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

/*
 * This file is part of the sigrok 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 int 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,
	0,
};

/*
 * 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 struct sr_samplerates samplerates = {
	.low  = SR_HZ(100),
	.high = SR_MHZ(200),
	.step = SR_HZ(100),
	.list = NULL,
};

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

static int hw_init(struct sr_context *sr_ctx)
{
	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
}

static GSList *hw_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;

	(void)options;

	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = src->value;
			break;
		case SR_CONF_SERIALCOMM:
			serialcomm = src->value;
			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 *hw_dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

static int hw_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 hw_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 hw_cleanup(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;
		}
		hw_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 config_get(int id, const void **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

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

	return SR_OK;
}

static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
{
	int ret;
	struct dev_context *devc;
	uint64_t num_samples, slope;
	int trigger_pos;
	float pos;

	devc = sdi->priv;

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

	switch (id) {
	case SR_CONF_SAMPLERATE:
		// FIXME
		return mso_configure_rate(sdi, *(const uint64_t *)value);
		ret = SR_OK;
		break;
	case SR_CONF_LIMIT_SAMPLES:
		num_samples = *(uint64_t *)value;
		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 = *(uint64_t *)value;
		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 = *(float *)value;
		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;
		break;
	}

	return ret;
}

static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
{

	(void)sdi;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = hwcaps;
		break;
	case SR_CONF_SAMPLERATE:
		*data = &samplerates;
		break;
	case SR_CONF_TRIGGER_TYPE:
		*data = (char *)TRIGGER_TYPE;
		break;
	default:
		return SR_ERR_ARG;
	}

	return SR_OK;
}

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

	devc = sdi->priv;

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

	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, DRIVER_LOG_DOMAIN);

	/* 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 hw_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 = hw_init,
	.cleanup = hw_cleanup,
	.scan = hw_scan,
	.dev_list = hw_dev_list,
	.dev_clear = hw_cleanup,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the sigrok 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 int 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	0,
	34	};
	35
	36	/*
	37	* Probes are numbered 0 to 7.
	38	*
	39	* See also: http://www.linkinstruments.com/images/mso19_1113.gif
	40	*/
	41	SR_PRIV const char *mso19_probe_names[NUM_PROBES + 1] = {
	42	/* Note: DSO needs to be first. */
	43	"DSO", "0", "1", "2", "3", "4", "5", "6", "7", NULL,
	44	};
	45
	46	static const struct sr_samplerates samplerates = {
	47	.low = SR_HZ(100),
	48	.high = SR_MHZ(200),
	49	.step = SR_HZ(100),
	50	.list = NULL,
	51	};
	52
	53	SR_PRIV struct sr_dev_driver link_mso19_driver_info;
	54	static struct sr_dev_driver *di = &link_mso19_driver_info;
	55
	56	static int hw_init(struct sr_context *sr_ctx)
	57	{
	58	return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
	59	}
	60
	61	static GSList hw_scan(GSList options)
	62	{
	63	int i;
	64	GSList *devices = NULL;
	65	const char *conn = NULL;
	66	const char *serialcomm = NULL;
	67	GSList *l;
	68	struct sr_config *src;
	69	struct udev *udev;
	70	int ptype;
	71
	72	(void)options;
	73
	74	for (l = options; l; l = l->next) {
	75	src = l->data;
	76	switch (src->key) {
	77	case SR_CONF_CONN:
	78	conn = src->value;
	79	break;
	80	case SR_CONF_SERIALCOMM:
	81	serialcomm = src->value;
	82	break;
	83	}
	84	}
	85	if (!conn)
	86	conn = SERIALCONN;
	87	if (serialcomm == NULL)
	88	serialcomm = SERIALCOMM;
	89
	90	udev = udev_new();
	91	if (!udev) {
	92	sr_err("Failed to initialize udev.");
	93	}
	94
	95	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	96	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	97	udev_enumerate_scan_devices(enumerate);
	98	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	99	struct udev_list_entry *dev_list_entry;
	100	for (dev_list_entry = devs;
	101	dev_list_entry != NULL;
	102	dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
	103	const char *syspath = udev_list_entry_get_name(dev_list_entry);
	104	struct udev_device *dev =
	105	udev_device_new_from_syspath(udev, syspath);
	106	const char *sysname = udev_device_get_sysname(dev);
	107	struct udev_device *parent =
	108	udev_device_get_parent_with_subsystem_devtype(dev, "usb",
	109	"usb_device");
	110
	111	if (!parent) {
	112	sr_err("Unable to find parent usb device for %s",
	113	sysname);
	114	continue;
	115	}
	116
	117	const char *idVendor =
	118	udev_device_get_sysattr_value(parent, "idVendor");
	119	const char *idProduct =
	120	udev_device_get_sysattr_value(parent, "idProduct");
	121	if (strcmp(USB_VENDOR, idVendor)
	122	\|\| strcmp(USB_PRODUCT, idProduct))
	123	continue;
	124
	125	const char *iSerial =
	126	udev_device_get_sysattr_value(parent, "serial");
	127	const char *iProduct =
	128	udev_device_get_sysattr_value(parent, "product");
	129
	130	char path[32];
	131	snprintf(path, sizeof(path), "/dev/%s", sysname);
	132	conn = path;
	133
	134	size_t s = strcspn(iProduct, " ");
	135	char product[32];
	136	char manufacturer[32];
	137	if (s > sizeof(product) \|\|
	138	strlen(iProduct) - s > sizeof(manufacturer)) {
	139	sr_err("Could not parse iProduct: %s.", iProduct);
	140	continue;
	141	}
	142	strncpy(product, iProduct, s);
	143	product[s] = 0;
	144	strcpy(manufacturer, iProduct + s + 1);
	145
	146	//Create the device context and set its params
	147	struct dev_context *devc;
	148	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	149	sr_err("Device context malloc failed.");
	150	return devices;
	151	}
	152
	153	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	154	sr_err("Invalid iSerial: %s.", iSerial);
	155	g_free(devc);
	156	return devices;
	157	}
	158
	159	char hwrev[32];
	160	sprintf(hwrev, "r%d", devc->hwrev);
	161	devc->ctlbase1 = 0;
	162	devc->protocol_trigger.spimode = 0;
