diff options
Diffstat (limited to 'baseboard/brask/usb_pd_policy.c')
| -rw-r--r-- | baseboard/brask/usb_pd_policy.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/baseboard/brask/usb_pd_policy.c b/baseboard/brask/usb_pd_policy.c deleted file mode 100644 index 33de5ca5eb..0000000000 --- a/baseboard/brask/usb_pd_policy.c +++ /dev/null @@ -1,204 +0,0 @@ -/* 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. - */ - -/* Shared USB-C policy for Brask boards */ - -#include <stddef.h> -#include <stdint.h> - -#include "charge_manager.h" -#include "chipset.h" -#include "common.h" -#include "compile_time_macros.h" -#include "console.h" -#include "ec_commands.h" -#include "gpio.h" -#include "usbc_ppc.h" -#include "usb_mux.h" -#include "usb_pd.h" -#include "usb_pd.h" -#include "usb_pd_tbt.h" -#include "usb_pd_tcpm.h" -#include "usb_pd_vdo.h" -#include "util.h" - -#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) -#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) - -int pd_check_vconn_swap(int port) -{ - /* Only allow vconn swap after the PP5000_Z1 rail is enabled */ - return gpio_get_level(GPIO_SEQ_EC_DSW_PWROK); -} - -void pd_power_supply_reset(int port) -{ - int prev_en; - - prev_en = ppc_is_sourcing_vbus(port); - - /* Disable VBUS. */ - ppc_vbus_source_enable(port, 0); - - /* Enable discharge if we were previously sourcing 5V */ - if (prev_en) - pd_set_vbus_discharge(port, 1); - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); -} - -int pd_set_power_supply_ready(int port) -{ - int rv; - - /* Disable charging. */ - rv = ppc_vbus_sink_enable(port, 0); - if (rv) - return rv; - - pd_set_vbus_discharge(port, 0); - - /* Provide Vbus. */ - rv = ppc_vbus_source_enable(port, 1); - if (rv) - return rv; - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); - - return EC_SUCCESS; -} - -int board_vbus_source_enabled(int port) -{ - return ppc_is_sourcing_vbus(port); -} - -/* ----------------- Vendor Defined Messages ------------------ */ -/* Responses specifically for the enablement of TBT mode in the role of UFP */ - -#define OPOS_TBT 1 - -static const union tbt_mode_resp_device vdo_tbt_modes[1] = { - { - .tbt_alt_mode = 0x0001, - .tbt_adapter = TBT_ADAPTER_TBT3, - .intel_spec_b0 = 0, - .vendor_spec_b0 = 0, - .vendor_spec_b1 = 0, - } -}; - -static const uint32_t vdo_idh = VDO_IDH( - 1, /* Data caps as USB host */ - 0, /* Not a USB device */ - IDH_PTYPE_PERIPH, - 1, /* Supports alt modes */ - USB_VID_GOOGLE); - -static const uint32_t vdo_idh_rev30 = VDO_IDH_REV30( - 1, /* Data caps as USB host */ - 0, /* Not a USB device */ - IDH_PTYPE_PERIPH, - 1, /* Supports alt modes */ - IDH_PTYPE_DFP_HOST, - USB_TYPEC_RECEPTACLE, - USB_VID_GOOGLE); - -static const uint32_t vdo_product = VDO_PRODUCT(CONFIG_USB_PID, - CONFIG_USB_BCD_DEV); - -/* TODO(b/168890624): add USB4 to capability once USB4 response implemented */ -static const uint32_t vdo_ufp1 = VDO_UFP1( - (VDO_UFP1_CAPABILITY_USB20 - | VDO_UFP1_CAPABILITY_USB32), - USB_TYPEC_RECEPTACLE, - VDO_UFP1_ALT_MODE_TBT3, - USB_R30_SS_U40_GEN3); - -static const uint32_t vdo_dfp = VDO_DFP( - (VDO_DFP_HOST_CAPABILITY_USB20 - | VDO_DFP_HOST_CAPABILITY_USB32 - | VDO_DFP_HOST_CAPABILITY_USB4), - USB_TYPEC_RECEPTACLE, - 1 /* Port 1 */); - -static int svdm_tbt_compat_response_identity(int port, uint32_t *payload) -{ - /* TODO(b/154962766): Get an XID */ - payload[VDO_I(CSTAT)] = VDO_CSTAT(0); - payload[VDO_I(PRODUCT)] = vdo_product; - - if (pd_get_rev(port, TCPCI_MSG_SOP) == PD_REV30) { - /* PD Revision 3.0 */ - payload[VDO_I(IDH)] = vdo_idh_rev30; - payload[VDO_I(PTYPE_UFP1_VDO)] = vdo_ufp1; - /* TODO(b/181620145): Customize for brya */ - payload[VDO_I(PTYPE_UFP2_VDO)] = 0; - payload[VDO_I(PTYPE_DFP_VDO)] = vdo_dfp; - return VDO_I(PTYPE_DFP_VDO) + 1; - } - - /* PD Revision 2.0 */ - payload[VDO_I(IDH)] = vdo_idh; - return VDO_I(PRODUCT) + 1; -} - -static int svdm_tbt_compat_response_svids(int port, uint32_t *payload) -{ - payload[1] = VDO_SVID(USB_VID_INTEL, 0); - return 2; -} - -static int svdm_tbt_compat_response_modes(int port, uint32_t *payload) -{ - if (PD_VDO_VID(payload[0]) == USB_VID_INTEL) { - memcpy(payload + 1, vdo_tbt_modes, sizeof(vdo_tbt_modes)); - return ARRAY_SIZE(vdo_tbt_modes) + 1; - } else { - return 0; /* NAK */ - } -} - -static int svdm_tbt_compat_response_enter_mode( - int port, uint32_t *payload) -{ - mux_state_t mux_state = 0; - - /* Do not enter mode while CPU is off. */ - if (chipset_in_or_transitioning_to_state(CHIPSET_STATE_ANY_OFF)) - return 0; /* NAK */ - - if ((PD_VDO_VID(payload[0]) != USB_VID_INTEL) || - (PD_VDO_OPOS(payload[0]) != OPOS_TBT)) - return 0; /* NAK */ - - mux_state = usb_mux_get(port); - /* - * Ref: USB PD 3.0 Spec figure 6-21 Successful Enter Mode sequence - * UFP (responder) should be in USB mode or safe mode before sending - * Enter Mode Command response. - */ - if ((mux_state & USB_PD_MUX_USB_ENABLED) || - (mux_state & USB_PD_MUX_SAFE_MODE)) { - pd_ufp_set_enter_mode(port, payload); - set_tbt_compat_mode_ready(port); - CPRINTS("UFP Enter TBT mode"); - return 1; /* ACK */ - } - - CPRINTS("UFP failed to enter TBT mode(mux=0x%x)", mux_state); - return 0; -} - -const struct svdm_response svdm_rsp = { - .identity = &svdm_tbt_compat_response_identity, - .svids = &svdm_tbt_compat_response_svids, - .modes = &svdm_tbt_compat_response_modes, - .enter_mode = &svdm_tbt_compat_response_enter_mode, - .amode = NULL, - .exit_mode = NULL, -}; |