feat: add gitea related files

.gitea/workflows/ci.yaml

@@ -0,0 +1,47 @@
+name: CI
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    name: Rust CI
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
+
+      - name: Cache Cargo registry
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+
+      - name: Run tests
+        env:
+          SQLX_OFFLINE: true
+        run: cargo test --workspace --verbose --all
+
+      - name: Run Clippy (linter)
+        run: cargo clippy --all-targets --all-features -- -D warnings
+
+      - name: Run fmt check
+        run: cargo fmt --all -- --check
+
+      - name: Build project
+        run: cargo build --workspace --verbose

.pre-commit-config.yaml

@@ -0,0 +1,41 @@
+repos:
+  - repo: local
+    hooks:
+      # ─────────────── PRE-COMMIT ───────────────
+
+      - id: fmt
+        name: rustfmt
+        entry: cargo fmt -- --check
+        language: system
+        pass_filenames: false
+        stages: [pre-commit]
+
+      - id: clippy
+        name: clippy
+        entry: cargo clippy -- -D warnings
+        language: system
+        pass_filenames: false
+        stages: [pre-commit]
+
+      # ─────────────── PRE-PUSH ───────────────
+
+      - id: test
+        name: cargo test
+        entry: cargo test --all
+        language: system
+        pass_filenames: false
+        stages: [pre-push]
+
+      - id: build
+        name: cargo build release
+        entry: cargo build --release
+        language: system
+        pass_filenames: false
+        stages: [pre-push]
+
+      - id: audit
+        name: cargo audit
+        entry: cargo audit
+        language: system
+        pass_filenames: false
+        stages: [pre-push]

.readme.md

@@ -1 +0,0 @@
-# verify import order

LICENSE

@@ -0,0 +1,73 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
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+
+Copyright 2026 Iceberg
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+components = ["rustfmt", "clippy"]

src/common/validator.rs

@@ -66,78 +66,38 @@ mod tests {
 
     #[test]
     fn validate_range_rejects_out_of_range() {
-        let err = validate_range(11u8, 0..=10, || "bad value".into())
-            .unwrap_err();
+        let err = validate_range(11u8, 0..=10, || "bad value".into()).unwrap_err();
 
         assert!(err.to_string().contains("bad value"));
     }
 
     #[test]
     fn validate_ascii_padded_accepts_ascii_and_padding() {
-        assert!(validate_ascii_padded(
-            b"ABC ",
-            4,
-            b' ',
-            "name",
-        )
-        .is_ok());
+        assert!(validate_ascii_padded(b"ABC ", 4, b' ', "name",).is_ok());
 
-        assert!(validate_ascii_padded(
-            &[b'A', 0, 0, 0],
-            4,
-            0,
-            "password",
-        )
-        .is_ok());
+        assert!(validate_ascii_padded(&[b'A', 0, 0, 0], 4, 0, "password",).is_ok());
     }
 
     #[test]
     fn validate_ascii_padded_rejects_wrong_length() {
-        assert!(validate_ascii_padded(
-            b"ABC",
-            4,
-            b' ',
-            "name",
-        )
-        .is_err());
+        assert!(validate_ascii_padded(b"ABC", 4, b' ', "name",).is_err());
     }
 
     #[test]
     fn validate_ascii_padded_rejects_non_ascii() {
-        assert!(validate_ascii_padded(
-            &[0xFF, b'A', b'B', b'C'],
-            4,
-            b' ',
-            "name",
-        )
-        .is_err());
+        assert!(validate_ascii_padded(&[0xFF, b'A', b'B', b'C'], 4, b' ', "name",).is_err());
     }
 
     #[test]
     fn validate_bitmask_accepts_valid_bits() {
-        assert!(validate_bitmask(
-            0b0101,
-            0b1111,
-            || "".into(),
-        )
-        .is_ok());
+        assert!(validate_bitmask(0b0101, 0b1111, || "".into(),).is_ok());
 
-        assert!(validate_bitmask(
-            0,
-            0b1111,
-            || "".into(),
-        )
-        .is_ok());
+        assert!(validate_bitmask(0, 0b1111, || "".into(),).is_ok());
     }
 
     #[test]
     fn validate_bitmask_rejects_invalid_bits() {
-        let err = validate_bitmask(
-            0b10000,
-            0b01111,
-            || "invalid mask".into(),
-        )
-        .unwrap_err();
+        let err = validate_bitmask(0b10000, 0b01111, || "invalid mask".into()).unwrap_err();
 
         assert!(err.to_string().contains("invalid mask"));
     }

src/dsp408/client/dsp408.rs

@@ -14,14 +14,10 @@ use crate::{
     dsp408::{
         mapper::{
             self,
-            constants::{PRESET_INDEX_MAX, CONFIG_CHUNK_INDEX_MAX},
+            constants::{CONFIG_CHUNK_INDEX_MAX, PRESET_INDEX_MAX},
             response::map_response,
         },
-        protocol::{
-            commands,
-            config::decode_config,
-            frame::extract_frame,
-        },
+        protocol::{commands, config::decode_config, frame::extract_frame},
         types,
     },
 };
@@ -44,33 +40,21 @@ pub struct DSP408 {
 }
 
 impl DSP408 {
-
-    pub fn new(
-        host: IpAddr,
-        port: u16,
-        device_id: u8,
-    ) -> Result<Self, DSPError> {
-
+    pub fn new(host: IpAddr, port: u16, device_id: u8) -> Result<Self, DSPError> {
         if matches!(host, IpAddr::V6(_)) {
-            return Err(DSPError::InvalidHost(
-                "DSP doesn't support IPv6"
-            ));
+            return Err(DSPError::InvalidHost("DSP doesn't support IPv6"));
         }
 
         if port == 0 {
-            return Err(DSPError::InvalidPort(
-                "Port must be between 1 and 65535"
-            ));
+            return Err(DSPError::InvalidPort("Port must be between 1 and 65535"));
         }
 
-
         if device_id == 0 || device_id > 254 {
             return Err(DSPError::InvalidDeviceId(
-                "Device ID must be between 1 and 254"
+                "Device ID must be between 1 and 254",
             ));
         }
 
-
         Ok(Self {
             connection: types::DeviceConnection {
                 host,
@@ -88,83 +72,43 @@ impl DSP408 {
         })
     }
 
-    fn send_raw(
-        &mut self,
-        data: &[u8],
-    ) -> Result<(), DSPError> {
-
-
-        let _guard =
-            self.lock.lock().unwrap();
-
-
-        let socket =
-            self.socket
-                .as_mut()
-                .ok_or(
-                    DSPError::NotConnected
-                )?;
+    fn send_raw(&mut self, data: &[u8]) -> Result<(), DSPError> {
+        let _guard = self.lock.lock().unwrap();
 
+        let socket = self.socket.as_mut().ok_or(DSPError::NotConnected)?;
 
         socket.write_all(data)?;
 
         Ok(())
     }
 
-    fn recv_raw(
-        &mut self
-    ) -> Result<Vec<u8>, DSPError> {
-
-        let socket =
-            self.socket
-                .as_mut()
-                .ok_or(
-                    DSPError::NotConnected
-                )?;
-
-
-        let mut buffer =
-            vec![0u8; RECV_BUFSIZE];
+    fn recv_raw(&mut self) -> Result<Vec<u8>, DSPError> {
+        let socket = self.socket.as_mut().ok_or(DSPError::NotConnected)?;
 
+        let mut buffer = vec![0u8; RECV_BUFSIZE];
 
         match socket.read(&mut buffer) {
-
-            Ok(0) =>
-                Err(DSPError::ConnectionClosed),
+            Ok(0) => Err(DSPError::ConnectionClosed),
 
             Ok(size) => {
                 buffer.truncate(size);
                 Ok(buffer)
-            },
+            }
 
-            Err(e)
-                if e.kind()
-                ==
-                std::io::ErrorKind::TimedOut =>
-            {
-                Err(DSPError::Timeout)
-            },
+            Err(e) if e.kind() == std::io::ErrorKind::TimedOut => Err(DSPError::Timeout),
 
-            Err(e) =>
-                Err(DSPError::Io(e)),
+            Err(e) => Err(DSPError::Io(e)),
         }
     }
 
-    pub fn send_recv(
-        &mut self,
-        command: &[u8],
-    ) -> Result<types::DeviceResponseType, DSPError> {
-
+    pub fn send_recv(&mut self, command: &[u8]) -> Result<types::DeviceResponseType, DSPError> {
         self.send_raw(command)?;
 
-        let raw =
-            self.recv_raw()?;
+        let raw = self.recv_raw()?;
 
-        let frame =
-            extract_frame(&raw)?;
+        let frame = extract_frame(&raw)?;
 
-        let response =
-            map_response(&frame)?;
+        let response = map_response(&frame)?;
 
         Ok(response)
     }
@@ -174,46 +118,29 @@ impl DSP408 {
     }
 
     pub fn state(&self) -> Result<&types::DSPState, DSPError> {
-        self.state
-            .as_ref()
-            .ok_or(DSPError::NotConnected)
+        self.state.as_ref().ok_or(DSPError::NotConnected)
     }
 
     fn state_mut(&mut self) -> Result<&mut types::DSPState, DSPError> {
-        self.state
-            .as_mut()
-            .ok_or(DSPError::NotConnected)
+        self.state.as_mut().ok_or(DSPError::NotConnected)
     }
 
     // ---------- Commands ----------
     // Command `0x10`
     pub fn connect(&mut self) -> Result<(), DSPError> {
-
-        let key = (
-            self.connection.host,
-            self.connection.device_id
-        );
+        let key = (self.connection.host, self.connection.device_id);
 
         {
-            let map = instances()
-                .lock()
-                .unwrap();
+            let map = instances().lock().unwrap();
 
             if map.contains_key(&key) {
                 return Err(DSPError::AlreadyConnected);
             }
         }
 
-        let addr = SocketAddr::new(
-            self.connection.host,
-            self.connection.port
-        );
+        let addr = SocketAddr::new(self.connection.host, self.connection.port);
 
-        let stream =
-            TcpStream::connect_timeout(
-                &addr,
-                SOCKET_TIMEOUT
-            )?;
+        let stream = TcpStream::connect_timeout(&addr, SOCKET_TIMEOUT)?;
 
         stream.set_read_timeout(Some(SOCKET_TIMEOUT))?;
 
@@ -226,18 +153,12 @@ impl DSP408 {
         let start = std::time::Instant::now();
 
         while start.elapsed() < SOCKET_TIMEOUT {
-
             let raw = self.recv_raw()?;
             let frame = extract_frame(&raw)?;
             let response = map_response(&frame)?;
 
             if matches!(response, types::DeviceResponseType::HandshakeAck(_)) {
-
-                instances()
-                    .lock()
-                    .unwrap()
-                    .insert(key, ());
-
+                instances().lock().unwrap().insert(key, ());
 
                 self.connected = true;
 
@@ -248,9 +169,7 @@ impl DSP408 {
                 let mut preset_names = Vec::with_capacity(PRESET_INDEX_MAX);
 
                 for i in 0..PRESET_INDEX_MAX {
-                    preset_names.push(
-                        self.get_preset_name(i + 1)?
-                    );
+                    preset_names.push(self.get_preset_name(i + 1)?);
                 }
 
                 let state = self.read_config_state()?;
@@ -277,31 +196,15 @@ impl DSP408 {
 
     // Command `0x11`
     pub fn disconnect(&mut self) {
-
-        let key = (
-            self.connection.host,
-            self.connection.device_id
-        );
+        let key = (self.connection.host, self.connection.device_id);
 
         if let Some(mut socket) = self.socket.take() {
+            let _ = socket.write_all(&commands::build_disconnect());
 
-            let _ =
-                socket.write_all(
-                    &commands::build_disconnect()
-                );
-
-            let _ =
-                socket.shutdown(
-                    std::net::Shutdown::Both
-                );
+            let _ = socket.shutdown(std::net::Shutdown::Both);
         }
 
-
-        instances()
-            .lock()
-            .unwrap()
-            .remove(&key);
-
+        instances().lock().unwrap().remove(&key);
 
         self.connected = false;
     }
@@ -428,7 +331,7 @@ impl DSP408 {
 
                 if !self.request_acknowledgement()? {
                     return Err(DSPError::OperationFailed(
-                        "Store Configuration fails".into()
+                        "Store Configuration fails".into(),
                     ));
                 }
 
@@ -470,9 +373,7 @@ impl DSP408 {
         let resp = self.send_recv(&request)?;
 
         match resp {
-            types::DeviceResponseType::Acknowledgement(ack) => {
-                Ok(ack.success)
-            }
+            types::DeviceResponseType::Acknowledgement(ack) => Ok(ack.success),
             other => Err(DSPError::UnexpectedResponse(format!(
                 "Expected Acknowledgement, got {:?}",
                 other
@@ -516,9 +417,7 @@ impl DSP408 {
         let resp = self.send_recv(&request)?;
 
         match resp {
-            types::DeviceResponseType::ConfigChunk(config) => {
-                Ok(config)
-            }
+            types::DeviceResponseType::ConfigChunk(config) => Ok(config),
             other => Err(DSPError::UnexpectedResponse(format!(
                 "Expected ConfigChunk, got {:?}",
                 other
@@ -549,20 +448,14 @@ impl DSP408 {
         channel_1: types::Channel,
         channel_2: types::Channel,
     ) -> Result<bool, DSPError> {
-
         let (raw_channel_1, raw_channel_2) = mapper::copy_channel_to_raw(channel_1, channel_2)?;
 
-        let request = commands::build_copy_channel(
-            raw_channel_1,
-            raw_channel_2,
-        )?;
+        let request = commands::build_copy_channel(raw_channel_1, raw_channel_2)?;
 
         let resp = self.send_recv(&request)?;
 
         match resp {
-            types::DeviceResponseType::Acknowledgement(ack) => {
-                Ok(ack.success)
-            }
+            types::DeviceResponseType::Acknowledgement(ack) => Ok(ack.success),
             other => Err(DSPError::UnexpectedResponse(format!(
                 "Expected Acknowledgement, got {:?}",
                 other
@@ -647,7 +540,6 @@ impl DSP408 {
         knee: u16,
         threshold: f32,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::output_channel_to_raw(channel)?;
         let raw_ratio = mapper::ratio_to_raw(ratio)?;
         let raw_attack = mapper::attack_ms_to_raw(attack)?;
@@ -674,16 +566,13 @@ impl DSP408 {
 
                 let state = self.state_mut()?;
 
-                state
-                    .current_config
-                    .output_state_mut(channel)
-                    .compressor = types::Compressor {
-                        threshold,
-                        ratio,
-                        attack,
-                        release,
-                        knee,
-                    };
+                state.current_config.output_state_mut(channel).compressor = types::Compressor {
+                    threshold,
+                    ratio,
+                    attack,
+                    release,
+                    knee,
+                };
 
                 Ok(true)
             }
@@ -701,16 +590,11 @@ impl DSP408 {
         freq: f32,
         filter_type: types::CrossoverFilter,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_freq = mapper::frequency_hz_to_raw(freq)?;
         let raw_filter = mapper::crossover_filter_to_raw(filter_type)?;
 
-        let request = commands::build_low_pass(
-            raw_channel,
-            raw_freq,
-            raw_filter,
-        )?;
+        let request = commands::build_low_pass(raw_channel, raw_freq, raw_filter)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -729,9 +613,9 @@ impl DSP408 {
                             .input_state_mut(input)
                             .crossover
                             .low_pass = types::Crossover {
-                                frequency: freq,
-                                slope: filter_type,
-                            };
+                            frequency: freq,
+                            slope: filter_type,
+                        };
                     }
 
                     types::Channel::Output(output) => {
@@ -740,9 +624,9 @@ impl DSP408 {
                             .output_state_mut(output)
                             .crossover
                             .low_pass = types::Crossover {
-                                frequency: freq,
-                                slope: filter_type,
-                            };
+                            frequency: freq,
+                            slope: filter_type,
+                        };
                     }
                 }
 
@@ -763,16 +647,11 @@ impl DSP408 {
         freq: f32,
         filter_type: types::CrossoverFilter,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_freq = mapper::frequency_hz_to_raw(freq)?;
         let raw_filter = mapper::crossover_filter_to_raw(filter_type)?;
 
-        let request = commands::build_high_pass(
-            raw_channel,
-            raw_freq,
-            raw_filter,
-        )?;
+        let request = commands::build_high_pass(raw_channel, raw_freq, raw_filter)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -791,9 +670,9 @@ impl DSP408 {
                             .input_state_mut(input)
                             .crossover
                             .high_pass = types::Crossover {
-                                frequency: freq,
-                                slope: filter_type,
-                            };
+                            frequency: freq,
+                            slope: filter_type,
+                        };
                     }
 
                     types::Channel::Output(output) => {
@@ -802,9 +681,9 @@ impl DSP408 {
                             .output_state_mut(output)
                             .crossover
                             .high_pass = types::Crossover {
-                                frequency: freq,
-                                slope: filter_type,
-                            };
+                            frequency: freq,
+                            slope: filter_type,
+                        };
                     }
                 }
 
@@ -830,7 +709,6 @@ impl DSP408 {
         filter_type: types::PEQFilter,
         bypass: bool,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_band = mapper::peq_band_to_raw(band, channel)?;
         let raw_gain = mapper::eq_gain_db_to_raw(gain_db)?;
@@ -868,11 +746,8 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state
-                            .current_config
-                            .input_state_mut(input)
-                            .peq_chain
-                            .bands[band as usize] = peq;
+                        state.current_config.input_state_mut(input).peq_chain.bands
+                            [band as usize] = peq;
                     }
 
                     types::Channel::Output(output) => {
@@ -895,19 +770,11 @@ impl DSP408 {
     }
 
     // Command `0x34` (Set Gain)
-    pub fn set_channel_gain(
-        &mut self,
-        channel: types::Channel,
-        db: f32,
-    ) -> Result<bool, DSPError> {
-
+    pub fn set_channel_gain(&mut self, channel: types::Channel, db: f32) -> Result<bool, DSPError> {
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_db = mapper::gain_db_to_raw(db)?;
 
-        let request = commands::build_gain(
-            raw_channel,
-            raw_db,
-        )?;
+        let request = commands::build_gain(raw_channel, raw_db)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -921,17 +788,11 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state
-                            .current_config
-                            .input_state_mut(input)
-                            .gain = db;
+                        state.current_config.input_state_mut(input).gain = db;
                     }
 
                     types::Channel::Output(output) => {
-                        state
-                            .current_config
-                            .output_state_mut(output)
-                            .gain = db;
+                        state.current_config.output_state_mut(output).gain = db;
                     }
                 }
 
