280 lines
8.7 KiB
C
280 lines
8.7 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* Original template for this file comes from:
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* Low level disk I/O module skeleton for FatFs, (C)ChaN, 2013
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include "stm32f4xx_hal.h"
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#include "py/runtime.h"
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#include "lib/fatfs/ff.h" /* FatFs lower layer API */
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#include "lib/fatfs/diskio.h" /* FatFs lower layer API */
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#include "rtc.h"
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#include "storage.h"
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#include "sdcard.h"
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#include "fsusermount.h"
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const PARTITION VolToPart[] = {
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{0, 1}, // Logical drive 0 ==> Physical drive 0, 1st partition
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{1, 0}, // Logical drive 1 ==> Physical drive 1 (auto detection)
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{2, 0}, // Logical drive 2 ==> Physical drive 2 (auto detection)
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/*
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{0, 2}, // Logical drive 2 ==> Physical drive 0, 2nd partition
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{0, 3}, // Logical drive 3 ==> Physical drive 0, 3rd partition
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*/
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};
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/* Definitions of physical drive number for each media */
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#define PD_FLASH (0)
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#define PD_SDCARD (1)
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#define PD_USER (2)
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/*-----------------------------------------------------------------------*/
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/* Initialize a Drive */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_initialize (
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BYTE pdrv /* Physical drive nmuber (0..) */
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)
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{
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switch (pdrv) {
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case PD_FLASH:
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storage_init();
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return 0;
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#if MICROPY_HW_HAS_SDCARD
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case PD_SDCARD:
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if (!sdcard_power_on()) {
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return STA_NODISK;
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}
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// TODO return STA_PROTECT if SD card is read only
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return 0;
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#endif
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case PD_USER:
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if (fs_user_mount == NULL) {
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return STA_NODISK;
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}
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if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
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return STA_PROTECT;
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}
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return 0;
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}
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return STA_NOINIT;
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}
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/*-----------------------------------------------------------------------*/
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/* Get Disk Status */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_status (
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BYTE pdrv /* Physical drive nmuber (0..) */
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)
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{
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switch (pdrv) {
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case PD_FLASH :
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// flash is ready
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return 0;
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#if MICROPY_HW_HAS_SDCARD
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case PD_SDCARD:
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// TODO return STA_PROTECT if SD card is read only
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return 0;
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#endif
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case PD_USER:
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if (fs_user_mount == NULL) {
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return STA_NODISK;
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}
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if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
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return STA_PROTECT;
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}
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return 0;
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}
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return STA_NOINIT;
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}
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/*-----------------------------------------------------------------------*/
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/* Read Sector(s) */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_read (
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BYTE pdrv, /* Physical drive nmuber (0..) */
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BYTE *buff, /* Data buffer to store read data */
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DWORD sector, /* Sector address (LBA) */
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UINT count /* Number of sectors to read (1..128) */
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)
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{
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switch (pdrv) {
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case PD_FLASH:
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for (int i = 0; i < count; i++) {
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if (!storage_read_block(buff + i * FLASH_BLOCK_SIZE, sector + i)) {
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return RES_ERROR;
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}
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}
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return RES_OK;
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#if MICROPY_HW_HAS_SDCARD
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case PD_SDCARD:
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if (sdcard_read_blocks(buff, sector, count) != 0) {
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return RES_ERROR;
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}
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return RES_OK;
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#endif
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case PD_USER:
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fs_user_mount->readblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
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fs_user_mount->readblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, buff);
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mp_call_method_n_kw(2, 0, fs_user_mount->readblocks);
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return RES_OK;
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}
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return RES_PARERR;
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}
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/*-----------------------------------------------------------------------*/
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/* Write Sector(s) */
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/*-----------------------------------------------------------------------*/
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#if _USE_WRITE
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DRESULT disk_write (
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BYTE pdrv, /* Physical drive nmuber (0..) */
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const BYTE *buff, /* Data to be written */
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DWORD sector, /* Sector address (LBA) */
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UINT count /* Number of sectors to write (1..128) */
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)
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{
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switch (pdrv) {
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case PD_FLASH:
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for (int i = 0; i < count; i++) {
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if (!storage_write_block(buff + i * FLASH_BLOCK_SIZE, sector + i)) {
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return RES_ERROR;
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}
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}
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return RES_OK;
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#if MICROPY_HW_HAS_SDCARD
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case PD_SDCARD:
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if (sdcard_write_blocks(buff, sector, count) != 0) {
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return RES_ERROR;
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}
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return RES_OK;
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#endif
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case PD_USER:
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if (fs_user_mount->writeblocks[0] == MP_OBJ_NULL) {
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// read-only block device
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return RES_ERROR;
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}
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fs_user_mount->writeblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
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fs_user_mount->writeblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, (void*)buff);
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mp_call_method_n_kw(2, 0, fs_user_mount->writeblocks);
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return RES_OK;
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}
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return RES_PARERR;
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}
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#endif
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/*-----------------------------------------------------------------------*/
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/* Miscellaneous Functions */
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/*-----------------------------------------------------------------------*/
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#if _USE_IOCTL
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DRESULT disk_ioctl (
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BYTE pdrv, /* Physical drive nmuber (0..) */
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BYTE cmd, /* Control code */
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void *buff /* Buffer to send/receive control data */
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)
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{
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switch (pdrv) {
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case PD_FLASH:
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switch (cmd) {
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case CTRL_SYNC:
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storage_flush();
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return RES_OK;
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case GET_BLOCK_SIZE:
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*((DWORD*)buff) = 1; // high-level sector erase size in units of the small (512) block size
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return RES_OK;
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}
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break;
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#if MICROPY_HW_HAS_SDCARD
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case PD_SDCARD:
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switch (cmd) {
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case CTRL_SYNC:
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return RES_OK;
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case GET_BLOCK_SIZE:
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*((DWORD*)buff) = 1; // high-level sector erase size in units of the small (512) block size
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return RES_OK;
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}
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break;
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#endif
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case PD_USER:
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switch (cmd) {
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case CTRL_SYNC:
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if (fs_user_mount->sync[0] != MP_OBJ_NULL) {
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mp_call_method_n_kw(0, 0, fs_user_mount->sync);
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}
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return RES_OK;
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case GET_BLOCK_SIZE:
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*((DWORD*)buff) = 1; // high-level sector erase size in units of the small (512) bl
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return RES_OK;
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case GET_SECTOR_COUNT: {
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mp_obj_t ret = mp_call_method_n_kw(0, 0, fs_user_mount->count);
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*((DWORD*)buff) = mp_obj_get_int(ret);
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return RES_OK;
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}
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}
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break;
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}
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return RES_PARERR;
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}
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#endif
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DWORD get_fattime (
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void
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)
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{
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RTC_TimeTypeDef time;
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RTC_DateTypeDef date;
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HAL_RTC_GetTime(&RTCHandle, &time, FORMAT_BIN);
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HAL_RTC_GetDate(&RTCHandle, &date, FORMAT_BIN);
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return ((2000 + date.Year - 1980) << 25) | ((date.Month) << 21) | ((date.Date) << 16) | ((time.Hours) << 11) | ((time.Minutes) << 5) | (time.Seconds / 2);
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}
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