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/* Copyright 2019 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test USB-PD interrupt task.
*/
#include "task.h"
#include "test_util.h"
#include "mock/tcpc_mock.h"
#include "mock/timer_mock.h"
#include "mock/usb_mux_mock.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,
},
};
const struct usb_mux_chain usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { {
.mux =
&(const struct usb_mux){
.driver = &mock_usb_mux_driver,
},
} };
void board_reset_pd_mcu(void)
{
}
static int deferred_resume_called;
void pd_deferred_resume(int port)
{
deferred_resume_called = 1;
}
static int num_events;
uint16_t tcpc_get_alert_status(void)
{
if (--num_events > 0)
return PD_STATUS_TCPC_ALERT_0;
else
return 0;
}
test_static int test_storm_not_triggered(void)
{
num_events = 100;
deferred_resume_called = 0;
schedule_deferred_pd_interrupt(PORT0);
task_wait_event(SECOND);
TEST_EQ(deferred_resume_called, 0, "%d");
return EC_SUCCESS;
}
test_static int test_storm_triggered(void)
{
num_events = 1000;
deferred_resume_called = 0;
schedule_deferred_pd_interrupt(PORT0);
task_wait_event(SECOND);
TEST_EQ(deferred_resume_called, 1, "%d");
return EC_SUCCESS;
}
test_static int test_storm_not_triggered_for_32bit_overflow(void)
{
int i;
timestamp_t time;
/*
* Ensure the MSB is 1 for overflow comparison tests.
* But make sure not to move time backwards.
*/
time.val = (get_time().val + 0x100000000) | 0xff000000;
force_time(time);
/*
* 100 events every second for 10 seconds should never trigger
* a shutdown call.
*/
for (i = 0; i < 10; ++i) {
num_events = 100;
deferred_resume_called = 0;
schedule_deferred_pd_interrupt(PORT0);
task_wait_event(SECOND);
TEST_EQ(deferred_resume_called, 0, "%d");
}
return EC_SUCCESS;
}
void before_test(void)
{
pd_set_suspend(PORT0, 0);
}
void run_test(int argc, const char **argv)
{
/* Let tasks settle down */
task_wait_event(MINUTE);
RUN_TEST(test_storm_not_triggered);
RUN_TEST(test_storm_triggered);
RUN_TEST(test_storm_not_triggered_for_32bit_overflow);
test_print_result();
}
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