miscutils/hdparm.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * hdparm implementation for busybox
   4  *
   5  *
   6  * Copyright (C) [2003] by [Matteo Croce] <3297627799@wind.it>
   7  *
   8  * Hacked by Tito <farmatito@tiscali.it> for size optimization.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  23  * 02111-1307 USA
  24  *
  25  *
  26  * This program is based on the source code of hdparm: see below...
  27  * hdparm.c - Command line interface to get/set hard disk parameters
  28  *          - by Mark Lord (C) 1994-2002 -- freely distributable
  29  */
  30
  31 #include <unistd.h>
  32 #include <string.h>
  33 #include <stdlib.h>
  34 #include <fcntl.h>
  35 #include <errno.h>
  36 #include <ctype.h>
  37 #include <endian.h>
  38 #include <sys/ioctl.h>
  39 #include <sys/shm.h>
  40 #include <sys/sysmacros.h>
  41 #include <sys/time.h>
  42 #include <sys/times.h>
  43 #include <sys/mount.h>
  44 #include "busybox.h"
  45 #include <linux/types.h>
  46 #include <linux/hdreg.h>
  47 #include <linux/major.h>
  48 #include <asm/byteorder.h>
  49
  50
  51 #if (__BYTE_ORDER == __BIG_ENDIAN) && !defined(__USE_XOPEN)
  52 #define __USE_XOPEN
  53 #endif
  54
  55 /* device types */
  56 /* ------------ */
  57 #define NO_DEV                  0xffff
  58 #define ATA_DEV                 0x0000
  59 #define ATAPI_DEV               0x0001
  60
  61 /* word definitions */
  62 /* ---------------- */
  63 #define GEN_CONFIG              0   /* general configuration */
  64 #define LCYLS                   1   /* number of logical cylinders */
  65 #define CONFIG                  2   /* specific configuration */
  66 #define LHEADS                  3   /* number of logical heads */
  67 #define TRACK_BYTES             4   /* number of bytes/track (ATA-1) */
  68 #define SECT_BYTES              5   /* number of bytes/sector (ATA-1) */
  69 #define LSECTS                  6   /* number of logical sectors/track */
  70 #define START_SERIAL            10  /* ASCII serial number */
  71 #define LENGTH_SERIAL           10  /* 10 words (20 bytes or characters) */
  72 #define BUF_TYPE                20  /* buffer type (ATA-1) */
  73 #define BUFFER__SIZE            21  /* buffer size (ATA-1) */
  74 #define RW_LONG                 22  /* extra bytes in R/W LONG cmd ( < ATA-4)*/
  75 #define START_FW_REV            23  /* ASCII firmware revision */
  76 #define LENGTH_FW_REV            4  /*  4 words (8 bytes or characters) */
  77 #define START_MODEL             27  /* ASCII model number */
  78 #define LENGTH_MODEL            20  /* 20 words (40 bytes or characters) */
  79 #define SECTOR_XFER_MAX         47  /* r/w multiple: max sectors xfered */
  80 #define DWORD_IO                48  /* can do double-word IO (ATA-1 only) */
  81 #define CAPAB_0                 49  /* capabilities */
  82 #define CAPAB_1                 50
  83 #define PIO_MODE                51  /* max PIO mode supported (obsolete)*/
  84 #define DMA_MODE                52  /* max Singleword DMA mode supported (obs)*/
  85 #define WHATS_VALID             53  /* what fields are valid */
  86 #define LCYLS_CUR               54  /* current logical cylinders */
  87 #define LHEADS_CUR              55  /* current logical heads */
  88 #define LSECTS_CUR              56  /* current logical sectors/track */
  89 #define CAPACITY_LSB            57  /* current capacity in sectors */
  90 #define CAPACITY_MSB            58
  91 #define SECTOR_XFER_CUR         59  /* r/w multiple: current sectors xfered */
  92 #define LBA_SECTS_LSB           60  /* LBA: total number of user */
  93 #define LBA_SECTS_MSB           61  /*      addressable sectors */
  94 #define SINGLE_DMA              62  /* singleword DMA modes */
  95 #define MULTI_DMA               63  /* multiword DMA modes */
  96 #define ADV_PIO_MODES           64  /* advanced PIO modes supported */
  97                                     /* multiword DMA xfer cycle time: */
  98 #define DMA_TIME_MIN            65  /*   - minimum */
  99 #define DMA_TIME_NORM           66  /*   - manufacturer's recommended   */
 100                                     /* minimum PIO xfer cycle time: */
 101 #define PIO_NO_FLOW             67  /*   - without flow control */
 102 #define PIO_FLOW                68  /*   - with IORDY flow control */
 103 #define PKT_REL                 71  /* typical #ns from PKT cmd to bus rel */
 104 #define SVC_NBSY                72  /* typical #ns from SERVICE cmd to !BSY */
 105 #define CDR_MAJOR               73  /* CD ROM: major version number */
 106 #define CDR_MINOR               74  /* CD ROM: minor version number */
 107 #define QUEUE_DEPTH             75  /* queue depth */
 108 #define MAJOR                   80  /* major version number */
 109 #define MINOR                   81  /* minor version number */
 110 #define CMDS_SUPP_0             82  /* command/feature set(s) supported */
 111 #define CMDS_SUPP_1             83
 112 #define CMDS_SUPP_2             84
 113 #define CMDS_EN_0               85  /* command/feature set(s) enabled */
 114 #define CMDS_EN_1               86
 115 #define CMDS_EN_2               87
 116 #define ULTRA_DMA               88  /* ultra DMA modes */
 117                                     /* time to complete security erase */
 118 #define ERASE_TIME              89  /*   - ordinary */
 119 #define ENH_ERASE_TIME          90  /*   - enhanced */
 120 #define ADV_PWR                 91  /* current advanced power management level
 121                                        in low byte, 0x40 in high byte. */
 122 #define PSWD_CODE               92  /* master password revision code    */
 123 #define HWRST_RSLT              93  /* hardware reset result */
 124 #define ACOUSTIC                94  /* acoustic mgmt values ( >= ATA-6) */
 125 #define LBA_LSB                 100 /* LBA: maximum.  Currently only 48 */
 126 #define LBA_MID                 101 /*      bits are used, but addr 103 */
 127 #define LBA_48_MSB              102 /*      has been reserved for LBA in */
 128 #define LBA_64_MSB              103 /*      the future. */
 129 #define RM_STAT                 127 /* removable media status notification feature set support */
 130 #define SECU_STATUS             128 /* security status */
 131 #define CFA_PWR_MODE            160 /* CFA power mode 1 */
 132 #define START_MEDIA             176 /* media serial number */
 133 #define LENGTH_MEDIA            20  /* 20 words (40 bytes or characters)*/
 134 #define START_MANUF             196 /* media manufacturer I.D. */
 135 #define LENGTH_MANUF            10  /* 10 words (20 bytes or characters) */
 136 #define INTEGRITY               255 /* integrity word */
 137
 138 /* bit definitions within the words */
 139 /* -------------------------------- */
 140
 141 /* many words are considered valid if bit 15 is 0 and bit 14 is 1 */
 142 #define VALID                   0xc000
 143 #define VALID_VAL               0x4000
 144 /* many words are considered invalid if they are either all-0 or all-1 */
 145 #define NOVAL_0                 0x0000
 146 #define NOVAL_1                 0xffff
 147
 148 /* word 0: gen_config */
 149 #define NOT_ATA                 0x8000
 150 #define NOT_ATAPI               0x4000  /* (check only if bit 15 == 1) */
 151 #define MEDIA_REMOVABLE         0x0080
 152 #define DRIVE_NOT_REMOVABLE     0x0040  /* bit obsoleted in ATA 6 */
 153 #define INCOMPLETE              0x0004
 154 #define CFA_SUPPORT_VAL         0x848a  /* 848a=CFA feature set support */
 155 #define DRQ_RESPONSE_TIME       0x0060
 156 #define DRQ_3MS_VAL             0x0000
 157 #define DRQ_INTR_VAL            0x0020
 158 #define DRQ_50US_VAL            0x0040
 159 #define PKT_SIZE_SUPPORTED      0x0003
 160 #define PKT_SIZE_12_VAL         0x0000
 161 #define PKT_SIZE_16_VAL         0x0001
 162 #define EQPT_TYPE               0x1f00
 163 #define SHIFT_EQPT              8
 164
 165 #define CDROM 0x0005
 166
 167 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 168 static const char *pkt_str[] = {
 169         "Direct-access device",                 /* word 0, bits 12-8 = 00 */
 170         "Sequential-access device",             /* word 0, bits 12-8 = 01 */
 171         "Printer",                              /* word 0, bits 12-8 = 02 */
 172         "Processor",                            /* word 0, bits 12-8 = 03 */
 173         "Write-once device",                    /* word 0, bits 12-8 = 04 */
 174         "CD-ROM",                               /* word 0, bits 12-8 = 05 */
 175         "Scanner",                              /* word 0, bits 12-8 = 06 */
 176         "Optical memory",                       /* word 0, bits 12-8 = 07 */
 177         "Medium changer",                       /* word 0, bits 12-8 = 08 */
 178         "Communications device",                /* word 0, bits 12-8 = 09 */
 179         "ACS-IT8 device",                       /* word 0, bits 12-8 = 0a */
 180         "ACS-IT8 device",                       /* word 0, bits 12-8 = 0b */
 181         "Array controller",                     /* word 0, bits 12-8 = 0c */
 182         "Enclosure services",                   /* word 0, bits 12-8 = 0d */
 183         "Reduced block command device",         /* word 0, bits 12-8 = 0e */
 184         "Optical card reader/writer",           /* word 0, bits 12-8 = 0f */
 185         "",                                     /* word 0, bits 12-8 = 10 */
 186         "",                                     /* word 0, bits 12-8 = 11 */
 187         "",                                     /* word 0, bits 12-8 = 12 */
 188         "",                                     /* word 0, bits 12-8 = 13 */
 189         "",                                     /* word 0, bits 12-8 = 14 */
 190         "",                                     /* word 0, bits 12-8 = 15 */
 191         "",                                     /* word 0, bits 12-8 = 16 */
 192         "",                                     /* word 0, bits 12-8 = 17 */
 193         "",                                     /* word 0, bits 12-8 = 18 */
 194         "",                                     /* word 0, bits 12-8 = 19 */
 195         "",                                     /* word 0, bits 12-8 = 1a */
 196         "",                                     /* word 0, bits 12-8 = 1b */
 197         "",                                     /* word 0, bits 12-8 = 1c */
 198         "",                                     /* word 0, bits 12-8 = 1d */
 199         "",                                     /* word 0, bits 12-8 = 1e */
 200         "Unknown",                              /* word 0, bits 12-8 = 1f */
 201 };
 202 static const char *ata1_cfg_str[] = {                   /* word 0 in ATA-1 mode */
 203         "reserved",                             /* bit 0 */
 204         "hard sectored",                        /* bit 1 */
 205         "soft sectored",                        /* bit 2 */
 206         "not MFM encoded ",                     /* bit 3 */
 207         "head switch time > 15us",              /* bit 4 */
 208         "spindle motor control option",         /* bit 5 */
 209         "fixed drive",                          /* bit 6 */
 210         "removable drive",                      /* bit 7 */
 211         "disk xfer rate <= 5Mbs",               /* bit 8 */
 212         "disk xfer rate > 5Mbs, <= 10Mbs",      /* bit 9 */
 213         "disk xfer rate > 5Mbs",                /* bit 10 */
 214         "rotational speed tol.",                /* bit 11 */
 215         "data strobe offset option",            /* bit 12 */
 216         "track offset option",                  /* bit 13 */
 217         "format speed tolerance gap reqd",      /* bit 14 */
 218         "ATAPI"                                 /* bit 14 */
 219 };
 220 #endif
 221
 222 /* word 1: number of logical cylinders */
 223 #define LCYLS_MAX               0x3fff /* maximum allowable value */
 224
 225 /* word 2: specific configuration
 226  * (a) require SET FEATURES to spin-up
 227  * (b) require spin-up to fully reply to IDENTIFY DEVICE
 228  */
 229 #define STBY_NID_VAL            0x37c8  /*     (a) and     (b) */
 230 #define STBY_ID_VAL             0x738c  /*     (a) and not (b) */
 231 #define PWRD_NID_VAL            0x8c73  /* not (a) and     (b) */
 232 #define PWRD_ID_VAL             0xc837  /* not (a) and not (b) */
 233
 234 /* words 47 & 59: sector_xfer_max & sector_xfer_cur */
 235 #define SECTOR_XFER             0x00ff  /* sectors xfered on r/w multiple cmds*/
 236 #define MULTIPLE_SETTING_VALID  0x0100  /* 1=multiple sector setting is valid */
 237
 238 /* word 49: capabilities 0 */
 239 #define STD_STBY                0x2000  /* 1=standard values supported (ATA);
 240                                            0=vendor specific values */
 241 #define IORDY_SUP               0x0800  /* 1=support; 0=may be supported */
 242 #define IORDY_OFF               0x0400  /* 1=may be disabled */
 243 #define LBA_SUP                 0x0200  /* 1=Logical Block Address support */
 244 #define DMA_SUP                 0x0100  /* 1=Direct Memory Access support */
 245 #define DMA_IL_SUP              0x8000  /* 1=interleaved DMA support (ATAPI) */
 246 #define CMD_Q_SUP               0x4000  /* 1=command queuing support (ATAPI) */
 247 #define OVLP_SUP                0x2000  /* 1=overlap operation support (ATAPI) */
 248 #define SWRST_REQ               0x1000  /* 1=ATA SW reset required (ATAPI, obsolete */
 249
 250 /* word 50: capabilities 1 */
 251 #define MIN_STANDBY_TIMER       0x0001  /* 1=device specific standby timer value minimum */
 252
 253 /* words 51 & 52: PIO & DMA cycle times */
 254 #define MODE                    0xff00  /* the mode is in the MSBs */
 255
 256 /* word 53: whats_valid */
 257 #define OK_W88                  0x0004  /* the ultra_dma info is valid */
 258 #define OK_W64_70               0x0002  /* see above for word descriptions */
 259 #define OK_W54_58               0x0001  /* current cyl, head, sector, cap. info valid */
 260
 261 /*word 63,88: dma_mode, ultra_dma_mode*/
 262 #define MODE_MAX                7       /* bit definitions force udma <=7 (when
 263                                          * udma >=8 comes out it'll have to be
 264                                          * defined in a new dma_mode word!) */
 265
 266 /* word 64: PIO transfer modes */
 267 #define PIO_SUP                 0x00ff  /* only bits 0 & 1 are used so far,  */
 268 #define PIO_MODE_MAX            8       /* but all 8 bits are defined        */
 269
 270 /* word 75: queue_depth */
 271 #define DEPTH_BITS              0x001f  /* bits used for queue depth */
 272
 273 /* words 80-81: version numbers */
 274 /* NOVAL_0 or  NOVAL_1 means device does not report version */
 275
 276 /* word 81: minor version number */
 277 #define MINOR_MAX               0x1C
 278 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 279 static const char *minor_str[] = {                              /* word 81 value: */
 280         "device does not report version",               /* 0x0000       */
 281         "ATA-1 X3T9.2 781D prior to revision 4",        /* 0x0001       */
 282         "ATA-1 published, ANSI X3.221-1994",            /* 0x0002       */
 283         "ATA-1 X3T9.2 781D revision 4",                 /* 0x0003       */
 284         "ATA-2 published, ANSI X3.279-1996",            /* 0x0004       */
 285         "ATA-2 X3T10 948D prior to revision 2k",        /* 0x0005       */
 286         "ATA-3 X3T10 2008D revision 1",                 /* 0x0006       */
 287         "ATA-2 X3T10 948D revision 2k",                 /* 0x0007       */
 288         "ATA-3 X3T10 2008D revision 0",                 /* 0x0008       */
 289         "ATA-2 X3T10 948D revision 3",                  /* 0x0009       */
 290         "ATA-3 published, ANSI X3.298-199x",            /* 0x000a       */
 291         "ATA-3 X3T10 2008D revision 6",                 /* 0x000b       */
 292         "ATA-3 X3T13 2008D revision 7 and 7a",          /* 0x000c       */
 293         "ATA/ATAPI-4 X3T13 1153D revision 6",           /* 0x000d       */
 294         "ATA/ATAPI-4 T13 1153D revision 13",            /* 0x000e       */
 295         "ATA/ATAPI-4 X3T13 1153D revision 7",           /* 0x000f       */
 296         "ATA/ATAPI-4 T13 1153D revision 18",            /* 0x0010       */
 297         "ATA/ATAPI-4 T13 1153D revision 15",            /* 0x0011       */
 298         "ATA/ATAPI-4 published, ANSI NCITS 317-1998",   /* 0x0012       */
 299         "ATA/ATAPI-5 T13 1321D revision 3",
 300         "ATA/ATAPI-4 T13 1153D revision 14",            /* 0x0014       */
 301         "ATA/ATAPI-5 T13 1321D revision 1",             /* 0x0015       */
 302         "ATA/ATAPI-5 published, ANSI NCITS 340-2000",   /* 0x0016       */
 303         "ATA/ATAPI-4 T13 1153D revision 17",            /* 0x0017       */
 304         "ATA/ATAPI-6 T13 1410D revision 0",             /* 0x0018       */
 305         "ATA/ATAPI-6 T13 1410D revision 3a",            /* 0x0019       */
 306         "Reserved",                                     /* 0x001a       */
 307         "ATA/ATAPI-6 T13 1410D revision 2",             /* 0x001b       */
 308         "ATA/ATAPI-6 T13 1410D revision 1",             /* 0x001c       */
 309         "reserved"                                      /* 0x001d       */
 310         "reserved"                                      /* 0x001e       */
