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79 lines
1.8 KiB
Go
79 lines
1.8 KiB
Go
// Copyright 2021 The Periph Authors. All rights reserved.
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// Use of this source code is governed under the Apache License, Version 2.0
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// that can be found in the LICENSE file.
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package waveshare2in13v2
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type controller interface {
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sendCommand(byte)
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sendData([]byte)
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waitUntilIdle()
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}
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func initDisplay(ctrl controller, opts *Opts) {
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ctrl.waitUntilIdle()
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ctrl.sendCommand(swReset)
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ctrl.waitUntilIdle()
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ctrl.sendCommand(setAnalogBlockControl)
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ctrl.sendData([]byte{0x54})
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ctrl.sendCommand(setDigitalBlockControl)
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ctrl.sendData([]byte{0x3B})
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ctrl.sendCommand(driverOutputControl)
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ctrl.sendData([]byte{
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byte((opts.Height - 1) % 0xFF),
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byte((opts.Height - 1) / 0xFF),
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0x00,
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})
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ctrl.sendCommand(gateDrivingVoltageControl)
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ctrl.sendData([]byte{gateDrivingVoltage19V})
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ctrl.sendCommand(sourceDrivingVoltageControl)
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ctrl.sendData([]byte{sourceDrivingVoltageVSH1_15V, sourceDrivingVoltageVSH2_5V, sourceDrivingVoltageVSL_neg15V})
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ctrl.sendCommand(setDummyLinePeriod)
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ctrl.sendData([]byte{0x30})
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ctrl.sendCommand(setGateTime)
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ctrl.sendData([]byte{0x0A})
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}
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func configDisplayMode(ctrl controller, mode PartialUpdate, lut LUT) {
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var vcom byte
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var borderWaveformControlValue byte
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switch mode {
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case Full:
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vcom = 0x55
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borderWaveformControlValue = 0x03
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case Partial:
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vcom = 0x24
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borderWaveformControlValue = 0x01
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}
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ctrl.sendCommand(writeVcomRegister)
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ctrl.sendData([]byte{vcom})
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ctrl.sendCommand(borderWaveformControl)
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ctrl.sendData([]byte{borderWaveformControlValue})
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ctrl.sendCommand(writeLutRegister)
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ctrl.sendData(lut[:70])
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if mode == Partial {
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// Undocumented command used in vendor example code.
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ctrl.sendCommand(0x37)
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ctrl.sendData([]byte{0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00})
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ctrl.sendCommand(displayUpdateControl2)
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ctrl.sendData([]byte{0xC0})
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ctrl.sendCommand(masterActivation)
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}
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ctrl.waitUntilIdle()
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}
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