@@ -946,18 +807,10 @@ impl DSP408 {
     }
 
     // Command `0x35` (Set Mute)
-    pub fn set_mute(
-        &mut self,
-        channel: types::Channel,
-        muted: bool,
-    ) -> Result<bool, DSPError> {
-
+    pub fn set_mute(&mut self, channel: types::Channel, muted: bool) -> Result<bool, DSPError> {
         let raw_channel = mapper::channel_to_raw(channel)?;
 
-        let request = commands::build_mute(
-            raw_channel,
-            muted as u8,
-        )?;
+        let request = commands::build_mute(raw_channel, muted as u8)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -971,17 +824,11 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state
-                            .current_config
-                            .input_state_mut(input)
-                            .mute = muted;
+                        state.current_config.input_state_mut(input).mute = muted;
                     }
 
                     types::Channel::Output(output) => {
-                        state
-                            .current_config
-                            .output_state_mut(output)
-                            .mute = muted;
+                        state.current_config.output_state_mut(output).mute = muted;
                     }
                 }
 
@@ -1001,13 +848,9 @@ impl DSP408 {
         channel: types::Channel,
         inverted: bool,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
 
-        let request = commands::build_inverted_gain(
-            raw_channel,
-            inverted as u8,
-        )?;
+        let request = commands::build_inverted_gain(raw_channel, inverted as u8)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1021,17 +864,11 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state
-                            .current_config
-                            .input_state_mut(input)
-                            .phase_inverted = inverted;
+                        state.current_config.input_state_mut(input).phase_inverted = inverted;
                     }
 
                     types::Channel::Output(output) => {
-                        state
-                            .current_config
-                            .output_state_mut(output)
-                            .phase_inverted = inverted;
+                        state.current_config.output_state_mut(output).phase_inverted = inverted;
                     }
                 }
 
@@ -1052,14 +889,10 @@ impl DSP408 {
         delay: f32,
         unit: types::DelayUnit,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_delay = mapper::delay_to_raw(delay, unit)?;
 
-        let request = commands::build_set_delay(
-            raw_channel,
-            raw_delay,
-        )?;
+        let request = commands::build_set_delay(raw_channel, raw_delay)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1075,17 +908,11 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state
-                            .current_config
-                            .input_state_mut(input)
-                            .delay = delay;
+                        state.current_config.input_state_mut(input).delay = delay;
                     }
 
                     types::Channel::Output(output) => {
-                        state
-                            .current_config
-                            .output_state_mut(output)
-                            .delay = delay;
+                        state.current_config.output_state_mut(output).delay = delay;
                     }
                 }
 
@@ -1100,18 +927,11 @@ impl DSP408 {
     }
 
     // Command `0x39` (Set Input Source)
-    pub fn set_input_source(
-        &mut self,
-        input_source: types::InputSource,
-    ) -> Result<bool, DSPError> {
-
+    pub fn set_input_source(&mut self, input_source: types::InputSource) -> Result<bool, DSPError> {
         let raw_source = mapper::input_source_to_raw(input_source.r#type)?;
         let raw_frequency = mapper::frequency_value_to_raw(input_source.frequency)?;
 
-        let request = commands::build_set_input_source(
-            raw_source,
-            raw_frequency,
-        )?;
+        let request = commands::build_set_input_source(raw_source, raw_frequency)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1140,14 +960,10 @@ impl DSP408 {
         output: types::OutputChannel,
         inputs: Vec<types::InputChannel>,
     ) -> Result<bool, DSPError> {
-
         let raw_output = mapper::output_channel_to_raw(output)?;
         let raw_inputs = mapper::matrix_to_raw(&inputs)?;
 
-        let request = commands::build_matrix_routing(
-            raw_output,
-            raw_inputs,
-        )?;
+        let request = commands::build_matrix_routing(raw_output, raw_inputs)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1181,7 +997,6 @@ impl DSP408 {
         source: types::Channel,
         destinations: Vec<types::Channel>,
     ) -> Result<bool, DSPError> {
-
         let raw_source = mapper::channel_to_raw(source)?;
         let bitmask = mapper::link_channels_to_raw(source, &destinations)?;
 
@@ -1197,10 +1012,7 @@ impl DSP408 {
         }
 
         // Link source
-        let request = commands::build_link_channel(
-            raw_source,
-            bitmask,
-        )?;
+        let request = commands::build_link_channel(raw_source, bitmask)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1219,7 +1031,6 @@ impl DSP408 {
             }
         }
 
-
         // Clear destination links
         for destination in &destinations {
             if *destination == source {
@@ -1228,10 +1039,7 @@ impl DSP408 {
 
             let raw_destination = mapper::channel_to_raw(*destination)?;
 
-            let request = commands::build_link_channel(
-                raw_destination,
-                0x00,
-            )?;
+            let request = commands::build_link_channel(raw_destination, 0x00)?;
 
             let resp = self.send_recv(&request)?;
 
@@ -1268,13 +1076,9 @@ impl DSP408 {
         channel: types::Channel,
         bypass: bool,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
 
-        let request = commands::build_bypass_peq(
-            raw_channel,
-            bypass as u8,
-        )?;
+        let request = commands::build_bypass_peq(raw_channel, bypass as u8)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1288,13 +1092,13 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state.current_config.input_state_mut(input)
-                            .peq_chain
-                            .bypass = bypass;
+                        state.current_config.input_state_mut(input).peq_chain.bypass = bypass;
                     }
 
                     types::Channel::Output(output) => {
-                        state.current_config.output_state_mut(output)
+                        state
+                            .current_config
+                            .output_state_mut(output)
                             .peq_chain
                             .bypass = bypass;
                     }
@@ -1316,14 +1120,10 @@ impl DSP408 {
         channel: types::Channel,
         name: &str,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::channel_to_raw(channel)?;
         let raw_name = mapper::channel_name_to_raw(name)?;
 
-        let request = commands::build_store_channel_name(
-            raw_channel,
-            &raw_name,
-        )?;
+        let request = commands::build_store_channel_name(raw_channel, &raw_name)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1337,13 +1137,11 @@ impl DSP408 {
 
                 match channel {
                     types::Channel::Input(input) => {
-                        state.current_config.input_state_mut(input)
-                            .name = name.to_string();
+                        state.current_config.input_state_mut(input).name = name.to_string();
                     }
 
                     types::Channel::Output(output) => {
-                        state.current_config.output_state_mut(output)
-                            .name = name.to_string();
+                        state.current_config.output_state_mut(output).name = name.to_string();
                     }
                 }
 
@@ -1366,7 +1164,6 @@ impl DSP408 {
         hold: u16,
         release: u16,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::input_channel_to_raw(channel)?;
         let raw_threshold = mapper::gate_threshold_db_to_raw(threshold)?;
         let raw_attack = mapper::attack_ms_to_raw(attack)?;
@@ -1391,15 +1188,12 @@ impl DSP408 {
 
                 let state = self.state_mut()?;
 
-                state
-                    .current_config
-                    .input_state_mut(channel)
-                    .gate = types::Gate {
-                        attack,
-                        release,
-                        hold,
-                        threshold,
-                    };
+                state.current_config.input_state_mut(channel).gate = types::Gate {
+                    attack,
+                    release,
+                    hold,
+                    threshold,
+                };
 
                 Ok(true)
             }
@@ -1419,18 +1213,13 @@ impl DSP408 {
         attack: u16,
         release: u16,
     ) -> Result<bool, DSPError> {
-
         let raw_channel = mapper::output_channel_to_raw(channel)?;
         let raw_threshold = mapper::threshold_db_to_raw(threshold)?;
         let raw_attack = mapper::attack_ms_to_raw(attack)?;
         let raw_release = mapper::release_ms_to_raw(release)?;
 
-        let request = commands::build_set_limiter(
-            raw_channel,
-            raw_threshold,
-            raw_attack,
-            raw_release,
-        )?;
+        let request =
+            commands::build_set_limiter(raw_channel, raw_threshold, raw_attack, raw_release)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1442,14 +1231,11 @@ impl DSP408 {
 
                 let state = self.state_mut()?;
 
-                state
-                    .current_config
-                    .output_state_mut(channel)
-                    .limiter = types::Limiter {
-                        threshold,
-                        attack,
-                        release,
-                    };
+                state.current_config.output_state_mut(channel).limiter = types::Limiter {
+                    threshold,
+                    attack,
+                    release,
+                };
 
                 Ok(true)
             }
@@ -1462,10 +1248,7 @@ impl DSP408 {
     }
 
     // Command `0x40` (Get Level Meters)
-    pub fn get_meter_levels(
-        &mut self,
-    ) -> Result<types::Meters, DSPError> {
-
+    pub fn get_meter_levels(&mut self) -> Result<types::Meters, DSPError> {
         let request = commands::build_get_meter_levels();
 
         let resp = self.send_recv(&request)?;
@@ -1487,16 +1270,11 @@ impl DSP408 {
         output_channel: types::OutputChannel,
         gain: f32,
     ) -> Result<bool, DSPError> {
-
         let raw_input_channel = mapper::input_channel_to_raw(input_channel)?;
         let raw_output_channel = mapper::output_channel_to_raw(output_channel)?;
         let raw_gain = mapper::matrix_gain_db_to_raw(gain)?;
 
-        let request = commands::build_matrix_gain(
-            raw_input_channel,
-            raw_output_channel,
-            raw_gain,
-        )?;
+        let request = commands::build_matrix_gain(raw_input_channel, raw_output_channel, raw_gain)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1510,9 +1288,11 @@ impl DSP408 {
 
                 let index = types::InputChannel::iter()
                     .position(|x| x == input_channel)
-                    .ok_or_else(|| DSPError::Validation(ValidationError::Value(
-                        "Invalid input channel".to_string()
-                    )))?;
+                    .ok_or_else(|| {
+                        DSPError::Validation(ValidationError::Value(
+                            "Invalid input channel".to_string(),
+                        ))
+                    })?;
 
                 state
                     .current_config
@@ -1537,16 +1317,12 @@ impl DSP408 {
         frequency_band: types::DiscreteFrequency,
         gain: f32,
     ) -> Result<bool, DSPError> {
-
         let raw_input_channel = mapper::input_channel_to_raw(input_channel)?;
         let raw_frequency_band = mapper::frequency_value_to_raw(frequency_band)?;
         let raw_gain = mapper::eq_gain_db_to_raw(gain)?;
 
-        let request = commands::build_set_geq_band(
-            raw_input_channel,
-            raw_frequency_band,
-            raw_gain,
-        )?;
+        let request =
+            commands::build_set_geq_band(raw_input_channel, raw_frequency_band, raw_gain)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1560,17 +1336,19 @@ impl DSP408 {
 
                 let index = types::DiscreteFrequency::iter()
                     .position(|x| x == frequency_band)
-                    .ok_or_else(|| DSPError::Validation(ValidationError::Value(
-                        "Invalid GEQ frequency band".to_string()
-                    )))?;
+                    .ok_or_else(|| {
+                        DSPError::Validation(ValidationError::Value(
+                            "Invalid GEQ frequency band".to_string(),
+                        ))
+                    })?;
 
                 state
                     .current_config
                     .input_state_mut(input_channel)
                     .geq
                     .gains[index] = gain;
-                    Ok(true)
-                }
+                Ok(true)
+            }
 
             other => Err(DSPError::UnexpectedResponse(format!(
                 "Expected Acknowledgement, got {:?}",
@@ -1585,13 +1363,9 @@ impl DSP408 {
         input_channel: types::InputChannel,
         bypass: bool,
     ) -> Result<bool, DSPError> {
-
         let raw_input_channel = mapper::input_channel_to_raw(input_channel)?;
 
-        let request = commands::build_set_geq_bypass(
-            raw_input_channel,
-            bypass as u8,
-        )?;
+        let request = commands::build_set_geq_bypass(raw_input_channel, bypass as u8)?;
 
         let resp = self.send_recv(&request)?;
 
@@ -1630,14 +1404,11 @@ impl DSP408 {
         let config = decode_config(&raw)?;
 
         if !self.request_acknowledgement()? {
-            return Err(DSPError::OperationFailed(
-                "DSP initialization".into()
-            ));
+            return Err(DSPError::OperationFailed("DSP initialization".into()));
         }
 
         Ok(config)
     }
-
 }
 
 impl Drop for DSP408 {

src/dsp408/mapper/channel.rs

@@ -2,30 +2,16 @@ use strum::IntoEnumIterator;
 
 use crate::{
     common::{
-        errors::{
-            DecodingError,
-            MapperError,
-            ValidationError,
-        },
-        validator::{
-            validate_ascii_padded,
-            validate_range,
-        },
+        errors::{DecodingError, MapperError, ValidationError},
+        validator::{validate_ascii_padded, validate_range},
     },
     dsp408::{
-        protocol::{
-            constants as protocol_constants,
-            validators,
-        },
+        protocol::{constants as protocol_constants, validators},
         types,
     },
 };
 
-use super::{
-    constants as mapper_constants,
-    decode_ascii,
-    encode_ascii,
-};
+use super::{constants as mapper_constants, decode_ascii, encode_ascii};
 
 // ------ CHANNEL ------
 
@@ -71,14 +57,12 @@ pub fn channel_to_raw(channel: types::Channel) -> Result<u8, MapperError> {
 pub fn raw_to_channel(value: u8) -> Result<types::Channel, MapperError> {
     validators::validate_raw_channel(value)?;
 
-    raw_to_channel_value(value)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown channel value: {:#04x}", value)
-                )
-            )
-        })
+    raw_to_channel_value(value).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown channel value: {:#04x}",
+            value
+        )))
+    })
 }
 
 pub fn input_channel_to_raw(channel: types::InputChannel) -> Result<u8, MapperError> {
@@ -99,7 +83,11 @@ pub fn channel_name_to_raw(name: &str) -> Result<Vec<u8>, MapperError> {
         "Channel name",
     )?;
 
-    Ok(encode_ascii(name, protocol_constants::CHANNEL_NAME_LENGTH, protocol_constants::CHANNEL_NAME_PADDING)?)
+    Ok(encode_ascii(
+        name,
+        protocol_constants::CHANNEL_NAME_LENGTH,
+        protocol_constants::CHANNEL_NAME_PADDING,
+    )?)
 }
 
 pub fn raw_to_channel_name(raw_name: &[u8]) -> Result<String, MapperError> {
@@ -111,11 +99,9 @@ pub fn raw_to_channel_name(raw_name: &[u8]) -> Result<String, MapperError> {
 // ------ ATTACK ------
 
 pub fn attack_ms_to_raw(value: u16) -> Result<u16, MapperError> {
-    validate_range(
-        value,
-        mapper_constants::ATTACK_MS_RANGE,
-        || format!("Invalid attack: {:#06x}", value),
-    )?;
+    validate_range(value, mapper_constants::ATTACK_MS_RANGE, || {
+        format!("Invalid attack: {:#06x}", value)
+    })?;
 
     Ok(value - 1)
 }
@@ -129,11 +115,9 @@ pub fn raw_to_attack_ms(value: u16) -> Result<u16, MapperError> {
 // ------ RELEASE ------
 
 pub fn release_ms_to_raw(value: u16) -> Result<u16, MapperError> {
-    validate_range(
-        value,
-        mapper_constants::RELEASE_MS_RANGE,
-        || format!("Invalid release: {:#06x}", value),
-    )?;
+    validate_range(value, mapper_constants::RELEASE_MS_RANGE, || {
+        format!("Invalid release: {:#06x}", value)
+    })?;
 
     Ok(value - 1)
 }
@@ -147,11 +131,9 @@ pub fn raw_to_release_ms(value: u16) -> Result<u16, MapperError> {
 // ------ HOLD ------
 
 pub fn hold_ms_to_raw(hold: u16) -> Result<u16, MapperError> {
-    validate_range(
-        hold,
-        mapper_constants::HOLD_MS_RANGE,
-        || format!("Invalid hold: {:#06x}", hold),
-    )?;
+    validate_range(hold, mapper_constants::HOLD_MS_RANGE, || {
+        format!("Invalid hold: {:#06x}", hold)
+    })?;
 
     Ok(hold - 1)
 }
@@ -165,11 +147,9 @@ pub fn raw_to_hold_ms(hold: u16) -> Result<u16, MapperError> {
 // ------ GATE THRESHOLD ------
 
 pub fn gate_threshold_db_to_raw(db: f32) -> Result<u16, MapperError> {
-    validate_range(
-        db,
-        mapper_constants::GATE_THRESHOLD_DB_RANGE,
-        || format!("Invalid gate threshold: {db}"),
-    )?;
+    validate_range(db, mapper_constants::GATE_THRESHOLD_DB_RANGE, || {
+        format!("Invalid gate threshold: {db}")
+    })?;
 
     let db = (db * 2.0).round() / 2.0;
 
@@ -185,13 +165,12 @@ pub fn raw_to_gate_threshold_db(value: u16) -> Result<f32, MapperError> {
 // ------ EQ GAIN ------
 
 fn eq_gain_raw_steps() -> f32 {
-    (*protocol_constants::EQ_GAIN_RAW_RANGE.end()
-        - *protocol_constants::EQ_GAIN_RAW_RANGE.start()) as f32
+    (*protocol_constants::EQ_GAIN_RAW_RANGE.end() - *protocol_constants::EQ_GAIN_RAW_RANGE.start())
+        as f32
 }
 
 fn eq_gain_step_db() -> f32 {
-    (*mapper_constants::EQ_GAIN_DB_RANGE.end()
-        - *mapper_constants::EQ_GAIN_DB_RANGE.start())
+    (*mapper_constants::EQ_GAIN_DB_RANGE.end() - *mapper_constants::EQ_GAIN_DB_RANGE.start())
         / eq_gain_raw_steps()
 }
 
@@ -200,29 +179,21 @@ fn eq_quantize(db: f32) -> f32 {
 }
 
 pub fn eq_gain_db_to_raw(gain: f32) -> Result<u16, MapperError> {
-    validate_range(
-        gain,
-        mapper_constants::EQ_GAIN_DB_RANGE,
-        || format!("Invalid EQ gain: {gain}"),
-    )?;
+    validate_range(gain, mapper_constants::EQ_GAIN_DB_RANGE, || {
+        format!("Invalid EQ gain: {gain}")
+    })?;
 
     let gain = eq_quantize(gain);
 
