[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 <config.h>
#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)
{
	struct drv_context *drvc = di->context;
	GSList *l;
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	int ret = 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 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 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)
{
	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;

	std_session_send_df_header(sdi, 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, sdi);

	return SR_OK;
}

/* This stops acquisition on ALL devices, ignoring dev_index. */
static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	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 = std_cleanup,
	.scan = scan,
	.dev_list = std_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 <config.h>
	23	#include "protocol.h"
	24
	25	static const uint32_t devopts[] = {
	26	SR_CONF_OSCILLOSCOPE,
	27	SR_CONF_LOGIC_ANALYZER,
	28	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	29	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	30	SR_CONF_TRIGGER_TYPE \| SR_CONF_LIST,
	31	SR_CONF_TRIGGER_SLOPE \| SR_CONF_SET,
	32	SR_CONF_HORIZ_TRIGGERPOS \| SR_CONF_SET,
	33	SR_CONF_CAPTURE_RATIO \| SR_CONF_SET,
	34	SR_CONF_RLE \| SR_CONF_SET,
	35	};
	36
	37	/*
	38	* Channels are numbered 0 to 7.
	39	*
	40	* See also: http://www.linkinstruments.com/images/mso19_1113.gif
	41	*/
	42	static const char *channel_names[] = {
	43	/* Note: DSO needs to be first. */
	44	"DSO", "0", "1", "2", "3", "4", "5", "6", "7",
	45	};
	46
	47	static const uint64_t samplerates[] = {
	48	SR_HZ(100),
	49	SR_MHZ(200),
	50	SR_HZ(100),
	51	};
	52
	53	SR_PRIV struct sr_dev_driver link_mso19_driver_info;
	54
	55	/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
	56	static int dev_clear(const struct sr_dev_driver *di)
	57	{
	58	struct drv_context *drvc = di->context;
	59	GSList *l;
	60	struct sr_dev_inst *sdi;
	61	struct dev_context *devc;
	62	int ret = SR_OK;
	63
	64	/* Properly close and free all devices. */
	65	for (l = drvc->instances; l; l = l->next) {
	66	if (!(sdi = l->data)) {
	67	/* Log error, but continue cleaning up the rest. */
	68	sr_err("%s: sdi was NULL, continuing", __func__);
	69	ret = SR_ERR_BUG;
	70	continue;
	71	}
	72	if (!(devc = sdi->priv)) {
	73	/* Log error, but continue cleaning up the rest. */
	74	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	75	ret = SR_ERR_BUG;
	76	continue;
	77	}
	78	std_serial_dev_close(sdi);
	79	sr_serial_dev_inst_free(devc->serial);
	80	sr_dev_inst_free(sdi);
	81	}
	82	g_slist_free(drvc->instances);
	83	drvc->instances = NULL;
	84
	85	return ret;
	86	}
	87
	88	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
	89	{
	90	return std_init(sr_ctx, di, LOG_PREFIX);
	91	}
	92
	93	static GSList scan(struct sr_dev_driver di, GSList *options)
	94	{
	95	int i;
	96	GSList *devices = NULL;
	97	const char *conn = NULL;
	98	const char *serialcomm = NULL;
	99	GSList *l;
	100	struct sr_config *src;
	101	struct udev *udev;
	102	int chtype;
	103
	104	for (l = options; l; l = l->next) {
	105	src = l->data;
	106	switch (src->key) {
	107	case SR_CONF_CONN:
	108	conn = g_variant_get_string(src->data, NULL);
	109	break;
	110	case SR_CONF_SERIALCOMM:
	111	serialcomm = g_variant_get_string(src->data, NULL);
	112	break;
	113	}
	114	}
	115	if (!conn)
	116	conn = SERIALCONN;
	117	if (!serialcomm)
	118	serialcomm = SERIALCOMM;
	119
	120	udev = udev_new();
	121	if (!udev) {
	122	sr_err("Failed to initialize udev.");
	123	}
	124
	125	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	126	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	127	udev_enumerate_scan_devices(enumerate);
	128	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	129	struct udev_list_entry *dev_list_entry;
	130	for (dev_list_entry = devs;
	131	dev_list_entry != NULL;
	132	dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
	133	const char *syspath = udev_list_entry_get_name(dev_list_entry);
	134	struct udev_device *dev =
	135	udev_device_new_from_syspath(udev, syspath);
	136	const char *sysname = udev_device_get_sysname(dev);
	137	struct udev_device *parent =
	138	udev_device_get_parent_with_subsystem_devtype(dev, "usb",
	139	"usb_device");
	140
	141	if (!parent) {
