26 lines
614 B
C
26 lines
614 B
C
#ifndef __I2C_H
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#define __I2C_H
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#include <stddef.h>
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#include <stdbool.h>
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#define I2C_WRITE 0
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#define I2C_READ 1
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//higher level functions write registers
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//TODO rename if we end up only using for screen
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void i2c_write_reg(uint8_t device_addr, uint8_t device_reg, uint8_t value);
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void i2c_write_reg_multi(uint8_t device_addr, uint8_t device_reg, size_t len, uint8_t *values);
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//for drivers with weird i2c processes
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void i2c_send(uint8_t byte);
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uint8_t i2c_recv();
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void i2c_stop();
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void i2c_start(uint8_t addr, bool rw);
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uint8_t i2c_read_reg_addr16(uint8_t device, uint16_t addr);
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void i2c_init();
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#endif
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