[libsigrok.git] / src / hardware / kingst-la2016 / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
 * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * 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/>.
 */

/*
 * This driver implementation initially was derived from the
 * src/hardware/saleae-logic16/ source code.
 */

#include <config.h>

#include <libsigrok/libsigrok.h>
#include <string.h>

#include "libsigrok-internal.h"
#include "protocol.h"

static const uint32_t scanopts[] = {
	SR_CONF_CONN,
};

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

static const uint32_t devopts[] = {
	/* TODO: SR_CONF_CONTINUOUS, */
	SR_CONF_CONN | SR_CONF_GET,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET | SR_CONF_LIST,
	SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
	SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
};

static const int32_t trigger_matches[] = {
	SR_TRIGGER_ZERO,
	SR_TRIGGER_ONE,
	SR_TRIGGER_RISING,
	SR_TRIGGER_FALLING,
};

static const char *channel_names[] = {
	"CH0", "CH1", "CH2", "CH3", "CH4", "CH5", "CH6", "CH7",
	"CH8", "CH9", "CH10", "CH11", "CH12", "CH13", "CH14", "CH15",
};

static const uint64_t samplerates_la2016[] = {
	SR_KHZ(20),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(200),
	SR_KHZ(500),
	SR_MHZ(1),
	SR_MHZ(2),
	SR_MHZ(4),
	SR_MHZ(5),
	SR_MHZ(8),
	SR_MHZ(10),
	SR_MHZ(20),
	SR_MHZ(50),
	SR_MHZ(100),
	SR_MHZ(200),
};

static const uint64_t samplerates_la1016[] = {
	SR_KHZ(20),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(200),
	SR_KHZ(500),
	SR_MHZ(1),
	SR_MHZ(2),
	SR_MHZ(4),
	SR_MHZ(5),
	SR_MHZ(8),
	SR_MHZ(10),
	SR_MHZ(20),
	SR_MHZ(50),
	SR_MHZ(100),
};

static const float logic_threshold_value[] = {
	1.58,
	2.5,
	1.165,
	1.5,
	1.25,
	0.9,
	0.75,
	0.60,
	0.45,
};

static const char *logic_threshold[] = {
	"TTL 5V",
	"CMOS 5V",
	"CMOS 3.3V",
	"CMOS 3.0V",
	"CMOS 2.5V",
	"CMOS 1.8V",
	"CMOS 1.5V",
	"CMOS 1.2V",
	"CMOS 0.9V",
	"USER",
};

#define LOGIC_THRESHOLD_IDX_USER	(ARRAY_SIZE(logic_threshold) - 1)

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct drv_context *drvc;
	struct sr_context *ctx;
	struct dev_context *devc;
	struct sr_dev_inst *sdi;
	struct sr_usb_dev_inst *usb;
	struct sr_config *src;
	GSList *l;
	GSList *devices;
	GSList *conn_devices;
	struct libusb_device_descriptor des;
	libusb_device **devlist, *dev;
	size_t dev_count, dev_idx, ch_idx;
	uint8_t bus, addr;
	const char *conn;
	char conn_id[64];
	uint64_t fw_uploaded;
	int ret;

	drvc = di->context;
	ctx = drvc->sr_ctx;;

	conn = NULL;
	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;
		}
	}
	if (conn)
		conn_devices = sr_usb_find(ctx->libusb_ctx, conn);
	else
		conn_devices = NULL;

	/* Find all LA2016 devices, optionally upload firmware to them. */
	devices = NULL;
	ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
	if (ret < 0) {
		sr_err("Cannot get device list: %s.", libusb_error_name(ret));
		return devices;
	}
	dev_count = ret;
	for (dev_idx = 0; dev_idx < dev_count; dev_idx++) {
		dev = devlist[dev_idx];
		bus = libusb_get_bus_number(dev);
		addr = libusb_get_device_address(dev);
		if (conn) {
			usb = NULL;
			for (l = conn_devices; l; l = l->next) {
				usb = l->data;
				if (usb->bus == bus && usb->address == addr)
					break;
			}
			if (!l) {
				/*
				 * A connection parameter was specified and
				 * this device does not match the filter.
				 */
				continue;
			}
		}

		libusb_get_device_descriptor(dev, &des);
		ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
		if (ret < 0)
			continue;
		if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
			continue;

		/* USB identification matches, a device was found. */
		sr_dbg("Found a device (USB identification).");
		sdi = g_malloc0(sizeof(*sdi));
		sdi->status = SR_ST_INITIALIZING;
		sdi->connection_id = g_strdup(conn_id);

		fw_uploaded = 0;
		if (des.iProduct != LA2016_IPRODUCT_INDEX) {
			sr_info("Device at '%s' has no firmware loaded.",
				conn_id);

			ret = la2016_upload_firmware(ctx, dev, des.idProduct);
			if (ret != SR_OK) {
				sr_err("MCU firmware upload failed.");
				g_free(sdi->connection_id);
				g_free(sdi);
				continue;
			}
			fw_uploaded = g_get_monotonic_time();
			/* Will re-enumerate. Mark as "unknown address yet". */
			addr = 0xff;
		}

		sdi->vendor = g_strdup("Kingst");
		sdi->model = g_strdup("LA2016");

