Keep track of encoder activity (#11595)

* Keep track of encoder activity, provide API for either matrix/encoder.

* Fixup build when no RGBLIGHT or Backlight enabled.

2 files changed, 27 insertions, 3 deletions

diff --git a/tmk_core/common/keyboard.c b/tmk_core/common/keyboard.c
index aea09169fb..0ca4546128 100644
--- a/tmk_core/common/keyboard.c
+++ b/tmk_core/common/keyboard.c
@@ -97,9 +97,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    include "dip_switch.h"
 #endif
 
+static uint32_t last_input_modification_time = 0;
+uint32_t        last_input_activity_time(void) { return last_input_modification_time; }
+uint32_t        last_input_activity_elapsed(void) { return timer_elapsed32(last_input_modification_time); }
+
 static uint32_t last_matrix_modification_time = 0;
 uint32_t        last_matrix_activity_time(void) { return last_matrix_modification_time; }
 uint32_t        last_matrix_activity_elapsed(void) { return timer_elapsed32(last_matrix_modification_time); }
+void            last_matrix_activity_trigger(void) { last_matrix_modification_time = last_input_modification_time = timer_read32(); }
+
+static uint32_t last_encoder_modification_time = 0;
+uint32_t        last_encoder_activity_time(void) { return last_encoder_modification_time; }
+uint32_t        last_encoder_activity_elapsed(void) { return timer_elapsed32(last_encoder_modification_time); }
+void            last_encoder_activity_trigger(void) { last_encoder_modification_time = last_input_modification_time = timer_read32(); }
 
 // Only enable this if console is enabled to print to
 #if defined(DEBUG_MATRIX_SCAN_RATE) && defined(CONSOLE_ENABLE)
@@ -338,12 +348,15 @@ void keyboard_task(void) {
 #ifdef QMK_KEYS_PER_SCAN
     uint8_t keys_processed = 0;
 #endif
+#ifdef ENCODER_ENABLE
+    bool encoders_changed = false;
+#endif
 
     housekeeping_task_kb();
     housekeeping_task_user();
 
     uint8_t matrix_changed = matrix_scan();
-    if (matrix_changed) last_matrix_modification_time = timer_read32();
+    if (matrix_changed) last_matrix_activity_trigger();
 
     if (should_process_keypress()) {
         for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
@@ -399,7 +412,8 @@ MATRIX_LOOP_END:
 #endif
 
 #ifdef ENCODER_ENABLE
-    encoder_read();
+    encoders_changed = encoder_read();
+    if (encoders_changed) last_encoder_activity_trigger();
 #endif
 
 #ifdef QWIIC_ENABLE
@@ -409,8 +423,12 @@ MATRIX_LOOP_END:
 #ifdef OLED_DRIVER_ENABLE
     oled_task();
 #    ifndef OLED_DISABLE_TIMEOUT
-    // Wake up oled if user is using those fabulous keys!
+    // Wake up oled if user is using those fabulous keys or spinning those encoders!
+#        ifdef ENCODER_ENABLE
+    if (matrix_changed || encoders_changed) oled_on();
+#        else
     if (matrix_changed) oled_on();
+#        endif
 #    endif
 #endif
 
diff --git a/tmk_core/common/keyboard.h b/tmk_core/common/keyboard.h
index cc5b2e5e42..88b3896e9e 100644
--- a/tmk_core/common/keyboard.h
+++ b/tmk_core/common/keyboard.h
@@ -73,9 +73,15 @@ void keyboard_post_init_user(void);
 void housekeeping_task_kb(void);
 void housekeeping_task_user(void);
 
+uint32_t last_input_activity_time(void);     // Timestamp of the last matrix or encoder activity
+uint32_t last_input_activity_elapsed(void);  // Number of milliseconds since the last matrix or encoder activity
+
 uint32_t last_matrix_activity_time(void);     // Timestamp of the last matrix activity
 uint32_t last_matrix_activity_elapsed(void);  // Number of milliseconds since the last matrix activity
 
+uint32_t last_encoder_activity_time(void);     // Timestamp of the last encoder activity
+uint32_t last_encoder_activity_elapsed(void);  // Number of milliseconds since the last encoder activity
+
 #ifdef __cplusplus
 }
 #endif