pervasive aurora mb: add initialization code for flashless updates (4bbf0751) · Commits · derf / multipass

include/driver/pervasive_aurora_mb.h

+11 −1

Original line number	Diff line number	Diff line
		@@ -21,7 +21,17 @@ class PervasiveAuroraMb {

		void setup();
		void powerOn();
		void initialize(signed char temperature = 20);

		/**
		* Initializes the display
		* @param temperature specify ambient temperature, defaults to 20 deg C
		* @param flashless perform (fast) flashless updates. Note that this
		* is not officially documented and, as far as I know,
		* _perminantly_ alters the display's internal look-up tables. It
		* may damage your display in the long run. Use at your own risk.
		*/
		void initialize(signed char temperature = 20, bool flashless = false);

		void sendImage(unsigned char *frame, unsigned int x = 0, unsigned int y = 0, unsigned int w = 0, unsigned int h = 0);
		void sendUpdate();
		void powerOff();

src/driver/pervasive_aurora_mb.cc

+79 −6

Original line number	Diff line number	Diff line
		/*
		* Copyright 2021 Daniel Friesel
		* Copyright 2021 Amar Memic
		*
		* SPDX-License-Identifier: BSD-2-Clause
		*
		@@ -31,7 +32,7 @@ void PervasiveAuroraMb::powerOn()
		gpio.write(PERVASIVE_AURORA_CS_PIN, 1);
		}

		void PervasiveAuroraMb::initialize(signed char temperature)
		void PervasiveAuroraMb::initialize(signed char temperature, bool flashless)
		{
		// "Input Temperature"
		spiWrite(0xe5, (const unsigned char*)&temperature, 1);
		@@ -40,10 +41,11 @@ void PervasiveAuroraMb::initialize(signed char temperature)
		spiWrite(0xe0, (const unsigned char[]){0x02}, 1);

		// "Panel Settings"
		if (flashless) {
		spiWrite(0x00, (const unsigned char[]){0x3f}, 1);
		} else {
		spiWrite(0x00, (const unsigned char[]){0x0f}, 1);

		// "Panel Settings"
		spiWrite(0x00, (const unsigned char[]){0x0f}, 1);
		}

		// "Booster soft start settings"
		spiWrite(0x06, (const unsigned char[]){0x17, 0x17, 0x27}, 3);
		@@ -52,10 +54,81 @@ void PervasiveAuroraMb::initialize(signed char temperature)
		spiWrite(0x61, (const unsigned char[]){0x01, 0x90, 0x01, 0x2c}, 4);

		// "Vcom and data interval setting"
		if (flashless) {
		spiWrite(0x50, (const unsigned char[]){0x80}, 1);
		} else {
		spiWrite(0x50, (const unsigned char[]){0x87}, 1);
		}

		// "Power Saving"
		spiWrite(0xe3, (const unsigned char[]){0x88}, 1);

		if (flashless) {
		// PLL
		spiWrite(0x30, (const unsigned char[]){0x3d}, 1);

		// VCom DC
		spiWrite(0x82, (const unsigned char[]){0x0e}, 1);

		// TCon
		spiWrite(0x60, (const unsigned char[]){0x00}, 1);

		// VCom LUT
		spiWrite(0x20, (const unsigned char[]){
		0x00, 0x06, 0x06, 0x06, 0x06, 0x01,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00
		}, 44);

		// W2B LUT
		spiWrite(0x23, (const unsigned char[]){
		0xaa, 0x06, 0x06, 0x06, 0x06, 0x01,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		}, 42);

		// B2W LUT
		spiWrite(0x22, (const unsigned char[]){
		0x55, 0x06, 0x06, 0x06, 0x06, 0x01,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		}, 42);

		// W2W LUT
		spiWrite(0x21, (const unsigned char[]){
		0x00, 0x06, 0x06, 0x06, 0x06, 0x01,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		}, 42);

		// B2B LUT
		spiWrite(0x24, (const unsigned char[]){
		0xff, 0x06, 0x06, 0x06, 0x06, 0x01,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		}, 42);
		}
		}

		void PervasiveAuroraMb::sendImage(unsigned char *frame, unsigned int x, unsigned int y, unsigned int w, unsigned int h)

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