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bluepill firmware that turns it into a USB-I2C multimaster gateway with a simple serial protocol.
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bluepill-i2c-gw/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pcd.c

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/**
******************************************************************************
* @file stm32f1xx_hal_pcd.c
* @author MCD Application Team
* @brief PCD HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the USB Peripheral Controller:
* + Initialization and de-initialization functions
* + IO operation functions
* + Peripheral Control functions
* + Peripheral State functions
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The PCD HAL driver can be used as follows:
(#) Declare a PCD_HandleTypeDef handle structure, for example:
PCD_HandleTypeDef hpcd;
(#) Fill parameters of Init structure in HCD handle
(#) Call HAL_PCD_Init() API to initialize the PCD peripheral (Core, Device core, ...)
(#) Initialize the PCD low level resources through the HAL_PCD_MspInit() API:
(##) Enable the PCD/USB Low Level interface clock using
(+++) __HAL_RCC_USB_CLK_ENABLE(); For USB Device only FS peripheral
(##) Initialize the related GPIO clocks
(##) Configure PCD pin-out
(##) Configure PCD NVIC interrupt
(#)Associate the Upper USB device stack to the HAL PCD Driver:
(##) hpcd.pData = pdev;
(#)Enable PCD transmission and reception:
(##) HAL_PCD_Start();
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal.h"
/** @addtogroup STM32F1xx_HAL_Driver
* @{
*/
/** @defgroup PCD PCD
* @brief PCD HAL module driver
* @{
*/
#ifdef HAL_PCD_MODULE_ENABLED
#if defined (USB) || defined (USB_OTG_FS)
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup PCD_Private_Macros PCD Private Macros
* @{
*/
#define PCD_MIN(a, b) (((a) < (b)) ? (a) : (b))
#define PCD_MAX(a, b) (((a) > (b)) ? (a) : (b))
/**
* @}
*/
/* Private functions prototypes ----------------------------------------------*/
/** @defgroup PCD_Private_Functions PCD Private Functions
* @{
*/
#if defined (USB_OTG_FS)
static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum);
static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
#endif /* defined (USB_OTG_FS) */
#if defined (USB)
static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd);
static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef *hpcd, PCD_EPTypeDef *ep, uint16_t wEPVal);
static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef *hpcd, PCD_EPTypeDef *ep, uint16_t wEPVal);
#endif /* defined (USB) */
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup PCD_Exported_Functions PCD Exported Functions
* @{
*/
/** @defgroup PCD_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and de-initialization functions #####
===============================================================================
[..] This section provides functions allowing to:
@endverbatim
* @{
*/
/**
* @brief Initializes the PCD according to the specified
* parameters in the PCD_InitTypeDef and initialize the associated handle.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
{
#if defined (USB_OTG_FS)
USB_OTG_GlobalTypeDef *USBx;
#endif /* defined (USB_OTG_FS) */
uint8_t i;
/* Check the PCD handle allocation */
if (hpcd == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance));
#if defined (USB_OTG_FS)
USBx = hpcd->Instance;
#endif /* defined (USB_OTG_FS) */
if (hpcd->State == HAL_PCD_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hpcd->Lock = HAL_UNLOCKED;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SOFCallback = HAL_PCD_SOFCallback;
hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
hpcd->ResetCallback = HAL_PCD_ResetCallback;
hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback;
hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback;
hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback;
hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback;
if (hpcd->MspInitCallback == NULL)
{
hpcd->MspInitCallback = HAL_PCD_MspInit;
}
/* Init the low level hardware */
hpcd->MspInitCallback(hpcd);
#else
/* Init the low level hardware : GPIO, CLOCK, NVIC... */
HAL_PCD_MspInit(hpcd);
#endif /* (USE_HAL_PCD_REGISTER_CALLBACKS) */
}
hpcd->State = HAL_PCD_STATE_BUSY;
#if defined (USB_OTG_FS)
/* Disable DMA mode for FS instance */
if ((USBx->CID & (0x1U << 8)) == 0U)
{
hpcd->Init.dma_enable = 0U;
}
#endif /* defined (USB_OTG_FS) */
/* Disable the Interrupts */
__HAL_PCD_DISABLE(hpcd);
/*Init the Core (common init.) */
if (USB_CoreInit(hpcd->Instance, hpcd->Init) != HAL_OK)
{
hpcd->State = HAL_PCD_STATE_ERROR;
return HAL_ERROR;
}
/* Force Device Mode*/
(void)USB_SetCurrentMode(hpcd->Instance, USB_DEVICE_MODE);
/* Init endpoints structures */
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
/* Init ep structure */
hpcd->IN_ep[i].is_in = 1U;
hpcd->IN_ep[i].num = i;
hpcd->IN_ep[i].tx_fifo_num = i;
/* Control until ep is activated */
hpcd->IN_ep[i].type = EP_TYPE_CTRL;
hpcd->IN_ep[i].maxpacket = 0U;
hpcd->IN_ep[i].xfer_buff = 0U;
hpcd->IN_ep[i].xfer_len = 0U;
}
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
hpcd->OUT_ep[i].is_in = 0U;
hpcd->OUT_ep[i].num = i;
/* Control until ep is activated */
hpcd->OUT_ep[i].type = EP_TYPE_CTRL;
hpcd->OUT_ep[i].maxpacket = 0U;
hpcd->OUT_ep[i].xfer_buff = 0U;
hpcd->OUT_ep[i].xfer_len = 0U;
}
/* Init Device */
if (USB_DevInit(hpcd->Instance, hpcd->Init) != HAL_OK)
{
hpcd->State = HAL_PCD_STATE_ERROR;
return HAL_ERROR;
}
hpcd->USB_Address = 0U;
hpcd->State = HAL_PCD_STATE_READY;
(void)USB_DevDisconnect(hpcd->Instance);
return HAL_OK;
}
/**
* @brief DeInitializes the PCD peripheral.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DeInit(PCD_HandleTypeDef *hpcd)
{
/* Check the PCD handle allocation */
if (hpcd == NULL)
{
return HAL_ERROR;
}
hpcd->State = HAL_PCD_STATE_BUSY;
/* Stop Device */
if (USB_StopDevice(hpcd->Instance) != HAL_OK)
{
return HAL_ERROR;
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
if (hpcd->MspDeInitCallback == NULL)
{
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit; /* Legacy weak MspDeInit */
}
/* DeInit the low level hardware */
hpcd->MspDeInitCallback(hpcd);
#else
/* DeInit the low level hardware: CLOCK, NVIC.*/
HAL_PCD_MspDeInit(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
hpcd->State = HAL_PCD_STATE_RESET;
