miscutils/hdparm.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * hdparm implementation for busybox
   4  *
   5  * Copyright (C) [2003] by [Matteo Croce] <3297627799@wind.it>
   6  * Hacked by Tito <farmatito@tiscali.it> for size optimization.
   7  *
   8  * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
   9  *
  10  * This program is based on the source code of hdparm: see below...
  11  * hdparm.c - Command line interface to get/set hard disk parameters
  12  *          - by Mark Lord (C) 1994-2002 -- freely distributable
  13  */
  14
  15 #include "busybox.h"
  16 #include <linux/hdreg.h>
  17
  18 /* device types */
  19 /* ------------ */
  20 #define NO_DEV                  0xffff
  21 #define ATA_DEV                 0x0000
  22 #define ATAPI_DEV               0x0001
  23
  24 /* word definitions */
  25 /* ---------------- */
  26 #define GEN_CONFIG              0   /* general configuration */
  27 #define LCYLS                   1   /* number of logical cylinders */
  28 #define CONFIG                  2   /* specific configuration */
  29 #define LHEADS                  3   /* number of logical heads */
  30 #define TRACK_BYTES             4   /* number of bytes/track (ATA-1) */
  31 #define SECT_BYTES              5   /* number of bytes/sector (ATA-1) */
  32 #define LSECTS                  6   /* number of logical sectors/track */
  33 #define START_SERIAL            10  /* ASCII serial number */
  34 #define LENGTH_SERIAL           10  /* 10 words (20 bytes or characters) */
  35 #define BUF_TYPE                20  /* buffer type (ATA-1) */
  36 #define BUFFER__SIZE            21  /* buffer size (ATA-1) */
  37 #define RW_LONG                 22  /* extra bytes in R/W LONG cmd ( < ATA-4)*/
  38 #define START_FW_REV            23  /* ASCII firmware revision */
  39 #define LENGTH_FW_REV            4  /*  4 words (8 bytes or characters) */
  40 #define START_MODEL             27  /* ASCII model number */
  41 #define LENGTH_MODEL            20  /* 20 words (40 bytes or characters) */
  42 #define SECTOR_XFER_MAX         47  /* r/w multiple: max sectors xfered */
  43 #define DWORD_IO                48  /* can do double-word IO (ATA-1 only) */
  44 #define CAPAB_0                 49  /* capabilities */
  45 #define CAPAB_1                 50
  46 #define PIO_MODE                51  /* max PIO mode supported (obsolete)*/
  47 #define DMA_MODE                52  /* max Singleword DMA mode supported (obs)*/
  48 #define WHATS_VALID             53  /* what fields are valid */
  49 #define LCYLS_CUR               54  /* current logical cylinders */
  50 #define LHEADS_CUR              55  /* current logical heads */
  51 #define LSECTS_CUR              56  /* current logical sectors/track */
  52 #define CAPACITY_LSB            57  /* current capacity in sectors */
  53 #define CAPACITY_MSB            58
  54 #define SECTOR_XFER_CUR         59  /* r/w multiple: current sectors xfered */
  55 #define LBA_SECTS_LSB           60  /* LBA: total number of user */
  56 #define LBA_SECTS_MSB           61  /*      addressable sectors */
  57 #define SINGLE_DMA              62  /* singleword DMA modes */
  58 #define MULTI_DMA               63  /* multiword DMA modes */
  59 #define ADV_PIO_MODES           64  /* advanced PIO modes supported */
  60                                     /* multiword DMA xfer cycle time: */
  61 #define DMA_TIME_MIN            65  /*   - minimum */
  62 #define DMA_TIME_NORM           66  /*   - manufacturer's recommended   */
  63                                     /* minimum PIO xfer cycle time: */
  64 #define PIO_NO_FLOW             67  /*   - without flow control */
  65 #define PIO_FLOW                68  /*   - with IORDY flow control */
  66 #define PKT_REL                 71  /* typical #ns from PKT cmd to bus rel */
  67 #define SVC_NBSY                72  /* typical #ns from SERVICE cmd to !BSY */
  68 #define CDR_MAJOR               73  /* CD ROM: major version number */
  69 #define CDR_MINOR               74  /* CD ROM: minor version number */
  70 #define QUEUE_DEPTH             75  /* queue depth */
  71 #define MAJOR                   80  /* major version number */
  72 #define MINOR                   81  /* minor version number */
  73 #define CMDS_SUPP_0             82  /* command/feature set(s) supported */
  74 #define CMDS_SUPP_1             83
  75 #define CMDS_SUPP_2             84
  76 #define CMDS_EN_0               85  /* command/feature set(s) enabled */
  77 #define CMDS_EN_1               86
  78 #define CMDS_EN_2               87
  79 #define ULTRA_DMA               88  /* ultra DMA modes */
  80                                     /* time to complete security erase */
  81 #define ERASE_TIME              89  /*   - ordinary */
  82 #define ENH_ERASE_TIME          90  /*   - enhanced */
  83 #define ADV_PWR                 91  /* current advanced power management level
  84                                        in low byte, 0x40 in high byte. */
  85 #define PSWD_CODE               92  /* master password revision code    */
  86 #define HWRST_RSLT              93  /* hardware reset result */
  87 #define ACOUSTIC                94  /* acoustic mgmt values ( >= ATA-6) */
  88 #define LBA_LSB                 100 /* LBA: maximum.  Currently only 48 */
  89 #define LBA_MID                 101 /*      bits are used, but addr 103 */
  90 #define LBA_48_MSB              102 /*      has been reserved for LBA in */
  91 #define LBA_64_MSB              103 /*      the future. */
  92 #define RM_STAT                 127 /* removable media status notification feature set support */
  93 #define SECU_STATUS             128 /* security status */
  94 #define CFA_PWR_MODE            160 /* CFA power mode 1 */
  95 #define START_MEDIA             176 /* media serial number */
  96 #define LENGTH_MEDIA            20  /* 20 words (40 bytes or characters)*/
  97 #define START_MANUF             196 /* media manufacturer I.D. */
  98 #define LENGTH_MANUF            10  /* 10 words (20 bytes or characters) */
  99 #define INTEGRITY               255 /* integrity word */
 100
 101 /* bit definitions within the words */
 102 /* -------------------------------- */
 103
 104 /* many words are considered valid if bit 15 is 0 and bit 14 is 1 */
 105 #define VALID                   0xc000
 106 #define VALID_VAL               0x4000
 107 /* many words are considered invalid if they are either all-0 or all-1 */
 108 #define NOVAL_0                 0x0000
 109 #define NOVAL_1                 0xffff
 110
 111 /* word 0: gen_config */
 112 #define NOT_ATA                 0x8000
 113 #define NOT_ATAPI               0x4000  /* (check only if bit 15 == 1) */
 114 #define MEDIA_REMOVABLE         0x0080
 115 #define DRIVE_NOT_REMOVABLE     0x0040  /* bit obsoleted in ATA 6 */
 116 #define INCOMPLETE              0x0004
 117 #define CFA_SUPPORT_VAL         0x848a  /* 848a=CFA feature set support */
 118 #define DRQ_RESPONSE_TIME       0x0060
 119 #define DRQ_3MS_VAL             0x0000
 120 #define DRQ_INTR_VAL            0x0020
 121 #define DRQ_50US_VAL            0x0040
 122 #define PKT_SIZE_SUPPORTED      0x0003
 123 #define PKT_SIZE_12_VAL         0x0000
 124 #define PKT_SIZE_16_VAL         0x0001
 125 #define EQPT_TYPE               0x1f00
 126 #define SHIFT_EQPT              8
 127
 128 #define CDROM 0x0005
 129
 130 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 131 static const char * const pkt_str[] = {
 132         "Direct-access device",                 /* word 0, bits 12-8 = 00 */
 133         "Sequential-access device",             /* word 0, bits 12-8 = 01 */
 134         "Printer",                              /* word 0, bits 12-8 = 02 */
 135         "Processor",                            /* word 0, bits 12-8 = 03 */
 136         "Write-once device",                    /* word 0, bits 12-8 = 04 */
 137         "CD-ROM",                               /* word 0, bits 12-8 = 05 */
 138         "Scanner",                              /* word 0, bits 12-8 = 06 */
 139         "Optical memory",                       /* word 0, bits 12-8 = 07 */
 140         "Medium changer",                       /* word 0, bits 12-8 = 08 */
 141         "Communications device",                /* word 0, bits 12-8 = 09 */
 142         "ACS-IT8 device",                       /* word 0, bits 12-8 = 0a */
 143         "ACS-IT8 device",                       /* word 0, bits 12-8 = 0b */
 144         "Array controller",                     /* word 0, bits 12-8 = 0c */
 145         "Enclosure services",                   /* word 0, bits 12-8 = 0d */
 146         "Reduced block command device",         /* word 0, bits 12-8 = 0e */
 147         "Optical card reader/writer",           /* word 0, bits 12-8 = 0f */
 148         "",                                     /* word 0, bits 12-8 = 10 */
 149         "",                                     /* word 0, bits 12-8 = 11 */
 150         "",                                     /* word 0, bits 12-8 = 12 */
 151         "",                                     /* word 0, bits 12-8 = 13 */
 152         "",                                     /* word 0, bits 12-8 = 14 */
 153         "",                                     /* word 0, bits 12-8 = 15 */
 154         "",                                     /* word 0, bits 12-8 = 16 */
 155         "",                                     /* word 0, bits 12-8 = 17 */
 156         "",                                     /* word 0, bits 12-8 = 18 */
 157         "",                                     /* word 0, bits 12-8 = 19 */
 158         "",                                     /* word 0, bits 12-8 = 1a */
 159         "",                                     /* word 0, bits 12-8 = 1b */
 160         "",                                     /* word 0, bits 12-8 = 1c */
 161         "",                                     /* word 0, bits 12-8 = 1d */
 162         "",                                     /* word 0, bits 12-8 = 1e */
 163         "Unknown",                      /* word 0, bits 12-8 = 1f */
 164 };
 165
 166 static const char * const ata1_cfg_str[] = {                    /* word 0 in ATA-1 mode */
 167         "Reserved",                             /* bit 0 */
 168         "hard sectored",                        /* bit 1 */
 169         "soft sectored",                        /* bit 2 */
 170         "not MFM encoded ",                     /* bit 3 */
 171         "head switch time > 15us",              /* bit 4 */
 172         "spindle motor control option",         /* bit 5 */
 173         "fixed drive",                          /* bit 6 */
 174         "removable drive",                      /* bit 7 */
 175         "disk xfer rate <= 5Mbs",               /* bit 8 */
 176         "disk xfer rate > 5Mbs, <= 10Mbs",      /* bit 9 */
 177         "disk xfer rate > 5Mbs",                /* bit 10 */
 178         "rotational speed tol.",                /* bit 11 */
 179         "data strobe offset option",            /* bit 12 */
 180         "track offset option",                  /* bit 13 */
 181         "format speed tolerance gap reqd",      /* bit 14 */
 182         "ATAPI"                                 /* bit 14 */
 183 };
 184 #endif
 185
 186 /* word 1: number of logical cylinders */
 187 #define LCYLS_MAX               0x3fff /* maximum allowable value */
 188
 189 /* word 2: specific configuration
 190  * (a) require SET FEATURES to spin-up
 191  * (b) require spin-up to fully reply to IDENTIFY DEVICE
 192  */
 193 #define STBY_NID_VAL            0x37c8  /*     (a) and     (b) */
 194 #define STBY_ID_VAL             0x738c  /*     (a) and not (b) */
 195 #define PWRD_NID_VAL            0x8c73  /* not (a) and     (b) */
 196 #define PWRD_ID_VAL             0xc837  /* not (a) and not (b) */
 197
 198 /* words 47 & 59: sector_xfer_max & sector_xfer_cur */
 199 #define SECTOR_XFER             0x00ff  /* sectors xfered on r/w multiple cmds*/
 200 #define MULTIPLE_SETTING_VALID  0x0100  /* 1=multiple sector setting is valid */
 201
 202 /* word 49: capabilities 0 */
 203 #define STD_STBY                0x2000  /* 1=standard values supported (ATA);
 204                                            0=vendor specific values */
 205 #define IORDY_SUP               0x0800  /* 1=support; 0=may be supported */
 206 #define IORDY_OFF               0x0400  /* 1=may be disabled */
 207 #define LBA_SUP                 0x0200  /* 1=Logical Block Address support */
 208 #define DMA_SUP                 0x0100  /* 1=Direct Memory Access support */
 209 #define DMA_IL_SUP              0x8000  /* 1=interleaved DMA support (ATAPI) */
 210 #define CMD_Q_SUP               0x4000  /* 1=command queuing support (ATAPI) */
 211 #define OVLP_SUP                0x2000  /* 1=overlap operation support (ATAPI) */
 212 #define SWRST_REQ               0x1000  /* 1=ATA SW reset required (ATAPI, obsolete */
 213
 214 /* word 50: capabilities 1 */
 215 #define MIN_STANDBY_TIMER       0x0001  /* 1=device specific standby timer value minimum */
 216
 217 /* words 51 & 52: PIO & DMA cycle times */
 218 #define MODE                    0xff00  /* the mode is in the MSBs */
 219
 220 /* word 53: whats_valid */
 221 #define OK_W88                  0x0004  /* the ultra_dma info is valid */
 222 #define OK_W64_70               0x0002  /* see above for word descriptions */
 223 #define OK_W54_58               0x0001  /* current cyl, head, sector, cap. info valid */
 224
 225 /*word 63,88: dma_mode, ultra_dma_mode*/
 226 #define MODE_MAX                7       /* bit definitions force udma <=7 (when
 227                                          * udma >=8 comes out it'll have to be
 228                                          * defined in a new dma_mode word!) */
 229
 230 /* word 64: PIO transfer modes */
 231 #define PIO_SUP                 0x00ff  /* only bits 0 & 1 are used so far,  */
 232 #define PIO_MODE_MAX            8       /* but all 8 bits are defined        */
 233
 234 /* word 75: queue_depth */
 235 #define DEPTH_BITS              0x001f  /* bits used for queue depth */
 236
 237 /* words 80-81: version numbers */
 238 /* NOVAL_0 or  NOVAL_1 means device does not report version */
 239
 240 /* word 81: minor version number */
 241 #define MINOR_MAX               0x22
 242 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 243 static const char *minor_str[MINOR_MAX+2] = {                   /* word 81 value: */
 244         "Unspecified",                                  /* 0x0000       */
 245         "ATA-1 X3T9.2 781D prior to rev.4",     /* 0x0001       */
 246         "ATA-1 published, ANSI X3.221-1994",            /* 0x0002       */
 247         "ATA-1 X3T9.2 781D rev.4",                      /* 0x0003       */
 248         "ATA-2 published, ANSI X3.279-1996",            /* 0x0004       */
 249         "ATA-2 X3T10 948D prior to rev.2k",     /* 0x0005       */
 250         "ATA-3 X3T10 2008D rev.1",                      /* 0x0006       */
 251         "ATA-2 X3T10 948D rev.2k",                      /* 0x0007       */
 252         "ATA-3 X3T10 2008D rev.0",                      /* 0x0008       */
