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authorFelix Fietkau <nbd@openwrt.org>2006-11-22 23:27:29 +0000
committerFelix Fietkau <nbd@openwrt.org>2006-11-22 23:27:29 +0000
commit37362df7ea5978750f4584d2ce48623c59ef0695 (patch)
tree8f8734b13f1e320ab42aed2a46bb22472a61c479 /target/linux/brcm-2.4
parentbd8e5fb7db8431d22fad5eb72a2a38c0f1b50f45 (diff)
downloadupstream-37362df7ea5978750f4584d2ce48623c59ef0695.tar.gz
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move platform specific base-files into target/linux/<targetname>
SVN-Revision: 5621
Diffstat (limited to 'target/linux/brcm-2.4')
-rw-r--r--target/linux/brcm-2.4/base-files.mk12
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/bin/firstboot128
-rw-r--r--target/linux/brcm-2.4/base-files/etc/diag.sh28
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/etc/init.d/done15
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/etc/init.d/netconfig98
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/etc/preinit74
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/sbin/hotplug.failsafe4
-rwxr-xr-xtarget/linux/brcm-2.4/base-files/sbin/mount_root31
-rw-r--r--target/linux/brcm-2.4/src/jffs2root.c133
-rw-r--r--target/linux/brcm-2.4/src/mtd.h304
10 files changed, 827 insertions, 0 deletions
diff --git a/target/linux/brcm-2.4/base-files.mk b/target/linux/brcm-2.4/base-files.mk
new file mode 100644
index 0000000000..9a2e365b67
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files.mk
@@ -0,0 +1,12 @@
+define Build/Compile
+ $(call Build/Compile/Default)
+ $(TARGET_CC) -I $(PLATFORM_DIR)/src -o $(PKG_BUILD_DIR)/jffs2root $(PLATFORM_DIR)/src/jffs2root.c
+endef
+
+define Package/base-files/install-target
+ rm -f $(1)/etc/config/network
+ mkdir -p $(1)/sbin
+ $(CP) $(PKG_BUILD_DIR)/jffs2root $(1)/sbin
+endef
+
+
diff --git a/target/linux/brcm-2.4/base-files/bin/firstboot b/target/linux/brcm-2.4/base-files/bin/firstboot
new file mode 100755
index 0000000000..c3d9a64b87
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/bin/firstboot
@@ -0,0 +1,128 @@
+#!/bin/sh
+# $Id$
+. /etc/functions.sh
+
+partname="OpenWrt"
+mtdpart="$(find_mtd_part $partname)"
+
+rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
+jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
+
+dupe() { # <new_root> <old_root>
+ cd $1
+ echo -n "creating directories... "
+ {
+ cd $2
+ find . -xdev -type d
+ echo "./dev ./jffs ./mnt ./proc ./tmp"
+ # xdev skips mounted directories
+ cd $1
+ } | xargs mkdir -p
+ echo "done"
+
+ echo -n "setting up symlinks... "
+ for file in $(cd $2; find . -xdev -type f;); do
+ case "$file" in
+ ./rom/note) ;; #nothing
+ ./etc/config*|\
+ ./usr/lib/ipkg/info/*) cp -af $2/$file $file;;
+ *) ln -sf /rom/${file#./*} $file;;
+ esac
+ done
+ for file in $(cd $2; find . -xdev -type l;); do
+ cp -af $2/${file#./*} $file
+ done
+ echo "done"
+}
+
+pivot() { # <new_root> <old_root>
+ mount -o move /proc $1/proc && \
+ pivot_root $1 $1$2 && {
+ mount -o move $2/dev /dev
+ mount -o move $2/tmp /tmp
+ mount -o move $2/jffs /jffs 2>&-
+ return 0
+ }
+}
+
+fopivot() { # <rw_root> <ro_root> <dupe?>
+ root=$1
+ {
+ mount -t mini_fo -o base=/,sto=$1 $1 /mnt 2>&- && root=/mnt
+ } || {
+ [ "$3" = "1" ] && {
+ mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
+ dupe $1 $rom
+ }
+ }
+ pivot $root $2
+}
+
+ramoverlay() {
+ mkdir -p /tmp/root
+ fopivot /tmp/root /rom 1
+}
+
+# invoked as an executable
+[ "${0##*/}" = "firstboot" ] && {
+
+ [ -z "$mtdpart" ] && {
+ echo "MTD partition not found."
