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session: Convert from SR_DF_ANALOG to SR_DF_ANALOG2 automatically. 

This fixes bus #640.
This commit is contained in:
Martin Ling 2015-09-10 00:34:53 +01:00 committed by Uwe Hermann
parent 453629c137
commit ca79993bba
1 changed files with 37 additions and 0 deletions
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37
src/session.c
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@ -1081,6 +1081,43 @@ SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
return SR_ERR_BUG;
}
if (packet->type == SR_DF_ANALOG) {
/* Convert to SR_DF_ANALOG2. */
const struct sr_datafeed_analog *analog = packet->payload;
struct sr_analog_encoding encoding;
struct sr_analog_meaning meaning;
struct sr_analog_spec spec;
struct sr_datafeed_analog2 analog2;
struct sr_datafeed_packet a2_packet;
a2_packet.type = SR_DF_ANALOG2;
a2_packet.payload = &analog2;
analog2.data = analog->data;
analog2.num_samples = analog->num_samples;
analog2.encoding = &encoding;
analog2.meaning = &meaning;
analog2.spec = &spec;
encoding.unitsize = sizeof(float);
encoding.is_signed = TRUE;
encoding.is_float = TRUE;
#ifdef WORDS_BIGENDIAN
encoding.is_bigendian = TRUE;
#else
encoding.is_bigendian = FALSE;
#endif
encoding.digits = 0;
encoding.is_digits_decimal = FALSE;
encoding.scale.p = 1;
encoding.scale.q = 1;
encoding.offset.p = 0;
encoding.offset.q = 1;
meaning.mq = analog->mq;
meaning.unit = analog->unit;
meaning.mqflags = analog->mqflags;
meaning.channels = analog->channels;
spec.spec_digits = 0;
return sr_session_send(sdi, &a2_packet);
}
/*
* Pass the packet to the first transform module. If that returns
* another packet (instead of NULL), pass that packet to the next