600 lines
16 KiB
C
600 lines
16 KiB
C
#include "c_stdio.h"
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#include "platform.h"
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#include "spiffs.h"
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#include "spiffs_nucleus.h"
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spiffs fs;
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#define LOG_PAGE_SIZE 256
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#define LOG_BLOCK_SIZE (INTERNAL_FLASH_SECTOR_SIZE * 2)
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#define LOG_BLOCK_SIZE_SMALL_FS (INTERNAL_FLASH_SECTOR_SIZE)
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#define MIN_BLOCKS_FS 4
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static u8_t spiffs_work_buf[LOG_PAGE_SIZE*2];
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static u8_t spiffs_fds[sizeof(spiffs_fd) * SPIFFS_MAX_OPEN_FILES];
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#if SPIFFS_CACHE
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static u8_t myspiffs_cache[(LOG_PAGE_SIZE+32)*2];
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#endif
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static s32_t my_spiffs_read(u32_t addr, u32_t size, u8_t *dst) {
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platform_flash_read(dst, addr, size);
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return SPIFFS_OK;
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}
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static s32_t my_spiffs_write(u32_t addr, u32_t size, u8_t *src) {
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platform_flash_write(src, addr, size);
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return SPIFFS_OK;
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}
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static s32_t my_spiffs_erase(u32_t addr, u32_t size) {
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u32_t sect_first = platform_flash_get_sector_of_address(addr);
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u32_t sect_last = sect_first;
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while( sect_first <= sect_last )
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if( platform_flash_erase_sector( sect_first ++ ) == PLATFORM_ERR )
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return SPIFFS_ERR_INTERNAL;
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return SPIFFS_OK;
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}
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void myspiffs_check_callback(spiffs_check_type type, spiffs_check_report report, u32_t arg1, u32_t arg2){
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// if(SPIFFS_CHECK_PROGRESS == report) return;
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// NODE_ERR("type: %d, report: %d, arg1: %d, arg2: %d\n", type, report, arg1, arg2);
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}
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/*******************
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The W25Q32BV array is organized into 16,384 programmable pages of 256-bytes each. Up to 256 bytes can be programmed at a time.
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Pages can be erased in groups of 16 (4KB sector erase), groups of 128 (32KB block erase), groups of 256 (64KB block erase) or
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the entire chip (chip erase). The W25Q32BV has 1,024 erasable sectors and 64 erasable blocks respectively.
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The small 4KB sectors allow for greater flexibility in applications that require data and parameter storage.
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********************/
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static bool myspiffs_set_location(spiffs_config *cfg, int align, int offset, int block_size) {
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#ifdef SPIFFS_FIXED_LOCATION
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cfg->phys_addr = (SPIFFS_FIXED_LOCATION + block_size - 1) & ~(block_size-1);
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#else
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if (flash_safe_get_size_byte() <= FLASH_SIZE_4MBYTE) {
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// 256kByte - 4MByte modules: SPIFFS partition starts right after firmware image
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cfg->phys_addr = ( u32_t )platform_flash_get_first_free_block_address( NULL ) + offset;
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cfg->phys_addr = (cfg->phys_addr + align - 1) & ~(align - 1);
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} else {
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// > 4MByte modules: SPIFFS partition starts after SDK data
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cfg->phys_addr = flash_rom_get_size_byte();
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}
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#endif
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#ifdef SPIFFS_SIZE_1M_BOUNDARY
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cfg->phys_size = ((0x100000 - (SYS_PARAM_SEC_NUM * INTERNAL_FLASH_SECTOR_SIZE) - ( ( u32_t )cfg->phys_addr )) & ~(block_size - 1)) & 0xfffff;
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#else
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cfg->phys_size = (INTERNAL_FLASH_SIZE - ( ( u32_t )cfg->phys_addr )) & ~(block_size - 1);
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#endif
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if ((int) cfg->phys_size < 0) {
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return FALSE;
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}
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cfg->log_block_size = block_size;
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return (cfg->phys_size / block_size) >= MIN_BLOCKS_FS;
