82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/****************************************************************************
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* include/nuttx/video/max7456.h
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*
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* Support for the Maxim MAX7456 Single-Channel Monochrome On-Screen
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* Display with Integrated EEPROM (datasheet 19-0576; Rev 1; 8/08).
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*
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* Copyright (C) 2019 Bill Gatliff. All rights reserved.
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* Author: Bill Gatliff <bgat@billgatliff.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_VIDEO_MAX7456_H
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#define __INCLUDE_NUTTX_VIDEO_MAX7456_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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/****************************************************************************
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* Public Data
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****************************************************************************/
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struct spi_dev_s;
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struct mx7_config_s
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{
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int spi_devid;
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FAR struct spi_dev_s *spi;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: max7456_register
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*
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* Description:
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* Registers an max7456 chip, and creates an interface 'devpath'
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*
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* Input Parameters:
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* path - The full path to the interface to register. E.g., "/dev/osd0"
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* config - Configuration information
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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 max7456_register(FAR const char *path, FAR struct mx7_config_s *config);
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#endif /* __INCLUDE_NUTTX_VIDEO_MAX7456_H */
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