54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
#ifndef I2S_PARALLEL_H
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#define I2S_PARALLEL_H
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#if defined(ESP32)
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "soc/i2s_struct.h"
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#include "rom/lldesc.h"
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typedef enum {
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I2S_PARALLEL_BITS_8=8,
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I2S_PARALLEL_BITS_16=16,
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I2S_PARALLEL_BITS_32=32,
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} i2s_parallel_cfg_bits_t;
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typedef struct {
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void *memory;
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size_t size;
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} i2s_parallel_buffer_desc_t;
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typedef struct {
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int gpio_bus[24];
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int gpio_clk;
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int clkspeed_hz;
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i2s_parallel_cfg_bits_t bits;
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i2s_parallel_buffer_desc_t *bufa;
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i2s_parallel_buffer_desc_t *bufb;
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int desccount_a;
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int desccount_b;
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lldesc_t * lldesc_a;
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lldesc_t * lldesc_b;
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} i2s_parallel_config_t;
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void i2s_parallel_setup(i2s_dev_t *dev, const i2s_parallel_config_t *cfg);
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void i2s_parallel_setup_without_malloc(i2s_dev_t *dev, const i2s_parallel_config_t *cfg);
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void i2s_parallel_flip_to_buffer(i2s_dev_t *dev, int bufid);
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bool i2s_parallel_is_previous_buffer_free();
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void link_dma_desc(volatile lldesc_t *dmadesc, volatile lldesc_t *prevdmadesc, void *memory, size_t size);
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typedef void (*callback)(void);
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void setShiftCompleteCallback(callback f);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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