kopia lustrzana https://github.com/micropython/micropython
stmhal: Change 64-bit arithmetic to 32-bit for SD card block addressing.
By measuring SD card addresses in blocks and not bytes, one can get away with using 32-bit numbers. This patch also uses proper atomic lock/unlock around SD card read/write, adds SD.info() function, and gives error code for failed read/writes.pull/863/head
Damien George
rodzic
6ff42c54bb
commit
1d7fb82f0a
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@ -127,7 +127,7 @@ DRESULT disk_read (
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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)) {
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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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@ -160,7 +160,7 @@ DRESULT disk_write (
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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)) {
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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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@ -630,8 +630,9 @@ void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd);
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* @{
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*/
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/* Blocking mode: Polling */
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks);
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// dpgeorge: read/write functions renamed to emphasise that address is given by block number
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_Erase(SD_HandleTypeDef *hsd, uint64_t startaddr, uint64_t endaddr);
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/* Non-Blocking mode: Interrupt */
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@ -646,8 +647,9 @@ void HAL_SD_XferCpltCallback(SD_HandleTypeDef *hsd);
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void HAL_SD_XferErrorCallback(SD_HandleTypeDef *hsd);
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/* Non-Blocking mode: DMA */
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks);
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// dpgeorge: read/write functions renamed to emphasise that address is given by block number
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
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HAL_SD_ErrorTypedef HAL_SD_CheckWriteOperation(SD_HandleTypeDef *hsd, uint32_t Timeout);
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HAL_SD_ErrorTypedef HAL_SD_CheckReadOperation(SD_HandleTypeDef *hsd, uint32_t Timeout);
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/**
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@ -449,13 +449,13 @@ __weak void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd)
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* is managed by polling mode.
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* @param hsd: SD handle
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* @param pReadBuffer: pointer to the buffer that will contain the received data
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* @param ReadAddr: Address from where data is to be read
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* @param BlockNumber: Block number from where data is to be read (byte address = BlockNumber * BlockSize)
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* @param BlockSize: SD card Data block size
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* This parameter should be 512
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* @param NumberOfBlocks: Number of SD blocks to read
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* @retval SD Card error state
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*/
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks)
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
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{
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SDIO_CmdInitTypeDef sdio_cmdinitstructure;
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SDIO_DataInitTypeDef sdio_datainitstructure;
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@ -465,10 +465,16 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
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/* Initialize data control register */
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hsd->Instance->DCTRL = 0;
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uint32_t ReadAddr;
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if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
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{
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BlockSize = 512;
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ReadAddr /= 512;
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ReadAddr = BlockNumber;
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}
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else
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{
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// should not overflow for standard-capacity cards
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ReadAddr = BlockNumber * BlockSize;
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}
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/* Set Block Size for Card */
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@ -507,7 +513,7 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
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sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
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}
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sdio_cmdinitstructure.Argument = (uint32_t)ReadAddr;
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sdio_cmdinitstructure.Argument = ReadAddr;
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SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
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/* Read block(s) in polling mode */
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@ -633,13 +639,13 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
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* transfer is managed by polling mode.
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* @param hsd: SD handle
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* @param pWriteBuffer: pointer to the buffer that will contain the data to transmit
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* @param WriteAddr: Address from where data is to be written
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* @param BlockNumber: Block number to where data is to be written (byte address = BlockNumber * BlockSize)
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* @param BlockSize: SD card Data block size
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* This parameter should be 512.
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* @param NumberOfBlocks: Number of SD blocks to write
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* @retval SD Card error state
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*/
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks)
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
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{
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SDIO_CmdInitTypeDef sdio_cmdinitstructure;
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SDIO_DataInitTypeDef sdio_datainitstructure;
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@ -651,10 +657,16 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
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/* Initialize data control register */
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hsd->Instance->DCTRL = 0;
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uint32_t WriteAddr;
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if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
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{
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BlockSize = 512;
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WriteAddr /= 512;
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WriteAddr = BlockNumber;
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}
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else
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{
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// should not overflow for standard-capacity cards
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WriteAddr = BlockNumber * BlockSize;
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}
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/* Set Block Size for Card */
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@ -684,7 +696,7 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
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sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK;
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}
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sdio_cmdinitstructure.Argument = (uint32_t)WriteAddr;
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sdio_cmdinitstructure.Argument = WriteAddr;
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SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
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/* Check for error conditions */
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@ -851,13 +863,13 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
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* to check the completion of the read process
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* @param hsd: SD handle
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* @param pReadBuffer: Pointer to the buffer that will contain the received data
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* @param ReadAddr: Address from where data is to be read
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* @param BlockNumber: Block number from where data is to be read (byte address = BlockNumber * BlockSize)
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* @param BlockSize: SD card Data block size
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* This paramater should be 512.
