1 files changed, 0 insertions, 113 deletions
diff --git a/include/usb_sm.h b/include/usb_sm.h
deleted file mode 100644
index 2b5939bc04..0000000000
--- a/include/usb_sm.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Copyright 2019 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.
- */
-
-/* USB State Machine Framework */
-
-#ifndef __CROS_EC_USB_SM_H
-#define __CROS_EC_USB_SM_H
-
-#include "compiler.h"	/* for typeof() on Zephyr */
-
-/* Function pointer that implements a portion of a usb state */
-typedef void (*state_execution)(const int port);
-
-/*
- * General usb state that can be used in multiple state machines.
- *
- * entry - Optional method that will be run when this state is entered
- * run   - Optional method that will be run repeatedly during state machine loop
- * exit  - Optional method that will be run when this state exists
- * parent- Optional parent usb_state that contains common entry/run/exit
- *	implementation among various child usb_states.
- *	entry: Parent function executes BEFORE child function.
- *	run: Parent function executes AFTER child function.
- *	exit: Parent function executes AFTER child function.
- *
- *	Note: When transitioning between two child states with a shared parent,
- *	that parent's exit and entry functions do not execute.
- */
-struct usb_state {
-	const state_execution entry;
-	const state_execution run;
-	const state_execution exit;
-	const struct usb_state *parent;
-};
-
-typedef const struct usb_state *usb_state_ptr;
-
-/* Defines the current context of the usb statemachine. */
-struct sm_ctx {
-	usb_state_ptr current;
-	usb_state_ptr previous;
-	/* We use intptr_t type to accommodate host tests ptr size variance */
-	intptr_t internal[2];
-};
-
-/* Local state machine states */
-enum sm_local_state {
-	SM_INIT = 0, /* Ensure static variables initialize to SM_INIT */
-	SM_RUN,
-	SM_PAUSED,
-};
-
-/*
- * A state machine can use these debug levels to regulate the amount of debug
- * information printed on the EC console
- *
- * The states currently defined are
- *   Level 0: disabled
- *   Level 1: state names
- *
- * Note that higher log level causes timing changes and thus may affect
- * performance.
- */
-enum debug_level {
-	DEBUG_DISABLE,
-	DEBUG_LEVEL_1,
-	DEBUG_LEVEL_2,
-	DEBUG_LEVEL_3,
-	DEBUG_LEVEL_MAX = DEBUG_LEVEL_3
-};
-
-/**
- * Changes a state machines state. This handles exiting the previous state and
- * entering the target state. A common parent state will not exited nor be
- * re-entered.
- *
- * @param port      USB-C port number
- * @param ctx       State machine context
- * @param new_state State to transition to (NULL is valid and exits all states)
- */
-void set_state(int port, struct sm_ctx *ctx, usb_state_ptr new_state);
-
-/**
- * Runs one iteration of a state machine (including any parent states)
- *
- * @param port USB-C port number
- * @param ctx  State machine context
- */
-void run_state(int port, struct sm_ctx *ctx);
-
-#ifdef TEST_BUILD
-/*
- * Struct for test builds that allow unit tests to easily iterate through
- * state machines
- */
-struct test_sm_data {
-	/* Base pointer of the state machine array */
-	const usb_state_ptr base;
-	/* Size fo the state machine array above */
-	const int size;
-	/* The array of names for states, can be NULL */
-	const char * const * const names;
-	/* The size of the above names array */
-	const int names_size;
-};
-#endif
-
-/* Creates a state machine state that will never link. Useful with IS_ENABLED */
-#define GEN_NOT_SUPPORTED(state) extern typeof(state) state ## _NOT_SUPPORTED
-
-#endif /* __CROS_EC_USB_SM_H */