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}
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/*
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* Returns TRUE if FS was found
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* align must be a power of two
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*/
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static bool myspiffs_set_cfg(spiffs_config *cfg, int align, int offset, bool force_create) {
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cfg->phys_erase_block = INTERNAL_FLASH_SECTOR_SIZE; // according to datasheet
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cfg->log_page_size = LOG_PAGE_SIZE; // as we said
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cfg->hal_read_f = my_spiffs_read;
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cfg->hal_write_f = my_spiffs_write;
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cfg->hal_erase_f = my_spiffs_erase;
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if (!myspiffs_set_location(cfg, align, offset, LOG_BLOCK_SIZE)) {
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if (!myspiffs_set_location(cfg, align, offset, LOG_BLOCK_SIZE_SMALL_FS)) {
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return FALSE;
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}
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}
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NODE_DBG("fs.start:%x,max:%x\n",cfg->phys_addr,cfg->phys_size);
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#ifdef SPIFFS_USE_MAGIC_LENGTH
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if (force_create) {
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return TRUE;
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}
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int size = SPIFFS_probe_fs(cfg);
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if (size > 0 && size < cfg->phys_size) {
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NODE_DBG("Overriding size:%x\n",size);
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cfg->phys_size = size;
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}
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if (size > 0) {
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return TRUE;
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}
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return FALSE;
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#else
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return TRUE;
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#endif
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}
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static bool myspiffs_find_cfg(spiffs_config *cfg, bool force_create) {
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int i;
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if (!force_create) {
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#ifdef SPIFFS_FIXED_LOCATION
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if (myspiffs_set_cfg(cfg, 0, 0, FALSE)) {
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return TRUE;
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}
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#else
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if (INTERNAL_FLASH_SIZE >= 700000) {
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for (i = 0; i < 8; i++) {
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if (myspiffs_set_cfg(cfg, 0x10000, 0x10000 * i, FALSE)) {
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return TRUE;
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}
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}
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}
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for (i = 0; i < 8; i++) {
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if (myspiffs_set_cfg(cfg, LOG_BLOCK_SIZE, LOG_BLOCK_SIZE * i, FALSE)) {
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return TRUE;
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}
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}
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#endif
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}
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// No existing file system -- set up for a format
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if (INTERNAL_FLASH_SIZE >= 700000) {
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myspiffs_set_cfg(cfg, 0x10000, 0x10000, TRUE);
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#ifndef SPIFFS_MAX_FILESYSTEM_SIZE
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if (cfg->phys_size < 400000) {
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// Don't waste so much in alignment
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myspiffs_set_cfg(cfg, LOG_BLOCK_SIZE, LOG_BLOCK_SIZE * 4, TRUE);
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}
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#endif
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} else {
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myspiffs_set_cfg(cfg, LOG_BLOCK_SIZE, 0, TRUE);
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}
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#ifdef SPIFFS_MAX_FILESYSTEM_SIZE
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if (cfg->phys_size > SPIFFS_MAX_FILESYSTEM_SIZE) {
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cfg->phys_size = (SPIFFS_MAX_FILESYSTEM_SIZE) & ~(cfg->log_block_size - 1);
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}
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#endif
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return FALSE;
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}
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static bool myspiffs_mount_internal(bool force_mount) {
