finish firmware & add build script

Cargo.lock

@@ -127,15 +127,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "crc-any"
-version = "2.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "774646b687f63643eb0f4bf13dc263cb581c8c9e57973b6ddf78bda3994d88df"
-dependencies = [
- "debug-helper",
-]
-
 [[package]]
 name = "critical-section"
 version = "1.1.1"
@@ -148,12 +139,6 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
-[[package]]
-name = "debug-helper"
-version = "0.3.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f578e8e2c440e7297e008bb5486a3a8a194775224bbc23729b0dbdfaeebf162e"
-
 [[package]]
 name = "defmt"
 version = "0.3.2"
@@ -623,29 +608,6 @@ version = "0.6.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
-[[package]]
-name = "rp-pico"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aab28f6f4e19cec2d61b64cdd685e69794b81c579fd3b765579c46018fe616d0"
-dependencies = [
- "cortex-m",
- "cortex-m-rt",
- "fugit",
- "rp2040-boot2",
- "rp2040-hal",
- "usb-device",
-]
-
-[[package]]
-name = "rp2040-boot2"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c773ec49b836077aa144b58dc7654a243e1eecdb6cf0d25361ae7c7600fabd8"
-dependencies = [
- "crc-any",
-]
-
 [[package]]
 name = "rp2040-hal"
 version = "0.8.0"
@@ -713,7 +675,6 @@ dependencies = [
  "panic-probe",
  "pio",
  "pio-proc",
- "rp-pico",
  "rp2040-hal",
 ]
 

Cargo.toml

@@ -15,7 +15,6 @@ defmt-rtt = "0.4.0"
 panic-probe = { version = "0.3.0", features = ["print-defmt"] }
 
 # We're using a Pico by default on this template
-rp-pico = "0.7.0"
 rp2040-hal = { version="0.8", features=["rt", "critical-section-impl"] }
 
 pio-proc = "0.2"

build.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+(cargo build --target thumbv6m-none-eabi --release && elf2uf2-rs target/thumbv6m-none-eabi/release/rustgcc) || echo "Build failed."

src/gccstate.rs

@@ -1,5 +1,11 @@
 use embedded_hal::digital::v2::InputPin;
-use rp2040_hal::gpio::{bank0::*, Pin, PinId, PullUp, PullUpInput};
+use rp2040_hal::gpio::{bank0::*, Pin, PullUpInput};
+
+const MOD1_POS_VAL: u8 = 186; // 127 + 69 (max walk is 69)
+const MOD1_NEG_VAL: u8 = 68; // 127 - 69
+
+const MOD2_POS_VAL: u8 = 159;
+const MOD2_NEG_VAL: u8 = 95;
 
 macro_rules! determine_stick_state {
     ($previous_state:ident, $current_state:ident, $button:ident) => {
@@ -16,20 +22,54 @@ macro_rules! determine_stick_state {
     };
 }
 
