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#[cfg_attr(test, macro_use(block))]
extern crate nb;
extern crate embedded_hal;
extern crate embedded_hal_mock as hal;
use hal::i2c::Transaction as I2cTrans;
extern crate ads1x1x;
use ads1x1x::channel;
#[macro_use]
mod common;
use common::{ new_ads1015 as new, destroy_ads1015 as destroy,
DEVICE_ADDRESS as DEV_ADDR, Register, BitFlags as BF, Config };
macro_rules! mux_test {
($name:ident, $CS:ident, $config_bits:expr, $other_CS:ident, $other_config_bits:expr) => {
mod $name {
use embedded_hal::adc::OneShot;
use super::*;
#[test]
fn can_read() {
let default_config = Config::default();
let config = Config::default().with_high(BF::OS).with_high($config_bits);
let transactions = [ I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![default_config.msb(), default_config.lsb()]),
I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]),
I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![config.msb(), config.lsb()]),
I2cTrans::write_read(DEV_ADDR, vec![Register::CONVERSION], vec![0x80, 0x00] ) ];
let mut dev = new(&transactions);
let measurement = block!(dev.read(&mut channel::$CS)).unwrap();
assert_eq!(-2048, measurement);
destroy(dev);
}
#[test]
fn read_then_read_different_triggers_new_measurement() {
let default_config = Config::default();
let config = Config::default().with_high(BF::OS).with_high($config_bits);
let other_config = Config::default().with_high($other_config_bits);
let transactions = [ I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![default_config.msb(), default_config.lsb()]),
I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]),
I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![config.msb(), config.lsb()]),
I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, other_config.msb(), other_config.lsb()]),
I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![other_config.msb(), other_config.lsb()]),
I2cTrans::write_read(DEV_ADDR, vec![Register::CONVERSION], vec![0x80, 0x00] ) ];
let mut dev = new(&transactions);
assert_would_block!(dev.read(&mut channel::$CS));
let measurement = block!(dev.read(&mut channel::$other_CS)).unwrap();
assert_eq!(-2048, measurement);
destroy(dev);
}
}
};
}
mux_test!(diffa0a1, DifferentialA0A1, 0, SingleA0, BF::MUX2);
mux_test!(diffa0a3, DifferentialA0A3, BF::MUX0, SingleA0, BF::MUX2);
mux_test!(diffa1a3, DifferentialA1A3, BF::MUX1, SingleA0, BF::MUX2);
mux_test!(diffa2a3, DifferentialA2A3, BF::MUX1 | BF::MUX0, SingleA0, BF::MUX2);
mux_test!(singlea0, SingleA0, BF::MUX2, DifferentialA0A1, 0);
mux_test!(singlea1, SingleA1, BF::MUX2 | BF::MUX0, SingleA0, BF::MUX2);
mux_test!(singlea2, SingleA2, BF::MUX2 | BF::MUX1, SingleA0, BF::MUX2);
mux_test!(singlea3, SingleA3, BF::MUX2 | BF::MUX1 | BF::MUX0, SingleA0, BF::MUX2);
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