87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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#include <stdio.h>
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#include "fr30xx.h"
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#include "flashdb.h"
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/* KVDB object */
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static struct fdb_kvdb kvdb={0};
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/* critical zone protection */
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static CPU_SR cpu_sr = 0;
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static void lock(fdb_db_t db)
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{
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/* used to avoid reentry */
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if (cpu_sr & 0xff00) {
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while(1);
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}
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cpu_sr = CPU_SR_Save(0x20);
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cpu_sr |= 0xff00;
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}
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static void unlock(fdb_db_t db)
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{
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cpu_sr &= 0xff;
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CPU_SR_Restore(cpu_sr);
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}
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int flashdb_init(void)
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{
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fdb_err_t result;
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/* set the lock and unlock function if you want */
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fdb_kvdb_control(&kvdb, FDB_KVDB_CTRL_SET_LOCK, (void *)lock);
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fdb_kvdb_control(&kvdb, FDB_KVDB_CTRL_SET_UNLOCK, (void *)unlock);
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/* Key-Value database initialization
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*
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* &kvdb: database object
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* "env": database name
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* "fdb_kvdb1": The flash partition name base on FAL. Please make sure it's in FAL partition table.
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* Please change to YOUR partition name.
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* &default_kv: The default KV nodes. It will auto add to KVDB when first initialize successfully.
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* NULL: The user data if you need, now is empty.
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*/
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result = fdb_kvdb_init(&kvdb, "env", "FlashEnv", NULL, NULL);
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if (result != FDB_NO_ERR) {
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return -1;
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}
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return 0;
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}
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fdb_err_t flashdb_set(uint32_t key, uint8_t *value, uint32_t length)
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{
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struct fdb_blob blob;
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return fdb_kv_set_blob(&kvdb, key, fdb_blob_make(&blob, value, length));
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}
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size_t flashdb_get(uint32_t key, uint8_t *value, uint32_t length)
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{
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struct fdb_blob blob;
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return fdb_kv_get_blob(&kvdb, key, fdb_blob_make(&blob, value, length));
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}
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size_t flashdb_get_length(uint32_t key)
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{
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struct fdb_kv kv;
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if (fdb_kv_get_obj(&kvdb, key, &kv) == NULL) {
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return 0;
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}
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else {
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return kv.value_len;
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}
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}
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fdb_err_t flashdb_del(uint32_t key)
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{
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return fdb_kv_del(&kvdb, key);
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}
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