msdscsi.c File Reference

SCSI interface for Mass Storage Devices (MSD).

License

Copyright 2018 Silicon Laboratories Inc. www.silabs.com

The licensor of this software is Silicon Laboratories Inc. Your use of this software is governed by the terms of Silicon Labs Master Software License Agreement (MSLA) available at www.silabs.com/about-us/legal/master-software-license-agreement. This software is distributed to you in Source Code format and is governed by the sections of the MSLA applicable to Source Code.

Definition in file msdscsi.c .

#include "em_usb.h"
#include " msdscsi.h "
#include " msdbot.h "

Functions

bool MSDSCSI_Init (USBH_Ep_TypeDef *out, USBH_Ep_TypeDef *in)
MSDSCSI module initialization.
bool MSDSCSI_Inquiry ( MSDSCSI_InquiryData_TypeDef *data)
Issue a SCSI Inquiry command.
bool MSDSCSI_Read10 (uint32_t lba, uint16_t sectors, void *data)
Issue a SCSI Read(10) command.
bool MSDSCSI_ReadCapacity ( MSDSCSI_ReadCapacityData_TypeDef *data)
Issue a SCSI Read Capacity command.
bool MSDSCSI_RequestSense ( MSDSCSI_RequestSenseData_TypeDef *data)
Issue a SCSI Request Sense command.
bool MSDSCSI_TestUnitReady (void)
Issue a SCSI Test Unit Ready command.
bool MSDSCSI_Write10 (uint32_t lba, uint16_t sectors, const void *data)
Perform a SCSI Write(10) command.

Function Documentation

bool MSDSCSI_Init ( USBH_Ep_TypeDef * out,
USBH_Ep_TypeDef * in
)

MSDSCSI module initialization.

Parameters
[in] out Pointer to an MSD bulk OUT endpoint structure.
[in] in Pointer to an MSD bulk IN endpoint structure.
Returns
Returns true on success, false otherwise.

Definition at line 157 of file msdscsi.c .

References MSDBOT_Init() , MSDBOT_STATUS_OK , SCSI_INQUIRYDATA_LEN , SCSI_READ10_LEN , SCSI_READCAPACITYDATA_LEN , SCSI_REQUESTSENSEDATA_LEN , and SCSI_WRITE10_LEN .

Referenced by MSDH_Init() .

bool MSDSCSI_Inquiry ( MSDSCSI_InquiryData_TypeDef * data )

Issue a SCSI Inquiry command.

Parameters
[out] data Inquiry response data buffer.
Returns
Returns true on success, false otherwise.

Definition at line 189 of file msdscsi.c .

References MSDBOT_Xfer() , and SCSI_INQUIRYDATA_LEN .

Referenced by MSDH_Init() .

bool MSDSCSI_Read10 ( uint32_t lba,
uint16_t sectors,
void * data
)

Issue a SCSI Read(10) command.

Parameters
[in] lba Sector address (LBA) of first sector to read.
[in] sectors Number of sectors to read.
[out] data Data buffer through which data is returned to caller.
Returns
Returns true on success, false otherwise.

Definition at line 214 of file msdscsi.c .

References MSDSCSI_Read10_TypeDef::Lba , MSDBOT_Xfer() , SL_ALIGN , SL_ATTRIBUTE_ALIGN , and MSDSCSI_Read10_TypeDef::TransferLength .

Referenced by MSDH_ReadSectors() .

bool MSDSCSI_ReadCapacity ( MSDSCSI_ReadCapacityData_TypeDef * data )

Issue a SCSI Read Capacity command.

Parameters
[out] data Read Capacity response data buffer.
Returns
Returns true on success, false otherwise.

Definition at line 242 of file msdscsi.c .

References MSDSCSI_ReadCapacityData_TypeDef::LogicalBlockAddress , MSDSCSI_ReadCapacityData_TypeDef::LogicalBlockLength , MSDBOT_Xfer() , and SCSI_READCAPACITYDATA_LEN .

Referenced by MSDH_GetBlockSize() , MSDH_GetSectorCount() , MSDH_GetSectorSize() , and MSDH_Init() .

bool MSDSCSI_RequestSense ( MSDSCSI_RequestSenseData_TypeDef * data )

Issue a SCSI Request Sense command.

Parameters
[out] data Request Sense response data buffer.
Returns
Returns true on success, false otherwise.

Definition at line 268 of file msdscsi.c .

References MSDBOT_Xfer() , and SCSI_REQUESTSENSEDATA_LEN .

Referenced by MSDH_Init() .

bool MSDSCSI_TestUnitReady ( void )

Issue a SCSI Test Unit Ready command.

Returns
Returns true if device ready, false if device not ready or cmd transfer error.

Definition at line 285 of file msdscsi.c .

References MSDBOT_STATUS_OK , and MSDBOT_Xfer() .

Referenced by MSDH_Init() .

bool MSDSCSI_Write10 ( uint32_t lba,
uint16_t sectors,
const void * data
)

Perform a SCSI Write(10) command.

Parameters
[in] lba Sector address (LBA) of first sector to write.
[in] sectors Number of sectors to write.
[out] data Data buffer containing data to be written.
Returns
Returns true on success, false otherwise.

Definition at line 310 of file msdscsi.c .

References MSDSCSI_Write10_TypeDef::Lba , MSDBOT_Xfer() , SL_ALIGN , SL_ATTRIBUTE_ALIGN , and MSDSCSI_Write10_TypeDef::TransferLength .

Referenced by MSDH_WriteSectors() .