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

		devices = g_slist_append(devices, sdi);

		devc = g_malloc0(sizeof(*devc));
		sdi->priv = devc;
		devc->fw_uploaded = fw_uploaded;
		devc->threshold_voltage_idx = 0;
		devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx];

		sdi->status = SR_ST_INACTIVE;
		sdi->inst_type = SR_INST_USB;

		sdi->conn = sr_usb_dev_inst_new(bus, addr, NULL);
	}
	libusb_free_device_list(devlist, 1);
	g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);

	return std_scan_complete(di, devices);
}

static int la2016_dev_open(struct sr_dev_inst *sdi)
{
	struct sr_dev_driver *di;
	struct drv_context *drvc;
	struct sr_context *ctx;
	libusb_device **devlist, *dev;
	struct sr_usb_dev_inst *usb;
	struct libusb_device_descriptor des;
	int ret;
	size_t device_count, dev_idx;
	gboolean check_conn;
	char conn_id[64];

	di = sdi->driver;
	drvc = di->context;
	ctx = drvc->sr_ctx;;
	usb = sdi->conn;
	ret = SR_ERR;

	ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
	if (ret < 0) {
		sr_err("Cannot get device list: %s.", libusb_error_name(ret));
		return SR_ERR;
	}
	device_count = ret;
	if (!device_count) {
		sr_warn("Device list is empty. Cannot open.");
		return SR_ERR;
	}
	for (dev_idx = 0; dev_idx < device_count; dev_idx++) {
		dev = devlist[dev_idx];
		libusb_get_device_descriptor(dev, &des);

		if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID)
			continue;
		if (des.iProduct != LA2016_IPRODUCT_INDEX)
			continue;

		check_conn = sdi->status == SR_ST_INITIALIZING;
		check_conn |= sdi->status == SR_ST_INACTIVE;
		if (check_conn) {
			/* Check physical USB bus/port address. */
			ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
			if (ret < 0)
				continue;
			if (strcmp(sdi->connection_id, conn_id) != 0) {
				/* Not the device we looked up before. */
				continue;
			}
		}

		ret = libusb_open(dev, &usb->devhdl);
		if (ret != 0) {
			sr_err("Cannot open device: %s.",
				libusb_error_name(ret));
			ret = SR_ERR_IO;
			break;
		}

		if (usb->address == 0xff) {
			/*
			 * First encounter after firmware upload.
			 * Grab current address after enumeration.
			 */
			usb->address = libusb_get_device_address(dev);
		}

		ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
		if (ret == LIBUSB_ERROR_BUSY) {
			sr_err("Cannot claim USB interface. Another program or driver using it?");
			ret = SR_ERR;
			break;
		} else if (ret == LIBUSB_ERROR_NO_DEVICE) {
			sr_err("Device has been disconnected.");
			ret = SR_ERR;
			break;
		} else if (ret != 0) {
			sr_err("Cannot claim USB interface: %s.",
				libusb_error_name(ret));
			ret = SR_ERR;
			break;
		}

		if ((ret = la2016_init_device(sdi)) != SR_OK) {
			sr_err("Cannot initialize device.");
			break;
		}

		sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.",
			usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
		ret = SR_OK;
		break;
	}
	libusb_free_device_list(devlist, 1);

	if (ret != SR_OK) {
		if (usb->devhdl) {
			libusb_release_interface(usb->devhdl, USB_INTERFACE);
			libusb_close(usb->devhdl);
			usb->devhdl = NULL;
		}
		return ret;
	}

	return SR_OK;
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	uint64_t reset_done, now, elapsed_ms;
	int ret;

	devc = sdi->priv;

	/*
	 * When the sigrok driver recently has uploaded MCU firmware,
	 * then wait for the FX2 to re-enumerate. Allow the USB device
	 * to vanish before it reappears. Timeouts are rough estimates
	 * after all, the imprecise time of the last check (potentially
	 * executes after the total check period) simplifies code paths
	 * with optional diagnostics. And increases the probability of
	 * successfully detecting "late/slow" devices.
	 */
	if (devc->fw_uploaded) {
		sr_info("Waiting for device to reset after firmware upload.");
		now = g_get_monotonic_time();
		reset_done = devc->fw_uploaded + RENUM_GONE_DELAY_MS * 1000;
		if (now < reset_done)
			g_usleep(reset_done - now);
		do {
			now = g_get_monotonic_time();
			elapsed_ms = (now - devc->fw_uploaded) / 1000;
			sr_spew("Waited %" PRIu64 "ms.", elapsed_ms);
			ret = la2016_dev_open(sdi);
			if (ret == SR_OK) {
				devc->fw_uploaded = 0;
				break;
			}
			g_usleep(RENUM_POLL_INTERVAL_MS * 1000);
		} while (elapsed_ms < RENUM_CHECK_PERIOD_MS);
		if (ret != SR_OK) {
			sr_err("Device failed to re-enumerate.");
			return ret;
		}
		sr_info("Device came back after %" PRIi64 "ms.", elapsed_ms);
	} else {
		ret = la2016_dev_open(sdi);
	}

	if (ret != SR_OK) {
		sr_err("Cannot open device.");
		return ret;
	}

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_usb_dev_inst *usb;

	usb = sdi->conn;

	if (!usb->devhdl)
		return SR_ERR_BUG;

	la2016_deinit_device(sdi);

	sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
		usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	libusb_close(usb->devhdl);
	usb->devhdl = NULL;

	return SR_OK;
}

static int config_get(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	double rounded;
	const char *label;

