[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 devopts[] = {
	SR_CONF_POWER_SUPPLY,
	SR_CONF_CONTINUOUS,
	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_MAX | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_OUTPUT_CURRENT | SR_CONF_GET,
	SR_CONF_OUTPUT_CURRENT_MAX | 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 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;
	float byte_delay_ms;
	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) != SR_OK)
		return NULL;
	serial_flush(serial);

	/* How long it takes for a byte to transfer over the serial port. */
	if (sp_get_port_transport(serial->data) == SP_TRANSPORT_NATIVE)
		/* 11 bits at 9600 bps. */
		byte_delay_ms = 1.15;
	else
		/* Emulated serial over USB or bluetooth is just enqueueing. */
		byte_delay_ms = 0;

	/* This is how the vendor software scans for hardware. */
	memset(packet, 0, PACKET_SIZE);
	packet[0] = 0xaa;
	packet[1] = 0xaa;
	if (serial_write_blocking(serial, packet, PACKET_SIZE,
			byte_delay_ms * PACKET_SIZE + 1) < 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 = sr_dev_inst_new(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_channel_new(i, SR_CHANNEL_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);
	devc->byte_delay_ms = byte_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(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(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_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(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_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(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, even without sdi. */
	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 (!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_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(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
584560f1	39	static const uint32_t devopts[] = {
33c40990 BV	40	SR_CONF_POWER_SUPPLY,
33c40990 BV	41	SR_CONF_CONTINUOUS,
5827f61b BV	42	SR_CONF_OUTPUT_CHANNEL_CONFIG \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
5827f61b BV	43	SR_CONF_OVER_CURRENT_PROTECTION_ENABLED \| SR_CONF_GET \| SR_CONF_SET,
33c40990 BV	44	};
33c40990 BV	45
584560f1	46	static const uint32_t devopts_cg[] = {
5827f61b BV	47	SR_CONF_OUTPUT_VOLTAGE \| SR_CONF_GET,
	48	SR_CONF_OUTPUT_VOLTAGE_MAX \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	49	SR_CONF_OUTPUT_CURRENT \| SR_CONF_GET,
	50	SR_CONF_OUTPUT_CURRENT_MAX \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	51	SR_CONF_OUTPUT_ENABLED \| SR_CONF_GET \| SR_CONF_SET,
33c40990 BV	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;
945cfd4f	95	float byte_delay_ms;
33c40990 BV	96	uint8_t packet[PACKET_SIZE];
	97	unsigned int i;
	98	int ret;
	99	const char conn, serialcomm;
	100	char channel[10];
fa0d6afe BV	101
	102	devices = NULL;
	103	drvc = di->priv;
	104	drvc->instances = NULL;
	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
	123	if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
	124	return NULL;
	125
5305266a	126	if (serial_open(serial, SERIAL_RDWR) != SR_OK)
33c40990 BV	127	return NULL;
	128	serial_flush(serial);
	129
945cfd4f BV	130	/* How long it takes for a byte to transfer over the serial port. */
	131	if (sp_get_port_transport(serial->data) == SP_TRANSPORT_NATIVE)
	132	/* 11 bits at 9600 bps. */
	133	byte_delay_ms = 1.15;
	134	else
	135	/* Emulated serial over USB or bluetooth is just enqueueing. */
	136	byte_delay_ms = 0;
	137
	138	/* This is how the vendor software scans for hardware. */
33c40990 BV	139	memset(packet, 0, PACKET_SIZE);
	140	packet[0] = 0xaa;
	141	packet[1] = 0xaa;
945cfd4f BV	142	if (serial_write_blocking(serial, packet, PACKET_SIZE,
945cfd4f BV	143	byte_delay_ms * PACKET_SIZE + 1) < PACKET_SIZE) {
081c214e	144	sr_err("Unable to write while probing for hardware.");
33c40990 BV	145	return NULL;
	146	}
	147	/* The device responds with a 24-byte packet when it receives a packet.
