Gpio module added

Cargo.toml

@@ -11,7 +11,7 @@ edition = "2018"
 cortex-m = "0.5"
 embedded-hal = "0.2"
 nb = "0.1"
-msp432p401r = { path = "../msp432p401r" }
+msp432p401r = { path = "../msp432-pac" }
 void = { version = "1.0", default-features = false }
 cast = { version = "0.2", default-features = false }
 

src/bitband.rs

@@ -0,0 +1,74 @@
+//! Bit-banding access for peripheral registers
+//!
+//! Accesses to the bit-band region translate to the same-width accesses in the
+//! target region, so it is important to use the correct pointer size for the desired
+//! access.
+//!
+//! Bit-band writes on the Cortex M4F translate to an atomic read/modify/write operation
+
+use core::ptr::{write_volatile, read_volatile};
+
+/// This is the first address in the SRAM bit-band region.
+const SRAM_BASE: usize = 0x2000_0000;
+/// This is the first address *beyond* the SRAM bit-band region.
+const SRAM_LIMIT: usize = 0x2000_8000;
+
+/// This is the first address in the peripheral bit-band region.
+const PERIPHERAL_BASE: usize  = 0x4000_0000;
+/// This is the first address *beyond* the peripheral bit-band region.
+const PERIPHERAL_LIMIT: usize = 0x4010_0000;
+
+/// Each bit-band alias region starts at this offset from the base of
+/// the region that it aliases.
+const ALIAS_OFFSET: usize = 0x0200_0000;
+
+const REGION_MASK: usize = 0xF000_0000;
+const WORD_MASK: usize   = 0x0FFF_0000;
+
+/// Atomically sets (via read/modify/write) a single bit at the given address
+/// without affecting other bits in that memory location.
+#[inline]
+pub unsafe fn set_bit<T>(address: *const T, bit: u8) {
+    let address = address as usize;
+    let bit_address = bitband_alias_of(address, bit);
+    write_volatile(bit_address as *mut _, 0x01);
+}
+
+/// Atomically clears (via read/modify/write) a single bit at the given address
+/// without affecting other bits in that memory location.
+#[inline]
+pub unsafe fn clear_bit<T>(address: *const T, bit: u8) {
+    let address = address as usize;
+    let bit_address = bitband_alias_of(address, bit);
+    write_volatile(bit_address as *mut _, 0x00);
+}
+
+/// Reads a single bit at the given address without affecting other
+/// bits in that memory location.
+#[inline]
+pub unsafe fn read_bit<T>(address: *const T, bit: u8) -> T {
+    let address = address as usize;
+    let bit_address = bitband_alias_of(address, bit);
+    read_volatile(bit_address as *const _)
+}
+
+/// Calculate the address in the bitband region of the given bit
+#[inline]
+fn bitband_alias_of(address: usize, bit: u8) -> usize {
+    // Only bits 0-31 are valid
+    assert!(bit < 32);
+
+    let region_base = address & REGION_MASK;
+    // Ensure the address falls in a bit-band region
+    assert!((region_base == SRAM_BASE && address < SRAM_LIMIT) ||
+            (region_base == PERIPHERAL_BASE && address < PERIPHERAL_LIMIT));
+
+    let bit_number = bit as usize;
+    let bit_band_base = region_base + ALIAS_OFFSET;
+
+    let byte_offset = address & WORD_MASK;
+    let bit_word_offset = (byte_offset * 32) + (bit_number * 4);
+    let bit_word_addr = bit_band_base + bit_word_offset;
+
+    bit_word_addr
+}

src/cs.rs

@@ -42,6 +42,7 @@ impl CsExt for CS {
 +--------+-----------------------+---------------+-------------------------------------+
 */
 
