[libsigrok.git] / src / hardware / ikalogic-scanaplus / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * 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 2 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"

#define USB_VENDOR_ID			0x0403
#define USB_DEVICE_ID			0x6014
#define USB_VENDOR_NAME			"IKALOGIC"
#define USB_MODEL_NAME			"ScanaPLUS"
#define USB_IPRODUCT			"SCANAPLUS"

#define SAMPLE_BUF_SIZE			(8 * 1024 * 1024)

static const uint32_t drvopts[] = {
	SR_CONF_LOGIC_ANALYZER,
};

static const uint32_t devopts[] = {
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
	SR_CONF_LIMIT_MSEC | SR_CONF_SET,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};

/* Channels are numbered 1-9. */
static const char *channel_names[] = {
	"1", "2", "3", "4", "5", "6", "7", "8", "9",
};

/* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */
static const uint64_t samplerates[1] = { SR_MHZ(100) };

static void clear_helper(struct dev_context *devc)
{
	ftdi_free(devc->ftdic);
	g_free(devc->compressed_buf);
	g_free(devc->sample_buf);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	unsigned int i;
	int ret;

	(void)options;

	/* Allocate memory for our private device context. */
	devc = g_malloc0(sizeof(struct dev_context));

	/* Allocate memory for the incoming compressed samples. */
	if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
		sr_err("compressed_buf malloc failed.");
		goto err_free_devc;
	}

	/* Allocate memory for the uncompressed samples. */
	if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
		sr_err("sample_buf malloc failed.");
		goto err_free_compressed_buf;
	}

	/* Allocate memory for the FTDI context (ftdic) and initialize it. */
	if (!(devc->ftdic = ftdi_new())) {
		sr_err("Failed to initialize libftdi.");
		goto err_free_sample_buf;
	}

	/* Check for the device and temporarily open it. */
	ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
				 USB_IPRODUCT, NULL);
	if (ret < 0) {
		/* Log errors, except for -3 ("device not found"). */
		if (ret != -3)
			sr_err("Failed to open device (%d): %s", ret,
			       ftdi_get_error_string(devc->ftdic));
		goto err_free_ftdic;
	}

	/* Register the device with libsigrok. */
	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = SR_ST_INACTIVE;
	sdi->vendor = g_strdup(USB_VENDOR_NAME);
	sdi->model = g_strdup(USB_MODEL_NAME);
	sdi->priv = devc;

	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);

	/* Close device. We'll reopen it again when we need it. */
	scanaplus_close(devc);

	return std_scan_complete(di, g_slist_append(NULL, sdi));

	scanaplus_close(devc);
err_free_ftdic:
	ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
err_free_sample_buf:
	g_free(devc->sample_buf);
err_free_compressed_buf:
	g_free(devc->compressed_buf);
err_free_devc:
	g_free(devc);

	return NULL;
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	int ret;

	devc = sdi->priv;

	/* Select interface A, otherwise communication will fail. */
	ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
	if (ret < 0) {
		sr_err("Failed to set FTDI interface A (%d): %s", ret,
		       ftdi_get_error_string(devc->ftdic));
		return SR_ERR;
	}

	/* Open the device. */
	ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
				 USB_IPRODUCT, NULL);
	if (ret < 0) {
		sr_err("Failed to open device (%d): %s", ret,
		       ftdi_get_error_string(devc->ftdic));
		return SR_ERR;
	}

	/* Purge RX/TX buffers in the FTDI chip. */
	if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
		sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
		       ret, ftdi_get_error_string(devc->ftdic));
		goto err_dev_open_close_ftdic;
	}

	/* Reset the FTDI bitmode. */
	ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
	if (ret < 0) {
		sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
		       ret, ftdi_get_error_string(devc->ftdic));
		goto err_dev_open_close_ftdic;
	}

	/* Set FTDI bitmode to "sync FIFO". */
	ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
	if (ret < 0) {
		sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
		       ret, ftdi_get_error_string(devc->ftdic));
		goto err_dev_open_close_ftdic;
	}

	/* Set the FTDI latency timer to 2. */
	ret = ftdi_set_latency_timer(devc->ftdic, 2);
	if (ret < 0) {
		sr_err("Failed to set FTDI latency timer (%d): %s.",
		       ret, ftdi_get_error_string(devc->ftdic));
		goto err_dev_open_close_ftdic;
	}

