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typedef struct Block Block;
typedef struct Queue Queue;
typedef struct List {
void *next;
} List;
typedef struct {
int fake;
int pri;
} Lock;
#define lock(x)
#define unlock(x)
typedef struct Alarm {
List;
int busy;
long dt;
void (*f)(void*);
void *arg;
} Alarm;
enum {
Eaddrlen = 6,
ETHERMINTU = 60, /* minimum transmit size */
ETHERMAXTU = 1514, /* maximum transmit size */
ETHERHDRSIZE = 14, /* size of an ethernet header */
MaxEther = 2,
};
typedef struct {
uchar d[Eaddrlen];
uchar s[Eaddrlen];
uchar type[2];
uchar data[1500];
uchar crc[4];
} Etherpkt;
extern uchar broadcast[Eaddrlen];
enum {
Npart = 20+2, /* 8 sub partitions, disk, and partition */
Maxxfer = 16*1024, /* maximum transfer size/cmd */
};
typedef struct {
ulong start;
ulong end;
char name[NAMELEN+1];
} Partition;
typedef struct {
int online;
int npart; /* number of real partitions */
Partition p[Npart];
ulong offset;
Partition *current; /* current partition */
ulong cap; /* total bytes */
int bytes; /* bytes/sector */
int sectors; /* sectors/track */
int heads; /* heads/cyl */
long cyl; /* cylinders/drive */
char lba; /* true if drive has logical block addressing */
char multi; /* non-zero if drive does multiple block xfers */
} Disc;
enum {
ScsiTestunit = 0x00,
ScsiExtsens = 0x03,
ScsiInquiry = 0x12,
ScsiModesense = 0x1a,
ScsiStartunit = 0x1B,
ScsiStopunit = 0x1B,
ScsiGetcap = 0x25,
ScsiRead = 0x08,
ScsiWrite = 0x0a,
ScsiExtread = 0x28,
ScsiExtwrite = 0x2a,
/* data direction */
ScsiIn = 1,
ScsiOut = 0,
};
typedef struct Scsibuf Scsibuf;
typedef struct Scsibuf {
void* virt;
void* phys;
Scsibuf* next;
};
typedef struct Scsidata {
uchar* base;
uchar* lim;
uchar* ptr;
} Scsidata;
typedef struct Ureg Ureg;
typedef struct Scsi {
ulong pid;
ushort target;
ushort lun;
ushort rflag;
ushort status;
Scsidata cmd;
Scsidata data;
Scsibuf* b;
uchar* save;
uchar cmdblk[16];
} Scsi;
typedef struct Segdesc {
ulong d0;
ulong d1;
} Segdesc;
typedef struct Mach {
ulong ticks; /* of the clock since boot time */
ulong delayloop;
int speed; /* general system clock in MHz */
int oscclk; /* oscillator frequency in MHz */
void* alarm; /* alarms bound to this clock */
} Mach;
extern Mach *m;
#define E_MAGIC ((((4*20)+0)*20)+7)
typedef struct Exec Exec;
struct Exec
{
uchar magic[4]; /* magic number */
uchar text[4]; /* size of text segment */
uchar data[4]; /* size of initialized data */
uchar bss[4]; /* size of uninitialized data */
uchar syms[4]; /* size of symbol table */
uchar entry[4]; /* entry point */
uchar spsz[4]; /* size of sp/pc offset table */
uchar pcsz[4]; /* size of pc/line number table */
};
/*
* bootline passed by boot program
*/
#define BOOTLINE ((char *)0x18000-150)
/*
* Where we leave configuration info.
*/
#define BOOTARGS ((char*)(0x18000))
#define BOOTARGSLEN 1024
#define MAXCONF 32
/*
* a parsed plan9.ini line
*/
#define ISAOPTLEN 16
#define NISAOPT 8
typedef struct ISAConf {
char type[NAMELEN];
ulong port;
ulong irq;
ulong mem;
ulong size;
uchar ea[6];
int nopt;
char opt[NISAOPT][ISAOPTLEN];
} ISAConf;
typedef struct {
int size;
ulong addr;
} Map;
typedef struct {
char* name;
Map* map;
Map* mapend;
Lock;
} RMap;
typedef struct PCIcfg PCIcfg;
extern uchar* vgamem;
struct Block {
uchar *rp;
uchar *wp;
uchar *lim;
uchar *data;
Block* next;
ulong magic;
};
#define BLEN(b) ((b)->wp-(b)->rp)
typedef struct QLock {
int dummy;
} QLock;
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