 311         "reserved"                                      /* 0x001f-0xfffe*/
 312 };
 313 #endif
 314 static const char actual_ver[] = {
 315                         /* word 81 value: */
 316         0,              /* 0x0000       WARNING:        */
 317         1,              /* 0x0001       WARNING:        */
 318         1,              /* 0x0002       WARNING:        */
 319         1,              /* 0x0003       WARNING:        */
 320         2,              /* 0x0004       WARNING:   This array           */
 321         2,              /* 0x0005       WARNING:   corresponds          */
 322         3,              /* 0x0006       WARNING:   *exactly*            */
 323         2,              /* 0x0007       WARNING:   to the ATA/          */
 324         3,              /* 0x0008       WARNING:   ATAPI version        */
 325         2,              /* 0x0009       WARNING:   listed in            */
 326         3,              /* 0x000a       WARNING:   the                  */
 327         3,              /* 0x000b       WARNING:   minor_str            */
 328         3,              /* 0x000c       WARNING:   array                */
 329         4,              /* 0x000d       WARNING:   above.               */
 330         4,              /* 0x000e       WARNING:                        */
 331         4,              /* 0x000f       WARNING:   if you change        */
 332         4,              /* 0x0010       WARNING:   that one,            */
 333         4,              /* 0x0011       WARNING:   change this one      */
 334         4,              /* 0x0012       WARNING:   too!!!               */
 335         5,              /* 0x0013       WARNING:        */
 336         4,              /* 0x0014       WARNING:        */
 337         5,              /* 0x0015       WARNING:        */
 338         5,              /* 0x0016       WARNING:        */
 339         4,              /* 0x0017       WARNING:        */
 340         6,              /* 0x0018       WARNING:        */
 341         6,              /* 0x0019       WARNING:        */
 342         0,              /* 0x001a       WARNING:        */
 343         6,              /* 0x001b       WARNING:        */
 344         6,              /* 0x001c       WARNING:        */
 345         0               /* 0x001d-0xfffe                */
 346 };
 347
 348 /* words 82-84: cmds/feats supported */
 349 #define CMDS_W82                0x77ff  /* word 82: defined command locations*/
 350 #define CMDS_W83                0x3fff  /* word 83: defined command locations*/
 351 #define CMDS_W84                0x002f  /* word 83: defined command locations*/
 352 #define SUPPORT_48_BIT          0x0400
 353 #define NUM_CMD_FEAT_STR        48
 354
 355 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 356 static const char *cmd_feat_str[] = {
 357         "",                                     /* word 82 bit 15: obsolete  */
 358         "NOP cmd",                              /* word 82 bit 14 */
 359         "READ BUFFER cmd",                      /* word 82 bit 13 */
 360         "WRITE BUFFER cmd",                     /* word 82 bit 12 */
 361         "",                                     /* word 82 bit 11: obsolete  */
 362         "Host Protected Area feature set",      /* word 82 bit 10 */
 363         "DEVICE RESET cmd",                     /* word 82 bit  9 */
 364         "SERVICE interrupt",                    /* word 82 bit  8 */
 365         "Release interrupt",                    /* word 82 bit  7 */
 366         "Look-ahead",                           /* word 82 bit  6 */
 367         "Write cache",                          /* word 82 bit  5 */
 368         "PACKET command feature set",           /* word 82 bit  4 */
 369         "Power Management feature set",         /* word 82 bit  3 */
 370         "Removable Media feature set",          /* word 82 bit  2 */
 371         "Security Mode feature set",            /* word 82 bit  1 */
 372         "SMART feature set",                    /* word 82 bit  0 */
 373                                                 /* --------------*/
 374         "",                                     /* word 83 bit 15: !valid bit */
 375         "",                                     /* word 83 bit 14:  valid bit */
 376         "FLUSH CACHE EXT command",              /* word 83 bit 13 */
 377         "Mandatory FLUSH CACHE command ",       /* word 83 bit 12 */
 378         "Device Configuration Overlay feature set ",
 379         "48-bit Address feature set ",          /* word 83 bit 10 */
 380         "",
 381         "SET MAX security extension",           /* word 83 bit  8 */
 382         "Address Offset Reserved Area Boot",    /* word 83 bit  7 */
 383         "SET FEATURES subcommand required to spinup after power up",
 384         "Power-Up In Standby feature set",      /* word 83 bit  5 */
 385         "Removable Media Status Notification feature set",
 386         "Adv. Power Management feature set",/* word 83 bit  3 */
 387         "CFA feature set",                      /* word 83 bit  2 */
 388         "READ/WRITE DMA QUEUED",                /* word 83 bit  1 */
 389         "DOWNLOAD MICROCODE cmd",               /* word 83 bit  0 */
 390                                                 /* --------------*/
 391         "",                                     /* word 84 bit 15: !valid bit */
 392         "",                                     /* word 84 bit 14:  valid bit */
 393         "",                                     /* word 84 bit 13:  reserved */
 394         "",                                     /* word 84 bit 12:  reserved */
 395         "",                                     /* word 84 bit 11:  reserved */
 396         "",                                     /* word 84 bit 10:  reserved */
 397         "",                                     /* word 84 bit  9:  reserved */
 398         "",                                     /* word 84 bit  8:  reserved */
 399         "",                                     /* word 84 bit  7:  reserved */
 400         "",                                     /* word 84 bit  6:  reserved */
 401         "General Purpose Logging feature set",  /* word 84 bit  5 */
 402         "",                                     /* word 84 bit  4:  reserved */
 403         "Media Card Pass Through Command feature set ",
 404         "Media serial number ",                 /* word 84 bit  2 */
 405         "SMART self-test ",                     /* word 84 bit  1 */
 406         "SMART error logging "                  /* word 84 bit  0 */
 407 };
 408 #endif
 409
 410
 411 /* words 85-87: cmds/feats enabled */
 412 /* use cmd_feat_str[] to display what commands and features have
 413  * been enabled with words 85-87
 414  */
 415
 416 /* words 89, 90, SECU ERASE TIME */
 417 #define ERASE_BITS              0x00ff
 418
 419 /* word 92: master password revision */
 420 /* NOVAL_0 or  NOVAL_1 means no support for master password revision */
 421
 422 /* word 93: hw reset result */
 423 #define CBLID                   0x2000  /* CBLID status */
 424 #define RST0                    0x0001  /* 1=reset to device #0 */
 425 #define DEV_DET                 0x0006  /* how device num determined */
 426 #define JUMPER_VAL              0x0002  /* device num determined by jumper */
 427 #define CSEL_VAL                0x0004  /* device num determined by CSEL_VAL */
 428
 429 /* word 127: removable media status notification feature set support */
 430 #define RM_STAT_BITS            0x0003
 431 #define RM_STAT_SUP             0x0001
 432
 433 /* word 128: security */
 434 #define SECU_ENABLED    0x0002
 435 #define SECU_LEVEL              0x0010
 436 #define NUM_SECU_STR    6
 437 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 438 static const char *secu_str[] = {
 439         "supported",                    /* word 128, bit 0 */
 440         "enabled",                      /* word 128, bit 1 */
 441         "locked",                       /* word 128, bit 2 */
 442         "frozen",                       /* word 128, bit 3 */
 443         "expired: security count",      /* word 128, bit 4 */
 444         "supported: enhanced erase"     /* word 128, bit 5 */
 445 };
 446 #endif
 447
 448 /* word 160: CFA power mode */
 449 #define VALID_W160              0x8000  /* 1=word valid */
 450 #define PWR_MODE_REQ            0x2000  /* 1=CFA power mode req'd by some cmds*/
 451 #define PWR_MODE_OFF            0x1000  /* 1=CFA power moded disabled */
 452 #define MAX_AMPS                0x0fff  /* value = max current in ma */
 453
 454 /* word 255: integrity */
 455 #define SIG                     0x00ff  /* signature location */
 456 #define SIG_VAL                 0x00A5  /* signature value */
 457
 458 #define VERSION "v5.4"
 459
 460 #define TIMING_MB               64
 461 #define TIMING_BUF_MB           1
 462 #define TIMING_BUF_BYTES        (TIMING_BUF_MB * 1024 * 1024)
 463 #define TIMING_BUF_COUNT        (timing_MB / TIMING_BUF_MB)
 464 #define BUFCACHE_FACTOR         2
 465
 466 #undef DO_FLUSHCACHE            /* under construction: force cache flush on -W0 */
 467
 468 /* Busybox messages and functions */
 469
 470 static const char * const bb_msg_shared_mem     ="could not %s sharedmem buf";
 471 static const char * const bb_msg_op_not_supp    =" operation not supported on %s disks";
 472
 473 static void bb_ioctl(int fd, int request, void *argp, const char *string)
 474 {
 475         if (ioctl (fd, request, argp) != 0)
 476                 bb_perror_msg(" %s", string);
 477 }
 478
 479 static void if_printf(unsigned long i, char *fmt, ... )
 480 {
 481                 va_list ap;
 482                 va_start(ap, fmt);
 483                 if (i)
 484                         vprintf(fmt, ap);
 485                 va_end(ap);
 486 }
 487
 488 static void on_off (unsigned int value);
 489
 490 static void if_printf_on_off(unsigned long get_arg,const char *fmt, unsigned long arg)
 491 {
 492         if (get_arg)
 493         {
 494                 printf(fmt, arg);
 495                 on_off(arg);
 496         }
 497 }
 498
 499 static void bb_ioctl_on_off(int fd, int request, void *argp, const char *string,
 500                                                          const char * fmt)
 501 {
 502         if (ioctl (fd, request, &argp) != 0)
 503                 bb_perror_msg(" %s", string);
 504         else
 505         {
 506                 printf(fmt, (unsigned long) argp);
 507                 on_off((unsigned long) argp);
 508         }
 509 }
 510
 511 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 512 static void if_else_printf(unsigned long i, char *fmt1, char *fmt2, ... )
 513 {
 514                 va_list ap;
 515                 va_start(ap, fmt2);
 516                 if (i)
 517                         vprintf(fmt1, ap);
 518                 else
 519                         vprintf(fmt2, ap);
 520                 va_end(ap);
 521 }
 522
 523 static void print_ascii(uint16_t *p, uint8_t length);
 524
 525 static void xprint_ascii(uint16_t *val ,int i, char * string, int n)
 526 {
 527         if(val[i])
 528         {
 529                 printf("\t%-20s",string);
 530                 print_ascii(&val[i], n);
 531         }
 532 }
 533
 534 static void if_strcat(unsigned long test, char *modes, char *string)
 535 {
 536         if (test)
 537                 strcat(modes,string);
 538 }
 539 #endif
 540
 541 static void sync_and_sleep(int i)
 542 {
 543         sync();
 544         sleep(i);
 545 }
 546
 547 static uint16_t check_if_min_and_set_val(uint16_t a, uint16_t b)
 548 {
 549         if( a < b)
 550                 a = b;
 551         return a;
 552 }
 553
 554 static uint16_t check_if_maj_and_set_val(uint16_t a, uint16_t b)
 555 {
 556         if( a > b)
 557                 a = b;
 558         return a;
 559 }
 560
 561 static unsigned long int set_flag(char *p, char max)
 562 {
 563         if (*p >= '0' && *p <=  max )
 564                 return 1;
 565         return 0;
 566 }
 567
 568 /* end of  busybox specific stuff */
 569
 570 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 571 static uint8_t mode_loop(uint16_t mode_sup, uint16_t mode_sel, int cc, uint8_t *have_mode)
 572 {
 573         uint16_t ii;
 574         uint8_t err_dma = 0;
 575
 576         for(ii = 0; ii <= MODE_MAX; ii++)
 577         {
 578                 if(mode_sel & 0x0001)
 579                 {
 580                         printf("*%cdma%u ",cc,ii);
 581                         if(*have_mode)
 582                                 err_dma = 1;
 583                         *have_mode = 1;
 584                 }
 585                 else if(mode_sup & 0x0001)
 586                         printf("%cdma%u ",cc,ii);
 587
 588                 mode_sup >>=1;
 589                 mode_sel >>=1;
 590         }
 591         return err_dma;
 592 }
 593
 594 static void print_ascii(uint16_t *p, uint8_t length) {
 595         uint8_t ii;
 596         char cl;
 597
 598         /* find first non-space & print it */
 599         for(ii = 0; ii< length; ii++)
 600         {
 601                 if(((char) 0x00ff&((*p)>>8)) != ' ')
 602                         break;
 603                 if((cl = (char) 0x00ff&(*p)) != ' ')
 604                 {
 605                         if_printf((cl != '\0'),"%c",cl);
 606                         p++;
 607                         ii++;
 608                         break;
 609                 }
 610                 p++;
 611         }
 612         /* print the rest */
 613         for(; ii< length; ii++)
 614         {
 615                 if(!(*p))
 616                         break; /* some older devices have NULLs */
 617                 printf("%c%c",(char)0x00ff&((*p)>>8),(char)(*p)&0x00ff);
 618                 p++;
 619         }
 620         printf("\n");
 621 }
 622
 623 /* identify() is the only extern function used across two source files.  The
 624    others, though, were declared in hdparm.c with global scope; since other
 625    functions in that file have static (file) scope, I assume the difference is
 626    intentional. */
 627 static void identify (uint16_t *id_supplied, const char *devname)
 628 {
 629
 630         char *id_file = NULL;
 631         FILE *fl;
 632         uint16_t val[256], ii, jj, kk;
 633         uint16_t like_std = 1, std = 0, min_std = 0xffff;
 634         uint16_t dev = NO_DEV, eqpt = NO_DEV;
 635         uint8_t  have_mode = 0, err_dma = 0;
 636         uint8_t  chksum = 0;
 637         uint32_t ll, mm, nn, oo;
 638         __u64 bbbig; /* (:) */
 639
 640         if (id_supplied)
 641         {
 642 #if __BYTE_ORDER == __BIG_ENDIAN
 643                 swab(id_supplied, val, sizeof(val));
 644 #else
 645                 memcpy(val, id_supplied, sizeof(val));
 646 #endif
 647         }
 648         else
 649         {
 650                 id_file = xcalloc(1, strlen(devname)+22);
 651                 sprintf(id_file, "/proc/ide/%s/identify", devname);
 652                 /* open the file, read in all the info and close it */
 653                 if (id_file == NULL)
 654                         fl = stdin;
 655                 else
 656                         fl = bb_xfopen(id_file, "r");
 657
 658                 /* calculate checksum over all bytes */
 659                 for(ii = GEN_CONFIG; ii<=INTEGRITY; ii++)
 660                 {
 661                         unsigned int scratch;
 662                         if(1 != fscanf(fl,"%04x",&scratch))
 663                                 break;
 664                         val[ii] = (uint16_t)scratch;
 665                         chksum += val[ii] + (val[ii] >> 8);
 666                 }
 667                 fclose(fl);
 668                 /*bb_fclose_nonstdin(fl);*/
 669                 if(ii < (INTEGRITY+1))
 670                         bb_error_msg_and_die("Input file wrong format or length");
 671         }
 672         chksum &= 0xff;
 673
 674         /* check if we recognise the device type */
 675         printf("\n");
 676         if(!(val[GEN_CONFIG] & NOT_ATA))
 677         {
 678                 dev = ATA_DEV;
 679                 printf("ATA device, with ");
 680         }
 681         else if(val[GEN_CONFIG]==CFA_SUPPORT_VAL)
 682         {
 683                 dev = ATA_DEV;
 684                 like_std = 4;
 685                 printf("CompactFlash ATA device, with ");
 686         }
 687         else if(!(val[GEN_CONFIG] & NOT_ATAPI))
 688         {
 689                 dev = ATAPI_DEV;
 690                 eqpt = (val[GEN_CONFIG] & EQPT_TYPE) >> SHIFT_EQPT;
 691                 printf("ATAPI %s, with ", pkt_str[eqpt]);
 692                 like_std = 3;
 693         }
 694         else
 695                 /*"Unknown device type:\n\tbits 15&14 of general configuration word 0 both set to 1.\n"*/
 696                 bb_error_msg_and_die("Unknown device type");
 697
 698         if_printf(!(val[GEN_CONFIG] & MEDIA_REMOVABLE),"non-");
 699         printf("removable media\n");
 700
 701         /* Info from the specific configuration word says whether or not the
 702          * ID command completed correctly.  It is only defined, however in
 703          * ATA/ATAPI-5 & 6; it is reserved (value theoretically 0) in prior
 704          * standards.  Since the values allowed for this word are extremely
 705          * specific, it should be safe to check it now, even though we don't
 706          * know yet what standard this device is using.