return HAL_OK;
}
/**
* @brief Initializes the PCD MSP.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_MspInit could be implemented in the user file
*/
}
/**
* @brief DeInitializes PCD MSP.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_MspDeInit could be implemented in the user file
*/
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
/**
* @brief Register a User USB PCD Callback
* To be used instead of the weak predefined callback
* @param hpcd USB PCD handle
* @param CallbackID ID of the callback to be registered
* This parameter can be one of the following values:
* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
* @param pCallback pointer to the Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterCallback(PCD_HandleTypeDef *hpcd,
HAL_PCD_CallbackIDTypeDef CallbackID,
pPCD_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
switch (CallbackID)
{
case HAL_PCD_SOF_CB_ID :
hpcd->SOFCallback = pCallback;
break;
case HAL_PCD_SETUPSTAGE_CB_ID :
hpcd->SetupStageCallback = pCallback;
break;
case HAL_PCD_RESET_CB_ID :
hpcd->ResetCallback = pCallback;
break;
case HAL_PCD_SUSPEND_CB_ID :
hpcd->SuspendCallback = pCallback;
break;
case HAL_PCD_RESUME_CB_ID :
hpcd->ResumeCallback = pCallback;
break;
case HAL_PCD_CONNECT_CB_ID :
hpcd->ConnectCallback = pCallback;
break;
case HAL_PCD_DISCONNECT_CB_ID :
hpcd->DisconnectCallback = pCallback;
break;
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = pCallback;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (hpcd->State == HAL_PCD_STATE_RESET)
{
switch (CallbackID)
{
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = pCallback;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister an USB PCD Callback
* USB PCD callabck is redirected to the weak predefined callback
* @param hpcd USB PCD handle
* @param CallbackID ID of the callback to be unregistered
* This parameter can be one of the following values:
* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterCallback(PCD_HandleTypeDef *hpcd, HAL_PCD_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
/* Setup Legacy weak Callbacks */
if (hpcd->State == HAL_PCD_STATE_READY)
{
switch (CallbackID)
{
case HAL_PCD_SOF_CB_ID :
hpcd->SOFCallback = HAL_PCD_SOFCallback;
break;
case HAL_PCD_SETUPSTAGE_CB_ID :
hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
break;
case HAL_PCD_RESET_CB_ID :
hpcd->ResetCallback = HAL_PCD_ResetCallback;
break;
case HAL_PCD_SUSPEND_CB_ID :
hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
break;
case HAL_PCD_RESUME_CB_ID :
hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
break;
case HAL_PCD_CONNECT_CB_ID :
hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
break;
case HAL_PCD_DISCONNECT_CB_ID :
hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
break;
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = HAL_PCD_MspInit;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else if (hpcd->State == HAL_PCD_STATE_RESET)
{
switch (CallbackID)
{
case HAL_PCD_MSPINIT_CB_ID :
hpcd->MspInitCallback = HAL_PCD_MspInit;
break;
case HAL_PCD_MSPDEINIT_CB_ID :
hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
break;
default :
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Data OUT Stage Callback
* To be used instead of the weak HAL_PCD_DataOutStageCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Data OUT Stage Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd,
pPCD_DataOutStageCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataOutStageCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Data OUT Stage Callback
* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataOutStageCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback; /* Legacy weak DataOutStageCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Data IN Stage Callback
* To be used instead of the weak HAL_PCD_DataInStageCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Data IN Stage Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterDataInStageCallback(PCD_HandleTypeDef *hpcd,
pPCD_DataInStageCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataInStageCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Data IN Stage Callback
* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataInStageCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterDataInStageCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback; /* Legacy weak DataInStageCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Iso OUT incomplete Callback
* To be used instead of the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Iso OUT incomplete Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd,
pPCD_IsoOutIncpltCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOOUTIncompleteCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Iso OUT incomplete Callback
* USB PCD Iso OUT incomplete Callback is redirected
* to the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback; /* Legacy weak ISOOUTIncompleteCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Register USB PCD Iso IN incomplete Callback
* To be used instead of the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @param pCallback pointer to the USB PCD Iso IN incomplete Callback function
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_RegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd,
pPCD_IsoInIncpltCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if (pCallback == NULL)
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOINIncompleteCallback = pCallback;
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
/**
* @brief Unregister the USB PCD Iso IN incomplete Callback
* USB PCD Iso IN incomplete Callback is redirected
* to the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_UnRegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process locked */
__HAL_LOCK(hpcd);
if (hpcd->State == HAL_PCD_STATE_READY)
{
hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback; /* Legacy weak ISOINIncompleteCallback */
}
else
{
/* Update the error code */
hpcd->ErrorCode |= HAL_PCD_ERROR_INVALID_CALLBACK;
/* Return error status */
status = HAL_ERROR;
}
/* Release Lock */
__HAL_UNLOCK(hpcd);
return status;
}
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group2 Input and Output operation functions
* @brief Data transfers functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to manage the PCD data
transfers.
