[sigrok-cli.git] / session.c

/*
 * This file is part of the sigrok-cli project.
 *
 * Copyright (C) 2013 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 <glib.h>
#include <glib/gstdio.h>
#include <string.h>
#include <stdlib.h>
#include "sigrok-cli.h"

static uint64_t limit_samples = 0;
static uint64_t limit_frames = 0;
static char *srzip_and_filename = NULL;

#ifdef HAVE_SRD
extern struct srd_session *srd_sess;
#endif

static int set_limit_time(const struct sr_dev_inst *sdi)
{
	GVariant *gvar;
	uint64_t time_msec;
	uint64_t samplerate;
	struct sr_dev_driver *driver;

	driver = sr_dev_inst_driver_get(sdi);

	if (!(time_msec = sr_parse_timestring(opt_time))) {
		g_critical("Invalid time '%s'", opt_time);
		return SR_ERR;
	}

	if (config_key_has_cap(driver, sdi, NULL, SR_CONF_LIMIT_MSEC, SR_CONF_SET)) {
		gvar = g_variant_new_uint64(time_msec);
		if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) {
			g_critical("Failed to configure time limit.");
			return SR_ERR;
		}
	} else if (config_key_has_cap(driver, sdi, NULL, SR_CONF_SAMPLERATE,
			SR_CONF_GET | SR_CONF_SET)) {
		/* Convert to samples based on the samplerate. */
		sr_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar);
		samplerate = g_variant_get_uint64(gvar);
		g_variant_unref(gvar);
		limit_samples = (samplerate) * time_msec / (uint64_t)1000;
		if (limit_samples == 0) {
			g_critical("Not enough time at this samplerate.");
			return SR_ERR;
		}
		gvar = g_variant_new_uint64(limit_samples);
		if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
			g_critical("Failed to configure time-based sample limit.");
			return SR_ERR;
		}
	} else {
		g_critical("This device does not support time limits.");
		return SR_ERR;
	}

	return SR_OK;
}

const struct sr_output *setup_output_format(const struct sr_dev_inst *sdi)
{
	const struct sr_output_module *omod;
	const struct sr_option **options;
	const struct sr_output *o;
	GHashTable *fmtargs, *fmtopts;
	int size;
	char *fmtspec;

	if (!opt_output_format) {
		if (opt_output_file) {
			size = strlen(opt_output_file) + 32;
			srzip_and_filename = g_malloc(size);
			snprintf(srzip_and_filename, size, "srzip:filename=%s", opt_output_file);
			opt_output_format = srzip_and_filename;
		} else {
			opt_output_format = DEFAULT_OUTPUT_FORMAT;
		}
	}

	fmtargs = parse_generic_arg(opt_output_format, TRUE);
	fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
	if (!fmtspec)
		g_critical("Invalid output format.");
	if (!(omod = sr_output_find(fmtspec)))
		g_critical("Unknown output module '%s'.", fmtspec);
	g_hash_table_remove(fmtargs, "sigrok_key");
	if ((options = sr_output_options_get(omod))) {
		fmtopts = generic_arg_to_opt(options, fmtargs);
		sr_output_options_free(options);
	} else
		fmtopts = NULL;
	o = sr_output_new(omod, fmtopts, sdi);
	if (fmtopts)
		g_hash_table_destroy(fmtopts);
	g_hash_table_destroy(fmtargs);

	return o;
}

const struct sr_transform *setup_transform_module(const struct sr_dev_inst *sdi)
{
	const struct sr_transform_module *tmod;
	const struct sr_option **options;
	const struct sr_transform *t;
	GHashTable *fmtargs, *fmtopts;
	char *fmtspec;

	if (!opt_transform_module)
		opt_transform_module = "nop";

	fmtargs = parse_generic_arg(opt_transform_module, TRUE);
	fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
	if (!fmtspec)
		g_critical("Invalid transform module.");
	if (!(tmod = sr_transform_find(fmtspec)))
		g_critical("Unknown transform module '%s'.", fmtspec);
	g_hash_table_remove(fmtargs, "sigrok_key");
	if ((options = sr_transform_options_get(tmod))) {
		fmtopts = generic_arg_to_opt(options, fmtargs);
		sr_transform_options_free(options);
	} else
		fmtopts = NULL;
	t = sr_transform_new(tmod, fmtopts, sdi);
	if (fmtopts)
		g_hash_table_destroy(fmtopts);
	g_hash_table_destroy(fmtargs);

	return t;
}

void datafeed_in(const struct sr_dev_inst *sdi,
		const struct sr_datafeed_packet *packet, void *cb_data)
{
	const struct sr_datafeed_meta *meta;
	const struct sr_datafeed_logic *logic;
	const struct sr_datafeed_analog *analog;
	struct sr_session *session;
	struct sr_config *src;
	static const struct sr_output *o = NULL;
	static const struct sr_output *oa = NULL;
	static uint64_t rcvd_samples_logic = 0;
	static uint64_t rcvd_samples_analog = 0;
	static uint64_t samplerate = 0;
	static int triggered = 0;
	static FILE *outfile = NULL;
	GSList *l;
	GString *out;
	GVariant *gvar;
	uint64_t end_sample;
	uint64_t input_len;
	struct sr_dev_driver *driver;

	driver = sr_dev_inst_driver_get(sdi);

	/* If the first packet to come in isn't a header, don't even try. */
	if (packet->type != SR_DF_HEADER && !o)
		return;

	session = cb_data;
	switch (packet->type) {
	case SR_DF_HEADER:
		g_debug("cli: Received SR_DF_HEADER.");
		if (!(o = setup_output_format(sdi)))
			g_critical("Failed to initialize output module.");

		/* Set up backup analog output module. */
		oa = sr_output_new(sr_output_find("analog"), NULL, sdi);

		if (opt_output_file)
			outfile = g_fopen(opt_output_file, "wb");
		else
			outfile = stdout;

		rcvd_samples_logic = rcvd_samples_analog = 0;

		if (maybe_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE,
				&gvar) == SR_OK) {
			samplerate = g_variant_get_uint64(gvar);
			g_variant_unref(gvar);
		}

#ifdef HAVE_SRD
		if (opt_pds) {
			if (samplerate) {
				if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
						g_variant_new_uint64(samplerate)) != SRD_OK) {
					g_critical("Failed to configure decode session.");
					break;
				}
			}
			if (srd_session_start(srd_sess) != SRD_OK) {
				g_critical("Failed to start decode session.");
				break;
			}
		}
#endif
		break;

	case SR_DF_META:
		g_debug("cli: Received SR_DF_META.");
		meta = packet->payload;
		for (l = meta->config; l; l = l->next) {
			src = l->data;
			switch (src->key) {
			case SR_CONF_SAMPLERATE:
				samplerate = g_variant_get_uint64(src->data);
				g_debug("cli: Got samplerate %"PRIu64" Hz.", samplerate);
#ifdef HAVE_SRD
				if (opt_pds) {
					if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
							g_variant_new_uint64(samplerate)) != SRD_OK) {
						g_critical("Failed to pass samplerate to decoder.");
					}
				}
#endif
				break;
			case SR_CONF_SAMPLE_INTERVAL:
				samplerate = g_variant_get_uint64(src->data);
				g_debug("cli: Got sample interval %"PRIu64" ms.", samplerate);
				break;
			default:
				/* Unknown metadata is not an error. */
				break;
			}
		}
		break;

	case SR_DF_TRIGGER:
		g_debug("cli: Received SR_DF_TRIGGER.");
		triggered = 1;
		break;

	case SR_DF_LOGIC:
		logic = packet->payload;
		g_message("cli: Received SR_DF_LOGIC (%"PRIu64" bytes, unitsize = %d).",
				logic->length, logic->unitsize);
		if (logic->length == 0)
			break;

		/* Don't store any samples until triggered. */
		if (opt_wait_trigger && !triggered)
			break;

		if (limit_samples && rcvd_samples_logic >= limit_samples)
			break;

		end_sample = rcvd_samples_logic + logic->length / logic->unitsize;
		/* Cut off last packet according to the sample limit. */
		if (limit_samples && end_sample > limit_samples)
			end_sample = limit_samples;
		input_len = (end_sample - rcvd_samples_logic) * logic->unitsize;

		if (opt_pds) {
#ifdef HAVE_SRD
			if (srd_session_send(srd_sess, rcvd_samples_logic, end_sample,
					logic->data, input_len) != SRD_OK)
				sr_session_stop(session);
#endif
		}

		rcvd_samples_logic = end_sample;
		break;

	case SR_DF_ANALOG:
		analog = packet->payload;
		g_message("cli: Received SR_DF_ANALOG (%d samples).", analog->num_samples);
		if (analog->num_samples == 0)
			break;

		if (limit_samples && rcvd_samples_analog >= limit_samples)
			break;

		rcvd_samples_analog += analog->num_samples;
		break;

	case SR_DF_FRAME_BEGIN:
		g_debug("cli: Received SR_DF_FRAME_BEGIN.");
		break;

	case SR_DF_FRAME_END:
		g_debug("cli: Received SR_DF_FRAME_END.");
		break;

	default:
		break;
	}

	if (o && outfile && !opt_pds) {
		if (sr_output_send(o, packet, &out) == SR_OK) {
			if (!out || (out->len == 0
					&& !opt_output_format
					&& packet->type == SR_DF_ANALOG)) {
				/*
				 * The user didn't specify an output module,
				 * but needs to see this analog data.
				 */
				sr_output_send(oa, packet, &out);
			}
			if (out && out->len > 0) {
				fwrite(out->str, 1, out->len, outfile);
				fflush(outfile);
			}
			if (out)
				g_string_free(out, TRUE);
		}
	}

	/*
	 * SR_DF_END needs to be handled after the output module's receive()
	 * is called, so it can properly clean up that module.
	 */
	if (packet->type == SR_DF_END) {
		g_debug("cli: Received SR_DF_END.");

		if (o) {
			sr_output_free(o);
			g_free(srzip_and_filename);
		}
		o = NULL;

		sr_output_free(oa);
		oa = NULL;

		if (outfile && outfile != stdout)
			fclose(outfile);

		if (limit_samples) {
			if (rcvd_samples_logic > 0 && rcvd_samples_logic < limit_samples)
				g_warning("Device only sent %" PRIu64 " samples.",
					   rcvd_samples_logic);
			else if (rcvd_samples_analog > 0 && rcvd_samples_analog < limit_samples)
				g_warning("Device only sent %" PRIu64 " samples.",
					   rcvd_samples_analog);
		}
	}

