[libsigrok.git] / src / hardware / demo / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
 * Copyright (C) 2011 Olivier Fauchon <olivier@aixmarseille.com>
 * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
 * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.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 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, see <http://www.gnu.org/licenses/>.
 */

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

#define DEFAULT_NUM_LOGIC_CHANNELS	8
#define DEFAULT_ENABLED_LOGIC_CHANNELS	8
#define DEFAULT_LOGIC_PATTERN		PATTERN_SIGROK

#define DEFAULT_NUM_ANALOG_CHANNELS	4
#define DEFAULT_ENABLED_ANALOG_CHANNELS	4
#define DEFAULT_ANALOG_AMPLITUDE	10

static const char *logic_pattern_str[] = {
	"sigrok",
	"random",
	"incremental",
	"walking one",
	"walking zero",
	"all-low",
	"all-high",
	"squid",
};

static const uint32_t drvopts[] = {
	SR_CONF_DEMO_DEV,
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_OSCILLOSCOPE,
};

static const uint32_t scanopts[] = {
	SR_CONF_NUM_LOGIC_CHANNELS,
	SR_CONF_NUM_ANALOG_CHANNELS,
};

static const uint32_t devopts[] = {
	SR_CONF_CONTINUOUS,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_AVERAGING | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_AVG_SAMPLES | SR_CONF_GET | SR_CONF_SET,
};

static const uint32_t devopts_cg_logic[] = {
	SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const uint32_t devopts_cg_analog_group[] = {
	SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET,
};

static const uint32_t devopts_cg_analog_channel[] = {
	SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET,
};

static const uint64_t samplerates[] = {
	SR_HZ(1),
	SR_GHZ(1),
	SR_HZ(1),
};

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct dev_context *devc;
	struct sr_dev_inst *sdi;
	struct sr_channel *ch;
	struct sr_channel_group *cg, *acg;
	struct sr_config *src;
	struct analog_gen *ag;
	GSList *l;
	int num_logic_channels, num_analog_channels, pattern, i;
	char channel_name[16];
	gboolean enabled;

	num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS;
	num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_NUM_LOGIC_CHANNELS:
			num_logic_channels = g_variant_get_int32(src->data);
			break;
		case SR_CONF_NUM_ANALOG_CHANNELS:
			num_analog_channels = g_variant_get_int32(src->data);
			break;
		}
	}

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->model = g_strdup("Demo device");

	devc = g_malloc0(sizeof(struct dev_context));
	devc->cur_samplerate = SR_KHZ(200);
	devc->num_logic_channels = num_logic_channels;
	devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
	devc->logic_pattern = DEFAULT_LOGIC_PATTERN;
	devc->num_analog_channels = num_analog_channels;

	if (num_logic_channels > 0) {
		/* Logic channels, all in one channel group. */
		cg = g_malloc0(sizeof(struct sr_channel_group));
		cg->name = g_strdup("Logic");
		for (i = 0; i < num_logic_channels; i++) {
			sprintf(channel_name, "D%d", i);
			enabled = (i < DEFAULT_ENABLED_LOGIC_CHANNELS) ? TRUE : FALSE;
			ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, enabled, channel_name);
			cg->channels = g_slist_append(cg->channels, ch);
		}
		sdi->channel_groups = g_slist_append(NULL, cg);
	}

	/* Analog channels, channel groups and pattern generators. */
	if (num_analog_channels > 0) {
		pattern = 0;
		/* An "Analog" channel group with all analog channels in it. */
		acg = g_malloc0(sizeof(struct sr_channel_group));
		acg->name = g_strdup("Analog");
		sdi->channel_groups = g_slist_append(sdi->channel_groups, acg);

		devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
		for (i = 0; i < num_analog_channels; i++) {
			snprintf(channel_name, 16, "A%d", i);
			enabled = (i < DEFAULT_ENABLED_ANALOG_CHANNELS) ? TRUE : FALSE;
			ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG,
					enabled, channel_name);
			acg->channels = g_slist_append(acg->channels, ch);

			/* Every analog channel gets its own channel group as well. */
			cg = g_malloc0(sizeof(struct sr_channel_group));
			cg->name = g_strdup(channel_name);
			cg->channels = g_slist_append(NULL, ch);
			sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);

