One month before I started to work on porting existing omap850 audio driver to latest kernels ASoC driver.
Currently I have no very much time but I just prepared templates for ASoC audio driver.

Currently when you compile ASoC driver and boot during on WM playing music you can also play music in linux with this template
using aplay, mplayer or whatever.

Current driver consist from more parts. I make a decision to split EAC code to codec dai and cpu dai.
Maybee in future it will be combined again but will see.

You can clone from (using git or http protocol ):

git://github.com/nandra/linux-omap.git

http://github.com/nandra/linux-omap.git

branch is eac_audio.

All contributors and reviewers are WELCOME

Marek

You can find sources at: git://github.com/nandra/omap_850_kernel.git

Work is still not finnished because there is still issue with DMA interrupt. I’m waiting for 2 interrupts but none of them is comming.  That’s the reason why just first 8k buffer is played. Then it stops playing. I’m trying to figure out what’s wrong but it will take some time .

Marek

kernel + haret : open-moko-kernel-wizard.tar.bz2
rootfs : openmoko-devel-image-glibc.rootfs.tar.bz2

Your SD card should have 2 partitions. First is FAT and second must be ext2 partition.

1. extract kernel + haret to FAT partition of SD card

2. extract rootfs to ext2 partition

3. run haret.exe and wait some time (you should see splash screen)

4. enjoy

Marek

Proof:

1. copy rootfs somewhere to filesystem e.g. /home/user/rootfs

2. export directory in /etc/exports
should look like:
/home/user/rootfs   192.168.2.0/3(rw,sync,no_root_squash,no_subtree_check)

3. restart nfs-server: /etc/init.t/nfsserver restart

4. Server will be connected to target via cdc-ether interface. To avoid problems we need to add
static ip configuration for usb0 interface. I’m running on opensuse for different distros check
manual.
Create new file in : /etc/sysconfig/network/ifcfg-usb0
# USB configuration for HTC phones
BOOTPROTO=’static’
IPADDR=’192.168.2.16′
NETMASK=’255.255.255.0′
NAME=’usb0′
STARTMODE=’hotplug’
USERCONTROL=’no’
BROADCAST=”
ETHTOOL_OPTIONS=”
MTU=”
NETWORK=”
REMOTE_IPADDR=”

5. Add correct kernel command parameters.
set CMDLINE “root=/dev/nfs ip=192.168.2.15 nfsroot=192.168.2.16:/home/user/rootfs ,nfsvers=3″

5. Run Haret and enjoy. That’s all

Note:

I face that problems with Kernel panic – attemp to kill init was caused by non existing /dev/console node. To create new one run sudo mknod <path to rootfs dev>/console c 5 1

Marek

1. unzip
2. copy to SD card
3. run Haret.exe

Enjoy

You can also connect via telnet to ip:192.168.2.15

For download is also available GPE2 rotfs ( GPE2) and precompiled kernel

Marek

Next I load image to SD card on phone and with using Haret (http://www.handhelds.org/moin/moin.cgi/HaRET) try to load kernel from winCE. After message jumping to kernel I see only nice variety of colors on display but not recognizable text . Problem could be because of display resolution. Next try will be to adapt existing fb driver for Oxygen TFT display. Trying to search for some specs wasn’t successfull so I try to open device and check producer name or any other clue. So thats the progress. You can find early more infos in new project.

Marek