	(void)cg;

	if (!sdi)
		return SR_ERR_ARG;
	devc = sdi->priv;

	switch (key) {
	case SR_CONF_CONN:
		if (!sdi->conn)
			return SR_ERR_ARG;
		usb = sdi->conn;
		if (usb->address == 0xff) {
			/*
			 * Device still needs to re-enumerate after firmware
			 * upload, so we don't know its (future) address.
			 */
			return SR_ERR;
		}
		*data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
		break;
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(devc->cur_samplerate);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		*data = g_variant_new_uint64(devc->limit_samples);
		break;
	case SR_CONF_CAPTURE_RATIO:
		*data = g_variant_new_uint64(devc->capture_ratio);
		break;
	case SR_CONF_VOLTAGE_THRESHOLD:
		rounded = (int)(devc->threshold_voltage / 0.1) * 0.1;
		*data = std_gvar_tuple_double(rounded, rounded + 0.1);
		return SR_OK;
	case SR_CONF_LOGIC_THRESHOLD:
		label = logic_threshold[devc->threshold_voltage_idx];
		*data = g_variant_new_string(label);
		break;
	case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
		*data = g_variant_new_double(devc->threshold_voltage);
		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;
	double low, high;
	int idx;

	(void)cg;

	devc = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		devc->cur_samplerate = g_variant_get_uint64(data);
		break;
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_samples = g_variant_get_uint64(data);
		break;
	case SR_CONF_CAPTURE_RATIO:
		devc->capture_ratio = g_variant_get_uint64(data);
		break;
	case SR_CONF_VOLTAGE_THRESHOLD:
		g_variant_get(data, "(dd)", &low, &high);
		devc->threshold_voltage = (low + high) / 2.0;
		devc->threshold_voltage_idx = LOGIC_THRESHOLD_IDX_USER;
		break;
	case SR_CONF_LOGIC_THRESHOLD: {
		idx = std_str_idx(data, ARRAY_AND_SIZE(logic_threshold));
		if (idx < 0)
			return SR_ERR_ARG;
		if (idx != LOGIC_THRESHOLD_IDX_USER) {
			devc->threshold_voltage = logic_threshold_value[idx];
		}
		devc->threshold_voltage_idx = idx;
		break;
	}
	case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
		devc->threshold_voltage = g_variant_get_double(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)
{
	struct dev_context *devc;

	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
	case SR_CONF_DEVICE_OPTIONS:
		return STD_CONFIG_LIST(key, data, sdi, cg,
			scanopts, drvopts, devopts);
	case SR_CONF_SAMPLERATE:
		if (!sdi)
			return SR_ERR_ARG;
		devc = sdi->priv;
		if (devc->max_samplerate == SR_MHZ(200)) {
			*data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016));
		} else {
			*data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016));
		}
		break;
	case SR_CONF_LIMIT_SAMPLES:
		*data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN,
			LA2016_NUM_SAMPLES_MAX);
		break;
	case SR_CONF_VOLTAGE_THRESHOLD:
		*data = std_gvar_min_max_step_thresholds(
			LA2016_THR_VOLTAGE_MIN,
			LA2016_THR_VOLTAGE_MAX, 0.1);
		break;
	case SR_CONF_TRIGGER_MATCH:
		*data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
		break;
	case SR_CONF_LOGIC_THRESHOLD:
		*data = g_variant_new_strv(ARRAY_AND_SIZE(logic_threshold));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int configure_channels(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	GSList *l;
	struct sr_channel *ch;

	devc = sdi->priv;

	devc->cur_channels = 0;
	for (l = sdi->channels; l; l = l->next) {
		ch = l->data;
		if (!ch->enabled)
			continue;
		devc->cur_channels |= 1UL << ch->index;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct sr_dev_driver *di;
	struct drv_context *drvc;
	struct sr_context *ctx;
	struct dev_context *devc;
	int ret;

	di = sdi->driver;
	drvc = di->context;
	ctx = drvc->sr_ctx;;
	devc = sdi->priv;

	if (configure_channels(sdi) != SR_OK) {
		sr_err("Cannot configure channels.");
		return SR_ERR;
	}

	devc->convbuffer_size = LA2016_CONVBUFFER_SIZE;
	devc->convbuffer = g_try_malloc(devc->convbuffer_size);
	if (!devc->convbuffer) {
		sr_err("Cannot allocate conversion buffer.");
		return SR_ERR_MALLOC;
	}

	ret = la2016_setup_acquisition(sdi);
	if (ret != SR_OK) {
		g_free(devc->convbuffer);
		devc->convbuffer = NULL;
		return ret;
	}

	ret = la2016_start_acquisition(sdi);
	if (ret != SR_OK) {
		la2016_abort_acquisition(sdi);
		g_free(devc->convbuffer);
		devc->convbuffer = NULL;
		return ret;
	}

	devc->completion_seen = FALSE;
	usb_source_add(sdi->session, ctx, 50,
		la2016_receive_data, (void *)sdi);

	std_session_send_df_header(sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	int ret;

	ret = la2016_abort_acquisition(sdi);

