[linux-dvb] DVB-T developments

[Dave Chapman <dave@dchapman.com>]

With a lot of help from Marko Kohtala, I have been experimenting with the 
Hauppauge NOVA-t DVB-T card in the UK.

With some patches from Marko, I am getting a complete lock (0x7f in register 
0x32) every time I tune to the correct frequency.  I have also patched the 
driver to monitor register 0x33 (CSI_AVERAGE) on the L64781, and am getting 
values around 0x30 - which I've been told should give me a perfect Transport 
Stream.  

However, if I try to set filters and read data, I am not getting anything.  
An example from my kernel log (I have added extra debugging information) when 
I set a filter is:

Oct 19 16:45:07 damer kernel: dvb_mon(0): mon_afc freq:481833000 
curfreq:481833000 afc:0 sync:7f nest:0 vber:1869 csi_average: 0x32
Oct 19 16:45:22 damer kernel: function : DmxDevPesFilterSet 05
Oct 19 16:45:22 damer kernel: function : DmxDevFilterStart
Oct 19 16:45:22 damer kernel: function : TTBStart
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=0, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=1, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=0, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=1, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000400
Oct 19 16:45:22 damer kernel: vpeirq 00000020
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=0, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=1, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000400
Oct 19 16:45:22 damer kernel: vpeirq 00000020
Oct 19 16:45:22 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:22 damer kernel: fidbirq, dvb->tsf=0, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:23 damer kernel: dvb_irq: isr=0x00000080
Oct 19 16:45:23 damer kernel: fidbirq, dvb->tsf=1, dvb->feeding=1, mem[0]=0x00
Oct 19 16:45:23 damer kernel: dvb_irq: isr=0x00000400

It seems to me that no data is being transferred - mem[0]==0.  Is this part 
of the driver is working?  Has anyone managed to read TS data from the card?

Thanks,

Dave.


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