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rp2/machine_i2c: Provide more specific error codes from I2C transfer. 

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2022-01-20 16:43:55 +11:00
parent ce4f8b49ce
commit 7b0a42374e
1 changed files with 10 additions and 1 deletions
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11
ports/rp2/machine_i2c.c
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@ -145,11 +145,20 @@ STATIC int machine_i2c_transfer_single(mp_obj_base_t *self_in, uint16_t addr, si
ret = mp_machine_soft_i2c_transfer(&soft_i2c.base, addr, 1, &bufs, flags);
gpio_set_function(self->scl, GPIO_FUNC_I2C);
gpio_set_function(self->sda, GPIO_FUNC_I2C);
return ret;
} else {
ret = i2c_write_blocking(self->i2c_inst, addr, buf, len, nostop);
}
}
return (ret < 0) ? -MP_EIO : ret;
if (ret < 0) {
if (ret == PICO_ERROR_TIMEOUT) {
return -MP_ETIMEDOUT;
} else {
return -MP_EIO;
}
} else {
return ret;
}
}
STATIC const mp_machine_i2c_p_t machine_i2c_p = {