[libsigrok.git] / hardware / zeroplus-logic-cube / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
 *
 * 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"

#define VENDOR_NAME			"ZEROPLUS"
#define USB_INTERFACE			0
#define USB_CONFIGURATION		1
#define NUM_TRIGGER_STAGES		4
#define TRIGGER_TYPE 			"01"
#define PACKET_SIZE			2048	/* ?? */

//#define ZP_EXPERIMENTAL

struct zp_model {
	uint16_t vid;
	uint16_t pid;
	char *model_name;
	unsigned int channels;
	unsigned int sample_depth;	/* In Ksamples/channel */
	unsigned int max_sampling_freq;
};

/*
 * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the
 * same 128K sample depth.
 */
static const struct zp_model zeroplus_models[] = {
	{0x0c12, 0x7002, "LAP-16128U",    16, 128,  200},
	{0x0c12, 0x7009, "LAP-C(16064)",  16, 64,   100},
	{0x0c12, 0x700a, "LAP-C(16128)",  16, 128,  200},
	/* TODO: We don't know anything about these.
	{0x0c12, 0x700b, "LAP-C(32128)",  32, 128,  200},
	{0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200},
	{0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200},
	*/
	{0x0c12, 0x700e, "LAP-C(16032)",  16, 32,   100},
	{0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
	{ 0, 0, 0, 0, 0, 0 }
};

static const int32_t hwcaps[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_SAMPLERATE,
	SR_CONF_CAPTURE_RATIO,
	SR_CONF_LIMIT_SAMPLES,
};

/*
 * ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7.
 * We currently ignore other untested/unsupported devices here.
 */
static const char *probe_names[] = {
	"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
	"B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7",
	NULL,
};

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

/*
 * The hardware supports more samplerates than these, but these are the
 * options hardcoded into the vendor's Windows GUI.
 */

static const uint64_t samplerates_100[] = {
	SR_HZ(100),
	SR_HZ(500),
	SR_KHZ(1),
	SR_KHZ(5),
	SR_KHZ(25),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(200),
	SR_KHZ(400),
	SR_KHZ(800),
	SR_MHZ(1),
	SR_MHZ(10),
	SR_MHZ(25),
	SR_MHZ(50),
	SR_MHZ(80),
	SR_MHZ(100),
};

const uint64_t samplerates_200[] = {
	SR_HZ(100),
	SR_HZ(500),
	SR_KHZ(1),
	SR_KHZ(5),
	SR_KHZ(25),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(200),
	SR_KHZ(400),
	SR_KHZ(800),
	SR_MHZ(1),
	SR_MHZ(10),
	SR_MHZ(25),
	SR_MHZ(50),
	SR_MHZ(80),
	SR_MHZ(100),
	SR_MHZ(150),
	SR_MHZ(200),
};

static int hw_dev_close(struct sr_dev_inst *sdi);

#if 0
static int configure_probes(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const struct sr_probe *probe;
	const GSList *l;
	int probe_bit, stage, i;
	char *tc;

	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	devc = sdi->priv;

	devc->probe_mask = 0;
	for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
		devc->trigger_mask[i] = 0;
		devc->trigger_value[i] = 0;
	}

	stage = -1;
	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->probe_mask |= probe_bit;

		if (probe->trigger) {
			stage = 0;
			for (tc = probe->trigger; *tc; tc++) {
				devc->trigger_mask[stage] |= probe_bit;
				if (*tc == '1')
					devc->trigger_value[stage] |= probe_bit;
				stage++;
				if (stage > NUM_TRIGGER_STAGES)
					return SR_ERR;
			}
		}
	}

	return SR_OK;
}
#endif

static int configure_probes(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	const GSList *l;
	const struct sr_probe *probe;
	char *tc;
	int type;

	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	devc = sdi->priv;

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

		if ((tc = probe->trigger)) {
			switch (*tc) {
			case '1':
				type = TRIGGER_HIGH;
				break;
			case '0':
				type = TRIGGER_LOW;
				break;
#if 0
			case 'r':
				type = TRIGGER_POSEDGE;
				break;
			case 'f':
				type = TRIGGER_NEGEDGE;
				break;
			case 'c':
				type = TRIGGER_ANYEDGE;
				break;
#endif
			default:
				return SR_ERR;
			}
			analyzer_add_trigger(probe->index, type);
			devc->trigger = 1;
		}
	}

	return SR_OK;
}

SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate)
{
	int i;

	for (i = 0; ARRAY_SIZE(samplerates_200); i++)
		if (samplerate == samplerates_200[i])
			break;

	if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) {
		sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate);
		return SR_ERR_ARG;
	}

	sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate);

	if (samplerate >= SR_MHZ(1))
		analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
	else if (samplerate >= SR_KHZ(1))
		analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
	else
		analyzer_set_freq(samplerate, FREQ_SCALE_HZ);

