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Re: Beholder card M6 with MPEG2 coder

Hi,

Am Montag, den 12.05.2008, 20:11 +1000 schrieb Dmitri Belimov:
> Hi 
> 
> Now I start support MPEG2 coder in Beholder M6 card.
> I have few questions:
> 1. Befor start MPEG2 stream need configure the saa7134 chip. How to I can make it correctly?
> 2. Where I can read more about it??
> 
> With my best regards, Dmitry.
> 

Dmitry, there is some bug on saa7134-empress after ioctl2 conversion
with recent stuff. I  have only a not yet supported card and can't help
much.

To send the M6 extra patch with the empress encoder enabled was not much
helpful in this situation to track down latest working status, if it was
never tested.

However, there is some thread on the linux-dvb ML with Frederic Cand
involved and he seems to have that latest working status now with a
known supported card before ioctl2 conversion. On mine format setup
fails for all known previously working and it needs more work on it.

On recent, my latest report was that the ioctls seem to come through
again. In fact, given that the empress pci device was dev/video1 out of
three and the empress got /dev/video4 then, I was only able to
control /dev/video2 from empress /dev/video4 successfully for all, but
not for set standard and channel, which never worked for my card so far.

The assumption, to let /dev/video2 to the empress, assigning video_nr
0,1,3,4 to the other cards would resolve that problem, now turns out to
be wrong.

Even lining up minors takes free /dev/video2 now for the empress device,
it is still associated with /dev/video3 of a different card.

The bug is in within lining up minors and assigning correctly from pci
dev to empress dev.

Putting the card now back into another machine as the last of four, the
previously reported bug becomes visible again, which happens on
empress_querycap.

Don't know when I'll have time for it again, so I leave at least the
oops again, which in my case is not the end of the latter ...

BTW, we still have the already reported other bugs.

The users can't set the tuner type anymore. Since almost all older cards
with can tuners and not global silicon tuners, need to set the tuner
type independently from what is in the card's entry hard coded for only
one TV standard, it is not a minor issue.

The users can't force PAL and SECAM subnorms anymore.
This will hit at least all PAL_BG NICAM users, lots of countries in
Europe, since this often ends up in PAL_I detection there and at least
SECAM_L will lose against SECAM_DK again I would expect.