+ exit 1
+ }
+
+ [ -z "$rom" ] && {
+ echo "You do not have a squashfs partition; aborting"
+ echo "(firstboot cannot be run on jffs2 based firmwares)"
+ exit 1
+ }
+
+ [ "$1" = "switch2jffs" ] && {
+ mtd erase "$partname"
+
+ # try to avoid fs changing while copying
+ mount -o remount,ro none / 2>&-
+
+ # copy ramoverlay to jffs2
+ mount "$mtdpart" /rom/jffs -t jffs2
+ echo -n "copying files ... "
+ cp -a /tmp/root/* /rom/jffs 2>&-
+ echo "done"
+
+ # switch back to squashfs (temporarily)
+ # and park the ramdisk ontop of /tmp/root
+ pivot /rom /mnt
+ mount -o move /mnt /tmp/root
+
+ # /jffs is the overlay
+ # /rom is the readonly
+ fopivot /jffs /rom
+
+ # try to get rid of /tmp/root
+ # this will almost always fail
+ umount /tmp/root 2>&-
+
+ # fs is clean
+ jffs2root --clean
+ exit 0
+ }
+
+ # script run manually
+ [ \! -z "$jffs" ] && {
+ echo "firstboot has already been run"
+ echo "jffs2 partition is mounted, only resetting files"
+ grep mini_fo /proc/filesystems >&-
+ [ $? != 0 ] && {
+ dupe $jffs $rom
+ exit 0
+ } || {
+ rm -rf $jffs/* 2>&-
+ mount -o remount $jffs / 2>&-
+ exit 0
+ }
+ }
+
+ mtd erase "$partname"
+ mount "$mtdpart" /jffs -t jffs2
+ fopivot /jffs /rom 1
+}
diff --git a/target/linux/brcm-2.4/base-files/etc/diag.sh b/target/linux/brcm-2.4/base-files/etc/diag.sh
new file mode 100644
index 0000000000..3b08554c64
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/etc/diag.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+set_led() {
+ local led="$1"
+ local state="$2"
+ [ -f "/proc/diag/led/$1" ] && echo "$state" > "/proc/diag/led/$1"
+}
+
+set_state() {
+ case "$1" in
+ preinit)
+ set_led dmz 1
+ set_led diag 1
+ set_led power 0
+ ;;
+ failsafe)
+ set_led diag f
+ set_led power f
+ set_led dmz f
+ ;;
+ done)
+ set_led dmz 0
+ set_led diag 0
+ set_led power 1
+ ;;
+ esac
+}
diff --git a/target/linux/brcm-2.4/base-files/etc/init.d/done b/target/linux/brcm-2.4/base-files/etc/init.d/done
new file mode 100755
index 0000000000..0640b61938
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/etc/init.d/done
@@ -0,0 +1,15 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006 OpenWrt.org
+
+START=95
+boot() {
+ [ -d /tmp/root ] && {
+ lock /tmp/.switch2jffs
+ firstboot switch2jffs
+ lock -u /tmp/.switch2jffs
+ }
+
+ # set leds to normal state
+ . /etc/diag.sh
+ set_state done
+}
diff --git a/target/linux/brcm-2.4/base-files/etc/init.d/netconfig b/target/linux/brcm-2.4/base-files/etc/init.d/netconfig
new file mode 100755
index 0000000000..fe39f50516
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/etc/init.d/netconfig
@@ -0,0 +1,98 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006 OpenWrt.org
+
+START=05
+
+start() {
+ [ -e /etc/config/network ] && exit 0
+
+ mkdir -p /etc/config
+
+ (
+ if grep -E 'mtd0: 000(6|a)0000' /proc/mtd 2>&- >&-; then
+ # WGT634u
+ echo boardtype=wgt634u
+ else
+ strings /dev/mtdblock/3
+ fi
+ ) | awk '
+ function p(cfgname, name) {
+ if (c[name] != "") print " option " cfgname " \"" c[name] "\""
+ }
+
+ BEGIN {
+ FS="="
+ c["lan_ifname"]="eth0.0"
+ c["wan_ifname"]="eth0.1"
+ c["vlan0ports"]="1 2 3 4 5*"
+ c["vlan1ports"]="0 5"
+ }
+
+ ($1 == "boardnum") || ($1 == "boardtype") || ($1 == "boardflags") {
+ nvram[$1] = $2
+ }
+
+ END {
+ # v1 hardware
+ if (nvram["boardtype"] == "bcm94710dev") {
+ # Asus WL-500g
+ if (nvram["boardnum"] == "asusX") {
+ c["lan_ifname"]="eth0 eth1" # FIXME
+ c["wan_ifname"]=""
+ }
+ }
+ if (nvram["boardtype"] == "bcm94710r4") {
+ # Toshiba WRC-1000
+ c["lan_ifname"] = "eth0"
+ c["wan_ifname"] = "eth1"
+ }
+ if (nvram["boardtype"] == "wgt634u") {
+ c["vlan0ports"] = "0 1 2 3 5*"
+ c["vlan1ports"] = "4 5"
+ }
+ if ((nvram["boardtype"] == "0x0467") || (nvram["boardtype"] == "0x042f")) {
+ if (nvram["boardnum"] == "45") {
+ c["vlan0ports"] = "1 2 3 4 5*"
+ c["vlan1ports"] = "0 5"
+ } else {
+ c["vlan0ports"] = "0 1 2 3 5*"
+ c["vlan1ports"] = "4 5"
+ }
+ }
+
+ # WAP54G
+ if ((nvram["boardnum"] == "2") || \
+ (nvram["boardnum"] == "1024")) {
+ c["lan_ifname"]="eth0"
+ c["wan_ifname"]=""
+ }
+
+ print "#### VLAN configuration "
+ print "config switch eth0"
+ p("vlan0", "vlan0ports")
+ p("vlan1", "vlan1ports")
+ print ""
+ print ""
+ print "#### Loopback configuration"
+ print "config interface loopback"
+ print " option ifname \"lo\""
+ print " option proto static"
+ print " option ipaddr 127.0.0.1"
+ print " option netmask 255.0.0.0"
+ print ""
+ print ""
+ print "#### LAN configuration"
+ print "config interface lan"
+ print " option type bridge"
+ p("ifname", "lan_ifname")
+ print " option proto static"
+ print " option ipaddr 192.168.1.1"
+ print " option netmask 255.255.255.0"
+ print ""
+ print ""
+ print "#### WAN configuration"
+ print "config interface wan"
+ p("ifname", "wan_ifname")
+ print " option proto dhcp"
+ }' > /etc/config/network
+}
diff --git a/target/linux/brcm-2.4/base-files/etc/preinit b/target/linux/brcm-2.4/base-files/etc/preinit
new file mode 100755
index 0000000000..30aed35518
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/etc/preinit
@@ -0,0 +1,74 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+. /etc/functions.sh
+. /etc/diag.sh
+
+failsafe() {
+ lock /tmp/.failsafe
+
+ echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
+
+ set_state failsafe
+ [ -x "/usr/sbin/nvram" ] && {
+ [ "$(nvram get boot_wait)" != "on" ] && {
+ nvram set boot_wait=on
+ nvram commit
+ }
+ }
+
+ netmsg 192.168.1.255 "Entering Failsafe!"
