libirena: add i2c(), to ahepamfile

.gitignore

@@ -14,3 +14,6 @@ irenarc.py
 irenafile
 */data
 ahepamfile
+*.log
+nm64file
+mustang

ahepam/ahepamfile.c

@@ -124,6 +124,7 @@ int main(int argc, const char * const * argv)
 		case 0xc264:
 		case 0xc364: x = nm_counters(h1); break;
 		default:
+			if ((h1 & 0xfff0)==0x12c0) { x = i2c(h1); break; }
 			switch (h1 & 0xfffc) {
 			case 0x5710: x = dorn_hk(h1, n_adcs, 1); break;
 			case 0x5714: x = dorn_samples(h1, n_adcs, 1); break;

irena/libirena.c

@@ -391,6 +391,61 @@ int mcs_pulse(unsigned int h1)
 	return 0;
 }
 
+int i2c_seth();
+
+int i2c(unsigned int h1)
+{
+	unsigned int magic = h1 & 0xf;
+	unsigned int size = next(1);
+	if (size & 0xff00 || !size) {
+		printf("\nXI²C 0x%04x 0x%04x", h1, size);
+		return 1;
+	}
+	if (size==132 && magic==5)
+		return i2c_seth();
+	printf("\nI²C %u %u", magic, --size);
+	while (size--)
+		printf(" %04x", next(1));
+	return 0;
+}
+
+void seth_vector(unsigned short *d, const char *sensor, int idx)
+{
+	printf("\nI2C-%s %2u  %5d %5d %5d",
+	       sensor, idx, d[0], d[1], d[2]);
+}
+
+int i2c_seth()
+{
+	unsigned short d[131];
+	for (int i=0; i<131; i++)
+		d[i] = next(1);
+	unsigned short mag_status = d[0];
+	short mag_temp = d[4];
+	unsigned short acc_aux = d[5];
+	short acc_adc1 = d[6];
+	short acc_adc2 = d[7];
+	short acc_temp = d[8];
+	unsigned short acc_fifo = d[63];
+	unsigned short acc_status = d[64];
+	const char *ok = "✓";
+	if (mag_status != 0xffa7
+	    || acc_status != 0xffa7
+	    || acc_aux != 0xff87
+	    || (acc_fifo & 0xff) != 0x2f)
+		ok = "!";
+	printf("\nISETH %s %04x %04x %04x %u  %d  %d  %d %d", ok,
+	       mag_status, acc_status, acc_aux, acc_fifo>>8,
+	       mag_temp+25, acc_temp+25, acc_adc1, acc_adc2 );
+	seth_vector(d+1, "MAG", 0);
+	for (int i=0; i<18; i++)
+		seth_vector(d+9+3*i, "MAG", i+1);
+	seth_vector(d+128, "MAG", 19);
+	for (int i=0; i<21; i++)
+		seth_vector(d+65+3*i, "ACC", i);
+	return 0;
+}
+
 const char libirena_usage[] =
 	" [opts] < infile > outfile\n"
 	"  -f --follow   follow mode\n"

irena/libirena.h

@@ -74,6 +74,7 @@ static inline unsigned short next(int inp)
 extern int n_counters;
 extern int nm_counter_gap[];
 int nm_counters(unsigned int h1);
+int i2c(unsigned int h1);
 
 static inline unsigned long uftoi(unsigned int f, unsigned int m)
 {