#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+static const int hwopts[] = {
+ SR_HWOPT_CONN,
+ SR_HWOPT_SERIALCOMM,
+ 0,
+};
+
+static const int hwcaps[] = {
+ SR_HWCAP_SOUNDLEVELMETER,
+ SR_HWCAP_LIMIT_SAMPLES,
+ SR_HWCAP_LIMIT_MSEC,
+ SR_HWCAP_CONTINUOUS,
+ 0,
+};
+
+static const char *probe_names[] = {
+ "P1",
+ NULL,
+};
SR_PRIV struct sr_dev_driver colead_slm_driver_info;
static struct sr_dev_driver *di = &colead_slm_driver_info;
continue;
if (!(devc = sdi->priv))
continue;
-
- /* TODO */
-
+ sr_serial_dev_inst_free(devc->serial);
sr_dev_inst_free(sdi);
}
-
g_slist_free(drvc->instances);
drvc->instances = NULL;
return SR_ERR;
}
- /* TODO */
-
di->priv = drvc;
return SR_OK;
static GSList *hw_scan(GSList *options)
{
struct drv_context *drvc;
- GSList *devices;
-
- (void)options;
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ struct sr_hwopt *opt;
+ struct sr_probe *probe;
+ GSList *devices, *l;
+ const char *conn, *serialcomm;
devices = NULL;
drvc = di->priv;
drvc->instances = NULL;
- /* TODO */
+ conn = serialcomm = NULL;
+ for (l = options; l; l = l->next) {
+ opt = l->data;
+ switch (opt->hwopt) {
+ case SR_HWOPT_CONN:
+ conn = opt->value;
+ break;
+ case SR_HWOPT_SERIALCOMM:
+ serialcomm = opt->value;
+ break;
+ }
+ }
+ if (!conn)
+ return NULL;
+
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead",
+ "SL-5868P", NULL)))
+ return NULL;
+
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
+ sr_dbg("failed to malloc devc");
+ return NULL;
+ }
+
+ if (!serialcomm)
+ /* The Colead SL-5868P uses this. */
+ serialcomm = "2400/8n1";
+
+ devc->serial = sr_serial_dev_inst_new(conn, -1);
+ devc->serialcomm = g_strdup(serialcomm);
+ sdi->priv = devc;
+ sdi->driver = di;
+ 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 int hw_dev_open(struct sr_dev_inst *sdi)
{
- /* TODO */
+ struct dev_context *devc;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ sr_dbg("opening %s with %s", devc->serial->port, devc->serialcomm);
+ devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK);
+ if (devc->serial->fd == -1) {
+ sr_err("Couldn't open serial port '%s'.",
+ devc->serial->port);
+ return SR_ERR;
+ }
+ if (serial_set_paramstr(devc->serial->fd, devc->serialcomm) != SR_OK) {
+ sr_err("Unable to set serial parameters.");
+ return SR_ERR;
+ }
+ sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int hw_dev_close(struct sr_dev_inst *sdi)
{
- /* TODO */
+ struct dev_context *devc;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ if (devc->serial && devc->serial->fd != -1) {
+ serial_close(devc->serial->fd);
+ devc->serial->fd = -1;
+ sdi->status = SR_ST_INACTIVE;
+ }
return SR_OK;
}
{
clear_instances();
- /* TODO */
-
return SR_OK;
}
static int hw_info_get(int info_id, const void **data,
const struct sr_dev_inst *sdi)
{
+
+ (void)sdi;
+
switch (info_id) {
- /* TODO */
+ case SR_DI_HWOPTS:
+ *data = hwopts;
+ break;
+ case SR_DI_HWCAPS:
+ *data = hwcaps;
+ break;
+ case SR_DI_NUM_PROBES:
+ *data = GINT_TO_POINTER(1);
+ break;
+ case SR_DI_PROBE_NAMES:
+ *data = probe_names;
+ break;
default:
- sr_err("Unknown info_id: %d.", info_id);
return SR_ERR_ARG;
}
static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
const void *value)
{
- int ret;
+ struct dev_context *devc;
- if (sdi->status != SR_ST_ACTIVE) {
- sr_err("Device inactive, can't set config options.");
+ if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
}
- ret = SR_OK;
switch (hwcap) {
- /* TODO */
+ case SR_HWCAP_LIMIT_MSEC:
+ /* TODO: not yet implemented */
+ if (*(const uint64_t *)value == 0) {
+ sr_err("LIMIT_MSEC can't be 0.");
+ return SR_ERR;
+ }
+ devc->limit_msec = *(const uint64_t *)value;
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_HWCAP_LIMIT_SAMPLES:
+ devc->limit_samples = *(const uint64_t *)value;
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
default:
- sr_err("Unknown hardware capability: %d.", hwcap);
- ret = SR_ERR_ARG;
+ sr_err("Unknown capability: %d.", hwcap);
+ return SR_ERR;
+ break;
}
- return ret;
+ return SR_OK;
}
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
- /* TODO */
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_header header;
+ struct sr_datafeed_meta_analog meta;
+ struct dev_context *devc;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ sr_dbg("Starting acquisition.");
+
+ devc->cb_data = cb_data;
+
+ /* Send header packet to the session bus. */
+ sr_dbg("Sending SR_DF_HEADER.");
+ packet.type = SR_DF_HEADER;
+ packet.payload = (uint8_t *)&header;
+ header.feed_version = 1;
+ gettimeofday(&header.starttime, NULL);
+ sr_session_send(devc->cb_data, &packet);
+
+ /* Send metadata about the SR_DF_ANALOG packets to come. */
+ sr_dbg("Sending SR_DF_META_ANALOG.");
+ packet.type = SR_DF_META_ANALOG;
+ packet.payload = &meta;
+ meta.num_probes = 1;
+ sr_session_send(devc->cb_data, &packet);
+
+ /* Poll every 150ms, or whenever some data comes in. */
+ sr_source_add(devc->serial->fd, G_IO_IN, 150, colead_slm_receive_data,
+ (void *)sdi);
return SR_OK;
}
static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
void *cb_data)
{
- (void)cb_data;
+ struct sr_datafeed_packet packet;
+ struct dev_context *devc;
- if (sdi->status != SR_ST_ACTIVE) {
- sr_err("Device inactive, can't stop acquisition.");
+ if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
+
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
}
- /* TODO */
+ sr_dbg("Stopping acquisition.");
+
+ sr_source_remove(devc->serial->fd);
+ hw_dev_close((struct sr_dev_inst *)sdi);
+
+ /* Send end packet to the session bus. */
+ sr_dbg("Sending SR_DF_END.");
+ packet.type = SR_DF_END;
+ sr_session_send(cb_data, &packet);
return SR_OK;
}
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
+#include <errno.h>
+#include <string.h>
+
+
+static void process_packet(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_analog analog;
+ GString *dbg;
+ float fvalue;
+ int checksum, mode, i;
+
+ devc = sdi->priv;
+ if (sr_log_loglevel_get() >= SR_LOG_SPEW) {
+ dbg = g_string_sized_new(128);
+ g_string_printf(dbg, "received packet:");
+ for (i = 0; i < 10; i++)
+ g_string_append_printf(dbg, " %.2x", (devc->buf)[i]);
+ sr_spew("%s", dbg->str);
+ g_string_free(dbg, TRUE);
+ }
+
+ if (devc->buf[0] != 0x08 || devc->buf[1] != 0x04) {
+ sr_dbg("invalid packet header.");
+ return;
+ }
+
+ if (devc->buf[8] != 0x01) {
+ sr_dbg("invalid measurement.");
+ return;
+ }
+
+ checksum = 0;
+ for (i = 0; i < 9; i++)
+ checksum += devc->buf[i];
+ if ((checksum & 0xff) != devc->buf[9]) {
+ sr_dbg("invalid packet checksum.");
+ return;
+ }
+
+ fvalue = 0.0;
+ for (i = 3; i < 8; i++) {
+ if (devc->buf[i] > 0x09)
+ continue;
+ fvalue *= 10;
+ fvalue += devc->buf[i];
+ }
+ fvalue /= 10;
+
+ memset(&analog, 0, sizeof(struct sr_datafeed_analog));
+ analog.mq = SR_MQ_SOUND_PRESSURE_LEVEL;
+ analog.unit = SR_UNIT_DECIBEL_SPL;
+ analog.num_samples = 1;
+ analog.data = &fvalue;
+
+ /* High nibble should only have 0x01 or 0x02. */
+ mode = (devc->buf[2] >> 4) & 0x0f;
+ if (mode == 0x02)
+ analog.mqflags |= SR_MQFLAG_HOLD;
+ else if (mode != 0x01) {
