[libsigrok.git] / hardware / link-mso19 / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
 * Copyright (C) 2012 Renato Caldas <rmsc@fe.up.pt>
 * Copyright (C) 2013 Lior Elazary <lelazary@yahoo.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 "protocol.h"

static const int32_t hwcaps[] = {
	SR_CONF_OSCILLOSCOPE,
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_SAMPLERATE,
	SR_CONF_TRIGGER_SLOPE,
	SR_CONF_HORIZ_TRIGGERPOS,
//      SR_CONF_CAPTURE_RATIO,
	SR_CONF_LIMIT_SAMPLES,
//      SR_CONF_RLE,
};

/*
 * Probes are numbered 0 to 7.
 *
 * See also: http://www.linkinstruments.com/images/mso19_1113.gif
 */
SR_PRIV const char *mso19_probe_names[NUM_PROBES + 1] = {
	/* Note: DSO needs to be first. */
	"DSO", "0", "1", "2", "3", "4", "5", "6", "7", NULL,
};

static const uint64_t samplerates[] = {
	SR_HZ(100),
	SR_MHZ(200),
	SR_HZ(100),
};

SR_PRIV struct sr_dev_driver link_mso19_driver_info;
static struct sr_dev_driver *di = &link_mso19_driver_info;

/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
static int dev_clear(void)
{
	GSList *l;
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	int ret = SR_OK;

	if (!(drvc = di->priv))
		return SR_OK;

	/* Properly close and free all devices. */
	for (l = drvc->instances; l; l = l->next) {
		if (!(sdi = l->data)) {
			/* Log error, but continue cleaning up the rest. */
			sr_err("%s: sdi was NULL, continuing", __func__);
			ret = SR_ERR_BUG;
			continue;
		}
		if (!(devc = sdi->priv)) {
			/* Log error, but continue cleaning up the rest. */
			sr_err("%s: sdi->priv was NULL, continuing", __func__);
			ret = SR_ERR_BUG;
			continue;
		}
		std_serial_dev_close(sdi);
		sr_serial_dev_inst_free(devc->serial);
		sr_dev_inst_free(sdi);
	}
	g_slist_free(drvc->instances);
	drvc->instances = NULL;

	return ret;
}

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

static GSList *scan(GSList *options)
{
	int i;
	GSList *devices = NULL;
	const char *conn = NULL;
	const char *serialcomm = NULL;
	GSList *l;
	struct sr_config *src;
	struct udev *udev;
	int ptype;

	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)
		conn = SERIALCONN;
	if (serialcomm == NULL)
		serialcomm = SERIALCOMM;

	udev = udev_new();
	if (!udev) {
		sr_err("Failed to initialize udev.");
	}

	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	udev_enumerate_scan_devices(enumerate);
	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	struct udev_list_entry *dev_list_entry;
	for (dev_list_entry = devs;
	     dev_list_entry != NULL;
	     dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
		const char *syspath = udev_list_entry_get_name(dev_list_entry);
		struct udev_device *dev =
		    udev_device_new_from_syspath(udev, syspath);
		const char *sysname = udev_device_get_sysname(dev);
		struct udev_device *parent =
		    udev_device_get_parent_with_subsystem_devtype(dev, "usb",
								  "usb_device");

		if (!parent) {
			sr_err("Unable to find parent usb device for %s",
			       sysname);
			continue;
		}

		const char *idVendor =
		    udev_device_get_sysattr_value(parent, "idVendor");
		const char *idProduct =
		    udev_device_get_sysattr_value(parent, "idProduct");
		if (strcmp(USB_VENDOR, idVendor)
		    || strcmp(USB_PRODUCT, idProduct))
			continue;

		const char *iSerial =
		    udev_device_get_sysattr_value(parent, "serial");
		const char *iProduct =
		    udev_device_get_sysattr_value(parent, "product");

		char path[32];
		snprintf(path, sizeof(path), "/dev/%s", sysname);
		conn = path;

		size_t s = strcspn(iProduct, " ");
		char product[32];
		char manufacturer[32];
		if (s > sizeof(product) ||
		    strlen(iProduct) - s > sizeof(manufacturer)) {
			sr_err("Could not parse iProduct: %s.", iProduct);
			continue;
		}
		strncpy(product, iProduct, s);
		product[s] = 0;
		strcpy(manufacturer, iProduct + s + 1);

