[libsigrok.git] / hardware / atten-pps3xxx / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <string.h>
#include <errno.h>
#include "protocol.h"

/*
 * The default serial communication settings on the device are 9600
 * baud, 9 data bits. The 9th bit isn't actually used, and the vendor
 * software uses Mark parity to absorb the extra bit.
 *
 * Since 9 data bits is not a standard available in POSIX, we use two
 * stop bits to skip over the extra bit instead.
 */
#define SERIALCOMM "9600/8n2"

static const int32_t scanopts[] = {
	SR_CONF_CONN,
	SR_CONF_SERIALCOMM,
};

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

static const int32_t devopts_cg[] = {
	SR_CONF_OUTPUT_VOLTAGE,
	SR_CONF_OUTPUT_VOLTAGE_MAX,
	SR_CONF_OUTPUT_CURRENT,
	SR_CONF_OUTPUT_CURRENT_MAX,
	SR_CONF_OUTPUT_ENABLED,
};

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

static struct pps_model models[] = {
	{ PPS_3203T_3S, "PPS3203T-3S",
		CHANMODE_INDEPENDENT | CHANMODE_SERIES | CHANMODE_PARALLEL,
		3,
		{
			/* Channel 1 */
			{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
			/* Channel 2 */
			{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
			/* Channel 3 */
			{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
		},
	},
};


SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
static struct sr_dev_driver *di = &atten_pps3203_driver_info;

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

static GSList *scan(GSList *options, int modelid)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_config *src;
	struct sr_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 ret;
	const char *conn, *serialcomm;
	char channel[10];

	devices = NULL;
	drvc = di->priv;
	drvc->instances = NULL;

	conn = serialcomm = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = g_variant_get_string(src->data, NULL);
			break;
		}
	}
	if (!conn)
		return NULL;
	if (!serialcomm)
		serialcomm = SERIALCOMM;

	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
		return NULL;

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

	/* This is how the vendor software channels for hardware. */
	memset(packet, 0, PACKET_SIZE);
	packet[0] = 0xaa;
	packet[1] = 0xaa;
	if (serial_write(serial, packet, PACKET_SIZE) == -1) {
		sr_err("Unable to write while probing for hardware: %s",
				strerror(errno));
		return NULL;
	}
	/* The device responds with a 24-byte packet when it receives a packet.
	 * At 9600 baud, 300ms is long enough for it to have arrived. */
	g_usleep(300 * 1000);
	memset(packet, 0, PACKET_SIZE);
	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
		sr_err("Unable to read while probing for hardware: %s",
				strerror(errno));
		return NULL;
	}
	if (ret != PACKET_SIZE || packet[0] != 0xaa || packet[1] != 0xaa) {
		/* Doesn't look like an Atten PPS. */
		return NULL;
	}

	model = NULL;
	for (i = 0; i < ARRAY_SIZE(models); i++) {
		if (models[i].modelid == modelid) {
			model = &models[i];
			break;
		}
	}
	if (!model) {
		sr_err("Unknown modelid %d", modelid);
		return NULL;
	}

	sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
	sdi->driver = di;
	sdi->inst_type = SR_INST_SERIAL;
	sdi->conn = serial;
	for (i = 0; i < MAX_CHANNELS; i++) {
		snprintf(channel, 10, "CH%d", i + 1);
		ch = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel);
		sdi->channels = g_slist_append(sdi->channels, ch);
		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);
	sdi->priv = devc;
	drvc->instances = g_slist_append(drvc->instances, sdi);
	devices = g_slist_append(devices, sdi);

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

	return devices;
}

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

static GSList *dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static int cleanup(void)
{
	return std_dev_clear(di, NULL);
}

static int config_get(int 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:
			*data = g_variant_new_string(channel_modes[devc->channel_mode]);
			break;
		case SR_CONF_OVER_CURRENT_PROTECTION:
			*data = g_variant_new_boolean(devc->over_current_protection);
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* We only ever have one channel per 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_MAX:
			*data = g_variant_new_double(devc->config[channel].output_voltage_max);
			break;
		case SR_CONF_OUTPUT_CURRENT:
			*data = g_variant_new_double(devc->config[channel].output_current_last);
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			*data = g_variant_new_double(devc->config[channel].output_current_max);
			break;
		case SR_CONF_OUTPUT_ENABLED:
			*data = g_variant_new_boolean(devc->config[channel].output_enabled);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return ret;
}

