diff options
Diffstat (limited to 'STM32_bootloader/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c')
| -rw-r--r-- | STM32_bootloader/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c | 716 |
1 files changed, 0 insertions, 716 deletions
diff --git a/STM32_bootloader/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c b/STM32_bootloader/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c deleted file mode 100644 index bdae392..0000000 --- a/STM32_bootloader/Middlewares/ST/STM32_USB_Device_Library/Class/MSC/Src/usbd_msc_scsi.c +++ /dev/null @@ -1,716 +0,0 @@ -/**
- ******************************************************************************
- * @file usbd_msc_scsi.c
- * @author MCD Application Team
- * @brief This file provides all the USBD SCSI layer functions.
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2015 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * This software component is licensed by ST under Ultimate Liberty license
- * SLA0044, the "License"; You may not use this file except in compliance with
- * the License. You may obtain a copy of the License at:
- * www.st.com/SLA0044
- *
- ******************************************************************************
- */
-
-/* BSPDependencies
-- "stm32xxxxx_{eval}{discovery}{nucleo_144}.c"
-- "stm32xxxxx_{eval}{discovery}_io.c"
-- "stm32xxxxx_{eval}{discovery}{adafruit}_sd.c"
-EndBSPDependencies */
-
-/* Includes ------------------------------------------------------------------*/
-#include "usbd_msc_bot.h"
-#include "usbd_msc_scsi.h"
-#include "usbd_msc.h"
-#include "usbd_msc_data.h"
-
-
-
-/** @addtogroup STM32_USB_DEVICE_LIBRARY
- * @{
- */
-
-
-/** @defgroup MSC_SCSI
- * @brief Mass storage SCSI layer module
- * @{
- */
-
-/** @defgroup MSC_SCSI_Private_TypesDefinitions
- * @{
- */
-/**
- * @}
- */
-
-
-/** @defgroup MSC_SCSI_Private_Defines
- * @{
- */
-
-/**
- * @}
- */
-
-
-/** @defgroup MSC_SCSI_Private_Macros
- * @{
- */
-/**
- * @}
- */
-
-
-/** @defgroup MSC_SCSI_Private_Variables
- * @{
- */
-
-/**
- * @}
- */
-
-
-/** @defgroup MSC_SCSI_Private_FunctionPrototypes
- * @{
- */
-static int8_t SCSI_TestUnitReady(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Inquiry(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ReadFormatCapacity(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ReadCapacity10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_RequestSense(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_StartStopUnit(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ModeSense6(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_ModeSense10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Write10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_Verify10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params);
-static int8_t SCSI_CheckAddressRange(USBD_HandleTypeDef *pdev, uint8_t lun,
- uint32_t blk_offset, uint32_t blk_nbr);
-
-static int8_t SCSI_ProcessRead(USBD_HandleTypeDef *pdev, uint8_t lun);
-static int8_t SCSI_ProcessWrite(USBD_HandleTypeDef *pdev, uint8_t lun);
-/**
- * @}
- */
-
-
-/** @defgroup MSC_SCSI_Private_Functions
- * @{
- */
-
-
-/**
