[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 <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 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_SET,
	SR_CONF_OUTPUT_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_OUTPUT_VOLTAGE | SR_CONF_GET,
	SR_CONF_OUTPUT_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_OUTPUT_CURRENT | SR_CONF_GET,
	SR_CONF_OUTPUT_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_OUTPUT_ENABLED | SR_CONF_GET | SR_CONF_SET,
};

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

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;
	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->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;

	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",
				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 = 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 GSList *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static int cleanup(const struct sr_dev_driver *di)
{
	return std_dev_clear(di, NULL);
}

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_OUTPUT_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_OUTPUT_VOLTAGE:
			*data = g_variant_new_double(devc->config[channel].output_voltage_last);
			break;
		case SR_CONF_OUTPUT_VOLTAGE_TARGET:
			*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_LIMIT:
			*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(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_OUTPUT_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_OUTPUT_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_OUTPUT_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_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(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_OUTPUT_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_OUTPUT_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_OUTPUT_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,
		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(sdi->session, serial, G_IO_IN, 50,
			atten_pps3xxx_receive_data, (void *)sdi);
	std_session_send_df_header(cb_data, 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, 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 = 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,
	.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
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 BV	43	static const uint32_t devopts[] = {
1f889afd BV	44	SR_CONF_CONTINUOUS \| SR_CONF_SET,
5827f61b BV	45	SR_CONF_OUTPUT_CHANNEL_CONFIG \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5827f61b BV	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[] = {
5827f61b	50	SR_CONF_OUTPUT_VOLTAGE \| SR_CONF_GET,
ca95e90f	51	SR_CONF_OUTPUT_VOLTAGE_TARGET \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5827f61b	52	SR_CONF_OUTPUT_CURRENT \| SR_CONF_GET,
ca95e90f	53	SR_CONF_OUTPUT_CURRENT_LIMIT \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5827f61b	54	SR_CONF_OUTPUT_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
	63	static struct pps_model models[] = {
	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
	78
	79	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
fa0d6afe	80
4f840ce9	81	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
fa0d6afe BV	82	{
	83	return std_init(sr_ctx, di, LOG_PREFIX);
	84	}
	85
4f840ce9	86	static GSList scan(struct sr_dev_driver di, GSList *options, int modelid)
fa0d6afe	87	{
33c40990	88	struct sr_dev_inst *sdi;
fa0d6afe	89	struct drv_context *drvc;
33c40990 BV	90	struct dev_context *devc;
33c40990 BV	91	struct sr_config *src;
ba7dd8bb	92	struct sr_channel *ch;
40fd0264	93	struct sr_channel_group *cg;
33c40990 BV	94	struct sr_serial_dev_inst *serial;
	95	GSList l, devices;
	96	struct pps_model *model;
	97	uint8_t packet[PACKET_SIZE];
	98	unsigned int i;
2eb1612d	99	int delay_ms, ret;
33c40990 BV	100	const char conn, serialcomm;
33c40990 BV	101	char channel[10];
fa0d6afe BV	102
	103	devices = NULL;
	104	drvc = di->priv;
	105	drvc->instances = NULL;
	106
33c40990 BV	107	conn = serialcomm = NULL;
	108	for (l = options; l; l = l->next) {
	109	src = l->data;
	110	switch (src->key) {
	111	case SR_CONF_CONN:
	112	conn = g_variant_get_string(src->data, NULL);
	113	break;
	114	case SR_CONF_SERIALCOMM:
	115	serialcomm = g_variant_get_string(src->data, NULL);
	116	break;
	117	}
	118	}
	119	if (!conn)
	120	return NULL;
	121	if (!serialcomm)
	122	serialcomm = SERIALCOMM;
	123
91219afc	124	serial = sr_serial_dev_inst_new(conn, serialcomm);
33c40990	125
5305266a	126	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
33c40990	127	return NULL;
91219afc	128
33c40990 BV	129	serial_flush(serial);
33c40990 BV	130
945cfd4f	131	/* This is how the vendor software scans for hardware. */
33c40990 BV	132	memset(packet, 0, PACKET_SIZE);
	133	packet[0] = 0xaa;
	134	packet[1] = 0xaa;
2eb1612d BV	135	delay_ms = serial_timeout(serial, PACKET_SIZE);
2eb1612d BV	136	if (serial_write_blocking(serial, packet, PACKET_SIZE, delay_ms) < PACKET_SIZE) {
081c214e	137	sr_err("Unable to write while probing for hardware.");
33c40990 BV	138	return NULL;
	139	}
	140	/* The device responds with a 24-byte packet when it receives a packet.
