X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fanalog.c;h=d2677a576065ab5c9b81fe899a5f828da8dfd891;hb=7d65dd3a8654ff303c76b917865941e3ae379458;hp=01704fd7b5ba893e71e397a4ed1bf531b80c898e;hpb=90cefe0cc7d498ed8a8c7cdb1e95c16296ca5059;p=libsigrok.git diff --git a/src/analog.c b/src/analog.c index 01704fd7..d2677a57 100644 --- a/src/analog.c +++ b/src/analog.c @@ -17,35 +17,54 @@ * along with this program. If not, see . */ +#include #include #include #include #include -#include "libsigrok.h" +#include #include "libsigrok-internal.h" +/** @cond PRIVATE */ #define LOG_PREFIX "analog" +/** @endcond */ + +/** + * @file + * + * Handling and converting analog data. + */ + +/** + * @defgroup grp_analog Analog data handling + * + * Handling and converting analog data. + * + * @{ + */ struct unit_mq_string { uint64_t value; char *str; }; +/* Please use the same order as in enum sr_unit (libsigrok.h). */ static struct unit_mq_string unit_strings[] = { { SR_UNIT_VOLT, "V" }, { SR_UNIT_AMPERE, "A" }, { SR_UNIT_OHM, "\xe2\x84\xa6" }, { SR_UNIT_FARAD, "F" }, - { SR_UNIT_HENRY, "H" }, { SR_UNIT_KELVIN, "K" }, { SR_UNIT_CELSIUS, "\xc2\xb0""C" }, { SR_UNIT_FAHRENHEIT, "\xc2\xb0""F" }, { SR_UNIT_HERTZ, "Hz" }, { SR_UNIT_PERCENTAGE, "%" }, + { SR_UNIT_BOOLEAN, "" }, { SR_UNIT_SECOND, "s" }, { SR_UNIT_SIEMENS, "S" }, { SR_UNIT_DECIBEL_MW, "dBu" }, { SR_UNIT_DECIBEL_VOLT, "dBv" }, + { SR_UNIT_UNITLESS, "" }, { SR_UNIT_DECIBEL_SPL, "dB" }, { SR_UNIT_CONCENTRATION, "ppm" }, { SR_UNIT_REVOLUTIONS_PER_MINUTE, "RPM" }, @@ -56,19 +75,23 @@ static struct unit_mq_string unit_strings[] = { { SR_UNIT_HECTOPASCAL, "hPa" }, { SR_UNIT_HUMIDITY_293K, "%rF" }, { SR_UNIT_DEGREE, "\xc2\xb0" }, + { SR_UNIT_HENRY, "H" }, + { SR_UNIT_GRAM, "g" }, + { SR_UNIT_CARAT, "ct" }, + { SR_UNIT_OUNCE, "oz" }, + { SR_UNIT_TROY_OUNCE, "oz t" }, + { SR_UNIT_POUND, "lb" }, + { SR_UNIT_PENNYWEIGHT, "dwt" }, + { SR_UNIT_GRAIN, "gr" }, + { SR_UNIT_TAEL, "tael" }, + { SR_UNIT_MOMME, "momme" }, + { SR_UNIT_TOLA, "tola" }, + { SR_UNIT_PIECE, "pcs" }, ALL_ZERO }; +/* Please use the same order as in enum sr_mqflag (libsigrok.h). */ static struct unit_mq_string mq_strings[] = { - { SR_MQFLAG_SPL_FREQ_WEIGHT_A, "(A)" }, - { SR_MQFLAG_SPL_FREQ_WEIGHT_C, "(C)" }, - { SR_MQFLAG_SPL_FREQ_WEIGHT_Z, "(Z)" }, - { SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT, "(SPL)" }, - { SR_MQFLAG_SPL_TIME_WEIGHT_S, " S" }, - { SR_MQFLAG_SPL_TIME_WEIGHT_F, " F" }, - { SR_MQFLAG_SPL_LAT, " LAT" }, - /* Not a standard function for SLMs, so this is a made-up notation. */ - { SR_MQFLAG_SPL_PCT_OVER_ALARM, "%oA" }, { SR_MQFLAG_AC, " AC" }, { SR_MQFLAG_DC, " DC" }, { SR_MQFLAG_RMS, " RMS" }, @@ -78,8 +101,19 @@ static struct unit_mq_string mq_strings[] = { { SR_MQFLAG_MIN, " MIN" }, { SR_MQFLAG_AUTORANGE, " AUTO" }, { SR_MQFLAG_RELATIVE, " REL" }, + { SR_MQFLAG_SPL_FREQ_WEIGHT_A, "(A)" }, + { SR_MQFLAG_SPL_FREQ_WEIGHT_C, "(C)" }, + { SR_MQFLAG_SPL_FREQ_WEIGHT_Z, "(Z)" }, + { SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT, "(SPL)" }, + { SR_MQFLAG_SPL_TIME_WEIGHT_S, " S" }, + { SR_MQFLAG_SPL_TIME_WEIGHT_F, " F" }, + { SR_MQFLAG_SPL_LAT, " LAT" }, + /* Not a standard function for SLMs, so this is a made-up notation. */ + { SR_MQFLAG_SPL_PCT_OVER_ALARM, "%oA" }, + { SR_MQFLAG_DURATION, " DURATION" }, { SR_MQFLAG_AVG, " AVG" }, { SR_MQFLAG_REFERENCE, " REF" }, + { SR_MQFLAG_UNSTABLE, " UNSTABLE" }, ALL_ZERO }; @@ -123,6 +157,8 @@ SR_API int sr_analog_to_float(const struct sr_datafeed_analog2 *analog, float offset; unsigned int b, i; gboolean bigendian; + unsigned int count = (analog->num_samples + * g_slist_length(analog->meaning->channels)); #ifdef WORDS_BIGENDIAN bigendian = TRUE; @@ -140,14 +176,16 @@ SR_API int sr_analog_to_float(const struct sr_datafeed_analog2 *analog, && (analog->encoding->scale.p == analog->encoding->scale.q) && analog->encoding->offset.p / (float)analog->encoding->offset.q == 0) { /* The data is already in the right format. */ - memcpy(outbuf, analog->data, analog->num_samples * sizeof(float)); + memcpy(outbuf, analog->data, count * sizeof(float)); } else { - for (i = 0; i < analog->num_samples; i += analog->encoding->unitsize) { + for (i = 0; i < count; i += analog->encoding->unitsize) { for (b = 0; b < analog->encoding->unitsize; b++) { if (analog->encoding->is_bigendian == bigendian) - outbuf[i + b] = ((float *)analog->data)[i * analog->encoding->unitsize + b]; + ((uint8_t *)outbuf)[i + b] = + ((uint8_t *)analog->data)[i * analog->encoding->unitsize + b]; else - outbuf[i + (analog->encoding->unitsize - b)] = ((float *)analog->data)[i * analog->encoding->unitsize + b]; + ((uint8_t *)outbuf)[i + (analog->encoding->unitsize - b)] = + ((uint8_t *)analog->data)[i * analog->encoding->unitsize + b]; } if (analog->encoding->scale.p != analog->encoding->scale.q) outbuf[i] = (outbuf[i] * analog->encoding->scale.p) / analog->encoding->scale.q; @@ -235,9 +273,10 @@ SR_API int sr_analog_unit_to_string(const struct sr_datafeed_analog2 *analog, * @param p Numerator * @param q Denominator */ -SR_API inline void sr_rational_set(struct sr_rational *r, uint64_t p, uint64_t q) +SR_API void sr_rational_set(struct sr_rational *r, uint64_t p, uint64_t q) { r->p = p; r->q = q; } +/** @} */