[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 } },
		},
	},
};

SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;

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

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;
	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;

	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->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);
		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;
	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(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;
}

SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	.name = "atten-pps3203",
	.longname = "Atten PPS3203T-3S",
	.api_version = 1,
	.init = 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,
};
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
33c40990	78	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
fa0d6afe	79
4f840ce9	80	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
fa0d6afe	81	{
c45c32ce	82	return std_init(di, sr_ctx);
fa0d6afe BV	83	}
fa0d6afe BV	84
4f840ce9	85	static GSList scan(struct sr_dev_driver di, GSList *options, int modelid)
fa0d6afe	86	{
33c40990	87	struct sr_dev_inst *sdi;
fa0d6afe	88	struct drv_context *drvc;
33c40990 BV	89	struct dev_context *devc;
33c40990 BV	90	struct sr_config *src;
ba7dd8bb	91	struct sr_channel *ch;
40fd0264	92	struct sr_channel_group *cg;
33c40990 BV	93	struct sr_serial_dev_inst *serial;
33c40990 BV	94	GSList l, devices;
329733d9	95	const struct pps_model *model;
33c40990 BV	96	uint8_t packet[PACKET_SIZE];
33c40990 BV	97	unsigned int i;
2eb1612d	98	int delay_ms, ret;
33c40990 BV	99	const char conn, serialcomm;
33c40990 BV	100	char channel[10];
fa0d6afe BV	101
fa0d6afe BV	102	devices = NULL;
41812aca	103	drvc = di->context;
fa0d6afe BV	104	drvc->instances = NULL;
fa0d6afe BV	105
33c40990 BV	106	conn = serialcomm = NULL;
	107	for (l = options; l; l = l->next) {
	108	src = l->data;
	109	switch (src->key) {
	110	case SR_CONF_CONN:
	111	conn = g_variant_get_string(src->data, NULL);
	112	break;
	113	case SR_CONF_SERIALCOMM:
	114	serialcomm = g_variant_get_string(src->data, NULL);
	115	break;
	116	}
	117	}
	118	if (!conn)
	119	return NULL;
	120	if (!serialcomm)
	121	serialcomm = SERIALCOMM;
	122
91219afc	123	serial = sr_serial_dev_inst_new(conn, serialcomm);
33c40990	124
5305266a	125	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
33c40990	126	return NULL;
91219afc	127
33c40990 BV	128	serial_flush(serial);
33c40990 BV	129
945cfd4f	130	/* This is how the vendor software scans for hardware. */
33c40990 BV	131	memset(packet, 0, PACKET_SIZE);
	132	packet[0] = 0xaa;
	133	packet[1] = 0xaa;
2eb1612d BV	134	delay_ms = serial_timeout(serial, PACKET_SIZE);
2eb1612d BV	135	if (serial_write_blocking(serial, packet, PACKET_SIZE, delay_ms) < PACKET_SIZE) {
081c214e	136	sr_err("Unable to write while probing for hardware.");
33c40990 BV	137	return NULL;
	138	}
	139	/* The device responds with a 24-byte packet when it receives a packet.
