[libsigrok.git] / hardware / saleae-logic16 / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
 *
 * 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 <glib.h>
#include <libusb.h>
#include <stdlib.h>
#include <string.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"

#define LOGIC16_VID 0x21a9
#define LOGIC16_PID 0x1001
#define NUM_PROBES  16

#define USB_INTERFACE		0
#define USB_CONFIGURATION	1
#define FX2_FIRMWARE		FIRMWARE_DIR "/saleae-logic16-fx2.fw"

#define MAX_RENUM_DELAY_MS	3000
#define NUM_SIMUL_TRANSFERS	32


SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
static struct sr_dev_driver *di = &saleae_logic16_driver_info;

static const char *probe_names[NUM_PROBES + 1] = {
	"0", "1", "2", "3", "4", "5", "6", "7", "8",
	"9", "10", "11", "12", "13", "14", "15",
	NULL,
};

static const uint64_t samplerates[] = {
	SR_KHZ(500),
	SR_MHZ(1),
	SR_MHZ(2),
	SR_MHZ(4),
	SR_MHZ(5),
	SR_MHZ(8),
	SR_MHZ(10),
	SR_KHZ(12500),
	SR_MHZ(16),
	SR_MHZ(25),
	SR_MHZ(32),
	SR_MHZ(40),
	SR_MHZ(80),
	SR_MHZ(100),
};

static int init(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static gboolean check_conf_profile(libusb_device *dev)
{
	struct libusb_device_descriptor des;
	struct libusb_device_handle *hdl;
	gboolean ret;
	unsigned char strdesc[64];

	hdl = NULL;
	ret = FALSE;
	while (!ret) {
		/* Assume the FW has not been loaded, unless proven wrong. */
		if (libusb_get_device_descriptor(dev, &des) != 0)
			break;

		if (libusb_open(dev, &hdl) != 0)
			break;

		if (libusb_get_string_descriptor_ascii(hdl,
		    des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
			break;
		if (strcmp((const char *)strdesc, "Saleae LLC"))
			break;

		if (libusb_get_string_descriptor_ascii(hdl,
				des.iProduct, strdesc, sizeof(strdesc)) < 0)
			break;
		if (strcmp((const char *)strdesc, "Logic S/16"))
			break;

		/* If we made it here, it must be a configured Logic16. */
		ret = TRUE;
	}
	if (hdl)
		libusb_close(hdl);

	return ret;
}

static GSList *scan(GSList *options)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_dev_inst *sdi;
	struct sr_usb_dev_inst *usb;
	struct sr_probe *probe;
	struct sr_config *src;
	GSList *l, *devices, *conn_devices;
	struct libusb_device_descriptor des;
	libusb_device **devlist;
	int devcnt, ret, i, j;
	const char *conn;

	drvc = di->priv;

	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(drvc->sr_ctx->libusb_ctx, conn);
	else
		conn_devices = NULL;

	/* Find all Logic16 devices and upload firmware to them. */
	devices = NULL;
	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	for (i = 0; devlist[i]; i++) {
		if (conn) {
			usb = NULL;
			for (l = conn_devices; l; l = l->next) {
				usb = l->data;
				if (usb->bus == libusb_get_bus_number(devlist[i])
				    && usb->address == libusb_get_device_address(devlist[i]))
					break;
			}
			if (!l)
				/* This device matched none of the ones that
				 * matched the conn specification. */
				continue;
		}

		if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
			sr_warn("Failed to get device descriptor: %s.",
				libusb_error_name(ret));
			continue;
		}

		if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID)
			continue;

		devcnt = g_slist_length(drvc->instances);
		sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
				      "Saleae", "Logic16", NULL);
		if (!sdi)
			return NULL;
		sdi->driver = di;

		for (j = 0; probe_names[j]; j++) {
			if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
						   probe_names[j])))
				return NULL;
			sdi->probes = g_slist_append(sdi->probes, probe);
		}

		if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
			return NULL;
		sdi->priv = devc;
		drvc->instances = g_slist_append(drvc->instances, sdi);
		devices = g_slist_append(devices, sdi);

		if (check_conf_profile(devlist[i])) {
			/* Already has the firmware, so fix the new address. */
			sr_dbg("Found a Logic16 device.");
			sdi->status = SR_ST_INACTIVE;
			sdi->inst_type = SR_INST_USB;
			sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
							libusb_get_device_address(devlist[i]), NULL);
		} else {
			if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
						  FX2_FIRMWARE) == SR_OK)
				/* Store when this device's FW was updated. */
				devc->fw_updated = g_get_monotonic_time();
			else
				sr_err("Firmware upload failed for "
				       "device %d.", devcnt);
			sdi->inst_type = SR_INST_USB;
			sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]),
							 0xff, NULL);
		}
	}
	libusb_free_device_list(devlist, 1);
	g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);

	return devices;
}

static GSList *dev_list(void)
{
	struct drv_context *drvc;

	drvc = di->priv;

	return drvc->instances;
}

static int dev_clear(void)
{
	return std_dev_clear(di, NULL);
}

static int logic16_dev_open(struct sr_dev_inst *sdi)
{
	libusb_device **devlist;
	struct sr_usb_dev_inst *usb;
	struct libusb_device_descriptor des;
	struct dev_context *devc;
	struct drv_context *drvc;
	int ret, skip, i, device_count;

