General-Purpose Input-Output#

sl_gpio_irq_callback_t#

typedef void(* sl_gpio_irq_callback_t) (uint32_t flag) )(uint32_t flag)

GPIO interrupt callback function pointer.

sl_gpio_driver_clear_interrupts#

STATIC __INLINE sl_status_t sl_gpio_driver_clear_interrupts (uint32_t flags)

Clears one or more pending GPIO interrupts.

This function clears the specified GPIO interrupt sources. The flags parameter is a bitwise OR of the interrupt sources to be cleared.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance to enable pad selection.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance to enable pad receiver.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_configure_interrupt#

sl_status_t sl_gpio_driver_configure_interrupt (sl_gpio_t * gpio, uint32_t int_no, sl_gpio_interrupt_flag_t flags, sl_gpio_irq_callback_t gpio_callback, uint32_t * avl_intr_no)

Configures the GPIO pin interrupt.

This function sets up a GPIO pin to trigger an interrupt. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration. The int_no parameter specifies the interrupt number to trigger (ranging from 0 to 7). The flags parameter contains the interrupt configuration flags of type sl_gpio_interrupt_flag_t. The gpio_callback parameter is a pointer to the IRQ callback function of type sl_gpio_irq_callback_t. The avl_intr_no parameter is an output pointer to the available interrupt number.

• Pre-conditions:

  • sl_gpio_set_configuration() must be called to configure the GPIO.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_BUSY - Interrupt is busy and cannot carry out the requested operation.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_configure_group_interrupt#

sl_status_t sl_gpio_configure_group_interrupt (sl_si91x_gpio_group_interrupt_config_t * configuration, sl_gpio_irq_callback_t gpio_callback)

Configures the GPIO group interrupts for HP and ULP instances.

This function sets up group interrupts for GPIO pins in both High Performance (HP) and Ultra Low Power (ULP) instances. The configuration parameter is a pointer to a structure of type sl_si91x_gpio_group_interrupt_config_t, which contains the GPIO group interrupt configuration. The gpio_callback parameter is a pointer to the IRQ callback function of type sl_gpio_irq_callback_t.

• Pre-conditions:

  • sl_gpio_set_configuration() must be called to configure the GPIO.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_BUSY - Interrupt is busy and cannot carry out the requested operation.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pins are properly configured before calling this function.

sl_gpio_driver_set_pin_mode#

sl_status_t sl_gpio_driver_set_pin_mode (sl_gpio_t * gpio, sl_gpio_mode_t mode, uint32_t output_value)

Sets the pin mode for a GPIO pin in HP (or) ULP instance.

By default, mode-0 is set, and the GPIO pin acts as a normal GPIO. If a GPIO pin needs to be used for some alternate modes, the respective mode should be selected. For more information about modes present for different instances, refer to the PIN MUX section in the HRM.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_clock() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_get_pin_mode#

sl_status_t sl_gpio_driver_get_pin_mode (sl_gpio_t * gpio, sl_gpio_mode_t * mode)

Gets the pin mode (alternate function) of a GPIO for either HP instance (or) ULP instance as per the port number.

This function retrieves the current pin mode (alternate function) of a specified GPIO pin. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration. The mode parameter is an output parameter that will hold the current pin mode after the function executes.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_init#

sl_status_t sl_gpio_driver_init (void )

Initializes the GPIO driver.

This function initializes the GPIO driver by clearing all the interrupts for High Performance (HP), Ultra Low Power (ULP), and NPSS instances. It also sets all callback function pointers to NULL.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• This function should be called before any other GPIO driver functions to ensure proper initialization.

sl_gpio_driver_deinit#

sl_status_t sl_gpio_driver_deinit (void )

De-Initializes the GPIO driver.

This function de-initializes the GPIO driver by disabling the clocks for both High Performance (HP), Ultra Low Power (ULP) and Ultra Ulta Low Power (UULP) instances. It also sets all callback function pointers to NULL.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• This function should be called to properly clean up the GPIO driver before the application exits or when the GPIO driver is no longer needed.

sl_gpio_driver_unregister#

sl_status_t sl_gpio_driver_unregister (sl_si91x_gpio_instances_t gpio_instance, sl_si91x_gpio_intr_t gpio_intr, uint8_t flag)

Unregisters GPIO driver.

