Sensor Hub#

sl_sensor_mode_t#

sl_sensor_mode_t

Enumeration for Sensor HUB data reading mode.

sl_sensorhub_event_t#

sl_sensorhub_event_t

sl_gpio_intr_type_t#

sl_gpio_intr_type_t

sl_data_deliver_mode_t#

sl_data_deliver_mode_t

sl_sensor_status_t#

sl_sensor_status_t

sl_power_state_t#

sl_power_state_t

sl_sensor_signalEvent_t#

typedef void(* sl_sensor_signalEvent_t) (uint8_t sensor_id, uint8_t event, void *data) )(uint8_t sensor_id, uint8_t event, void *data)

sl_adc_cfg_t#

typedef struct sl_adc_config sl_adc_cfg_t

sl_si91x_sensorhub_init#

sl_status_t sl_si91x_sensorhub_init ( -, -)

Initialization Peripherals of Sensor HUB.

This function will initialize the Peripherals, based on the user configuration. like - I2C/SPI/ADC

Returns

• status 0 if successful, else error code as follow:

  • SL_STATUS_FAIL (0x0001)- Fail, Peripherals initialization failed

  • SL_STATUS_OK (0X000)- Success, Peripherals initialization done properly

sl_si91x_sensorhub_detect_sensors#

sl_status_t sl_si91x_sensorhub_detect_sensors (sl_sensor_id_t sensor_id_info, uint8_t num_of_sensors, -)

Detect the sensors.

This function will detect the sensor, based on the user configuration. and it will store the scanned sensor ID in the structure.

Returns

• if successful, Return number of sensors is scanned else error code SL_STATUS_FAIL (0x0001)- Fail,

sl_si91x_sensorhub_delete_sensor#

sl_status_t sl_si91x_sensorhub_delete_sensor (sl_sensor_id_t sensor_id, -)

Delete the specific sensor from the Sensor HUB.

This function will delete the specific sensor from the sensor list, modify the sensor status to invalid, and publish the events to the event task.

Returns

• status 0 if successful, else error code as follow:

  • SL_STATUS_FAIL (0x0001) - Fail, Delete sensor failed

  • SL_STATUS_OK (0X000) - Success, Delete sensor Success

sl_si91x_sensorhub_create_sensor#

sl_status_t sl_si91x_sensorhub_create_sensor (sl_sensor_id_t sensor_id, -)

Create a sensor instance in the sensor hub.

This function will create the sensor instances in the sensor HUB. Checking the sensor state and creating the sensor list index. Allocate max sample memory for the specific sensor. Creating the RTOS timer instance for the sensor sampling interval.

Returns

• status 0 if successful, else error code as follow:

  • SL_STATUS_FAIL (0x0001)- Fail, Create sensor instance failed

  • SL_STATUS _OK (0X000) - Create sensor instanceSuccess ,

sl_si91x_sensorhub_start_sensor#

sl_status_t sl_si91x_sensorhub_start_sensor (sl_sensor_id_t sensor_id, -)

Start the sensor operation for the given sensor.

This function will start the sensor operation for the given sensor. Based on the sensor mode it will start the Polling/interrupt mode operations. It will Start the RTOS timer in Polling mode for the sensor. It will enable IRQ handles for the interrupt mode operations. it will post the status events to the em task. It will send the Control commands to the sensor to perform the operations.

Returns

• status 0 if successful, else error code as follow:

  • SL_STATUS_FAIL (0x0001)- Fail, Sensor start failed

  • SL_STATUS _OK (0X000) - Success ,Sensor start done properly

sl_si91x_sensorhub_stop_sensor#

sl_status_t sl_si91x_sensorhub_stop_sensor (sl_sensor_id_t sensor_id, -)

Stop the sensor operation for the given sensor.

This function will stop the sensor operation for the given sensor. Based on the sensor mode it will stop the Polling/interrupt mode operations and updates the sensor statutes. It will Stop the RTOS timer in Polling mode for the sensor. It will disable IRQ handles for the interrupt mode operations. it will post the status events to the em task. It will send the Control commands to the sensor to perform the operations.

