From b05bdd6b1b5f99327f0e7779b54dfc03725767e5 Mon Sep 17 00:00:00 2001
From: Maxwell Beck <max@rastertail.net>
Date: Sat, 28 Jun 2025 21:37:10 -0500
Subject: Input improvements

---
 src/main.rs | 74 +++++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 53 insertions(+), 21 deletions(-)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index 56586ee..2f9b232 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,12 +2,11 @@ use std::{collections::HashSet, pin::pin, time::Duration};
 
 use bluer::{
     Adapter, AdapterEvent, Device, DiscoveryFilter, DiscoveryTransport, Session, Uuid,
-    gatt::{local::Profile, remote::Characteristic},
+    gatt::remote::Characteristic,
 };
 use evdev::{
-    AbsInfo, AbsoluteAxisCode, AttributeSet, EventType, InputEvent, KeyCode, MiscCode, PropType,
-    SynchronizationCode, UinputAbsSetup,
-    uinput::{VirtualDevice, VirtualDeviceBuilder},
+    AbsInfo, AbsoluteAxisCode, AttributeSet, EventType, InputEvent, KeyCode, PropType,
+    SynchronizationCode, UinputAbsSetup, uinput::VirtualDevice,
 };
 use tokio::{select, time::interval};
 use tokio_stream::StreamExt;
@@ -18,7 +17,7 @@ const HID_SERVICE: Result<Uuid, uuid::Error> =
 const REPORT_REF: Result<Uuid, uuid::Error> =
     Uuid::try_parse("00002908-0000-1000-8000-00805f9b34fb");
 
-const MAGIC_REPORT: u8 = 240;
+// const MAGIC_REPORT: u8 = 240;
 const BUTTON_REPORT: u8 = 251;
 const TOUCH_REPORT: u8 = 252;
 
@@ -97,14 +96,13 @@ async fn run(adapter: &Adapter) -> bluer::Result<()> {
 
     let chars = RemoteCharateristics::get(&remote).await?;
     let mut touch_stream = pin!(chars.touch.notify().await?);
+    let mut button_stream = pin!(chars.button.notify().await?);
 
     eprintln!("DBG starting");
     let mut keys = AttributeSet::new();
     keys.insert(KeyCode::BTN_TOUCH);
     keys.insert(KeyCode::BTN_TOOL_FINGER);
-
-    let mut msc = AttributeSet::new();
-    msc.insert(MiscCode::MSC_TIMESTAMP);
+    keys.insert(KeyCode::BTN_LEFT);
 
     let mut props = AttributeSet::new();
     props.insert(PropType::POINTER);
@@ -126,8 +124,6 @@ async fn run(adapter: &Adapter) -> bluer::Result<()> {
             AbsInfo::new(0, -2048, 2048, 32, 0, 16),
         ))
         .unwrap()
-        .with_msc(&msc)
-        .unwrap()
         .build()
         .unwrap();
 
@@ -141,21 +137,57 @@ async fn run(adapter: &Adapter) -> bluer::Result<()> {
         select! {
             ev = touch_stream.next() => {
                 let ev = ev.unwrap();
-                tx = ((((ev[5] & 15) as u16) << 8) + ev[4] as u16) as f32;
-                ty = ((((ev[5] & !15) as u16) >> 4) + ((ev[6] as u16) << 4)) as f32;
-                if tx >= 2048.0 {
-                    tx -= 4096.0;
-                }
-                if ty >= 2048.0 {
-                    ty -= 4096.0;
+                let touch_next = if ev[3] > 0 { 1 } else { 0 };
+                if touch_next > 0 {
+                    tx = ((((ev[5] & 15) as u16) << 8) + ev[4] as u16) as f32;
+                    ty = ((((ev[5] & !15) as u16) >> 4) + ((ev[6] as u16) << 4)) as f32;
+                    if tx >= 2048.0 {
+                        tx -= 4096.0;
+                    }
+                    if ty >= 2048.0 {
+                        ty -= 4096.0;
+                    }
+                    if touch == 0 {
+                        x = tx;
+                        y = ty;
+                    }
                 }
-
-                touch = if ev[3] > 0 { 1 } else { 0 };
+                touch = touch_next;
                 // ts = (((ev[2] as u16) << 8) + (ev[1] as u16)) as i32;
             },
+            ev = button_stream.next() => {
+                let ev = ev.unwrap();
+                match (ev[0], ev[1]) {
+                    (8, 0) => {
+                        uinput
+                            .emit(&[
+                                InputEvent::new(EventType::KEY.0, KeyCode::BTN_LEFT.0, 1),
+                                InputEvent::new(
+                                    EventType::SYNCHRONIZATION.0,
+                                    SynchronizationCode::SYN_REPORT.0,
+                                    0,
+                                ),
+                            ])
+                            .unwrap();
+                    },
+                    (0, 0) => {
+                        uinput
+                            .emit(&[
+                                InputEvent::new(EventType::KEY.0, KeyCode::BTN_LEFT.0, 0),
+                                InputEvent::new(
+                                    EventType::SYNCHRONIZATION.0,
+                                    SynchronizationCode::SYN_REPORT.0,
+                                    0,
+                                ),
+                            ])
+                            .unwrap();
+                    },
+                    (_, _) => (),
+                }
+            }
             _ = timer.tick() => {
-                x = 0.5 * x + 0.5 * tx;
-                y = 0.5 * y + 0.5 * ty;
+                x = 0.95 * x + 0.05 * tx;
+                y = 0.95 * y + 0.05 * ty;
 
                 uinput
                     .emit(&[
-- 
cgit 1.4.1