This function unregisters the GPIO driver for a specified GPIO instance and interrupt. The gpio_instance parameter specifies the GPIO instance of type sl_si91x_gpio_instances_t. The gpio_intr parameter specifies the GPIO interrupt of type sl_si91x_gpio_intr_t. The flag parameter specifies the GPIO interrupt flag, with a maximum range of 8.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO instance and interrupt are properly configured before calling this function.

sl_gpio_validation#

STATIC __INLINE sl_status_t sl_gpio_validation (sl_gpio_t * gpio)

Validates the port and pin of a GPIO.

This function checks whether the specified port and pin in the GPIO structure are valid. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the gpio structure is properly initialized before calling this function.

sl_gpio_driver_set_pin#

STATIC __INLINE sl_status_t sl_gpio_driver_set_pin (sl_gpio_t * gpio)

Sets a single pin in the GPIO configuration register to 1.

This function sets a specified GPIO pin to 1 in the GPIO configuration register. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_clear_pin#

STATIC __INLINE sl_status_t sl_gpio_driver_clear_pin (sl_gpio_t * gpio)

Clears a single pin in the GPIO configuration register.

This function clears (sets to 0) a specified GPIO pin in the GPIO configuration register. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_toggle_pin#

STATIC __INLINE sl_status_t sl_gpio_driver_toggle_pin (sl_gpio_t * gpio)

Toggles a single pin in the GPIO port register.

This function toggles the state of a specified GPIO pin in the GPIO port register. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_get_pin#

STATIC __INLINE sl_status_t sl_gpio_driver_get_pin (sl_gpio_t * gpio, uint8_t * pin_value)

Reads the pin value for a single pin in a GPIO port.

This function reads the value of a specified GPIO pin. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration. The pin_value parameter is an output parameter that will hold the value of the GPIO pin after the function executes.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pin is properly configured before calling this function.

sl_gpio_driver_set_port#

STATIC __INLINE sl_status_t sl_gpio_driver_set_port (sl_gpio_port_t port, uint32_t pins)

Sets the bits of the GPIO data out register.

This function sets the specified GPIO pins to 1 in the GPIO data out register for a given port. The port parameter specifies the port to associate with the pin. The pins parameter specifies the GPIO pins in the port that are set to 1. The pins can be specified as a value between 0 and 65535 in decimal (or 0xFFFF in hex), allowing up to 16 pins (0-15) to be set at a time.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pins are properly configured before calling this function.

sl_gpio_driver_clear_port#

STATIC __INLINE sl_status_t sl_gpio_driver_clear_port (sl_gpio_port_t port, uint32_t pins)

Sets the bits in the configuration register for a port to 0.

This function clears (sets to 0) the specified GPIO pins in the configuration register for a given port. The port parameter specifies the port to associate with the pin. The pins parameter specifies the GPIO pins in the port that are set to 0. The pins can be specified as a value between 1 and 65535 in decimal (or 0xFFFF in hex), allowing up to 16 pins (0-15) to be cleared at a time.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pins are properly configured before calling this function.

sl_gpio_driver_get_port_output#

STATIC __INLINE sl_status_t sl_gpio_driver_get_port_output (sl_gpio_port_t port, uint32_t * port_value)

Gets the current setting for a GPIO configuration register.

This function retrieves the current configuration settings for a specified GPIO port. The port parameter specifies the port to associate with the pin. The port_value parameter is an output parameter that will hold the current value of the GPIO port configuration register after the function executes.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

Note

• Ensure that the GPIO clock is enabled and the pins are properly configured before calling this function.

sl_gpio_driver_get_pin_output#

STATIC __INLINE uint8_t sl_gpio_driver_get_pin_output (sl_gpio_t * gpio)

Gets the current setting for a pin in a GPIO configuration register.

