[libsigrok.git] / src / hardware / ikalogic-scanalogic2 / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Marc Schink <sigrok-dev@marcschink.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 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "protocol.h"

static const uint32_t devopts[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	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_RISING,
	SR_TRIGGER_FALLING,
	SR_TRIGGER_EDGE,
};

SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = {
	SR_KHZ(1.25),
	SR_KHZ(10),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(250),
	SR_KHZ(500),
	SR_MHZ(1),
	SR_MHZ(2.5),
	SR_MHZ(5),
	SR_MHZ(10),
	SR_MHZ(20),
};

static const char *channel_names[] = {
	"0", "1", "2", "3",
};

SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;

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

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	GSList *usb_devices, *devices, *l;
	struct drv_context *drvc;
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	struct device_info dev_info;
	unsigned int i;
	int ret;

	(void)options;

	devices = NULL;
	drvc = di->context;
	drvc->instances = NULL;

	usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID);

	if (!usb_devices)
		return NULL;

	for (l = usb_devices; l; l = l->next) {
		usb = l->data;

		if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) {
			sr_warn("Failed to get device information: %d.", ret);
			sr_usb_dev_inst_free(usb);
			continue;
		}

		devc = g_malloc0(sizeof(struct dev_context));

		if (!(devc->xfer_in = libusb_alloc_transfer(0))) {
			sr_err("Transfer malloc failed.");
			sr_usb_dev_inst_free(usb);
			g_free(devc);
			continue;
		}

		if (!(devc->xfer_out = libusb_alloc_transfer(0))) {
			sr_err("Transfer malloc failed.");
			sr_usb_dev_inst_free(usb);
			libusb_free_transfer(devc->xfer_in);
			g_free(devc);
			continue;
		}

		sdi = g_malloc0(sizeof(struct sr_dev_inst));
		sdi->status = SR_ST_INACTIVE;
		sdi->vendor = g_strdup(VENDOR_NAME);
		sdi->model = g_strdup(MODEL_NAME);
		sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor);
		sdi->serial_num = g_strdup_printf("%d", dev_info.serial);
		sdi->priv = devc;
		sdi->driver = di;
		sdi->inst_type = SR_INST_USB;
		sdi->conn = usb;

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

		devc->state = STATE_IDLE;
		devc->next_state = STATE_IDLE;

		/* Set default samplerate. */
		sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE);

		/* Set default capture ratio. */
		devc->capture_ratio = 0;

		/* Set default after trigger delay. */
		devc->after_trigger_delay = 0;

		memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE +
			PACKET_LENGTH);
		memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE +
			PACKET_LENGTH);

		libusb_fill_control_setup(devc->xfer_buf_in,
			USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT,
			USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
			PACKET_LENGTH);
		libusb_fill_control_setup(devc->xfer_buf_out,
			USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT,
			USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
			PACKET_LENGTH);

		devc->xfer_data_in = devc->xfer_buf_in +
			LIBUSB_CONTROL_SETUP_SIZE;
		devc->xfer_data_out = devc->xfer_buf_out +
			LIBUSB_CONTROL_SETUP_SIZE;

		drvc->instances = g_slist_append(drvc->instances, sdi);
		devices = g_slist_append(devices, sdi);
	}

	g_slist_free(usb_devices);

	return devices;
}

static GSList *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->context))->instances;
}

static void clear_dev_context(void *priv)
{
	struct dev_context *devc;

	devc = priv;

	sr_dbg("Device context cleared.");

	libusb_free_transfer(devc->xfer_in);
	libusb_free_transfer(devc->xfer_out);
	g_free(devc);
}

static int dev_clear(const struct sr_dev_driver *di)
{
	return std_dev_clear(di, &clear_dev_context);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct sr_dev_driver *di = sdi->driver;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	uint8_t buffer[PACKET_LENGTH];
	int ret;

	if (!(drvc = di->context)) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

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

	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
		return SR_ERR;

	/*
	 * Determine if a kernel driver is active on this interface and, if so,
	 * detach it.
	 */
	if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
		ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE);
		if (ret < 0) {
			sr_err("Failed to detach kernel driver: %s.",
				libusb_error_name(ret));
			return SR_ERR;
		}
	}

