87a7fb7438
The patch removes all macros in the format
define xf86_sym ((type (*)(argument-list))LoaderSymbol("sym"))
creates a new macro in the format
define xf86_sym sym
and ensures "sym" is a "visible" symbol.
The patch doesn't add or remove features, and is source and binary
compatible with previous shared objects (with the difference that it
requires the dlloader).
These symbols are a special case, as, due to the fact that LoaderSymbol
was being used to reference them, they are not easily found by "automated"
tools that check for missing symbols. And now it also have the benefit
that the compiler/loader "knows what is going on".
107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/*
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* Copyright (C) 1998 Itai Nahshon, Michael Schimek
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*/
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#ifndef _XF86I2C_H
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#define _XF86I2C_H
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#include "regionstr.h"
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typedef unsigned char I2CByte;
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typedef unsigned short I2CSlaveAddr;
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typedef struct _I2CBusRec *I2CBusPtr;
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typedef struct _I2CDevRec *I2CDevPtr;
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/* I2C masters have to register themselves */
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typedef struct _I2CBusRec {
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char * BusName;
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int scrnIndex;
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void (*I2CUDelay) (I2CBusPtr b, int usec);
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void (*I2CPutBits)(I2CBusPtr b, int scl, int sda);
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void (*I2CGetBits)(I2CBusPtr b, int *scl, int *sda);
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/* Look at the generic routines to see how these functions should behave. */
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Bool (*I2CStart) (I2CBusPtr b, int timeout);
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Bool (*I2CAddress)(I2CDevPtr d, I2CSlaveAddr);
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void (*I2CStop) (I2CDevPtr d);
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Bool (*I2CPutByte)(I2CDevPtr d, I2CByte data);
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Bool (*I2CGetByte)(I2CDevPtr d, I2CByte *data, Bool);
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DevUnion DriverPrivate;
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int HoldTime; /* 1 / bus clock frequency, 5 or 2 usec */
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int BitTimeout; /* usec */
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int ByteTimeout; /* usec */
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int AcknTimeout; /* usec */
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int StartTimeout; /* usec */
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int RiseFallTime; /* usec */
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I2CDevPtr FirstDev;
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I2CBusPtr NextBus;
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Bool (*I2CWriteRead)(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite,
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I2CByte *ReadBuffer, int nRead);
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} I2CBusRec;
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#define CreateI2CBusRec xf86CreateI2CBusRec
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extern I2CBusPtr xf86CreateI2CBusRec(void);
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#define DestroyI2CBusRec xf86DestroyI2CBusRec
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extern void xf86DestroyI2CBusRec(I2CBusPtr pI2CBus, Bool unalloc, Bool devs_too);
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#define I2CBusInit xf86I2CBusInit
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extern Bool xf86I2CBusInit(I2CBusPtr pI2CBus);
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I2CBusPtr xf86I2CFindBus(int scrnIndex, char *name);
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int xf86I2CGetScreenBuses(int scrnIndex, I2CBusPtr **pppI2CBus);
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/* I2C slave devices */
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typedef struct _I2CDevRec {
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char * DevName;
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int BitTimeout; /* usec */
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int ByteTimeout; /* usec */
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int AcknTimeout; /* usec */
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int StartTimeout; /* usec */
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I2CSlaveAddr SlaveAddr;
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I2CBusPtr pI2CBus;
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I2CDevPtr NextDev;
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DevUnion DriverPrivate;
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} I2CDevRec;
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#define CreateI2CDevRec xf86CreateI2CDevRec
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extern I2CDevPtr xf86CreateI2CDevRec(void);
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void xf86DestroyI2CDevRec(I2CDevPtr pI2CDev, Bool unalloc);
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#define I2CDevInit xf86I2CDevInit
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extern Bool xf86I2CDevInit(I2CDevPtr pI2CDev);
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I2CDevPtr xf86I2CFindDev(I2CBusPtr, I2CSlaveAddr);
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/* See descriptions of these functions in xf86i2c.c */
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#define I2CProbeAddress xf86I2CProbeAddress
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extern Bool xf86I2CProbeAddress(I2CBusPtr pI2CBus, I2CSlaveAddr);
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#define I2C_WriteRead xf86I2CWriteRead
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extern Bool xf86I2CWriteRead(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite,
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I2CByte *ReadBuffer, int nRead);
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#define xf86I2CRead(d, rb, nr) xf86I2CWriteRead(d, NULL, 0, rb, nr)
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Bool xf86I2CReadStatus(I2CDevPtr d, I2CByte *pbyte);
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Bool xf86I2CReadByte(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte);
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Bool xf86I2CReadBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte, int n);
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Bool xf86I2CReadWord(I2CDevPtr d, I2CByte subaddr, unsigned short *pword);
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#define xf86I2CWrite(d, wb, nw) xf86I2CWriteRead(d, wb, nw, NULL, 0)
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Bool xf86I2CWriteByte(I2CDevPtr d, I2CByte subaddr, I2CByte byte);
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Bool xf86I2CWriteBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *WriteBuffer, int nWrite);
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Bool xf86I2CWriteWord(I2CDevPtr d, I2CByte subaddr, unsigned short word);
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Bool xf86I2CWriteVec(I2CDevPtr d, I2CByte *vec, int nValues);
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#endif /*_XF86I2C_H */
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