11 Commits

Author SHA1 Message Date
42a3f4c104 fixes 2025-07-17 23:33:48 -06:00
dd909a7f4a fix text not showing up right away 2025-07-14 00:47:44 -06:00
c1b49622a3 update screen driver 2025-07-14 00:39:42 -06:00
7f8e10d33d working better, but keypresses delayed 2025-07-13 01:14:42 -06:00
a537d9ea69 kinda working 2025-07-12 13:43:25 -06:00
19b52eb7a9 cargo fix 2025-07-06 11:14:04 -06:00
c387b5ebf8 update display driver 2025-07-06 11:10:41 -06:00
a0fb1a0da5 remove keyboard fifo 2025-07-02 20:23:21 -06:00
65ad7bab48 WIP 2025-07-02 20:15:21 -06:00
5e537be5a3 keyboard & peripheral enhancement 2025-06-26 20:00:44 -06:00
b3e721a8be working keyboard 2025-06-26 16:33:16 -06:00
7 changed files with 458 additions and 623 deletions

474
Cargo.lock generated
View File

@@ -21,12 +21,6 @@ dependencies = [
"memchr",
]
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@@ -48,7 +42,7 @@ version = "4.0.0"
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[[package]]
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@@ -208,21 +205,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -543,6 +518,15 @@ dependencies = [
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@@ -612,7 +596,7 @@ dependencies = [
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@@ -892,10 +868,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -1025,11 +1001,6 @@ name = "hashbrown"
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@@ -1041,27 +1012,12 @@ dependencies = [
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@@ -1135,12 +1063,6 @@ dependencies = [
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@@ -1255,15 +1167,6 @@ dependencies = [
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@@ -1286,15 +1189,6 @@ version = "0.4.27"
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@@ -1307,17 +1201,6 @@ version = "2.1.0"
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name = "time"
version = "0.3.41"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
dependencies = [
"deranged",
"num-conv",
"powerfmt",
"time-core",
]
[[package]]
name = "time-core"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
[[package]]
name = "tiny-keccak"
version = "2.0.2"
@@ -2188,35 +1971,12 @@ version = "1.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
[[package]]
name = "unicode-segmentation"
version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
[[package]]
name = "unicode-truncate"
version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8fbf03860ff438702f3910ca5f28f8dac63c1c11e7efb5012b8b175493606330"
dependencies = [
"itertools 0.13.0",
"unicode-segmentation",
"unicode-width 0.2.0",
]
[[package]]
name = "unicode-width"
version = "0.1.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
[[package]]
name = "unicode-width"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
[[package]]
name = "unicode-xid"
version = "0.2.6"
@@ -2356,7 +2116,7 @@ version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
dependencies = [
"windows-sys",
"windows-sys 0.59.0",
]
[[package]]
@@ -2371,7 +2131,16 @@ version = "0.59.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
dependencies = [
"windows-targets",
"windows-targets 0.52.6",
]
[[package]]
name = "windows-sys"
version = "0.60.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
dependencies = [
"windows-targets 0.53.2",
]
[[package]]
@@ -2380,14 +2149,30 @@ version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
"windows_aarch64_gnullvm 0.52.6",
"windows_aarch64_msvc 0.52.6",
"windows_i686_gnu 0.52.6",
"windows_i686_gnullvm 0.52.6",
"windows_i686_msvc 0.52.6",
"windows_x86_64_gnu 0.52.6",
"windows_x86_64_gnullvm 0.52.6",
"windows_x86_64_msvc 0.52.6",
]
[[package]]
name = "windows-targets"
version = "0.53.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
dependencies = [
"windows_aarch64_gnullvm 0.53.0",
"windows_aarch64_msvc 0.53.0",
"windows_i686_gnu 0.53.0",
"windows_i686_gnullvm 0.53.0",
"windows_i686_msvc 0.53.0",
"windows_x86_64_gnu 0.53.0",
"windows_x86_64_gnullvm 0.53.0",
"windows_x86_64_msvc 0.53.0",
]
[[package]]
@@ -2396,48 +2181,105 @@ version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
[[package]]
name = "windows_aarch64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
[[package]]
name = "windows_aarch64_msvc"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
[[package]]
name = "windows_i686_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
[[package]]
name = "windows_i686_gnu"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
[[package]]
name = "windows_i686_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
[[package]]
name = "windows_i686_gnullvm"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
[[package]]
name = "windows_i686_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
[[package]]
name = "windows_i686_msvc"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
[[package]]
name = "windows_x86_64_gnu"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
[[package]]
name = "windows_x86_64_gnu"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_gnullvm"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
[[package]]
name = "windows_x86_64_msvc"
version = "0.53.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
[[package]]
name = "wyz"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
dependencies = [
"tap",
]
[[package]]
name = "zerocopy"
version = "0.8.26"

