Added functionality for actually downloading a real dc.
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@ -3,12 +3,15 @@
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#include <QThread>
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#include <QString>
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#include <QByteArray>
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class hwinf;
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class DownloadThread : public QThread {
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Q_OBJECT
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public:
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enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
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DownloadThread(hwinf *hw);
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~DownloadThread();
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@ -18,6 +21,15 @@ protected:
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void run() override;
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private:
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DownloadResult sendStatus(int ret) const;
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DownloadResult sendNextAddress(int bNum) const;
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DownloadResult sendNextDataBlock(QByteArray const &binary, int bNum) const;
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bool startBootloader() const;
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bool stopBootloader() const;
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QByteArray loadBinaryDCFile(QString dcFileName) const;
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bool resetDeviceController() const;
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DownloadResult dcDownloadBinary(QByteArray const &b) const;
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hwinf *m_hw;
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QString m_fileToDownload;
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};
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@ -16,8 +16,135 @@ DownloadThread::DownloadThread(hwinf *hw)
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DownloadThread::~DownloadThread() {
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}
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// download thread running in ca-master sends the dc-file down to firmware
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/*
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///////////////////////////////////////////////////////////////////////////////
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//
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// USING THE DC BOOTLOADER
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//
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///////////////////////////////////////////////////////////////////////////////
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1 : bl_reboot() // send to application, want DC2 to reset (in order to
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// start the bootloader)
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//
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// NOTE: this function is NOT reliable !!! Sometimes it
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// simply does not work, in which case bl_startBL,
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// bl_checkBL and bl_isUp do not work as well.
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// Alas, there is no feedback if bl_reboot worked!
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//
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// NOTE: this function can be called only once per
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// minute, because once called again, the controller
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// performs some self-checks consuming some time.
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//
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// NOTE: after a successful bl_reboot(), the device is
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// waiting about 4 seconds in the bootloader. To stay in
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// the bootloader, we have to send the command
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// bl_startBL(), which is kind of a misnomer, as it
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// should be bl_doNotLeaveBL().
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//
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2 : bl_startBL(): // send within 4s after DC power-on, otherwise
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// bootloader is left.
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//
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// NOTE: a running bootloader is a MUST for the download
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// process of a device controller firmware as it does
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// the actual writing of the memory (the bl_reboot()
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// from above erases the available memory).
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//
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3 : bl_check(): // send command to verify if bl is up
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//
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// NOTE: this command is kind of a request that we want
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// to check if the bootloader is up. The device
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// (actually the bootloader) responds with its version.
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//
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4 : bl_isUp(): // returns true if bl is up and running
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//
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// NOTE: we know what the bootloader version actually is
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// as the bootloader does not change. By comparing the
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// string received in the previous step with this known
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// version string we know if the bootloader is up.
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//
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// NOTE FOR ALL PREVIOUS STEPS: execute them in their
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// own slots each to be sure to receive any possible
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// responds from the device.
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//
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5 : bl_sendAddress(blockNumber)
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// send start address, nr of 64-byte block, start with 0
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// will be sent only for following block-numbers:
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// 0, 1024, 2048, 3072 and 4096, so basically every
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// 64kByte.
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// for other addresses nothing happens
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6 : bl_wasSendingAddOK()
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// return val: 0: no response by now
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// 1: error
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// 10: OK
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7 : bl_sendDataBlock()
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// send 64 byte from bin file
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8 : bl_sendLastBlock()
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// send this command after all data are transferred
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9 : bl_wasSendingDataOK()
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// return val: 0: no response by now
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// 1: error
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// 10: OK
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10 : bl_stopBL() // leave bl and start (the new) application
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//
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// NOTE: this function MUST work under all conditions.
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// Alas, there is no direct result for this command, so
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// the only way of knowing it was successful is to ask
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// the device if the bootloader is still running.
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// There is no problem to repeat this command until the
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// bootloader is really not running anymore.
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*/
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void DownloadThread::run() {
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// download thread running in ca-master sends the dc-file down to firmware
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#if 0
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Update::DownloadResult Update::dc_downloadBinary(QByteArray const &b) const {
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int const nBlocks = (((b.size())%64)==0) ? (b.size()/64) : (b.size()/64)+1;
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// fill lst block of data to be sent with 0xFF
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QByteArray ba = b.leftJustified(nBlocks*64, (char)(0xFF));
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qInfo() << "total number of bytes to send to dc" << ba.size();
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qInfo() << "total number of blocks to send to dc" << nBlocks;
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int bNum = 0;
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DownloadResult res = DownloadResult::OK;
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fprintf(stderr, "\n64-byte block %04d ", bNum);
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while (res != DownloadResult::ERROR && bNum < nBlocks) {
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if ((res = sendNextAddress(bNum)) != DownloadResult::ERROR) {
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if ((res = sendNextDataBlock(ba, bNum)) != DownloadResult::ERROR) {
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bNum += 1;
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fprintf(stderr, ".");
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if ((bNum % 80) == 0) {
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fprintf(stderr, "\n64-byte block %04d ", bNum);
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}
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}
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}
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}
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fprintf(stderr, "\nlast 64-byte block %04d\n", bNum);
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int const rest = ba.size() % 64;
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int const offset = ba.size() - rest;
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char const *startAddress = ba.constData() + offset;
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if (rest > 0) {
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// SHOULD NEVER HAPPEN !!!
