Defined Constants and Types for the SAMD Port controller. More...

Collaboration diagram for IO Port Definitions:

Modules
	Port Base registers

	GPIO Pin Identifiers

	GPIO mux configuration

	PORT Registers

	PortX WRCONFIG Values

	GPIO Pin direction

	GPIO mode configuration

Macros
#define	PORT_PMUX_PMUXO(mux) ((0xf & (mux)) << 4)
	PMUXO: Peripheral Multiplexing for Odd-Numbered Pin: 2*x+1 pin multiplexing. More...

#define	PORT_PMUX_PMUXE(mux) ((0xf & (mux)) << 0)
	PMUXE: Peripheral Multiplexing for Even-Numbered Pin: 2*x pin multiplexing. More...

#define	PORT_PINCFG_DRVSTR (1 << 6)
	DRVSTR: Output Driver Strength Selection. More...

#define	PORT_PINCFG_PULLEN (1 << 2)
	PULLEN: Pull Enable. More...

#define	PORT_PINCFG_INEN (1 << 1)
	INEN: Input Enable. More...

#define	PORT_PINCFG_PMUXEN (1 << 0)
	PMUXEN: Peripheral Multiplexer Enable. More...

Functions
void	gpio_mode_setup (uint32_t gpioport, uint8_t mode, uint8_t cnf, uint32_t gpios)
	Initialize GPIO pins. More...

void	gpio_set_af (uint32_t gpioport, uint8_t af, uint32_t gpios)
	Alternate function GPIO pins. More...

void	gpio_set (uint32_t gpioport, uint32_t gpios)
	Set a group of Pins. More...

void	gpio_clear (uint32_t gpioport, uint32_t gpios)
	Clear a group of Pins. More...

uint32_t	gpio_get (uint32_t gpioport, uint32_t gpios)
	Read level of a group of Pins. More...

void	gpio_toggle (uint32_t gpioport, uint32_t gpios)
	Toggle level of a group of Pins. More...

uint32_t	port_read (uint32_t port)
	Read level for all pins from a port. More...

void	port_write (uint32_t port, uint32_t data)
	Set level for all pins from a port. More...

Detailed Description

Defined Constants and Types for the SAMD Port controller.

Copyright: SPDX: LGPL-3.0-or-later

Author: 2016 Karl Palsson karlp.nosp@m.@twe.nosp@m.ak.ne.nosp@m.t.au; 2020 Gwenhael Goavec-Merou gwenh.nosp@m.ael..nosp@m.goave.nosp@m.c-me.nosp@m.rou@t.nosp@m.rabu.nosp@m.cayre.nosp@m..com

Macro Definition Documentation

◆ PORT_PINCFG_DRVSTR

#define PORT_PINCFG_DRVSTR (1 << 6)

DRVSTR: Output Driver Strength Selection.

Definition at line 211 of file port.h.

◆ PORT_PINCFG_INEN

#define PORT_PINCFG_INEN (1 << 1)

INEN: Input Enable.

Definition at line 217 of file port.h.

◆ PORT_PINCFG_PMUXEN

#define PORT_PINCFG_PMUXEN (1 << 0)

PMUXEN: Peripheral Multiplexer Enable.

Definition at line 220 of file port.h.

◆ PORT_PINCFG_PULLEN

#define PORT_PINCFG_PULLEN (1 << 2)

PULLEN: Pull Enable.

Definition at line 214 of file port.h.

◆ PORT_PMUX_PMUXE

#define PORT_PMUX_PMUXE ( mux ) ((0xf & (mux)) << 0)

PMUXE: Peripheral Multiplexing for Even-Numbered Pin: 2*x pin multiplexing.

Definition at line 204 of file port.h.

◆ PORT_PMUX_PMUXO

#define PORT_PMUX_PMUXO ( mux ) ((0xf & (mux)) << 4)

PMUXO: Peripheral Multiplexing for Odd-Numbered Pin: 2*x+1 pin multiplexing.

Definition at line 201 of file port.h.

Function Documentation

◆ gpio_clear()

void gpio_clear	(	uint32_t	gpioport,
		uint32_t	gpios
	)

Clear a group of Pins.

Clear a group of Pins for the given port.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 108 of file port.c.

References PORT_OUTCLR.

◆ gpio_get()

uint32_t gpio_get	(	uint32_t	gpioport,
		uint32_t	gpios
	)

Read level of a group of Pins.

Read the level of a group of Pins for the given port.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 121 of file port.c.

References PORT_IN.

◆ gpio_mode_setup()

void gpio_mode_setup	(	uint32_t	gpioport,
		uint8_t	mode,
		uint8_t	cnf,
		uint32_t	gpios
	)

Initialize GPIO pins.

Configure a group of Pins for the given port.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	mode	direction GPIO Pin direction
[in]	cnf	configuration mode GPIO mode configuration
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 23 of file port.c.

References GPIO_CNF_AF, GPIO_CNF_PULLDOWN, GPIO_CNF_PULLUP, GPIO_MODE_INPUT, GPIO_MODE_OUTPUT, PORT_DIRCLR, PORT_DIRSET, PORT_OUTCLR, PORT_OUTSET, PORT_WRCONFIG, PORT_WRCONFIG_HWSEL, PORT_WRCONFIG_INEN, PORT_WRCONFIG_PINMASK, PORT_WRCONFIG_PMUXEN, PORT_WRCONFIG_PULLEN, and PORT_WRCONFIG_WRPINCFG.

◆ gpio_set()

void gpio_set	(	uint32_t	gpioport,
		uint32_t	gpios
	)

Set a group of Pins.

Set a group of Pins for the given port.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 95 of file port.c.

References PORT_OUTSET.

◆ gpio_set_af()

void gpio_set_af	(	uint32_t	gpioport,
		uint8_t	af,
		uint32_t	gpios
	)

Alternate function GPIO pins.

Configure a group of Pins in alternate function.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	af	pmux configuration GPIO mux configuration
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 73 of file port.c.

References PORT_WRCONFIG, PORT_WRCONFIG_HWSEL, PORT_WRCONFIG_PINMASK, PORT_WRCONFIG_PMUX, PORT_WRCONFIG_PMUXEN, PORT_WRCONFIG_WRPINCFG, and PORT_WRCONFIG_WRPMUX.

◆ gpio_toggle()

void gpio_toggle	(	uint32_t	gpioport,
		uint32_t	gpios
	)

Toggle level of a group of Pins.

Toggle one or more pins of the givent port.

Parameters

[in]	gpioport	port register address base Port Base registers
[in]	gpios	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 134 of file port.c.

References PORT_OUTTGL.

◆ port_read()

uint32_t port_read ( uint32_t port )

Read level for all pins from a port.

Read the level of all pins of the given port.

Parameters

[in] port register address base Port Base registers

Returns: The level of all pins on the port.

Definition at line 147 of file port.c.

References PORT_IN.

◆ port_write()

void port_write	(	uint32_t	port,
		uint32_t	data
	)

Set level for all pins from a port.

Set the level of all pins of the given port.

Parameters

[in]	port	register address base Port Base registers
[in]	data	GPIO Pin Identifiers. Any combination of pins may be specified by OR'ing then together.

Definition at line 160 of file port.c.

References PORT_OUT.

Modules

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ PORT_PINCFG_DRVSTR

◆ PORT_PINCFG_INEN

◆ PORT_PINCFG_PMUXEN

◆ PORT_PINCFG_PULLEN

◆ PORT_PMUX_PMUXE

◆ PORT_PMUX_PMUXO

Function Documentation

◆ gpio_clear()

◆ gpio_get()

◆ gpio_mode_setup()

◆ gpio_set()

◆ gpio_set_af()

◆ gpio_toggle()

◆ port_read()

◆ port_write()