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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <peripheral_clk_config.h>
#include "watch.h"
#include "lfs.h"
#include "hpl_flash.h"
int lfs_storage_read(const struct lfs_config *cfg, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size);
int lfs_storage_prog(const struct lfs_config *cfg, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size);
int lfs_storage_erase(const struct lfs_config *cfg, lfs_block_t block);
int lfs_storage_sync(const struct lfs_config *cfg);
int lfs_storage_read(const struct lfs_config *cfg, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size) {
(void) cfg;
return !watch_storage_read(block, off, (void *)buffer, size);
}
int lfs_storage_prog(const struct lfs_config *cfg, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size) {
(void) cfg;
return !watch_storage_write(block, off, (void *)buffer, size);
}
int lfs_storage_erase(const struct lfs_config *cfg, lfs_block_t block) {
(void) cfg;
return !watch_storage_erase(block);
}
int lfs_storage_sync(const struct lfs_config *cfg) {
(void) cfg;
return !watch_storage_sync();
}
const struct lfs_config cfg = {
// block device operations
.read = lfs_storage_read,
.prog = lfs_storage_prog,
.erase = lfs_storage_erase,
.sync = lfs_storage_sync,
// block device configuration
.read_size = 16,
.prog_size = NVMCTRL_PAGE_SIZE,
.block_size = NVMCTRL_ROW_SIZE,
.block_count = NVMCTRL_RWWEE_PAGES / 4,
.cache_size = NVMCTRL_PAGE_SIZE,
.lookahead_size = 16,
.block_cycles = 100,
};
lfs_t lfs;
lfs_file_t file;
static int _traverse_df_cb(void *p, lfs_block_t block){
(void) block;
uint32_t *nb = p;
*nb += 1;
return 0;
}
static int get_free_space(void){
int err;
uint32_t free_blocks = 0;
err = lfs_fs_traverse(&lfs, _traverse_df_cb, &free_blocks);
if(err < 0){
return err;
}
uint32_t available = cfg.block_count * cfg.block_size - free_blocks * cfg.block_size;
return available;
}
static void cb_tick(void) {
watch_date_time date_time = watch_rtc_get_date_time();
if (date_time.unit.second == 0) {
int err = lfs_mount(&lfs, &cfg);
if (err) {
printf("Mount failed: %d\n", err);
}
// read current count
uint32_t loop_count = 0;
lfs_file_open(&lfs, &file, "loop_count", LFS_O_RDWR | LFS_O_CREAT);
lfs_file_read(&lfs, &file, &loop_count, sizeof(loop_count));
// update loop count
loop_count += 1;
lfs_file_rewind(&lfs, &file);
lfs_file_write(&lfs, &file, &loop_count, sizeof(loop_count));
// remember the storage is not updated until the file is closed successfully
lfs_file_close(&lfs, &file);
// release any resources we were using
lfs_unmount(&lfs);
// print the boot count
printf("loop_count: %ld\n", loop_count);
printf("free space: %d\n", get_free_space());
}
}
void app_init(void) {
}
void app_wake_from_backup(void) {
}
void app_setup(void) {
// mount the filesystem
int err = lfs_mount(&lfs, &cfg);
// reformat if we can't mount the filesystem
// this should only happen on the first boot
if (err) {
lfs_format(&lfs, &cfg);
lfs_mount(&lfs, &cfg);
}
watch_rtc_register_tick_callback(cb_tick);
}
void app_prepare_for_standby(void) {
}
void app_wake_from_standby(void) {
}
bool app_loop(void) {
return true;
}
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