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* @param NumberOfBlocks: Number of blocks to read.
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* @retval SD Card error state
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*/
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks)
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HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
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{
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SDIO_CmdInitTypeDef sdio_cmdinitstructure;
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SDIO_DataInitTypeDef sdio_datainitstructure;
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@ -898,10 +910,16 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
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/* Enable the DMA Stream */
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HAL_DMA_Start_IT(hsd->hdmarx, (uint32_t)&hsd->Instance->FIFO, (uint32_t)pReadBuffer, (uint32_t)(BlockSize * NumberOfBlocks));
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uint32_t ReadAddr;
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if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
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{
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BlockSize = 512;
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ReadAddr /= 512;
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ReadAddr = BlockNumber;
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}
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else
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{
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// should not overflow for standard-capacity cards
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ReadAddr = BlockNumber * BlockSize;
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}
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/* Set Block Size for Card */
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@ -941,7 +959,7 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
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sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
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}
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sdio_cmdinitstructure.Argument = (uint32_t)ReadAddr;
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sdio_cmdinitstructure.Argument = ReadAddr;
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SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
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/* Check for error conditions */
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@ -968,13 +986,13 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
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* to check the completion of the write process (by SD current status polling).
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* @param hsd: SD handle
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* @param pWriteBuffer: pointer to the buffer that will contain the data to transmit
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* @param WriteAddr: Address from where data is to be read
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* @param BlockNumber: Block number to where data is to be written (byte address = BlockNumber * BlockSize)
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* @param BlockSize: the SD card Data block size
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* This parameter should be 512.
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* @param NumberOfBlocks: Number of blocks to write
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* @retval SD Card error state
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*/
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks)
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HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
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{
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SDIO_CmdInitTypeDef sdio_cmdinitstructure;
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SDIO_DataInitTypeDef sdio_datainitstructure;
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@ -1015,10 +1033,16 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWri
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/* Enable SDIO DMA transfer */
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__HAL_SD_SDIO_DMA_ENABLE();
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uint32_t WriteAddr;
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if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
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{
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BlockSize = 512;
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WriteAddr /= 512;
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WriteAddr = BlockNumber;
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}
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else
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{
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// should not overflow for standard-capacity cards
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WriteAddr = BlockNumber * BlockSize;
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}
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/* Set Block Size for Card */
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@ -1049,7 +1073,7 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWri
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sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_MULT_BLOCK;
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}
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sdio_cmdinitstructure.Argument = (uint32_t)WriteAddr;
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sdio_cmdinitstructure.Argument = WriteAddr;
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SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
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/* Check for error conditions */
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104
stmhal/sdcard.c
104
stmhal/sdcard.c
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@ -141,54 +141,46 @@ uint64_t sdcard_get_capacity_in_bytes(void) {
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return cardinfo.CardCapacity;
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}
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bool sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) {
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mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) {
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// check that dest pointer is aligned on a 4-byte boundary
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if (((uint32_t)dest & 3) != 0) {
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return false;
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return SD_ERROR;
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}
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// check that SD card is initialised
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if (sd_handle.Instance == NULL) {
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return false;
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return SD_ERROR;
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}
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// We must disable IRQs because the SDIO peripheral has a small FIFO
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// buffer and we can't let it fill up in the middle of a read.
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// This will not be needed when SD uses DMA for transfer.
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__disable_irq();
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HAL_SD_ErrorTypedef err = HAL_SD_ReadBlocks(&sd_handle, (uint32_t*)dest, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks);
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__enable_irq();
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mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION();
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HAL_SD_ErrorTypedef err = HAL_SD_ReadBlocks_BlockNumber(&sd_handle, (uint32_t*)dest, block_num, SDCARD_BLOCK_SIZE, num_blocks);
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MICROPY_END_ATOMIC_SECTION(atomic_state);
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if (err != SD_OK) {
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return false;
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}
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return true;
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return err;
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}
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bool sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
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mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
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// check that src pointer is aligned on a 4-byte boundary
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if (((uint32_t)src & 3) != 0) {
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return false;
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return SD_ERROR;
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}
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// check that SD card is initialised
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if (sd_handle.Instance == NULL) {
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return false;
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return SD_ERROR;
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}
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// We must disable IRQs because the SDIO peripheral has a small FIFO
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// buffer and we can't let it drain to empty in the middle of a write.