-    Ok(
-        *protocol_constants::EQ_GAIN_RAW_RANGE.start()
-            + ((gain - *mapper_constants::EQ_GAIN_DB_RANGE.start())
-                / eq_gain_step_db())
-                .round() as u16
-    )
+    Ok(*protocol_constants::EQ_GAIN_RAW_RANGE.start()
+        + ((gain - *mapper_constants::EQ_GAIN_DB_RANGE.start()) / eq_gain_step_db()).round() as u16)
 }
 
 pub fn raw_to_eq_gain(value: u16) -> Result<f32, MapperError> {
     validators::validate_raw_eq_gain(value)?;
 
-    let gain =
-        *mapper_constants::EQ_GAIN_DB_RANGE.start()
-        + (value - *protocol_constants::EQ_GAIN_RAW_RANGE.start()) as f32
-            * eq_gain_step_db();
+    let gain = *mapper_constants::EQ_GAIN_DB_RANGE.start()
+        + (value - *protocol_constants::EQ_GAIN_RAW_RANGE.start()) as f32 * eq_gain_step_db();
 
     Ok(eq_quantize(gain))
 }
@@ -248,7 +219,7 @@ pub fn peq_band_to_raw(band: types::PEQBand, channel: types::Channel) -> Result<
         types::Channel::Input(_) => {
             if matches!(band, types::PEQBand::B9) {
                 return Err(MapperError::Validation(ValidationError::Value(
-                    "PEQ Band B9 is not available on input channels".to_string()
+                    "PEQ Band B9 is not available on input channels".to_string(),
                 )));
             }
         }
@@ -264,7 +235,9 @@ pub fn peq_band_to_raw(band: types::PEQBand, channel: types::Channel) -> Result<
 // ------ GAIN ------
 
 fn gain_split_raw() -> u16 {
-    ((mapper_constants::GAIN_SPLIT_DB - mapper_constants::GAIN_DB_RANGE.start()) / mapper_constants::GAIN_LOW_STEP_DB).round() as u16
+    ((mapper_constants::GAIN_SPLIT_DB - mapper_constants::GAIN_DB_RANGE.start())
+        / mapper_constants::GAIN_LOW_STEP_DB)
+        .round() as u16
 }
 
 fn quantize_gain(db: f32) -> f32 {
@@ -276,18 +249,21 @@ fn quantize_gain(db: f32) -> f32 {
 }
 
 pub fn gain_db_to_raw(gain: f32) -> Result<u16, MapperError> {
-    validate_range(
-        gain,
-        mapper_constants::GAIN_DB_RANGE,
-        || format!("Invalid channel gain: {gain}"),
-    )?;
+    validate_range(gain, mapper_constants::GAIN_DB_RANGE, || {
+        format!("Invalid channel gain: {gain}")
+    })?;
 
     let gain = quantize_gain(gain);
 
     if gain < mapper_constants::GAIN_SPLIT_DB {
-        Ok(((gain - mapper_constants::GAIN_DB_RANGE.start()) / mapper_constants::GAIN_LOW_STEP_DB).round() as u16)
+        Ok(
+            ((gain - mapper_constants::GAIN_DB_RANGE.start()) / mapper_constants::GAIN_LOW_STEP_DB)
+                .round() as u16,
+        )
     } else {
-        Ok(gain_split_raw() + ((gain - mapper_constants::GAIN_SPLIT_DB) / mapper_constants::GAIN_HIGH_STEP_DB).round() as u16)
+        Ok(gain_split_raw()
+            + ((gain - mapper_constants::GAIN_SPLIT_DB) / mapper_constants::GAIN_HIGH_STEP_DB)
+                .round() as u16)
     }
 }
 
@@ -295,25 +271,28 @@ pub fn raw_to_gain(raw_gain: u16) -> Result<f32, MapperError> {
     validators::validate_raw_gain(raw_gain)?;
 
     if raw_gain < gain_split_raw() {
-        Ok(mapper_constants::GAIN_DB_RANGE.start() + raw_gain as f32 * mapper_constants::GAIN_LOW_STEP_DB)
+        Ok(mapper_constants::GAIN_DB_RANGE.start()
+            + raw_gain as f32 * mapper_constants::GAIN_LOW_STEP_DB)
     } else {
-        Ok(mapper_constants::GAIN_SPLIT_DB + (raw_gain - gain_split_raw()) as f32 * mapper_constants::GAIN_HIGH_STEP_DB)
+        Ok(mapper_constants::GAIN_SPLIT_DB
+            + (raw_gain - gain_split_raw()) as f32 * mapper_constants::GAIN_HIGH_STEP_DB)
     }
 }
 
 // ------ CONTIGUOUS FREQUENCY ------
 
 pub fn frequency_hz_to_raw(hz: f32) -> Result<u16, MapperError> {
+    validate_range(hz, mapper_constants::FREQUENCY_HZ_RANGE, || {
+        format!("Invalid frequency: {hz}")
+    })?;
 
-    validate_range(
-        hz,
-        mapper_constants::FREQUENCY_HZ_RANGE,
-        || format!("Invalid frequency: {hz}"),
-    )?;
+    let device_steps = (protocol_constants::FREQUENCY_RAW_RANGE.end()
+        - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32;
 
-    let device_steps = (protocol_constants::FREQUENCY_RAW_RANGE.end() - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32;
-
-    let raw = ((hz / mapper_constants::FREQUENCY_HZ_RANGE.start()).ln() / (mapper_constants::FREQUENCY_HZ_RANGE.end() / mapper_constants::FREQUENCY_HZ_RANGE.start()).ln()
+    let raw = ((hz / mapper_constants::FREQUENCY_HZ_RANGE.start()).ln()
+        / (mapper_constants::FREQUENCY_HZ_RANGE.end()
+            / mapper_constants::FREQUENCY_HZ_RANGE.start())
+        .ln()
         * device_steps)
         .round();
 
@@ -323,10 +302,15 @@ pub fn frequency_hz_to_raw(hz: f32) -> Result<u16, MapperError> {
 pub fn raw_to_frequency_hz(value: u16) -> Result<f32, MapperError> {
     validators::validate_raw_frequency(value)?;
 
-    let device_steps = (protocol_constants::FREQUENCY_RAW_RANGE.end() - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32;
-    let normalized = (value - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32 / device_steps;
+    let device_steps = (protocol_constants::FREQUENCY_RAW_RANGE.end()
+        - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32;
+    let normalized =
+        (value - protocol_constants::FREQUENCY_RAW_RANGE.start()) as f32 / device_steps;
 
-    Ok(mapper_constants::FREQUENCY_HZ_RANGE.start() * (mapper_constants::FREQUENCY_HZ_RANGE.end() / mapper_constants::FREQUENCY_HZ_RANGE.start()).powf(normalized))
+    Ok(mapper_constants::FREQUENCY_HZ_RANGE.start()
+        * (mapper_constants::FREQUENCY_HZ_RANGE.end()
+            / mapper_constants::FREQUENCY_HZ_RANGE.start())
+        .powf(normalized))
 }
 
 // ------ DISCRETE FREQUENCY ------
@@ -369,16 +353,16 @@ fn discrete_frequency_to_raw_value(frequency: types::DiscreteFrequency) -> u8 {
 
 fn raw_to_discrete_frequency_value(raw: u8) -> Option<types::DiscreteFrequency> {
     Some(match raw {
-        0 =>  types::DiscreteFrequency::F20,
-        1 =>  types::DiscreteFrequency::F25,
-        2 =>  types::DiscreteFrequency::F31_5,
-        3 =>  types::DiscreteFrequency::F40,
-        4 =>  types::DiscreteFrequency::F50,
-        5 =>  types::DiscreteFrequency::F63,
-        6 =>  types::DiscreteFrequency::F80,
-        7 =>  types::DiscreteFrequency::F100,
-        8 =>  types::DiscreteFrequency::F125,
-        9 =>  types::DiscreteFrequency::F160,
+        0 => types::DiscreteFrequency::F20,
+        1 => types::DiscreteFrequency::F25,
+        2 => types::DiscreteFrequency::F31_5,
+        3 => types::DiscreteFrequency::F40,
+        4 => types::DiscreteFrequency::F50,
+        5 => types::DiscreteFrequency::F63,
+        6 => types::DiscreteFrequency::F80,
+        7 => types::DiscreteFrequency::F100,
+        8 => types::DiscreteFrequency::F125,
+        9 => types::DiscreteFrequency::F160,
         10 => types::DiscreteFrequency::F200,
         11 => types::DiscreteFrequency::F250,
         12 => types::DiscreteFrequency::F315,
@@ -405,21 +389,18 @@ fn raw_to_discrete_frequency_value(raw: u8) -> Option<types::DiscreteFrequency>
 }
 
 pub fn frequency_value_to_raw(frequency: types::DiscreteFrequency) -> Result<u8, MapperError> {
-
     Ok(discrete_frequency_to_raw_value(frequency))
 }
 
 pub fn raw_to_frequency_value(frequency: u8) -> Result<types::DiscreteFrequency, MapperError> {
     validators::validate_raw_discrete_frequency(frequency)?;
 
-    raw_to_discrete_frequency_value(frequency)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown frequency value: {:#04x}", frequency)
-                )
-            )
-        })
+    raw_to_discrete_frequency_value(frequency).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown frequency value: {:#04x}",
+            frequency
+        )))
+    })
 }
 
 // ------ CROSSOVER ------
@@ -452,16 +433,16 @@ fn crossover_filter_to_raw_value(filter: types::CrossoverFilter) -> u8 {
 
 fn raw_to_crossover_filter_value(raw: u8) -> Option<types::CrossoverFilter> {
     Some(match raw {
-        0 =>  types::CrossoverFilter::Bypass,
-        1 =>  types::CrossoverFilter::Bw6,
-        2 =>  types::CrossoverFilter::Bl6,
-        3 =>  types::CrossoverFilter::Bw12,
-        4 =>  types::CrossoverFilter::Bl12,
-        5 =>  types::CrossoverFilter::Lk12,
-        6 =>  types::CrossoverFilter::Bw18,
-        7 =>  types::CrossoverFilter::Bl18,
-        8 =>  types::CrossoverFilter::Bw24,
-        9 =>  types::CrossoverFilter::Bl24,
+        0 => types::CrossoverFilter::Bypass,
+        1 => types::CrossoverFilter::Bw6,
+        2 => types::CrossoverFilter::Bl6,
+        3 => types::CrossoverFilter::Bw12,
+        4 => types::CrossoverFilter::Bl12,
+        5 => types::CrossoverFilter::Lk12,
+        6 => types::CrossoverFilter::Bw18,
+        7 => types::CrossoverFilter::Bl18,
+        8 => types::CrossoverFilter::Bw24,
+        9 => types::CrossoverFilter::Bl24,
         10 => types::CrossoverFilter::Lk24,
         11 => types::CrossoverFilter::Bw30,
         12 => types::CrossoverFilter::Bl30,
@@ -484,38 +465,41 @@ pub fn crossover_filter_to_raw(filter: types::CrossoverFilter) -> Result<u8, Map
 pub fn raw_to_crossover_filter(raw: u8) -> Result<types::CrossoverFilter, MapperError> {
     validators::validate_raw_crossover_filter(raw)?;
 
-    raw_to_crossover_filter_value(raw)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown crossover filter value: {:#04x}", raw)
-                )
-            )
-        })
+    raw_to_crossover_filter_value(raw).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown crossover filter value: {:#04x}",
+            raw
+        )))
+    })
 }
 
 // ------ PEQ Q ------
 
 pub fn peq_q_to_raw(q: f32, filter: types::PEQFilter) -> Result<u8, MapperError> {
-    validate_range(
-        q,
-        mapper_constants::peq_q_range(filter),
-        || format!("Invalid PEQ Q: {q}"),
-    )?;
+    validate_range(q, mapper_constants::peq_q_range(filter), || {
+        format!("Invalid PEQ Q: {q}")
+    })?;
 
-    let raw_range = (protocol_constants::PEQ_Q_RAW_RANGE.end() - protocol_constants::PEQ_Q_RAW_RANGE.start()) as f32;
+    let raw_range = (protocol_constants::PEQ_Q_RAW_RANGE.end()
+        - protocol_constants::PEQ_Q_RAW_RANGE.start()) as f32;
 
-    Ok(((q / mapper_constants::PEQ_Q_RANGE.start()).ln() / (mapper_constants::PEQ_Q_RANGE.end() / mapper_constants::PEQ_Q_RANGE.start()).ln() * raw_range).round() as u8
+    Ok(((q / mapper_constants::PEQ_Q_RANGE.start()).ln()
+        / (mapper_constants::PEQ_Q_RANGE.end() / mapper_constants::PEQ_Q_RANGE.start()).ln()
+        * raw_range)
+        .round() as u8
         + protocol_constants::PEQ_Q_RAW_RANGE.start())
 }
 
 pub fn raw_to_peq_q(value: u8) -> Result<f32, MapperError> {
     validators::validate_raw_peq_q(value)?;
 
-    let raw_range = (protocol_constants::PEQ_Q_RAW_RANGE.end() - protocol_constants::PEQ_Q_RAW_RANGE.start()) as f32;
+    let raw_range = (protocol_constants::PEQ_Q_RAW_RANGE.end()
+        - protocol_constants::PEQ_Q_RAW_RANGE.start()) as f32;
     let normalized = (value - protocol_constants::PEQ_Q_RAW_RANGE.start()) as f32 / raw_range;
 
-    Ok(mapper_constants::PEQ_Q_RANGE.start() * (mapper_constants::PEQ_Q_RANGE.end() / mapper_constants::PEQ_Q_RANGE.start()).powf(normalized))
+    Ok(mapper_constants::PEQ_Q_RANGE.start()
+        * (mapper_constants::PEQ_Q_RANGE.end() / mapper_constants::PEQ_Q_RANGE.start())
+            .powf(normalized))
 }
 
 // ------ FILTER ------
@@ -556,14 +540,12 @@ pub fn peq_filter_to_raw(filter: types::PEQFilter) -> Result<u8, MapperError> {
 pub fn raw_to_peq_filter(value: u8) -> Result<types::PEQFilter, MapperError> {
     validators::validate_raw_peq_filter(value)?;
 
-    raw_to_peq_filter_value(value)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown PEQ filter value: {:#04x}", value)
-                )
-            )
-        })
+    raw_to_peq_filter_value(value).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown PEQ filter value: {:#04x}",
+            value
+        )))
+    })
 }
 
 // ------ RATIO ------
@@ -591,16 +573,16 @@ fn ratio_to_raw_value(ratio: types::Ratio) -> u16 {
 
 fn raw_to_ratio_value(value: u16) -> Option<types::Ratio> {
     Some(match value {
-        0 =>  types::Ratio::Ratio1_1,
-        1 =>  types::Ratio::Ratio1_1_1,
-        2 =>  types::Ratio::Ratio1_1_3,
-        3 =>  types::Ratio::Ratio1_1_5,
-        4 =>  types::Ratio::Ratio1_1_7,
-        5 =>  types::Ratio::Ratio1_2,
-        6 =>  types::Ratio::Ratio1_2_5,
-        7 =>  types::Ratio::Ratio1_3,
-        8 =>  types::Ratio::Ratio1_3_5,
-        9 =>  types::Ratio::Ratio1_4,
+        0 => types::Ratio::Ratio1_1,
+        1 => types::Ratio::Ratio1_1_1,
+        2 => types::Ratio::Ratio1_1_3,
+        3 => types::Ratio::Ratio1_1_5,
+        4 => types::Ratio::Ratio1_1_7,
+        5 => types::Ratio::Ratio1_2,
+        6 => types::Ratio::Ratio1_2_5,
+        7 => types::Ratio::Ratio1_3,
+        8 => types::Ratio::Ratio1_3_5,
+        9 => types::Ratio::Ratio1_4,
         10 => types::Ratio::Ratio1_5,
         11 => types::Ratio::Ratio1_6,
         12 => types::Ratio::Ratio1_8,
@@ -618,24 +600,20 @@ pub fn ratio_to_raw(ratio: types::Ratio) -> Result<u16, MapperError> {
 pub fn raw_to_ratio(value: u16) -> Result<types::Ratio, MapperError> {
     validators::validate_raw_compressor_ratio(value)?;
 
-    raw_to_ratio_value(value)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown ratio value: {:#04x}", value)
-                )
-            )
-        })
+    raw_to_ratio_value(value).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown ratio value: {:#04x}",
+            value
+        )))
+    })
 }
 
 // ------ KNEE ------
 
 pub fn knee_db_to_raw(db: u16) -> Result<u16, MapperError> {
-    validate_range(
-        db,
-        mapper_constants::KNEE_DB_RANGE,
-        || format!("Invalid compressor knee: {db}"),
-    )?;
+    validate_range(db, mapper_constants::KNEE_DB_RANGE, || {
+        format!("Invalid compressor knee: {db}")
+    })?;
 
     Ok(db)
 }
@@ -648,11 +626,9 @@ pub fn raw_to_knee_db(value: u16) -> Result<u16, MapperError> {
 // ------ THRESHOLD ------
 
 pub fn threshold_db_to_raw(db: f32) -> Result<u16, MapperError> {
-    validate_range(
-        db,
-        mapper_constants::THRESHOLD_DB_RANGE,
-        || format!("Invalid compressor threshold: {db}"),
-    )?;
+    validate_range(db, mapper_constants::THRESHOLD_DB_RANGE, || {
+        format!("Invalid compressor threshold: {db}")
+    })?;
 
     let db = (db * 2.0).round() / 2.0;
 
