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#![no_std]
#![allow(clippy::type_complexity)]
pub mod instruction;
use crate::instruction::Instruction;
use display_interface::DataFormat;
use display_interface::DisplayError;
use display_interface::WriteOnlyDataCommand;
use embedded_hal::blocking::delay::DelayUs;
use embedded_hal::digital::v2::OutputPin;
pub mod models;
use models::Model;
mod graphics;
mod no_pin;
pub use no_pin::*;
#[cfg(feature = "batch")]
mod batch;
pub struct Display<DI, RST, MODEL>
where
DI: WriteOnlyDataCommand,
RST: OutputPin,
MODEL: Model,
{
di: DI,
rst: Option<RST>,
model: MODEL,
orientation: Orientation,
madctl: u8,
}
#[derive(Copy, Clone)]
pub enum Orientation {
Portrait(bool),
Landscape(bool),
PortraitInverted(bool),
LandscapeInverted(bool),
}
impl Default for Orientation {
fn default() -> Self {
Self::Portrait(false)
}
}
impl Orientation {
pub fn value_u8(&self) -> u8 {
match self {
Orientation::Portrait(false) => 0b0000_0000,
Orientation::Portrait(true) => 0b0100_0000,
Orientation::PortraitInverted(false) => 0b1100_0000,
Orientation::PortraitInverted(true) => 0b1000_0000,
Orientation::Landscape(false) => 0b0010_0000,
Orientation::Landscape(true) => 0b0110_0000,
Orientation::LandscapeInverted(false) => 0b1110_0000,
Orientation::LandscapeInverted(true) => 0b1010_0000,
}
}
}
#[derive(Copy, Clone)]
pub enum TearingEffect {
Off,
Vertical,
HorizontalAndVertical,
}
#[derive(Copy, Clone)]
pub enum ColorOrder {
Rgb,
Bgr,
}
impl Default for ColorOrder {
fn default() -> Self {
Self::Rgb
}
}
#[derive(Copy, Clone, Default)]
pub struct DisplayOptions {
pub orientation: Orientation,
pub invert_vertical_refresh: bool,
pub color_order: ColorOrder,
pub invert_horizontal_refresh: bool,
}
impl DisplayOptions {
pub fn madctl(&self) -> u8 {
let mut value = self.orientation.value_u8();
if self.invert_vertical_refresh {
value |= 0b0001_0000;
}
match self.color_order {
ColorOrder::Rgb => {}
ColorOrder::Bgr => value |= 0b0000_1000,
}
if self.invert_horizontal_refresh {
value |= 0b0000_0100;
}
value
}
}
#[derive(Debug)]
pub enum Error<PE> {
DisplayError,
Pin(PE),
}
impl<PE> From<DisplayError> for Error<PE> {
fn from(_: DisplayError) -> Self {
Error::DisplayError
}
}
impl<DI, RST, M> Display<DI, RST, M>
where
DI: WriteOnlyDataCommand,
RST: OutputPin,
M: Model,
{
pub fn with_model(di: DI, rst: Option<RST>, model: M) -> Self {
Self {
di,
rst,
model,
orientation: Orientation::default(),
madctl: 0,
}
}
pub fn init(
&mut self,
delay_source: &mut impl DelayUs<u32>,
options: DisplayOptions,
) -> Result<(), Error<RST::Error>> {
self.madctl = self
.model
.init(&mut self.di, &mut self.rst, delay_source, options)?;
self.orientation = options.orientation;
Ok(())
}
pub fn orientation(&self) -> Orientation {
self.orientation
}
pub fn set_orientation(&mut self, orientation: Orientation) -> Result<(), Error<RST::Error>> {
let value = (self.madctl & 0b0001_1111) | orientation.value_u8();
self.write_command(Instruction::MADCTL)?;
self.write_data(&[value])?;
self.orientation = orientation;
self.madctl = value;
Ok(())
}
pub fn set_pixel(
&mut self,
x: u16,
y: u16,
color: M::ColorFormat,
) -> Result<(), Error<RST::Error>> {
self.set_address_window(x, y, x, y)?;
self.model
.write_pixels(&mut self.di, core::iter::once(color))?;
Ok(())
}
pub fn set_pixels<T>(
&mut self,
sx: u16,
sy: u16,
ex: u16,
ey: u16,
colors: T,
) -> Result<(), Error<RST::Error>>
where
T: IntoIterator<Item = M::ColorFormat>,
{
self.set_address_window(sx, sy, ex, ey)?;
self.model.write_pixels(&mut self.di, colors)?;
Ok(())
}
pub fn set_scroll_region(
&mut self,
tfa: u16,
vsa: u16,
bfa: u16,
) -> Result<(), Error<RST::Error>> {
self.write_command(Instruction::VSCRDER)?;
self.write_data(&tfa.to_be_bytes())?;
self.write_data(&vsa.to_be_bytes())?;
self.write_data(&bfa.to_be_bytes())?;
Ok(())
}
pub fn set_scroll_offset(&mut self, offset: u16) -> Result<(), Error<RST::Error>> {
self.write_command(Instruction::VSCAD)?;
self.write_data(&offset.to_be_bytes())
}
pub fn release(self) -> (DI, Option<RST>, M) {
(self.di, self.rst, self.model)
}
fn write_command(&mut self, command: Instruction) -> Result<(), Error<RST::Error>> {
self.di
.send_commands(DataFormat::U8(&[command as u8]))
.map_err(|_| Error::DisplayError)?;
Ok(())
}
fn write_data(&mut self, data: &[u8]) -> Result<(), Error<RST::Error>> {
self.di
.send_data(DataFormat::U8(data))
.map_err(|_| Error::DisplayError)
}
fn set_address_window(
&mut self,
sx: u16,
sy: u16,
ex: u16,
ey: u16,
) -> Result<(), Error<RST::Error>> {
self.write_command(Instruction::CASET)?;
self.write_data(&sx.to_be_bytes())?;
self.write_data(&ex.to_be_bytes())?;
self.write_command(Instruction::RASET)?;
self.write_data(&sy.to_be_bytes())?;
self.write_data(&ey.to_be_bytes())
}
pub fn set_tearing_effect(
&mut self,
tearing_effect: TearingEffect,
) -> Result<(), Error<RST::Error>> {
match tearing_effect {
TearingEffect::Off => self.write_command(Instruction::TEOFF),
TearingEffect::Vertical => {
self.write_command(Instruction::TEON)?;
self.write_data(&[0])
}
TearingEffect::HorizontalAndVertical => {
self.write_command(Instruction::TEON)?;
self.write_data(&[1])
}
}
}
}