+/// The CS peripheral, constrained.
 pub struct Cs {
 
 }

src/gpio.rs

@@ -1,22 +1,628 @@
-//! General Purpose Input / Output
+//! # Digital Input / Output
+//!
+//! ## Hardware Summary:
+//!
+//! + Devices may have up to 11 I/O ports, most of which have 8 I/O lines.
+//! + Each I/O line can be configured to the input or output direction
+//! + Each I/O line can be individually read or written
+//! + Each I/O line can be individually configured for a pull-up/down resistor
+//! + Individual ports can be accessed byte-wise
+//! + Ports are also arranged in pairs; e.g. P1 and P2 together are PA
+//! + Port pairs can be accessed half-word-wise (16-bits at a time)
+//!
+//! ## API:
+//!
+//! With the `DIOExt` trait, you can consume the PAC-provided `DIO` and get back
+//! a `Parts` struct that breaks out individual pins. Each pin struct is
+//! parameterized by two typestate variables, one that describes the current I/O
+//! configuration (e.g. input w/pull up, output w/regular drive) and one that
+//! describes the current mode (e.g. GPIO, Primary peripheral).
+//!
+//! Depending on the current typestate, methods are available to transition to
+//! available states from the current one via methods that have names beginning
+//! with `into_`. Invalid transitions are not available.
+//!
+//! The `embedded_hal` trait `OutputPin` is provided for pins in `Gpio` mode
+//! with an output configuration. Additional methods for interacting with the
+//! hardware in ways not covered by HAL traits are provided in typestates where
+//! they are appropriate.
 
 use pac::DIO;
 use core::marker::PhantomData;
-use hal::digital::OutputPin;
 
-pub trait GpioExt {
-    type Parts;
+/// Extension trait to manage Digital I/O resources
+pub trait DIOExt {
 
-    /// Consume and split the device into its constituent parts
-    fn split(self) -> Self::Parts;
+    /// Consume and split the DIO device into individual pin proxies
+    fn split(self) -> Parts;
 }
 
+//
+// Input Pin Pull typestate
+//
+
+/// Types implementing this marker trait are typestate parameters to Input pins
+/// that determine the pull up/down resistor configuration.
+pub trait Pull {}
+
+/// An input of this type is internally floating; it has no pull up/down resistor.
+pub struct NoPull;
+impl Pull for NoPull {}
+
+/// An input of this type is configured with an internal pull-up resistor.
+pub struct PullUp;
+impl Pull for PullUp {}
+
+/// An input of this type is configured with an internal pull-down resistor.
+pub struct PullDown;
+impl Pull for PullDown {}
+
+//
+// Output Pin Drive Strength typestate
+//
+
+/// Types implementing this marker trait are typestate parameters to Output pins
+/// that determine the drive strength of the pin
+pub trait Drive {}
+
+/// An output of this type is configured for standard drive strength.
+pub struct Regular;
+impl Drive for Regular {}
+
+/// An output of this type is configured for strong drive strength.
+pub struct Strong;
+impl Drive for Strong {}
+
+//
+// I/O Pin Mode typestate
+//
+
+/// Types implementing this marker trait are typestate parameters to Input and
+/// Output pins that determine which I/O function they are configured for
+pub trait Mode {}
+
+/// This type represents a pin configured as a general purpose I/O pin.
+pub struct Gpio;
+impl Mode for Gpio {}
+
+/// This type represents a pin configured to serve its primary peripheral.
+pub struct Primary;
+impl Mode for Primary {}
+
+/// This type represents a pin configured to serve its secondary peripheral.
+pub struct Secondary;
+impl Mode for Secondary {}
+
+/// This type represents a pin configured to serve its tertiary peripheral.
+pub struct Tertiary;
+impl Mode for Tertiary {}
+
+//
+// I/O Pin Config typestate
+//
+
+/// Types implementing this marker trait are typestate parameters to DIO pins
+/// that determine which operations are valid for their configuration
+pub trait PinConfig {}
+
 /// Represents a pin configured for input.
-pub struct Input<MODE> {
-    _mode: PhantomData<MODE>,
+pub struct Input<P: Pull> {
+    _pull: PhantomData<P>,
 }
+impl<P: Pull> PinConfig for Input<P> {}
 