	141	* At 9600 baud, 300ms is long enough for it to have arrived. */
	142	g_usleep(300 * 1000);
	143	memset(packet, 0, PACKET_SIZE);
	144	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	145	sr_err("Unable to read while probing for hardware: %s",
	146	strerror(errno));
	147	return NULL;
	148	}
	149	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	150	/* Doesn't look like an Atten PPS. */
	151	return NULL;
	152	}
	153
	154	model = NULL;
	155	for (i = 0; i < ARRAY_SIZE(models); i++) {
	156	if (models[i].modelid == modelid) {
	157	model = &models[i];
	158	break;
	159	}
	160	}
	161	if (!model) {
	162	sr_err("Unknown modelid %d", modelid);
	163	return NULL;
	164	}
	165
aac29cc1	166	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	167	sdi->status = SR_ST_INACTIVE;
	168	sdi->vendor = g_strdup("Atten");
	169	sdi->model = g_strdup(model->name);
33c40990 BV	170	sdi->driver = di;
	171	sdi->inst_type = SR_INST_SERIAL;
	172	sdi->conn = serial;
	173	for (i = 0; i < MAX_CHANNELS; i++) {
	174	snprintf(channel, 10, "CH%d", i + 1);
5e23fcab	175	ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
40fd0264 UH	176	cg = g_malloc(sizeof(struct sr_channel_group));
40fd0264 UH	177	cg->name = g_strdup(channel);
ba7dd8bb	178	cg->channels = g_slist_append(NULL, ch);
40fd0264 UH	179	cg->priv = NULL;
40fd0264 UH	180	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
33c40990 BV	181	}
	182
	183	devc = g_malloc0(sizeof(struct dev_context));
	184	devc->model = model;
	185	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
2eb1612d	186	devc->delay_ms = delay_ms;
33c40990 BV	187	sdi->priv = devc;
	188	drvc->instances = g_slist_append(drvc->instances, sdi);
	189	devices = g_slist_append(devices, sdi);
	190
	191	serial_close(serial);
	192	if (!devices)
	193	sr_serial_dev_inst_free(serial);
fa0d6afe BV	194
	195	return devices;
	196	}
	197
4f840ce9	198	static GSList scan_3203(struct sr_dev_driver di, GSList *options)
33c40990	199	{
4f840ce9	200	return scan(di, options, PPS_3203T_3S);
33c40990 BV	201	}
33c40990 BV	202
4f840ce9	203	static GSList dev_list(const struct sr_dev_driver di)
fa0d6afe BV	204	{
	205	return ((struct drv_context *)(di->priv))->instances;
	206	}
	207
4f840ce9	208	static int cleanup(const struct sr_dev_driver *di)
fa0d6afe	209	{
a6630742	210	return std_dev_clear(di, NULL);
fa0d6afe BV	211	}
fa0d6afe BV	212
584560f1	213	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	214	const struct sr_channel_group *cg)
fa0d6afe	215	{
33c40990	216	struct dev_context *devc;
ba7dd8bb	217	struct sr_channel *ch;
33c40990 BV	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;
53b4680f	226	if (!cg) {
660e398f	227	/* No channel group: global options. */
33c40990	228	switch (key) {
a1eaa9e0	229	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
fe997353	230	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990	231	break;
a1eaa9e0	232	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	233	*data = g_variant_new_boolean(devc->over_current_protection);
	234	break;
	235	default:
	236	return SR_ERR_NA;
	237	}
	238	} else {
660e398f	239	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	240	ch = cg->channels->data;
ba7dd8bb UH	241	channel = ch->index;
33c40990 BV	242
	243	switch (key) {
	244	case SR_CONF_OUTPUT_VOLTAGE:
	245	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
	246	break;
ca95e90f	247	case SR_CONF_OUTPUT_VOLTAGE_TARGET:
33c40990 BV	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;
ca95e90f	253	case SR_CONF_OUTPUT_CURRENT_LIMIT:
33c40990 BV	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
584560f1	282	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	283	const struct sr_channel_group *cg)
fa0d6afe	284	{
33c40990	285	struct dev_context *devc;
ba7dd8bb	286	struct sr_channel *ch;
33c40990 BV	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	296	devc = sdi->priv;
53b4680f	297	if (!cg) {
660e398f	298	/* No channel group: global options. */
33c40990	299	switch (key) {
a1eaa9e0	300	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
33c40990 BV	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	316	break;
a1eaa9e0	317	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	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 {
660e398f UH	329	/* Channel group specified: per-channel options. */
660e398f UH	330	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	331	ch = cg->channels->data;
ba7dd8bb UH	332	channel = ch->index;
33c40990 BV	333
33c40990 BV	334	switch (key) {
ca95e90f	335	case SR_CONF_OUTPUT_VOLTAGE_TARGET:
33c40990 BV	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	341	break;
ca95e90f	342	case SR_CONF_OUTPUT_CURRENT_LIMIT:
33c40990 BV	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
584560f1	366	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	367	const struct sr_channel_group *cg)
fa0d6afe	368	{
33c40990	369	struct dev_context *devc;
ba7dd8bb	370	struct sr_channel *ch;
33c40990 BV	371	GVariant *gvar;
	372	GVariantBuilder gvb;
	373	int channel, ret, i;
