[libsigrok.git] / src / 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 uint32_t devopts[] = {
	SR_CONF_OSCILLOSCOPE,
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_TRIGGER_TYPE | SR_CONF_LIST,
	SR_CONF_TRIGGER_SLOPE | SR_CONF_SET,
	SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_SET,
	SR_CONF_CAPTURE_RATIO | SR_CONF_SET,
	SR_CONF_RLE | SR_CONF_SET,
};

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

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

SR_PRIV struct sr_dev_driver link_mso19_driver_info;

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

	if (!(drvc = di->context))
		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_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 i;
	GSList *devices = NULL;
	const char *conn = NULL;
	const char *serialcomm = NULL;
	GSList *l;
	struct sr_config *src;
	struct udev *udev;
	int chtype;

	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)
		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;
		devc = g_malloc0(sizeof(struct dev_context));

		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;
		}

		devc->serial = sr_serial_dev_inst_new(conn, serialcomm);

		struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst));
		sdi->status = SR_ST_INACTIVE;
		sdi->vendor = g_strdup(manufacturer);
		sdi->model = g_strdup(product);
		sdi->version = g_strdup(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 < ARRAY_SIZE(channel_names); i++) {
			chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
			sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]);
		}

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

	return devices;
}

static GSList *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->context))->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(const struct sr_dev_driver *di)
{
	return dev_clear();
}

static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;

	(void)cg;

	switch (key) {
	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 key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	int ret;
	struct dev_context *devc;
	uint64_t num_samples;
	const char *slope;
	int trigger_pos;
	double pos;

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

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

	switch (key) {
	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;
			ret = SR_OK;
		}
		break;
	case SR_CONF_CAPTURE_RATIO:
		ret = SR_OK;
		break;
	case SR_CONF_TRIGGER_SLOPE:
		slope = g_variant_get_string(data, NULL);

		if (!slope || !(slope[0] == 'f' || slope[0] == 'r'))
			sr_err("Invalid trigger slope");
			ret = SR_ERR_ARG;
		} else {
			devc->trigger_slope = (slope[0] == 'r')
				? SLOPE_POSITIVE : SLOPE_NEGATIVE;
			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_channel_group *cg)
{
	GVariant *gvar;
	GVariantBuilder gvb;

	(void)cg;
	(void)sdi;

	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_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_channels(sdi) != SR_OK) {
		sr_err("Failed to configure channels.");
		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 channel is analog, the other 8 are of type 'logic'. */
	/* TODO. */

