Separated adalight into functions
Makes the code more readable and easier to modify
This commit is contained in:
David Madison
parent
ec44b9335f
commit
6910e162d7
|
|
@ -65,6 +65,19 @@ static const uint8_t magic[] = {
|
|||
#define MODE_HEADER 0
|
||||
#define MODE_DATA 1
|
||||
|
||||
static uint8_t
|
||||
mode = MODE_HEADER;
|
||||
static int16_t
|
||||
c;
|
||||
static uint16_t
|
||||
outPos;
|
||||
static uint32_t
|
||||
bytesRemaining;
|
||||
static unsigned long
|
||||
t,
|
||||
lastByteTime,
|
||||
lastAckTime;
|
||||
|
||||
// Debug macros initialized
|
||||
#ifdef DEBUG_LED
|
||||
#define ON 1
|
||||
|
|
@ -109,23 +122,6 @@ void setup(){
|
|||
}
|
||||
|
||||
void adalight(){
|
||||
static uint8_t
|
||||
mode = MODE_HEADER;
|
||||
static uint8_t
|
||||
headPos,
|
||||
hi, lo, chk;
|
||||
int16_t
|
||||
c;
|
||||
static uint16_t
|
||||
outPos;
|
||||
static uint32_t
|
||||
bytesRemaining;
|
||||
unsigned long
|
||||
t;
|
||||
static unsigned long
|
||||
lastByteTime,
|
||||
lastAckTime;
|
||||
|
||||
Serial.print("Ada\n"); // Send ACK string to host
|
||||
|
||||
lastByteTime = lastAckTime = millis();
|
||||
|
|
@ -134,7 +130,6 @@ void adalight(){
|
|||
// has a measurable impact on this code's overall throughput.
|
||||
|
||||
for(;;) {
|
||||
|
||||
// Implementation is a simple finite-state machine.
|
||||
// Regardless of mode, check for serial input each time:
|
||||
t = millis();
|
||||
|
|
@ -143,86 +138,101 @@ void adalight(){
|
|||
lastByteTime = lastAckTime = t; // Reset timeout counters
|
||||
|
||||
switch(mode) {
|
||||
|
||||
case MODE_HEADER:
|
||||
|
||||
if(headPos < MAGICSIZE){
|
||||
if(c == magic[headPos]) headPos++;
|
||||
else headPos = 0;
|
||||
}
|
||||
else{
|
||||
switch(headPos){
|
||||
case HICHECK:
|
||||
hi = c;
|
||||
headPos++;
|
||||
break;
|
||||
case LOCHECK:
|
||||
lo = c;
|
||||
headPos++;
|
||||
break;
|
||||
case CHECKSUM:
|
||||
chk = c;
|
||||
if(chk == (hi ^ lo ^ 0x55)) {
|
||||
// Checksum looks valid. Get 16-bit LED count, add 1
|
||||
// (# LEDs is always > 0) and multiply by 3 for R,G,B.
|
||||
D_LED(ON);
|
||||
bytesRemaining = 3L * (256L * (long)hi + (long)lo + 1L);
|
||||
outPos = 0;
|
||||
memset(leds, 0, Num_Leds * sizeof(struct CRGB));
|
||||
mode = MODE_DATA; // Proceed to latch wait mode
|
||||
}
|
||||
headPos = 0; // Reset header position regardless of checksum result
|
||||
break;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case MODE_DATA:
|
||||
|
||||
if(bytesRemaining > 0) {
|
||||
if (outPos < sizeof(leds)){
|
||||
#ifdef CALIBRATE
|
||||
if(outPos < 3)
|
||||
ledsRaw[outPos++] = c;
|
||||
else{
|
||||
ledsRaw[outPos] = ledsRaw[outPos%3]; // Sets RGB data to first LED color
|
||||
outPos++;
|
||||
}
|
||||
#else
|
||||
ledsRaw[outPos++] = c; // Issue next byte
|
||||
#endif
|
||||
}
|
||||
bytesRemaining--;
|
||||
}
|
||||
if(bytesRemaining == 0) {
|
||||
// End of data -- issue latch:
|
||||
mode = MODE_HEADER; // Begin next header search
|
||||
FastLED.show();
|
||||
D_FPS;
|
||||
D_LED(OFF);
|
||||
}
|
||||
break;
|
||||
} // end switch
|
||||
} // end serial if
|
||||
case MODE_HEADER:
|
||||
headerMode();
|
||||
break;
|
||||
case MODE_DATA:
|
||||
dataMode();
|
||||
break;
|
||||
}
|
||||
}
|
||||
else {
|
||||
// No data received. If this persists, send an ACK packet
|
||||
// to host once every second to alert it to our presence.
