ref: e81c54ba2ecc673a4d5f8aed0e9b52841fe07b0d
dir: /os/pc/io.h/
#define X86STEPPING(x) ((x) & 0x0F)
#define X86MODEL(x) (((x)>>4) & 0x0F)
#define X86FAMILY(x) (((x)>>8) & 0x0F)
enum {
VectorDBG = 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 */
VectorPF = 14, /* page fault */
Vector15 = 15, /* reserved */
VectorCERR = 16, /* coprocessor 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 */
char name[KNAMELEN]; /* of driver */
int isintr; /* interrupt or fault/trap */
int irq;
int tbdf;
int (*isr)(int); /* get isr bit for this irq */
int (*eoi)(int); /* eoi */
void (*f)(Ureg*, void*); /* handler to call */
void* a; /* argument to call it with */
} Vctl;
enum {
MaxEISA = 16,
CfgEISA = 0xC80,
};
typedef struct Pcisiz Pcisiz;
struct Pcisiz
{
Pcidev* dev;
int siz;
int bar;
};
#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 */
};