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Add rigid and flexible disk geometry page support 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4821 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-07-02 15:16:18 +00:00
parent c701b35b42
commit 5e65a31037
1 changed files with 70 additions and 1 deletions
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71
hw/scsi-disk.c
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@ -532,7 +532,76 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
outbuf[2] = 0x80; /* Readonly. */
}
p += 4;
if ((page == 8 || page == 0x3f)) {
if (page == 4) {
int cylinders, heads, secs;
/* Rigid disk device geometry page. */
p[0] = 4;
p[1] = 0x16;
/* if a geometry hint is available, use it */
bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs);
p[2] = (cylinders >> 16) & 0xff;
p[3] = (cylinders >> 8) & 0xff;
p[4] = cylinders & 0xff;
p[5] = heads & 0xff;
/* Write precomp start cylinder, disabled */
p[6] = (cylinders >> 16) & 0xff;
p[7] = (cylinders >> 8) & 0xff;
p[8] = cylinders & 0xff;
/* Reduced current start cylinder, disabled */
p[9] = (cylinders >> 16) & 0xff;
p[10] = (cylinders >> 8) & 0xff;
p[11] = cylinders & 0xff;
/* Device step rate [ns], 200ns */
p[12] = 0;
p[13] = 200;
/* Landing zone cylinder */
p[14] = 0xff;
p[15] = 0xff;
p[16] = 0xff;
/* Medium rotation rate [rpm], 5400 rpm */
p[20] = (5400 >> 8) & 0xff;
p[21] = 5400 & 0xff;
p += 0x16;
} else if (page == 5) {
int cylinders, heads, secs;
/* Flexible disk device geometry page. */
p[0] = 5;
p[1] = 0x1e;
/* Transfer rate [kbit/s], 5Mbit/s */
p[2] = 5000 >> 8;
p[3] = 5000 & 0xff;
/* if a geometry hint is available, use it */
bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs);
p[4] = heads & 0xff;
p[5] = secs & 0xff;
p[6] = s->cluster_size * 2;
p[8] = (cylinders >> 8) & 0xff;
p[9] = cylinders & 0xff;
/* Write precomp start cylinder, disabled */
p[10] = (cylinders >> 8) & 0xff;
p[11] = cylinders & 0xff;
/* Reduced current start cylinder, disabled */
p[12] = (cylinders >> 8) & 0xff;
p[13] = cylinders & 0xff;
/* Device step rate [100us], 100us */
p[14] = 0;
p[15] = 1;
/* Device step pulse width [us], 1us */
p[16] = 1;
/* Device head settle delay [100us], 100us */
p[17] = 0;
p[18] = 1;
/* Motor on delay [0.1s], 0.1s */
p[19] = 1;
/* Motor off delay [0.1s], 0.1s */
p[20] = 1;
/* Medium rotation rate [rpm], 5400 rpm */
p[28] = (5400 >> 8) & 0xff;
p[29] = 5400 & 0xff;
p += 0x1e;
} else if ((page == 8 || page == 0x3f)) {
/* Caching page. */
memset(p,0,20);
p[0] = 8;