blob: 6a06d4014ffc3872915659cbb22d49f79379fd1a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* Copyright 2021 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.
*/
#include "console.h"
#include "ec_commands.h"
#include "usb_pe_sm.h"
#include "usb_tc_sm.h"
/*
* TODO(b:159715784): Implement a more robust solution
* to managing PD Policies.
*/
/*
* Default Port Discovery DR Swap Policy.
*
* 1) If dr_swap_to_dfp_flag == true and port data role is UFP,
* transition to pe_drs_send_swap
*/
__overridable bool port_discovery_dr_swap_policy(int port,
enum pd_data_role dr, bool dr_swap_flag)
{
if (dr_swap_flag && dr == PD_ROLE_UFP)
return true;
/* Do not perform a DR swap */
return false;
}
/*
* Default Port Discovery VCONN Swap Policy.
*
* 1) If vconn_swap_to_on_flag == true, and vconn is currently off,
* 2) Sourcing VCONN is possible
* then transition to pe_vcs_send_swap
*/
__overridable bool port_discovery_vconn_swap_policy(int port,
bool vconn_swap_flag)
{
if (IS_ENABLED(CONFIG_USBC_VCONN) && vconn_swap_flag &&
!tc_is_vconn_src(port) && tc_check_vconn_swap(port))
return true;
/* Do not perform a VCONN swap */
return false;
}
|
