static int ata_identify(struct aoedev *d, struct aoe_atahdr *ata)
{
char buf[64];
u16 *words = (u16 *)ata->data;
u8 *cp;
loff_t scnt;
memset(words, 0, 512);
words[47] = 0x8000;
words[49] = 0x0200;
words[50] = 0x4000;
words[83] = 0x5400;
words[84] = 0x4000;
words[86] = 0x1400;
words[87] = 0x4000;
words[93] = 0x400b;
sprintf(buf, "V%d.%d\n", 0, 2);
setfld(words, 23, 8, buf);
setfld(words, 27, nelem(d->model), d->model);
setfld(words, 10, nelem(d->sn), d->sn);
scnt = d->scnt;
cp = (u8 *)&words[100];
*cp++ = scnt;
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8);
scnt = d->scnt;
cp = (u8 *)&words[60];
if (scnt & ~ATA_LBA28MAX)
scnt = ATA_LBA28MAX;
*cp++ = scnt;
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8);
*cp++ = (scnt >>= 8) & 0xf;
return 512;
}
static naRef f_setfld(naContext c, naRef me, int argc, naRef* args)
{
naRef s = argc > 0 ? args[0] : naNil();
int bit = argc > 1 ? (int)naNumValue(args[1]).num : -1;
int len = argc > 2 ? (int)naNumValue(args[2]).num : -1;
naRef val = argc > 3 ? naNumValue(args[3]) : naNil();
if(!argc || !MUTABLE(args[0])|| bit < 0 || len < 0 || IS_NIL(val))
naRuntimeError(c, "missing/bad argument to setfld");
setfld(c, (void*)naStr_data(s), naStr_len(s), bit, len, (unsigned int)val.num);
return naNil();
}