Re: [Xenomai-core] Analogy DIO speed

2010-03-04 Thread Alexis Berlemont
Hi,

On Thu, Mar 4, 2010 at 1:54 AM, Stefan Schaal ssch...@usc.edu wrote:
 Hi Alexis,

  thanks a lot or the reply. Just to check: is it possible to use commands 
 with digital subdevices at all? I am not sure whether I understood your 
 comment below correctly. Are your *currently* working to enable commands for 
 DIO subdevices?
Commands are possible with DIO subdevices. The main problem is my test
application which does not handle all the cases.


 Thanks a lot!

 -Stefan


 On Mar 3, 2010, at 15:58, Alexis Berlemont wrote:

 Hi Stefan,

 Sorry for the late reply, I was unavailable yesterday.

 Stefan Schaal wrote:
 Hi Alexis,
 we pulled your analogy branch, and now cmd_write works. Great, and thanks a 
 lot! Next, I tried to use commands with the digital IO subdevice on our 
 board (subdevice #2), but the get an error message:
 [ 2482.771913] Analogy: a4l_check_cmddesc: scan_begin_src, trigger 
 unsupported
 Unfortunately, cmd_write was not designed to work with digital
 subdevices; the command's fields are not appropriate, I am trying to
 make it work quite quickly.

 Is there just missing support for the DIO subdevices using commands?
 Best wishes,
 -Stefan
 ps.: feel free to use our machine for debugging -- it now has the latest 
 version of your software installed with linux kernel 2.6.29.5.
 On Feb 28, 2010, at 16:24, Alexis Berlemont wrote:
 Alexis Berlemont wrote:
 Hi,
 Stefan Schaal wrote:
 Hi Alexis,

 On Feb 18, 2010, at 14:34, Alexis Berlemont wrote:

 I have some problems with
 implementing commands on my NI6259 so far.
 Could you remind me what was the problem ?
 See the print-outs below for the problem we have.

 Thanks so much for looking into this!

 -Stefan




 Using the cmd_write() function that you provide in analogy, we get the 
 following problem:

 I am currently trying to fix this bug, which is not that easy. I just
 have one question (that I remember I have already asked you in some way,
 but I just want to be sure):
 Does this bug occur the very first time you launched cmd_write (I mean
 after a reboot) ?

 I managed at last to fix the bug you were facing (at least I hope so).
 The problem was located in the trigger callback which waited for a
 bit-status (fifo half full) before going further; however, sometimes the
 DMA interrupt already occurred and cleaned everything behind your back.

 I have not made a pull request because the current implementation is not
 perfect.

 If you have some time, could you clone my git repository (branch:
 analogy) and check that a simple call to cmd_write does not trigger the
 bug anymore ?

 Many thanks.
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
   subdevices count = 14
   read subdevice index = 0
   write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: channel 1
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: command successfully sent
 cmd_write: triggering failed (ret=-32)

 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133345.213865] Analogy: analogy_ni_pcimio: ni_mio_common: interrupt: 
 b_status=0002 m1_status=80a8
 [133345.332719] Analogy: analogy_ni_pcimio: ni_ao_wait_for_dma_load: 
 timed out waiting for dma load3Analogy: a4l_do_special_insn: execution 
 of the instruction failed (err=-32)


 Another problem we have is with the --mmap option:

 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v --mmap
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
   subdevices count = 14
   read subdevice index = 0
   write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: channel 1
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: buffer size = 65536 bytes
 cmd_write: a4l_mmap() failed (ret=-22)


 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133408.942998] Analogy: a4l_ioctl_mmap: mmap not allowed on this 
 subdevice


 Alexis.
 Alexis.

 Alexis.




Alexis.

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Re: [Xenomai-core] Analogy DIO speed

2010-03-03 Thread Stefan Schaal
Hi Alexis,

  thanks a lot or the reply. Just to check: is it possible to use commands with 
digital subdevices at all? I am not sure whether I understood your comment 
below correctly. Are your *currently* working to enable commands for DIO 
subdevices?

Thanks a lot!

-Stefan


On Mar 3, 2010, at 15:58, Alexis Berlemont wrote:

 Hi Stefan,
 
 Sorry for the late reply, I was unavailable yesterday.
 
