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gmc-mh-1x-2x: properly set encoding digits

This commit is contained in:
Aurelien Jacobs 2016-08-24 00:50:23 +02:00
parent 796f0e98a2
commit f4bd8a1718
2 changed files with 56 additions and 54 deletions
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108
src/hardware/gmc-mh-1x-2x/protocol.c
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@ -116,10 +116,10 @@ static void decode_ctmv_16(uint8_t ctmv, struct dev_context *devc)
*/
static void decode_rs_16(uint8_t rs, struct dev_context *devc)
{
sr_spew("decode_rs_16(%d) scale = %f", rs, devc->scale);
sr_spew("decode_rs_16(%d) scale = %d", rs, devc->scale);
if (rs & 0x04) /* Sign */
devc->scale *= -1.0;
devc->scale = -devc->scale;
if (devc->mq == SR_MQ_CURRENT) {
if (rs & 0x08) /* Current is AC */
@ -131,29 +131,29 @@ static void decode_rs_16(uint8_t rs, struct dev_context *devc)
switch (rs & 0x03) {
case 0:
if (devc->mq == SR_MQ_VOLTAGE) /* V */
devc->scale *= 0.1;
devc->scale += -1;
else if (devc->mq == SR_MQ_CURRENT) /* 000.0 µA */
devc->scale *= 0.00001;
devc->scale += -5;
else if (devc->mq == SR_MQ_RESISTANCE) {
if (devc->buflen >= 10) {
/* °C with 10 byte msg type, otherwise GOhm. */
devc->mq = SR_MQ_TEMPERATURE;
devc->unit = SR_UNIT_CELSIUS;
devc->scale *= 0.01;
devc->scale += -2;
} else if (devc->scale1000 == 2) {
/* 16I Iso 500/1000V 3 GOhm */
devc->scale *= 0.1;
devc->scale += -1;
}
}
break;
case 1:
devc->scale *= 0.0001;
devc->scale += -4;
break;
case 2:
devc->scale *= 0.001;
devc->scale += -3;
break;
case 3:
devc->scale *= 0.01;
devc->scale += -2;
break;
}
}
@ -267,14 +267,14 @@ static void decode_rs_18(uint8_t rs, struct dev_context *devc)
/* Sign */
if (((devc->scale > 0) && (rs & 0x08)) ||
((devc->scale < 0) && !(rs & 0x08)))
devc->scale *= -1.0;
devc->scale = -devc->scale;
/* Range */
range = rs & 0x07;
switch (devc->mq) {
case SR_MQ_VOLTAGE:
if (devc->unit == SR_UNIT_DECIBEL_VOLT) {
devc->scale *= pow(10.0, -2);
devc->scale += -2;
/*
* When entering relative mode, the device switches
* from 10 byte to 6 byte msg format. Unfortunately
@ -284,25 +284,25 @@ static void decode_rs_18(uint8_t rs, struct dev_context *devc)
*/
}
else
devc->scale *= pow(10.0, range - 5);
devc->scale += range - 5;
break;
case SR_MQ_CURRENT:
if (devc->scale1000 == -1)
devc->scale *= pow(10.0, range - 5);
devc->scale += range - 5;
else
devc->scale *= pow(10.0, range - 4);
devc->scale += range - 4;
break;
case SR_MQ_RESISTANCE:
devc->scale *= pow(10.0, range - 2);
devc->scale += range - 2;
break;
case SR_MQ_FREQUENCY:
devc->scale *= pow(10.0, range - 2);
devc->scale += range - 2;
break;
case SR_MQ_TEMPERATURE:
devc->scale *= pow(10.0, range - 2);
devc->scale += range - 2;
break;
case SR_MQ_CAPACITANCE:
devc->scale *= pow(10.0, range - 13);
devc->scale += range - 13;
break;
/* TODO: 29S Mains measurements. */
default:
@ -394,7 +394,7 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
case 0x09: /* 01001 F */
devc->mq = SR_MQ_CAPACITANCE;
devc->unit = SR_UNIT_FARAD;
devc->scale *= 0.1;
devc->scale += -1;
break;
case 0x0a: /* 01010 V dB */
devc->mq = SR_MQ_VOLTAGE;
@ -412,10 +412,10 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
devc->mqflags |= SR_MQFLAG_DC;
break;
case 0x0d: /* 01101 W on power, mA range (29S only) */
devc->scale *= 0.1;
devc->scale += -1;
/* Fall through! */
case 0x0e: /* 01110 W on power, A range (29S only) */
devc->scale *= 0.1;
