Igor M. Liplianin skrev:
On 3 марта 2010 18:42:42 Hendrik Skarpeid wrote:
Igor M. Liplianin wrote:
Now to find GPIO's for LNB power control and ... watch TV :)
Yep. No succesful tuning at the moment. There might also be an issue
with the reset signal and writing to GPIOCTR, as the module at the
moment loads succesfully only once.
As far as I can make out, the LNB power control is probably GPIO 16 and
17, not sure which is which, and how they work.
GPIO15 is wired to tuner #reset
New patch to test
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modprobe si21xx debug=1 produces this output when scanning.
[ 2187.998349] si21xx: si21_read_status : FE_READ_STATUS : VSTATUS: 0x02
[ 2187.998353] si21xx: si21xx_set_frontend : FE_SET_FRONTEND
[ 2187.999881] si21xx: si21xx_setacquire
[ 2187.999884] si21xx: si21xx_set_symbolrate : srate = 27500000
[ 2188.022645] si21xx: si21_read_status : FE_READ_STATUS : VSTATUS: 0x01
[ 2188.054350] si21xx: si21_read_status : FE_READ_STATUS : VSTATUS: 0x02
[ 2188.054355] si21xx: si21xx_set_frontend : FE_SET_FRONTEND
[ 2188.055875] si21xx: si21xx_setacquire
[ 2188.055879] si21xx: si21xx_set_symbolrate : srate = 27500000
[ 2188.110359] si21xx: si21_read_status : FE_READ_STATUS : VSTATUS: 0x02
[ 2188.110366] si21xx: si21xx_set_frontend : FE_SET_FRONTEND
[ 2188.111885] si21xx: si21xx_setacquire
[ 2188.111889] si21xx: si21xx_set_symbolrate : srate = 27500000
[ 2188.166350] si21xx: si21_read_status : FE_READ_STATUS : VSTATUS: 0x02
[ 2188.166354] si21xx: si21xx_set_frontend : FE_SET_FRONTEND
Since the tuner at hand uses a Si2109 chip, VSTATUS 0x01 and 0x02 would
indicate that blind scanning is used. Blind scanning is a 2109/2110
specific function, and may not very usable since we always use initial
tuning files anyway. 2109/10 also supports the legacy scanning method
which is supported by Si2107708.
Is the use of blind scanning intentional?
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