+macro_rules! get_current_positive_val {
+    ($pin_state:ident, $pin_axis:ident, $modifier_state:ident) => {
+        match $pin_state.$pin_axis {
+            true => match $modifier_state {
+                ModifierState::MOD1 => MOD1_POS_VAL,
+                ModifierState::MOD2 => MOD2_POS_VAL,
+                ModifierState::NONE => 255,
+            },
+            false => 127,
+        }
+    };
+}
+
+macro_rules! get_current_negative_val {
+    ($pin_state:ident, $pin_axis:ident, $modifier_state:ident) => {
+        match $pin_state.$pin_axis {
+            true => match $modifier_state {
+                ModifierState::MOD1 => MOD1_NEG_VAL,
+                ModifierState::MOD2 => MOD2_NEG_VAL,
+                ModifierState::NONE => 0,
+            },
+            false => 127,
+        }
+    };
+}
+
+macro_rules! get_current_axis_val {
+    ($pin_state:ident, $pos_axis:ident, $neg_axis:ident, $modifier_state:ident) => {
+        match $pin_state.$neg_axis {
+            true => get_current_negative_val!($pin_state, $neg_axis, $modifier_state),
+            false => get_current_positive_val!($pin_state, $pos_axis, $modifier_state),
+        }
+    };
+}
+
 macro_rules! determine_positive_stick_axis {
     ($stick_state:ident, $modifier_state:ident, $gccstate:ident, $pin_state:ident, $axis:ident, $neg_axis:ident) => {
         match $stick_state {
             StickButtonState::PRESSED => {
                 $gccstate.$axis = match $modifier_state {
-                    ModifierState::MOD1 => 159, // 127 + 32
+                    ModifierState::MOD1 => MOD1_POS_VAL,
-                    ModifierState::MOD2 => 191, // 127 + 64
+                    ModifierState::MOD2 => MOD2_POS_VAL,
-                    ModifierState::NONE => 255, // 127 + 128
+                    ModifierState::NONE => 255,
                 }
             }
-            StickButtonState::RELEASED => match $pin_state.$neg_axis {
+            StickButtonState::RELEASED => {
-                true => {}
+                $gccstate.$axis = get_current_negative_val!($pin_state, $neg_axis, $modifier_state)
-                false => $gccstate.$axis = 127,
+            }
-            },
             StickButtonState::UNCHANGED => {}
         }
     };
@@ -40,15 +80,14 @@ macro_rules! determine_negative_stick_axis {
         match $stick_state {
             StickButtonState::PRESSED => {
                 $gccstate.$axis = match $modifier_state {
-                    ModifierState::MOD1 => 95, // 127 - 32
+                    ModifierState::MOD1 => MOD1_NEG_VAL,
-                    ModifierState::MOD2 => 63, // 127 - 64
+                    ModifierState::MOD2 => MOD2_NEG_VAL,
-                    ModifierState::NONE => 0,  // 127 - 128
+                    ModifierState::NONE => 0,
                 }
             }
-            StickButtonState::RELEASED => match $pin_state.$pos_axis {
+            StickButtonState::RELEASED => {
-                true => {}
+                $gccstate.$axis = get_current_positive_val!($pin_state, $pos_axis, $modifier_state)
-                false => $gccstate.$axis = 127,
+            }
-            },
             StickButtonState::UNCHANGED => {}
         }
     };
@@ -120,8 +159,8 @@ impl From<GccState> for [u8; 8] {
         response[3] = value.lsticky;
         response[4] = value.rstickx;
         response[5] = value.rsticky;
-        response[6] = value.l as u8 * 127;
+        response[6] = value.l as u8 * 255;
-        response[7] = value.r as u8 * 127;
+        response[7] = value.r as u8 * 255;
 
         response
     }
@@ -298,10 +337,10 @@ pub fn pinstate_to_gccstate(
     gccstate.a = current_pin_state.a;
     gccstate.b = current_pin_state.b;
     gccstate.x = current_pin_state.x;
-    gccstate.y = current_pin_state.y;
+    gccstate.y = current_pin_state.y || current_pin_state.zr;
-    gccstate.l = current_pin_state.l;
+    gccstate.l = current_pin_state.l || current_pin_state.zr;
-    gccstate.r = current_pin_state.r || current_pin_state.ddown;
+    gccstate.r = current_pin_state.r || current_pin_state.ddown || current_pin_state.zl;
-    gccstate.z = current_pin_state.zl || current_pin_state.zr || current_pin_state.dleft;
+    gccstate.z = current_pin_state.zl;
 
     let stick_to_dpad = current_pin_state.q || current_pin_state.e;
 
@@ -315,18 +354,52 @@ pub fn pinstate_to_gccstate(
         gccstate.dright = current_pin_state.right;
 
         return gccstate;
+    } else {
+        gccstate.dup = false;
+        gccstate.ddown = false;
+        gccstate.dleft = false;
+        gccstate.dright = false;
     }
 
     // MOD1 = soft modifier, makes stick go half length
     // MOD2 = hard modifier, makes stick go quarter length
-    let modifier_state = match current_pin_state.shift || current_pin_state.dup {
+    let modifier_state = match current_pin_state.shift {
         true => ModifierState::MOD1,
-        false => match current_pin_state.ddown {
+        false => match current_pin_state.dup {
             true => ModifierState::MOD2,
             false => ModifierState::NONE,
         },
     };
 
+    // turnaround up tilt angles
+    match determine_stick_state!(previous_pin_state, current_pin_state, dleft) {
+        StickButtonState::PRESSED | StickButtonState::UNCHANGED => {
+            if current_pin_state.dleft {
+                gccstate.rsticky = 255;
+                gccstate.rstickx = 53;
+            }
+        }
+        StickButtonState::RELEASED => {
+            gccstate.rsticky = get_current_axis_val!(current_pin_state, cup, cdown, modifier_state);
+            gccstate.rstickx =
+                get_current_axis_val!(current_pin_state, cleft, cright, modifier_state);
+        }
+    }
+
+    match determine_stick_state!(previous_pin_state, current_pin_state, dright) {
+        StickButtonState::PRESSED | StickButtonState::UNCHANGED => {
+            if current_pin_state.dright {
+                gccstate.rsticky = 255;
+                gccstate.rstickx = 201;
+            }
+        }
+        StickButtonState::RELEASED => {
+            gccstate.rsticky = get_current_axis_val!(current_pin_state, cup, cdown, modifier_state);
+            gccstate.rstickx =
+                get_current_axis_val!(current_pin_state, cleft, cright, modifier_state);
+        }
+    }
+
     // determine down / up presses for stick buttons
     let lstick_up_state = determine_stick_state!(previous_pin_state, current_pin_state, up);
     let lstick_down_state = determine_stick_state!(previous_pin_state, current_pin_state, down);
@@ -406,27 +479,33 @@ pub fn pinstate_to_gccstate(
         cright
     );
 
