* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <string.h>
+
#include "protocol.h"
+/* Serial communication parameters for Metrahit 1x/2x with 'RS232' adaptor */
+#define SERIALCOMM_1X_RS232 "8228/6n1/dtr=1/rts=1/flow=0" /* =8192, closer with divider */
+#define SERIALCOMM_2X_RS232 "9600/6n1/dtr=1/rts=1/flow=0"
+#define VENDOR_GMC "Gossen Metrawatt"
+
SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info;
-static struct sr_dev_driver *di = &gmc_mh_1x_2x_rs232_driver_info;
-static int init(struct sr_context *sr_ctx)
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+static const int32_t hwcaps[] = {
+ SR_CONF_MULTIMETER,
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_LIMIT_MSEC,
+ SR_CONF_CONTINUOUS,
+};
+
+/** Driver init function */
+static int init_1x_2x_rs232(struct sr_context *sr_ctx)
{
- return std_init(sr_ctx, di, LOG_PREFIX);
+ return std_init(sr_ctx, &gmc_mh_1x_2x_rs232_driver_info, LOG_PREFIX);
}
-static GSList *scan(GSList *options)
+
+/** Read single byte from serial port.
+ * \retval -1 Timeout or error.
+ * \retval other Byte.
+ */
+static int read_byte(struct sr_serial_dev_inst *serial, gint64 timeout)
{
- struct drv_context *drvc;
- GSList *devices;
+ guint8 result = 0;
+ int rc = 0;
+
+ for (;;) {
+ rc = serial_read(serial, &result, 1);
+ if (rc == 1) {
+ sr_spew("read: 0x%02x/%d", result, result);
+ return result;
+ }
+ if (g_get_monotonic_time() > timeout)
+ return -1;
+ g_usleep(2000);
+ }
+}
+
+/** Try to detect GMC 1x/2x multimeter model in send mode for max. 1 second.
+ * \param serial Configured, open serial port.
+ *
+ * \retval NULL Detection failed.
+ * \retval other Model code.
+ */
+static enum model scan_model_sm(struct sr_serial_dev_inst *serial)
+{
+ int byte, bytecnt, cnt;
+ enum model model;
+ gint64 timeout_us;
+
+ model = SR_METRAHIT_NONE;
+ timeout_us = g_get_monotonic_time() + 1*1000*1000;
+
+ /* Try to find message consisting of device code and several
+ * (at least 4) data bytes. */
+ for (bytecnt = 0; bytecnt < 100; bytecnt++) {
+ byte = read_byte(serial, timeout_us);
+ if ((byte == -1) || (timeout_us < g_get_monotonic_time()))
+ break;
+ if ((byte & MSGID_MASK) == MSGID_INF) {
+ if (!(model = sr_gmc_decode_model_sm(byte & MSGC_MASK)))
+ break;
+ /* Now expect (at least) 4 data bytes */
+ for (cnt = 0; cnt < 4; cnt++) {
+ byte = read_byte(serial, timeout_us);
+ if ((byte == -1) ||
+ ((byte & MSGID_MASK) != MSGID_DATA))
+ {
+ model = SR_METRAHIT_NONE;
+ bytecnt = 100;
+ break;
+ }
+ }
+ break;
+ }
+ }
- (void)options;
+ return model;
+}
+
+/** Scan for Metrahit 1x and Metrahit 2x in send mode using Gossen Metrawatt
+ * 'RS232' interface. The older 1x models use 8192 and the newer 2x 9600 baud.
+ * The DMM usually sends up to about 20 messages per second. However, depending
+ * on configuration and measurement mode the intervals can be much larger and
+ * then the detection might not work.
+ */
+static GSList *scan_1x_2x_rs232(GSList *options)
+{
+ struct sr_dev_inst *sdi;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_config *src;
+ struct sr_probe *probe;
+ struct sr_serial_dev_inst *serial;
+ GSList *l, *devices;
+ const char *conn, *serialcomm;
+ enum model model;
+ gboolean serialcomm_given;
+ int cnt;
devices = NULL;
- drvc = di->priv;
+ drvc = (&gmc_mh_1x_2x_rs232_driver_info)->priv;
drvc->instances = NULL;
+ conn = serialcomm = NULL;
+ model = SR_METRAHIT_NONE;
+ serialcomm_given = FALSE;
+
+ sr_spew("scan_1x_2x_rs232() called!");
+
+ 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);
+ serialcomm_given = TRUE;
+ break;
+ }
+ }
+ if (!conn)
+ return NULL;
+ if (!serialcomm)
+ serialcomm = SERIALCOMM_2X_RS232;
+
+ if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
+ return NULL;
+
+ if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) {
+ sr_serial_dev_inst_free(serial);
+ return NULL;
+ }
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ serial_flush(serial);
+
+ model = scan_model_sm(serial);
+
+ /* If detection failed and no user-supplied parameters,
+ * try second baud rate. */
+ if ((model == SR_METRAHIT_NONE) && !serialcomm_given) {
+ serialcomm = SERIALCOMM_1X_RS232;
+ g_free(serial->serialcomm);
+ serial->serialcomm = g_strdup(serialcomm);
+ if (serial_set_paramstr(serial, serialcomm) == SR_OK) {
+ serial_flush(serial);
+ model = scan_model_sm(serial);
+ }
+ }
+
+ if (model != SR_METRAHIT_NONE) {
+ sr_spew("%s %s detected!", VENDOR_GMC, sr_gmc_model_str(model));
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR_GMC,
+ sr_gmc_model_str(model), "")))
+ return NULL;
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
+ sr_err("Device context malloc failed.");
+ return NULL;
+ }
+ devc->model = model;
+ devc->limit_samples = 0;
+ devc->limit_msec = 0;
+ devc->num_samples = 0;
+ devc->elapsed_msec = g_timer_new();
+ devc->settings_ok = FALSE;
+
+ sdi->conn = serial;
+ sdi->priv = devc;
+ sdi->driver = &gmc_mh_1x_2x_rs232_driver_info;
+ if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
+ return NULL;
+ sdi->probes = g_slist_append(sdi->probes, probe);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+ }
return devices;
}
-static GSList *dev_list(void)
+/** Driver device list function */
+static GSList *dev_list_1x_2x_rs232(void)
{
- return ((struct drv_context *)(di->priv))->instances;
+ return ((struct drv_context *)(gmc_mh_1x_2x_rs232_driver_info.priv))
+ ->instances;
}
-static int dev_clear(void)
+static int dev_clear_1x_2x_rs232(void)
{
- return std_dev_clear(di, NULL);
+ return std_dev_clear(&gmc_mh_1x_2x_rs232_driver_info, NULL);
}
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
-
- /* TODO: get handle from sdi->conn and open it. */
+ struct sr_serial_dev_inst *serial = sdi->conn;
+ if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
+ return SR_ERR;
sdi->status = SR_ST_ACTIVE;
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_serial_dev_inst *serial;
+ struct dev_context *devc;
- /* TODO: get handle from sdi->conn and close it. */
+ serial = sdi->conn;
+ if (serial && serial->fd != -1) {
+ serial_close(serial);
+ sdi->status = SR_ST_INACTIVE;
+ }
sdi->status = SR_ST_INACTIVE;
+ /* Free dynamically allocated resources. */
+ if ((devc = sdi->priv) && devc->elapsed_msec) {
+ g_timer_destroy(devc->elapsed_msec);
+ devc->elapsed_msec = NULL;
+ devc->model = SR_METRAHIT_NONE;
+ }
+
return SR_OK;
}
-static int cleanup(void)
+static int cleanup_sm_rs232(void)
{
- dev_clear();
-
- /* TODO: free other driver resources, if any. */
-
- return SR_OK;
+ return dev_clear_1x_2x_rs232();
}
+/** TODO */
static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
- int ret;
+ struct dev_context *devc;
- (void)data;
(void)probe_group;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- ret = SR_OK;
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_MSEC:
+ if (g_variant_get_uint64(data) == 0) {
+ sr_err("LIMIT_MSEC can't be 0.");
+ return SR_ERR;
+ }
+ devc->limit_msec = g_variant_get_uint64(data);
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
- int ret;
-
(void)sdi;
- (void)data;
- (void)probe_group;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
+static int dev_acq_start_1x_2x_rs232(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 || !cb_data || !(devc = sdi->priv))
+ return SR_ERR_BUG;
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->cb_data = cb_data;
+ devc->settings_ok = FALSE;
+ devc->buflen = 0;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Start timer, if required. */
+ if (devc->limit_msec)
+ g_timer_start(devc->elapsed_msec);
+
+ /* Poll every 40ms, or whenever some data comes in. */
+ serial = sdi->conn;
+ sr_source_add(serial->fd, G_IO_IN, 40, gmc_mh_1x_2x_receive_data,
+ (void *)sdi);
return SR_OK;
}
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acq_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- (void)cb_data;
+ struct dev_context *devc;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ /* Stop timer, if required. */
+ if (sdi && (devc = sdi->priv) && devc->limit_msec)
+ g_timer_stop(devc->elapsed_msec);
- /* TODO: stop acquisition. */
-
- return SR_OK;
+ return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
+ sdi->conn, LOG_PREFIX);
}
SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info = {
.longname =
"Gossen Metrawatt Metrahit 1x/2x DMMs, 'RS232' Interface",
.api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
+ .init = init_1x_2x_rs232,
+ .cleanup = cleanup_sm_rs232,
+ .scan = scan_1x_2x_rs232,
+ .dev_list = dev_list_1x_2x_rs232,
+ .dev_clear = dev_clear_1x_2x_rs232,
.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,
+ .dev_acquisition_start = dev_acq_start_1x_2x_rs232,
+ .dev_acquisition_stop = dev_acq_stop,
.priv = NULL,
};
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <math.h>
+#include <string.h>
+
#include "protocol.h"
+/** Set or clear flags in devc->mqflags. */
+static void setmqf(struct dev_context *devc, uint64_t flags, gboolean set)
+{
+ if (set)
+ devc->mqflags |= flags;
+ else
+ devc->mqflags &= ~flags;
+}
+
+/** Decode current type and measured value, Metrahit 12-16.
+ */
+static void decode_ctmv_16(guchar ctmv, struct dev_context *devc)
+{
+ devc->mq = 0;
+ devc->unit = 0;
+ devc->mqflags = 0;
+
+ switch (ctmv) {
+ case 0x00: /* 0000 - */
+ break;
+ case 0x01: /* 0001 mV DC */
+ devc->scale1000 = -1; /* Fall through */
+ case 0x02: /* 0010 V DC */
+ case 0x03: /* 0011 V AC+DC */
+ case 0x04: /* 0100 V AC */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ if (ctmv <= 0x03)
+ devc->mqflags |= SR_MQFLAG_DC;
+ if (ctmv >= 0x03) {
+ devc->mqflags |= SR_MQFLAG_AC;
+ if (devc->model >= SR_METRAHIT_16S)
+ devc->mqflags |= SR_MQFLAG_RMS;
+ }
+ break;
+ case 0x05: /* 0101 Hz (15S/16S only) */
+ case 0x06: /* 0110 kHz (15S/16S only) */
+ devc->mq = SR_MQ_FREQUENCY;
+ devc->unit = SR_UNIT_HERTZ;
+ if (ctmv == 0x06)
+ devc->scale1000 = 1;
+ break;
+ case 0x07: /* 0111 % (15S/16S only) */
+ devc->mq = SR_MQ_DUTY_CYCLE;
+ devc->unit = SR_UNIT_PERCENTAGE;
+ break;
+ case 0x08: /* 1000 Diode */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ devc->mqflags |= SR_MQFLAG_DIODE;
+ break;
+ case 0x09: /* 1001 Ohm, °C */
+ case 0x0a: /* 1010 kOhm */
+ case 0x0b: /* 1011 MOhm */
+ devc->mq = SR_MQ_RESISTANCE; /* Changed to temp. later if req.*/
+ devc->unit = SR_UNIT_OHM;
+ devc->scale1000 = ctmv - 0x09;
+ break;
+ case 0x0c: /* 1100 nF (15S/16S only) */
+ case 0x0d: /* 1101 µF (15S/16S only) */
+ devc->mq = SR_MQ_CAPACITANCE;
+ devc->unit = SR_UNIT_FARAD;
+ if (ctmv == 0x0c)
+ devc->scale1000 = -3;
+ else
+ devc->scale1000 = -2;
+ break;
+ case 0x0e: /* mA, µA */
+ devc->scale1000 = -1; /* Fall through. */
+ case 0x0f: /* A */
+ devc->mq = SR_MQ_CURRENT;
+ devc->unit = SR_UNIT_AMPERE;
+ if (devc->model == SR_METRAHIT_16S)
+ devc->mqflags |= SR_MQFLAG_RMS;
+ /* 16I A only with clamp, RMS questionable. */
+ break;
+ }
+}
+
+/** Decode range/sign/acdc byte special chars (Metrahit 12-16).
+ * \param[in] spc Special characters 1 and 2 (s1 | (s2<<4)).
+ */
+static void decode_rs_16(guchar rs, struct dev_context *devc)
+{
+ sr_spew("decode_rs_16(%d) scale = %f", rs, devc->scale);
+
+ if (rs & 0x08) /* Sign */
+ devc->scale *= -1.0;
+
+ if (devc->mq == SR_MQ_CURRENT) {
+ if (rs & 0x04) /* Current is AC */
+ devc->mqflags |= SR_MQFLAG_AC;
+ else
+ devc->mqflags |= SR_MQFLAG_DC;
+ }
+
+ switch (rs & 0x03) {
+ case 0:
+ if (devc->mq == SR_MQ_VOLTAGE) /* V */
+ devc->scale *= 0.1;
+ else if (devc->mq == SR_MQ_CURRENT) /* 000.0 µA */
+ devc->scale *= 0.0000001; /* Untested! */
+ else if (devc->mq == SR_MQ_RESISTANCE) {
+ if (devc->buflen >= 10) {
+ /* °C with 10 byte msg type, otherwise GOhm. */
+ devc->mq = SR_MQ_TEMPERATURE;
+ devc->unit = SR_UNIT_CELSIUS;
+ devc->scale *= 0.01;
+ }
+ else if ((devc->scale1000 == 2)) {
+ /* 16I Iso 500/1000V 3 GOhm */
+ devc->scale *= 0.1;
+ }
+ }
+ break;
+ case 1:
+ devc->scale *= 0.0001;
+ break;
+ case 2:
+ devc->scale *= 0.001;
+ break;
+ case 3:
+ devc->scale *= 0.01;
+ break;
+ }
+}
+
+/** Decode special chars, Metrahit 12-16.
+ * \param[in] spc Special characters 1 and 2 (s1 | (s2<<4)).
+ */
+static void decode_spc_16(guchar spc, struct dev_context *devc)
+{
+ /* xxxx1xxx ON */
+ /* TODO: What does that mean? Power on? The 16I sets this. */
+ /* xxxxx1xx BEEP */
+ /* xxxxxx1x Low battery */
+ /* xxxxxxx1 FUSE */
+ /* 1xxxxxxx MIN */
+ setmqf(devc, SR_MQFLAG_MIN, spc & 0x80);
+
+ /* x1xxxxxx MAN */
+ setmqf(devc, SR_MQFLAG_AUTORANGE, !(spc & 0x40));
+
+ /* xx1xxxxx DATA */
+ setmqf(devc, SR_MQFLAG_HOLD, spc & 0x20);
+
+ /* xxx1xxxx MAX */
+ setmqf(devc, SR_MQFLAG_MAX, spc & 0x10);
+}
+
+/** Decode current type and measured value, Metrahit 18.
+ */
+static void decode_ctmv_18(guchar ctmv, struct dev_context *devc)
+{
+ devc->mq = 0;
+ devc->unit = 0;
+ devc->mqflags = 0;
+
+ switch (ctmv) {
+ case 0x00: /* 0000 - */
+ break;
+ case 0x01: /* 0001 V AC */
+ case 0x02: /* 0010 V AC+DC */
+ case 0x03: /* 0011 V DC */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ if (ctmv <= 0x02)
+ devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_RMS);
+ if (ctmv >= 0x02)
+ devc->mqflags |= SR_MQFLAG_DC;
+ break;
+ case 0x04: /* 0100 Ohm/Ohm with buzzer */
+ devc->mq = SR_MQ_RESISTANCE;
+ devc->unit = SR_UNIT_OHM;
+ break;
+ case 0x05: /* 0101 Diode/Diode with buzzer*/
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ devc->mqflags |= SR_MQFLAG_DIODE;
+ break;
+ case 0x06: /* 0110 °C */
+ devc->mq = SR_MQ_TEMPERATURE;
+ devc->unit = SR_UNIT_CELSIUS;
+ break;
+ case 0x07: /* 0111 F */
+ devc->mq = SR_MQ_CAPACITANCE;
+ devc->unit = SR_UNIT_FARAD;
+ break;
+ case 0x08: /* 1000 mA DC */
+ case 0x09: /* 1001 A DC */
+ case 0x0a: /* 1010 mA AC+DC */
+ case 0x0b: /* 1011 A AC+DC */
+ devc->mq = SR_MQ_CURRENT;
+ devc->unit = SR_UNIT_AMPERE;
+ devc->mqflags |= SR_MQFLAG_DC;
+ if (ctmv >= 0x0a)
+ devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_RMS);
+ if ((ctmv == 0x08) || (ctmv == 0x0a))
+ devc->scale1000 = -1;
+ break;
+ case 0x0c: /* 1100 Hz */
+ devc->mq = SR_MQ_FREQUENCY;
+ devc->unit = SR_UNIT_HERTZ;
+ break;
+ case 0x0d: /* 1101 dB */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_DECIBEL_VOLT;
+ devc->mqflags |= SR_MQFLAG_AC; /* dB available for AC only */
+ break;
+ case 0x0e: /* 1110 Events AC, Events AC+DC. Actually delivers just
+ * current voltage via IR, nothing more. */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ devc->mqflags |= SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS;
+ break;
+ case 0x0f: /* 1111 Clock */
+ devc->mq = SR_MQ_TIME;
+ devc->unit = SR_UNIT_SECOND;
+ devc->mqflags |= SR_MQFLAG_DURATION;
+ break;
+ }
+}
+
+/** Decode range/sign/acdc byte special chars, Metrahit 18.
+ * \param[in] rs Rance/sign byte
+ */
+static void decode_rs_18(guchar rs, struct dev_context *devc)
+{
+ int range;
+
+ /* Sign */
+ if (((devc->scale > 0) && (rs & 0x08)) ||
+ ((devc->scale < 0) && !(rs & 0x08)))
+ devc->scale *= -1.0;
+
+ /* Range */
+ range = rs & 0x07;
+ switch (devc->mq) {
+ case SR_MQ_VOLTAGE:
+ if (devc->unit == SR_UNIT_DECIBEL_VOLT) {
+ devc->scale *= pow(10.0, -2);
+ /* When entering relative mode, the device switches
+ * from 10 byte to 6 byte msg format. Unfortunately
+ * it switches back to 10 byte when the second value
+ * is measured, so that's not sufficient to
+ * identify relative mode.
+ */
+ }
+ else if (devc->vmains_29S)
+ devc->scale *= pow(10.0, range - 2);
+ else
+ devc->scale *= pow(10.0, range - 5);
+ break;
+ case SR_MQ_CURRENT:
+ if (devc->scale1000 == -1)
+ devc->scale *= pow(10.0, range - 5);
+ else
+ devc->scale *= pow(10.0, range - 4);
+ break;
+ case SR_MQ_RESISTANCE:
+ devc->scale *= pow(10.0, range - 2);
+ break;
+ case SR_MQ_FREQUENCY:
+ devc->scale *= pow(10.0, range - 3);
+ break;
+ case SR_MQ_TEMPERATURE:
+ devc->scale *= pow(10.0, range - 2);
+ break;
+ case SR_MQ_CAPACITANCE:
+ devc->scale *= pow(10.0, range - 14);
+ break;
+ /* TODO: 29S Mains measurements. */
+ }
+}
+
+/** Decode special chars, Metrahit 18.
+ * \param[in] spc Special characters 1 and 2 (s1 | (s2<<4)).
+ */
+static void decode_spc_18(guchar spc, struct dev_context *devc)
+{
+ /* xxxx1xxx ZERO */
+ /* xxxxx1xx BEEP */
+ /* xxxxxx1x Low battery */
+ /* xxxxxxx1 Fuse */
+
+ if (devc->mq == SR_MQ_TIME) {
+ /* xxx1xxxx Clock running: 1; stop: 0 */
+ sr_spew("Clock running: %d", spc >> 4);
+ }
+ else {
+ /* 1xxxxxxx MAN */
+ setmqf(devc, SR_MQFLAG_AUTORANGE, !(spc & 0x80));
+
+ /* x1xxxxxx MIN */
+ setmqf(devc, SR_MQFLAG_MIN, spc & 0x40);
+
+ /* xx1xxxxx MAX */
+ setmqf(devc, SR_MQFLAG_MAX, spc & 0x20);
+
+ /* xxx1xxxx DATA */
+ setmqf(devc, SR_MQFLAG_HOLD, spc & 0x10);
+ }
+}
+
+/** Decode current type and measured value, Metrahit 2x.
+ * \param[in] ctmv Current type and measured value (v1 | (v2<<4)).
+ */
+static void decode_ctmv_2x(guchar ctmv, struct dev_context *devc)
+{
+ if ((ctmv > 0x1c) || (!devc)) {
+ sr_err("decode_ct_mv_2x(%d): invalid param(s)!", ctmv);
+ return;
+ }
+
+ devc->mq = 0;
+ devc->unit = 0;
+ devc->mqflags = 0;
+
+ switch (ctmv) {
+ /* 00000 unused */
+ case 0x01: /* 00001 V DC */
+ case 0x02: /* 00010 V AC+DC */
+ case 0x03: /* 00011 V AC */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ if (ctmv <= 0x02)
+ devc->mqflags |= SR_MQFLAG_DC;
+ if (ctmv >= 0x02) {
+ devc->mqflags |= SR_MQFLAG_AC;
+ if (devc->model >= SR_METRAHIT_24S)
+ devc->model |= SR_MQFLAG_RMS;
+ }
+ break;
+ case 0x04: /* 00100 mA DC */
+ case 0x05: /* 00101 mA AC+DC */
+ devc->scale1000 = -1;
+ case 0x06: /* 00110 A DC */
+ case 0x07: /* 00111 A AC+DC */
+ devc->mq = SR_MQ_CURRENT;
+ devc->unit = SR_UNIT_AMPERE;
+ devc->mqflags |= SR_MQFLAG_DC;
+ if ((ctmv == 0x05) || (ctmv == 0x07)) {
+ devc->mqflags |= SR_MQFLAG_AC;
+ if (devc->model >= SR_METRAHIT_24S)
+ devc->mqflags |= SR_MQFLAG_RMS;
+ }
+ break;
+ case 0x08: /* 01000 Ohm */
+ devc->mq = SR_MQ_RESISTANCE;
+ devc->unit = SR_UNIT_OHM;
+ break;
+ case 0x09: /* 01001 F */
+ devc->mq = SR_MQ_CAPACITANCE;
+ devc->unit = SR_UNIT_FARAD;
+ devc->scale *= 0.1;
+ break;
+ case 0x0a: /* 01010 dB */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_DECIBEL_VOLT;
+ devc->mqflags |= SR_MQFLAG_AC;
+ break;
+ case 0x0b: /* 01011 Hz U ACDC */
+ case 0x0c: /* 01100 Hz U AC */
+ devc->mq = SR_MQ_FREQUENCY;
+ devc->unit = SR_UNIT_HERTZ;
+ devc->mqflags |= SR_MQFLAG_AC;
+ if (ctmv <= 0x0b)
+ devc->mqflags |= SR_MQFLAG_DC;
+ break;
+ case 0x0d: /* 01101 W on power, mA range (29S only) */
+ case 0x0e: /* 01110 W on power, A range (29S only) */
+ /* TODO: Differences between Send Mode and bidir protocol here */
+ devc->mq = SR_MQ_POWER;
+ devc->unit = SR_UNIT_WATT;
+ break;
+ case 0x0f: /* 01111 Diode */
+ case 0x10: /* 10000 Diode with buzzer (actually cont. with voltage) */
+ devc->unit = SR_UNIT_VOLT;
+ if (ctmv == 0x0f) {
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->mqflags |= SR_MQFLAG_DIODE;
+ devc->scale *= 0.1;
+ }
+ else {
+ devc->mq = SR_MQ_CONTINUITY;
+ devc->scale *= 0.00001;
+ }
+ devc->unit = SR_UNIT_VOLT;
+ break;
+ case 0x11: /* 10001 Ohm with buzzer */
+ devc->mq = SR_MQ_CONTINUITY;
+ devc->unit = SR_UNIT_OHM;
+ devc->scale1000 = -1;
+ break;
+ case 0x12: /* 10010 Temperature */
+ devc->mq = SR_MQ_TEMPERATURE;
+ devc->unit = SR_UNIT_CELSIUS;
+ /* This can be Fahrenheit. That is detected by range=4 later. */
+ break;
+ /* 0x13 10011, 0x14 10100 unsed */
+ case 0x15: /* 10101 Press (29S only) */
+ /* TODO: What does that mean? Possibly phase shift?
+ Then we need a unit/flag for it. */
+ devc->mq = SR_MQ_GAIN;
+ devc->unit = SR_UNIT_PERCENTAGE;
+ break;
+ case 0x16: /* 10110 Pulse W (29S only) */
+ /* TODO: Own unit and flag for this! */
+ devc->mq = SR_MQ_POWER;
+ devc->unit = SR_UNIT_WATT;
+ break;
+ case 0x17: /* 10111 TRMS V on mains (29S only) */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_VOLT;
+ devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_RMS);
+ devc->vmains_29S = TRUE;
+ break;
+ case 0x18: /* 11000 Counter (zero crossings of a signal) */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_UNITLESS;
+ break;
+ case 0x19: /* 11001 Events U ACDC */
+ case 0x1a: /* 11010 Events U AC */
+ /* TODO: No unit or flags for this yet! */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_UNITLESS;
+ devc->mqflags |= SR_MQFLAG_AC;
+ if (ctmv <= 0x19)
+ devc->mqflags |= SR_MQFLAG_DC;
+ break;
+ case 0x1b: /* 11011 pulse on mains (29S only) */
+ /* TODO: No unit or flags for this yet! */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_UNITLESS;
+ devc->mqflags |= SR_MQFLAG_AC;
+ break;
+ case 0x1c: /* 11100 dropout on mains (29S only) */
+ /* TODO: No unit or flags for this yet! */
+ devc->mq = SR_MQ_VOLTAGE;
+ devc->unit = SR_UNIT_UNITLESS;
+ devc->mqflags |= SR_MQFLAG_AC;
+ break;
+ default:
+ sr_err("decode_ctmv_2x(%d, ...): Unknown ctmv!");
+ }
+}
+
+/** Decode range/sign/acdc byte special chars, Metrahit 2x.
+ * \param[in] rs Rance/sign byte
+ */
+static void decode_rs_2x(guchar rs, struct dev_context *devc)
+{
+ int range;
+
+ /* Sign */
+ if (((devc->scale > 0) && (rs & 0x08)) ||
+ ((devc->scale < 0) && !(rs & 0x08)))
+ devc->scale *= -1.0;
+
+ /* Range */
+ range = rs & 0x07;
+ switch (devc->mq) {
+ case SR_MQ_VOLTAGE:
+ if (devc->unit == SR_UNIT_DECIBEL_VOLT) {
+ devc->scale *= pow(10.0, -3);
+ }
+ else if (devc->vmains_29S)
+ devc->scale *= pow(10.0, range - 2);
+ else if(devc->mqflags & SR_MQFLAG_AC)
+ devc->scale *= pow(10.0, range - 6);
+ else /* "Undocumented feature": Between AC and DC
+ scaling differs by 1. */
+ devc->scale *= pow(10.0, range - 5);
+ break;
+ case SR_MQ_CURRENT:
+ if (devc->scale1000 == -1)
+ devc->scale *= pow(10.0, range - 5);
+ else
+ devc->scale *= pow(10.0, range - 4);
+ break;
+ case SR_MQ_RESISTANCE:
+ devc->scale *= pow(10.0, range - 3);
+ break;
+ case SR_MQ_FREQUENCY:
+ devc->scale *= pow(10.0, range - 3);
+ break;
+ case SR_MQ_TEMPERATURE:
+ if (range == 4) { /* Indicator for °F */
+ devc->unit = SR_UNIT_FAHRENHEIT;
+ }
+
+ devc->scale *= pow(10.0, - 2);
+ break;
+ case SR_MQ_CAPACITANCE:
+ devc->scale *= pow(10.0, range - 13);
+ break;
+ /* TODO: 29S Mains measurements. */
+ }
+}
+
+/** Decode special chars (Metrahit 2x).
+ * \param[in] spc Special characters 1 and 2 (s1 | (s2<<4)).
+ */
+static void decode_spc_2x(guchar spc, struct dev_context *devc)
+{
+ /* xxxxxxx1 Fuse */
+
+ /* xxxxxx1x Low battery */
+
+ /* xxxxx1xx BEEP */
+
+ /* xxxx1xxx ZERO */
+
+ /* xxx1xxxx DATA */
+ setmqf(devc, SR_MQFLAG_HOLD, spc & 0x10);
+
+ /* x11xxxxx unused */
+ /* 1xxxxxxx MAN */
+ setmqf(devc, SR_MQFLAG_AUTORANGE, !(spc & 0x80));
+}
+
+/** Clean range and sign. */
+static void clean_rs_v(struct dev_context *devc)
+{
+ devc->value = 0.0;
+ devc->scale = 1.0;
+}
+
+/** Clean current type, measured variable, range and sign. */
+static void clean_ctmv_rs_v(struct dev_context *devc)
+{
+ devc->mq = 0;
+ devc->unit = 0;
+ devc->mqflags = 0;
+ devc->scale1000 = 0;
+ devc->vmains_29S = FALSE;
+ clean_rs_v(devc);
+}
+
+/** Send prepared value. */
+static void send_value(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_datafeed_analog analog;
+ struct sr_datafeed_packet packet;
+
+ devc = sdi->priv;
+
+ memset(&analog, 0, sizeof(analog));
+ analog.probes = sdi->probes;
+ analog.num_samples = 1;
+ analog.mq = devc->mq;
+ analog.unit = devc->unit;
+ analog.mqflags = devc->mqflags;
+ analog.data = &devc->value;
+
+ memset(&packet, 0, sizeof(packet));
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ sr_session_send(devc->cb_data, &packet);
+
+ devc->num_samples++;
+}
+
+/** Process 6-byte data message, Metrahit 1x/2x. */
+static void process_msg_dta_6(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int cnt;
+ guchar dgt;
+
+ devc = sdi->priv;
+ clean_rs_v(devc);
+
+ /* Byte 0, range and sign */
+ if (devc->model <= SR_METRAHIT_16X) {
+ decode_rs_16(bc(devc->buf[0]), devc);
+ }
+ else if (devc->model < SR_METRAHIT_2X){
+ decode_rs_18(bc(devc->buf[0]), devc);
+ } else {
+ decode_rs_2x(bc(devc->buf[0]), devc);
+ }
+
+ /* Bytes 1-5, digits (ls first). */
+ for (cnt = 0; cnt < 5; cnt++) {
+ dgt = bc(devc->buf[1 + cnt]);
+ if (dgt >= 10) {
+ /* 10 Overload; on model <= 16X also 11 possible. */
+ devc->value = NAN;
+ devc->scale = 1.0;
+ break;
+ }
+ devc->value += pow(10.0, cnt) * dgt;
+ }
+ sr_spew("process_msg_dta_6() value=%f scale=%f scalet=%d",
+ devc->value, devc->scale, devc->scale1000);
+ if (devc->value != NAN)
+ devc->value *= devc->scale * pow(1000.0, devc->scale1000);
+
+ /* Create and send packet. */
+ send_value(sdi);
+}
+
+/** Process 5-byte info message, Metrahit 1x/2x. */
+static void process_msg_inf_5(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ enum model model;
+
+ devc = sdi->priv;
+
+ clean_ctmv_rs_v(devc);
+
+ /* Process byte 0 */
+ model = sr_gmc_decode_model_sm(bc(devc->buf[0]));
+ if (model != devc->model) {
+ sr_warn("Model mismatch in data: Detected %s, now %s",
+ sr_gmc_model_str(devc->model),
+ sr_gmc_model_str(model));
+ }
+
+ /* Process bytes 1-4 */
+ if (devc->model <= SR_METRAHIT_16X) {
+ decode_ctmv_16(bc(devc->buf[1]), devc);
+ decode_spc_16(bc(devc->buf[2]) | (bc(devc->buf[3]) << 4), devc);
+ decode_rs_16(bc(devc->buf[4]), devc);
+ }
+ else if (devc->model <= SR_METRAHIT_18S) {
+ decode_ctmv_18(bc(devc->buf[1]), devc);
+ decode_spc_18(bc(devc->buf[2]) | (bc(devc->buf[3]) << 4), devc);
+ decode_rs_18(bc(devc->buf[4]), devc);
+ }
+ else { /* Must be Metrahit 2x */
+ decode_ctmv_2x(bc(devc->buf[1]), devc);
+ decode_spc_2x(bc(devc->buf[2]) | (bc(devc->buf[3]) << 4), devc);
+ decode_rs_2x(bc(devc->buf[4]), devc);
+ }
+}
+
+/** Process 10-byte info/data message, Metrahit 15+. */
+static void process_msg_inf_10(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int cnt;
+ guchar dgt;
+
+ devc = sdi->priv;
+
+ process_msg_inf_5(sdi);
+
+ /* Now decode numbers */
+ for (cnt = 0; cnt < 5; cnt++) {
+ dgt = bc(devc->buf[5 + cnt]);
+ if (dgt >= 10) { /* Overload */
+ devc->value = NAN;
+ devc->scale = 1.0;
+ break;
+ }
+ devc->value += pow(10.0, cnt) * dgt;
+ }
+ sr_spew("process_msg_inf_10() value=%f scale=%f scalet=%d",
+ devc->value, devc->scale, devc->scale1000);
+
+ if (devc->value != NAN)
+ devc->value *= devc->scale * pow(1000.0, devc->scale1000);
+
+ /* Create and send packet. */
+ send_value(sdi);
+}
+
+/** Decode send interval (Metrahit 2x only). */
+static const char* decode_send_interval(guchar si)
+{
+ switch (si) {
+ case 0x00: return "0.05";
+ case 0x01: return "0.1";
+ case 0x02: return "0.2";
+ case 0x03: return "0.5";
+ case 0x04: return "00:01";
+ case 0x05: return "00:02";
+ case 0x06: return "00:05";
+ case 0x07: return "00:10";
+ case 0x08: return "00:20";
+ case 0x09: return "00:30";
+ case 0x0a: return "01:00";
+ case 0x0b: return "02:00";
+ case 0x0c: return "05:00";
+ case 0x0d: return "10:00";
+ case 0x0e: return "----";
+ case 0x0f: return "data";
+ default: return "Unknown value";
+ }
+}
+
+/** Process 13-byte info/data message, Metrahit 2x. */
+static void process_msg_inf_13(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ enum model model;
+ int cnt;
+ guchar dgt;
+
+ devc = sdi->priv;
+
+ clean_ctmv_rs_v(devc);
+
+ /* Byte 0, model. */
+ model = sr_gmc_decode_model_sm(bc(devc->buf[0]));
+ if (model != devc->model) {
+ sr_warn("Model mismatch in data: Detected %s, now %s",
+ sr_gmc_model_str(devc->model),
+ sr_gmc_model_str(model));
+ }
+
+ /* Bytes 1-4, 11. */
+ decode_ctmv_2x(bc(devc->buf[1]) | (bc(devc->buf[11]) << 4), devc);
+ decode_spc_2x(bc(devc->buf[2]) | (bc(devc->buf[3]) << 4), devc);
+ decode_rs_2x(bc(devc->buf[4]), devc);
+
+ /* Bytes 5-10, digits (ls first). */
+ for (cnt = 0; cnt < 6; cnt++) {
+ dgt = bc(devc->buf[5 + cnt]);
+ if (dgt == 10) { /* Overload */
+ devc->value = NAN;
+ devc->scale = 1.0;
+ break;
+ }
+ devc->value += pow(10.0, cnt) * dgt;
+ }
+ sr_spew("process_msg_inf_13() value=%f scale=%f scale1000=%d mq=%d "
+ "unit=%d mqflags=0x%02llx", devc->value, devc->scale,
+ devc->scale1000, devc->mq, devc->unit, devc->mqflags);
+ if (devc->value != NAN)
+ devc->value *= devc->scale * pow(1000.0, devc->scale1000);
+
+ /* Byte 12, Send Interval */
+ sr_spew("Send interval: %s", decode_send_interval(bc(devc->buf[12])));
+
+ /* Create and send packet. */
+ send_value(sdi);
+}
+
+
SR_PRIV int gmc_mh_1x_2x_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;
+ unsigned char buf, msgt;
+ int len;
(void)fd;
if (!(devc = sdi->priv))
return TRUE;
- if (revents == G_IO_IN) {
- /* TODO */
+ serial = sdi->conn;
+
+ if (revents == G_IO_IN) { /* Serial data arrived. */
+ while (GMC_BUFSIZE - devc->buflen - 1 > 0) {
+ len = serial_read(serial, devc->buf + devc->buflen, 1);
+ if (len < 1)
+ break;
+ buf = *(devc->buf + devc->buflen);
+ sr_spew("read 0x%02x/%d/%d", buf, buf, buf & MSGC_MASK);
+ devc->buflen += len;
+ if (!devc->settings_ok) {
+ /* If no device type/settings record processed
+ * yet, wait for one. */
+ if ((devc->buf[0] & MSGID_MASK) != MSGID_INF) {
+ devc->buflen = 0;
+ continue;
+ }
+ devc->settings_ok = TRUE;
+ }
+
+ msgt = devc->buf[0] & MSGID_MASK;
+ switch (msgt) {
+ case MSGID_INF:
+ if (devc->buflen == 13) {
+ process_msg_inf_13(sdi);
+ devc->buflen = 0;
+ continue;
+ }
+ else if ((devc->buflen == 10) &&
+ (devc->model <= SR_METRAHIT_18S)) {
+ process_msg_inf_10(sdi);
+ devc->buflen = 0;
+ continue;
+ }
+ else if ((devc->buflen >= 5) &&
+ (devc->buf[devc->buflen-1] &
+ MSGID_MASK) != MSGID_DATA) {
+ /* Char just received is beginning
+ * of next message */
+ process_msg_inf_5(sdi);
+ devc->buf[0] =devc->buf[devc->buflen-1];
+ devc->buflen = 1;
+ continue;
+ }
+ break;
+ case MSGID_DTA:
+ case MSGID_D10:
+ if (devc->buflen == 6) {
+ process_msg_dta_6(sdi);
+ devc->buflen = 0;
+ }
+ break;
+ case MSGID_DATA:
+ sr_err("Comm error, unexpected data byte!");
+ devc->buflen = 0;
+ break;
+ }
+ }
+ }
+
+ /* If number of samples or time limit reached, stop aquisition. */
+ if (devc->limit_samples && (devc->num_samples >= devc->limit_samples)) {
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ }
+
+ if (devc->limit_msec) {
+ gdouble elapsed_s = g_timer_elapsed(devc->elapsed_msec, NULL);
+ if ((elapsed_s * 1000) >= devc->limit_msec) {
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ }
}
return TRUE;
}
+
+
+/** Decode model in "send mode" */
+SR_PRIV int sr_gmc_decode_model_sm(guchar mcode)
+{
+ if (mcode > 0xf) {
+ sr_err("decode_model(%d): Model code 0..15 expected!", mcode);
+ return SR_METRAHIT_NONE;
+ }
+
+ switch(mcode) {
+ case 0x04: /* 0100b */
+ return SR_METRAHIT_12S;
+ case 0x08: /* 1000b */
+ return SR_METRAHIT_13S14A;
+ case 0x09: /* 1001b */
+ return SR_METRAHIT_14S;
+ case 0x0A: /* 1010b */
+ return SR_METRAHIT_15S;
+ case 0x0B: /* 1011b */
+ return SR_METRAHIT_16S;
+ case 0x06: /* 0110b (undocumented by GMC!) */
+ return SR_METRAHIT_16I;
+ case 0x0D: /* 1101b */
+ return SR_METRAHIT_18S;
+ case 0x02: /* 0010b */
+ return SR_METRAHIT_22SM;
+ case 0x03: /* 0011b */
+ return SR_METRAHIT_23S;
+ case 0x0f: /* 1111b */
+ return SR_METRAHIT_24S;
+ case 0x05: /* 0101b */
+ return SR_METRAHIT_25SM;
+ case 0x01: /* 0001b */
+ return SR_METRAHIT_26S;
+ case 0x0c: /* 1100b */
+ return SR_METRAHIT_28S;
+ case 0x0e: /* 1110b */
+ return SR_METRAHIT_29S;
+ default:
+ sr_err("Unknown model code %d!", mcode);
+ return SR_METRAHIT_NONE;
+ }
+}
+
+/** Decode model in bidirectional mode.
+ \param[in] mcode Model code.
+
+ \return Model code
+*/
+SR_PRIV int sr_gmc_decode_model_bidi(guchar mcode)
+{
+ switch(mcode) {
+ case 2: return SR_METRAHIT_22SM;
+ case 3: return SR_METRAHIT_23S;
+ case 4: return SR_METRAHIT_24S;
+ case 5: return SR_METRAHIT_25SM;
+ case 1: return SR_METRAHIT_26S;
+ case 12: return SR_METRAHIT_28S;
+ case 14: return SR_METRAHIT_29S;
+ default:
+ sr_err("Unknown model code %d!", mcode);
+ return SR_METRAHIT_NONE;
+ }
+}
+
+SR_PRIV const char* sr_gmc_model_str(enum model mcode)
+{
+ switch (mcode) {
+ case SR_METRAHIT_NONE:
+ return "-uninitialized model variable-";
+ case SR_METRAHIT_12S:
+ return "METRAHit 12S";
+ case SR_METRAHIT_13S14A:
+ return "METRAHit 13S/14A";
+ case SR_METRAHIT_14S:
+ return "METRAHit 14S";
+ case SR_METRAHIT_15S:
+ return "METRAHit 15S";
+ case SR_METRAHIT_16S:
+ return "METRAHit 16S";
+ case SR_METRAHIT_16I:
+ return "METRAHit 16I";
+ case SR_METRAHIT_18S:
+ return "METRAHit 18S";
+ case SR_METRAHIT_22SM:
+ return "METRAHit 22S/M";
+ case SR_METRAHIT_23S:
+ return "METRAHit 23S";
+ case SR_METRAHIT_24S:
+ return "METRAHit 24S";
+ case SR_METRAHIT_25SM:
+ return "METRAHit 25S/M";
+ case SR_METRAHIT_26S:
+ return "METRAHit 26S";
+ case SR_METRAHIT_28S:
+ return "METRAHit 28S";
+ case SR_METRAHIT_29S:
+ return "METRAHit 29S";
+ default:
+ return "Unknown model code";
+ }
+}