@endverbatim
* @{
*/
/**
* @brief Start the USB device
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd)
{
__HAL_LOCK(hpcd);
__HAL_PCD_ENABLE(hpcd);
#if defined (USB)
HAL_PCDEx_SetConnectionState(hpcd, 1U);
#endif /* defined (USB) */
(void)USB_DevConnect(hpcd->Instance);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Stop the USB device.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd)
{
__HAL_LOCK(hpcd);
__HAL_PCD_DISABLE(hpcd);
#if defined (USB)
HAL_PCDEx_SetConnectionState(hpcd, 0U);
#endif /* defined (USB) */
(void)USB_DevDisconnect(hpcd->Instance);
#if defined (USB_OTG_FS)
(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
#endif /* defined (USB_OTG_FS) */
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
#if defined (USB_OTG_FS)
/**
* @brief Handles PCD interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
USB_OTG_EPTypeDef *ep;
uint32_t i;
uint32_t ep_intr;
uint32_t epint;
uint32_t epnum;
uint32_t fifoemptymsk;
uint32_t temp;
/* ensure that we are in device mode */
if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
{
/* avoid spurious interrupt */
if (__HAL_PCD_IS_INVALID_INTERRUPT(hpcd))
{
return;
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
{
/* incorrect mode, acknowledge the interrupt */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
}
/* Handle RxQLevel Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL))
{
USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
temp = USBx->GRXSTSP;
ep = &hpcd->OUT_ep[temp & USB_OTG_GRXSTSP_EPNUM];
if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT)
{
if ((temp & USB_OTG_GRXSTSP_BCNT) != 0U)
{
(void)USB_ReadPacket(USBx, ep->xfer_buff,
(uint16_t)((temp & USB_OTG_GRXSTSP_BCNT) >> 4));
ep->xfer_buff += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
}
}
else if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT)
{
(void)USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8U);
ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
}
else
{
/* ... */
}
USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
{
epnum = 0U;
/* Read in the device interrupt bits */
ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
while (ep_intr != 0U)
{
if ((ep_intr & 0x1U) != 0U)
{
epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, (uint8_t)epnum);
if ((epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);
(void)PCD_EP_OutXfrComplete_int(hpcd, epnum);
}
if ((epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
/* Class B setup phase done for previous decoded setup */
(void)PCD_EP_OutSetupPacket_int(hpcd, epnum);
}
if ((epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
}
/* Clear Status Phase Received interrupt */
if ((epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
}
/* Clear OUT NAK interrupt */
if ((epint & USB_OTG_DOEPINT_NAK) == USB_OTG_DOEPINT_NAK)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_NAK);
}
}
epnum++;
ep_intr >>= 1U;
}
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
{
/* Read in the device interrupt bits */
ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
epnum = 0U;
while (ep_intr != 0U)
{
if ((ep_intr & 0x1U) != 0U) /* In ITR */
{
epint = USB_ReadDevInEPInterrupt(hpcd->Instance, (uint8_t)epnum);
if ((epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
{
fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataInStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
if ((epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
}
if ((epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
}
if ((epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
}
if ((epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
{
CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
}
if ((epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
{
(void)PCD_WriteEmptyTxFifo(hpcd, epnum);
}
}
epnum++;
ep_intr >>= 1U;
}
}
/* Handle Resume Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
{
/* Clear the Remote Wake-up Signaling */
USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResumeCallback(hpcd);
#else
HAL_PCD_ResumeCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
}
/* Handle Suspend Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
{
if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SuspendCallback(hpcd);
#else
HAL_PCD_SuspendCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
}
/* Handle Reset Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST))
{
USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
{
USBx_INEP(i)->DIEPINT = 0xFB7FU;
USBx_INEP(i)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
USBx_INEP(i)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK;
USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
USBx_OUTEP(i)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
USBx_OUTEP(i)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK;
}
USBx_DEVICE->DAINTMSK |= 0x10001U;
if (hpcd->Init.use_dedicated_ep1 != 0U)
{
USBx_DEVICE->DOUTEP1MSK |= USB_OTG_DOEPMSK_STUPM |
USB_OTG_DOEPMSK_XFRCM |
USB_OTG_DOEPMSK_EPDM;
USBx_DEVICE->DINEP1MSK |= USB_OTG_DIEPMSK_TOM |
USB_OTG_DIEPMSK_XFRCM |
USB_OTG_DIEPMSK_EPDM;
}
else
{
USBx_DEVICE->DOEPMSK |= USB_OTG_DOEPMSK_STUPM |
USB_OTG_DOEPMSK_XFRCM |
USB_OTG_DOEPMSK_EPDM |
USB_OTG_DOEPMSK_OTEPSPRM |
USB_OTG_DOEPMSK_NAKM;
USBx_DEVICE->DIEPMSK |= USB_OTG_DIEPMSK_TOM |
USB_OTG_DIEPMSK_XFRCM |
USB_OTG_DIEPMSK_EPDM;
}
/* Set Default Address to 0 */
USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD;
/* setup EP0 to receive SETUP packets */
(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t *)hpcd->Setup);
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST);
}
/* Handle Enumeration done Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE))
{
(void)USB_ActivateSetup(hpcd->Instance);
hpcd->Init.speed = USB_GetDevSpeed(hpcd->Instance);
