commit a398dc4a7f75c7cec084fbcdad2e62cc51037c1b
Author: Felix Wittwer <dev@felixwittwer.de>
Date:   Tue Aug 2 21:50:40 2022 +0200

    Initial commit

diff --git a/.gitignore b/.gitignore
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index 0000000..6d2cde5
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..e4ef0dd
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,32 @@
+[package]
+name = "inky-ticker"
+version = "0.1.0"
+edition = "2021"
+
+authors = ["Felix Wittwer <dev@felixwittwer.de>"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+embedded-graphics = "0.7.1"
+profont = "0.5.0"
+#ssd1675 = { git = "https://github.com/Feliix42/ssd1675" }
+ssd1675 = { path = "../ssd1675" }
+
+linux-embedded-hal = { version = "0.3.2", optional = true }
+embedded-graphics-simulator = { version = "0.3.0", optional = true }
+
+
+[features]
+inky = ["linux-embedded-hal"]
+simulator = ["embedded-graphics-simulator"]
+
+[[bin]]
+name = "inky"
+path = "src/bin/inky.rs"
+required-features = ["inky"]
+
+[[bin]]
+name = "simulator"
+path = "src/bin/simulator.rs"
+required-features = ["simulator"]
diff --git a/Cross.toml b/Cross.toml
new file mode 100644
index 0000000..a7772be
--- /dev/null
+++ b/Cross.toml
@@ -0,0 +1,2 @@
+[target.arm-unknown-linux-gnueabihf]
+image = "rustcross/arm-unknown-linux-gnueabihf"
diff --git a/src/bin/inky.rs b/src/bin/inky.rs
new file mode 100644
index 0000000..2ecacf6
--- /dev/null
+++ b/src/bin/inky.rs
@@ -0,0 +1,111 @@
+use embedded_graphics::{mono_font::MonoTextStyle, prelude::*, text::Text};
+use linux_embedded_hal::{
+    spidev::{SpiModeFlags, SpidevOptions},
+    sysfs_gpio::Direction,
+    Delay, Pin, Spidev,
+};
+use profont::{PROFONT_12_POINT, PROFONT_14_POINT, PROFONT_24_POINT, PROFONT_9_POINT};
+use ssd1675::{Builder, Color, Dimensions, Display, GraphicDisplay, Rotation};
+use std::thread::sleep;
+use std::time::Duration;
+
+// Activate SPI, GPIO in raspi-config needs to be run with sudo because of some sysfs_gpio
+// permission problems and follow-up timing problems
+// see https://github.com/rust-embedded/rust-sysfs-gpio/issues/5 and follow-up issues
+
+const ROWS: u16 = 212;
+const COLS: u8 = 104;
+
+#[rustfmt::skip]
+const LUT: [u8; 70] = [
+    // Phase 0     Phase 1     Phase 2     Phase 3     Phase 4     Phase 5     Phase 6
+    // A B C D     A B C D     A B C D     A B C D     A B C D     A B C D     A B C D
+    0b01001000, 0b10100000, 0b00010000, 0b00010000, 0b00010011, 0b00000000, 0b00000000,  // LUT0 - Black
+    0b01001000, 0b10100000, 0b10000000, 0b00000000, 0b00000011, 0b00000000, 0b00000000,  // LUTT1 - White
+    0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000,  // IGNORE
+    0b01001000, 0b10100101, 0b00000000, 0b10111011, 0b00000000, 0b00000000, 0b00000000,  // LUT3 - Red
+    0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000,  // LUT4 - VCOM
+
+    // Duration            |  Repeat
+    // A   B     C     D   |
+    64,   12,   32,   12,    6,   // 0 Flash
+    16,   8,    4,    4,     6,   // 1 clear
+    4,    8,    8,    16,    16,  // 2 bring in the black
+    2,    2,    2,    64,    32,  // 3 time for red
+    2,    2,    2,    2,     2,   // 4 final black sharpen phase
+    0,    0,    0,    0,     0,   // 5
+    0,    0,    0,    0,     0    // 6
+];
+
+fn main() -> Result<(), std::io::Error> {
+    // Configure SPI
+    let mut spi = Spidev::open("/dev/spidev0.0").expect("SPI device");
+    let options = SpidevOptions::new()
+        .bits_per_word(8)
+        .max_speed_hz(4_000_000)
+        .mode(SpiModeFlags::SPI_MODE_0)
+        .build();
+    spi.configure(&options).expect("SPI configuration");
+
+    // https://pinout.xyz/pinout/inky_phat
+    // Configure Digital I/O Pins
+    let busy = Pin::new(17); // BCM17
+    busy.export().expect("busy export");
+    while !busy.is_exported() {}
+    busy.set_direction(Direction::In).expect("busy Direction");
+
+    let dc = Pin::new(22); // BCM22
+    dc.export().expect("dc export");
+    while !dc.is_exported() {}
+    dc.set_direction(Direction::Out).expect("dc Direction");
+    dc.set_value(1).expect("dc Value set to 1");
+
+    let reset = Pin::new(27); // BCM27
+    reset.export().expect("reset export");
+    while !reset.is_exported() {}
+    reset
+        .set_direction(Direction::Out)
+        .expect("reset Direction");
+    reset.set_value(1).expect("reset Value set to 1");
+    println!("Pins configured");
+
+    // Initialise display controller
+    let mut delay = Delay {};
+
+    let controller = ssd1675::Interface::new(spi, busy, dc, reset);
+
+    let mut black_buffer = [0u8; ROWS as usize * COLS as usize / 8];
+    let mut red_buffer = [0u8; ROWS as usize * COLS as usize / 8];
+    let config = Builder::new()
+        .dimensions(Dimensions {
+            rows: ROWS,
+            cols: COLS,
+        })
+        .rotation(Rotation::Rotate90)
+        .lut(&LUT)
+        .build()
+        .expect("invalid configuration");
+    let display = Display::new(controller, config);
+    let mut display = GraphicDisplay::new(display, &mut black_buffer, &mut red_buffer);
+
+    // Main loop. Displays CPU temperature, uname, and uptime every minute with a red Raspberry Pi
+    // header.