	devc->cur_samplerate = samplerate;

	return SR_OK;
}

static int clear_instances(void)
{
	GSList *l;
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;

	drvc = di->priv;
	for (l = drvc->instances; l; l = l->next) {
		sdi = l->data;
		if (!(devc = sdi->priv)) {
			/* Log error, but continue cleaning up the rest. */
			sr_err("%s: sdi->priv was NULL, continuing", __func__);
			continue;
		}
		usb = sdi->conn;
		sr_usb_dev_inst_free(usb);
		/* Properly close all devices... */
		hw_dev_close(sdi);
		/* ...and free all their memory. */
		sr_dev_inst_free(sdi);
	}
	g_slist_free(drvc->instances);
	drvc->instances = NULL;

	return SR_OK;
}

static int hw_init(struct sr_context *sr_ctx)
{
	return std_hw_init(sr_ctx, di, "zeroplus: ");
}

static GSList *hw_scan(GSList *options)
{
	struct sr_dev_inst *sdi;
	struct sr_probe *probe;
	struct drv_context *drvc;
	struct dev_context *devc;
	const struct zp_model *prof;
	struct libusb_device_descriptor des;
	libusb_device **devlist;
	GSList *devices;
	int ret, devcnt, i, j;

	(void)options;

	drvc = di->priv;

	devices = NULL;

	clear_instances();

	/* Find all ZEROPLUS analyzers and add them to device list. */
	devcnt = 0;
	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */

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

		prof = NULL;
		for (j = 0; j < zeroplus_models[j].vid; j++) {
			if (des.idVendor == zeroplus_models[j].vid &&
				des.idProduct == zeroplus_models[j].pid) {
				prof = &zeroplus_models[j];
			}
		}
		/* Skip if the device was not found. */
		if (!prof)
			continue;
		sr_info("Found ZEROPLUS %s.", prof->model_name);

		/* Register the device with libsigrok. */
		if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
				VENDOR_NAME, prof->model_name, NULL))) {
			sr_err("%s: sr_dev_inst_new failed", __func__);
			return NULL;
		}
		sdi->driver = di;

		/* Allocate memory for our private driver context. */
		if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
			sr_err("Device context malloc failed.");
			return NULL;
		}

		sdi->priv = devc;
		devc->prof = prof;
		devc->num_channels = prof->channels;
#ifdef ZP_EXPERIMENTAL
		devc->max_memory_size = 128 * 1024;
		devc->max_samplerate = 200;
#else
		devc->max_memory_size = prof->sample_depth * 1024;
		devc->max_samplerate = prof->max_sampling_freq;
#endif
		devc->max_samplerate *= SR_MHZ(1);
		devc->memory_size = MEMORY_SIZE_8K;
		// memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);

		/* Fill in probelist according to this device's profile. */
		for (j = 0; j < devc->num_channels; j++) {
			if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
					probe_names[j])))
				return NULL;
			sdi->probes = g_slist_append(sdi->probes, probe);
		}

		devices = g_slist_append(devices, sdi);
		drvc->instances = g_slist_append(drvc->instances, sdi);
		sdi->conn = sr_usb_dev_inst_new(
			libusb_get_bus_number(devlist[i]),
			libusb_get_device_address(devlist[i]), NULL);
		devcnt++;

	}
	libusb_free_device_list(devlist, 1);

	return devices;
}

static GSList *hw_dev_list(void)
{
	return ((struct drv_context *)(di->priv))->instances;
}

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

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

	if (!(devc = sdi->priv)) {
		sr_err("%s: sdi->priv was NULL", __func__);
		return SR_ERR_ARG;
	}

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

	dev = NULL;
	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 (libusb_get_bus_number(devlist[i]) == usb->bus
		    && libusb_get_device_address(devlist[i]) == usb->address) {
			dev = devlist[i];
			break;
		}
	}
	if (!dev) {
		sr_err("Device on bus %d address %d disappeared!",
		       usb->bus, usb->address);
		return SR_ERR;
	}

	if (!(ret = libusb_open(dev, &(usb->devhdl)))) {
		sdi->status = SR_ST_ACTIVE;
		sr_info("Opened device %d on %d.%d interface %d.",
			sdi->index, usb->bus, usb->address, USB_INTERFACE);
	} else {
		sr_err("Failed to open device: %s.", libusb_error_name(ret));
		return SR_ERR;
	}

	ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION);
	if (ret < 0) {
		sr_err("Unable to set USB configuration %d: %s.",
		       USB_CONFIGURATION, libusb_error_name(ret));
		return SR_ERR;
	}

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

	/* Set default configuration after power on. */
	if (analyzer_read_status(usb->devhdl) == 0)
		analyzer_configure(usb->devhdl);

	analyzer_reset(usb->devhdl);
	analyzer_initialize(usb->devhdl);