This function retrieves the current value of a specified GPIO pin. The gpio parameter is a pointer to a structure of type sl_gpio_t, which contains the GPIO configuration.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• The GPIO pin value:

  • '0' - Low

  • '1' - High

sl_gpio_driver_set_port_output_value#

STATIC __INLINE sl_status_t sl_gpio_driver_set_port_output_value (sl_gpio_port_t port, uint32_t val, uint32_t mask)

Sets the GPIO port configuration register.

This function sets the specified bits in the GPIO port configuration register for a given port. The port parameter specifies the port to associate with the pin. The val parameter specifies the value to write to the port configuration register. The mask parameter indicates which bits to modify.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_set_slew_rate#

STATIC __INLINE sl_status_t sl_gpio_driver_set_slew_rate (sl_gpio_port_t port, uint32_t slewrate, uint32_t slewrate_alt)

Sets the slewrate for pins on an HP instance GPIO port.

This function configures the slewrate for the pins on a specified HP instance GPIO port. The port parameter specifies the GPIO port to configure. The slewrate parameter specifies the slewrate for the pins on this GPIO port. The slewrate_alt parameter specifies the slewrate for the pins using alternate modes on this GPIO port.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_get_port_input#

STATIC __INLINE uint32_t sl_gpio_driver_get_port_input (sl_gpio_port_t port)

Reads the port value for GPIO.

This function reads the value of a specified GPIO port. The port parameter specifies the port to associate with the pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• The GPIO pin value:

  • '0' - Low

  • '1' - High

sl_gpio_driver_toggle_port_output#

STATIC __INLINE sl_status_t sl_gpio_driver_toggle_port_output (sl_gpio_port_t port, uint32_t pins)

Toggles the selected pin values in the GPIO port register.

This function toggles the specified GPIO pins in the port register. The port parameter specifies the port to associate with the pin. The pins parameter specifies the port pins to toggle, ranging from 0 to 65535 in decimal (or 0xFFFF in hex).

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver() must be called for ULP instance.

Use the corresponding pad receiver API for the corresponding GPIO instance.

• sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

• sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_enable_interrupts#

STATIC __INLINE sl_status_t sl_gpio_driver_enable_interrupts (uint32_t flags)

Enables the selected GPIO pin interrupt with the configured interrupt type (Level or Edge).

This function enables the interrupt for the selected GPIO pin with the specified interrupt type, which can be either level-triggered or edge-triggered. The flags parameter specifies the GPIO interrupt sources to enable.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_disable_interrupts#

STATIC __INLINE sl_status_t sl_gpio_driver_disable_interrupts (uint32_t flags)

Disables the selected GPIO pin interrupt with the configured interrupt type (Level or Edge).

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_pad_selection(), for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_set_interrupts#

STATIC __INLINE sl_status_t sl_gpio_driver_set_interrupts (uint32_t flags)

Sets the selected GPIO pin interrupt with the configured interrupt type (Level or Edge).

This function sets the interrupt for the selected GPIO pin with the specified interrupt type, which can be either level-triggered or edge-triggered. The flags parameter specifies the GPIO interrupt sources to set to pending.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_gpio_driver_get_pending_interrupts#

STATIC __INLINE uint32_t sl_gpio_driver_get_pending_interrupts (void )

Gets the pending GPIO interrupts.

This function retrieves the numbers of the GPIO pins that have pending interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Pending GPIO pin interrupt numbers.

sl_gpio_driver_get_enabled_interrupts#

STATIC __INLINE uint32_t sl_gpio_driver_get_enabled_interrupts (void )

Gets the enabled GPIO interrupts.

This function retrieves the numbers of the GPIO pins that have enabled interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Enabled GPIO pin interrupt numbers.

sl_gpio_driver_get_enabled_pending_interrupts#

STATIC __INLINE uint32_t sl_gpio_driver_get_enabled_pending_interrupts (void )

Gets the enabled and pending GPIO interrupt flags.

This function retrieves the flags for the enabled and pending GPIO interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock() must be called to enable the GPIO clock.

