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usbd_u2fhid.c
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usbd_u2fhid.c
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/**
******************************************************************************
* @file usbd_customhid.c
* @author MCD Application Team
* @version V2.4.0
* @date 28-February-2015
* @brief This file provides the U2F_HID core functions.
*
* @verbatim
*
* ===================================================================
* U2F_HID Class Description
* ===================================================================
* This module manages the U2F_HID class V1.11 following the "Device Class Definition
* for Human Interface Devices (U2F_HID) Version 1.11 Jun 27, 2001".
* This driver implements the following aspects of the specification:
* - The Boot Interface Subclass
* - Usage Page : Generic Desktop
* - Usage : Vendor
* - Collection : Application
*
* @note In HS mode and when the DMA is used, all variables and data structures
* dealing with the DMA during the transaction process should be 32-bit aligned.
*
*
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2015 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 "usbd_u2fhid.h"
#include "usbd_desc.h"
#include "usbd_ctlreq.h"
/** @addtogroup STM32_USB_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_U2F_HID
* @brief usbd core module
* @{
*/
/** @defgroup USBD_U2F_HID_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_U2F_HID_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_U2F_HID_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_U2F_HID_Private_FunctionPrototypes
* @{
*/
static uint8_t USBD_U2F_HID_Init (USBD_HandleTypeDef *pdev,
uint8_t cfgidx);
static uint8_t USBD_U2F_HID_DeInit (USBD_HandleTypeDef *pdev,
uint8_t cfgidx);
static uint8_t USBD_U2F_HID_Setup (USBD_HandleTypeDef *pdev,
USBD_SetupReqTypedef *req);
static uint8_t *USBD_U2F_HID_GetCfgDesc (uint16_t *length);
static uint8_t *USBD_U2F_HID_GetDeviceQualifierDesc (uint16_t *length);
static uint8_t USBD_U2F_HID_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum);
static uint8_t USBD_U2F_HID_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum);
static uint8_t USBD_U2F_HID_EP0_RxReady (USBD_HandleTypeDef *pdev);
/**
* @}
*/
/** @defgroup USBD_U2F_HID_Private_Variables
* @{
*/
USBD_ClassTypeDef USBD_U2F_HID =
{
USBD_U2F_HID_Init,
USBD_U2F_HID_DeInit,
USBD_U2F_HID_Setup,
NULL, /*EP0_TxSent*/
USBD_U2F_HID_EP0_RxReady, /*EP0_RxReady*/ /* STATUS STAGE IN */
USBD_U2F_HID_DataIn, /*DataIn*/
USBD_U2F_HID_DataOut,
NULL, /*SOF */
NULL,
NULL,
USBD_U2F_HID_GetCfgDesc,
USBD_U2F_HID_GetCfgDesc,
USBD_U2F_HID_GetCfgDesc,
USBD_U2F_HID_GetDeviceQualifierDesc,
};
/* USB U2F_HID device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t USBD_U2F_HID_CfgDesc[USB_U2F_HID_CONFIG_DESC_SIZ] __ALIGN_END =
{
0x09, /* bLength: Configuration Descriptor size */
USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */
USB_U2F_HID_CONFIG_DESC_SIZ,
/* wTotalLength: Bytes returned */
0x00,
0x01, /*bNumInterfaces: 1 interface*/
0x01, /*bConfigurationValue: Configuration value*/
0x00, /*iConfiguration: Index of string descriptor describing
the configuration*/
0x80, /*bmAttributes: bus powered */
0x32, /*MaxPower 100 mA: this current is used for detecting Vbus*/
/************** Descriptor of U2F HID interface ****************/
/* 09 */
0x09, /*bLength: Interface Descriptor size*/
USB_DESC_TYPE_INTERFACE,/*bDescriptorType: Interface descriptor type*/
0x00, /*bInterfaceNumber: Number of Interface*/
0x00, /*bAlternateSetting: Alternate setting*/
0x02, /*bNumEndpoints*/
0x03, /*bInterfaceClass: U2F_HID*/
0x00, /*bInterfaceSubClass : 1=BOOT, 0=no boot*/
0x00, /*nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse*/
0, /*iInterface: Index of string descriptor*/
/******************** Descriptor of U2F_HID *************************/
/* 18 */
0x09, /*bLength: U2F_HID Descriptor size*/
U2F_HID_DESCRIPTOR_TYPE, /*bDescriptorType: U2F_HID*/
0x10, /*bU2F_HIDUSTOM_HID: U2F_HID Class Spec release number*/
0x01,
0x00, /*bCountryCode: Hardware target country*/
0x01, /*bNumDescriptors: Number of U2F_HID class descriptors to follow*/
0x22, /*bDescriptorType*/
USBD_U2F_HID_REPORT_DESC_SIZE,/*wItemLength: Total length of Report descriptor*/
0x00,
/******************** Descriptor of Custom HID endpoints ********************/
/* 27 */
0x07, /*bLength: Endpoint Descriptor size*/
USB_DESC_TYPE_ENDPOINT, /*bDescriptorType:*/
U2F_HID_EPIN_ADDR, /*bEndpointAddress: Endpoint Address (IN)*/
0x03, /*bmAttributes: Interrupt endpoint*/
U2F_HID_EPIN_SIZE, /*wMaxPacketSize: 2 Byte max */
0x00,
0x5, /*bInterval: Polling Interval (5 ms)*/
/* 34 */
0x07, /* bLength: Endpoint Descriptor size */
USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: */
U2F_HID_EPOUT_ADDR, /*bEndpointAddress: Endpoint Address (OUT)*/
0x03, /* bmAttributes: Interrupt endpoint */
U2F_HID_EPOUT_SIZE, /* wMaxPacketSize: 2 Bytes max */
0x00,
0x5, /* bInterval: Polling Interval (5 ms) */
/* 41 */
} ;
/* USB U2F_HID device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t USBD_U2F_HID_Desc[USB_U2F_HID_DESC_SIZ] __ALIGN_END =
{
/* 18 */
0x09, /*bLength: U2F_HID Descriptor size*/
U2F_HID_DESCRIPTOR_TYPE, /*bDescriptorType: U2F_HID*/
0x11, /*bU2F_HIDUSTOM_HID: U2F_HID Class Spec release number*/
0x01,
0x00, /*bCountryCode: Hardware target country*/
0x01, /*bNumDescriptors: Number of U2F_HID class descriptors to follow*/
0x22, /*bDescriptorType*/
USBD_U2F_HID_REPORT_DESC_SIZE,/*wItemLength: Total length of Report descriptor*/
0x00,
};
/* USB Standard Device Descriptor */
__ALIGN_BEGIN static uint8_t USBD_U2F_HID_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
{
USB_LEN_DEV_QUALIFIER_DESC,
USB_DESC_TYPE_DEVICE_QUALIFIER,
0x00,
0x02,
0x00,
0x00,
0x00,
0x40,
0x01,
0x00,
};
/**
* @}
*/