/* Set USB Turnaround time */
(void)USB_SetTurnaroundTime(hpcd->Instance,
HAL_RCC_GetHCLKFreq(),
(uint8_t)hpcd->Init.speed);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResetCallback(hpcd);
#else
HAL_PCD_ResetCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE);
}
/* Handle SOF Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF))
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SOFCallback(hpcd);
#else
HAL_PCD_SOFCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF);
}
/* Handle Incomplete ISO IN Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR))
{
/* Keep application checking the corresponding Iso IN endpoint
causing the incomplete Interrupt */
epnum = 0U;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR);
}
/* Handle Incomplete ISO OUT Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
{
/* Keep application checking the corresponding Iso OUT endpoint
causing the incomplete Interrupt */
epnum = 0U;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
}
/* Handle Connection event Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT))
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ConnectCallback(hpcd);
#else
HAL_PCD_ConnectCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT);
}
/* Handle Disconnection event Interrupt */
if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT))
{
temp = hpcd->Instance->GOTGINT;
if ((temp & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET)
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DisconnectCallback(hpcd);
#else
HAL_PCD_DisconnectCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
hpcd->Instance->GOTGINT |= temp;
}
}
}
/**
* @brief Handles PCD Wakeup interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
void HAL_PCD_WKUP_IRQHandler(PCD_HandleTypeDef *hpcd)
{
/* Clear EXTI pending Bit */
__HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
}
#endif /* defined (USB_OTG_FS) */
#if defined (USB)
/**
* @brief This function handles PCD interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
{
uint16_t store_ep[8];
uint8_t i;
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_CTR))
{
/* servicing of the endpoint correct transfer interrupt */
/* clear of the CTR flag into the sub */
(void)PCD_EP_ISR_Handler(hpcd);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_RESET))
{
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResetCallback(hpcd);
#else
HAL_PCD_ResetCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
(void)HAL_PCD_SetAddress(hpcd, 0U);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_PMAOVR))
{
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_PMAOVR);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ERR))
{
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ERR);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_WKUP))
{
hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_LP_MODE);
hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_FSUSP);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->ResumeCallback(hpcd);
#else
HAL_PCD_ResumeCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_WKUP);
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SUSP))
{
/* WA: To Clear Wakeup flag if raised with suspend signal */
/* Store Endpoint register */
for (i = 0U; i < 8U; i++)
{
store_ep[i] = PCD_GET_ENDPOINT(hpcd->Instance, i);
}
/* FORCE RESET */
hpcd->Instance->CNTR |= (uint16_t)(USB_CNTR_FRES);
/* CLEAR RESET */
hpcd->Instance->CNTR &= (uint16_t)(~USB_CNTR_FRES);
/* wait for reset flag in ISTR */
while ((hpcd->Instance->ISTR & USB_ISTR_RESET) == 0U)
{
}
/* Clear Reset Flag */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET);
/* Restore Registre */
for (i = 0U; i < 8U; i++)
{
PCD_SET_ENDPOINT(hpcd->Instance, i, store_ep[i]);
}
/* Force low-power mode in the macrocell */
hpcd->Instance->CNTR |= (uint16_t)USB_CNTR_FSUSP;
/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SUSP);
hpcd->Instance->CNTR |= (uint16_t)USB_CNTR_LP_MODE;
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SuspendCallback(hpcd);
#else
HAL_PCD_SuspendCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SOF))
{
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SOF);
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SOFCallback(hpcd);
#else
HAL_PCD_SOFCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ESOF))
{
/* clear ESOF flag in ISTR */
__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ESOF);
}
}
/**
* @brief Handles PCD Wakeup interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
void HAL_PCD_WKUP_IRQHandler(PCD_HandleTypeDef *hpcd)
{
/* Clear EXTI pending Bit */
__HAL_USB_WAKEUP_EXTI_CLEAR_FLAG();
}
#endif /* defined (USB) */
/**
* @brief Data OUT stage callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DataOutStageCallback could be implemented in the user file
*/
}
/**
* @brief Data IN stage callback
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DataInStageCallback could be implemented in the user file
*/
}
/**
* @brief Setup stage callback
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SetupStageCallback could be implemented in the user file
*/
}
/**
* @brief USB Start Of Frame callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SOFCallback could be implemented in the user file
*/
}
/**
* @brief USB Reset callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ResetCallback could be implemented in the user file
*/
}
/**
* @brief Suspend event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_SuspendCallback could be implemented in the user file
*/
}
/**
* @brief Resume event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ResumeCallback could be implemented in the user file
*/
}
/**
* @brief Incomplete ISO OUT callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ISOOUTIncompleteCallback could be implemented in the user file
