diff options
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/tuners/tuner-xc2028.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index 14649e456fd..27e7cb6622b 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -917,22 +917,29 @@ static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */, * that xc2028 will be in a safe state. * Maybe this might also be needed for DTV. */ - if (new_mode == T_ANALOG_TV) { + if (new_mode == T_ANALOG_TV) rc = send_seq(priv, {0x00, 0x00}); - } else if (priv->cur_fw.type & ATSC) { - offset = 1750000; - } else { - offset = 2750000; + + /* + * Digital modes require an offset to adjust to the + * proper frequency. + * Analog modes require offset = 0 + */ + if (new_mode != T_ANALOG_TV) { + /* Sets the offset according with firmware */ + if (priv->cur_fw.type & DTV6) + offset = 1750000; + else if (priv->cur_fw.type & DTV7) + offset = 2250000; + else /* DTV8 or DTV78 */ + offset = 2750000; + /* - * We must adjust the offset by 500kHz in two cases in order - * to correctly center the IF output: - * 1) When the ZARLINK456 or DIBCOM52 tables were explicitly - * selected and a 7MHz channel is tuned; - * 2) When tuning a VHF channel with DTV78 firmware. + * We must adjust the offset by 500kHz when + * tuning a 7MHz VHF channel with DTV78 firmware + * (used in Australia, Italy and Germany) */ - if (((priv->cur_fw.type & DTV7) && - (priv->cur_fw.scode_table & (ZARLINK456 | DIBCOM52))) || - ((priv->cur_fw.type & DTV78) && freq < 470000000)) + if ((priv->cur_fw.type & DTV78) && freq < 470000000) offset -= 500000; } |