From 4a38cf6f44d1c013cbe794093ea6c5b50337431a Mon Sep 17 00:00:00 2001 From: Paul Selkirk Date: Thu, 14 Apr 2016 18:50:38 -0400 Subject: import mbed rtos library --- .../TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c | 206 +++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c (limited to 'libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c') diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c new file mode 100644 index 0000000..f302774 --- /dev/null +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c @@ -0,0 +1,206 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_i2c_ex.c + * @author MCD Application Team + * @version V1.4.1 + * @date 09-October-2015 + * @brief I2C Extension HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of I2C extension peripheral: + * + Extension features functions + * + @verbatim + ============================================================================== + ##### I2C peripheral extension features ##### + ============================================================================== + + [..] Comparing to other previous devices, the I2C interface for STM32F427xx/437xx/ + 429xx/439xx devices contains the following additional features : + + (+) Possibility to disable or enable Analog Noise Filter + (+) Use of a configured Digital Noise Filter + + ##### How to use this driver ##### + ============================================================================== + [..] This driver provides functions to configure Noise Filter + (#) Configure I2C Analog noise filter using the function HAL_I2C_AnalogFilter_Config() + (#) Configure I2C Digital noise filter using the function HAL_I2C_DigitalFilter_Config() + + @endverbatim + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2015 STMicroelectronics

+ * + * 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 "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +/** @defgroup I2CEx I2CEx + * @brief I2C HAL module driver + * @{ + */ + +#ifdef HAL_I2C_MODULE_ENABLED + +#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\ + defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx) ||\ + defined(STM32F469xx) || defined(STM32F479xx) +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ +/** @defgroup I2CEx_Exported_Functions I2C Exported Functions + * @{ + */ + + +/** @defgroup I2CEx_Exported_Functions_Group1 Extension features functions + * @brief Extension features functions + * +@verbatim + =============================================================================== + ##### Extension features functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Configure Noise Filters + +@endverbatim + * @{ + */ + +/** + * @brief Configures I2C Analog noise filter. + * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains + * the configuration information for the specified I2Cx peripheral. + * @param AnalogFilter: new state of the Analog filter. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter) +{ + uint32_t tmp = 0; + + /* Check the parameters */ + assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); + assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter)); + + tmp = hi2c->State; + if((tmp == HAL_I2C_STATE_BUSY) || (tmp == HAL_I2C_STATE_BUSY_TX) || (tmp == HAL_I2C_STATE_BUSY_RX)) + { + return HAL_BUSY; + } + + hi2c->State = HAL_I2C_STATE_BUSY; + + /* Disable the selected I2C peripheral */ + __HAL_I2C_DISABLE(hi2c); + + /* Reset I2Cx ANOFF bit */ + hi2c->Instance->FLTR &= ~(I2C_FLTR_ANOFF); + + /* Disable the analog filter */ + hi2c->Instance->FLTR |= AnalogFilter; + + __HAL_I2C_ENABLE(hi2c); + + hi2c->State = HAL_I2C_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Configures I2C Digital noise filter. + * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains + * the configuration information for the specified I2Cx peripheral. + * @param DigitalFilter: Coefficient of digital noise filter between 0x00 and 0x0F. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter) +{ + uint16_t tmpreg = 0; + uint32_t tmp = 0; + + /* Check the parameters */ + assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); + assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter)); + + tmp = hi2c->State; + if((tmp == HAL_I2C_STATE_BUSY) || (tmp == HAL_I2C_STATE_BUSY_TX) || (tmp == HAL_I2C_STATE_BUSY_RX)) + { + return HAL_BUSY; + } + + hi2c->State = HAL_I2C_STATE_BUSY; + + /* Disable the selected I2C peripheral */ + __HAL_I2C_DISABLE(hi2c); + + /* Get the old register value */ + tmpreg = hi2c->Instance->FLTR; + + /* Reset I2Cx DNF bit [3:0] */ + tmpreg &= ~(I2C_FLTR_DNF); + + /* Set I2Cx DNF coefficient */ + tmpreg |= DigitalFilter; + + /* Store the new register value */ + hi2c->Instance->FLTR = tmpreg; + + __HAL_I2C_ENABLE(hi2c); + + hi2c->State = HAL_I2C_STATE_READY; + + return HAL_OK; +} + +/** + * @} + */ + +/** + * @} + */ +#endif /* STM32F427xx || STM32F429xx || STM32F437xx || STM32F439xx || STM32F401xC ||\ + STM32F401xE || STM32F446xx || STM32F469xx || STM32F479xx */ + +#endif /* HAL_I2C_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3