djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
2a51f72ed1
circuitpython/stmhal/usbhost/Class/MSC/Src/usbh_msc_scsi.c
Dave Hylands dd38d90724 Initial checkin with STM HAL 
This compiles and links, but hasn't been tested on a board
yet and even if it was run, it doesn't currently do anything.
2014-03-11 23:55:41 -07:00

459 lines
13 KiB
C
Raw Blame History

/**
******************************************************************************
* @file usbh_msc_scsi.c
* @author MCD Application Team
* @version V3.0.0
* @date 18-February-2014
* @brief This file implements the SCSI commands
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usbh_msc.h"
#include "usbh_msc_scsi.h"
#include "usbh_msc_bot.h"
/** @addtogroup USBH_LIB
* @{
*/
/** @addtogroup USBH_CLASS
* @{
*/
/** @addtogroup USBH_MSC_CLASS
* @{
*/
/** @defgroup USBH_MSC_SCSI
* @brief This file includes the mass storage related functions
* @{
*/
/** @defgroup USBH_MSC_SCSI_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBH_MSC_SCSI_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBH_MSC_SCSI_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBH_MSC_SCSI_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup USBH_MSC_SCSI_Exported_Variables
* @{
*/
/**
* @}
*/
/** @defgroup USBH_MSC_SCSI_Private_Functions
* @{
*/
/**
* @brief USBH_MSC_SCSI_TestUnitReady
* Issue TestUnitReady command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_TestUnitReady (USBH_HandleTypeDef *phost,
uint8_t lun)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_MODE_TEST_UNIT_READY;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_OUT;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_TEST_UNIT_READY;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_ReadCapacity
* Issue Read Capacity command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param capacity: pointer to the capacity structure
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_ReadCapacity (USBH_HandleTypeDef *phost,
uint8_t lun,
SCSI_CapacityTypeDef *capacity)
{
USBH_StatusTypeDef error = USBH_BUSY ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_READ_CAPACITY10;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_READ_CAPACITY10;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = (uint8_t *)MSC_Handle->hbot.data;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
if(error == USBH_OK)
{
/*assign the capacity*/
capacity->block_nbr = MSC_Handle->hbot.pbuf[3] | (MSC_Handle->hbot.pbuf[2] << 8) |\
(MSC_Handle->hbot.pbuf[1] << 16) | (MSC_Handle->hbot.pbuf[0] << 24);
/*assign the page length*/
capacity->block_size = MSC_Handle->hbot.pbuf[7] | (MSC_Handle->hbot.pbuf[6] << 8);
}
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_Inquiry
* Issue Inquiry command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param capacity: pointer to the inquiry structure
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_Inquiry (USBH_HandleTypeDef *phost,
uint8_t lun,
SCSI_StdInquiryDataTypeDef *inquiry)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_INQUIRY;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_INQUIRY;
MSC_Handle->hbot.cbw.field.CB[1] = (lun << 5);
MSC_Handle->hbot.cbw.field.CB[2] = 0;
MSC_Handle->hbot.cbw.field.CB[3] = 0;
MSC_Handle->hbot.cbw.field.CB[4] = 0x24;
MSC_Handle->hbot.cbw.field.CB[5] = 0;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = (uint8_t *)MSC_Handle->hbot.data;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
if(error == USBH_OK)
{
USBH_memset(inquiry, 0, sizeof(SCSI_StdInquiryDataTypeDef));
/*assign Inquiry Data */
inquiry->DeviceType = MSC_Handle->hbot.pbuf[0] & 0x1F;
inquiry->PeripheralQualifier = MSC_Handle->hbot.pbuf[0] >> 5;
inquiry->RemovableMedia = (MSC_Handle->hbot.pbuf[1] & 0x80)== 0x80;
USBH_memcpy (inquiry->vendor_id, &MSC_Handle->hbot.pbuf[8], 8);
USBH_memcpy (inquiry->product_id, &MSC_Handle->hbot.pbuf[16], 16);
USBH_memcpy (inquiry->revision_id, &MSC_Handle->hbot.pbuf[32], 4);
}
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_RequestSense
* Issue RequestSense command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param capacity: pointer to the sense data structure
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_RequestSense (USBH_HandleTypeDef *phost,
uint8_t lun,
SCSI_SenseTypeDef *sense_data)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_REQUEST_SENSE;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_REQUEST_SENSE;
MSC_Handle->hbot.cbw.field.CB[1] = (lun << 5);
MSC_Handle->hbot.cbw.field.CB[2] = 0;
MSC_Handle->hbot.cbw.field.CB[3] = 0;
MSC_Handle->hbot.cbw.field.CB[4] = DATA_LEN_REQUEST_SENSE;
MSC_Handle->hbot.cbw.field.CB[5] = 0;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = (uint8_t *)MSC_Handle->hbot.data;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
if(error == USBH_OK)
{
sense_data->key = MSC_Handle->hbot.pbuf[2] & 0x0F;
sense_data->asc = MSC_Handle->hbot.pbuf[12];
sense_data->ascq = MSC_Handle->hbot.pbuf[13];
}
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_Write
* Issue write10 command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param address: sector address
* @param pbuf: pointer to data
* @param length: number of sector to write
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_Write(USBH_HandleTypeDef *phost,
uint8_t lun,
uint32_t address,
uint8_t *pbuf,
uint32_t length)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = length * 512;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_OUT;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_WRITE10;
/*logical block address*/
MSC_Handle->hbot.cbw.field.CB[2] = (((uint8_t*)&address)[3]);
MSC_Handle->hbot.cbw.field.CB[3] = (((uint8_t*)&address)[2]);
MSC_Handle->hbot.cbw.field.CB[4] = (((uint8_t*)&address)[1]);
MSC_Handle->hbot.cbw.field.CB[5] = (((uint8_t*)&address)[0]);
/*Tranfer length */
MSC_Handle->hbot.cbw.field.CB[7] = (((uint8_t *)&length)[1]) ;
MSC_Handle->hbot.cbw.field.CB[8] = (((uint8_t *)&length)[0]) ;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = pbuf;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_Read
* Issue Read10 command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param address: sector address
* @param pbuf: pointer to data
* @param length: number of sector to read
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_Read(USBH_HandleTypeDef *phost,
uint8_t lun,
uint32_t address,
uint8_t *pbuf,
uint32_t length)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = length * 512;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_READ10;
/*logical block address*/
MSC_Handle->hbot.cbw.field.CB[2] = (((uint8_t*)&address)[3]);
MSC_Handle->hbot.cbw.field.CB[3] = (((uint8_t*)&address)[2]);
MSC_Handle->hbot.cbw.field.CB[4] = (((uint8_t*)&address)[1]);
MSC_Handle->hbot.cbw.field.CB[5] = (((uint8_t*)&address)[0]);
/*Tranfer length */
MSC_Handle->hbot.cbw.field.CB[7] = (((uint8_t *)&length)[1]) ;
MSC_Handle->hbot.cbw.field.CB[8] = (((uint8_t *)&length)[0]) ;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = pbuf;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
break;
default:
break;
}
return error;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
Reference in New Issue View Git Blame Copy Permalink