#include <config.h>
#include "protocol.h"
+static const uint32_t drvopts[] = {
+ /* Device class */
+ SR_CONF_POWER_SUPPLY,
+};
+
+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+static const uint32_t devopts[] = {
+ /* Device class */
+ SR_CONF_POWER_SUPPLY,
+ /* Acquisition modes. */
+ SR_CONF_CONTINUOUS,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
+ /* Device configuration */
+ SR_CONF_VOLTAGE | SR_CONF_GET,
+ SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_CURRENT | SR_CONF_GET,
+ SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
+};
+
+static const struct korad_kdxxxxp_model models[] = {
+ /* Device enum, vendor, model, ID reply, channels, voltage, current */
+ {VELLEMAN_LABPS_3005D, "Velleman", "LABPS3005D",
+ "VELLEMANLABPS3005DV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
+ {0, NULL, NULL, NULL, 0, {0, 0, 0}, {0, 0, 0}}
+};
+
SR_PRIV struct sr_dev_driver korad_kdxxxxp_driver_info;
static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
struct drv_context *drvc;
- GSList *devices;
-
- (void)options;
+ struct dev_context *devc;
+ GSList *devices, *l;
+ struct sr_dev_inst *sdi;
+ struct sr_config *src;
+ const char *conn, *serialcomm;
+ struct sr_serial_dev_inst *serial;
+ char reply[50];
+ int i, model_id;
+ unsigned int len;
devices = NULL;
+ conn = NULL;
+ serialcomm = NULL;
drvc = di->context;
drvc->instances = NULL;
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ 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;
+ case SR_CONF_SERIALCOMM:
+ serialcomm = g_variant_get_string(src->data, NULL);
+ break;
+ default:
+ sr_err("Unknown option %d, skipping.", src->key);
+ break;
+ }
+ }
+
+ if (!conn)
+ return NULL;
+ if (!serialcomm)
+ serialcomm = "9600/8n1";
+
+ serial = sr_serial_dev_inst_new(conn, serialcomm);
+ if (serial_open(serial, SERIAL_RDWR) != SR_OK)
+ return NULL;
+
+ serial_flush(serial);
+
+ /* Get the device model. */
+ len = 0;
+ for (i = 0; models[i].id; i++) {
+ if (strlen(models[i].id) > len)
+ len = strlen(models[i].id);
+ }
+ memset(&reply, 0, sizeof(reply));
+ sr_dbg("Want max %d bytes.", len);
+ if ((korad_kdxxxxp_send_cmd(serial, "*IDN?") < 0))
+ return NULL;
+
+ /* i is used here for debug purposes only. */
+ if ((i = korad_kdxxxxp_read_chars(serial, len, reply)) < 0)
+ return NULL;
+ sr_dbg("Received: %d, %s", i, reply);
+ model_id = -1;
+ for (i = 0; models[i].id; i++) {
+ if (!strcmp(models[i].id, reply))
+ model_id = i;
+ }
+ if (model_id < 0) {
+ sr_err("Unknown model ID '%s' detected, aborting.", reply);
+ return NULL;
+ }
+ sr_dbg("Found: %s %s", models[model_id].vendor, models[model_id].name);
+
+ /* Init device instance, etc. */
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->vendor = g_strdup(models[model_id].vendor);
+ sdi->model = g_strdup(models[model_id].name);
+ sdi->inst_type = SR_INST_SERIAL;
+ sdi->conn = serial;
+ sdi->driver = di;
+
+ sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
+
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->model = &models[model_id];
+ devc->reply[5] = 0;
+ devc->req_sent_at = 0;
+ sdi->priv = devc;
+
+ /* Get current status of device. */
+ if (korad_kdxxxxp_get_all_values(serial, devc) < 0)
+ goto exit_err;
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+
+ serial_close(serial);
+ if (!devices)
+ sr_serial_dev_inst_free(serial);
return devices;
+
+exit_err:
+ sr_dev_inst_free(sdi);
+ g_free(devc);
+ sr_dbg("Scan failed.");
+
+ return NULL;
}
static GSList *dev_list(const struct sr_dev_driver *di)
return std_dev_clear(di, NULL);
}
-static int dev_open(struct sr_dev_inst *sdi)
-{
- (void)sdi;
-
- /* TODO: get handle from sdi->conn and open it. */
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- (void)sdi;
-
- /* TODO: get handle from sdi->conn and close it. */
-
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
static int cleanup(const struct sr_dev_driver *di)
{
dev_clear(di);
-
- /* TODO: free other driver resources, if any. */
-
return SR_OK;
}
static int config_get(uint32_t key, GVariant **data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
- (void)sdi;
- (void)data;
(void)cg;
- ret = SR_OK;
+ if (!sdi || !data)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ case SR_CONF_LIMIT_MSEC:
+ *data = g_variant_new_uint64(devc->limit_msec);
+ break;
+ case SR_CONF_VOLTAGE:
+ *data = g_variant_new_double(devc->voltage);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ *data = g_variant_new_double(devc->voltage_max);
+ break;
+ case SR_CONF_CURRENT:
+ *data = g_variant_new_double(devc->current);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ *data = g_variant_new_double(devc->current_max);
+ break;
+ case SR_CONF_ENABLED:
+ *data = g_variant_new_boolean(devc->output_enabled);
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int config_set(uint32_t key, GVariant *data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ double dval;
+ gboolean bval;
- (void)data;
(void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- ret = SR_OK;
+ devc = sdi->priv;
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_MSEC:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_msec = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_samples = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ dval = g_variant_get_double(data);
+ if (dval < devc->model->voltage[0] || dval > devc->model->voltage[1])
+ return SR_ERR_ARG;
+ devc->voltage_max = dval;
+ devc->target = KDXXXXP_VOLTAGE_MAX;
+ if (korad_kdxxxxp_set_value(sdi->conn, devc) < 0)
+ return SR_ERR;
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ dval = g_variant_get_double(data);
+ if (dval < devc->model->current[0] || dval > devc->model->current[1])
+ return SR_ERR_ARG;
+ devc->current_max = dval;
+ devc->target = KDXXXXP_CURRENT_MAX;
+ if (korad_kdxxxxp_set_value(sdi->conn, devc) < 0)
+ return SR_ERR;
+ break;
+ case SR_CONF_ENABLED:
+ bval = g_variant_get_boolean(data);
+ /* Set always so it is possible turn off with sigrok-cli. */
+ devc->output_enabled = bval;
+ devc->target = KDXXXXP_OUTPUT;
+ if (korad_kdxxxxp_set_value(sdi->conn, devc) < 0)
+ return SR_ERR;
+ break;
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- 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)
{
- int ret;
- (void)sdi;
- (void)data;
+ struct dev_context *devc;
+ GVariant *gvar;
+ GVariantBuilder gvb;
+ double dval;
+ int idx;
+
(void)cg;
- ret = SR_OK;
+ /* Always available (with or without sdi). */
+ if (key == SR_CONF_SCAN_OPTIONS) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
+ return SR_OK;
+ }
+
+ /* Return drvopts without sdi (and devopts with sdi, see below). */
+ if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
+ return SR_OK;
+ }
+
+ /* Every other key needs an sdi. */
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+
switch (key) {
- /* TODO */
+ 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_VOLTAGE_TARGET:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, step. */
+ for (idx = 0; idx < 3; idx++) {
+ dval = devc->model->voltage[idx];
+ gvar = g_variant_new_double(dval);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, step. */
+ for (idx = 0; idx < 3; idx++) {
+ dval = devc->model->current[idx];
+ gvar = g_variant_new_double(dval);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
- (void)sdi;
- (void)cb_data;
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ devc = sdi->priv;
+ devc->cb_data = cb_data;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ devc->starttime = g_get_monotonic_time();
+ devc->num_samples = 0;
+ devc->reply_pending = FALSE;
+ devc->req_sent_at = 0;
+ serial = sdi->conn;
+ serial_source_add(sdi->session, serial, G_IO_IN,
+ KDXXXXP_POLL_INTERVAL_MS,
+ korad_kdxxxxp_receive_data, (void *)sdi);
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- (void)cb_data;
-
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: stop acquisition. */
-
- return SR_OK;
+ return std_serial_dev_acquisition_stop(sdi, cb_data,
+ std_serial_dev_close, sdi->conn, LOG_PREFIX);
}
SR_PRIV struct sr_dev_driver korad_kdxxxxp_driver_info = {
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
- .dev_open = dev_open,
- .dev_close = dev_close,
+ .dev_open = std_serial_dev_open,
+ .dev_close = std_serial_dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
.context = NULL,
#include <config.h>
#include "protocol.h"
+#define REQ_TIMEOUT_MS 500
+#define DEVICE_PROCESSING_TIME_MS 80
+
+SR_PRIV int korad_kdxxxxp_send_cmd(struct sr_serial_dev_inst *serial,
+ const char *cmd)
+{
+ int ret;
+
+ sr_dbg("Sending '%s'.", cmd);
+ if ((ret = serial_write_blocking(serial, cmd, strlen(cmd), 0)) < 0) {
+ sr_err("Error sending command: %d.", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+SR_PRIV int korad_kdxxxxp_read_chars(struct sr_serial_dev_inst *serial,
+ int count, char *buf)
+{
+ int ret, received, turns;
+
+ received = 0;
+ turns = 0;
+
+ do {
+ if ((ret = serial_read_blocking(serial, buf + received,
+ count - received,
+ serial_timeout(serial, count))) < 0) {
+ sr_err("Error %d reading %d bytes from device.",
+ ret, count);
+ return ret;
+ }
+ received += ret;
+ turns++;
+ } while ((received < count) && (turns < 100));
+
+ buf[count] = 0;
+
+ sr_spew("Received: '%s'.", buf);
+
+ return ret;
+}
+
+static void give_device_time_to_process(struct dev_context *devc)
+{
+ int64_t sleeping_time;
+
+ sleeping_time = devc->req_sent_at + (DEVICE_PROCESSING_TIME_MS * 1000);
+ sleeping_time -= g_get_monotonic_time();
+
+ if (sleeping_time > 0) {
+ g_usleep(sleeping_time);
+ sr_spew("Sleeping for processing %ld usec", sleeping_time);
+ }
+}
+
+SR_PRIV int korad_kdxxxxp_set_value(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc)
+{
+ char msg[21], *cmd;
+ float value;
+ int ret;
+
+ give_device_time_to_process(devc);
+
+ msg[20] = 0;
+ switch(devc->target){
+ case KDXXXXP_CURRENT:
+ case KDXXXXP_VOLTAGE:
+ case KDXXXXP_STATUS:
+ sr_err("Can't set measurable parameter.");
+ return SR_ERR;
+ case KDXXXXP_CURRENT_MAX:
+ cmd = "ISET1:%05.3f";
+ value = devc->current_max;
+ break;
+ case KDXXXXP_VOLTAGE_MAX:
+ cmd = "VSET1:%05.2f";
+ value = devc->voltage_max;
+ break;
+ case KDXXXXP_OUTPUT:
+ cmd = "OUT%01.0f";
+ value = (devc->output_enabled) ? 1 : 0;
+ break;
+ case KDXXXXP_BEEP:
+ cmd = "BEEP%01.0f";
+ value = (devc->beep_enabled) ? 1 : 0;
+ break;
+ case KDXXXXP_SAVE:
+ cmd = "SAV%01.0f";
+ if (devc->program < 1 || devc->program > 5) {
+ sr_err("Only programs 1-5 supported and %d isn't "
+ "between them.", devc->program);
+ return SR_ERR;
+ }
+ value = devc->program;
+ break;
+ case KDXXXXP_RECALL:
+ cmd = "RCL%01.0f";
+ if (devc->program < 1 || devc->program > 5) {
+ sr_err("Only programs 1-5 supported and %d isn't "
+ "between them.", devc->program);
+ return SR_ERR;
+ }
+ value = devc->program;
+ break;
+ default:
+ sr_err("Don't know how to set %d.", devc->target);
+ return SR_ERR;
+ }
+
+ if (cmd)
+ snprintf(msg, 20, cmd, value);
+
+ ret = korad_kdxxxxp_send_cmd(serial, msg);
+ devc->req_sent_at = g_get_monotonic_time();
+ devc->reply_pending = FALSE;
+
+ return ret;
+}
+
+SR_PRIV int korad_kdxxxxp_query_value(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc)
+{
+ int ret;
+
+ give_device_time_to_process(devc);
+
+ switch(devc->target){
+ case KDXXXXP_CURRENT:
+ /* Read current from device. */
+ ret = korad_kdxxxxp_send_cmd(serial, "IOUT1?");
+ break;
+ case KDXXXXP_CURRENT_MAX:
+ /* Read set current from device. */
+ ret = korad_kdxxxxp_send_cmd(serial, "ISET1?");
+ break;
+ case KDXXXXP_VOLTAGE:
+ /* Read voltage from device. */
+ ret = korad_kdxxxxp_send_cmd(serial, "VOUT1?");
+ break;
+ case KDXXXXP_VOLTAGE_MAX:
+ /* Read set voltage from device. */
+ ret = korad_kdxxxxp_send_cmd(serial, "VSET1?");
+ break;
+ case KDXXXXP_STATUS:
+ case KDXXXXP_OUTPUT:
+ /* Read status from device. */
+ ret = korad_kdxxxxp_send_cmd(serial, "STATUS?");
+ break;
+ default:
+ sr_err("Don't know how to query %d.", devc->target);
+ return SR_ERR;
+ }
+
+ devc->req_sent_at = g_get_monotonic_time();
+ devc->reply_pending = TRUE;
+
+ return ret;
+}
+
+SR_PRIV int korad_kdxxxxp_get_all_values(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc)
+{
+ int ret;
+
+ for (devc->target = KDXXXXP_CURRENT;
+ devc->target <= KDXXXXP_STATUS; devc->target++) {
+ if ((ret = korad_kdxxxxp_query_value(serial, devc)) < 0)
+ return ret;
+ if ((ret = korad_kdxxxxp_get_reply(serial, devc)) < 0)
+ return ret;
+ }
+
+ return ret;
+}
+
+SR_PRIV int korad_kdxxxxp_get_reply(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc)
+{
+ double value;
+ int count, ret;
+ float *target;
+ char status_byte;
+
+ target = NULL;
+ count = 5;
+
+ switch (devc->target) {
+ case KDXXXXP_CURRENT:
+ /* Read current from device. */
+ target = &(devc->current);
+ break;
+ case KDXXXXP_CURRENT_MAX:
+ /* Read set current from device. */
+ target = &(devc->current_max);
+ break;
+ case KDXXXXP_VOLTAGE:
+ /* Read voltage from device. */
+ target = &(devc->voltage);
+ break;
+ case KDXXXXP_VOLTAGE_MAX:
+ /* Read set voltage from device. */
+ target = &(devc->voltage_max);
+ break;
+ case KDXXXXP_STATUS:
+ case KDXXXXP_OUTPUT:
+ /* Read status from device. */
+ count = 1;
+ break;
+ default:
+ sr_err("Don't know where to put repply %d.", devc->target);
+ }
+
+ if ((ret = korad_kdxxxxp_read_chars(serial, count, devc->reply)) < 0)
+ return ret;
+
+ devc->reply[count] = 0;
+
+ if (target) {
+ value = g_ascii_strtod(devc->reply, NULL);
+ *target = (float)value;
+ sr_dbg("value: %f",value);
+ } else {
+ /* We have status reply. */
+ status_byte = devc->reply[0];
+ /* Constant current */
+ devc->cc_mode[0] = !(status_byte & (1 << 0)); /* Channel one */
+ devc->cc_mode[1] = !(status_byte & (1 << 1)); /* Channel two */
+ /*
+ * Tracking
+ * status_byte & ((1 << 2) | (1 << 3))
+ * 00 independent 01 series 11 parallel
+ */
+ devc->beep_enabled = (1 << 4);
+ /* status_byte & (1 << 5) Unlocked */
+
+ devc->output_enabled = (status_byte & (1 << 6));
+ sr_dbg("Status: 0x%02x", status_byte);
+ sr_spew("Status: CH1: constant %s CH2: constant %s. Device is "
+ "%s and %s. Buttons are %s. Output is %s ",
+ (status_byte & (1 << 0)) ? "voltage" : "current",
+ (status_byte & (1 << 1)) ? "voltage" : "current",
+ (status_byte & (1 << 3)) ? "tracking" : "independent",
+ (status_byte & (1 << 4)) ? "beeping" : "silent",
+ (status_byte & (1 << 5)) ? "locked" : "unlocked",
+ (status_byte & (1 << 6)) ? "enabled" : "disabled");
+ }
+
+ devc->reply_pending = FALSE;
+
+ return ret;
+}
+
+static void next_measurement(struct dev_context *devc)
+{
+ switch (devc->target) {
+ case KDXXXXP_CURRENT:
+ devc->target = KDXXXXP_VOLTAGE;
+ break;
+ case KDXXXXP_CURRENT_MAX:
+ devc->target = KDXXXXP_CURRENT;
+ break;
+ case KDXXXXP_VOLTAGE:
+ devc->target = KDXXXXP_STATUS;
+ break;
+ case KDXXXXP_VOLTAGE_MAX:
+ devc->target = KDXXXXP_CURRENT;
+ break;
+ case KDXXXXP_OUTPUT:
+ devc->target = KDXXXXP_STATUS;
+ break;
+ case KDXXXXP_STATUS:
+ devc->target = KDXXXXP_CURRENT;
+ break;
+ default:
+ devc->target = KDXXXXP_CURRENT;
+ }
+}
+
SR_PRIV int korad_kdxxxxp_receive_data(int fd, int revents, void *cb_data)
{
- const struct sr_dev_inst *sdi;
+ struct sr_dev_inst *sdi;
struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_analog analog;
+ int64_t t, elapsed_us;
(void)fd;
if (!(devc = sdi->priv))
return TRUE;
+ serial = sdi->conn;
+
if (revents == G_IO_IN) {
- /* TODO */
+ /* Get the value. */
+ korad_kdxxxxp_get_reply(serial, devc);
+
+ /* Send the value forward. */
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ analog.channels = sdi->channels;
+ analog.num_samples = 1;
+ if (devc->target == KDXXXXP_CURRENT) {
+ analog.mq = SR_MQ_CURRENT;
+ analog.unit = SR_UNIT_AMPERE;
+ analog.mqflags = 0;
+ analog.data = &devc->current;
+ sr_session_send(sdi, &packet);
+ }
+ if (devc->target == KDXXXXP_VOLTAGE) {
+ analog.mq = SR_MQ_VOLTAGE;
+ analog.unit = SR_UNIT_VOLT;
+ analog.mqflags = SR_MQFLAG_DC;
+ analog.data = &devc->voltage;
+ sr_session_send(sdi, &packet);
+ devc->num_samples++;
+ }
+ next_measurement(devc);
+ } else {
+ /* Time out */
+ if (!devc->reply_pending) {
+ if (korad_kdxxxxp_query_value(serial, devc) < 0)
+ return TRUE;
+ devc->req_sent_at = g_get_monotonic_time();
+ devc->reply_pending = TRUE;
+ }
+ }
+
+ if (devc->limit_samples && (devc->num_samples >= devc->limit_samples)) {
+ sr_info("Requested number of samples reached.");
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ return TRUE;
+ }
+
+ if (devc->limit_msec) {
+ t = (g_get_monotonic_time() - devc->starttime) / 1000;
+ if (t > (int64_t)devc->limit_msec) {
+ sr_info("Requested time limit reached.");
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ return TRUE;
+ }
+ }
+
+ /* Request next packet, if required. */
+ if (sdi->status == SR_ST_ACTIVE) {
+ if (devc->reply_pending) {
+ elapsed_us = g_get_monotonic_time() - devc->req_sent_at;
+ if (elapsed_us > (REQ_TIMEOUT_MS * 1000))
+ devc->reply_pending = FALSE;
+ return TRUE;
+ }
+
}
return TRUE;
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/**
+ * @file
+ * Korad KDxxxxP power supply driver
+ * @internal
+ */
+
#ifndef LIBSIGROK_HARDWARE_KORAD_KDXXXXP_PROTOCOL_H
#define LIBSIGROK_HARDWARE_KORAD_KDXXXXP_PROTOCOL_H
#include <stdint.h>
+#include <string.h>
#include <glib.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#define LOG_PREFIX "korad-kdxxxxp"
+#define KDXXXXP_POLL_INTERVAL_MS 80
+
+enum {
+ VELLEMAN_LABPS_3005D,
+ /* Support for future devices with this protocol. */
+};
+
+/* Information on single model */
+struct korad_kdxxxxp_model {
+ int model_id; /**< Model info */
+ char *vendor; /**< Vendor name */
+ char *name; /**< Model name */
+ char *id; /**< Model ID, as delivered by interface */
+ int channels; /**< Number of channels */
+ double voltage[3]; /**< Min, max, step */
+ double current[3]; /**< Min, max, step */
+};
+
+/* Reply targets */
+enum {
+ KDXXXXP_CURRENT,
+ KDXXXXP_CURRENT_MAX,
+ KDXXXXP_VOLTAGE,
+ KDXXXXP_VOLTAGE_MAX,
+ KDXXXXP_STATUS,
+ KDXXXXP_OUTPUT,
+ KDXXXXP_BEEP,
+ KDXXXXP_SAVE,
+ KDXXXXP_RECALL,
+};
+
/** Private, per-device-instance driver context. */
struct dev_context {
/* Model-specific information */
+ const struct korad_kdxxxxp_model *model; /**< Model information. */
/* Acquisition settings */
+ uint64_t limit_samples;
+ uint64_t limit_msec;
+ uint64_t num_samples;
+ int64_t starttime;
+ int64_t req_sent_at;
+ gboolean reply_pending;
+
+ void *cb_data;
/* Operational state */
+ float current; /**< Last current value [A] read from device. */
+ float current_max; /**< Output current set. */
+ float voltage; /**< Last voltage value [V] read from device. */
+ float voltage_max; /**< Output voltage set. */
+ gboolean cc_mode[2]; /**< Device is in CC mode (otherwise CV). */
- /* Temporary state across callbacks */
+ gboolean output_enabled; /**< Is the output enabled? */
+ gboolean beep_enabled; /**< Enable beeper. */
+ /* Temporary state across callbacks */
+ int target; /**< What reply to expect */
+ int program; /**< Program to store or recall. */
+ char reply[6];
};
+SR_PRIV int korad_kdxxxxp_send_cmd(struct sr_serial_dev_inst *serial,
+ const char *cmd);
+SR_PRIV int korad_kdxxxxp_read_chars(struct sr_serial_dev_inst *serial,
+ int count, char *buf);
+SR_PRIV int korad_kdxxxxp_set_value(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc);
+SR_PRIV int korad_kdxxxxp_query_value(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc);
+SR_PRIV int korad_kdxxxxp_get_reply(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc);
+SR_PRIV int korad_kdxxxxp_get_all_values(struct sr_serial_dev_inst *serial,
+ struct dev_context *devc);
SR_PRIV int korad_kdxxxxp_receive_data(int fd, int revents, void *cb_data);
#endif
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