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//! SPI Commands for the Waveshare 2.7" B 3 color E-Ink Display
use crate::traits;
/// EPD2IN7B commands
///
/// More information can be found in the [specification](https://www.waveshare.com/w/upload/d/d8/2.7inch-e-paper-b-specification.pdf)
#[allow(dead_code)]
#[derive(Copy, Clone)]
pub(crate) enum Command {
/// Set Resolution, LUT selection, BWR pixels, gate scan direction, source shift direction, booster switch, soft reset
PanelSetting = 0x00,
/// Selecting internal and external power
PowerSetting = 0x01,
PowerOff = 0x02,
/// Setting Power OFF sequence
PowerOffSequenceSetting = 0x03,
PowerOn = 0x04,
/// This command enables the internal bandgap, which will be cleared by the next POF.
PowerOnMeasure = 0x05,
/// Starting data transmission
///
/// ```ignore
/// self.send_data(&[0x07, 0x07, 0x17])?;
/// ```
BoosterSoftStart = 0x06,
/// After this command is transmitted, the chip would enter the deep-sleep mode to save power.
///
/// The deep sleep mode would return to standby by hardware reset.
///
/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
DeepSleep = 0x07,
/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
///
/// - In B/W mode, this command writes “OLD” data to SRAM.
/// - In B/W/Red mode, this command writes “B/W” data to SRAM.
DataStartTransmission1 = 0x10,
/// Stopping data transmission
DataStop = 0x11,
/// After this command is issued, driver will refresh display (data/VCOM) according to SRAM data and LUT.
DisplayRefresh = 0x12,
/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
/// - In B/W mode, this command writes “NEW” data to SRAM.
/// - In B/W/Red mode, this command writes “RED” data to SRAM.
DataStartTransmission2 = 0x13,
/// The command define as follows: The register is indicates that user start to transmit data, then write to SRAM. While data transmission
/// complete, user must send command DSP (Data transmission Stop). Then chip will start to send data/VCOM for panel.
///
/// - In B/W mode, this command writes “OLD” data to SRAM.
/// - In B/W/Red mode, this command writes “B/W” data to SRAM.
PartialDataStartTransmission1 = 0x14,
/// The command define as follows: The register is indicates that user start to transmit data, then write to SRAM. While data transmission
/// complete, user must send command DSP (Data transmission Stop). Then chip will start to send data/VCOM for panel.
///
/// - In B/W mode, this command writes “NEW” data to SRAM.
/// - In B/W/Red mode, this command writes “RED” data to SRAM.
PartialDataStartTransmission2 = 0x15,
/// While user sent this command, driver will refresh display (data/VCOM) base on SRAM data and LUT.
///
/// Only the area (X,Y, W, L) would update, the others pixel output would follow VCOM LUT
PartialDisplayRefresh = 0x16,
/// This command builds the Look-up table for VCOM
LutForVcom = 0x20,
LutWhiteToWhite = 0x21,
LutBlackToWhite = 0x22,
LutWhiteToBlack = 0x23,
LutBlackToBlack = 0x24,
/// The command controls the PLL clock frequency.
PllControl = 0x30,
/// This command reads the temperature sensed by the temperature sensor.
///
/// Doesn't work! Waveshare doesn't connect the read pin
TemperatureSensor = 0x40,
/// This command selects Internal or External temperature sensor.
TemperatureSensorCalibration = 0x41,
/// Write External Temperature Sensor
TemperatureSensorWrite = 0x42,
/// Read External Temperature Sensor
///
/// Doesn't work! Waveshare doesn't connect the read pin
TemperatureSensorRead = 0x43,
/// This command indicates the interval of Vcom and data output. When setting the vertical back porch, the total blanking will be kept (20 Hsync)
VcomAndDataIntervalSetting = 0x50,
/// This command indicates the input power condition. Host can read this flag to learn the battery condition.
LowPowerDetection = 0x51,
/// This command defines non-overlap period of Gate and Source.
TconSetting = 0x60,
/// This command defines alternative resolution and this setting is of higher priority than the RES\[1:0\] in R00H (PSR).
ResolutionSetting = 0x61,
SourceAndGateSetting = 0x62,
/// This command reads the IC status.
///
/// Doesn't work! Waveshare doesn't connect the read pin
GetStatus = 0x71,
/// Automatically measure VCOM. This command reads the IC status
AutoMeasurementVcom = 0x80,
/// This command gets the VCOM value
///
/// Doesn't work! Waveshare doesn't connect the read pin
ReadVcomValue = 0x81,
/// This command sets VCOM_DC value.
VcmDcSetting = 0x82,
/// After this command is issued, the chip would enter the program mode.
///
/// After the programming procedure completed, a hardware reset is necessary for leaving program mode.
///
/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
ProgramMode = 0xA0,
/// After this command is issued, the chip would enter the program mode.
ActiveProgramming = 0xA1,
/// The command is used for reading the content of OTP for checking the data of programming.
///
/// The value of (n) is depending on the amount of programmed data, tha max address = 0xFFF.
ReadOtp = 0xA2,
/// Not shown in commands table, but used in init sequence
PowerOptimization = 0xf8,
}
impl traits::Command for Command {
/// Returns the address of the command
fn address(self) -> u8 {
self as u8
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::traits::Command as CommandTrait;
#[test]
fn command_addr() {
assert_eq!(Command::PanelSetting.address(), 0x00);
assert_eq!(Command::DisplayRefresh.address(), 0x12);
}
}