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/* Copyright 2020 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 "mock/tcpci_i2c_mock.h"
#include "task.h"
#include "tcpm/tcpci.h"
#include "test_util.h"
#include "timer.h"
#include "usb_tcpmv2_compliance.h"
#include "usb_tc_sm.h"
/*****************************************************************************
* TD.PD.LL.E3. Soft Reset Usage
*
* Description:
* Check that the UUT will issue a Soft Reset after unsuccessful retries,
* and that the link can be successfully recovered after that.
*/
static int td_pd_ll_e3(enum pd_data_role data_role)
{
int retries;
partner_set_pd_rev(PD_REV20);
TEST_EQ(tcpci_startup(), EC_SUCCESS, "%d");
/*
* a) Run PROC.PD.E1 Bring-up according to the UUT role.
*/
TEST_EQ(proc_pd_e1(data_role, INITIAL_AND_ALREADY_ATTACHED),
EC_SUCCESS, "%d");
/*
* Make sure we are idle. Reject everything that is pending
*/
TEST_EQ(handle_attach_expected_msgs(data_role), EC_SUCCESS, "%d");
/*
* b) Send a Get_Sink_Cap message to the UUT, wait for a reply
* and do not send GoodCrc for nRetryCount + 1 times
* (nRetryCount equals 3 since PD 2.1).
*/
partner_send_msg(TCPCI_MSG_SOP,
PD_CTRL_GET_SINK_CAP,
0, 0, NULL);
retries = (partner_get_pd_rev() == PD_REV30) ? 2 : 3;
TEST_EQ(verify_tcpci_tx_retry_count(TCPCI_MSG_SOP, 0, PD_DATA_SINK_CAP,
retries),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_FAILED);
/*
* c) Check that the UUT issues a Soft Reset.
*/
TEST_EQ(verify_tcpci_transmit(TCPCI_MSG_SOP, PD_CTRL_SOFT_RESET, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
/*
* d) Handle correctly the Soft Reset procedure.
*/
partner_send_msg(TCPCI_MSG_SOP, PD_CTRL_ACCEPT, 0, 0, NULL);
/*
* e) Continue the bring-up procedure and check that the link is
* successfully established.
*/
TEST_EQ(proc_pd_e1(data_role, ALREADY_ATTACHED), EC_SUCCESS, "%d");
return EC_SUCCESS;
}
int test_td_pd_ll_e3_dfp(void)
{
return td_pd_ll_e3(PD_ROLE_DFP);
}
int test_td_pd_ll_e3_ufp(void)
{
return td_pd_ll_e3(PD_ROLE_UFP);
}
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