/**
* @brief SCSI_Read10
* Process Read10 command
* @param lun: Logical unit number
* @param params: Command parameters
* @retval status
*/
static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *params)
{
USBD_MSC_BOT_HandleTypeDef *hmsc = pdev->pClassData;
if(hmsc->bot_state == USBD_BOT_IDLE) /* Idle */
{
/* case 10 : Ho <> Di */
if ((hmsc->cbw.bmFlags & 0x80) != 0x80)
{
SCSI_SenseCode(pdev,
hmsc->cbw.bLUN,
ILLEGAL_REQUEST,
INVALID_CDB);
return -1;
}
if(((USBD_StorageTypeDef *)pdev->pUserData)->IsReady(lun) !=0 )
{
SCSI_SenseCode(pdev,
lun,
NOT_READY,
MEDIUM_NOT_PRESENT);
return -1;
}
hmsc->scsi_blk_addr = (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_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 */
if (hmsc->cbw.dDataLength != hmsc->scsi_blk_len)
{
SCSI_SenseCode(pdev,
hmsc->cbw.bLUN,
ILLEGAL_REQUEST,
INVALID_CDB);
return -1;
}
}
hmsc->bot_data_length = MSC_MEDIA_PACKET;
return SCSI_ProcessRead(pdev, lun);
}
/**
* @brief SCSI_Read10
* Process Read10 command
* @param lun: Logical unit number
* @param params: Command parameters
* @retval status
*/
static int8_t SCSI_Read10(uint8_t lun , uint8_t *params)
{
if(MSC_BOT_State == BOT_IDLE) /* Idle */
{
/* case 10 : Ho <> Di */
if ((MSC_BOT_cbw.bmFlags & 0x80) != 0x80)
{
SCSI_SenseCode(MSC_BOT_cbw.bLUN,
ILLEGAL_REQUEST,
INVALID_CDB);
return -1;
}
if(USBD_STORAGE_fops->IsReady(lun) !=0 )
{
SCSI_SenseCode(lun,
NOT_READY,
MEDIUM_NOT_PRESENT);
return -1;
}
SCSI_blk_addr = (params[2] << 24) | \
(params[3] << 16) | \
(params[4] << 8) | \
params[5];
SCSI_blk_len = (params[7] << 8) | \
params[8];
if( SCSI_CheckAddressRange(lun, SCSI_blk_addr, SCSI_blk_len) < 0)
{
return -1; /* error */
}
MSC_BOT_State = BOT_DATA_IN;
SCSI_blk_addr *= SCSI_blk_size;
SCSI_blk_len *= SCSI_blk_size;
/* cases 4,5 : Hi <> Dn */
if (MSC_BOT_cbw.dDataLength != SCSI_blk_len)
{
SCSI_SenseCode(MSC_BOT_cbw.bLUN,
ILLEGAL_REQUEST,
INVALID_CDB);
return -1;
}
}
MSC_BOT_DataLen = MSC_MEDIA_PACKET;
return SCSI_ProcessRead(lun);
}
