License#

Copyright 2019 Silicon Laboratories Inc. www.silabs.com

SPDX-License-Identifier: Zlib

The licensor of this software is Silicon Laboratories Inc.

This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

/***************************************************************************/ /**
 * @file
 * @brief
 *******************************************************************************
 * # License
 * <b>Copyright 2019 Silicon Laboratories Inc. www.silabs.com</b>
 *******************************************************************************
 *
 * SPDX-License-Identifier: Zlib
 *
 * The licensor of this software is Silicon Laboratories Inc.
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 *
 ******************************************************************************/
#pragma once

#include "sl_status.h"
#include "sl_wifi_device.h"
#include "sl_wifi_host_interface.h"
#include "sl_si91x_host_interface.h"
#include "sl_net_types.h"
#include "sl_rsi_utility.h"

#define VERIFY_STATUS(s)   \
  do {                     \
    if (s != SL_STATUS_OK) \
      return s;            \
  } while (0);

typedef enum { SL_NCP_NORMAL_POWER_MODE, SL_NCP_LOW_POWER_MODE, SL_NCP_ULTRA_LOW_POWER_MODE } sl_si91x_power_mode_t;

typedef struct sl_si91x_power_configuration sl_si91x_power_configuration_t;

/***************************************************************************/ /**
 * @brief
 *   Initialize the driver.
 * @param[in] config
 *   @ref sl_wifi_device_configuration_t Pointer to device configuration.
 * @param[in] event_handler
 *   [sl_wifi_event_handler_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-types#sl-wifi-event-handler-t) Function pointer to receive asynchronous events.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_init(const sl_wifi_device_configuration_t *config, sl_wifi_event_handler_t event_handler);

/***************************************************************************/ /**
 * @brief
 *   De-initialize the driver.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_deinit(void);

/***************************************************************************/ /**
 * @brief
 *   Register a function and optional argument for scan results callback.
 * @param[in] command
 *   Command type to be sent to TA firmware.
 * @param[in] queue_type
 *   @ref sl_si91x_queue_type_t Queue type to be used to send the command on.
 * @param[in] data
 *   Command packet to be sent to the TA firmware.
 * @param[in] data_length
 *   Length of command packet.
 * @param[in] wait_period
 *   @ref sl_si91x_wait_period_t Timeout for the command response.
 * @param[in] sdk_context
 *   Pointer to the context.
 * @param[in] data_buffer
 *   [sl_wifi_buffer_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-buffer-t) Pointer to a data buffer pointer for the response data to be returned in.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_send_command(uint32_t command,
                                         sl_si91x_queue_type_t queue_type,
                                         const void *data,
                                         uint32_t data_length,
                                         sl_si91x_wait_period_t wait_period,
                                         void *sdk_context,
                                         sl_wifi_buffer_t **data_buffer);

/***************************************************************************/ /**
 * @brief
 *   Register a function and optional argument for scan results callback.
 * @param[in] command
 *   Command type to be sent to TA firmware.
 * @param[in] data
 *   Command packet to be sent to the TA firmware.
 * @param[in] data_length
 *   Length of command packet.
 * @param[in] wait_period
 *   @ref sl_si91x_wait_period_t Timeout for the command response.
 * @pre 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_send_side_band_crypto(uint32_t command,
                                                  const void *data,
                                                  uint32_t data_length,
                                                  sl_si91x_wait_period_t wait_period);

/***************************************************************************/ /**
 * @brief
 * Send commands to the TA; whose response needs to be handled asynchronously.
 * Note: This function doesn't acquire "command_in_flight" boolean
 * @param[in] command
 *   Command type to be sent to TA firmware.
 * @param[in] queue_type
 *   @ref sl_si91x_queue_type_t Queue type to be used to send the command on.
 * @param[in] data
 *   Command packet to be sent to the TA firmware.
 * @param[in] data_length
 *   Length of the command packet.
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_send_async_command(uint32_t command,
                                               sl_si91x_queue_type_t queue_type,
                                               void *data,
                                               uint32_t data_length);
/***************************************************************************/ /**
 * @brief
 *   Wait for a command response.
 * @param[in] command
 *   @ref rsi_wlan_cmd_request_t Command type to wait .
 * @param[in] wait_period
 *   @ref sl_si91x_wait_period_t Wait time in milliseconds to wait for command response.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_wait_for_response(rsi_wlan_cmd_request_t command, sl_si91x_wait_period_t wait_period);

