Cellular Modem Information » Qualcomm Linux Modems by Quectel & Co

h1. Qualcomm OE MSM

Qualcomm has released (parts of?) an OE/poky port for their MDM9615 devices.  We are trying to find a building configuration as of now.

# install 64bit ubuntu precise chroot using debootstrap

<pre>debootstrap --variant=buildd --arch amd64 precise /space/oe-msm-chroot-64 http://mirror.netcologne.de/ubuntu/</pre>

# install the following packages into the chroot

<pre>apt-get install vim git build-essential diffstat texi2html texinfo subversion gawk chrpath wget</pre>

# add 'oe' user

<pre>useradd -m oe</pre>

# mount the following directories into the chroot

<pre>

mount --bind /dev/shm ${CHROOT}/dev/shm

mount --bind /proc ${CHROOT}/proc

mount --bind /sys ${CHROOT}/sys

mount --bind /dev/shm/ ${CHROOT}/dev/shm

</pre>

# enter the chroot as 'oe' user and use 'repo' to check out a specific release

<pre>

repo init -u git://codeaurora.org/quic/le/manifest.git -b release -m LNX.LE.2.1.1-59003-9x15.xml --repo-url=git://codeaurora.org/tools/repo.git

repo sync

</pre>

# apply @disable-alsa-loc-hostap.diff@ to remove dependencies to hostap, loc-api and alsa-intf

# don't use the @build9615@ command, but:

<pre>

cd oe-core

. ./build/conf/set_bb_env.sh

bitbake -k 9615-cdp-image

</pre>

h2. build failures

currently, it will fail the lk and busybox builds:

h3. lk fail

<pre>

NOTE: package lk-git-r3: task do_install: Started

ERROR: Function failed: do_install (see /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/temp/log.do_install.16752 for further information)

ERROR: Logfile of failure stored in: /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/temp/log.do_install.16752

Log data follows:

| ERROR: Function failed: do_install (see /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/temp/log.do_install.16752 for further information)

| + cd /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/lk

| + do_install

| + install -d /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/image/boot

| + install build-mdm9615/appsboot.{mbn,raw} /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/lk-git-r3/image/boot

| install: cannot stat `build-mdm9615/appsboot.{mbn,raw}': No such file or directory

NOTE: package lk-git-r3: task do_install: Failed

</pre>

despite the build-mdm9615/appsboot.mbn and .raw files actually

existing, but maybe in a different directory?

h3. busybox fail

<pre>

| /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/busybox-1.18.5-r44.0/temp/run.do_configure.14962: 65: /home/oe/oe-msm-LE2/oe-core/build/tmp-eglibc/work/armv7a-vfp-neon-oe-linux-gnueabi/busybox-1.18.5-r44.0/temp/run.do_configure.14962:

Bad substitution

NOTE: package busybox-1.18.5-r44.0: task do_configure: Failed

</pre>

this is really odd, as the line 65 of the given file reads

<pre>

export EXTRA_CFLAGS="${CFLAGS/Os/O2}"

</pre>

with forward-slashes in the CFLAGS ?!?

h2. missing recipes / packages

there are some recipes missing, hence we commented them out above.

h3. acdbloader

alsa-intf requires this package, but no recipe is provided.

https://github.com/meta-swi/meta-swi-extras/blob/master/meta-swi-src/recipes/acdbloader/acdbloader_git.bb

h3. loc-api

seems to be libloc_api,

https://android.googlesource.com/platform/hardware/qcom/gps/+/master/loc_api/

https://github.com/meta-swi/meta-swi-extras/blob/master/meta-swi-src/recipes/loc-api/loc-api_git.bb

h3. qmi-framework

seems proprietary, thoug an older version seems leakead at

http://v2.pikacode.com/jsr-d10/android_vendor_qcom_proprietary/src/msm8226-kk/qmi-framework

https://github.com/meta-swi/meta-swi-extras/blob/master/meta-swi-src/recipes/qmi-framework/qmi-framework_git.bb