battery/dgpu: Add connected outputs to list

Cargo.lock

@@ -844,6 +844,7 @@ name = "cosmic-applet-battery"
 version = "0.1.0"
 dependencies = [
  "cosmic-time",
+ "drm 0.11.1",
  "futures",
  "i18n-embed 0.13.9",
  "i18n-embed-fl 0.6.7",
@@ -1606,21 +1607,44 @@ checksum = "97fb1b703ffbc7ebd216eba7900008049a56ace55580ecb2ee7fa801e8d8be87"
 dependencies = [
  "bitflags 2.4.2",
  "bytemuck",
- "drm-ffi",
+ "drm-ffi 0.6.0",
  "drm-fourcc",
  "nix 0.27.1",
 ]
 
+[[package]]
+name = "drm"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0f8a69e60d75ae7dab4ef26a59ca99f2a89d4c142089b537775ae0c198bdcde"
+dependencies = [
+ "bitflags 2.4.2",
+ "bytemuck",
+ "drm-ffi 0.7.1",
+ "drm-fourcc",
+ "rustix 0.38.30",
+]
+
 [[package]]
 name = "drm-ffi"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba7d1c19c4b6270e89d59fb27dc6d02a317c658a8a54e54781e1db9b5947595d"
 dependencies = [
- "drm-sys",
+ "drm-sys 0.5.0",
  "nix 0.27.1",
 ]
 
+[[package]]
+name = "drm-ffi"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41334f8405792483e32ad05fbb9c5680ff4e84491883d2947a4757dc54cb2ac6"
+dependencies = [
+ "drm-sys 0.6.1",
+ "rustix 0.38.30",
+]
+
 [[package]]
 name = "drm-fourcc"
 version = "2.2.0"
@@ -1633,6 +1657,16 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a4f1c0468062a56cd5705f1e3b5409eb286d5596a2028ec8e947595d7e715ae"
 
+[[package]]
+name = "drm-sys"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d09ff881f92f118b11105ba5e34ff8f4adf27b30dae8f12e28c193af1c83176"
+dependencies = [
+ "libc",
+ "linux-raw-sys 0.6.4",
+]
+
 [[package]]
 name = "either"
 version = "1.9.0"
@@ -3241,6 +3275,12 @@ version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0b5399f6804fbab912acbd8878ed3532d506b7c951b8f9f164ef90fef39e3f4"
+
 [[package]]
 name = "locale_config"
 version = "0.3.0"
@@ -4804,7 +4844,7 @@ dependencies = [
  "cfg_aliases",
  "cocoa",
  "core-graphics",
- "drm",
+ "drm 0.10.0",
  "fastrand 2.0.1",
  "foreign-types",
  "js-sys",

cosmic-applet-battery/Cargo.toml

@@ -18,4 +18,5 @@ i18n-embed = { version = "0.13.4", features = ["fluent-system", "desktop-request
 i18n-embed-fl = "0.6.4"
 rust-embed = "6.3.0"
 tokio = { version = "1.17.0", features = ["sync", "rt", "rt-multi-thread", "fs", "macros"] }
-udev = "0.8"
+udev = "0.8"
+drm = "0.11.1"

cosmic-applet-battery/src/app.rs

@@ -2,7 +2,7 @@ use crate::backlight::{
     screen_backlight_subscription, ScreenBacklightRequest, ScreenBacklightUpdate,
 };
 use crate::config;
-use crate::dgpu::{dgpu_subscription, App, GpuUpdate};
+use crate::dgpu::{dgpu_subscription, Entry, GpuUpdate};
 use crate::fl;
 use crate::power_daemon::{
     power_profile_subscription, Power, PowerProfileRequest, PowerProfileUpdate,
@@ -65,7 +65,7 @@ static MAX_CHARGE: Lazy<id::Toggler> = Lazy::new(id::Toggler::unique);
 struct GPUData {
     name: String,
     toggled: bool,
-    app_list: Option<Vec<App>>,
+    app_list: Option<Vec<Entry>>,
 }
 
