[libsigrok.git] / hardware / atten-pps3xxx / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 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 <string.h>
#include <errno.h>
#include "protocol.h"

/*
 * The default serial communication settings on the device are 9600
 * baud, 9 data bits. The 9th bit isn't actually used, and the vendor
 * software uses Mark parity to absorb the extra bit.
 *
 * Since 9 data bits is not a standard available in POSIX, we use two
 * stop bits to skip over the extra bit instead.
 */
#define SERIALCOMM "9600/8n2"

static const int32_t scanopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

static const int32_t devopts[] = {
	SR_CONF_POWER_SUPPLY,
	SR_CONF_CONTINUOUS,
	SR_CONF_OUTPUT_CHANNEL,
	SR_CONF_OVER_CURRENT_PROTECTION,
};

static const int32_t devopts_pg[] = {
	SR_CONF_OUTPUT_VOLTAGE,
	SR_CONF_OUTPUT_VOLTAGE_MAX,
	SR_CONF_OUTPUT_CURRENT,
	SR_CONF_OUTPUT_CURRENT_MAX,
	SR_CONF_OUTPUT_ENABLED,
};

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

static struct pps_model models[] = {
	{ PPS_3203T_3S, "PPS3203T-3S",
		CHANMODE_INDEPENDENT | CHANMODE_SERIES | CHANMODE_PARALLEL,
		3,
		{
			/* Channel 1 */
			{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
			/* Channel 2 */
			{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
			/* Channel 3 */
			{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
		},
	},
};


SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
static struct sr_dev_driver *di = &atten_pps3203_driver_info;

static int init(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static GSList *scan(GSList *options, int modelid)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_probe *probe;
	struct sr_probe_group *pg;
	struct sr_serial_dev_inst *serial;
	GSList *l, *devices;
	struct pps_model *model;
	uint8_t packet[PACKET_SIZE];
	unsigned int i;
	int ret;
	const char *conn, *serialcomm;
	char channel[10];

	devices = NULL;
	drvc = di->priv;
	drvc->instances = NULL;

	conn = 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 = SERIALCOMM;

	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
		return NULL;

	if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
		return NULL;
	serial_flush(serial);

	/* This is how the vendor software probes for hardware. */
	memset(packet, 0, PACKET_SIZE);
	packet[0] = 0xaa;
	packet[1] = 0xaa;
	if (serial_write(serial, packet, PACKET_SIZE) == -1) {
		sr_err("Unable to write while probing for hardware: %s",
				strerror(errno));
		return NULL;
	}
	/* The device responds with a 24-byte packet when it receives a packet.
	 * At 9600 baud, 300ms is long enough for it to have arrived. */
	g_usleep(300 * 1000);
	memset(packet, 0, PACKET_SIZE);
	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
		sr_err("Unable to read while probing for hardware: %s",
				strerror(errno));
		return NULL;
	}
	if (ret != PACKET_SIZE || packet[0] != 0xaa || packet[1] != 0xaa) {
		/* Doesn't look like an Atten PPS. */
		return NULL;
	}

	model = NULL;
	for (i = 0; i < ARRAY_SIZE(models); i++) {
		if (models[i].modelid == modelid) {
			model = &models[i];
			break;
		}
	}
	if (!model) {
		sr_err("Unknown modelid %d", modelid);
		return NULL;
	}

	sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
	sdi->driver = di;
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	for (i = 0; i < MAX_CHANNELS; i++) {
		snprintf(channel, 10, "CH%d", i + 1);
		probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel);
		sdi->probes = g_slist_append(sdi->probes, probe);
		pg = g_malloc(sizeof(struct sr_probe_group));
		pg->name = g_strdup(channel);
		pg->probes = g_slist_append(NULL, probe);
		pg->priv = NULL;
		sdi->probe_groups = g_slist_append(sdi->probe_groups, pg);
	}

	devc = g_malloc0(sizeof(struct dev_context));
	devc->model = model;
	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
	sdi->priv = devc;
	drvc->instances = g_slist_append(drvc->instances, sdi);
	devices = g_slist_append(devices, sdi);