  • sl_si91x_gpio_driver_enable_pad_selection() must be called for HP instance.

  • sl_si91x_gpio_driver_enable_pad_receiver() must be called for HP instance.

  • sl_gpio_driver_set_pin_mode() must be called to set the pin mode.

  • sl_si91x_gpio_driver_set_pin_direction() must be called to set the pin direction.

Returns

• Flags indicating the enabled and pending GPIO interrupts.

sl_gpio_set_configuration#

sl_status_t sl_gpio_set_configuration (sl_si91x_gpio_pin_config_t pin_config)

Configuration of the GPIO based on port and pin.

Port A,B,C,D are considered for HP instance, ULP PORT is considered for ULP instance UULP PORT is considered for UULP instance. The configuration of GPIO pin like which GPIO pin and port are to be passed through the structure. By default mode is taken as mode0, which is normal GPIO selection. Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_set_pin_direction#

sl_status_t sl_si91x_gpio_driver_set_pin_direction (uint8_t port, uint8_t pin, sl_si91x_gpio_direction_t direction)

Set the direction for a GPIO pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_pad_selection(), for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use corresponding pad receiver API for corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_pin_direction#

uint8_t sl_si91x_gpio_driver_get_pin_direction (uint8_t port, uint8_t pin)

Get the direction of a selected GPIO pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_pad_selection(), for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use corresponding pad receiver API for corresponding GPIO instance.

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_get_pin_direction()

Returns

• Returns the direction of the pin.

  • '0' - Output

  • '1' - Input

sl_si91x_gpio_driver_enable_pad_receiver#

sl_status_t sl_si91x_gpio_driver_enable_pad_receiver (uint8_t gpio_num)

Enable the receiver enable bit in the PAD configuration register for reading the GPIO pin status.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_pad_selection(), for HP instance

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_disable_pad_receiver#

sl_status_t sl_si91x_gpio_driver_disable_pad_receiver (uint8_t gpio_num)

Disable the receiver enable bit in the PAD configuration register.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_pad_selection(), for HP instance

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_enable_pad_selection#

sl_status_t sl_si91x_gpio_driver_enable_pad_selection (uint8_t gpio_padnum)

Enable the pad selection bit in the PAD selection register.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_enable_host_pad_selection#

sl_status_t sl_si91x_gpio_driver_enable_host_pad_selection (uint8_t gpio_num)

Enable the host pad selection bit in the PAD selection register.

GPIO pin number(25 to 30) are valid for HOST PAD selection, referring to SL_GPIO_PORT_B, pins 9 to 14.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_pad_driver_strength#

sl_status_t sl_si91x_gpio_driver_select_pad_driver_strength (uint8_t gpio_num, sl_si91x_gpio_driver_strength_select_t strength)

Select the drive strength for an HP instance GPIO pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock

  • sl_si91x_gpio_driver_enable_pad_receiver()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argumen.t For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_pad_driver_disable_state#

sl_status_t sl_si91x_gpio_driver_select_pad_driver_disable_state (uint8_t gpio_num, sl_si91x_gpio_driver_disable_state_t disable_state)

Select the driver disabled state control for an HP instance GPIO pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock

  • sl_si91x_gpio_driver_enable_pad_receiver()

• 0, for HiZ (P1=0,P2=0)

• 1, for Pull-up (P1=0,P2=1)

• 2, for Pull-down (P1=1,P2=0)

• 3, for Repeater (P1=1,P2=1)

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_group_interrupt_and_or#

sl_status_t sl_si91x_gpio_driver_select_group_interrupt_and_or (uint8_t port, sl_si91x_group_interrupt_t group_interrupt, sl_si91x_gpio_and_or_t and_or)

Select AND/OR type of the group interrupt.

