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a971cacb06
Firmware/Marlin/endstops.cpp
Scott Lahteine a971cacb06 Add Endstop Noise Filter 
Co-Authored-By: ejtagle <ejtagle@hotmail.com>
2018-05-21 15:32:26 -05:00

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* endstops.cpp - A singleton object to manage endstops
*/
#include "Marlin.h"
#include "cardreader.h"
#include "endstops.h"
#include "temperature.h"
#include "stepper.h"
#include "ultralcd.h"
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
#include "endstop_interrupts.h"
#endif
// TEST_ENDSTOP: test the current status of an endstop
#define TEST_ENDSTOP(ENDSTOP) (TEST(live_state, ENDSTOP))
#if HAS_BED_PROBE
#define ENDSTOPS_ENABLED (endstops.enabled || endstops.z_probe_enabled)
#else
#define ENDSTOPS_ENABLED endstops.enabled
#endif
Endstops endstops;
// public:
bool Endstops::enabled, Endstops::enabled_globally; // Initialized by settings.load()
volatile uint8_t Endstops::hit_state;
Endstops::esbits_t Endstops::live_state = 0;
#if ENABLED(ENDSTOP_NOISE_FILTER)
Endstops::esbits_t Endstops::old_live_state,
Endstops::validated_live_state;
uint8_t Endstops::endstop_poll_count;
#endif
#if HAS_BED_PROBE
volatile bool Endstops::z_probe_enabled = false;
#endif
// Initialized by settings.load()
#if ENABLED(X_DUAL_ENDSTOPS)
float Endstops::x_endstop_adj;
#endif
#if ENABLED(Y_DUAL_ENDSTOPS)
float Endstops::y_endstop_adj;
#endif
#if ENABLED(Z_DUAL_ENDSTOPS)
float Endstops::z_endstop_adj;
#endif
/**
* Class and Instance Methods
*/
void Endstops::init() {
#if HAS_X_MIN
#if ENABLED(ENDSTOPPULLUP_XMIN)
SET_INPUT_PULLUP(X_MIN_PIN);
#else
SET_INPUT(X_MIN_PIN);
#endif
#endif
#if HAS_X2_MIN
#if ENABLED(ENDSTOPPULLUP_XMIN)
SET_INPUT_PULLUP(X2_MIN_PIN);
#else
SET_INPUT(X2_MIN_PIN);
#endif
#endif
#if HAS_Y_MIN
#if ENABLED(ENDSTOPPULLUP_YMIN)
SET_INPUT_PULLUP(Y_MIN_PIN);
#else
SET_INPUT(Y_MIN_PIN);
#endif
#endif
#if HAS_Y2_MIN
#if ENABLED(ENDSTOPPULLUP_YMIN)
SET_INPUT_PULLUP(Y2_MIN_PIN);
#else
SET_INPUT(Y2_MIN_PIN);
#endif
#endif
#if HAS_Z_MIN
#if ENABLED(ENDSTOPPULLUP_ZMIN)
SET_INPUT_PULLUP(Z_MIN_PIN);
#else
SET_INPUT(Z_MIN_PIN);
#endif
#endif
#if HAS_Z2_MIN
#if ENABLED(ENDSTOPPULLUP_ZMIN)
SET_INPUT_PULLUP(Z2_MIN_PIN);
#else
SET_INPUT(Z2_MIN_PIN);
#endif
#endif
#if HAS_X_MAX
#if ENABLED(ENDSTOPPULLUP_XMAX)
SET_INPUT_PULLUP(X_MAX_PIN);
#else
SET_INPUT(X_MAX_PIN);
#endif
#endif
#if HAS_X2_MAX
#if ENABLED(ENDSTOPPULLUP_XMAX)
SET_INPUT_PULLUP(X2_MAX_PIN);
#else
SET_INPUT(X2_MAX_PIN);
#endif
#endif
#if HAS_Y_MAX
#if ENABLED(ENDSTOPPULLUP_YMAX)
SET_INPUT_PULLUP(Y_MAX_PIN);
#else
SET_INPUT(Y_MAX_PIN);
#endif
#endif
#if HAS_Y2_MAX
#if ENABLED(ENDSTOPPULLUP_YMAX)
SET_INPUT_PULLUP(Y2_MAX_PIN);
#else
SET_INPUT(Y2_MAX_PIN);
#endif
#endif
#if HAS_Z_MAX
#if ENABLED(ENDSTOPPULLUP_ZMAX)
SET_INPUT_PULLUP(Z_MAX_PIN);
#else
SET_INPUT(Z_MAX_PIN);
#endif
#endif
#if HAS_Z2_MAX
#if ENABLED(ENDSTOPPULLUP_ZMAX)
SET_INPUT_PULLUP(Z2_MAX_PIN);
#else
SET_INPUT(Z2_MAX_PIN);
#endif
#endif
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
#if ENABLED(ENDSTOPPULLUP_ZMIN_PROBE)
SET_INPUT_PULLUP(Z_MIN_PROBE_PIN);
#else
SET_INPUT(Z_MIN_PROBE_PIN);
#endif
#endif
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
setup_endstop_interrupts();
#endif
// Enable endstops
enable_globally(
#if ENABLED(ENDSTOPS_ALWAYS_ON_DEFAULT)
true
#else
false
#endif
);
} // Endstops::init
// Called from ISR. A change was detected. Find out what happened!