 253         "ATA-2 X3T10 948D rev.3",                       /* 0x0009       */
 254         "ATA-3 published, ANSI X3.298-199x",            /* 0x000a       */
 255         "ATA-3 X3T10 2008D rev.6",                      /* 0x000b       */
 256         "ATA-3 X3T13 2008D rev.7 and 7a",               /* 0x000c       */
 257         "ATA/ATAPI-4 X3T13 1153D rev.6",                /* 0x000d       */
 258         "ATA/ATAPI-4 T13 1153D rev.13",         /* 0x000e       */
 259         "ATA/ATAPI-4 X3T13 1153D rev.7",                /* 0x000f       */
 260         "ATA/ATAPI-4 T13 1153D rev.18",         /* 0x0010       */
 261         "ATA/ATAPI-4 T13 1153D rev.15",         /* 0x0011       */
 262         "ATA/ATAPI-4 published, ANSI INCITS 317-1998",  /* 0x0012       */
 263         "ATA/ATAPI-5 T13 1321D rev.3",
 264         "ATA/ATAPI-4 T13 1153D rev.14",         /* 0x0014       */
 265         "ATA/ATAPI-5 T13 1321D rev.1",          /* 0x0015       */
 266         "ATA/ATAPI-5 published, ANSI INCITS 340-2000",  /* 0x0016       */
 267         "ATA/ATAPI-4 T13 1153D rev.17",         /* 0x0017       */
 268         "ATA/ATAPI-6 T13 1410D rev.0",          /* 0x0018       */
 269         "ATA/ATAPI-6 T13 1410D rev.3a",         /* 0x0019       */
 270         "ATA/ATAPI-7 T13 1532D rev.1",          /* 0x001a       */
 271         "ATA/ATAPI-6 T13 1410D rev.2",          /* 0x001b       */
 272         "ATA/ATAPI-6 T13 1410D rev.1",          /* 0x001c       */
 273         "ATA/ATAPI-7 published, ANSI INCITS 397-2005",  /* 0x001d       */
 274         "ATA/ATAPI-7 T13 1532D rev.0",          /* 0x001e       */
 275         "Reserved"                                      /* 0x001f       */
 276         "Reserved"                                      /* 0x0020       */
 277         "ATA/ATAPI-7 T13 1532D rev.4a",         /* 0x0021       */
 278         "ATA/ATAPI-6 published, ANSI INCITS 361-2002",  /* 0x0022       */
 279         "Reserved"                                      /* 0x0023-0xfffe*/
 280 };
 281 #endif
 282 static const char actual_ver[MINOR_MAX+2] = {
 283                         /* word 81 value: */
 284         0,              /* 0x0000       WARNING:        */
 285         1,              /* 0x0001       WARNING:        */
 286         1,              /* 0x0002       WARNING:        */
 287         1,              /* 0x0003       WARNING:        */
 288         2,              /* 0x0004       WARNING:   This array           */
 289         2,              /* 0x0005       WARNING:   corresponds          */
 290         3,              /* 0x0006       WARNING:   *exactly*            */
 291         2,              /* 0x0007       WARNING:   to the ATA/          */
 292         3,              /* 0x0008       WARNING:   ATAPI version        */
 293         2,              /* 0x0009       WARNING:   listed in            */
 294         3,              /* 0x000a       WARNING:   the                  */
 295         3,              /* 0x000b       WARNING:   minor_str            */
 296         3,              /* 0x000c       WARNING:   array                */
 297         4,              /* 0x000d       WARNING:   above.               */
 298         4,              /* 0x000e       WARNING:                        */
 299         4,              /* 0x000f       WARNING:   if you change        */
 300         4,              /* 0x0010       WARNING:   that one,            */
 301         4,              /* 0x0011       WARNING:   change this one      */
 302         4,              /* 0x0012       WARNING:   too!!!               */
 303         5,              /* 0x0013       WARNING:        */
 304         4,              /* 0x0014       WARNING:        */
 305         5,              /* 0x0015       WARNING:        */
 306         5,              /* 0x0016       WARNING:        */
 307         4,              /* 0x0017       WARNING:        */
 308         6,              /* 0x0018       WARNING:        */
 309         6,              /* 0x0019       WARNING:        */
 310         7,              /* 0x001a       WARNING:        */
 311         6,              /* 0x001b       WARNING:        */
 312         6,              /* 0x001c       WARNING:        */
 313         7,              /* 0x001d       WARNING:        */
 314         7,              /* 0x001e       WARNING:        */
 315         0,              /* 0x001f       WARNING:        */
 316         0,              /* 0x0020       WARNING:        */
 317         7,              /* 0x0021       WARNING:        */
 318         6,              /* 0x0022       WARNING:        */
 319         0               /* 0x0023-0xfffe        */
 320 };
 321
 322 /* words 82-84: cmds/feats supported */
 323 #define CMDS_W82                0x77ff  /* word 82: defined command locations*/
 324 #define CMDS_W83                0x3fff  /* word 83: defined command locations*/
 325 #define CMDS_W84                0x002f  /* word 83: defined command locations*/
 326 #define SUPPORT_48_BIT          0x0400
 327 #define NUM_CMD_FEAT_STR        48
 328
 329 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 330 static const char * const cmd_feat_str[] = {
 331         "",                                     /* word 82 bit 15: obsolete  */
 332         "NOP cmd",                              /* word 82 bit 14 */
 333         "READ BUFFER cmd",                      /* word 82 bit 13 */
 334         "WRITE BUFFER cmd",                     /* word 82 bit 12 */
 335         "",                                     /* word 82 bit 11: obsolete  */
 336         "Host Protected Area feature set",      /* word 82 bit 10 */
 337         "DEVICE RESET cmd",                     /* word 82 bit  9 */
 338         "SERVICE interrupt",                    /* word 82 bit  8 */
 339         "Release interrupt",                    /* word 82 bit  7 */
 340         "Look-ahead",                           /* word 82 bit  6 */
 341         "Write cache",                          /* word 82 bit  5 */
 342         "PACKET command feature set",           /* word 82 bit  4 */
 343         "Power Management feature set",         /* word 82 bit  3 */
 344         "Removable Media feature set",          /* word 82 bit  2 */
 345         "Security Mode feature set",            /* word 82 bit  1 */
 346         "SMART feature set",                    /* word 82 bit  0 */
 347                                                 /* --------------*/
 348         "",                                     /* word 83 bit 15: !valid bit */
 349         "",                                     /* word 83 bit 14:  valid bit */
 350         "FLUSH CACHE EXT cmd",          /* word 83 bit 13 */
 351         "Mandatory FLUSH CACHE cmd ",   /* word 83 bit 12 */
 352         "Device Configuration Overlay feature set ",
 353         "48-bit Address feature set ",          /* word 83 bit 10 */
 354         "",
 355         "SET MAX security extension",           /* word 83 bit  8 */
 356         "Address Offset Reserved Area Boot",    /* word 83 bit  7 */
 357         "SET FEATURES subcommand required to spinup after power up",
 358         "Power-Up In Standby feature set",      /* word 83 bit  5 */
 359         "Removable Media Status Notification feature set",
 360         "Adv. Power Management feature set",/* word 83 bit  3 */
 361         "CFA feature set",                      /* word 83 bit  2 */
 362         "READ/WRITE DMA QUEUED",                /* word 83 bit  1 */
 363         "DOWNLOAD MICROCODE cmd",               /* word 83 bit  0 */
 364                                                 /* --------------*/
 365         "",                                     /* word 84 bit 15: !valid bit */
 366         "",                                     /* word 84 bit 14:  valid bit */
 367         "",                                     /* word 84 bit 13:  reserved */
 368         "",                                     /* word 84 bit 12:  reserved */
 369         "",                                     /* word 84 bit 11:  reserved */
 370         "",                                     /* word 84 bit 10:  reserved */
 371         "",                                     /* word 84 bit  9:  reserved */
 372         "",                                     /* word 84 bit  8:  reserved */
 373         "",                                     /* word 84 bit  7:  reserved */
 374         "",                                     /* word 84 bit  6:  reserved */
 375         "General Purpose Logging feature set",  /* word 84 bit  5 */
 376         "",                                     /* word 84 bit  4:  reserved */
 377         "Media Card Pass Through Command feature set ",
 378         "Media serial number ",                 /* word 84 bit  2 */
 379         "SMART self-test ",                     /* word 84 bit  1 */
 380         "SMART error logging "                  /* word 84 bit  0 */
 381 };
 382
 383 static void identify(uint16_t *id_supplied) ATTRIBUTE_NORETURN;
 384 static void identify_from_stdin(void) ATTRIBUTE_NORETURN;
 385 #else
 386 void identify_from_stdin(void);
 387 #endif
 388
 389
 390 /* words 85-87: cmds/feats enabled */
 391 /* use cmd_feat_str[] to display what commands and features have
 392  * been enabled with words 85-87
 393  */
 394
 395 /* words 89, 90, SECU ERASE TIME */
 396 #define ERASE_BITS              0x00ff
 397
 398 /* word 92: master password revision */
 399 /* NOVAL_0 or  NOVAL_1 means no support for master password revision */
 400
 401 /* word 93: hw reset result */
 402 #define CBLID                   0x2000  /* CBLID status */
 403 #define RST0                    0x0001  /* 1=reset to device #0 */
 404 #define DEV_DET                 0x0006  /* how device num determined */
 405 #define JUMPER_VAL              0x0002  /* device num determined by jumper */
 406 #define CSEL_VAL                0x0004  /* device num determined by CSEL_VAL */
 407
 408 /* word 127: removable media status notification feature set support */
 409 #define RM_STAT_BITS            0x0003
 410 #define RM_STAT_SUP             0x0001
 411
 412 /* word 128: security */
 413 #define SECU_ENABLED    0x0002
 414 #define SECU_LEVEL              0x0010
 415 #define NUM_SECU_STR    6
 416 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 417 static const char * const secu_str[] = {
 418         "supported",                    /* word 128, bit 0 */
 419         "enabled",                      /* word 128, bit 1 */
 420         "locked",                       /* word 128, bit 2 */
 421         "frozen",                       /* word 128, bit 3 */
 422         "expired: security count",      /* word 128, bit 4 */
 423         "supported: enhanced erase"     /* word 128, bit 5 */
 424 };
 425 #endif
 426
 427 /* word 160: CFA power mode */
 428 #define VALID_W160              0x8000  /* 1=word valid */
 429 #define PWR_MODE_REQ            0x2000  /* 1=CFA power mode req'd by some cmds*/
 430 #define PWR_MODE_OFF            0x1000  /* 1=CFA power moded disabled */
 431 #define MAX_AMPS                0x0fff  /* value = max current in ma */
 432
 433 /* word 255: integrity */
 434 #define SIG                     0x00ff  /* signature location */
 435 #define SIG_VAL                 0x00A5  /* signature value */
 436
 437 #define TIMING_MB               64
 438 #define TIMING_BUF_MB           1
 439 #define TIMING_BUF_BYTES        (TIMING_BUF_MB * 1024 * 1024)
 440 #define TIMING_BUF_COUNT        (timing_MB / TIMING_BUF_MB)
 441 #define BUFCACHE_FACTOR         2
 442
 443 #undef DO_FLUSHCACHE            /* under construction: force cache flush on -W0 */
 444
 445 /* Busybox messages and functions */
 446 static int bb_ioctl(int fd, int request, void *argp, const char *string)
 447 {
 448         int e = ioctl(fd, request, argp);
 449         if (e && string)
 450                 bb_perror_msg(" %s", string);
 451         return e;
 452 }
 453
 454 static int bb_ioctl_alt(int fd, int cmd, unsigned char *args, int alt, const char *string)
 455 {
 456         if (!ioctl(fd, cmd, args))
 457                 return 0;
 458         args[0] = alt;
 459         return bb_ioctl(fd, cmd, args, string);
 460 }
 461
 462 static void on_off(unsigned int value);
 463
 464 static void print_flag_on_off(unsigned long get_arg, const char *s, unsigned long arg)
 465 {
 466
 467         if (get_arg)
 468         {
 469                 printf(" setting %s to %ld", s, arg);
 470                 on_off(arg);
 471         }
 472 }
 473
 474 static void bb_ioctl_on_off(int fd, int request, void *argp, const char *string,
 475                                                          const char * str)
 476 {
 477         if (ioctl(fd, request, &argp) != 0)
 478                 bb_perror_msg(" %s", string);
 479         else
 480         {
 481                 printf(" %s\t= %2ld", str, (unsigned long) argp);
 482                 on_off((unsigned long) argp);
 483         }
 484 }
 485
 486 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 487 static void print_ascii(uint16_t *p, uint8_t length);
 488
 489 static void xprint_ascii(uint16_t *val ,int i, char * string, int n)
 490 {
 491         if (val[i])
 492         {
 493                 printf("\t%-20s",string);
 494                 print_ascii(&val[i], n);
 495         }
 496 }
 497 #endif
 498 /* end of  busybox specific stuff */
 499
 500 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
 501 static uint8_t mode_loop(uint16_t mode_sup, uint16_t mode_sel, int cc, uint8_t *have_mode)
 502 {
 503         uint16_t ii;
 504         uint8_t err_dma = 0;
 505
 506         for (ii = 0; ii <= MODE_MAX; ii++)
 507         {
 508                 if (mode_sel & 0x0001)
 509                 {
 510                         printf("*%cdma%u ",cc,ii);
 511                         if (*have_mode)
 512                                 err_dma = 1;
 513                         *have_mode = 1;
 514                 }
 515                 else if (mode_sup & 0x0001)
 516                         printf("%cdma%u ",cc,ii);
 517
 518                 mode_sup >>=1;
 519                 mode_sel >>=1;
 520         }
 521         return err_dma;
 522 }
 523
 524 static void print_ascii(uint16_t *p, uint8_t length) {
 525         uint8_t ii;
 526         char cl;
 527
 528         /* find first non-space & print it */
 529         for (ii = 0; ii< length; ii++)
 530         {
 531                 if (((char) 0x00ff&((*p)>>8)) != ' ')
 532                         break;
 533                 if ((cl = (char) 0x00ff&(*p)) != ' ')
 534                 {
 535                         if (cl != '\0') printf("%c",cl);
 536                         p++;
 537                         ii++;
 538                         break;
 539                 }
 540                 p++;
 541         }
 542         /* print the rest */
 543         for (; ii< length; ii++)
 544         {
 545                 if (!(*p))
 546                         break; /* some older devices have NULLs */
 547                 printf("%c%c",(char)0x00ff&((*p)>>8),(char)(*p)&0x00ff);
 548                 p++;
 549         }
 550         printf("\n");
 551 }
 552
 553 // Parse 512 byte disk identification block and print much crap.