View File

@@ -65,18 +65,16 @@ cortex-m = { version = "0.7.7" }
cortex-m-rt = "0.7.5"
panic-probe = "0.3"
portable-atomic = { version = "1.11", features = ["critical-section"] }
static_cell = "2.1.1"
talc = "4.4.3"
defmt = { version = "0.3", optional = true }
defmt-rtt = "0.4.2"
embedded-graphics = { version = "0.8.1" }
embedded-sdmmc = { git = "https://github.com/Be-ing/embedded-sdmmc-rs", branch = "bisync", default-features = false }
st7365p-lcd = { git = "https://github.com/legitcamper/st7365p-lcd-rs" }
mousefood = "0.2.1"
ratatui = { version = "0.30.0-alpha.4", default-features = false }
spin = "0.10.0"
st7365p-lcd = { git = "https://github.com/legitcamper/st7365p-lcd-rs", branch = "async" }
[patch.crates-io]
mousefood = { git = "https://github.com/j-g00da/mousefood" }
static_cell = "2.1.1"
bitflags = "2.9.1"
talc = "4.4.3"
spin = "0.10.0"
heapless = "0.8.0"

View File

@@ -1,27 +1,35 @@
use core::sync::atomic::Ordering;
use defmt::info;
use embassy_rp::{
gpio::{Level, Output},
peripherals::{PIN_13, PIN_14, PIN_15, SPI1},
spi::{Blocking, Spi},
spi::{Async, Spi},
};
use embassy_time::{Delay, Timer};
use embassy_sync::{blocking_mutex::raw::ThreadModeRawMutex, signal::Signal};
use embassy_time::{Delay, Instant, Timer};
use embedded_graphics::{
Drawable, Pixel,
pixelcolor::{Rgb565, raw::RawU16},
prelude::{DrawTarget, OriginDimensions, Point, Primitive, RawData, RgbColor, Size},
primitives::{PrimitiveStyle, Rectangle, StyledDrawable},
Drawable,
draw_target::DrawTarget,
mono_font::{MonoTextStyle, ascii::FONT_10X20},
pixelcolor::Rgb565,
prelude::{Dimensions, Point, RgbColor, Size},
primitives::Rectangle,
text::{Alignment, Text},
};
use embedded_hal_bus::spi::ExclusiveDevice;
use mousefood::prelude::*;
use ratatui::{
Frame, Terminal,
style::{Color, Style},
widgets::Paragraph,
};
use st7365p_lcd::ST7365P;
use portable_atomic::AtomicBool;
use st7365p_lcd::{FrameBuffer, ST7365P};
#[embassy_executor::task]
pub async fn display_task(
spi: Spi<'static, SPI1, Blocking>,
use crate::LAST_TEXT_RECT;
const SCREEN_WIDTH: usize = 320;
const SCREEN_HEIGHT: usize = 320;
pub static DISPLAY_SIGNAL: Signal<ThreadModeRawMutex, ()> = Signal::new();
pub async fn display_handler(
spi: Spi<'static, SPI1, Async>,
cs: PIN_13,
data: PIN_14,
reset: PIN_15,
@@ -33,86 +41,47 @@ pub async fn display_task(
Some(Output::new(reset, Level::High)),
false,
true,
320,
320,
Delay,
);
display.init(&mut Delay).unwrap();
display.set_address_window(0, 0, 319, 319).unwrap();
display.set_custom_orientation(0x40).unwrap(); // inverts X axis (reverts the natural mirroring)
let mut framebuffer: FrameBuffer<
