1 files changed, 54 insertions, 0 deletions
diff --git a/zephyr/subsys/ap_pwrseq/include/ap_power_override_functions.h b/zephyr/subsys/ap_pwrseq/include/ap_power_override_functions.h
new file mode 100644
index 0000000000..3bf453ffba
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+++ b/zephyr/subsys/ap_pwrseq/include/ap_power_override_functions.h
@@ -0,0 +1,54 @@
+/* Copyright 2022 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/**
+ * @file
+ * @brief Declare functions that are supplied externally.
+ * The functions are all prepended with board_ap_power_ to indicate
+ * they have external implementations.
+ *
+ * TODO(b/223923728): Longer term, a framework should be put in place to
+ * allow extensibility for selected functions.
+ *
+ * The external functions may need to access
+ * devicetree properties for values such
+ * as timeouts etc.
+ */
+
+#ifndef __AP_PWRSEQ_AP_POWER_BOARD_FUNCTIONS_H__
+#define __AP_PWRSEQ_AP_POWER_BOARD_FUNCTIONS_H__
+
+#include <devicetree.h>
+
+/**
+ * @brief Force AP shutdown
+ *
+ * Immediately shut down the AP.
+ */
+void board_ap_power_force_shutdown(void);
+
+/**
+ * @brief Called to transition from G3 to S5
+ *
+ * Action to start transition from G3 to S5.
+ * Usually involves enabling the main power rails.
+ */
+void board_ap_power_action_g3_s5(void);
+
+/**
+ * @brief Assert PCH power OK signal to AP
+ *
+ * @return 0 Success
+ * @return -1 Timeout or error
+ */
+int board_ap_power_assert_pch_power_ok(void);
+
+/**
+ * @brief macro to access configuration properties from DTS
+ */
+#define AP_PWRSEQ_DT_VALUE(p)					\
+	DT_PROP(DT_COMPAT_GET_ANY_STATUS_OKAY(intel_ap_pwrseq), p)	\
+
+#endif /* __AP_PWRSEQ_AP_POWER_BOARD_FUNCTIONS_H__ */