 554
 555 static void identify(uint16_t *id_supplied)
 556 {
 557         uint16_t buf[256];
 558         uint16_t *val, ii, jj, kk;
 559         uint16_t like_std = 1, std = 0, min_std = 0xffff;
 560         uint16_t dev = NO_DEV, eqpt = NO_DEV;
 561         uint8_t  have_mode = 0, err_dma = 0;
 562         uint8_t  chksum = 0;
 563         uint32_t ll, mm, nn, oo;
 564         uint64_t bbbig; /* (:) */
 565         const char *strng;
 566
 567         // Adjust for endianness if necessary.
 568
 569         if (BB_BIG_ENDIAN) {
 570                 swab(id_supplied, buf, sizeof(buf));
 571                 val = buf;
 572         } else val = id_supplied;
 573
 574         chksum &= 0xff;
 575
 576         /* check if we recognise the device type */
 577         printf("\n");
 578         if (!(val[GEN_CONFIG] & NOT_ATA))
 579         {
 580                 dev = ATA_DEV;
 581                 printf("ATA device, with ");
 582         }
 583         else if (val[GEN_CONFIG]==CFA_SUPPORT_VAL)
 584         {
 585                 dev = ATA_DEV;
 586                 like_std = 4;
 587                 printf("CompactFlash ATA device, with ");
 588         }
 589         else if (!(val[GEN_CONFIG] & NOT_ATAPI))
 590         {
 591                 dev = ATAPI_DEV;
 592                 eqpt = (val[GEN_CONFIG] & EQPT_TYPE) >> SHIFT_EQPT;
 593                 printf("ATAPI %s, with ", pkt_str[eqpt]);
 594                 like_std = 3;
 595         }
 596         else
 597                 /*"Unknown device type:\n\tbits 15&14 of general configuration word 0 both set to 1.\n"*/
 598                 bb_error_msg_and_die("Unknown device type");
 599
 600         printf("%sremovable media\n", !(val[GEN_CONFIG] & MEDIA_REMOVABLE) ? "non-" : "");
 601         /* Info from the specific configuration word says whether or not the
 602          * ID command completed correctly.  It is only defined, however in
 603          * ATA/ATAPI-5 & 6; it is reserved (value theoretically 0) in prior
 604          * standards.  Since the values allowed for this word are extremely
 605          * specific, it should be safe to check it now, even though we don't
 606          * know yet what standard this device is using.
 607          */
 608         if ((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==STBY_ID_VAL) ||
 609            (val[CONFIG]==PWRD_NID_VAL) || (val[CONFIG]==PWRD_ID_VAL) )
 610         {
 611                 like_std = 5;
 612                 if ((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==STBY_ID_VAL))
 613                         printf("powers-up in standby; SET FEATURES subcmd spins-up.\n");
 614                 if (((val[CONFIG]==STBY_NID_VAL) || (val[CONFIG]==PWRD_NID_VAL)) && (val[GEN_CONFIG] & INCOMPLETE))
 615                         printf("\n\tWARNING: ID response incomplete.\n\tFollowing data may be incorrect.\n\n");
 616         }
 617
 618         /* output the model and serial numbers and the fw revision */
 619         xprint_ascii(val, START_MODEL,  "Model Number:",        LENGTH_MODEL);
 620         xprint_ascii(val, START_SERIAL, "Serial Number:",       LENGTH_SERIAL);
 621         xprint_ascii(val, START_FW_REV, "Firmware Revision:",   LENGTH_FW_REV);
 622         xprint_ascii(val, START_MEDIA,  "Media Serial Num:",    LENGTH_MEDIA);
 623         xprint_ascii(val, START_MANUF,  "Media Manufacturer:",  LENGTH_MANUF);
 624
 625         /* major & minor standards version number (Note: these words were not
 626          * defined until ATA-3 & the CDROM std uses different words.) */
 627         printf("Standards:");
 628         if (eqpt != CDROM)
 629         {
 630                 if (val[MINOR] && (val[MINOR] <= MINOR_MAX))
 631                 {
 632                         if (like_std < 3) like_std = 3;
 633                         std = actual_ver[val[MINOR]];
 634                         if (std) printf("\n\tUsed: %s ",minor_str[val[MINOR]]);
 635
 636                 }
 637                 /* looks like when they up-issue the std, they obsolete one;
 638                  * thus, only the newest 4 issues need be supported. (That's
 639                  * what "kk" and "min_std" are all about.) */
 640                 if (val[MAJOR] && (val[MAJOR] !=NOVAL_1))
 641                 {
 642                         printf("\n\tSupported: ");
 643                         jj = val[MAJOR] << 1;
 644                         kk = like_std >4 ? like_std-4: 0;
 645                         for (ii = 14; (ii >0)&&(ii>kk); ii--)
 646                         {
 647                                 if (jj & 0x8000)
 648                                 {
 649                                         printf("%u ", ii);
 650                                         if (like_std < ii)
 651                                         {
 652                                                 like_std = ii;
 653                                                 kk = like_std >4 ? like_std-4: 0;
 654                                         }
 655                                         if (min_std > ii) min_std = ii;
 656                                 }
 657                                 jj <<= 1;
 658                         }
 659                         if (like_std < 3) like_std = 3;
 660                 }
 661                 /* Figure out what standard the device is using if it hasn't told
 662                  * us.  If we know the std, check if the device is using any of
 663                  * the words from the next level up.  It happens.
