SR_PRIV struct sr_dev_driver baylibre_acme_driver_info;
static struct sr_dev_driver *di = &baylibre_acme_driver_info;
+static const uint32_t devopts[] = {
+ SR_CONF_CONTINUOUS | SR_CONF_SET,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+};
+
+#define MAX_SAMPLE_RATE 500 /* In Hz */
+
+static const uint64_t samplerates[] = {
+ SR_HZ(1),
+ SR_HZ(MAX_SAMPLE_RATE),
+ SR_HZ(1),
+};
+
static int init(struct sr_context *sr_ctx)
{
return std_init(sr_ctx, di, LOG_PREFIX);
static GSList *scan(GSList *options)
{
struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
GSList *devices;
+ gboolean status;
+ int i;
(void)options;
- devices = NULL;
drvc = di->priv;
- drvc->instances = NULL;
+ devices = NULL;
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->samplerate = SR_HZ(10);
+
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->model = g_strdup("Acme cape");
+ sdi->driver = di;
+ sdi->priv = devc;
+
+ status = bl_acme_is_sane();
+ if (!status)
+ goto err_out;
+
+ /*
+ * Iterate over all ACME connectors and check if any probes
+ * are present.
+ */
+ for (i = 0; i < MAX_PROBES; i++) {
+ /*
+ * First check if there's an energy probe on this connector. If
+ * not, and we're already at the fifth probe - see if we can
+ * detect a temperature probe.
+ */
+ status = bl_acme_detect_probe(bl_acme_get_enrg_addr(i),
+ PROBE_NUM(i),
+ ENRG_PROBE_NAME);
+ if (status) {
+ /* Energy probe detected. */
+ status = bl_acme_register_probe(sdi,
+ PROBE_ENRG,
+ bl_acme_get_enrg_addr(i),
+ PROBE_NUM(i));
+ if (!status) {
+ sr_err("Error registering power probe %d",
+ PROBE_NUM(i));
+ continue;
+ }
+
+ } else if (i >= TEMP_PRB_START_INDEX) {
+ status = bl_acme_detect_probe(bl_acme_get_temp_addr(i),
+ PROBE_NUM(i),
+ TEMP_PROBE_NAME);
+ if (status) {
+ /* Temperature probe detected. */
+ status = bl_acme_register_probe(sdi,PROBE_TEMP,
+ bl_acme_get_temp_addr(i),
+ PROBE_NUM(i));
+ if (!status) {
+ sr_err("Error registering temp "
+ "probe %d", PROBE_NUM(i));
+ continue;
+ }
+ }
+
+ }
+ }
+
+ devices = g_slist_append(devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
return devices;
+
+err_out:
+ g_free(devc);
+ sr_dev_inst_free(sdi);
+
+ return NULL;
}
static GSList *dev_list(void)
{
(void)sdi;
- /* TODO: get handle from sdi->conn and open it. */
-
+ /* Nothing to do here. */
sdi->status = SR_ST_ACTIVE;
return SR_OK;
{
(void)sdi;
- /* TODO: get handle from sdi->conn and close it. */
-
+ /* Nothing to do here. */
sdi->status = SR_ST_INACTIVE;
return SR_OK;
{
dev_clear();
- /* 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)
+static int config_get(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
+ struct dev_context *devc;
int ret;
- (void)sdi;
- (void)data;
(void)cg;
+ 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_LIMIT_MSEC:
+ *data = g_variant_new_uint64(devc->limit_msec);
+ break;
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->samplerate);
+ break;
default:
return SR_ERR_NA;
}
return ret;
}
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+static int config_set(uint32_t key, GVariant *data,
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
+ struct dev_context *devc;
+ uint64_t samplerate;
int ret;
- (void)data;
(void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
+ devc = sdi->priv;
+
ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ devc->limit_msec = 0;
+ sr_dbg("Setting sample limit to %" PRIu64,
+ devc->limit_samples);
+ break;
+ case SR_CONF_LIMIT_MSEC:
+ devc->limit_msec = g_variant_get_uint64(data) * 1000;
+ devc->limit_samples = 0;
+ sr_dbg("Setting time limit to %" PRIu64"ms", devc->limit_msec);
+ break;
+ case SR_CONF_SAMPLERATE:
+ samplerate = g_variant_get_uint64(data);
+ if (samplerate > MAX_SAMPLE_RATE) {
+ sr_err("Maximum sample rate is %d", MAX_SAMPLE_RATE);
+ ret = SR_ERR_SAMPLERATE;
+ break;
+ }
+ devc->samplerate = samplerate;
+ sr_dbg("Setting samplerate to %" PRIu64, devc->samplerate);
+ break;
default:
ret = SR_ERR_NA;
}
return ret;
}
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+static int config_list(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
+ GVariant *gvar;
+ GVariantBuilder gvb;
int ret;
(void)sdi;
- (void)data;
(void)cg;
ret = SR_OK;
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_SAMPLERATE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
+ samplerates,
+ ARRAY_SIZE(samplerates),
+ sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
+ *data = g_variant_builder_end(&gvb);
+ 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;
+ struct dev_context *devc;
+
(void)cb_data;
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->samples_read = 0;
+
+ if (pipe(devc->pipe_fds)) {
+ sr_err("Error setting up pipe");
+ return SR_ERR;
+ }
+
+ devc->channel = g_io_channel_unix_new(devc->pipe_fds[0]);
+ g_io_channel_set_flags(devc->channel, G_IO_FLAG_NONBLOCK, NULL);
+ g_io_channel_set_encoding(devc->channel, NULL, NULL);
+ g_io_channel_set_buffered(devc->channel, FALSE);
+
+ sr_session_source_add_channel(sdi->session, devc->channel,
+ G_IO_IN | G_IO_ERR, 1,
+ bl_acme_receive_data, (void *)sdi);
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(sdi, LOG_PREFIX);
+ devc->start_time = g_get_monotonic_time();
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
+ struct sr_datafeed_packet packet;
+ struct dev_context *devc;
+
(void)cb_data;
+ devc = sdi->priv;
+
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: stop acquisition. */
+ sr_session_source_remove_channel(sdi->session, devc->channel);
+ g_io_channel_shutdown(devc->channel, FALSE, NULL);
+ g_io_channel_unref(devc->channel);
+ devc->channel = NULL;
+
+ /* Send last packet. */
+ packet.type = SR_DF_END;
+ sr_session_send(sdi, &packet);
return SR_OK;
}
SR_PRIV struct sr_dev_driver baylibre_acme_driver_info = {
.name = "baylibre-acme",
- .longname = "baylibre-acme",
+ .longname = "BayLibre ACME (Another Cute Measurement Equipment)",
.api_version = 1,
.init = init,
.cleanup = cleanup,
projects / libsigrok.git / blobdiff