	return ret;
}

static struct sr_dev_driver kingst_la2016_driver_info = {
	.name = "kingst-la2016",
	.longname = "Kingst LA2016",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = std_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(kingst_la2016_driver_info);
Commit	Line	Data
f2cd2deb FS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
	5	* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
	6	* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
	7	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	8	*
	9	* This program is free software: you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation, either version 3 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	21	*/
	22
96dc954e GS	23	/*
	24	* This driver implementation initially was derived from the
	25	* src/hardware/saleae-logic16/ source code.
	26	*/
f2cd2deb FS	27
f2cd2deb FS	28	#include <config.h>
a7740b06	29
a7740b06	30	#include <libsigrok/libsigrok.h>
f2cd2deb	31	#include <string.h>
a7740b06	32
f2cd2deb FS	33	#include "libsigrok-internal.h"
	34	#include "protocol.h"
	35
	36	static const uint32_t scanopts[] = {
	37	SR_CONF_CONN,
	38	};
	39
	40	static const uint32_t drvopts[] = {
	41	SR_CONF_LOGIC_ANALYZER,
	42	};
	43
	44	static const uint32_t devopts[] = {
	45	/* TODO: SR_CONF_CONTINUOUS, */
	46	SR_CONF_CONN \| SR_CONF_GET,
	47	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	48	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_GET \| SR_CONF_LIST,
	49	SR_CONF_VOLTAGE_THRESHOLD \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	50	SR_CONF_LOGIC_THRESHOLD \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	51	SR_CONF_LOGIC_THRESHOLD_CUSTOM \| SR_CONF_GET \| SR_CONF_SET,
	52	SR_CONF_TRIGGER_MATCH \| SR_CONF_LIST,
	53	SR_CONF_CAPTURE_RATIO \| SR_CONF_GET \| SR_CONF_SET,
	54	};
	55
	56	static const int32_t trigger_matches[] = {
	57	SR_TRIGGER_ZERO,
	58	SR_TRIGGER_ONE,
	59	SR_TRIGGER_RISING,
	60	SR_TRIGGER_FALLING,
	61	};
	62
	63	static const char *channel_names[] = {
da25c287 GS	64	"CH0", "CH1", "CH2", "CH3", "CH4", "CH5", "CH6", "CH7",
da25c287 GS	65	"CH8", "CH9", "CH10", "CH11", "CH12", "CH13", "CH14", "CH15",
f2cd2deb FS	66	};
f2cd2deb FS	67
8b172e78	68	static const uint64_t samplerates_la2016[] = {
f2cd2deb FS	69	SR_KHZ(20),
	70	SR_KHZ(50),
	71	SR_KHZ(100),
	72	SR_KHZ(200),
	73	SR_KHZ(500),
	74	SR_MHZ(1),
	75	SR_MHZ(2),
	76	SR_MHZ(4),
	77	SR_MHZ(5),
	78	SR_MHZ(8),
	79	SR_MHZ(10),
	80	SR_MHZ(20),
	81	SR_MHZ(50),
	82	SR_MHZ(100),
	83	SR_MHZ(200),
	84	};
	85
8b172e78 KG	86	static const uint64_t samplerates_la1016[] = {
	87	SR_KHZ(20),
	88	SR_KHZ(50),
	89	SR_KHZ(100),
	90	SR_KHZ(200),
	91	SR_KHZ(500),
	92	SR_MHZ(1),
	93	SR_MHZ(2),
	94	SR_MHZ(4),
	95	SR_MHZ(5),
	96	SR_MHZ(8),
	97	SR_MHZ(10),
	98	SR_MHZ(20),
	99	SR_MHZ(50),
	100	SR_MHZ(100),
	101	};
	102
f2cd2deb FS	103	static const float logic_threshold_value[] = {
	104	1.58,
	105	2.5,
	106	1.165,
	107	1.5,
	108	1.25,
	109	0.9,
	110	0.75,
	111	0.60,
	112	0.45,
	113	};
	114
	115	static const char *logic_threshold[] = {
	116	"TTL 5V",
	117	"CMOS 5V",
	118	"CMOS 3.3V",
	119	"CMOS 3.0V",
	120	"CMOS 2.5V",
	121	"CMOS 1.8V",
	122	"CMOS 1.5V",
	123	"CMOS 1.2V",
	124	"CMOS 0.9V",
	125	"USER",
	126	};
	127
da2cb50d	128	#define LOGIC_THRESHOLD_IDX_USER (ARRAY_SIZE(logic_threshold) - 1)
f2cd2deb	129
f2cd2deb FS	130	static GSList scan(struct sr_dev_driver di, GSList *options)
	131	{
	132	struct drv_context *drvc;
520a20e9	133	struct sr_context *ctx;
f2cd2deb FS	134	struct dev_context *devc;
	135	struct sr_dev_inst *sdi;
	136	struct sr_usb_dev_inst *usb;
	137	struct sr_config *src;
	138	GSList *l;
	139	GSList *devices;
	140	GSList *conn_devices;
	141	struct libusb_device_descriptor des;
520a20e9 GS	142	libusb_device *devlist, dev;
	143	size_t dev_count, dev_idx, ch_idx;
	144	uint8_t bus, addr;
f2cd2deb	145	const char *conn;
520a20e9	146	char conn_id[64];
22cb067a	147	uint64_t fw_uploaded;
520a20e9	148	int ret;
f2cd2deb FS	149
f2cd2deb FS	150	drvc = di->context;
520a20e9	151	ctx = drvc->sr_ctx;;
f2cd2deb FS	152
	153	conn = NULL;
	154	for (l = options; l; l = l->next) {
