/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
* Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
*
{0x0c12, 0x7002, "LAP-16128U", 16, 128, 200},
{0x0c12, 0x7009, "LAP-C(16064)", 16, 64, 100},
{0x0c12, 0x700a, "LAP-C(16128)", 16, 128, 200},
- /* TODO: We don't know anything about these.
{0x0c12, 0x700b, "LAP-C(32128)", 32, 128, 200},
{0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200},
{0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200},
- */
{0x0c12, 0x700e, "LAP-C(16032)", 16, 32, 100},
{0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200},
{ 0, 0, 0, 0, 0, 0 }
SR_CONF_LOGIC_ANALYZER,
SR_CONF_SAMPLERATE,
SR_CONF_CAPTURE_RATIO,
+ SR_CONF_VOLTAGE_THRESHOLD,
SR_CONF_LIMIT_SAMPLES,
};
static const char *probe_names[] = {
"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
"B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7",
+ "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7",
+ "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
NULL,
};
SR_MHZ(200),
};
-static int hw_dev_close(struct sr_dev_inst *sdi);
+static int dev_close(struct sr_dev_inst *sdi);
#if 0
static int configure_probes(const struct sr_dev_inst *sdi)
return SR_OK;
}
-static int clear_instances(void)
+static int init(struct sr_context *sr_ctx)
{
- GSList *l;
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
-
- drvc = di->priv;
- for (l = drvc->instances; l; l = l->next) {
- sdi = l->data;
- if (!(devc = sdi->priv)) {
- /* Log error, but continue cleaning up the rest. */
- sr_err("%s: sdi->priv was NULL, continuing", __func__);
- continue;
- }
- sr_usb_dev_inst_free(devc->usb);
- /* Properly close all devices... */
- hw_dev_close(sdi);
- /* ...and free all their memory. */
- sr_dev_inst_free(sdi);
- }
- g_slist_free(drvc->instances);
- drvc->instances = NULL;
-
- return SR_OK;
+ return std_init(sr_ctx, di, LOG_PREFIX);
}
-static int hw_init(struct sr_context *sr_ctx)
-{
- return std_hw_init(sr_ctx, di, "zeroplus: ");
-}
-
-static GSList *hw_scan(GSList *options)
+static GSList *scan(GSList *options)
{
struct sr_dev_inst *sdi;
struct sr_probe *probe;
devices = NULL;
- clear_instances();
-
/* Find all ZEROPLUS analyzers and add them to device list. */
devcnt = 0;
libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */
devc->prof = prof;
devc->num_channels = prof->channels;
#ifdef ZP_EXPERIMENTAL
- devc->max_memory_size = 128 * 1024;
+ devc->max_sample_depth = 128 * 1024;
devc->max_samplerate = 200;
#else
- devc->max_memory_size = prof->sample_depth * 1024;
+ devc->max_sample_depth = prof->sample_depth * 1024;
devc->max_samplerate = prof->max_sampling_freq;
#endif
devc->max_samplerate *= SR_MHZ(1);
devices = g_slist_append(devices, sdi);
drvc->instances = g_slist_append(drvc->instances, sdi);
- devc->usb = sr_usb_dev_inst_new(
+ 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);
devcnt++;
return devices;
}
-static GSList *hw_dev_list(void)
+static GSList *dev_list(void)
{
return ((struct drv_context *)(di->priv))->instances;
}
-static int hw_dev_open(struct sr_dev_inst *sdi)
+static int dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct drv_context *drvc;
+ struct sr_usb_dev_inst *usb;
libusb_device **devlist, *dev;
struct libusb_device_descriptor des;
int device_count, ret, i;
drvc = di->priv;
+ usb = sdi->conn;
if (!(devc = sdi->priv)) {
sr_err("%s: sdi->priv was NULL", __func__);
libusb_error_name(ret));
continue;
}
- if (libusb_get_bus_number(devlist[i]) == devc->usb->bus
- && libusb_get_device_address(devlist[i]) == devc->usb->address) {
+ if (libusb_get_bus_number(devlist[i]) == usb->bus
+ && libusb_get_device_address(devlist[i]) == usb->address) {
dev = devlist[i];
break;
}
}
if (!dev) {
sr_err("Device on bus %d address %d disappeared!",
- devc->usb->bus, devc->usb->address);
+ usb->bus, usb->address);
return SR_ERR;
}
- if (!(ret = libusb_open(dev, &(devc->usb->devhdl)))) {
+ if (!(ret = libusb_open(dev, &(usb->devhdl)))) {
sdi->status = SR_ST_ACTIVE;
sr_info("Opened device %d on %d.%d interface %d.",
- sdi->index, devc->usb->bus,
- devc->usb->address, USB_INTERFACE);
+ sdi->index, usb->bus, usb->address, USB_INTERFACE);
} else {
sr_err("Failed to open device: %s.", libusb_error_name(ret));
return SR_ERR;
}
- ret = libusb_set_configuration(devc->usb->devhdl, USB_CONFIGURATION);
+ ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION);
if (ret < 0) {
sr_err("Unable to set USB configuration %d: %s.",
USB_CONFIGURATION, libusb_error_name(ret));
return SR_ERR;
}
- ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
+ ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
if (ret != 0) {
sr_err("Unable to claim interface: %s.",
libusb_error_name(ret));
}
/* Set default configuration after power on. */
- if (analyzer_read_status(devc->usb->devhdl) == 0)
- analyzer_configure(devc->usb->devhdl);
+ if (analyzer_read_status(usb->devhdl) == 0)
+ analyzer_configure(usb->devhdl);
- analyzer_reset(devc->usb->devhdl);
- analyzer_initialize(devc->usb->devhdl);
+ analyzer_reset(usb->devhdl);
+ analyzer_initialize(usb->devhdl);
//analyzer_set_memory_size(MEMORY_SIZE_512K);
// analyzer_set_freq(g_freq, g_freq_scale);
devc->cur_samplerate = SR_MHZ(1);
}
+ if (devc->cur_threshold == 0)
+ set_voltage_threshold(devc, 1.5);
+
return SR_OK;
}
-static int hw_dev_close(struct sr_dev_inst *sdi)
+static int dev_close(struct sr_dev_inst *sdi)
{
- struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
- devc = sdi->priv;
+ usb = sdi->conn;
- if (!devc->usb->devhdl)
+ if (!usb->devhdl)
return SR_ERR;
sr_info("Closing device %d on %d.%d interface %d.", sdi->index,
- devc->usb->bus, devc->usb->address, USB_INTERFACE);
- libusb_release_interface(devc->usb->devhdl, USB_INTERFACE);
- libusb_reset_device(devc->usb->devhdl);
- libusb_close(devc->usb->devhdl);
- devc->usb->devhdl = NULL;
+ usb->bus, usb->address, USB_INTERFACE);
+ libusb_release_interface(usb->devhdl, USB_INTERFACE);
+ libusb_reset_device(usb->devhdl);
+ libusb_close(usb->devhdl);
+ usb->devhdl = NULL;
sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
-static int hw_cleanup(void)
+static int cleanup(void)
{
- struct drv_context *drvc;
-
- if (!(drvc = di->priv))
- return SR_OK;
-
- clear_instances();
-
- return SR_OK;
+ return std_dev_clear(di, NULL);
}
-static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
{
struct dev_context *devc;
+ (void)probe_group;
+
switch (id) {
case SR_CONF_SAMPLERATE:
if (sdi) {
sr_spew("Returning samplerate: %" PRIu64 "Hz.",
devc->cur_samplerate);
} else
- return SR_ERR;
+ return SR_ERR_ARG;
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ if (sdi) {
+ devc = sdi->priv;
+ *data = g_variant_new_uint64(devc->capture_ratio);
+ } else
+ return SR_ERR_ARG;
+ break;
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ if (sdi) {
+ GVariant *range[2];
+ devc = sdi->priv;
+ 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);
+ } else
+ return SR_ERR_ARG;
break;
default:
return SR_ERR_NA;
return SR_OK;
}
-static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
{
struct dev_context *devc;
+ gdouble low, high;
- if (!sdi) {
- sr_err("%s: sdi was NULL", __func__);
- return SR_ERR_ARG;
- }
+ (void)probe_group;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
if (!(devc = sdi->priv)) {
sr_err("%s: sdi->priv was NULL", __func__);
return set_limit_samples(devc, g_variant_get_uint64(data));
case SR_CONF_CAPTURE_RATIO:
return set_capture_ratio(devc, g_variant_get_uint64(data));
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ g_variant_get(data, "(dd)", &low, &high);
+ return set_voltage_threshold(devc, (low + high) / 2.0);
default:
return SR_ERR_NA;
}
return SR_OK;
}
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
{
struct dev_context *devc;
- GVariant *gvar;
+ GVariant *gvar, *grange[2];
GVariantBuilder gvb;
+ double v;
+ GVariant *range[2];
+
+ (void)probe_group;
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
case SR_CONF_TRIGGER_TYPE:
*data = g_variant_new_string(TRIGGER_TYPE);
break;
+ case SR_CONF_VOLTAGE_THRESHOLD:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ for (v = -6.0; v <= 6.0; 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_LIMIT_SAMPLES:
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ grange[0] = g_variant_new_uint64(0);
+ grange[1] = g_variant_new_uint64(devc->max_sample_depth);
+ *data = g_variant_new_tuple(grange, 2);
+ break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
+static int dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
struct sr_datafeed_packet packet;
struct sr_datafeed_logic logic;
- //uint64_t samples_read;
+ unsigned int samples_read;
int res;
unsigned int packet_num, n;
unsigned char *buf;
- struct dev_context *devc;
+ unsigned int status;
+ unsigned int stop_address;
+ unsigned int now_address;
+ unsigned int trigger_address;
+ unsigned int trigger_offset;
+ unsigned int triggerbar;
+ unsigned int ramsize_trigger;
+ unsigned int memory_size;
+ unsigned int valid_samples;
+ unsigned int discard;
+ int trigger_now;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
if (!(devc = sdi->priv)) {
sr_err("%s: sdi->priv was NULL", __func__);
return SR_ERR;
}
+ usb = sdi->conn;
+
set_triggerbar(devc);
/* Push configured settings to device. */
- analyzer_configure(devc->usb->devhdl);
+ analyzer_configure(usb->devhdl);
- analyzer_start(devc->usb->devhdl);
+ analyzer_start(usb->devhdl);
sr_info("Waiting for data.");
- analyzer_wait_data(devc->usb->devhdl);
+ analyzer_wait_data(usb->devhdl);
- sr_info("Stop address = 0x%x.",
- analyzer_get_stop_address(devc->usb->devhdl));
- sr_info("Now address = 0x%x.",
- analyzer_get_now_address(devc->usb->devhdl));
- sr_info("Trigger address = 0x%x.",
- analyzer_get_trigger_address(devc->usb->devhdl));
+ status = analyzer_read_status(usb->devhdl);
+ stop_address = analyzer_get_stop_address(usb->devhdl);
+ now_address = analyzer_get_now_address(usb->devhdl);
+ trigger_address = analyzer_get_trigger_address(usb->devhdl);
+
+ triggerbar = analyzer_get_triggerbar_address();
+ ramsize_trigger = analyzer_get_ramsize_trigger_address();
+
+ n = get_memory_size(devc->memory_size);
+ memory_size = n / 4;
+
+ sr_info("Status = 0x%x.", status);
+ sr_info("Stop address = 0x%x.", stop_address);
+ sr_info("Now address = 0x%x.", now_address);
+ sr_info("Trigger address = 0x%x.", trigger_address);
+ sr_info("Triggerbar address = 0x%x.", triggerbar);
+ sr_info("Ramsize trigger = 0x%x.", ramsize_trigger);
+ sr_info("Memory size = 0x%x.", memory_size);
/* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Check for empty capture */
+ if ((status & STATUS_READY) && !stop_address) {
+ packet.type = SR_DF_END;
+ sr_session_send(cb_data, &packet);
+ return SR_OK;
+ }
if (!(buf = g_try_malloc(PACKET_SIZE))) {
sr_err("Packet buffer malloc failed.");
return SR_ERR_MALLOC;
}
- //samples_read = 0;
- analyzer_read_start(devc->usb->devhdl);
+ /* Check if the trigger is in the samples we are throwing away */
+ trigger_now = now_address == trigger_address ||
+ ((now_address + 1) % memory_size) == trigger_address;
+
+ /*
+ * STATUS_READY doesn't clear until now_address advances past
+ * addr 0, but for our logic, clear it in that case
+ */
+ if (!now_address)
+ status &= ~STATUS_READY;
+
+ analyzer_read_start(usb->devhdl);
+
+ /* Calculate how much data to discard */
+ discard = 0;
+ if (status & STATUS_READY) {
+ /*
+ * We haven't wrapped around, we need to throw away data from
+ * our current position to the end of the buffer.
+ * Additionally, the first two samples captured are always
+ * bogus.
+ */
+ discard += memory_size - now_address + 2;
+ now_address = 2;
+ }
+
+ /* If we have more samples than we need, discard them */
+ valid_samples = (stop_address - now_address) % memory_size;
+ if (valid_samples > ramsize_trigger + triggerbar) {
+ discard += valid_samples - (ramsize_trigger + triggerbar);
+ now_address += valid_samples - (ramsize_trigger + triggerbar);
+ }
+
+ sr_info("Need to discard %d samples.", discard);
+
+ /* Calculate how far in the trigger is */
+ if (trigger_now)
+ trigger_offset = 0;
+ else
+ trigger_offset = (trigger_address - now_address) % memory_size;
+
+ /* Recalculate the number of samples available */
+ valid_samples = (stop_address - now_address) % memory_size;
+
/* Send the incoming transfer to the session bus. */
- n = get_memory_size(devc->memory_size);
- if (devc->max_memory_size * 4 < n)
- n = devc->max_memory_size * 4;
+ samples_read = 0;
for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) {
- res = analyzer_read_data(devc->usb->devhdl, buf, PACKET_SIZE);
+ unsigned int len;
+ unsigned int buf_offset;
+
+ res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE);
sr_info("Tried to read %d bytes, actually read %d bytes.",
PACKET_SIZE, res);
+ if (discard >= PACKET_SIZE / 4) {
+ discard -= PACKET_SIZE / 4;
+ continue;
+ }
+
+ len = PACKET_SIZE - discard * 4;
+ buf_offset = discard * 4;
+ discard = 0;
+
+ /* Check if we've read all the samples */
+ if (samples_read + len / 4 >= valid_samples)
+ len = (valid_samples - samples_read) * 4;
+ if (!len)
+ break;
+
+ if (samples_read < trigger_offset &&
+ samples_read + len / 4 > trigger_offset) {
+ /* Send out samples remaining before trigger */
+ packet.type = SR_DF_LOGIC;
+ packet.payload = &logic;
+ logic.length = (trigger_offset - samples_read) * 4;
+ logic.unitsize = 4;
+ logic.data = buf + buf_offset;
+ sr_session_send(cb_data, &packet);
+ len -= logic.length;
+ samples_read += logic.length / 4;
+ buf_offset += logic.length;
+ }
+
+ if (samples_read == trigger_offset) {
+ /* Send out trigger */
+ packet.type = SR_DF_TRIGGER;
+ packet.payload = NULL;
+ sr_session_send(cb_data, &packet);
+ }
+
+ /* Send out data (or data after trigger) */
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
- logic.length = PACKET_SIZE;
+ logic.length = len;
logic.unitsize = 4;
- logic.data = buf;
+ logic.data = buf + buf_offset;
sr_session_send(cb_data, &packet);
- //samples_read += res / 4;
+ samples_read += len / 4;
}
- analyzer_read_stop(devc->usb->devhdl);
+ analyzer_read_stop(usb->devhdl);
g_free(buf);
packet.type = SR_DF_END;
}
/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
-static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- struct sr_datafeed_packet packet;
struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ struct sr_datafeed_packet packet;
packet.type = SR_DF_END;
sr_session_send(cb_data, &packet);
return SR_ERR_BUG;
}
- analyzer_reset(devc->usb->devhdl);
+ usb = sdi->conn;
+ analyzer_reset(usb->devhdl);
/* TODO: Need to cancel and free any queued up transfers. */
return SR_OK;
.name = "zeroplus-logic-cube",
.longname = "ZEROPLUS Logic Cube LAP-C series",
.api_version = 1,
- .init = hw_init,
- .cleanup = hw_cleanup,
- .scan = hw_scan,
- .dev_list = hw_dev_list,
- .dev_clear = hw_cleanup,
+ .init = init,
+ .cleanup = cleanup,
+ .scan = scan,
+ .dev_list = dev_list,
+ .dev_clear = NULL,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
- .dev_open = hw_dev_open,
- .dev_close = hw_dev_close,
- .dev_acquisition_start = hw_dev_acquisition_start,
- .dev_acquisition_stop = hw_dev_acquisition_stop,
+ .dev_open = dev_open,
+ .dev_close = dev_close,
+ .dev_acquisition_start = dev_acquisition_start,
+ .dev_acquisition_stop = dev_acquisition_stop,
.priv = NULL,
};