hdparm: flag variables can easily be smaller than long

function                                             old     new   delta
process_dev                                         5247    5325     +78
bb_ioctl_on_off                                       72      78      +6
unregister_hwif                                        4       1      -3
...
perform_reset                                          4       1      -3
parse_xfermode                                       111     108      -3
noisy_piomode                                          4       1      -3
...
do_flush                                               4       1      -3
do_ctimings                                            4       1      -3
static.parm                                            4       -      -4
static.multcount                                       4       -      -4
parse_opts                                            54      48      -6
hdparm_main                                         1435    1383     -52
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/61 up/down: 84/-243)         Total: -159 bytes
This commit is contained in:
Denis Vlasenko 2007-03-28 01:00:45 +00:00
parent 7c282a2078
commit 0eec4abb13

View File

@ -459,9 +459,12 @@ static int bb_ioctl_alt(int fd, int cmd, unsigned char *args, int alt, const cha
return bb_ioctl(fd, cmd, args, string);
}
static void on_off(unsigned int value);
static void on_off(int value)
{
printf(value ? " (on)\n" : " (off)\n");
}
static void print_flag_on_off(unsigned long get_arg, const char *s, unsigned long arg)
static void print_flag_on_off(int get_arg, const char *s, unsigned long arg)
{
if (get_arg) {
printf(" setting %s to %ld", s, arg);
@ -476,7 +479,7 @@ static void bb_ioctl_on_off(int fd, int request, void *argp, const char *string,
bb_perror_msg(" %s", string);
else {
printf(" %s\t= %2ld", str, (unsigned long) argp);
on_off((unsigned long) argp);
on_off(((unsigned long) argp) != 0);
}
}
@ -701,7 +704,7 @@ static void identify(uint16_t *id_supplied)
jj >>= 1;
}
}
printf("%s\n", (!kk) ? "\n\tLikely used CD-ROM ATAPI-1" : "" );
printf("%s\n", kk ? "" : "\n\tLikely used CD-ROM ATAPI-1");
/* the cdrom stuff is more like ATA-2 than anything else, so: */
like_std = 2;
}
@ -714,7 +717,8 @@ static void identify(uint16_t *id_supplied)
if ((eqpt != CDROM) && (like_std == 1)) {
jj = val[GEN_CONFIG] >> 1;
for (ii = 1; ii < 15; ii++) {
if (jj & 0x0001) printf("\t%s\n", ata1_cfg_str[ii]);
if (jj & 0x0001)
printf("\t%s\n", ata1_cfg_str[ii]);
jj >>=1;
}
}
@ -740,7 +744,7 @@ static void identify(uint16_t *id_supplied)
/* addressing...CHS? See section 6.2 of ATA specs 4 or 5 */
ll = (uint32_t)val[LBA_SECTS_MSB] << 16 | val[LBA_SECTS_LSB];
mm = 0; bbbig = 0;
if ( (ll > 0x00FBFC10) && (!val[LCYLS]))
if ((ll > 0x00FBFC10) && (!val[LCYLS]))
printf("\tCHS addressing not supported\n");
else {
jj = val[WHATS_VALID] & OK_W54_58;
@ -767,9 +771,9 @@ static void identify(uint16_t *id_supplied)
if (((val[CMDS_SUPP_1] & VALID) == VALID_VAL)
&& (val[CMDS_SUPP_1] & SUPPORT_48_BIT)
) {
bbbig = (uint64_t)val[LBA_64_MSB] << 48 |
(uint64_t)val[LBA_48_MSB] << 32 |
(uint64_t)val[LBA_MID] << 16 |
bbbig = (uint64_t)val[LBA_64_MSB] << 48 |
(uint64_t)val[LBA_48_MSB] << 32 |
(uint64_t)val[LBA_MID] << 16 |
val[LBA_LSB] ;
printf("\tLBA48 user addressable sectors:%11"PRIu64"\n", bbbig);
}
@ -1016,62 +1020,71 @@ static void identify(uint16_t *id_supplied)
}
#endif
static int get_identity, get_geom;
static int do_flush;
static int do_ctimings, do_timings;
static unsigned long set_readahead, get_readahead, Xreadahead;
static unsigned long set_readonly, get_readonly, readonly;
static unsigned long set_unmask, get_unmask, unmask;
static unsigned long set_mult, get_mult, mult;
#if ENABLE_FEATURE_HDPARM_HDIO_GETSET_DMA
static unsigned long set_dma, get_dma, dma;
#endif
static unsigned long set_dma_q, get_dma_q, dma_q;
static unsigned long set_nowerr, get_nowerr, nowerr;
static unsigned long set_keep, get_keep, keep;
static unsigned long set_io32bit, get_io32bit, io32bit;
static unsigned long set_piomode, noisy_piomode;