	serial_close(serial);
	if (!devices)
		sr_serial_dev_inst_free(serial);

	return devices;
}

static GSList *scan_3203(GSList *options)
{
	return scan(options, PPS_3203T_3S);
}

static GSList *dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static int dev_clear(void)
{
	return std_dev_clear(di, NULL);
}

static int cleanup(void)
{
	return dev_clear();
}

static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	struct dev_context *devc;
	struct sr_probe *probe;
	int channel, ret;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	ret = SR_OK;
	if (!probe_group) {
		/* No probe group: global options. */
		switch (key) {
		case SR_CONF_OUTPUT_CHANNEL:
			*data = g_variant_new_string(channel_modes[devc->channel_mode]);
			break;
		case SR_CONF_OVER_CURRENT_PROTECTION:
			*data = g_variant_new_boolean(devc->over_current_protection);
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* We only ever have one channel per probe group in this driver. */
		probe = probe_group->probes->data;
		channel = probe->index;

		switch (key) {
		case SR_CONF_OUTPUT_VOLTAGE:
			*data = g_variant_new_double(devc->config[channel].output_voltage_last);
			break;
		case SR_CONF_OUTPUT_VOLTAGE_MAX:
			*data = g_variant_new_double(devc->config[channel].output_voltage_max);
			break;
		case SR_CONF_OUTPUT_CURRENT:
			*data = g_variant_new_double(devc->config[channel].output_current_last);
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			*data = g_variant_new_double(devc->config[channel].output_current_max);
			break;
		case SR_CONF_OUTPUT_ENABLED:
			*data = g_variant_new_boolean(devc->config[channel].output_enabled);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return ret;
}

static int find_str(const char *str, const char **strings, int array_size)
{
	int idx, i;

	idx = -1;
	for (i = 0; i < array_size; i++) {
		if (!strcmp(str, strings[i])) {
			idx = i;
			break;
		}
	}

	return idx;
}

static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	struct dev_context *devc;
	struct sr_probe *probe;
	gdouble dval;
	int channel, ret, ival;
	const char *sval;
	gboolean bval;

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

	ret = SR_OK;
	devc = sdi->priv;
	if (!probe_group) {
		/* No probe group: global options. */
		switch (key) {
		case SR_CONF_OUTPUT_CHANNEL:
			sval = g_variant_get_string(data, NULL);
			if ((ival = find_str(sval, channel_modes,
							ARRAY_SIZE(channel_modes))) == -1) {
				ret = SR_ERR_ARG;
				break;
			}
			if (devc->model->channel_modes && (1 << ival) == 0) {
				/* Not supported on this model. */
				ret = SR_ERR_ARG;
			}
			if (ival == devc->channel_mode_set)
				/* Nothing to do. */
				break;
			devc->channel_mode_set = ival;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OVER_CURRENT_PROTECTION:
			bval = g_variant_get_boolean(data);
			if (bval == devc->over_current_protection_set)
				/* Nothing to do. */
				break;
			devc->over_current_protection_set = bval;
			devc->config_dirty = TRUE;
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* Probe group specified: per-channel options. */
		/* We only ever have one channel per probe group in this driver. */
		probe = probe_group->probes->data;
		channel = probe->index;

		switch (key) {
		case SR_CONF_OUTPUT_VOLTAGE_MAX:
			dval = g_variant_get_double(data);
			if (dval < 0 || dval > devc->model->channels[channel].voltage[1])
				ret = SR_ERR_ARG;
			devc->config[channel].output_voltage_max = dval;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			dval = g_variant_get_double(data);
			if (dval < 0 || dval > devc->model->channels[channel].current[1])
				ret = SR_ERR_ARG;
			devc->config[channel].output_current_max = dval;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OUTPUT_ENABLED:
			bval = g_variant_get_boolean(data);
			if (bval == devc->config[channel].output_enabled_set)
				/* Nothing to do. */
				break;
			devc->config[channel].output_enabled_set = bval;
			devc->config_dirty = TRUE;
			break;
		default:
			ret = SR_ERR_NA;
		}
	}


	return ret;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	struct dev_context *devc;
	struct sr_probe *probe;
	GVariant *gvar;
	GVariantBuilder gvb;
	int channel, ret, i;