			/* Every channel gets a generator struct. */
			ag = g_malloc(sizeof(struct analog_gen));
			ag->amplitude = DEFAULT_ANALOG_AMPLITUDE;
			sr_analog_init(&ag->packet, &ag->encoding, &ag->meaning, &ag->spec, 2);
			ag->packet.meaning->channels = cg->channels;
			ag->packet.meaning->mq = 0;
			ag->packet.meaning->mqflags = 0;
			ag->packet.meaning->unit = SR_UNIT_VOLT;
			ag->packet.data = ag->pattern_data;
			ag->pattern = pattern;
			ag->avg_val = 0.0f;
			ag->num_avgs = 0;
			g_hash_table_insert(devc->ch_ag, ch, ag);

			if (++pattern == ARRAY_SIZE(analog_pattern_str))
				pattern = 0;
		}
	}

	sdi->priv = devc;

	return std_scan_complete(di, g_slist_append(NULL, sdi));
}

static int dev_open(struct sr_dev_inst *sdi)
{
	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static void clear_helper(void *priv)
{
	struct dev_context *devc;
	GHashTableIter iter;
	void *value;

	devc = priv;

	/* Analog generators. */
	g_hash_table_iter_init(&iter, devc->ch_ag);
	while (g_hash_table_iter_next(&iter, NULL, &value))
		g_free(value);
	g_hash_table_unref(devc->ch_ag);
	g_free(devc);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear(di, clear_helper);
}

static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	struct sr_channel *ch;
	struct analog_gen *ag;
	int pattern;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;
	switch (key) {
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(devc->cur_samplerate);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		*data = g_variant_new_uint64(devc->limit_samples);
		break;
	case SR_CONF_LIMIT_MSEC:
		*data = g_variant_new_uint64(devc->limit_msec);
		break;
	case SR_CONF_AVERAGING:
		*data = g_variant_new_boolean(devc->avg);
		break;
	case SR_CONF_AVG_SAMPLES:
		*data = g_variant_new_uint64(devc->avg_samples);
		break;
	case SR_CONF_PATTERN_MODE:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		/* Any channel in the group will do. */
		ch = cg->channels->data;
		if (ch->type == SR_CHANNEL_LOGIC) {
			pattern = devc->logic_pattern;
			*data = g_variant_new_string(logic_pattern_str[pattern]);
		} else if (ch->type == SR_CHANNEL_ANALOG) {
			ag = g_hash_table_lookup(devc->ch_ag, ch);
			pattern = ag->pattern;
			*data = g_variant_new_string(analog_pattern_str[pattern]);
		} else
			return SR_ERR_BUG;
		break;
	case SR_CONF_AMPLITUDE:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		/* Any channel in the group will do. */
		ch = cg->channels->data;
		if (ch->type != SR_CHANNEL_ANALOG)
			return SR_ERR_ARG;
		ag = g_hash_table_lookup(devc->ch_ag, ch);
		*data = g_variant_new_double(ag->amplitude);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	struct analog_gen *ag;
	struct sr_channel *ch;
	GSList *l;
	int logic_pattern, analog_pattern, ret;
	unsigned int i;
	const char *stropt;

	devc = sdi->priv;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SAMPLERATE:
		devc->cur_samplerate = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_msec = 0;
		devc->limit_samples = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_MSEC:
		devc->limit_msec = g_variant_get_uint64(data);
		devc->limit_samples = 0;
		break;
	case SR_CONF_AVERAGING:
		devc->avg = g_variant_get_boolean(data);
		sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling");
		break;
	case SR_CONF_AVG_SAMPLES:
		devc->avg_samples = g_variant_get_uint64(data);
		sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples);
		break;
	case SR_CONF_PATTERN_MODE:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		stropt = g_variant_get_string(data, NULL);
		logic_pattern = analog_pattern = -1;
		for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
			if (!strcmp(stropt, logic_pattern_str[i])) {
				logic_pattern = i;
				break;
			}
		}
		for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
			if (!strcmp(stropt, analog_pattern_str[i])) {
				analog_pattern = i;
				break;
			}
		}
		if (logic_pattern == -1 && analog_pattern == -1)
			return SR_ERR_ARG;
		for (l = cg->channels; l; l = l->next) {
			ch = l->data;
			if (ch->type == SR_CHANNEL_LOGIC) {
				if (logic_pattern == -1)
					return SR_ERR_ARG;
				sr_dbg("Setting logic pattern to %s",
						logic_pattern_str[logic_pattern]);
				devc->logic_pattern = logic_pattern;
				/* Might as well do this now, these are static. */
				if (logic_pattern == PATTERN_ALL_LOW)
					memset(devc->logic_data, 0x00, LOGIC_BUFSIZE);
				else if (logic_pattern == PATTERN_ALL_HIGH)
					memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
			} else if (ch->type == SR_CHANNEL_ANALOG) {
				if (analog_pattern == -1)
					return SR_ERR_ARG;
				sr_dbg("Setting analog pattern for channel %s to %s",
						ch->name, analog_pattern_str[analog_pattern]);
				ag = g_hash_table_lookup(devc->ch_ag, ch);
				ag->pattern = analog_pattern;
			} else
				return SR_ERR_BUG;
		}
		break;
	case SR_CONF_AMPLITUDE:
		if (!cg)
			return SR_ERR_CHANNEL_GROUP;
		for (l = cg->channels; l; l = l->next) {
			ch = l->data;
			if (ch->type != SR_CHANNEL_ANALOG)
				return SR_ERR_ARG;
			ag = g_hash_table_lookup(devc->ch_ag, ch);
			ag->amplitude = g_variant_get_double(data);
		}
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct sr_channel *ch;
	GVariant *gvar;
	GVariantBuilder gvb;

