moyuhai
232 lines
6.2 KiB
C
232 lines
6.2 KiB
C
/*!
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* \file diskio.c
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*
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* \brief Target disk I/O implementation
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*
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* \copyright Revised BSD License, see section \ref LICENSE.
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*
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* \code
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*
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* _ __ _ ________ _
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* | |/ /(_)___ / ____/ /_ (_)___
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* | // / __ \/ / / __ \/ / __ \
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* / |/ / / / / /___/ / / / / /_/ /
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* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
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* /_/
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* (C) 2022-2025 XinChip
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*
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* \endcode
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*
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* \author ( XinChip ) Alex-J
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*
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* \author ( XinChip )
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*/
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/*-----------------------------------------------------------------------------------
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INCLUDE HEADE FILES
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------------------------------------------------------------------------------------*/
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#include "diskio.h"
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#include "ff_gen_drv.h"
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#include "msc_flash.h"
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#include "time_conv.h"
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/*------------------------------------------------------------------------------------
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Macros
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-------------------------------------------
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-----------------------------------------*/
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#if defined(__GNUC__)
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#ifndef __weak
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#define __weak __attribute__((weak))
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#endif
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#endif
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#define DEV_USB 0 /* Example: Map USB MSD to physical drive 0 */
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/*------------------------------------------------------------------------------------
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Global Variables
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-------------------------------------------
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-----------------------------------------*/
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extern Disk_drvTypeDef disk;
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/*------------------------------------------------------------------------------------
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Functions
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-------------------------------------------
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-----------------------------------------*/
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/**
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* @brief Gets Disk Status
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* @param pdrv: Physical drive number (0..)
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* @retval DSTATUS: Operation status
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*/
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DSTATUS disk_status(BYTE pdrv /* Physical drive number to identify the drive */
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)
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{
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DSTATUS stat = STA_NOINIT;
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// stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]);
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if (FAT_FLASH_ID == Fat_Flash_ReadID()) {
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stat = RES_OK;
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} else {
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stat = STA_NOINIT;
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}
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return stat;
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}
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/**
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* @brief Initializes a Drive
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* @param pdrv: Physical drive number (0..)
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* @retval DSTATUS: Operation status
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*/
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DSTATUS
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disk_initialize(BYTE pdrv /* Physical drive nmuber to identify the drive */
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)
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{
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DSTATUS stat = STA_NOINIT;
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switch (pdrv) {
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case DEV_USB: {
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if (true == Disk_Init())
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stat = RES_OK;
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} break;
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}
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// if(disk.is_initialized[pdrv] == 0)
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// {
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// disk.is_initialized[pdrv] = 1;
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// stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]);
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// }
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return stat;
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}
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/**
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* @brief Reads Sector(s)
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* @param pdrv: Physical drive number (0..)
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* @param *buff: Data buffer to store read data
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* @param sector: Sector address (LBA)
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* @param count: Number of sectors to read (1..128)
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* @retval DRESULT: Operation result
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*/
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DRESULT disk_read(BYTE pdrv, /* Physical drive nmuber to identify the drive */
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BYTE *buff, /* Data buffer to store read data */
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DWORD sector, /* Sector address in LBA */
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UINT count /* Number of sectors to read */
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)
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{
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DRESULT res = RES_ERROR;
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switch (pdrv) {
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case DEV_USB: {
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if (Disk_UnitRead(sector, count, buff) == true) {
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res = RES_OK;
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}
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} break;
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}
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// res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count);
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return res;
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}
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/**
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* @brief Writes Sector(s)
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* @param pdrv: Physical drive number (0..)
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* @param *buff: Data to be written
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* @param sector: Sector address (LBA)
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* @param count: Number of sectors to write (1..128)
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* @retval DRESULT: Operation result
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*/
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#if _USE_WRITE == 1
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DRESULT disk_write(BYTE pdrv, /* Physical drive nmuber to identify the drive */
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const BYTE *buff, /* Data to be written */
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DWORD sector, /* Sector address in LBA */
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UINT count /* Number of sectors to write */
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)
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{
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DRESULT res = RES_ERROR;
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switch (pdrv) {
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case DEV_USB: {
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if (Disk_UnitWrite(sector, count, (uint8_t *)buff) == true) {
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res = RES_OK;
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}
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} break;
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}
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// res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count);
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return res;
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}
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#endif /* _USE_WRITE == 1 */
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/**
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* @brief I/O control operation
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* @param pdrv: Physical drive number (0..)
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* @param cmd: Control code
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* @param *buff: Buffer to send/receive control data
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* @retval DRESULT: Operation result
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*/
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#if _USE_IOCTL == 1
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DRESULT disk_ioctl(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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DRESULT res = RES_PARERR;
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switch (pdrv) {
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case DEV_USB: {
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switch (cmd) {
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case CTRL_SYNC:
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res = RES_OK;
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break;
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case GET_SECTOR_COUNT: {
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*(DWORD *)buff = Disk_UnitCount();
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res = RES_OK;
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break;
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}
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case GET_SECTOR_SIZE: {
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*(DWORD *)buff = Disk_UnitSize();
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res = RES_OK;
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break;
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}
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case GET_BLOCK_SIZE: {
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*(DWORD *)buff = 1;
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res = RES_OK;
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break;
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}
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default:
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res = RES_PARERR;
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break;
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}
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} break;
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}
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// res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff);
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return res;
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}
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#endif /* _USE_IOCTL == 1 */
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/**
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* @brief Gets Time from RTC
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* @param None
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* @retval Time in DWORD
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*/
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__weak DWORD get_fattime(void)
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{
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uint32_t fattime;
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// utc sec convert to utc date
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DateTime_t tmp_date = UTC_SecToDate(Utc_TotalSec);
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tmp_date = UTC_DateToZoneDate(TIME_ZONE, YEAR_BASE, tmp_date.year,
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tmp_date.month, tmp_date.day, tmp_date.hour,
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tmp_date.min, tmp_date.sec, tmp_date.week);
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fattime = ((YEAR_BASE + tmp_date.year - 1980) << 25) |
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(tmp_date.month << 21) | (tmp_date.day << 16) |
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(tmp_date.hour << 11) | (tmp_date.min << 5) | (tmp_date.sec >> 1);
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return fattime;
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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