[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 hwopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

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

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

static const int32_t devopts_pg[] = {
	SR_CONF_POWER_SUPPLY,
	SR_CONF_CONTINUOUS,
	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,
				hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
		return SR_OK;
	}

	if (!sdi) {
		if (key == SR_CONF_DEVICE_OPTIONS) {
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
					devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
			return SR_OK;

		} else {
			/* Everything else needs an 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_sdi, ARRAY_SIZE(devopts_sdi), 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
	34	static const int32_t hwopts[] = {
	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,
	42	};
	43
	44	static const int32_t devopts_sdi[] = {
	45	SR_CONF_POWER_SUPPLY,
	46	SR_CONF_CONTINUOUS,
	47	SR_CONF_OUTPUT_CHANNEL,
	48	SR_CONF_OVER_CURRENT_PROTECTION,
	49	};
	50
	51	static const int32_t devopts_pg[] = {
	52	SR_CONF_POWER_SUPPLY,
	53	SR_CONF_CONTINUOUS,
	54	SR_CONF_OUTPUT_VOLTAGE,
	55	SR_CONF_OUTPUT_VOLTAGE_MAX,
	56	SR_CONF_OUTPUT_CURRENT,
	57	SR_CONF_OUTPUT_CURRENT_MAX,
	58	SR_CONF_OUTPUT_ENABLED,
	59	};
	60
	61	static const char *channel_modes[] = {
	62	"Independent",
	63	"Series",
	64	"Parallel",
	65	};
	66
	67	static struct pps_model models[] = {
	68	{ PPS_3203T_3S, "PPS3203T-3S",
	69	CHANMODE_INDEPENDENT \| CHANMODE_SERIES \| CHANMODE_PARALLEL,
	70	3,
	71	{
	72	/* Channel 1 */
	73	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	74	/* Channel 2 */
	75	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	76	/* Channel 3 */
	77	{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
	78	},
	79	},
	80	};
	81
	82
	83	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
	84	static struct sr_dev_driver *di = &atten_pps3203_driver_info;
fa0d6afe BV	85
	86	static int init(struct sr_context *sr_ctx)
	87	{
	88	return std_init(sr_ctx, di, LOG_PREFIX);
	89	}
	90
33c40990	91	static GSList scan(GSList options, int modelid)
fa0d6afe	92	{
33c40990	93	struct sr_dev_inst *sdi;
fa0d6afe	94	struct drv_context *drvc;
33c40990 BV	95	struct dev_context *devc;
	96	struct sr_config *src;
	97	struct sr_probe *probe;
	98	struct sr_probe_group *pg;
	99	struct sr_serial_dev_inst *serial;
	100	GSList l, devices;
	101	struct pps_model *model;
	102	uint8_t packet[PACKET_SIZE];
	103	unsigned int i;
	104	int ret;
	105	const char conn, serialcomm;
	106	char channel[10];
fa0d6afe BV	107
	108	devices = NULL;
	109	drvc = di->priv;
	110	drvc->instances = NULL;
	111
33c40990 BV	112	conn = serialcomm = NULL;
	113	for (l = options; l; l = l->next) {
	114	src = l->data;
	115	switch (src->key) {
	116	case SR_CONF_CONN:
	117	conn = g_variant_get_string(src->data, NULL);
	118	break;
	119	case SR_CONF_SERIALCOMM:
	120	serialcomm = g_variant_get_string(src->data, NULL);
	121	break;
	122	}
	123	}
	124	if (!conn)
	125	return NULL;
	126	if (!serialcomm)
	127	serialcomm = SERIALCOMM;
	128
	129	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	130	return NULL;
	131
	132	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	133	return NULL;
	134	serial_flush(serial);
	135
	136	/* This is how the vendor software probes for hardware. */
	137	memset(packet, 0, PACKET_SIZE);
	138	packet[0] = 0xaa;
	139	packet[1] = 0xaa;
	140	if (serial_write(serial, packet, PACKET_SIZE) == -1) {
	141	sr_err("Unable to write while probing for hardware: %s",
	142	strerror(errno));
	143	return NULL;
	144	}
	145	/* The device responds with a 24-byte packet when it receives a packet.
	146	* At 9600 baud, 300ms is long enough for it to have arrived. */
	147	g_usleep(300 * 1000);
	148	memset(packet, 0, PACKET_SIZE);
	149	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	150	sr_err("Unable to read while probing for hardware: %s",
	151	strerror(errno));
	152	return NULL;
	153	}
	154	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	155	/* Doesn't look like an Atten PPS. */
	156	return NULL;
	157	}
	158
	159	model = NULL;
	160	for (i = 0; i < ARRAY_SIZE(models); i++) {
	161	if (models[i].modelid == modelid) {
	162	model = &models[i];
	163	break;
	164	}
	165	}
	166	if (!model) {
	167	sr_err("Unknown modelid %d", modelid);
	168	return NULL;
	169	}
	170
	171	sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
	172	sdi->driver = di;
	173	sdi->inst_type = SR_INST_SERIAL;
	174	sdi->conn = serial;
	175	for (i = 0; i < MAX_CHANNELS; i++) {
176	snprintf(channel, 10, "CH%d", i + 1);
177	probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel);
178	sdi->probes = g_slist_append(sdi->probes, probe);
179	pg = g_malloc(sizeof(struct sr_probe_group));
180	pg->name = g_strdup(channel);
181	pg->probes = g_slist_append(NULL, probe);
182	pg->priv = NULL;
183	sdi->probe_groups = g_slist_append(sdi->probe_groups, pg);
184	}
185
186	devc = g_malloc0(sizeof(struct dev_context));
187	devc->model = model;
188	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
189	sdi->priv = devc;
190	drvc->instances = g_slist_append(drvc->instances, sdi);
191	devices = g_slist_append(devices, sdi);
192
193	serial_close(serial);
194	if (!devices)
195	sr_serial_dev_inst_free(serial);
fa0d6afe BV	196
	197	return devices;
	198	}
	199
33c40990 BV	200	static GSList scan_3203(GSList options)
	201	{
	202	return scan(options, PPS_3203T_3S);
	203	}
	204
fa0d6afe BV	205	static GSList *dev_list(void)
	206	{
	207	return ((struct drv_context *)(di->priv))->instances;
	208	}
	209
	210	static int dev_clear(void)
	211	{
	212	return std_dev_clear(di, NULL);
	213	}
	214
fa0d6afe BV	215	static int cleanup(void)
fa0d6afe BV	216	{
33c40990	217	return dev_clear();
fa0d6afe BV	218	}
	219
	220	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
	221	const struct sr_probe_group *probe_group)
	222	{
33c40990 BV	223	struct dev_context *devc;
	224	struct sr_probe *probe;
	225	int channel, ret;
	226
	227	if (!sdi)
	228	return SR_ERR_ARG;
fa0d6afe	229
33c40990	230	devc = sdi->priv;
fa0d6afe BV	231
fa0d6afe BV	232	ret = SR_OK;
33c40990 BV	233	if (!probe_group) {
	234	/* No probe group: global options. */
	235	switch (key) {
	236	case SR_CONF_OUTPUT_CHANNEL:
fe997353	237	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990 BV	238	break;
	239	case SR_CONF_OVER_CURRENT_PROTECTION:
	240	*data = g_variant_new_boolean(devc->over_current_protection);
	241	break;
	242	default:
	243	return SR_ERR_NA;
	244	}
	245	} else {
	246	/* We only ever have one channel per probe group in this driver. */
	247	probe = probe_group->probes->data;
	248	channel = probe->index;
	249
	250	switch (key) {
	251	case SR_CONF_OUTPUT_VOLTAGE:
	252	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
	253	break;
	254	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	255	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
	256	break;
	257	case SR_CONF_OUTPUT_CURRENT:
	258	*data = g_variant_new_double(devc->config[channel].output_current_last);
	259	break;
	260	case SR_CONF_OUTPUT_CURRENT_MAX:
	261	*data = g_variant_new_double(devc->config[channel].output_current_max);
	262	break;
	263	case SR_CONF_OUTPUT_ENABLED:
	264	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	265	break;
	266	default:
	267	return SR_ERR_NA;
	268	}
fa0d6afe BV	269	}
	270
	271	return ret;
	272	}
	273
33c40990 BV	274	static int find_str(const char str, const char *strings, int array_size)
	275	{
	276	int idx, i;
	277
	278	idx = -1;
	279	for (i = 0; i < array_size; i++) {
