288 lines
8.2 KiB
C
288 lines
8.2 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file user_diskio.c
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* @brief This file includes a diskio driver skeleton to be completed by the user.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2020 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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#ifdef USE_OBSOLETE_USER_CODE_SECTION_0
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/*
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* Warning: the user section 0 is no more in use (starting from CubeMx version 4.16.0)
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* To be suppressed in the future.
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* Kept to ensure backward compatibility with previous CubeMx versions when
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* migrating projects.
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* User code previously added there should be copied in the new user sections before
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* the section contents can be deleted.
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*/
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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#endif
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/* USER CODE BEGIN DECL */
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/* Includes ------------------------------------------------------------------*/
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#include "user_diskio.h"
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#include <furi_hal.h>
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#include "sector_cache.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Disk status */
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static volatile DSTATUS Stat = STA_NOINIT;
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static DSTATUS User_CheckStatus(BYTE lun) {
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UNUSED(lun);
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Stat = STA_NOINIT;
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if(sd_get_card_state() == SdSpiStatusOK) {
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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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/* USER CODE END DECL */
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/* Private function prototypes -----------------------------------------------*/
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DSTATUS USER_initialize(BYTE pdrv);
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DSTATUS USER_status(BYTE pdrv);
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DRESULT USER_read(BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
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#if _USE_WRITE == 1
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DRESULT USER_write(BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
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#endif /* _USE_WRITE == 1 */
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#if _USE_IOCTL == 1
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DRESULT USER_ioctl(BYTE pdrv, BYTE cmd, void* buff);
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#endif /* _USE_IOCTL == 1 */
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Diskio_drvTypeDef USER_Driver = {
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USER_initialize,
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USER_status,
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USER_read,
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#if _USE_WRITE
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USER_write,
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#endif /* _USE_WRITE == 1 */
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#if _USE_IOCTL == 1
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USER_ioctl,
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#endif /* _USE_IOCTL == 1 */
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};
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/* Private functions ---------------------------------------------------------*/
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static inline bool sd_cache_get(uint32_t address, uint32_t* data) {
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uint8_t* cached_data = sector_cache_get(address);
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if(cached_data) {
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memcpy(data, cached_data, SD_BLOCK_SIZE);
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return true;
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}
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return false;
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}
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static inline void sd_cache_put(uint32_t address, uint32_t* data) {
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sector_cache_put(address, (uint8_t*)data);
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}
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static inline void sd_cache_invalidate_range(uint32_t start_sector, uint32_t end_sector) {
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sector_cache_invalidate_range(start_sector, end_sector);
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}
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static inline void sd_cache_invalidate_all() {
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sector_cache_init();
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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 USER_initialize(BYTE pdrv) {
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/* USER CODE BEGIN INIT */
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_sd_fast);
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furi_hal_sd_spi_handle = &furi_hal_spi_bus_handle_sd_fast;
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DSTATUS status = User_CheckStatus(pdrv);
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furi_hal_sd_spi_handle = NULL;
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furi_hal_spi_release(&furi_hal_spi_bus_handle_sd_fast);
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return status;
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/* USER CODE END INIT */
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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 USER_status(BYTE pdrv) {
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/* USER CODE BEGIN STATUS */
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UNUSED(pdrv);
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return Stat;
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/* USER CODE END STATUS */
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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 USER_read(BYTE pdrv, BYTE* buff, DWORD sector, UINT count) {
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/* USER CODE BEGIN READ */
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UNUSED(pdrv);
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DRESULT res = RES_ERROR;
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bool single_sector = count == 1;
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if(single_sector) {
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if(sd_cache_get(sector, (uint32_t*)buff)) {
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return RES_OK;
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}
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}
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_sd_fast);
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furi_hal_sd_spi_handle = &furi_hal_spi_bus_handle_sd_fast;
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if(sd_read_blocks((uint32_t*)buff, (uint32_t)(sector), count, SD_TIMEOUT_MS) ==
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SdSpiStatusOK) {
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FuriHalCortexTimer timer = furi_hal_cortex_timer_get(SD_TIMEOUT_MS * 1000);
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/* wait until the read operation is finished */
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res = RES_OK;
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while(sd_get_card_state() != SdSpiStatusOK) {
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if(furi_hal_cortex_timer_is_expired(timer)) {
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res = RES_ERROR;
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break;
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}
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}
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}
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furi_hal_sd_spi_handle = NULL;
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furi_hal_spi_release(&furi_hal_spi_bus_handle_sd_fast);
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if(single_sector && res == RES_OK) {
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sd_cache_put(sector, (uint32_t*)buff);
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}
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return res;
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/* USER CODE END READ */
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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 USER_write(BYTE pdrv, const BYTE* buff, DWORD sector, UINT count) {
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/* USER CODE BEGIN WRITE */
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/* USER CODE HERE */
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UNUSED(pdrv);
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DRESULT res = RES_ERROR;
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sd_cache_invalidate_range(sector, sector + count);
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_sd_fast);
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furi_hal_sd_spi_handle = &furi_hal_spi_bus_handle_sd_fast;
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if(sd_write_blocks((uint32_t*)buff, (uint32_t)(sector), count, SD_TIMEOUT_MS) ==
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SdSpiStatusOK) {
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FuriHalCortexTimer timer = furi_hal_cortex_timer_get(SD_TIMEOUT_MS * 1000);
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/* wait until the Write operation is finished */
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res = RES_OK;
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while(sd_get_card_state() != SdSpiStatusOK) {
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if(furi_hal_cortex_timer_is_expired(timer)) {
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sd_cache_invalidate_all();
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res = RES_ERROR;
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break;
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}
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}
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}
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furi_hal_sd_spi_handle = NULL;
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furi_hal_spi_release(&furi_hal_spi_bus_handle_sd_fast);
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return res;
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/* USER CODE END WRITE */
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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 USER_ioctl(BYTE pdrv, BYTE cmd, void* buff) {
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/* USER CODE BEGIN IOCTL */
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UNUSED(pdrv);
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DRESULT res = RES_ERROR;
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SD_CardInfo CardInfo;
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if(Stat & STA_NOINIT) return RES_NOTRDY;
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furi_hal_spi_acquire(&furi_hal_spi_bus_handle_sd_fast);
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furi_hal_sd_spi_handle = &furi_hal_spi_bus_handle_sd_fast;
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switch(cmd) {
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/* Make sure that no pending write process */
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case CTRL_SYNC:
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res = RES_OK;
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break;
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/* Get number of sectors on the disk (DWORD) */
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case GET_SECTOR_COUNT:
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sd_get_card_info(&CardInfo);
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*(DWORD*)buff = CardInfo.LogBlockNbr;
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res = RES_OK;
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break;
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/* Get R/W sector size (WORD) */
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case GET_SECTOR_SIZE:
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sd_get_card_info(&CardInfo);
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*(WORD*)buff = CardInfo.LogBlockSize;
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res = RES_OK;
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break;
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/* Get erase block size in unit of sector (DWORD) */
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case GET_BLOCK_SIZE:
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sd_get_card_info(&CardInfo);
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*(DWORD*)buff = CardInfo.LogBlockSize;
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res = RES_OK;
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break;
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default:
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res = RES_PARERR;
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}
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furi_hal_sd_spi_handle = NULL;
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furi_hal_spi_release(&furi_hal_spi_bus_handle_sd_fast);
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return res;
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/* USER CODE END IOCTL */
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}
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#endif /* _USE_IOCTL == 1 */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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