	148	* At 9600 baud, 300ms is long enough for it to have arrived. */
	149	g_usleep(300 * 1000);
	150	memset(packet, 0, PACKET_SIZE);
	151	if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
	152	sr_err("Unable to read while probing for hardware: %s",
	153	strerror(errno));
	154	return NULL;
	155	}
	156	if (ret != PACKET_SIZE \|\| packet[0] != 0xaa \|\| packet[1] != 0xaa) {
	157	/* Doesn't look like an Atten PPS. */
	158	return NULL;
	159	}
	160
	161	model = NULL;
	162	for (i = 0; i < ARRAY_SIZE(models); i++) {
	163	if (models[i].modelid == modelid) {
	164	model = &models[i];
	165	break;
	166	}
	167	}
	168	if (!model) {
	169	sr_err("Unknown modelid %d", modelid);
	170	return NULL;
	171	}
	172
aed4ad0b	173	sdi = sr_dev_inst_new(SR_ST_INACTIVE, "Atten", model->name, NULL);
33c40990 BV	174	sdi->driver = di;
	175	sdi->inst_type = SR_INST_SERIAL;
	176	sdi->conn = serial;
	177	for (i = 0; i < MAX_CHANNELS; i++) {
	178	snprintf(channel, 10, "CH%d", i + 1);
3f239f08	179	ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channel);
ba7dd8bb	180	sdi->channels = g_slist_append(sdi->channels, ch);
40fd0264 UH	181	cg = g_malloc(sizeof(struct sr_channel_group));
40fd0264 UH	182	cg->name = g_strdup(channel);
ba7dd8bb	183	cg->channels = g_slist_append(NULL, ch);
40fd0264 UH	184	cg->priv = NULL;
40fd0264 UH	185	sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
33c40990 BV	186	}
	187
	188	devc = g_malloc0(sizeof(struct dev_context));
	189	devc->model = model;
	190	devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
945cfd4f	191	devc->byte_delay_ms = byte_delay_ms;
33c40990 BV	192	sdi->priv = devc;
	193	drvc->instances = g_slist_append(drvc->instances, sdi);
	194	devices = g_slist_append(devices, sdi);
	195
	196	serial_close(serial);
	197	if (!devices)
	198	sr_serial_dev_inst_free(serial);
fa0d6afe BV	199
	200	return devices;
	201	}
	202
33c40990 BV	203	static GSList scan_3203(GSList options)
	204	{
	205	return scan(options, PPS_3203T_3S);
	206	}
	207
fa0d6afe BV	208	static GSList *dev_list(void)
	209	{
	210	return ((struct drv_context *)(di->priv))->instances;
	211	}
	212
fa0d6afe BV	213	static int cleanup(void)
fa0d6afe BV	214	{
a6630742	215	return std_dev_clear(di, NULL);
fa0d6afe BV	216	}
fa0d6afe BV	217
584560f1	218	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	219	const struct sr_channel_group *cg)
fa0d6afe	220	{
33c40990	221	struct dev_context *devc;
ba7dd8bb	222	struct sr_channel *ch;
33c40990 BV	223	int channel, ret;
	224
	225	if (!sdi)
	226	return SR_ERR_ARG;
fa0d6afe	227
33c40990	228	devc = sdi->priv;
fa0d6afe BV	229
fa0d6afe BV	230	ret = SR_OK;
53b4680f	231	if (!cg) {
660e398f	232	/* No channel group: global options. */
33c40990	233	switch (key) {
a1eaa9e0	234	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
fe997353	235	*data = g_variant_new_string(channel_modes[devc->channel_mode]);
33c40990	236	break;
a1eaa9e0	237	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	238	*data = g_variant_new_boolean(devc->over_current_protection);
	239	break;
	240	default:
	241	return SR_ERR_NA;
	242	}
	243	} else {
660e398f	244	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	245	ch = cg->channels->data;
ba7dd8bb UH	246	channel = ch->index;
33c40990 BV	247
	248	switch (key) {
	249	case SR_CONF_OUTPUT_VOLTAGE:
	250	*data = g_variant_new_double(devc->config[channel].output_voltage_last);
	251	break;
	252	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	253	*data = g_variant_new_double(devc->config[channel].output_voltage_max);
	254	break;
	255	case SR_CONF_OUTPUT_CURRENT:
	256	*data = g_variant_new_double(devc->config[channel].output_current_last);
	257	break;
	258	case SR_CONF_OUTPUT_CURRENT_MAX:
	259	*data = g_variant_new_double(devc->config[channel].output_current_max);
	260	break;
	261	case SR_CONF_OUTPUT_ENABLED:
	262	*data = g_variant_new_boolean(devc->config[channel].output_enabled);
	263	break;
	264	default:
	265	return SR_ERR_NA;
	266	}
fa0d6afe BV	267	}
	268
	269	return ret;
	270	}
	271
