Blog moved to https://anarsoul.github.io

The blog has moved to https://anarsoul.github.io

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One step closer...

One more annoying issue was fixed tonight :) No more LCD flickering after resume! :) Problem was in timer1. rx1950 uses it somehow for clocking LCD (Don't know how :)). After booting from windows, linux reuse windows' timer settings, but these settings were lost after suspend/resume. Solution is simple: reconfigure timer1 in rx1950_lcd_power (some bits of TCON, TCFG0, TCFG1, regs TCNTB1, TCMPB1). Patch will be available as soon as embedded.net.ru get up :) One more hint: To get rid of 270 degrees screen rotation add following lines at the exports section  of /etc/init.d/opie: export QWS_DISPLAY=LinuxFb:Transformed export QWS_SIZE=240x320
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Access point with Raspberry Pi and rtl8192cu dongle

On Thursday ethernet ports (WAN and LAN1-4) in my Asus WL500GPv1 router have completely died, so I needed a replacement. Hopefully, recently I've got Raspberry Pi, so I decided to use it as a router. I've got TP-LINK TL-WN821NC USB stick from local store which is based on RTL8192CU chipset. Unfortunately, its driver doesn't work with vanilla hostapd, but requires patched ancient version of hostapd from Realtek . I'm using Archlinux on my rpi and I've found manual how to setup AP using this USB stick  here , but I don't want to overwrite binaries from repository packages, since it's not a sane way, and it can (and will) be broken by hostapd update. So I prepared a package, here's source package (just unpack it and build with makepkg directly on rpi), and here's binary package for armv6h (you can install it with pacman -U). I can't put PKGBUILD in AUR, since there's no stable hosting for Realtek's hostapd. If anyone is willing to host...
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qemu with Z2 support

I spent some days getting qemu to emulate some Z2 hardware, and got some results :) Almost all hw is emulated, it lacks only voltage regulator and WiFi, but it's not easy to implement Marvell's WiFi chip, because there's no datasheet, and anyway it makes no sense. Also screen rotation is not supported (yet). Stock bootloader - blob - (with slight modification) and stock kernel works. Blob puts Z2 into deepsleep on reset, so I hacked it not to do this. How to compile qemu: git clone git://github.com/anarsoul/qemu-z2.git cd qemu-z2 ./configure --audio-drv-list=alsa --target-list=arm-softmmu make -j4 arm-softmmu/qemu-system-arm binary is what you need. So, how to hack blob: put your blob image (first 64kb of NOR) somewhere convert it to hex representation with xxd: xxd mtdblock1.bin >mtdblock1.hex apply patch onto mtdblock1.hex convert hex back to bin: mv mtdblock1.bin mtdblock1.bin.bak; xxd -r mtdblock1.hex >mtdblock1.bin I don't pu...
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