limits.h

/*
  limits.h - code pertaining to limit-switches and performing the homing cycle
  Part of Grbl

  Copyright (c) 2013-2014 Sungeun K. Jeon  
  Copyright (c) 2009-2011 Simen Svale Skogsrud

  Grbl 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.

  Grbl 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 Grbl.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef limits_h
#define limits_h 

typedef struct {
  uint8_t expected;
  uint8_t active;
  volatile uint8_t homenext;
  uint8_t homecount;
} limit_t;

extern limit_t limits;

// Initialize the limits module
void limits_init();
// Configure the limit enable/disable state
void limits_configure();

void limits_enable(uint8_t axes,uint8_t expected);
void limits_disable();

// Perform one portion of the homing cycle based on the input settings.
void limits_go_home(uint8_t cycle_mask);

// Check for soft limit violations
void limits_soft_check(float *target);

#endif