[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),
};

/* 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;
}

static 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,
};
SR_REGISTER_DEV_DRIVER(link_mso19_driver_info);
Commit	Line	Data
df92e5cf	1	/*
50985c20	2	* This file is part of the libsigrok project.
df92e5cf	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
6ec6c43b	22	#include <config.h>
df92e5cf	23	#include "protocol.h"
df92e5cf	24
f254bc4b	25	static const uint32_t devopts[] = {
365f04d6	26	SR_CONF_OSCILLOSCOPE,
1953564a	27	SR_CONF_LOGIC_ANALYZER,
5827f61b BV	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,
df92e5cf	35	};
	36
	37	/*
ba7dd8bb	38	* Channels are numbered 0 to 7.
df92e5cf	39	*
	40	* See also: http://www.linkinstruments.com/images/mso19_1113.gif
	41	*/
0f34cb47	42	static const char *channel_names[] = {
365f04d6	43	/* Note: DSO needs to be first. */
0f34cb47	44	"DSO", "0", "1", "2", "3", "4", "5", "6", "7",
df92e5cf	45	};
df92e5cf	46
a9ed6877 BV	47	static const uint64_t samplerates[] = {
	48	SR_HZ(100),
	49	SR_MHZ(200),
	50	SR_HZ(100),
df92e5cf	51	};
df92e5cf	52
eea49cf1	53	/* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
4f840ce9	54	static int dev_clear(const struct sr_dev_driver *di)
eea49cf1	55	{
efa98402	56	struct drv_context *drvc = di->context;
eea49cf1 UH	57	GSList *l;
eea49cf1 UH	58	struct sr_dev_inst *sdi;
eea49cf1 UH	59	struct dev_context *devc;
	60	int ret = SR_OK;
	61
eea49cf1 UH	62	/* Properly close and free all devices. */
	63	for (l = drvc->instances; l; l = l->next) {
	64	if (!(sdi = l->data)) {
	65	/* Log error, but continue cleaning up the rest. */
	66	sr_err("%s: sdi was NULL, continuing", __func__);
	67	ret = SR_ERR_BUG;
	68	continue;
	69	}
	70	if (!(devc = sdi->priv)) {
	71	/* Log error, but continue cleaning up the rest. */
	72	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	73	ret = SR_ERR_BUG;
	74	continue;
	75	}
bf2c987f	76	std_serial_dev_close(sdi);
eea49cf1 UH	77	sr_serial_dev_inst_free(devc->serial);
	78	sr_dev_inst_free(sdi);
	79	}
	80	g_slist_free(drvc->instances);
	81	drvc->instances = NULL;
	82
	83	return ret;
	84	}
	85
4f840ce9	86	static GSList scan(struct sr_dev_driver di, GSList *options)
df92e5cf	87	{
00b44ccb UH	88	int i;
	89	GSList *devices = NULL;
	90	const char *conn = NULL;
	91	const char *serialcomm = NULL;
	92	GSList *l;
1987b8d6	93	struct sr_config *src;
00b44ccb	94	struct udev *udev;
fca75cbb	95	int chtype;
df92e5cf	96
df92e5cf	97	for (l = options; l; l = l->next) {
1987b8d6 BV	98	src = l->data;
1987b8d6 BV	99	switch (src->key) {
1953564a	100	case SR_CONF_CONN:
a9ed6877	101	conn = g_variant_get_string(src->data, NULL);
df92e5cf	102	break;
1953564a	103	case SR_CONF_SERIALCOMM:
06c45a66	104	serialcomm = g_variant_get_string(src->data, NULL);
df92e5cf	105	break;
	106	}
	107	}
	108	if (!conn)
00b44ccb	109	conn = SERIALCONN;
98fec29e	110	if (!serialcomm)
df92e5cf	111	serialcomm = SERIALCOMM;
df92e5cf	112
00b44ccb	113	udev = udev_new();
df92e5cf	114	if (!udev) {
	115	sr_err("Failed to initialize udev.");
	116	}
00b44ccb	117
df92e5cf	118	struct udev_enumerate *enumerate = udev_enumerate_new(udev);
	119	udev_enumerate_add_match_subsystem(enumerate, "usb-serial");
	120	udev_enumerate_scan_devices(enumerate);
	121	struct udev_list_entry *devs = udev_enumerate_get_list_entry(enumerate);
	122	struct udev_list_entry *dev_list_entry;
00b44ccb UH	123	for (dev_list_entry = devs;
	124	dev_list_entry != NULL;
	125	dev_list_entry = udev_list_entry_get_next(dev_list_entry)) {