	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
		return SR_OK;
	}

	if (!sdi)
		return SR_ERR_ARG;

	if (!cg) {
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
			break;
		case SR_CONF_SAMPLERATE:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
			gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
					ARRAY_SIZE(samplerates), sizeof(uint64_t));
			g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
			*data = g_variant_builder_end(&gvb);
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		ch = cg->channels->data;
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			if (ch->type == SR_CHANNEL_LOGIC)
				*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
						devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic),
						sizeof(uint32_t));
			else if (ch->type == SR_CHANNEL_ANALOG) {
				if (strcmp(cg->name, "Analog") == 0)
					*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
							devopts_cg_analog_group, ARRAY_SIZE(devopts_cg_analog_group),
							sizeof(uint32_t));
				else
					*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
							devopts_cg_analog_channel, ARRAY_SIZE(devopts_cg_analog_channel),
							sizeof(uint32_t));
			}
			else
				return SR_ERR_BUG;
			break;
		case SR_CONF_PATTERN_MODE:
			/* The analog group (with all 4 channels) shall not have a pattern property. */
			if (strcmp(cg->name, "Analog") == 0)
				return SR_ERR_NA;

			if (ch->type == SR_CHANNEL_LOGIC)
				*data = g_variant_new_strv(logic_pattern_str,
						ARRAY_SIZE(logic_pattern_str));
			else if (ch->type == SR_CHANNEL_ANALOG)
				*data = g_variant_new_strv(analog_pattern_str,
						ARRAY_SIZE(analog_pattern_str));
			else
				return SR_ERR_BUG;
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	GHashTableIter iter;
	void *value;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	devc = sdi->priv;
	devc->sent_samples = 0;

	g_hash_table_iter_init(&iter, devc->ch_ag);
	while (g_hash_table_iter_next(&iter, NULL, &value))
		demo_generate_analog_pattern(value, devc->cur_samplerate);

	sr_session_source_add(sdi->session, -1, 0, 100,
			demo_prepare_data, (struct sr_dev_inst *)sdi);

	std_session_send_df_header(sdi);

	/* We use this timestamp to decide how many more samples to send. */
	devc->start_us = g_get_monotonic_time();
	devc->spent_us = 0;
	devc->step = 0;

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	sr_dbg("Stopping acquisition.");
	sr_session_source_remove(sdi->session, -1);
	std_session_send_df_end(sdi);

