xref: /openbmc/qemu/include/hw/ipack/ipack.h (revision db0f08df)
1 /*
2  * QEMU IndustryPack emulation
3  *
4  * Copyright (C) 2012 Igalia, S.L.
5  * Author: Alberto Garcia <berto@igalia.com>
6  *
7  * This code is licensed under the GNU GPL v2 or (at your option) any
8  * later version.
9  */
10 
11 #ifndef QEMU_IPACK_H
12 #define QEMU_IPACK_H
13 
14 #include "hw/qdev-core.h"
15 #include "qom/object.h"
16 
17 
18 #define TYPE_IPACK_BUS "IndustryPack"
19 OBJECT_DECLARE_SIMPLE_TYPE(IPackBus, IPACK_BUS)
20 
21 struct IPackBus {
22     /*< private >*/
23     BusState parent_obj;
24 
25     /* All fields are private */
26     uint8_t n_slots;
27     uint8_t free_slot;
28     qemu_irq_handler set_irq;
29 };
30 
31 
32 #define TYPE_IPACK_DEVICE "ipack-device"
33 OBJECT_DECLARE_TYPE(IPackDevice, IPackDeviceClass,
34                     IPACK_DEVICE)
35 
36 struct IPackDeviceClass {
37     /*< private >*/
38     DeviceClass parent_class;
39     /*< public >*/
40 
41     DeviceRealize realize;
42     DeviceUnrealize unrealize;
43 
44     uint16_t (*io_read)(IPackDevice *dev, uint8_t addr);
45     void (*io_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
46 
47     uint16_t (*id_read)(IPackDevice *dev, uint8_t addr);
48     void (*id_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
49 
50     uint16_t (*int_read)(IPackDevice *dev, uint8_t addr);
51     void (*int_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
52 
53     uint16_t (*mem_read16)(IPackDevice *dev, uint32_t addr);
54     void (*mem_write16)(IPackDevice *dev, uint32_t addr, uint16_t val);
55 
56     uint8_t (*mem_read8)(IPackDevice *dev, uint32_t addr);
57     void (*mem_write8)(IPackDevice *dev, uint32_t addr, uint8_t val);
58 };
59 
60 struct IPackDevice {
61     /*< private >*/
62     DeviceState parent_obj;
63     /*< public >*/
64 
65     int32_t slot;
66     /* IRQ objects for the IndustryPack INT0# and INT1# */
67     qemu_irq *irq;
68 };
69 
70 extern const VMStateDescription vmstate_ipack_device;
71 
72 #define VMSTATE_IPACK_DEVICE(_field, _state)                            \
73     VMSTATE_STRUCT(_field, _state, 1, vmstate_ipack_device, IPackDevice)
74 
75 IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot);
76 void ipack_bus_new_inplace(IPackBus *bus, size_t bus_size,
77                            DeviceState *parent,
78                            const char *name, uint8_t n_slots,
79                            qemu_irq_handler handler);
80 
81 #endif
82