df92e5cf	126	const char *syspath = udev_list_entry_get_name(dev_list_entry);
00b44ccb UH	127	struct udev_device *dev =
00b44ccb UH	128	udev_device_new_from_syspath(udev, syspath);
df92e5cf	129	const char *sysname = udev_device_get_sysname(dev);
00b44ccb UH	130	struct udev_device *parent =
	131	udev_device_get_parent_with_subsystem_devtype(dev, "usb",
	132	"usb_device");
df92e5cf	133
	134	if (!parent) {
	135	sr_err("Unable to find parent usb device for %s",
	136	sysname);
	137	continue;
	138	}
	139
00b44ccb UH	140	const char *idVendor =
	141	udev_device_get_sysattr_value(parent, "idVendor");
	142	const char *idProduct =
	143	udev_device_get_sysattr_value(parent, "idProduct");
df92e5cf	144	if (strcmp(USB_VENDOR, idVendor)
00b44ccb	145	\|\| strcmp(USB_PRODUCT, idProduct))
df92e5cf	146	continue;
df92e5cf	147
00b44ccb UH	148	const char *iSerial =
	149	udev_device_get_sysattr_value(parent, "serial");
	150	const char *iProduct =
	151	udev_device_get_sysattr_value(parent, "product");
df92e5cf	152
00b44ccb	153	char path[32];
df92e5cf	154	snprintf(path, sizeof(path), "/dev/%s", sysname);
00b44ccb	155	conn = path;
df92e5cf	156
df92e5cf	157	size_t s = strcspn(iProduct, " ");
00b44ccb UH	158	char product[32];
00b44ccb UH	159	char manufacturer[32];
df92e5cf	160	if (s > sizeof(product) \|\|
00b44ccb UH	161	strlen(iProduct) - s > sizeof(manufacturer)) {
00b44ccb UH	162	sr_err("Could not parse iProduct: %s.", iProduct);
df92e5cf	163	continue;
	164	}
	165	strncpy(product, iProduct, s);
	166	product[s] = 0;
4db2aaff	167	strcpy(manufacturer, iProduct + s + 1);
00b44ccb UH	168
	169	//Create the device context and set its params
	170	struct dev_context *devc;
f57d8ffe	171	devc = g_malloc0(sizeof(struct dev_context));
00b44ccb UH	172
	173	if (mso_parse_serial(iSerial, iProduct, devc) != SR_OK) {
	174	sr_err("Invalid iSerial: %s.", iSerial);
	175	g_free(devc);
	176	return devices;
	177	}
	178
	179	char hwrev[32];
	180	sprintf(hwrev, "r%d", devc->hwrev);
	181	devc->ctlbase1 = 0;
	182	devc->protocol_trigger.spimode = 0;
	183	for (i = 0; i < 4; i++) {
	184	devc->protocol_trigger.word[i] = 0;
	185	devc->protocol_trigger.mask[i] = 0xff;
	186	}
	187
91219afc	188	devc->serial = sr_serial_dev_inst_new(conn, serialcomm);
00b44ccb	189
aac29cc1 UH	190	struct sr_dev_inst *sdi = g_malloc0(sizeof(struct sr_dev_inst));
	191	sdi->status = SR_ST_INACTIVE;
	192	sdi->vendor = g_strdup(manufacturer);
	193	sdi->model = g_strdup(product);
	194	sdi->version = g_strdup(hwrev);
00b44ccb UH	195
	196	if (!sdi) {
	197	sr_err("Unable to create device instance for %s",
	198	sysname);
	199	sr_dev_inst_free(sdi);
	200	g_free(devc);
	201	return devices;
	202	}
	203
	204	sdi->driver = di;
	205	sdi->priv = devc;
	206
07962655	207	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
fca75cbb	208	chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
0f34cb47	209	sr_channel_new(sdi, i, chtype, TRUE, channel_names[i]);
00b44ccb UH	210	}
	211
	212	//Add the driver
41812aca	213	struct drv_context *drvc = di->context;
00b44ccb UH	214	drvc->instances = g_slist_append(drvc->instances, sdi);
	215	devices = g_slist_append(devices, sdi);
	216	}
5a24e89c	217
df92e5cf	218	return devices;
	219	}
	220
6078d2c9	221	static int dev_open(struct sr_dev_inst *sdi)
df92e5cf	222	{
00b44ccb	223	int ret;
df92e5cf	224	struct dev_context *devc;
	225
	226	devc = sdi->priv;
	227
	228	if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK)
	229	return SR_ERR;
	230
	231	sdi->status = SR_ST_ACTIVE;
	232
	233	/* FIXME: discard serial buffer */
	234	mso_check_trigger(devc->serial, &devc->trigger_state);