	/* Always available, even without sdi. */
	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
		return SR_OK;
	}

	if (!sdi)
		return SR_ERR_ARG;
	devc = sdi->priv;

	ret = SR_OK;
	if (!probe_group) {
		/* No probe group: global options. */
		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
					devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
			break;
		case SR_CONF_OUTPUT_CHANNEL:
			if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
				/* The 1-channel models. */
				*data = g_variant_new_strv(channel_modes, 1);
			} else {
				/* The other models support all modes. */
				*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
			}
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* Probe group specified: per-channel options. */
		if (!sdi)
			return SR_ERR_ARG;
		/* We only ever have one channel per probe group in this driver. */
		probe = probe_group->probes->data;
		channel = probe->index;

		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
					devopts_pg, ARRAY_SIZE(devopts_pg), sizeof(int32_t));
			break;
		case SR_CONF_OUTPUT_VOLTAGE_MAX:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			/* Min, max, step. */
			for (i = 0; i < 3; i++) {
				gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
				g_variant_builder_add_value(&gvb, gvar);
			}
			*data = g_variant_builder_end(&gvb);
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			/* Min, max, step. */
			for (i = 0; i < 3; i++) {
				gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
				g_variant_builder_add_value(&gvb, gvar);
			}
			*data = g_variant_builder_end(&gvb);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return ret;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;
	if (devc->config_dirty)
		/* Some configuration changes were queued up but didn't
		 * get sent to the device, likely because we were never
		 * in acquisition mode. Send them out now. */
		send_config(sdi);

	return std_serial_dev_close(sdi);
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi,
		void *cb_data)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	uint8_t packet[PACKET_SIZE];

	(void)cb_data;

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

	devc = sdi->priv;
	memset(devc->packet, 0x44, PACKET_SIZE);
	devc->packet_size = 0;

	devc->acquisition_running = TRUE;

	serial = sdi->conn;
	serial_source_add(serial, G_IO_IN, 50, atten_pps3xxx_receive_data, (void *)sdi);
	std_session_send_df_header(cb_data, LOG_PREFIX);

	/* Send a "probe" configuration packet now. */
	memset(packet, 0, PACKET_SIZE);
	packet[0] = 0xaa;
	packet[1] = 0xaa;
	send_packet(sdi, packet);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	struct dev_context *devc;

	(void)cb_data;

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

	devc = sdi->priv;
	devc->acquisition_running = FALSE;