	280	if (!strcmp(str, strings[i])) {
	281	idx = i;
	282	break;
	283	}
	284	}
	285
	286	return idx;
	287	}
	288
fa0d6afe BV	289	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
	290	const struct sr_probe_group *probe_group)
	291	{
33c40990 BV	292	struct dev_context *devc;
	293	struct sr_probe *probe;
	294	gdouble dval;
	295	int channel, ret, ival;
	296	const char *sval;
	297	gboolean bval;
fa0d6afe BV	298
	299	if (sdi->status != SR_ST_ACTIVE)
	300	return SR_ERR_DEV_CLOSED;
	301
	302	ret = SR_OK;
33c40990 BV	303	devc = sdi->priv;
	304	if (!probe_group) {
	305	/* No probe group: global options. */
	306	switch (key) {
	307	case SR_CONF_OUTPUT_CHANNEL:
	308	sval = g_variant_get_string(data, NULL);
	309	if ((ival = find_str(sval, channel_modes,
	310	ARRAY_SIZE(channel_modes))) == -1) {
	311	ret = SR_ERR_ARG;
	312	break;
	313	}
	314	if (devc->model->channel_modes && (1 << ival) == 0) {
	315	/* Not supported on this model. */
	316	ret = SR_ERR_ARG;
	317	}
	318	if (ival == devc->channel_mode_set)
	319	/* Nothing to do. */
	320	break;
	321	devc->channel_mode_set = ival;
ab988ecb	322	devc->config_dirty = TRUE;
33c40990 BV	323	break;
	324	case SR_CONF_OVER_CURRENT_PROTECTION:
	325	bval = g_variant_get_boolean(data);
	326	if (bval == devc->over_current_protection_set)
	327	/* Nothing to do. */
	328	break;
	329	devc->over_current_protection_set = bval;
ab988ecb	330	devc->config_dirty = TRUE;
33c40990 BV	331	break;
	332	default:
	333	return SR_ERR_NA;
	334	}
	335	} else {
	336	/* Probe group specified: per-channel options. */
	337	/* We only ever have one channel per probe group in this driver. */
	338	probe = probe_group->probes->data;
	339	channel = probe->index;
	340
	341	switch (key) {
	342	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	343	dval = g_variant_get_double(data);
	344	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	345	ret = SR_ERR_ARG;
	346	devc->config[channel].output_voltage_max = dval;
ab988ecb	347	devc->config_dirty = TRUE;
33c40990 BV	348	break;
	349	case SR_CONF_OUTPUT_CURRENT_MAX:
	350	dval = g_variant_get_double(data);
	351	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	352	ret = SR_ERR_ARG;
	353	devc->config[channel].output_current_max = dval;
ab988ecb	354	devc->config_dirty = TRUE;
33c40990 BV	355	break;
	356	case SR_CONF_OUTPUT_ENABLED:
	357	bval = g_variant_get_boolean(data);
	358	if (bval == devc->config[channel].output_enabled_set)
	359	/* Nothing to do. */
	360	break;
	361	devc->config[channel].output_enabled_set = bval;
ab988ecb	362	devc->config_dirty = TRUE;
33c40990 BV	363	break;
	364	default:
	365	ret = SR_ERR_NA;
	366	}
fa0d6afe BV	367	}
fa0d6afe BV	368
33c40990	369
fa0d6afe BV	370	return ret;
	371	}
	372
	373	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	374	const struct sr_probe_group *probe_group)
	375	{
33c40990 BV	376	struct dev_context *devc;
	377	struct sr_probe *probe;
	378	GVariant *gvar;
	379	GVariantBuilder gvb;
	380	int channel, ret, i;
	381
	382	/* Always available, even without sdi. */
	383	if (key == SR_CONF_SCAN_OPTIONS) {
	384	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	385	hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
	386	return SR_OK;
	387	}
	388
	389	if (!sdi) {
	390	if (key == SR_CONF_DEVICE_OPTIONS) {
	391	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	392	devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
	393	return SR_OK;
fa0d6afe	394
33c40990 BV	395	} else {
	396	/* Everything else needs an sdi. */
	397	return SR_ERR_ARG;
	398	}
	399	}
	400	devc = sdi->priv;
fa0d6afe BV	401
fa0d6afe BV	402	ret = SR_OK;
33c40990 BV	403	if (!probe_group) {
	404	/* No probe group: global options. */
	405	switch (key) {
	406	case SR_CONF_DEVICE_OPTIONS:
	407	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	408	devopts_sdi, ARRAY_SIZE(devopts_sdi), sizeof(int32_t));
