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/**
******************************************************************************
* @file stm32f2xx_hal_pcd_ex.c
* @author MCD Application Team
* @brief PCD Extended HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the USB Peripheral Controller:
* + Extended features functions
*
******************************************************************************
* @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 "stm32f2xx_hal.h"
/** @addtogroup STM32F2xx_HAL_Driver
* @{
*/
/** @defgroup PCDEx PCDEx
* @brief PCD Extended HAL module driver
* @{
*/
#ifdef HAL_PCD_MODULE_ENABLED
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup PCDEx_Exported_Functions PCDEx Exported Functions
* @{
*/
/** @defgroup PCDEx_Exported_Functions_Group1 Peripheral Control functions
* @brief PCDEx control functions
*
@verbatim
===============================================================================
##### Extended features functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Update FIFO configuration
@endverbatim
* @{
*/
#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/**
* @brief Set Tx FIFO
* @param hpcd PCD handle
* @param fifo The number of Tx fifo
* @param size Fifo size
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCDEx_SetTxFiFo(PCD_HandleTypeDef *hpcd, uint8_t fifo, uint16_t size)
{
uint8_t i;
uint32_t Tx_Offset;
/* TXn min size = 16 words. (n : Transmit FIFO index)
When a TxFIFO is not used, the Configuration should be as follows:
case 1 : n > m and Txn is not used (n,m : Transmit FIFO indexes)
--> Txm can use the space allocated for Txn.
case2 : n < m and Txn is not used (n,m : Transmit FIFO indexes)
--> Txn should be configured with the minimum space of 16 words
The FIFO is used optimally when used TxFIFOs are allocated in the top
of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
When DMA is used 3n * FIFO locations should be reserved for internal DMA registers */
Tx_Offset = hpcd->Instance->GRXFSIZ;
if (fifo == 0U)
{
hpcd->Instance->DIEPTXF0_HNPTXFSIZ = ((uint32_t)size << 16) | Tx_Offset;
}
else
{
Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16;
for (i = 0U; i < (fifo - 1U); i++)
{
Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16);
}
/* Multiply Tx_Size by 2 to get higher performance */
hpcd->Instance->DIEPTXF[fifo - 1U] = ((uint32_t)size << 16) | Tx_Offset;
}
return HAL_OK;
}
/**
* @brief Set Rx FIFO
* @param hpcd PCD handle
* @param size Size of Rx fifo
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCDEx_SetRxFiFo(PCD_HandleTypeDef *hpcd, uint16_t size)
{
hpcd->Instance->GRXFSIZ = size;
return HAL_OK;
}
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
/**
* @brief Send LPM message to user layer callback.
* @param hpcd PCD handle
* @param msg LPM message
* @retval HAL status
*/
__weak void HAL_PCDEx_LPM_Callback(PCD_HandleTypeDef *hpcd, PCD_LPM_MsgTypeDef msg)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(msg);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCDEx_LPM_Callback could be implemented in the user file
*/
}
/**
* @brief Send BatteryCharging message to user layer callback.
* @param hpcd PCD handle
* @param msg LPM message
* @retval HAL status
*/
__weak void HAL_PCDEx_BCD_Callback(PCD_HandleTypeDef *hpcd, PCD_BCD_MsgTypeDef msg)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hpcd);
UNUSED(msg);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_PCDEx_BCD_Callback could be implemented in the user file
*/
}
/**
* @}
*/
/**
* @}
*/
#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
#endif /* HAL_PCD_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/