URL https://opencores.org/ocsvn/pcie_ds_dma/pcie_ds_dma/trunk

Subversion Repositories pcie_ds_dma

[/] [pcie_ds_dma/] [trunk/] [soft/] [linux/] [driver/] [pexdrv/] [event.c] - Blame information for rev 6

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Line No.	Rev	Author	Line
1	2	dsmv	`/***************************************************************************`
2			`* Event.c`
3			`*`
4			`* Mon Apr 24 11:37:38 2006`
5			`* Copyright 2006 User`
6			`* Email`
7			`****************************************************************************/`
8			`////////////////////////////////////////////////////////////////////////////////`
9			`#include <linux/kernel.h>`
10			`#define __NO_VERSION__`
11			`#include <linux/module.h>`
12			`#include <linux/types.h>`
13			`//#include <linux/jiffies.h>`
14			`#include <linux/delay.h>`
15			`#include <linux/pci.h>`
16			`#include <linux/interrupt.h>`
17			`#include <linux/bitops.h>`
18			`#include <linux/wait.h>`
19			`#include <linux/sched.h>`
20			`////////////////////////////////////////////////////////////////////////////////`
21			`#ifndef _EVENT_H_`
22			`#include "event.h"`
23			`#endif`
24			`////////////////////////////////////////////////////////////////////////////////`
25			`//`
26			`KEVENT *CreateKevent ( void )`
27			`{`
28			`return NULL;`
29			`}`
30			`////////////////////////////////////////////////////////////////////////////////`
31			`//`
32			`int InitKevent ( KEVENT * event )`
33			`{`
34			`init_waitqueue_head ( &event->m_wq );`
35			`atomic_set ( &event->m_flag, 0 );`
36			`event->m_async = NULL;`
37
38			`return 0;`
39			`}`
40			`////////////////////////////////////////////////////////////////////////////////`
41			`//`
42			`int ResetEvent ( KEVENT * event )`
43			`{`
44			`//printk("<0>%s() %p\n", __FUNCTION__, event);`
45			`atomic_set ( &event->m_flag, 0 );`
46			`return 0;`
47			`}`
48			`////////////////////////////////////////////////////////////////////////////////`
49			`//`
50			`int SetEvent ( KEVENT * event )`
51			`{`
52			`atomic_set ( &event->m_flag, 1 ); //for kernel space...`
53
54			`wake_up_interruptible( &event->m_wq );`
55
56			`//printk("<0>%s(): %p\n", __FUNCTION__, event);`
57
58			`//if (event->m_async)`
59			`// kill_fasync(&event->m_async, SIGIO, POLL_IN\|POLL_OUT);`
60
61			`return 0;`
62			`}`
63			`////////////////////////////////////////////////////////////////////////////////`
64			`//`
65			`int CheckEventFlag ( KEVENT * event )`
66			`{`
67			`//printk("<0>%s(): %p\n", __FUNCTION__, event);`
68
69			`if ( atomic_read ( &event->m_flag ) )`
70			`{`
71			`//ResetEvent ( event );`
72			`return 1;`
73			`}`
74			`return 0;`
75			`}`
76
77			`////////////////////////////////////////////////////////////////////////////////`
78
79			`#define ms_to_jiffies( ms ) (HZ*ms/1000)`
80			`#define jiffies_to_ms( jf ) (jf*1000/HZ)`
81
82			`////////////////////////////////////////////////////////////////////////////////`
83			`//`
84			`int WaitEvent( KEVENT * event, u32 timeout )`
85			`{`
86			`int status = -1;`
87
88			`//printk("<0>%s()\n", __FUNCTION__);`
89
90			`#ifdef DZYTOOLS_2_4_X`
91			`status = interruptible_sleep_on_timeout( &event->m_wq, ms_to_jiffies(timeout) );`
92			`#else`
93			`status = wait_event_interruptible_timeout( event->m_wq, atomic_read(&event->m_flag), ms_to_jiffies(timeout) );`
94			`#endif`
95
96			`if(!status) {`
97			`printk("<0>%s(): TIMEOUT\n", __FUNCTION__);`
98			`return -ETIMEDOUT;`
99			`}`
100
101			`atomic_set ( &event->m_flag, 0 );`
102
103			`return 0;`
104			`}`
105
106			`////////////////////////////////////////////////////////////////////////////////`
107			`//`
108			`int GrabEvent( KEVENT * event, u32 timeout )`
109			`{`
110			`//printk ( "<0>%s(): E %p, T %d\n", __FUNCTION__, event, timeout );`
111
112			`if( CheckEventFlag( event ) ) {`
113			`ResetEvent(event);`
114			`return 0;`
115			`}`
116
117			`return WaitEvent(event, timeout);`
118			`}`

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[/] [pcie_ds_dma/] [trunk/] [soft/] [linux/] [driver/] [pexdrv/] [event.c] - Blame information for rev 6