 664                  */
 665                 if (like_std < std) like_std = std;
 666
 667                 if (((std == 5) || (!std && (like_std < 6))) &&
 668                         ((((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 669                         ((      val[CMDS_SUPP_1] & CMDS_W83) > 0x00ff)) ||
 670                         (((     val[CMDS_SUPP_2] & VALID) == VALID_VAL) &&
 671                         (       val[CMDS_SUPP_2] & CMDS_W84) ) ) )
 672                 {
 673                         like_std = 6;
 674                 }
 675                 else if (((std == 4) || (!std && (like_std < 5))) &&
 676                         ((((val[INTEGRITY]      & SIG) == SIG_VAL) && !chksum) ||
 677                         ((      val[HWRST_RSLT] & VALID) == VALID_VAL) ||
 678                         (((     val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 679                         ((      val[CMDS_SUPP_1] & CMDS_W83) > 0x001f)) ) )
 680                 {
 681                         like_std = 5;
 682                 }
 683                 else if (((std == 3) || (!std && (like_std < 4))) &&
 684                                 ((((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 685                                 (((     val[CMDS_SUPP_1] & CMDS_W83) > 0x0000) ||
 686                                 ((      val[CMDS_SUPP_0] & CMDS_W82) > 0x000f))) ||
 687                                 ((      val[CAPAB_1] & VALID) == VALID_VAL) ||
 688                                 ((      val[WHATS_VALID] & OK_W88) && val[ULTRA_DMA]) ||
 689                                 ((      val[RM_STAT] & RM_STAT_BITS) == RM_STAT_SUP) ) )
 690                 {
 691                         like_std = 4;
 692                 }
 693                 else if (((std == 2) || (!std && (like_std < 3))) &&
 694                            ((val[CMDS_SUPP_1] & VALID) == VALID_VAL) )
 695                 {
 696                         like_std = 3;
 697                 }
 698                 else if (((std == 1) || (!std && (like_std < 2))) &&
 699                                 ((val[CAPAB_0] & (IORDY_SUP | IORDY_OFF)) ||
 700                                 (val[WHATS_VALID] & OK_W64_70)) )
 701                 {
 702                         like_std = 2;
 703                 }
 704                 if (!std)
 705                         printf("\n\tLikely used: %u\n",like_std);
 706                 else if (like_std > std)
 707                         printf("& some of %u\n",like_std);
 708                 else
 709                         printf("\n");
 710         }
 711         else
 712         {
 713                 /* TBD: do CDROM stuff more thoroughly.  For now... */
 714                 kk = 0;
 715                 if (val[CDR_MINOR] == 9)
 716                 {
 717                         kk = 1;
 718                         printf("\n\tUsed: ATAPI for CD-ROMs, SFF-8020i, r2.5");
 719                 }
 720                 if (val[CDR_MAJOR] && (val[CDR_MAJOR] !=NOVAL_1))
 721                 {
 722                         kk = 1;
 723                         printf("\n\tSupported: CD-ROM ATAPI");
 724                         jj = val[CDR_MAJOR] >> 1;
 725                         for (ii = 1; ii <15; ii++)
 726                         {
 727                                 if (jj & 0x0001) printf("-%u ", ii);
 728                                 jj >>= 1;
 729                         }
 730                 }
 731                 printf("%s\n", (!kk) ? "\n\tLikely used CD-ROM ATAPI-1" : "" );
 732                 /* the cdrom stuff is more like ATA-2 than anything else, so: */
 733                 like_std = 2;
 734         }
 735
 736         if (min_std == 0xffff)
 737                 min_std = like_std > 4 ? like_std - 3 : 1;
 738
 739         printf("Configuration:\n");
 740         /* more info from the general configuration word */
 741         if ((eqpt != CDROM) && (like_std == 1))
 742         {
 743                 jj = val[GEN_CONFIG] >> 1;
 744                 for (ii = 1; ii < 15; ii++)
 745                 {
 746                         if (jj & 0x0001) printf("\t%s\n",ata1_cfg_str[ii]);
 747                         jj >>=1;
 748                 }
 749         }
 750         if (dev == ATAPI_DEV)
 751         {
 752                 if ((val[GEN_CONFIG] & DRQ_RESPONSE_TIME) ==  DRQ_3MS_VAL)
 753                         strng = "3ms";
 754                 else if ((val[GEN_CONFIG] & DRQ_RESPONSE_TIME) ==  DRQ_INTR_VAL)
 755                         strng = "<=10ms with INTRQ";
 756                 else if ((val[GEN_CONFIG] & DRQ_RESPONSE_TIME) ==  DRQ_50US_VAL)
 757                         strng ="50us";
 758                 else
 759                         strng = "Unknown";
 760                 printf("\tDRQ response: %s\n\tPacket size: ", strng); /* Data Request (DRQ) */
 761
 762                 if ((val[GEN_CONFIG] & PKT_SIZE_SUPPORTED) == PKT_SIZE_12_VAL)
 763                         strng = "12 bytes";
 764                 else if ((val[GEN_CONFIG] & PKT_SIZE_SUPPORTED) == PKT_SIZE_16_VAL)
 765                         strng = "16 bytes";
 766                 else
 767                         strng = "Unknown";
 768                 puts(strng);
 769         }
 770         else
 771         {
 772                 /* addressing...CHS? See section 6.2 of ATA specs 4 or 5 */
 773                 ll = (uint32_t)val[LBA_SECTS_MSB] << 16 | val[LBA_SECTS_LSB];
 774                 mm = 0; bbbig = 0;
 775                 if ( (ll > 0x00FBFC10) && (!val[LCYLS]))
 776                         printf("\tCHS addressing not supported\n");
 777                 else
 778                 {
 779                         jj = val[WHATS_VALID] & OK_W54_58;
 780                         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",
 781                                         val[LCYLS],jj?val[LCYLS_CUR]:0, val[LHEADS],jj?val[LHEADS_CUR]:0, val[LSECTS],jj?val[LSECTS_CUR]:0);
 782
 783                         if ((min_std == 1) && (val[TRACK_BYTES] || val[SECT_BYTES]))
 784                                 printf("\tbytes/track: %u\tbytes/sector: %u\n",val[TRACK_BYTES], val[SECT_BYTES]);
 785
 786                         if (jj)
 787                         {
 788                                 mm = (uint32_t)val[CAPACITY_MSB] << 16 | val[CAPACITY_LSB];
 789                                 if (like_std < 3)
 790                                 {
 791                                          /* check Endian of capacity bytes */
 792                                         nn = val[LCYLS_CUR] * val[LHEADS_CUR] * val[LSECTS_CUR];
 793                                         oo = (uint32_t)val[CAPACITY_LSB] << 16 | val[CAPACITY_MSB];
 794                                         if (abs(mm - nn) > abs(oo - nn))
 795                                                 mm = oo;
 796                                 }
 797                                 printf("\tCHS current addressable sectors:%11u\n",mm);
 798                         }
 799                 }
 800                 /* LBA addressing */
 801                 printf("\tLBA    user addressable sectors:%11u\n",ll);
 802                 if ( ((val[CMDS_SUPP_1] & VALID) == VALID_VAL) &&
 803                      (val[CMDS_SUPP_1] & SUPPORT_48_BIT) )
 804                 {
 805                         bbbig = (uint64_t)val[LBA_64_MSB]       << 48 |
 806                                 (uint64_t)val[LBA_48_MSB]       << 32 |
 807                                 (uint64_t)val[LBA_MID]  << 16 |
 808                                         val[LBA_LSB] ;
 809                         printf("\tLBA48  user addressable sectors:%11"PRIu64"\n",bbbig);
 810                 }
 811
 812                 if (!bbbig)
 813                         bbbig = (uint64_t)(ll>mm ? ll : mm); /* # 512 byte blocks */
 814                 printf("\tdevice size with M = 1024*1024: %11"PRIu64" MBytes\n",bbbig>>11);
 815                 bbbig = (bbbig<<9)/1000000;
 816                 printf("\tdevice size with M = 1000*1000: %11"PRIu64" MBytes ",bbbig);
 817
 818                 if (bbbig > 1000)
 819                         printf("(%"PRIu64" GB)\n", bbbig/1000);
 820                 else
 821                         printf("\n");
 822         }
 823
 824         /* hw support of commands (capabilities) */
 825         printf("Capabilities:\n\t");
 826
 827         if (dev == ATAPI_DEV)
 828         {
 829                 if (eqpt != CDROM && (val[CAPAB_0] & CMD_Q_SUP)) printf("Cmd queuing, ");
 830                 if (val[CAPAB_0] & OVLP_SUP) printf("Cmd overlap, ");
 831         }
 832         if (val[CAPAB_0] & LBA_SUP) printf("LBA, ");
 833
 834         if (like_std != 1)
 835         {
 836                 printf("IORDY%s(can%s be disabled)\n",
 837                                 !(val[CAPAB_0] & IORDY_SUP) ? "(may be)" : "",
 838                                 (val[CAPAB_0] & IORDY_OFF) ? "" :"not");
 839         }
 840         else
 841                 printf("no IORDY\n");
 842
 843         if ((like_std == 1) && val[BUF_TYPE])
 844         {
 845                 printf("\tBuffer type: %04x: %s%s\n", val[BUF_TYPE],
 846                                 (val[BUF_TYPE] < 2) ? "single port, single-sector" : "dual port, multi-sector",
 847                                 (val[BUF_TYPE] > 2) ? " with read caching ability" : "");
 848         }
 849
 850         if ((min_std == 1) && (val[BUFFER__SIZE] && (val[BUFFER__SIZE] != NOVAL_1)))
 851         {
 852                 printf("\tBuffer size: %.1fkB\n",(float)val[BUFFER__SIZE]/2);
 853         }
 854         if ((min_std < 4) && (val[RW_LONG]))
 855         {
 856                 printf("\tbytes avail on r/w long: %u\n",val[RW_LONG]);
 857         }
 858         if ((eqpt != CDROM) && (like_std > 3))
 859         {
 860                 printf("\tQueue depth: %u\n",(val[QUEUE_DEPTH] & DEPTH_BITS)+1);
 861         }
 862
 863         if (dev == ATA_DEV)
 864         {
 865                 if (like_std == 1)
 866                         printf("\tCan%s perform double-word IO\n",(!val[DWORD_IO]) ?"not":"");
 867                 else
 868                 {
 869                         printf("\tStandby timer values: spec'd by %s", (val[CAPAB_0] & STD_STBY) ? "Standard" : "Vendor");
 870                         if ((like_std > 3) && ((val[CAPAB_1] & VALID) == VALID_VAL))
 871                                 printf(", %s device specific minimum\n",(val[CAPAB_1] & MIN_STANDBY_TIMER)?"with":"no");
 872                         else
 873                           printf("\n");
 874                 }
 875                 printf("\tR/W multiple sector transfer: ");
 876                 if ((like_std < 3) && !(val[SECTOR_XFER_MAX] & SECTOR_XFER))
 877                         printf("not supported\n");
 878                 else
 879                 {
 880                         printf("Max = %u\tCurrent = ",val[SECTOR_XFER_MAX] & SECTOR_XFER);
 881                         if (val[SECTOR_XFER_CUR] & MULTIPLE_SETTING_VALID)
 882                                 printf("%u\n", val[SECTOR_XFER_CUR] & SECTOR_XFER);
 883                         else
 884                                 printf("?\n");
 885                 }
 886                 if ((like_std > 3) && (val[CMDS_SUPP_1] & 0x0008))
 887                 {
 888                         /* We print out elsewhere whether the APM feature is enabled or
 889                            not.  If it's not enabled, let's not repeat the info; just print
 890                            nothing here. */
 891                         printf("\tAdvancedPM level: ");
 892                         if ( (val[ADV_PWR] & 0xFF00) == 0x4000 )
 893                         {
 894                                 uint8_t apm_level = val[ADV_PWR] & 0x00FF;
 895                                 printf("%u (0x%x)\n", apm_level, apm_level);
 896                         }
 897                         else
 898                                 printf("unknown setting (0x%04x)\n", val[ADV_PWR]);
 899                 }
 900                 if (like_std > 5 && val[ACOUSTIC]) {
 901                         printf("\tRecommended acoustic management value: %u, current value: %u\n",
 902                                                                         (val[ACOUSTIC] >> 8) & 0x00ff, val[ACOUSTIC] & 0x00ff);
 903                 }
 904         }
 905         else
 906         {
 907                  /* ATAPI */
 908                 if (eqpt != CDROM && (val[CAPAB_0] & SWRST_REQ))
 909                         printf("\tATA sw reset required\n");
 910
 911                 if (val[PKT_REL] || val[SVC_NBSY])
 912                 {
 913                         printf("\tOverlap support:");
 914                         if (val[PKT_REL]) printf(" %uus to release bus.",val[PKT_REL]);
 915                         if (val[SVC_NBSY]) printf(" %uus to clear BSY after SERVICE cmd.",val[SVC_NBSY]);
 916                         printf("\n");
 917                 }
 918         }
 919
 920         /* DMA stuff. Check that only one DMA mode is selected. */
 921         printf("\tDMA: ");
 922         if (!(val[CAPAB_0] & DMA_SUP))
 923                 printf("not supported\n");
