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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.
*
* Test USB Protocol Layer module.
*/
#include "common.h"
#include "mock/tcpc_mock.h"
#include "mock/tcpm_mock.h"
#include "mock/usb_pe_sm_mock.h"
#include "mock/usb_tc_sm_mock.h"
#include "task.h"
#include "tcpm/tcpci.h"
#include "tcpm/tcpm.h"
#include "test_util.h"
#include "timer.h"
#include "usb_emsg.h"
#include "usb_pd.h"
#include "usb_pd_test_util.h"
#include "usb_pe_sm.h"
#include "usb_prl_sm.h"
#include "usb_sm_checks.h"
#include "usb_tc_sm.h"
#include "util.h"
#define PORT0 0
/* Install Mock TCPC and MUX drivers */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
{
.drv = &mock_tcpc_driver,
},
};
static enum pd_power_role get_partner_power_role(int port)
{
return pd_get_power_role(port) == PD_ROLE_SINK ?
PD_ROLE_SOURCE : PD_ROLE_SINK;
}
static enum pd_data_role get_partner_data_role(int port)
{
return pd_get_data_role(port) == PD_ROLE_UFP ?
PD_ROLE_DFP : PD_ROLE_UFP;
}
static void enable_prl(int port, int en)
{
tcpm_set_rx_enable(port, en);
mock_tc_port[port].pd_enable = en;
task_wait_event(10*MSEC);
prl_set_rev(port, TCPCI_MSG_SOP, mock_tc_port[port].rev);
}
static int test_receive_control_msg(void)
{
int port = PORT0;
uint16_t header = PD_HEADER(PD_CTRL_DR_SWAP,
get_partner_power_role(port),
get_partner_data_role(port),
mock_tc_port[port].msg_rx_id,
0, mock_tc_port[port].rev, 0);
/* Set up the message to be received. */
mock_tcpm_rx_msg(port, header, 0, NULL);
/* Process the message. */
task_wait_event(10*MSEC);
/* Check results. */
TEST_NE(mock_pe_port[port].mock_pe_message_received, 0, "%d");
TEST_EQ(header, rx_emsg[port].header, "%d");
TEST_EQ(rx_emsg[port].len, 0, "%d");
TEST_LE(mock_pe_port[port].mock_pe_error, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_message_discarded, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_got_soft_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_got_hard_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_hard_reset_sent, 0, "%d");
return EC_SUCCESS;
}
static int test_send_control_msg(void)
{
int port = PORT0;
/* Set up the message to be sent. */
prl_send_ctrl_msg(port, TCPCI_MSG_SOP, PD_CTRL_ACCEPT);
task_wait_event(MSEC);
/* Simulate the TX complete that the PD_INT handler would signal */
pd_transmit_complete(port, TCPC_TX_COMPLETE_SUCCESS);
task_wait_event(10*MSEC);
/* Check results. */
TEST_NE(mock_pe_port[port].mock_pe_message_sent, 0, "%d");
TEST_LE(mock_pe_port[port].mock_pe_error, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_message_discarded, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_got_soft_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_got_hard_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_hard_reset_sent, 0, "%d");
return EC_SUCCESS;
}
static int test_discard_queued_tx_when_rx_happens(void)
{
int port = PORT0;
uint16_t header = PD_HEADER(PD_CTRL_DR_SWAP,
get_partner_power_role(port),
get_partner_data_role(port),
mock_tc_port[port].msg_rx_id,
0, mock_tc_port[port].rev, 0);
uint8_t *buf = tx_emsg[port].buf;
uint8_t len = 8;
uint8_t i = 0;
/* Set up the message to be sent. */
for (i = 0 ; i < len ; i++)
buf[i] = (uint8_t)i;
tx_emsg[port].len = len;
prl_send_data_msg(port, TCPCI_MSG_SOP, PD_DATA_SOURCE_CAP);
/* Set up the message to be received. */
mock_tcpm_rx_msg(port, header, 0, NULL);
/* Process the message. */
task_wait_event(10*MSEC);
/* Check results. Source should have discarded its message queued up
* to TX, and should have received the message from the sink.
*/
TEST_NE(mock_pe_port[port].mock_pe_message_discarded, 0, "%d");
TEST_NE(mock_pe_port[port].mock_pe_message_received, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_message_sent, 0, "%d");
TEST_LE(mock_pe_port[port].mock_pe_error, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_got_soft_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_got_hard_reset, 0, "%d");
TEST_EQ(mock_pe_port[port].mock_pe_hard_reset_sent, 0, "%d");
return EC_SUCCESS;
}
void before_test(void)
{
mock_tc_port_reset();
mock_tc_port[PORT0].rev = PD_REV30;
mock_tc_port[PORT0].power_role = PD_ROLE_SOURCE;
mock_tc_port[PORT0].data_role = PD_ROLE_DFP;
mock_tcpm_reset();
mock_pe_port_reset();
prl_reset_soft(PORT0);
enable_prl(PORT0, 1);
}
void after_test(void)
{
enable_prl(PORT0, 0);
}
void run_test(int argc, char **argv)
{
RUN_TEST(test_receive_control_msg);
RUN_TEST(test_send_control_msg);
RUN_TEST(test_discard_queued_tx_when_rx_happens);
/* TODO add tests here */
/* Do basic state machine validity checks last. */
RUN_TEST(test_prl_no_parent_cycles);
RUN_TEST(test_prl_all_states_named);
test_print_result();
}
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