xref: /openbmc/qemu/include/hw/ipack/ipack.h (revision 4a09d0bb)
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.h"
15 
16 typedef struct IPackBus IPackBus;
17 
18 #define TYPE_IPACK_BUS "IndustryPack"
19 #define IPACK_BUS(obj) OBJECT_CHECK(IPackBus, (obj), TYPE_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 typedef struct IPackDevice IPackDevice;
32 typedef struct IPackDeviceClass IPackDeviceClass;
33 
34 #define TYPE_IPACK_DEVICE "ipack-device"
35 #define IPACK_DEVICE(obj) \
36      OBJECT_CHECK(IPackDevice, (obj), TYPE_IPACK_DEVICE)
37 #define IPACK_DEVICE_CLASS(klass)                                        \
38      OBJECT_CLASS_CHECK(IPackDeviceClass, (klass), TYPE_IPACK_DEVICE)
39 #define IPACK_DEVICE_GET_CLASS(obj) \
40      OBJECT_GET_CLASS(IPackDeviceClass, (obj), TYPE_IPACK_DEVICE)
41 
42 struct IPackDeviceClass {
43     /*< private >*/
44     DeviceClass parent_class;
45     /*< public >*/
46 
47     DeviceRealize realize;
48     DeviceUnrealize unrealize;
49 
50     uint16_t (*io_read)(IPackDevice *dev, uint8_t addr);
51     void (*io_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
52 
53     uint16_t (*id_read)(IPackDevice *dev, uint8_t addr);
54     void (*id_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
55 
56     uint16_t (*int_read)(IPackDevice *dev, uint8_t addr);
57     void (*int_write)(IPackDevice *dev, uint8_t addr, uint16_t val);
58 
59     uint16_t (*mem_read16)(IPackDevice *dev, uint32_t addr);
60     void (*mem_write16)(IPackDevice *dev, uint32_t addr, uint16_t val);
61 
62     uint8_t (*mem_read8)(IPackDevice *dev, uint32_t addr);
63     void (*mem_write8)(IPackDevice *dev, uint32_t addr, uint8_t val);
64 };
65 
66 struct IPackDevice {
67     /*< private >*/
68     DeviceState parent_obj;
69     /*< public >*/
70 
71     int32_t slot;
72     /* IRQ objects for the IndustryPack INT0# and INT1# */
73     qemu_irq *irq;
74 };
75 
76 extern const VMStateDescription vmstate_ipack_device;
77 
78 #define VMSTATE_IPACK_DEVICE(_field, _state)                            \
79     VMSTATE_STRUCT(_field, _state, 1, vmstate_ipack_device, IPackDevice)
80 
81 IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot);
82 void ipack_bus_new_inplace(IPackBus *bus, size_t bus_size,
83                            DeviceState *parent,
84                            const char *name, uint8_t n_slots,
85                            qemu_irq_handler handler);
86 
87 #endif
88