Remove Mini firmware, Update Neo GPIO

.github/workflows/build.yml

@@ -66,7 +66,7 @@ jobs:
     - name: Verify embedded binaries exist
       run: |
         set -euo pipefail
-        expected=(mini module6 module15 module32 original original-v2 plus revised-mini xl)
+        expected=(module6 module15 module32 original original-v2 plus xl)
         missing=0
         for bin in "${expected[@]}"; do
           if [ -f "target/thumbv6m-none-eabi/release/$bin" ]; then
@@ -89,14 +89,12 @@ jobs:
       with:
         name: firmware-${{ github.sha }}
         path: |
-          target/thumbv6m-none-eabi/release/mini
           target/thumbv6m-none-eabi/release/module6
           target/thumbv6m-none-eabi/release/module15
           target/thumbv6m-none-eabi/release/module32
           target/thumbv6m-none-eabi/release/original
           target/thumbv6m-none-eabi/release/original-v2
           target/thumbv6m-none-eabi/release/plus
-          target/thumbv6m-none-eabi/release/revised-mini
           target/thumbv6m-none-eabi/release/xl
         retention-days: 30
 

CLAUDE.md

@@ -4,7 +4,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with th
 
 ## Project Overview
 
-ProductionDeck is an open-source RP2040-based Stream Deck–compatible firmware in Rust (Embassy). Multiple **device profiles** (Mini, Classic/Mk.2, XL, Neo, +, modules, etc.) share the same codebase; each profile selects USB PID, layout, and **Legacy (Mini)** vs **Main/Expanded** HID handling. Physical hardware is often a small key matrix + one ST7735 region unless you build a larger layout.
+ProductionDeck is an open-source RP2040-based Stream Deck–compatible firmware in Rust (Embassy). Multiple **device profiles** (Classic/Mk.2, XL, Neo, +, modules, etc.) share the same codebase; each profile selects USB PID, layout, and **Legacy (Mini-family)** vs **Main/Expanded** HID handling. Six-key Mini-class hardware is covered only by **`module6`** ([`Device::Module6Keys`]). Physical hardware is often a small key matrix + one ST7735 region unless you build a larger layout.
 
 **Current Status**: Alpha - Firmware compiles successfully, ready for hardware testing.
 
@@ -50,7 +50,7 @@ cargo doc --open
 ## Project Structure
 
 ### Core Source Files
-- `src/bin/*.rs` - One binary per target device (`mini`, `xl`, `mk2`, `neo`, `plus-xl`, …)
+- `src/bin/*.rs` - One binary per target device (`module6`, `xl`, `mk2`, `neo`, `plus-xl`, …)
 - `src/lib.rs` - Library root (`productiondeck` crate)
 - `src/config.rs` - Hardware configuration constants and pin assignments
 - `src/device/mod.rs` - USB PID, layout, and protocol family per `Device`

Cargo.toml

@@ -33,6 +33,7 @@ portable-atomic = { version = "1.0", features = ["critical-section"] }
 # Display and graphics
 st7735-lcd = "0.10"
 embedded-graphics = "0.8"
+embedded-graphics-core = "0.4"
 
 # USB HID
 usbd-hid = "0.10"
@@ -66,18 +67,6 @@ debug = 2
 incremental = false
 opt-level = "z"
 
-[[bin]]
-name = "mini"
-path = "src/bin/mini.rs"
-test = false
-bench = false
-
-[[bin]]
-name = "revised-mini"
-path = "src/bin/revised_mini.rs"
-test = false
-bench = false
-
 [[bin]]
 name = "original"
 path = "src/bin/original.rs"

README.md

@@ -12,7 +12,7 @@ cargo install elf2uf2-rs flip-link
 ## Building
 
 ```bash
-cargo build --release --bin mini
+cargo build --release --bin module6
 ```
 
 Other devices: `original`, `xl`, `plus`, `module6`, etc.

build-devices.sh

@@ -7,7 +7,7 @@ echo "=== ProductionDeck Multi-Device Build Script ==="
 echo
 
 # List of devices to build
-devices=("mini" "revised-mini" "original" "original-v2" "xl" "plus")
+devices=("original" "original-v2" "xl" "plus")
 
 echo "Available device targets:"
 for device in "${devices[@]}"; do
@@ -45,7 +45,7 @@ else
     echo "All builds completed!"
     echo
     echo "Usage examples:"
-    echo "  cargo run --release --bin mini          # Run Mini firmware"
+    echo "  cargo run --release --bin module6       # Module 6 / Mini-family firmware"
     echo "  cargo run --release --bin xl            # Run XL firmware"
-    echo "  ./build-devices.sh mini                 # Build only Mini firmware"
+    echo "  ./build-devices.sh module6              # Build only Module 6 firmware"
 fi

src/bin/module6.rs

@@ -16,7 +16,7 @@ const DEVICE: Device = Device::Module6Keys;
 fn main() -> ! {
     run_multicore(
         DEVICE,
-        MulticoreCore0Layout::MiniOrModule6Direct,
+        MulticoreCore0Layout::Module6DirectTc00,
         MulticoreCore1Buffer::B8192,
     )
 }

src/channels.rs

@@ -3,8 +3,9 @@
 //! This module defines all the Embassy channels used for communication
 //! between different tasks in the ProductionDeck application.
 