/** @defgroup USBD_U2F_HID_Private_Functions
* @{
*/
/**
* @brief USBD_U2F_HID_Init
* Initialize the U2F_HID interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t USBD_U2F_HID_Init (USBD_HandleTypeDef *pdev,
uint8_t cfgidx)
{
uint8_t ret = 0;
USBD_U2F_HID_HandleTypeDef *hhid;
/* Open EP IN */
USBD_LL_OpenEP(pdev,
U2F_HID_EPIN_ADDR,
USBD_EP_TYPE_INTR,
U2F_HID_EPIN_SIZE);
/* Open EP OUT */
USBD_LL_OpenEP(pdev,
U2F_HID_EPOUT_ADDR,
USBD_EP_TYPE_INTR,
U2F_HID_EPOUT_SIZE);
pdev->pClassData = USBD_malloc(sizeof (USBD_U2F_HID_HandleTypeDef));
if(pdev->pClassData == NULL)
{
ret = 1;
}
else
{
hhid = (USBD_U2F_HID_HandleTypeDef*) pdev->pClassData;
hhid->state = U2F_HID_IDLE;
((USBD_U2F_HID_ItfTypeDef *)pdev->pUserData)->Init();
/* Prepare Out endpoint to receive 1st packet */
USBD_LL_PrepareReceive(pdev, U2F_HID_EPOUT_ADDR, hhid->Report_buf,
USBD_U2FHID_OUTREPORT_BUF_SIZE);
}
return ret;
}
/**
* @brief USBD_U2F_HID_Init
* DeInitialize the U2F_HID layer
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t USBD_U2F_HID_DeInit (USBD_HandleTypeDef *pdev,
uint8_t cfgidx)
{
/* Close U2F_HID EP IN */
USBD_LL_CloseEP(pdev,
U2F_HID_EPIN_ADDR);
/* Close U2F_HID EP OUT */
USBD_LL_CloseEP(pdev,
U2F_HID_EPOUT_ADDR);
/* FRee allocated memory */
if(pdev->pClassData != NULL)
{
((USBD_U2F_HID_ItfTypeDef *)pdev->pUserData)->DeInit();
USBD_free(pdev->pClassData);
pdev->pClassData = NULL;
}
return USBD_OK;
}
/**
* @brief USBD_U2F_HID_Setup
* Handle the U2F_HID specific requests
* @param pdev: instance
* @param req: usb requests
* @retval status
*/
static uint8_t USBD_U2F_HID_Setup (USBD_HandleTypeDef *pdev,
USBD_SetupReqTypedef *req)
{
uint16_t len = 0;
uint8_t *pbuf = NULL;
USBD_U2F_HID_HandleTypeDef *hhid = (USBD_U2F_HID_HandleTypeDef*)pdev->pClassData;
switch (req->bmRequest & USB_REQ_TYPE_MASK)
{
case USB_REQ_TYPE_CLASS :
switch (req->bRequest)
{
case U2F_HID_REQ_SET_PROTOCOL:
hhid->Protocol = (uint8_t)(req->wValue);
break;
case U2F_HID_REQ_GET_PROTOCOL:
USBD_CtlSendData (pdev,
(uint8_t *)&hhid->Protocol,
1);
break;
case U2F_HID_REQ_SET_IDLE:
hhid->IdleState = (uint8_t)(req->wValue >> 8);
break;
case U2F_HID_REQ_GET_IDLE:
USBD_CtlSendData (pdev,
(uint8_t *)&hhid->IdleState,
1);
break;
case U2F_HID_REQ_SET_REPORT:
hhid->IsReportAvailable = 1;
USBD_CtlPrepareRx (pdev, hhid->Report_buf, (uint8_t)(req->wLength));
break;
default:
USBD_CtlError (pdev, req);
return USBD_FAIL;
}
break;
case USB_REQ_TYPE_STANDARD:
switch (req->bRequest)
{
case USB_REQ_GET_DESCRIPTOR:
if( req->wValue >> 8 == U2F_HID_REPORT_DESC)
{
len = MIN(USBD_U2F_HID_REPORT_DESC_SIZE , req->wLength);
pbuf = ((USBD_U2F_HID_ItfTypeDef *)pdev->pUserData)->pReport;
}
else if( req->wValue >> 8 == U2F_HID_DESCRIPTOR_TYPE)
{
pbuf = USBD_U2F_HID_Desc;
len = MIN(USB_U2F_HID_DESC_SIZ , req->wLength);
}
USBD_CtlSendData (pdev,
pbuf,
len);
break;
case USB_REQ_GET_INTERFACE :
USBD_CtlSendData (pdev,
(uint8_t *)&hhid->AltSetting,
1);
break;