If multiple interrupts on same port (or) different are to be generated, then use this API. Example: Consider port A: pin 2,3 and port D: pin 1,2 for interrupt generation. Choose OR, any of the selected pin condition triggers the group interrupt generation Choose AND, all the selected pin conditions should match to trigger group interrupt generation

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use corresponding group interrupt configuration API for corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_clear_group_interrupt#

sl_status_t sl_si91x_gpio_driver_clear_group_interrupt (sl_si91x_group_interrupt_t group_interrupt)

Clear the selected group interrupt status value.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock

  • sl_si91x_gpio_driver_enable_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_group_interrupt_status#

uint32_t sl_si91x_gpio_driver_get_group_interrupt_status (uint8_t port, sl_si91x_group_interrupt_t group_interrupt)

Get the current status of the selected group interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode(),

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Returns the group interrupt status register:

  • 1, when interrupt is enabled

  • 0, when interrupt is disabled

sl_si91x_gpio_driver_select_group_interrupt_wakeup#

sl_status_t sl_si91x_gpio_driver_select_group_interrupt_wakeup (uint8_t port, sl_si91x_group_interrupt_t group_interrupt, sl_si91x_gpio_wakeup_t flags)

Configure the group interrupt as a wake-up source across sleep wakeups.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_configure_group_interrupt#

sl_status_t sl_si91x_gpio_driver_configure_group_interrupt (sl_si91x_gpio_group_interrupt_config_t * configuration, sl_gpio_irq_callback_t gpio_callback)

Configure the MCU HP instance group interrupts with trigger type (level/edge), polarity (high/low), interrupt type (and/or) and register the callback function for interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock

  • sl_si91x_gpio_driver_enable_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_group_interrupt_polarity#

uint8_t sl_si91x_gpio_driver_get_group_interrupt_polarity (sl_si91x_group_interrupt_t group_interrupt, uint8_t port, uint8_t pin)

Get the configured polarity of group interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Returns group interrupt polarity:

  • 1, when GPIO pin status is HIGH

  • 0, when GPIO pin status is LOW

sl_si91x_gpio_driver_set_group_interrupt_polarity#

sl_status_t sl_si91x_gpio_driver_set_group_interrupt_polarity (sl_si91x_group_interrupt_t group_interrupt, uint8_t port, uint8_t pin, sl_si91x_gpio_polarity_t polarity)

Configure the polarity to a selected group interrupt which decides the active value of the pin to be considered for group interrupt generation.

'0' – group interrupt gets generated when gpio input pin status is LOW '1' – group interrupt gets generated when gpio input pin status is HIGH

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_group_interrupt_level_edge#

uint8_t sl_si91x_gpio_driver_get_group_interrupt_level_edge (uint8_t port, sl_si91x_group_interrupt_t group_interrupt)

Get the configured level/edge event for the selected group interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode(),

  • sl_si91x_gpio_driver_set_pin_direction(),

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Returns group interrupt level_edge:

  • 1, for Edge

  • 0, for Level

sl_si91x_gpio_driver_set_group_interrupt_level_edge#

sl_status_t sl_si91x_gpio_driver_set_group_interrupt_level_edge (uint8_t port, sl_si91x_group_interrupt_t group_interrupt, sl_si91x_gpio_level_edge_t level_edge)

Set the level/edge event for the selected group interrupt.

'1' Triggers interrupt generation when configured edge is detected on pin. '0' Triggers interrupt generation when configured level is detected on pin.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_unmask_group_interrupt#

sl_status_t sl_si91x_gpio_driver_unmask_group_interrupt (uint8_t port, sl_si91x_group_interrupt_t group_interrupt)

Unmask the selected group interrupt to enable interrupt clearing upon generation.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_mask_group_interrupt#

sl_status_t sl_si91x_gpio_driver_mask_group_interrupt (uint8_t port, sl_si91x_group_interrupt_t group_interrupt)

Mask the selected group interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_disable_clock#

sl_status_t sl_si91x_gpio_driver_disable_clock (sl_si91x_gpio_select_clock_t clock)

Disable the clock for either the HP or ULP instance of the GPIO Peripheral.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_enable_clock#

sl_status_t sl_si91x_gpio_driver_enable_clock (sl_si91x_gpio_select_clock_t clock)

