1 /*
2 * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "linux/interrupt.h"
33 #include "los_hwi.h"
34
35
linux_request_irq(unsigned int irq,irq_handler_t handler,unsigned long flags,const char * name,void * dev)36 int linux_request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
37 const char *name, void *dev)
38 {
39 UINT32 ret;
40 HwiIrqParam irqParam;
41
42 if (OS_INT_ACTIVE) {
43 return OS_ERRNO_HWI_INTERR;
44 }
45
46 irqParam.swIrq = (INT32)irq;
47 irqParam.pDevId = dev;
48 irqParam.pName = name;
49
50 ret = LOS_HwiCreate(irq, IRQ_DEFAULT_PRIORITY, (HWI_MODE_T)flags, (HWI_PROC_FUNC)handler, &irqParam);
51 if (ret == LOS_OK) {
52 HalIrqUnmask(irq);
53 }
54 return (INT32)ret;
55 }
56
linux_free_irq(unsigned int irq,void * devID)57 void linux_free_irq(unsigned int irq, void *devID)
58 {
59 HwiIrqParam irqParam;
60
61 if (OS_INT_ACTIVE) {
62 return;
63 }
64
65 irqParam.swIrq = (INT32)irq;
66 irqParam.pDevId = devID;
67
68 (VOID)LOS_HwiDelete(irq, &irqParam);
69 return;
70 }
71
linux_enable_irq(unsigned int irq)72 void linux_enable_irq(unsigned int irq)
73 {
74 HalIrqUnmask(irq);
75 }
76
linux_disable_irq(unsigned int irq)77 void linux_disable_irq(unsigned int irq)
78 {
79 HalIrqMask(irq);
80 }
81
82 #ifdef WORKQUEUE_SUPPORT_PRIORITY
irq_bottom_half(struct workqueue_struct * workQueue,irq_bottom_half_handler_t handler,void * data,unsigned int pri)83 bool irq_bottom_half(struct workqueue_struct *workQueue, irq_bottom_half_handler_t handler, void *data,
84 unsigned int pri)
85 #else
86 bool irq_bottom_half(struct workqueue_struct *workQueue, irq_bottom_half_handler_t handler, void *data)
87 #endif
88 {
89 struct work_struct *work = NULL;
90
91 if ((workQueue == NULL) || (handler == NULL)) {
92 return FALSE;
93 }
94
95 #ifdef WORKQUEUE_SUPPORT_PRIORITY
96 if ((pri >= OS_WORK_PRIORITY_DEFAULT) || (pri >= OS_WORK_PRIORITY_LOWEST)) {
97 return FALSE;
98 }
99 #endif
100
101 work = (struct work_struct *)LOS_MemAlloc(m_aucSysMem0, sizeof(struct work_struct));
102 if (work == NULL) {
103 return FALSE;
104 }
105
106 INIT_WORK(work, handler);
107
108 work->data = (atomic_long_t)data;
109 #ifdef WORKQUEUE_SUPPORT_PRIORITY
110 work->work_pri = pri;
111 #endif
112 if (!(queue_work(workQueue, work))) {
113 (VOID)LOS_MemFree(m_aucSysMem0, work);
114 return FALSE;
115 }
116 return TRUE;
117 }
118
119