	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) {
		sr_err("Failed to claim interface: %s.",
			libusb_error_name(ret));
		return SR_ERR;
	}

	libusb_fill_control_transfer(devc->xfer_in, usb->devhdl,
		devc->xfer_buf_in, sl2_receive_transfer_in,
		sdi, USB_TIMEOUT_MS);

	libusb_fill_control_transfer(devc->xfer_out, usb->devhdl,
		devc->xfer_buf_out, sl2_receive_transfer_out,
		sdi, USB_TIMEOUT_MS);

	memset(buffer, 0, sizeof(buffer));

	buffer[0] = CMD_RESET;
	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
		sr_err("Device reset failed: %s.", libusb_error_name(ret));
		return SR_ERR;
	}

	/*
	 * Set the device to idle state. If the device is not in idle state it
	 * possibly will reset itself after a few seconds without being used
	 * and thereby close the connection.
	 */
	buffer[0] = CMD_IDLE;
	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
		sr_err("Failed to set device in idle state: %s.",
			libusb_error_name(ret));
		return SR_ERR;
	}

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_dev_driver *di = sdi->driver;
	struct sr_usb_dev_inst *usb;

	if (!di->context) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

	usb = sdi->conn;

	if (!usb->devhdl)
		return SR_OK;

	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(const struct sr_dev_driver *di)
{
	return dev_clear(di);
}

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;
	int ret;

	(void)cg;

	ret = SR_OK;
	devc = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(devc->samplerate);
		break;
	case SR_CONF_CAPTURE_RATIO:
		*data = g_variant_new_uint64(devc->capture_ratio);
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	uint64_t samplerate, limit_samples, capture_ratio;
	int ret;

	(void)cg;

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

	ret = SR_OK;

	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
		limit_samples = g_variant_get_uint64(data);
		ret = sl2_set_limit_samples(sdi, limit_samples);
		break;
	case SR_CONF_SAMPLERATE:
		samplerate = g_variant_get_uint64(data);
		ret = sl2_set_samplerate(sdi, samplerate);
		break;
	case SR_CONF_CAPTURE_RATIO:
		capture_ratio = g_variant_get_uint64(data);
		ret = sl2_set_capture_ratio(sdi, capture_ratio);
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	GVariant *gvar, *grange[2];
	GVariantBuilder gvb;
	int ret;

	(void)sdi;
	(void)cg;

	ret = SR_OK;
	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	case SR_CONF_SAMPLERATE:
		g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
		gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
			sl2_samplerates, ARRAY_SIZE(sl2_samplerates),
			sizeof(uint64_t));
		g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
		*data = g_variant_builder_end(&gvb);
		break;
	case SR_CONF_TRIGGER_MATCH:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				trigger_matches, ARRAY_SIZE(trigger_matches),
				sizeof(int32_t));
		break;
	case SR_CONF_LIMIT_SAMPLES:
		grange[0] = g_variant_new_uint64(0);
		grange[1] = g_variant_new_uint64(MAX_SAMPLES);
		*data = g_variant_new_tuple(grange, 2);
		break;
	default:
		return SR_ERR_NA;
	}

	return ret;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
	struct sr_dev_driver *di = sdi->driver;
	struct drv_context *drvc;
	struct dev_context *devc;
	uint16_t trigger_bytes, tmp;
	unsigned int i, j;
	int ret;

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

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

	devc->cb_data = cb_data;
	devc->wait_data_ready_locked = TRUE;
	devc->stopping_in_progress = FALSE;
	devc->transfer_error = FALSE;
	devc->samples_processed = 0;
	devc->channel = 0;
	devc->sample_packet = 0;

	/*
	 * The trigger must be configured first because the calculation of the
	 * pre and post trigger samples depends on a configured trigger.
	 */
	sl2_convert_trigger(sdi);
	sl2_calculate_trigger_samples(sdi);

	trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes;

	/* Calculate the number of expected sample packets. */
	devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES;

	/* Round up the number of expected sample packets. */
	if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0)
		devc->num_sample_packets++;

	devc->num_enabled_channels = 0;

