Re: IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer))

Folkert van Heusden
2005-07-07T20:43:37Z

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Doesn't park here:

ehm:/home/folkert# ./park /dev/hda
head not parked 4c

ehm:/home/folkert# hdparm -i /dev/hda

/dev/hda:

Model=IC25N060ATMR04-0, FwRev=MO3OAD5A, SerialNo=MRG357K3KKN0XH
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=7884kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117210240
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

* signifies the current active mode

[ 38.772050] hda: max request size: 1024KiB
[ 38.792458] hda: 117210240 sectors (60011 MB) w/7884KiB Cache, CHS=16383/255/63, UDMA(100)

> > > #include <stdio.h>
> > > #include <unistd.h>
> > > #include <fcntl.h>
> > > #include <string.h>
> > > #include <sys/ioctl.h>
> > > #include <linux/hdreg.h>
> > >
> > > int main(int argc, char *argv[])
> > > {
> > > unsigned char buf[8];
> > > int fd;
> > >
> > > if (argc < 2) {
> > > printf("%s <dev>\n", argv[0]);
> > > return 1;
> > > }
> > >
> > > fd = open(argv[1], O_RDONLY);
> > > if (fd == -1) {
> > > perror("open");
> > > return 1;
> > > }
> > >
> > > memset(buf, 0, sizeof(buf));
> > > buf[0] = 0xe1;
> > > buf[1] = 0x44;
> > > buf[3] = 0x4c;
> > > buf[4] = 0x4e;
> > > buf[5] = 0x55;
> > >
> > > if (ioctl(fd, HDIO_DRIVE_TASK, buf)) {
> > > perror("ioctl");
> > > return 1;
> > > }
> > >
> > > if (buf[3] == 0xc4)
> > > printf("head parked\n");
> > > else
> > > printf("head not parked %x\n", buf[3]);
> > >
> > > close(fd);
> > > return 0;
> > > }

Folkert van Heusden

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