On Fri, Aug 29, 2008 at 9:48 AM, Florian Hackenberger <[EMAIL PROTECTED]> wrote: > Hi! > > Thanks to a posting from "Freerunner_User" on the hardware mailing list > [1], I got hold of the hidden AT commands concerning the AEC and noise > reduction support of the TI Calypso. I quickly tried these commands and > it solves the echo problem for me. I injected > AT%N0187 > using minicom and gsm0710muxd on Om2008.08 while qpe was running. On the > next call the echo was gone. I have not modified my alsa .state files > at all and I'm running the official OM testing ASU branch. > > I'll cook up a patch to Qtopia-X11, but for the impatient here are some > instructions for installing gsm0710muxd on Om2008.08 and injecting the > command: > > Instructions are from > http://wiki.openmoko.org/wiki/GPRS > http://freeyourphone.de/portal_v1/viewtopic.php?f=21&t=295 > > wget > http://www.angstrom-distribution.org/feeds/2008/ipk/glibc/armv4t/base/gsm0710muxd_0.9.1+gitr6fecc78198dd821bbe29efd096bd8fecd855179d-r0_armv4t.ipk > wget > http://www.angstrom-distribution.org/feeds/2008/ipk/glibc/armv4t/base/libdbus-1-3_1.2.1-r3_armv4t.ipk > wget > http://www.angstrom-distribution.org/feeds/2008/ipk/glibc/armv4t/base/libglib-2.0-0_2.16.4-r0_armv4t.ipk > wget > http://www.angstrom-distribution.org/feeds/2008/ipk/glibc/armv4t/base/libgcc1_4.2.4-r3_armv4t.ipk > > $ opkg install libdbus-1-3_1.2.1-r3_armv4t.ipk > Multiple packages (libdbus-1-3 and libdbus-1-3) providing same name > marked HOLD or PREFER. Using latest. > Multiple packages (libdbus-1-3 and libdbus-1-3) providing same name > marked HOLD or PREFER. Using latest. > Upgrading libdbus-1-3 on root from 1.1.20-r2 to 1.2.1-r3... > Configuring libdbus-1-3 > > $ opkg install libgcc1_4.2.4-r3_armv4t.ipk > Multiple packages (libgcc1 and libgcc1) providing same name marked HOLD > or PREFER. Using latest. > Multiple packages (libgcc1 and libgcc1) providing same name marked HOLD > or PREFER. Using latest. > Upgrading libgcc1 on root from 4.1.2-r15 to 4.2.4-r3... > Configuring libgcc1 > > $ opkg install libglib-2.0-0_2.16.4-r0_armv4t.ipk > Multiple packages (libglib-2.0-0 and libglib-2.0-0) providing same name > marked HOLD or PREFER. Using latest. > Multiple packages (libglib-2.0-0 and libglib-2.0-0) providing same name > marked HOLD or PREFER. Using latest. > Upgrading libglib-2.0-0 on root from 2.16.1-r4 to 2.16.4-r0... > Configuring libglib-2.0-0 > > $ opkg install > gsm0710muxd_0.9.1\+gitr6fecc78198dd821bbe29efd096bd8fecd855179d-r0_armv4t.ipk > Multiple packages (gsm0710muxd and gsm0710muxd) providing same name > marked HOLD or PREFER. Using latest. > Installing gsm0710muxd > (0.9.1+gitr6fecc78198dd821bbe29efd096bd8fecd855179d-r0) to root... > Configuring gsm0710muxd > > $ ln -s /etc/init.d/gsm0710muxd /etc/rc5.d/S34gsm0710muxd > > Added the following lines to /etc/X11/Xsession.d/89qtopia > > identvar=$(date +%s) > ptsvar=$(dbus-send --system --print-reply --type=method_call > --dest=org.pyneo.muxer /org/pyneo/Muxer > org.freesmartphone.GSM.MUX.AllocChannel string:$identvar | grep > string | awk -F '"' '{ print $2 }') > export QTOPIA_PHONE_DEVICE=$ptsvar > > rebooted > > You should install minicom before requesting the modem device as muxd > seems to remove the device after a while of inactivity. > > Now you can request a new device for the modem using: > identvar=$(date +%s) > dbus-send --system --print-reply --type=method_call --dest=org.pyneo.muxer > /org/pyneo/Muxer > org.freesmartphone.GSM.MUX.AllocChannel string:$identvar | grep > string | awk -F '"' '{ print $2 }' > > It should print something like '/dev/pts/2'. Now use 'minicom -s' and > set the device under 'serial device' to the value printed by dbus-send. > Wait for a response to the AT initiation sequence and then type in: > AT%N0187 > > The modem should respond with a message that AEC and Noise reduction is > now on. > > Call the Neo from another phone where you heard an echo before and see > if the echo is gone. > > Cheers, > Florian > > [1] > http://n2.nabble.com/calypso-hardware-echo-suppression--tp784752p786187.html > -- > DI Florian Hackenberger > [EMAIL PROTECTED] > www.hackenberger.at > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community >
Nice work! I assume a comparable sollution for 2007.2 will also be possible. _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