	return SR_OK;
}

static struct sr_dev_driver demo_driver_info = {
	.name = "demo",
	.longname = "Demo driver and pattern generator",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(demo_driver_info);
Commit	Line	Data
6239c175	1	/*
50985c20	2	* This file is part of the libsigrok project.
6239c175 UH	3	*
6239c175 UH	4	* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
fc96e6f8	5	* Copyright (C) 2011 Olivier Fauchon <olivier@aixmarseille.com>
c216d623	6	* Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
7a8a1aba	7	* Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.com>
6239c175 UH	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
2ea1fdf1	20	* along with this program; if not, see <http://www.gnu.org/licenses/>.
6239c175 UH	21	*/
6239c175 UH	22
6ec6c43b	23	#include <config.h>
6239c175 UH	24	#include <stdlib.h>
6239c175 UH	25	#include <string.h>
4374219b	26	#include <math.h>
c1aae900	27	#include <libsigrok/libsigrok.h>
45c59c8b	28	#include "libsigrok-internal.h"
ba508e22	29	#include "protocol.h"
92bcedf6	30
7db90279	31	#define DEFAULT_NUM_LOGIC_CHANNELS 8
b1e6eec6 GS	32	#define DEFAULT_ENABLED_LOGIC_CHANNELS 8
b1e6eec6 GS	33	#define DEFAULT_LOGIC_PATTERN PATTERN_SIGROK
c03ed397	34
b1e6eec6 GS	35	#define DEFAULT_NUM_ANALOG_CHANNELS 4
b1e6eec6 GS	36	#define DEFAULT_ENABLED_ANALOG_CHANNELS 4
d9251a2c	37	#define DEFAULT_ANALOG_AMPLITUDE 10
85b5af06	38
8b2d41ed	39	static const char *logic_pattern_str[] = {
61c39f54 BV	40	"sigrok",
	41	"random",
	42	"incremental",
845060fa SA	43	"walking one",
845060fa SA	44	"walking zero",
61c39f54 BV	45	"all-low",
61c39f54 BV	46	"all-high",
81d53a29	47	"squid",
61c39f54 BV	48	};
61c39f54 BV	49
1e4a7cac BV	50	static const uint32_t drvopts[] = {
	51	SR_CONF_DEMO_DEV,
	52	SR_CONF_LOGIC_ANALYZER,
	53	SR_CONF_OSCILLOSCOPE,
	54	};
	55
584560f1	56	static const uint32_t scanopts[] = {
3f239f08 UH	57	SR_CONF_NUM_LOGIC_CHANNELS,
3f239f08 UH	58	SR_CONF_NUM_ANALOG_CHANNELS,
e15f48c2	59	};
85b5af06	60
390795c0	61	static const uint32_t devopts[] = {
e91bb0a6	62	SR_CONF_CONTINUOUS,
5827f61b BV	63	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
5827f61b BV	64	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
390795c0	65	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
7a8a1aba BG	66	SR_CONF_AVERAGING \| SR_CONF_GET \| SR_CONF_SET,
7a8a1aba BG	67	SR_CONF_AVG_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
390795c0 BV	68	};
	69
	70	static const uint32_t devopts_cg_logic[] = {
f12d9979	71	SR_CONF_PATTERN_MODE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
49224c28 BV	72	};
49224c28 BV	73
e2b99f04 SA	74	static const uint32_t devopts_cg_analog_group[] = {
	75	SR_CONF_AMPLITUDE \| SR_CONF_GET \| SR_CONF_SET,
	76	};
	77
	78	static const uint32_t devopts_cg_analog_channel[] = {
f12d9979 BV	79	SR_CONF_PATTERN_MODE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
f12d9979 BV	80	SR_CONF_AMPLITUDE \| SR_CONF_GET \| SR_CONF_SET,
7a1da331 BV	81	};
7a1da331 BV	82
d00088ca BV	83	static const uint64_t samplerates[] = {
	84	SR_HZ(1),
	85	SR_GHZ(1),
	86	SR_HZ(1),
4bfbf9fc BV	87	};
4bfbf9fc BV	88
4f840ce9	89	static GSList scan(struct sr_dev_driver di, GSList *options)
6239c175	90	{
33ef7573	91	struct dev_context *devc;
c07f60e7	92	struct sr_dev_inst *sdi;
ba7dd8bb	93	struct sr_channel *ch;
49224c28	94	struct sr_channel_group cg, acg;
c07f60e7	95	struct sr_config *src;
8b2d41ed	96	struct analog_gen *ag;
43376f33	97	GSList *l;
ba7dd8bb UH	98	int num_logic_channels, num_analog_channels, pattern, i;
ba7dd8bb UH	99	char channel_name[16];
b1e6eec6	100	gboolean enabled;
067d0716	101
3f239f08 UH	102	num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS;
3f239f08 UH	103	num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS;