	374
d6fa8ace	375	/* Always available. */
33c40990	376	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	377	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	378	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
33c40990 BV	379	return SR_OK;
	380	}
	381
d6fa8ace BV	382	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
d6fa8ace BV	383	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	384	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
d6fa8ace BV	385	return SR_OK;
	386	}
	387
e22aa878 BV	388	if (!sdi)
e22aa878 BV	389	return SR_ERR_ARG;
fa0d6afe	390
d6fa8ace	391	devc = sdi->priv;
fa0d6afe	392	ret = SR_OK;
53b4680f	393	if (!cg) {
660e398f	394	/* No channel group: global options. */
33c40990 BV	395	switch (key) {
33c40990 BV	396	case SR_CONF_DEVICE_OPTIONS:
584560f1	397	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	398	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
33c40990	399	break;
a1eaa9e0	400	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
33c40990 BV	401	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	402	/* The 1-channel models. */
	403	*data = g_variant_new_strv(channel_modes, 1);
	404	} else {
	405	/* The other models support all modes. */
	406	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	407	}
	408	break;
	409	default:
	410	return SR_ERR_NA;
	411	}
	412	} else {
660e398f	413	/* Channel group specified: per-channel options. */
33c40990 BV	414	if (!sdi)
33c40990 BV	415	return SR_ERR_ARG;
660e398f	416	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	417	ch = cg->channels->data;
ba7dd8bb UH	418	channel = ch->index;
33c40990 BV	419
	420	switch (key) {
	421	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	422	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	423	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
33c40990	424	break;
ca95e90f	425	case SR_CONF_OUTPUT_VOLTAGE_TARGET:
33c40990 BV	426	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	427	/* Min, max, step. */
	428	for (i = 0; i < 3; i++) {
	429	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	430	g_variant_builder_add_value(&gvb, gvar);
	431	}
	432	*data = g_variant_builder_end(&gvb);
	433	break;
ca95e90f	434	case SR_CONF_OUTPUT_CURRENT_LIMIT:
33c40990 BV	435	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	436	/* Min, max, step. */
	437	for (i = 0; i < 3; i++) {
	438	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	439	g_variant_builder_add_value(&gvb, gvar);
	440	}
	441	*data = g_variant_builder_end(&gvb);
	442	break;
	443	default:
	444	return SR_ERR_NA;
	445	}
fa0d6afe BV	446	}
	447
	448	return ret;
	449	}
	450
ab988ecb BV	451	static int dev_close(struct sr_dev_inst *sdi)
	452	{
	453	struct dev_context *devc;
	454
	455	devc = sdi->priv;
	456	if (devc->config_dirty)
	457	/* Some configuration changes were queued up but didn't
	458	* get sent to the device, likely because we were never
	459	* in acquisition mode. Send them out now. */
	460	send_config(sdi);
	461
	462	return std_serial_dev_close(sdi);
	463	}
	464
fa0d6afe	465	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	466	void *cb_data)
fa0d6afe	467	{
33c40990 BV	468	struct dev_context *devc;
	469	struct sr_serial_dev_inst *serial;
	470	uint8_t packet[PACKET_SIZE];
	471
fa0d6afe BV	472	(void)cb_data;
	473
	474	if (sdi->status != SR_ST_ACTIVE)
	475	return SR_ERR_DEV_CLOSED;
	476
33c40990 BV	477	devc = sdi->priv;
	478	memset(devc->packet, 0x44, PACKET_SIZE);
	479	devc->packet_size = 0;
	480
	481	devc->acquisition_running = TRUE;
	482
	483	serial = sdi->conn;
102f1239 BV	484	serial_source_add(sdi->session, serial, G_IO_IN, 50,
102f1239 BV	485	atten_pps3xxx_receive_data, (void *)sdi);
33c40990 BV	486	std_session_send_df_header(cb_data, LOG_PREFIX);
33c40990 BV	487
ba7dd8bb	488	/* Send a "channel" configuration packet now. */
33c40990 BV	489	memset(packet, 0, PACKET_SIZE);
	490	packet[0] = 0xaa;
	491	packet[1] = 0xaa;
	492	send_packet(sdi, packet);
fa0d6afe BV	493
	494	return SR_OK;
	495	}
	496
	497	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	498	{
33c40990 BV	499	struct dev_context *devc;
33c40990 BV	500
fa0d6afe BV	501	(void)cb_data;
	502
	503	if (sdi->status != SR_ST_ACTIVE)
	504	return SR_ERR_DEV_CLOSED;
	505
33c40990 BV	506	devc = sdi->priv;
33c40990 BV	507	devc->acquisition_running = FALSE;
fa0d6afe BV	508
	509	return SR_OK;
	510	}
	511
33c40990 BV	512	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	513	.name = "atten-pps3203",
	514	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	515	.api_version = 1,
	516	.init = init,
	517	.cleanup = cleanup,
33c40990	518	.scan = scan_3203,
fa0d6afe	519	.dev_list = dev_list,
a6630742	520	.dev_clear = NULL,
fa0d6afe BV	521	.config_get = config_get,
	522	.config_set = config_set,
	523	.config_list = config_list,
33c40990	524	.dev_open = std_serial_dev_open,
ab988ecb	525	.dev_close = dev_close,
fa0d6afe BV	526	.dev_acquisition_start = dev_acquisition_start,
	527	.dev_acquisition_stop = dev_acquisition_stop,
	528	.priv = NULL,
	529	};