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uint8_t local[66];
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memset(local, 0xFF, sizeof(local));
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memcpy(local, startAddress, rest);
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qCritical() << "ERROR SEND REMAINING" << rest << "BYTES";
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m_hw->bl_sendDataBlock(64, local);
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}
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m_hw->bl_sendLastBlock();
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qInfo() << "last result" << (int)sendStatus(m_hw->bl_wasSendingDataOK());
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return res;
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}
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#endif
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m_hw->dcDownloadRequestAck();
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@ -41,3 +168,146 @@ void DownloadThread::run() {
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// Never touch the object after this statement
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// m_hw->dcDownloadThreadFinalize(this);
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}
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DownloadThread::DownloadResult DownloadThread::sendStatus(int ret) const {
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switch (ret) { // return values of dc are:
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case 0: // 0: no answer by now
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return DownloadResult::NOP; // 1: error
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case 10: // 10: success
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return DownloadResult::OK;
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default:;
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}
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return DownloadResult::ERROR;
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}
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DownloadThread::DownloadResult
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DownloadThread::sendNextAddress(int bNum) const {
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// sends address only if blockNumber is one of 0, 1024, 2048, 3072, 4096
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int noAnswerCount = 0;
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int errorCount = 0;
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if ( bNum==0 || bNum==1024 || bNum==2048 || bNum==3072 || bNum==4096 ) {
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// qDebug() << "addr-block" << bNum << "...";
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while (noAnswerCount <= 250) {
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m_hw->bl_sendAddress(bNum);
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QThread::msleep(100);
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DownloadResult const res = sendStatus(m_hw->bl_wasSendingAddOK());
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if (res != DownloadResult::NOP) {
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if (res == DownloadResult::ERROR) {
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if (++errorCount >= 10) {
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qCritical() << "addr-block" << bNum << "...FAILED";
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return res;
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}
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} else { // res == DownloadResult::OK
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// qInfo() << "addr-block" << bNum << "...OK";
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// TODO: hier ins shared-mem schreiben
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return res;
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}
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} else {
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noAnswerCount += 1; // no answer by now
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}
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}
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// wait max. about 3 seconds
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return DownloadResult::TIMEOUT;
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}
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// blockNumber is not one of 0, 1024, 2048, 3072, 4096 -> do nothing
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return DownloadResult::NOP;
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}
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DownloadThread::DownloadResult
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DownloadThread::sendNextDataBlock(QByteArray const &binary, int bNum) const {
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uint8_t local[66];
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int const bAddr = bNum * 64;
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int noAnswerCount = 0;
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int errorCount = 0;
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memcpy(local, binary.constData() + bAddr, 64);
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local[64] = local[65] = 0x00;
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// QByteArray b((const char *)(&local[0]), 64);
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// qCritical() << "SNDB" << bNum << b.size() << b.toHex();
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while (noAnswerCount <= 250) {
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m_hw->bl_sendDataBlock(64, local);
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QThread::msleep(10);
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DownloadResult const res = sendStatus(m_hw->bl_wasSendingDataOK());
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if (res != DownloadResult::NOP) {
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if (res == DownloadResult::ERROR) {
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if (++errorCount >= 10) {
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qCritical() << "data for block" << bNum << "...FAILED";
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return res;
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}
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} else {
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// qInfo() << "data for block" << bNum << "OK";
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// TODO: hier ins shared mem schreiben
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return res;
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}
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} else {
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noAnswerCount += 1; // no answer by now
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}
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}
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// wait max. about 3 seconds
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return DownloadResult::TIMEOUT;
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}
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bool DownloadThread::startBootloader() const {
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qDebug() << "starting bootloader...";
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int nTry = 5;
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while (--nTry >= 0) {
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m_hw->bl_startBL();
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QThread::msleep(5000);
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m_hw->bl_checkBL();
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if (m_hw->bl_isUp()) {
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qInfo() << "starting bootloader...OK";
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QThread::msleep(5000);
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return true;
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} else {
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qCritical() << "bootloader not up (" << nTry << ")";
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}
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}
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qCritical() << "starting bootloader...FAILED";
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return false;
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}
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bool DownloadThread::stopBootloader() const {
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qDebug() << "stopping bootloader...";
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int nTry = 5;
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while (--nTry >= 0) {
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m_hw->bl_stopBL();
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QThread::msleep(500);
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if (!m_hw->bl_isUp()) {
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qInfo() << "stopping bootloader...OK";
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return true;
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}
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}
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qCritical() << "stopping bootloader...FAILED";
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return false;
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}
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bool DownloadThread::resetDeviceController() const {
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qDebug() << "resetting device controller...";
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m_hw->bl_rebootDC();
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// wait maximally 3 seconds, before starting bootloader
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QThread::sleep(1);
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qInfo() << "resetting device controller...OK";
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return true;
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}
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QByteArray DownloadThread::loadBinaryDCFile(QString filename) const {
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qDebug() << "loading dc binary" << filename << "...";
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QFile file(filename); // closed in destructor call
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if (!file.exists()) {
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qCritical() << file.fileName() << "does not exist";
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return QByteArray();
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}
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if (!file.open(QIODevice::ReadOnly)) {
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qCritical() << "cannot open file" << file.fileName();
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return QByteArray();
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}
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qInfo() << "loading dc binary" << filename << "...OK";
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return file.readAll();
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}
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