	/*
	 * Count the number of enabled channels and number them for a sequential
	 * access.
	 */
	for (i = 0, j = 0; i < NUM_CHANNELS; i++) {
		if (devc->channels[i]->enabled) {
			devc->num_enabled_channels++;
			devc->channel_map[j] = i;
			j++;
		}
	}

	sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels);

	/* Set up the transfer buffer for the acquisition. */
	devc->xfer_data_out[0] = CMD_SAMPLE;
	devc->xfer_data_out[1] = 0x00;

	tmp = GUINT16_TO_LE(devc->pre_trigger_bytes);
	memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp));

	tmp = GUINT16_TO_LE(devc->post_trigger_bytes);
	memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp));

	devc->xfer_data_out[6] = devc->samplerate_id;
	devc->xfer_data_out[7] = devc->trigger_type;
	devc->xfer_data_out[8] = devc->trigger_channel;
	devc->xfer_data_out[9] = 0x00;

	tmp = GUINT16_TO_LE(devc->after_trigger_delay);
	memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp));

	if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) {
		sr_err("Submit transfer failed: %s.", libusb_error_name(ret));
		return SR_ERR;
	}

	usb_source_add(sdi->session, drvc->sr_ctx, 100,
			ikalogic_scanalogic2_receive_data, (void *)sdi);

	sr_dbg("Acquisition started successfully.");

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

	devc->next_state = STATE_SAMPLE;

	return SR_OK;
}

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

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

	sr_dbg("Stopping acquisition.");

	sdi->status = SR_ST_STOPPING;

