* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
#include <glib.h>
#include <libusb.h>
#include <stdlib.h>
#include <string.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
+#include <libsigrok/libsigrok.h>
+#include <libsigrok-internal.h>
#include "protocol.h"
static const uint32_t scanopts[] = {
SR_CONF_CONN,
};
-static const uint32_t devopts[] = {
+static const uint32_t drvopts[] = {
SR_CONF_LOGIC_ANALYZER,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
- SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
- SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
- SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
- SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};
static const int32_t trigger_matches[] = {
SR_TRIGGER_FALLING,
};
-/* The hardware supports more samplerates than these, but these are the
- * options hardcoded into the vendor's Windows GUI.
- */
-static const uint64_t samplerates[] = {
- SR_MHZ(125), SR_MHZ(100),
- SR_MHZ(50), SR_MHZ(20), SR_MHZ(10),
- SR_MHZ(5), SR_MHZ(2), SR_MHZ(1),
- SR_KHZ(500), SR_KHZ(200), SR_KHZ(100),
- SR_KHZ(50), SR_KHZ(20), SR_KHZ(10),
- SR_KHZ(5), SR_KHZ(2), SR_KHZ(1),
- SR_HZ(500), SR_HZ(200), SR_HZ(100),
+static const char *trigger_source_names[] = {
+ [TRIGGER_CHANNELS] = "CH",
+ [TRIGGER_EXT_TRG] = "TRG",
};
-/* Names assigned to available trigger sources. Indices must match
- * trigger_source enum values.
- */
-static const char *const trigger_source_names[] = { "CH", "TRG" };
-
-/* Names assigned to available trigger slope choices. Indices must
- * match the signal_edge enum values.
- */
-static const char *const signal_edge_names[] = { "r", "f" };
-
-SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info;
-static struct sr_dev_driver *const di = &sysclk_lwla_driver_info;
-
-static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
+static const char *signal_edge_names[] = {
+ [EDGE_POSITIVE] = "r",
+ [EDGE_NEGATIVE] = "f",
+};
-static struct sr_dev_inst *dev_inst_new(void)
+static struct sr_dev_inst *dev_inst_new(const struct model_info *model)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
int i;
char name[8];
- /* Allocate memory for our private driver context. */
devc = g_malloc0(sizeof(struct dev_context));
+ devc->model = model;
+ devc->active_fpga_config = FPGA_NOCONF;
+ devc->cfg_rle = TRUE;
+ devc->samplerate = model->samplerates[0];
+ devc->channel_mask = (UINT64_C(1) << model->num_channels) - 1;
- /* Register the device with libsigrok. */
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
- sdi->vendor = g_strdup(VENDOR_NAME);
- sdi->model = g_strdup(MODEL_NAME);
+ sdi->vendor = g_strdup("SysClk");
+ sdi->model = g_strdup(model->name);
+ sdi->priv = devc;
- /* Enable all channels to match the default channel configuration. */
- devc->channel_mask = ALL_CHANNELS_MASK;
- devc->samplerate = DEFAULT_SAMPLERATE;
+ for (i = 0; i < model->num_channels; i++) {
+ g_snprintf(name, sizeof(name), "CH%d", i + 1);
+ sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, name);
+ }
- sdi->priv = devc;
- for (i = NUM_CHANNELS; i > 0; --i) {
- /* The LWLA series simply number channels from CH1 to CHxx. */
- g_snprintf(name, sizeof(name), "CH%d", i);
- sr_channel_new(sdi, i - 1, SR_CHANNEL_LOGIC, TRUE, name);
+ return sdi;
+}
+
+/* Create a new device instance for a libusb device if it is a SysClk LWLA
+ * device and also matches the connection specification.
