2002/0215/pc/usb.h (diff list | history)

pc/usb.h on 2002/0215
2002/0215		typedef struct Ctlr Ctlr; typedef struct Endpt Endpt; typedef struct Udev Udev; typedef struct Usbhost Usbhost; enum { MaxUsb = 10, /* max number of USB Host Controller Interfaces (Usbhost*) */ MaxUsbDev = 32, /* max number of attached USB devices, including root hub (Udev*) */ /* * USB packet definitions... */ TokIN = 0x69, TokOUT = 0xE1, TokSETUP = 0x2D, /* request type */ RH2D = 0<<7, RD2H = 1<<7, Rstandard = 0<<5, Rclass = 1<<5, Rvendor = 2<<5, Rdevice = 0, Rinterface = 1, Rendpt = 2, Rother = 3, }; #define Class(csp) ((csp)&0xff) #define Subclass(csp) (((csp)>>8)&0xff) #define Proto(csp) (((csp)>>16)&0xff) #define CSP(c, s, p) ((c) | ((s)<<8) | ((p)<<16)) /* * device endpoint */ struct Endpt { Ref; Lock; int x; /* index in Udev.ep */ int id; /* hardware endpoint address */ int maxpkt; /* maximum packet size (from endpoint descriptor) */ int data01; /* 0=DATA0, 1=DATA1 */ uchar eof; ulong csp; uchar mode; /* OREAD, OWRITE, ORDWR */ uchar nbuf; /* number of buffers allowed */ uchar iso; uchar debug; uchar active; /* listed for examination by interrupts */ int setin; /* ISO related: */ int hz; int remain; /* for packet size calculations */ int samplesz; int sched; /* schedule index; -1 if undefined or aperiodic */ int pollms; /* polling interval in msec */ int psize; /* (remaining) size of this packet */ int off; /* offset into packet */ /* Real-time iso stuff */ ulong foffset; /* file offset (to detect seeks) */ ulong poffset; /* offset of next packet to be queued */ ulong toffset; /* offset associated with time */ vlong time; /* timeassociated with offset */ int buffered; /* bytes captured but unread, or written but unsent */ /* end ISO stuff */ Udev* dev; /* owning device */ ulong nbytes; ulong nblocks; void *private; // all the rest could (should?) move to the driver private structure; except perhaps err QLock rlock; Rendez rr; Queue* rq; QLock wlock; Rendez wr; Queue* wq; int ntd; char* err; // needs to be global for unstall; fix? Endpt* activef; /* active endpoint list */ }; /* device parameters */ enum { /* Udev.state */ Disabled = 0, Attached, Enabled, Assigned, Configured, /* Udev.class */ Noclass = 0, Hubclass = 9, }; /* * active USB device */ struct Udev { Ref; Lock; Usbhost *uh; int x; /* index in usbdev[] */ int busy; int state; int id; uchar port; /* port number on connecting hub */ uchar root; ulong csp; int ls; int npt; Endpt* ep[16]; /* active end points */ Udev* ports; /* active ports, if hub */ Udev* next; /* next device on this hub */ }; struct Usbhost { ISAConf; /* hardware info */ int ctlrno; int tbdf; /* type+busno+devno+funcno */ void (*init)(Usbhost*); /* filled in by reset routine */ void (*interrupt)(Ureg*, void*); void (*portinfo)(Usbhost*, char*, char*); void (*portreset)(Usbhost*, int); void (*portenable)(Usbhost*, int, int); void (*epalloc)(Usbhost*, Endpt*); void (*epfree)(Usbhost*, Endpt*); void (*epopen)(Usbhost*, Endpt*); void (*epclose)(Usbhost*, Endpt*); void (*epmode)(Usbhost*, Endpt*); long (*read)(Usbhost*, Endpt*, void*, long, vlong); long (*write)(Usbhost*, Endpt*, void*, long, vlong, int); void *ctlr; }; extern void addusbhost(char*, int(*)(Usbhost*));