1 /*
2 * Copyright (C) 2010-2014, 2016-2017 ARM Limited. All rights reserved.
3 *
4 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
5 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
6 *
7 * A copy of the licence is included with the program, and can also be obtained from Free Software
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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
_mali_osk_timer_init(_mali_osk_timer_callback_t callback)27 _mali_osk_timer_t *_mali_osk_timer_init(_mali_osk_timer_callback_t callback)
28 {
29 _mali_osk_timer_t *t = (_mali_osk_timer_t *)kmalloc(sizeof(_mali_osk_timer_t), GFP_KERNEL);
30 if (NULL != t)
31 timer_setup(&t->timer,
32 (void (*)(struct timer_list *))callback, 0);
33 return t;
34 }
35
_mali_osk_timer_add(_mali_osk_timer_t * tim,unsigned long ticks_to_expire)36 void _mali_osk_timer_add(_mali_osk_timer_t *tim, unsigned long ticks_to_expire)
37 {
38 MALI_DEBUG_ASSERT_POINTER(tim);
39 tim->timer.expires = jiffies + ticks_to_expire;
40 add_timer(&(tim->timer));
41 }
42
_mali_osk_timer_mod(_mali_osk_timer_t * tim,unsigned long ticks_to_expire)43 void _mali_osk_timer_mod(_mali_osk_timer_t *tim, unsigned long ticks_to_expire)
44 {
45 MALI_DEBUG_ASSERT_POINTER(tim);
46 mod_timer(&(tim->timer), jiffies + ticks_to_expire);
47 }
48
_mali_osk_timer_del(_mali_osk_timer_t * tim)49 void _mali_osk_timer_del(_mali_osk_timer_t *tim)
50 {
51 MALI_DEBUG_ASSERT_POINTER(tim);
52 del_timer_sync(&(tim->timer));
53 }
54
_mali_osk_timer_del_async(_mali_osk_timer_t * tim)55 void _mali_osk_timer_del_async(_mali_osk_timer_t *tim)
56 {
57 MALI_DEBUG_ASSERT_POINTER(tim);
58 del_timer(&(tim->timer));
59 }
60
_mali_osk_timer_pending(_mali_osk_timer_t * tim)61 mali_bool _mali_osk_timer_pending(_mali_osk_timer_t *tim)
62 {
63 MALI_DEBUG_ASSERT_POINTER(tim);
64 return 1 == timer_pending(&(tim->timer));
65 }
66
_mali_osk_timer_setcallback(_mali_osk_timer_t * tim,_mali_osk_timer_callback_t callback,void * data)67 void _mali_osk_timer_setcallback(_mali_osk_timer_t *tim, _mali_osk_timer_callback_t callback, void *data)
68 {
69 MALI_DEBUG_ASSERT_POINTER(tim);
70 }
71
_mali_osk_timer_term(_mali_osk_timer_t * tim)72 void _mali_osk_timer_term(_mali_osk_timer_t *tim)
73 {
74 MALI_DEBUG_ASSERT_POINTER(tim);
75 kfree(tim);
76 }
77