[libsigrok.git] / src / hardware / gwinstek-gpd / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2018 Bastian Schmitz <bastian.schmitz@udo.edu>
 *
 * 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 <config.h>
#include <string.h>
#include "protocol.h"

static const uint32_t scanopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

static const uint32_t drvopts[] = {
	SR_CONF_POWER_SUPPLY,
};

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_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
};

static const uint32_t devopts_cg[] = {
	SR_CONF_VOLTAGE | SR_CONF_GET,
	SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_CURRENT | SR_CONF_GET,
	SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

static const char *channel_modes[] = {
	"Independent",
};

static const struct gpd_model models[] = {
	{ GPD_2303S, "GPD-2303S",
		CHANMODE_INDEPENDENT,
		2,
		{
			/* Channel 1 */
			{ { 0, 30, 0.001 }, { 0, 3, 0.001 } },
			/* Channel 2 */
			{ { 0, 30, 0.001 }, { 0, 3, 0.001 } },
		},
	},
	{ GPD_3303S, "GPD-3303S",
		CHANMODE_INDEPENDENT,
		2,
		{
			/* Channel 1 */
			{ { 0, 32, 0.001 }, { 0, 3.2, 0.001 } },
			/* Channel 2 */
			{ { 0, 32, 0.001 }, { 0, 3.2, 0.001 } },
		},
	},
};

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	const char *conn, *serialcomm;
	const struct gpd_model *model;
	const struct sr_config *src;
	struct sr_channel *ch;
	struct sr_channel_group *cg;
	GSList *l;
	struct sr_serial_dev_inst *serial;
	struct sr_dev_inst *sdi;
	char reply[100];
	unsigned int i;
	struct dev_context *devc;
	char channel[10];
	GRegex *regex;
	GMatchInfo *match_info;
	unsigned int cc_cv_ch1, cc_cv_ch2, track1, track2, beep, baud1, baud2;

	serial = NULL;
	match_info = NULL;
	regex = NULL;
	conn = NULL;
	serialcomm = NULL;

	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = g_variant_get_string(src->data, NULL);
			break;
		}
	}

	if (!conn)
		return NULL;
	if (!serialcomm)
		serialcomm = "115200/8n1";
	sr_info("Probing serial port %s.", conn);
	serial = sr_serial_dev_inst_new(conn, serialcomm);
	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
		return NULL;

	gpd_send_cmd(serial, "*IDN?\n");
	if (gpd_receive_reply(serial, reply, sizeof(reply)) != SR_OK) {
		sr_err("Device did not reply.");
		goto error;
	}
	serial_flush(serial);

	/*
	 * Returned identification string is for example:
	 * "GW INSTEK,GPD-2303S,SN:ER915277,V2.10"
	 */
	regex = g_regex_new("GW INSTEK,(.+),SN:(.+),(V.+)", 0, 0, NULL);
	if (!g_regex_match(regex, reply, 0, &match_info)) {
		sr_err("Unsupported model '%s'.", reply);
		goto error;
	}

	model = NULL;
	for (i = 0; i < ARRAY_SIZE(models); i++) {
		if (!strcmp(g_match_info_fetch(match_info, 1), models[i].name)) {
			model = &models[i];
			break;
		}
	}
	if (!model) {
		sr_err("Unsupported model '%s'.", reply);
		goto error;
	}

	sr_info("Detected model '%s'.", model->name);

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("GW Instek");
	sdi->model = g_strdup(model->name);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;

	for (i = 0; i < model->num_channels; i++) {
		snprintf(channel, sizeof(channel), "CH%d", i + 1);
		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
		cg = g_malloc(sizeof(struct sr_channel_group));
		cg->name = g_strdup(channel);
		cg->channels = g_slist_append(NULL, ch);
		cg->priv = NULL;
		sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	}

	devc = g_malloc0(sizeof(struct dev_context));
	sr_sw_limits_init(&devc->limits);
	devc->model = model;
	devc->config = g_malloc0(sizeof(struct per_channel_config)
				 * model->num_channels);
	sdi->priv = devc;

	serial_flush(serial);
	gpd_send_cmd(serial, "STATUS?\n");
	gpd_receive_reply(serial, reply, sizeof(reply));