SCREEN_WIDTH,
SCREEN_HEIGHT,
{ SCREEN_WIDTH * SCREEN_HEIGHT },
> = FrameBuffer::new();
display.init().await.unwrap();
display.set_custom_orientation(0x40).await.unwrap();
framebuffer.draw(&mut display).await.unwrap();
display.set_on().await.unwrap();
let mut virtual_display = VirtualDisplay::new(display, 320, 320);
let backend = EmbeddedBackend::new(&mut virtual_display, EmbeddedBackendConfig::default());
let mut terminal = Terminal::new(backend).unwrap();
DISPLAY_SIGNAL.signal(());
loop {
terminal.draw(draw).unwrap();
}
loop {
Timer::after_millis(100).await
}
}
DISPLAY_SIGNAL.wait().await;
fn draw(frame: &mut Frame) {
let greeting = Paragraph::new("Hello World!\nLine2").style(Style::new().red());
frame.render_widget(greeting, frame.area());
}
let text_string = crate::STRING.lock().await.clone();
/// simple abstraction over real display & resolution to reduce frame buffer size
/// by cutting the resolution by 1/4
struct VirtualDisplay {
display: ST7365P<
ExclusiveDevice<Spi<'static, SPI1, Blocking>, Output<'static>, Delay>,
Output<'static>,
Output<'static>,
>,
width: u32,
height: u32,
}
let text = Text::with_alignment(
&text_string,
Point::new(160, 160),
MonoTextStyle::new(&FONT_10X20, Rgb565::RED),
Alignment::Center,
);
impl VirtualDisplay {
pub fn new(
display: ST7365P<
ExclusiveDevice<Spi<'static, SPI1, Blocking>, Output<'static>, Delay>,
Output<'static>,
Output<'static>,
>,
width: u32,
height: u32,
) -> Self {
Self {
display,
width: width / 2,
height: height / 2,
{
let rect = LAST_TEXT_RECT.lock().await;
if let Some(rect) = *rect.borrow() {
framebuffer.fill_solid(&rect, Rgb565::BLACK).unwrap();
}
*rect.borrow_mut() = Some(text.bounding_box());
}
}
}
impl DrawTarget for VirtualDisplay {
type Color = Rgb565;
type Error = ();
fn draw_iter<I>(&mut self, pixels: I) -> Result<(), Self::Error>
where
I: IntoIterator<Item = Pixel<Self::Color>>,
{
for Pixel(coord, color) in pixels.into_iter() {
let px = coord.x as u16 * 2;
let py = coord.y as u16 * 2;
let raw_color = RawU16::from(color).into_inner();
// Draw the 2x2 block on the underlying hardware
self.display.set_pixel(px, py, raw_color)?;
self.display.set_pixel(px + 1, py, raw_color)?;
self.display.set_pixel(px, py + 1, raw_color)?;
self.display.set_pixel(px + 1, py + 1, raw_color)?;
}
Ok(())
}
}
impl OriginDimensions for VirtualDisplay {
fn size(&self) -> Size {
Size::new(self.width, self.height)
text.draw(&mut framebuffer).unwrap();
let start = Instant::now();
framebuffer
.partial_draw_batched(&mut display)
.await
.unwrap();
info!("Elapsed {}ms", start.elapsed().as_millis());
}
}

