diff options
Diffstat (limited to 'baseboard/volteer/usb_pd_policy.c')
| -rw-r--r-- | baseboard/volteer/usb_pd_policy.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/baseboard/volteer/usb_pd_policy.c b/baseboard/volteer/usb_pd_policy.c index 3d01f37e4e..4c543a1efd 100644 --- a/baseboard/volteer/usb_pd_policy.c +++ b/baseboard/volteer/usb_pd_policy.c @@ -38,6 +38,42 @@ const uint32_t pd_snk_pdo[] = { }; const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo); +#ifndef CONFIG_USB_SM_FRAMEWORK +int pd_board_checks(void) +{ + return EC_SUCCESS; +} + +void pd_check_dr_role(int port, int dr_role, int flags) +{ + /* If UFP, try to switch to DFP */ + if ((flags & PD_FLAGS_PARTNER_DR_DATA) && + dr_role == PD_ROLE_UFP) + pd_request_data_swap(port); +} + +void pd_check_pr_role(int port, int pr_role, int flags) +{ + /* + * If partner is dual-role power and dualrole toggling is on, consider + * if a power swap is necessary. + */ + if ((flags & PD_FLAGS_PARTNER_DR_POWER) && + pd_get_dual_role(port) == PD_DRP_TOGGLE_ON) { + /* + * If we are a sink and partner is not externally powered, then + * swap to become a source. If we are source and partner is + * externally powered, swap to become a sink. + */ + int partner_extpower = flags & PD_FLAGS_PARTNER_EXTPOWER; + + if ((!partner_extpower && pr_role == PD_ROLE_SINK) || + (partner_extpower && pr_role == PD_ROLE_SOURCE)) + pd_request_power_swap(port); + } +} +#endif + int pd_check_data_swap(int port, int data_role) { /* Allow data swap if we are a UFP, otherwise don't allow. */ |