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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __CROS_EC_USB_PE_PRIVATE_H
#define __CROS_EC_USB_PE_PRIVATE_H
/** Internal header file for usb_pe.
*
* EC code should not normally include this. These are exposed so they can be
* used by unit test code.
*/
enum {
/* At least one successful PD communication packet received from port
partner */
PE_FLAGS_PD_CONNECTION_FN = 0,
/* Accept message received from port partner */
PE_FLAGS_ACCEPT_FN,
/* Power Supply Ready message received from port partner */
PE_FLAGS_PS_READY_FN,
/* Protocol Error was determined based on error recovery current state
*/
PE_FLAGS_PROTOCOL_ERROR_FN,
/* Set if we are in Modal Operation */
PE_FLAGS_MODAL_OPERATION_FN,
/* A message we requested to be sent has been transmitted */
PE_FLAGS_TX_COMPLETE_FN,
/* A message sent by a port partner has been received */
PE_FLAGS_MSG_RECEIVED_FN,
/* A hard reset has been requested but has not been sent, not currently
used */
PE_FLAGS_HARD_RESET_PENDING_FN,
/* Port partner sent a Wait message. Wait before we resend our message
*/
PE_FLAGS_WAIT_FN,
/* An explicit contract is in place with our port partner */
PE_FLAGS_EXPLICIT_CONTRACT_FN,
/* Waiting for Sink Capabailities timed out. Used for retry error
handling */
PE_FLAGS_SNK_WAIT_CAP_TIMEOUT_FN,
/* Power Supply voltage/current transition timed out */
PE_FLAGS_PS_TRANSITION_TIMEOUT_FN,
/* Flag to note current Atomic Message Sequence is interruptible */
PE_FLAGS_INTERRUPTIBLE_AMS_FN,
/* Flag to note Power Supply reset has completed */
PE_FLAGS_PS_RESET_COMPLETE_FN,
/* VCONN swap operation has completed */
PE_FLAGS_VCONN_SWAP_COMPLETE_FN,
/* Flag to note no more setup VDMs (discovery, etc.) should be sent */
PE_FLAGS_VDM_SETUP_DONE_FN,
/* Flag to note PR Swap just completed for Startup entry */
PE_FLAGS_PR_SWAP_COMPLETE_FN,
/* Flag to note Port Discovery port partner replied with BUSY */
PE_FLAGS_VDM_REQUEST_BUSY_FN,
/* Flag to note Port Discovery port partner replied with NAK */
PE_FLAGS_VDM_REQUEST_NAKED_FN,
/* Flag to note FRS/PRS context in shared state machine path */
PE_FLAGS_FAST_ROLE_SWAP_PATH_FN,
/* Flag to note if FRS listening is enabled */
PE_FLAGS_FAST_ROLE_SWAP_ENABLED_FN,
/* Flag to note TCPC passed on FRS signal from port partner */
PE_FLAGS_FAST_ROLE_SWAP_SIGNALED_FN,
/* TODO: POLICY decision: Triggers a DR SWAP attempt from UFP to DFP */
PE_FLAGS_DR_SWAP_TO_DFP_FN,
/*
* TODO: POLICY decision
* Flag to trigger a message resend after receiving a WAIT from port
* partner
*/
PE_FLAGS_WAITING_PR_SWAP_FN,
/* FLAG is set when an AMS is initiated locally. ie. AP requested a
PR_SWAP */
PE_FLAGS_LOCALLY_INITIATED_AMS_FN,
/* Flag to note the first message sent in PE_SRC_READY and PE_SNK_READY
*/
PE_FLAGS_FIRST_MSG_FN,
/* Flag to continue a VDM request if it was interrupted */
PE_FLAGS_VDM_REQUEST_CONTINUE_FN,
/* TODO: POLICY decision: Triggers a Vconn SWAP attempt to on */
PE_FLAGS_VCONN_SWAP_TO_ON_FN,
/* FLAG to track that VDM request to port partner timed out */
PE_FLAGS_VDM_REQUEST_TIMEOUT_FN,
/* FLAG to note message was discarded due to incoming message */
PE_FLAGS_MSG_DISCARDED_FN,
/* FLAG to note that hard reset can't be performed due to battery low */
PE_FLAGS_SNK_WAITING_BATT_FN,
/* FLAG to note that a data reset is complete */
PE_FLAGS_DATA_RESET_COMPLETE_FN,
/* Waiting for SRC to SNK settle time */
PE_FLAGS_SRC_SNK_SETTLE_FN,
/* Last element */
PE_FLAGS_COUNT
};
#ifdef TEST_BUILD
void pe_set_fn(int port, int fn);
void pe_clr_fn(int port, int fn);
int pe_chk_fn(int port, int fn);
void pe_clr_dpm_requests(int port);
#endif /* TEST_BUILD */
#endif /* __CROS_EC_USB_PE_PRIVATE_H */
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