View File

@@ -1,73 +1,82 @@
#![feature(impl_trait_in_assoc_type)]
#![feature(ascii_char)]
#![no_std]
#![no_main]
#[cfg(feature = "defmt")]
use defmt::*;
use crate::{
display::DISPLAY_SIGNAL,
peripherals::keyboard::{KeyCode, KeyState, read_keyboard_fifo},
};
use {defmt_rtt as _, panic_probe as _};
use core::cell::RefCell;
use embassy_executor::Spawner;
use embassy_futures::join::join;
use embassy_rp::peripherals::I2C1;
use embassy_rp::spi::Spi;
use embassy_rp::{
bind_interrupts,
gpio::{Level, Output},
i2c,
i2c::I2c,
spi,
};
use embassy_sync::blocking_mutex::raw::NoopRawMutex;
use embassy_sync::channel::Channel;
use embassy_rp::{i2c, i2c::I2c, spi};
use embassy_sync::blocking_mutex::raw::ThreadModeRawMutex;
use embassy_sync::mutex::Mutex;
use embassy_time::Timer;
use embedded_hal_bus::spi::ExclusiveDevice;
use embedded_sdmmc::asynchronous::{File, SdCard, ShortFileName, VolumeIdx, VolumeManager};
use static_cell::StaticCell;
use talc::*;
use embedded_graphics::primitives::Rectangle;
use heapless::String;
mod peripherals;
use peripherals::{keyboard::KeyEvent, peripherals_task};
use peripherals::conf_peripherals;
mod display;
use display::display_task;
use display::display_handler;
embassy_rp::bind_interrupts!(struct Irqs {
I2C1_IRQ => i2c::InterruptHandler<I2C1>;
});
static mut ARENA: [u8; 400_000] = [0; 400_000];
#[global_allocator]
static ALLOCATOR: Talck<spin::Mutex<()>, ClaimOnOom> = Talc::new(unsafe {
// if we're in a hosted environment, the Rust runtime may allocate before
// main() is called, so we need to initialize the arena automatically
ClaimOnOom::new(Span::from_array(core::ptr::addr_of!(ARENA).cast_mut()))
})
.lock();
static STRING: Mutex<ThreadModeRawMutex, String<25>> = Mutex::new(String::new());
static LAST_TEXT_RECT: Mutex<ThreadModeRawMutex, RefCell<Option<Rectangle>>> =
Mutex::new(RefCell::new(None));
#[embassy_executor::main]
async fn main(spawner: Spawner) {
async fn main(_spawner: Spawner) {
let p = embassy_rp::init(Default::default());
static KEYBOARD_EVENTS: StaticCell<Channel<NoopRawMutex, KeyEvent, 10>> = StaticCell::new();
let keyboard_events = KEYBOARD_EVENTS.init(Channel::new());
STRING.lock().await.push_str("Press Del").unwrap();
// configure keyboard event handler
let config = i2c::Config::default();
let mut config = i2c::Config::default();
config.frequency = 400_000;
let i2c1 = I2c::new_async(p.I2C1, p.PIN_7, p.PIN_6, Irqs, config);
spawner
.spawn(peripherals_task(i2c1, keyboard_events.sender()))
.unwrap();
conf_peripherals(i2c1).await;
// configure display handler
let mut config = spi::Config::default();
config.frequency = 16_000_000;
let spi1 = spi::Spi::new_blocking(p.SPI1, p.PIN_10, p.PIN_11, p.PIN_12, config);
spawner
.spawn(display_task(spi1, p.PIN_13, p.PIN_14, p.PIN_15))
.unwrap();
let spi1 = spi::Spi::new(
p.SPI1, p.PIN_10, p.PIN_11, p.PIN_12, p.DMA_CH0, p.DMA_CH1, config,
);
let receiver = keyboard_events.receiver();
loop {
let key = receiver.receive().await;
info!("got key: {}", key.key as u8);
}
join(
async {
loop {
Timer::after_millis(20).await;
if let Some(key) = read_keyboard_fifo().await
&& key.state == KeyState::Pressed
{
let mut string = STRING.lock().await;
match key.key {
KeyCode::Backspace => {
string.pop().unwrap();
}
KeyCode::Del => {
string.clear();
}
KeyCode::Char(c) => {
string.push(c).unwrap();
}
_ => (),
}
DISPLAY_SIGNAL.signal(());
}
}
},
display_handler(spi1, p.PIN_13, p.PIN_14, p.PIN_15),
)
.await;
}

View File

@@ -1,20 +0,0 @@
use embassy_rp::{
i2c::{Async, I2c},
peripherals::I2C1,
};
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, mutex::Mutex, watch::Watch};
const REG_ID_BAT: u8 = 0x0b;
pub static BATTERY_PCT: Watch<CriticalSectionRawMutex, u8, 1> = Watch::new();
pub async fn read_battery(i2c: &mut I2c<'static, I2C1, Async>) {
let mut buf = [0_u8; 2];
i2c.write_read_async(super::MCU_ADDR, [REG_ID_BAT], &mut buf)
.await
.unwrap();
if buf[0] == REG_ID_BAT {
BATTERY_PCT.sender().send(buf[0]);
}
}