@@ -670,28 +646,22 @@ pub fn link_channels_to_raw(
     source: types::Channel,
     destinations: &[types::Channel],
 ) -> Result<u8, MapperError> {
-
     let mut mask = 0u8;
 
     match source {
         types::Channel::Input(source_channel) => {
             for destination in destinations {
                 let types::Channel::Input(destination_channel) = destination else {
-                    return Err(MapperError::Validation(
-                        ValidationError::value(
-                            "Input channel cannot link to output channel"
-                        ),
-                    ));
+                    return Err(MapperError::Validation(ValidationError::value(
+                        "Input channel cannot link to output channel",
+                    )));
                 };
 
                 if *destination_channel < source_channel {
-                    return Err(MapperError::Validation(
-                        ValidationError::value(format!(
-                            "{:?} cannot link to previous channel {:?}",
-                            source_channel,
-                            destination_channel
-                        )),
-                    ));
+                    return Err(MapperError::Validation(ValidationError::value(format!(
+                        "{:?} cannot link to previous channel {:?}",
+                        source_channel, destination_channel
+                    ))));
                 }
 
                 mask |= 1 << (*destination_channel as u8);
@@ -701,21 +671,16 @@ pub fn link_channels_to_raw(
         types::Channel::Output(source_channel) => {
             for destination in destinations {
                 let types::Channel::Output(destination_channel) = destination else {
-                    return Err(MapperError::Validation(
-                        ValidationError::value(
-                            "Output channel cannot link to input channel"
-                        ),
-                    ));
+                    return Err(MapperError::Validation(ValidationError::value(
+                        "Output channel cannot link to input channel",
+                    )));
                 };
 
                 if *destination_channel < source_channel {
-                    return Err(MapperError::Validation(
-                        ValidationError::value(format!(
-                            "{:?} cannot link to previous channel {:?}",
-                            source_channel,
-                            destination_channel
-                        )),
-                    ));
+                    return Err(MapperError::Validation(ValidationError::value(format!(
+                        "{:?} cannot link to previous channel {:?}",
+                        source_channel, destination_channel
+                    ))));
                 }
 
                 mask |= 1 << (*destination_channel as u8);
@@ -726,7 +691,10 @@ pub fn link_channels_to_raw(
     Ok(mask)
 }
 
-pub fn raw_to_link_channels(source_raw: u8, destination_mask: u8) -> Result<Vec<types::Channel>, MapperError> {
+pub fn raw_to_link_channels(
+    source_raw: u8,
+    destination_mask: u8,
+) -> Result<Vec<types::Channel>, MapperError> {
     validators::validate_raw_link_channel(source_raw, destination_mask)?;
 
     let source = raw_to_channel(source_raw)?;
@@ -757,7 +725,9 @@ pub fn raw_to_link_channels(source_raw: u8, destination_mask: u8) -> Result<Vec<
 // ------ MATRIX GAIN ------
 
 fn matrix_gain_split_raw() -> u16 {
-    ((mapper_constants::GAIN_SPLIT_DB - mapper_constants::MATRIX_GAIN_DB_RANGE.start()) / mapper_constants::GAIN_LOW_STEP_DB).round() as u16
+    ((mapper_constants::GAIN_SPLIT_DB - mapper_constants::MATRIX_GAIN_DB_RANGE.start())
+        / mapper_constants::GAIN_LOW_STEP_DB)
+        .round() as u16
 }
 
 fn quantize_matrix_gain(db: f32) -> f32 {
@@ -769,19 +739,20 @@ fn quantize_matrix_gain(db: f32) -> f32 {
 }
 
 pub fn matrix_gain_db_to_raw(gain: f32) -> Result<u16, MapperError> {
-    validate_range(
-        gain,
-        mapper_constants::MATRIX_GAIN_DB_RANGE,
-        || format!("Invalid matrix gain: {gain}"),
-    )?;
+    validate_range(gain, mapper_constants::MATRIX_GAIN_DB_RANGE, || {
+        format!("Invalid matrix gain: {gain}")
+    })?;
 
     let gain = quantize_matrix_gain(gain);
 
     if gain < mapper_constants::GAIN_SPLIT_DB {
-        Ok(((gain - mapper_constants::MATRIX_GAIN_DB_RANGE.start()) / mapper_constants::GAIN_LOW_STEP_DB).round() as u16)
+        Ok(((gain - mapper_constants::MATRIX_GAIN_DB_RANGE.start())
+            / mapper_constants::GAIN_LOW_STEP_DB)
+            .round() as u16)
     } else {
         Ok(matrix_gain_split_raw()
-            + ((gain - mapper_constants::GAIN_SPLIT_DB) / mapper_constants::GAIN_HIGH_STEP_DB).round() as u16)
+            + ((gain - mapper_constants::GAIN_SPLIT_DB) / mapper_constants::GAIN_HIGH_STEP_DB)
+                .round() as u16)
     }
 }
 
@@ -789,9 +760,11 @@ pub fn raw_to_matrix_gain(raw_gain: u16) -> Result<f32, MapperError> {
     validators::validate_raw_matrix_gain(raw_gain)?;
 
     if raw_gain < matrix_gain_split_raw() {
-        Ok(mapper_constants::MATRIX_GAIN_DB_RANGE.start() + raw_gain as f32 * mapper_constants::GAIN_LOW_STEP_DB)
+        Ok(mapper_constants::MATRIX_GAIN_DB_RANGE.start()
+            + raw_gain as f32 * mapper_constants::GAIN_LOW_STEP_DB)
     } else {
-        Ok(mapper_constants::GAIN_SPLIT_DB + (raw_gain - matrix_gain_split_raw()) as f32 * mapper_constants::GAIN_HIGH_STEP_DB)
+        Ok(mapper_constants::GAIN_SPLIT_DB
+            + (raw_gain - matrix_gain_split_raw()) as f32 * mapper_constants::GAIN_HIGH_STEP_DB)
     }
 }
 
@@ -819,10 +792,15 @@ pub fn matrix_to_raw(input_channels: &[types::InputChannel]) -> Result<u8, Mappe
 pub fn raw_to_matrix(raw: u8) -> Result<Vec<types::InputChannel>, MapperError> {
     validators::validate_raw_matrix_bitmask(raw)?;
 
-    Ok([types::InputChannel::InA, types::InputChannel::InB, types::InputChannel::InC, types::InputChannel::InD]
-        .into_iter()
-        .filter(|&c| raw & matrix_input_mask(c) != 0)
-        .collect())
+    Ok([
+        types::InputChannel::InA,
+        types::InputChannel::InB,
+        types::InputChannel::InC,
+        types::InputChannel::InD,
+    ]
+    .into_iter()
+    .filter(|&c| raw & matrix_input_mask(c) != 0)
+    .collect())
 }
 
 // ------ DELAY ------
@@ -832,14 +810,11 @@ fn delay_raw_steps() -> f32 {
 }
 
 pub fn delay_to_raw(delay: f32, unit: types::DelayUnit) -> Result<u8, MapperError> {
-    
     let (delay_min, delay_max) = mapper_constants::delay_range(unit);
 
-    validate_range(
-        delay,
-        delay_min..=delay_max,
-        || format!("Invalid channel delay: {delay}")
-    )?;    
+    validate_range(delay, delay_min..=delay_max, || {
+        format!("Invalid channel delay: {delay}")
+    })?;
 
     let raw = *protocol_constants::DELAY_RAW_RANGE.start() as f32
         + ((delay - delay_min) / (delay_max - delay_min) * delay_raw_steps()).round();
@@ -852,27 +827,39 @@ pub fn raw_to_delay(value: u8, unit: types::DelayUnit) -> Result<f32, MapperErro
 
     let (delay_min, delay_max) = mapper_constants::delay_range(unit);
 
-    Ok(delay_min + ((value - protocol_constants::DELAY_RAW_RANGE.start()) as f32 / delay_raw_steps()) * (delay_max - delay_min))
+    Ok(delay_min
+        + ((value - protocol_constants::DELAY_RAW_RANGE.start()) as f32 / delay_raw_steps())
+            * (delay_max - delay_min))
 }
 
 // ------ COPY CHANNEL ------
 
-pub fn copy_channel_to_raw(source: types::Channel, destination: types::Channel) -> Result<(u8, u8), MapperError> {
+pub fn copy_channel_to_raw(
+    source: types::Channel,
+    destination: types::Channel,
+) -> Result<(u8, u8), MapperError> {
     if source == destination {
-        return Err(ValidationError::Value("Source channel and destination channel can't be the same".to_string()).into())
+        return Err(ValidationError::Value(
+            "Source channel and destination channel can't be the same".to_string(),
+        )
+        .into());
     }
 
     match (&source, &destination) {
         (types::Channel::Input(_), types::Channel::Output(_))
         | (types::Channel::Output(_), types::Channel::Input(_)) => {
             return Err(ValidationError::Value(
-                "Channels need to be both inputs or outputs".to_string()).into(),
-            );
+                "Channels need to be both inputs or outputs".to_string(),
+            )
+            .into());
         }
         _ => {}
     }
 
-    Ok((channel_to_raw_value(source), channel_to_raw_value(destination)))
+    Ok((
+        channel_to_raw_value(source),
+        channel_to_raw_value(destination),
+    ))
 }
 
 #[cfg(test)]
@@ -919,10 +906,22 @@ mod tests {
 
     #[test]
     fn channel_specific_raw_values() {
-        assert_eq!(channel_to_raw(types::Channel::Input(types::InputChannel::InA)).unwrap(), 0x00);
-        assert_eq!(channel_to_raw(types::Channel::Input(types::InputChannel::InD)).unwrap(), 0x03);
-        assert_eq!(channel_to_raw(types::Channel::Output(types::OutputChannel::Out1)).unwrap(), 0x04);
-        assert_eq!(channel_to_raw(types::Channel::Output(types::OutputChannel::Out8)).unwrap(), 0x0B);
+        assert_eq!(
+            channel_to_raw(types::Channel::Input(types::InputChannel::InA)).unwrap(),
+            0x00
+        );
+        assert_eq!(
+            channel_to_raw(types::Channel::Input(types::InputChannel::InD)).unwrap(),
+            0x03
+        );
+        assert_eq!(
+            channel_to_raw(types::Channel::Output(types::OutputChannel::Out1)).unwrap(),
+            0x04
+        );
+        assert_eq!(
+            channel_to_raw(types::Channel::Output(types::OutputChannel::Out8)).unwrap(),
+            0x0B
+        );
     }
 
     // ------------------------------------------------------------------
@@ -1045,9 +1044,15 @@ mod tests {
     #[test]
     fn peq_band_output_all_bands() {
         let bands = [
-            types::PEQBand::B1, types::PEQBand::B2, types::PEQBand::B3,
-            types::PEQBand::B4, types::PEQBand::B5, types::PEQBand::B6,
-            types::PEQBand::B7, types::PEQBand::B8, types::PEQBand::B9,
+            types::PEQBand::B1,
+            types::PEQBand::B2,
+            types::PEQBand::B3,
+            types::PEQBand::B4,
+            types::PEQBand::B5,
+            types::PEQBand::B6,
+            types::PEQBand::B7,
+            types::PEQBand::B8,
+            types::PEQBand::B9,
         ];
         let out_channel = types::Channel::Output(types::OutputChannel::Out1);
         for (i, band) in bands.into_iter().enumerate() {
@@ -1058,9 +1063,14 @@ mod tests {
     #[test]
     fn peq_band_input_allowed_bands() {
         let bands = [
-            types::PEQBand::B1, types::PEQBand::B2, types::PEQBand::B3,
-            types::PEQBand::B4, types::PEQBand::B5, types::PEQBand::B6,
-            types::PEQBand::B7, types::PEQBand::B8,
+            types::PEQBand::B1,
+            types::PEQBand::B2,
+            types::PEQBand::B3,
+            types::PEQBand::B4,
+            types::PEQBand::B5,
+            types::PEQBand::B6,
+            types::PEQBand::B7,
+            types::PEQBand::B8,
         ];
         let in_channel = types::Channel::Input(types::InputChannel::InA);
         for (i, band) in bands.into_iter().enumerate() {
@@ -1127,21 +1137,36 @@ mod tests {
     #[test]
     fn discrete_frequency_round_trip_all() {
         let freqs = [
-            types::DiscreteFrequency::F20, types::DiscreteFrequency::F25,
-            types::DiscreteFrequency::F31_5, types::DiscreteFrequency::F40,
-            types::DiscreteFrequency::F50, types::DiscreteFrequency::F63,
-            types::DiscreteFrequency::F80, types::DiscreteFrequency::F100,
-            types::DiscreteFrequency::F125, types::DiscreteFrequency::F160,
-            types::DiscreteFrequency::F200, types::DiscreteFrequency::F250,
-            types::DiscreteFrequency::F315, types::DiscreteFrequency::F400,
-            types::DiscreteFrequency::F500, types::DiscreteFrequency::F630,
-            types::DiscreteFrequency::F800, types::DiscreteFrequency::F1000,
-            types::DiscreteFrequency::F1250, types::DiscreteFrequency::F1600,
-            types::DiscreteFrequency::F2000, types::DiscreteFrequency::F2500,
-            types::DiscreteFrequency::F3150, types::DiscreteFrequency::F4000,
-            types::DiscreteFrequency::F5000, types::DiscreteFrequency::F6300,
-            types::DiscreteFrequency::F8000, types::DiscreteFrequency::F10000,
-            types::DiscreteFrequency::F12500, types::DiscreteFrequency::F16000,
+            types::DiscreteFrequency::F20,
+            types::DiscreteFrequency::F25,
+            types::DiscreteFrequency::F31_5,
+            types::DiscreteFrequency::F40,
+            types::DiscreteFrequency::F50,
+            types::DiscreteFrequency::F63,
+            types::DiscreteFrequency::F80,
+            types::DiscreteFrequency::F100,
+            types::DiscreteFrequency::F125,
+            types::DiscreteFrequency::F160,
+            types::DiscreteFrequency::F200,
+            types::DiscreteFrequency::F250,
+            types::DiscreteFrequency::F315,
+            types::DiscreteFrequency::F400,
+            types::DiscreteFrequency::F500,
+            types::DiscreteFrequency::F630,
+            types::DiscreteFrequency::F800,
+            types::DiscreteFrequency::F1000,
+            types::DiscreteFrequency::F1250,
+            types::DiscreteFrequency::F1600,
+            types::DiscreteFrequency::F2000,
+            types::DiscreteFrequency::F2500,
+            types::DiscreteFrequency::F3150,
+            types::DiscreteFrequency::F4000,
+            types::DiscreteFrequency::F5000,
+            types::DiscreteFrequency::F6300,
+            types::DiscreteFrequency::F8000,
+            types::DiscreteFrequency::F10000,
+            types::DiscreteFrequency::F12500,
+            types::DiscreteFrequency::F16000,
             types::DiscreteFrequency::F20000,
         ];
         for (i, f) in freqs.into_iter().enumerate() {
@@ -1158,16 +1183,26 @@ mod tests {
     #[test]
     fn crossover_filter_round_trip_all() {
         let filters = [
-            types::CrossoverFilter::Bypass, types::CrossoverFilter::Bw6,
-            types::CrossoverFilter::Bl6, types::CrossoverFilter::Bw12,
-            types::CrossoverFilter::Bl12, types::CrossoverFilter::Lk12,
-            types::CrossoverFilter::Bw18, types::CrossoverFilter::Bl18,
-            types::CrossoverFilter::Bw24, types::CrossoverFilter::Bl24,
-            types::CrossoverFilter::Lk24, types::CrossoverFilter::Bw30,
-            types::CrossoverFilter::Bl30, types::CrossoverFilter::Bw36,
-            types::CrossoverFilter::Bl36, types::CrossoverFilter::Lk36,
-            types::CrossoverFilter::Bw42, types::CrossoverFilter::Bl42,
-            types::CrossoverFilter::Bw48, types::CrossoverFilter::Bl48,
+            types::CrossoverFilter::Bypass,
+            types::CrossoverFilter::Bw6,
+            types::CrossoverFilter::Bl6,
+            types::CrossoverFilter::Bw12,
+            types::CrossoverFilter::Bl12,
+            types::CrossoverFilter::Lk12,
+            types::CrossoverFilter::Bw18,
+            types::CrossoverFilter::Bl18,
+            types::CrossoverFilter::Bw24,
+            types::CrossoverFilter::Bl24,
+            types::CrossoverFilter::Lk24,
+            types::CrossoverFilter::Bw30,
+            types::CrossoverFilter::Bl30,
+            types::CrossoverFilter::Bw36,
+            types::CrossoverFilter::Bl36,
+            types::CrossoverFilter::Lk36,
+            types::CrossoverFilter::Bw42,
+            types::CrossoverFilter::Bl42,
+            types::CrossoverFilter::Bw48,
+            types::CrossoverFilter::Bl48,
             types::CrossoverFilter::Lk48,
         ];
         for (i, f) in filters.into_iter().enumerate() {
@@ -1207,10 +1242,14 @@ mod tests {
     #[test]
     fn peq_filter_round_trip_all() {
         let filters = [
-            types::PEQFilter::Peak, types::PEQFilter::LowShelf,
-            types::PEQFilter::HighShelf, types::PEQFilter::Lp6Db,
-            types::PEQFilter::Lp12Db, types::PEQFilter::Hp6Db,
-            types::PEQFilter::Hp12Db, types::PEQFilter::AllPass1,
+            types::PEQFilter::Peak,
+            types::PEQFilter::LowShelf,
+            types::PEQFilter::HighShelf,
+            types::PEQFilter::Lp6Db,
+            types::PEQFilter::Lp12Db,
+            types::PEQFilter::Hp6Db,
+            types::PEQFilter::Hp12Db,
+            types::PEQFilter::AllPass1,
             types::PEQFilter::AllPass2,
         ];
         for (i, f) in filters.into_iter().enumerate() {
@@ -1227,11 +1266,21 @@ mod tests {
     #[test]
     fn ratio_round_trip_all() {
         let ratios = [
-            types::Ratio::Ratio1_1, types::Ratio::Ratio1_1_1, types::Ratio::Ratio1_1_3,
-            types::Ratio::Ratio1_1_5, types::Ratio::Ratio1_1_7, types::Ratio::Ratio1_2,
-            types::Ratio::Ratio1_2_5, types::Ratio::Ratio1_3, types::Ratio::Ratio1_3_5,
-            types::Ratio::Ratio1_4, types::Ratio::Ratio1_5, types::Ratio::Ratio1_6,
-            types::Ratio::Ratio1_8, types::Ratio::Ratio1_10, types::Ratio::Ratio1_20,
+            types::Ratio::Ratio1_1,
+            types::Ratio::Ratio1_1_1,
+            types::Ratio::Ratio1_1_3,
+            types::Ratio::Ratio1_1_5,
+            types::Ratio::Ratio1_1_7,
+            types::Ratio::Ratio1_2,
+            types::Ratio::Ratio1_2_5,
+            types::Ratio::Ratio1_3,
+            types::Ratio::Ratio1_3_5,
+            types::Ratio::Ratio1_4,
+            types::Ratio::Ratio1_5,
+            types::Ratio::Ratio1_6,
+            types::Ratio::Ratio1_8,
+            types::Ratio::Ratio1_10,
+            types::Ratio::Ratio1_20,
             types::Ratio::Limit,
         ];
         for (i, r) in ratios.into_iter().enumerate() {

src/dsp408/mapper/constants.rs

@@ -10,26 +10,20 @@ pub const RELEASE_MS_RANGE: RangeInclusive<u16> = 10..=3000;
 pub const KNEE_DB_RANGE: RangeInclusive<u16> = 0..=12;
 pub const THRESHOLD_DB_RANGE: RangeInclusive<f32> = -90.0..=20.0;
 