/***************************************************************************/ /**
 * @brief
 *   Send a socket command.
 * @param[in] request
 *   @ref sl_si91x_socket_send_request_t Pointer to socket command packet.
 * @param[in] data
 *   Pointer to socket data.
 * @param[in] wait_time
 *   Timeout  for the command response.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_send_socket_data(sl_si91x_socket_send_request_t *request,
                                             const void *data,
                                             uint32_t wait_time);

/***************************************************************************/ /**
 * @brief
 *   Send a Bluetooth command.
 * @param[in] command
 *   @ref rsi_wlan_cmd_request_t Command type to be sent.
 * @param[in] queue_type
 *   @ref sl_si91x_queue_type_t Queue type to send command on.
 * @param[in] data
 *   [sl_wifi_buffer_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-buffer-t) Pointer to Bluetooth data.
 * @param[in] sync_command
 *   Sync or Async command.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_send_bt_command(rsi_wlan_cmd_request_t command,
                                            sl_si91x_queue_type_t queue_type,
                                            sl_wifi_buffer_t *data,
                                            uint8_t sync_command);

/***************************************************************************/ /**
 * @brief
 *   Load a certificate into a specified index.
 * @param[in] certificate_type
 *   Type of certificate being loaded
 * @param[in] certificate_index
 *   Index where the certificate is to be loaded.
 * @param[in] buffer
 *   Pointer to the buffer containing the certificate to be loaded.
 * @param[in] certificate_length
 *   Length of the certificate buffer.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_wifi_set_certificate_index(uint8_t certificate_type,
                                                uint8_t certificate_index,
                                                const uint8_t *buffer,
                                                uint32_t certificate_length);

/***************************************************************************/ /**
 * @brief
 *   Set the host rtc timer. This is a blocking API.
 * @param[in]   timer
 *  @ref sl_si91x_module_rtc_time_t Pointer to fill RTC time.
 *       second -->  seconds [0-59]
 *       minute -->  minutes [0-59]
 *       hour   -->  hours since midnight [0-23]
 *       day    -->  day of the month [1-31]
 *       month  -->  months since January [0-11]
 *       year   -->  year since 1990.
 *       Weekday-->  Weekday from Sunday to Saturday [1-7].
 * @note        Hour is 24-hour format only (valid values are 0 to 23).
 *              Valid values for Month are 0 to 11 (January to December).
 * @pre Pre-conditions:
 * -
 *   @ref sl_si91x_driver_init() API needs to be called before this API
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_set_rtc_timer(sl_si91x_module_rtc_time_t *timer);

/***************************************************************************/ /**
 * @brief
 *   Fetch current time from hardware Real Time Clock. This is a blocking API.
 * @param[out]  response
 *  @ref sl_si91x_module_rtc_time_t Response of the requested command. 
 -
 * @note    Response parameters: 
 -
 * *   Pointer to fill RTC time.
 *       second -->  seconds [0-59]
 *       minute -->  minutes [0-59]
 *       hour   -->  hours since midnight [0-23]
 *       day    -->  day of the month [1-31]
 *       month  -->  months since January [0-11]
 *       year   -->  year since 1990.
 *       Weekday-->  Weekday from Sunday to Saturday [1-7].
 * @note        Hour is 24-hour format only (valid values are 0 to 23).
 *              Valid values for Month are 0 to 11 (January to December).
 * @pre Pre-conditions:
 * -
 *   @ref sl_si91x_set_rtc_timer() API needs to be called before this API.
 *   @ref sl_si91x_driver_init() API needs to be called before this API also.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_get_rtc_timer(sl_si91x_module_rtc_time_t *response);

/***************************************************************************/ /**
 * @brief
 *   Writes calibration data to non-volatile device memory.
 * @param[in] data
 *   @ref si91x_calibration_data_t Pointer to buffer containing calibration data.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_write_calibration_data(const si91x_calibration_data_t *data);

/** \addtogroup SI91X_RADIO_FUNCTIONS 
  * \ingroup SL_SI91X_API
  * @{ */

/***************************************************************************/ /**
 * @brief
 *   Start the transmit test. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *  [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] tx_test_info
 *   @ref sl_si91x_request_tx_test_info_t Configurable Tx test mode request structure
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_transmit_test_start(sl_si91x_request_tx_test_info_t *tx_test_info);
/***************************************************************************/ /**
 * @brief
 *   Stop the transmit test. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] void
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_transmit_test_stop(void);

/***************************************************************************/ /**
 * @brief
 *  Used to provide feedback of Frequency error in KHz. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] frequency_calibration
 *   Frequency in KHz of type @ref sl_si91x_freq_offset_t. 
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_frequency_offset(const sl_si91x_freq_offset_t *frequency_calibration);

/***************************************************************************/ /**
 * @brief
 *   Set the device region.
 * @param[in] operation_mode
 *   @ref sl_si91x_operation_mode_t Operation mode of the device.
 * @param[in] band
 *   @ref sl_si91x_band_mode_t Operational band of the device.
 * @param[in] region_code
 *   @ref sl_si91x_region_code_t Region code to be set in the device.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_set_device_region(sl_si91x_operation_mode_t operation_mode,
                                       sl_si91x_band_mode_t band,
                                       sl_si91x_region_code_t region_code);

/***************************************************************************/ /**
 * @brief
 *   This API will command the firmware to update the existing Flash/EFuse calibration data. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init), sl_si91x_transmit_test_start and sl_si91x_frequency_offset should be called before this API.
 * @param[in] calib_write
 *   Write calibration configuration of type @ref sl_si91x_calibration_write_t
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_calibration_write(sl_si91x_calibration_write_t calib_write);

/***************************************************************************/ /**
 * @brief
 *   This API reads the calibration data from the Flash/EFuse storage. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] target
 *          0 - READ_FROM_EFUSE (read calibration data from the EFuse) 
 *          1 - READ_FROM_FLASH (read calibration data from the Flash) 
 * @param[out] calibration_read
 *   Read the calibration configuration of type @ref sl_si91x_calibration_read_t
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_calibration_read(sl_si91x_calibration_read_t target,
                                      sl_si91x_calibration_read_t *calibration_read);

/***************************************************************************/ /**
 * @brief
 *   Application that offers feedback on the error caused by the EVM offset. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] evm_offset
 *   evm offset of type @ref sl_si91x_evm_offset_t
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_evm_offset(const sl_si91x_evm_offset_t *evm_offset);

/***************************************************************************/ /**
 * @brief
 *   This API will command the firmware to update the existing Flash/EFuse calibration data. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init), @ref sl_si91x_evm_offset and @ref sl_si91x_transmit_test_start should be called before this API.
 * @param[in] evm_write
 *   Write the evm calibration configuration  of type @ref sl_si91x_evm_write_t
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_evm_write(const sl_si91x_evm_write_t *evm_write);

/***************************************************************************/ /**
 * @brief
 *   This API updates Flash/Efuse DPD data. This is a synchronous API 
 * @pre Pre-conditions:
 * -
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init), @ref sl_si91x_transmit_test_start should be called before this API.
 * @param[in] dpd_calib_data
 *   Write DPD calibration data of type @ref sl_si91x_get_dpd_calib_data_t
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_dpd_calibration(const sl_si91x_get_dpd_calib_data_t *dpd_calib_data);

/***************************************************************************/ /**
 * @brief
 *  This API will command the firmware to get the data from the Efuse memory location. This is a blocking API.
 * @pre Pre-conditions:
 * - 
 *   [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) should be called before this API.
 * @param[in] efuse_read
 *  efuse read structure, which contains efuse read address offset and read data length of type @ref sl_si91x_efuse_read_t
 * @param[out] efuse_read_buf
 *  efuse read buffer
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_efuse_read(sl_si91x_efuse_read_t *efuse_read, uint8_t *efuse_read_buf);

/** @} */

/***************************************************************************/ /**
 * @brief
 *   Send a raw command frame.
 * @param[in] command
 *   Command type to be sent.
 * @param[in] data
 *   Pointer to the command data to be sent.
 * @param[in] data_length
 *   Length of the data length
 * @param[in] wait_time
 *   Wait time for the command response.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_driver_raw_send_command(uint8_t command,
                                             const void *data,
                                             uint32_t data_length,
                                             uint32_t wait_time);