		//Create the device context and set its params
		struct dev_context *devc;
		if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
			sr_err("Device context malloc failed.");
			return devices;
		}

		if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
			sr_err("Invalid iSerial: %s.", iSerial);
			g_free(devc);
			return devices;
		}

		char hwrev[32];
		sprintf(hwrev, "r%d", devc->hwrev);
		devc->ctlbase1 = 0;
		devc->protocol_trigger.spimode = 0;
		for (i = 0; i < 4; i++) {
			devc->protocol_trigger.word[i] = 0;
			devc->protocol_trigger.mask[i] = 0xff;
		}

		if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
			g_free(devc);
			return devices;
		}

		struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
						manufacturer, product, hwrev);

		if (!sdi) {
			sr_err("Unable to create device instance for %s",
			       sysname);
			sr_dev_inst_free(sdi);
			g_free(devc);
			return devices;
		}

		sdi->driver = di;
		sdi->priv = devc;

		for (i = 0; i < NUM_PROBES; i++) {
			struct sr_probe *probe;
			ptype = (i == 0) ? SR_PROBE_ANALOG : SR_PROBE_LOGIC;
			if (!(probe = sr_probe_new(i, ptype, TRUE,
						   mso19_probe_names[i])))
				return 0;
			sdi->probes = g_slist_append(sdi->probes, probe);
		}

		//Add the driver
		struct drv_context *drvc = di->priv;
		drvc->instances = g_slist_append(drvc->instances, sdi);
		devices = g_slist_append(devices, sdi);
	}

	return devices;
}

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

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

	devc = sdi->priv;

	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
		return SR_ERR;

	sdi->status = SR_ST_ACTIVE;

	/* FIXME: discard serial buffer */
	mso_check_trigger(devc->serial, &devc->trigger_state);
	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);

	ret = mso_reset_adc(sdi);
	if (ret != SR_OK)
		return ret;

	mso_check_trigger(devc->serial, &devc->trigger_state);
	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);

	//    ret = mso_reset_fsm(sdi);
	//    if (ret != SR_OK)
	//            return ret;
	//    return SR_ERR;

	return SR_OK;
}

static int cleanup(void)
{
	return dev_clear();
}

static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	struct dev_context *devc;

	(void)probe_group;

	switch (id) {
	case SR_CONF_SAMPLERATE:
		if (sdi) {
			devc = sdi->priv;
			*data = g_variant_new_uint64(devc->cur_rate);
		} else
			return SR_ERR;
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	int ret;
	struct dev_context *devc;
	uint64_t num_samples, slope;
	int trigger_pos;
	double pos;

	(void)probe_group;
	devc = sdi->priv;

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

	switch (id) {
	case SR_CONF_SAMPLERATE:
		// FIXME
		return mso_configure_rate(sdi, g_variant_get_uint64(data));
		ret = SR_OK;
		break;
	case SR_CONF_LIMIT_SAMPLES:
		num_samples = g_variant_get_uint64(data);
		if (num_samples != 1024) {
			sr_err("Only 1024 samples are supported.");
			ret = SR_ERR_ARG;
		} else {
			devc->limit_samples = num_samples;
			sr_dbg("setting limit_samples to %i\n",
			       num_samples);
			ret = SR_OK;
		}
		break;
	case SR_CONF_CAPTURE_RATIO:
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SLOPE:
		slope = g_variant_get_uint64(data);
		if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE) {
			sr_err("Invalid trigger slope");
			ret = SR_ERR_ARG;
		} else {
			devc->trigger_slope = slope;
			ret = SR_OK;
		}
		break;
	case SR_CONF_HORIZ_TRIGGERPOS:
		pos = g_variant_get_double(data);
		if (pos < 0 || pos > 255) {
			sr_err("Trigger position (%f) should be between 0 and 255.", pos);
			ret = SR_ERR_ARG;
		} else {
			trigger_pos = (int)pos;
			devc->trigger_holdoff[0] = trigger_pos & 0xff;
			ret = SR_OK;
		}
		break;
	case SR_CONF_RLE:
		ret = SR_OK;
		break;
	default:
		ret = SR_ERR_NA;
		break;
	}

	return ret;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_probe_group *probe_group)
{
	GVariant *gvar;
	GVariantBuilder gvb;