-pub const FREQUENCY_HZ_RANGE:  RangeInclusive<f32> = 19.7..=20160.0;
+pub const FREQUENCY_HZ_RANGE: RangeInclusive<f32> = 19.7..=20160.0;
 
 pub const EQ_GAIN_DB_RANGE: RangeInclusive<f32> = -12.0..=12.0;
 pub const PEQ_Q_RANGE: RangeInclusive<f32> = 0.40..=128.0;
 pub fn peq_q_range(filter: PEQFilter) -> RangeInclusive<f32> {
     match filter {
-        PEQFilter::Peak
-        | PEQFilter::AllPass1
-        | PEQFilter::AllPass2 => {
-            0.40..=128.0
-        }
+        PEQFilter::Peak | PEQFilter::AllPass1 | PEQFilter::AllPass2 => 0.40..=128.0,
 
         PEQFilter::LowShelf
         | PEQFilter::HighShelf
         | PEQFilter::Lp6Db
         | PEQFilter::Lp12Db
         | PEQFilter::Hp6Db
-        | PEQFilter::Hp12Db => {
-            0.40..=3.0
-        }
+        | PEQFilter::Hp12Db => 0.40..=3.0,
     }
 }
 
@@ -41,8 +35,8 @@ pub const GAIN_HIGH_STEP_DB: f32 = 0.1;
 pub fn delay_range(unit: DelayUnit) -> (f32, f32) {
     match unit {
         DelayUnit::Millisecond => (0.000, 680.000),
-        DelayUnit::Meter       => (0.000, 233.580),
-        DelayUnit::Feet        => (0.000, 766.329),
+        DelayUnit::Meter => (0.000, 233.580),
+        DelayUnit::Feet => (0.000, 766.329),
     }
 }
 

src/dsp408/mapper/encoding.rs

@@ -1,17 +1,19 @@
-use crate::common::errors::{
-    DecodingError,
-    EncodingError,
-};
+use crate::common::errors::{DecodingError, EncodingError};
 
 // ------ STRING ------
 
 pub fn encode_ascii(value: &str, length: usize, padding: u8) -> Result<Vec<u8>, EncodingError> {
     if length == 0 {
-        return Err(EncodingError::new(format!("Invalid string length: {}", length)));
+        return Err(EncodingError::new(format!(
+            "Invalid string length: {}",
+            length
+        )));
     }
 
     if !value.is_ascii() {
-        return Err(EncodingError::new("String must contain ASCII characters only"));
+        return Err(EncodingError::new(
+            "String must contain ASCII characters only",
+        ));
     }
 
     let raw = value.as_bytes();
@@ -38,7 +40,9 @@ pub fn decode_ascii(raw: &[u8], strip: bool) -> Result<String, DecodingError> {
     let result = String::from_utf8(raw.to_vec()).expect("raw is ASCII, so always valid UTF-8");
 
     Ok(if strip {
-        result.trim_end_matches(['\u{0020}', '\u{0000}']).to_string()
+        result
+            .trim_end_matches(['\u{0020}', '\u{0000}'])
+            .to_string()
     } else {
         result
     })
@@ -65,15 +69,10 @@ pub fn decode_float16(lo: u8, hi: u8) -> Result<f32, DecodingError> {
             return Ok(f32::NAN);
         }
     } else {
-        (1.0 + mantissa as f32 / 1024.0)
-            * 2f32.powi(exponent as i32 - 15)
+        (1.0 + mantissa as f32 / 1024.0) * 2f32.powi(exponent as i32 - 15)
     };
 
-    if sign == 1 {
-        Ok(-result)
-    } else {
-        Ok(result)
-    }
+    if sign == 1 { Ok(-result) } else { Ok(result) }
 }
 
 #[cfg(test)]
@@ -92,10 +91,7 @@ mod tests {
     fn test_encode_ascii_pads_short_string() {
         let result = encode_ascii("hi", 5, b'\0');
 
-        assert_eq!(
-            result.unwrap(),
-            vec![b'h', b'i', 0, 0, 0]
-        );
+        assert_eq!(result.unwrap(), vec![b'h', b'i', 0, 0, 0]);
     }
 
     #[test]
@@ -103,10 +99,7 @@ mod tests {
         let result = encode_ascii("hello", 0, b' ');
 
         assert!(result.is_err());
-        assert_eq!(
-            result.unwrap_err().to_string(),
-            "Invalid string length: 0"
-        );
+        assert_eq!(result.unwrap_err().to_string(), "Invalid string length: 0");
     }
 
     #[test]
@@ -165,13 +158,9 @@ mod tests {
         let result = decode_ascii(&raw, false);
 
         assert!(result.is_err());
-        assert_eq!(
-            result.unwrap_err().to_string(),
-            "Invalid ASCII data"
-        );
+        assert_eq!(result.unwrap_err().to_string(), "Invalid ASCII data");
     }
 
-
     // ------ FLOAT TESTS ------
 
     #[test]

src/dsp408/mapper/global.rs

@@ -1,25 +1,15 @@
 use crate::{
     common::{
         errors::{DecodingError, MapperError},
-        validator::{
-            validate_ascii_padded,
-            validate_range,
-        },
+        validator::{validate_ascii_padded, validate_range},
     },
     dsp408::{
-        protocol::{
-            constants as protocol_constants,
-            validators,
-        },
+        protocol::{constants as protocol_constants, validators},
         types,
     },
 };
 
-use super::{
-    constants,
-    decode_ascii,
-    encode_ascii,
-};
+use super::{constants, decode_ascii, encode_ascii};
 
 // ------ DELAY ------
 
@@ -40,55 +30,43 @@ fn raw_to_delay_unit_value(value: u8) -> Option<types::DelayUnit> {
     }
 }
 
-pub fn delay_unit_to_raw(
-    unit: types::DelayUnit,
-) -> Result<u8, MapperError> {
+pub fn delay_unit_to_raw(unit: types::DelayUnit) -> Result<u8, MapperError> {
     Ok(delay_unit_to_raw_value(unit))
 }
 
-pub fn raw_to_delay_unit(
-    value: u8,
-) -> Result<types::DelayUnit, MapperError> {
+pub fn raw_to_delay_unit(value: u8) -> Result<types::DelayUnit, MapperError> {
     validators::validate_raw_delay_unit(value)?;
 
-    raw_to_delay_unit_value(value)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown delay unit value: {:#04x}", value),
-                ),
-            )
-        })
+    raw_to_delay_unit_value(value).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown delay unit value: {:#04x}",
+            value
+        )))
+    })
 }
 
 // ------ PRESET INDEX ------
 
 pub fn preset_index_to_raw(index: usize) -> Result<u8, MapperError> {
-    validate_range(
-        index,
-        0..=constants::PRESET_INDEX_MAX,
-        || format!("Invalid preset index {}", index)
-    )?;
+    validate_range(index, 0..=constants::PRESET_INDEX_MAX, || {
+        format!("Invalid preset index {}", index)
+    })?;
     Ok(index as u8)
 }
 
 pub fn preset_index_without_factory_to_raw(index: usize) -> Result<u8, MapperError> {
-    validate_range(
-        index,
-        1..=constants::PRESET_INDEX_MAX,
-        || format!("Invalid preset index {}", index)
-    )?;
+    validate_range(index, 1..=constants::PRESET_INDEX_MAX, || {
+        format!("Invalid preset index {}", index)
+    })?;
     Ok(index as u8 - 1)
 }
 
 // ------ CONFIG CHUNK ------
 
 pub fn config_chunk_to_raw(index: usize) -> Result<u8, MapperError> {
-    validate_range(
-        index,
-        0..=constants::CONFIG_CHUNK_INDEX_MAX,
-        || format!("Invalid config index: {:#04x}", index)
-    )?;
+    validate_range(index, 0..=constants::CONFIG_CHUNK_INDEX_MAX, || {
+        format!("Invalid config index: {:#04x}", index)
+    })?;
     Ok(index as u8)
 }
 
@@ -99,10 +77,14 @@ pub fn preset_name_to_raw(name: &str) -> Result<Vec<u8>, MapperError> {
         name.as_bytes(),
         protocol_constants::PRESET_NAME_LENGTH,
         protocol_constants::PRESET_NAME_PADDING,
-        "Preset name"
+        "Preset name",
     )?;
 
-    Ok(encode_ascii(name, protocol_constants::PRESET_NAME_LENGTH, protocol_constants::PRESET_NAME_PADDING)?)
+    Ok(encode_ascii(
+        name,
+        protocol_constants::PRESET_NAME_LENGTH,
+        protocol_constants::PRESET_NAME_PADDING,
+    )?)
 }
 
 pub fn raw_to_preset_name(raw_name: &[u8]) -> Result<String, MapperError> {
@@ -115,10 +97,12 @@ pub fn raw_to_preset_name(raw_name: &[u8]) -> Result<String, MapperError> {
 
 fn input_source_to_raw_value(source: types::InputType) -> u8 {
     match source {
-        types::InputType::Analog     => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start(),
-        types::InputType::PinkNoise  => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 1,
-        types::InputType::WhiteNoise => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 2,
-        types::InputType::SineWave   => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 3,
+        types::InputType::Analog => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start(),
+        types::InputType::PinkNoise => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 1,
+        types::InputType::WhiteNoise => {
+            *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 2
+        }
+        types::InputType::SineWave => *protocol_constants::INPUT_SOURCE_TYPE_RAW_RANGE.start() + 3,
     }
 }
 
@@ -139,14 +123,12 @@ pub fn input_source_to_raw(source: types::InputType) -> Result<u8, MapperError>
 pub fn raw_to_input_source(value: u8) -> Result<types::InputType, MapperError> {
     validators::validate_raw_input_source(value)?;
 
-    raw_to_input_source_value(value)
-        .ok_or_else(|| {
-            MapperError::Decoding(
-                DecodingError::new(
-                    format!("Unknown input value: {:#04x}", value)
-                )
-            )
-        })
+    raw_to_input_source_value(value).ok_or_else(|| {
+        MapperError::Decoding(DecodingError::new(format!(
+            "Unknown input value: {:#04x}",
+            value
+        )))
+    })
 }
 
 // ------ PASSWORD ------
@@ -156,10 +138,14 @@ pub fn password_to_raw(password: &str) -> Result<Vec<u8>, MapperError> {
         password.as_bytes(),
         protocol_constants::PASSWORD_LENGTH,
         protocol_constants::PASSWORD_PADDING,
-        "Password"
+        "Password",
     )?;
 
-    Ok(encode_ascii(password, protocol_constants::PASSWORD_LENGTH, protocol_constants::PASSWORD_PADDING)?)
+    Ok(encode_ascii(
+        password,
+        protocol_constants::PASSWORD_LENGTH,
+        protocol_constants::PASSWORD_PADDING,
+    )?)
 }
 
 #[cfg(test)]
@@ -237,10 +223,7 @@ mod tests {
 
         let raw = preset_name_to_raw(name).unwrap();
 
-        assert_eq!(
-            raw_to_preset_name(&raw).unwrap(),
-            "DSP408",
-        );
+        assert_eq!(raw_to_preset_name(&raw).unwrap(), "DSP408",);
     }
 
     #[test]

src/dsp408/mapper/mod.rs

@@ -1,8 +1,8 @@
 mod channel;
+pub(crate) mod constants;
 mod encoding;
 mod global;
 pub(crate) mod response;
-pub(crate) mod constants;
 
 pub use channel::*;
 pub use encoding::*;

src/dsp408/mapper/response.rs

@@ -2,28 +2,13 @@ use crate::{
     common::errors::ProtocolError,
     dsp408::{
         protocol::{
-            constants::{
-                METERS_HIGH_STEP,
-                METERS_LOW_STEP,
-                METERS_SPLIT,
-                METERS_SPLIT_LEVEL_DB,
-            },
+            constants::{METERS_HIGH_STEP, METERS_LOW_STEP, METERS_SPLIT, METERS_SPLIT_LEVEL_DB},
             frame::Frame,
         },
         types::{
-            Acknowledgement,
-            AuthenticationResult,
-            ConfigChunk,
-            CurrentPreset,
-            DeviceFlags,
-            DeviceInfo,
-            DeviceResponseType,
-            HandshakeAck,
-            Meters,
-            ModifiedPreset,
-            NotImplemented,
-            PresetName,
-            UnknownResponse,
+            Acknowledgement, AuthenticationResult, ConfigChunk, CurrentPreset, DeviceFlags,
+            DeviceInfo, DeviceResponseType, HandshakeAck, Meters, ModifiedPreset, NotImplemented,
+            PresetName, UnknownResponse,
         },
     },
 };
@@ -66,8 +51,7 @@ pub fn map_response(frame: &Frame) -> Result<DeviceResponseType, ProtocolError>
             return Err(ProtocolError::new("Missing device name payload"));
         }
 
-        let name = decode_ascii(payload, false)
-            .map_err(|e| ProtocolError::new(e.0))?;
+        let name = decode_ascii(payload, false).map_err(|e| ProtocolError::new(e.0))?;
 
         return Ok(DeviceResponseType::DeviceInfo(DeviceInfo { name }));
     }
@@ -131,8 +115,7 @@ pub fn map_response(frame: &Frame) -> Result<DeviceResponseType, ProtocolError>
             return Err(ProtocolError::new("Missing preset index"));
         }
 
-        let name = decode_ascii(&payload[1..], false)
-            .map_err(|e| ProtocolError::new(e.0))?;
+        let name = decode_ascii(&payload[1..], false).map_err(|e| ProtocolError::new(e.0))?;
 
         return Ok(DeviceResponseType::PresetName(PresetName {
             index: payload[0],
@@ -174,9 +157,11 @@ pub fn map_response(frame: &Frame) -> Result<DeviceResponseType, ProtocolError>
             )));
         }
 
-        return Ok(DeviceResponseType::AuthenticationResult(AuthenticationResult {
-            success: payload[1] == 0x01,
-        }));
+        return Ok(DeviceResponseType::AuthenticationResult(
+            AuthenticationResult {
+                success: payload[1] == 0x01,
+            },
+        ));
     }
 
     // Command `0x40` (Get Level Meters)
@@ -224,9 +209,7 @@ mod tests {
 
         assert_eq!(
             result,
-            DeviceResponseType::Acknowledgement(Acknowledgement {
-                success: true
-            })
+            DeviceResponseType::Acknowledgement(Acknowledgement { success: true })
         );
     }
 
@@ -234,10 +217,7 @@ mod tests {
     fn not_implemented() {
         let result = map_response(&frame(0x02, vec![])).unwrap();
 
-        assert_eq!(
-            result,
-            DeviceResponseType::NotImplemented(NotImplemented)
-        );
+        assert_eq!(result, DeviceResponseType::NotImplemented(NotImplemented));
     }
 
     #[test]
@@ -246,9 +226,7 @@ mod tests {
 
         assert_eq!(
             result,
-            DeviceResponseType::HandshakeAck(HandshakeAck {
-                ack: Some(1)
-            })
+            DeviceResponseType::HandshakeAck(HandshakeAck { ack: Some(1) })
         );
     }
 
@@ -261,8 +239,7 @@ mod tests {
 
     #[test]
     fn device_name() {
-        let result = map_response(&frame(0x13, b"TestDevice".to_vec()))
-            .unwrap();
+        let result = map_response(&frame(0x13, b"TestDevice".to_vec())).unwrap();
 
         assert_eq!(
             result,
@@ -274,47 +251,34 @@ mod tests {
 
     #[test]
     fn device_name_missing_payload() {
-        assert!(
-            map_response(&frame(0x13, vec![]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x13, vec![])).is_err());
     }
 
     #[test]
     fn device_name_invalid_ascii() {
-        assert!(
-            map_response(&frame(0x13, vec![0xff]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x13, vec![0xff])).is_err());
     }
 
     #[test]
     fn current_preset() {
-        let result = map_response(&frame(0x14, vec![5]))
-            .unwrap();
+        let result = map_response(&frame(0x14, vec![5])).unwrap();
 
         assert_eq!(
             result,
-            DeviceResponseType::CurrentPreset(CurrentPreset {
-                index: 5
-            })
+            DeviceResponseType::CurrentPreset(CurrentPreset { index: 5 })
         );
     }
 
     #[test]
     fn current_preset_wrong_length_errors() {
-        assert!(
-            map_response(&frame(0x14, vec![1, 2]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x14, vec![1, 2])).is_err());
     }
 
     #[test]
     fn modified_preset() {
         let payload = vec![0xff; 20];
 
-        let result = map_response(&frame(0x22, payload))
-            .unwrap();
+        let result = map_response(&frame(0x22, payload)).unwrap();
 
         match result {
             DeviceResponseType::ModifiedPreset(p) => {
@@ -327,19 +291,12 @@ mod tests {
 
     #[test]
     fn modified_preset_invalid_length() {
-        assert!(
-            map_response(&frame(0x22, vec![0; 19]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x22, vec![0; 19])).is_err());
     }
 
     #[test]
     fn config_chunk() {
-        let result = map_response(&frame(
-            0x24,
-            vec![3, 0xaa, 0xbb],
-        ))
-        .unwrap();
+        let result = map_response(&frame(0x24, vec![3, 0xaa, 0xbb])).unwrap();
 
         assert_eq!(
             result,
@@ -352,8 +309,7 @@ mod tests {
 
     #[test]
     fn config_chunk_empty_payload_defaults_to_zero() {
-        let result = map_response(&frame(0x24, vec![]))
-            .unwrap();
+        let result = map_response(&frame(0x24, vec![])).unwrap();
 
         assert_eq!(
             result,
@@ -366,19 +322,12 @@ mod tests {
 
     #[test]
     fn config_chunk_invalid_index() {
-        assert!(
-            map_response(&frame(0x24, vec![0x1d]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x24, vec![0x1d])).is_err());
     }
 
     #[test]
     fn preset_name() {
-        let result = map_response(&frame(
-            0x29,
-            vec![2, b'A', b'm', b'p'],
-        ))
-        .unwrap();
+        let result = map_response(&frame(0x29, vec![2, b'A', b'm', b'p'])).unwrap();
 
         assert_eq!(
             result,
@@ -391,18 +340,12 @@ mod tests {
 
     #[test]
     fn preset_name_missing_index() {
-        assert!(
-            map_response(&frame(0x29, vec![]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x29, vec![])).is_err());
     }
 