|
||||
if((t - lastAckTime) > 1000) {
|
||||
Serial.print("Ada\n"); // Send ACK string to host
|
||||
lastAckTime = t; // Reset counter
|
||||
}
|
||||
// If no data received for an extended time, turn off all LEDs.
|
||||
if((t - lastByteTime) > SerialTimeout) {
|
||||
memset(leds, 0, Num_Leds * sizeof(struct CRGB)); //filling Led array by zeroes
|
||||
FastLED.show();
|
||||
lastByteTime = t; // Reset counter
|
||||
}
|
||||
} // end else
|
||||
} // end for(;;)
|
||||
timeouts();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
void headerMode(){
|
||||
static uint8_t
|
||||
headPos,
|
||||
hi, lo, chk;
|
||||
|
||||
if(headPos < MAGICSIZE){
|
||||
if(c == magic[headPos]) headPos++;
|
||||
else headPos = 0;
|
||||
}
|
||||
else{
|
||||
switch(headPos){
|
||||
case HICHECK:
|
||||
hi = c;
|
||||
headPos++;
|
||||
break;
|
||||
case LOCHECK:
|
||||
lo = c;
|
||||
headPos++;
|
||||
break;
|
||||
case CHECKSUM:
|
||||
chk = c;
|
||||
if(chk == (hi ^ lo ^ 0x55)) {
|
||||
// Checksum looks valid. Get 16-bit LED count, add 1
|
||||
// (# LEDs is always > 0) and multiply by 3 for R,G,B.
|
||||
D_LED(ON);
|
||||
bytesRemaining = 3L * (256L * (long)hi + (long)lo + 1L);
|
||||
outPos = 0;
|
||||
memset(leds, 0, Num_Leds * sizeof(struct CRGB));
|
||||
mode = MODE_DATA; // Proceed to latch wait mode
|
||||
}
|
||||
headPos = 0; // Reset header position regardless of checksum result
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void dataMode(){
|
||||
if(bytesRemaining > 0) {
|
||||
if (outPos < sizeof(leds)){
|
||||
dataSet();
|
||||
}
|
||||
bytesRemaining--;
|
||||
}
|
||||
if(bytesRemaining == 0) {
|
||||
// End of data -- issue latch:
|
||||
mode = MODE_HEADER; // Begin next header search
|
||||
FastLED.show();
|
||||
D_FPS;
|
||||
D_LED(OFF);
|
||||
}
|
||||
}
|
||||
|
||||
void dataSet(){
|
||||
#ifdef CALIBRATE
|
||||
if(outPos < 3)
|
||||
ledsRaw[outPos++] = c;
|
||||
else{
|
||||
ledsRaw[outPos] = ledsRaw[outPos%3]; // Sets RGB data to first LED color
|
||||
outPos++;
|
||||
}
|
||||
#else
|
||||
ledsRaw[outPos++] = c; // Issue next byte
|
||||
#endif
|
||||
}
|
||||
|
||||
void timeouts(){
|
||||
// No data received. If this persists, send an ACK packet
|
||||
// to host once every second to alert it to our presence.
|
||||
if((t - lastAckTime) > 1000) {
|
||||
Serial.print("Ada\n"); // Send ACK string to host
|
||||
lastAckTime = t; // Reset counter
|
||||
}
|
||||
// If no data received for an extended time, turn off all LEDs.
|
||||
if((t - lastByteTime) > SerialTimeout) {
|
||||
memset(leds, 0, Num_Leds * sizeof(struct CRGB)); //filling Led array by zeroes
|
||||
FastLED.show();
|
||||
lastByteTime = t; // Reset counter
|
||||
}
|
||||
}
|
||||
|
||||
void loop(){
|
||||
// loop() is avoided as even that small bit of function overhead
|
||||
// has a measurable impact on this code's overall throughput.
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue