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path: root/drivers/media/dvb/frontends/dib8000.c
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Diffstat (limited to 'drivers/media/dvb/frontends/dib8000.c')
-rw-r--r--drivers/media/dvb/frontends/dib8000.c137
1 files changed, 89 insertions, 48 deletions
diff --git a/drivers/media/dvb/frontends/dib8000.c b/drivers/media/dvb/frontends/dib8000.c
index 898400d331a3..6f6fa29d9ea4 100644
--- a/drivers/media/dvb/frontends/dib8000.c
+++ b/drivers/media/dvb/frontends/dib8000.c
@@ -28,18 +28,6 @@ MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB8000: "); printk(args); printk("\n"); } } while (0)
-enum frontend_tune_state {
- CT_AGC_START = 20,
- CT_AGC_STEP_0,
- CT_AGC_STEP_1,
- CT_AGC_STEP_2,
- CT_AGC_STEP_3,
- CT_AGC_STEP_4,
- CT_AGC_STOP,
-
- CT_DEMOD_START = 30,
-};
-
#define FE_STATUS_TUNE_FAILED 0
struct i2c_device {
@@ -133,104 +121,104 @@ static int dib8000_write_word(struct dib8000_state *state, u16 reg, u16 val)
return dib8000_i2c_write16(&state->i2c, reg, val);
}
-const int16_t coeff_2k_sb_1seg_dqpsk[8] = {
+static const int16_t coeff_2k_sb_1seg_dqpsk[8] = {
(769 << 5) | 0x0a, (745 << 5) | 0x03, (595 << 5) | 0x0d, (769 << 5) | 0x0a, (920 << 5) | 0x09, (784 << 5) | 0x02, (519 << 5) | 0x0c,
(920 << 5) | 0x09
};
-const int16_t coeff_2k_sb_1seg[8] = {
+static const int16_t coeff_2k_sb_1seg[8] = {
(692 << 5) | 0x0b, (683 << 5) | 0x01, (519 << 5) | 0x09, (692 << 5) | 0x0b, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f, 0 | 0x1f
};
-const int16_t coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const int16_t coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = {
(832 << 5) | 0x10, (912 << 5) | 0x05, (900 << 5) | 0x12, (832 << 5) | 0x10, (-931 << 5) | 0x0f, (912 << 5) | 0x04, (807 << 5) | 0x11,
(-931 << 5) | 0x0f
};
-const int16_t coeff_2k_sb_3seg_0dqpsk[8] = {
+static const int16_t coeff_2k_sb_3seg_0dqpsk[8] = {
(622 << 5) | 0x0c, (941 << 5) | 0x04, (796 << 5) | 0x10, (622 << 5) | 0x0c, (982 << 5) | 0x0c, (519 << 5) | 0x02, (572 << 5) | 0x0e,
(982 << 5) | 0x0c
};
-const int16_t coeff_2k_sb_3seg_1dqpsk[8] = {
+static const int16_t coeff_2k_sb_3seg_1dqpsk[8] = {
(699 << 5) | 0x14, (607 << 5) | 0x04, (944 << 5) | 0x13, (699 << 5) | 0x14, (-720 << 5) | 0x0d, (640 << 5) | 0x03, (866 << 5) | 0x12,
(-720 << 5) | 0x0d
};
-const int16_t coeff_2k_sb_3seg[8] = {
+static const int16_t coeff_2k_sb_3seg[8] = {
(664 << 5) | 0x0c, (925 << 5) | 0x03, (937 << 5) | 0x10, (664 << 5) | 0x0c, (-610 << 5) | 0x0a, (697 << 5) | 0x01, (836 << 5) | 0x0e,
(-610 << 5) | 0x0a
};
-const int16_t coeff_4k_sb_1seg_dqpsk[8] = {
+static const int16_t coeff_4k_sb_1seg_dqpsk[8] = {
(-955 << 5) | 0x0e, (687 << 5) | 0x04, (818 << 5) | 0x10, (-955 << 5) | 0x0e, (-922 << 5) | 0x0d, (750 << 5) | 0x03, (665 << 5) | 0x0f,
(-922 << 5) | 0x0d
};
-const int16_t coeff_4k_sb_1seg[8] = {
+static const int16_t coeff_4k_sb_1seg[8] = {
(638 << 5) | 0x0d, (683 << 5) | 0x02, (638 << 5) | 0x0d, (638 << 5) | 0x0d, (-655 << 5) | 0x0a, (517 << 5) | 0x00, (698 << 5) | 0x0d,
(-655 << 5) | 0x0a
};
-const int16_t coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const int16_t coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = {
(-707 << 5) | 0x14, (910 << 5) | 0x06, (889 << 5) | 0x16, (-707 << 5) | 0x14, (-958 << 5) | 0x13, (993 << 5) | 0x05, (523 << 5) | 0x14,
(-958 << 5) | 0x13
