BTRFS file system for MAIN and rootfs partition (#65)

* BTRFS file system for MAIN and rootfs partition

board/miyoo/rootfs/etc/inittab

@@ -20,7 +20,7 @@
 ::sysinit:/bin/mkdir -p /dev/shm
 ::sysinit:/bin/mount -a
 ::sysinit:/bin/hostname -F /etc/hostname
-::sysinit:/bin/mount /dev/mmcblk0p4 /mnt -t vfat -o rw,sync,utf8
+::sysinit:/bin/mount /dev/mmcblk0p4 /mnt -o discard=async,noatime,nodiratime,exec
 ::sysinit:/bin/mount /dev/mmcblk0p1 /boot -t vfat -o ro,exec,sync,utf8
 ::sysinit:/sbin/mkswap /dev/mmcblk0p3
 ::sysinit:/sbin/swapon /dev/mmcblk0p3

board/miyoo/rootfs/etc/main

@@ -26,9 +26,9 @@ fi
 # load kernel modules
 
 # load usb gadget
-mount -t configfs none /sys/kernel/config >> "${LOGS}" 2>&1
-gadget-ms /dev/mmcblk0p1 /dev/mmcblk0p4 >> "${LOGS}" 2>&1
-
+modprobe g_ffs idVendor=0x1fc9 idProduct=0x0146 iSerialNumber="01234567" iProduct="Miyoo CFW 2.0" iManufacturer="Miyoo Handheld" functions=mtp  >> "${LOGS}" 2>&1
+mkdir /dev/ffs-mtp && mount -t functionfs mtp /dev/ffs-mtp  >> "${LOGS}" 2>&1
+umtprd >> "${LOGS}" 2>&1 &
 
 # Load the expected one screen driver from here with modprobe 
 ## automatically from rootfs/lib/modules/VERSION
@@ -77,19 +77,18 @@ elif test -r "${HOME}/firstboot.completed"; then
 fi
 
 if !(grep -q FAT_CHECK\=\0 "${HOME}/options.cfg"); then
-##Check if fat32 is flagged as "dirty", and if so unmount, repair, remount
-	if dmesg | grep "mmcblk0p4" > /dev/null;  then
-		echo -e "\e[31mUnclean shutdown detected.\e[0m"
-		echo -e "\e[32mChecking FAT32 partition...\e[0m"
-		umount /dev/mmcblk0p4
-		fsck.vfat -y /dev/mmcblk0p4 > /dev/null; 
-		mount /dev/mmcblk0p4 "${HOME}" -t vfat -o rw,sync,utf8
+##Check if FAT16 is flagged as "dirty", and if so unmount, repair, remount
+	if dmesg | grep "mmcblk0p1" > /dev/null;  then
+		echo -e "\e[31mDirty sectors detected.\e[0m"
+		echo -e "\e[32mChecking&Repairing FAT16 BOOT partition...\e[0m"
+		umount /dev/mmcblk0p1
+		fsck.vfat -y /dev/mmcblk0p1 > /dev/null; 
+		mount /dev/mmcblk0p1 "${BOOTDIR}" -t vfat -o ro,exec,sync,utf8
 		echo -e "\e[32mCheck complete.\e[0m"
 	fi
 fi
 
 clear
-
 # try to read what handheld we're on
 if test -r "${BOOTDIR}/console.cfg"; then
 	source "${BOOTDIR}/console.cfg"

board/miyoo/rootfs/etc/umtprd/umtprd.conf

@@ -0,0 +1,88 @@
+#
+# uMTP Responder config file
+# Must be copied to /etc/umtprd/umtprd.conf
+#
+
+# Loop / daemon mode
+# Set to 1 to don't shutdown uMTPrd when the link is disconnected.
+
+loop_on_disconnect 1
+
+#storage command : Create add a storage entry point. Up to 16 entry points supported
+#Syntax : storage "PATH" "NAME"
+
+storage "/"                     "rootfs" "ro"
+storage "/mnt"                  "MAIN" "rw"
+storage "/boot"                     "BOOT" "ro"
+
+#
+# Uncomment the following line if you want to 
+# override the system default umask value for 
+# the uploaded files.
+#
+
+umask 000
+
+# Set the USB manufacturer string
+
+manufacturer "Miyoo CFW 2.0"
+
+# Set the USB Product string
+
+product "Miyoo Handheld"
+
+# Set the USB Serial number string
+
+serial "01234567"
+
+# Set the USB interface string. Should be always "MTP"
+
+interface "MTP"
+
+# Set the USB Vendor ID, Product ID and class
+
+usb_vendor_id  0x1D6B # Linux Foundation
+usb_product_id 0x0100 # PTP Gadget
+usb_class 0x6         # Image
+usb_subclass 0x1      # Still Imaging device
+usb_protocol 0x1      #
+
+# Device version
+
+usb_dev_version 0x3008
+
+# inotify support
+# If you want disable the events support (beta), uncomment the following line :
+
+# no_inotify 0x1
+
+#
+# Internal buffers size
+#
+
+# Internal default usb_max_rd_buffer_size and usb_max_wr_buffer_size value set to 0x10000.
+# Internal default read_buffer_cache_size value set to 0x100000.
+# Uncomment the following lines to reduce the buffers sizes to fix USB issues on iMX6 based systems.
+
+ usb_max_rd_buffer_size 0x8000      # MAX usb read size. Must be a multiple of 512 and be less than read_buffer_cache_size
+ usb_max_wr_buffer_size 0x8000      # MAX usb write size. Must be a multiple of 512.
+# read_buffer_cache_size 0x8000     # Read file cache buffer. Must be a 2^x value.
+
+#
+# USB gadget device driver path
+#
+
+########################################################################
+#
+# -- Generic FunctionFS Mode --
+#
+########################################################################
+
+usb_functionfs_mode 0x1
+
+usb_dev_path   "/dev/ffs-mtp/ep0"
+usb_epin_path  "/dev/ffs-mtp/ep1"
+usb_epout_path "/dev/ffs-mtp/ep2"
+usb_epint_path "/dev/ffs-mtp/ep3"
+
+usb_max_packet_size 0x200