/****************************************************************************
 * arch/arm/src/stm32f7/stm32_sai.h
 *
 *   Copyright (C) 2019 Gregory Nutt. All rights reserved.
 *   Copyright (c) 2016 Motorola Mobility, LLC. All rights reserved.
 *
 * 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 __ARCH_ARM_SRC_STM32F7_STM32_SAI_H
#define __ARCH_ARM_SRC_STM32F7_STM32_SAI_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include "chip.h"
#include "hardware/stm32_sai.h"

#include <nuttx/audio/i2s.h>

/****************************************************************************
 * Pre-processor definitions
 ****************************************************************************/

#define SAI1_BLOCK_A     0
#define SAI1_BLOCK_B     1
#define SAI2_BLOCK_A     2
#define SAI2_BLOCK_B     3

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#ifndef __ASSEMBLY__
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

typedef uint32_t (*stm32_sai_sampleratecb_t)(struct i2s_dev_s *dev,
                                             uint32_t rate);

/****************************************************************************
 * Name: stm32_sai_initialize
 *
 * Description:
 *   Initialize the selected SAI block
 *
 * Input Parameters:
 *   intf - I2S interface number (identifying the "logical" SAI interface)
 *
 * Returned Value:
 *   Valid I2S device structure reference on success; a NULL on failure
 *
 ****************************************************************************/

struct i2s_dev_s *stm32_sai_initialize(int intf,
                  stm32_sai_sampleratecb_t sampleratecb);

#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */

#endif /* __ARCH_ARM_SRC_STM32F7_STM32_SAI_H */
