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

/*
 * This file is part of the sigrok 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, 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 int hwcaps[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_SAMPLERATE,
	SR_CONF_CAPTURE_RATIO,
	SR_CONF_LIMIT_SAMPLES,
	0,
};

/*
 * 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 zp_supported_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),
	0,
};

const uint64_t zp_supported_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),
	0,
};

static const struct sr_samplerates samplerates_100 = {
	.low  = 0,
	.high = 0,
	.step = 0,
	.list = zp_supported_samplerates_100,
};

static const struct sr_samplerates samplerates_200 = {
	.low  = 0,
	.high = 0,
	.step = 0,
	.list = zp_supported_samplerates_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;
}

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

	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;
		}
		sr_usb_dev_inst_free(devc->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);
		devc->usb = 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;
	libusb_device **devlist, *dev;
	struct libusb_device_descriptor des;
	int device_count, ret, i;

	drvc = di->priv;

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

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

	ret = libusb_set_configuration(devc->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(devc->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(devc->usb->devhdl) == 0)
		analyzer_configure(devc->usb->devhdl);

	analyzer_reset(devc->usb->devhdl);
	analyzer_initialize(devc->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 dev_context *devc;

	devc = sdi->priv;

	if (!devc->usb->devhdl)
		return SR_ERR;

	sr_info("Closing device %d on %d.%d interface %d.", sdi->index,
		devc->usb->bus, devc->usb->address, USB_INTERFACE);
	libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
	libusb_reset_device(devc->usb->devhdl);
	libusb_close(devc->usb->devhdl);
	devc->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, const void **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

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

	return SR_OK;
}

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

	if (!sdi) {
		sr_err("%s: sdi was NULL", __func__);
		return SR_ERR_ARG;
	}

	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, *(const uint64_t *)value);
	case SR_CONF_LIMIT_SAMPLES:
		return set_limit_samples(devc, *(const uint64_t *)value);
	case SR_CONF_CAPTURE_RATIO:
		return set_capture_ratio(devc, *(const uint64_t *)value);
	default:
		return SR_ERR;
	}

	return SR_OK;
}

static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = hwcaps;
		break;
	case SR_CONF_SAMPLERATE:
		devc = sdi->priv;
		if (devc->prof->max_sampling_freq == 100) {
			*data = &samplerates_100;
		} else if (devc->prof->max_sampling_freq == 200) {
			*data = &samplerates_200;
		} else {
			sr_err("Internal error: Unknown max. samplerate: %d.",
			       devc->prof->max_sampling_freq);
			return SR_ERR_ARG;
		}
		break;
	case SR_CONF_TRIGGER_TYPE:
		*data = TRIGGER_TYPE;
		break;
	default:
		return SR_ERR_ARG;
	}

	return SR_OK;
}

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

	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;
	}

	set_triggerbar(devc);

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

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

	sr_info("Stop address    = 0x%x.",
		analyzer_get_stop_address(devc->usb->devhdl));
	sr_info("Now address     = 0x%x.",
		analyzer_get_now_address(devc->usb->devhdl));
	sr_info("Trigger address = 0x%x.",
		analyzer_get_trigger_address(devc->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(devc->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(devc->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(devc->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 sr_datafeed_packet packet;
	struct dev_context *devc;