	//analyzer_set_memory_size(MEMORY_SIZE_512K);
	// analyzer_set_freq(g_freq, g_freq_scale);
	analyzer_set_trigger_count(1);
	// analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
	// * get_memory_size(g_memory_size)) / 100) >> 2);

#if 0
	if (g_double_mode == 1)
		analyzer_set_compression(COMPRESSION_DOUBLE);
	else if (g_compression == 1)
		analyzer_set_compression(COMPRESSION_ENABLE);
	else
#endif
	analyzer_set_compression(COMPRESSION_NONE);

	if (devc->cur_samplerate == 0) {
		/* Samplerate hasn't been set. Default to 1MHz. */
		analyzer_set_freq(1, FREQ_SCALE_MHZ);
		devc->cur_samplerate = SR_MHZ(1);
	}

	return SR_OK;
}

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

	usb = sdi->conn;

	if (!usb->devhdl)
		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_reset_device(usb->devhdl);
	libusb_close(usb->devhdl);
	usb->devhdl = NULL;
	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int hw_cleanup(void)
{
	struct drv_context *drvc;

	if (!(drvc = di->priv))
		return SR_OK;

	clear_instances();

	return SR_OK;
}

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

	switch (id) {
	case SR_CONF_SAMPLERATE:
		if (sdi) {
			devc = sdi->priv;
			*data = g_variant_new_uint64(devc->cur_samplerate);
			sr_spew("Returning samplerate: %" PRIu64 "Hz.",
				devc->cur_samplerate);
		} else
			return SR_ERR;
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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

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

	if (!(devc = sdi->priv)) {
		sr_err("%s: sdi->priv was NULL", __func__);
		return SR_ERR_ARG;
	}

	switch (id) {
	case SR_CONF_SAMPLERATE:
		return zp_set_samplerate(devc, g_variant_get_uint64(data));
	case SR_CONF_LIMIT_SAMPLES:
		return set_limit_samples(devc, g_variant_get_uint64(data));
	case SR_CONF_CAPTURE_RATIO:
		return set_capture_ratio(devc, g_variant_get_uint64(data));
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

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

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
		break;
	case SR_CONF_SAMPLERATE:
		devc = sdi->priv;
		g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
		if (devc->prof->max_sampling_freq == 100) {
			gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
					samplerates_100, ARRAY_SIZE(samplerates_100),
					sizeof(uint64_t));
		} else if (devc->prof->max_sampling_freq == 200) {
			gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
					samplerates_200, ARRAY_SIZE(samplerates_200),
					sizeof(uint64_t));
		} else {
			sr_err("Internal error: Unknown max. samplerate: %d.",
			       devc->prof->max_sampling_freq);
			return SR_ERR_ARG;
		}
		g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
		*data = g_variant_builder_end(&gvb);
		break;
	case SR_CONF_TRIGGER_TYPE:
		*data = g_variant_new_string(TRIGGER_TYPE);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
		void *cb_data)
{
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_logic logic;
	//uint64_t samples_read;
	int res;
	unsigned int packet_num, n;
	unsigned char *buf;

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

	if (!(devc = sdi->priv)) {
		sr_err("%s: sdi->priv was NULL", __func__);
		return SR_ERR_ARG;
	}

	if (configure_probes(sdi) != SR_OK) {
		sr_err("Failed to configure probes.");
		return SR_ERR;
	}

	usb = sdi->conn;

	set_triggerbar(devc);

	/* Push configured settings to device. */
	analyzer_configure(usb->devhdl);

	analyzer_start(usb->devhdl);
	sr_info("Waiting for data.");
	analyzer_wait_data(usb->devhdl);

	sr_info("Stop address    = 0x%x.",
		analyzer_get_stop_address(usb->devhdl));
	sr_info("Now address     = 0x%x.",
		analyzer_get_now_address(usb->devhdl));
	sr_info("Trigger address = 0x%x.",
		analyzer_get_trigger_address(usb->devhdl));

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

	if (!(buf = g_try_malloc(PACKET_SIZE))) {
		sr_err("Packet buffer malloc failed.");
		return SR_ERR_MALLOC;
	}

