Wi-Fi APIs#

rsi_driver_send_data#

int32_t rsi_driver_send_data (uint32_t sockID, uint8_t *buffer, uint32_t length, struct rsi_sockaddr *destAddr)

Send data packet. This is a blocking API.

Returns

• 0 - Success

• Negative Value - Failure

rsi_driver_process_recv_data#

int32_t rsi_driver_process_recv_data (rsi_pkt_t *pkt)

Process received data packet. This is a non-blocking API.

Returns

• 0 - Success

• Negative Value - Failure

rsi_nwk_register_callbacks#

int16_t rsi_nwk_register_callbacks (uint32_t callback_id, void(*callback_handler_ptr)(uint8_t command_type, uint32_t status, const uint8_t *buffer, const uint32_t length))

Register the callback. This is a non-blocking API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd) 1 - If call_back_id is greater than the maximum callbacks to register

prototypes of the callback functions#

Note

• Refer to Error Codes for the description of above error codes.

rsi_wlan_radio_init#

int32_t rsi_wlan_radio_init (void)

Initializes WLAN radio and supplicant parameters.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0x0021)

Note

• Precondition - rsi_wireless_init() API must be called before this API.

• rsi_wlan_radio_init() is used if user wants to configure any other parameters, which are supposed to be given before rsi_wlan_scan() or rsi_wlan_scan_async() API

rsi_wlan_filter_broadcast#

int32_t rsi_wlan_filter_broadcast (uint16_t beacon_drop_threshold, uint8_t filter_bcast_in_tim, uint8_t filter_bcast_tim_till_next_cmd)

Program the ignore threshold levels of the broadcast packet when station is in power save and is used to achieve low current consumption in standby associated mode. This is blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe, 0xfffffffd, 0xfffffffc, 0x0021)

rsi_check_state#

int32_t rsi_check_state (int32_t type)

Check if the WLAN is in IP Config state.

Returns

• 0 - Success: IP config state

• Negative value - Failure: -20 (0xffffffec) - Not in IP config state

rsi_sort_scan_results_array_based_on_rssi#

void rsi_sort_scan_results_array_based_on_rssi (struct wpa_scan_results_arr *scan_results_array)

Sort the scan results in the order of RSSI.

Returns

• Void

Note

• Precondition - rsi_wlan_scan_with_bitmap_options() API needs to be called before this API.

rsi_config_timeout#

int32_t rsi_config_timeout (uint32_t timeout_type, uint16_t timeout_value)

This API is used to set timeouts. This is a blocking API.

• rsi_wireless_init() API needs to be called before this API.

Note

• Packet is sent as Wlan Keep alive before rsi_config_ipaddress() After rsi_config_ipaddress() it is sent as gratuitous ARP.

Returns

• 0 - Success Non-Zero Value - Failure

send_timeout#

int32_t send_timeout (uint32_t timeout_bitmap, uint16_t timeout_value)

This API is used to set timeouts. This is a blocking API.

• rsi_wireless_init() API needs to be called before this API.

Note

• Packet is sent as Wlan Keep alive before rsi_config_ipaddress() After rsi_config_ipaddress() it is sent as gratuitous ARP.

Returns

• 0 - Success Non-Zero Value - Failure

rsi_wlan_scan_with_bitmap_options#

int32_t rsi_wlan_scan_with_bitmap_options (int8_t *ssid, uint8_t chno, rsi_rsp_scan_t *result, uint32_t length, uint32_t scan_bitmap)

Scan surrounding access points and post scan response. You can call this API to get the scan results. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

rsi_wlan_scan_async_with_bitmap_options#

int32_t rsi_wlan_scan_async_with_bitmap_options (int8_t *ssid, uint8_t chno, uint32_t bitmap, void(*scan_response_handler)(uint16_t status, const uint8_t *buffer, const uint16_t length))

Scan available access points and post scan response to application. Application must call this API to get the scan results. This is a non-blocking API.

• rsi_wireless_init() API needs to be called before this API.

Returns

• 0 - Success Non-Zero Value - Failure

rsi_wlan_scan#

int32_t rsi_wlan_scan (int8_t *ssid, uint8_t chno, rsi_rsp_scan_t *result, uint32_t length)

Scan the surrounding access points. Invokes rsi_wlan_scan_async() API, which is an asynchronous call. This is a blocking API.

• rsi_wireless_init() API needs to be called before this API.

Channels supported in 2.4 GHz Band#

Channels supported in 5 GHz Band#

DFS Channels supported in 5 GHz Band#

Channels supported in 4.9 GHz Band#

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0002, 0x0003, 0x0005, 0x000A, 0x0014, 0x0015, 0x001A, 0x0021,0x0024,0x0025,0x0026,0x002C,0x003c)

Scan Info structure#

^ 0 : Open ^ 1 : WPA ^ 2 : WPA2 ^ 3 : WEP ^ 4 : WPA Enterprise ^ 5 : WPA2 Enterprise ^ 6 : WPA3 rssi_val | RSSI value of the Access Point network_type | This is the type of the network ^ 1 : Infrastructure mode ssid | SSID of the access point bssid | MAC address of the access point Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

• To set various timeouts, user should change the following macros in rsi_wlan_config.h #define RSI_TIMEOUT_SUPPORT RSI_ENABLE #define RSI_TIMEOUT_BIT_MAP 2 #define RSI_TIMEOUT_VALUE 150 (This macro can be configured based on user requirement)

  timeout_bitmap	Description
  timeout_bitmap[0]	Set timeout for association and authentication request.timeout_value : timeout value in ms(default 300ms).
  timeout_bitmap[1]	Sets each channel active scan time in ms (default 100ms)
  timeout_bitmap[2]	Used for WLAN keep alive timeout(default value is 30s)
  timeout_bitmap[31-3]	Reserved

rsi_wlan_scan_async#

int32_t rsi_wlan_scan_async (int8_t *ssid, uint8_t chno, void(*scan_response_handler)(uint16_t status, const uint8_t *buffer, const uint16_t length))

Scan the surrounding access points. A scan response handler is registered with it to get the response for scan. This is a non-blocking API.

Channels supported in 2.4 GHz Band#

Channels supported in 5 GHz Band#

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0002, 0x0003, 0x0005, 0x000A, 0x0014, 0x0015, 0x001A, 0x0021,0x0024,0x0025,0x0026,0x002C,0x003c)

Scan Response structure format#

^ scan_count[0] Contains the scan count. ^ scan_count[3-1] are reserved. scan_info | Information about scanned Access points in rsi_scan_info_t structure.

Scan Info - rsi_scan_info_t structure#

^ 1 . WPA ^ 2 . WPA2 ^ 3 . WEP ^ 4 . WPA Enterprise ^ 5 . WPA2 Enterprise ^ 7 . WPA3 rssi_val | RSSI value of the Access Point network_type | Type of network ^ 1 . Infrastructure mode ssid | SSID of the access point bssid | MAC address of the access point Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• If status is Success , the argument buffer passed to scan_response_handler holds scan results in rsi_rsp_scan_t structure format.

• To set various timeouts, user should change the following macros in rsi_wlan_config.h #define RSI_TIMEOUT_SUPPORT RSI_ENABLE #define RSI_TIMEOUT_BIT_MAP 4 #define RSI_TIMEOUT_VALUE 300

rsi_wlan_connect#

int32_t rsi_wlan_connect (int8_t *ssid, rsi_security_mode_t sec_type, void *secret_key)

Connect to the specified Wi-Fi network. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0002,0x0003,0x0005,0x0008,0x0009,0x000A,0x000E,0x0014, 0x0015,0x0016,0x0019,0x001A,0x001E,0x0020,0x0021,0x0024,0x0025,0x0026,0x0028,0x0039,0x003C, 0x0044,0x0045,0x0046,0x0047,0x0048,0x0049,0xFFF8)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

• To set various timeouts, user should change the following macros in rsi_wlan_config.h #define RSI_TIMEOUT_SUPPORT RSI_ENABLE. #define RSI_TIMEOUT_BIT_MAP 4. #define RSI_TIMEOUT_VALUE 300.

  timeout_bitmap	Description
  timeout_bitmap[0]	Set timeout for association and authentication request.timeout_value : timeout value in ms(default 300ms).
  timeout_bitmap[1]	Sets each channel active scan time in ms (default 100ms)
  timeout_bitmap[2]	Used for WLAN keep alive timeout(default value is 30s)
  timeout_bitmap[31-3]	Reserved

• To set Rejoin parameters, user should configure the following macros in rsi_wlan_config.h

  Macro	Description
  RSI_REJOIN_PARAMS_SUPPORT	Enable to send rejoin parameters command during Wi-Fi client connection
  RSI_REJOIN_MAX_RETRY	Number of maximum rejoin retries by module
  note	If Max retries is 0 , retries infinity times
  RSI_REJOIN_SCAN_INTERVAL	Periodicity of rejoin attempt
  RSI_REJOIN_BEACON_MISSED_COUNT	Number of consecutive beacon misses after which modules goes to unconnected state
  RSI_REJOIN_FIRST_TIME_RETRY	ENABLE - Try to rejoin in the first attempt after join failure.

  DISABLE - Try to rejoin based on maximum rejoin retries configured.

• When RSI_REJOIN_PARAMS_SUPPORT is enabled in the rsi_wlan_config.h, the rejoin frame will be sent to the firmware after the scan is done.

• This API internally handles following commands based on wlan_cb state and sends the next command and finally sends the join command. Set MAC address, Band, Timeout, Init, Set region, WMM parameters, Scan, EAP config, WMM PS parameters, WPS method, Set WEP keys, Host PSK, Rejoin params, Join

• For example, after calling rsi_wireless_init(), wlan_cb state is updated to OPERMODE_DONE state. So when we call this API, it will execute band, init, scan and join commands.

• For example, after calling rsi_wlan_disconnect() or else after rejoin failure, wlan_cb state is updated to BAND_DONE state. So when we call this API, it will execute init, scan and join commands.

• For example, after calling rsi_wlan_scan()/ rsi_wlan_scan_with_bitmap_options() API, wlan_cb state is updated to SCAN_DONE state. So when we call this API, it will execute join command directly.

EAP configuration#

For EAP configuration below arguments are required and are congifured in rsi_wlan_config.h in enterprise_client applicaiton. • eap_method, inner_method, user_identity, password, okc, private_key_password • eap_method is 32 bytes and it can be any one of the following methods: TLS, TTLS, FAST, PEAP or LEAP, should be given as string in RSI_EAP_METHOD. • inner_method is 32 bytes, this field is valid only in TTLS/PEAP. In case of TTLS/PEAP supported inner methods are MSCHAP/MSCHAPV2. In case of TLS/FAST/LEAP this field is not valid and it should be fixed to MSCHAPV2. Here MSCHAP/MSCHAPV2 are given in RSI_EAP_INNER_METHOD. • user_identity is 64 bytes, this can be configured in USER_IDENTITY of rsi_eap_connectivity.c of enterprise_client application and this should be a string. • password is 128 bytes, this can be configured in PASSWORD of rsi_eap_connectivity.c of enterprise_client application and this should be a string. • okc is 4 bytes, This argument is used to enable or disable or select multiple features from user this value can be modified by OKC_VALUE macro.

• BIT[0] of OKC is used to enable or disable opportunistic key caching (OKC), –0 – disable –1 – enable – When this is enabled, module will use cached PMKID to get MSK(Master Session Key) which is need for generating PMK which is needed for 4-way handshake.

• BIT[1] of OKC is used to enable or disable CA certification for PEAP connection. –0 – CA certificate is not required. –1 – CA certificate is required.

• BIT[2-12] of OKC argument are used for Cipher list selection for EAP connection. All possible ciphers are listed below

  BIT position	Cipher selected
  2	DHE-RSA-AES256-SHA256
  3	DHE-RSA-AES128-SHA256
  4	DHE-RSA-AES256-SHA
  5	DHE-RSA-AES128-SHA
  6	AES256-SHA256
  7	AES128-SHA256
  8	AES256-SHA
  9	AES128-SHA
  10	RC4-SHA
  11	DES-CBC3-SHA
  12	RC4-MD5

• BIT[13-31] of OKC argument is reserved.

• When user sets BIT[1] and does not provide the CA certificate for PEAP connection then error is thrown. If user provides invalid CA certificate then also error is thrown. User can set either one or multiple bits from BIT[2-12] to provide the cipher's list. When user does not provide any value in OKC's BIT[2-12] then by default all the ciphers are selected. • private_key_password is 82 bytes,This is password for encrypted private key given to the module. Module will use this password during decryption of encrypted private key. password length must be 80 bytes or less. Should be configured in RSI_PRIVATE_KEY_PASSWORD.

Returns

• Success - RSI_SUCCESS Failure - Non-Zero Value

      `if return value is less than zero :\n
  

RSI_ERROR_INVALID_PARAM - Invalid parameters RSI_ERROR_COMMAND_GIVEN_IN_WRONG_STATE - Command given in wrong state RSI_ERROR_PKT_ALLOCATION_FAILURE - Buffer not available to serve the command `Other expected error code are : 0x0002,0x0003,0x0005,0x0008,0x0009,0x000A,0x000E,0x0014,0x0015,0x0016,0x0019,0x001A,0x001E,0x0020,0x0021,0x0024,0x0025,0x0026,0x0028,0x0039,0x003C,0x0044,0x0045,0x0046,0x0047,0x0048,0x0049,0xFFF8Note

• WPA3 STA supports both H2E and Hunting-and-pecking for WPA3 authentication. It picks authentication algorithm based on AP's capability. WPA3 STA supports PMKSA caching. If STA has valid PMKID (generated after first connection) with an AP it will trigger OPEN authentication for successive connection attempts. By default the lifetime for PMKSA entry is 12 hours. In WPA3 Personal Transition Mode if both WPA2 and WPA3 APs are available in scan results, STA will pick the AP which has strongest RSSI (it could be either WPA2 or WPA3). If connected WPA3 AP enables Transition Disable Indication, from that moment onwards STA in transistion mode will not try connections to WPA2 APs. This behavior will persist until reset of the STA.

• Refer to Error Codes section for the description of the above error codes Error Codes.

rsi_wlan_set_non_pref_chan#

int rsi_wlan_set_non_pref_chan (char *non_pref_chan)

Configure the non-preferred channels. This list is not related to the channels used for Wi-Fi scanning. Instead, it is used to inform the serving or candidate AP about the channels in which the STA does not want to operate or prefers not to operate. The AP uses this information when requesting a BSS transition for that specific STA. This API should be called after rsi_wlan_scan API once it has returned Success.This is a blocking API.

• rsi_wlan_scan() API needs to be called before this API.

Returns

• 0 - Success Non-Zero Value - Failure

rsi_wlan_connect_async#

int32_t rsi_wlan_connect_async (int8_t *ssid, rsi_security_mode_t sec_type, void *secret_key, void(*join_response_handler)(uint16_t status, const uint8_t *buffer, const uint16_t length))

Connect to the specified Wi-Fi network.A join response handler is registered to get the response for join.. This is a non-blocking API.

• rsi_wireless_init() API needs to be called before this API.

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

• The module gets a default IP of 192.168.100.76, if it becomes a Group Owner or Access Point in case of IPv4 and gets a default IP of 2001:db8:0:1:0:0:0:120 in case of IPv6.

