1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2013 Adrian Chadd <adrian@freebsd.org> 5 * Copyright (c) 2019 Vladimir Kondratyev <wulf@FreeBSD.org> 6 * Copyright (c) 2023 Future Crew LLC. 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/types.h> 31 #include <sys/endian.h> 32 #include <sys/stat.h> 33 34 #include <err.h> 35 #include <errno.h> 36 #include <fcntl.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 42 #include "iwmbt_fw.h" 43 #include "iwmbt_dbg.h" 44 45 int 46 iwmbt_fw_read(struct iwmbt_firmware *fw, const char *fwname) 47 { 48 int fd; 49 struct stat sb; 50 unsigned char *buf; 51 ssize_t r; 52 53 fd = open(fwname, O_RDONLY); 54 if (fd < 0) { 55 warn("%s: open: %s", __func__, fwname); 56 return (0); 57 } 58 59 if (fstat(fd, &sb) != 0) { 60 warn("%s: stat: %s", __func__, fwname); 61 close(fd); 62 return (0); 63 } 64 65 buf = calloc(1, sb.st_size); 66 if (buf == NULL) { 67 warn("%s: calloc", __func__); 68 close(fd); 69 return (0); 70 } 71 72 /* XXX handle partial reads */ 73 r = read(fd, buf, sb.st_size); 74 if (r < 0) { 75 warn("%s: read", __func__); 76 free(buf); 77 close(fd); 78 return (0); 79 } 80 81 if (r != sb.st_size) { 82 iwmbt_err("read len %d != file size %d", 83 (int) r, 84 (int) sb.st_size); 85 free(buf); 86 close(fd); 87 return (0); 88 } 89 90 /* We have everything, so! */ 91 92 memset(fw, 0, sizeof(*fw)); 93 94 fw->fwname = strdup(fwname); 95 fw->len = sb.st_size; 96 fw->buf = buf; 97 98 close(fd); 99 return (1); 100 } 101 102 void 103 iwmbt_fw_free(struct iwmbt_firmware *fw) 104 { 105 if (fw->fwname) 106 free(fw->fwname); 107 if (fw->buf) 108 free(fw->buf); 109 memset(fw, 0, sizeof(*fw)); 110 } 111 112 char * 113 iwmbt_get_fwname(struct iwmbt_version *ver, struct iwmbt_boot_params *params, 114 const char *prefix, const char *suffix) 115 { 116 struct stat sb; 117 char *fwname; 118 119 switch (ver->hw_variant) { 120 case 0x07: /* 7260 */ 121 case 0x08: /* 7265 */ 122 asprintf(&fwname, "%s/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.%s", 123 prefix, 124 le16toh(ver->hw_platform), 125 le16toh(ver->hw_variant), 126 le16toh(ver->hw_revision), 127 le16toh(ver->fw_variant), 128 le16toh(ver->fw_revision), 129 le16toh(ver->fw_build_num), 130 le16toh(ver->fw_build_ww), 131 le16toh(ver->fw_build_yy), 132 suffix); 133 /* 134 * Fallback to the default firmware patch if 135 * the correct firmware patch file is not found. 136 */ 137 if (stat(fwname, &sb) != 0 && errno == ENOENT) { 138 free(fwname); 139 asprintf(&fwname, "%s/ibt-hw-%x.%x.%s", 140 prefix, 141 le16toh(ver->hw_platform), 142 le16toh(ver->hw_variant), 143 suffix); 144 } 145 break; 146 147 case 0x0b: /* 8260 */ 148 case 0x0c: /* 8265 */ 149 asprintf(&fwname, "%s/ibt-%u-%u.%s", 150 prefix, 151 le16toh(ver->hw_variant), 152 le16toh(params->dev_revid), 153 suffix); 154 break; 155 156 case 0x11: /* 9560 */ 157 case 0x12: /* 9260 */ 158 case 0x13: 159 case 0x14: /* 22161 */ 160 asprintf(&fwname, "%s/ibt-%u-%u-%u.%s", 161 prefix, 162 le16toh(ver->hw_variant), 163 le16toh(ver->hw_revision), 164 le16toh(ver->fw_revision), 165 suffix); 166 break; 167 168 default: 169 fwname = NULL; 170 } 171 172 return (fwname); 173 } 174 175 char * 176 iwmbt_get_fwname_tlv(struct iwmbt_version_tlv *ver, const char *prefix, 177 const char *suffix) 178 { 179 char *fwname; 180 181 #define IWMBT_PACK_CNVX_TOP(cnvx_top) ((uint16_t)( \ 182 ((cnvx_top) & 0x0f000000) >> 16 | \ 183 ((cnvx_top) & 0x0000000f) << 12 | \ 184 ((cnvx_top) & 0x00000ff0) >> 4)) 185 186 asprintf(&fwname, "%s/ibt-%04x-%04x.%s", 187 prefix, 188 IWMBT_PACK_CNVX_TOP(ver->cnvi_top), 189 IWMBT_PACK_CNVX_TOP(ver->cnvr_top), 190 suffix); 191 192 return (fwname); 193 } 194