	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;
	}

	analyzer_reset(devc->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 sigrok 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, 0x7009, "LAP-C(16064)", 16, 64, 100},
	46	{0x0c12, 0x700a, "LAP-C(16128)", 16, 128, 200},
	47	/* TODO: We don't know anything about these.
	48	{0x0c12, 0x700b, "LAP-C(32128)", 32, 128, 200},
	49	{0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200},
	50	{0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200},
	51	*/
	52	{0x0c12, 0x700e, "LAP-C(16032)", 16, 32, 100},
	53	{0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
	54	{ 0, 0, 0, 0, 0, 0 }
	55	};
	56
	57	static const int hwcaps[] = {
	58	SR_CONF_LOGIC_ANALYZER,
	59	SR_CONF_SAMPLERATE,
	60	SR_CONF_CAPTURE_RATIO,
	61	SR_CONF_LIMIT_SAMPLES,
	62	0,
	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 zp_supported_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	0,
	101	};
	102
	103	const uint64_t zp_supported_samplerates_200[] = {
	104	SR_HZ(100),
	105	SR_HZ(500),
	106	SR_KHZ(1),
	107	SR_KHZ(5),
	108	SR_KHZ(25),
	109	SR_KHZ(50),
	110	SR_KHZ(100),
	111	SR_KHZ(200),
	112	SR_KHZ(400),
	113	SR_KHZ(800),
	114	SR_MHZ(1),
	115	SR_MHZ(10),
	116	SR_MHZ(25),
	117	SR_MHZ(50),
	118	SR_MHZ(80),
	119	SR_MHZ(100),
	120	SR_MHZ(150),
	121	SR_MHZ(200),
	122	0,
	123	};
	124
	125	static const struct sr_samplerates samplerates_100 = {
	126	.low = 0,
	127	.high = 0,
	128	.step = 0,
	129	.list = zp_supported_samplerates_100,
	130	};
	131
	132	static const struct sr_samplerates samplerates_200 = {
	133	.low = 0,
	134	.high = 0,
	135	.step = 0,
	136	.list = zp_supported_samplerates_200,
	137	};
	138
	139	static int hw_dev_close(struct sr_dev_inst *sdi);
	140
	141	#if 0
	142	static int configure_probes(const struct sr_dev_inst *sdi)
	143	{
	144	struct dev_context *devc;
	145	const struct sr_probe *probe;
	146	const GSList *l;
	147	int probe_bit, stage, i;
	148	char *tc;
	149
	150	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	151	devc = sdi->priv;
	152
	153	devc->probe_mask = 0;
	154	for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
	155	devc->trigger_mask[i] = 0;
	156	devc->trigger_value[i] = 0;
	157	}
	158
	159	stage = -1;
	160	for (l = sdi->probes; l; l = l->next) {
	161	probe = (struct sr_probe *)l->data;
	162	if (probe->enabled == FALSE)
	163	continue;
	164	probe_bit = 1 << (probe->index);
	165	devc->probe_mask \|= probe_bit;
	166
	167	if (probe->trigger) {
	168	stage = 0;
	169	for (tc = probe->trigger; *tc; tc++) {
	170	devc->trigger_mask[stage] \|= probe_bit;
	171	if (*tc == '1')
	172	devc->trigger_value[stage] \|= probe_bit;
	173	stage++;
	174	if (stage > NUM_TRIGGER_STAGES)
	175	return SR_ERR;
	176	}
	177	}
	178	}
	179
	180	return SR_OK;
	181	}
	182	#endif
	183
	184	static int configure_probes(const struct sr_dev_inst *sdi)
	185	{
	186	struct dev_context *devc;
	187	const GSList *l;
	188	const struct sr_probe *probe;
	189	char *tc;
	190	int type;
	191
	192	/* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
	193	devc = sdi->priv;
	194
	195	for (l = sdi->probes; l; l = l->next) {
	196	probe = (struct sr_probe *)l->data;
	197	if (probe->enabled == FALSE)
	198	continue;
	199
	200	if ((tc = probe->trigger)) {
