To interact with WFx, the host has access to a set of API which are exposed both in the split MAC case and in the full MAC case. To find the related driver functions, see the table below or GENERAL_API group.

General API Commands

Commands	Command ID	Associated driver function	Description
SL_WFX_CONFIGURATION	0x09	sl_wfx_send_configuration()	Configure the device through the Platform Data Set
SL_WFX_CONTROL_GPIO	0x26	sl_wfx_control_gpio()	Control a GPIO of the WFx
SL_WFX_SET_SL_MAC_KEY	0x27	sl_wfx_secure_link_set_mac_key()	Set the Secure Link MAC Key
SL_WFX_SECURELINK_EXCHANGE_PUB_KEYS	0x28	sl_wfx_secure_link_exchange_keys()	Exchange Secure Link public keys.
SL_WFX_SECURELINK_CONFIGURE	0x29	sl_wfx_secure_link_configure()	Modify Secure Link configuration
SL_WFX_PREVENT_ROLLBACK	0x2a	sl_wfx_prevent_rollback()	Activate the prevent rollback feature. The chip will not boot on an older version of the firmware
SL_WFX_PTA_SETTINGS	0x2b	sl_wfx_pta_settings()	Configure the PTA settings (required before sending a SL_WFX_PTA_STATE command)
SL_WFX_PTA_PRIORITY	0x2c	sl_wfx_pta_priority()	Configure the PTA priority
SL_WFX_PTA_STATE	0x2d	sl_wfx_pta_state()	Set the PTA state (on/off)
SL_WFX_SET_CCA_CONFIG_REQ_ID	0x2e	sl_wfx_set_cca_config()	Configure the CCA mode
SL_WFX_SHUT_DOWN	0x32	sl_wfx_shutdown()	Send a request to shut down the internal power supplies

For each available command, there is an associated confirmation with the same ID value.

General API Indications

Indications	Indication ID	Associated structure	Description
SL_WFX_EXCEPTION_IND	0xe0	sl_wfx_exception_ind_body_t	Exception
SL_WFX_STARTUP_IND	0xe1	sl_wfx_startup_ind_body_t	Startup indication
SL_WFX_WAKEUP_IND_ID	0xe2		Wake-up indication
SL_WFX_GENERIC_IND	0xe3	sl_wfx_generic_ind_body_t	Generic status
SL_WFX_ERROR_IND_ID	0xe4	sl_wfx_error_ind_body_t	Error indication
SL_WFX_SECURELINK_EXCHANGE_PUB_KEYS_IND_ID	0xe5	sl_wfx_securelink_exchange_pub_keys_ind_body_t

These indications have to be managed by the host depending on the application and use case.