 /// Represents a pin configured for output.
-pub struct Output<MODE> {
-    _mode: PhantomData<MODE>,
+pub struct Output<D: Drive> {
+    _drive: PhantomData<D>,
 }
+impl<D: Drive> PinConfig for Output<D> {}
+
+
+
+//
+// Temp manual stuff, to replace with a macro
+//
+
+macro_rules! gpio {
+    ([$($PX_i:ident : ($px_i:ident, $i:expr, $px_in:ident, $px_out:ident, $px_dir:ident, $px_ren:ident, $px_ds:ident, $px_sel0:ident, $px_sel1:ident, $px_selc:ident),)+]) => {
+        /// Individual types for each I/O pin.
+        ///
+        /// These types are parameterized over phantom types that represent the
+        /// state of the pins, but the pin types themselves are zero-sized.
+        /// Methods are provided to transition between states and to perform I/O
+        /// operations.
+        pub mod pins {
+            use hal::digital::OutputPin;
+            use core::marker::PhantomData;
+            use crate::bitband;
+            use super::*;
+
+            $(
+                /// The type of an individual pin, parameterized by its state
+                /// and mode.
+                pub struct $PX_i<C: PinConfig, M: Mode> {
+                    _config: PhantomData<C>,
+                    _mode: PhantomData<M>,
+                }
+
+                impl<C: PinConfig, M: Mode> Default for $PX_i<C, M> {
+                    fn default() -> $PX_i<C, M> {
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                // Functions specific to Input pins
+                impl<M: Mode, P: Pull> $PX_i<Input<P>, M> {
+                    /// Consume the input pin, returning the same pin configured
+                    /// as an output pin in the same mode. It will have regular
+                    /// drive strength.
+                    pub fn into_output(self) -> $PX_i<Output<Regular>, M> {
+                        self.regular_drive_strength();
+                        self.output();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                    /// Consume the input pin, returning the same pin configured
+                    /// as an output pin in the same mode. It will have strong
+                    /// drive strength if the physical pin supports it.
+                    pub fn into_strong_output(self) -> $PX_i<Output<Strong>, M> {
+                        self.strong_drive_strength();
+                        self.output();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<M: Mode> $PX_i<Input<NoPull>, M> {
+                    /// Consume the floating input pin, returning the same pin
+                    /// configured as an input with pull-up resistor.
+                    pub fn into_pullup(self) -> $PX_i<Input<PullUp>, M> {
+                        self.pull_up();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                    /// Consume the floating input pin, returning the same pin
+                    /// configured as an input with pull-down resistor.
+                    pub fn into_pulldown(self) -> $PX_i<Input<PullDown>, M> {
+                        self.pull_down();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<M: Mode> $PX_i<Input<PullUp>, M> {
+                    /// Consume the input pin with pull-up resistor, returning
+                    /// the same pin configured as a floating input (no pull-up/
+                    /// down resistor).
+                    pub fn into_floating(self) -> $PX_i<Input<NoPull>, M> {
+                        self.pull_up();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                    /// Consume the input pin with pull-up resistor, returning
+                    /// the same pin configured as an input with pull-down
+                    /// resistor.
+                    pub fn into_pulldown(self) -> $PX_i<Input<PullDown>, M> {
+                        self.pull_down();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<M: Mode> $PX_i<Input<PullDown>, M> {
+                    /// Consume the input pin with pull-down resistor, returning
+                    /// the same pin configured as an input with pull-up resistor.
+                    pub fn into_pullup(self) -> $PX_i<Input<PullUp>, M> {
+                        self.pull_up();
+                        $PX_i {_config: PhantomData, _mode: PhantomData }
+                    }
+                    /// Consume the input pin with pull-down resistor, returning
+                    /// the same pin configured as a floating input (no pull-up/
+                    /// down resistor).
+                    pub fn into_floating(self) -> $PX_i<Input<NoPull>, M> {
+                        self.pull_down();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                // Functions specific to Input pins in Gpio mode
+                impl<P: Pull> $PX_i<Input<P>, Gpio> {
+                    /// Read the state of the pin.
+                    ///
+                    /// If the pin is in a logic-high state, this returns 1;
+                    /// if the pin is in a logic-low state, this returns 0.
+                    pub fn read_pin(&self) -> u16 {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let din = &dio.$px_in as *const _ as *const u16;
+                        unsafe {
+                            bitband::read_bit(din, $i)
+                        }
+                    }
+                }
+
+                // Functions specific to Output pins
+                impl<M: Mode, D: Drive> $PX_i<Output<D>, M> {
+                    /// Consume the output pin, returning the same pin
+                    /// configured as a floating input (no pull-up/down
+                    /// resistor).
+                    pub fn into_floating_input(self) -> $PX_i<Input<NoPull>, M> {
+                        self.floating();
+                        self.input();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Consume the output pin, returning the same pin
+                    /// configured as an input with pull-up resistor.
+                    pub fn into_input_with_pullup(self) -> $PX_i<Input<PullUp>, M> {
+                        self.pull_up();
+                        self.input();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Consume the output pin, returning the same pin
+                    /// configured as an input with pull-down resistor.
+                    pub fn into_input_with_pulldown(self) -> $PX_i<Input<PullDown>, M> {
+                        self.pull_down();
+                        self.input();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<M: Mode> $PX_i<Output<Regular>, M> {
+                    /// Consume the output pin of regular drive strength,
+                    /// returning the same pin configured to strong drive
+                    /// strength.
+                    pub fn into_strong(self) -> $PX_i<Output<Strong>, M> {
+                        self.strong_drive_strength();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<M: Mode> $PX_i<Output<Strong>, M> {
+                    /// Consume the output pin of strong drive strength,
+                    /// returning the same pin configured to regular drive
+                    /// strength.
+                    pub fn into_regular(self) -> $PX_i<Output<Regular>, M> {
+                        self.regular_drive_strength();
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+
+                // Functions specific to Output pins in Gpio mode
+                impl<D: Drive> OutputPin for $PX_i<Output<D>, Gpio> {
+                    fn set_high(&mut self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let dout = &dio.$px_out as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(dout, $i);
+                        }
+                    }
+
+                    fn set_low(&mut self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let dout = &dio.$px_out as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(dout, $i);
+                        }
+                    }
+                }
+
+                // Mode changing functions
+                //
+                //           SEL1     SEL0
+                // Gpio       0        0
+                // Primary    0        1
+                // Secondary  1        0
+                // Tertiary   1        1
+                //
+                // Setting SELC toggles both SEL1 and SEL0
+                //
+                impl<C: PinConfig> $PX_i<C, Gpio> {
+                    /// Change the pin mode from Gpio mode to the Primary
+                    /// peripheral mode.
+                    pub fn into_primary(self) -> $PX_i<C, Primary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel0 = &dio.$px_sel0 as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(sel0, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Gpio mode into the Secondary
+                    /// peripheral mode.
+                    pub fn into_secondary(self) -> $PX_i<C, Secondary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel1 = &dio.$px_sel1 as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(sel1, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Gpio mode into the Tertiary
+                    /// peripheral mode.
+                    pub fn into_tertiary(self) -> $PX_i<C, Tertiary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let selc = &dio.$px_selc as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(selc, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<C: PinConfig> $PX_i<C, Primary> {
+                    /// Change the pin mode from Primary peripheral mode into
+                    /// the Gpio mode.
+                    pub fn into_gpio(self) -> $PX_i<C, Gpio> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel0 = &dio.$px_sel0 as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(sel0, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Primary peripheral mode into
+                    /// the Secondary peripheral mode.
+                    pub fn into_secondary(self) -> $PX_i<C, Secondary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let selc = &dio.$px_selc as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(selc, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Primary peripheral mode into
+                    /// the Tertiary peripheral mode.
+                    pub fn into_tertiary(self) -> $PX_i<C, Tertiary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel1 = &dio.$px_sel1 as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(sel1, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<C: PinConfig> $PX_i<C, Secondary> {
+                    /// Change the pin mode from Secondary peripheral mode into
+                    /// into the Primary peripheral mode.
+                    pub fn into_primary(self) -> $PX_i<C, Primary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let selc = &dio.$px_selc as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(selc, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Secondary peripheral mode into
+                    /// the Gpio mode.
+                    pub fn into_gpio(self) -> $PX_i<C, Secondary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel1 = &dio.$px_sel1 as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(sel1, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Secondary peripheral mode into
+                    /// the Tertiary peripheral mode.
+                    pub fn into_tertiary(self) -> $PX_i<C, Tertiary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel0 = &dio.$px_sel0 as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(sel0, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+                impl<C: PinConfig> $PX_i<C, Tertiary> {
+                    /// Change the pin mode from Tertiary peripheral mode into
+                    /// the Primary peripheral mode.
+                    pub fn into_primary(self) -> $PX_i<C, Primary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel1 = &dio.$px_sel1 as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(sel1, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Tertiary peripheral mode into
+                    /// the Secondary peripheral mode.
+                    pub fn into_secondary(self) -> $PX_i<C, Secondary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let sel0 = &dio.$px_sel0 as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(sel0, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+
+                    /// Change the pin mode from Tertiary peripheral mode into
+                    /// the Gpio mode.
+                    pub fn into_gpio(self) -> $PX_i<C, Tertiary> {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let selc = &dio.$px_selc as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(selc, $i);
+                        }
+                        $PX_i { _config: PhantomData, _mode: PhantomData }
+                    }
+                }
+
+
+                // Private and all-pin functions
+                impl<C: PinConfig, M: Mode> $PX_i<C, M> {
+                    fn output(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let dir = &dio.padir as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(dir, $i);
+                        }
+                    }
+                    fn input(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let dir = &dio.padir as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(dir, $i);
+                        }
+                    }
+                    fn strong_drive_strength(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let ds = &dio.$px_ds as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(ds, $i);
+                        }
+                    }
+                    fn regular_drive_strength(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let ds = &dio.$px_ds as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(ds, $i);
+                        }
+                    }
+                    fn pull_up(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let ren = &dio.$px_ren as *const _ as *const u16;
+                        let out = &dio.$px_out as *const _ as *const u16;
+                        unsafe {
+                            bitband::set_bit(out, $i);
+                            bitband::set_bit(ren, $i);
+                        }
+                    }
+                    fn pull_down(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let ren = &dio.$px_ren as *const _ as *const u16;
+                        let out = &dio.$px_out as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(out, $i);
+                            bitband::set_bit(ren, $i);
+                        }
+                    }
+                    fn floating(&self) {
+                        let dio = unsafe { &*DIO::ptr() };
+                        let ren = &dio.$px_ren as *const _ as *const u16;
+                        let out = &dio.$px_out as *const _ as *const u16;
+                        unsafe {
+                            bitband::clear_bit(out, $i);
+                            bitband::clear_bit(ren, $i);
+                        }
+                    }
+                }
+            )+
+        }
+
+        /// The DIO peripheral split into individual pins.
+        pub struct Parts {
+            $(
+                /// One of the DIO pins. It defaults to a floating input in Gpio mode.
+                pub $px_i: pins::$PX_i<Input<NoPull>, Gpio>,
+            )+
+        }
+
+        impl DIOExt for DIO {
+            fn split(self) -> Parts {
+                Parts {
+                    $(
+                        $px_i: Default::default(),
+                    )+
+                }
+            }
+        }
+    }
+}
+
+gpio!([
+    P1_0: (p1_0, 0, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_1: (p1_1, 1, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_2: (p1_2, 2, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_3: (p1_3, 3, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_4: (p1_4, 4, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_5: (p1_5, 5, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_6: (p1_6, 6, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P1_7: (p1_7, 7, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+
