Thomas Kolb
07dd91ecc2
This removes any busy waiting on the I²C from the main loop. Initialization is still done in a blocking way.
22 lines
432 B
C
22 lines
432 B
C
#ifndef I2C_DMA_H
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#define I2C_DMA_H
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#include <stdint.h>
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#include <stddef.h>
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typedef enum
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{
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I2C_DMA_EVT_TRANSFER_COMPLETE,
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I2C_DMA_EVT_ADDR_NAK,
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} i2c_dma_evt_t;
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typedef void (*i2c_dma_callback_t)(const uint8_t *rdata, size_t rlen);
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void i2c_dma_init(i2c_dma_callback_t callback);
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void i2c_dma_loop(void);
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void i2c_dma_start_transfer7(uint32_t i2c, uint8_t addr, const uint8_t *w, size_t wn, size_t rn);
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#endif // I2C_DMA_H
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