 924         else
 925         {
 926                 if (val[DMA_MODE] && !val[SINGLE_DMA] && !val[MULTI_DMA])
 927                         printf(" sdma%u\n",(val[DMA_MODE] & MODE) >> 8);
 928                 if (val[SINGLE_DMA])
 929                 {
 930                         jj = val[SINGLE_DMA];
 931                         kk = val[SINGLE_DMA] >> 8;
 932                         err_dma += mode_loop(jj,kk,'s',&have_mode);
 933                 }
 934                 if (val[MULTI_DMA])
 935                 {
 936                         jj = val[MULTI_DMA];
 937                         kk = val[MULTI_DMA] >> 8;
 938                         err_dma += mode_loop(jj,kk,'m',&have_mode);
 939                 }
 940                 if ((val[WHATS_VALID] & OK_W88) && val[ULTRA_DMA])
 941                 {
 942                         jj = val[ULTRA_DMA];
 943                         kk = val[ULTRA_DMA] >> 8;
 944                         err_dma += mode_loop(jj,kk,'u',&have_mode);
 945                 }
 946                 if (err_dma || !have_mode) printf("(?)");
 947                 printf("\n");
 948
 949                 if ((dev == ATAPI_DEV) && (eqpt != CDROM) && (val[CAPAB_0] & DMA_IL_SUP))
 950                         printf("\t\tInterleaved DMA support\n");
 951
 952                 if ((val[WHATS_VALID] & OK_W64_70) &&
 953                    (val[DMA_TIME_MIN] || val[DMA_TIME_NORM]))
 954                 {
 955                         printf("\t\tCycle time:");
 956                         if (val[DMA_TIME_MIN]) printf(" min=%uns",val[DMA_TIME_MIN]);
 957                         if (val[DMA_TIME_NORM]) printf(" recommended=%uns",val[DMA_TIME_NORM]);
 958                         printf("\n");
 959                 }
 960         }
 961
 962         /* Programmed IO stuff */
 963         printf("\tPIO: ");
 964         /* If a drive supports mode n (e.g. 3), it also supports all modes less
 965          * than n (e.g. 3, 2, 1 and 0).  Print all the modes. */
 966         if ((val[WHATS_VALID] & OK_W64_70) && (val[ADV_PIO_MODES] & PIO_SUP))
 967         {
 968                 jj = ((val[ADV_PIO_MODES] & PIO_SUP) << 3) | 0x0007;
 969                 for (ii = 0; ii <= PIO_MODE_MAX ; ii++)
 970                 {
 971                         if (jj & 0x0001) printf("pio%d ",ii);
 972                         jj >>=1;
 973                 }
 974                 printf("\n");
 975         }
 976         else if (((min_std < 5) || (eqpt == CDROM)) && (val[PIO_MODE] & MODE) )
 977         {
 978                 for (ii = 0; ii <= val[PIO_MODE]>>8; ii++)
 979                         printf("pio%d ",ii);
 980                 printf("\n");
 981         }
 982         else
 983                 printf("unknown\n");
 984
 985         if (val[WHATS_VALID] & OK_W64_70)
 986         {
 987                 if (val[PIO_NO_FLOW] || val[PIO_FLOW])
 988                 {
 989                         printf("\t\tCycle time:");
 990                         if (val[PIO_NO_FLOW]) printf(" no flow control=%uns", val[PIO_NO_FLOW]);
 991                         if (val[PIO_FLOW]) printf("  IORDY flow control=%uns", val[PIO_FLOW]);
 992                         printf("\n");
 993                 }
 994         }
 995
 996         if ((val[CMDS_SUPP_1] & VALID) == VALID_VAL)
 997         {
 998                 printf("Commands/features:\n\tEnabled\tSupported:\n");
 999                 jj = val[CMDS_SUPP_0];
1000                 kk = val[CMDS_EN_0];
1001                 for (ii = 0; ii < NUM_CMD_FEAT_STR; ii++)
1002                 {
1003                         if ((jj & 0x8000) && (*cmd_feat_str[ii] != '\0'))
1004                         {
1005                                 printf("\t%s\t%s\n", (kk & 0x8000) ? "   *" : "", cmd_feat_str[ii]);
1006                         }
1007                         jj <<=1; kk<<=1;
1008                         if (ii%16 == 15)
1009                         {
1010                                 jj = val[CMDS_SUPP_0+1+(ii/16)];
1011                                 kk = val[CMDS_EN_0+1+(ii/16)];
1012                         }
1013                         if (ii == 31)
1014                         {
1015                                 if ((val[CMDS_SUPP_2] & VALID) != VALID_VAL)
1016                                         ii +=16;
1017                         }
1018                 }
1019         }
1020         /* Removable Media Status Notification feature set */
1021         if ((val[RM_STAT] & RM_STAT_BITS) == RM_STAT_SUP)
1022                 printf("\t%s supported\n", cmd_feat_str[27]);
1023
1024
1025         /* security */
1026         if ((eqpt != CDROM) && (like_std > 3) &&
1027            (val[SECU_STATUS] || val[ERASE_TIME] || val[ENH_ERASE_TIME]))
1028         {
1029                 printf("Security:\n");
1030                 if (val[PSWD_CODE] && (val[PSWD_CODE] != NOVAL_1))
1031                         printf("\tMaster password revision code = %u\n",val[PSWD_CODE]);
1032                 jj = val[SECU_STATUS];
1033                 if (jj)
1034                 {
1035                         for (ii = 0; ii < NUM_SECU_STR; ii++)
1036                         {
1037                                 printf("\t%s\t%s\n", (!(jj & 0x0001)) ? "not" : "",  secu_str[ii]);
1038                                 jj >>=1;
1039                         }
1040                         if (val[SECU_STATUS] & SECU_ENABLED)
1041                         {
1042                                 printf("\tSecurity level %s\n", (val[SECU_STATUS] & SECU_LEVEL) ? "maximum" : "high");
1043                         }
1044                 }
1045                 jj =  val[ERASE_TIME]     & ERASE_BITS;
1046                 kk =  val[ENH_ERASE_TIME] & ERASE_BITS;
1047                 if (jj || kk)
1048                 {
1049                         printf("\t");
1050                         if (jj) printf("%umin for %sSECURITY ERASE UNIT. ", jj==ERASE_BITS ? 508 : jj<<1, "");
1051                         if (kk) printf("%umin for %sSECURITY ERASE UNIT. ", kk==ERASE_BITS ? 508 : kk<<1, "ENHANCED ");
1052                         printf("\n");
1053                 }
1054         }
1055
1056         /* reset result */
1057         jj = val[HWRST_RSLT];
1058         if ((jj & VALID) == VALID_VAL)
1059         {
1060                 if (!(oo = (jj & RST0)))
1061                         jj >>= 8;
1062                 if ((jj & DEV_DET) == JUMPER_VAL)
1063                         strng = " determined by the jumper";
1064                 else if ((jj & DEV_DET) == CSEL_VAL)
1065                         strng = " determined by CSEL";
1066                 else
1067                         strng = "";
1068                 printf("HW reset results:\n\tCBLID- %s Vih\n\tDevice num = %i%s\n",
1069                                 (val[HWRST_RSLT] & CBLID) ? "above" : "below", !(oo), strng);
1070         }
1071
1072         /* more stuff from std 5 */
1073         if ((like_std > 4) && (eqpt != CDROM))
1074         {
1075                 if (val[CFA_PWR_MODE] & VALID_W160)
1076                 {
1077                         printf("CFA power mode 1:\n\t%s%s\n", (val[CFA_PWR_MODE] & PWR_MODE_OFF) ? "disabled" : "enabled",
1078                                                                                 (val[CFA_PWR_MODE] & PWR_MODE_REQ) ? " and required by some commands" : "");
1079
1080                         if (val[CFA_PWR_MODE] & MAX_AMPS) printf("\tMaximum current = %uma\n",val[CFA_PWR_MODE] & MAX_AMPS);
1081                 }
1082                 if ((val[INTEGRITY] & SIG) == SIG_VAL)
1083                 {
1084                         printf("Checksum: %scorrect\n", chksum ? "in" : "");
1085                 }
1086         }
1087
1088         exit(EXIT_SUCCESS);
1089 }
1090 #endif
1091
1092 static int get_identity, get_geom;
1093 static int do_flush;
1094 static int do_ctimings, do_timings;
1095 static unsigned long set_readahead, get_readahead, Xreadahead;
1096 static unsigned long set_readonly, get_readonly, readonly;
1097 static unsigned long set_unmask, get_unmask, unmask;
1098 static unsigned long set_mult, get_mult, mult;
1099 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
1100 static unsigned long set_dma, get_dma, dma;
1101 #endif
1102 static unsigned long set_dma_q, get_dma_q, dma_q;
1103 static unsigned long set_nowerr, get_nowerr, nowerr;
1104 static unsigned long set_keep, get_keep, keep;
1105 static unsigned long set_io32bit, get_io32bit, io32bit;
1106 static unsigned long set_piomode, noisy_piomode;
1107 static int piomode;
1108 #ifdef HDIO_DRIVE_CMD
1109 static unsigned long set_dkeep, get_dkeep, dkeep;
1110 static unsigned long set_standby, get_standby, standby_requested;
1111 static unsigned long set_xfermode, get_xfermode;
1112 static int xfermode_requested;
1113 static unsigned long set_lookahead, get_lookahead, lookahead;
1114 static unsigned long set_prefetch, get_prefetch, prefetch;
1115 static unsigned long set_defects, get_defects, defects;
1116 static unsigned long set_wcache, get_wcache, wcache;
1117 static unsigned long set_doorlock, get_doorlock, doorlock;
1118 static unsigned long set_seagate, get_seagate;
1119 static unsigned long set_standbynow, get_standbynow;
1120 static unsigned long set_sleepnow, get_sleepnow;
1121 static unsigned long get_powermode;
1122 static unsigned long set_apmmode, get_apmmode, apmmode;
1123 #endif
1124 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
1125 static int get_IDentity;
1126 #endif
1127 #ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
1128 static unsigned long    unregister_hwif;
1129 static unsigned long    hwif;
1130 #endif
1131 #ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
1132 static unsigned long scan_hwif;
1133 static unsigned long hwif_data;
1134 static unsigned long hwif_ctrl;
1135 static unsigned long hwif_irq;
1136 #endif
1137 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1138 static unsigned long    set_busstate, get_busstate, busstate;
1139 #endif
1140 static int      reread_partn;
1141
1142 #ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
1143 static int      perform_reset;
1144 #endif /* CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET */
1145 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1146 static unsigned long    perform_tristate,       tristate;
1147 #endif /* CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
1148
1149 // Historically, if there was no HDIO_OBSOLETE_IDENTITY, then
1150 // then the HDIO_GET_IDENTITY only returned 142 bytes.
1151 // Otherwise, HDIO_OBSOLETE_IDENTITY returns 142 bytes,
1152 // and HDIO_GET_IDENTITY returns 512 bytes.  But the latest
1153 // 2.5.xx kernels no longer define HDIO_OBSOLETE_IDENTITY
1154 // (which they should, but they should just return -EINVAL).
1155 //
1156 // So.. we must now assume that HDIO_GET_IDENTITY returns 512 bytes.
1157 // On a really old system, it will not, and we will be confused.
1158 // Too bad, really.
1159
1160 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
1161 static const char * const cfg_str[] =
1162 {       "",          "HardSect",   "SoftSect",   "NotMFM",
1163         "HdSw>15uSec", "SpinMotCtl", "Fixed",     "Removeable",
1164         "DTR<=5Mbs",   "DTR>5Mbs",   "DTR>10Mbs", "RotSpdTol>.5%",
1165         "dStbOff",     "TrkOff",     "FmtGapReq", "nonMagnetic"
1166 };
1167
1168 static const char * const BuffType[] = {"Unknown", "1Sect", "DualPort", "DualPortCache"};
1169
1170 static void dump_identity(const struct hd_driveid *id)
1171 {
1172         int i;
1173         const unsigned short int *id_regs= (const void*) id;
1174
1175         printf("\n Model=%.40s, FwRev=%.8s, SerialNo=%.20s\n Config={",
1176                                 id->model, id->fw_rev, id->serial_no);
1177         for (i=0; i<=15; i++) {
1178                 if (id->config & (1<<i))
1179                         printf(" %s", cfg_str[i]);
1180         }
1181         printf( " }\n RawCHS=%u/%u/%u, TrkSize=%u, SectSize=%u, ECCbytes=%u\n"
1182                         " BuffType=(%u) %s, BuffSize=%ukB, MaxMultSect=%u",
1183                                 id->cyls, id->heads, id->sectors, id->track_bytes,
1184                                 id->sector_bytes, id->ecc_bytes,
1185                                 id->buf_type, BuffType[(id->buf_type > 3) ? 0 :  id->buf_type],
1186                                 id->buf_size/2, id->max_multsect);
1187         if (id->max_multsect)
1188         {
1189                 printf(", MultSect=");
1190                 if (!(id->multsect_valid&1))
1191                         printf("?%u?", id->multsect);
1192                 else if (id->multsect)
1193                         printf("%u", id->multsect);
1194                 else
1195                         printf("off");
1196         }
1197         printf("\n");
1198
1199         if (!(id->field_valid&1))
1200                 printf(" (maybe):");
1201
1202         printf(" CurCHS=%u/%u/%u, CurSects=%lu, LBA=%s",id->cur_cyls, id->cur_heads,
1203                                                                                                         id->cur_sectors,
1204                                                                                                         (BB_BIG_ENDIAN) ?
