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/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Manual test application for UART peripheral drivers
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "shell.h"
#include "periph/flashpage.h"
#define LINE_LEN (16)
/**
* @brief Allocate space for 1 flash page in RAM
*/
static uint8_t page_mem[FLASHPAGE_SIZE];
static int getpage(const char *str)
{
int page = atoi(str);
if ((page >= FLASHPAGE_NUMOF) || (page < 0)) {
printf("error: page %i is invalid\n", page);
return -1;
}
return page;
}
static void dumpchar(uint8_t mem)
{
if (mem >= ' ' && mem <= '~') {
printf(" %c ", mem);
}
else {
printf(" ?? ");
}
}
static void memdump(void *addr, size_t len)
{
unsigned pos = 0;
uint8_t *mem = (uint8_t *)addr;
while (pos < (unsigned)len) {
for (unsigned i = 0; i < LINE_LEN; i++) {
printf("0x%02x ", mem[pos + i]);
}
puts("");
for (unsigned i = 0; i < LINE_LEN; i++) {
dumpchar(mem[pos++]);
}
puts("");
}
}
static void dump_local(void)
{
puts("Local page buffer:");
memdump(page_mem, FLASHPAGE_SIZE);
}
static int cmd_info(int argc, char **argv)
{
(void)argc;
(void)argv;
printf("Flash start addr:\t0x%08x\n", (int)CPU_FLASH_BASE);
printf("Page size:\t\t%i\n", (int)FLASHPAGE_SIZE);
printf("Number of pages:\t%i\n", (int)FLASHPAGE_NUMOF);
return 0;
}
static int cmd_dump(int argc, char **argv)
{
int page;
void *addr;
if (argc < 2) {
printf("usage: %s <page>\n", argv[0]);
return 1;
}
page = getpage(argv[1]);
if (page < 0) {
return 1;
}
addr = flashpage_addr(page);
printf("Flash page %i at address %p\n", page, addr);
memdump(addr, FLASHPAGE_SIZE);
return 0;
}
static int cmd_dump_local(int argc, char **argv)
{
(void)argc;
(void)argv;
dump_local();
return 0;
}
static int cmd_read(int argc, char **argv)
{
int page;
if (argc < 2) {
printf("usage: %s <page>\n", argv[0]);
return 1;
}
page = getpage(argv[1]);
if (page < 0) {
return 1;
}
flashpage_read(page, page_mem);
printf("Read flash page %i into local page buffer\n", page);
dump_local();
return 0;
}
static int cmd_write(int argc, char **argv)
{
int page;
if (argc < 2) {
printf("usage: %s <page>\n", argv[0]);
return 1;
}
page = getpage(argv[1]);
if (page < 0) {
return 1;
}
if (flashpage_write_and_verify(page, page_mem) != FLASHPAGE_OK) {
printf("error: verification for page %i failed\n", page);
return 1;
}
printf("wrote local page to flash page %i at addr %p\n",
page, flashpage_addr(page));
return 0;
}
static int cmd_erase(int argc, char **argv)
{
int page;
if (argc < 2) {
printf("usage: %s <page>\n", argv[0]);
return 1;
}
page = getpage(argv[1]);
if (page < 0) {
return 1;
}
flashpage_write(page, NULL);
printf("successfully erased page %i (addr %p)\n",
page, flashpage_addr(page));
return 0;
}
static int cmd_edit(int argc, char **argv)
{
int offset;
size_t data_len;
if (argc < 3) {
printf("usage: %s <offset> <data>\n", argv[0]);
return 1;
}
offset = atoi(argv[1]);
if (offset >= FLASHPAGE_SIZE) {
printf("error: given offset is out of bounce\n");
return -1;
}
data_len = strlen(argv[2]);
if ((data_len + offset) > FLASHPAGE_SIZE) {
data_len = FLASHPAGE_SIZE - offset;
}
memcpy(&page_mem[offset], argv[2], data_len);
dump_local();
return 0;
}
static int cmd_test(int argc, char **argv)
{
int page;
char fill = 'a';
if (argc < 2) {
printf("usage: %s <page>\n", argv[0]);
return 1;
}
page = getpage(argv[1]);
if (page < 0) {
return 1;
}
for (int i = 0; i < sizeof(page_mem); i++) {
page_mem[i] = (uint8_t)fill++;
if (fill > 'z') {
fill = 'a';
}
}
if (flashpage_write_and_verify(page, page_mem) != FLASHPAGE_OK) {
printf("error verifying the content of page %i: ", page);
return 1;
}
printf("wrote local page to flash page %i at addr %p\n",
page, flashpage_addr(page));
return 0;
}
static const shell_command_t shell_commands[] = {
{ "info", "Show information about pages", cmd_info },
{ "dump", "Dump the selected page to STDOUT", cmd_dump },
{ "dump_local", "Dump the local page buffer to STDOUT", cmd_dump_local },
{ "read", "Read and output the given page", cmd_read },
{ "write", "Write (ASCII) data to the given page", cmd_write },
{ "erase", "Erase the given page", cmd_erase },
{ "edit", "Write bytes to the local page", cmd_edit },
{ "test", "Write and verify test pattern", cmd_test },
{ NULL, NULL, NULL }
};
int main(void)
{
puts("ROM flash read write test\n");
puts("Please refer to the README.md for further information\n");
cmd_info(0, NULL);
/* run the shell */
char line_buf[SHELL_DEFAULT_BUFSIZE];
shell_run(shell_commands, line_buf, SHELL_DEFAULT_BUFSIZE);
return 0;
}