*/
}
/**
* @brief Incomplete ISO IN callback.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval None
*/
__weak void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(epnum);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ISOINIncompleteCallback could be implemented in the user file
*/
}
/**
* @brief Connection event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_ConnectCallback could be implemented in the user file
*/
}
/**
* @brief Disconnection event callback.
* @param hpcd PCD handle
* @retval None
*/
__weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCD_DisconnectCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group3 Peripheral Control functions
* @brief management functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to control the PCD data
transfers.
@endverbatim
* @{
*/
/**
* @brief Connect the USB device
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd)
{
__HAL_LOCK(hpcd);
#if defined (USB)
HAL_PCDEx_SetConnectionState(hpcd, 1U);
#endif /* defined (USB) */
(void)USB_DevConnect(hpcd->Instance);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Disconnect the USB device.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd)
{
__HAL_LOCK(hpcd);
#if defined (USB)
HAL_PCDEx_SetConnectionState(hpcd, 0U);
#endif /* defined (USB) */
(void)USB_DevDisconnect(hpcd->Instance);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Set the USB Device address.
* @param hpcd PCD handle
* @param address new device address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address)
{
__HAL_LOCK(hpcd);
hpcd->USB_Address = address;
(void)USB_SetDevAddress(hpcd->Instance, address);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Open and configure an endpoint.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param ep_mps endpoint max packet size
* @param ep_type endpoint type
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
uint16_t ep_mps, uint8_t ep_type)
{
HAL_StatusTypeDef ret = HAL_OK;
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80U) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->num = ep_addr & EP_ADDR_MSK;
ep->maxpacket = ep_mps;
ep->type = ep_type;
if (ep->is_in != 0U)
{
/* Assign a Tx FIFO */
ep->tx_fifo_num = ep->num;
}
/* Set initial data PID. */
if (ep_type == EP_TYPE_BULK)
{
ep->data_pid_start = 0U;
}
__HAL_LOCK(hpcd);
(void)USB_ActivateEndpoint(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return ret;
}
/**
* @brief Deactivate an endpoint.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80U) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_DeactivateEndpoint(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Receive an amount of data.
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param pBuf pointer to the reception buffer
* @param len amount of data to be received
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
{
PCD_EPTypeDef *ep;
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
/*setup and start the Xfer */
ep->xfer_buff = pBuf;
ep->xfer_len = len;
ep->xfer_count = 0U;
ep->is_in = 0U;
ep->num = ep_addr & EP_ADDR_MSK;
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0StartXfer(hpcd->Instance, ep);
}
else
{
(void)USB_EPStartXfer(hpcd->Instance, ep);
}
return HAL_OK;
}
/**
* @brief Get Received Data Size
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval Data Size
*/
uint32_t HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
return hpcd->OUT_ep[ep_addr & EP_ADDR_MSK].xfer_count;
}
/**
* @brief Send an amount of data
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @param pBuf pointer to the transmission buffer
* @param len amount of data to be sent
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
{
PCD_EPTypeDef *ep;
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
/*setup and start the Xfer */
ep->xfer_buff = pBuf;
ep->xfer_len = len;
#if defined (USB)
ep->xfer_fill_db = 1U;
ep->xfer_len_db = len;
#endif /* defined (USB) */
ep->xfer_count = 0U;
ep->is_in = 1U;
ep->num = ep_addr & EP_ADDR_MSK;
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0StartXfer(hpcd->Instance, ep);
}
else
{
(void)USB_EPStartXfer(hpcd->Instance, ep);
}
return HAL_OK;
}
/**
* @brief Set a STALL condition over an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if (((uint32_t)ep_addr & EP_ADDR_MSK) > hpcd->Init.dev_endpoints)
{
return HAL_ERROR;
}
if ((0x80U & ep_addr) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr];
ep->is_in = 0U;
}
ep->is_stall = 1U;
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_EPSetStall(hpcd->Instance, ep);
if ((ep_addr & EP_ADDR_MSK) == 0U)
{
(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t *)hpcd->Setup);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Clear a STALL condition over in an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if (((uint32_t)ep_addr & 0x0FU) > hpcd->Init.dev_endpoints)
{
return HAL_ERROR;
}
if ((0x80U & ep_addr) == 0x80U)
{
ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 1U;
}
else
{
ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
ep->is_in = 0U;
}
ep->is_stall = 0U;
ep->num = ep_addr & EP_ADDR_MSK;
__HAL_LOCK(hpcd);
(void)USB_EPClearStall(hpcd->Instance, ep);
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Flush an endpoint
* @param hpcd PCD handle
* @param ep_addr endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
{
__HAL_LOCK(hpcd);
if ((ep_addr & 0x80U) == 0x80U)
{
(void)USB_FlushTxFifo(hpcd->Instance, (uint32_t)ep_addr & EP_ADDR_MSK);
}
else
{
(void)USB_FlushRxFifo(hpcd->Instance);
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Activate remote wakeup signalling
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
{
return (USB_ActivateRemoteWakeup(hpcd->Instance));
}
/**
* @brief De-activate remote wakeup signalling.
