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? 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]<javascript:>> > 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] <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > Jon Smirl > [email protected] <javascript:> > -- 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.
