = 0;
addr += 16;
len -= llen;
}
}
void dump_eep(const uint8_t *addr, unsigned int len, char *title)
{
dump_mem(addr, len, eeprom_read_byte, title);
}
void dump_ram(const uint8_t *addr, unsigned int len, char *title)
{
dump_mem(addr, len, ram_read_byte, title);
}
#if 0
void dump_heap(void)
{
extern unsigned int __brkval;
dump_ram((uint8_t *) __malloc_heap_start,
__brkval - (unsigned int) __malloc_heap_start,
"=== Heap:");
}
#endif
/*
* Memory Display
* md addr {len}
*/
command_ret_t do_dump_mem(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
// static const uint8_t *addr;
// static uint16_t length = 128;
uint8_t (*readhow)(const uint8_t *);
(void) cmdtp; (void) flag;
if (argc < 2)
return CMD_RET_USAGE;
const uint8_t *addr;
uint16_t length = 128;
if (strchr(argv[0],'r') != NULL)
readhow = ram_read_byte;
else if (strchr(argv[0],'e') != NULL)
readhow = eeprom_read_byte;
else
return CMD_RET_USAGE;
/* 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_mem(addr, length, readhow, NULL);
return CMD_RET_SUCCESS;
}
command_ret_t 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 CMD_RET_FAILURE;
}
if (dest > E2END) {
debug("dest > EEPROM size: 0x%04x\n", dest);
return CMD_RET_FAILURE;
}
if (count > E2END+1) {
debug("count > EEPROM size: 0x%04x\n", count);
return CMD_RET_FAILURE;
}
if (count == 0) {
debug("Zero length?\n");
return CMD_RET_FAILURE;
}
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 CMD_RET_SUCCESS;
}
/*------------------------------------------------------------------------------*/
#if 1
struct __freelist {
size_t sz;
struct __freelist *nx;
};
extern char *__brkval; /* first location not yet allocated */
extern struct __freelist *__flp; /* freelist pointer (head of freelist) */
#define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG)
void
printfreelist(const char * title)
{
struct __freelist *fp1;
int i;
unsigned int freesum = 0;
/* TODO: printf_P */
if (!__flp) {
printf("%s no free list\n", title ? title : "");
} else {
printf("Free list: %s\n", title ? title : "");
for (i = 0, fp1 = __flp; fp1; i++, fp1 = fp1->nx) {
printf(" entry %d @ %04x: size %4u, next ",
i, (size_t)fp1, fp1->sz);
if (fp1->nx)
printf("%04x\n", (size_t)fp1->nx);
else
printf("NULL\n");
freesum += fp1->sz;
}
}
freesum += (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval;
printf("SP: %04x, __brkval: %04x, Total free: %04u\n",
(size_t) STACK_POINTER(), (size_t) __brkval, freesum);
}
#endif
#endif /* DEBUG */
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