1/* $NetBSD: devopen.c,v 1.8 2005/12/11 12:18:24 christos Exp $ */ 2 3/*- 4 * Copyright (C) 1999 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <lib/libkern/libkern.h> 30#include <lib/libsa/stand.h> 31#include <lib/libsa/ufs.h> 32#include <lib/libsa/ustarfs.h> 33 34#include <machine/romcall.h> 35 36#ifdef BOOT_DEBUG 37# define DPRINTF printf 38#else 39# define DPRINTF while (0) printf 40#endif 41 42int dkopen(struct open_file *, ...); 43int dkclose(struct open_file *); 44int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *); 45 46struct devsw devsw[] = { 47 { "dk", dkstrategy, dkopen, dkclose, noioctl } 48}; 49int ndevs = __arraycount(devsw); 50 51struct fs_ops file_system[] = { 52 FS_OPS(ufs), 53 FS_OPS(ustarfs), 54}; 55int nfsys = __arraycount(file_system); 56 57struct romdev { 58 int fd; 59} romdev; 60 61int 62devopen(struct open_file *f, const char *fname, char **file) 63{ 64 int fd; 65 char devname[32]; 66 char *cp; 67 68 DPRINTF("devopen: %s\n", fname); 69 70 strcpy(devname, fname); 71 cp = strchr(devname, ')') + 1; 72 *cp = 0; 73 fd = rom_open(devname, 0); 74 75 DPRINTF("devname = %s, fd = %d\n", devname, fd); 76 if (fd == -1) 77 return -1; 78 79 romdev.fd = fd; 80 81 f->f_dev = devsw; 82 f->f_devdata = &romdev; 83 *file = strchr(fname, ')') + 1; 84 85 return 0; 86} 87 88int 89dkopen(struct open_file *f, ...) 90{ 91 92 DPRINTF("dkopen\n"); 93 return 0; 94} 95 96int 97dkclose(struct open_file *f) 98{ 99 struct romdev *dev = f->f_devdata; 100 101 DPRINTF("dkclose\n"); 102 rom_close(dev->fd); 103 return 0; 104} 105 106int 107dkstrategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf, 108 size_t *rsize) 109{ 110 struct romdev *dev = devdata; 111 112 /* XXX should use partition offset */ 113 114 rom_lseek(dev->fd, blk * 512, 0); 115 rom_read(dev->fd, buf, size); 116 *rsize = size; 117 return 0; 118} 119