scpi-pps: Use software sample and time limits.

src/hardware/scpi-pps/api.c

@@ -100,6 +100,7 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi,
 
 	devc = g_malloc0(sizeof(struct dev_context));
 	devc->device = device;
+	sr_sw_limits_init(&devc->limits);
 	sdi->priv = devc;
 
 	if (device->num_channels) {
@@ -400,6 +401,8 @@ static int config_get(uint32_t key, GVariant **data,
 	case SR_CONF_REGULATION:
 		gvtype = G_VARIANT_TYPE_STRING;
 		cmd = SCPI_CMD_GET_OUTPUT_REGULATION;
+	default:
+		return sr_sw_limits_config_get(&devc->limits, key, data);
 	}
 	if (!gvtype)
 		return SR_ERR_NA;
@@ -533,7 +536,7 @@ static int config_set(uint32_t key, GVariant *data,
 					SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE);
 		break;
 	default:
-		ret = SR_ERR_NA;
+		ret = sr_sw_limits_config_set(&devc->limits, key, data);
 	}
 
 	g_free(channel_group_name);
@@ -640,6 +643,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 			scpi_pps_receive_data, (void *)sdi)) != SR_OK)
 		return ret;
 	std_session_send_df_header(sdi);
+	sr_sw_limits_acquisition_start(&devc->limits);
 
 	return SR_OK;
 }

src/hardware/scpi-pps/profiles.c

@@ -33,6 +33,8 @@
 /* Agilent/Keysight N5700A series */
 static const uint32_t agilent_n5700a_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t agilent_n5700a_devopts_cg[] = {
@@ -87,6 +89,8 @@ static const struct scpi_command agilent_n5700a_cmd[] = {
 /* Chroma 61600 series AC source */
 static const uint32_t chroma_61604_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t chroma_61604_devopts_cg[] = {
@@ -133,6 +137,8 @@ static const struct scpi_command chroma_61604_cmd[] = {
 /* Chroma 62000 series DC source */
 static const uint32_t chroma_62000_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t chroma_62000_devopts_cg[] = {
@@ -224,6 +230,8 @@ static int chroma_62000p_probe_channels(struct sr_dev_inst *sdi,
 /* Rigol DP700 series */
 static const uint32_t rigol_dp700_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t rigol_dp700_devopts_cg[] = {
@@ -291,6 +299,8 @@ static const struct scpi_command rigol_dp700_cmd[] = {
 static const uint32_t rigol_dp800_devopts[] = {
 	SR_CONF_CONTINUOUS,
 	SR_CONF_OVER_TEMPERATURE_PROTECTION | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t rigol_dp800_devopts_cg[] = {
@@ -375,6 +385,8 @@ static const struct scpi_command rigol_dp800_cmd[] = {
 /* HP 663xx series */
 static const uint32_t hp_6630a_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t hp_6630a_devopts_cg[] = {
@@ -389,6 +401,8 @@ static const uint32_t hp_6630a_devopts_cg[] = {
 
 static const uint32_t hp_6630b_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t hp_6630b_devopts_cg[] = {
@@ -465,6 +479,8 @@ static const struct scpi_command hp_6630b_cmd[] = {
 /* Philips/Fluke PM2800 series */
 static const uint32_t philips_pm2800_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t philips_pm2800_devopts_cg[] = {
@@ -613,6 +629,8 @@ static const struct scpi_command philips_pm2800_cmd[] = {
 
 static const uint32_t rs_hmc8043_devopts[] = {
 	SR_CONF_CONTINUOUS,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t rs_hmc8043_devopts_cg[] = {

src/hardware/scpi-pps/protocol.c

@@ -32,7 +32,7 @@ SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data)
 	struct sr_analog_encoding encoding;
 	struct sr_analog_meaning meaning;
 	struct sr_analog_spec spec;
-	const struct sr_dev_inst *sdi;
+	struct sr_dev_inst *sdi;
 	int channel_group_cmd;
 	char *channel_group_name;
 	struct pps_channel *pch;
@@ -116,5 +116,13 @@ SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data)
 			sr_next_enabled_channel(sdi, devc->cur_acquisition_channel);
 	}
 
+	if (devc->cur_acquisition_channel == sr_next_enabled_channel(sdi, NULL))
+		/* First enabled channel, so each channel has been sampled */
+		sr_sw_limits_update_samples_read(&devc->limits, 1);
+
+	/* Stop if limits have been hit. */
+	if (sr_sw_limits_check(&devc->limits))
+		sr_dev_acquisition_stop(sdi);
+
 	return TRUE;
 }

src/hardware/scpi-pps/protocol.h

@@ -147,6 +147,7 @@ struct dev_context {
 	struct channel_group_spec *channel_groups;
 
 	struct sr_channel *cur_acquisition_channel;
+	struct sr_sw_limits limits;
 };
 
 SR_PRIV extern unsigned int num_pps_profiles;