static int find_str(const char *str, const char **strings, int array_size)
{
	int idx, i;

	idx = -1;
	for (i = 0; i < array_size; i++) {
		if (!strcmp(str, strings[i])) {
			idx = i;
			break;
		}
	}

	return idx;
}

static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_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:
			sval = g_variant_get_string(data, NULL);
			if ((ival = find_str(sval, channel_modes,
							ARRAY_SIZE(channel_modes))) == -1) {
				ret = SR_ERR_ARG;
				break;
			}
			if (devc->model->channel_modes && (1 << ival) == 0) {
				/* Not supported on this model. */
				ret = SR_ERR_ARG;
			}
			if (ival == devc->channel_mode_set)
				/* Nothing to do. */
				break;
			devc->channel_mode_set = ival;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OVER_CURRENT_PROTECTION:
			bval = g_variant_get_boolean(data);
			if (bval == devc->over_current_protection_set)
				/* Nothing to do. */
				break;
			devc->over_current_protection_set = bval;
			devc->config_dirty = TRUE;
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* 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_MAX:
			dval = g_variant_get_double(data);
			if (dval < 0 || dval > devc->model->channels[channel].voltage[1])
				ret = SR_ERR_ARG;
			devc->config[channel].output_voltage_max = dval;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			dval = g_variant_get_double(data);
			if (dval < 0 || dval > devc->model->channels[channel].current[1])
				ret = SR_ERR_ARG;
			devc->config[channel].output_current_max = dval;
			devc->config_dirty = TRUE;
			break;
		case SR_CONF_OUTPUT_ENABLED:
			bval = g_variant_get_boolean(data);
			if (bval == devc->config[channel].output_enabled_set)
				/* Nothing to do. */
				break;
			devc->config[channel].output_enabled_set = bval;
			devc->config_dirty = TRUE;
			break;
		default:
			ret = SR_ERR_NA;
		}
	}


	return ret;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	struct sr_channel *ch;
	GVariant *gvar;
	GVariantBuilder gvb;
	int channel, ret, i;

	/* Always available, even without sdi. */
	if (key == SR_CONF_SCAN_OPTIONS) {
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(int32_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_INT32,
					devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
			break;
		case SR_CONF_OUTPUT_CHANNEL:
			if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
				/* The 1-channel models. */
				*data = g_variant_new_strv(channel_modes, 1);
			} else {
				/* The other models support all modes. */
				*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
			}
			break;
		default:
			return SR_ERR_NA;
		}
	} else {
		/* 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_INT32,
					devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(int32_t));
			break;
		case SR_CONF_OUTPUT_VOLTAGE_MAX:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			/* Min, max, step. */
			for (i = 0; i < 3; i++) {
				gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
				g_variant_builder_add_value(&gvb, gvar);
			}
			*data = g_variant_builder_end(&gvb);
			break;
		case SR_CONF_OUTPUT_CURRENT_MAX:
			g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
			/* Min, max, step. */
			for (i = 0; i < 3; i++) {
				gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
				g_variant_builder_add_value(&gvb, gvar);
			}
			*data = g_variant_builder_end(&gvb);
			break;
		default:
			return SR_ERR_NA;
		}
	}

	return ret;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;
	if (devc->config_dirty)
		/* Some configuration changes were queued up but didn't
		 * get sent to the device, likely because we were never
		 * in acquisition mode. Send them out now. */
		send_config(sdi);

	return std_serial_dev_close(sdi);
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi,
		void *cb_data)
{
	struct dev_context *devc;
	struct sr_serial_dev_inst *serial;
	uint8_t packet[PACKET_SIZE];

	(void)cb_data;

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

	devc = sdi->priv;
	memset(devc->packet, 0x44, PACKET_SIZE);
	devc->packet_size = 0;

	devc->acquisition_running = TRUE;

	serial = sdi->conn;
	serial_source_add(serial, G_IO_IN, 50, atten_pps3xxx_receive_data, (void *)sdi);
	std_session_send_df_header(cb_data, LOG_PREFIX);

