/* Iterate through all device aliases. This function can be used to
find a device of a specific type. */
grub_err_t
grub_devalias_iterate (int (*hook) (struct grub_ieee1275_devalias *alias))
{
grub_ieee1275_phandle_t aliases;
char aliasname[32];
int actual;
struct grub_ieee1275_devalias alias;
if (grub_ieee1275_finddevice ("/aliases", &aliases))
return -1;
/* Find the first property. */
aliasname[0] = '\0';
while (grub_ieee1275_next_property (aliases, aliasname, aliasname))
{
grub_ieee1275_phandle_t dev;
grub_ssize_t pathlen;
char *devpath;
/* XXX: This should be large enough for any possible case. */
char devtype[64];
grub_dprintf ("devalias", "devalias name = %s\n", aliasname);
grub_ieee1275_get_property_length (aliases, aliasname, &pathlen);
/* The property `name' is a special case we should skip. */
if (!grub_strcmp (aliasname, "name"))
continue;
devpath = grub_malloc (pathlen);
if (! devpath)
return grub_errno;
if (grub_ieee1275_get_property (aliases, aliasname, devpath, pathlen,
&actual))
{
grub_dprintf ("devalias", "get_property (%s) failed\n", aliasname);
goto nextprop;
}
if (grub_ieee1275_finddevice (devpath, &dev))
{
grub_dprintf ("devalias", "finddevice (%s) failed\n", devpath);
goto nextprop;
}
if (grub_ieee1275_get_property (dev, "device_type", devtype,
sizeof devtype, &actual))
{
/* NAND device don't have device_type property. */
devtype[0] = 0;
}
alias.name = aliasname;
alias.path = devpath;
alias.type = devtype;
hook (&alias);
nextprop:
grub_free (devpath);
}
return 0;
}
/* Iterate through all device aliases. This function can be used to
find a device of a specific type. */
int
grub_devalias_iterate (int (*hook) (struct grub_ieee1275_devalias *alias,
void *closure), void *closure)
{
grub_ieee1275_phandle_t aliases;
char *aliasname, *devtype;
grub_ssize_t actual;
struct grub_ieee1275_devalias alias;
int ret = 0;
if (grub_ieee1275_finddevice ("/aliases", &aliases))
return 0;
aliasname = grub_malloc (IEEE1275_MAX_PROP_LEN);
if (!aliasname)
return 0;
devtype = grub_malloc (IEEE1275_MAX_PROP_LEN);
if (!devtype)
{
grub_free (aliasname);
return 0;
}
/* Find the first property. */
aliasname[0] = '\0';
while (grub_ieee1275_next_property (aliases, aliasname, aliasname) > 0)
{
grub_ieee1275_phandle_t dev;
grub_ssize_t pathlen;
char *devpath;
if (! aliasname[0])
break;
grub_dprintf ("devalias", "devalias name = %s\n", aliasname);
grub_ieee1275_get_property_length (aliases, aliasname, &pathlen);
/* The property `name' is a special case we should skip. */
if (!grub_strcmp (aliasname, "name"))
continue;
/* Sun's OpenBoot often doesn't zero terminate the device alias
strings, so we will add a NULL byte at the end explicitly. */
pathlen += 1;
devpath = grub_malloc (pathlen);
if (! devpath)
{
grub_free (devtype);
grub_free (aliasname);
return 0;
}
if (grub_ieee1275_get_property (aliases, aliasname, devpath, pathlen,
&actual))
{
grub_dprintf ("devalias", "get_property (%s) failed\n", aliasname);
goto nextprop;
}
devpath [actual] = '\0';
if (grub_ieee1275_finddevice (devpath, &dev))
{
grub_dprintf ("devalias", "finddevice (%s) failed\n", devpath);
goto nextprop;
}
if (grub_ieee1275_get_property (dev, "device_type", devtype,
IEEE1275_MAX_PROP_LEN, &actual))
{
/* NAND device don't have device_type property. */
devtype[0] = 0;
}
alias.name = aliasname;
alias.path = devpath;
alias.type = devtype;
ret = hook (&alias, closure);
nextprop:
grub_free (devpath);
if (ret)
break;
}
grub_free (devtype);
grub_free (aliasname);
return ret;
}