	if (sscanf(reply, "%1u%1u%1u%1u%1u%1u%1u%1u", &cc_cv_ch1,
			&cc_cv_ch2, &track1, &track2, &beep,
			&devc->output_enabled, &baud1, &baud2) != 8) {
		/* old firmware (< 2.00?) responds with different format */
		if (sscanf(reply, "%1u %1u %1u %1u %1u X %1u X", &cc_cv_ch1,
			   &cc_cv_ch2, &track1, &track2, &beep,
			   &devc->output_enabled) != 6) {
			sr_err("Invalid reply to STATUS: '%s'.", reply);
			goto error;
		}
		/* ignore remaining two lines of status message */
		gpd_receive_reply(serial, reply, sizeof(reply));
		gpd_receive_reply(serial, reply, sizeof(reply));
	}

	for (i = 0; i < model->num_channels; ++i) {
		gpd_send_cmd(serial, "ISET%d?\n", i + 1);
		gpd_receive_reply(serial, reply, sizeof(reply));
		if (sscanf(reply, "%f", &devc->config[i].output_current_max) != 1) {
			sr_err("Invalid reply to ISETn?: '%s'.", reply);
			goto error;
		}

		gpd_send_cmd(serial, "VSET%d?\n", i + 1);
		gpd_receive_reply(serial, reply, sizeof(reply));
		if (sscanf(reply, "%f", &devc->config[i].output_voltage_max) != 1) {
			sr_err("Invalid reply to VSETn?: '%s'.", reply);
			goto error;
		}
		gpd_send_cmd(serial, "IOUT%d?\n", i + 1);
		gpd_receive_reply(serial, reply, sizeof(reply));
		if (sscanf(reply, "%f", &devc->config[i].output_current_last) != 1) {
			sr_err("Invalid reply to IOUTn?: '%s'.", reply);
			goto error;
		}
		gpd_send_cmd(serial, "VOUT%d?\n", i + 1);
		gpd_receive_reply(serial, reply, sizeof(reply));
		if (sscanf(reply, "%f", &devc->config[i].output_voltage_last) != 1) {
			sr_err("Invalid reply to VOUTn?: '%s'.", reply);
			goto error;
		}
	}

	serial_close(serial);

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

error:
	if (match_info)
		g_match_info_free(match_info);
	if (regex)
		g_regex_unref(regex);
	if (serial)
		serial_close(serial);

	return NULL;
}

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

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	if (!cg) {
		switch (key) {
		case SR_CONF_CHANNEL_CONFIG:
			*data = g_variant_new_string(
				channel_modes[devc->channel_mode]);
			break;
		case SR_CONF_ENABLED:
			*data = g_variant_new_boolean(devc->output_enabled);
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		ch = cg->channels->data;
		channel = ch->index;
		switch (key) {
		case SR_CONF_VOLTAGE:
			*data = g_variant_new_double(
				devc->config[channel].output_voltage_last);
			break;
		case SR_CONF_VOLTAGE_TARGET:
			*data = g_variant_new_double(
				devc->config[channel].output_voltage_max);
			break;
		case SR_CONF_CURRENT:
			*data = g_variant_new_double(
				devc->config[channel].output_current_last);
			break;
		case SR_CONF_CURRENT_LIMIT:
			*data = g_variant_new_double(
				devc->config[channel].output_current_max);
			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)
{
	int ret, channel;
	const struct sr_channel *ch;
	double dval;
	gboolean bval;
	struct dev_context *devc;

	devc = sdi->priv;

	ret = SR_OK;

	switch (key) {
	case SR_CONF_LIMIT_MSEC:
	case SR_CONF_LIMIT_SAMPLES:
		return sr_sw_limits_config_set(&devc->limits, key, data);
	case SR_CONF_ENABLED:
		bval = g_variant_get_boolean(data);
		gpd_send_cmd(sdi->conn, "OUT%c\n", bval ? '1' : '0');
		devc->output_enabled = bval;
		break;
	case SR_CONF_VOLTAGE_TARGET:
		ch = cg->channels->data;
		channel = ch->index;
		dval = g_variant_get_double(data);
		if (dval < devc->model->channels[channel].voltage[0]
		    || dval > devc->model->channels[channel].voltage[1])
			return SR_ERR_ARG;
		gpd_send_cmd(sdi->conn, "VSET%d:%05.3lf\n", channel + 1, dval);
		devc->config[channel].output_voltage_max = dval;
		break;
	case SR_CONF_CURRENT_LIMIT:
		ch = cg->channels->data;
		channel = ch->index;
		dval = g_variant_get_double(data);
		if (dval < devc->model->channels[channel].current[0]
		    || dval > devc->model->channels[channel].current[1])
			return SR_ERR_ARG;
		gpd_send_cmd(sdi->conn, "ISET%d:%05.3lf\n", channel + 1, dval);
		devc->config[channel].output_current_max = dval;
		break;
	default:
		ret = SR_ERR_NA;
		break;
	}

