[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_LOGIC_PATTERN		PATTERN_SIGROK

#define DEFAULT_NUM_ANALOG_CHANNELS	4
#define DEFAULT_ANALOG_AMPLITUDE	10

/* Note: No spaces allowed because of sigrok-cli. */
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];

	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);
			ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, 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. */
	devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
	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);

		for (i = 0; i < num_analog_channels; i++) {
			snprintf(channel_name, 16, "A%d", i);
			ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG,
					TRUE, 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	32	#define DEFAULT_LOGIC_PATTERN PATTERN_SIGROK
c03ed397	33
b1e6eec6	34	#define DEFAULT_NUM_ANALOG_CHANNELS 4
d9251a2c	35	#define DEFAULT_ANALOG_AMPLITUDE 10
85b5af06	36
77463bd3	37	/* Note: No spaces allowed because of sigrok-cli. */
8b2d41ed	38	static const char *logic_pattern_str[] = {
61c39f54 BV	39	"sigrok",
	40	"random",
	41	"incremental",
77463bd3 SA	42	"walking-one",
77463bd3 SA	43	"walking-zero",
61c39f54 BV	44	"all-low",
61c39f54 BV	45	"all-high",
81d53a29	46	"squid",
61c39f54 BV	47	};
61c39f54 BV	48
1e4a7cac BV	49	static const uint32_t drvopts[] = {
	50	SR_CONF_DEMO_DEV,
	51	SR_CONF_LOGIC_ANALYZER,
	52	SR_CONF_OSCILLOSCOPE,
	53	};
	54
584560f1	55	static const uint32_t scanopts[] = {
3f239f08 UH	56	SR_CONF_NUM_LOGIC_CHANNELS,
3f239f08 UH	57	SR_CONF_NUM_ANALOG_CHANNELS,
e15f48c2	58	};
85b5af06	59
390795c0	60	static const uint32_t devopts[] = {
e91bb0a6	61	SR_CONF_CONTINUOUS,
5827f61b BV	62	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
5827f61b BV	63	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
390795c0	64	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
7a8a1aba BG	65	SR_CONF_AVERAGING \| SR_CONF_GET \| SR_CONF_SET,
7a8a1aba BG	66	SR_CONF_AVG_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
390795c0 BV	67	};
	68
	69	static const uint32_t devopts_cg_logic[] = {
f12d9979	70	SR_CONF_PATTERN_MODE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
49224c28 BV	71	};
49224c28 BV	72
e2b99f04 SA	73	static const uint32_t devopts_cg_analog_group[] = {
	74	SR_CONF_AMPLITUDE \| SR_CONF_GET \| SR_CONF_SET,
	75	};
	76
	77	static const uint32_t devopts_cg_analog_channel[] = {
f12d9979 BV	78	SR_CONF_PATTERN_MODE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
f12d9979 BV	79	SR_CONF_AMPLITUDE \| SR_CONF_GET \| SR_CONF_SET,
7a1da331 BV	80	};
7a1da331 BV	81
d00088ca BV	82	static const uint64_t samplerates[] = {
	83	SR_HZ(1),
	84	SR_GHZ(1),
	85	SR_HZ(1),
4bfbf9fc BV	86	};
4bfbf9fc BV	87
4f840ce9	88	static GSList scan(struct sr_dev_driver di, GSList *options)
6239c175	89	{
33ef7573	90	struct dev_context *devc;
c07f60e7	91	struct sr_dev_inst *sdi;
ba7dd8bb	92	struct sr_channel *ch;
49224c28	93	struct sr_channel_group cg, acg;
c07f60e7	94	struct sr_config *src;
8b2d41ed	95	struct analog_gen *ag;
43376f33	96	GSList *l;
ba7dd8bb UH	97	int num_logic_channels, num_analog_channels, pattern, i;
ba7dd8bb UH	98	char channel_name[16];
067d0716	99
3f239f08 UH	100	num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS;
3f239f08 UH	101	num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS;
c07f60e7 BV	102	for (l = options; l; l = l->next) {
	103	src = l->data;
	104	switch (src->key) {
3f239f08	105	case SR_CONF_NUM_LOGIC_CHANNELS:
ba7dd8bb	106	num_logic_channels = g_variant_get_int32(src->data);
c07f60e7	107	break;
3f239f08	108	case SR_CONF_NUM_ANALOG_CHANNELS:
ba7dd8bb	109	num_analog_channels = g_variant_get_int32(src->data);
c07f60e7 BV	110	break;
	111	}
	112	}
85b5af06	113
aac29cc1	114	sdi = g_malloc0(sizeof(struct sr_dev_inst));
45884333	115	sdi->status = SR_ST_INACTIVE;
4b664cd6	116	sdi->model = g_strdup("Demo device");
e15f48c2	117
a49a320d	118	devc = g_malloc0(sizeof(struct dev_context));
8b2d41ed	119	devc->cur_samplerate = SR_KHZ(200);
ba7dd8bb UH	120	devc->num_logic_channels = num_logic_channels;
ba7dd8bb UH	121	devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
b1e6eec6	122	devc->logic_pattern = DEFAULT_LOGIC_PATTERN;
ba7dd8bb	123	devc->num_analog_channels = num_analog_channels;
8b2d41ed	124
f18e0db3 LPC	125	if (num_logic_channels > 0) {
	126	/* Logic channels, all in one channel group. */
	127	cg = g_malloc0(sizeof(struct sr_channel_group));
	128	cg->name = g_strdup("Logic");
	129	for (i = 0; i < num_logic_channels; i++) {
	130	sprintf(channel_name, "D%d", i);
f1c79a6a	131	ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
f18e0db3 LPC	132	cg->channels = g_slist_append(cg->channels, ch);
	133	}
	134	sdi->channel_groups = g_slist_append(NULL, cg);
87ca93c5 BV	135	}
87ca93c5 BV	136
ba7dd8bb	137	/* Analog channels, channel groups and pattern generators. */
d91d0b12	138	devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
f18e0db3 LPC	139	if (num_analog_channels > 0) {
	140	pattern = 0;
	141	/* An "Analog" channel group with all analog channels in it. */
	142	acg = g_malloc0(sizeof(struct sr_channel_group));
	143	acg->name = g_strdup("Analog");
	144	sdi->channel_groups = g_slist_append(sdi->channel_groups, acg);
	145
f18e0db3 LPC	146	for (i = 0; i < num_analog_channels; i++) {
	147	snprintf(channel_name, 16, "A%d", i);
	148	ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG,
f1c79a6a	149	TRUE, channel_name);
f18e0db3 LPC	150	acg->channels = g_slist_append(acg->channels, ch);
	151
	152	/* Every analog channel gets its own channel group as well. */
	153	cg = g_malloc0(sizeof(struct sr_channel_group));
	154	cg->name = g_strdup(channel_name);
	155	cg->channels = g_slist_append(NULL, ch);
	156	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	157
	158	/* Every channel gets a generator struct. */
	159	ag = g_malloc(sizeof(struct analog_gen));
	160	ag->amplitude = DEFAULT_ANALOG_AMPLITUDE;
3be044aa	161	sr_analog_init(&ag->packet, &ag->encoding, &ag->meaning, &ag->spec, 2);
4b770103 UH	162	ag->packet.meaning->channels = cg->channels;
	163	ag->packet.meaning->mq = 0;
	164	ag->packet.meaning->mqflags = 0;
	165	ag->packet.meaning->unit = SR_UNIT_VOLT;
f18e0db3 LPC	166	ag->packet.data = ag->pattern_data;
	167	ag->pattern = pattern;
	168	ag->avg_val = 0.0f;
	169	ag->num_avgs = 0;
	170	g_hash_table_insert(devc->ch_ag, ch, ag);
	171
	172	if (++pattern == ARRAY_SIZE(analog_pattern_str))
	173	pattern = 0;
	174	}
33ef7573	175	}
33ef7573 JH	176
	177	sdi->priv = devc;
	178
43376f33	179	return std_scan_complete(di, g_slist_append(NULL, sdi));
6239c175 UH	180	}
6239c175 UH	181
6078d2c9	182	static int dev_open(struct sr_dev_inst *sdi)
6239c175	183	{
e73ffd42	184	sdi->status = SR_ST_ACTIVE;
697785d1	185
e46b8fb1	186	return SR_OK;
6239c175 UH	187	}
6239c175 UH	188
6078d2c9	189	static int dev_close(struct sr_dev_inst *sdi)
6239c175	190	{
decfe89d	191	sdi->status = SR_ST_INACTIVE;
697785d1 UH	192
697785d1 UH	193	return SR_OK;
6239c175 UH	194	}
6239c175 UH	195
ed0b7fed BV	196	static void clear_helper(void *priv)
	197	{
	198	struct dev_context *devc;
49224c28 BV	199	GHashTableIter iter;
49224c28 BV	200	void *value;
ed0b7fed BV	201
ed0b7fed BV	202	devc = priv;
49224c28 BV	203
	204	/* Analog generators. */
	205	g_hash_table_iter_init(&iter, devc->ch_ag);
	206	while (g_hash_table_iter_next(&iter, NULL, &value))
	207	g_free(value);
	208	g_hash_table_unref(devc->ch_ag);
ed0b7fed BV	209	g_free(devc);
	210	}
	211
6ab68731	212	static int dev_clear(const struct sr_dev_driver *di)
6239c175	213	{
ed0b7fed	214	return std_dev_clear(di, clear_helper);
6239c175 UH	215	}
6239c175 UH	216
584560f1	217	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	218	const struct sr_channel_group *cg)
6239c175	219	{
c07f60e7	220	struct dev_context *devc;
ba7dd8bb	221	struct sr_channel *ch;
2388ae86 BV	222	struct analog_gen *ag;
2388ae86 BV	223	int pattern;
6f57fd96	224
2388ae86 BV	225	if (!sdi)
2388ae86 BV	226	return SR_ERR_ARG;
8f996b89	227
c07f60e7	228	devc = sdi->priv;
584560f1	229	switch (key) {
123e1313	230	case SR_CONF_SAMPLERATE:
a7684294	231	*data = g_variant_new_uint64(devc->cur_samplerate);
6239c175	232	break;
2474d87e	233	case SR_CONF_LIMIT_SAMPLES:
a7684294	234	*data = g_variant_new_uint64(devc->limit_samples);
2474d87e BV	235	break;
2474d87e BV	236	case SR_CONF_LIMIT_MSEC:
a7684294	237	*data = g_variant_new_uint64(devc->limit_msec);
2474d87e	238	break;
7a8a1aba BG	239	case SR_CONF_AVERAGING:
	240	*data = g_variant_new_boolean(devc->avg);
	241	break;
	242	case SR_CONF_AVG_SAMPLES:
	243	*data = g_variant_new_uint64(devc->avg_samples);
	244	break;
2474d87e	245	case SR_CONF_PATTERN_MODE:
53b4680f	246	if (!cg)
660e398f	247	return SR_ERR_CHANNEL_GROUP;
49224c28	248	/* Any channel in the group will do. */
ba7dd8bb	249	ch = cg->channels->data;
3f239f08	250	if (ch->type == SR_CHANNEL_LOGIC) {
2388ae86 BV	251	pattern = devc->logic_pattern;
2388ae86 BV	252	*data = g_variant_new_string(logic_pattern_str[pattern]);
3f239f08	253	} else if (ch->type == SR_CHANNEL_ANALOG) {
49224c28	254	ag = g_hash_table_lookup(devc->ch_ag, ch);
2388ae86 BV	255	pattern = ag->pattern;
	256	*data = g_variant_new_string(analog_pattern_str[pattern]);
	257	} else
	258	return SR_ERR_BUG;
c07f60e7	259	break;
dddabe37 BV	260	case SR_CONF_AMPLITUDE:
	261	if (!cg)
	262	return SR_ERR_CHANNEL_GROUP;
49224c28	263	/* Any channel in the group will do. */
dddabe37 BV	264	ch = cg->channels->data;
	265	if (ch->type != SR_CHANNEL_ANALOG)
	266	return SR_ERR_ARG;
49224c28	267	ag = g_hash_table_lookup(devc->ch_ag, ch);
dddabe37 BV	268	*data = g_variant_new_double(ag->amplitude);
dddabe37 BV	269	break;
7dfcf010	270	default:
bd6fbf62	271	return SR_ERR_NA;
6239c175 UH	272	}
6239c175 UH	273
dfb0fa1a	274	return SR_OK;
6239c175 UH	275	}
6239c175 UH	276
584560f1	277	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	278	const struct sr_channel_group *cg)
6239c175	279	{
8b2d41ed	280	struct dev_context *devc;
4374219b	281	struct analog_gen *ag;
ba7dd8bb	282	struct sr_channel *ch;
49224c28 BV	283	GSList *l;
49224c28 BV	284	int logic_pattern, analog_pattern, ret;
61c39f54	285	unsigned int i;
1b79df2f	286	const char *stropt;
6239c175	287
8b2d41ed	288	devc = sdi->priv;
6239c175	289
e73ffd42 BV	290	if (sdi->status != SR_ST_ACTIVE)
	291	return SR_ERR_DEV_CLOSED;
	292
2388ae86	293	ret = SR_OK;
584560f1	294	switch (key) {
2388ae86	295	case SR_CONF_SAMPLERATE:
a7684294	296	devc->cur_samplerate = g_variant_get_uint64(data);
2388ae86 BV	297	break;
2388ae86 BV	298	case SR_CONF_LIMIT_SAMPLES:
a7684294 JH	299	devc->limit_msec = 0;
a7684294 JH	300	devc->limit_samples = g_variant_get_uint64(data);
2388ae86 BV	301	break;
2388ae86 BV	302	case SR_CONF_LIMIT_MSEC:
a7684294 JH	303	devc->limit_msec = g_variant_get_uint64(data);
a7684294 JH	304	devc->limit_samples = 0;
2388ae86	305	break;
7a8a1aba BG	306	case SR_CONF_AVERAGING:
	307	devc->avg = g_variant_get_boolean(data);