• To set various timeouts, user should change the following macros in rsi_wlan_config.h #define RSI_TIMEOUT_SUPPORT RSI_ENABLE. #define RSI_TIMEOUT_BIT_MAP 4. #define RSI_TIMEOUT_VALUE 300.

  timeout_bitmap	Description
  timeout_bitmap[0]	Set timeout for association and authentication request.timeout_value : timeout value in ms(default 300ms).
  timeout_bitmap[1]	Sets each channel active scan time in ms (default 100ms)
  timeout_bitmap[2]	Used for WLAN keep alive timeout(default value is 30s)
  timeout_bitmap[31-3]	Reserved

• To set Rejoin parameters, user should configure the following macros in rsi_wlan_config.h

  Macro	Description
  RSI_REJOIN_PARAMS_SUPPORT	Enable to send rejoin parameters command during Wi-Fi client connection
  RSI_REJOIN_MAX_RETRY	Number of maximum rejoin retries by module
  note	If Max retries is 0 , retries infinity times
  RSI_REJOIN_SCAN_INTERVAL	Periodicity of rejoin attempt
  RSI_REJOIN_BEACON_MISSED_COUNT	Number of consecutive beacon misses after which modules goes to unconnected state
  RSI_REJOIN_FIRST_TIME_RETRY	ENABLE - Try to rejoin in the first attempt after join failure.

  DISABLE - Try to rejoin based on maximum rejoin retries configured.

• When RSI_REJOIN_PARAMS_SUPPORT is enabled in the rsi_wlan_config.h, the rejoin frame will be sent to the firmware after the scan is done.

• This API internally handles following commands based on wlan_cb state and sends the next command and finally sends the join command. Set MAC address, Band, Timeout, Init, Set region, WMM parameters, Scan, EAP config, WMM PS parameters, WPS method, Set WEP keys, Host PSK, Rejoin params, Join

• For example, after calling rsi_wireless_init(), wlan_cb state is updated to OPERMODE_DONE state. So when we call this API, it will execute band, init, scan and join commands.

• For example, after calling rsi_wlan_disconnect() or else after rejoin failure, wlan_cb state is updated to BAND_DONE state. So when we call this API, it will execute init, scan and join commands.

• For example, after calling rsi_wlan_scan()/ rsi_wlan_scan_with_bitmap_options() API, wlan_cb state is updated to SCAN_DONE state. So when we call this API, it will execute join command directly.

rsi_wlan_bgscan_profile#

int32_t rsi_wlan_bgscan_profile (uint8_t cmd, rsi_rsp_scan_t *result, uint32_t length)

Enable background scan and get the results or disable background scan. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd, 0xfffffffc)

Note

• Precondition - rsi_wlan_connect() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_execute_post_connect_cmds#

int32_t rsi_wlan_execute_post_connect_cmds (void)

Enable scan and roaming after connecting the module to the access point. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd,0xfffffffc,0x0006,0x0021,0x002C,0x004A,0x0025,0x0026)

Note

• Precondition - rsi_wlan_connect() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_wps_push_button_event#

int32_t rsi_wlan_wps_push_button_event (int8_t *ssid)

Start the WPS Push button in AP mode. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffc,0x0021)

Note

• Precondition - rsi_wlan_ap_start() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_send_freq_offset#

int32_t rsi_send_freq_offset (int32_t freq_offset_in_khz)

Application to provide feedback of frequency error in KHz. This is a blocking API.

Returns

• 0 - Success

Note

• Refer to Error Codes for the description of above error codes.

rsi_calib_write#

int32_t rsi_calib_write (uint8_t target, uint32_t flags, int8_t gain_offset_low, int8_t gain_offset_mid, int8_t gain_offset_high, uint8_t xo_ctune)

RF calibration process. This API will command the firmware to update the existing Flash/EFuse calibration data. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

Note

• The gain offset values present in the NVM will be incremented by the values sent from the host.

• Precondition - rsi_transmit_test_start(), rsi_send_freq_offset() API needs to be called before this API. This API is relevant in PER mode only.

• For RS9116 Rev 1.5, the user needs to calibrate gain-offset for low sub-band (channel-1), mid sub-band (channel-6), and high sub-band (channel-11) and input the three gain-offsets to this API and set the corresponding flags to validate it. However, for RS9116 Rev 1.4, the user needs to calibrate gain-offset for low sub-band (channel-1) only and input the three gain-offsets to this API with dummy values for mid and high gain offsets and set the flag for low gain offset only to validate it.

• Recalibration is not possible if EFuse is being used instead of flash as calibration data storage

rsi_calib_read#

int32_t rsi_calib_read (uint8_t target, rsi_calib_read_t *calib_data)

RF calibration process. This API reads the calibration data from the Flash/EFuse storage. This is a blocking API.

• rsi_wireless_init() needs to be called prior this API.

Returns

• 0 - Success Non-Zero Value - Failure

rsi_calibrate_dpd#

int32_t rsi_calibrate_dpd (uint8_t dpd_power_inx)

RF calibration process. This API will command the firmware to update the existing Flash/EFuse calibration data. This is a blocking API.

• rsi_transmit_test_start(), API needs to be called before this API.This API is relevant in PER mode only.

Returns

• 0 - Success Non-Zero Value - Failure

rsi_parse#

int16_t rsi_parse (void *address, uint16_t length, uint8_t *value)

Parse and convert the given value in ASCII to the datatype of a given length.. This is a non-blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

rsi_wlan_wps_generate_pin#

int32_t rsi_wlan_wps_generate_pin (uint8_t *wps_pin, uint16_t length)

Generate WPS pin. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffc,0x0021,0x002C,0x0025,0x0037,0x0038)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes section for the description of the above error codes Error Codes.

rsi_wlan_wps_enter_pin#

int32_t rsi_wlan_wps_enter_pin (int8_t *wps_pin)

Validate WPS pin entered. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

rsi_wlan_beacon_stop#

int32_t rsi_wlan_beacon_stop (uint8_t beacon_stop)

Configure whether the module in AP mode transmits beacons or not when no station is connected. The AP will beacon regardless of this configuration when stations are connected. This is a blocking API. .

Returns

• 0 - Success Non-Zero Value - Failure

rsi_get_random_bytes#

int32_t rsi_get_random_bytes (uint8_t *result, uint32_t length)

Get random bytes from the device. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

rsi_wlan_ap_stop#

int32_t rsi_wlan_ap_stop (void)

Disconnect the module from the connected access point. This is a blocking API.

Note

• Precondition - rsi_wlan_ap_start() API needs to be called before this API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd,0xfffffffc,0x0006,0x0021,0x002C,0x004A,0x0025,0x0026)

Note

• Refer to Error Codes for the description of above error codes.

rsi_wlan_disconnect#

int32_t rsi_wlan_disconnect (void)

Disconnect the module from the connected access point. This is a blocking API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd,0xfffffffc,0x0006,0x0021,0x002C,0x004A,0x0025,0x0026)

Note

• Precondition - rsi_wlan_connect() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_disconnect_stations#

int32_t rsi_wlan_disconnect_stations (uint8_t *mac_address)

Disconnect a connected station from the module in AP mode. This is a blocking API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffc,0x0013,0x0021,0x002C,0x0015)

Note

• Precondition - rsi_wlan_ap_start() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_config_ipaddress#

int32_t rsi_config_ipaddress (rsi_ip_version_t version, uint8_t mode, uint8_t *ip_addr, uint8_t *mask, uint8_t *gw, uint8_t *ipconfig_rsp, uint16_t length, uint8_t vap_id)

Configure the IP address to the module. This is a blocking API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa)

Note

• Precondition - rsi_wlan_connect() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_set_certificate_index#

int32_t rsi_wlan_set_certificate_index (uint8_t certificate_type, uint8_t cert_inx, uint8_t *buffer, uint32_t certificate_length)

Write or erase certificate into module. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0015,0x0021,0x0025,0x0026,0x002C)

Note

• Precondition - rsi_wireless_init() API must be called before this API.

