/** * Marlin 3D Printer Firmware * Copyright (c) 2020 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 . * */ #include "../../inc/MarlinConfig.h" #include "../gcode.h" #include "../../module/stepper.h" #include "../../module/endstops.h" #if HAS_MULTI_HOTEND #include "../../module/tool_change.h" #endif #if HAS_LEVELING #include "../../feature/bedlevel/bedlevel.h" #endif #if ENABLED(SENSORLESS_HOMING) #include "../../feature/tmc_util.h" #endif #include "../../module/probe.h" #if ENABLED(BLTOUCH) #include "../../feature/bltouch.h" #endif #include "../../lcd/marlinui.h" #if ENABLED(EXTENSIBLE_UI) #include "../../lcd/extui/ui_api.h" #elif ENABLED(DWIN_CREALITY_LCD) #include "../../lcd/e3v2/creality/dwin.h" #elif ENABLED(DWIN_LCD_PROUI) #include "../../lcd/e3v2/proui/dwin.h" #endif #if HAS_L64XX // set L6470 absolute position registers to counts #include "../../libs/L64XX/L64XX_Marlin.h" #endif #if ENABLED(LASER_MOVE_G28_OFF) #include "../../feature/spindle_laser.h" #endif #define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE) #include "../../core/debug_out.h" #if ENABLED(QUICK_HOME) static void quick_home_xy() { // Pretend the current position is 0,0 current_position.set(0.0, 0.0); sync_plan_position(); const int x_axis_home_dir = TOOL_X_HOME_DIR(active_extruder); // Use a higher diagonal feedrate so axes move at homing speed const float minfr = _MIN(homing_feedrate(X_AXIS), homing_feedrate(Y_AXIS)), fr_mm_s = HYPOT(minfr, minfr); #if ENABLED(SENSORLESS_HOMING) sensorless_t stealth_states { NUM_AXIS_LIST( TERN0(X_SENSORLESS, tmc_enable_stallguard(stepperX)), TERN0(Y_SENSORLESS, tmc_enable_stallguard(stepperY)), false, false, false, false ) , TERN0(X2_SENSORLESS, tmc_enable_stallguard(stepperX2)) , TERN0(Y2_SENSORLESS, tmc_enable_stallguard(stepperY2)) }; #endif do_blocking_move_to_xy(1.5 * max_length(X_AXIS) * x_axis_home_dir, 1.5 * max_length(Y_AXIS) * Y_HOME_DIR, fr_mm_s); endstops.validate_homing_move(); current_position.set(0.0, 0.0); #if ENABLED(SENSORLESS_HOMING) && DISABLED(ENDSTOPS_ALWAYS_ON_DEFAULT) TERN_(X_SENSORLESS, tmc_disable_stallguard(stepperX, stealth_states.x)); TERN_(X2_SENSORLESS, tmc_disable_stallguard(stepperX2, stealth_states.x2)); TERN_(Y_SENSORLESS, tmc_disable_stallguard(stepperY, stealth_states.y)); TERN_(Y2_SENSORLESS, tmc_disable_stallguard(stepperY2, stealth_states.y2)); #endif } #endif // QUICK_HOME #if ENABLED(Z_SAFE_HOMING) inline void home_z_safely() { DEBUG_SECTION(log_G28, "home_z_safely", DEBUGGING(LEVELING)); // Disallow Z homing if X or Y homing is needed if (homing_needed_error(_BV(X_AXIS) | _BV(Y_AXIS))) return; sync_plan_position(); /** * Move the Z probe (or just the nozzle) to the safe homing point * (Z is already at the right height) */ constexpr xy_float_t safe_homing_xy = { Z_SAFE_HOMING_X_POINT, Z_SAFE_HOMING_Y_POINT }; #if HAS_HOME_OFFSET xy_float_t okay_homing_xy = safe_homing_xy; okay_homing_xy -= home_offset; #else constexpr xy_float_t okay_homing_xy = safe_homing_xy; #endif destination.set(okay_homing_xy, current_position.z); TERN_(HOMING_Z_WITH_PROBE, destination -= probe.offset_xy); if (position_is_reachable(destination)) { if (DEBUGGING(LEVELING)) DEBUG_POS("home_z_safely", destination); // Free the active extruder for movement TERN_(DUAL_X_CARRIAGE, idex_set_parked(false)); TERN_(SENSORLESS_HOMING, safe_delay(500)); // Short delay needed to settle do_blocking_move_to_xy(destination); homeaxis(Z_AXIS); } else { LCD_MESSAGE(MSG_ZPROBE_OUT); SERIAL_ECHO_MSG(STR_ZPROBE_OUT_SER); } } #endif // Z_SAFE_HOMING #if ENABLED(IMPROVE_HOMING_RELIABILITY) motion_state_t begin_slow_homing() { motion_state_t motion_state{0}; motion_state.acceleration.set(planner.settings.max_acceleration_mm_per_s2[X_AXIS], planner.settings.max_acceleration_mm_per_s2[Y_AXIS] OPTARG(DELTA, planner.settings.max_acceleration_mm_per_s2[Z_AXIS]) ); planner.settings.max_acceleration_mm_per_s2[X_AXIS] = 100; planner.settings.max_acceleration_mm_per_s2[Y_AXIS] = 100; TERN_(DELTA, planner.settings.max_acceleration_mm_per_s2[Z_AXIS] = 100); #if HAS_CLASSIC_JERK motion_state.jerk_state = planner.max_jerk; planner.max_jerk.set(0, 0 OPTARG(DELTA, 0)); #endif planner.refresh_acceleration_rates(); return motion_state; } void end_slow_homing(const motion_state_t &motion_state) { planner.settings.max_acceleration_mm_per_s2[X_AXIS] = motion_state.acceleration.x; planner.settings.max_acceleration_mm_per_s2[Y_AXIS] = motion_state.acceleration.y; TERN_(DELTA, planner.settings.max_acceleration_mm_per_s2[Z_AXIS] = motion_state.acceleration.z); TERN_(HAS_CLASSIC_JERK, planner.max_jerk = motion_state.jerk_state); planner.refresh_acceleration_rates(); } #endif // IMPROVE_HOMING_RELIABILITY /** * G28: Home all axes according to settings * * Parameters * * None Home to all axes with no parameters. * With QUICK_HOME enabled XY will home together, then Z. * * L Force leveling state ON (if possible) or OFF after homing (Requires RESTORE_LEVELING_AFTER_G28 or ENABLE_LEVELING_AFTER_G28) * O Home only if the position is not known and trusted * R Raise by n mm/inches before homing * * Cartesian/SCARA parameters * * X Home to the X endstop * Y Home to the Y endstop * Z Home to the Z endstop */ void GcodeSuite::G28() { DEBUG_SECTION(log_G28, "G28", DEBUGGING(LEVELING)); if (DEBUGGING(LEVELING)) log_machine_info(); TERN_(LASER_MOVE_G28_OFF, cutter.set_inline_enabled(false)); // turn off laser #if ENABLED(DUAL_X_CARRIAGE) bool IDEX_saved_duplication_state = extruder_duplication_enabled; DualXMode IDEX_saved_mode = dual_x_carriage_mode; #endif #if ENABLED(MARLIN_DEV_MODE) if (parser.seen_test('S')) { LOOP_NUM_AXES(a) set_axis_is_at_home((AxisEnum)a); sync_plan_position(); SERIAL_ECHOLNPGM("Simulated Homing"); report_current_position(); return; } #endif // Home (O)nly if position is unknown if (!axes_should_home() && parser.seen_test('O')) { if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("> homing not needed, skip"); return; } #if ENABLED(FULL_REPORT_TO_HOST_FEATURE) const M_StateEnum old_grblstate = M_State_grbl; set_and_report_grblstate(M_HOMING); #endif