 Stefan Schaal wrote:
 Hi Alexis,
 we pulled your analogy branch, and now cmd_write works. Great, and thanks a 
 lot! Next, I tried to use commands with the digital IO subdevice on our 
 board (subdevice #2), but the get an error message:
 [ 2482.771913] Analogy: a4l_check_cmddesc: scan_begin_src, trigger 
 unsupported
 Unfortunately, cmd_write was not designed to work with digital
 subdevices; the command's fields are not appropriate, I am trying to
 make it work quite quickly.
 
 Is there just missing support for the DIO subdevices using commands?
 Best wishes,
 -Stefan
 ps.: feel free to use our machine for debugging -- it now has the latest 
 version of your software installed with linux kernel 2.6.29.5.
 On Feb 28, 2010, at 16:24, Alexis Berlemont wrote:
 Alexis Berlemont wrote:
 Hi,
 Stefan Schaal wrote:
 Hi Alexis,
 
 On Feb 18, 2010, at 14:34, Alexis Berlemont wrote:
 
 I have some problems with
 implementing commands on my NI6259 so far.
 Could you remind me what was the problem ?
 See the print-outs below for the problem we have.
 
 Thanks so much for looking into this!
 
 -Stefan
 
 
 
 
 Using the cmd_write() function that you provide in analogy, we get the 
 following problem:
 
 I am currently trying to fix this bug, which is not that easy. I just
 have one question (that I remember I have already asked you in some way,
 but I just want to be sure):
 Does this bug occur the very first time you launched cmd_write (I mean
 after a reboot) ?
 
 I managed at last to fix the bug you were facing (at least I hope so).
 The problem was located in the trigger callback which waited for a
 bit-status (fifo half full) before going further; however, sometimes the
 DMA interrupt already occurred and cleaned everything behind your back.
 
 I have not made a pull request because the current implementation is not
 perfect.
 
 If you have some time, could you clone my git repository (branch:
 analogy) and check that a simple call to cmd_write does not trigger the
 bug anymore ?
 
 Many thanks.
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
   subdevices count = 14
   read subdevice index = 0
   write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: channel 1
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: command successfully sent
 cmd_write: triggering failed (ret=-32)
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133345.213865] Analogy: analogy_ni_pcimio: ni_mio_common: interrupt: 
 b_status=0002 m1_status=80a8
 [133345.332719] Analogy: analogy_ni_pcimio: ni_ao_wait_for_dma_load: 
 timed out waiting for dma load3Analogy: a4l_do_special_insn: execution 
 of the instruction failed (err=-32)
 
 
 Another problem we have is with the --mmap option:
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v --mmap
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
   subdevices count = 14
   read subdevice index = 0
   write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: channel 1
   ranges count = 3
   range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: buffer size = 65536 bytes
 cmd_write: a4l_mmap() failed (ret=-22)
 
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133408.942998] Analogy: a4l_ioctl_mmap: mmap not allowed on this 
 subdevice
 
 
 Alexis.
 Alexis.
 
 Alexis.
 


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Re: [Xenomai-core] Analogy DIO speed

2010-03-02 Thread Stefan Schaal
Hi Alexis,

 we pulled your analogy branch, and now cmd_write works. Great, and thanks a 
lot! Next, I tried to use commands with the digital IO subdevice on our board 
(subdevice #2), but the get an error message:


[ 2482.771913] Analogy: a4l_check_cmddesc: scan_begin_src, trigger unsupported


Is there just missing support for the DIO subdevices using commands?

Best wishes,

-Stefan


ps.: feel free to use our machine for debugging -- it now has the latest 
version of your software installed with linux kernel 2.6.29.5.





On Feb 28, 2010, at 16:24, Alexis Berlemont wrote:

 Alexis Berlemont wrote:
 Hi,
 Stefan Schaal wrote:
 Hi Alexis,
 
 On Feb 18, 2010, at 14:34, Alexis Berlemont wrote:
 
 I have some problems with
 implementing commands on my NI6259 so far.
 Could you remind me what was the problem ?
 
 See the print-outs below for the problem we have.
 
 Thanks so much for looking into this!
 
 -Stefan
 
 
 
 
 Using the cmd_write() function that you provide in analogy, we get the 
 following problem:
 
 I am currently trying to fix this bug, which is not that easy. I just
 have one question (that I remember I have already asked you in some way,
 but I just want to be sure):
 Does this bug occur the very first time you launched cmd_write (I mean
 after a reboot) ?
 
