From 7fdc6a2c1b5799221f5d89d5f935cfe7dad4ccd2 Mon Sep 17 00:00:00 2001
From: Brian Cully <bjc@kublai.com>
Date: Sun, 11 Aug 2019 19:01:34 -0400
Subject: Move usb controller stuff to usb directory.

---
 src/main.rs | 196 ------------------------------------------------------------
 1 file changed, 196 deletions(-)
 delete mode 100644 src/main.rs

(limited to 'src/main.rs')

diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index a7cfd8a..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,196 +0,0 @@
-//! Take USB keyboard reports and echo them over I²C.
-
-#![no_std]
-#![no_main]
-
-mod dotstar;
-mod logger;
-mod macros;
-mod rtc;
-
-use atsamd_usb_host::SAMDHost;
-use bootkbd::BootKeyboard;
-use clint::HandlerArray;
-use core::mem;
-use core::panic::PanicInfo;
-use cortex_m::asm::wfi;
-use cortex_m_rt::{entry, exception, ExceptionFrame};
-use embedded_hal::{blocking::i2c::Write, digital::v2::OutputPin};
-use log::{info, LevelFilter};
-use smart_leds::colors;
-use smart_leds_trait::SmartLedsWrite;
-use trinket_m0::{
-    self as hal,
-    clock::GenericClockController,
-    gpio::{OpenDrain, Output, Pa10, Pa6, Pa7, PfD},
-    sercom,
-    target_device::{interrupt, Interrupt},
-    time::*,
-    CorePeripherals, Peripherals,
-};
-use usb_host::Driver;
-
-// A very unsafe copy of an LED to turn on when things go really, really wrong.
-static mut LED: usize = 0;
-
-// I²C address to send keyboard reports to.
-const NRF_WIREADDR: u8 = 4;
-
-// Interrupt handler table.
-static HANDLERS: HandlerArray = HandlerArray::new();
-
-#[entry]
-fn main() -> ! {
-    let mut cp = CorePeripherals::take().expect("taking core peripherals");
-    let mut dp = Peripherals::take().expect("taking device peripherals");
-
-    let mut clocks = GenericClockController::with_internal_32kosc(
-        dp.GCLK,
-        &mut dp.PM,
-        &mut dp.SYSCTRL,
-        &mut dp.NVMCTRL,
-    );
-
-    let mut pins = hal::Pins::new(dp.PORT);
-
-    let uart = hal::uart(
-        &mut clocks,
-        115_200.hz(),
-        dp.SERCOM0,
-        &mut cp.NVIC,
-        &mut dp.PM,
-        pins.d3,
-        pins.d4,
-        &mut pins.port,
-    );
-
-    let mut i2c_master = hal::i2c_master(
-        &mut clocks,
-        400_000.hz(),
-        dp.SERCOM2,
-        &mut dp.PM,
-        pins.d0,
-        pins.d2,
-        &mut pins.port,
-    );
-
-    let mut red_led = pins.d13.into_open_drain_output(&mut pins.port);
-    red_led.set_low().expect("turning off red LED");
-    unsafe { LED = mem::transmute(&red_led) }
-
-    let mut dotstar = dotstar::new(
-        dp.SERCOM1,
-        pins.swdio,
-        pins.dotstar_di,
-        pins.dotstar_ci,
-        &mut pins.port,
-        &mut dp.PM,
-        &mut clocks,
-    );
-    let black = [colors::BLACK];
-    dotstar
-        .write(black.iter().cloned())
-        .expect("turning off dotstar");
-
-    // We do the transmute because, while all the underlying data is
-    // static, we're unable to get a referecence to the UART or LED
-    // until run-time. Another option would be to use Option in the
-    // SerialLogger definition, but that requires a check every time
-    // they might be used.
-    let uart_wrapped = logger::WriteWrapper::new(uart);
-    let logger = logger::SerialLogger::new(uart_wrapped, red_led);
-
-    // Wow, would I love to not be annotating this type.
-    let logger_ref: &'static logger::SerialLogger<
-        sercom::UART0<sercom::Sercom0Pad3<Pa7<PfD>>, sercom::Sercom0Pad2<Pa6<PfD>>, (), ()>,
-        Pa10<Output<OpenDrain>>,
-    > = unsafe { mem::transmute(&logger) };
-    unsafe { log::set_logger_racy(logger_ref).expect("couldn't set logger") };
-    log::set_max_level(LevelFilter::Info);
-
-    let mut rtc_handler = rtc::setup(dp.RTC, &mut clocks);
-
-    let (mut usb_host, mut usb_handler) = SAMDHost::new(
-        dp.USB,
-        pins.usb_sof,
-        pins.usb_dm,
-        pins.usb_dp,
-        Some(pins.usb_host_enable),
-        &mut pins.port,
-        &mut clocks,
-        &mut dp.PM,
-        &rtc::millis,
-    );
-
-    let mut bootkbd = BootKeyboard::new(|addr, buf| {
-        info!("{}: {:?}", addr, buf);
-        let hdr: [u8; 2] = [I2CMessageType::Keyboard as u8, buf.len() as u8];
-        i2c_master.write(NRF_WIREADDR, &hdr).ok();
-        i2c_master.write(NRF_WIREADDR, &buf).ok();
-    });
-    let mut drivers: [&mut dyn Driver; 1] = [&mut bootkbd];
-
-    HANDLERS.with_overrides(|hs| {
-        hs.register(0, &mut rtc_handler);
-        unsafe { cp.NVIC.set_priority(Interrupt::USB, 0) };
-        cp.NVIC.enable(Interrupt::RTC);
-
-        hs.register(1, &mut usb_handler);
-        unsafe { cp.NVIC.set_priority(Interrupt::USB, 1) };
-        cp.NVIC.enable(Interrupt::USB);
-
-        info!("Bootstrap complete.");
-
-        loop {
-            usb_host.task(&mut drivers[..]);
-            wfi()
-        }
-    });
-    unreachable!();
-}
-
-#[allow(unused)]
-#[repr(u8)]
-enum I2CMessageType {
-    Debug = 0x00,
-    Keyboard = 0x01,
-    Invalid = 0xff,
-}
-
-#[panic_handler]
-fn panic_handler(pi: &PanicInfo) -> ! {
-    let red_led: &mut Pa10<Output<OpenDrain>> = unsafe { mem::transmute(LED) };
-    red_led.set_high().ok();
-
-    logln_now!("~~~ PANIC ~~~");
-    logln_now!("{}", pi);
-    logln_now!("flushing log");
-    loop {
-        log::logger().flush();
-        wfi()
-    }
-}
-
-#[exception]
-fn HardFault(ef: &ExceptionFrame) -> ! {
-    let red_led: &mut Pa10<Output<OpenDrain>> = unsafe { mem::transmute(LED) };
-    red_led.set_high().ok();
-
-    log::logger().flush();
-    logln_now!("!!! Hard Fault - ef: {:?} !!!", ef);
-    logln_now!("flushing log");
-    loop {
-        log::logger().flush();
-        wfi()
-    }
-}
-
-#[interrupt]
-fn RTC() {
-    HANDLERS.call(0);
-}
-
-#[interrupt]
-fn USB() {
-    HANDLERS.call(1);
-}
-- 
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