1205                                                                                                         (long unsigned int)(id->cur_capacity0 << 16) | id->cur_capacity1 :
1206                                                                                                         (long unsigned int)(id->cur_capacity1 << 16) | id->cur_capacity0,
1207                                                                                                         ((id->capability&2) == 0) ? "no" : "yes");
1208
1209         if (id->capability&2)
1210                 printf(", LBAsects=%u", id->lba_capacity);
1211
1212         printf("\n IORDY=%s", (id->capability&8) ? (id->capability&4) ?  "on/off" : "yes" : "no");
1213
1214         if (((id->capability&8) || (id->field_valid&2)) && id->field_valid&2)
1215                 printf(", tPIO={min:%u,w/IORDY:%u}", id->eide_pio, id->eide_pio_iordy);
1216
1217         if ((id->capability&1) && (id->field_valid&2))
1218                 printf(", tDMA={min:%u,rec:%u}", id->eide_dma_min, id->eide_dma_time);
1219
1220         printf("\n PIO modes:  ");
1221         if (id->tPIO <= 5)
1222         {
1223                 printf("pio0 ");
1224                 if (id->tPIO >= 1) printf("pio1 ");
1225                 if (id->tPIO >= 2) printf("pio2 ");
1226         }
1227         if (id->field_valid&2)
1228         {
1229                 if (id->eide_pio_modes & 1) printf("pio3 ");
1230                 if (id->eide_pio_modes & 2) printf("pio4 ");
1231                 if (id->eide_pio_modes &~3) printf("pio? ");
1232         }
1233         if (id->capability&1)
1234         {
1235                 if (id->dma_1word | id->dma_mword)
1236                 {
1237                         printf("\n DMA modes:  ");
1238                         if (id->dma_1word & 0x100) printf("*");
1239                         if (id->dma_1word & 1) printf("sdma0 ");
1240                         if (id->dma_1word & 0x200) printf("*");
1241                         if (id->dma_1word & 2) printf("sdma1 ");
1242                         if (id->dma_1word & 0x400) printf("*");
1243                         if (id->dma_1word & 4) printf("sdma2 ");
1244                         if (id->dma_1word & 0xf800) printf("*");
1245                         if (id->dma_1word & 0xf8) printf("sdma? ");
1246                         if (id->dma_mword & 0x100) printf("*");
1247                         if (id->dma_mword & 1) printf("mdma0 ");
1248                         if (id->dma_mword & 0x200) printf("*");
1249                         if (id->dma_mword & 2) printf("mdma1 ");
1250                         if (id->dma_mword & 0x400) printf("*");
1251                         if (id->dma_mword & 4) printf("mdma2 ");
1252                         if (id->dma_mword & 0xf800) printf("*");
1253                         if (id->dma_mword & 0xf8) printf("mdma? ");
1254                 }
1255         }
1256         if (((id->capability&8) || (id->field_valid&2)) && id->field_valid&4)
1257         {
1258                 printf("\n UDMA modes: ");
1259                 if (id->dma_ultra & 0x100) printf("*");
1260                 if (id->dma_ultra & 0x001) printf("udma0 ");
1261                 if (id->dma_ultra & 0x200) printf("*");
1262                 if (id->dma_ultra & 0x002) printf("udma1 ");
1263                 if (id->dma_ultra & 0x400) printf("*");
1264                 if (id->dma_ultra & 0x004) printf("udma2 ");
1265 #ifdef __NEW_HD_DRIVE_ID
1266                 if (id->hw_config & 0x2000)
1267                 {
1268 #else /* !__NEW_HD_DRIVE_ID */
1269                 if (id->word93 & 0x2000)
1270                 {
1271 #endif /* __NEW_HD_DRIVE_ID */
1272                         if (id->dma_ultra & 0x0800) printf("*");
1273                         if (id->dma_ultra & 0x0008) printf("udma3 ");
1274                         if (id->dma_ultra & 0x1000) printf("*");
1275                         if (id->dma_ultra & 0x0010) printf("udma4 ");
1276                         if (id->dma_ultra & 0x2000) printf("*");
1277                         if (id->dma_ultra & 0x0020) printf("udma5 ");
1278                         if (id->dma_ultra & 0x4000) printf("*");
1279                         if (id->dma_ultra & 0x0040) printf("udma6 ");
1280                         if (id->dma_ultra & 0x8000) printf("*");
1281                         if (id->dma_ultra & 0x0080) printf("udma7 ");
1282                 }
1283         }
1284         printf("\n AdvancedPM=%s",((id_regs[83]&8)==0)?"no":"yes");
1285         if (id_regs[83] & 8)
1286         {
1287                 if (!(id_regs[86]&8))
1288                         printf(": disabled (255)");
1289                 else if ((id_regs[91]&0xFF00)!=0x4000)
1290                         printf(": unknown setting");
1291                 else
1292                         printf(": mode=0x%02X (%u)",id_regs[91]&0xFF,id_regs[91]&0xFF);
1293         }
1294         if (id_regs[82]&0x20)
1295                 printf(" WriteCache=%s",(id_regs[85]&0x20) ? "enabled" : "disabled");
1296 #ifdef __NEW_HD_DRIVE_ID
1297         if ((id->minor_rev_num && id->minor_rev_num <= 31) || (id->major_rev_num && id->minor_rev_num <= 31))
1298         {
1299                 printf("\n Drive conforms to: %s: ", (id->minor_rev_num <= 31) ? minor_str[id->minor_rev_num] : "Unknown");
1300                 if (id->major_rev_num != 0x0000 &&  /* NOVAL_0 */
1301                     id->major_rev_num != 0xFFFF) {  /* NOVAL_1 */
1302                         for (i=0; i <= 15; i++) {
1303                                 if (id->major_rev_num & (1<<i))
1304                                                 printf(" ATA/ATAPI-%u", i);
1305                         }
1306                 }
1307         }
1308 #endif /* __NEW_HD_DRIVE_ID */
1309         printf("\n\n * current active mode\n\n");
1310 }
1311 #endif
1312
1313 static void flush_buffer_cache(int fd)
1314 {
1315         fsync(fd);                              /* flush buffers */
1316         bb_ioctl(fd, BLKFLSBUF, NULL,"BLKFLSBUF" ) ;/* do it again, big time */
1317 #ifdef HDIO_DRIVE_CMD
1318         sleep(1);
1319         if (ioctl(fd, HDIO_DRIVE_CMD, NULL) && errno != EINVAL) /* await completion */
1320                 bb_perror_msg("HDIO_DRIVE_CMD");
1321 #endif
1322 }
1323
1324 static int seek_to_zero(int fd)
1325 {
1326         if (lseek(fd, (off_t) 0, SEEK_SET))
1327                 return 1;
1328         return 0;
1329 }
1330
1331 static int read_big_block(int fd, char *buf)
1332 {
1333         int i;
1334
1335         if ((i = read(fd, buf, TIMING_BUF_BYTES)) != TIMING_BUF_BYTES) {
1336                 bb_error_msg("read(%d bytes) failed (rc=%d)", TIMING_BUF_BYTES, i);
1337                 return 1;
1338         }
1339         /* access all sectors of buf to ensure the read fully completed */
1340         for (i = 0; i < TIMING_BUF_BYTES; i += 512)
1341                 buf[i] &= 1;
1342         return 0;
1343 }
1344
1345 static void print_timing(int t, double e)
1346 {
1347         if (t >= e)  /* more than 1MB/s */
1348                 printf("%2d MB in %5.2f seconds =%6.2f %cB/sec\n", t, e, t / e, 'M');
1349         else
1350                 printf("%2d MB in %5.2f seconds =%6.2f %cB/sec\n", t, e, t / e * 1024, 'k');
1351 }
1352
1353 static int do_blkgetsize (int fd, unsigned long long *blksize64)
1354 {
1355         int             rc;
1356         unsigned int    blksize32 = 0;
1357
1358         if (0 == ioctl(fd, BLKGETSIZE64, blksize64)) {  // returns bytes
1359                 *blksize64 /= 512;
1360                 return 0;
1361         }
1362         rc = ioctl(fd, BLKGETSIZE, &blksize32); // returns sectors
1363         if (rc)
1364                 bb_perror_msg("BLKGETSIZE");
1365         *blksize64 = blksize32;
1366         return rc;
1367 }
1368
1369 static void do_time(int flag, int fd)
1370 /*
1371         flag = 0 time_cache
1372         flag = 1 time_device
1373 */
1374 {
1375         struct itimerval e1, e2;
1376         double elapsed, elapsed2;
1377         unsigned int max_iterations = 1024, total_MB, iterations;
1378         unsigned long long blksize;
1379         RESERVE_CONFIG_BUFFER(buf, TIMING_BUF_BYTES);
1380
1381         if (mlock(buf, TIMING_BUF_BYTES)) {
1382                 bb_perror_msg("mlock");
1383                 goto quit2;
1384         }
1385
1386         if (0 == do_blkgetsize(fd, &blksize)) {
1387                 max_iterations = blksize / (2 * 1024) / TIMING_BUF_MB;
1388         }
1389
1390         /* Clear out the device request queues & give them time to complete */
1391         sync();
1392         sleep(3);
1393
1394         setitimer(ITIMER_REAL, &(struct itimerval){{1000,0},{1000,0}}, NULL);
1395
1396         if (flag  == 0) /* Time cache */
1397         {
1398                 if (seek_to_zero (fd)) return;
1399                 if (read_big_block (fd, buf)) return;
1400                 printf(" Timing cached reads:   ");
1401                 fflush(stdout);
1402
1403                 /* Now do the timing */
1404                 iterations = 0;
1405                 getitimer(ITIMER_REAL, &e1);
1406                 do {
1407                         ++iterations;
1408                         if (seek_to_zero (fd) || read_big_block (fd, buf))
1409                                 goto quit;
1410                         getitimer(ITIMER_REAL, &e2);
1411                         elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
1412                         + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1413                 } while (elapsed < 2.0);
1414                 total_MB = iterations * TIMING_BUF_MB;
1415
1416                 /* Now remove the lseek() and getitimer() overheads from the elapsed time */
1417                 getitimer(ITIMER_REAL, &e1);
1418                 do {
1419                         if (seek_to_zero (fd))
1420                                 goto quit;
1421                         getitimer(ITIMER_REAL, &e2);
1422                         elapsed2 = (e1.it_value.tv_sec - e2.it_value.tv_sec)
1423                         + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1424                 } while (--iterations);
1425
1426                 elapsed -= elapsed2;
1427                 print_timing(BUFCACHE_FACTOR * total_MB, elapsed);
1428                 flush_buffer_cache(fd);
1429                 sleep(1);
1430         }
1431         else /* Time device */
1432         {
1433                 printf(" Timing buffered disk reads:  ");
1434                 fflush(stdout);
1435                 /*
1436                 * getitimer() is used rather than gettimeofday() because
1437                 * it is much more consistent (on my machine, at least).
1438                 */
1439                 /* Now do the timings for real */
1440                 iterations = 0;
1441                 getitimer(ITIMER_REAL, &e1);
1442                 do {
1443                         ++iterations;
1444                         if (read_big_block (fd, buf))
1445                                 goto quit;
1446                         getitimer(ITIMER_REAL, &e2);
1447                         elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
1448                         + ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
1449                 } while (elapsed < 3.0 && iterations < max_iterations);
1450
1451                 total_MB = iterations * TIMING_BUF_MB;
1452                 print_timing(total_MB, elapsed);
1453         }
1454 quit:
1455         munlock(buf, TIMING_BUF_BYTES);
1456 quit2:
1457         RELEASE_CONFIG_BUFFER(buf);
1458 }
1459
1460 static void on_off (unsigned int value)
1461 {
1462         printf(value ? " (on)\n" : " (off)\n");
1463 }
1464
1465 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1466 static void bus_state_value(unsigned int value)
1467 {
1468         if (value == BUSSTATE_ON)
1469                 on_off(1);
1470         else if (value == BUSSTATE_OFF)
1471                 on_off(0);
1472         else if (value == BUSSTATE_TRISTATE)
1473                 printf(" (tristate)\n");
1474         else
1475                 printf(" (unknown: %d)\n", value);
1476 }
1477 #endif
1478
1479 #ifdef HDIO_DRIVE_CMD
1480 static void interpret_standby(unsigned int standby)
1481 {
1482         unsigned int t;
1483
1484         printf(" (");
1485         if (standby == 0)
1486                 printf("off");
1487         else if (standby == 252)
1488                 printf("21 minutes");
1489         else if (standby == 253)
1490                 printf("vendor-specific");
1491         else if (standby == 254)
1492                 printf("Reserved");
1493         else if (standby == 255)
1494                 printf("21 minutes + 15 seconds");
1495         else {
1496                 if (standby <= 240) {
1497                         t = standby * 5;
1498                         printf("%u minutes + %u seconds", t / 60, t % 60);
1499                 } else if (standby <= 251) {
1500                         t = (standby - 240) * 30;
1501                         printf("%u hours + %u minutes", t / 60, t % 60);
1502                 } else
1503                         printf("illegal value");
1504         }
1505         printf(")\n");
1506 }
1507
1508 struct xfermode_entry {
1509     int val;
1510     const char *name;
1511 };
1512
1513 static const struct xfermode_entry xfermode_table[] = {
1514     { 8,    "pio0" },
1515     { 9,    "pio1" },
1516     { 10,   "pio2" },
1517     { 11,   "pio3" },
1518     { 12,   "pio4" },
1519     { 13,   "pio5" },
1520     { 14,   "pio6" },
1521     { 15,   "pio7" },
1522     { 16,   "sdma0" },
1523     { 17,   "sdma1" },
1524     { 18,   "sdma2" },
1525     { 19,   "sdma3" },
1526     { 20,   "sdma4" },
1527     { 21,   "sdma5" },
1528     { 22,   "sdma6" },