};
-const int16_t coeff_4k_sb_3seg_0dqpsk[8] = {
+static const int16_t coeff_4k_sb_3seg_0dqpsk[8] = {
(-723 << 5) | 0x13, (910 << 5) | 0x05, (777 << 5) | 0x14, (-723 << 5) | 0x13, (-568 << 5) | 0x0f, (547 << 5) | 0x03, (696 << 5) | 0x12,
(-568 << 5) | 0x0f
};
-const int16_t coeff_4k_sb_3seg_1dqpsk[8] = {
+static const int16_t coeff_4k_sb_3seg_1dqpsk[8] = {
(-940 << 5) | 0x15, (607 << 5) | 0x05, (915 << 5) | 0x16, (-940 << 5) | 0x15, (-848 << 5) | 0x13, (683 << 5) | 0x04, (543 << 5) | 0x14,
(-848 << 5) | 0x13
};
-const int16_t coeff_4k_sb_3seg[8] = {
+static const int16_t coeff_4k_sb_3seg[8] = {
(612 << 5) | 0x12, (910 << 5) | 0x04, (864 << 5) | 0x14, (612 << 5) | 0x12, (-869 << 5) | 0x13, (683 << 5) | 0x02, (869 << 5) | 0x12,
(-869 << 5) | 0x13
};
-const int16_t coeff_8k_sb_1seg_dqpsk[8] = {
+static const int16_t coeff_8k_sb_1seg_dqpsk[8] = {
(-835 << 5) | 0x12, (684 << 5) | 0x05, (735 << 5) | 0x14, (-835 << 5) | 0x12, (-598 << 5) | 0x10, (781 << 5) | 0x04, (739 << 5) | 0x13,
(-598 << 5) | 0x10
};
-const int16_t coeff_8k_sb_1seg[8] = {
+static const int16_t coeff_8k_sb_1seg[8] = {
(673 << 5) | 0x0f, (683 << 5) | 0x03, (808 << 5) | 0x12, (673 << 5) | 0x0f, (585 << 5) | 0x0f, (512 << 5) | 0x01, (780 << 5) | 0x0f,
(585 << 5) | 0x0f
};
-const int16_t coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = {
+static const int16_t coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = {
(863 << 5) | 0x17, (930 << 5) | 0x07, (878 << 5) | 0x19, (863 << 5) | 0x17, (0 << 5) | 0x14, (521 << 5) | 0x05, (980 << 5) | 0x18,
(0 << 5) | 0x14
};
-const int16_t coeff_8k_sb_3seg_0dqpsk[8] = {
+static const int16_t coeff_8k_sb_3seg_0dqpsk[8] = {
(-924 << 5) | 0x17, (910 << 5) | 0x06, (774 << 5) | 0x17, (-924 << 5) | 0x17, (-877 << 5) | 0x15, (565 << 5) | 0x04, (553 << 5) | 0x15,
(-877 << 5) | 0x15
};
-const int16_t coeff_8k_sb_3seg_1dqpsk[8] = {
+static const int16_t coeff_8k_sb_3seg_1dqpsk[8] = {
(-921 << 5) | 0x19, (607 << 5) | 0x06, (881 << 5) | 0x19, (-921 << 5) | 0x19, (-921 << 5) | 0x14, (713 << 5) | 0x05, (1018 << 5) | 0x18,
(-921 << 5) | 0x14
};
-const int16_t coeff_8k_sb_3seg[8] = {
+static const int16_t coeff_8k_sb_3seg[8] = {
(514 << 5) | 0x14, (910 << 5) | 0x05, (861 << 5) | 0x17, (514 << 5) | 0x14, (690 << 5) | 0x14, (683 << 5) | 0x03, (662 << 5) | 0x15,
(690 << 5) | 0x14
};
-const int16_t ana_fe_coeff_3seg[24] = {
+static const int16_t ana_fe_coeff_3seg[24] = {
81, 80, 78, 74, 68, 61, 54, 45, 37, 28, 19, 11, 4, 1022, 1017, 1013, 1010, 1008, 1008, 1008, 1008, 1010, 1014, 1017
};
-const int16_t ana_fe_coeff_1seg[24] = {
+static const int16_t ana_fe_coeff_1seg[24] = {
249, 226, 164, 82, 5, 981, 970, 988, 1018, 20, 31, 26, 8, 1012, 1000, 1018, 1012, 8, 15, 14, 9, 3, 1017, 1003
};
-const int16_t ana_fe_coeff_13seg[24] = {
+static const int16_t ana_fe_coeff_13seg[24] = {
396, 305, 105, -51, -77, -12, 41, 31, -11, -30, -11, 14, 15, -2, -13, -7, 5, 8, 1, -6, -7, -3, 0, 1
};
@@ -852,6 +840,14 @@ static int dib8000_set_agc_config(struct dib8000_state *state, u8 band)
return 0;
}
+void dib8000_pwm_agc_reset(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ dib8000_set_adc_state(state, DIBX000_ADC_ON);
+ dib8000_set_agc_config(state, (unsigned char)(BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency / 1000)));
+}
+EXPORT_SYMBOL(dib8000_pwm_agc_reset);
+
static int dib8000_agc_soft_split(struct dib8000_state *state)
