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-rw-r--r--tmk_core/common/keyboard.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tmk_core/common/keyboard.c b/tmk_core/common/keyboard.c
index f4d2cd738..9806b5015 100644
--- a/tmk_core/common/keyboard.c
+++ b/tmk_core/common/keyboard.c
@@ -82,6 +82,26 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
# include "velocikey.h"
#endif
+// Only enable this if console is enabled to print to
+#if defined(DEBUG_MATRIX_SCAN_RATE) && defined(CONSOLE_ENABLE)
+static uint32_t matrix_timer = 0;
+static uint32_t matrix_scan_count = 0;
+
+void matrix_scan_perf_task(void) {
+ matrix_scan_count++;
+
+ uint32_t timer_now = timer_read32();
+ if (TIMER_DIFF_32(timer_now, matrix_timer) > 1000) {
+ dprintf("matrix scan frequency: %d\n", matrix_scan_count);
+
+ matrix_timer = timer_now;
+ matrix_scan_count = 0;
+ }
+}
+#else
+# define matrix_scan_perf_task()
+#endif
+
#ifdef MATRIX_HAS_GHOST
extern const uint16_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
static matrix_row_t get_real_keys(uint8_t row, matrix_row_t rowdata) {
@@ -301,6 +321,10 @@ void keyboard_task(void) {
MATRIX_LOOP_END:
+#ifdef DEBUG_MATRIX_SCAN_RATE
+ matrix_scan_perf_task();
+#endif
+
#ifdef QWIIC_ENABLE
qwiic_task();
#endif