 707          */
 708         if((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==STBY_ID_VAL) ||
 709            (val[CONFIG]==PWRD_NID_VAL) || (val[CONFIG]==PWRD_ID_VAL) )
 710         {
 711                 like_std = 5;
 712                 if_printf(((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==STBY_ID_VAL)),
 713                                         "powers-up in standby; SET FEATURES subcmd spins-up.\n");
 714                 if_printf((((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==PWRD_NID_VAL)) && (val[GEN_CONFIG] & INCOMPLETE)),
 715                                         "\n\tWARNING: ID response incomplete.\n\tFollowing data may be incorrect.\n\n");
 716         }
 717
 718         /* output the model and serial numbers and the fw revision */
 719         xprint_ascii(val, START_MODEL,  "Model Number:",        LENGTH_MODEL);
 720         xprint_ascii(val, START_SERIAL, "Serial Number:",       LENGTH_SERIAL);
 721         xprint_ascii(val, START_FW_REV, "Firmware Revision:",   LENGTH_FW_REV);
 722         xprint_ascii(val, START_MEDIA,  "Media Serial Num:",    LENGTH_MEDIA);
 723         xprint_ascii(val, START_MANUF,  "Media Manufacturer:",  LENGTH_MANUF);
 724
 725         /* major & minor standards version number (Note: these words were not
 726          * defined until ATA-3 & the CDROM std uses different words.) */
 727         printf("Standards:");
 728         if(eqpt != CDROM)
 729         {
 730                 if(val[MINOR] && (val[MINOR] <= MINOR_MAX))
 731                 {
 732                         like_std=check_if_min_and_set_val(like_std, 3);
 733                         std = actual_ver[val[MINOR]];
 734                         if_printf(std,"\n\tUsed: %s ",minor_str[val[MINOR]]);
 735
 736                 }
 737                 /* looks like when they up-issue the std, they obsolete one;
 738                  * thus, only the newest 4 issues need be supported. (That's
 739                  * what "kk" and "min_std" are all about.) */
 740                 if(val[MAJOR] && (val[MAJOR] !=NOVAL_1))
 741                 {
 742                         printf("\n\tSupported: ");
 743                         jj = val[MAJOR] << 1;
 744                         kk = like_std >4 ? like_std-4: 0;
 745                         for(ii = 14; (ii >0)&&(ii>kk); ii--)
 746                         {
 747                                 if(jj & 0x8000)
 748                                 {
 749                                         printf("%u ", ii);
 750                                         if(like_std < ii)
 751                                         {
 752                                                 like_std = ii;
 753                                                 kk = like_std >4 ? like_std-4: 0;
 754                                         }
 755                                         min_std=check_if_maj_and_set_val(min_std, ii);
 756                                 }
 757                                 jj <<= 1;
 758                         }
 759                         like_std=check_if_min_and_set_val(like_std, 3);
 760                 }
 761                 /* Figure out what standard the device is using if it hasn't told
 762                  * us.  If we know the std, check if the device is using any of
 763                  * the words from the next level up.  It happens.
 764                  */
 765                 like_std=check_if_min_and_set_val(like_std, std);
 766
 767                 if(((std == 5) || (!std && (like_std < 6))) &&
 768                         ((((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 769                         ((      val[CMDS_SUPP_1] & CMDS_W83) > 0x00ff)) ||
 770                         (((     val[CMDS_SUPP_2] & VALID) == VALID_VAL) &&
 771                         (       val[CMDS_SUPP_2] & CMDS_W84) ) ) )
 772                 {
 773                         like_std = 6;
 774                 }
 775                 else if(((std == 4) || (!std && (like_std < 5))) &&
 776                         ((((val[INTEGRITY]      & SIG) == SIG_VAL) && !chksum) ||
 777                         ((      val[HWRST_RSLT] & VALID) == VALID_VAL) ||
 778                         (((     val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 779                         ((      val[CMDS_SUPP_1] & CMDS_W83) > 0x001f)) ) )
 780                 {
 781                         like_std = 5;
 782                 }
 783                 else if(((std == 3) || (!std && (like_std < 4))) &&
 784                                 ((((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 785                                 (((     val[CMDS_SUPP_1] & CMDS_W83) > 0x0000) ||
 786                                 ((      val[CMDS_SUPP_0] & CMDS_W82) > 0x000f))) ||
 787                                 ((      val[CAPAB_1] & VALID) == VALID_VAL) ||
 788                                 ((      val[WHATS_VALID] & OK_W88) && val[ULTRA_DMA]) ||
 789                                 ((      val[RM_STAT] & RM_STAT_BITS) == RM_STAT_SUP) ) )
 790                 {
 791                         like_std = 4;
 792                 }
 793                 else if(((std == 2) || (!std && (like_std < 3))) &&
 794                            ((val[CMDS_SUPP_1] & VALID) == VALID_VAL) )
 795                 {
 796                         like_std = 3;
 797                 }
 798                 else if(((std == 1) || (!std && (like_std < 2))) &&
 799                                 ((val[CAPAB_0] & (IORDY_SUP | IORDY_OFF)) ||
 800                                 (val[WHATS_VALID] & OK_W64_70)) )
 801                 {
 802                         like_std = 2;
 803                 }
 804                 if(!std)
 805                         printf("\n\tLikely used: %u\n",like_std);
 806                 else if(like_std > std)
 807                         printf("& some of %u\n",like_std);
 808                 else
 809                         printf("\n");
 810         }
 811         else
 812         {
 813                 /* TBD: do CDROM stuff more thoroughly.  For now... */
 814                 kk = 0;
 815                 if(val[CDR_MINOR] == 9)
 816                 {
 817                         kk = 1;
 818                         printf("\n\tUsed: ATAPI for CD-ROMs, SFF-8020i, r2.5");
 819                 }
 820                 if(val[CDR_MAJOR] && (val[CDR_MAJOR] !=NOVAL_1))
 821                 {
 822                         kk = 1;
 823                         printf("\n\tSupported: CD-ROM ATAPI");
 824                         jj = val[CDR_MAJOR] >> 1;
 825                         for(ii = 1; ii <15; ii++)
 826                         {
 827                                 if_printf((jj & 0x0001),"-%u ", ii);
 828                                 jj >>= 1;
 829                         }
 830                 }
 831                 if_else_printf((!kk),"\n\tLikely used CD-ROM ATAPI-1\n","\n");
 832                 /* the cdrom stuff is more like ATA-2 than anything else, so: */
 833                 like_std = 2;
 834         }
 835
 836         if(min_std == 0xffff)
 837                 min_std = like_std > 4 ? like_std - 3 : 1;
 838
 839         printf("Configuration:\n");
 840         /* more info from the general configuration word */
 841         if((eqpt != CDROM) && (like_std == 1))
 842         {
 843                 jj = val[GEN_CONFIG] >> 1;
 844                 for(ii = 1; ii < 15; ii++)
 845                 {
 846                         if_printf((jj & 0x0001),"\t%s\n",ata1_cfg_str[ii]);
 847                         jj >>=1;
 848                 }
 849         }
 850         if(dev == ATAPI_DEV)
 851         {
 852                 printf("\tDRQ response: "); /* Data Request (DRQ) */
 853                 switch(val[GEN_CONFIG] & DRQ_RESPONSE_TIME)
 854                 {
 855                         case DRQ_3MS_VAL :
 856                                 printf("3ms.\n");
 857                                 break;
 858                         case DRQ_INTR_VAL :
 859                                 printf("<=10ms with INTRQ\n");
 860                                 break;
 861                         case DRQ_50US_VAL :
 862                                 printf("50us.\n");
 863                                 break;
 864                         default :
 865                                 printf("unknown.\n");
 866                                 break;
 867                 }
 868                 printf("\tPacket size: ");
 869                 switch(val[GEN_CONFIG] & PKT_SIZE_SUPPORTED)
 870                 {
 871                         case PKT_SIZE_12_VAL :
 872                                 printf("12 bytes\n");
 873                                 break;
 874                         case PKT_SIZE_16_VAL :
 875                                 printf("16 bytes\n");
 876                                 break;
 877                         default :
 878                                 printf("Unknown\n");
 879                                 break;
 880                 }
 881         }
 882         else
 883         {
 884                 /* addressing...CHS? See section 6.2 of ATA specs 4 or 5 */
 885                 ll = (uint32_t)val[LBA_SECTS_MSB] << 16 | val[LBA_SECTS_LSB];
 886                 mm = 0; bbbig = 0;
 887                 if ( (ll > 0x00FBFC10) && (!val[LCYLS]))
 888                         printf("\tCHS addressing not supported\n");
 889                 else
 890                 {
 891                         jj = val[WHATS_VALID] & OK_W54_58;
 892                         printf("\tLogical\t\tmax\tcurrent\n\tcylinders\t%u\t%u\n\theads\t\t%u\t%u\n\tsectors/track\t%u\t%u\n\t--\n",
 893                                         val[LCYLS],jj?val[LCYLS_CUR]:0, val[LHEADS],jj?val[LHEADS_CUR]:0, val[LSECTS],jj?val[LSECTS_CUR]:0);
 894
 895                         if_printf(((min_std == 1) && (val[TRACK_BYTES] || val[SECT_BYTES])),
 896                                                 "\tbytes/track: %u\tbytes/sector: %u\n",val[TRACK_BYTES], val[SECT_BYTES]);
 897
 898                         if(jj)
 899                         {
 900                                 mm = (uint32_t)val[CAPACITY_MSB] << 16 | val[CAPACITY_LSB];
 901                                 if(like_std < 3)
 902                                 {
 903                                          /* check Endian of capacity bytes */
 904                                         nn = val[LCYLS_CUR] * val[LHEADS_CUR] * val[LSECTS_CUR];
 905                                         oo = (uint32_t)val[CAPACITY_LSB] << 16 | val[CAPACITY_MSB];
 906                                         if(abs(mm - nn) > abs(oo - nn))
 907                                                 mm = oo;
 908                                 }
 909                                 printf("\tCHS current addressable sectors:%11u\n",mm);
 910                         }
 911                 }
 912                 /* LBA addressing */
 913                 printf("\tLBA    user addressable sectors:%11u\n",ll);
 914                 if( ((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 915                      (val[CMDS_SUPP_1] & SUPPORT_48_BIT) )
 916                 {
 917                         bbbig = (__u64)val[LBA_64_MSB]  << 48 |
 918                                 (__u64)val[LBA_48_MSB]  << 32 |
 919                                 (__u64)val[LBA_MID]     << 16 |
 920                                         val[LBA_LSB] ;
 921                         printf("\tLBA48  user addressable sectors:%11llu\n",bbbig);
 922                 }
 923
 924                 if (!bbbig)
 925                         bbbig = (__u64)(ll>mm ? ll : mm); /* # 512 byte blocks */
 926                 printf("\tdevice size with M = 1024*1024: %11llu MBytes\n",bbbig>>11);
 927                 bbbig = (bbbig<<9)/1000000;
 928                 printf("\tdevice size with M = 1000*1000: %11llu MBytes ",bbbig);
 929
 930                 if_else_printf((bbbig > 1000),"(%llu GB)\n","\n",bbbig/1000);
 931
 932         }
 933
 934         /* hw support of commands (capabilities) */
 935         printf("Capabilities:\n\t");
 936
 937         if(dev == ATAPI_DEV)
 938         {
 939                 if(eqpt != CDROM)
 940                         if_printf((val[CAPAB_0] & CMD_Q_SUP),"Cmd queuing, ");
 941
 942                 if_printf((val[CAPAB_0] & OVLP_SUP),"Cmd overlap, ");
 943         }
 944         if_printf((val[CAPAB_0] & LBA_SUP),"LBA, ");
 945
 946         if(like_std != 1)
 947         {
 948                 printf("IORDY");
 949                 if_printf((!(val[CAPAB_0] & IORDY_SUP)),"(may be)");
 950                 if_else_printf((val[CAPAB_0] & IORDY_OFF),"(can","(cannot");
 951                 printf(" be disabled)\n");
 952         }
 953         else
 954                 printf("no IORDY\n");
 955
 956         if((like_std == 1) && val[BUF_TYPE])
 957         {
 958                 kk = val[BUF_TYPE];
 959                 printf("\tBuffer type: %04x: ",kk);
 960                 if_else_printf((kk < 2),"single port, single-sector","dual port, multi-sector");
 961                 if_printf((kk > 2)," with read caching ability");
 962                 printf("\n");
 963         }
 964         jj = 0;
 965         if((min_std == 1) && (val[BUFFER__SIZE] && (val[BUFFER__SIZE] != NOVAL_1)))
 966         {
 967                 printf("\tBuffer size: %.1fkB",(float)val[BUFFER__SIZE]/2);
 968                 jj = 1;
 969         }
 970         if((min_std < 4) && (val[RW_LONG]))
 971         {
 972                 printf("\tbytes avail on r/w long: %u",val[RW_LONG]);
 973                 jj = 1;
 974         }
 975         if((eqpt != CDROM) && (like_std > 3))
 976         {
 977                 printf("\tQueue depth: %u",(val[QUEUE_DEPTH] & DEPTH_BITS)+1);
 978                 jj = 1;
 979         }
 980         if_printf(jj,"\n");
 981
 982         if(dev == ATA_DEV)
 983         {
 984                 if(like_std == 1)
 985                         printf("\tCan%s perform double-word IO\n",(!val[DWORD_IO]) ?"not":"");
 986                 else
 987                 {
 988                         printf("\tStandby timer values: spec'd by ");
 989                         if_else_printf((val[CAPAB_0] & STD_STBY),"Standard","Vendor");
 990                         if((like_std > 3) && ((val[CAPAB_1] & VALID) == VALID_VAL))
