1 /*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "linux/interrupt.h"
31 #include "los_hwi.h"
32
33
linux_request_irq(unsigned int irq,irq_handler_t handler,unsigned long flags,const char * name,void * dev)34 int linux_request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
35 const char *name, void *dev)
36 {
37 UINT32 ret;
38 HwiIrqParam irqParam;
39
40 if (OS_INT_ACTIVE) {
41 return OS_ERRNO_HWI_INTERR;
42 }
43
44 irqParam.swIrq = (INT32)irq;
45 irqParam.pDevId = dev;
46 irqParam.pName = name;
47
48 ret = LOS_HwiCreate(irq, IRQ_DEFAULT_PRIORITY, (HWI_MODE_T)flags, (HWI_PROC_FUNC)handler, &irqParam);
49 if (ret == LOS_OK) {
50 HalIrqUnmask(irq);
51 }
52 return (INT32)ret;
53 }
54
linux_free_irq(unsigned int irq,void * devID)55 void linux_free_irq(unsigned int irq, void *devID)
56 {
57 HwiIrqParam irqParam;
58
59 if (OS_INT_ACTIVE) {
60 return;
61 }
62
63 irqParam.swIrq = (INT32)irq;
64 irqParam.pDevId = devID;
65
66 (VOID)LOS_HwiDelete(irq, &irqParam);
67 return;
68 }
69
linux_enable_irq(unsigned int irq)70 void linux_enable_irq(unsigned int irq)
71 {
72 HalIrqUnmask(irq);
73 }
74
linux_disable_irq(unsigned int irq)75 void linux_disable_irq(unsigned int irq)
76 {
77 HalIrqMask(irq);
78 }
79
80 #ifdef WORKQUEUE_SUPPORT_PRIORITY
irq_bottom_half(struct workqueue_struct * workQueue,irq_bottom_half_handler_t handler,void * data,unsigned int pri)81 bool irq_bottom_half(struct workqueue_struct *workQueue, irq_bottom_half_handler_t handler, void *data,
82 unsigned int pri)
83 #else
84 bool irq_bottom_half(struct workqueue_struct *workQueue, irq_bottom_half_handler_t handler, void *data)
85 #endif
86 {
87 struct work_struct *work = NULL;
88
89 if ((workQueue == NULL) || (handler == NULL)) {
90 return FALSE;
91 }
92
93 #ifdef WORKQUEUE_SUPPORT_PRIORITY
94 if ((pri >= OS_WORK_PRIORITY_DEFAULT) || (pri >= OS_WORK_PRIORITY_LOWEST)) {
95 return FALSE;
96 }
97 #endif
98
99 work = (struct work_struct *)LOS_MemAlloc(m_aucSysMem0, sizeof(struct work_struct));
100 if (work == NULL) {
101 return FALSE;
102 }
103
104 INIT_WORK(work, handler);
105
106 work->data = (atomic_long_t)data;
107 #ifdef WORKQUEUE_SUPPORT_PRIORITY
108 work->work_pri = pri;
109 #endif
110 if (!(queue_work(workQueue, work))) {
111 (VOID)LOS_MemFree(m_aucSysMem0, work);
112 return FALSE;
113 }
114 return TRUE;
115 }
116
117