Hi John - could you give me a link to this Android tree? I seem to have difficulties finding it on GitHub...
On Sat, Mar 15, 2014 at 4:35 PM, [email protected] <[email protected]>wrote: > On Sat, Mar 15, 2014 at 11:29 AM, Ivan Kozic <[email protected]> wrote: > > Hi John, > > > > Wow thanks - this looks quite cool - it seems that they've started > working > > on YUV422 16bit and CCIR656 as well. May I ask where did you find the > > driver? > > It is from the current Allwinner Android tree. The CSI driver in sunxi > is about two years old. > > sunxi kernel needs to be updated to use this driver. > > > One crucial file is missing - sun4i_csi_core.h or sunxi_csi_core.h I > guess, > > as it's not for A10 anymore. > > > > > > On Saturday, March 15, 2014 1:37:13 AM UTC+1, Jon Smirl wrote: > >> > >> I copied from the A10 manual. > >> > >> Here's a more recent driver.... > >> > >> On Fri, Mar 14, 2014 at 7:36 PM, Ivan Kozic <[email protected]> wrote: > >> > Hi John - just saw your post. I think you're looking at a wrong > >> > document, as > >> > for A20, the register setting 100 for bits 22:20 is YUV422 16bit - > it's > >> > written in the A20 User Manual on page 371. The problem is in fact > this > >> > very > >> > vague information in the User Manual - it's almost useless. This is > why > >> > I'm > >> > asking for help from someone who maybe knows the kernel a bit more - > for > >> > instance, I'm not even sure which DMA is used for transfers from CSI > to > >> > memory, because I have to figure it out from the driver. > >> > > >> > I'm also not sure where to search for the driver or more help. This > >> > group > >> > seems most professional of all by far - I have tried to contact > >> > Allwinner, > >> > but to no avail so far. As for sunxi kernel and drivers, I only know > of > >> > the > >> > Git branch, but noone there has touched CSI driver for 8 months. > >> > Although I > >> > did always look in the 3.4 branch, maybe I should check out > mainline... > >> > > >> > Anyway, I'll search for the actual solution myself and if I find it > post > >> > back - If anyone can speed me up, I'll be most grateful. > >> > > >> > > >> > On Saturday, March 15, 2014 12:01:41 AM UTC+1, Jon Smirl wrote: > >> >> > >> >> I haven't tried any of this... > >> >> > >> >> Look like you would set the input format... > >> >> > >> >> 22:20 R/W 3 INPUT_FMT > >> >> Input data format > >> >> 000: RAW stream > >> >> 001: reserved > >> >> 010: CCIR656(one channel） > >> >> 011: YUV422 > >> >> 100: YUV444（{R, B, G} or {Pr, Pb, Y}） > >> >> > >> >> When the input format is set YUV444 > >> >> 1100: field planar YUV 444 > >> >> 1101: field planar YUV 422 UV combined > >> >> 1110: frame planar YUV 444 > >> >> 1111: frame planar YUV 422 UV combined > >> >> > >> >> The the output format is always 24b, right? > >> >> > >> >> You're going to have to read the user manual. I don't believe anyone > >> >> has played with this before. But it looks like the hardware supports > >> >> it. > >> >> > >> >> Also - the CSI driver in the sunxi tree is quite old. First thing I'd > >> >> do is update it using the most recent Allwinner CSI driver we can > >> >> locate. You might even get lucky and the newer Allwinner drivers > could > >> >> support 16b. > >> >> > >> >> > >> >> On Fri, Mar 14, 2014 at 3:57 PM, Martin Collins < > [email protected]> > >> >> wrote: > >> >> > On 2014-03-14 10:42, Ivan Kozic wrote: > >> >> >> > >> >> >> If someone knows something, please share - if I had some more > >> >> >> documentation, I would have probably already made the whole thing > >> >> >> work, > >> >> > > >> >> > I don't know anything, but by chance I was looking here today: > >> >> > http://dl.linux-sunxi.org/A10/ > >> >> > My impression was that there is an 8 bit channel and a 24 bit > >> >> > channel. > >> >> > So perhaps it won't do 16 bits? > >> >> > > >> >> > Martin > >> >> > > >> >> > -- > >> >> > You received this message because you are subscribed to the Google > >> >> > Groups "linux-sunxi" group. > >> >> > To unsubscribe from this group and stop receiving emails from it, > >> >> > send > >> >> > an email to [email protected]. > >> >> > For more options, visit https://groups.google.com/d/optout. > >> >> > >> >> > >> >> > >> >> -- > >> >> Jon Smirl > >> >> [email protected] > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups > >> > "linux-sunxi" group. > >> > To unsubscribe from this group and stop receiving emails from it, send > >> > an > >> > email to [email protected]. > >> > For more options, visit https://groups.google.com/d/optout. > >> > >> > >> > >> -- > >> Jon Smirl > >> [email protected] > > > > -- > > You received this message because you are subscribed to the Google Groups > > "linux-sunxi" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > Jon Smirl > [email protected] > > -- > You received this message because you are subscribed to a topic in the > Google Groups "linux-sunxi" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/linux-sunxi/vU5-3Pc3iOs/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. 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