Parallel Input/Output (PIO) Controller driver for SAM.

#include "compiler.h"

Macros
#define	PIO_DEBOUNCE (1u << 3)

#define	PIO_DEFAULT (0u << 0)

#define	PIO_DEGLITCH (1u << 1)

#define	PIO_DELTA ((uint32_t) PIOB - (uint32_t) PIOA)

#define	PIO_IT_AIME (1u << 4)

#define	PIO_IT_EDGE (1u << 6)

#define	PIO_IT_FALL_EDGE (0 \| PIO_IT_EDGE \| PIO_IT_AIME)

#define	PIO_IT_HIGH_LEVEL (PIO_IT_RE_OR_HL \| 0 \| PIO_IT_AIME)

#define	PIO_IT_LOW_LEVEL (0 \| 0 \| PIO_IT_AIME)

#define	PIO_IT_RE_OR_HL (1u << 5)

#define	PIO_IT_RISE_EDGE (PIO_IT_RE_OR_HL \| PIO_IT_EDGE \| PIO_IT_AIME)

#define	PIO_OPENDRAIN (1u << 2)

#define	PIO_PULLUP (1u << 0)

#define	PIO_TYPE_Msk (0xFu << PIO_TYPE_Pos)

#define	PIO_TYPE_NOT_A_PIN (0x0u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_INPUT (0x5u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_OUTPUT_0 (0x6u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_OUTPUT_1 (0x7u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_PERIPH_A (0x1u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_PERIPH_B (0x2u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_PERIPH_C (0x3u << PIO_TYPE_Pos)

#define	PIO_TYPE_PIO_PERIPH_D (0x4u << PIO_TYPE_Pos)

#define	PIO_TYPE_Pos 27

Typedefs
typedef enum _pio_type	pio_type_t

Enumerations
enum	_pio_type { PIO_NOT_A_PIN = PIO_TYPE_NOT_A_PIN, PIO_PERIPH_A = PIO_TYPE_PIO_PERIPH_A, PIO_PERIPH_B = PIO_TYPE_PIO_PERIPH_B, PIO_INPUT = PIO_TYPE_PIO_INPUT, PIO_OUTPUT_0 = PIO_TYPE_PIO_OUTPUT_0, PIO_OUTPUT_1 = PIO_TYPE_PIO_OUTPUT_1 }

Functions
void	pio_clear (Pio *p_pio, const uint32_t ul_mask)
	Set a low output level on all the PIOs defined in ul_mask. More...

uint32_t	pio_configure (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask, const uint32_t ul_attribute)
	Perform complete pin(s) configuration; general attributes and PIO init if necessary. More...

void	pio_configure_interrupt (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attr)
	Configure the given interrupt source. More...

uint32_t	pio_configure_pin (uint32_t ul_pin, const uint32_t ul_flags)
	Perform complete pin(s) configuration; general attributes and PIO init if necessary. More...

uint32_t	pio_configure_pin_group (Pio *p_pio, uint32_t ul_mask, const uint32_t ul_flags)
	Perform complete pin(s) configuration; general attributes and PIO init if necessary. More...

void	pio_disable_interrupt (Pio *p_pio, const uint32_t ul_mask)
	Disable a given interrupt source, with no added side effects. More...

void	pio_disable_output_write (Pio *p_pio, const uint32_t ul_mask)
	Disable PIO output write. More...

void	pio_disable_pin_interrupt (uint32_t pin)
	Disable interrupt for a GPIO pin. More...

void	pio_enable_interrupt (Pio *p_pio, const uint32_t ul_mask)
	Enable the given interrupt source. More...

void	pio_enable_output_write (Pio *p_pio, const uint32_t ul_mask)
	Enable PIO output write for synchronous data output. More...

void	pio_enable_pin_interrupt (uint32_t pin)
	Enable interrupt for a GPIO pin. More...

uint32_t	pio_get (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask)
	Return 1 if one or more PIOs of the given Pin instance currently have a high level; otherwise returns 0. More...

uint32_t	pio_get_interrupt_mask (const Pio *p_pio)
	Read PIO interrupt mask. More...

uint32_t	pio_get_interrupt_status (const Pio *p_pio)
	Read and clear PIO interrupt status. More...

uint32_t	pio_get_multi_driver_status (const Pio *p_pio)
	Get multi-driver status. More...

uint32_t	pio_get_output_data_status (const Pio *p_pio, const uint32_t ul_mask)
	Return 1 if one or more PIOs of the given Pin are configured to output a high level (even if they are not output). More...

uint32_t	pio_get_output_write_status (const Pio *p_pio)
	Read PIO output write status. More...

Pio *	pio_get_pin_group (uint32_t pin)
	Return GPIO port for a GPIO pin. More...

uint32_t	pio_get_pin_group_id (uint32_t pin)
	Return GPIO port peripheral ID for a GPIO pin. More...

uint32_t	pio_get_pin_group_mask (uint32_t pin)
	Return GPIO port pin mask for a GPIO pin. More...

uint32_t	pio_get_pin_value (uint32_t pin)
	Return the value of a pin. More...

uint32_t	pio_get_writeprotect_status (const Pio *p_pio)
	Read write protect status. More...

void	pio_pull_up (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_pull_up_enable)
	Configure PIO internal pull-up. More...

void	pio_set (Pio *p_pio, const uint32_t ul_mask)
	Set a high output level on all the PIOs defined in ul_mask. More...

void	pio_set_additional_interrupt_mode (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attribute)
	Set additional interrupt mode. More...

void	pio_set_debounce_filter (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_cut_off)
	Configure Glitch or Debouncing filter for the specified input(s). More...

void	pio_set_input (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attribute)
	Configure one or more pin(s) or a PIO controller as inputs. More...

void	pio_set_multi_driver (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_multi_driver_enable)
	Configure PIO pin multi-driver. More...

void	pio_set_output (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_default_level, const uint32_t ul_multidrive_enable, const uint32_t ul_pull_up_enable)
	Configure one or more pin(s) of a PIO controller as outputs, with the given default value. More...

void	pio_set_peripheral (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask)
	Configure IO of a PIO controller as being controlled by a specific peripheral. More...

void	pio_set_pin_group_high (Pio *p_pio, uint32_t ul_mask)
	Drive a GPIO port to 1. More...

void	pio_set_pin_group_low (Pio *p_pio, uint32_t ul_mask)
	Drive a GPIO port to 0. More...

void	pio_set_pin_high (uint32_t pin)
	Drive a GPIO pin to 1. More...

void	pio_set_pin_low (uint32_t pin)
	Drive a GPIO pin to 0. More...

void	pio_set_writeprotect (Pio *p_pio, const uint32_t ul_enable)
	Enable or disable write protect of PIO registers. More...

void	pio_sync_output_write (Pio *p_pio, const uint32_t ul_mask)
	Synchronously write on output pins. More...

void	pio_toggle_pin (uint32_t pin)
	Toggle a GPIO pin. More...

void	pio_toggle_pin_group (Pio *p_pio, uint32_t ul_mask)
	Toggle a GPIO group. More...