	163	for (i = 0; i < 4; i++) {
	164	devc->protocol_trigger.word[i] = 0;
	165	devc->protocol_trigger.mask[i] = 0xff;
	166	}
	167
	168	if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) {
	169	g_free(devc);
	170	return devices;
	171	}
	172
	173	struct sr_dev_inst *sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
	174	manufacturer, product, hwrev);
	175
	176	if (!sdi) {
	177	sr_err("Unable to create device instance for %s",
	178	sysname);
	179	sr_dev_inst_free(sdi);
	180	g_free(devc);
	181	return devices;
	182	}
	183
	184	sdi->driver = di;
	185	sdi->priv = devc;
	186
	187	for (i = 0; i < NUM_PROBES; i++) {
	188	struct sr_probe *probe;
	189	ptype = (i == 0) ? SR_PROBE_ANALOG : SR_PROBE_LOGIC;
	190	if (!(probe = sr_probe_new(i, ptype, TRUE,
	191	mso19_probe_names[i])))
	192	return 0;
	193	sdi->probes = g_slist_append(sdi->probes, probe);
	194	}
	195
	196	//Add the driver
	197	struct drv_context *drvc = di->priv;
	198	drvc->instances = g_slist_append(drvc->instances, sdi);
	199	devices = g_slist_append(devices, sdi);
	200	}
	201
	202	return devices;
	203	}
	204
	205	static GSList *hw_dev_list(void)
	206	{
	207	return ((struct drv_context *)(di->priv))->instances;
	208	}
	209
	210	static int hw_dev_open(struct sr_dev_inst *sdi)
	211	{
	212	int ret;
	213	struct dev_context *devc;
	214
	215	devc = sdi->priv;
	216
	217	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	218	return SR_ERR;
	219
	220	sdi->status = SR_ST_ACTIVE;
	221
	222	/* FIXME: discard serial buffer */
	223	mso_check_trigger(devc->serial, &devc->trigger_state);
	224	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	225
	226	ret = mso_reset_adc(sdi);
	227	if (ret != SR_OK)
	228	return ret;
	229
	230	mso_check_trigger(devc->serial, &devc->trigger_state);
	231	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	232
	233	// ret = mso_reset_fsm(sdi);
	234	// if (ret != SR_OK)
	235	// return ret;
	236	// return SR_ERR;
	237
	238	return SR_OK;
	239	}
	240
	241	static int hw_dev_close(struct sr_dev_inst *sdi)
	242	{
	243	struct dev_context *devc;
	244
	245	devc = sdi->priv;
	246
	247	if (devc->serial && devc->serial->fd != -1) {
	248	serial_close(devc->serial);
	249	sdi->status = SR_ST_INACTIVE;
	250	}
	251
	252	return SR_OK;
	253	}
	254
	255	static int hw_cleanup(void)
	256	{
	257	GSList *l;
	258	struct sr_dev_inst *sdi;
	259	struct drv_context *drvc;
	260	struct dev_context *devc;
	261	int ret = SR_OK;
	262
	263	if (!(drvc = di->priv))
	264	return SR_OK;
	265
	266	/* Properly close and free all devices. */
	267	for (l = drvc->instances; l; l = l->next) {
	268	if (!(sdi = l->data)) {
	269	/* Log error, but continue cleaning up the rest. */
	270	sr_err("%s: sdi was NULL, continuing", __func__);
	271	ret = SR_ERR_BUG;
	272	continue;
	273	}
	274	if (!(devc = sdi->priv)) {
	275	/* Log error, but continue cleaning up the rest. */
	276	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	277	ret = SR_ERR_BUG;
	278	continue;
	279	}
	280	hw_dev_close(sdi);
	281	sr_serial_dev_inst_free(devc->serial);
	282	sr_dev_inst_free(sdi);
	283	}
	284	g_slist_free(drvc->instances);
	285	drvc->instances = NULL;
	286
	287	return ret;
	288	}
	289
	290	static int config_get(int id, const void *data, const struct sr_dev_inst sdi)
	291	{
	292	struct dev_context *devc;
	293
	294	switch (id) {
	295	case SR_CONF_SAMPLERATE:
	296	if (sdi) {
	297	devc = sdi->priv;
	298	*data = &devc->cur_rate;
	299	} else
	300	return SR_ERR;
	301	break;
	302	default:
	303	return SR_ERR_ARG;
	304	}
	305
	306	return SR_OK;
	307	}
	308
	309	static int config_set(int id, const void value, const struct sr_dev_inst sdi)
	310	{
	311	int ret;
	312	struct dev_context *devc;
	313	uint64_t num_samples, slope;
	314	int trigger_pos;
	315	float pos;
	316
	317	devc = sdi->priv;
	318
	319	if (sdi->status != SR_ST_ACTIVE)
	320	return SR_ERR;
	321
	322	switch (id) {
	323	case SR_CONF_SAMPLERATE:
	324	// FIXME
	325	return mso_configure_rate(sdi, (const uint64_t )value);
	326	ret = SR_OK;
	327	break;
	328	case SR_CONF_LIMIT_SAMPLES:
	329	num_samples = (uint64_t )value;
	330	if (num_samples != 1024) {
	331	sr_err("Only 1024 samples are supported.");
	332	ret = SR_ERR_ARG;
	333	} else {
	334	devc->limit_samples = num_samples;
	335	sr_dbg("setting limit_samples to %i\n",
	336	num_samples);
	337	ret = SR_OK;
	338	}
	339	break;
	340	case SR_CONF_CAPTURE_RATIO:
	341	ret = SR_OK;
	342	break;
	343	case SR_CONF_TRIGGER_SLOPE:
	344	slope = (uint64_t )value;
	345	if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE) {
	346	sr_err("Invalid trigger slope");
	347	ret = SR_ERR_ARG;
	348	} else {
	349	devc->trigger_slope = slope;
	350	ret = SR_OK;
	351	}
	352	break;
	353	case SR_CONF_HORIZ_TRIGGERPOS:
	354	pos = (float )value;
	355	if (pos < 0 \|\| pos > 255) {
	356	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	357	ret = SR_ERR_ARG;
	358	} else {
	359	trigger_pos = (int)pos;
	360	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	361	ret = SR_OK;
	362	}
	363	break;
	364	case SR_CONF_RLE:
	365	ret = SR_OK;
	366	break;
	367	default:
	368	ret = SR_ERR;
	369	break;
	370	}
	371
	372	return ret;
	373	}
	374
	375	static int config_list(int key, const void *data, const struct sr_dev_inst sdi)
	376	{
	377
	378	(void)sdi;
	379
	380	switch (key) {
	381	case SR_CONF_DEVICE_OPTIONS:
	382	*data = hwcaps;
	383	break;
	384	case SR_CONF_SAMPLERATE:
	385	*data = &samplerates;
	386	break;
	387	case SR_CONF_TRIGGER_TYPE:
	388	data = (char )TRIGGER_TYPE;
	389	break;
	390	default:
	391	return SR_ERR_ARG;
	392	}
	393
	394	return SR_OK;
	395	}
	396
	397	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	398	void *cb_data)
	399	{
	400	struct dev_context *devc;
	401	int ret = SR_ERR;
	402
	403	devc = sdi->priv;
	404
	405	if (sdi->status != SR_ST_ACTIVE)
	406	return SR_ERR;
	407
	408	if (mso_configure_probes(sdi) != SR_OK) {
	409	sr_err("Failed to configure probes.");
	410	return SR_ERR;
	411	}
	412
	413	/* FIXME: No need to do full reconfigure every time */
	414	// ret = mso_reset_fsm(sdi);
	415	// if (ret != SR_OK)
	416	// return ret;
	417
	418	/* FIXME: ACDC Mode */
	419	devc->ctlbase1 &= 0x7f;
	420	// devc->ctlbase1 \|= devc->acdcmode;
	421
	422	ret = mso_configure_rate(sdi, devc->cur_rate);
	423	if (ret != SR_OK)
	424	return ret;
	425
	426	/* set dac offset */
	427	ret = mso_dac_out(sdi, devc->dac_offset);
	428	if (ret != SR_OK)
	429	return ret;
	430
	431	ret = mso_configure_threshold_level(sdi);
	432	if (ret != SR_OK)
	433	return ret;
	434
	435	ret = mso_configure_trigger(sdi);
	436	if (ret != SR_OK)
	437	return ret;
	438
	439	/* END of config hardware part */
	440	ret = mso_arm(sdi);
	441	if (ret != SR_OK)
	442	return ret;
	443
	444	/* Start acquisition on the device. */
	445	mso_check_trigger(devc->serial, &devc->trigger_state);
	446	ret = mso_check_trigger(devc->serial, NULL);
	447	if (ret != SR_OK)
	448	return ret;
	449
	450	/* Reset trigger state. */
	451	devc->trigger_state = 0x00;
	452
	453	/* Send header packet to the session bus. */
	454	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	455
	456	/* Our first probe is analog, the other 8 are of type 'logic'. */
	457	/* TODO. */
	458
	459	sr_source_add(devc->serial->fd, G_IO_IN, -1, mso_receive_data, cb_data);
	460
	461	return SR_OK;
	462	}
	463
	464	/* This stops acquisition on ALL devices, ignoring dev_index. */
	465	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	466	{
	467	(void)cb_data;
	468
	469	stop_acquisition(sdi);
	470
	471	return SR_OK;
	472	}
	473
	474	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	475	.name = "link-mso19",
	476	.longname = "Link Instruments MSO-19",
	477	.api_version = 1,
	478	.init = hw_init,
	479	.cleanup = hw_cleanup,
	480	.scan = hw_scan,
	481	.dev_list = hw_dev_list,
	482	.dev_clear = hw_cleanup,
	483	.config_get = config_get,
	484	.config_set = config_set,
	485	.config_list = config_list,
	486	.dev_open = hw_dev_open,
	487	.dev_close = hw_dev_close,
	488	.dev_acquisition_start = hw_dev_acquisition_start,
	489	.dev_acquisition_stop = hw_dev_acquisition_stop,
	490	.priv = NULL,
	491	};