c07f60e7 BV	104	for (l = options; l; l = l->next) {
	105	src = l->data;
	106	switch (src->key) {
3f239f08	107	case SR_CONF_NUM_LOGIC_CHANNELS:
ba7dd8bb	108	num_logic_channels = g_variant_get_int32(src->data);
c07f60e7	109	break;
3f239f08	110	case SR_CONF_NUM_ANALOG_CHANNELS:
ba7dd8bb	111	num_analog_channels = g_variant_get_int32(src->data);
c07f60e7 BV	112	break;
	113	}
	114	}
85b5af06	115
aac29cc1	116	sdi = g_malloc0(sizeof(struct sr_dev_inst));
45884333	117	sdi->status = SR_ST_INACTIVE;
4b664cd6	118	sdi->model = g_strdup("Demo device");
e15f48c2	119
a49a320d	120	devc = g_malloc0(sizeof(struct dev_context));
8b2d41ed	121	devc->cur_samplerate = SR_KHZ(200);
ba7dd8bb UH	122	devc->num_logic_channels = num_logic_channels;
ba7dd8bb UH	123	devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
b1e6eec6	124	devc->logic_pattern = DEFAULT_LOGIC_PATTERN;
ba7dd8bb	125	devc->num_analog_channels = num_analog_channels;
8b2d41ed	126
f18e0db3 LPC	127	if (num_logic_channels > 0) {
	128	/* Logic channels, all in one channel group. */
	129	cg = g_malloc0(sizeof(struct sr_channel_group));
	130	cg->name = g_strdup("Logic");
	131	for (i = 0; i < num_logic_channels; i++) {
	132	sprintf(channel_name, "D%d", i);
b1e6eec6 GS	133	enabled = (i < DEFAULT_ENABLED_LOGIC_CHANNELS) ? TRUE : FALSE;
b1e6eec6 GS	134	ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, enabled, channel_name);
f18e0db3 LPC	135	cg->channels = g_slist_append(cg->channels, ch);
	136	}
	137	sdi->channel_groups = g_slist_append(NULL, cg);
87ca93c5 BV	138	}
87ca93c5 BV	139
ba7dd8bb	140	/* Analog channels, channel groups and pattern generators. */
f18e0db3 LPC	141	if (num_analog_channels > 0) {
	142	pattern = 0;
	143	/* An "Analog" channel group with all analog channels in it. */
	144	acg = g_malloc0(sizeof(struct sr_channel_group));
	145	acg->name = g_strdup("Analog");
	146	sdi->channel_groups = g_slist_append(sdi->channel_groups, acg);
	147
	148	devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
	149	for (i = 0; i < num_analog_channels; i++) {
	150	snprintf(channel_name, 16, "A%d", i);
b1e6eec6	151	enabled = (i < DEFAULT_ENABLED_ANALOG_CHANNELS) ? TRUE : FALSE;
f18e0db3	152	ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG,
b1e6eec6	153	enabled, channel_name);
f18e0db3 LPC	154	acg->channels = g_slist_append(acg->channels, ch);
	155
	156	/* Every analog channel gets its own channel group as well. */
	157	cg = g_malloc0(sizeof(struct sr_channel_group));
	158	cg->name = g_strdup(channel_name);
	159	cg->channels = g_slist_append(NULL, ch);
	160	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	161
	162	/* Every channel gets a generator struct. */
	163	ag = g_malloc(sizeof(struct analog_gen));
	164	ag->amplitude = DEFAULT_ANALOG_AMPLITUDE;
3be044aa	165	sr_analog_init(&ag->packet, &ag->encoding, &ag->meaning, &ag->spec, 2);
4b770103 UH	166	ag->packet.meaning->channels = cg->channels;
	167	ag->packet.meaning->mq = 0;
	168	ag->packet.meaning->mqflags = 0;
	169	ag->packet.meaning->unit = SR_UNIT_VOLT;
f18e0db3 LPC	170	ag->packet.data = ag->pattern_data;
	171	ag->pattern = pattern;
	172	ag->avg_val = 0.0f;
	173	ag->num_avgs = 0;
	174	g_hash_table_insert(devc->ch_ag, ch, ag);
	175
	176	if (++pattern == ARRAY_SIZE(analog_pattern_str))
	177	pattern = 0;
	178	}
33ef7573	179	}
33ef7573 JH	180
	181	sdi->priv = devc;
	182
43376f33	183	return std_scan_complete(di, g_slist_append(NULL, sdi));
6239c175 UH	184	}
6239c175 UH	185
6078d2c9	186	static int dev_open(struct sr_dev_inst *sdi)
6239c175	187	{
e73ffd42	188	sdi->status = SR_ST_ACTIVE;
697785d1	189
e46b8fb1	190	return SR_OK;
6239c175 UH	191	}
6239c175 UH	192
6078d2c9	193	static int dev_close(struct sr_dev_inst *sdi)
6239c175	194	{
decfe89d	195	sdi->status = SR_ST_INACTIVE;
697785d1 UH	196
697785d1 UH	197	return SR_OK;
6239c175 UH	198	}
6239c175 UH	199
ed0b7fed BV	200	static void clear_helper(void *priv)
	201	{
	202	struct dev_context *devc;
49224c28 BV	203	GHashTableIter iter;
49224c28 BV	204	void *value;
ed0b7fed BV	205
ed0b7fed BV	206	devc = priv;
49224c28 BV	207
	208	/* Analog generators. */
	209	g_hash_table_iter_init(&iter, devc->ch_ag);
	210	while (g_hash_table_iter_next(&iter, NULL, &value))
	211	g_free(value);
	212	g_hash_table_unref(devc->ch_ag);
ed0b7fed BV	213	g_free(devc);
	214	}
	215
6ab68731	216	static int dev_clear(const struct sr_dev_driver *di)
6239c175	217	{
ed0b7fed	218	return std_dev_clear(di, clear_helper);
6239c175 UH	219	}
6239c175 UH	220
584560f1	221	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	222	const struct sr_channel_group *cg)
6239c175	223	{
c07f60e7	224	struct dev_context *devc;
ba7dd8bb	225	struct sr_channel *ch;
2388ae86 BV	226	struct analog_gen *ag;
2388ae86 BV	227	int pattern;
6f57fd96	228
2388ae86 BV	229	if (!sdi)
2388ae86 BV	230	return SR_ERR_ARG;
8f996b89	231
c07f60e7	232	devc = sdi->priv;
584560f1	233	switch (key) {
123e1313	234	case SR_CONF_SAMPLERATE:
a7684294	235	*data = g_variant_new_uint64(devc->cur_samplerate);
6239c175	236	break;
2474d87e	237	case SR_CONF_LIMIT_SAMPLES:
a7684294	238	*data = g_variant_new_uint64(devc->limit_samples);
2474d87e BV	239	break;
2474d87e BV	240	case SR_CONF_LIMIT_MSEC:
a7684294	241	*data = g_variant_new_uint64(devc->limit_msec);
2474d87e	242	break;
7a8a1aba BG	243	case SR_CONF_AVERAGING:
	244	*data = g_variant_new_boolean(devc->avg);
	245	break;
	246	case SR_CONF_AVG_SAMPLES:
	247	*data = g_variant_new_uint64(devc->avg_samples);
	248	break;
2474d87e	249	case SR_CONF_PATTERN_MODE:
53b4680f	250	if (!cg)
660e398f	251	return SR_ERR_CHANNEL_GROUP;
49224c28	252	/* Any channel in the group will do. */
ba7dd8bb	253	ch = cg->channels->data;
3f239f08	254	if (ch->type == SR_CHANNEL_LOGIC) {
2388ae86 BV	255	pattern = devc->logic_pattern;
2388ae86 BV	256	*data = g_variant_new_string(logic_pattern_str[pattern]);
3f239f08	257	} else if (ch->type == SR_CHANNEL_ANALOG) {
49224c28	258	ag = g_hash_table_lookup(devc->ch_ag, ch);
2388ae86 BV	259	pattern = ag->pattern;
	260	*data = g_variant_new_string(analog_pattern_str[pattern]);
	261	} else
	262	return SR_ERR_BUG;
c07f60e7	263	break;
dddabe37 BV	264	case SR_CONF_AMPLITUDE:
	265	if (!cg)
	266	return SR_ERR_CHANNEL_GROUP;
49224c28	267	/* Any channel in the group will do. */
dddabe37 BV	268	ch = cg->channels->data;
	269	if (ch->type != SR_CHANNEL_ANALOG)
	270	return SR_ERR_ARG;
49224c28	271	ag = g_hash_table_lookup(devc->ch_ag, ch);
dddabe37 BV	272	*data = g_variant_new_double(ag->amplitude);
dddabe37 BV	273	break;
7dfcf010	274	default:
bd6fbf62	275	return SR_ERR_NA;
6239c175 UH	276	}
6239c175 UH	277
dfb0fa1a	278	return SR_OK;
6239c175 UH	279	}
6239c175 UH	280
584560f1	281	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	282	const struct sr_channel_group *cg)
6239c175	283	{
8b2d41ed	284	struct dev_context *devc;
4374219b	285	struct analog_gen *ag;
ba7dd8bb	286	struct sr_channel *ch;
49224c28 BV	287	GSList *l;
49224c28 BV	288	int logic_pattern, analog_pattern, ret;
61c39f54	289	unsigned int i;
1b79df2f	290	const char *stropt;
6239c175	291
8b2d41ed	292	devc = sdi->priv;
6239c175	293
e73ffd42 BV	294	if (sdi->status != SR_ST_ACTIVE)
	295	return SR_ERR_DEV_CLOSED;
	296
2388ae86	297	ret = SR_OK;
584560f1	298	switch (key) {
2388ae86	299	case SR_CONF_SAMPLERATE:
a7684294	300	devc->cur_samplerate = g_variant_get_uint64(data);
2388ae86 BV	301	break;
2388ae86 BV	302	case SR_CONF_LIMIT_SAMPLES:
a7684294 JH	303	devc->limit_msec = 0;
a7684294 JH	304	devc->limit_samples = g_variant_get_uint64(data);
2388ae86 BV	305	break;
2388ae86 BV	306	case SR_CONF_LIMIT_MSEC:
a7684294 JH	307	devc->limit_msec = g_variant_get_uint64(data);
a7684294 JH	308	devc->limit_samples = 0;
2388ae86	309	break;
7a8a1aba BG	310	case SR_CONF_AVERAGING:
	311	devc->avg = g_variant_get_boolean(data);
	312	sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling");
	313	break;
	314	case SR_CONF_AVG_SAMPLES:
	315	devc->avg_samples = g_variant_get_uint64(data);
	316	sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples);
	317	break;
2388ae86	318	case SR_CONF_PATTERN_MODE:
53b4680f	319	if (!cg)
660e398f	320	return SR_ERR_CHANNEL_GROUP;
d00088ca	321	stropt = g_variant_get_string(data, NULL);
49224c28 BV	322	logic_pattern = analog_pattern = -1;
	323	for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
	324	if (!strcmp(stropt, logic_pattern_str[i])) {
	325	logic_pattern = i;
	326	break;
8b2d41ed	327	}
49224c28 BV	328	}
	329	for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
	330	if (!strcmp(stropt, analog_pattern_str[i])) {
	331	analog_pattern = i;
	332	break;
8b2d41ed	333	}
49224c28 BV	334	}
	335	if (logic_pattern == -1 && analog_pattern == -1)
	336	return SR_ERR_ARG;
	337	for (l = cg->channels; l; l = l->next) {
	338	ch = l->data;
	339	if (ch->type == SR_CHANNEL_LOGIC) {
	340	if (logic_pattern == -1)
	341	return SR_ERR_ARG;
	342	sr_dbg("Setting logic pattern to %s",
	343	logic_pattern_str[logic_pattern]);
	344	devc->logic_pattern = logic_pattern;
	345	/* Might as well do this now, these are static. */
	346	if (logic_pattern == PATTERN_ALL_LOW)
	347	memset(devc->logic_data, 0x00, LOGIC_BUFSIZE);
	348	else if (logic_pattern == PATTERN_ALL_HIGH)
	349	memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
	350	} else if (ch->type == SR_CHANNEL_ANALOG) {
	351	if (analog_pattern == -1)
	352	return SR_ERR_ARG;
	353	sr_dbg("Setting analog pattern for channel %s to %s",
	354	ch->name, analog_pattern_str[analog_pattern]);
	355	ag = g_hash_table_lookup(devc->ch_ag, ch);
	356	ag->pattern = analog_pattern;
	357	} else
	358	return SR_ERR_BUG;
	359	}
2388ae86	360	break;
dddabe37 BV	361	case SR_CONF_AMPLITUDE:
	362	if (!cg)
	363	return SR_ERR_CHANNEL_GROUP;
49224c28 BV	364	for (l = cg->channels; l; l = l->next) {
	365	ch = l->data;
	366	if (ch->type != SR_CHANNEL_ANALOG)
	367	return SR_ERR_ARG;
	368	ag = g_hash_table_lookup(devc->ch_ag, ch);
	369	ag->amplitude = g_variant_get_double(data);
	370	}
dddabe37	371	break;
2388ae86	372	default:
bd6fbf62	373	ret = SR_ERR_NA;
6239c175 UH	374	}
	375
	376	return ret;
	377	}
	378
584560f1	379	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	380	const struct sr_channel_group *cg)
a1c743fc	381	{
ba7dd8bb	382	struct sr_channel *ch;
d00088ca BV	383	GVariant *gvar;
d00088ca BV	384	GVariantBuilder gvb;
a1c743fc	385
7a1da331	386	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	387	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	388	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
7a1da331 BV	389	return SR_OK;
	390	}
	391
390795c0 BV	392	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
390795c0 BV	393	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1e4a7cac	394	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
390795c0 BV	395	return SR_OK;
	396	}
	397
7a1da331 BV	398	if (!sdi)
	399	return SR_ERR_ARG;
	400
53b4680f	401	if (!cg) {
7a1da331 BV	402	switch (key) {
7a1da331 BV	403	case SR_CONF_DEVICE_OPTIONS:
584560f1	404	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1e4a7cac	405	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
7a1da331 BV	406	break;
	407	case SR_CONF_SAMPLERATE:
	408	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	409	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	410	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	411	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	412	*data = g_variant_builder_end(&gvb);
