93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*-----------------------------------------------------------------------*/
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/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2016 */
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/* ESP-IDF port Copyright 2016 Espressif Systems (Shanghai) PTE LTD */
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/*-----------------------------------------------------------------------*/
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/* If a working storage control module is available, it should be */
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/* attached to the FatFs via a glue function rather than modifying it. */
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/* This is an example of glue functions to attach various exsisting */
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/* storage control modules to the FatFs module with a defined API. */
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/*-----------------------------------------------------------------------*/
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#include <string.h>
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#include <time.h>
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#include <sys/time.h>
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#include "diskio.h" /* FatFs lower layer API */
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#include "ffconf.h"
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#include "ff.h"
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static ff_diskio_impl_t * s_impls[FF_VOLUMES] = { NULL };
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#if FF_MULTI_PARTITION /* Multiple partition configuration */
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PARTITION VolToPart[] = {
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{0, 0}, /* Logical drive 0 ==> Physical drive 0, auto detection */
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{1, 0} /* Logical drive 1 ==> Physical drive 1, auto detection */
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};
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#endif
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esp_err_t ff_diskio_get_drive(BYTE* out_pdrv)
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{
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BYTE i;
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for(i=0; i<FF_VOLUMES; i++) {
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if (!s_impls[i]) {
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*out_pdrv = i;
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return ESP_OK;
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}
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}
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return ESP_ERR_NOT_FOUND;
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}
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void ff_diskio_register(BYTE pdrv, const ff_diskio_impl_t* discio_impl)
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{
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assert(pdrv < FF_VOLUMES);
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if (s_impls[pdrv]) {
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ff_diskio_impl_t* im = s_impls[pdrv];
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s_impls[pdrv] = NULL;
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free(im);
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}
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if (!discio_impl) {
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return;
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}
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ff_diskio_impl_t * impl = (ff_diskio_impl_t *)malloc(sizeof(ff_diskio_impl_t));
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assert(impl != NULL);
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memcpy(impl, discio_impl, sizeof(ff_diskio_impl_t));
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s_impls[pdrv] = impl;
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}
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DSTATUS ff_disk_initialize (BYTE pdrv)
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{
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return s_impls[pdrv]->init(pdrv);
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}
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DSTATUS ff_disk_status (BYTE pdrv)
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{
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return s_impls[pdrv]->status(pdrv);
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}
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DRESULT ff_disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count)
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{
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return s_impls[pdrv]->read(pdrv, buff, sector, count);
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}
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DRESULT ff_disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count)
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{
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return s_impls[pdrv]->write(pdrv, buff, sector, count);
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}
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DRESULT ff_disk_ioctl (BYTE pdrv, BYTE cmd, void* buff)
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{
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return s_impls[pdrv]->ioctl(pdrv, cmd, buff);
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}
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DWORD get_fattime(void)
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{
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time_t t = time(NULL);
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struct tm tmr;
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localtime_r(&t, &tmr);
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int year = tmr.tm_year < 80 ? 0 : tmr.tm_year - 80;
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return ((DWORD)(year) << 25)
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| ((DWORD)(tmr.tm_mon + 1) << 21)
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| ((DWORD)tmr.tm_mday << 16)
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| (WORD)(tmr.tm_hour << 11)
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| (WORD)(tmr.tm_min << 5)
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| (WORD)(tmr.tm_sec >> 1);
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}
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