diff options
Diffstat (limited to 'baseboard/volteer/usb_pd_policy.c')
-rw-r--r-- | baseboard/volteer/usb_pd_policy.c | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/baseboard/volteer/usb_pd_policy.c b/baseboard/volteer/usb_pd_policy.c deleted file mode 100644 index 3d01f37e4e..0000000000 --- a/baseboard/volteer/usb_pd_policy.c +++ /dev/null @@ -1,375 +0,0 @@ -/* Copyright 2019 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 Volteer boards */ -#include "charge_manager.h" -#include "compile_time_macros.h" -#include "console.h" -#include "gpio.h" -#include "usb_mux.h" -#include "usbc_ppc.h" -#include "usb_pd.h" -#include "system.h" - -#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) -#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) - -/* - * TODO(b/140578872): Whole file copied from zork. Figure out correct values for - * volteer. - */ -#define PDO_FIXED_FLAGS (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |\ - PDO_FIXED_COMM_CAP) -const uint32_t pd_src_pdo[] = { - PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS), -}; -const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo); - -const uint32_t pd_src_pdo_max[] = { - PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS), -}; -const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max); - -const uint32_t pd_snk_pdo[] = { - PDO_FIXED(5000, 500, PDO_FIXED_FLAGS), - PDO_BATT(4750, 21000, 15000), - PDO_VAR(4750, 21000, 3000), -}; -const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo); - -int pd_check_data_swap(int port, int data_role) -{ - /* Allow data swap if we are a UFP, otherwise don't allow. */ - return (data_role == PD_ROLE_UFP); -} - -int pd_check_power_swap(int port) -{ - /* - * Allow power swap if we are acting as a dual role device. If we are - * not acting as dual role (ex. suspended), then only allow power swap - * if we are sourcing when we could be sinking. - */ - return (pd_get_dual_role(port) == PD_DRP_TOGGLE_ON || - pd_get_role(port) == PD_ROLE_SOURCE); -} - -int pd_check_vconn_swap(int port) -{ - /* Only allow vconn swap if pp5000_A rail is enabled */ - return gpio_get_level(GPIO_EN_PP5000_A); -} - -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); - -#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT - /* Give back the current quota we are no longer using */ - charge_manager_source_port(port, 0); -#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */ - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); -} - -void pd_execute_data_swap(int port, int data_role) -{ - /* TODO - check correct operation for Volteer */ - - /* Do nothing */ -} - -int pd_is_valid_input_voltage(int mv) -{ - /* TODO - check correct operation for Volteer */ - - return 1; -} - -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; - -#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT - /* Ensure we advertise the proper available current quota */ - charge_manager_source_port(port, 1); -#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */ - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); - - return EC_SUCCESS; -} - -void pd_transition_voltage(int idx) -{ - /* TODO - check correct operation for Volteer */ - - /* No-operation: we are always 5V */ -} - -int pd_snk_is_vbus_provided(int port) -{ - return ppc_is_vbus_present(port); -} - -void typec_set_source_current_limit(int port, enum tcpc_rp_value rp) -{ - ppc_set_vbus_source_current_limit(port, rp); -} - -int board_vbus_source_enabled(int port) -{ - return ppc_is_sourcing_vbus(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) -{ - /* TODO - check correct operation for Volteer */ - - int cmd = PD_VDO_CMD(payload[0]); - uint16_t dev_id = 0; - int is_rw, is_latest; - - /* 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("version: %s\n", (char *)(payload+1)); - break; - case VDO_CMD_READ_INFO: - case VDO_CMD_SEND_INFO: - /* copy hash */ - if (cnt == 7) { - dev_id = VDO_INFO_HW_DEV_ID(payload[6]); - is_rw = VDO_INFO_IS_RW(payload[6]); - - is_latest = pd_dev_store_rw_hash(port, - dev_id, - payload + 1, - is_rw ? - SYSTEM_IMAGE_RW : - SYSTEM_IMAGE_RO); - /* - * Send update host event unless our RW hash is - * already known to be the latest update RW. - */ - if (!is_rw || !is_latest) - pd_send_host_event(PD_EVENT_UPDATE_DEVICE); - - CPRINTF("DevId:%d.%d SW:%d RW:%d\n", - HW_DEV_ID_MAJ(dev_id), - HW_DEV_ID_MIN(dev_id), - VDO_INFO_SW_DBG_VER(payload[6]), - is_rw); - } else if (cnt == 6) { - /* really old devices don't have last byte */ - pd_dev_store_rw_hash(port, dev_id, payload + 1, - SYSTEM_IMAGE_UNKNOWN); - } - break; - case VDO_CMD_CURRENT: - CPRINTF("Current: %dmA\n", payload[1]); - break; - case VDO_CMD_FLIP: - usb_mux_flip(port); - break; -#ifdef CONFIG_USB_PD_LOGGING - case VDO_CMD_GET_LOG: - pd_log_recv_vdm(port, cnt, payload); - break; -#endif /* CONFIG_USB_PD_LOGGING */ - } - - return 0; -} - -/* CONFIG_USB_PD_ALT_MODE_DFP */ -static int dp_flags[CONFIG_USB_PD_PORT_MAX_COUNT]; -static uint32_t dp_status[CONFIG_USB_PD_PORT_MAX_COUNT]; - -static void svdm_safe_dp_mode(int port) -{ - /* make DP interface safe until configure */ - dp_flags[port] = 0; - dp_status[port] = 0; - - usb_mux_set(port, TYPEC_MUX_SAFE, - USB_SWITCH_CONNECT, pd_get_polarity(port)); -} - -static int svdm_enter_dp_mode(int port, uint32_t mode_caps) -{ - /* Only enter mode if device is DFP_D capable */ - if (mode_caps & MODE_DP_SNK) { - svdm_safe_dp_mode(port); - return 0; - } - - return -1; -} - -static int svdm_dp_status(int port, uint32_t *payload) -{ - int opos = pd_alt_mode(port, USB_SID_DISPLAYPORT); - - payload[0] = VDO(USB_SID_DISPLAYPORT, 1, - CMD_DP_STATUS | VDO_OPOS(opos)); - payload[1] = VDO_DP_STATUS(0, /* HPD IRQ ... not applicable */ - 0, /* HPD level ... not applicable */ - 0, /* exit DP? ... no */ - 0, /* usb mode? ... no */ - 0, /* multi-function ... no */ - (!!(dp_flags[port] & DP_FLAGS_DP_ON)), - 0, /* power low? ... no */ - (!!(dp_flags[port] & DP_FLAGS_DP_ON))); - return 2; -}; - -uint8_t board_get_dp_pin_mode(int port) -{ - return (uint8_t) pd_dfp_dp_get_pin_mode(port, dp_status[port]); -} - -static int svdm_dp_config(int port, uint32_t *payload) -{ - int opos = pd_alt_mode(port, USB_SID_DISPLAYPORT); - int mf_pref = PD_VDO_DPSTS_MF_PREF(dp_status[port]); - uint8_t pin_mode = board_get_dp_pin_mode(port); - - if (!pin_mode) - return 0; - - usb_mux_set(port, mf_pref ? TYPEC_MUX_DOCK : TYPEC_MUX_DP, - USB_SWITCH_CONNECT, pd_get_polarity(port)); - - payload[0] = VDO(USB_SID_DISPLAYPORT, 1, - CMD_DP_CONFIG | VDO_OPOS(opos)); - payload[1] = VDO_DP_CFG(pin_mode, /* pin mode */ - 1, /* DPv1.3 signaling */ - 2); /* UFP connected */ - return 2; -}; - -static void svdm_dp_post_config(int port) -{ - const struct usb_mux *mux = &usb_muxes[port]; - - dp_flags[port] |= DP_FLAGS_DP_ON; - if (!(dp_flags[port] & DP_FLAGS_HPD_HI_PENDING)) - return; - mux->hpd_update(port, 1, 0); -} - -static int svdm_dp_attention(int port, uint32_t *payload) -{ - int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]); - int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]); - const struct usb_mux *mux = &usb_muxes[port]; - - dp_status[port] = payload[1]; - if (!(dp_flags[port] & DP_FLAGS_DP_ON)) { - if (lvl) - dp_flags[port] |= DP_FLAGS_HPD_HI_PENDING; - return 1; - } - mux->hpd_update(port, lvl, irq); - - /* ack */ - return 1; -} - -static void svdm_exit_dp_mode(int port) -{ - const struct usb_mux *mux = &usb_muxes[port]; - - svdm_safe_dp_mode(port); - mux->hpd_update(port, 0, 0); -} - -static int svdm_enter_gfu_mode(int port, uint32_t mode_caps) -{ - /* Always enter GFU mode */ - return 0; -} - -static void svdm_exit_gfu_mode(int port) -{ -} - -static int svdm_gfu_status(int port, uint32_t *payload) -{ - /* - * This is called after enter mode is successful, send unstructured - * VDM to read info. - */ - pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_READ_INFO, NULL, 0); - return 0; -} - -static int svdm_gfu_config(int port, uint32_t *payload) -{ - return 0; -} - -static int svdm_gfu_attention(int port, uint32_t *payload) -{ - return 0; -} - -const struct svdm_amode_fx supported_modes[] = { - { - .svid = USB_SID_DISPLAYPORT, - .enter = &svdm_enter_dp_mode, - .status = &svdm_dp_status, - .config = &svdm_dp_config, - .post_config = &svdm_dp_post_config, - .attention = &svdm_dp_attention, - .exit = &svdm_exit_dp_mode, - }, - { - .svid = USB_VID_GOOGLE, - .enter = &svdm_enter_gfu_mode, - .status = &svdm_gfu_status, - .config = &svdm_gfu_config, - .attention = &svdm_gfu_attention, - .exit = &svdm_exit_gfu_mode, - } -}; -const int supported_modes_cnt = ARRAY_SIZE(supported_modes); |