TERN_(HAS_DWIN_E3V2_BASIC, DWIN_HomingStart()); TERN_(EXTENSIBLE_UI, ExtUI::onHomingStart()); planner.synchronize(); // Wait for planner moves to finish! SET_SOFT_ENDSTOP_LOOSE(false); // Reset a leftover 'loose' motion state // Disable the leveling matrix before homing #if CAN_SET_LEVELING_AFTER_G28 const bool leveling_restore_state = parser.boolval('L', TERN1(RESTORE_LEVELING_AFTER_G28, planner.leveling_active)); #endif // Cancel any prior G29 session TERN_(PROBE_MANUALLY, g29_in_progress = false); // Disable leveling before homing TERN_(HAS_LEVELING, set_bed_leveling_enabled(false)); // Reset to the XY plane TERN_(CNC_WORKSPACE_PLANES, workspace_plane = PLANE_XY); // Count this command as movement / activity reset_stepper_timeout(); #define HAS_CURRENT_HOME(N) (defined(N##_CURRENT_HOME) && N##_CURRENT_HOME != N##_CURRENT) #if HAS_CURRENT_HOME(X) || HAS_CURRENT_HOME(X2) || HAS_CURRENT_HOME(Y) || HAS_CURRENT_HOME(Y2) || (ENABLED(DELTA) && HAS_CURRENT_HOME(Z)) || HAS_CURRENT_HOME(I) || HAS_CURRENT_HOME(J) || HAS_CURRENT_HOME(K) || HAS_CURRENT_HOME(U) || HAS_CURRENT_HOME(V) || HAS_CURRENT_HOME(W) #define HAS_HOMING_CURRENT 1 #endif #if HAS_HOMING_CURRENT auto debug_current = [](FSTR_P const s, const int16_t a, const int16_t b) { DEBUG_ECHOF(s); DEBUG_ECHOLNPGM(" current: ", a, " -> ", b); }; #if HAS_CURRENT_HOME(X) const int16_t tmc_save_current_X = stepperX.getMilliamps(); stepperX.rms_current(X_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_X), tmc_save_current_X, X_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(X2) const int16_t tmc_save_current_X2 = stepperX2.getMilliamps(); stepperX2.rms_current(X2_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_X2), tmc_save_current_X2, X2_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(Y) const int16_t tmc_save_current_Y = stepperY.getMilliamps(); stepperY.rms_current(Y_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_Y), tmc_save_current_Y, Y_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(Y2) const int16_t tmc_save_current_Y2 = stepperY2.getMilliamps(); stepperY2.rms_current(Y2_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_Y2), tmc_save_current_Y2, Y2_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(Z) && ENABLED(DELTA) const int16_t tmc_save_current_Z = stepperZ.getMilliamps(); stepperZ.rms_current(Z_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_Z), tmc_save_current_Z, Z_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(I) const int16_t tmc_save_current_I = stepperI.getMilliamps(); stepperI.rms_current(I_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_I), tmc_save_current_I, I_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(J) const int16_t tmc_save_current_J = stepperJ.getMilliamps(); stepperJ.rms_current(J_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_J), tmc_save_current_J, J_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(K) const int16_t tmc_save_current_K = stepperK.getMilliamps(); stepperK.rms_current(K_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_K), tmc_save_current_K, K_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(U) const