	/* Set the FTDI read data chunk size to 64kB. */
	ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
	if (ret < 0) {
		sr_err("Failed to set FTDI read data chunk size (%d): %s.",
		       ret, ftdi_get_error_string(devc->ftdic));
		goto err_dev_open_close_ftdic;
	}

	/* Get the ScanaPLUS device ID from the FTDI EEPROM. */
	if ((ret = scanaplus_get_device_id(devc)) < 0) {
		sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
		goto err_dev_open_close_ftdic;
	}
	sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
	       devc->devid[0], devc->devid[1], devc->devid[2]);

	return SR_OK;

err_dev_open_close_ftdic:
	scanaplus_close(devc);

	return SR_ERR;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;

	return scanaplus_close(devc);
}

static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	(void)sdi;
	(void)cg;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		/* The ScanaPLUS samplerate is 100MHz and can't be changed. */
		*data = g_variant_new_uint64(SR_MHZ(100));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	struct dev_context *devc;

	(void)cg;

	devc = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		if (g_variant_get_uint64(data) != SR_MHZ(100)) {
			sr_err("ScanaPLUS only supports samplerate = 100MHz.");
			return SR_ERR_ARG;
		}
		/* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
		break;
	case SR_CONF_LIMIT_MSEC:
		if (g_variant_get_uint64(data) == 0)
			return SR_ERR_ARG;
		devc->limit_msec = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		if (g_variant_get_uint64(data) == 0)
			return SR_ERR_ARG;
		devc->limit_samples = g_variant_get_uint64(data);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	GVariant *gvar;
	GVariantBuilder gvb;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
	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}", "samplerates", gvar);
		*data = g_variant_builder_end(&gvb);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	int ret;
	struct dev_context *devc;

	devc = sdi->priv;

	if (!devc->ftdic)
		return SR_ERR_BUG;

	/* TODO: Configure channels later (thresholds etc.). */

	/* Properly reset internal variables before every new acquisition. */
	devc->compressed_bytes_ignored = 0;
	devc->samples_sent = 0;
	devc->bytes_received = 0;

	if ((ret = scanaplus_init(devc)) < 0)
		return ret;

	if ((ret = scanaplus_start_acquisition(devc)) < 0)
		return ret;

	std_session_send_df_header(sdi);

	/* Hook up a dummy handler to receive data from the device. */
	sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	sr_session_source_remove(sdi->session, -1);
	std_session_send_df_end(sdi);

