ui.c File Reference

User Interface.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "ui.h"

Functions
Internal routines to manage asynchronous interrupt pin change
This interrupt is connected to a switch and allows to wakeup CPU in low sleep mode. This wakeup the USB devices connected via a downstream resume.
static void	ui_enable_asynchronous_interrupt (void)
	Initializes and enables interrupt pin change. More...
static void	ui_disable_asynchronous_interrupt (void)
	Disables interrupt pin change. More...
	ISR (ui_wakeup_isr, AVR32_GPIO_IRQ_GROUP, 0)
	Interrupt handler for interrupt pin change. More...
Main user interface functions
void	ui_init (void)
	Initializes the user interface. More...
void	ui_usb_mode_change (bool b_host_mode)
	Notify that the USB mode are switched automatically. This is possible only when ID pin is available. More...
Callback to show the MSC read and write access
void	ui_start_read (void)
void	ui_stop_read (void)
void	ui_start_write (void)
void	ui_stop_write (void)

Host mode user interface functions
static uhc_enum_status_t	ui_enum_status =UHC_ENUM_DISCONNECT
	Status of device enumeration. More...
static uint16_t	ui_device_speed_blink
	Blink frequency depending on device speed. More...
void	ui_usb_vbus_change (bool b_vbus_present)
	Notify that a Vbus are changed Available only in USB hardware with Vbus monitoring. More...
void	ui_usb_vbus_error (void)
	Notify that a Vbus error has occurred Available only in USB hardware with Vbus monitoring. More...
void	ui_usb_connection_event (uhc_device_t *dev, bool b_present)
	Notify that a USB device has been connected or disconnected. More...
void	ui_usb_enum_event (uhc_device_t *dev, uhc_enum_status_t status)
	Notify the end of a USB device enumeration. More...
void	ui_usb_wakeup_event (void)
	Notify that a USB device or the host has wake up the USB line. More...
void	ui_usb_sof_event (void)
	Notify that a SOF has been sent (each 1 ms) More...
void	ui_test_flag_reset (void)
	Resets the status flag of the test. More...
void	ui_test_finish (bool b_success)
	Displays the result of the test. More...

ISR	(	ui_wakeup_isr	,
		AVR32_GPIO_IRQ_GROUP	,
		0
	)

Interrupt handler for interrupt pin change.

References eic_clear_interrupt_line(), EXT_NMI, gpio_clear_pin_interrupt_flag(), GPIO_JOYSTICK_PUSH, uhc_resume(), and ui_disable_asynchronous_interrupt().

static void ui_disable_asynchronous_interrupt ( void  )

static

Disables interrupt pin change.

References eic_disable_line(), EXT_NMI, gpio_disable_pin_interrupt(), and GPIO_JOYSTICK_PUSH.

Referenced by ISR(), and ui_usb_wakeup_event().

static void ui_enable_asynchronous_interrupt ( void  )

static

Initializes and enables interrupt pin change.

Structure holding the configuration parameters of the EIC low level driver.

References cpu_irq_restore(), cpu_irq_save(), EIC_ASYNCH_MODE, eic_enable_line(), EIC_FILTER_ENABLED, eic_init(), EIC_LEVEL_LOW_LEVEL, eic_options_t::eic_line, EIC_MODE_LEVEL_TRIGGERED, EXT_NMI, gpio_enable_module_pin(), gpio_enable_pin_interrupt(), gpio_enable_pin_pull_up(), GPIO_JOYSTICK_PUSH, GPIO_PIN_CHANGE, and irq_register_handler.

Referenced by ui_usb_sof_event().

void ui_init

(

void

)

Initializes the user interface.

References LED0, LED1, LED2, LED3, LED_BI0_GREEN, LED_BI0_RED, LED_BI1_GREEN, LED_BI1_RED, and LED_Off().

Referenced by main(), and ui_usb_mode_change().

void ui_start_read

(

void

)

References LED_BI0_GREEN, and LED_On().

void ui_start_write

(

void

)

References LED_BI0_RED, and LED_On().

void ui_stop_read

(

void

)

References LED_BI0_GREEN, and LED_Off().

void ui_stop_write

(

void

)

References LED_BI0_RED, and LED_Off().

void ui_test_finish

(

bool

b_success

)

Displays the result of the test.

Parameters

b_success

true, if the test is successfull

References LED_BI1_GREEN, LED_BI1_RED, and LED_On().

Referenced by main().

void ui_test_flag_reset

(

void

)

Resets the status flag of the test.

References LED_BI1_GREEN, LED_BI1_RED, and LED_Off().

Referenced by main().

void ui_usb_connection_event	(	uhc_device_t *	dev,
		bool	b_present
	)

Notify that a USB device has been connected or disconnected.

Parameters

dev	Pointer on USB device information
b_present	true, if the device has been connected

References LED2, LED3, LED_BI0_GREEN, LED_BI0_RED, LED_BI1_GREEN, LED_BI1_RED, LED_Off(), LED_On(), and ui_enum_status.

Referenced by main_usb_connection_event().

void ui_usb_enum_event	(	uhc_device_t *	dev,
		uhc_enum_status_t	status
	)

Notify the end of a USB device enumeration.

Parameters

dev	Pointer on USB device information
status	Status of the USB enumeration

References UHD_SPEED_FULL, UHD_SPEED_HIGH, UHD_SPEED_LOW, ui_device_speed_blink, and ui_enum_status.

void ui_usb_mode_change

(

bool

b_host_mode

)

Notify that the USB mode are switched automatically. This is possible only when ID pin is available.

Parameters

b_host_mode

true, if the host mode has been selected

References LED0, LED_On(), and ui_init().

void ui_usb_sof_event

(

void

)

Notify that a SOF has been sent (each 1 ms)

References gpio_get_pin_value(), GPIO_PUSH_BUTTON_0, LED3, LED_BI0_GREEN, LED_BI0_RED, LED_Off(), LED_Toggle(), uhc_suspend(), ui_device_speed_blink, ui_enable_asynchronous_interrupt(), and ui_enum_status.

Referenced by main_usb_sof_event().

void ui_usb_vbus_change

(

bool

b_vbus_present

)

Notify that a Vbus are changed Available only in USB hardware with Vbus monitoring.

Parameters

b_vbus_present

true, if Vbus is high.

References LED1, LED_Off(), and LED_On().

void ui_usb_vbus_error

(

void

)

Notify that a Vbus error has occurred Available only in USB hardware with Vbus monitoring.

void ui_usb_wakeup_event

(

void

)

Notify that a USB device or the host has wake up the USB line.

References ui_disable_asynchronous_interrupt().

uint16_t ui_device_speed_blink

static

Blink frequency depending on device speed.

Referenced by ui_usb_enum_event(), and ui_usb_sof_event().

uhc_enum_status_t ui_enum_status =UHC_ENUM_DISCONNECT

static

Status of device enumeration.

Referenced by ui_usb_connection_event(), ui_usb_enum_event(), and ui_usb_sof_event().