	return SR_OK;
}

SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	.name = "atten-pps3203",
	.longname = "Atten PPS3203T-3S",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan_3203,
	.dev_list = dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = std_serial_dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
fa0d6afe BV	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 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
33c40990 BV	20	#include <string.h>
33c40990 BV	21	#include <errno.h>
fa0d6afe BV	22	#include "protocol.h"
fa0d6afe BV	23
33c40990 BV	24	/*
	25	* The default serial communication settings on the device are 9600
	26	* baud, 9 data bits. The 9th bit isn't actually used, and the vendor
	27	* software uses Mark parity to absorb the extra bit.
	28	*
	29	* Since 9 data bits is not a standard available in POSIX, we use two
	30	* stop bits to skip over the extra bit instead.
	31	*/
	32	#define SERIALCOMM "9600/8n2"
	33
e22aa878	34	static const int32_t scanopts[] = {
33c40990 BV	35	SR_CONF_CONN,
	36	SR_CONF_SERIALCOMM,
	37	};
	38
	39	static const int32_t devopts[] = {
	40	SR_CONF_POWER_SUPPLY,
	41	SR_CONF_CONTINUOUS,
33c40990 BV	42	SR_CONF_OUTPUT_CHANNEL,
	43	SR_CONF_OVER_CURRENT_PROTECTION,
	44	};
	45
	46	static const int32_t devopts_pg[] = {
33c40990 BV	47	SR_CONF_OUTPUT_VOLTAGE,
	48	SR_CONF_OUTPUT_VOLTAGE_MAX,
	49	SR_CONF_OUTPUT_CURRENT,
	50	SR_CONF_OUTPUT_CURRENT_MAX,
	51	SR_CONF_OUTPUT_ENABLED,
	52	};
	53
	54	static const char *channel_modes[] = {
	55	"Independent",
	56	"Series",
	57	"Parallel",
	58	};
	59
	60	static struct pps_model models[] = {
	61	{ PPS_3203T_3S, "PPS3203T-3S",
	62	CHANMODE_INDEPENDENT \| CHANMODE_SERIES \| CHANMODE_PARALLEL,
	63	3,
	64	{
	65	/* Channel 1 */
	66	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	67	/* Channel 2 */
	68	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	69	/* Channel 3 */
	70	{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
	71	},
	72	},
	73	};
	74
	75
	76	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
	77	static struct sr_dev_driver *di = &atten_pps3203_driver_info;
fa0d6afe BV	78
	79	static int init(struct sr_context *sr_ctx)
	80	{
	81	return std_init(sr_ctx, di, LOG_PREFIX);
	82	}
	83
33c40990	84	static GSList scan(GSList options, int modelid)
fa0d6afe	85	{
33c40990	86	struct sr_dev_inst *sdi;
fa0d6afe	87	struct drv_context *drvc;
33c40990 BV	88	struct dev_context *devc;
	89	struct sr_config *src;
	90	struct sr_probe *probe;
	91	struct sr_probe_group *pg;
	92	struct sr_serial_dev_inst *serial;
	93	GSList l, devices;
	94	struct pps_model *model;
	95	uint8_t packet[PACKET_SIZE];
	96	unsigned int i;
	97	int ret;
	98	const char conn, serialcomm;
	99	char channel[10];
fa0d6afe BV	100
	101	devices = NULL;
	102	drvc = di->priv;
	103	drvc->instances = NULL;
	104
33c40990 BV	105	conn = serialcomm = NULL;
	106	for (l = options; l; l = l->next) {
	107	src = l->data;
	108	switch (src->key) {
	109	case SR_CONF_CONN:
	110	conn = g_variant_get_string(src->data, NULL);
	111	break;
	112	case SR_CONF_SERIALCOMM:
	113	serialcomm = g_variant_get_string(src->data, NULL);
	114	break;
	115	}
	116	}
	117	if (!conn)
	118	return NULL;
	119	if (!serialcomm)
	120	serialcomm = SERIALCOMM;
	121
	122	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	123	return NULL;
	124
	125	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	126	return NULL;
	127	serial_flush(serial);
	128
	129	/* This is how the vendor software probes for hardware. */
	130	memset(packet, 0, PACKET_SIZE);
	131	packet[0] = 0xaa;
	132	packet[1] = 0xaa;
	133	if (serial_write(serial, packet, PACKET_SIZE) == -1) {
	134	sr_err("Unable to write while probing for hardware: %s",
	135	strerror(errno));
	136	return NULL;
	137	}
	138	/* The device responds with a 24-byte packet when it receives a packet.
