/*************************************************************************** * * Copyright 2015-2019 BES. * All rights reserved. All unpublished rights reserved. * * No part of this work may be used or reproduced in any form or by any * means, or stored in a database or retrieval system, without prior written * permission of BES. * * Use of this work is governed by a license granted by BES. * This work contains confidential and proprietary information of * BES. which is protected by copyright, trade secret, * trademark and other intellectual property rights. * ****************************************************************************/ #ifndef __HAL_I2S_H__ #define __HAL_I2S_H__ #ifdef __cplusplus extern "C" { #endif #include "plat_types.h" #include "hal_aud.h" #include "hal_cmu.h" enum HAL_I2S_MODE_T { HAL_I2S_MODE_NULL, HAL_I2S_MODE_MASTER, HAL_I2S_MODE_SLAVE, }; enum HAL_I2S_SYNC_TYPE_T { HAL_I2S_SYNC_TYPE_NONE, HAL_I2S_SYNC_TYPE_BT, HAL_I2S_SYNC_TYPE_GPIO, }; struct HAL_I2S_CONFIG_T { bool use_dma; bool chan_sep_buf; bool sync_start; uint8_t cycles; uint8_t bits; uint8_t channel_num; enum AUD_CHANNEL_MAP_T channel_map; uint32_t sample_rate; }; int hal_i2s_open(enum HAL_I2S_ID_T id, enum AUD_STREAM_T stream, enum HAL_I2S_MODE_T mode); int hal_i2s_close(enum HAL_I2S_ID_T id, enum AUD_STREAM_T stream); int hal_i2s_start_stream(enum HAL_I2S_ID_T id, enum AUD_STREAM_T stream); int hal_i2s_stop_stream(enum HAL_I2S_ID_T id, enum AUD_STREAM_T stream); int hal_i2s_setup_stream(enum HAL_I2S_ID_T id, enum AUD_STREAM_T stream, const struct HAL_I2S_CONFIG_T *cfg); int hal_i2s_send(enum HAL_I2S_ID_T id, const uint8_t *value, uint32_t value_len); uint8_t hal_i2s_recv(enum HAL_I2S_ID_T id, uint8_t *value, uint32_t value_len); void hal_i2s_enable_delay(enum HAL_I2S_ID_T id); void hal_i2s_disable_delay(enum HAL_I2S_ID_T id); void hal_i2s_enable(enum HAL_I2S_ID_T id); //================================================================================ // I2S Packet Mode //================================================================================ int hal_i2s_packet_open(void); int hal_i2s_packet_close(void); int hal_i2s_start_transfer(void); int hal_i2s_stop_transfer(void); void hal_i2s_tx_sync_enable(enum HAL_I2S_SYNC_TYPE_T type); void hal_i2s_tx_sync_disable(void); void hal_i2s_rx_sync_enable(enum HAL_I2S_SYNC_TYPE_T type); void hal_i2s_rx_sync_disable(void); void hal_i2s_clk_sync_enable(enum HAL_I2S_SYNC_TYPE_T type); void hal_i2s_clk_sync_disable(void); #ifdef __cplusplus } #endif #endif