void Endstops::check_possible_change() { if (ENDSTOPS_ENABLED) endstops.update(); }
// Called from ISR: Poll endstop state if required
void Endstops::poll() {
#if ENABLED(PINS_DEBUGGING)
endstops.run_monitor(); // report changes in endstop status
#endif
#if DISABLED(ENDSTOP_INTERRUPTS_FEATURE) || ENABLED(ENDSTOP_NOISE_FILTER)
if (ENDSTOPS_ENABLED) endstops.update();
#endif
}
void Endstops::enable_globally(const bool onoff) {
enabled_globally = enabled = onoff;
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
if (onoff) endstops.update(); // If enabling, update state now
#endif
}
// Enable / disable endstop checking
void Endstops::enable(const bool onoff) {
enabled = onoff;
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
if (onoff) endstops.update(); // If enabling, update state now
#endif
}
// Disable / Enable endstops based on ENSTOPS_ONLY_FOR_HOMING and global enable
void Endstops::not_homing() {
enabled = enabled_globally;
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
if (enabled) endstops.update(); // If enabling, update state now
#endif
}
// Clear endstops (i.e., they were hit intentionally) to suppress the report
void Endstops::hit_on_purpose() {
hit_state = 0;
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
if (enabled) endstops.update(); // If enabling, update state now
#endif
}
// Enable / disable endstop z-probe checking
#if HAS_BED_PROBE
void Endstops::enable_z_probe(bool onoff) {
z_probe_enabled = onoff;
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
if (enabled) endstops.update(); // If enabling, update state now
#endif
}
#endif
#if ENABLED(PINS_DEBUGGING)
void Endstops::run_monitor() {
if (!monitor_flag) return;
static uint8_t monitor_count = 16; // offset this check from the others
monitor_count += _BV(1); // 15 Hz
monitor_count &= 0x7F;
if (!monitor_count) monitor(); // report changes in endstop status
}
#endif
void Endstops::report_state() {
if (hit_state) {
#if ENABLED(ULTRA_LCD)
char chrX = ' ', chrY = ' ', chrZ = ' ', chrP = ' ';
#define _SET_STOP_CHAR(A,C) (chr## A = C)
#else
#define _SET_STOP_CHAR(A,C) ;
#endif
#define _ENDSTOP_HIT_ECHO(A,C) do{ \
SERIAL_ECHOPAIR(" " STRINGIFY(A) ":", planner.triggered_position_mm(_AXIS(A))); \
_SET_STOP_CHAR(A,C); }while(0)
#define _ENDSTOP_HIT_TEST(A,C) \
if (TEST(hit_state, A ##_MIN) || TEST(hit_state, A ##_MAX)) \
_ENDSTOP_HIT_ECHO(A,C)
#define ENDSTOP_HIT_TEST_X() _ENDSTOP_HIT_TEST(X,'X')
#define ENDSTOP_HIT_TEST_Y() _ENDSTOP_HIT_TEST(Y,'Y')
#define ENDSTOP_HIT_TEST_Z() _ENDSTOP_HIT_TEST(Z,'Z')
SERIAL_ECHO_START();
SERIAL_ECHOPGM(MSG_ENDSTOPS_HIT);
ENDSTOP_HIT_TEST_X();
ENDSTOP_HIT_TEST_Y();
ENDSTOP_HIT_TEST_Z();
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
#define P_AXIS Z_AXIS
if (TEST(hit_state, Z_MIN_PROBE)) _ENDSTOP_HIT_ECHO(P, 'P');
#endif
SERIAL_EOL();
#if ENABLED(ULTRA_LCD)
lcd_status_printf_P(0, PSTR(MSG_LCD_ENDSTOPS " %c %c %c %c"), chrX, chrY, chrZ, chrP);
#endif
hit_on_purpose();
#if ENABLED(ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED) && ENABLED(SDSUPPORT)
if (planner.abort_on_endstop_hit) {
card.sdprinting = false;
card.closefile();
quickstop_stepper();
thermalManager.disable_all_heaters(); // switch off all heaters.
