/** * \addtogroup c64fs * @{ * *//** * \file * C64 direct disk I/O. * \author Adam Dunkels <adam@dunkels.com> * */ /* * Copyright (c) 2003, Adam Dunkels. * All rights reserved.  * * Redistribution and use in source and binary forms, with or without  * modification, are permitted provided that the following conditions  * are met:  * 1. Redistributions of source code must retain the above copyright  *    notice, this list of conditions and the following disclaimer.  * 2. Redistributions in binary form must reproduce the above *    copyright notice, this list of conditions and the following *    disclaimer in the documentation and/or other materials provided *    with the distribution.  * 3. The name of the author may not be used to endorse or promote *    products derived from this software without specific prior *    written permission.   * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.   * * This file is part of the Contiki desktop OS * * $Id: c64-dio.c,v 1.1 2007/05/23 23:11:28 oliverschmidt Exp $ * */#include "c64-dio.h"#include "c64-dio-asm.h"/*-----------------------------------------------------------------------------------*//** * Read a block of data (256 bytes) from the disk. * * \param track The track of the disk block to be read. * * \param sector The sector of the disk block to be read. * * \param ptr A pointer to a buffer than must be able to accomodate * 256 bytes of data. * * \return An error code or C64_DIO_OK if the data was successfully * read. *//*-----------------------------------------------------------------------------------*/unsigned charc64_dio_read_block(unsigned char track,		   unsigned char sector,		   unsigned char *ptr){  c64_dio_asm_track = track;  c64_dio_asm_sector = sector;  c64_dio_asm_ptr = ptr;  return c64_dio_asm_read_block();}/*-----------------------------------------------------------------------------------*//** * Write a block of data (256 bytes) to the disk. * * \param track The track of the disk block to be written. * * \param sector The sector of the disk block to be written. * * \param ptr A pointer to a buffer containing the 256 bytes of data * to be written. * * \return An error code or C64_DIO_OK if the data was successfully * written. *//*-----------------------------------------------------------------------------------*/unsigned charc64_dio_write_block(unsigned char track,		   unsigned char sector,		   unsigned char *ptr){  c64_dio_asm_track = track;  c64_dio_asm_sector = sector;  c64_dio_asm_ptr = ptr;  return c64_dio_asm_write_block();}/*-----------------------------------------------------------------------------------*//** * Initialize the direct disk I/O routines for a particular disk drive. * * This function must be called before any of the other direct disk * I/O functions can be used. * * \param drive The drive number of the disk drive for which the * direct disk I/O should be enabled. *//*-----------------------------------------------------------------------------------*/voidc64_dio_init(unsigned char drive){  c64_dio_asm_init(drive);}/*-----------------------------------------------------------------------------------*//** @} */