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
34int 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
55void 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
70void linux_enable_irq(unsigned int irq)
71{
72    HalIrqUnmask(irq);
73}
74
75void linux_disable_irq(unsigned int irq)
76{
77    HalIrqMask(irq);
78}
79
80#ifdef WORKQUEUE_SUPPORT_PRIORITY
81bool irq_bottom_half(struct workqueue_struct *workQueue, irq_bottom_half_handler_t handler, void *data,
82                     unsigned int pri)
83#else
84bool 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