X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fhwdriver.c;h=3e6b00126488ef58dd562cef0f7d12f124ce742b;hb=da39089014f845085efdb10acca83f0742b7e9fd;hp=deff5a7b2a9b703203ccf011256647d68e25f8ea;hpb=f200d59ee21a42998752c4319d4ff48e129c95c5;p=libsigrok.git

diff --git a/src/hwdriver.c b/src/hwdriver.c
index deff5a7b..3e6b0012 100644
--- a/src/hwdriver.c
+++ b/src/hwdriver.c
@@ -394,6 +394,8 @@ SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
 		return SR_ERR_ARG;
 	}
 
+	/* No log message here, too verbose and not very useful. */
+
 	if ((ret = driver->init(driver, ctx)) < 0)
 		sr_err("Failed to initialize the driver: %d.", ret);
 
@@ -527,8 +529,7 @@ SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options)
 
 	l = driver->scan(driver, options);
 
-	sr_spew("Scan of '%s' found %d devices.", driver->name,
-		g_slist_length(l));
+	sr_spew("Scan found %d devices (%s).", g_slist_length(l), driver->name);
 
 	return l;
 }
@@ -548,6 +549,8 @@ SR_PRIV void sr_hw_cleanup_all(const struct sr_context *ctx)
 	if (!ctx)
 		return;
 
+	sr_dbg("Cleaning up all drivers.");
+
 	drivers = sr_driver_list(ctx);
 	for (i = 0; drivers[i]; i++) {
 		if (drivers[i]->cleanup)
@@ -581,7 +584,6 @@ SR_PRIV struct sr_config *sr_config_new(uint32_t key, GVariant *data)
  */
 SR_PRIV void sr_config_free(struct sr_config *src)
 {
-
 	if (!src || !src->data) {
 		sr_err("%s: invalid data!", __func__);
 		return;
@@ -589,7 +591,44 @@ SR_PRIV void sr_config_free(struct sr_config *src)
 
 	g_variant_unref(src->data);
 	g_free(src);
+}
+
+/** @private */
+SR_PRIV int sr_dev_acquisition_start(struct sr_dev_inst *sdi)
+{
+	if (!sdi || !sdi->driver) {
+		sr_err("%s: Invalid arguments.", __func__);
+		return SR_ERR_ARG;
+	}
+
+	if (sdi->status != SR_ST_ACTIVE) {
+		sr_err("%s: Device instance not active, can't start.",
+			sdi->driver->name);
+		return SR_ERR_DEV_CLOSED;
+	}
+
+	sr_dbg("%s: Starting acquisition.", sdi->driver->name);
 
+	return sdi->driver->dev_acquisition_start(sdi);
+}
+
+/** @private */
+SR_PRIV int sr_dev_acquisition_stop(struct sr_dev_inst *sdi)
+{
+	if (!sdi || !sdi->driver) {
+		sr_err("%s: Invalid arguments.", __func__);
+		return SR_ERR_ARG;
+	}
+
+	if (sdi->status != SR_ST_ACTIVE) {
+		sr_err("%s: Device instance not active, can't stop.",
+			sdi->driver->name);
+		return SR_ERR_DEV_CLOSED;
+	}
+
+	sr_dbg("%s: Stopping acquisition.", sdi->driver->name);
+
+	return sdi->driver->dev_acquisition_stop(sdi);
 }
 
 static void log_key(const struct sr_dev_inst *sdi,
@@ -767,7 +806,11 @@ SR_API int sr_config_set(const struct sr_dev_inst *sdi,
 		ret = SR_ERR;
 	else if (!sdi->driver->config_set)
 		ret = SR_ERR_ARG;
-	else if (check_key(sdi->driver, sdi, cg, key, SR_CONF_SET, data) != SR_OK)
+	else if (sdi->status != SR_ST_ACTIVE) {
+		sr_err("%s: Device instance not active, can't set config.",
+			sdi->driver->name);
+		ret = SR_ERR_DEV_CLOSED;
+	} else if (check_key(sdi->driver, sdi, cg, key, SR_CONF_SET, data) != SR_OK)
 		return SR_ERR_ARG;
 	else if ((ret = sr_variant_type_check(key, data)) == SR_OK) {
 		log_key(sdi, cg, key, SR_CONF_SET, data);
@@ -796,7 +839,11 @@ SR_API int sr_config_commit(const struct sr_dev_inst *sdi)
 		ret = SR_ERR;
 	else if (!sdi->driver->config_commit)
 		ret = SR_OK;
-	else
+	else if (sdi->status != SR_ST_ACTIVE) {
+		sr_err("%s: Device instance not active, can't commit config.",
+			sdi->driver->name);
+		ret = SR_ERR_DEV_CLOSED;
+	} else
 		ret = sdi->driver->config_commit(sdi);
 
 	return ret;