	139	* At 9600 baud, 300ms is long enough for it to have arrived. */
	140	g_usleep(300 * 1000);
	141	memset(packet, 0, PACKET_SIZE);
	142	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	143	sr_err("Unable to read while probing for hardware: %s",
	144	strerror(errno));
	145	return NULL;
	146	}
	147	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	148	/* Doesn't look like an Atten PPS. */
	149	return NULL;
	150	}
	151
	152	model = NULL;
	153	for (i = 0; i < ARRAY_SIZE(models); i++) {
	154	if (models[i].modelid == modelid) {
	155	model = &models[i];
	156	break;
	157	}
	158	}
	159	if (!model) {
	160	sr_err("Unknown modelid %d", modelid);
	161	return NULL;
	162	}
	163
	164	sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
	165	sdi->driver = di;
	166	sdi->inst_type = SR_INST_SERIAL;
	167	sdi->conn = serial;
	168	for (i = 0; i < MAX_CHANNELS; i++) {
169	snprintf(channel, 10, "CH%d", i + 1);
170	probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel);
171	sdi->probes = g_slist_append(sdi->probes, probe);
172	pg = g_malloc(sizeof(struct sr_probe_group));
173	pg->name = g_strdup(channel);
174	pg->probes = g_slist_append(NULL, probe);
175	pg->priv = NULL;
176	sdi->probe_groups = g_slist_append(sdi->probe_groups, pg);
177	}
178
179	devc = g_malloc0(sizeof(struct dev_context));
180	devc->model = model;
181	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
182	sdi->priv = devc;
183	drvc->instances = g_slist_append(drvc->instances, sdi);
184	devices = g_slist_append(devices, sdi);
185
186	serial_close(serial);
187	if (!devices)
188	sr_serial_dev_inst_free(serial);
fa0d6afe BV	189
	190	return devices;
	191	}
	192
33c40990 BV	193	static GSList scan_3203(GSList options)
	194	{
	195	return scan(options, PPS_3203T_3S);
	196	}
	197
fa0d6afe BV	198	static GSList *dev_list(void)
	199	{
	200	return ((struct drv_context *)(di->priv))->instances;
	201	}
	202
	203	static int dev_clear(void)
	204	{
	205	return std_dev_clear(di, NULL);
	206	}
	207
fa0d6afe BV	208	static int cleanup(void)
fa0d6afe BV	209	{
33c40990	210	return dev_clear();
fa0d6afe BV	211	}
	212
	213	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
	214	const struct sr_probe_group *probe_group)
	215	{
33c40990 BV	216	struct dev_context *devc;
	217	struct sr_probe *probe;
	218	int channel, ret;
	219
	220	if (!sdi)
	221	return SR_ERR_ARG;
fa0d6afe	222
33c40990	223	devc = sdi->priv;
fa0d6afe BV	224
fa0d6afe BV	225	ret = SR_OK;
33c40990 BV	226	if (!probe_group) {
	227	/* No probe group: global options. */
	228	switch (key) {
	229	case SR_CONF_OUTPUT_CHANNEL:
fe997353	230	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990 BV	231	break;
	232	case SR_CONF_OVER_CURRENT_PROTECTION:
	233	*data = g_variant_new_boolean(devc->over_current_protection);
	234	break;
	235	default:
	236	return SR_ERR_NA;
	237	}
	238	} else {
	239	/* We only ever have one channel per probe group in this driver. */
	240	probe = probe_group->probes->data;
	241	channel = probe->index;
	242
	243	switch (key) {
	244	case SR_CONF_OUTPUT_VOLTAGE:
	245	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
	246	break;
	247	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	248	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
	249	break;
	250	case SR_CONF_OUTPUT_CURRENT:
	251	*data = g_variant_new_double(devc->config[channel].output_current_last);
	252	break;
	253	case SR_CONF_OUTPUT_CURRENT_MAX:
	254	*data = g_variant_new_double(devc->config[channel].output_current_max);
	255	break;
	256	case SR_CONF_OUTPUT_ENABLED:
	257	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	258	break;
	259	default:
	260	return SR_ERR_NA;
	261	}
fa0d6afe BV	262	}
	263
	264	return ret;
	265	}
	266
33c40990 BV	267	static int find_str(const char str, const char *strings, int array_size)
