[pulseview.git] / pv / prop / binding / deviceoptions.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <boost/bind.hpp>

#include <QDebug>
#include <QObject>

#include <stdint.h>

#include "deviceoptions.h"

#include <pv/prop/bool.h>
#include <pv/prop/double.h>
#include <pv/prop/enum.h>
#include <pv/prop/int.h>

using namespace boost;
using namespace std;

namespace pv {
namespace prop {
namespace binding {

DeviceOptions::DeviceOptions(struct sr_dev_inst *sdi) :
	_sdi(sdi)
{
	GVariant *gvar_opts, *gvar_list;
	gsize num_opts;

	if ((sr_config_list(sdi->driver, SR_CONF_DEVICE_OPTIONS,
		&gvar_opts, sdi) != SR_OK))
		/* Driver supports no device instance options. */
		return;

	const int *const options = (const int32_t *)g_variant_get_fixed_array(
		gvar_opts, &num_opts, sizeof(int32_t));
	for (unsigned int i = 0; i < num_opts; i++) {
		const struct sr_config_info *const info =
			sr_config_info_get(options[i]);

		if (!info)
			continue;

		const int key = info->key;

		if(sr_config_list(_sdi->driver, key, &gvar_list, _sdi) != SR_OK)
			gvar_list = NULL;

		const QString name(info->name);

		switch(key)
		{
		case SR_CONF_SAMPLERATE:
			bind_samplerate(name, gvar_list);
			break;

		case SR_CONF_CAPTURE_RATIO:
			bind_int(name, key, "%", pair<int64_t, int64_t>(0, 100));
			break;

		case SR_CONF_PATTERN_MODE:
		case SR_CONF_BUFFERSIZE:
		case SR_CONF_TRIGGER_SOURCE:
		case SR_CONF_FILTER:
		case SR_CONF_COUPLING:
			bind_enum(name, key, gvar_list);
			break;

		case SR_CONF_RLE:
			bind_bool(name, key);
			break;

		case SR_CONF_TIMEBASE:
			bind_enum(name, key, gvar_list, print_timebase);
			break;

		case SR_CONF_VDIV:
			bind_enum(name, key, gvar_list, print_vdiv);
			break;

		case SR_CONF_VOLTAGE_THRESHOLD:
			bind_enum(name, key, gvar_list, print_voltage_threshold);
			break;
		}

		if (gvar_list)
			g_variant_unref(gvar_list);
	}
	g_variant_unref(gvar_opts);
}

GVariant* DeviceOptions::config_getter(
	const struct sr_dev_inst *sdi, int key)
{
	GVariant *data = NULL;
	if (sr_config_get(sdi->driver, key, &data, sdi) != SR_OK) {
		qDebug() <<
			"WARNING: Failed to get value of config id" << key;
		return NULL;
	}
	return data;
}

void DeviceOptions::config_setter(
	const struct sr_dev_inst *sdi, int key, GVariant* value)
{
	if (sr_config_set(sdi, key, value) != SR_OK)
		qDebug() << "WARNING: Failed to set value of sample rate";
}

void DeviceOptions::bind_bool(const QString &name, int key)
{
	_properties.push_back(shared_ptr<Property>(
		new Bool(name, bind(config_getter, _sdi, key),
			bind(config_setter, _sdi, key, _1))));
}

void DeviceOptions::bind_enum(const QString &name, int key,
	GVariant *const gvar_list, function<QString (GVariant*)> printer)
{
	GVariant *gvar;
	GVariantIter iter;
	vector< pair<GVariant*, QString> > values;

	assert(gvar_list);

	g_variant_iter_init (&iter, gvar_list);
	while ((gvar = g_variant_iter_next_value (&iter)))
		values.push_back(make_pair(gvar, printer(gvar)));

	_properties.push_back(shared_ptr<Property>(
		new Enum(name, values,
			bind(config_getter, _sdi, key),
			bind(config_setter, _sdi, key, _1))));
}

void DeviceOptions::bind_int(const QString &name, int key, QString suffix,
	optional< std::pair<int64_t, int64_t> > range)
{
	_properties.push_back(shared_ptr<Property>(
		new Int(name, suffix, range,
			bind(config_getter, _sdi, key),
			bind(config_setter, _sdi, key, _1))));
}

QString DeviceOptions::print_gvariant(GVariant *const gvar)
{
	QString s;

	if (g_variant_is_of_type(gvar, G_VARIANT_TYPE("s")))
		s = QString(g_variant_get_string(gvar, NULL));
	else
	{
		gchar *const text = g_variant_print(gvar, FALSE);
		s = QString(text);
		g_free(text);
	}

	return s;
}

void DeviceOptions::bind_samplerate(const QString &name,
	GVariant *const gvar_list)
{
	GVariant *gvar_list_samplerates;

	assert(gvar_list);

	if ((gvar_list_samplerates = g_variant_lookup_value(gvar_list,
			"samplerate-steps", G_VARIANT_TYPE("at"))))
	{
		gsize num_elements;
		const uint64_t *const elements =
			(const uint64_t *)g_variant_get_fixed_array(
				gvar_list_samplerates, &num_elements, sizeof(uint64_t));

		assert(num_elements == 3);

		_properties.push_back(shared_ptr<Property>(
			new Double(name, 0, QObject::tr("Hz"),
				make_pair((double)elements[0], (double)elements[1]),
						(double)elements[2],
				bind(samplerate_double_getter, _sdi),
				bind(samplerate_double_setter, _sdi, _1))));

		g_variant_unref(gvar_list_samplerates);
	}
	else if ((gvar_list_samplerates = g_variant_lookup_value(gvar_list,
			"samplerates", G_VARIANT_TYPE("at"))))
	{
		bind_enum(name, SR_CONF_SAMPLERATE,
			gvar_list_samplerates, print_samplerate);
		g_variant_unref(gvar_list_samplerates);
	}
}

QString DeviceOptions::print_samplerate(GVariant *const gvar)
{
	char *const s = sr_samplerate_string(
		g_variant_get_uint64(gvar));
	const QString qstring(s);
	g_free(s);
	return qstring;
}

GVariant* DeviceOptions::samplerate_double_getter(
	const struct sr_dev_inst *sdi)
{
	GVariant *const gvar = config_getter(sdi, SR_CONF_SAMPLERATE);

	if(!gvar)
		return NULL;

	GVariant *const gvar_double = g_variant_new_double(
		g_variant_get_uint64(gvar));

	g_variant_unref(gvar);

	return gvar_double;
}

void DeviceOptions::samplerate_double_setter(
	struct sr_dev_inst *sdi, GVariant *value)
{
	GVariant *const gvar = g_variant_new_uint64(
		g_variant_get_double(value));
	config_setter(sdi, SR_CONF_SAMPLERATE, gvar);
}

QString DeviceOptions::print_timebase(GVariant *const gvar)
{
	uint64_t p, q;
	g_variant_get(gvar, "(tt)", &p, &q);
	return QString(sr_period_string(p * q));
}

QString DeviceOptions::print_vdiv(GVariant *const gvar)
{
	uint64_t p, q;
	g_variant_get(gvar, "(tt)", &p, &q);
	return QString(sr_voltage_string(p, q));
}

QString DeviceOptions::print_voltage_threshold(GVariant *const gvar)
{
	gdouble lo, hi;
	char buf[64];
	g_variant_get(gvar, "(dd)", &lo, &hi);
	snprintf(buf, sizeof(buf), "L<%.1fV H>%.1fV", lo, hi);
	return QString(buf);
}

