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/* Copyright 2019 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 PE module.
*/
#include "battery.h"
#include "common.h"
#include "task.h"
#include "test_util.h"
#include "timer.h"
#include "usb_emsg.h"
#include "usb_mux.h"
#include "usb_pe.h"
#include "usb_pe_sm.h"
#include "usb_prl_sm.h"
#include "usb_sm_checks.h"
#include "usb_tc_sm.h"
/**
* STUB Section
*/
const struct svdm_response svdm_rsp = {
.identity = NULL,
.svids = NULL,
.modes = NULL,
};
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT];
const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT];
int board_vbus_source_enabled(int port)
{
return 0;
}
void tc_request_power_swap(int port)
{
/* Do nothing */
}
void pd_set_vbus_discharge(int port, int enable)
{
gpio_set_level(GPIO_USB_C0_DISCHARGE, enable);
}
uint8_t tc_get_pd_enabled(int port)
{
return 1;
}
bool pd_alt_mode_capable(int port)
{
return 1;
}
void pd_set_suspend(int port, int suspend)
{
}
/**
* Test section
*/
/* PE Fast Role Swap */
static int test_pe_frs(void)
{
/*
* TODO: This test should validate PE boundary API differences -- not
* internal state changes.
*/
task_wait_event(10 * MSEC);
TEST_ASSERT(pe_is_running(PORT0));
/*
* FRS will only trigger when we are SNK, with an Explicit
* contract. So set this state up manually. Also ensure any
* background tasks (ex. discovery) aren't running.
*/
tc_prs_src_snk_assert_rd(PORT0);
pe_set_flag(PORT0, PE_FLAGS_VDM_SETUP_DONE);
pe_set_flag(PORT0, PE_FLAGS_EXPLICIT_CONTRACT);
set_state_pe(PORT0, PE_SNK_READY);
task_wait_event(10 * MSEC);
TEST_ASSERT(get_state_pe(PORT0) == PE_SNK_READY);
/*
* Trigger the Fast Role Switch from simulated ISR
*/
pd_got_frs_signal(PORT0);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_SIGNALED));
/*
* Verify we detected FRS and ready to start swap
*/
task_wait_event(10 * MSEC);
TEST_ASSERT(get_state_pe(PORT0) == PE_PRS_SNK_SRC_SEND_SWAP);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
TEST_ASSERT(!pe_chk_flag(PORT0, PE_FLAGS_EXPLICIT_CONTRACT));
/*
* Make sure that we sent FR_Swap
*/
task_wait_event(10 * MSEC);
TEST_ASSERT(fake_prl_get_last_sent_ctrl_msg(PORT0) == PD_CTRL_FR_SWAP);
TEST_ASSERT(get_state_pe(PORT0) == PE_PRS_SNK_SRC_SEND_SWAP);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
/*
* Accept the partners PS_RDY control message
*/
rx_emsg[PORT0].header = PD_HEADER(PD_CTRL_ACCEPT, 0, 0, 0, 0, 0, 0);
pe_set_flag(PORT0, PE_FLAGS_MSG_RECEIVED);
task_wait_event(10 * MSEC);
TEST_ASSERT(!pe_chk_flag(PORT0, PE_FLAGS_MSG_RECEIVED));
TEST_ASSERT(get_state_pe(PORT0) == PE_PRS_SNK_SRC_TRANSITION_TO_OFF);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
/*
* Send back our PS_RDY
*/
rx_emsg[PORT0].header = PD_HEADER(PD_CTRL_PS_RDY, 0, 0, 0, 0, 0, 0);
pe_set_flag(PORT0, PE_FLAGS_MSG_RECEIVED);
TEST_ASSERT(!tc_is_attached_src(PORT0));
task_wait_event(10 * MSEC);
TEST_ASSERT(!pe_chk_flag(PORT0, PE_FLAGS_MSG_RECEIVED));
TEST_ASSERT(tc_is_attached_src(PORT0));
TEST_ASSERT(get_state_pe(PORT0) == PE_PRS_SNK_SRC_SOURCE_ON);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
/*
* After delay we are ready to send our PS_RDY
*/
task_wait_event(PD_POWER_SUPPLY_TURN_ON_DELAY);
TEST_ASSERT(get_state_pe(PORT0) == PE_PRS_SNK_SRC_SOURCE_ON);
TEST_ASSERT(pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
TEST_ASSERT(fake_prl_get_last_sent_ctrl_msg(PORT0) == PD_CTRL_PS_RDY);
/*
* Fake the Transmit complete and this will bring us to Source Startup
*/
pe_set_flag(PORT0, PE_FLAGS_TX_COMPLETE);
task_wait_event(10 * MSEC);
TEST_ASSERT(get_state_pe(PORT0) == PE_SRC_STARTUP);
TEST_ASSERT(!pe_chk_flag(PORT0, PE_FLAGS_FAST_ROLE_SWAP_PATH));
return EC_SUCCESS;
}
static int test_vbus_gpio_discharge(void)
{
pd_set_vbus_discharge(PORT0, 1);
TEST_EQ(gpio_get_level(GPIO_USB_C0_DISCHARGE), 1, "%d");
pd_set_vbus_discharge(PORT0, 0);
TEST_EQ(gpio_get_level(GPIO_USB_C0_DISCHARGE), 0, "%d");
return EC_SUCCESS;
}
void run_test(int argc, char **argv)
{
test_reset();
RUN_TEST(test_pe_frs);
RUN_TEST(test_vbus_gpio_discharge);
/* Do basic state machine validity checks last. */
RUN_TEST(test_pe_no_parent_cycles);
RUN_TEST(test_pe_no_empty_state);
test_print_result();
}
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