[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_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(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;
	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",
				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->context))->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_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,
		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,
	.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
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,
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 BV	81	{
	82	return std_init(sr_ctx, di, LOG_PREFIX);
	83	}
	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",
	145	strerror(errno));
	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
4f840ce9	202	static GSList dev_list(const struct sr_dev_driver di)
fa0d6afe	203	{
41812aca	204	return ((struct drv_context *)(di->context))->instances;
fa0d6afe BV	205	}
fa0d6afe BV	206
4f840ce9	207	static int cleanup(const struct sr_dev_driver *di)
fa0d6afe	208	{
a6630742	209	return std_dev_clear(di, NULL);
fa0d6afe BV	210	}
fa0d6afe BV	211
584560f1	212	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	213	const struct sr_channel_group *cg)
fa0d6afe	214	{
33c40990	215	struct dev_context *devc;
ba7dd8bb	216	struct sr_channel *ch;
33c40990 BV	217	int channel, ret;
	218
	219	if (!sdi)
	220	return SR_ERR_ARG;
fa0d6afe	221
33c40990	222	devc = sdi->priv;
fa0d6afe BV	223
fa0d6afe BV	224	ret = SR_OK;
53b4680f	225	if (!cg) {
660e398f	226	/* No channel group: global options. */
33c40990	227	switch (key) {
7a0b98b5	228	case SR_CONF_CHANNEL_CONFIG:
fe997353	229	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990	230	break;
a1eaa9e0	231	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	232	*data = g_variant_new_boolean(devc->over_current_protection);
	233	break;
	234	default:
	235	return SR_ERR_NA;
	236	}
	237	} else {
660e398f	238	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	239	ch = cg->channels->data;
ba7dd8bb UH	240	channel = ch->index;
33c40990 BV	241
33c40990 BV	242	switch (key) {
7a0b98b5	243	case SR_CONF_VOLTAGE:
33c40990 BV	244	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
33c40990 BV	245	break;
7a0b98b5	246	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	247	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
33c40990 BV	248	break;
7a0b98b5	249	case SR_CONF_CURRENT:
33c40990 BV	250	*data = g_variant_new_double(devc->config[channel].output_current_last);
33c40990 BV	251	break;
7a0b98b5	252	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	253	*data = g_variant_new_double(devc->config[channel].output_current_max);
33c40990 BV	254	break;
7a0b98b5	255	case SR_CONF_ENABLED:
33c40990 BV	256	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	257	break;
	258	default:
	259	return SR_ERR_NA;
	260	}
fa0d6afe BV	261	}
	262
	263	return ret;
	264	}
	265
33c40990 BV	266	static int find_str(const char str, const char *strings, int array_size)
	267	{
	268	int idx, i;
	269
	270	idx = -1;
	271	for (i = 0; i < array_size; i++) {
	272	if (!strcmp(str, strings[i])) {
	273	idx = i;
	274	break;
	275	}
	276	}
	277
	278	return idx;
	279	}
	280
584560f1	281	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	282	const struct sr_channel_group *cg)
fa0d6afe	283	{
33c40990	284	struct dev_context *devc;
ba7dd8bb	285	struct sr_channel *ch;
33c40990 BV	286	gdouble dval;
	287	int channel, ret, ival;
	288	const char *sval;
	289	gboolean bval;
fa0d6afe BV	290
	291	if (sdi->status != SR_ST_ACTIVE)
	292	return SR_ERR_DEV_CLOSED;
	293
	294	ret = SR_OK;
33c40990	295	devc = sdi->priv;
53b4680f	296	if (!cg) {
660e398f	297	/* No channel group: global options. */
