[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[NUM_CHANNELS + 1] = {
	"0", "1", "2", "3",
	NULL,
};

SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
static struct sr_dev_driver *di = &ikalogic_scanalogic2_driver_info;

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

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

	(void)options;

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

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

	if (usb_devices == NULL)
		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; channel_names[i]; i++) {
			ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
				channel_names[i]);
			sdi->channels = g_slist_append(sdi->channels, ch);
			devc->channels[i] = ch;
		}

		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(void)
{
	return ((struct drv_context *)(di->priv))->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(void)
{
	return std_dev_clear(di, &clear_dev_context);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	uint8_t buffer[PACKET_LENGTH];
	int ret;

	if (!(drvc = di->priv)) {
		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);

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

	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_usb_dev_inst *usb;

	if (!di->priv) {
		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(void)
{
	return dev_clear();
}

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 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->priv;

	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,
	.priv = 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
3f239f08	50	static const char *channel_names[NUM_CHANNELS + 1] = {
e52e712d	51	"0", "1", "2", "3",
c824eb63	52	NULL,
e52e712d MS	53	};
e52e712d MS	54
16e76bae MS	55	SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
	56	static struct sr_dev_driver *di = &ikalogic_scanalogic2_driver_info;
	57
16e76bae MS	58	static int init(struct sr_context *sr_ctx)
16e76bae MS	59	{
e52e712d	60	return std_init(sr_ctx, di, LOG_PREFIX);
16e76bae MS	61	}
	62
	63	static GSList scan(GSList options)
	64	{
e52e712d	65	GSList usb_devices, devices, *l;
16e76bae	66	struct drv_context *drvc;
e52e712d	67	struct sr_dev_inst *sdi;
ba7dd8bb	68	struct sr_channel *ch;
e52e712d MS	69	struct dev_context *devc;
	70	struct sr_usb_dev_inst *usb;
	71	struct device_info dev_info;
65340dd5	72	int ret, i;
16e76bae MS	73
	74	(void)options;
	75
	76	devices = NULL;
	77	drvc = di->priv;
	78	drvc->instances = NULL;
e52e712d MS	79
	80	usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_VID_PID);
	81
	82	if (usb_devices == NULL)
	83	return NULL;
	84
c824eb63	85	for (l = usb_devices; l; l = l->next) {
e52e712d MS	86	usb = l->data;
e52e712d MS	87
79914b3a UH	88	if ((ret = sl2_get_device_info(*usb, &dev_info)) < 0) {
79914b3a UH	89	sr_warn("Failed to get device information: %d.", ret);
e52e712d MS	90	sr_usb_dev_inst_free(usb);
	91	continue;
	92	}
	93
f57d8ffe	94	devc = g_malloc0(sizeof(struct dev_context));
e52e712d MS	95
	96	if (!(devc->xfer_in = libusb_alloc_transfer(0))) {
	97	sr_err("Transfer malloc failed.");
	98	sr_usb_dev_inst_free(usb);
	99	g_free(devc);
	100	continue;
