static grub_err_t grub_ofdisk_open (const char *name, grub_disk_t disk) { grub_ieee1275_phandle_t dev; char *devpath; /* XXX: This should be large enough for any possible case. */ char prop[64]; grub_ssize_t actual; if (grub_strncmp (name, "ieee1275/", sizeof ("ieee1275/") - 1) != 0) return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "not IEEE1275 device"); devpath = compute_dev_path (name + sizeof ("ieee1275/") - 1); if (! devpath) return grub_errno; grub_dprintf ("disk", "Opening `%s'.\n", devpath); if (grub_ieee1275_finddevice (devpath, &dev)) { grub_free (devpath); return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't read device properties"); } if (grub_ieee1275_get_property (dev, "device_type", prop, sizeof (prop), &actual)) { grub_free (devpath); return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't read the device type"); } if (grub_strcmp (prop, "block")) { grub_free (devpath); return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "not a block device"); } /* XXX: There is no property to read the number of blocks. There should be a property `#blocks', but it is not there. Perhaps it is possible to use seek for this. */ disk->total_sectors = GRUB_DISK_SIZE_UNKNOWN; { struct ofdisk_hash_ent *op; op = ofdisk_hash_find (devpath); if (!op) op = ofdisk_hash_add (devpath, NULL); else grub_free (devpath); if (!op) return grub_errno; disk->id = (unsigned long) op; disk->data = op->devpath; } return 0; }
static grub_err_t grub_ofdisk_open (const char *name, grub_disk_t disk) { grub_ieee1275_phandle_t dev; grub_ieee1275_ihandle_t dev_ihandle = 0; struct ofdisk_hash_ent *op; char *devpath; /* XXX: This should be large enough for any possible case. */ char prop[64]; grub_ssize_t actual; devpath = compute_dev_path (name); if (! devpath) return grub_errno; op = ofdisk_hash_find (devpath); if (!op) op = ofdisk_hash_add (devpath); grub_free (devpath); if (!op) return grub_errno; if (op->dev_ihandle) { op->refs++; /* XXX: There is no property to read the number of blocks. There should be a property `#blocks', but it is not there. Perhaps it is possible to use seek for this. */ disk->total_sectors = 0xFFFFFFFFUL; disk->id = (unsigned long) op; /* XXX: Read this, somehow. */ disk->has_partitions = 1; disk->data = op; return 0; } grub_dprintf ("disk", "Opening `%s'.\n", op->devpath); if (grub_ieee1275_finddevice (op->devpath, &dev)) { grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't read device properties"); goto fail; } if (grub_ieee1275_get_property (dev, "device_type", prop, sizeof (prop), &actual)) { grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't read the device type"); goto fail; } if (grub_strcmp (prop, "block")) { grub_error (GRUB_ERR_BAD_DEVICE, "not a block device"); goto fail; } grub_ieee1275_open (op->devpath, &dev_ihandle); if (! dev_ihandle) { grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't open device"); goto fail; } grub_dprintf ("disk", "Opened `%s' as handle %p.\n", op->devpath, (void *) (unsigned long) dev_ihandle); op->dev_ihandle = dev_ihandle; op->refs++; /* XXX: There is no property to read the number of blocks. There should be a property `#blocks', but it is not there. Perhaps it is possible to use seek for this. */ disk->total_sectors = 0xFFFFFFFFUL; disk->id = (unsigned long) op; /* XXX: Read this, somehow. */ disk->has_partitions = 1; disk->data = op; return 0; fail: if (dev_ihandle) grub_ieee1275_close (dev_ihandle); return grub_errno; }