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| author | Jack Humbert <jack.humb@gmail.com> | 2018-06-20 22:26:43 +0200 |
|---|---|---|
| committer | Jack Humbert <jack.humb@gmail.com> | 2018-06-20 22:26:43 +0200 |
| commit | 76e0d23887b8ddc70e9afb30bb7b91e9fec96c35 (patch) | |
| tree | 1f530ddb190188829d1b96e13b348f844506f181 /drivers/avr/i2c_master.h | |
| parent | bad56a4f2b91fc8591f6d33a1710ea0050abcfbf (diff) | |
| download | qmk_firmware-76e0d23887b8ddc70e9afb30bb7b91e9fec96c35.tar.gz qmk_firmware-76e0d23887b8ddc70e9afb30bb7b91e9fec96c35.tar.xz | |
start updating i2c for timeouts
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 |