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-rw-r--r--tmk_core/common/avr/_wait.h29
-rw-r--r--tmk_core/common/avr/suspend.c4
2 files changed, 33 insertions, 0 deletions
diff --git a/tmk_core/common/avr/_wait.h b/tmk_core/common/avr/_wait.h
new file mode 100644
index 0000000000..56eb316faf
--- /dev/null
+++ b/tmk_core/common/avr/_wait.h
@@ -0,0 +1,29 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <util/delay.h>
+
+#define wait_ms(ms) _delay_ms(ms)
+#define wait_us(us) _delay_us(us)
+
+/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
+ * But here's more margin to make it two clocks. */
+#ifndef GPIO_INPUT_PIN_DELAY
+# define GPIO_INPUT_PIN_DELAY 2
+#endif
+
+#define waitInputPinDelay() __builtin_avr_delay_cycles(GPIO_INPUT_PIN_DELAY)
diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 47a82a2eec..d52c8ac410 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -28,6 +28,10 @@
# include "rgblight.h"
#endif
+#ifdef RGB_MATRIX_ENABLE
+# include "rgb_matrix.h"
+#endif
+
/** \brief Suspend idle
*
* FIXME: needs doc