Enable the clock for either the HP or ULP instance of the GPIO peripheral.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_enable_group_interrupt#

sl_status_t sl_si91x_gpio_driver_enable_group_interrupt (sl_si91x_group_interrupt_t group_interrupt, uint8_t port, uint8_t pin)

Enable the selected group interrupts for either the HP or ULP instance of the GPIO peripheral.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

sl_si91x_gpio_driver_disable_group_interrupt#

sl_status_t sl_si91x_gpio_driver_disable_group_interrupt (sl_si91x_group_interrupt_t group_interrupt, uint8_t port, uint8_t pin)

Disable the selected group interrupts for either the HP or ULP instance of the GPIO peripheral.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_clock, for HP instance

  • sl_si91x_gpio_driver_enable_pad_receiver(), for HP instance

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver(), for ULP instance Use the corresponding pad receiver API for the corresponding GPIO instance.

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt(), for HP instance

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt, for ULP instance Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_ulp_pad_slew_rate#

sl_status_t sl_si91x_gpio_driver_select_ulp_pad_slew_rate (uint8_t gpio_num, sl_si91x_gpio_slew_rate_t slew_rate)

Select the slew rate for the ULP instance of the GPIO peripheral.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_ulp_pad_driver_strength#

sl_status_t sl_si91x_gpio_driver_select_ulp_pad_driver_strength (uint8_t gpio_num, sl_si91x_gpio_driver_strength_select_t strength)

Select the drive strength for the ULP instance of the GPIO peripheral.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_ulp_pad_driver_disable_state#

sl_status_t sl_si91x_gpio_driver_select_ulp_pad_driver_disable_state (uint8_t gpio_num, sl_si91x_gpio_driver_disable_state_t disable_state)

Select the driver-disabled state control for the ULP instance of the GPIO peripheral.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_disable_ulp_pad_receiver#

sl_status_t sl_si91x_gpio_driver_disable_ulp_pad_receiver (uint8_t gpio_num)

Disable the receiver enable bit for the ULP instance of the GPIO peripheral.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_enable_ulp_pad_receiver#

sl_status_t sl_si91x_gpio_driver_enable_ulp_pad_receiver (uint8_t gpio_num)

Enable the receiver enable bit for the ULP instance of the GPIO peripheral.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_configure_ulp_pin_interrupt#

sl_status_t sl_si91x_gpio_driver_configure_ulp_pin_interrupt (uint8_t int_no, sl_si91x_gpio_interrupt_config_flag_t flags, sl_si91x_gpio_pin_ulp_t pin, sl_gpio_irq_callback_t gpio_callback)

Configure the MCU ULP instance pin interrupts with the trigger type (level/edge) and register the callback function for interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_set_uulp_npss_pin_mux#

sl_status_t sl_si91x_gpio_driver_set_uulp_npss_pin_mux (uint8_t pin, sl_si91x_uulp_npss_mode_t mode)

Set the NPSS GPIO pin MUX (mode) to the selected mode.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_select_uulp_npss_receiver#

sl_status_t sl_si91x_gpio_driver_select_uulp_npss_receiver (uint8_t pin, sl_si91x_gpio_receiver_t receiver)

Enable/disable the NPSS GPIO Input Buffer.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_set_uulp_npss_direction#

sl_status_t sl_si91x_gpio_driver_set_uulp_npss_direction (uint8_t pin, sl_si91x_gpio_direction_t direction)

Set the direction for the selected NPSS GPIO.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_uulp_npss_direction#

uint8_t sl_si91x_gpio_driver_get_uulp_npss_direction (uint8_t pin)

Get the direction of the selected NPSS GPIO.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Returns the GPIO pin direction:

  • 1, Input Direction

  • 0, Output Direction

sl_si91x_gpio_driver_set_uulp_npss_pin_value#

sl_status_t sl_si91x_gpio_driver_set_uulp_npss_pin_value (uint8_t pin, sl_si91x_gpio_pin_value_t pin_value)