	268	{
	269	int idx, i;
	270
	271	idx = -1;
	272	for (i = 0; i < array_size; i++) {
	273	if (!strcmp(str, strings[i])) {
	274	idx = i;
	275	break;
	276	}
	277	}
	278
	279	return idx;
	280	}
	281
fa0d6afe BV	282	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
	283	const struct sr_probe_group *probe_group)
	284	{
33c40990 BV	285	struct dev_context *devc;
	286	struct sr_probe *probe;
	287	gdouble dval;
	288	int channel, ret, ival;
	289	const char *sval;
	290	gboolean bval;
fa0d6afe BV	291
	292	if (sdi->status != SR_ST_ACTIVE)
	293	return SR_ERR_DEV_CLOSED;
	294
	295	ret = SR_OK;
33c40990 BV	296	devc = sdi->priv;
	297	if (!probe_group) {
	298	/* No probe group: global options. */
	299	switch (key) {
	300	case SR_CONF_OUTPUT_CHANNEL:
	301	sval = g_variant_get_string(data, NULL);
	302	if ((ival = find_str(sval, channel_modes,
	303	ARRAY_SIZE(channel_modes))) == -1) {
	304	ret = SR_ERR_ARG;
	305	break;
	306	}
	307	if (devc->model->channel_modes && (1 << ival) == 0) {
	308	/* Not supported on this model. */
	309	ret = SR_ERR_ARG;
	310	}
	311	if (ival == devc->channel_mode_set)
	312	/* Nothing to do. */
	313	break;
	314	devc->channel_mode_set = ival;
ab988ecb	315	devc->config_dirty = TRUE;
33c40990 BV	316	break;
	317	case SR_CONF_OVER_CURRENT_PROTECTION:
	318	bval = g_variant_get_boolean(data);
	319	if (bval == devc->over_current_protection_set)
	320	/* Nothing to do. */
	321	break;
	322	devc->over_current_protection_set = bval;
ab988ecb	323	devc->config_dirty = TRUE;
33c40990 BV	324	break;
	325	default:
	326	return SR_ERR_NA;
	327	}
	328	} else {
	329	/* Probe group specified: per-channel options. */
	330	/* We only ever have one channel per probe group in this driver. */
	331	probe = probe_group->probes->data;
	332	channel = probe->index;
	333
	334	switch (key) {
	335	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	336	dval = g_variant_get_double(data);
	337	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	338	ret = SR_ERR_ARG;
	339	devc->config[channel].output_voltage_max = dval;
ab988ecb	340	devc->config_dirty = TRUE;
33c40990 BV	341	break;
	342	case SR_CONF_OUTPUT_CURRENT_MAX:
	343	dval = g_variant_get_double(data);
	344	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	345	ret = SR_ERR_ARG;
	346	devc->config[channel].output_current_max = dval;
ab988ecb	347	devc->config_dirty = TRUE;
33c40990 BV	348	break;
	349	case SR_CONF_OUTPUT_ENABLED:
	350	bval = g_variant_get_boolean(data);
	351	if (bval == devc->config[channel].output_enabled_set)
	352	/* Nothing to do. */
	353	break;
	354	devc->config[channel].output_enabled_set = bval;
ab988ecb	355	devc->config_dirty = TRUE;
33c40990 BV	356	break;
	357	default:
	358	ret = SR_ERR_NA;
	359	}
fa0d6afe BV	360	}
fa0d6afe BV	361
33c40990	362
fa0d6afe BV	363	return ret;
	364	}
	365
	366	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	367	const struct sr_probe_group *probe_group)
	368	{
33c40990 BV	369	struct dev_context *devc;
	370	struct sr_probe *probe;
	371	GVariant *gvar;
	372	GVariantBuilder gvb;
	373	int channel, ret, i;
	374
	375	/* Always available, even without sdi. */
	376	if (key == SR_CONF_SCAN_OPTIONS) {
	377	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
e22aa878	378	scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
33c40990 BV	379	return SR_OK;
	380	}
	381
e22aa878 BV	382	if (!sdi)
e22aa878 BV	383	return SR_ERR_ARG;
33c40990	384	devc = sdi->priv;
fa0d6afe BV	385
fa0d6afe BV	386	ret = SR_OK;
33c40990 BV	387	if (!probe_group) {
	388	/* No probe group: global options. */
	389	switch (key) {
	390	case SR_CONF_DEVICE_OPTIONS:
	391	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
e22aa878	392	devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
33c40990 BV	393	break;
	394	case SR_CONF_OUTPUT_CHANNEL:
	395	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	396	/* The 1-channel models. */
	397	*data = g_variant_new_strv(channel_modes, 1);
	398	} else {
	399	/* The other models support all modes. */
	400	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	401	}
	402	break;
	403	default:
	404	return SR_ERR_NA;
	405	}
	406	} else {
	407	/* Probe group specified: per-channel options. */
	408	if (!sdi)
	409	return SR_ERR_ARG;
	410	/* We only ever have one channel per probe group in this driver. */
	411	probe = probe_group->probes->data;
	412	channel = probe->index;
	413
	414	switch (key) {
	415	case SR_CONF_DEVICE_OPTIONS:
	416	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	417	devopts_pg, ARRAY_SIZE(devopts_pg), sizeof(int32_t));
	418	break;
	419	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	420	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	421	/* Min, max, step. */
	422	for (i = 0; i < 3; i++) {
	423	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	424	g_variant_builder_add_value(&gvb, gvar);
	425	}
	426	*data = g_variant_builder_end(&gvb);
	427	break;
	428	case SR_CONF_OUTPUT_CURRENT_MAX:
	429	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	430	/* Min, max, step. */
	431	for (i = 0; i < 3; i++) {
	432	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	433	g_variant_builder_add_value(&gvb, gvar);
	434	}
	435	*data = g_variant_builder_end(&gvb);
	436	break;
	437	default:
	438	return SR_ERR_NA;
	439	}
fa0d6afe BV	440	}
	441
	442	return ret;
	443	}
	444
ab988ecb BV	445	static int dev_close(struct sr_dev_inst *sdi)
	446	{
	447	struct dev_context *devc;
	448
	449	devc = sdi->priv;
	450	if (devc->config_dirty)
	451	/* Some configuration changes were queued up but didn't
	452	* get sent to the device, likely because we were never
	453	* in acquisition mode. Send them out now. */
	454	send_config(sdi);
	455
	456	return std_serial_dev_close(sdi);
	457	}
	458
fa0d6afe	459	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	460	void *cb_data)
fa0d6afe	461	{
33c40990 BV	462	struct dev_context *devc;
	463	struct sr_serial_dev_inst *serial;
	464	uint8_t packet[PACKET_SIZE];
	465
fa0d6afe BV	466	(void)cb_data;
	467
	468	if (sdi->status != SR_ST_ACTIVE)
	469	return SR_ERR_DEV_CLOSED;
	470
33c40990 BV	471	devc = sdi->priv;
	472	memset(devc->packet, 0x44, PACKET_SIZE);
	473	devc->packet_size = 0;
	474
	475	devc->acquisition_running = TRUE;
	476
	477	serial = sdi->conn;
	478	serial_source_add(serial, G_IO_IN, 50, atten_pps3xxx_receive_data, (void *)sdi);
	479	std_session_send_df_header(cb_data, LOG_PREFIX);
	480
	481	/* Send a "probe" configuration packet now. */
	482	memset(packet, 0, PACKET_SIZE);
	483	packet[0] = 0xaa;
	484	packet[1] = 0xaa;
	485	send_packet(sdi, packet);
fa0d6afe BV	486
	487	return SR_OK;
	488	}
	489
	490	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	491	{
33c40990 BV	492	struct dev_context *devc;
33c40990 BV	493
fa0d6afe BV	494	(void)cb_data;
	495
	496	if (sdi->status != SR_ST_ACTIVE)
	497	return SR_ERR_DEV_CLOSED;
	498
33c40990 BV	499	devc = sdi->priv;
33c40990 BV	500	devc->acquisition_running = FALSE;
fa0d6afe BV	501
	502	return SR_OK;
	503	}
	504
33c40990 BV	505	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	506	.name = "atten-pps3203",
	507	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	508	.api_version = 1,
	509	.init = init,
	510	.cleanup = cleanup,
33c40990	511	.scan = scan_3203,
fa0d6afe BV	512	.dev_list = dev_list,
	513	.dev_clear = dev_clear,
	514	.config_get = config_get,
	515	.config_set = config_set,
	516	.config_list = config_list,
33c40990	517	.dev_open = std_serial_dev_open,
ab988ecb	518	.dev_close = dev_close,
fa0d6afe BV	519	.dev_acquisition_start = dev_acquisition_start,
	520	.dev_acquisition_stop = dev_acquisition_stop,
	521	.priv = NULL,
	522	};