add referenced files

1 files changed, 247 insertions, 0 deletions

diff --git a/obdlogger/datalogger.h b/obdlogger/datalogger.h
new file mode 100644
index 0000000..1ca3ef9
--- /dev/null
+++ b/obdlogger/datalogger.h
@@ -0,0 +1,247 @@
+// configurations
+#define ENABLE_DATA_OUT 1
+#define ENABLE_DATA_LOG 1
+
+typedef enum {
+    LOG_TYPE_DEFAULT = 0,
+    LOG_TYPE_0_60,
+    LOG_TYPE_0_100,
+    LOG_TYPE_100_200,
+    LOG_TYPE_400M,
+    LOG_TYPE_LAPS,
+    LOG_TYPE_ROUTE,
+} LOG_TYPES;
+
+#define FLAG_CAR 0x1
+#define FLAG_CYCLING 0x2
+#define FLAG_OBD 0x10
+#define FLAG_GPS 0x20
+#define FLAG_ACC 0x40
+
+typedef struct {
+    uint32_t time;
+    uint16_t pid;
+    uint8_t flags;
+    uint8_t checksum;
+    float value;
+} LOG_DATA;
+
+typedef struct {
+    uint32_t time;
+    uint16_t pid;
+    uint8_t flags;
+    uint8_t checksum;
+    float value[3];
+} LOG_DATA_COMM;
+
+typedef struct {
+    uint32_t time; /* e.g. 1307281259 */
+    uint16_t pid;
+    uint8_t message;
+    uint8_t checksum;
+    uint16_t fileIndex;
+    uint16_t fileSize; /* KB */
+    uint16_t logFlags;
+    uint8_t logType;
+    uint8_t data[5];
+} LOG_DATA_FILE_INFO;
+
+typedef struct {
+    uint32_t time;
+    uint16_t pid;
+    uint8_t message;
+    uint8_t checksum;
+    uint8_t data[12];
+} LOG_DATA_COMMAND;
+
+typedef struct {
+    uint32_t id;
+    uint32_t dataOffset;
+    uint8_t ver;
+    uint8_t logType;
+    uint16_t flags;
+    uint32_t dateTime; //4, YYMMDDHHMM, e.g. 1305291359
+    /*
+    uint8_t devid[8];
+    uint8_t vin[24];
+    uint8_t unused[84];
+    */
+} HEADER;
+
+#define HEADER_LEN 128 /* bytes */
+
+#define PID_GPS_COORDINATES 0xF00A
+#define PID_GPS_ALTITUDE 0xF00C
+#define PID_GPS_SPEED 0xF00D
+#define PID_GPS_HEADING 0xF00E
+#define PID_GPS_SAT_COUNT 0xF00F
+#define PID_GPS_TIME 0xF010
+
+#define PID_ACC 0xF020
+#define PID_GYRO 0xF021
+
+#define PID_MESSAGE 0xFE00
+
+#define MSG_FILE_LIST_BEGIN 0x1
+#define MSG_FILE_LIST_END 0x2
+#define MSG_FILE_INFO 0x3
+#define MSG_FILE_REQUEST 0x4
+
+#define FILE_NAME_FORMAT "/DAT%05d.LOG"
+
+#if ENABLE_DATA_OUT
+#if defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__)
+    SoftwareSerial mySerial(A8, A9); /* for BLE Shield on MEGA*/
+#elif defined(__AVR_ATmega644P__)
+    SoftwareSerial mySerial(9, 10); /* for Microduino */
+#else
+    SoftwareSerial mySerial(A2, A3); /* for BLE Shield on UNO*/
+#endif
+#endif
+
+class CDataLogger {
+public:
+    void initSender()
+    {
+#if ENABLE_DATA_OUT
+        mySerial.begin(9600);
+#endif
+    }
+#if ENABLE_DATA_OUT
+    void sendFileInfo(File& file)
+    {
+        if (file.size() < HEADER_LEN) return;
+
+        LOG_DATA_FILE_INFO info = {0};
+        info.fileIndex = atol(file.name() + 3);
+        if (info.fileIndex == 0) return;
+
+        HEADER hdr;
+        if (file.readBytes((char*)&hdr, sizeof(hdr)) != sizeof(hdr)) return;
+
+        info.pid = PID_MESSAGE;
+        info.message = MSG_FILE_INFO;
+        info.fileSize = file.size();
+        info.time = hdr.dateTime;
+        info.logType = hdr.logType;
+        info.logFlags = hdr.flags;
+        info.checksum = getChecksum((char*)&info, sizeof(info));
+        mySerial.write((uint8_t*)&info, sizeof(info));
+    }
+    void sendCommand(byte message, void* data = 0, byte bytes = 0)
+    {