	return ret;
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	const struct dev_context *devc;
	const struct sr_channel *ch;
	int channel;

	devc = (sdi) ? sdi->priv : NULL;

	if (!cg) {
		switch (key) {
		case SR_CONF_SCAN_OPTIONS:
		case SR_CONF_DEVICE_OPTIONS:
			return STD_CONFIG_LIST(key, data, sdi, cg, scanopts,
					       drvopts, devopts);
		case SR_CONF_CHANNEL_CONFIG:
			*data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes));
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		ch = cg->channels->data;
		channel = ch->index;

		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
			break;
		case SR_CONF_VOLTAGE_TARGET:
			*data = std_gvar_min_max_step_array(
				devc->model->channels[channel].voltage);
			break;
		case SR_CONF_CURRENT_LIMIT:
			*data = std_gvar_min_max_step_array(
				devc->model->channels[channel].current);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;

	devc = sdi->priv;

	sr_sw_limits_acquisition_start(&devc->limits);
	std_session_send_df_header(sdi);

	devc->reply_pending = FALSE;
	devc->req_sent_at = 0;
	serial = sdi->conn;
	serial_source_add(sdi->session, serial, G_IO_IN, 100,
			  gpd_receive_data, (void *)sdi);

	return SR_OK;
}

static struct sr_dev_driver gwinstek_gpd_driver_info = {
	.name = "gwinstek-gpd",
	.longname = "GW Instek GPD",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = std_dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = std_serial_dev_open,
	.dev_close = std_serial_dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(gwinstek_gpd_driver_info);
Commit	Line	Data
b872ab7d BS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2018 Bastian Schmitz <bastian.schmitz@udo.edu>
	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 <config.h>
	21	#include <string.h>
	22	#include "protocol.h"
	23
	24	static const uint32_t scanopts[] = {
	25	SR_CONF_CONN,
	26	SR_CONF_SERIALCOMM,
	27	};
	28
	29	static const uint32_t drvopts[] = {
	30	SR_CONF_POWER_SUPPLY,
	31	};
	32
	33	static const uint32_t devopts[] = {
	34	SR_CONF_CONTINUOUS,
	35	SR_CONF_LIMIT_SAMPLES \| SR_CONF_GET \| SR_CONF_SET,
	36	SR_CONF_LIMIT_MSEC \| SR_CONF_GET \| SR_CONF_SET,
	37	SR_CONF_CHANNEL_CONFIG \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	38	SR_CONF_ENABLED \| SR_CONF_GET \| SR_CONF_SET,
	39	};
	40
	41	static const uint32_t devopts_cg[] = {
	42	SR_CONF_VOLTAGE \| SR_CONF_GET,
	43	SR_CONF_VOLTAGE_TARGET \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	44	SR_CONF_CURRENT \| SR_CONF_GET,
	45	SR_CONF_CURRENT_LIMIT \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	46	};
	47
	48	static const char *channel_modes[] = {
	49	"Independent",
	50	};
	51
	52	static const struct gpd_model models[] = {
	53	{ GPD_2303S, "GPD-2303S",
	54	CHANMODE_INDEPENDENT,
	55	2,
	56	{
	57	/* Channel 1 */
	58	{ { 0, 30, 0.001 }, { 0, 3, 0.001 } },
	59	/* Channel 2 */
	60	{ { 0, 30, 0.001 }, { 0, 3, 0.001 } },
	61	},
	62	},
3b316fdc TK	63	{ GPD_3303S, "GPD-3303S",
	64	CHANMODE_INDEPENDENT,
	65	2,
	66	{
	67	/* Channel 1 */
	68	{ { 0, 32, 0.001 }, { 0, 3.2, 0.001 } },
	69	/* Channel 2 */
	70	{ { 0, 32, 0.001 }, { 0, 3.2, 0.001 } },
	71	},
	72	},
b872ab7d BS	73	};
	74
	75	static GSList scan(struct sr_dev_driver di, GSList *options)
	76	{
	77	const char conn, serialcomm;
	78	const struct gpd_model *model;
	79	const struct sr_config *src;
	80	struct sr_channel *ch;
