77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
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/****************************************************************************
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* include/nuttx/leds/ws2812.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 __INCLUDE_NUTTX_LEDS_WS2812_H
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#define __INCLUDE_NUTTX_LEDS_WS2812_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/fs/ioctl.h>
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#include <nuttx/spi/spi.h>
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#ifdef CONFIG_WS2812
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifdef __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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* Name: ws2812_leds_register
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*
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* Description:
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* Initialize the WS2812 device as a LEDS interface.
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*
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* Input Parameters:
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* devpath - The full path to the driver to register. E.g., "/dev/leds0"
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* spi - An instance of the SPI interface to use to communicate
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* with the WS2812.
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* nleds - Number of addressable LEDs
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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int ws2812_leds_register(FAR const char *devpath, FAR struct spi_dev_s *spi,
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uint16_t nleds);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_WS2812 */
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#endif /* __INCLUDE_NUTTX_LEDS_WS2812_H */
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