[libsigrok.git] / src / 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 <config.h>
#include <string.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 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_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_OVER_CURRENT_PROTECTION_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,
	SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
};

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

static const 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 } },
		},
	},
};

static GSList *scan(struct sr_dev_driver *di, GSList *options, int modelid)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_channel *ch;
	struct sr_channel_group *cg;
	struct sr_serial_dev_inst *serial;
	GSList *l, *devices;
	const struct pps_model *model;
	uint8_t packet[PACKET_SIZE];
	unsigned int i;
	int delay_ms, ret;
	const char *conn, *serialcomm;
	char channel[10];

	devices = NULL;
	drvc = di->context;

	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;

	serial = sr_serial_dev_inst_new(conn, serialcomm);

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

	serial_flush(serial);

	/* This is how the vendor software scans for hardware. */
	memset(packet, 0, PACKET_SIZE);
	packet[0] = 0xaa;
	packet[1] = 0xaa;
	delay_ms = serial_timeout(serial, PACKET_SIZE);
	if (serial_write_blocking(serial, packet, PACKET_SIZE, delay_ms) < PACKET_SIZE) {
		sr_err("Unable to write while probing for hardware.");
		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",
				sr_strerror(ret));
		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 = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup("Atten");
	sdi->model = g_strdup(model->name);
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	for (i = 0; i < MAX_CHANNELS; i++) {
		snprintf(channel, 10, "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));
	devc->model = model;
	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
	devc->delay_ms = delay_ms;
	sdi->priv = devc;
	devices = g_slist_append(devices, sdi);

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

	return std_scan_complete(di, devices);
}

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

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;
	int channel, ret;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	ret = SR_OK;
	if (!cg) {
		/* No channel group: global options. */
		switch (key) {
		case SR_CONF_CHANNEL_CONFIG:
			*data = g_variant_new_string(channel_modes[devc->channel_mode]);
			break;
		case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
			*data = g_variant_new_boolean(devc->over_current_protection);
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* We only ever have one channel per channel group in this driver. */
		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;
		case SR_CONF_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(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;
	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 (!cg) {
		/* No channel group: global options. */
		switch (key) {
		case SR_CONF_CHANNEL_CONFIG:
			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_ENABLED:
			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 {
		/* Channel group specified: per-channel options. */
		/* We only ever have one channel per channel group in this driver. */
		ch = cg->channels->data;
		channel = ch->index;

		switch (key) {
		case SR_CONF_VOLTAGE_TARGET:
			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_CURRENT_LIMIT:
			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_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(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;
	GVariant *gvar;
	GVariantBuilder gvb;
	int channel, ret, i;

	/* Always available. */
	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;

	devc = sdi->priv;
	ret = SR_OK;
	if (!cg) {
		/* No channel group: global options. */
		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_CHANNEL_CONFIG:
			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 {
		/* Channel group specified: per-channel options. */
		if (!sdi)
			return SR_ERR_ARG;
		/* We only ever have one channel per channel group in this driver. */
		ch = cg->channels->data;
		channel = ch->index;

		switch (key) {
		case SR_CONF_DEVICE_OPTIONS:
			*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
					devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
			break;
		case SR_CONF_VOLTAGE_TARGET:
			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_CURRENT_LIMIT:
			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)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	uint8_t packet[PACKET_SIZE];

	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(sdi->session, serial, G_IO_IN, 50,
			atten_pps3xxx_receive_data, (void *)sdi);
	std_session_send_df_header(sdi, LOG_PREFIX);

	/* Send a "channel" 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)
{
	struct dev_context *devc;

