--- /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 "protocol.h"
+#include "dslogic.h"
+#include <math.h>
+
+static const struct dslogic_profile supported_device[] = {
+ /* DreamSourceLab DSLogic (before FW upload) */
+ { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
+ "dreamsourcelab-dslogic-fx2.fw",
+ 0, NULL, NULL},
+ /* DreamSourceLab DSLogic (after FW upload) */
+ { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
+ "dreamsourcelab-dslogic-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic"},
+
+ /* DreamSourceLab DSCope (before FW upload) */
+ { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
+ "dreamsourcelab-dscope-fx2.fw",
+ 0, NULL, NULL},
+ /* DreamSourceLab DSCope (after FW upload) */
+ { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
+ "dreamsourcelab-dscope-fx2.fw",
+ 0, "DreamSourceLab", "DSCope"},
+
+ /* DreamSourceLab DSLogic Pro (before FW upload) */
+ { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
+ "dreamsourcelab-dslogic-pro-fx2.fw",
+ 0, NULL, NULL},
+ /* DreamSourceLab DSLogic Pro (after FW upload) */
+ { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
+ "dreamsourcelab-dslogic-pro-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic"},
+
+ /* DreamSourceLab DSLogic Plus (before FW upload) */
+ { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL,
+ "dreamsourcelab-dslogic-plus-fx2.fw",
+ 0, NULL, NULL},
+ /* DreamSourceLab DSLogic Plus (after FW upload) */
+ { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL,
+ "dreamsourcelab-dslogic-plus-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic"},
+
+ /* DreamSourceLab DSLogic Basic (before FW upload) */
+ { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL,
+ "dreamsourcelab-dslogic-basic-fx2.fw",
+ 0, NULL, NULL},
+ /* DreamSourceLab DSLogic Basic (after FW upload) */
+ { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL,
+ "dreamsourcelab-dslogic-basic-fx2.fw",
+ 0, "DreamSourceLab", "DSLogic"},
+
+ 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 {
+ int range;
+ gdouble low;
+ gdouble high;
+} volt_thresholds[] = {
+ { DS_VOLTAGE_RANGE_18_33_V, 0.7, 1.4 },
+ { DS_VOLTAGE_RANGE_5_V, 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 &&
+ (!supported_device[j].usb_manufacturer ||
+ !strcmp(manufacturer, supported_device[j].usb_manufacturer)) &&
+ (!supported_device[j].usb_product ||
+ !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%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", "DSLogic")
+ || usb_match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
+
+ 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;
+ const char *fpga_firmware = NULL;
+ 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 (!strcmp(devc->profile->model, "DSLogic")) {
+ if (devc->voltage_threshold == DS_VOLTAGE_RANGE_18_33_V)
+ fpga_firmware = DSLOGIC_FPGA_FIRMWARE_3V3;
+ else
+ fpga_firmware = DSLOGIC_FPGA_FIRMWARE_5V;
+ } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
+ fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSLogic Plus")){
+ fpga_firmware = DSLOGIC_PLUS_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSLogic Basic")){
+ fpga_firmware = DSLOGIC_BASIC_FPGA_FIRMWARE;
+ } else if (!strcmp(devc->profile->model, "DSCope")) {
+ fpga_firmware = DSCOPE_FPGA_FIRMWARE;
+ }
+
+ if ((ret = dslogic_fpga_firmware_upload(sdi, fpga_firmware)) != 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];
+ }
+
+ 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;
+ 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:
+ for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
+ if (volt_thresholds[i].range != devc->voltage_threshold)
+ continue;
+ range[0] = g_variant_new_double(volt_thresholds[i].low);
+ range[1] = g_variant_new_double(volt_thresholds[i].high);
+ *data = g_variant_new_tuple(range, 2);
+ break;
+ }
+ 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);
+ ret = SR_ERR_ARG;
+ for (i = 0; (unsigned int)i < ARRAY_SIZE(volt_thresholds); i++) {
+ if (fabs(volt_thresholds[i].low - low) < 0.1 &&
+ fabs(volt_thresholds[i].high - high) < 0.1) {
+ devc->voltage_threshold = volt_thresholds[i].range;
+ break;
+ }
+ }
+ if (!strcmp(devc->profile->model, "DSLogic")) {
+ if (devc->voltage_threshold == DS_VOLTAGE_RANGE_5_V)
+ ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_5V);
+ else
+ ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_3V3);
+ } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
+ ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_PRO_FPGA_FIRMWARE);
+ } else if (!strcmp(devc->profile->model, "DSLogic Plus")) {
+ ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_PLUS_FPGA_FIRMWARE);
+ } else if (!strcmp(devc->profile->model, "DSLogic Basic")) {
+ ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_BASIC_FPGA_FIRMWARE);
+ }
+ 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;
+ GVariant *gvar, *range[2];
+ GVariantBuilder gvb;
+ unsigned int i;
+
+ (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)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
+ range[0] = g_variant_new_double(volt_thresholds[i].low);
+ range[1] = g_variant_new_double(volt_thresholds[i].high);
+ 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 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 int start_transfers(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ struct libusb_transfer *transfer;
+ unsigned int i, num_transfers;
+ int timeout, ret;
+ unsigned char *buf;
+ size_t size;
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ devc->sent_samples = 0;
+ devc->acq_aborted = FALSE;
+ devc->empty_transfer_count = 0;
+ devc->trigger_fired = TRUE;
+
+ num_transfers = dslogic_get_number_of_transfers(devc);
+
+ if (devc->cur_samplerate == SR_MHZ(100))
+ num_transfers = 16;
+ else if (devc->cur_samplerate == SR_MHZ(200))
+ num_transfers = 8;
+ else if (devc->cur_samplerate == SR_MHZ(400))
+ num_transfers = 4;
+
+ size = dslogic_get_buffer_size(devc);
+ devc->submitted_transfers = 0;
+
+ devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
+ if (!devc->transfers) {
+ sr_err("USB transfers malloc failed.");
+ return SR_ERR_MALLOC;
+ }
+
+ timeout = dslogic_get_timeout(devc);
+ 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,
+ dslogic_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);
+ dslogic_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);
+}
+
+static int trigger_request(const struct sr_dev_inst *sdi)
+{
+ struct sr_usb_dev_inst *usb;
+ struct libusb_transfer *transfer;
+ struct dslogic_trigger_pos *tpos;
+ struct dev_context *devc;
+ int ret;
+
+ usb = sdi->conn;
+ devc = sdi->priv;
+
+ if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
+ return ret;
+
+ if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
+ return ret;
+
+ /* If this is a DSLogic Pro, set the voltage threshold. */
+ if (!strcmp(devc->profile->model, "DSLogic Pro")){
+ if (devc->voltage_threshold == DS_VOLTAGE_RANGE_18_33_V) {
+ dslogic_set_vth(sdi, 1.4);
+ } else {
+ dslogic_set_vth(sdi, 3.3);
+ }
+ }
+
+ if ((ret = dslogic_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;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
+{
+ struct sr_dev_driver *di;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ int timeout;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ di = sdi->driver;
+ drvc = di->context;
+ devc = sdi->priv;
+
+ devc->ctx = drvc->sr_ctx;
+ devc->sent_samples = 0;
+ devc->empty_transfer_count = 0;
+ devc->acq_aborted = FALSE;
+
+ timeout = dslogic_get_timeout(devc);
+ usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
+
+ trigger_request(sdi);
+
+ return SR_OK;
+}
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
+{
+ dslogic_stop_acquisition(sdi);
+
+ dslogic_abort_acquisition(sdi->priv);
+
+ 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 = dev_acquisition_start,
+ .dev_acquisition_stop = dev_acquisition_stop,
+ .context = NULL,
+};
+SR_REGISTER_DEV_DRIVER(dslogic_driver_info);
projects / libsigrok.git / blobdiff