[libsigrok.git] / src / hardware / lecroy-logicstudio / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2015 Tilman Sauerbeck <tilman@code-monkey.de>
 * Copyright (C) 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 <config.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "protocol.h"

#define LOGICSTUDIO16_VID 0x05ff
#define LOGICSTUDIO16_PID_LACK_FIRMWARE 0xa001
#define LOGICSTUDIO16_PID_HAVE_FIRMWARE 0xa002

#define USB_INTERFACE 0
#define USB_CONFIGURATION 0
#define FX2_FIRMWARE "lecroy-logicstudio16-fx2lp.fw"

#define UNKNOWN_ADDRESS 0xff
#define MAX_RENUM_DELAY_MS 3000

static const uint32_t devopts[] = {
	SR_CONF_LOGIC_ANALYZER,
	SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
	SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
	SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
};

static const int32_t trigger_matches[] = {
	SR_TRIGGER_ZERO,
	SR_TRIGGER_ONE,
	SR_TRIGGER_RISING,
	SR_TRIGGER_FALLING,
	SR_TRIGGER_EDGE,
};

static const uint64_t samplerates[] = {
	SR_HZ(1000),
	SR_HZ(2500),
	SR_KHZ(5),
	SR_KHZ(10),
	SR_KHZ(25),
	SR_KHZ(50),
	SR_KHZ(100),
	SR_KHZ(250),
	SR_KHZ(500),
	SR_KHZ(1000),
	SR_KHZ(2500),
	SR_MHZ(5),
	SR_MHZ(10),
	SR_MHZ(25),
	SR_MHZ(50),
	SR_MHZ(100),
	SR_MHZ(250),
	SR_MHZ(500),
};

SR_PRIV struct sr_dev_driver lecroy_logicstudio_driver_info;

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

static struct sr_dev_inst *create_device(struct sr_dev_driver *di,
		struct sr_usb_dev_inst *usb, enum sr_dev_inst_status status,
		int64_t fw_updated)
{
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	char channel_name[8];
	int i;

	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	sdi->status = status;
	sdi->vendor = g_strdup("LeCroy");
	sdi->model = g_strdup("LogicStudio16");
	sdi->driver = di;
	sdi->inst_type = SR_INST_USB;
	sdi->conn = usb;

	for (i = 0; i < 16; i++) {
		snprintf(channel_name, sizeof(channel_name), "D%i", i);
		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
	}

	devc = g_malloc0(sizeof(struct dev_context));

	sdi->priv = devc;

	devc->fw_updated = fw_updated;
	devc->capture_ratio = 50;

	lls_set_samplerate(sdi, SR_MHZ(500));

	return sdi;
}

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	struct libusb_device_descriptor des;
	libusb_device **devlist;
	GSList *devices;
	char connection_id[64];
	size_t i;
	int r;

	(void)options;

	drvc = di->context;
	drvc->instances = NULL;

	devices = NULL;

	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);

	for (i = 0; devlist[i]; i++) {
		libusb_get_device_descriptor(devlist[i], &des);

		if (des.idVendor != LOGICSTUDIO16_VID)
			continue;

		usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));

		usb = NULL;

		switch (des.idProduct) {
		case LOGICSTUDIO16_PID_HAVE_FIRMWARE:
			usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
				libusb_get_device_address(devlist[i]), NULL);

			sdi = create_device(di, usb, SR_ST_INACTIVE, 0);
			break;
		case LOGICSTUDIO16_PID_LACK_FIRMWARE:
			r = ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
				USB_CONFIGURATION, FX2_FIRMWARE);
			if (r != SR_OK) {
				/*
				 * An error message has already been logged by
				 * ezusb_upload_firmware().
				 */
				continue;
			}

			/*
			 * Put unknown as the address so that we know we still
			 * need to get the proper address after the device
			 * renumerates.
			 */
			usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
				UNKNOWN_ADDRESS, NULL);

			sdi = create_device(di, usb, SR_ST_INITIALIZING,
				g_get_monotonic_time());
			break;
		default:
			break;
		}

