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Diffstat (limited to 'zephyr/test/drivers/anx7452/src/anx7452.c')
-rw-r--r--zephyr/test/drivers/anx7452/src/anx7452.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/zephyr/test/drivers/anx7452/src/anx7452.c b/zephyr/test/drivers/anx7452/src/anx7452.c
new file mode 100644
index 0000000000..f456dea845
--- /dev/null
+++ b/zephyr/test/drivers/anx7452/src/anx7452.c
@@ -0,0 +1,288 @@
+/* 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 "chipset.h"
+#include "common.h"
+#include "console.h"
+#include "driver/retimer/anx7452.h"
+#include "driver/retimer/anx7452_public.h"
+#include "emul/emul_anx7452.h"
+#include "emul/emul_common_i2c.h"
+#include "i2c.h"
+#include "test/drivers/stubs.h"
+#include "test/drivers/test_mocks.h"
+#include "test/drivers/test_state.h"
+#include "timer.h"
+#include "usb_mux.h"
+
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/drivers/emul.h>
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/drivers/gpio/gpio_emul.h>
+#include <zephyr/fff.h>
+#include <zephyr/kernel.h>
+#include <zephyr/ztest.h>
+
+#define GPIO_USB_C1_USB_EN_PATH NAMED_GPIOS_GPIO_NODE(usb_c1_ls_en)
+#define GPIO_USB_C1_USB_EN_PORT DT_GPIO_PIN(GPIO_USB_C1_USB_EN_PATH, gpios)
+#define GPIO_USB_C1_DP_EN_PATH NAMED_GPIOS_GPIO_NODE(usb_c1_rt_rst_odl)
+#define GPIO_USB_C1_DP_EN_PORT DT_GPIO_PIN(GPIO_USB_C1_DP_EN_PATH, gpios)
+
+#define ANX7452_NODE DT_NODELABEL(usb_c1_anx7452_emul)
+#define EMUL EMUL_DT_GET(ANX7452_NODE)
+#define COMMON_DATA(port) emul_anx7452_get_i2c_common_data(EMUL, port)
+
+ZTEST(anx7452, test_anx7452_init)
+{
+ const struct device *gpio_dev =
+ DEVICE_DT_GET(DT_GPIO_CTLR(GPIO_USB_C1_USB_EN_PATH, gpios));
+
+ zassert_not_null(gpio_dev, "Cannot get GPIO device");
+
+ /* Test successful init */
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_TOP_STATUS_REG), 0xFF,
+ NULL);
+ zassert_equal(
+ EC_SUCCESS,
+ anx7452_usb_retimer_driver.init(usb_muxes[USBC_PORT_C1].mux),
+ NULL);
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_TOP_STATUS_REG),
+ ANX7452_TOP_REG_EN, NULL);
+ zassert_equal(1,
+ gpio_emul_output_get(gpio_dev, GPIO_USB_C1_USB_EN_PORT),
+ NULL);
+
+ /* Setup emulator fail on write */
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ ANX7452_TOP_STATUS_REG);
+ /* With reg read fail, init should fail and pins should be unset */
+ zassert_equal(
+ EC_ERROR_INVAL,
+ anx7452_usb_retimer_driver.init(usb_muxes[USBC_PORT_C1].mux),
+ NULL);
+ zassert_equal(1,
+ gpio_emul_output_get(gpio_dev, GPIO_USB_C1_USB_EN_PORT),
+ NULL);
+
+ /* Do not fail on write */
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ /* Setup emulator fail on read */
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ ANX7452_TOP_STATUS_REG);
+ /* With reg read fail, init should fail and pins should be unset */
+ zassert_equal(
+ EC_ERROR_TIMEOUT,
+ anx7452_usb_retimer_driver.init(usb_muxes[USBC_PORT_C1].mux),
+ NULL);
+ zassert_equal(1,
+ gpio_emul_output_get(gpio_dev, GPIO_USB_C1_USB_EN_PORT),
+ NULL);
+
+ /* Do not fail on read */
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ /* Setup emulator fail on read */
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ ANX7452_TOP_STATUS_REG);
+ const uint32_t start_ms = k_uptime_get();
+ /* With reg read fail, init should fail and pins should be unset */
+ zassert_equal(
+ EC_ERROR_TIMEOUT,
+ anx7452_usb_retimer_driver.init(usb_muxes[USBC_PORT_C1].mux),
+ NULL);
+ const uint32_t end_ms = k_uptime_get();
+ /* With timeout caused by read fail, the time took should be greater
+ * than or equal to configured timeout value
+ */
+ zassert_true((end_ms - start_ms) >= ANX7452_I2C_WAKE_TIMEOUT_MS, NULL);
+ zassert_equal(1,
+ gpio_emul_output_get(gpio_dev, GPIO_USB_C1_USB_EN_PORT),
+ NULL);
+}
+
+ZTEST(anx7452, test_anx7452_get)
+{
+ mux_state_t mux_state = 0;
+
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+
+ anx7452_emul_set_reg(EMUL, ANX7452_TOP_STATUS_REG,
+ ANX7452_TOP_REG_EN | ANX7452_TOP_FLIP_INFO);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+ zassert_equal(mux_state, USB_PD_MUX_POLARITY_INVERTED);
+
+ anx7452_emul_set_reg(EMUL, ANX7452_TOP_STATUS_REG,
+ ANX7452_TOP_REG_EN | ANX7452_TOP_DP_INFO);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+ zassert_equal(mux_state, USB_PD_MUX_DP_ENABLED);
+
+ anx7452_emul_set_reg(EMUL, ANX7452_TOP_STATUS_REG,
+ ANX7452_TOP_REG_EN | ANX7452_TOP_TBT_INFO);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+ zassert_equal(mux_state, USB_PD_MUX_TBT_COMPAT_ENABLED);
+
+ anx7452_emul_set_reg(EMUL, ANX7452_TOP_STATUS_REG,
+ ANX7452_TOP_REG_EN | ANX7452_TOP_USB3_INFO);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+ zassert_equal(mux_state, USB_PD_MUX_USB_ENABLED);
+
+ anx7452_emul_set_reg(EMUL, ANX7452_TOP_STATUS_REG,
+ ANX7452_TOP_REG_EN | ANX7452_TOP_USB4_INFO);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+ zassert_equal(mux_state, USB_PD_MUX_USB4_ENABLED);
+
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ ANX7452_TOP_STATUS_REG);
+ zassert_equal(EC_ERROR_INVAL,
+ anx7452_usb_retimer_driver.get(
+ usb_muxes[USBC_PORT_C1].mux, &mux_state));
+}
+
+ZTEST(anx7452, test_anx7452_set)
+{
+ mux_state_t mux_state = 0;
+ bool ack_required;
+
+ zassert_equal(EC_SUCCESS, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+ zassert_equal(ack_required, false);
+
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG0_REG), 0);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ USB_PD_MUX_POLARITY_INVERTED, &ack_required));
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG0_REG),
+ ANX7452_CTLTOP_CFG0_FLIP_EN);
+
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ USB_PD_MUX_USB_ENABLED, &ack_required));
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG0_REG),
+ ANX7452_CTLTOP_CFG0_USB3_EN);
+
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG1_REG), 0);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ USB_PD_MUX_DP_ENABLED, &ack_required));
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG1_REG),
+ ANX7452_CTLTOP_CFG1_DP_EN);
+
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG2_REG), 0);
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ USB_PD_MUX_USB4_ENABLED, &ack_required));
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG2_REG),
+ ANX7452_CTLTOP_CFG2_USB4_EN);
+
+ zassert_equal(EC_SUCCESS,
+ anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ USB_PD_MUX_TBT_COMPAT_ENABLED, &ack_required));
+ zassert_equal(anx7452_emul_get_reg(EMUL, ANX7452_CTLTOP_CFG2_REG),
+ ANX7452_CTLTOP_CFG2_TBT_EN);
+
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG0_REG);
+ zassert_equal(EC_ERROR_INVAL, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG1_REG);
+ zassert_equal(EC_ERROR_INVAL, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG2_REG);
+ zassert_equal(EC_ERROR_INVAL, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG0_REG);
+ zassert_equal(EC_ERROR_TIMEOUT, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG1_REG);
+ zassert_equal(EC_ERROR_TIMEOUT, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ ANX7452_CTLTOP_CFG2_REG);
+ zassert_equal(EC_ERROR_TIMEOUT, anx7452_usb_retimer_driver.set(
+ usb_muxes[USBC_PORT_C1].mux,
+ mux_state, &ack_required));
+}
+
+static inline void reset_anx7452_state(void)
+{
+ i2c_common_emul_set_write_func(COMMON_DATA(TOP_EMUL_PORT), NULL, NULL);
+ i2c_common_emul_set_read_func(COMMON_DATA(TOP_EMUL_PORT), NULL, NULL);
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(TOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+
+ i2c_common_emul_set_write_func(COMMON_DATA(CTLTOP_EMUL_PORT), NULL,
+ NULL);
+ i2c_common_emul_set_read_func(COMMON_DATA(CTLTOP_EMUL_PORT), NULL,
+ NULL);
+ i2c_common_emul_set_write_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+ i2c_common_emul_set_read_fail_reg(COMMON_DATA(CTLTOP_EMUL_PORT),
+ I2C_COMMON_EMUL_NO_FAIL_REG);
+
+ anx7452_emul_reset(EMUL);
+}
+
+static void anx7452_before(void *state)
+{
+ ARG_UNUSED(state);
+ reset_anx7452_state();
+}
+
+static void anx7452_after(void *state)
+{
+ ARG_UNUSED(state);
+ reset_anx7452_state();
+}
+
+ZTEST_SUITE(anx7452, drivers_predicate_post_main, NULL, anx7452_before,
+ anx7452_after, NULL);
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