[libsigrok.git] / src / output / analog.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <glib.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"

#define LOG_PREFIX "output/analog"

struct context {
	int num_enabled_channels;
	GPtrArray *channellist;
	int digits;
};

enum {
	DIGITS_ALL,
	DIGITS_SPEC,
};

static int init(struct sr_output *o, GHashTable *options)
{
	struct context *ctx;
	struct sr_channel *ch;
	GSList *l;
	const char *s;

	if (!o || !o->sdi)
		return SR_ERR_ARG;

	o->priv = ctx = g_malloc0(sizeof(struct context));
	s = g_variant_get_string(g_hash_table_lookup(options, "digits"), NULL);
	if (!strcmp(s, "all"))
		ctx->digits = DIGITS_ALL;
	else
		ctx->digits = DIGITS_SPEC;

	/* Get the number of channels and their names. */
	ctx->channellist = g_ptr_array_new();
	for (l = o->sdi->channels; l; l = l->next) {
		ch = l->data;
		if (!ch || !ch->enabled)
			continue;
		g_ptr_array_add(ctx->channellist, ch->name);
		ctx->num_enabled_channels++;
	}

	return SR_OK;
}

static void si_printf(float value, GString *out, char *unitstr)
{
	float v;

	if (signbit(value))
		v = -(value);
	else
		v = value;

	if (v < 1e-12 || v > 1e+12)
		g_string_append_printf(out, "%f %s", value, unitstr);
	else if (v > 1e+9)
		g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
	else if (v > 1e+6)
		g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
	else if (v > 1e+3)
		g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
	else if (v < 1e-9)
		g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
	else if (v < 1e-6)
		g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
	else if (v < 1e-3)
		g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
	else
		g_string_append_printf(out, "%f %s", value, unitstr);

}

/* Please use the same order as in enum sr_unit (libsigrok.h). */
static void fancyprint(int unit, int mqflags, float value, GString *out)
{
	switch (unit) {
	case SR_UNIT_VOLT:
		si_printf(value, out, "V");
		break;
	case SR_UNIT_AMPERE:
		si_printf(value, out, "A");
		break;
	case SR_UNIT_OHM:
		si_printf(value, out, "");
		g_string_append_unichar(out, 0x2126);
		break;
	case SR_UNIT_FARAD:
		si_printf(value, out, "F");
		break;
	case SR_UNIT_KELVIN:
		si_printf(value, out, "K");
		break;
	case SR_UNIT_CELSIUS:
		si_printf(value, out, "");
		g_string_append_unichar(out, 0x00b0);
		g_string_append_c(out, 'C');
		break;
	case SR_UNIT_FAHRENHEIT:
		si_printf(value, out, "");
		g_string_append_unichar(out, 0x00b0);
		g_string_append_c(out, 'F');
		break;
	case SR_UNIT_HERTZ:
		si_printf(value, out, "Hz");
		break;
	case SR_UNIT_PERCENTAGE:
		g_string_append_printf(out, "%f %%", value);
		break;
	case SR_UNIT_BOOLEAN:
		if (value > 0)
			g_string_append_printf(out, "TRUE");
		else
			g_string_append_printf(out, "FALSE");
		break;
	case SR_UNIT_SECOND:
		si_printf(value, out, "s");
		break;
	case SR_UNIT_SIEMENS:
		si_printf(value, out, "S");
		break;
	case SR_UNIT_DECIBEL_MW:
		si_printf(value, out, "dBu");
		break;
	case SR_UNIT_DECIBEL_VOLT:
		si_printf(value, out, "dBV");
		break;
	case SR_UNIT_UNITLESS:
		si_printf(value, out, "");
		break;
	case SR_UNIT_DECIBEL_SPL:
		if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
			si_printf(value, out, "dB(A)");
		else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
			si_printf(value, out, "dB(C)");
		else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
			si_printf(value, out, "dB(Z)");
		else
			/* No frequency weighting, or non-standard "flat" */
			si_printf(value, out, "dB(SPL)");
		if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
			g_string_append(out, " S");
		else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
			g_string_append(out, " F");
		if (mqflags & SR_MQFLAG_SPL_LAT)
			g_string_append(out, " LAT");
		else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
			/* Not a standard function for SLMs, so this is
			 * a made-up notation. */
			g_string_append(out, " %oA");
		break;
	case SR_UNIT_CONCENTRATION:
		g_string_append_printf(out, "%f ppm", value * (1000 * 1000));
		break;
	case SR_UNIT_REVOLUTIONS_PER_MINUTE:
		si_printf(value, out, "RPM");
		break;
	case SR_UNIT_VOLT_AMPERE:
		si_printf(value, out, "VA");
		break;
	case SR_UNIT_WATT:
		si_printf(value, out, "W");
		break;
	case SR_UNIT_WATT_HOUR:
		si_printf(value, out, "Wh");
		break;
	case SR_UNIT_METER_SECOND:
		si_printf(value, out, "m/s");
		break;
	case SR_UNIT_HECTOPASCAL:
		si_printf(value, out, "hPa");
		break;
	case SR_UNIT_HUMIDITY_293K:
		si_printf(value, out, "%rF");
		break;
	case SR_UNIT_DEGREE:
		si_printf(value, out, "");
		g_string_append_unichar(out, 0x00b0);
		break;
	case SR_UNIT_HENRY:
		si_printf(value, out, "H");
		break;
	case SR_UNIT_GRAM:
		si_printf(value, out, "g");
		break;
	case SR_UNIT_CARAT:
		si_printf(value, out, "ct");
		break;
	case SR_UNIT_OUNCE:
		si_printf(value, out, "oz");
		break;
	case SR_UNIT_TROY_OUNCE:
		si_printf(value, out, "oz t");
		break;
	case SR_UNIT_POUND:
		si_printf(value, out, "lb");
		break;
	case SR_UNIT_PENNYWEIGHT:
		si_printf(value, out, "dwt");
		break;
	case SR_UNIT_GRAIN:
		si_printf(value, out, "gr");
		break;
	case SR_UNIT_TAEL:
		si_printf(value, out, "tael");
		break;
	case SR_UNIT_MOMME:
		si_printf(value, out, "momme");
		break;
	case SR_UNIT_TOLA:
		si_printf(value, out, "tola");
		break;
	case SR_UNIT_PIECE:
		si_printf(value, out, "pcs");
		break;
	default:
		si_printf(value, out, "");
		break;
	}

