ui.c File Reference

User Interface.

Copyright (c) 2014-2018 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...
static void	UI_WAKEUP_HANDLER (void)
	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...

Host mode user interface functions
static uhc_enum_status_t	ui_enum_status = UHC_ENUM_DISCONNECT
static uint16_t	ui_device_speed_blink
static uint8_t	ui_nb_down = 0
static bool	ui_move = false
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...
static void	ui_uhi_hid_mouse_btn (bool b_state)
void	ui_uhi_hid_mouse_btn_left (bool b_state)
void	ui_uhi_hid_mouse_btn_right (bool b_state)
void	ui_uhi_hid_mouse_btn_middle (bool b_state)
void	ui_uhi_hid_mouse_move (int8_t x, int8_t y, int8_t scroll)

static void ui_disable_asynchronous_interrupt ( void  )

static

Disables interrupt pin change.

References BUTTON_0_EIC_LINE, EXTINT_CALLBACK_TYPE_DETECT, and extint_chan_disable_callback().

Referenced by ui_usb_wakeup_event(), and UI_WAKEUP_HANDLER().

static void ui_enable_asynchronous_interrupt ( void  )

static

Initializes and enables interrupt pin change.

References BUTTON_0_EIC_LINE, BUTTON_0_EIC_MUX, BUTTON_0_EIC_PIN, extint_chan_conf::detection_criteria, EXTINT_CALLBACK_TYPE_DETECT, extint_chan_clear_detected(), extint_chan_enable_callback(), extint_chan_get_config_defaults(), extint_chan_set_config(), EXTINT_DETECT_FALLING, extint_register_callback(), extint_chan_conf::filter_input_signal, extint_chan_conf::gpio_pin, extint_chan_conf::gpio_pin_mux, and UI_WAKEUP_HANDLER().

Referenced by ui_usb_sof_event().

void ui_init

(

void

)

Initializes the user interface.

References LED_0_PIN, and LED_Off.

Referenced by main().

static void ui_uhi_hid_mouse_btn ( bool  b_state )

static

References ui_nb_down.

Referenced by ui_uhi_hid_mouse_btn_left(), ui_uhi_hid_mouse_btn_middle(), and ui_uhi_hid_mouse_btn_right().

void ui_uhi_hid_mouse_btn_left

(

bool

b_state

)

References ui_uhi_hid_mouse_btn().

void ui_uhi_hid_mouse_btn_middle

(

bool

b_state

)

References ui_uhi_hid_mouse_btn().

void ui_uhi_hid_mouse_btn_right

(

bool

b_state

)

References ui_uhi_hid_mouse_btn().

void ui_uhi_hid_mouse_move	(	int8_t	x,
		int8_t	y,
		int8_t	scroll
	)

References ui_move, and UNUSED.

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 LED_0_PIN, LED_On, ui_enum_status, and UNUSED.

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 LED_0_PIN, LED_Off, and LED_On.

void ui_usb_sof_event

(

void

)

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

References BUTTON_0_PIN, LED_0_PIN, LED_Off, LED_On, LED_Toggle, port_pin_get_input_level(), uhc_suspend(), ui_device_speed_blink, ui_enable_asynchronous_interrupt(), ui_enum_status, ui_move, and ui_nb_down.

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 UNUSED.

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().

static void UI_WAKEUP_HANDLER ( void  )

static

Interrupt handler for interrupt pin change.

References uhc_is_suspend(), uhc_resume(), and ui_disable_asynchronous_interrupt().

Referenced by ui_enable_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().

bool ui_move = false

static

Manages device mouse move

Referenced by ui_uhi_hid_mouse_move(), and ui_usb_sof_event().

uint8_t ui_nb_down = 0

static

Manages device mouse button down

Referenced by ui_uhi_hid_mouse_btn(), and ui_usb_sof_event().