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/**
******************************************************************************
* @file stm32f4xx_hal_pcd_ex.c
* @author MCD Application Team
* @version V1.3.2
* @date 26-June-2015
* @brief PCD HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the USB Peripheral Controller:
* + Extended features functions
*
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @defgroup PCDEx PCDEx
* @brief PCD Extended HAL module driver
* @{
*/
#ifdef HAL_PCD_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup PCDEx_Exported_Functions PCD Extended 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
* @{
*/
/**
* @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 = 0;
uint32_t Tx_Offset = 0;
/* 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 == 0)
{
hpcd->Instance->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((uint32_t)size << 16) | Tx_Offset);
}
else
{
Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16;
for (i = 0; i < (fifo - 1); i++)
{
Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16);
}
/* Multiply Tx_Size by 2 to get higher performance */
hpcd->Instance->DIEPTXF[fifo - 1] = (uint32_t)(((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;
}
#if defined(STM32F446xx)
/**
* @brief Activate LPM feature
* @param hpcd: PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCDEx_ActivateLPM(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
hpcd->lpm_active = ENABLE;
hpcd->LPM_State = LPM_L0;
USBx->GINTMSK |= USB_OTG_GINTMSK_LPMINTM;
USBx->GLPMCFG |= (USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
return HAL_OK;
}
/**
* @brief Deactivate LPM feature.
* @param hpcd: PCD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCDEx_DeActivateLPM(PCD_HandleTypeDef *hpcd)
{
USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
hpcd->lpm_active = DISABLE;
USBx->GINTMSK &= ~USB_OTG_GINTMSK_LPMINTM;
USBx->GLPMCFG &= ~(USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
return HAL_OK;
}
/**
* @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)
{
}
#endif /* STM32F446xx */
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_PCD_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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