	//samples_read = 0;
	analyzer_read_start(usb->devhdl);
	/* Send the incoming transfer to the session bus. */
	n = get_memory_size(devc->memory_size);
	if (devc->max_memory_size * 4 < n)
		n = devc->max_memory_size * 4;
	for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
		res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE);
		sr_info("Tried to read %d bytes, actually read %d bytes.",
			PACKET_SIZE, res);

		packet.type = SR_DF_LOGIC;
		packet.payload = &logic;
		logic.length = PACKET_SIZE;
		logic.unitsize = 4;
		logic.data = buf;
		sr_session_send(cb_data, &packet);
		//samples_read += res / 4;
	}
	analyzer_read_stop(usb->devhdl);
	g_free(buf);

	packet.type = SR_DF_END;
	sr_session_send(cb_data, &packet);

	return SR_OK;
}

/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	struct sr_datafeed_packet packet;

	packet.type = SR_DF_END;
	sr_session_send(cb_data, &packet);

	if (!(devc = sdi->priv)) {
		sr_err("%s: sdi->priv was NULL", __func__);
		return SR_ERR_BUG;
	}

	usb = sdi->conn;
	analyzer_reset(usb->devhdl);
	/* TODO: Need to cancel and free any queued up transfers. */

	return SR_OK;
}

SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
	.name = "zeroplus-logic-cube",
	.longname = "ZEROPLUS Logic Cube LAP-C series",
	.api_version = 1,
	.init = hw_init,
	.cleanup = hw_cleanup,
	.scan = hw_scan,
	.dev_list = hw_dev_list,
	.dev_clear = hw_cleanup,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
	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
	22	#define VENDOR_NAME "ZEROPLUS"
	23	#define USB_INTERFACE 0
	24	#define USB_CONFIGURATION 1
	25	#define NUM_TRIGGER_STAGES 4
	26	#define TRIGGER_TYPE "01"
	27	#define PACKET_SIZE 2048 /* ?? */
	28
	29	//#define ZP_EXPERIMENTAL
	30
	31	struct zp_model {
	32	uint16_t vid;
	33	uint16_t pid;
	34	char *model_name;
	35	unsigned int channels;
	36	unsigned int sample_depth; /* In Ksamples/channel */
	37	unsigned int max_sampling_freq;
	38	};
	39
	40	/*
	41	* Note -- 16032, 16064 and 16128 usually -- but not always -- have the
	42	* same 128K sample depth.
	43	*/
	44	static const struct zp_model zeroplus_models[] = {
	45	{0x0c12, 0x7002, "LAP-16128U", 16, 128, 200},
	46	{0x0c12, 0x7009, "LAP-C(16064)", 16, 64, 100},
	47	{0x0c12, 0x700a, "LAP-C(16128)", 16, 128, 200},
	48	/* TODO: We don't know anything about these.
	49	{0x0c12, 0x700b, "LAP-C(32128)", 32, 128, 200},
	50	{0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200},
	51	{0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200},
	52	*/
	53	{0x0c12, 0x700e, "LAP-C(16032)", 16, 32, 100},
	54	{0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
	55	{ 0, 0, 0, 0, 0, 0 }
	56	};
	57
	58	static const int32_t hwcaps[] = {
	59	SR_CONF_LOGIC_ANALYZER,
	60	SR_CONF_SAMPLERATE,
	61	SR_CONF_CAPTURE_RATIO,
	62	SR_CONF_LIMIT_SAMPLES,
	63	};
	64
	65	/*
	66	* ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7.
	67	* We currently ignore other untested/unsupported devices here.
	68	*/
	69	static const char *probe_names[] = {
	70	"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
	71	"B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7",
	72	NULL,
	73	};
	74
	75	SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
	76	static struct sr_dev_driver *di = &zeroplus_logic_cube_driver_info;
	77
	78	/*
	79	* The hardware supports more samplerates than these, but these are the
	80	* options hardcoded into the vendor's Windows GUI.
	81	*/
	82
	83	static const uint64_t samplerates_100[] = {
	84	SR_HZ(100),
	85	SR_HZ(500),
	86	SR_KHZ(1),
	87	SR_KHZ(5),
	88	SR_KHZ(25),
	89	SR_KHZ(50),
	90	SR_KHZ(100),
	91	SR_KHZ(200),
	92	SR_KHZ(400),
	93	SR_KHZ(800),
	94	SR_MHZ(1),
	95	SR_MHZ(10),
	96	SR_MHZ(25),
	97	SR_MHZ(50),
	98	SR_MHZ(80),
	99	SR_MHZ(100),
	100	};
	101
	102	const uint64_t samplerates_200[] = {
	103	SR_HZ(100),
	104	SR_HZ(500),
	105	SR_KHZ(1),
	106	SR_KHZ(5),
	107	SR_KHZ(25),
	108	SR_KHZ(50),
	109	SR_KHZ(100),
	110	SR_KHZ(200),
	111	SR_KHZ(400),
	112	SR_KHZ(800),
	113	SR_MHZ(1),
	114	SR_MHZ(10),
	115	SR_MHZ(25),
