ref: 1f6de2fe3823cc6e749b8254187e81e20589bae8
dir: /os/boot/pc/io.h/
/*
* programmable interrupt vectors (for the 8259's)
*/
enum
{
Bptvec= 3, /* breakpoints */
Mathemuvec= 7, /* math coprocessor emulation interrupt */
Mathovervec= 9, /* math coprocessor overrun interrupt */
Matherr1vec= 16, /* math coprocessor error interrupt */
Faultvec= 14, /* page fault */
Syscallvec= 64,
VectorPIC = 24, /* external [A]PIC interrupts */
VectorCLOCK = VectorPIC+0,
VectorKBD = VectorPIC+1,
VectorUART1 = VectorPIC+3,
VectorUART0 = VectorPIC+4,
VectorPCMCIA = VectorPIC+5,
VectorFLOPPY = VectorPIC+6,
VectorLPT = VectorPIC+7,
VectorIRQ7 = VectorPIC+7,
VectorAUX = VectorPIC+12, /* PS/2 port */
VectorIRQ13 = VectorPIC+13, /* coprocessor on x386 */
VectorATA0 = VectorPIC+14,
VectorATA1 = VectorPIC+15,
MaxVectorPIC = VectorPIC+15,
};
enum {
BusCBUS = 0, /* Corollary CBUS */
BusCBUSII, /* Corollary CBUS II */
BusEISA, /* Extended ISA */
BusFUTURE, /* IEEE Futurebus */
BusINTERN, /* Internal bus */
BusISA, /* Industry Standard Architecture */
BusMBI, /* Multibus I */
BusMBII, /* Multibus II */
BusMCA, /* Micro Channel Architecture */
BusMPI, /* MPI */
BusMPSA, /* MPSA */
BusNUBUS, /* Apple Macintosh NuBus */
BusPCI, /* Peripheral Component Interconnect */
BusPCMCIA, /* PC Memory Card International Association */
BusTC, /* DEC TurboChannel */
BusVL, /* VESA Local bus */
BusVME, /* VMEbus */
BusXPRESS, /* Express System Bus */
};
#define MKBUS(t,b,d,f) (((t)<<24)|(((b)&0xFF)<<16)|(((d)&0x1F)<<11)|(((f)&0x07)<<8))
#define BUSFNO(tbdf) (((tbdf)>>8)&0x07)
#define BUSDNO(tbdf) (((tbdf)>>11)&0x1F)
#define BUSBNO(tbdf) (((tbdf)>>16)&0xFF)
#define BUSTYPE(tbdf) ((tbdf)>>24)
#define BUSBDF(tbdf) ((tbdf)&0x00FFFF00)
#define BUSUNKNOWN (-1)
enum {
MaxEISA = 16,
CfgEISA = 0xC80,
};
/*
* PCI support code.
*/
enum { /* type 0 and type 1 pre-defined header */
PciVID = 0x00, /* vendor ID */
PciDID = 0x02, /* device ID */
PciPCR = 0x04, /* command */
PciPSR = 0x06, /* status */
PciRID = 0x08, /* revision ID */
PciCCRp = 0x09, /* programming interface class code */
PciCCRu = 0x0A, /* sub-class code */
PciCCRb = 0x0B, /* base class code */
PciCLS = 0x0C, /* cache line size */
PciLTR = 0x0D, /* latency timer */
PciHDT = 0x0E, /* header type */
PciBST = 0x0F, /* BIST */
PciBAR0 = 0x10, /* base address */
PciBAR1 = 0x14,
PciINTL = 0x3C, /* interrupt line */
PciINTP = 0x3D, /* interrupt pin */
};
/* ccrb (base class code) values; controller types */
enum {
Pcibcpci1 = 0, /* pci 1.0; no class codes defined */
Pcibcstore = 1, /* mass storage */
Pcibcnet = 2, /* network */
Pcibcdisp = 3, /* display */
Pcibcmmedia = 4, /* multimedia */
Pcibcmem = 5, /* memory */
Pcibcbridge = 6, /* bridge */
Pcibccomm = 7, /* simple comms (e.g., serial) */
Pcibcbasesys = 8, /* base system */
Pcibcinput = 9, /* input */
Pcibcdock = 0xa, /* docking stations */
Pcibcproc = 0xb, /* processors */
Pcibcserial = 0xc, /* serial bus (e.g., USB) */
Pcibcwireless = 0xd, /* wireless */
Pcibcintell = 0xe, /* intelligent i/o */
Pcibcsatcom = 0xf, /* satellite comms */
Pcibccrypto = 0x10, /* encryption/decryption */
Pcibcdacq = 0x11, /* data acquisition & signal proc. */
};
/* ccru (sub-class code) values; common cases only */
enum {
/* mass storage */
Pciscscsi = 0, /* SCSI */
Pciscide = 1, /* IDE (ATA) */
/* network */
Pciscether = 0, /* Ethernet */
/* display */
Pciscvga = 0, /* VGA */
Pciscxga = 1, /* XGA */
Pcisc3d = 2, /* 3D */
/* bridges */
Pcischostpci = 0, /* host/pci */
Pciscpcicpci = 1, /* pci/pci */
/* simple comms */
Pciscserial = 0, /* 16450, etc. */
Pciscmultiser = 1, /* multiport serial */
/* serial bus */
Pciscusb = 3, /* USB */
};
enum { /* type 0 pre-defined header */
PciBAR2 = 0x18,
PciBAR3 = 0x1C,
PciBAR4 = 0x20,
PciBAR5 = 0x24,
PciCIS = 0x28, /* cardbus CIS pointer */
PciSVID = 0x2C, /* subsystem vendor ID */
PciSID = 0x2E, /* cardbus CIS pointer */
PciEBAR0 = 0x30, /* expansion ROM base address */
PciMGNT = 0x3E, /* burst period length */
PciMLT = 0x3F, /* maximum latency between bursts */
};
enum { /* type 1 pre-defined header */
PciPBN = 0x18, /* primary bus number */
PciSBN = 0x19, /* secondary bus number */
PciUBN = 0x1A, /* subordinate bus number */
PciSLTR = 0x1B, /* secondary latency timer */
PciIBR = 0x1C, /* I/O base */
PciILR = 0x1D, /* I/O limit */
PciSPSR = 0x1E, /* secondary status */
PciMBR = 0x20, /* memory base */
PciMLR = 0x22, /* memory limit */
PciPMBR = 0x24, /* prefetchable memory base */
PciPMLR = 0x26, /* prefetchable memory limit */
PciPUBR = 0x28, /* prefetchable base upper 32 bits */
PciPULR = 0x2C, /* prefetchable limit upper 32 bits */
PciIUBR = 0x30, /* I/O base upper 16 bits */
PciIULR = 0x32, /* I/O limit upper 16 bits */
PciEBAR1 = 0x28, /* expansion ROM base address */
PciBCR = 0x3E, /* bridge control register */
};
enum { /* type 2 pre-defined header */
PciCBExCA = 0x10,
PciCBSPSR = 0x16,
PciCBPBN = 0x18, /* primary bus number */
PciCBSBN = 0x19, /* secondary bus number */
PciCBUBN = 0x1A, /* subordinate bus number */
PciCBSLTR = 0x1B, /* secondary latency timer */
PciCBMBR0 = 0x1C,
PciCBMLR0 = 0x20,
PciCBMBR1 = 0x24,
PciCBMLR1 = 0x28,
PciCBIBR0 = 0x2C, /* I/O base */
PciCBILR0 = 0x30, /* I/O limit */
PciCBIBR1 = 0x34, /* I/O base */
PciCBILR1 = 0x38, /* I/O limit */
PciCBBCTL = 0x3E, /* Bridge control */
PciCBSVID = 0x40, /* subsystem vendor ID */
PciCBSID = 0x42, /* subsystem ID */
PciCBLMBAR = 0x44, /* legacy mode base address */
};
typedef struct Pcisiz Pcisiz;
struct Pcisiz
{
Pcidev* dev;
int siz;
int bar;
};
typedef struct Pcidev Pcidev;
typedef struct Pcidev {
int tbdf; /* type+bus+device+function */
ushort vid; /* vendor ID */
ushort did; /* device ID */
ushort pcr;
uchar rid;
uchar ccrp;
uchar ccru;
uchar ccrb;
uchar cls;
uchar ltr;
struct {
ulong bar; /* base address */
int size;
} mem[6];
struct {
ulong bar;
int size;
} rom;
uchar intl; /* interrupt line */
Pcidev* list;
Pcidev* link; /* next device on this bno */
Pcidev* bridge; /* down a bus */
struct {
ulong bar;
int size;
} ioa, mema;
int pmrb; /* power management register block */
};
#define PCIWINDOW 0
#define PCIWADDR(va) (PADDR(va)+PCIWINDOW)
#define ISAWINDOW 0
#define ISAWADDR(va) (PADDR(va)+ISAWINDOW)
/*
* 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 */
};