	/* Please use the same order as in enum sr_mqflag (libsigrok.h). */
	if (mqflags & SR_MQFLAG_AC)
		g_string_append_printf(out, " AC");
	if (mqflags & SR_MQFLAG_DC)
		g_string_append_printf(out, " DC");
	if (mqflags & SR_MQFLAG_RMS)
		g_string_append_printf(out, " RMS");
	if (mqflags & SR_MQFLAG_DIODE)
		g_string_append_printf(out, " DIODE");
	if (mqflags & SR_MQFLAG_HOLD)
		g_string_append_printf(out, " HOLD");
	if (mqflags & SR_MQFLAG_MAX)
		g_string_append_printf(out, " MAX");
	if (mqflags & SR_MQFLAG_MIN)
		g_string_append_printf(out, " MIN");
	if (mqflags & SR_MQFLAG_AUTORANGE)
		g_string_append_printf(out, " AUTO");
	if (mqflags & SR_MQFLAG_RELATIVE)
		g_string_append_printf(out, " REL");
	/* Note: SR_MQFLAG_SPL_* is handled above. */
	if (mqflags & SR_MQFLAG_DURATION)
		g_string_append_printf(out, " DURATION");
	if (mqflags & SR_MQFLAG_AVG)
		g_string_append_printf(out, " AVG");
	if (mqflags & SR_MQFLAG_REFERENCE)
		g_string_append_printf(out, " REF");
	if (mqflags & SR_MQFLAG_UNSTABLE)
		g_string_append_printf(out, " UNSTABLE");
	g_string_append_c(out, '\n');
}

static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
		GString **out)
{
	struct context *ctx;
	const struct sr_datafeed_analog *analog;
	const struct sr_datafeed_analog2 *analog2;
	struct sr_channel *ch;
	GSList *l;
	float *fdata;
	unsigned int i;
	int num_channels, c, ret, si, digits;
	char *number, *suffix;

