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This is the progress that I had made before putting this project on GitHub
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Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.c
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Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pcd_ex.c
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/**
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******************************************************************************
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* @file stm32f4xx_hal_pcd_ex.c
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* @author MCD Application Team
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* @brief PCD HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the USB Peripheral Controller:
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* + Extended features functions
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_hal.h"
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/** @addtogroup STM32F4xx_HAL_Driver
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* @{
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*/
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/** @defgroup PCDEx PCDEx
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* @brief PCD Extended HAL module driver
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* @{
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*/
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#ifdef HAL_PCD_MODULE_ENABLED
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#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) || \
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defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \
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defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx) || \
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defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
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defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @defgroup PCDEx_Exported_Functions PCD Extended Exported Functions
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* @{
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*/
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/** @defgroup PCDEx_Exported_Functions_Group1 Peripheral Control functions
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* @brief PCDEx control functions
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*
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@verbatim
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===============================================================================
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##### Extended features functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Update FIFO configuration
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@endverbatim
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* @{
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*/
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/**
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* @brief Set Tx FIFO
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* @param hpcd PCD handle
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* @param fifo The number of Tx fifo
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* @param size Fifo size
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_SetTxFiFo(PCD_HandleTypeDef *hpcd, uint8_t fifo, uint16_t size)
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{
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uint8_t i = 0;
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uint32_t Tx_Offset = 0U;
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/* TXn min size = 16 words. (n : Transmit FIFO index)
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When a TxFIFO is not used, the Configuration should be as follows:
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case 1 : n > m and Txn is not used (n,m : Transmit FIFO indexes)
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--> Txm can use the space allocated for Txn.
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case2 : n < m and Txn is not used (n,m : Transmit FIFO indexes)
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--> Txn should be configured with the minimum space of 16 words
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The FIFO is used optimally when used TxFIFOs are allocated in the top
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of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
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When DMA is used 3n * FIFO locations should be reserved for internal DMA registers */
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Tx_Offset = hpcd->Instance->GRXFSIZ;
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if(fifo == 0)
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{
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hpcd->Instance->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((uint32_t)size << 16U) | Tx_Offset);
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}
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else
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{
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Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16U;
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for (i = 0; i < (fifo - 1); i++)
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{
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Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16U);
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}
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/* Multiply Tx_Size by 2 to get higher performance */
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hpcd->Instance->DIEPTXF[fifo - 1] = (uint32_t)(((uint32_t)size << 16U) | Tx_Offset);
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}
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return HAL_OK;
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}
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/**
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* @brief Set Rx FIFO
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* @param hpcd PCD handle
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* @param size Size of Rx fifo
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_SetRxFiFo(PCD_HandleTypeDef *hpcd, uint16_t size)
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{
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hpcd->Instance->GRXFSIZ = size;
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return HAL_OK;
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}
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#if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
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defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
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/**
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* @brief Activate LPM feature
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* @param hpcd PCD handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_ActivateLPM(PCD_HandleTypeDef *hpcd)
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{
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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hpcd->lpm_active = ENABLE;
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hpcd->LPM_State = LPM_L0;
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USBx->GINTMSK |= USB_OTG_GINTMSK_LPMINTM;
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USBx->GLPMCFG |= (USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
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return HAL_OK;
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}
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/**
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* @brief Deactivate LPM feature.
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* @param hpcd PCD handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_DeActivateLPM(PCD_HandleTypeDef *hpcd)
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{
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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hpcd->lpm_active = DISABLE;
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USBx->GINTMSK &= ~USB_OTG_GINTMSK_LPMINTM;
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USBx->GLPMCFG &= ~(USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
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return HAL_OK;
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}
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/**
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* @brief Send LPM message to user layer callback.