devc->scale += -1;
devc->scale1000 = -1;
devc->mq = SR_MQ_POWER;
devc->unit = SR_UNIT_WATT;
@ -429,7 +429,7 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
devc->mqflags |= SR_MQFLAG_DIODE;
} else {
devc->mq = SR_MQ_CONTINUITY;
devc->scale *= 0.00001;
devc->scale += -5;
}
devc->unit = SR_UNIT_VOLT;
break;
@ -521,37 +521,37 @@ static void decode_rs_2x(uint8_t rs, struct dev_context *devc)
/* Sign */
if (((devc->scale > 0) && (rs & 0x08)) ||
((devc->scale < 0) && !(rs & 0x08)))
devc->scale *= -1.0;
devc->scale = -devc->scale;
/* Range */
range = rs & 0x07;
switch (devc->mq) {
case SR_MQ_VOLTAGE:
if (devc->unit == SR_UNIT_DECIBEL_VOLT)
devc->scale *= pow(10.0, -3);
devc->scale += -3;
else
devc->scale *= pow(10.0, range - 6);
devc->scale += range - 6;
break;
case SR_MQ_CURRENT:
if (devc->scale1000 != -1) /* uA, mA */
range += 1;/* mA and A ranges differ by 10^4, not 10^3!*/
devc->scale *= pow(10.0, range - 6);
devc->scale += range - 6;
break;
case SR_MQ_RESISTANCE:
devc->scale *= pow(10.0, range - 3);
devc->scale += range - 3;
break;
case SR_MQ_FREQUENCY:
devc->scale *= pow(10.0, range - 3);
devc->scale += range - 3;
break;
case SR_MQ_TEMPERATURE:
if (range == 4) /* Indicator for °F */
devc->unit = SR_UNIT_FAHRENHEIT;
devc->scale *= pow(10.0, - 2);
devc->scale += -2;
break;
case SR_MQ_CAPACITANCE:
if (range == 7)
range -= 1; /* Same value as range 6 */
devc->scale *= pow(10.0, range - 13);
devc->scale += range - 13;
break;
/* TODO: 29S Mains measurements. */
default:
@ -577,29 +577,29 @@ static void decode_rs_2x_TR2(uint8_t rs, struct dev_context *devc)
switch (range) {
case 0:
case 1: /* 100, 300 µA */
devc->scale *= pow(10.0, -6);
devc->scale += -6;
break;
case 2:
case 3: /* 1, 3 mA */
devc->scale *= pow(10.0, -5);
devc->scale += -5;
break;
case 4:
case 5: /* 10, 30 mA */
devc->scale *= pow(10.0, -4);
devc->scale += -4;
break;
case 6:
case 7: /* 100, 300 mA */
devc->scale *= pow(10.0, -3);
devc->scale += -3;
break;
}
else /* A */
switch (range) {
case 0:
case 1: /* 1, 3 A */
devc->scale *= pow(10.0, -5);
devc->scale += -5;
break;
case 2: /* 10 A */
devc->scale *= pow(10.0, -4);
devc->scale += -4;
break;
}
break;
@ -611,7 +611,7 @@ static void decode_rs_2x_TR2(uint8_t rs, struct dev_context *devc)
/* Sign */
if (((devc->scale > 0) && (rs & 0x08)) ||
((devc->scale < 0) && !(rs & 0x08)))
devc->scale *= -1.0;
devc->scale = -devc->scale;
}
/**
@ -641,7 +641,7 @@ static void decode_spc_2x(uint8_t spc, struct dev_context *devc)
static void clean_rs_v(struct dev_context *devc)
{
devc->value = 0.0;
devc->scale = 1.0;
devc->scale = 0;
}
/** Clean current type, measured variable, range and sign. */
@ -663,10 +663,12 @@ static void send_value(struct sr_dev_inst *sdi)
struct sr_analog_meaning meaning;
struct sr_analog_spec spec;
struct sr_datafeed_packet packet;
int digits;
devc = sdi->priv;
sr_analog_init(&analog, &encoding, &meaning, &spec, 0);
digits = -(devc->scale + 3 * devc->scale1000);
sr_analog_init(&analog, &encoding, &meaning, &spec, digits);
analog.meaning->channels = sdi->channels;
analog.num_samples = 1;
analog.meaning->mq = devc->mq;
@ -699,7 +701,7 @@ static void process_msg_dta_6(struct sr_dev_inst *sdi)
decode_rs_18(bc(devc->buf[0]), devc);
else {
decode_rs_2x(bc(devc->buf[0]), devc);
devc->scale *= 10; /* Compensate for format having only 5 digits, decode_rs_2x() assumes 6. */
devc->scale += 1; /* Compensate for format having only 5 digits, decode_rs_2x() assumes 6. */