 #[derive(Clone, Default)]
@@ -159,7 +159,7 @@ enum Message {
     UpdateScreenBrightness(f64),
     InitKbdBacklight(UnboundedSender<KeyboardBacklightRequest>, f64),
     InitScreenBacklight(UnboundedSender<ScreenBacklightRequest>, f64),
-    GpuOn(PathBuf, String, Option<Vec<App>>),
+    GpuOn(PathBuf, String, Option<Vec<Entry>>),
     GpuOff(PathBuf),
     ToggleGpuApps(PathBuf),
     Errored(String),

cosmic-applet-battery/src/dgpu.rs

@@ -3,12 +3,13 @@ use std::{
     fmt::{self, Debug},
     hash::Hash,
     io,
-    os::fd::AsRawFd,
+    os::fd::{AsFd, AsRawFd},
     path::{Path, PathBuf},
     time::Duration,
 };
 
 use cosmic::iced::{self, subscription};
+use drm::control::Device as ControlDevice;
 use futures::{FutureExt, SinkExt};
 use tokio::{
     io::unix::AsyncFd,
@@ -126,7 +127,7 @@ impl GpuMonitor {
 }
 
 #[derive(Debug, Clone)]
-pub struct App {
+pub struct Entry {
     pub name: String,
     pub icon: Option<String>,
     pub secondary: String,
@@ -140,7 +141,45 @@ pub struct RunningApp {
 }
 
 impl Gpu {
-    async fn app_list(&self, running_apps: &[RunningApp]) -> Option<Vec<App>> {
+    async fn connected_outputs(&self) -> Option<Vec<Entry>> {
+        let path = self.path.clone();
+        spawn_blocking(move || {
+            struct Device(std::fs::File);
+            impl AsFd for Device {
+                fn as_fd(&self) -> std::os::unix::prelude::BorrowedFd<'_> {
+                    self.0.as_fd()
+                }
+            }
+            impl drm::Device for Device {}
+            impl ControlDevice for Device {}
+
+            let device = Device(std::fs::File::open(path).ok()?);
+            let resources = device.resource_handles().ok()?;
+
+            let outputs = resources
+                .connectors
+                .into_iter()
+                .filter_map(|conn| device.get_connector(conn, false).ok())
+                .filter(|info| info.state() == drm::control::connector::State::Connected)
+                .map(|info| Entry {
+                    name: format!(
+                        "Output @ {}:{}",
+                        info.interface().as_str(),
+                        info.interface_id()
+                    ),
+                    icon: Some("display-symbolic".to_string()),
+                    secondary: String::new(),
+                })
+                .collect();
+            // TODO read and parse edid with libdisplay-info and display output manufacture/model
+
+            Some(outputs)
+        })
+        .await
+        .ok()?
+    }
+
+    async fn app_list(&self, running_apps: &[RunningApp]) -> Option<Vec<Entry>> {
         match self.driver.as_ref().and_then(|s| s.to_str()) {
             Some("nvidia") => {
                 // figure out bus path for calling nvidia-smi
@@ -190,13 +229,13 @@ impl Gpu {
                                 .iter()
                                 .find(|running_app| running_app.executable_name == process_name)
                             {
-                                App {
+                                Entry {
                                     name: application.name.clone(),
                                     icon: application.icon.clone(),
                                     secondary: String::new(),
                                 }
                             } else {
-                                App {
+                                Entry {
                                     name: process_name.to_string(),
                                     icon: None,
                                     secondary: pid.to_string(),
@@ -235,13 +274,13 @@ impl Gpu {
                                 .iter()
                                 .find(|running_app| running_app.executable_name == executable)
                             {
-                                Some(App {
+                                Some(Entry {
                                     name: application.name.clone(),
                                     icon: application.icon.clone(),
                                     secondary: String::new(),
                                 })
                             } else {
-                                Some(App {
+                                Some(Entry {
                                     name: executable,
                                     icon: None,
                                     secondary: pid.to_string(),
@@ -351,7 +390,7 @@ pub enum State {
 #[derive(Debug)]
 pub enum GpuUpdate {
     Off(PathBuf),
-    On(PathBuf, String, Option<Vec<App>>),
+    On(PathBuf, String, Option<Vec<Entry>>),
 }
 
 async fn start_listening(
@@ -440,8 +479,12 @@ async fn start_listening(
                     }
 
                     if enabled {
-                        let app_list = gpu.app_list(&[]).await;
+                        let mut list = gpu.connected_outputs().await.unwrap_or_default();
-                        if output.send(GpuUpdate::On(gpu.path.clone(), gpu.name.clone(), app_list)).await.is_err() {
+                        if let Some(mut apps) = gpu.app_list(&[]).await {
+                            apps.retain(|app| app.name != "cosmic-comp");
+                            list.extend(apps);
+                        }
+                        if output.send(GpuUpdate::On(gpu.path.clone(), gpu.name.clone(), (!list.is_empty()).then_some(list))).await.is_err() {
                             return State::Finished;
                         }
                     } else if output.send(GpuUpdate::Off(gpu.path.clone())).await.is_err() {