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