}

int opt_to_gvar(char *key, char *value, struct sr_config *src)
{
	const struct sr_config_info *srci;
	double tmp_double, dlow, dhigh;
	uint64_t tmp_u64, p, q, low, high;
	GVariant *rational[2], *range[2];
	GVariantBuilder *vbl;
	gboolean tmp_bool;
	gchar **keyval;
	int ret;

	if (!(srci = sr_config_info_name_get(key))) {
		g_critical("Unknown device option '%s'.", (char *) key);
		return -1;
	}
	src->key = srci->key;

	if ((!value || strlen(value) == 0) &&
		(srci->datatype != SR_T_BOOL)) {
		g_critical("Option '%s' needs a value.", (char *)key);
		return -1;
	}

	ret = 0;
	switch (srci->datatype) {
	case SR_T_UINT64:
		ret = sr_parse_sizestring(value, &tmp_u64);
		if (ret != 0)
			break;
		src->data = g_variant_new_uint64(tmp_u64);
		break;
	case SR_T_INT32:
		ret = sr_parse_sizestring(value, &tmp_u64);
		if (ret != 0)
			break;
		src->data = g_variant_new_int32(tmp_u64);
		break;
	case SR_T_STRING:
		src->data = g_variant_new_string(value);
		break;
	case SR_T_BOOL:
		if (!value)
			tmp_bool = TRUE;
		else
			tmp_bool = sr_parse_boolstring(value);
		src->data = g_variant_new_boolean(tmp_bool);
		break;
	case SR_T_FLOAT:
		tmp_double = strtof(value, NULL);
		src->data = g_variant_new_double(tmp_double);
		break;
	case SR_T_RATIONAL_PERIOD:
		if ((ret = sr_parse_period(value, &p, &q)) != SR_OK)
			break;
		rational[0] = g_variant_new_uint64(p);
		rational[1] = g_variant_new_uint64(q);
		src->data = g_variant_new_tuple(rational, 2);
		break;
	case SR_T_RATIONAL_VOLT:
		if ((ret = sr_parse_voltage(value, &p, &q)) != SR_OK)
			break;
		rational[0] = g_variant_new_uint64(p);
		rational[1] = g_variant_new_uint64(q);
		src->data = g_variant_new_tuple(rational, 2);
		break;
	case SR_T_UINT64_RANGE:
		if (sscanf(value, "%"PRIu64"-%"PRIu64, &low, &high) != 2) {
			ret = -1;
			break;
		} else {
			range[0] = g_variant_new_uint64(low);
			range[1] = g_variant_new_uint64(high);
			src->data = g_variant_new_tuple(range, 2);
		}
		break;
	case SR_T_DOUBLE_RANGE:
		if (sscanf(value, "%lf-%lf", &dlow, &dhigh) != 2) {
			ret = -1;
			break;
		} else {
			range[0] = g_variant_new_double(dlow);
			range[1] = g_variant_new_double(dhigh);
			src->data = g_variant_new_tuple(range, 2);
		}
		break;
	case SR_T_KEYVALUE:
		/* Expects the argument to be in the form of key=value. */
		keyval = g_strsplit(value, "=", 2);
		if (!keyval[0] || !keyval[1]) {
			g_strfreev(keyval);
			ret = -1;
			break;
		} else {
			vbl = g_variant_builder_new(G_VARIANT_TYPE_DICTIONARY);
			g_variant_builder_add(vbl, "{ss}",
					      keyval[0], keyval[1]);
			src->data = g_variant_builder_end(vbl);
			g_strfreev(keyval);
		}
		break;
	default:
		g_critical("Unknown data type specified for option '%s' "
			   "(driver implementation bug?).", key);
		ret = -1;
	}

	if (ret < 0)
		g_critical("Invalid value: '%s' for option '%s'", value, key);

	return ret;
}

int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
{
	struct sr_config src;
	struct sr_channel_group *cg;
	GHashTableIter iter;
	gpointer key, value;
	int ret;

	g_hash_table_iter_init(&iter, args);
	while (g_hash_table_iter_next(&iter, &key, &value)) {
		if ((ret = opt_to_gvar(key, value, &src)) != 0)
			return ret;
		cg = select_channel_group(sdi);
		if ((ret = maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, cg,
				src.key, src.data)) != SR_OK) {
			g_critical("Failed to set device option '%s': %s.",
				   (char *)key, sr_strerror(ret));
			return ret;
		}
	}

	return SR_OK;
}

void run_session(void)
{
	GSList *devices, *real_devices, *sd;
	GHashTable *devargs;
	GVariant *gvar;
	struct sr_session *session;
	struct sr_trigger *trigger;
	struct sr_dev_inst *sdi;
	uint64_t min_samples, max_samples;
	gsize n_elements, i;
	const uint32_t *dev_opts;
	int is_demo_dev;
	struct sr_dev_driver *driver;
	const struct sr_transform *t;

	devices = device_scan();
	if (!devices) {
		g_critical("No devices found.");
		return;
	}

	real_devices = NULL;
	for (sd = devices; sd; sd = sd->next) {
		sdi = sd->data;

		driver = sr_dev_inst_driver_get(sdi);

		if (sr_config_list(driver, sdi, NULL, SR_CONF_DEVICE_OPTIONS, &gvar) != SR_OK) {
			g_critical("Failed to query list device options.");
			return;
		}

		dev_opts = g_variant_get_fixed_array(gvar, &n_elements, sizeof(uint32_t));

		is_demo_dev = 0;
		for (i = 0; i < n_elements; i++) {
			if (dev_opts[i] == SR_CONF_DEMO_DEV)
				is_demo_dev = 1;
		}

		g_variant_unref(gvar);