	drvc = di->priv;
	devc = sdi->priv;
	usb = sdi->conn;

	if (sdi->status == SR_ST_ACTIVE)
		/* Device is already in use. */
		return SR_ERR;

	skip = 0;
	device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	if (device_count < 0) {
		sr_err("Failed to get device list: %s.",
		       libusb_error_name(device_count));
		return SR_ERR;
	}

	for (i = 0; i < device_count; i++) {
		if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
			sr_err("Failed to get device descriptor: %s.",
			       libusb_error_name(ret));
			continue;
		}

		if (des.idVendor != LOGIC16_VID
		    || des.idProduct != LOGIC16_PID)
			continue;

		if (sdi->status == SR_ST_INITIALIZING) {
			if (skip != sdi->index) {
				/* Skip devices of this type that aren't the one we want. */
				skip += 1;
				continue;
			}
		} else if (sdi->status == SR_ST_INACTIVE) {
			/*
			 * This device is fully enumerated, so we need to find
			 * this device by vendor, product, bus and address.
			 */
			if (libusb_get_bus_number(devlist[i]) != usb->bus
				|| libusb_get_device_address(devlist[i]) != usb->address)
				/* This is not the one. */
				continue;
		}

		if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
			if (usb->address == 0xff)
				/*
				 * First time we touch this device after FW
				 * upload, so we don't know the address yet.
				 */
				usb->address = libusb_get_device_address(devlist[i]);
		} else {
			sr_err("Failed to open device: %s.",
			       libusb_error_name(ret));
			break;
		}

		if ((ret = saleae_logic16_init_device(sdi)) != SR_OK) {
			sr_err("Failed to init device.");
			break;
		}

		sdi->status = SR_ST_ACTIVE;
		sr_info("Opened device %d on %d.%d, "
			"interface %d.",
			sdi->index, usb->bus, usb->address,
			USB_INTERFACE);

		break;
	}
	libusb_free_device_list(devlist, 1);

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

	return SR_OK;
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct sr_usb_dev_inst *usb;
	struct dev_context *devc;
	int ret;
	int64_t timediff_us, timediff_ms;

	devc = sdi->priv;
	usb = sdi->conn;

	/*
	 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
	 * milliseconds for the FX2 to renumerate.
	 */
	ret = SR_ERR;
	if (devc->fw_updated > 0) {
		sr_info("Waiting for device to reset.");
		/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
		g_usleep(300 * 1000);
		timediff_ms = 0;
		while (timediff_ms < MAX_RENUM_DELAY_MS) {
			if ((ret = logic16_dev_open(sdi)) == SR_OK)
				break;
			g_usleep(100 * 1000);

			timediff_us = g_get_monotonic_time() - devc->fw_updated;
			timediff_ms = timediff_us / 1000;
			sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
		}
		if (ret != SR_OK) {
			sr_err("Device failed to renumerate.");
			return SR_ERR;
		}
		sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
	} else {
		sr_info("Firmware upload was not needed.");
		ret = logic16_dev_open(sdi);
	}

	if (ret != SR_OK) {
		sr_err("Unable to open device.");
		return SR_ERR;
	}

	ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
	if (ret != 0) {
		switch(ret) {
		case LIBUSB_ERROR_BUSY:
			sr_err("Unable to claim USB interface. Another "
			       "program or driver has already claimed it.");
			break;
		case LIBUSB_ERROR_NO_DEVICE:
			sr_err("Device has been disconnected.");
			break;
		default:
			sr_err("Unable to claim interface: %s.",
			       libusb_error_name(ret));
			break;
		}

		return SR_ERR;
	}

	if (devc->cur_samplerate == 0) {
		/* Samplerate hasn't been set; default to the slowest one. */
		devc->cur_samplerate = samplerates[0];
	}

	return SR_OK;
}

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

	usb = sdi->conn;
	if (usb->devhdl == NULL)
		return SR_ERR;

	sr_info("Closing device %d on %d.%d interface %d.",
		sdi->index, usb->bus, usb->address, USB_INTERFACE);
	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	libusb_close(usb->devhdl);
	usb->devhdl = NULL;
	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int cleanup(void)
{
	int ret;
	struct drv_context *drvc;

	if (!(drvc = di->priv))
		/* Can get called on an unused driver, doesn't matter. */
		return SR_OK;

	ret = dev_clear();
	g_free(drvc);
	di->priv = NULL;

	return ret;
}

static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	int ret;

	(void)sdi;
	(void)data;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_SAMPLERATE:
		if (!sdi)
			return SR_ERR;
		devc = sdi->priv;
		*data = g_variant_new_uint64(devc->cur_samplerate);
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

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

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

	devc = sdi->priv;

	ret = SR_OK;
	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;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

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

	(void)sdi;

	ret = SR_OK;
	switch (key) {
	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 ret;
}

static void abort_acquisition(struct dev_context *devc)
{
	int i;

	devc->num_samples = -1;

	for (i = devc->num_transfers - 1; i >= 0; i--) {
		if (devc->transfers[i])
			libusb_cancel_transfer(devc->transfers[i]);
	}
}

static unsigned int bytes_per_ms(struct dev_context *devc)
{
	return devc->cur_samplerate * devc->num_channels / 8000;
}

static size_t get_buffer_size(struct dev_context *devc)
{
	size_t s;

