lisa/android_device_xiaomi_sm8350-common
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sm8350-common: import bootctrl hal and gpt-utils

Browse Source
This commit is contained in:
Cosmin Tanislav 2021-09-03 20:26:53 +03:00
parent a0ffc59056
commit 18a612bbf8
10 changed files with 2300 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Android.bp Normal file
View File

@ -0,0 +1,3 @@
soong_namespace {
imports: ["hardware/qcom-caf/bootctrl"],
}

28
bootctrl/Android.bp Normal file
View File

@ -0,0 +1,28 @@
//
// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
cc_library {
name: "bootctrl.xiaomi_sm8350",
defaults: ["bootctrl_hal_defaults"],
static_libs: ["libgptutils.xiaomi_sm8350"],
}
cc_library_shared {
name: "android.hardware.boot@1.1-impl-qti",
stem: "android.hardware.boot@1.0-impl-1.1-qti",
defaults: ["android.hardware.boot@1.1-impl-qti_defaults"],
static_libs: ["libgptutils.xiaomi_sm8350"],
}

9
common.mk
View File

@ -105,6 +105,15 @@ PRODUCT_COPY_FILES += \
TARGET_SCREEN_HEIGHT := 2400
TARGET_SCREEN_WIDTH := 1080
# Boot control
PRODUCT_PACKAGES += \
android.hardware.boot@1.1-impl-qti \
android.hardware.boot@1.1-impl-qti.recovery \
android.hardware.boot@1.1-service
PRODUCT_PACKAGES_DEBUG += \
bootctl
# Camera
PRODUCT_PACKAGES += \
libgui_vendor \

41
gpt-utils/Android.bp Normal file
View File

@ -0,0 +1,41 @@
//
// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
cc_library {
name: "libgptutils.xiaomi_sm8350",
vendor: true,
recovery_available: true,
shared_libs: [
"libcutils",
"liblog",
"libz",
],
cflags: [
"-Wall",
"-Werror",
"-D_BSG_FRAMEWORK_KERNEL_HEADERS",
],
srcs: [
"gpt-utils.cpp",
"recovery-ufs-bsg.cpp",
],
owner: "qti",
header_libs: [
"generated_kernel_headers",
],
export_include_dirs: ["."],
}

1519
gpt-utils/gpt-utils.cpp Normal file
View File

File diff suppressed because it is too large Load Diff

193
gpt-utils/gpt-utils.h Normal file
View File

@ -0,0 +1,193 @@
/*
* Copyright (c) 2013,2016,2020 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __GPT_UTILS_H__
#define __GPT_UTILS_H__
#include <vector>
#include <string>
#include <map>
#ifdef __cplusplus
extern "C" {
#endif
#include <unistd.h>
#include <stdlib.h>
/******************************************************************************
* GPT HEADER DEFINES
******************************************************************************/
#define GPT_SIGNATURE "EFI PART"
#define HEADER_SIZE_OFFSET 12
#define HEADER_CRC_OFFSET 16
#define PRIMARY_HEADER_OFFSET 24
#define BACKUP_HEADER_OFFSET 32
#define FIRST_USABLE_LBA_OFFSET 40
#define LAST_USABLE_LBA_OFFSET 48
#define PENTRIES_OFFSET 72
#define PARTITION_COUNT_OFFSET 80
#define PENTRY_SIZE_OFFSET 84
#define PARTITION_CRC_OFFSET 88
#define TYPE_GUID_OFFSET 0
#define TYPE_GUID_SIZE 16
#define PTN_ENTRY_SIZE 128
#define UNIQUE_GUID_OFFSET 16
#define FIRST_LBA_OFFSET 32
#define LAST_LBA_OFFSET 40
#define ATTRIBUTE_FLAG_OFFSET 48
#define PARTITION_NAME_OFFSET 56
#define MAX_GPT_NAME_SIZE 72
/******************************************************************************
* AB RELATED DEFINES
******************************************************************************/
//Bit 48 onwords in the attribute field are the ones where we are allowed to
//store our AB attributes.
#define AB_FLAG_OFFSET (ATTRIBUTE_FLAG_OFFSET + 6)
#define GPT_DISK_INIT_MAGIC 0xABCD
#define AB_PARTITION_ATTR_SLOT_ACTIVE (0x1<<2)
#define AB_PARTITION_ATTR_BOOT_SUCCESSFUL (0x1<<6)
#define AB_PARTITION_ATTR_UNBOOTABLE (0x1<<7)
#define AB_SLOT_ACTIVE_VAL 0x3F
#define AB_SLOT_INACTIVE_VAL 0x0
#define AB_SLOT_ACTIVE 1
#define AB_SLOT_INACTIVE 0
#define AB_SLOT_A_SUFFIX "_a"
#define AB_SLOT_B_SUFFIX "_b"
#define PTN_XBL "xbl"
#define PTN_XBL_CFG "xbl_config"
#define PTN_SWAP_LIST PTN_XBL, PTN_XBL_CFG, "sbl1", "rpm", "tz", "aboot", "abl", "hyp", "lksecapp", "keymaster", "cmnlib", "cmnlib32", "cmnlib64", "pmic", "apdp", "devcfg", "hosd", "keystore", "msadp", "mdtp", "mdtpsecapp", "dsp", "aop", "qupfw", "vbmeta", "dtbo", "imagefv", "ImageFv", "multiimgoem", "multiimgqti", "uefisecapp", "vm-bootsys", "shrm", "cpucp"
#define AB_PTN_LIST PTN_SWAP_LIST, "boot", "vendor_boot", "system", "vendor", "odm", "modem", "bluetooth"
#define BOOT_DEV_DIR "/dev/block/bootdevice/by-name"
/******************************************************************************
* HELPER MACROS
******************************************************************************/
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/******************************************************************************
* TYPES
******************************************************************************/
enum boot_update_stage {
UPDATE_MAIN = 1,
UPDATE_BACKUP,
UPDATE_FINALIZE
};
enum gpt_instance {
PRIMARY_GPT = 0,
SECONDARY_GPT
};
enum boot_chain {
NORMAL_BOOT = 0,
BACKUP_BOOT
};
struct gpt_disk {
//GPT primary header
uint8_t *hdr;
//primary header crc
uint32_t hdr_crc;
//GPT backup header
uint8_t *hdr_bak;
//backup header crc
uint32_t hdr_bak_crc;
//Partition entries array
uint8_t *pentry_arr;
//Partition entries array for backup table
uint8_t *pentry_arr_bak;
//Size of the pentry array
uint32_t pentry_arr_size;
//Size of each element in the pentry array
uint32_t pentry_size;
//CRC of the partition entry array
uint32_t pentry_arr_crc;
//CRC of the backup partition entry array
uint32_t pentry_arr_bak_crc;
//Path to block dev representing the disk
char devpath[PATH_MAX];
//Block size of disk
uint32_t block_size;
uint32_t is_initialized;
};
/******************************************************************************
* FUNCTION PROTOTYPES
******************************************************************************/
int prepare_boot_update(enum boot_update_stage stage);
//GPT disk methods
struct gpt_disk* gpt_disk_alloc();
//Free previously allocated gpt_disk struct
void gpt_disk_free(struct gpt_disk *disk);
//Get the details of the disk holding the partition whose name
//is passed in via dev
int gpt_disk_get_disk_info(const char *dev, struct gpt_disk *disk);
//Get pointer to partition entry from a allocated gpt_disk structure
uint8_t* gpt_disk_get_pentry(struct gpt_disk *disk,
const char *partname,
enum gpt_instance instance);
//Update the crc fields of the modified disk structure
int gpt_disk_update_crc(struct gpt_disk *disk);
//Write the contents of struct gpt_disk back to the actual disk
int gpt_disk_commit(struct gpt_disk *disk);
//Return if the current device is UFS based or not
int gpt_utils_is_ufs_device();
//Swtich betwieen using either the primary or the backup
//boot LUN for boot. This is required since UFS boot partitions
//cannot have a backup GPT which is what we use for failsafe
//updates of the other 'critical' partitions. This function will
//not be invoked for emmc targets and on UFS targets is only required
//to be invoked for XBL.
//
//The algorithm to do this is as follows:
//- Find the real block device(eg: /dev/block/sdb) that corresponds
// to the /dev/block/bootdevice/by-name/xbl(bak) symlink
//
//- Once we have the block device 'node' name(sdb in the above example)
// use this node to to locate the scsi generic device that represents
// it by checking the file /sys/block/sdb/device/scsi_generic/sgY
//
//- Once we locate sgY we call the query ioctl on /dev/sgy to switch
//the boot lun to either LUNA or LUNB
int gpt_utils_set_xbl_boot_partition(enum boot_chain chain);
//Given a vector of partition names as a input and a reference to a map,
//populate the map to indicate which physical disk each of the partitions
//sits on. The key in the map is the path to the block device where the
//partiton lies and the value is a vector of strings indicating which of
//the passed in partiton names sits on that device.
int gpt_utils_get_partition_map(std::vector<std::string>& partition_list,
std::map<std::string,std::vector<std::string>>& partition_map);
#ifdef __cplusplus
}
#endif
#endif /* __GPT_UTILS_H__ */

255
gpt-utils/recovery-ufs-bsg.cpp Normal file
View File

@ -0,0 +1,255 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define LOG_TAG "recovery_ufs"
#include "recovery-ufs-bsg.h"
#ifndef _BSG_FRAMEWORK_KERNEL_HEADERS
#ifndef _GENERIC_KERNEL_HEADERS
#include <scsi/ufs/ioctl.h>
#include <scsi/ufs/ufs.h>
#endif
#endif
//Size of the buffer that needs to be passed to the UFS ioctl
#define UFS_ATTR_DATA_SIZE 32
#ifdef _BSG_FRAMEWORK_KERNEL_HEADERS
static int get_ufs_bsg_dev(void)
{
DIR *dir;
struct dirent *ent;
int ret = -ENODEV;
if ((dir = opendir ("/dev")) != NULL) {
/* read all the files and directories within directory */
while ((ent = readdir(dir)) != NULL) {
if (!strcmp(ent->d_name, "ufs-bsg") ||
!strcmp(ent->d_name, "ufs-bsg0")) {
snprintf(ufs_bsg_dev, FNAME_SZ, "/dev/%s", ent->d_name);
ret = 0;
break;
}
}
if (ret)
ALOGE("could not find the ufs-bsg dev\n");
closedir (dir);
} else {
/* could not open directory */
ALOGE("could not open /dev (error no: %d)\n", errno);
ret = -EINVAL;
}
return ret;
}
int ufs_bsg_dev_open(void)
{
int ret;
if (!fd_ufs_bsg) {
fd_ufs_bsg = open(ufs_bsg_dev, O_RDWR);
ret = errno;
if (fd_ufs_bsg < 0) {
ALOGE("Unable to open %s (error no: %d)",
ufs_bsg_dev, errno);
fd_ufs_bsg = 0;
return ret;
}
}
return 0;
}
void ufs_bsg_dev_close(void)
{
if (fd_ufs_bsg) {
close(fd_ufs_bsg);
fd_ufs_bsg = 0;
}
}
static int ufs_bsg_ioctl(int fd, struct ufs_bsg_request *req,
struct ufs_bsg_reply *rsp, __u8 *buf, __u32 buf_len,
enum bsg_ioctl_dir dir)
{
int ret;
struct sg_io_v4 sg_io{};
sg_io.guard = 'Q';
sg_io.protocol = BSG_PROTOCOL_SCSI;
sg_io.subprotocol = BSG_SUB_PROTOCOL_SCSI_TRANSPORT;
sg_io.request_len = sizeof(*req);
sg_io.request = (__u64)req;
sg_io.response = (__u64)rsp;
sg_io.max_response_len = sizeof(*rsp);
if (dir == BSG_IOCTL_DIR_FROM_DEV) {
sg_io.din_xfer_len = buf_len;
sg_io.din_xferp = (__u64)(buf);
} else {
sg_io.dout_xfer_len = buf_len;
sg_io.dout_xferp = (__u64)(buf);
}
ret = ioctl(fd, SG_IO, &sg_io);
if (ret)
ALOGE("%s: Error from sg_io ioctl (return value: %d, error no: %d, reply result from LLD: %d\n)",
__func__, ret, errno, rsp->result);
if (sg_io.info || rsp->result) {
ALOGE("%s: Error from sg_io info (check sg info: device_status: 0x%x, transport_status: 0x%x, driver_status: 0x%x, reply result from LLD: %d\n)",
__func__, sg_io.device_status, sg_io.transport_status,
sg_io.driver_status, rsp->result);
ret = -EAGAIN;
}
return ret;
}
static void compose_ufs_bsg_query_req(struct ufs_bsg_request *req, __u8 func,
__u8 opcode, __u8 idn, __u8 index, __u8 sel,
__u16 length)
{
struct utp_upiu_header *hdr = &req->upiu_req.header;
struct utp_upiu_query *qr = &req->upiu_req.qr;
req->msgcode = UTP_UPIU_QUERY_REQ;
hdr->dword_0 = DWORD(UTP_UPIU_QUERY_REQ, 0, 0, 0);
hdr->dword_1 = DWORD(0, func, 0, 0);
hdr->dword_2 = DWORD(0, 0, length >> 8, (__u8)length);
qr->opcode = opcode;
qr->idn = idn;
qr->index = index;
qr->selector = sel;
qr->length = htobe16(length);
}
static int ufs_query_attr(int fd, __u32 value,
__u8 func, __u8 opcode, __u8 idn,
__u8 index, __u8 sel)
{
struct ufs_bsg_request req{};
struct ufs_bsg_reply rsp{};
enum bsg_ioctl_dir dir = BSG_IOCTL_DIR_FROM_DEV;
int ret = 0;
if (opcode == QUERY_REQ_OP_WRITE_DESC || opcode == QUERY_REQ_OP_WRITE_ATTR)
dir = BSG_IOCTL_DIR_TO_DEV;
req.upiu_req.qr.value = htobe32(value);
compose_ufs_bsg_query_req(&req, func, opcode, idn, index, sel, 0);
ret = ufs_bsg_ioctl(fd, &req, &rsp, 0, 0, dir);
if (ret)
ALOGE("%s: Error from ufs_bsg_ioctl (return value: %d, error no: %d\n)",
__func__, ret, errno);
return ret;
}
int32_t set_boot_lun(char *sg_dev __unused,uint8_t lun_id)
{
int32_t ret;
__u32 boot_lun_id = lun_id;
ret = get_ufs_bsg_dev();
if (ret)
return ret;
ALOGV("Found the ufs bsg dev: %s\n", ufs_bsg_dev);
ret = ufs_bsg_dev_open();
if (ret)
return ret;
ALOGV("Opened ufs bsg dev: %s\n", ufs_bsg_dev);
ret = ufs_query_attr(fd_ufs_bsg, boot_lun_id, QUERY_REQ_FUNC_STD_WRITE,
QUERY_REQ_OP_WRITE_ATTR, QUERY_ATTR_IDN_BOOT_LU_EN, 0, 0);
if (ret) {
ALOGE("Error requesting ufs attr idn %d via query ioctl (return value: %d, error no: %d)",
QUERY_ATTR_IDN_BOOT_LU_EN, ret, errno);
goto out;
}
out:
ufs_bsg_dev_close();
return ret;
}
#endif
#ifndef _BSG_FRAMEWORK_KERNEL_HEADERS
int32_t set_boot_lun(char *sg_dev, uint8_t boot_lun_id)
{
#ifndef _GENERIC_KERNEL_HEADERS
int fd = -1;
int rc;
struct ufs_ioctl_query_data *data = NULL;
size_t ioctl_data_size = sizeof(struct ufs_ioctl_query_data) + UFS_ATTR_DATA_SIZE;
data = (struct ufs_ioctl_query_data*)malloc(ioctl_data_size);
if (!data) {
fprintf(stderr, "%s: Failed to alloc query data struct\n",
__func__);
goto error;
}
memset(data, 0, ioctl_data_size);
data->opcode = UPIU_QUERY_OPCODE_WRITE_ATTR;
data->idn = QUERY_ATTR_IDN_BOOT_LU_EN;
data->buf_size = UFS_ATTR_DATA_SIZE;
data->buffer[0] = boot_lun_id;
fd = open(sg_dev, O_RDWR);
if (fd < 0) {
fprintf(stderr, "%s: Failed to open %s(%s)\n",
__func__,
sg_dev,
strerror(errno));
goto error;
}
rc = ioctl(fd, UFS_IOCTL_QUERY, data);
if (rc) {
fprintf(stderr, "%s: UFS query ioctl failed(%s)\n",
__func__,
strerror(errno));
goto error;
}
close(fd);
free(data);
return 0;
error:
if (fd >= 0)
close(fd);
if (data)
free(data);
return -1;
#else
return 0;
#endif
}
#endif

