Christoph Groß
5 years ago
7 changed files with 388 additions and 365 deletions
@ -0,0 +1,17 @@
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pub(crate) const WIDTH: usize = 128; |
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pub(crate) const HEIGHT: usize = 296; |
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// Original Waveforms from Waveshare
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pub(crate) const LUT_FULL_UPDATE: [u8; 30] =[ |
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0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22,
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0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88,
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0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51,
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0x35, 0x51, 0x51, 0x19, 0x01, 0x00
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]; |
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pub(crate) const LUT_PARTIAL_UPDATE: [u8; 30] =[ |
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0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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]; |
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@ -1,102 +0,0 @@
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pub(crate) const LUT_VCOM0: [u8; 44] = [ |
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0x00, 0x17, 0x00, 0x00, 0x00, 0x02,
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0x00, 0x17, 0x17, 0x00, 0x00, 0x02,
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0x00, 0x0A, 0x01, 0x00, 0x00, 0x01,
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0x00, 0x0E, 0x0E, 0x00, 0x00, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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]; |
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pub(crate) const LUT_VCOM0_QUICK: [u8; 44] = [ |
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0x00, 0x0E, 0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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]; |
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pub(crate) const LUT_WW: [u8; 42] =[ |
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0x40, 0x17, 0x00, 0x00, 0x00, 0x02, |
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02, |
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0x40, 0x0A, 0x01, 0x00, 0x00, 0x01, |
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0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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]; |
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pub(crate) const LUT_WW_QUICK: [u8; 42] =[ |
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0xA0, 0x0E, 0x00, 0x00, 0x00, 0x01, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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]; |
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pub(crate) const LUT_BW: [u8; 42] =[ |
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0x40, 0x17, 0x00, 0x00, 0x00, 0x02, |
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02, |
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0x40, 0x0A, 0x01, 0x00, 0x00, 0x01, |
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0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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pub(crate) const LUT_BW_QUICK: [u8; 42] =[ |
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0xA0, 0x0E, 0x00, 0x00, 0x00, 0x01, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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pub(crate) const LUT_BB: [u8; 42] =[ |
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0x80, 0x17, 0x00, 0x00, 0x00, 0x02, |
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02, |
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0x80, 0x0A, 0x01, 0x00, 0x00, 0x01, |
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0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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pub(crate) const LUT_BB_QUICK: [u8; 42] =[ |
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0x50, 0x0E, 0x00, 0x00, 0x00, 0x01, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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pub(crate) const LUT_WB: [u8; 42] =[ |
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0x80, 0x17, 0x00, 0x00, 0x00, 0x02, |
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0x90, 0x17, 0x17, 0x00, 0x00, 0x02, |
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0x80, 0x0A, 0x01, 0x00, 0x00, 0x01, |
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0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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pub(crate) const LUT_WB_QUICK: [u8; 42] =[ |
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0x50, 0x0E, 0x00, 0x00, 0x00, 0x01, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]; |
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@ -0,0 +1,142 @@
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use hal::{ |
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blocking::{ |
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spi::Write, |
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delay::* |
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}, |
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spi::{Mode, Phase, Polarity}, |
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digital::* |
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}; |
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use interface::Command; |
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/// EPD4in2 driver
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///
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pub struct DataInterface<SPI, CS, BUSY, DC, RST, D> { |
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/// SPI
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spi: SPI, |
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/// CS for SPI
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cs: CS, |
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/// Low for busy, Wait until display is ready!
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busy: BUSY, |
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/// Data/Command Control Pin (High for data, Low for command)
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dc: DC, |
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/// Pin for Reseting
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rst: RST, |
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/// The concrete Delay implementation
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delay: D, |
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} |
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impl<SPI, CS, BUSY, DC, RST, D, E> DataInterface<SPI, CS, BUSY, DC, RST, D> |
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where
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SPI: Write<u8, Error = E>, |
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CS: OutputPin, |
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BUSY: InputPin, |
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DC: OutputPin, |
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RST: OutputPin, |
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D: DelayUs<u16> + DelayMs<u16>, |
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{ |
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pub fn new(spi: SPI, cs: CS, busy: BUSY, dc: DC, rst: RST, delay: D) -> Self { |
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DataInterface {spi, cs, busy, dc, rst, delay } |
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} |
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/// Basic function for sending [Commands](Command).
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///
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/// Enables direct interaction with the device with the help of [EPD4in2::send_data()](EPD4in2::send_data())
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/// Should rarely be needed!
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/// //TODO: make public?
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fn send_command<T: Command>(&mut self, command: T) -> Result<(), E> { |
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// low for commands
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self.dc.set_low();
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// Transfer the command over spi
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self.with_cs(|epd| { |
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epd.spi.write(&[command.address()]) |
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}) |
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} |
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/// Basic function for sending a single u8 of data over spi
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///
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/// Enables direct interaction with the device with the help of [EPD4in2::send_command()](EPD4in2::send_command())
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///
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/// Should rarely be needed!
