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extern crate embedded_hal_mock;
use embedded_hal_mock::i2c::Transaction as I2cTrans;
extern crate ads1x1x;
use ads1x1x::{ FullScaleRange, ComparatorMode, ComparatorPolarity,
ComparatorLatching, ComparatorQueue };
#[macro_use]
mod common;
use common::{ new_ads1014, destroy_ads1014,
DEVICE_ADDRESS as DEV_ADDR, Register, BitFlags, Config };
macro_rules! set_value_test {
($name:ident, $method:ident, $value:expr, $reg:ident, $msb:expr, $lsb:expr) => {
#[test]
fn $name() {
let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::$reg, $msb, $lsb]) ];
let mut dev = new_ads1014(&transactions);
dev.$method($value).unwrap();
destroy_ads1014(dev);
}
}
}
macro_rules! config_test {
($name:ident, $method:ident, $value:expr, $config:expr) => {
set_value_test!($name, $method, $value, CONFIG, $config.msb(), $config.lsb());
}
}
mod can_set_comparator_thresholds {
use super::*;
set_value_test!(low, set_low_threshold_raw, 2047, LOW_TH, 0x7F, 0xF0);
set_value_test!(high, set_high_threshold_raw, 2047, HIGH_TH, 0x7F, 0xF0);
}
mod can_set_comparator_mode {
use super::*;
config_test!(traditional, set_comparator_mode, ComparatorMode::Traditional, Config::default().with_low( BitFlags::COMP_MODE));
config_test!(window, set_comparator_mode, ComparatorMode::Window, Config::default().with_high(BitFlags::COMP_MODE));
}
mod can_set_comparator_polarity {
use super::*;
config_test!(low, set_comparator_polarity, ComparatorPolarity::ActiveLow, Config::default().with_low( BitFlags::COMP_POL));
config_test!(high, set_comparator_polarity, ComparatorPolarity::ActiveHigh, Config::default().with_high(BitFlags::COMP_POL));
}
mod can_set_comparator_latching {
use super::*;
config_test!(non, set_comparator_latching, ComparatorLatching::Nonlatching, Config::default().with_low( BitFlags::COMP_LAT));
config_test!(lat, set_comparator_latching, ComparatorLatching::Latching, Config::default().with_high(BitFlags::COMP_LAT));
}
#[test]
fn can_disable_comparator() {
let config = Config::default().with_high(BitFlags::COMP_QUE1).with_high(BitFlags::COMP_QUE0);
let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]) ];
let mut dev = new_ads1014(&transactions);
dev.disable_comparator().unwrap();
destroy_ads1014(dev);
}
mod can_set_comparator_queue {
use super::*;
config_test!(one, set_comparator_queue, ComparatorQueue::One, Config::default().with_low( BitFlags::COMP_QUE1).with_low( BitFlags::COMP_QUE0));
config_test!(two, set_comparator_queue, ComparatorQueue::Two, Config::default().with_low( BitFlags::COMP_QUE1).with_high(BitFlags::COMP_QUE0));
config_test!(four, set_comparator_queue, ComparatorQueue::Four, Config::default().with_high(BitFlags::COMP_QUE1).with_low( BitFlags::COMP_QUE0));
}
#[test]
fn can_use_alert_rdy_pin_as_rdy_does_not_disable_comparator_if_already_disabled() {
let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::HIGH_TH, 0b1000_0000, 0]),
I2cTrans::write(DEV_ADDR, vec![Register::LOW_TH, 0, 0]), ];
let mut dev = new_ads1014(&transactions);
dev.use_alert_rdy_pin_as_ready().unwrap();
destroy_ads1014(dev);
}
#[test]
fn can_use_alert_rdy_pin_as_rdy_disabled_comparator() {
let config = Config::default().with_low(BitFlags::COMP_QUE1).with_low(BitFlags::COMP_QUE0);
let config_disabled_comp = Config::default().with_high(BitFlags::COMP_QUE1).with_high(BitFlags::COMP_QUE0);
let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]),
I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config_disabled_comp.msb(), config_disabled_comp.lsb()]),
I2cTrans::write(DEV_ADDR, vec![Register::HIGH_TH, 0b1000_0000, 0]),
I2cTrans::write(DEV_ADDR, vec![Register::LOW_TH, 0, 0]), ];
let mut dev = new_ads1014(&transactions);
dev.set_comparator_queue(ComparatorQueue::One).unwrap();
dev.use_alert_rdy_pin_as_ready().unwrap();
destroy_ads1014(dev);
}
mod can_set_full_scale_range {
use super::*;
config_test!(fsr6, set_full_scale_range, FullScaleRange::Within6_144V, Config::default().with_low( BitFlags::PGA2).with_low( BitFlags::PGA1).with_low( BitFlags::PGA0));
config_test!(fsr4, set_full_scale_range, FullScaleRange::Within4_096V, Config::default().with_low( BitFlags::PGA2).with_low( BitFlags::PGA1).with_high(BitFlags::PGA0));
config_test!(fsr2, set_full_scale_range, FullScaleRange::Within2_048V, Config::default().with_low( BitFlags::PGA2).with_high(BitFlags::PGA1).with_low( BitFlags::PGA0));
config_test!(fsr1, set_full_scale_range, FullScaleRange::Within1_024V, Config::default().with_low( BitFlags::PGA2).with_high(BitFlags::PGA1).with_high(BitFlags::PGA0));
config_test!(fsr0_5, set_full_scale_range, FullScaleRange::Within0_512V, Config::default().with_high(BitFlags::PGA2).with_low( BitFlags::PGA1).with_low( BitFlags::PGA0));
config_test!(fsr0_2, set_full_scale_range, FullScaleRange::Within0_256V, Config::default().with_high(BitFlags::PGA2).with_low( BitFlags::PGA1).with_high(BitFlags::PGA0));
}
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