* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
#include <stdint.h>
#include <string.h>
#include <math.h>
#include <glib.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#define LOG_PREFIX "es51919"
{
struct dev_buffer *dbuf;
- if (!(dbuf = g_try_malloc(sizeof(struct dev_buffer) + size))) {
- sr_err("Dev buffer malloc failed (size=%zu).", size);
- return NULL;
- }
-
+ dbuf = g_malloc0(sizeof(struct dev_buffer) + size);
dbuf->size = size;
dbuf->len = 0;
dbuf->offset = 0;
return NULL;
}
-struct dev_sample_counter {
- /** The current number of already received samples. */
+struct dev_limit_counter {
+ /** The current number of received samples/frames/etc. */
uint64_t count;
- /** The current sampling limit (in number of samples). */
+ /** The limit (in number of samples/frames/etc.). */
uint64_t limit;
};
-static void dev_sample_counter_start(struct dev_sample_counter *cnt)
+static void dev_limit_counter_start(struct dev_limit_counter *cnt)
{
cnt->count = 0;
}
-static void dev_sample_counter_inc(struct dev_sample_counter *cnt)
+static void dev_limit_counter_inc(struct dev_limit_counter *cnt)
{
cnt->count++;
}
-static void dev_sample_limit_set(struct dev_sample_counter *cnt, uint64_t limit)
+static void dev_limit_counter_limit_set(struct dev_limit_counter *cnt,
+ uint64_t limit)
{
cnt->limit = limit;
}
-static gboolean dev_sample_limit_reached(struct dev_sample_counter *cnt)
+static gboolean dev_limit_counter_limit_reached(struct dev_limit_counter *cnt)
{
if (cnt->limit && cnt->count >= cnt->limit) {
- sr_info("Requested sample limit reached.");
+ sr_info("Requested counter limit reached.");
return TRUE;
}
return sr_session_send(sdi, &packet);
}
+static int send_config_update_key(struct sr_dev_inst *sdi, uint32_t key,
+ GVariant *var)
+{
+ struct sr_config *cfg;
+ int ret;
+
+ cfg = sr_config_new(key, var);
+ if (!cfg)
+ return SR_ERR;
+
+ ret = send_config_update(sdi, cfg);
+ sr_config_free(cfg);
+
+ return ret;
+}
+
/*
* Cyrustek ES51919 LCR chipset host protocol.
*
* 0 = normal (measurement shown)
* 1 = blank (nothing shown)
* 2 = lines ("----")
- * 3 = ouside limits ("OL")
+ * 3 = outside limits ("OL")
* 7 = pass ("PASS")
* 8 = fail ("FAIL")
* 9 = open ("OPEn")
#define PACKET_SIZE 17
-static const uint64_t frequencies[] = {
+static const double frequencies[] = {
100, 120, 1000, 10000, 100000, 0,
};
+enum { MODEL_NONE, MODEL_PAR, MODEL_SER, MODEL_AUTO, };
+
+static const char *const models[] = {
+ "NONE", "PARALLEL", "SERIES", "AUTO",
+};
+
/** Private, per-device-instance driver context. */
struct dev_context {
- /** Opaque pointer passed in by the frontend. */
- void *cb_data;
-
- /** The number of samples. */
- struct dev_sample_counter sample_count;
+ /** The number of frames. */
+ struct dev_limit_counter frame_count;
/** The time limit counter. */
struct dev_time_counter time_count;
/** The frequency of the test signal (index to frequencies[]). */
unsigned int freq;
+
+ /** Equivalent circuit model (index to models[]). */
+ unsigned int model;
};
-static int parse_mq(const uint8_t *buf, int is_secondary, int is_parallel)
+static const uint8_t *pkt_to_buf(const uint8_t *pkt, int is_secondary)
{
+ return is_secondary ? pkt + 10 : pkt + 5;
+}
+
+static int parse_mq(const uint8_t *pkt, int is_secondary, int is_parallel)
+{
+ const uint8_t *buf;
+
+ buf = pkt_to_buf(pkt, is_secondary);
+
switch (is_secondary << 8 | buf[0]) {
case 0x001:
- return is_parallel ?
+ return is_parallel ?
SR_MQ_PARALLEL_INDUCTANCE : SR_MQ_SERIES_INDUCTANCE;
case 0x002:
return is_parallel ?
}
static void parse_measurement(const uint8_t *pkt, float *floatval,
- struct sr_datafeed_analog *analog,
+ struct sr_datafeed_analog_old *analog,
int is_secondary)
{
static const struct {
const uint8_t *buf;
int state;
- buf = pkt + (is_secondary ? 10 : 5);
+ buf = pkt_to_buf(pkt, is_secondary);
analog->mq = -1;
analog->mqflags = 0;
analog->mqflags |= SR_MQFLAG_HOLD;
if (pkt[2] & 0x02)
analog->mqflags |= SR_MQFLAG_REFERENCE;
- if (pkt[2] & 0x20)
- analog->mqflags |= SR_MQFLAG_AUTOMQ;
- if (pkt[2] & 0x40)
- analog->mqflags |= SR_MQFLAG_AUTOMODEL;
} else {
if (pkt[2] & 0x04)
analog->mqflags |= SR_MQFLAG_RELATIVE;
}
- if ((analog->mq = parse_mq(buf, is_secondary, pkt[2] & 0x80)) < 0)
+ if ((analog->mq = parse_mq(pkt, is_secondary, pkt[2] & 0x80)) < 0)
return;
if ((buf[3] >> 3) >= ARRAY_SIZE(units)) {
*floatval *= (state == 0) ? units[buf[3] >> 3].mult : INFINITY;
}
-static unsigned int parse_frequency(const uint8_t *pkt)
+static unsigned int parse_freq(const uint8_t *pkt)
{
unsigned int freq;
return freq;
}
+static unsigned int parse_model(const uint8_t *pkt)
+{
+ if (pkt[2] & 0x40)
+ return MODEL_AUTO;
+ else if (parse_mq(pkt, 0, 0) == SR_MQ_RESISTANCE)
+ return MODEL_NONE;
+ else if (pkt[2] & 0x80)
+ return MODEL_PAR;
+ else
+ return MODEL_SER;
+}
+
static gboolean packet_valid(const uint8_t *pkt)
{
/*
return FALSE;
}
-static int send_frequency_update(struct sr_dev_inst *sdi, unsigned int freq)
+static int do_config_update(struct sr_dev_inst *sdi, uint32_t key,
+ GVariant *var)
{
- struct sr_config *cfg;
- struct dev_context *devc;
- int ret;
-
- devc = sdi->priv;
-
- cfg = sr_config_new(SR_CONF_OUTPUT_FREQUENCY,
- g_variant_new_uint64(frequencies[freq]));
-
- if (!cfg)
- return SR_ERR;
+ return send_config_update_key(sdi, key, var);
+}
- ret = send_config_update(devc->cb_data, cfg);
- sr_config_free(cfg);
+static int send_freq_update(struct sr_dev_inst *sdi, unsigned int freq)
+{
+ return do_config_update(sdi, SR_CONF_OUTPUT_FREQUENCY,
+ g_variant_new_double(frequencies[freq]));
+}
- return ret;
+static int send_model_update(struct sr_dev_inst *sdi, unsigned int model)
+{
+ return do_config_update(sdi, SR_CONF_EQUIV_CIRCUIT_MODEL,
+ g_variant_new_string(models[model]));
}
static void handle_packet(struct sr_dev_inst *sdi, const uint8_t *pkt)
{
struct sr_datafeed_packet packet;
- struct sr_datafeed_analog analog;
+ struct sr_datafeed_analog_old analog;
struct dev_context *devc;
- unsigned int freq;
+ unsigned int val;
float floatval;
- int count;
+ gboolean frame;
devc = sdi->priv;
- freq = parse_frequency(pkt);
- if (freq != devc->freq) {
- if (send_frequency_update(sdi, freq) == SR_OK)
- devc->freq = freq;
+ val = parse_freq(pkt);
+ if (val != devc->freq) {
+ if (send_freq_update(sdi, val) == SR_OK)
+ devc->freq = val;
else
return;
}
- count = 0;
+ val = parse_model(pkt);
+ if (val != devc->model) {
+ if (send_model_update(sdi, val) == SR_OK)
+ devc->model = val;
+ else
+ return;
+ }
+
+ frame = FALSE;
memset(&analog, 0, sizeof(analog));
analog.num_samples = 1;
analog.data = &floatval;
- packet.type = SR_DF_ANALOG;
- packet.payload = &analog;
-
analog.channels = g_slist_append(NULL, sdi->channels->data);
parse_measurement(pkt, &floatval, &analog, 0);
if (analog.mq >= 0) {
- if (sr_session_send(devc->cb_data, &packet) == SR_OK)
- count++;
+ if (!frame) {
+ packet.type = SR_DF_FRAME_BEGIN;
+ sr_session_send(sdi, &packet);
+ frame = TRUE;
+ }
+
+ packet.type = SR_DF_ANALOG_OLD;
+ packet.payload = &analog;
+
+ sr_session_send(sdi, &packet);
}
+ g_slist_free(analog.channels);
analog.channels = g_slist_append(NULL, sdi->channels->next->data);
parse_measurement(pkt, &floatval, &analog, 1);
if (analog.mq >= 0) {
- if (sr_session_send(devc->cb_data, &packet) == SR_OK)
- count++;
+ if (!frame) {
+ packet.type = SR_DF_FRAME_BEGIN;
+ sr_session_send(sdi, &packet);
+ frame = TRUE;
+ }
+
+ packet.type = SR_DF_ANALOG_OLD;
+ packet.payload = &analog;
+
+ sr_session_send(sdi, &packet);
}
- if (count > 0)
- dev_sample_counter_inc(&devc->sample_count);
+ g_slist_free(analog.channels);
+
+ if (frame) {
+ packet.type = SR_DF_FRAME_END;
+ sr_session_send(sdi, &packet);
+ dev_limit_counter_inc(&devc->frame_count);
+ }
}
static int handle_new_data(struct sr_dev_inst *sdi)
handle_new_data(sdi);
}
- if (dev_sample_limit_reached(&devc->sample_count) ||
+ if (dev_limit_counter_limit_reached(&devc->frame_count) ||
dev_time_limit_reached(&devc->time_count))
- sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ sdi->driver->dev_acquisition_stop(sdi);
return TRUE;
}
-static int add_channel(struct sr_dev_inst *sdi, const char *name)
-{
- struct sr_channel *ch;
-
- if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, name)))
- return SR_ERR;
-
- sdi->channels = g_slist_append(sdi->channels, ch);
-
- return SR_OK;
-}
-
static const char *const channel_names[] = { "P1", "P2" };
static int setup_channels(struct sr_dev_inst *sdi)
ret = SR_ERR_BUG;
- for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
- ret = add_channel(sdi, channel_names[i]);
- if (ret != SR_OK)
- break;
- }
+ for (i = 0; i < ARRAY_SIZE(channel_names); i++)
+ sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]);
return ret;
}
sr_info("Found device on port %s.", serial->port);
- if (!(sdi = sr_dev_inst_new(SR_ST_INACTIVE, vendor, model, NULL)))
- goto scan_cleanup;
-
- if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- goto scan_cleanup;
- }
-
- if (!(devc->buf = dev_buffer_new(PACKET_SIZE * 8)))
- goto scan_cleanup;
-
- devc->freq = -1;
-
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->vendor = g_strdup(vendor);
+ sdi->model = g_strdup(model);
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->buf = dev_buffer_new(PACKET_SIZE * 8);
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
-
sdi->priv = devc;
if (setup_channels(sdi) != SR_OK)
switch (key) {
case SR_CONF_OUTPUT_FREQUENCY:
- *data = g_variant_new_uint64(frequencies[devc->freq]);
+ *data = g_variant_new_double(frequencies[devc->freq]);
+ break;
+ case SR_CONF_EQUIV_CIRCUIT_MODEL:
+ *data = g_variant_new_string(models[devc->model]);
break;
default:
sr_spew("%s: Unsupported key %u", __func__, key);
dev_time_limit_set(&devc->time_count, val);
sr_dbg("Setting time limit to %" PRIu64 ".", val);
break;
- case SR_CONF_LIMIT_SAMPLES:
+ case SR_CONF_LIMIT_FRAMES:
val = g_variant_get_uint64(data);
- dev_sample_limit_set(&devc->sample_count, val);
- sr_dbg("Setting sample limit to %" PRIu64 ".", val);
+ dev_limit_counter_limit_set(&devc->frame_count, val);
+ sr_dbg("Setting frame limit to %" PRIu64 ".", val);
break;
default:
sr_spew("%s: Unsupported key %u", __func__, key);
static const uint32_t devopts[] = {
SR_CONF_LCRMETER,
SR_CONF_CONTINUOUS,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
+ SR_CONF_LIMIT_FRAMES | SR_CONF_SET,
SR_CONF_LIMIT_MSEC | SR_CONF_SET,
SR_CONF_OUTPUT_FREQUENCY | SR_CONF_GET | SR_CONF_LIST,
+ SR_CONF_EQUIV_CIRCUIT_MODEL | SR_CONF_GET | SR_CONF_LIST,
};
static const struct std_opt_desc opts = {
switch (key) {
case SR_CONF_OUTPUT_FREQUENCY:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64,
- frequencies, ARRAY_SIZE(frequencies), sizeof(uint64_t));
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_DOUBLE,
+ frequencies, ARRAY_SIZE(frequencies), sizeof(double));
+ break;
+ case SR_CONF_EQUIV_CIRCUIT_MODEL:
+ *data = g_variant_new_strv(models, ARRAY_SIZE(models));
break;
default:
sr_spew("%s: Unsupported key %u", __func__, key);
return SR_OK;
}
-SR_PRIV int es51919_serial_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
+SR_PRIV int es51919_serial_acquisition_start(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
if (!(devc = sdi->priv))
return SR_ERR_BUG;
- devc->cb_data = cb_data;
-
- dev_sample_counter_start(&devc->sample_count);
+ dev_limit_counter_start(&devc->frame_count);
dev_time_counter_start(&devc->time_count);
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
+ std_session_send_df_header(sdi, LOG_PREFIX);
/* Poll every 50ms, or whenever some data comes in. */
serial = sdi->conn;
return SR_OK;
}
-SR_PRIV int es51919_serial_acquisition_stop(struct sr_dev_inst *sdi,
- void *cb_data)
+SR_PRIV int es51919_serial_acquisition_stop(struct sr_dev_inst *sdi)
{
- return std_serial_dev_acquisition_stop(sdi, cb_data,
+ return std_serial_dev_acquisition_stop(sdi,
std_serial_dev_close, sdi->conn, LOG_PREFIX);
}
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