[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 <config.h>
#include "protocol.h"

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

static const uint32_t devopts[] = {
	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",
};

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;

	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(di, *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("IKALOGIC");
		sdi->model = g_strdup("Scanalogic-2");
		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->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;

		devices = g_slist_append(devices, sdi);
	}

	g_slist_free(usb_devices);

	return std_scan_complete(di, devices);
}

static void clear_helper(struct dev_context *devc)
{
	libusb_free_transfer(devc->xfer_in);
	libusb_free_transfer(devc->xfer_out);
}

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

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

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

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

	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;
	}

	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;

	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;
	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;

	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 *grange[2];

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
	case SR_CONF_SAMPLERATE:
		*data = std_gvar_samplerates(ARRAY_AND_SIZE(sl2_samplerates));
		break;
	case SR_CONF_TRIGGER_MATCH:
		*data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
		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 SR_OK;
}

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

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

	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);

	std_session_send_df_header(sdi);

	devc->next_state = STATE_SAMPLE;

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	sdi->status = SR_ST_STOPPING;

	return SR_OK;
}

static struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
	.name = "ikalogic-scanalogic2",
	.longname = "IKALOGIC Scanalogic-2",
	.api_version = 1,
	.init = std_init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = std_dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
SR_REGISTER_DEV_DRIVER(ikalogic_scanalogic2_driver_info);
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
6ec6c43b	20	#include <config.h>
16e76bae MS	21	#include "protocol.h"
16e76bae MS	22
05199c0a	23	static const uint32_t drvopts[] = {
e52e712d	24	SR_CONF_LOGIC_ANALYZER,
05199c0a UH	25	};
	26
	27	static const uint32_t devopts[] = {
5827f61b BV	28	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_LIST,
	29	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	30	SR_CONF_TRIGGER_MATCH \| SR_CONF_LIST,
	31	SR_CONF_CAPTURE_RATIO \| SR_CONF_GET \| SR_CONF_SET,
e52e712d MS	32	};
e52e712d MS	33
02d5c0d8 BV	34	static const int32_t trigger_matches[] = {
	35	SR_TRIGGER_RISING,
	36	SR_TRIGGER_FALLING,
	37	SR_TRIGGER_EDGE,
	38	};
	39
79914b3a	40	SR_PRIV const uint64_t sl2_samplerates[NUM_SAMPLERATES] = {
e52e712d MS	41	SR_KHZ(1.25),
	42	SR_KHZ(10),
	43	SR_KHZ(50),
	44	SR_KHZ(100),
	45	SR_KHZ(250),
	46	SR_KHZ(500),
	47	SR_MHZ(1),
	48	SR_MHZ(2.5),
	49	SR_MHZ(5),
	50	SR_MHZ(10),
c824eb63	51	SR_MHZ(20),
e52e712d MS	52	};
e52e712d MS	53
53cda65a	54	static const char *channel_names[] = {
e52e712d	55	"0", "1", "2", "3",
e52e712d MS	56	};
e52e712d MS	57
4f840ce9	58	static GSList scan(struct sr_dev_driver di, GSList *options)
16e76bae	59	{
e52e712d	60	GSList usb_devices, devices, *l;
16e76bae	61	struct drv_context *drvc;
e52e712d	62	struct sr_dev_inst *sdi;
e52e712d MS	63	struct dev_context *devc;
	64	struct sr_usb_dev_inst *usb;
	65	struct device_info dev_info;
dcd438ee UH	66	unsigned int i;
dcd438ee UH	67	int ret;
16e76bae MS	68
	69	(void)options;
	70
	71	devices = NULL;
41812aca	72	drvc = di->context;
e52e712d MS	73
	74	usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID);
	75