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spiffs_config cfg;
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if (!myspiffs_find_cfg(&cfg, force_mount) && !force_mount) {
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return FALSE;
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}
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fs.err_code = 0;
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int res = SPIFFS_mount(&fs,
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&cfg,
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spiffs_work_buf,
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spiffs_fds,
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sizeof(spiffs_fds),
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#if SPIFFS_CACHE
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myspiffs_cache,
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sizeof(myspiffs_cache),
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#else
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0, 0,
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#endif
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// myspiffs_check_callback);
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0);
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NODE_DBG("mount res: %d, %d\n", res, fs.err_code);
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return res == SPIFFS_OK;
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}
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bool myspiffs_mount() {
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return myspiffs_mount_internal(FALSE);
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}
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void myspiffs_unmount() {
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SPIFFS_unmount(&fs);
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}
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// FS formatting function
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// Returns 1 if OK, 0 for error
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int myspiffs_format( void )
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{
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SPIFFS_unmount(&fs);
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myspiffs_mount_internal(TRUE);
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SPIFFS_unmount(&fs);
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NODE_DBG("Formatting: size 0x%x, addr 0x%x\n", fs.cfg.phys_size, fs.cfg.phys_addr);
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if (SPIFFS_format(&fs) < 0) {
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return 0;
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}
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return myspiffs_mount();
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}
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#if 0
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void test_spiffs() {
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char buf[12];
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// Surely, I've mounted spiffs before entering here
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spiffs_file fd = SPIFFS_open(&fs, "my_file", SPIFFS_CREAT | SPIFFS_TRUNC | SPIFFS_RDWR, 0);
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if (SPIFFS_write(&fs, fd, (u8_t *)"Hello world", 12) < 0) NODE_DBG("errno %i\n", SPIFFS_errno(&fs));
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SPIFFS_close(&fs, fd);
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fd = SPIFFS_open(&fs, "my_file", SPIFFS_RDWR, 0);
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if (SPIFFS_read(&fs, fd, (u8_t *)buf, 12) < 0) NODE_DBG("errno %i\n", SPIFFS_errno(&fs));
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SPIFFS_close(&fs, fd);
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NODE_DBG("--> %s <--\n", buf);
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}
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#endif
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// ***************************************************************************
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// vfs API
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// ***************************************************************************
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#include <c_stdlib.h>
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#include "vfs_int.h"
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#define MY_LDRV_ID "FLASH"
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// default current drive
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static int is_current_drive = TRUE;
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// forward declarations
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static sint32_t myspiffs_vfs_close( const struct vfs_file *fd );
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static sint32_t myspiffs_vfs_read( const struct vfs_file *fd, void *ptr, size_t len );
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static sint32_t myspiffs_vfs_write( const struct vfs_file *fd, const void *ptr, size_t len );
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static sint32_t myspiffs_vfs_lseek( const struct vfs_file *fd, sint32_t off, int whence );
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static sint32_t myspiffs_vfs_eof( const struct vfs_file *fd );
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static sint32_t myspiffs_vfs_tell( const struct vfs_file *fd );
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static sint32_t myspiffs_vfs_flush( const struct vfs_file *fd );
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static uint32_t myspiffs_vfs_size( const struct vfs_file *fd );
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static sint32_t myspiffs_vfs_ferrno( const struct vfs_file *fd );