* @param hpcd PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
{
return (USB_DeActivateRemoteWakeup(hpcd->Instance));
}
/**
* @}
*/
/** @defgroup PCD_Exported_Functions_Group4 Peripheral State functions
* @brief Peripheral State functions
*
@verbatim
===============================================================================
##### Peripheral State functions #####
===============================================================================
[..]
This subsection permits to get in run-time the status of the peripheral
and the data flow.
@endverbatim
* @{
*/
/**
* @brief Return the PCD handle state.
* @param hpcd PCD handle
* @retval HAL state
*/
PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
{
return hpcd->State;
}
/**
* @}
*/
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @addtogroup PCD_Private_Functions
* @{
*/
#if defined (USB_OTG_FS)
/**
* @brief Check FIFO for the next packet to be loaded.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
USB_OTG_EPTypeDef *ep;
uint32_t len;
uint32_t len32b;
uint32_t fifoemptymsk;
ep = &hpcd->IN_ep[epnum];
if (ep->xfer_count > ep->xfer_len)
{
return HAL_ERROR;
}
len = ep->xfer_len - ep->xfer_count;
if (len > ep->maxpacket)
{
len = ep->maxpacket;
}
len32b = (len + 3U) / 4U;
while (((USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) >= len32b) &&
(ep->xfer_count < ep->xfer_len) && (ep->xfer_len != 0U))
{
/* Write the FIFO */
len = ep->xfer_len - ep->xfer_count;
if (len > ep->maxpacket)
{
len = ep->maxpacket;
}
len32b = (len + 3U) / 4U;
(void)USB_WritePacket(USBx, ep->xfer_buff, (uint8_t)epnum, (uint16_t)len);
ep->xfer_buff += len;
ep->xfer_count += len;
}
if (ep->xfer_len <= ep->xfer_count)
{
fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
}
return HAL_OK;
}
/**
* @brief process EP OUT transfer complete interrupt.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U);
uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
if (gSNPSiD == USB_OTG_CORE_ID_310A)
{
/* StupPktRcvd = 1 this is a setup packet */
if ((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
else
{
if ((DoepintReg & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
}
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
}
else
{
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
#else
HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
return HAL_OK;
}
/**
* @brief process EP OUT setup packet received interrupt.
* @param hpcd PCD handle
* @param epnum endpoint number
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
uint32_t USBx_BASE = (uint32_t)USBx;
uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U);
uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
if ((gSNPSiD > USB_OTG_CORE_ID_300A) &&
((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX))
{
CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
}
/* Inform the upper layer that a setup packet is available */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SetupStageCallback(hpcd);
#else
HAL_PCD_SetupStageCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
return HAL_OK;
}
#endif /* defined (USB_OTG_FS) */
#if defined (USB)
/**
* @brief This function handles PCD Endpoint interrupt request.
