95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/* *****************************************************************
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* (C) Copyright 2007 Benjamin Krill <ben@codiert.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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* *****************************************************************/
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#ifndef FPGAFS_H
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#define FPGAFS_H
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#include <linux/kref.h>
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#include <linux/mutex.h>
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#include <linux/spinlock.h>
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#include <linux/fs.h>
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/* magic number the file system */
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enum {
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FPGAFS_MAGIC = 0x4255AA42,
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};
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struct fpga_context {
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char *load_buf;
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int lldrv;
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int bla;
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};
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struct fpgafs_inode_info {
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struct fpga_context *i_ctx;
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struct inode vfs_inode;
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};
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extern struct tree_descr fpgafs_dir_contents[];
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#define FPGAFS_I(inode) \
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container_of(inode, struct fpgafs_inode_info, vfs_inode)
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/* command definitions */
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#define BLA 0
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/* low level driver */
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struct fpgafs_lldrv {
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char name[5];
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int (*init) (void);
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int (*exit) (void);
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int (*send) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*recv) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*cmd) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*stat) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*read_load) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*write_load) (struct fpga_context *ctx, const char __user *buf, int len);
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};
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int fpgafs_register_lldrv(struct fpgafs_lldrv *drv);
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int fpgafs_unregister_lldrv(struct fpgafs_lldrv *drv);
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ssize_t fpgafs_send_data(struct file *file, const char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_recv_data(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_write_load(struct file *file, const char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_read_load(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_write_lldrv(struct file *file, const char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_read_lldrv(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_read_stat(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_write_cmd(struct file *file, const char __user *buf,
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size_t len, loff_t *pos);
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struct fpga_context* alloc_fpga_context(void);
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void free_fpga_context(struct fpga_context *ctx);
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#endif /* FPGAFS_H */
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