-    // clamp lstickx if lsticky is 0 or 255 for uptilt and downtilt angles
+    // clamp lstickx if lsticky is 0 or 255, so that if we hit A,
+    // we get an up or down attack instead of left or right
+    // comment this if you want ftilt/-smash angles instead
     if gccstate.lsticky <= 1 || gccstate.lsticky >= 254 {
-        gccstate.lstickx = gccstate.lstickx.max(53).min(201);
+        gccstate.lstickx = gccstate.lstickx.max(18).min(236);
     } else {
         gccstate.lstickx = match gccstate.lstickx {
-            201 => 255,
+            236 => 255,
-            53 => 0,
+            18 => 0,
             _ => gccstate.lstickx,
         }
     }
 
-    // do the same for cstick
+    // C-stick logic, however this is kinda useless since the game won't
-    if gccstate.rsticky <= 1 || gccstate.rsticky >= 254 {
+    // let you do turnaround up/down tilt like this
-        gccstate.rstickx = gccstate.rstickx.max(53).min(201);
+    //
-    } else {
+    // so for C-stick it's usually better to just keep the angles the defaults,
-        gccstate.rstickx = match gccstate.rstickx {
+    // in order to easily perform angled f-tilt's / smashes
-            201 => 255,
+    // if gccstate.rsticky <= 1 || gccstate.rsticky >= 254 {
-            53 => 0,
+    //     gccstate.rstickx = gccstate.rstickx.max(18).min(236);
-            _ => gccstate.rstickx,
+    // } else {
-        }
+    //     gccstate.rstickx = match gccstate.rstickx {
-    }
+    //         201 => 255,
+    //         53 => 0,
+    //         _ => gccstate.rstickx,
+    //     }
+    // }
 
     gccstate
 }

src/joybus.rs

@@ -1,19 +1,16 @@
 use cortex_m::delay::Delay;
-use embedded_hal::digital::v2::{InputPin, OutputPin};
+
-use rp2040_hal::gpio::{bank0::BankPinId, PinId};
+use rp2040_hal::{
-use rp_pico::{
+    gpio::{bank0::BankPinId, PinId},
-    hal::{
+    pac::{PIO0, RESETS},
     pio::{
-            InstalledProgram, Rx, StateMachine, StateMachineIndex, Stopped, Tx, UninitStateMachine,
+        InstalledProgram, PIOBuilder, Rx, StateMachine, StateMachineIndex, Stopped, Tx,
-            PIO,
+        UninitStateMachine, PIO,
     },
     prelude::_rphal_pio_PIOExt,
-    },
-    pac::{PIO0, RESETS},
 };
 
 use crate::{
-    gccstate::GccState,
     input::CURRENT_STATE,
     pio::{to_pio_response, PioResponse},
 };
@@ -59,10 +56,10 @@ where
     PE: _rphal_pio_PIOExt,
     SM: StateMachineIndex,
 {
-    let (sm, rx, tx) = rp_pico::hal::pio::PIOBuilder::from_program(installed)
+    let (sm, rx, tx) = PIOBuilder::from_program(installed)
         .set_pins(pin_id, 1)
-        .in_shift_direction(rp_pico::hal::pio::ShiftDirection::Left)
+        .in_shift_direction(rp2040_hal::pio::ShiftDirection::Left)
-        .out_shift_direction(rp_pico::hal::pio::ShiftDirection::Right)
+        .out_shift_direction(rp2040_hal::pio::ShiftDirection::Right)
         .pull_threshold(32)
         .push_threshold(8)
         .clock_divisor_fixed_point(5, 0)

src/main.rs

@@ -81,7 +81,7 @@ fn main() -> ! {
         .unwrap();
 
     datatransfer(
-        pins.gpio28.into_pull_up_input(),
+        pins.gpio24.into_pull_up_input(),
         pac.PIO0,
         &mut pac.RESETS,
         delay,