		if (!is_demo_dev)
			real_devices = g_slist_append(real_devices, sdi);
	}

	if (g_slist_length(devices) > 1) {
		if (g_slist_length(real_devices) != 1) {
			g_critical("sigrok-cli only supports one device for capturing.");
			return;
		} else {
			/* We only have one non-demo device. */
			g_slist_free(devices);
			devices = real_devices;
			real_devices = NULL;
		}
	}

	sdi = devices->data;
	g_slist_free(devices);
	g_slist_free(real_devices);

	sr_session_new(sr_ctx, &session);
	sr_session_datafeed_callback_add(session, datafeed_in, NULL);

	if (sr_dev_open(sdi) != SR_OK) {
		g_critical("Failed to open device.");
		return;
	}

	if (sr_session_dev_add(session, sdi) != SR_OK) {
		g_critical("Failed to add device to session.");
		sr_session_destroy(session);
		return;
	}

	if (opt_config) {
		if ((devargs = parse_generic_arg(opt_config, FALSE))) {
			if (set_dev_options(sdi, devargs) != SR_OK)
				return;
			g_hash_table_destroy(devargs);
		}
	}

	if (select_channels(sdi) != SR_OK) {
		g_critical("Failed to set channels.");
		sr_session_destroy(session);
		return;
	}

	if (opt_triggers) {
		if (!parse_triggerstring(sdi, opt_triggers, &trigger)) {
			sr_session_destroy(session);
			return;
		}
		if (sr_session_trigger_set(session, trigger) != SR_OK) {
			sr_session_destroy(session);
			return;
		}
	}

	if (opt_continuous) {
		if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
			g_critical("This device does not support continuous sampling.");
			sr_session_destroy(session);
			return;
		}
	}

	if (opt_time) {
		if (set_limit_time(sdi) != SR_OK) {
			sr_session_destroy(session);
			return;
		}
	}

	if (opt_samples) {
		if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
			g_critical("Invalid sample limit '%s'.", opt_samples);
			sr_session_destroy(session);
			return;
		}
		if (maybe_config_list(driver, sdi, NULL, SR_CONF_LIMIT_SAMPLES,
				&gvar) == SR_OK) {
			/*
			 * The device has no compression, or compression is turned
			 * off, and publishes its sample memory size.
			 */
			g_variant_get(gvar, "(tt)", &min_samples, &max_samples);
			g_variant_unref(gvar);
			if (limit_samples < min_samples) {
				g_critical("The device stores at least %"PRIu64
						" samples with the current settings.", min_samples);
			}
			if (limit_samples > max_samples) {
				g_critical("The device can store only %"PRIu64
						" samples with the current settings.", max_samples);
			}
		}
		gvar = g_variant_new_uint64(limit_samples);
		if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
			g_critical("Failed to configure sample limit.");
			sr_session_destroy(session);
			return;
		}
	}

	if (opt_frames) {
		if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
			g_critical("Invalid sample limit '%s'.", opt_samples);
			sr_session_destroy(session);
			return;
		}
		gvar = g_variant_new_uint64(limit_frames);
		if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
			g_critical("Failed to configure frame limit.");
			sr_session_destroy(session);
			return;
		}
	}

	if (!(t = setup_transform_module(sdi)))
		g_critical("Failed to initialize transform module.");

	if (sr_session_start(session) != SR_OK) {
		g_critical("Failed to start session.");
		sr_session_destroy(session);
		return;
	}

	if (opt_continuous)
		add_anykey(session);

	sr_session_run(session);

	if (opt_continuous)
		clear_anykey();

	sr_session_datafeed_callback_remove_all(session);
	sr_session_destroy(session);

