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card.c
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card.c
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/** @file
* @brief Source file for fatfs managment functions
*/
#include "project.h"
#include "card.h"
#include "assert.h"
#define SD_CARD_DISABLE 1U
#define SD_CARD_ENABLE 0U
const unsigned long rtcYear = 2018;
const unsigned long rtcMonth = 10;
const unsigned long rtcDay = 16;
const unsigned long rtcHour = 10;
const unsigned long rtcMinutes = 32;
const unsigned long rtcSeconds = 0;
FATFS fatFs;
static bool isInit = false;
static bool isMounted = false;
bool cardMount(void)
{
char label[128] = {0};
DWORD freeclusters;
DWORD freesectors;
DWORD totalsectors;
FATFS *fatFsPtr;
uint8 resultF;
bool result = false;
ASSERT(isInit);
if (isMounted)
{
uartPrintf("SD: Already mounted!\r\n");
result = true;
} else
{
do {
resultF = f_mount(&fatFs, "", 1);
if (RES_OK != resultF)
{
uartPrintf("SD: f_mount failed %d\r\n", resultF);
break;
}
resultF = f_getlabel("", label, 0);
if (RES_OK != resultF)
{
uartPrintf("SD: f_getlabel failed %d\r\n", resultF);
break;
}
resultF = f_getfree("", &freeclusters, &fatFsPtr);
if (RES_OK != resultF)
{
uartPrintf("SD: f_getfree failed %d\r\n", resultF);
break;
}
totalsectors = (fatFsPtr->n_fatent - 2) * fatFsPtr->csize;
freesectors = freeclusters * fatFsPtr->csize;
result = true;
isMounted = true;
} while (false);
if (result)
{
uartPrintf("SD: Mounted!\r\n");
uartPrintf("SD: Label: %s\r\n", label);
uartPrintf("SD: Free clusters: %d\r\n", freeclusters);
uartPrintf("SD: Total sectors: %d\r\n", totalsectors);
uartPrintf("SD: Free sectors: %d\r\n", freesectors);
}
}
if (!result)
{
cardErrorPrint(resultF);
}
return result;
}
void cardUmount(void)
{
uint8 resultF;
ASSERT(isInit);
if (isMounted)
{
resultF = f_mount(NULL, "", 1);
if (RES_OK != resultF)
{
cardErrorPrint(resultF);
}
uartPrintf("SD: Unmounted!\r\n");
isMounted = false;
} else
{
uartPrintf("SD: Unmount - not mounted!\r\n");
}
}
void cardInit(void)
{
isInit = true;
SPI_Start();
SPI_ss0_m_Write(SD_CARD_DISABLE);
uartPrintf("SD: Inited\r\n");
}
void cardErrorPrint(FRESULT result)
{
switch (result)
{
case FR_DISK_ERR:
uartPrintf("SD: error: (FR_DISK_ERR) low level error.\r\n");
break;
case FR_INT_ERR:
uartPrintf("SD: error: (FR_INT_ERR)\r\n");
break;
case FR_NOT_READY:
uartPrintf("SD: error: (FR_NOT_READY) card not ready.\r\n");
break;
case FR_NO_FILE:
uartPrintf("SD: error: (FR_NO_FILE) invalid file.\r\n");
break;
case FR_NO_PATH:
uartPrintf("SD: error: (FR_NO_PATH) invalid path.\r\n");
break;
case FR_INVALID_NAME:
uartPrintf("SD: error: (FR_INVALID_NAME) invalid name.\r\n");
break;
case FR_DENIED:
uartPrintf("SD: error: (FR_DENIED) operation denied.\r\n");
break;
case FR_EXIST:
uartPrintf("SD: error: (FR_EXIST) it exists yet...\r\n");
break;
case FR_INVALID_OBJECT:
uartPrintf("SD: error: (FR_INVALID_OBJECT)\r\n");
break;
case FR_WRITE_PROTECTED:
uartPrintf("SD: error: (FR_WRITE_PROTECTED)\r\n");
break;
case FR_INVALID_DRIVE:
uartPrintf("SD: error: (FR_INVALID_DRIVE)\r\n");
break;
case FR_NOT_ENABLED:
uartPrintf("SD: error: (FR_NOT_ENABLED) card unmounted.\r\n");
break;
case FR_NO_FILESYSTEM:
uartPrintf("SD: error: (FR_NO_FILESYSTEM) no valid FAT volume.\r\n");
break;
case FR_MKFS_ABORTED:
uartPrintf("SD: error: (FR_MKFS_ABORTED)\r\n");
break;
case FR_TIMEOUT:
uartPrintf("SD: error: (FR_TIMEOUT)\r\n");
break;
case FR_LOCKED:
uartPrintf("SD: error: (FR_LOCKED)\r\n");
break;
case FR_NOT_ENOUGH_CORE:
uartPrintf("SD: error: (FR_NOT_ENOUGH_CORE)\r\n");
break;
case FR_TOO_MANY_OPEN_FILES:
uartPrintf("SD: error: (FR_TOO_MANY_OPEN_FILES)\r\n");
break;
case FR_INVALID_PARAMETER:
uartPrintf("SD: error: (FR_INVALID_PARAMETER)\r\n");
break;
default:
break;
}
}
DWORD get_fattime()
{
return (((DWORD)rtcYear - 1980) << 25) | ((DWORD)rtcMonth << 21) | ((DWORD)rtcDay << 16)| (WORD)(rtcHour << 11)|
(WORD)(rtcMinutes << 5) | (WORD)(rtcSeconds >> 1);;
}