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/*****************************************************************************/
/* */
/* joy-kernel.h */
/* */
/* Internally used joystick functions */
/* */
/* */
/* */
/* (C) 2002-2006, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef _JOY_KERNEL_H
#define _JOY_KERNEL_H
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* A structure that describes the header of a joystick driver loaded into
** memory.
*/
typedef struct {
/* Driver header */
char id[3]; /* Contains 0x6a, 0x6f, 0x79 ("joy") */
unsigned char version; /* Interface version */
void* libreference; /* Library reference */
/* Jump vectors. Note that these are not C callable */
void* install; /* INSTALL routine */
void* uninstall; /* UNINSTALL routine */
void* count; /* COUNT routine */
void* read; /* READ routine */
} joy_drv_header;
/* JOY kernel variables */
extern joy_drv_header* joy_drv; /* Pointer to driver */
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void joy_clear_ptr (void);
/* Clear the joy_drv pointer */
/* End of joy-kernel.h */
#endif
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