}
#endif
}
} // Endstops::report_state
void Endstops::M119() {
SERIAL_PROTOCOLLNPGM(MSG_M119_REPORT);
#define ES_REPORT(AXIS) do{ \
SERIAL_PROTOCOLPGM(MSG_##AXIS); \
SERIAL_PROTOCOLLN(((READ(AXIS##_PIN)^AXIS##_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); \
}while(0)
#if HAS_X_MIN
ES_REPORT(X_MIN);
#endif
#if HAS_X2_MIN
ES_REPORT(X2_MIN);
#endif
#if HAS_X_MAX
ES_REPORT(X_MAX);
#endif
#if HAS_X2_MAX
ES_REPORT(X2_MAX);
#endif
#if HAS_Y_MIN
ES_REPORT(Y_MIN);
#endif
#if HAS_Y2_MIN
ES_REPORT(Y2_MIN);
#endif
#if HAS_Y_MAX
ES_REPORT(Y_MAX);
#endif
#if HAS_Y2_MAX
ES_REPORT(Y2_MAX);
#endif
#if HAS_Z_MIN
ES_REPORT(Z_MIN);
#endif
#if HAS_Z2_MIN
ES_REPORT(Z2_MIN);
#endif
#if HAS_Z_MAX
ES_REPORT(Z_MAX);
#endif
#if HAS_Z2_MAX
ES_REPORT(Z2_MAX);
#endif
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
SERIAL_PROTOCOLPGM(MSG_Z_PROBE);
SERIAL_PROTOCOLLN(((READ(Z_MIN_PROBE_PIN)^Z_MIN_PROBE_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN));
#endif
#if ENABLED(FILAMENT_RUNOUT_SENSOR)
SERIAL_PROTOCOLPGM(MSG_FILAMENT_RUNOUT_SENSOR);
SERIAL_PROTOCOLLN(((READ(FIL_RUNOUT_PIN)^FIL_RUNOUT_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN));
#endif
} // Endstops::M119
// The following routines are called from an ISR context. It could be the temperature ISR, the
// endstop ISR or the Stepper ISR.
#define _ENDSTOP(AXIS, MINMAX) AXIS ##_## MINMAX
#define _ENDSTOP_PIN(AXIS, MINMAX) AXIS ##_## MINMAX ##_PIN
#define _ENDSTOP_INVERTING(AXIS, MINMAX) AXIS ##_## MINMAX ##_ENDSTOP_INVERTING
// Check endstops - Could be called from ISR!
void Endstops::update() {
#define SET_BIT(N,B,TF) do{ if (TF) SBI(N,B); else CBI(N,B); }while(0)
// UPDATE_ENDSTOP_BIT: set the current endstop bits for an endstop to its status
#define UPDATE_ENDSTOP_BIT(AXIS, MINMAX) SET_BIT(live_state, _ENDSTOP(AXIS, MINMAX), (READ(_ENDSTOP_PIN(AXIS, MINMAX)) != _ENDSTOP_INVERTING(AXIS, MINMAX)))
// COPY_BIT: copy the value of SRC_BIT to DST_BIT in DST
#define COPY_BIT(DST, SRC_BIT, DST_BIT) SET_BIT(DST, DST_BIT, TEST(DST, SRC_BIT))
#if ENABLED(G38_PROBE_TARGET) && PIN_EXISTS(Z_MIN_PROBE) && !(CORE_IS_XY || CORE_IS_XZ)
// If G38 command is active check Z_MIN_PROBE for ALL movement
if (G38_move) {
UPDATE_ENDSTOP_BIT(Z, MIN_PROBE);
}
#endif
/**
* Define conditions for checking endstops
*/
#if IS_CORE
#define S_(N) stepper.movement_non_null(CORE_AXIS_##N)
#define D_(N) stepper.motor_direction(CORE_AXIS_##N)
#endif
#if CORE_IS_XY || CORE_IS_XZ
/**
* Head direction in -X axis for CoreXY and CoreXZ bots.