	155	src = l->data;
	156	switch (src->key) {
	157	case SR_CONF_CONN:
	158	conn = g_variant_get_string(src->data, NULL);
	159	break;
	160	}
	161	}
	162	if (conn)
520a20e9	163	conn_devices = sr_usb_find(ctx->libusb_ctx, conn);
f2cd2deb FS	164	else
	165	conn_devices = NULL;
	166
96dc954e	167	/* Find all LA2016 devices, optionally upload firmware to them. */
f2cd2deb	168	devices = NULL;
520a20e9 GS	169	ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
	170	if (ret < 0) {
	171	sr_err("Cannot get device list: %s.", libusb_error_name(ret));
	172	return devices;
	173	}
	174	dev_count = ret;
	175	for (dev_idx = 0; dev_idx < dev_count; dev_idx++) {
	176	dev = devlist[dev_idx];
	177	bus = libusb_get_bus_number(dev);
	178	addr = libusb_get_device_address(dev);
f2cd2deb FS	179	if (conn) {
	180	usb = NULL;
	181	for (l = conn_devices; l; l = l->next) {
	182	usb = l->data;
520a20e9	183	if (usb->bus == bus && usb->address == addr)
f2cd2deb FS	184	break;
f2cd2deb FS	185	}
955ab604	186	if (!l) {
96dc954e GS	187	/*
	188	* A connection parameter was specified and
	189	* this device does not match the filter.
	190	*/
f2cd2deb	191	continue;
955ab604	192	}
f2cd2deb FS	193	}
f2cd2deb FS	194
520a20e9 GS	195	libusb_get_device_descriptor(dev, &des);
	196	ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
	197	if (ret < 0)
f2cd2deb	198	continue;
f2cd2deb FS	199	if (des.idVendor != LA2016_VID \|\| des.idProduct != LA2016_PID)
	200	continue;
	201
96dc954e	202	/* USB identification matches, a device was found. */
cf057ac4	203	sr_dbg("Found a device (USB identification).");
520a20e9	204	sdi = g_malloc0(sizeof(*sdi));
f2cd2deb	205	sdi->status = SR_ST_INITIALIZING;
520a20e9	206	sdi->connection_id = g_strdup(conn_id);
f2cd2deb	207
22cb067a	208	fw_uploaded = 0;
852c7d14	209	if (des.iProduct != LA2016_IPRODUCT_INDEX) {
520a20e9 GS	210	sr_info("Device at '%s' has no firmware loaded.",
520a20e9 GS	211	conn_id);
f2cd2deb	212
520a20e9 GS	213	ret = la2016_upload_firmware(ctx, dev, des.idProduct);
520a20e9 GS	214	if (ret != SR_OK) {
91f73872	215	sr_err("MCU firmware upload failed.");
f2cd2deb FS	216	g_free(sdi->connection_id);
	217	g_free(sdi);
	218	continue;
	219	}
22cb067a	220	fw_uploaded = g_get_monotonic_time();
96dc954e	221	/* Will re-enumerate. Mark as "unknown address yet". */
520a20e9	222	addr = 0xff;
f2cd2deb FS	223	}
	224
	225	sdi->vendor = g_strdup("Kingst");
	226	sdi->model = g_strdup("LA2016");
	227
520a20e9 GS	228	for (ch_idx = 0; ch_idx < ARRAY_SIZE(channel_names); ch_idx++) {
	229	sr_channel_new(sdi, ch_idx, SR_CHANNEL_LOGIC,
	230	TRUE, channel_names[ch_idx]);
	231	}
f2cd2deb FS	232
	233	devices = g_slist_append(devices, sdi);
	234
520a20e9	235	devc = g_malloc0(sizeof(*devc));
f2cd2deb	236	sdi->priv = devc;
22cb067a	237	devc->fw_uploaded = fw_uploaded;
f2cd2deb FS	238	devc->threshold_voltage_idx = 0;
	239	devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx];
	240
	241	sdi->status = SR_ST_INACTIVE;
	242	sdi->inst_type = SR_INST_USB;
	243
520a20e9	244	sdi->conn = sr_usb_dev_inst_new(bus, addr, NULL);
f2cd2deb FS	245	}
	246	libusb_free_device_list(devlist, 1);
	247	g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
	248
	249	return std_scan_complete(di, devices);
	250	}
	251
	252	static int la2016_dev_open(struct sr_dev_inst *sdi)
	253	{
	254	struct sr_dev_driver *di;
520a20e9 GS	255	struct drv_context *drvc;
	256	struct sr_context *ctx;
	257	libusb_device *devlist, dev;
f2cd2deb FS	258	struct sr_usb_dev_inst *usb;
f2cd2deb FS	259	struct libusb_device_descriptor des;
520a20e9 GS	260	int ret;
	261	size_t device_count, dev_idx;
	262	gboolean check_conn;
	263	char conn_id[64];
f2cd2deb FS	264
	265	di = sdi->driver;
	266	drvc = di->context;
520a20e9	267	ctx = drvc->sr_ctx;;
f2cd2deb FS	268	usb = sdi->conn;
	269	ret = SR_ERR;
	270
520a20e9 GS	271	ret = libusb_get_device_list(ctx->libusb_ctx, &devlist);
	272	if (ret < 0) {
	273	sr_err("Cannot get device list: %s.", libusb_error_name(ret));
f2cd2deb FS	274	return SR_ERR;
f2cd2deb FS	275	}
520a20e9 GS	276	device_count = ret;
	277	if (!device_count) {