1529     { 23,   "sdma7" },
1530     { 32,   "mdma0" },
1531     { 33,   "mdma1" },
1532     { 34,   "mdma2" },
1533     { 35,   "mdma3" },
1534     { 36,   "mdma4" },
1535     { 37,   "mdma5" },
1536     { 38,   "mdma6" },
1537     { 39,   "mdma7" },
1538     { 64,   "udma0" },
1539     { 65,   "udma1" },
1540     { 66,   "udma2" },
1541     { 67,   "udma3" },
1542     { 68,   "udma4" },
1543     { 69,   "udma5" },
1544     { 70,   "udma6" },
1545     { 71,   "udma7" },
1546     { 0, NULL }
1547 };
1548
1549 static int translate_xfermode(char * name)
1550 {
1551         const struct xfermode_entry *tmp;
1552         char *endptr;
1553         int val = -1;
1554
1555
1556         for (tmp = xfermode_table; tmp->name != NULL; ++tmp)
1557         {
1558                 if (!strcmp(name, tmp->name))
1559                         return tmp->val;
1560         }
1561
1562         val = strtol(name, &endptr, 10);
1563         if (*endptr == '\0')
1564                 return val;
1565
1566         return -1;
1567 }
1568
1569 static void interpret_xfermode(unsigned int xfermode)
1570 {
1571         printf(" (");
1572         if (xfermode == 0)
1573                 printf("default PIO mode");
1574         else if (xfermode == 1)
1575                 printf("default PIO mode, disable IORDY");
1576         else if (xfermode >= 8 && xfermode <= 15)
1577                 printf("PIO flow control mode%u", xfermode-8);
1578         else if (xfermode >= 16 && xfermode <= 23)
1579                 printf("singleword DMA mode%u", xfermode-16);
1580         else if (xfermode >= 32 && xfermode <= 39)
1581                 printf("multiword DMA mode%u", xfermode-32);
1582         else if (xfermode >= 64 && xfermode <= 71)
1583                 printf("UltraDMA mode%u", xfermode-64);
1584         else
1585                 printf("Unknown");
1586         printf(")\n");
1587 }
1588 #endif /* HDIO_DRIVE_CMD */
1589
1590 static void print_flag(unsigned long flag, char *s, unsigned long value)
1591 {
1592         if (flag)
1593                 printf(" setting %s to %ld\n", s, value);
1594 }
1595
1596 static void process_dev(char *devname)
1597 {
1598         int fd;
1599         static long parm, multcount;
1600 #ifndef HDIO_DRIVE_CMD
1601         int force_operation = 0;
1602 #endif
1603         /* Please restore args[n] to these values after each ioctl
1604            except for args[2] */
1605         unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
1606         const char *fmt = " %s\t= %2ld";
1607
1608         fd = xopen(devname, O_RDONLY|O_NONBLOCK);
1609         printf("\n%s:\n", devname);
1610
1611         if (set_readahead)
1612         {
1613                 print_flag(get_readahead,"fs readahead", Xreadahead);
1614                 bb_ioctl(fd, BLKRASET,(int *)Xreadahead,"BLKRASET");
1615         }
1616 #ifdef CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
1617         if (unregister_hwif)
1618         {
1619                 printf(" attempting to unregister hwif#%lu\n", hwif);
1620                 bb_ioctl(fd, HDIO_UNREGISTER_HWIF,(int *)(unsigned long)hwif,"HDIO_UNREGISTER_HWIF");
1621         }
1622 #endif
1623 #ifdef CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF
1624         if (scan_hwif)
1625         {
1626                 printf(" attempting to scan hwif (0x%lx, 0x%lx, %lu)\n", hwif_data, hwif_ctrl, hwif_irq);
1627                 args[0] = hwif_data;
1628                 args[1] = hwif_ctrl;
1629                 args[2] = hwif_irq;
1630                 bb_ioctl(fd, HDIO_SCAN_HWIF, args, "HDIO_SCAN_HWIF");
1631                 args[0] = WIN_SETFEATURES;
1632                 args[1] = 0;
1633         }
1634 #endif
1635         if (set_piomode)
1636         {
1637                 if (noisy_piomode)
1638                 {
1639                         printf(" attempting to ");
1640                         if (piomode == 255)
1641                                 printf("auto-tune PIO mode\n");
1642                         else if (piomode < 100)
1643                                 printf("set PIO mode to %d\n", piomode);
1644                         else if (piomode < 200)
1645                                 printf("set MDMA mode to %d\n", (piomode-100));
1646                         else
1647                                 printf("set UDMA mode to %d\n", (piomode-200));
1648                 }
1649                 bb_ioctl(fd, HDIO_SET_PIO_MODE, (int *)(unsigned long)piomode, "HDIO_SET_PIO_MODE");
1650         }
1651         if (set_io32bit)
1652         {
1653                 print_flag(get_io32bit,"32-bit IO_support flag", io32bit);
1654                 bb_ioctl(fd, HDIO_SET_32BIT, (int *)io32bit, "HDIO_SET_32BIT");
1655         }
1656         if (set_mult)
1657         {
1658                 print_flag(get_mult, "multcount", mult);
1659 #ifdef HDIO_DRIVE_CMD
1660                 bb_ioctl(fd, HDIO_SET_MULTCOUNT, &mult, "HDIO_SET_MULTCOUNT");
1661 #else
1662                 force_operation |= (!bb_ioctl(fd, HDIO_SET_MULTCOUNT, &mult, "HDIO_SET_MULTCOUNT"));
1663 #endif
1664         }
1665         if (set_readonly)
1666         {
1667                 print_flag_on_off(get_readonly,"readonly", readonly);
1668                 bb_ioctl(fd, BLKROSET, &readonly, "BLKROSET");
1669         }
1670         if (set_unmask)
1671         {
1672                 print_flag_on_off(get_unmask,"unmaskirq", unmask);
1673                 bb_ioctl(fd, HDIO_SET_UNMASKINTR, (int *)unmask, "HDIO_SET_UNMASKINTR");
1674         }
1675 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
1676         if (set_dma)
1677         {
1678                 print_flag_on_off(get_dma, "using_dma", dma);
1679                 bb_ioctl(fd, HDIO_SET_DMA, (int *)dma, "HDIO_SET_DMA");
1680         }
1681 #endif /* CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA */
1682         if (set_dma_q)
1683         {
1684                 print_flag_on_off(get_dma_q,"DMA queue_depth", dma_q);
1685                 bb_ioctl(fd, HDIO_SET_QDMA, (int *)dma_q, "HDIO_SET_QDMA");
1686         }
1687         if (set_nowerr)
1688         {
1689                 print_flag_on_off(get_nowerr,"nowerr", nowerr);
1690                 bb_ioctl(fd, HDIO_SET_NOWERR, (int *)nowerr,"HDIO_SET_NOWERR");
1691         }
1692         if (set_keep)
1693         {
1694                 print_flag_on_off(get_keep,"keep_settings", keep);
1695                 bb_ioctl(fd, HDIO_SET_KEEPSETTINGS, (int *)keep,"HDIO_SET_KEEPSETTINGS");
1696         }
1697 #ifdef HDIO_DRIVE_CMD
1698         if (set_doorlock)
1699         {
1700                 args[0] = doorlock ? WIN_DOORLOCK : WIN_DOORUNLOCK;
1701                 args[2] = 0;
1702                 print_flag_on_off(get_doorlock,"drive doorlock", doorlock);
1703                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(doorlock)");
1704                 args[0] = WIN_SETFEATURES;
1705         }
1706         if (set_dkeep)
1707         {
1708                 /* lock/unlock the drive's "feature" settings */
1709                 print_flag_on_off(get_dkeep,"drive keep features", dkeep);
1710                 args[2] = dkeep ? 0x66 : 0xcc;
1711                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(keepsettings)");
1712         }
1713         if (set_defects)
1714         {
1715                 args[2] = defects ? 0x04 : 0x84;
1716                 print_flag(get_defects,"drive defect-mgmt", defects);
1717                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(defectmgmt)");
1718         }
1719         if (set_prefetch)
1720         {
1721                 args[1] = prefetch;
1722                 args[2] = 0xab;
1723                 print_flag(get_prefetch,"drive prefetch", prefetch);
1724                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setprefetch)");
1725                 args[1] = 0;
1726         }
1727         if (set_xfermode)
1728         {
1729                 args[1] = xfermode_requested;
1730                 args[2] = 3;
1731                 if (get_xfermode)
1732                 {
1733                         print_flag(1,"xfermode", xfermode_requested);
1734                         interpret_xfermode(xfermode_requested);
1735                 }
1736                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(setxfermode)");
1737                 args[1] = 0;
1738         }
1739         if (set_lookahead)
1740         {
1741                 args[2] = lookahead ? 0xaa : 0x55;
1742                 print_flag_on_off(get_lookahead,"drive read-lookahead", lookahead);
1743                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setreadahead)");
1744         }
1745         if (set_apmmode)
1746         {
1747                 args[2] = (apmmode == 255) ? 0x85 /* disable */ : 0x05 /* set */; /* feature register */
1748                 args[1] = apmmode; /* sector count register 1-255 */
1749                 if (get_apmmode)
1750                         printf(" setting APM level to %s 0x%02lX (%ld)\n", (apmmode == 255) ? "disabled" : "", apmmode, apmmode);
1751                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD");
1752                 args[1] = 0;
1753         }
1754         if (set_wcache)
1755         {
1756 #ifdef DO_FLUSHCACHE
1757 #ifndef WIN_FLUSHCACHE
1758 #define WIN_FLUSHCACHE 0xe7
1759 #endif
1760                 static unsigned char flushcache[4] = {WIN_FLUSHCACHE,0,0,0};
1761 #endif /* DO_FLUSHCACHE */
1762                 args[2] = wcache ? 0x02 : 0x82;
1763                 print_flag_on_off(get_wcache,"drive write-caching", wcache);
1764 #ifdef DO_FLUSHCACHE
1765                 if (!wcache)
1766                         bb_ioctl(fd, HDIO_DRIVE_CMD, &flushcache, "HDIO_DRIVE_CMD(flushcache)");
1767 #endif /* DO_FLUSHCACHE */
1768                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setcache)");
1769 #ifdef DO_FLUSHCACHE
1770                 if (!wcache)
1771                         bb_ioctl(fd, HDIO_DRIVE_CMD, &flushcache, "HDIO_DRIVE_CMD(flushcache)");
1772 #endif /* DO_FLUSHCACHE */
1773         }
1774
1775         /* In code below, we do not preserve args[0], but the rest
1776            is preserved, including args[2] */
1777         args[2] = 0;
1778
1779         if (set_standbynow)
1780         {
1781 #ifndef WIN_STANDBYNOW1
1782 #define WIN_STANDBYNOW1 0xE0
1783 #endif
1784 #ifndef WIN_STANDBYNOW2
1785 #define WIN_STANDBYNOW2 0x94
1786 #endif
1787                 if (get_standbynow) printf(" issuing standby command\n");
1788                 args[0] = WIN_STANDBYNOW1;
1789                 bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_STANDBYNOW2, "HDIO_DRIVE_CMD(standby)");
1790         }
1791         if (set_sleepnow)
1792         {
1793 #ifndef WIN_SLEEPNOW1
1794 #define WIN_SLEEPNOW1 0xE6
1795 #endif
1796 #ifndef WIN_SLEEPNOW2
1797 #define WIN_SLEEPNOW2 0x99
1798 #endif
1799                 if (get_sleepnow) printf(" issuing sleep command\n");
1800                 args[0] = WIN_SLEEPNOW1;
1801                 bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_SLEEPNOW2, "HDIO_DRIVE_CMD(sleep)");
1802         }
1803         if (set_seagate)
1804         {
1805                 args[0] = 0xfb;
1806                 if (get_seagate) printf(" disabling Seagate auto powersaving mode\n");
1807                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(seagatepwrsave)");
1808         }
1809         if (set_standby)
1810         {
1811                 args[0] = WIN_SETIDLE1;
1812                 args[1] = standby_requested;
1813                 if (get_standby)
1814                 {
1815                         print_flag(1,"standby", standby_requested);
1816                         interpret_standby(standby_requested);
1817                 }
1818                 bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setidle1)");
1819                 args[1] = 0;
1820         }
1821 #else   /* HDIO_DRIVE_CMD */
1822         if (force_operation)
1823         {
1824                 char buf[512];
1825                 flush_buffer_cache(fd);
1826                 if (-1 == read(fd, buf, sizeof(buf)))
1827                         bb_perror_msg("read(%d bytes) failed (rc=%d)", sizeof(buf), -1);
1828         }
1829 #endif  /* HDIO_DRIVE_CMD */
1830
1831         if (get_mult || get_identity)
1832         {
1833                 multcount = -1;
1834                 if (ioctl(fd, HDIO_GET_MULTCOUNT, &multcount))
1835                 {
1836                         if (get_mult)
1837                                 bb_perror_msg("HDIO_GET_MULTCOUNT");
1838                 }
1839                 else if (get_mult)
1840                 {
1841                         printf(fmt, "multcount", multcount);
1842                         on_off(multcount);
1843                 }
1844         }
1845         if (get_io32bit)
1846         {
1847                 if (!bb_ioctl(fd, HDIO_GET_32BIT, &parm, "HDIO_GET_32BIT"))
1848                 {
1849                         printf(" IO_support\t=%3ld (", parm);
1850                         if (parm == 0)
1851                                 printf("default 16-bit)\n");
1852                         else if (parm == 2)
1853                                 printf("16-bit)\n");
1854                         else if (parm == 1)
1855                                 printf("32-bit)\n");
1856                         else if (parm == 3)
1857                                 printf("32-bit w/sync)\n");
1858                         else if (parm == 8)
1859                                 printf("Request-Queue-Bypass)\n");
1860                         else
1861                                 printf("\?\?\?)\n");
1862                 }
1863         }
1864         if (get_unmask)
1865         {
1866                 bb_ioctl_on_off(fd, HDIO_GET_UNMASKINTR,(unsigned long *)parm,
