| /* |
| * Copyright (c) 2010,2015 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| |
| #ifndef ADF_OS_ATOMIC_PVT_H |
| #define ADF_OS_ATOMIC_PVT_H |
| |
| #include <adf_os_types.h> /* a_status_t */ |
| |
| #include <asm/atomic.h> |
| |
| typedef atomic_t __adf_os_atomic_t; |
| |
| static inline a_status_t |
| __adf_os_atomic_init(__adf_os_atomic_t *v) |
| { |
| atomic_set(v, 0); |
| |
| return A_STATUS_OK; |
| } |
| |
| static inline int32_t |
| __adf_os_atomic_read(__adf_os_atomic_t *v) |
| { |
| return (atomic_read(v)); |
| } |
| static inline void |
| __adf_os_atomic_inc(__adf_os_atomic_t *v) |
| { |
| atomic_inc(v); |
| } |
| |
| static inline void |
| __adf_os_atomic_dec(__adf_os_atomic_t *v) |
| { |
| atomic_dec(v); |
| } |
| |
| static inline void |
| __adf_os_atomic_add(int i, __adf_os_atomic_t *v) |
| { |
| atomic_add(i, v); |
| } |
| |
| /** |
| * __adf_os_atomic_sub() - Subtract a value from an atomic variable |
| * @v: a pointer to an opaque atomic variable |
| * @i: the amount by which to decrease the atomic counter |
| * |
| * Return: none |
| */ |
| static inline void |
| __adf_os_atomic_sub(int i, __adf_os_atomic_t *v) |
| { |
| atomic_sub(i, v); |
| } |
| |
| static inline int32_t |
| __adf_os_atomic_dec_and_test(__adf_os_atomic_t *v) |
| { |
| return(atomic_dec_and_test(v)); |
| } |
| |
| /** |
| * __adf_os_atomic_inc_return() - Increment and return an atomic variable |
| * @v a pointer to an opaque atomic variable |
| * |
| * good for eliminating race conditions between multiple increments and reads |
| * |
| * @return |
| * the new value stored int the atomic type. |
| */ |
| static inline int32_t |
| __adf_os_atomic_inc_return(__adf_os_atomic_t *v) |
| { |
| return atomic_inc_return(v); |
| } |
| |
| static inline void |
| __adf_os_atomic_set(__adf_os_atomic_t *v, int i) |
| { |
| atomic_set(v, i); |
| } |
| #endif |