mirror of
https://github.com/linux-msm/qbootctl
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50ef0328af
gracefully handle UFS_BSG not being enabled in the kernel, rather than putting the device into a semi-bricked state (oops).
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
#ifndef __RECOVERY_UFS_BSG_H__
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#define __RECOVERY_UFS_BSG_H__
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/*
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* Copyright (c) 2020 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define FNAME_SZ 64
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#define SG_IO 0x2285
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#define DWORD(b3, b2, b1, b0) htobe32((b3 << 24) | (b2 << 16) | (b1 << 8) | b0)
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/* UPIU Transaction Codes */
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enum {
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UTP_UPIU_NOP_OUT = 0x00,
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UTP_UPIU_COMMAND = 0x01,
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UTP_UPIU_DATA_OUT = 0x02,
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UTP_UPIU_TASK_REQ = 0x04,
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UTP_UPIU_QUERY_REQ = 0x16,
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};
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/* UPIU Query Function field */
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enum {
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QUERY_REQ_FUNC_STD_READ = 0x01,
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QUERY_REQ_FUNC_STD_WRITE = 0x81,
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};
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enum query_req_opcode {
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QUERY_REQ_OP_READ_DESC = 0x1,
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QUERY_REQ_OP_WRITE_DESC = 0x2,
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QUERY_REQ_OP_READ_ATTR = 0x3,
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QUERY_REQ_OP_WRITE_ATTR = 0x4,
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QUERY_REQ_OP_READ_FLAG = 0x5,
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QUERY_REQ_OP_SET_FLAG = 0x6,
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QUERY_REQ_OP_CLEAR_FLAG = 0x7,
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QUERY_REQ_OP_TOGGLE_FLAG = 0x8,
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};
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enum query_desc_idn {
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QUERY_DESC_IDN_DEVICE = 0x0,
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QUERY_DESC_IDN_UNIT = 0x2,
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QUERY_DESC_IDN_GEOMETRY = 0x7,
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};
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enum query_desc_size {
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QUERY_DESC_SIZE_DEVICE = 0x40,
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QUERY_DESC_SIZE_GEOMETRY = 0x48,
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QUERY_DESC_SIZE_UNIT = 0x23,
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};
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enum bsg_ioctl_dir {
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BSG_IOCTL_DIR_TO_DEV,
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BSG_IOCTL_DIR_FROM_DEV,
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};
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enum query_attr_idn {
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QUERY_ATTR_IDN_BOOT_LU_EN = 0x00,
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QUERY_ATTR_IDN_RESERVED = 0x01,
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QUERY_ATTR_IDN_POWER_MODE = 0x02,
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QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03,
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};
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int ufs_bsg_dev_open();
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#endif /* __RECOVERY_UFS_BSG_H__ */
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