Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100755 (executable)
index 0000000..082122d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+*.o\r
+*~\r
+decode_sci\r
+\r

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..31dc726
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,13 @@
+EXEC = decode_sci
+OBJS = decode_sci.o
+
+all: $(EXEC)
+
+$(EXEC): $(OBJS)
+       $(CC) $(LDFLAGS) -o $@ $(OBJS)  $(LDLIBS)
+
+clean:
+       -rm -f $(EXEC) *.elf *.gdb *.o *~
+
+%.o: %.c
+       $(CC) -c $(CFLAGS) -o $@ $<

diff --git a/decode_sci.c b/decode_sci.c
new file mode 100644 (file)
index 0000000..4b191a3
--- /dev/null
+++ b/decode_sci.c
@@ -0,0 +1,141 @@
+/*
+       decode_sci.c
+       sciLogger high sample data decoder
+
+       入力ファイル　Little Endian
+       このプログラムが動作するマシンもLittle Endianである必要あり。
+
+  Copyright Naoya Takamura@NT systemd design, 2011
+ 
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+ 
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+ 
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#define        VER     "1.0"
+#define        AD_CH   6
+#define        AD_SAMPLE       50
+#define        AD_BYTES        3
+
+struct _recdata_head_t {
+    uint16_t   year;   // UTC
+    uint8_t            month;
+    uint8_t            day;
+    uint8_t            hour;
+    uint8_t            min;
+    uint8_t            sec;
+    uint32_t   tacc;   // ns
+    uint8_t            valid;
+    uint16_t   freq;   // 記録周波数 Hz
+} __attribute__((__packed__));
+
+
+typedef struct _recdata_head_t recdata_head;
+
+#define        REC_DATALEN_HEAD        sizeof(recdata_head)
+
+/*
+       Little Endian
+       3byte -> signed long(4byte)
+*/
+static long b3_to_long32(unsigned char *ptr)
+{
+       char    buf[4];
+       
+       buf[0] = *ptr++;
+       buf[1] = *ptr++;
+       buf[2] = *ptr;
+       if (*ptr & 0x80) {
+               buf[3] = 0xFF;
+       } else {
+               buf[3] = 0;
+       }
+       return *((long*)buf);
+}
+
+/*
+       data decode
+*/
+static void read_high(FILE *fp)
+{
+       recdata_head    d;
+       int     ch, j;
+       uint8_t data[AD_CH * AD_SAMPLE * AD_BYTES];
+
+       while(1) {
+               // Header
+               if (fread(&d, 1, REC_DATALEN_HEAD, fp) < 1) break;
+//fprintf(stderr, "%02d:%02d:%02d.%03d %d %d", d.hour, d.min, d.sec, (1000*j/AD_SAMPLE), d.tacc, d.valid);
+               if (d.freq > AD_SAMPLE || d.freq < 1) {
+                       fprintf(stderr, "read_high() Error freq=%d\n", d.freq);
+                       break;
+               }
+               int data_size = AD_CH * d.freq * AD_BYTES;
+               // AD data
+               if (fread(data, 1, data_size, fp) < 1) break;
+               for(j = 0; j < d.freq; j++) {
+                       fprintf(stdout, "%02d:%02d:%02d.%03d", d.hour, d.min, d.sec, (1000*j/d.freq));
+                       for(ch = 0; ch < AD_CH; ch++) {
+                               fprintf(stdout, ",%+07ld", b3_to_long32((char*)(data + ch*d.freq*AD_BYTES + j*AD_BYTES)));
+                       }
+                       fprintf(stdout, "\n");
+               }
+       }
+}
+
+int main(int argc, char *argv[])
+{
+       FILE    *fpin;
+       FILE    *fpout;
+       char    fname_out[128];
+       char    sz[32];
+       unsigned char   buf[256];
+
+//printf("len=%d\n", REC_DATALEN_HEAD);
+// exit(0);
+
+       if (argc == 1) {
+               printf("sciLogger high sample data converter Ver"VER"\n");
+               printf("Please set filename.\n");
+               exit(0);
+       }
+       
+       fpin = fopen(argv[1], "rb");
+
+       if (fpin == NULL) {
+               fprintf(stderr, "Input file open error.\n");
+               goto errout2;
+       }
+       // 出力ファイル名
+       strcpy(fname_out, argv[1]);
+       strcat(fname_out, ".txt");
+
+       fpout = freopen(fname_out, "w", stdout);
+       if (fpout == NULL) {
+               fprintf(stderr, "Output file open ERROR. %s\n", fname_out);
+               goto errout1;
+       }
+       read_high(fpin);
+
+       fclose(fpout);
+       fclose(fpin);
+       return 0;
+errout1:
+       fclose(fpin);
+errout2:
+       return -1;
+}