[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_HWCAP_LOGIC_ANALYZER,
	SR_HWCAP_SAMPLERATE,
  SR_HWCAP_TRIGGER_SLOPE, 
  SR_HWCAP_HORIZ_TRIGGERPOS,
//	SR_HWCAP_CAPTURE_RATIO,
	SR_HWCAP_LIMIT_SAMPLES,
//	SR_HWCAP_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] = {
	"0", "1", "2", "3", "4", "5", "6", "7", NULL
};

/*supported samplerates */
static const struct sr_samplerates samplerates = {
	SR_HZ(100),
	SR_MHZ(200),
	SR_HZ(100),
	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)
{
	struct drv_context *drvc;

	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
		sr_err("Driver context malloc failed.");
		return SR_ERR_MALLOC;
	}
	drvc->sr_ctx = sr_ctx;
	di->priv = drvc;

	return SR_OK;
}

static GSList *hw_scan(GSList *options)
{
  int i;

	(void)options;
	GSList *devices = NULL;

	const char* conn = NULL;
  const char* serialcomm = NULL;
  GSList *l;
	for (l = options; l; l = l->next) {
		struct sr_hwopt* opt = l->data;
		switch (opt->hwopt) {
		case SR_HWOPT_CONN:
			conn = opt->value;
			break;
		case SR_HWOPT_SERIALCOMM:
			serialcomm = opt->value;
			break;
		}
	}
	if (!conn)
    conn = SERIALCONN;
	if (serialcomm == NULL)
		serialcomm = SERIALCOMM;

	struct udev *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;
      if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, 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)
{
	struct drv_context *drvc;

	drvc = di->priv;

	return drvc->instances;
}

static int hw_dev_open(struct sr_dev_inst *sdi)
{
	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);

	int 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 hw_info_get(int info_id, const void **data,
       const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	switch (info_id) {
	case SR_DI_HWCAPS:
		*data = hwcaps;
		break;
	case SR_DI_NUM_PROBES:
		*data = GINT_TO_POINTER(1);
		break;
	case SR_DI_PROBE_NAMES:
		*data = mso19_probe_names;
		break;
	case SR_DI_SAMPLERATES:
		*data = &samplerates;
		break;
	case SR_DI_TRIGGER_TYPES:
		*data = (char *)TRIGGER_TYPES;
		break;
	case SR_DI_CUR_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 hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
		const void *value)
{
	int ret;

	struct dev_context *devc;
  devc = sdi->priv;

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

	switch (hwcap) {
	case SR_HWCAP_SAMPLERATE:
		return mso_configure_rate(sdi, *(const uint64_t *) value);
		ret = SR_OK;
		break;
	case SR_HWCAP_LIMIT_SAMPLES:
    {
      const uint64_t num_samples = *(const uint64_t *)value;
      if (num_samples < 1024)
      {
        sr_err("minimum of 1024 samples required");
        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_HWCAP_CAPTURE_RATIO:
    ret = SR_OK;
		break;
  case SR_HWCAP_TRIGGER_SLOPE:
    {
      const uint64_t slope = *(const 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_HWCAP_HORIZ_TRIGGERPOS:
    {
      const float pos = *(const float *)value;
      if (pos < 0 || pos > 255) {
        sr_err("Trigger position (%f) should be between 0 and 255.", pos);
        ret = SR_ERR_ARG;
      } else {
        int trigger_pos = (int)pos;
        devc->trigger_holdoff[0] = trigger_pos&0xff;
        ret = SR_OK;
      }
    }
    break;

	case SR_HWCAP_RLE:
    ret = SR_OK;
		break;
	default:
		ret = SR_ERR;
	}

	return ret;
}

static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
		void *cb_data)
{
	struct sr_datafeed_packet *packet;
	struct sr_datafeed_header *header;
	struct sr_datafeed_meta_logic meta;
	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;

  sr_source_add(devc->serial->fd, G_IO_IN, -1, mso_receive_data, cb_data);

	if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) {
		sr_err("Datafeed packet malloc failed.");
		return SR_ERR_MALLOC;
	}

	if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) {
		sr_err("Datafeed header malloc failed.");
		g_free(packet);
		return SR_ERR_MALLOC;
	}


	packet->type = SR_DF_HEADER;
	packet->payload = (unsigned char *)header;
	header->feed_version = 1;
	gettimeofday(&header->starttime, NULL);
	sr_session_send(cb_data, packet);

	packet->type = SR_DF_META_LOGIC;
	packet->payload = &meta;
	meta.samplerate = devc->cur_rate;
	meta.num_probes = NUM_PROBES;
	sr_session_send(cb_data, packet);
  
	g_free(header);
	g_free(packet);