-* @brief SCSI_ProcessCmd
-* Process SCSI commands
-* @param pdev: device instance
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-int8_t SCSI_ProcessCmd(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *cmd)
-{
- switch (cmd[0])
- {
- case SCSI_TEST_UNIT_READY:
- SCSI_TestUnitReady(pdev, lun, cmd);
- break;
-
- case SCSI_REQUEST_SENSE:
- SCSI_RequestSense(pdev, lun, cmd);
- break;
- case SCSI_INQUIRY:
- SCSI_Inquiry(pdev, lun, cmd);
- break;
-
- case SCSI_START_STOP_UNIT:
- SCSI_StartStopUnit(pdev, lun, cmd);
- break;
-
- case SCSI_ALLOW_MEDIUM_REMOVAL:
- SCSI_StartStopUnit(pdev, lun, cmd);
- break;
-
- case SCSI_MODE_SENSE6:
- SCSI_ModeSense6(pdev, lun, cmd);
- break;
-
- case SCSI_MODE_SENSE10:
- SCSI_ModeSense10(pdev, lun, cmd);
- break;
-
- case SCSI_READ_FORMAT_CAPACITIES:
- SCSI_ReadFormatCapacity(pdev, lun, cmd);
- break;
-
- case SCSI_READ_CAPACITY10:
- SCSI_ReadCapacity10(pdev, lun, cmd);
- break;
-
- case SCSI_READ10:
- SCSI_Read10(pdev, lun, cmd);
- break;
-
- case SCSI_WRITE10:
- SCSI_Write10(pdev, lun, cmd);
- break;
-
- case SCSI_VERIFY10:
- SCSI_Verify10(pdev, lun, cmd);
- break;
-
- default:
- SCSI_SenseCode(pdev, lun, ILLEGAL_REQUEST, INVALID_CDB);
- return -1;
- }
-
- return 0;
-}
-
-
-/**
-* @brief SCSI_TestUnitReady
-* Process SCSI Test Unit Ready Command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_TestUnitReady(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- /* case 9 : Hi > D0 */
- if (hmsc->cbw.dDataLength != 0U)
- {
- 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);
- hmsc->bot_state = USBD_BOT_NO_DATA;
-
- return -1;
- }
- hmsc->bot_data_length = 0U;
-
- return 0;
-}
-
-/**
-* @brief SCSI_Inquiry
-* Process Inquiry command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_Inquiry(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- uint8_t *pPage;
- uint16_t len;
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- if (params[1] & 0x01U)/*Evpd is set*/
- {
- len = LENGTH_INQUIRY_PAGE00;
- hmsc->bot_data_length = len;
-
- while (len)
- {
- len--;
- hmsc->bot_data[len] = MSC_Page00_Inquiry_Data[len];
- }
- }
- else
- {
- pPage = (uint8_t *)(void *) & ((USBD_StorageTypeDef *)pdev->pUserData)->pInquiry[lun * STANDARD_INQUIRY_DATA_LEN];
- len = (uint16_t)pPage[4] + 5U;
-
- if (params[4] <= len)
- {
- len = params[4];
- }
- hmsc->bot_data_length = len;
-
- while (len)
- {
- len--;
- hmsc->bot_data[len] = pPage[len];
- }
- }
-
- return 0;
-}
-
-/**
-* @brief SCSI_ReadCapacity10
-* Process Read Capacity 10 command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_ReadCapacity10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- if (((USBD_StorageTypeDef *)pdev->pUserData)->GetCapacity(lun, &hmsc->scsi_blk_nbr, &hmsc->scsi_blk_size) != 0)
- {
- SCSI_SenseCode(pdev, lun, NOT_READY, MEDIUM_NOT_PRESENT);
- return -1;
- }
- else
- {
-
- hmsc->bot_data[0] = (uint8_t)((hmsc->scsi_blk_nbr - 1U) >> 24);
- hmsc->bot_data[1] = (uint8_t)((hmsc->scsi_blk_nbr - 1U) >> 16);
- hmsc->bot_data[2] = (uint8_t)((hmsc->scsi_blk_nbr - 1U) >> 8);
- hmsc->bot_data[3] = (uint8_t)(hmsc->scsi_blk_nbr - 1U);
-
- hmsc->bot_data[4] = (uint8_t)(hmsc->scsi_blk_size >> 24);