	278	sr_warn("Device list is empty. Cannot open.");
	279	return SR_ERR;
	280	}
	281	for (dev_idx = 0; dev_idx < device_count; dev_idx++) {
	282	dev = devlist[dev_idx];
	283	libusb_get_device_descriptor(dev, &des);
f2cd2deb	284
852c7d14 GS	285	if (des.idVendor != LA2016_VID \|\| des.idProduct != LA2016_PID)
	286	continue;
	287	if (des.iProduct != LA2016_IPRODUCT_INDEX)
f2cd2deb FS	288	continue;
f2cd2deb FS	289
520a20e9 GS	290	check_conn = sdi->status == SR_ST_INITIALIZING;
	291	check_conn \|= sdi->status == SR_ST_INACTIVE;
	292	if (check_conn) {
96dc954e	293	/* Check physical USB bus/port address. */
520a20e9 GS	294	ret = usb_get_port_path(dev, conn_id, sizeof(conn_id));
520a20e9 GS	295	if (ret < 0)
f2cd2deb	296	continue;
520a20e9	297	if (strcmp(sdi->connection_id, conn_id) != 0) {
96dc954e	298	/* Not the device we looked up before. */
f2cd2deb	299	continue;
96dc954e	300	}
f2cd2deb FS	301	}
f2cd2deb FS	302
520a20e9 GS	303	ret = libusb_open(dev, &usb->devhdl);
	304	if (ret != 0) {
	305	sr_err("Cannot open device: %s.",
	306	libusb_error_name(ret));
	307	ret = SR_ERR_IO;
f2cd2deb FS	308	break;
	309	}
	310
520a20e9 GS	311	if (usb->address == 0xff) {
	312	/*
	313	* First encounter after firmware upload.
	314	* Grab current address after enumeration.
	315	*/
	316	usb->address = libusb_get_device_address(dev);
	317	}
	318
f2cd2deb FS	319	ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
f2cd2deb FS	320	if (ret == LIBUSB_ERROR_BUSY) {
91f73872	321	sr_err("Cannot claim USB interface. Another program or driver using it?");
f2cd2deb FS	322	ret = SR_ERR;
	323	break;
	324	} else if (ret == LIBUSB_ERROR_NO_DEVICE) {
	325	sr_err("Device has been disconnected.");
	326	ret = SR_ERR;
	327	break;
	328	} else if (ret != 0) {
520a20e9 GS	329	sr_err("Cannot claim USB interface: %s.",
520a20e9 GS	330	libusb_error_name(ret));
f2cd2deb FS	331	ret = SR_ERR;
	332	break;
	333	}
	334
	335	if ((ret = la2016_init_device(sdi)) != SR_OK) {
91f73872	336	sr_err("Cannot initialize device.");
f2cd2deb FS	337	break;
	338	}
	339
	340	sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.",
	341	usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
f2cd2deb	342	ret = SR_OK;
f2cd2deb FS	343	break;
f2cd2deb FS	344	}
f2cd2deb FS	345	libusb_free_device_list(devlist, 1);
	346
	347	if (ret != SR_OK) {
	348	if (usb->devhdl) {
	349	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	350	libusb_close(usb->devhdl);
	351	usb->devhdl = NULL;
	352	}
520a20e9	353	return ret;
f2cd2deb FS	354	}
	355
	356	return SR_OK;
	357	}
	358
	359	static int dev_open(struct sr_dev_inst *sdi)
	360	{
	361	struct dev_context *devc;
22cb067a	362	uint64_t reset_done, now, elapsed_ms;
f2cd2deb FS	363	int ret;
	364
	365	devc = sdi->priv;
	366
	367	/*
22cb067a GS	368	* When the sigrok driver recently has uploaded MCU firmware,
	369	* then wait for the FX2 to re-enumerate. Allow the USB device
	370	* to vanish before it reappears. Timeouts are rough estimates
	371	* after all, the imprecise time of the last check (potentially
	372	* executes after the total check period) simplifies code paths
	373	* with optional diagnostics. And increases the probability of
	374	* successfully detecting "late/slow" devices.
f2cd2deb	375	*/
22cb067a	376	if (devc->fw_uploaded) {
f2cd2deb	377	sr_info("Waiting for device to reset after firmware upload.");
f2cd2deb	378	now = g_get_monotonic_time();
22cb067a GS	379	reset_done = devc->fw_uploaded + RENUM_GONE_DELAY_MS * 1000;
22cb067a GS	380	if (now < reset_done)
f2cd2deb	381	g_usleep(reset_done - now);
22cb067a GS	382	do {
	383	now = g_get_monotonic_time();
	384	elapsed_ms = (now - devc->fw_uploaded) / 1000;
	385	sr_spew("Waited %" PRIu64 "ms.", elapsed_ms);
	386	ret = la2016_dev_open(sdi);
	387	if (ret == SR_OK) {
	388	devc->fw_uploaded = 0;
f2cd2deb	389	break;
22cb067a GS	390	}
	391	g_usleep(RENUM_POLL_INTERVAL_MS * 1000);
	392	} while (elapsed_ms < RENUM_CHECK_PERIOD_MS);
f2cd2deb FS	393	if (ret != SR_OK) {
f2cd2deb FS	394	sr_err("Device failed to re-enumerate.");
520a20e9	395	return ret;
f2cd2deb	396	}
22cb067a	397	sr_info("Device came back after %" PRIi64 "ms.", elapsed_ms);
955ab604	398	} else {
f2cd2deb	399	ret = la2016_dev_open(sdi);
955ab604	400	}
f2cd2deb FS	401
f2cd2deb FS	402	if (ret != SR_OK) {
91f73872	403	sr_err("Cannot open device.");
520a20e9	404	return ret;
f2cd2deb FS	405	}
	406
	407	return SR_OK;
	408	}
	409
	410	static int dev_close(struct sr_dev_inst *sdi)
	411	{
	412	struct sr_usb_dev_inst *usb;
	413
	414	usb = sdi->conn;
	415
	416	if (!usb->devhdl)
	417	return SR_ERR_BUG;
	418
	419	la2016_deinit_device(sdi);
	420
	421	sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
	422	usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
	423	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	424	libusb_close(usb->devhdl);
	425	usb->devhdl = NULL;
	426
	427	return SR_OK;
	428	}
	429
955ab604 GS	430	static int config_get(uint32_t key, GVariant **data,
955ab604 GS	431	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
f2cd2deb FS	432	{
	433	struct dev_context *devc;
	434	struct sr_usb_dev_inst *usb;
	435	double rounded;
da2cb50d	436	const char *label;
f2cd2deb FS	437
	438	(void)cg;
	439
	440	if (!sdi)
	441	return SR_ERR_ARG;
	442	devc = sdi->priv;
	443
	444	switch (key) {
	445	case SR_CONF_CONN:
	446	if (!sdi->conn)
	447	return SR_ERR_ARG;
	448	usb = sdi->conn;
96dc954e GS	449	if (usb->address == 0xff) {
	450	/*
	451	* Device still needs to re-enumerate after firmware
	452	* upload, so we don't know its (future) address.
	453	*/
f2cd2deb	454	return SR_ERR;
955ab604	455	}
f2cd2deb FS	456	*data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
	457	break;
	458	case SR_CONF_SAMPLERATE:
	459	*data = g_variant_new_uint64(devc->cur_samplerate);
	460	break;
	461	case SR_CONF_LIMIT_SAMPLES:
	462	*data = g_variant_new_uint64(devc->limit_samples);
	463	break;
	464	case SR_CONF_CAPTURE_RATIO:
	465	*data = g_variant_new_uint64(devc->capture_ratio);
	466	break;
	467	case SR_CONF_VOLTAGE_THRESHOLD:
	468	rounded = (int)(devc->threshold_voltage / 0.1) * 0.1;
	469	*data = std_gvar_tuple_double(rounded, rounded + 0.1);
	470	return SR_OK;
	471	case SR_CONF_LOGIC_THRESHOLD:
da2cb50d GS	472	label = logic_threshold[devc->threshold_voltage_idx];
da2cb50d GS	473	*data = g_variant_new_string(label);
f2cd2deb FS	474	break;
	475	case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
	476	*data = g_variant_new_double(devc->threshold_voltage);
	477	break;
955ab604	478
f2cd2deb FS	479	default:
	480	return SR_ERR_NA;
	481	}
	482
	483	return SR_OK;
	484	}
	485
955ab604 GS	486	static int config_set(uint32_t key, GVariant *data,
955ab604 GS	487	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
f2cd2deb FS	488	{
	489	struct dev_context *devc;
	490	double low, high;
	491	int idx;
	492
	493	(void)cg;
	494
	495	devc = sdi->priv;
	496
	497	switch (key) {
	498	case SR_CONF_SAMPLERATE:
	499	devc->cur_samplerate = g_variant_get_uint64(data);
	500	break;
	501	case SR_CONF_LIMIT_SAMPLES:
	502	devc->limit_samples = g_variant_get_uint64(data);
	503	break;
	504	case SR_CONF_CAPTURE_RATIO:
	505	devc->capture_ratio = g_variant_get_uint64(data);
	506	break;
	507	case SR_CONF_VOLTAGE_THRESHOLD:
	508	g_variant_get(data, "(dd)", &low, &high);
	509	devc->threshold_voltage = (low + high) / 2.0;
da2cb50d	510	devc->threshold_voltage_idx = LOGIC_THRESHOLD_IDX_USER;
f2cd2deb FS	511	break;
f2cd2deb FS	512	case SR_CONF_LOGIC_THRESHOLD: {
411ad77c GS	513	idx = std_str_idx(data, ARRAY_AND_SIZE(logic_threshold));
411ad77c GS	514	if (idx < 0)
f2cd2deb	515	return SR_ERR_ARG;
da2cb50d	516	if (idx != LOGIC_THRESHOLD_IDX_USER) {
f2cd2deb FS	517	devc->threshold_voltage = logic_threshold_value[idx];
	518	}
	519	devc->threshold_voltage_idx = idx;
	520	break;
	521	}
	522	case SR_CONF_LOGIC_THRESHOLD_CUSTOM:
	523	devc->threshold_voltage = g_variant_get_double(data);
	524	break;
	525	default:
	526	return SR_ERR_NA;
	527	}
	528
	529	return SR_OK;
	530	}
	531
955ab604 GS	532	static int config_list(uint32_t key, GVariant **data,
955ab604 GS	533	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
f2cd2deb	534	{
8b172e78 KG	535	struct dev_context *devc;