+ sr_dbg("unknown measurement mode 0x%.2x", mode);
+ return;
+ }
+
+ /* Low nibble has 14 combinations of direct/long-term average,
+ * time scale of that average, frequency weighting, and time
+ * weighting. */
+ mode = devc->buf[2] & 0x0f;
+ switch (mode) {
+ case 0x0:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0x1:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0x2:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_C \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0x3:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_C \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0x4:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0x5:
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0x6:
+ analog.mqflags |= SR_MQFLAG_SPL_PCT_OVER_ALARM \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0x7:
+ analog.mqflags |= SR_MQFLAG_SPL_PCT_OVER_ALARM \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0x8:
+ /* 10-second mean, but we don't have MQ flags to express it. */
+ analog.mqflags |= SR_MQFLAG_SPL_LAT \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0x9:
+ /* Mean over a time period between 11 seconds and 24 hours.
+ * Which is so silly that there's no point in expressing
+ * either this or the previous case. */
+ analog.mqflags |= SR_MQFLAG_SPL_LAT \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_F;
+ break;
+ case 0xa:
+ /* 10-second mean. */
+ analog.mqflags |= SR_MQFLAG_SPL_LAT \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0xb:
+ /* Mean over a time period between 11 seconds and 24 hours. */
+ analog.mqflags |= SR_MQFLAG_SPL_LAT \
+ | SR_MQFLAG_SPL_FREQ_WEIGHT_A \
+ | SR_MQFLAG_SPL_TIME_WEIGHT_S;
+ break;
+ case 0xc:
+ /* Internal calibration on 1kHz sine at 94dB, not useful
+ * to anything but the device. */
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT;
+ break;
+ case 0xd:
+ /* Internal calibration on 1kHz sine at 94dB, not useful
+ * to anything but the device. */
+ analog.mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_FLAT;
+ break;
+ default:
+ sr_dbg("unknown configuration 0x%.2x", mode);
+ return;
+ break;
+ }
+
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ sr_session_send(devc->cb_data, &packet);
+
+ devc->num_samples++;
+
+}
SR_PRIV int colead_slm_receive_data(int fd, int revents, void *cb_data)
{
const struct sr_dev_inst *sdi;
struct dev_context *devc;
+ int len;
+ char buf[128];
if (!(sdi = cb_data))
return TRUE;
if (!(devc = sdi->priv))
return TRUE;
- if (revents == G_IO_IN) {
- /* TODO */
+ if (revents != G_IO_IN)
+ /* Timeout event. */
+ return TRUE;
+
+ if (devc->state == IDLE) {
+ if (serial_read(fd, buf, 128) != 1 || buf[0] != 0x10)
+ /* Nothing there, or caught the tail end of a previous packet,
+ * or some garbage. Unless it's a single "data ready" byte,
+ * we don't want it. */
+ return TRUE;
+ /* Got 0x10, "measurement ready". */
+ if (serial_write(fd, "\x20", 1) == -1)
+ sr_err("unable to send command: %s", strerror(errno));
+ else {
+ devc->state = COMMAND_SENT;
+ devc->buflen = 0;
+ }
+ } else {
+ len = serial_read(fd, devc->buf + devc->buflen, 10 - devc->buflen);
+ if (len < 1)
+ return TRUE;
+ devc->buflen += len;
+ if (devc->buflen > 10) {
+ sr_dbg("buffer overrun");
+ devc->state = IDLE;
+ return TRUE;
+ }
+ if (devc->buflen == 10) {
+ /* If we got here, we're sure the device sent a "data ready"
+ * notification, we asked for data, and got it. */
+ process_packet(sdi);
+ devc->state = IDLE;
+ }
}
return TRUE;
}
+
projects / libsigrok.git / commitdiff