}
Commit	Line	Data
	1	/*
	2	* This file is part of the sigrok-cli project.
	3	*
	4	* Copyright (C) 2013 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 <glib.h>
	21	#include <glib/gstdio.h>
	22	#include <string.h>
	23	#include <stdlib.h>
	24	#include "sigrok-cli.h"
	25
	26	static uint64_t limit_samples = 0;
	27	static uint64_t limit_frames = 0;
	28	static char *srzip_and_filename = NULL;
	29
	30	#ifdef HAVE_SRD
	31	extern struct srd_session *srd_sess;
	32	#endif
	33
	34	static int set_limit_time(const struct sr_dev_inst *sdi)
	35	{
	36	GVariant *gvar;
	37	uint64_t time_msec;
	38	uint64_t samplerate;
	39	struct sr_dev_driver *driver;
	40
	41	driver = sr_dev_inst_driver_get(sdi);
	42
	43	if (!(time_msec = sr_parse_timestring(opt_time))) {
	44	g_critical("Invalid time '%s'", opt_time);
	45	return SR_ERR;
	46	}
	47
	48	if (config_key_has_cap(driver, sdi, NULL, SR_CONF_LIMIT_MSEC, SR_CONF_SET)) {
	49	gvar = g_variant_new_uint64(time_msec);
	50	if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) {
	51	g_critical("Failed to configure time limit.");
	52	return SR_ERR;
	53	}
	54	} else if (config_key_has_cap(driver, sdi, NULL, SR_CONF_SAMPLERATE,
	55	SR_CONF_GET \| SR_CONF_SET)) {
	56	/* Convert to samples based on the samplerate. */
	57	sr_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar);
	58	samplerate = g_variant_get_uint64(gvar);
	59	g_variant_unref(gvar);
	60	limit_samples = (samplerate) * time_msec / (uint64_t)1000;
	61	if (limit_samples == 0) {
	62	g_critical("Not enough time at this samplerate.");
	63	return SR_ERR;
	64	}
	65	gvar = g_variant_new_uint64(limit_samples);
	66	if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
	67	g_critical("Failed to configure time-based sample limit.");
	68	return SR_ERR;
	69	}
	70	} else {
	71	g_critical("This device does not support time limits.");
	72	return SR_ERR;
	73	}
	74
	75	return SR_OK;
	76	}
	77
	78	const struct sr_output setup_output_format(const struct sr_dev_inst sdi)
	79	{
	80	const struct sr_output_module *omod;
	81	const struct sr_option **options;
	82	const struct sr_output *o;
	83	GHashTable fmtargs, fmtopts;
	84	int size;
	85	char *fmtspec;
	86
	87	if (!opt_output_format) {
	88	if (opt_output_file) {
	89	size = strlen(opt_output_file) + 32;
	90	srzip_and_filename = g_malloc(size);
	91	snprintf(srzip_and_filename, size, "srzip:filename=%s", opt_output_file);
	92	opt_output_format = srzip_and_filename;
	93	} else {
	94	opt_output_format = DEFAULT_OUTPUT_FORMAT;
	95	}
	96	}
	97
	98	fmtargs = parse_generic_arg(opt_output_format, TRUE);
	99	fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
	100	if (!fmtspec)
	101	g_critical("Invalid output format.");
	102	if (!(omod = sr_output_find(fmtspec)))
	103	g_critical("Unknown output module '%s'.", fmtspec);
	104	g_hash_table_remove(fmtargs, "sigrok_key");
	105	if ((options = sr_output_options_get(omod))) {
	106	fmtopts = generic_arg_to_opt(options, fmtargs);
	107	sr_output_options_free(options);
	108	} else
	109	fmtopts = NULL;
	110	o = sr_output_new(omod, fmtopts, sdi);
	111	if (fmtopts)
	112	g_hash_table_destroy(fmtopts);
	113	g_hash_table_destroy(fmtargs);
	114
	115	return o;
	116	}
	117
	118	const struct sr_transform setup_transform_module(const struct sr_dev_inst sdi)
	119	{
	120	const struct sr_transform_module *tmod;
	121	const struct sr_option **options;
	122	const struct sr_transform *t;
	123	GHashTable fmtargs, fmtopts;
	124	char *fmtspec;
	125
	126	if (!opt_transform_module)
	127	opt_transform_module = "nop";
	128
	129	fmtargs = parse_generic_arg(opt_transform_module, TRUE);
	130	fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
	131	if (!fmtspec)
	132	g_critical("Invalid transform module.");
	133	if (!(tmod = sr_transform_find(fmtspec)))
	134	g_critical("Unknown transform module '%s'.", fmtspec);
	135	g_hash_table_remove(fmtargs, "sigrok_key");
	136	if ((options = sr_transform_options_get(tmod))) {
	137	fmtopts = generic_arg_to_opt(options, fmtargs);
	138	sr_transform_options_free(options);
	139	} else
	140	fmtopts = NULL;
	141	t = sr_transform_new(tmod, fmtopts, sdi);
	142	if (fmtopts)
	143	g_hash_table_destroy(fmtopts);
	144	g_hash_table_destroy(fmtargs);
	145
	146	return t;
	147	}
	148
	149	void datafeed_in(const struct sr_dev_inst *sdi,
	150	const struct sr_datafeed_packet packet, void cb_data)
	151	{
	152	const struct sr_datafeed_meta *meta;
	153	const struct sr_datafeed_logic *logic;
	154	const struct sr_datafeed_analog *analog;
	155	struct sr_session *session;
	156	struct sr_config *src;
	157	static const struct sr_output *o = NULL;
	158	static const struct sr_output *oa = NULL;
	159	static uint64_t rcvd_samples_logic = 0;
	160	static uint64_t rcvd_samples_analog = 0;
	161	static uint64_t samplerate = 0;