int16_t tmc_save_current_U = stepperU.getMilliamps(); stepperU.rms_current(U_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_U), tmc_save_current_U, U_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(V) const int16_t tmc_save_current_V = stepperV.getMilliamps(); stepperV.rms_current(V_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_V), tmc_save_current_V, V_CURRENT_HOME); #endif #if HAS_CURRENT_HOME(W) const int16_t tmc_save_current_W = stepperW.getMilliamps(); stepperW.rms_current(W_CURRENT_HOME); if (DEBUGGING(LEVELING)) debug_current(F(STR_W), tmc_save_current_W, W_CURRENT_HOME); #endif #if SENSORLESS_STALLGUARD_DELAY safe_delay(SENSORLESS_STALLGUARD_DELAY); // Short delay needed to settle #endif #endif #if ENABLED(IMPROVE_HOMING_RELIABILITY) motion_state_t saved_motion_state = begin_slow_homing(); #endif // Always home with tool 0 active #if HAS_MULTI_HOTEND #if DISABLED(DELTA) || ENABLED(DELTA_HOME_TO_SAFE_ZONE) const uint8_t old_tool_index = active_extruder; #endif // PARKING_EXTRUDER homing requires different handling of movement / solenoid activation, depending on the side of homing #if ENABLED(PARKING_EXTRUDER) const bool pe_final_change_must_unpark = parking_extruder_unpark_after_homing(old_tool_index, X_HOME_DIR + 1 == old_tool_index * 2); #endif tool_change(0, true); #endif TERN_(HAS_DUPLICATION_MODE, set_duplication_enabled(false)); remember_feedrate_scaling_off(); endstops.enable(true); // Enable endstops for next homing move #if ENABLED(DELTA) constexpr bool doZ = true; // for NANODLP_Z_SYNC if your DLP is on a DELTA home_delta(); TERN_(IMPROVE_HOMING_RELIABILITY, end_slow_homing(saved_motion_state)); #elif ENABLED(AXEL_TPARA) constexpr bool doZ = true; // for NANODLP_Z_SYNC if your DLP is on a TPARA home_TPARA(); #else #define _UNSAFE(A) (homeZ && TERN0(Z_SAFE_HOMING, axes_should_home(_BV(A##_AXIS)))) const bool homeZ = TERN0(HAS_Z_AXIS, parser.seen_test('Z')), NUM_AXIS_LIST( // Other axes should be homed before Z safe-homing needX = _UNSAFE(X), needY = _UNSAFE(Y), needZ = false, // UNUSED needI = _UNSAFE(I), needJ = _UNSAFE(J), needK = _UNSAFE(K), needU = _UNSAFE(U), needV = _UNSAFE(V), needW = _UNSAFE(W) ), NUM_AXIS_LIST( // Home each axis if needed or flagged homeX = needX || parser.seen_test('X'), homeY = needY || parser.seen_test('Y'), homeZZ = homeZ, homeI = needI || parser.seen_test(AXIS4_NAME), homeJ = needJ || parser.seen_test(AXIS5_NAME), homeK = needK || parser.seen_test(AXIS6_NAME), homeU = needU || parser.seen_test(AXIS7_NAME), homeV = needV || parser.seen_test(AXIS8_NAME), homeW = needW || parser.seen_test(AXIS9_NAME) ), home_all = NUM_AXIS_GANG( // Home-all if all or none are flagged homeX == homeX, && homeY == homeX, && homeZ == homeX, && homeI == homeX, && homeJ == homeX, && homeK == homeX, && homeU == homeX, && homeV == homeX, && homeW == homeX ), NUM_AXIS_LIST( doX = home_all || homeX, doY = home_all || homeY, doZ = home_all || homeZ, doI = home_all || homeI, doJ = home_all || homeJ, doK = home_all || homeK, doU = home_all || homeU, doV = home_all || homeV, doW = home_all || homeW ); #if HAS_Z_AXIS UNUSED(needZ); UNUSED(homeZZ); #else constexpr bool doZ = false; #endif TERN_(HOME_Z_FIRST, if (doZ) homeaxis(Z_AXIS)); const bool seenR = parser.seenval('R'); const float z_homing_height = seenR ? parser.value_linear_units() : Z_HOMING_HEIGHT; if (z_homing_height && (seenR || NUM_AXIS_GANG(doX, || doY, || TERN0(Z_SAFE_HOMING, doZ), || doI, || doJ, || doK, || doU, || doV, || doW))) { // Raise Z before homing any other axes and z is not already high enough (never lower z) if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Raise Z (before homing) by ", z_homing_height); do_z_clearance(z_homing_height); TERN_(BLTOUCH, bltouch.init()); } // Diagonal move first if both are homing TERN_(QUICK_HOME, if (doX && doY) quick_home_xy()); // Home Y (before X) if (ENABLED(HOME_Y_BEFORE_X) && (doY || TERN0(CODEPENDENT_XY_HOMING, doX))) homeaxis(Y_AXIS); // Home X if (doX || (doY && ENABLED(CODEPENDENT_XY_HOMING) && DISABLED(HOME_Y_BEFORE_X))) { #if ENABLED(DUAL_X_CARRIAGE) // Always home the 2nd (right) extruder first active_extruder = 1; homeaxis(X_AXIS); // Remember this extruder's position for later tool change inactive_extruder_x = current_position.x; // Home the 1st (left) extruder active_extruder = 0; homeaxis(X_AXIS); // Consider the active extruder to be in its "parked" position idex_set_parked(); #else homeaxis(X_AXIS); #endif } #if BOTH(FOAMCUTTER_XYUV, HAS_I_AXIS) // Home I (after X) if (doI) homeaxis(I_AXIS); #endif // Home Y (after X) if (DISABLED(HOME_Y_BEFORE_X) && doY) homeaxis(Y_AXIS); #if BOTH(FOAMCUTTER_XYUV, HAS_J_AXIS) // Home J (after Y) if (doJ) homeaxis(J_AXIS); #endif TERN_(IMPROVE_HOMING_RELIABILITY, end_slow_homing(saved_motion_state)); #if ENABLED(FOAMCUTTER_XYUV) // skip homing of unused Z axis for foamcutters if (doZ) set_axis_is_at_home(Z_AXIS); #else // Home Z last if homing towards the bed #if HAS_Z_AXIS && DISABLED(HOME_Z_FIRST) if (doZ) { #if EITHER(Z_MULTI_ENDSTOPS, Z_STEPPER_AUTO_ALIGN) stepper.set_all_z_lock(false); stepper.set_separate_multi_axis(false); #endif #if ENABLED(Z_SAFE_HOMING) if (TERN1(POWER_LOSS_RECOVERY, !parser.seen_test('H'))) home_z_safely(); else homeaxis(Z_AXIS); #else homeaxis(Z_AXIS); #endif probe.move_z_after_homing(); } #endif SECONDARY_AXIS_CODE( if (doI) homeaxis(I_AXIS), if (doJ) homeaxis(J_AXIS), if (doK) homeaxis(K_AXIS), if (doU) homeaxis(U_AXIS), if (doV) homeaxis(V_AXIS), if (doW) homeaxis(W_AXIS) ); #endif sync_plan_position(); #endif /** * Preserve DXC mode across a G28 for IDEX printers in DXC_DUPLICATION_MODE. * This is important because it lets a user use the LCD Panel to set an IDEX Duplication mode, and * then print a standard GCode file that contains a single print that does a G28 and has no other * IDEX specific commands in it. */ #if ENABLED(DUAL_X_CARRIAGE) if (idex_is_duplicating()) { TERN_(IMPROVE_HOMING_RELIABILITY, saved_motion_state = begin_slow_homing()); // Always home the 2nd (right) extruder first active_extruder = 1; homeaxis(X_AXIS); // Remember this extruder's