*
* If steps differ, both axes are moving.
* If DeltaA == -DeltaB, the movement is only in the 2nd axis (Y or Z, handled below)
* If DeltaA == DeltaB, the movement is only in the 1st axis (X)
*/
#if ENABLED(COREXY) || ENABLED(COREXZ)
#define X_CMP ==
#else
#define X_CMP !=
#endif
#define X_MOVE_TEST ( S_(1) != S_(2) || (S_(1) > 0 && D_(1) X_CMP D_(2)) )
#define X_AXIS_HEAD X_HEAD
#else
#define X_MOVE_TEST stepper.movement_non_null(X_AXIS)
#define X_AXIS_HEAD X_AXIS
#endif
#if CORE_IS_XY || CORE_IS_YZ
/**
* Head direction in -Y axis for CoreXY / CoreYZ bots.
*
* If steps differ, both axes are moving
* If DeltaA == DeltaB, the movement is only in the 1st axis (X or Y)
* If DeltaA == -DeltaB, the movement is only in the 2nd axis (Y or Z)
*/
#if ENABLED(COREYX) || ENABLED(COREYZ)
#define Y_CMP ==
#else
#define Y_CMP !=
#endif
#define Y_MOVE_TEST ( S_(1) != S_(2) || (S_(1) > 0 && D_(1) Y_CMP D_(2)) )
#define Y_AXIS_HEAD Y_HEAD
#else
#define Y_MOVE_TEST stepper.movement_non_null(Y_AXIS)
#define Y_AXIS_HEAD Y_AXIS
#endif
#if CORE_IS_XZ || CORE_IS_YZ
/**
* Head direction in -Z axis for CoreXZ or CoreYZ bots.
*
* If steps differ, both axes are moving
* If DeltaA == DeltaB, the movement is only in the 1st axis (X or Y, already handled above)
* If DeltaA == -DeltaB, the movement is only in the 2nd axis (Z)
*/
#if ENABLED(COREZX) || ENABLED(COREZY)
#define Z_CMP ==
#else
#define Z_CMP !=
#endif
#define Z_MOVE_TEST ( S_(1) != S_(2) || (S_(1) > 0 && D_(1) Z_CMP D_(2)) )
#define Z_AXIS_HEAD Z_HEAD
#else
#define Z_MOVE_TEST stepper.movement_non_null(Z_AXIS)
#define Z_AXIS_HEAD Z_AXIS
#endif
// With Dual X, endstops are only checked in the homing direction for the active extruder
#if ENABLED(DUAL_X_CARRIAGE)
#define E0_ACTIVE stepper.movement_extruder() == 0
#define X_MIN_TEST ((X_HOME_DIR < 0 && E0_ACTIVE) || (X2_HOME_DIR < 0 && !E0_ACTIVE))
#define X_MAX_TEST ((X_HOME_DIR > 0 && E0_ACTIVE) || (X2_HOME_DIR > 0 && !E0_ACTIVE))
#else
#define X_MIN_TEST true
#define X_MAX_TEST true
#endif
/**
* Check and update endstops according to conditions
*/
if (X_MOVE_TEST) {
if (stepper.motor_direction(X_AXIS_HEAD)) { // -direction
#if HAS_X_MIN
#if ENABLED(X_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(X, MIN);
#if HAS_X2_MIN
UPDATE_ENDSTOP_BIT(X2, MIN);
#else
COPY_BIT(live_state, X_MIN, X2_MIN);
#endif
#else
if (X_MIN_TEST) UPDATE_ENDSTOP_BIT(X, MIN);
#endif
#endif
}
else { // +direction
#if HAS_X_MAX
#if ENABLED(X_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(X, MAX);
#if HAS_X2_MAX
UPDATE_ENDSTOP_BIT(X2, MAX);
#else
COPY_BIT(live_state, X_MAX, X2_MAX);