	serial_source_add(sdi->session, 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,
	.context = 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 uint32_t devopts[] = {
	25	SR_CONF_OSCILLOSCOPE,
	26	SR_CONF_LOGIC_ANALYZER,
	27	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	28	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	29	SR_CONF_TRIGGER_TYPE \| SR_CONF_LIST,
	30	SR_CONF_TRIGGER_SLOPE \| SR_CONF_SET,
	31	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_SET,
	32	SR_CONF_CAPTURE_RATIO \| SR_CONF_SET,
	33	SR_CONF_RLE \| SR_CONF_SET,
	34	};
	35
	36	/*
	37	* Channels are numbered 0 to 7.
	38	*
	39	* See also: http://www.linkinstruments.com/images/mso19_1113.gif
	40	*/
	41	static const char *channel_names[] = {
	42	/* Note: DSO needs to be first. */
	43	"DSO", "0", "1", "2", "3", "4", "5", "6", "7",
	44	};
	45
	46	static const uint64_t samplerates[] = {
	47	SR_HZ(100),
	48	SR_MHZ(200),
	49	SR_HZ(100),
	50	};
	51
	52	SR_PRIV struct sr_dev_driver link_mso19_driver_info;
	53
	54	/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
	55	static int dev_clear(const struct sr_dev_driver *di)
	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->context))
	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_dev_driver di, struct sr_context sr_ctx)
	91	{
	92	return std_init(sr_ctx, di, LOG_PREFIX);
	93	}
	94
	95	static GSList scan(struct sr_dev_driver di, 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 chtype;
	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)
	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	devc = g_malloc0(sizeof(struct dev_context));
	181
	182	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	183	sr_err("Invalid iSerial: %s.", iSerial);
	184	g_free(devc);
	185	return devices;
	186	}
	187
	188	char hwrev[32];
	189	sprintf(hwrev, "r%d", devc->hwrev);
	190	devc->ctlbase1 = 0;
	191	devc->protocol_trigger.spimode = 0;
	192	for (i = 0; i < 4; i++) {
	193	devc->protocol_trigger.word[i] = 0;
	194	devc->protocol_trigger.mask[i] = 0xff;
	195	}
	196
	197	devc->serial = sr_serial_dev_inst_new(conn, serialcomm);
	198
	199	struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst));
	200	sdi->status = SR_ST_INACTIVE;
	201	sdi->vendor = g_strdup(manufacturer);
	202	sdi->model = g_strdup(product);
	203	sdi->version = g_strdup(hwrev);
	204
	205	if (!sdi) {
	206	sr_err("Unable to create device instance for %s",
	207	sysname);
	208	sr_dev_inst_free(sdi);
	209	g_free(devc);
	210	return devices;
	211	}
	212
	213	sdi->driver = di;
	214	sdi->priv = devc;
	215
	216	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
	217	chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
	218	sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]);
	219	}
	220
	221	//Add the driver
	222	struct drv_context *drvc = di->context;
	223	drvc->instances = g_slist_append(drvc->instances, sdi);
	224	devices = g_slist_append(devices, sdi);
	225	}
	226
	227	return devices;
	228	}
	229
	230	static GSList dev_list(const struct sr_dev_driver di)
	231	{
	232	return ((struct drv_context *)(di->context))->instances;
	233	}
	234
	235	static int dev_open(struct sr_dev_inst *sdi)
	236	{
	237	int ret;
	238	struct dev_context *devc;
	239
	240	devc = sdi->priv;
	241
	242	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	243	return SR_ERR;
	244
	245	sdi->status = SR_ST_ACTIVE;
	246
	247	/* FIXME: discard serial buffer */
	248	mso_check_trigger(devc->serial, &devc->trigger_state);
	249	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	250
	251	ret = mso_reset_adc(sdi);
	252	if (ret != SR_OK)
	253	return ret;
	254
	255	mso_check_trigger(devc->serial, &devc->trigger_state);
	256	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	257
	258	// ret = mso_reset_fsm(sdi);
	259	// if (ret != SR_OK)
	260	// return ret;
	261	// return SR_ERR;
	262
	263	return SR_OK;
	264	}
	265
	266	static int cleanup(const struct sr_dev_driver *di)
	267	{
	268	return dev_clear();
	269	}
	270
	271	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
	272	const struct sr_channel_group *cg)
	273	{
	274	struct dev_context *devc;
	275
	276	(void)cg;
	277
	278	switch (key) {
	279	case SR_CONF_SAMPLERATE:
	280	if (sdi) {
	281	devc = sdi->priv;
	282	*data = g_variant_new_uint64(devc->cur_rate);
	283	} else
	284	return SR_ERR;
	285	break;
	286	default:
	287	return SR_ERR_NA;
	288	}
	289
	290	return SR_OK;
	291	}
	292
	293	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
	294	const struct sr_channel_group *cg)
	295	{
	296	int ret;
	297	struct dev_context *devc;
	298	uint64_t num_samples;
	299	const char *slope;
	300	int trigger_pos;
	301	double pos;
	302
	303	(void)cg;
	304	devc = sdi->priv;
	305
	306	if (sdi->status != SR_ST_ACTIVE)
