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/* Copyright 2023 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "emul/emul_amd_fp6.h"
#include "hooks.h"
#include "test/drivers/stubs.h"
#include "test/drivers/test_state.h"
#include "test/drivers/utils.h"
#include "usb_mux.h"
#include <zephyr/shell/shell.h>
#include <zephyr/ztest.h>
#define TEST_PORT 0
#define AMD_FP6_NODE DT_NODELABEL(amd_fp6_emul0)
struct amd_fp6_usb_mux_fixture {
const struct emul *amd_fp6_emul;
};
static void *amd_fp6_usb_mux_setup(void)
{
static struct amd_fp6_usb_mux_fixture fix;
fix.amd_fp6_emul = EMUL_DT_GET(AMD_FP6_NODE);
return &fix;
}
static void amd_fp6_usb_mux_before(void *fixture)
{
ARG_UNUSED(fixture);
/* Default to S0 for most cases */
test_set_chipset_to_s0();
}
ZTEST_SUITE(amd_fp6_usb_mux, drivers_predicate_post_main, amd_fp6_usb_mux_setup,
amd_fp6_usb_mux_before, NULL, NULL);
ZTEST(amd_fp6_usb_mux, test_usb_mode_set)
{
/* Test a basic set to USB mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_USB_ENABLED, USB_SWITCH_CONNECT, 0);
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_USB_ENABLED);
}
ZTEST(amd_fp6_usb_mux, test_dp_mode_set)
{
/* Test a basic set to DP mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_DP_ENABLED, USB_SWITCH_CONNECT, 0);
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_DP_ENABLED);
}
ZTEST(amd_fp6_usb_mux, test_dock_mode_set)
{
/* Test a basic set to docked mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_DOCK, USB_SWITCH_CONNECT, 0);
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_DOCK);
}
ZTEST(amd_fp6_usb_mux, test_safe_mode_set)
{
/* Test a basic set to safe mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_SAFE_MODE, USB_SWITCH_CONNECT, 0);
/* Note: this driver uses "none" and "safe" interchangeably */
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_NONE);
}
ZTEST(amd_fp6_usb_mux, test_none_set)
{
/* Test a basic set to none */
usb_mux_set(TEST_PORT, USB_PD_MUX_NONE, USB_SWITCH_CONNECT, 0);
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_NONE);
}
ZTEST(amd_fp6_usb_mux, test_dp_flipped_set)
{
/* Test a basic set to DP mode but flipped */
usb_mux_set(TEST_PORT, USB_PD_MUX_DP_ENABLED, USB_SWITCH_CONNECT, 1);
zassert_equal(usb_mux_get(TEST_PORT),
USB_PD_MUX_DP_ENABLED | USB_PD_MUX_POLARITY_INVERTED);
}
ZTEST(amd_fp6_usb_mux, test_hpd_unsupported)
{
/* Try to set HPD on the mux */
usb_mux_set(TEST_PORT, USB_PD_MUX_HPD_LVL, USB_SWITCH_CONNECT, 0);
/* And observe it didn't work */
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_NONE);
}
ZTEST_F(amd_fp6_usb_mux, test_mux_not_ready)
{
/* Set the crossbar to not ready yet */
amd_fp6_emul_set_xbar(fixture->amd_fp6_emul, false);
/* Send a basic set to USB mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_USB_ENABLED, USB_SWITCH_CONNECT, 0);
k_sleep(K_MSEC(100));
zassert_not_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_USB_ENABLED);
/* Allow the crossbar to be ready now */
amd_fp6_emul_set_xbar(fixture->amd_fp6_emul, true);
/* Driver retry is 1 second, so sleep for twice that */
k_sleep(K_SECONDS(2));
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_USB_ENABLED);
}
ZTEST_F(amd_fp6_usb_mux, test_chipset_reset)
{
/* Start with a set to dock mode but flipped */
usb_mux_set(TEST_PORT, USB_PD_MUX_DOCK, USB_SWITCH_CONNECT, 1);
zassert_equal(usb_mux_get(TEST_PORT),
USB_PD_MUX_DOCK | USB_PD_MUX_POLARITY_INVERTED);
/* Now "reset the SoC" with a register clear and hook notify */
amd_fp6_emul_reset_regs(fixture->amd_fp6_emul);
zassert_equal(usb_mux_get(TEST_PORT), USB_PD_MUX_NONE);
hook_notify(HOOK_CHIPSET_RESET);
/* Driver retry is 1 second, so sleep for twice that */
k_sleep(K_SECONDS(2));
zassert_equal(usb_mux_get(TEST_PORT),
USB_PD_MUX_DOCK | USB_PD_MUX_POLARITY_INVERTED);
}
ZTEST_F(amd_fp6_usb_mux, test_long_command)
{
/* Allow the mux to take a while, like on real systems */
amd_fp6_emul_set_delay(fixture->amd_fp6_emul, 100);
/* Send a basic set to USB mode */
usb_mux_set(TEST_PORT, USB_PD_MUX_USB_ENABLED, USB_SWITCH_CONNECT, 1);
k_sleep(K_MSEC(200));
zassert_equal(usb_mux_get(TEST_PORT),
USB_PD_MUX_USB_ENABLED | USB_PD_MUX_POLARITY_INVERTED);
}
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