libmetal
irq.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2016, Xilinx Inc. and Contributors. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * 1. Redistributions of source code must retain the above copyright notice,
8  * this list of conditions and the following disclaimer.
9  *
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * 3. Neither the name of Xilinx nor the names of its contributors may be used
15  * to endorse or promote products derived from this software without
16  * specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /*
32  * @file irq.h
33  * @brief Interrupt handling primitives for libmetal.
34  */
35 
36 #ifndef __METAL_IRQ__H__
37 #define __METAL_IRQ__H__
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
46 #include <stdlib.h>
47 
49 #define METAL_IRQ_NOT_HANDLED 0
50 #define METAL_IRQ_HANDLED 1
51 
58 typedef int (*metal_irq_handler) (int irq, void *priv);
59 
60 struct metal_device;
61 
83 int metal_irq_register(int irq,
84  metal_irq_handler irq_handler,
85  struct metal_device *dev,
86  void *drv_id);
87 
92 unsigned int metal_irq_save_disable(void);
93 
98 void metal_irq_restore_enable(unsigned int flags);
99 
107 void metal_irq_enable(unsigned int vector);
108 
116 void metal_irq_disable(unsigned int vector);
117 
118 #include "metal/system/@PROJECT_SYSTEM@/irq.h"
119 
122 #ifdef __cplusplus
123 }
124 #endif
125 
126 #endif /* __METAL_IRQ__H__ */
unsigned int metal_irq_save_disable(void)
disable interrupts
Definition: irq.c:152
int metal_irq_register(int irq, metal_irq_handler irq_handler, struct metal_device *dev, void *drv_id)
Register interrupt or register interrupt handling of a specific interrupt.
Definition: irq.c:65
Definition: device.h:95
void metal_irq_enable(unsigned int vector)
metal_irq_enable
Definition: irq.c:172
void metal_irq_restore_enable(unsigned int flags)
restore interrupts to their previous state
Definition: irq.c:162
void metal_irq_disable(unsigned int vector)
metal_irq_disable
Definition: irq.c:177
int(* metal_irq_handler)(int irq, void *priv)
type of interrupt handler
Definition: irq.h:58