 991                                 printf(", %s device specific minimum\n",(val[CAPAB_1] & MIN_STANDBY_TIMER)?"with":"no");
 992                         else
 993                           printf("\n");
 994                 }
 995                 printf("\tR/W multiple sector transfer: ");
 996                 if((like_std < 3) && !(val[SECTOR_XFER_MAX] & SECTOR_XFER))
 997                         printf("not supported\n");
 998                 else
 999                 {
1000                         printf("Max = %u\tCurrent = ",val[SECTOR_XFER_MAX] & SECTOR_XFER);
1001                         if_else_printf((val[SECTOR_XFER_CUR] & MULTIPLE_SETTING_VALID),
1002                                                         "%u\n","?\n",val[SECTOR_XFER_CUR] & SECTOR_XFER);
1003                 }
1004                 if((like_std > 3) && (val[CMDS_SUPP_1] & 0x0008))
1005                 {
1006                         /* We print out elsewhere whether the APM feature is enabled or
1007                            not.  If it's not enabled, let's not repeat the info; just print
1008                            nothing here. */
1009                         printf("\tAdvancedPM level: ");
1010                         if ( (val[ADV_PWR] & 0xFF00) == 0x4000 )
1011                         {
1012                                 uint8_t apm_level = val[ADV_PWR] & 0x00FF;
1013                                 printf("%u (0x%x)\n", apm_level, apm_level);
1014                         }
1015                         else
1016                                 printf("unknown setting (0x%04x)\n", val[ADV_PWR]);
1017                 }
1018                 if(like_std > 5)
1019                 {
1020                         if_printf(val[ACOUSTIC],"\tRecommended acoustic management value: %u, current value: %u\n",
1021                                                                         (val[ACOUSTIC] >> 8) & 0x00ff, val[ACOUSTIC] & 0x00ff);
1022                 }
1023         }
1024         else
1025         {
1026                  /* ATAPI */
1027                 if(eqpt != CDROM)
1028                         if_printf((val[CAPAB_0] & SWRST_REQ),"\tATA sw reset required\n");
1029
1030                 if(val[PKT_REL] || val[SVC_NBSY])
1031                 {
1032                         printf("\tOverlap support:");
1033                         if_printf(val[PKT_REL]," %uus to release bus.",val[PKT_REL]);
1034                         if_printf(val[SVC_NBSY]," %uus to clear BSY after SERVICE cmd.",val[SVC_NBSY]);
1035                         printf("\n");
1036                 }
1037         }
1038
1039         /* DMA stuff. Check that only one DMA mode is selected. */
1040         printf("\tDMA: ");
1041         if(!(val[CAPAB_0] & DMA_SUP))
1042                 printf("not supported\n");
1043         else
1044         {
1045                 if_printf((val[DMA_MODE] && !val[SINGLE_DMA] && !val[MULTI_DMA]),
1046                                         " sdma%u\n",(val[DMA_MODE] & MODE) >> 8);
1047                 if(val[SINGLE_DMA])
1048                 {
1049                         jj = val[SINGLE_DMA];
1050                         kk = val[SINGLE_DMA] >> 8;
1051                         err_dma += mode_loop(jj,kk,'s',&have_mode);
1052                 }
1053                 if(val[MULTI_DMA])
1054                 {
1055                         jj = val[MULTI_DMA];
1056                         kk = val[MULTI_DMA] >> 8;
1057                         err_dma += mode_loop(jj,kk,'m',&have_mode);
1058                 }
1059                 if((val[WHATS_VALID] & OK_W88) && val[ULTRA_DMA])
1060                 {
1061                         jj = val[ULTRA_DMA];
1062                         kk = val[ULTRA_DMA] >> 8;
1063                         err_dma += mode_loop(jj,kk,'u',&have_mode);
1064                 }
1065                 if_printf((err_dma || !have_mode),"(?)");
1066                 printf("\n");
1067
1068                 if_printf(((dev == ATAPI_DEV) && (eqpt != CDROM) && (val[CAPAB_0] & DMA_IL_SUP)),
1069                                         "\t     Interleaved DMA support\n");
1070
1071                 if((val[WHATS_VALID] & OK_W64_70) &&
1072                    (val[DMA_TIME_MIN] || val[DMA_TIME_NORM]))
1073                 {
1074                         printf("\t     Cycle time:");
1075                         if_printf(val[DMA_TIME_MIN]," min=%uns",val[DMA_TIME_MIN]);
1076                         if_printf(val[DMA_TIME_NORM]," recommended=%uns",val[DMA_TIME_NORM]);
1077                         printf("\n");
1078                 }
1079         }
1080
1081         /* Programmed IO stuff */
1082         printf("\tPIO: ");
1083         /* If a drive supports mode n (e.g. 3), it also supports all modes less
1084          * than n (e.g. 3, 2, 1 and 0).  Print all the modes. */
1085         if((val[WHATS_VALID] & OK_W64_70) && (val[ADV_PIO_MODES] & PIO_SUP))
1086         {
1087                 jj = ((val[ADV_PIO_MODES] & PIO_SUP) << 3) | 0x0007;
1088                 for(ii = 0; ii <= PIO_MODE_MAX ; ii++)
1089                 {
1090                         if_printf((jj & 0x0001),"pio%d ",ii);
1091                         jj >>=1;
1092                 }
1093                 printf("\n");
1094         }
1095         else if(((min_std < 5) || (eqpt == CDROM)) && (val[PIO_MODE] & MODE) )
1096         {
1097                 for(ii = 0; ii <= val[PIO_MODE]>>8; ii++)
1098                         printf("pio%d ",ii);
1099                 printf("\n");
1100         }
1101         else
1102                 printf("unknown\n");
1103
1104         if(val[WHATS_VALID] & OK_W64_70)
1105         {
1106                 if(val[PIO_NO_FLOW] || val[PIO_FLOW])
1107                 {
1108                         printf("\t     Cycle time:");
1109                         if_printf(val[PIO_NO_FLOW]," no flow control=%uns", val[PIO_NO_FLOW]);
1110                         if_printf(val[PIO_FLOW],"  IORDY flow control=%uns", val[PIO_FLOW]);
1111                         printf("\n");
1112                 }
1113         }
1114
1115         if((val[CMDS_SUPP_1] & VALID) == VALID_VAL)
1116         {
1117                 printf("Commands/features:\n\tEnabled\tSupported:\n");
1118                 jj = val[CMDS_SUPP_0];
1119                 kk = val[CMDS_EN_0];
1120                 for(ii = 0; ii < NUM_CMD_FEAT_STR; ii++)
1121                 {
1122                         if((jj & 0x8000) && (*cmd_feat_str[ii] != '\0'))
1123                         {
1124                                 if_else_printf((kk & 0x8000),"\t   *","\t");
1125                                 printf("\t%s\n",cmd_feat_str[ii]);
1126                         }
1127                         jj <<=1; kk<<=1;
1128                         if(ii%16 == 15)
1129                         {
1130                                 jj = val[CMDS_SUPP_0+1+(ii/16)];
1131                                 kk = val[CMDS_EN_0+1+(ii/16)];
1132                         }
1133                         if(ii == 31)
1134                         {
1135                                 if((val[CMDS_SUPP_2] & VALID) != VALID_VAL)
1136                                         ii +=16;
1137                         }
1138                 }
1139         }
1140         if_printf(((val[RM_STAT] & RM_STAT_BITS) == RM_STAT_SUP),
1141                                 "\tRemovable Media Status Notification feature set supported\n");
1142
1143
1144         /* security */
1145         if((eqpt != CDROM) && (like_std > 3) &&
1146            (val[SECU_STATUS] || val[ERASE_TIME] || val[ENH_ERASE_TIME]))
1147         {
1148                 printf("Security: \n");
1149                 if_printf((val[PSWD_CODE] && (val[PSWD_CODE] != NOVAL_1)),
1150                                         "\tMaster password revision code = %u\n",val[PSWD_CODE]);
1151                 jj = val[SECU_STATUS];
1152                 if(jj)
1153                 {
1154                         for(ii = 0; ii < NUM_SECU_STR; ii++)
1155                         {
1156                                 if_else_printf((!(jj & 0x0001)),"\tnot\t%s\n", "\t\t%s\n", secu_str[ii]);
1157                                 jj >>=1;
1158                         }
1159                         if(val[SECU_STATUS] & SECU_ENABLED)
1160                         {
1161                                 printf("\tSecurity level ");
1162                                 if_else_printf((val[SECU_STATUS] & SECU_LEVEL),"maximum\n","high\n");
1163                         }
1164                 }
1165                 jj =  val[ERASE_TIME]     & ERASE_BITS;
1166                 kk =  val[ENH_ERASE_TIME] & ERASE_BITS;
1167                 if(jj || kk)
1168                 {
1169                         printf("\t");
1170                         if_printf(jj,"%umin for SECURITY ERASE UNIT. ", jj==ERASE_BITS ? 508 : jj<<1);
1171                         if_printf(kk,"%umin for ENHANCED SECURITY ERASE UNIT.", kk==ERASE_BITS ? 508 : kk<<1);
1172                         printf("\n");
1173                 }
1174         }
1175
1176         /* reset result */
1177         if((val[HWRST_RSLT] & VALID) == VALID_VAL)
1178         {
1179                 printf("HW reset results:\n");
1180                 if_else_printf((val[HWRST_RSLT] & CBLID),"\tCBLID- above Vih\n","\tCBLID- below Vih\n");
1181
1182                 if(val[HWRST_RSLT] & RST0)
1183                 {
1184                         printf("\tDevice num = 0");
1185                         jj = val[HWRST_RSLT];
1186                 }
1187                 else
1188                 {
1189                         printf("\tDevice num = 1");
1190                         jj = val[HWRST_RSLT] >> 8;
1191                 }
1192
1193                 if((jj & DEV_DET) == JUMPER_VAL)
1194                         printf(" determined by the jumper");
1195                 else if((jj & DEV_DET) == CSEL_VAL)
1196                         printf(" determined by CSEL");
1197                 printf("\n");
1198         }
1199
1200         /* more stuff from std 5 */
1201         if((like_std > 4) && (eqpt != CDROM))
1202         {
1203                 if(val[CFA_PWR_MODE] & VALID_W160)
1204                 {
1205                         printf("CFA power mode 1:\n\t");
1206                         if_else_printf((val[CFA_PWR_MODE] & PWR_MODE_OFF),"disabled","enabled");
1207
1208                         if_printf((val[CFA_PWR_MODE] & PWR_MODE_REQ)," and required by some commands");
1209                         printf("\n");
1210
1211                         if_printf((val[CFA_PWR_MODE] & MAX_AMPS),"\tMaximum current = %uma\n",val[CFA_PWR_MODE] & MAX_AMPS);
1212                 }
1213                 if((val[INTEGRITY] & SIG) == SIG_VAL)
1214                 {
1215                         printf("Checksum: ");
1216                         if_printf(chksum,"in");
1217                         printf("correct\n");
1218                 }
1219         }
1220
1221         exit(0);
1222 }
1223 #endif
1224
1225 static int verbose = 0, get_identity = 0, get_geom = 0, noisy = 1, quiet = 0;
1226 static int flagcount = 0, do_flush = 0, is_scsi_hd = 0, is_xt_hd = 0;
1227 static int do_ctimings, do_timings = 0;
1228
1229 static unsigned long set_readahead= 0, get_readahead= 0, Xreadahead= 0;
1230 static unsigned long set_readonly = 0, get_readonly = 0, readonly = 0;
1231 static unsigned long set_unmask   = 0, get_unmask   = 0, unmask   = 0;
1232 static unsigned long set_mult     = 0, get_mult     = 0, mult     = 0;
1233 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
1234 static unsigned long set_dma      = 0, get_dma      = 0, dma      = 0;
1235 #endif
1236 static unsigned long set_dma_q    = 0, get_dma_q    = 0, dma_q    = 0;
1237 static unsigned long set_nowerr   = 0, get_nowerr   = 0, nowerr   = 0;
1238 static unsigned long set_keep     = 0, get_keep     = 0, keep     = 0;
1239 static unsigned long set_io32bit  = 0, get_io32bit  = 0, io32bit  = 0;
1240 static unsigned long set_piomode  = 0, noisy_piomode= 0;
1241 static int piomode = 0;
1242 #ifdef HDIO_DRIVE_CMD
1243 static unsigned long set_dkeep    = 0, get_dkeep    = 0, dkeep    = 0;
1244 static unsigned long set_standby  = 0, get_standby  = 0, standby_requested= 0;
1245 static unsigned long set_xfermode = 0, get_xfermode = 0;
1246 static int xfermode_requested= 0;
1247 static unsigned long set_lookahead= 0, get_lookahead= 0, lookahead= 0;
1248 static unsigned long set_prefetch = 0, get_prefetch = 0, prefetch = 0;
1249 static unsigned long set_defects  = 0, get_defects  = 0, defects  = 0;
1250 static unsigned long set_wcache   = 0, get_wcache   = 0, wcache   = 0;
1251 static unsigned long set_doorlock = 0, get_doorlock = 0, doorlock = 0;
1252 static unsigned long set_seagate  = 0, get_seagate  = 0;
1253 static unsigned long set_standbynow = 0, get_standbynow = 0;
1254 static unsigned long set_sleepnow   = 0, get_sleepnow   = 0;
1255 static unsigned long get_powermode  = 0;
1256 static unsigned long set_apmmode = 0, get_apmmode= 0, apmmode = 0;
1257 #endif
1258 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
1259 static int get_IDentity = 0;
1260 #endif
1261 #ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
1262 static int      unregister_hwif = 0;
1263 static int      hwif = 0;
1264 #endif
1265 #ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
1266 static int      scan_hwif = 0;
1267 static int      hwif_data = 0;
1268 static int      hwif_ctrl = 0;
1269 static int      hwif_irq = 0;
1270 #endif
1271 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1272 static int      set_busstate = 0, get_busstate = 0, busstate = 0;
1273 #endif
1274 static int      reread_partn = 0;
1275
1276 #ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
1277 static int      perform_reset = 0;
1278 #endif /* CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET */
1279 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1280 static int      perform_tristate = 0,   tristate = 0;
1281 #endif /* CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
1282
1283 // Historically, if there was no HDIO_OBSOLETE_IDENTITY, then
1284 // then the HDIO_GET_IDENTITY only returned 142 bytes.
1285 // Otherwise, HDIO_OBSOLETE_IDENTITY returns 142 bytes,
1286 // and HDIO_GET_IDENTITY returns 512 bytes.  But the latest
1287 // 2.5.xx kernels no longer define HDIO_OBSOLETE_IDENTITY
1288 // (which they should, but they should just return -EINVAL).