	142	sr_err("Unable to find parent usb device for %s",
	143	sysname);
	144	continue;
	145	}
	146
	147	const char *idVendor =
	148	udev_device_get_sysattr_value(parent, "idVendor");
	149	const char *idProduct =
	150	udev_device_get_sysattr_value(parent, "idProduct");
	151	if (strcmp(USB_VENDOR, idVendor)
	152	\|\| strcmp(USB_PRODUCT, idProduct))
	153	continue;
	154
	155	const char *iSerial =
	156	udev_device_get_sysattr_value(parent, "serial");
	157	const char *iProduct =
	158	udev_device_get_sysattr_value(parent, "product");
	159
	160	char path[32];
	161	snprintf(path, sizeof(path), "/dev/%s", sysname);
	162	conn = path;
	163
	164	size_t s = strcspn(iProduct, " ");
	165	char product[32];
	166	char manufacturer[32];
	167	if (s > sizeof(product) \|\|
	168	strlen(iProduct) - s > sizeof(manufacturer)) {
	169	sr_err("Could not parse iProduct: %s.", iProduct);
	170	continue;
	171	}
	172	strncpy(product, iProduct, s);
	173	product[s] = 0;
	174	strcpy(manufacturer, iProduct + s + 1);
	175
	176	//Create the device context and set its params
	177	struct dev_context *devc;
	178	devc = g_malloc0(sizeof(struct dev_context));
	179
	180	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	181	sr_err("Invalid iSerial: %s.", iSerial);
	182	g_free(devc);
	183	return devices;
	184	}
	185
	186	char hwrev[32];
	187	sprintf(hwrev, "r%d", devc->hwrev);
	188	devc->ctlbase1 = 0;
	189	devc->protocol_trigger.spimode = 0;
	190	for (i = 0; i < 4; i++) {
	191	devc->protocol_trigger.word[i] = 0;
	192	devc->protocol_trigger.mask[i] = 0xff;
	193	}
	194
	195	devc->serial = sr_serial_dev_inst_new(conn, serialcomm);
	196
	197	struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst));
	198	sdi->status = SR_ST_INACTIVE;
	199	sdi->vendor = g_strdup(manufacturer);
	200	sdi->model = g_strdup(product);
	201	sdi->version = g_strdup(hwrev);
	202
	203	if (!sdi) {
	204	sr_err("Unable to create device instance for %s",
	205	sysname);
	206	sr_dev_inst_free(sdi);
	207	g_free(devc);
	208	return devices;
	209	}
	210
	211	sdi->driver = di;
	212	sdi->priv = devc;
	213
	214	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
	215	chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
	216	sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]);
	217	}
	218
	219	//Add the driver
	220	struct drv_context *drvc = di->context;
	221	drvc->instances = g_slist_append(drvc->instances, sdi);
	222	devices = g_slist_append(devices, sdi);
	223	}
	224
	225	return devices;
	226	}
	227
	228	static int dev_open(struct sr_dev_inst *sdi)
	229	{
	230	int ret;
	231	struct dev_context *devc;
	232
	233	devc = sdi->priv;
	234
	235	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	236	return SR_ERR;
	237
	238	sdi->status = SR_ST_ACTIVE;
	239
	240	/* FIXME: discard serial buffer */
	241	mso_check_trigger(devc->serial, &devc->trigger_state);
	242	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	243
	244	ret = mso_reset_adc(sdi);
	245	if (ret != SR_OK)
	246	return ret;
	247
	248	mso_check_trigger(devc->serial, &devc->trigger_state);
	249	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	250
	251	// ret = mso_reset_fsm(sdi);
	252	// if (ret != SR_OK)
	253	// return ret;
	254	// return SR_ERR;
	255
	256	return SR_OK;
	257	}
	258
	259	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
	260	const struct sr_channel_group *cg)
	261	{
	262	struct dev_context *devc;
	263
	264	(void)cg;
	265
	266	switch (key) {
	267	case SR_CONF_SAMPLERATE:
	268	if (sdi) {
	269	devc = sdi->priv;
	270	*data = g_variant_new_uint64(devc->cur_rate);
	271	} else
	272	return SR_ERR;
	273	break;
	274	default:
	275	return SR_ERR_NA;
	276	}
	277
	278	return SR_OK;
	279	}
	280
	281	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
	282	const struct sr_channel_group *cg)
	283	{
	284	int ret;
	285	struct dev_context *devc;
	286	uint64_t num_samples;
	287	const char *slope;
	288	int trigger_pos;
	289	double pos;
	290
	291	(void)cg;
	292	devc = sdi->priv;
	293
	294	if (sdi->status != SR_ST_ACTIVE)
	295	return SR_ERR_DEV_CLOSED;
	296
	297	switch (key) {
	298	case SR_CONF_SAMPLERATE:
	299	// FIXME
	300	return mso_configure_rate(sdi, g_variant_get_uint64(data));
	301	ret = SR_OK;
	302	break;
	303	case SR_CONF_LIMIT_SAMPLES:
	304	num_samples = g_variant_get_uint64(data);
	305	if (num_samples != 1024) {
	306	sr_err("Only 1024 samples are supported.");
	307	ret = SR_ERR_ARG;
	308	} else {
	309	devc->limit_samples = num_samples;
	310	ret = SR_OK;
	311	}
	312	break;
	313	case SR_CONF_CAPTURE_RATIO:
	314	ret = SR_OK;
	315	break;
	316	case SR_CONF_TRIGGER_SLOPE:
	317	slope = g_variant_get_string(data, NULL);
	318
	319	if (!slope \|\| !(slope[0] == 'f' \|\| slope[0] == 'r'))
	320	sr_err("Invalid trigger slope");
	321	ret = SR_ERR_ARG;
	322	} else {
	323	devc->trigger_slope = (slope[0] == 'r')
	324	? SLOPE_POSITIVE : SLOPE_NEGATIVE;
	325	ret = SR_OK;
	326	}
	327	break;
	328	case SR_CONF_HORIZ_TRIGGERPOS:
	329	pos = g_variant_get_double(data);
	330	if (pos < 0 \|\| pos > 255) {
	331	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	332	ret = SR_ERR_ARG;
	333	} else {
	334	trigger_pos = (int)pos;
	335	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	336	ret = SR_OK;
	337	}
	338	break;
	339	case SR_CONF_RLE:
	340	ret = SR_OK;
	341	break;
	342	default:
	343	ret = SR_ERR_NA;
	344	break;
	345	}
	346
	347	return ret;
	348	}
	349
	350	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	351	const struct sr_channel_group *cg)
	352	{
	353	GVariant *gvar;
	354	GVariantBuilder gvb;
	355
	356	(void)cg;
	357	(void)sdi;
	358
	359	switch (key) {
	360	case SR_CONF_DEVICE_OPTIONS:
	361	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	362	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	363	break;
	364	case SR_CONF_SAMPLERATE:
	365	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	366	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	367	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	368	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	369	*data = g_variant_builder_end(&gvb);
	370	break;
	371	case SR_CONF_TRIGGER_TYPE:
	372	*data = g_variant_new_string(TRIGGER_TYPE);
	373	break;
	374	default:
	375	return SR_ERR_NA;
	376	}
	377
	378	return SR_OK;
	379	}
	380
	381	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	382	{
	383	struct dev_context *devc;
	384	int ret = SR_ERR;
	385
	386	if (sdi->status != SR_ST_ACTIVE)
	387	return SR_ERR_DEV_CLOSED;
	388
	389	devc = sdi->priv;
	390
	391	if (mso_configure_channels(sdi) != SR_OK) {
	392	sr_err("Failed to configure channels.");
	393	return SR_ERR;
	394	}
	395
	396	/* FIXME: No need to do full reconfigure every time */
	397	// ret = mso_reset_fsm(sdi);
	398	// if (ret != SR_OK)
	399	// return ret;
	400
	401	/* FIXME: ACDC Mode */
	402	devc->ctlbase1 &= 0x7f;
	403	// devc->ctlbase1 \|= devc->acdcmode;
	404
	405	ret = mso_configure_rate(sdi, devc->cur_rate);
	406	if (ret != SR_OK)
	407	return ret;
	408
	409	/* set dac offset */
	410	ret = mso_dac_out(sdi, devc->dac_offset);
	411	if (ret != SR_OK)
	412	return ret;
	413
	414	ret = mso_configure_threshold_level(sdi);
	415	if (ret != SR_OK)
	416	return ret;
	417
	418	ret = mso_configure_trigger(sdi);
	419	if (ret != SR_OK)
	420	return ret;
	421
	422	/* END of config hardware part */
	423	ret = mso_arm(sdi);
	424	if (ret != SR_OK)
	425	return ret;
	426
	427	/* Start acquisition on the device. */
	428	mso_check_trigger(devc->serial, &devc->trigger_state);
	429	ret = mso_check_trigger(devc->serial, NULL);
	430	if (ret != SR_OK)
	431	return ret;
	432
	433	/* Reset trigger state. */
	434	devc->trigger_state = 0x00;
	435
	436	std_session_send_df_header(sdi, LOG_PREFIX);
	437
	438	/* Our first channel is analog, the other 8 are of type 'logic'. */
	439	/* TODO. */
	440
	441	serial_source_add(sdi->session, devc->serial, G_IO_IN, -1,
	442	mso_receive_data, sdi);
	443
	444	return SR_OK;
	445	}
	446
	447	/* This stops acquisition on ALL devices, ignoring dev_index. */
	448	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	449	{
	450	stop_acquisition(sdi);
	451
	452	return SR_OK;
	453	}
	454
	455	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	456	.name = "link-mso19",
	457	.longname = "Link Instruments MSO-19",
	458	.api_version = 1,
	459	.init = init,
	460	.cleanup = std_cleanup,
	461	.scan = scan,
	462	.dev_list = std_dev_list,
	463	.dev_clear = dev_clear,
	464	.config_get = config_get,
	465	.config_set = config_set,
	466	.config_list = config_list,
	467	.dev_open = dev_open,
	468	.dev_close = std_serial_dev_close,
	469	.dev_acquisition_start = dev_acquisition_start,
	470	.dev_acquisition_stop = dev_acquisition_stop,
	471	.context = NULL,
	472	};