• Index-based certificate loading is valid only for storing certificates on to RAM or flash but not both at the same time.

• Enable bit[27] in tcp_ip_feature_bit_map to load SSl certificate into RAM.

• Enable bit[31] in tcp_ip_feature_bit_map and bit[29] in ext_tcp_ip_feature_bit_map to open 3 SSL client sockets. Three SSL client sockets feature is supported only in WLAN mode.

rsi_wlan_set_certificate#

int32_t rsi_wlan_set_certificate (uint8_t certificate_type, uint8_t *buffer, uint32_t certificate_length)

Load SSL/EAP certificate in the module. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0015,0x0021,0x0025,0x0026,0x002C)

Note

• Precondition - rsi_wireless_init() API must be called before this API.

• Refer to Error Codes for the description of above error codes.

• For TLS Certificates, the max length is 12280 bytes and for the Private Keys, it is 4088 bytes. Module shares same TLS certificates for all supported SSL sockets.

• For enterprise, user can load certificates in two ways:

  • User can load a single certificate, for this user need to generate a single certificate which contains a combination of 4 certificates in a given fixed order(3 actual and 1 dummy)- one Private Key, one Public Key, one dummy, and one CA certificate. The CA certificate can include a chain of certificates. Make sure each certificate has their respective header and footer of --—BEGIN CERTIFICATE--— and --—END CERTIFICATE--—. The dummy certificate can be a copy of one of the certificates for convenience(but must have header and footer). The dummy certificate is not used for the authentication but is expected by the firmware. The single certificate can be loaded with CertType as 1. The maximum allowed single certificate length is 12280 bytes if webpages feature (TCP_IP_FEAT_HTTP_SERVER in tcp_ip_feature_bit_map) is enabled, otherwise it is 20472 bytes.

  • User can load individual EAP certificates private key, public key, and CA certificates with CertType as 17,33 and 49 respectively. The maximum certificate length for private key and public key is 4088 bytes. The maximum allowed CA certificate length is 4088 bytes if webpages feature (TCP_IP_FEAT_HTTP_SERVER in tcp_ip_feature_bit_map) is enabled, otherwise it is 12280 bytes.

rsi_wlan_get_status#

int32_t rsi_wlan_get_status (void)

Check the error code encountered during a call to a WLAN API or BSD sockets functions. This is a non-blocking API.

Returns

• Returns the error code that previously occurred. If no error occurred, returns 0.

Note

• Refer to Error Codes for the description of above error codes.

rsi_wlan_get#

int32_t rsi_wlan_get (rsi_wlan_query_cmd_t cmd_type, uint8_t *response, uint16_t length)

Get the required information based on the type of command. This is a blocking API.

Note

• RSI_WLAN_INFO is relevant in both station and AP mode.

• RSI_SOCKETS_INFO is relevant in both station mode and AP mode.

• RSI_STATIONS_INFO is relevant in AP mode

• RSI_GET_WLAN_STATS is relevant in AP and Station mode

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffd,0xfffffffc,0xfffffffa)

Note

• Precondition - rsi_wireless_init () API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_set#

int32_t rsi_wlan_set (rsi_wlan_set_cmd_t cmd_type, uint8_t *request, uint16_t length)

Request configuration based on the command type. This is a blocking API.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffc,0x0002, 0x0003, 0x0005, 0x000A, 0x0014, 0x0015, 0x001A, 0x0021,0x0024,0x0025,0x0026,0x002C,0x003c)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API. For setting MAC address, call this API immediately after rsi_wireless_init() and before calling any other API. rsi_config_ipaddress() needs to be call for RSI_CFG_SAVE and RSI_CFG_STORE.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_buffer_config#

int32_t rsi_wlan_buffer_config (void)

Configure the TX and RX global buffers ratio. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0021)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_ap_start#

int32_t rsi_wlan_ap_start (int8_t *ssid, uint8_t channel, rsi_security_mode_t security_type, rsi_encryption_mode_t encryption_mode, uint8_t *password, uint16_t beacon_interval, uint8_t dtim_period)

Start the module in access point mode with the given configuration. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• DFS channels are not supported in AP mode.

• For AP mode with WPA3 security, only SAE-H2E method is supported. SAE Hunting-and-Pecking method is not supported. TKIP encryption mode is not supported. Encryption mode is automatically configured to RSI_CCMP. PMKSA is not supported in WPA3 AP mode.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_power_save_with_listen_interval#

int32_t rsi_wlan_power_save_with_listen_interval (uint8_t psp_mode, uint8_t psp_type, uint16_t listen_interval)

Set the power save profile in WLAN mode with listen interval-based wakeup. This is a blocking API.

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• psp_type is only valid in psp_mode 1 and 2.

• psp_type: RSI_UAPSD is applicable only, if WMM_PS is enabled in rsi_wlan_config.h file.

• In RSI_MAX_PSP mode, Few access points will not aggregate the packets, when power save is enabled from STA. This may cause the drop in throughputs.

• For the power save mode 3, select RSI_SLEEP_MODE_2 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED in rsi_wlan_config.h file.

• For the power save mode 9, select RSI_SLEEP_MODE_8 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED in rsi_wlan_config.h file.

• For the deep sleep without ram retention case, select RSI_SLEEP_MODE_10 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED for msg_based or GPIO_BASED for gpio_based.

• For LP sleep, select RSI_SLEEP_MODE_2 in psp_mode, select RSI_SELECT_LP_OR_ULP_MODE as RSI_LP_MODE and RSI_HAND_SHAKE_TYPE as MSG_BASED/GPIO_BASED in rsi_wlan_config.h file.

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa)

Note

• Refer to Error Codes for the description of above error codes.

rsi_wlan_power_save_profile#

int32_t rsi_wlan_power_save_profile (uint8_t psp_mode, uint8_t psp_type)

Set the power save profile in WLAN mode. This is a blocking API.

Enhanced max psp#

Enhanced max PSP is recommended. This is essentially a RSI_MAX_PSP but switches to RSI_FAST_PSP, if AP does not deliver data within 20ms for PS-Poll. To enable this mode, follow this procedure: Add ENABLE_ENHANCED_MAX_PSP (BIT[26]) in RSI_CONFIG_FEATURE_BITMAP, Set psp_type to RSI_FAST_PSP (1) Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Configure the monitor interval using the RSI_MONITOR_INTERVAL macro in rsi_wlan_config.h file. (default value is 50 ms)

• psp_type is only valid in psp_mode 1 and 2.

• psp_type - UAPSD is applicable only if WMM_PS is enabled in rsi_wlan_config.h file.

• In RSI_MAX_PSP mode, Few Access points won't aggregate the packets, when power save is enabled from STA. This may cause the drop in throughputs.

• For the power save mode 3, select RSI_SLEEP_MODE_2 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED in rsi_wlan_config.h file.

• For the power save mode 9, select RSI_SLEEP_MODE_8 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED in rsi_wlan_config.h file.

• For the deep sleep without ram retention case, select RSI_SLEEP_MODE_10 in psp_mode and RSI_HAND_SHAKE_TYPE as MSG_BASED for msg_based or GPIO_BASED for gpio_based.

• For LP sleep, select RSI_SLEEP_MODE_2 in psp_mode, select RSI_SELECT_LP_OR_ULP_MODE as RSI_LP_MODE and RSI_HAND_SHAKE_TYPE as MSG_BASED/GPIO_BASED in rsi_wlan_config.h file.

