diff options
author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-09-27 14:20:47 +0400 |
---|---|---|
committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-09-27 14:20:47 +0400 |
commit | 4daad9004d8f07991516970a1cbd77756fae7041 (patch) | |
tree | f1a17e4b168ef8fdf8af92ac5ce8deba89d38db2 /miscutils/hdparm.c | |
parent | 1acdc89e992eb3f0548ff48ba586b31c9a0ae232 (diff) |
introduce bb_putchar(). saves ~1800 on uclibc (less on glibc).
Diffstat (limited to 'miscutils/hdparm.c')
-rw-r--r-- | miscutils/hdparm.c | 113 |
1 files changed, 51 insertions, 62 deletions
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c index b3c240835..396328f72 100644 --- a/miscutils/hdparm.c +++ b/miscutils/hdparm.c @@ -482,19 +482,43 @@ static void print_value_on_off(const char *str, unsigned long argp) } #if ENABLE_FEATURE_HDPARM_GET_IDENTITY -static void print_ascii(uint16_t *p, uint8_t length); +static void print_ascii(const char *p, int length) +{ +#if BB_BIG_ENDIAN +#define LE_ONLY(x) + enum { ofs = 0 }; +#else +#define LE_ONLY(x) x + /* every 16bit word is big-endian (i.e. inverted) */ + /* accessing bytes in 1,0, 3,2, 5,4... sequence */ + int ofs = 1; +#endif + + length *= 2; + /* find first non-space & print it */ + while (length && p[ofs] != ' ') { + p++; + LE_ONLY(ofs = -ofs;) + length--; + } + while (length && p[ofs]) { + bb_putchar(p[ofs]); + p++; + LE_ONLY(ofs = -ofs;) + length--; + } + bb_putchar('\n'); +#undef LE_ONLY +} static void xprint_ascii(uint16_t *val, int i, const char *string, int n) { if (val[i]) { printf("\t%-20s", string); - print_ascii(&val[i], n); + print_ascii((void*)&val[i], n); } } -#endif -/* end of busybox specific stuff */ -#if ENABLE_FEATURE_HDPARM_GET_IDENTITY static uint8_t mode_loop(uint16_t mode_sup, uint16_t mode_sel, int cc, uint8_t *have_mode) { uint16_t ii; @@ -515,41 +539,11 @@ static uint8_t mode_loop(uint16_t mode_sup, uint16_t mode_sel, int cc, uint8_t * return err_dma; } -static void print_ascii(uint16_t *p, uint8_t length) -{ - uint8_t ii; - char cl; - - /* find first non-space & print it */ - for (ii = 0; ii < length; ii++) { - if ((char)((*p)>>8) != ' ') - break; - cl = (char)(*p); - if (cl != ' ') { - if (cl != '\0') - printf("%c", cl); - p++; - ii++; - break; - } - p++; - } - /* print the rest */ - for (; ii< length; ii++) { - if (!(*p)) - break; /* some older devices have NULLs */ - printf("%c%c", (char)((*p)>>8), (char)(*p)); - p++; - } - puts(""); -} - // Parse 512 byte disk identification block and print much crap. -static void identify(uint16_t *id_supplied) +static void identify(uint16_t *val) { - uint16_t buf[256]; - uint16_t *val, ii, jj, kk; + uint16_t ii, jj, kk; uint16_t like_std = 1, std = 0, min_std = 0xffff; uint16_t dev = NO_DEV, eqpt = NO_DEV; uint8_t have_mode = 0, err_dma = 0; @@ -557,19 +551,15 @@ static void identify(uint16_t *id_supplied) uint32_t ll, mm, nn, oo; uint64_t bbbig; /* (:) */ const char *strng; +#if BB_BIG_ENDIAN + uint16_t buf[256]; - // Adjust for endianness if necessary. - - if (BB_BIG_ENDIAN) { - swab(id_supplied, buf, sizeof(buf)); - val = buf; - } else - val = id_supplied; - - chksum &= 0xff; - + // Adjust for endianness + swab(val, buf, sizeof(buf)); + val = buf; +#endif /* check if we recognise the device type */ - puts(""); + bb_putchar('\n'); if (!