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

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

	return SR_OK;
}

static struct sr_dev_driver atten_pps3203_driver_info = {
	.name = "atten-pps3203",
	.longname = "Atten PPS3203T-3S",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan_3203,
	.dev_list = std_dev_list,
	.dev_clear = NULL,
	.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,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(atten_pps3203_driver_info);
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
6ec6c43b	20	#include <config.h>
33c40990	21	#include <string.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
584560f1	34	static const uint32_t scanopts[] = {
33c40990 BV	35	SR_CONF_CONN,
	36	SR_CONF_SERIALCOMM,
	37	};
	38
1f889afd	39	static const uint32_t drvopts[] = {
33c40990	40	SR_CONF_POWER_SUPPLY,
d6fa8ace BV	41	};
d6fa8ace BV	42
1f889afd	43	static const uint32_t devopts[] = {
e91bb0a6	44	SR_CONF_CONTINUOUS,
7a0b98b5	45	SR_CONF_CHANNEL_CONFIG \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5827f61b	46	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED \| SR_CONF_GET \| SR_CONF_SET,
33c40990 BV	47	};
33c40990 BV	48
584560f1	49	static const uint32_t devopts_cg[] = {
7a0b98b5 AJ	50	SR_CONF_VOLTAGE \| SR_CONF_GET,
	51	SR_CONF_VOLTAGE_TARGET \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	52	SR_CONF_CURRENT \| SR_CONF_GET,
	53	SR_CONF_CURRENT_LIMIT \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	54	SR_CONF_ENABLED \| SR_CONF_GET \| SR_CONF_SET,
33c40990 BV	55	};
	56
	57	static const char *channel_modes[] = {
	58	"Independent",
	59	"Series",
	60	"Parallel",
	61	};
	62
329733d9	63	static const struct pps_model models[] = {
33c40990 BV	64	{ PPS_3203T_3S, "PPS3203T-3S",
	65	CHANMODE_INDEPENDENT \| CHANMODE_SERIES \| CHANMODE_PARALLEL,
	66	3,
	67	{
	68	/* Channel 1 */
	69	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	70	/* Channel 2 */
	71	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	72	/* Channel 3 */
	73	{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
	74	},
	75	},
	76	};
	77
4f840ce9	78	static GSList scan(struct sr_dev_driver di, GSList *options, int modelid)
fa0d6afe	79	{
33c40990	80	struct sr_dev_inst *sdi;
fa0d6afe	81	struct drv_context *drvc;
33c40990 BV	82	struct dev_context *devc;
33c40990 BV	83	struct sr_config *src;
ba7dd8bb	84	struct sr_channel *ch;
40fd0264	85	struct sr_channel_group *cg;
33c40990 BV	86	struct sr_serial_dev_inst *serial;
33c40990 BV	87	GSList l, devices;
329733d9	88	const struct pps_model *model;
33c40990 BV	89	uint8_t packet[PACKET_SIZE];
33c40990 BV	90	unsigned int i;
2eb1612d	91	int delay_ms, ret;
33c40990 BV	92	const char conn, serialcomm;
33c40990 BV	93	char channel[10];
fa0d6afe BV	94
fa0d6afe BV	95	devices = NULL;
41812aca	96	drvc = di->context;
fa0d6afe	97
33c40990 BV	98	conn = serialcomm = NULL;
	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	if (!conn)
	111	return NULL;
	112	if (!serialcomm)
	113	serialcomm = SERIALCOMM;
	114
91219afc	115	serial = sr_serial_dev_inst_new(conn, serialcomm);
33c40990	116
5305266a	117	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
33c40990	118	return NULL;
91219afc	119
33c40990 BV	120	serial_flush(serial);
33c40990 BV	121
945cfd4f	122	/* This is how the vendor software scans for hardware. */
33c40990 BV	123	memset(packet, 0, PACKET_SIZE);
	124	packet[0] = 0xaa;
	125	packet[1] = 0xaa;
2eb1612d BV	126	delay_ms = serial_timeout(serial, PACKET_SIZE);
2eb1612d BV	127	if (serial_write_blocking(serial, packet, PACKET_SIZE, delay_ms) < PACKET_SIZE) {
081c214e	128	sr_err("Unable to write while probing for hardware.");
33c40990 BV	129	return NULL;
	130	}
	131	/* The device responds with a 24-byte packet when it receives a packet.
	132	* At 9600 baud, 300ms is long enough for it to have arrived. */
	133	g_usleep(300 * 1000);
	134	memset(packet, 0, PACKET_SIZE);
	135	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	136	sr_err("Unable to read while probing for hardware: %s",