+ telnetd -l /bin/login <> /dev/null 2>&1
+
+ ash --login
+ lock -u /tmp/.failsafe
+}
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+mount none /proc -t proc
+size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+mount none /tmp -t tmpfs -o size=$size
+
+insmod diag
+set_state preinit
+trap 'FAILSAFE=true' USR1
+echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
+
+ifname=eth0
+
+# hardware specific overrides
+case "$(cat /proc/diag/model)" in
+ "Linksys WAP54G V1") ifname=eth1;;
+ "ASUS WL-HDD") ifname=eth1;;
+ "ASUS WL-300g") ifname=eth1;;
+ "ASUS (unknown, BCM4702)") ifname=eth1;;
+esac
+
+insmod switch-core
+insmod switch-robo || insmod switch-adm || rmmod switch-core
+
+ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
+
+[ -d /proc/switch/eth0 ] && {
+ echo 1 > /proc/switch/eth0/reset
+
+ # this would be easier if we blasted the message across all ports
+ # but we don't want packets leaking across interfaces
+ for port in $(seq 0 4); do {
+ echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
+ netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+ }; done
+} || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+
+sleep 2
+
+eval ${FAILSAFE:+failsafe}
+
+lock -w /tmp/.failsafe
+set_state preinit
+echo /sbin/hotplug > /proc/sys/kernel/hotplug
+
+ifconfig $ifname 0.0.0.0 down
+
+mount_root
+exec /sbin/init
diff --git a/target/linux/brcm-2.4/base-files/sbin/hotplug.failsafe b/target/linux/brcm-2.4/base-files/sbin/hotplug.failsafe
new file mode 100755
index 0000000000..0544339de8
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/sbin/hotplug.failsafe
@@ -0,0 +1,4 @@
+#!/bin/sh
+case "$1" in
+ button) kill -USR1 1;;
+esac
diff --git a/target/linux/brcm-2.4/base-files/sbin/mount_root b/target/linux/brcm-2.4/base-files/sbin/mount_root
new file mode 100755
index 0000000000..ffa6072c66
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/sbin/mount_root
@@ -0,0 +1,31 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+is_dirty() {
+ grep Broadcom /proc/cpuinfo >&- || return 1
+ OFFSET="$(($(hexdump -v /dev/mtdblock/1 -s 20 -n 2 -e '"%d"')-1))"
+ return $(hexdump -v /dev/mtdblock/1 -s $OFFSET -n 1 -e '"%d"')
+}
+
+if [ "$1" != "failsafe" ]; then
+ mtd unlock linux
+ mount | grep jffs2 >&-
+ if [ $? = 0 ] ; then
+ mount -o remount,rw /dev/root /
+ else
+ . /bin/firstboot
+ is_dirty
+ [ $? != 0 ] && {
+ echo "switching to jffs2"
+ mount /dev/mtdblock/4 /jffs -t jffs2
+ fopivot /jffs /rom
+ } || {
+ echo "jffs2 not ready yet; using ramdisk"
+ ramoverlay
+ }
+ fi
+fi
+
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts 2>&-
+grep sysfs /proc/filesystems >/dev/null && mount -t sysfs none /sys 2>&-
diff --git a/target/linux/brcm-2.4/src/jffs2root.c b/target/linux/brcm-2.4/src/jffs2root.c
new file mode 100644
index 0000000000..3562eb4624
--- /dev/null
+++ b/target/linux/brcm-2.4/src/jffs2root.c
@@ -0,0 +1,133 @@
+/*
+ * jffs2root.c
+ *
+ * Copyright (C) 2005 Mike Baker
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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 02111-1307, USA.
