#ifndef __ARCH_X86_ATOMIC__ #define __ARCH_X86_ATOMIC__ #include #include #ifdef CONFIG_SMP #define LOCK "lock ; " #else #define LOCK "" #endif /* * NB. I've pushed the volatile qualifier into the operations. This allows * fast accessors such as _atomic_read() and _atomic_set() which don't give * the compiler a fit. */ typedef struct { int counter; } atomic_t; #define ATOMIC_INIT(i) { (i) } /** * atomic_read - read atomic variable * @v: pointer of type atomic_t * * Atomically reads the value of @v. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ #define _atomic_read(v) ((v).counter) #define atomic_read(v) (*(volatile int *)&((v)->counter)) /** * atomic_set - set atomic variable * @v: pointer of type atomic_t * @i: required value * * Atomically sets the value of @v to @i. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ #define _atomic_set(v,i) (((v).counter) = (i)) #define atomic_set(v,i) (*(volatile int *)&((v)->counter) = (i)) /** * atomic_add - add integer to atomic variable * @i: integer value to add * @v: pointer of type atomic_t * * Atomically adds @i to @v. Note that the guaranteed useful range * of an atomic_t is only 24 bits. */ static __inline__ void atomic_add(int i, atomic_t *v) { __asm__ __volatile__( LOCK "addl %1,%0" :"=m" (*(volatile int *)&v->counter) :"ir" (i), "m" (*(volatile int *)&v->counter)); } /** * atomic_sub - subtract the atomic variable * @i: integer value to subtract * @v: pointer of type atomic_t * * Atomically subtracts @i from @v. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ void atomic_sub(int i, atomic_t *v) { __asm__ __volatile__( LOCK "subl %1,%0" :"=m" (*(volatile int *)&v->counter) :"ir" (i), "m" (*(volatile int *)&v->counter)); } /** * atomic_sub_and_test - subtract value from variable and test result * @i: integer value to subtract * @v: pointer of type atomic_t * * Atomically subtracts @i from @v and returns * true if the result is zero, or false for all * other cases. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ int atomic_sub_and_test(int i, atomic_t *v) { unsigned char c; __asm__ __volatile__( LOCK "subl %2,%0; sete %1" :"=m" (*(volatile int *)&v->counter), "=qm" (c) :"ir" (i), "m" (*(volatile int *)&v->counter) : "memory"); return c; } /** * atomic_inc - increment atomic variable * @v: pointer of type atomic_t * * Atomically increments @v by 1. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ void atomic_inc(atomic_t *v) { __asm__ __volatile__( LOCK "incl %0" :"=m" (*(volatile int *)&v->counter) :"m" (*(volatile int *)&v->counter)); } /** * atomic_dec - decrement atomic variable * @v: pointer of type atomic_t * * Atomically decrements @v by 1. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ void atomic_dec(atomic_t *v) { __asm__ __volatile__( LOCK "decl %0" :"=m" (*(volatile int *)&v->counter) :"m" (*(volatile int *)&v->counter)); } /** * atomic_dec_and_test - decrement and test * @v: pointer of type atomic_t * * Atomically decrements @v by 1 and * returns true if the result is 0, or false for all other * cases. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ int atomic_dec_and_test(atomic_t *v) { unsigned char c; __asm__ __volatile__( LOCK "decl %0; sete %1" :"=m" (*(volatile int *)&v->counter), "=qm" (c) :"m" (*(volatile int *)&v->counter) : "memory"); return c != 0; } /** * atomic_inc_and_test - increment and test * @v: pointer of type atomic_t * * Atomically increments @v by 1 * and returns true if the result is zero, or false for all * other cases. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */ static __inline__ int atomic_inc_and_test(atomic_t *v) { unsigned char c; __asm__ __volatile__( LOCK "incl %0; sete %1" :"=m" (*(volatile int *)&v->counter), "=qm" (c) :"m" (*(volatile int *)&v->counter) : "memory"); return c != 0; } /** * atomic_add_negative - add and test if negative * @v: pointer of type atomic_t * 
/* Copyright 2016 Jack Humbert
 *
 * 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 2 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/>.
 */

#ifndef PROCESS_CHORDING_H
#define PROCESS_CHORDING_H

#include "quantum.h"

// Chording stuff
#define CHORDING_MAX 4
bool chording = false;

uint8_t chord_keys[CHORDING_MAX] = {0};
uint8_t chord_key_count = 0;
uint8_t chord_key_down = 0;

bool process_chording(uint16_t keycode, keyrecord_t *record);

#endif
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