	/* Send a "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
e22aa878	34	static const int32_t scanopts[] = {
33c40990 BV	35	SR_CONF_CONN,
	36	SR_CONF_SERIALCOMM,
	37	};
	38
	39	static const int32_t devopts[] = {
	40	SR_CONF_POWER_SUPPLY,
	41	SR_CONF_CONTINUOUS,
33c40990 BV	42	SR_CONF_OUTPUT_CHANNEL,
	43	SR_CONF_OVER_CURRENT_PROTECTION,
	44	};
	45
40fd0264	46	static const int32_t devopts_cg[] = {
33c40990 BV	47	SR_CONF_OUTPUT_VOLTAGE,
	48	SR_CONF_OUTPUT_VOLTAGE_MAX,
	49	SR_CONF_OUTPUT_CURRENT,
	50	SR_CONF_OUTPUT_CURRENT_MAX,
	51	SR_CONF_OUTPUT_ENABLED,
	52	};
	53
	54	static const char *channel_modes[] = {
	55	"Independent",
	56	"Series",
	57	"Parallel",
	58	};
	59
	60	static struct pps_model models[] = {
	61	{ PPS_3203T_3S, "PPS3203T-3S",
	62	CHANMODE_INDEPENDENT \| CHANMODE_SERIES \| CHANMODE_PARALLEL,
	63	3,
	64	{
	65	/* Channel 1 */
	66	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	67	/* Channel 2 */
	68	{ { 0, 32, 0.01 }, { 0, 3, 0.001 } },
	69	/* Channel 3 */
	70	{ { 0, 6, 0.01 }, { 0, 3, 0.001 } },
	71	},
	72	},
	73	};
	74
	75
	76	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
	77	static struct sr_dev_driver *di = &atten_pps3203_driver_info;
fa0d6afe BV	78
	79	static int init(struct sr_context *sr_ctx)
	80	{
	81	return std_init(sr_ctx, di, LOG_PREFIX);
	82	}
	83
33c40990	84	static GSList scan(GSList options, int modelid)
fa0d6afe	85	{
33c40990	86	struct sr_dev_inst *sdi;
fa0d6afe	87	struct drv_context *drvc;
33c40990 BV	88	struct dev_context *devc;
33c40990 BV	89	struct sr_config *src;
ba7dd8bb	90	struct sr_channel *ch;
40fd0264	91	struct sr_channel_group *cg;
33c40990 BV	92	struct sr_serial_dev_inst *serial;
	93	GSList l, devices;
	94	struct pps_model *model;
	95	uint8_t packet[PACKET_SIZE];
	96	unsigned int i;
	97	int ret;
	98	const char conn, serialcomm;
	99	char channel[10];
fa0d6afe BV	100
	101	devices = NULL;
	102	drvc = di->priv;
	103	drvc->instances = NULL;
	104
33c40990 BV	105	conn = serialcomm = NULL;
	106	for (l = options; l; l = l->next) {
	107	src = l->data;
	108	switch (src->key) {
	109	case SR_CONF_CONN:
	110	conn = g_variant_get_string(src->data, NULL);
	111	break;
	112	case SR_CONF_SERIALCOMM:
	113	serialcomm = g_variant_get_string(src->data, NULL);
	114	break;
	115	}
	116	}
	117	if (!conn)
	118	return NULL;
	119	if (!serialcomm)
	120	serialcomm = SERIALCOMM;
	121
	122	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	123	return NULL;
	124
	125	if (serial_open(serial, SERIAL_RDWR \| SERIAL_NONBLOCK) != SR_OK)
	126	return NULL;
	127	serial_flush(serial);
	128
ba7dd8bb	129	/* This is how the vendor software channels for hardware. */
33c40990 BV	130	memset(packet, 0, PACKET_SIZE);
	131	packet[0] = 0xaa;
	132	packet[1] = 0xaa;
	133	if (serial_write(serial, packet, PACKET_SIZE) == -1) {
	134	sr_err("Unable to write while probing for hardware: %s",
	135	strerror(errno));
	136	return NULL;
	137	}
	138	/* The device responds with a 24-byte packet when it receives a packet.
	139	* At 9600 baud, 300ms is long enough for it to have arrived. */
	140	g_usleep(300 * 1000);
	141	memset(packet, 0, PACKET_SIZE);
	142	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	143	sr_err("Unable to read while probing for hardware: %s",
	144	strerror(errno));
	145	return NULL;
	146	}
	147	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	148	/* Doesn't look like an Atten PPS. */
	149	return NULL;
	150	}
	151
	152	model = NULL;
	153	for (i = 0; i < ARRAY_SIZE(models); i++) {
	154	if (models[i].modelid == modelid) {
	155	model = &models[i];
	156	break;
	157	}
	158	}
	159	if (!model) {
	160	sr_err("Unknown modelid %d", modelid);