131
gpt-utils/recovery-ufs-bsg.h Normal file
View File

@ -0,0 +1,131 @@
#ifndef __RECOVERY_UFS_BSG_H__
#define __RECOVERY_UFS_BSG_H__
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/bsg.h>
#include <scsi/scsi_bsg_ufs.h>
#include <endian.h>
#include <dirent.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#ifdef ANDROID
#include "cutils/log.h"
#endif
#ifdef OE
#include <syslog.h>
#define LOGI(...) syslog(LOG_NOTICE, "INFO:" __VA_ARGS__)
#define LOGV(...) syslog(LOG_NOTICE,"VERB:" __VA_ARGS__)
#define LOGD(...) syslog(LOG_DEBUG,"DBG:" __VA_ARGS__)
#define LOGE(...) syslog(LOG_ERR,"ERR:" __VA_ARGS__)
#define LOGW(...) syslog(LOG_WARNING,"WRN:" __VA_ARGS__)
#define strlcat(d,s,l) snprintf(d+strlen(d),l,"%s",s)
#endif
#define FNAME_SZ 64
#define SG_IO 0x2285
#define DWORD(b3, b2, b1, b0) htobe32((b3 << 24) | (b2 << 16) |\
(b1 << 8) | b0)
/* UFS BSG device nodes */
char ufs_bsg_dev[FNAME_SZ] = "/dev/ufs-bsg";
int fd_ufs_bsg;
int32_t set_ufs_lun(uint8_t lun_id);
#ifdef _BSG_FRAMEWORK_KERNEL_HEADERS
/* UPIU Transaction Codes */
enum {
UTP_UPIU_NOP_OUT = 0x00,
UTP_UPIU_COMMAND = 0x01,
UTP_UPIU_DATA_OUT = 0x02,
UTP_UPIU_TASK_REQ = 0x04,
UTP_UPIU_QUERY_REQ = 0x16,
};
/* UPIU Query Function field */
enum {
QUERY_REQ_FUNC_STD_READ = 0x01,
QUERY_REQ_FUNC_STD_WRITE = 0x81,
};
enum query_req_opcode {
QUERY_REQ_OP_READ_DESC = 0x1,
QUERY_REQ_OP_WRITE_DESC = 0x2,
QUERY_REQ_OP_READ_ATTR = 0x3,
QUERY_REQ_OP_WRITE_ATTR = 0x4,
QUERY_REQ_OP_READ_FLAG = 0x5,
QUERY_REQ_OP_SET_FLAG = 0x6,
QUERY_REQ_OP_CLEAR_FLAG = 0x7,
QUERY_REQ_OP_TOGGLE_FLAG = 0x8,
};
enum query_desc_idn {
QUERY_DESC_IDN_DEVICE = 0x0,
QUERY_DESC_IDN_UNIT = 0x2,
QUERY_DESC_IDN_GEOMETRY = 0x7,
};
enum query_desc_size {
QUERY_DESC_SIZE_DEVICE = 0x40,
QUERY_DESC_SIZE_GEOMETRY = 0x48,
QUERY_DESC_SIZE_UNIT = 0x23,
};
enum bsg_ioctl_dir {
BSG_IOCTL_DIR_TO_DEV,
BSG_IOCTL_DIR_FROM_DEV,
};
enum query_attr_idn {
QUERY_ATTR_IDN_BOOT_LU_EN = 0x00,
QUERY_ATTR_IDN_RESERVED = 0x01,
QUERY_ATTR_IDN_POWER_MODE = 0x02,
QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03,
};
#endif /* _BSG_FRAMEWORK_KERNEL_HEADERS */
#endif /* __RECOVERY_UFS_BSG_H__ */

