Initial migration of suspend callbacks (#16067)

* Initial migration of suspend logic

* Add header

1 files changed, 47 insertions, 0 deletions

diff --git a/platforms/suspend.c b/platforms/suspend.c
new file mode 100644
index 0000000000..cd773764fa
--- /dev/null
+++ b/platforms/suspend.c
@@ -0,0 +1,47 @@
+// Copyright 2022 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "suspend.h"
+#include "matrix.h"
+
+// TODO: Move to more correct location
+__attribute__((weak)) void matrix_power_up(void) {}
+__attribute__((weak)) void matrix_power_down(void) {}
+
+/** \brief Run user level Power down
+ *
+ * FIXME: needs doc
+ */
+__attribute__((weak)) void suspend_power_down_user(void) {}
+
+/** \brief Run keyboard level Power down
+ *
+ * FIXME: needs doc
+ */
+__attribute__((weak)) void suspend_power_down_kb(void) { suspend_power_down_user(); }
+
+/** \brief run user level code immediately after wakeup
+ *
+ * FIXME: needs doc
+ */
+__attribute__((weak)) void suspend_wakeup_init_user(void) {}
+
+/** \brief run keyboard level code immediately after wakeup
+ *
+ * FIXME: needs doc
+ */
+__attribute__((weak)) void suspend_wakeup_init_kb(void) { suspend_wakeup_init_user(); }
+
+/** \brief suspend wakeup condition
+ *
+ * FIXME: needs doc
+ */
+bool suspend_wakeup_condition(void) {
+    matrix_power_up();
+    matrix_scan();
+    matrix_power_down();
+    for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
+        if (matrix_get_row(r)) return true;
+    }
+    return false;
+}