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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 | /* * Copyright (C) 1997 Claus-Justus Heine This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-proc.c,v $ * $Revision: 1.11 $ * $Date: 1997/10/24 14:47:37 $ * * This file contains the procfs interface for the * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux. */ #include <linux/config.h> #if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS) /* adding proc entries from inside a module is REALLY complicated * for pre-2.1.28 kernels. I don't want to care about it. */ #include <linux/proc_fs.h> #include <linux/ftape.h> #if LINUX_VERSION_CODE <= KERNEL_VER(1,2,13) /* bail out */ #error \ Please disable CONFIG_FT_PROC_FS in "MCONFIG" or upgrade to a newer kernel! #endif #if LINUX_VERSION_CODE >= KERNEL_VER(2,1,16) #include <linux/init.h> #else #define __initdata #define __initfunc(__arg) __arg #endif #include <linux/qic117.h> #include "../lowlevel/ftape-io.h" #include "../lowlevel/ftape-ctl.h" #include "../lowlevel/ftape-proc.h" #include "../lowlevel/ftape-tracing.h" static int ftape_read_proc(char *page, char **start, off_t off, int count, int *eof, void *data); #if LINUX_VERSION_CODE < KERNEL_VER(2,1,28) #include <asm/segment.h> /* for memcpy_tofs() */ #if LINUX_VERSION_CODE >= KERNEL_VER(2,1,0) static long ftape_proc_read(struct inode* inode, struct file* file, char* buf, unsigned long count); #else static int ftape_proc_read(struct inode* inode, struct file* file, char* buf, int count); #endif #define FT_PROC_REGISTER(parent, child) proc_register_dynamic(parent, child) /* * Structures for interfacing with the /proc filesystem. * Router creates its own directory /proc/net/router with the folowing * entries: * config device configuration * status global device statistics * <device> entry for each WAN device */ /* * Generic /proc/net/ftape/<file> file and inode operations */ static struct file_operations ftape_proc_fops = { NULL, /* lseek */ ftape_proc_read, /* read */ NULL, /* write */ NULL, /* readdir */ NULL, /* select */ NULL, /* ioctl */ NULL, /* mmap */ NULL, /* no special open code */ NULL, /* flush */ NULL, /* no special release code */ NULL, /* can't fsync */ }; static struct inode_operations ftape_proc_inode_operations = { &ftape_proc_fops, NULL, /* create */ NULL, /* lookup */ NULL, /* link */ NULL, /* unlink */ NULL, /* symlink */ NULL, /* mkdir */ NULL, /* rmdir */ NULL, /* mknod */ NULL, /* rename */ NULL, /* readlink */ NULL, /* follow_link */ NULL, /* get_block */ NULL, /* readpage */ NULL, /* writepage */ NULL, /* flushpage */ NULL, /* truncate */ NULL, /* permission */ NULL, /* smap */ NULL, /* revalidate */ }; /* * Proc filesystem directory entries. */ static int ftape_get_info(char *page, char **start, off_t off, int count, int dummy) { int dummy_eof; return ftape_read_proc(page, start, off, count, &dummy_eof, NULL); } static struct proc_dir_entry proc_ftape = { 0, /* low_ino */ sizeof("ftape")-1, /* namelen */ "ftape", /* name */ S_IFREG | S_IRUGO, /* mode */ 1, /* nlink */ 0, /* uid */ 0, /* gid */ 0, /* size */ &ftape_proc_inode_operations, /* ops */ ftape_get_info, /* get_info */ NULL, /* fill_inode */ NULL, /* next */ NULL, /* parent */ NULL, /* subdir */ NULL /* data */ }; /* Read ftape proc directory entry. */ #define PROC_BLOCK_SIZE PAGE_SIZE #if LINUX_VERSION_CODE >= KERNEL_VER(2,1,0) static long ftape_proc_read(struct inode * inode, struct file * file, char * buf, unsigned long nbytes) #else static int ftape_proc_read(struct inode * inode, struct file * file, char * buf, int nbytes) #endif { char *page; int retval=0; int eof=0; int n, count; char *start; struct proc_dir_entry * dp; if (nbytes < 0) return -EINVAL; dp = (struct proc_dir_entry *) inode->u.generic_ip; if (!(page = (char*) __get_free_page(GFP_KERNEL))) return -ENOMEM; while ((nbytes > 0) && !eof) { count = PROC_BLOCK_SIZE <= nbytes ? PROC_BLOCK_SIZE : nbytes; start = NULL; if (dp->get_info) { /* * Handle backwards compatibility with the old net * routines. * * XXX What gives with the file->f_flags & O_ACCMODE * test? Seems stupid to me.... */ n = dp->get_info(page, &start, file->f_pos, count, (file->f_flags & O_ACCMODE) == O_RDWR); if (n < count) eof = 1; } else break; if (!start) { /* * For proc files that are less than 4k */ start = page + file->f_pos; n -= file->f_pos; if (n <= 0) break; if (n > count) n = count; } if (n == 0) break; /* End of file */ if (n < 0) { if (retval == 0) retval = n; break; } #if LINUX_VERSION_CODE > KERNEL_VER(2,1,3) copy_to_user(buf, start, n); #else memcpy_tofs(buf, start, n); #endif file->f_pos += n; /* Move down the file */ nbytes -= n; buf += n; retval += n; } free_page((unsigned long) page); return retval; } #else /* LINUX_VERSION_CODE < KERNEL_VER(2,1,28) */ #define FT_PROC_REGISTER(parent, child) proc_register(parent, child) /* * Proc filesystem directory entries. */ static struct proc_dir_entry proc_ftape = { 0, /* low_ino */ sizeof("ftape")-1, /* namelen */ "ftape", /* name */ S_IFREG | S_IRUGO, /* mode */ 1, /* nlink */ 0, /* uid */ 0, /* gid */ 0, /* size */ NULL, /* ops */ NULL, /* get_info */ NULL, /* fill_inode */ NULL, /* next */ NULL, /* parent */ NULL, /* subdir */ NULL, /* data */ ftape_read_proc, /* read_proc */ NULL /* write_proc */ }; #endif static size_t get_driver_info(char *buf) { const char *debug_level[] = { "bugs" , "errors", "warnings", "informational", "noisy", "program flow", "fdc and dma", "data flow", "anything" }; return sprintf(buf, "version : %s\n" "used data rate: %d kbit/sec\n" "dma memory : %d kb\n" "debug messages: %s\n", FTAPE_VERSION, ft_data_rate, FT_BUFF_SIZE * ft_nr_buffers >> 10, debug_level[TRACE_LEVEL]); } static size_t get_tapedrive_info(char *buf) { return sprintf(buf, "vendor id : 0x%04x\n" "drive name: %s\n" "wind speed: %d ips\n" "wakeup : %s\n" "max. rate : %d kbit/sec\n", ft_drive_type.vendor_id, ft_drive_type.name, ft_drive_type.speed, ((ft_drive_type.wake_up == no_wake_up) ? "No wakeup needed" : ((ft_drive_type.wake_up == wake_up_colorado) ? "Colorado" : ((ft_drive_type.wake_up == wake_up_mountain) ? "Mountain" : ((ft_drive_type.wake_up == wake_up_insight) ? "Motor on" : "Unknown")))), ft_drive_max_rate); } static size_t get_cartridge_info(char *buf) { if (ftape_init_drive_needed) { return sprintf(buf, "uninitialized\n"); } if (ft_no_tape) { return sprintf(buf, "no cartridge inserted\n"); } return sprintf(buf, "segments : %5d\n" "tracks : %5d\n" "length : %5dft\n" "formatted : %3s\n" "writable : %3s\n" "QIC spec. : QIC-%s\n" "fmt-code : %1d\n", ft_segments_per_track, ft_tracks_per_tape, ftape_tape_len, (ft_formatted == 1) ? "yes" : "no", (ft_write_protected == 1) ? "no" : "yes", ((ft_qic_std == QIC_TAPE_QIC40) ? "40" : ((ft_qic_std == QIC_TAPE_QIC80) ? "80" : ((ft_qic_std == QIC_TAPE_QIC3010) ? "3010" : ((ft_qic_std == QIC_TAPE_QIC3020) ? "3020" : "???")))), ft_format_code); } static size_t get_controller_info(char *buf) { const char *fdc_name[] = { "no fdc", "i8272", "i82077", "i82077AA", "Colorado FC-10 or FC-20", "i82078", "i82078_1" }; return sprintf(buf, "FDC type : %s\n" "FDC base : 0x%03x\n" "FDC irq : %d\n" "FDC dma : %d\n" "FDC thr. : %d\n" "max. rate : %d kbit/sec\n", ft_mach2 ? "Mountain MACH-2" : fdc_name[fdc.type], fdc.sra, fdc.irq, fdc.dma, ft_fdc_threshold, ft_fdc_max_rate); } static size_t get_history_info(char *buf) { size_t len; len = sprintf(buf, "\nFDC isr statistics\n" " id_am_errors : %3d\n" " id_crc_errors : %3d\n" " data_am_errors : %3d\n" " data_crc_errors : %3d\n" " overrun_errors : %3d\n" " no_data_errors : %3d\n" " retries : %3d\n", ft_history.id_am_errors, ft_history.id_crc_errors, ft_history.data_am_errors, ft_history.data_crc_errors, ft_history.overrun_errors, ft_history.no_data_errors, ft_history.retries); len += sprintf(buf + len, "\nECC statistics\n" " crc_errors : %3d\n" " crc_failures : %3d\n" " ecc_failures : %3d\n" " sectors corrected: %3d\n", ft_history.crc_errors, ft_history.crc_failures, ft_history.ecc_failures, ft_history.corrected); len += sprintf(buf + len, "\ntape quality statistics\n" " media defects : %3d\n", ft_history.defects); len += sprintf(buf + len, "\ntape motion statistics\n" " repositions : %3d\n", ft_history.rewinds); return len; } int ftape_read_proc(char *page, char **start, off_t off, int count, int *eof, void *data) { char *ptr = page; size_t len; ptr += sprintf(ptr, "Kernel Driver\n\n"); ptr += get_driver_info(ptr); ptr += sprintf(ptr, "\nTape Drive\n\n"); ptr += get_tapedrive_info(ptr); ptr += sprintf(ptr, "\nFDC Controller\n\n"); ptr += get_controller_info(ptr); ptr += sprintf(ptr, "\nTape Cartridge\n\n"); ptr += get_cartridge_info(ptr); ptr += sprintf(ptr, "\nHistory Record\n\n"); ptr += get_history_info(ptr); len = strlen(page); *start = 0; if (off+count >= len) { *eof = 1; } else { *eof = 0; } return len; } int __init ftape_proc_init(void) { return FT_PROC_REGISTER(&proc_root, &proc_ftape); } #ifdef MODULE void ftape_proc_destroy(void) { proc_unregister(&proc_root, proc_ftape.low_ino); } #endif #endif /* defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS) */ |