82 lines
3.1 KiB
C
82 lines
3.1 KiB
C
/****************************************************************************
|
|
* include/nuttx/ioexpander/iso1i813t.h
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 __INCLUDE_NUTTX_IOEXPANDER_ISO1I813T_H
|
|
#define __INCLUDE_NUTTX_IOEXPANDER_ISO1I813T_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <stdint.h>
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* A reference to a structure of this type must be passed to the ISO1I813Txx
|
|
* driver when the driver is instantiated. This structure provides
|
|
* information about the configuration of the ISO1I813Txx and provides some
|
|
* board-specific hooks.
|
|
*
|
|
* Memory for this structure is provided by the caller. It is not copied by
|
|
* the driver and is presumed to persist while the driver is active. The
|
|
* memory must be writeable because, under certain circumstances, the driver
|
|
* may modify the frequency.
|
|
*/
|
|
|
|
struct iso1i813t_config_s
|
|
{
|
|
/* Device characterization */
|
|
|
|
uint8_t id; /* ID if multiple devices used to select correct CS */
|
|
uint8_t mode; /* SPI mode */
|
|
uint32_t frequency; /* SPI frequency */
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: iso1i813t_initialize
|
|
*
|
|
* Description:
|
|
* Instantiate and configure the ISO1I813Txx device driver to use the
|
|
* provided SPI device instance.
|
|
*
|
|
* Input Parameters:
|
|
* spi - A SPI driver instance
|
|
* config - Persistent board configuration data
|
|
*
|
|
* Returned Value:
|
|
* an ioexpander_dev_s instance on success, NULL on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
struct spi_dev_s;
|
|
FAR struct ioexpander_dev_s *iso1i813t_initialize(FAR struct spi_dev_s *spi,
|
|
FAR struct iso1i813t_config_s *config);
|
|
|
|
#endif /* __INCLUDE_NUTTX_IOEXPANDER_ISO1I813T_H */
|