generated from Embedded_Projects/Landzo_K60Z_LwIP
146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* Copyright 2016 NXP
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include "fsl_card.h"
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#include "ff.h"
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#include "diskio.h"
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/*******************************************************************************
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* Definitons
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******************************************************************************/
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/*! @brief Card descriptor */
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static sd_card_t g_sd;
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/*******************************************************************************
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* Code
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******************************************************************************/
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DRESULT disk_write(BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count)
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{
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if (kStatus_Success != SD_WriteBlocks(&g_sd, buff, sector, count))
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{
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return RES_ERROR;
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}
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return RES_OK;
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}
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DRESULT disk_read(BYTE pdrv, BYTE* buff, LBA_t sector, UINT count)
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{
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if (kStatus_Success != SD_ReadBlocks(&g_sd, buff, sector, count))
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{
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return RES_ERROR;
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}
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return RES_OK;
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}
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DRESULT disk_ioctl(uint8_t physicalDrive, uint8_t command, void *buffer)
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{
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DRESULT result = RES_OK;
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switch (command)
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{
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case GET_SECTOR_COUNT:
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if (buffer)
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{
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*(uint32_t *)buffer = g_sd.blockCount;
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}
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else
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{
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result = RES_PARERR;
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}
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break;
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case GET_SECTOR_SIZE:
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if (buffer)
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{
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*(uint32_t *)buffer = g_sd.blockSize;
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}
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else
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{
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result = RES_PARERR;
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}
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break;
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case GET_BLOCK_SIZE:
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if (buffer)
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{
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*(uint32_t *)buffer = g_sd.csd.eraseSectorSize;
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}
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else
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{
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result = RES_PARERR;
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}
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break;
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case CTRL_SYNC:
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result = RES_OK;
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break;
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default:
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result = RES_PARERR;
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break;
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}
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return result;
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}
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DSTATUS disk_status(BYTE pdrv)
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{
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return 0;
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}
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DSTATUS disk_initialize(BYTE pdrv)
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{
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/* Save host information. */
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g_sd.host.base = SD_HOST_BASEADDR;
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g_sd.host.sourceClock_Hz = SD_HOST_CLK_FREQ;
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volatile status_t ret = SD_Init(&g_sd);
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if (kStatus_Success != ret)
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{
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SD_Deinit(&g_sd);
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memset(&g_sd, 0U, sizeof(g_sd));
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return STA_NOINIT;
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}
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return 0;
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}
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