# This feature is specific to Compal and Pirelli targets.  When we put our own
# FreeCalypso firmware on these phones, we are using them in a way that is very
# different from how they were intended to be used by their respective
# manufacturers.  Hence the term "aftermarket".  Although the original firmwares
# of these phones are TI-based and feature TI-based flash file systems, neither
# Pirelli's FFS nor that of any Compal variant is suitable for direct reuse by
# FreeCalypso GSM fw.
#
# Therefore, if we are putting our own fw on one of these aftermarket devices
# and we need to use a real non-volatile FFS in flash, rather than fake FFS
# in RAM, we need to define our own aftermarket FFS, and we can put it in any
# part of the flash that suits our needs, without much regard for Compal's or
# Foxconn's originally intended flash layout - what we are doing with their
# hardware goes totally against their intentions anyway.
#
# Because our aftermarket FFS configuration inherently involves our own choice
# of flash location for this FFS, the present feature aftermarket-ffs takes two
# required arguments: the starting flash sector number and the total number of
# flash sectors to be used for the aftermarket FFS.  It is the user's
# responsibility to ensure that these numbers are sensible.

check_target_feature "$1"

if [ $# != 3 ]
then
	echo "feature aftermarket-ffs: two arguments required" 1>&2
	exit 1
fi

FFS_IN_RAM=0
CONFIG_AFTERMARKET_FFS=1
CONFIG_AFTERMARKET_FFS_START=$2
CONFIG_AFTERMARKET_FFS_NBLOCKS=$3
CONFIG_FLASH_WRITE=1
export_to_c	CONFIG_AFTERMARKET_FFS
export_to_c	CONFIG_AFTERMARKET_FFS_START
export_to_c	CONFIG_AFTERMARKET_FFS_NBLOCKS
export_to_c	CONFIG_FLASH_WRITE