feat: add capture sketch, Vidor image tool and jitter analysis script
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arduino/libraries/VidorBoot/src/VidorMailbox.cpp
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arduino/libraries/VidorBoot/src/VidorMailbox.cpp
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/*
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This file is part of the VidorBoot/VidorPeripherals/VidorGraphics library.
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Copyright (c) 2018 Arduino SA. All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "VidorJTAG.h"
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#include "VidorMailbox.h"
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#define MB_BASE 0x00000000
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#define MB_INT_PIN 31
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#define MB_TIMEOUT 5000
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VidorMailboxClass::VidorMailboxClass() {}
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int VidorMailboxClass::begin()
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{
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if (!VidorJTAG.begin()) {
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return 0;
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}
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uint32_t rpc[1];
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rpc[0] = 0;
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VidorJTAG.writeBuffer(MB_BASE, rpc, 1);
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pinMode(MB_INT_PIN, OUTPUT);
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digitalWrite(MB_INT_PIN, LOW);
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return 1;
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}
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void VidorMailboxClass::end()
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{
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VidorJTAG.end();
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digitalWrite(MB_INT_PIN, LOW);
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pinMode(MB_INT_PIN, INPUT);
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}
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void VidorMailboxClass::reload()
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{
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VidorJTAG.reset();
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}
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int VidorMailboxClass::sendCommand(const uint32_t data[], size_t len)
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{
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if (data[0] == 0) {
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return -1;
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}
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if (write(0x00, data, len) != (int)len) {
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return -1;
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}
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digitalWrite(MB_INT_PIN, HIGH);
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digitalWrite(MB_INT_PIN, LOW);
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for (unsigned long start = millis(); (millis() - start) < MB_TIMEOUT;) {
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uint32_t result;
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read(0x00, &result, 1);
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if (result == 0) {
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read(0x01, &result, 1);
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return result;
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}
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}
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return -1;
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}
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int VidorMailboxClass::sendEvent(const uint32_t data[], size_t len)
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{
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if (write(0x00, data, len) != (int)len) {
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return -1;
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}
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digitalWrite(MB_INT_PIN, HIGH);
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digitalWrite(MB_INT_PIN, LOW);
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return len;
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}
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int VidorMailboxClass::read(uint32_t address, uint32_t data[], size_t len)
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{
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VidorJTAG.readBuffer(MB_BASE + address, data, len);
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return len;
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}
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int VidorMailboxClass::write(uint32_t address, const uint32_t data[], size_t len)
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{
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return VidorJTAG.writeBuffer(MB_BASE + address, data, len);
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}
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VidorMailboxClass VidorMailbox;
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