[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 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;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

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