static smallint get_identity, get_geom;
static smallint do_flush;
static smallint do_ctimings, do_timings;
static smallint reread_partn;
static smallint set_piomode, noisy_piomode;
static smallint set_readahead, get_readahead;
static smallint set_readonly, get_readonly;
static smallint set_unmask, get_unmask;
static smallint set_mult, get_mult;
static smallint set_dma_q, get_dma_q;
static smallint set_nowerr, get_nowerr;
static smallint set_keep, get_keep;
static smallint set_io32bit, get_io32bit;
static int piomode;
static unsigned long Xreadahead;
static unsigned long readonly;
static unsigned long unmask;
static unsigned long mult;
static unsigned long dma_q;
static unsigned long nowerr;
static unsigned long keep;
static unsigned long io32bit;
#if ENABLE_FEATURE_HDPARM_HDIO_GETSET_DMA
static unsigned long dma;
static smallint set_dma, get_dma;
#endif
#ifdef HDIO_DRIVE_CMD
static unsigned long set_dkeep, get_dkeep, dkeep;
static unsigned long set_standby, get_standby, standby_requested;
static unsigned long set_xfermode, get_xfermode;
static smallint set_xfermode, get_xfermode;
static smallint set_dkeep, get_dkeep;
static smallint set_standby, get_standby;
static smallint set_lookahead, get_lookahead;
static smallint set_prefetch, get_prefetch;
static smallint set_defects, get_defects;
static smallint set_wcache, get_wcache;
static smallint set_doorlock, get_doorlock;
static smallint set_seagate, get_seagate;
static smallint set_standbynow, get_standbynow;
static smallint set_sleepnow, get_sleepnow;
static smallint get_powermode;
static smallint set_apmmode, get_apmmode;
static int xfermode_requested;
static unsigned long set_lookahead, get_lookahead, lookahead;
static unsigned long set_prefetch, get_prefetch, prefetch;
static unsigned long set_defects, get_defects, defects;
static unsigned long set_wcache, get_wcache, wcache;
static unsigned long set_doorlock, get_doorlock, doorlock;
static unsigned long set_seagate, get_seagate;
static unsigned long set_standbynow, get_standbynow;
static unsigned long set_sleepnow, get_sleepnow;
static unsigned long get_powermode;
static unsigned long set_apmmode, get_apmmode, apmmode;
#endif
#if ENABLE_FEATURE_HDPARM_GET_IDENTITY
static int get_IDentity;
#endif
#if ENABLE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
static unsigned long unregister_hwif;
static unsigned long hwif;
static unsigned long dkeep;
static unsigned long standby_requested;
static unsigned long lookahead;
static unsigned long prefetch;
static unsigned long defects;
static unsigned long wcache;
static unsigned long doorlock;
static unsigned long apmmode;
#endif
USE_FEATURE_HDPARM_GET_IDENTITY( static smallint get_IDentity;)
USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF( static smallint set_busstate, get_busstate;)
USE_FEATURE_HDPARM_HDIO_DRIVE_RESET( static smallint perform_reset;)
USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF( static smallint perform_tristate;)
USE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF(static smallint unregister_hwif;)
USE_FEATURE_HDPARM_HDIO_SCAN_HWIF( static smallint scan_hwif;)
USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF( static unsigned long busstate;)
USE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF( static unsigned long tristate;)
USE_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF(static unsigned long hwif;)
#if ENABLE_FEATURE_HDPARM_HDIO_SCAN_HWIF
static unsigned long scan_hwif;
static unsigned long hwif_data;
static unsigned long hwif_ctrl;
static unsigned long hwif_irq;
#endif
#if ENABLE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
static unsigned long set_busstate, get_busstate, busstate;
#endif
static int reread_partn;
#if ENABLE_FEATURE_HDPARM_HDIO_DRIVE_RESET
static int perform_reset;
#endif /* FEATURE_HDPARM_HDIO_DRIVE_RESET */
#if ENABLE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
static unsigned long perform_tristate, tristate;
#endif /* FEATURE_HDPARM_HDIO_TRISTATE_HWIF */
// Historically, if there was no HDIO_OBSOLETE_IDENTITY, then
// then the HDIO_GET_IDENTITY only returned 142 bytes.