	140	* At 9600 baud, 300ms is long enough for it to have arrived. */
	141	g_usleep(300 * 1000);
	142	memset(packet, 0, PACKET_SIZE);
	143	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	144	sr_err("Unable to read while probing for hardware: %s",
8d522801	145	sr_strerror(ret));
33c40990 BV	146	return NULL;
	147	}
	148	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	149	/* Doesn't look like an Atten PPS. */
	150	return NULL;
	151	}
	152
	153	model = NULL;
	154	for (i = 0; i < ARRAY_SIZE(models); i++) {
	155	if (models[i].modelid == modelid) {
	156	model = &models[i];
	157	break;
	158	}
	159	}
	160	if (!model) {
	161	sr_err("Unknown modelid %d", modelid);
	162	return NULL;
	163	}
	164
aac29cc1	165	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	166	sdi->status = SR_ST_INACTIVE;
	167	sdi->vendor = g_strdup("Atten");
	168	sdi->model = g_strdup(model->name);
33c40990 BV	169	sdi->driver = di;
	170	sdi->inst_type = SR_INST_SERIAL;
	171	sdi->conn = serial;
	172	for (i = 0; i < MAX_CHANNELS; i++) {
	173	snprintf(channel, 10, "CH%d", i + 1);
5e23fcab	174	ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
40fd0264 UH	175	cg = g_malloc(sizeof(struct sr_channel_group));
40fd0264 UH	176	cg->name = g_strdup(channel);
ba7dd8bb	177	cg->channels = g_slist_append(NULL, ch);
40fd0264 UH	178	cg->priv = NULL;
40fd0264 UH	179	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
33c40990 BV	180	}
	181
	182	devc = g_malloc0(sizeof(struct dev_context));
	183	devc->model = model;
	184	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
2eb1612d	185	devc->delay_ms = delay_ms;
33c40990 BV	186	sdi->priv = devc;
	187	drvc->instances = g_slist_append(drvc->instances, sdi);
	188	devices = g_slist_append(devices, sdi);
	189
	190	serial_close(serial);
	191	if (!devices)
	192	sr_serial_dev_inst_free(serial);
fa0d6afe BV	193
	194	return devices;
	195	}
	196
4f840ce9	197	static GSList scan_3203(struct sr_dev_driver di, GSList *options)
33c40990	198	{
4f840ce9	199	return scan(di, options, PPS_3203T_3S);
33c40990 BV	200	}
33c40990 BV	201
584560f1	202	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	203	const struct sr_channel_group *cg)
fa0d6afe	204	{
33c40990	205	struct dev_context *devc;
ba7dd8bb	206	struct sr_channel *ch;
33c40990 BV	207	int channel, ret;
	208
	209	if (!sdi)
	210	return SR_ERR_ARG;
fa0d6afe	211
33c40990	212	devc = sdi->priv;
fa0d6afe BV	213
fa0d6afe BV	214	ret = SR_OK;
53b4680f	215	if (!cg) {
660e398f	216	/* No channel group: global options. */
33c40990	217	switch (key) {
7a0b98b5	218	case SR_CONF_CHANNEL_CONFIG:
fe997353	219	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990	220	break;
a1eaa9e0	221	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	222	*data = g_variant_new_boolean(devc->over_current_protection);
	223	break;
	224	default:
	225	return SR_ERR_NA;
	226	}
	227	} else {
660e398f	228	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	229	ch = cg->channels->data;
ba7dd8bb UH	230	channel = ch->index;
33c40990 BV	231
33c40990 BV	232	switch (key) {
7a0b98b5	233	case SR_CONF_VOLTAGE:
33c40990 BV	234	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
33c40990 BV	235	break;
7a0b98b5	236	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	237	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
33c40990 BV	238	break;
7a0b98b5	239	case SR_CONF_CURRENT:
33c40990 BV	240	*data = g_variant_new_double(devc->config[channel].output_current_last);
33c40990 BV	241	break;
7a0b98b5	242	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	243	*data = g_variant_new_double(devc->config[channel].output_current_max);
33c40990 BV	244	break;
7a0b98b5	245	case SR_CONF_ENABLED:
33c40990 BV	246	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	247	break;
	248	default:
	249	return SR_ERR_NA;
	250	}
fa0d6afe BV	251	}
	252
	253	return ret;
	254	}
	255
33c40990 BV	256	static int find_str(const char str, const char *strings, int array_size)
	257	{
	258	int idx, i;
	259
	260	idx = -1;
	261	for (i = 0; i < array_size; i++) {
	262	if (!strcmp(str, strings[i])) {
