fmt, update deps, random tweaks

Cargo.lock

@@ -68,9 +68,9 @@ dependencies = [
 
 [[package]]
 name = "i2c-linux-sys"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b70fd3d30157850c87f4c7c09c0857d9c2e8c996bcbe23ec1299126e0479ec"
+checksum = "55cd060ed0016621d3da4ed3a23b0158084de90d1f3a8e59f3d391aacd3bbcf8"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -79,9 +79,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.121"
+version = "0.2.125"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
+checksum = "5916d2ae698f6de9bfb891ad7a8d65c09d232dc58cc4ac433c7da3b2fd84bc2b"
 
 [[package]]
 name = "libudev-sys"
@@ -104,9 +104,9 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "minimal-lexical"
@@ -126,9 +126,9 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "resize-slice"

flake.lock

@@ -6,11 +6,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1647857022,
+        "lastModified": 1649691969,
-        "narHash": "sha256-Aw70NWLOIwKhT60MHDGjgWis3DP3faCzr6ap9CSayek=",
+        "narHash": "sha256-nY1aUWIyh3TcGVo3sn+3vyCh+tOiEZL4JtMX3aOZSeY=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "0a5ff74dacb9ea22614f64e61aeb3ca0bf0e7311",
+        "rev": "e22633b05fec2fe196888c593d4d9b3f4f648a25",
         "type": "github"
       },
       "original": {
@@ -36,11 +36,26 @@
     },
     "flake-utils_2": {
       "locked": {
-        "lastModified": 1648297722,
+        "lastModified": 1649676176,
-        "narHash": "sha256-W+qlPsiZd8F3XkzXOzAoR+mpFqzm3ekQkJNa+PIh1BQ=",
+        "narHash": "sha256-OWKJratjt2RW151VUlJPRALb7OU2S5s+f0vLj4o1bHM=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "0f8662f1319ad6abf89b3380dd2722369fc51ade",
+        "rev": "a4b154ebbdc88c8498a5c7b01589addc9e9cb678",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1637014545,
+        "narHash": "sha256-26IZAc5yzlD9FlDT54io1oqG/bBoyka+FJk5guaX4x4=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "bba5dcc8e0b20ab664967ad83d24d64cb64ec4f4",
         "type": "github"
       },
       "original": {
@@ -54,11 +69,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1648544490,
+        "lastModified": 1649096192,
-        "narHash": "sha256-EoBDcccV70tfz2LAs5lK0BjC7en5mzUVlgLsd5E6DW4=",
+        "narHash": "sha256-7O8e+eZEYeU+ET98u/zW5epuoN/xYx9G+CIh4DjZVzY=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "e30ef9a5ce9b3de8bb438f15829c50f9525ca730",
+        "rev": "d626f73332a8f587b613b0afe7293dd0777be07d",
         "type": "github"
       },
       "original": {
@@ -109,12 +124,48 @@
         "type": "indirect"
       }
     },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1637453606,
+        "narHash": "sha256-Gy6cwUswft9xqsjWxFYEnx/63/qzaFUwatcbV5GF/GQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8afc4e543663ca0a6a4f496262cd05233737e732",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "devshell": "devshell",
         "flake-utils": "flake-utils_2",
         "naersk": "naersk",
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": "nixpkgs_3",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs_4"
+      },
+      "locked": {
+        "lastModified": 1649644592,
+        "narHash": "sha256-q4vQ54pmCC+b5+bdsH2/90jIeiydTAJhF2IvP13r3yA=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "4770c6c6cb518d2c5b660c5099816c3512d8bdad",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -4,12 +4,17 @@
   inputs.devshell.url = "github:numtide/devshell";
   inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.naersk.url = "github:nix-community/naersk";
+  inputs.rust-overlay.url = "github:oxalica/rust-overlay";
 
-  outputs = { self, flake-utils, devshell, nixpkgs, naersk }:
+  outputs = { self, flake-utils, devshell, nixpkgs, naersk, rust-overlay }:
     flake-utils.lib.eachDefaultSystem (system: let
-      pkgs = nixpkgs.legacyPackages."${system}";
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [ (import rust-overlay) ];
+      };
       naersk-lib = naersk.lib."${system}";
     in {
+      /*
       defaultPackage = naersk-lib.buildPackage {
         pname = "ddcmqtt";
         root = ./.;
@@ -28,8 +33,8 @@
           nativeBuildInputs = with pkgs; [ libudev pkgconfig ];
         };
       */
-      devshell = pkgs.mkShell{
+      devShell = pkgs.mkShell{
-        nativeBuildInputs = with pkgs; [ rustc cargo libudev pkgconfig ];
+        nativeBuildInputs = with pkgs; [ rust-bin.stable.latest.default libudev pkgconfig ];
       };
     });
 }

src/bin/ddcmqtt.rs

@@ -1,7 +1,5 @@
 use ::ddcmqtt::{main as main_, StdError};
 
-
 fn main() -> StdError<()> {
     main_()
 }
-

src/bin/setmon.rs

@@ -1,7 +1,7 @@
-use ddc_i2c::{I2cDeviceEnumerator, I2cDeviceDdc};
 use ddc::Ddc;
+use ddc_i2c::{I2cDeviceDdc, I2cDeviceEnumerator};
 
