tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_pcd_ex.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32l1xx_hal_pcd_ex.c
   4   * @author  MCD Application Team
   5   * @version V1.0.0
   6   * @date    5-September-2014
   7   * @brief   Extended PCD HAL module driver.
   8   *          This file provides firmware functions to manage the following
   9   *          functionalities of the USB Peripheral Controller:
  10   *           + Configururation of the PMA for EP
  11   *
  12   ******************************************************************************
  13   * @attention
  14   *
  15   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  16   *
  17   * Redistribution and use in source and binary forms, with or without modification,
  18   * are permitted provided that the following conditions are met:
  19   *   1. Redistributions of source code must retain the above copyright notice,
  20   *      this list of conditions and the following disclaimer.
  21   *   2. Redistributions in binary form must reproduce the above copyright notice,
  22   *      this list of conditions and the following disclaimer in the documentation
  23   *      and/or other materials provided with the distribution.
  24   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  25   *      may be used to endorse or promote products derived from this software
  26   *      without specific prior written permission.
  27   *
  28   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  29   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  32   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  34   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  35   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  36   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  37   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38   *
  39   ******************************************************************************
  40   */
  41
  42 /* Includes ------------------------------------------------------------------*/
  43 #include "stm32l1xx_hal.h"
  44
  45 /** @addtogroup STM32L1xx_HAL_Driver
  46   * @{
  47   */
  48
  49 /** @defgroup PCDEx PCDEx
  50   * @brief PCDEx HAL module driver
  51   * @{
  52   */
  53
  54 #ifdef HAL_PCD_MODULE_ENABLED
  55
  56 /* Private typedef -----------------------------------------------------------*/
  57 /* Private define ------------------------------------------------------------*/
  58 /* Private macro -------------------------------------------------------------*/
  59 /* Private variables ---------------------------------------------------------*/
  60 /* Private function prototypes -----------------------------------------------*/
  61 /* Private functions ---------------------------------------------------------*/
  62
  63
  64 /** @defgroup PCDEx_Exported_Functions PCDEx Exported Functions
  65   * @{
  66   */
  67
  68 /*
  69 @verbatim
  70  ===============================================================================
  71                  ##### Peripheral extended features functions #####
  72  ===============================================================================
  73 @endverbatim
  74   * @{
  75   */
  76
  77 /**
  78   * @brief Configure PMA for EP
  79   * @param  hpcd : Device instance
  80   * @param  ep_addr: endpoint address
  81   * @param  ep_kind: endpoint Kind
  82   *                  USB_SNG_BUF: Single Buffer used
  83   *                  USB_DBL_BUF: Double Buffer used
  84   * @param  pmaadress: EP address in The PMA: In case of single buffer endpoint
  85   *                   this parameter is 16-bit value providing the address
  86   *                   in PMA allocated to endpoint.
  87   *                   In case of double buffer endpoint this parameter
  88   *                   is a 32-bit value providing the endpoint buffer 0 address
  89   *                   in the LSB part of 32-bit value and endpoint buffer 1 address
  90   *                   in the MSB part of 32-bit value.
  91   * @retval : status
  92   */
  93
  94 HAL_StatusTypeDef  HAL_PCDEx_PMAConfig(PCD_HandleTypeDef *hpcd,
  95                         uint16_t ep_addr,
  96                         uint16_t ep_kind,
  97                         uint32_t pmaadress)
  98
  99 {
 100   PCD_EPTypeDef *ep;
 101
 102   /* initialize ep structure*/
 103   if ((0x80 & ep_addr) == 0x80)
 104   {
 105     ep = &hpcd->IN_ep[ep_addr & 0x7F];
 106   }
 107   else
 108   {
 109     ep = &hpcd->OUT_ep[ep_addr];
 110   }
 111
 112   /* Here we check if the endpoint is single or double Buffer*/
 113   if (ep_kind == PCD_SNG_BUF)
 114   {
 115     /*Single Buffer*/
 116     ep->doublebuffer = 0;
 117     /*Configure te PMA*/
 118     ep->pmaadress = (uint16_t)pmaadress;
 119   }
 120   else /*USB_DBL_BUF*/
 121   {
 122     /*Double Buffer Endpoint*/
 123     ep->doublebuffer = 1;
 124     /*Configure the PMA*/
 125     ep->pmaaddr0 =  pmaadress & 0xFFFF;
 126     ep->pmaaddr1 =  (pmaadress & 0xFFFF0000) >> 16;
 127   }
 128
 129   return HAL_OK;
 130 }
 131
 132
 133
 134 /**
 135   * @}
 136   */
 137
 138 #endif /* HAL_PCD_MODULE_ENABLED */
 139 /**
 140   * @}
 141   */
 142
 143 /**
 144   * @}
 145   */
 146
 147 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/