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* @param hpcd PCD handle
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* @param msg LPM message
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* @retval HAL status
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*/
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__weak void HAL_PCDEx_LPM_Callback(PCD_HandleTypeDef *hpcd, PCD_LPM_MsgTypeDef msg)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hpcd);
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UNUSED(msg);
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}
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#endif /* STM32F446xx || STM32F469xx || STM32F479xx || STM32F412Zx || STM32F412Rx || STM32F412Vx || STM32F412Cx || STM32F413xx || STM32F423xx */
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#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
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/**
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* @brief HAL_PCDEx_BCD_VBUSDetect : handle BatteryCharging Process
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* @param hpcd PCD handle
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* @retval HAL status
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*/
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void HAL_PCDEx_BCD_VBUSDetect(PCD_HandleTypeDef *hpcd)
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{
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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uint32_t tickstart = HAL_GetTick();
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/* Start BCD When device is connected */
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if (USBx_DEVICE->DCTL & USB_OTG_DCTL_SDIS)
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{
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/* Enable DCD : Data Contact Detect */
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USBx->GCCFG |= USB_OTG_GCCFG_DCDEN;
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/* Wait Detect flag or a timeout is happen*/
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while ((USBx->GCCFG & USB_OTG_GCCFG_DCDET) == 0U)
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{
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/* Check for the Timeout */
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if((HAL_GetTick() - tickstart ) > 1000U)
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{
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_ERROR);
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return;
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}
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}
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/* Right response got */
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HAL_Delay(100U);
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/* Check Detect flag*/
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if (USBx->GCCFG & USB_OTG_GCCFG_DCDET)
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{
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_CONTACT_DETECTION);
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}
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/*Primary detection: checks if connected to Standard Downstream Port
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(without charging capability) */
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USBx->GCCFG &=~ USB_OTG_GCCFG_DCDEN;
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USBx->GCCFG |= USB_OTG_GCCFG_PDEN;
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HAL_Delay(100U);
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if (!(USBx->GCCFG & USB_OTG_GCCFG_PDET))
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{
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/* Case of Standard Downstream Port */
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_STD_DOWNSTREAM_PORT);
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}
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else
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{
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/* start secondary detection to check connection to Charging Downstream
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Port or Dedicated Charging Port */
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USBx->GCCFG &=~ USB_OTG_GCCFG_PDEN;
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USBx->GCCFG |= USB_OTG_GCCFG_SDEN;
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HAL_Delay(100U);
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if ((USBx->GCCFG) & USB_OTG_GCCFG_SDET)
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{
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/* case Dedicated Charging Port */
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_DEDICATED_CHARGING_PORT);
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}
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else
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{
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/* case Charging Downstream Port */
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_CHARGING_DOWNSTREAM_PORT);
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}
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}
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/* Battery Charging capability discovery finished */
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HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_DISCOVERY_COMPLETED);
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}
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}
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/**
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* @brief HAL_PCDEx_ActivateBCD : active BatteryCharging feature
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* @param hpcd PCD handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_ActivateBCD(PCD_HandleTypeDef *hpcd)
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{
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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hpcd->battery_charging_active = ENABLE;
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USBx->GCCFG |= (USB_OTG_GCCFG_BCDEN);
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return HAL_OK;
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}
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/**
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* @brief HAL_PCDEx_DeActivateBCD : de-active BatteryCharging feature
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* @param hpcd PCD handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_PCDEx_DeActivateBCD(PCD_HandleTypeDef *hpcd)
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{
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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hpcd->battery_charging_active = DISABLE;
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USBx->GCCFG &= ~(USB_OTG_GCCFG_BCDEN);
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return HAL_OK;
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}
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/**
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* @brief HAL_PCDEx_BatteryCharging_Callback : Send BatteryCharging message to user layer
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* @param hpcd PCD handle
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* @param msg LPM message
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* @retval HAL status
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*/
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__weak void HAL_PCDEx_BCD_Callback(PCD_HandleTypeDef *hpcd, PCD_BCD_MsgTypeDef msg)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hpcd);
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UNUSED(msg);
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}
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#endif /* STM32F412Zx || STM32F412Rx || STM32F412Vx || STM32F412Cx || STM32F413xx || STM32F423xx */
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx ||
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STM32F401xC || STM32F401xE || STM32F411xE || STM32F446xx || STM32F469xx || STM32F479xx || STM32F412Zx || STM32F412Rx ||
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STM32F412Vx || STM32F412Cx || STM32F413xx || STM32F423xx */
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#endif /* HAL_PCD_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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