Cheers,
Hermann

oops with qv4l2 on empress /dev/video4

> saa7133[2]: registered device vbi2
> saa7134[3]: setting pci latency timer to 64
> saa7134[3]: found at 0000:01:0a.0, rev: 1, irq: 16, latency: 64, mmio: 0xe8003000
> saa7134[3]: subsystem: 16be:5000, board: EMPRESS [card=4,insmod option]
> saa7134[3]: board init: gpio is 820000
> tuner' 5-0043: chip found @ 0x86 (saa7134[3])
> tda9887 5-0043: creating new instance
> tda9887 5-0043: tda988[5/6/7] found
> tuner' 5-0061: chip found @ 0xc2 (saa7134[3])
> saa7134[3]: i2c eeprom 00: be 16 00 50 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
> saa7134[3]: i2c eeprom 10: 00 ff 86 0f ff 20 ff 00 01 50 32 79 01 3c ca 50
> saa7134[3]: i2c eeprom 20: 01 40 01 02 02 03 01 00 06 ff 00 6c 02 51 96 2b
> saa7134[3]: i2c eeprom 30: a7 58 7a 1f 03 8e 84 5e da 7a 04 b3 05 87 b2 3c
> saa7134[3]: i2c eeprom 40: ff 1d 00 c2 86 10 01 01 00 00 fd 79 44 9f c2 8f
> saa7134[3]: i2c eeprom 50: ff ff ff ff ff ff 06 06 0f 00 0f 00 0f 00 0f 00
> saa7134[3]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> saa7134[3]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> tuner-simple 5-0061: creating new instance
> tuner-simple 5-0061: type set to 63 (Philips FMD1216ME MK3 Hybrid Tuner)
> saa6752hs 5-0020: saa6752hs: chip found @ 0x40
> saa7134[3]: registered device video3 [v4l2]
> saa7134[3]: registered device vbi3
> saa7134[3]: registered device radio2
> DVB: registering new adapter (saa7133[0])
> DVB: registering frontend 0 (Philips TDA10046H DVB-T)...
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: found firmware revision 29 -- ok
> DVB: registering new adapter (saa7133[1])
> DVB: registering frontend 1 (Philips TDA10046H DVB-T)...
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: found firmware revision 29 -- ok
> DVB: registering new adapter (saa7133[2])
> DVB: registering frontend 2 (Philips TDA10046H DVB-T)...
> tda1004x: setting up plls for 48MHz sampling clock
> tda1004x: found firmware revision 26 -- ok
> saa7134[3]/empress: saa7134[3]: empress_init
> saa7134[3]: registered device video4 [mpeg]
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: video signal acquired
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: video signal acquired
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: open minor=4
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: no video signal
> saa7134[3]/empress: video signal acquired
> saa7134[3]/empress: open minor=4
> BUG: unable to handle kernel NULL pointer dereference at 00000000
> IP: [<c01d893a>] strlen+0x8/0x11
> *pde = 189ef067 *pte = 00000000
> Oops: 0000 [#1] PREEMPT
> Modules linked in: saa7134_empress tda1004x saa7134_dvb saa6752hs tuner_simple tuner_types tda9887 videobuf_dvb dvb_core tda827x tda8290 tuner saa7134 videodev v4l1_compat compat_ioctl32 v4l2_common videobuf_dma_sg videobuf_core ir_kbd_i2c ir_common tveeprom sit tunnel4 rfcomm l2cap bluetooth autofs4 fuse sunrpc ipt_REJECT iptable_filter ip_tables xt_tcpudp ip6t_ipv6header ip6t_REJECT ip6table_filter ip6_tables x_tables ipv6 dm_mirror dm_multipath dm_mod snd_intel8x0 floppy snd_ac97_codec ac97_bus snd_seq_dummy 3c59x snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device pcspkr mii snd_pcm_oss snd_mixer_oss snd_pcm i2c_nforce2 snd_timer i2c_core snd soundcore snd_page_alloc button pata_acpi pata_amd libata sd_mod scsi_mod dock ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: tda827x]
> 
> Pid: 25352, comm: qv4l2 Not tainted (2.6.25 #4)
> EIP: 0060:[<c01d893a>] EFLAGS: 00010246 CPU: 0
> EIP is at strlen+0x8/0x11
> EAX: 00000000 EBX: 00000020 ECX: ffffffff EDX: 00000000
> ESI: 00000000 EDI: 00000000 EBP: d89d1edc ESP: d89d1de4
>  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> Process qv4l2 (pid: 25352, ti=d89d0000 task=f6e90cb0 task.ti=d89d0000)
> Stack: d89d1f34 c01d7049 c0116a51 d89d1ecc f8a4a4e4 d89d1f34 efbe8400 f8a8a4d4
>        f8a8a4a5 00000000 f89d6c3d 80685600 d881f5e0 00000001 efb42000 c042cf44
>        c011b667 00000000 00000202 c0168c66 f739000b f7390005 00000101 00000000
> Call Trace:
>  [<c01d7049>] strlcpy+0x14/0x5f
>  [<c0116a51>] __wake_up_common+0x2d/0x52
>  [<f8a8a4d4>] empress_querycap+0x2f/0x5f [saa7134_empress]
>  [<f8a8a4a5>] empress_querycap+0x0/0x5f [saa7134_empress]
>  [<f89d6c3d>] __video_do_ioctl+0x4d0/0x2d74 [videodev]
>  [<c011b667>] wake_up_klogd+0x2b/0x2d
>  [<c0168c66>] __link_path_walk+0xb15/0xc21
>  [<c016ef05>] dput+0x15/0xfc
>  [<c0173169>] mntput_no_expire+0x11/0x7f
>  [<c0168dfd>] path_walk+0x8b/0x93
>  [<c011bd13>] printk+0x14/0x18
>  [<f89d978e>] video_ioctl2+0x16d/0x233 [videodev]
>  [<f89d9619>] video_open+0x138/0x140 [videodev]
>  [<c016ac53>] vfs_ioctl+0x47/0x5d
>  [<c016aebd>] do_vfs_ioctl+0x254/0x26b
>  [<c013e382>] audit_syscall_exit+0x2a0/0x2bc
>  [<c016af15>] sys_ioctl+0x41/0x58
>  [<c0104786>] syscall_call+0x7/0xb
>  =======================
> Code: eb 04 19 c0 0c 01 5e 5f c3 56 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e c3 57 83 c9 ff 89 c7 31 c0 <f2> ae f7 d1 49 5f 89 c8 c3 57 89 c7 89 d0 31 d2 85 c9 74 0c f2
> EIP: [<c01d893a>] strlen+0x8/0x11 SS:ESP 0068:d89d1de4
> ---[ end trace 4ac505a5bbed981f ]---






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