Rename setTimer() to timer_set() for more consistency.

Pure cosmetical change.

Performance check:

$ cd testcases
$ ./run-in-simulavr.sh short-moves.gcode smooth-curves.gcode triangle-odd.gcode
[...]
    SIZES             ATmega...  '168    '328(P)    '644(P)    '1280
    FLASH  : 20518 bytes         144%        67%        33%      16%
    RAM    :  2188 bytes         214%       107%        54%      27%
    EEPROM :    32 bytes           4%         2%         2%       1%

short-moves.gcode statistics:
LED on occurences: 838.
LED on time minimum: 302 clock cycles.
LED on time maximum: 713 clock cycles.
LED on time average: 308.72 clock cycles.

smooth-curves.gcode statistics:
LED on occurences: 8585.
LED on time minimum: 307 clock cycles.
LED on time maximum: 710 clock cycles.
LED on time average: 358.051 clock cycles.

triangle-odd.gcode statistics:
LED on occurences: 1636.
LED on time minimum: 302 clock cycles.
LED on time maximum: 708 clock cycles.
LED on time average: 330.322 clock cycles.

dda.c

@@ -322,7 +322,7 @@ void dda_create(DDA *dda, TARGET *target) {
 			// 2^32/6000 is about 715mm which should be plenty
 
 			// changed * 10 to * (F_CPU / 100000) so we can work in cpu_ticks rather than microseconds.
-			// timer.c setTimer() routine altered for same reason
+			// timer.c timer_set() routine altered for same reason
 
 			// changed distance * 6000 .. * F_CPU / 100000 to
 			//         distance * 2400 .. * F_CPU / 40000 so we can move a distance of up to 1800mm without overflowing
@@ -527,7 +527,7 @@ void dda_start(DDA *dda) {
 		dda->live = 1;
 
 		// set timeout for first step
-    setTimer(dda->c);
+    timer_set(dda->c);
 	}
 	// else just a speed change, keep dda->live = 0
 
@@ -721,7 +721,7 @@ void dda_step(DDA *dda) {
 	}
   else {
 		psu_timeout = 0;
-    setTimer(dda->c);
+    timer_set(dda->c);
   }
 
 	// turn off step outputs, hopefully they've been on long enough by now to register with the drivers

dda_queue.c

@@ -82,7 +82,7 @@ void queue_step() {
 	DDA* current_movebuffer = &movebuffer[mb_tail];
 	if (current_movebuffer->live) {
 		if (current_movebuffer->waitfor_temp) {
-			setTimer(HEATER_WAIT_TIMEOUT);
+      timer_set(HEATER_WAIT_TIMEOUT);
 			if (temp_achieved()) {
 				current_movebuffer->live = current_movebuffer->done = 0;
 				serial_writestr_P(PSTR("Temp achieved\n"));
@@ -139,7 +139,7 @@ void enqueue_home(TARGET *t, uint8_t endstop_check, uint8_t endstop_stop_cond) {
 
 	if (isdead) {
 		next_move();
-		// Compensate for the cli() in setTimer().
+    // Compensate for the cli() in timer_set().
 		sei();
 	}
 }
@@ -158,14 +158,14 @@ void next_move() {
 		uint8_t t = mb_tail + 1;
 		t &= (MOVEBUFFER_SIZE - 1);
 		DDA* current_movebuffer = &movebuffer[t];
-		// tail must be set before setTimer call as setTimer
-		// reenables the timer interrupt, potentially exposing
-		// mb_tail to the timer interrupt routine. 
+    // Tail must be set before calling timer_set(), as timer_set() reenables
+    // the timer interrupt, potentially exposing mb_tail to the timer
+    // interrupt routine. 
 		mb_tail = t;
 		if (current_movebuffer->waitfor_temp) {
 			serial_writestr_P(PSTR("Waiting for target temp\n"));
 			current_movebuffer->live = 1;
-			setTimer(HEATER_WAIT_TIMEOUT);
+      timer_set(HEATER_WAIT_TIMEOUT);
 		}
 		else {
 			dda_start(current_movebuffer);

extruder/timer.c

@@ -90,7 +90,7 @@ ISR(TIMER1_COMPA_vect) {
 
 	next_step_time -= 65536;
 
-	// similar algorithm as described in setTimer below.
+  // Similar algorithm as described in timer_set() below.
 	if (next_step_time < 65536) {
 		OCR1A = (OCR1A + next_step_time) & 0xFFFF;
 	} else if(next_step_time < 75536){
@@ -103,8 +103,7 @@ ISR(TIMER1_COMPA_vect) {
 
 /// initialise timer and enable system clock interrupt.
 /// step interrupt is enabled later when we start using it
-void timer_init()
-{
+void timer_init() {
 	// no outputs
 	TCCR1A = 0;
 	// Normal Mode
@@ -117,8 +116,7 @@ void timer_init()
 
 #ifdef	HOST
 /// specify how long until the step timer should fire
-void setTimer(uint32_t delay)
-{
+void timer_set(uint32_t delay) {
 	// save interrupt flag
 	uint8_t sreg = SREG;
 	uint16_t step_start = 0;

extruder/timer.h

@@ -23,7 +23,7 @@ timer stuff
 */
 void timer_init(void) __attribute__ ((cold));
 
-void setTimer(uint32_t delay);
+void timer_set(uint32_t delay);
 
 void timer_stop(void);
 

simulator.h

@@ -171,7 +171,7 @@ void sim_gcode(const char msg[]);
 void sim_timer_init(uint8_t scale);
 
 void sim_timer_stop(void);
-void sim_setTimer(void);
+void sim_timer_set(void);
 uint16_t sim_tick_counter(void);
 uint64_t sim_runtime_ns(void); ///< Simulated run-time in nanoseconds
 void sim_time_warp(void); ///< skip ahead to next timer interrupt, when time_scale==0

simulator/timer_ext.c

@@ -161,10 +161,10 @@ static void timer1_isr(void) {
   sei();
 
   // Setup next timer
-  sim_setTimer();
+  sim_timer_set();
 }
 
-void sim_setTimer() {
+void sim_timer_set() {
   // Set callbacks for COMPA and COMPB timers
   uint32_t nextA = 0, nextB = 0;
   uint16_t now = sim_tick_counter();

timer.c

@@ -69,7 +69,7 @@ ISR(TIMER1_COMPA_vect) {
 
 	next_step_time -= 65536;
 
-	// similar algorithm as described in setTimer below.
+  // Similar algorithm as described in timer_set() below.
 	if (next_step_time < 65536) {
 		OCR1A = (OCR1A + next_step_time) & 0xFFFF;
 	} else if(next_step_time < 75536){
@@ -82,8 +82,7 @@ ISR(TIMER1_COMPA_vect) {
 
 /// initialise timer and enable system clock interrupt.
 /// step interrupt is enabled later when we start using it
-void timer_init()
-{
+void timer_init() {
 	// no outputs
 	TCCR1A = 0;
 	// Normal Mode
@@ -94,7 +93,7 @@ void timer_init()
 	TIMSK1 = MASK(OCIE1B);
 #ifdef SIMULATOR
   // Tell simulator
-  sim_setTimer();
+  sim_timer_set();
 #endif
 }
 
@@ -107,8 +106,7 @@ void timer_init()
 	as late as possible. If you use it from outside the step interrupt,
 	do a sei() after it to make the interrupt actually fire.
 */
-void setTimer(uint32_t delay)
-{
+void timer_set(uint32_t delay) {
 	uint16_t step_start = 0;
 	#ifdef ACCELERATION_TEMPORAL
 	uint16_t current_time;
@@ -177,7 +175,7 @@ void setTimer(uint32_t delay)
 	TIMSK1 |= MASK(OCIE1A);
   #ifdef SIMULATOR
     // Tell simulator
-    sim_setTimer();
+    sim_timer_set();
   #endif
 }
 

timer.h

@@ -26,7 +26,7 @@ timer stuff
 */
 void timer_init(void) __attribute__ ((cold));
 
-void setTimer(uint32_t delay);
+void timer_set(uint32_t delay);
 
 void timer_stop(void);