dmm: use kernel buffers when using dmm

Signed-off-by: Adrian Suciu <adrian.suciu@analog.com>
tktf50 · Mar 11, 2022 · 1e862f6 · 1e862f6
1 parent 3ca878e
commit 1e862f6
Show file tree

Hide file tree

Showing 3 changed files with 11 additions and 0 deletions.
diff --git a/src/dmm.cpp b/src/dmm.cpp
@@ -517,6 +517,7 @@ void DMM::toggleTimer(bool start)
 {
 	enableDataLogging(start);
 	if (start) {
+		manager->set_kernel_buffer_count(4);
 		writeAllSettingsToHardware();
 		manager->start(id_ch1);
 		manager->start(id_ch2);
@@ -529,6 +530,7 @@ void DMM::toggleTimer(bool start)
 
 		manager->stop(id_ch1);
 		manager->stop(id_ch2);
+		manager->set_kernel_buffer_count();
 	}
 
 	setDynamicProperty(ui->run_button, "running", start);

diff --git a/src/iio_manager.cpp b/src/iio_manager.cpp
@@ -365,6 +365,14 @@ void iio_manager::set_data_rate(double rate) {
 	iio_block->set_data_rate(rate);
 }
 
+void iio_manager::set_kernel_buffer_count(int kb) {
+	if(kb) {
+		m_analogin->setKernelBuffersCount(kb);
+	} else {
+		m_analogin->setKernelBuffersCount(KERNEL_BUFFERS_DEFAULT);
+	}
+}
+
 void iio_manager::enableMixedSignal(m2k::mixed_signal_source::sptr mixed_source)
 {
 	for (int i = 0; i < nb_channels; ++i) {

diff --git a/src/iio_manager.hpp b/src/iio_manager.hpp
@@ -106,6 +106,7 @@ namespace adiscope {
 		void set_buffer_size(port_id id, unsigned long size);
 		void set_filter_parameters(int channel, int index, bool enable, float TC, float gain, float sample_rate );
 		void set_data_rate(double rate);
+		void set_kernel_buffer_count(int kb = 0);
 
 		/* VERY ugly hack. The reconfiguration that happens after
 		 * locking/unlocking the flowgraph is sort of broken; the tags