8b172e78 KG	536
f2cd2deb FS	537	switch (key) {
	538	case SR_CONF_SCAN_OPTIONS:
	539	case SR_CONF_DEVICE_OPTIONS:
411ad77c GS	540	return STD_CONFIG_LIST(key, data, sdi, cg,
411ad77c GS	541	scanopts, drvopts, devopts);
f2cd2deb	542	case SR_CONF_SAMPLERATE:
fb28e72d MW	543	if (!sdi)
	544	return SR_ERR_ARG;
	545	devc = sdi->priv;
8b172e78 KG	546	if (devc->max_samplerate == SR_MHZ(200)) {
8b172e78 KG	547	*data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016));
1ed93110	548	} else {
8b172e78 KG	549	*data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016));
8b172e78 KG	550	}
f2cd2deb FS	551	break;
f2cd2deb FS	552	case SR_CONF_LIMIT_SAMPLES:
411ad77c GS	553	*data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN,
411ad77c GS	554	LA2016_NUM_SAMPLES_MAX);
f2cd2deb FS	555	break;
	556	case SR_CONF_VOLTAGE_THRESHOLD:
	557	*data = std_gvar_min_max_step_thresholds(
	558	LA2016_THR_VOLTAGE_MIN,
	559	LA2016_THR_VOLTAGE_MAX, 0.1);
	560	break;
	561	case SR_CONF_TRIGGER_MATCH:
	562	*data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
	563	break;
	564	case SR_CONF_LOGIC_THRESHOLD:
da2cb50d	565	*data = g_variant_new_strv(ARRAY_AND_SIZE(logic_threshold));
f2cd2deb FS	566	break;
	567	default:
	568	return SR_ERR_NA;
	569	}
	570
	571	return SR_OK;
	572	}
	573
f2cd2deb FS	574	static int configure_channels(const struct sr_dev_inst *sdi)
	575	{
	576	struct dev_context *devc;
084d6b92 GS	577	GSList *l;
084d6b92 GS	578	struct sr_channel *ch;
f2cd2deb FS	579
f2cd2deb FS	580	devc = sdi->priv;
084d6b92	581
f2cd2deb	582	devc->cur_channels = 0;
084d6b92 GS	583	for (l = sdi->channels; l; l = l->next) {
	584	ch = l->data;
	585	if (!ch->enabled)
f2cd2deb	586	continue;
084d6b92	587	devc->cur_channels \|= 1UL << ch->index;
f2cd2deb FS	588	}
	589
	590	return SR_OK;
	591	}
	592
	593	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	594	{
	595	struct sr_dev_driver *di;
	596	struct drv_context *drvc;
520a20e9	597	struct sr_context *ctx;
f2cd2deb FS	598	struct dev_context *devc;
	599	int ret;
	600
	601	di = sdi->driver;
	602	drvc = di->context;
520a20e9	603	ctx = drvc->sr_ctx;;
f2cd2deb FS	604	devc = sdi->priv;
	605
	606	if (configure_channels(sdi) != SR_OK) {
91f73872	607	sr_err("Cannot configure channels.");
f2cd2deb FS	608	return SR_ERR;
	609	}
	610
852c7d14	611	devc->convbuffer_size = LA2016_CONVBUFFER_SIZE;
411ad77c GS	612	devc->convbuffer = g_try_malloc(devc->convbuffer_size);
411ad77c GS	613	if (!devc->convbuffer) {
91f73872	614	sr_err("Cannot allocate conversion buffer.");
f2cd2deb FS	615	return SR_ERR_MALLOC;
	616	}
	617
411ad77c GS	618	ret = la2016_setup_acquisition(sdi);
411ad77c GS	619	if (ret != SR_OK) {
f2cd2deb FS	620	g_free(devc->convbuffer);
	621	devc->convbuffer = NULL;
	622	return ret;
	623	}
	624
411ad77c GS	625	ret = la2016_start_acquisition(sdi);
411ad77c GS	626	if (ret != SR_OK) {
3ebc1cb2	627	la2016_abort_acquisition(sdi);
520a20e9 GS	628	g_free(devc->convbuffer);
520a20e9 GS	629	devc->convbuffer = NULL;
f2cd2deb FS	630	return ret;
	631	}
	632
cf057ac4	633	devc->completion_seen = FALSE;
520a20e9	634	usb_source_add(sdi->session, ctx, 50,
388438e4	635	la2016_receive_data, (void *)sdi);
f2cd2deb FS	636
	637	std_session_send_df_header(sdi);
	638
	639	return SR_OK;
	640	}
	641
	642	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	643	{
	644	int ret;
	645
	646	ret = la2016_abort_acquisition(sdi);
f2cd2deb FS	647
	648	return ret;
	649	}
	650
	651	static struct sr_dev_driver kingst_la2016_driver_info = {
	652	.name = "kingst-la2016",
	653	.longname = "Kingst LA2016",
	654	.api_version = 1,
	655	.init = std_init,
	656	.cleanup = std_cleanup,
	657	.scan = scan,
	658	.dev_list = std_dev_list,
	659	.dev_clear = std_dev_clear,
	660	.config_get = config_get,
	661	.config_set = config_set,
	662	.config_list = config_list,
	663	.dev_open = dev_open,
	664	.dev_close = dev_close,
	665	.dev_acquisition_start = dev_acquisition_start,
	666	.dev_acquisition_stop = dev_acquisition_stop,
	667	.context = NULL,
	668	};
	669	SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info);