diff options
Diffstat (limited to 'drivers/avr/i2c_master.h')
| -rwxr-xr-x | drivers/avr/i2c_master.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h index 868680714..3c7731e8d 100755 --- a/drivers/avr/i2c_master.h +++ b/drivers/avr/i2c_master.h @@ -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 |