1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
pci.h
PCI bus
***************************************************************************/
#ifndef MAME_BUS_LPCI_PCI_H
#define MAME_BUS_LPCI_PCI_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class pci_bus_device;
// ======================> pci_device_interface
class pci_device_interface : public device_interface
{
public:
// construction/destruction
virtual ~pci_device_interface();
virtual uint32_t pci_read(pci_bus_device *pcibus, int function, int offset, uint32_t mem_mask) = 0;
virtual void pci_write(pci_bus_device *pcibus, int function, int offset, uint32_t data, uint32_t mem_mask) = 0;
virtual void remap(int space_id, offs_t start, offs_t end) {}
void set_pci_bus(pci_bus_device *bus) { m_pci_bus = bus; }
protected:
pci_device_interface(const machine_config &mconfig, device_t &device);
pci_bus_device *m_pci_bus;
};
class pci_connector_device : public device_t,
public device_single_card_slot_interface<pci_device_interface>
{
public:
template <typename T>
pci_connector_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt, bool fixed)
: pci_connector_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(fixed);
}
pci_connector_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~pci_connector_device();
pci_device_interface *get_device();
protected:
virtual void device_start() override ATTR_COLD;
};
DECLARE_DEVICE_TYPE(PCI_CONNECTOR, pci_connector_device)
// ======================> pci_bus_device
class pci_bus_device : public device_t
{
public:
// construction/destruction
pci_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
uint32_t read(offs_t offset, uint32_t mem_mask = ~0);
void write(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint64_t read_64be(offs_t offset, uint64_t mem_mask = ~0);
void write_64be(offs_t offset, uint64_t data, uint64_t mem_mask = ~0);
void set_busnum(int busnum) { m_busnum = busnum; }
template <typename T>
void set_father(T &&tag) { m_father.set_tag(std::forward<T>(tag)); }
void set_device(int num, const char *tag) { m_devtag[num] = tag; }
pci_bus_device *pci_search_bustree(int busnum, int devicenum, pci_bus_device *pcibus);
void add_sibling(pci_bus_device *sibling, int busnum);
void remap(int space_id, offs_t start, offs_t end);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_post_load() override;
private:
uint8_t m_busnum;
const char * m_devtag[32];
pci_device_interface *m_device[32];
pci_bus_device * m_siblings[8];
uint8_t m_siblings_busnum[8];
int m_siblings_count;
offs_t m_address;
int8_t m_devicenum; // device number we are addressing
int8_t m_busnumber; // pci bus number we are addressing
pci_bus_device * m_busnumaddr; // pci bus we are addressing
optional_device<pci_bus_device> m_father;
};
// device type definition
DECLARE_DEVICE_TYPE(PCI_BUS, pci_bus_device)
#endif // MAME_BUS_LPCI_PCI_H
|