		/* Cannot handle this device? */
		if (!usb)
			continue;

		sdi->connection_id = g_strdup(connection_id);

		drvc->instances = g_slist_append(drvc->instances, sdi);
		devices = g_slist_append(devices, sdi);
	}

	libusb_free_device_list(devlist, 1);

	return devices;
}

static GSList *dev_list(const struct sr_dev_driver *di)
{
	return ((struct drv_context *)(di->context))->instances;
}

static int open_device(struct sr_dev_inst *sdi)
{
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	struct libusb_device_descriptor des;
	libusb_device **devlist;
	char connection_id[64];
	bool is_opened;
	size_t i;
	int r;

	if (sdi->status == SR_ST_ACTIVE)
		return SR_ERR;

	drvc = sdi->driver->context;
	usb = sdi->conn;

	is_opened = FALSE;

	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);

	for (i = 0; devlist[i]; i++) {
		libusb_get_device_descriptor(devlist[i], &des);

		if (des.idVendor != LOGICSTUDIO16_VID ||
			des.idProduct != LOGICSTUDIO16_PID_HAVE_FIRMWARE)
			continue;

		usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));

		/*
		 * Check if this device is the same one that we associated
		 * with this sdi in scan() and bail if it isn't.
		 */
		if (strcmp(sdi->connection_id, connection_id))
			continue;

		r = libusb_open(devlist[i], &usb->devhdl);

		if (r) {
			sr_err("Failed to open device: %s.",
				libusb_error_name(r));
			break;
		}

		/* Fix up address after firmware upload. */
		if (usb->address == UNKNOWN_ADDRESS)
			usb->address = libusb_get_device_address(devlist[i]);

		is_opened = TRUE;

		break;
	}

	libusb_free_device_list(devlist, 1);

	if (!is_opened)
		return SR_ERR;

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

	sdi->status = SR_ST_ACTIVE;

	return SR_OK;
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	int64_t timediff_us, timediff_ms;
	int ret;

	drvc = sdi->driver->context;
	devc = sdi->priv;

	if (!drvc) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

	/*
	 * If we didn't need to upload FX2 firmware in scan(), open the device
	 * right away. Otherwise, wait up to MAX_RENUM_DELAY_MS ms for the
	 * FX2 to renumerate.
	 */
	if (!devc->fw_updated) {
		ret = open_device(sdi);
	} else {
		sr_info("Waiting for device to reset.");

		/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
		g_usleep(300 * 1000);
		timediff_ms = 0;

		while (timediff_ms < MAX_RENUM_DELAY_MS) {
			ret = open_device(sdi);

			if (ret == SR_OK)
				break;

			g_usleep(100 * 1000);

			timediff_us = g_get_monotonic_time() - devc->fw_updated;
			timediff_ms = timediff_us / 1000;

			sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
		}

		if (ret != SR_OK) {
			sr_err("Device failed to renumerate.");
			return SR_ERR;
		}

		sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
	}

	if (ret != SR_OK) {
		sr_err("Unable to open device.");
		return ret;
	}

	/*
	 * Only allocate the sample buffer now since it's rather large.
	 * Don't want to allocate it before we know we are going to use it.
	 */
	devc->fetched_samples = g_malloc(SAMPLE_BUF_SIZE);

	devc->conv8to16 = g_malloc(CONV_8TO16_BUF_SIZE);

	devc->intr_xfer = libusb_alloc_transfer(0);
	devc->bulk_xfer = libusb_alloc_transfer(0);

	return SR_OK;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_usb_dev_inst *usb;
	struct dev_context *devc;

	usb = sdi->conn;
	devc = sdi->priv;

	g_free(devc->fetched_samples);
	devc->fetched_samples = NULL;

	g_free(devc->conv8to16);
	devc->conv8to16 = NULL;

	if (devc->intr_xfer) {
		devc->intr_xfer->buffer = NULL; /* Points into devc. */
		libusb_free_transfer(devc->intr_xfer);
		devc->intr_xfer = NULL;
	}

	if (devc->bulk_xfer) {
		devc->bulk_xfer->buffer = NULL; /* Points into devc. */
		libusb_free_transfer(devc->bulk_xfer);
		devc->bulk_xfer = NULL;
	}

	if (!usb->devhdl)
		return SR_ERR;

	libusb_release_interface(usb->devhdl, 0);

	libusb_close(usb->devhdl);
	usb->devhdl = NULL;

	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int config_get(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;

	(void)cg;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

	switch (key) {
	case SR_CONF_SAMPLERATE:
		*data = g_variant_new_uint64(lls_get_samplerate(sdi));
		break;
	case SR_CONF_CAPTURE_RATIO:
		*data = g_variant_new_uint64(devc->capture_ratio);
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(uint32_t key, GVariant *data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	struct dev_context *devc;

	(void)cg;

	if (!sdi)
		return SR_ERR_ARG;

	devc = sdi->priv;

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

	switch (key) {
	case SR_CONF_SAMPLERATE:
		return lls_set_samplerate(sdi, g_variant_get_uint64(data));
	case SR_CONF_CAPTURE_RATIO:
		devc->capture_ratio = g_variant_get_uint64(data);
		if (devc->capture_ratio > 100)
			return SR_ERR;
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_list(uint32_t key, GVariant **data,
	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
	GVariantBuilder vb;
	GVariant *var;

	(void)sdi;
	(void)cg;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts),
				sizeof(uint32_t));
		break;
	case SR_CONF_SAMPLERATE:
		g_variant_builder_init(&vb, G_VARIANT_TYPE("a{sv}"));
		var = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
				samplerates, ARRAY_SIZE(samplerates),
				sizeof(uint64_t));
		g_variant_builder_add(&vb, "{sv}", "samplerates", var);
		*data = g_variant_builder_end(&vb);
		break;
	case SR_CONF_TRIGGER_MATCH:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				trigger_matches, ARRAY_SIZE(trigger_matches),
				sizeof(int32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_commit(const struct sr_dev_inst *sdi)
{
	return lls_setup_acquisition(sdi);
}

static int receive_usb_data(int fd, int revents, void *cb_data)
{
	struct drv_context *drvc;
	struct timeval tv;

	(void)fd;
	(void)revents;

	drvc = (struct drv_context *)cb_data;

	tv.tv_sec = 0;
	tv.tv_usec = 0;

	libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx,
		&tv, NULL);

	return TRUE;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct drv_context *drvc;
	int ret;

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

	drvc = sdi->driver->context;

	if ((ret = lls_start_acquisition(sdi)) < 0)
		return ret;

	std_session_send_df_header(sdi, LOG_PREFIX);

	return usb_source_add(sdi->session, drvc->sr_ctx, 100,
		receive_usb_data, drvc);
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	return lls_stop_acquisition(sdi);
}

SR_PRIV struct sr_dev_driver lecroy_logicstudio_driver_info = {
	.name = "lecroy-logicstudio",
	.longname = "LeCroy LogicStudio",
	.api_version = 1,
	.init = init,
	.cleanup = std_cleanup,
	.scan = scan,
	.dev_list = dev_list,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.config_commit = config_commit,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.context = NULL,
};
Commit	Line	Data
c7b17bcb TS	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2015 Tilman Sauerbeck <tilman@code-monkey.de>
	5	* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#include <config.h>
	22	#include <stdbool.h>
	23	#include <stdint.h>
	24	#include <string.h>
	25	#include "protocol.h"
	26
	27	#define LOGICSTUDIO16_VID 0x05ff
	28	#define LOGICSTUDIO16_PID_LACK_FIRMWARE 0xa001
	29	#define LOGICSTUDIO16_PID_HAVE_FIRMWARE 0xa002
	30
	31	#define USB_INTERFACE 0
	32	#define USB_CONFIGURATION 0
	33	#define FX2_FIRMWARE "lecroy-logicstudio16-fx2lp.fw"
	34
	35	#define UNKNOWN_ADDRESS 0xff
	36	#define MAX_RENUM_DELAY_MS 3000
	37
	38	static const uint32_t devopts[] = {
	39	SR_CONF_LOGIC_ANALYZER,
	40	SR_CONF_SAMPLERATE \| SR_CONF_GET \| SR_CONF_SET \| SR_CONF_LIST,
	41	SR_CONF_CAPTURE_RATIO \| SR_CONF_GET \| SR_CONF_SET,
	42	SR_CONF_TRIGGER_MATCH \| SR_CONF_LIST,
	43	};
	44
	45	static const int32_t trigger_matches[] = {
	46	SR_TRIGGER_ZERO,
	47	SR_TRIGGER_ONE,
	48	SR_TRIGGER_RISING,
	49	SR_TRIGGER_FALLING,
	50	SR_TRIGGER_EDGE,
	51	};
	52
	53	static const uint64_t samplerates[] = {
	54	SR_HZ(1000),
	55	SR_HZ(2500),
	56	SR_KHZ(5),
	57	SR_KHZ(10),
	58	SR_KHZ(25),
	59	SR_KHZ(50),
	60	SR_KHZ(100),
	61	SR_KHZ(250),
	62	SR_KHZ(500),
	63	SR_KHZ(1000),
	64	SR_KHZ(2500),
65	SR_MHZ(5),
66	SR_MHZ(10),
67	SR_MHZ(25),
68	SR_MHZ(50),
69	SR_MHZ(100),
70	SR_MHZ(250),
71	SR_MHZ(500),
72	};
73
74	SR_PRIV struct sr_dev_driver lecroy_logicstudio_driver_info;
75
76	static int init(struct sr_dev_driver di, struct sr_context sr_ctx)
77	{
78	return std_init(sr_ctx, di, LOG_PREFIX);
79	}
80
81	static struct sr_dev_inst create_device(struct sr_dev_driver di,
82	struct sr_usb_dev_inst *usb, enum sr_dev_inst_status status,
83	int64_t fw_updated)
84	{
85	struct sr_dev_inst *sdi;
86	struct dev_context *devc;
87	char channel_name[8];
88	int i;
89
90	sdi = g_malloc0(sizeof(struct sr_dev_inst));
91	sdi->status = status;
92	sdi->vendor = g_strdup("LeCroy");
93	sdi->model = g_strdup("LogicStudio16");
94	sdi->driver = di;
95	sdi->inst_type = SR_INST_USB;
96	sdi->conn = usb;
97
98	for (i = 0; i < 16; i++) {
99	snprintf(channel_name, sizeof(channel_name), "D%i", i);
100	sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
101	}
102
103	devc = g_malloc0(sizeof(struct dev_context));
104
105	sdi->priv = devc;
106
107	devc->fw_updated = fw_updated;
108	devc->capture_ratio = 50;
109
110	lls_set_samplerate(sdi, SR_MHZ(500));
111
112	return sdi;
113	}
114
115	static GSList scan(struct sr_dev_driver di, GSList *options)
116	{
117	struct sr_dev_inst *sdi;
118	struct drv_context *drvc;
119	struct sr_usb_dev_inst *usb;
120	struct libusb_device_descriptor des;
121	libusb_device **devlist;
122	GSList *devices;
123	char connection_id[64];
124	size_t i;
125	int r;
126
127	(void)options;
128
129	drvc = di->context;
130	drvc->instances = NULL;
131
132	devices = NULL;
133
134	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
135
136	for (i = 0; devlist[i]; i++) {
137	libusb_get_device_descriptor(devlist[i], &des);
138
139	if (des.idVendor != LOGICSTUDIO16_VID)
140	continue;
141
142	usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
143
144	usb = NULL;
145
146	switch (des.idProduct) {
147	case LOGICSTUDIO16_PID_HAVE_FIRMWARE:
148	usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
149	libusb_get_device_address(devlist[i]), NULL);
150
151	sdi = create_device(di, usb, SR_ST_INACTIVE, 0);
152	break;
153	case LOGICSTUDIO16_PID_LACK_FIRMWARE:
154	r = ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
155	USB_CONFIGURATION, FX2_FIRMWARE);
156	if (r != SR_OK) {
157	/*
158	* An error message has already been logged by
159	* ezusb_upload_firmware().
160	*/
161	continue;
162	}
163
164	/*
165	* Put unknown as the address so that we know we still
166	* need to get the proper address after the device
167	* renumerates.
168	*/
169	usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
170	UNKNOWN_ADDRESS, NULL);
171
172	sdi = create_device(di, usb, SR_ST_INITIALIZING,
173	g_get_monotonic_time());
174	break;
175	default:
176	break;
177	}
178
179	/* Cannot handle this device? */
180	if (!usb)
181	continue;
182
183	sdi->connection_id = g_strdup(connection_id);
184
185	drvc->instances = g_slist_append(drvc->instances, sdi);
186	devices = g_slist_append(devices, sdi);
187	}
188
189	libusb_free_device_list(devlist, 1);
190
191	return devices;
192	}
193
194	static GSList dev_list(const struct sr_dev_driver di)
195	{
196	return ((struct drv_context *)(di->context))->instances;
197	}
198
c7b17bcb TS	199	static int open_device(struct sr_dev_inst *sdi)
	200	{
	201	struct drv_context *drvc;
	202	struct sr_usb_dev_inst *usb;
	203	struct libusb_device_descriptor des;
	204	libusb_device **devlist;
	205	char connection_id[64];
	206	bool is_opened;
	207	size_t i;
	208	int r;
	209
	210	if (sdi->status == SR_ST_ACTIVE)
	211	return SR_ERR;
	212
	213	drvc = sdi->driver->context;
	214	usb = sdi->conn;
	215
	216	is_opened = FALSE;
	217
	218	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	219
	220	for (i = 0; devlist[i]; i++) {
	221	libusb_get_device_descriptor(devlist[i], &des);
	222
	223	if (des.idVendor != LOGICSTUDIO16_VID \|\|
	224	des.idProduct != LOGICSTUDIO16_PID_HAVE_FIRMWARE)
	225	continue;
	226
	227	usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
	228
	229	/*
	230	* Check if this device is the same one that we associated
	231	* with this sdi in scan() and bail if it isn't.
	232	*/
	233	if (strcmp(sdi->connection_id, connection_id))
	234	continue;
	235
	236	r = libusb_open(devlist[i], &usb->devhdl);
	237
	238	if (r) {
	239	sr_err("Failed to open device: %s.",
	240	libusb_error_name(r));
	241	break;
	242	}
	243
	244	/* Fix up address after firmware upload. */
	245	if (usb->address == UNKNOWN_ADDRESS)
	246	usb->address = libusb_get_device_address(devlist[i]);
	247
	248	is_opened = TRUE;
	249
	250	break;
	251	}
	252
	253	libusb_free_device_list(devlist, 1);
	254
	255	if (!is_opened)
	256	return SR_ERR;
	257
	258	if ((r = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) {
	259	sr_err("Failed to claim interface: %s.",
	260	libusb_error_name(r));
	261	return SR_ERR;
	262	}
263
264	sdi->status = SR_ST_ACTIVE;
265
266	return SR_OK;
267	}
268
269	static int dev_open(struct sr_dev_inst *sdi)
270	{
271	struct drv_context *drvc;
272	struct dev_context *devc;
273	int64_t timediff_us, timediff_ms;
274	int ret;
275
276	drvc = sdi->driver->context;
277	devc = sdi->priv;
278
279	if (!drvc) {
280	sr_err("Driver was not initialized.");
281	return SR_ERR;
282	}
283
284	/*
285	* If we didn't need to upload FX2 firmware in scan(), open the device
286	* right away. Otherwise, wait up to MAX_RENUM_DELAY_MS ms for the
287	* FX2 to renumerate.
288	*/
289	if (!devc->fw_updated) {
290	ret = open_device(sdi);
291	} else {
292	sr_info("Waiting for device to reset.");
293
294	/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
295	g_usleep(300 * 1000);
296	timediff_ms = 0;
297
298	while (timediff_ms < MAX_RENUM_DELAY_MS) {
299	ret = open_device(sdi);
300
301	if (ret == SR_OK)
302	break;
303
304	g_usleep(100 * 1000);
305
306	timediff_us = g_get_monotonic_time() - devc->fw_updated;
307	timediff_ms = timediff_us / 1000;
308
309	sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
310	}
311
312	if (ret != SR_OK) {
313	sr_err("Device failed to renumerate.");
314	return SR_ERR;
315	}
316
317	sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
318	}
319
320	if (ret != SR_OK) {
321	sr_err("Unable to open device.");
322	return ret;
323	}
324
325	/*
326	* Only allocate the sample buffer now since it's rather large.
327	* Don't want to allocate it before we know we are going to use it.
328	*/
329	devc->fetched_samples = g_malloc(SAMPLE_BUF_SIZE);
330
331	devc->conv8to16 = g_malloc(CONV_8TO16_BUF_SIZE);
332
333	devc->intr_xfer = libusb_alloc_transfer(0);
334	devc->bulk_xfer = libusb_alloc_transfer(0);
335
336	return SR_OK;
337	}
338
339	static int dev_close(struct sr_dev_inst *sdi)
340	{
341	struct sr_usb_dev_inst *usb;
342	struct dev_context *devc;
343
344	usb = sdi->conn;
345	devc = sdi->priv;
346
347	g_free(devc->fetched_samples);
348	devc->fetched_samples = NULL;
349
350	g_free(devc->conv8to16);
351	devc->conv8to16 = NULL;
352
353	if (devc->intr_xfer) {
354	devc->intr_xfer->buffer = NULL; /* Points into devc. */
355	libusb_free_transfer(devc->intr_xfer);
356	devc->intr_xfer = NULL;
357	}
358
359	if (devc->bulk_xfer) {
360	devc->bulk_xfer->buffer = NULL; /* Points into devc. */
361	libusb_free_transfer(devc->bulk_xfer);
362	devc->bulk_xfer = NULL;
363	}
364
365	if (!usb->devhdl)
366	return SR_ERR;
367
368	libusb_release_interface(usb->devhdl, 0);
369
370	libusb_close(usb->devhdl);
371	usb->devhdl = NULL;
372
373	sdi->status = SR_ST_INACTIVE;
374
375	return SR_OK;
376	}
377
c7b17bcb TS	378	static int config_get(uint32_t key, GVariant **data,
	379	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	380	{
	381	struct dev_context *devc;
	382
	383	(void)cg;
	384
	385	if (!sdi)
	386	return SR_ERR_ARG;
	387
	388	devc = sdi->priv;
	389
	390	switch (key) {
	391	case SR_CONF_SAMPLERATE:
	392	*data = g_variant_new_uint64(lls_get_samplerate(sdi));
	393	break;
	394	case SR_CONF_CAPTURE_RATIO:
	395	*data = g_variant_new_uint64(devc->capture_ratio);
	396	break;
	397	default:
	398	return SR_ERR_NA;
	399	}
	400
	401	return SR_OK;
	402	}
	403
	404	static int config_set(uint32_t key, GVariant *data,
	405	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	406	{
	407	struct dev_context *devc;
	408
	409	(void)cg;
	410