	return SR_OK;
}

static struct sr_dev_driver ikalogic_scanaplus_driver_info = {
	.name = "ikalogic-scanaplus",
	.longname = "IKALOGIC ScanaPLUS",
	.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 = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <config.h>
	21	#include "protocol.h"
	22
	23	#define USB_VENDOR_ID 0x0403
	24	#define USB_DEVICE_ID 0x6014
	25	#define USB_VENDOR_NAME "IKALOGIC"
	26	#define USB_MODEL_NAME "ScanaPLUS"
	27	#define USB_IPRODUCT "SCANAPLUS"
	28
	29	#define SAMPLE_BUF_SIZE (8 * 1024 * 1024)
	30
	31	static const uint32_t drvopts[] = {
	32	SR_CONF_LOGIC_ANALYZER,
	33	};
	34
	35	static const uint32_t devopts[] = {
	36	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET,
	37	SR_CONF_LIMIT_MSEC \| SR_CONF_SET,
	38	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	39	};
	40
	41	/* Channels are numbered 1-9. */
	42	static const char *channel_names[] = {
	43	"1", "2", "3", "4", "5", "6", "7", "8", "9",
	44	};
	45
	46	/* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */
	47	static const uint64_t samplerates[1] = { SR_MHZ(100) };
	48
	49	static void clear_helper(struct dev_context *devc)
	50	{
	51	ftdi_free(devc->ftdic);
	52	g_free(devc->compressed_buf);
	53	g_free(devc->sample_buf);
	54	}
	55
	56	static int dev_clear(const struct sr_dev_driver *di)
	57	{
	58	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
	59	}
	60
	61	static GSList scan(struct sr_dev_driver di, GSList *options)
	62	{
	63	struct sr_dev_inst *sdi;
	64	struct dev_context *devc;
	65	unsigned int i;
	66	int ret;
	67
	68	(void)options;
	69
	70	/* Allocate memory for our private device context. */
	71	devc = g_malloc0(sizeof(struct dev_context));
	72
	73	/* Allocate memory for the incoming compressed samples. */
	74	if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
	75	sr_err("compressed_buf malloc failed.");
	76	goto err_free_devc;
	77	}
	78
	79	/* Allocate memory for the uncompressed samples. */
	80	if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
	81	sr_err("sample_buf malloc failed.");
	82	goto err_free_compressed_buf;
	83	}
	84
	85	/* Allocate memory for the FTDI context (ftdic) and initialize it. */
	86	if (!(devc->ftdic = ftdi_new())) {
	87	sr_err("Failed to initialize libftdi.");
	88	goto err_free_sample_buf;
	89	}
	90
	91	/* Check for the device and temporarily open it. */
	92	ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
	93	USB_IPRODUCT, NULL);
	94	if (ret < 0) {
	95	/* Log errors, except for -3 ("device not found"). */
	96	if (ret != -3)
	97	sr_err("Failed to open device (%d): %s", ret,
	98	ftdi_get_error_string(devc->ftdic));
	99	goto err_free_ftdic;
	100	}
	101
	102	/* Register the device with libsigrok. */
	103	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	104	sdi->status = SR_ST_INACTIVE;
	105	sdi->vendor = g_strdup(USB_VENDOR_NAME);
	106	sdi->model = g_strdup(USB_MODEL_NAME);
	107	sdi->priv = devc;
	108
	109	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
	110	sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
	111
	112	/* Close device. We'll reopen it again when we need it. */
	113	scanaplus_close(devc);
	114
	115	return std_scan_complete(di, g_slist_append(NULL, sdi));
	116
	117	scanaplus_close(devc);
	118	err_free_ftdic:
	119	ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
	120	err_free_sample_buf:
	121	g_free(devc->sample_buf);
	122	err_free_compressed_buf:
	123	g_free(devc->compressed_buf);
	124	err_free_devc:
	125	g_free(devc);
	126
	127	return NULL;
	128	}
	129
	130	static int dev_open(struct sr_dev_inst *sdi)
	131	{
	132	struct dev_context *devc;
	133	int ret;
	134
	135	devc = sdi->priv;
	136
	137	/* Select interface A, otherwise communication will fail. */
	138	ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
	139	if (ret < 0) {
	140	sr_err("Failed to set FTDI interface A (%d): %s", ret,
	141	ftdi_get_error_string(devc->ftdic));
	142	return SR_ERR;
	143	}
	144
	145	/* Open the device. */
	146	ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
	147	USB_IPRODUCT, NULL);
	148	if (ret < 0) {
	149	sr_err("Failed to open device (%d): %s", ret,
	150	ftdi_get_error_string(devc->ftdic));
	151	return SR_ERR;
	152	}
	153
	154	/* Purge RX/TX buffers in the FTDI chip. */
	155	if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
	156	sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
	157	ret, ftdi_get_error_string(devc->ftdic));
	158	goto err_dev_open_close_ftdic;
	159	}
	160
	161	/* Reset the FTDI bitmode. */
	162	ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
	163	if (ret < 0) {
	164	sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
	165	ret, ftdi_get_error_string(devc->ftdic));
	166	goto err_dev_open_close_ftdic;
	167	}
	168
	169	/* Set FTDI bitmode to "sync FIFO". */
	170	ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
	171	if (ret < 0) {
	172	sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
