stm32g4xx_hal_pcd_ex.c

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/**
  ******************************************************************************
  * @file    stm32g4xx_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
  *
  * Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32g4xx_hal.h"

/** @addtogroup STM32G4xx_HAL_Driver
  * @{
  */

/** @defgroup PCDEx PCDEx
  * @brief PCD Extended HAL module driver
  * @{
  */

#ifdef HAL_PCD_MODULE_ENABLED

#if defined (USB)
/* 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
  * @{
  */

/**
  * @brief  Configure PMA for EP
  * @param  hpcd  Device instance
  * @param  ep_addr endpoint address
  * @param  ep_kind endpoint Kind
  *                  USB_SNG_BUF: Single Buffer used
  *                  USB_DBL_BUF: Double Buffer used
  * @param  pmaadress: EP address in The PMA: In case of single buffer endpoint
  *                   this parameter is 16-bit value providing the address
  *                   in PMA allocated to endpoint.
  *                   In case of double buffer endpoint this parameter
  *                   is a 32-bit value providing the endpoint buffer 0 address
  *                   in the LSB part of 32-bit value and endpoint buffer 1 address
  *                   in the MSB part of 32-bit value.
  * @retval HAL status
  */

HAL_StatusTypeDef  HAL_PCDEx_PMAConfig(PCD_HandleTypeDef *hpcd, uint16_t ep_addr,
if ((0x80U & ep_addr) == 0x80U)
  {
    ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
  }
  else
  {
    ep = &hpcd->OUT_ep[ep_addr];
  }

  /* Here we check if the endpoint is single or double Buffer*/
  if (ep_kind == PCD_SNG_BUF)
  {
    /* Single Buffer */
    ep->doublebuffer = 0U;

    /* Configure the PMA */
    ep->pmaadress = (uint16_t)pmaadress;
  }
#if (USE_USB_DOUBLE_BUFFER == 1U)
  else /* USB_DBL_BUF */
  {
    /* Double Buffer Endpoint */
    ep->doublebuffer = 1U;

    /* Configure the PMA */
    ep->pmaaddr0 = (uint16_t)(pmaadress & 0xFFFFU);
    ep->pmaaddr1 = (uint16_t)((pmaadress & 0xFFFF0000U) >> 16);
  }
#endif /* (USE_USB_DOUBLE_BUFFER == 1U) */

  return HAL_OK;
}

/**
  * @brief  Activate BatteryCharging feature.
  * @param  hpcd PCD handle
  * @retval HAL status
  */
00124 HAL_StatusTypeDef HAL_PCDEx_ActivateBCD(PCD_HandleTypeDef *hpcd)
{
  USB_TypeDef *USBx = hpcd->Instance;
  hpcd->battery_charging_active = 1U;

  USBx->BCDR &= ~(USB_BCDR_PDEN);
  USBx->BCDR &= ~(USB_BCDR_SDEN);

  /* Enable BCD feature */
  USBx->BCDR |= USB_BCDR_BCDEN;

  return HAL_OK;
}

/**
  * @brief  Deactivate BatteryCharging feature.
  * @param  hpcd PCD handle
  * @retval HAL status
  */
00145 HAL_StatusTypeDef HAL_PCDEx_DeActivateBCD(PCD_HandleTypeDef *hpcd)
{
  USB_TypeDef *USBx = hpcd->Instance;
  hpcd->battery_charging_active = 0U;

  /* Disable BCD feature */
  USBx->BCDR &= ~(USB_BCDR_BCDEN);

  return HAL_OK;
}

/**
  * @brief  Handle BatteryCharging Process.
  * @param  hpcd PCD handle
  * @retval HAL status
  */
00165 void HAL_PCDEx_BCD_VBUSDetect(PCD_HandleTypeDef *hpcd)
{
  USB_TypeDef *USBx = hpcd->Instance;
  uint32_t tickstart = HAL_GetTick();

  /* Wait for Min DCD Timeout */
  HAL_Delay(350U);

  /* Primary detection: checks if connected to Standard Downstream Port
  (without charging capability) */
  USBx->BCDR |= (USB_BCDR_PDEN);
  HAL_Delay(50U);

  /* If Charger detect ? */
  if ((USBx->BCDR & USB_BCDR_PDET) == USB_BCDR_PDET)
  {
    /* Start secondary detection to check connection to Charging Downstream
    Port or Dedicated Charging Port */
    USBx->BCDR &= ~(USB_BCDR_PDEN);
    HAL_Delay(50U);
    USBx->BCDR |= (USB_BCDR_SDEN);
    HAL_Delay(50U);

    /* If CDP ? */
    if ((USBx->BCDR & USB_BCDR_SDET) == USB_BCDR_SDET)
    {
      /* Dedicated Downstream Port DCP */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
      hpcd->BCDCallback(hpcd, PCD_BCD_DEDICATED_CHARGING_PORT);
#else
      HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_DEDICATED_CHARGING_PORT);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
    }
    else
    {
      /* Charging Downstream Port CDP */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
      hpcd->BCDCallback(hpcd, PCD_BCD_CHARGING_DOWNSTREAM_PORT);
#else
      HAL_PCDEx_BCD_Callback(hpcd, PCD_BCD_CHARGING_DOWNSTREAM_PORT);
#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
    }
  }
  else /* NO */
  {
    /* Standard Downstream Port */
#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
    hpcd->BCDCallback(hpcd,