	235	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	236
00b44ccb	237	ret = mso_reset_adc(sdi);
df92e5cf	238	if (ret != SR_OK)
	239	return ret;
	240
	241	mso_check_trigger(devc->serial, &devc->trigger_state);
	242	sr_dbg("Trigger state: 0x%x.", devc->trigger_state);
	243
00b44ccb UH	244	// ret = mso_reset_fsm(sdi);
	245	// if (ret != SR_OK)
	246	// return ret;
	247	// return SR_ERR;
df92e5cf	248
	249	return SR_OK;
	250	}
	251
2ea67fc9	252	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	253	const struct sr_channel_group *cg)
df92e5cf	254	{
	255	struct dev_context *devc;
	256
53b4680f	257	(void)cg;
8f996b89	258
709468ba UH	259	if (!sdi)
	260	return SR_ERR_ARG;
	261
	262	devc = sdi->priv;
	263
2ea67fc9	264	switch (key) {
123e1313	265	case SR_CONF_SAMPLERATE:
709468ba	266	*data = g_variant_new_uint64(devc->cur_rate);
df92e5cf	267	break;
df92e5cf	268	default:
bd6fbf62	269	return SR_ERR_NA;
df92e5cf	270	}
	271
	272	return SR_OK;
	273	}
	274
2ea67fc9	275	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	276	const struct sr_channel_group *cg)
df92e5cf	277	{
df92e5cf	278	int ret;
087a9161	279	struct dev_context *devc;
ca9b9f48 DE	280	uint64_t num_samples;
ca9b9f48 DE	281	const char *slope;
00b44ccb	282	int trigger_pos;
a9ed6877	283	double pos;
00b44ccb	284
53b4680f	285	(void)cg;
b0baddef	286
00b44ccb	287	devc = sdi->priv;
087a9161	288
df92e5cf	289	if (sdi->status != SR_ST_ACTIVE)
e73ffd42	290	return SR_ERR_DEV_CLOSED;
df92e5cf	291
2ea67fc9	292	switch (key) {
1953564a	293	case SR_CONF_SAMPLERATE:
00b44ccb	294	// FIXME
a9ed6877	295	return mso_configure_rate(sdi, g_variant_get_uint64(data));
df92e5cf	296	ret = SR_OK;
df92e5cf	297	break;
1953564a	298	case SR_CONF_LIMIT_SAMPLES:
a9ed6877	299	num_samples = g_variant_get_uint64(data);
5952553f	300	if (num_samples != 1024) {
5952553f	301	sr_err("Only 1024 samples are supported.");
00b44ccb UH	302	ret = SR_ERR_ARG;
	303	} else {
	304	devc->limit_samples = num_samples;
00b44ccb UH	305	ret = SR_OK;
00b44ccb UH	306	}
df92e5cf	307	break;
1953564a	308	case SR_CONF_CAPTURE_RATIO:
00b44ccb UH	309	ret = SR_OK;
00b44ccb UH	310	break;
1953564a	311	case SR_CONF_TRIGGER_SLOPE:
ca9b9f48 DE	312	slope = g_variant_get_string(data, NULL);
	313
	314	if (!slope \|\| !(slope[0] == 'f' \|\| slope[0] == 'r'))
00b44ccb UH	315	sr_err("Invalid trigger slope");
	316	ret = SR_ERR_ARG;
	317	} else {
ca9b9f48 DE	318	devc->trigger_slope = (slope[0] == 'r')
ca9b9f48 DE	319	? SLOPE_POSITIVE : SLOPE_NEGATIVE;
00b44ccb UH	320	ret = SR_OK;
	321	}
	322	break;
1953564a	323	case SR_CONF_HORIZ_TRIGGERPOS:
a9ed6877	324	pos = g_variant_get_double(data);
00b44ccb UH	325	if (pos < 0 \|\| pos > 255) {
	326	sr_err("Trigger position (%f) should be between 0 and 255.", pos);
	327	ret = SR_ERR_ARG;
	328	} else {
	329	trigger_pos = (int)pos;
	330	devc->trigger_holdoff[0] = trigger_pos & 0xff;
	331	ret = SR_OK;
	332	}
df92e5cf	333	break;
1953564a	334	case SR_CONF_RLE:
00b44ccb	335	ret = SR_OK;
df92e5cf	336	break;
df92e5cf	337	default:
bd6fbf62	338	ret = SR_ERR_NA;
00b44ccb	339	break;
df92e5cf	340	}
	341
	342	return ret;
	343	}
	344
8f996b89	345	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	346	const struct sr_channel_group *cg)
a1c743fc	347	{
a9ed6877 BV	348	GVariant *gvar;
a9ed6877 BV	349	GVariantBuilder gvb;
a1c743fc	350
53b4680f	351	(void)cg;
a1c743fc BV	352	(void)sdi;
	353
	354	switch (key) {
9a6517d1	355	case SR_CONF_DEVICE_OPTIONS:
584560f1	356	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b	357	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
