xref: /openbmc/qemu/include/hw/or-irq.h (revision 988717b46b6424907618cb845ace9d69062703af)
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  #define OR_IRQ(obj) OBJECT_CHECK(qemu_or_irq, (obj), TYPE_OR_IRQ)
41  
42  struct OrIRQState {
43      DeviceState parent_obj;
44  
45      qemu_irq out_irq;
46      bool levels[MAX_OR_LINES];
47      uint16_t num_lines;
48  };
49  
50  #endif
51