diff options
Diffstat (limited to 'include/usb_tc_sm.h')
| -rw-r--r-- | include/usb_tc_sm.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/include/usb_tc_sm.h b/include/usb_tc_sm.h index c46f449e44..38fbe270a0 100644 --- a/include/usb_tc_sm.h +++ b/include/usb_tc_sm.h @@ -32,6 +32,22 @@ #define TYPE_C_AUDIO_ACC_CURRENT 500 /* mA */ /** + * Returns true if TypeC State machine is in attached source state. + * + * @param port USB-C port number + * @return 1 if in attached source state, else 0 + */ +int tc_is_attached_src(int port); + +/** + * Returns true if TypeC State machine is in attached sink state. + * + * @param port USB-C port number + * @return 1 if in attached source state, else 0 + */ +int tc_is_attached_snk(int port); + +/** * Get current data role * * @param port USB-C port number @@ -73,6 +89,14 @@ uint8_t tc_get_pd_enabled(int port); void tc_set_power_role(int port, int role); /** + * Set the data role + * + * @param port USB-C port number + * @param role data role + */ +void tc_set_data_role(int port, int role); + +/** * Sets the USB Mux depending on current data role * Mux is connected except when: * 1) PD is disconnected @@ -91,6 +115,51 @@ void set_usb_mux_with_current_data_role(int port); uint64_t tc_get_timeout(int port); /** + * Policy Engine informs the Type-C state machine if the port partner + * is dualrole power. + * + * @param port USB_C port number + * @param en 1 if port partner is dualrole power, else 0 + */ +void tc_partner_dr_power(int port, int en); + +/** + * Policy Engine informs the Type-C state machine if the port partner + * has external power + * + * @param port USB_C port number + * @param en 1 if port partner has external power, else 0 + */ +void tc_partner_extpower(int port, int en); + +/** + * Policy Engine informs the Type-C state machine if the port partner + * is USB comms. + * + * @param port USB_C port number + * @param en 1 if port partner is USB comms, else 0 + */ +void tc_partner_usb_comm(int port, int en); + +/** + * Policy Engine informs the Type-C state machine if the port partner + * is dualrole data. + * + * @param port USB_C port number + * @param en 1 if port partner is dualrole data, else 0 + */ +void tc_partner_dr_data(int port, int en); + +/** + * Policy Engine informs the Type-C state machine if the port partner + * had a previous pd connection + * + * @param port USB_C port number + * @param en 1 if port partner had a previous pd connection, else 0 + */ +void tc_pd_connection(int port, int en); + +/** * Set loop timeout value * * @param port USB-C port number @@ -99,6 +168,120 @@ uint64_t tc_get_timeout(int port); void tc_set_timeout(int port, uint64_t timeout); /** + * Initiates a Power Role Swap from Attached.SRC to Attached.SNK. This function + * has no effect if the current Type-C state is not Attached.SRC. + * + * @param port USB_C port number + */ +void tc_prs_src_snk_assert_rd(int port); + +/** + * Initiates a Power Role Swap from Attached.SNK to Attached.SRC. This function + * has no effect if the current Type-C state is not Attached.SNK. + * + * @param port USB_C port number + */ +void tc_prs_snk_src_assert_rp(int port); + +/** + * Informs the Type-C State Machine that a Power Role Swap is complete. + * This function is called from the Policy Engine. + * + * @param port USB_C port number + */ +void tc_pr_swap_complete(int port); + +/** + * Informs the Type-C State Machine that a Discover Identity is in progress. + * This function is called from the Policy Engine. + * + * @param port USB_C port number + */ +void tc_disc_ident_in_progress(int port); + +/** + * Informs the Type-C State Machine that a Discover Identity is complete. + * This function is called from the Policy Engine. + * + * @param port USB_C port number + */ +void tc_disc_ident_complete(int port); + +/** + * Instructs the Attached.SNK to stop drawing power. This function is called + * from the Policy Engine and only has effect if the current Type-C state + * Attached.SNK. + * + * @param port USB_C port number + */ +void tc_snk_power_off(int port); + +/** + * Instructs the Attached.SRC to stop supplying power. The function has + * no effect if the current Type-C state is not Attached.SRC. + * + * @param port USB_C port number + */ +void tc_src_power_off(int port); + +/** + * Instructs the Attached.SRC to start supplying power. The function has + * no effect if the current Type-C state is not Attached.SRC. + * + * @param port USB_C port number + */ +int tc_src_power_on(int port); + +/** + * Tests if a VCONN Swap is possible. + * + * @param port USB_C port number + * @return 1 if vconn swap is possible, else 0 + */ +int tc_check_vconn_swap(int port); + +#ifdef CONFIG_USBC_VCONN +/** + * Checks if VCONN is being sourced. + * + * @param port USB_C port number + * @return 1 if vconn is being sourced, 0 if it's not, and -1 if + * can't answer at this time. -1 is returned if the current + * Type-C state is not Attached.SRC or Attached.SNK. + */ +int tc_is_vconn_src(int port); + +/** + * Instructs the Attached.SRC or Attached.SNK to start sourcing VCONN. + * This function is called from the Policy Engine and only has effect + * if the current Type-C state Attached.SRC or Attached.SNK. + * + * @param port USB_C port number + */ +void pd_request_vconn_swap_on(int port); + +/** + * Instructs the Attached.SRC or Attached.SNK to stop sourcing VCONN. + * This function is called from the Policy Engine and only has effect + * if the current Type-C state Attached.SRC or Attached.SNK. + * + * @param port USB_C port number + */ +void pd_request_vconn_swap_off(int port); +#endif + + +/** + * Returns the polarity of a Sink. + * + * @param cc1 value of CC1 set by tcpm_get_cc + * @param cc2 value of CC2 set by tcpm_get_cc + * @return 0 if cc1 is connected, else 1 for cc2 + */ +enum pd_cc_polarity_type get_snk_polarity(enum tcpc_cc_voltage_status cc1, + enum tcpc_cc_voltage_status cc2); + +/** * Restarts the TCPC * * @param port USB-C port number @@ -138,7 +321,29 @@ void tc_event_check(int port, int evt); */ void tc_run(const int port); +/** + * Attempt to activate VCONN + * + * @param port USB-C port number + */ +void tc_vconn_on(int port); + +/** + * Start error recovery + * + * @param port USB-C port number + */ +void tc_start_error_recovery(int port); + +/** + * Hard Reset the TypeC port + * + * @param port USB-C port number + */ +void tc_hard_reset(int port); + #ifdef CONFIG_USB_TYPEC_CTVPD + /** * Resets the charge-through support timer. This can be * called many times but the support timer will only @@ -148,6 +353,12 @@ void tc_run(const int port); */ void tc_reset_support_timer(int port); +#else + +/** + * + */ +void tc_ctvpd_detected(int port); #endif /* CONFIG_USB_TYPEC_CTVPD */ #endif /* __CROS_EC_USB_TC_H */ |