8d522801	137	sr_strerror(ret));
33c40990 BV	138	return NULL;
	139	}
	140	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	141	/* Doesn't look like an Atten PPS. */
	142	return NULL;
	143	}
	144
	145	model = NULL;
	146	for (i = 0; i < ARRAY_SIZE(models); i++) {
	147	if (models[i].modelid == modelid) {
	148	model = &models[i];
	149	break;
	150	}
	151	}
	152	if (!model) {
	153	sr_err("Unknown modelid %d", modelid);
	154	return NULL;
	155	}
	156
aac29cc1	157	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	158	sdi->status = SR_ST_INACTIVE;
	159	sdi->vendor = g_strdup("Atten");
	160	sdi->model = g_strdup(model->name);
33c40990 BV	161	sdi->inst_type = SR_INST_SERIAL;
	162	sdi->conn = serial;
	163	for (i = 0; i < MAX_CHANNELS; i++) {
	164	snprintf(channel, 10, "CH%d", i + 1);
5e23fcab	165	ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
40fd0264 UH	166	cg = g_malloc(sizeof(struct sr_channel_group));
40fd0264 UH	167	cg->name = g_strdup(channel);
ba7dd8bb	168	cg->channels = g_slist_append(NULL, ch);
40fd0264 UH	169	cg->priv = NULL;
40fd0264 UH	170	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
33c40990 BV	171	}
	172
	173	devc = g_malloc0(sizeof(struct dev_context));
	174	devc->model = model;
	175	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
2eb1612d	176	devc->delay_ms = delay_ms;
33c40990	177	sdi->priv = devc;
33c40990 BV	178	devices = g_slist_append(devices, sdi);
	179
	180	serial_close(serial);
	181	if (!devices)
	182	sr_serial_dev_inst_free(serial);
fa0d6afe	183
15a5bfe4	184	return std_scan_complete(di, devices);
fa0d6afe BV	185	}
fa0d6afe BV	186
4f840ce9	187	static GSList scan_3203(struct sr_dev_driver di, GSList *options)
33c40990	188	{
4f840ce9	189	return scan(di, options, PPS_3203T_3S);
33c40990 BV	190	}
33c40990 BV	191
584560f1	192	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	193	const struct sr_channel_group *cg)
fa0d6afe	194	{
33c40990	195	struct dev_context *devc;
ba7dd8bb	196	struct sr_channel *ch;
33c40990 BV	197	int channel, ret;
	198
	199	if (!sdi)
	200	return SR_ERR_ARG;
fa0d6afe	201
33c40990	202	devc = sdi->priv;
fa0d6afe BV	203
fa0d6afe BV	204	ret = SR_OK;
53b4680f	205	if (!cg) {
660e398f	206	/* No channel group: global options. */
33c40990	207	switch (key) {
7a0b98b5	208	case SR_CONF_CHANNEL_CONFIG:
fe997353	209	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990	210	break;
a1eaa9e0	211	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	212	*data = g_variant_new_boolean(devc->over_current_protection);
	213	break;
	214	default:
	215	return SR_ERR_NA;
	216	}
	217	} else {
660e398f	218	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	219	ch = cg->channels->data;
ba7dd8bb UH	220	channel = ch->index;
33c40990 BV	221
33c40990 BV	222	switch (key) {
7a0b98b5	223	case SR_CONF_VOLTAGE:
33c40990 BV	224	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
33c40990 BV	225	break;
7a0b98b5	226	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	227	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
33c40990 BV	228	break;
7a0b98b5	229	case SR_CONF_CURRENT:
33c40990 BV	230	*data = g_variant_new_double(devc->config[channel].output_current_last);
33c40990 BV	231	break;
7a0b98b5	232	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	233	*data = g_variant_new_double(devc->config[channel].output_current_max);
33c40990 BV	234	break;
7a0b98b5	235	case SR_CONF_ENABLED:
33c40990 BV	236	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	237	break;
	238	default:
	239	return SR_ERR_NA;
	240	}
fa0d6afe BV	241	}
	242
	243	return ret;
	244	}
	245
33c40990 BV	246	static int find_str(const char str, const char *strings, int array_size)
	247	{
	248	int idx, i;
	249
	250	idx = -1;
	251	for (i = 0; i < array_size; i++) {
	252	if (!strcmp(str, strings[i])) {
	253	idx = i;
	254	break;
	255	}
	256	}
	257
	258	return idx;
	259	}
	260
584560f1	261	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	262	const struct sr_channel_group *cg)