	return SR_OK;
}

SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
	.name = "ikalogic-scanalogic2",
	.longname = "IKALOGIC Scanalogic-2",
	.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,
	.context = NULL,
};
Commit	Line	Data
16e76bae MS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Marc Schink <sigrok-dev@marcschink.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 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
	20	#include "protocol.h"
	21
f254bc4b	22	static const uint32_t devopts[] = {
e52e712d	23	SR_CONF_LOGIC_ANALYZER,
5827f61b BV	24	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_LIST,
	25	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	26	SR_CONF_TRIGGER_MATCH \| SR_CONF_LIST,
	27	SR_CONF_CAPTURE_RATIO \| SR_CONF_GET \| SR_CONF_SET,
e52e712d MS	28	};
e52e712d MS	29
02d5c0d8 BV	30	static const int32_t trigger_matches[] = {
	31	SR_TRIGGER_RISING,
	32	SR_TRIGGER_FALLING,
	33	SR_TRIGGER_EDGE,
	34	};
	35
79914b3a	36	SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = {
e52e712d MS	37	SR_KHZ(1.25),
	38	SR_KHZ(10),
	39	SR_KHZ(50),
	40	SR_KHZ(100),
	41	SR_KHZ(250),
	42	SR_KHZ(500),
	43	SR_MHZ(1),
	44	SR_MHZ(2.5),
	45	SR_MHZ(5),
	46	SR_MHZ(10),
c824eb63	47	SR_MHZ(20),
e52e712d MS	48	};
e52e712d MS	49
53cda65a	50	static const char *channel_names[] = {
e52e712d	51	"0", "1", "2", "3",
e52e712d MS	52	};
e52e712d MS	53
16e76bae	54	SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
16e76bae	55
4f840ce9	56	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
16e76bae	57	{
e52e712d	58	return std_init(sr_ctx, di, LOG_PREFIX);
16e76bae MS	59	}
16e76bae MS	60
4f840ce9	61	static GSList scan(struct sr_dev_driver di, GSList *options)
16e76bae	62	{
e52e712d	63	GSList usb_devices, devices, *l;
16e76bae	64	struct drv_context *drvc;
e52e712d	65	struct sr_dev_inst *sdi;
e52e712d MS	66	struct dev_context *devc;
	67	struct sr_usb_dev_inst *usb;
	68	struct device_info dev_info;
dcd438ee UH	69	unsigned int i;
dcd438ee UH	70	int ret;
16e76bae MS	71
	72	(void)options;
	73
	74	devices = NULL;
41812aca	75	drvc = di->context;
16e76bae	76	drvc->instances = NULL;
e52e712d MS	77
	78	usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID);
	79
98fec29e	80	if (!usb_devices)
e52e712d MS	81	return NULL;
e52e712d MS	82
c824eb63	83	for (l = usb_devices; l; l = l->next) {
e52e712d MS	84	usb = l->data;
e52e712d MS	85
79914b3a UH	86	if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) {
79914b3a UH	87	sr_warn("Failed to get device information: %d.", ret);
e52e712d MS	88	sr_usb_dev_inst_free(usb);
	89	continue;
	90	}
	91
f57d8ffe	92	devc = g_malloc0(sizeof(struct dev_context));
e52e712d MS	93
	94	if (!(devc->xfer_in = libusb_alloc_transfer(0))) {
	95	sr_err("Transfer malloc failed.");
	96	sr_usb_dev_inst_free(usb);
	97	g_free(devc);
	98	continue;
	99	}
	100
	101	if (!(devc->xfer_out = libusb_alloc_transfer(0))) {
	102	sr_err("Transfer malloc failed.");
	103	sr_usb_dev_inst_free(usb);
	104	libusb_free_transfer(devc->xfer_in);
	105	g_free(devc);
	106	continue;
	107	}
	108
aac29cc1	109	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	110	sdi->status = SR_ST_INACTIVE;
	111	sdi->vendor = g_strdup(VENDOR_NAME);
	112	sdi->model = g_strdup(MODEL_NAME);
	113	sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor);
	114	sdi->serial_num = g_strdup_printf("%d", dev_info.serial);
e52e712d MS	115	sdi->priv = devc;
	116	sdi->driver = di;
	117	sdi->inst_type = SR_INST_USB;
	118	sdi->conn = usb;
	119
0f34cb47 UH	120	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
	121	devc->channels[i] = sr_channel_new(sdi, i,
	122	SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
e52e712d MS	123
	124	devc->state = STATE_IDLE;
	125	devc->next_state = STATE_IDLE;
	126
	127	/* Set default samplerate. */
79914b3a	128	sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE);
e52e712d MS	129
	130	/* Set default capture ratio. */
	131	devc->capture_ratio = 0;
	132