	308	sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling");
	309	break;
	310	case SR_CONF_AVG_SAMPLES:
	311	devc->avg_samples = g_variant_get_uint64(data);
	312	sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples);
	313	break;
2388ae86	314	case SR_CONF_PATTERN_MODE:
53b4680f	315	if (!cg)
660e398f	316	return SR_ERR_CHANNEL_GROUP;
d00088ca	317	stropt = g_variant_get_string(data, NULL);
49224c28 BV	318	logic_pattern = analog_pattern = -1;
	319	for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) {
	320	if (!strcmp(stropt, logic_pattern_str[i])) {
	321	logic_pattern = i;
	322	break;
8b2d41ed	323	}
49224c28 BV	324	}
	325	for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) {
	326	if (!strcmp(stropt, analog_pattern_str[i])) {
	327	analog_pattern = i;
	328	break;
8b2d41ed	329	}
49224c28 BV	330	}
	331	if (logic_pattern == -1 && analog_pattern == -1)
	332	return SR_ERR_ARG;
	333	for (l = cg->channels; l; l = l->next) {
	334	ch = l->data;
	335	if (ch->type == SR_CHANNEL_LOGIC) {
	336	if (logic_pattern == -1)
	337	return SR_ERR_ARG;
	338	sr_dbg("Setting logic pattern to %s",
	339	logic_pattern_str[logic_pattern]);
	340	devc->logic_pattern = logic_pattern;
	341	/* Might as well do this now, these are static. */
	342	if (logic_pattern == PATTERN_ALL_LOW)
	343	memset(devc->logic_data, 0x00, LOGIC_BUFSIZE);
	344	else if (logic_pattern == PATTERN_ALL_HIGH)
	345	memset(devc->logic_data, 0xff, LOGIC_BUFSIZE);
	346	} else if (ch->type == SR_CHANNEL_ANALOG) {
	347	if (analog_pattern == -1)
	348	return SR_ERR_ARG;
	349	sr_dbg("Setting analog pattern for channel %s to %s",
	350	ch->name, analog_pattern_str[analog_pattern]);
	351	ag = g_hash_table_lookup(devc->ch_ag, ch);
	352	ag->pattern = analog_pattern;
	353	} else
	354	return SR_ERR_BUG;
	355	}
2388ae86	356	break;
dddabe37 BV	357	case SR_CONF_AMPLITUDE:
	358	if (!cg)
	359	return SR_ERR_CHANNEL_GROUP;
49224c28 BV	360	for (l = cg->channels; l; l = l->next) {
	361	ch = l->data;
	362	if (ch->type != SR_CHANNEL_ANALOG)
	363	return SR_ERR_ARG;
	364	ag = g_hash_table_lookup(devc->ch_ag, ch);
	365	ag->amplitude = g_variant_get_double(data);
	366	}
dddabe37	367	break;
2388ae86	368	default:
bd6fbf62	369	ret = SR_ERR_NA;
6239c175 UH	370	}
	371
	372	return ret;
	373	}
	374
584560f1	375	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	376	const struct sr_channel_group *cg)
a1c743fc	377	{
ba7dd8bb	378	struct sr_channel *ch;
d00088ca BV	379	GVariant *gvar;
d00088ca BV	380	GVariantBuilder gvb;
a1c743fc	381
7a1da331	382	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	383	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	384	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
7a1da331 BV	385	return SR_OK;
	386	}
	387
390795c0 BV	388	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
390795c0 BV	389	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1e4a7cac	390	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
390795c0 BV	391	return SR_OK;
	392	}
	393
7a1da331 BV	394	if (!sdi)
	395	return SR_ERR_ARG;
	396
53b4680f	397	if (!cg) {
7a1da331 BV	398	switch (key) {
7a1da331 BV	399	case SR_CONF_DEVICE_OPTIONS:
584560f1	400	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1e4a7cac	401	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
7a1da331 BV	402	break;
	403	case SR_CONF_SAMPLERATE:
	404	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	405	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	406	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	407	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	408	*data = g_variant_builder_end(&gvb);
	409	break;
	410	default:
	411	return SR_ERR_NA;
	412	}
	413	} else {