	201	switch (*tc) {
	202	case '1':
	203	type = TRIGGER_HIGH;
	204	break;
	205	case '0':
	206	type = TRIGGER_LOW;
	207	break;
	208	#if 0
	209	case 'r':
	210	type = TRIGGER_POSEDGE;
	211	break;
	212	case 'f':
	213	type = TRIGGER_NEGEDGE;
	214	break;
	215	case 'c':
	216	type = TRIGGER_ANYEDGE;
	217	break;
	218	#endif
	219	default:
	220	return SR_ERR;
	221	}
	222	analyzer_add_trigger(probe->index, type);
	223	devc->trigger = 1;
	224	}
	225	}
	226
	227	return SR_OK;
	228	}
	229
	230	static int clear_instances(void)
	231	{
	232	GSList *l;
	233	struct sr_dev_inst *sdi;
	234	struct drv_context *drvc;
	235	struct dev_context *devc;
	236
	237	drvc = di->priv;
	238	for (l = drvc->instances; l; l = l->next) {
	239	sdi = l->data;
	240	if (!(devc = sdi->priv)) {
	241	/* Log error, but continue cleaning up the rest. */
	242	sr_err("%s: sdi->priv was NULL, continuing", __func__);
	243	continue;
	244	}
	245	sr_usb_dev_inst_free(devc->usb);
	246	/* Properly close all devices... */
	247	hw_dev_close(sdi);
	248	/* ...and free all their memory. */
	249	sr_dev_inst_free(sdi);
	250	}
	251	g_slist_free(drvc->instances);
	252	drvc->instances = NULL;
	253
	254	return SR_OK;
	255	}
	256
	257	static int hw_init(struct sr_context *sr_ctx)
	258	{
	259	return std_hw_init(sr_ctx, di, "zeroplus: ");
	260	}
	261
	262	static GSList hw_scan(GSList options)
	263	{
	264	struct sr_dev_inst *sdi;
	265	struct sr_probe *probe;
	266	struct drv_context *drvc;
	267	struct dev_context *devc;
	268	const struct zp_model *prof;
	269	struct libusb_device_descriptor des;
	270	libusb_device **devlist;
	271	GSList *devices;
	272	int ret, devcnt, i, j;
	273
	274	(void)options;
	275
	276	drvc = di->priv;
	277
	278	devices = NULL;
	279
	280	clear_instances();
	281
	282	/* Find all ZEROPLUS analyzers and add them to device list. */
	283	devcnt = 0;
	284	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */
	285
	286	for (i = 0; devlist[i]; i++) {
	287	ret = libusb_get_device_descriptor(devlist[i], &des);
	288	if (ret != 0) {
	289	sr_err("Failed to get device descriptor: %s.",
	290	libusb_error_name(ret));
	291	continue;
	292	}
	293
	294	prof = NULL;
	295	for (j = 0; j < zeroplus_models[j].vid; j++) {
	296	if (des.idVendor == zeroplus_models[j].vid &&
	297	des.idProduct == zeroplus_models[j].pid) {
	298	prof = &zeroplus_models[j];
	299	}
	300	}
	301	/* Skip if the device was not found. */
	302	if (!prof)
	303	continue;
	304	sr_info("Found ZEROPLUS %s.", prof->model_name);
	305
	306	/* Register the device with libsigrok. */
	307	if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
	308	VENDOR_NAME, prof->model_name, NULL))) {
	309	sr_err("%s: sr_dev_inst_new failed", __func__);
	310	return NULL;
	311	}
	312	sdi->driver = di;
	313
	314	/* Allocate memory for our private driver context. */
	315	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	316	sr_err("Device context malloc failed.");
	317	return NULL;
	318	}
	319
	320	sdi->priv = devc;
	321	devc->prof = prof;
	322	devc->num_channels = prof->channels;
	323	#ifdef ZP_EXPERIMENTAL
	324	devc->max_memory_size = 128 * 1024;
	325	devc->max_samplerate = 200;
	326	#else
	327	devc->max_memory_size = prof->sample_depth * 1024;
	328	devc->max_samplerate = prof->max_sampling_freq;
	329	#endif
	330	devc->max_samplerate *= SR_MHZ(1);
	331	devc->memory_size = MEMORY_SIZE_8K;
	332	// memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);
	333
	334	/* Fill in probelist according to this device's profile. */
	335	for (j = 0; j < devc->num_channels; j++) {
	336	if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
	337	probe_names[j])))
	338	return NULL;
	339	sdi->probes = g_slist_append(sdi->probes, probe);
	340	}
	341
	342	devices = g_slist_append(devices, sdi);
	343	drvc->instances = g_slist_append(drvc->instances, sdi);
	344	devc->usb = sr_usb_dev_inst_new(
	345	libusb_get_bus_number(devlist[i]),
	346	libusb_get_device_address(devlist[i]), NULL);
	347	devcnt++;
	348
	349	}
	350	libusb_free_device_list(devlist, 1);
	351
	352	return devices;
	353	}
	354
	355	static GSList *hw_dev_list(void)
	356	{
	357	return ((struct drv_context *)(di->priv))->instances;
	358	}
	359
	360	static int hw_dev_open(struct sr_dev_inst *sdi)
	361	{
	362	struct dev_context *devc;
	363	struct drv_context *drvc;
	364	libusb_device *devlist, dev;
	365	struct libusb_device_descriptor des;
	366	int device_count, ret, i;
	367
	368	drvc = di->priv;
	369
	370	if (!(devc = sdi->priv)) {
	371	sr_err("%s: sdi->priv was NULL", __func__);
	372	return SR_ERR_ARG;
	373	}
	374
	375	device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx,
	376	&devlist);
	377	if (device_count < 0) {
	378	sr_err("Failed to retrieve device list.");
	379	return SR_ERR;
	380	}
	381
	382	dev = NULL;
	383	for (i = 0; i < device_count; i++) {
	384	if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
	385	sr_err("Failed to get device descriptor: %s.",
	386	libusb_error_name(ret));
	387	continue;
	388	}
	389	if (libusb_get_bus_number(devlist[i]) == devc->usb->bus
	390	&& libusb_get_device_address(devlist[i]) == devc->usb->address) {
	391	dev = devlist[i];
	392	break;
	393	}
	394	}
	395	if (!dev) {
	396	sr_err("Device on bus %d address %d disappeared!",
	397	devc->usb->bus, devc->usb->address);
	398	return SR_ERR;
	399	}
	400
	401	if (!(ret = libusb_open(dev, &(devc->usb->devhdl)))) {
	402	sdi->status = SR_ST_ACTIVE;
	403	sr_info("Opened device %d on %d.%d interface %d.",
	404	sdi->index, devc->usb->bus,
	405	devc->usb->address, USB_INTERFACE);
	406	} else {
	407	sr_err("Failed to open device: %s.", libusb_error_name(ret));
	408	return SR_ERR;
	409	}
	410
	411	ret = libusb_set_configuration(devc->usb->devhdl, USB_CONFIGURATION);
	412	if (ret < 0) {
	413	sr_err("Unable to set USB configuration %d: %s.",
	414	USB_CONFIGURATION, libusb_error_name(ret));
	415	return SR_ERR;
	416	}
	417
	418	ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
	419	if (ret != 0) {
	420	sr_err("Unable to claim interface: %s.",
	421	libusb_error_name(ret));
	422	return SR_ERR;
	423	}
	424
	425	/* Set default configuration after power on. */
	426	if (analyzer_read_status(devc->usb->devhdl) == 0)
	427	analyzer_configure(devc->usb->devhdl);
	428
	429	analyzer_reset(devc->usb->devhdl);
	430	analyzer_initialize(devc->usb->devhdl);
	431
	432	//analyzer_set_memory_size(MEMORY_SIZE_512K);
	433	// analyzer_set_freq(g_freq, g_freq_scale);
	434	analyzer_set_trigger_count(1);
	435	// analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
