include/hw/or-irq.h

   1 /*
   2  * QEMU IRQ/GPIO common code.
   3  *
   4  * Copyright (c) 2016 Alistair Francis <alistair@alistair23.me>.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef HW_OR_IRQ_H
  26 #define HW_OR_IRQ_H
  27
  28 #include "hw/sysbus.h"
  29 #include "qom/object.h"
  30
  31 #define TYPE_OR_IRQ "or-irq"
  32
  33 /* This can safely be increased if necessary without breaking
  34  * migration compatibility (as long as it remains greater than 15).
  35  */
  36 #define MAX_OR_LINES      48
  37
  38 typedef struct OrIRQState qemu_or_irq;
  39
  40 DECLARE_INSTANCE_CHECKER(qemu_or_irq, OR_IRQ,
  41                          TYPE_OR_IRQ)
  42
  43 struct OrIRQState {
  44     DeviceState parent_obj;
  45
  46     qemu_irq out_irq;
  47     bool levels[MAX_OR_LINES];
  48     uint16_t num_lines;
  49 };
  50
  51 #endif