1289 //
1290 // So.. we must now assume that HDIO_GET_IDENTITY returns 512 bytes.
1291 // On a really old system, it will not, and we will be confused.
1292 // Too bad, really.
1293
1294 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
1295 static const char *cfg_str[] =
1296 {       "",          " HardSect",   " SoftSect",  " NotMFM",
1297         " HdSw>15uSec", " SpinMotCtl", " Fixed",     " Removeable",
1298         " DTR<=5Mbs",   " DTR>5Mbs",   " DTR>10Mbs", " RotSpdTol>.5%",
1299         " dStbOff",     " TrkOff",     " FmtGapReq", " nonMagnetic"
1300 };
1301
1302 static const char *BuffType[]   = {"unknown", "1Sect", "DualPort", "DualPortCache"};
1303
1304 static void dump_identity (const struct hd_driveid *id)
1305 {
1306         int i;
1307         char pmodes[64] = {0,}, dmodes[128]={0,}, umodes[128]={0,};
1308         const unsigned short int *id_regs= (const void*) id;
1309         unsigned long capacity;
1310
1311         printf("\n Model=%.40s, FwRev=%.8s, SerialNo=%.20s\n Config={",
1312                                 id->model, id->fw_rev, id->serial_no);
1313         for (i=0; i<=15; i++)
1314                 if_printf((id->config & (1<<i)),"%s", cfg_str[i]);
1315
1316         printf(" }\n RawCHS=%u/%u/%u, TrkSize=%u, SectSize=%u, ECCbytes=%u\n",
1317                                 id->cyls, id->heads, id->sectors, id->track_bytes,
1318                                 id->sector_bytes, id->ecc_bytes);
1319
1320         if (id->buf_type > 3)
1321                 printf("%s%u", " BuffType=", id->buf_type);
1322         else
1323                 printf("%s%s", " BuffType=", BuffType[id->buf_type]);
1324
1325         printf(", BuffSize=%ukB, MaxMultSect=%u", id->buf_size/2, id->max_multsect);
1326         if (id->max_multsect)
1327         {
1328                 printf(", MultSect=");
1329                 if (!(id->multsect_valid&1))
1330                         printf("?%u?", id->multsect);
1331                 else if (id->multsect)
1332                         printf("%u", id->multsect);
1333                 else
1334                         printf("off");
1335         }
1336         printf("\n");
1337         if (id->tPIO <= 5)
1338         {
1339                 strcat(pmodes, "pio0 ");
1340                 if_strcat((id->tPIO >= 1), pmodes, "pio1 ");
1341                 if_strcat((id->tPIO >= 2), pmodes, "pio2 ");
1342
1343         }
1344         if_printf((!(id->field_valid&1))," (maybe):");
1345 #if __BYTE_ORDER == __BIG_ENDIAN
1346         capacity = (id->cur_capacity0 << 16) | id->cur_capacity1;
1347 #else
1348         capacity = (id->cur_capacity1 << 16) | id->cur_capacity0;
1349 #endif
1350         printf(" CurCHS=%u/%u/%u, CurSects=%lu, LBA=%s",id->cur_cyls, id->cur_heads,
1351                                                                                                         id->cur_sectors, capacity ,
1352                                                                                         ((id->capability&2)==0)?"no":"yes");
1353
1354         if_printf((id->capability&2),", LBAsects=%u", id->lba_capacity);
1355
1356         if (id->capability&1)
1357         {
1358                 if (id->dma_1word | id->dma_mword)
1359                 {
1360                         if_strcat((id->dma_1word & 0x100),      dmodes, "*");
1361                         if_strcat((id->dma_1word & 1),          dmodes, "sdma0 ");
1362                         if_strcat((id->dma_1word & 0x200),      dmodes, "*");
1363                         if_strcat((id->dma_1word & 2),          dmodes, "sdma1 ");
1364                         if_strcat((id->dma_1word & 0x400),      dmodes, "*");
1365                         if_strcat((id->dma_1word & 4),          dmodes, "sdma2 ");
1366                         if_strcat((id->dma_1word & 0xf800),     dmodes, "*");
1367                         if_strcat((id->dma_1word & 0xf8),       dmodes, "sdma? ");
1368                         if_strcat((id->dma_mword & 0x100),      dmodes, "*");
1369                         if_strcat((id->dma_mword & 1),          dmodes, "mdma0 ");
1370                         if_strcat((id->dma_mword & 0x200),      dmodes, "*");
1371                         if_strcat((id->dma_mword & 2),          dmodes, "mdma1 ");
1372                         if_strcat((id->dma_mword & 0x400),      dmodes, "*");
1373                         if_strcat((id->dma_mword & 4),          dmodes, "mdma2 ");
1374                         if_strcat((id->dma_mword & 0xf800),     dmodes, "*");
1375                         if_strcat((id->dma_mword & 0xf8),       dmodes, "mdma? ");
1376                 }
1377         }
1378         printf("\n IORDY=");
1379         if (id->capability&8)
1380                 printf((id->capability&4) ? "on/off" : "yes");
1381         else
1382                 printf("no");
1383
1384         if ((id->capability&8) || (id->field_valid&2))
1385         {
1386                 if (id->field_valid&2)
1387                 {
1388                         printf(", tPIO={min:%u,w/IORDY:%u}", id->eide_pio, id->eide_pio_iordy);
1389                         if_strcat((id->eide_pio_modes & 1), pmodes, "pio3 ");
1390                         if_strcat((id->eide_pio_modes & 2), pmodes, "pio4 ");
1391                         if_strcat((id->eide_pio_modes &~3), pmodes, "pio? ");
1392                 }
1393                 if (id->field_valid&4)
1394                 {
1395                         if_strcat((id->dma_ultra & 0x100),umodes,"*");
1396                         if_strcat((id->dma_ultra & 0x001),umodes,"udma0 ");
1397                         if_strcat((id->dma_ultra & 0x200),umodes,"*");
1398                         if_strcat((id->dma_ultra & 0x002),umodes,"udma1 ");
1399                         if_strcat((id->dma_ultra & 0x400),umodes,"*");
1400                         if_strcat((id->dma_ultra & 0x004),umodes,"udma2 ");
1401 #ifdef __NEW_HD_DRIVE_ID
1402                         if (id->hw_config & 0x2000)
1403                         {
1404 #else /* !__NEW_HD_DRIVE_ID */
1405                         if (id->word93 & 0x2000)
1406                         {
1407 #endif /* __NEW_HD_DRIVE_ID */
1408                                 if_strcat((id->dma_ultra & 0x0800),umodes,"*");
1409                                 if_strcat((id->dma_ultra & 0x0008),umodes,"udma3 ");
1410                                 if_strcat((id->dma_ultra & 0x1000),umodes,"*");
1411                                 if_strcat((id->dma_ultra & 0x0010),umodes,"udma4 ");
1412                                 if_strcat((id->dma_ultra & 0x2000),umodes,"*");
1413                                 if_strcat((id->dma_ultra & 0x0020),umodes,"udma5 ");
1414                                 if_strcat((id->dma_ultra & 0x4000),umodes,"*");
1415                                 if_strcat((id->dma_ultra & 0x0040),umodes,"udma6 ");
1416                                 if_strcat((id->dma_ultra & 0x8000),umodes,"*");
1417                                 if_strcat((id->dma_ultra & 0x0080),umodes,"udma7 ");
1418                         }
1419                 }
1420         }
1421         if_printf(((id->capability&1) && (id->field_valid&2)),
1422                                 ", tDMA={min:%u,rec:%u}", id->eide_dma_min, id->eide_dma_time);
1423         printf("\n PIO modes:  %s", pmodes);
1424         if_printf((*dmodes),"\n DMA modes:  %s", dmodes);
1425         if_printf((*umodes),"\n UDMA modes: %s", umodes);
1426
1427         printf("\n AdvancedPM=%s",((id_regs[83]&8)==0)?"no":"yes");
1428         if (id_regs[83] & 8)
1429         {
1430                 if (!(id_regs[86]&8))
1431                         printf(": disabled (255)");
1432                 else if ((id_regs[91]&0xFF00)!=0x4000)
1433                         printf(": unknown setting");
1434                 else
1435                         printf(": mode=0x%02X (%u)",id_regs[91]&0xFF,id_regs[91]&0xFF);
1436         }
1437         if_printf( (id_regs[82]&0x20)," WriteCache=%s",(id_regs[85]&0x20) ? "enabled" : "disabled");
1438 #ifdef __NEW_HD_DRIVE_ID
1439         if ((id->minor_rev_num && id->minor_rev_num <= 31) || (id->major_rev_num && id->minor_rev_num <= 31))
1440         {
1441                 printf("\n Drive conforms to: ");
1442                 if_else_printf((id->minor_rev_num <= 31),"%s: ","unknown: ", minor_str[id->minor_rev_num]);
1443                 if (id->major_rev_num < 31)
1444                 {
1445                         for (i=0; i <= 15; i++)
1446                                 if_printf((id->major_rev_num & (1<<i))," %u", i);
1447                 }
1448         }
1449 #endif /* __NEW_HD_DRIVE_ID */
1450         printf("\n\n * signifies the current active mode\n\n");
1451 }
1452 #endif
1453
1454 static void flush_buffer_cache (int fd)
1455 {
1456         fsync (fd);                             /* flush buffers */
1457         bb_ioctl(fd, BLKFLSBUF, NULL,"BLKFLSBUF" ) ;/* do it again, big time */
1458 #ifdef HDIO_DRIVE_CMD
1459         sleep(1);
1460         if (ioctl(fd, HDIO_DRIVE_CMD, NULL) && errno != EINVAL) /* await completion */
1461                         bb_perror_msg("HDIO_DRIVE_CMD");
1462 #endif
1463 }
1464
1465 static int seek_to_zero (int fd)
1466 {
1467         if (lseek(fd, (off_t) 0, SEEK_SET))
1468                 return 1;
1469         return 0;
1470 }
1471
1472 static int read_big_block (int fd, char *buf)
1473 {
1474
1475         const char *string;
1476         int i, rc;
1477         if ((rc = read(fd, buf, TIMING_BUF_BYTES)) != TIMING_BUF_BYTES)
1478         {
1479                 switch(rc)
1480                 {
1481                         case -1:
1482                                 string = "read()";
1483                                 break;
1484                         case  0:
1485                                 string = "read() hit EOF - device too small";
1486                                 break;
1487                         default:
1488                                 string = "read(%u) returned %u bytes";
1489                 }
1490                 bb_error_msg(string, TIMING_BUF_BYTES, rc);
1491                 return 1;
1492         }
1493
1494         /* access all sectors of buf to ensure the read fully completed */
1495         for (i = 0; i < TIMING_BUF_BYTES; i += 512)
1496                 buf[i] &= 1;
1497         return 0;
1498 }
1499
1500 static double correction = 0.0;
1501
1502 static void do_time (int flag, int fd)
1503 /*
1504         flag = 0 time_cache
1505         flag = 1 time_device
1506 */
1507 {
1508         int i;
1509         char *buf;
1510         double elapsed;
1511         struct itimerval e1, e2;
1512         int shmid;
1513         int timing_MB = TIMING_MB;
1514
1515         if ((shmid = shmget(IPC_PRIVATE, TIMING_BUF_BYTES, 0600)) == -1)
1516         {
1517                 bb_error_msg (bb_msg_shared_mem,"allocate"); /*"could not allocate sharedmem buf"*/
1518                 return;
1519         }
1520         if (shmctl(shmid, SHM_LOCK, NULL) == -1)
1521         {
1522                 bb_error_msg (bb_msg_shared_mem,"lock"); /*"could not lock sharedmem buf"*/
1523                 (void) shmctl(shmid, IPC_RMID, NULL);
1524                 return;
1525         }
1526         if ((buf = shmat(shmid, (char *) 0, 0)) == (char *) -1)
1527         {
1528                 bb_error_msg (bb_msg_shared_mem,"attach"); /*"could not attach sharedmem buf"*/
1529                 (void) shmctl(shmid, IPC_RMID, NULL);
1530                 return;
1531         }
1532         if (shmctl(shmid, IPC_RMID, NULL) == -1)
1533                 bb_error_msg ("shmctl(,IPC_RMID,)");
1534
1535         /* Clear out the device request queues & give them time to complete */
1536         sync_and_sleep(3);
1537
1538         if(flag  == 0) /* Time cache */
1539         {
1540                 /* Calculate a correction factor for the basic
1541                 * overhead of doing a read() from the buffer cache.
1542                 * To do this, we read the data once to "cache it" and
1543                 * to force full preallocation of our timing buffer,
1544                 * and then we re-read it 10 times while timing it.
1545                 *
1546                 * getitimer() is used rather than gettimeofday() because
1547                 * it is much more consistent (on my machine, at least).
1548                 */
1549                 setitimer(ITIMER_REAL, &(struct itimerval){{1000,0},{1000,0}}, NULL);
1550                 if (seek_to_zero (fd))
1551                         return;
1552                 if (read_big_block (fd, buf))
1553                         return;
1554                 printf(" Timing buffer-cache reads:   ");
1555                 fflush(stdout);
1556
1557                 /* Clear out the device request queues & give them time to complete */
1558                 sync_and_sleep(1);
1559
1560                 /* Time re-reading from the buffer-cache */
1561                 getitimer(ITIMER_REAL, &e1);
1562                 for (i = (BUFCACHE_FACTOR * TIMING_BUF_COUNT) ; i > 0; --i)
1563                 {
1564                         if (seek_to_zero (fd))
1565                                 goto quit;
1566                         if (read_big_block (fd, buf))
1567                                 goto quit;
1568                 }
1569                 getitimer(ITIMER_REAL, &e2);
1570                 correction = (e1.it_value.tv_sec - e2.it_value.tv_sec) + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1571
1572                 /* Now remove the lseek() from the correction factor */
1573                 getitimer(ITIMER_REAL, &e1);
1574                 for (i = (BUFCACHE_FACTOR * TIMING_BUF_COUNT) ; i > 0; --i)
1575                 {
1576                         if (seek_to_zero (fd))
1577                                 goto quit;
1578                 }
1579                 getitimer(ITIMER_REAL, &e2);
1580                 correction -= (e1.it_value.tv_sec - e2.it_value.tv_sec)
1581                 + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1582
1583                 if ((BUFCACHE_FACTOR * timing_MB) >= correction)  /* more than 1MB/s */
1584                         printf("%2d MB in %5.2f seconds =%6.2f MB/sec\n",
1585                                 (BUFCACHE_FACTOR * timing_MB),  correction,
1586                                 (BUFCACHE_FACTOR * timing_MB) / correction);
1587                 else
1588                         printf("%2d MB in %5.2f seconds =%6.2f kB/sec\n",
1589                                 (BUFCACHE_FACTOR * timing_MB),  correction,
1590                                 (BUFCACHE_FACTOR * timing_MB) / correction * 1024);
1591                 correction /= BUFCACHE_FACTOR;
1592
1593                 flush_buffer_cache(fd);
1594                 sleep(1);
1595         }
1596         else /* Time device */
1597         {
1598                 printf(" Timing buffered disk reads:  ");
1599                 fflush(stdout);
1600
1601                 /*
1602                 * getitimer() is used rather than gettimeofday() because
1603                 * it is much more consistent (on my machine, at least).
