[linux-dvb] Patches to fix support for VisionPlus DTV (VP1020) / tuning problem

[Manu Abraham]

Steffen Motzer wrote:
> Steffen Motzer wrote:
> 
>> This revised patch for dst.c also fixes the tuning problems. It seems 
>> that sometimes the asic acknowledged a command but failed to execute 
>> it. This might have also be the reason why sometimes szap reported 
>> that the tuner supposedly had lost the lock on the signal even though 
>> it did not.
> 
> 
> In order to decrease the delay ASIC_DELAY I did some testing and found
> out that the absolute minimum with my card is 18ms. With 17ms there are
> many dst_error_recovery messages in the log but the card does tune after
> calling dst_error_recovery a couple of times. With any value lower the
> card almost never tunes.
> 
> I think 20ms should be a safe value for this card.
> 
> 

With your patch my cards (VP-1030A, VP-1032A, DST-03T, DST-MOT) which 
were working quite okay,  gave similar results as attached  The current 
result is from the VP-1030, but in fact all the said cards had the same 
problem.. I have asked a couple of others to check whether it works for 
them at least .. Let's see what can be done ..


Apr 24 23:54:03 deploy kernel: dst_comm_init: Initializing DST..
Apr 24 23:54:03 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:03 deploy kernel: dst_wait_dst_ready: dst wait NOT ready 
after 200
Apr 24 23:54:03 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:03 deploy kernel: rdc_reset_state: Resetting state machine
Apr 24 23:54:03 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0000]
Apr 24 23:54:03 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0002]
Apr 24 23:54:03 deploy kernel: write_dst writing 00 09 00 02 01 00 00 f4
Apr 24 23:54:03 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: read_dst reply is 0xff
Apr 24 23:54:04 deploy kernel: dst_wait_dst_ready: dst wait ready after 0
Apr 24 23:54:04 deploy kernel: read_dst reply is 0x0
Apr 24 23:54:04 deploy kernel:  0x9 0x0 0x2 0x1 0x0 0x0 0xf4
Apr 24 23:54:04 deploy kernel: dst_comm_init: Initializing DST..
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: dst_wait_dst_ready: dst wait NOT ready 
after 200
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: rdc_reset_state: Resetting state machine
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0000]
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0002]
Apr 24 23:54:04 deploy kernel: write_dst writing 00 09 00 02 01 00 00 f4
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: read_dst reply is 0xff
Apr 24 23:54:04 deploy kernel: dst_wait_dst_ready: dst wait ready after 0
Apr 24 23:54:04 deploy kernel: read_dst reply is 0x0
Apr 24 23:54:04 deploy kernel:  0x9 0x0 0x2 0x1 0x0 0x0 0xf4
Apr 24 23:54:04 deploy kernel: dst_comm_init: Initializing DST..
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: dst_wait_dst_ready: dst wait NOT ready 
after 200
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:04 deploy kernel: rdc_reset_state: Resetting state machine
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0000]
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0002]
Apr 24 23:54:04 deploy kernel: write_dst writing 00 08 04 e0 10 38 f3 d9
Apr 24 23:54:04 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:05 deploy kernel: read_dst reply is 0xff



snipped away quite a lot




Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_wait_dst_ready: dst wait NOT ready 
after 200
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: rdc_reset_state: Resetting state machine
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[0002], enbb=[0002], 
outhigh=[0002]
Apr 24 23:54:27 deploy kernel: write_dst writing 09 00 05 70 01 00 6b 6c 
65 45
Apr 24 23:54:27 deploy kernel: write_dst: _write_dst error (err == -5, 
len == 0x0a, b0 == 0x09)
Apr 24 23:54:27 deploy kernel: write_dst: Wrote=[09 00 05 70 01 00 6b 6c 
65 45 ]
Apr 24 23:54:27 deploy kernel: dst_error_recovery: Trying to return from 
previous errors...
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: write_dst: _write_dst error (err == -5, 
len == 0x0a, b0 == 0x09)
Apr 24 23:54:27 deploy kernel: write_dst: Wrote=[09 00 05 70 01 00 6b 6c 
65 45 ]
Apr 24 23:54:27 deploy kernel: dst_error_recovery: Trying to return from 
previous errors...
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0001], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: write_dst: RDC 8820 RESET...
Apr 24 23:54:27 deploy kernel: dst_error_bailout: Trying to bailout from 
previous error...
Apr 24 23:54:27 deploy kernel: rdc_8820_reset: Resetting DST
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[0004], enbb=[0004], 
outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[0004], enbb=[0004], 
outhigh=[0004]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_gpio_outb: mask=[ffffffff], 
enbb=[0000], outhigh=[0000]
Apr 24 23:54:27 deploy kernel: dst_write_tuna: write not successful



Manu