	116	SR_MHZ(50),
	117	SR_MHZ(80),
	118	SR_MHZ(100),
	119	SR_MHZ(150),
	120	SR_MHZ(200),
	121	};
	122
	123	static int hw_dev_close(struct sr_dev_inst *sdi);
	124
	125	#if 0
	126	static int configure_probes(const struct sr_dev_inst *sdi)
	127	{
	128	struct dev_context *devc;
	129	const struct sr_probe *probe;
	130	const GSList *l;
	131	int probe_bit, stage, i;
	132	char *tc;
	133
	134	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	135	devc = sdi->priv;
	136
	137	devc->probe_mask = 0;
	138	for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
	139	devc->trigger_mask[i] = 0;
	140	devc->trigger_value[i] = 0;
	141	}
	142
	143	stage = -1;
	144	for (l = sdi->probes; l; l = l->next) {
	145	probe = (struct sr_probe *)l->data;
	146	if (probe->enabled == FALSE)
	147	continue;
	148	probe_bit = 1 << (probe->index);
	149	devc->probe_mask \|= probe_bit;
	150
	151	if (probe->trigger) {
	152	stage = 0;
	153	for (tc = probe->trigger; *tc; tc++) {
	154	devc->trigger_mask[stage] \|= probe_bit;
	155	if (*tc == '1')
	156	devc->trigger_value[stage] \|= probe_bit;
	157	stage++;
	158	if (stage > NUM_TRIGGER_STAGES)
	159	return SR_ERR;
	160	}
	161	}
	162	}
	163
	164	return SR_OK;
	165	}
	166	#endif
	167
	168	static int configure_probes(const struct sr_dev_inst *sdi)
	169	{
	170	struct dev_context *devc;
	171	const GSList *l;
	172	const struct sr_probe *probe;
	173	char *tc;
	174	int type;
	175
	176	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	177	devc = sdi->priv;
	178
	179	for (l = sdi->probes; l; l = l->next) {
	180	probe = (struct sr_probe *)l->data;
	181	if (probe->enabled == FALSE)
	182	continue;
	183
	184	if ((tc = probe->trigger)) {
	185	switch (*tc) {
	186	case '1':
	187	type = TRIGGER_HIGH;
	188	break;
	189	case '0':
	190	type = TRIGGER_LOW;
	191	break;
	192	#if 0
	193	case 'r':
	194	type = TRIGGER_POSEDGE;
	195	break;
	196	case 'f':
	197	type = TRIGGER_NEGEDGE;
	198	break;
	199	case 'c':
	200	type = TRIGGER_ANYEDGE;
	201	break;
	202	#endif
	203	default:
	204	return SR_ERR;
	205	}
	206	analyzer_add_trigger(probe->index, type);
	207	devc->trigger = 1;
	208	}
	209	}
	210
	211	return SR_OK;
	212	}
	213
	214	SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate)
	215	{
	216	int i;
	217
	218	for (i = 0; ARRAY_SIZE(samplerates_200); i++)
	219	if (samplerate == samplerates_200[i])
	220	break;
	221
	222	if (i == ARRAY_SIZE(samplerates_200) \|\| samplerate > devc->max_samplerate) {
	223	sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate);
	224	return SR_ERR_ARG;
	225	}
	226
	227	sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate);
	228
	229	if (samplerate >= SR_MHZ(1))
	230	analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
	231	else if (samplerate >= SR_KHZ(1))
	232	analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
	233	else
	234	analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
	235
	236	devc->cur_samplerate = samplerate;
	237
	238	return SR_OK;
	239	}
	240
	241	static int clear_instances(void)
	242	{
	243	GSList *l;
	244	struct sr_dev_inst *sdi;
	245	struct drv_context *drvc;
	246	struct dev_context *devc;
	247	struct sr_usb_dev_inst *usb;
	248
	249	drvc = di->priv;
	250	for (l = drvc->instances; l; l = l->next) {
	251	sdi = l->data;
	252	if (!(devc = sdi->priv)) {
	253	/* Log error, but continue cleaning up the rest. */
	254	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	255	continue;
	256	}
	257	usb = sdi->conn;
	258	sr_usb_dev_inst_free(usb);
	259	/* Properly close all devices... */
	260	hw_dev_close(sdi);
	261	/* ...and free all their memory. */
	262	sr_dev_inst_free(sdi);
	263	}
	264	g_slist_free(drvc->instances);
	265	drvc->instances = NULL;
	266
	267	return SR_OK;
	268	}
	269
	270	static int hw_init(struct sr_context *sr_ctx)
	271	{
	272	return std_hw_init(sr_ctx, di, "zeroplus: ");
	273	}
	274
	275	static GSList hw_scan(GSList options)
	276	{
	277	struct sr_dev_inst *sdi;
	278	struct sr_probe *probe;
	279	struct drv_context *drvc;
	280	struct dev_context *devc;
	281	const struct zp_model *prof;