Returns

• status 0 if successful, else error code as follows:

  • SL_STATUS_FAIL (0x0001)- Fail, Sensor stop failed

• SL_STATUS _OK (0X000) - Success ,Sensor stop done properly

sl_si91x_em_post_event#

void sl_si91x_em_post_event (sl_sensor_id_t sensor_id, sl_sensorhub_event_t event, void * dataPtr, TickType_t ticks_to_wait, -)

Post the events to event manager(EM) to be notified to the application.

This function will update the event queue based on the sensor event. It will acquire the events task mutex and update the events in the messageque and release the mutex.

Returns

• - NULL

sl_si91x_sensor_task#

void sl_si91x_sensor_task (void , -)

Task to handle the sensor operations.

This function will handle the sensor operations. It will create the OS event and mutex to perform the sensor operations. It will sample the Sensor data based on the event flags. It will check the events and post the sensor data to the em task based on the sensor data delivery mode.

Returns

• - NULL

sl_si91x_power_state_task#

void sl_si91x_power_state_task (void , -)

Task to handle the system power operations.

This function will handle the system power operations. It will change the system from one power save mode to another power save made like(PS4 to PS2),(PS2toPS4),(SLeep_mode). It will use the Binary semaphore for changing the power states.

Returns

• - NULL

sl_si91x_em_task#

void sl_si91x_em_task (void , -)

Task to handle the operations of the Event Manager(EM)

This function will handle the Event Manager(EM) operations. It will create the osMessageQueue and mutex to perform the event operations. It will check the events in the osMessageQueue and send the sensor data to the application. It will check the acknowledgment from the application. Returns

• - NULL

sli_si91x_i2c_init#

int32_t sli_si91x_i2c_init (void , -)

Initialize the I2C Interface based on configuration.

This function will configure/Initialize I2C Interface based on configuration.

Returns

• Initialize status to the application

sli_si91x_spi_init#

int32_t sli_si91x_spi_init (void , -)

Initialize SPI Interface based on configuration.

This function will configure/Initialize SPI Interface based on configuration.

Returns

• Initialize status to the application.

sli_si91x_i2c_sensors_scan#

int32_t sli_si91x_i2c_sensors_scan (uint16_t address, -)

Scan the I2C sensors.

This function will scan the I2C sensors based on the sensor address.

Returns

• status 0 if successful, else it will wait for the sensor response.

sli_si91x_get_sensor_implementation#

sl_sensor_impl_type_t * sli_si91x_get_sensor_implementation (int32_t sensor_id, -)

to get sensor implementation.

This function will used to perform the sensor operation by using the sensor implementation structure.

Returns

• if successful, returns the Sensor implementation structure else it will return an error code.

sli_si91x_create_sensor_list_index#

int32_t sli_si91x_create_sensor_list_index ( -, -)

Create the sensor list.

This function will Create the sensor list index based on the sensor status For the maximum sensors available in the sensor hub

Returns

• if successful, returns the sensor index else it will break the sensor list.

sli_si91x_get_sensor_index#

uint32_t sli_si91x_get_sensor_index (sl_sensor_id_t sensor_id, -)

Get the sensor index for the sensor list.

This function will retrieve the sensor index from the sensor list based on the sensor status and sensor ID for the maximum number of sensors available in the sensor hub.

Returns

• if successful, returns the sensor index else it returns the 0XFF as a sensor index fail.

sli_si91x_delete_sensor_list_index#

uint32_t sli_si91x_delete_sensor_list_index (sl_sensor_id_t sensor_id, -)

Delete the sensor index for the sensor list.

This function will delete the sensor from the sensor list based on The sensor ID for the maximum number of sensors available in the sensor hub.

Returns

• if successful, returns the sensor index else it returns the 0XFF as a sensor index fail.

sli_si91x_get_sensor_info#

sl_sensor_info_t * sli_si91x_get_sensor_info (sl_sensor_id_t sensor_id, -)

get the sensor info from the sensor configuration structure.

This function will retrieve sensor data from the sensor configuration structure to update the sensor list configuration structure for the maximum number of sensors available in the sensor hub.

Returns

• if successful, returns the sensor information. else it returns the NULL as a sensor ID not found.

sl_si91x_sensorhub_notify_cb_register#

sl_status_t sl_si91x_sensorhub_notify_cb_register (sl_sensor_signalEvent_t cb_event, sl_sensor_id_t * cb_ack, -)

Call back function to the application.