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static sint32_t myspiffs_vfs_closedir( const struct vfs_dir *dd );
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static sint32_t myspiffs_vfs_readdir( const struct vfs_dir *dd, struct vfs_stat *buf );
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static vfs_vol *myspiffs_vfs_mount( const char *name, int num );
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static vfs_file *myspiffs_vfs_open( const char *name, const char *mode );
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static vfs_dir *myspiffs_vfs_opendir( const char *name );
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static sint32_t myspiffs_vfs_stat( const char *name, struct vfs_stat *buf );
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static sint32_t myspiffs_vfs_remove( const char *name );
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static sint32_t myspiffs_vfs_rename( const char *oldname, const char *newname );
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static sint32_t myspiffs_vfs_fsinfo( uint32_t *total, uint32_t *used );
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static sint32_t myspiffs_vfs_fscfg( uint32_t *phys_addr, uint32_t *phys_size );
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static sint32_t myspiffs_vfs_format( void );
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static sint32_t myspiffs_vfs_errno( void );
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static void myspiffs_vfs_clearerr( void );
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static sint32_t myspiffs_vfs_umount( const struct vfs_vol *vol );
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// ---------------------------------------------------------------------------
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// function tables
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//
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static vfs_fs_fns myspiffs_fs_fns = {
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.mount = myspiffs_vfs_mount,
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.open = myspiffs_vfs_open,
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.opendir = myspiffs_vfs_opendir,
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.stat = myspiffs_vfs_stat,
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.remove = myspiffs_vfs_remove,
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.rename = myspiffs_vfs_rename,
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.mkdir = NULL,
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.fsinfo = myspiffs_vfs_fsinfo,
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.fscfg = myspiffs_vfs_fscfg,
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.format = myspiffs_vfs_format,
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.chdrive = NULL,
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.chdir = NULL,
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.ferrno = myspiffs_vfs_errno,
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.clearerr = myspiffs_vfs_clearerr
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};
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static vfs_file_fns myspiffs_file_fns = {
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.close = myspiffs_vfs_close,
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.read = myspiffs_vfs_read,
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.write = myspiffs_vfs_write,
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.lseek = myspiffs_vfs_lseek,
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.eof = myspiffs_vfs_eof,
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.tell = myspiffs_vfs_tell,
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.flush = myspiffs_vfs_flush,
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.size = myspiffs_vfs_size,
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.ferrno = myspiffs_vfs_ferrno
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};
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static vfs_dir_fns myspiffs_dd_fns = {
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.close = myspiffs_vfs_closedir,
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.readdir = myspiffs_vfs_readdir
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};
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// ---------------------------------------------------------------------------
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// specific struct extensions
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//
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struct myvfs_file {
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struct vfs_file vfs_file;
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spiffs_file fh;
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};
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struct myvfs_dir {
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struct vfs_dir vfs_dir;
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spiffs_DIR d;
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};
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// ---------------------------------------------------------------------------
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// volume functions
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//
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static sint32_t myspiffs_vfs_umount( const struct vfs_vol *vol ) {
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// not implemented
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return VFS_RES_ERR;
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}
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// ---------------------------------------------------------------------------
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// dir functions
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//