1867                                                 "HDIO_GET_UNMASKINTR","unmaskirq");
1868         }
1869
1870
1871 #ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
1872         if (get_dma) {
1873                 if (!bb_ioctl(fd, HDIO_GET_DMA, &parm, "HDIO_GET_DMA"))
1874                 {
1875                         printf(fmt, "using_dma", parm);
1876                         if (parm == 8)
1877                                 printf(" (DMA-Assisted-PIO)\n");
1878                         else
1879                                 on_off(parm);
1880                 }
1881         }
1882 #endif
1883         if (get_dma_q)
1884         {
1885                 bb_ioctl_on_off (fd, HDIO_GET_QDMA,(unsigned long *)parm,
1886                                                   "HDIO_GET_QDMA","queue_depth");
1887         }
1888         if (get_keep)
1889         {
1890                 bb_ioctl_on_off (fd, HDIO_GET_KEEPSETTINGS,(unsigned long *)parm,
1891                                                         "HDIO_GET_KEEPSETTINGS","keepsettings");
1892         }
1893
1894         if (get_nowerr)
1895         {
1896                 bb_ioctl_on_off  (fd, HDIO_GET_NOWERR,(unsigned long *)&parm,
1897                                                         "HDIO_GET_NOWERR","nowerr");
1898         }
1899         if (get_readonly)
1900         {
1901                 bb_ioctl_on_off(fd, BLKROGET,(unsigned long *)parm,
1902                                                   "BLKROGET","readonly");
1903         }
1904         if (get_readahead)
1905         {
1906                 bb_ioctl_on_off (fd, BLKRAGET, (unsigned long *) parm,
1907                                                         "BLKRAGET","readahead");
1908         }
1909         if (get_geom)
1910         {
1911                 if (!bb_ioctl(fd, BLKGETSIZE, &parm, "BLKGETSIZE"))
1912                 {
1913                         struct hd_geometry g;
1914
1915                         if (!bb_ioctl(fd, HDIO_GETGEO, &g, "HDIO_GETGEO"))
1916                                 printf(" geometry\t= %u/%u/%u, sectors = %ld, start = %ld\n",
1917                                                 g.cylinders, g.heads, g.sectors, parm, g.start);
1918                 }
1919         }
1920 #ifdef HDIO_DRIVE_CMD
1921         if (get_powermode)
1922         {
1923 #ifndef WIN_CHECKPOWERMODE1
1924 #define WIN_CHECKPOWERMODE1 0xE5
1925 #endif
1926 #ifndef WIN_CHECKPOWERMODE2
1927 #define WIN_CHECKPOWERMODE2 0x98
1928 #endif
1929                 const char *state;
1930
1931                 args[0] = WIN_CHECKPOWERMODE1;
1932                 if (bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_CHECKPOWERMODE2, 0))
1933                 {
1934                         if (errno != EIO || args[0] != 0 || args[1] != 0)
1935                                 state = "Unknown";
1936                         else
1937                                 state = "sleeping";
1938                 }
1939                 else
1940                         state = (args[2] == 255) ? "active/idle" : "standby";
1941                 args[1] = args[2] = 0;
1942
1943                 printf(" drive state is:  %s\n", state);
1944         }
1945 #endif
1946 #ifdef CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET
1947         if (perform_reset)
1948         {
1949                 bb_ioctl(fd, HDIO_DRIVE_RESET, NULL, "HDIO_DRIVE_RESET");
1950         }
1951 #endif /* CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET */
1952 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1953         if (perform_tristate)
1954         {
1955                 args[0] = 0;
1956                 args[1] = tristate;
1957                 bb_ioctl(fd, HDIO_TRISTATE_HWIF, &args, "HDIO_TRISTATE_HWIF");
1958         }
1959 #endif /* CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
1960 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
1961         if (get_identity)
1962         {
1963                 static struct hd_driveid id;
1964
1965                 if (!ioctl(fd, HDIO_GET_IDENTITY, &id))
1966                 {
1967                         if (multcount != -1)
1968                         {
1969                                 id.multsect = multcount;
1970                                 id.multsect_valid |= 1;
1971                         }
1972                         else
1973                                 id.multsect_valid &= ~1;
1974                         dump_identity(&id);
1975                 }
1976                 else if (errno == -ENOMSG)
1977                         printf(" no identification info available\n");
1978                 else
1979                         bb_perror_msg("HDIO_GET_IDENTITY");
1980         }
1981
1982         if (get_IDentity)
1983         {
1984                 unsigned char args1[4+512]; /* = { ... } will eat 0.5k of rodata! */
1985
1986                 memset(args1, 0, sizeof(args1));
1987                 args1[0] = WIN_IDENTIFY;
1988                 args1[3] = 1;
1989                 if (!bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args1, WIN_PIDENTIFY, "HDIO_DRIVE_CMD(identify)"))
1990                         identify((void *)(args1 + 4));
1991         }
1992 #endif
1993 #ifdef CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
1994         if (set_busstate)
1995         {
1996                 if (get_busstate)
1997                 {
1998                         print_flag(1, "bus state", busstate);
1999                         bus_state_value(busstate);
2000                 }
2001                 bb_ioctl(fd, HDIO_SET_BUSSTATE, (int *)(unsigned long)busstate, "HDIO_SET_BUSSTATE");
2002         }
2003         if (get_busstate)
2004         {
2005                 if (!bb_ioctl(fd, HDIO_GET_BUSSTATE, &parm, "HDIO_GET_BUSSTATE"))
2006                 {
2007                         printf(fmt, "bus state", parm);
2008                         bus_state_value(parm);
2009                 }
2010         }
2011 #endif
2012         if (reread_partn)
2013                 bb_ioctl(fd, BLKRRPART, NULL, "BLKRRPART");
2014
2015
2016         if (do_ctimings)
2017                 do_time(0,fd);          /*time cache  */
2018         if (do_timings)
2019                 do_time(1,fd);          /*time device */
2020         if (do_flush)
2021                 flush_buffer_cache(fd);
2022         close(fd);
2023 }
2024
2025 #ifdef CONFIG_FEATURE_HDPARM_GET_IDENTITY
2026 static int fromhex(unsigned char c)
2027 {
2028         if (c >= 'a' && c <= 'f')
2029                 return 10 + (c - 'a');
2030         if (c >= '0' && c <= '9')
2031                 return (c - '0');
2032         bb_error_msg_and_die("bad char: '%c' 0x%02x", c, c);
2033 }
2034
2035 static void identify_from_stdin(void)
2036 {
2037         uint16_t sbuf[256];
2038         unsigned char  buf[1280], *b = (unsigned char *)buf;
2039         int i, count = read(0, buf, 1280);
2040
2041         if (count != 1280)
2042                 bb_error_msg_and_die("read(%d bytes) failed (rc=%d)", 1280, count);
2043
2044         // Convert the newline-separated hex data into an identify block.
2045
2046         for (i = 0; i<256; i++)
2047         {
2048                 int j;
2049                 for(j=0;j<4;j++) sbuf[i] = (sbuf[i] <<4) + fromhex(*(b++));
2050         }
2051
2052         // Parse the data.
2053
2054         identify(sbuf);
2055 }
2056 #endif
2057
2058 /* busybox specific stuff */
2059 static void parse_opts(unsigned long *get, unsigned long *set, unsigned long *value, int min, int max)
2060 {
2061         if (get) {
2062                 *get = 1;
2063         }
2064         if (optarg) {
2065                 *set = 1;
2066                 *value = bb_xgetlarg(optarg, 10, min, max);
2067         }
2068 }
2069
2070 static void parse_xfermode(int flag, unsigned long *get, unsigned long *set, int *value)
2071 {
2072         if (flag) {
2073                 *get = 1;
2074                 if (optarg) {
2075                         *set = ((*value = translate_xfermode(optarg)) > -1);
2076                 }
2077         }
2078 }
2079
2080 /*------- getopt short options --------*/
2081 static const char hdparm_options[] = "gfu::n::p:r::m::c::k::a::B:tTh"
2082         USE_FEATURE_HDPARM_GET_IDENTITY("iI")
2083         USE_FEATURE_HDPARM_HDIO_GETSET_DMA("d::")
2084 #ifdef HDIO_DRIVE_CMD
2085         "S:D:P:X:K:A:L:W:CyYzZ"
2086 #endif
2087         USE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF("U:")
2088 #ifdef HDIO_GET_QDMA
2089 #ifdef HDIO_SET_QDMA
2090         "Q:"
2091 #else
2092         "Q"
2093 #endif
2094 #endif
2095         USE_FEATURE_HDPARM_HDIO_DRIVE_RESET("w")
2096         USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF("x::b:")
2097         USE_FEATURE_HDPARM_HDIO_SCAN_HWIF("R:");
2098 /*-------------------------------------*/
2099
2100 /* our main() routine: */
2101 int hdparm_main(int argc, char **argv) ATTRIBUTE_NORETURN;
2102 int hdparm_main(int argc, char **argv)
2103 {
2104         int c;
2105         int flagcount = 0;
2106
2107         while ((c = getopt(argc, argv, hdparm_options)) >= 0) {
2108                 flagcount++;
2109                 if (c == 'h') bb_show_usage(); /* EXIT */
2110                 USE_FEATURE_HDPARM_GET_IDENTITY(get_IDentity |= (c == 'I'));
2111                 USE_FEATURE_HDPARM_GET_IDENTITY(get_identity |= (c == 'i'));
2112                 get_geom |= (c == 'g');
2113                 do_flush |= (c == 'f');
2114                 if (c == 'u') parse_opts(&get_unmask, &set_unmask, &unmask, 0, 1);
2115                 USE_FEATURE_HDPARM_HDIO_GETSET_DMA(if (c == 'd') parse_opts(&get_dma, &set_dma, &dma, 0, 9));
2116                 if (c == 'n') parse_opts(&get_nowerr, &set_nowerr, &nowerr, 0, 1);
2117                 parse_xfermode((c == 'p'),&noisy_piomode, &set_piomode, &piomode);
2118                 if (c == 'r') parse_opts(&get_readonly, &set_readonly, &readonly, 0, 1);
2119                 if (c == 'm') parse_opts(&get_mult, &set_mult, &mult, 0, INT_MAX /*32*/);
2120                 if (c == 'c') parse_opts(&get_io32bit, &set_io32bit, &io32bit, 0, INT_MAX /*8*/);
2121                 if (c == 'k') parse_opts(&get_keep, &set_keep, &keep, 0, 1);
2122                 if (c == 'a') parse_opts(&get_readahead, &set_readahead, &Xreadahead, 0, INT_MAX);
2123                 if (c == 'B') parse_opts(&get_apmmode, &set_apmmode, &apmmode, 1, 255);
2124                 do_flush |= do_timings |= (c == 't');
2125                 do_flush |= do_ctimings |= (c == 'T');
2126 #ifdef HDIO_DRIVE_CMD
2127                 if (c == 'S') parse_opts(&get_standby, &set_standby, &standby_requested, 0, INT_MAX);
2128                 if (c == 'D') parse_opts(&get_defects, &set_defects, &defects, 0, INT_MAX);
2129                 if (c == 'P') parse_opts(&get_prefetch, &set_prefetch, &prefetch, 0, INT_MAX);
2130                 parse_xfermode((c == 'X'), &get_xfermode, &set_xfermode, &xfermode_requested);
2131                 if (c == 'K') parse_opts(&get_dkeep, &set_dkeep, &prefetch, 0, 1);
2132                 if (c == 'A') parse_opts(&get_lookahead, &set_lookahead, &lookahead, 0, 1);
2133                 if (c == 'L') parse_opts(&get_doorlock, &set_doorlock, &doorlock, 0, 1);
2134                 if (c == 'W') parse_opts(&get_wcache, &set_wcache, &wcache, 0, 1);
2135                 get_powermode |= (c == 'C');
2136                 get_standbynow = set_standbynow |= (c == 'y');
2137                 get_sleepnow = set_sleepnow |= (c == 'Y');
2138                 reread_partn |= (c == 'z');
2139                 get_seagate = set_seagate |= (c == 'Z');
2140 #endif
2141                 USE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF(if (c == 'U') parse_opts(NULL, &unregister_hwif, &hwif, 0, INT_MAX));
2142 #ifdef HDIO_GET_QDMA
2143                 if (c == 'Q') {
2144 #ifdef HDIO_SET_QDMA
2145                         parse_opts(&get_dma_q, &set_dma_q, &dma_q, 0, INT_MAX);
2146 #else
2147                         parse_opts(&get_dma_q, NULL, NULL, 0, 0);
2148 #endif
2149                 }
2150 #endif
2151                 USE_FEATURE_HDPARM_HDIO_DRIVE_RESET(perform_reset = (c == 'r'));
2152                 USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF(if (c == 'x') parse_opts(NULL, &perform_tristate, &tristate, 0, 1));
2153                 USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF(if (c == 'b') parse_opts(&get_busstate, &set_busstate, &busstate, 0, 2));
2154 #if ENABLE_FEATURE_HDPARM_HDIO_SCAN_HWIF
2155                 if (c == 'R') {
2156                         parse_opts(NULL, &scan_hwif, &hwif_data, 0, INT_MAX);
2157                         hwif_ctrl = bb_xgetlarg((argv[optind]) ? argv[optind] : "", 10, 0, INT_MAX);
2158                         hwif_irq  = bb_xgetlarg((argv[optind+1]) ? argv[optind+1] : "", 10, 0, INT_MAX);
2159                         /* Move past the 2 additional arguments */
2160                         argv += 2;
2161                         argc -= 2;
2162                 }
2163 #endif
2164         }
2165         /* When no flags are given (flagcount = 0), -acdgkmnru is assumed. */
2166         if (!flagcount) {
2167                 get_mult = get_io32bit = get_unmask = get_keep = get_readonly = get_readahead = get_geom = 1;
2168                 USE_FEATURE_HDPARM_HDIO_GETSET_DMA(get_dma = 1);
2169         }
2170         argc -= optind;
2171         argv += optind;
2172
2173         if (argc < 1) {
2174                 if (ENABLE_FEATURE_HDPARM_GET_IDENTITY && !isatty(STDIN_FILENO))
2175                         identify_from_stdin(); /* EXIT */
2176                 else bb_show_usage();
2177         }
2178
2179         while (argc--) {
2180                 process_dev(*argv);
2181                 argv++;
2182         }
2183         exit(EXIT_SUCCESS);
2184 }