	162	static int triggered = 0;
	163	static FILE *outfile = NULL;
	164	GSList *l;
	165	GString *out;
	166	GVariant *gvar;
	167	uint64_t end_sample;
	168	uint64_t input_len;
	169	struct sr_dev_driver *driver;
	170
	171	driver = sr_dev_inst_driver_get(sdi);
	172
	173	/* If the first packet to come in isn't a header, don't even try. */
	174	if (packet->type != SR_DF_HEADER && !o)
	175	return;
	176
	177	session = cb_data;
	178	switch (packet->type) {
	179	case SR_DF_HEADER:
	180	g_debug("cli: Received SR_DF_HEADER.");
	181	if (!(o = setup_output_format(sdi)))
	182	g_critical("Failed to initialize output module.");
	183
	184	/* Set up backup analog output module. */
	185	oa = sr_output_new(sr_output_find("analog"), NULL, sdi);
	186
	187	if (opt_output_file)
	188	outfile = g_fopen(opt_output_file, "wb");
	189	else
	190	outfile = stdout;
	191
	192	rcvd_samples_logic = rcvd_samples_analog = 0;
	193
	194	if (maybe_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE,
	195	&gvar) == SR_OK) {
	196	samplerate = g_variant_get_uint64(gvar);
	197	g_variant_unref(gvar);
	198	}
	199
	200	#ifdef HAVE_SRD
	201	if (opt_pds) {
	202	if (samplerate) {
	203	if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
	204	g_variant_new_uint64(samplerate)) != SRD_OK) {
	205	g_critical("Failed to configure decode session.");
	206	break;
	207	}
	208	}
	209	if (srd_session_start(srd_sess) != SRD_OK) {
	210	g_critical("Failed to start decode session.");
	211	break;
	212	}
	213	}
	214	#endif
	215	break;
	216
	217	case SR_DF_META:
	218	g_debug("cli: Received SR_DF_META.");
	219	meta = packet->payload;
	220	for (l = meta->config; l; l = l->next) {
	221	src = l->data;
	222	switch (src->key) {
	223	case SR_CONF_SAMPLERATE:
	224	samplerate = g_variant_get_uint64(src->data);
	225	g_debug("cli: Got samplerate %"PRIu64" Hz.", samplerate);
	226	#ifdef HAVE_SRD
	227	if (opt_pds) {
	228	if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
	229	g_variant_new_uint64(samplerate)) != SRD_OK) {
	230	g_critical("Failed to pass samplerate to decoder.");
	231	}
	232	}
	233	#endif
	234	break;
	235	case SR_CONF_SAMPLE_INTERVAL:
	236	samplerate = g_variant_get_uint64(src->data);
	237	g_debug("cli: Got sample interval %"PRIu64" ms.", samplerate);
	238	break;
	239	default:
	240	/* Unknown metadata is not an error. */
	241	break;
	242	}
	243	}
	244	break;
	245
	246	case SR_DF_TRIGGER:
	247	g_debug("cli: Received SR_DF_TRIGGER.");
	248	triggered = 1;
	249	break;
	250
	251	case SR_DF_LOGIC:
	252	logic = packet->payload;
	253	g_message("cli: Received SR_DF_LOGIC (%"PRIu64" bytes, unitsize = %d).",
	254	logic->length, logic->unitsize);
	255	if (logic->length == 0)
	256	break;
	257
	258	/* Don't store any samples until triggered. */
	259	if (opt_wait_trigger && !triggered)
	260	break;
	261
	262	if (limit_samples && rcvd_samples_logic >= limit_samples)
	263	break;
	264
	265	end_sample = rcvd_samples_logic + logic->length / logic->unitsize;
	266	/* Cut off last packet according to the sample limit. */
	267	if (limit_samples && end_sample > limit_samples)
	268	end_sample = limit_samples;
	269	input_len = (end_sample - rcvd_samples_logic) * logic->unitsize;
	270
	271	if (opt_pds) {
	272	#ifdef HAVE_SRD
	273	if (srd_session_send(srd_sess, rcvd_samples_logic, end_sample,
	274	logic->data, input_len) != SRD_OK)
	275	sr_session_stop(session);
	276	#endif
	277	}
	278
	279	rcvd_samples_logic = end_sample;
	280	break;
	281
	282	case SR_DF_ANALOG:
	283	analog = packet->payload;
	284	g_message("cli: Received SR_DF_ANALOG (%d samples).", analog->num_samples);
	285	if (analog->num_samples == 0)
	286	break;
	287
	288	if (limit_samples && rcvd_samples_analog >= limit_samples)
	289	break;
	290
	291	rcvd_samples_analog += analog->num_samples;
	292	break;
	293
	294	case SR_DF_FRAME_BEGIN:
	295	g_debug("cli: Received SR_DF_FRAME_BEGIN.");
	296	break;
	297
	298	case SR_DF_FRAME_END:
	299	g_debug("cli: Received SR_DF_FRAME_END.");
	300	break;
	301
	302	default:
	303	break;
	304	}
	305
	306	if (o && outfile && !opt_pds) {
	307	if (sr_output_send(o, packet, &out) == SR_OK) {
	308	if (!out \|\| (out->len == 0
	309	&& !opt_output_format
	310	&& packet->type == SR_DF_ANALOG)) {
	311	/*
	312	* The user didn't specify an output module,
	313	* but needs to see this analog data.
	314	*/
	315	sr_output_send(oa, packet, &out);
	316	}
	317	if (out && out->len > 0) {
	318	fwrite(out->str, 1, out->len, outfile);
	319	fflush(outfile);
	320	}
	321	if (out)
	322	g_string_free(out, TRUE);
	323	}
	324	}
	325
	326	/*
	327	* SR_DF_END needs to be handled after the output module's receive()
	328	* is called, so it can properly clean up that module.
	329	*/
	330	if (packet->type == SR_DF_END) {
	331	g_debug("cli: Received SR_DF_END.");
