tslib.h

00001 #ifndef _TSLIB_H_
00002 #define _TSLIB_H_
00003 /*
00004  *  tslib/src/tslib.h
00005  *
00006  *  Copyright (C) 2001 Russell King.
00007  *
00008  * This file is placed under the LGPL.
00009  *
00010  * $Id: tslib.h,v 1.4 2005/02/26 01:47:23 kergoth Exp $
00011  *
00012  * Touch screen library interface definitions.
00013  */
00014 #ifdef __cplusplus
00015 extern "C" {
00016 #endif /* __cplusplus */
00017 #if 0
00018 #include <stdarg.h>
00019 //#include <sys/time.h>
00020 
00021 #ifdef WIN32
00022 #define TSIMPORT __declspec(dllimport)
00023 #define TSEXPORT __declspec(dllexport)
00024 #define TSLOCAL
00025 #else
00026 #define TSIMPORT
00027 #ifdef GCC_HASCLASSVISIBILITY
00028 #define TSEXPORT __attribute__ ((visibility("default")))
00029 #define TSLOCAL __attribute__ ((visibility("hidden")))
00030 #else
00031 #define TSEXPORT
00032 #define TSLOCAL
00033 #endif
00034 #endif
00035 
00036 #ifdef TSLIB_INTERNAL
00037 #define TSAPI TSEXPORT
00038 #else
00039 #define TSAPI TSIMPORT
00040 #endif // TSLIB_INTERNAL
00041 
00042 struct tsdev;
00043 
00044 struct ts_sample
00045 {
00046     int     x;
00047     int     y;
00048     unsigned int    pressure;
00049 //  struct timeval  tv;
00050 };
00051 
00052 /*
00053  * Close the touchscreen device, free all resources.
00054  */
00055 TSAPI int ts_close(struct tsdev *);
00056 
00057 /*
00058  * Configure the touchscreen device.
00059  */
00060 TSAPI int ts_config(struct tsdev *);
00061 
00062 /*
00063  * Change this hook to point to your custom error handling function.
00064  */
00065 extern TSAPI int (*ts_error_fn)(const char *fmt, va_list ap);
00066 
00067 /*
00068  * Returns the file descriptor in use for the touchscreen device.
00069  */
00070 TSAPI int ts_fd(struct tsdev *);
00071 
00072 /*
00073  * Load a filter/scaling module
00074  */
00075 TSAPI int ts_load_module(struct tsdev *, const char *mod, const char *params);
00076 
00077 /*
00078  * Open the touchscreen device.
00079  */
00080 TSAPI struct tsdev *ts_open(const char *dev_name, int nonblock);
00081 
00082 /*
00083  * Return a scaled touchscreen sample.
00084  */
00085 TSAPI int ts_read(struct tsdev *, struct ts_sample *, int);
00086 
00087 /*
00088  * Returns a raw, unscaled sample from the touchscreen.
00089  */
00090 TSAPI int ts_read_raw(struct tsdev *, struct ts_sample *, int);
00091 
00092 int ts_calibrate(int xsize, int ysize);
00093 
00094 int ts_phy2log(int *sumx, int *sumy);
00095 #endif
00096 #ifdef __cplusplus
00097 }
00098 #endif /* __cplusplus */
00099 #endif /* _TSLIB_H_ */