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#define GET_DIR_D(descr) \
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const struct myvfs_dir *mydd = (const struct myvfs_dir *)descr; \
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spiffs_DIR *d = (spiffs_DIR *)&(mydd->d);
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static sint32_t myspiffs_vfs_closedir( const struct vfs_dir *dd ) {
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GET_DIR_D(dd);
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sint32_t res = SPIFFS_closedir( d );
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// free descriptor memory
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c_free( (void *)dd );
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}
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static sint32_t myspiffs_vfs_readdir( const struct vfs_dir *dd, struct vfs_stat *buf ) {
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GET_DIR_D(dd);
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struct spiffs_dirent dirent;
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if (SPIFFS_readdir( d, &dirent )) {
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c_memset( buf, 0, sizeof( struct vfs_stat ) );
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// copy entries to item
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// fill in supported stat entries
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c_strncpy( buf->name, dirent.name, FS_OBJ_NAME_LEN+1 );
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buf->name[FS_OBJ_NAME_LEN] = '\0';
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buf->size = dirent.size;
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return VFS_RES_OK;
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}
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return VFS_RES_ERR;
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}
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// ---------------------------------------------------------------------------
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// file functions
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//
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#define GET_FILE_FH(descr) \
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const struct myvfs_file *myfd = (const struct myvfs_file *)descr; \
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spiffs_file fh = myfd->fh;
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static sint32_t myspiffs_vfs_close( const struct vfs_file *fd ) {
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GET_FILE_FH(fd);
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sint32_t res = SPIFFS_close( &fs, fh );
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// free descriptor memory
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c_free( (void *)fd );
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return res;
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}
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static sint32_t myspiffs_vfs_read( const struct vfs_file *fd, void *ptr, size_t len ) {
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GET_FILE_FH(fd);
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sint32_t n = SPIFFS_read( &fs, fh, ptr, len );
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return n >= 0 ? n : VFS_RES_ERR;
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}
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static sint32_t myspiffs_vfs_write( const struct vfs_file *fd, const void *ptr, size_t len ) {
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GET_FILE_FH(fd);
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sint32_t n = SPIFFS_write( &fs, fh, (void *)ptr, len );
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return n >= 0 ? n : VFS_RES_ERR;
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}
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static sint32_t myspiffs_vfs_lseek( const struct vfs_file *fd, sint32_t off, int whence ) {
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GET_FILE_FH(fd);
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int spiffs_whence;
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switch (whence) {
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default:
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case VFS_SEEK_SET:
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spiffs_whence = SPIFFS_SEEK_SET;
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break;
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case VFS_SEEK_CUR:
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spiffs_whence = SPIFFS_SEEK_CUR;
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break;
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case VFS_SEEK_END:
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spiffs_whence = SPIFFS_SEEK_END;
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break;
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}
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sint32_t res = SPIFFS_lseek( &fs, fh, off, spiffs_whence );
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return res >= 0 ? res : VFS_RES_ERR;
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}
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static sint32_t myspiffs_vfs_eof( const struct vfs_file *fd ) {
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GET_FILE_FH(fd);
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return SPIFFS_eof( &fs, fh );
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}
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static sint32_t myspiffs_vfs_tell( const struct vfs_file *fd ) {
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GET_FILE_FH(fd);
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return SPIFFS_tell( &fs, fh );
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}
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static sint32_t myspiffs_vfs_flush( const struct vfs_file *fd ) {