	332
	333	if (o) {
	334	sr_output_free(o);
	335	g_free(srzip_and_filename);
	336	}
	337	o = NULL;
	338
	339	sr_output_free(oa);
	340	oa = NULL;
	341
	342	if (outfile && outfile != stdout)
	343	fclose(outfile);
	344
	345	if (limit_samples) {
	346	if (rcvd_samples_logic > 0 && rcvd_samples_logic < limit_samples)
	347	g_warning("Device only sent %" PRIu64 " samples.",
	348	rcvd_samples_logic);
	349	else if (rcvd_samples_analog > 0 && rcvd_samples_analog < limit_samples)
	350	g_warning("Device only sent %" PRIu64 " samples.",
	351	rcvd_samples_analog);
	352	}
	353	}
	354
	355	}
	356
	357	int opt_to_gvar(char key, char value, struct sr_config *src)
	358	{
	359	const struct sr_config_info *srci;
	360	double tmp_double, dlow, dhigh;
	361	uint64_t tmp_u64, p, q, low, high;
	362	GVariant rational[2], range[2];
	363	GVariantBuilder *vbl;
	364	gboolean tmp_bool;
	365	gchar **keyval;
	366	int ret;
	367
	368	if (!(srci = sr_config_info_name_get(key))) {
	369	g_critical("Unknown device option '%s'.", (char *) key);
	370	return -1;
	371	}
	372	src->key = srci->key;
	373
	374	if ((!value \|\| strlen(value) == 0) &&
	375	(srci->datatype != SR_T_BOOL)) {
	376	g_critical("Option '%s' needs a value.", (char *)key);
	377	return -1;
	378	}
	379
	380	ret = 0;
	381	switch (srci->datatype) {
	382	case SR_T_UINT64:
	383	ret = sr_parse_sizestring(value, &tmp_u64);
	384	if (ret != 0)
	385	break;
	386	src->data = g_variant_new_uint64(tmp_u64);
	387	break;
	388	case SR_T_INT32:
	389	ret = sr_parse_sizestring(value, &tmp_u64);
	390	if (ret != 0)
	391	break;
	392	src->data = g_variant_new_int32(tmp_u64);
	393	break;
	394	case SR_T_STRING:
	395	src->data = g_variant_new_string(value);
	396	break;
	397	case SR_T_BOOL:
	398	if (!value)
	399	tmp_bool = TRUE;
	400	else
	401	tmp_bool = sr_parse_boolstring(value);
	402	src->data = g_variant_new_boolean(tmp_bool);
	403	break;
	404	case SR_T_FLOAT:
	405	tmp_double = strtof(value, NULL);
	406	src->data = g_variant_new_double(tmp_double);
	407	break;
	408	case SR_T_RATIONAL_PERIOD:
	409	if ((ret = sr_parse_period(value, &p, &q)) != SR_OK)
	410	break;
	411	rational[0] = g_variant_new_uint64(p);
	412	rational[1] = g_variant_new_uint64(q);
	413	src->data = g_variant_new_tuple(rational, 2);
	414	break;
	415	case SR_T_RATIONAL_VOLT:
	416	if ((ret = sr_parse_voltage(value, &p, &q)) != SR_OK)
	417	break;
	418	rational[0] = g_variant_new_uint64(p);
	419	rational[1] = g_variant_new_uint64(q);
	420	src->data = g_variant_new_tuple(rational, 2);
	421	break;
	422	case SR_T_UINT64_RANGE:
	423	if (sscanf(value, "%"PRIu64"-%"PRIu64, &low, &high) != 2) {
	424	ret = -1;
	425	break;
	426	} else {
	427	range[0] = g_variant_new_uint64(low);
	428	range[1] = g_variant_new_uint64(high);
	429	src->data = g_variant_new_tuple(range, 2);
	430	}
	431	break;
	432	case SR_T_DOUBLE_RANGE:
	433	if (sscanf(value, "%lf-%lf", &dlow, &dhigh) != 2) {
	434	ret = -1;
	435	break;
	436	} else {
	437	range[0] = g_variant_new_double(dlow);
	438	range[1] = g_variant_new_double(dhigh);
	439	src->data = g_variant_new_tuple(range, 2);
	440	}
	441	break;
	442	case SR_T_KEYVALUE:
	443	/* Expects the argument to be in the form of key=value. */
	444	keyval = g_strsplit(value, "=", 2);
	445	if (!keyval[0] \|\| !keyval[1]) {
	446	g_strfreev(keyval);
	447	ret = -1;
	448	break;
	449	} else {
	450	vbl = g_variant_builder_new(G_VARIANT_TYPE_DICTIONARY);
	451	g_variant_builder_add(vbl, "{ss}",
	452	keyval[0], keyval[1]);
	453	src->data = g_variant_builder_end(vbl);
	454	g_strfreev(keyval);
	455	}
	456	break;
	457	default:
	458	g_critical("Unknown data type specified for option '%s' "
	459	"(driver implementation bug?).", key);
	460	ret = -1;
	461	}
	462
	463	if (ret < 0)
	464	g_critical("Invalid value: '%s' for option '%s'", value, key);
	465
	466	return ret;
	467	}
	468
	469	int set_dev_options(struct sr_dev_inst sdi, GHashTable args)
	470	{
	471	struct sr_config src;
	472	struct sr_channel_group *cg;
	473	GHashTableIter iter;
	474	gpointer key, value;
	475	int ret;
	476
	477	g_hash_table_iter_init(&iter, args);
	478	while (g_hash_table_iter_next(&iter, &key, &value)) {
	479	if ((ret = opt_to_gvar(key, value, &src)) != 0)
	480	return ret;
	481	cg = select_channel_group(sdi);
	482	if ((ret = maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, cg,
	483	src.key, src.data)) != SR_OK) {
	484	g_critical("Failed to set device option '%s': %s.",
	485	(char *)key, sr_strerror(ret));
	486	return ret;
	487	}
	488	}
	489
	490	return SR_OK;
	491	}
	492
	493	void run_session(void)
	494	{
	495	GSList devices, real_devices, *sd;
	496	GHashTable *devargs;
	497	GVariant *gvar;
	498	struct sr_session *session;
	499	struct sr_trigger *trigger;
	500	struct sr_dev_inst *sdi;
