src/hardware/demo/protocol.c \
src/hardware/demo/api.c
endif
-if HW_DSLOGIC
+if HW_DREAMSOURCELAB_DSLOGIC
src_libdrivers_la_SOURCES += \
- src/hardware/dslogic/protocol.h \
- src/hardware/dslogic/protocol.c \
- src/hardware/dslogic/api.c
+ src/hardware/dreamsourcelab-dslogic/protocol.h \
+ src/hardware/dreamsourcelab-dslogic/protocol.c \
+ src/hardware/dreamsourcelab-dslogic/api.c
endif
if HW_FLUKE_DMM
src_libdrivers_la_SOURCES += \
SR_DRIVER([Colead SLM], [colead-slm], [libserialport])
SR_DRIVER([Conrad DIGI 35 CPU], [conrad-digi-35-cpu], [libserialport])
SR_DRIVER([demo], [demo])
-SR_DRIVER([DreamSourceLabs], [DSLogic], [libusb])
+SR_DRIVER([DreamSourceLab DSLogic], [dreamsourcelab-dslogic], [libusb])
SR_DRIVER([Fluke DMM], [fluke-dmm], [libserialport])
SR_DRIVER([FTDI LA], [ftdi-la], [libusb libftdi])
SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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 <math.h>
+#include "protocol.h"
+
+static const struct dslogic_profile supported_device[] = {
+ /* DreamSourceLab DSLogic */
+ { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
+ "dreamsourcelab-dslogic-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic", 256 * 1024 * 1024},
+ /* DreamSourceLab DSCope */
+ { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
+ "dreamsourcelab-dscope-fx2.fw",
+ 0, "DreamSourceLab", "DSCope", 256 * 1024 * 1024},
+ /* DreamSourceLab DSLogic Pro */
+ { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
+ "dreamsourcelab-dslogic-pro-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic", 256 * 1024 * 1024},
+ /* DreamSourceLab DSLogic Plus */
+ { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL,
+ "dreamsourcelab-dslogic-plus-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic", 256 * 1024 * 1024},
+ /* DreamSourceLab DSLogic Basic */
+ { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL,
+ "dreamsourcelab-dslogic-basic-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic", 256 * 1024},
+
+ ALL_ZERO
+};
+
+static const uint32_t drvopts[] = {
+ SR_CONF_LOGIC_ANALYZER,
+};
+
+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+};
+
+static const uint32_t devopts[] = {
+ SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_CONN | SR_CONF_GET,
+ SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
+ SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+};
+
+/* Names assigned to available edge slope choices. */
+static const char *const signal_edge_names[] = {
+ [DS_EDGE_RISING] = "rising",
+ [DS_EDGE_FALLING] = "falling",
+};
+
+static const struct {
+ gdouble low;
+ gdouble high;
+} dslogic_voltage_thresholds[] = {
+ { 0.7, 1.4 },
+ { 1.4, 3.6 },
+};
+
+static const uint64_t samplerates[] = {
+ SR_KHZ(10),
+ SR_KHZ(20),
+ SR_KHZ(50),
+ SR_KHZ(100),
+ SR_KHZ(200),
+ SR_KHZ(500),
+ SR_MHZ(1),
+ SR_MHZ(2),
+ SR_MHZ(5),
+ SR_MHZ(10),
+ SR_MHZ(20),
+ SR_MHZ(25),
+ SR_MHZ(50),
+ SR_MHZ(100),
+ SR_MHZ(200),
+ SR_MHZ(400),
+};
+
+static gboolean is_plausible(const struct libusb_device_descriptor *des)
+{
+ int i;
+
+ for (i = 0; supported_device[i].vid; i++) {
+ if (des->idVendor != supported_device[i].vid)
+ continue;
+ if (des->idProduct == supported_device[i].pid)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
+{
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ struct sr_usb_dev_inst *usb;
+ struct sr_channel *ch;
+ struct sr_channel_group *cg;
+ struct sr_config *src;
+ const struct dslogic_profile *prof;
+ GSList *l, *devices, *conn_devices;
+ gboolean has_firmware;
+ struct libusb_device_descriptor des;
+ libusb_device **devlist;
+ struct libusb_device_handle *hdl;
+ int ret, i, j;
+ const char *conn;
+ char manufacturer[64], product[64], serial_num[64], connection_id[64];
+ char channel_name[16];
+
+ drvc = di->context;
+
+ conn = NULL;
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ switch (src->key) {
+ case SR_CONF_CONN:
+ conn = g_variant_get_string(src->data, NULL);
+ break;
+ }
+ }
+ if (conn)
+ conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
+ else
+ conn_devices = NULL;
+
+ /* Find all DSLogic compatible devices and upload firmware to them. */
+ devices = NULL;
+ libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ for (i = 0; devlist[i]; i++) {
+ if (conn) {
+ usb = NULL;
+ for (l = conn_devices; l; l = l->next) {
+ usb = l->data;
+ if (usb->bus == libusb_get_bus_number(devlist[i])
+ && usb->address == libusb_get_device_address(devlist[i]))
+ break;
+ }
+ if (!l)
+ /* This device matched none of the ones that
+ * matched the conn specification. */
+ continue;
+ }
+
+ libusb_get_device_descriptor(devlist[i], &des);
+
+ if (!is_plausible(&des))
+ continue;
+
+ if ((ret = libusb_open(devlist[i], &hdl)) < 0) {
+ sr_warn("Failed to open potential device with "
+ "VID:PID %04x:%04x: %s.", des.idVendor,
+ des.idProduct, libusb_error_name(ret));
+ continue;
+ }
+
+ if (des.iManufacturer == 0) {
+ manufacturer[0] = '\0';
+ } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
+ des.iManufacturer, (unsigned char *) manufacturer,
+ sizeof(manufacturer))) < 0) {
+ sr_warn("Failed to get manufacturer string descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ if (des.iProduct == 0) {
+ product[0] = '\0';
+ } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
+ des.iProduct, (unsigned char *) product,
+ sizeof(product))) < 0) {
+ sr_warn("Failed to get product string descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ if (des.iSerialNumber == 0) {
+ serial_num[0] = '\0';
+ } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
+ des.iSerialNumber, (unsigned char *) serial_num,
+ sizeof(serial_num))) < 0) {
+ sr_warn("Failed to get serial number string descriptor: %s.",
+ libusb_error_name(ret));
+ continue;
+ }
+
+ usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
+
+ libusb_close(hdl);
+
+ prof = NULL;
+ for (j = 0; supported_device[j].vid; j++) {
+ if (des.idVendor == supported_device[j].vid &&
+ des.idProduct == supported_device[j].pid &&
+ (!strcmp(manufacturer, supported_device[j].usb_manufacturer)) &&
+ (!strcmp(product, "USB-based Instrument") ||
+ !strcmp(product, supported_device[j].usb_product))) {
+ prof = &supported_device[j];
+ break;
+ }
+ }
+
+ /* Skip if the device was not found. */
+ if (!prof)
+ continue;
+
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INITIALIZING;
+ sdi->vendor = g_strdup(prof->vendor);
+ sdi->model = g_strdup(prof->model);
+ sdi->version = g_strdup(prof->model_version);
+ sdi->serial_num = g_strdup(serial_num);
+ sdi->connection_id = g_strdup(connection_id);
+
+ /* Logic channels, all in one channel group. */
+ cg = g_malloc0(sizeof(struct sr_channel_group));
+ cg->name = g_strdup("Logic");
+ for (j = 0; j < 16; j++) {
+ sprintf(channel_name, "%d", j);
+ ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
+ TRUE, channel_name);
+ cg->channels = g_slist_append(cg->channels, ch);
+ }
+ sdi->channel_groups = g_slist_append(NULL, cg);
+
+ devc = dslogic_dev_new();
+ devc->profile = prof;
+ sdi->priv = devc;
+ devices = g_slist_append(devices, sdi);
+
+ devc->samplerates = samplerates;
+ devc->num_samplerates = ARRAY_SIZE(samplerates);
+ has_firmware = usb_match_manuf_prod(devlist[i], "DreamSourceLab", "USB-based Instrument");
+
+ if (has_firmware) {
+ /* Already has the firmware, so fix the new address. */
+ sr_dbg("Found a DSLogic device.");
+ sdi->status = SR_ST_INACTIVE;
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
+ libusb_get_device_address(devlist[i]), NULL);
+ } else {
+ if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
+ USB_CONFIGURATION, prof->firmware) == SR_OK)
+ /* Store when this device's FW was updated. */
+ devc->fw_updated = g_get_monotonic_time();
+ else
+ sr_err("Firmware upload failed for "
+ "device %d.%d (logical).",
+ libusb_get_bus_number(devlist[i]),
+ libusb_get_device_address(devlist[i]));
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
+ 0xff, NULL);
+ }
+ }
+ libusb_free_device_list(devlist, 1);
+ g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
+
+ return std_scan_complete(di, devices);
+}
+
+static void clear_dev_context(void *priv)
+{
+ struct dev_context *devc;
+
+ devc = priv;
+ g_free(devc);
+}
+
+static int dev_clear(const struct sr_dev_driver *di)
+{
+ return std_dev_clear(di, clear_dev_context);
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct sr_dev_driver *di = sdi->driver;
+ struct sr_usb_dev_inst *usb;
+ struct dev_context *devc;
+ int ret;
+ int64_t timediff_us, timediff_ms;
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ /*
+ * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
+ * milliseconds for the FX2 to renumerate.
+ */
+ ret = SR_ERR;
+ if (devc->fw_updated > 0) {
+ 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) {
+ if ((ret = dslogic_dev_open(sdi, di)) == 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);
+ } else {
+ sr_info("Firmware upload was not needed.");
+ ret = dslogic_dev_open(sdi, di);
+ }
+
+ if (ret != SR_OK) {
+ sr_err("Unable to open device.");
+ return SR_ERR;
+ }
+
+ ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
+ if (ret != 0) {
+ switch (ret) {
+ case LIBUSB_ERROR_BUSY:
+ sr_err("Unable to claim USB interface. Another "
+ "program or driver has already claimed it.");
+ break;
+ case LIBUSB_ERROR_NO_DEVICE:
+ sr_err("Device has been disconnected.");
+ break;
+ default:
+ sr_err("Unable to claim interface: %s.",
+ libusb_error_name(ret));
+ break;
+ }
+
+ return SR_ERR;
+ }
+
+
+ if ((ret = dslogic_fpga_firmware_upload(sdi)) != SR_OK)
+ return ret;
+
+ if (devc->cur_samplerate == 0) {
+ /* Samplerate hasn't been set; default to the slowest one. */
+ devc->cur_samplerate = devc->samplerates[0];
+ }
+
+ if (devc->cur_threshold == 0.0)
+ devc->cur_threshold = 1.5;
+
+ return SR_OK;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+
+ usb = sdi->conn;
+
+ if (!usb->devhdl)
+ return SR_ERR;
+
+ sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.",
+ usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
+ libusb_release_interface(usb->devhdl, USB_INTERFACE);
+ 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;
+ struct sr_usb_dev_inst *usb;
+ GVariant *range[2];
+ unsigned int i, voltage_range;
+ char str[128];
+
+ (void)cg;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+
+ switch (key) {
+ case SR_CONF_CONN:
+ if (!sdi->conn)
+ return SR_ERR_ARG;
+ usb = sdi->conn;
+ if (usb->address == 255)
+ /* Device still needs to re-enumerate after firmware
+ * upload, so we don't know its (future) address. */
+ return SR_ERR;
+ snprintf(str, 128, "%d.%d", usb->bus, usb->address);
+ *data = g_variant_new_string(str);
+ break;
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ if (!strcmp(devc->profile->model, "DSLogic")) {
+ voltage_range = 0;
+
+ for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++)
+ if (dslogic_voltage_thresholds[i].low ==
+ devc->cur_threshold) {
+ voltage_range = i;
+ break;
+ }
+
+ range[0] = g_variant_new_double(
+ dslogic_voltage_thresholds[voltage_range].low);
+ range[1] = g_variant_new_double(
+ dslogic_voltage_thresholds[voltage_range].high);
+ } else {
+ range[0] = g_variant_new_double(devc->cur_threshold);
+ range[1] = g_variant_new_double(devc->cur_threshold);
+ }
+ *data = g_variant_new_tuple(range, 2);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->cur_samplerate);
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ *data = g_variant_new_uint64(devc->capture_ratio);
+ break;
+ case SR_CONF_EXTERNAL_CLOCK:
+ *data = g_variant_new_boolean(devc->external_clock);
+ break;
+ case SR_CONF_CONTINUOUS:
+ *data = g_variant_new_boolean(devc->continuous_mode);
+ break;
+ case SR_CONF_CLOCK_EDGE:
+ i = devc->clock_edge;
+ if (i >= ARRAY_SIZE(signal_edge_names))
+ return SR_ERR_BUG;
+ *data = g_variant_new_string(signal_edge_names[0]);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+/*
+ * Helper for mapping a string-typed configuration value to an index
+ * within a table of possible values.
+ */
+static int lookup_index(GVariant *value, const char *const *table, int len)
+{
+ const char *entry;
+ int i;
+
+ entry = g_variant_get_string(value, NULL);
+ if (!entry)
+ return -1;
+
+ /* Linear search is fine for very small tables. */
+ for (i = 0; i < len; i++) {
+ if (strcmp(entry, table[i]) == 0)
+ return i;
+ }
+
+ return -1;
+}
+
+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;
+ uint64_t arg;
+ int i, ret;
+ gdouble low, high;
+
+ (void)cg;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
+
+ devc = sdi->priv;
+
+ ret = SR_OK;
+
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ arg = g_variant_get_uint64(data);
+ for (i = 0; i < devc->num_samplerates; i++) {
+ if (devc->samplerates[i] == arg) {
+ devc->cur_samplerate = arg;
+ break;
+ }
+ }
+ if (i == devc->num_samplerates)
+ ret = SR_ERR_ARG;
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ devc->capture_ratio = g_variant_get_uint64(data);
+ ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
+ break;
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ g_variant_get(data, "(dd)", &low, &high);
+ if (!strcmp(devc->profile->model, "DSLogic")) {
+ for (i = 0; (unsigned int)i <
+ ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
+ if (fabs(dslogic_voltage_thresholds[i].low - low) < 0.1 &&
+ fabs(dslogic_voltage_thresholds[i].high - high) < 0.1) {
+ devc->cur_threshold =
+ dslogic_voltage_thresholds[i].low;
+ break;
+ }
+ }
+ ret = dslogic_fpga_firmware_upload(sdi);
+ } else {
+ ret = dslogic_set_voltage_threshold(sdi, (low + high) / 2.0);
+ }
+ break;
+ case SR_CONF_EXTERNAL_CLOCK:
+ devc->external_clock = g_variant_get_boolean(data);
+ break;
+ case SR_CONF_CONTINUOUS:
+ devc->continuous_mode = g_variant_get_boolean(data);
+ break;
+ case SR_CONF_CLOCK_EDGE:
+ i = lookup_index(data, signal_edge_names,
+ ARRAY_SIZE(signal_edge_names));
+ if (i < 0)
+ return SR_ERR_ARG;
+ devc->clock_edge = i;
+ break;
+ default:
+ ret = SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int config_list(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+{
+ struct dev_context *devc = NULL;
+ GVariant *gvar, *range[2];
+ GVariantBuilder gvb;
+ unsigned int i;
+ double v;
+
+ (void)cg;
+
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ if (!sdi) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
+ } else {
+ devc = sdi->priv;
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
+ }
+ break;
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ if (sdi->priv)
+ devc = sdi->priv;
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ if (devc && !strcmp(devc->profile->model, "DSLogic")) {
+ for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
+ range[0] = g_variant_new_double(dslogic_voltage_thresholds[i].low);
+ range[1] = g_variant_new_double(dslogic_voltage_thresholds[i].high);
+ gvar = g_variant_new_tuple(range, 2);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ } else {
+ for (v = 0.0; v <= 5.0; v += 0.1) {
+ range[0] = g_variant_new_double(v);
+ range[1] = g_variant_new_double(v);
+ gvar = g_variant_new_tuple(range, 2);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_SAMPLERATE:
+ devc = sdi->priv;
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
+ devc->num_samplerates, sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_CLOCK_EDGE:
+ *data = g_variant_new_strv(signal_edge_names,
+ ARRAY_SIZE(signal_edge_names));
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
+}
+
+static struct sr_dev_driver dreamsourcelab_dslogic_driver_info = {
+ .name = "dreamsourcelab-dslogic",
+ .longname = "DreamSourceLab DSLogic",
+ .api_version = 1,
+ .init = std_init,
+ .cleanup = std_cleanup,
+ .scan = scan,
+ .dev_list = std_dev_list,
+ .dev_clear = dev_clear,
+ .config_get = config_get,
+ .config_set = config_set,
+ .config_list = config_list,
+ .dev_open = dev_open,
+ .dev_close = dev_close,
+ .dev_acquisition_start = dslogic_acquisition_start,
+ .dev_acquisition_stop = dslogic_acquisition_stop,
+ .context = NULL,
+};
+SR_REGISTER_DEV_DRIVER(dreamsourcelab_dslogic_driver_info);
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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 <assert.h>
+#include <math.h>
+#include <glib.h>
+#include <glib/gstdio.h>
+#include "protocol.h"
+
+#define DS_CMD_GET_FW_VERSION 0xb0
+#define DS_CMD_GET_REVID_VERSION 0xb1
+#define DS_CMD_START 0xb2
+#define DS_CMD_CONFIG 0xb3
+#define DS_CMD_SETTING 0xb4
+#define DS_CMD_CONTROL 0xb5
+#define DS_CMD_STATUS 0xb6
+#define DS_CMD_STATUS_INFO 0xb7
+#define DS_CMD_WR_REG 0xb8
+#define DS_CMD_WR_NVM 0xb9
+#define DS_CMD_RD_NVM 0xba
+#define DS_CMD_RD_NVM_PRE 0xbb
+#define DS_CMD_GET_HW_INFO 0xbc
+
+#define DS_START_FLAGS_STOP (1 << 7)
+#define DS_START_FLAGS_CLK_48MHZ (1 << 6)
+#define DS_START_FLAGS_SAMPLE_WIDE (1 << 5)
+#define DS_START_FLAGS_MODE_LA (1 << 4)
+
+#define DS_ADDR_COMB 0x68
+#define DS_ADDR_EEWP 0x70
+#define DS_ADDR_VTH 0x78
+
+#define DS_MAX_LOGIC_DEPTH SR_MHZ(16)
+#define DS_MAX_LOGIC_SAMPLERATE SR_MHZ(100)
+#define DS_MAX_TRIG_PERCENT 90
+
+#define DS_MODE_TRIG_EN (1 << 0)
+#define DS_MODE_CLK_TYPE (1 << 1)
+#define DS_MODE_CLK_EDGE (1 << 2)
+#define DS_MODE_RLE_MODE (1 << 3)
+#define DS_MODE_DSO_MODE (1 << 4)
+#define DS_MODE_HALF_MODE (1 << 5)
+#define DS_MODE_QUAR_MODE (1 << 6)
+#define DS_MODE_ANALOG_MODE (1 << 7)
+#define DS_MODE_FILTER (1 << 8)
+#define DS_MODE_INSTANT (1 << 9)
+#define DS_MODE_STRIG_MODE (1 << 11)
+#define DS_MODE_STREAM_MODE (1 << 12)
+#define DS_MODE_LPB_TEST (1 << 13)
+#define DS_MODE_EXT_TEST (1 << 14)
+#define DS_MODE_INT_TEST (1 << 15)
+
+#define DSLOGIC_ATOMIC_SAMPLES (sizeof(uint64_t) * 8)
+#define DSLOGIC_ATOMIC_BYTES sizeof(uint64_t)
+
+/*
+ * The FPGA is configured with TLV tuples. Length is specified as the
+ * number of 16-bit words.
+ */
+#define _DS_CFG(variable, wordcnt) ((variable << 8) | wordcnt)
+#define DS_CFG_START 0xf5a5f5a5
+#define DS_CFG_MODE _DS_CFG(0, 1)
+#define DS_CFG_DIVIDER _DS_CFG(1, 2)
+#define DS_CFG_COUNT _DS_CFG(3, 2)
+#define DS_CFG_TRIG_POS _DS_CFG(5, 2)
+#define DS_CFG_TRIG_GLB _DS_CFG(7, 1)
+#define DS_CFG_CH_EN _DS_CFG(8, 1)
+#define DS_CFG_TRIG _DS_CFG(64, 160)
+#define DS_CFG_END 0xfa5afa5a
+
+#pragma pack(push, 1)
+
+struct version_info {
+ uint8_t major;
+ uint8_t minor;
+};
+
+struct cmd_start_acquisition {
+ uint8_t flags;
+ uint8_t sample_delay_h;
+ uint8_t sample_delay_l;
+};
+
+struct dslogic_fpga_config {
+ uint32_t sync;
+
+ uint16_t mode_header;
+ uint16_t mode;
+ uint16_t divider_header;
+ uint32_t divider;
+ uint16_t count_header;
+ uint32_t count;
+ uint16_t trig_pos_header;
+ uint32_t trig_pos;
+ uint16_t trig_glb_header;
+ uint16_t trig_glb;
+ uint16_t ch_en_header;
+ uint16_t ch_en;
+
+ uint16_t trig_header;
+ uint16_t trig_mask0[NUM_TRIGGER_STAGES];
+ uint16_t trig_mask1[NUM_TRIGGER_STAGES];
+ uint16_t trig_value0[NUM_TRIGGER_STAGES];
+ uint16_t trig_value1[NUM_TRIGGER_STAGES];
+ uint16_t trig_edge0[NUM_TRIGGER_STAGES];
+ uint16_t trig_edge1[NUM_TRIGGER_STAGES];
+ uint16_t trig_logic0[NUM_TRIGGER_STAGES];
+ uint16_t trig_logic1[NUM_TRIGGER_STAGES];
+ uint32_t trig_count[NUM_TRIGGER_STAGES];
+
+ uint32_t end_sync;
+};
+
+#pragma pack(pop)
+
+/*
+ * This should be larger than the FPGA bitstream image so that it'll get
+ * uploaded in one big operation. There seem to be issues when uploading
+ * it in chunks.
+ */
+#define FW_BUFSIZE (1024 * 1024)
+
+#define FPGA_UPLOAD_DELAY (10 * 1000)
+
+#define USB_TIMEOUT (3 * 1000)
+
+static int command_get_fw_version(libusb_device_handle *devhdl,
+ struct version_info *vi)
+{
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, DS_CMD_GET_FW_VERSION, 0x0000, 0x0000,
+ (unsigned char *)vi, sizeof(struct version_info), USB_TIMEOUT);
+
+ if (ret < 0) {
+ sr_err("Unable to get version info: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+static int command_get_revid_version(struct sr_dev_inst *sdi, uint8_t *revid)
+{
+ struct sr_usb_dev_inst *usb = sdi->conn;
+ libusb_device_handle *devhdl = usb->devhdl;
+ int ret;
+
+ ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_IN, DS_CMD_GET_REVID_VERSION, 0x0000, 0x0000,
+ revid, 1, USB_TIMEOUT);
+
+ if (ret < 0) {
+ sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+static int command_start_acquisition(const struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+ struct dslogic_mode mode;
+ int ret;
+
+ mode.flags = DS_START_FLAGS_MODE_LA | DS_START_FLAGS_SAMPLE_WIDE;
+ mode.sample_delay_h = mode.sample_delay_l = 0;
+
+ usb = sdi->conn;
+ ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
+ (unsigned char *)&mode, sizeof(mode), USB_TIMEOUT);
+ if (ret < 0) {
+ sr_err("Failed to send start command: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+static int command_stop_acquisition(const struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+ struct dslogic_mode mode;
+ int ret;
+
+ mode.flags = DS_START_FLAGS_STOP;
+ mode.sample_delay_h = mode.sample_delay_l = 0;
+
+ usb = sdi->conn;
+ ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
+ (unsigned char *)&mode, sizeof(struct dslogic_mode), USB_TIMEOUT);
+ if (ret < 0) {
+ sr_err("Failed to send stop command: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int dslogic_fpga_firmware_upload(const struct sr_dev_inst *sdi)
+{
+ const char *name = NULL;
+ uint64_t sum;
+ struct sr_resource bitstream;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ unsigned char *buf;
+ ssize_t chunksize;
+ int transferred;
+ int result, ret;
+ const uint8_t cmd[3] = {0, 0, 0};
+
+ drvc = sdi->driver->context;
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ if (!strcmp(devc->profile->model, "DSLogic")) {
+ if (devc->cur_threshold < 1.40)
+ name = DSLOGIC_FPGA_FIRMWARE_3V3;
+ else
+ name = DSLOGIC_FPGA_FIRMWARE_5V;
+ } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
+ name = DSLOGIC_PRO_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSLogic Plus")){
+ name = DSLOGIC_PLUS_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSLogic Basic")){
+ name = DSLOGIC_BASIC_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSCope")) {
+ name = DSCOPE_FPGA_FIRMWARE;
+ } else {
+ sr_err("Failed to select FPGA firmware.");
+ return SR_ERR;
+ }
+
+ sr_dbg("Uploading FPGA firmware '%s'.", name);
+
+ result = sr_resource_open(drvc->sr_ctx, &bitstream,
+ SR_RESOURCE_FIRMWARE, name);
+ if (result != SR_OK)
+ return result;
+
+ /* Tell the device firmware is coming. */
+ if ((ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_OUT, DS_CMD_CONFIG, 0x0000, 0x0000,
+ (unsigned char *)&cmd, sizeof(cmd), USB_TIMEOUT)) < 0) {
+ sr_err("Failed to upload FPGA firmware: %s.", libusb_error_name(ret));
+ sr_resource_close(drvc->sr_ctx, &bitstream);
+ return SR_ERR;
+ }
+
+ /* Give the FX2 time to get ready for FPGA firmware upload. */
+ g_usleep(FPGA_UPLOAD_DELAY);
+
+ buf = g_malloc(FW_BUFSIZE);
+ sum = 0;
+ result = SR_OK;
+ while (1) {
+ chunksize = sr_resource_read(drvc->sr_ctx, &bitstream,
+ buf, FW_BUFSIZE);
+ if (chunksize < 0)
+ result = SR_ERR;
+ if (chunksize <= 0)
+ break;
+
+ if ((ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
+ buf, chunksize, &transferred, USB_TIMEOUT)) < 0) {
+ sr_err("Unable to configure FPGA firmware: %s.",
+ libusb_error_name(ret));
+ result = SR_ERR;
+ break;
+ }
+ sum += transferred;
+ sr_spew("Uploaded %" PRIu64 "/%" PRIu64 " bytes.",
+ sum, bitstream.size);
+
+ if (transferred != chunksize) {
+ sr_err("Short transfer while uploading FPGA firmware.");
+ result = SR_ERR;
+ break;
+ }
+ }
+ g_free(buf);
+ sr_resource_close(drvc->sr_ctx, &bitstream);
+
+ if (result == SR_OK)
+ sr_dbg("FPGA firmware upload done.");
+
+ return result;
+}
+
+static unsigned int enabled_channel_count(const struct sr_dev_inst *sdi)
+{
+ unsigned int count = 0;
+ for (const GSList *l = sdi->channels; l; l = l->next) {
+ const struct sr_channel *const probe = (struct sr_channel *)l->data;
+ if (probe->enabled)
+ count++;
+ }
+ return count;
+}
+
+static uint16_t enabled_channel_mask(const struct sr_dev_inst *sdi)
+{
+ unsigned int mask = 0;
+ for (const GSList *l = sdi->channels; l; l = l->next) {
+ const struct sr_channel *const probe = (struct sr_channel *)l->data;
+ if (probe->enabled)
+ mask |= 1 << probe->index;
+ }
+ return mask;
+}
+
+/*
+ * Get the session trigger and configure the FPGA structure
+ * accordingly.
+ */
+static void set_trigger(const struct sr_dev_inst *sdi,
+ struct dslogic_fpga_config *cfg)
+{
+ struct sr_trigger *trigger;
+ struct sr_trigger_stage *stage;
+ struct sr_trigger_match *match;
+ struct dev_context *devc;
+ const GSList *l, *m;
+ const unsigned int num_enabled_channels = enabled_channel_count(sdi);
+ int num_trigger_stages = 0;
+
+ int channelbit, i = 0;
+ uint32_t trigger_point;
+
+ devc = sdi->priv;
+
+ cfg->ch_en = enabled_channel_mask(sdi);
+
+ cfg->trig_mask0[0] = 0xffff;
+ cfg->trig_mask1[0] = 0xffff;
+
+ cfg->trig_value0[0] = 0;
+ cfg->trig_value1[0] = 0;
+
+ cfg->trig_edge0[0] = 0;
+ cfg->trig_edge1[0] = 0;
+
+ cfg->trig_logic0[0] = 2;
+ cfg->trig_logic1[0] = 2;
+
+ cfg->trig_count[0] = 0;
+
+ cfg->trig_glb = num_enabled_channels << 4;
+
+ for (i = 1; i < NUM_TRIGGER_STAGES; i++) {
+ cfg->trig_mask0[i] = 0xffff;
+ cfg->trig_mask1[i] = 0xffff;
+ cfg->trig_value0[i] = 0;
+ cfg->trig_value1[i] = 0;
+ cfg->trig_edge0[i] = 0;
+ cfg->trig_edge1[i] = 0;
+ cfg->trig_logic0[i] = 2;
+ cfg->trig_logic1[i] = 2;
+ cfg->trig_count[i] = 0;
+ }
+
+ trigger_point = (devc->capture_ratio * devc->limit_samples) / 100;
+ if (trigger_point < DSLOGIC_ATOMIC_SAMPLES)
+ trigger_point = DSLOGIC_ATOMIC_SAMPLES;
+ const uint32_t mem_depth = devc->profile->mem_depth;
+ const uint32_t max_trigger_point = devc->continuous_mode ? ((mem_depth * 10) / 100) :
+ ((mem_depth * DS_MAX_TRIG_PERCENT) / 100);
+ if (trigger_point > max_trigger_point)
+ trigger_point = max_trigger_point;
+ cfg->trig_pos = trigger_point & ~(DSLOGIC_ATOMIC_SAMPLES - 1);
+
+ if (!(trigger = sr_session_trigger_get(sdi->session))) {
+ sr_dbg("No session trigger found");
+ return;
+ }
+
+ for (l = trigger->stages; l; l = l->next) {
+ stage = l->data;
+ num_trigger_stages++;
+ for (m = stage->matches; m; m = m->next) {
+ match = m->data;
+ if (!match->channel->enabled)
+ /* Ignore disabled channels with a trigger. */
+ continue;
+ channelbit = 1 << (match->channel->index);
+ /* Simple trigger support (event). */
+ if (match->match == SR_TRIGGER_ONE) {
+ cfg->trig_mask0[0] &= ~channelbit;
+ cfg->trig_mask1[0] &= ~channelbit;
+ cfg->trig_value0[0] |= channelbit;
+ cfg->trig_value1[0] |= channelbit;
+ } else if (match->match == SR_TRIGGER_ZERO) {
+ cfg->trig_mask0[0] &= ~channelbit;
+ cfg->trig_mask1[0] &= ~channelbit;
+ } else if (match->match == SR_TRIGGER_FALLING) {
+ cfg->trig_mask0[0] &= ~channelbit;
+ cfg->trig_mask1[0] &= ~channelbit;
+ cfg->trig_edge0[0] |= channelbit;
+ cfg->trig_edge1[0] |= channelbit;
+ } else if (match->match == SR_TRIGGER_RISING) {
+ cfg->trig_mask0[0] &= ~channelbit;
+ cfg->trig_mask1[0] &= ~channelbit;
+ cfg->trig_value0[0] |= channelbit;
+ cfg->trig_value1[0] |= channelbit;
+ cfg->trig_edge0[0] |= channelbit;
+ cfg->trig_edge1[0] |= channelbit;
+ } else if (match->match == SR_TRIGGER_EDGE) {
+ cfg->trig_edge0[0] |= channelbit;
+ cfg->trig_edge1[0] |= channelbit;
+ }
+ }
+ }
+
+ cfg->trig_glb |= num_trigger_stages;
+}
+
+static int fpga_configure(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ uint8_t c[3];
+ struct dslogic_fpga_config cfg;
+ uint16_t v16;
+ uint32_t v32;
+ int transferred, len, ret;
+
+ sr_dbg("Configuring FPGA.");
+
+ usb = sdi->conn;
+ devc = sdi->priv;
+
+ WL32(&cfg.sync, DS_CFG_START);
+ WL16(&cfg.mode_header, DS_CFG_MODE);
+ WL16(&cfg.divider_header, DS_CFG_DIVIDER);
+ WL16(&cfg.count_header, DS_CFG_COUNT);
+ WL16(&cfg.trig_pos_header, DS_CFG_TRIG_POS);
+ WL16(&cfg.trig_glb_header, DS_CFG_TRIG_GLB);
+ WL16(&cfg.ch_en_header, DS_CFG_CH_EN);
+ WL16(&cfg.trig_header, DS_CFG_TRIG);
+ WL32(&cfg.end_sync, DS_CFG_END);
+
+ /* Pass in the length of a fixed-size struct. Really. */
+ len = sizeof(struct dslogic_fpga_config) / 2;
+ c[0] = len & 0xff;
+ c[1] = (len >> 8) & 0xff;
+ c[2] = (len >> 16) & 0xff;
+
+ ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
+ LIBUSB_ENDPOINT_OUT, DS_CMD_SETTING, 0x0000, 0x0000,
+ c, sizeof(c), USB_TIMEOUT);
+ if (ret < 0) {
+ sr_err("Failed to send FPGA configure command: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ v16 = 0x0000;
+
+ if (devc->mode == DS_OP_INTERNAL_TEST)
+ v16 = DS_MODE_INT_TEST;
+ else if (devc->mode == DS_OP_EXTERNAL_TEST)
+ v16 = DS_MODE_EXT_TEST;
+ else if (devc->mode == DS_OP_LOOPBACK_TEST)
+ v16 = DS_MODE_LPB_TEST;
+
+ if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 2)
+ v16 |= DS_MODE_HALF_MODE;
+ else if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 4)
+ v16 |= DS_MODE_QUAR_MODE;
+
+ if (devc->continuous_mode)
+ v16 |= DS_MODE_STREAM_MODE;
+ if (devc->external_clock) {
+ v16 |= DS_MODE_CLK_TYPE;
+ if (devc->clock_edge == DS_EDGE_FALLING)
+ v16 |= DS_MODE_CLK_EDGE;
+ }
+ if (devc->limit_samples > DS_MAX_LOGIC_DEPTH *
+ ceil(devc->cur_samplerate * 1.0 / DS_MAX_LOGIC_SAMPLERATE)
+ && !devc->continuous_mode) {
+ /* Enable RLE for long captures.
+ * Without this, captured data present errors.
+ */
+ v16 |= DS_MODE_RLE_MODE;
+ }
+
+ WL16(&cfg.mode, v16);
+ v32 = ceil(DS_MAX_LOGIC_SAMPLERATE * 1.0 / devc->cur_samplerate);
+ WL32(&cfg.divider, v32);
+
+ /* Number of 16-sample units. */
+ WL32(&cfg.count, devc->limit_samples / 16);
+
+ set_trigger(sdi, &cfg);
+
+ len = sizeof(struct dslogic_fpga_config);
+ ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
+ (unsigned char *)&cfg, len, &transferred, USB_TIMEOUT);
+ if (ret < 0 || transferred != len) {
+ sr_err("Failed to send FPGA configuration: %s.", libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
+SR_PRIV int dslogic_set_voltage_threshold(const struct sr_dev_inst *sdi, double threshold)
+{
+ int ret;
+ struct dev_context *const devc = sdi->priv;
+ const struct sr_usb_dev_inst *const usb = sdi->conn;
+ const uint8_t value = (threshold / 5.0) * 255;
+ const uint16_t cmd = value | (DS_ADDR_VTH << 8);
+
+ /* Send the control command. */
+ ret = libusb_control_transfer(usb->devhdl,
+ LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT,
+ DS_CMD_WR_REG, 0x0000, 0x0000,
+ (unsigned char *)&cmd, sizeof(cmd), 3000);
+ if (ret < 0) {
+ sr_err("Unable to set voltage-threshold register: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ devc->cur_threshold = threshold;
+
+ return SR_OK;
+}
+
+SR_PRIV int dslogic_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
+{
+ libusb_device **devlist;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_device_descriptor des;
+ struct dev_context *devc;
+ struct drv_context *drvc;
+ struct version_info vi;
+ int ret, i, device_count;
+ uint8_t revid;
+ char connection_id[64];
+
+ drvc = di->context;
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ if (sdi->status == SR_ST_ACTIVE)
+ /* Device is already in use. */
+ return SR_ERR;
+
+ device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ if (device_count < 0) {
+ sr_err("Failed to get device list: %s.",
+ libusb_error_name(device_count));
+ return SR_ERR;
+ }
+
+ for (i = 0; i < device_count; i++) {
+ libusb_get_device_descriptor(devlist[i], &des);
+
+ if (des.idVendor != devc->profile->vid
+ || des.idProduct != devc->profile->pid)
+ continue;
+
+ if ((sdi->status == SR_ST_INITIALIZING) ||
+ (sdi->status == SR_ST_INACTIVE)) {
+ /*
+ * Check device by its physical USB bus/port address.
+ */
+ usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
+ if (strcmp(sdi->connection_id, connection_id))
+ /* This is not the one. */
+ continue;
+ }
+
+ if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
+ if (usb->address == 0xff)
+ /*
+ * First time we touch this device after FW
+ * upload, so we don't know the address yet.
+ */
+ usb->address = libusb_get_device_address(devlist[i]);
+ } else {
+ sr_err("Failed to open device: %s.",
+ libusb_error_name(ret));
+ break;
+ }
+
+ if (libusb_has_capability(LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER)) {
+ if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
+ if ((ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE)) < 0) {
+ sr_err("Failed to detach kernel driver: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+ }
+ }
+
+ ret = command_get_fw_version(usb->devhdl, &vi);
+ if (ret != SR_OK) {
+ sr_err("Failed to get firmware version.");
+ break;
+ }
+
+ ret = command_get_revid_version(sdi, &revid);
+ if (ret != SR_OK) {
+ sr_err("Failed to get REVID.");
+ break;
+ }
+
+ /*
+ * Changes in major version mean incompatible/API changes, so
+ * bail out if we encounter an incompatible version.
+ * Different minor versions are OK, they should be compatible.
+ */
+ if (vi.major != DSLOGIC_REQUIRED_VERSION_MAJOR) {
+ sr_err("Expected firmware version %d.x, "
+ "got %d.%d.", DSLOGIC_REQUIRED_VERSION_MAJOR,
+ vi.major, vi.minor);
+ break;
+ }
+
+ sdi->status = SR_ST_ACTIVE;
+ sr_info("Opened device on %d.%d (logical) / %s (physical), "
+ "interface %d, firmware %d.%d.",
+ usb->bus, usb->address, connection_id,
+ USB_INTERFACE, vi.major, vi.minor);
+
+ sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
+ revid, (revid != 1) ? " (FX2)" : "A (FX2LP)");
+
+ break;
+ }
+ libusb_free_device_list(devlist, 1);
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
+
+ return SR_OK;
+}
+
+SR_PRIV struct dev_context *dslogic_dev_new(void)
+{
+ struct dev_context *devc;
+
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->profile = NULL;
+ devc->fw_updated = 0;
+ devc->cur_samplerate = 0;
+ devc->limit_samples = 0;
+ devc->capture_ratio = 0;
+ devc->continuous_mode = FALSE;
+ devc->clock_edge = DS_EDGE_RISING;
+
+ return devc;
+}
+
+static void abort_acquisition(struct dev_context *devc)
+{
+ int i;
+
+ devc->acq_aborted = TRUE;
+
+ for (i = devc->num_transfers - 1; i >= 0; i--) {
+ if (devc->transfers[i])
+ libusb_cancel_transfer(devc->transfers[i]);
+ }
+}
+
+static void finish_acquisition(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+
+ std_session_send_df_end(sdi);
+
+ usb_source_remove(sdi->session, devc->ctx);
+
+ devc->num_transfers = 0;
+ g_free(devc->transfers);
+ g_free(devc->deinterleave_buffer);
+}
+
+static void free_transfer(struct libusb_transfer *transfer)
+{
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+ unsigned int i;
+
+ sdi = transfer->user_data;
+ devc = sdi->priv;
+
+ g_free(transfer->buffer);
+ transfer->buffer = NULL;
+ libusb_free_transfer(transfer);
+
+ for (i = 0; i < devc->num_transfers; i++) {
+ if (devc->transfers[i] == transfer) {
+ devc->transfers[i] = NULL;
+ break;
+ }
+ }
+
+ devc->submitted_transfers--;
+ if (devc->submitted_transfers == 0)
+ finish_acquisition(sdi);
+}
+
+static void resubmit_transfer(struct libusb_transfer *transfer)
+{
+ int ret;
+
+ if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
+ return;
+
+ sr_err("%s: %s", __func__, libusb_error_name(ret));
+ free_transfer(transfer);
+
+}
+
+static void deinterleave_buffer(const uint8_t *src, size_t length,
+ uint16_t *dst_ptr, size_t channel_count, uint16_t channel_mask)
+{
+ uint16_t sample;
+
+ for (const uint64_t *src_ptr = (uint64_t*)src;
+ src_ptr < (uint64_t*)(src + length);
+ src_ptr += channel_count) {
+ for (int bit = 0; bit != 64; bit++) {
+ const uint64_t *word_ptr = src_ptr;
+ sample = 0;
+ for (size_t channel = 0; channel != channel_count;
+ channel++) {
+ if ((channel_mask & (1 << channel)) &&
+ (*word_ptr++ & (1ULL << bit)))
+ sample |= 1 << channel;
+ }
+ *dst_ptr++ = sample;
+ }
+ }
+}
+
+static void send_data(struct sr_dev_inst *sdi,
+ uint16_t *data, size_t sample_count)
+{
+ const struct sr_datafeed_logic logic = {
+ .length = sample_count * sizeof(uint16_t),
+ .unitsize = sizeof(uint16_t),
+ .data = data
+ };
+
+ const struct sr_datafeed_packet packet = {
+ .type = SR_DF_LOGIC,
+ .payload = &logic
+ };
+
+ sr_session_send(sdi, &packet);
+}
+
+static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
+{
+ struct sr_dev_inst *const sdi = transfer->user_data;
+ struct dev_context *const devc = sdi->priv;
+ const size_t channel_count = enabled_channel_count(sdi);
+ const uint16_t channel_mask = enabled_channel_mask(sdi);
+ const unsigned int cur_sample_count = DSLOGIC_ATOMIC_SAMPLES *
+ transfer->actual_length /
+ (DSLOGIC_ATOMIC_BYTES * channel_count);
+
+ gboolean packet_has_error = FALSE;
+ struct sr_datafeed_packet packet;
+ unsigned int num_samples;
+ int trigger_offset;
+
+ /*
+ * If acquisition has already ended, just free any queued up
+ * transfer that come in.
+ */
+ if (devc->acq_aborted) {
+ free_transfer(transfer);
+ return;
+ }
+
+ sr_dbg("receive_transfer(): status %s received %d bytes.",
+ libusb_error_name(transfer->status), transfer->actual_length);
+
+ /* Save incoming transfer before reusing the transfer struct. */
+
+ switch (transfer->status) {
+ case LIBUSB_TRANSFER_NO_DEVICE:
+ abort_acquisition(devc);
+ free_transfer(transfer);
+ return;
+ case LIBUSB_TRANSFER_COMPLETED:
+ case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
+ break;
+ default:
+ packet_has_error = TRUE;
+ break;
+ }
+
+ if (transfer->actual_length == 0 || packet_has_error) {
+ devc->empty_transfer_count++;
+ if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
+ /*
+ * The FX2 gave up. End the acquisition, the frontend
+ * will work out that the samplecount is short.
+ */
+ abort_acquisition(devc);
+ free_transfer(transfer);
+ } else {
+ resubmit_transfer(transfer);
+ }
+ return;
+ } else {
+ devc->empty_transfer_count = 0;
+ }
+
+ if (!devc->limit_samples || devc->sent_samples < devc->limit_samples) {
+ if (devc->limit_samples && devc->sent_samples + cur_sample_count > devc->limit_samples)
+ num_samples = devc->limit_samples - devc->sent_samples;
+ else
+ num_samples = cur_sample_count;
+
+ /**
+ * The DSLogic emits sample data as sequences of 64-bit sample words
+ * in a round-robin i.e. 64-bits from channel 0, 64-bits from channel 1
+ * etc. for each of the enabled channels, then looping back to the
+ * channel.
+ *
+ * Because sigrok's internal representation is bit-interleaved channels
+ * we must recast the data.
+ *
+ * Hopefully in future it will be possible to pass the data on as-is.
+ */
+ assert(transfer->actual_length % (DSLOGIC_ATOMIC_BYTES * channel_count) == 0);
+ deinterleave_buffer(transfer->buffer, transfer->actual_length,
+ devc->deinterleave_buffer, channel_count, channel_mask);
+
+ /* Send the incoming transfer to the session bus. */
+ if (devc->trigger_pos > devc->sent_samples
+ && devc->trigger_pos <= devc->sent_samples + num_samples) {
+ /* DSLogic trigger in this block. Send trigger position. */
+ trigger_offset = devc->trigger_pos - devc->sent_samples;
+ /* Pre-trigger samples. */
+ send_data(sdi, devc->deinterleave_buffer, trigger_offset);
+ devc->sent_samples += trigger_offset;
+ /* Trigger position. */
+ devc->trigger_pos = 0;
+ packet.type = SR_DF_TRIGGER;
+ packet.payload = NULL;
+ sr_session_send(sdi, &packet);
+ /* Post trigger samples. */
+ num_samples -= trigger_offset;
+ send_data(sdi, devc->deinterleave_buffer
+ + trigger_offset, num_samples);
+ devc->sent_samples += num_samples;
+ } else {
+ send_data(sdi, devc->deinterleave_buffer, num_samples);
+ devc->sent_samples += num_samples;
+ }
+ }
+
+ if (devc->limit_samples && devc->sent_samples >= devc->limit_samples) {
+ abort_acquisition(devc);
+ free_transfer(transfer);
+ } else
+ resubmit_transfer(transfer);
+}
+
+static int receive_data(int fd, int revents, void *cb_data)
+{
+ struct timeval tv;
+ struct drv_context *drvc;
+
+ (void)fd;
+ (void)revents;
+
+ drvc = (struct drv_context *)cb_data;
+
+ tv.tv_sec = tv.tv_usec = 0;
+ libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
+
+ return TRUE;
+}
+
+static size_t to_bytes_per_ms(const struct sr_dev_inst *sdi)
+{
+ const struct dev_context *const devc = sdi->priv;
+ const size_t ch_count = enabled_channel_count(sdi);
+
+ if (devc->continuous_mode)
+ return (devc->cur_samplerate * ch_count) / (1000 * 8);
+
+
+ /* If we're in buffered mode, the transfer rate is not so important,
+ * but we expect to get at least 10% of the high-speed USB bandwidth.
+ */
+ return 35000000 / (1000 * 10);
+}
+
+static size_t get_buffer_size(const struct sr_dev_inst *sdi)
+{
+ /*
+ * The buffer should be large enough to hold 10ms of data and
+ * a multiple of the size of a data atom.
+ */
+ const size_t block_size = enabled_channel_count(sdi) * 512;
+ const size_t s = 10 * to_bytes_per_ms(sdi);
+ return ((s + block_size - 1) / block_size) * block_size;
+}
+
+static unsigned int get_number_of_transfers(const struct sr_dev_inst *sdi)
+{
+ /* Total buffer size should be able to hold about 100ms of data. */
+ const unsigned int s = get_buffer_size(sdi);
+ const unsigned int n = (100 * to_bytes_per_ms(sdi) + s - 1) / s;
+ return (n > NUM_SIMUL_TRANSFERS) ? NUM_SIMUL_TRANSFERS : n;
+}
+
+static unsigned int get_timeout(const struct sr_dev_inst *sdi)
+{
+ const size_t total_size = get_buffer_size(sdi) *
+ get_number_of_transfers(sdi);
+ const unsigned int timeout = total_size / to_bytes_per_ms(sdi);
+ return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
+}
+
+static int start_transfers(const struct sr_dev_inst *sdi)
+{
+ const size_t channel_count = enabled_channel_count(sdi);
+ const size_t size = get_buffer_size(sdi);
+ const unsigned int num_transfers = get_number_of_transfers(sdi);
+ const unsigned int timeout = get_timeout(sdi);
+
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_transfer *transfer;
+ unsigned int i;
+ int ret;
+ unsigned char *buf;
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ devc->sent_samples = 0;
+ devc->acq_aborted = FALSE;
+ devc->empty_transfer_count = 0;
+ devc->submitted_transfers = 0;
+
+ g_free(devc->transfers);
+ devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
+ if (!devc->transfers) {
+ sr_err("USB transfers malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+
+ devc->deinterleave_buffer = g_try_malloc(DSLOGIC_ATOMIC_SAMPLES *
+ (size / (channel_count * DSLOGIC_ATOMIC_BYTES)) * sizeof(uint16_t));
+ if (!devc->deinterleave_buffer) {
+ sr_err("Deinterleave buffer malloc failed.");
+ g_free(devc->deinterleave_buffer);
+ return SR_ERR_MALLOC;
+ }
+
+ devc->num_transfers = num_transfers;
+ for (i = 0; i < num_transfers; i++) {
+ if (!(buf = g_try_malloc(size))) {
+ sr_err("USB transfer buffer malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+ transfer = libusb_alloc_transfer(0);
+ libusb_fill_bulk_transfer(transfer, usb->devhdl,
+ 6 | LIBUSB_ENDPOINT_IN, buf, size,
+ receive_transfer, (void *)sdi, timeout);
+ sr_info("submitting transfer: %d", i);
+ if ((ret = libusb_submit_transfer(transfer)) != 0) {
+ sr_err("Failed to submit transfer: %s.",
+ libusb_error_name(ret));
+ libusb_free_transfer(transfer);
+ g_free(buf);
+ abort_acquisition(devc);
+ return SR_ERR;
+ }
+ devc->transfers[i] = transfer;
+ devc->submitted_transfers++;
+ }
+
+ std_session_send_df_header(sdi);
+
+ return SR_OK;
+}
+
+static void LIBUSB_CALL trigger_receive(struct libusb_transfer *transfer)
+{
+ const struct sr_dev_inst *sdi;
+ struct dslogic_trigger_pos *tpos;
+ struct dev_context *devc;
+
+ sdi = transfer->user_data;
+ devc = sdi->priv;
+ if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
+ sr_dbg("Trigger transfer canceled.");
+ /* Terminate session. */
+ std_session_send_df_end(sdi);
+ usb_source_remove(sdi->session, devc->ctx);
+ devc->num_transfers = 0;
+ g_free(devc->transfers);
+ } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
+ && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
+ tpos = (struct dslogic_trigger_pos *)transfer->buffer;
+ sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos,
+ tpos->ram_saddr, tpos->remain_cnt);
+ devc->trigger_pos = tpos->real_pos;
+ g_free(tpos);
+ start_transfers(sdi);
+ }
+ libusb_free_transfer(transfer);
+}
+
+SR_PRIV int dslogic_acquisition_start(const struct sr_dev_inst *sdi)
+{
+ const unsigned int timeout = get_timeout(sdi);
+
+ struct sr_dev_driver *di;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ struct dslogic_trigger_pos *tpos;
+ struct libusb_transfer *transfer;
+ int ret;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ di = sdi->driver;
+ drvc = di->context;
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ devc->ctx = drvc->sr_ctx;
+ devc->sent_samples = 0;
+ devc->empty_transfer_count = 0;
+ devc->acq_aborted = FALSE;
+
+ usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
+
+ if ((ret = command_stop_acquisition(sdi)) != SR_OK)
+ return ret;
+
+ if ((ret = fpga_configure(sdi)) != SR_OK)
+ return ret;
+
+ if ((ret = command_start_acquisition(sdi)) != SR_OK)
+ return ret;
+
+ sr_dbg("Getting trigger.");
+ tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
+ transfer = libusb_alloc_transfer(0);
+ libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
+ (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
+ trigger_receive, (void *)sdi, 0);
+ if ((ret = libusb_submit_transfer(transfer)) < 0) {
+ sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
+ libusb_free_transfer(transfer);
+ g_free(tpos);
+ return SR_ERR;
+ }
+
+ devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
+ if (!devc->transfers) {
+ sr_err("USB trigger_pos transfer malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+ devc->num_transfers = 1;
+ devc->submitted_transfers++;
+ devc->transfers[0] = transfer;
+
+ return ret;
+}
+
+SR_PRIV int dslogic_acquisition_stop(struct sr_dev_inst *sdi)
+{
+ command_stop_acquisition(sdi);
+ abort_acquisition(sdi->priv);
+ return SR_OK;
+}
--- /dev/null
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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/>.
+ */
+
+#ifndef LIBSIGROK_HARDWARE_DREAMSOURCELAB_DSLOGIC_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_DREAMSOURCELAB_DSLOGIC_PROTOCOL_H
+
+#include <glib.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libusb.h>
+#include <libsigrok/libsigrok.h>
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "dslogic"
+
+#define USB_INTERFACE 0
+#define USB_CONFIGURATION 1
+
+#define MAX_RENUM_DELAY_MS 3000
+#define NUM_SIMUL_TRANSFERS 32
+#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
+
+#define NUM_CHANNELS 16
+#define NUM_TRIGGER_STAGES 16
+
+#define DSLOGIC_REQUIRED_VERSION_MAJOR 1
+
+/* 6 delay states of up to 256 clock ticks */
+#define MAX_SAMPLE_DELAY (6 * 256)
+
+#define DSLOGIC_FPGA_FIRMWARE_5V "dreamsourcelab-dslogic-fpga-5v.fw"
+#define DSLOGIC_FPGA_FIRMWARE_3V3 "dreamsourcelab-dslogic-fpga-3v3.fw"
+#define DSCOPE_FPGA_FIRMWARE "dreamsourcelab-dscope-fpga.fw"
+#define DSLOGIC_PRO_FPGA_FIRMWARE "dreamsourcelab-dslogic-pro-fpga.fw"
+#define DSLOGIC_PLUS_FPGA_FIRMWARE "dreamsourcelab-dslogic-plus-fpga.fw"
+#define DSLOGIC_BASIC_FPGA_FIRMWARE "dreamsourcelab-dslogic-basic-fpga.fw"
+
+enum dslogic_operation_modes {
+ DS_OP_NORMAL,
+ DS_OP_INTERNAL_TEST,
+ DS_OP_EXTERNAL_TEST,
+ DS_OP_LOOPBACK_TEST,
+};
+
+enum dslogic_edge_modes {
+ DS_EDGE_RISING,
+ DS_EDGE_FALLING,
+};
+
+struct dslogic_version {
+ uint8_t major;
+ uint8_t minor;
+};
+
+struct dslogic_mode {
+ uint8_t flags;
+ uint8_t sample_delay_h;
+ uint8_t sample_delay_l;
+};
+
+struct dslogic_trigger_pos {
+ uint32_t real_pos;
+ uint32_t ram_saddr;
+ uint32_t remain_cnt;
+ uint8_t first_block[500];
+};
+
+struct dslogic_profile {
+ uint16_t vid;
+ uint16_t pid;
+
+ const char *vendor;
+ const char *model;
+ const char *model_version;
+
+ const char *firmware;
+
+ uint32_t dev_caps;
+
+ const char *usb_manufacturer;
+ const char *usb_product;
+
+ /* Memory depth in bits. */
+ uint64_t mem_depth;
+};
+
+struct dev_context {
+ const struct dslogic_profile *profile;
+ /*
+ * Since we can't keep track of a DSLogic device after upgrading
+ * the firmware (it renumerates into a different device address
+ * after the upgrade) this is like a global lock. No device will open
+ * until a proper delay after the last device was upgraded.
+ */
+ int64_t fw_updated;
+
+ /* Supported samplerates */
+ const uint64_t *samplerates;
+ int num_samplerates;
+
+ /* Device/capture settings */
+ uint64_t cur_samplerate;
+ uint64_t limit_samples;
+ uint64_t capture_ratio;
+
+ /* Operational settings */
+ gboolean acq_aborted;
+
+ unsigned int sent_samples;
+ int submitted_transfers;
+ int empty_transfer_count;
+
+ unsigned int num_transfers;
+ struct libusb_transfer **transfers;
+ struct sr_context *ctx;
+
+ uint16_t *deinterleave_buffer;
+
+ uint16_t mode;
+ uint32_t trigger_pos;
+ gboolean external_clock;
+ gboolean continuous_mode;
+ int clock_edge;
+ double cur_threshold;
+};
+
+SR_PRIV int dslogic_fpga_firmware_upload(const struct sr_dev_inst *sdi);
+SR_PRIV int dslogic_set_voltage_threshold(const struct sr_dev_inst *sdi, double threshold);
+SR_PRIV int dslogic_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di);
+SR_PRIV struct dev_context *dslogic_dev_new(void);
+SR_PRIV int dslogic_acquisition_start(const struct sr_dev_inst *sdi);
+SR_PRIV int dslogic_acquisition_stop(struct sr_dev_inst *sdi);
+
+#endif
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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 <math.h>
-#include "protocol.h"
-
-static const struct dslogic_profile supported_device[] = {
- /* DreamSourceLab DSLogic */
- { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
- "dreamsourcelab-dslogic-fx2.fw",
- 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
- /* DreamSourceLab DSCope */
- { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
- "dreamsourcelab-dscope-fx2.fw",
- 0, "DreamSourceLab", "DSCope", 256 * 1048576ULL},
- /* DreamSourceLab DSLogic Pro */
- { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
- "dreamsourcelab-dslogic-pro-fx2.fw",
- 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
- /* DreamSourceLab DSLogic Plus */
- { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL,
- "dreamsourcelab-dslogic-plus-fx2.fw",
- 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
- /* DreamSourceLab DSLogic Basic */
- { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL,
- "dreamsourcelab-dslogic-basic-fx2.fw",
- 0, "DreamSourceLab", "DSLogic", 256 * 1024ULL},
-
- ALL_ZERO
-};
-
-static const uint32_t drvopts[] = {
- SR_CONF_LOGIC_ANALYZER,
-};
-
-static const uint32_t scanopts[] = {
- SR_CONF_CONN,
-};
-
-static const uint32_t devopts[] = {
- SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
- SR_CONF_CONN | SR_CONF_GET,
- SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
- SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
- SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
-};
-
-/* Names assigned to available edge slope choices. */
-static const char *const signal_edge_names[] = {
- [DS_EDGE_RISING] = "rising",
- [DS_EDGE_FALLING] = "falling",
-};
-
-static const struct {
- gdouble low;
- gdouble high;
-} dslogic_voltage_thresholds[] = {
- { 0.7, 1.4 },
- { 1.4, 3.6 },
-};
-
-static const uint64_t samplerates[] = {
- SR_KHZ(10),
- SR_KHZ(20),
- SR_KHZ(50),
- SR_KHZ(100),
- SR_KHZ(200),
- SR_KHZ(500),
- SR_MHZ(1),
- SR_MHZ(2),
- SR_MHZ(5),
- SR_MHZ(10),
- SR_MHZ(20),
- SR_MHZ(25),
- SR_MHZ(50),
- SR_MHZ(100),
- SR_MHZ(200),
- SR_MHZ(400),
-};
-
-static gboolean is_plausible(const struct libusb_device_descriptor *des)
-{
- int i;
-
- for (i = 0; supported_device[i].vid; i++) {
- if (des->idVendor != supported_device[i].vid)
- continue;
- if (des->idProduct == supported_device[i].pid)
- return TRUE;
- }
-
- return FALSE;
-}
-
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_dev_inst *sdi;
- struct sr_usb_dev_inst *usb;
- struct sr_channel *ch;
- struct sr_channel_group *cg;
- struct sr_config *src;
- const struct dslogic_profile *prof;
- GSList *l, *devices, *conn_devices;
- gboolean has_firmware;
- struct libusb_device_descriptor des;
- libusb_device **devlist;
- struct libusb_device_handle *hdl;
- int ret, i, j;
- const char *conn;
- char manufacturer[64], product[64], serial_num[64], connection_id[64];
- char channel_name[16];
-
- drvc = di->context;
-
- conn = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- switch (src->key) {
- case SR_CONF_CONN:
- conn = g_variant_get_string(src->data, NULL);
- break;
- }
- }
- if (conn)
- conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
- else
- conn_devices = NULL;
-
- /* Find all dslogic compatible devices and upload firmware to them. */
- devices = NULL;
- libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- for (i = 0; devlist[i]; i++) {
- if (conn) {
- usb = NULL;
- for (l = conn_devices; l; l = l->next) {
- usb = l->data;
- if (usb->bus == libusb_get_bus_number(devlist[i])
- && usb->address == libusb_get_device_address(devlist[i]))
- break;
- }
- if (!l)
- /* This device matched none of the ones that
- * matched the conn specification. */
- continue;
- }
-
- libusb_get_device_descriptor( devlist[i], &des);
-
- if (!is_plausible(&des))
- continue;
-
- if ((ret = libusb_open(devlist[i], &hdl)) < 0) {
- sr_warn("Failed to open potential device with "
- "VID:PID %04x:%04x: %s.", des.idVendor,
- des.idProduct, libusb_error_name(ret));
- continue;
- }
-
- if (des.iManufacturer == 0) {
- manufacturer[0] = '\0';
- } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
- des.iManufacturer, (unsigned char *) manufacturer,
- sizeof(manufacturer))) < 0) {
- sr_warn("Failed to get manufacturer string descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- if (des.iProduct == 0) {
- product[0] = '\0';
- } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
- des.iProduct, (unsigned char *) product,
- sizeof(product))) < 0) {
- sr_warn("Failed to get product string descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- if (des.iSerialNumber == 0) {
- serial_num[0] = '\0';
- } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
- des.iSerialNumber, (unsigned char *) serial_num,
- sizeof(serial_num))) < 0) {
- sr_warn("Failed to get serial number string descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
-
- libusb_close(hdl);
-
- prof = NULL;
- for (j = 0; supported_device[j].vid; j++) {
- if (des.idVendor == supported_device[j].vid &&
- des.idProduct == supported_device[j].pid &&
- (!strcmp(manufacturer, supported_device[j].usb_manufacturer)) &&
- (!strcmp(product, "USB-based Instrument") ||
- !strcmp(product, supported_device[j].usb_product))) {
- prof = &supported_device[j];
- break;
- }
- }
-
- /* Skip if the device was not found. */
- if (!prof)
- continue;
-
- sdi = g_malloc0(sizeof(struct sr_dev_inst));
- sdi->status = SR_ST_INITIALIZING;
- sdi->vendor = g_strdup(prof->vendor);
- sdi->model = g_strdup(prof->model);
- sdi->version = g_strdup(prof->model_version);
- sdi->serial_num = g_strdup(serial_num);
- sdi->connection_id = g_strdup(connection_id);
-
- /* Logic channels, all in one channel group. */
- cg = g_malloc0(sizeof(struct sr_channel_group));
- cg->name = g_strdup("Logic");
- for (j = 0; j < 16; j++) {
- sprintf(channel_name, "%d", j);
- ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
- TRUE, channel_name);
- cg->channels = g_slist_append(cg->channels, ch);
- }
- sdi->channel_groups = g_slist_append(NULL, cg);
-
- devc = dslogic_dev_new();
- devc->profile = prof;
- sdi->priv = devc;
- devices = g_slist_append(devices, sdi);
-
- devc->samplerates = samplerates;
- devc->num_samplerates = ARRAY_SIZE(samplerates);
- has_firmware = usb_match_manuf_prod(devlist[i], "DreamSourceLab", "USB-based Instrument");
-
- if (has_firmware) {
- /* Already has the firmware, so fix the new address. */
- sr_dbg("Found an dslogic device.");
- sdi->status = SR_ST_INACTIVE;
- sdi->inst_type = SR_INST_USB;
- sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
- libusb_get_device_address(devlist[i]), NULL);
- } else {
- if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
- USB_CONFIGURATION, prof->firmware) == SR_OK)
- /* Store when this device's FW was updated. */
- devc->fw_updated = g_get_monotonic_time();
- else
- sr_err("Firmware upload failed for "
- "device %d.%d (logical).",
- libusb_get_bus_number(devlist[i]),
- libusb_get_device_address(devlist[i]));
- sdi->inst_type = SR_INST_USB;
- sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
- 0xff, NULL);
- }
- }
- libusb_free_device_list(devlist, 1);
- g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
-
- return std_scan_complete(di, devices);
-}
-
-static void clear_dev_context(void *priv)
-{
- struct dev_context *devc;
-
- devc = priv;
- g_free(devc);
-}
-
-static int dev_clear(const struct sr_dev_driver *di)
-{
- return std_dev_clear(di, clear_dev_context);
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct sr_dev_driver *di = sdi->driver;
- struct sr_usb_dev_inst *usb;
- struct dev_context *devc;
- int ret;
- int64_t timediff_us, timediff_ms;
-
- devc = sdi->priv;
- usb = sdi->conn;
-
- /*
- * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
- * milliseconds for the FX2 to renumerate.
- */
- ret = SR_ERR;
- if (devc->fw_updated > 0) {
- 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) {
- if ((ret = dslogic_dev_open(sdi, di)) == 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);
- } else {
- sr_info("Firmware upload was not needed.");
- ret = dslogic_dev_open(sdi, di);
- }
-
- if (ret != SR_OK) {
- sr_err("Unable to open device.");
- return SR_ERR;
- }
-
- ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
- if (ret != 0) {
- switch (ret) {
- case LIBUSB_ERROR_BUSY:
- sr_err("Unable to claim USB interface. Another "
- "program or driver has already claimed it.");
- break;
- case LIBUSB_ERROR_NO_DEVICE:
- sr_err("Device has been disconnected.");
- break;
- default:
- sr_err("Unable to claim interface: %s.",
- libusb_error_name(ret));
- break;
- }
-
- return SR_ERR;
- }
-
-
- if ((ret = dslogic_fpga_firmware_upload(sdi)) != SR_OK)
- return ret;
-
- if (devc->cur_samplerate == 0) {
- /* Samplerate hasn't been set; default to the slowest one. */
- devc->cur_samplerate = devc->samplerates[0];
- }
-
- if (devc->cur_threshold == 0.0)
- devc->cur_threshold = 1.5;
-
- return SR_OK;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
-
- usb = sdi->conn;
-
- if (!usb->devhdl)
- return SR_ERR;
-
- sr_info("dslogic: Closing device on %d.%d (logical) / %s (physical) interface %d.",
- usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
- libusb_release_interface(usb->devhdl, USB_INTERFACE);
- 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;
- struct sr_usb_dev_inst *usb;
- GVariant *range[2];
- unsigned int i, voltage_range;
- char str[128];
-
- (void)cg;
-
- if (!sdi)
- return SR_ERR_ARG;
-
- devc = sdi->priv;
-
- switch (key) {
- case SR_CONF_CONN:
- if (!sdi->conn)
- return SR_ERR_ARG;
- usb = sdi->conn;
- if (usb->address == 255)
- /* Device still needs to re-enumerate after firmware
- * upload, so we don't know its (future) address. */
- return SR_ERR;
- snprintf(str, 128, "%d.%d", usb->bus, usb->address);
- *data = g_variant_new_string(str);
- break;
- case SR_CONF_VOLTAGE_THRESHOLD:
- if (!strcmp(devc->profile->model, "DSLogic")) {
- voltage_range = 0;
-
- for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++)
- if (dslogic_voltage_thresholds[i].low ==
- devc->cur_threshold) {
- voltage_range = i;
- break;
- }
-
- range[0] = g_variant_new_double(
- dslogic_voltage_thresholds[voltage_range].low);
- range[1] = g_variant_new_double(
- dslogic_voltage_thresholds[voltage_range].high);
- } else {
- range[0] = g_variant_new_double(devc->cur_threshold);
- range[1] = g_variant_new_double(devc->cur_threshold);
- }
- *data = g_variant_new_tuple(range, 2);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- *data = g_variant_new_uint64(devc->limit_samples);
- break;
- case SR_CONF_SAMPLERATE:
- *data = g_variant_new_uint64(devc->cur_samplerate);
- break;
- case SR_CONF_CAPTURE_RATIO:
- *data = g_variant_new_uint64(devc->capture_ratio);
- break;
- case SR_CONF_EXTERNAL_CLOCK:
- *data = g_variant_new_boolean(devc->external_clock);
- break;
- case SR_CONF_CONTINUOUS:
- *data = g_variant_new_boolean(devc->continuous_mode);
- break;
- case SR_CONF_CLOCK_EDGE:
- i = devc->clock_edge;
- if (i >= ARRAY_SIZE(signal_edge_names))
- return SR_ERR_BUG;
- *data = g_variant_new_string(signal_edge_names[0]);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-/*
- * Helper for mapping a string-typed configuration value to an index
- * within a table of possible values.
- */
-static int lookup_index(GVariant *value, const char *const *table, int len)
-{
- const char *entry;
- int i;
-
- entry = g_variant_get_string(value, NULL);
- if (!entry)
- return -1;
-
- /* Linear search is fine for very small tables. */
- for (i = 0; i < len; i++) {
- if (strcmp(entry, table[i]) == 0)
- return i;
- }
-
- return -1;
-}
-
-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;
- uint64_t arg;
- int i, ret;
- gdouble low, high;
-
- (void)cg;
-
- if (!sdi)
- return SR_ERR_ARG;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- devc = sdi->priv;
-
- ret = SR_OK;
-
- switch (key) {
- case SR_CONF_SAMPLERATE:
- arg = g_variant_get_uint64(data);
- for (i = 0; i < devc->num_samplerates; i++) {
- if (devc->samplerates[i] == arg) {
- devc->cur_samplerate = arg;
- break;
- }
- }
- if (i == devc->num_samplerates)
- ret = SR_ERR_ARG;
- break;
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = g_variant_get_uint64(data);
- break;
- case SR_CONF_CAPTURE_RATIO:
- devc->capture_ratio = g_variant_get_uint64(data);
- ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
- break;
- case SR_CONF_VOLTAGE_THRESHOLD:
- g_variant_get(data, "(dd)", &low, &high);
- if (!strcmp(devc->profile->model, "DSLogic")) {
- for (i = 0; (unsigned int)i <
- ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
- if (fabs(dslogic_voltage_thresholds[i].low - low) < 0.1 &&
- fabs(dslogic_voltage_thresholds[i].high - high) < 0.1) {
- devc->cur_threshold =
- dslogic_voltage_thresholds[i].low;
- break;
- }
- }
- ret = dslogic_fpga_firmware_upload(sdi);
- } else {
- ret = dslogic_set_voltage_threshold(sdi, (low + high) / 2.0);
- }
- break;
- case SR_CONF_EXTERNAL_CLOCK:
- devc->external_clock = g_variant_get_boolean(data);
- break;
- case SR_CONF_CONTINUOUS:
- devc->continuous_mode = g_variant_get_boolean(data);
- break;
- case SR_CONF_CLOCK_EDGE:
- i = lookup_index(data, signal_edge_names,
- ARRAY_SIZE(signal_edge_names));
- if (i < 0)
- return SR_ERR_ARG;
- devc->clock_edge = i;
- break;
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(uint32_t key, GVariant **data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
-{
- struct dev_context *devc = NULL;
- GVariant *gvar, *range[2];
- GVariantBuilder gvb;
- unsigned int i;
- double v;
-
- (void)cg;
-
- switch (key) {
- case SR_CONF_SCAN_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
- break;
- case SR_CONF_DEVICE_OPTIONS:
- if (!sdi) {
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
- } else {
- devc = sdi->priv;
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
- }
- break;
- case SR_CONF_VOLTAGE_THRESHOLD:
- if (sdi->priv)
- devc = sdi->priv;
- g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
- if (devc && !strcmp(devc->profile->model, "DSLogic")) {
- for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
- range[0] = g_variant_new_double(dslogic_voltage_thresholds[i].low);
- range[1] = g_variant_new_double(dslogic_voltage_thresholds[i].high);
- gvar = g_variant_new_tuple(range, 2);
- g_variant_builder_add_value(&gvb, gvar);
- }
- } else {
- for (v = 0.0; v <= 5.0; v += 0.1) {
- range[0] = g_variant_new_double(v);
- range[1] = g_variant_new_double(v);
- gvar = g_variant_new_tuple(range, 2);
- g_variant_builder_add_value(&gvb, gvar);
- }
- }
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_SAMPLERATE:
- devc = sdi->priv;
- g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
- gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
- devc->num_samplerates, sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_CLOCK_EDGE:
- *data = g_variant_new_strv(signal_edge_names,
- ARRAY_SIZE(signal_edge_names));
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static struct sr_dev_driver dslogic_driver_info = {
- .name = "dslogic",
- .longname = "DreamSourceLabs DSLogic",
- .api_version = 1,
- .init = std_init,
- .cleanup = std_cleanup,
- .scan = scan,
- .dev_list = std_dev_list,
- .dev_clear = dev_clear,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = dev_open,
- .dev_close = dev_close,
- .dev_acquisition_start = dslogic_acquisition_start,
- .dev_acquisition_stop = dslogic_acquisition_stop,
- .context = NULL,
-};
-SR_REGISTER_DEV_DRIVER(dslogic_driver_info);
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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 <assert.h>
-#include <math.h>
-#include <glib.h>
-#include <glib/gstdio.h>
-#include "protocol.h"
-
-#define DS_CMD_GET_FW_VERSION 0xb0
-#define DS_CMD_GET_REVID_VERSION 0xb1
-#define DS_CMD_START 0xb2
-#define DS_CMD_CONFIG 0xb3
-#define DS_CMD_SETTING 0xb4
-#define DS_CMD_CONTROL 0xb5
-#define DS_CMD_STATUS 0xb6
-#define DS_CMD_STATUS_INFO 0xb7
-#define DS_CMD_WR_REG 0xb8
-#define DS_CMD_WR_NVM 0xb9
-#define DS_CMD_RD_NVM 0xba
-#define DS_CMD_RD_NVM_PRE 0xbb
-#define DS_CMD_GET_HW_INFO 0xbc
-
-#define DS_START_FLAGS_STOP (1 << 7)
-#define DS_START_FLAGS_CLK_48MHZ (1 << 6)
-#define DS_START_FLAGS_SAMPLE_WIDE (1 << 5)
-#define DS_START_FLAGS_MODE_LA (1 << 4)
-
-#define DS_ADDR_COMB 0x68
-#define DS_ADDR_EEWP 0x70
-#define DS_ADDR_VTH 0x78
-
-#define DS_MAX_LOGIC_DEPTH SR_MHZ(16)
-#define DS_MAX_LOGIC_SAMPLERATE SR_MHZ(100)
-#define DS_MAX_TRIG_PERCENT 90
-
-#define DS_MODE_TRIG_EN (1 << 0)
-#define DS_MODE_CLK_TYPE (1 << 1)
-#define DS_MODE_CLK_EDGE (1 << 2)
-#define DS_MODE_RLE_MODE (1 << 3)
-#define DS_MODE_DSO_MODE (1 << 4)
-#define DS_MODE_HALF_MODE (1 << 5)
-#define DS_MODE_QUAR_MODE (1 << 6)
-#define DS_MODE_ANALOG_MODE (1 << 7)
-#define DS_MODE_FILTER (1 << 8)
-#define DS_MODE_INSTANT (1 << 9)
-#define DS_MODE_STRIG_MODE (1 << 11)
-#define DS_MODE_STREAM_MODE (1 << 12)
-#define DS_MODE_LPB_TEST (1 << 13)
-#define DS_MODE_EXT_TEST (1 << 14)
-#define DS_MODE_INT_TEST (1 << 15)
-
-#define DSLOGIC_ATOMIC_SAMPLES (sizeof(uint64_t) * 8)
-#define DSLOGIC_ATOMIC_BYTES sizeof(uint64_t)
-
-/*
- * The FPGA is configured with TLV tuples. Length is specified as the
- * number of 16-bit words.
- */
-#define _DS_CFG(variable, wordcnt) ((variable << 8) | wordcnt)
-#define DS_CFG_START 0xf5a5f5a5
-#define DS_CFG_MODE _DS_CFG(0, 1)
-#define DS_CFG_DIVIDER _DS_CFG(1, 2)
-#define DS_CFG_COUNT _DS_CFG(3, 2)
-#define DS_CFG_TRIG_POS _DS_CFG(5, 2)
-#define DS_CFG_TRIG_GLB _DS_CFG(7, 1)
-#define DS_CFG_CH_EN _DS_CFG(8, 1)
-#define DS_CFG_TRIG _DS_CFG(64, 160)
-#define DS_CFG_END 0xfa5afa5a
-
-#pragma pack(push, 1)
-
-struct version_info {
- uint8_t major;
- uint8_t minor;
-};
-
-struct cmd_start_acquisition {
- uint8_t flags;
- uint8_t sample_delay_h;
- uint8_t sample_delay_l;
-};
-
-struct dslogic_fpga_config {
- uint32_t sync;
-
- uint16_t mode_header;
- uint16_t mode;
- uint16_t divider_header;
- uint32_t divider;
- uint16_t count_header;
- uint32_t count;
- uint16_t trig_pos_header;
- uint32_t trig_pos;
- uint16_t trig_glb_header;
- uint16_t trig_glb;
- uint16_t ch_en_header;
- uint16_t ch_en;
-
- uint16_t trig_header;
- uint16_t trig_mask0[NUM_TRIGGER_STAGES];
- uint16_t trig_mask1[NUM_TRIGGER_STAGES];
- uint16_t trig_value0[NUM_TRIGGER_STAGES];
- uint16_t trig_value1[NUM_TRIGGER_STAGES];
- uint16_t trig_edge0[NUM_TRIGGER_STAGES];
- uint16_t trig_edge1[NUM_TRIGGER_STAGES];
- uint16_t trig_logic0[NUM_TRIGGER_STAGES];
- uint16_t trig_logic1[NUM_TRIGGER_STAGES];
- uint32_t trig_count[NUM_TRIGGER_STAGES];
-
- uint32_t end_sync;
-};
-
-#pragma pack(pop)
-
-/*
- * This should be larger than the FPGA bitstream image so that it'll get
- * uploaded in one big operation. There seem to be issues when uploading
- * it in chunks.
- */
-#define FW_BUFSIZE (1024 * 1024)
-
-#define FPGA_UPLOAD_DELAY (10 * 1000)
-
-#define USB_TIMEOUT (3 * 1000)
-
-static int command_get_fw_version(libusb_device_handle *devhdl,
- struct version_info *vi)
-{
- int ret;
-
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_IN, DS_CMD_GET_FW_VERSION, 0x0000, 0x0000,
- (unsigned char *)vi, sizeof(struct version_info), USB_TIMEOUT);
-
- if (ret < 0) {
- sr_err("Unable to get version info: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-static int command_get_revid_version(struct sr_dev_inst *sdi, uint8_t *revid)
-{
- struct sr_usb_dev_inst *usb = sdi->conn;
- libusb_device_handle *devhdl = usb->devhdl;
- int ret;
-
- ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_IN, DS_CMD_GET_REVID_VERSION, 0x0000, 0x0000,
- revid, 1, USB_TIMEOUT);
-
- if (ret < 0) {
- sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-static int command_start_acquisition(const struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
- struct dslogic_mode mode;
- int ret;
-
- mode.flags = DS_START_FLAGS_MODE_LA | DS_START_FLAGS_SAMPLE_WIDE;
- mode.sample_delay_h = mode.sample_delay_l = 0;
-
- usb = sdi->conn;
- ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
- (unsigned char *)&mode, sizeof(mode), USB_TIMEOUT);
- if (ret < 0) {
- sr_err("Failed to send start command: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-static int command_stop_acquisition(const struct sr_dev_inst *sdi)
-{
- struct sr_usb_dev_inst *usb;
- struct dslogic_mode mode;
- int ret;
-
- mode.flags = DS_START_FLAGS_STOP;
- mode.sample_delay_h = mode.sample_delay_l = 0;
-
- usb = sdi->conn;
- ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
- (unsigned char *)&mode, sizeof(struct dslogic_mode), USB_TIMEOUT);
- if (ret < 0) {
- sr_err("Failed to send stop command: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-SR_PRIV int dslogic_fpga_firmware_upload(const struct sr_dev_inst *sdi)
-{
- const char *name = NULL;
- uint64_t sum;
- struct sr_resource bitstream;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- unsigned char *buf;
- ssize_t chunksize;
- int transferred;
- int result, ret;
- const uint8_t cmd[3] = {0, 0, 0};
-
- drvc = sdi->driver->context;
- devc = sdi->priv;
- usb = sdi->conn;
-
- if (!strcmp(devc->profile->model, "DSLogic")) {
- if (devc->cur_threshold < 1.40)
- name = DSLOGIC_FPGA_FIRMWARE_3V3;
- else
- name = DSLOGIC_FPGA_FIRMWARE_5V;
- } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
- name = DSLOGIC_PRO_FPGA_FIRMWARE;
- } else if (!strcmp(devc->profile->model, "DSLogic Plus")){
- name = DSLOGIC_PLUS_FPGA_FIRMWARE;
- } else if (!strcmp(devc->profile->model, "DSLogic Basic")){
- name = DSLOGIC_BASIC_FPGA_FIRMWARE;
- } else if (!strcmp(devc->profile->model, "DSCope")) {
- name = DSCOPE_FPGA_FIRMWARE;
- } else {
- sr_err("Failed to select FPGA firmware.");
- return SR_ERR;
- }
-
- sr_dbg("Uploading FPGA firmware '%s'.", name);
-
- result = sr_resource_open(drvc->sr_ctx, &bitstream,
- SR_RESOURCE_FIRMWARE, name);
- if (result != SR_OK)
- return result;
-
- /* Tell the device firmware is coming. */
- if ((ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_OUT, DS_CMD_CONFIG, 0x0000, 0x0000,
- (unsigned char *)&cmd, sizeof(cmd), USB_TIMEOUT)) < 0) {
- sr_err("Failed to upload FPGA firmware: %s.", libusb_error_name(ret));
- sr_resource_close(drvc->sr_ctx, &bitstream);
- return SR_ERR;
- }
-
- /* Give the FX2 time to get ready for FPGA firmware upload. */
- g_usleep(FPGA_UPLOAD_DELAY);
-
- buf = g_malloc(FW_BUFSIZE);
- sum = 0;
- result = SR_OK;
- while (1) {
- chunksize = sr_resource_read(drvc->sr_ctx, &bitstream,
- buf, FW_BUFSIZE);
- if (chunksize < 0)
- result = SR_ERR;
- if (chunksize <= 0)
- break;
-
- if ((ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
- buf, chunksize, &transferred, USB_TIMEOUT)) < 0) {
- sr_err("Unable to configure FPGA firmware: %s.",
- libusb_error_name(ret));
- result = SR_ERR;
- break;
- }
- sum += transferred;
- sr_spew("Uploaded %" PRIu64 "/%" PRIu64 " bytes.",
- sum, bitstream.size);
-
- if (transferred != chunksize) {
- sr_err("Short transfer while uploading FPGA firmware.");
- result = SR_ERR;
- break;
- }
- }
- g_free(buf);
- sr_resource_close(drvc->sr_ctx, &bitstream);
-
- if (result == SR_OK)
- sr_dbg("FPGA firmware upload done.");
-
- return result;
-}
-
-static unsigned int enabled_channel_count(const struct sr_dev_inst *sdi)
-{
- unsigned int count = 0;
- for (const GSList *l = sdi->channels; l; l = l->next) {
- const struct sr_channel *const probe = (struct sr_channel *)l->data;
- if (probe->enabled)
- count++;
- }
- return count;
-}
-
-static uint16_t enabled_channel_mask(const struct sr_dev_inst *sdi)
-{
- unsigned int mask = 0;
- for (const GSList *l = sdi->channels; l; l = l->next) {
- const struct sr_channel *const probe = (struct sr_channel *)l->data;
- if (probe->enabled)
- mask |= 1 << probe->index;
- }
- return mask;
-}
-
-/*
- * Get the session trigger and configure the FPGA structure
- * accordingly.
- */
-static void set_trigger(const struct sr_dev_inst *sdi,
- struct dslogic_fpga_config *cfg)
-{
- struct sr_trigger *trigger;
- struct sr_trigger_stage *stage;
- struct sr_trigger_match *match;
- struct dev_context *devc;
- const GSList *l, *m;
- const unsigned int num_enabled_channels = enabled_channel_count(sdi);
- int num_trigger_stages = 0;
-
- int channelbit, i = 0;
- uint32_t trigger_point;
-
- devc = sdi->priv;
-
- cfg->ch_en = enabled_channel_mask(sdi);
-
- cfg->trig_mask0[0] = 0xffff;
- cfg->trig_mask1[0] = 0xffff;
-
- cfg->trig_value0[0] = 0;
- cfg->trig_value1[0] = 0;
-
- cfg->trig_edge0[0] = 0;
- cfg->trig_edge1[0] = 0;
-
- cfg->trig_logic0[0] = 2;
- cfg->trig_logic1[0] = 2;
-
- cfg->trig_count[0] = 0;
-
- cfg->trig_glb = num_enabled_channels << 4;
-
- for (i = 1; i < NUM_TRIGGER_STAGES; i++) {
- cfg->trig_mask0[i] = 0xffff;
- cfg->trig_mask1[i] = 0xffff;
- cfg->trig_value0[i] = 0;
- cfg->trig_value1[i] = 0;
- cfg->trig_edge0[i] = 0;
- cfg->trig_edge1[i] = 0;
- cfg->trig_logic0[i] = 2;
- cfg->trig_logic1[i] = 2;
- cfg->trig_count[i] = 0;
- }
-
- trigger_point = (devc->capture_ratio * devc->limit_samples) / 100;
- if (trigger_point < DSLOGIC_ATOMIC_SAMPLES)
- trigger_point = DSLOGIC_ATOMIC_SAMPLES;
- const uint32_t mem_depth = devc->profile->mem_depth;
- const uint32_t max_trigger_point = devc->continuous_mode ? ((mem_depth * 10) / 100) :
- ((mem_depth * DS_MAX_TRIG_PERCENT) / 100);
- if (trigger_point > max_trigger_point)
- trigger_point = max_trigger_point;
- cfg->trig_pos = trigger_point & ~(DSLOGIC_ATOMIC_SAMPLES - 1);
-
- if (!(trigger = sr_session_trigger_get(sdi->session))) {
- sr_dbg("No session trigger found");
- return;
- }
-
- for (l = trigger->stages; l; l = l->next) {
- stage = l->data;
- num_trigger_stages++;
- for (m = stage->matches; m; m = m->next) {
- match = m->data;
- if (!match->channel->enabled)
- /* Ignore disabled channels with a trigger. */
- continue;
- channelbit = 1 << (match->channel->index);
- /* Simple trigger support (event). */
- if (match->match == SR_TRIGGER_ONE) {
- cfg->trig_mask0[0] &= ~channelbit;
- cfg->trig_mask1[0] &= ~channelbit;
- cfg->trig_value0[0] |= channelbit;
- cfg->trig_value1[0] |= channelbit;
- } else if (match->match == SR_TRIGGER_ZERO) {
- cfg->trig_mask0[0] &= ~channelbit;
- cfg->trig_mask1[0] &= ~channelbit;
- } else if (match->match == SR_TRIGGER_FALLING) {
- cfg->trig_mask0[0] &= ~channelbit;
- cfg->trig_mask1[0] &= ~channelbit;
- cfg->trig_edge0[0] |= channelbit;
- cfg->trig_edge1[0] |= channelbit;
- } else if (match->match == SR_TRIGGER_RISING) {
- cfg->trig_mask0[0] &= ~channelbit;
- cfg->trig_mask1[0] &= ~channelbit;
- cfg->trig_value0[0] |= channelbit;
- cfg->trig_value1[0] |= channelbit;
- cfg->trig_edge0[0] |= channelbit;
- cfg->trig_edge1[0] |= channelbit;
- } else if (match->match == SR_TRIGGER_EDGE) {
- cfg->trig_edge0[0] |= channelbit;
- cfg->trig_edge1[0] |= channelbit;
- }
- }
- }
-
- cfg->trig_glb |= num_trigger_stages;
-
- return;
-}
-
-static int fpga_configure(const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- uint8_t c[3];
- struct dslogic_fpga_config cfg;
- uint16_t v16;
- uint32_t v32;
- int transferred, len, ret;
-
- sr_dbg("Configuring FPGA.");
-
- usb = sdi->conn;
- devc = sdi->priv;
-
- WL32(&cfg.sync, DS_CFG_START);
- WL16(&cfg.mode_header, DS_CFG_MODE);
- WL16(&cfg.divider_header, DS_CFG_DIVIDER);
- WL16(&cfg.count_header, DS_CFG_COUNT);
- WL16(&cfg.trig_pos_header, DS_CFG_TRIG_POS);
- WL16(&cfg.trig_glb_header, DS_CFG_TRIG_GLB);
- WL16(&cfg.ch_en_header, DS_CFG_CH_EN);
- WL16(&cfg.trig_header, DS_CFG_TRIG);
- WL32(&cfg.end_sync, DS_CFG_END);
-
- /* Pass in the length of a fixed-size struct. Really. */
- len = sizeof(struct dslogic_fpga_config) / 2;
- c[0] = len & 0xff;
- c[1] = (len >> 8) & 0xff;
- c[2] = (len >> 16) & 0xff;
-
- ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
- LIBUSB_ENDPOINT_OUT, DS_CMD_SETTING, 0x0000, 0x0000,
- c, sizeof(c), USB_TIMEOUT);
- if (ret < 0) {
- sr_err("Failed to send FPGA configure command: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
-
- v16 = 0x0000;
-
- if (devc->mode == DS_OP_INTERNAL_TEST)
- v16 = DS_MODE_INT_TEST;
- else if (devc->mode == DS_OP_EXTERNAL_TEST)
- v16 = DS_MODE_EXT_TEST;
- else if (devc->mode == DS_OP_LOOPBACK_TEST)
- v16 = DS_MODE_LPB_TEST;
-
- if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 2)
- v16 |= DS_MODE_HALF_MODE;
- else if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 4)
- v16 |= DS_MODE_QUAR_MODE;
-
- if (devc->continuous_mode)
- v16 |= DS_MODE_STREAM_MODE;
- if (devc->external_clock) {
- v16 |= DS_MODE_CLK_TYPE;
- if (devc->clock_edge == DS_EDGE_FALLING)
- v16 |= DS_MODE_CLK_EDGE;
- }
- if (devc->limit_samples > DS_MAX_LOGIC_DEPTH *
- ceil(devc->cur_samplerate * 1.0 / DS_MAX_LOGIC_SAMPLERATE)
- && !devc->continuous_mode) {
- /* Enable RLE for long captures.
- * Without this, captured data present errors.
- */
- v16 |= DS_MODE_RLE_MODE;
- }
-
- WL16(&cfg.mode, v16);
- v32 = ceil(DS_MAX_LOGIC_SAMPLERATE * 1.0 / devc->cur_samplerate);
- WL32(&cfg.divider, v32);
-
- /* Number of 16-sample units. */
- WL32(&cfg.count, devc->limit_samples / 16);
-
- set_trigger(sdi, &cfg);
-
- len = sizeof(struct dslogic_fpga_config);
- ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
- (unsigned char *)&cfg, len, &transferred, USB_TIMEOUT);
- if (ret < 0 || transferred != len) {
- sr_err("Failed to send FPGA configuration: %s.", libusb_error_name(ret));
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-SR_PRIV int dslogic_set_voltage_threshold(const struct sr_dev_inst *sdi, double threshold)
-{
- int ret;
- struct dev_context *const devc = sdi->priv;
- const struct sr_usb_dev_inst *const usb = sdi->conn;
- const uint8_t value = (threshold / 5.0) * 255;
- const uint16_t cmd = value | (DS_ADDR_VTH << 8);
-
- /* Send the control command. */
- ret = libusb_control_transfer(usb->devhdl,
- LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT,
- DS_CMD_WR_REG, 0x0000, 0x0000,
- (unsigned char *)&cmd, sizeof(cmd), 3000);
- if (ret < 0) {
- sr_err("Unable to set voltage-threshold register: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
-
- devc->cur_threshold = threshold;
-
- return SR_OK;
-}
-
-SR_PRIV int dslogic_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
-{
- libusb_device **devlist;
- struct sr_usb_dev_inst *usb;
- struct libusb_device_descriptor des;
- struct dev_context *devc;
- struct drv_context *drvc;
- struct version_info vi;
- int ret, i, device_count;
- uint8_t revid;
- char connection_id[64];
-
- drvc = di->context;
- devc = sdi->priv;
- usb = sdi->conn;
-
- if (sdi->status == SR_ST_ACTIVE)
- /* Device is already in use. */
- return SR_ERR;
-
- device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- if (device_count < 0) {
- sr_err("Failed to get device list: %s.",
- libusb_error_name(device_count));
- return SR_ERR;
- }
-
- for (i = 0; i < device_count; i++) {
- libusb_get_device_descriptor(devlist[i], &des);
-
- if (des.idVendor != devc->profile->vid
- || des.idProduct != devc->profile->pid)
- continue;
-
- if ((sdi->status == SR_ST_INITIALIZING) ||
- (sdi->status == SR_ST_INACTIVE)) {
- /*
- * Check device by its physical USB bus/port address.
- */
- usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
- if (strcmp(sdi->connection_id, connection_id))
- /* This is not the one. */
- continue;
- }
-
- if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
- if (usb->address == 0xff)
- /*
- * First time we touch this device after FW
- * upload, so we don't know the address yet.
- */
- usb->address = libusb_get_device_address(devlist[i]);
- } else {
- sr_err("Failed to open device: %s.",
- libusb_error_name(ret));
- break;
- }
-
- if (libusb_has_capability(LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER)) {
- if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
- if ((ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE)) < 0) {
- sr_err("Failed to detach kernel driver: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
- }
- }
-
- ret = command_get_fw_version(usb->devhdl, &vi);
- if (ret != SR_OK) {
- sr_err("Failed to get firmware version.");
- break;
- }
-
- ret = command_get_revid_version(sdi, &revid);
- if (ret != SR_OK) {
- sr_err("Failed to get REVID.");
- break;
- }
-
- /*
- * Changes in major version mean incompatible/API changes, so
- * bail out if we encounter an incompatible version.
- * Different minor versions are OK, they should be compatible.
- */
- if (vi.major != DSLOGIC_REQUIRED_VERSION_MAJOR) {
- sr_err("Expected firmware version %d.x, "
- "got %d.%d.", DSLOGIC_REQUIRED_VERSION_MAJOR,
- vi.major, vi.minor);
- break;
- }
-
- sdi->status = SR_ST_ACTIVE;
- sr_info("Opened device on %d.%d (logical) / %s (physical), "
- "interface %d, firmware %d.%d.",
- usb->bus, usb->address, connection_id,
- USB_INTERFACE, vi.major, vi.minor);
-
- sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.",
- revid, (revid != 1) ? " (FX2)" : "A (FX2LP)");
-
- break;
- }
- libusb_free_device_list(devlist, 1);
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- return SR_OK;
-}
-
-SR_PRIV struct dev_context *dslogic_dev_new(void)
-{
- struct dev_context *devc;
-
- devc = g_malloc0(sizeof(struct dev_context));
- devc->profile = NULL;
- devc->fw_updated = 0;
- devc->cur_samplerate = 0;
- devc->limit_samples = 0;
- devc->capture_ratio = 0;
- devc->continuous_mode = FALSE;
- devc->clock_edge = DS_EDGE_RISING;
-
- return devc;
-}
-
-static void abort_acquisition(struct dev_context *devc)
-{
- int i;
-
- devc->acq_aborted = TRUE;
-
- for (i = devc->num_transfers - 1; i >= 0; i--) {
- if (devc->transfers[i])
- libusb_cancel_transfer(devc->transfers[i]);
- }
-}
-
-static void finish_acquisition(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- devc = sdi->priv;
-
- std_session_send_df_end(sdi);
-
- usb_source_remove(sdi->session, devc->ctx);
-
- devc->num_transfers = 0;
- g_free(devc->transfers);
- g_free(devc->deinterleave_buffer);
-}
-
-static void free_transfer(struct libusb_transfer *transfer)
-{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- unsigned int i;
-
- sdi = transfer->user_data;
- devc = sdi->priv;
-
- g_free(transfer->buffer);
- transfer->buffer = NULL;
- libusb_free_transfer(transfer);
-
- for (i = 0; i < devc->num_transfers; i++) {
- if (devc->transfers[i] == transfer) {
- devc->transfers[i] = NULL;
- break;
- }
- }
-
- devc->submitted_transfers--;
- if (devc->submitted_transfers == 0)
- finish_acquisition(sdi);
-}
-
-static void resubmit_transfer(struct libusb_transfer *transfer)
-{
- int ret;
-
- if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS)
- return;
-
- sr_err("%s: %s", __func__, libusb_error_name(ret));
- free_transfer(transfer);
-
-}
-
-static void deinterleave_buffer(const uint8_t *src, size_t length,
- uint16_t *dst_ptr, size_t channel_count, uint16_t channel_mask)
-{
- uint16_t sample;
-
- for (const uint64_t *src_ptr = (uint64_t*)src;
- src_ptr < (uint64_t*)(src + length);
- src_ptr += channel_count) {
- for (int bit = 0; bit != 64; bit++) {
- const uint64_t *word_ptr = src_ptr;
- sample = 0;
- for (size_t channel = 0; channel != channel_count;
- channel++) {
- if ((channel_mask & (1 << channel)) &&
- (*word_ptr++ & (1ULL << bit)))
- sample |= 1 << channel;
- }
- *dst_ptr++ = sample;
- }
- }
-}
-
-static void send_data(struct sr_dev_inst *sdi,
- uint16_t *data, size_t sample_count)
-{
- const struct sr_datafeed_logic logic = {
- .length = sample_count * sizeof(uint16_t),
- .unitsize = sizeof(uint16_t),
- .data = data
- };
-
- const struct sr_datafeed_packet packet = {
- .type = SR_DF_LOGIC,
- .payload = &logic
- };
-
- sr_session_send(sdi, &packet);
-}
-
-static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
-{
- struct sr_dev_inst *const sdi = transfer->user_data;
- struct dev_context *const devc = sdi->priv;
- const size_t channel_count = enabled_channel_count(sdi);
- const uint16_t channel_mask = enabled_channel_mask(sdi);
- const unsigned int cur_sample_count = DSLOGIC_ATOMIC_SAMPLES *
- transfer->actual_length /
- (DSLOGIC_ATOMIC_BYTES * channel_count);
-
- gboolean packet_has_error = FALSE;
- struct sr_datafeed_packet packet;
- unsigned int num_samples;
- int trigger_offset;
-
- /*
- * If acquisition has already ended, just free any queued up
- * transfer that come in.
- */
- if (devc->acq_aborted) {
- free_transfer(transfer);
- return;
- }
-
- sr_dbg("receive_transfer(): status %s received %d bytes.",
- libusb_error_name(transfer->status), transfer->actual_length);
-
- /* Save incoming transfer before reusing the transfer struct. */
-
- switch (transfer->status) {
- case LIBUSB_TRANSFER_NO_DEVICE:
- abort_acquisition(devc);
- free_transfer(transfer);
- return;
- case LIBUSB_TRANSFER_COMPLETED:
- case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */
- break;
- default:
- packet_has_error = TRUE;
- break;
- }
-
- if (transfer->actual_length == 0 || packet_has_error) {
- devc->empty_transfer_count++;
- if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) {
- /*
- * The FX2 gave up. End the acquisition, the frontend
- * will work out that the samplecount is short.
- */
- abort_acquisition(devc);
- free_transfer(transfer);
- } else {
- resubmit_transfer(transfer);
- }
- return;
- } else {
- devc->empty_transfer_count = 0;
- }
-
- if (!devc->limit_samples || devc->sent_samples < devc->limit_samples) {
- if (devc->limit_samples && devc->sent_samples + cur_sample_count > devc->limit_samples)
- num_samples = devc->limit_samples - devc->sent_samples;
- else
- num_samples = cur_sample_count;
-
- /**
- * The DSLogic emits sample data as sequences of 64-bit sample words
- * in a round-robin i.e. 64-bits from channel 0, 64-bits from channel 1
- * etc. for each of the enabled channels, then looping back to the
- * channel.
- *
- * Because sigrok's internal representation is bit-interleaved channels
- * we must recast the data.
- *
- * Hopefully in future it will be possible to pass the data on as-is.
- */
- assert(transfer->actual_length % (DSLOGIC_ATOMIC_BYTES * channel_count) == 0);
- deinterleave_buffer(transfer->buffer, transfer->actual_length,
- devc->deinterleave_buffer, channel_count, channel_mask);
-
- /* Send the incoming transfer to the session bus. */
- if (devc->trigger_pos > devc->sent_samples
- && devc->trigger_pos <= devc->sent_samples + num_samples) {
- /* DSLogic trigger in this block. Send trigger position. */
- trigger_offset = devc->trigger_pos - devc->sent_samples;
- /* Pre-trigger samples. */
- send_data(sdi, devc->deinterleave_buffer, trigger_offset);
- devc->sent_samples += trigger_offset;
- /* Trigger position. */
- devc->trigger_pos = 0;
- packet.type = SR_DF_TRIGGER;
- packet.payload = NULL;
- sr_session_send(sdi, &packet);
- /* Post trigger samples. */
- num_samples -= trigger_offset;
- send_data(sdi, devc->deinterleave_buffer
- + trigger_offset, num_samples);
- devc->sent_samples += num_samples;
- } else {
- send_data(sdi, devc->deinterleave_buffer, num_samples);
- devc->sent_samples += num_samples;
- }
- }
-
- if (devc->limit_samples && devc->sent_samples >= devc->limit_samples) {
- abort_acquisition(devc);
- free_transfer(transfer);
- } else
- resubmit_transfer(transfer);
-}
-
-static int receive_data(int fd, int revents, void *cb_data)
-{
- struct timeval tv;
- struct drv_context *drvc;
-
- (void)fd;
- (void)revents;
-
- drvc = (struct drv_context *)cb_data;
-
- tv.tv_sec = tv.tv_usec = 0;
- libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
-
- return TRUE;
-}
-
-static size_t to_bytes_per_ms(const struct sr_dev_inst *sdi)
-{
- const struct dev_context *const devc = sdi->priv;
- const size_t ch_count = enabled_channel_count(sdi);
-
- if (devc->continuous_mode)
- return (devc->cur_samplerate * ch_count) / (1000 * 8);
-
-
- /* If we're in buffered mode, the transfer rate is not so important,
- * but we expect to get at least 10% of the high-speed USB bandwidth.
- */
- return 35000000 / (1000 * 10);
-}
-
-static size_t get_buffer_size(const struct sr_dev_inst *sdi)
-{
- /*
- * The buffer should be large enough to hold 10ms of data and
- * a multiple of the size of a data atom.
- */
- const size_t block_size = enabled_channel_count(sdi) * 512;
- const size_t s = 10 * to_bytes_per_ms(sdi);
- return ((s + block_size - 1) / block_size) * block_size;
-}
-
-static unsigned int get_number_of_transfers(const struct sr_dev_inst *sdi)
-{
- /* Total buffer size should be able to hold about 100ms of data. */
- const unsigned int s = get_buffer_size(sdi);
- const unsigned int n = (100 * to_bytes_per_ms(sdi) + s - 1) / s;
- return (n > NUM_SIMUL_TRANSFERS) ? NUM_SIMUL_TRANSFERS : n;
-}
-
-static unsigned int get_timeout(const struct sr_dev_inst *sdi)
-{
- const size_t total_size = get_buffer_size(sdi) *
- get_number_of_transfers(sdi);
- const unsigned int timeout = total_size / to_bytes_per_ms(sdi);
- return timeout + timeout / 4; /* Leave a headroom of 25% percent. */
-}
-
-static int start_transfers(const struct sr_dev_inst *sdi)
-{
- const size_t channel_count = enabled_channel_count(sdi);
- const size_t size = get_buffer_size(sdi);
- const unsigned int num_transfers = get_number_of_transfers(sdi);
- const unsigned int timeout = get_timeout(sdi);
-
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- struct libusb_transfer *transfer;
- unsigned int i;
- int ret;
- unsigned char *buf;
-
- devc = sdi->priv;
- usb = sdi->conn;
-
- devc->sent_samples = 0;
- devc->acq_aborted = FALSE;
- devc->empty_transfer_count = 0;
- devc->submitted_transfers = 0;
-
- g_free(devc->transfers);
- devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
- if (!devc->transfers) {
- sr_err("USB transfers malloc failed.");
- return SR_ERR_MALLOC;
- }
-
- devc->deinterleave_buffer = g_try_malloc(DSLOGIC_ATOMIC_SAMPLES *
- (size / (channel_count * DSLOGIC_ATOMIC_BYTES)) * sizeof(uint16_t));
- if (!devc->deinterleave_buffer) {
- sr_err("Deinterleave buffer malloc failed.");
- g_free(devc->deinterleave_buffer);
- return SR_ERR_MALLOC;
- }
-
- devc->num_transfers = num_transfers;
- for (i = 0; i < num_transfers; i++) {
- if (!(buf = g_try_malloc(size))) {
- sr_err("USB transfer buffer malloc failed.");
- return SR_ERR_MALLOC;
- }
- transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, usb->devhdl,
- 6 | LIBUSB_ENDPOINT_IN, buf, size,
- receive_transfer, (void *)sdi, timeout);
- sr_info("submitting transfer: %d", i);
- if ((ret = libusb_submit_transfer(transfer)) != 0) {
- sr_err("Failed to submit transfer: %s.",
- libusb_error_name(ret));
- libusb_free_transfer(transfer);
- g_free(buf);
- abort_acquisition(devc);
- return SR_ERR;
- }
- devc->transfers[i] = transfer;
- devc->submitted_transfers++;
- }
-
- std_session_send_df_header(sdi);
-
- return SR_OK;
-}
-
-static void LIBUSB_CALL trigger_receive(struct libusb_transfer *transfer)
-{
- const struct sr_dev_inst *sdi;
- struct dslogic_trigger_pos *tpos;
- struct dev_context *devc;
-
- sdi = transfer->user_data;
- devc = sdi->priv;
- if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
- sr_dbg("Trigger transfer canceled.");
- /* Terminate session. */
- std_session_send_df_end(sdi);
- usb_source_remove(sdi->session, devc->ctx);
- devc->num_transfers = 0;
- g_free(devc->transfers);
- } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
- && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
- tpos = (struct dslogic_trigger_pos *)transfer->buffer;
- sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos,
- tpos->ram_saddr, tpos->remain_cnt);
- devc->trigger_pos = tpos->real_pos;
- g_free(tpos);
- start_transfers(sdi);
- }
- libusb_free_transfer(transfer);
-}
-
-SR_PRIV int dslogic_acquisition_start(const struct sr_dev_inst *sdi)
-{
- const unsigned int timeout = get_timeout(sdi);
-
- struct sr_dev_driver *di;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_usb_dev_inst *usb;
- struct dslogic_trigger_pos *tpos;
- struct libusb_transfer *transfer;
- int ret;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- di = sdi->driver;
- drvc = di->context;
- devc = sdi->priv;
- usb = sdi->conn;
-
- devc->ctx = drvc->sr_ctx;
- devc->sent_samples = 0;
- devc->empty_transfer_count = 0;
- devc->acq_aborted = FALSE;
-
- usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
-
- if ((ret = command_stop_acquisition(sdi)) != SR_OK)
- return ret;
-
- if ((ret = fpga_configure(sdi)) != SR_OK)
- return ret;
-
- if ((ret = command_start_acquisition(sdi)) != SR_OK)
- return ret;
-
- sr_dbg("Getting trigger.");
- tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
- transfer = libusb_alloc_transfer(0);
- libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
- (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
- trigger_receive, (void *)sdi, 0);
- if ((ret = libusb_submit_transfer(transfer)) < 0) {
- sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
- libusb_free_transfer(transfer);
- g_free(tpos);
- return SR_ERR;
- }
-
- devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
- if (!devc->transfers) {
- sr_err("USB trigger_pos transfer malloc failed.");
- return SR_ERR_MALLOC;
- }
- devc->num_transfers = 1;
- devc->submitted_transfers++;
- devc->transfers[0] = transfer;
-
- return ret;
-}
-
-SR_PRIV int dslogic_acquisition_stop(struct sr_dev_inst *sdi)
-{
- command_stop_acquisition(sdi);
- abort_acquisition(sdi->priv);
- return SR_OK;
-}
+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * 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/>.
- */
-
-#ifndef LIBSIGROK_HARDWARE_DSLOGIC_PROTOCOL_H
-#define LIBSIGROK_HARDWARE_DSLOGIC_PROTOCOL_H
-
-#include <glib.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <libusb.h>
-#include <libsigrok/libsigrok.h>
-#include "libsigrok-internal.h"
-
-#define LOG_PREFIX "dslogic"
-
-#define USB_INTERFACE 0
-#define USB_CONFIGURATION 1
-
-#define MAX_RENUM_DELAY_MS 3000
-#define NUM_SIMUL_TRANSFERS 32
-#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
-
-#define NUM_CHANNELS 16
-#define NUM_TRIGGER_STAGES 16
-
-#define DSLOGIC_REQUIRED_VERSION_MAJOR 1
-
-/* 6 delay states of up to 256 clock ticks */
-#define MAX_SAMPLE_DELAY (6 * 256)
-
-#define DSLOGIC_FPGA_FIRMWARE_5V "dreamsourcelab-dslogic-fpga-5v.fw"
-#define DSLOGIC_FPGA_FIRMWARE_3V3 "dreamsourcelab-dslogic-fpga-3v3.fw"
-#define DSCOPE_FPGA_FIRMWARE "dreamsourcelab-dscope-fpga.fw"
-#define DSLOGIC_PRO_FPGA_FIRMWARE "dreamsourcelab-dslogic-pro-fpga.fw"
-#define DSLOGIC_PLUS_FPGA_FIRMWARE "dreamsourcelab-dslogic-plus-fpga.fw"
-#define DSLOGIC_BASIC_FPGA_FIRMWARE "dreamsourcelab-dslogic-basic-fpga.fw"
-
-enum dslogic_operation_modes {
- DS_OP_NORMAL,
- DS_OP_INTERNAL_TEST,
- DS_OP_EXTERNAL_TEST,
- DS_OP_LOOPBACK_TEST,
-};
-
-enum dslogic_edge_modes {
- DS_EDGE_RISING,
- DS_EDGE_FALLING,
-};
-
-struct dslogic_version {
- uint8_t major;
- uint8_t minor;
-};
-
-struct dslogic_mode {
- uint8_t flags;
- uint8_t sample_delay_h;
- uint8_t sample_delay_l;
-};
-
-struct dslogic_trigger_pos {
- uint32_t real_pos;
- uint32_t ram_saddr;
- uint32_t remain_cnt;
- uint8_t first_block[500];
-};
-
-struct dslogic_profile {
- uint16_t vid;
- uint16_t pid;
-
- const char *vendor;
- const char *model;
- const char *model_version;
-
- const char *firmware;
-
- uint32_t dev_caps;
-
- const char *usb_manufacturer;
- const char *usb_product;
-
- /* Memory depth in bits. */
- uint64_t mem_depth;
-};
-
-struct dev_context {
- const struct dslogic_profile *profile;
- /*
- * Since we can't keep track of an dslogic device after upgrading
- * the firmware (it renumerates into a different device address
- * after the upgrade) this is like a global lock. No device will open
- * until a proper delay after the last device was upgraded.
- */
- int64_t fw_updated;
-
- /* Supported samplerates */
- const uint64_t *samplerates;
- int num_samplerates;
-
- /* Device/capture settings */
- uint64_t cur_samplerate;
- uint64_t limit_samples;
- uint64_t capture_ratio;
-
- /* Operational settings */
- gboolean acq_aborted;
-
- unsigned int sent_samples;
- int submitted_transfers;
- int empty_transfer_count;
-
- unsigned int num_transfers;
- struct libusb_transfer **transfers;
- struct sr_context *ctx;
-
- uint16_t *deinterleave_buffer;
-
- uint16_t mode;
- uint32_t trigger_pos;
- gboolean external_clock;
- gboolean continuous_mode;
- int clock_edge;
- double cur_threshold;
-};
-
-SR_PRIV int dslogic_fpga_firmware_upload(const struct sr_dev_inst *sdi);
-SR_PRIV int dslogic_set_voltage_threshold(const struct sr_dev_inst *sdi, double threshold);
-SR_PRIV int dslogic_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di);
-SR_PRIV struct dev_context *dslogic_dev_new(void);
-SR_PRIV int dslogic_acquisition_start(const struct sr_dev_inst *sdi);
-SR_PRIV int dslogic_acquisition_stop(struct sr_dev_inst *sdi);
-
-#endif
projects / libsigrok.git / commitdiff