152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
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#include "fatfs.h"
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#include "usbd_cdc_if.h"
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#include "firmware.pb.h"
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#include "cmsis_os2.h"
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#include <pb_encode.h>
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#include "UsbDataHandler.h"
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#include "crc.h"
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#include "FirmwareUpdate.h"
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// static memory only for decoding messages
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static FirmwareStart msg_FirmwareStart;
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static FirmwarePackage msg_FirmwarePackage;
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static FirmwarePackageAck msg_FirmwarePackageAck;
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static FirmwareDone msg_FirmwareDone;
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static FirmwareFileCheck msg_FirmwareFileCheck;
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static UsbDataPacket pack_FirmwarePackage;
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static FIL FwFile = {0};
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static bool FileOpen = false;
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static FRESULT fresult_open =0;
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static uint32_t fwStartTime = 0;
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static uint32_t fwPackageCounter =0;
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#define ASSERT_SIZE(x) \
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{ \
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if (!(x)) \
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Error_Handler(); \
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}
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#define DATA_CLBK_SETUP(name) \
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{ \
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ASSERT_SIZE(length == sizeof(name)); \
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memcpy(&msg_##name, msg, sizeof(name)); \
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}
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/**
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* @brief This function builds and sends a FirmwarePackageAck message over USB.
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*
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* @param ack A boolean flag indicating the acknowledgment status.
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* @param crc A 32-bit cyclic redundancy check (CRC) for the firmware package.
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* @param counter A 32-bit counter for the firmware packages.
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* @param device A 32-bit identifier for the device.
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*/
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void DataSend_FirmwarePackgeAck(bool ack, uint32_t crc, uint32_t counter, uint32_t device) {
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msg_FirmwarePackageAck.ack = ack;
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msg_FirmwarePackageAck.counter= counter;
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msg_FirmwarePackageAck.crc_pac = crc;
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msg_FirmwarePackageAck.device_id =device;
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UsbDataPacketSendMessage(UsbPackageType_FIRMWAREPACKAGEACK, &pack_FirmwarePackage, FirmwarePackageAck_fields, &msg_FirmwarePackageAck);
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}
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void DataSend_FirmwareFileCheck(uint32_t crc, uint32_t device_id, bool ready_for_data, UINT size, char* name) {
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msg_FirmwareFileCheck.crc_fw = crc;
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msg_FirmwareFileCheck.device_id = device_id;
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msg_FirmwareFileCheck.ready_for_data = ready_for_data;
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msg_FirmwareFileCheck.size = size;
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memcpy(msg_FirmwareFileCheck.name, name, sizeof(msg_FirmwareFileCheck.name));
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UsbDataPacketSendMessage(UsbPackageType_FIRMWAREFILECHECK, &pack_FirmwarePackage, FirmwareFileCheck_fields, &msg_FirmwareFileCheck);
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}
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#define CHUNK_SIZE 256 // Change this to the size of chunks you want to read
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static uint8_t crc_buffer[CHUNK_SIZE];
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void DataClbk_FirmwareStart(void *msg, uint32_t length) {
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DATA_CLBK_SETUP(FirmwareStart);
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fwStartTime = osKernelGetSysTimerCount();
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fwPackageCounter = 0;
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uint32_t crc = 0;
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UINT totalRead = 0;
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UINT bytesRead = 0;
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if(FileOpen) {
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f_close(&FwFile);
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}
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// Check if file already exists
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if(f_open(&FwFile, msg_FirmwareStart.name, FA_READ) == FR_OK) {
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__HAL_CRC_DR_RESET(&hcrc);
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do {
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f_read(&FwFile, crc_buffer, CHUNK_SIZE, &bytesRead);
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crc = HAL_CRC_Accumulate(&hcrc, (uint32_t *)crc_buffer, bytesRead);
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totalRead+=bytesRead;
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} while(bytesRead == CHUNK_SIZE);
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f_close(&FwFile);
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if(crc == msg_FirmwareStart.crc_fw) {
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// CRC matches, no need for transfer
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DataSend_FirmwareFileCheck(crc, msg_FirmwareStart.device_id, false, totalRead, msg_FirmwareStart.name);
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return;
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}
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}
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fresult_open = f_open(&FwFile, msg_FirmwareStart.name, FA_CREATE_ALWAYS | FA_WRITE);
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FileOpen=true;
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DataSend_FirmwareFileCheck(crc, msg_FirmwareStart.device_id, fresult_open==FR_OK, totalRead, msg_FirmwareStart.name);
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}
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void DataClbk_FirmwarePackage(void *msg, uint32_t length) {
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DATA_CLBK_SETUP(FirmwarePackage);
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// check CRC and Package counter
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uint32_t crc_check = HAL_CRC_Calculate(&hcrc,(uint32_t *)msg_FirmwarePackage.data.bytes, msg_FirmwarePackage.data.size);
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if(msg_FirmwarePackage.crc_pac != crc_check ) {
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DataSend_FirmwarePackgeAck(false, msg_FirmwarePackage.crc_pac, msg_FirmwarePackage.counter, msg_FirmwarePackage.device_id);
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return;
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}
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if(msg_FirmwarePackage.counter != fwPackageCounter) {
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DataSend_FirmwarePackgeAck(false, msg_FirmwarePackage.crc_pac, msg_FirmwarePackage.counter, msg_FirmwarePackage.device_id);
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return;
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}
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if(fresult_open != 0) {
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DataSend_FirmwarePackgeAck(false, 0, 0, msg_FirmwarePackage.device_id);
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return;
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}
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unsigned int bytes_written =0;
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f_write(&FwFile,msg_FirmwarePackage.data.bytes, msg_FirmwarePackage.data.size, &bytes_written);
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fwPackageCounter++;
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DataSend_FirmwarePackgeAck(true, msg_FirmwarePackage.crc_pac, msg_FirmwarePackage.counter, msg_FirmwarePackage.device_id);
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}
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void DataClbk_FirmwarePackageAck(void *msg, uint32_t length) {
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DATA_CLBK_SETUP(FirmwarePackageAck);
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// Does notthing for the Master
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}
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void DataClbk_FirmwareDone(void *msg, uint32_t length) {
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DATA_CLBK_SETUP(FirmwareDone);
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// check CRC and Package counter
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f_close(&FwFile);
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fresult_open = 0xFF;
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FileOpen=false;
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FirmwareUpdateArgs args;
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args.device = msg_FirmwareDone.device_id;
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memcpy(args.name, msg_FirmwareStart.name, sizeof(args.name));
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FirmwareUpdateTask_start(args);
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} |