[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;

static int dev_close(struct sr_dev_inst *sdi);

/* 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;
		}
		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 dev_close(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;

	if (devc->serial && devc->serial->fd != -1) {
		serial_close(devc->serial);
		sdi->status = SR_ST_INACTIVE;
	}

	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. */

	sr_source_add(devc->serial->fd, 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 = 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	static int dev_close(struct sr_dev_inst *sdi);
	55
	56	/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
	57	static int dev_clear(void)
	58	{
	59	GSList *l;
	60	struct sr_dev_inst *sdi;
	61	struct drv_context *drvc;
	62	struct dev_context *devc;
	63	int ret = SR_OK;
	64
	65	if (!(drvc = di->priv))
	66	return SR_OK;
	67
	68	/* Properly close and free all devices. */
	69	for (l = drvc->instances; l; l = l->next) {
	70	if (!(sdi = l->data)) {
	71	/* Log error, but continue cleaning up the rest. */
	72	sr_err("%s: sdi was NULL, continuing", __func__);
	73	ret = SR_ERR_BUG;
	74	continue;
	75	}
	76	if (!(devc = sdi->priv)) {
	77	/* Log error, but continue cleaning up the rest. */
	78	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	79	ret = SR_ERR_BUG;
	80	continue;
	81	}
	82	dev_close(sdi);
	83	sr_serial_dev_inst_free(devc->serial);
	84	sr_dev_inst_free(sdi);
	85	}
	86	g_slist_free(drvc->instances);
	87	drvc->instances = NULL;
	88
	89	return ret;
	90	}
	91
	92	static int init(struct sr_context *sr_ctx)
	93	{
	94	return std_init(sr_ctx, di, LOG_PREFIX);
	95	}
	96
	97	static GSList scan(GSList options)
	98	{
	99	int i;
	100	GSList *devices = NULL;
	101	const char *conn = NULL;
	102	const char *serialcomm = NULL;
	103	GSList *l;
	104	struct sr_config *src;
	105	struct udev *udev;
	106	int ptype;
	107
	108	for (l = options; l; l = l->next) {
	109	src = l->data;
	110	switch (src->key) {
	111	case SR_CONF_CONN:
	112	conn = g_variant_get_string(src->data, NULL);
	113	break;
	114	case SR_CONF_SERIALCOMM:
	115	serialcomm = g_variant_get_string(src->data, NULL);
	116	break;
	117	}
	118	}
	119	if (!conn)
	120	conn = SERIALCONN;
	121	if (serialcomm == NULL)
	122	serialcomm = SERIALCOMM;
	123
	124	udev = udev_new();
	125	if (!udev) {
	126	sr_err("Failed to initialize udev.");
	127	}
	128
	129	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	130	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	131	udev_enumerate_scan_devices(enumerate);
	132	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	133	struct udev_list_entry *dev_list_entry;
	134	for (dev_list_entry = devs;
	135	dev_list_entry != NULL;
	136	dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
	137	const char *syspath = udev_list_entry_get_name(dev_list_entry);
	138	struct udev_device *dev =
	139	udev_device_new_from_syspath(udev, syspath);
	140	const char *sysname = udev_device_get_sysname(dev);
	141	struct udev_device *parent =
	142	udev_device_get_parent_with_subsystem_devtype(dev, "usb",
	143	"usb_device");
	144
	145	if (!parent) {
	146	sr_err("Unable to find parent usb device for %s",
	147	sysname);
	148	continue;
	149	}
	150
	151	const char *idVendor =
	152	udev_device_get_sysattr_value(parent, "idVendor");
	153	const char *idProduct =
	154	udev_device_get_sysattr_value(parent, "idProduct");
	155	if (strcmp(USB_VENDOR, idVendor)
	156	\|\| strcmp(USB_PRODUCT, idProduct))
	157	continue;
	158
	159	const char *iSerial =
	160	udev_device_get_sysattr_value(parent, "serial");
	161	const char *iProduct =
	162	udev_device_get_sysattr_value(parent, "product");
	163
	164	char path[32];
	165	snprintf(path, sizeof(path), "/dev/%s", sysname);
	166	conn = path;
	167
	168	size_t s = strcspn(iProduct, " ");
	169	char product[32];
	170	char manufacturer[32];
	171	if (s > sizeof(product) \|\|
	172	strlen(iProduct) - s > sizeof(manufacturer)) {
	173	sr_err("Could not parse iProduct: %s.", iProduct);
	174	continue;
	175	}
	176	strncpy(product, iProduct, s);
	177	product[s] = 0;
	178	strcpy(manufacturer, iProduct + s + 1);