	263	idx = i;
	264	break;
	265	}
	266	}
	267
	268	return idx;
	269	}
	270
584560f1	271	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	272	const struct sr_channel_group *cg)
fa0d6afe	273	{
33c40990	274	struct dev_context *devc;
ba7dd8bb	275	struct sr_channel *ch;
33c40990 BV	276	gdouble dval;
	277	int channel, ret, ival;
	278	const char *sval;
	279	gboolean bval;
fa0d6afe BV	280
	281	if (sdi->status != SR_ST_ACTIVE)
	282	return SR_ERR_DEV_CLOSED;
	283
	284	ret = SR_OK;
33c40990	285	devc = sdi->priv;
53b4680f	286	if (!cg) {
660e398f	287	/* No channel group: global options. */
33c40990	288	switch (key) {
7a0b98b5	289	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	290	sval = g_variant_get_string(data, NULL);
	291	if ((ival = find_str(sval, channel_modes,
	292	ARRAY_SIZE(channel_modes))) == -1) {
	293	ret = SR_ERR_ARG;
	294	break;
	295	}
	296	if (devc->model->channel_modes && (1 << ival) == 0) {
	297	/* Not supported on this model. */
	298	ret = SR_ERR_ARG;
	299	}
	300	if (ival == devc->channel_mode_set)
	301	/* Nothing to do. */
	302	break;
	303	devc->channel_mode_set = ival;
ab988ecb	304	devc->config_dirty = TRUE;
33c40990	305	break;
a1eaa9e0	306	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	307	bval = g_variant_get_boolean(data);
	308	if (bval == devc->over_current_protection_set)
	309	/* Nothing to do. */
	310	break;
	311	devc->over_current_protection_set = bval;
ab988ecb	312	devc->config_dirty = TRUE;
33c40990 BV	313	break;
	314	default:
	315	return SR_ERR_NA;
	316	}
	317	} else {
660e398f UH	318	/* Channel group specified: per-channel options. */
660e398f UH	319	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	320	ch = cg->channels->data;
ba7dd8bb UH	321	channel = ch->index;
33c40990 BV	322
33c40990 BV	323	switch (key) {
7a0b98b5	324	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	325	dval = g_variant_get_double(data);
	326	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	327	ret = SR_ERR_ARG;
	328	devc->config[channel].output_voltage_max = dval;
ab988ecb	329	devc->config_dirty = TRUE;
33c40990	330	break;
7a0b98b5	331	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	332	dval = g_variant_get_double(data);
	333	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	334	ret = SR_ERR_ARG;
	335	devc->config[channel].output_current_max = dval;
ab988ecb	336	devc->config_dirty = TRUE;
33c40990	337	break;
7a0b98b5	338	case SR_CONF_ENABLED:
33c40990 BV	339	bval = g_variant_get_boolean(data);
	340	if (bval == devc->config[channel].output_enabled_set)
	341	/* Nothing to do. */
	342	break;
	343	devc->config[channel].output_enabled_set = bval;
ab988ecb	344	devc->config_dirty = TRUE;
33c40990 BV	345	break;
	346	default:
	347	ret = SR_ERR_NA;
	348	}
fa0d6afe BV	349	}
	350
	351	return ret;
	352	}
	353
584560f1	354	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	355	const struct sr_channel_group *cg)
fa0d6afe	356	{
33c40990	357	struct dev_context *devc;
ba7dd8bb	358	struct sr_channel *ch;
33c40990 BV	359	GVariant *gvar;
	360	GVariantBuilder gvb;
	361	int channel, ret, i;
	362
d6fa8ace	363	/* Always available. */
33c40990	364	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	365	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	366	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
33c40990 BV	367	return SR_OK;
	368	}
	369
d6fa8ace BV	370	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
d6fa8ace BV	371	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	372	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
d6fa8ace BV	373	return SR_OK;
	374	}
	375
e22aa878 BV	376	if (!sdi)
e22aa878 BV	377	return SR_ERR_ARG;
fa0d6afe	378
d6fa8ace	379	devc = sdi->priv;
fa0d6afe	380	ret = SR_OK;
53b4680f	381	if (!cg) {
660e398f	382	/* No channel group: global options. */
33c40990 BV	383	switch (key) {
33c40990 BV	384	case SR_CONF_DEVICE_OPTIONS:
584560f1	385	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	386	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
33c40990	387	break;