     #[test]
     fn preset_name_invalid_ascii() {
-        assert!(
-            map_response(&frame(0x29, vec![1, 0xff]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x29, vec![1, 0xff])).is_err());
     }
 
     #[test]
@@ -410,23 +353,17 @@ mod tests {
         let mut payload = vec![0; 6];
         payload[5] = 1;
 
-        let result = map_response(&frame(0x2c, payload))
-            .unwrap();
+        let result = map_response(&frame(0x2c, payload)).unwrap();
 
         assert_eq!(
             result,
-            DeviceResponseType::DeviceFlags(DeviceFlags {
-                is_locked: true
-            })
+            DeviceResponseType::DeviceFlags(DeviceFlags { is_locked: true })
         );
     }
 
     #[test]
     fn device_flags_invalid_length() {
-        assert!(
-            map_response(&frame(0x2c, vec![0; 5]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x2c, vec![0; 5])).is_err());
     }
 
     #[test]
@@ -434,52 +371,32 @@ mod tests {
         let mut payload = vec![0; 6];
         payload[5] = 2;
 
-        assert!(
-            map_response(&frame(0x2c, payload))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x2c, payload)).is_err());
     }
 
     #[test]
     fn authentication_success() {
-        let result = map_response(&frame(
-            0x2d,
-            vec![0, 1],
-        ))
-        .unwrap();
+        let result = map_response(&frame(0x2d, vec![0, 1])).unwrap();
 
         assert_eq!(
             result,
-            DeviceResponseType::AuthenticationResult(
-                AuthenticationResult {
-                    success: true
-                }
-            )
+            DeviceResponseType::AuthenticationResult(AuthenticationResult { success: true })
         );
     }
 
     #[test]
     fn authentication_missing_result() {
-        assert!(
-            map_response(&frame(0x2d, vec![0]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x2d, vec![0])).is_err());
     }
 
     #[test]
     fn authentication_invalid_flag() {
-        assert!(
-            map_response(&frame(0x2d, vec![0, 2]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x2d, vec![0, 2])).is_err());
     }
 
     #[test]
     fn meters_invalid_length() {
-        assert!(
-            map_response(&frame(0x40, vec![0; 10]))
-                .is_err()
-        );
+        assert!(map_response(&frame(0x40, vec![0; 10])).is_err());
     }
 
     #[test]
@@ -494,8 +411,7 @@ mod tests {
             payload[i + 1] = 0x3c;
         }
 
-        let result = map_response(&frame(0x40, payload))
-            .unwrap();
+        let result = map_response(&frame(0x40, payload)).unwrap();
 
         match result {
             DeviceResponseType::Meters(m) => {
@@ -511,21 +427,14 @@ mod tests {
 
     #[test]
     fn unknown_command_falls_through() {
-        let result = map_response(&frame(
-            0x99,
-            vec![0xaa],
-        ))
-        .unwrap();
+        let result = map_response(&frame(0x99, vec![0xaa])).unwrap();
 
         match result {
             DeviceResponseType::UnknownResponse(r) => {
                 assert_eq!(r.cmd, "0x99");
                 assert_eq!(r.raw, vec![0xaa]);
             }
-            other => panic!(
-                "expected UnknownResponse, got {:?}",
-                other
-            ),
+            other => panic!("expected UnknownResponse, got {:?}", other),
         }
     }
 }

src/dsp408/mod.rs

@@ -1,6 +1,6 @@
-mod protocol;
 mod client;
 mod mapper;
+mod protocol;
 
 pub mod types;
 

src/dsp408/protocol/commands.rs

@@ -1,15 +1,9 @@
 use crate::common::errors::ValidationError;
 
-use super::{
-    frame::build_frame,
-    validators::*,
-};
+use super::{frame::build_frame, validators::*};
 
 fn split_u16(value: u16) -> [u8; 2] {
-    [
-        (value & 0xff) as u8,
-        (value >> 8) as u8,
-    ]
+    [(value & 0xff) as u8, (value >> 8) as u8]
 }
 
 // Command 0x10 Start
@@ -38,135 +32,81 @@ pub fn build_get_current_preset() -> Vec<u8> {
 }
 
 // Command 0x15 Delay Unit
-pub fn build_set_delay_unit(
-    raw_unit: u8
-) -> Result<Vec<u8>, ValidationError> {
+pub fn build_set_delay_unit(raw_unit: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_delay_unit(raw_unit)?;
 
-    Ok(build_frame(
-        0x15,
-        &[raw_unit]
-    ))
+    Ok(build_frame(0x15, &[raw_unit]))
 }
 
 // Command 0x20 Recall
-pub fn build_recall(
-    raw_index:u8
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_recall(raw_index: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_preset_index(raw_index)?;
 
-    Ok(build_frame(
-        0x20,
-        &[raw_index]
-    ))
+    Ok(build_frame(0x20, &[raw_index]))
 }
 
 // Command 0x21 Store preset
-pub fn build_store_current_configuration(
-    raw_index:u8
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_store_current_configuration(raw_index: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_store_preset_index(raw_index)?;
 
-    Ok(build_frame(
-        0x21,
-        &[raw_index]
-    ))
+    Ok(build_frame(0x21, &[raw_index]))
 }
 
 // Command 0x22
 pub fn build_preset_modification_status() -> Vec<u8> {
-    build_frame(0x22,&[])
+    build_frame(0x22, &[])
 }
 
 // Command 0x23
 pub fn build_factory_reset() -> Vec<u8> {
-    build_frame(0x23,&[])
+    build_frame(0x23, &[])
 }
 
 // Command 0x26
-pub fn build_store_current_preset_name(
-    raw_name:&[u8]
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_store_current_preset_name(raw_name: &[u8]) -> Result<Vec<u8>, ValidationError> {
     validate_raw_preset_name(raw_name)?;
 
-    Ok(build_frame(
-        0x26,
-        raw_name
-    ))
+    Ok(build_frame(0x26, raw_name))
 }
 
 // Command 0x27
-pub fn build_config_chunk(
-    raw_index:u8
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_config_chunk(raw_index: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_config_chunk_index(raw_index)?;
 
-    Ok(build_frame(
-        0x27,
-        &[raw_index]
-    ))
+    Ok(build_frame(0x27, &[raw_index]))
 }
 
 // Command 0x29
-pub fn build_get_preset_name(
-    raw_index:u8
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_get_preset_name(raw_index: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_get_preset_index(raw_index)?;
 
-    Ok(build_frame(
-        0x29,
-        &[raw_index]
-    ))
+    Ok(build_frame(0x29, &[raw_index]))
 }
 
 // Command 0x2A
-pub fn build_copy_channel(
-    source: u8,
-    destination: u8,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_copy_channel(source: u8, destination: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_copy_channels(source, destination)?;
 
-    Ok(build_frame(
-        0x2A,
-        &[source, destination],
-    ))
+    Ok(build_frame(0x2A, &[source, destination]))
 }
 
 // Command 0x2C
 pub fn build_get_device_flags() -> Vec<u8> {
-    build_frame(0x2c,&[])
+    build_frame(0x2c, &[])
 }
 
 // Command 0x2D
-pub fn build_unlock_device(
-    password:&[u8]
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_unlock_device(password: &[u8]) -> Result<Vec<u8>, ValidationError> {
     validate_raw_password(password)?;
 
-    Ok(build_frame(
-        0x2d,
-        password
-    ))
+    Ok(build_frame(0x2d, password))
 }
 
 // Command 0x2F
-pub fn build_lock_device(
-    password:&[u8]
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_lock_device(password: &[u8]) -> Result<Vec<u8>, ValidationError> {
     validate_raw_password(password)?;
 
-    Ok(build_frame(
-        0x2f,
-        password
-    ))
+    Ok(build_frame(0x2f, password))
 }
 
 // Command 0x30 (Set Compressor)
@@ -178,7 +118,6 @@ pub fn build_set_compressor(
     raw_knee: u16,
     raw_threshold: u16,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_output_channel(raw_channel)?;
     validate_raw_compressor_ratio(raw_ratio)?;
     validate_raw_attack(raw_attack)?;
@@ -216,7 +155,6 @@ pub fn build_low_pass(
     raw_freq: u16,
     raw_filter_type: u8,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_channel(raw_channel)?;
     validate_raw_frequency(raw_freq)?;
     validate_raw_crossover_filter(raw_filter_type)?;
@@ -225,12 +163,7 @@ pub fn build_low_pass(
 
     Ok(build_frame(
         0x31,
-        &[
-            raw_channel,
-            freq[0],
-            freq[1],
-            raw_filter_type,
-        ],
+        &[raw_channel, freq[0], freq[1], raw_filter_type],
     ))
 }
 
@@ -240,7 +173,6 @@ pub fn build_high_pass(
     raw_freq: u16,
     raw_filter_type: u8,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_channel(raw_channel)?;
     validate_raw_frequency(raw_freq)?;
     validate_raw_crossover_filter(raw_filter_type)?;
@@ -249,12 +181,7 @@ pub fn build_high_pass(
 
     Ok(build_frame(
         0x32,
-        &[
-            raw_channel,
-            freq[0],
-            freq[1],
-            raw_filter_type,
-        ],
+        &[raw_channel, freq[0], freq[1], raw_filter_type],
     ))
 }
 
@@ -268,7 +195,6 @@ pub fn build_peq_band(
     raw_filter_type: u8,
     bypass: u8,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_channel(raw_channel)?;
     validate_raw_peq_band(raw_channel, raw_band)?;
     validate_raw_eq_gain(raw_gain)?;
@@ -297,115 +223,53 @@ pub fn build_peq_band(
 }
 
 // Command 0x34 (Set Gain)
-pub fn build_gain(
-    channel: u8,
-    raw_gain: u16,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_gain(channel: u8, raw_gain: u16) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_gain(raw_gain)?;
 
     let gain = split_u16(raw_gain);
 
-    Ok(build_frame(
-        0x34,
-        &[
-            channel,
-            gain[0],
-            gain[1],
-        ],
-    ))
+    Ok(build_frame(0x34, &[channel, gain[0], gain[1]]))
 }
 
 // Command 0x35 (Set Mute)
-pub fn build_mute(
-    channel:u8,
-    muted:u8,
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_mute(channel: u8, muted: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_bool(muted)?;
 
-    Ok(build_frame(
-        0x35,
-        &[
-            channel,
-            muted,
-        ]
-    ))
+    Ok(build_frame(0x35, &[channel, muted]))
 }
 
 // Command 0x36 (Invert Gain)
-pub fn build_inverted_gain(
-    channel:u8,
-    inverted:u8,
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_inverted_gain(channel: u8, inverted: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_bool(inverted)?;
 
-    Ok(build_frame(
-        0x36,
-        &[
-            channel,
-            inverted,
-        ]
-    ))
+    Ok(build_frame(0x36, &[channel, inverted]))
 }
 
 // Command 0x38 (Set Delay)
-pub fn build_set_delay(
-    channel:u8,
-    delay:u8,
-)->Result<Vec<u8>,ValidationError>{
-
+pub fn build_set_delay(channel: u8, delay: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_channel_delay(delay)?;
 
-    Ok(build_frame(
-        0x38,
-        &[
-            channel,
-            0x00,
-            delay
-        ]
-    ))
+    Ok(build_frame(0x38, &[channel, 0x00, delay]))
 }
 
 // Command 0x39 (Set Input Source)
-pub fn build_set_input_source(
-    input_type: u8,
-    frequency: u8,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_set_input_source(input_type: u8, frequency: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_input_source(input_type)?;
     validate_raw_discrete_frequency(frequency)?;
 
-    Ok(build_frame(
-        0x39,
-        &[
-            input_type,
-            frequency,
-        ],
-    ))
+    Ok(build_frame(0x39, &[input_type, frequency]))
 }
 
 // Command 0x3A (Matrix Routing)
-pub fn build_matrix_routing(
-    output: u8,
-    input_bitmask: u8,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_matrix_routing(output: u8, input_bitmask: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_output_channel(output)?;
     validate_raw_matrix_bitmask(input_bitmask)?;
 
-    Ok(build_frame(
-        0x3A,
-        &[
-            output,
-            input_bitmask,
-        ],
-    ))
+    Ok(build_frame(0x3A, &[output, input_bitmask]))
 }
 
 // Command 0x3B (Link Channel)
@@ -413,52 +277,31 @@ pub fn build_link_channel(
     source_channel: u8,
     destination_channel_bitmask: u8,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_link_channel(source_channel, destination_channel_bitmask)?;
 
     Ok(build_frame(
         0x3B,
-        &[
-            source_channel,
-            destination_channel_bitmask,
-        ],
+        &[source_channel, destination_channel_bitmask],
     ))
 }
 
 // Command 0x3C (Bypass EQ)
-pub fn build_bypass_peq(
-    channel: u8,
-    bypass: u8,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_bypass_peq(channel: u8, bypass: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_bool(bypass)?;
 
-    Ok(build_frame(
-        0x3C,
-        &[
-            channel,
-            bypass,
-        ],
-    ))
+    Ok(build_frame(0x3C, &[channel, bypass]))
 }
 
 // Command 0x3D (Store Channel Name)
-pub fn build_store_channel_name(
-    channel: u8,
-    raw_name: &[u8],
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_store_channel_name(channel: u8, raw_name: &[u8]) -> Result<Vec<u8>, ValidationError> {
     validate_raw_channel(channel)?;
     validate_raw_channel_name(raw_name)?;
 
     let mut payload = vec![channel];
     payload.extend_from_slice(raw_name);
 
-    Ok(build_frame(
-        0x3D,
-        &payload,
-    ))
+    Ok(build_frame(0x3D, &payload))
 }
 
 // Command 0x3E (Set Gate Parameters)
@@ -469,7 +312,6 @@ pub fn build_set_gate(
     raw_hold: u16,
     raw_release: u16,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_input_channel(raw_channel)?;
     validate_raw_gate_threshold(raw_threshold)?;
     validate_raw_attack(raw_attack)?;
@@ -504,7 +346,6 @@ pub fn build_set_limiter(
     raw_attack: u16,
     raw_release: u16,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_output_channel(raw_channel)?;
     validate_raw_threshold(raw_threshold)?;
     validate_raw_attack(raw_attack)?;
@@ -532,10 +373,7 @@ pub fn build_set_limiter(
 
 // Command 0x40 (Get Level Meters)
 pub fn build_get_meter_levels() -> Vec<u8> {
-    build_frame(
-        0x40,
-        &[],
-    )
+    build_frame(0x40, &[])
 }
 
 // Command 0x41 (Set Matrix Gain)
@@ -544,7 +382,6 @@ pub fn build_matrix_gain(
     raw_output_channel: u8,
     raw_gain: u16,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_input_channel(raw_input_channel)?;
     validate_raw_output_channel(raw_output_channel)?;
     validate_raw_matrix_gain(raw_gain)?;
@@ -553,12 +390,7 @@ pub fn build_matrix_gain(
 
     Ok(build_frame(
         0x41,
-        &[
-            raw_output_channel,
-            raw_input_channel,
-            gain[0],
-            gain[1],
-        ],
+        &[raw_output_channel, raw_input_channel, gain[0], gain[1]],
     ))
 }
 
@@ -568,7 +400,6 @@ pub fn build_set_geq_band(
     raw_frequency_band: u8,
     raw_gain: u16,
 ) -> Result<Vec<u8>, ValidationError> {
-
     validate_raw_input_channel(raw_channel)?;
     validate_raw_discrete_frequency(raw_frequency_band)?;
     validate_raw_eq_gain(raw_gain)?;
@@ -577,43 +408,24 @@ pub fn build_set_geq_band(
 
     Ok(build_frame(
         0x48,
-        &[
-            raw_channel,
-            raw_frequency_band,
-            gain[0],
-            gain[1],
-        ],
+        &[raw_channel, raw_frequency_band, gain[0], gain[1]],
     ))
 }
 
 // Command 0x49 (Set GEQ Bypass)
-pub fn build_set_geq_bypass(
-    raw_channel: u8,
-    bypass: u8,
-) -> Result<Vec<u8>, ValidationError> {
-
+pub fn build_set_geq_bypass(raw_channel: u8, bypass: u8) -> Result<Vec<u8>, ValidationError> {
     validate_raw_input_channel(raw_channel)?;
     validate_raw_bool(bypass)?;
 
-    Ok(build_frame(
-        0x49,
-        &[
-            raw_channel,
-            bypass,
-        ],
-    ))
+    Ok(build_frame(0x49, &[raw_channel, bypass]))
 }
 
 #[cfg(test)]
 mod tests {
-    use super::*;
     use super::super::constants::*;
+    use super::*;
 
-    fn assert_frame(
-        frame: Vec<u8>,
-        expected_command: u8,
-        expected_payload: &[u8],
-    ) {
+    fn assert_frame(frame: Vec<u8>, expected_command: u8, expected_payload: &[u8]) {
         assert_eq!(frame[5], expected_command);
         assert_eq!(&frame[6..frame.len() - 3], expected_payload);
     }
@@ -627,86 +439,34 @@ mod tests {
 
     #[test]
     fn test_simple_commands() {
-        assert_frame(
-            build_handshake(),
-            0x10,
-            &[],
-        );
+        assert_frame(build_handshake(), 0x10, &[]);
 
-        assert_frame(
-            build_disconnect(),
-            0x11,
-            &[],
-        );
+        assert_frame(build_disconnect(), 0x11, &[]);
 
-        assert_frame(
-            build_acknowledgement(),
-            0x12,
-            &[],
-        );
+        assert_frame(build_acknowledgement(), 0x12, &[]);
 
-        assert_frame(
-            build_request_device_name(),
-            0x13,
-            &[],
-        );
+        assert_frame(build_request_device_name(), 0x13, &[]);
 
-        assert_frame(
-            build_get_current_preset(),
-            0x14,
-            &[],
-        );
+        assert_frame(build_get_current_preset(), 0x14, &[]);
 
-        assert_frame(
-            build_preset_modification_status(),
-            0x22,
-            &[],
-        );
+        assert_frame(build_preset_modification_status(), 0x22, &[]);
 
-        assert_frame(
-            build_factory_reset(),
-            0x23,
-            &[],
-        );
+        assert_frame(build_factory_reset(), 0x23, &[]);
 
-        assert_frame(
-            build_get_device_flags(),
-            0x2c,
-            &[],
-        );
+        assert_frame(build_get_device_flags(), 0x2c, &[]);
 