	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)
{
	/* Avoid compiler warnings. */
	(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,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.info_get = hw_info_get,
	.dev_config_set = hw_dev_config_set,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
df92e5cf	1	/*
	2	* This file is part of the sigrok project.
	3	*
f48cef78 UH	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>
df92e5cf	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
df92e5cf	24	static const int hwcaps[] = {
	25	SR_HWCAP_LOGIC_ANALYZER,
	26	SR_HWCAP_SAMPLERATE,
087a9161	27	SR_HWCAP_TRIGGER_SLOPE,
087a9161	28	SR_HWCAP_HORIZ_TRIGGERPOS,
df92e5cf	29	// SR_HWCAP_CAPTURE_RATIO,
	30	SR_HWCAP_LIMIT_SAMPLES,
	31	// SR_HWCAP_RLE,
	32	0,
	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	"0", "1", "2", "3", "4", "5", "6", "7", NULL
	42	};
	43
	44	/supported samplerates /
	45	static const struct sr_samplerates samplerates = {
	46	SR_HZ(100),
df92e5cf	47	SR_MHZ(200),
5a24e89c	48	SR_HZ(100),
df92e5cf	49	NULL,
	50	};
	51
	52	SR_PRIV struct sr_dev_driver link_mso19_driver_info;
	53	static struct sr_dev_driver *di = &link_mso19_driver_info;
	54
	55	static int hw_init(struct sr_context *sr_ctx)
	56	{
df92e5cf	57	struct drv_context *drvc;
	58
	59	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
	60	sr_err("Driver context malloc failed.");
	61	return SR_ERR_MALLOC;
	62	}
	63	drvc->sr_ctx = sr_ctx;
	64	di->priv = drvc;
	65
	66	return SR_OK;
	67	}
	68
	69	static GSList hw_scan(GSList options)
	70	{
df92e5cf	71	int i;
	72
	73	(void)options;
	74	GSList *devices = NULL;
df92e5cf	75
	76	const char* conn = NULL;
	77	const char* serialcomm = NULL;
	78	GSList *l;
	79	for (l = options; l; l = l->next) {
	80	struct sr_hwopt* opt = l->data;
	81	switch (opt->hwopt) {
	82	case SR_HWOPT_CONN:
	83	conn = opt->value;
	84	break;
	85	case SR_HWOPT_SERIALCOMM:
	86	serialcomm = opt->value;
	87	break;
	88	}
	89	}
	90	if (!conn)
	91	conn = SERIALCONN;
	92	if (serialcomm == NULL)
	93	serialcomm = SERIALCOMM;
	94
	95	struct udev *udev = udev_new();
	96	if (!udev) {
	97	sr_err("Failed to initialize udev.");
	98	}
	99	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	100	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	101	udev_enumerate_scan_devices(enumerate);
	102	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	103	struct udev_list_entry *dev_list_entry;
	104	for (dev_list_entry = devs;
	105	dev_list_entry != NULL;
	106	dev_list_entry = udev_list_entry_get_next(dev_list_entry))
	107	{
	108	const char *syspath = udev_list_entry_get_name(dev_list_entry);
	109	struct udev_device *dev = udev_device_new_from_syspath(udev, syspath);
	110	const char *sysname = udev_device_get_sysname(dev);
	111	struct udev_device *parent = udev_device_get_parent_with_subsystem_devtype(
	112	dev, "usb", "usb_device");
	113
	114	if (!parent) {
	115	sr_err("Unable to find parent usb device for %s",
	116	sysname);
	117	continue;
	118	}
	119
	120	const char *idVendor = udev_device_get_sysattr_value(parent, "idVendor");
	121	const char *idProduct = udev_device_get_sysattr_value(parent, "idProduct");
	122	if (strcmp(USB_VENDOR, idVendor)
	123	\|\| strcmp(USB_PRODUCT, idProduct))
	124	continue;
	125
