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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 "tcpci.h"
#include "test_util.h"
#include "timer.h"
#include "usb_tcpmv2_compliance.h"
/*****************************************************************************
* TD.PD.LL.E4. Hard 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.
* Check that the UUT will issue a Hard Reset if the Soft Reset fails,
* and that the link can be successfully recovered after that.
*/
static int td_pd_ll_e4(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), EC_SUCCESS, "%d");
/*
* Make sure we are idle. Reject everything that is pending
*/
if (data_role == PD_ROLE_DFP) {
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP_PRIME, 0,
PD_DATA_VENDOR_DEF),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP_PRIME, PD_CTRL_NOT_SUPPORTED, 0, 0,
NULL);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, 0,
PD_DATA_VENDOR_DEF),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_CTRL_NOT_SUPPORTED, 0, 0, NULL);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP,
PD_CTRL_GET_SOURCE_CAP, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_DATA_SOURCE_CAP, 1, 0, &pdo);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP,
PD_CTRL_GET_SINK_CAP, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_DATA_SINK_CAP, 1, 0, &pdo);
} else if (data_role == PD_ROLE_UFP) {
int vcs;
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, PD_CTRL_DR_SWAP, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_CTRL_REJECT, 0, 0, NULL);
for (vcs = 0; vcs < 4; vcs++) {
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP,
PD_CTRL_VCONN_SWAP, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_CTRL_REJECT, 0, 0,
NULL);
}
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP,
PD_CTRL_GET_SINK_CAP, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_DATA_SINK_CAP, 1, 0, &pdo);
}
/* Should be idle now. */
task_wait_event(10 * SECOND);
/*
* 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(PD_MSG_SOP,
PD_CTRL_GET_SINK_CAP,
0, 0, NULL);
retries = 3;
TEST_EQ(verify_tcpci_tx_retry_count(TCPC_TX_SOP, 0, PD_DATA_SINK_CAP,
retries),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_FAILED);
/*
* c) Wait the nRetryCount + 1 (four) Soft Resets from the UUT and do
* not reply GoodCrc.
*/
retries = 3;
TEST_EQ(verify_tcpci_tx_retry_count(TCPC_TX_SOP, PD_CTRL_SOFT_RESET, 0,
retries),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_FAILED);
task_wait_event(1 * MSEC);
/*
* d) Check that the UUT issues a Hard Reset.
*/
TEST_EQ(mock_tcpci_get_reg(TCPC_REG_TRANSMIT),
TCPC_TX_HARD_RESET, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS | TCPC_REG_ALERT_TX_FAILED);
mock_tcpci_set_reg(TCPC_REG_TRANSMIT, 0);
task_wait_event(1 * MSEC);
/*
* e) Do the bring-up procedure for Link tests and check that the link
* is successfully established.
*/
if (partner_get_power_role() == PD_ROLE_SINK) {
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP,
0,
PD_DATA_SOURCE_CAP),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_DATA_REQUEST, 1, 0, &rdo);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, PD_CTRL_ACCEPT, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, PD_CTRL_PS_RDY, 0),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
task_wait_event(5 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_CTRL_ACCEPT, 0, 0, NULL);
task_wait_event(1 * MSEC);
} else {
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_DATA_SOURCE_CAP, 1, 0, &pdo);
TEST_EQ(verify_tcpci_transmit(TCPC_TX_SOP, 0, PD_DATA_REQUEST),
EC_SUCCESS, "%d");
mock_set_alert(TCPC_REG_ALERT_TX_SUCCESS);
partner_send_msg(PD_MSG_SOP, PD_CTRL_ACCEPT, 0, 0, NULL);
task_wait_event(10 * MSEC);
partner_send_msg(PD_MSG_SOP, PD_CTRL_PS_RDY, 0, 0, NULL);
task_wait_event(1 * MSEC);
}
return EC_SUCCESS;
}
int test_td_pd_ll_e4_dfp(void)
{
return td_pd_ll_e4(PD_ROLE_DFP);
}
int test_td_pd_ll_e4_ufp(void)
{
return td_pd_ll_e4(PD_ROLE_UFP);
}
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