- hmsc->bot_data[5] = (uint8_t)(hmsc->scsi_blk_size >> 16);
- hmsc->bot_data[6] = (uint8_t)(hmsc->scsi_blk_size >> 8);
- hmsc->bot_data[7] = (uint8_t)(hmsc->scsi_blk_size);
-
- hmsc->bot_data_length = 8U;
- return 0;
- }
-}
-/**
-* @brief SCSI_ReadFormatCapacity
-* Process Read Format Capacity command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_ReadFormatCapacity(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- uint16_t blk_size;
- uint32_t blk_nbr;
- uint16_t i;
-
- for (i = 0U; i < 12U ; i++)
- {
- hmsc->bot_data[i] = 0U;
- }
-
- if (((USBD_StorageTypeDef *)pdev->pUserData)->GetCapacity(lun, &blk_nbr, &blk_size) != 0U)
- {
- SCSI_SenseCode(pdev, lun, NOT_READY, MEDIUM_NOT_PRESENT);
- return -1;
- }
- else
- {
- hmsc->bot_data[3] = 0x08U;
- hmsc->bot_data[4] = (uint8_t)((blk_nbr - 1U) >> 24);
- hmsc->bot_data[5] = (uint8_t)((blk_nbr - 1U) >> 16);
- hmsc->bot_data[6] = (uint8_t)((blk_nbr - 1U) >> 8);
- hmsc->bot_data[7] = (uint8_t)(blk_nbr - 1U);
-
- hmsc->bot_data[8] = 0x02U;
- hmsc->bot_data[9] = (uint8_t)(blk_size >> 16);
- hmsc->bot_data[10] = (uint8_t)(blk_size >> 8);
- hmsc->bot_data[11] = (uint8_t)(blk_size);
-
- hmsc->bot_data_length = 12U;
- return 0;
- }
-}
-/**
-* @brief SCSI_ModeSense6
-* Process Mode Sense6 command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_ModeSense6(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
- uint16_t len = 8U;
- hmsc->bot_data_length = len;
-
- while (len)
- {
- len--;
- hmsc->bot_data[len] = MSC_Mode_Sense6_data[len];
- }
- return 0;
-}
-
-/**
-* @brief SCSI_ModeSense10
-* Process Mode Sense10 command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_ModeSense10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- uint16_t len = 8U;
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- hmsc->bot_data_length = len;
-
- while (len)
- {
- len--;
- hmsc->bot_data[len] = MSC_Mode_Sense10_data[len];
- }
-
- return 0;
-}
-
-/**
-* @brief SCSI_RequestSense
-* Process Request Sense command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-
-static int8_t SCSI_RequestSense(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- uint8_t i;
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- for (i = 0U ; i < REQUEST_SENSE_DATA_LEN; i++)
- {
- hmsc->bot_data[i] = 0U;
- }
-
- hmsc->bot_data[0] = 0x70U;
- hmsc->bot_data[7] = REQUEST_SENSE_DATA_LEN - 6U;
-
- if ((hmsc->scsi_sense_head != hmsc->scsi_sense_tail))
- {
-
- hmsc->bot_data[2] = hmsc->scsi_sense[hmsc->scsi_sense_head].Skey;
- hmsc->bot_data[12] = hmsc->scsi_sense[hmsc->scsi_sense_head].w.b.ASCQ;
- hmsc->bot_data[13] = hmsc->scsi_sense[hmsc->scsi_sense_head].w.b.ASC;
- hmsc->scsi_sense_head++;
-
- if (hmsc->scsi_sense_head == SENSE_LIST_DEEPTH)
- {
- hmsc->scsi_sense_head = 0U;
- }
- }
- hmsc->bot_data_length = REQUEST_SENSE_DATA_LEN;
-
- if (params[4] <= REQUEST_SENSE_DATA_LEN)
- {
- hmsc->bot_data_length = params[4];
- }
- return 0;
-}
-
-/**
-* @brief SCSI_SenseCode
-* Load the last error code in the error list
-* @param lun: Logical unit number
-* @param sKey: Sense Key
-* @param ASC: Additional Sense Key
-* @retval none
-
-*/