+ *
+ * $Id$
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+#include "mtd.h"
+
+#define FILENAME "/dev/mtdblock/1"
+
+struct trx_header {
+ unsigned magic; /* "HDR0" */
+ unsigned len; /* Length of file including header */
+ unsigned crc32; /* 32-bit CRC from flag_version to end of file */
+ unsigned flag_version; /* 0:15 flags, 16:31 version */
+ unsigned offsets[3]; /* Offsets of partitions from start of header */
+};
+
+unsigned long *crc32;
+
+void init_crc32()
+{
+ unsigned long crc;
+ unsigned long poly = 0xEDB88320L;
+ int n, bit;
+ if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) {
+ perror("malloc");
+ exit(1);
+ }
+ for (n = 0; n < 256; n++) {
+ crc = (unsigned long) n;
+ for (bit = 0; bit < 8; bit++)
+ crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
+ crc32[n] = crc;
+ }
+}
+
+unsigned int crc32buf(char *buf, size_t len)
+{
+ unsigned int crc = 0xFFFFFFFF;
+ for (; len; len--, buf++)
+ crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+ return crc;
+}
+
+int main(int argc, char **argv)
+{
+ int fd;
+ struct mtd_info_user mtdInfo;
+ unsigned long len;
+ struct trx_header *ptr;
+ char *buf;
+
+ if (((fd = open(FILENAME, O_RDWR)) < 0)
+ || ((len = lseek(fd, 0, SEEK_END)) < 0)
+ || ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
+ || (ptr->magic != 0x30524448)) {
+ printf("Error reading trx info\n");
+ exit(-1);
+ }
+ close (fd);
+
+ if (((fd = open("/dev/mtd/1", O_RDWR)) < 0)
+ || (ioctl(fd, MEMGETINFO, &mtdInfo))) {
+ fprintf(stderr, "Could not get MTD device info from %s\n", FILENAME);
+ close(fd);
+ exit(1);
+ }
+ close(fd);
+
+ if (argc > 1 && !strcmp(argv[1],"--move")) {
+ if (ptr->offsets[2] >= ptr->len) {
+ printf("Partition already moved outside trx\n");
+ } else {
+ init_crc32();
+ ptr->offsets[2] += (mtdInfo.erasesize - 1);
+ ptr->offsets[2] &= ~(mtdInfo.erasesize - 1);
+ ptr->len = ptr->offsets[2];
+ ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
+ msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
+ printf("Partition moved; please reboot\n");
+ }
+ } else if (argc > 1 && !strcmp(argv[1], "--clean")) {
+ buf = (char *) ptr;
+ if (buf[ptr->offsets[1] - 1] == 0) {
+ init_crc32();
+ buf[ptr->offsets[1] - 1] = 1;
+ ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
+ msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
+ printf("Partition marked as clean\n");
+ }
+ } else {
+ int x;
+ printf(" erase: 0x%08x\n",mtdInfo.erasesize);
+ printf("=== trx ===\n");
+ printf("mapped: 0x%08x\n", (unsigned)ptr);
+ printf(" magic: 0x%08x\n", ptr->magic);
+ printf(" len: 0x%08x\n", ptr->len);
+ printf(" crc: 0x%08x\n", ptr->crc32);
+ for (x = 0; x < 3; x++)
+ printf(" offset[%d]: 0x%08x\n", x, ptr->offsets[x]);
+ }
+
+ munmap((void *) ptr, len);
+ return 0;
+}
diff --git a/target/linux/brcm-2.4/src/mtd.h b/target/linux/brcm-2.4/src/mtd.h
new file mode 100644
index 0000000000..8b83afd575
--- /dev/null
+++ b/target/linux/brcm-2.4/src/mtd.h
@@ -0,0 +1,304 @@
+
+/* $Id: mtd.h,v 1.38 2003/01/12 16:30:19 spse Exp $ */
+
+#ifndef __MTD_MTD_H__
+#define __MTD_MTD_H__
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/mtd/compatmac.h>
+#include <linux/notifier.h>
+#include <linux/module.h>
+#include <linux/uio.h>
+
+#endif /* __KERNEL__ */
+
+struct erase_info_user {
+ u_int32_t start;
+ u_int32_t length;
+};
+
+struct mtd_oob_buf {
+ u_int32_t start;
+ u_int32_t length;
+ unsigned char *ptr;
+};
+
+
+#define MTD_CHAR_MAJOR 90
+#define MTD_BLOCK_MAJOR 31
+#define MAX_MTD_DEVICES 16
+
+
+
+#define MTD_ABSENT 0
+#define MTD_RAM 1
+#define MTD_ROM 2
+#define MTD_NORFLASH 3
+#define MTD_NANDFLASH 4
+#define MTD_PEROM 5
+#define MTD_OTHER 14
+#define MTD_UNKNOWN 15
+
+
+
+#define MTD_CLEAR_BITS 1 // Bits can be cleared (flash)
+#define MTD_SET_BITS 2 // Bits can be set
+#define MTD_ERASEABLE 4 // Has an erase function
+#define MTD_WRITEB_WRITEABLE 8 // Direct IO is possible
+#define MTD_VOLATILE 16 // Set for RAMs
+#define MTD_XIP 32 // eXecute-In-Place possible
+#define MTD_OOB 64 // Out-of-band data (NAND flash)