	101	}
	102
	103	if (!(devc->xfer_out = libusb_alloc_transfer(0))) {
	104	sr_err("Transfer malloc failed.");
	105	sr_usb_dev_inst_free(usb);
	106	libusb_free_transfer(devc->xfer_in);
	107	g_free(devc);
	108	continue;
	109	}
	110
aac29cc1	111	sdi = g_malloc0(sizeof(struct sr_dev_inst));
0af636be UH	112	sdi->status = SR_ST_INACTIVE;
	113	sdi->vendor = g_strdup(VENDOR_NAME);
	114	sdi->model = g_strdup(MODEL_NAME);
	115	sdi->version = g_strdup_printf("%u.%u", dev_info.fw_ver_major, dev_info.fw_ver_minor);
	116	sdi->serial_num = g_strdup_printf("%d", dev_info.serial);
e52e712d MS	117	sdi->priv = devc;
	118	sdi->driver = di;
	119	sdi->inst_type = SR_INST_USB;
	120	sdi->conn = usb;
	121
ba7dd8bb	122	for (i = 0; channel_names[i]; i++) {
3f239f08	123	ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
ba7dd8bb UH	124	channel_names[i]);
	125	sdi->channels = g_slist_append(sdi->channels, ch);
	126	devc->channels[i] = ch;
e52e712d MS	127	}
	128
	129	devc->state = STATE_IDLE;
	130	devc->next_state = STATE_IDLE;
	131
	132	/* Set default samplerate. */
79914b3a	133	sl2_set_samplerate(sdi, DEFAULT_SAMPLERATE);
e52e712d MS	134
	135	/* Set default capture ratio. */
	136	devc->capture_ratio = 0;
	137
	138	/* Set default after trigger delay. */
	139	devc->after_trigger_delay = 0;
	140
	141	memset(devc->xfer_buf_in, 0, LIBUSB_CONTROL_SETUP_SIZE +
	142	PACKET_LENGTH);
	143	memset(devc->xfer_buf_out, 0, LIBUSB_CONTROL_SETUP_SIZE +
	144	PACKET_LENGTH);
	145
	146	libusb_fill_control_setup(devc->xfer_buf_in,
fb8d593c	147	USB_REQUEST_TYPE_IN, USB_HID_GET_REPORT,
e52e712d MS	148	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	149	PACKET_LENGTH);
	150	libusb_fill_control_setup(devc->xfer_buf_out,
	151	USB_REQUEST_TYPE_OUT, USB_HID_SET_REPORT,
	152	USB_HID_REPORT_TYPE_FEATURE, USB_INTERFACE,
	153	PACKET_LENGTH);
	154
	155	devc->xfer_data_in = devc->xfer_buf_in +
	156	LIBUSB_CONTROL_SETUP_SIZE;
	157	devc->xfer_data_out = devc->xfer_buf_out +
	158	LIBUSB_CONTROL_SETUP_SIZE;
	159
	160	drvc->instances = g_slist_append(drvc->instances, sdi);
	161	devices = g_slist_append(devices, sdi);
e52e712d	162	}
16e76bae	163
e52e712d	164	g_slist_free(usb_devices);
16e76bae MS	165
	166	return devices;
	167	}
	168
	169	static GSList *dev_list(void)
	170	{
c824eb63	171	return ((struct drv_context *)(di->priv))->instances;
16e76bae MS	172	}
16e76bae MS	173
e52e712d MS	174	static void clear_dev_context(void *priv)
e52e712d MS	175	{
c824eb63 UH	176	struct dev_context *devc;
	177
	178	devc = priv;
e52e712d	179
c824eb63	180	sr_dbg("Device context cleared.");
e52e712d MS	181
	182	libusb_free_transfer(devc->xfer_in);
	183	libusb_free_transfer(devc->xfer_out);
	184	g_free(devc);
	185	}
	186
16e76bae MS	187	static int dev_clear(void)
16e76bae MS	188	{
e52e712d	189	return std_dev_clear(di, &clear_dev_context);
16e76bae MS	190	}
	191
	192	static int dev_open(struct sr_dev_inst *sdi)
	193	{
e52e712d MS	194	struct drv_context *drvc;
	195	struct dev_context *devc;
	196	struct sr_usb_dev_inst *usb;
	197	uint8_t buffer[PACKET_LENGTH];
	198	int ret;
	199
	200	if (!(drvc = di->priv)) {
	201	sr_err("Driver was not initialized.");
	202	return SR_ERR;
	203	}
	204
	205	usb = sdi->conn;
