X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fdrivers%2Fao_ms5607_convert_8051.c;h=a74086d9cb4086a2efd0cc2d993295a762dfe677;hp=f47972c98d2adc950b5bceec39f4411d1e650524;hb=3d5db24708b37d86eac187169e2553a408dfeb83;hpb=d0b4e926ecececa7499a301b6135189be119512e

diff --git a/src/drivers/ao_ms5607_convert_8051.c b/src/drivers/ao_ms5607_convert_8051.c
index f47972c9..a74086d9 100644
--- a/src/drivers/ao_ms5607_convert_8051.c
+++ b/src/drivers/ao_ms5607_convert_8051.c
@@ -16,45 +16,121 @@
  */
 
 #include <ao_ms5607.h>
+#include <ao_int64.h>
+
+#if HAS_MS5611
+#define SHIFT_OFF	16
+#define SHIFT_TCO	7
+#define SHIFT_SENS	15
+#define SHFIT_TCS	8
+#else
+#define SHIFT_OFF	17
+#define SHIFT_TCO	6
+#define SHIFT_SENS	16
+#define SHIFT_TCS	7
+#endif
 
 void
-ao_ms5607_convert(struct ao_ms5607_sample *sample, struct ao_ms5607_value *value)
+ao_ms5607_convert(__xdata struct ao_ms5607_sample *sample,
+		  __xdata struct ao_ms5607_value *value)
 {
-#if 0
-	int32_t	dT;
-	int32_t TEMP;
-	int64_t OFF;
-	int64_t SENS;
+	__LOCAL int32_t	dT;
+	__LOCAL int32_t TEMP;
+	__LOCAL ao_int64_t OFF;
+	__LOCAL ao_int64_t SENS;
+	__LOCAL ao_int64_t a;
 
-	dT = sample->temp - ((int32_t) ms5607_prom.tref << 8);
+	dT = sample->temp - ((int32_t) ao_ms5607_prom.tref << 8);
 	
-	TEMP = 2000 + (((int64_t) dT * ms5607_prom.tempsens) >> 23);
+	/* TEMP = 2000 + (((int64_t) dT * ao_ms5607_prom.tempsens) >> 23); */
+	ao_mul64_32_32(&a, dT, ao_ms5607_prom.tempsens);
+	ao_rshift64(&a, &a, 23);
+	TEMP = 2000 + a.low;
+	/* */
 
-#if HAS_MS5611
-	OFF = ((int64_t) ms5607_prom.off << 16) + (((int64_t) ms5607_prom.tco * dT) >> 7);
-	SENS = ((int64_t) ms5607_prom.sens << 15) + (((int64_t) ms5607_prom.tcs * dT) >> 8);
+	/* OFF = ((int64_t) ao_ms5607_prom.off << SHIFT_OFF) + (((int64_t) ao_ms5607_prom.tco * dT) >> SHIFT_TCO);*/
+#if SHIFT_OFF > 16
+	OFF.high = ao_ms5607_prom.off >> (32 - SHIFT_OFF);
 #else
-	OFF = ((int64_t) ms5607_prom.off << 17) + (((int64_t) ms5607_prom.tco * dT) >> 6);
-	SENS = ((int64_t) ms5607_prom.sens << 16) + (((int64_t) ms5607_prom.tcs * dT) >> 7);
+	OFF.high = 0;
 #endif
+	OFF.low = (uint32_t) ao_ms5607_prom.off << SHIFT_OFF;
+	ao_mul64_32_32(&a, ao_ms5607_prom.tco, dT);
+	ao_rshift64(&a, &a, SHIFT_TCO);
+	ao_plus64(&OFF, &OFF, &a);
+	/**/
+
+	/* SENS = ((int64_t) ao_ms5607_prom.sens << SHIFT_SENS) + (((int64_t) ao_ms5607_prom.tcs * dT) >> SHIFT_TCS); */
+	SENS.high = 0;
+	SENS.low = (uint32_t) ao_ms5607_prom.sens << SHIFT_SENS;
+	ao_mul64_32_32(&a, ao_ms5607_prom.tcs, dT);
+	ao_rshift64(&a, &a, SHIFT_TCS);
+	ao_plus64(&SENS, &SENS, &a);
+	/**/
 
 	if (TEMP < 2000) {
-		int32_t	T2 = ((int64_t) dT * (int64_t) dT) >> 31;
-		int32_t TEMPM = TEMP - 2000;
-		int64_t OFF2 = (61 * (int64_t) TEMPM * (int64_t) TEMPM) >> 4;
-		int64_t SENS2 = 2 * (int64_t) TEMPM * (int64_t) TEMPM;
-		if (TEMP < 1500) {
-			int32_t TEMPP = TEMP + 1500;
-			int64_t TEMPP2 = TEMPP * TEMPP;
-			OFF2 = OFF2 + 15 * TEMPP2;
-			SENS2 = SENS2 + 8 * TEMPP2;
+		__LOCAL int32_t	T2;
+		__LOCAL int32_t TEMPM;
+		__LOCAL ao_int64_t OFF2;
+		__LOCAL ao_int64_t SENS2;
+
+		/* T2 = ((int64_t) dT * (int64_t) dT) >> 31; */
+		ao_mul64_32_32(&a, dT, dT);
+		T2 = (a.low >> 31) | (a.high << 1);
+		/**/
+
+		TEMPM = TEMP - 2000;
+
+		/* OFF2 = (61 * (int64_t) TEMPM * (int64_t) TEMPM) >> 4; */
+		ao_mul64_32_32(&OFF2, TEMPM, TEMPM);
+		ao_mul64_64_16(&OFF2, &OFF2, 61);
+		ao_rshift64(&OFF2, &OFF2, 4);
+		/**/
+		
+		/* SENS2 = 2 * (int64_t) TEMPM * (int64_t) TEMPM; */
+		ao_mul64_32_32(&SENS2, TEMPM, TEMPM);
+		ao_lshift64(&SENS2, &SENS2, 1);
+		/**/
+
+		if (TEMP < -1500) {
+			int32_t TEMPP;
+			int32_t TEMPP2;
+
+			TEMPP = TEMP + 1500;
+			TEMPP2 = TEMPP * TEMPP;
+
+			/* OFF2 = OFF2 + 15 * TEMPP2; */
+			ao_mul64_32_32(&a, 15, TEMPP2);
+			ao_plus64(&OFF2, &OFF2, &a);
+			/**/
+
+			/* SENS2 = SENS2 + 8 * TEMPP2; */
+			a.high = 0;
+			a.low = TEMPP2;
+			ao_lshift64(&a, &a, 3);
+			ao_plus64(&SENS2, &SENS2, &a);
+			/**/
 		}
 		TEMP -= T2;
-		OFF -= OFF2;
-		SENS -= SENS2;
+
+		/* OFF -= OFF2; */
+		ao_minus64(&OFF, &OFF, &OFF2);
+		/**/
+
+		/* SENS -= SENS2; */
+		ao_minus64(&SENS, &SENS, &SENS2);
+		/**/
 	}
 
-	value->pres = ((((int64_t) sample->pres * SENS) >> 21) - OFF) >> 15;
+	/* value->pres = ((((int64_t) sample->pres * SENS) >> 21) - OFF) >> 15; */
+	a.high = 0;
+	a.low = sample->pres;
+	ao_mul64(&a, &a, &SENS);
+	ao_rshift64(&a, &a, 21);
+	ao_minus64(&a, &a, &OFF);
+	ao_rshift64(&a, &a, 15);
+	value->pres = a.low;
+	/**/
+	
 	value->temp = TEMP;
-#endif
 }