/***************************************************************************/ /**
 * @brief
 *   Register a event handler for network events.
 * @param[in] function
 *   Function pointer to callback.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_register_event_handler(sl_net_event_handler_t function);

/***************************************************************************/ /**
 * @brief
 *   Default event handler for all events.
 * @param[in] event
 *   [sl_net_event_t](../wiseconnect-api-reference-guide-nwk-mgmt/sl-net-constants#sl-net-event-t) Asynchronous event received.
 * @param[in] buffer
 *   [sl_wifi_buffer_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-buffer-t) Buffer containing data related to asynchronous event.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_default_handler(sl_net_event_t event, sl_wifi_buffer_t *buffer);

/***************************************************************************/ /**
 * @brief
 *   Enable wireless radio.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_enable_radio(void);

/***************************************************************************/ /**
 * @brief
 *   Disable wireless radio.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_disable_radio(void);

/***************************************************************************/ /**
 * @brief
 *   Set device power configuration.
 * @param[in] mode
 *   @ref sl_si91x_power_mode_t Power mode to be set to the device.
 * @param[in] config
 *   @ref sl_si91x_power_configuration_t Pointer to structure containing power configuration.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_set_power_mode(sl_si91x_power_mode_t mode, const sl_si91x_power_configuration_t *config);

/** @} */

/** \addtogroup SI91X_FIRMWARE_UPDATE_FROM_HOST_FUNCTIONS Firmware Update From Host
 * \ingroup SI91X_FIRMWARE_UPDATE_FUNCTIONS
 * @{ */

/***************************************************************************/ /**
 * @brief   
 *   Send the RPS header content of firmware file.This is a blocking API.
 * @param[in] rps_header   
 *   Pointer to the RPS header content.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_fwup_start(uint8_t *rps_header);

/***************************************************************************/ /**
 * @brief      
 *   Send the firmware file content.This is a blocking API.
 * @param[in] content       
 *   Pointer to the firmware file content.
 * @param[in] length     
 *   Length of the content
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_fwup_load(uint8_t *content, uint16_t length);
/** @} */

/** \addtogroup SI91X_DRIVER_FUNCTIONS 
 * \ingroup SL_SI91X_API
 * @{ */

#if defined(SLI_SI91X_MCU_INTERFACE) || defined(DOXYGEN)
/*==============================================*//**
 * @brief      Secure handshake. This is a blocking API.
 *
 * @param[in]  sub_cmd_type Specifies the Sub command type for the secure handshake.
 * @param[in]  input_data  Input data is a pointer that contains the information used during a secure handshake.
 * @param[in]  input_len  Specifies the length of input data.
 * @param[in]  output_len  Specifies the length of output data.
 * @param[in]  output_data Pointer to store the response data after the secure handshake process.
 *
 * @return       sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *
 */
sl_status_t sl_si91x_m4_ta_secure_handshake(uint8_t sub_cmd_type,
                                            uint8_t input_len,
                                            uint8_t *input_data,
                                            uint8_t output_len,
                                            uint8_t *output_data);
#endif

/***************************************************************************/ /**
 * @brief
 *   Si91X specific set join feature bitmap configuration
 * @param[in] interface 
 *   [sl_wifi_interface_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-constants#sl-wifi-interface-t) Selected interface.
 * @param[in] join_feature_bitmap
 *   Join feature bitmap configuration. One of values from @ref SI91X_JOIN_FEATURE_BIT_MAP
 * @return     
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 * @note 
 *     By default SL_SI91X_JOIN_FEAT_LISTEN_INTERVAL_VALID bitmap is enabled. User can call this API before calling [sl_wifi_connect](../wiseconnect-api-reference-guide-wi-fi/wifi-client-api#sl-wifi-connect), [sl_wifi_start_ap](../wiseconnect-api-reference-guide-wi-fi/wifi-ap-api#sl-wifi-start-ap), [sl_wifi_start_wps](../wiseconnect-api-reference-guide-wi-fi/wifi-wps-api#sl-wifi-start-wps) to overwrite the join feature bitmap
 *******************************************************************************/

sl_status_t sl_si91x_set_join_configuration(sl_wifi_interface_t interface, uint8_t join_feature_bitmap);