	133	/* Set default after trigger delay. */
	134	devc->after_trigger_delay = 0;
	135
	136	memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE +
	137	PACKET_LENGTH);
	138	memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE +
	139	PACKET_LENGTH);
	140
	141	libusb_fill_control_setup(devc->xfer_buf_in,
fb8d593c	142	USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT,
e52e712d MS	143	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	144	PACKET_LENGTH);
	145	libusb_fill_control_setup(devc->xfer_buf_out,
	146	USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT,
	147	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	148	PACKET_LENGTH);
	149
	150	devc->xfer_data_in = devc->xfer_buf_in +
	151	LIBUSB_CONTROL_SETUP_SIZE;
	152	devc->xfer_data_out = devc->xfer_buf_out +
	153	LIBUSB_CONTROL_SETUP_SIZE;
	154
	155	drvc->instances = g_slist_append(drvc->instances, sdi);
	156	devices = g_slist_append(devices, sdi);
e52e712d	157	}
16e76bae	158
e52e712d	159	g_slist_free(usb_devices);
16e76bae MS	160
	161	return devices;
	162	}
	163
4f840ce9	164	static GSList dev_list(const struct sr_dev_driver di)
16e76bae	165	{
41812aca	166	return ((struct drv_context *)(di->context))->instances;
16e76bae MS	167	}
16e76bae MS	168
e52e712d MS	169	static void clear_dev_context(void *priv)
e52e712d MS	170	{
c824eb63 UH	171	struct dev_context *devc;
	172
	173	devc = priv;
e52e712d	174
c824eb63	175	sr_dbg("Device context cleared.");
e52e712d MS	176
	177	libusb_free_transfer(devc->xfer_in);
	178	libusb_free_transfer(devc->xfer_out);
	179	g_free(devc);
	180	}
	181
4f840ce9	182	static int dev_clear(const struct sr_dev_driver *di)
16e76bae	183	{
e52e712d	184	return std_dev_clear(di, &clear_dev_context);
16e76bae MS	185	}
	186
	187	static int dev_open(struct sr_dev_inst *sdi)
	188	{
4f840ce9	189	struct sr_dev_driver *di = sdi->driver;
e52e712d MS	190	struct drv_context *drvc;
	191	struct dev_context *devc;
	192	struct sr_usb_dev_inst *usb;
	193	uint8_t buffer[PACKET_LENGTH];
	194	int ret;
	195
41812aca	196	if (!(drvc = di->context)) {
e52e712d MS	197	sr_err("Driver was not initialized.");
	198	return SR_ERR;
	199	}
	200
	201	usb = sdi->conn;
	202	devc = sdi->priv;
16e76bae	203
e52e712d MS	204	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
	205	return SR_ERR;
	206
	207	/*
	208	* Determine if a kernel driver is active on this interface and, if so,
	209	* detach it.
	210	*/
	211	if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
	212	ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE);
e52e712d	213	if (ret < 0) {
9526f2d4	214	sr_err("Failed to detach kernel driver: %s.",
e52e712d MS	215	libusb_error_name(ret));
	216	return SR_ERR;
	217	}
	218	}
	219
79914b3a	220	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) {
e52e712d MS	221	sr_err("Failed to claim interface: %s.",
	222	libusb_error_name(ret));
	223	return SR_ERR;
	224	}
	225
	226	libusb_fill_control_transfer(devc->xfer_in, usb->devhdl,
79914b3a	227	devc->xfer_buf_in, sl2_receive_transfer_in,
1a46cc62	228	sdi, USB_TIMEOUT_MS);
e52e712d MS	229
e52e712d MS	230	libusb_fill_control_transfer(devc->xfer_out, usb->devhdl,
79914b3a	231	devc->xfer_buf_out, sl2_receive_transfer_out,
1a46cc62	232	sdi, USB_TIMEOUT_MS);
e52e712d MS	233
	234	memset(buffer, 0, sizeof(buffer));
	235
	236	buffer[0] = CMD_RESET;
79914b3a	237	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	238	sr_err("Device reset failed: %s.", libusb_error_name(ret));
	239	return SR_ERR;
	240	}
	241
	242	/*
	243	* Set the device to idle state. If the device is not in idle state it
c824eb63 UH	244	* possibly will reset itself after a few seconds without being used
c824eb63 UH	245	* and thereby close the connection.
e52e712d MS	246	*/
e52e712d MS	247	buffer[0] = CMD_IDLE;
79914b3a	248	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	249	sr_err("Failed to set device in idle state: %s.",
	250	libusb_error_name(ret));
	251	return SR_ERR;
	252	}