* @param hpcd PCD handle
* @retval HAL status
*/
static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
{
PCD_EPTypeDef *ep;
uint16_t count, wIstr, wEPVal, TxByteNbre;
uint8_t epindex;
/* stay in loop while pending interrupts */
while ((hpcd->Instance->ISTR & USB_ISTR_CTR) != 0U)
{
wIstr = hpcd->Instance->ISTR;
/* extract highest priority endpoint number */
epindex = (uint8_t)(wIstr & USB_ISTR_EP_ID);
if (epindex == 0U)
{
/* Decode and service control endpoint interrupt */
/* DIR bit = origin of the interrupt */
if ((wIstr & USB_ISTR_DIR) == 0U)
{
/* DIR = 0 */
/* DIR = 0 => IN int */
/* DIR = 0 implies that (EP_CTR_TX = 1) always */
PCD_CLEAR_TX_EP_CTR(hpcd->Instance, PCD_ENDP0);
ep = &hpcd->IN_ep[0];
ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
ep->xfer_buff += ep->xfer_count;
/* TX COMPLETE */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, 0U);
#else
HAL_PCD_DataInStageCallback(hpcd, 0U);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
if ((hpcd->USB_Address > 0U) && (ep->xfer_len == 0U))
{
hpcd->Instance->DADDR = ((uint16_t)hpcd->USB_Address | USB_DADDR_EF);
hpcd->USB_Address = 0U;
}
}
else
{
/* DIR = 1 */
/* DIR = 1 & CTR_RX => SETUP or OUT int */
/* DIR = 1 & (CTR_TX | CTR_RX) => 2 int pending */
ep = &hpcd->OUT_ep[0];
wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0);
if ((wEPVal & USB_EP_SETUP) != 0U)
{
/* Get SETUP Packet */
ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
USB_ReadPMA(hpcd->Instance, (uint8_t *)hpcd->Setup,
ep->pmaadress, (uint16_t)ep->xfer_count);
/* SETUP bit kept frozen while CTR_RX = 1 */
PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
/* Process SETUP Packet*/
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->SetupStageCallback(hpcd);
#else
HAL_PCD_SetupStageCallback(hpcd);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
else if ((wEPVal & USB_EP_CTR_RX) != 0U)
{
PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
/* Get Control Data OUT Packet */
ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
if ((ep->xfer_count != 0U) && (ep->xfer_buff != 0U))
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff,
ep->pmaadress, (uint16_t)ep->xfer_count);
ep->xfer_buff += ep->xfer_count;
/* Process Control Data OUT Packet */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, 0U);
#else
HAL_PCD_DataOutStageCallback(hpcd, 0U);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
if ((PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0) & USB_EP_SETUP) == 0U)
{
PCD_SET_EP_RX_CNT(hpcd->Instance, PCD_ENDP0, ep->maxpacket);
PCD_SET_EP_RX_STATUS(hpcd->Instance, PCD_ENDP0, USB_EP_RX_VALID);
}
}
}
}
else
{
/* Decode and service non control endpoints interrupt */
/* process related endpoint register */
wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, epindex);
if ((wEPVal & USB_EP_CTR_RX) != 0U)
{
/* clear int flag */
PCD_CLEAR_RX_EP_CTR(hpcd->Instance, epindex);
ep = &hpcd->OUT_ep[epindex];
/* OUT Single Buffering */
if (ep->doublebuffer == 0U)
{
count = (uint16_t)PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
if (count != 0U)
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, count);
}
}
else
{
/* manage double buffer bulk out */
if (ep->type == EP_TYPE_BULK)
{
count = HAL_PCD_EP_DB_Receive(hpcd, ep, wEPVal);
}
else /* manage double buffer iso out */
{
/* free EP OUT Buffer */
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_RX) != 0U)
{
/* read from endpoint BUF0Addr buffer */
count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
if (count != 0U)
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
}
}
else
{
/* read from endpoint BUF1Addr buffer */
count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
if (count != 0U)
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
}
}
}
}
/* multi-packet on the NON control OUT endpoint */
ep->xfer_count += count;
ep->xfer_buff += count;
if ((ep->xfer_len == 0U) || (count < ep->maxpacket))
{
/* RX COMPLETE */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataOutStageCallback(hpcd, ep->num);
#else
HAL_PCD_DataOutStageCallback(hpcd, ep->num);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
else
{
(void) USB_EPStartXfer(hpcd->Instance, ep);
}
}
if ((wEPVal & USB_EP_CTR_TX) != 0U)
{
ep = &hpcd->IN_ep[epindex];
/* clear int flag */
PCD_CLEAR_TX_EP_CTR(hpcd->Instance, epindex);
/* Manage all non bulk/isoc transaction Bulk Single Buffer Transaction */
if ((ep->type == EP_TYPE_INTR) || (ep->type == EP_TYPE_CTRL) ||
((ep->type == EP_TYPE_BULK) && ((wEPVal & USB_EP_KIND) == 0U)))
{
/* multi-packet on the NON control IN endpoint */
TxByteNbre = (uint16_t)PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
if (ep->xfer_len > TxByteNbre)
{
ep->xfer_len -= TxByteNbre;
}
else
{
ep->xfer_len = 0U;
}
/* Zero Length Packet? */
if (ep->xfer_len == 0U)
{
/* TX COMPLETE */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, ep->num);
#else
HAL_PCD_DataInStageCallback(hpcd, ep->num);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
}
else
{
/* Transfer is not yet Done */
ep->xfer_buff += TxByteNbre;
ep->xfer_count += TxByteNbre;
(void)USB_EPStartXfer(hpcd->Instance, ep);
}
}
/* Double Buffer Iso/bulk IN (bulk transfer Len > Ep_Mps) */
else
{
