[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 <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <inttypes.h>
#include <glib.h>
#include <libusb.h>
#include "config.h"
#include "sigrok.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 */
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[] = {
	HWCAP_LOGIC_ANALYZER,
	HWCAP_SAMPLERATE,
	HWCAP_PROBECONFIG,
	HWCAP_CAPTURE_RATIO,
	/* these are really implemented in the driver, not the hardware */

	HWCAP_LIMIT_SAMPLES,
	0
};

/* list of struct sigrok_device_instance, maintained by opendev() and 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 */

// XXX we shouldn't support 150MHz and 200MHz on devices that don't go up that high
static uint64_t supported_samplerates[] = {
	100,
	500,
	KHZ(1),
	KHZ(5),
	KHZ(25),
	KHZ(50),
	KHZ(100),
	KHZ(200),
	KHZ(400),
	KHZ(800),
	MHZ(1),
	MHZ(10),
	MHZ(25),
	MHZ(50),
	MHZ(80),
	MHZ(100),
	MHZ(150),
	MHZ(200),
	0
};

static struct samplerates samplerates = {
	0,0,0,
	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;
int num_channels = 32; // XXX this is not getting initialized before it is needed :(
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;
}

struct sigrok_device_instance *zp_open_device(int device_index)
{
	struct sigrok_device_instance *sdi;
	libusb_device **devlist;
	struct libusb_device_descriptor des;
	unsigned int j;
	int err, i;

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

	libusb_get_device_list(usb_context, &devlist);
	if(sdi->status == ST_INACTIVE) {
		/* find the device by vendor, product, bus and address */
		libusb_get_device_list(usb_context, &devlist);
		for(i = 0; devlist[i]; i++) {
			if( (err = libusb_get_device_descriptor(devlist[i], &des)) ) {
				g_warning("failed to get device descriptor: %d", err);
				continue;
			}

			if(des.idVendor == USB_VENDOR) {
				if(libusb_get_bus_number(devlist[i]) == sdi->usb->bus &&
						libusb_get_device_address(devlist[i]) == sdi->usb->address) {
							for (j = 0; j < sizeof(zeroplus_models) / sizeof(zeroplus_models[0]); j++) {
								if (des.idProduct == zeroplus_models[j].pid) {
									g_message("Found PID=%04X (%s)", des.idProduct, zeroplus_models[j].model_name);
									num_channels = zeroplus_models[j].channels;
									memory_size = zeroplus_models[j].sample_depth * 1024;
									break;
								}
							}
							if (num_channels == 0) {
								g_warning("Unknown ZeroPlus device %04X", des.idProduct);
								continue;
							}
					/* found it */
					if( !(err = libusb_open(devlist[i], &(sdi->usb->devhdl))) ) {
						sdi->status = ST_ACTIVE;
						g_message("opened device %d on %d.%d interface %d", sdi->index,
								sdi->usb->bus, sdi->usb->address, USB_INTERFACE);
					}
					else {
						g_warning("failed to open device: %d", err);
						sdi = NULL;
					}
				}
			}
		}
	}
	else {
		/* status must be ST_ACTIVE, i.e. already in use... */
		sdi = NULL;
	}
	libusb_free_device_list(devlist, 1);

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

	return sdi;
}


static void close_device(struct sigrok_device_instance *sdi)
{

	if(sdi->usb->devhdl)
	{
		g_message("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 = ST_INACTIVE;
	}

}


static int configure_probes(GSList *probes)
{
	struct 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 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 SIGROK_ERR;
			}
		}
	}

	return SIGROK_OK;
}


/*
 * API callbacks
 */

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

	/* QUICK HACK */
	deviceinfo = deviceinfo;

	if(libusb_init(&usb_context) != 0) {
		g_warning("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) {
			g_warning("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 = sigrok_device_instance_new(devcnt, 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 = 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 sigrok_device_instance *sdi;
	int err;

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

	err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
	if(err != 0) {
		g_warning("Unable to claim interface: %d", err);
		return SIGROK_ERR;
	}
	analyzer_reset(sdi->usb->devhdl);
	analyzer_initialize(sdi->usb->devhdl);
	analyzer_configure(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 (g_double_mode == 1)
		analyzer_set_compression(COMPRESSION_DOUBLE);
	else if (g_compression == 1)
		analyzer_set_compression(COMPRESSION_ENABLE);
	else */
		analyzer_set_compression(COMPRESSION_NONE);

	if(cur_samplerate == 0) {
		/* sample rate hasn't been set; default to the slowest it has */
		if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &samplerates.low) == SIGROK_ERR)
			return SIGROK_ERR;
	}

	return SIGROK_OK;
}


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

	if( (sdi = get_sigrok_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 sigrok_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 sigrok_device_instance *sdi;
	void *info;

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

	info = NULL;
	switch(device_info_id)
	{
	case DI_INSTANCE:
		info = sdi;
		break;
	case DI_NUM_PROBES:
		info = GINT_TO_POINTER(num_channels);
		break;
	case DI_SAMPLERATES:
		info = &samplerates;
		break;
	case DI_TRIGGER_TYPES:
		info = TRIGGER_TYPES;
		break;
	case DI_CUR_SAMPLERATE:
		info = &cur_samplerate;
		break;
	}

	return info;
}


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

	sdi = get_sigrok_device_instance(device_instances, device_index);
	if(sdi)
		return sdi->status;
	else
		return ST_NOT_FOUND;
}


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

// XXX this will set the same samplerate for all devices
static int set_configuration_samplerate(uint64_t samplerate)
{
	g_message("%s(%llu)", __FUNCTION__, samplerate);
	if (samplerate > MHZ(1))
		analyzer_set_freq(samplerate / MHZ(1), FREQ_SCALE_MHZ);
	else if (samplerate > KHZ(1))
		analyzer_set_freq(samplerate / KHZ(1), FREQ_SCALE_KHZ);
	else
		analyzer_set_freq(samplerate , FREQ_SCALE_HZ);

	cur_samplerate = samplerate;

	return SIGROK_OK;
}

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

	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
		return SIGROK_ERR;

	switch (capability) {
		case HWCAP_SAMPLERATE:
			tmp_u64 = value;
			return set_configuration_samplerate(*tmp_u64);

		case HWCAP_PROBECONFIG:
			return configure_probes( (GSList *) value);

		case HWCAP_LIMIT_SAMPLES:
			limit_samples = strtoull(value, NULL, 10);
			return SIGROK_OK;

		default:
			return SIGROK_ERR;
	}
}

static int hw_start_acquisition(int device_index, gpointer session_device_id)
{
	struct sigrok_device_instance *sdi;
	struct datafeed_packet packet;
	struct datafeed_header header;
	int res;
	unsigned int packet_num;
	unsigned char *buf;

	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
		return SIGROK_ERR;

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

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

	packet.type = DF_HEADER;
	packet.length = sizeof(struct datafeed_header);
	packet.payload = (unsigned char *) &header;
	header.feed_version = 1;
	gettimeofday(&header.starttime, NULL);
	header.samplerate = cur_samplerate;
	header.protocol_id = PROTO_RAW;
	header.num_probes = num_channels;
	session_bus(session_device_id, &packet);

	buf = g_malloc(PACKET_SIZE);
	if (!buf)
		return SIGROK_ERR;
	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);
//		g_message("Tried to read %llx bytes, actually read %x bytes", PACKET_SIZE, res);

		packet.type = DF_LOGIC32;
		packet.length = PACKET_SIZE;
		packet.payload = buf;
		session_bus(session_device_id, &packet);		
	}
	analyzer_read_stop(sdi->usb->devhdl);
	g_free(buf);

	packet.type = DF_END;
	session_bus(session_device_id, &packet);

	return SIGROK_OK;
}


/* this stops acquisition on ALL devices, ignoring device_index */
static void hw_stop_acquisition(int device_index, gpointer session_device_id)
{
	struct datafeed_packet packet;
	struct sigrok_device_instance *sdi;

	packet.type = DF_END;
	session_bus(session_device_id, &packet);

	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
		return; // XXX cry?

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


struct device_plugin zeroplus_logic_cube_plugin_info = {
	"zeroplus-logic-cube",
	1,
	hw_init,
	hw_cleanup,

	hw_opendev,
	hw_closedev,
	hw_get_device_info,
	hw_get_status,
	hw_get_capabilities,
	hw_set_configuration,
	hw_start_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
	20	#include <stdio.h>
	21	#include <stdlib.h>
	22	#include <sys/time.h>
	23	#include <inttypes.h>
	24	#include <glib.h>
	25	#include <libusb.h>
	26	#include "config.h"
	27	#include "sigrok.h"
	28	#include "analyzer.h"
	29
	30	#define USB_VENDOR 0x0c12
	31	#define USB_VENDOR_NAME "Zeroplus"
	32	#define USB_MODEL_NAME "Logic Cube"
	33	#define USB_MODEL_VERSION ""
	34
	35	#define USB_INTERFACE 0
	36	#define USB_CONFIGURATION 1
	37	#define NUM_TRIGGER_STAGES 4
	38	#define TRIGGER_TYPES "01"
	39
	40	#define PACKET_SIZE 2048 // ??
	41
	42	typedef struct {
	43	unsigned short pid;
	44	char model_name[64];
	45	unsigned int channels;
	46	unsigned int sample_depth; // in Ksamples/channel
	47	unsigned int max_sampling_freq;
	48	} model_t;
	49
	50	/* Note -- 16032, 16064 and 16128 usually -- but not always -- have the same 128K sample depth */
	51	model_t zeroplus_models[] = {
	52	{0x7009, "LAP-C(16064)", 16, 64, 100},
	53	{0x700A, "LAP-C(16128)", 16, 128, 200},
	54	{0x700B, "LAP-C(32128)", 32, 128, 200},
	55	{0x700C, "LAP-C(321000)", 32, 1024, 200},
	56	{0x700D, "LAP-C(322000)", 32, 2048, 200},
	57	{0x700E, "LAP-C(16032)", 16, 32, 100},
	58	{0x7016, "LAP-C(162000)", 16, 2048, 200},
	59	};
	60
	61	static int capabilities[] = {
	62	HWCAP_LOGIC_ANALYZER,
	63	HWCAP_SAMPLERATE,
	64	HWCAP_PROBECONFIG,
65	HWCAP_CAPTURE_RATIO,
66	/* these are really implemented in the driver, not the hardware */
67
68	HWCAP_LIMIT_SAMPLES,
69	0
70	};
71
72	/* list of struct sigrok_device_instance, maintained by opendev() and closedev() */
73	static GSList *device_instances = NULL;
74
75	static libusb_context *usb_context = NULL;
76
4c100f32	77	/* The hardware supports more samplerates than these, but these are the options
a1bb33af UH	78	hardcoded into the vendor's Windows GUI */
	79
	80	// XXX we shouldn't support 150MHz and 200MHz on devices that don't go up that high
	81	static uint64_t supported_samplerates[] = {
	82	100,
	83	500,
	84	KHZ(1),
	85	KHZ(5),
	86	KHZ(25),
	87	KHZ(50),
	88	KHZ(100),
	89	KHZ(200),
	90	KHZ(400),
	91	KHZ(800),
	92	MHZ(1),
	93	MHZ(10),
	94	MHZ(25),
	95	MHZ(50),
	96	MHZ(80),
	97	MHZ(100),
	98	MHZ(150),
	99	MHZ(200),
	100	0
	101	};
	102
	103	static struct samplerates samplerates = {
	104	0,0,0,
	105	supported_samplerates
	106	};
	107
	108	/* TODO: all of these should go in a device-specific struct */
	109	static uint64_t cur_samplerate = 0;
	110	static uint64_t limit_samples = 0;
86c5e279	111	int num_channels = 32; // XXX this is not getting initialized before it is needed :(
a1bb33af	112	uint64_t memory_size = 0;
86c5e279 UH	113	static uint8_t probe_mask = 0;
	114	static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = {0};
	115	static uint8_t trigger_value[NUM_TRIGGER_STAGES] = {0};
	116	// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = {0};
a1bb33af UH	117
	118
	119	static int hw_set_configuration(int device_index, int capability, void *value);
	120
	121	static unsigned int get_memory_size(int type)
	122	{
	123	if (type == MEMORY_SIZE_8K)
	124	return 8*1024;
	125	else if (type == MEMORY_SIZE_64K)
	126	return 64*1024;
	127	else if (type == MEMORY_SIZE_128K)
	128	return 128*1024;
	129	else if (type == MEMORY_SIZE_512K)
	130	return 512*1024;
	131	else
	132	return 0;
	133	}
	134
	135	struct sigrok_device_instance *zp_open_device(int device_index)
	136	{
	137	struct sigrok_device_instance *sdi;
	138	libusb_device **devlist;
	139	struct libusb_device_descriptor des;
afc8e4de UH	140	unsigned int j;
afc8e4de UH	141	int err, i;
a1bb33af UH	142
	143	if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
	144	return NULL;
	145
	146	libusb_get_device_list(usb_context, &devlist);
	147	if(sdi->status == ST_INACTIVE) {
	148	/* find the device by vendor, product, bus and address */
	149	libusb_get_device_list(usb_context, &devlist);
	150	for(i = 0; devlist[i]; i++) {
	151	if( (err = libusb_get_device_descriptor(devlist[i], &des)) ) {
	152	g_warning("failed to get device descriptor: %d", err);
	153	continue;
	154	}
	155
	156	if(des.idVendor == USB_VENDOR) {
	157	if(libusb_get_bus_number(devlist[i]) == sdi->usb->bus &&
	158	libusb_get_device_address(devlist[i]) == sdi->usb->address) {
	159	for (j = 0; j < sizeof(zeroplus_models) / sizeof(zeroplus_models[0]); j++) {
	160	if (des.idProduct == zeroplus_models[j].pid) {
	161	g_message("Found PID=%04X (%s)", des.idProduct, zeroplus_models[j].model_name);
	162	num_channels = zeroplus_models[j].channels;
	163	memory_size = zeroplus_models[j].sample_depth * 1024;
	164	break;
	165	}
	166	}
	167	if (num_channels == 0) {
	168	g_warning("Unknown ZeroPlus device %04X", des.idProduct);
	169	continue;
	170	}
	171	/* found it */
	172	if( !(err = libusb_open(devlist[i], &(sdi->usb->devhdl))) ) {
	173	sdi->status = ST_ACTIVE;
	174	g_message("opened device %d on %d.%d interface %d", sdi->index,
	175	sdi->usb->bus, sdi->usb->address, USB_INTERFACE);
	176	}
	177	else {
	178	g_warning("failed to open device: %d", err);
	179	sdi = NULL;
	180	}
	181	}
	182	}
	183	}
	184	}
	185	else {
	186	/* status must be ST_ACTIVE, i.e. already in use... */
	187	sdi = NULL;
	188	}
	189	libusb_free_device_list(devlist, 1);
	190
	191	if(sdi && sdi->status != ST_ACTIVE)
	192	sdi = NULL;
	193
	194	return sdi;
	195	}
	196
	197
	198	static void close_device(struct sigrok_device_instance *sdi)
	199	{
	200
	201	if(sdi->usb->devhdl)
	202	{
	203	g_message("closing device %d on %d.%d interface %d", sdi->index, sdi->usb->bus,
	204	sdi->usb->address, USB_INTERFACE);
	205	libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE);
206	libusb_close(sdi->usb->devhdl);
207	sdi->usb->devhdl = NULL;
208	sdi->status = ST_INACTIVE;
209	}
210
211	}
212
213
214	static int configure_probes(GSList *probes)
215	{
216	struct probe *probe;
217	GSList *l;
218	int probe_bit, stage, i;
219	char *tc;
220
221	probe_mask = 0;
222	for(i = 0; i < NUM_TRIGGER_STAGES; i++)
223	{
224	trigger_mask[i] = 0;
225	trigger_value[i] = 0;
226	}
227
228	stage = -1;
229	for(l = probes; l; l = l->next)
230	{
231	probe = (struct probe *) l->data;
232	if(probe->enabled == FALSE)
233	continue;
234	probe_bit = 1 << (probe->index - 1);
235	probe_mask \|= probe_bit;
236	if(probe->trigger)
237	{
238	stage = 0;
239	for(tc = probe->trigger; *tc; tc++)
240	{
241	trigger_mask[stage] \|= probe_bit;
242	if(*tc == '1')
243	trigger_value[stage] \|= probe_bit;
244	stage++;
245	if(stage > NUM_TRIGGER_STAGES)
e31b636d	246	return SIGROK_ERR;
a1bb33af UH	247	}
	248	}
	249	}
	250
	251	return SIGROK_OK;
	252	}
	253
	254
	255
	256	/*
	257	* API callbacks
	258	*/
	259
	260	static int hw_init(char *deviceinfo)
	261	{
	262	struct sigrok_device_instance *sdi;
	263	struct libusb_device_descriptor des;
	264	libusb_device **devlist;
	265	int err, devcnt, i;
	266
afc8e4de UH	267	/* QUICK HACK */
	268	deviceinfo = deviceinfo;
	269
a1bb33af UH	270	if(libusb_init(&usb_context) != 0) {
	271	g_warning("Failed to initialize USB.");
	272	return 0;
	273	}
	274
	275	/* find all ZeroPlus analyzers and add them to device list */
	276	devcnt = 0;
	277	libusb_get_device_list(usb_context, &devlist);
	278	for(i = 0; devlist[i]; i++) {
	279	err = libusb_get_device_descriptor(devlist[i], &des);
	280	if(err != 0) {
	281	g_warning("failed to get device descriptor: %d", err);
	282	continue;
	283	}
	284
	285	if(des.idVendor == USB_VENDOR) {
	286	/* definitely a Zeroplus */
	287	/* TODO: any way to detect specific model/version in the zeroplus range? */
	288	sdi = sigrok_device_instance_new(devcnt, ST_INACTIVE,
	289	USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION);
	290	if(!sdi)
	291	return 0;
	292	device_instances = g_slist_append(device_instances, sdi);
	293	sdi->usb = usb_device_instance_new(libusb_get_bus_number(devlist[i]),
	294	libusb_get_device_address(devlist[i]), NULL);
	295	devcnt++;
	296	}
	297	}
	298	libusb_free_device_list(devlist, 1);
	299
	300	return devcnt;
	301	}
	302
	303
	304	static int hw_opendev(int device_index)
	305	{
	306	struct sigrok_device_instance *sdi;
	307	int err;
	308
	309	if( !(sdi = zp_open_device(device_index)) ) {
	310	g_warning("unable to open device");
e31b636d	311	return SIGROK_ERR;
a1bb33af UH	312	}
	313
	314	err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE);
	315	if(err != 0) {
	316	g_warning("Unable to claim interface: %d", err);
e31b636d	317	return SIGROK_ERR;
a1bb33af UH	318	}
	319	analyzer_reset(sdi->usb->devhdl);
	320	analyzer_initialize(sdi->usb->devhdl);
	321	analyzer_configure(sdi->usb->devhdl);
	322
	323	analyzer_set_memory_size(MEMORY_SIZE_512K);
	324	// analyzer_set_freq(g_freq, g_freq_scale);
	325	analyzer_set_trigger_count(1);
	326	// analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) * get_memory_size(g_memory_size)) / 100) >> 2);
	327	analyzer_set_ramsize_trigger_address((100 * get_memory_size(MEMORY_SIZE_512K) / 100) >> 2);
	328
	329	/* if (g_double_mode == 1)
	330	analyzer_set_compression(COMPRESSION_DOUBLE);
	331	else if (g_compression == 1)
	332	analyzer_set_compression(COMPRESSION_ENABLE);
	333	else */
	334	analyzer_set_compression(COMPRESSION_NONE);
	335
	336	if(cur_samplerate == 0) {
	337	/* sample rate hasn't been set; default to the slowest it has */
e31b636d UH	338	if(hw_set_configuration(device_index, HWCAP_SAMPLERATE, &samplerates.low) == SIGROK_ERR)
e31b636d UH	339	return SIGROK_ERR;
a1bb33af UH	340	}
	341
	342	return SIGROK_OK;
	343	}
	344
	345
	346	static void hw_closedev(int device_index)
	347	{
	348	struct sigrok_device_instance *sdi;
	349
	350	if( (sdi = get_sigrok_device_instance(device_instances, device_index)) )
	351	close_device(sdi);
	352
	353	}
	354
	355
	356	static void hw_cleanup(void)
	357	{
	358	GSList *l;
	359
	360	/* properly close all devices */
	361	for(l = device_instances; l; l = l->next)
	362	close_device( (struct sigrok_device_instance *) l->data);
	363
	364	/* and free all their memory */
	365	for(l = device_instances; l; l = l->next)
	366	g_free(l->data);
	367	g_slist_free(device_instances);
	368	device_instances = NULL;
	369
	370	if(usb_context)
	371	libusb_exit(usb_context);
	372	usb_context = NULL;
	373
	374	}
	375
	376
	377	static void *hw_get_device_info(int device_index, int device_info_id)
	378	{
	379	struct sigrok_device_instance *sdi;
	380	void *info;
	381
	382	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
	383	return NULL;
	384
	385	info = NULL;
	386	switch(device_info_id)
	387	{
	388	case DI_INSTANCE:
	389	info = sdi;
	390	break;
	391	case DI_NUM_PROBES:
	392	info = GINT_TO_POINTER(num_channels);
	393	break;
	394	case DI_SAMPLERATES:
	395	info = &samplerates;
	396	break;
	397	case DI_TRIGGER_TYPES:
	398	info = TRIGGER_TYPES;
	399	break;
4c100f32	400	case DI_CUR_SAMPLERATE:
a1bb33af UH	401	info = &cur_samplerate;
	402	break;
	403	}
	404
	405	return info;
	406	}
	407
	408
	409	static int hw_get_status(int device_index)
	410	{
	411	struct sigrok_device_instance *sdi;
	412
	413	sdi = get_sigrok_device_instance(device_instances, device_index);
	414	if(sdi)
	415	return sdi->status;
	416	else
	417	return ST_NOT_FOUND;
	418	}
	419
	420
	421	static int *hw_get_capabilities(void)
	422	{
a1bb33af UH	423	return capabilities;
	424	}
	425
	426	// XXX this will set the same samplerate for all devices
afc8e4de	427	static int set_configuration_samplerate(uint64_t samplerate)
a1bb33af UH	428	{
	429	g_message("%s(%llu)", __FUNCTION__, samplerate);
	430	if (samplerate > MHZ(1))
	431	analyzer_set_freq(samplerate / MHZ(1), FREQ_SCALE_MHZ);
	432	else if (samplerate > KHZ(1))
	433	analyzer_set_freq(samplerate / KHZ(1), FREQ_SCALE_KHZ);
	434	else
	435	analyzer_set_freq(samplerate , FREQ_SCALE_HZ);
	436
	437	cur_samplerate = samplerate;
	438
	439	return SIGROK_OK;
	440	}
	441
	442	static int hw_set_configuration(int device_index, int capability, void *value)
	443	{
	444	struct sigrok_device_instance *sdi;
	445	uint64_t *tmp_u64;
	446
	447	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
e31b636d	448	return SIGROK_ERR;
a1bb33af UH	449
	450	switch (capability) {
	451	case HWCAP_SAMPLERATE:
	452	tmp_u64 = value;
afc8e4de	453	return set_configuration_samplerate(*tmp_u64);
a1bb33af UH	454
	455	case HWCAP_PROBECONFIG:
	456	return configure_probes( (GSList *) value);
	457
	458	case HWCAP_LIMIT_SAMPLES:
	459	limit_samples = strtoull(value, NULL, 10);
	460	return SIGROK_OK;
	461
	462	default:
e31b636d	463	return SIGROK_ERR;
a1bb33af UH	464	}
	465	}
	466
	467	static int hw_start_acquisition(int device_index, gpointer session_device_id)
	468	{
	469	struct sigrok_device_instance *sdi;
	470	struct datafeed_packet packet;
	471	struct datafeed_header header;
	472	int res;
afc8e4de	473	unsigned int packet_num;
a1bb33af UH	474	unsigned char *buf;
	475
	476	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
e31b636d	477	return SIGROK_ERR;
a1bb33af UH	478
	479	analyzer_start(sdi->usb->devhdl);
	480	g_message("Waiting for data");
	481	analyzer_wait_data(sdi->usb->devhdl);
	482
	483	g_message("Stop address = 0x%x", analyzer_get_stop_address(sdi->usb->devhdl));
	484	g_message("Now address = 0x%x", analyzer_get_now_address(sdi->usb->devhdl));
	485	g_message("Trigger address = 0x%x", analyzer_get_trigger_address(sdi->usb->devhdl));
	486
	487	packet.type = DF_HEADER;
	488	packet.length = sizeof(struct datafeed_header);
	489	packet.payload = (unsigned char *) &header;
	490	header.feed_version = 1;
	491	gettimeofday(&header.starttime, NULL);
4c100f32	492	header.samplerate = cur_samplerate;
a1bb33af UH	493	header.protocol_id = PROTO_RAW;
	494	header.num_probes = num_channels;
	495	session_bus(session_device_id, &packet);
	496
	497	buf = g_malloc(PACKET_SIZE);
	498	if (!buf)
e31b636d	499	return SIGROK_ERR;
a1bb33af UH	500	analyzer_read_start(sdi->usb->devhdl);
	501	/* send the incoming transfer to the session bus */
	502	for(packet_num = 0; packet_num < (memory_size * 4 / PACKET_SIZE); packet_num++) {
	503	res = analyzer_read_data(sdi->usb->devhdl, buf, PACKET_SIZE);
	504	// g_message("Tried to read %llx bytes, actually read %x bytes", PACKET_SIZE, res);
	505
	506	packet.type = DF_LOGIC32;
	507	packet.length = PACKET_SIZE;
	508	packet.payload = buf;
	509	session_bus(session_device_id, &packet);
	510	}
	511	analyzer_read_stop(sdi->usb->devhdl);
	512	g_free(buf);
	513
	514	packet.type = DF_END;
	515	session_bus(session_device_id, &packet);
	516
	517	return SIGROK_OK;
	518	}
	519
	520
	521	/* this stops acquisition on ALL devices, ignoring device_index */
	522	static void hw_stop_acquisition(int device_index, gpointer session_device_id)
	523	{
	524	struct datafeed_packet packet;
	525	struct sigrok_device_instance *sdi;
	526
	527	packet.type = DF_END;
	528	session_bus(session_device_id, &packet);
	529
	530	if( !(sdi = get_sigrok_device_instance(device_instances, device_index)))
	531	return; // XXX cry?
	532
	533	analyzer_reset(sdi->usb->devhdl);
	534	/* TODO: need to cancel and free any queued up transfers */
	535	}
	536
	537
	538
	539	struct device_plugin zeroplus_logic_cube_plugin_info = {
	540	"zeroplus-logic-cube",
	541	1,
	542	hw_init,
	543	hw_cleanup,
	544
	545	hw_opendev,
	546	hw_closedev,
	547	hw_get_device_info,
	548	hw_get_status,
	549	hw_get_capabilities,
	550	hw_set_configuration,
	551	hw_start_acquisition,
	552	hw_stop_acquisition
	553	};
	554