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[media] stb0899: store autodetected inversion while tuning in non S2 mode 

In non S2 mode, the device is able to autodetect inversion. So
let's store it for tuning to S2 transponders.

Signed-off-by: Reinhard Nißl <rnissl@gmx.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Reinhard Nißl 2013-06-02 15:01:18 -03:00 committed by Mauro Carvalho Chehab
parent 0c1d2b14d0
commit b71e2c4cd8
1 changed files with 8 additions and 0 deletions
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8
drivers/media/dvb-frontends/stb0899_algo.c
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@ -425,6 +425,14 @@ static enum stb0899_status stb0899_search_data(struct stb0899_state *state)
if (internal->status == DATAOK) { if (internal->status == DATAOK) {
stb0899_read_regs(state, STB0899_CFRM, cfr, 2); /* get derotator frequency */ stb0899_read_regs(state, STB0899_CFRM, cfr, 2); /* get derotator frequency */
/* store autodetected IQ swapping as default for DVB-S2 tuning */
reg = stb0899_read_reg(state, STB0899_IQSWAP);
if (STB0899_GETFIELD(SYM, reg))
internal->inversion = IQ_SWAP_ON;
else
internal->inversion = IQ_SWAP_OFF;
internal->derot_freq = state->config->inversion * MAKEWORD16(cfr[0], cfr[1]); internal->derot_freq = state->config->inversion * MAKEWORD16(cfr[0], cfr[1]);
dprintk(state->verbose, FE_DEBUG, 1, "------> DATAOK ! Derot Freq=%d", internal->derot_freq); dprintk(state->verbose, FE_DEBUG, 1, "------> DATAOK ! Derot Freq=%d", internal->derot_freq);
} }