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Diffstat (limited to 'drivers/avr/i2c_master.h')
-rwxr-xr-xdrivers/avr/i2c_master.h15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h
index 8686807146..3c7731e8dc 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