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[/] [ao486/] [trunk/] [syn/] [soc/] [firmware/] [exe_bsp/] [HAL/] [inc/] [sys/] [alt_dev.h] - Rev 7
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#ifndef __ALT_DEV_H__ #define __ALT_DEV_H__ /****************************************************************************** * * * License Agreement * * * * Copyright (c) 2004 Altera Corporation, San Jose, California, USA. * * All rights reserved. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the "Software"), * * to deal in the Software without restriction, including without limitation * * the rights to use, copy, modify, merge, publish, distribute, sublicense, * * and/or sell copies of the Software, and to permit persons to whom the * * Software is furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included in * * all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * * DEALINGS IN THE SOFTWARE. * * * * This agreement shall be governed in all respects by the laws of the State * * of California and by the laws of the United States of America. * * * * Altera does not recommend, suggest or require that this reference design * * file be used in conjunction or combination with any other product. * ******************************************************************************/ /****************************************************************************** * * * THIS IS A LIBRARY READ-ONLY SOURCE FILE. DO NOT EDIT. * * * ******************************************************************************/ #include "system.h" #include "sys/alt_llist.h" #include "priv/alt_dev_llist.h" #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* * The value ALT_IRQ_NOT_CONNECTED is used to represent an unconnected * interrupt line. It cannot evaluate to a valid interrupt number. */ #define ALT_IRQ_NOT_CONNECTED (-1) typedef struct alt_dev_s alt_dev; struct stat; /* * The file descriptor structure definition. */ typedef struct alt_fd_s { alt_dev* dev; alt_u8* priv; int fd_flags; } alt_fd; /* * The device structure definition. */ struct alt_dev_s { alt_llist llist; /* for internal use */ const char* name; int (*open) (alt_fd* fd, const char* name, int flags, int mode); int (*close) (alt_fd* fd); int (*read) (alt_fd* fd, char* ptr, int len); int (*write) (alt_fd* fd, const char* ptr, int len); int (*lseek) (alt_fd* fd, int ptr, int dir); int (*fstat) (alt_fd* fd, struct stat* buf); int (*ioctl) (alt_fd* fd, int req, void* arg); }; /* * Functions used to register device for access through the C standard * library. * * The only difference between alt_dev_reg() and alt_fs_reg() is the * interpretation that open() places on the device name. In the case of * alt_dev_reg the device is assumed to be a particular character device, * and so there must be an exact match in the name for open to succeed. * In the case of alt_fs_reg() the name of the device is treated as the * mount point for a directory, and so any call to open() where the name * is the root of the device filename will succeed. */ extern int alt_fs_reg (alt_dev* dev); static ALT_INLINE int alt_dev_reg (alt_dev* dev) { extern alt_llist alt_dev_list; return alt_dev_llist_insert ((alt_dev_llist*) dev, &alt_dev_list); } #ifdef __cplusplus } #endif #endif /* __ALT_DEV_H__ */
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