7a0b98b5	388	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	389	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	390	/* The 1-channel models. */
	391	*data = g_variant_new_strv(channel_modes, 1);
	392	} else {
	393	/* The other models support all modes. */
	394	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	395	}
	396	break;
	397	default:
	398	return SR_ERR_NA;
	399	}
	400	} else {
660e398f	401	/* Channel group specified: per-channel options. */
33c40990 BV	402	if (!sdi)
33c40990 BV	403	return SR_ERR_ARG;
660e398f	404	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	405	ch = cg->channels->data;
ba7dd8bb UH	406	channel = ch->index;
33c40990 BV	407
	408	switch (key) {
	409	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	410	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	411	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
33c40990	412	break;
7a0b98b5	413	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	414	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	415	/* Min, max, step. */
	416	for (i = 0; i < 3; i++) {
	417	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	418	g_variant_builder_add_value(&gvb, gvar);
	419	}
	420	*data = g_variant_builder_end(&gvb);
	421	break;
7a0b98b5	422	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	423	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	424	/* Min, max, step. */
	425	for (i = 0; i < 3; i++) {
	426	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	427	g_variant_builder_add_value(&gvb, gvar);
	428	}
	429	*data = g_variant_builder_end(&gvb);
	430	break;
	431	default:
	432	return SR_ERR_NA;
	433	}
fa0d6afe BV	434	}
	435
	436	return ret;
	437	}
	438
ab988ecb BV	439	static int dev_close(struct sr_dev_inst *sdi)
	440	{
	441	struct dev_context *devc;
	442
	443	devc = sdi->priv;
	444	if (devc->config_dirty)
	445	/* Some configuration changes were queued up but didn't
	446	* get sent to the device, likely because we were never
	447	* in acquisition mode. Send them out now. */
	448	send_config(sdi);
	449
	450	return std_serial_dev_close(sdi);
	451	}
	452
695dc859	453	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
fa0d6afe	454	{
33c40990 BV	455	struct dev_context *devc;
	456	struct sr_serial_dev_inst *serial;
	457	uint8_t packet[PACKET_SIZE];
	458
fa0d6afe BV	459	if (sdi->status != SR_ST_ACTIVE)
	460	return SR_ERR_DEV_CLOSED;
	461
33c40990 BV	462	devc = sdi->priv;
	463	memset(devc->packet, 0x44, PACKET_SIZE);
	464	devc->packet_size = 0;
	465
	466	devc->acquisition_running = TRUE;
	467
	468	serial = sdi->conn;
102f1239 BV	469	serial_source_add(sdi->session, serial, G_IO_IN, 50,
102f1239 BV	470	atten_pps3xxx_receive_data, (void *)sdi);
695dc859	471	std_session_send_df_header(sdi, LOG_PREFIX);
33c40990	472
ba7dd8bb	473	/* Send a "channel" configuration packet now. */
33c40990 BV	474	memset(packet, 0, PACKET_SIZE);
	475	packet[0] = 0xaa;
	476	packet[1] = 0xaa;
	477	send_packet(sdi, packet);
fa0d6afe BV	478
	479	return SR_OK;
	480	}
	481
695dc859	482	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
fa0d6afe	483	{
33c40990 BV	484	struct dev_context *devc;
33c40990 BV	485
fa0d6afe BV	486	if (sdi->status != SR_ST_ACTIVE)
	487	return SR_ERR_DEV_CLOSED;
	488
33c40990 BV	489	devc = sdi->priv;
33c40990 BV	490	devc->acquisition_running = FALSE;
fa0d6afe BV	491
	492	return SR_OK;
	493	}
	494
33c40990 BV	495	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	496	.name = "atten-pps3203",
	497	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	498	.api_version = 1,
fa0d6afe BV	499	.init = init,
700d6b64	500	.cleanup = std_cleanup,
33c40990	501	.scan = scan_3203,
c01bf34c	502	.dev_list = std_dev_list,
a6630742	503	.dev_clear = NULL,
fa0d6afe BV	504	.config_get = config_get,
	505	.config_set = config_set,
	506	.config_list = config_list,
33c40990	507	.dev_open = std_serial_dev_open,
ab988ecb	508	.dev_close = dev_close,
fa0d6afe BV	509	.dev_acquisition_start = dev_acquisition_start,
fa0d6afe BV	510	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	511	.context = NULL,
fa0d6afe	512	};