diff options
Diffstat (limited to 'drivers/net/wireless/libertas/thread.h')
-rw-r--r-- | drivers/net/wireless/libertas/thread.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/thread.h b/drivers/net/wireless/libertas/thread.h new file mode 100644 index 000000000000..207b8a6cc33d --- /dev/null +++ b/drivers/net/wireless/libertas/thread.h | |||
@@ -0,0 +1,52 @@ | |||
1 | #ifndef __WLAN_THREAD_H_ | ||
2 | #define __WLAN_THREAD_H_ | ||
3 | |||
4 | #include <linux/kthread.h> | ||
5 | |||
6 | struct wlan_thread { | ||
7 | struct task_struct *task; | ||
8 | wait_queue_head_t waitq; | ||
9 | pid_t pid; | ||
10 | void *priv; | ||
11 | }; | ||
12 | |||
13 | static inline void wlan_activate_thread(struct wlan_thread * thr) | ||
14 | { | ||
15 | /** Record the thread pid */ | ||
16 | thr->pid = current->pid; | ||
17 | |||
18 | /** Initialize the wait queue */ | ||
19 | init_waitqueue_head(&thr->waitq); | ||
20 | } | ||
21 | |||
22 | static inline void wlan_deactivate_thread(struct wlan_thread * thr) | ||
23 | { | ||
24 | ENTER(); | ||
25 | |||
26 | thr->pid = 0; | ||
27 | |||
28 | LEAVE(); | ||
29 | } | ||
30 | |||
31 | static inline void wlan_create_thread(int (*wlanfunc) (void *), | ||
32 | struct wlan_thread * thr, char *name) | ||
33 | { | ||
34 | thr->task = kthread_run(wlanfunc, thr, "%s", name); | ||
35 | } | ||
36 | |||
37 | static inline int wlan_terminate_thread(struct wlan_thread * thr) | ||
38 | { | ||
39 | ENTER(); | ||
40 | |||
41 | /* Check if the thread is active or not */ | ||
42 | if (!thr->pid) { | ||
43 | printk(KERN_ERR "Thread does not exist\n"); | ||
44 | return -1; | ||
45 | } | ||
46 | kthread_stop(thr->task); | ||
47 | |||
48 | LEAVE(); | ||
49 | return 0; | ||
50 | } | ||
51 | |||
52 | #endif | ||