1 files changed, 118 insertions, 0 deletions
diff --git a/src/bringup/mod.rs b/src/bringup/mod.rs
new file mode 100644
index 0000000..71c2d4b
--- /dev/null
+++ b/src/bringup/mod.rs
@@ -0,0 +1,118 @@
+use molybdos::reexport::*;
+
+use embassy_rp::{
+    adc,
+    adc::Adc,
+    gpio::{
+        Level,
+        Output,
+        Pin,
+    },
+    peripherals::{
+        SPI0,
+        SPI1,
+        USB,
+    },
+    spi,
+    spi::{
+        Async,
+        Spi,
+    },
+    watchdog::Watchdog,
+};
+use embassy_sync::{
+    blocking_mutex::raw::{
+        CriticalSectionRawMutex,
+        RawMutex,
+    },
+    mutex::Mutex,
+};
+use static_cell::StaticCell;
+use tap::Pipe;
+
+use molybdos::pal::StaticOutput;
+
+embassy_rp::bind_interrupts! {
+    struct Irqs {
+        USBCTRL_IRQ => embassy_rp::usb::InterruptHandler<USB>;
+        ADC_IRQ_FIFO => adc::InterruptHandler;
+    }
+}
+
+static BME_SPI: StaticCell<Mutex<CriticalSectionRawMutex, Spi<SPI1, Async>>> = StaticCell::new();
+static SD_SPI: StaticCell<Mutex<CriticalSectionRawMutex, Spi<SPI0, Async>>> = StaticCell::new();
+static ADC: StaticCell<Mutex<CriticalSectionRawMutex, Adc<adc::Async>>> = StaticCell::new();
+
+pub struct Split<BmeSpi, BmeSpiMutex, SdSpi, SdSpiMutex>
+where
+    SdSpiMutex: RawMutex + 'static,
+    SdSpi: 'static,
+    BmeSpiMutex: RawMutex + 'static,
+    BmeSpi: 'static,
+{
+    pub sd_spi:  &'static Mutex<SdSpiMutex, SdSpi>,
+    pub sd_cs:   StaticOutput,
+    pub bme_spi: &'static Mutex<BmeSpiMutex, BmeSpi>,
+    pub bme_cs:  StaticOutput,
+    pub wdt:     Watchdog,
+    pub usb:     molybdos::pal::UsbDriver,
+
+    pub adc: &'static Mutex<CriticalSectionRawMutex, Adc<'static, adc::Async>>,
+    // pub leds: [StaticOutput; crate::N_LED],
+}
+
+pub fn split(
+    config: embassy_rp::config::Config,
+) -> Split<crate::BMESpi, CriticalSectionRawMutex, crate::SdSpi, CriticalSectionRawMutex> {
+    let periphs = embassy_rp::init(config);
+
+    let wdt = Watchdog::new(periphs.WATCHDOG);
+
+    let bme_cs = periphs.PIN_5.degrade().pipe(|cs| Output::new(cs, Level::High));
+    let bme_spi = {
+        let sck = periphs.PIN_10;
+        let mosi = periphs.PIN_11;
+        let miso = periphs.PIN_8;
+
+        let mut conf = spi::Config::default();
+        conf.frequency = 1_000_000;
+
+        let bme_spi =
+            Spi::new(periphs.SPI1, sck, mosi, miso, periphs.DMA_CH0, periphs.DMA_CH1, conf)
+                .pipe(Mutex::<CriticalSectionRawMutex, _>::new);
+        BME_SPI.init(bme_spi)
+    };
+
+    let sd_cs = periphs.PIN_9.degrade().pipe(|cs| Output::new(cs, Level::High));
+    let sd_spi = {
+        let mosi = periphs.PIN_19;
+        let sck = periphs.PIN_18;
+        let miso = periphs.PIN_20;
+
+        let mut conf = spi::Config::default();
+        conf.frequency = 16_000_000;
+
+        let sd_spi =
+            Spi::new(periphs.SPI0, sck, mosi, miso, periphs.DMA_CH3, periphs.DMA_CH4, conf)
+                .pipe(Mutex::new);
+
+        SD_SPI.init(sd_spi)
+    };
+
+    let usb_driver = embassy_rp::usb::Driver::new(periphs.USB, Irqs);
+
+    let adc = Adc::new(periphs.ADC, Irqs, adc::Config::default());
+
+    let adc = ADC.init(Mutex::new(adc));
+
+    Split {
+        sd_spi,
+        sd_cs,
+        bme_spi,
+        bme_cs,
+        wdt,
+        usb: usb_driver,
+
+        adc,
+    }
+}