1604                 */
1605                 setitimer(ITIMER_REAL, &(struct itimerval){{1000,0},{1000,0}}, NULL);
1606
1607                 /* Now do the timings for real */
1608                 getitimer(ITIMER_REAL, &e1);
1609                 for (i = TIMING_BUF_COUNT; i > 0; --i)
1610                 {
1611                         if (read_big_block (fd, buf))
1612                                 goto quit;
1613                 }
1614                 getitimer(ITIMER_REAL, &e2);
1615
1616                 elapsed =       (e1.it_value.tv_sec - e2.it_value.tv_sec) + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1617
1618                 if (timing_MB >= elapsed)  /* more than 1MB/s */
1619                         printf("%2d MB in %5.2f seconds =%6.2f MB/sec\n",timing_MB, elapsed, timing_MB / elapsed);
1620                 else
1621                         printf("%2d MB in %5.2f seconds =%6.2f kB/sec\n",timing_MB, elapsed, timing_MB / elapsed * 1024);
1622
1623                 /*"Hmm.. suspicious results: probably not enough free memory for a proper test.");*/
1624                 if (elapsed <= (correction * 2))
1625                                         bb_error_msg(bb_msg_memory_exhausted);
1626
1627 #if 0  /* the "estimate" is just plain wrong for many systems.. */
1628                 else if (correction != 0.0) {
1629                         printf(" Estimating raw driver speed: ");
1630                         elapsed -= correction;
1631                         if (timing_MB >= elapsed)  /* more than 1MB/s */
1632                                 printf("%2d MB in %5.2f seconds =%6.2f MB/sec\n",
1633                                         timing_MB, elapsed, timing_MB / elapsed);
1634                         else
1635                                 printf("%2d MB in %5.2f seconds =%6.2f kB/sec\n",
1636                                         timing_MB, elapsed, timing_MB / elapsed * 1024);
1637                 }
1638 #endif
1639         }
1640 quit:
1641         if (-1 == shmdt(buf))
1642                 bb_error_msg (bb_msg_shared_mem,"detach"); /*"could not detach sharedmem buf"*/
1643 }
1644
1645
1646 static void no_scsi (void)
1647 {
1648         /*" operation not supported on SCSI disks"*/
1649         if (is_scsi_hd)
1650                 bb_error_msg_and_die(bb_msg_op_not_supp,"SCSI");
1651 }
1652
1653 static void no_xt (void)
1654 {
1655         if (is_xt_hd)
1656                 bb_error_msg_and_die(bb_msg_op_not_supp,"XT");
1657 }
1658
1659 static void on_off (unsigned int value)
1660 {
1661         printf(value ? " (on)\n" : " (off)\n");
1662 }
1663
1664 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1665 static void bus_state_value (unsigned int value)
1666 {
1667         const char *string;
1668
1669         switch (value)
1670         {
1671                 case BUSSTATE_ON:
1672                         string = " (on)\n";
1673                         break;
1674                 case BUSSTATE_OFF:
1675                         string = " (off)\n";
1676                         break;
1677                 case BUSSTATE_TRISTATE:
1678                         string = " (tristate)\n";
1679                         break;
1680                 default:
1681                         string = " (unknown: %d)\n";
1682                         break;
1683         }
1684         printf(string, value);
1685 }
1686 #endif
1687
1688 #ifdef HDIO_DRIVE_CMD
1689 static void interpret_standby (unsigned int standby)
1690 {
1691         printf(" (");
1692         switch(standby)
1693         {
1694                 case 0:
1695                         printf("off");
1696                         break;
1697                 case 252:
1698                         printf("21 minutes");
1699                         break;
1700                 case 253:
1701                         printf("vendor-specific");
1702                         break;
1703                 case 254:
1704                         printf("?reserved");
1705                         break;
1706                 case 255:
1707                         printf("21 minutes + 15 seconds");
1708                         break;
1709                 default:
1710                         if (standby <= 240)
1711                         {
1712                                 unsigned int secs = standby * 5;
1713                                 unsigned int mins = secs / 60;
1714                                 secs %= 60;
1715                                 if_printf(mins,"%u minutes", mins);
1716                                 if_printf((mins && secs)," + ");
1717                                 if_printf(secs,"%u seconds", secs);
1718                         }
1719                         else if (standby <= 251)
1720                         {
1721                                 unsigned int mins = (standby - 240) * 30;
1722                                 unsigned int hrs  = mins / 60;
1723                                 mins %= 60;
1724                                 if_printf(hrs,"%u hours", hrs);
1725                                 if_printf((hrs && mins)," + ");
1726                                 if_printf(mins,"%u minutes", mins);
1727                         }
1728                         else
1729                                 printf("illegal value");
1730                         break;
1731         }
1732         printf(")\n");
1733 }
1734
1735 struct xfermode_entry {
1736     int val;
1737     const char *name;
1738 };
1739
1740 static const struct xfermode_entry xfermode_table[] = {
1741     { 8,    "pio0" },
1742     { 9,    "pio1" },
1743     { 10,   "pio2" },
1744     { 11,   "pio3" },
1745     { 12,   "pio4" },
1746     { 13,   "pio5" },
1747     { 14,   "pio6" },
1748     { 15,   "pio7" },
1749     { 16,   "sdma0" },
1750     { 17,   "sdma1" },
1751     { 18,   "sdma2" },
1752     { 19,   "sdma3" },
1753     { 20,   "sdma4" },
1754     { 21,   "sdma5" },
1755     { 22,   "sdma6" },
1756     { 23,   "sdma7" },
1757     { 32,   "mdma0" },
1758     { 33,   "mdma1" },
1759     { 34,   "mdma2" },
1760     { 35,   "mdma3" },
1761     { 36,   "mdma4" },
1762     { 37,   "mdma5" },
1763     { 38,   "mdma6" },
1764     { 39,   "mdma7" },
1765     { 64,   "udma0" },
1766     { 65,   "udma1" },
1767     { 66,   "udma2" },
1768     { 67,   "udma3" },
1769     { 68,   "udma4" },
1770     { 69,   "udma5" },
1771     { 70,   "udma6" },
1772     { 71,   "udma7" },
1773     { 0, NULL }
1774 };
1775
1776 static int translate_xfermode(char * name)
1777 {
1778         const struct xfermode_entry *tmp;
1779         char *endptr;
1780         int val = -1;
1781
1782
1783         for (tmp = xfermode_table; tmp->name != NULL; ++tmp)
1784         {
1785                 if (!strcmp(name, tmp->name))
1786                         return tmp->val;
1787
1788         }
1789
1790         val = strtol(name, &endptr, 10);
1791         if (*endptr == '\0')
1792                 return val;
1793
1794         return -1;
1795 }
1796
1797 static void interpret_xfermode (unsigned int xfermode)
1798 {
1799         printf(" (");
1800         switch(xfermode) {
1801                 case 0:
1802                         printf("default PIO mode");
1803                         break;
1804                 case 1:
1805                         printf("default PIO mode, disable IORDY");
1806                         break;
1807                 case 8:
1808                 case 9:
1809                 case 10:
1810                 case 11:
1811                 case 12:
1812                 case 13:
1813                 case 14:
1814                 case 15:
1815                         printf("PIO flow control mode%u", xfermode-8);
1816                         break;
1817                 case 16:
1818                 case 17:
1819                 case 18:
1820                 case 19:
1821                 case 20:
1822                 case 21:
1823                 case 22:
1824                 case 23:
1825                         printf("singleword DMA mode%u", xfermode-16);
1826                         break;
1827                 case 32:
1828                 case 33:
1829                 case 34:
1830                 case 35:
1831                 case 36:
1832                 case 37:
1833                 case 38:
1834                 case 39:
1835                         printf("multiword DMA mode%u", xfermode-32);
1836                         break;
1837                 case 64:
1838                 case 65:
1839                 case 66:
1840                 case 67:
1841                 case 68:
1842                 case 69:
1843                 case 70:
1844                 case 71:
1845                         printf("UltraDMA mode%u", xfermode-64);
1846                         break;
1847                 default:
1848                         printf("unknown, probably not valid");
1849                         break;
1850         }
1851         printf(")\n");
1852 }
1853 #endif /* HDIO_DRIVE_CMD */
1854
1855 #ifndef VXVM_MAJOR
1856 #define VXVM_MAJOR 199
1857 #endif
1858
1859 #ifndef CCISS_MAJOR
1860 #define CCISS_MAJOR 104
1861 #endif
1862
1863 static void process_dev (char *devname)
1864 {
1865         int fd;
1866         static long parm, multcount;
1867         struct stat stat_buf;
1868 #ifndef HDIO_DRIVE_CMD
1869         int force_operation = 0;
1870 #endif
1871         if (stat(devname,&stat_buf))
1872                 bb_perror_msg_and_die(devname);
1873
1874         switch(major(stat_buf.st_rdev))
1875         {
1876 #ifdef SCSI_DISK0_MAJOR
1877                 case (SCSI_DISK0_MAJOR):
1878                 case (SCSI_DISK1_MAJOR):
1879                 case (SCSI_DISK2_MAJOR):
1880                 case (SCSI_DISK3_MAJOR):
1881                 case (SCSI_DISK4_MAJOR):
1882                 case (SCSI_DISK5_MAJOR):
1883                 case (SCSI_DISK6_MAJOR):
1884                 case (SCSI_DISK7_MAJOR):
1885 #else
1886                 case (SCSI_DISK_MAJOR):
1887 #endif
1888 #ifdef MD_MAJOR
1889                 case (MD_MAJOR):
1890 #endif
1891                 case (VXVM_MAJOR):
1892 #ifdef LVM_BLK_MAJOR
1893                 case (LVM_BLK_MAJOR):
1894 #endif
1895                 case (CCISS_MAJOR):
1896                         is_scsi_hd = 1;
1897                         break;
1898 #ifdef XT_DISK_MAJOR
1899                 case (XT_DISK_MAJOR):
1900                         is_xt_hd = 1;
1901                         break;
1902 #endif
1903                 case IDE0_MAJOR:
1904                 case IDE1_MAJOR:
1905 #ifdef IDE2_MAJOR
1906                 case IDE2_MAJOR:
1907 #endif
1908 #ifdef IDE3_MAJOR
1909                 case IDE3_MAJOR:
1910 #endif
1911 #ifdef IDE4_MAJOR
1912                 case IDE4_MAJOR:
1913 #endif
1914 #ifdef IDE5_MAJOR
1915                 case IDE5_MAJOR:
1916 #endif
1917 #ifdef IDE6_MAJOR
1918                 case IDE6_MAJOR:
1919 #endif
1920 #ifdef IDE7_MAJOR
1921                 case IDE7_MAJOR:
1922 #endif
1923 #ifdef IDE8_MAJOR
1924                 case IDE8_MAJOR:
1925 #endif
1926 #ifdef IDE9_MAJOR
1927                 case IDE9_MAJOR:
1928 #endif
1929                         break;  /* do nothing */
1930                 default:
1931                         bb_error_msg_and_die("%s not supported",devname);
1932         }
1933
1934         fd = bb_xopen (devname, O_RDONLY|O_NONBLOCK);
1935         if_printf( (!quiet),"\n%s:\n", devname);
1936
1937         if (set_readahead)
1938         {
1939                 if_printf(get_readahead," setting fs readahead to %ld\n", Xreadahead);
1940                 bb_ioctl(fd, BLKRASET,(int *)Xreadahead,"BLKRASET");
1941         }
1942 #ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
1943         if (unregister_hwif)
1944         {
1945                 no_scsi();
1946                 printf(" attempting to unregister hwif#%u\n", hwif);
1947                 bb_ioctl(fd, HDIO_UNREGISTER_HWIF,(int *)hwif,"HDIO_UNREGISTER_HWIF");
1948         }
1949 #endif
1950 #ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
1951         if (scan_hwif)
1952         {
1953                 int     args[3];
1954                 no_scsi();
1955                 printf(" attempting to scan hwif (0x%x, 0x%x, %u)\n", hwif_data, hwif_ctrl, hwif_irq);
1956                 args[0] = hwif_data;
1957                 args[1] = hwif_ctrl;
1958                 args[2] = hwif_irq;
1959                 bb_ioctl(fd, HDIO_SCAN_HWIF, args, "HDIO_SCAN_HWIF");
1960         }
1961 #endif
1962         if (set_piomode)
1963         {
1964                 no_scsi();
1965                 no_xt();
1966
1967                 if (noisy_piomode)
1968                 {
1969                         printf(" attempting to ");
1970                         if (piomode == 255)
1971                                 printf("auto-tune PIO mode\n");
1972                         else if (piomode < 100)
1973                                 printf("set PIO mode to %d\n", piomode);
1974                         else if (piomode < 200)
1975                                 printf("set MDMA mode to %d\n", (piomode-100));
1976                         else
1977                                 printf("set UDMA mode to %d\n", (piomode-200));
1978                 }
1979                 bb_ioctl(fd, HDIO_SET_PIO_MODE, (int *)piomode, "HDIO_SET_PIO_MODE");
1980         }
1981         if (set_io32bit)
1982         {
1983                 no_scsi();
1984                 no_xt();
1985                 if_printf(get_io32bit," setting 32-bit IO_support flag to %ld\n", io32bit);
1986                 bb_ioctl(fd, HDIO_SET_32BIT, (int *)io32bit, "HDIO_SET_32BIT");
1987         }
1988         if (set_mult)
1989         {
1990                 no_scsi();
1991                 no_xt();
1992                 if_printf(get_mult, " setting multcount to %ld\n", mult);
1993                 if(ioctl(fd, HDIO_SET_MULTCOUNT, mult))
1994                         bb_perror_msg("HDIO_SET_MULTCOUNT");
1995 #ifndef HDIO_DRIVE_CMD
1996                 else
1997                         force_operation = 1;
1998 #endif
1999         }
2000         if (set_readonly)
2001         {
2002                 if_printf_on_off(get_readonly," setting readonly to %ld", readonly);
2003                 bb_ioctl(fd, BLKROSET, &readonly, "BLKROSET");
2004         }
2005         if (set_unmask)
2006         {
2007                 no_scsi();
2008                 no_xt();
2009                 if_printf_on_off(get_unmask," setting unmaskirq to %ld", unmask);
2010                 bb_ioctl(fd, HDIO_SET_UNMASKINTR, (int *)unmask, "HDIO_SET_UNMASKINTR");
2011         }
2012 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
2013         if (set_dma)
2014         {
2015                 no_scsi();
2016                 if_printf_on_off(get_dma," setting using_dma to %ld", dma);
2017                 bb_ioctl(fd, HDIO_SET_DMA, (int *)dma, "HDIO_SET_DMA");
2018         }
2019 #endif /* CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA */
2020         if (set_dma_q)
2021         {
2022                 no_scsi();
2023                 if_printf_on_off(get_dma_q," setting DMA queue_depth to %ld", dma_q);
2024                 bb_ioctl(fd, HDIO_SET_QDMA, (int *)dma_q, "HDIO_SET_QDMA");
2025         }
2026         if (set_nowerr)
2027         {
2028                 no_scsi();
2029                 no_xt();
2030                 if_printf_on_off(get_nowerr," setting nowerr to %ld", nowerr);
2031                 bb_ioctl(fd, HDIO_SET_NOWERR, (int *)nowerr,"HDIO_SET_NOWERR");
2032         }
2033         if (set_keep)
2034         {
2035                 no_scsi();
2036                 no_xt();
2037                 if_printf_on_off(get_keep," setting keep_settings to %ld", keep);
2038                 bb_ioctl(fd, HDIO_SET_KEEPSETTINGS, (int *)keep,"HDIO_SET_KEEPSETTINGS");
2039         }
2040 #ifdef HDIO_DRIVE_CMD
2041         if (set_doorlock)
2042         {
2043                 unsigned char args[4] = {0,0,0,0};
2044                 no_scsi();
2045                 no_xt();
2046
2047                 args[0] = doorlock ? WIN_DOORLOCK : WIN_DOORUNLOCK;
2048                 if_printf_on_off(get_doorlock," setting drive doorlock to %ld", doorlock);
2049                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(doorlock)");
2050         }
2051         if (set_dkeep)
2052         {
2053                 /* lock/unlock the drive's "feature" settings */
2054                 unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
2055                 no_scsi();
2056                 no_xt();
2057
2058                 if_printf_on_off(get_dkeep," setting drive keep features to %ld", dkeep);
2059                 args[2] = dkeep ? 0x66 : 0xcc;
2060                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(keepsettings)");
2061         }
2062         if (set_defects)
2063         {
2064                 unsigned char args[4] = {WIN_SETFEATURES,0,0x04,0};
2065                 no_scsi();
2066                 args[2] = defects ? 0x04 : 0x84;
2067                 if_printf(get_defects," setting drive defect-mgmt to %ld\n", defects);
2068                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(defectmgmt)");
2069         }
2070         if (set_prefetch)
2071         {
2072                 unsigned char args[4] = {WIN_SETFEATURES,0,0xab,0};
2073                 no_scsi();
2074                 no_xt();
2075
2076                 args[1] = prefetch;
2077                 if_printf(get_prefetch," setting drive prefetch to %ld\n", prefetch);
2078                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setprefetch)");
2079         }
2080         if (set_xfermode)
2081         {
2082                 unsigned char args[4] = {WIN_SETFEATURES,0,3,0};
2083                 no_scsi();
2084                 no_xt();
2085
2086                 args[1] = xfermode_requested;
2087                 if (get_xfermode)
2088                 {
2089                         printf(" setting xfermode to %d", xfermode_requested);
2090                         interpret_xfermode(xfermode_requested);
2091                 }
2092                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(setxfermode)");
2093         }
2094         if (set_lookahead)
2095         {
2096                 unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
2097                 no_scsi();
2098                 no_xt();
2099
2100                 args[2] = lookahead ? 0xaa : 0x55;
2101                 if_printf_on_off(get_lookahead," setting drive read-lookahead to %ld", lookahead);
2102                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setreadahead)");
2103         }
2104         if (set_apmmode)
2105         {
2106                 unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
2107                 no_scsi();
2108                 apmmode=check_if_min_and_set_val(apmmode,1);
2109                 apmmode=check_if_maj_and_set_val(apmmode,255);
2110                 if_printf(get_apmmode," setting APM level to");
2111                 if (apmmode==255)
2112                 {
2113                         /* disable Advanced Power Management */
2114                         args[2] = 0x85; /* feature register */
2115                         if_printf(get_apmmode," disabled\n");
2116                 }
2117                 else
2118                 {
2119                         /* set Advanced Power Management mode */
2120                         args[2] = 0x05; /* feature register */
2121                         args[1] = apmmode; /* sector count register */
2122                         if_printf(get_apmmode," 0x%02lX (%ld)\n",apmmode,apmmode);
2123                 }
2124                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD");
2125         }
2126         if (set_wcache)
2127         {
2128 #ifdef DO_FLUSHCACHE
2129 #ifndef WIN_FLUSHCACHE
2130 #define WIN_FLUSHCACHE 0xe7
2131 #endif
2132                 unsigned char flushcache[4] = {WIN_FLUSHCACHE,0,0,0};
2133 #endif /* DO_FLUSHCACHE */
2134                 unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
2135                 no_scsi();
2136                 no_xt();
2137                 args[2] = wcache ? 0x02 : 0x82;
2138                 if_printf_on_off(get_wcache," setting drive write-caching to %ld", wcache);
2139 #ifdef DO_FLUSHCACHE
2140                 if (!wcache && ioctl(fd, HDIO_DRIVE_CMD, &flushcache))
2141                         bb_perror_msg ("HDIO_DRIVE_CMD(flushcache)");
2142 #endif /* DO_FLUSHCACHE */
2143                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setcache)");
2144 #ifdef DO_FLUSHCACHE
2145                 if (!wcache && ioctl(fd, HDIO_DRIVE_CMD, &flushcache))
2146                         bb_perror_msg ("HDIO_DRIVE_CMD(flushcache)");
2147 #endif /* DO_FLUSHCACHE */
2148         }
2149         if (set_standbynow)
2150         {
2151 #ifndef WIN_STANDBYNOW1
2152 #define WIN_STANDBYNOW1 0xE0
2153 #endif
2154 #ifndef WIN_STANDBYNOW2
2155 #define WIN_STANDBYNOW2 0x94
2156 #endif
2157                 unsigned char args1[4] = {WIN_STANDBYNOW1,0,0,0};
2158                 unsigned char args2[4] = {WIN_STANDBYNOW2,0,0,0};
2159                 no_scsi();
2160                 if_printf(get_standbynow," issuing standby command\n");
2161                 if (ioctl(fd, HDIO_DRIVE_CMD, &args1)
2162                  && ioctl(fd, HDIO_DRIVE_CMD, &args2))
2163                         bb_perror_msg("HDIO_DRIVE_CMD(standby)");
2164         }
2165         if (set_sleepnow)
2166         {
2167 #ifndef WIN_SLEEPNOW1
2168 #define WIN_SLEEPNOW1 0xE6
2169 #endif
2170 #ifndef WIN_SLEEPNOW2
2171 #define WIN_SLEEPNOW2 0x99
2172 #endif
2173                 unsigned char args1[4] = {WIN_SLEEPNOW1,0,0,0};
2174                 unsigned char args2[4] = {WIN_SLEEPNOW2,0,0,0};
2175                 no_scsi();
2176                 if_printf(get_sleepnow," issuing sleep command\n");
2177                 if (ioctl(fd, HDIO_DRIVE_CMD, &args1)
2178                  && ioctl(fd, HDIO_DRIVE_CMD, &args2))
2179                         bb_perror_msg("HDIO_DRIVE_CMD(sleep)");
2180         }
2181         if (set_seagate)
2182         {
2183                 unsigned char args[4] = {0xfb,0,0,0};
2184                 no_scsi();
2185                 no_xt();
2186                 if_printf(get_seagate," disabling Seagate auto powersaving mode\n");
2187                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(seagatepwrsave)");
2188         }
2189         if (set_standby)
2190         {
2191                 unsigned char args[4] = {WIN_SETIDLE1,standby_requested,0,0};
2192                 no_scsi();
2193                 no_xt();
2194                 if (get_standby)
2195                 {
2196                         printf(" setting standby to %lu", standby_requested);
2197                         interpret_standby(standby_requested);
2198                 }
2199                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setidle1)");
2200         }
2201 #else   /* HDIO_DRIVE_CMD */
2202         if (force_operation)
2203         {
2204                 char buf[512];
2205                 flush_buffer_cache(fd);
2206                 if (-1 == read(fd, buf, sizeof(buf)))
2207                         bb_error_msg("access failed");
2208         }
2209 #endif  /* HDIO_DRIVE_CMD */
2210
2211         if (!flagcount)
2212                 verbose = 1;
2213
2214         if ((verbose && !is_scsi_hd && !is_xt_hd) || get_mult || get_identity)
2215         {
2216                 no_scsi();
2217                 multcount = -1;
2218                 if (ioctl(fd, HDIO_GET_MULTCOUNT, &multcount))
2219                 {
2220                         if ((verbose && !is_xt_hd) || get_mult)
2221                                 bb_perror_msg("HDIO_GET_MULTCOUNT");
2222                 }
2223                 else if (verbose | get_mult)
2224                 {
2225                         printf(" multcount    = %2ld", multcount);
2226                         on_off(multcount);
2227                 }
2228         }
2229         if ((verbose && !is_scsi_hd && !is_xt_hd) || get_io32bit)
2230         {
2231                 no_scsi();
2232                 no_xt();
2233                 if(ioctl(fd, HDIO_GET_32BIT, &parm))
2234                         bb_perror_msg("HDIO_GET_32BIT");
2235                 else
2236                 {
2237                         printf(" IO_support   =%3ld (", parm);
2238                         switch (parm)
2239                         {
2240                                 case 0:
2241                                         printf("default ");
2242                                 case 2:
2243                                         printf("16-bit)\n");
2244                                         break;
2245                                 case 1:
2246                                         printf("32-bit)\n");
2247                                         break;
2248                                 case 3:
2249                                         printf("32-bit w/sync)\n");
2250                                         break;
2251                                 case 8:
2252                                         printf("Request-Queue-Bypass)\n");
2253                                         break;
2254                                 default:
2255                                         printf("\?\?\?)\n");
2256                                 /*esac*/
2257                         }
2258                 }
2259         }
2260         if ((verbose && !is_scsi_hd && !is_xt_hd) || get_unmask)
2261         {
2262                 no_scsi();
2263                 no_xt();
2264                 bb_ioctl_on_off(fd, HDIO_GET_UNMASKINTR,(unsigned long *)parm,
2265                                                 "HDIO_GET_UNMASKINTR"," unmaskirq    = %2ld");
2266         }
2267
2268
2269 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
2270         if ((verbose && !is_scsi_hd) || get_dma) {
2271                 no_scsi();
2272                 if(ioctl(fd, HDIO_GET_DMA, &parm))
2273                         bb_perror_msg("HDIO_GET_DMA");
2274                 else
2275                 {
2276                         printf(" using_dma    = %2ld", parm);
2277                         if (parm == 8)
2278                                 printf(" (DMA-Assisted-PIO)\n");
2279                         else
2280                                 on_off(parm);
2281                 }
2282         }
2283 #endif
2284         if (get_dma_q)
2285         {
2286                 no_scsi();
2287                 bb_ioctl_on_off (fd, HDIO_GET_QDMA,(unsigned long *)parm,
2288                                                   "HDIO_GET_QDMA"," queue_depth  = %2ld");
2289         }
2290         if ((verbose && !is_scsi_hd && !is_xt_hd) || get_keep)
2291         {
2292                 no_scsi();
2293                 no_xt();
2294                 bb_ioctl_on_off (fd, HDIO_GET_KEEPSETTINGS,(unsigned long *)parm,
2295                                                         "HDIO_GET_KEEPSETTINGS"," keepsettings = %2ld");
2296         }
2297
2298         if (get_nowerr)
2299         {
2300                 no_scsi();
2301                 no_xt();
2302                 bb_ioctl_on_off  (fd, HDIO_GET_NOWERR,(unsigned long *)&parm,
2303                                                         " HDIO_GET_NOWERR"," nowerr       = %2ld");
2304         }
2305         if (verbose || get_readonly)
2306         {
2307                 bb_ioctl_on_off(fd, BLKROGET,(unsigned long *)parm,
2308                                                   " BLKROGET"," readonly     = %2ld");
2309         }
2310         if ((verbose && !is_scsi_hd) || get_readahead)
2311         {
2312                 bb_ioctl_on_off (fd, BLKRAGET, (unsigned long *) parm,
2313                                                         " BLKRAGET"," readahead    = %2ld");
2314         }
2315         if (verbose || get_geom)
2316         {
2317                 static const char msg[] = " geometry     = %u/%u/%u, sectors = %ld, start = %ld\n";
2318                 static struct hd_geometry g;
2319 #ifdef HDIO_GETGEO_BIG
2320                 static struct hd_big_geometry bg;
2321 #endif
2322
2323                 if (ioctl(fd, BLKGETSIZE, &parm))
2324                         bb_perror_msg("BLKGETSIZE");
2325 #ifdef HDIO_GETGEO_BIG
2326                 else if (!ioctl(fd, HDIO_GETGEO_BIG, &bg))
2327                         printf(msg, bg.cylinders, bg.heads, bg.sectors, parm, bg.start);
2328 #endif
2329                 else if (ioctl(fd, HDIO_GETGEO, &g))
2330                         bb_perror_msg("HDIO_GETGEO");
2331                 else
2332                         printf(msg, g.cylinders, g.heads, g.sectors, parm, g.start);
2333         }
2334 #ifdef HDIO_DRIVE_CMD
2335         if (get_powermode)
2336         {
2337 #ifndef WIN_CHECKPOWERMODE1
2338 #define WIN_CHECKPOWERMODE1 0xE5
2339 #endif
2340 #ifndef WIN_CHECKPOWERMODE2
2341 #define WIN_CHECKPOWERMODE2 0x98
2342 #endif
2343                 unsigned char args[4] = {WIN_CHECKPOWERMODE1,0,0,0};
2344                 const char *state;
2345                 no_scsi();
2346                 if (ioctl(fd, HDIO_DRIVE_CMD, &args)
2347                          && (args[0] = WIN_CHECKPOWERMODE2) /* try again with 0x98 */
2348                         && ioctl(fd, HDIO_DRIVE_CMD, &args))
2349                 {
2350                         if (errno != EIO || args[0] != 0 || args[1] != 0)
2351                                 state = "unknown";
2352                         else
2353                                 state = "sleeping";
2354                 }
2355                 else
2356                         state = (args[2] == 255) ? "active/idle" : "standby";
2357
2358                 printf(" drive state is:  %s\n", state);
2359         }
2360 #endif
2361 #ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
2362         if (perform_reset)
2363         {
2364                 no_scsi();
2365                 no_xt();
2366                 bb_ioctl(fd, HDIO_DRIVE_RESET, NULL, "HDIO_DRIVE_RESET");
2367         }
2368 #endif /* CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET */
2369 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
2370         if (perform_tristate)
2371         {
2372                 unsigned char args[4] = {0,tristate,0,0};
2373                 no_scsi();
2374                 no_xt();
2375                 bb_ioctl(fd, HDIO_TRISTATE_HWIF, &args, "HDIO_TRISTATE_HWIF");
2376         }
2377 #endif /* CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
2378 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
2379         if (get_identity)
2380         {
2381                 static struct hd_driveid id;
2382
2383                 no_scsi();
2384                 no_xt();
2385
2386                 if (!ioctl(fd, HDIO_GET_IDENTITY, &id))
2387                 {
2388                         if (multcount != -1)
2389                         {
2390                                 id.multsect = multcount;
2391                                 id.multsect_valid |= 1;
2392                         }
2393                         else
2394                                 id.multsect_valid &= ~1;
2395                         dump_identity(&id);
2396                 }
2397                 else if (errno == -ENOMSG)
2398                         printf(" no identification info available\n");
2399                 else
2400                         bb_perror_msg("HDIO_GET_IDENTITY");
2401         }
2402
2403         if (get_IDentity)
2404         {
2405                 unsigned char args[4+512] = {WIN_IDENTIFY,0,0,1,};
2406                 unsigned i;
2407
2408                 no_scsi();
2409                 no_xt();
2410
2411                 if (ioctl(fd, HDIO_DRIVE_CMD, &args))
2412                 {
2413                         args[0] = WIN_PIDENTIFY;
2414                         if (ioctl(fd, HDIO_DRIVE_CMD, &args))
2415                         {
2416                                 bb_perror_msg("HDIO_DRIVE_CMD(identify)");
2417                                 goto identify_abort;
2418                         }
2419                 }
2420                 for(i=0; i<(sizeof args)/2; i+=2)
2421                     __le16_to_cpus((uint16_t *)(&args[i]));
2422
2423                 identify((void *)&args[4], NULL);
2424 identify_abort:
2425         /* VOID */;
2426         }
2427 #endif
2428 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
2429         if (set_busstate)
2430         {
2431                 no_scsi();
2432                 if (get_busstate)
2433                 {
2434                         printf(" setting bus state to %d", busstate);
2435                         bus_state_value(busstate);
2436                 }
2437                 bb_ioctl(fd, HDIO_SET_BUSSTATE, (int *)busstate, "HDIO_SET_BUSSTATE");
2438         }
2439 #endif
2440 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
2441         if (get_busstate)
2442         {
2443                 no_scsi();
2444                 if (ioctl(fd, HDIO_GET_BUSSTATE, &parm))
2445                         bb_perror_msg("HDIO_GET_BUSSTATE");
2446                 else
2447                 {
2448                         printf(" busstate     = %2ld", parm);
2449                         bus_state_value(parm);
2450                 }
2451         }
2452 #endif
2453         if (reread_partn)
2454                 bb_ioctl(fd, BLKRRPART, NULL, "BLKRRPART");
2455
2456
2457         if (do_ctimings)
2458                 do_time(0,fd);          /*time cache  */
2459         if (do_timings)
2460                 do_time(1,fd);          /*time device */
2461         if (do_flush)
2462                 flush_buffer_cache (fd);
2463         close (fd);
2464 }
2465
2466 static char * GET_NUMBER(char *p, unsigned long *flag, unsigned long *num)
2467 {
2468         *num = 0;
2469         while (isdigit(*p)) {
2470                 *flag = 1;
2471                 *num = (*num * 10) + (*p++ - '0');
2472         }
2473         return p;
2474 }
2475
2476 static char * GET_STRING(char *p, unsigned long *flag, int *num)
2477 {
2478         char *tmpstr;
2479         char name[32];
2480         tmpstr = name;
2481         tmpstr[0] = '\0';
2482         while (isalnum(*p) && (tmpstr - name) < 31) {
2483                 tmpstr[0] = *p++;
2484                 tmpstr[1] = '\0';
2485                 ++tmpstr;
2486         }
2487         *num = translate_xfermode(name);
2488         if (*num == -1)
2489                 *flag = 0;
2490         else
2491                 *flag = 1;
2492         return p;
2493 }
2494
2495 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
2496 static int fromhex (unsigned char c)
2497 {
2498         if (c >= 'a' && c <= 'f')
2499                 return 10 + (c - 'a');
2500         if (c >= '0' && c <= '9')
2501                 return (c - '0');
2502         bb_error_msg_and_die("bad char: '%c' 0x%02x", c, c);
2503 }
2504
2505 static int identify_from_stdin (void)
2506 {
2507         unsigned short sbuf[800];
2508         unsigned char  buf[1600], *b = (unsigned char *)buf;
2509         int i, count = read(0, buf, 1280);
2510
2511         if (count != 1280)
2512                 bb_error_msg_and_die("read(1280 bytes) failed (rc=%d)", count);
2513         for (i = 0; count >= 4; ++i)
2514         {
2515                 sbuf[i] = (fromhex(b[0]) << 12) | (fromhex(b[1]) << 8) | (fromhex(b[2]) << 4) | fromhex(b[3]);
2516                 __le16_to_cpus((uint16_t *)(&sbuf[i]));
2517                 b += 5;
2518                 count -= 5;
2519         }
2520         identify(sbuf, NULL);
2521         return 0;
2522 }
2523 #endif
2524
2525 static void missing_arg(int arg, char c, char* add)
2526 {
2527         if (!arg)
2528                 bb_error_msg("-%c: missing value %s", c, (add!=NULL)? add :"");
2529 }
2530
2531 /* our main() routine: */
2532 int hdparm_main(int argc, char **argv)
2533 {
2534         char c, *p;
2535
2536         ++argv;
2537         if (!--argc)
2538                 bb_show_usage();
2539
2540         while (argc--)
2541         {
2542 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
2543                 if (!strcmp("-Istdin", *argv))
2544                 {
2545                         exit(identify_from_stdin());
2546                 }
2547 #endif
2548                 p = *argv++;
2549                 if (*p == '-')
2550                 {
2551                         if (!*++p)
2552                                 bb_show_usage();
2553                         while ((c = *p++))
2554                         {
2555                                 ++flagcount;
2556                                 switch (c)
2557                                 {
2558                                         case 'V':
2559                                                 /*bb_error_msg_and_die("%s", VERSION);*/
2560                                                 /* We have to return 0 here and not 1 */
2561                                                 printf("%s %s\n",bb_applet_name, VERSION);
2562                                                 exit(EXIT_SUCCESS);
2563                                         case 'v':
2564                                                 verbose = 1;
2565                                                 break;
2566 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
2567                                         case 'I':
2568                                                 get_IDentity = 1;
2569                                                 break;
2570                                         case 'i':
2571                                                 get_identity = 1;
2572                                                 break;
2573 #endif
2574                                         case 'g':
2575                                                 get_geom = 1;
2576                                                 break;
2577                                         case 'f':
2578                                                 do_flush = 1;
2579                                                 break;
2580                                         case 'q':
2581                                                 quiet = 1;
2582                                                 noisy = 0;
2583                                                 break;
2584                                         case 'u':
2585                                                 get_unmask = noisy;
2586                                                 noisy = 1;
2587                                                 if (!*p && argc && isdigit(**argv))
2588                                                         p = *argv++, --argc;
2589                                                 if((set_unmask = set_flag(p,'1'))==1)
2590                                                         unmask  = *p++ - '0';
2591                                                 break;
2592 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
2593                                         case 'd':
2594                                                 get_dma = noisy;
2595                                                 noisy = 1;
2596                                                 if (!*p && argc && isdigit(**argv))
2597                                                         p = *argv++, --argc;
2598                                                 if((set_dma = set_flag(p,'9'))==1)
2599                                                         dma = *p++ - '0';
2600                                                 break;
2601 #endif /* CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA */
2602                                         case 'n':
2603                                                 get_nowerr = noisy;
2604                                                 noisy = 1;
2605                                                 if (!*p && argc && isdigit(**argv))
2606                                                         p = *argv++, --argc;
2607                                                 if((set_nowerr = set_flag(p,'1'))==1)
2608                                                         nowerr  = *p++ - '0';
2609                                                 break;
2610                                         case 'p':
2611                                                 noisy_piomode = noisy;
2612                                                 noisy = 1;
2613                                                 if (!*p && argc && isalnum(**argv))
2614                                                         p = *argv++, --argc;
2615                                                 p=GET_STRING(p,&set_piomode,&piomode);
2616                                                 break;
2617                                         case 'r':
2618                                                 get_readonly = noisy;
2619                                                 noisy = 1;
2620                                                 if (!*p && argc && isdigit(**argv))
2621                                                         p = *argv++, --argc;
2622                                                 if((set_readonly = set_flag(p,'1'))==1)
2623                                                         readonly  = *p++ - '0';
2624                                                 break;
2625                                         case 'm':
2626                                                 get_mult = noisy;
2627                                                 noisy = 1;
2628                                                 if (!*p && argc && isalnum(**argv))
2629                                                         p = *argv++, --argc;
2630                                                 p=GET_NUMBER(p,&set_mult,&mult);
2631                                                 break;
2632                                         case 'c':
2633                                                 get_io32bit = noisy;
2634                                                 noisy = 1;
2635                                                 if (!*p && argc && isalnum(**argv))
2636                                                         p = *argv++, --argc;
2637                                                 p=GET_NUMBER(p,&set_io32bit,&io32bit);
2638                                                 break;
2639 #ifdef HDIO_DRIVE_CMD
2640                                         case 'S':
2641                                                 get_standby = noisy;
2642                                                 noisy = 1;
2643                                                 if (!*p && argc && isalnum(**argv))
2644                                                         p = *argv++, --argc;
2645                                                 p=GET_NUMBER(p,&set_standby,&standby_requested);
2646                                                 missing_arg(set_standby, c, NULL);
2647                                                 break;
2648
2649                                         case 'D':
2650                                                 get_defects = noisy;
2651                                                 noisy = 1;
2652                                                 if (!*p && argc && isalnum(**argv))
2653                                                         p = *argv++, --argc;
2654                                                 p=GET_NUMBER(p,&set_defects,&defects);
2655                                                 missing_arg(set_defects, c, NULL);
2656                                                 break;
2657                                         case 'P':
2658                                                 get_prefetch = noisy;
2659                                                 noisy = 1;
2660                                                 if (!*p && argc && isalnum(**argv))
2661                                                         p = *argv++, --argc;
2662                                                 p=GET_NUMBER(p,&set_prefetch,&prefetch);
2663                                                 missing_arg(set_prefetch, c, NULL);
2664                                                 break;
2665
2666                                         case 'X':
2667                                                 get_xfermode = noisy;
2668                                                 noisy = 1;
2669                                                 if (!*p && argc && isalnum(**argv))
2670                                                         p = *argv++, --argc;
2671                                                 p=GET_STRING(p,&set_xfermode,&xfermode_requested);
2672                                                 missing_arg(set_xfermode, c, NULL);
2673                                                 break;
2674
2675                                         case 'K':
2676                                                 get_dkeep = noisy;
2677                                                 noisy = 1;
2678                                                 if (!*p && argc && isdigit(**argv))
2679                                                         p = *argv++, --argc;
2680                                                 if((set_dkeep = set_flag(p,'1'))==1)
2681                                                         dkeep  = *p++ - '0';
2682                                                 else
2683                                                         goto missing_arg_error;
2684                                                 break;
2685
2686                                         case 'A':
2687                                                 get_lookahead = noisy;
2688                                                 noisy = 1;
2689                                                 if (!*p && argc && isdigit(**argv))
2690                                                         p = *argv++, --argc;
2691                                                 if((set_lookahead = set_flag(p,'1'))==1)
2692                                                         lookahead  = *p++ - '0';
2693                                                 else
2694                                                         goto missing_arg_error;
2695                                                 break;
2696
2697                                         case 'L':
2698                                                 get_doorlock = noisy;
2699                                                 noisy = 1;
2700                                                 if (!*p && argc && isdigit(**argv))
2701                                                         p = *argv++, --argc;
2702                                                 if((set_doorlock = set_flag(p,'1'))==1)
2703                                                         doorlock  = *p++ - '0';
2704                                                 else
2705                                                         goto missing_arg_error;
2706                                                 break;
2707
2708                                         case 'W':
2709                                                 get_wcache = noisy;
2710                                                 noisy = 1;
2711                                                 if (!*p && argc && isdigit(**argv))
2712                                                         p = *argv++, --argc;
2713                                                 if((set_wcache = set_flag(p,'1'))==1)
2714                                                         wcache  = *p++ - '0';
2715                                                 else
2716 missing_arg_error:
2717                                                         missing_arg(1, c, "(0/1)");
2718                                                 break;
2719
2720                                         case 'C':
2721                                                 get_powermode = noisy;
2722                                                 noisy = 1;
2723                                                 break;
2724
2725                                         case 'y':
2726                                                 get_standbynow = noisy;
2727                                                 noisy = 1;
2728                                                 set_standbynow = 1;
2729                                                 break;
2730
2731                                         case 'Y':
2732                                                 get_sleepnow = noisy;
2733                                                 noisy = 1;
2734                                                 set_sleepnow = 1;
2735                                                 break;
2736
2737                                         case 'z':
2738                                                 reread_partn = 1;
2739                                                 break;
2740
2741                                         case 'Z':
2742                                                 get_seagate = noisy;
2743                                                 noisy = 1;
2744                                                 set_seagate = 1;
2745                                                 break;
2746 #endif /* HDIO_DRIVE_CMD */
2747                                         case 'k':
2748                                                 get_keep = noisy;
2749                                                 noisy = 1;
2750                                                 if (!*p && argc && isdigit(**argv))
2751                                                         p = *argv++, --argc;
2752                                                 if((set_keep = set_flag(p,'1'))==1)
2753                                                         keep  = *p++ - '0';
2754                                                 break;
2755 #ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
2756                                         case 'U':
2757                                                 if (!*p && argc && isdigit(**argv))
2758                                                         p = *argv++, --argc;
2759                                                 if(! p)
2760                                                         goto expected_hwif_error; /* "expected hwif_nr" */
2761
2762                                                 sscanf(p++, "%i", &hwif);
2763
2764                                                 unregister_hwif = 1;
2765                                                 break;
2766 #endif /* CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF */
2767 #ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
2768                                         case 'R':
2769                                                 if (!*p && argc && isdigit(**argv))
2770                                                         p = *argv++, --argc;
2771                                                 if(! p)
2772                                                         goto expected_hwif_error; /* "expected hwif_data" */
2773
2774                                                 sscanf(p++, "%i", &hwif_data);
2775
2776                                                 if (argc && isdigit(**argv))
2777                                                         p = *argv++, --argc;
2778                                                 else
2779                                                         goto expected_hwif_error; /* "expected hwif_ctrl" */
2780
2781                                                 sscanf(p, "%i", &hwif_ctrl);
2782
2783                                                 if (argc && isdigit(**argv))
2784                                                         p = *argv++, --argc;
2785                                                 else
2786 expected_hwif_error:
2787                                                         bb_error_msg_and_die("expected hwif value"); /* "expected hwif_irq" */
2788
2789                                                 sscanf(p, "%i", &hwif_irq);
2790
2791                                                 *p = '\0';
2792
2793                                                 scan_hwif = 1;
2794                                                 break;
2795 #endif /* CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF */
2796                                         case 'Q':
2797 #ifdef HDIO_GET_QDMA
2798                                                 get_dma_q = noisy;
2799                                                 noisy = 1;
2800 #ifdef HDIO_SET_QDMA
2801                                                 if (!*p && argc && isalnum(**argv))
2802                                                         p = *argv++, --argc;
2803                                                 p=GET_NUMBER(p,&set_dma_q,&dma_q);
2804 #ifdef HDIO_GET_QDMA
2805                                                 dma_q = -dma_q;
2806 #endif
2807 #endif
2808 #endif
2809                                                 break;
2810
2811 #ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
2812                                         case 'w':
2813                                                 perform_reset = 1;
2814                                                 break;
2815 #endif /* CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET */
2816 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
2817                                         case 'x':
2818                                                 if (!*p && argc && isdigit(**argv))
2819                                                         p = *argv++, --argc;
2820                                                 if((perform_tristate = set_flag(p,'1'))==1)
2821                                                         tristate  = *p++ - '0';
2822                                                 else
2823                                                         missing_arg(1, c, "(0/1)");
2824                                                 break;
2825
2826 #endif /* CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
2827                                         case 'a':
2828                                                 get_readahead = noisy;
2829                                                 noisy = 1;
2830                                                 if (!*p && argc && isalnum(**argv))
2831                                                         p = *argv++, --argc;
2832                                                 p=GET_NUMBER(p,&set_readahead,&Xreadahead);
2833                                                 break;
2834                                         case 'B':
2835                                                 get_apmmode = noisy;
2836                                                 noisy = 1;
2837                                                 if (!*p && argc && isalnum(**argv))
2838                                                         p = *argv++, --argc;
2839                                                 p=GET_NUMBER(p,&set_apmmode,&apmmode);
2840                                                 missing_arg(set_apmmode, c, "(1-255)");
2841                                                 break;
2842                                         case 't':
2843                                                 do_timings = 1;
2844                                                 do_flush = 1;
2845                                                 break;
2846                                         case 'T':
2847                                                 do_ctimings = 1;
2848                                                 do_flush = 1;
2849                                                 break;
2850 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
2851                                         case 'b':
2852                                                 get_busstate = noisy;
2853                                                 noisy = 1;
2854                                                 if (!*p && argc && isdigit(**argv))
2855                                                         p = *argv++, --argc;
2856                                                 if((set_busstate = set_flag(p,'2'))==1)
2857                                                         busstate  = *p++ - '0';
2858                                                 break;
2859 #endif
2860                                         case 'h':
2861                                         default:
2862                                                 bb_show_usage();
2863                                 }
2864                         }
2865                         if (!argc)
2866                                 bb_show_usage();
2867                 } else {
2868                         process_dev (p);
2869                 }
2870         }
2871         return 0 ;
2872 }