535 lines
15 KiB
C
535 lines
15 KiB
C
#include <stdio.h>
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#include "platform.h"
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#include "spiffs.h"
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/*
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* With the intoduction of a unified FatFS and SPIFFS support (#1397), the SPIFFS
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* interface is now abstracted through a uses a single SPIFFS entry point
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* myspiffs_realm() which returns a vfs_fs_fns object (as does myfatfs_realm()).
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* All other functions and data are static.
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*
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* Non-OS SDK V3.0 introduces a flash partition table (PT) and SPIFFS has now been
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* updated to support this:
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* - SPIFFS limits search to the specifed SPIFFS0 address and size.
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* - Any headroom / offset from other partitions is reflected in the PT allocations.
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* - Unforced mounts will attempt to mount any valid SPIFSS found in this range
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* (NodeMCU uses the SPIFFS_USE_MAGIC setting to make existing FS discoverable).
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* - Subject to the following, no offset or FS search is done. The FS is assumed
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* to be at the first valid location at the start of the partition.
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*/
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#include "spiffs_nucleus.h"
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static 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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#define MASK_1MB (0x100000-1)
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#define ALIGN (0x2000)
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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[20 + (LOG_PAGE_SIZE+20)*4];
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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 int erase_cnt = -1; // If set to >=0 then erasing gives a ... feedback
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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 (erase_cnt >= 0 && (erase_cnt++ & 0xF) == 0) {
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dbg_printf(".");
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}
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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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}
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}
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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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* Note that the W25Q32BV array is organized into 16,384 programmable pages of 256-bytes
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* each. Up to 256 bytes can be programmed at a time. Pages can be erased in groups of
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* 16 (4KB sector erase), groups of 128 (32KB block erase), groups of 256 (64KB block
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* erase) or the entire chip (chip erase). The W25Q32BV has 1,024 erasable sectors and
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* 64 erasable blocks respectively. The small 4KB sectors allow for greater flexibility
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* in applications that require data and parameter storage.
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*
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* Returns TRUE if FS was found.
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*/
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static bool myspiffs_set_cfg(spiffs_config *cfg, bool force_create) {
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uint32 pt_start, pt_size, pt_end;
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pt_size = platform_flash_get_partition (NODEMCU_SPIFFS0_PARTITION, &pt_start);
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if (pt_size == 0) {
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return FALSE;
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}
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pt_end = pt_start + pt_size;
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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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cfg->phys_erase_block = INTERNAL_FLASH_SECTOR_SIZE;
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cfg->log_page_size = LOG_PAGE_SIZE;
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cfg->phys_addr = (pt_start + ALIGN - 1) & ~(ALIGN - 1);
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cfg->phys_size = (pt_end & ~(ALIGN - 1)) - cfg->phys_addr;
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if (cfg->phys_size < MIN_BLOCKS_FS * LOG_BLOCK_SIZE_SMALL_FS) {
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return FALSE;
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} else if (cfg->phys_size < MIN_BLOCKS_FS * LOG_BLOCK_SIZE_SMALL_FS) {
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cfg->log_block_size = LOG_BLOCK_SIZE_SMALL_FS;
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} else {
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cfg->log_block_size = LOG_BLOCK_SIZE;
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}
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#ifdef SPIFFS_USE_MAGIC_LENGTH
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if (!force_create) {
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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 FALSE;
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}
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}
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#endif
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NODE_DBG("myspiffs set cfg block: %x %x %x %x %x %x\n", pt_start, pt_end,
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cfg->phys_size, cfg->phys_addr, cfg->phys_size, cfg->log_block_size);
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return TRUE;
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}
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static bool myspiffs_mount(bool force_mount) {
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spiffs_config cfg;
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if (!myspiffs_set_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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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(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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erase_cnt = 0;
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int status = SPIFFS_format(&fs);
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erase_cnt = -1;
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return status < 0 ? 0 : myspiffs_mount(FALSE);
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}
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// ***************************************************************************
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// vfs API
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// ***************************************************************************
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#include <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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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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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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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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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(strlen(mode)==1){
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if(strcmp(mode,"w")==0)
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return SPIFFS_WRONLY|SPIFFS_CREAT|SPIFFS_TRUNC;
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else if(strcmp(mode, "r")==0)
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return SPIFFS_RDONLY;
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else if(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 (strlen(mode)==2){
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if(strcmp(mode,"r+")==0)
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return SPIFFS_RDWR;
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else if(strcmp(mode, "w+")==0)
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return SPIFFS_RDWR|SPIFFS_CREAT|SPIFFS_TRUNC;
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else if(strcmp(mode, "a+")==0)
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return SPIFFS_RDWR|SPIFFS_CREAT|SPIFFS_APPEND;
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else
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return SPIFFS_RDONLY;
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} else {
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return SPIFFS_RDONLY;
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}
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}
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// ---------------------------------------------------------------------------
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// filesystem functions
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//
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static vfs_file *myspiffs_vfs_open( const char *name, const char *mode ) {
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struct myvfs_file *fd;
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int flags = fs_mode2flag( mode );
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if (fd = (struct myvfs_file *)malloc( sizeof( struct myvfs_file ) )) {
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if (0 < (fd->fh = SPIFFS_open( &fs, name, flags, 0 ))) {
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fd->vfs_file.fs_type = VFS_FS_SPIFFS;
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fd->vfs_file.fns = &myspiffs_file_fns;
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return (vfs_file *)fd;
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} else {
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free( fd );
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}
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}
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return NULL;
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}
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static vfs_dir *myspiffs_vfs_opendir( const char *name ){
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struct myvfs_dir *dd;
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if (dd = (struct myvfs_dir *)malloc( sizeof( struct myvfs_dir ) )) {
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if (SPIFFS_opendir( &fs, name, &(dd->d) )) {
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dd->vfs_dir.fs_type = VFS_FS_SPIFFS;
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dd->vfs_dir.fns = &myspiffs_dd_fns;
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return (vfs_dir *)dd;
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} else {
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free( dd );
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}
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}
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return NULL;
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}
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static sint32_t myspiffs_vfs_stat( const char *name, struct vfs_stat *buf ) {
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spiffs_stat stat;
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if (0 <= SPIFFS_stat( &fs, name, &stat )) {
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memset( buf, 0, sizeof( struct vfs_stat ) );
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// fill in supported stat entries
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strncpy( buf->name, stat.name, FS_OBJ_NAME_LEN+1 );
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buf->name[FS_OBJ_NAME_LEN] = '\0';
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buf->size = stat.size;
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return VFS_RES_OK;
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} else {
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return VFS_RES_ERR;
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}
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}
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||
|
||
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(FALSE) ? (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] == '/') {
|
||
// logical drive is specified, check if it's our id
|
||
if (0 == strncmp(inname + 1, MY_LDRV_ID, sizeof(MY_LDRV_ID)-1)) {
|
||
*outname = (char *)(inname + sizeof(MY_LDRV_ID));
|
||
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;
|
||
}
|