position for later tool change inactive_extruder_x = current_position.x; // Home the 1st (left) extruder active_extruder = 0; homeaxis(X_AXIS); // Consider the active extruder to be parked idex_set_parked(); dual_x_carriage_mode = IDEX_saved_mode; set_duplication_enabled(IDEX_saved_duplication_state); TERN_(IMPROVE_HOMING_RELIABILITY, end_slow_homing(saved_motion_state)); } #endif // DUAL_X_CARRIAGE endstops.not_homing(); // Clear endstop state for polled stallGuard endstops TERN_(SPI_ENDSTOPS, endstops.clear_endstop_state()); // Move to a height where we can use the full xy-area TERN_(DELTA_HOME_TO_SAFE_ZONE, do_blocking_move_to_z(delta_clip_start_height)); TERN_(CAN_SET_LEVELING_AFTER_G28, if (leveling_restore_state) set_bed_leveling_enabled()); restore_feedrate_and_scaling(); // Restore the active tool after homing #if HAS_MULTI_HOTEND && (DISABLED(DELTA) || ENABLED(DELTA_HOME_TO_SAFE_ZONE)) tool_change(old_tool_index, TERN(PARKING_EXTRUDER, !pe_final_change_must_unpark, DISABLED(DUAL_X_CARRIAGE))); // Do move if one of these #endif #if HAS_HOMING_CURRENT if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Restore driver current..."); #if HAS_CURRENT_HOME(X) stepperX.rms_current(tmc_save_current_X); #endif #if HAS_CURRENT_HOME(X2) stepperX2.rms_current(tmc_save_current_X2); #endif #if HAS_CURRENT_HOME(Y) stepperY.rms_current(tmc_save_current_Y); #endif #if HAS_CURRENT_HOME(Y2) stepperY2.rms_current(tmc_save_current_Y2); #endif #if HAS_CURRENT_HOME(Z) && ENABLED(DELTA) stepperZ.rms_current(tmc_save_current_Z); #endif #if HAS_CURRENT_HOME(I) stepperI.rms_current(tmc_save_current_I); #endif #if HAS_CURRENT_HOME(J) stepperJ.rms_current(tmc_save_current_J); #endif #if HAS_CURRENT_HOME(K) stepperK.rms_current(tmc_save_current_K); #endif #if HAS_CURRENT_HOME(U) stepperU.rms_current(tmc_save_current_U); #endif #if HAS_CURRENT_HOME(V) stepperV.rms_current(tmc_save_current_V); #endif #if HAS_CURRENT_HOME(W) stepperW.rms_current(tmc_save_current_W); #endif #if SENSORLESS_STALLGUARD_DELAY safe_delay(SENSORLESS_STALLGUARD_DELAY); // Short delay needed to settle #endif #endif // HAS_HOMING_CURRENT ui.refresh(); TERN_(HAS_DWIN_E3V2_BASIC, DWIN_HomingDone()); TERN_(EXTENSIBLE_UI, ExtUI::onHomingDone()); report_current_position(); if (ENABLED(NANODLP_Z_SYNC) && (doZ || ENABLED(NANODLP_ALL_AXIS))) SERIAL_ECHOLNPGM(STR_Z_MOVE_COMP); TERN_(FULL_REPORT_TO_HOST_FEATURE, set_and_report_grblstate(old_grblstate)); #if HAS_L64XX // Set L6470 absolute position registers to counts // constexpr *might* move this to PROGMEM. // If not, this will need a PROGMEM directive and an accessor. #define _EN_ITEM(N) , E_AXIS static constexpr AxisEnum L64XX_axis_xref[MAX_L64XX] = { NUM_AXIS_LIST(X_AXIS, Y_AXIS, Z_AXIS, I_AXIS, J_AXIS, K_AXIS, U_AXIS, V_AXIS, W_AXIS), X_AXIS, Y_AXIS, Z_AXIS, Z_AXIS, Z_AXIS REPEAT(E_STEPPERS, _EN_ITEM) }; #undef _EN_ITEM for (uint8_t j = 1; j <= L64XX::chain[0]; j++) { const uint8_t cv = L64XX::chain[j]; L64xxManager.set_param((L64XX_axis_t)cv, L6470_ABS_POS, stepper.position(L64XX_axis_xref[cv])); } #endif }