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77 lines
2 KiB
C
77 lines
2 KiB
C
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/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2015, Realtek Semiconductor Corp.
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* All rights reserved.
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*
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* This module is a confidential and proprietary property of RealTek and
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* possession or use of this module requires written permission of RealTek.
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*******************************************************************************
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*/
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#ifndef MBED_EXT_I2S_API_EXT_H
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#define MBED_EXT_I2S_API_EXT_H
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#include "device.h"
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#include "rtl8195a.h"
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#include "hal_i2s.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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SR_8KHZ = I2S_SR_8KHZ,
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SR_16KHZ = I2S_SR_16KHZ,
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SR_24KHZ = I2S_SR_24KHZ,
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SR_32KHZ = I2S_SR_32KHZ,
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SR_48KHZ = I2S_SR_48KHZ,
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SR_96KHZ = I2S_SR_96KHZ,
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SR_7p35KHZ = I2S_SR_7p35KHZ,
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SR_11p02KHZ = I2S_SR_11p02KHZ,
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SR_22p05KHZ = I2S_SR_22p05KHZ,
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SR_29p4KHZ = I2S_SR_29p4KHZ,
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SR_44p1KHZ = I2S_SR_44p1KHZ,
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SR_88p2KHZ = I2S_SR_88p2KHZ
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};
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enum {
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CH_STEREO = I2S_CH_STEREO,
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CH_MONO = I2S_CH_MONO
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};
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enum {
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WL_16b = I2S_WL_16,
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WL_24b = I2S_WL_24
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};
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enum {
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I2S_DIR_RX = I2S_ONLY_RX, // Rx Only
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I2S_DIR_TX = I2S_ONLY_TX, // Tx Only
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I2S_DIR_TXRX = I2S_TXRX // Tx & Rx (BiDirection)
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};
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typedef void (*i2s_irq_handler)(uint32_t id, char *pbuf);
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typedef struct i2s_s i2s_t;
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void i2s_init(i2s_t *obj, PinName sck, PinName ws, PinName sd);
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void i2s_set_dma_buffer(i2s_t *obj, char *tx_buf, char *rx_buf,
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uint32_t page_num, uint32_t page_size);
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void i2s_tx_irq_handler(i2s_t *obj, i2s_irq_handler handler, uint32_t id);
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void i2s_rx_irq_handler(i2s_t *obj, i2s_irq_handler handler, uint32_t id);
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void i2s_set_direction(i2s_t *obj, int trx_type);
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void i2s_set_param(i2s_t *obj, int channel_num, int rate, int word_len);
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void i2s_deinit(i2s_t *obj);
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int* i2s_get_tx_page(i2s_t *obj);
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void i2s_send_page(i2s_t *obj, uint32_t *pbuf);
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void i2s_recv_page(i2s_t *obj);
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void i2s_enable(i2s_t *obj);
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void i2s_disable(i2s_t *obj);
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#ifdef __cplusplus
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}
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#endif
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#endif
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