diff options
Diffstat (limited to 'board/servo_v4/usb_pd_policy.c')
| -rw-r--r-- | board/servo_v4/usb_pd_policy.c | 1018 |
1 files changed, 0 insertions, 1018 deletions
diff --git a/board/servo_v4/usb_pd_policy.c b/board/servo_v4/usb_pd_policy.c deleted file mode 100644 index bb171053bd..0000000000 --- a/board/servo_v4/usb_pd_policy.c +++ /dev/null @@ -1,1018 +0,0 @@ -/* Copyright 2017 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 "atomic.h" -#include "charge_manager.h" -#include "common.h" -#include "console.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "i2c.h" -#include "registers.h" -#include "system.h" -#include "task.h" -#include "tcpm.h" -#include "timer.h" -#include "util.h" -#include "usb_common.h" -#include "usb_mux.h" -#include "usb_pd.h" -#include "usb_pd_config.h" -#include "usb_pd_tcpm.h" - -#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) -#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) - -#define DUT_PDO_FIXED_FLAGS (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |\ - PDO_FIXED_COMM_CAP) - -#define CHG_PDO_FIXED_FLAGS (PDO_FIXED_DATA_SWAP) - -#define VBUS_UNCHANGED(curr, pend, new) (curr == new && pend == new) - -/* Macros to config the PD role */ -#define CONFIG_SET_CLEAR(c, set, clear) ((c | (set)) & ~(clear)) -#define CONFIG_SRC(c) CONFIG_SET_CLEAR(c, \ - CC_DISABLE_DTS | CC_ALLOW_SRC, \ - CC_ENABLE_DRP | CC_SNK_WITH_PD) -#define CONFIG_SNK(c) CONFIG_SET_CLEAR(c, \ - CC_DISABLE_DTS, \ - CC_ALLOW_SRC | CC_ENABLE_DRP | CC_SNK_WITH_PD) -#define CONFIG_PDSNK(c) CONFIG_SET_CLEAR(c, \ - CC_DISABLE_DTS | CC_SNK_WITH_PD, \ - CC_ALLOW_SRC | CC_ENABLE_DRP) -#define CONFIG_DRP(c) CONFIG_SET_CLEAR(c, \ - CC_DISABLE_DTS | CC_ALLOW_SRC | CC_ENABLE_DRP, \ - CC_SNK_WITH_PD) -#define CONFIG_SRCDTS(c) CONFIG_SET_CLEAR(c, \ - CC_ALLOW_SRC, \ - CC_ENABLE_DRP | CC_DISABLE_DTS | CC_SNK_WITH_PD) -#define CONFIG_SNKDTS(c) CONFIG_SET_CLEAR(c, \ - 0, \ - CC_ALLOW_SRC | CC_ENABLE_DRP | \ - CC_DISABLE_DTS | CC_SNK_WITH_PD) -#define CONFIG_PDSNKDTS(c) CONFIG_SET_CLEAR(c, \ - CC_SNK_WITH_PD, \ - CC_ALLOW_SRC | CC_ENABLE_DRP | CC_DISABLE_DTS) -#define CONFIG_DRPDTS(c) CONFIG_SET_CLEAR(c, \ - CC_ALLOW_SRC | CC_ENABLE_DRP, \ - CC_DISABLE_DTS | CC_SNK_WITH_PD) - -/* Macros to apply Rd/Rp to CC lines */ -#define DUT_ACTIVE_CC_SET(r, flags) \ - gpio_set_flags(cc_config & CC_POLARITY ? \ - CONCAT2(GPIO_USB_DUT_CC2_, r) : \ - CONCAT2(GPIO_USB_DUT_CC1_, r), \ - flags) -#define DUT_INACTIVE_CC_SET(r, flags) \ - gpio_set_flags(cc_config & CC_POLARITY ? \ - CONCAT2(GPIO_USB_DUT_CC1_, r) : \ - CONCAT2(GPIO_USB_DUT_CC2_, r), \ - flags) -#define DUT_BOTH_CC_SET(r, flags) \ - do { \ - gpio_set_flags(CONCAT2(GPIO_USB_DUT_CC1_, r), flags); \ - gpio_set_flags(CONCAT2(GPIO_USB_DUT_CC2_, r), flags); \ - } while (0) - -#define DUT_ACTIVE_CC_PU(r) DUT_ACTIVE_CC_SET(r, GPIO_OUT_HIGH) -#define DUT_INACTIVE_CC_PU(r) DUT_INACTIVE_CC_SET(r, GPIO_OUT_HIGH) -#define DUT_ACTIVE_CC_PD(r) DUT_ACTIVE_CC_SET(r, GPIO_OUT_LOW) -#define DUT_BOTH_CC_PD(r) DUT_BOTH_CC_SET(r, GPIO_OUT_LOW) -#define DUT_BOTH_CC_OPEN(r) DUT_BOTH_CC_SET(r, GPIO_INPUT) - -/* - * Dynamic PDO that reflects capabilities present on the CHG port. Allow for - * multiple entries so that we can offer greater than 5V charging. The 1st - * entry will be fixed 5V, but its current value may change based on the CHG - * port vbus info. Subsequent entries are used for when offering vbus