@ -1101,11 +1114,11 @@ static void dump_identity(const struct hd_driveid *id)
printf("\n Model=%.40s, FwRev=%.8s, SerialNo=%.20s\n Config={",
id->model, id->fw_rev, id->serial_no);
for (i=0; i<=15; i++) {
for (i = 0; i <= 15; i++) {
if (id->config & (1<<i))
printf(" %s", cfg_str[i]);
}
printf( " }\n RawCHS=%u/%u/%u, TrkSize=%u, SectSize=%u, ECCbytes=%u\n"
printf(" }\n RawCHS=%u/%u/%u, TrkSize=%u, SectSize=%u, ECCbytes=%u\n"
" BuffType=(%u) %s, BuffSize=%ukB, MaxMultSect=%u",
id->cyls, id->heads, id->sectors, id->track_bytes,
id->sector_bytes, id->ecc_bytes,
@ -1128,8 +1141,8 @@ static void dump_identity(const struct hd_driveid *id)
printf(" CurCHS=%u/%u/%u, CurSects=%lu, LBA=%s", id->cur_cyls, id->cur_heads,
id->cur_sectors,
(BB_BIG_ENDIAN) ?
(long unsigned int)(id->cur_capacity0 << 16) | id->cur_capacity1 :
(long unsigned int)(id->cur_capacity1 << 16) | id->cur_capacity0,
(unsigned long)(id->cur_capacity0 << 16) | id->cur_capacity1 :
(unsigned long)(id->cur_capacity1 << 16) | id->cur_capacity0,
((id->capability&2) == 0) ? "no" : "yes");
if (id->capability & 2)
@ -1218,7 +1231,7 @@ static void dump_identity(const struct hd_driveid *id)
printf("\n Drive conforms to: %s: ", (id->minor_rev_num <= 31) ? minor_str[id->minor_rev_num] : "Unknown");
if (id->major_rev_num != 0x0000 && /* NOVAL_0 */
id->major_rev_num != 0xFFFF) { /* NOVAL_1 */
for (i=0; i <= 15; i++) {
for (i = 0; i <= 15; i++) {
if (id->major_rev_num & (1<<i))
printf(" ATA/ATAPI-%u", i);
}
@ -1270,7 +1283,7 @@ static void print_timing(int t, double e)
printf("%2d MB in %5.2f seconds =%6.2f %cB/sec\n", t, e, t / e * 1024, 'k');
}
static int do_blkgetsize (int fd, unsigned long long *blksize64)
static int do_blkgetsize(int fd, unsigned long long *blksize64)
{
int rc;
unsigned blksize32 = 0;
@ -1296,7 +1309,7 @@ static void do_time(int flag, int fd)
struct itimerval e1, e2;
double elapsed, elapsed2;
unsigned int max_iterations = 1024, total_MB, iterations;
unsigned max_iterations = 1024, total_MB, iterations;
unsigned long long blksize;
RESERVE_CONFIG_BUFFER(buf, TIMING_BUF_BYTES);
@ -1328,22 +1341,22 @@ static void do_time(int flag, int fd)
getitimer(ITIMER_REAL, &e1);
do {
++iterations;
if (seek_to_zero (fd) || read_big_block (fd, buf))
if (seek_to_zero(fd) || read_big_block(fd, buf))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (elapsed < 2.0);
total_MB = iterations * TIMING_BUF_MB;
/* Now remove the lseek() and getitimer() overheads from the elapsed time */
getitimer(ITIMER_REAL, &e1);
do {
if (seek_to_zero (fd))
if (seek_to_zero(fd))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed2 = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (--iterations);
elapsed -= elapsed2;
@ -1364,11 +1377,11 @@ static void do_time(int flag, int fd)
getitimer(ITIMER_REAL, &e1);
do {
++iterations;
if (read_big_block (fd, buf))
if (read_big_block(fd, buf))
goto quit;
getitimer(ITIMER_REAL, &e2);
elapsed = (e1.it_value.tv_sec - e2.it_value.tv_sec)
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
+ ((e1.it_value.tv_usec - e2.it_value.tv_usec) / 1000000.0);
} while (elapsed < 3.0 && iterations < max_iterations);
total_MB = iterations * TIMING_BUF_MB;
@ -1380,13 +1393,8 @@ quit2:
RELEASE_CONFIG_BUFFER(buf);
}
static void on_off (unsigned int value)
{
printf(value ? " (on)\n" : " (off)\n");
}
#if ENABLE_FEATURE_HDPARM_HDIO_TRISTATE_HWIF