-        assert_frame(
-            build_get_meter_levels(),
-            0x40,
-            &[],
-        );
+        assert_frame(build_get_meter_levels(), 0x40, &[]);
     }
 
     #[test]
     fn test_preset_commands() {
-        assert_frame(
-            build_recall(5).unwrap(),
-            0x20,
-            &[5],
-        );
+        assert_frame(build_recall(5).unwrap(), 0x20, &[5]);
 
-        assert_frame(
-            build_store_current_configuration(3).unwrap(),
-            0x21,
-            &[3],
-        );
+        assert_frame(build_store_current_configuration(3).unwrap(), 0x21, &[3]);
 
-        assert_frame(
-            build_get_preset_name(2).unwrap(),
-            0x29,
-            &[2],
-        );
+        assert_frame(build_get_preset_name(2).unwrap(), 0x29, &[2]);
 
-        assert_frame(
-            build_config_chunk(1).unwrap(),
-            0x27,
-            &[1],
-        );
+        assert_frame(build_config_chunk(1).unwrap(), 0x27, &[1]);
 
         assert_frame(
             build_store_current_preset_name(b"TEST          ").unwrap(),
@@ -717,57 +477,27 @@ mod tests {
 
     #[test]
     fn test_device_lock_commands() {
-        assert_frame(
-            build_unlock_device(b"1234").unwrap(),
-            0x2d,
-            b"1234",
-        );
+        assert_frame(build_unlock_device(b"1234").unwrap(), 0x2d, b"1234");
 
-        assert_frame(
-            build_lock_device(b"1234").unwrap(),
-            0x2f,
-            b"1234",
-        );
+        assert_frame(build_lock_device(b"1234").unwrap(), 0x2f, b"1234");
     }
 
     #[test]
     fn test_set_delay_unit() {
-        assert_frame(
-            build_set_delay_unit(1).unwrap(),
-            0x15,
-            &[1],
-        );
+        assert_frame(build_set_delay_unit(1).unwrap(), 0x15, &[1]);
     }
 
     #[test]
     fn test_copy_channel() {
-        assert_frame(
-            build_copy_channel(1, 3).unwrap(),
-            0x2a,
-            &[1, 3],
-        );
+        assert_frame(build_copy_channel(1, 3).unwrap(), 0x2a, &[1, 3]);
     }
 
     #[test]
     fn test_compressor_frame() {
         assert_frame(
-            build_set_compressor(
-                5,
-                1,
-                300,
-                400,
-                2,
-                11,
-            ).unwrap(),
+            build_set_compressor(5, 1, 300, 400, 2, 11).unwrap(),
             0x30,
-            &[
-                5,
-                1, 0,
-                44, 1,
-                144, 1,
-                2, 0,
-                11, 0,
-            ],
+            &[5, 1, 0, 44, 1, 144, 1, 2, 0, 11, 0],
         );
     }
 
@@ -869,17 +599,9 @@ mod tests {
     #[test]
     fn test_delay_and_input() {
         assert_frame(
-            build_set_delay(
-                *CHANNELS_RANGE.end(),
-                *DELAY_RAW_RANGE.end(),
-            )
-            .unwrap(),
+            build_set_delay(*CHANNELS_RANGE.end(), *DELAY_RAW_RANGE.end()).unwrap(),
             0x38,
-            &[
-                *CHANNELS_RANGE.end(),
-                0x00,
-                *DELAY_RAW_RANGE.end(),
-            ],
+            &[*CHANNELS_RANGE.end(), 0x00, *DELAY_RAW_RANGE.end()],
         );
 
         assert_frame(
@@ -935,11 +657,7 @@ mod tests {
         expected.extend_from_slice(&name);
 
         assert_frame(
-            build_store_channel_name(
-                *CHANNELS_RANGE.start(),
-                &name,
-            )
-            .unwrap(),
+            build_store_channel_name(*CHANNELS_RANGE.start(), &name).unwrap(),
             0x3D,
             &expected,
         );
@@ -953,14 +671,7 @@ mod tests {
         let release = *RELEASE_RAW_RANGE.end();
 
         assert_frame(
-            build_set_gate(
-                *INPUT_CHANNELS.end(),
-                threshold,
-                attack,
-                hold,
-                release,
-            )
-            .unwrap(),
+            build_set_gate(*INPUT_CHANNELS.end(), threshold, attack, hold, release).unwrap(),
             0x3E,
             &[
                 *INPUT_CHANNELS.end(),
@@ -978,13 +689,7 @@ mod tests {
         let threshold = *THRESHOLD_RAW_RANGE.end();
 
         assert_frame(
-            build_set_limiter(
-                *OUTPUT_CHANNELS.end(),
-                threshold,
-                attack,
-                release,
-            )
-            .unwrap(),
+            build_set_limiter(*OUTPUT_CHANNELS.end(), threshold, attack, release).unwrap(),
             0x3F,
             &[
                 *OUTPUT_CHANNELS.end(),
@@ -1005,12 +710,7 @@ mod tests {
         let gain = *MATRIX_GAIN_RAW_RANGE.end();
 
         assert_frame(
-            build_matrix_gain(
-                *INPUT_CHANNELS.end(),
-                *OUTPUT_CHANNELS.end(),
-                gain,
-            )
-            .unwrap(),
+            build_matrix_gain(*INPUT_CHANNELS.end(), *OUTPUT_CHANNELS.end(), gain).unwrap(),
             0x41,
             &[
                 *OUTPUT_CHANNELS.end(),
@@ -1042,16 +742,9 @@ mod tests {
         );
 
         assert_frame(
-            build_set_geq_bypass(
-                *INPUT_CHANNELS.end(),
-                1,
-            )
-            .unwrap(),
+            build_set_geq_bypass(*INPUT_CHANNELS.end(), 1).unwrap(),
             0x49,
-            &[
-                *INPUT_CHANNELS.end(),
-                1,
-            ],
+            &[*INPUT_CHANNELS.end(), 1],
         );
     }
 }

src/dsp408/protocol/config.rs

@@ -6,11 +6,8 @@ use crate::{
     common::errors::DSPError,
     dsp408::{
         mapper,
+        protocol::{constants, reader::BinaryReader},
         types,
-        protocol::{
-            constants,
-            reader::BinaryReader,
-        },
     },
 };
 
@@ -37,9 +34,7 @@ fn read_gate(r: &mut BinaryReader) -> Result<types::Gate, DSPError> {
     })
 }
 
-fn read_geq(
-    r: &mut BinaryReader,
-) -> Result<types::GraphicEQ, DSPError> {
+fn read_geq(r: &mut BinaryReader) -> Result<types::GraphicEQ, DSPError> {
     let gains = types::DiscreteFrequency::iter()
         .map(|_| {
             let raw = r.read_u16()?;
@@ -53,10 +48,7 @@ fn read_geq(
     })
 }
 
-fn read_peq_chain(
-    r: &mut BinaryReader,
-    band_count: usize,
-) -> Result<types::PEQChain, DSPError> {
+fn read_peq_chain(r: &mut BinaryReader, band_count: usize) -> Result<types::PEQChain, DSPError> {
     let bands = (0..band_count)
         .map(|_| {
             Ok(types::PEQ {
@@ -75,9 +67,7 @@ fn read_peq_chain(
     })
 }
 
-fn read_crossover(
-    r: &mut BinaryReader,
-) -> Result<types::CrossoverFilters, DSPError> {
+fn read_crossover(r: &mut BinaryReader) -> Result<types::CrossoverFilters, DSPError> {
     let hp_freq = r.read_u16()?;
     let lp_freq = r.read_u16()?;
     let hp_filter = r.read_u8()?;
@@ -94,9 +84,7 @@ fn read_crossover(
     })
 }
 
-fn read_compressor(
-    r: &mut BinaryReader,
-) -> Result<types::Compressor, DSPError> {
+fn read_compressor(r: &mut BinaryReader) -> Result<types::Compressor, DSPError> {
     Ok(types::Compressor {
         ratio: mapper::raw_to_ratio(r.read_u16()?)?,
         attack: mapper::raw_to_attack_ms(r.read_u16()?)?,
@@ -106,9 +94,7 @@ fn read_compressor(
     })
 }
 
-fn read_limiter(
-    r: &mut BinaryReader,
-) -> Result<types::Limiter, DSPError> {
+fn read_limiter(r: &mut BinaryReader) -> Result<types::Limiter, DSPError> {
     let attack = mapper::raw_to_attack_ms(r.read_u16()?)?;
     let release = mapper::raw_to_release_ms(r.read_u16()?)?;
 
@@ -132,7 +118,8 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
 
     let mut input_channels = vec![types::InputChannelState::default(); types::InputChannel::COUNT];
 
-    let mut output_channels = vec![types::OutputChannelState::default(); types::OutputChannel::COUNT];
+    let mut output_channels =
+        vec![types::OutputChannelState::default(); types::OutputChannel::COUNT];
 
     let mut input_delays_raw: Vec<u8> = Vec::new();
     let mut output_delays_raw: Vec<u8> = Vec::new();
@@ -162,7 +149,10 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
 
         r.skip(1)?;
 
-        inp.linked_channels = mapper::raw_to_link_channels(mapper::channel_to_raw(types::Channel::Input(channel))?, r.read_u8()?)?;
+        inp.linked_channels = mapper::raw_to_link_channels(
+            mapper::channel_to_raw(types::Channel::Input(channel))?,
+            r.read_u8()?,
+        )?;
     }
 
     // ============================
@@ -175,10 +165,7 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
         r.skip(1)?;
 
         out.matrix_routes = types::MatrixRoutes {
-            connected:
-                mapper::raw_to_matrix(
-                    r.read_u8()?
-                )?,
+            connected: mapper::raw_to_matrix(r.read_u8()?)?,
 
             gains: (0..4)
                 .map(|_| {
@@ -206,43 +193,34 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
 
         r.skip(1)?;
 
-        out.linked_channels = mapper::raw_to_link_channels(mapper::channel_to_raw(types::Channel::Output(channel))?, r.read_u8()?)?;
+        out.linked_channels = mapper::raw_to_link_channels(
+            mapper::channel_to_raw(types::Channel::Output(channel))?,
+            r.read_u8()?,
+        )?;
     }
 
     // ============================
     // MUTE FLAGS
     // ============================
 
-    apply_flag(
-        &mut r,
-        &mut input_channels,
-        |ch, value| ch.mute = value,
-    )?;
+    apply_flag(&mut r, &mut input_channels, |ch, value| ch.mute = value)?;
 
-    apply_flag(
-        &mut r,
-        &mut output_channels,
-        |ch, value| ch.mute = value,
-    )?;
+    apply_flag(&mut r, &mut output_channels, |ch, value| ch.mute = value)?;
 
     // ============================
     // PEQ BYPASS FLAGS
     // ============================
 
     for inp in &mut input_channels {
-        apply_flag(
-            &mut r,
-            inp.peq_chain.bands.as_mut_slice(),
-            |band, value| band.bypass = value,
-        )?;
+        apply_flag(&mut r, inp.peq_chain.bands.as_mut_slice(), |band, value| {
+            band.bypass = value
+        })?;
     }
 
     for out in &mut output_channels {
-        apply_flag(
-            &mut r,
-            out.peq_chain.bands.as_mut_slice(),
-            |band, value| band.bypass = value,
-        )?;
+        apply_flag(&mut r, out.peq_chain.bands.as_mut_slice(), |band, value| {
+            band.bypass = value
+        })?;
     }
 
     // ============================
@@ -250,41 +228,27 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
     // ============================
 
     let input_source = types::InputSource {
-        r#type: mapper::raw_to_input_source(
-            r.read_u16()? as u8,
-        )?,
+        r#type: mapper::raw_to_input_source(r.read_u16()? as u8)?,
 
-        frequency: mapper::raw_to_frequency_value(
-            r.read_u16()? as u8,
-        )?,
+        frequency: mapper::raw_to_frequency_value(r.read_u16()? as u8)?,
     };
 
     // ============================
     // DELAY UNIT
     // ============================
 
-    let delay_unit = mapper::raw_to_delay_unit(
-        r.read_u16()? as u8,
-    )?;
+    let delay_unit = mapper::raw_to_delay_unit(r.read_u16()? as u8)?;
 
     // ============================
     // APPLY DELAYS
     // ============================
 
-    for (inp, raw_delay) in input_channels.iter_mut().zip(input_delays_raw)
-    {
-        inp.delay = mapper::raw_to_delay(
-            raw_delay,
-            delay_unit,
-        )?;
+    for (inp, raw_delay) in input_channels.iter_mut().zip(input_delays_raw) {
+        inp.delay = mapper::raw_to_delay(raw_delay, delay_unit)?;
     }
 
-    for (out, raw_delay) in output_channels.iter_mut().zip(output_delays_raw)
-    {
-        out.delay = mapper::raw_to_delay(
-            raw_delay,
-            delay_unit,
-        )?;
+    for (out, raw_delay) in output_channels.iter_mut().zip(output_delays_raw) {
+        out.delay = mapper::raw_to_delay(raw_delay, delay_unit)?;
     }
 
     // ============================
@@ -301,7 +265,6 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
         }
     }
 
-
     let output_peq_bitmap = r.read_u16()?;
 
     for (index, out) in output_channels.iter_mut().enumerate() {
@@ -325,19 +288,13 @@ pub fn decode_config(payload: &[u8]) -> Result<types::DSPConfigState, DSPError>
     let mut input_states = HashMap::new();
 
     for (channel, state) in types::InputChannel::iter().zip(input_channels) {
-        input_states.insert(
-            channel,
-            state,
-        );
+        input_states.insert(channel, state);
     }
 
     let mut output_states = HashMap::new();
 
     for (channel, state) in types::OutputChannel::iter().zip(output_channels) {
-        output_states.insert(
-            channel,
-            state,
-        );
+        output_states.insert(channel, state);
     }
 
     Ok(types::DSPConfigState {

src/dsp408/protocol/constants.rs

@@ -16,31 +16,31 @@ pub const CHANNELS_RANGE: RangeInclusive<u8> = 0x00..=0x0B;
 pub const INPUT_CHANNELS: RangeInclusive<u8> = 0x00..=0x03;
 pub const OUTPUT_CHANNELS: RangeInclusive<u8> = 0x04..=0x0B;
 
-pub const RATIO_RAW_RANGE:      RangeInclusive<u16> = 0x0000..=0x000F;
-pub const ATTACK_RAW_RANGE:     RangeInclusive<u16> = 0x0000..=0x03E6;
-pub const RELEASE_RAW_RANGE:    RangeInclusive<u16> = 0x0009..=0x0BB7;
-pub const KNEE_RAW_RANGE:       RangeInclusive<u16> = 0x0000..=0x000C;
-pub const THRESHOLD_RAW_RANGE:  RangeInclusive<u16> = 0x0000..=0x00DC;
+pub const RATIO_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x000F;
+pub const ATTACK_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x03E6;
+pub const RELEASE_RAW_RANGE: RangeInclusive<u16> = 0x0009..=0x0BB7;
+pub const KNEE_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x000C;
+pub const THRESHOLD_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x00DC;
 
-pub const FREQUENCY_RAW_RANGE:  RangeInclusive<u16> = 0x0000..=0x012C;
+pub const FREQUENCY_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x012C;
 
 pub const CROSSOVER_FILTER_RAW_RANGE: RangeInclusive<u8> = 0x00..=0x14;
 
-pub const EQ_GAIN_RAW_RANGE:    RangeInclusive<u16> = 0x0000..=0x00F0;
-pub const PEQ_Q_RAW_RANGE:      RangeInclusive<u8>  = 0x00..=0x64;
-pub const PEQ_INPUT_BAND_RANGE: RangeInclusive<u8>  = 0x00..=0x07;
-pub const PEQ_OUTPUT_BAND_RANGE:RangeInclusive<u8>  = 0x00..=0x08;
-pub const PEQ_FILTER_RAW_RANGE :RangeInclusive<u8>  = 0x00..=0x08;
+pub const EQ_GAIN_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x00F0;
+pub const PEQ_Q_RAW_RANGE: RangeInclusive<u8> = 0x00..=0x64;
+pub const PEQ_INPUT_BAND_RANGE: RangeInclusive<u8> = 0x00..=0x07;
+pub const PEQ_OUTPUT_BAND_RANGE: RangeInclusive<u8> = 0x00..=0x08;
+pub const PEQ_FILTER_RAW_RANGE: RangeInclusive<u8> = 0x00..=0x08;
 
-pub const CHANNEL_GAIN_RAW_RANGE:    RangeInclusive<u16> = 0x0000..=0x0190;
+pub const CHANNEL_GAIN_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x0190;
 
-pub const DELAY_RAW_RANGE:      RangeInclusive<u8>  = 0x00..=0xFF;
+pub const DELAY_RAW_RANGE: RangeInclusive<u8> = 0x00..=0xFF;
 
 pub const INPUT_SOURCE_TYPE_RAW_RANGE: RangeInclusive<u8> = 0x00..=0x03;
 
 pub const DISCRETE_FREQUENCY_RAW_RANGE: RangeInclusive<u8> = 0x00..=0x1E;
 
-pub const MATRIX_INPUT_MASK_RANGE:  RangeInclusive<u8> = 0x00..=0x0F;
+pub const MATRIX_INPUT_MASK_RANGE: RangeInclusive<u8> = 0x00..=0x0F;
 pub const MATRIX_INPUT_A_MASK: u8 = 0x01;
 pub const MATRIX_INPUT_B_MASK: u8 = 0x02;
 pub const MATRIX_INPUT_C_MASK: u8 = 0x04;
@@ -50,9 +50,9 @@ pub const CHANNEL_NAME_LENGTH: usize = 8;
 pub const CHANNEL_NAME_PADDING: u8 = 0x00;
 
 pub const GATE_THRESHOLD_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x00B4;
-pub const HOLD_RAW_RANGE:           RangeInclusive<u16> = 0x0000..=0x03E6;
+pub const HOLD_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x03E6;
 
-pub const MATRIX_GAIN_RAW_RANGE:    RangeInclusive<u16> = 0x0000..=0x0118;
+pub const MATRIX_GAIN_RAW_RANGE: RangeInclusive<u16> = 0x0000..=0x0118;
 
 pub fn input_link_mask(channel: u8) -> Option<u8> {
     match channel {

src/dsp408/protocol/frame.rs

@@ -65,8 +65,7 @@ pub fn extract_frame(data: &[u8]) -> Result<Frame, FrameError> {
         )));
     }
 