• Powersave handshake option:

  • When sleep clock source is configured to '32KHz bypass clock on UULP_VBAT_GPIO_3', use UULP_VBAT_GPIO_0 for SLEEP_IND_FROM_DEV set RS9116_SILICON_CHIP_VER in 'RS9116.NB0.WC.GENR.OSI.X.X.X\host\sapis.h' to 'CHIP_VER_1P4_AND_ABOVE'

  • If not using external clock on UULP_VBAT_GPIO_3' as sleep clock source, use UULP_VBAT_GPIO_3 for SLEEP_IND_FROM_DEV set RS9116_SILICON_CHIP_VER in 'RS9116.NB0.WC.GENR.OSI.X.X.X\host\sapis.h' to 'CHIP_VER_1P3'. EXT_FEAT_LOW_POWER_MODE is not supported for 1.3 version chipset(CHIP_VER_1P3).

Power save modes description#

• Power Save Mode 0

  • In this mode, module is active and power save is disabled. It can be configured any time, while the module is configured in Power Save mode 2 or 8.

• Power save Mode 1

  • Once the module is configured to power save mode 1, it wakes up periodically based upon the DTIM interval configured in connected AP. In power mode 1, only the RF of the module is in power save while SOC continues to work normally. This command has to be given only when module is in connected state (with the AP). After having configured the module to power save mode, the Host can issue subsequent commands. In power save mode 1 the module can receive data from host at any point of time but it can send/receive the data to/from remote terminal only when it is awake at DTIM intervals.

• Power Save Mode 2

  • Once the module is configured to power save mode 2, it can be woken up either by the Host or periodically during its sleep-wakeup cycle. Power Save mode 2 is GPIO based. In case of GPIO based mode, whenever host wants to send data to module, it gives wakeup request by asserting UULP GPIO #2. After wakeup, if the module is ready for data transfer, it sends wakeup indication to host by asserting UULP GPIO #3 or UULP GPIO #0. Host is required to wait until module gives wakeup indication before sending any data to the module. After the completion of data transfer, host can give sleep permission to module by de-asserting UULP GPIO #2. After recognizing sleep permission from host, module gives confirmation to host by de-asserting UULP GPIO #3 or UULP GPIO #0 and again goes back to its sleep-wakeup cycle. Module can send received packets or responses to host at any instant of time. No handshake is required on Rx path.

• Power Save mode 3

  • Power Mode 3 is message based power save. In Power Mode 3, both radio and SOC of RS9116-WiSeConnect are in power save mode. This mode is significant when module is in associated state with AP. Module wakes up periodically upon every DTIM and gives wakeup message ("WKP") to host. Module can not be woken up asynchronously. Every time module intends to go to sleep it sends a sleep request message ("SLP") to the host and expects host to send the acknowledgement message ("ACK"). Host either send acknowledgement ("ACK") or any other pending message. But once ACK is sent, Host should not send any other message unless next wakeup message from module is received. Module shall not go into complete power-save state, if ACK is not received from host for given sleep message. Module can send received packets or responses to host at any instant of time. No handshake is required on Rx path.

• Power Save mode 8

  • In Power save mode 8, both RF and SOC of the module are in complete power save mode. This mode is significant only when module is in un-connected state. Power Save mode 8 can be GPIO based. In case of GPIO based, host can wakeup the module from power save by asserting UULP GPIO #2. After wakeup, if the module is ready for data transfer, it sends wakeup indication to host by asserting UULP GPIO #3 or UULP GPIO #0. Host is required to wait until module gives wakeup indication before sending any data to the module. After the completion of data transfer, host can give sleep permission to module by de-asserting UULP GPIO #2. After recognizing sleep permission from host, module gives confirmation to host by de-asserting UULP GPIO #3 or UULP GPIO #0 and again goes back to its sleep-wakeup cycle. Module can send received packets or responses to host at any instant of time. No handshake is required on Rx path.

• Power save mode 9

  • In Power Mode 9 both Radio and SOC of RS9116-WiSeConnect are in complete power save mode. This mode is significant when module is not connected with any AP. Once power mode 9 command is given, the module sends ("SLP") request to host and wait for the ("ACK") from host and goes to sleep when ACK is given by host. Timer starts when power save command is issued and it can be configured by host using rsi_wlan_set_sleep_timer API. If host does not set any sleep time, then the timer is configured for 3sec by default. Upon wakeup module sends a wakeup message to the host and expects host to give ACK before it goes into next sleep cycle. Host either send ACK or any other messages but once ACK is sent no other packet should be sent before receiving next wakeup message. When ulp_mode_enable is set to '2', after waking up from sleep, the module sends WKP FRM SLEEP message to host when RAM retention is not enabled. After receiving WKP FRM SLEEP message, host needs to start giving commands from beginning as module's state is not retained. Returns

    • 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0xfffffffa,0x0021,0x0025,0x002C,0xFFF8,0x0015,0x0026,0x0052)

    Note

    • If the user wants to enable power save in CoEx mode (WLAN + BT LE) mode - It is mandatory to enable WLAN power save along with BT power save.

    • In CoEx mode, the device will enter into power save only if both protocol (WLAN, BLE) power save modes are enabled.

    • Refer to Error Codes for the description of above error codes.

rsi_wlan_power_save_disable_and_enable#

int32_t rsi_wlan_power_save_disable_and_enable (uint8_t psp_mode, uint8_t psp_type)

Disable or enable the power save feature. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• If RSI_SLEEP_MODE_10 is chosen as the sleep mode, commands should be recalled from driver_init() as this is without RAM retention.

rsi_transmit_test_start#

int32_t rsi_transmit_test_start (uint16_t power, uint32_t rate, uint16_t length, uint16_t mode, uint16_t channel)

Start the transmit test. This is a blocking API. This API is relevant in PER mode.

Note

• User can configure the maximum power level allowed for the given frequncey in the configured region by providing 127 as power level

• User should configure a minimum delay (approx. 10 milliseconds) before and after rsi_transmit_test_start API to observe a stable output at requested dBm level.

Data Rates#

The following table maps the channel number to the actual radio frequency in the 2.4 GHz spectrum.#

Note

• To start transmit test in 12,13 channels, configure set region parameters in rsi_wlan_config.h

The following table maps the channel number to the actual radio frequency in the 5 GHz spectrum for 20MHz channel bandwidth. The channel numbers in 5 GHz range is from 36 to 165.#

Note

• Precondition - rsi_wlan_radio_init() API needs to be called before this API.

• Rate flags can be added in rsi_wlan_common_config.h file. In rate flags, BIT(6) - Immediate Transfer, set this bit to transfer packets immediately ignoring energy/traffic in channel

• Before starting Continuous Wave mode, user must start Continuous mode with power and channel values that are intended to be used in Continuous Wave mode i.e.

  • Start Continuous mode with intended power value and channel values - Pass any valid values for rate and length.

  • Stop Continuous mode

  • Start Continuous Wave mode

• If user wants to switch continuous wave mode, first need to stop the transmit test and again need to give continous wave mode which user wants to switch.

• In 2.4GHz, to start transmit test in 12,13,14 channels, configure set region parameters in rsi_wlan_config.h

Returns

• 0 - Success Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa,0x000A, 0x0021, 0x0025, 0x002C)

Note

• Refer to Error Codes for the description of above error codes.

rsi_transmit_test_stop#

int32_t rsi_transmit_test_stop (void)

Stops the transmit test. This is a blocking API. This API is relevant in PER mode.

Returns

• 0 - Success

• Non Zero Value - Failure (Possible Error Codes - 0xfffffffa,0x0021, 0x0025, 0x002C)

Note

• Precondition - rsi_wlan_radio_init() API needs to be called before this API.

• User should configure a minimum delay (approx. 10 milliseconds) before and after rsi_transmit_test_start API to observe a stable output at requested dBm level.