	/*
	 * The buffer should be large enough to hold 10ms of data and
	 * a multiple of 512.
	 */
	s = 10 * bytes_per_ms(devc);
	return (s + 511) & ~511;
}

static unsigned int get_number_of_transfers(struct dev_context *devc)
{
	unsigned int n;

	/* Total buffer size should be able to hold about 500ms of data. */
	n = 500 * bytes_per_ms(devc) / get_buffer_size(devc);

	if (n > NUM_SIMUL_TRANSFERS)
		return NUM_SIMUL_TRANSFERS;

	return n;
}

static unsigned int get_timeout(struct dev_context *devc)
{
	size_t total_size;
	unsigned int timeout;

	total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
	timeout = total_size / bytes_per_ms(devc);
	return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
}

static int configure_probes(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	struct sr_probe *probe;
	GSList *l;
	uint16_t probe_bit;

	devc = sdi->priv;

	devc->cur_channels = 0;
	devc->num_channels = 0;
	for (l = sdi->probes; l; l = l->next) {
		probe = (struct sr_probe *)l->data;
		if (probe->enabled == FALSE)
			continue;

		probe_bit = 1 << (probe->index);

		devc->cur_channels |= probe_bit;

#ifdef WORDS_BIGENDIAN
		/* Output logic data should be stored in little endian
		   format.  To speed things up during conversion, do the
		   switcharoo here instead. */

		probe_bit = 1 << (probe->index ^ 8);
#endif

		devc->channel_masks[devc->num_channels ++] = probe_bit;
	}

	return SR_OK;
}

static int receive_data(int fd, int revents, void *cb_data)
{
	struct timeval tv;
	struct dev_context *devc;
	struct drv_context *drvc;
	const struct sr_dev_inst *sdi;

	(void)fd;
	(void)revents;

	sdi = cb_data;
	drvc = di->priv;
	devc = sdi->priv;

	tv.tv_sec = tv.tv_usec = 0;
	libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);

	if (devc->num_samples == -2) {
		saleae_logic16_abort_acquisition(sdi);
		abort_acquisition(devc);
	}

	return TRUE;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi,
				 void *cb_data)
{
	struct dev_context *devc;
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	struct libusb_transfer *transfer;
	const struct libusb_pollfd **lupfd;
	unsigned int i, timeout, num_transfers;
	int ret;
	unsigned char *buf;
	size_t size, convsize;

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

	drvc = di->priv;
	devc = sdi->priv;
	usb = sdi->conn;

	/* Configures devc->cur_channels */
	if (configure_probes(sdi) != SR_OK) {
		sr_err("Failed to configure probes.");
		return SR_ERR;
	}

	devc->cb_data = cb_data;
	devc->num_samples = 0;
	devc->empty_transfer_count = 0;
	devc->cur_channel = 0;
	memset(devc->channel_data, 0, sizeof(devc->channel_data));

	timeout = get_timeout(devc);
	num_transfers = get_number_of_transfers(devc);
	size = get_buffer_size(devc);
	convsize = (size / devc->num_channels + 2) * 16;
	devc->submitted_transfers = 0;
	devc->usbfd = NULL;

	devc->convbuffer_size = convsize;
	if (!(devc->convbuffer = g_try_malloc(convsize))) {
		sr_err("Conversion buffer malloc failed.");
		return SR_ERR_MALLOC;
	}

	devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
	if (!devc->transfers) {
		sr_err("USB transfers malloc failed.");
		g_free(devc->convbuffer);
		return SR_ERR_MALLOC;
	}

	if ((ret = saleae_logic16_setup_acquisition(sdi, devc->cur_samplerate,
						    devc->cur_channels)) != SR_OK) {
		g_free(devc->transfers);
		g_free(devc->convbuffer);
		return ret;
	}

	devc->num_transfers = num_transfers;
	for (i = 0; i < num_transfers; i++) {
		if (!(buf = g_try_malloc(size))) {
			sr_err("USB transfer buffer malloc failed.");
			if (devc->submitted_transfers)
				abort_acquisition(devc);
			else {
				g_free(devc->transfers);
				g_free(devc->convbuffer);
			}
			return SR_ERR_MALLOC;
		}
		transfer = libusb_alloc_transfer(0);
		libusb_fill_bulk_transfer(transfer, usb->devhdl,
				2 | LIBUSB_ENDPOINT_IN, buf, size,
				saleae_logic16_receive_transfer, devc, timeout);
		if ((ret = libusb_submit_transfer(transfer)) != 0) {
			sr_err("Failed to submit transfer: %s.",
			       libusb_error_name(ret));
			libusb_free_transfer(transfer);
			g_free(buf);
			abort_acquisition(devc);
			return SR_ERR;
		}
		devc->transfers[i] = transfer;
		devc->submitted_transfers++;
	}

	lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
	for (i = 0; lupfd[i]; i++);
	if (!(devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1)))) {
		abort_acquisition(devc);
		free(lupfd);
		return SR_ERR;
	}
	for (i = 0; lupfd[i]; i++) {
		sr_source_add(lupfd[i]->fd, lupfd[i]->events,
			      timeout, receive_data, (void *)sdi);
		devc->usbfd[i] = lupfd[i]->fd;
	}
	devc->usbfd[i] = -1;
	free(lupfd);

