128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/****************************************************************************
|
|
* include/nuttx/audio/vs1053.h
|
|
*
|
|
* Copyright (C) 2013 Ken Pettit. All rights reserved.
|
|
* Author: Ken Pettit <pettitkd@gmail.com>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_NUTTX_AUDIO_VS1053_H
|
|
#define __INCLUDE_NUTTX_AUDIO_VS1053_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <nuttx/irq.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* VS1053 Configuration Settings:
|
|
*
|
|
* CONFIG_VS1053 - Enabled VS1053 support
|
|
* CONFIG_VS1053_SPIMODE - Controls the SPI mode
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* The VS1053 provides Data Request (DREQ) interrupts to the MCU via a GPIO
|
|
* pin and also has a chip reset GPIO. The following structure provides an
|
|
* MCU-independent mechanism for controlling the VS1053 GPIOs.
|
|
*/
|
|
|
|
struct vs1053_lower_s
|
|
{
|
|
int (*attach)(FAR const struct vs1053_lower_s *lower, xcpt_t handler,
|
|
FAR void *arg);
|
|
void (*enable)(FAR const struct vs1053_lower_s *lower);
|
|
void (*disable)(FAR const struct vs1053_lower_s *lower);
|
|
void (*reset)(FAR const struct vs1053_lower_s *lower, bool state);
|
|
int (*read_dreq)(FAR const struct vs1053_lower_s *lower);
|
|
int irq;
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: vs1053_initialize
|
|
*
|
|
* Description:
|
|
* Initialize the VS1053 driver. This will perform a chip reset of the
|
|
* device as part of initialization.
|
|
*
|
|
* Parameters:
|
|
* spi - A reference to the platform's SPI driver for the VS1053
|
|
* lower - The MCU-specific interrupt used to control low-level MCU
|
|
* functions (i.e., VS1053 GPIO interrupts).
|
|
* devno - If more than one VS1053 is supported, then this is the
|
|
* zero based number that identifies the VS1053;
|
|
*
|
|
* Returned Value:
|
|
* OK on success; Negated errno on failure.
|
|
*
|
|
* Assumptions:
|
|
*
|
|
****************************************************************************/
|
|
|
|
struct spi_dev_s; /* See nuttx/spi/spi.h */
|
|
struct audio_lowerhalf_s; /* See nuttx/audio/audio.h */
|
|
|
|
FAR struct audio_lowerhalf_s *vs1053_initialize(FAR struct spi_dev_s *spi,
|
|
FAR const struct vs1053_lower_s *lower,
|
|
unsigned int devno);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_NUTTX_AUDIO_VS1053_H */
|