case USB_REQ_SET_INTERFACE :
hhid->AltSetting = (uint8_t)(req->wValue);
break;
}
}
return USBD_OK;
}
/**
* @brief USBD_U2F_HID_SendReport
* Send U2F_HID Report
* @param pdev: device instance
* @param buff: pointer to report
* @retval status
*/
uint8_t USBD_U2F_HID_SendReport (USBD_HandleTypeDef *pdev,
uint8_t *report,
uint16_t len)
{
USBD_U2F_HID_HandleTypeDef *hhid = (USBD_U2F_HID_HandleTypeDef*)pdev->pClassData;
if (pdev->dev_state == USBD_STATE_CONFIGURED )
{
if(hhid->state == U2F_HID_IDLE)
{
hhid->state = U2F_HID_BUSY;
USBD_LL_Transmit (pdev,
U2F_HID_EPIN_ADDR,
report,
len);
}
}
return USBD_OK;
}
/**
* @brief USBD_U2F_HID_GetCfgDesc
* return configuration descriptor
* @param speed : current device speed
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *USBD_U2F_HID_GetCfgDesc (uint16_t *length)
{
*length = sizeof (USBD_U2F_HID_CfgDesc);
return USBD_U2F_HID_CfgDesc;
}
/**
* @brief USBD_U2F_HID_DataIn
* handle data IN Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_U2F_HID_DataIn (USBD_HandleTypeDef *pdev,
uint8_t epnum)
{
/* Ensure that the FIFO is empty before a new transfer, this condition could
be caused by a new transfer before the end of the previous transfer */
((USBD_U2F_HID_HandleTypeDef *)pdev->pClassData)->state = U2F_HID_IDLE;
return USBD_OK;
}
/**
* @brief USBD_U2F_HID_DataOut
* handle data OUT Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_U2F_HID_DataOut (USBD_HandleTypeDef *pdev,
uint8_t epnum)
{
uint16_t len;
USBD_U2F_HID_HandleTypeDef *hhid = (USBD_U2F_HID_HandleTypeDef*)pdev->pClassData;
len = USBD_GetRxCount(pdev, U2F_HID_EPOUT_ADDR);
((USBD_U2F_HID_ItfTypeDef *)pdev->pUserData)->OutEvent(hhid->Report_buf, len);
USBD_LL_PrepareReceive(pdev, U2F_HID_EPOUT_ADDR , hhid->Report_buf,
USBD_U2FHID_OUTREPORT_BUF_SIZE);
return USBD_OK;
}
/**
* @brief USBD_U2F_HID_EP0_RxReady
* Handles control request data.
* @param pdev: device instance
* @retval status
*/
uint8_t USBD_U2F_HID_EP0_RxReady(USBD_HandleTypeDef *pdev)
{
USBD_U2F_HID_HandleTypeDef *hhid = (USBD_U2F_HID_HandleTypeDef*)pdev->pClassData;
if (hhid->IsReportAvailable == 1)
{
uint16_t len = USBD_GetRxCount(pdev, 0);
((USBD_U2F_HID_ItfTypeDef *)pdev->pUserData)->OutEvent(hhid->Report_buf, len);
hhid->IsReportAvailable = 0;
}
return USBD_OK;
}
/**
* @brief DeviceQualifierDescriptor
* return Device Qualifier descriptor
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *USBD_U2F_HID_GetDeviceQualifierDesc (uint16_t *length)
{
*length = sizeof (USBD_U2F_HID_DeviceQualifierDesc);
return USBD_U2F_HID_DeviceQualifierDesc;
}
/**
* @brief USBD_U2F_HID_RegisterInterface
* @param pdev: device instance
* @param fops: U2FHID Interface callback
* @retval status
*/
uint8_t USBD_U2F_HID_RegisterInterface (USBD_HandleTypeDef *pdev,
USBD_U2F_HID_ItfTypeDef *fops)
{
uint8_t ret = USBD_FAIL;
if(fops != NULL)
{
pdev->pUserData= fops;
ret = USBD_OK;
}
return ret;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/