diff options
Diffstat (limited to 'src/devices/ads1x1x/mode')
-rw-r--r-- | src/devices/ads1x1x/mode/continuous.rs | 23 | ||||
-rw-r--r-- | src/devices/ads1x1x/mode/mod.rs | 47 | ||||
-rw-r--r-- | src/devices/ads1x1x/mode/oneshot.rs | 66 |
3 files changed, 0 insertions, 136 deletions
diff --git a/src/devices/ads1x1x/mode/continuous.rs b/src/devices/ads1x1x/mode/continuous.rs deleted file mode 100644 index 1472478..0000000 --- a/src/devices/ads1x1x/mode/continuous.rs +++ /dev/null @@ -1,23 +0,0 @@ -//! Common functions - -use core::marker::PhantomData; -use { Ads1x1x, mode, Error, interface, ic }; -use super::super::OperatingMode; - -impl<DI, IC, E> Ads1x1x<DI, IC, mode::Continuous> -where - DI: interface::WriteData<Error = E>, - IC: ic::Resolution -{ - /// Change operating mode to OneShot - pub fn into_one_shot(mut self) -> Result<Ads1x1x<DI, IC, mode::OneShot>, Error<E>> { - self.set_operating_mode(OperatingMode::OneShot)?; - Ok(Ads1x1x { - iface: self.iface, - config: self.config, - a_conversion_was_started: self.a_conversion_was_started, - _ic: PhantomData, - _mode: PhantomData - }) - } -} diff --git a/src/devices/ads1x1x/mode/mod.rs b/src/devices/ads1x1x/mode/mod.rs deleted file mode 100644 index 8e0e012..0000000 --- a/src/devices/ads1x1x/mode/mod.rs +++ /dev/null @@ -1,47 +0,0 @@ -//! Functions for all devices specific to each operating mode - -use ic; -mod oneshot; -mod continuous; - -fn convert_measurement<IC>(register_data: u16) -> i16 -where - IC: ic::Resolution -{ - let value = register_data; - if IC::BITS == ic::ResolutionBits::_12 { - let is_negative = (value & 0b1000_0000_0000_0000) != 0; - if is_negative { - let value = 0b1111_0000_0000_0000 | (value >> 4); - value as i16 - } - else { - (value >> 4) as i16 - } - } - else { - value as i16 - } -} - - -#[cfg(test)] -mod tests { - use super::*; - - #[test] - fn convert_12_bits() { - assert_eq!( 0, convert_measurement::<ic::Ads1013>(0)); - assert_eq!( 2047, convert_measurement::<ic::Ads1013>(0x7FFF)); - assert_eq!(-2048, convert_measurement::<ic::Ads1013>(0x8000)); - assert_eq!( -1, convert_measurement::<ic::Ads1013>(0xFFFF)); - } - - #[test] - fn convert_16_bits() { - assert_eq!( 0, convert_measurement::<ic::Ads1113>(0)); - assert_eq!( 32767, convert_measurement::<ic::Ads1113>(0x7FFF)); - assert_eq!(-32768, convert_measurement::<ic::Ads1113>(0x8000)); - assert_eq!( -1, convert_measurement::<ic::Ads1113>(0xFFFF)); - } -} diff --git a/src/devices/ads1x1x/mode/oneshot.rs b/src/devices/ads1x1x/mode/oneshot.rs deleted file mode 100644 index 7ff9ac9..0000000 --- a/src/devices/ads1x1x/mode/oneshot.rs +++ /dev/null @@ -1,66 +0,0 @@ -//! Common functions - -use core::marker::PhantomData; -use { Ads1x1x, mode, Error, Register, BitFlags, Config, ic }; -use { interface, hal, nb }; -use devices::ads1x1x::OperatingMode; -use devices::channels::ChannelSelection; -use super::convert_measurement; - -impl<DI, IC, E> Ads1x1x<DI, IC, mode::OneShot> -where - DI: interface::WriteData<Error = E> + interface::ReadData<Error = E>, - IC: ic::Resolution -{ - /// Change operating mode to Continuous - pub fn into_continuous(mut self) -> Result<Ads1x1x<DI, IC, mode::Continuous>, Error<E>> { - self.set_operating_mode(OperatingMode::Continuous)?; - Ok(Ads1x1x { - iface: self.iface, - config: self.config, - a_conversion_was_started: self.a_conversion_was_started, - _ic: PhantomData, - _mode: PhantomData - }) - } - - fn is_measurement_in_progress(&mut self) -> Result<bool, Error<E>> { - let config = Config { - bits: self.iface.read_register(Register::CONFIG)? - }; - Ok(!config.is_high(BitFlags::OS)) - } - - fn trigger_measurement(&mut self, config: &Config) -> Result<(), Error<E>> { - let config = config.with_high(BitFlags::OS); - self.iface.write_register(Register::CONFIG, config.bits) - } -} - -impl<DI, IC, E, CH> hal::adc::OneShot<Ads1x1x<DI, IC, mode::OneShot>, i16, CH> for Ads1x1x<DI, IC, mode::OneShot> -where - DI: interface::ReadData<Error = E> + interface::WriteData<Error = E>, - IC: ic::Resolution, - CH: hal::adc::Channel<Ads1x1x<DI, IC, mode::OneShot>, ID = ChannelSelection> -{ - type Error = Error<E>; - - /// Request that the ADC begin a conversion on the specified channel - fn read(&mut self, _channel: &mut CH) -> nb::Result<i16, Self::Error> { - //TODO for devices with MUX select channel, if it is the wrong one, return AlreadyInProgress or WrongChannel error - if self.is_measurement_in_progress().map_err(nb::Error::Other)? { - return Err(nb::Error::WouldBlock); - } - if self.a_conversion_was_started { - // result is ready - let value = self.iface.read_register(Register::CONVERSION).map_err(nb::Error::Other)?; - self.a_conversion_was_started = false; - return Ok(convert_measurement::<IC>(value)); - } - let config = self.config.with_mux_bits(CH::channel()); - self.trigger_measurement(&config).map_err(nb::Error::Other)?; - self.config = config; - self.a_conversion_was_started = true; - Err(nb::Error::WouldBlock) - } -} |