-    let footer = find_footer(data)
-        .ok_or_else(|| FrameError::new("Missing frame footer"))?;
+    let footer = find_footer(data).ok_or_else(|| FrameError::new("Missing frame footer"))?;
 
     let expected = checksum(&data[2..footer]);
     let received = data[data.len() - 1];
@@ -89,8 +88,7 @@ fn find_footer(data: &[u8]) -> Option<usize> {
         return None;
     }
 
-    (2..data.len() - 1)
-        .find(|&i| data[i] == 0x10 && data[i + 1] == 0x03)
+    (2..data.len() - 1).find(|&i| data[i] == 0x10 && data[i + 1] == 0x03)
 }
 
 #[cfg(test)]

src/dsp408/protocol/mod.rs

@@ -1,8 +1,8 @@
 mod reader;
 
-pub(crate) mod frame;
 pub(crate) mod commands;
-pub(crate) mod validators;
 pub(crate) mod config;
+pub(crate) mod frame;
+pub(crate) mod validators;
 
 pub mod constants;

src/dsp408/protocol/reader.rs

@@ -11,9 +11,7 @@ impl<'a> BinaryReader<'a> {
 
     pub fn pop(&mut self, n: usize) -> Result<&'a [u8], DSPError> {
         if self.data.len() < n {
-            return Err(DSPError::InvalidRequest(
-                "buffer underflow".into()
-            ));
+            return Err(DSPError::InvalidRequest("buffer underflow".into()));
         }
 
         let (value, rest) = self.data.split_at(n);
@@ -27,9 +25,7 @@ impl<'a> BinaryReader<'a> {
     }
 
     pub fn read_u16(&mut self) -> Result<u16, DSPError> {
-        Ok(u16::from_le_bytes(
-            self.pop(2)?.try_into().unwrap()
-        ))
+        Ok(u16::from_le_bytes(self.pop(2)?.try_into().unwrap()))
     }
 
     pub fn skip(&mut self, n: usize) -> Result<(), DSPError> {

src/dsp408/protocol/validators.rs

@@ -1,45 +1,33 @@
 use crate::{
     common::{
         errors::ValidationError,
-        validator::{
-            validate_ascii_padded,
-            validate_bitmask,
-            validate_range,
-        },
+        validator::{validate_ascii_padded, validate_bitmask, validate_range},
     },
     dsp408::protocol::constants::*,
 };
 
 pub fn validate_raw_delay_unit(raw_unit: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_unit,
-        DELAY_UNIT_RAW_RANGE,
-        || format!("Invalid delay unit: {:#04x}", raw_unit)
-    )
+    validate_range(raw_unit, DELAY_UNIT_RAW_RANGE, || {
+        format!("Invalid delay unit: {:#04x}", raw_unit)
+    })
 }
 
 pub fn validate_raw_preset_index(raw_index: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_index,
-        0..=PRESET_INDEX_MAX,
-        || format!("Invalid preset index {}", raw_index)
-    )
+    validate_range(raw_index, 0..=PRESET_INDEX_MAX, || {
+        format!("Invalid preset index {}", raw_index)
+    })
 }
 
 pub fn validate_raw_store_preset_index(raw_index: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_index,
-        1..=PRESET_INDEX_MAX,
-        || format!("Invalid preset index {}", raw_index)
-    )
+    validate_range(raw_index, 1..=PRESET_INDEX_MAX, || {
+        format!("Invalid preset index {}", raw_index)
+    })
 }
 
 pub fn validate_raw_get_preset_index(raw_index: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_index,
-        0..PRESET_INDEX_MAX,
-        || format!("Invalid preset index {}", raw_index)
-    )
+    validate_range(raw_index, 0..PRESET_INDEX_MAX, || {
+        format!("Invalid preset index {}", raw_index)
+    })
 }
 
 pub fn validate_raw_preset_name(raw_name: &[u8]) -> Result<(), ValidationError> {
@@ -47,58 +35,46 @@ pub fn validate_raw_preset_name(raw_name: &[u8]) -> Result<(), ValidationError>
         raw_name,
         PRESET_NAME_LENGTH,
         PRESET_NAME_PADDING,
-        "Preset name"
+        "Preset name",
     )
 }
 
 pub fn validate_raw_config_chunk_index(raw_index: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_index,
-        0..=CONFIG_CHUNK_INDEX_MAX,
-        || format!("Invalid config index: {:#04x}", raw_index)
-    )
+    validate_range(raw_index, 0..=CONFIG_CHUNK_INDEX_MAX, || {
+        format!("Invalid config index: {:#04x}", raw_index)
+    })
 }
 
 pub fn validate_raw_channel(channel: u8) -> Result<(), ValidationError> {
-    validate_range(
-        channel,
-        CHANNELS_RANGE,
-        || format!("Invalid Channel: {:#04x}", channel),
-    )
+    validate_range(channel, CHANNELS_RANGE, || {
+        format!("Invalid Channel: {:#04x}", channel)
+    })
 }
 
 pub fn validate_raw_input_channel(channel: u8) -> Result<(), ValidationError> {
-    validate_range(
-        channel,
-        INPUT_CHANNELS,
-        || format!("Invalid Channel: {:#04x}", channel),
-    )
+    validate_range(channel, INPUT_CHANNELS, || {
+        format!("Invalid Channel: {:#04x}", channel)
+    })
 }
 
 pub fn validate_raw_output_channel(channel: u8) -> Result<(), ValidationError> {
-    validate_range(
-        channel,
-        OUTPUT_CHANNELS,
-        || format!("Invalid Channel: {:#04x}", channel),
-    )
+    validate_range(channel, OUTPUT_CHANNELS, || {
+        format!("Invalid Channel: {:#04x}", channel)
+    })
 }
 
 pub fn validate_raw_copy_channels(source: u8, destination: u8) -> Result<(), ValidationError> {
-    validate_range(
-        source,
-        CHANNELS_RANGE,
-        || format!("Invalid source channel: {:#04x}", source),
-    )?;
+    validate_range(source, CHANNELS_RANGE, || {
+        format!("Invalid source channel: {:#04x}", source)
+    })?;
 
-    validate_range(
-        destination,
-        CHANNELS_RANGE,
-        || format!("Invalid destination channel: {:#04x}", destination),
-    )?;
+    validate_range(destination, CHANNELS_RANGE, || {
+        format!("Invalid destination channel: {:#04x}", destination)
+    })?;
 
     if source == destination {
         return Err(ValidationError::value(
-            "Source channel and destination channel can't be the same"
+            "Source channel and destination channel can't be the same",
         ));
     }
 
@@ -107,7 +83,7 @@ pub fn validate_raw_copy_channels(source: u8, destination: u8) -> Result<(), Val
 
     if source_is_input != destination_is_input {
         return Err(ValidationError::value(
-            "Channels need to be both inputs or outputs"
+            "Channels need to be both inputs or outputs",
         ));
     }
 
@@ -115,150 +91,111 @@ pub fn validate_raw_copy_channels(source: u8, destination: u8) -> Result<(), Val
 }
 
 pub fn validate_raw_password(password: &[u8]) -> Result<(), ValidationError> {
-    validate_ascii_padded(
-        password,
-        PASSWORD_LENGTH,
-        PASSWORD_PADDING,
-        "Password"
-    )
+    validate_ascii_padded(password, PASSWORD_LENGTH, PASSWORD_PADDING, "Password")
 }
 
 pub fn validate_raw_compressor_ratio(raw_ratio: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_ratio,
-        RATIO_RAW_RANGE,
-        || format!("Invalid compressor ratio: {:#06x}", raw_ratio),
-    )
+    validate_range(raw_ratio, RATIO_RAW_RANGE, || {
+        format!("Invalid compressor ratio: {:#06x}", raw_ratio)
+    })
 }
 
 pub fn validate_raw_attack(raw_attack: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_attack,
-        ATTACK_RAW_RANGE,
-        || format!("Invalid attack: {:#06x}", raw_attack),
-    )
+    validate_range(raw_attack, ATTACK_RAW_RANGE, || {
+        format!("Invalid attack: {:#06x}", raw_attack)
+    })
 }
 
 pub fn validate_raw_release(raw_release: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_release,
-        RELEASE_RAW_RANGE,
-        || format!("Invalid release: {:#06x}", raw_release),
-    )
+    validate_range(raw_release, RELEASE_RAW_RANGE, || {
+        format!("Invalid release: {:#06x}", raw_release)
+    })
 }
 
 pub fn validate_raw_compressor_knee(raw_knee: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_knee,
-        KNEE_RAW_RANGE,
-        || format!("Invalid compressor knee: {:#06x}", raw_knee),
-    )
+    validate_range(raw_knee, KNEE_RAW_RANGE, || {
+        format!("Invalid compressor knee: {:#06x}", raw_knee)
+    })
 }
 
 pub fn validate_raw_threshold(raw_threshold: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_threshold,
-        THRESHOLD_RAW_RANGE,
-        || format!("Invalid compressor threshold: {:#06x}", raw_threshold),
-    )
+    validate_range(raw_threshold, THRESHOLD_RAW_RANGE, || {
+        format!("Invalid compressor threshold: {:#06x}", raw_threshold)
+    })
 }
 
 pub fn validate_raw_frequency(raw_freq: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_freq,
-        FREQUENCY_RAW_RANGE,
-        || format!("Invalid frequency: {:#06x}", raw_freq),
-    )
+    validate_range(raw_freq, FREQUENCY_RAW_RANGE, || {
+        format!("Invalid frequency: {:#06x}", raw_freq)
+    })
 }
 
 pub fn validate_raw_crossover_filter(raw_filter_type: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_filter_type,
-        CROSSOVER_FILTER_RAW_RANGE,
-        || format!("Invalid filter: {:#04x}", raw_filter_type),
-    )
+    validate_range(raw_filter_type, CROSSOVER_FILTER_RAW_RANGE, || {
+        format!("Invalid filter: {:#04x}", raw_filter_type)
+    })
 }
 
 pub fn validate_raw_peq_band(raw_channel: u8, raw_band: u8) -> Result<(), ValidationError> {
     if INPUT_CHANNELS.contains(&raw_channel) {
-        validate_range(
-            raw_band,
-            PEQ_INPUT_BAND_RANGE,
-            || format!("Invalid input PEQ band: {:#04x}", raw_band),
-        )?;
+        validate_range(raw_band, PEQ_INPUT_BAND_RANGE, || {
+            format!("Invalid input PEQ band: {:#04x}", raw_band)
+        })?;
     } else if OUTPUT_CHANNELS.contains(&raw_channel) {
-        validate_range(
-            raw_band,
-            PEQ_OUTPUT_BAND_RANGE,
-            || format!("Invalid output PEQ band: {:#04x}", raw_band),
-        )?;
+        validate_range(raw_band, PEQ_OUTPUT_BAND_RANGE, || {
+            format!("Invalid output PEQ band: {:#04x}", raw_band)
+        })?;
     }
 
     Ok(())
 }
 
 pub fn validate_raw_peq_q(raw_q: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_q,
-        PEQ_Q_RAW_RANGE,
-        || format!("Invalid PEQ Q: {:#04x}", raw_q),
-    )
+    validate_range(raw_q, PEQ_Q_RAW_RANGE, || {
+        format!("Invalid PEQ Q: {:#04x}", raw_q)
+    })
 }
 
 pub fn validate_raw_peq_filter(raw_filter_type: u8) -> Result<(), ValidationError> {
-    validate_range(
-        raw_filter_type,
-        PEQ_FILTER_RAW_RANGE,
-        || format!("Invalid PEQ filter: {:#04x}", raw_filter_type),
-    )
+    validate_range(raw_filter_type, PEQ_FILTER_RAW_RANGE, || {
+        format!("Invalid PEQ filter: {:#04x}", raw_filter_type)
+    })
 }
 
 pub fn validate_raw_eq_gain(raw_gain: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_gain,
-        EQ_GAIN_RAW_RANGE,
-        || format!("Invalid EQ gain: {:#06x}", raw_gain),
-    )
+    validate_range(raw_gain, EQ_GAIN_RAW_RANGE, || {
+        format!("Invalid EQ gain: {:#06x}", raw_gain)
+    })
 }
 
 pub fn validate_raw_gain(raw_gain: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_gain,
-        CHANNEL_GAIN_RAW_RANGE,
-        || format!("Invalid channel gain: {:#06x}", raw_gain),
-    )
+    validate_range(raw_gain, CHANNEL_GAIN_RAW_RANGE, || {
+        format!("Invalid channel gain: {:#06x}", raw_gain)
+    })
 }
 
 pub fn validate_raw_channel_delay(delay: u8) -> Result<(), ValidationError> {
-    validate_range(
-        delay,
-        DELAY_RAW_RANGE,
-        || format!("Invalid channel delay: {:#04x}", delay)
-    )
+    validate_range(delay, DELAY_RAW_RANGE, || {
+        format!("Invalid channel delay: {:#04x}", delay)
+    })
 }
 
 pub fn validate_raw_input_source(input_type: u8) -> Result<(), ValidationError> {
-    validate_range(
-        input_type,
-        INPUT_SOURCE_TYPE_RAW_RANGE,
-        || format!("Invalid source type: {:#04x}", input_type),
-    )
+    validate_range(input_type, INPUT_SOURCE_TYPE_RAW_RANGE, || {
+        format!("Invalid source type: {:#04x}", input_type)
+    })
 }
 
 pub fn validate_raw_discrete_frequency(frequency: u8) -> Result<(), ValidationError> {
-    validate_range(
-        frequency,
-        DISCRETE_FREQUENCY_RAW_RANGE,
-        || format!("Invalid frequency: {:#04x}", frequency),
-    )
+    validate_range(frequency, DISCRETE_FREQUENCY_RAW_RANGE, || {
+        format!("Invalid frequency: {:#04x}", frequency)
+    })
 }
 
 pub fn validate_raw_matrix_bitmask(input_bitmask: u8) -> Result<(), ValidationError> {
-    validate_range(
-        input_bitmask,
-        MATRIX_INPUT_MASK_RANGE,
-        || format!("Invalid matrix bitmask: {:#04x}", input_bitmask),
-    )
+    validate_range(input_bitmask, MATRIX_INPUT_MASK_RANGE, || {
+        format!("Invalid matrix bitmask: {:#04x}", input_bitmask)
+    })
 }
 
 pub fn validate_raw_link_channel(
@@ -273,20 +210,18 @@ pub fn validate_raw_link_channel(
         output_link_mask(source_channel)
     }
     .ok_or_else(|| {
-        ValidationError::value(
-            format!("Invalid link source channel: {:#04x}", source_channel)
-        )
+        ValidationError::value(format!(
+            "Invalid link source channel: {:#04x}",
+            source_channel
+        ))
     })?;
 
-    validate_bitmask(
-        destination_channel_bitmask,
-        allowed_mask,
-        || format!(
+    validate_bitmask(destination_channel_bitmask, allowed_mask, || {
+        format!(
             "Invalid link bitmask {:#04x} for source channel {:#04x}",
-            destination_channel_bitmask,
-            source_channel
-        ),
-    )
+            destination_channel_bitmask, source_channel
+        )
+    })
 }
 
 pub fn validate_raw_channel_name(raw_name: &[u8]) -> Result<(), ValidationError> {
@@ -299,35 +234,27 @@ pub fn validate_raw_channel_name(raw_name: &[u8]) -> Result<(), ValidationError>
 }
 
 pub fn validate_raw_gate_threshold(raw_threshold: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_threshold,
-        GATE_THRESHOLD_RAW_RANGE,
-        || format!("Invalid gate threshold: {:#06x}", raw_threshold),
-    )
+    validate_range(raw_threshold, GATE_THRESHOLD_RAW_RANGE, || {
+        format!("Invalid gate threshold: {:#06x}", raw_threshold)
+    })
 }
 
 pub fn validate_raw_hold(raw_hold: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_hold,
-        HOLD_RAW_RANGE,
-        || format!("Invalid hold: {:#06x}", raw_hold),
-    )
+    validate_range(raw_hold, HOLD_RAW_RANGE, || {
+        format!("Invalid hold: {:#06x}", raw_hold)
+    })
 }
 
 pub fn validate_raw_matrix_gain(raw_gain: u16) -> Result<(), ValidationError> {
-    validate_range(
-        raw_gain,
-        MATRIX_GAIN_RAW_RANGE,
-        || format!("Invalid matrix gain: {:#06x}", raw_gain),
-    )
+    validate_range(raw_gain, MATRIX_GAIN_RAW_RANGE, || {
+        format!("Invalid matrix gain: {:#06x}", raw_gain)
+    })
 }
 
 pub fn validate_raw_bool(value: u8) -> Result<(), ValidationError> {
-    validate_range(
-        value,
-        0..=1,
-        || format!("Invalid bool value: {:#04x}", value),
-    )
+    validate_range(value, 0..=1, || {
+        format!("Invalid bool value: {:#04x}", value)
+    })
 }
 
 #[cfg(test)]

src/dsp408/types.rs

@@ -1,5 +1,5 @@
 use std::{collections::HashMap, net::IpAddr};
-use strum_macros::{EnumIter, EnumCount};
+use strum_macros::{EnumCount, EnumIter};
 
 // ------ Enums ------
 
@@ -354,19 +354,13 @@ pub struct DSPConfigState {
 }
 
 impl DSPConfigState {
-    pub fn input_state_mut(
-        &mut self,
-        channel: InputChannel,
-    ) -> &mut InputChannelState {
+    pub fn input_state_mut(&mut self, channel: InputChannel) -> &mut InputChannelState {
         self.input_states
             .get_mut(&channel)
             .expect("Invalid input channel state")
     }
 
-    pub fn output_state_mut(
-        &mut self,
-        channel: OutputChannel,
-    ) -> &mut OutputChannelState {
+    pub fn output_state_mut(&mut self, channel: OutputChannel) -> &mut OutputChannelState {
         self.output_states
             .get_mut(&channel)
             .expect("Invalid output channel state")

src/main.rs

@@ -5,14 +5,9 @@ use dsp_thomann::dsp408::DSP408;
 use dsp_thomann::dsp408::types;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
-
     let host = IpAddr::from_str("192.168.49.30")?;
 
-    let mut dsp = DSP408::new(
-        host,
-        9761,
-        1,
-    )?;
+    let mut dsp = DSP408::new(host, 9761, 1)?;
 
     println!("Connecting to DSP...");
     match dsp.connect() {
@@ -35,6 +30,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     dsp.disconnect();
     println!("Disconnected");
 
-
     Ok(())
 }