	*out = NULL;
	if (!o || !o->sdi)
		return SR_ERR_ARG;
	ctx = o->priv;

	switch (packet->type) {
	case SR_DF_FRAME_BEGIN:
		*out = g_string_new("FRAME-BEGIN\n");
		break;
	case SR_DF_FRAME_END:
		*out = g_string_new("FRAME-END\n");
		break;
	case SR_DF_ANALOG:
		analog = packet->payload;
		fdata = (float *)analog->data;
		*out = g_string_sized_new(512);
		num_channels = g_slist_length(analog->channels);
		for (si = 0; si < analog->num_samples; si++) {
			for (l = analog->channels, c = 0; l; l = l->next, c++) {
				ch = l->data;
				g_string_append_printf(*out, "%s: ", ch->name);
				fancyprint(analog->unit, analog->mqflags,
						fdata[si * num_channels + c], *out);
			}
		}
		break;
	case SR_DF_ANALOG2:
		analog2 = packet->payload;
		if (!(fdata = g_try_malloc(analog2->num_samples * sizeof(float))))
			return SR_ERR_MALLOC;
		if ((ret = sr_analog_to_float(analog2, fdata)) != SR_OK)
			return ret;
		*out = g_string_sized_new(512);
		if (analog2->encoding->is_digits_decimal) {
			if (ctx->digits == DIGITS_ALL)
				digits = analog2->encoding->digits;
			else
				digits = analog2->spec->spec_digits;
		} else {
			/* TODO we don't know how to print by number of bits yet. */
			digits = 6;
		}
		sr_analog_unit_to_string(analog2, &suffix);
		num_channels = g_slist_length(analog2->meaning->channels);
		for (i = 0; i < analog2->num_samples; i++) {
			for (l = analog2->meaning->channels, c = 0; l; l = l->next, c++) {
				ch = l->data;
				g_string_append_printf(*out, "%s: ", ch->name);
				sr_analog_float_to_string(fdata[i * num_channels + c],
						digits, &number);
				g_string_append(*out, number);
				g_free(number);
				g_string_append(*out, " ");
				g_string_append(*out, suffix);
				g_string_append(*out, "\n");
			}
		}
		g_free(suffix);
		break;
	}

	return SR_OK;
}

static int cleanup(struct sr_output *o)
{
	struct context *ctx;

	if (!o || !o->sdi)
		return SR_ERR_ARG;
	ctx = o->priv;

	g_ptr_array_free(ctx->channellist, 1);
	g_free(ctx);
	o->priv = NULL;

	return SR_OK;
}

static struct sr_option options[] = {
	{ "digits", "Digits", "Digits to show", NULL, NULL },
	ALL_ZERO
};

static const struct sr_option *get_options(void)
{
	if (!options[0].def) {
		options[0].def = g_variant_ref_sink(g_variant_new_string("all"));
		options[0].values = g_slist_append(options[0].values,
				g_variant_ref_sink(g_variant_new_string("all")));
		options[0].values = g_slist_append(options[0].values,
				g_variant_ref_sink(g_variant_new_string("spec")));
	}