fa0d6afe	263	{
33c40990	264	struct dev_context *devc;
ba7dd8bb	265	struct sr_channel *ch;
33c40990 BV	266	gdouble dval;
	267	int channel, ret, ival;
	268	const char *sval;
	269	gboolean bval;
fa0d6afe BV	270
	271	if (sdi->status != SR_ST_ACTIVE)
	272	return SR_ERR_DEV_CLOSED;
	273
	274	ret = SR_OK;
33c40990	275	devc = sdi->priv;
53b4680f	276	if (!cg) {
660e398f	277	/* No channel group: global options. */
33c40990	278	switch (key) {
7a0b98b5	279	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	280	sval = g_variant_get_string(data, NULL);
	281	if ((ival = find_str(sval, channel_modes,
	282	ARRAY_SIZE(channel_modes))) == -1) {
	283	ret = SR_ERR_ARG;
	284	break;
	285	}
	286	if (devc->model->channel_modes && (1 << ival) == 0) {
	287	/* Not supported on this model. */
	288	ret = SR_ERR_ARG;
	289	}
	290	if (ival == devc->channel_mode_set)
	291	/* Nothing to do. */
	292	break;
	293	devc->channel_mode_set = ival;
ab988ecb	294	devc->config_dirty = TRUE;
33c40990	295	break;
a1eaa9e0	296	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	297	bval = g_variant_get_boolean(data);
	298	if (bval == devc->over_current_protection_set)
	299	/* Nothing to do. */
	300	break;
	301	devc->over_current_protection_set = bval;
ab988ecb	302	devc->config_dirty = TRUE;
33c40990 BV	303	break;
	304	default:
	305	return SR_ERR_NA;
	306	}
	307	} else {
660e398f UH	308	/* Channel group specified: per-channel options. */
660e398f UH	309	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	310	ch = cg->channels->data;
ba7dd8bb UH	311	channel = ch->index;
33c40990 BV	312
33c40990 BV	313	switch (key) {
7a0b98b5	314	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	315	dval = g_variant_get_double(data);
	316	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	317	ret = SR_ERR_ARG;
	318	devc->config[channel].output_voltage_max = dval;
ab988ecb	319	devc->config_dirty = TRUE;
33c40990	320	break;
7a0b98b5	321	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	322	dval = g_variant_get_double(data);
	323	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	324	ret = SR_ERR_ARG;
	325	devc->config[channel].output_current_max = dval;
ab988ecb	326	devc->config_dirty = TRUE;
33c40990	327	break;
7a0b98b5	328	case SR_CONF_ENABLED:
33c40990 BV	329	bval = g_variant_get_boolean(data);
	330	if (bval == devc->config[channel].output_enabled_set)
	331	/* Nothing to do. */
	332	break;
	333	devc->config[channel].output_enabled_set = bval;
ab988ecb	334	devc->config_dirty = TRUE;
33c40990 BV	335	break;
	336	default:
	337	ret = SR_ERR_NA;
	338	}
fa0d6afe BV	339	}
	340
	341	return ret;
	342	}
	343
584560f1	344	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	345	const struct sr_channel_group *cg)
fa0d6afe	346	{
33c40990	347	struct dev_context *devc;
ba7dd8bb	348	struct sr_channel *ch;
33c40990 BV	349	GVariant *gvar;
	350	GVariantBuilder gvb;
	351	int channel, ret, i;
	352
d6fa8ace	353	/* Always available. */
33c40990	354	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	355	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	356	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
33c40990 BV	357	return SR_OK;
	358	}
	359
d6fa8ace BV	360	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
d6fa8ace BV	361	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	362	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
d6fa8ace BV	363	return SR_OK;
	364	}
	365
e22aa878 BV	366	if (!sdi)
e22aa878 BV	367	return SR_ERR_ARG;
fa0d6afe	368
d6fa8ace	369	devc = sdi->priv;
fa0d6afe	370	ret = SR_OK;
53b4680f	371	if (!cg) {
660e398f	372	/* No channel group: global options. */
33c40990 BV	373	switch (key) {
33c40990 BV	374	case SR_CONF_DEVICE_OPTIONS:
584560f1	375	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	376	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
33c40990	377	break;
7a0b98b5	378	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	379	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	380	/* The 1-channel models. */