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/// //TODO: make public?
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fn send_data(&mut self, val: u8) -> Result<(), E> { |
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// high for data
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self.dc.set_high(); |
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// Transfer data (u8) over spi
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self.with_cs(|epd| { |
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epd.spi.write(&[val]) |
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}) |
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} |
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/// Basic function for sending an array of u8-values of data over spi
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///
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/// Enables direct interaction with the device with the help of [EPD4in2::send_command()](EPD4in2::send_command())
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///
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/// Should rarely be needed!
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/// //TODO: make public?
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fn send_multiple_data(&mut self, data: &[u8]) -> Result<(), E> { |
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// high for data
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self.dc.set_high(); |
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// Transfer data (u8-array) over spi
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self.with_cs(|epd| { |
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epd.spi.write(data) |
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}) |
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} |
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// spi write helper/abstraction function
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fn with_cs<F>(&mut self, f: F) -> Result<(), E> |
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where
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F: FnOnce(&mut Self) -> Result<(), E>, |
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{ |
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// activate spi with cs low
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self.cs.set_low(); |
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// transfer spi data
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let result = f(self); |
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// deativate spi with cs high
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self.cs.set_high(); |
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// return result
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result |
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} |
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/// Waits until device isn't busy anymore (busy == HIGH)
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///
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/// This is normally handled by the more complicated commands themselves,
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/// but in the case you send data and commands directly you might need to check
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/// if the device is still busy
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pub fn wait_until_idle(&mut self) { |
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//low: busy, high: idle
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while self.busy.is_low() { |
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//TODO: shorten the time? it was 100 in the beginning
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self.delay_ms(10); |
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} |
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} |
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/// Abstraction of setting the delay for simpler calls
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pub fn delay_ms(&mut self, delay: u16) { |
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self.delay.delay_ms(delay); |
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} |
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/// Resets the device.
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///
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/// Often used to awake the module from deep sleep. See [EPD4in2::sleep()](EPD4in2::sleep())
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///
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/// TODO: Takes at least 400ms of delay alone, can it be shortened?
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pub fn reset(&mut self) { |
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self.rst.set_low(); |
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//TODO: why 200ms? (besides being in the waveshare code)
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self.delay_ms(200); |
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self.rst.set_high(); |
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//TODO: same as 3 lines above
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self.delay_ms(200); |
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} |
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} |
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@ -0,0 +1,105 @@
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use hal::{ |
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blocking::{ |
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spi::Write, |
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delay::* |
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}, |
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spi::{Mode, Phase, Polarity}, |
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digital::* |
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}; |
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pub mod data_interface; |
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//TODO: test spi mode
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/// SPI mode -
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/// For more infos see [Requirements: SPI](index.html#spi)
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pub const SPI_MODE: Mode = Mode { |
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phase: Phase::CaptureOnFirstTransition, |
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polarity: Polarity::IdleLow, |
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}; |
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use core::marker::Sized; |
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pub(crate) trait Command { |
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fn address(&self) -> u8; |
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} |
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pub trait WaveshareInterface<SPI, CS, BUSY, DC, RST, D, E> |
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where
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SPI: Write<u8, Error = E>, |
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CS: OutputPin, |
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BUSY: InputPin, |
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DC: OutputPin, |
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RST: OutputPin, |
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D: DelayUs<u16> + DelayMs<u16>, |
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{ |
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/// Get the width of the display
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fn get_width(&self) -> u32; |
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fn get_height(&self) -> u32; |
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fn new( |
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spi: SPI,
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cs: CS,
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busy: BUSY,
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dc: DC,
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rst: RST,
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delay: D |
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) -> Result<Self, E> |
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where Self: Sized; |
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fn init(&mut self) -> Result<(), E>; |
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fn sleep(&mut self) -> Result<(), E>; |
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fn reset(&mut self); |
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fn wait_until_idle(&mut self); |
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fn delay_ms(&mut self, delay: u32); |
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/* |
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fn clear_frame(&mut self, reset_color: Option<Color>) -> Result<(), E> |
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fn display_frame_quick(&mut self) -> Result<(), E> |
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fn display_frame(&mut self) -> Result<(), E> |
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pub fn display_and_transfer_frame( |
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&mut self,
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buffer: &[u8],
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color: Option<u8> |
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) -> Result<(), E> |
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pub fn set_partial_window( |
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&mut self,
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buffer: &[u8],
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x: u16,
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y: u16,
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w: u16,
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l: u16,
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is_dtm1: bool |
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) -> Result<(), E> |
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*/ |
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} |
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pub trait TestInterface |
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{ |
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fn get_width(&self) -> u32; |
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fn get_height(&self) -> u32; |
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} |
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struct testStruct { |
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width: u32, |
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height: u32, |
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} |
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impl TestInterface for testStruct { |
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fn get_width(&self) -> u32 { |
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self.width |
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} |
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fn get_height(&self) -> u32 { |
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self.height |
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} |
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} |
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