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start updating i2c for timeouts

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This commit is contained in:
Jack Humbert 2018-06-20 16:26:43 -04:00
parent bad56a4f2b
commit 76e0d23887
2 changed files with 46 additions and 71 deletions
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15
drivers/avr/i2c_master.h
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@ -8,15 +8,20 @@
#define I2C_READ 0x01
#define I2C_WRITE 0x00
typedef i2c_status_t int16_t
#define I2C_STATUS_TIMEOUT (-1)
#define I2C_NO_TIMEOUT 0
void i2c_init(void);
uint8_t i2c_start(uint8_t address);
uint8_t i2c_write(uint8_t data);
uint8_t i2c_read_ack(void);
uint8_t i2c_read_nack(void);
i2c_status_t i2c_start(uint8_t address, uint8_t timeout);
i2c_status_t i2c_write(uint8_t data, uint8_t timeout);
i2c_status_t i2c_read_ack(uint8_t timeout);
i2c_status_t i2c_read_nack(uint8_t timeout);
uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length);
uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
uint8_t i2c_stop(void);
i2c_status_t i2c_stop(uint8_t timeout);
#endif // I2C_MASTER_H