-use ::ddcmqtt::{StdError};
+use ::ddcmqtt::StdError;
 
 fn main() -> StdError<()> {
     let args_: Vec<_> = std::env::args().skip(1).collect();
@@ -10,14 +10,14 @@ fn main() -> StdError<()> {
         ["brightness", arg] => ddc_all(0x10, arg.parse::<u16>()?),
         ["input", arg] => ddc_all(0x60, arg.parse::<u16>()?),
         _ => Err("Bad usage".into()),
-
     }?;
     Ok(())
 }
 
 fn ddc_all(feat: u8, val: u16) -> StdError<()> {
-    for mut display in I2cDeviceEnumerator::new()? {
+    let mut m1 = ddc_i2c::from_i2c_device("/dev/i2c-20")?;
-        display.set_vcp_feature(feat, val)?;
+    let mut m2 = ddc_i2c::from_i2c_device("/dev/i2c-21")?;
-    }
+    m1.set_vcp_feature(feat, val)?;
+    m2.set_vcp_feature(feat, val)?;
     Ok(())
 }

src/lib.rs

@@ -1,14 +1,12 @@
-#![allow(unreachable_code)]
 use ddc::Ddc;
-use ddc_i2c::{I2cDeviceEnumerator, I2cDeviceDdc};
+use ddc_i2c::{I2cDeviceDdc, I2cDeviceEnumerator};
-use rosc;
-use std::net::UdpSocket;
-use std::thread;
-use std::sync::mpsc::{channel, Receiver, Sender};
-use std::time::{Duration, Instant};
 use std::collections::HashMap;
-
 use std::error::Error;
+use std::net::UdpSocket;
+use std::sync::mpsc::{channel, Receiver, Sender};
+use std::thread;
+use std::time::{Duration, Instant};
+use rosc;
 
 pub type StdError<T> = Result<T, Box<dyn Error>>;
 
@@ -18,7 +16,7 @@ enum Command {
 
 enum MonitorCommand {
     Brightness(u8),
-    Input(u8)
+    Input(u8),
 }
 
 impl MonitorCommand {
@@ -37,7 +35,6 @@ impl MonitorCommand {
     }
 }
 
-
 // Run an i2c command handler for a specific i2c device, rate limiting each type of command
 fn run_i2c(mut dev: I2cDeviceDdc, command_channel: Receiver<MonitorCommand>) {
     let mut last_sent_command: HashMap<&str, Option<Instant>> = HashMap::new();
@@ -52,7 +49,7 @@ fn run_i2c(mut dev: I2cDeviceDdc, command_channel: Receiver<MonitorCommand>) {
         match cmd {
             MonitorCommand::Brightness(b) => dev.set_vcp_feature(0x10, b.into()).unwrap(),
             // Hack - add 15 to align with DELL monitors
-            MonitorCommand::Input(i) => dev.set_vcp_feature(0x60, (i+15).into()).unwrap(),
+            MonitorCommand::Input(i) => dev.set_vcp_feature(0x60, (i + 15).into()).unwrap(),
         }
         last_sent_command.insert(cmd.cmd_str(), Some(Instant::now()));
     }
@@ -61,24 +58,29 @@ fn run_i2c(mut dev: I2cDeviceDdc, command_channel: Receiver<MonitorCommand>) {
 pub fn main() -> StdError<()> {
     let displays = I2cDeviceEnumerator::new().unwrap().collect::<Vec<_>>();
     println!("Enumerated {} displays", displays.len());
-    let txes: Vec<_> = displays.into_iter().map(|d| {
+    let txes: Vec<_> = displays
-        let (tx, rx) = channel();
+        .into_iter()
-        thread::spawn(move|| run_i2c(d, rx));
+        .map(|d| {
-        tx
+            let (tx, rx) = channel();
-    }).collect();
+            thread::spawn(move || run_i2c(d, rx));
+            tx
+        })
+        .collect();
     let sock = UdpSocket::bind("0.0.0.0:1234").unwrap();
     let mut buf = [0u8; rosc::decoder::MTU];
 
     loop {
-        let (size, addr)  = sock.recv_from(&mut buf).unwrap();
+        let (size, addr) = sock.recv_from(&mut buf).unwrap();
         println!("Got {} bytes from {}", size, addr);
         let (_, pack) = rosc::decoder::decode_udp(&buf[..size]).unwrap();
         match pack {
             rosc::OscPacket::Message(msg) => {
                 match osc_message_to_command(msg) {
-                    Ok(cmd) => if let Err(e) = handle_cmd(cmd, &txes) {
+                    Ok(cmd) => {
-                        println!("Error handling command: {:?}", e);
+                        if let Err(e) = handle_cmd(cmd, &txes) {
-                    },
+                            println!("Error handling command: {:?}", e);
+                        }
+                    }
                     Err(e) => println!("Unrecognised OSC command: {:?}", e),
                 };
             }
@@ -103,13 +105,18 @@ fn osc_message_to_command(msg: rosc::OscMessage) -> StdError<Command> {
         ["monitor", idx, control] => {
             println!("Monitor {}, control {}, args {:?}", idx, control, msg.args);
             let command = match *control {
-                "brightness" => Some(MonitorCommand::Brightness((msg.args[0].clone().float().unwrap() * 100.0) as u8)),
+                "brightness" => Some(MonitorCommand::Brightness(
-                "input" => Some(MonitorCommand::Input((msg.args[0].clone().int().unwrap()) as u8)),
+                    (msg.args[0].clone().float().unwrap() * 100.0) as u8,
+                )),
+                "input" => Some(MonitorCommand::Input(
+                    (msg.args[0].clone().int().unwrap()) as u8,
+                )),
                 _ => None,
-            }.ok_or(format!("Unrecognised monitor control: {}", *control))?;
+            }
+            .ok_or(format!("Unrecognised monitor control: {}", *control))?;
             let idx = idx.parse::<usize>().or(Err("Bad monitor index"))?;
             Ok(Command::Monitor((idx, command)))
-        },
+        }
         _ => Err("Unsupported osc address, ignoring".into()),
     }
 }