	436	// * get_memory_size(g_memory_size)) / 100) >> 2);
	437
	438	#if 0
	439	if (g_double_mode == 1)
	440	analyzer_set_compression(COMPRESSION_DOUBLE);
	441	else if (g_compression == 1)
	442	analyzer_set_compression(COMPRESSION_ENABLE);
	443	else
	444	#endif
	445	analyzer_set_compression(COMPRESSION_NONE);
	446
	447	if (devc->cur_samplerate == 0) {
	448	/* Samplerate hasn't been set. Default to 1MHz. */
	449	analyzer_set_freq(1, FREQ_SCALE_MHZ);
	450	devc->cur_samplerate = SR_MHZ(1);
	451	}
	452
	453	return SR_OK;
	454	}
	455
	456	static int hw_dev_close(struct sr_dev_inst *sdi)
	457	{
	458	struct dev_context *devc;
	459
	460	devc = sdi->priv;
	461
	462	if (!devc->usb->devhdl)
	463	return SR_ERR;
	464
	465	sr_info("Closing device %d on %d.%d interface %d.", sdi->index,
	466	devc->usb->bus, devc->usb->address, USB_INTERFACE);
	467	libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
	468	libusb_reset_device(devc->usb->devhdl);
	469	libusb_close(devc->usb->devhdl);
	470	devc->usb->devhdl = NULL;
	471	sdi->status = SR_ST_INACTIVE;
	472
	473	return SR_OK;
	474	}
	475
	476	static int hw_cleanup(void)
	477	{
	478	struct drv_context *drvc;
	479
	480	if (!(drvc = di->priv))
	481	return SR_OK;
	482
	483	clear_instances();
	484
	485	return SR_OK;
	486	}
	487
	488	static int config_get(int id, const void *data, const struct sr_dev_inst sdi)
	489	{
	490	struct dev_context *devc;
	491
	492	switch (id) {
	493	case SR_CONF_SAMPLERATE:
	494	if (sdi) {
	495	devc = sdi->priv;
	496	*data = &devc->cur_samplerate;
	497	sr_spew("Returning samplerate: %" PRIu64 "Hz.",
	498	devc->cur_samplerate);
	499	} else
	500	return SR_ERR;
	501	break;
	502	default:
	503	return SR_ERR_ARG;
	504	}
	505
	506	return SR_OK;
	507	}
	508
	509	static int config_set(int id, const void value, const struct sr_dev_inst sdi)
	510	{
	511	struct dev_context *devc;
	512
	513	if (!sdi) {
	514	sr_err("%s: sdi was NULL", __func__);
	515	return SR_ERR_ARG;
	516	}
	517
	518	if (!(devc = sdi->priv)) {
	519	sr_err("%s: sdi->priv was NULL", __func__);
	520	return SR_ERR_ARG;
	521	}
	522
	523	switch (id) {
	524	case SR_CONF_SAMPLERATE:
	525	return zp_set_samplerate(devc, (const uint64_t )value);
	526	case SR_CONF_LIMIT_SAMPLES:
	527	return set_limit_samples(devc, (const uint64_t )value);
	528	case SR_CONF_CAPTURE_RATIO:
	529	return set_capture_ratio(devc, (const uint64_t )value);
	530	default:
	531	return SR_ERR;
	532	}
	533
	534	return SR_OK;
	535	}
	536
	537	static int config_list(int key, const void *data, const struct sr_dev_inst sdi)
	538	{
	539	struct dev_context *devc;
	540
	541	switch (key) {
	542	case SR_CONF_DEVICE_OPTIONS:
	543	*data = hwcaps;
	544	break;
	545	case SR_CONF_SAMPLERATE:
	546	devc = sdi->priv;
	547	if (devc->prof->max_sampling_freq == 100) {
	548	*data = &samplerates_100;
	549	} else if (devc->prof->max_sampling_freq == 200) {
	550	*data = &samplerates_200;
	551	} else {
	552	sr_err("Internal error: Unknown max. samplerate: %d.",
	553	devc->prof->max_sampling_freq);
	554	return SR_ERR_ARG;
	555	}
	556	break;
	557	case SR_CONF_TRIGGER_TYPE:
	558	*data = TRIGGER_TYPE;
	559	break;
	560	default:
	561	return SR_ERR_ARG;
	562	}
	563
	564	return SR_OK;
	565	}
	566
	567	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
	568	void *cb_data)