	409	break;
	410	case SR_CONF_OUTPUT_CHANNEL:
	411	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	412	/* The 1-channel models. */
	413	*data = g_variant_new_strv(channel_modes, 1);
	414	} else {
	415	/* The other models support all modes. */
	416	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	417	}
	418	break;
	419	default:
	420	return SR_ERR_NA;
	421	}
	422	} else {
	423	/* Probe group specified: per-channel options. */
	424	if (!sdi)
	425	return SR_ERR_ARG;
	426	/* We only ever have one channel per probe group in this driver. */
	427	probe = probe_group->probes->data;
	428	channel = probe->index;
	429
	430	switch (key) {
	431	case SR_CONF_DEVICE_OPTIONS:
	432	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	433	devopts_pg, ARRAY_SIZE(devopts_pg), sizeof(int32_t));
	434	break;
	435	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	436	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	437	/* Min, max, step. */
	438	for (i = 0; i < 3; i++) {
	439	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	440	g_variant_builder_add_value(&gvb, gvar);
	441	}
	442	*data = g_variant_builder_end(&gvb);
	443	break;
	444	case SR_CONF_OUTPUT_CURRENT_MAX:
	445	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	446	/* Min, max, step. */
	447	for (i = 0; i < 3; i++) {
	448	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	449	g_variant_builder_add_value(&gvb, gvar);
	450	}
	451	*data = g_variant_builder_end(&gvb);
	452	break;
	453	default:
	454	return SR_ERR_NA;
	455	}
fa0d6afe BV	456	}
	457
	458	return ret;
	459	}
	460
ab988ecb BV	461	static int dev_close(struct sr_dev_inst *sdi)
	462	{
	463	struct dev_context *devc;
	464
	465	devc = sdi->priv;
	466	if (devc->config_dirty)
	467	/* Some configuration changes were queued up but didn't
	468	* get sent to the device, likely because we were never
	469	* in acquisition mode. Send them out now. */
	470	send_config(sdi);
	471
	472	return std_serial_dev_close(sdi);
	473	}
	474
fa0d6afe	475	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	476	void *cb_data)
fa0d6afe	477	{
33c40990 BV	478	struct dev_context *devc;
	479	struct sr_serial_dev_inst *serial;
	480	uint8_t packet[PACKET_SIZE];
	481
fa0d6afe BV	482	(void)cb_data;
	483
	484	if (sdi->status != SR_ST_ACTIVE)
	485	return SR_ERR_DEV_CLOSED;
	486
33c40990 BV	487	devc = sdi->priv;
	488	memset(devc->packet, 0x44, PACKET_SIZE);
	489	devc->packet_size = 0;
	490
	491	devc->acquisition_running = TRUE;
	492
	493	serial = sdi->conn;
	494	serial_source_add(serial, G_IO_IN, 50, atten_pps3xxx_receive_data, (void *)sdi);
	495	std_session_send_df_header(cb_data, LOG_PREFIX);
	496
	497	/* Send a "probe" configuration packet now. */
	498	memset(packet, 0, PACKET_SIZE);
	499	packet[0] = 0xaa;
	500	packet[1] = 0xaa;
	501	send_packet(sdi, packet);
fa0d6afe BV	502
	503	return SR_OK;
	504	}
	505
	506	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	507	{
33c40990 BV	508	struct dev_context *devc;
33c40990 BV	509
fa0d6afe BV	510	(void)cb_data;
	511
	512	if (sdi->status != SR_ST_ACTIVE)
	513	return SR_ERR_DEV_CLOSED;
	514
33c40990 BV	515	devc = sdi->priv;
33c40990 BV	516	devc->acquisition_running = FALSE;
fa0d6afe BV	517
	518	return SR_OK;
	519	}
	520
33c40990 BV	521	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	522	.name = "atten-pps3203",
	523	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	524	.api_version = 1,
	525	.init = init,
	526	.cleanup = cleanup,
33c40990	527	.scan = scan_3203,
fa0d6afe BV	528	.dev_list = dev_list,
	529	.dev_clear = dev_clear,
	530	.config_get = config_get,
	531	.config_set = config_set,
	532	.config_list = config_list,
33c40990	533	.dev_open = std_serial_dev_open,
ab988ecb	534	.dev_close = dev_close,
fa0d6afe BV	535	.dev_acquisition_start = dev_acquisition_start,
	536	.dev_acquisition_stop = dev_acquisition_stop,
	537	.priv = NULL,
	538	};