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bdk: ums: allow real sizes for boot partitions

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Since that's eMMC, do not clamp the size to 4MB.
That doesn't affect anything other than allowing the host to see the whole
physical partition .
This commit is contained in:
CTCaer 2024-05-19 10:57:20 +03:00
parent 927489d2da
commit a070d2e394
1 changed files with 14 additions and 9 deletions
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23
bdk/usb/usb_gadget_ums.c
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@ -4,7 +4,7 @@
* Copyright (c) 2003-2008 Alan Stern
* Copyright (c) 2009 Samsung Electronics
* Author: Michal Nazarewicz <m.nazarewicz@samsung.com>
* Copyright (c) 2019-2023 CTCaer
* Copyright (c) 2019-2024 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@ -1842,10 +1842,11 @@ int usb_device_gadget_ums(usb_ctxt_t *usbs)
ums.bulk_ctxt.bulk_out_buf = (u8 *)USB_EP_BULK_OUT_BUF_ADDR;
// Set LUN parameters.
ums.lun.ro = usbs->ro;
ums.lun.type = usbs->type;
ums.lun.partition = usbs->partition;
ums.lun.offset = usbs->offset;
ums.lun.ro = usbs->ro;
ums.lun.type = usbs->type;
ums.lun.partition = usbs->partition;
ums.lun.num_sectors = usbs->sectors;
ums.lun.offset = usbs->offset;
ums.lun.removable = 1; // Always removable to force OSes to use prevent media removal.
ums.lun.unit_attention_data = SS_RESET_OCCURRED;
@ -1898,10 +1899,14 @@ int usb_device_gadget_ums(usb_ctxt_t *usbs)
ums.set_text(ums.label, "#C7EA46 Status:# Started UMS");
if (usbs->sectors)
ums.lun.num_sectors = usbs->sectors;
else
ums.lun.num_sectors = ums.lun.storage->sec_cnt;
// If partition sectors are not set get them from hardware.
if (!ums.lun.num_sectors)
{
if (usbs->type == MMC_EMMC && (ums.lun.partition - 1)) // eMMC BOOT0/1.
ums.lun.num_sectors = emmc_storage.ext_csd.boot_mult << 8;
else
ums.lun.num_sectors = ums.lun.storage->sec_cnt; // eMMC GPP or SD.
}
do
{