Remove trinket_m0 bsp crate

Cargo.toml

@@ -8,7 +8,12 @@ build = "src/build.rs"
 
 [dependencies]
 apa102-spi = "0.3.2"
-atsamd-hal = "0.14"
+atsamd-hal = { version = "0.14", default-features = false, features = [
+  "samd21e",
+  "samd21e-rt",
+  "unproven",
+  "usb",
+] }
 bitbang-hal = "0.3.2"
 cortex-m = "0.7.4"
 cortex-m-rt = "0.7.1"
@@ -17,7 +22,6 @@ embedded-hal = "0.2"
 once_cell = { version = "1.7.2", default-features = false }
 panic-halt = "0.2.0"
 smart-leds = "0.3"
-trinket_m0 = { version = "0.11.0", features = ["unproven", "usb"] }
 usb-device = "0.2"
 usbd-serial = "0.1"
 streamdeck-common = { version = "0.1.0", path = "./streamdeck-common" }

src/bsp.rs

@@ -1,8 +1,15 @@
-use atsamd_hal::gpio::v2::{
-    Disabled, Floating, Input, Output, Pin, PullUp, PushPull, PA00, PA01, PA14,
-};
-use atsamd_hal::prelude::_embedded_hal_timer_CountDown as CountDown;
+pub use atsamd_hal as hal;
+pub use cortex_m_rt::entry;
+
 use embedded_hal::timer::Periodic;
+use hal::{
+    gpio::v2::{
+        Disabled, Floating, Input, Output, Pin, PullUp, PushPull, PA00, PA01, PA14, PA24, PA25,
+    },
+    prelude::_embedded_hal_timer_CountDown as CountDown,
+    usb::UsbBus,
+};
+use usb_device::class_prelude::UsbBusAllocator;
 
 pub struct Dotstar {
     pub ci: Pin<PA01, Disabled<Floating>>,
@@ -10,6 +17,21 @@ pub struct Dotstar {
     pub nc: Pin<PA14, Disabled<Floating>>,
 }
 
+pub fn usb_allocator(
+    usb: hal::pac::USB,
+    clocks: &mut hal::clock::GenericClockController,
+    pm: &mut hal::pac::PM,
+    dm: Pin<PA24, Disabled<Floating>>,
+    dp: Pin<PA25, Disabled<Floating>>,
+) -> Option<UsbBusAllocator<UsbBus>> {
+    let gckl0 = clocks.gclk0();
+    let usb_clock = &clocks.usb(&gckl0)?;
+
+    Some(UsbBusAllocator::new(UsbBus::new(
+        usb_clock, pm, dm, dp, usb,
+    )))
+}
+
 pub type Spi<C> = bitbang_hal::spi::SPI<
     Pin<PA14, Input<PullUp>>,
     Pin<PA00, Output<PushPull>>,
@@ -31,7 +53,7 @@ impl Dotstar {
     }
 }
 
-atsamd_hal::bsp_pins! (
+hal::bsp_pins! (
     PA08 {
         name: d0
         aliases: {

src/main.rs

@@ -8,21 +8,19 @@ use atsamd_hal::{
     time::MegaHertz,
 };
 use panic_halt as _; // you can put a breakpoint on `rust_begin_unwind` to catch panics
-use trinket_m0 as hal;
 
+use atsamd_hal::{
+    clock::GenericClockController,
+    pac::{interrupt, CorePeripherals, Peripherals},
+    prelude::_atsamd_hal_embedded_hal_digital_v2_OutputPin,
+    usb::UsbBus,
+};
 use core::cell::RefCell;
 use cortex_m::{
     asm::delay as cycle_delay,
     interrupt::Mutex,
     peripheral::{NVIC, SCB},
 };
-use hal::{
-    clock::GenericClockController,
-    entry,
-    pac::{interrupt, CorePeripherals, Peripherals},
-    prelude::_atsamd_hal_embedded_hal_digital_v2_OutputPin,
-    usb::UsbBus,
-};
 use once_cell::unsync::OnceCell;
 use smart_leds::{SmartLedsWrite, RGB8};
 use streamdeck_common::{handle_input, Handshake, UnsafeSync};
@@ -32,7 +30,7 @@ use usbd_serial::{SerialPort, USB_CLASS_CDC};
 mod bsp;
 mod trinket_buttons;
 
-use bsp::{Dotstar, Pins};
+use bsp::{entry, Dotstar, Pins};
 use trinket_buttons::Buttons;
 
 static USB_ALLOCATOR: UnsafeSync<OnceCell<UsbBusAllocator<UsbBus>>> =
@@ -74,13 +72,14 @@ fn main() -> ! {
     let mut red_led = pins.d13.into_push_pull_output();
     red_led.set_low().unwrap();
 
-    let usb_allocator = hal::usb_allocator(
+    let usb_allocator = bsp::usb_allocator(
         peripherals.USB,
         &mut clocks,
         &mut peripherals.PM,
         pins.usb_dm,
         pins.usb_dp,
-    );
+    )
+    .unwrap();
 
     // SAFETY: No interrupt will access USB_ALLOCATOR before this point, since it is only
     // referenced from inside the USB_SERIAL mutex and the USB_BUS mutex, which have not been set