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efi_loader: Split drive add into function

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The snippet of code to add a drive to our drive list needs to
get called from 2 places in the future. Split it into a separate
function.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2016-04-11 16:16:17 +02:00 committed by Tom Rini
parent a2adb173ec
commit 4a12a97c14
1 changed files with 47 additions and 37 deletions
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84
lib/efi_loader/efi_disk.c
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@ -138,6 +138,52 @@ static const struct efi_block_io block_io_disk_template = {
.flush_blocks = &efi_disk_flush_blocks,
};
static void efi_disk_add_dev(char *name,
const struct block_drvr *cur_drvr,
const struct blk_desc *desc,
int dev_index,
lbaint_t offset)
{
struct efi_disk_obj *diskobj;
struct efi_device_path_file_path *dp;
int objlen = sizeof(*diskobj) + (sizeof(*dp) * 2);
diskobj = calloc(1, objlen);
/* Fill in object data */
diskobj->parent.protocols[0].guid = &efi_block_io_guid;
diskobj->parent.protocols[0].open = efi_disk_open_block;
diskobj->parent.protocols[1].guid = &efi_guid_device_path;
diskobj->parent.protocols[1].open = efi_disk_open_dp;
diskobj->parent.handle = diskobj;
diskobj->ops = block_io_disk_template;
diskobj->ifname = cur_drvr->name;
diskobj->dev_index = dev_index;
/* Fill in EFI IO Media info (for read/write callbacks) */
diskobj->media.removable_media = desc->removable;
diskobj->media.media_present = 1;
diskobj->media.block_size = desc->blksz;
diskobj->media.io_align = desc->blksz;
diskobj->media.last_block = desc->lba;
diskobj->ops.media = &diskobj->media;
/* Fill in device path */
dp = (void*)&diskobj[1];
diskobj->dp = dp;
dp[0].dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
dp[0].dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
dp[0].dp.length = sizeof(*dp);
ascii2unicode(dp[0].str, name);
dp[1].dp.type = DEVICE_PATH_TYPE_END;
dp[1].dp.sub_type = DEVICE_PATH_SUB_TYPE_END;
dp[1].dp.length = sizeof(*dp);
/* Hook up to the device list */
list_add_tail(&diskobj->parent.link, &efi_obj_list);
}
/*
* U-Boot doesn't have a list of all online disk devices. So when running our
* EFI payload, we scan through all of the potentially available ones and
@ -156,9 +202,6 @@ int efi_disk_register(void)
printf("Scanning disks on %s...\n", cur_drvr->name);
for (i = 0; i < 4; i++) {
struct blk_desc *desc;
struct efi_disk_obj *diskobj;
struct efi_device_path_file_path *dp;
int objlen = sizeof(*diskobj) + (sizeof(*dp) * 2);
char devname[16] = { 0 }; /* dp->str is u16[16] long */
desc = blk_get_dev(cur_drvr->name, i);
@ -167,42 +210,9 @@ int efi_disk_register(void)
if (desc->type == DEV_TYPE_UNKNOWN)
continue;
diskobj = calloc(1, objlen);
/* Fill in object data */
diskobj->parent.protocols[0].guid = &efi_block_io_guid;
diskobj->parent.protocols[0].open = efi_disk_open_block;
diskobj->parent.protocols[1].guid = &efi_guid_device_path;
diskobj->parent.protocols[1].open = efi_disk_open_dp;
diskobj->parent.handle = diskobj;
diskobj->ops = block_io_disk_template;
diskobj->ifname = cur_drvr->name;
diskobj->dev_index = i;
/* Fill in EFI IO Media info (for read/write callbacks) */
diskobj->media.removable_media = desc->removable;
diskobj->media.media_present = 1;
diskobj->media.block_size = desc->blksz;
diskobj->media.io_align = desc->blksz;
diskobj->media.last_block = desc->lba;
diskobj->ops.media = &diskobj->media;
/* Fill in device path */
dp = (void*)&diskobj[1];
diskobj->dp = dp;
dp[0].dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
dp[0].dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
dp[0].dp.length = sizeof(*dp);
snprintf(devname, sizeof(devname), "%s%d",
cur_drvr->name, i);
ascii2unicode(dp[0].str, devname);
dp[1].dp.type = DEVICE_PATH_TYPE_END;
dp[1].dp.sub_type = DEVICE_PATH_SUB_TYPE_END;
dp[1].dp.length = sizeof(*dp);
/* Hook up to the device list */
list_add_tail(&diskobj->parent.link, &efi_obj_list);
efi_disk_add_dev(devname, cur_drvr, desc, i, 0);
disks++;
}
}