mnemoc changed the topic of #linux-sunxi to: Allwinner/sunxi development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi
<ssvb> libv: we only the code to write some values to the disp (and hdmi) hardware registers to make it use some selected memory area as the framebuffer, but that's the area of your expertise :)
<ssvb> libv: *we only need
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<ssvb> libv: if this gets done, we get boot menu in u-boot (which is great by itself) and also basic graphics support for the mainline kernel to survive until kms driver
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<libv> ssvb: how do we deal with lcd, vga or hdmi, how do we know which is present?
<libv> is the device tree stuff useful at u-boot time already, does one need to build u-boot especially
<libv> vga can be load detected, but i have never tried that on hw that is not known for having vga, so results might vary
<libv> hdmi is a bit more safe
<libv> but then the question becomes, do we do a full edid read and parse, or just use 640x480 (i am not sure whether that is still required)
<libv> as for lcd, you need full timing, full power on/off and backlight support, that's a big mess of code
<libv> ssvb: anyway, that's something for later, right now i need to figure out why hdmi ddc is not doing my biding
<BorgCuba> good night everybody!
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<ssvb> libv: what I would want is some sort of universal display support for sunxi, which can automatically configure itself and do not need any extra information hardcoded in u-boot
<ssvb> libv: is it true that every a10 and a20 tablet has a hdmi connector?
<ssvb> libv: it could work as a poor man's debugging console, so that people at least may see some feedback when trying to boot their device even if they do not have a serial cable :)
<ssvb> libv: assuming that they have a TV or monitor and a spare HDMI cable
<libv> yeah, i understand the need for this, especially given that i was the first to add native display support to coreboot
<libv> and yeah, perhaps hdmi is the no-brainer
<libv> but people will expect more, and that will become difficult
<libv> and i am not sure whether we should do the full ddc/edid there
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<wens> just the minimum should be enough during the boot loader
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<libv> wens: and what is the minimum common denominator?
<wens> libv: not sure, 640x480? 720p?
<ssvb> libv: u-boot has some edid code, at least grep says so
<ssvb> and in principle, we can do the runtime detection of the soc type, use the peripherals which BROM can handle (for example, mmc) and initialize dram with some basic failsafe settings
<ssvb> which means that we very likely can have a universal sd card image, able to boot on any a10/a13/a20 device
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<ssvb> libv: u-boot merge window is open until Saturday August 02 2014
<ssvb> and if I understand their policy correctly, review of the already submitted patches continues even after the merge window and they still can make it into the next release
<wens> interesting
<ssvb> "In the result, the final version of such patches gets submitted after the merge window has been closed"
<ssvb> "It is current practice in U-Boot that such patches are eligible to go into the upcoming release. "
<wens> i guess this works to mitigate problems such as maintainers missing patches or just missing?
<ssvb> I don't know, but the next u-boot version is v2014.10 and it is scheduled to be released in the middle of October
<ssvb> the merge window for this next release is open right now
<ssvb> I guess, there is plenty of time to address all the review comments and prepare the final version of the patch set, submitted during the merge window
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<ssvb> libv: are you in the right mood to maybe try chopping off the extra features from the sunxi kms and converting it into the sunxi u-boot video driver?
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<ssvb> if you have no time, enjoying a vacation, etc., then I will likely try to see if I can hack something myself in a few days
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<sehraf> montjoie[home], or anybody else: i still have the dead lock issue with the security system driver (v4) ... any ideas how to debug / fix this? http://pastebin.com/RC805xAg
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<montjoie[home]> sehraf: strange
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<montjoie[home]> sehraf: could you tell me more about your config kernel/cryptodev/openssl/etc..version
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<sehraf> montjoie[home]: here you go http://pastebin.com/WDg697Ve
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<oliv3r_phone> didnt wingrimw investigate framebuffer/hdmi for u-boot once
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<montjoie[home]> sehraf: does modprobe tcrypt works ?
<sehraf> montjoie[home]: i don't have that module
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<sehraf> montjoie[home]: i found the config to build tcrypt .. i'll rebuild the kernel and let you know if i can load it
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<ssvb> oliv3r_phone: yes, I remember something like this, but now it's a very good time to make it happen for real
<ssvb> oliv3r_phone: especially considering that arokux took care of the usb driver and the users should be able to use a usb keyboard
<oliv3r_phone> very true. is wingrime even around anymore?
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<ssvb> oliv3r_phone: I think he added me on google+ a few days ago, so he might be still around
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<sehraf> montjoie[home]: modprobe: ERROR: could not insert 'tcrypt': Resource temporarily unavailable ... not sure if this is usefull ...
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* Wizzup is trying to figure out if NAND support is in mainline (fur cubieboards), I think it would go as MTD, right?