	282	struct libusb_device_descriptor des;
	283	libusb_device **devlist;
	284	GSList *devices;
	285	int ret, devcnt, i, j;
	286
	287	(void)options;
	288
	289	drvc = di->priv;
	290
	291	devices = NULL;
	292
	293	clear_instances();
	294
	295	/* Find all ZEROPLUS analyzers and add them to device list. */
	296	devcnt = 0;
	297	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */
	298
	299	for (i = 0; devlist[i]; i++) {
	300	ret = libusb_get_device_descriptor(devlist[i], &des);
	301	if (ret != 0) {
	302	sr_err("Failed to get device descriptor: %s.",
	303	libusb_error_name(ret));
	304	continue;
	305	}
	306
	307	prof = NULL;
	308	for (j = 0; j < zeroplus_models[j].vid; j++) {
	309	if (des.idVendor == zeroplus_models[j].vid &&
	310	des.idProduct == zeroplus_models[j].pid) {
	311	prof = &zeroplus_models[j];
	312	}
	313	}
	314	/* Skip if the device was not found. */
	315	if (!prof)
	316	continue;
	317	sr_info("Found ZEROPLUS %s.", prof->model_name);
	318
	319	/* Register the device with libsigrok. */
	320	if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
	321	VENDOR_NAME, prof->model_name, NULL))) {
	322	sr_err("%s: sr_dev_inst_new failed", __func__);
	323	return NULL;
	324	}
	325	sdi->driver = di;
	326
	327	/* Allocate memory for our private driver context. */
	328	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	329	sr_err("Device context malloc failed.");
	330	return NULL;
	331	}
	332
	333	sdi->priv = devc;
	334	devc->prof = prof;
	335	devc->num_channels = prof->channels;
	336	#ifdef ZP_EXPERIMENTAL
	337	devc->max_memory_size = 128 * 1024;
	338	devc->max_samplerate = 200;
	339	#else
	340	devc->max_memory_size = prof->sample_depth * 1024;
	341	devc->max_samplerate = prof->max_sampling_freq;
	342	#endif
	343	devc->max_samplerate *= SR_MHZ(1);
	344	devc->memory_size = MEMORY_SIZE_8K;
	345	// memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);
	346
	347	/* Fill in probelist according to this device's profile. */
	348	for (j = 0; j < devc->num_channels; j++) {
	349	if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
	350	probe_names[j])))
	351	return NULL;
	352	sdi->probes = g_slist_append(sdi->probes, probe);
	353	}
	354
	355	devices = g_slist_append(devices, sdi);
	356	drvc->instances = g_slist_append(drvc->instances, sdi);
	357	sdi->conn = sr_usb_dev_inst_new(
	358	libusb_get_bus_number(devlist[i]),
	359	libusb_get_device_address(devlist[i]), NULL);
	360	devcnt++;
	361
	362	}
	363	libusb_free_device_list(devlist, 1);
	364
	365	return devices;
	366	}
	367
	368	static GSList *hw_dev_list(void)
	369	{
	370	return ((struct drv_context *)(di->priv))->instances;
	371	}
	372
	373	static int hw_dev_open(struct sr_dev_inst *sdi)
	374	{
	375	struct dev_context *devc;
	376	struct drv_context *drvc;
	377	struct sr_usb_dev_inst *usb;
	378	libusb_device *devlist, dev;
	379	struct libusb_device_descriptor des;
	380	int device_count, ret, i;
	381
	382	drvc = di->priv;
	383	usb = sdi->conn;
	384
	385	if (!(devc = sdi->priv)) {
	386	sr_err("%s: sdi->priv was NULL", __func__);
	387	return SR_ERR_ARG;
	388	}
	389
	390	device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx,
	391	&devlist);
	392	if (device_count < 0) {
	393	sr_err("Failed to retrieve device list.");
	394	return SR_ERR;
	395	}
	396
	397	dev = NULL;
	398	for (i = 0; i < device_count; i++) {
	399	if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
	400	sr_err("Failed to get device descriptor: %s.",
	401	libusb_error_name(ret));
	402	continue;
	403	}
	404	if (libusb_get_bus_number(devlist[i]) == usb->bus
	405	&& libusb_get_device_address(devlist[i]) == usb->address) {
	406	dev = devlist[i];
	407	break;
	408	}
	409	}
	410	if (!dev) {
	411	sr_err("Device on bus %d address %d disappeared!",
	412	usb->bus, usb->address);
	413	return SR_ERR;
	414	}
	415
	416	if (!(ret = libusb_open(dev, &(usb->devhdl)))) {
	417	sdi->status = SR_ST_ACTIVE;
	418	sr_info("Opened device %d on %d.%d interface %d.",
	419	sdi->index, usb->bus, usb->address, USB_INTERFACE);
	420	} else {