{
u16 agc, split_offset;
@@ -939,6 +935,32 @@ static int dib8000_agc_startup(struct dvb_frontend *fe)
}
+static const int32_t lut_1000ln_mant[] =
+{
+ 908, 7003, 7090, 7170, 7244, 7313, 7377, 7438, 7495, 7549, 7600
+};
+
+int32_t dib8000_get_adc_power(struct dvb_frontend *fe, uint8_t mode)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ uint32_t ix = 0, tmp_val = 0, exp = 0, mant = 0;
+ int32_t val;
+
+ val = dib8000_read32(state, 384);
+ /* mode = 1 : ln_agcpower calc using mant-exp conversion and mantis look up table */
+ if (mode) {
+ tmp_val = val;
+ while (tmp_val >>= 1)
+ exp++;
+ mant = (val * 1000 / (1<<exp));
+ ix = (uint8_t)((mant-1000)/100); /* index of the LUT */
+ val = (lut_1000ln_mant[ix] + 693*(exp-20) - 6908); /* 1000 * ln(adcpower_real) ; 693 = 1000ln(2) ; 6908 = 1000*ln(1000) ; 20 comes from adc_real = adc_pow_int / 2**20 */
+ val = (val*256)/1000;
+ }
+ return val;
+}
+EXPORT_SYMBOL(dib8000_get_adc_power);
+
static void dib8000_update_timf(struct dib8000_state *state)
{
u32 timf = state->timf = dib8000_read32(state, 435);
@@ -1401,10 +1423,9 @@ static void dib8000_set_channel(struct dib8000_state *state, u8 seq, u8 autosear
}
break;
}
- }
- if (state->fe.dtv_property_cache.isdbt_sb_mode == 1)
for (i = 0; i < 8; i++)
dib8000_write_word(state, 343 + i, ncoeff[i]);
+ }
// P_small_coef_ext_enable=ISDB-Tsb, P_small_narrow_band=ISDB-Tsb, P_small_last_seg=13, P_small_offset_num_car=5
dib8000_write_word(state, 351,
@@ -1854,6 +1875,24 @@ static int dib8000_sleep(struct dvb_frontend *fe)
}
}
+enum frontend_tune_state dib8000_get_tune_state(struct dvb_frontend *fe)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ return state->tune_state;
+}
+EXPORT_SYMBOL(dib8000_get_tune_state);
+
+int dib8000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state)
+{
+ struct dib8000_state *state = fe->demodulator_priv;
+ state->tune_state = tune_state;
+ return 0;
+}
+EXPORT_SYMBOL(dib8000_set_tune_state);
+
+
+
+
static int dib8000_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
{
struct dib8000_state *state = fe->demodulator_priv;
@@ -2043,29 +2082,31 @@ static int dib8000_read_status(struct dvb_frontend *fe, fe_status_t * stat)
*stat = 0;
- if ((lock >> 14) & 1) // AGC
+ if ((lock >> 13) & 1)
*stat |= FE_HAS_SIGNAL;
- if ((lock >> 8) & 1) // Equal
+ if ((lock >> 8) & 1) /* Equal */
*stat |= FE_HAS_CARRIER;
- if ((lock >> 3) & 1) // TMCC_SYNC
+ if (((lock >> 1) & 0xf) == 0xf) /* TMCC_SYNC */
*stat |= FE_HAS_SYNC;
- if ((lock >> 5) & 7) // FEC MPEG
+ if (((lock >> 12) & 1) && ((lock >> 5) & 7)) /* FEC MPEG */
*stat |= FE_HAS_LOCK;
- lock = dib8000_read_word(state, 554); // Viterbi Layer A
- if (lock & 0x01)
- *stat |= FE_HAS_VITERBI;
+ if ((lock >> 12) & 1) {
+ lock = dib8000_read_word(state, 554); /* Viterbi Layer A */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
- lock = dib8000_read_word(state, 555); // Viterbi Layer B
- if (lock & 0x01)
- *stat |= FE_HAS_VITERBI;
+ lock = dib8000_read_word(state, 555); /* Viterbi Layer B */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
- lock = dib8000_read_word(state, 556); // Viterbi Layer C
- if (lock & 0x01)
- *stat |= FE_HAS_VITERBI;
+ lock = dib8000_read_word(state, 556); /* Viterbi Layer C */
+ if (lock & 0x01)
+ *stat |= FE_HAS_VITERBI;
+ }
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.