389 lines
9.8 KiB
C
389 lines
9.8 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <glib.h>
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#include <libsigrok/libsigrok.h>
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "output/analog"
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struct context {
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int num_enabled_channels;
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GPtrArray *channellist;
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int digits;
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};
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enum {
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DIGITS_ALL,
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DIGITS_SPEC,
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};
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static int init(struct sr_output *o, GHashTable *options)
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{
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struct context *ctx;
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struct sr_channel *ch;
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GSList *l;
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const char *s;
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if (!o || !o->sdi)
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return SR_ERR_ARG;
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o->priv = ctx = g_malloc0(sizeof(struct context));
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s = g_variant_get_string(g_hash_table_lookup(options, "digits"), NULL);
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if (!strcmp(s, "all"))
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ctx->digits = DIGITS_ALL;
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else
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ctx->digits = DIGITS_SPEC;
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/* Get the number of channels and their names. */
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ctx->channellist = g_ptr_array_new();
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for (l = o->sdi->channels; l; l = l->next) {
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ch = l->data;
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if (!ch || !ch->enabled)
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continue;
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g_ptr_array_add(ctx->channellist, ch->name);
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ctx->num_enabled_channels++;
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}
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return SR_OK;
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}
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static void si_printf(float value, GString *out, char *unitstr)
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{
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float v;
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if (signbit(value))
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v = -(value);
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else
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v = value;
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if (v < 1e-12 || v > 1e+12)
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g_string_append_printf(out, "%f %s", value, unitstr);
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else if (v > 1e+9)
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g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
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else if (v > 1e+6)
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g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
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else if (v > 1e+3)
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g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
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else if (v < 1e-9)
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g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
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else if (v < 1e-6)
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g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
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else if (v < 1e-3)
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g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
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else
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g_string_append_printf(out, "%f %s", value, unitstr);
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}
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static void fancyprint(int unit, int mqflags, float value, GString *out)
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{
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switch (unit) {
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case SR_UNIT_VOLT:
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si_printf(value, out, "V");
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break;
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case SR_UNIT_AMPERE:
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si_printf(value, out, "A");
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break;
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case SR_UNIT_OHM:
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si_printf(value, out, "");
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g_string_append_unichar(out, 0x2126);
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break;
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case SR_UNIT_FARAD:
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si_printf(value, out, "F");
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break;
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case SR_UNIT_HENRY:
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si_printf(value, out, "H");
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break;
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case SR_UNIT_KELVIN:
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si_printf(value, out, "K");
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break;
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case SR_UNIT_CELSIUS:
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si_printf(value, out, "");
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g_string_append_unichar(out, 0x00b0);
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g_string_append_c(out, 'C');
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break;
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case SR_UNIT_FAHRENHEIT:
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si_printf(value, out, "");
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g_string_append_unichar(out, 0x00b0);
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g_string_append_c(out, 'F');
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break;
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case SR_UNIT_HERTZ:
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si_printf(value, out, "Hz");
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break;
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case SR_UNIT_PERCENTAGE:
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g_string_append_printf(out, "%f %%", value);
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break;
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case SR_UNIT_BOOLEAN:
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if (value > 0)
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g_string_append_printf(out, "TRUE");
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else
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g_string_append_printf(out, "FALSE");
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break;
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case SR_UNIT_SECOND:
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si_printf(value, out, "s");
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break;
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case SR_UNIT_SIEMENS:
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si_printf(value, out, "S");
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break;
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case SR_UNIT_DECIBEL_MW:
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si_printf(value, out, "dBu");
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break;
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case SR_UNIT_DECIBEL_VOLT:
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si_printf(value, out, "dBV");
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break;
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case SR_UNIT_DECIBEL_SPL:
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if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
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si_printf(value, out, "dB(A)");
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else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
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si_printf(value, out, "dB(C)");
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else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
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si_printf(value, out, "dB(Z)");
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else
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/* No frequency weighting, or non-standard "flat" */
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si_printf(value, out, "dB(SPL)");
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if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
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g_string_append(out, " S");
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else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
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g_string_append(out, " F");
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if (mqflags & SR_MQFLAG_SPL_LAT)
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g_string_append(out, " LAT");
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else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
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/* Not a standard function for SLMs, so this is
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* a made-up notation. */
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g_string_append(out, " %oA");
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break;
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case SR_UNIT_CONCENTRATION:
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g_string_append_printf(out, "%f ppm", value * (1000 * 1000));
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break;
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case SR_UNIT_REVOLUTIONS_PER_MINUTE:
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si_printf(value, out, "RPM");
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break;
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case SR_UNIT_VOLT_AMPERE:
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si_printf(value, out, "VA");
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break;
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case SR_UNIT_WATT:
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si_printf(value, out, "W");
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break;
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case SR_UNIT_WATT_HOUR:
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si_printf(value, out, "Wh");
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break;
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case SR_UNIT_METER_SECOND:
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si_printf(value, out, "m/s");
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break;
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case SR_UNIT_HECTOPASCAL:
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si_printf(value, out, "hPa");
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break;
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case SR_UNIT_HUMIDITY_293K:
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si_printf(value, out, "%rF");
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break;
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case SR_UNIT_DEGREE:
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si_printf(value, out, "");
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g_string_append_unichar(out, 0x00b0);
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break;
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case SR_UNIT_GRAM:
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si_printf(value, out, "g");
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break;
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case SR_UNIT_CARAT:
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si_printf(value, out, "ct");
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break;
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case SR_UNIT_OUNCE:
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si_printf(value, out, "oz");
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break;
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case SR_UNIT_TROY_OUNCE:
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si_printf(value, out, "oz t");
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break;
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case SR_UNIT_POUND:
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si_printf(value, out, "lb");
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break;
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case SR_UNIT_PENNYWEIGHT:
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si_printf(value, out, "dwt");
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break;
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case SR_UNIT_GRAIN:
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si_printf(value, out, "gr");
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break;
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case SR_UNIT_TAEL:
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si_printf(value, out, "tael");
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break;
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case SR_UNIT_MOMME:
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si_printf(value, out, "momme");
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break;
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case SR_UNIT_TOLA:
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si_printf(value, out, "tola");
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break;
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case SR_UNIT_PIECE:
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si_printf(value, out, "pcs");
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break;
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default:
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si_printf(value, out, "");
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break;
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}
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if (mqflags & SR_MQFLAG_AC)
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g_string_append_printf(out, " AC");
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if (mqflags & SR_MQFLAG_DC)
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g_string_append_printf(out, " DC");
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if (mqflags & SR_MQFLAG_RMS)
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g_string_append_printf(out, " RMS");
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if (mqflags & SR_MQFLAG_DIODE)
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g_string_append_printf(out, " DIODE");
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if (mqflags & SR_MQFLAG_HOLD)
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g_string_append_printf(out, " HOLD");
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if (mqflags & SR_MQFLAG_MAX)
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g_string_append_printf(out, " MAX");
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if (mqflags & SR_MQFLAG_MIN)
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g_string_append_printf(out, " MIN");
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if (mqflags & SR_MQFLAG_AUTORANGE)
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g_string_append_printf(out, " AUTO");
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if (mqflags & SR_MQFLAG_RELATIVE)
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g_string_append_printf(out, " REL");
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if (mqflags & SR_MQFLAG_AVG)
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g_string_append_printf(out, " AVG");
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if (mqflags & SR_MQFLAG_REFERENCE)
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g_string_append_printf(out, " REF");
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if (mqflags & SR_MQFLAG_UNSTABLE)
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g_string_append_printf(out, " UNSTABLE");
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g_string_append_c(out, '\n');
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}
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static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
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GString **out)
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{
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struct context *ctx;
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const struct sr_datafeed_analog *analog;
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const struct sr_datafeed_analog2 *analog2;
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struct sr_channel *ch;
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GSList *l;
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float *fdata;
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unsigned int i;
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int num_channels, c, ret, si, digits;
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char *number, *suffix;
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*out = NULL;
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if (!o || !o->sdi)
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return SR_ERR_ARG;
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ctx = o->priv;
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switch (packet->type) {
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case SR_DF_FRAME_BEGIN:
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*out = g_string_new("FRAME-BEGIN\n");
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break;
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case SR_DF_FRAME_END:
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*out = g_string_new("FRAME-END\n");
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break;
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case SR_DF_ANALOG:
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analog = packet->payload;
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fdata = (float *)analog->data;
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*out = g_string_sized_new(512);
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num_channels = g_slist_length(analog->channels);
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for (si = 0; si < analog->num_samples; si++) {
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for (l = analog->channels, c = 0; l; l = l->next, c++) {
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ch = l->data;
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g_string_append_printf(*out, "%s: ", ch->name);
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fancyprint(analog->unit, analog->mqflags,
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fdata[si * num_channels + c], *out);
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}
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}
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break;
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case SR_DF_ANALOG2:
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analog2 = packet->payload;
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if (!(fdata = g_try_malloc(analog2->num_samples * sizeof(float))))
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return SR_ERR_MALLOC;
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if ((ret = sr_analog_to_float(analog2, fdata)) != SR_OK)
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return ret;
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*out = g_string_sized_new(512);
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if (analog2->encoding->is_digits_decimal) {
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if (ctx->digits == DIGITS_ALL)
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digits = analog2->encoding->digits;
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else
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digits = analog2->spec->spec_digits;
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} else {
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/* TODO we don't know how to print by number of bits yet. */
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digits = 6;
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}
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sr_analog_unit_to_string(analog2, &suffix);
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num_channels = g_slist_length(analog2->meaning->channels);
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for (i = 0; i < analog2->num_samples; i++) {
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for (l = analog2->meaning->channels, c = 0; l; l = l->next, c++) {
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ch = l->data;
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g_string_append_printf(*out, "%s: ", ch->name);
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sr_analog_float_to_string(fdata[i * num_channels + c],
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digits, &number);
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g_string_append(*out, number);
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g_free(number);
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g_string_append(*out, " ");
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g_string_append(*out, suffix);
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g_string_append(*out, "\n");
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}
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}
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g_free(suffix);
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break;
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}
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return SR_OK;
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}
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static int cleanup(struct sr_output *o)
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{
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struct context *ctx;
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if (!o || !o->sdi)
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return SR_ERR_ARG;
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ctx = o->priv;
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g_ptr_array_free(ctx->channellist, 1);
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g_free(ctx);
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o->priv = NULL;
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return SR_OK;
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}
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static struct sr_option options[] = {
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{ "digits", "Digits", "Digits to show", NULL, NULL },
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ALL_ZERO
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};
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static const struct sr_option *get_options(void)
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{
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if (!options[0].def) {
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options[0].def = g_variant_ref_sink(g_variant_new_string("all"));
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options[0].values = g_slist_append(options[0].values,
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g_variant_ref_sink(g_variant_new_string("all")));
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options[0].values = g_slist_append(options[0].values,
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g_variant_ref_sink(g_variant_new_string("spec")));
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}
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return options;
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}
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SR_PRIV struct sr_output_module output_analog = {
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.id = "analog",
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.name = "Analog",
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.desc = "Analog data and types",
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.exts = NULL,
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.flags = 0,
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.options = get_options,
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.init = init,
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.receive = receive,
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.cleanup = cleanup
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};
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