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

/*
 * This file is part of the sigrok project.
 *
 * Copyright (C) 2010 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 "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <inttypes.h>
#include <glib.h>
#include <libusb.h>
#include <sigrok.h>
#include <sigrok-internal.h>
#include "analyzer.h"

#define USB_VENDOR			0x0c12
#define USB_VENDOR_NAME			"Zeroplus"
#define USB_MODEL_NAME			"Logic Cube"
#define USB_MODEL_VERSION		""

#define USB_INTERFACE			0
#define USB_CONFIGURATION		1
#define NUM_TRIGGER_STAGES		4
#define TRIGGER_TYPES			"01"

#define PACKET_SIZE			2048	/* ?? */

typedef struct {
	unsigned short pid;
	char model_name[64];
	unsigned int channels;
	unsigned int sample_depth;	/* In Ksamples/channel */
	unsigned int max_sampling_freq;
} model_t;

/*
 * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the
 * same 128K sample depth.
 */
static model_t zeroplus_models[] = {
	{0x7009, "LAP-C(16064)",  16, 64,   100},
	{0x700A, "LAP-C(16128)",  16, 128,  200},
	{0x700B, "LAP-C(32128)",  32, 128,  200},
	{0x700C, "LAP-C(321000)", 32, 1024, 200},
	{0x700D, "LAP-C(322000)", 32, 2048, 200},
	{0x700E, "LAP-C(16032)",  16, 32,   100},
	{0x7016, "LAP-C(162000)", 16, 2048, 200},
};

static int capabilities[] = {
	SR_HWCAP_LOGIC_ANALYZER,
	SR_HWCAP_SAMPLERATE,
	SR_HWCAP_PROBECONFIG,
	SR_HWCAP_CAPTURE_RATIO,

	/* These are really implemented in the driver, not the hardware. */
	SR_HWCAP_LIMIT_SAMPLES,
	0,
};

/* List of struct sr_device_instance, maintained by opendev()/closedev(). */
static GSList *device_instances = NULL;

static libusb_context *usb_context = NULL;

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

/*
 * TODO: We shouldn't support 150MHz and 200MHz on devices that don't go up
 * that high.
 */
static uint64_t supported_samplerates[] = {
	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 struct sr_samplerates samplerates = {
	SR_HZ(0),
	SR_HZ(0),
	SR_HZ(0),
	supported_samplerates,
};

/* TODO: All of these should go in a device-specific struct. */
static uint64_t cur_samplerate = 0;
static uint64_t limit_samples = 0;
static int num_channels = 32; /* TODO: This isn't initialized before it's needed :( */
static uint64_t memory_size = 0;
static uint8_t probe_mask = 0;
static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 };
static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 };

// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 };

static int hw_set_configuration(int device_index, int capability, void *value);

static unsigned int get_memory_size(int type)
{
	if (type == MEMORY_SIZE_8K)
		return 8 * 1024;
	else if (type == MEMORY_SIZE_64K)
		return 64 * 1024;
	else if (type == MEMORY_SIZE_128K)
		return 128 * 1024;
	else if (type == MEMORY_SIZE_512K)
		return 512 * 1024;
	else
		return 0;
}

static int opendev4(struct sr_device_instance **sdi, libusb_device *dev,
		    struct libusb_device_descriptor *des)
{
	unsigned int i;
	int err;

	if ((err = libusb_get_device_descriptor(dev, des))) {
		sr_warn("failed to get device descriptor: %d", err);
		return -1;
	}

	if (des->idVendor != USB_VENDOR)
		return 0;

	if (libusb_get_bus_number(dev) == (*sdi)->usb->bus
	    && libusb_get_device_address(dev) == (*sdi)->usb->address) {

		for (i = 0; i < ARRAY_SIZE(zeroplus_models); i++) {
			if (!(des->idProduct == zeroplus_models[i].pid))
				continue;

			sr_info("Found PID=%04X (%s)", des->idProduct,
				zeroplus_models[i].model_name);
			num_channels = zeroplus_models[i].channels;
			memory_size = zeroplus_models[i].sample_depth * 1024;
			break;
		}

		if (num_channels == 0) {
			sr_warn("Unknown ZeroPlus device %04X", des->idProduct);
			return -2;
		}

		/* Found it. */
		if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) {
			(*sdi)->status = SR_ST_ACTIVE;
			sr_info("opened device %d on %d.%d interface %d",
				(*sdi)->index, (*sdi)->usb->bus,
				(*sdi)->usb->address, USB_INTERFACE);
		} else {
			sr_warn("failed to open device: %d", err);
			*sdi = NULL;
		}
	}

	return 0;
}

static struct sr_device_instance *zp_open_device(int device_index)
{
	struct sr_device_instance *sdi;
	libusb_device **devlist;
	struct libusb_device_descriptor des;
	int err, i;