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<arokux2> ijc: hey, do you know what Marek means by this? http://article.gmane.org/gmane.comp.hardware.netbook.arm.sunxi/11353
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<Wizzup> arokux2: well
<Wizzup> Presumably 'add USB options to configs' is vague
<Wizzup> Something like: 'Add USB CONFIG options to Linux <something>' would be more clear
<Wizzup> but idn
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<wingrime> ssvb: ping
<wingrime> Recently was talk around hdmi
<arokux2> hi wingrime
<ssvb> hi wingrime
<wingrime> And any success?
<wingrime> Hi all
<ijc> arokux2: I think he wants more description for each patch. Maybe some of them are fairly trivial/obvious and don't require more than a single line but none of the 5 patches have anything other than a subject line and surely some of them are worthy of a bit more verbiage. Take a look at "git log" for the sort of things which are expected.
<wingrime> Sory for some absence from channel, it's all about time zone and full time work
<wingrime> Conversatio
<wingrime> Err
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<wingrime> Conversations here require be in channel when deep night there
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<wingrime> libv: how driver woks goes on?
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<ssvb> arokux2: I guess that patch would benefit from having a description about *why* you are enabling USB for sunxi
<ssvb> arokux2: just add some basic overview of the hardware (how common is to have a USB port on typical sunxi devices, etc.)
<arokux2> ssvb: ok
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<ssvb> arokux2: also the maintainers are sometimes deliberately rude just to check if you are a sane person and whether you can communicate politely and obediently satisfy their requests :)
<arokux2> :)
<ssvb> wingrime: how far have you advanced with the hdmi support yourself?
<ssvb> wingrime: got any notes in the wiki or somewhere else?
<wingrime> ssvb: i made uboot app that configured all stuff in hdmi regs
<wingrime> But no success
<wingrime> I tryed to get testing patten according manual , I only get thos, when I set that bit on living system
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<ssvb> wingrime: if I were to do it, I would probably try to reduce the current disp driver in the linux kernel to the very minimum, chopping off all the extras
<ssvb> wingrime: and then see what remains
<wingrime> I even tryed copy all regs from living system, but no success, I tryed only hdmi module without video frontend backend
<wingrime> So only thing I have to suggest ,that hdmi need video backend and fronted be gate and clocked
<ssvb> wingrime: imho it is easier to start with some working state and gradually modify it, compared to implementing everything from scratch and hoping that it works
<wingrime> As far i tryed to get test patten that besides in hdmi module it self
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<ssvb> the documentation is not exactly great
<wingrime> But was half year ago, so I can miss something. I hope to see what libv says..
<wingrime> ssvb: most impressive thing was - hdmi have own pll within IP module and cfg regs for if
<wingrime> Dedicated pll, not within clock control module was really strange
<wingrime> ssvb: I think I will need some logic analyser, to check what is going on on wires
<ssvb> wingrime: do you have some ideas where it might be possible to get this logic analyser? or just talking theoretically?
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<xhato> hi there
<wingrime> I can use low freq Oscilloscope on work
<xhato> im developer of a small web os for openmoko, link: https://www.youtube.com/watch?v=AFcClH12qyw
<xhato> m wondering if i can install linux, in my tablet aniol
<wingrime> But it seems be difficult to remeber what I tryed / what not
<xhato> no one have an image that can hellp me?
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<ssvb> xhato: have you checked http://linux-sunxi.org ? does it have any information about the specific model of your tablet?
<xhato> i checked,
<xhato> my tablet is ainol novo7 rainbow
<xhato> with android 4.2.4
<xhato> and armv7
<xhato> i tried all images
<xhato> but it dos not boot from sd
<ssvb> xhato: please read carefully everything that is written at http://linux-sunxi.org/New_Device_howto
<xhato> ok , thank you, i will provide feedback after some time
<ssvb> wingrime: in any case, we have a very strict deadline (only roughly a week) to implement the u-boot video driver with hdmi support
<ssvb> wingrime: it is high on my list of "want to have" things, so I may try this gamble :)
<wingrime> Hdmi not enought
<ssvb> wingrime: lcd would be surely nice, but even hdmi is better than nothing
<wingrime> You need video fronted/backend too
<ssvb> wingrime: yes, of course
<wingrime> Thats looks gamble so much
<wingrime> Only visible way - crop disp and refactor
<ssvb> that's the plan
<wingrime> )
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<oliv3r> what drivers haven't beenported to te mainline u-bootrelease yet?
<oliv3r> (from the sunxi variant)
<ssvb> oliv3r: that's a good question
<oliv3r> sorry for not having keept up
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<oliv3r> ssvb: i was hoping you'd supprise me with an answer :)
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<xavia> I am having a weird issue where udev is not creating devices inside /dev, the system boots fine, but then I don't see for example.. any of my block devices in /dev.. has anyone come across an issue like this before?
<oliv3r> not really, xavia
<xavia> weird, they do show up in /sys
<xavia> *sigh*
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<arokux2> ijc: should I add your Acked-By to my commit messages if I have change commit messages..?
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