	421	sr_err("Failed to open device: %s.", libusb_error_name(ret));
	422	return SR_ERR;
	423	}
	424
	425	ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION);
	426	if (ret < 0) {
	427	sr_err("Unable to set USB configuration %d: %s.",
	428	USB_CONFIGURATION, libusb_error_name(ret));
	429	return SR_ERR;
	430	}
	431
	432	ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
	433	if (ret != 0) {
	434	sr_err("Unable to claim interface: %s.",
	435	libusb_error_name(ret));
	436	return SR_ERR;
	437	}
	438
	439	/* Set default configuration after power on. */
	440	if (analyzer_read_status(usb->devhdl) == 0)
	441	analyzer_configure(usb->devhdl);
	442
	443	analyzer_reset(usb->devhdl);
	444	analyzer_initialize(usb->devhdl);
	445
	446	//analyzer_set_memory_size(MEMORY_SIZE_512K);
	447	// analyzer_set_freq(g_freq, g_freq_scale);
	448	analyzer_set_trigger_count(1);
	449	// analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
	450	// * get_memory_size(g_memory_size)) / 100) >> 2);
	451
	452	#if 0
	453	if (g_double_mode == 1)
	454	analyzer_set_compression(COMPRESSION_DOUBLE);
	455	else if (g_compression == 1)
	456	analyzer_set_compression(COMPRESSION_ENABLE);
	457	else
	458	#endif
	459	analyzer_set_compression(COMPRESSION_NONE);
	460
	461	if (devc->cur_samplerate == 0) {
	462	/* Samplerate hasn't been set. Default to 1MHz. */
	463	analyzer_set_freq(1, FREQ_SCALE_MHZ);
	464	devc->cur_samplerate = SR_MHZ(1);
	465	}
	466
	467	return SR_OK;
	468	}
	469
	470	static int hw_dev_close(struct sr_dev_inst *sdi)
	471	{
	472	struct sr_usb_dev_inst *usb;
	473
	474	usb = sdi->conn;
	475
	476	if (!usb->devhdl)
	477	return SR_ERR;
	478
	479	sr_info("Closing device %d on %d.%d interface %d.", sdi->index,
	480	usb->bus, usb->address, USB_INTERFACE);
	481	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	482	libusb_reset_device(usb->devhdl);
	483	libusb_close(usb->devhdl);
	484	usb->devhdl = NULL;
	485	sdi->status = SR_ST_INACTIVE;
	486
	487	return SR_OK;
	488	}
	489
	490	static int hw_cleanup(void)
	491	{
	492	struct drv_context *drvc;
	493
	494	if (!(drvc = di->priv))
	495	return SR_OK;
	496
	497	clear_instances();
	498
	499	return SR_OK;
	500	}
	501
	502	static int config_get(int id, GVariant *data, const struct sr_dev_inst sdi)
	503	{
	504	struct dev_context *devc;
	505
	506	switch (id) {
	507	case SR_CONF_SAMPLERATE:
	508	if (sdi) {
	509	devc = sdi->priv;
	510	*data = g_variant_new_uint64(devc->cur_samplerate);
	511	sr_spew("Returning samplerate: %" PRIu64 "Hz.",
	512	devc->cur_samplerate);
	513	} else
	514	return SR_ERR;
	515	break;
	516	default:
	517	return SR_ERR_NA;
	518	}
	519
	520	return SR_OK;
	521	}
	522
	523	static int config_set(int id, GVariant data, const struct sr_dev_inst sdi)
	524	{
	525	struct dev_context *devc;
	526
	527	if (sdi->status != SR_ST_ACTIVE)
	528	return SR_ERR_DEV_CLOSED;
	529
	530	if (!(devc = sdi->priv)) {
	531	sr_err("%s: sdi->priv was NULL", __func__);
	532	return SR_ERR_ARG;
	533	}
	534
	535	switch (id) {
	536	case SR_CONF_SAMPLERATE:
	537	return zp_set_samplerate(devc, g_variant_get_uint64(data));
	538	case SR_CONF_LIMIT_SAMPLES:
	539	return set_limit_samples(devc, g_variant_get_uint64(data));
	540	case SR_CONF_CAPTURE_RATIO:
	541	return set_capture_ratio(devc, g_variant_get_uint64(data));
	542	default:
	543	return SR_ERR_NA;
	544	}
	545
	546	return SR_OK;
	547	}
	548
	549	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	550	{
	551	struct dev_context *devc;
	552	GVariant *gvar;
	553	GVariantBuilder gvb;
	554
	555	switch (key) {
	556	case SR_CONF_DEVICE_OPTIONS:
	557	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	558	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	559	break;
	560	case SR_CONF_SAMPLERATE:
	561	devc = sdi->priv;
	562	g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
	563	if (devc->prof->max_sampling_freq == 100) {
	564	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
	565	samplerates_100, ARRAY_SIZE(samplerates_100),
	566	sizeof(uint64_t));
	567	} else if (devc->prof->max_sampling_freq == 200) {
