104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
#include "lfs.h"
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#include "esp_partition.h"
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#include "nvs_flash.h"
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#include "platform.h"
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#if defined(CONFIG_NODEMCU_EMBEDDED_LFS_SIZE)
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// Symbol provided by embedded_lfs component
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extern const char lua_flash_store_reserved[0];
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#endif
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bool lfs_get_location(lfs_location_info_t *out)
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{
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#if defined(CONFIG_NODEMCU_EMBEDDED_LFS_SIZE)
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out->size = CONFIG_NODEMCU_EMBEDDED_LFS_SIZE;
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out->addr_mem = lua_flash_store_reserved;
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out->addr_phys = spi_flash_cache2phys(lua_flash_store_reserved);
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if (out->addr_phys == SPI_FLASH_CACHE2PHYS_FAIL) {
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NODE_ERR("spi_flash_cache2phys failed\n");
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return false;
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}
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else
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return true;
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#else
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const esp_partition_t *part = esp_partition_find_first(
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PLATFORM_PARTITION_TYPE_NODEMCU,
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PLATFORM_PARTITION_SUBTYPE_NODEMCU_LFS,
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NULL);
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if (!part)
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return false; // Nothing to do if no LFS partition available
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out->size = part->size; // in bytes
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out->addr_mem = spi_flash_phys2cache(out->addr_phys, SPI_FLASH_MMAP_DATA);
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out->addr_phys = part->address;
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if (!out->addr_mem) { // not already mmap'd, have to do it ourselves
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spi_flash_mmap_handle_t ignored;
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esp_err_t err = spi_flash_mmap(
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out->addr_phys, out->size, SPI_FLASH_MMAP_DATA, &out->addr_mem, &ignored);
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if (err != ESP_OK) {
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NODE_ERR("Unable to access LFS partition - is it 64kB aligned as it needs to be?\n");
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return false;
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}
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}
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return true;
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#endif
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}
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#define LFS_LOAD_NS "lfsload"
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#define LFS_LOAD_FILE_KEY "filename"
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bool lfs_get_load_filename(char *buf, size_t bufsiz)
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{
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bool res = false;
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nvs_handle_t handle;
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esp_err_t err = nvs_open(LFS_LOAD_NS, NVS_READONLY, &handle);
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if (err != ESP_OK)
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goto out;
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err = nvs_get_str(handle, LFS_LOAD_FILE_KEY, buf, &bufsiz);
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if (err != ESP_OK)
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goto close_out;
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res = true;
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close_out:
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nvs_close(handle);
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out:
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return res;
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}
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bool lfs_set_load_filename(const char *fname)
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{
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bool res = false;
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nvs_handle_t handle;
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esp_err_t err = nvs_open(LFS_LOAD_NS, NVS_READWRITE, &handle);
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if (err != ESP_OK)
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goto out;
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err = nvs_set_str(handle, LFS_LOAD_FILE_KEY, fname);
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if (err != ESP_OK)
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goto close_out;
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res = true;
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close_out:
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nvs_close(handle);
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out:
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return res;
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}
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bool lfs_clear_load_filename(void)
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{
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bool res = false;
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nvs_handle_t handle;
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esp_err_t err = nvs_open(LFS_LOAD_NS, NVS_READWRITE, &handle);
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if (err != ESP_OK)
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goto out;
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err = nvs_erase_key(handle, LFS_LOAD_FILE_KEY);
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if (err != ESP_OK)
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goto close_out;
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res = true;
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close_out:
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nvs_close(handle);
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out:
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return res;
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}
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