	/* Send header packet to the session bus. */
	std_session_send_df_header(cb_data, LOG_PREFIX);

	if ((ret = saleae_logic16_start_acquisition(sdi)) != SR_OK) {
		abort_acquisition(devc);
		return ret;
	}

	return SR_OK;
}

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

	(void)cb_data;

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

	ret = saleae_logic16_abort_acquisition(sdi);

	abort_acquisition(sdi->priv);

	return ret;
}

SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = {
	.name = "saleae-logic16",
	.longname = "Saleae Logic16",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = 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,
	.priv = NULL,
};
Commit	Line	Data
c463dcf0 MC	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
	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 3 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
f6a21fa5 MC	20	#include <glib.h>
	21	#include <libusb.h>
	22	#include <stdlib.h>
	23	#include <string.h>
	24	#include "libsigrok.h"
	25	#include "libsigrok-internal.h"
c463dcf0 MC	26	#include "protocol.h"
c463dcf0 MC	27
f6a21fa5 MC	28	#define LOGIC16_VID 0x21a9
	29	#define LOGIC16_PID 0x1001
	30	#define NUM_PROBES 16
	31
5eea4305 MC	32	#define USB_INTERFACE 0
	33	#define USB_CONFIGURATION 1
	34	#define FX2_FIRMWARE FIRMWARE_DIR "/saleae-logic16-fx2.fw"
	35
	36	#define MAX_RENUM_DELAY_MS 3000
7b5daad4	37	#define NUM_SIMUL_TRANSFERS 32
5eea4305 MC	38
5eea4305 MC	39
c463dcf0 MC	40	SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
	41	static struct sr_dev_driver *di = &saleae_logic16_driver_info;
	42
f6a21fa5 MC	43	static const char *probe_names[NUM_PROBES + 1] = {
	44	"0", "1", "2", "3", "4", "5", "6", "7", "8",
	45	"9", "10", "11", "12", "13", "14", "15",
	46	NULL,
	47	};
c463dcf0	48
7b5daad4 MC	49	static const uint64_t samplerates[] = {
	50	SR_KHZ(500),
	51	SR_MHZ(1),
	52	SR_MHZ(2),
	53	SR_MHZ(4),
	54	SR_MHZ(5),
	55	SR_MHZ(8),
	56	SR_MHZ(10),
	57	SR_KHZ(12500),
	58	SR_MHZ(16),
	59	SR_MHZ(25),
	60	SR_MHZ(32),
	61	SR_MHZ(40),
	62	SR_MHZ(80),
	63	SR_MHZ(100),
	64	};
	65
c463dcf0 MC	66	static int init(struct sr_context *sr_ctx)
	67	{
	68	return std_init(sr_ctx, di, LOG_PREFIX);
	69	}
	70
5eea4305 MC	71	static gboolean check_conf_profile(libusb_device *dev)
	72	{
	73	struct libusb_device_descriptor des;
	74	struct libusb_device_handle *hdl;
	75	gboolean ret;
	76	unsigned char strdesc[64];
	77
	78	hdl = NULL;
	79	ret = FALSE;
	80	while (!ret) {
	81	/* Assume the FW has not been loaded, unless proven wrong. */
	82	if (libusb_get_device_descriptor(dev, &des) != 0)
	83	break;
	84
	85	if (libusb_open(dev, &hdl) != 0)
	86	break;
	87
	88	if (libusb_get_string_descriptor_ascii(hdl,
	89	des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
	90	break;
	91	if (strcmp((const char *)strdesc, "Saleae LLC"))
	92	break;
	93
	94	if (libusb_get_string_descriptor_ascii(hdl,
	95	des.iProduct, strdesc, sizeof(strdesc)) < 0)
	96	break;
	97	if (strcmp((const char *)strdesc, "Logic S/16"))
	98	break;
	99
	100	/* If we made it here, it must be a configured Logic16. */
	101	ret = TRUE;
	102	}
	103	if (hdl)
	104	libusb_close(hdl);
	105
	106	return ret;
	107	}
	108
c463dcf0 MC	109	static GSList scan(GSList options)
	110	{
	111	struct drv_context *drvc;
f6a21fa5 MC	112	struct dev_context *devc;
f6a21fa5 MC	113	struct sr_dev_inst *sdi;
5eea4305	114	struct sr_usb_dev_inst *usb;
f6a21fa5	115	struct sr_probe *probe;
5eea4305 MC	116	struct sr_config *src;
5eea4305 MC	117	GSList l, devices, *conn_devices;
f6a21fa5 MC	118	struct libusb_device_descriptor des;
f6a21fa5 MC	119	libusb_device **devlist;
5eea4305 MC	120	int devcnt, ret, i, j;
5eea4305 MC	121	const char *conn;
c463dcf0	122
c463dcf0	123	drvc = di->priv;
c463dcf0	124
5eea4305 MC	125	conn = NULL;
	126	for (l = options; l; l = l->next) {
	127	src = l->data;
	128	switch (src->key) {
	129	case SR_CONF_CONN:
	130	conn = g_variant_get_string(src->data, NULL);
	131	break;
	132	}
	133	}
	134	if (conn)
	135	conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
	136	else
	137	conn_devices = NULL;
	138
	139	/* Find all Logic16 devices and upload firmware to them. */
f6a21fa5 MC	140	devices = NULL;