	307	return SR_ERR_DEV_CLOSED;
	308
	309	switch (key) {
	310	case SR_CONF_SAMPLERATE:
	311	// FIXME
	312	return mso_configure_rate(sdi, g_variant_get_uint64(data));
	313	ret = SR_OK;
	314	break;
	315	case SR_CONF_LIMIT_SAMPLES:
	316	num_samples = g_variant_get_uint64(data);
	317	if (num_samples != 1024) {
	318	sr_err("Only 1024 samples are supported.");
	319	ret = SR_ERR_ARG;
	320	} else {
	321	devc->limit_samples = num_samples;
	322	ret = SR_OK;
	323	}
	324	break;
	325	case SR_CONF_CAPTURE_RATIO:
	326	ret = SR_OK;
	327	break;
	328	case SR_CONF_TRIGGER_SLOPE:
	329	slope = g_variant_get_string(data, NULL);
	330
	331	if (!slope \|\| !(slope[0] == 'f' \|\| slope[0] == 'r'))
	332	sr_err("Invalid trigger slope");
	333	ret = SR_ERR_ARG;
	334	} else {
	335	devc->trigger_slope = (slope[0] == 'r')
	336	? SLOPE_POSITIVE : SLOPE_NEGATIVE;
	337	ret = SR_OK;
	338	}
	339	break;
	340	case SR_CONF_HORIZ_TRIGGERPOS:
	341	pos = g_variant_get_double(data);
	342	if (pos < 0 \|\| pos > 255) {
	343	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	344	ret = SR_ERR_ARG;
	345	} else {
	346	trigger_pos = (int)pos;
	347	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	348	ret = SR_OK;
	349	}
	350	break;
	351	case SR_CONF_RLE:
	352	ret = SR_OK;
	353	break;
	354	default:
	355	ret = SR_ERR_NA;
	356	break;
	357	}
	358
	359	return ret;
	360	}
	361
	362	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	363	const struct sr_channel_group *cg)
	364	{
	365	GVariant *gvar;
	366	GVariantBuilder gvb;
	367
	368	(void)cg;
	369	(void)sdi;
	370
	371	switch (key) {
	372	case SR_CONF_DEVICE_OPTIONS:
	373	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	374	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	375	break;
	376	case SR_CONF_SAMPLERATE:
	377	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	378	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	379	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	380	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	381	*data = g_variant_builder_end(&gvb);
	382	break;
	383	case SR_CONF_TRIGGER_TYPE:
	384	*data = g_variant_new_string(TRIGGER_TYPE);
	385	break;
	386	default:
	387	return SR_ERR_NA;
	388	}
	389
	390	return SR_OK;
	391	}
	392
	393	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	394	{
	395	struct dev_context *devc;
	396	int ret = SR_ERR;
	397
	398	if (sdi->status != SR_ST_ACTIVE)
	399	return SR_ERR_DEV_CLOSED;
	400
	401	devc = sdi->priv;
	402
	403	if (mso_configure_channels(sdi) != SR_OK) {
	404	sr_err("Failed to configure channels.");
	405	return SR_ERR;
	406	}
	407
	408	/* FIXME: No need to do full reconfigure every time */
	409	// ret = mso_reset_fsm(sdi);
	410	// if (ret != SR_OK)
	411	// return ret;
	412
	413	/* FIXME: ACDC Mode */
	414	devc->ctlbase1 &= 0x7f;
	415	// devc->ctlbase1 \|= devc->acdcmode;
	416
	417	ret = mso_configure_rate(sdi, devc->cur_rate);
	418	if (ret != SR_OK)
	419	return ret;
	420
	421	/* set dac offset */
	422	ret = mso_dac_out(sdi, devc->dac_offset);
	423	if (ret != SR_OK)
	424	return ret;
	425
	426	ret = mso_configure_threshold_level(sdi);
	427	if (ret != SR_OK)
	428	return ret;
	429
	430	ret = mso_configure_trigger(sdi);
	431	if (ret != SR_OK)
	432	return ret;
	433
	434	/* END of config hardware part */
	435	ret = mso_arm(sdi);
	436	if (ret != SR_OK)
	437	return ret;
	438
	439	/* Start acquisition on the device. */
	440	mso_check_trigger(devc->serial, &devc->trigger_state);
	441	ret = mso_check_trigger(devc->serial, NULL);
	442	if (ret != SR_OK)
	443	return ret;
	444
	445	/* Reset trigger state. */
	446	devc->trigger_state = 0x00;
	447
	448	/* Send header packet to the session bus. */
	449	std_session_send_df_header(cb_data, LOG_PREFIX);
	450
	451	/* Our first channel is analog, the other 8 are of type 'logic'. */
	452	/* TODO. */
	453
	454	serial_source_add(sdi->session, devc->serial, G_IO_IN, -1,
	455	mso_receive_data, cb_data);
	456
	457	return SR_OK;
	458	}
	459
	460	/* This stops acquisition on ALL devices, ignoring dev_index. */
	461	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	462	{
	463	(void)cb_data;
	464
	465	stop_acquisition(sdi);
	466
	467	return SR_OK;
	468	}
	469
	470	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	471	.name = "link-mso19",
	472	.longname = "Link Instruments MSO-19",
	473	.api_version = 1,
	474	.init = init,
	475	.cleanup = cleanup,
	476	.scan = scan,
	477	.dev_list = dev_list,
	478	.dev_clear = dev_clear,
	479	.config_get = config_get,
	480	.config_set = config_set,
	481	.config_list = config_list,
	482	.dev_open = dev_open,
	483	.dev_close = std_serial_dev_close,
	484	.dev_acquisition_start = dev_acquisition_start,
	485	.dev_acquisition_stop = dev_acquisition_stop,
	486	.context = NULL,
	487	};