	381	*data = g_variant_new_strv(channel_modes, 1);
	382	} else {
	383	/* The other models support all modes. */
	384	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	385	}
	386	break;
	387	default:
	388	return SR_ERR_NA;
	389	}
	390	} else {
660e398f	391	/* Channel group specified: per-channel options. */
33c40990 BV	392	if (!sdi)
33c40990 BV	393	return SR_ERR_ARG;
660e398f	394	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	395	ch = cg->channels->data;
ba7dd8bb UH	396	channel = ch->index;
33c40990 BV	397
	398	switch (key) {
	399	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	400	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	401	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
33c40990	402	break;
7a0b98b5	403	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	404	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	405	/* Min, max, step. */
	406	for (i = 0; i < 3; i++) {
	407	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	408	g_variant_builder_add_value(&gvb, gvar);
	409	}
	410	*data = g_variant_builder_end(&gvb);
	411	break;
7a0b98b5	412	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	413	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	414	/* Min, max, step. */
	415	for (i = 0; i < 3; i++) {
	416	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	417	g_variant_builder_add_value(&gvb, gvar);
	418	}
	419	*data = g_variant_builder_end(&gvb);
	420	break;
	421	default:
	422	return SR_ERR_NA;
	423	}
fa0d6afe BV	424	}
	425
	426	return ret;
	427	}
	428
ab988ecb BV	429	static int dev_close(struct sr_dev_inst *sdi)
	430	{
	431	struct dev_context *devc;
	432
	433	devc = sdi->priv;
	434	if (devc->config_dirty)
	435	/* Some configuration changes were queued up but didn't
	436	* get sent to the device, likely because we were never
	437	* in acquisition mode. Send them out now. */
	438	send_config(sdi);
	439
	440	return std_serial_dev_close(sdi);
	441	}
	442
695dc859	443	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
fa0d6afe	444	{
33c40990 BV	445	struct dev_context *devc;
	446	struct sr_serial_dev_inst *serial;
	447	uint8_t packet[PACKET_SIZE];
	448
fa0d6afe BV	449	if (sdi->status != SR_ST_ACTIVE)
	450	return SR_ERR_DEV_CLOSED;
	451
33c40990 BV	452	devc = sdi->priv;
	453	memset(devc->packet, 0x44, PACKET_SIZE);
	454	devc->packet_size = 0;
	455
	456	devc->acquisition_running = TRUE;
	457
	458	serial = sdi->conn;
102f1239 BV	459	serial_source_add(sdi->session, serial, G_IO_IN, 50,
102f1239 BV	460	atten_pps3xxx_receive_data, (void *)sdi);
695dc859	461	std_session_send_df_header(sdi, LOG_PREFIX);
33c40990	462
ba7dd8bb	463	/* Send a "channel" configuration packet now. */
33c40990 BV	464	memset(packet, 0, PACKET_SIZE);
	465	packet[0] = 0xaa;
	466	packet[1] = 0xaa;
	467	send_packet(sdi, packet);
fa0d6afe BV	468
	469	return SR_OK;
	470	}
	471
695dc859	472	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
fa0d6afe	473	{
33c40990 BV	474	struct dev_context *devc;
33c40990 BV	475
fa0d6afe BV	476	if (sdi->status != SR_ST_ACTIVE)
	477	return SR_ERR_DEV_CLOSED;
	478
33c40990 BV	479	devc = sdi->priv;
33c40990 BV	480	devc->acquisition_running = FALSE;
fa0d6afe BV	481
	482	return SR_OK;
	483	}
	484
dd5c48a6	485	static struct sr_dev_driver atten_pps3203_driver_info = {
33c40990 BV	486	.name = "atten-pps3203",
33c40990 BV	487	.longname = "Atten PPS3203T-3S",
fa0d6afe	488	.api_version = 1,
c2fdcc25	489	.init = std_init,
700d6b64	490	.cleanup = std_cleanup,
33c40990	491	.scan = scan_3203,
c01bf34c	492	.dev_list = std_dev_list,
a6630742	493	.dev_clear = NULL,
fa0d6afe BV	494	.config_get = config_get,
	495	.config_set = config_set,
	496	.config_list = config_list,
33c40990	497	.dev_open = std_serial_dev_open,
ab988ecb	498	.dev_close = dev_close,
fa0d6afe BV	499	.dev_acquisition_start = dev_acquisition_start,
fa0d6afe BV	500	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	501	.context = NULL,
fa0d6afe	502	};
dd5c48a6	503	SR_REGISTER_DEV_DRIVER(atten_pps3203_driver_info);