diff options
Diffstat (limited to 'src/avr/i2c.c')
| -rw-r--r-- | src/avr/i2c.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/avr/i2c.c b/src/avr/i2c.c index 658a30a1..e8febfba 100644 --- a/src/avr/i2c.c +++ b/src/avr/i2c.c @@ -11,6 +11,7 @@ #include "gpio.h" // i2c_setup #include "internal.h" // GPIO #include "sched.h" // sched_shutdown +#include "i2ccmds.h" // I2C_BUS_SUCCESS DECL_ENUMERATION("i2c_bus", "twi", 0); @@ -94,7 +95,7 @@ i2c_stop(uint32_t timeout) TWCR = (1<<TWEN) | (1<<TWINT) | (1<<TWSTO); } -void +int i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write) { uint32_t timeout = timer_read_time() + timer_from_us(5000); @@ -104,9 +105,11 @@ i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write) while (write_len--) i2c_send_byte(*write++, timeout); i2c_stop(timeout); + + return I2C_BUS_SUCCESS; } -void +int i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg , uint8_t read_len, uint8_t *read) { @@ -120,4 +123,6 @@ i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg while (read_len--) i2c_receive_byte(read++, timeout, read_len); i2c_stop(timeout); + + return I2C_BUS_SUCCESS; } |