(void)HAL_PCD_EP_DB_Transmit(hpcd, ep, wEPVal);
}
}
}
}
return HAL_OK;
}
/**
* @brief Manage double buffer bulk out transaction from ISR
* @param hpcd PCD handle
* @param ep current endpoint handle
* @param wEPVal Last snapshot of EPRx register value taken in ISR
* @retval HAL status
*/
static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef *hpcd,
PCD_EPTypeDef *ep, uint16_t wEPVal)
{
uint16_t count;
/* Manage Buffer0 OUT */
if ((wEPVal & USB_EP_DTOG_RX) != 0U)
{
/* Get count of received Data on buffer0 */
count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
if (ep->xfer_len >= count)
{
ep->xfer_len -= count;
}
else
{
ep->xfer_len = 0U;
}
if (ep->xfer_len == 0U)
{
/* set NAK to OUT endpoint since double buffer is enabled */
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
}
/* Check if Buffer1 is in blocked sate which requires to toggle */
if ((wEPVal & USB_EP_DTOG_TX) != 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
}
if (count != 0U)
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
}
}
/* Manage Buffer 1 DTOG_RX=0 */
else
{
/* Get count of received data */
count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
if (ep->xfer_len >= count)
{
ep->xfer_len -= count;
}
else
{
ep->xfer_len = 0U;
}
if (ep->xfer_len == 0U)
{
/* set NAK on the current endpoint */
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
}
/*Need to FreeUser Buffer*/
if ((wEPVal & USB_EP_DTOG_TX) == 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
}
if (count != 0U)
{
USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
}
}
return count;
}
/**
* @brief Manage double buffer bulk IN transaction from ISR
* @param hpcd PCD handle
* @param ep current endpoint handle
* @param wEPVal Last snapshot of EPRx register value taken in ISR
* @retval HAL status
*/
static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef *hpcd,
PCD_EPTypeDef *ep, uint16_t wEPVal)
{
uint32_t len;
uint16_t TxByteNbre;
/* Data Buffer0 ACK received */
if ((wEPVal & USB_EP_DTOG_TX) != 0U)
{
/* multi-packet on the NON control IN endpoint */
TxByteNbre = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
if (ep->xfer_len > TxByteNbre)
{
ep->xfer_len -= TxByteNbre;
}
else
{
ep->xfer_len = 0U;
}
/* Transfer is completed */
if (ep->xfer_len == 0U)
{
PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
/* TX COMPLETE */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, ep->num);
#else
HAL_PCD_DataInStageCallback(hpcd, ep->num);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
if ((wEPVal & USB_EP_DTOG_RX) != 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
}
}
else /* Transfer is not yet Done */
{
/* need to Free USB Buff */
if ((wEPVal & USB_EP_DTOG_RX) != 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
}
/* Still there is data to Fill in the next Buffer */
if (ep->xfer_fill_db == 1U)
{
ep->xfer_buff += TxByteNbre;
ep->xfer_count += TxByteNbre;
/* Calculate the len of the new buffer to fill */
if (ep->xfer_len_db >= ep->maxpacket)
{
len = ep->maxpacket;
ep->xfer_len_db -= len;
}
else if (ep->xfer_len_db == 0U)
{
len = TxByteNbre;
ep->xfer_fill_db = 0U;
}
else
{
ep->xfer_fill_db = 0U;
len = ep->xfer_len_db;
ep->xfer_len_db = 0U;
}
/* Write remaining Data to Buffer */
/* Set the Double buffer counter for pma buffer1 */
PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, len);
/* Copy user buffer to USB PMA */
USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, (uint16_t)len);
}
}
}
else /* Data Buffer1 ACK received */
{
/* multi-packet on the NON control IN endpoint */
TxByteNbre = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
if (ep->xfer_len >= TxByteNbre)
{
ep->xfer_len -= TxByteNbre;
}
else
{
ep->xfer_len = 0U;
}
/* Transfer is completed */
if (ep->xfer_len == 0U)
{
PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
/* TX COMPLETE */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
hpcd->DataInStageCallback(hpcd, ep->num);
#else
HAL_PCD_DataInStageCallback(hpcd, ep->num);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
/* need to Free USB Buff */
if ((wEPVal & USB_EP_DTOG_RX) == 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
}
}
else /* Transfer is not yet Done */
{
/* need to Free USB Buff */
if ((wEPVal & USB_EP_DTOG_RX) == 0U)
{
PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
}
/* Still there is data to Fill in the next Buffer */
if (ep->xfer_fill_db == 1U)
{
ep->xfer_buff += TxByteNbre;
ep->xfer_count += TxByteNbre;
/* Calculate the len of the new buffer to fill */
if (ep->xfer_len_db >= ep->maxpacket)
{
len = ep->maxpacket;
ep->xfer_len_db -= len;
}
else if (ep->xfer_len_db == 0U)
{
len = TxByteNbre;
ep->xfer_fill_db = 0U;
}
else
{
len = ep->xfer_len_db;
ep->xfer_len_db = 0U;
ep->xfer_fill_db = 0;
}
/* Set the Double buffer counter for pmabuffer1 */
PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len);
/* Copy the user buffer to USB PMA */
USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, (uint16_t)len);
}
}
}
/*enable endpoint IN*/
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID);
return HAL_OK;
}
#endif /* defined (USB) */
/**
* @}
*/
#endif /* defined (USB) || defined (USB_OTG_FS) */
#endif /* HAL_PCD_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/