+    P2_0: (p2_0, 8, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_1: (p2_1, 9, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_2: (p2_2, 10, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_3: (p2_3, 11, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_4: (p2_4, 12, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_5: (p2_5, 13, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_6: (p2_6, 14, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+    P2_7: (p2_7, 15, pain, paout, padir, paren, pads, pasel0, pasel1, paselc),
+
+    P3_0: (p3_0, 0, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_1: (p3_1, 1, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_2: (p3_2, 2, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_3: (p3_3, 3, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_4: (p3_4, 4, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_5: (p3_5, 5, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_6: (p3_6, 6, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P3_7: (p3_7, 7, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+
+    P4_0: (p4_0, 8, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_1: (p4_1, 9, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_2: (p4_2, 10, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_3: (p4_3, 11, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_4: (p4_4, 12, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_5: (p4_5, 13, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_6: (p4_6, 14, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+    P4_7: (p4_7, 15, pbin, pbout, pbdir, pbren, pbds, pbsel0, pbsel1, pbselc),
+
+    P5_0: (p5_0, 0, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_1: (p5_1, 1, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_2: (p5_2, 2, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_3: (p5_3, 3, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_4: (p5_4, 4, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_5: (p5_5, 5, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_6: (p5_6, 6, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P5_7: (p5_7, 7, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+
+    P6_0: (p6_0, 8, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_1: (p6_1, 9, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_2: (p6_2, 10, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_3: (p6_3, 11, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_4: (p6_4, 12, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_5: (p6_5, 13, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_6: (p6_6, 14, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+    P6_7: (p6_7, 15, pcin, pcout, pcdir, pcren, pcds, pcsel0, pcsel1, pcselc),
+
+    P7_0: (p7_0, 0, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_1: (p7_1, 1, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_2: (p7_2, 2, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_3: (p7_3, 3, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_4: (p7_4, 4, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_5: (p7_5, 5, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_6: (p7_6, 6, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P7_7: (p7_7, 7, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+
+    P8_0: (p8_0, 8, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_1: (p8_1, 9, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_2: (p8_2, 10, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_3: (p8_3, 11, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_4: (p8_4, 12, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_5: (p8_5, 13, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_6: (p8_6, 14, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+    P8_7: (p8_7, 15, pdin, pdout, pddir, pdren, pdds, pdsel0, pdsel1, pdselc),
+
+    P9_0: (p9_0, 0, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_1: (p9_1, 1, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_2: (p9_2, 2, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_3: (p9_3, 3, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_4: (p9_4, 4, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_5: (p9_5, 5, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_6: (p9_6, 6, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P9_7: (p9_7, 7, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+
+    P10_0: (p10_0, 8, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_1: (p10_1, 9, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_2: (p10_2, 10, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_3: (p10_3, 11, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_4: (p10_4, 12, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_5: (p10_5, 13, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_6: (p10_6, 14, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+    P10_7: (p10_7, 15, pein, peout, pedir, peren, peds, pesel0, pesel1, peselc),
+
+]);

src/lib.rs

@@ -20,6 +20,7 @@ extern crate embedded_hal as hal;
 extern crate msp432p401r as pac;
 
 pub mod prelude;
+pub mod bitband;
 pub mod gpio;
 pub mod delay;
 pub mod cs;

src/prelude.rs

@@ -1,3 +1,6 @@
 //! Prelude
 
+pub use crate::cs::CsExt as _msp432_hal_cs_CsExt;
+pub use crate::gpio::DIOExt as _msp432_hal_gpio_DIOExt;
 pub use hal::prelude::*;
+pub use crate::time::U32Ext as _msp432_hal_time_U32Ext;