	206	devc = sdi->priv;
16e76bae	207
e52e712d MS	208	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
	209	return SR_ERR;
	210
	211	/*
	212	* Determine if a kernel driver is active on this interface and, if so,
	213	* detach it.
	214	*/
	215	if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
	216	ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE);
e52e712d	217	if (ret < 0) {
9526f2d4	218	sr_err("Failed to detach kernel driver: %s.",
e52e712d MS	219	libusb_error_name(ret));
	220	return SR_ERR;
	221	}
	222	}
	223
79914b3a	224	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE)) < 0) {
e52e712d MS	225	sr_err("Failed to claim interface: %s.",
	226	libusb_error_name(ret));
	227	return SR_ERR;
	228	}
	229
	230	libusb_fill_control_transfer(devc->xfer_in, usb->devhdl,
79914b3a	231	devc->xfer_buf_in, sl2_receive_transfer_in,
e52e712d MS	232	sdi, USB_TIMEOUT);
	233
	234	libusb_fill_control_transfer(devc->xfer_out, usb->devhdl,
79914b3a	235	devc->xfer_buf_out, sl2_receive_transfer_out,
e52e712d MS	236	sdi, USB_TIMEOUT);
	237
	238	memset(buffer, 0, sizeof(buffer));
	239
	240	buffer[0] = CMD_RESET;
79914b3a	241	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	242	sr_err("Device reset failed: %s.", libusb_error_name(ret));
	243	return SR_ERR;
	244	}
	245
	246	/*
	247	* Set the device to idle state. If the device is not in idle state it
c824eb63 UH	248	* possibly will reset itself after a few seconds without being used
c824eb63 UH	249	* and thereby close the connection.
e52e712d MS	250	*/
e52e712d MS	251	buffer[0] = CMD_IDLE;
79914b3a	252	if ((ret = sl2_transfer_out(usb->devhdl, buffer)) != PACKET_LENGTH) {
e52e712d MS	253	sr_err("Failed to set device in idle state: %s.",
	254	libusb_error_name(ret));
	255	return SR_ERR;
	256	}
16e76bae MS	257
	258	sdi->status = SR_ST_ACTIVE;
	259
	260	return SR_OK;
	261	}
	262
	263	static int dev_close(struct sr_dev_inst *sdi)
	264	{
e52e712d MS	265	struct sr_usb_dev_inst *usb;
	266
	267	if (!di->priv) {
	268	sr_err("Driver was not initialized.");
	269	return SR_ERR;
	270	}
	271
	272	usb = sdi->conn;
	273
	274	if (!usb->devhdl)
	275	return SR_OK;
16e76bae	276
e52e712d MS	277	libusb_release_interface(usb->devhdl, USB_INTERFACE);
e52e712d MS	278	libusb_close(usb->devhdl);
16e76bae	279
e52e712d	280	usb->devhdl = NULL;
16e76bae MS	281	sdi->status = SR_ST_INACTIVE;
	282
	283	return SR_OK;
	284	}
	285
	286	static int cleanup(void)
	287	{
c824eb63	288	return dev_clear();
16e76bae MS	289	}
16e76bae MS	290
584560f1	291	static int config_get(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	292	const struct sr_channel_group *cg)
16e76bae	293	{
e52e712d	294	struct dev_context *devc;
16e76bae MS	295	int ret;
16e76bae MS	296
53b4680f	297	(void)cg;
d3c74a6f	298
16e76bae	299	ret = SR_OK;
e52e712d MS	300	devc = sdi->priv;
e52e712d MS	301
16e76bae	302	switch (key) {
e52e712d MS	303	case SR_CONF_SAMPLERATE:
	304	*data = g_variant_new_uint64(devc->samplerate);
	305	break;
	306	case SR_CONF_CAPTURE_RATIO:
	307	*data = g_variant_new_uint64(devc->capture_ratio);
	308	break;
16e76bae MS	309	default:
	310	return SR_ERR_NA;
	311	}
	312
	313	return ret;
	314	}
	315