static void bus_state_value(unsigned int value)
static void bus_state_value(unsigned value)
{
if (value == BUSSTATE_ON)
on_off(1);
@ -1400,9 +1408,9 @@ static void bus_state_value(unsigned int value)
#endif
#ifdef HDIO_DRIVE_CMD
static void interpret_standby(unsigned int standby)
static void interpret_standby(unsigned standby)
{
unsigned int t;
unsigned t;
printf(" (");
if (standby == 0)
@ -1415,16 +1423,14 @@ static void interpret_standby(unsigned int standby)
printf("Reserved");
else if (standby == 255)
printf("21 minutes + 15 seconds");
else {
if (standby <= 240) {
t = standby * 5;
printf("%u minutes + %u seconds", t / 60, t % 60);
} else if (standby <= 251) {
t = (standby - 240) * 30;
printf("%u hours + %u minutes", t / 60, t % 60);
} else
printf("illegal value");
}
else if (standby <= 240) {
t = standby * 5;
printf("%u minutes + %u seconds", t / 60, t % 60);
} else if (standby <= 251) {
t = (standby - 240) * 30;
printf("%u hours + %u minutes", t / 60, t % 60);
} else
printf("illegal value");
printf(")\n");
}
@ -1487,7 +1493,7 @@ static int translate_xfermode(char * name)
return -1;
}
static void interpret_xfermode(unsigned int xfermode)
static void interpret_xfermode(unsigned xfermode)
{
printf(" (");
if (xfermode == 0)
@ -1508,7 +1514,7 @@ static void interpret_xfermode(unsigned int xfermode)
}
#endif /* HDIO_DRIVE_CMD */
static void print_flag(unsigned long flag, const char *s, unsigned long value)
static void print_flag(int flag, const char *s, unsigned long value)
{
if (flag)
printf(" setting %s to %ld\n", s, value);
@ -1517,7 +1523,7 @@ static void print_flag(unsigned long flag, const char *s, unsigned long value)
static void process_dev(char *devname)
{
int fd;
static long parm, multcount;
long parm, multcount;
#ifndef HDIO_DRIVE_CMD
int force_operation = 0;
#endif
@ -1631,8 +1637,7 @@ static void process_dev(char *devname)
if (set_xfermode) {
args[1] = xfermode_requested;
args[2] = 3;
if (get_xfermode)
{
if (get_xfermode) {
print_flag(1, "xfermode", xfermode_requested);
interpret_xfermode(xfermode_requested);
}
@ -1729,7 +1734,7 @@ static void process_dev(char *devname)
bb_perror_msg("HDIO_GET_MULTCOUNT");
} else if (get_mult) {
printf(fmt, "multcount", multcount);
on_off(multcount);
on_off(multcount != 0);
}
}
if (get_io32bit) {
@ -1762,7 +1767,7 @@ static void process_dev(char *devname)
if (parm == 8)
printf(" (DMA-Assisted-PIO)\n");
else
on_off(parm);
on_off(parm != 0);
}
}
#endif
@ -1809,7 +1814,7 @@ static void process_dev(char *devname)
args[0] = WIN_CHECKPOWERMODE1;
if (bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_CHECKPOWERMODE2, 0)) {
if (errno != EIO || args[0] != 0 || args[1] != 0)
state = "Unknown";
state = "unknown";
else
state = "sleeping";
} else
@ -1919,7 +1924,7 @@ static void identify_from_stdin(void)
#endif
/* busybox specific stuff */
static void parse_opts(unsigned long *get, unsigned long *set, unsigned long *value, int min, int max)
static void parse_opts(smallint *get, smallint *set, unsigned long *value, int min, int max)
{
if (get) {
*get = 1;
@ -1930,7 +1935,7 @@ static void parse_opts(unsigned long *get, unsigned long *set, unsigned long *va
}
}
static void parse_xfermode(int flag, unsigned long *get, unsigned long *set, int *value)
static void parse_xfermode(int flag, smallint *get, smallint *set, int *value)
{
if (flag) {
*get = 1;