-void SCSI_SenseCode(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t sKey, uint8_t ASC)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
-
- hmsc->scsi_sense[hmsc->scsi_sense_tail].Skey = sKey;
- hmsc->scsi_sense[hmsc->scsi_sense_tail].w.ASC = ASC << 8;
- hmsc->scsi_sense_tail++;
- if (hmsc->scsi_sense_tail == SENSE_LIST_DEEPTH)
- {
- hmsc->scsi_sense_tail = 0U;
- }
-}
-/**
-* @brief SCSI_StartStopUnit
-* Process Start Stop Unit command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-static int8_t SCSI_StartStopUnit(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
- hmsc->bot_data_length = 0U;
- return 0;
-}
-
-/**
-* @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 = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
-
- if (hmsc->bot_state == USBD_BOT_IDLE) /* Idle */
- {
- /* case 10 : Ho <> Di */
- if ((hmsc->cbw.bmFlags & 0x80U) != 0x80U)
- {
- 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 = ((uint32_t)params[2] << 24) |
- ((uint32_t)params[3] << 16) |
- ((uint32_t)params[4] << 8) |
- (uint32_t)params[5];
-
- hmsc->scsi_blk_len = ((uint32_t)params[7] << 8) | (uint32_t)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;
-
- /* cases 4,5 : Hi <> Dn */
- if (hmsc->cbw.dDataLength != (hmsc->scsi_blk_len * hmsc->scsi_blk_size))
- {
- 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_Write10
-* Process Write10 command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-
-static int8_t SCSI_Write10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
- uint32_t len;
-
- if (hmsc->bot_state == USBD_BOT_IDLE) /* Idle */
- {
- /* case 8 : Hi <> Do */
- if ((hmsc->cbw.bmFlags & 0x80U) == 0x80U)
- {
- SCSI_SenseCode(pdev, hmsc->cbw.bLUN, ILLEGAL_REQUEST, INVALID_CDB);
- return -1;
- }
-
- /* Check whether Media is ready */
- if (((USBD_StorageTypeDef *)pdev->pUserData)->IsReady(lun) != 0)
- {
- SCSI_SenseCode(pdev, lun, NOT_READY, MEDIUM_NOT_PRESENT);
- return -1;
- }
-
- /* Check If media is write-protected */
- if (((USBD_StorageTypeDef *)pdev->pUserData)->IsWriteProtected(lun) != 0)
- {
- SCSI_SenseCode(pdev, lun, NOT_READY, WRITE_PROTECTED);
- return -1;
- }
-
- hmsc->scsi_blk_addr = ((uint32_t)params[2] << 24) |
- ((uint32_t)params[3] << 16) |
- ((uint32_t)params[4] << 8) |
- (uint32_t)params[5];
-
- hmsc->scsi_blk_len = ((uint32_t)params[7] << 8) |
- (uint32_t)params[8];
-
- /* check if LBA address is in the right range */
- if (SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr,
- hmsc->scsi_blk_len) < 0)
- {
- return -1; /* error */
- }
-
- len = hmsc->scsi_blk_len * hmsc->scsi_blk_size;
-
- /* cases 3,11,13 : Hn,Ho <> D0 */
- if (hmsc->cbw.dDataLength != len)
- {
- SCSI_SenseCode(pdev, hmsc->cbw.bLUN, ILLEGAL_REQUEST, INVALID_CDB);
- return -1;
- }
-
- len = MIN(len, MSC_MEDIA_PACKET);
-
- /* Prepare EP to receive first data packet */
- hmsc->bot_state = USBD_BOT_DATA_OUT;
- USBD_LL_PrepareReceive(pdev, MSC_EPOUT_ADDR, hmsc->bot_data, len);
- }
- else /* Write Process ongoing */
- {
- return SCSI_ProcessWrite(pdev, lun);
- }
- return 0;
-}
-
-
-/**
-* @brief SCSI_Verify10
-* Process Verify10 command
-* @param lun: Logical unit number
-* @param params: Command parameters
-* @retval status