97
gpt-utils/sparse_crc32.cpp Normal file
View File

@ -0,0 +1,97 @@
/*-
* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
* code or tables extracted from it, as desired without restriction.
*/
/*
* First, the polynomial itself and its table of feedback terms. The
* polynomial is
* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
*
* Note that we take it "backwards" and put the highest-order term in
* the lowest-order bit. The X^32 term is "implied"; the LSB is the
* X^31 term, etc. The X^0 term (usually shown as "+1") results in
* the MSB being 1
*
* Note that the usual hardware shift register implementation, which
* is what we're using (we're merely optimizing it by doing eight-bit
* chunks at a time) shifts bits into the lowest-order term. In our
* implementation, that means shifting towards the right. Why do we
* do it this way? Because the calculated CRC must be transmitted in
* order from highest-order term to lowest-order term. UARTs transmit
* characters in order from LSB to MSB. By storing the CRC this way
* we hand it to the UART in the order low-byte to high-byte; the UART
* sends each low-bit to hight-bit; and the result is transmission bit
* by bit from highest- to lowest-order term without requiring any bit
* shuffling on our part. Reception works similarly
*
* The feedback terms table consists of 256, 32-bit entries. Notes
*
* The table can be generated at runtime if desired; code to do so
* is shown later. It might not be obvious, but the feedback
* terms simply represent the results of eight shift/xor opera
* tions for all combinations of data and CRC register values
*
* The values must be right-shifted by eight bits by the "updcrc
* logic; the shift must be unsigned (bring in zeroes). On some
* hardware you could probably optimize the shift in assembler by
* using byte-swap instructions
* polynomial $edb88320
*
*
* CRC32 code derived from work by Gary S. Brown.
*/
/* Code taken from FreeBSD 8 */
#include <stdint.h>
#include <stdio.h>
static uint32_t crc32_tab[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d};
/*
* A function that calculates the CRC-32 based on the table above is
* given below for documentation purposes. An equivalent implementation
* of this function that's actually used in the kernel can be found
* in sys/libkern.h, where it can be inlined.
*/
uint32_t sparse_crc32(uint32_t crc_in, const void* buf, size_t size) {
const uint8_t* p = reinterpret_cast<const uint8_t*>(buf);
uint32_t crc;
crc = crc_in ^ ~0U;
while (size--) crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
return crc ^ ~0U;
}

24
gpt-utils/sparse_crc32.h Normal file
View File

@ -0,0 +1,24 @@
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBSPARSE_SPARSE_CRC32_H_
#define _LIBSPARSE_SPARSE_CRC32_H_
#include <stdint.h>
uint32_t sparse_crc32(uint32_t crc, const void* buf, size_t size);
#endif