	(void)probe_group;
	(void)sdi;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
		break;
	case SR_CONF_SAMPLERATE:
		g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
		gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
				ARRAY_SIZE(samplerates), sizeof(uint64_t));
		g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
		*data = g_variant_builder_end(&gvb);
		break;
	case SR_CONF_TRIGGER_TYPE:
		*data = g_variant_new_string(TRIGGER_TYPE);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
	struct dev_context *devc;
	int ret = SR_ERR;

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

	devc = sdi->priv;

	if (mso_configure_probes(sdi) != SR_OK) {
		sr_err("Failed to configure probes.");
		return SR_ERR;
	}

	/* FIXME: No need to do full reconfigure every time */
//      ret = mso_reset_fsm(sdi);
//      if (ret != SR_OK)
//              return ret;

	/* FIXME: ACDC Mode */
	devc->ctlbase1 &= 0x7f;
//      devc->ctlbase1 |= devc->acdcmode;

	ret = mso_configure_rate(sdi, devc->cur_rate);
	if (ret != SR_OK)
		return ret;

	/* set dac offset */
	ret = mso_dac_out(sdi, devc->dac_offset);
	if (ret != SR_OK)
		return ret;

	ret = mso_configure_threshold_level(sdi);
	if (ret != SR_OK)
		return ret;

	ret = mso_configure_trigger(sdi);
	if (ret != SR_OK)
		return ret;

	/* END of config hardware part */
	ret = mso_arm(sdi);
	if (ret != SR_OK)
		return ret;

	/* Start acquisition on the device. */
	mso_check_trigger(devc->serial, &devc->trigger_state);
	ret = mso_check_trigger(devc->serial, NULL);
	if (ret != SR_OK)
		return ret;

	/* Reset trigger state. */
	devc->trigger_state = 0x00;

	/* Send header packet to the session bus. */
	std_session_send_df_header(cb_data, LOG_PREFIX);

	/* Our first probe is analog, the other 8 are of type 'logic'. */
	/* TODO. */

	serial_source_add(devc->serial, G_IO_IN, -1, mso_receive_data, cb_data);

	return SR_OK;
}

/* This stops acquisition on ALL devices, ignoring dev_index. */
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	(void)cb_data;

	stop_acquisition(sdi);