	569	{
	570	struct sr_datafeed_packet packet;
	571	struct sr_datafeed_logic logic;
	572	//uint64_t samples_read;
	573	int res;
	574	unsigned int packet_num, n;
	575	unsigned char *buf;
	576	struct dev_context *devc;
	577
	578	if (!(devc = sdi->priv)) {
	579	sr_err("%s: sdi->priv was NULL", __func__);
	580	return SR_ERR_ARG;
	581	}
	582
	583	if (configure_probes(sdi) != SR_OK) {
	584	sr_err("Failed to configure probes.");
	585	return SR_ERR;
	586	}
	587
	588	set_triggerbar(devc);
	589
	590	/* Push configured settings to device. */
	591	analyzer_configure(devc->usb->devhdl);
	592
	593	analyzer_start(devc->usb->devhdl);
	594	sr_info("Waiting for data.");
	595	analyzer_wait_data(devc->usb->devhdl);
	596
	597	sr_info("Stop address = 0x%x.",
	598	analyzer_get_stop_address(devc->usb->devhdl));
	599	sr_info("Now address = 0x%x.",
	600	analyzer_get_now_address(devc->usb->devhdl));
	601	sr_info("Trigger address = 0x%x.",
	602	analyzer_get_trigger_address(devc->usb->devhdl));
	603
	604	/* Send header packet to the session bus. */
	605	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
	606
	607	if (!(buf = g_try_malloc(PACKET_SIZE))) {
	608	sr_err("Packet buffer malloc failed.");
	609	return SR_ERR_MALLOC;
	610	}
	611
	612	//samples_read = 0;
	613	analyzer_read_start(devc->usb->devhdl);
	614	/* Send the incoming transfer to the session bus. */
	615	n = get_memory_size(devc->memory_size);
	616	if (devc->max_memory_size * 4 < n)
	617	n = devc->max_memory_size * 4;
	618	for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
	619	res = analyzer_read_data(devc->usb->devhdl, buf, PACKET_SIZE);
	620	sr_info("Tried to read %d bytes, actually read %d bytes.",
	621	PACKET_SIZE, res);
	622
	623	packet.type = SR_DF_LOGIC;
	624	packet.payload = &logic;
	625	logic.length = PACKET_SIZE;
	626	logic.unitsize = 4;
	627	logic.data = buf;
	628	sr_session_send(cb_data, &packet);
	629	//samples_read += res / 4;
	630	}
	631	analyzer_read_stop(devc->usb->devhdl);
	632	g_free(buf);
	633
	634	packet.type = SR_DF_END;
	635	sr_session_send(cb_data, &packet);
	636
	637	return SR_OK;
	638	}
	639
	640	/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
	641	static int hw_dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	642	{
	643	struct sr_datafeed_packet packet;
	644	struct dev_context *devc;
	645
	646	packet.type = SR_DF_END;
	647	sr_session_send(cb_data, &packet);
	648
	649	if (!(devc = sdi->priv)) {
	650	sr_err("%s: sdi->priv was NULL", __func__);
	651	return SR_ERR_BUG;
	652	}
	653
	654	analyzer_reset(devc->usb->devhdl);
	655	/* TODO: Need to cancel and free any queued up transfers. */
	656
	657	return SR_OK;
	658	}
	659
	660	SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
	661	.name = "zeroplus-logic-cube",
	662	.longname = "ZEROPLUS Logic Cube LAP-C series",
	663	.api_version = 1,
	664	.init = hw_init,
	665	.cleanup = hw_cleanup,
	666	.scan = hw_scan,
	667	.dev_list = hw_dev_list,
	668	.dev_clear = hw_cleanup,
	669	.config_get = config_get,
	670	.config_set = config_set,
	671	.config_list = config_list,
	672	.dev_open = hw_dev_open,
	673	.dev_close = hw_dev_close,
	674	.dev_acquisition_start = hw_dev_acquisition_start,
	675	.dev_acquisition_stop = hw_dev_acquisition_stop,
	676	.priv = NULL,
	677	};