greater - * than 5V. - */ -static const uint16_t pd_src_voltages_mv[] = { - 5000, 9000, 12000, 15000, 20000, -}; -static uint32_t pd_src_chg_pdo[ARRAY_SIZE(pd_src_voltages_mv)]; -static uint8_t chg_pdo_cnt; - -const uint32_t pd_snk_pdo[] = { - PDO_FIXED(5000, 500, CHG_PDO_FIXED_FLAGS), - PDO_BATT(4750, 21000, 15000), - PDO_VAR(4750, 21000, 3000), -}; -const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo); - -struct vbus_prop { - int mv; - int ma; -}; -static struct vbus_prop vbus[CONFIG_USB_PD_PORT_MAX_COUNT]; -static int active_charge_port = CHARGE_PORT_NONE; -static enum charge_supplier active_charge_supplier; -static uint8_t vbus_rp = TYPEC_RP_RESERVED; - -static int cc_config = CC_ALLOW_SRC; - -/* Voltage thresholds for no connect in DTS mode */ -static int pd_src_vnc_dts[TYPEC_RP_RESERVED][2] = { - {PD_SRC_3_0_VNC_MV, PD_SRC_1_5_VNC_MV}, - {PD_SRC_1_5_VNC_MV, PD_SRC_DEF_VNC_MV}, - {PD_SRC_3_0_VNC_MV, PD_SRC_DEF_VNC_MV}, -}; -/* Voltage thresholds for Ra attach in DTS mode */ -static int pd_src_rd_threshold_dts[TYPEC_RP_RESERVED][2] = { - {PD_SRC_3_0_RD_THRESH_MV, PD_SRC_1_5_RD_THRESH_MV}, - {PD_SRC_1_5_RD_THRESH_MV, PD_SRC_DEF_RD_THRESH_MV}, - {PD_SRC_3_0_RD_THRESH_MV, PD_SRC_DEF_RD_THRESH_MV}, -}; -/* Voltage thresholds for no connect in normal SRC mode */ -static int pd_src_vnc[TYPEC_RP_RESERVED] = { - PD_SRC_DEF_VNC_MV, - PD_SRC_1_5_VNC_MV, - PD_SRC_3_0_VNC_MV, -}; -/* Voltage thresholds for Ra attach in normal SRC mode */ -static int pd_src_rd_threshold[TYPEC_RP_RESERVED] = { - PD_SRC_DEF_RD_THRESH_MV, - PD_SRC_1_5_RD_THRESH_MV, - PD_SRC_3_0_RD_THRESH_MV, -}; - -/* Saved value for the duration of faking PD disconnect */ -static int fake_pd_disconnect_duration_us; - -/* Shadow what would be in TCPC register state. */ -static int rp_value_stored = TYPEC_RP_USB; -static int cc_pull_stored = TYPEC_CC_RD; - -/* - * Set the USB PD max voltage to value appropriate for the board version. - * The red/blue versions of servo_v4 have an ESD between VBUS and CC1/CC2 - * that has a breakdown voltage of 11V. - */ -#define MAX_MV_RED_BLUE 9000 - -static int user_limited_max_mv = 20000; - -static uint32_t max_supported_voltage(void) -{ - int board_max_mv = board_get_version() >= BOARD_VERSION_BLACK ? - PD_MAX_VOLTAGE_MV : MAX_MV_RED_BLUE; - - return board_max_mv < user_limited_max_mv ? board_max_mv : - user_limited_max_mv; -} - -static int charge_port_is_active(void) -{ - return active_charge_port == CHG && vbus[CHG].mv > 0; -} - -static int is_charge_through_allowed(void) -{ - return charge_port_is_active() && cc_config & CC_ALLOW_SRC; -} - -static int get_dual_role_of_src(void) -{ - return cc_config & CC_ENABLE_DRP ? PD_DRP_TOGGLE_ON : - PD_DRP_FORCE_SOURCE; -} - -static void dut_allow_charge(void) -{ - /* - * Update to charge enable if charger still present and not - * already charging. - */ - if (is_charge_through_allowed() && - pd_get_dual_role(DUT) != PD_DRP_FORCE_SOURCE && - pd_get_dual_role(DUT) != PD_DRP_TOGGLE_ON) { - CPRINTS("Enable DUT charge through"); - pd_set_dual_role(DUT, get_dual_role_of_src()); - /* - * If DRP role, don't set any CC pull resistor, the PD - * state machine will toggle and set the pull resistors - * when needed. - */ - if (!(cc_config & CC_ENABLE_DRP)) - pd_set_host_mode(DUT, 1); - - /* - * Enable PD comm. The PD comm may be disabled during - * the power charge-through was detached. - */ - pd_comm_enable(DUT, 1); - - pd_update_contract(DUT); - } -} -DECLARE_DEFERRED(dut_allow_charge); - -static void board_manage_dut_port(void) -{ - enum pd_dual_role_states allowed_role; - enum pd_dual_role_states current_role; - - /* - * This function is called by the CHG port whenever there has been a - * change in its vbus voltage or current. That change may necessitate - * that the DUT port present a different Rp value or renogiate its PD - * contract if it is connected. - */ - - /* Assume the default value of Rd */ - allowed_role = PD_DRP_FORCE_SINK; - - /* If VBUS charge through is available, mark as such. */ - if (is_charge_through_allowed()) - allowed_role = get_dual_role_of_src(); - - current_role = pd_get_dual_role(DUT); - if (current_role != allowed_role) { - /* Update role. */ - if (allowed_role == PD_DRP_FORCE_SINK) { - /* We've lost charge through. Disable VBUS. */ - gpio_set_level(GPIO_DUT_CHG_EN, 0); - - /* Mark as SNK only. */ - pd_set_dual_role(DUT, PD_DRP_FORCE_SINK); - pd_set_host_mode(DUT, 0); - - /* - * Disable PD comm. It matches the user expectation that - * unplugging the power charge-through makes servo v4 as - * a passive hub, without any PD support. - * - * There is an exception that servo v4 is explicitly set - * to have PD, like the "pnsnk" mode. - */ - pd_comm_enable(DUT, cc_config & CC_SNK_WITH_PD ? 1 : 0); - } else { - /* Allow charge through after PD negotiate. */ - hook_call_deferred(&dut_allow_charge_data, 2000 * MSEC); - } - } - - /* - * Update PD contract to reflect new available CHG - * voltage/current values. - */ - pd_update_contract(DUT); -} - -static void update_ports(void) -{ - int pdo_index, src_index, snk_index, i; - uint32_t pdo, max_ma, max_mv; - - /* - * CHG Vbus has changed states, update PDO that reflects CHG port - * state - */ - if (!charge_port_is_active()) { - /* CHG Vbus has dropped, so become SNK. */ - chg_pdo_cnt = 0; - } else { - /* Advertise the 'best' PDOs at various discrete voltages */ - if (active_charge_supplier == CHARGE_SUPPLIER_PD) { - src_index = 0; - snk_index = -1; - - for (i = 0; i < ARRAY_SIZE(pd_src_voltages_mv); ++i) { - /* Adhere to board voltage limits */ - if (pd_src_voltages_mv[i] > - max_supported_voltage()) - break; - - /* Find the 'best' PDO <= voltage */ - pdo_index = - pd_find_pdo_index(pd_get_src_cap_cnt(CHG), - pd_get_src_caps(CHG), - pd_src_voltages_mv[i], &pdo); - /* Don't duplicate PDOs */ - if (pdo_index == snk_index) - continue; - /* Skip battery / variable PDOs */ - if ((pdo & PDO_TYPE_MASK) != PDO_TYPE_FIXED) - continue; - - snk_index = pdo_index; - pd_extract_pdo_power(pdo, &max_ma, &max_mv); - pd_src_chg_pdo[src_index++] = - PDO_FIXED_VOLT(max_mv) | - PDO_FIXED_CURR(max_ma) | - DUT_PDO_FIXED_FLAGS | - PDO_FIXED_EXTERNAL; - } - chg_pdo_cnt = src_index; - } else { - /* 5V PDO */ - pd_src_chg_pdo[0] = PDO_FIXED_VOLT(PD_MIN_MV) | - PDO_FIXED_CURR(vbus[CHG].ma) | - DUT_PDO_FIXED_FLAGS | - PDO_FIXED_EXTERNAL; - - chg_pdo_cnt = 1; - } - } - - /* Call DUT port manager to update Rp and possible PD contract */ - board_manage_dut_port(); -} - -int board_set_active_charge_port(int charge_port) -{ - if (charge_port == DUT) - return -1; - - active_charge_port = charge_port; - update_ports(); - - if (!charge_port_is_active()) - /* Don't negotiate > 5V, except in lockstep with DUT */ - pd_set_external_voltage_limit(CHG, PD_MIN_MV); - - return 0; -} - -void board_set_charge_limit(int port, int supplier, int charge_ma, - int max_ma, int charge_mv) -{ - if (port != CHG) - return; - - active_charge_supplier = supplier; - - /* Update the voltage/current values for CHG port */ - vbus[CHG].ma = charge_ma; - vbus[CHG].mv = charge_mv; - update_ports(); -} - -__override uint8_t board_get_src_dts_polarity(int port) -{ - /* - * When servo configured as srcdts, the CC polarity is based - * on the flags. - */ - if (port == DUT) - return !!(cc_config & CC_POLARITY); - - return 0; -} - -int pd_tcpc_cc_nc(int port, int cc_volt, int cc_sel) -{ - int rp_index; - int nc; - - /* Can never be called from CHG port as it's sink only */ - if (port == CHG) - return 0; - - rp_index = vbus_rp; - /* - * If rp_index > 2, then always return not connected. This case should - * only happen when all Rp GPIO controls are tri-stated. - */ - if (rp_index >= TYPEC_RP_RESERVED) - return 1; - - /* Select the correct voltage threshold for current Rp and DTS mode */ - if (cc_config & CC_DISABLE_DTS) - nc = cc_volt >= pd_src_vnc[rp_index]; - else - nc = cc_volt >= pd_src_vnc_dts[rp_index][ - cc_config & CC_POLARITY ? !cc_sel : cc_sel]; - - return nc; -} - -int pd_tcpc_cc_ra(int port, int cc_volt, int cc_sel) -{ - int rp_index; - int ra; - - /* Can never be called from CHG port as it's sink only */ - if (port == CHG) - return 0; - - rp_index = vbus_rp; - /* - * If rp_index > 2, then can't be Ra. This case should - * only happen when all Rp GPIO controls are tri-stated. - */ - if (rp_index >= TYPEC_RP_RESERVED) - return 0; - - /* Select the correct voltage threshold for current Rp and DTS mode */ - if (cc_config & CC_DISABLE_DTS) - ra = cc_volt < pd_src_rd_threshold[rp_index]; - else - ra = cc_volt < pd_src_rd_threshold_dts[rp_index][ - cc_config & CC_POLARITY ? !cc_sel : cc_sel]; - - return ra; -} - -int pd_adc_read(int port, int cc) -{ - int mv; - - if (port == 0) - mv = adc_read_channel(cc ? ADC_CHG_CC2_PD : ADC_CHG_CC1_PD); - else if (!(cc_config & CC_DETACH)) { - /* - * In servo v4 hardware logic, both CC lines are wired directly - * to DUT. When servo v4 as a snk, DUT may source Vconn to CC2 - * (CC1 if polarity flip) and make the voltage high as vRd-3.0, - * which makes the PD state mess up. As the PD state machine - * doesn't handle this case. It assumes that CC2 (CC1 if - * polarity flip) is separated by a Type-C cable, resulting a - * voltage lower than the max of vRa. - * - * It fakes the voltage within vRa. - */ - if ((cc_config & CC_DISABLE_DTS) && - cc_pull_stored == TYPEC_CC_RD && port == DUT && - cc == (cc_config & CC_POLARITY ? 0 : 1)) - mv = 0; - else - mv = adc_read_channel(cc ? ADC_DUT_CC2_PD : - ADC_DUT_CC1_PD); - } else { - /* - * When emulating detach, fake the voltage on CC to 0 to avoid - * triggering some debounce logic. - * - * The servo v4 makes Rd/Rp open but the DUT may present Rd/Rp - * alternatively that makes the voltage on CC falls into some - * unexpected range and triggers the PD state machine switching - * between SNK_DISCONNECTED and SNK_DISCONNECTED_DEBOUNCE. - */ - mv = 0; - } - - return mv; -} - -static int board_set_rp(int rp) -{ - if (cc_config & CC_DISABLE_DTS) { - /* - * DTS mode is disabled, so only present the requested Rp value - * on CC1 (active) and leave all Rp/Rd resistors on CC2 - * (inactive) disconnected. - */ - switch (rp) { - case TYPEC_RP_USB: - DUT_ACTIVE_CC_PU(RPUSB); - break; - case