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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
enum {
VectorDE = 1, /* debug exception */
VectorNMI = 2, /* non-maskable interrupt */
VectorBPT = 3, /* breakpoint */
VectorUD = 6, /* invalid opcode exception */
VectorCNA = 7, /* coprocessor not available */
Vector2F = 8, /* double fault */
VectorCSO = 9, /* coprocessor segment overrun */
VectorSNP = 11, /* segment not present */
VectorGPF = 13, /* general protection fault */
VectorPF = 14, /* page fault */
Vector15 = 15, /* reserved */
VectorCERR = 16, /* coprocessor error */
VectorAC = 17, /* alignment check */
VectorMC = 18, /* machine check */
VectorSIMD = 19, /* simd error */
VectorPIC = 32, /* external i8259 interrupts */
IrqCLOCK = 0,
IrqKBD = 1,
IrqUART1 = 3,
IrqUART0 = 4,
IrqPCMCIA = 5,
IrqFLOPPY = 6,
IrqLPT = 7,
IrqIRQ7 = 7,
IrqAUX = 12, /* PS/2 port */
IrqIRQ13 = 13, /* coprocessor on 386 */
IrqATA0 = 14,
IrqATA1 = 15,
MaxIrqPIC = 15,
VectorLAPIC = VectorPIC+16, /* local APIC interrupts */
IrqLINT0 = 16, /* LINT[01] must be offsets 0 and 1 */
IrqLINT1 = 17,
IrqTIMER = 18,
IrqERROR = 19,
IrqPCINT = 20,
IrqSPURIOUS = 31, /* must have bits [3-0] == 0x0F */
MaxIrqLAPIC = 31,
VectorSYSCALL = 64,
VectorAPIC = 65, /* external APIC interrupts */
MaxVectorAPIC = 255,
};
typedef struct Vctl {
Vctl *next; /* handlers on this vector */
void (*f)(Ureg*, void*); /* handler to call */
void *a; /* argument to call it with */
int (*isr)(int); /* get isr bit for this irq */
int (*eoi)(int); /* eoi */
int (*enable)(Vctl*, int);
int (*disable)(Vctl*, int);
void *aux;
int irq;
int tbdf;
int vno;
int cpu;
int local;
char name[KNAMELEN]; /* of driver */
} Vctl;
enum {
MaxEISA = 16,
CfgEISA = 0xC80,
};
#define PCIWINDOW 0
#define PCIWADDR(va) (PADDR(va)+PCIWINDOW)
#define ISAWINDOW 0
#define ISAWADDR(va) (PADDR(va)+ISAWINDOW)
#define BUSUNKNOWN (-1)
/* SMBus transactions */
enum
{
SMBquick, /* sends address only */
/* write */
SMBsend, /* sends address and cmd */
SMBbytewrite, /* sends address and cmd and 1 byte */
SMBwordwrite, /* sends address and cmd and 2 bytes */
/* read */
SMBrecv, /* sends address, recvs 1 byte */
SMBbyteread, /* sends address and cmd, recv's byte */
SMBwordread, /* sends address and cmd, recv's 2 bytes */
};
typedef struct SMBus SMBus;
struct SMBus {
QLock; /* mutex */
Rendez r; /* rendezvous point for completion interrupts */
void *arg; /* implementation dependent */
ulong base; /* port or memory base of smbus */
int busy;
void (*transact)(SMBus*, int, int, int, uchar*);
};
/*
* PCMCIA support code.
*/
typedef struct PCMslot PCMslot;
typedef struct PCMconftab PCMconftab;
/*
* Map between ISA memory space and PCMCIA card memory space.
*/
struct PCMmap {
ulong ca; /* card address */
ulong cea; /* card end address */
ulong isa; /* ISA address */
int len; /* length of the ISA area */
int attr; /* attribute memory */
int ref;
};
/* configuration table entry */
struct PCMconftab
{
int index;
ushort irqs; /* legal irqs */
uchar irqtype;
uchar bit16; /* true for 16 bit access */
struct {
ulong start;
ulong len;
} io[16];
int nio;
uchar vpp1;
uchar vpp2;
uchar memwait;
ulong maxwait;
ulong readywait;
ulong otherwait;
};
/* a card slot */
struct PCMslot
{
Lock;
int ref;
void *cp; /* controller for this slot */
long memlen; /* memory length */
uchar base; /* index register base */
uchar slotno; /* slot number */
/* status */
uchar special; /* in use for a special device */
uchar already; /* already inited */
uchar occupied;
uchar battery;
uchar wrprot;
uchar powered;
uchar configed;
uchar enabled;
uchar busy;
/* cis info */
ulong msec; /* time of last slotinfo call */
char verstr[512]; /* version string */
int ncfg; /* number of configurations */
struct {
ushort cpresent; /* config registers present */
ulong caddr; /* relative address of config registers */
} cfg[8];
int nctab; /* number of config table entries */
PCMconftab ctab[8];
PCMconftab *def; /* default conftab */
/* memory maps */
Lock mlock; /* lock down the maps */
int time;
PCMmap mmap[4]; /* maps, last is always for the kernel */
};
|