	return options;
}

SR_PRIV struct sr_output_module output_analog = {
	.id = "analog",
	.name = "Analog",
	.desc = "Analog data and types",
	.exts = NULL,
	.flags = 0,
	.options = get_options,
	.init = init,
	.receive = receive,
	.cleanup = cleanup
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
	5	*
	6	* This program is free software: you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation, either version 3 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <stdlib.h>
	21	#include <string.h>
	22	#include <math.h>
	23	#include <glib.h>
	24	#include <libsigrok/libsigrok.h>
	25	#include "libsigrok-internal.h"
	26
	27	#define LOG_PREFIX "output/analog"
	28
	29	struct context {
	30	int num_enabled_channels;
	31	GPtrArray *channellist;
	32	int digits;
	33	};
	34
	35	enum {
	36	DIGITS_ALL,
	37	DIGITS_SPEC,
	38	};
	39
	40	static int init(struct sr_output o, GHashTable options)
	41	{
	42	struct context *ctx;
	43	struct sr_channel *ch;
	44	GSList *l;
	45	const char *s;
	46
	47	if (!o \|\| !o->sdi)
	48	return SR_ERR_ARG;
	49
	50	o->priv = ctx = g_malloc0(sizeof(struct context));
	51	s = g_variant_get_string(g_hash_table_lookup(options, "digits"), NULL);
	52	if (!strcmp(s, "all"))
	53	ctx->digits = DIGITS_ALL;
	54	else
	55	ctx->digits = DIGITS_SPEC;
	56
	57	/* Get the number of channels and their names. */
	58	ctx->channellist = g_ptr_array_new();
	59	for (l = o->sdi->channels; l; l = l->next) {
	60	ch = l->data;
	61	if (!ch \|\| !ch->enabled)
	62	continue;
	63	g_ptr_array_add(ctx->channellist, ch->name);
	64	ctx->num_enabled_channels++;
	65	}
	66
	67	return SR_OK;
	68	}
	69
	70	static void si_printf(float value, GString out, char unitstr)
	71	{
	72	float v;
	73
	74	if (signbit(value))
	75	v = -(value);
	76	else
	77	v = value;
	78
	79	if (v < 1e-12 \|\| v > 1e+12)
	80	g_string_append_printf(out, "%f %s", value, unitstr);
	81	else if (v > 1e+9)
	82	g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
	83	else if (v > 1e+6)
	84	g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
	85	else if (v > 1e+3)
	86	g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
	87	else if (v < 1e-9)
	88	g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
	89	else if (v < 1e-6)
	90	g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
	91	else if (v < 1e-3)
	92	g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
	93	else
	94	g_string_append_printf(out, "%f %s", value, unitstr);
	95
	96	}
	97
	98	/* Please use the same order as in enum sr_unit (libsigrok.h). */
	99	static void fancyprint(int unit, int mqflags, float value, GString *out)
	100	{
	101	switch (unit) {
	102	case SR_UNIT_VOLT:
	103	si_printf(value, out, "V");
	104	break;
	105	case SR_UNIT_AMPERE:
	106	si_printf(value, out, "A");
	107	break;
	108	case SR_UNIT_OHM:
	109	si_printf(value, out, "");
	110	g_string_append_unichar(out, 0x2126);
	111	break;
	112	case SR_UNIT_FARAD:
	113	si_printf(value, out, "F");
	114	break;
	115	case SR_UNIT_KELVIN:
	116	si_printf(value, out, "K");
	117	break;
	118	case SR_UNIT_CELSIUS:
	119	si_printf(value, out, "");
	120	g_string_append_unichar(out, 0x00b0);
	121	g_string_append_c(out, 'C');
	122	break;
	123	case SR_UNIT_FAHRENHEIT:
	124	si_printf(value, out, "");
	125	g_string_append_unichar(out, 0x00b0);
	126	g_string_append_c(out, 'F');
	127	break;
	128	case SR_UNIT_HERTZ:
	129	si_printf(value, out, "Hz");
	130	break;
	131	case SR_UNIT_PERCENTAGE:
	132	g_string_append_printf(out, "%f %%", value);
	133	break;
	134	case SR_UNIT_BOOLEAN:
	135	if (value > 0)
	136	g_string_append_printf(out, "TRUE");
	137	else
	138	g_string_append_printf(out, "FALSE");
	139	break;
	140	case SR_UNIT_SECOND:
	141	si_printf(value, out, "s");
	142	break;
	143	case SR_UNIT_SIEMENS:
	144	si_printf(value, out, "S");
	145	break;