9a6517d1	358	break;
a1c743fc	359	case SR_CONF_SAMPLERATE:
a9ed6877 BV	360	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	361	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	362	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	363	g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
	364	*data = g_variant_builder_end(&gvb);
a1c743fc	365	break;
c50277a6	366	case SR_CONF_TRIGGER_TYPE:
a9ed6877	367	*data = g_variant_new_string(TRIGGER_TYPE);
c50277a6	368	break;
a1c743fc	369	default:
bd6fbf62	370	return SR_ERR_NA;
a1c743fc BV	371	}
	372
	373	return SR_OK;
	374	}
	375
695dc859	376	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
df92e5cf	377	{
df92e5cf	378	struct dev_context *devc;
df92e5cf	379	int ret = SR_ERR;
00b44ccb	380
df92e5cf	381	if (sdi->status != SR_ST_ACTIVE)
e73ffd42 BV	382	return SR_ERR_DEV_CLOSED;
	383
	384	devc = sdi->priv;
df92e5cf	385
ba7dd8bb UH	386	if (mso_configure_channels(sdi) != SR_OK) {
ba7dd8bb UH	387	sr_err("Failed to configure channels.");
5a24e89c	388	return SR_ERR;
5a24e89c	389	}
df92e5cf	390
df92e5cf	391	/* FIXME: No need to do full reconfigure every time */
00b44ccb UH	392	// ret = mso_reset_fsm(sdi);
	393	// if (ret != SR_OK)
	394	// return ret;
df92e5cf	395
	396	/* FIXME: ACDC Mode */
	397	devc->ctlbase1 &= 0x7f;
00b44ccb	398	// devc->ctlbase1 \|= devc->acdcmode;
df92e5cf	399
	400	ret = mso_configure_rate(sdi, devc->cur_rate);
	401	if (ret != SR_OK)
	402	return ret;
	403
	404	/* set dac offset */
	405	ret = mso_dac_out(sdi, devc->dac_offset);
	406	if (ret != SR_OK)
	407	return ret;
	408
	409	ret = mso_configure_threshold_level(sdi);
	410	if (ret != SR_OK)
	411	return ret;
	412
	413	ret = mso_configure_trigger(sdi);
	414	if (ret != SR_OK)
	415	return ret;
	416
df92e5cf	417	/* END of config hardware part */
00b44ccb UH	418	ret = mso_arm(sdi);
	419	if (ret != SR_OK)
	420	return ret;
df92e5cf	421
df92e5cf	422	/* Start acquisition on the device. */
4db2aaff	423	mso_check_trigger(devc->serial, &devc->trigger_state);
4db2aaff	424	ret = mso_check_trigger(devc->serial, NULL);
df92e5cf	425	if (ret != SR_OK)
	426	return ret;
	427
365f04d6	428	/* Reset trigger state. */
	429	devc->trigger_state = 0x00;
	430
695dc859	431	std_session_send_df_header(sdi, LOG_PREFIX);
df92e5cf	432
ba7dd8bb	433	/* Our first channel is analog, the other 8 are of type 'logic'. */
365f04d6	434	/* TODO. */
365f04d6	435
102f1239	436	serial_source_add(sdi->session, devc->serial, G_IO_IN, -1,
695dc859	437	mso_receive_data, sdi);
df92e5cf	438
	439	return SR_OK;
	440	}
	441
087a9161	442	/* This stops acquisition on ALL devices, ignoring dev_index. */
695dc859	443	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
df92e5cf	444	{
df92e5cf	445	stop_acquisition(sdi);
	446
	447	return SR_OK;
	448	}
	449
dd5c48a6	450	static struct sr_dev_driver link_mso19_driver_info = {
df92e5cf	451	.name = "link-mso19",
	452	.longname = "Link Instruments MSO-19",
	453	.api_version = 1,
c2fdcc25	454	.init = std_init,
700d6b64	455	.cleanup = std_cleanup,
6078d2c9	456	.scan = scan,
c01bf34c	457	.dev_list = std_dev_list,
eea49cf1	458	.dev_clear = dev_clear,
035a1078 BV	459	.config_get = config_get,
035a1078 BV	460	.config_set = config_set,
a1c743fc	461	.config_list = config_list,
6078d2c9	462	.dev_open = dev_open,
bf2c987f	463	.dev_close = std_serial_dev_close,
6078d2c9 UH	464	.dev_acquisition_start = dev_acquisition_start,
6078d2c9 UH	465	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	466	.context = NULL,
df92e5cf	467	};
dd5c48a6	468	SR_REGISTER_DEV_DRIVER(link_mso19_driver_info);