33c40990 BV	272	static int find_str(const char str, const char *strings, int array_size)
	273	{
	274	int idx, i;
	275
	276	idx = -1;
	277	for (i = 0; i < array_size; i++) {
	278	if (!strcmp(str, strings[i])) {
	279	idx = i;
	280	break;
	281	}
	282	}
	283
	284	return idx;
	285	}
	286
584560f1	287	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	288	const struct sr_channel_group *cg)
fa0d6afe	289	{
33c40990	290	struct dev_context *devc;
ba7dd8bb	291	struct sr_channel *ch;
33c40990 BV	292	gdouble dval;
	293	int channel, ret, ival;
	294	const char *sval;
	295	gboolean bval;
fa0d6afe BV	296
	297	if (sdi->status != SR_ST_ACTIVE)
	298	return SR_ERR_DEV_CLOSED;
	299
	300	ret = SR_OK;
33c40990	301	devc = sdi->priv;
53b4680f	302	if (!cg) {
660e398f	303	/* No channel group: global options. */
33c40990	304	switch (key) {
a1eaa9e0	305	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
33c40990 BV	306	sval = g_variant_get_string(data, NULL);
	307	if ((ival = find_str(sval, channel_modes,
	308	ARRAY_SIZE(channel_modes))) == -1) {
	309	ret = SR_ERR_ARG;
	310	break;
	311	}
	312	if (devc->model->channel_modes && (1 << ival) == 0) {
	313	/* Not supported on this model. */
	314	ret = SR_ERR_ARG;
	315	}
	316	if (ival == devc->channel_mode_set)
	317	/* Nothing to do. */
	318	break;
	319	devc->channel_mode_set = ival;
ab988ecb	320	devc->config_dirty = TRUE;
33c40990	321	break;
a1eaa9e0	322	case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
33c40990 BV	323	bval = g_variant_get_boolean(data);
	324	if (bval == devc->over_current_protection_set)
	325	/* Nothing to do. */
	326	break;
	327	devc->over_current_protection_set = bval;
ab988ecb	328	devc->config_dirty = TRUE;
33c40990 BV	329	break;
	330	default:
	331	return SR_ERR_NA;
	332	}
	333	} else {
660e398f UH	334	/* Channel group specified: per-channel options. */
660e398f UH	335	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	336	ch = cg->channels->data;
ba7dd8bb UH	337	channel = ch->index;
33c40990 BV	338
	339	switch (key) {
	340	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	341	dval = g_variant_get_double(data);
	342	if (dval < 0 \|\| dval > devc->model->channels[channel].voltage[1])
	343	ret = SR_ERR_ARG;
	344	devc->config[channel].output_voltage_max = dval;
ab988ecb	345	devc->config_dirty = TRUE;
33c40990 BV	346	break;
	347	case SR_CONF_OUTPUT_CURRENT_MAX:
	348	dval = g_variant_get_double(data);
	349	if (dval < 0 \|\| dval > devc->model->channels[channel].current[1])
	350	ret = SR_ERR_ARG;
	351	devc->config[channel].output_current_max = dval;
ab988ecb	352	devc->config_dirty = TRUE;
33c40990 BV	353	break;
	354	case SR_CONF_OUTPUT_ENABLED:
	355	bval = g_variant_get_boolean(data);
	356	if (bval == devc->config[channel].output_enabled_set)
	357	/* Nothing to do. */
	358	break;
	359	devc->config[channel].output_enabled_set = bval;
ab988ecb	360	devc->config_dirty = TRUE;
33c40990 BV	361	break;
	362	default:
	363	ret = SR_ERR_NA;
	364	}
fa0d6afe BV	365	}
fa0d6afe BV	366
33c40990	367
fa0d6afe BV	368	return ret;
	369	}
	370
584560f1	371	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	372	const struct sr_channel_group *cg)
fa0d6afe	373	{
33c40990	374	struct dev_context *devc;
ba7dd8bb	375	struct sr_channel *ch;
33c40990 BV	376	GVariant *gvar;
	377	GVariantBuilder gvb;
	378	int channel, ret, i;
	379
	380	/* Always available, even without sdi. */
	381	if (key == SR_CONF_SCAN_OPTIONS) {
584560f1 BV	382	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	383	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
33c40990 BV	384	return SR_OK;
	385	}
	386
e22aa878 BV	387	if (!sdi)
e22aa878 BV	388	return SR_ERR_ARG;
33c40990	389	devc = sdi->priv;
fa0d6afe BV	390
fa0d6afe BV	391	ret = SR_OK;
53b4680f	392	if (!cg) {
660e398f	393	/* No channel group: global options. */
33c40990 BV	394	switch (key) {
33c40990 BV	395	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	396	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	397	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
33c40990	398	break;
a1eaa9e0	399	case SR_CONF_OUTPUT_CHANNEL_CONFIG:
33c40990 BV	400	if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
	401	/* The 1-channel models. */
	402	*data = g_variant_new_strv(channel_modes, 1);
	403	} else {
	404	/* The other models support all modes. */
	405	*data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
	406	}
	407	break;
	408	default:
	409	return SR_ERR_NA;
	410	}
	411	} else {
660e398f	412	/* Channel group specified: per-channel options. */
33c40990 BV	413	if (!sdi)
33c40990 BV	414	return SR_ERR_ARG;
660e398f	415	/* We only ever have one channel per channel group in this driver. */
ba7dd8bb UH	416	ch = cg->channels->data;
ba7dd8bb UH	417	channel = ch->index;
33c40990 BV	418
	419	switch (key) {
	420	case SR_CONF_DEVICE_OPTIONS:
584560f1 BV	421	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
584560f1 BV	422	devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
33c40990 BV	423	break;
	424	case SR_CONF_OUTPUT_VOLTAGE_MAX:
	425	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	426	/* Min, max, step. */
	427	for (i = 0; i < 3; i++) {
	428	gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
	429	g_variant_builder_add_value(&gvb, gvar);
	430	}
	431	*data = g_variant_builder_end(&gvb);
	432	break;
	433	case SR_CONF_OUTPUT_CURRENT_MAX:
	434	g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
	435	/* Min, max, step. */
	436	for (i = 0; i < 3; i++) {
	437	gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
	438	g_variant_builder_add_value(&gvb, gvar);
	439	}
	440	*data = g_variant_builder_end(&gvb);
	441	break;
	442	default:
	443	return SR_ERR_NA;
	444	}
fa0d6afe BV	445	}
	446
	447	return ret;
	448	}
	449
ab988ecb BV	450	static int dev_close(struct sr_dev_inst *sdi)
	451	{
	452	struct dev_context *devc;
	453
	454	devc = sdi->priv;
	455	if (devc->config_dirty)
	456	/* Some configuration changes were queued up but didn't
	457	* get sent to the device, likely because we were never
	458	* in acquisition mode. Send them out now. */
	459	send_config(sdi);
	460
	461	return std_serial_dev_close(sdi);
	462	}
	463
fa0d6afe	464	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
33c40990	465	void *cb_data)
fa0d6afe	466	{
33c40990 BV	467	struct dev_context *devc;
	468	struct sr_serial_dev_inst *serial;
	469	uint8_t packet[PACKET_SIZE];
	470
fa0d6afe BV	471	(void)cb_data;
	472
	473	if (sdi->status != SR_ST_ACTIVE)
	474	return SR_ERR_DEV_CLOSED;
	475
33c40990 BV	476	devc = sdi->priv;
	477	memset(devc->packet, 0x44, PACKET_SIZE);
	478	devc->packet_size = 0;
	479
	480	devc->acquisition_running = TRUE;
	481
	482	serial = sdi->conn;
102f1239 BV	483	serial_source_add(sdi->session, serial, G_IO_IN, 50,
102f1239 BV	484	atten_pps3xxx_receive_data, (void *)sdi);
33c40990 BV	485	std_session_send_df_header(cb_data, LOG_PREFIX);
33c40990 BV	486
ba7dd8bb	487	/* Send a "channel" configuration packet now. */
33c40990 BV	488	memset(packet, 0, PACKET_SIZE);
	489	packet[0] = 0xaa;
	490	packet[1] = 0xaa;
	491	send_packet(sdi, packet);
fa0d6afe BV	492
	493	return SR_OK;
	494	}
	495
	496	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	497	{
33c40990 BV	498	struct dev_context *devc;
33c40990 BV	499
fa0d6afe BV	500	(void)cb_data;
	501
	502	if (sdi->status != SR_ST_ACTIVE)
	503	return SR_ERR_DEV_CLOSED;
	504
33c40990 BV	505	devc = sdi->priv;
33c40990 BV	506	devc->acquisition_running = FALSE;
fa0d6afe BV	507
	508	return SR_OK;
	509	}
	510
33c40990 BV	511	SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
	512	.name = "atten-pps3203",
	513	.longname = "Atten PPS3203T-3S",
fa0d6afe BV	514	.api_version = 1,
	515	.init = init,
	516	.cleanup = cleanup,
33c40990	517	.scan = scan_3203,
fa0d6afe	518	.dev_list = dev_list,
a6630742	519	.dev_clear = NULL,
fa0d6afe BV	520	.config_get = config_get,
	521	.config_set = config_set,
	522	.config_list = config_list,
33c40990	523	.dev_open = std_serial_dev_open,
ab988ecb	524	.dev_close = dev_close,
fa0d6afe BV	525	.dev_acquisition_start = dev_acquisition_start,
	526	.dev_acquisition_stop = dev_acquisition_stop,
	527	.priv = NULL,
	528	};