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// This will not be needed when SD uses DMA for transfer.
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__disable_irq();
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HAL_SD_ErrorTypedef err = HAL_SD_WriteBlocks(&sd_handle, (uint32_t*)src, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks);
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__enable_irq();
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mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION();
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HAL_SD_ErrorTypedef err = HAL_SD_WriteBlocks_BlockNumber(&sd_handle, (uint32_t*)src, block_num, SDCARD_BLOCK_SIZE, num_blocks);
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MICROPY_END_ATOMIC_SECTION(atomic_state);
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if (err != SD_OK) {
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return false;
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}
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return true;
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return err;
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}
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#if 0
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@ -205,7 +197,7 @@ bool sdcard_read_blocks_dma(uint8_t *dest, uint32_t block_num, uint32_t num_bloc
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}
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// do the read
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if (HAL_SD_ReadBlocks_DMA(&sd_handle, (uint32_t*)dest, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE) != SD_OK) {
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if (HAL_SD_ReadBlocks_BlockNumber_DMA(&sd_handle, (uint32_t*)dest, block_num, SDCARD_BLOCK_SIZE) != SD_OK) {
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return false;
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}
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@ -230,7 +222,7 @@ bool sdcard_write_blocks_dma(const uint8_t *src, uint32_t block_num, uint32_t nu
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SD_Error status;
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status = HAL_SD_WriteBlock_DMA(&sd_handle, (uint32_t*)src, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks);
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status = HAL_SD_WriteBlocks_BlockNumber_DMA(&sd_handle, (uint32_t*)src, block_num, SDCARD_BLOCK_SIZE, num_blocks);
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if (status != SD_OK) {
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return false;
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}
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@ -247,14 +239,17 @@ bool sdcard_write_blocks_dma(const uint8_t *src, uint32_t block_num, uint32_t nu
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/******************************************************************************/
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// Micro Python bindings
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//
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// Note: these function are a bit ad-hoc at the moment and are mainly intended
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// for testing purposes. In the future SD should be a proper class with a
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// consistent interface and methods to mount/unmount it.
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static mp_obj_t sd_present(mp_obj_t self) {
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STATIC mp_obj_t sd_present(mp_obj_t self) {
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return MP_BOOL(sdcard_is_present());
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(sd_present_obj, sd_present);
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static MP_DEFINE_CONST_FUN_OBJ_1(sd_present_obj, sd_present);
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static mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
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STATIC mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
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bool result;
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if (mp_obj_is_true(state)) {
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result = sdcard_power_on();
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@ -264,40 +259,59 @@ static mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
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}
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return MP_BOOL(result);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power);