(val[GEN_CONFIG] & NOT_ATA)) { dev = ATA_DEV; printf("ATA device, with "); @@ -686,7 +676,7 @@ static void identify(uint16_t *id_supplied) else if (like_std > std) printf("& some of %u\n", like_std); else - puts(""); + bb_putchar('\n'); } else { /* TBD: do CDROM stuff more thoroughly. For now... */ kk = 0; @@ -786,7 +776,7 @@ static void identify(uint16_t *id_supplied) if (bbbig > 1000) printf("(%"PRIu64" GB)\n", bbbig/1000); else - puts(""); + bb_putchar('\n'); } /* hw support of commands (capabilities) */ @@ -829,7 +819,7 @@ static void identify(uint16_t *id_supplied) if ((like_std > 3) && ((val[CAPAB_1] & VALID) == VALID_VAL)) printf(", %s device specific minimum\n", (val[CAPAB_1] & MIN_STANDBY_TIMER) ? "with" : "no"); else - puts(""); + bb_putchar('\n'); } printf("\tR/W multiple sector transfer: "); if ((like_std < 3) && !(val[SECTOR_XFER_MAX] & SECTOR_XFER)) @@ -866,7 +856,7 @@ static void identify(uint16_t *id_supplied) printf("\tOverlap support:"); if (val[PKT_REL]) printf(" %uus to release bus.", val[PKT_REL]); if (val[SVC_NBSY]) printf(" %uus to clear BSY after SERVICE cmd.", val[SVC_NBSY]); - puts(""); + bb_putchar('\n'); } } @@ -893,7 +883,7 @@ static void identify(uint16_t *id_supplied) err_dma += mode_loop(jj, kk, 'u', &have_mode); } if (err_dma || !have_mode) printf("(?)"); - puts(""); + bb_putchar('\n'); if ((dev == ATAPI_DEV) && (eqpt != CDROM) && (val[CAPAB_0] & DMA_IL_SUP)) printf("\t\tInterleaved DMA support\n"); @@ -904,7 +894,7 @@ static void identify(uint16_t *id_supplied) printf("\t\tCycle time:"); if (val[DMA_TIME_MIN]) printf(" min=%uns", val[DMA_TIME_MIN]); if (val[DMA_TIME_NORM]) printf(" recommended=%uns", val[DMA_TIME_NORM]); - puts(""); + bb_putchar('\n'); } } @@ -918,11 +908,11 @@ static void identify(uint16_t *id_supplied) if (jj & 0x0001) printf("pio%d ", ii); jj >>=1; } - puts(""); + bb_putchar('\n'); } else if (((min_std < 5) || (eqpt == CDROM)) && (val[PIO_MODE] & MODE)) { for (ii = 0; ii <= val[PIO_MODE]>>8; ii++) printf("pio%d ", ii); - puts(""); + bb_putchar('\n'); } else printf("unknown\n"); @@ -931,7 +921,7 @@ static void identify(uint16_t *id_supplied) printf("\t\tCycle time:"); if (val[PIO_NO_FLOW]) printf(" no flow control=%uns", val[PIO_NO_FLOW]); if (val[PIO_FLOW]) printf(" IORDY flow control=%uns", val[PIO_FLOW]); - puts(""); + bb_putchar('\n'); } } @@ -982,7 +972,7 @@ static void identify(uint16_t *id_supplied) printf("\t"); if (jj) printf("%umin for %sSECURITY ERASE UNIT. ", jj==ERASE_BITS ? 508 : jj<<1, ""); if (kk) printf("%umin for %sSECURITY ERASE UNIT. ", kk==ERASE_BITS ? 508 : kk<<1, "ENHANCED "); - puts(""); + bb_putchar('\n'); } } @@ -1134,7 +1124,7 @@ static void dump_identity(const struct hd_driveid *id) else printf("off"); } - puts(""); + bb_putchar('\n'); if (!(id->field_valid & 1)) printf(" (maybe):"); @@ -1905,7 +1895,7 @@ static void parse_xfermode(int flag, smallint *get, smallint *set, int *value) /*------- getopt short options --------*/ static const char hdparm_options[] ALIGN1 = - "gfu::n::p:r::m::c::k::a::B:tTh" + "gfu::n::p:r::m::c::k::a::B:tT" USE_FEATURE_HDPARM_GET_IDENTITY("iI") USE_FEATURE_HDPARM_HDIO_GETSET_DMA("d::") #ifdef HDIO_DRIVE_CMD @@ -1933,7 +1923,6 @@ int hdparm_main(int argc, char **argv) while ((c = getopt(argc, argv, hdparm_options)) >= 0) { flagcount++; - if (c == 'h') bb_show_usage(); /* EXIT */ USE_FEATURE_HDPARM_GET_IDENTITY(get_IDentity |= (c == 'I')); USE_FEATURE_HDPARM_GET_IDENTITY(get_identity |= (c == 'i')); get_geom |= (c == 'g'); @@ -1999,7 +1988,7 @@ int hdparm_main(int argc, char **argv) if (!*argv) { if (ENABLE_FEATURE_HDPARM_GET_IDENTITY && !isatty(STDIN_FILENO)) identify_from_stdin(); /* EXIT */ - else bb_show_usage(); + bb_show_usage(); } do { |