	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
		return NULL;

	libusb_get_device_list(usb_context, &devlist);
	if (sdi->status == SR_ST_INACTIVE) {
		/* Find the device by vendor, product, bus and address. */
		libusb_get_device_list(usb_context, &devlist);
		for (i = 0; devlist[i]; i++) {
			/* TODO: Error handling. */
			err = opendev4(&sdi, devlist[i], &des);
		}
	} else {
		/* Status must be SR_ST_ACTIVE, i.e. already in use... */
		sdi = NULL;
	}
	libusb_free_device_list(devlist, 1);

	if (sdi && sdi->status != SR_ST_ACTIVE)
		sdi = NULL;

	return sdi;
}

static void close_device(struct sr_device_instance *sdi)
{
	if (!sdi->usb->devhdl)
		return;

	sr_info("closing device %d on %d.%d interface %d", sdi->index,
		sdi->usb->bus, sdi->usb->address, USB_INTERFACE);
	libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE);
	libusb_close(sdi->usb->devhdl);
	sdi->usb->devhdl = NULL;
	sdi->status = SR_ST_INACTIVE;
}

static int configure_probes(GSList *probes)
{
	struct sr_probe *probe;
	GSList *l;
	int probe_bit, stage, i;
	char *tc;

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

	stage = -1;
	for (l = probes; l; l = l->next) {
		probe = (struct sr_probe *)l->data;
		if (probe->enabled == FALSE)
			continue;
		probe_bit = 1 << (probe->index - 1);
		probe_mask |= probe_bit;

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

	return SR_OK;
}

/*
 * API callbacks
 */

static int hw_init(const char *deviceinfo)
{
	struct sr_device_instance *sdi;
	struct libusb_device_descriptor des;
	libusb_device **devlist;
	int err, devcnt, i;

	/* Avoid compiler warnings. */
	deviceinfo = deviceinfo;

	if (libusb_init(&usb_context) != 0) {
		sr_warn("Failed to initialize USB.");
		return 0;
	}

	/* Find all ZeroPlus analyzers and add them to device list. */
	devcnt = 0;
	libusb_get_device_list(usb_context, &devlist);

	for (i = 0; devlist[i]; i++) {
		err = libusb_get_device_descriptor(devlist[i], &des);
		if (err != 0) {
			sr_warn("failed to get device descriptor: %d", err);
			continue;
		}

		if (des.idVendor == USB_VENDOR) {
			/*
			 * Definitely a Zeroplus.
			 * TODO: Any way to detect specific model/version in
			 * the zeroplus range?
			 */
			sdi = sr_device_instance_new(devcnt,
					SR_ST_INACTIVE, USB_VENDOR_NAME,
					USB_MODEL_NAME, USB_MODEL_VERSION);
			if (!sdi)
				return 0;
			device_instances =
			    g_slist_append(device_instances, sdi);
			sdi->usb = sr_usb_device_instance_new(
				libusb_get_bus_number(devlist[i]),
				libusb_get_device_address(devlist[i]), NULL);
			devcnt++;
		}
	}
	libusb_free_device_list(devlist, 1);

	return devcnt;
}

static int hw_opendev(int device_index)
{
	struct sr_device_instance *sdi;
	int err;

	if (!(sdi = zp_open_device(device_index))) {
		sr_warn("unable to open device");
		return SR_ERR;
	}

	err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
	if (err != 0) {
		sr_warn("Unable to claim interface: %d", err);
		return SR_ERR;
	}
	analyzer_reset(sdi->usb->devhdl);
	analyzer_initialize(sdi->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);
	analyzer_set_ramsize_trigger_address(
		(100 * get_memory_size(MEMORY_SIZE_512K) / 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 (cur_samplerate == 0) {
		/* Samplerate hasn't been set. Default to the slowest one. */
		if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE,
		     &samplerates.low) == SR_ERR)
			return SR_ERR;
	}

	return SR_OK;
}

static void hw_closedev(int device_index)
{
	struct sr_device_instance *sdi;

	if ((sdi = sr_get_device_instance(device_instances, device_index)))
		close_device(sdi);
}

static void hw_cleanup(void)
{
	GSList *l;

	/* Properly close all devices... */
	for (l = device_instances; l; l = l->next)
		close_device((struct sr_device_instance *)l->data);

	/* ...and free all their memory. */
	for (l = device_instances; l; l = l->next)
		g_free(l->data);
	g_slist_free(device_instances);
	device_instances = NULL;

	if (usb_context)
		libusb_exit(usb_context);
	usb_context = NULL;
}

static void *hw_get_device_info(int device_index, int device_info_id)
{
	struct sr_device_instance *sdi;
	void *info = NULL;

	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
		return NULL;

	switch (device_info_id) {
	case SR_DI_INSTANCE:
		info = sdi;
		break;
	case SR_DI_NUM_PROBES:
		info = GINT_TO_POINTER(num_channels);
		break;
	case SR_DI_SAMPLERATES:
		info = &samplerates;
		break;
	case SR_DI_TRIGGER_TYPES:
		info = TRIGGER_TYPES;
		break;
	case SR_DI_CUR_SAMPLERATE:
		info = &cur_samplerate;
		break;
	}

	return info;
}

static int hw_get_status(int device_index)
{
	struct sr_device_instance *sdi;

	sdi = sr_get_device_instance(device_instances, device_index);
	if (sdi)
		return sdi->status;
	else
		return SR_ST_NOT_FOUND;
}

static int *hw_get_capabilities(void)
{
	return capabilities;
}

/* TODO: This will set the same samplerate for all devices. */
static int set_configuration_samplerate(uint64_t samplerate)
{
	sr_info("%s(%" PRIu64 ")", __FUNCTION__, 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);

	cur_samplerate = samplerate;

	return SR_OK;
}

static int hw_set_configuration(int device_index, int capability, void *value)
{
	struct sr_device_instance *sdi;
	uint64_t *tmp_u64;

	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
		return SR_ERR;

	switch (capability) {
	case SR_HWCAP_SAMPLERATE:
		tmp_u64 = value;
		return set_configuration_samplerate(*tmp_u64);
	case SR_HWCAP_PROBECONFIG:
		return configure_probes((GSList *) value);
	case SR_HWCAP_LIMIT_SAMPLES:
		tmp_u64 = value;
		limit_samples = *tmp_u64;
		return SR_OK;
	default:
		return SR_ERR;
	}
}

static int hw_start_acquisition(int device_index, gpointer session_device_id)
{
	struct sr_device_instance *sdi;
	struct sr_datafeed_packet packet;
	struct sr_datafeed_header header;
	int res;
	unsigned int packet_num;
	unsigned char *buf;

	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
		return SR_ERR;

	/* push configured settings to device */
	analyzer_configure(sdi->usb->devhdl);

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

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

	packet.type = SR_DF_HEADER;
	packet.length = sizeof(struct sr_datafeed_header);
	packet.payload = (unsigned char *)&header;
	header.feed_version = 1;
	gettimeofday(&header.starttime, NULL);
	header.samplerate = cur_samplerate;
	header.protocol_id = SR_PROTO_RAW;
	header.num_logic_probes = num_channels;
	header.num_analog_probes = 0;
	sr_session_bus(session_device_id, &packet);

	if (!(buf = g_try_malloc(PACKET_SIZE))) {
		sr_err("zeroplus: %s: buf malloc failed", __func__);
		return SR_ERR_MALLOC;
	}

	analyzer_read_start(sdi->usb->devhdl);
	/* Send the incoming transfer to the session bus. */
	for (packet_num = 0; packet_num < (memory_size * 4 / PACKET_SIZE);
	     packet_num++) {
		res = analyzer_read_data(sdi->usb->devhdl, buf, PACKET_SIZE);
#if 0
		sr_info("Tried to read %llx bytes, actually read %x bytes",
			PACKET_SIZE, res);
#endif

		packet.type = SR_DF_LOGIC;
		packet.length = PACKET_SIZE;
		packet.unitsize = 4;
		packet.payload = buf;
		sr_session_bus(session_device_id, &packet);
	}
	analyzer_read_stop(sdi->usb->devhdl);
	g_free(buf);

	packet.type = SR_DF_END;
	sr_session_bus(session_device_id, &packet);

	return SR_OK;
}

/* This stops acquisition on ALL devices, ignoring device_index. */
static void hw_stop_acquisition(int device_index, gpointer session_device_id)
{
	struct sr_datafeed_packet packet;
	struct sr_device_instance *sdi;

	packet.type = SR_DF_END;
	sr_session_bus(session_device_id, &packet);

	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
		return; /* TODO: Cry? */

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

struct sr_device_plugin zeroplus_logic_cube_plugin_info = {
	.name = "zeroplus-logic-cube",
	.longname = "Zeroplus Logic Cube LAP-C series",
	.api_version = 1,
	.init = hw_init,
	.cleanup = hw_cleanup,
	.opendev = hw_opendev,
	.closedev = hw_closedev,
	.get_device_info = hw_get_device_info,
	.get_status = hw_get_status,
	.get_capabilities = hw_get_capabilities,
	.set_configuration = hw_set_configuration,
	.start_acquisition = hw_start_acquisition,
	.stop_acquisition = hw_stop_acquisition,
};
Commit	Line	Data
a1bb33af UH	1	/*
	2	* This file is part of the sigrok project.
	3	*
	4	* Copyright (C) 2010 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
22b02383	20	#include "config.h"
a1bb33af UH	21	#include <stdio.h>
	22	#include <stdlib.h>
	23	#include <sys/time.h>
	24	#include <inttypes.h>
	25	#include <glib.h>
	26	#include <libusb.h>
fed16f06	27	#include <sigrok.h>
4cea9eb2	28	#include <sigrok-internal.h>
a1bb33af UH	29	#include "analyzer.h"
a1bb33af UH	30
fed16f06 UH	31	#define USB_VENDOR 0x0c12
fed16f06 UH	32	#define USB_VENDOR_NAME "Zeroplus"
a1bb33af UH	33	#define USB_MODEL_NAME "Logic Cube"
	34	#define USB_MODEL_VERSION ""
	35
	36	#define USB_INTERFACE 0
	37	#define USB_CONFIGURATION 1
	38	#define NUM_TRIGGER_STAGES 4
	39	#define TRIGGER_TYPES "01"
	40
fed16f06	41	#define PACKET_SIZE 2048 /* ?? */
a1bb33af UH	42
	43	typedef struct {
	44	unsigned short pid;
	45	char model_name[64];
	46	unsigned int channels;
fed16f06	47	unsigned int sample_depth; /* In Ksamples/channel */
a1bb33af UH	48	unsigned int max_sampling_freq;
	49	} model_t;
	50
fed16f06 UH	51	/*
	52	* Note -- 16032, 16064 and 16128 usually -- but not always -- have the
	53	* same 128K sample depth.
	54	*/
29cbfeaf	55	static model_t zeroplus_models[] = {
a1bb33af UH	56	{0x7009, "LAP-C(16064)", 16, 64, 100},
	57	{0x700A, "LAP-C(16128)", 16, 128, 200},
	58	{0x700B, "LAP-C(32128)", 32, 128, 200},
	59	{0x700C, "LAP-C(321000)", 32, 1024, 200},
	60	{0x700D, "LAP-C(322000)", 32, 2048, 200},
	61	{0x700E, "LAP-C(16032)", 16, 32, 100},
	62	{0x7016, "LAP-C(162000)", 16, 2048, 200},
	63	};
	64
	65	static int capabilities[] = {
5a2326a7 UH	66	SR_HWCAP_LOGIC_ANALYZER,
	67	SR_HWCAP_SAMPLERATE,
	68	SR_HWCAP_PROBECONFIG,
	69	SR_HWCAP_CAPTURE_RATIO,
a1bb33af	70
fed16f06	71	/* These are really implemented in the driver, not the hardware. */
5a2326a7	72	SR_HWCAP_LIMIT_SAMPLES,
fed16f06	73	0,
a1bb33af UH	74	};
a1bb33af UH	75
a00ba012	76	/* List of struct sr_device_instance, maintained by opendev()/closedev(). */
a1bb33af UH	77	static GSList *device_instances = NULL;
	78
	79	static libusb_context *usb_context = NULL;
	80
fed16f06 UH	81	/*
	82	* The hardware supports more samplerates than these, but these are the
	83	* options hardcoded into the vendor's Windows GUI.
	84	*/
a1bb33af	85
fed16f06 UH	86	/*
	87	* TODO: We shouldn't support 150MHz and 200MHz on devices that don't go up
	88	* that high.
	89	*/
a1bb33af	90	static uint64_t supported_samplerates[] = {
c9140419 UH	91	SR_HZ(100),
c9140419 UH	92	SR_HZ(500),
59df0c77 UH	93	SR_KHZ(1),
	94	SR_KHZ(5),
	95	SR_KHZ(25),
	96	SR_KHZ(50),
	97	SR_KHZ(100),
	98	SR_KHZ(200),
	99	SR_KHZ(400),
	100	SR_KHZ(800),
	101	SR_MHZ(1),
	102	SR_MHZ(10),
	103	SR_MHZ(25),
	104	SR_MHZ(50),
	105	SR_MHZ(80),
	106	SR_MHZ(100),
	107	SR_MHZ(150),
	108	SR_MHZ(200),
fed16f06	109	0,
a1bb33af UH	110	};
a1bb33af UH	111
60679b18	112	static struct sr_samplerates samplerates = {
c9140419 UH	113	SR_HZ(0),
	114	SR_HZ(0),
	115	SR_HZ(0),
fed16f06	116	supported_samplerates,
a1bb33af UH	117	};
a1bb33af UH	118
fed16f06	119	/* TODO: All of these should go in a device-specific struct. */
a1bb33af UH	120	static uint64_t cur_samplerate = 0;
a1bb33af UH	121	static uint64_t limit_samples = 0;
29cbfeaf UH	122	static int num_channels = 32; /* TODO: This isn't initialized before it's needed :( */
29cbfeaf UH	123	static uint64_t memory_size = 0;
86c5e279	124	static uint8_t probe_mask = 0;
fed16f06 UH	125	static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 };
fed16f06 UH	126	static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 };
a1bb33af	127
fed16f06	128	// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 };
a1bb33af UH	129
	130	static int hw_set_configuration(int device_index, int capability, void *value);
	131
	132	static unsigned int get_memory_size(int type)
	133	{
fed16f06 UH	134	if (type == MEMORY_SIZE_8K)
	135	return 8 * 1024;
	136	else if (type == MEMORY_SIZE_64K)
	137	return 64 * 1024;
	138	else if (type == MEMORY_SIZE_128K)
	139	return 128 * 1024;
	140	else if (type == MEMORY_SIZE_512K)
	141	return 512 * 1024;
	142	else
	143	return 0;
a1bb33af UH	144	}
a1bb33af UH	145
a00ba012	146	static int opendev4(struct sr_device_instance *sdi, libusb_device dev,
408e7199 UH	147	struct libusb_device_descriptor *des)
408e7199 UH	148	{
9a498834 UH	149	unsigned int i;
9a498834 UH	150	int err;
408e7199 UH	151
408e7199 UH	152	if ((err = libusb_get_device_descriptor(dev, des))) {
b08024a8	153	sr_warn("failed to get device descriptor: %d", err);
408e7199 UH	154	return -1;
	155	}
	156
9a498834	157	if (des->idVendor != USB_VENDOR)
408e7199 UH	158	return 0;
	159
	160	if (libusb_get_bus_number(dev) == (*sdi)->usb->bus
	161	&& libusb_get_device_address(dev) == (*sdi)->usb->address) {
	162
9a498834 UH	163	for (i = 0; i < ARRAY_SIZE(zeroplus_models); i++) {
9a498834 UH	164	if (!(des->idProduct == zeroplus_models[i].pid))
408e7199 UH	165	continue;
408e7199 UH	166
b08024a8 UH	167	sr_info("Found PID=%04X (%s)", des->idProduct,
b08024a8 UH	168	zeroplus_models[i].model_name);
9a498834 UH	169	num_channels = zeroplus_models[i].channels;
9a498834 UH	170	memory_size = zeroplus_models[i].sample_depth * 1024;
408e7199 UH	171	break;
	172	}
	173
	174	if (num_channels == 0) {
b08024a8	175	sr_warn("Unknown ZeroPlus device %04X", des->idProduct);
408e7199 UH	176	return -2;
	177	}
	178
	179	/* Found it. */
	180	if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) {
5a2326a7	181	(*sdi)->status = SR_ST_ACTIVE;
b08024a8 UH	182	sr_info("opened device %d on %d.%d interface %d",
	183	(sdi)->index, (sdi)->usb->bus,
	184	(*sdi)->usb->address, USB_INTERFACE);
408e7199	185	} else {
b08024a8	186	sr_warn("failed to open device: %d", err);
408e7199 UH	187	*sdi = NULL;
	188	}
	189	}
	190
	191	return 0;
	192	}
	193
29cbfeaf	194	static struct sr_device_instance *zp_open_device(int device_index)
a1bb33af	195	{
a00ba012	196	struct sr_device_instance *sdi;
a1bb33af UH	197	libusb_device **devlist;
a1bb33af UH	198	struct libusb_device_descriptor des;
afc8e4de	199	int err, i;
a1bb33af	200
d32d961d	201	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
a1bb33af UH	202	return NULL;
	203
	204	libusb_get_device_list(usb_context, &devlist);
5a2326a7	205	if (sdi->status == SR_ST_INACTIVE) {
fed16f06	206	/* Find the device by vendor, product, bus and address. */
a1bb33af	207	libusb_get_device_list(usb_context, &devlist);
fed16f06	208	for (i = 0; devlist[i]; i++) {
408e7199	209	/* TODO: Error handling. */
9a5c6dcf	210	err = opendev4(&sdi, devlist[i], &des);
a1bb33af	211	}
fed16f06	212	} else {
5a2326a7	213	/* Status must be SR_ST_ACTIVE, i.e. already in use... */
a1bb33af UH	214	sdi = NULL;
	215	}
	216	libusb_free_device_list(devlist, 1);
	217
5a2326a7	218	if (sdi && sdi->status != SR_ST_ACTIVE)
a1bb33af UH	219	sdi = NULL;
	220
	221	return sdi;
	222	}
	223
a00ba012	224	static void close_device(struct sr_device_instance *sdi)
a1bb33af	225	{
408e7199 UH	226	if (!sdi->usb->devhdl)
	227	return;
	228
b08024a8 UH	229	sr_info("closing device %d on %d.%d interface %d", sdi->index,
b08024a8 UH	230	sdi->usb->bus, sdi->usb->address, USB_INTERFACE);
408e7199 UH	231	libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE);
	232	libusb_close(sdi->usb->devhdl);
	233	sdi->usb->devhdl = NULL;
5a2326a7	234	sdi->status = SR_ST_INACTIVE;
a1bb33af UH	235	}
a1bb33af UH	236
a1bb33af UH	237	static int configure_probes(GSList *probes)
a1bb33af UH	238	{
1afe8989	239	struct sr_probe *probe;
a1bb33af UH	240	GSList *l;
	241	int probe_bit, stage, i;
	242	char *tc;
	243
	244	probe_mask = 0;
fed16f06	245	for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
a1bb33af UH	246	trigger_mask[i] = 0;
	247	trigger_value[i] = 0;
	248	}
	249
	250	stage = -1;
fed16f06	251	for (l = probes; l; l = l->next) {
1afe8989	252	probe = (struct sr_probe *)l->data;
fed16f06	253	if (probe->enabled == FALSE)
a1bb33af UH	254	continue;
	255	probe_bit = 1 << (probe->index - 1);
	256	probe_mask \|= probe_bit;
fed16f06 UH	257
fed16f06 UH	258	if (probe->trigger) {
a1bb33af	259	stage = 0;
fed16f06	260	for (tc = probe->trigger; *tc; tc++) {
a1bb33af	261	trigger_mask[stage] \|= probe_bit;
fed16f06	262	if (*tc == '1')
a1bb33af UH	263	trigger_value[stage] \|= probe_bit;
a1bb33af UH	264	stage++;
fed16f06	265	if (stage > NUM_TRIGGER_STAGES)
e46b8fb1	266	return SR_ERR;
a1bb33af UH	267	}
	268	}
	269	}
	270
e46b8fb1	271	return SR_OK;
a1bb33af UH	272	}
a1bb33af UH	273
a1bb33af UH	274	/*
	275	* API callbacks
	276	*/
	277
54ac5277	278	static int hw_init(const char *deviceinfo)
a1bb33af	279	{
a00ba012	280	struct sr_device_instance *sdi;
a1bb33af UH	281	struct libusb_device_descriptor des;
	282	libusb_device **devlist;
	283	int err, devcnt, i;
	284
17e1afcb	285	/* Avoid compiler warnings. */
afc8e4de UH	286	deviceinfo = deviceinfo;
afc8e4de UH	287
fed16f06	288	if (libusb_init(&usb_context) != 0) {
b08024a8	289	sr_warn("Failed to initialize USB.");
a1bb33af UH	290	return 0;
	291	}
	292
fed16f06	293	/* Find all ZeroPlus analyzers and add them to device list. */
a1bb33af UH	294	devcnt = 0;
a1bb33af UH	295	libusb_get_device_list(usb_context, &devlist);
fed16f06 UH	296
fed16f06 UH	297	for (i = 0; devlist[i]; i++) {
a1bb33af	298	err = libusb_get_device_descriptor(devlist[i], &des);
fed16f06	299	if (err != 0) {
b08024a8	300	sr_warn("failed to get device descriptor: %d", err);
a1bb33af UH	301	continue;
	302	}
	303
fed16f06 UH	304	if (des.idVendor == USB_VENDOR) {
	305	/*
	306	* Definitely a Zeroplus.
	307	* TODO: Any way to detect specific model/version in
	308	* the zeroplus range?
	309	*/
a00ba012	310	sdi = sr_device_instance_new(devcnt,
5a2326a7	311	SR_ST_INACTIVE, USB_VENDOR_NAME,
fed16f06 UH	312	USB_MODEL_NAME, USB_MODEL_VERSION);
fed16f06 UH	313	if (!sdi)
a1bb33af	314	return 0;
fed16f06 UH	315	device_instances =
fed16f06 UH	316	g_slist_append(device_instances, sdi);
6c290072	317	sdi->usb = sr_usb_device_instance_new(
fed16f06 UH	318	libusb_get_bus_number(devlist[i]),
fed16f06 UH	319	libusb_get_device_address(devlist[i]), NULL);
a1bb33af UH	320	devcnt++;
	321	}
	322	}
	323	libusb_free_device_list(devlist, 1);
	324
	325	return devcnt;
	326	}
	327
a1bb33af UH	328	static int hw_opendev(int device_index)
a1bb33af UH	329	{
a00ba012	330	struct sr_device_instance *sdi;
a1bb33af UH	331	int err;
a1bb33af UH	332
fed16f06	333	if (!(sdi = zp_open_device(device_index))) {
b08024a8	334	sr_warn("unable to open device");
e46b8fb1	335	return SR_ERR;
a1bb33af UH	336	}
	337
	338	err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
fed16f06	339	if (err != 0) {
b08024a8	340	sr_warn("Unable to claim interface: %d", err);
e46b8fb1	341	return SR_ERR;
a1bb33af UH	342	}
	343	analyzer_reset(sdi->usb->devhdl);
	344	analyzer_initialize(sdi->usb->devhdl);
a1bb33af UH	345
a1bb33af UH	346	analyzer_set_memory_size(MEMORY_SIZE_512K);
fed16f06	347	// analyzer_set_freq(g_freq, g_freq_scale);
a1bb33af	348	analyzer_set_trigger_count(1);
408e7199 UH	349	// analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
408e7199 UH	350	// * get_memory_size(g_memory_size)) / 100) >> 2);
fed16f06 UH	351	analyzer_set_ramsize_trigger_address(
fed16f06 UH	352	(100 * get_memory_size(MEMORY_SIZE_512K) / 100) >> 2);
a1bb33af	353
fed16f06 UH	354	#if 0
fed16f06 UH	355	if (g_double_mode == 1)
a1bb33af UH	356	analyzer_set_compression(COMPRESSION_DOUBLE);
	357	else if (g_compression == 1)
	358	analyzer_set_compression(COMPRESSION_ENABLE);
fed16f06 UH	359	else
	360	#endif
	361	analyzer_set_compression(COMPRESSION_NONE);
a1bb33af	362
fed16f06	363	if (cur_samplerate == 0) {
408e7199	364	/* Samplerate hasn't been set. Default to the slowest one. */
5a2326a7	365	if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE,
e46b8fb1 UH	366	&samplerates.low) == SR_ERR)
e46b8fb1 UH	367	return SR_ERR;
a1bb33af UH	368	}
a1bb33af UH	369
e46b8fb1	370	return SR_OK;
a1bb33af UH	371	}
a1bb33af UH	372
a1bb33af UH	373	static void hw_closedev(int device_index)
a1bb33af UH	374	{
a00ba012	375	struct sr_device_instance *sdi;
a1bb33af	376
d32d961d	377	if ((sdi = sr_get_device_instance(device_instances, device_index)))
a1bb33af	378	close_device(sdi);
a1bb33af UH	379	}
a1bb33af UH	380
a1bb33af UH	381	static void hw_cleanup(void)
	382	{
	383	GSList *l;
	384
408e7199	385	/* Properly close all devices... */
fed16f06	386	for (l = device_instances; l; l = l->next)
a00ba012	387	close_device((struct sr_device_instance *)l->data);
a1bb33af	388
408e7199	389	/* ...and free all their memory. */
fed16f06	390	for (l = device_instances; l; l = l->next)
a1bb33af UH	391	g_free(l->data);
	392	g_slist_free(device_instances);
	393	device_instances = NULL;
	394
fed16f06	395	if (usb_context)
a1bb33af UH	396	libusb_exit(usb_context);
a1bb33af UH	397	usb_context = NULL;
a1bb33af UH	398	}
a1bb33af UH	399
a1bb33af UH	400	static void *hw_get_device_info(int device_index, int device_info_id)
a1bb33af UH	401	{
a00ba012	402	struct sr_device_instance *sdi;
408e7199	403	void *info = NULL;
a1bb33af	404
d32d961d	405	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
a1bb33af UH	406	return NULL;
a1bb33af UH	407
fed16f06	408	switch (device_info_id) {
5a2326a7	409	case SR_DI_INSTANCE:
a1bb33af UH	410	info = sdi;
a1bb33af UH	411	break;
5a2326a7	412	case SR_DI_NUM_PROBES:
a1bb33af UH	413	info = GINT_TO_POINTER(num_channels);
a1bb33af UH	414	break;
5a2326a7	415	case SR_DI_SAMPLERATES:
a1bb33af UH	416	info = &samplerates;
a1bb33af UH	417	break;
5a2326a7	418	case SR_DI_TRIGGER_TYPES:
a1bb33af UH	419	info = TRIGGER_TYPES;
a1bb33af UH	420	break;
5a2326a7	421	case SR_DI_CUR_SAMPLERATE:
a1bb33af UH	422	info = &cur_samplerate;
	423	break;
	424	}
	425
	426	return info;
	427	}
	428
a1bb33af UH	429	static int hw_get_status(int device_index)
a1bb33af UH	430	{
a00ba012	431	struct sr_device_instance *sdi;
a1bb33af	432
d32d961d	433	sdi = sr_get_device_instance(device_instances, device_index);
fed16f06	434	if (sdi)
a1bb33af UH	435	return sdi->status;
a1bb33af UH	436	else
5a2326a7	437	return SR_ST_NOT_FOUND;
a1bb33af UH	438	}
a1bb33af UH	439
a1bb33af UH	440	static int *hw_get_capabilities(void)
a1bb33af UH	441	{
a1bb33af UH	442	return capabilities;
	443	}
	444
fed16f06	445	/* TODO: This will set the same samplerate for all devices. */
afc8e4de	446	static int set_configuration_samplerate(uint64_t samplerate)
a1bb33af	447	{
b08024a8	448	sr_info("%s(%" PRIu64 ")", __FUNCTION__, samplerate);
59df0c77 UH	449	if (samplerate > SR_MHZ(1))
	450	analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
	451	else if (samplerate > SR_KHZ(1))
	452	analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
a1bb33af	453	else
fed16f06	454	analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
a1bb33af UH	455
	456	cur_samplerate = samplerate;
	457
e46b8fb1	458	return SR_OK;
a1bb33af UH	459	}
	460
	461	static int hw_set_configuration(int device_index, int capability, void *value)
	462	{
a00ba012	463	struct sr_device_instance *sdi;
a1bb33af UH	464	uint64_t *tmp_u64;
a1bb33af UH	465
d32d961d	466	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
e46b8fb1	467	return SR_ERR;
a1bb33af UH	468
a1bb33af UH	469	switch (capability) {
5a2326a7	470	case SR_HWCAP_SAMPLERATE:
fed16f06 UH	471	tmp_u64 = value;
fed16f06 UH	472	return set_configuration_samplerate(*tmp_u64);
5a2326a7	473	case SR_HWCAP_PROBECONFIG:
fed16f06	474	return configure_probes((GSList *) value);
5a2326a7	475	case SR_HWCAP_LIMIT_SAMPLES:
2458ea65 BV	476	tmp_u64 = value;
2458ea65 BV	477	limit_samples = *tmp_u64;
e46b8fb1	478	return SR_OK;
fed16f06	479	default:
e46b8fb1	480	return SR_ERR;
a1bb33af UH	481	}
	482	}
	483
	484	static int hw_start_acquisition(int device_index, gpointer session_device_id)
	485	{
a00ba012	486	struct sr_device_instance *sdi;
b9c735a2 UH	487	struct sr_datafeed_packet packet;
b9c735a2 UH	488	struct sr_datafeed_header header;
a1bb33af	489	int res;
afc8e4de	490	unsigned int packet_num;
a1bb33af UH	491	unsigned char *buf;
a1bb33af UH	492
d32d961d	493	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
e46b8fb1	494	return SR_ERR;
a1bb33af	495
a143e4e5 BV	496	/* push configured settings to device */
	497	analyzer_configure(sdi->usb->devhdl);
	498
a1bb33af	499	analyzer_start(sdi->usb->devhdl);
b08024a8	500	sr_info("Waiting for data");
a1bb33af UH	501	analyzer_wait_data(sdi->usb->devhdl);
a1bb33af UH	502
b08024a8 UH	503	sr_info("Stop address = 0x%x",
	504	analyzer_get_stop_address(sdi->usb->devhdl));
	505	sr_info("Now address = 0x%x",
	506	analyzer_get_now_address(sdi->usb->devhdl));
	507	sr_info("Trigger address = 0x%x",
	508	analyzer_get_trigger_address(sdi->usb->devhdl));
a1bb33af	509
5a2326a7	510	packet.type = SR_DF_HEADER;
b9c735a2	511	packet.length = sizeof(struct sr_datafeed_header);
fed16f06	512	packet.payload = (unsigned char *)&header;
a1bb33af UH	513	header.feed_version = 1;
a1bb33af UH	514	gettimeofday(&header.starttime, NULL);
4c100f32	515	header.samplerate = cur_samplerate;
5a2326a7	516	header.protocol_id = SR_PROTO_RAW;
c2616fb9 DR	517	header.num_logic_probes = num_channels;
c2616fb9 DR	518	header.num_analog_probes = 0;
8a2efef2	519	sr_session_bus(session_device_id, &packet);
a1bb33af	520
b53738ba UH	521	if (!(buf = g_try_malloc(PACKET_SIZE))) {
	522	sr_err("zeroplus: %s: buf malloc failed", __func__);
	523	return SR_ERR_MALLOC;
	524	}
	525
a1bb33af	526	analyzer_read_start(sdi->usb->devhdl);
fed16f06 UH	527	/* Send the incoming transfer to the session bus. */
	528	for (packet_num = 0; packet_num < (memory_size * 4 / PACKET_SIZE);
	529	packet_num++) {
a1bb33af	530	res = analyzer_read_data(sdi->usb->devhdl, buf, PACKET_SIZE);
408e7199	531	#if 0
b08024a8 UH	532	sr_info("Tried to read %llx bytes, actually read %x bytes",
b08024a8 UH	533	PACKET_SIZE, res);
408e7199	534	#endif
a1bb33af	535
5a2326a7	536	packet.type = SR_DF_LOGIC;
a1bb33af	537	packet.length = PACKET_SIZE;
4c046c6b	538	packet.unitsize = 4;
a1bb33af	539	packet.payload = buf;
8a2efef2	540	sr_session_bus(session_device_id, &packet);
a1bb33af UH	541	}
	542	analyzer_read_stop(sdi->usb->devhdl);
	543	g_free(buf);
	544
5a2326a7	545	packet.type = SR_DF_END;
8a2efef2	546	sr_session_bus(session_device_id, &packet);
a1bb33af	547
e46b8fb1	548	return SR_OK;
a1bb33af UH	549	}
a1bb33af UH	550
fed16f06	551	/* This stops acquisition on ALL devices, ignoring device_index. */
a1bb33af UH	552	static void hw_stop_acquisition(int device_index, gpointer session_device_id)
a1bb33af UH	553	{
b9c735a2	554	struct sr_datafeed_packet packet;
a00ba012	555	struct sr_device_instance *sdi;
a1bb33af	556
5a2326a7	557	packet.type = SR_DF_END;
8a2efef2	558	sr_session_bus(session_device_id, &packet);
a1bb33af	559
d32d961d	560	if (!(sdi = sr_get_device_instance(device_instances, device_index)))
fed16f06	561	return; /* TODO: Cry? */
a1bb33af UH	562
a1bb33af UH	563	analyzer_reset(sdi->usb->devhdl);
fed16f06	564	/* TODO: Need to cancel and free any queued up transfers. */
a1bb33af UH	565	}
a1bb33af UH	566
5c2d46d1	567	struct sr_device_plugin zeroplus_logic_cube_plugin_info = {
e519ba86 UH	568	.name = "zeroplus-logic-cube",
	569	.longname = "Zeroplus Logic Cube LAP-C series",
	570	.api_version = 1,
	571	.init = hw_init,
	572	.cleanup = hw_cleanup,
86f5e3d8 UH	573	.opendev = hw_opendev,
86f5e3d8 UH	574	.closedev = hw_closedev,
e519ba86 UH	575	.get_device_info = hw_get_device_info,
	576	.get_status = hw_get_status,
	577	.get_capabilities = hw_get_capabilities,
	578	.set_configuration = hw_set_configuration,
	579	.start_acquisition = hw_start_acquisition,
	580	.stop_acquisition = hw_stop_acquisition,
a1bb33af	581	};