+u32 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod)
+{
+ u32 freq, round;
+ /* Formulat :
+ Tuner_Frequency(MHz) = Regs / 64
+ Tuner_granularity(MHz) = Regs / 2048
+ real_Tuner_Frequency = Tuner_Frequency(MHz) - Tuner_granularity(MHz)
+ */
+ freq = (stv0900_get_bits(intp, TUN_RFFREQ2) << 10) +
+ (stv0900_get_bits(intp, TUN_RFFREQ1) << 2) +
+ stv0900_get_bits(intp, TUN_RFFREQ0);
+
+ freq = (freq * 1000) / 64;
+
+ round = (stv0900_get_bits(intp, TUN_RFRESTE1) >> 2) +
+ stv0900_get_bits(intp, TUN_RFRESTE0);
+
+ round = (round * 1000) / 2048;
+
+ return freq + round;
+}
+
+void stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
+ u32 Bandwidth, int demod)
+{
+ u32 tunerFrequency;
+ /* Formulat:
+ Tuner_frequency_reg= Frequency(MHz)*64
+ */
+ tunerFrequency = (Frequency * 64) / 1000;
+
+ stv0900_write_bits(intp, TUN_RFFREQ2, (tunerFrequency >> 10));
+ stv0900_write_bits(intp, TUN_RFFREQ1, (tunerFrequency >> 2) & 0xff);
+ stv0900_write_bits(intp, TUN_RFFREQ0, (tunerFrequency & 0x03));
+ /* Low Pass Filter = BW /2 (MHz)*/
+ stv0900_write_bits(intp, TUN_BW, Bandwidth / 2000000);
+ /* Tuner Write trig */
+ stv0900_write_reg(intp, TNRLD, 1);
+}
+