-*/
-
-static int8_t SCSI_Verify10(USBD_HandleTypeDef *pdev, uint8_t lun, uint8_t *params)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
-
- if ((params[1] & 0x02U) == 0x02U)
- {
- SCSI_SenseCode(pdev, lun, ILLEGAL_REQUEST, INVALID_FIELED_IN_COMMAND);
- return -1; /* Error, Verify Mode Not supported*/
- }
-
- if (SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr,
- hmsc->scsi_blk_len) < 0)
- {
- return -1; /* error */
- }
- hmsc->bot_data_length = 0U;
- return 0;
-}
-
-/**
-* @brief SCSI_CheckAddressRange
-* Check address range
-* @param lun: Logical unit number
-* @param blk_offset: first block address
-* @param blk_nbr: number of block to be processed
-* @retval status
-*/
-static int8_t SCSI_CheckAddressRange(USBD_HandleTypeDef *pdev, uint8_t lun,
- uint32_t blk_offset, uint32_t blk_nbr)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
-
- if ((blk_offset + blk_nbr) > hmsc->scsi_blk_nbr)
- {
- SCSI_SenseCode(pdev, lun, ILLEGAL_REQUEST, ADDRESS_OUT_OF_RANGE);
- return -1;
- }
- return 0;
-}
-
-/**
-* @brief SCSI_ProcessRead
-* Handle Read Process
-* @param lun: Logical unit number
-* @retval status
-*/
-static int8_t SCSI_ProcessRead(USBD_HandleTypeDef *pdev, uint8_t lun)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassData;
- uint32_t len = hmsc->scsi_blk_len * hmsc->scsi_blk_size;
-
- len = MIN(len, MSC_MEDIA_PACKET);
-
- if (((USBD_StorageTypeDef *)pdev->pUserData)->Read(lun,
- hmsc->bot_data,
- hmsc->scsi_blk_addr,
- (len / hmsc->scsi_blk_size)) < 0)
- {
- SCSI_SenseCode(pdev, lun, HARDWARE_ERROR, UNRECOVERED_READ_ERROR);
- return -1;
- }
-
- USBD_LL_Transmit(pdev, MSC_EPIN_ADDR, hmsc->bot_data, len);
-
- hmsc->scsi_blk_addr += (len / hmsc->scsi_blk_size);
- hmsc->scsi_blk_len -= (len / hmsc->scsi_blk_size);
-
- /* case 6 : Hi = Di */
- hmsc->csw.dDataResidue -= len;
-
- if (hmsc->scsi_blk_len == 0U)
- {
- hmsc->bot_state = USBD_BOT_LAST_DATA_IN;
- }
- return 0;
-}
-
-/**
-* @brief SCSI_ProcessWrite
-* Handle Write Process
-* @param lun: Logical unit number
-* @retval status
-*/
-
-static int8_t SCSI_ProcessWrite(USBD_HandleTypeDef *pdev, uint8_t lun)
-{
- USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *) pdev->pClassData;
- uint32_t len = hmsc->scsi_blk_len * hmsc->scsi_blk_size;
-
- len = MIN(len, MSC_MEDIA_PACKET);
-
- if (((USBD_StorageTypeDef *)pdev->pUserData)->Write(lun, hmsc->bot_data,
- hmsc->scsi_blk_addr,
- (len / hmsc->scsi_blk_size)) < 0)
- {
- SCSI_SenseCode(pdev, lun, HARDWARE_ERROR, WRITE_FAULT);
-
- return -1;
- }
-
- hmsc->scsi_blk_addr += (len / hmsc->scsi_blk_size);
- hmsc->scsi_blk_len -= (len / hmsc->scsi_blk_size);
-
- /* case 12 : Ho = Do */
- hmsc->csw.dDataResidue -= len;
-
- if (hmsc->scsi_blk_len == 0U)
- {
- MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_PASSED);
- }
- else
- {
- len = MIN((hmsc->scsi_blk_len * hmsc->scsi_blk_size), MSC_MEDIA_PACKET);
- /* Prepare EP to Receive next packet */
- USBD_LL_PrepareReceive(pdev, MSC_EPOUT_ADDR, hmsc->bot_data, len);
- }
-
- return 0;
-}
-/**
- * @}
- */
-
-
-/**
- * @}
- */
-
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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