Control(set or clear) the NPSS GPIO pin value.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_uulp_npss_pin#

uint8_t sl_si91x_gpio_driver_get_uulp_npss_pin (uint8_t pin)

Read the status of the selected NPSS GPIO pin value.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_value()

Returns

• Returns the pin logical state of pin:

  • '0' - Output

  • '1' - Input

sl_si91x_gpio_driver_select_uulp_npss_polarity#

sl_status_t sl_si91x_gpio_driver_select_uulp_npss_polarity (uint8_t pin, sl_si91x_gpio_polarity_t polarity)

Select the NPSS GPIO polarity for generating the interrupt.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_set_uulp_npss_wakeup_interrupt#

sl_status_t sl_si91x_gpio_driver_set_uulp_npss_wakeup_interrupt (uint8_t npssgpio_interrupt)

Set the NPSS GPIO interrupt as a wake-up source across sleep wakeups.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_clear_uulp_npss_wakeup_interrupt#

sl_status_t sl_si91x_gpio_driver_clear_uulp_npss_wakeup_interrupt (uint8_t npssgpio_interrupt)

Clear the UULP NPSS GPIO Interrupt as a wake up source.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_mask_uulp_npss_interrupt#

sl_status_t sl_si91x_gpio_driver_mask_uulp_npss_interrupt (uint8_t npssgpio_interrupt)

Mask the selected NPSS GPIO interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_set_uulp_pad_configuration()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_unmask_uulp_npss_interrupt#

sl_status_t sl_si91x_gpio_driver_unmask_uulp_npss_interrupt (uint8_t npssgpio_interrupt)

Unmask the selected NPSS GPIO interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_set_uulp_pad_configuration()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_clear_uulp_interrupt#

sl_status_t sl_si91x_gpio_driver_clear_uulp_interrupt (uint8_t npssgpio_interrupt)

Clear the selected NPSS GPIO interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_set_uulp_pad_configuration()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

  • sl_si91x_gpio_configure_uulp_interrupt()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_uulp_interrupt_status#

uint8_t sl_si91x_gpio_driver_get_uulp_interrupt_status (void )

Get the current status of all the NPSS GPIO interrupt status.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_set_uulp_pad_configuration()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

  • sl_si91x_gpio_configure_uulp_interrupt()

Returns

• Returns the UULP INTR status:

  • 1, interrupt has been raised.

  • 0, interrupt is masked or not raised.

sl_si91x_gpio_driver_get_ulp_interrupt_status#

uint32_t sl_si91x_gpio_driver_get_ulp_interrupt_status (uint32_t flags)

Get the selected ULP instance GPIO pin interrupt status.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_configure_ulp_pin_interrupt()

Returns

• Returns the ULP INTR status: 1, interrupt has been raised 0, interrupt is masked or not raised

sl_si91x_gpio_driver_clear_ulp_interrupt#

sl_status_t sl_si91x_gpio_driver_clear_ulp_interrupt (uint32_t flags)

Clear the selected ULP instance GPIO pin interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_configure_ulp_pin_interrupt()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_clear_ulp_group_interrupt#

sl_status_t sl_si91x_gpio_driver_clear_ulp_group_interrupt (sl_si91x_group_interrupt_t group_interrupt)

Clear the selected ULP instance group interrupt.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

  • sl_si91x_gpio_driver_configure_ulp_group_interrupt()

    Use the corresponding group interrupt configuration API for the corresponding GPIO instance.

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_configure_uulp_interrupt#

sl_status_t sl_si91x_gpio_driver_configure_uulp_interrupt (sl_si91x_gpio_interrupt_config_flag_t flags, uint8_t npssgpio_interrupt, sl_gpio_irq_callback_t gpio_callback)

Configure the UULP GPIO pin interrupt with interrupt type level or edge and registers callback function for interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_set_uulp_pad_configuration()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

  • SL_STATUS_NULL_POINTER - The parameter is null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_configure_ulp_group_interrupt#

sl_status_t sl_si91x_gpio_driver_configure_ulp_group_interrupt (sl_si91x_gpio_group_interrupt_config_t * configuration, sl_gpio_irq_callback_t gpio_callback)

Configure the MCU ULP instance group interrupts with trigger type (level/edge), polarity (high/low), interrupt type (and/or) and register the callback function for interrupts.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_enable_ulp_pad_receiver()

  • sl_gpio_driver_set_pin_mode()

  • sl_si91x_gpio_driver_set_pin_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_toggle_uulp_npss_pin#

sl_status_t sl_si91x_gpio_driver_toggle_uulp_npss_pin (uint8_t pin)

Toggle the selected UULP pin status.