 I managed at last to fix the bug you were facing (at least I hope so).
 The problem was located in the trigger callback which waited for a
 bit-status (fifo half full) before going further; however, sometimes the
 DMA interrupt already occurred and cleaned everything behind your back.
 
 I have not made a pull request because the current implementation is not
 perfect.
 
 If you have some time, could you clone my git repository (branch:
 analogy) and check that a simple call to cmd_write does not trigger the
 bug anymore ?
 
 Many thanks.
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
subdevices count = 14
read subdevice index = 0
write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
ranges count = 3
range's size = 16 (bits)
 cmd_write: channel 1
ranges count = 3
range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: command successfully sent
 cmd_write: triggering failed (ret=-32)
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133345.213865] Analogy: analogy_ni_pcimio: ni_mio_common: interrupt: 
 b_status=0002 m1_status=80a8
 [133345.332719] Analogy: analogy_ni_pcimio: ni_ao_wait_for_dma_load: timed 
 out waiting for dma load3Analogy: a4l_do_special_insn: execution of the 
 instruction failed (err=-32)
 
 
 Another problem we have is with the --mmap option:
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v --mmap
 cmd_write: device analogy0 opened (fd=0)
 cmd_write: basic descriptor retrieved
subdevices count = 14
read subdevice index = 0
write subdevice index = 1
 cmd_write: complex descriptor retrieved
 cmd_write: channel 0
ranges count = 3
range's size = 16 (bits)
 cmd_write: channel 1
ranges count = 3
range's size = 16 (bits)
 cmd_write: scan size = 4
 cmd_write: size to write  = 400
 cmd_write: buffer size = 65536 bytes
 cmd_write: a4l_mmap() failed (ret=-22)
 
 
 r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
 [133408.942998] Analogy: a4l_ioctl_mmap: mmap not allowed on this subdevice
 
 
 Alexis.
 Alexis.
 


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Re: [Xenomai-core] Analogy DIO speed

2010-02-18 Thread Stefan Schaal
Hi Alexis,

On Feb 18, 2010, at 14:34, Alexis Berlemont wrote:

 I have some problems with
 implementing commands on my NI6259 so far.
 Could you remind me what was the problem ?

See the print-outs below for the problem we have.

Thanks so much for looking into this!

-Stefan




Using the cmd_write() function that you provide in analogy, we get the 
following problem:

r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v
cmd_write: device analogy0 opened (fd=0)
cmd_write: basic descriptor retrieved
 subdevices count = 14
 read subdevice index = 0
 write subdevice index = 1
cmd_write: complex descriptor retrieved
cmd_write: channel 0
 ranges count = 3
 range's size = 16 (bits)
cmd_write: channel 1
 ranges count = 3
 range's size = 16 (bits)
cmd_write: scan size = 4
cmd_write: size to write  = 400
cmd_write: command successfully sent
cmd_write: triggering failed (ret=-32)

r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
[133345.213865] Analogy: analogy_ni_pcimio: ni_mio_common: interrupt: 
b_status=0002 m1_status=80a8
[133345.332719] Analogy: analogy_ni_pcimio: ni_ao_wait_for_dma_load: timed out 
waiting for dma load3Analogy: a4l_do_special_insn: execution of the 
instruction failed (err=-32)


Another problem we have is with the --mmap option:

r...@xenomai:/usr/src/xenomai/src/utils/analogy# ./cmd_write -v --mmap
cmd_write: device analogy0 opened (fd=0)
cmd_write: basic descriptor retrieved
 subdevices count = 14
 read subdevice index = 0
 write subdevice index = 1
cmd_write: complex descriptor retrieved
cmd_write: channel 0
 ranges count = 3
 range's size = 16 (bits)
cmd_write: channel 1
 ranges count = 3
 range's size = 16 (bits)
cmd_write: scan size = 4
cmd_write: size to write  = 400
cmd_write: buffer size = 65536 bytes
cmd_write: a4l_mmap() failed (ret=-22)


r...@xenomai:/usr/src/xenomai/src/utils/analogy# dmesg -c
[133408.942998] Analogy: a4l_ioctl_mmap: mmap not allowed on this subdevice


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