	146	case SR_UNIT_DECIBEL_MW:
	147	si_printf(value, out, "dBu");
	148	break;
	149	case SR_UNIT_DECIBEL_VOLT:
	150	si_printf(value, out, "dBV");
	151	break;
	152	case SR_UNIT_UNITLESS:
	153	si_printf(value, out, "");
	154	break;
	155	case SR_UNIT_DECIBEL_SPL:
	156	if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
	157	si_printf(value, out, "dB(A)");
	158	else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
	159	si_printf(value, out, "dB(C)");
	160	else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
	161	si_printf(value, out, "dB(Z)");
	162	else
	163	/* No frequency weighting, or non-standard "flat" */
	164	si_printf(value, out, "dB(SPL)");
	165	if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
	166	g_string_append(out, " S");
	167	else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
	168	g_string_append(out, " F");
	169	if (mqflags & SR_MQFLAG_SPL_LAT)
	170	g_string_append(out, " LAT");
	171	else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
	172	/* Not a standard function for SLMs, so this is
	173	* a made-up notation. */
	174	g_string_append(out, " %oA");
	175	break;
	176	case SR_UNIT_CONCENTRATION:
	177	g_string_append_printf(out, "%f ppm", value * (1000 * 1000));
	178	break;
	179	case SR_UNIT_REVOLUTIONS_PER_MINUTE:
	180	si_printf(value, out, "RPM");
	181	break;
	182	case SR_UNIT_VOLT_AMPERE:
	183	si_printf(value, out, "VA");
	184	break;
	185	case SR_UNIT_WATT:
	186	si_printf(value, out, "W");
	187	break;
	188	case SR_UNIT_WATT_HOUR:
	189	si_printf(value, out, "Wh");
	190	break;
	191	case SR_UNIT_METER_SECOND:
	192	si_printf(value, out, "m/s");
	193	break;
	194	case SR_UNIT_HECTOPASCAL:
	195	si_printf(value, out, "hPa");
	196	break;
	197	case SR_UNIT_HUMIDITY_293K:
	198	si_printf(value, out, "%rF");
	199	break;
	200	case SR_UNIT_DEGREE:
	201	si_printf(value, out, "");
	202	g_string_append_unichar(out, 0x00b0);
	203	break;
	204	case SR_UNIT_HENRY:
	205	si_printf(value, out, "H");
	206	break;
	207	case SR_UNIT_GRAM:
	208	si_printf(value, out, "g");
	209	break;
	210	case SR_UNIT_CARAT:
	211	si_printf(value, out, "ct");
	212	break;
	213	case SR_UNIT_OUNCE:
	214	si_printf(value, out, "oz");
	215	break;
	216	case SR_UNIT_TROY_OUNCE:
	217	si_printf(value, out, "oz t");
	218	break;
	219	case SR_UNIT_POUND:
	220	si_printf(value, out, "lb");
	221	break;
	222	case SR_UNIT_PENNYWEIGHT:
	223	si_printf(value, out, "dwt");
	224	break;
	225	case SR_UNIT_GRAIN:
	226	si_printf(value, out, "gr");
	227	break;
	228	case SR_UNIT_TAEL:
	229	si_printf(value, out, "tael");
	230	break;
	231	case SR_UNIT_MOMME:
	232	si_printf(value, out, "momme");
	233	break;
	234	case SR_UNIT_TOLA:
	235	si_printf(value, out, "tola");
	236	break;
	237	case SR_UNIT_PIECE:
	238	si_printf(value, out, "pcs");
	239	break;
	240	default:
	241	si_printf(value, out, "");
	242	break;
	243	}
	244
	245	/* Please use the same order as in enum sr_mqflag (libsigrok.h). */
	246	if (mqflags & SR_MQFLAG_AC)
	247	g_string_append_printf(out, " AC");
	248	if (mqflags & SR_MQFLAG_DC)
	249	g_string_append_printf(out, " DC");
	250	if (mqflags & SR_MQFLAG_RMS)
	251	g_string_append_printf(out, " RMS");
	252	if (mqflags & SR_MQFLAG_DIODE)
	253	g_string_append_printf(out, " DIODE");
	254	if (mqflags & SR_MQFLAG_HOLD)
	255	g_string_append_printf(out, " HOLD");
	256	if (mqflags & SR_MQFLAG_MAX)
	257	g_string_append_printf(out, " MAX");
	258	if (mqflags & SR_MQFLAG_MIN)
	259	g_string_append_printf(out, " MIN");
	260	if (mqflags & SR_MQFLAG_AUTORANGE)
	261	g_string_append_printf(out, " AUTO");
	262	if (mqflags & SR_MQFLAG_RELATIVE)
	263	g_string_append_printf(out, " REL");
	264	/* Note: SR_MQFLAG_SPL_* is handled above. */
	265	if (mqflags & SR_MQFLAG_DURATION)
	266	g_string_append_printf(out, " DURATION");