16e76bae MS	253
	254	sdi->status = SR_ST_ACTIVE;
	255
	256	return SR_OK;
	257	}
	258
	259	static int dev_close(struct sr_dev_inst *sdi)
	260	{
4f840ce9	261	struct sr_dev_driver *di = sdi->driver;
e52e712d MS	262	struct sr_usb_dev_inst *usb;
e52e712d MS	263
41812aca	264	if (!di->context) {
e52e712d MS	265	sr_err("Driver was not initialized.");
	266	return SR_ERR;
	267	}
	268
	269	usb = sdi->conn;
	270
	271	if (!usb->devhdl)
	272	return SR_OK;
16e76bae	273
e52e712d MS	274	libusb_release_interface(usb->devhdl, USB_INTERFACE);
e52e712d MS	275	libusb_close(usb->devhdl);
16e76bae	276
e52e712d	277	usb->devhdl = NULL;
16e76bae MS	278	sdi->status = SR_ST_INACTIVE;
	279
	280	return SR_OK;
	281	}
	282
4f840ce9	283	static int cleanup(const struct sr_dev_driver *di)
16e76bae	284	{
4f840ce9	285	return dev_clear(di);
16e76bae MS	286	}
16e76bae MS	287
584560f1	288	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	289	const struct sr_channel_group *cg)
16e76bae	290	{
e52e712d	291	struct dev_context *devc;
16e76bae MS	292	int ret;
16e76bae MS	293
53b4680f	294	(void)cg;
d3c74a6f	295
16e76bae	296	ret = SR_OK;
e52e712d MS	297	devc = sdi->priv;
e52e712d MS	298
16e76bae	299	switch (key) {
e52e712d MS	300	case SR_CONF_SAMPLERATE:
	301	*data = g_variant_new_uint64(devc->samplerate);
	302	break;
	303	case SR_CONF_CAPTURE_RATIO:
	304	*data = g_variant_new_uint64(devc->capture_ratio);
	305	break;
16e76bae MS	306	default:
	307	return SR_ERR_NA;
	308	}
	309
	310	return ret;
	311	}
	312
584560f1	313	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	314	const struct sr_channel_group *cg)
16e76bae	315	{
e52e712d	316	uint64_t samplerate, limit_samples, capture_ratio;
16e76bae MS	317	int ret;
16e76bae MS	318
53b4680f	319	(void)cg;
d3c74a6f	320
16e76bae MS	321	if (sdi->status != SR_ST_ACTIVE)
	322	return SR_ERR_DEV_CLOSED;
	323
	324	ret = SR_OK;
e52e712d	325
16e76bae	326	switch (key) {
e52e712d MS	327	case SR_CONF_LIMIT_SAMPLES:
e52e712d MS	328	limit_samples = g_variant_get_uint64(data);
79914b3a	329	ret = sl2_set_limit_samples(sdi, limit_samples);
e52e712d MS	330	break;
	331	case SR_CONF_SAMPLERATE:
	332	samplerate = g_variant_get_uint64(data);
79914b3a	333	ret = sl2_set_samplerate(sdi, samplerate);
e52e712d MS	334	break;
	335	case SR_CONF_CAPTURE_RATIO:
	336	capture_ratio = g_variant_get_uint64(data);
79914b3a	337	ret = sl2_set_capture_ratio(sdi, capture_ratio);
e52e712d	338	break;
16e76bae	339	default:
e52e712d	340	return SR_ERR_NA;
16e76bae MS	341	}
	342
	343	return ret;
	344	}
	345
584560f1	346	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	347	const struct sr_channel_group *cg)
16e76bae	348	{
f0de2dd0	349	GVariant gvar, grange[2];
e52e712d	350	GVariantBuilder gvb;
16e76bae MS	351	int ret;
	352
	353	(void)sdi;
53b4680f	354	(void)cg;
16e76bae MS	355
	356	ret = SR_OK;
	357	switch (key) {
e52e712d	358	case SR_CONF_DEVICE_OPTIONS:
584560f1	359	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b	360	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
e52e712d MS	361	break;
	362	case SR_CONF_SAMPLERATE:
	363	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	364	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
79914b3a	365	sl2_samplerates, ARRAY_SIZE(sl2_samplerates),
e52e712d MS	366	sizeof(uint64_t));
	367	g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
	368	*data = g_variant_builder_end(&gvb);
	369	break;
02d5c0d8 BV	370	case SR_CONF_TRIGGER_MATCH:
	371	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	372	trigger_matches, ARRAY_SIZE(trigger_matches),
	373	sizeof(int32_t));
e52e712d	374	break;
f0de2dd0 BV	375	case SR_CONF_LIMIT_SAMPLES:
	376	grange[0] = g_variant_new_uint64(0);
	377	grange[1] = g_variant_new_uint64(MAX_SAMPLES);
	378	*data = g_variant_new_tuple(grange, 2);
	379	break;
16e76bae MS	380	default:
	381	return SR_ERR_NA;
	382	}
	383
	384	return ret;
	385	}
	386
e52e712d	387	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
16e76bae	388	{