+use crate::config::{DISPLAY_CHANNEL_CAPACITY, MULTICORE_CHANNEL_SIZE, USB_COMMAND_CHANNEL_SIZE};
 use crate::types::{ButtonState, DisplayCommand, UsbCommand};
-use embassy_sync::blocking_mutex::raw::ThreadModeRawMutex;
+use embassy_sync::blocking_mutex::raw::{CriticalSectionRawMutex, ThreadModeRawMutex};
 use embassy_sync::channel::Channel;
 
 /// Channel for button state communication from button task to USB task
@@ -13,8 +14,16 @@ pub static BUTTON_CHANNEL: Channel<ThreadModeRawMutex, ButtonState, 1> = Channel
 
 /// Channel for USB commands from HID handler to other tasks
 /// Buffer size: 4 (allows some buffering of commands)
-pub static USB_COMMAND_CHANNEL: Channel<ThreadModeRawMutex, UsbCommand, 4> = Channel::new();
+pub static USB_COMMAND_CHANNEL: Channel<ThreadModeRawMutex, UsbCommand, USB_COMMAND_CHANNEL_SIZE> =
+    Channel::new();
 
 /// Channel for display commands to the display task
-/// Buffer size: 8 (allows buffering of multiple display operations)
-pub static DISPLAY_CHANNEL: Channel<ThreadModeRawMutex, DisplayCommand, 8> = Channel::new();
+pub static DISPLAY_CHANNEL: Channel<ThreadModeRawMutex, DisplayCommand, DISPLAY_CHANNEL_CAPACITY> =
+    Channel::new();
+
+/// Core 0 → Core 1 display commands (multicore builds). Uses [`MULTICORE_CHANNEL_SIZE`] slots.
+pub static MULTICORE_IMAGE_CHANNEL: Channel<
+    CriticalSectionRawMutex,
+    DisplayCommand,
+    MULTICORE_CHANNEL_SIZE,
+> = Channel::new();

src/config.rs

@@ -203,12 +203,24 @@ pub fn display_total_height() -> usize {
 
 // USB Configuration
 pub const USB_POLL_RATE_MS: u64 = 1; // 1ms USB polling (1000Hz)
+
 pub const IMAGE_BUFFER_SIZE: usize = 1024; // 1KB buffer size
 
 // Image processing optimization
 pub const IMAGE_PROCESSING_BUFFER_SIZE: usize = 8192; // 8KB for image processing
 pub const DISPLAY_BUFFER_SIZE: usize = 2048; // 2KB for display operations
-pub const MULTICORE_CHANNEL_SIZE: usize = 8; // Increased channel size for better throughput
+
+/// Queue depth for [`crate::channels::MULTICORE_IMAGE_CHANNEL`].
+pub const MULTICORE_CHANNEL_SIZE: usize = 8;
+
+/// Raw BMP accumulation cap for Module 6 chunked uploads.
+pub const MODULE6_BMP_CAP: usize = 1024;
+
+/// Depth of [`crate::channels::USB_COMMAND_CHANNEL`].
+pub const USB_COMMAND_CHANNEL_SIZE: usize = 4;
+
+/// Depth of [`crate::channels::DISPLAY_CHANNEL`].
+pub const DISPLAY_CHANNEL_CAPACITY: usize = 8;
 
 // ===================================================================
 // Power Management: Idle Time (Sleep Mode)

src/device/mod.rs

@@ -4,7 +4,7 @@
 //! abstracting away device-specific configurations, protocols, and capabilities.
 //!
 //! Protocol families (Elgato HID API):
-//! - **Legacy / Mini family**: Mini, Mini 2022, Mini Discord, 6-key Module — distinct report layout.
+//! - **Mini / 6-key Module**: [`Device::Module6Keys`] only (Mini-family HID); use `--bin module6`.
 //! - **Main / Expanded family**: Classic, XL, Neo, Plus, Plus XL, 15/32-key Modules — see General Reference.
 
 pub mod neo;
@@ -134,11 +134,7 @@ pub trait DeviceConfig {
 #[repr(u8)]
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Device {
-    Mini = 0,
-    /// Mini 2022 (Elgato PID 0x0090)
-    RevisedMini = 1,
-    /// Mini Discord (0x00B3)
-    MiniDiscord = 2,
+    /// Runtime tags `0`…`2` are unused (removed Mini-family firmware SKUs).
     /// First-gen Stream Deck (0x0060)
     Original = 3,
     /// Stream Deck 2019 (0x006D)
@@ -170,9 +166,6 @@ impl Device {
             return None;
         }
         match tag {
-            0 => Some(Device::Mini),
-            1 => Some(Device::RevisedMini),
-            2 => Some(Device::MiniDiscord),
             3 => Some(Device::Original),
             4 => Some(Device::OriginalV2),
             5 => Some(Device::Mk2),
@@ -191,9 +184,6 @@ impl Device {
 
     pub fn pid(&self) -> u16 {
         match self {
-            Device::Mini => 0x0063,
-            Device::RevisedMini => 0x0090,
-            Device::MiniDiscord => 0x00B3,
             Device::Original => 0x0060,
             Device::OriginalV2 => 0x006d,
             Device::Mk2 => 0x0080,
@@ -221,9 +211,7 @@ impl Device {
             Device::Plus => (2u8, 4u8, 120u16, 120u16, 800u16, 480u16),
             Device::PlusXl => (4u8, 9u8, 112u16, 112u16, 1280u16, 800u16),
             Device::Neo => (2u8, 4u8, 96u16, 96u16, 480u16, 320u16),
-            Device::Mini | Device::RevisedMini | Device::MiniDiscord | Device::Module6Keys => {
-                (2u8, 3u8, 80u16, 80u16, 320u16, 240u16)
-            }
+            Device::Module6Keys => (2u8, 3u8, 80u16, 80u16, 320u16, 240u16),
             Device::Original => (3u8, 5u8, 72u16, 72u16, 480u16, 272u16),
         };
         let mut b = [0u8; 16];
@@ -271,9 +259,6 @@ impl Device {
 impl DeviceConfig for Device {
     fn device_name(&self) -> &'static str {
         match self {
-            Device::Mini => "StreamDeck Mini",
-            Device::RevisedMini => "StreamDeck Mini 2022",
-            Device::MiniDiscord => "StreamDeck Mini Discord",
             Device::Original => "StreamDeck Original",
             Device::OriginalV2 => "StreamDeck Classic (2019)",
             Device::Mk2 => "StreamDeck Mk.2",
@@ -298,9 +283,7 @@ impl DeviceConfig for Device {
 
     fn button_layout(&self) -> ButtonLayout {
         match self {
-            Device::Mini | Device::RevisedMini | Device::MiniDiscord | Device::Module6Keys => {
-                ButtonLayout::new(3, 2, true)
-            }
+            Device::Module6Keys => ButtonLayout::new(3, 2, true),
             Device::Module15Keys | Device::OriginalV2 | Device::Mk2 | Device::Mk2ScissorKeys => {
                 ButtonLayout::new(5, 3, true)
             }
@@ -313,16 +296,14 @@ impl DeviceConfig for Device {
 
     fn display_config(&self) -> DisplayConfig {
         match self {
-            Device::Mini | Device::RevisedMini | Device::MiniDiscord | Device::Module6Keys => {
-                DisplayConfig {
-                    image_width: 80,
-                    image_height: 80,
-                    format: ImageFormat::Bmp,
-                    needs_rotation: true,
-                    flip_horizontal: false,
-                    flip_vertical: false,
-                }
-            }
+            Device::Module6Keys => DisplayConfig {
+                image_width: 80,
+                image_height: 80,
+                format: ImageFormat::Bmp,
+                needs_rotation: true,
+                flip_horizontal: false,
+                flip_vertical: false,
+            },
             Device::Module15Keys | Device::OriginalV2 | Device::Mk2 | Device::Mk2ScissorKeys => {
                 DisplayConfig {
                     image_width: 72,
@@ -378,27 +359,6 @@ impl DeviceConfig for Device {
 
     fn usb_config(&self) -> UsbConfig {
         match self {
-            Device::Mini => UsbConfig {
-                vid: 0x0fd9,
-                pid: 0x0063,
-                product_name: "Stream Deck Mini",
-                manufacturer: "Elgato Systems",
-                protocol: ProtocolVersion::V1,
-            },
-            Device::RevisedMini => UsbConfig {
-                vid: 0x0fd9,
-                pid: 0x0090,
-                product_name: "Stream Deck Mini",
-                manufacturer: "Elgato Systems",
-                protocol: ProtocolVersion::V1,
-            },
-            Device::MiniDiscord => UsbConfig {
-                vid: 0x0fd9,
-                pid: 0x00B3,
-                product_name: "Stream Deck Mini",
-                manufacturer: "Elgato Systems",
-                protocol: ProtocolVersion::V1,
-            },
             Device::Original => UsbConfig {
                 vid: 0x0fd9,
                 pid: 0x0060,