jehanne/sys/include/usb/hid.h

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/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
/*
* USB keyboard/mouse constants
*/
typedef struct Chain Chain;
typedef struct HidInterface HidInterface;
typedef struct HidRepTempl HidRepTempl;
enum {
Stack = 32 * 1024,
/* HID class subclass protocol ids */
PtrCSP = 0x020103, /* mouse.boot.hid */
KbdCSP = 0x010103, /* keyboard.boot.hid */
/* Requests */
Getproto = 0x03,
Setidle = 0x0a,
Setproto = 0x0b,
/* protocols for SET_PROTO request */
Bootproto = 0,
Reportproto = 1,
};
enum {
/* keyboard modifier bits */
Mlctrl = 0,
Mlshift = 1,
Mlalt = 2,
Mlgui = 3,
Mrctrl = 4,
Mrshift = 5,
Mralt = 6,
Mrgui = 7,
/* masks for byte[0] */
Mctrl = 1<<Mlctrl | 1<<Mrctrl,
Mshift = 1<<Mlshift | 1<<Mrshift,
Malt = 1<<Mlalt | 1<<Mralt,
Mcompose = 1<<Mlalt,
Maltgr = 1<<Mralt,
Mgui = 1<<Mlgui | 1<<Mrgui,
MaxAcc = 3, /* max. ptr acceleration */
PtrMask= 0xf, /* 4 buttons: should allow for more. */
};
/*
* Plan 9 keyboard driver constants.
*/
enum {
/* Scan codes (see kbd.c) */
SCesc1 = 0xe0, /* first of a 2-character sequence */
SCesc2 = 0xe1,
SClshift = 0x2a,
SCrshift = 0x36,
SCctrl = 0x1d,
SCcompose = 0x38,
Keyup = 0x80, /* flag bit */
Keymask = 0x7f, /* regular scan code bits */
};
int kbmain(Dev *d, int argc, char*argv[]);
enum{
MaxChLen = 64, /* bytes */
};
struct Chain {
int b; /* offset start in bits, (first full) */
int e; /* offset end in bits (first empty) */
uint8_t buf[MaxChLen];
};
#define MSK(nbits) ((1UL << (nbits)) - 1)
#define IsCut(bbits, ebits) (((ebits)/8 - (bbits)/8) > 0)
enum {
KindPad = 0,
KindButtons,
KindX,
KindY,
KindWheel,
MaxVals = 16,
MaxIfc = 8,
};
struct HidInterface {
uint32_t v[MaxVals]; /* one ulong per val should be enough */
uint8_t kind[MaxVals];
int nbits;
int count;
};
struct HidRepTempl{
int id; /* id which may not be present */
uint32_t sz; /* in bytes */
int nifcs;
HidInterface ifcs[MaxIfc];
};
enum {
/* report types */
HidReportApp = 0x01,
HidTypeUsgPg = 0x05,
HidPgButts = 0x09,
HidTypeRepSz = 0x75,
HidTypeCnt = 0x95,
HidCollection = 0xa1,
HidTypeUsg = 0x09,
HidPtr = 0x01,
HidX = 0x30,
HidY = 0x31,
HidZ = 0x32,
HidWheel = 0x38,
HidInput = 0x81,
HidReportId = 0x85,
HidReportIdPtr = 0x01,
HidEnd = 0xc0,
};
void dumpreport(HidRepTempl *templ);
int hidifcval(HidRepTempl *templ, int kind, int n);
int parsereport(HidRepTempl *templ, Chain *rep);
int parsereportdesc(HidRepTempl *temp, uint8_t *repdesc, int repsz);