4f840ce9	389	struct sr_dev_driver *di = sdi->driver;
e52e712d MS	390	struct drv_context *drvc;
	391	struct dev_context *devc;
	392	uint16_t trigger_bytes, tmp;
	393	unsigned int i, j;
	394	int ret;
16e76bae MS	395
	396	if (sdi->status != SR_ST_ACTIVE)
	397	return SR_ERR_DEV_CLOSED;
	398
e52e712d	399	devc = sdi->priv;
41812aca	400	drvc = di->context;
e52e712d MS	401
	402	devc->cb_data = cb_data;
	403	devc->wait_data_ready_locked = TRUE;
	404	devc->stopping_in_progress = FALSE;
	405	devc->transfer_error = FALSE;
	406	devc->samples_processed = 0;
	407	devc->channel = 0;
	408	devc->sample_packet = 0;
	409
	410	/*
	411	* The trigger must be configured first because the calculation of the
	412	* pre and post trigger samples depends on a configured trigger.
	413	*/
02d5c0d8	414	sl2_convert_trigger(sdi);
79914b3a	415	sl2_calculate_trigger_samples(sdi);
e52e712d MS	416
	417	trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes;
	418
	419	/* Calculate the number of expected sample packets. */
	420	devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES;
	421
	422	/* Round up the number of expected sample packets. */
	423	if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0)
	424	devc->num_sample_packets++;
	425
ba7dd8bb	426	devc->num_enabled_channels = 0;
e52e712d MS	427
e52e712d MS	428	/*
ba7dd8bb	429	* Count the number of enabled channels and number them for a sequential
e52e712d MS	430	* access.
e52e712d MS	431	*/
3f239f08	432	for (i = 0, j = 0; i < NUM_CHANNELS; i++) {
ba7dd8bb UH	433	if (devc->channels[i]->enabled) {
	434	devc->num_enabled_channels++;
	435	devc->channel_map[j] = i;
e52e712d MS	436	j++;
	437	}
	438	}
	439
ba7dd8bb	440	sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels);
e52e712d MS	441
	442	/* Set up the transfer buffer for the acquisition. */
	443	devc->xfer_data_out[0] = CMD_SAMPLE;
	444	devc->xfer_data_out[1] = 0x00;
	445
	446	tmp = GUINT16_TO_LE(devc->pre_trigger_bytes);
	447	memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp));
	448
	449	tmp = GUINT16_TO_LE(devc->post_trigger_bytes);
	450	memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp));
	451
	452	devc->xfer_data_out[6] = devc->samplerate_id;
	453	devc->xfer_data_out[7] = devc->trigger_type;
	454	devc->xfer_data_out[8] = devc->trigger_channel;
	455	devc->xfer_data_out[9] = 0x00;
	456
	457	tmp = GUINT16_TO_LE(devc->after_trigger_delay);
	458	memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp));
	459
e52e712d	460	if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) {
c824eb63	461	sr_err("Submit transfer failed: %s.", libusb_error_name(ret));
e52e712d MS	462	return SR_ERR;
	463	}
	464
102f1239 BV	465	usb_source_add(sdi->session, drvc->sr_ctx, 100,
102f1239 BV	466	ikalogic_scanalogic2_receive_data, (void *)sdi);
e52e712d MS	467
	468	sr_dbg("Acquisition started successfully.");
	469
	470	/* Send header packet to the session bus. */
	471	std_session_send_df_header(cb_data, LOG_PREFIX);
	472
	473	devc->next_state = STATE_SAMPLE;
16e76bae MS	474
	475	return SR_OK;
	476	}
	477
	478	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	479	{
	480	(void)cb_data;
	481
	482	if (sdi->status != SR_ST_ACTIVE)
	483	return SR_ERR_DEV_CLOSED;
	484
e52e712d MS	485	sr_dbg("Stopping acquisition.");
	486
	487	sdi->status = SR_ST_STOPPING;
16e76bae MS	488
	489	return SR_OK;
	490	}
	491
	492	SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
	493	.name = "ikalogic-scanalogic2",
e52e712d	494	.longname = "IKALOGIC Scanalogic-2",
16e76bae MS	495	.api_version = 1,
	496	.init = init,
	497	.cleanup = cleanup,
	498	.scan = scan,
	499	.dev_list = dev_list,
	500	.dev_clear = dev_clear,
	501	.config_get = config_get,
	502	.config_set = config_set,
	503	.config_list = config_list,
	504	.dev_open = dev_open,
	505	.dev_close = dev_close,
	506	.dev_acquisition_start = dev_acquisition_start,
	507	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	508	.context = NULL,
16e76bae	509	};