drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_osk_timers.c

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2008-2013 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10
  11 /**
  12  * @file mali_osk_timers.c
  13  * Implementation of the OS abstraction layer for the kernel device driver
  14  */
  15
  16 #include <linux/timer.h>
  17 #include <linux/slab.h>
  18 #include "mali_osk.h"
  19 #include "mali_kernel_common.h"
  20
  21 struct _mali_osk_timer_t_struct {
  22         struct timer_list timer;
  23 };
  24
  25 typedef void (*timer_timeout_function_t)(unsigned long);
  26
  27 _mali_osk_timer_t *_mali_osk_timer_init(void)
  28 {
  29         _mali_osk_timer_t *t = (_mali_osk_timer_t*)kmalloc(sizeof(_mali_osk_timer_t), GFP_KERNEL);
  30         if (NULL != t) init_timer(&t->timer);
  31         return t;
  32 }
  33
  34 void _mali_osk_timer_add( _mali_osk_timer_t *tim, u32 ticks_to_expire )
  35 {
  36         MALI_DEBUG_ASSERT_POINTER(tim);
  37         tim->timer.expires = jiffies + ticks_to_expire;
  38         add_timer(&(tim->timer));
  39 }
  40
  41 void _mali_osk_timer_mod( _mali_osk_timer_t *tim, u32 ticks_to_expire)
  42 {
  43         MALI_DEBUG_ASSERT_POINTER(tim);
  44         mod_timer(&(tim->timer), jiffies + ticks_to_expire);
  45 }
  46
  47 void _mali_osk_timer_del( _mali_osk_timer_t *tim )
  48 {
  49         MALI_DEBUG_ASSERT_POINTER(tim);
  50         del_timer_sync(&(tim->timer));
  51 }
  52
  53 void _mali_osk_timer_del_async( _mali_osk_timer_t *tim )
  54 {
  55         MALI_DEBUG_ASSERT_POINTER(tim);
  56         del_timer(&(tim->timer));
  57 }
  58
  59 mali_bool _mali_osk_timer_pending( _mali_osk_timer_t *tim )
  60 {
  61         MALI_DEBUG_ASSERT_POINTER(tim);
  62         return 1 == timer_pending(&(tim->timer));
  63 }
  64
  65 void _mali_osk_timer_setcallback( _mali_osk_timer_t *tim, _mali_osk_timer_callback_t callback, void *data )
  66 {
  67         MALI_DEBUG_ASSERT_POINTER(tim);
  68         tim->timer.data = (unsigned long)data;
  69         tim->timer.function = (timer_timeout_function_t)callback;
  70 }
  71
  72 void _mali_osk_timer_term( _mali_osk_timer_t *tim )
  73 {
  74         MALI_DEBUG_ASSERT_POINTER(tim);
  75         kfree(tim);
  76 }