} // binding
} // prop
} // pv
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	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 2 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, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include <boost/bind.hpp>
	22
	23	#include <QDebug>
	24	#include <QObject>
	25
	26	#include <stdint.h>
	27
	28	#include "deviceoptions.h"
	29
	30	#include <pv/prop/bool.h>
	31	#include <pv/prop/double.h>
	32	#include <pv/prop/enum.h>
	33	#include <pv/prop/int.h>
	34
	35	using namespace boost;
	36	using namespace std;
	37
	38	namespace pv {
	39	namespace prop {
	40	namespace binding {
	41
	42	DeviceOptions::DeviceOptions(struct sr_dev_inst *sdi) :
	43	_sdi(sdi)
	44	{
	45	GVariant gvar_opts, gvar_list;
	46	gsize num_opts;
	47
	48	if ((sr_config_list(sdi->driver, SR_CONF_DEVICE_OPTIONS,
	49	&gvar_opts, sdi) != SR_OK))
	50	/* Driver supports no device instance options. */
	51	return;
	52
	53	const int const options = (const int32_t )g_variant_get_fixed_array(
	54	gvar_opts, &num_opts, sizeof(int32_t));
	55	for (unsigned int i = 0; i < num_opts; i++) {
	56	const struct sr_config_info *const info =
	57	sr_config_info_get(options[i]);
	58
	59	if (!info)
	60	continue;
	61
	62	const int key = info->key;
	63
	64	if(sr_config_list(_sdi->driver, key, &gvar_list, _sdi) != SR_OK)
	65	gvar_list = NULL;
	66
	67	const QString name(info->name);
	68
	69	switch(key)
	70	{
	71	case SR_CONF_SAMPLERATE:
	72	bind_samplerate(name, gvar_list);
	73	break;
	74
	75	case SR_CONF_CAPTURE_RATIO:
	76	bind_int(name, key, "%", pair<int64_t, int64_t>(0, 100));
	77	break;
	78
	79	case SR_CONF_PATTERN_MODE:
	80	case SR_CONF_BUFFERSIZE:
	81	case SR_CONF_TRIGGER_SOURCE:
	82	case SR_CONF_FILTER:
	83	case SR_CONF_COUPLING:
	84	bind_enum(name, key, gvar_list);
	85	break;
	86
	87	case SR_CONF_RLE:
	88	bind_bool(name, key);
	89	break;
	90
	91	case SR_CONF_TIMEBASE:
	92	bind_enum(name, key, gvar_list, print_timebase);
	93	break;
	94
	95	case SR_CONF_VDIV:
	96	bind_enum(name, key, gvar_list, print_vdiv);
	97	break;
	98
	99	case SR_CONF_VOLTAGE_THRESHOLD:
	100	bind_enum(name, key, gvar_list, print_voltage_threshold);
	101	break;
	102	}
	103
	104	if (gvar_list)
	105	g_variant_unref(gvar_list);
	106	}
	107	g_variant_unref(gvar_opts);
	108	}
	109
	110	GVariant* DeviceOptions::config_getter(
	111	const struct sr_dev_inst *sdi, int key)
	112	{
	113	GVariant *data = NULL;
	114	if (sr_config_get(sdi->driver, key, &data, sdi) != SR_OK) {
	115	qDebug() <<
	116	"WARNING: Failed to get value of config id" << key;
	117	return NULL;
	118	}
	119	return data;
	120	}
	121
	122	void DeviceOptions::config_setter(
	123	const struct sr_dev_inst sdi, int key, GVariant value)
	124	{
	125	if (sr_config_set(sdi, key, value) != SR_OK)
	126	qDebug() << "WARNING: Failed to set value of sample rate";
	127	}
	128
	129	void DeviceOptions::bind_bool(const QString &name, int key)
	130	{
	131	_properties.push_back(shared_ptr<Property>(
	132	new Bool(name, bind(config_getter, _sdi, key),
	133	bind(config_setter, _sdi, key, _1))));
	134	}
	135
	136	void DeviceOptions::bind_enum(const QString &name, int key,
	137	GVariant const gvar_list, function<QString (GVariant)> printer)
	138	{
	139	GVariant *gvar;
	140	GVariantIter iter;
	141	vector< pair<GVariant*, QString> > values;
	142
	143	assert(gvar_list);
	144
	145	g_variant_iter_init (&iter, gvar_list);
	146	while ((gvar = g_variant_iter_next_value (&iter)))
	147	values.push_back(make_pair(gvar, printer(gvar)));
	148
	149	_properties.push_back(shared_ptr<Property>(
	150	new Enum(name, values,
	151	bind(config_getter, _sdi, key),
	152	bind(config_setter, _sdi, key, _1))));
	153	}
	154
	155	void DeviceOptions::bind_int(const QString &name, int key, QString suffix,
	156	optional< std::pair<int64_t, int64_t> > range)
	157	{
	158	_properties.push_back(shared_ptr<Property>(
	159	new Int(name, suffix, range,
	160	bind(config_getter, _sdi, key),
	161	bind(config_setter, _sdi, key, _1))));
	162	}
	163
	164	QString DeviceOptions::print_gvariant(GVariant *const gvar)
	165	{
	166	QString s;
	167
	168	if (g_variant_is_of_type(gvar, G_VARIANT_TYPE("s")))
	169	s = QString(g_variant_get_string(gvar, NULL));
	170	else
	171	{
	172	gchar *const text = g_variant_print(gvar, FALSE);
	173	s = QString(text);
	174	g_free(text);
	175	}
	176
	177	return s;
	178	}
	179
	180	void DeviceOptions::bind_samplerate(const QString &name,
	181	GVariant *const gvar_list)
	182	{
	183	GVariant *gvar_list_samplerates;
	184
	185	assert(gvar_list);
	186
	187	if ((gvar_list_samplerates = g_variant_lookup_value(gvar_list,
	188	"samplerate-steps", G_VARIANT_TYPE("at"))))
	189	{
	190	gsize num_elements;
	191	const uint64_t *const elements =
	192	(const uint64_t *)g_variant_get_fixed_array(
	193	gvar_list_samplerates, &num_elements, sizeof(uint64_t));
	194
	195	assert(num_elements == 3);
	196
	197	_properties.push_back(shared_ptr<Property>(
	198	new Double(name, 0, QObject::tr("Hz"),
	199	make_pair((double)elements[0], (double)elements[1]),
	200	(double)elements[2],
	201	bind(samplerate_double_getter, _sdi),
	202	bind(samplerate_double_setter, _sdi, _1))));
	203
	204	g_variant_unref(gvar_list_samplerates);
	205	}
	206	else if ((gvar_list_samplerates = g_variant_lookup_value(gvar_list,
	207	"samplerates", G_VARIANT_TYPE("at"))))
	208	{
	209	bind_enum(name, SR_CONF_SAMPLERATE,
	210	gvar_list_samplerates, print_samplerate);
	211	g_variant_unref(gvar_list_samplerates);
	212	}
	213	}
	214
	215	QString DeviceOptions::print_samplerate(GVariant *const gvar)
	216	{
	217	char *const s = sr_samplerate_string(
	218	g_variant_get_uint64(gvar));
	219	const QString qstring(s);
	220	g_free(s);
	221	return qstring;
	222	}
	223
	224	GVariant* DeviceOptions::samplerate_double_getter(
	225	const struct sr_dev_inst *sdi)
	226	{
	227	GVariant *const gvar = config_getter(sdi, SR_CONF_SAMPLERATE);
	228
	229	if(!gvar)
	230	return NULL;
	231
	232	GVariant *const gvar_double = g_variant_new_double(
	233	g_variant_get_uint64(gvar));
	234
	235	g_variant_unref(gvar);
	236
	237	return gvar_double;
	238	}
	239
	240	void DeviceOptions::samplerate_double_setter(
	241	struct sr_dev_inst sdi, GVariant value)
	242	{
	243	GVariant *const gvar = g_variant_new_uint64(
	244	g_variant_get_double(value));
	245	config_setter(sdi, SR_CONF_SAMPLERATE, gvar);
	246	}
	247
	248	QString DeviceOptions::print_timebase(GVariant *const gvar)
	249	{
	250	uint64_t p, q;
	251	g_variant_get(gvar, "(tt)", &p, &q);
	252	return QString(sr_period_string(p * q));
	253	}
	254
	255	QString DeviceOptions::print_vdiv(GVariant *const gvar)
	256	{
	257	uint64_t p, q;
	258	g_variant_get(gvar, "(tt)", &p, &q);
	259	return QString(sr_voltage_string(p, q));
	260	}
	261
	262	QString DeviceOptions::print_voltage_threshold(GVariant *const gvar)
	263	{
	264	gdouble lo, hi;
	265	char buf[64];
	266	g_variant_get(gvar, "(dd)", &lo, &hi);
	267	snprintf(buf, sizeof(buf), "L<%.1fV H>%.1fV", lo, hi);
	268	return QString(buf);
	269	}
	270
	271	} // binding
	272	} // prop
	273	} // pv
	274