• Refer to Error Codes section for the description of the above error codes Error Codes.

rsi_wlan_receive_stats_start#

int32_t rsi_wlan_receive_stats_start (uint16_t channel)

Get the Transmit (TX) and Receive (RX) packets statistics. When this API is called by the host with valid channel number, the module gives the statistics to the host for every 1 second asynchronously. If wlan_receive_stats_response_handler() is registered through rsi_wlan_register_callbacks(), it's a non blocking API, otherwise, a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa,0x0021, 0x0025, 0x002c, 0x000A)

Note

• Precondition - rsi_wlan_radio_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_receive_stats_stop#

int32_t rsi_wlan_receive_stats_stop (void)

Stop the Transmit (TX) & Receive(RX) packets statistics. If wlan_receive_stats_response_handler() is registered through rsi_wlan_register_callbacks(), it's non blocking API, otherwise, a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa,0x0021, 0x0025, 0x002c)

Note

• Precondition - rsi_wlan_radio_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_send_data#

int32_t rsi_wlan_send_data (uint8_t *buffer, uint32_t length)

Send the raw data in TCP/IP bypass mode. This is a blocking API.

Returns

• 0 - Success Non-Zero Value - Failure If return value is less than 0 -2 - Invalid Parameters -4 - Buffer not available to serve the command If return value is greater than 0 0x0021,0x002C,0x0025

rsi_wlan_twt_auto_selection#

int32_t rsi_wlan_twt_auto_selection (uint8_t twt_enable, uint32_t rx_latency, uint32_t tx_latency, uint16_t avg_tx_throughput)

Calculates and configures TWT parameters based on the given inputs. Enables or disables a TWT session. This is blocking API.

• needs to be called after rsi_wireless_init() OPERMODE command.

Returns

• 0 - Success Non-Zero Value - Failure

Note

• Refer Error Codes section for above Error Codes .

rsi_wlan_twt_config#

int32_t rsi_wlan_twt_config (uint8_t twt_enable, uint8_t twt_flow_id, twt_user_params_t *twt_req_params)

Configures TWT parameters. Enables or disables a TWT session. This is blocking API.

• needs to be called after rsi_wireless_init() OPERMODE command.

Returns

• 0 - Success Non-Zero Value - Failure

Note

• Refer Error Codes section for above Error Codes .

rsi_wlan_ping_async#

int32_t rsi_wlan_ping_async (uint8_t flags, uint8_t *ip_address, uint16_t size, void(*wlan_ping_response_handler)(uint16_t status, const uint8_t *buffer, const uint16_t length))

Send a ping request to the target IP address. If wlan_ping_response_handler() is registered through rsi_wlan_register_callbacks(), it's non blocking API, otherwise, a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffa,0x0015,0xBB21,0xBB4B,0xBB55)

Note

• Precondition - rsi_config_ipaddress() API needs to be called before this API.

• The module can't receive ping packets whose length is more than 308 bytes.

• Refer to Error Codes for the description of above error codes.

rsi_register_auto_config_rsp_handler#

void rsi_register_auto_config_rsp_handler (void(*rsi_auto_config_rsp_handler)(uint16_t status, uint8_t state))

Register auto-configuration response handler.. This is a non-blocking API.

Returns

• Void

rsi_wlan_add_profile#

int32_t rsi_wlan_add_profile (uint32_t type, uint8_t *profile)

Add profile for auto configuration. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa)

Note

• This API is not supported in current release.

• Precondition - rsi_wireless_init() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_get_state#

uint8_t rsi_wlan_get_state (void)

Get the current WLAN state.. This is a non-blocking API.

Returns

• Current WLAN state. WLAN states are as follows:

• RSI_WLAN_STATE_NONE = 0,

• RSI_WLAN_STATE_OPERMODE_DONE,

• RSI_WLAN_STATE_BAND_DONE,

• RSI_WLAN_STATE_INIT_DONE,

• RSI_WLAN_STATE_SCAN_DONE,

• RSI_WLAN_STATE_CONNECTED,

• RSI_WLAN_STATE_IP_CONFIG_DONE,

• RSI_WLAN_STATE_IPV6_CONFIG_DONE,

• RSI_WLAN_STATE_AUTO_CONFIG_GOING_ON,

• RSI_WLAN_STATE_AUTO_CONFIG_DONE,

• RSI_WLAN_STATE_AUTO_CONFIG_FAILED

rsi_wlan_get_profile#

int32_t rsi_wlan_get_profile (uint32_t type, rsi_config_profile_t *profile_rsp, uint16_t length)

Get the stored config profile. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa)

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

• This API is not supported in current release.

• Refer to Error Codes for the description of above error codes.

rsi_fill_config_profile#

uint8_t* rsi_fill_config_profile (uint32_t type, uint8_t *profile_buffer)

Fill the config profile based on the profile type.. This is a non-blocking API.

Returns

• Profile buffer

Note

• Precondition - rsi_wireless_init() API needs to be called before this API.

rsi_wlan_delete_profile#

int32_t rsi_wlan_delete_profile (uint32_t type)

Delete stored configuration based on profile type. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa)

Note

• This API is not supported in current release.

• Precondition - rsi_wireless_init() API needs to be called before this API.

rsi_wlan_enable_auto_config#

int32_t rsi_wlan_enable_auto_config (uint8_t enable, uint32_t type)

Enable or disable auto-config with respect to profile. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffa)

Note

• Precondition - rsi_wlan_set() API needs to be called before this API.

• Currently Profile based feature is not supported.

• If user tries to give any other command during autojoin, then user gets error 0x002C. To avoid this, user have to disable auto_join feature and give other commands.

• The parameters of the following APIs are saved when rsi_wlan_enable_auto_config() is called: rsi_wireless_init(), rsi_wlan_scan(), rsi_wlan_scan_with_bitmap_options(), rsi_wlan_connect(), rsi_config_ipaddress(), rsi_wireless_antenna(), rsi_wlan_bgscan_profile(), rsi_radio_caps(), rsi_wlan_ap_start

• Refer to Error Codes for the description of above error codes.

rsi_wlan_pmk_generate#

int32_t rsi_wlan_pmk_generate (int8_t type, int8_t *psk, int8_t *ssid, uint8_t *pmk, uint16_t length)

Generate PMK if PSK and SSID are provided. This is a blocking API.

Returns

• 0 - Success (If type value is 3)

• Non-Zero Value - Failure (Possible Error Codes - 0x0021,0x0025,0x0026,0x0028,0x002C,0x0039,0x003a,0x003b)

Note

• Precondition - rsi_wlan_connect() API needs to be called before this API.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_set_sleep_timer#

int16_t rsi_wlan_set_sleep_timer (uint16_t sleep_time)

Configure the sleep timer mode of the module to go into sleep during power save operation. This is a blocking API.

Returns

• 0 - Success

• Non-Zero Value - Failure

Note

• Can be issued any time in case of power save mode 8 with handshake type as MSG_BASED.

rsi_wlan_register_callbacks#

uint16_t rsi_wlan_register_callbacks (uint32_t callback_id, void(*callback_handler_ptr)(uint16_t status, uint8_t *buffer, const uint32_t length))

Register the WLAN callback functions. This is a non-blocking API.

Prototypes of the callback functions with given callback id#

RSI_WLAN_ASYNC_STATS#

• Asychronous messages are used to indicate module state to host. Asynchronous message are enabled by setting bit 10 of the custom feature bitmap in opermode. • In async messages time_stamp, state_code, reason_code, rsi_channel, rsi_rssi and rsi_bssid are logged.

• time_stamp (4 bytes)

  • This is the value of the time stamp counter at the time of message; timestamps increment at intervals of 100ms.

• state_code (1 byte)

  • This field indicates the state of the module. state_code contains two parts, the upper nibble and lower nibble.

  • The upper nibble indicates the state of the rejoin process. The following table documents the possible values of the upper nibble of state_code.

