| #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. * |
| * * |
| * * |
| * 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__ */ |