//--------- Begin of function HelpSaveScreen::save_scr --------//
//!
void HelpSaveScreen::save_scr(int x1, int y1, int x2, int y2, VgaBuf* vgaBuf ) {
if( !is_clear() ) // there is already a screen saved
return;
err_when( x1>x2 || y1>y2 || x1<0 || y1<0 || x2>=VGA_WIDTH || y2>=VGA_HEIGHT );
long saveSize = (long)(x2-x1+1) * (y2-y1+1);
err_when( saveSize > HELP_SCR_BUF_SIZE );
if( !vgaBuf )
vgaBuf = &vga_front;
save_scr_x1 = x1;
save_scr_y1 = y1;
save_scr_x2 = x2;
save_scr_y2 = y2;
if( vgaBuf->is_front )
mouse.hide_area( x1, y1, x2, y2 );
save_scr_buf->clear();
save_scr_buf->resize( x1, y1, x2-x1+1, y2-y1+1 );
vgaBuf->read_bitmapW( x1, y1, x2, y2, save_scr_buf->bitmap_ptr() );
if( vgaBuf->is_front )
mouse.show_area();
unclear();
}
void
NEXA::Receiver::on_interrupt(uint16_t arg)
{
// Check start condition
if (m_start == 0L) {
if (is_clear()) return;
m_start = RTC::micros();
m_ix = 0;
return;
}
// Calculate the pulse width (both low and high) and check against threshold
uint32_t stop = RTC::micros();
uint32_t us = (stop - m_start);
m_start = stop;
if (us < LOW_THRESHOLD || us > HIGH_THRESHOLD) goto exception;
m_sample[m_ix & IX_MASK] = us;
m_ix += 1;
// Decode every four pulses to a bit
if ((m_ix & IX_MASK) == 0) {
int8_t bit = decode_bit();
if (bit < 0) goto exception;
m_code = (m_code << 1) | bit;
}
if (m_ix != IX_MAX) return;
// And when all samples have been read push an event
Event::push(Event::RECEIVE_COMPLETED_TYPE, this);
exception:
m_start = 0L;
}
void
Touch::run()
{
// Check if sampling should be initiated
if (!m_sampling) {
mode(INPUT_MODE);
m_sampling = true;
return;
}
// Sample the pin and discharge
uint8_t state = is_clear();
mode(OUTPUT_MODE);
clear();
m_sampling = false;
// Was the pin discharge during the sampling period
if (state) {
m_start = RTT::millis();
if (!m_touched) {
on_touch();
m_touched = true;
}
return;
}
// The pin was discharge; low-pass filter pin change
if (m_touched && (RTT::since(m_start) > THRESHOLD)) {
m_touched = false;
}
}
int main(void)
{
set_input(DDRB, Switch1);
set_output(DDRB, GreenLED);
set_output(DDRB, RedLED);
while(1)
{
if(is_clear(PINB, Switch1) && State == 0)
{
output_high(PORTB, GreenLED);
output_low(PORTB, RedLED);
}
else
{
output_high(PORTB, RedLED);
output_low(PORTB, GreenLED);
}
switch (State)
{
case BUTTON_PRESS:
break;
case LIGHT_LED:
break;
case LIGHT_LED:
}
if(is_clear(PINB, Switch1))
{
output_high(PORTB, GreenLED);
output_low(PORTB, RedLED);
}
else
{
output_high(PORTB, RedLED);
output_low(PORTB, GreenLED);
}
_delay_ms(5);
}
}
//--------- Begin of function HelpSaveScreen::show_area --------//
//!
void HelpSaveScreen::show_area() {
if( is_clear() ) // already restored, or not saved yet
return;
if( hiding_flag && hiding_flag == hide_area_count ) {
vga_front.read_bitmapW( save_scr_x1, save_scr_y1, save_scr_x2, save_scr_y2,
save_scr_buf->bitmap_ptr() );
hiding_flag = 0;
}
--hide_area_count;
err_when( hide_area_count < 0 );
}
//--------- Begin of function HelpSaveScreen::hide_area --------//
//!
