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| author | Timofey Titovets <nefelim4ag@gmail.com> | 2024-10-21 14:19:56 +0200 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2024-10-26 22:06:30 -0400 |
| commit | a4aa2a900267c83d20247f93e6ddb06f63324135 (patch) | |
| tree | 7c0d71f171ebc997e9205f8ed0489017a70878bc /src/avr | |
| parent | 08a85ba869c3232ca7063c737c238ca41e20885e (diff) | |
| download | kutter-a4aa2a900267c83d20247f93e6ddb06f63324135.tar.gz kutter-a4aa2a900267c83d20247f93e6ddb06f63324135.tar.xz kutter-a4aa2a900267c83d20247f93e6ddb06f63324135.zip | |
i2c: handle errors at i2ccmds
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
Diffstat (limited to 'src/avr')
| -rw-r--r-- | src/avr/gpio.h | 4 | ||||
| -rw-r--r-- | src/avr/i2c.c | 9 |
2 files changed, 9 insertions, 4 deletions
diff --git a/src/avr/gpio.h b/src/avr/gpio.h index 9d98ee70..9f28a30a 100644 --- a/src/avr/gpio.h +++ b/src/avr/gpio.h @@ -50,8 +50,8 @@ struct i2c_config { }; struct i2c_config i2c_setup(uint32_t bus, uint32_t rate, uint8_t addr); -void i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write); -void i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg +int i2c_write(struct i2c_config config, uint8_t write_len, uint8_t *write); +int i2c_read(struct i2c_config config, uint8_t reg_len, uint8_t *reg , uint8_t read_len, uint8_t *read); #endif // gpio.h 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; } |