33c40990	298	switch (key) {
7a0b98b5	299	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	300	sval = g_variant_get_string(data, NULL);
	301	if ((ival = find_str(sval, channel_modes,
	302	ARRAY_SIZE(channel_modes))) == -1) {
	303	ret = SR_ERR_ARG;
	304	break;
	305	}
	306	if (devc->model->channel_modes && (1 << ival) == 0) {
	307	/* Not supported on this model. */
	308	ret = SR_ERR_ARG;
	309	}
	310	if (ival == devc->channel_mode_set)
	311	/* Nothing to do. */
	312	break;
	313	devc->channel_mode_set = ival;
ab988ecb	314	devc->config_dirty = TRUE;
33c40990	315	break;
a1eaa9e0	316	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	317	bval = g_variant_get_boolean(data);
	318	if (bval == devc->over_current_protection_set)
	319	/* Nothing to do. */
	320	break;
	321	devc->over_current_protection_set = bval;
ab988ecb	322	devc->config_dirty = TRUE;
33c40990 BV	323	break;
	324	default:
	325	return SR_ERR_NA;
	326	}
	327	} else {
660e398f UH	328	/* Channel group specified: per-channel options. */
660e398f UH	329	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	330	ch = cg->channels->data;
ba7dd8bb UH	331	channel = ch->index;
33c40990 BV	332
33c40990 BV	333	switch (key) {
7a0b98b5	334	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	335	dval = g_variant_get_double(data);
	336	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	337	ret = SR_ERR_ARG;
	338	devc->config[channel].output_voltage_max = dval;
ab988ecb	339	devc->config_dirty = TRUE;
33c40990	340	break;
7a0b98b5	341	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	342	dval = g_variant_get_double(data);
	343	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	344	ret = SR_ERR_ARG;
	345	devc->config[channel].output_current_max = dval;
ab988ecb	346	devc->config_dirty = TRUE;
33c40990	347	break;
7a0b98b5	348	case SR_CONF_ENABLED:
33c40990 BV	349	bval = g_variant_get_boolean(data);
	350	if (bval == devc->config[channel].output_enabled_set)
	351	/* Nothing to do. */
	352	break;
	353	devc->config[channel].output_enabled_set = bval;
ab988ecb	354	devc->config_dirty = TRUE;
33c40990 BV	355	break;
	356	default:
	357	ret = SR_ERR_NA;
	358	}
fa0d6afe BV	359	}
	360
	361	return ret;
	362	}
	363
584560f1	364	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	365	const struct sr_channel_group *cg)
fa0d6afe	366	{
33c40990	367	struct dev_context *devc;
ba7dd8bb	368	struct sr_channel *ch;
33c40990 BV	369	GVariant *gvar;
	370	GVariantBuilder gvb;
	371	int channel, ret, i;
	372
d6fa8ace	373	/* Always available. */
33c40990	374	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	375	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	376	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
33c40990 BV	377	return SR_OK;
	378	}
	379
d6fa8ace BV	380	if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
d6fa8ace BV	381	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	382	drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
d6fa8ace BV	383	return SR_OK;
	384	}
	385
e22aa878 BV	386	if (!sdi)
e22aa878 BV	387	return SR_ERR_ARG;
fa0d6afe	388
d6fa8ace	389	devc = sdi->priv;
fa0d6afe	390	ret = SR_OK;
53b4680f	391	if (!cg) {
660e398f	392	/* No channel group: global options. */
33c40990 BV	393	switch (key) {
33c40990 BV	394	case SR_CONF_DEVICE_OPTIONS:
584560f1	395	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
1f889afd	396	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
33c40990	397	break;
7a0b98b5	398	case SR_CONF_CHANNEL_CONFIG:
33c40990 BV	399	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	400	/* The 1-channel models. */
	401	*data = g_variant_new_strv(channel_modes, 1);
	402	} else {
	403	/* The other models support all modes. */
	404	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	405	}