584560f1	316	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
53b4680f	317	const struct sr_channel_group *cg)
16e76bae	318	{
e52e712d	319	uint64_t samplerate, limit_samples, capture_ratio;
16e76bae MS	320	int ret;
16e76bae MS	321
53b4680f	322	(void)cg;
d3c74a6f	323
16e76bae MS	324	if (sdi->status != SR_ST_ACTIVE)
	325	return SR_ERR_DEV_CLOSED;
	326
	327	ret = SR_OK;
e52e712d	328
16e76bae	329	switch (key) {
e52e712d MS	330	case SR_CONF_LIMIT_SAMPLES:
e52e712d MS	331	limit_samples = g_variant_get_uint64(data);
79914b3a	332	ret = sl2_set_limit_samples(sdi, limit_samples);
e52e712d MS	333	break;
	334	case SR_CONF_SAMPLERATE:
	335	samplerate = g_variant_get_uint64(data);
79914b3a	336	ret = sl2_set_samplerate(sdi, samplerate);
e52e712d MS	337	break;
	338	case SR_CONF_CAPTURE_RATIO:
	339	capture_ratio = g_variant_get_uint64(data);
79914b3a	340	ret = sl2_set_capture_ratio(sdi, capture_ratio);
e52e712d	341	break;
16e76bae	342	default:
e52e712d	343	return SR_ERR_NA;
16e76bae MS	344	}
	345
	346	return ret;
	347	}
	348
584560f1	349	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
53b4680f	350	const struct sr_channel_group *cg)
16e76bae	351	{
f0de2dd0	352	GVariant gvar, grange[2];
e52e712d	353	GVariantBuilder gvb;
16e76bae MS	354	int ret;
	355
	356	(void)sdi;
53b4680f	357	(void)cg;
16e76bae MS	358
16e76bae MS	359	ret = SR_OK;
e52e712d	360
16e76bae	361	switch (key) {
e52e712d	362	case SR_CONF_DEVICE_OPTIONS:
584560f1	363	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
f254bc4b	364	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
e52e712d MS	365	break;
	366	case SR_CONF_SAMPLERATE:
	367	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	368	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
79914b3a	369	sl2_samplerates, ARRAY_SIZE(sl2_samplerates),
e52e712d MS	370	sizeof(uint64_t));
	371	g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
	372	*data = g_variant_builder_end(&gvb);
	373	break;
02d5c0d8 BV	374	case SR_CONF_TRIGGER_MATCH:
	375	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	376	trigger_matches, ARRAY_SIZE(trigger_matches),
	377	sizeof(int32_t));
e52e712d	378	break;
f0de2dd0 BV	379	case SR_CONF_LIMIT_SAMPLES:
	380	grange[0] = g_variant_new_uint64(0);
	381	grange[1] = g_variant_new_uint64(MAX_SAMPLES);
	382	*data = g_variant_new_tuple(grange, 2);
	383	break;
16e76bae MS	384	default:
	385	return SR_ERR_NA;
	386	}
	387
	388	return ret;
	389	}
	390
e52e712d	391	static int dev_acquisition_start(const struct sr_dev_inst sdi, void cb_data)
16e76bae	392	{
e52e712d MS	393	struct drv_context *drvc;
	394	struct dev_context *devc;
	395	uint16_t trigger_bytes, tmp;
	396	unsigned int i, j;
	397	int ret;
16e76bae MS	398
	399	if (sdi->status != SR_ST_ACTIVE)
	400	return SR_ERR_DEV_CLOSED;
	401
e52e712d MS	402	devc = sdi->priv;
	403	drvc = di->priv;
	404
	405	devc->cb_data = cb_data;
	406	devc->wait_data_ready_locked = TRUE;
	407	devc->stopping_in_progress = FALSE;
	408	devc->transfer_error = FALSE;
	409	devc->samples_processed = 0;
	410	devc->channel = 0;
	411	devc->sample_packet = 0;
	412
	413	/*
	414	* The trigger must be configured first because the calculation of the
	415	* pre and post trigger samples depends on a configured trigger.