+        LOG_DATA_COMMAND msg = {0, PID_MESSAGE, message};
+        if (data) memcpy(msg.data, data, bytes);
+        msg.checksum = getChecksum((char*)&msg, sizeof(msg));
+        mySerial.write((uint8_t*)&msg, sizeof(msg));
+    }
+    bool receiveCommand(LOG_DATA_COMMAND& msg)
+    {
+        if (!mySerial.available())
+            return false;
+
+        if (mySerial.readBytes((char*)&msg, sizeof(msg)) != sizeof(msg))
+            return false;
+
+        uint8_t checksum = msg.checksum;
+        msg.checksum = 0;
+        if (getChecksum((char*)&msg, sizeof(msg)) != msg.checksum) {
+            return false;
+        }
+        return true;
+    }
+#endif
+    void logData(uint16_t pid, float value)
+    {
+        LOG_DATA_COMM ld = {dataTime, pid, 1, 0, value};
+        ld.checksum = getChecksum((char*)&ld, 12);
+#if ENABLE_DATA_OUT
+        mySerial.write((uint8_t*)&ld, 12);
+#endif
+#if ENABLE_DATA_LOG
+        sdfile.write((uint8_t*)&ld, 12);
+#endif
+        dataSize += 12;
+    }
+    void logData(uint16_t pid, float value1, float value2)
+    {
+        LOG_DATA_COMM ld = {dataTime, pid, 2, 0, {value1, value2}};
+        ld.checksum = getChecksum((char*)&ld, 16);
+#if ENABLE_DATA_OUT
+        mySerial.write((uint8_t*)&ld, 16);
+#endif
+#if ENABLE_DATA_LOG
+        sdfile.write((uint8_t*)&ld, 16);
+#endif
+        dataSize += 16;
+    }
+    void logData(uint16_t pid, float value1, float value2, float value3)
+    {
+        LOG_DATA_COMM ld = {dataTime, pid, 3, 0, {value1, value2, value3}};
+        ld.checksum = getChecksum((char*)&ld, 20);
+#if ENABLE_DATA_OUT
+        mySerial.write((uint8_t*)&ld, 20);
+#endif
+#if ENABLE_DATA_LOG
+        sdfile.write((uint8_t*)&ld, 20);
+#endif
+        dataSize += 20;
+    }
+#if ENABLE_DATA_LOG
+    uint16_t openFile(LOG_TYPES logType, uint16_t logFlags = 0, uint32_t dateTime = 0)
+    {
+        uint16_t fileIndex;
+        char filename[24] = "/FRMATICS";
+
+        if (SD.exists(filename)) {
+            for (fileIndex = 1; fileIndex; fileIndex++) {
+                sprintf(filename + 9, FILE_NAME_FORMAT, fileIndex);
+                if (!SD.exists(filename)) {
+                    break;
+                }
+            }
+            if (fileIndex == 0)
+                return 0;
+        } else {
+            SD.mkdir(filename);
+            fileIndex = 1;
+            sprintf(filename + 9, FILE_NAME_FORMAT, 1);
+        }
+
+        sdfile = SD.open(filename, FILE_WRITE);
+        if (!sdfile) {
+            return 0;
+        }
+
+        HEADER hdr = {'UDUS', HEADER_LEN, 1, logType, logFlags, dateTime};
+        sdfile.write((uint8_t*)&hdr, sizeof(hdr));
+        for (byte i = 0; i < HEADER_LEN - sizeof(hdr); i++)
+            sdfile.write((uint8_t)0);
+        dataSize = HEADER_LEN;
+        sdfile.flush();
+        return fileIndex;
+    }
+    void closeFile()
+    {
+        sdfile.close();
+    }
+    void flushFile()
+    {
+        sdfile.flush();
+    }
+#endif
+    uint32_t dataTime;
+    uint32_t dataSize;
+private:
+    static byte getChecksum(char* buffer, byte len)
+    {
+        uint8_t checksum = 0;
+        for (byte i = 0; i < len; i++) {
+          checksum ^= buffer[i];
+        }
+        return checksum;
+    }
+#if ENABLE_DATA_LOG
+    File sdfile;
+#endif
+};