	141	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	142	for (i = 0; devlist[i]; i++) {
5eea4305 MC	143	if (conn) {
	144	usb = NULL;
	145	for (l = conn_devices; l; l = l->next) {
	146	usb = l->data;
	147	if (usb->bus == libusb_get_bus_number(devlist[i])
	148	&& usb->address == libusb_get_device_address(devlist[i]))
	149	break;
	150	}
	151	if (!l)
	152	/* This device matched none of the ones that
	153	* matched the conn specification. */
	154	continue;
	155	}
	156
	157	if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
	158	sr_warn("Failed to get device descriptor: %s.",
	159	libusb_error_name(ret));
f6a21fa5 MC	160	continue;
	161	}
	162
	163	if (des.idVendor != LOGIC16_VID \|\| des.idProduct != LOGIC16_PID)
	164	continue;
	165
	166	devcnt = g_slist_length(drvc->instances);
5eea4305 MC	167	sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
	168	"Saleae", "Logic16", NULL);
	169	if (!sdi)
f6a21fa5 MC	170	return NULL;
	171	sdi->driver = di;
	172
f6a21fa5 MC	173	for (j = 0; probe_names[j]; j++) {
	174	if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
	175	probe_names[j])))
	176	return NULL;
	177	sdi->probes = g_slist_append(sdi->probes, probe);
	178	}
	179
5eea4305	180	if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
f6a21fa5	181	return NULL;
5eea4305	182	sdi->priv = devc;
f6a21fa5 MC	183	drvc->instances = g_slist_append(drvc->instances, sdi);
f6a21fa5 MC	184	devices = g_slist_append(devices, sdi);
5eea4305 MC	185
	186	if (check_conf_profile(devlist[i])) {
	187	/* Already has the firmware, so fix the new address. */
	188	sr_dbg("Found a Logic16 device.");
	189	sdi->status = SR_ST_INACTIVE;
	190	sdi->inst_type = SR_INST_USB;
	191	sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
	192	libusb_get_device_address(devlist[i]), NULL);
	193	} else {
	194	if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
	195	FX2_FIRMWARE) == SR_OK)
	196	/* Store when this device's FW was updated. */
	197	devc->fw_updated = g_get_monotonic_time();
	198	else
	199	sr_err("Firmware upload failed for "
	200	"device %d.", devcnt);
	201	sdi->inst_type = SR_INST_USB;
	202	sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]),
	203	0xff, NULL);
	204	}
f6a21fa5 MC	205	}
f6a21fa5 MC	206	libusb_free_device_list(devlist, 1);
5eea4305	207	g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
c463dcf0 MC	208
	209	return devices;
	210	}
	211
	212	static GSList *dev_list(void)
	213	{
	214	struct drv_context *drvc;
	215
	216	drvc = di->priv;
	217
	218	return drvc->instances;
	219	}
	220
	221	static int dev_clear(void)
	222	{
	223	return std_dev_clear(di, NULL);
	224	}
	225
5eea4305 MC	226	static int logic16_dev_open(struct sr_dev_inst *sdi)
	227	{
	228	libusb_device **devlist;
	229	struct sr_usb_dev_inst *usb;
	230	struct libusb_device_descriptor des;
	231	struct dev_context *devc;
	232	struct drv_context *drvc;
	233	int ret, skip, i, device_count;
	234
	235	drvc = di->priv;
	236	devc = sdi->priv;
	237	usb = sdi->conn;
	238
	239	if (sdi->status == SR_ST_ACTIVE)
	240	/* Device is already in use. */
	241	return SR_ERR;
	242
	243	skip = 0;
	244	device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	245	if (device_count < 0) {
	246	sr_err("Failed to get device list: %s.",
	247	libusb_error_name(device_count));
	248	return SR_ERR;
	249	}
	250
	251	for (i = 0; i < device_count; i++) {
	252	if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
	253	sr_err("Failed to get device descriptor: %s.",
	254	libusb_error_name(ret));
	255	continue;
	256	}
	257
	258	if (des.idVendor != LOGIC16_VID
	259	\|\| des.idProduct != LOGIC16_PID)
	260	continue;
	261
	262	if (sdi->status == SR_ST_INITIALIZING) {
	263	if (skip != sdi->index) {
	264	/* Skip devices of this type that aren't the one we want. */
	265	skip += 1;
	266	continue;
	267	}
	268	} else if (sdi->status == SR_ST_INACTIVE) {
	269	/*
	270	* This device is fully enumerated, so we need to find
	271	* this device by vendor, product, bus and address.
	272	*/
	273	if (libusb_get_bus_number(devlist[i]) != usb->bus
	274	\|\| libusb_get_device_address(devlist[i]) != usb->address)
	275	/* This is not the one. */
	276	continue;
	277	}
	278
	279	if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
