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Fix offset issues in OTA procedure.

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CRC verification : work in progress (not fully working for now).
This commit is contained in:
JF 2020-05-20 18:39:25 +02:00
parent ee05577dd6
commit ce32863693
2 changed files with 70 additions and 7 deletions
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67
src/Components/Ble/DfuService.cpp
View file

@ -1,5 +1,6 @@
#include <Components/Ble/BleController.h>
#include <SystemTask/SystemTask.h>
#include <cstring>
#include "DfuService.h"
using namespace Pinetime::Controllers;
@ -103,15 +104,17 @@ int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf *om) {
softdeviceSize = om->om_data[0] + (om->om_data[1] << 8) + (om->om_data[2] << 16) + (om->om_data[3] << 24);
bootloaderSize = om->om_data[4] + (om->om_data[5] << 8) + (om->om_data[6] << 16) + (om->om_data[7] << 24);
applicationSize = om->om_data[8] + (om->om_data[9] << 8) + (om->om_data[10] << 16) + (om->om_data[11] << 24);
bleController.FirmwareUpdateTotalBytes(applicationSize);
NRF_LOG_INFO("[DFU] -> Start data received : SD size : %d, BT size : %d, app size : %d", softdeviceSize, bootloaderSize, applicationSize);
for(int erased = 0; erased < applicationSize; erased += 0x1000) {
spiNorFlash.SectorErase(erased);
#if 1
spiNorFlash.SectorErase(writeOffset + erased);
auto p = spiNorFlash.ProgramFailed();
auto e = spiNorFlash.EraseFailed();
NRF_LOG_INFO("[DFU] Erasing sector %d - %d-%d", erased, p, e);
#endif
}
uint8_t data[] {16, 1, 1};
@ -130,7 +133,7 @@ int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf *om) {
}
uint16_t crc = om->om_data[10 + (softdeviceArrayLength*2)] + (om->om_data[10 + (softdeviceArrayLength*2)] << 8);
NRF_LOG_INFO("[DFU] -> Init data received : deviceType = %d, deviceRevision = %d, applicationVersion = %d, nb SD = %d, First SD = %d, CRC = %d",
NRF_LOG_INFO("[DFU] -> Init data received : deviceType = %d, deviceRevision = %d, applicationVersion = %d, nb SD = %d, First SD = %d, CRC = %u",
deviceType, deviceRevision, applicationVersion, softdeviceArrayLength, sd[0], crc);
return 0;
@ -138,8 +141,21 @@ int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf *om) {
case States::Data: {
nbPacketReceived++;
auto offset = ((nbPacketReceived-1) % nbPacketsToNotify)*20;
std::memcpy(tempBuffer + offset, om->om_data, om->om_len);
if(firstCrc) {
tempCrc = ComputeCrc(om->om_data, om->om_len, NULL);
firstCrc = false;
}
else
tempCrc = ComputeCrc(om->om_data, om->om_len, &tempCrc);
if(nbPacketReceived > 0 && (nbPacketReceived % nbPacketsToNotify) == 0) {
#if 1
spiNorFlash.Write(writeOffset + ((nbPacketReceived-nbPacketsToNotify)*20), tempBuffer, 200);
#endif
}
spiNorFlash.Write(bytesReceived, om->om_data, om->om_len);
bytesReceived += om->om_len;
bleController.FirmwareUpdateCurrentBytes(bytesReceived);
@ -157,9 +173,11 @@ int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf *om) {
uint8_t data[3]{static_cast<uint8_t>(Opcodes::Response),
static_cast<uint8_t>(Opcodes::ReceiveFirmwareImage),
static_cast<uint8_t>(ErrorCodes::NoError)};
NRF_LOG_INFO("[DFU] -> Send packet notification : all bytes received!");
NRF_LOG_INFO("[DFU] -> Send packet notification : all bytes received! CRC = %u", tempCrc);
SendNotification(connectionHandle, data, 3);
state = States::Validate;
Validate();
}
}
return 0;
@ -189,7 +207,7 @@ int DfuService::ControlPointHandler(uint16_t connectionHandle, os_mbuf *om) {
NRF_LOG_INFO("[DFU] -> Start DFU, mode = Application");
state = States::Start;
bleController.StartFirmwareUpdate();
bleController.FirmwareUpdateTotalBytes(175280);
bleController.FirmwareUpdateTotalBytes(0xffffffffu);
bleController.FirmwareUpdateCurrentBytes(0);
systemTask.PushMessage(Pinetime::System::SystemTask::Messages::BleFirmwareUpdateStarted);
return 0;
@ -260,3 +278,40 @@ void DfuService::SendNotification(uint16_t connectionHandle, const uint8_t *data
auto ret = ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om);
ASSERT(ret == 0);
}
uint16_t DfuService::ComputeCrc(uint8_t const * p_data, uint32_t size, uint16_t const * p_crc)
{
uint16_t crc = (p_crc == NULL) ? 0xFFFF : *p_crc;
for (uint32_t i = 0; i < size; i++)
{
crc = (uint8_t)(crc >> 8) | (crc << 8);
crc ^= p_data[i];
crc ^= (uint8_t)(crc & 0xFF) >> 4;
crc ^= (crc << 8) << 4;
crc ^= ((crc & 0xFF) << 4) << 1;
}
return crc;
}
void DfuService::Validate() {
uint32_t chunkSize = 200;
int currentOffset = 0;
uint16_t crc = 0;
bool first = true;
while(currentOffset < applicationSize) {
uint32_t readSize = (applicationSize - currentOffset) > chunkSize ? chunkSize : (applicationSize - currentOffset);
spiNorFlash.Read(writeOffset + currentOffset, tempBuffer, chunkSize);
if(first) {
crc = ComputeCrc(tempBuffer, chunkSize, NULL);
first = false;
}
else
crc = ComputeCrc(tempBuffer, chunkSize, &crc);
currentOffset += readSize;
}
NRF_LOG_INFO("CRC : %u", crc);
}

10
src/Components/Ble/DfuService.h
View file

@ -89,15 +89,23 @@ namespace Pinetime {
uint8_t nbPacketsToNotify = 0;
uint32_t nbPacketReceived = 0;
uint32_t bytesReceived = 0;
uint32_t writeOffset = 0; //0x40000;
uint32_t softdeviceSize = 0;
uint32_t bootloaderSize = 0;
uint32_t applicationSize = 0;
uint32_t applicationSize = 115200;
int SendDfuRevision(os_mbuf *om) const;
void SendNotification(uint16_t connectionHandle, const uint8_t *data, const size_t size);
int WritePacketHandler(uint16_t connectionHandle, os_mbuf *om);
int ControlPointHandler(uint16_t connectionHandle, os_mbuf *om);
uint8_t tempBuffer[200];
uint16_t ComputeCrc(uint8_t const * p_data, uint32_t size, uint16_t const * p_crc);
void Validate();
bool firstCrc = true;
uint16_t tempCrc = 0;
};
}
}