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static MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power);
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static mp_obj_t sd_read(mp_obj_t self, mp_obj_t block_num) {
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uint8_t *dest = m_new(uint8_t, SDCARD_BLOCK_SIZE);
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if (!sdcard_read_blocks(dest, mp_obj_get_int(block_num), 1)) {
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m_free(dest, SDCARD_BLOCK_SIZE);
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STATIC mp_obj_t sd_info(mp_obj_t self) {
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HAL_SD_ErrorTypedef HAL_SD_Init(SD_HandleTypeDef *hsd, HAL_SD_CardInfoTypedef *SDCardInfo);
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if (sd_handle.Instance == NULL) {
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return mp_const_none;
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}
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HAL_SD_CardInfoTypedef cardinfo;
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HAL_SD_Get_CardInfo(&sd_handle, &cardinfo);
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// cardinfo.SD_csd and cardinfo.SD_cid have lots of info but we don't use them
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mp_obj_t tuple[3] = {
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mp_obj_new_int_from_ull(cardinfo.CardCapacity),
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mp_obj_new_int_from_uint(cardinfo.CardBlockSize),
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mp_obj_new_int(cardinfo.CardType),
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};
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return mp_obj_new_tuple(3, tuple);
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}
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||||
STATIC MP_DEFINE_CONST_FUN_OBJ_1(sd_info_obj, sd_info);
|
||||
|
||||
STATIC mp_obj_t sd_read(mp_obj_t self, mp_obj_t block_num) {
|
||||
uint8_t *dest = m_new(uint8_t, SDCARD_BLOCK_SIZE);
|
||||
mp_uint_t ret = sdcard_read_blocks(dest, mp_obj_get_int(block_num), 1);
|
||||
|
||||
if (ret != 0) {
|
||||
m_free(dest, SDCARD_BLOCK_SIZE);
|
||||
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_read_blocks failed [%u]", ret));
|
||||
}
|
||||
|
||||
return mp_obj_new_bytearray_by_ref(SDCARD_BLOCK_SIZE, dest);
|
||||
}
|
||||
STATIC MP_DEFINE_CONST_FUN_OBJ_2(sd_read_obj, sd_read);
|
||||
|
||||
static MP_DEFINE_CONST_FUN_OBJ_2(sd_read_obj, sd_read);
|
||||
|
||||
static mp_obj_t sd_write(mp_obj_t self, mp_obj_t block_num, mp_obj_t source) {
|
||||
STATIC mp_obj_t sd_write(mp_obj_t self, mp_obj_t block_num, mp_obj_t data) {
|
||||
mp_buffer_info_t bufinfo;
|
||||
uint8_t tmp[1];
|
||||
|
||||
pyb_buf_get_for_send(source, &bufinfo, tmp);
|
||||
mp_get_buffer_raise(data, &bufinfo, MP_BUFFER_READ);
|
||||
if (bufinfo.len % SDCARD_BLOCK_SIZE != 0) {
|
||||
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "writes must be aligned to SDCARD_BLOCK_SIZE (%d) bytes", SDCARD_BLOCK_SIZE));
|
||||
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "writes must be a multiple of %d bytes", SDCARD_BLOCK_SIZE));
|
||||
}
|
||||
|
||||
if (!sdcard_write_blocks(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SDCARD_BLOCK_SIZE)) {
|
||||
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_write_blocks failed"));
|
||||
mp_uint_t ret = sdcard_write_blocks(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SDCARD_BLOCK_SIZE);
|
||||
|
||||
if (ret != 0) {
|
||||
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_write_blocks failed [%u]", ret));
|
||||
}
|
||||
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
static MP_DEFINE_CONST_FUN_OBJ_3(sd_write_obj, sd_write);
|
||||
STATIC MP_DEFINE_CONST_FUN_OBJ_3(sd_write_obj, sd_write);
|
||||
|
||||
STATIC const mp_map_elem_t sdcard_locals_dict_table[] = {
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_present), (mp_obj_t)&sd_present_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_power), (mp_obj_t)&sd_power_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&sd_info_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&sd_read_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&sd_write_obj },
|
||||
};
|
||||
|
|
|
|||
|
|
@ -32,7 +32,9 @@ bool sdcard_is_present(void);
|
|||
bool sdcard_power_on(void);
|
||||
void sdcard_power_off(void);
|
||||
uint64_t sdcard_get_capacity_in_bytes(void);
|
||||
bool sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
|
||||
bool sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
|
||||
|
||||
// these return 0 on success, non-zero on error
|
||||
mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
|
||||
mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
|
||||
|
||||
extern const struct _mp_obj_base_t pyb_sdcard_obj;
|
||||
|
|
|
|||
|
|
@ -321,7 +321,7 @@ int8_t SDCARD_STORAGE_PreventAllowMediumRemoval(uint8_t lun, uint8_t param) {
|
|||
* @retval Status
|
||||
*/
|
||||
int8_t SDCARD_STORAGE_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) {
|
||||
if (!sdcard_read_blocks(buf, blk_addr, blk_len)) {
|
||||
if (sdcard_read_blocks(buf, blk_addr, blk_len) != 0) {
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
|
|
@ -336,7 +336,7 @@ int8_t SDCARD_STORAGE_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_
|
|||
* @retval Status
|
||||
*/
|
||||
int8_t SDCARD_STORAGE_Write(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) {
|
||||
if (!sdcard_write_blocks(buf, blk_addr, blk_len)) {
|
||||
if (sdcard_write_blocks(buf, blk_addr, blk_len) != 0) {
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -83,7 +83,7 @@ typedef struct {
|
|||
uint16_t scsi_blk_size;
|
||||
uint32_t scsi_blk_nbr;
|
||||
|
||||
uint32_t scsi_blk_addr;
|
||||
uint32_t scsi_blk_addr_in_blks;
|
||||
uint32_t scsi_blk_len;
|
||||
} USBD_MSC_BOT_HandleTypeDef;
|
||||
|
||||
|
|
|
|||
|
|
@ -510,7 +510,7 @@ static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *para
|
|||
return -1;
|
||||
}
|
||||
|
||||
hmsc->scsi_blk_addr = (params[2] << 24) | \
|
||||
hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | \
|
||||
(params[3] << 16) | \
|
||||
(params[4] << 8) | \
|
||||
params[5];
|
||||
|
|
@ -520,13 +520,12 @@ static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *para
|
|||
|
||||
|
||||
|
||||
if( SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr, hmsc->scsi_blk_len) < 0)
|
||||
if( SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr_in_blks, hmsc->scsi_blk_len) < 0)
|
||||
{
|
||||
return -1; /* error */
|
||||
}
|
||||
|
||||
hmsc->bot_state = USBD_BOT_DATA_IN;
|
||||
hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
|
||||
hmsc->scsi_blk_len *= hmsc->scsi_blk_size;
|
||||
|
||||
/* cases 4,5 : Hi <> Dn */
|
||||
|
|
@ -591,7 +590,7 @@ static int8_t SCSI_Write10 (USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
|
|||
}
|
||||
|
||||
|
||||
hmsc->scsi_blk_addr = (params[2] << 24) | \
|
||||
hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | \
|
||||
(params[3] << 16) | \
|
||||
(params[4] << 8) | \
|
||||
params[5];
|
||||
|
|
@ -601,13 +600,12 @@ static int8_t SCSI_Write10 (USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
|
|||
/* check if LBA address is in the right range */
|
||||
if(SCSI_CheckAddressRange(pdev,
|
||||
lun,
|
||||
hmsc->scsi_blk_addr,
|
||||
hmsc->scsi_blk_addr_in_blks,
|
||||
hmsc->scsi_blk_len) < 0)
|
||||
{
|
||||
return -1; /* error */
|
||||
}
|
||||
|
||||
hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
|
||||
hmsc->scsi_blk_len *= hmsc->scsi_blk_size;
|
||||
|
||||
/* cases 3,11,13 : Hn,Ho <> D0 */
|
||||
|
|
@ -656,9 +654,12 @@ static int8_t SCSI_Verify10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
|
|||
return -1; /* Error, Verify Mode Not supported*/
|
||||
}
|
||||
|
||||
hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | (params[3] << 16) | (params[4] << 8) | params[5];
|
||||
hmsc->scsi_blk_len = (params[7] << 8) | params[8];
|
||||
|
||||
if(SCSI_CheckAddressRange(pdev,
|
||||
lun,
|
||||
hmsc->scsi_blk_addr,
|
||||
hmsc->scsi_blk_addr_in_blks,
|
||||
hmsc->scsi_blk_len) < 0)
|
||||
{
|
||||
return -1; /* error */
|
||||
|
|
@ -705,7 +706,7 @@ static int8_t SCSI_ProcessRead (USBD_HandleTypeDef *pdev, uint8_t lun)
|
|||
|
||||
if( ((USBD_StorageTypeDef *)pdev->pUserData)->Read(lun ,
|
||||
hmsc->bot_data,
|
||||
hmsc->scsi_blk_addr / hmsc->scsi_blk_size,
|
||||
hmsc->scsi_blk_addr_in_blks,
|
||||
len / hmsc->scsi_blk_size) < 0)
|
||||
{
|
||||
|
||||
|
|
@ -723,7 +724,7 @@ static int8_t SCSI_ProcessRead (USBD_HandleTypeDef *pdev, uint8_t lun)
|
|||
len);
|
||||
|
||||
|
||||
hmsc->scsi_blk_addr += len;
|
||||
hmsc->scsi_blk_addr_in_blks += len / hmsc->scsi_blk_size;
|
||||
hmsc->scsi_blk_len -= len;
|
||||
|
||||
/* case 6 : Hi = Di */
|
||||
|
|
@ -752,7 +753,7 @@ static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef *pdev, uint8_t lun)
|
|||
|
||||
if(((USBD_StorageTypeDef *)pdev->pUserData)->Write(lun ,
|
||||
hmsc->bot_data,
|
||||
hmsc->scsi_blk_addr / hmsc->scsi_blk_size,
|
||||
hmsc->scsi_blk_addr_in_blks,
|
||||
len / hmsc->scsi_blk_size) < 0)
|
||||
{
|
||||
SCSI_SenseCode(pdev,
|
||||
|
|
@ -763,7 +764,7 @@ static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef *pdev, uint8_t lun)
|
|||
}
|
||||
|
||||
|
||||
hmsc->scsi_blk_addr += len;
|
||||
hmsc->scsi_blk_addr_in_blks += len / hmsc->scsi_blk_size;
|
||||
hmsc->scsi_blk_len -= len;
|
||||
|
||||
/* case 12 : Ho = Do */
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue