brymen-bm86x: Use software limit helpers

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

src/hardware/brymen-bm86x/api.c

@@ -85,6 +85,8 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
 		sdi->inst_type = SR_INST_USB;
 		sdi->conn = usb;
 
+		sr_sw_limits_init(&devc->sw_limits);
+
 		drvc->instances = g_slist_append(drvc->instances, sdi);
 		devices = g_slist_append(devices, sdi);
 	}
@@ -174,18 +176,7 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 
 	(void)cg;
 
-	switch (key) {
+	return sr_sw_limits_config_get(&devc->sw_limits, key, data);
-	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;
-	default:
-		return SR_ERR_NA;
-	}
-
-	return SR_OK;
 }
 
 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
@@ -203,18 +194,7 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 		return SR_ERR_BUG;
 	}
 
-	switch (key) {
+	return sr_sw_limits_config_set(&devc->sw_limits, key, data);
-	case SR_CONF_LIMIT_SAMPLES:
-		devc->limit_samples = g_variant_get_uint64(data);
-		break;
-	case SR_CONF_LIMIT_MSEC:
-		devc->limit_msec = g_variant_get_uint64(data);
-		break;
-	default:
-		return SR_ERR_NA;
-	}
-
-	return SR_OK;
 }
 
 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
@@ -247,7 +227,8 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 		return SR_ERR_DEV_CLOSED;
 
 	devc = sdi->priv;
-	devc->start_time = g_get_monotonic_time();
+
+	sr_sw_limits_acquisition_start(&devc->sw_limits);
 
 	std_session_send_df_header(sdi, LOG_PREFIX);
 

src/hardware/brymen-bm86x/protocol.c

@@ -231,7 +231,7 @@ static void brymen_bm86x_handle_packet(const struct sr_dev_inst *sdi,
 	}
 
 	if (analog[0].mq != -1 || analog[1].mq != -1)
-		devc->num_samples++;
+		sr_sw_limits_update_samples_read(&devc->sw_limits, 1);
 }
 
 static int brymen_bm86x_send_command(const struct sr_dev_inst *sdi)
@@ -308,7 +308,6 @@ SR_PRIV int brymen_bm86x_receive_data(int fd, int revents, void *cb_data)
 {
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
-	int64_t time;
 
 	(void)fd;
 	(void)revents;
@@ -328,20 +327,8 @@ SR_PRIV int brymen_bm86x_receive_data(int fd, int revents, void *cb_data)
 	if (brymen_bm86x_read_interrupt(sdi))
 		return FALSE;
 
-	if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
+	if (sr_sw_limits_check(&devc->sw_limits))
-		sr_info("Requested number of samples reached, stopping.");
 		sdi->driver->dev_acquisition_stop(sdi);
-		return TRUE;
-	}
-
-	if (devc->limit_msec) {
-		time = (g_get_monotonic_time() - devc->start_time) / 1000;
-		if (time > (int64_t)devc->limit_msec) {
-			sr_info("Requested time limit reached, stopping.");
-			sdi->driver->dev_acquisition_stop(sdi);
-			return TRUE;
-		}
-	}
 
 	return TRUE;
 }

src/hardware/brymen-bm86x/protocol.h

@@ -30,13 +30,10 @@
 /** Private, per-device-instance driver context. */
 struct dev_context {
 	/* Acquisition settings */
-	uint64_t limit_samples;    /**< The sampling limit (in number of samples).*/
+	struct sr_sw_limits sw_limits;
-	uint64_t limit_msec;       /**< The time limit (in milliseconds). */
 
 	/* Operational state */
 	int detached_kernel_driver;/**< Whether kernel driver was detached or not */
-	uint64_t num_samples;      /**< The number of already received samples. */
-	int64_t start_time;        /**< The time at which sampling started. */
 
 	/* Temporary state across callbacks */
 	int interrupt_pending;