	280	if (usb->address == 0xff)
	281	/*
	282	* First time we touch this device after FW
	283	* upload, so we don't know the address yet.
	284	*/
	285	usb->address = libusb_get_device_address(devlist[i]);
	286	} else {
	287	sr_err("Failed to open device: %s.",
	288	libusb_error_name(ret));
	289	break;
290	}
291
15abcf0f MC	292	if ((ret = saleae_logic16_init_device(sdi)) != SR_OK) {
	293	sr_err("Failed to init device.");
	294	break;
	295	}
	296
5eea4305 MC	297	sdi->status = SR_ST_ACTIVE;
	298	sr_info("Opened device %d on %d.%d, "
	299	"interface %d.",
	300	sdi->index, usb->bus, usb->address,
	301	USB_INTERFACE);
	302
	303	break;
	304	}
	305	libusb_free_device_list(devlist, 1);
	306
	307	if (sdi->status != SR_ST_ACTIVE)
	308	return SR_ERR;
	309
	310	return SR_OK;
	311	}
	312
c463dcf0 MC	313	static int dev_open(struct sr_dev_inst *sdi)
c463dcf0 MC	314	{
5eea4305 MC	315	struct sr_usb_dev_inst *usb;
	316	struct dev_context *devc;
	317	int ret;
	318	int64_t timediff_us, timediff_ms;
	319
	320	devc = sdi->priv;
	321	usb = sdi->conn;
	322
	323	/*
	324	* If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
	325	* milliseconds for the FX2 to renumerate.
	326	*/
	327	ret = SR_ERR;
	328	if (devc->fw_updated > 0) {
	329	sr_info("Waiting for device to reset.");
	330	/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
	331	g_usleep(300 * 1000);
	332	timediff_ms = 0;
	333	while (timediff_ms < MAX_RENUM_DELAY_MS) {
	334	if ((ret = logic16_dev_open(sdi)) == SR_OK)
	335	break;
	336	g_usleep(100 * 1000);
	337
	338	timediff_us = g_get_monotonic_time() - devc->fw_updated;
	339	timediff_ms = timediff_us / 1000;
	340	sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
	341	}
	342	if (ret != SR_OK) {
	343	sr_err("Device failed to renumerate.");
	344	return SR_ERR;
	345	}
	346	sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
	347	} else {
	348	sr_info("Firmware upload was not needed.");
	349	ret = logic16_dev_open(sdi);
	350	}
	351
	352	if (ret != SR_OK) {
	353	sr_err("Unable to open device.");
	354	return SR_ERR;
	355	}
	356
	357	ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
	358	if (ret != 0) {
	359	switch(ret) {
	360	case LIBUSB_ERROR_BUSY:
	361	sr_err("Unable to claim USB interface. Another "
	362	"program or driver has already claimed it.");
	363	break;
	364	case LIBUSB_ERROR_NO_DEVICE:
	365	sr_err("Device has been disconnected.");
	366	break;
	367	default:
	368	sr_err("Unable to claim interface: %s.",
	369	libusb_error_name(ret));
	370	break;
	371	}
c463dcf0	372
5eea4305 MC	373	return SR_ERR;
5eea4305 MC	374	}
c463dcf0	375
5eea4305 MC	376	if (devc->cur_samplerate == 0) {
5eea4305 MC	377	/* Samplerate hasn't been set; default to the slowest one. */
7b5daad4	378	devc->cur_samplerate = samplerates[0];
5eea4305	379	}
c463dcf0 MC	380
	381	return SR_OK;
	382	}
	383
	384	static int dev_close(struct sr_dev_inst *sdi)
	385	{
5eea4305	386	struct sr_usb_dev_inst *usb;
c463dcf0	387
5eea4305 MC	388	usb = sdi->conn;
	389	if (usb->devhdl == NULL)
	390	return SR_ERR;
c463dcf0	391
5eea4305 MC	392	sr_info("Closing device %d on %d.%d interface %d.",
	393	sdi->index, usb->bus, usb->address, USB_INTERFACE);
	394	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	395	libusb_close(usb->devhdl);
	396	usb->devhdl = NULL;
c463dcf0 MC	397	sdi->status = SR_ST_INACTIVE;
	398
	399	return SR_OK;
	400	}
	401
	402	static int cleanup(void)
	403	{
f6a21fa5 MC	404	int ret;
f6a21fa5 MC	405	struct drv_context *drvc;
c463dcf0	406
f6a21fa5 MC	407	if (!(drvc = di->priv))
	408	/* Can get called on an unused driver, doesn't matter. */
	409	return SR_OK;
c463dcf0	410
f6a21fa5 MC	411	ret = dev_clear();
	412	g_free(drvc);
	413	di->priv = NULL;
	414
	415	return ret;
c463dcf0 MC	416	}
	417
	418	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi)
	419	{
7b5daad4	420	struct dev_context *devc;
c463dcf0 MC	421	int ret;
	422
	423	(void)sdi;
	424	(void)data;
	425
	426	ret = SR_OK;
	427	switch (key) {
7b5daad4 MC	428	case SR_CONF_SAMPLERATE:
	429	if (!sdi)
	430	return SR_ERR;
	431	devc = sdi->priv;
	432	*data = g_variant_new_uint64(devc->cur_samplerate);
	433	break;
c463dcf0 MC	434	default:
	435	return SR_ERR_NA;
