diff options
Diffstat (limited to 'zephyr/test/drivers/src/bb_retimer.c')
| -rw-r--r-- | zephyr/test/drivers/src/bb_retimer.c | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/zephyr/test/drivers/src/bb_retimer.c b/zephyr/test/drivers/src/bb_retimer.c new file mode 100644 index 0000000000..ac53df4779 --- /dev/null +++ b/zephyr/test/drivers/src/bb_retimer.c @@ -0,0 +1,426 @@ +/* Copyright 2021 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. + */ + +#include <zephyr.h> +#include <ztest.h> + +#include "common.h" +#include "ec_tasks.h" +#include "emul/emul_bb_retimer.h" +#include "hooks.h" +#include "i2c.h" +#include "stubs.h" +#include "usb_prl_sm.h" +#include "usb_tc_sm.h" + +#include "driver/retimer/bb_retimer.h" + +#define EMUL_LABEL DT_NODELABEL(usb_c1_bb_retimer_emul) + +#define BB_RETIMER_ORD DT_DEP_ORD(EMUL_LABEL) + +/** Test is retimer fw update capable function. */ +static void test_bb_is_fw_update_capable(void) +{ + /* BB retimer is fw update capable */ + zassert_true(bb_usb_retimer.is_retimer_fw_update_capable(), NULL); +} + +/** Test is retimer fw update capable function. */ +static void test_bb_set_state(void) +{ + struct pd_discovery *disc; + uint32_t conn, exp_conn; + struct i2c_emul *emul; + bool ack_required; + + emul = bb_emul_get(BB_RETIMER_ORD); + + set_test_runner_tid(); + + /* Setup emulator fail on write */ + bb_emul_set_write_fail_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + + /* Test fail on reset register write */ + zassert_equal(-EIO, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_NONE, &ack_required), + NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + + /* Do not fail on write */ + bb_emul_set_write_fail_reg(emul, BB_EMUL_NO_FAIL_REG); + + /* Set UFP role for whole test */ + tc_set_data_role(USBC_PORT_C1, PD_ROLE_UFP); + + /* Test none mode */ + bb_emul_set_reg(emul, BB_RETIMER_REG_CONNECTION_STATE, 0x12144678); + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_NONE, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + /* Only UFP mode is set */ + exp_conn = BB_RETIMER_USB_DATA_ROLE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test USB3 gen1 mode */ + prl_set_rev(USBC_PORT_C1, TCPCI_MSG_SOP_PRIME, PD_REV10); + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_USB_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_USB_3_CONNECTION; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test USB3 gen2 mode */ + disc = pd_get_am_discovery(USBC_PORT_C1, TCPCI_MSG_SOP_PRIME); + disc->identity.product_t1.p_rev20.ss = USB_R20_SS_U31_GEN1_GEN2; + prl_set_rev(USBC_PORT_C1, TCPCI_MSG_SOP_PRIME, PD_REV30); + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_USB_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_USB_3_CONNECTION | + BB_RETIMER_USB_3_SPEED; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test USB4 mode */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_USB4_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_USB4_ENABLED; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test USB4 mode with polarity inverted */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_USB4_ENABLED | + USB_PD_MUX_POLARITY_INVERTED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_CONNECTION_ORIENTATION | + BB_RETIMER_USB4_ENABLED; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test DP mode */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_DP_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_DP_CONNECTION; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_DP_ENABLED | + USB_PD_MUX_HPD_IRQ, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_DP_CONNECTION | + BB_RETIMER_IRQ_HPD; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_DP_ENABLED | + USB_PD_MUX_HPD_LVL, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_USB_DATA_ROLE | + BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_DP_CONNECTION | + BB_RETIMER_HPD_LVL; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); +} + +/** Test setting different options for DFP role */ +static void test_bb_set_dfp_state(void) +{ + union tbt_mode_resp_device device_resp; + union tbt_mode_resp_cable cable_resp; + struct pd_discovery *disc, *dev_disc; + uint32_t conn, exp_conn; + struct i2c_emul *emul; + bool ack_required; + + emul = bb_emul_get(BB_RETIMER_ORD); + + set_test_runner_tid(); + + tc_set_data_role(USBC_PORT_C1, PD_ROLE_DFP); + + /* Test PD mux none mode with DFP should clear all bits in state */ + bb_emul_set_reg(emul, BB_RETIMER_REG_CONNECTION_STATE, 0x12144678); + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_NONE, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = 0; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Set active cable type */ + disc = pd_get_am_discovery(USBC_PORT_C1, TCPCI_MSG_SOP_PRIME); + disc->identity.idh.product_type = IDH_PTYPE_ACABLE; + disc->identity.product_t2.a2_rev30.active_elem = ACTIVE_RETIMER; + prl_set_rev(USBC_PORT_C1, TCPCI_MSG_SOP_PRIME, PD_REV30); + + /* Set cable VDO */ + disc->svid_cnt = 1; + disc->svids[0].svid = USB_VID_INTEL; + disc->svids[0].discovery = PD_DISC_COMPLETE; + disc->svids[0].mode_cnt = 1; + cable_resp.tbt_alt_mode = TBT_ALTERNATE_MODE; + cable_resp.tbt_cable_speed = TBT_SS_RES_0; + cable_resp.tbt_rounded = TBT_GEN3_NON_ROUNDED; + cable_resp.tbt_cable = TBT_CABLE_NON_OPTICAL; + cable_resp.retimer_type = USB_NOT_RETIMER; + cable_resp.lsrx_comm = BIDIR_LSRX_COMM; + cable_resp.tbt_active_passive = TBT_CABLE_PASSIVE; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + + /* Set device VDO */ + dev_disc = pd_get_am_discovery(USBC_PORT_C1, TCPCI_MSG_SOP); + dev_disc->svid_cnt = 1; + dev_disc->svids[0].svid = USB_VID_INTEL; + dev_disc->svids[0].discovery = PD_DISC_COMPLETE; + dev_disc->svids[0].mode_cnt = 1; + device_resp.tbt_alt_mode = TBT_ALTERNATE_MODE; + device_resp.tbt_adapter = TBT_ADAPTER_TBT3; + device_resp.intel_spec_b0 = VENDOR_SPECIFIC_NOT_SUPPORTED; + device_resp.vendor_spec_b0 = VENDOR_SPECIFIC_NOT_SUPPORTED; + device_resp.vendor_spec_b1 = VENDOR_SPECIFIC_NOT_SUPPORTED; + dev_disc->svids[0].mode_vdo[0] = device_resp.raw_value; + + /* Test USB mode with active cable */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_USB_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_USB_3_CONNECTION | + BB_RETIMER_USB_3_SPEED | + BB_RETIMER_RE_TIMER_DRIVER | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with active cable */ + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with retimer */ + cable_resp.retimer_type = USB_RETIMER; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_RE_TIMER_DRIVER | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with optical cable */ + cable_resp.retimer_type = USB_NOT_RETIMER; + cable_resp.tbt_cable = TBT_CABLE_OPTICAL; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_TBT_CABLE_TYPE | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with active link training */ + cable_resp.tbt_cable = TBT_CABLE_NON_OPTICAL; + cable_resp.lsrx_comm = UNIDIR_LSRX_COMM; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_TBT_ACTIVE_LINK_TRAINING | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with different cable speeds */ + cable_resp.lsrx_comm = BIDIR_LSRX_COMM; + cable_resp.tbt_cable_speed = TBT_SS_U31_GEN1; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_USB4_TBT_CABLE_SPEED_SUPPORT(1) | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + cable_resp.tbt_cable_speed = TBT_SS_U32_GEN1_GEN2; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_USB4_TBT_CABLE_SPEED_SUPPORT(2) | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + cable_resp.tbt_cable_speed = TBT_SS_TBT_GEN3; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_USB4_TBT_CABLE_SPEED_SUPPORT(3) | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with TBT gen4 cable */ + cable_resp.tbt_cable_speed = TBT_SS_RES_0; + cable_resp.tbt_rounded = TBT_GEN3_GEN4_ROUNDED_NON_ROUNDED; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_TBT_CABLE_GENERATION(1) | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with legacy TBT adapter */ + cable_resp.tbt_rounded = TBT_GEN3_NON_ROUNDED; + disc->svids[0].mode_vdo[0] = cable_resp.raw_value; + device_resp.tbt_adapter = TBT_ADAPTER_TBT2_LEGACY; + dev_disc->svids[0].mode_vdo[0] = device_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_TBT_TYPE | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with Intel specific b0 */ + device_resp.tbt_adapter = TBT_ADAPTER_TBT3; + device_resp.intel_spec_b0 = VENDOR_SPECIFIC_SUPPORTED; + dev_disc->svids[0].mode_vdo[0] = device_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_VPRO_DOCK_DP_OVERDRIVE | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); + + /* Test TBT mode with vendor specific b1 */ + device_resp.intel_spec_b0 = VENDOR_SPECIFIC_NOT_SUPPORTED; + device_resp.vendor_spec_b1 = VENDOR_SPECIFIC_SUPPORTED; + dev_disc->svids[0].mode_vdo[0] = device_resp.raw_value; + zassert_equal(EC_SUCCESS, bb_usb_retimer.set(&usb_muxes[USBC_PORT_C1], + USB_PD_MUX_TBT_COMPAT_ENABLED, + &ack_required), NULL); + zassert_false(ack_required, "ACK is never required for BB retimer"); + conn = bb_emul_get_reg(emul, BB_RETIMER_REG_CONNECTION_STATE); + exp_conn = BB_RETIMER_DATA_CONNECTION_PRESENT | + BB_RETIMER_TBT_CONNECTION | + BB_RETIMER_VPRO_DOCK_DP_OVERDRIVE | + BB_RETIMER_ACTIVE_PASSIVE; + zassert_equal(exp_conn, conn, "Expected state 0x%lx, got 0x%lx", + exp_conn, conn); +} + +void test_suite_bb_retimer(void) +{ + ztest_test_suite(bb_retimer, + ztest_user_unit_test(test_bb_is_fw_update_capable), + ztest_user_unit_test(test_bb_set_state), + ztest_user_unit_test(test_bb_set_dfp_state)); + ztest_run_test_suite(bb_retimer); +} |