	return SR_OK;
}

SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	.name = "link-mso19",
	.longname = "Link Instruments MSO-19",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = std_serial_dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
	5	* Copyright (C) 2012 Renato Caldas <rmsc@fe.up.pt>
	6	* Copyright (C) 2013 Lior Elazary <lelazary@yahoo.com>
	7	*
	8	* This program is free software: you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation, either version 3 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	20	*/
	21
	22	#include "protocol.h"
	23
	24	static const int32_t hwcaps[] = {
	25	SR_CONF_OSCILLOSCOPE,
	26	SR_CONF_LOGIC_ANALYZER,
	27	SR_CONF_SAMPLERATE,
	28	SR_CONF_TRIGGER_SLOPE,
	29	SR_CONF_HORIZ_TRIGGERPOS,
	30	// SR_CONF_CAPTURE_RATIO,
	31	SR_CONF_LIMIT_SAMPLES,
	32	// SR_CONF_RLE,
	33	};
	34
	35	/*
	36	* Probes are numbered 0 to 7.
	37	*
	38	* See also: http://www.linkinstruments.com/images/mso19_1113.gif
	39	*/
	40	SR_PRIV const char *mso19_probe_names[NUM_PROBES + 1] = {
	41	/* Note: DSO needs to be first. */
	42	"DSO", "0", "1", "2", "3", "4", "5", "6", "7", NULL,
	43	};
	44
	45	static const uint64_t samplerates[] = {
	46	SR_HZ(100),
	47	SR_MHZ(200),
	48	SR_HZ(100),
	49	};
	50
	51	SR_PRIV struct sr_dev_driver link_mso19_driver_info;
	52	static struct sr_dev_driver *di = &link_mso19_driver_info;
	53
	54	/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
	55	static int dev_clear(void)
	56	{
	57	GSList *l;
	58	struct sr_dev_inst *sdi;
	59	struct drv_context *drvc;
	60	struct dev_context *devc;
	61	int ret = SR_OK;
	62
	63	if (!(drvc = di->priv))
	64	return SR_OK;
	65
	66	/* Properly close and free all devices. */
	67	for (l = drvc->instances; l; l = l->next) {
	68	if (!(sdi = l->data)) {
	69	/* Log error, but continue cleaning up the rest. */
	70	sr_err("%s: sdi was NULL, continuing", __func__);
	71	ret = SR_ERR_BUG;
	72	continue;
	73	}
	74	if (!(devc = sdi->priv)) {
	75	/* Log error, but continue cleaning up the rest. */
	76	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	77	ret = SR_ERR_BUG;
	78	continue;
	79	}
	80	std_serial_dev_close(sdi);
	81	sr_serial_dev_inst_free(devc->serial);
	82	sr_dev_inst_free(sdi);
	83	}
	84	g_slist_free(drvc->instances);
	85	drvc->instances = NULL;
	86
	87	return ret;
	88	}
	89
	90	static int init(struct sr_context *sr_ctx)
	91	{
	92	return std_init(sr_ctx, di, LOG_PREFIX);
	93	}
	94
	95	static GSList scan(GSList options)
	96	{
	97	int i;
	98	GSList *devices = NULL;
	99	const char *conn = NULL;
	100	const char *serialcomm = NULL;
	101	GSList *l;
	102	struct sr_config *src;
	103	struct udev *udev;
	104	int ptype;
	105
	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	conn = SERIALCONN;
	119	if (serialcomm == NULL)
	120	serialcomm = SERIALCOMM;
	121
	122	udev = udev_new();
	123	if (!udev) {
	124	sr_err("Failed to initialize udev.");
	125	}
	126
	127	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	128	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	129	udev_enumerate_scan_devices(enumerate);
	130	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	131	struct udev_list_entry *dev_list_entry;
	132	for (dev_list_entry = devs;
	133	dev_list_entry != NULL;
	134	dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
	135	const char *syspath = udev_list_entry_get_name(dev_list_entry);
	136	struct udev_device *dev =
	137	udev_device_new_from_syspath(udev, syspath);
	138	const char *sysname = udev_device_get_sysname(dev);
	139	struct udev_device *parent =
	140	udev_device_get_parent_with_subsystem_devtype(dev, "usb",
	141	"usb_device");
	142
	143	if (!parent) {
	144	sr_err("Unable to find parent usb device for %s",
	145	sysname);
	146	continue;
	147	}
	148
	149	const char *idVendor =
	150	udev_device_get_sysattr_value(parent, "idVendor");
	151	const char *idProduct =
	152	udev_device_get_sysattr_value(parent, "idProduct");
	153	if (strcmp(USB_VENDOR, idVendor)
	154	\|\| strcmp(USB_PRODUCT, idProduct))
	155	continue;
	156
	157	const char *iSerial =
	158	udev_device_get_sysattr_value(parent, "serial");
	159	const char *iProduct =
	160	udev_device_get_sysattr_value(parent, "product");
	161
	162	char path[32];
	163	snprintf(path, sizeof(path), "/dev/%s", sysname);
	164	conn = path;
	165
	166	size_t s = strcspn(iProduct, " ");
	167	char product[32];
	168	char manufacturer[32];
	169	if (s > sizeof(product) \|\|
	170	strlen(iProduct) - s > sizeof(manufacturer)) {
	171	sr_err("Could not parse iProduct: %s.", iProduct);
	172	continue;
	173	}
	174	strncpy(product, iProduct, s);
	175	product[s] = 0;
	176	strcpy(manufacturer, iProduct + s + 1);
	177
	178	//Create the device context and set its params
	179	struct dev_context *devc;
	180	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	181	sr_err("Device context malloc failed.");
	182	return devices;
	183	}
	184
	185	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	186	sr_err("Invalid iSerial: %s.", iSerial);
	187	g_free(devc);
	188	return devices;
	189	}
	190
	191	char hwrev[32];
	192	sprintf(hwrev, "r%d", devc->hwrev);
	193	devc->ctlbase1 = 0;
	194	devc->protocol_trigger.spimode = 0;
	195	for (i = 0; i < 4; i++) {
	196	devc->protocol_trigger.word[i] = 0;
	197	devc->protocol_trigger.mask[i] = 0xff;
	198	}
	199
	200	if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
	201	g_free(devc);
	202	return devices;
	203	}
	204
	205	struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
	206	manufacturer, product, hwrev);
	207
	208	if (!sdi) {
	209	sr_err("Unable to create device instance for %s",
	210	sysname);
	211	sr_dev_inst_free(sdi);
	212	g_free(devc);
	213	return devices;
	214	}
	215
	216	sdi->driver = di;
	217	sdi->priv = devc;
	218
	219	for (i = 0; i < NUM_PROBES; i++) {
	220	struct sr_probe *probe;
	221	ptype = (i == 0) ? SR_PROBE_ANALOG : SR_PROBE_LOGIC;
	222	if (!(probe = sr_probe_new(i, ptype, TRUE,
	223	mso19_probe_names[i])))
	224	return 0;
	225	sdi->probes = g_slist_append(sdi->probes, probe);
	226	}
	227
	228	//Add the driver
	229	struct drv_context *drvc = di->priv;
	230	drvc->instances = g_slist_append(drvc->instances, sdi);
	231	devices = g_slist_append(devices, sdi);
	232	}
	233
	234	return devices;
	235	}
	236
	237	static GSList *dev_list(void)
	238	{
	239	return ((struct drv_context *)(di->priv))->instances;
	240	}
	241
	242	static int dev_open(struct sr_dev_inst *sdi)
	243	{
	244	int ret;
	245	struct dev_context *devc;
	246
	247	devc = sdi->priv;
	248
	249	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	250	return SR_ERR;
	251
	252	sdi->status = SR_ST_ACTIVE;
	253
	254	/* FIXME: discard serial buffer */
	255	mso_check_trigger(devc->serial, &devc->trigger_state);
	256	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	257
	258	ret = mso_reset_adc(sdi);
	259	if (ret != SR_OK)
	260	return ret;
	261
	262	mso_check_trigger(devc->serial, &devc->trigger_state);
	263	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	264
	265	// ret = mso_reset_fsm(sdi);
	266	// if (ret != SR_OK)
	267	// return ret;
	268	// return SR_ERR;
	269
	270	return SR_OK;
	271	}
	272
	273	static int cleanup(void)
	274	{
	275	return dev_clear();
	276	}
	277
	278	static int config_get(int id, GVariant *data, const struct sr_dev_inst sdi,
	279	const struct sr_probe_group *probe_group)
	280	{
	281	struct dev_context *devc;
	282
	283	(void)probe_group;
	284
	285	switch (id) {
	286	case SR_CONF_SAMPLERATE:
	287	if (sdi) {
	288	devc = sdi->priv;
	289	*data = g_variant_new_uint64(devc->cur_rate);
	290	} else
	291	return SR_ERR;
	292	break;
	293	default:
	294	return SR_ERR_NA;
	295	}
	296
	297	return SR_OK;
	298	}
	299
	300	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi,
	301	const struct sr_probe_group *probe_group)
	302	{
	303	int ret;
	304	struct dev_context *devc;
	305	uint64_t num_samples, slope;
	306	int trigger_pos;
	307	double pos;
	308
	309	(void)probe_group;
	310	devc = sdi->priv;
	311
	312	if (sdi->status != SR_ST_ACTIVE)
	313	return SR_ERR_DEV_CLOSED;
	314
	315	switch (id) {
	316	case SR_CONF_SAMPLERATE:
	317	// FIXME
	318	return mso_configure_rate(sdi, g_variant_get_uint64(data));
	319	ret = SR_OK;
	320	break;
	321	case SR_CONF_LIMIT_SAMPLES:
	322	num_samples = g_variant_get_uint64(data);
	323	if (num_samples != 1024) {
	324	sr_err("Only 1024 samples are supported.");
	325	ret = SR_ERR_ARG;
	326	} else {
	327	devc->limit_samples = num_samples;
	328	sr_dbg("setting limit_samples to %i\n",
	329	num_samples);
	330	ret = SR_OK;
	331	}
	332	break;
	333	case SR_CONF_CAPTURE_RATIO:
	334	ret = SR_OK;
	335	break;
	336	case SR_CONF_TRIGGER_SLOPE:
	337	slope = g_variant_get_uint64(data);
	338	if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE) {
	339	sr_err("Invalid trigger slope");
	340	ret = SR_ERR_ARG;
	341	} else {
	342	devc->trigger_slope = slope;
	343	ret = SR_OK;
	344	}
	345	break;
	346	case SR_CONF_HORIZ_TRIGGERPOS:
	347	pos = g_variant_get_double(data);
	348	if (pos < 0 \|\| pos > 255) {
	349	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	350	ret = SR_ERR_ARG;
	351	} else {
	352	trigger_pos = (int)pos;
	353	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	354	ret = SR_OK;
	355	}
	356	break;
	357	case SR_CONF_RLE:
	358	ret = SR_OK;
	359	break;
	360	default:
	361	ret = SR_ERR_NA;
	362	break;
	363	}
	364
	365	return ret;
	366	}
	367
	368	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	369	const struct sr_probe_group *probe_group)
	370	{
	371	GVariant *gvar;
	372	GVariantBuilder gvb;
	373
	374	(void)probe_group;
	375	(void)sdi;
	376
	377	switch (key) {
	378	case SR_CONF_DEVICE_OPTIONS:
	379	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	380	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	381	break;
	382	case SR_CONF_SAMPLERATE:
	383	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	384	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	385	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	386	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	387	*data = g_variant_builder_end(&gvb);
	388	break;
	389	case SR_CONF_TRIGGER_TYPE:
	390	*data = g_variant_new_string(TRIGGER_TYPE);
	391	break;
	392	default:
	393	return SR_ERR_NA;
	394	}
	395
	396	return SR_OK;
	397	}
	398
	399	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	400	{
	401	struct dev_context *devc;
	402	int ret = SR_ERR;
	403
	404	if (sdi->status != SR_ST_ACTIVE)
	405	return SR_ERR_DEV_CLOSED;
	406
	407	devc = sdi->priv;
	408
	409	if (mso_configure_probes(sdi) != SR_OK) {
	410	sr_err("Failed to configure probes.");
	411	return SR_ERR;
	412	}
	413
	414	/* FIXME: No need to do full reconfigure every time */
	415	// ret = mso_reset_fsm(sdi);
	416	// if (ret != SR_OK)
	417	// return ret;
	418
	419	/* FIXME: ACDC Mode */
	420	devc->ctlbase1 &= 0x7f;
	421	// devc->ctlbase1 \|= devc->acdcmode;
	422
	423	ret = mso_configure_rate(sdi, devc->cur_rate);
	424	if (ret != SR_OK)
	425	return ret;
	426
	427	/* set dac offset */
	428	ret = mso_dac_out(sdi, devc->dac_offset);
	429	if (ret != SR_OK)
	430	return ret;
	431
	432	ret = mso_configure_threshold_level(sdi);
	433	if (ret != SR_OK)
	434	return ret;
	435
	436	ret = mso_configure_trigger(sdi);
	437	if (ret != SR_OK)
	438	return ret;
	439
	440	/* END of config hardware part */
	441	ret = mso_arm(sdi);
	442	if (ret != SR_OK)
	443	return ret;
	444
	445	/* Start acquisition on the device. */
	446	mso_check_trigger(devc->serial, &devc->trigger_state);
	447	ret = mso_check_trigger(devc->serial, NULL);
	448	if (ret != SR_OK)
	449	return ret;
	450
	451	/* Reset trigger state. */
	452	devc->trigger_state = 0x00;
	453
	454	/* Send header packet to the session bus. */
	455	std_session_send_df_header(cb_data, LOG_PREFIX);
	456
	457	/* Our first probe is analog, the other 8 are of type 'logic'. */
	458	/* TODO. */
	459
	460	serial_source_add(devc->serial, G_IO_IN, -1, mso_receive_data, cb_data);
	461
	462	return SR_OK;
	463	}
	464
	465	/* This stops acquisition on ALL devices, ignoring dev_index. */
	466	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	467	{
	468	(void)cb_data;
	469
	470	stop_acquisition(sdi);
	471
	472	return SR_OK;
	473	}
	474
	475	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	476	.name = "link-mso19",
	477	.longname = "Link Instruments MSO-19",
	478	.api_version = 1,
	479	.init = init,
	480	.cleanup = cleanup,
	481	.scan = scan,
	482	.dev_list = dev_list,
	483	.dev_clear = dev_clear,
	484	.config_get = config_get,
	485	.config_set = config_set,
	486	.config_list = config_list,
	487	.dev_open = dev_open,
	488	.dev_close = std_serial_dev_close,
	489	.dev_acquisition_start = dev_acquisition_start,
	490	.dev_acquisition_stop = dev_acquisition_stop,
	491	.priv = NULL,
	492	};