appa-55ii: Use software limit helpers

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

src/hardware/appa-55ii/api.c

@@ -130,11 +130,8 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 
 	switch (key) {
 	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);
+		return sr_sw_limits_config_get(&devc->limits, key, data);
-		break;
 	case SR_CONF_DATA_SOURCE:
 		*data = g_variant_new_string(data_sources[devc->data_source]);
 		break;
@@ -164,11 +161,7 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
 
 	switch (key) {
 	case SR_CONF_LIMIT_SAMPLES:
-		devc->limit_samples = g_variant_get_uint64(data);
+		return sr_sw_limits_config_set(&devc->limits, key, data);
-		break;
-	case SR_CONF_LIMIT_MSEC:
-		devc->limit_msec = g_variant_get_uint64(data);
-		break;
 	case SR_CONF_DATA_SOURCE: {
 		tmp_str = g_variant_get_string(data, NULL);
 		for (i = 0; i < ARRAY_SIZE(data_sources); i++)
@@ -226,13 +219,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 
 	devc = sdi->priv;
 
-	/*
+	sr_sw_limits_acquisition_start(&devc->limits);
-	 * Reset the number of samples to take. If we've already collected our
-	 * quota, but we start a new session, and don't reset this, we'll just
-	 * quit without acquiring any new samples.
-	 */
-	devc->num_samples = 0;
-	devc->start_time = g_get_monotonic_time();
 
 	std_session_send_df_header(sdi, LOG_PREFIX);
 

src/hardware/appa-55ii/protocol.c

@@ -123,7 +123,7 @@ static void appa_55ii_live_data(struct sr_dev_inst *sdi, const uint8_t *buf)
 	sr_session_send(sdi, &packet);
 	g_slist_free(analog.channels);
 
-	devc->num_samples++;
+	sr_sw_limits_update_samples_read(&devc->limits, 1);
 }
 
 static void appa_55ii_log_metadata(struct sr_dev_inst *sdi, const uint8_t *buf)
@@ -175,7 +175,7 @@ static void appa_55ii_log_data_parse(struct sr_dev_inst *sdi)
 		sr_session_send(sdi, &packet);
 		g_slist_free(analog.channels);
 
-		devc->num_samples++;
+		sr_sw_limits_update_samples_read(&devc->limits, 1);
 		devc->log_buf_len -= 20;
 		offset += 20;
 		devc->num_log_records--;
@@ -266,7 +266,6 @@ SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data)
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
 	struct sr_serial_dev_inst *serial;
-	int64_t time;
 	const uint8_t *ptr, *next_ptr, *end_ptr;
 	int len;
 
@@ -301,20 +300,10 @@ SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data)
 		return FALSE;
 	}
 
-	if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
+	if (sr_sw_limits_check(&devc->limits)) {
-		sr_info("Requested number of samples reached.");
 		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.");
-			sdi->driver->dev_acquisition_stop(sdi);
-			return TRUE;
-		}
-	}
-
 	return TRUE;
 }

src/hardware/appa-55ii/protocol.h

@@ -39,14 +39,9 @@ enum {
 /** 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 limits;
-	uint64_t limit_msec;      /**< The time limit (in milliseconds). */
 	gboolean data_source;     /**< Whether to read live samples or memory */
 
-	/* Operational state */
-	uint64_t num_samples;     /**< The number of already received samples. */
-	int64_t start_time;       /**< The time at which sampling started. */
-
 	/* Temporary state across callbacks */
 	uint8_t buf[APPA_55II_BUF_SIZE];
 	unsigned int buf_len;