	411	if (!sdi)
	412	return SR_ERR_ARG;
	413
	414	devc = sdi->priv;
	415
	416	if (sdi->status != SR_ST_ACTIVE)
	417	return SR_ERR_DEV_CLOSED;
	418
	419	switch (key) {
	420	case SR_CONF_SAMPLERATE:
	421	return lls_set_samplerate(sdi, g_variant_get_uint64(data));
	422	case SR_CONF_CAPTURE_RATIO:
	423	devc->capture_ratio = g_variant_get_uint64(data);
	424	if (devc->capture_ratio > 100)
	425	return SR_ERR;
	426	break;
	427	default:
	428	return SR_ERR_NA;
	429	}
	430
	431	return SR_OK;
	432	}
	433
	434	static int config_list(uint32_t key, GVariant **data,
	435	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	436	{
	437	GVariantBuilder vb;
	438	GVariant *var;
	439
	440	(void)sdi;
	441	(void)cg;
442
443	switch (key) {
444	case SR_CONF_DEVICE_OPTIONS:
445	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
446	devopts, ARRAY_SIZE(devopts),
447	sizeof(uint32_t));
448	break;
449	case SR_CONF_SAMPLERATE:
450	g_variant_builder_init(&vb, G_VARIANT_TYPE("a{sv}"));
451	var = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
452	samplerates, ARRAY_SIZE(samplerates),
453	sizeof(uint64_t));
454	g_variant_builder_add(&vb, "{sv}", "samplerates", var);
455	*data = g_variant_builder_end(&vb);
456	break;
457	case SR_CONF_TRIGGER_MATCH:
458	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
459	trigger_matches, ARRAY_SIZE(trigger_matches),
460	sizeof(int32_t));
461	break;
462	default:
463	return SR_ERR_NA;
464	}
465
466	return SR_OK;
467	}
468
469	static int config_commit(const struct sr_dev_inst *sdi)
470	{
471	return lls_setup_acquisition(sdi);
472	}
473
474	static int receive_usb_data(int fd, int revents, void *cb_data)
475	{
476	struct drv_context *drvc;
477	struct timeval tv;
478
479	(void)fd;
480	(void)revents;
481
695dc859	482	drvc = (struct drv_context *)cb_data;
c7b17bcb TS	483
	484	tv.tv_sec = 0;
	485	tv.tv_usec = 0;
	486
	487	libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx,
	488	&tv, NULL);
	489
	490	return TRUE;
	491	}
	492
695dc859	493	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
c7b17bcb TS	494	{
	495	struct drv_context *drvc;
	496	int ret;
	497
	498	if (sdi->status != SR_ST_ACTIVE)
	499	return SR_ERR_DEV_CLOSED;
	500
	501	drvc = sdi->driver->context;
	502
	503	if ((ret = lls_start_acquisition(sdi)) < 0)
	504	return ret;
	505
695dc859	506	std_session_send_df_header(sdi, LOG_PREFIX);
c7b17bcb TS	507
	508	return usb_source_add(sdi->session, drvc->sr_ctx, 100,
	509	receive_usb_data, drvc);
	510	}
	511
695dc859	512	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
c7b17bcb	513	{
c7b17bcb TS	514	if (sdi->status != SR_ST_ACTIVE)
	515	return SR_ERR_DEV_CLOSED;
	516
	517	return lls_stop_acquisition(sdi);
	518	}
	519
	520	SR_PRIV struct sr_dev_driver lecroy_logicstudio_driver_info = {
	521	.name = "lecroy-logicstudio",
	522	.longname = "LeCroy LogicStudio",
	523	.api_version = 1,
	524	.init = init,
700d6b64	525	.cleanup = std_cleanup,
c7b17bcb TS	526	.scan = scan,
c7b17bcb TS	527	.dev_list = dev_list,
c7b17bcb TS	528	.config_get = config_get,
	529	.config_set = config_set,
	530	.config_list = config_list,
	531	.config_commit = config_commit,
	532	.dev_open = dev_open,
	533	.dev_close = dev_close,
	534	.dev_acquisition_start = dev_acquisition_start,
	535	.dev_acquisition_stop = dev_acquisition_stop,
	536	.context = NULL,
	537	};