	436	}
	437
	438	return ret;
	439	}
	440
	441	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi)
	442	{
7b5daad4	443	struct dev_context *devc;
c463dcf0 MC	444	int ret;
c463dcf0 MC	445
c463dcf0 MC	446	if (sdi->status != SR_ST_ACTIVE)
	447	return SR_ERR_DEV_CLOSED;
	448
7b5daad4 MC	449	devc = sdi->priv;
7b5daad4 MC	450
c463dcf0 MC	451	ret = SR_OK;
c463dcf0 MC	452	switch (key) {
7b5daad4 MC	453	case SR_CONF_SAMPLERATE:
	454	devc->cur_samplerate = g_variant_get_uint64(data);
	455	break;
	456	case SR_CONF_LIMIT_SAMPLES:
	457	devc->limit_samples = g_variant_get_uint64(data);
	458	break;
c463dcf0 MC	459	default:
	460	ret = SR_ERR_NA;
	461	}
	462
	463	return ret;
	464	}
	465
	466	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	467	{
7b5daad4 MC	468	GVariant *gvar;
7b5daad4 MC	469	GVariantBuilder gvb;
c463dcf0 MC	470	int ret;
	471
	472	(void)sdi;
c463dcf0 MC	473
	474	ret = SR_OK;
	475	switch (key) {
7b5daad4 MC	476	case SR_CONF_SAMPLERATE:
	477	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	478	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
	479	ARRAY_SIZE(samplerates), sizeof(uint64_t));
	480	g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
	481	*data = g_variant_builder_end(&gvb);
	482	break;
c463dcf0 MC	483	default:
	484	return SR_ERR_NA;
	485	}
	486
	487	return ret;
	488	}
	489
7b5daad4 MC	490	static void abort_acquisition(struct dev_context *devc)
	491	{
	492	int i;
	493
	494	devc->num_samples = -1;
	495
	496	for (i = devc->num_transfers - 1; i >= 0; i--) {
	497	if (devc->transfers[i])
	498	libusb_cancel_transfer(devc->transfers[i]);
	499	}
	500	}
	501
	502	static unsigned int bytes_per_ms(struct dev_context *devc)
	503	{
	504	return devc->cur_samplerate * devc->num_channels / 8000;
	505	}
	506
	507	static size_t get_buffer_size(struct dev_context *devc)
	508	{
	509	size_t s;
	510
	511	/*
	512	* The buffer should be large enough to hold 10ms of data and
	513	* a multiple of 512.
	514	*/
	515	s = 10 * bytes_per_ms(devc);
	516	return (s + 511) & ~511;
	517	}
	518
	519	static unsigned int get_number_of_transfers(struct dev_context *devc)
	520	{
	521	unsigned int n;
	522
	523	/* Total buffer size should be able to hold about 500ms of data. */
	524	n = 500 * bytes_per_ms(devc) / get_buffer_size(devc);
	525
	526	if (n > NUM_SIMUL_TRANSFERS)
	527	return NUM_SIMUL_TRANSFERS;
	528
	529	return n;
	530	}
	531
	532	static unsigned int get_timeout(struct dev_context *devc)
	533	{
	534	size_t total_size;
	535	unsigned int timeout;
	536
	537	total_size = get_buffer_size(devc) * get_number_of_transfers(devc);
	538	timeout = total_size / bytes_per_ms(devc);
	539	return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
	540	}
	541
	542	static int configure_probes(const struct sr_dev_inst *sdi)
	543	{
	544	struct dev_context *devc;
	545	struct sr_probe *probe;
	546	GSList *l;
	547	uint16_t probe_bit;
	548
	549	devc = sdi->priv;
	550
	551	devc->cur_channels = 0;
	552	devc->num_channels = 0;
	553	for (l = sdi->probes; l; l = l->next) {
554	probe = (struct sr_probe *)l->data;
555	if (probe->enabled == FALSE)
556	continue;
557
558	probe_bit = 1 << (probe->index);
559
560	devc->cur_channels \|= probe_bit;
561
562	#ifdef WORDS_BIGENDIAN
563	/* Output logic data should be stored in little endian
564	format. To speed things up during conversion, do the
565	switcharoo here instead. */
566
567	probe_bit = 1 << (probe->index ^ 8);
568	#endif
569
570	devc->channel_masks[devc->num_channels ++] = probe_bit;
571	}
572
573	return SR_OK;
574	}
575
576	static int receive_data(int fd, int revents, void *cb_data)
577	{
578	struct timeval tv;
579	struct dev_context *devc;
580	struct drv_context *drvc;
581	const struct sr_dev_inst *sdi;
582
583	(void)fd;
584	(void)revents;
585
586	sdi = cb_data;
587	drvc = di->priv;
588	devc = sdi->priv;
589
590	tv.tv_sec = tv.tv_usec = 0;
591	libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
592
593	if (devc->num_samples == -2) {
594	saleae_logic16_abort_acquisition(sdi);
595	abort_acquisition(devc);
596	}
597
598	return TRUE;
599	}
600
c463dcf0	601	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
7b5daad4	602	void *cb_data)
c463dcf0	603	{