    State	Upper Nibble	Indication
    Scan Trigger (State I)	0x00	Startup. Initial Roam
    0x10	Beacon Loss. Failover Roam
    0x20	De-authentication. AP induced roam / Disconnect from supplicant
    Scan Result/Decision (State II)	0x50	Current AP is best
    0x60	Better AP found
    0x70	No AP found
    Final Connection (State III)	0x80	Associated
    0x90	Unassociated

  • The lower nibble of state_code indicates the reason for a state change. The following table documents the possible values of the lower nibble of state_code.

    Lower Nibble	Reason for State Change
    0x00	No reason specified
    0x01	No response from AP for authentication request(Authentication denial)
    0x02	Association denial
    0x03	User configured AP is not present
    0x05	EAPOL TX failure
    0x06	Deauthentication from user
    0x07	PSK not configured
    0x08	key-handshake failure during rejoin/roaming/after connection(Disconnection from supplicant)
    0x09	Roaming not enabled

• reason_code (1 byte)

  • Indicates the reason for a failure.

  • These failures also include EAP connection errors for certificate parsing.

  • All supported reason codes are listed below

    reason_code	Reason codes
    0x00	No reason specified
    0x01	No response from AP for authentication request(Authentication denial)
    0x02	Association denial
    0x03	User configured AP is not present
    0x05	EAPOL TX failure
    0x06	Deauthentication from user
    0x07	PSK not configured
    0x08	key-handshake failure during rejoin/roaming/after connection(Disconnection from supplicant)
    0x09	Roaming not enabled
    0x10	Beacon Loss (failover Roam)
    0x20	De-authentication (AP induced Roam/Deauth from supplicant)
    0x28	TLS CA Cert not present
    0x29	TLS PRIVATE key not present
    0x2A	TLS Client Cert not present
    0x2B	TLS no Cert present
    0x2C	PEAP CA Cert not present
    0x2D	Server Cert Invalid Key Type
    0x2E	Server Intermediate CA Invalid Key Type
    0x2F	Server Root CA Invalid Key Type
    0x30	Client Cert Invalid Key Type
    0x31	Client Root CA Invalid Key Type
    0x32	FIPS Server Cert Invalid Length
    0x33	FIPS Server Intermediate CA Invalid Length
    0x34	FIPS Server Root CA Invalid Length
    0x35	FIPS Client Cert Invlaid Length
    0x36	FIPS Client Root CA Invalid Length
    0x37	Server Cert 4096-bit length support is not enabled
    * 0x38	Server Intermediate CA 4096-bit length support is not enabled
    * 0x39	Server Root CA 4096-bit length support is not enabled
    * 0x3A	Client Cert 4096-bit length support is not enabled
    * 0x3B	Client Root CA 4096-bit length support is not enabled
    0x3C	Server Cert Invalid Sign Alg
    0x3D	Server Intermediate CA Invalid Sign Alg
    0x3E	Server Root CA Invalid Sign Length
    0x3F	Client Cert Invalid Sign Alg
    0x40	Client Root CA Invalid Sign Length
    0x41	Server Intermediate CA not Present
    0x42	Server Root CA Parse Error
    0x43	Server Intermediate Root CA Parse Error
    0x44	Sever Cert Parse Error
    0x45	Client Cert Parse Error
    0x46	Incorrect Private Key Password
    0x47	EAP Failure Received
    0x48	Client Cert Bad Date Error
    0x49	Server Cert Bad Date Error
    0x4A	Server Root CA Bad Date Error
    0x4B	Client Root CA Bad Date Error
    0x4C	Server Intermediate Root CA Bad Date Error
    0x4D	Pem Header Error
    0x4E	Pem Footer Error
    0x4F	Client Intermediate CA Invalid Sign Length
    0x50	Client Intermediate CA Invalid Length
    0x51	FIPS Client Intermediate CA Invalid Length
    0x52	Client Intermediate CA invalid Key Type
    0x53	Pem Error
    0x54	Pathlen certificate is Invalid

  • In addition to the above, reason code received in Deauthentication/Disassociation frame from AP is added. This will set the MSB bit of reason_code.

  • If MSB bit is set in reason code, then mask it with 0x7f to get the acutal reason code received in Deauthentication/Disassociation frame.

  • In RS9116 Rev 1.4, above reason codes will come only in TCP/IP bypass mode.

  • Pem Header Error(0x4D) or Pem Footer Error(0x4E) are only applicable if certificates are loaded individually. In case if certificates are loaded combinedly in a single file, only Pem Error(0x53) will be triggered for Header or Footer errors.

rsi_wlan_update_gain_table#

int32_t rsi_wlan_update_gain_table (uint8_t band, uint8_t bandwidth, uint8_t *payload, uint16_t payload_len)

Assign the user configurable channel gain values in different regions to the module from user.This method is used for overwriting default gain tables that are present in firmware. Customer can load all the three gain tables (i.e., 2.4GHz-20Mhz, 5GHz-20Mhz, 5GHz-40Mhz) one after other by changing band and bandwidth values. This is a blocking API.

Note

• 1. This frame has to be used by customers who has done FCC/ETSI/TELEC/KCC certification with their own antenna. All other customers should not use this. Inappropriate use of this frame may result in violation of FCC/ETSI/TELEC/KCC or any certifications and Silicon labs is not liable for that

• Internally firmware maintains two tables : Worldwide table & Region based table. Worldwide table is populated by firmware with Max power values that chip can transmit that meets target specs like EVM. Region based table has default gain value set.

  1. When certifying with user antenna, Region has to be set to Worldwide and sweep the power from 0 to 21dBm. Arrive at max power level that is passing certification especially band-edge.

  2. These FCC/ETSI/TELEC/KCC Max power level should be loaded in end-to-end mode via WLAN User Gain table. This has to be called done every boot-up since this information is not saved inside flash. Region based user gain table sent by application is copied onto Region based table .SoC uses this table in FCC/ETSI/TELEC/KCC to limit power and not to violate allowed limits. For Worldwide region firmware uses Worldwide table for Tx. For other regions(FCC/ETSI/TELEC/KCC), Firmware uses min value out of Worldwide & Region based table for Tx. Also there will be part to part variation across chips and offsets are estimated during manufacturing flow which will be applied as correction factor during normal mode of operation.

• rsi_radio_init() API needs to be called before this API

Gain Table Payload Format#

           1. Gain table Format for 2.4GHz Band: (Each entry of the table is 1 byte)
              In 2.4GHz, Max Gain/Power obtained from certification should be doubled and loaded.
           <TABLE NAME[]>= {
           <NO.of Regions>,
           <REGION NAME 1>, <CHANNEL_CODE_2G>,
           <CHANNEL NUMBER 1>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>, 
           <CHANNEL NUMBER 2>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>, 
           . 
           . 
           .
           .
           .       
           <CHANNEL NUMBER m-1>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>,
           <CHANNEL NUMBER m>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>, 
           <REGION NAME 2>, <CHANNEL_CODE_2G>,
           <CHANNEL NUMBER 1>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>,
           <CHANNEL NUMBER 2>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>,
           . 
           . 
           . 
           . 
           <CHANNEL NUMBER m-1>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>,
           <CHANNEL NUMBER m>, <2 * MAX POWER FOR b RATE>, <2 * MAX POWER FOR g RATE>, <2 * MAX POWER FOR n RATE>, 
           }; 

