| /** |
| ****************************************************************************** |
| * @file stm32f2xx_hal_pcd_ex.c |
| * @author MCD Application Team |
| * @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) 2017 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 "stm32f2xx_hal.h" |
| |
| /** @addtogroup STM32F2xx_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 = 0U; |
| |
| /* 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 << 16U) | Tx_Offset); |
| } |
| else |
| { |
| Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16U; |
| for (i = 0; i < (fifo - 1); i++) |
| { |
| Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16U); |
| } |
| |
| /* Multiply Tx_Size by 2 to get higher performance */ |
| hpcd->Instance->DIEPTXF[fifo - 1] = (uint32_t)(((uint32_t)size << 16U) | 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 /* HAL_PCD_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |