diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/usb_pd.h | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/include/usb_pd.h b/include/usb_pd.h index 045322c80d..b7c41c7b93 100644 --- a/include/usb_pd.h +++ b/include/usb_pd.h @@ -678,33 +678,34 @@ enum pd_data_msg_type { /* --- Policy layer functions --- */ +/* Request types for pd_build_request() */ +enum pd_request_type { + PD_REQUEST_VSAFE5V, + PD_REQUEST_MAX, +}; + /** - * Decide which voltage to use from the source capabilities - prefer the - * mode which delivers the maximum allowable power. + * Decide which PDO to choose from the source capabilities. * * @param cnt the number of Power Data Objects. * @param src_caps Power Data Objects representing the source capabilities. * @param rdo requested Request Data Object. - * @param curr_limit selected current limit (stored on success) - * @param supply_voltage selected supply voltage (stored on success) + * @param ma selected current limit (stored on success) + * @param mv selected supply voltage (stored on success) + * @param req_type request type * @return <0 if invalid, else EC_SUCCESS */ -int pd_choose_voltage(int cnt, uint32_t *src_caps, uint32_t *rdo, - uint32_t *curr_limit, uint32_t *supply_voltage); +int pd_build_request(int cnt, uint32_t *src_caps, uint32_t *rdo, + uint32_t *ma, uint32_t *mv, enum pd_request_type req_type); /** - * Decide which voltage to use from the source capabilities - prefer the - * mode which delivers the minimum allowable power. + * Process source capabilities packet * + * @param port USB-C port number * @param cnt the number of Power Data Objects. * @param src_caps Power Data Objects representing the source capabilities. - * @param rdo requested Request Data Object. - * @param curr_limit selected current limit (stored on success) - * @param supply_voltage selected supply voltage (stored on success) - * @return <0 if invalid, else EC_SUCCESS */ -int pd_choose_voltage_min(int cnt, uint32_t *src_caps, uint32_t *rdo, - uint32_t *curr_limit, uint32_t *supply_voltage); +void pd_process_source_cap(int port, int cnt, uint32_t *src_caps); /** * Put a cap on the max voltage requested as a sink. @@ -713,6 +714,12 @@ int pd_choose_voltage_min(int cnt, uint32_t *src_caps, uint32_t *rdo, void pd_set_max_voltage(unsigned mv); /** + * Get the max voltage that can be requested as set by pd_set_max_voltage(). + * @return max voltage + */ +unsigned pd_get_max_voltage(void); + +/** * Request a new operating voltage. * * @param rdo Request Data Object with the selected operating point. |