	179
	180	//Create the device context and set its params
	181	struct dev_context *devc;
	182	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	183	sr_err("Device context malloc failed.");
	184	return devices;
	185	}
	186
	187	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	188	sr_err("Invalid iSerial: %s.", iSerial);
	189	g_free(devc);
	190	return devices;
	191	}
	192
	193	char hwrev[32];
	194	sprintf(hwrev, "r%d", devc->hwrev);
	195	devc->ctlbase1 = 0;
	196	devc->protocol_trigger.spimode = 0;
	197	for (i = 0; i < 4; i++) {
	198	devc->protocol_trigger.word[i] = 0;
	199	devc->protocol_trigger.mask[i] = 0xff;
	200	}
	201
	202	if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
	203	g_free(devc);
	204	return devices;
	205	}
	206
	207	struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
	208	manufacturer, product, hwrev);
	209
	210	if (!sdi) {
	211	sr_err("Unable to create device instance for %s",
	212	sysname);
	213	sr_dev_inst_free(sdi);
	214	g_free(devc);
	215	return devices;
	216	}
	217
	218	sdi->driver = di;
	219	sdi->priv = devc;
	220
	221	for (i = 0; i < NUM_PROBES; i++) {
	222	struct sr_probe *probe;
	223	ptype = (i == 0) ? SR_PROBE_ANALOG : SR_PROBE_LOGIC;
	224	if (!(probe = sr_probe_new(i, ptype, TRUE,
	225	mso19_probe_names[i])))
	226	return 0;
	227	sdi->probes = g_slist_append(sdi->probes, probe);
	228	}
	229
	230	//Add the driver
	231	struct drv_context *drvc = di->priv;
	232	drvc->instances = g_slist_append(drvc->instances, sdi);
	233	devices = g_slist_append(devices, sdi);
	234	}
	235
	236	return devices;
	237	}
	238
	239	static GSList *dev_list(void)
	240	{
	241	return ((struct drv_context *)(di->priv))->instances;
	242	}
	243
	244	static int dev_open(struct sr_dev_inst *sdi)
	245	{
	246	int ret;
	247	struct dev_context *devc;
	248
	249	devc = sdi->priv;
	250
	251	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	252	return SR_ERR;
	253
	254	sdi->status = SR_ST_ACTIVE;
	255
	256	/* FIXME: discard serial buffer */
	257	mso_check_trigger(devc->serial, &devc->trigger_state);
	258	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	259
	260	ret = mso_reset_adc(sdi);
	261	if (ret != SR_OK)
	262	return ret;
	263
	264	mso_check_trigger(devc->serial, &devc->trigger_state);
	265	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	266
	267	// ret = mso_reset_fsm(sdi);
	268	// if (ret != SR_OK)
	269	// return ret;
	270	// return SR_ERR;
	271
	272	return SR_OK;
	273	}
	274
	275	static int dev_close(struct sr_dev_inst *sdi)
	276	{
	277	struct dev_context *devc;
	278
	279	devc = sdi->priv;
	280
	281	if (devc->serial && devc->serial->fd != -1) {
	282	serial_close(devc->serial);
	283	sdi->status = SR_ST_INACTIVE;
	284	}
	285
	286	return SR_OK;
	287	}
	288
	289	static int cleanup(void)
	290	{
	291	return dev_clear();
	292	}
	293
	294	static int config_get(int id, GVariant *data, const struct sr_dev_inst sdi,
	295	const struct sr_probe_group *probe_group)
	296	{
	297	struct dev_context *devc;
	298
	299	(void)probe_group;
	300
	301	switch (id) {
	302	case SR_CONF_SAMPLERATE:
	303	if (sdi) {
	304	devc = sdi->priv;
	305	*data = g_variant_new_uint64(devc->cur_rate);
	306	} else
	307	return SR_ERR;
	308	break;
	309	default:
	310	return SR_ERR_NA;
	311	}
	312
	313	return SR_OK;
	314	}
	315
	316	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi,
	317	const struct sr_probe_group *probe_group)
	318	{
	319	int ret;
	320	struct dev_context *devc;
	321	uint64_t num_samples, slope;
	322	int trigger_pos;
	323	double pos;
	324
	325	(void)probe_group;
	326	devc = sdi->priv;
	327
	328	if (sdi->status != SR_ST_ACTIVE)
	329	return SR_ERR_DEV_CLOSED;
	330
	331	switch (id) {
	332	case SR_CONF_SAMPLERATE:
	333	// FIXME
	334	return mso_configure_rate(sdi, g_variant_get_uint64(data));
	335	ret = SR_OK;
	336	break;
	337	case SR_CONF_LIMIT_SAMPLES:
	338	num_samples = g_variant_get_uint64(data);
	339	if (num_samples != 1024) {
	340	sr_err("Only 1024 samples are supported.");
	341	ret = SR_ERR_ARG;
	342	} else {
	343	devc->limit_samples = num_samples;
	344	sr_dbg("setting limit_samples to %i\n",
	345	num_samples);
	346	ret = SR_OK;
	347	}
	348	break;
	349	case SR_CONF_CAPTURE_RATIO:
	350	ret = SR_OK;
	351	break;
	352	case SR_CONF_TRIGGER_SLOPE:
	353	slope = g_variant_get_uint64(data);
	354	if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE) {
	355	sr_err("Invalid trigger slope");
	356	ret = SR_ERR_ARG;
	357	} else {
	358	devc->trigger_slope = slope;
	359	ret = SR_OK;
	360	}
	361	break;
	362	case SR_CONF_HORIZ_TRIGGERPOS:
	363	pos = g_variant_get_double(data);
	364	if (pos < 0 \|\| pos > 255) {
	365	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	366	ret = SR_ERR_ARG;
	367	} else {
	368	trigger_pos = (int)pos;
	369	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	370	ret = SR_OK;
	371	}
	372	break;
	373	case SR_CONF_RLE:
	374	ret = SR_OK;
	375	break;
	376	default:
	377	ret = SR_ERR_NA;
	378	break;
	379	}
	380
	381	return ret;
	382	}
	383
	384	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
	385	const struct sr_probe_group *probe_group)
	386	{
	387	GVariant *gvar;
	388	GVariantBuilder gvb;
	389
	390	(void)probe_group;
	391	(void)sdi;
	392
	393	switch (key) {
	394	case SR_CONF_DEVICE_OPTIONS:
	395	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	396	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	397	break;
	398	case SR_CONF_SAMPLERATE:
	399	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	400	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	401	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	402	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	403	*data = g_variant_builder_end(&gvb);
	404	break;
	405	case SR_CONF_TRIGGER_TYPE:
	406	*data = g_variant_new_string(TRIGGER_TYPE);
	407	break;
	408	default:
	409	return SR_ERR_NA;
	410	}
	411
	412	return SR_OK;
	413	}
	414
	415	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
	416	{
	417	struct dev_context *devc;
	418	int ret = SR_ERR;
	419
	420	if (sdi->status != SR_ST_ACTIVE)
	421	return SR_ERR_DEV_CLOSED;
	422
	423	devc = sdi->priv;
	424
	425	if (mso_configure_probes(sdi) != SR_OK) {
	426	sr_err("Failed to configure probes.");
	427	return SR_ERR;
	428	}
	429
	430	/* FIXME: No need to do full reconfigure every time */
	431	// ret = mso_reset_fsm(sdi);
	432	// if (ret != SR_OK)
	433	// return ret;
	434
	435	/* FIXME: ACDC Mode */
	436	devc->ctlbase1 &= 0x7f;
	437	// devc->ctlbase1 \|= devc->acdcmode;
	438
	439	ret = mso_configure_rate(sdi, devc->cur_rate);
	440	if (ret != SR_OK)
	441	return ret;
	442
	443	/* set dac offset */
	444	ret = mso_dac_out(sdi, devc->dac_offset);
	445	if (ret != SR_OK)
	446	return ret;
	447
	448	ret = mso_configure_threshold_level(sdi);
	449	if (ret != SR_OK)
	450	return ret;
	451
	452	ret = mso_configure_trigger(sdi);
	453	if (ret != SR_OK)
	454	return ret;
	455
	456	/* END of config hardware part */
	457	ret = mso_arm(sdi);
	458	if (ret != SR_OK)
	459	return ret;
	460
	461	/* Start acquisition on the device. */
	462	mso_check_trigger(devc->serial, &devc->trigger_state);
	463	ret = mso_check_trigger(devc->serial, NULL);
	464	if (ret != SR_OK)
	465	return ret;
	466
	467	/* Reset trigger state. */
	468	devc->trigger_state = 0x00;
	469
	470	/* Send header packet to the session bus. */
	471	std_session_send_df_header(cb_data, LOG_PREFIX);
	472
	473	/* Our first probe is analog, the other 8 are of type 'logic'. */
	474	/* TODO. */
	475
	476	sr_source_add(devc->serial->fd, G_IO_IN, -1, mso_receive_data, cb_data);
	477
	478	return SR_OK;
	479	}
	480
	481	/* This stops acquisition on ALL devices, ignoring dev_index. */
	482	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	483	{
	484	(void)cb_data;
	485
	486	stop_acquisition(sdi);
	487
	488	return SR_OK;
	489	}
	490
	491	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	492	.name = "link-mso19",
	493	.longname = "Link Instruments MSO-19",
	494	.api_version = 1,
	495	.init = init,
	496	.cleanup = cleanup,
	497	.scan = scan,
	498	.dev_list = dev_list,
	499	.dev_clear = dev_clear,
	500	.config_get = config_get,
	501	.config_set = config_set,
	502	.config_list = config_list,
	503	.dev_open = dev_open,
	504	.dev_close = dev_close,
	505	.dev_acquisition_start = dev_acquisition_start,
	506	.dev_acquisition_stop = dev_acquisition_stop,
	507	.priv = NULL,
	508	};