	161	return NULL;
	162	}
	163
	164	sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
	165	sdi->driver = di;
	166	sdi->inst_type = SR_INST_SERIAL;
	167	sdi->conn = serial;
	168	for (i = 0; i < MAX_CHANNELS; i++) {
	169	snprintf(channel, 10, "CH%d", i + 1);
ba7dd8bb UH	170	ch = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, channel);
ba7dd8bb UH	171	sdi->channels = g_slist_append(sdi->channels, ch);
40fd0264 UH	172	cg = g_malloc(sizeof(struct sr_channel_group));
40fd0264 UH	173	cg->name = g_strdup(channel);
ba7dd8bb	174	cg->channels = g_slist_append(NULL, ch);
40fd0264 UH	175	cg->priv = NULL;
40fd0264 UH	176	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
33c40990 BV	177	}
	178
	179	devc = g_malloc0(sizeof(struct dev_context));
	180	devc->model = model;
	181	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
	182	sdi->priv = devc;
	183	drvc->instances = g_slist_append(drvc->instances, sdi);
	184	devices = g_slist_append(devices, sdi);
	185
	186	serial_close(serial);
	187	if (!devices)
	188	sr_serial_dev_inst_free(serial);
fa0d6afe BV	189
	190	return devices;
	191	}
	192
33c40990 BV	193	static GSList scan_3203(GSList options)
	194	{
	195	return scan(options, PPS_3203T_3S);
	196	}
	197
fa0d6afe BV	198	static GSList *dev_list(void)
	199	{
	200	return ((struct drv_context *)(di->priv))->instances;
	201	}
	202
fa0d6afe BV	203	static int cleanup(void)
fa0d6afe BV	204	{
a6630742	205	return std_dev_clear(di, NULL);
fa0d6afe BV	206	}
	207
	208	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	209	const struct sr_channel_group *cg)
fa0d6afe	210	{
33c40990	211	struct dev_context *devc;
ba7dd8bb	212	struct sr_channel *ch;
33c40990 BV	213	int channel, ret;
	214
	215	if (!sdi)
	216	return SR_ERR_ARG;
fa0d6afe	217
33c40990	218	devc = sdi->priv;
fa0d6afe BV	219
fa0d6afe BV	220	ret = SR_OK;
53b4680f	221	if (!cg) {
660e398f	222	/* No channel group: global options. */
33c40990 BV	223	switch (key) {
33c40990 BV	224	case SR_CONF_OUTPUT_CHANNEL:
fe997353	225	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990 BV	226	break;
	227	case SR_CONF_OVER_CURRENT_PROTECTION:
	228	*data = g_variant_new_boolean(devc->over_current_protection);
	229	break;
	230	default:
	231	return SR_ERR_NA;
	232	}
	233	} else {
660e398f	234	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	235	ch = cg->channels->data;
ba7dd8bb UH	236	channel = ch->index;
33c40990 BV	237
	238	switch (key) {
	239	case SR_CONF_OUTPUT_VOLTAGE:
	240	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
	241	break;
	242	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	243	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
	244	break;
	245	case SR_CONF_OUTPUT_CURRENT:
	246	*data = g_variant_new_double(devc->config[channel].output_current_last);
	247	break;
	248	case SR_CONF_OUTPUT_CURRENT_MAX:
	249	*data = g_variant_new_double(devc->config[channel].output_current_max);
	250	break;
	251	case SR_CONF_OUTPUT_ENABLED:
	252	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	253	break;
	254	default:
	255	return SR_ERR_NA;
	256	}
fa0d6afe BV	257	}
	258
	259	return ret;
	260	}
	261
33c40990 BV	262	static int find_str(const char str, const char *strings, int array_size)
	263	{
	264	int idx, i;
	265
	266	idx = -1;
	267	for (i = 0; i < array_size; i++) {
	268	if (!strcmp(str, strings[i])) {
	269	idx = i;
	270	break;
	271	}
	272	}
	273
	274	return idx;
	275	}
	276
fa0d6afe	277	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	278	const struct sr_channel_group *cg)
fa0d6afe	279	{
33c40990	280	struct dev_context *devc;
ba7dd8bb	281	struct sr_channel *ch;
33c40990 BV	282	gdouble dval;
