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a1014d7)
Both ATSC and DVB @ 6MHz bandwidth require the same offset.
While we're fixing it, let's cleanup the bandwidth setup to better
reflect the fact that it is a function of the bandwidth.
Thanks to Terry Wu <terrywu2009@gmail.com> for pointing this issue and
to Andy Walls <awalls@radix.net> for an initial patch for this fix.
Cc: Terry Wu <terrywu2009@gmail.com>
Acked-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* that xc2028 will be in a safe state.
* Maybe this might also be needed for DTV.
*/
* 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});
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)