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https://github.com/STMicroelectronics/stm32-mw-usb-device.git
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Release v2.9.0
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slimih
254
Class/CCID/Src/usbd_ccid_if_template.c
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254
Class/CCID/Src/usbd_ccid_if_template.c
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/**
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******************************************************************************
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* @file usbd_ccid_if_template.c
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* @author MCD Application Team
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* @brief This file provides all the functions for USB Interface for CCID
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usbd_ccid.h"
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#include "usbd_ccid_if_template.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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static REP_Command_t REP_command;
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/* Private function prototypes -----------------------------------------------*/
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static uint8_t CCID_Init(USBD_HandleTypeDef *pdev);
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static uint8_t CCID_DeInit(USBD_HandleTypeDef *pdev);
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static uint8_t CCID_ControlReq(uint8_t req, uint8_t *pbuf, uint16_t *length);
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static uint8_t CCID_Response_SendData(USBD_HandleTypeDef *pdev, uint8_t *buf, uint16_t len);
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static uint8_t CCID_Send_Process(uint8_t *Command, uint8_t *Data);
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static uint8_t CCID_Response_Process(void);
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static uint8_t CCID_SetSlotStatus(USBD_HandleTypeDef *pdev);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @}
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*/
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USBD_CCID_ItfTypeDef USBD_CCID_If_fops =
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{
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CCID_Init,
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CCID_DeInit,
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CCID_ControlReq,
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CCID_Response_SendData,
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CCID_Send_Process,
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CCID_SetSlotStatus,
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};
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/**
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* @brief CCID_Init
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* Initialize the CCID USB Layer
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* @param pdev: device instance
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* @retval status value
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*/
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uint8_t CCID_Init(USBD_HandleTypeDef *pdev)
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{
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USBD_CCID_HandleTypeDef *hccid = (USBD_CCID_HandleTypeDef *)pdev->pClassData;
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/* CCID Related Initialization */
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hccid->blkt_state = CCID_STATE_IDLE;
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return (uint8_t)USBD_OK;
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}
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/**
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* @brief CCID_DeInit
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* Uninitialize the CCID Machine
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* @param pdev: device instance
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* @retval status value
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*/
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uint8_t CCID_DeInit(USBD_HandleTypeDef *pdev)
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{
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USBD_CCID_HandleTypeDef *hccid = (USBD_CCID_HandleTypeDef *)pdev->pClassData;
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hccid->blkt_state = CCID_STATE_IDLE;
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return (uint8_t)USBD_OK;
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}
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/**
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* @brief CCID_ControlReq
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* Manage the CCID class requests
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* @param Cmd: Command code
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* @param Buf: Buffer containing command data (request parameters)
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* @param Len: Number of data to be sent (in bytes)
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* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
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*/
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static uint8_t CCID_ControlReq(uint8_t req, uint8_t *pbuf, uint16_t *length)
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{
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USBD_CCID_HandleTypeDef *hccid = (USBD_CCID_HandleTypeDef *)(USBD_Device.pClassData);
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UNUSED(length);
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switch (req)
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{
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case REQUEST_ABORT:
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/* The wValue field contains the slot number (bSlot) in the low byte
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and the sequence number (bSeq) in the high byte.*/
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hccid->slot_nb = ((uint16_t) * pbuf & 0x0fU);
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hccid->seq_nb = (((uint16_t) * pbuf & 0xf0U) >> 8);
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if (CCID_CmdAbort((uint8_t)hccid->slot_nb, (uint8_t)hccid->seq_nb) != 0U)
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{
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/* If error is returned by lower layer :
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Generally Slot# may not have matched */
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return (int8_t)USBD_FAIL;
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}
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break;
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case REQUEST_GET_CLOCK_FREQUENCIES:
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/* User have to fill the pbuf with the GetClockFrequency data buffer */
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break;
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case REQUEST_GET_DATA_RATES:
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/* User have to fill the pbuf with the GetDataRates data buffer */
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break;
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default:
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break;
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}
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UNUSED(pbuf);
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return ((int8_t)USBD_OK);
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}
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/**
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* @brief CCID_Response_SendData
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* Send the data on bulk-in EP
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* @param pdev: device instance
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* @param buf: pointer to data buffer
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* @param len: Data Length
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* @retval status value
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*/
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uint8_t CCID_Response_SendData(USBD_HandleTypeDef *pdev, uint8_t *buf, uint16_t len)
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{
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(void)USBD_LL_Transmit(pdev, CCID_IN_EP, buf, len);
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return (uint8_t)USBD_OK;
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}
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/**
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* @brief CCID_SEND_Process
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* @param Command: pointer to a buffer containing command header
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* @param Data: pointer to a buffer containing data sent from Host
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* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
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*/
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static uint8_t CCID_Send_Process(uint8_t *Command, uint8_t *Data)
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{
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Command_State_t Command_State = Command_NOT_OK;
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/* Initialize ICC APP header */
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uint8_t SC_Command[5] = {0};
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UNUSED(Data);
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UNUSED(Command_State);
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UNUSED(SC_Command);
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/* Start SC Demo ---------------------------------------------------------*/
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switch (Command[1]) /* type of instruction */
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{
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case SC_ENABLE:
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/* Add your code here */
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break;
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case SC_VERIFY:
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/* Add your code here */
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break;
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case SC_READ_BINARY :
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/* Add your code here */
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break;
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case SC_CHANGE :
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/* Add your code here */
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break;
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default:
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break;
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}
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/* check if Command header is OK */
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(void)CCID_Response_Process(); /* Get ICC response */
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return ((uint8_t)USBD_OK);
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}
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/**
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* @brief CCID_Response_Process
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* @param None
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* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
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*/
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static uint8_t CCID_Response_Process(void)
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{
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switch (REP_command)
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{
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case REP_OK:
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/* Add your code here */
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break;
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case REP_NOT_OK :
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/* Add your code here */
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break;
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case REP_NOT_SUPP :
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/* Add your code here */
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break;
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case REP_ENABLED :
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/* Add your code here */
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break;
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case REP_CHANGE :
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/* Add your code here */
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break;
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default:
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break;
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}
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return ((uint8_t)USBD_OK);
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}
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/**
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* @brief CCID_SetSlotStatus
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* Set Slot Status of the Interrupt Transfer
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* @param pdev: device instance
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* @retval status
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*/
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uint8_t CCID_SetSlotStatus(USBD_HandleTypeDef *pdev)
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{
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/* Get the CCID handler pointer */
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USBD_CCID_HandleTypeDef *hccid = (USBD_CCID_HandleTypeDef *)pdev->pClassData;
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if ((hccid->SlotStatus.SlotStatus) == 1U) /* Transfer Complete Status
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of previous Interrupt transfer */
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{
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/* Add your code here */
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}
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else
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{
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/* Add your code here */
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}
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return (uint8_t)USBD_OK;
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}
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