+ */
+static struct sr_dev_inst *dev_inst_new_matching(GSList *conn_matches,
+ libusb_device *dev)
+{
+ GSList *node;
+ struct sr_usb_dev_inst *usb;
+ const struct model_info *model;
+ struct sr_dev_inst *sdi;
+ struct libusb_device_descriptor des;
+ int bus, address, ret;
+ unsigned int vid, pid;
+
+ bus = libusb_get_bus_number(dev);
+ address = libusb_get_device_address(dev);
+
+ for (node = conn_matches; node != NULL; node = node->next) {
+ usb = node->data;
+ if (usb && usb->bus == bus && usb->address == address)
+ break; /* found */
+ }
+ if (conn_matches && !node)
+ return NULL; /* no match */
+
+ ret = libusb_get_device_descriptor(dev, &des);
+ if (ret != 0) {
+ sr_err("Failed to get USB device descriptor: %s.",
+ libusb_error_name(ret));
+ return NULL;
+ }
+ vid = des.idVendor;
+ pid = des.idProduct;
+
+ /* Create sigrok device instance. */
+ if (vid == USB_VID_SYSCLK && pid == USB_PID_LWLA1016) {
+ model = &lwla1016_info;
+ } else if (vid == USB_VID_SYSCLK && pid == USB_PID_LWLA1034) {
+ model = &lwla1034_info;
+ } else {
+ if (conn_matches)
+ sr_warn("USB device %d.%d (%04x:%04x) is not a"
+ " SysClk LWLA.", bus, address, vid, pid);
+ return NULL;
}
+ sdi = dev_inst_new(model);
+
+ sdi->inst_type = SR_INST_USB;
+ sdi->conn = sr_usb_dev_inst_new(bus, address, NULL);
return sdi;
}
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
- GSList *usb_devices, *devices, *node;
+ GSList *conn_devices, *devices, *node;
struct drv_context *drvc;
struct sr_dev_inst *sdi;
- struct sr_usb_dev_inst *usb;
struct sr_config *src;
const char *conn;
+ libusb_device **devlist;
+ ssize_t num_devs, i;
- drvc = di->priv;
- conn = USB_VID_PID;
+ drvc = di->context;
+ conn = NULL;
+ conn_devices = NULL;
+ devices = NULL;
for (node = options; node != NULL; node = node->next) {
src = node->data;
break;
}
}
- usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
- devices = NULL;
+ if (conn) {
+ /* Find devices matching the connection specification. */
+ conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
+ }
- for (node = usb_devices; node != NULL; node = node->next) {
- usb = node->data;
+ /* List all libusb devices. */
+ num_devs = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
+ if (num_devs < 0) {
+ sr_err("Failed to list USB devices: %s.",
+ libusb_error_name(num_devs));
+ g_slist_free_full(conn_devices,
+ (GDestroyNotify)&sr_usb_dev_inst_free);
+ return NULL;
+ }
- /* Create sigrok device instance. */
- sdi = dev_inst_new();
- if (!sdi) {
- sr_usb_dev_inst_free(usb);
- continue;
- }
- sdi->driver = di;
- sdi->inst_type = SR_INST_USB;
- sdi->conn = usb;
+ /* Scan the USB device list for matching LWLA devices. */
+ for (i = 0; i < num_devs; i++) {
+ sdi = dev_inst_new_matching(conn_devices, devlist[i]);
+ if (!sdi)
+ continue; /* no match */
/* Register device instance with driver. */
- drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
}
- g_slist_free(usb_devices);
+ libusb_free_device_list(devlist, 1);
+ g_slist_free_full(conn_devices, (GDestroyNotify)&sr_usb_dev_inst_free);
- return devices;
+ return std_scan_complete(di, devices);
}
-static GSList *dev_list(const struct sr_dev_driver *di)
-{
- struct drv_context *drvc;
-
- drvc = di->priv;
-
- return drvc->instances;
-}
-
-static void clear_dev_context(void *priv)
+/* Drain any pending data from the USB transfer buffers on the device.
+ * This may be necessary e.g. after a crash or generally to clean up after
+ * an abnormal condition.
+ */
+static int drain_usb(struct sr_usb_dev_inst *usb, unsigned int endpoint)
{
- struct dev_context *devc;
-
- devc = priv;
-
- sr_dbg("Device context cleared.");
-
- lwla_free_acquisition_state(devc->acquisition);
- g_free(devc);
-}
+ int drained, xfer_len, ret;
+ unsigned char buf[512];
+ const unsigned int drain_timeout_ms = 10;
+
+ drained = 0;
+ do {
+ xfer_len = 0;
+ ret = libusb_bulk_transfer(usb->devhdl, endpoint,
+ buf, sizeof(buf), &xfer_len,
+ drain_timeout_ms);
+ drained += xfer_len;
+ } while (ret == LIBUSB_SUCCESS && xfer_len != 0);
+
+ if (ret != LIBUSB_SUCCESS && ret != LIBUSB_ERROR_TIMEOUT) {
+ sr_err("Failed to drain USB endpoint %u: %s.",
+ endpoint & (LIBUSB_ENDPOINT_IN - 1),
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+ if (drained > 0) {
+ sr_warn("Drained %d bytes from USB endpoint %u.",
+ drained, endpoint & (LIBUSB_ENDPOINT_IN - 1));
+ }
-static int dev_clear(const struct sr_dev_driver *di)
-{
- return std_dev_clear(di, &clear_dev_context);
+ return SR_OK;
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct drv_context *drvc;
+ struct dev_context *devc;
struct sr_usb_dev_inst *usb;
- int ret;
+ int i, ret;
- drvc = di->priv;
+ drvc = sdi->driver->context;
+ devc = sdi->priv;
+ usb = sdi->conn;
- if (!drvc) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
+ /* Try the whole shebang three times, fingers crossed. */
+ for (i = 0; i < 3; i++) {
+ ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
+ if (ret != SR_OK)
+ return ret;
+
+ ret = libusb_set_configuration(usb->devhdl, USB_CONFIG);
+ if (ret != LIBUSB_SUCCESS) {
+ sr_err("Failed to set USB configuration: %s.",
+ libusb_error_name(ret));
+ sr_usb_close(usb);
+ return SR_ERR;
+ }
- usb = sdi->conn;
+ ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
+ if (ret != LIBUSB_SUCCESS) {
+ sr_err("Failed to claim interface: %s.",
+ libusb_error_name(ret));
+ sr_usb_close(usb);
+ return SR_ERR;
+ }
- ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
- if (ret != SR_OK)
- return ret;
+ ret = drain_usb(usb, EP_REPLY);
+ if (ret != SR_OK) {
+ sr_usb_close(usb);
+ return ret;
+ }
+ /* This delay appears to be necessary for reliable operation. */
+ g_usleep(30 * 1000);
- ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
- if (ret < 0) {
- sr_err("Failed to claim interface: %s.",
- libusb_error_name(ret));
- return SR_ERR;
- }
+ devc->active_fpga_config = FPGA_NOCONF;
+ devc->short_transfer_quirk = FALSE;
+ devc->state = STATE_IDLE;
- sdi->status = SR_ST_INITIALIZING;
+ ret = (*devc->model->apply_fpga_config)(sdi);
- ret = lwla_init_device(sdi);
+ if (ret == SR_OK)
+ ret = (*devc->model->device_init_check)(sdi);
+ if (ret == SR_OK)
+ break;
- if (ret == SR_OK)
- sdi->status = SR_ST_ACTIVE;
+ /* Rinse and repeat. */
+ sr_usb_close(usb);
+ }
+ if (ret == SR_OK && devc->short_transfer_quirk)
+ sr_warn("Short transfer quirk detected! "
+ "Memory reads will be slow.");
return ret;
}
static int dev_close(struct sr_dev_inst *sdi)
{
+ struct dev_context *devc;
struct sr_usb_dev_inst *usb;
+ int ret;
- if (!di->priv) {
- sr_err("Driver was not initialized.");
- return SR_ERR;
- }
-
+ devc = sdi->priv;
usb = sdi->conn;
- if (!usb->devhdl)
- return SR_OK;
- sdi->status = SR_ST_INACTIVE;
+ if (devc->acquisition) {
+ sr_err("Cannot close device during acquisition!");
+ /* Request stop, leak handle, and prepare for the worst. */
+ devc->cancel_requested = TRUE;
+ return SR_ERR_BUG;
+ }
- /* Trigger download of the shutdown bitstream. */
- if (lwla_set_clock_config(sdi) != SR_OK)
- sr_err("Unable to shut down device.");
+ /* Download of the shutdown bitstream, if any. */
+ ret = (*devc->model->apply_fpga_config)(sdi);
+ if (ret != SR_OK)
+ sr_warn("Unable to shut down device.");
libusb_release_interface(usb->devhdl, USB_INTERFACE);
- libusb_close(usb->devhdl);
- usb->devhdl = NULL;
+ sr_usb_close(usb);
return SR_OK;
}
-static int cleanup(const struct sr_dev_driver *di)
+/* Check whether the device options contain a specific key.
+ * Also match against get/set/list bits if specified.
+ */
+static int has_devopt(const struct model_info *model, uint32_t key)
{
- return dev_clear(di);
+ unsigned int i;
+
+ for (i = 0; i < model->num_devopts; i++) {
+ if ((model->devopts[i] & (SR_CONF_MASK | key)) == key)
+ return TRUE;
+ }
+
+ return FALSE;
}
-static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+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;
- size_t idx;
+ unsigned int idx;
(void)cg;
devc = sdi->priv;
+ if (!has_devopt(devc->model, key | SR_CONF_GET))
+ return SR_ERR_NA;
+
switch (key) {
case SR_CONF_SAMPLERATE:
*data = g_variant_new_uint64(devc->samplerate);
case SR_CONF_LIMIT_SAMPLES:
*data = g_variant_new_uint64(devc->limit_samples);
break;
+ case SR_CONF_RLE:
+ *data = g_variant_new_boolean(devc->cfg_rle);
+ break;
case SR_CONF_EXTERNAL_CLOCK:
*data = g_variant_new_boolean(devc->cfg_clock_source
== CLOCK_EXT_CLK);
*data = g_variant_new_string(signal_edge_names[idx]);
break;
default:
- return SR_ERR_NA;
+ /* Must not happen for a key listed in devopts. */
+ return SR_ERR_BUG;
}
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)
+static int config_set(uint32_t key, GVariant *data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
uint64_t value;
struct dev_context *devc;
(void)cg;
+ if (!sdi)
+ return SR_ERR_ARG;
+
devc = sdi->priv;
- if (!devc)
- return SR_ERR_DEV_CLOSED;
+
+ if (!has_devopt(devc->model, key | SR_CONF_SET))
+ return SR_ERR_NA;
switch (key) {
case SR_CONF_SAMPLERATE:
value = g_variant_get_uint64(data);
- if (value < samplerates[ARRAY_SIZE(samplerates) - 1]
- || value > samplerates[0])
+ if (value < devc->model->samplerates[devc->model->num_samplerates - 1]
+ || value > devc->model->samplerates[0])
return SR_ERR_SAMPLERATE;
devc->samplerate = value;
break;
return SR_ERR_ARG;
devc->limit_samples = value;
break;
+ case SR_CONF_RLE:
+ devc->cfg_rle = g_variant_get_boolean(data);
+ break;
case SR_CONF_EXTERNAL_CLOCK:
devc->cfg_clock_source = (g_variant_get_boolean(data))
? CLOCK_EXT_CLK : CLOCK_INTERNAL;
break;
case SR_CONF_CLOCK_EDGE:
- idx = lookup_index(data, signal_edge_names,
- ARRAY_SIZE(signal_edge_names));
- if (idx < 0)
+ if ((idx = std_str_idx(data, ARRAY_AND_SIZE(signal_edge_names))) < 0)
return SR_ERR_ARG;
devc->cfg_clock_edge = idx;
break;
case SR_CONF_TRIGGER_SOURCE:
- idx = lookup_index(data, trigger_source_names,
- ARRAY_SIZE(trigger_source_names));
- if (idx < 0)
+ if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_source_names))) < 0)
return SR_ERR_ARG;
devc->cfg_trigger_source = idx;
break;
case SR_CONF_TRIGGER_SLOPE:
- idx = lookup_index(data, signal_edge_names,
- ARRAY_SIZE(signal_edge_names));
- if (idx < 0)
+ if ((idx = std_str_idx(data, ARRAY_AND_SIZE(signal_edge_names))) < 0)
return SR_ERR_ARG;
devc->cfg_trigger_slope = idx;
break;
default:
- return SR_ERR_NA;
+ /* Must not happen for a key listed in devopts. */
+ return SR_ERR_BUG;
}
return SR_OK;
}
static int config_channel_set(const struct sr_dev_inst *sdi,
- struct sr_channel *ch, unsigned int changes)
+ struct sr_channel *ch, unsigned int changes)
{
uint64_t channel_bit;
struct dev_context *devc;
+ if (!sdi)
+ return SR_ERR_ARG;
+
devc = sdi->priv;
- if (!devc)
- return SR_ERR_DEV_CLOSED;
- if (ch->index < 0 || ch->index >= NUM_CHANNELS) {
+ if (ch->index < 0 || ch->index >= devc->model->num_channels) {
sr_err("Channel index %d out of range.", ch->index);
return SR_ERR_BUG;
}
- channel_bit = (uint64_t)1 << ch->index;
if ((changes & SR_CHANNEL_SET_ENABLED) != 0) {
- /* Enable or disable input channel for this channel. */
+ channel_bit = UINT64_C(1) << ch->index;
+
+ /* Enable or disable logic input for this channel. */
if (ch->enabled)
devc->channel_mask |= channel_bit;
else
return SR_OK;
}
-static int config_commit(const struct sr_dev_inst *sdi)
+/* Derive trigger masks from the session's trigger configuration. */
+static int prepare_trigger_masks(const struct sr_dev_inst *sdi)
{
- if (sdi->status != SR_ST_ACTIVE) {
- sr_err("Device not ready (status %d).", (int)sdi->status);
- return SR_ERR;
+ uint64_t trigger_mask, trigger_values, trigger_edge_mask;
+ uint64_t level_bit, type_bit;
+ struct dev_context *devc;
+ struct sr_trigger *trigger;
+ struct sr_trigger_stage *stage;
+ struct sr_trigger_match *match;
+ const GSList *node;
+ int idx;
+ enum sr_trigger_matches trg;
+
+ devc = sdi->priv;
+
+ trigger = sr_session_trigger_get(sdi->session);
+ if (!trigger || !trigger->stages)
+ return SR_OK;
+
+ if (trigger->stages->next) {
+ sr_err("This device only supports 1 trigger stage.");
+ return SR_ERR_ARG;
}
+ stage = trigger->stages->data;
- return lwla_set_clock_config(sdi);
-}
+ trigger_mask = 0;
+ trigger_values = 0;
+ trigger_edge_mask = 0;
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- GVariant *gvar;
- GVariantBuilder gvb;
+ for (node = stage->matches; node; node = node->next) {
+ match = node->data;
- (void)sdi;
- (void)cg;
+ if (!match->channel->enabled)
+ continue; /* Ignore disabled channel. */
- 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:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
- break;
- case SR_CONF_SAMPLERATE:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
- gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
- samplerates, ARRAY_SIZE(samplerates),
- sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_TRIGGER_MATCH:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- trigger_matches, ARRAY_SIZE(trigger_matches),
- sizeof(int32_t));
- break;
- case SR_CONF_TRIGGER_SOURCE:
- *data = g_variant_new_strv(trigger_source_names,
- ARRAY_SIZE(trigger_source_names));
- break;
- case SR_CONF_TRIGGER_SLOPE:
- case SR_CONF_CLOCK_EDGE:
- *data = g_variant_new_strv(signal_edge_names,
- ARRAY_SIZE(signal_edge_names));
- break;
- default:
- return SR_ERR_NA;
+ idx = match->channel->index;
+ trg = match->match;
+
+ if (idx < 0 || idx >= devc->model->num_channels) {
+ sr_err("Channel index %d out of range.", idx);
+ return SR_ERR_BUG; /* Should not happen. */
+ }
+ if (trg != SR_TRIGGER_ZERO
+ && trg != SR_TRIGGER_ONE
+ && trg != SR_TRIGGER_RISING
+ && trg != SR_TRIGGER_FALLING) {
+ sr_err("Unsupported trigger match for CH%d.", idx + 1);
+ return SR_ERR_ARG;
+ }
+ level_bit = (trg == SR_TRIGGER_ONE
+ || trg == SR_TRIGGER_RISING) ? 1 : 0;
+ type_bit = (trg == SR_TRIGGER_RISING
+ || trg == SR_TRIGGER_FALLING) ? 1 : 0;
+
+ trigger_mask |= UINT64_C(1) << idx;
+ trigger_values |= level_bit << idx;
+ trigger_edge_mask |= type_bit << idx;
}
+ devc->trigger_mask = trigger_mask;
+ devc->trigger_values = trigger_values;
+ devc->trigger_edge_mask = trigger_edge_mask;
return SR_OK;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+static int config_commit(const struct sr_dev_inst *sdi)
{
- struct drv_context *drvc;
struct dev_context *devc;
- struct acquisition_state *acq;
int ret;
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
devc = sdi->priv;
- drvc = di->priv;
if (devc->acquisition) {
sr_err("Acquisition still in progress?");
return SR_ERR;
}
- acq = lwla_alloc_acquisition_state();
- if (!acq)
- return SR_ERR_MALLOC;
-
- devc->stopping_in_progress = FALSE;
- devc->transfer_error = FALSE;
- sr_info("Starting acquisition.");
+ ret = prepare_trigger_masks(sdi);
+ if (ret != SR_OK)
+ return ret;
- devc->acquisition = acq;
- lwla_convert_trigger(sdi);
- ret = lwla_setup_acquisition(sdi);
+ ret = (*devc->model->apply_fpga_config)(sdi);
if (ret != SR_OK) {
- sr_err("Failed to set up acquisition.");
- devc->acquisition = NULL;
- lwla_free_acquisition_state(acq);
+ sr_err("Failed to apply FPGA configuration.");
return ret;
}
- ret = lwla_start_acquisition(sdi);
- if (ret != SR_OK) {
- sr_err("Failed to start acquisition.");
- devc->acquisition = NULL;
- lwla_free_acquisition_state(acq);
- return ret;
+ return SR_OK;
+}
+
+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;
+
+ devc = (sdi) ? sdi->priv : NULL;
+
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ case SR_CONF_DEVICE_OPTIONS:
+ return std_opts_config_list(key, data, sdi, cg,
+ ARRAY_AND_SIZE(scanopts), ARRAY_AND_SIZE(drvopts),
+ (devc) ? devc->model->devopts : NULL,
+ (devc) ? devc->model->num_devopts : 0);
}
- usb_source_add(sdi->session, drvc->sr_ctx, 100, &lwla_receive_data,
- (struct sr_dev_inst *)sdi);
- sr_info("Waiting for data.");
+ if (!has_devopt(devc->model, key | SR_CONF_LIST))
+ return SR_ERR_NA;
- /* Send header packet to the session bus. */
- std_session_send_df_header(sdi, LOG_PREFIX);
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ *data = std_gvar_samplerates(devc->model->samplerates, devc->model->num_samplerates);
+ break;
+ case SR_CONF_TRIGGER_MATCH:
+ *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
+ break;
+ case SR_CONF_TRIGGER_SOURCE:
+ *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_source_names));
+ break;
+ case SR_CONF_TRIGGER_SLOPE:
+ case SR_CONF_CLOCK_EDGE:
+ *data = g_variant_new_strv(ARRAY_AND_SIZE(signal_edge_names));
+ break;
+ default:
+ /* Must not happen for a key listed in devopts. */
+ return SR_ERR_BUG;
+ }
return SR_OK;
}
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+/* Set up the device hardware to begin capturing samples as soon as the
+ * configured trigger conditions are met, or immediately if no triggers
+ * are configured.
+ */
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
- (void)cb_data;
+ return lwla_start_acquisition(sdi);
+}
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
- sr_dbg("Stopping acquisition.");
+ devc = sdi->priv;
- sdi->status = SR_ST_STOPPING;
+ if (devc->state != STATE_IDLE && !devc->cancel_requested) {
+ devc->cancel_requested = TRUE;
+ sr_dbg("Requesting cancel.");
+ }
return SR_OK;
}
-SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info = {
+static struct sr_dev_driver sysclk_lwla_driver_info = {
.name = "sysclk-lwla",
.longname = "SysClk LWLA series",
.api_version = 1,
- .init = init,
- .cleanup = cleanup,
+ .init = std_init,
+ .cleanup = std_cleanup,
.scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
+ .dev_list = std_dev_list,
+ .dev_clear = std_dev_clear,
.config_get = config_get,
.config_set = config_set,
.config_channel_set = config_channel_set,
.dev_close = dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
+ .context = NULL,
};
+SR_REGISTER_DEV_DRIVER(sysclk_lwla_driver_info);
projects / libsigrok.git / blobdiff