diff options
Diffstat (limited to 'include/usb_pd_tcpm.h')
| -rw-r--r-- | include/usb_pd_tcpm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/usb_pd_tcpm.h b/include/usb_pd_tcpm.h index 0a824cc657..2a9778c3dd 100644 --- a/include/usb_pd_tcpm.h +++ b/include/usb_pd_tcpm.h @@ -100,6 +100,14 @@ static inline int cc_is_at_least_one_rd(int cc1, int cc2) return cc1 == TYPEC_CC_VOLT_RD || cc2 == TYPEC_CC_VOLT_RD; } +/** + * Returns true if the port partner is presenting Rd on only one CC line. + */ +static inline int cc_is_only_one_rd(int cc1, int cc2) +{ + return cc_is_at_least_one_rd(cc1, cc2) && cc1 != cc2; +} + struct tcpm_drv { /** * Initialize TCPM driver and wait for TCPC readiness. |