#endif
#else
if (X_MAX_TEST) UPDATE_ENDSTOP_BIT(X, MAX);
#endif
#endif
}
}
if (Y_MOVE_TEST) {
if (stepper.motor_direction(Y_AXIS_HEAD)) { // -direction
#if HAS_Y_MIN
#if ENABLED(Y_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(Y, MIN);
#if HAS_Y2_MIN
UPDATE_ENDSTOP_BIT(Y2, MIN);
#else
COPY_BIT(live_state, Y_MIN, Y2_MIN);
#endif
#else
UPDATE_ENDSTOP_BIT(Y, MIN);
#endif
#endif
}
else { // +direction
#if HAS_Y_MAX
#if ENABLED(Y_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(Y, MAX);
#if HAS_Y2_MAX
UPDATE_ENDSTOP_BIT(Y2, MAX);
#else
COPY_BIT(live_state, Y_MAX, Y2_MAX);
#endif
#else
UPDATE_ENDSTOP_BIT(Y, MAX);
#endif
#endif
}
}
if (Z_MOVE_TEST) {
if (stepper.motor_direction(Z_AXIS_HEAD)) { // Z -direction. Gantry down, bed up.
#if HAS_Z_MIN
#if ENABLED(Z_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(Z, MIN);
#if HAS_Z2_MIN
UPDATE_ENDSTOP_BIT(Z2, MIN);
#else
COPY_BIT(live_state, Z_MIN, Z2_MIN);
#endif
#else
#if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
if (z_probe_enabled) UPDATE_ENDSTOP_BIT(Z, MIN);
#else
UPDATE_ENDSTOP_BIT(Z, MIN);
#endif
#endif
#endif
// When closing the gap check the enabled probe
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
if (z_probe_enabled) {
UPDATE_ENDSTOP_BIT(Z, MIN_PROBE);
}
#endif
}
else { // Z +direction. Gantry up, bed down.
#if HAS_Z_MAX
// Check both Z dual endstops
#if ENABLED(Z_DUAL_ENDSTOPS)
UPDATE_ENDSTOP_BIT(Z, MAX);
#if HAS_Z2_MAX
UPDATE_ENDSTOP_BIT(Z2, MAX);
#else
COPY_BIT(live_state, Z_MAX, Z2_MAX);
#endif
// If this pin is not hijacked for the bed probe
// then it belongs to the Z endstop
#elif DISABLED(Z_MIN_PROBE_ENDSTOP) || Z_MAX_PIN != Z_MIN_PROBE_PIN
UPDATE_ENDSTOP_BIT(Z, MAX);
#endif
#endif
}
}
// All endstops were updated.
#if ENABLED(ENDSTOP_NOISE_FILTER)
if (old_live_state != live_state) { // We detected a change. Reinit the timeout
/**
* Filtering out noise on endstops requires a delayed decision. Let's assume, due to noise,
* that 50% of endstop signal samples are good and 50% are bad (assuming normal distribution
* of random noise). Then the first sample has a 50% chance to be good or bad. The 2nd sample
* also has a 50% chance to be good or bad. The chances of 2 samples both being bad becomes
* 50% of 50%, or 25%. That was the previous implementation of Marlin endstop handling. It
* reduces chances of bad readings in half, at the cost of 1 extra sample period, but chances
* still exist. The only way to reduce them further is to increase the number of samples.
* To reduce the chance to 1% (1/128th) requires 7 samples (adding 7ms of delay).
*/
endstop_poll_count = 7;
old_live_state = live_state;
}
else if (endstop_poll_count && !--endstop_poll_count)
validated_live_state = live_state;
#else
// Lets accept the new endstop values as valid - We assume hardware filtering of lines
esbits_t validated_live_state = live_state;
#endif
// Endstop readings are validated in validated_live_state
// Test the current status of an endstop
#define TEST_ENDSTOP(ENDSTOP) (TEST(validated_live_state, ENDSTOP))
// Record endstop was hit
#define _ENDSTOP_HIT(AXIS, MINMAX) SBI(hit_state, _ENDSTOP(AXIS, MINMAX))
// Call the endstop triggered routine for single endstops
#define PROCESS_ENDSTOP(AXIS,MINMAX) do { \
if (TEST_ENDSTOP(_ENDSTOP(AXIS, MINMAX))) { \
_ENDSTOP_HIT(AXIS, MINMAX); \
planner.endstop_triggered(_AXIS(AXIS)); \
} \
}while(0)
// Call the endstop triggered routine for single endstops
#define PROCESS_DUAL_ENDSTOP(AXIS1, AXIS2, MINMAX) do { \
if (TEST_ENDSTOP(_ENDSTOP(AXIS1, MINMAX)) || TEST_ENDSTOP(_ENDSTOP(AXIS2, MINMAX))) { \
_ENDSTOP_HIT(AXIS1, MINMAX); \
planner.endstop_triggered(_AXIS(AXIS1)); \
} \
}while(0)
#if ENABLED(G38_PROBE_TARGET) && PIN_EXISTS(Z_MIN_PROBE) && !(CORE_IS_XY || CORE_IS_XZ)
// If G38 command is active check Z_MIN_PROBE for ALL movement
if (G38_move) {
if (TEST_ENDSTOP(_ENDSTOP(Z, MIN_PROBE))) {
if (stepper.movement_non_null(_AXIS(X))) { _ENDSTOP_HIT(X, MIN); planner.endstop_triggered(_AXIS(X)); }
else if (stepper.movement_non_null(_AXIS(Y))) { _ENDSTOP_HIT(Y, MIN); planner.endstop_triggered(_AXIS(Y)); }
else if (stepper.movement_non_null(_AXIS(Z))) { _ENDSTOP_HIT(Z, MIN); planner.endstop_triggered(_AXIS(Z)); }
G38_endstop_hit = true;
}
}
#endif
// Now, we must signal, after validation, if an endstop limit is pressed or not
if (X_MOVE_TEST) {
if (stepper.motor_direction(X_AXIS_HEAD)) { // -direction
#if HAS_X_MIN
#if ENABLED(X_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(X, X2, MIN);
#else
if (X_MIN_TEST) PROCESS_ENDSTOP(X, MIN);
#endif
#endif
}
else { // +direction
#if HAS_X_MAX
#if ENABLED(X_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(X, X2, MAX);
#else
if (X_MAX_TEST) PROCESS_ENDSTOP(X, MAX);
#endif
#endif
}
}
if (Y_MOVE_TEST) {
if (stepper.motor_direction(Y_AXIS_HEAD)) { // -direction
#if HAS_Y_MIN
#if ENABLED(Y_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(Y, Y2, MIN);
#else
PROCESS_ENDSTOP(Y, MIN);
#endif
#endif
}
else { // +direction
#if HAS_Y_MAX
#if ENABLED(Y_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(Y, Y2, MAX);
#else
PROCESS_ENDSTOP(Y, MAX);
#endif
#endif
}
}
if (Z_MOVE_TEST) {
if (stepper.motor_direction(Z_AXIS_HEAD)) { // Z -direction. Gantry down, bed up.
#if HAS_Z_MIN
#if ENABLED(Z_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(Z, Z2, MIN);
#else
#if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
if (z_probe_enabled) PROCESS_ENDSTOP(Z, MIN);
#else
PROCESS_ENDSTOP(Z, MIN);
#endif
#endif
#endif
// When closing the gap check the enabled probe
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
if (z_probe_enabled) PROCESS_ENDSTOP(Z, MIN_PROBE);
#endif
}
else { // Z +direction. Gantry up, bed down.
#if HAS_Z_MAX
#if ENABLED(Z_DUAL_ENDSTOPS)
PROCESS_DUAL_ENDSTOP(Z, Z2, MAX);
#elif DISABLED(Z_MIN_PROBE_ENDSTOP) || Z_MAX_PIN != Z_MIN_PROBE_PIN
// If this pin is not hijacked for the bed probe
// then it belongs to the Z endstop
PROCESS_ENDSTOP(Z, MAX);
#endif
#endif
}
}
} // Endstops::update()
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