	416	*/
02d5c0d8	417	sl2_convert_trigger(sdi);
79914b3a	418	sl2_calculate_trigger_samples(sdi);
e52e712d MS	419
	420	trigger_bytes = devc->pre_trigger_bytes + devc->post_trigger_bytes;
	421
	422	/* Calculate the number of expected sample packets. */
	423	devc->num_sample_packets = trigger_bytes / PACKET_NUM_SAMPLE_BYTES;
	424
	425	/* Round up the number of expected sample packets. */
	426	if (trigger_bytes % PACKET_NUM_SAMPLE_BYTES != 0)
	427	devc->num_sample_packets++;
	428
ba7dd8bb	429	devc->num_enabled_channels = 0;
e52e712d MS	430
e52e712d MS	431	/*
ba7dd8bb	432	* Count the number of enabled channels and number them for a sequential
e52e712d MS	433	* access.
e52e712d MS	434	*/
3f239f08	435	for (i = 0, j = 0; i < NUM_CHANNELS; i++) {
ba7dd8bb UH	436	if (devc->channels[i]->enabled) {
	437	devc->num_enabled_channels++;
	438	devc->channel_map[j] = i;
e52e712d MS	439	j++;
	440	}
	441	}
	442
ba7dd8bb	443	sr_dbg("Number of enabled channels: %i.", devc->num_enabled_channels);
e52e712d MS	444
	445	/* Set up the transfer buffer for the acquisition. */
	446	devc->xfer_data_out[0] = CMD_SAMPLE;
	447	devc->xfer_data_out[1] = 0x00;
	448
	449	tmp = GUINT16_TO_LE(devc->pre_trigger_bytes);
	450	memcpy(devc->xfer_data_out + 2, &tmp, sizeof(tmp));
	451
	452	tmp = GUINT16_TO_LE(devc->post_trigger_bytes);
	453	memcpy(devc->xfer_data_out + 4, &tmp, sizeof(tmp));
	454
	455	devc->xfer_data_out[6] = devc->samplerate_id;
	456	devc->xfer_data_out[7] = devc->trigger_type;
	457	devc->xfer_data_out[8] = devc->trigger_channel;
	458	devc->xfer_data_out[9] = 0x00;
	459
	460	tmp = GUINT16_TO_LE(devc->after_trigger_delay);
	461	memcpy(devc->xfer_data_out + 10, &tmp, sizeof(tmp));
	462
e52e712d	463	if ((ret = libusb_submit_transfer(devc->xfer_out)) != 0) {
c824eb63	464	sr_err("Submit transfer failed: %s.", libusb_error_name(ret));
e52e712d MS	465	return SR_ERR;
	466	}
	467
102f1239 BV	468	usb_source_add(sdi->session, drvc->sr_ctx, 100,
102f1239 BV	469	ikalogic_scanalogic2_receive_data, (void *)sdi);
e52e712d MS	470
	471	sr_dbg("Acquisition started successfully.");
	472
	473	/* Send header packet to the session bus. */
	474	std_session_send_df_header(cb_data, LOG_PREFIX);
	475
	476	devc->next_state = STATE_SAMPLE;
16e76bae MS	477
	478	return SR_OK;
	479	}
	480
	481	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	482	{
	483	(void)cb_data;
	484
	485	if (sdi->status != SR_ST_ACTIVE)
	486	return SR_ERR_DEV_CLOSED;
	487
e52e712d MS	488	sr_dbg("Stopping acquisition.");
	489
	490	sdi->status = SR_ST_STOPPING;
16e76bae MS	491
	492	return SR_OK;
	493	}
	494
	495	SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info = {
	496	.name = "ikalogic-scanalogic2",
e52e712d	497	.longname = "IKALOGIC Scanalogic-2",
16e76bae MS	498	.api_version = 1,
	499	.init = init,
	500	.cleanup = cleanup,
	501	.scan = scan,
	502	.dev_list = dev_list,
	503	.dev_clear = dev_clear,
	504	.config_get = config_get,
	505	.config_set = config_set,
	506	.config_list = config_list,
	507	.dev_open = dev_open,
	508	.dev_close = dev_close,
	509	.dev_acquisition_start = dev_acquisition_start,
	510	.dev_acquisition_stop = dev_acquisition_stop,
	511	.priv = NULL,
	512	};