/***************************************************************************/ /**
 * @brief
 *   Si91X specific get join feature bitmap configuration
 * @param[in] interface
 *   [sl_wifi_interface_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-constants#sl-wifi-interface-t) Selected interface.
 * @param[out] join_feature_bitmap
 *   join feature bitmap configuration. One of values from @ref SI91X_JOIN_FEATURE_BIT_MAP
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 * @note
 *     By default SL_SI91X_JOIN_FEAT_LISTEN_INTERVAL_VALID bitmap is enabled.
 *******************************************************************************/
sl_status_t sl_si91x_get_join_configuration(sl_wifi_interface_t interface, uint8_t *join_feature_bitmap);

/***************************************************************************/ /**
 * @brief
 *   This API is used to set different module timeouts.
 * @pre Pre-conditions:
 * -
 *   @ref This API should be called after [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init)
 * @param[in] timeout_type
 *   It is used to identify which timeout type to be set. The possible values can be @ref sl_si91x_timeout_type_t 
 - 
 * @param[in] timeout_value
 *   timeout value to be set. The time resolution depends on timeout_type.
 * @note 
 *   After a successful IP configuration, Gratuitous ARP is used as the periodic WLAN Keep-Alive packet with the configured keep_alive_timeout interval. 
 -
 *   If there is no IP configuration, the NULL Data Packets is used as the WLAN Keep-Alive packet.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *
 */
sl_status_t sl_si91x_configure_timeout(sl_si91x_timeout_type_t timeout_type, uint16_t timeout_value);

/***************************************************************************/ /**
 * @brief
 *   Si91x specific set timeout. This function is used to set active channel scan timeout, authentication association timeout and keep alive timeout of module.
 * @param[in] timeout_config
 *   Timeout configuration of type @ref sl_si91x_timeout_t.
 * @return None
 * @note
 *   This API should ONLY be called before [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init) and repeated call to this API will overwrite timeout values stored in SDK, will be applied on next call to [sl_wifi_init](../wiseconnect-api-reference-guide-wi-fi/wifi-common-api#sl-wifi-init).
 *******************************************************************************/
void sl_si91x_set_timeout(sl_si91x_timeout_t *timeout_config);

/** @} */

/** \addtogroup SI91X_FIRMWARE_UPDATE_FROM_MODULE_FUNCTIONS Firmware Update From Module
 * \ingroup SI91X_FIRMWARE_UPDATE_FUNCTIONS
 * @{ */
/***************************************************************************/ /**
 * @brief
 *   Create an OTAF client. Initialize the client with a given configuration.
 * @pre Pre-conditions:
 * -
 *   [sl_net_up](../wiseconnect-api-reference-guide-nwk-mgmt/net-interface-functions#sl-net-up) API needs to be called before this API.
 * @param[in]   server_ip
 *   OTAF server IP address @ref sl_ip_address_t
 * @param[in]   server_port
 *   OTAF server port number.
 * @param[in]   chunk_number 
 *   Firmware content request chunk number.
 * @param[in]   timeout
 *   TCP receive packet timeout.
 * @param[in]   tcp_retry_count
 *   TCP retransmissions count.
 * @param[in]   asynchronous
 *   OTAF upgrade done aynchronously when this is set, else synchronous upgrade.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 * @note        For safe firmware upgrade via TCP server, 
 -
 *              it will take approx. 65 sec duration for upgrading the firmware of 1.5 MB file.
 * @note
 *   This is an asynchronous API. The response is recieved via [sl_net_event_handler_t](../wiseconnect-api-reference-guide-nwk-mgmt/sl-net-types#sl-net-event-handler-t) with [SL_NET_OTA_FW_UPDATE_EVENT](../wiseconnect-api-reference-guide-nwk-mgmt/sl-net-constants#sl-net-event-t) as event
 ******************************************************************************/
sl_status_t sl_si91x_ota_firmware_upgradation(sl_ip_address_t server_ip,
                                              uint16_t server_port,
                                              uint16_t chunk_number,
                                              uint16_t timeout,
                                              uint16_t tcp_retry_count,
                                              bool asynchronous);