View File

@@ -1,11 +1,5 @@
use embassy_rp::{
i2c::{Async, I2c},
peripherals::I2C1,
};
use embassy_sync::{
blocking_mutex::raw::{CriticalSectionRawMutex, NoopRawMutex},
channel::Sender,
};
use crate::peripherals::PERIPHERAL_BUS;
const REG_ID_KEY: u8 = 0x04;
const REG_ID_FIF: u8 = 0x09;
@@ -14,10 +8,10 @@ const KEY_CAPSLOCK: u8 = 1 << 5;
const KEY_NUMLOCK: u8 = 1 << 6;
const KEY_COUNT_MASK: u8 = 0x1F; // 0x1F == 31
pub async fn read_keyboard_fifo(
i2c: &mut I2c<'static, I2C1, Async>,
channel: &mut Sender<'static, NoopRawMutex, KeyEvent, 10>,
) {
pub async fn read_keyboard_fifo() -> Option<KeyEvent> {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let mut key_status = [0_u8; 1];
if i2c
@@ -25,9 +19,8 @@ pub async fn read_keyboard_fifo(
.await
.is_ok()
{
// TODO: use caps & num lock
let caps = key_status[0] & KEY_CAPSLOCK == KEY_CAPSLOCK;
let num = key_status[0] & KEY_NUMLOCK == KEY_NUMLOCK;
let _caps = key_status[0] & KEY_CAPSLOCK == KEY_CAPSLOCK;
let _num = key_status[0] & KEY_NUMLOCK == KEY_NUMLOCK;
let fifo_count = key_status[0] & KEY_COUNT_MASK;
if fifo_count >= 1 {
@@ -38,78 +31,98 @@ pub async fn read_keyboard_fifo(
.await
.is_ok()
{
if let Ok(state) = KeyState::try_from(event[0]) {
if let Ok(key) = KeyCode::try_from(event[1]) {
let _ = channel.try_send(KeyEvent { key, state });
}
}
return Some(KeyEvent {
state: KeyState::from(event[0]),
key: KeyCode::from(event[1]),
mods: Modifiers::NONE,
});
}
}
}
None
}
const REG_ID_DEB: u8 = 0x06;
const REG_ID_FRQ: u8 = 0x07;
pub async fn configure_keyboard(debounce: u8, poll_freq: u8) {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let _ = i2c
.write_read_async(super::MCU_ADDR, [REG_ID_DEB], &mut [debounce])
.await;
let _ = i2c
.write_read_async(super::MCU_ADDR, [REG_ID_FRQ], &mut [poll_freq])
.await;
}
bitflags::bitflags! {
#[derive(Default, Debug, PartialEq, Eq, Clone, Copy)]
pub struct Modifiers: u8 {
const NONE = 0;
const CTRL = 1;
const ALT = 2;
const LSHIFT = 4;
const RSHIFT = 8;
const SYM = 16;
}
}
#[derive(Debug)]
pub struct KeyEvent {
pub key: KeyCode,
pub state: KeyState,
pub mods: Modifiers,
}
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum KeyState {
Idle = 0,
Pressed,
Hold,
Released,
Pressed = 1,
Hold = 2,
Released = 3,
}
impl TryFrom<u8> for KeyState {
type Error = ();
fn try_from(value: u8) -> Result<Self, Self::Error> {
impl From<u8> for KeyState {
fn from(value: u8) -> Self {
match value {
0 => Ok(KeyState::Idle),
1 => Ok(KeyState::Pressed),
2 => Ok(KeyState::Hold),
3 => Ok(KeyState::Released),
_ => Err(()),
1 => KeyState::Pressed,
2 => KeyState::Hold,
3 => KeyState::Released,
0 | _ => KeyState::Idle,
}
}
}
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