}
/* Bytes 1-5, digits (ls first). */
@ -708,16 +710,16 @@ static void process_msg_dta_6(struct sr_dev_inst *sdi)
if (dgt >= 10) {
/* 10 Overload; on model <= 16X also 11 possible. */
devc->value = NAN;
devc->scale = 1.0;
devc->scale = 0;
break;
}
devc->value += pow(10.0, cnt) * dgt;
}
sr_spew("process_msg_dta_6() value=%f scale=%f scale1000=%d",
sr_spew("process_msg_dta_6() value=%f scale=%d scale1000=%d",
devc->value, devc->scale, devc->scale1000);
if (devc->value != NAN)
devc->value *= devc->scale * pow(1000.0, devc->scale1000);
devc->value *= pow(10.0, devc->scale) * pow(1000.0, devc->scale1000);
/* Create and send packet. */
send_value(sdi);
@ -775,16 +777,16 @@ static void process_msg_inf_10(struct sr_dev_inst *sdi)
}
else if (dgt >= 12) { /* Overload */
devc->value = NAN;
devc->scale = 1.0;
devc->scale = 0;
break;
}
devc->value += pow(10.0, cnt) * dgt;
}
sr_spew("process_msg_inf_10() value=%f scale=%f scalet=%d",
sr_spew("process_msg_inf_10() value=%f scale=%d scalet=%d",
devc->value, devc->scale, devc->scale1000);
if (devc->value != NAN)
devc->value *= devc->scale * pow(1000.0, devc->scale1000);
devc->value *= pow(10, devc->scale) * pow(1000.0, devc->scale1000);
/* Create and send packet. */
send_value(sdi);
@ -860,16 +862,16 @@ static void process_msg_inf_13(struct sr_dev_inst *sdi)
dgt = bc(devc->buf[5 + cnt]);
if (dgt == 10) { /* Overload */
devc->value = NAN;
devc->scale = 1.0;
devc->scale = 0;
break;
}
devc->value += pow(10.0, cnt) * dgt;
}
sr_spew("process_msg_inf_13() value=%f scale=%f scale1000=%d mq=%d "
sr_spew("process_msg_inf_13() value=%f scale=%d scale1000=%d mq=%d "
"unit=%d mqflags=0x%02" PRIx64, devc->value, devc->scale,
devc->scale1000, devc->mq, devc->unit, (uint64_t)devc->mqflags);
if (devc->value != NAN)
devc->value *= devc->scale * pow(1000.0, devc->scale1000);
devc->value *= pow(10, devc->scale) * pow(1000.0, devc->scale1000);
/* Byte 12, Send Interval */
sr_spew("Send interval: %s", decode_send_interval(bc(devc->buf[12])));
@ -1067,7 +1069,7 @@ SR_PRIV int process_msg14(struct sr_dev_inst *sdi)
dgt = bc(devc->buf[7 + cnt]);
if (dgt == 10) { /* Overload */
devc->value = NAN;
devc->scale = 1.0;
devc->scale = 0;
break;
}
else if (dgt == 13) { /* FUSE */
@ -1076,16 +1078,16 @@ SR_PRIV int process_msg14(struct sr_dev_inst *sdi)
else if (dgt == 14) { /* Function recognition mode, OPEN */
sr_info("Function recognition mode, OPEN!");
devc->value = NAN;
devc->scale = 1.0;
devc->scale = 0;
break;
}
devc->value += pow(10.0, cnt) * dgt;
}
sr_spew("process_msg14() value=%f scale=%f scale1000=%d mq=%d "
sr_spew("process_msg14() value=%f scale=%d scale1000=%d mq=%d "
"unit=%d mqflags=0x%02" PRIx64, devc->value, devc->scale,
devc->scale1000, devc->mq, devc->unit, (uint64_t)devc->mqflags);
if (devc->value != NAN)
devc->value *= devc->scale * pow(1000.0, devc->scale1000);
devc->value *= pow(10, devc->scale) * pow(1000.0, devc->scale1000);
send_value(sdi);

2
src/hardware/gmc-mh-1x-2x/protocol.h
View File

@ -97,7 +97,7 @@ struct dev_context {
enum sr_unit unit; /**< Measured unit */
enum sr_mqflag mqflags; /**< Measured quantity flags */
float value; /**< Measured value */
float scale; /**< Scale for value. */
int8_t scale; /**< Scale for value. */
int8_t scale1000; /**< Additional scale factor 1000x. */
int addr; /**< Device address (1..15). */
int cmd_idx; /**< Parameter "Idx" (Index) of current command, if required. */