	81	struct sr_channel_group *cg;
	82	GSList *l;
	83	struct sr_serial_dev_inst *serial;
	84	struct sr_dev_inst *sdi;
13726d30	85	char reply[100];
b872ab7d BS	86	unsigned int i;
	87	struct dev_context *devc;
	88	char channel[10];
	89	GRegex *regex;
	90	GMatchInfo *match_info;
	91	unsigned int cc_cv_ch1, cc_cv_ch2, track1, track2, beep, baud1, baud2;
	92
	93	serial = NULL;
	94	match_info = NULL;
	95	regex = NULL;
	96	conn = NULL;
	97	serialcomm = NULL;
	98
	99	for (l = options; l; l = l->next) {
	100	src = l->data;
	101	switch (src->key) {
	102	case SR_CONF_CONN:
	103	conn = g_variant_get_string(src->data, NULL);
	104	break;
	105	case SR_CONF_SERIALCOMM:
	106	serialcomm = g_variant_get_string(src->data, NULL);
	107	break;
	108	}
	109	}
	110
	111	if (!conn)
	112	return NULL;
	113	if (!serialcomm)
	114	serialcomm = "115200/8n1";
	115	sr_info("Probing serial port %s.", conn);
	116	serial = sr_serial_dev_inst_new(conn, serialcomm);
	117	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
	118	return NULL;
	119
b872ab7d BS	120	gpd_send_cmd(serial, "*IDN?\n");
	121	if (gpd_receive_reply(serial, reply, sizeof(reply)) != SR_OK) {
	122	sr_err("Device did not reply.");
	123	goto error;
	124	}
	125	serial_flush(serial);
	126
	127	/*
	128	* Returned identification string is for example:
	129	* "GW INSTEK,GPD-2303S,SN:ER915277,V2.10"
	130	*/
	131	regex = g_regex_new("GW INSTEK,(.+),SN:(.+),(V.+)", 0, 0, NULL);
	132	if (!g_regex_match(regex, reply, 0, &match_info)) {
	133	sr_err("Unsupported model '%s'.", reply);
	134	goto error;
	135	}
	136
	137	model = NULL;
	138	for (i = 0; i < ARRAY_SIZE(models); i++) {
	139	if (!strcmp(g_match_info_fetch(match_info, 1), models[i].name)) {
	140	model = &models[i];
	141	break;
	142	}
	143	}
	144	if (!model) {
	145	sr_err("Unsupported model '%s'.", reply);
	146	goto error;
	147	}
	148
	149	sr_info("Detected model '%s'.", model->name);
	150
	151	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	152	sdi->status = SR_ST_INACTIVE;
	153	sdi->vendor = g_strdup("GW Instek");
	154	sdi->model = g_strdup(model->name);
	155	sdi->inst_type = SR_INST_SERIAL;
	156	sdi->conn = serial;
	157
	158	for (i = 0; i < model->num_channels; i++) {
	159	snprintf(channel, sizeof(channel), "CH%d", i + 1);
	160	ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
	161	cg = g_malloc(sizeof(struct sr_channel_group));
	162	cg->name = g_strdup(channel);
	163	cg->channels = g_slist_append(NULL, ch);
	164	cg->priv = NULL;
	165	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
	166	}
	167
	168	devc = g_malloc0(sizeof(struct dev_context));
	169	sr_sw_limits_init(&devc->limits);
	170	devc->model = model;
	171	devc->config = g_malloc0(sizeof(struct per_channel_config)
	172	* model->num_channels);
	173	sdi->priv = devc;
	174
	175	serial_flush(serial);
	176	gpd_send_cmd(serial, "STATUS?\n");
	177	gpd_receive_reply(serial, reply, sizeof(reply));
	178
	179	if (sscanf(reply, "%1u%1u%1u%1u%1u%1u%1u%1u", &cc_cv_ch1,
	180	&cc_cv_ch2, &track1, &track2, &beep,
	181	&devc->output_enabled, &baud1, &baud2) != 8) {
13726d30 TK	182	/* old firmware (< 2.00?) responds with different format */
	183	if (sscanf(reply, "%1u %1u %1u %1u %1u X %1u X", &cc_cv_ch1,
	184	&cc_cv_ch2, &track1, &track2, &beep,
	185	&devc->output_enabled) != 6) {
	186	sr_err("Invalid reply to STATUS: '%s'.", reply);
	187	goto error;
	188	}
	189	/* ignore remaining two lines of status message */
	190	gpd_receive_reply(serial, reply, sizeof(reply));
	191	gpd_receive_reply(serial, reply, sizeof(reply));
b872ab7d BS	192	}
	193
	194	for (i = 0; i < model->num_channels; ++i) {
	195	gpd_send_cmd(serial, "ISET%d?\n", i + 1);
	196	gpd_receive_reply(serial, reply, sizeof(reply));
	197	if (sscanf(reply, "%f", &devc->config[i].output_current_max) != 1) {
	198	sr_err("Invalid reply to ISETn?: '%s'.", reply);
	199	goto error;
	200	}
	201
	202	gpd_send_cmd(serial, "VSET%d?\n", i + 1);
	203	gpd_receive_reply(serial, reply, sizeof(reply));
	204	if (sscanf(reply, "%f", &devc->config[i].output_voltage_max) != 1) {
	205	sr_err("Invalid reply to VSETn?: '%s'.", reply);
	206	goto error;
	207	}
	208	gpd_send_cmd(serial, "IOUT%d?\n", i + 1);
	209	gpd_receive_reply(serial, reply, sizeof(reply));
	210	if (sscanf(reply, "%f", &devc->config[i].output_current_last) != 1) {
	211	sr_err("Invalid reply to IOUTn?: '%s'.", reply);
	212	goto error;
	213	}
	214	gpd_send_cmd(serial, "VOUT%d?\n", i + 1);
	215	gpd_receive_reply(serial, reply, sizeof(reply));
	216	if (sscanf(reply, "%f", &devc->config[i].output_voltage_last) != 1) {
	217	sr_err("Invalid reply to VOUTn?: '%s'.", reply);
	218	goto error;
	219	}
	220	}
	221
	222	serial_close(serial);
	223
	224	return std_scan_complete(di, g_slist_append(NULL, sdi));
	225
	226	error:
	227	if (match_info)
	228	g_match_info_free(match_info);
	229	if (regex)
	230	g_regex_unref(regex);
	231	if (serial)
	232	serial_close(serial);
	233
	234	return NULL;
	235	}
	236
	237	static int config_get(uint32_t key, GVariant **data,
	238	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	239	{
5ff77241	240	int channel;
b872ab7d BS	241	const struct dev_context *devc;
b872ab7d BS	242	const struct sr_channel *ch;
b872ab7d BS	243
	244	if (!sdi)
	245	return SR_ERR_ARG;
	246
	247	devc = sdi->priv;
	248
	249	if (!cg) {
	250	switch (key) {
	251	case SR_CONF_CHANNEL_CONFIG:
	252	*data = g_variant_new_string(
	253	channel_modes[devc->channel_mode]);
	254	break;
	255	case SR_CONF_ENABLED:
	256	*data = g_variant_new_boolean(devc->output_enabled);
	257	break;
	258	default:
	259	return SR_ERR_NA;
	260	}
	261	} else {
	262	ch = cg->channels->data;
	263	channel = ch->index;
b872ab7d BS	264	switch (key) {
	265	case SR_CONF_VOLTAGE:
	266	*data = g_variant_new_double(
	267	devc->config[channel].output_voltage_last);
	268	break;
	269	case SR_CONF_VOLTAGE_TARGET:
	270	*data = g_variant_new_double(
	271	devc->config[channel].output_voltage_max);
	272	break;
	273	case SR_CONF_CURRENT:
	274	*data = g_variant_new_double(
	275	devc->config[channel].output_current_last);
	276	break;
	277	case SR_CONF_CURRENT_LIMIT:
	278	*data = g_variant_new_double(
	279	devc->config[channel].output_current_max);
	280	break;
	281	default:
	282	return SR_ERR_NA;
	283	}
	284	}
	285
5ff77241	286	return SR_OK;
b872ab7d BS	287	}
	288
	289	static int config_set(uint32_t key, GVariant *data,
	290	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	291	{
	292	int ret, channel;
	293	const struct sr_channel *ch;
	294	double dval;
	295	gboolean bval;
	296	struct dev_context *devc;
	297
	298	devc = sdi->priv;
b872ab7d BS	299
	300	ret = SR_OK;
	301
	302	switch (key) {
	303	case SR_CONF_LIMIT_MSEC:
	304	case SR_CONF_LIMIT_SAMPLES:
	305	return sr_sw_limits_config_set(&devc->limits, key, data);
	306	case SR_CONF_ENABLED:
	307	bval = g_variant_get_boolean(data);
	308	gpd_send_cmd(sdi->conn, "OUT%c\n", bval ? '1' : '0');
	309	devc->output_enabled = bval;
	310	break;
	311	case SR_CONF_VOLTAGE_TARGET:
	312	ch = cg->channels->data;
	313	channel = ch->index;
	314	dval = g_variant_get_double(data);
	315	if (dval < devc->model->channels[channel].voltage[0]
	316	\|\| dval > devc->model->channels[channel].voltage[1])
	317	return SR_ERR_ARG;
	318	gpd_send_cmd(sdi->conn, "VSET%d:%05.3lf\n", channel + 1, dval);
	319	devc->config[channel].output_voltage_max = dval;
	320	break;
	321	case SR_CONF_CURRENT_LIMIT:
	322	ch = cg->channels->data;
	323	channel = ch->index;
	324	dval = g_variant_get_double(data);
	325	if (dval < devc->model->channels[channel].current[0]
	326	\|\| dval > devc->model->channels[channel].current[1])
	327	return SR_ERR_ARG;
	328	gpd_send_cmd(sdi->conn, "ISET%d:%05.3lf\n", channel + 1, dval);
	329	devc->config[channel].output_current_max = dval;
	330	break;
	331	default:
	332	ret = SR_ERR_NA;
	333	break;
	334	}
	335
	336	return ret;
	337	}
	338
	339	static int config_list(uint32_t key, GVariant **data,
	340	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	341	{
	342	const struct dev_context *devc;
	343	const struct sr_channel *ch;
	344	int channel;
	345
	346	devc = (sdi) ? sdi->priv : NULL;
	347
	348	if (!cg) {
	349	switch (key) {
	350	case SR_CONF_SCAN_OPTIONS:
	351	case SR_CONF_DEVICE_OPTIONS:
	352	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts,
	353	drvopts, devopts);
	354	case SR_CONF_CHANNEL_CONFIG:
	355	*data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes));
	356	break;
	357	default:
	358	return SR_ERR_NA;
	359	}
	360	} else {
	361	ch = cg->channels->data;
	362	channel = ch->index;
363
364	switch (key) {
365	case SR_CONF_DEVICE_OPTIONS:
366	*data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
367	break;
368	case SR_CONF_VOLTAGE_TARGET:
369	*data = std_gvar_min_max_step_array(
370	devc->model->channels[channel].voltage);
371	break;
372	case SR_CONF_CURRENT_LIMIT:
373	*data = std_gvar_min_max_step_array(
374	devc->model->channels[channel].current);
375	break;
376	default:
377	return SR_ERR_NA;
378	}
379	}
380
381	return SR_OK;
382	}
383
384	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
385	{
386	struct dev_context *devc;
387	struct sr_serial_dev_inst *serial;
388
b872ab7d BS	389	devc = sdi->priv;
	390
	391	sr_sw_limits_acquisition_start(&devc->limits);
	392	std_session_send_df_header(sdi);
	393
	394	devc->reply_pending = FALSE;
	395	devc->req_sent_at = 0;
	396	serial = sdi->conn;
	397	serial_source_add(sdi->session, serial, G_IO_IN, 100,
	398	gpd_receive_data, (void *)sdi);
	399
	400	return SR_OK;
	401	}
	402
f1e82915	403	static struct sr_dev_driver gwinstek_gpd_driver_info = {
b872ab7d BS	404	.name = "gwinstek-gpd",
	405	.longname = "GW Instek GPD",
	406	.api_version = 1,
	407	.init = std_init,
	408	.cleanup = std_cleanup,
	409	.scan = scan,
	410	.dev_list = std_dev_list,
	411	.dev_clear = std_dev_clear,
	412	.config_get = config_get,
	413	.config_set = config_set,
	414	.config_list = config_list,
	415	.dev_open = std_serial_dev_open,
	416	.dev_close = std_serial_dev_close,
	417	.dev_acquisition_start = dev_acquisition_start,
	418	.dev_acquisition_stop = std_serial_dev_acquisition_stop,
	419	.context = NULL,
	420	};
	421	SR_REGISTER_DEV_DRIVER(gwinstek_gpd_driver_info);