6ff1648b4f
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
90 lines
3.4 KiB
C
90 lines
3.4 KiB
C
/****************************************************************************
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* arch/arm/src/stm32f0l0g0/stm32_i2c.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32F0L0G0_STM32_I2C_H
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#define __ARCH_ARM_SRC_STM32F0L0G0_STM32_I2C_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/i2c/i2c_master.h>
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#include "chip.h"
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#include "hardware/stm32_i2c.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* If a dynamic timeout is selected, then a non-negative, non-zero micro-
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* seconds per byte value must be provided as well.
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*/
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#ifdef CONFIG_STM32F0L0G0_I2C_DYNTIMEO
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# if CONFIG_STM32F0L0G0_I2C_DYNTIMEO_USECPERBYTE < 1
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# warning "Ignoring CONFIG_STM32F0L0G0_I2C_DYNTIMEO because of CONFIG_STM32F0L0G0_I2C_DYNTIMEO_USECPERBYTE"
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# undef CONFIG_STM32F0L0G0_I2C_DYNTIMEO
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# endif
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_i2cbus_initialize
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*
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* Description:
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* Initialize the selected I2C port. And return a unique instance of struct
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* struct i2c_master_s. This function may be called to obtain multiple
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* instances of the interface, each of which may be set up with a
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* different frequency and slave address.
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*
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* Input Parameters:
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* Port number (for hardware that has multiple I2C interfaces)
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*
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* Returned Value:
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* Valid I2C device structure reference on success; a NULL on failure
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*
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****************************************************************************/
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FAR struct i2c_master_s *stm32_i2cbus_initialize(int port);
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/****************************************************************************
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* Name: stm32_i2cbus_uninitialize
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*
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* Description:
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* De-initialize the selected I2C port, and power down the device.
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*
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* Input Parameters:
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* Device structure as returned by the stm32_i2cbus_initialize()
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*
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* Returned Value:
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* OK on success, ERROR when internal reference count mismatch or dev
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* points to invalid hardware device.
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*
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****************************************************************************/
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int stm32_i2cbus_uninitialize(FAR struct i2c_master_s *dev);
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#endif /* __ARCH_ARM_SRC_STM32F0L0G0_STM32_I2C_H */
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