diff options
Diffstat (limited to 'drivers/avr/i2c_master.h')
| -rwxr-xr-x | drivers/avr/i2c_master.h | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h index 3c7731e8d..0806d76aa 100755 --- a/drivers/avr/i2c_master.h +++ b/drivers/avr/i2c_master.h @@ -8,20 +8,21 @@ #define I2C_READ 0x01 #define I2C_WRITE 0x00 -typedef i2c_status_t int16_t -#define I2C_STATUS_TIMEOUT (-1) +typedef int16_t i2c_status_t; -#define I2C_NO_TIMEOUT 0 +#define I2C_STATUS_SUCCESS (0) +#define I2C_STATUS_ERROR (-1) +#define I2C_STATUS_TIMEOUT (-2) void i2c_init(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); -i2c_status_t i2c_stop(uint8_t timeout); +i2c_status_t i2c_start(uint8_t address, uint16_t timeout); +i2c_status_t i2c_write(uint8_t data, uint16_t timeout); +int16_t i2c_read_ack(uint16_t timeout); +int16_t i2c_read_nack(uint16_t timeout); +i2c_status_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); +i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout); +i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); +i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout); +i2c_status_t i2c_stop(uint16_t timeout); #endif // I2C_MASTER_H |