	267	if (mqflags & SR_MQFLAG_AVG)
	268	g_string_append_printf(out, " AVG");
	269	if (mqflags & SR_MQFLAG_REFERENCE)
	270	g_string_append_printf(out, " REF");
	271	if (mqflags & SR_MQFLAG_UNSTABLE)
	272	g_string_append_printf(out, " UNSTABLE");
	273	g_string_append_c(out, '\n');
	274	}
	275
	276	static int receive(const struct sr_output o, const struct sr_datafeed_packet packet,
	277	GString **out)
	278	{
	279	struct context *ctx;
	280	const struct sr_datafeed_analog *analog;
	281	const struct sr_datafeed_analog2 *analog2;
	282	struct sr_channel *ch;
	283	GSList *l;
	284	float *fdata;
	285	unsigned int i;
	286	int num_channels, c, ret, si, digits;
	287	char number, suffix;
	288
	289	*out = NULL;
	290	if (!o \|\| !o->sdi)
	291	return SR_ERR_ARG;
	292	ctx = o->priv;
	293
	294	switch (packet->type) {
	295	case SR_DF_FRAME_BEGIN:
	296	*out = g_string_new("FRAME-BEGIN\n");
	297	break;
	298	case SR_DF_FRAME_END:
	299	*out = g_string_new("FRAME-END\n");
	300	break;
	301	case SR_DF_ANALOG:
	302	analog = packet->payload;
	303	fdata = (float *)analog->data;
	304	*out = g_string_sized_new(512);
	305	num_channels = g_slist_length(analog->channels);
	306	for (si = 0; si < analog->num_samples; si++) {
	307	for (l = analog->channels, c = 0; l; l = l->next, c++) {
	308	ch = l->data;
	309	g_string_append_printf(*out, "%s: ", ch->name);
	310	fancyprint(analog->unit, analog->mqflags,
	311	fdata[si * num_channels + c], *out);
	312	}
	313	}
	314	break;
	315	case SR_DF_ANALOG2:
	316	analog2 = packet->payload;
	317	if (!(fdata = g_try_malloc(analog2->num_samples * sizeof(float))))
	318	return SR_ERR_MALLOC;
	319	if ((ret = sr_analog_to_float(analog2, fdata)) != SR_OK)
	320	return ret;
	321	*out = g_string_sized_new(512);
	322	if (analog2->encoding->is_digits_decimal) {
	323	if (ctx->digits == DIGITS_ALL)
	324	digits = analog2->encoding->digits;
	325	else
	326	digits = analog2->spec->spec_digits;
	327	} else {
	328	/* TODO we don't know how to print by number of bits yet. */
	329	digits = 6;
	330	}
	331	sr_analog_unit_to_string(analog2, &suffix);
	332	num_channels = g_slist_length(analog2->meaning->channels);
	333	for (i = 0; i < analog2->num_samples; i++) {
	334	for (l = analog2->meaning->channels, c = 0; l; l = l->next, c++) {
	335	ch = l->data;
	336	g_string_append_printf(*out, "%s: ", ch->name);
	337	sr_analog_float_to_string(fdata[i * num_channels + c],
	338	digits, &number);
	339	g_string_append(*out, number);
	340	g_free(number);
	341	g_string_append(*out, " ");
	342	g_string_append(*out, suffix);
	343	g_string_append(*out, "\n");
	344	}
	345	}
	346	g_free(suffix);
	347	break;
	348	}
	349
	350	return SR_OK;
	351	}
	352
	353	static int cleanup(struct sr_output *o)
	354	{
	355	struct context *ctx;
	356
	357	if (!o \|\| !o->sdi)
	358	return SR_ERR_ARG;
	359	ctx = o->priv;
	360
	361	g_ptr_array_free(ctx->channellist, 1);
	362	g_free(ctx);
	363	o->priv = NULL;
	364
	365	return SR_OK;
	366	}
	367
	368	static struct sr_option options[] = {
	369	{ "digits", "Digits", "Digits to show", NULL, NULL },
	370	ALL_ZERO
	371	};
	372
	373	static const struct sr_option *get_options(void)
	374	{
	375	if (!options[0].def) {
	376	options[0].def = g_variant_ref_sink(g_variant_new_string("all"));
	377	options[0].values = g_slist_append(options[0].values,
	378	g_variant_ref_sink(g_variant_new_string("all")));
	379	options[0].values = g_slist_append(options[0].values,
	380	g_variant_ref_sink(g_variant_new_string("spec")));
	381	}
	382
	383	return options;
	384	}
	385
	386	SR_PRIV struct sr_output_module output_analog = {
	387	.id = "analog",
	388	.name = "Analog",
	389	.desc = "Analog data and types",
	390	.exts = NULL,
	391	.flags = 0,
	392	.options = get_options,
	393	.init = init,
	394	.receive = receive,
	395	.cleanup = cleanup
	396	};