TYPEC_RP_1A5: - DUT_ACTIVE_CC_PU(RP1A5); - break; - case TYPEC_RP_3A0: - DUT_ACTIVE_CC_PU(RP3A0); - break; - case TYPEC_RP_RESERVED: - /* - * This case can be used to force a detach event since - * all values are set to inputs above. Nothing else to - * set. - */ - break; - default: - return EC_ERROR_INVAL; - } - } else { - /* DTS mode is enabled. The rp parameter is used to select the - * Type C current limit to advertise. The combinations of Rp on - * each CC line is shown in the table below. - * - * CC values for Debug sources (DTS) - * - * Source type Mode of Operation CC1 CC2 - * --------------------------------------------- - * DTS Default USB Power Rp3A0 Rp1A5 - * DTS USB-C @ 1.5 A Rp1A5 RpUSB - * DTS USB-C @ 3 A Rp3A0 RpUSB - */ - switch (rp) { - case TYPEC_RP_USB: - DUT_ACTIVE_CC_PU(RP3A0); - DUT_INACTIVE_CC_PU(RP1A5); - break; - case TYPEC_RP_1A5: - DUT_ACTIVE_CC_PU(RP1A5); - DUT_INACTIVE_CC_PU(RPUSB); - break; - case TYPEC_RP_3A0: - DUT_ACTIVE_CC_PU(RP3A0); - DUT_INACTIVE_CC_PU(RPUSB); - break; - case TYPEC_RP_RESERVED: - /* - * This case can be used to force a detach event since - * all values are set to inputs above. Nothing else to - * set. - */ - break; - default: - return EC_ERROR_INVAL; - } - } - /* Save new Rp value for DUT port */ - vbus_rp = rp; - - return EC_SUCCESS; -} - -int pd_set_rp_rd(int port, int cc_pull, int rp_value) -{ - int rv = EC_SUCCESS; - - if (port != 1) - return EC_ERROR_UNIMPLEMENTED; - - /* CC is disabled for emulating detach. Don't change Rd/Rp. */ - if (cc_config & CC_DETACH) - return EC_SUCCESS; - - /* By default disconnect all Rp/Rd resistors from both CC lines */ - /* Set Rd for CC1/CC2 to High-Z. */ - DUT_BOTH_CC_OPEN(RD); - /* Set Rp for CC1/CC2 to High-Z. */ - DUT_BOTH_CC_OPEN(RP3A0); - DUT_BOTH_CC_OPEN(RP1A5); - DUT_BOTH_CC_OPEN(RPUSB); - /* Set TX Hi-Z */ - DUT_BOTH_CC_OPEN(TX_DATA); - - if (cc_pull == TYPEC_CC_RP) { - rv = board_set_rp(rp_value); - } else if (cc_pull == TYPEC_CC_RD) { - /* - * The DUT port uses a captive cable. It can present Rd on both - * CC1 and CC2. If DTS mode is enabled, then present Rd on both - * CC lines. However, if DTS mode is disabled only present Rd on - * CC1 (active). - */ - if (cc_config & CC_DISABLE_DTS) - DUT_ACTIVE_CC_PD(RD); - else - DUT_BOTH_CC_PD(RD); - - } - - rp_value_stored = rp_value; - cc_pull_stored = cc_pull; - - return rv; -} - -int board_select_rp_value(int port, int rp) -{ - if (port != 1) - return EC_ERROR_UNIMPLEMENTED; - - /* - * Update Rp value to indicate non-pd power available. - * Do not change pull direction though. - */ - if ((rp != rp_value_stored) && (cc_pull_stored == TYPEC_CC_RP)) { - rp_value_stored = rp; - return pd_set_rp_rd(port, TYPEC_CC_RP, rp); - } - - return EC_SUCCESS; -} - -int charge_manager_get_source_pdo(const uint32_t **src_pdo, const int port) -{ - int pdo_cnt = 0; - - /* - * If CHG is providing VBUS, then advertise what's available on the CHG - * port, otherwise we provide no power. - */ - if (charge_port_is_active()) { - *src_pdo = pd_src_chg_pdo; - pdo_cnt = chg_pdo_cnt; - } - - return pdo_cnt; -} - -int pd_is_valid_input_voltage(int mv) -{ - /* Any voltage less than the max is allowed */ - return 1; -} - -void pd_transition_voltage(int idx) -{ - timestamp_t deadline; - uint32_t ma, mv; - - pd_extract_pdo_power(pd_src_chg_pdo[idx - 1], &ma, &mv); - /* Is this a transition to a new voltage? */ - if (charge_port_is_active() && vbus[CHG].mv != mv) { - /* - * Alter voltage limit on charge port, this should cause - * the port to select the desired PDO. - */ - pd_set_external_voltage_limit(CHG, mv); - - /* Wait for CHG transition */ - deadline.val = get_time().val + PD_T_PS_TRANSITION; - CPRINTS("Waiting for CHG port transition"); - while (charge_port_is_active() && - vbus[CHG].mv != mv && - get_time().val < deadline.val) - msleep(10); - - if (vbus[CHG].mv != mv) { - CPRINTS("Missed CHG transition, resetting DUT"); - pd_power_supply_reset(DUT); - return; - } - - CPRINTS("CHG transitioned"); - } - - vbus[DUT].mv = vbus[CHG].mv; - vbus[DUT].ma = vbus[CHG].ma; -} - -int pd_set_power_supply_ready(int port) -{ - /* Port 0 can never provide vbus. */ - if (port == CHG) - return EC_ERROR_INVAL; - - if (charge_port_is_active()) { - /* Enable VBUS */ - gpio_set_level(GPIO_DUT_CHG_EN, 1); - - if (vbus[CHG].mv != PD_MIN_MV) - CPRINTS("ERROR, CHG port voltage %d != PD_MIN_MV", - vbus[CHG].mv); - - vbus[DUT].mv = vbus[CHG].mv; - vbus[DUT].ma = vbus[CHG].mv; - pd_set_dual_role(DUT, get_dual_role_of_src()); - } else { - vbus[DUT].mv = 0; - vbus[DUT].ma = 0; - gpio_set_level(GPIO_DUT_CHG_EN, 0); - pd_set_dual_role(DUT, PD_DRP_FORCE_SINK); - return EC_ERROR_NOT_POWERED; - } - - return EC_SUCCESS; /* we are ready */ -} - -void pd_power_supply_reset(int port) -{ - /* Port 0 can never provide vbus. */ - if (port == CHG) - return; - - /* Disable VBUS */ - gpio_set_level(GPIO_DUT_CHG_EN, 0); - - /* DUT is lost, back to 5V limit on CHG */ - pd_set_external_voltage_limit(CHG, PD_MIN_MV); -} - -int pd_snk_is_vbus_provided(int port) -{ - - return gpio_get_level(port ? GPIO_USB_DET_PP_DUT : - GPIO_USB_DET_PP_CHG); -} - -int pd_board_checks(void) -{ - return EC_SUCCESS; -} - -int pd_check_power_swap(int port) -{ - /* - * When only host VBUS is available, then servo_v4 is not setting - * PDO_FIXED_EXTERNAL in the src_pdo sent to the DUT. When this bit is - * not set, the DUT will always attempt to swap its power role to - * SRC. Let servo_v4 have more control over its power role by always - * rejecting power swap requests from the DUT. - */ - - /* Port 0 can never provide vbus. */ - if (port == CHG) - return 0; - - if (pd_snk_is_vbus_provided(CHG)) - return 1; - - return 0; -} - -int pd_check_data_swap(int port, int data_role) -{ - /* - * Servo should allow data role swaps to let DUT see the USB hub, but - * doing it on CHG port is a waste as its data lines is unconnected. - */ - if (port == CHG) - return 0; - - return 1; -} - -void pd_execute_data_swap(int port, int data_role) -{ - /* - * TODO(b/137887386): Turn on the fastboot/DFU path when data swap to - * DFP? - */ -} - -void pd_check_pr_role(int port, int pr_role, int flags) -{ - /* - * Don't define any policy to initiate power role swap. - * - * CHG port is SNK only. DUT port requires a user to switch its - * role by commands. So don't do anything implicitly. - */ -} - -void pd_check_dr_role(int port, int dr_role, int flags) -{ - if (port == CHG) - return; - - /* If DFP, try to switch to UFP, to let DUT see the USB hub. */ - if ((flags & PD_FLAGS_PARTNER_DR_DATA) && dr_role == PD_ROLE_DFP) - pd_request_data_swap(port); -} - - -/* ----------------- Vendor Defined Messages ------------------ */ -const struct svdm_response svdm_rsp = { - .identity = NULL, - .svids = NULL, - .modes = NULL, -}; - -int pd_custom_vdm(int port, int cnt, uint32_t *payload, - uint32_t **rpayload) -{ - int cmd = PD_VDO_CMD(payload[0]); - - /* make sure we have some payload */ - if (cnt == 0) - return 0; - - switch (cmd) { - case VDO_CMD_VERSION: - /* guarantee last byte of payload is null character */ - *(payload + cnt - 1) = 0; - CPRINTF("ver: %s\n", (char *)(payload+1)); - break; - case VDO_CMD_CURRENT: - CPRINTF("Current: %dmA\n", payload[1]); - break; - } - - return 0; -} - - - -const struct svdm_amode_fx supported_modes[] = {}; -const int supported_modes_cnt = ARRAY_SIZE(supported_modes); - - -static void print_cc_mode(void) -{ - /* Get current CCD status */ - ccprintf("cc: %s\n", cc_config & CC_DETACH ? "off" : "on"); - ccprintf("dts mode: %s\n", cc_config & CC_DISABLE_DTS ? "off" : "on"); - ccprintf("chg mode: %s\n", - gpio_get_level(GPIO_DUT_CHG_EN) ? "on" : "off"); - ccprintf("chg allowed: %s\n", cc_config & CC_ALLOW_SRC ? "on" : "off"); - ccprintf("drp enabled: %s\n", cc_config & CC_ENABLE_DRP ? "on" : "off"); - ccprintf("cc polarity: %s\n", cc_config & CC_POLARITY ? "cc2" : - "cc1"); -} - - -static void do_cc(int cc_config_new) -{ - int chargeable; - int dualrole; - - if (cc_config_new != cc_config) { - if (!(cc_config & CC_DETACH)) { - /* Force detach */ - pd_power_supply_reset(DUT); - /* Always set to 0 here so both CC lines are changed */ - cc_config &= ~(CC_DISABLE_DTS & CC_ALLOW_SRC); - - /* Remove Rp/Rd on both CC lines */ - pd_comm_enable(DUT, 0); - pd_set_rp_rd(DUT, TYPEC_CC_RP, TYPEC_RP_RESERVED); - - /* - * If just changing mode (cc keeps enabled), give some - * time for DUT to detach, use tErrorRecovery. - */ - if (!(cc_config_new & CC_DETACH)) - usleep(PD_T_ERROR_RECOVERY); - } - - if ((cc_config & ~cc_config_new) & CC_DISABLE_DTS) { - /* DTS-disabled -> DTS-enabled */ - ccd_enable(1); - } else if ((cc_config_new & ~cc_config) & CC_DISABLE_DTS) { - /* DTS-enabled -> DTS-disabled */ - ccd_enable(0); - } - - /* Accept new cc_config value */ - cc_config = cc_config_new; - - if (!(cc_config & CC_DETACH)) { - /* Can we source? */ - chargeable = is_charge_through_allowed(); - dualrole = chargeable ? get_dual_role_of_src() : - PD_DRP_FORCE_SINK; - pd_set_dual_role(DUT, dualrole); - /* - * If force_source or force_sink role, explicitly set - * the Rp or Rd resistors on CC lines. - * - * If DRP role, don't set any CC pull resistor, the PD - * state machine will toggle and set the pull resistors - * when needed. - */ - if (dualrole != PD_DRP_TOGGLE_ON) - pd_set_host_mode(DUT, chargeable); - - /* - * For the normal lab use, emulating a sink has no PD - * comm, like a passive hub. For the PD FAFT use, we - * need to validate some PD behavior, so a flag - * CC_SNK_WITH_PD to force enabling PD comm. - */ - if (cc_config & CC_SNK_WITH_PD) - pd_comm_enable(DUT, 1); - else - pd_comm_enable(DUT, chargeable); - } - } -} - -static int command_cc(int argc, char **argv) -{ - int cc_config_new = cc_config; - - if (argc < 2) { - print_cc_mode(); - return EC_SUCCESS; - } - - if (!strcasecmp(argv[1], "off")) { - cc_config_new |= CC_DETACH; - } else if (!strcasecmp(argv[1], "on")) { - cc_config_new &= ~CC_DETACH; - } else { - cc_config_new &= ~CC_DETACH; - if (!strcasecmp(argv[1], "src")) - cc_config_new = CONFIG_SRC(cc_config_new); - else if (!strcasecmp(argv[1], "snk")) - cc_config_new = CONFIG_SNK(cc_config_new); - else if (!strcasecmp(argv[1], "pdsnk")) - cc_config_new = CONFIG_PDSNK(cc_config_new); - else if (!strcasecmp(argv[1], "drp")) - cc_config_new = CONFIG_DRP(cc_config_new); - else if (!strcasecmp(argv[1], "srcdts")) - cc_config_new = CONFIG_SRCDTS(cc_config_new); - else if (!strcasecmp(argv[1], "snkdts")) - cc_config_new = CONFIG_SNKDTS(cc_config_new); - else if (!strcasecmp(argv[1], "pdsnkdts")) - cc_config_new = CONFIG_PDSNKDTS(cc_config_new); - else if (!strcasecmp(argv[1], "drpdts")) - cc_config_new = CONFIG_DRPDTS(cc_config_new); - else - return EC_ERROR_PARAM2; - } - - if (!strcasecmp(argv[2], "cc1")) - cc_config_new &= ~CC_POLARITY; - else if (!strcasecmp(argv[2], "cc2")) - cc_config_new |= CC_POLARITY; - else if (argc >= 3) - return EC_ERROR_PARAM3; - - do_cc(cc_config_new); - print_cc_mode(); - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(cc, command_cc, - "[off|on|src|snk|pdsnk|drp|srcdts|snkdts|pdsnkdts|" - "drpdts] [cc1|cc2]", - "Servo_v4 DTS and CHG mode"); - -static void fake_disconnect_end(void) -{ - /* Reenable CC lines with previous dts and src modes */ - do_cc(cc_config & ~CC_DETACH); -} -DECLARE_DEFERRED(fake_disconnect_end); - -static void fake_disconnect_start(void) -{ - /* Disable CC lines */ - do_cc(cc_config | CC_DETACH); - - hook_call_deferred(&fake_disconnect_end_data, - fake_pd_disconnect_duration_us); -} -DECLARE_DEFERRED(fake_disconnect_start); - -static int cmd_fake_disconnect(int argc, char *argv[]) -{ - int delay_ms, duration_ms; - char *e; - - if (argc < 3) - return EC_ERROR_PARAM_COUNT; - - delay_ms = strtoi(argv[1], &e, 0); - if (*e || delay_ms < 0) - return EC_ERROR_PARAM1; - duration_ms = strtoi(argv[2], &e, 0); - if (*e || duration_ms < 0) - return EC_ERROR_PARAM2; - - /* Cancel any pending function calls */ - hook_call_deferred(&fake_disconnect_start_data, -1); - hook_call_deferred(&fake_disconnect_end_data, -1); - - fake_pd_disconnect_duration_us = duration_ms * MSEC; - hook_call_deferred(&fake_disconnect_start_data, delay_ms * MSEC); - - ccprintf("Fake disconnect for %d ms starting in %d ms.\n", - duration_ms, delay_ms); - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(fakedisconnect, cmd_fake_disconnect, - "<delay_ms> <duration_ms>", NULL); - -static int cmd_usbc_action(int argc, char *argv[]) -{ - if (argc != 2) - return EC_ERROR_PARAM_COUNT; - - if (!strcasecmp(argv[1], "5v")) { - do_cc(CONFIG_SRC(cc_config)); - user_limited_max_mv = 5000; - update_ports(); - } else if (!strcasecmp(argv[1], "12v")) { - do_cc(CONFIG_SRC(cc_config)); - user_limited_max_mv = 12000; - update_ports(); - } else if (!strcasecmp(argv[1], "20v")) { - do_cc(CONFIG_SRC(cc_config)); - user_limited_max_mv = 20000; - update_ports(); - } else if (!strcasecmp(argv[1], "dev")) { - /* Set the limit back to original */ - user_limited_max_mv = 20000; - do_cc(CONFIG_PDSNK(cc_config)); - } else if (!strcasecmp(argv[1], "pol0")) { - do_cc(cc_config & ~CC_POLARITY); - } else if (!strcasecmp(argv[1], "pol1")) { - do_cc(cc_config | CC_POLARITY); - } else if (!strcasecmp(argv[1], "drp")) { - /* Toggle the DRP state, compatible with Plankton. */ - do_cc(cc_config ^ CC_ENABLE_DRP); - CPRINTF("DRP = %d, host_mode = %d\n", - !!(cc_config & CC_ENABLE_DRP), - !!(cc_config & CC_ALLOW_SRC)); - } else { - return EC_ERROR_PARAM1; - } - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(usbc_action, cmd_usbc_action, - "5v|12v|20v|dev|pol0|pol1|drp", - "Set Servo v4 type-C port state"); |