7b5daad4 MC	604	struct dev_context *devc;
	605	struct drv_context *drvc;
	606	struct sr_usb_dev_inst *usb;
	607	struct libusb_transfer *transfer;
	608	const struct libusb_pollfd **lupfd;
	609	unsigned int i, timeout, num_transfers;
	610	int ret;
	611	unsigned char *buf;
	612	size_t size, convsize;
c463dcf0 MC	613
	614	if (sdi->status != SR_ST_ACTIVE)
	615	return SR_ERR_DEV_CLOSED;
	616
7b5daad4 MC	617	drvc = di->priv;
	618	devc = sdi->priv;
	619	usb = sdi->conn;
	620
	621	/* Configures devc->cur_channels */
	622	if (configure_probes(sdi) != SR_OK) {
	623	sr_err("Failed to configure probes.");
	624	return SR_ERR;
	625	}
	626
	627	devc->cb_data = cb_data;
	628	devc->num_samples = 0;
	629	devc->empty_transfer_count = 0;
	630	devc->cur_channel = 0;
	631	memset(devc->channel_data, 0, sizeof(devc->channel_data));
	632
	633	timeout = get_timeout(devc);
	634	num_transfers = get_number_of_transfers(devc);
	635	size = get_buffer_size(devc);
	636	convsize = (size / devc->num_channels + 2) * 16;
	637	devc->submitted_transfers = 0;
	638	devc->usbfd = NULL;
	639
	640	devc->convbuffer_size = convsize;
	641	if (!(devc->convbuffer = g_try_malloc(convsize))) {
	642	sr_err("Conversion buffer malloc failed.");
	643	return SR_ERR_MALLOC;
	644	}
	645
	646	devc->transfers = g_try_malloc0(sizeof(devc->transfers) num_transfers);
	647	if (!devc->transfers) {
	648	sr_err("USB transfers malloc failed.");
	649	g_free(devc->convbuffer);
	650	return SR_ERR_MALLOC;
	651	}
	652
	653	if ((ret = saleae_logic16_setup_acquisition(sdi, devc->cur_samplerate,
	654	devc->cur_channels)) != SR_OK) {
	655	g_free(devc->transfers);
	656	g_free(devc->convbuffer);
	657	return ret;
	658	}
	659
	660	devc->num_transfers = num_transfers;
	661	for (i = 0; i < num_transfers; i++) {
	662	if (!(buf = g_try_malloc(size))) {
	663	sr_err("USB transfer buffer malloc failed.");
	664	if (devc->submitted_transfers)
	665	abort_acquisition(devc);
	666	else {
	667	g_free(devc->transfers);
	668	g_free(devc->convbuffer);
	669	}
	670	return SR_ERR_MALLOC;
	671	}
	672	transfer = libusb_alloc_transfer(0);
	673	libusb_fill_bulk_transfer(transfer, usb->devhdl,
	674	2 \| LIBUSB_ENDPOINT_IN, buf, size,
	675	saleae_logic16_receive_transfer, devc, timeout);
	676	if ((ret = libusb_submit_transfer(transfer)) != 0) {
	677	sr_err("Failed to submit transfer: %s.",
	678	libusb_error_name(ret));
	679	libusb_free_transfer(transfer);
	680	g_free(buf);
681	abort_acquisition(devc);
682	return SR_ERR;
683	}
684	devc->transfers[i] = transfer;
685	devc->submitted_transfers++;
686	}
687
688	lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
689	for (i = 0; lupfd[i]; i++);
690	if (!(devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1)))) {
691	abort_acquisition(devc);
692	free(lupfd);
693	return SR_ERR;
694	}
695	for (i = 0; lupfd[i]; i++) {
696	sr_source_add(lupfd[i]->fd, lupfd[i]->events,
697	timeout, receive_data, (void *)sdi);
698	devc->usbfd[i] = lupfd[i]->fd;
699	}
700	devc->usbfd[i] = -1;
701	free(lupfd);
702
703	/* Send header packet to the session bus. */
704	std_session_send_df_header(cb_data, LOG_PREFIX);
705
706	if ((ret = saleae_logic16_start_acquisition(sdi)) != SR_OK) {
707	abort_acquisition(devc);
708	return ret;
709	}
c463dcf0 MC	710
	711	return SR_OK;
	712	}
	713
	714	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	715	{
7b5daad4 MC	716	int ret;
7b5daad4 MC	717
c463dcf0 MC	718	(void)cb_data;
	719
	720	if (sdi->status != SR_ST_ACTIVE)
	721	return SR_ERR_DEV_CLOSED;
	722
7b5daad4	723	ret = saleae_logic16_abort_acquisition(sdi);
c463dcf0	724
7b5daad4 MC	725	abort_acquisition(sdi->priv);
	726
	727	return ret;
c463dcf0 MC	728	}
	729
	730	SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = {
	731	.name = "saleae-logic16",
	732	.longname = "Saleae Logic16",
	733	.api_version = 1,
	734	.init = init,
	735	.cleanup = cleanup,
	736	.scan = scan,
	737	.dev_list = dev_list,
	738	.dev_clear = dev_clear,
	739	.config_get = config_get,
	740	.config_set = config_set,
	741	.config_list = config_list,
	742	.dev_open = dev_open,
	743	.dev_close = dev_close,
	744	.dev_acquisition_start = dev_acquisition_start,
	745	.dev_acquisition_stop = dev_acquisition_stop,
	746	.priv = NULL,
	747	};