	413	break;
	414	default:
	415	return SR_ERR_NA;
	416	}
	417	} else {
ba7dd8bb	418	ch = cg->channels->data;
7a1da331 BV	419	switch (key) {
7a1da331 BV	420	case SR_CONF_DEVICE_OPTIONS:
49224c28	421	if (ch->type == SR_CHANNEL_LOGIC)
8249889d	422	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
49224c28	423	devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic),
584560f1	424	sizeof(uint32_t));
e2b99f04 SA	425	else if (ch->type == SR_CHANNEL_ANALOG) {
	426	if (strcmp(cg->name, "Analog") == 0)
	427	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	428	devopts_cg_analog_group, ARRAY_SIZE(devopts_cg_analog_group),
	429	sizeof(uint32_t));
	430	else
	431	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	432	devopts_cg_analog_channel, ARRAY_SIZE(devopts_cg_analog_channel),
	433	sizeof(uint32_t));
	434	}
49224c28 BV	435	else
49224c28 BV	436	return SR_ERR_BUG;
7a1da331 BV	437	break;
7a1da331 BV	438	case SR_CONF_PATTERN_MODE:
e2b99f04 SA	439	/* The analog group (with all 4 channels) shall not have a pattern property. */
	440	if (strcmp(cg->name, "Analog") == 0)
	441	return SR_ERR_NA;
	442
3f239f08	443	if (ch->type == SR_CHANNEL_LOGIC)
7a1da331 BV	444	*data = g_variant_new_strv(logic_pattern_str,
7a1da331 BV	445	ARRAY_SIZE(logic_pattern_str));
3f239f08	446	else if (ch->type == SR_CHANNEL_ANALOG)
7a1da331 BV	447	*data = g_variant_new_strv(analog_pattern_str,
7a1da331 BV	448	ARRAY_SIZE(analog_pattern_str));
2388ae86 BV	449	else
2388ae86 BV	450	return SR_ERR_BUG;
7a1da331 BV	451	break;
	452	default:
	453	return SR_ERR_NA;
	454	}
a1c743fc BV	455	}
	456
	457	return SR_OK;
	458	}
	459
695dc859	460	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
6239c175	461	{
61c39f54	462	struct dev_context *devc;
49224c28 BV	463	GHashTableIter iter;
49224c28 BV	464	void *value;
85b5af06	465
e73ffd42 BV	466	if (sdi->status != SR_ST_ACTIVE)
	467	return SR_ERR_DEV_CLOSED;
	468
61c39f54	469	devc = sdi->priv;
a49a320d	470	devc->sent_samples = 0;
85b5af06	471
49224c28 BV	472	g_hash_table_iter_init(&iter, devc->ch_ag);
49224c28 BV	473	while (g_hash_table_iter_next(&iter, NULL, &value))
ba508e22	474	demo_generate_analog_pattern(value, devc->cur_samplerate);
4374219b	475
98c01fe1	476	sr_session_source_add(sdi->session, -1, 0, 100,
ba508e22	477	demo_prepare_data, (struct sr_dev_inst *)sdi);
85b5af06	478
bee2b016	479	std_session_send_df_header(sdi);
f366e86c	480
3b203673	481	/* We use this timestamp to decide how many more samples to send. */
a49a320d DE	482	devc->start_us = g_get_monotonic_time();
a49a320d DE	483	devc->spent_us = 0;
471ac344	484	devc->step = 0;
3b203673	485
e46b8fb1	486	return SR_OK;
6239c175 UH	487	}
6239c175 UH	488
695dc859	489	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
6239c175	490	{
a84f6ad3	491	sr_dbg("Stopping acquisition.");
027bf077	492	sr_session_source_remove(sdi->session, -1);
bee2b016	493	std_session_send_df_end(sdi);
7fd3e859	494
3010f21c	495	return SR_OK;
6239c175 UH	496	}
6239c175 UH	497
dd5c48a6	498	static struct sr_dev_driver demo_driver_info = {
e519ba86 UH	499	.name = "demo",
	500	.longname = "Demo driver and pattern generator",
	501	.api_version = 1,
c2fdcc25	502	.init = std_init,
700d6b64	503	.cleanup = std_cleanup,
6078d2c9	504	.scan = scan,
c01bf34c	505	.dev_list = std_dev_list,
6ab68731	506	.dev_clear = dev_clear,
035a1078 BV	507	.config_get = config_get,
035a1078 BV	508	.config_set = config_set,
a1c743fc	509	.config_list = config_list,
6078d2c9 UH	510	.dev_open = dev_open,
	511	.dev_close = dev_close,
	512	.dev_acquisition_start = dev_acquisition_start,
	513	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	514	.context = NULL,
6239c175	515	};
dd5c48a6	516	SR_REGISTER_DEV_DRIVER(demo_driver_info);