• Pre-conditions:

  • sl_si91x_gpio_driver_enable_clock()

  • sl_si91x_gpio_driver_select_uulp_npss_receiver()

  • sl_si91x_gpio_driver_set_uulp_npss_pin_mux()

  • sl_si91x_gpio_driver_set_uulp_npss_direction()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_set_uulp_pad_configuration#

sl_status_t sl_si91x_gpio_driver_set_uulp_pad_configuration (uulp_pad_config_t * pad_config)

Configure the UULP GPIO pin mode, receiver enable, direction and polarity settings.

• Pre-condition:

  • sl_si91x_gpio_driver_enable_clock()

Returns

• Status code indicating the result:

  • SL_STATUS_OK - Success.

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer.

For more information on status codes, refer to SL STATUS DOCUMENTATION.

sl_si91x_gpio_driver_get_version#

sl_si91x_gpio_version_t sl_si91x_gpio_driver_get_version (void )

Get the release, SQA, and development version numbers of the GPIO peripheral.

Returns

• Returns structure of type sl_si91x_gpio_vversion_t (the structure to hold the versions of peripheral API).

GPIO_MAX_OUTPUT_VALUE#

#define GPIO_MAX_OUTPUT_VALUE

1

GPIO output maximum value.

MAX_GROUP_INT#

#define MAX_GROUP_INT

2

Maximum number of group interrupts.

GPIO_PORT_MAX_VALUE#

#define GPIO_PORT_MAX_VALUE

5

Maximum number of GPIO ports.

MAX_UULP_INT#

#define MAX_UULP_INT

5

Maximum number of UULP interrupts.

ULP_MAX_MODE#

#define ULP_MAX_MODE

10

Maximum ULP mode.

GPIO_MAX_INTR_VALUE#

#define GPIO_MAX_INTR_VALUE

8

Maximum number of M4 GPIO pin interrupts.

PORTD_PIN_MAX_VALUE#

#define PORTD_PIN_MAX_VALUE

9

Port D maximum(0-9) number of GPIO pins.

ULP_PIN_MAX_VALUE#

#define ULP_PIN_MAX_VALUE

11

Port E maximum(0-11) number of GPIO pins.

UULP_PIN_MAX_VALUE#

#define UULP_PIN_MAX_VALUE

5

Port F maximum(0-4) number of GPIO pins.

MAX_ULP_INTR#

#define MAX_ULP_INTR

8

Maximum number of ULP interrupts.

MAX_MODE#

#define MAX_MODE

15

Maximum M4 GPIO mode.

PORTA_PIN_MAX_VALUE#

#define PORTA_PIN_MAX_VALUE

57

GPIO pin maximum(0-63) value for SL_GPIO_PORT_A of HP instance.

PORT_PIN_MAX_VALUE#

#define PORT_PIN_MAX_VALUE

15

GPIO pin maximum(0-15) value for SL_GPIO_PORT_B, SL_GPIO_PORT_C of HP instance.

GPIO_FLAGS_MAX_VALUE#

#define GPIO_FLAGS_MAX_VALUE

0x0F

GPIO flags maximum value.

PAD_SELECT_9#

#define PAD_SELECT_9

9

GPIO PAD selection number.

UULP_PORT#

#define UULP_PORT

5

Refers to port for UULP instance.

GPIO_MAX_PORT_PINS#

#define GPIO_MAX_PORT_PINS

0xFFFF

Refers to maximum no. of pins port can support.