| /* |
| * Copyright (c) 2014-2019 The Linux Foundation. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| /** |
| * DOC: i_qdf_timer |
| * This file provides OS dependent timer API's. |
| */ |
| |
| #ifndef _I_QDF_TIMER_H |
| #define _I_QDF_TIMER_H |
| |
| #include <linux/version.h> |
| #include <linux/delay.h> |
| #include <linux/timer.h> |
| #include <linux/jiffies.h> |
| #include "qdf_mc_timer.h" |
| #include <qdf_types.h> |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0) |
| #include <linux/sched/task_stack.h> |
| #endif |
| |
| typedef void (*qdf_timer_func_t)(void *); |
| |
| |
| struct __qdf_timer_t { |
| struct timer_list os_timer; |
| qdf_timer_func_t callback; |
| void *context; |
| }; |
| |
| #ifdef QDF_TIMER_MULTIPLIER_FRAC |
| #define __qdf_scaled_msecs_to_jiffies(msec) \ |
| (QDF_TIMER_MULTIPLIER_FRAC * msecs_to_jiffies(msec)) |
| #else |
| #define __qdf_scaled_msecs_to_jiffies(msec) \ |
| (qdf_timer_get_multiplier() * msecs_to_jiffies(msec)) |
| #endif |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0) |
| static inline void __os_timer_shim(struct timer_list *os_timer) |
| { |
| struct __qdf_timer_t *timer = from_timer(timer, os_timer, os_timer); |
| |
| timer->callback(timer->context); |
| } |
| |
| static inline QDF_STATUS __qdf_timer_init(struct __qdf_timer_t *timer, |
| qdf_timer_func_t func, void *arg, |
| QDF_TIMER_TYPE type) |
| { |
| struct timer_list *os_timer = &timer->os_timer; |
| uint32_t flags = 0; |
| |
| timer->callback = func; |
| timer->context = arg; |
| |
| if (type == QDF_TIMER_TYPE_SW) |
| flags |= TIMER_DEFERRABLE; |
| |
| if (object_is_on_stack(os_timer)) |
| timer_setup_on_stack(os_timer, __os_timer_shim, flags); |
| else |
| timer_setup(os_timer, __os_timer_shim, flags); |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| |
| #else |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0) |
| #define setup_deferrable_timer(timer, fn, data) \ |
| __setup_timer((timer), (fn), (data), TIMER_DEFERRABLE) |
| #endif |
| |
| static inline void __os_timer_shim(unsigned long addr) |
| { |
| struct __qdf_timer_t *timer = (void *)addr; |
| |
| timer->callback(timer->context); |
| } |
| |
| static inline QDF_STATUS __qdf_timer_init(struct __qdf_timer_t *timer, |
| qdf_timer_func_t func, void *arg, |
| QDF_TIMER_TYPE type) |
| { |
| struct timer_list *os_timer = &timer->os_timer; |
| bool is_on_stack = object_is_on_stack(os_timer); |
| unsigned long addr = (unsigned long)timer; |
| |
| timer->callback = func; |
| timer->context = arg; |
| |
| if (type == QDF_TIMER_TYPE_SW) { |
| if (is_on_stack) |
| setup_deferrable_timer_on_stack(os_timer, |
| __os_timer_shim, |
| addr); |
| else |
| setup_deferrable_timer(os_timer, __os_timer_shim, addr); |
| } else { |
| if (is_on_stack) |
| setup_timer_on_stack(os_timer, __os_timer_shim, addr); |
| else |
| setup_timer(os_timer, __os_timer_shim, addr); |
| } |
| |
| return QDF_STATUS_SUCCESS; |
| } |
| #endif /* KERNEL_VERSION(4, 15, 0)*/ |
| |
| static inline void __qdf_timer_start(struct __qdf_timer_t *timer, uint32_t msec) |
| { |
| struct timer_list *os_timer = &timer->os_timer; |
| |
| os_timer->expires = jiffies + __qdf_scaled_msecs_to_jiffies(msec); |
| add_timer(os_timer); |
| } |
| |
| static inline void __qdf_timer_mod(struct __qdf_timer_t *timer, uint32_t msec) |
| { |
| mod_timer(&timer->os_timer, |
| jiffies + __qdf_scaled_msecs_to_jiffies(msec)); |
| } |
| |
| static inline bool __qdf_timer_stop(struct __qdf_timer_t *timer) |
| { |
| return !!del_timer(&timer->os_timer); |
| } |
| |
| static inline void __qdf_timer_free(struct __qdf_timer_t *timer) |
| { |
| struct timer_list *os_timer = &timer->os_timer; |
| |
| del_timer_sync(os_timer); |
| |
| if (object_is_on_stack(os_timer)) |
| destroy_timer_on_stack(os_timer); |
| } |
| |
| static inline bool __qdf_timer_sync_cancel(struct __qdf_timer_t *timer) |
| { |
| return del_timer_sync(&timer->os_timer); |
| } |
| |
| #endif /* _I_QDF_TIMER_H */ |