/** @} */

/***************************************************************************/ /**
 * @brief      Write content on TA flash from M4. This is a blocking API.
 * @param[in]  write_address                 - address at which data will be written on TA flash memory from M4 image end address to M4 region end address
 * @param[in]  write_data                    - Input data
 * @param[in]  write_data_length             - total length, should be multiples of 4K in case of sector erase
 * @param[in]  flash_sector_erase_enable     - Enable or Disable sector erase 
 -
 *                                             1 - Erases multiples of 4 KB of data from M4 Image end address to M4 region end address. 
 -
 *                                             0 - Disable, allows to write data onto flash 
 -
 * @return       sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_command_to_write_common_flash(uint32_t write_address,
                                                   uint8_t *write_data,
                                                   uint16_t write_data_length,
                                                   uint8_t flash_sector_erase_enable);

/***************************************************************************/ /**
 * @brief
 *   Get the current Opermode of the module.
 * @param[in] void
 * @return
 *   sl_si91x_operation_mode_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_si91x_operation_mode_t get_opermode(void);

/***************************************************************************/ /**
 * @brief
 *   Si91X specific set listen interval
 * @param[in] listen_interval
 *   Wi-Fi Listen interval.
 * @return none
 *******************************************************************************/
void sl_si91x_set_listen_interval(uint32_t listen_interval);

/***************************************************************************/ /**
 * @brief
 *   Si91X specific get listen interval
 * @return uint32_t
 *     Wi-Fi Listen interval
 *******************************************************************************/
uint32_t sl_si91x_get_listen_interval(void);

/** \addtogroup SI91X_DRIVER_FUNCTIONS 
 * \ingroup SL_SI91X_API
 * @{ */

/**
 * @brief      Signals the occurrence of an assertion in the firmware.
 * @return     sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
*/
sl_status_t sl_si91x_assert(void);

/***************************************************************************/ /**
 * @brief       
 *   Retrieves TA RAM log/dump via Si91x UART/UART2.
 *  @param[in]   address
 *    Address in Si91x module.
 *  @param[in]   length       
 *    Chunk length to read from Si91x module.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_get_ram_log(uint32_t address, uint32_t length);

/** @} */

/*! @cond SL_SI91X_WIFI_BTR_MODE */
/***************************************************************************/ /**
 * @brief     Si91X specific Wi-Fi BTR mode driver function to send Tx data
 * @param[in] data_ctrlblk - Meta data for the payload.
 * @param[in] payload      - Pointer to payload to be sent to LMAC.
 * @param[in] payload_len  - Length of the payload.
 * @param[in] wait_time    - Wait time for the command response.
 * @return    sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 *******************************************************************************/
sl_status_t sl_si91x_driver_btr_send_data(sl_wifi_btr_data_ctrlblk_t *data_ctrlblk,
                                          uint8_t *payload,
                                          uint16_t payload_len,
                                          uint32_t wait_time);
/*! @endcond SL_SI91X_WIFI_BTR_MODE */

/***************************************************************************/ /**
 * @brief
 *   Register a function and optional argument for scan results callback.
 * @param[in] command
 *   Command type to be sent to TA firmware.
 * @param[in] queue_type
 *   @ref sl_si91x_queue_type_t Queue type to be used to send the command on.
 * @param[in] data
 *   Command packet to be sent to the TA firmware.
 * @param[in] data_length
 *   Length of command packet.
 * @param[in] wait_period
 *   @ref sl_si91x_wait_period_t Timeout for the command response.
 * @param[in] sdk_context
 *   Pointer to the context.
 * @param[in] data_buffer
 *   [sl_wifi_buffer_t](../wiseconnect-api-reference-guide-wi-fi/sl-wifi-buffer-t) Pointer to a data buffer pointer for the response data to be returned in.
 *  @param[in] custom_host_desc
 *   Custom Variable to send additional data to the firmware through the host descriptor.
 * @pre Pre-conditions:
 * - 
 *   @ref sl_si91x_driver_init should be called before this API.
 * @return
 *   sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.
 ******************************************************************************/
sl_status_t sl_si91x_custom_driver_send_command(uint32_t command,
                                                sl_si91x_queue_type_t queue_type,
                                                const void *data,
                                                uint32_t data_length,
                                                sl_si91x_wait_period_t wait_period,
                                                void *sdk_context,
                                                sl_wifi_buffer_t **data_buffer,
                                                uint8_t custom_host_desc);