* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <string.h>
#include "protocol.h"
+#define SERIALCOMM "9600/8n1"
+/* 23ms is the longest interval between tokens. */
+#define MAX_SCAN_TIME 25 * 1000
+
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+};
+
+static const int32_t hwcaps[] = {
+ SR_CONF_SOUNDLEVELMETER,
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_CONTINUOUS,
+ SR_CONF_SPL_WEIGHT_FREQ,
+ SR_CONF_SPL_WEIGHT_TIME,
+ SR_CONF_SPL_MEASUREMENT_RANGE,
+ SR_CONF_DATALOG,
+ SR_CONF_HOLD_MAX,
+ SR_CONF_HOLD_MIN,
+ SR_CONF_POWER_OFF,
+ SR_CONF_DATA_SOURCE,
+};
+
+static const char *weight_freq[] = {
+ "A",
+ "C",
+};
+
+static const char *weight_time[] = {
+ "F",
+ "S",
+};
+
+static const uint64_t meas_ranges[][2] = {
+ { 30, 130 },
+ { 30, 80 },
+ { 50, 100 },
+ { 80, 130 },
+};
+
+static const char *data_sources[] = {
+ "Live",
+ "Memory",
+};
SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
static GSList *scan(GSList *options)
{
struct drv_context *drvc;
- GSList *devices;
+ struct dev_context *devc;
+ struct sr_config *src;
+ struct sr_serial_dev_inst *serial;
+ struct sr_dev_inst *sdi;
+ struct sr_channel *ch;
+ GSList *l, *devices;
+ gint64 start;
+ const char *conn;
+ unsigned char c;
+
+ conn = NULL;
+ for (l = options; l; l = l->next) {
+ src = l->data;
+ if (src->key == SR_CONF_CONN)
+ conn = g_variant_get_string(src->data, NULL);
+ }
+ if (!conn)
+ return NULL;
- (void)options;
+ if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
+ return NULL;
+
+ if (serial_open(serial, SERIAL_RDONLY | SERIAL_NONBLOCK) != SR_OK)
+ return NULL;
devices = NULL;
drvc = di->priv;
- drvc->instances = NULL;
+ start = g_get_monotonic_time();
+ while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
+ if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
+ /* Found one. */
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
+ "DT-885x", NULL)))
+ return NULL;
+
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
+ sr_dbg("Device context malloc failed.");
+ return NULL;
+ }
+ devc->cur_mqflags = 0;
+ devc->recording = -1;
+ devc->cur_meas_range = 0;
+ devc->cur_data_source = DATA_SOURCE_LIVE;
+ devc->enable_data_source_memory = FALSE;
+
+ if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
+ return NULL;
+
+ sdi->inst_type = SR_INST_SERIAL;
+ sdi->priv = devc;
+ sdi->driver = di;
+ if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
+ return NULL;
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+ break;
+ }
+ /* It takes about 1ms for a byte to come in. */
+ g_usleep(1000);
+ }
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ serial_close(serial);
return devices;
}
static GSList *dev_list(void)
{
- struct drv_context *drvc;
-
- drvc = di->priv;
-
- return drvc->instances;
-}
-
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
+ return ((struct drv_context *)(di->priv))->instances;
}
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ struct sr_serial_dev_inst *serial;
- /* TODO: get handle from sdi->conn and open it. */
+ serial = sdi->conn;
+ if (serial_open(serial, SERIAL_RDWR) != SR_OK)
+ return SR_ERR;
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(void)
{
- dev_clear();
-
- /* TODO: free other driver resources, if any. */
-
- return SR_OK;
+ return std_dev_clear(di, NULL);
}
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ GVariant *range[2];
+ uint64_t low, high;
+ int tmp, ret;
- (void)sdi;
- (void)data;
+ (void)cg;
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ case SR_CONF_DATALOG:
+ if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
+ *data = g_variant_new_boolean(tmp);
+ break;
+ case SR_CONF_SPL_WEIGHT_FREQ:
+ tmp = cem_dt_885x_weight_freq_get(sdi);
+ if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
+ *data = g_variant_new_string("A");
+ else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
+ *data = g_variant_new_string("C");
+ else
+ return SR_ERR;
+ break;
+ case SR_CONF_SPL_WEIGHT_TIME:
+ tmp = cem_dt_885x_weight_time_get(sdi);
+ if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
+ *data = g_variant_new_string("F");
+ else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
+ *data = g_variant_new_string("S");
+ else
+ return SR_ERR;
+ break;
+ case SR_CONF_HOLD_MAX:
+ if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
+ *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
+ break;
+ case SR_CONF_HOLD_MIN:
+ if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
+ *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
+ break;
+ case SR_CONF_SPL_MEASUREMENT_RANGE:
+ if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
+ range[0] = g_variant_new_uint64(low);
+ range[1] = g_variant_new_uint64(high);
+ *data = g_variant_new_tuple(range, 2);
+ }
+ break;
+ case SR_CONF_POWER_OFF:
+ *data = g_variant_new_boolean(FALSE);
+ break;
+ case SR_CONF_DATA_SOURCE:
+ if (devc->cur_data_source == DATA_SOURCE_LIVE)
+ *data = g_variant_new_string("Live");
+ else
+ *data = g_variant_new_string("Memory");
+ break;
default:
return SR_ERR_NA;
}
return ret;
}
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
+static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ uint64_t tmp_u64, low, high;
+ unsigned int i;
+ int tmp, ret;
+ const char *tmp_str;
- (void)data;
+ (void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ tmp_u64 = g_variant_get_uint64(data);
+ devc->limit_samples = tmp_u64;
+ ret = SR_OK;
+ break;
+ case SR_CONF_DATALOG:
+ ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
+ break;
+ case SR_CONF_SPL_WEIGHT_FREQ:
+ tmp_str = g_variant_get_string(data, NULL);
+ if (!strcmp(tmp_str, "A"))
+ ret = cem_dt_885x_weight_freq_set(sdi,
+ SR_MQFLAG_SPL_FREQ_WEIGHT_A);
+ else if (!strcmp(tmp_str, "C"))
+ ret = cem_dt_885x_weight_freq_set(sdi,
+ SR_MQFLAG_SPL_FREQ_WEIGHT_C);
+ else
+ return SR_ERR_ARG;
+ break;
+ case SR_CONF_SPL_WEIGHT_TIME:
+ tmp_str = g_variant_get_string(data, NULL);
+ if (!strcmp(tmp_str, "F"))
+ ret = cem_dt_885x_weight_time_set(sdi,
+ SR_MQFLAG_SPL_TIME_WEIGHT_F);
+ else if (!strcmp(tmp_str, "S"))
+ ret = cem_dt_885x_weight_time_set(sdi,
+ SR_MQFLAG_SPL_TIME_WEIGHT_S);
+ else
+ return SR_ERR_ARG;
+ break;
+ case SR_CONF_HOLD_MAX:
+ tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
+ ret = cem_dt_885x_holdmode_set(sdi, tmp);
+ break;
+ case SR_CONF_HOLD_MIN:
+ tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
+ ret = cem_dt_885x_holdmode_set(sdi, tmp);
+ break;
+ case SR_CONF_SPL_MEASUREMENT_RANGE:
+ g_variant_get(data, "(tt)", &low, &high);
+ ret = SR_ERR_ARG;
+ for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
+ if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
+ ret = cem_dt_885x_meas_range_set(sdi, low, high);
+ break;
+ }
+ }
+ break;
+ case SR_CONF_POWER_OFF:
+ if (g_variant_get_boolean(data))
+ ret = cem_dt_885x_power_off(sdi);
+ break;
+ case SR_CONF_DATA_SOURCE:
+ tmp_str = g_variant_get_string(data, NULL);
+ if (!strcmp(tmp_str, "Live"))
+ devc->cur_data_source = DATA_SOURCE_LIVE;
+ else if (!strcmp(tmp_str, "Memory"))
+ devc->cur_data_source = DATA_SOURCE_MEMORY;
+ else
+ return SR_ERR;
+ devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
+ break;
default:
ret = SR_ERR_NA;
}
return ret;
}
-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_channel_group *cg)
{
+ GVariant *tuple, *range[2];
+ GVariantBuilder gvb;
+ unsigned int i;
int ret;
(void)sdi;
- (void)data;
+ (void)cg;
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;
+ case SR_CONF_SPL_WEIGHT_FREQ:
+ *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
+ break;
+ case SR_CONF_SPL_WEIGHT_TIME:
+ *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
+ break;
+ case SR_CONF_SPL_MEASUREMENT_RANGE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
+ range[0] = g_variant_new_uint64(meas_ranges[i][0]);
+ range[1] = g_variant_new_uint64(meas_ranges[i][1]);
+ tuple = g_variant_new_tuple(range, 2);
+ g_variant_builder_add_value(&gvb, tuple);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_DATA_SOURCE:
+ *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
+ break;
default:
return SR_ERR_NA;
}
return ret;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
+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. */
+ if (!(devc = sdi->priv)) {
+ sr_err("sdi->priv was NULL.");
+ return SR_ERR_BUG;
+ }
+
+ devc->cb_data = cb_data;
+ devc->state = ST_INIT;
+ devc->num_samples = 0;
+ devc->buf_len = 0;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Poll every 100ms, or whenever some data comes in. */
+ serial = sdi->conn;
+ serial_source_add(serial, G_IO_IN, 150, cem_dt_885x_receive_data,
+ (void *)sdi);
return SR_OK;
}
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 cem_dt_885x_driver_info = {
.cleanup = cleanup,
.scan = scan,
.dev_list = dev_list,
- .dev_clear = dev_clear,
+ .dev_clear = NULL,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
.dev_open = dev_open,
- .dev_close = dev_close,
+ .dev_close = std_serial_dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
.priv = NULL,
projects / libsigrok.git / blobdiff