1 /*- 2 * Copyright (c) 2012 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Paul Fleischer <paul@xpg.dk> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 #include <sys/param.h> 30 #include <sys/disklabel.h> 31 32 #include <netinet/in.h> 33 34 #include <lib/libkern/libkern.h> 35 #include <lib/libsa/stand.h> 36 #include <lib/libsa/nfs.h> 37 #include <lib/libsa/tftp.h> 38 #include <lib/libsa/ext2fs.h> 39 #include <lib/libsa/dosfs.h> 40 #include <lib/libsa/ufs.h> 41 42 #include "dev_sdmmc.h" 43 #include <arch/evbarm/mini2440/mini2440_bootinfo.h> 44 45 /* Implemented in dev_net.c */ 46 int net_open(struct open_file *, ...); 47 int net_close(struct open_file *); 48 int net_strategy(void *, int, daddr_t, size_t, void *, size_t *); 49 50 /* Implemented in dev_sdmmc.c */ 51 int sdmmc_open(struct open_file *, ...); 52 int sdmmc_close(struct open_file *); 53 int sdmmc_strategy(void *, int, daddr_t, size_t, void *, size_t *); 54 int sdmmc_get_fstype(void*); 55 56 struct devsw devsw[] = { 57 { "dm9000", net_strategy, net_open, net_close, noioctl }, 58 { "s3c sdio", sdmmc_strategy, sdmmc_open, sdmmc_close, noioctl } 59 }; 60 61 struct fs_ops ops_nfs = FS_OPS(nfs); 62 struct fs_ops ops_tftp = FS_OPS(tftp); 63 struct fs_ops ops_ext2fs = FS_OPS(ext2fs); 64 struct fs_ops ops_dosfs = FS_OPS(dosfs); 65 struct fs_ops ops_bsdfs = FS_OPS(ufs); 66 struct fs_ops file_system[1]; 67 int nfsys = 1; 68 69 extern struct btinfo_bootpath bi_path; 70 extern struct btinfo_rootdevice bi_rdev; 71 72 static void parseunit(const char *name, int *unitp, int *partp, char **pathp); 73 74 int 75 devopen(struct open_file *of, const char *name, char **file) 76 { 77 int error; 78 extern char bootfile[]; 79 80 if (strncmp("net:", name, 4) == 0 || 81 strncmp("nfs:", name, 4) == 0 ) { 82 of->f_dev = &devsw[0]; 83 if ((error = net_open(of, name+4, "nfs")) != 0) 84 return error; 85 file_system[0] = ops_nfs; 86 *file = bootfile; 87 strncpy(bi_path.bootpath, bootfile, sizeof(bi_path.bootpath)); 88 89 return 0; 90 } else if (strncmp("tftp:", name, 5) == 0) { 91 of->f_dev = &devsw[0]; 92 if ((error = net_open(of, name+5, "tftp")) != 0) { 93 return error; 94 } 95 file_system[0] = ops_tftp; 96 *file = bootfile; 97 strncpy(bi_path.bootpath, bootfile, sizeof(bi_path.bootpath)); 98 99 return 0; 100 } else if (name[0] == 'l' && name[1] == 'd') { 101 int unit, part; 102 parseunit(&name[2], &unit, &part, file); 103 if (*file == NULL || strlen(*file) == 0) { 104 strcpy(*file, "netbsd"); 105 } 106 of->f_dev = &devsw[1]; 107 if ((error = sdmmc_open(of, unit, part)) != 0) 108 return error; 109 110 strncpy(bi_path.bootpath, *file, sizeof(bi_path.bootpath)); 111 112 snprintf(bi_rdev.devname, sizeof(bi_rdev.devname), "ld"); 113 bi_rdev.cookie = unit; 114 bi_rdev.partition = part; 115 switch(sdmmc_get_fstype(of->f_devdata)) { 116 case FS_EX2FS: 117 file_system[0] = ops_ext2fs; 118 break; 119 case FS_MSDOS: 120 file_system[0] = ops_dosfs; 121 break; 122 case FS_BSDFFS: 123 file_system[0] = ops_bsdfs; 124 break; 125 default: 126 return ENOENT; 127 } 128 129 return 0; 130 } 131 return ENOENT; 132 } 133 134 static void 135 parseunit(const char *name, int *unitp, int *partp, char **pathp) 136 { 137 const char *p = name; 138 int unit, part; 139 140 unit = part = -1; 141 while (*p != ':' && *p != '\0') { 142 if (unit == -1 && *p >= '0' && *p <= '9') 143 unit = *p - '0'; 144 if (part == -1 && *p >= 'a' && *p < 'a' + 16) 145 part = *p - 'a'; 146 p += 1; 147 } 148 *unitp = (unit == -1) ? 0 : unit; 149 *partp = (part == -1) ? 0 : part; 150 *pathp = (*p == ':') ? (char *)p + 1 : NULL; 151 } 152