	126	const char* iSerial = udev_device_get_sysattr_value(parent, "serial");
	127	const char* iProduct = udev_device_get_sysattr_value(parent, "product");
	128
	129	char path[32];
	130	snprintf(path, sizeof(path), "/dev/%s", sysname);
5a24e89c	131	conn = path;
df92e5cf	132
	133	size_t s = strcspn(iProduct, " ");
	134	char product[32];
	135	char manufacturer[32];
	136	if (s > sizeof(product) \|\|
	137	strlen(iProduct) - s > sizeof(manufacturer)) {
	138	sr_err("Could not parse iProduct: %s.", iProduct);
	139	continue;
	140	}
	141	strncpy(product, iProduct, s);
	142	product[s] = 0;
4db2aaff	143	strcpy(manufacturer, iProduct + s + 1);
df92e5cf	144
	145	//Create the device context and set its params
	146	struct dev_context *devc;
	147	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	148	sr_err("Device context malloc failed.");
	149	return devices;
	150	}
	151
	152	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	153	sr_err("Invalid iSerial: %s.", iSerial);
	154	g_free(devc);
	155	return devices;
	156	}
	157
	158	char hwrev[32];
	159	sprintf(hwrev, "r%d", devc->hwrev);
	160	devc->ctlbase1 = 0;
	161	devc->protocol_trigger.spimode = 0;
	162	for (i = 0; i < 4; i++) {
	163	devc->protocol_trigger.word[i] = 0;
	164	devc->protocol_trigger.mask[i] = 0xff;
	165	}
	166
	167	if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm)))
	168	{
	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
df92e5cf	184	sdi->driver = di;
df92e5cf	185	sdi->priv = devc;
4db2aaff	186
	187	for (i = 0; i < NUM_PROBES; i++) {
	188	struct sr_probe *probe;
	189	if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
	190	mso19_probe_names[i])))
	191	return 0;
	192	sdi->probes = g_slist_append(sdi->probes, probe);
	193	}
	194
df92e5cf	195	//Add the driver
	196	struct drv_context *drvc = di->priv;
	197	drvc->instances = g_slist_append(drvc->instances, sdi);
	198	devices = g_slist_append(devices, sdi);
	199	}
5a24e89c	200
df92e5cf	201	return devices;
	202	}
	203
	204	static GSList *hw_dev_list(void)
	205	{
df92e5cf	206	struct drv_context *drvc;
	207
	208	drvc = di->priv;
	209
	210	return drvc->instances;
	211	}
	212
	213	static int hw_dev_open(struct sr_dev_inst *sdi)
	214	{
df92e5cf	215	struct dev_context *devc;
	216
	217	devc = sdi->priv;
	218
	219	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	220	return SR_ERR;
	221
	222	sdi->status = SR_ST_ACTIVE;
	223
	224	/* FIXME: discard serial buffer */
	225	mso_check_trigger(devc->serial, &devc->trigger_state);
	226	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	227
	228	int ret = mso_reset_adc(sdi);
	229	if (ret != SR_OK)
	230	return ret;
	231
	232	mso_check_trigger(devc->serial, &devc->trigger_state);
	233	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	234
	235	// ret = mso_reset_fsm(sdi);
	236	// if (ret != SR_OK)
	237	// return ret;
	238	// return SR_ERR;
	239
	240	return SR_OK;
	241	}
	242
	243	static int hw_dev_close(struct sr_dev_inst *sdi)
	244	{
df92e5cf	245	struct dev_context *devc;
	246
	247	devc = sdi->priv;
	248
	249	if (devc->serial && devc->serial->fd != -1) {
	250	serial_close(devc->serial);
	251	sdi->status = SR_ST_INACTIVE;
	252	}
	253
	254	return SR_OK;
	255	}
	256
	257	static int hw_cleanup(void)
	258	{
df92e5cf	259	GSList *l;
	260	struct sr_dev_inst *sdi;
	261	struct drv_context *drvc;