	501	uint64_t min_samples, max_samples;
	502	gsize n_elements, i;
	503	const uint32_t *dev_opts;
	504	int is_demo_dev;
	505	struct sr_dev_driver *driver;
	506	const struct sr_transform *t;
	507
	508	devices = device_scan();
	509	if (!devices) {
	510	g_critical("No devices found.");
	511	return;
	512	}
	513
	514	real_devices = NULL;
	515	for (sd = devices; sd; sd = sd->next) {
	516	sdi = sd->data;
	517
	518	driver = sr_dev_inst_driver_get(sdi);
	519
	520	if (sr_config_list(driver, sdi, NULL, SR_CONF_DEVICE_OPTIONS, &gvar) != SR_OK) {
	521	g_critical("Failed to query list device options.");
	522	return;
	523	}
	524
	525	dev_opts = g_variant_get_fixed_array(gvar, &n_elements, sizeof(uint32_t));
	526
	527	is_demo_dev = 0;
	528	for (i = 0; i < n_elements; i++) {
	529	if (dev_opts[i] == SR_CONF_DEMO_DEV)
	530	is_demo_dev = 1;
	531	}
	532
	533	g_variant_unref(gvar);
	534
	535	if (!is_demo_dev)
	536	real_devices = g_slist_append(real_devices, sdi);
	537	}
	538
	539	if (g_slist_length(devices) > 1) {
	540	if (g_slist_length(real_devices) != 1) {
	541	g_critical("sigrok-cli only supports one device for capturing.");
	542	return;
	543	} else {
	544	/* We only have one non-demo device. */
	545	g_slist_free(devices);
	546	devices = real_devices;
	547	real_devices = NULL;
	548	}
	549	}
	550
	551	sdi = devices->data;
	552	g_slist_free(devices);
	553	g_slist_free(real_devices);
	554
	555	sr_session_new(sr_ctx, &session);
	556	sr_session_datafeed_callback_add(session, datafeed_in, NULL);
	557
	558	if (sr_dev_open(sdi) != SR_OK) {
	559	g_critical("Failed to open device.");
	560	return;
	561	}
	562
	563	if (sr_session_dev_add(session, sdi) != SR_OK) {
	564	g_critical("Failed to add device to session.");
	565	sr_session_destroy(session);
	566	return;
	567	}
	568
	569	if (opt_config) {
	570	if ((devargs = parse_generic_arg(opt_config, FALSE))) {
	571	if (set_dev_options(sdi, devargs) != SR_OK)
	572	return;
	573	g_hash_table_destroy(devargs);
	574	}
	575	}
	576
	577	if (select_channels(sdi) != SR_OK) {
	578	g_critical("Failed to set channels.");
	579	sr_session_destroy(session);
	580	return;
	581	}
	582
	583	if (opt_triggers) {
	584	if (!parse_triggerstring(sdi, opt_triggers, &trigger)) {
	585	sr_session_destroy(session);
	586	return;
	587	}
	588	if (sr_session_trigger_set(session, trigger) != SR_OK) {
	589	sr_session_destroy(session);
	590	return;
	591	}
	592	}
	593
	594	if (opt_continuous) {
	595	if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
	596	g_critical("This device does not support continuous sampling.");
	597	sr_session_destroy(session);
	598	return;
	599	}
	600	}
	601
	602	if (opt_time) {
	603	if (set_limit_time(sdi) != SR_OK) {
	604	sr_session_destroy(session);
	605	return;
	606	}
	607	}
	608
	609	if (opt_samples) {
	610	if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
	611	g_critical("Invalid sample limit '%s'.", opt_samples);
	612	sr_session_destroy(session);
	613	return;
	614	}
	615	if (maybe_config_list(driver, sdi, NULL, SR_CONF_LIMIT_SAMPLES,
	616	&gvar) == SR_OK) {
	617	/*
	618	* The device has no compression, or compression is turned
	619	* off, and publishes its sample memory size.
	620	*/
	621	g_variant_get(gvar, "(tt)", &min_samples, &max_samples);
	622	g_variant_unref(gvar);
	623	if (limit_samples < min_samples) {
	624	g_critical("The device stores at least %"PRIu64
	625	" samples with the current settings.", min_samples);
	626	}
	627	if (limit_samples > max_samples) {
	628	g_critical("The device can store only %"PRIu64
	629	" samples with the current settings.", max_samples);
	630	}
	631	}
	632	gvar = g_variant_new_uint64(limit_samples);
	633	if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
	634	g_critical("Failed to configure sample limit.");
	635	sr_session_destroy(session);
	636	return;
	637	}
	638	}
	639
	640	if (opt_frames) {
	641	if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
	642	g_critical("Invalid sample limit '%s'.", opt_samples);
	643	sr_session_destroy(session);
	644	return;
	645	}
	646	gvar = g_variant_new_uint64(limit_frames);
	647	if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
	648	g_critical("Failed to configure frame limit.");
	649	sr_session_destroy(session);
	650	return;
	651	}
	652	}
	653
	654	if (!(t = setup_transform_module(sdi)))
	655	g_critical("Failed to initialize transform module.");
	656
	657	if (sr_session_start(session) != SR_OK) {
	658	g_critical("Failed to start session.");
	659	sr_session_destroy(session);
	660	return;
	661	}
	662
	663	if (opt_continuous)
	664	add_anykey(session);
	665
	666	sr_session_run(session);
	667
	668	if (opt_continuous)
	669	clear_anykey();
	670
	671	sr_session_datafeed_callback_remove_all(session);
	672	sr_session_destroy(session);
	673
	674	}