	173	ret, ftdi_get_error_string(devc->ftdic));
	174	goto err_dev_open_close_ftdic;
	175	}
	176
	177	/* Set the FTDI latency timer to 2. */
	178	ret = ftdi_set_latency_timer(devc->ftdic, 2);
	179	if (ret < 0) {
	180	sr_err("Failed to set FTDI latency timer (%d): %s.",
	181	ret, ftdi_get_error_string(devc->ftdic));
	182	goto err_dev_open_close_ftdic;
	183	}
	184
	185	/* Set the FTDI read data chunk size to 64kB. */
	186	ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
	187	if (ret < 0) {
	188	sr_err("Failed to set FTDI read data chunk size (%d): %s.",
	189	ret, ftdi_get_error_string(devc->ftdic));
	190	goto err_dev_open_close_ftdic;
	191	}
	192
	193	/* Get the ScanaPLUS device ID from the FTDI EEPROM. */
	194	if ((ret = scanaplus_get_device_id(devc)) < 0) {
	195	sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
	196	goto err_dev_open_close_ftdic;
	197	}
	198	sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
	199	devc->devid[0], devc->devid[1], devc->devid[2]);
	200
	201	return SR_OK;
	202
	203	err_dev_open_close_ftdic:
	204	scanaplus_close(devc);
	205
	206	return SR_ERR;
	207	}
	208
	209	static int dev_close(struct sr_dev_inst *sdi)
	210	{
	211	struct dev_context *devc;
	212
	213	devc = sdi->priv;
	214
	215	return scanaplus_close(devc);
	216	}
	217
	218	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	219	const struct sr_channel_group *cg)
	220	{
	221	(void)sdi;
	222	(void)cg;
	223
	224	switch (key) {
	225	case SR_CONF_SAMPLERATE:
	226	/* The ScanaPLUS samplerate is 100MHz and can't be changed. */
	227	*data = g_variant_new_uint64(SR_MHZ(100));
	228	break;
	229	default:
	230	return SR_ERR_NA;
	231	}
	232
	233	return SR_OK;
	234	}
	235
	236	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	237	const struct sr_channel_group *cg)
	238	{
	239	struct dev_context *devc;
	240
	241	(void)cg;
	242
	243	devc = sdi->priv;
	244
	245	switch (key) {
	246	case SR_CONF_SAMPLERATE:
	247	if (g_variant_get_uint64(data) != SR_MHZ(100)) {
	248	sr_err("ScanaPLUS only supports samplerate = 100MHz.");
	249	return SR_ERR_ARG;
	250	}
	251	/* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
	252	break;
	253	case SR_CONF_LIMIT_MSEC:
	254	if (g_variant_get_uint64(data) == 0)
	255	return SR_ERR_ARG;
	256	devc->limit_msec = g_variant_get_uint64(data);
	257	break;
	258	case SR_CONF_LIMIT_SAMPLES:
	259	if (g_variant_get_uint64(data) == 0)
	260	return SR_ERR_ARG;
	261	devc->limit_samples = g_variant_get_uint64(data);
	262	break;
	263	default:
	264	return SR_ERR_NA;
	265	}
	266
	267	return SR_OK;
	268	}
	269
	270	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	271	const struct sr_channel_group *cg)
	272	{
	273	GVariant *gvar;
	274	GVariantBuilder gvb;
	275
	276	switch (key) {
	277	case SR_CONF_DEVICE_OPTIONS:
	278	return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
	279	case SR_CONF_SAMPLERATE:
	280	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	281	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
	282	samplerates, ARRAY_SIZE(samplerates),
	283	sizeof(uint64_t));
	284	g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
	285	*data = g_variant_builder_end(&gvb);
	286	break;
	287	default:
	288	return SR_ERR_NA;
	289	}
	290
	291	return SR_OK;
	292	}
	293
	294	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	295	{
	296	int ret;
	297	struct dev_context *devc;
	298
	299	devc = sdi->priv;
	300
	301	if (!devc->ftdic)
	302	return SR_ERR_BUG;
	303
	304	/* TODO: Configure channels later (thresholds etc.). */
	305
	306	/* Properly reset internal variables before every new acquisition. */
	307	devc->compressed_bytes_ignored = 0;
	308	devc->samples_sent = 0;
	309	devc->bytes_received = 0;
	310
	311	if ((ret = scanaplus_init(devc)) < 0)
	312	return ret;
	313
	314	if ((ret = scanaplus_start_acquisition(devc)) < 0)
	315	return ret;
	316
	317	std_session_send_df_header(sdi);
	318
	319	/* Hook up a dummy handler to receive data from the device. */
	320	sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi);
	321
	322	return SR_OK;
	323	}
	324
	325	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	326	{
	327	sr_session_source_remove(sdi->session, -1);
	328	std_session_send_df_end(sdi);
	329
	330	return SR_OK;
	331	}
	332
	333	static struct sr_dev_driver ikalogic_scanaplus_driver_info = {
	334	.name = "ikalogic-scanaplus",
	335	.longname = "IKALOGIC ScanaPLUS",
	336	.api_version = 1,
	337	.init = std_init,
	338	.cleanup = std_cleanup,
	339	.scan = scan,
	340	.dev_list = std_dev_list,
	341	.dev_clear = dev_clear,
	342	.config_get = config_get,
	343	.config_set = config_set,
	344	.config_list = config_list,
	345	.dev_open = dev_open,
	346	.dev_close = dev_close,
	347	.dev_acquisition_start = dev_acquisition_start,
	348	.dev_acquisition_stop = dev_acquisition_stop,
	349	.context = NULL,
	350	};
	351	SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info);