ba7dd8bb	414	ch = cg->channels->data;
7a1da331 BV	415	switch (key) {
7a1da331 BV	416	case SR_CONF_DEVICE_OPTIONS:
49224c28	417	if (ch->type == SR_CHANNEL_LOGIC)
8249889d	418	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
49224c28	419	devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic),
584560f1	420	sizeof(uint32_t));
e2b99f04 SA	421	else if (ch->type == SR_CHANNEL_ANALOG) {
	422	if (strcmp(cg->name, "Analog") == 0)
	423	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	424	devopts_cg_analog_group, ARRAY_SIZE(devopts_cg_analog_group),
	425	sizeof(uint32_t));
	426	else
	427	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	428	devopts_cg_analog_channel, ARRAY_SIZE(devopts_cg_analog_channel),
	429	sizeof(uint32_t));
	430	}
49224c28 BV	431	else
49224c28 BV	432	return SR_ERR_BUG;
7a1da331 BV	433	break;
7a1da331 BV	434	case SR_CONF_PATTERN_MODE:
e2b99f04 SA	435	/* The analog group (with all 4 channels) shall not have a pattern property. */
	436	if (strcmp(cg->name, "Analog") == 0)
	437	return SR_ERR_NA;
	438
3f239f08	439	if (ch->type == SR_CHANNEL_LOGIC)
7a1da331 BV	440	*data = g_variant_new_strv(logic_pattern_str,
7a1da331 BV	441	ARRAY_SIZE(logic_pattern_str));
3f239f08	442	else if (ch->type == SR_CHANNEL_ANALOG)
7a1da331 BV	443	*data = g_variant_new_strv(analog_pattern_str,
7a1da331 BV	444	ARRAY_SIZE(analog_pattern_str));
2388ae86 BV	445	else
2388ae86 BV	446	return SR_ERR_BUG;
7a1da331 BV	447	break;
	448	default:
	449	return SR_ERR_NA;
	450	}
a1c743fc BV	451	}
	452
	453	return SR_OK;
	454	}
	455
695dc859	456	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
6239c175	457	{
61c39f54	458	struct dev_context *devc;
49224c28 BV	459	GHashTableIter iter;
49224c28 BV	460	void *value;
85b5af06	461
e73ffd42 BV	462	if (sdi->status != SR_ST_ACTIVE)
	463	return SR_ERR_DEV_CLOSED;
	464
61c39f54	465	devc = sdi->priv;
a49a320d	466	devc->sent_samples = 0;
85b5af06	467
49224c28 BV	468	g_hash_table_iter_init(&iter, devc->ch_ag);
49224c28 BV	469	while (g_hash_table_iter_next(&iter, NULL, &value))
ba508e22	470	demo_generate_analog_pattern(value, devc->cur_samplerate);
4374219b	471
98c01fe1	472	sr_session_source_add(sdi->session, -1, 0, 100,
ba508e22	473	demo_prepare_data, (struct sr_dev_inst *)sdi);
85b5af06	474
bee2b016	475	std_session_send_df_header(sdi);
f366e86c	476
3b203673	477	/* We use this timestamp to decide how many more samples to send. */
a49a320d DE	478	devc->start_us = g_get_monotonic_time();
a49a320d DE	479	devc->spent_us = 0;
471ac344	480	devc->step = 0;
3b203673	481
e46b8fb1	482	return SR_OK;
6239c175 UH	483	}
6239c175 UH	484
695dc859	485	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
6239c175	486	{
a84f6ad3	487	sr_dbg("Stopping acquisition.");
027bf077	488	sr_session_source_remove(sdi->session, -1);
bee2b016	489	std_session_send_df_end(sdi);
7fd3e859	490
3010f21c	491	return SR_OK;
6239c175 UH	492	}
6239c175 UH	493
dd5c48a6	494	static struct sr_dev_driver demo_driver_info = {
e519ba86 UH	495	.name = "demo",
	496	.longname = "Demo driver and pattern generator",
	497	.api_version = 1,
c2fdcc25	498	.init = std_init,
700d6b64	499	.cleanup = std_cleanup,
6078d2c9	500	.scan = scan,
c01bf34c	501	.dev_list = std_dev_list,
6ab68731	502	.dev_clear = dev_clear,
035a1078 BV	503	.config_get = config_get,
035a1078 BV	504	.config_set = config_set,
a1c743fc	505	.config_list = config_list,
6078d2c9 UH	506	.dev_open = dev_open,
	507	.dev_close = dev_close,
	508	.dev_acquisition_start = dev_acquisition_start,
	509	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	510	.context = NULL,
6239c175	511	};
dd5c48a6	512	SR_REGISTER_DEV_DRIVER(demo_driver_info);