44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
#ifndef I2CDRIVER_H
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#define I2CDRIVER_H
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#include <stdint.h>
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#if defined(WIN32)
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#include <windows.h>
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#else
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#define HANDLE int
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#endif
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typedef struct {
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int connected; // Set to 1 when connected
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HANDLE port;
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char model[16],
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serial[9]; // Serial number of USB device
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uint64_t uptime; // time since boot (seconds)
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float voltage_v, // USB voltage (Volts)
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current_ma, // device current (mA)
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temp_celsius; // temperature (C)
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unsigned int mode; // I2C 'I' or bitbang 'B' mode
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unsigned int sda; // SDA state, 0 or 1
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unsigned int scl; // SCL state, 0 or 1
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unsigned int speed; // I2C line speed (in kHz)
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unsigned int pullups; // pullup state (6 bits, 1=enabled)
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unsigned int
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ccitt_crc, // Hardware CCITT CRC
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e_ccitt_crc; // Host CCITT CRC, should match
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} I2CDriver;
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void i2c_connect(I2CDriver *sd, const char* portname);
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void i2c_getstatus(I2CDriver *sd);
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int i2c_write(I2CDriver *sd, const uint8_t bytes[], size_t nn);
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void i2c_read(I2CDriver *sd, uint8_t bytes[], size_t nn);
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int i2c_start(I2CDriver *sd, uint8_t dev, uint8_t op);
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void i2c_stop(I2CDriver *sd);
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void i2c_monitor(I2CDriver *sd, int enable);
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void i2c_capture(I2CDriver *sd);
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int i2c_commands(I2CDriver *sd, int argc, char *argv[]);
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#endif
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