mipidsi 0.10.0

MIPI Display Command Set compatible generic driver
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

use embedded_graphics_core::pixelcolor::Rgb565;
use embedded_hal::delay::DelayNs;
use mipidsi::{
    dcs::{
        BitsPerPixel, EnterNormalMode, ExitSleepMode, InterfaceExt, PixelFormat, SetAddressMode,
        SetDisplayOn, SetInvertMode, SetPixelFormat,
    },
    interface::Interface,
    models::{Model, ModelInitError},
    options::ModelOptions,
};

/// Copy of the ST7789 driver to check if it can also be implemented in another
/// crate.
pub struct ExternalST7789;

impl Model for ExternalST7789 {
    type ColorFormat = Rgb565;
    const FRAMEBUFFER_SIZE: (u16, u16) = (240, 320);

    fn init<DELAY, DI>(
        &mut self,
        di: &mut DI,
        delay: &mut DELAY,
        options: &ModelOptions,
    ) -> Result<SetAddressMode, ModelInitError<DI::Error>>
    where
        DELAY: DelayNs,
        DI: Interface,
    {
        let madctl = SetAddressMode::from(options);

        delay.delay_us(150_000);

        di.write_command(ExitSleepMode)?;
        delay.delay_us(10_000);

        // set hw scroll area based on framebuffer size
        di.write_command(madctl)?;

        di.write_command(SetInvertMode::new(options.invert_colors))?;

        let pf = PixelFormat::with_all(BitsPerPixel::from_rgb_color::<Self::ColorFormat>());
        di.write_command(SetPixelFormat::new(pf))?;
        delay.delay_us(10_000);
        di.write_command(EnterNormalMode)?;
        delay.delay_us(10_000);
        di.write_command(SetDisplayOn)?;

        // DISPON requires some time otherwise we risk SPI data issues
        delay.delay_us(120_000);

        Ok(madctl)
    }
}