98fec29e	76	if (!usb_devices)
e52e712d MS	77	return NULL;
e52e712d MS	78
c824eb63	79	for (l = usb_devices; l; l = l->next) {
e52e712d MS	80	usb = l->data;
e52e712d MS	81
e32862eb	82	if ((ret = sl2_get_device_info(di, *usb, &dev_info)) < 0) {
79914b3a	83	sr_warn("Failed to get device information: %d.", ret);
e52e712d MS	84	sr_usb_dev_inst_free(usb);
	85	continue;
	86	}
	87
f57d8ffe	88	devc = g_malloc0(sizeof(struct dev_context));
e52e712d MS	89
	90	if (!(devc->xfer_in = libusb_alloc_transfer(0))) {
	91	sr_err("Transfer malloc failed.");
	92	sr_usb_dev_inst_free(usb);
	93	g_free(devc);
	94	continue;
	95	}
	96
	97	if (!(devc->xfer_out = libusb_alloc_transfer(0))) {
	98	sr_err("Transfer malloc failed.");
	99	sr_usb_dev_inst_free(usb);
	100	libusb_free_transfer(devc->xfer_in);
	101	g_free(devc);
	102	continue;
	103	}
	104
aac29cc1	105	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be	106	sdi->status = SR_ST_INACTIVE;
b15ff1c9 UH	107	sdi->vendor = g_strdup("IKALOGIC");
b15ff1c9 UH	108	sdi->model = g_strdup("Scanalogic-2");
0af636be UH	109	sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor);
0af636be UH	110	sdi->serial_num = g_strdup_printf("%d", dev_info.serial);
e52e712d	111	sdi->priv = devc;
e52e712d MS	112	sdi->inst_type = SR_INST_USB;
	113	sdi->conn = usb;
	114
0f34cb47 UH	115	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
	116	devc->channels[i] = sr_channel_new(sdi, i,
	117	SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
e52e712d MS	118
	119	devc->state = STATE_IDLE;
	120	devc->next_state = STATE_IDLE;
	121
	122	/* Set default samplerate. */
79914b3a	123	sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE);
e52e712d MS	124
	125	/* Set default capture ratio. */
	126	devc->capture_ratio = 0;
	127
	128	/* Set default after trigger delay. */
	129	devc->after_trigger_delay = 0;
	130
	131	memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE +
	132	PACKET_LENGTH);
	133	memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE +
	134	PACKET_LENGTH);
	135
	136	libusb_fill_control_setup(devc->xfer_buf_in,
fb8d593c	137	USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT,
e52e712d MS	138	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	139	PACKET_LENGTH);
	140	libusb_fill_control_setup(devc->xfer_buf_out,
	141	USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT,
	142	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	143	PACKET_LENGTH);
	144
	145	devc->xfer_data_in = devc->xfer_buf_in +
	146	LIBUSB_CONTROL_SETUP_SIZE;
	147	devc->xfer_data_out = devc->xfer_buf_out +
	148	LIBUSB_CONTROL_SETUP_SIZE;
	149
e52e712d	150	devices = g_slist_append(devices, sdi);
e52e712d	151	}
16e76bae	152
e52e712d	153	g_slist_free(usb_devices);
16e76bae	154
15a5bfe4	155	return std_scan_complete(di, devices);
16e76bae MS	156	}
16e76bae MS	157
3553451f	158	static void clear_helper(struct dev_context *devc)
e52e712d	159	{
e52e712d MS	160	libusb_free_transfer(devc->xfer_in);
e52e712d MS	161	libusb_free_transfer(devc->xfer_out);
e52e712d MS	162	}
e52e712d MS	163
4f840ce9	164	static int dev_clear(const struct sr_dev_driver *di)
16e76bae	165	{
3553451f	166	return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
16e76bae MS	167	}
	168
	169	static int dev_open(struct sr_dev_inst *sdi)
	170	{
4f840ce9	171	struct sr_dev_driver *di = sdi->driver;
efa98402	172	struct drv_context *drvc = di->context;
e52e712d MS	173	struct dev_context *devc;
	174	struct sr_usb_dev_inst *usb;
	175	uint8_t buffer[PACKET_LENGTH];
	176	int ret;
	177
e52e712d MS	178	usb = sdi->conn;
e52e712d MS	179	devc = sdi->priv;
16e76bae	180
e52e712d MS	181	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
	182	return SR_ERR;
	183
e52e712d MS	184	if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
e52e712d MS	185	ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE);
e52e712d	186	if (ret < 0) {
9526f2d4	187	sr_err("Failed to detach kernel driver: %s.",
e52e712d MS	188	libusb_error_name(ret));
	189	return SR_ERR;
	190	}
	191	}
	192
79914b3a	193	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) {
e52e712d MS	194	sr_err("Failed to claim interface: %s.",
	195	libusb_error_name(ret));
	196	return SR_ERR;
	197	}
	198
	199	libusb_fill_control_transfer(devc->xfer_in, usb->devhdl,
79914b3a	200	devc->xfer_buf_in, sl2_receive_transfer_in,
1a46cc62	201	sdi, USB_TIMEOUT_MS);
e52e712d MS	202
e52e712d MS	203	libusb_fill_control_transfer(devc->xfer_out, usb->devhdl,
79914b3a	204	devc->xfer_buf_out, sl2_receive_transfer_out,
1a46cc62	205	sdi, USB_TIMEOUT_MS);
e52e712d MS	206
	207	memset(buffer, 0, sizeof(buffer));
	208
	209	buffer[0] = CMD_RESET;
79914b3a	210	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	211	sr_err("Device reset failed: %s.", libusb_error_name(ret));
	212	return SR_ERR;
	213	}
	214
	215	/*
	216	* Set the device to idle state. If the device is not in idle state it
c824eb63 UH	217	* possibly will reset itself after a few seconds without being used
c824eb63 UH	218	* and thereby close the connection.
e52e712d MS	219	*/
e52e712d MS	220	buffer[0] = CMD_IDLE;
79914b3a	221	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	222	sr_err("Failed to set device in idle state: %s.",
	223	libusb_error_name(ret));
	224	return SR_ERR;
	225	}
16e76bae	226
16e76bae MS	227	return SR_OK;
	228	}
	229
	230	static int dev_close(struct sr_dev_inst *sdi)
	231	{
e52e712d MS	232	struct sr_usb_dev_inst *usb;
e52e712d MS	233
e52e712d MS	234	usb = sdi->conn;
	235
	236	if (!usb->devhdl)
f1ba6b4b	237	return SR_ERR_BUG;
16e76bae	238
e52e712d MS	239	libusb_release_interface(usb->devhdl, USB_INTERFACE);
e52e712d MS	240	libusb_close(usb->devhdl);
16e76bae	241
e52e712d	242	usb->devhdl = NULL;
16e76bae MS	243
	244	return SR_OK;
	245	}
	246
584560f1	247	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	248	const struct sr_channel_group *cg)
16e76bae	249	{
e52e712d	250	struct dev_context *devc;
16e76bae MS	251	int ret;
16e76bae MS	252
53b4680f	253	(void)cg;
d3c74a6f	254
16e76bae	255	ret = SR_OK;
e52e712d MS	256	devc = sdi->priv;
e52e712d MS	257
16e76bae	258	switch (key) {
e52e712d MS	259	case SR_CONF_SAMPLERATE:
	260	*data = g_variant_new_uint64(devc->samplerate);
	261	break;
	262	case SR_CONF_CAPTURE_RATIO:
	263	*data = g_variant_new_uint64(devc->capture_ratio);
	264	break;
16e76bae MS	265	default:
	266	return SR_ERR_NA;
	267	}
	268
	269	return ret;
	270	}
	271
584560f1	272	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	273	const struct sr_channel_group *cg)
16e76bae	274	{
e52e712d	275	uint64_t samplerate, limit_samples, capture_ratio;
16e76bae MS	276	int ret;
16e76bae MS	277
53b4680f	278	(void)cg;
d3c74a6f	279
16e76bae	280	switch (key) {
e52e712d MS	281	case SR_CONF_LIMIT_SAMPLES:
e52e712d MS	282	limit_samples = g_variant_get_uint64(data);
79914b3a	283	ret = sl2_set_limit_samples(sdi, limit_samples);
e52e712d MS	284	break;
	285	case SR_CONF_SAMPLERATE:
	286	samplerate = g_variant_get_uint64(data);
79914b3a	287	ret = sl2_set_samplerate(sdi, samplerate);
e52e712d MS	288	break;
	289	case SR_CONF_CAPTURE_RATIO:
	290	capture_ratio = g_variant_get_uint64(data);
79914b3a	291	ret = sl2_set_capture_ratio(sdi, capture_ratio);
e52e712d	292	break;
16e76bae	293	default:
e52e712d	294	return SR_ERR_NA;
16e76bae MS	295	}
	296
	297	return ret;
	298	}
	299
584560f1	300	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	301	const struct sr_channel_group *cg)
16e76bae	302	{
463160cb	303	GVariant *grange[2];
16e76bae	304
16e76bae	305	switch (key) {
e52e712d	306	case SR_CONF_DEVICE_OPTIONS:
05199c0a	307	return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
e52e712d	308	case SR_CONF_SAMPLERATE:
53012da6	309	*data = std_gvar_samplerates(ARRAY_AND_SIZE(sl2_samplerates));
e52e712d	310	break;
02d5c0d8	311	case SR_CONF_TRIGGER_MATCH:
53012da6	312	*data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
e52e712d	313	break;
f0de2dd0 BV	314	case SR_CONF_LIMIT_SAMPLES:
	315	grange[0] = g_variant_new_uint64(0);
	316	grange[1] = g_variant_new_uint64(MAX_SAMPLES);
	317	*data = g_variant_new_tuple(grange, 2);
	318	break;
16e76bae MS	319	default:
	320	return SR_ERR_NA;
	321	}
	322
a9010323	323	return SR_OK;
16e76bae MS	324	}
16e76bae MS	325
695dc859	326	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
16e76bae	327	{
4f840ce9	328	struct sr_dev_driver *di = sdi->driver;
e52e712d MS	329	struct drv_context *drvc;
	330	struct dev_context *devc;
	331	uint16_t trigger_bytes, tmp;
	332	unsigned int i, j;
	333	int ret;
16e76bae	334
e52e712d	335	devc = sdi->priv;
41812aca	336	drvc = di->context;
e52e712d	337
e52e712d MS	338	devc->wait_data_ready_locked = TRUE;
	339	devc->stopping_in_progress = FALSE;
	340	devc->transfer_error = FALSE;
	341	devc->samples_processed = 0;
	342	devc->channel = 0;
	343	devc->sample_packet = 0;
	344
	345	/*
	346	* The trigger must be configured first because the calculation of the
	347	* pre and post trigger samples depends on a configured trigger.
	348	*/
02d5c0d8	349	sl2_convert_trigger(sdi);
79914b3a	350	sl2_calculate_trigger_samples(sdi);
e52e712d MS	351
	352	trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes;
	353
	354	/* Calculate the number of expected sample packets. */
	355	devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES;
	356
	357	/* Round up the number of expected sample packets. */
	358	if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0)
	359	devc->num_sample_packets++;
	360
ba7dd8bb	361	devc->num_enabled_channels = 0;
e52e712d MS	362
e52e712d MS	363	/*
ba7dd8bb	364	* Count the number of enabled channels and number them for a sequential
e52e712d MS	365	* access.
e52e712d MS	366	*/
3f239f08	367	for (i = 0, j = 0; i < NUM_CHANNELS; i++) {
ba7dd8bb UH	368	if (devc->channels[i]->enabled) {
	369	devc->num_enabled_channels++;
	370	devc->channel_map[j] = i;
e52e712d MS	371	j++;
	372	}
	373	}
	374
ba7dd8bb	375	sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels);
e52e712d MS	376
	377	/* Set up the transfer buffer for the acquisition. */
	378	devc->xfer_data_out[0] = CMD_SAMPLE;
	379	devc->xfer_data_out[1] = 0x00;
	380
	381	tmp = GUINT16_TO_LE(devc->pre_trigger_bytes);
	382	memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp));
	383
	384	tmp = GUINT16_TO_LE(devc->post_trigger_bytes);
	385	memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp));
	386
	387	devc->xfer_data_out[6] = devc->samplerate_id;
	388	devc->xfer_data_out[7] = devc->trigger_type;
	389	devc->xfer_data_out[8] = devc->trigger_channel;
	390	devc->xfer_data_out[9] = 0x00;
	391
	392	tmp = GUINT16_TO_LE(devc->after_trigger_delay);
	393	memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp));
	394
e52e712d	395	if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) {
c824eb63	396	sr_err("Submit transfer failed: %s.", libusb_error_name(ret));
e52e712d MS	397	return SR_ERR;
	398	}
	399
102f1239 BV	400	usb_source_add(sdi->session, drvc->sr_ctx, 100,
102f1239 BV	401	ikalogic_scanalogic2_receive_data, (void *)sdi);
e52e712d	402
bee2b016	403	std_session_send_df_header(sdi);
e52e712d MS	404
e52e712d MS	405	devc->next_state = STATE_SAMPLE;
16e76bae MS	406
	407	return SR_OK;
	408	}
	409
695dc859	410	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
16e76bae	411	{
e52e712d	412	sdi->status = SR_ST_STOPPING;
16e76bae MS	413
	414	return SR_OK;
	415	}
	416
dd5c48a6	417	static struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
16e76bae	418	.name = "ikalogic-scanalogic2",
e52e712d	419	.longname = "IKALOGIC Scanalogic-2",
16e76bae	420	.api_version = 1,
c2fdcc25	421	.init = std_init,
700d6b64	422	.cleanup = std_cleanup,
16e76bae	423	.scan = scan,
c01bf34c	424	.dev_list = std_dev_list,
16e76bae MS	425	.dev_clear = dev_clear,
	426	.config_get = config_get,
	427	.config_set = config_set,
	428	.config_list = config_list,
	429	.dev_open = dev_open,
	430	.dev_close = dev_close,
	431	.dev_acquisition_start = dev_acquisition_start,
	432	.dev_acquisition_stop = dev_acquisition_stop,
41812aca	433	.context = NULL,
16e76bae	434	};
dd5c48a6	435	SR_REGISTER_DEV_DRIVER(ikalogic_scanalogic2_driver_info);