This function will update the callback function event and acknowledgment.

Returns

• - If successful returns SL_STATUS_OK,If fail returns error code

sl_si91x_sensors_timer_cb#

void sl_si91x_sensors_timer_cb (TimerHandle_t xTimer, -)

Sensor OS timer callback function.

This function will set the event flag bits based on the sensor sampling intervals. In the polling mode call the timer call-back function.

Returns

• - NULL

sl_si91x_gpio_interrupt_config#

sl_status_t sl_si91x_gpio_interrupt_config (uint16_t gpio_pin, sl_gpio_intr_type_t intr_type, -)

Configuring the different types of NPSS GPIO interrupts in the Sensor HUB.

This function configures the NPSS gpios and enables the interrupt mode for the gpios.

Returns

• - If successful returns SL_STATUS_OK,If fail returns error code

sl_si91x_gpio_interrupt_start#

void sl_si91x_gpio_interrupt_start (uint16_t gpio_pin, -)

Enable and set the priority of NPSS GPIO interrupt.

This function configures and sets the priority of the NPSS GPIO interrupt. GPIO interrupt priority is=(configMAX_SYSCALL_INTERRUPT_PRIORITY - 1)

Returns

• - NULL

sl_si91x_gpio_interrupt_stop#

void sl_si91x_gpio_interrupt_stop (uint16_t gpio_pin, -)

Mask and Disable the NPSS GPIO interrupt.

This function masks and disables the IRQ handler the NPSS GPIO interrupt.

Returns

• - NULL

sl_si91x_sensor_hub_start#

sl_status_t sl_si91x_sensor_hub_start (void , -)

Start the sensor hub Tasks.

This Starts the sensor hub Tasks.

Returns

• - If succesfull returns SL_STATUS_OK,If fail returns error code

sli_si91x_set_alarm_intr_time#

void sli_si91x_set_alarm_intr_time (uint16_t interval, -)

set the alarm interrupt time.

This function will set the alarm interrupt based on the periodic time.

Returns

• - NULL

sli_si91x_init_m4alarm_config#

void sli_si91x_init_m4alarm_config (void , -)

initialize the Alarm block.

This function will initialize the Alarm block.

Returns

• - NULL

sli_si91x_config_wakeup_source#

void sli_si91x_config_wakeup_source (uint16_t sleep_time, -)

Configure the wake-up source for the system.

This function will configure the wake-up source to the system.

Returns

• - NULL

sli_si91x_sleep_wakeup#

void sli_si91x_sleep_wakeup (uint16_t sh_sleep_time, -)

Configures sleep/wakeup sources for the system.

This function will configure sleep/wakeup sources.

Returns

• - NULL

sli_si91x_sensorhub_ps4tops2_state#

void sli_si91x_sensorhub_ps4tops2_state (void , -)

Change the system status from PS4 to PS2.

This function will change the system status from PS4 to PS2.

Returns

• - NULL

sli_si91x_sensorhub_ps2tops4_state#

void sli_si91x_sensorhub_ps2tops4_state (void , -)

Change the system status from PS2 to PS4.

This function will change the system status from PS2 to PS4.

Returns

• - NULL

sli_si91x_adc_init#

sl_status_t sli_si91x_adc_init (void )

Initialize ADC Interface based on configuration.

This function will configure/Initialize ADC Interface based on configuration.

Returns

• error code SL_STATUS_FAIL (0x0001)- Fail , SL_STATUS_OK (0X000)- Success

vPortSetupTimerInterrupt#

void vPortSetupTimerInterrupt (void , -)

Initialize and configure the systic timer for the RTOS.

Set up the systic timer to generate the tick interrupts at the required frequency.

Returns

• Initialize status to the application.

ARM_I2C_SignalEvent#

void ARM_I2C_SignalEvent (uint32_t event, -)

I2C event handler.

Returns

• None

sl_si91x_fetch_adc_bus_intf_info#

uint8_t sl_si91x_fetch_adc_bus_intf_info (void )

Fetch ADC bus interface information.

This can be used by lower level layers Returns

• Pointer to ADC configuration structure

sl_si91x_adc_callback#

void sl_si91x_adc_callback (uint8_t channel_no, uint8_t event)

ADC callback from RSI_ADC_InterruptHandler.