	262	struct dev_context *devc;
	263	int ret = SR_OK;
	264
	265	if (!(drvc = di->priv))
	266	return SR_OK;
	267
	268	/* Properly close and free all devices. */
	269	for (l = drvc->instances; l; l = l->next) {
	270	if (!(sdi = l->data)) {
	271	/* Log error, but continue cleaning up the rest. */
	272	sr_err("%s: sdi was NULL, continuing", __func__);
	273	ret = SR_ERR_BUG;
	274	continue;
	275	}
	276	if (!(devc = sdi->priv)) {
	277	/* Log error, but continue cleaning up the rest. */
	278	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	279	ret = SR_ERR_BUG;
	280	continue;
	281	}
	282	hw_dev_close(sdi);
	283	sr_serial_dev_inst_free(devc->serial);
	284	sr_dev_inst_free(sdi);
	285	}
	286	g_slist_free(drvc->instances);
	287	drvc->instances = NULL;
	288
	289	return ret;
	290	}
	291
	292	static int hw_info_get(int info_id, const void **data,
	293	const struct sr_dev_inst *sdi)
	294	{
	295	struct dev_context *devc;
	296
df92e5cf	297	switch (info_id) {
	298	case SR_DI_HWCAPS:
	299	*data = hwcaps;
	300	break;
	301	case SR_DI_NUM_PROBES:
	302	*data = GINT_TO_POINTER(1);
	303	break;
	304	case SR_DI_PROBE_NAMES:
	305	*data = mso19_probe_names;
	306	break;
	307	case SR_DI_SAMPLERATES:
	308	*data = &samplerates;
	309	break;
	310	case SR_DI_TRIGGER_TYPES:
	311	data = (char )TRIGGER_TYPES;
	312	break;
	313	case SR_DI_CUR_SAMPLERATE:
	314	if (sdi) {
	315	devc = sdi->priv;
	316	*data = &devc->cur_rate;
	317	} else
	318	return SR_ERR;
	319	break;
	320	default:
	321	return SR_ERR_ARG;
	322	}
	323
	324	return SR_OK;
	325	}
	326
	327	static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
	328	const void *value)
	329	{
df92e5cf	330	int ret;
df92e5cf	331
087a9161	332	struct dev_context *devc;
	333	devc = sdi->priv;
	334
df92e5cf	335	if (sdi->status != SR_ST_ACTIVE)
	336	return SR_ERR;
	337
	338	switch (hwcap) {
	339	case SR_HWCAP_SAMPLERATE:
	340	return mso_configure_rate(sdi, (const uint64_t ) value);
	341	ret = SR_OK;
	342	break;
	343	case SR_HWCAP_LIMIT_SAMPLES:
eb913174	344	{
	345	const uint64_t num_samples = (const uint64_t )value;
	346	if (num_samples < 1024)
	347	{
	348	sr_err("minimum of 1024 samples required");
	349	ret = SR_ERR_ARG;
	350
	351	} else {
	352	devc->limit_samples = num_samples;
	353	sr_dbg("setting limit_samples to %i\n", num_samples);
	354	ret = SR_OK;
	355	}
	356	}
df92e5cf	357	break;
	358	case SR_HWCAP_CAPTURE_RATIO:
	359	ret = SR_OK;
	360	break;
087a9161	361	case SR_HWCAP_TRIGGER_SLOPE:
087a9161	362	{
eb913174	363	const uint64_t slope = (const uint64_t )value;
087a9161	364	if (slope != SLOPE_NEGATIVE && slope != SLOPE_POSITIVE)
	365	{
	366	sr_err("Invalid trigger slope");
	367	ret = SR_ERR_ARG;
	368	} else {
	369	devc->trigger_slope = slope;
	370	ret = SR_OK;
	371	}
	372	}
	373	break;
	374	case SR_HWCAP_HORIZ_TRIGGERPOS:
	375	{
eb913174	376	const float pos = (const float )value;
087a9161	377	if (pos < 0 \|\| pos > 255) {
	378	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	379	ret = SR_ERR_ARG;
	380	} else {
	381	int trigger_pos = (int)pos;
087a9161	382	devc->trigger_holdoff[0] = trigger_pos&0xff;
	383	ret = SR_OK;
	384	}
	385	}
	386	break;
	387
df92e5cf	388	case SR_HWCAP_RLE:
	389	ret = SR_OK;
	390	break;
	391	default:
	392	ret = SR_ERR;
	393	}
	394
	395	return ret;
	396	}
	397