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GET_FILE_FH(fd);
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return SPIFFS_fflush( &fs, fh ) >= 0 ? VFS_RES_OK : VFS_RES_ERR;
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}
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static uint32_t myspiffs_vfs_size( const struct vfs_file *fd ) {
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GET_FILE_FH(fd);
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int32_t curpos = SPIFFS_tell( &fs, fh );
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int32_t size = SPIFFS_lseek( &fs, fh, 0, SPIFFS_SEEK_END );
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(void) SPIFFS_lseek( &fs, fh, curpos, SPIFFS_SEEK_SET );
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return size;
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}
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static sint32_t myspiffs_vfs_ferrno( const struct vfs_file *fd ) {
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return SPIFFS_errno( &fs );
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}
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static int fs_mode2flag(const char *mode){
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if(c_strlen(mode)==1){
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if(c_strcmp(mode,"w")==0)
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return SPIFFS_WRONLY|SPIFFS_CREAT|SPIFFS_TRUNC;
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else if(c_strcmp(mode, "r")==0)
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return SPIFFS_RDONLY;
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else if(c_strcmp(mode, "a")==0)
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return SPIFFS_WRONLY|SPIFFS_CREAT|SPIFFS_APPEND;
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else
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return SPIFFS_RDONLY;
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} else if (c_strlen(mode)==2){
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if(c_strcmp(mode,"r+")==0)
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return SPIFFS_RDWR;
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else if(c_strcmp(mode, "w+")==0)
|
||
return SPIFFS_RDWR|SPIFFS_CREAT|SPIFFS_TRUNC;
|
||
else if(c_strcmp(mode, "a+")==0)
|
||
return SPIFFS_RDWR|SPIFFS_CREAT|SPIFFS_APPEND;
|
||
else
|
||
return SPIFFS_RDONLY;
|
||
} else {
|
||
return SPIFFS_RDONLY;
|
||
}
|
||
}
|
||
|
||
// ---------------------------------------------------------------------------
|
||
// filesystem functions
|
||
//
|
||
static vfs_file *myspiffs_vfs_open( const char *name, const char *mode ) {
|
||
struct myvfs_file *fd;
|
||
int flags = fs_mode2flag( mode );
|
||
|
||
if (fd = (struct myvfs_file *)c_malloc( sizeof( struct myvfs_file ) )) {
|
||
if (0 < (fd->fh = SPIFFS_open( &fs, name, flags, 0 ))) {
|
||
fd->vfs_file.fs_type = VFS_FS_SPIFFS;
|
||
fd->vfs_file.fns = &myspiffs_file_fns;
|
||
return (vfs_file *)fd;
|
||
} else {
|
||
c_free( fd );
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static vfs_dir *myspiffs_vfs_opendir( const char *name ){
|
||
struct myvfs_dir *dd;
|
||
|
||
if (dd = (struct myvfs_dir *)c_malloc( sizeof( struct myvfs_dir ) )) {
|
||
if (SPIFFS_opendir( &fs, name, &(dd->d) )) {
|
||
dd->vfs_dir.fs_type = VFS_FS_SPIFFS;
|
||
dd->vfs_dir.fns = &myspiffs_dd_fns;
|
||
return (vfs_dir *)dd;
|
||
} else {
|
||
c_free( dd );
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_stat( const char *name, struct vfs_stat *buf ) {
|
||
spiffs_stat stat;
|
||
|
||
if (0 <= SPIFFS_stat( &fs, name, &stat )) {
|
||
c_memset( buf, 0, sizeof( struct vfs_stat ) );
|
||
|
||
// fill in supported stat entries
|
||
c_strncpy( buf->name, stat.name, FS_OBJ_NAME_LEN+1 );
|
||
buf->name[FS_OBJ_NAME_LEN] = '\0';
|
||
buf->size = stat.size;
|
||
|
||
return VFS_RES_OK;
|
||
} else {
|
||
return VFS_RES_ERR;
|
||
}
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_remove( const char *name ) {
|
||
return SPIFFS_remove( &fs, name );
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_rename( const char *oldname, const char *newname ) {
|
||
return SPIFFS_rename( &fs, oldname, newname );
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_fsinfo( uint32_t *total, uint32_t *used ) {
|
||
return SPIFFS_info( &fs, total, used );
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_fscfg( uint32_t *phys_addr, uint32_t *phys_size ) {
|
||
*phys_addr = fs.cfg.phys_addr;
|
||
*phys_size = fs.cfg.phys_size;
|
||
return VFS_RES_OK;
|
||
}
|
||
|
||
static vfs_vol *myspiffs_vfs_mount( const char *name, int num ) {
|
||
// volume descriptor not supported, just return TRUE / FALSE
|
||
return myspiffs_mount() ? (vfs_vol *)1 : NULL;
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_format( void ) {
|
||
return myspiffs_format();
|
||
}
|
||
|
||
static sint32_t myspiffs_vfs_errno( void ) {
|
||
return SPIFFS_errno( &fs );
|
||
}
|
||
|
||
static void myspiffs_vfs_clearerr( void ) {
|
||
SPIFFS_clearerr( &fs );
|
||
}
|
||
|
||
|
||
// ---------------------------------------------------------------------------
|
||
// VFS interface functions
|
||
//
|
||
vfs_fs_fns *myspiffs_realm( const char *inname, char **outname, int set_current_drive ) {
|
||
if (inname[0] == '/') {
|
||
size_t idstr_len = c_strlen( MY_LDRV_ID );
|
||
// logical drive is specified, check if it's our id
|
||
if (0 == c_strncmp( &(inname[1]), MY_LDRV_ID, idstr_len )) {
|
||
*outname = (char *)&(inname[1 + idstr_len]);
|
||
if (*outname[0] == '/') {
|
||
// skip leading /
|
||
(*outname)++;
|
||
}
|
||
|
||
if (set_current_drive) is_current_drive = TRUE;
|
||
return &myspiffs_fs_fns;
|
||
}
|
||
} else {
|
||
// no logical drive in patchspec, are we current drive?
|
||
if (is_current_drive) {
|
||
*outname = (char *)inname;
|
||
return &myspiffs_fs_fns;
|
||
}
|
||
}
|
||
|
||
if (set_current_drive) is_current_drive = FALSE;
|
||
return NULL;
|
||
}
|