	283	int channel, ret, ival;
	284	const char *sval;
	285	gboolean bval;
fa0d6afe BV	286
	287	if (sdi->status != SR_ST_ACTIVE)
	288	return SR_ERR_DEV_CLOSED;
	289
	290	ret = SR_OK;
33c40990	291	devc = sdi->priv;
53b4680f	292	if (!cg) {
660e398f	293	/* No channel group: global options. */
33c40990 BV	294	switch (key) {
	295	case SR_CONF_OUTPUT_CHANNEL:
	296	sval = g_variant_get_string(data, NULL);
	297	if ((ival = find_str(sval, channel_modes,
	298	ARRAY_SIZE(channel_modes))) == -1) {
	299	ret = SR_ERR_ARG;
	300	break;
	301	}
	302	if (devc->model->channel_modes && (1 << ival) == 0) {
	303	/* Not supported on this model. */
	304	ret = SR_ERR_ARG;
	305	}
	306	if (ival == devc->channel_mode_set)
	307	/* Nothing to do. */
	308	break;
	309	devc->channel_mode_set = ival;
ab988ecb	310	devc->config_dirty = TRUE;
33c40990 BV	311	break;
	312	case SR_CONF_OVER_CURRENT_PROTECTION:
	313	bval = g_variant_get_boolean(data);
	314	if (bval == devc->over_current_protection_set)
	315	/* Nothing to do. */
	316	break;
	317	devc->over_current_protection_set = bval;
ab988ecb	318	devc->config_dirty = TRUE;
33c40990 BV	319	break;
	320	default:
	321	return SR_ERR_NA;
	322	}
	323	} else {
660e398f UH	324	/* Channel group specified: per-channel options. */
660e398f UH	325	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	326	ch = cg->channels->data;
ba7dd8bb UH	327	channel = ch->index;
33c40990 BV	328
	329	switch (key) {
	330	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	331	dval = g_variant_get_double(data);
	332	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	333	ret = SR_ERR_ARG;
	334	devc->config[channel].output_voltage_max = dval;
ab988ecb	335	devc->config_dirty = TRUE;
33c40990 BV	336	break;
	337	case SR_CONF_OUTPUT_CURRENT_MAX:
	338	dval = g_variant_get_double(data);
	339	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	340	ret = SR_ERR_ARG;
	341	devc->config[channel].output_current_max = dval;
ab988ecb	342	devc->config_dirty = TRUE;
33c40990 BV	343	break;
	344	case SR_CONF_OUTPUT_ENABLED:
	345	bval = g_variant_get_boolean(data);
	346	if (bval == devc->config[channel].output_enabled_set)
	347	/* Nothing to do. */
	348	break;
	349	devc->config[channel].output_enabled_set = bval;
ab988ecb	350	devc->config_dirty = TRUE;
33c40990 BV	351	break;
	352	default:
	353	ret = SR_ERR_NA;
	354	}
fa0d6afe BV	355	}
fa0d6afe BV	356
33c40990	357
fa0d6afe BV	358	return ret;
	359	}
	360
	361	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	362	const struct sr_channel_group *cg)
fa0d6afe	363	{
33c40990	364	struct dev_context *devc;
ba7dd8bb	365	struct sr_channel *ch;
33c40990 BV	366	GVariant *gvar;
	367	GVariantBuilder gvb;
	368	int channel, ret, i;
	369
	370	/* Always available, even without sdi. */
	371	if (key == SR_CONF_SCAN_OPTIONS) {
	372	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
e22aa878	373	scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
33c40990 BV	374	return SR_OK;
	375	}
	376
e22aa878 BV	377	if (!sdi)
e22aa878 BV	378	return SR_ERR_ARG;
33c40990	379	devc = sdi->priv;
fa0d6afe BV	380
fa0d6afe BV	381	ret = SR_OK;
53b4680f	382	if (!cg) {
660e398f	383	/* No channel group: global options. */
33c40990 BV	384	switch (key) {
	385	case SR_CONF_DEVICE_OPTIONS:
	386	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
e22aa878	387	devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
33c40990 BV	388	break;
	389	case SR_CONF_OUTPUT_CHANNEL:
	390	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	391	/* The 1-channel models. */
	392	*data = g_variant_new_strv(channel_modes, 1);
	393	} else {
	394	/* The other models support all modes. */