pub enum KeyCode {
// Joystick
JoyUp = 0x01,
JoyDown = 0x02,
JoyLeft = 0x03,
JoyRight = 0x04,
JoyCenter = 0x05,
// Buttons
BtnLeft1 = 0x06,
BtnRight1 = 0x07,
BtnLeft2 = 0x11,
BtnRight2 = 0x12,
// Basic Keys
Backspace = 0x08,
Tab = 0x09,
Enter = 0x0A,
// Modifiers
ModAlt = 0xA1,
ModShiftLeft = 0xA2,
ModShiftRight = 0xA3,
ModSym = 0xA4,
ModCtrl = 0xA5,
// Navigation
Esc = 0xB1,
Left = 0xB4,
Up = 0xB5,
Down = 0xB6,
Right = 0xB7,
// Specials
Break = 0xD0,
Insert = 0xD1,
Home = 0xD2,
@@ -117,11 +130,7 @@ pub enum KeyCode {
End = 0xD5,
PageUp = 0xD6,
PageDown = 0xD7,
// Locks
CapsLock = 0xC1,
// Function keys
F1 = 0x81,
F2 = 0x82,
F3 = 0x83,
@@ -132,55 +141,57 @@ pub enum KeyCode {
F8 = 0x88,
F9 = 0x89,
F10 = 0x90,
Char(char),
Unknown(u8),
}
impl TryFrom<u8> for KeyCode {
type Error = ();
fn try_from(value: u8) -> Result<Self, Self::Error> {
use KeyCode::*;
impl From<u8> for KeyCode {
fn from(value: u8) -> Self {
match value {
0x01 => Ok(JoyUp),
0x02 => Ok(JoyDown),
0x03 => Ok(JoyLeft),
0x04 => Ok(JoyRight),
0x05 => Ok(JoyCenter),
0x06 => Ok(BtnLeft1),
0x07 => Ok(BtnRight1),
0x08 => Ok(Backspace),
0x09 => Ok(Tab),
0x0A => Ok(Enter),
0x11 => Ok(BtnLeft2),
0x12 => Ok(BtnRight2),
0xA1 => Ok(ModAlt),
0xA2 => Ok(ModShiftLeft),
0xA3 => Ok(ModShiftRight),
0xA4 => Ok(ModSym),
0xA5 => Ok(ModCtrl),
0xB1 => Ok(Esc),
0xB4 => Ok(Left),
0xB5 => Ok(Up),
0xB6 => Ok(Down),
0xB7 => Ok(Right),
0xC1 => Ok(CapsLock),
0xD0 => Ok(Break),
0xD1 => Ok(Insert),
0xD2 => Ok(Home),
0xD4 => Ok(Del),
0xD5 => Ok(End),
0xD6 => Ok(PageUp),
0xD7 => Ok(PageDown),
0x81 => Ok(F1),
0x82 => Ok(F2),
0x83 => Ok(F3),
0x84 => Ok(F4),
0x85 => Ok(F5),
0x86 => Ok(F6),
0x87 => Ok(F7),
0x88 => Ok(F8),
0x89 => Ok(F9),
0x90 => Ok(F10),
_ => Err(()),
0x01 => Self::JoyUp,
0x02 => Self::JoyDown,
0x03 => Self::JoyLeft,
0x04 => Self::JoyRight,
0x05 => Self::JoyCenter,
0x06 => Self::BtnLeft1,
0x07 => Self::BtnRight1,
0x08 => Self::Backspace,
0x09 => Self::Tab,
0x0A => Self::Enter,
0x11 => Self::BtnLeft2,
0x12 => Self::BtnRight2,
0xA1 => Self::ModAlt,
0xA2 => Self::ModShiftLeft,
0xA3 => Self::ModShiftRight,
0xA4 => Self::ModSym,
0xA5 => Self::ModCtrl,
0xB1 => Self::Esc,
0xB4 => Self::Left,
0xB5 => Self::Up,
0xB6 => Self::Down,
0xB7 => Self::Right,
0xC1 => Self::CapsLock,
0xD0 => Self::Break,
0xD1 => Self::Insert,
0xD2 => Self::Home,
0xD4 => Self::Del,
0xD5 => Self::End,
0xD6 => Self::PageUp,
0xD7 => Self::PageDown,
0x81 => Self::F1,
0x82 => Self::F2,
0x83 => Self::F3,
0x84 => Self::F4,
0x85 => Self::F5,
0x86 => Self::F6,
0x87 => Self::F7,
0x88 => Self::F8,
0x89 => Self::F9,
0x90 => Self::F10,
_ => match char::from_u32(value as u32) {
Some(c) => Self::Char(c),
None => Self::Unknown(value),
},
}
}
}