	568	gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
	569	samplerates_200, ARRAY_SIZE(samplerates_200),
	570	sizeof(uint64_t));
	571	} else {
	572	sr_err("Internal error: Unknown max. samplerate: %d.",
	573	devc->prof->max_sampling_freq);
	574	return SR_ERR_ARG;
	575	}
	576	g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
	577	*data = g_variant_builder_end(&gvb);
	578	break;
	579	case SR_CONF_TRIGGER_TYPE:
	580	*data = g_variant_new_string(TRIGGER_TYPE);
	581	break;
	582	default:
	583	return SR_ERR_NA;
	584	}
	585
	586	return SR_OK;
	587	}
	588
	589	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	590	void *cb_data)
	591	{
	592	struct dev_context *devc;
	593	struct sr_usb_dev_inst *usb;
	594	struct sr_datafeed_packet packet;
	595	struct sr_datafeed_logic logic;
	596	//uint64_t samples_read;
	597	int res;
	598	unsigned int packet_num, n;
	599	unsigned char *buf;
	600
	601	if (sdi->status != SR_ST_ACTIVE)
	602	return SR_ERR_DEV_CLOSED;
	603
	604	if (!(devc = sdi->priv)) {
	605	sr_err("%s: sdi->priv was NULL", __func__);
	606	return SR_ERR_ARG;
	607	}
	608
	609	if (configure_probes(sdi) != SR_OK) {
	610	sr_err("Failed to configure probes.");
	611	return SR_ERR;
	612	}
	613
	614	usb = sdi->conn;
	615
	616	set_triggerbar(devc);
	617
	618	/* Push configured settings to device. */
	619	analyzer_configure(usb->devhdl);
	620
	621	analyzer_start(usb->devhdl);
	622	sr_info("Waiting for data.");
	623	analyzer_wait_data(usb->devhdl);
	624
	625	sr_info("Stop address = 0x%x.",
	626	analyzer_get_stop_address(usb->devhdl));
	627	sr_info("Now address = 0x%x.",
	628	analyzer_get_now_address(usb->devhdl));
	629	sr_info("Trigger address = 0x%x.",
	630	analyzer_get_trigger_address(usb->devhdl));
	631
	632	/* Send header packet to the session bus. */
	633	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	634
	635	if (!(buf = g_try_malloc(PACKET_SIZE))) {
	636	sr_err("Packet buffer malloc failed.");
	637	return SR_ERR_MALLOC;
	638	}
	639
	640	//samples_read = 0;
	641	analyzer_read_start(usb->devhdl);
	642	/* Send the incoming transfer to the session bus. */
	643	n = get_memory_size(devc->memory_size);
	644	if (devc->max_memory_size * 4 < n)
	645	n = devc->max_memory_size * 4;
	646	for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
	647	res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE);
	648	sr_info("Tried to read %d bytes, actually read %d bytes.",
	649	PACKET_SIZE, res);
	650
	651	packet.type = SR_DF_LOGIC;
	652	packet.payload = &logic;
	653	logic.length = PACKET_SIZE;
	654	logic.unitsize = 4;
	655	logic.data = buf;
	656	sr_session_send(cb_data, &packet);
	657	//samples_read += res / 4;
	658	}
	659	analyzer_read_stop(usb->devhdl);
	660	g_free(buf);
	661
	662	packet.type = SR_DF_END;
	663	sr_session_send(cb_data, &packet);
	664
	665	return SR_OK;
	666	}
	667
	668	/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
	669	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	670	{
	671	struct dev_context *devc;
	672	struct sr_usb_dev_inst *usb;
	673	struct sr_datafeed_packet packet;
	674
	675	packet.type = SR_DF_END;
	676	sr_session_send(cb_data, &packet);
	677
	678	if (!(devc = sdi->priv)) {
	679	sr_err("%s: sdi->priv was NULL", __func__);
	680	return SR_ERR_BUG;
	681	}
	682
	683	usb = sdi->conn;
	684	analyzer_reset(usb->devhdl);
	685	/* TODO: Need to cancel and free any queued up transfers. */
	686
	687	return SR_OK;
	688	}
	689
	690	SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
	691	.name = "zeroplus-logic-cube",
	692	.longname = "ZEROPLUS Logic Cube LAP-C series",
	693	.api_version = 1,
	694	.init = hw_init,
	695	.cleanup = hw_cleanup,
	696	.scan = hw_scan,
	697	.dev_list = hw_dev_list,
	698	.dev_clear = hw_cleanup,
	699	.config_get = config_get,
	700	.config_set = config_set,
	701	.config_list = config_list,
	702	.dev_open = hw_dev_open,
	703	.dev_close = hw_dev_close,
	704	.dev_acquisition_start = hw_dev_acquisition_start,
	705	.dev_acquisition_stop = hw_dev_acquisition_stop,
	706	.priv = NULL,
	707	};