| 0,0 → 1,104 |
|---|
| /* |
| * Copyright (C) 1998 Itai Nahshon, Michael Schimek |
| */ |
| |
| /* $XFree86: xc/programs/Xserver/hw/xfree86/i2c/xf86i2c.h,v 1.10 2003/07/16 01:38:47 dawes Exp $ */ |
| #ifndef _XF86I2C_H |
| #define _XF86I2C_H |
| |
| //#include "regionstr.h" |
| |
| typedef unsigned char I2CByte; |
| typedef unsigned short I2CSlaveAddr; |
| |
| typedef struct _I2CBusRec *I2CBusPtr; |
| typedef struct _I2CDevRec *I2CDevPtr; |
| |
| /* I2C masters have to register themselves */ |
| |
| typedef union _DevUnion { |
| pointer ptr; |
| long val; |
| unsigned long uval; |
| } DevUnion; |
| |
| |
| |
| typedef struct _I2CBusRec { |
| char * BusName; |
| int scrnIndex; |
| |
| void (*I2CUDelay) (I2CBusPtr b, int usec); |
| |
| void (*I2CPutBits)(I2CBusPtr b, int scl, int sda); |
| void (*I2CGetBits)(I2CBusPtr b, int *scl, int *sda); |
| |
| /* Look at the generic routines to see how these functions should behave. */ |
| |
| Bool (*I2CStart) (I2CBusPtr b, int timeout); |
| Bool (*I2CAddress)(I2CDevPtr d, I2CSlaveAddr); |
| void (*I2CStop) (I2CDevPtr d); |
| Bool (*I2CPutByte)(I2CDevPtr d, I2CByte data); |
| Bool (*I2CGetByte)(I2CDevPtr d, I2CByte *data, Bool); |
| |
| DevUnion DriverPrivate; |
| |
| int HoldTime; /* 1 / bus clock frequency, 5 or 2 usec */ |
| |
| int BitTimeout; /* usec */ |
| int ByteTimeout; /* usec */ |
| int AcknTimeout; /* usec */ |
| int StartTimeout; /* usec */ |
| int RiseFallTime; /* usec */ |
| |
| I2CDevPtr FirstDev; |
| I2CBusPtr NextBus; |
| Bool (*I2CWriteRead)(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite, |
| I2CByte *ReadBuffer, int nRead); |
| } I2CBusRec; |
| |
| I2CBusPtr xf86CreateI2CBusRec(void); |
| void xf86DestroyI2CBusRec(I2CBusPtr pI2CBus, Bool unalloc, Bool devs_too); |
| Bool xf86I2CBusInit(I2CBusPtr pI2CBus); |
| I2CBusPtr xf86I2CFindBus(RHDPtr rhdPtr, char *name); |
| int xf86I2CGetScreenBuses(RHDPtr rhdPtr, I2CBusPtr **pppI2CBus); |
| |
| |
| /* I2C slave devices */ |
| |
| typedef struct _I2CDevRec { |
| char * DevName; |
| |
| int BitTimeout; /* usec */ |
| int ByteTimeout; /* usec */ |
| int AcknTimeout; /* usec */ |
| int StartTimeout; /* usec */ |
| |
| I2CSlaveAddr SlaveAddr; |
| I2CBusPtr pI2CBus; |
| I2CDevPtr NextDev; |
| DevUnion DriverPrivate; |
| } I2CDevRec; |
| |
| I2CDevPtr xf86CreateI2CDevRec(void); |
| void xf86DestroyI2CDevRec(I2CDevPtr pI2CDev, Bool unalloc); |
| Bool xf86I2CDevInit(I2CDevPtr pI2CDev); |
| I2CDevPtr xf86I2CFindDev(I2CBusPtr, I2CSlaveAddr); |
| |
| /* See descriptions of these functions in xf86i2c.c */ |
| |
| Bool xf86I2CProbeAddress(I2CBusPtr pI2CBus, I2CSlaveAddr); |
| Bool xf86I2CWriteRead(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite, |
| I2CByte *ReadBuffer, int nRead); |
| #define xf86I2CRead(d, rb, nr) xf86I2CWriteRead(d, NULL, 0, rb, nr) |
| Bool xf86I2CReadStatus(I2CDevPtr d, I2CByte *pbyte); |
| Bool xf86I2CReadByte(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte); |
| Bool xf86I2CReadBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte, int n); |
| Bool xf86I2CReadWord(I2CDevPtr d, I2CByte subaddr, unsigned short *pword); |
| #define xf86I2CWrite(d, wb, nw) xf86I2CWriteRead(d, wb, nw, NULL, 0) |
| Bool xf86I2CWriteByte(I2CDevPtr d, I2CByte subaddr, I2CByte byte); |
| Bool xf86I2CWriteBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *WriteBuffer, int nWrite); |
| Bool xf86I2CWriteWord(I2CDevPtr d, I2CByte subaddr, unsigned short word); |
| Bool xf86I2CWriteVec(I2CDevPtr d, I2CByte *vec, int nValues); |
| |
| #endif /*_XF86I2C_H */ |