usb_dual.c File Reference

SAM USB Dual Role driver file.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include "usb_dual.h"
#include <udc.h>

Macros
#define	_usb_is_id_device()   port_pin_get_input_level(USB_ID_PIN)
#define	uhc_start(void)
#define	uhc_stop(b_id_stop)

Functions
void	usb_dual_disable (void)
	Deinitialize the dual role driver. More...
bool	usb_dual_enable (void)
	Initialize the USB peripheral and set right role according to ID pin. More...
USB ID PAD management
static void	usb_id_handler (void)
	USB ID pin change handler. More...
static void	usb_id_config (void)
	USB ID pin configuration. More...

Variables
static bool	_initialized = false

#define _usb_is_id_device

(

)

port_pin_get_input_level(USB_ID_PIN)

Referenced by usb_dual_enable(), and usb_id_handler().

#define uhc_start

(

void

)

Referenced by usb_dual_enable(), and usb_id_handler().

#define uhc_stop

(

b_id_stop

)

Referenced by usb_id_handler().

static void usb_id_config ( void  )

static

USB ID pin configuration.

References extint_chan_conf::detection_criteria, EXTINT_CALLBACK_TYPE_DETECT, extint_chan_disable_callback(), extint_chan_enable_callback(), extint_chan_get_config_defaults(), extint_chan_set_config(), EXTINT_DETECT_BOTH, extint_register_callback(), extint_chan_conf::filter_input_signal, extint_chan_conf::gpio_pin, extint_chan_conf::gpio_pin_mux, USB_ID_EIC_LINE, USB_ID_EIC_MUX, usb_id_handler(), and USB_ID_PIN.

Referenced by usb_dual_enable().

static void usb_id_handler ( void  )

static

USB ID pin change handler.

References _usb_is_id_device, EXTINT_CALLBACK_TYPE_DETECT, extint_chan_disable_callback(), extint_chan_enable_callback(), udc_start(), udc_stop(), uhc_start, uhc_stop, and USB_ID_EIC_LINE.

Referenced by usb_id_config().

bool _initialized = false

static

Referenced by usb_dual_disable(), and usb_dual_enable().