	398	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	399	void *cb_data)
	400	{
	401	struct sr_datafeed_packet *packet;
	402	struct sr_datafeed_header *header;
	403	struct sr_datafeed_meta_logic meta;
	404	struct dev_context *devc;
df92e5cf	405	int ret = SR_ERR;
	406
	407
df92e5cf	408	devc = sdi->priv;
	409
	410	if (sdi->status != SR_ST_ACTIVE)
	411	return SR_ERR;
	412
5a24e89c	413	if (mso_configure_probes(sdi) != SR_OK) {
	414	sr_err("Failed to configure probes.");
	415	return SR_ERR;
	416	}
df92e5cf	417
df92e5cf	418	/* FIXME: No need to do full reconfigure every time */
	419	// ret = mso_reset_fsm(sdi);
	420	// if (ret != SR_OK)
	421	// return ret;
	422
	423	/* FIXME: ACDC Mode */
	424	devc->ctlbase1 &= 0x7f;
	425	// devc->ctlbase1 \|= devc->acdcmode;
	426
	427	ret = mso_configure_rate(sdi, devc->cur_rate);
	428	if (ret != SR_OK)
	429	return ret;
	430
	431	/* set dac offset */
	432	ret = mso_dac_out(sdi, devc->dac_offset);
	433	if (ret != SR_OK)
	434	return ret;
	435
	436	ret = mso_configure_threshold_level(sdi);
	437	if (ret != SR_OK)
	438	return ret;
	439
087a9161	440
df92e5cf	441	ret = mso_configure_trigger(sdi);
	442	if (ret != SR_OK)
	443	return ret;
	444
df92e5cf	445
df92e5cf	446	/* END of config hardware part */
087a9161	447	ret = mso_arm(sdi);
	448	if (ret != SR_OK)
	449	return ret;
df92e5cf	450
df92e5cf	451	/* Start acquisition on the device. */
4db2aaff	452	mso_check_trigger(devc->serial, &devc->trigger_state);
4db2aaff	453	ret = mso_check_trigger(devc->serial, NULL);
df92e5cf	454	if (ret != SR_OK)
	455	return ret;
	456
	457	sr_source_add(devc->serial->fd, G_IO_IN, -1, mso_receive_data, cb_data);
	458
	459	if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) {
	460	sr_err("Datafeed packet malloc failed.");
	461	return SR_ERR_MALLOC;
	462	}
	463
	464	if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) {
	465	sr_err("Datafeed header malloc failed.");
	466	g_free(packet);
	467	return SR_ERR_MALLOC;
	468	}
	469
eb913174	470
df92e5cf	471	packet->type = SR_DF_HEADER;
	472	packet->payload = (unsigned char *)header;
	473	header->feed_version = 1;
	474	gettimeofday(&header->starttime, NULL);
	475	sr_session_send(cb_data, packet);
	476
	477	packet->type = SR_DF_META_LOGIC;
	478	packet->payload = &meta;
	479	meta.samplerate = devc->cur_rate;
	480	meta.num_probes = NUM_PROBES;
	481	sr_session_send(cb_data, packet);
	482
	483	g_free(header);
	484	g_free(packet);
	485
	486	return SR_OK;
	487	}
	488
087a9161	489	/* This stops acquisition on ALL devices, ignoring dev_index. */
df92e5cf	490	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
df92e5cf	491	{
df92e5cf	492	/* Avoid compiler warnings. */
	493	(void)cb_data;
	494
	495	stop_acquisition(sdi);
	496
	497	return SR_OK;
	498	}
	499
	500	SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
	501	.name = "link-mso19",
	502	.longname = "Link Instruments MSO-19",
	503	.api_version = 1,
	504	.init = hw_init,
	505	.cleanup = hw_cleanup,
	506	.scan = hw_scan,
	507	.dev_list = hw_dev_list,
	508	.dev_clear = hw_cleanup,
	509	.dev_open = hw_dev_open,
	510	.dev_close = hw_dev_close,
	511	.info_get = hw_info_get,
	512	.dev_config_set = hw_dev_config_set,
	513	.dev_acquisition_start = hw_dev_acquisition_start,
	514	.dev_acquisition_stop = hw_dev_acquisition_stop,
	515	.priv = NULL,
	516	};