+    loop {
+        display.reset(&mut delay).expect("error resetting display");
+        println!("Reset and initialised");
+        let one_minute = Duration::from_secs(60);
+
+        display.clear(Color::White);
+        println!("Clear");
+
+        inky_ticker::populate(&mut display);
+
+        display.update(&mut delay).expect("error updating display");
+        println!("Update...");
+
+        println!("Finished - going to sleep");
+        display.deep_sleep()?;
+
+        sleep(one_minute);
+    }
+}
diff --git a/src/bin/simulator.rs b/src/bin/simulator.rs
new file mode 100644
index 0000000..86a4216
--- /dev/null
+++ b/src/bin/simulator.rs
@@ -0,0 +1,38 @@
+use ssd1675::Color;
+use embedded_graphics::{
+    pixelcolor::BinaryColor,
+    prelude::*,
+    primitives::{Circle, Line, Rectangle, PrimitiveStyle},
+    mono_font::{ascii::FONT_6X9, MonoTextStyle},
+    text::Text,
+};
+use embedded_graphics_simulator::{BinaryColorTheme, SimulatorDisplay, Window, OutputSettingsBuilder, OutputSettings};
+
+
+fn main() -> Result<(), core::convert::Infallible> {
+    println!("Initialize Display");
+    let mut display = SimulatorDisplay::<Color>::new(Size::new(212, 104));
+
+    let output_settings = OutputSettingsBuilder::new()
+        .theme(BinaryColorTheme::OledBlue)
+        .build();
+    println!("Creating Window");
+    let mut window = Window::new("Hello World", &OutputSettings::default());
+
+
+    //loop {
+        //println!("Populate display...");
+        //inky_ticker::populate(&mut display);
+
+        //println!("Updating window");
+        //window.update(&display);
+
+        //std::thread::sleep(std::time::Duration::from_secs(1));
+    //}
+    
+    inky_ticker::populate(&mut display);
+    window.show_static(&display);
+
+    Ok(())
+}
+
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..2054a96
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,95 @@
+use embedded_graphics::{
+    draw_target::DrawTarget, mono_font::MonoTextStyle, prelude::*, text::Text,
+};
+use profont::{PROFONT_12_POINT, PROFONT_14_POINT, PROFONT_24_POINT, PROFONT_9_POINT};
+use ssd1675::Color;
+use std::process::Command;
+use std::fmt::Debug;
+use std::{fs, io};
+
+pub fn populate<D>(display: &mut D)
+where
+    D: DrawTarget<Color = Color>,
+    D::Error: Debug
+{
+    Text::new(
+        "Raspberry Pi",
+        Point::new(1, 20),
+        MonoTextStyle::new(&PROFONT_24_POINT, Color::Red),
+    )
+    .draw(display)
+    .expect("error drawing text");
+
+    if let Ok(cpu_temp) = read_cpu_temp() {
+        Text::new(
+            "CPU Temp:",
+            Point::new(1, 40),
+            MonoTextStyle::new(&PROFONT_14_POINT, Color::Black),
+        )
+        .draw(display)
+        .expect("error drawing text");
+        Text::new(
+            &format!("{:.1}°C", cpu_temp),
+            Point::new(95, 40),
+            MonoTextStyle::new(&PROFONT_12_POINT, Color::Red),
+        )
+        .draw(display)
+        .expect("error drawing text");
+    }
+
+    if let Some(uptime) = read_uptime() {
+        Text::new(
+            uptime.trim(),
+            Point::new(1, 93),
+            MonoTextStyle::new(&PROFONT_9_POINT, Color::Black),
+        )
+        .draw(display)
+        .expect("error drawing text");
+    }
+
+    if let Some(uname) = read_uname() {
+        Text::new(
+            uname.trim(),
+            Point::new(1, 84),
+            MonoTextStyle::new(&PROFONT_9_POINT, Color::Black),
+        )
+        .draw(display)
+        .expect("error drawing text");
+    }
+}
+
+pub fn read_cpu_temp() -> Result<f64, io::Error> {
+    fs::read_to_string("/sys/class/thermal/thermal_zone0/temp")?
+        .trim()
+        .parse::<i32>()
+        .map(|temp| temp as f64 / 1000.)
+        .map_err(|err| io::Error::new(io::ErrorKind::Other, err))
+}
+
+pub fn read_uptime() -> Option<String> {
+    Command::new("uptime")
+        .arg("-p")
+        .output()
+        .ok()
+        .and_then(|output| {
+            if output.status.success() {
+                String::from_utf8(output.stdout).ok()
+            } else {
+                None
+            }
+        })
+}
+
+pub fn read_uname() -> Option<String> {
+    Command::new("uname")
+        .arg("-smr")
+        .output()
+        .ok()
+        .and_then(|output| {
+            if output.status.success() {
+                String::from_utf8(output.stdout).ok()
+            } else {
+                None
+            }
+        })
+}