Diff: targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_spi_ex.c

Revision:

394:83f921546702

Parent:

354:e67efb2aab0e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_spi_ex.c	Fri Nov 07 15:45:07 2014 +0000
@@ -0,0 +1,153 @@
+/**
+  ******************************************************************************
+  * @file    stm32l1xx_hal_spi_ex.c
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    5-September-2014
+  * @brief   Extended SPI HAL module driver.
+  *    
+  *          This file provides firmware functions to manage the following 
+  *          functionalities SPI extension peripheral:
+  *           + Extended Peripheral Control functions
+  *  
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 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 "stm32l1xx_hal.h"
+
+/** @addtogroup STM32L1xx_HAL_Driver
+  * @{
+  */
+
+/** @addtogroup SPI
+  * @{
+  */
+#ifdef HAL_SPI_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @addtogroup SPI_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup SPI_Exported_Functions_Group1
+ *
+  * @{
+  */
+
+/**
+  * @brief  Initializes the SPI according to the specified parameters 
+  *         in the SPI_InitTypeDef and create the associated handle.
+  * @param  hspi: pointer to a SPI_HandleTypeDef structure that contains
+  *                the configuration information for SPI module.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi)
+{
+  /* Check the SPI handle allocation */
+  if(hspi == HAL_NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance));
+  assert_param(IS_SPI_MODE(hspi->Init.Mode));
+  assert_param(IS_SPI_DIRECTION_MODE(hspi->Init.Direction));
+  assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize));
+  assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity));
+  assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase));
+  assert_param(IS_SPI_NSS(hspi->Init.NSS));
+  assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler));
+  assert_param(IS_SPI_FIRST_BIT(hspi->Init.FirstBit));
+  assert_param(IS_SPI_TIMODE(hspi->Init.TIMode));
+  assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation));
+  assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial));
+
+  if(hspi->State == HAL_SPI_STATE_RESET)
+  {
+    /* Init the low level hardware : GPIO, CLOCK, NVIC... */
+    HAL_SPI_MspInit(hspi);
+  }
+  
+  hspi->State = HAL_SPI_STATE_BUSY;
+
+  /* Disble the selected SPI peripheral */
+  __HAL_SPI_DISABLE(hspi);
+
+  /*----------------------- SPIx CR1 & CR2 Configuration ---------------------*/
+  /* Configure : SPI Mode, Communication Mode, Data size, Clock polarity and phase, NSS management,
+  Communication speed, First bit and CRC calculation state */
+  hspi->Instance->CR1 = (hspi->Init.Mode | hspi->Init.Direction | hspi->Init.DataSize |
+                         hspi->Init.CLKPolarity | hspi->Init.CLKPhase | (hspi->Init.NSS & SPI_CR1_SSM) |
+                         hspi->Init.BaudRatePrescaler | hspi->Init.FirstBit  | hspi->Init.CRCCalculation);
+
+  /* Configure : NSS management */
+  hspi->Instance->CR2 = (((hspi->Init.NSS >> 16) & SPI_CR2_SSOE) | hspi->Init.TIMode);
+
+  /*---------------------------- SPIx CRCPOLY Configuration ------------------*/
+  /* Configure : CRC Polynomial */
+  hspi->Instance->CRCPR = hspi->Init.CRCPolynomial;
+
+#if defined (STM32L100xC) || defined (STM32L151xC) || defined (STM32L152xC) || defined (STM32L162xC) || defined (STM32L151xCA) || defined (STM32L151xD) || defined (STM32L152xCA) || defined (STM32L152xD) || defined (STM32L162xCA) || defined (STM32L162xD) || defined (STM32L151xE) || defined (STM32L152xE) || defined (STM32L162xE)
+  /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */
+  CLEAR_BIT(hspi->Instance->I2SCFGR, SPI_I2SCFGR_I2SMOD);
+#endif
+
+  hspi->ErrorCode = HAL_SPI_ERROR_NONE;
+  hspi->State = HAL_SPI_STATE_READY;
+  
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_SPI_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/