[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 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 = std_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
c7b17bcb TS	194	static int open_device(struct sr_dev_inst *sdi)
	195	{
	196	struct drv_context *drvc;
	197	struct sr_usb_dev_inst *usb;
	198	struct libusb_device_descriptor des;
	199	libusb_device **devlist;
	200	char connection_id[64];
	201	bool is_opened;
	202	size_t i;
	203	int r;
	204
	205	if (sdi->status == SR_ST_ACTIVE)
	206	return SR_ERR;
	207
	208	drvc = sdi->driver->context;
	209	usb = sdi->conn;
	210
	211	is_opened = FALSE;
	212
	213	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
	214
	215	for (i = 0; devlist[i]; i++) {
	216	libusb_get_device_descriptor(devlist[i], &des);
	217
	218	if (des.idVendor != LOGICSTUDIO16_VID \|\|
	219	des.idProduct != LOGICSTUDIO16_PID_HAVE_FIRMWARE)
	220	continue;
	221
	222	usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
	223
	224	/*
	225	* Check if this device is the same one that we associated
	226	* with this sdi in scan() and bail if it isn't.
	227	*/
	228	if (strcmp(sdi->connection_id, connection_id))
	229	continue;
	230
	231	r = libusb_open(devlist[i], &usb->devhdl);
	232
	233	if (r) {
	234	sr_err("Failed to open device: %s.",
	235	libusb_error_name(r));
	236	break;
	237	}
	238
	239	/* Fix up address after firmware upload. */
	240	if (usb->address == UNKNOWN_ADDRESS)
	241	usb->address = libusb_get_device_address(devlist[i]);
	242
	243	is_opened = TRUE;
	244
	245	break;
	246	}
	247
	248	libusb_free_device_list(devlist, 1);
	249
	250	if (!is_opened)
	251	return SR_ERR;
	252
	253	if ((r = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) {
	254	sr_err("Failed to claim interface: %s.",
	255	libusb_error_name(r));
	256	return SR_ERR;
	257	}
258
259	sdi->status = SR_ST_ACTIVE;
260
261	return SR_OK;
262	}
263
264	static int dev_open(struct sr_dev_inst *sdi)
265	{
266	struct drv_context *drvc;
267	struct dev_context *devc;
268	int64_t timediff_us, timediff_ms;
269	int ret;
270
271	drvc = sdi->driver->context;
272	devc = sdi->priv;
273
274	if (!drvc) {
275	sr_err("Driver was not initialized.");
276	return SR_ERR;
277	}
278
279	/*
280	* If we didn't need to upload FX2 firmware in scan(), open the device
281	* right away. Otherwise, wait up to MAX_RENUM_DELAY_MS ms for the
282	* FX2 to renumerate.
283	*/
284	if (!devc->fw_updated) {
285	ret = open_device(sdi);
286	} else {
287	sr_info("Waiting for device to reset.");
288
289	/* Takes >= 300ms for the FX2 to be gone from the USB bus. */
290	g_usleep(300 * 1000);
291	timediff_ms = 0;
292
293	while (timediff_ms < MAX_RENUM_DELAY_MS) {
294	ret = open_device(sdi);
295
296	if (ret == SR_OK)
297	break;
298
299	g_usleep(100 * 1000);
300
301	timediff_us = g_get_monotonic_time() - devc->fw_updated;
302	timediff_ms = timediff_us / 1000;
303
304	sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
305	}
306
307	if (ret != SR_OK) {
308	sr_err("Device failed to renumerate.");
309	return SR_ERR;
310	}
311
312	sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
313	}
314
315	if (ret != SR_OK) {
316	sr_err("Unable to open device.");
317	return ret;
318	}
319
320	/*
321	* Only allocate the sample buffer now since it's rather large.
322	* Don't want to allocate it before we know we are going to use it.
323	*/
324	devc->fetched_samples = g_malloc(SAMPLE_BUF_SIZE);
325
326	devc->conv8to16 = g_malloc(CONV_8TO16_BUF_SIZE);
327
328	devc->intr_xfer = libusb_alloc_transfer(0);
329	devc->bulk_xfer = libusb_alloc_transfer(0);
330
331	return SR_OK;
332	}
333
334	static int dev_close(struct sr_dev_inst *sdi)
335	{
336	struct sr_usb_dev_inst *usb;
337	struct dev_context *devc;
338
339	usb = sdi->conn;
340	devc = sdi->priv;
341
342	g_free(devc->fetched_samples);
343	devc->fetched_samples = NULL;
344
345	g_free(devc->conv8to16);
346	devc->conv8to16 = NULL;
347
348	if (devc->intr_xfer) {
349	devc->intr_xfer->buffer = NULL; /* Points into devc. */
350	libusb_free_transfer(devc->intr_xfer);
351	devc->intr_xfer = NULL;
352	}
353
354	if (devc->bulk_xfer) {
355	devc->bulk_xfer->buffer = NULL; /* Points into devc. */
356	libusb_free_transfer(devc->bulk_xfer);
357	devc->bulk_xfer = NULL;
358	}
359
360	if (!usb->devhdl)
361	return SR_ERR;
362
363	libusb_release_interface(usb->devhdl, 0);
364
365	libusb_close(usb->devhdl);
366	usb->devhdl = NULL;
367
368	sdi->status = SR_ST_INACTIVE;
369
370	return SR_OK;
371	}
372
c7b17bcb TS	373	static int config_get(uint32_t key, GVariant **data,
	374	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	375	{
	376	struct dev_context *devc;
	377
	378	(void)cg;
	379
	380	if (!sdi)
	381	return SR_ERR_ARG;
	382
	383	devc = sdi->priv;
	384
	385	switch (key) {
	386	case SR_CONF_SAMPLERATE:
	387	*data = g_variant_new_uint64(lls_get_samplerate(sdi));
	388	break;
	389	case SR_CONF_CAPTURE_RATIO:
	390	*data = g_variant_new_uint64(devc->capture_ratio);
	391	break;
	392	default:
	393	return SR_ERR_NA;
	394	}
	395
	396	return SR_OK;
	397	}
	398
	399	static int config_set(uint32_t key, GVariant *data,
	400	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	401	{
	402	struct dev_context *devc;
	403
	404	(void)cg;
	405
	406	if (!sdi)
	407	return SR_ERR_ARG;
	408
	409	devc = sdi->priv;
	410
	411	if (sdi->status != SR_ST_ACTIVE)
	412	return SR_ERR_DEV_CLOSED;
	413
	414	switch (key) {
	415	case SR_CONF_SAMPLERATE:
	416	return lls_set_samplerate(sdi, g_variant_get_uint64(data));
	417	case SR_CONF_CAPTURE_RATIO:
	418	devc->capture_ratio = g_variant_get_uint64(data);
	419	if (devc->capture_ratio > 100)
	420	return SR_ERR;
	421	break;
	422	default:
	423	return SR_ERR_NA;
	424	}
	425
	426	return SR_OK;
	427	}
	428
	429	static int config_list(uint32_t key, GVariant **data,
	430	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	431	{
	432	GVariantBuilder vb;
	433	GVariant *var;
	434
	435	(void)sdi;
	436	(void)cg;
437
438	switch (key) {
439	case SR_CONF_DEVICE_OPTIONS:
440	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
441	devopts, ARRAY_SIZE(devopts),
442	sizeof(uint32_t));
443	break;
444	case SR_CONF_SAMPLERATE:
445	g_variant_builder_init(&vb, G_VARIANT_TYPE("a{sv}"));
446	var = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
447	samplerates, ARRAY_SIZE(samplerates),
448	sizeof(uint64_t));
449	g_variant_builder_add(&vb, "{sv}", "samplerates", var);
450	*data = g_variant_builder_end(&vb);
451	break;
452	case SR_CONF_TRIGGER_MATCH:
453	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
454	trigger_matches, ARRAY_SIZE(trigger_matches),
455	sizeof(int32_t));
456	break;
457	default:
458	return SR_ERR_NA;
459	}
460
461	return SR_OK;
462	}
463
464	static int config_commit(const struct sr_dev_inst *sdi)
465	{
466	return lls_setup_acquisition(sdi);
467	}
468
469	static int receive_usb_data(int fd, int revents, void *cb_data)
470	{
471	struct drv_context *drvc;
472	struct timeval tv;
473
474	(void)fd;
475	(void)revents;
476
695dc859	477	drvc = (struct drv_context *)cb_data;
c7b17bcb TS	478
	479	tv.tv_sec = 0;
	480	tv.tv_usec = 0;
	481
	482	libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx,
	483	&tv, NULL);
	484
	485	return TRUE;
	486	}
	487
695dc859	488	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
c7b17bcb TS	489	{
	490	struct drv_context *drvc;
	491	int ret;
	492
	493	if (sdi->status != SR_ST_ACTIVE)
	494	return SR_ERR_DEV_CLOSED;
	495
	496	drvc = sdi->driver->context;
	497
	498	if ((ret = lls_start_acquisition(sdi)) < 0)
	499	return ret;
	500
695dc859	501	std_session_send_df_header(sdi, LOG_PREFIX);
c7b17bcb TS	502
	503	return usb_source_add(sdi->session, drvc->sr_ctx, 100,
	504	receive_usb_data, drvc);
	505	}
	506
695dc859	507	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
c7b17bcb	508	{
c7b17bcb TS	509	if (sdi->status != SR_ST_ACTIVE)
	510	return SR_ERR_DEV_CLOSED;
	511
	512	return lls_stop_acquisition(sdi);
	513	}
	514
	515	SR_PRIV struct sr_dev_driver lecroy_logicstudio_driver_info = {
	516	.name = "lecroy-logicstudio",
	517	.longname = "LeCroy LogicStudio",
	518	.api_version = 1,
	519	.init = init,
700d6b64	520	.cleanup = std_cleanup,
c7b17bcb	521	.scan = scan,
c01bf34c	522	.dev_list = std_dev_list,
c7b17bcb TS	523	.config_get = config_get,
	524	.config_set = config_set,
	525	.config_list = config_list,
	526	.config_commit = config_commit,
	527	.dev_open = dev_open,
	528	.dev_close = dev_close,
	529	.dev_acquisition_start = dev_acquisition_start,
	530	.dev_acquisition_stop = dev_acquisition_stop,
	531	.context = NULL,
	532	};