           Gain table Format for 5GHz Band (Each entry of the table is 1 byte):
             In 5GHz, Max Gain/Power obtained from certification should be loaded.
            <TABLE NAME[]>= { 
                              <NO.of Regions>, 
                              <REGION NAME 1>, <CHANNEL_CODE_5G>, 
                              <CHANNEL NUMBER IN BAND 1 IF ANY>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                               <BAND_NUMBER 1>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <CHANNEL NUMBER IN BAND 2 IF ANY>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <BAND_NUMBER 2>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <CHANNEL NUMBER IN BAND 3 IF ANY>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <BAND_NUMBER 3>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <CHANNEL NUMBER IN BAND 4 IF ANY>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              <BAND_NUMBER 4>, <MAX POWER FOR 11a RATE>, <MAX POWER FOR n RATE>, 
                              . 
                              . 
                              . 
                              . 
                              . 
                              <REGION NAME y>, <CHANNEL_CODE_5G>, 
                              }; 
           2. Supported Region names:
                                  FCC, RED,TELEC  
                                  The following are the regions and the values to be passed instead of macros in the example.
                                  Region      |          Macro Value
                                  ------------|--------------------
                                  FCC         |            0
                                  RED         |            1
                                  TELEC       |            2
           3. <CHANNEL_CODE_2G> is a 8 bit value which is encoded as:
              If TX powers of all the channels are same, then use CHANNEL_CODE_2G as 17. In this case, mention channel number as 255.
              Tf TX power is not same for all channels, then indicate CHANNEL_CODE_2G as no-of channels. And specify tx power values for all the channels indicated.
           4. <CHANNEL_CODE_5G> is a 8 bit value encoded as number of rows in a region for 5G band.
               a. 5G is divided into 4 sub bands: 
                     band 1: channel number <= 48 
                     band 2: channel number > 48 and channel number <= 64 
                     band 3: channel number > 64 and channel number <= 144 
                     band 4: channel number > 144 
               b. If any channel in a band has different set of power values, specify the channel number followed by power values. 
               c. If all the channels in a band 1 has same power values, specify the band number as 1 followed by power value. 
               d. If all the channels in a band 2 has same power values, specify the band number as 2 followed by power value. 
               e. If all the channels in a band 3 has same power values, specify the band number as 3 followed by power value. 
               f. If all the channels in a band 4 has same power values, specify the band number as 4 followed by power value.

Example payload formats#

                     Examples: 
                     For 2.4GHz Band in 20MHz bandwidth
                       {3, //NUM_OF_REGIONS 
                           FCC, 13, //NUM_OF_CHANNELS 
                       //   rate,  11b, 11g, 11n   
                               1,  34,  20,  20,  
                               2,  34,  28,  28,  
                               3,  34,  32,  32,  
                               4,  34,  36,  36,  
                               5,  34,  38,  38,  
                               6,  34,  40,  40,  
                               7,  34,  38,  38,  
                               8,  34,  36,  36,  
                               9,  34,  32,  32,  
                               10, 34,  32,  32,  
                               11, 34,  24,  24,  
                               12, 34,  16,  24,  
                               13, 34,  12,  12,  
                           TELEC, 17, 
                                255, 20,  16, 16, 
                       }; //}}} 

                     For 5GHz band in 20MHz bandwidth
                        {2, 
                        FCC, 6, 
                            1,  9, 10, //band 1 
                            2,  8,  9, //band 2 
                          100,  4,  4, //band 3 
                            3,  6,  8, //band 3 
                          149,  3,  3, //band 4 
                        TELEC, 4, 
                          1, 9, 10, //band 1 
                          2, 8, 10, //band 2   
                          3, 6,  8, //band 3   
                          4, 6,  7, //band 4 
                        };

Customers using Certified MARS antenna should use the gain table structures below:#

                     For 2.4GHz Band in 20MHz bandwidth
                      {3,//NUM_OF_REGIONS
                          FCC, 0xD,//NUM_OF_CHANNELS
                      //   rate,  11b, 11g, 11n
                              1,  28,  32,  30,
                              2,  28,  32,  30,
                              3,  28,  32,  30,
                              4,  30,  28,  34,
                              5,  30,  28,  34,
                              6,  30,  28,  34,
                              7,  30,  28,  34,
                              8,  30,  28,  34,
                              9,  28,  30,  30,
                              10, 28,  30,  30,
                              11, 28,  30,  30,
                              12, 28,  30,  30,
                              13, 28,  30,  30,
                          TELEC,0x11, //NA
                               255, 20,  16, 16,
                      };

                     For 5GHz band in 20MHz bandwidth
                      {2,
                      FCC, 0x6,
                          1, 12, 12, //band 1
                          2, 11, 11, //band 2   
                        100, 10, 12, //band 3   
                          3, 13, 13, //band 3   
                        140, 10, 11, //band 4   
                          4, 13, 13, //band 4   
                      TELEC, 0x4, //NA
                        1, 9, 10, //band 1
                        2, 8, 10, //band 2   
                        3, 6,  8, //band 3   
                        4, 6,  7, //band 4
                      };

Returns

• 0 - Success

• Non-Zero Value - Failure (Possible Error Codes - 0xfffffffe,0xfffffffd,0x0021,0x003E)

Note

• Precondition - rsi_radio_init() API needs to be called before this API

• Length of the payload should match with payload_len parameter value.

• 40MHz is not supported in both 2.4GHz and 5GHz

• This API must be used by customers who has done FCC/RED/TELEC certification with their own antenna. Inappropriate use of this API may result in violation of FCC/RED/TELEC, or any certifications and Silicon labs is not liable for that.

• Internally firmware maintains two gain tables: Worldwide table & Region based table. Worldwide table is populated by firmware with maximum power values that chip can transmit that meets target specifications like EVM. Region based table has default gain value set.

• When certifying with your own antenna, region must be set to Worldwide and sweep the power from 0 to 21dBm. Arrive at maximum power level that is passing certification especially band-edge.

• These FCC/RED/TELEC maximum power level should be loaded in end-to-end mode via WLAN User Gain table.

• This API must be called after every boot-up since this information is not saved inside flash.

• Region based user gain table sent by application is copied onto Region based table. SoC uses this table in FCC/RED/TELEC to limit power and not to violate allowed limits. For Worldwide region firmware uses Worldwide table for transmit. For other regions (FCC/RED/TELEC), firmware uses minimum value of Worldwide and Region based table for transmit.

• There will be part to part variation across chips and offsets are estimated during manufacturing flow which will be applied as correction factor during normal mode of operation.

• Refer to Error Codes for the description of above error codes.

rsi_wlan_csi_config_async#

int32_t rsi_wlan_csi_config_async (uint8_t enable, uint32_t periodicity, uint8_t num_of_mac_addr, uint8_t(*mac_addr)[6], void(*wlan_csi_data_response_handler)(uint16_t status, uint8_t *buffer, const uint32_t length))

Enable or disable CSI data retrieval with configured periodicity.

• rsi_wlan_scan() API needs to be called before this API.

Note

• Callback implementation example - void rsi_wlan_csi_data_response_handler(uint16_t status, rsi_rsp_csi_data_t *payload, const uint32_t payload_length)

Note

• rsi_rsp_csi_data_s : Structure type supposed to hold incoming CSI data

Returns

• 0 - Success Non-Zero Value - Failure -1 - Callback not registered -4 - Buffer unavailable to serve the command

Note

• Refer to Error Codes section for the description of the above error codes Error Codes

rsi_send_evm_offset#

int32_t rsi_send_evm_offset (uint8_t index, int8_t evm_offset_val)

Application to provide feedback of evm_offset error. This is a blocking API.

Returns

• 0 - Success Non zero Value - Failure If return value is less than 0 RSI_ERROR_INVALID_PARAM - Invalid parameters

Note

• Refer to Error Codes section for the description of the above error codes Error Codes.

rsi_evm_write#

int32_t rsi_evm_write (uint8_t target, uint32_t flags, int8_t evm_offset_11B, int8_t evm_offset_11G_6M_24M_11N_MCS0_MCS2, int8_t evm_offset_11G_36M_54M_11N_MCS3_MCS7, int8_t evm_offset_11N_MCS0, int8_t evm_offset_11N_MCS7)

RF calibration process. This API will command the firmware to update the existing Flash/EFuse calibration data. This is a blocking API.

• rsi_transmit_test_start(), rsi_send_evm_offset() API needs to be called before this API.This API is relevant in PER mode only.

Returns

• 0 - Success Non-Zero Value - Failure