use crate::{
dependencies::{load_dependencies, LoadedDependencies},
get_version_string, parse_enum_result,
trampoline::split_closure,
EnumerationResult, PicoDriver,
};
use parking_lot::RwLock;
use pico_common::{
ChannelConfig, DownsampleMode, Driver, FromPicoStr, PicoChannel, PicoError, PicoInfo,
PicoRange, PicoResult, PicoStatus, SampleConfig, ToPicoStr,
};
use pico_sys_dynamic::ps2000a::PS2000ALoader;
use std::{pin::Pin, sync::Arc};
pub struct PS2000ADriver {
_dependencies: LoadedDependencies,
bindings: PS2000ALoader,
}
impl std::fmt::Debug for PS2000ADriver {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("PS2000ADriver").finish()
}
}
impl PS2000ADriver {
pub fn new<P>(path: P) -> Result<Self, ::libloading::Error>
where
P: AsRef<::std::ffi::OsStr>,
{
let dependencies = load_dependencies(&path.as_ref());
let bindings = unsafe { PS2000ALoader::new(path)? };
unsafe { bindings.ps2000aApplyFix(0x1ced9168, 0x11e6) };
Ok(PS2000ADriver {
bindings,
_dependencies: dependencies,
})
}
}
impl PicoDriver for PS2000ADriver {
fn get_driver(&self) -> Driver {
Driver::PS2000A
}
#[tracing::instrument(level = "trace", skip(self))]
fn get_version(&self) -> PicoResult<String> {
let raw_version = self.get_unit_info(0, PicoInfo::DRIVER_VERSION)?;
Ok(get_version_string(&raw_version))
}
#[tracing::instrument(level = "trace", skip(self))]
fn get_path(&self) -> PicoResult<Option<String>> {
Ok(Some(self.get_unit_info(0, PicoInfo::DRIVER_PATH)?))
}
#[tracing::instrument(level = "trace", skip(self))]
fn enumerate_units(&self) -> PicoResult<Vec<EnumerationResult>> {
let mut device_count = 0;
let mut serial_buf = "-v".into_pico_i8_string();
serial_buf.extend(vec![0i8; 1000]);
let mut serial_buf_len = serial_buf.len() as i16;
let status = PicoStatus::from(unsafe {
self.bindings.ps2000aEnumerateUnits(
&mut device_count,
serial_buf.as_mut_ptr(),
&mut serial_buf_len,
)
});
match status {
PicoStatus::NOT_FOUND => Ok(Vec::new()),
PicoStatus::OK => Ok(parse_enum_result(&serial_buf, serial_buf_len as usize)),
x => Err(PicoError::from_status(x, "enumerate_units")),
}
}
#[tracing::instrument(level = "trace", skip(self))]
fn open_unit(&self, serial: Option<&str>) -> PicoResult<i16> {
let serial = serial.map(|s| s.into_pico_i8_string());
let mut handle = -1i16;
let status = PicoStatus::from(unsafe {
match serial {
Some(mut serial) => self
.bindings
.ps2000aOpenUnit(&mut handle, serial.as_mut_ptr()),
None => self
.bindings
.ps2000aOpenUnit(&mut handle, std::ptr::null_mut()),
}
});
match status {
PicoStatus::OK => Ok(handle),
x => Err(PicoError::from_status(x, "open_unit")),
}
}
#[tracing::instrument(level = "trace", skip(self))]
fn ping_unit(&self, handle: i16) -> PicoResult<()> {
PicoStatus::from(unsafe { self.bindings.ps2000aPingUnit(handle) })
.to_result((), "ping_unit")
}
#[tracing::instrument(level = "trace", skip(self))]
fn maximum_value(&self, handle: i16) -> PicoResult<i16> {
let mut value = vec![-1i16];
PicoStatus::from(unsafe {
self.bindings
.ps2000aMaximumValue(handle, value.as_mut_ptr())
})
.to_result(value[0], "maximum_value")
}
#[tracing::instrument(level = "trace", skip(self))]
fn close(&self, handle: i16) -> PicoResult<()> {
PicoStatus::from(unsafe { self.bindings.ps2000aCloseUnit(handle) })
.to_result((), "close_unit")
}
#[tracing::instrument(level = "trace", skip(self))]
fn get_unit_info(&self, handle: i16, info_type: PicoInfo) -> PicoResult<String> {