	406	break;
	407	default:
	408	return SR_ERR_NA;
	409	}
	410	} else {
660e398f	411	/* Channel group specified: per-channel options. */
33c40990 BV	412	if (!sdi)
33c40990 BV	413	return SR_ERR_ARG;
660e398f	414	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	415	ch = cg->channels->data;
ba7dd8bb UH	416	channel = ch->index;
33c40990 BV	417
	418	switch (key) {
	419	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	420	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	421	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
33c40990	422	break;
7a0b98b5	423	case SR_CONF_VOLTAGE_TARGET:
33c40990 BV	424	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	425	/* Min, max, step. */
	426	for (i = 0; i < 3; i++) {
	427	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	428	g_variant_builder_add_value(&gvb, gvar);
	429	}
	430	*data = g_variant_builder_end(&gvb);
	431	break;
7a0b98b5	432	case SR_CONF_CURRENT_LIMIT:
33c40990 BV	433	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	434	/* Min, max, step. */
	435	for (i = 0; i < 3; i++) {
	436	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	437	g_variant_builder_add_value(&gvb, gvar);
	438	}
	439	*data = g_variant_builder_end(&gvb);
	440	break;
	441	default:
	442	return SR_ERR_NA;
	443	}
fa0d6afe BV	444	}
	445
	446	return ret;
	447	}
	448
ab988ecb BV	449	static int dev_close(struct sr_dev_inst *sdi)
	450	{
	451	struct dev_context *devc;
	452
	453	devc = sdi->priv;
	454	if (devc->config_dirty)
	455	/* Some configuration changes were queued up but didn't
	456	* get sent to the device, likely because we were never
	457	* in acquisition mode. Send them out now. */
	458	send_config(sdi);
	459
	460	return std_serial_dev_close(sdi);
	461	}
	462
fa0d6afe	463	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	464	void *cb_data)
fa0d6afe	465	{
33c40990 BV	466	struct dev_context *devc;
	467	struct sr_serial_dev_inst *serial;
	468	uint8_t packet[PACKET_SIZE];
	469
fa0d6afe BV	470	(void)cb_data;
	471
	472	if (sdi->status != SR_ST_ACTIVE)
	473	return SR_ERR_DEV_CLOSED;
	474
33c40990 BV	475	devc = sdi->priv;
	476	memset(devc->packet, 0x44, PACKET_SIZE);
	477	devc->packet_size = 0;
	478
	479	devc->acquisition_running = TRUE;
	480
	481	serial = sdi->conn;
102f1239 BV	482	serial_source_add(sdi->session, serial, G_IO_IN, 50,
102f1239 BV	483	atten_pps3xxx_receive_data, (void *)sdi);
33c40990 BV	484	std_session_send_df_header(cb_data, LOG_PREFIX);
33c40990 BV	485
ba7dd8bb	486	/* Send a "channel" configuration packet now. */
33c40990 BV	487	memset(packet, 0, PACKET_SIZE);
	488	packet[0] = 0xaa;
	489	packet[1] = 0xaa;
	490	send_packet(sdi, packet);
fa0d6afe BV	491
	492	return SR_OK;
	493	}
	494
	495	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	496	{
33c40990 BV	497	struct dev_context *devc;
33c40990 BV	498
fa0d6afe BV	499	(void)cb_data;
	500
	501	if (sdi->status != SR_ST_ACTIVE)
	502	return SR_ERR_DEV_CLOSED;
	503
33c40990 BV	504	devc = sdi->priv;
33c40990 BV	505	devc->acquisition_running = FALSE;
fa0d6afe BV	506
	507	return SR_OK;
	508	}
	509
33c40990 BV	510	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	511	.name = "atten-pps3203",
	512	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	513	.api_version = 1,
	514	.init = init,
	515	.cleanup = cleanup,
33c40990	516	.scan = scan_3203,
fa0d6afe	517	.dev_list = dev_list,
a6630742	518	.dev_clear = NULL,
fa0d6afe BV	519	.config_get = config_get,
	520	.config_set = config_set,
	521	.config_list = config_list,
33c40990	522	.dev_open = std_serial_dev_open,
ab988ecb	523	.dev_close = dev_close,
fa0d6afe BV	524	.dev_acquisition_start = dev_acquisition_start,
fa0d6afe BV	525	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	526	.context = NULL,
fa0d6afe	527	};