* arch/arm/src/nrf53/nrf53_i2c.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_NRF53_NRF53_I2C_H
#define __ARCH_ARM_SRC_NRF53_NRF53_I2C_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/i2c/i2c_master.h>
#include "chip.h"
* Public Function Prototypes
****************************************************************************/
* Name: nrf53_i2cbus_initialize
*
* Description:
* Initialize the selected I2C port. And return a unique instance of struct
* struct i2c_master_s. This function may be called to obtain multiple
* instances of the interface, each of which may be set up with a
* different frequency and slave address.
*
* Input Parameters:
* Port number (for hardware that has multiple TWI interfaces)
*
* Returned Value:
* Valid I2C device structure reference on success; a NULL on failure
*
****************************************************************************/
struct i2c_master_s *nrf53_i2cbus_initialize(int port);
* Name: nrf53_i2cbus_uninitialize
*
* Description:
* De-initialize the selected I2C port, and power down the device.
*
* Input Parameters:
* Device structure as returned by the nrf53_i2cbus_initialize()
*
* Returned Value:
* OK on success, ERROR when internal reference count mismatch or dev
* points to invalid hardware device.
*
****************************************************************************/
int nrf53_i2cbus_uninitialize(struct i2c_master_s *dev);
#endif