#@TYPE: Distribution
#@NAME: UcSlugC
#@DESCRIPTION: UcSlugC Linux Distribution for the NSLU2

#----------------------------------------------------------------------------------
# STANDARD UcSlugC DEFINITIONS
#----------------------------------------------------------------------------------
DISTRO_NAME = "UcSlugC"
DISTRO_VERSION = "1.1-beta"
DISTRO_FEED = "unstable"
DISTRO_TYPE ?= "beta"

TARGET_FPU = "soft"
TARGET_OS = "linux-uclibc"

# Select thumb-interwork and (TBD) thumb
ARM_INTERWORK = ":thumb-interwork"
#ARM_INSTRUCTION_SET = ":thumb"

USE_NLS ?= "no"
USE_NLS_glib-2.0 = "yes"

INHERIT += " package_ipk debian"

# The OVERRIDES are modified here so that 'openslug' overrides are picked up if
# present (ucslugc overrides take precedence).
NSLU2_BASE_DISTRO = ":openslug"

# We are building packages which are armvteb (big endian) for arm or thumbv5tb for
# thumb instructions.  The PACKAGE_ARCH should reflect this because generated code
# requires that instruction set support.
PACKAGE_ARCH = "${NSLU2_PACKAGE_ARCH}"

# NOTE: to build new packages set UCSLUGC_EXTRA_BBFILES to the full path name to
# the .bb files for the packages to build - see ucslugc-packages.conf in this
# directory
UCSLUGC_EXTRA_BBFILES ?= ""

# pull in the frozen list of bbfiles - this sets BBFILES and this will override any
# setting in local.conf
include conf/distro/freeze.conf

#----------------------------------------------------------------------------------
# FEEDS
#  The following lines define where on the internet UcSlugC looks for packages
#  when downloading new packages or updating existing packages.  Additional feeds
#  (such as a local feed) can be defined in local.conf
#----------------------------------------------------------------------------------
# Add to the user's feeds from local.conf (there may be none)
#
#NOTE: at present there is no released feed for ucslugc, therefore this feed
# is set to the 'unstable' version.  In released images DISTRO_FEED will typically
# be DISTRO_VERSION.
FEED_URIS_append += "cross##http://ipkg.nslu2-linux.org/feeds/ucslugc/cross/${DISTRO_FEED}"
FEED_URIS_append += "native##http://ipkg.nslu2-linux.org/feeds/ucslugc/native/${DISTRO_FEED}"

#
# Uncomment the following to get the unstable feeds in a released version.
#FEED_URIS_append += "unstable_cross##http://ipkg.nslu2-linux.org/feeds/ucslugc/cross/unstable"
#FEED_URIS_append += "unstable_native##http://ipkg.nslu2-linux.org/feeds/ucslugc/native/unstable"

#----------------------------------------------------------------------------------
# FIRMWARE CONFIGURATION
#----------------------------------------------------------------------------------
# IMAGE BUILD OPTIONS
# -------------------
IMAGE_FSTYPES = "jffs2"

OPENSLUG_DEVICE_TABLE = "${@bb.which(bb.data.getVar('BBPATH', d, 1), 'files/device_table-openslug.txt')}"
EXTRA_IMAGECMD_jffs2 = "--pad --big-endian --eraseblock=0x20000 -D ${OPENSLUG_DEVICE_TABLE}"

# CMDLINE* macros define the kernel command line.  CMDLINE_DEBUG is provided
# to enable/disable debugging in the distro.  Here noirqdebug is used to
# remove the messages about unhandled interrupts - people debugging interrupt
# issues in the kernel need to cancel this (set CMDLINE_DEBUG empty in local.conf)
CMDLINE_DEBUG = "noirqdebug"

# IMAGE_PREPROCESS_COMMAND is run before making the image.  In UcSlugC the
# kernel image is removed from the root file system to recover the space used -
# UcSlugC is assumed to boot from a separate kernel image in flash (not in the
# root file system), if this is not the case the following must not be done!
IMAGE_PREPROCESS_COMMAND = "rm ${IMAGE_ROOTFS}/boot/zImage*;"

# Building a full image.  If you add the following extra commands will be
# appended to the openslug-image build by classes/nslu2-jffs2-image.bbclass
# (note that you can, instead, simply add 'inherit nslu2-jffs2-image' to
# openslug-image.bb).  If you do this you will need to find a source for the
# LinkSys software to be placed in the full image - 'RedBoot' (the boot loader),
# 'Trailer' (just a bunch of bytes to flag the image as valid) and 'SysConf'
# (actually just a block of unset data - you could modify this to pre-configure
# the SysConf partition of the image).  If you own an NSLU2 then this data is
# already in the flash of the NSLU2 and you can download it (including new
# versions) from the LinkSys web site - the bbclass will output information
# about where to put the downloaded data.
#
#NOTE: you do not actually need the boot loader in normal use because it is
# *not* overwritten by a standard upslug upgrade, so you can make an image with
# just non-LinkSys software which can be flashed into the NSLU2.

#INHERIT += " nslu2-jffs2-image"

# EXTRA PACKAGES
# --------------
# UcSlugC builds an openslug-image with no extra packages - to add packages to the
# firmware copy this file (to make a new 'distro' configuration file) and change
# the definition below to include the requirements.
# NOTE: as built this system will *not* be able to boot off anything other than
# the flash file system ('turnup' will not work).  You need to add the filesystem
# modules for your chosen root file system (and any others which will be used).
# See openslug.conf for a more full-featured system!
UCLIBC_EXTRA_RDEPENDS ?= ""
UCLIBC_EXTRA_DEPENDS ?= ""
#UCLIBC_EXTRA_BBFILES above may also need to be set

OPENSLUG_EXTRA_INSTALL = "${UCLIBC_EXTRA_RDEPENDS}"
OPENSLUG_EXTRA_DEPENDS = "${UCLIBC_EXTRA_DEPENDS}"

#----------------------------------------------------------------------------------
# PACKAGE VERSION CONTROL
#----------------------------------------------------------------------------------
# Select the correct versions of the compiler tools (note that there
# is also some selection in machine/nslu2.conf)
PREFERRED_PROVIDERS += " virtual/${TARGET_PREFIX}gcc-initial:gcc-cross-initial"
PREFERRED_PROVIDERS += " virtual/${TARGET_PREFIX}gcc:gcc-cross"
PREFERRED_PROVIDERS += " virtual/${TARGET_PREFIX}g++:gcc-cross"

# Select the correct versions of the kernel and modules
PREFERRED_PROVIDER_virtual/kernel ?= "openslug-kernel"
PREFERRED_PROVIDERS += "virtual/${TARGET_PREFIX}depmod:module-init-tools-cross"
PREFERRED_VERSION_openslug-kernel ?= "2.6.12.2"

PREFERRED_VERSION_ixp4xx-csr ?= "1.4"
PREFERRED_VERSION_ixp425-eth ?= "1.1"

PREFERRED_VERSION_nslu2-linksys-firmware ?= "2.3r29"