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/*
* IRQ splitter device.
*
* Copyright (c) 2018 Linaro Limited.
* Written by Peter Maydell
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* This is a simple device which has one GPIO input line and multiple
* GPIO output lines. Any change on the input line is forwarded to all
* of the outputs.
*
* QEMU interface:
* + one unnamed GPIO input: the input line
* + N unnamed GPIO outputs: the output lines
* + QOM property "num-lines": sets the number of output lines
*/
#ifndef HW_SPLIT_IRQ_H
#define HW_SPLIT_IRQ_H
#include "hw/sysbus.h"
#include "qom/object.h"
#define TYPE_SPLIT_IRQ "split-irq"
#define MAX_SPLIT_LINES 16
typedef struct SplitIRQ SplitIRQ;
DECLARE_INSTANCE_CHECKER(SplitIRQ, SPLIT_IRQ,
TYPE_SPLIT_IRQ)
struct SplitIRQ {
DeviceState parent_obj;
qemu_irq out_irq[MAX_SPLIT_LINES];
uint16_t num_lines;
};
#endif
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