First commitHEADmain

6 files changed, 835 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..0e59e72
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,217 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+
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+[[package]]
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+ "core-foundation-sys",
+ "libc",
+]
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+]
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+ "bitflags 2.7.0",
+ "cfg-if",
+ "core-foundation",
+ "core-foundation-sys",
+ "io-kit-sys",
+ "libudev",
+ "mach2",
+ "nix",
+ "scopeguard",
+ "unescaper",
+ "winapi",
+]
+
+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
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+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
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+ "syn",
+]
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+[[package]]
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+checksum = "c878a167baa8afd137494101a688ef8c67125089ff2249284bd2b5f9bfedb815"
+dependencies = [
+ "thiserror",
+]
+
+[[package]]
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+checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
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+[[package]]
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+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..c798bc3
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "bkp-168xb"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serialport = "4.6.1"
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..570135f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,374 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.
+
diff --git a/examples/power.rs b/examples/power.rs
new file mode 100644
index 0000000..120f424
--- /dev/null
+++ b/examples/power.rs
@@ -0,0 +1,25 @@
+//! Change the supply's output state.
+
+use std::env;
+
+use bkp_168xb::{Output, PowerSupply};
+
+static USAGE: &'static str = "Usage: power on [PORT] | power off [PORT]";
+
+fn main() {
+    let mut args = env::args().skip(1);
+    let output = args
+        .next()
+        .and_then(|arg| match arg.to_lowercase().as_str() {
+            "off" => Some(Output::Off),
+            "on" => Some(Output::On),
+            _ => None,
+        })
+        .expect(USAGE);
+    let port = args.next().expect(USAGE);
+
+    let mut ps = PowerSupply::open(port).unwrap();
+    let (volt, curr) = ps.get_max_voltage_current().unwrap();
+    println!("{volt} {curr}");
+    ps.set_output(output).unwrap()
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..b3ddcd9
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,211 @@
+//! Host-side control interface for B&K Precision 16xB Power Supplies.
+//!
+//! The library optimizes for the 1687B and 1688B models. This library
+//! doe not support two decimal places for current on the 1685B model.
+//!
+//! This library has no affiliation with B&K Precision.
+
+use std::{
+    fmt::{Debug, Display},
+    str::from_utf8,
+};
+
+use serialport::SerialPort;
+pub use serialport::{Error as SerialError, ErrorKind as SerialErrorKind};
+
+pub enum Error {
+    UnexpectedResponse,
+    Parse,
+    Serial(SerialError),
+}
+
+impl From<SerialError> for Error {
+    fn from(value: SerialError) -> Self {
+        Self::Serial(value)
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(value: std::io::Error) -> Self {
+        Self::Serial(value.into())
+    }
+}
+
+impl From<std::num::ParseFloatError> for Error {
+    fn from(_: std::num::ParseFloatError) -> Self {
+        Self::Parse
+    }
+}
+
+impl From<std::str::Utf8Error> for Error {
+    fn from(_: std::str::Utf8Error) -> Self {
+        Self::Parse
+    }
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
+
+/// An interface to the power supply.
+pub struct PowerSupply {
+    port: Box<dyn SerialPort>,
+}
+
+impl PowerSupply {
+    pub fn open(path: impl AsRef<str>) -> Result<Self> {
+        serialport::new(path.as_ref(), 9600)
+            .data_bits(serialport::DataBits::Eight)
+            .parity(serialport::Parity::None)
+            .stop_bits(serialport::StopBits::One)
+            .flow_control(serialport::FlowControl::None)
+            .timeout(std::time::Duration::from_millis(100))
+            .open()
+            .map(|port| PowerSupply { port })
+            .map_err(From::from)
+    }
+
+    fn parse_volts(&mut self) -> Result<f64> {
+        let mut buff = [0u8; 3];
+        self.port.read_exact(&mut buff)?;
+        let volts: f64 = from_utf8(&buff)?.parse()?;
+        Ok(volts / 10.0)
+    }
+
+    fn parse_current(&mut self) -> Result<f64> {
+        let mut buff = [0u8; 3];
+        self.port.read_exact(&mut buff)?;
+        let current: f64 = from_utf8(&buff)?.parse()?;
+        Ok(current / 10.0)
+    }
+
+    fn parse_cr(&mut self) -> Result<()> {
+        let mut buff = [0; 1];
+        self.port.read_exact(&mut buff)?;
+        if buff[0] == b'\r' {
+            Ok(())
+        } else {
+            Err(Error::UnexpectedResponse)
+        }
+    }
+
+    fn parse_ok(&mut self) -> Result<()> {
+        let mut buff = [0; 2];
+        self.port.read_exact(&mut buff)?;
+        if &buff == b"OK" {
+            Ok(())
+        } else {
+            Err(Error::UnexpectedResponse)
+        }
+    }
+
+    fn parse_end(&mut self) -> Result<()> {
+        self.parse_ok()?;
+        self.parse_cr()?;
+        Ok(())
+    }
+
+    fn write_command(&mut self, cmd: &[u8]) -> Result<()> {
+        self.port.write_all(cmd)?;
+        self.port.flush()?;
+        Ok(())
+    }
+
+    /// Set the supply output state.
+    pub fn set_output(&mut self, output: Output) -> Result<()> {
+        self.write_command(match output {
+            Output::Off => b"SOUT1\r",
+            Output::On => b"SOUT0\r",
+        })?;
+        self.parse_end()?;
+        Ok(())
+    }
+
+    /// Read the supply's maximum voltage and current.
+    pub fn max_voltage_current(&mut self) -> Result<(f64, f64)> {
+        self.write_command(b"GMAX\r")?;
+
+        let volts = self.parse_volts()?;
+        let amps = self.parse_current()?;
+        self.parse_end()?;
+
+        Ok((volts, amps))
+    }
+}
+
+/// The power supply output state.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Output {
+    /// Supply off.
+    Off,
+    /// Supply on.
+    On,
+}
+
+impl From<bool> for Output {
+    fn from(value: bool) -> Self {
+        if value {
+            Self::On
+        } else {
+            Self::Off
+        }
+    }
+}
+
+/// Power supply model
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum Model {
+    /// BK Precision 1687B.
+    ///
+    /// 36V - 10A.
+    Bkp1687B,
+}
+
+/// A voltage setting.
+///
+/// This has a 0.1V resolution across all power supply models.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Voltage(
+    u32, /* Internally represented as mV; see GETD command. */
+);
+
+impl Display for Voltage {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {}
+}
+
+impl Voltage {
+    pub const fn from_f64_v(volts: f64) -> Voltage {
+        Voltage((volts * 1000.0f64) as u32)
+    }
+
+    pub const fn from_f32_v(volts: f32) -> Voltage {
+        Voltage((volts * 1000.0f32) as u32)
+    }
+
+    pub const fn from_mv(millivolts: u32) -> Voltage {
+        Voltage(millivolts / 10 * 10)
+    }
+}
+
+/// A current setting.
+///
+/// On the 1687B and 1688B models, this has
+/// a 0.1A resolution. On the 1685B model, this
+/// has a 0.01A resolution.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Current(
+    u32, /* Internally represented as mA; see GETD command. */
+);
+
+impl Current {
+    pub const fn from_f64_a(amps: f64) -> Current {
+        Current((amps * 1000.0f64) as u32)
+    }
+
+    pub const fn from_f32_a(amps: f32) -> Current {
+        Current((amps * 1000.0f32) as u32)
+    }
+
+    pub const fn from_ma(milliamps: u32) -> Current {
+        Current(milliamps)
+    }
+}