+#define MTD_ECC 128 // Device capable of automatic ECC
+
+// Some common devices / combinations of capabilities
+#define MTD_CAP_ROM 0
+#define MTD_CAP_RAM (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
+#define MTD_CAP_NORFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE)
+#define MTD_CAP_NANDFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
+#define MTD_WRITEABLE (MTD_CLEAR_BITS|MTD_SET_BITS)
+
+
+// Types of automatic ECC/Checksum available
+#define MTD_ECC_NONE 0 // No automatic ECC available
+#define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip
+#define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices
+
+struct mtd_info_user {
+ u_char type;
+ u_int32_t flags;
+ u_int32_t size; // Total size of the MTD
+ u_int32_t erasesize;
+ u_int32_t oobblock; // Size of OOB blocks (e.g. 512)
+ u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
+ u_int32_t ecctype;
+ u_int32_t eccsize;
+};
+
+struct region_info_user {
+ u_int32_t offset; /* At which this region starts,
+ * from the beginning of the MTD */
+ u_int32_t erasesize; /* For this region */
+ u_int32_t numblocks; /* Number of blocks in this region */
+ u_int32_t regionindex;
+};
+
+#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
+#define MEMGETREGIONCOUNT _IOR('M', 7, int)
+#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
+#define MEMREADDATA _IOWR('M', 9, struct mtd_oob_buf)
+#define MEMWRITEDATA _IOWR('M', 10, struct mtd_oob_buf)
+
+#ifndef __KERNEL__
+
+typedef struct mtd_info_user mtd_info_t;
+typedef struct erase_info_user erase_info_t;
+typedef struct region_info_user region_info_t;
+
+ /* User-space ioctl definitions */
+
+
+#else /* __KERNEL__ */
+
+
+#define MTD_ERASE_PENDING 0x01
+#define MTD_ERASING 0x02
+#define MTD_ERASE_SUSPEND 0x04
+#define MTD_ERASE_DONE 0x08
+#define MTD_ERASE_FAILED 0x10
+
+struct erase_info {
+ struct mtd_info *mtd;
+ u_int32_t addr;
+ u_int32_t len;
+ u_long time;
+ u_long retries;
+ u_int dev;
+ u_int cell;
+ void (*callback) (struct erase_info *self);
+ u_long priv;
+ u_char state;
+ struct erase_info *next;
+};
+
+struct mtd_erase_region_info {
+ u_int32_t offset; /* At which this region starts, from the beginning of the MTD */
+ u_int32_t erasesize; /* For this region */
+ u_int32_t numblocks; /* Number of blocks of erasesize in this region */
+};
+
+struct mtd_info {
+ u_char type;
+ u_int32_t flags;
+ u_int32_t size; // Total size of the MTD
+
+ /* "Major" erase size for the device. Naïve users may take this
+ * to be the only erase size available, or may use the more detailed
+ * information below if they desire
+ */
+ u_int32_t erasesize;
+
+ u_int32_t oobblock; // Size of OOB blocks (e.g. 512)
+ u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
+ u_int32_t ecctype;
+ u_int32_t eccsize;
+
+ // Kernel-only stuff starts here.
+ char *name;
+ int index;
+
+ /* Data for variable erase regions. If numeraseregions is zero,
+ * it means that the whole device has erasesize as given above.
+ */
+ int numeraseregions;
+ struct mtd_erase_region_info *eraseregions;
+
+ /* This really shouldn't be here. It can go away in 2.5 */
+ u_int32_t bank_size;
+
+ struct module *module;
+ int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
+
+ /* This stuff for eXecute-In-Place */
+ int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
+
+ /* We probably shouldn't allow XIP if the unpoint isn't a NULL */
+ void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
+
+
+ int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+ int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+ int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel);
+ int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, int oobsel);
+
+ int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+ int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+ /*
+ * Methods to access the protection register area, present in some
+ * flash devices. The user data is one time programmable but the
+ * factory data is read only.
+ */
+ int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+ int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+ /* This function is not yet implemented */
+ int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+ /* iovec-based read/write methods. We need these especially for NAND flash,
+ with its limited number of write cycles per erase.
+ NB: The 'count' parameter is the number of _vectors_, each of
+ which contains an (ofs, len) tuple.
+ */
+ int (*readv) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from, size_t *retlen);
+ int (*readv_ecc) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from,
+ size_t *retlen, u_char *eccbuf, int oobsel);
+ int (*writev) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen);
+ int (*writev_ecc) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to,
+ size_t *retlen, u_char *eccbuf, int oobsel);
+
+ /* Sync */
+ void (*sync) (struct mtd_info *mtd);
+
+ /* Chip-supported device locking */
+ int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+ int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+
+ /* Power Management functions */
+ int (*suspend) (struct mtd_info *mtd);
+ void (*resume) (struct mtd_info *mtd);
+
+ struct notifier_block reboot_notifier;
+
+ void *priv;
+};
+
+
+ /* Kernel-side ioctl definitions */
+
+extern int add_mtd_device(struct mtd_info *mtd);
+extern int del_mtd_device (struct mtd_info *mtd);
+
+extern struct mtd_info *__get_mtd_device(struct mtd_info *mtd, int num);
+
+static inline struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num)
+{
+ struct mtd_info *ret;
+
+ ret = __get_mtd_device(mtd, num);
+
+ if (ret && ret->module && !try_inc_mod_count(ret->module))
+ return NULL;
+
+ return ret;
+}
+
+static inline void put_mtd_device(struct mtd_info *mtd)
+{
+ if (mtd->module)
+ __MOD_DEC_USE_COUNT(mtd->module);
+}
+
+
+struct mtd_notifier {
+ void (*add)(struct mtd_info *mtd);
+ void (*remove)(struct mtd_info *mtd);
+ struct mtd_notifier *next;
+};
+
+
+extern void register_mtd_user (struct mtd_notifier *new);
+extern int unregister_mtd_user (struct mtd_notifier *old);
+
+int default_mtd_writev(struct mtd_info *mtd, const struct iovec *vecs,
+ unsigned long count, loff_t to, size_t *retlen);
+
+int default_mtd_readv(struct mtd_info *mtd, struct iovec *vecs,
+ unsigned long count, loff_t from, size_t *retlen);
+
+#ifndef MTDC
+#define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
+#define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
+#define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
+#define MTD_READ(mtd, args...) (*(mtd->read))(mtd, args)
+#define MTD_WRITE(mtd, args...) (*(mtd->write))(mtd, args)
+#define MTD_READV(mtd, args...) (*(mtd->readv))(mtd, args)
+#define MTD_WRITEV(mtd, args...) (*(mtd->writev))(mtd, args)
+#define MTD_READECC(mtd, args...) (*(mtd->read_ecc))(mtd, args)
+#define MTD_WRITEECC(mtd, args...) (*(mtd->write_ecc))(mtd, args)
+#define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
+#define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
+#define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd); } while (0)
+#endif /* MTDC */
+
+/*
+ * Debugging macro and defines
+ */
+#define MTD_DEBUG_LEVEL0 (0) /* Quiet */
+#define MTD_DEBUG_LEVEL1 (1) /* Audible */
+#define MTD_DEBUG_LEVEL2 (2) /* Loud */
+#define MTD_DEBUG_LEVEL3 (3) /* Noisy */
+
+#ifdef CONFIG_MTD_DEBUG
+#define DEBUG(n, args...) \
+ do { \
+ if (n <= CONFIG_MTD_DEBUG_VERBOSE) \
+ printk(KERN_INFO args); \
+ } while(0)
+#else /* CONFIG_MTD_DEBUG */
+#define DEBUG(n, args...)
+#endif /* CONFIG_MTD_DEBUG */
+
+#endif /* __KERNEL__ */
+
+#endif /* __MTD_MTD_H__ */