92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/****************************************************************************
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* boards/arm/cxd56xx/spresense/include/cxd56_i2cdev.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 __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_I2CDEV_H
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#define __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_I2CDEV_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 <stdint.h>
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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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: board_i2cdev_initialize
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*
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* Description:
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* Initialize i2c driver and register the /dev/i2c device.
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*
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****************************************************************************/
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#ifdef CONFIG_CXD56_I2C_DRIVER
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int board_i2cdev_initialize(int bus);
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#endif
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/****************************************************************************
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* Name: board_i2cdev_bitbang_initialize
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*
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* Description:
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* Initialize i2c bitbang driver and register as the /dev/i2c device.
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*
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* Input Parameters:
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* sda_pin - The pin number used as I2C SDA signal
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* scl_pin - The pin number used as I2C SCL signal
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*
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* Returned Value:
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* OK on success; Negated errno on failure.
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*
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****************************************************************************/
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#ifdef CONFIG_I2C_BITBANG
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int board_i2cdev_bitbang_initialize(uint32_t sda_pin, uint32_t scl_pin);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_I2CDEV_H */
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