void HelpSaveScreen::hide_area(int x1, int y1, int x2, int y2 ) {
if( is_clear() ) // there is already a screen saved
return;
++hide_area_count;
if( !hiding_flag && m.is_touch( x1, y1, x2, y2,
save_scr_x1, save_scr_y1, save_scr_x2, save_scr_y2 ) ) {
// don't handle mouse cursor
vga.active_buf->put_bitmapW( save_scr_x1, save_scr_y1, save_scr_buf->bitmap_ptr() );
hiding_flag = hide_area_count;
}
}
//this function called when backoff timer expires
//THIS IS IN AN INTERRUPT CONTEXT
static void backoff_alarm_func(void *user_data)
{
if (is_clear ()) {
//channel clear, fire off send state machine
sent_flag = true;
mos_thread_resume(sendThread);
backoff_alarm.reset_to = 0;
}
else {
//channel busy, wait again
rand_val = random () % congestBackoff + 1;
backoff_alarm.reset_to = rand_val * 2;
//mos_alarm(&backoff_alarm, rand_val * 2);
}
}
//--------- Begin of function HelpSaveScreen::rest_scr --------//
//!
void HelpSaveScreen::rest_scr(VgaBuf* vgaBuf, int keepUnclear ) {
if( is_clear() ) // already restored, or not saved yet
return;
err_when( save_scr_x1>save_scr_x2 || save_scr_y1>save_scr_y2 ||
save_scr_x1<0 || save_scr_y1<0 || save_scr_x2>=VGA_WIDTH || save_scr_y2>=VGA_HEIGHT );
if( !vgaBuf )
vgaBuf = &vga_front;
// mouse.hide_area( save_scr_x1, save_scr_y1, save_scr_x2, save_scr_y2 );
vgaBuf->put_bitmapW( save_scr_x1, save_scr_y1, save_scr_buf->bitmap_ptr() );
// mouse.show_area();
if( !keepUnclear )
clear(); // state that it has been restored.
}
bool
OWI::reset()
{
uint8_t retry = 4;
uint8_t res = 0;
do {
set_mode(OUTPUT_MODE);
set();
clear();
DELAY(480);
set();
synchronized {
set_mode(INPUT_MODE);
DELAY(70);
res = is_clear();
}
DELAY(410);
} while (retry-- && !res);
return (res != 0);
}
int main(void)
{
set_input(DDRB, Switch1);
set_output(DDRB, GreenLED);
set_output(DDRB, RedLED);
while(1)
{
if(is_clear(PINB, Switch1))
{
output_high(PORTB, GreenLED);
output_low(PORTB, RedLED);
}
else
{
output_high(PORTB, RedLED);
output_low(PORTB, GreenLED);
}
_delay_ms(5);
}
}
/********************************************************************
* Function: void BlinkUSBStatus(void)
*
* PreCondition: None
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: BlinkUSBStatus turns on and off LEDs
* corresponding to the USB device state.
*
* Note: mLED macros can be found in HardwareProfile.h
* USBDeviceState is declared and updated in
* usb_device.c.
*******************************************************************/
void BlinkUSBStatus(void)
{
static WORD led_count=0;
char a=0;
if(led_count == 0)led_count = 10000U;
led_count--;
#define mLED_Both_Off() {mLED_1_Off();mLED_2_Off();}
#define mLED_Both_On() {mLED_1_On();mLED_2_On();}
#define mLED_Only_1_On() {mLED_1_On();mLED_2_Off();}
#define mLED_Only_2_On() {mLED_1_Off();mLED_2_On();}
a = is_clear();
if(a=1)
{
mLED_3_On();
} else {
mLED_3_Off();
}
if(USBSuspendControl == 1)
{
if(led_count==0)
{
mLED_1_Toggle();
if(mGetLED_1())
{
mLED_2_On();
}
else
{
mLED_2_Off();
}
}//end if
}
else
{
if(USBDeviceState == DETACHED_STATE)
{
mLED_Both_Off();
}
else if(USBDeviceState == ATTACHED_STATE)
{
mLED_Both_On();
}
else if(USBDeviceState == POWERED_STATE)
{
mLED_Only_1_On();
}
else if(USBDeviceState == DEFAULT_STATE)
{
mLED_Only_2_On();
}
else if(USBDeviceState == ADDRESS_STATE)
{
if(led_count == 0)
{
mLED_1_Toggle();
mLED_2_Off();
}//end if
}
else if(USBDeviceState == CONFIGURED_STATE)
{
if(led_count==0)
{
mLED_1_Toggle();
if(mGetLED_1())
{
mLED_2_Off();
}
else
{
mLED_2_On();
}
}//end if
}//end if(...)
}//end if(UCONbits.SUSPND...)
}//end BlinkUSBStatus