| /* |
| * Copyright (c) 2014-2015 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 _I_CDF_SOFTIRQ_TIMER_H |
| #define _I_CDF_SOFTIRQ_TIMER_H |
| |
| #include <linux/version.h> |
| #include <linux/delay.h> |
| #include <linux/timer.h> |
| #include <linux/jiffies.h> |
| #include <cdf_types.h> |
| |
| /* timer data type */ |
| typedef struct timer_list __cdf_softirq_timer_t; |
| |
| /* ugly - but every other OS takes, sanely, a void */ |
| |
| typedef void (*cdf_dummy_timer_func_t)(unsigned long arg); |
| |
| /** |
| * __cdf_softirq_timer_init() - initialize a softirq timer |
| * @hdl: OS handle |
| * @timer: Pointer to timer object |
| * @func: Function pointer |
| * @arg: Arguement |
| * @type: deferrable or non deferrable timer type |
| * |
| * Timer type CDF_TIMER_TYPE_SW means its a deferrable sw timer which will |
| * not cause CPU wake upon expiry |
| * Timer type CDF_TIMER_TYPE_WAKE_APPS means its a non-deferrable timer which |
| * will cause CPU wake up on expiry |
| * |
| * Return: none |
| */ |
| static inline CDF_STATUS |
| __cdf_softirq_timer_init(cdf_handle_t hdl, |
| struct timer_list *timer, |
| cdf_softirq_timer_func_t func, void *arg, |
| CDF_TIMER_TYPE type) |
| { |
| if (CDF_TIMER_TYPE_SW == type) |
| init_timer_deferrable(timer); |
| else |
| init_timer(timer); |
| timer->function = (cdf_dummy_timer_func_t) func; |
| timer->data = (unsigned long)arg; |
| |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * __cdf_softirq_timer_start() - start a cdf softirq timer |
| * @timer: Pointer to timer object |
| * @delay: Delay in milli seconds |
| * |
| * Return: none |
| */ |
| static inline CDF_STATUS |
| __cdf_softirq_timer_start(struct timer_list *timer, uint32_t delay) |
| { |
| timer->expires = jiffies + msecs_to_jiffies(delay); |
| add_timer(timer); |
| |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * __cdf_softirq_timer_mod() - modify a timer |
| * @timer: Pointer to timer object |
| * @delay: Delay in milli seconds |
| * |
| * Return: none |
| */ |
| static inline CDF_STATUS |
| __cdf_softirq_timer_mod(struct timer_list *timer, uint32_t delay) |
| { |
| mod_timer(timer, jiffies + msecs_to_jiffies(delay)); |
| |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * __cdf_softirq_timer_cancel() - cancel a timer |
| * @timer: Pointer to timer object |
| * |
| * Return: true if timer was cancelled and deactived, |
| * false if timer was cancelled but already got fired. |
| */ |
| static inline bool __cdf_softirq_timer_cancel(struct timer_list *timer) |
| { |
| if (likely(del_timer(timer))) |
| return 1; |
| else |
| return 0; |
| } |
| |
| /** |
| * __cdf_softirq_timer_free() - free a cdf timer |
| * @timer: Pointer to timer object |
| * |
| * Return: true if timer was cancelled and deactived, |
| * false if timer was cancelled but already got fired. |
| */ |
| static inline void __cdf_softirq_timer_free(struct timer_list *timer) |
| { |
| del_timer_sync(timer); |
| } |
| |
| /** |
| * __cdf_sostirq_timer_sync_cancel() - Synchronously canel a timer |
| * @timer: Pointer to timer object |
| * |
| * Synchronization Rules: |
| * 1. caller must make sure timer function will not use |
| * cdf_softirq_set_timer to add iteself again. |
| * 2. caller must not hold any lock that timer function |
| * is likely to hold as well. |
| * 3. It can't be called from interrupt context. |
| * |
| * Return: true if timer was cancelled and deactived, |
| * false if timer was cancelled but already got fired. |
| */ |
| static inline bool __cdf_sostirq_timer_sync_cancel(struct timer_list *timer) |
| { |
| return del_timer_sync(timer); |
| } |
| |
| #endif /*_ADF_OS_TIMER_PVT_H*/ |