AM3517 Resize function

Dear Punya Prakash,

   I am also facing same problem in am3517evm. Rotation and resize issue. i am able to rotate my display 180 degrees but not 90 or 270 degrees

with this command   echo "1" > /sys/class/graphics/fb0/rotate. when i try to rotate 90 degrees following is the error on debug port----

[ 157.027130] max frame size 8388608, line size 480
[ 157.027130] max frame size 8388608, line size 480
[ 157.027160] value of r == 0 Memory Region = cda7e884
[ 157.027191] setup_overlay 0, posx 0, posy 0, outw 320, outh 240
[ 157.027191] paddr 8e000000, vaddr d1000000
[ 157.027221] check_overlay 0: (0,0 320x240 -> 320x240) disp (240x320)
[ 157.027221] R in setup_overlay_info == -22 RotationType = 0 Width = 320 Height = 240
[ 157.027252] ovl->setup_overlay_info failed
[ 157.027252] setup_overlay failed
[ 157.027252] apply_changes failed
[ 157.027282] detected fb_set_par error, error code: -22

Thanks in advance,

Rajeev

Hi, Rajeev.
I am facing a similar issue for AM3517EVM: Rotation and resize issue.
I have posted here.
http://e2e.ti.com/support/dsp/sitara_arm174_microprocessors/f/416/t/180397.aspx

Could you please add your case?

Regards,
Kanae

Dear Kanae,

        I had posted about Display Rotation and Resize issue in the link  u have posted..

Regards

Rajeev.

Dear Rajeev,

Thank you!
I hope anybody can help us.

Regards,
Kanae

Can you try with the sample application attached here with this post?

Syntax to run this application is,

./saFbdevRotation -d /dev/fb0 -r <0, 90, 180, 270>

Thanks,

Vaibhav

Hi Vaibhav,

   In a month or so i got first response thanks for that. when i tried to cross compile it showed error linux/omapfb.h no such file or directory

   I had tested your saFbdevRotation application its showing colour stripes in all angles ( 0, 90 180 and 270 degrees)

all the stripes are same from top while, black, red, green and so on...

Following is for your reference 

root@devkit:~# ./saFbdevRotation -d /dev/fb0 90       FOR 90 DEGREE ROTATION
Fix Screen Info:
----------------
Line Length - 480
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 240
Yres - 320
Xres Virtual - 240
Yres Virtual - 960
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 0
[  252.418090] max frame size 4194304, line size 480
[  252.418121] max frame size 4194304, line size 480
[  252.418151] value of r == 0 Memory Region = cee1c884
[  252.418151] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  252.418182] paddr 8f400000, vaddr d1000000
[  252.418182] In Function dss_ovl_set_overlay_info
[  252.418212] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  252.418212] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  252.418243] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  252.418304] offset0 0, offset1 0, row_inc 1, pix_inc 1
Fix Screen Info:
----------------
Line Length - 480
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 240
Yres - 320
Xres Virtual - 240
Yres Virtual - 320
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 0
[  257.479431] max frame size 4194304, line size 480
[  257.479461] max frame size 4194304, line size 480
[  257.479461] value of r == 0 Memory Region = cee1c884
[  257.479492] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  257.479522] paddr 8f400000, vaddr d1000000
[  257.479522] In Function dss_ovl_set_overlay_info
[  257.479553] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  257.479553] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  257.479583] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  257.479614] offset0 0, offset1 0, row_inc 1, pix_inc 1

root@devkit:~# ./saFbdevRotation -d /dev/fb0 180  FOR 180 Degree ROTATION
Fix Screen Info:
----------------
Line Length - 480
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 240
Yres - 320
Xres Virtual - 240
Yres Virtual - 960
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 0
[  983.121917] max frame size 4194304, line size 480
[  983.121948] max frame size 4194304, line size 480
[  983.121978] value of r == 0 Memory Region = cee1c884
[  983.121978] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  983.122009] paddr 8f400000, vaddr d1000000
[  983.122009] In Function dss_ovl_set_overlay_info
[  983.122039] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  983.122039] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  983.122070] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  983.122131] offset0 0, offset1 0, row_inc 1, pix_inc 1
Fix Screen Info:
----------------
Line Length - 480
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 240
Yres - 320
Xres Virtual - 240
Yres Virtual - 320
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 0
[  988.184753] max frame size 4194304, line size 480
[  988.184783] max frame size 4194304, line size 480
[  988.184814] value of r == 0 Memory Region = cee1c884
[  988.184814] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  988.184844] paddr 8f400000, vaddr d1000000
[  988.184844] In Function dss_ovl_set_overlay_info
[  988.184875] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  988.184875] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  988.184906] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  988.184967] offset0 0, offset1 0, row_inc 1, pix_inc 1

                                                                 

and my u-boot arguments are as follows 

video_mode=omapdss.def_disp=lcd omapfb.vram=0:4M,1:4M,2:4M vram=12M tnlcd.tnlcd_data=8000,240,10,50,10,320,4,3,2,18,18

As you see i had passed 18 BPP and its showing 16 BPP when i run application

what is the problem pleas go through my other post in following link

http://e2e.ti.com/support/dsp/sitara_arm174_microprocessors/f/416/t/180397.aspx#658378

Thanks vaibhav,

Rajeev

Hi Rajeev,

Let me try to response all your questions and issues one-by-one,,

In a month or so i got first response thanks for that. when i tried to cross compile it showed error linux/omapfb.h no such file or directory

[Vaibhav] I really apologize here, we try to respond as many posts as possible and sometimes due to all known and unknown reasons some posts stay unattended.

As far as cross-compile issue is concerned, you have to set the kernel include path for building it. Thats the way all application MUST need built.

all the stripes are same from top while, black, red, green and so on...

[Vaibhav] This is expected and application draws 8 color bars of different colors on Display.

root@devkit:~# ./saFbdevRotation -d /dev/fb0 90       FOR 90 DEGREE ROTATION

[Vaibhav] You have missed to specify "-r" option here before specifying rotation degree. Look at the logs, the rotation doesn't change at all, it always stays at degree 0.

As you see i had passed 18 BPP and its showing 16 BPP when i run application

[Vaibhav] I need come more details here, like, /sys/devices/platform/omapdss/display0/timings?

I believe you are also passing "omapfb.rotate=0 omapfb.vrfb=y" in your bootargs from uboot, right? Also, please refer to the PSP user guide, which actually explains all above information in detail - http://processors.wiki.ti.com/index.php/UserGuideDisplayDrivers_PSP_04.02.00.07

Thanks,

Vaibhav

Hi Vaibhav,

Thanks Vaibhav, I had tested saFbdevRotation with -r yes according to application its getting rotated to 90, 180, 270 without any error.

but why  this "echo "1" > /sys/class/graphics/fb0/rotate" command is getting fb_set_par error -22

when i execute the application, stripes gets displayed in portrait mode and then changes to landscape mode i.e 90 degree rotation. again back to portrait mode.

but after exiting the application its coming back to normal position. What i need is when i boot up directly my application should work in landscape mode.

and other problem is about colour stripes. Below is the image of the display with stripes.

root@devkit:/home# ./saFbdevRotation -d /dev/fb0 -r 90
Fix Screen Info:
----------------
Line Length - 480
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 240
Yres - 320
Xres Virtual - 240
Yres Virtual - 960
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 0

[  686.235626] max frame size 4194304, line size 640
[  686.235656] max frame size 4194304, line size 640
[  686.235687] value of r == 0 Memory Region = cee1e884
[  686.235687] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  686.235717] paddr 8f400000, vaddr d1000000
[  686.235717] In Function dss_ovl_set_overlay_info
[  686.235748] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  686.235778] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  686.235778] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  686.235839] offset0 152960, offset1 152960, row_inc 152961, pix_inc -641
Fix Screen Info:
----------------
Line Length - 640
Physical Address = 8f400000
Buffer Length = 4194304

Var Screen Info:
----------------
Xres - 320
Yres - 240
Xres Virtual - 320
Yres Virtual - 240
Bits Per Pixel - 16
Pixel Clk - 125000
Rotation - 90
[  691.300384] max frame size 4194304, line size 480
[  691.300415] max frame size 4194304, line size 480
[  691.300445] value of r == 0 Memory Region = cee1e884
[  691.300445] setup_overlay 0, posx 0, posy 0, outw 240, outh 320
[  691.300476] paddr 8f400000, vaddr d1000000
[  691.300476] In Function dss_ovl_set_overlay_info
[  691.300506] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  691.300506] R in setup_overlay_info == 0 RotationType = 0 Width = 240 Height = 320
[  691.300537] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[  691.300598] offset0 0, offset1 0, row_inc 1, pix_inc 1

As I still get 16 bits per pixel, i think due to this 16bits per pixel i am getting colour stripes issue in my display.

[Vaibhav] I need come more details here, like, /sys/devices/platform/omapdss/display0/timings?

root@devkit:/# cat sys/devices/platform/omapdss/display0/timings
8000,240/10/50/10,320/4/3/2

root@devkit:/# cat sys/devices/platform/omapdss/display0/name
lcd
 

root@devkit:~# fbset

mode "240x320-78"
    # D: 8.000 MHz, H: 25.806 kHz, V: 78.439 Hz
    geometry 240 320 240 960 16
    timings 125000 50 10 3 4 10 2
    rgba 5/11,6/5,5/0,0/0
endmode

I believe you are also passing "omapfb.rotate=0 omapfb.vrfb=y" in your bootargs from uboot, right?
   
[Rajeev] Actually NO, Bootargs which i passed in u-boot are as follows
             video_mode=omapdss.def_disp=lcd omapfb.vram=0:4M,1:4M,2:4M vram=12M tnlcd.tnlcd_data=8000,240,10,50,10,320,4,3,2,18,18

 When I passed following u-boot arguments omapfb.rotate=0 (or 1,2,3)
          video_mode=omapdss.def_disp=lcd omapfb.vram=0:4M,1:4M,2:4M vram=12M omapfb.rotate=0 omapfb.vrfb=y tnlcd.tnlcd_data=8000,240,10,50,10,320,4,3,2,18,18
  Display is blank and following are kernel debug messages which displays frame-buffer cannot fit into memory and as in debug physical address has some value where as virtual address is null. I think there lies the problem
    

     In Function dss_ovl_set_overlay_info
      max frame size 4194304, line size 480
     cannot fit FB to memory
     value of r == 0 Memory Region = cee1d884
     setup_overlay 0, posx 0, posy 0, outw 240, outh 320
     paddr 70000000, vaddr   (null)
    In Function dss_ovl_set_overlay_info
    check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
    R in setup_overlay_info == 0 RotationType = 1 Width = 240 Height = 320
    check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
    offset0 0, offset1 0, row_inc 3617, pix_inc 1

As you said i am going through the link you provided. i will test an cases related and inform you.

Thanks Vaibhav,

Rajeev.

Hi Vaibhav,

    When I tried to resize my display from portrait  to landscape mode  using a command from PSP user guide link you provided

Display is getting blank(black) and following is the error

root@devkit:~# echo "320,240" > /sys/devices/platform/omapdss/overlay0/output_size
[ 1155.316131] In Function dss_ovl_set_overlay_info
[ 1155.321105] check_overlay 0: (0,0 240x320 -> 320x240) disp (240x320)
[ 1155.327850] check_overlay 0: (0,0 240x320 -> 320x240) disp (240x320)
[ 1155.334533] omapdss MANAGER error: dispc_setup_plane failed for ovl 0
[ 1155.341308] omapdss MANAGER error: configure_overlay 0 failed

where as from landscape to portrait mode its working fine 

root@devkit:~# echo "240,320" > /sys/devices/platform/omapdss/overlay0/output_size
[ 1499.659942] In Function dss_ovl_set_overlay_info
[ 1499.664916] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[ 1499.671661] check_overlay 0: (0,0 240x320 -> 240x320) disp (240x320)
[ 1499.678375] offset0 0, offset1 0, row_inc 1, pix_inc 1

In debug message omapdss manager error and configuration overlay failed

what is the problem. Is there any patch for this error.

Thanks,

Rajeev.

Although these hooks are provided in the driver, it is always recommended to use standard interfaces; it will make sure that all dependent components have been configured properly. I would suggest to either fbdev PUTVSCREEN_INFO ioctl OR use "fbset" utility to change fbdev resolution.

Please refer to the application, it will explain you how to use and configure display when you change rotation.

Thanks,

Vaibhav