	395	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	396	}
	397	break;
	398	default:
	399	return SR_ERR_NA;
	400	}
	401	} else {
660e398f	402	/* Channel group specified: per-channel options. */
33c40990 BV	403	if (!sdi)
33c40990 BV	404	return SR_ERR_ARG;
660e398f	405	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	406	ch = cg->channels->data;
ba7dd8bb UH	407	channel = ch->index;
33c40990 BV	408
	409	switch (key) {
	410	case SR_CONF_DEVICE_OPTIONS:
	411	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
40fd0264	412	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(int32_t));
33c40990 BV	413	break;
	414	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	415	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	416	/* Min, max, step. */
	417	for (i = 0; i < 3; i++) {
	418	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	419	g_variant_builder_add_value(&gvb, gvar);
	420	}
	421	*data = g_variant_builder_end(&gvb);
	422	break;
	423	case SR_CONF_OUTPUT_CURRENT_MAX:
	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].current[i]);
	428	g_variant_builder_add_value(&gvb, gvar);
	429	}
	430	*data = g_variant_builder_end(&gvb);
	431	break;
	432	default:
	433	return SR_ERR_NA;
	434	}
fa0d6afe BV	435	}
	436
	437	return ret;
	438	}
	439
ab988ecb BV	440	static int dev_close(struct sr_dev_inst *sdi)
	441	{
	442	struct dev_context *devc;
	443
	444	devc = sdi->priv;
	445	if (devc->config_dirty)
	446	/* Some configuration changes were queued up but didn't
	447	* get sent to the device, likely because we were never
	448	* in acquisition mode. Send them out now. */
	449	send_config(sdi);
	450
	451	return std_serial_dev_close(sdi);
	452	}
	453
fa0d6afe	454	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	455	void *cb_data)
fa0d6afe	456	{
33c40990 BV	457	struct dev_context *devc;
	458	struct sr_serial_dev_inst *serial;
	459	uint8_t packet[PACKET_SIZE];
	460
fa0d6afe BV	461	(void)cb_data;
	462
	463	if (sdi->status != SR_ST_ACTIVE)
	464	return SR_ERR_DEV_CLOSED;
	465
33c40990 BV	466	devc = sdi->priv;
	467	memset(devc->packet, 0x44, PACKET_SIZE);
	468	devc->packet_size = 0;
	469
	470	devc->acquisition_running = TRUE;
	471
	472	serial = sdi->conn;
	473	serial_source_add(serial, G_IO_IN, 50, atten_pps3xxx_receive_data, (void *)sdi);
	474	std_session_send_df_header(cb_data, LOG_PREFIX);
	475
ba7dd8bb	476	/* Send a "channel" configuration packet now. */
33c40990 BV	477	memset(packet, 0, PACKET_SIZE);
	478	packet[0] = 0xaa;
	479	packet[1] = 0xaa;
	480	send_packet(sdi, packet);
fa0d6afe BV	481
	482	return SR_OK;
	483	}
	484
	485	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	486	{
33c40990 BV	487	struct dev_context *devc;
33c40990 BV	488
fa0d6afe BV	489	(void)cb_data;
	490
	491	if (sdi->status != SR_ST_ACTIVE)
	492	return SR_ERR_DEV_CLOSED;
	493
33c40990 BV	494	devc = sdi->priv;
33c40990 BV	495	devc->acquisition_running = FALSE;
fa0d6afe BV	496
	497	return SR_OK;
	498	}
	499
33c40990 BV	500	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	501	.name = "atten-pps3203",
	502	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	503	.api_version = 1,
	504	.init = init,
	505	.cleanup = cleanup,
33c40990	506	.scan = scan_3203,
fa0d6afe	507	.dev_list = dev_list,
a6630742	508	.dev_clear = NULL,
fa0d6afe BV	509	.config_get = config_get,
	510	.config_set = config_set,
	511	.config_list = config_list,
33c40990	512	.dev_open = std_serial_dev_open,
ab988ecb	513	.dev_close = dev_close,
fa0d6afe BV	514	.dev_acquisition_start = dev_acquisition_start,
	515	.dev_acquisition_stop = dev_acquisition_stop,
	516	.priv = NULL,
	517	};