View File

@@ -1,72 +1,98 @@
//! handles all the peripherals exposed by mcu through i2c (keyboard & battery registers)
//!
use embassy_futures::join::join;
use embassy_rp::{
i2c::{Async, I2c},
peripherals::I2C1,
};
use embassy_sync::{blocking_mutex::raw::NoopRawMutex, channel::Sender, mutex::Mutex};
use embassy_time::{Duration, Timer};
#[cfg(feature = "defmt")]
use defmt::info;
use embassy_sync::{blocking_mutex::raw::NoopRawMutex, lazy_lock::LazyLock, mutex::Mutex};
use embassy_time::Timer;
pub mod keyboard;
use keyboard::{KeyCode, KeyEvent, KeyState};
mod battery;
pub use battery::BATTERY_PCT;
use battery::read_battery;
use crate::peripherals::keyboard::read_keyboard_fifo;
use crate::peripherals::keyboard::{configure_keyboard, read_keyboard_fifo};
const MCU_ADDR: u8 = 0x1F;
const REG_ID_VER: u8 = 0x01;
const REG_ID_CFG: u8 = 0x02;
const REG_ID_INT: u8 = 0x03;
const REG_ID_KEY: u8 = 0x04;
const REG_ID_BKL: u8 = 0x05;
const REG_ID_DEB: u8 = 0x06;
const REG_ID_FRQ: u8 = 0x07;
const REG_ID_RST: u8 = 0x08;
const REG_ID_FIF: u8 = 0x09;
const REG_ID_BK2: u8 = 0x0A;
const REG_ID_C64_MTX: u8 = 0x0c;
const REG_ID_C64_JS: u8 = 0x0d;
type I2CBUS = I2c<'static, I2C1, Async>;
pub static PERIPHERAL_BUS: LazyLock<Mutex<NoopRawMutex, Option<I2CBUS>>> =
LazyLock::new(|| Mutex::new(None));
#[embassy_executor::task]
pub async fn peripherals_task(
mut i2c: I2c<'static, I2C1, Async>,
mut keyboard_channel: Sender<'static, NoopRawMutex, KeyEvent, 10>,
) {
const REG_ID_VER: u8 = 0x01;
const REG_ID_RST: u8 = 0x08;
const REG_ID_INT: u8 = 0x03;
pub async fn conf_peripherals(i2c: I2CBUS) {
Timer::after(embassy_time::Duration::from_millis(100)).await;
#[cfg(feature = "defmt")]
{
let mut ver = [0_u8; 1];
if let Ok(firm_ver) = i2c.write_read_async(MCU_ADDR, [REG_ID_VER], &mut ver).await {
info!("stm32 firmware version: v{}", ver[0]);
}
}
PERIPHERAL_BUS.get().lock().await.replace(i2c);
let i2c: Mutex<NoopRawMutex, I2c<'static, I2C1, Async>> = Mutex::new(i2c);
configure_keyboard(200, 100).await;
join(
async {
loop {
Timer::after(Duration::from_secs(10)).await;
let mut guard = i2c.lock().await;
read_battery(&mut guard).await;
}
},
async {
loop {
Timer::after(Duration::from_millis(50)).await;
let mut guard = i2c.lock().await;
read_keyboard_fifo(&mut guard, &mut keyboard_channel).await;
}
},
)
.await;
// empty keys
while read_keyboard_fifo().await.is_some() {}
// set_lcd_backlight(255).await;
set_key_backlight(0).await;
}
/// return major & minor mcu version
async fn get_version() -> (u8, u8) {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let mut ver = [0_u8; 1];
let _ = i2c.write_read_async(MCU_ADDR, [REG_ID_VER], &mut ver).await;
(ver[0] >> 4, ver[0] & 0x0F)
}
const REG_ID_BKL: u8 = 0x05;
pub async fn set_lcd_backlight(brightness: u8) {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let _ = i2c
.write_read_async(MCU_ADDR, [REG_ID_BKL], &mut [brightness])
.await;
}
pub async fn get_lcd_backlight() -> u8 {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let mut buf = [0_u8; 2];
let _ = i2c.write_read_async(MCU_ADDR, [REG_ID_BKL], &mut buf).await;
buf[1]
}
const REG_ID_BK2: u8 = 0x0A;
pub async fn set_key_backlight(brightness: u8) {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let _ = i2c
.write_read_async(MCU_ADDR, [REG_ID_BK2], &mut [brightness])
.await;
}
pub async fn get_key_backlight() -> u8 {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let mut buf = [0_u8; 2];
let _ = i2c.write_read_async(MCU_ADDR, [REG_ID_BK2], &mut buf).await;
buf[1]
}
const REG_ID_BAT: u8 = 0x0b;
pub async fn get_battery() -> u8 {
let mut i2c = PERIPHERAL_BUS.get().lock().await;
let i2c = i2c.as_mut().unwrap();
let mut buf = [0_u8; 2];
let _ = i2c.write_read_async(MCU_ADDR, [REG_ID_BAT], &mut buf).await;
buf[1]
}