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replace common qcom sources with samsung ones

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This commit is contained in:
SaschaNes
2025-08-12 22:13:00 +02:00
parent ba24dcded9
commit 6f7753de11
5682 changed files with 2450203 additions and 103634 deletions
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11
qcom/opensource/mmc-utils/Android.mk Normal file
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LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := optional
LOCAL_SRC_FILES:= mmc.c mmc_cmds.c
LOCAL_MODULE := mmc_utils_internal
LOCAL_SHARED_LIBRARIES := libcutils libc
LOCAL_C_INCLUDES+= $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include
LOCAL_ADDITIONAL_DEPENDENCIES += $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
LOCAL_MODULE_PATH := $(TARGET_OUT_DATA)/mmc-utils
include $(BUILD_EXECUTABLE)

46
qcom/opensource/mmc-utils/Makefile Normal file
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CC = gcc
AM_CFLAGS = -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2
CFLAGS = -g -O2
objects = mmc.o mmc_cmds.o
CHECKFLAGS= -Wall -Werror -Wuninitialized -Wundef
DEPFLAGS = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
INSTALL = install
prefix ?= /usr/local
bindir = $(prefix)/bin
LIBS=
RESTORE_LIBS=
progs = mmc
# make C=1 to enable sparse
ifdef C
check = sparse $(CHECKFLAGS)
endif
all: $(progs) manpages
.c.o:
ifdef C
$(check) $<
endif
$(CC) $(CHECKFLAGS) $(AM_CFLAGS) $(DEPFLAGS) $(CFLAGS) -c $<
mmc: $(objects)
$(CC) $(CFLAGS) -o $@ $(objects) $(LDFLAGS) $(LIBS)
manpages:
cd man && make
install-man:
cd man && make install
clean:
rm -f $(progs) $(objects)
cd man && make clean
install: $(progs) install-man
$(INSTALL) -m755 -d $(DESTDIR)$(bindir)
$(INSTALL) $(progs) $(DESTDIR)$(bindir)

12
qcom/opensource/mmc-utils/etc/Android.bp Normal file
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prebuilt_etc {
name: "init.qti.ufs.rc",
src: "init.qti.ufs.rc",
vendor: true,
sub_dir: "init/hw",
}
sh_binary {
name: "init.qti.ufs.debug.sh",
src: "init.qti.ufs.debug.sh",
vendor: true,
}

54
qcom/opensource/mmc-utils/etc/init.qti.ufs.debug.sh Normal file
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#!/vendor/bin/sh
# 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.
#
# Enable various ufs ftrace debugging events
tracefs=/sys/kernel/tracing
ufs_node=$(ls /sys/bus/platform/devices/ | grep ufshc)
dbg=`cat /sys/bus/platform/devices/$ufs_node/qcom/dbg_state`
if [ -d $tracefs -a "$dbg" = 1 ]; then
mkdir $tracefs/instances/ufs
ufsevent=$tracefs/instances/ufs/set_event
echo ufshcd_clk_gating > $ufsevent
echo ufshcd_clk_scaling >> $ufsevent
echo ufshcd_runtime_suspend >> $ufsevent
echo ufshcd_runtime_resume >> $ufsevent
echo ufshcd_system_suspend >> $ufsevent
echo ufshcd_system_resume >> $ufsevent
echo ufshcd_command >> $ufsevent
# scsi
echo dispatch_cmd_start >> $ufsevent
echo scsi_dispatch_cmd_start >> $ufsevent
echo scsi_dispatch_cmd_error >> $ufsevent
echo scsi_dispatch_cmd_done >> $ufsevent
echo scsi_dispatch_cmd_timeout >> $ufsevent
fi

30
qcom/opensource/mmc-utils/etc/init.qti.ufs.rc Normal file
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# Copyright (c) 2011-2016, 2018-2020 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.
#
# on init
# exec u:r:vendor-qti-testscripts:s0 -- /vendor/bin/sh /vendor/bin/init.qti.ufs.debug.sh

2
qcom/opensource/mmc-utils/man/Makefile Normal file
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all:
clean:

373
qcom/opensource/mmc-utils/mmc.c Normal file
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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*
* (This code is based on btrfs-progs/btrfs.c.)
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mmc_cmds.h"
#define MMC_VERSION "0.1"
#define BASIC_HELP 0
#define ADVANCED_HELP 1
typedef int (*CommandFunction)(int argc, char **argv);
struct Command {
CommandFunction func; /* function which implements the command */
int nargs; /* if == 999, any number of arguments
if >= 0, number of arguments,
if < 0, _minimum_ number of arguments */
char *verb; /* verb */
char *help; /* help lines; from the 2nd line onward they
are automatically indented */
char *adv_help; /* advanced help message; from the 2nd line
onward they are automatically indented */
/* the following fields are run-time filled by the program */
char **cmds; /* array of subcommands */
int ncmds; /* number of subcommand */
};
static struct Command commands[] = {
/*
* avoid short commands different for the case only
*/
{ do_read_extcsd, -1,
"extcsd read", "<device>\n"
"Print extcsd data from <device>.",
NULL
},
{ do_writeprotect_get, -1,
"writeprotect get", "<device>\n"
"Determine the eMMC writeprotect status of <device>.",
NULL
},
{ do_writeprotect_set, -1,
"writeprotect set", "<device>\n"
"Set the eMMC writeprotect status of <device>.\nThis sets the eMMC to be write-protected until next boot.",
NULL
},
{ do_disable_512B_emulation, -1,
"disable 512B emulation", "<device>\n"
"Set the eMMC data sector size to 4KB by disabling emulation on\n<device>.",
NULL
},
{ do_write_boot_en, -3,
"bootpart enable", "<boot_partition> " "<send_ack> " "<device>\n"
"Enable the boot partition for the <device>.\nTo receive acknowledgment of boot from the card set <send_ack>\nto 1, else set it to 0.",
NULL
},
{ do_write_bkops_en, -1,
"bkops enable", "<device>\n"
"Enable the eMMC BKOPS feature on <device>.\nNOTE! This is a one-time programmable (unreversible) change.",
NULL
},
{ do_hwreset_en, -1,
"hwreset enable", "<device>\n"
"Permanently enable the eMMC H/W Reset feature on <device>.\nNOTE! This is a one-time programmable (unreversible) change.",
NULL
},
{ do_hwreset_dis, -1,
"hwreset disable", "<device>\n"
"Permanently disable the eMMC H/W Reset feature on <device>.\nNOTE! This is a one-time programmable (unreversible) change.",
NULL
},
{ do_sanitize, -1,
"sanitize", "<device>\n"
"Send Sanitize command to the <device>.\nThis will delete the unmapped memory region of the device.",
NULL
},
{ 0, 0, 0, 0 }
};
static char *get_prgname(char *programname)
{
char *np;
np = strrchr(programname,'/');
if(!np)
np = programname;
else
np++;
return np;
}
static void print_help(char *programname, struct Command *cmd, int helptype)
{
char *pc;
printf("\t%s %s ", programname, cmd->verb );
if (helptype == ADVANCED_HELP && cmd->adv_help)
for(pc = cmd->adv_help; *pc; pc++){
putchar(*pc);
if(*pc == '\n')
printf("\t\t");
}
else
for(pc = cmd->help; *pc; pc++){
putchar(*pc);
if(*pc == '\n')
printf("\t\t");
}
putchar('\n');
}
static void help(char *np)
{
struct Command *cp;
printf("Usage:\n");
for( cp = commands; cp->verb; cp++ )
print_help(np, cp, BASIC_HELP);
printf("\n\t%s help|--help|-h\n\t\tShow the help.\n",np);
printf("\n\t%s <cmd> --help\n\t\tShow detailed help for a command or subset of commands.\n",np);
printf("\n%s\n", MMC_VERSION);
}
static int split_command(char *cmd, char ***commands)
{
int c, l;
char *p, *s;
for( *commands = 0, l = c = 0, p = s = cmd ; ; p++, l++ ){
if ( *p && *p != ' ' )
continue;
/* c + 2 so that we have room for the null */
(*commands) = realloc( (*commands), sizeof(char *)*(c + 2));
(*commands)[c] = strndup(s, l);
c++;
l = 0;
s = p+1;
if( !*p ) break;
}
(*commands)[c] = 0;
return c;
}
/*
This function checks if the passed command is ambiguous
*/
static int check_ambiguity(struct Command *cmd, char **argv){
int i;
struct Command *cp;
/* check for ambiguity */
for( i = 0 ; i < cmd->ncmds ; i++ ){
int match;
for( match = 0, cp = commands; cp->verb; cp++ ){
int j, skip;
char *s1, *s2;
if( cp->ncmds < i )
continue;
for( skip = 0, j = 0 ; j < i ; j++ )
if( strcmp(cmd->cmds[j], cp->cmds[j])){
skip=1;
break;
}
if(skip)
continue;
if( !strcmp(cmd->cmds[i], cp->cmds[i]))
continue;
for(s2 = cp->cmds[i], s1 = argv[i+1];
*s1 == *s2 && *s1; s1++, s2++ ) ;
if( !*s1 )
match++;
}
if(match){
int j;
fprintf(stderr, "ERROR: in command '");
for( j = 0 ; j <= i ; j++ )
fprintf(stderr, "%s%s",j?" ":"", argv[j+1]);
fprintf(stderr, "', '%s' is ambiguous\n",argv[j]);
return -2;
}
}
return 0;
}
/*
* This function, compacts the program name and the command in the first
* element of the '*av' array
*/
static int prepare_args(int *ac, char ***av, char *prgname, struct Command *cmd ){
char **ret;
int i;
char *newname;
ret = (char **)malloc(sizeof(char*)*(*ac+1));
newname = (char*)malloc(strlen(prgname)+strlen(cmd->verb)+2);
if( !ret || !newname ){
free(ret);
free(newname);
return -1;
}
ret[0] = newname;
for(i=0; i < *ac ; i++ )
ret[i+1] = (*av)[i];
strcpy(newname, prgname);
strcat(newname, " ");
strcat(newname, cmd->verb);
(*ac)++;
*av = ret;
return 0;
}
/*
This function performs the following jobs:
- show the help if '--help' or 'help' or '-h' are passed
- verify that a command is not ambiguous, otherwise show which
part of the command is ambiguous
- if after a (even partial) command there is '--help' show detailed help
for all the matching commands
- if the command doesn't match show an error
- finally, if a command matches, they return which command matched and
the arguments
The function return 0 in case of help is requested; <0 in case
of uncorrect command; >0 in case of matching commands
argc, argv are the arg-counter and arg-vector (input)
*nargs_ is the number of the arguments after the command (output)
**cmd_ is the invoked command (output)
***args_ are the arguments after the command
*/
static int parse_args(int argc, char **argv,
CommandFunction *func_,
int *nargs_, char **cmd_, char ***args_ )
{
struct Command *cp;
struct Command *matchcmd=0;
char *prgname = get_prgname(argv[0]);
int i=0, helprequested=0;
if( argc < 2 || !strcmp(argv[1], "help") ||
!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")){
help(prgname);
return 0;
}
for( cp = commands; cp->verb; cp++ )
if( !cp->ncmds)
cp->ncmds = split_command(cp->verb, &(cp->cmds));
for( cp = commands; cp->verb; cp++ ){
int match;
if( argc-1 < cp->ncmds )
continue;
for( match = 1, i = 0 ; i < cp->ncmds ; i++ ){
char *s1, *s2;
s1 = cp->cmds[i];
s2 = argv[i+1];
for(s2 = cp->cmds[i], s1 = argv[i+1];
*s1 == *s2 && *s1;
s1++, s2++ ) ;
if( *s1 ){
match=0;
break;
}
}
/* If you understand why this code works ...
you are a genious !! */
if(argc>i+1 && !strcmp(argv[i+1],"--help")){
if(!helprequested)
printf("Usage:\n");
print_help(prgname, cp, ADVANCED_HELP);
helprequested=1;
continue;
}
if(!match)
continue;
matchcmd = cp;
*nargs_ = argc-matchcmd->ncmds-1;
*cmd_ = matchcmd->verb;
*args_ = argv+matchcmd->ncmds+1;
*func_ = cp->func;
break;
}
if(helprequested){
printf("\n%s\n", MMC_VERSION);
return 0;
}
if(!matchcmd){
fprintf( stderr, "ERROR: unknown command '%s'\n",argv[1]);
help(prgname);
return -1;
}
if(check_ambiguity(matchcmd, argv))
return -2;
/* check the number of argument */
if (matchcmd->nargs < 0 && matchcmd->nargs < -*nargs_ ){
fprintf(stderr, "ERROR: '%s' requires minimum %d arg(s)\n",
matchcmd->verb, -matchcmd->nargs);
return -2;
}
if(matchcmd->nargs >= 0 && matchcmd->nargs != *nargs_ && matchcmd->nargs != 999){
fprintf(stderr, "ERROR: '%s' requires %d arg(s)\n",
matchcmd->verb, matchcmd->nargs);
return -2;
}
if (prepare_args( nargs_, args_, prgname, matchcmd )){
fprintf(stderr, "ERROR: not enough memory\\n");
return -20;
}
return 1;
}
int main(int ac, char **av )
{
char *cmd=0, **args=0;
int nargs=0, r;
CommandFunction func=0;
r = parse_args(ac, av, &func, &nargs, &cmd, &args);
if( r <= 0 ){
/* error or no command to parse*/
exit(-r);
}
exit(func(nargs, args));
}

101
qcom/opensource/mmc-utils/mmc.h Normal file
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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#include <asm-generic/int-ll64.h>
#include <linux/mmc/ioctl.h>
#include <linux/major.h>
#include <stdio.h>
#define CHECK(expr, msg, err_stmt) { if (expr) { fprintf(stderr, msg); err_stmt; } }
/* From kernel linux/mmc/mmc.h */
#define MMC_SWITCH 6 /* ac [31:0] See below R1b */
#define MMC_SEND_EXT_CSD 8 /* adtc R1 */
#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
/*
* EXT_CSD fields
*/
#define EXT_CSD_S_CMD_SET 504
#define EXT_CSD_HPI_FEATURE 503
#define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
#define EXT_CSD_BOOT_INFO 228 /* R/W */
#define EXT_CSD_PART_SWITCH_TIME 199
#define EXT_CSD_BOOT_CFG 179
#define EXT_CSD_PART_CONFIG 179
#define EXT_CSD_BOOT_WP 173
#define EXT_CSD_WR_REL_PARAM 166
#define EXT_CSD_SANITIZE_START 165
#define EXT_CSD_BKOPS_EN 163 /* R/W */
#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
#define EXT_CSD_NATIVE_SECTOR_SIZE 63 /* R */
#define EXT_CSD_USE_NATIVE_SECTOR 62 /* R/W */
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
/*
* WR_REL_PARAM field definitions
*/
#define HS_CTRL_REL (1<<0)
#define EN_REL_WR (1<<2)
/*
* BKOPS_EN field definition
*/
#define BKOPS_ENABLE (1<<0)
/*
* EXT_CSD field definitions
*/
#define EXT_CSD_HPI_SUPP (1<<0)
#define EXT_CSD_HPI_IMPL (1<<1)
#define EXT_CSD_CMD_SET_NORMAL (1<<0)
#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40)
#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10)
#define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04)
#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01)
#define EXT_CSD_BOOT_INFO_HS_MODE (1<<2)
#define EXT_CSD_BOOT_INFO_DDR_DDR (1<<1)
#define EXT_CSD_BOOT_INFO_ALT (1<<0)
#define EXT_CSD_BOOT_CFG_ACK (1<<6)
#define EXT_CSD_BOOT_CFG_EN (0x38)
#define EXT_CSD_BOOT_CFG_ACC (0x03)
#define EXT_CSD_RST_N_EN_MASK (0x03)
#define EXT_CSD_HW_RESET_EN (0x01)
#define EXT_CSD_HW_RESET_DIS (0x02)
#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7)
#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1)
#define EXT_CSD_PART_CONFIG_ACC_BOOT1 (0x2)
#define EXT_CSD_PART_CONFIG_ACC_USER_AREA (0x7)
#define EXT_CSD_PART_CONFIG_ACC_ACK (0x40)
/* From kernel linux/mmc/core.h */
#define MMC_RSP_PRESENT (1 << 0)
#define MMC_RSP_136 (1 << 1) /* 136 bit response */
#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
#define MMC_CMD_AC (0 << 5)
#define MMC_CMD_ADTC (1 << 5)
#define MMC_RSP_SPI_S1 (1 << 7) /* one status byte */
#define MMC_RSP_SPI_BUSY (1 << 10) /* card may send busy */
#define MMC_RSP_SPI_R1 (MMC_RSP_SPI_S1)
#define MMC_RSP_SPI_R1B (MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY)
#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)

797
qcom/opensource/mmc-utils/mmc_cmds.c Normal file
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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <libgen.h>
#include <limits.h>
#include <ctype.h>
#include "mmc.h"
#include "mmc_cmds.h"
int read_extcsd(int fd, __u8 *ext_csd)
{
int ret = 0;
struct mmc_ioc_cmd idata;
memset(&idata, 0, sizeof(idata));
memset(ext_csd, 0, sizeof(__u8) * 512);
idata.write_flag = 0;
idata.opcode = MMC_SEND_EXT_CSD;
idata.arg = 0;
idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC;
idata.blksz = 512;
idata.blocks = 1;
mmc_ioc_cmd_set_data(idata, ext_csd);
ret = ioctl(fd, MMC_IOC_CMD, &idata);
if (ret)
perror("ioctl");
return ret;
}
int write_extcsd_value(int fd, __u8 index, __u8 value)
{
int ret = 0;
struct mmc_ioc_cmd idata;
memset(&idata, 0, sizeof(idata));
idata.write_flag = 1;
idata.opcode = MMC_SWITCH;
idata.arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
(index << 16) |
(value << 8) |
EXT_CSD_CMD_SET_NORMAL;
idata.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
ret = ioctl(fd, MMC_IOC_CMD, &idata);
if (ret)
perror("ioctl");
return ret;
}
void print_writeprotect_status(__u8 *ext_csd)
{
__u8 reg;
__u8 ext_csd_rev = ext_csd[192];
/* A43: reserved [174:0] */
if (ext_csd_rev >= 5) {
printf("Boot write protection status registers"
" [BOOT_WP_STATUS]: 0x%02x\n", ext_csd[174]);
reg = ext_csd[EXT_CSD_BOOT_WP];
printf("Boot Area Write protection [BOOT_WP]: 0x%02x\n", reg);
printf(" Power ro locking: ");
if (reg & EXT_CSD_BOOT_WP_B_PWR_WP_DIS)
printf("not possible\n");
else
printf("possible\n");
printf(" Permanent ro locking: ");
if (reg & EXT_CSD_BOOT_WP_B_PERM_WP_DIS)
printf("not possible\n");
else
printf("possible\n");
printf(" ro lock status: ");
if (reg & EXT_CSD_BOOT_WP_B_PWR_WP_EN)
printf("locked until next power on\n");
else if (reg & EXT_CSD_BOOT_WP_B_PERM_WP_EN)
printf("locked permanently\n");
else
printf("not locked\n");
}
}
int do_writeprotect_get(int nargs, char **argv)
{
__u8 ext_csd[512];
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc writeprotect get </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
print_writeprotect_status(ext_csd);
return ret;
}
int do_writeprotect_set(int nargs, char **argv)
{
__u8 ext_csd[512], value;
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc writeprotect set </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
value = ext_csd[EXT_CSD_BOOT_WP] |
EXT_CSD_BOOT_WP_B_PWR_WP_EN;
ret = write_extcsd_value(fd, EXT_CSD_BOOT_WP, value);
if (ret) {
fprintf(stderr, "Could not write 0x%02x to "
"EXT_CSD[%d] in %s\n",
value, EXT_CSD_BOOT_WP, device);
exit(1);
}
return ret;
}
int do_disable_512B_emulation(int nargs, char **argv)
{
__u8 ext_csd[512], native_sector_size, data_sector_size, wr_rel_param;
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc disable 512B emulation </path/to/mmcblkX>\n", exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
wr_rel_param = ext_csd[EXT_CSD_WR_REL_PARAM];
native_sector_size = ext_csd[EXT_CSD_NATIVE_SECTOR_SIZE];
data_sector_size = ext_csd[EXT_CSD_DATA_SECTOR_SIZE];
if (native_sector_size && !data_sector_size &&
(wr_rel_param & EN_REL_WR)) {
ret = write_extcsd_value(fd, EXT_CSD_USE_NATIVE_SECTOR, 1);
if (ret) {
fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n",
1, EXT_CSD_BOOT_WP, device);
exit(1);
}
printf("MMC disable 512B emulation successful. Now reset the device to switch to 4KB native sector mode.\n");
} else if (native_sector_size && data_sector_size) {
printf("MMC 512B emulation mode is already disabled; doing nothing.\n");
} else {
printf("MMC does not support disabling 512B emulation mode.\n");
}
return ret;
}
int do_write_boot_en(int nargs, char **argv)
{
__u8 ext_csd[512];
__u8 value = 0;
int fd, ret;
char *device;
int boot_area, send_ack;
CHECK(nargs != 4, "Usage: mmc bootpart enable <partition_number> "
"<send_ack> </path/to/mmcblkX>\n", exit(1));
/*
* If <send_ack> is 1, the device will send acknowledgment
* pattern "010" to the host when boot operation begins.
* If <send_ack> is 0, it won't.
*/
boot_area = strtol(argv[1], NULL, 10);
send_ack = strtol(argv[2], NULL, 10);
device = argv[3];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
value = ext_csd[EXT_CSD_PART_CONFIG];
switch (boot_area) {
case EXT_CSD_PART_CONFIG_ACC_BOOT0:
value |= (1 << 3);
value &= ~(3 << 4);
break;
case EXT_CSD_PART_CONFIG_ACC_BOOT1:
value |= (1 << 4);
value &= ~(1 << 3);
value &= ~(1 << 5);
break;
case EXT_CSD_PART_CONFIG_ACC_USER_AREA:
value |= (boot_area << 3);
break;
default:
fprintf(stderr, "Cannot enable the boot area\n");
exit(1);
}
if (send_ack)
value |= EXT_CSD_PART_CONFIG_ACC_ACK;
else
value &= ~EXT_CSD_PART_CONFIG_ACC_ACK;
ret = write_extcsd_value(fd, EXT_CSD_PART_CONFIG, value);
if (ret) {
fprintf(stderr, "Could not write 0x%02x to "
"EXT_CSD[%d] in %s\n",
value, EXT_CSD_PART_CONFIG, device);
exit(1);
}
return ret;
}
int do_hwreset(int value, int nargs, char **argv)
{
__u8 ext_csd[512];
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc hwreset enable </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) ==
EXT_CSD_HW_RESET_EN) {
fprintf(stderr,
"H/W Reset is already permanently enabled on %s\n",
device);
exit(1);
}
if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) ==
EXT_CSD_HW_RESET_DIS) {
fprintf(stderr,
"H/W Reset is already permanently disabled on %s\n",
device);
exit(1);
}
ret = write_extcsd_value(fd, EXT_CSD_RST_N_FUNCTION, value);
if (ret) {
fprintf(stderr,
"Could not write 0x%02x to EXT_CSD[%d] in %s\n",
value, EXT_CSD_RST_N_FUNCTION, device);
exit(1);
}
return ret;
}
int do_hwreset_en(int nargs, char **argv)
{
return do_hwreset(EXT_CSD_HW_RESET_EN, nargs, argv);
}
int do_hwreset_dis(int nargs, char **argv)
{
return do_hwreset(EXT_CSD_HW_RESET_DIS, nargs, argv);
}
int do_write_bkops_en(int nargs, char **argv)
{
__u8 ext_csd[512], value = 0;
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc bkops enable </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
if (!(ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1)) {
fprintf(stderr, "%s doesn't support BKOPS\n", device);
exit(1);
}
ret = write_extcsd_value(fd, EXT_CSD_BKOPS_EN, BKOPS_ENABLE);
if (ret) {
fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n",
value, EXT_CSD_BKOPS_EN, device);
exit(1);
}
return ret;
}
int do_read_extcsd(int nargs, char **argv)
{
__u8 ext_csd[512], ext_csd_rev, reg;
int fd, ret;
char *device;
const char *str;
CHECK(nargs != 2, "Usage: mmc extcsd read </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = read_extcsd(fd, ext_csd);
if (ret) {
fprintf(stderr, "Could not read EXT_CSD from %s\n", device);
exit(1);
}
ext_csd_rev = ext_csd[192];
switch (ext_csd_rev) {
case 6:
str = "4.5";
break;
case 5:
str = "4.41";
break;
case 3:
str = "4.3";
break;
case 2:
str = "4.2";
break;
case 1:
str = "4.1";
break;
case 0:
str = "4.0";
break;
default:
goto out_free;
}
printf("=============================================\n");
printf(" Extended CSD rev 1.%d (MMC %s)\n", ext_csd_rev, str);
printf("=============================================\n\n");
if (ext_csd_rev < 3)
goto out_free; /* No ext_csd */
/* Parse the Extended CSD registers.
* Reserved bit should be read as "0" in case of spec older
* than A441.
*/
reg = ext_csd[EXT_CSD_S_CMD_SET];
printf("Card Supported Command sets [S_CMD_SET: 0x%02x]\n", reg);
if (!reg)
printf(" - Standard MMC command sets\n");
reg = ext_csd[EXT_CSD_HPI_FEATURE];
printf("HPI Features [HPI_FEATURE: 0x%02x]: ", reg);
if (reg & EXT_CSD_HPI_SUPP) {
if (reg & EXT_CSD_HPI_IMPL)
printf("implementation based on CMD12\n");
else
printf("implementation based on CMD13\n");
}
printf("Background operations support [BKOPS_SUPPORT: 0x%02x]\n",
ext_csd[502]);
if (ext_csd_rev >= 6) {
printf("Max Packet Read Cmd [MAX_PACKED_READS: 0x%02x]\n",
ext_csd[501]);
printf("Max Packet Write Cmd [MAX_PACKED_WRITES: 0x%02x]\n",
ext_csd[500]);
printf("Data TAG support [DATA_TAG_SUPPORT: 0x%02x]\n",
ext_csd[499]);
printf("Data TAG Unit Size [TAG_UNIT_SIZE: 0x%02x]\n",
ext_csd[498]);
printf("Tag Resources Size [TAG_RES_SIZE: 0x%02x]\n",
ext_csd[497]);
printf("Context Management Capabilities"
" [CONTEXT_CAPABILITIES: 0x%02x]\n", ext_csd[496]);
printf("Large Unit Size [LARGE_UNIT_SIZE_M1: 0x%02x]\n",
ext_csd[495]);
printf("Extended partition attribute support"
" [EXT_SUPPORT: 0x%02x]\n", ext_csd[494]);
printf("Generic CMD6 Timer [GENERIC_CMD6_TIME: 0x%02x]\n",
ext_csd[248]);
printf("Power off notification [POWER_OFF_LONG_TIME: 0x%02x]\n",
ext_csd[247]);
printf("Cache Size [CACHE_SIZE] is %d KiB\n",
ext_csd[249] << 0 | (ext_csd[250] << 8) |
(ext_csd[251] << 16) | (ext_csd[252] << 24));
}
/* A441: Reserved [501:247]
A43: reserved [246:229] */
if (ext_csd_rev >= 5) {
printf("Background operations status"
" [BKOPS_STATUS: 0x%02x]\n", ext_csd[246]);
/* CORRECTLY_PRG_SECTORS_NUM [245:242] TODO */
printf("1st Initialisation Time after programmed sector"
" [INI_TIMEOUT_AP: 0x%02x]\n", ext_csd[241]);
/* A441: reserved [240] */
printf("Power class for 52MHz, DDR at 3.6V"
" [PWR_CL_DDR_52_360: 0x%02x]\n", ext_csd[239]);
printf("Power class for 52MHz, DDR at 1.95V"
" [PWR_CL_DDR_52_195: 0x%02x]\n", ext_csd[238]);
/* A441: reserved [237-236] */
if (ext_csd_rev >= 6) {
printf("Power class for 200MHz at 3.6V"
" [PWR_CL_200_360: 0x%02x]\n", ext_csd[237]);
printf("Power class for 200MHz, at 1.95V"
" [PWR_CL_200_195: 0x%02x]\n", ext_csd[236]);
}
printf("Minimum Performance for 8bit at 52MHz in DDR mode:\n");
printf(" [MIN_PERF_DDR_W_8_52: 0x%02x]\n", ext_csd[235]);
printf(" [MIN_PERF_DDR_R_8_52: 0x%02x]\n", ext_csd[234]);
/* A441: reserved [233] */
printf("TRIM Multiplier [TRIM_MULT: 0x%02x]\n", ext_csd[232]);
printf("Secure Feature support [SEC_FEATURE_SUPPORT: 0x%02x]\n",
ext_csd[231]);
}
if (ext_csd_rev == 5) { /* Obsolete in 4.5 */
printf("Secure Erase Multiplier [SEC_ERASE_MULT: 0x%02x]\n",
ext_csd[230]);
printf("Secure TRIM Multiplier [SEC_TRIM_MULT: 0x%02x]\n",
ext_csd[229]);
}
reg = ext_csd[EXT_CSD_BOOT_INFO];
printf("Boot Information [BOOT_INFO: 0x%02x]\n", reg);
if (reg & EXT_CSD_BOOT_INFO_ALT)
printf(" Device supports alternative boot method\n");
if (reg & EXT_CSD_BOOT_INFO_DDR_DDR)
printf(" Device supports dual data rate during boot\n");
if (reg & EXT_CSD_BOOT_INFO_HS_MODE)
printf(" Device supports high speed timing during boot\n");
/* A441/A43: reserved [227] */
printf("Boot partition size [BOOT_SIZE_MULTI: 0x%02x]\n", ext_csd[226]);
printf("Access size [ACC_SIZE: 0x%02x]\n", ext_csd[225]);
printf("High-capacity erase unit size [HC_ERASE_GRP_SIZE: 0x%02x]\n",
ext_csd[224]);
printf("High-capacity erase timeout [ERASE_TIMEOUT_MULT: 0x%02x]\n",
ext_csd[223]);
printf("Reliable write sector count [REL_WR_SEC_C: 0x%02x]\n",
ext_csd[222]);
printf("High-capacity W protect group size [HC_WP_GRP_SIZE: 0x%02x]\n",
ext_csd[221]);
printf("Sleep current (VCC) [S_C_VCC: 0x%02x]\n", ext_csd[220]);
printf("Sleep current (VCCQ) [S_C_VCCQ: 0x%02x]\n", ext_csd[219]);
/* A441/A43: reserved [218] */
printf("Sleep/awake timeout [S_A_TIMEOUT: 0x%02x]\n", ext_csd[217]);
/* A441/A43: reserved [216] */
printf("Sector Count [SEC_COUNT: 0x%08x]\n", (ext_csd[215] << 24) |
(ext_csd[214] << 16) | (ext_csd[213] << 8) |
ext_csd[212]);
/* A441/A43: reserved [211] */
printf("Minimum Write Performance for 8bit:\n");
printf(" [MIN_PERF_W_8_52: 0x%02x]\n", ext_csd[210]);
printf(" [MIN_PERF_R_8_52: 0x%02x]\n", ext_csd[209]);
printf(" [MIN_PERF_W_8_26_4_52: 0x%02x]\n", ext_csd[208]);
printf(" [MIN_PERF_R_8_26_4_52: 0x%02x]\n", ext_csd[207]);
printf("Minimum Write Performance for 4bit:\n");
printf(" [MIN_PERF_W_4_26: 0x%02x]\n", ext_csd[206]);
printf(" [MIN_PERF_R_4_26: 0x%02x]\n", ext_csd[205]);
/* A441/A43: reserved [204] */
printf("Power classes registers:\n");
printf(" [PWR_CL_26_360: 0x%02x]\n", ext_csd[203]);
printf(" [PWR_CL_52_360: 0x%02x]\n", ext_csd[202]);
printf(" [PWR_CL_26_195: 0x%02x]\n", ext_csd[201]);
printf(" [PWR_CL_52_195: 0x%02x]\n", ext_csd[200]);
/* A43: reserved [199:198] */
if (ext_csd_rev >= 5) {
printf("Partition switching timing "
"[PARTITION_SWITCH_TIME: 0x%02x]\n", ext_csd[199]);
printf("Out-of-interrupt busy timing"
" [OUT_OF_INTERRUPT_TIME: 0x%02x]\n", ext_csd[198]);
}
/* A441/A43: reserved [197] [195] [193] [190] [188]
* [186] [184] [182] [180] [176] */
if (ext_csd_rev >= 6)
printf("I/O Driver Strength [DRIVER_STRENGTH: 0x%02x]\n",
ext_csd[197]);
printf("Card Type [CARD_TYPE: 0x%02x]\n", ext_csd[196]);
/* DEVICE_TYPE in A45 */
switch (reg) {
case 5:
printf("HS200 Single Data Rate eMMC @200MHz 1.2VI/O\n");
break;
case 4:
printf("HS200 Single Data Rate eMMC @200MHz 1.8VI/O\n");
break;
case 3:
printf("HS Dual Data Rate eMMC @52MHz 1.2VI/O\n");
break;
case 2:
printf("HS Dual Data Rate eMMC @52MHz 1.8V or 3VI/O\n");
break;
case 1:
printf("HS eMMC @52MHz - at rated device voltage(s)\n");
break;
case 0:
printf("HS eMMC @26MHz - at rated device voltage(s)\n");
break;
}
printf("CSD structure version [CSD_STRUCTURE: 0x%02x]\n", ext_csd[194]);
/* ext_csd_rev = ext_csd[192] (already done!!!) */
printf("Command set [CMD_SET: 0x%02x]\n", ext_csd[191]);
printf("Command set revision [CMD_SET_REV: 0x%02x]\n", ext_csd[189]);
printf("Power class [POWER_CLASS: 0x%02x]\n", ext_csd[187]);
printf("High-speed interface timing [HS_TIMING: 0x%02x]\n",
ext_csd[185]);
/* bus_width: ext_csd[183] not readable */
printf("Erased memory content [ERASED_MEM_CONT: 0x%02x]\n",
ext_csd[181]);
reg = ext_csd[EXT_CSD_BOOT_CFG];
printf("Boot configuration bytes [PARTITION_CONFIG: 0x%02x]\n", reg);
switch (reg & EXT_CSD_BOOT_CFG_EN) {
case 0x0:
printf(" Not boot enable\n");
break;
case 0x1:
printf(" Boot Partition 1 enabled\n");
break;
case 0x2:
printf(" Boot Partition 2 enabled\n");
break;
case 0x7:
printf(" User Area Enabled for boot\n");
break;
}
switch (reg & EXT_CSD_BOOT_CFG_ACC) {
case 0x0:
printf(" No access to boot partition\n");
break;
case 0x1:
printf(" R/W Boot Partition 1\n");
break;
case 0x2:
printf(" R/W Boot Partition 2\n");
break;
default:
printf(" Access to General Purpuse partition %d\n",
(reg & EXT_CSD_BOOT_CFG_ACC) - 3);
break;
}
printf("Boot config protection [BOOT_CONFIG_PROT: 0x%02x]\n",
ext_csd[178]);
printf("Boot bus Conditions [BOOT_BUS_CONDITIONS: 0x%02x]\n",
ext_csd[177]);
printf("High-density erase group definition"
" [ERASE_GROUP_DEF: 0x%02x]\n", ext_csd[175]);
print_writeprotect_status(ext_csd);
if (ext_csd_rev >= 5) {
/* A441]: reserved [172] */
printf("User area write protection register"
" [USER_WP]: 0x%02x\n", ext_csd[171]);
/* A441]: reserved [170] */
printf("FW configuration [FW_CONFIG]: 0x%02x\n", ext_csd[169]);
printf("RPMB Size [RPMB_SIZE_MULT]: 0x%02x\n", ext_csd[168]);
printf("Write reliability setting register"
" [WR_REL_SET]: 0x%02x\n", ext_csd[167]);
printf("Write reliability parameter register"
" [WR_REL_PARAM]: 0x%02x\n", ext_csd[166]);
/* sanitize_start ext_csd[165]]: not readable
* bkops_start ext_csd[164]]: only writable */
printf("Enable background operations handshake"
" [BKOPS_EN]: 0x%02x\n", ext_csd[163]);
printf("H/W reset function"
" [RST_N_FUNCTION]: 0x%02x\n", ext_csd[162]);
printf("HPI management [HPI_MGMT]: 0x%02x\n", ext_csd[161]);
reg = ext_csd[160];
printf("Partitioning Support [PARTITIONING_SUPPORT]: 0x%02x\n",
reg);
if (reg & 0x1)
printf(" Device support partitioning feature\n");
else
printf(" Device NOT support partitioning feature\n");
if (reg & 0x2)
printf(" Device can have enhanced tech.\n");
else
printf(" Device cannot have enhanced tech.\n");
printf("Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x%06x\n",
(ext_csd[159] << 16) | (ext_csd[158] << 8) |
ext_csd[157]);
printf("Partitions attribute [PARTITIONS_ATTRIBUTE]: 0x%02x\n",
ext_csd[156]);
printf("Partitioning Setting"
" [PARTITION_SETTING_COMPLETED]: 0x%02x\n",
ext_csd[155]);
printf("General Purpose Partition Size\n"
" [GP_SIZE_MULT_4]: 0x%06x\n", (ext_csd[154] << 16) |
(ext_csd[153] << 8) | ext_csd[152]);
printf(" [GP_SIZE_MULT_3]: 0x%06x\n", (ext_csd[151] << 16) |
(ext_csd[150] << 8) | ext_csd[149]);
printf(" [GP_SIZE_MULT_2]: 0x%06x\n", (ext_csd[148] << 16) |
(ext_csd[147] << 8) | ext_csd[146]);
printf(" [GP_SIZE_MULT_1]: 0x%06x\n", (ext_csd[145] << 16) |
(ext_csd[144] << 8) | ext_csd[143]);
printf("Enhanced User Data Area Size"
" [ENH_SIZE_MULT]: 0x%06x\n", (ext_csd[142] << 16) |
(ext_csd[141] << 8) | ext_csd[140]);
printf("Enhanced User Data Start Address"
" [ENH_START_ADDR]: 0x%06x\n", (ext_csd[139] << 16) |
(ext_csd[138] << 8) | ext_csd[137]);
/* A441]: reserved [135] */
printf("Bad Block Management mode"
" [SEC_BAD_BLK_MGMNT]: 0x%02x\n", ext_csd[134]);
/* A441: reserved [133:0] */
}
/* B45 */
if (ext_csd_rev >= 6) {
int j;
/* tcase_support ext_csd[132] not readable */
printf("Periodic Wake-up [PERIODIC_WAKEUP]: 0x%02x\n",
ext_csd[131]);
printf("Program CID/CSD in DDR mode support"
" [PROGRAM_CID_CSD_DDR_SUPPORT]: 0x%02x\n",
ext_csd[130]);
for (j = 127; j >= 64; j--)
printf("Vendor Specific Fields"
" [VENDOR_SPECIFIC_FIELD[%d]]: 0x%02x\n",
j, ext_csd[j]);
printf("Native sector size [NATIVE_SECTOR_SIZE]: 0x%02x\n",
ext_csd[63]);
printf("Sector size emulation [USE_NATIVE_SECTOR]: 0x%02x\n",
ext_csd[62]);
printf("Sector size [DATA_SECTOR_SIZE]: 0x%02x\n", ext_csd[61]);
printf("1st initialization after disabling sector"
" size emulation [INI_TIMEOUT_EMU]: 0x%02x\n",
ext_csd[60]);
printf("Class 6 commands control [CLASS_6_CTRL]: 0x%02x\n",
ext_csd[59]);
printf("Number of addressed group to be Released"
"[DYNCAP_NEEDED]: 0x%02x\n", ext_csd[58]);
printf("Exception events control"
" [EXCEPTION_EVENTS_CTRL]: 0x%04x\n",
(ext_csd[57] << 8) | ext_csd[56]);
printf("Exception events status"
"[EXCEPTION_EVENTS_STATUS]: 0x%04x\n",
(ext_csd[55] << 8) | ext_csd[54]);
printf("Extended Partitions Attribute"
" [EXT_PARTITIONS_ATTRIBUTE]: 0x%04x\n",
(ext_csd[53] << 8) | ext_csd[52]);
for (j = 51; j >= 37; j--)
printf("Context configuration"
" [CONTEXT_CONF[%d]]: 0x%02x\n", j, ext_csd[j]);
printf("Packed command status"
" [PACKED_COMMAND_STATUS]: 0x%02x\n", ext_csd[36]);
printf("Packed command failure index"
" [PACKED_FAILURE_INDEX]: 0x%02x\n", ext_csd[35]);
printf("Power Off Notification"
" [POWER_OFF_NOTIFICATION]: 0x%02x\n", ext_csd[34]);
printf("Control to turn the Cache ON/OFF" " [CACHE_CTRL]: 0x%02x\n", ext_csd[33]);
/* flush_cache ext_csd[32] not readable */
/*Reserved [31:0] */
}
out_free:
return ret;
}
int do_sanitize(int nargs, char **argv)
{
int fd, ret;
char *device;
CHECK(nargs != 2, "Usage: mmc sanitize </path/to/mmcblkX>\n",
exit(1));
device = argv[1];
fd = open(device, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
ret = write_extcsd_value(fd, EXT_CSD_SANITIZE_START, 1);
if (ret) {
fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n",
1, EXT_CSD_SANITIZE_START, device);
exit(1);
}
return ret;
}

27
qcom/opensource/mmc-utils/mmc_cmds.h Normal file
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@@ -0,0 +1,27 @@
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
/* mmc_cmds.c */
int do_read_extcsd(int nargs, char **argv);
int do_write_extcsd(int nargs, char **argv);
int do_writeprotect_get(int nargs, char **argv);
int do_writeprotect_set(int nargs, char **argv);
int do_disable_512B_emulation(int nargs, char **argv);
int do_write_boot_en(int nargs, char **argv);
int do_write_bkops_en(int nargs, char **argv);
int do_hwreset_en(int nargs, char **argv);
int do_hwreset_dis(int nargs, char **argv);
int do_sanitize(int nargs, char **argv);

8
qcom/opensource/mmc-utils/vendor_product.mk Normal file
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@@ -0,0 +1,8 @@
# UFS init scripts
PRODUCT_PACKAGES += init.qti.ufs.rc
# additional debugging on userdebug/eng builds
ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))
PRODUCT_PACKAGES += init.qti.ufs.debug.sh
endif