let mut string_buf: Vec<i8> = vec![0i8; 256];
let mut string_buf_out_len = vec![0i16];
let status = PicoStatus::from(unsafe {
self.bindings.ps2000aGetUnitInfo(
handle,
string_buf.as_mut_ptr(),
string_buf.len() as i16,
string_buf_out_len.as_mut_ptr(),
info_type.into(),
)
});
match status {
PicoStatus::OK => Ok(string_buf.from_pico_i8_string(string_buf_out_len[0] as usize)),
x => Err(PicoError::from_status(x, "get_unit_info")),
}
}
#[tracing::instrument(level = "trace", skip(self))]
fn get_channel_ranges(&self, handle: i16, channel: PicoChannel) -> PicoResult<Vec<PicoRange>> {
let mut ranges = vec![0i32; 30];
let mut len = 30i32;
let status = PicoStatus::from(unsafe {
self.bindings.ps2000aGetChannelInformation(
handle,
0,
0,
ranges.as_mut_ptr(),
&mut len,
channel.into(),
)
});
match status {
PicoStatus::OK => Ok(ranges[0..len as usize]
.to_vec()
.iter()
.map(|v| PicoRange::from(*v))
.collect()),
x => Err(PicoError::from_status(x, "get_channel_ranges")),
}
}
#[tracing::instrument(level = "trace", skip(self))]
fn enable_channel(
&self,
handle: i16,
channel: PicoChannel,
config: &ChannelConfig,
) -> PicoResult<()> {
PicoStatus::from(unsafe {
self.bindings.ps2000aSetChannel(
handle,
channel.into(),
1,
config.coupling.into(),
config.range.into(),
config.offset as f32,
)
})
.to_result((), "set_channel")
}
#[tracing::instrument(level = "trace", skip(self))]
fn disable_channel(&self, handle: i16, channel: PicoChannel) -> PicoResult<()> {
PicoStatus::from(unsafe {
self.bindings
.ps2000aSetChannel(handle, channel.into(), 0, 0, 0, 0.0)
})
.to_result((), "set_channel")
}
#[tracing::instrument(level = "trace", skip(self, buffer))]
fn set_data_buffer(
&self,
handle: i16,
channel: PicoChannel,
buffer: Arc<RwLock<Pin<Vec<i16>>>>,
buffer_len: usize,
) -> PicoResult<()> {
let mut buffer = buffer.write();
PicoStatus::from(unsafe {
self.bindings.ps2000aSetDataBuffer(
handle,
channel.into(),
buffer.as_mut_ptr(),
buffer_len as i32,
0,
DownsampleMode::NONE.into(),
)
})
.to_result((), "set_data_buffer")
}
#[tracing::instrument(level = "trace", skip(self))]
fn start_streaming(
&self,
handle: i16,
sample_config: &SampleConfig,
) -> PicoResult<SampleConfig> {
let mut sample_interval = sample_config.interval;
PicoStatus::from(unsafe {
self.bindings.ps2000aRunStreaming(
handle,
&mut sample_interval,
sample_config.units.into(),
0,
0,
(false).into(),
1,
DownsampleMode::NONE.into(),
sample_config.samples_per_second(),
)
})
.to_result(
sample_config.with_interval(sample_interval),
"start_streaming",
)
}
#[tracing::instrument(level = "trace", skip(self, callback))]
fn get_latest_streaming_values<'a>(
&self,
handle: i16,
_channels: &[PicoChannel],
mut callback: Box<dyn FnMut(usize, usize) + 'a>,
) -> PicoResult<()> {
let mut full_closure =
|_: i16, no_of_samples: i32, start_index: u32, _: i16, _: u32, _: i16, _: i16| {
callback(start_index as usize, no_of_samples as usize);
};
let status = PicoStatus::from(unsafe {
let (state, callback) = split_closure(&mut full_closure);
self.bindings
.ps2000aGetStreamingLatestValues(handle, Some(callback), state)
});
match status {
PicoStatus::OK | PicoStatus::BUSY => Ok(()),
x => Err(PicoError::from_status(x, "get_latest_streaming_values")),
}
}
#[tracing::instrument(level = "trace", skip(self))]
fn stop(&self, handle: i16) -> PicoResult<()> {
PicoStatus::from(unsafe { self.bindings.ps2000aStop(handle) }).to_result((), "stop")
}
}