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path: root/drivers/media/dvb-frontends/lgdt3306a.c
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Diffstat (limited to 'drivers/media/dvb-frontends/lgdt3306a.c')
-rw-r--r--drivers/media/dvb-frontends/lgdt3306a.c630
1 files changed, 321 insertions, 309 deletions
diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c
index c6597b487fd0..3664da53996b 100644
--- a/drivers/media/dvb-frontends/lgdt3306a.c
+++ b/drivers/media/dvb-frontends/lgdt3306a.c
@@ -33,7 +33,7 @@ MODULE_PARM_DESC(debug, "set debug level (info=1, reg=2 (or-able))");
#define DBG_INFO 1
#define DBG_REG 2
-#define DBG_DUMP 4 //FGR - comment out to remove dump code
+#define DBG_DUMP 4 /* FGR - comment out to remove dump code */
#define lg_printk(kern, fmt, arg...) \
printk(kern "%s(): " fmt, __func__, ##arg)
@@ -220,13 +220,13 @@ static int lgdt3306a_mpeg_mode(struct lgdt3306a_state *state,
int ret;
lg_dbg("(%d)\n", mode);
- //transport packet format
- ret = lgdt3306a_set_reg_bit(state, 0x0071, 7, mode==LGDT3306A_MPEG_PARALLEL?1:0); //TPSENB=0x80
+ /* transport packet format */
+ ret = lgdt3306a_set_reg_bit(state, 0x0071, 7, mode == LGDT3306A_MPEG_PARALLEL?1:0); /* TPSENB=0x80 */
if (lg_chkerr(ret))
goto fail;
- //start of packet signal duration
- ret = lgdt3306a_set_reg_bit(state, 0x0071, 6, 0); //TPSSOPBITEN=0x40; 0=byte duration, 1=bit duration
+ /* start of packet signal duration */
+ ret = lgdt3306a_set_reg_bit(state, 0x0071, 6, 0); /* TPSSOPBITEN=0x40; 0=byte duration, 1=bit duration */
if (lg_chkerr(ret))
goto fail;
@@ -234,9 +234,9 @@ static int lgdt3306a_mpeg_mode(struct lgdt3306a_state *state,
if (lg_chkerr(ret))
goto fail;
- val |= 0x10;//TPCLKSUPB=0x10
+ val |= 0x10; /* TPCLKSUPB=0x10 */
- if (mode==LGDT3306A_MPEG_PARALLEL)
+ if (mode == LGDT3306A_MPEG_PARALLEL)
val &= ~0x10;
ret = lgdt3306a_write_reg(state, 0x0070, val);
@@ -259,11 +259,11 @@ static int lgdt3306a_mpeg_mode_polarity(struct lgdt3306a_state *state,
if (lg_chkerr(ret))
goto fail;
- val &= ~0x06;//TPCLKPOL=0x04, TPVALPOL=0x02
+ val &= ~0x06; /* TPCLKPOL=0x04, TPVALPOL=0x02 */
- if (edge==LGDT3306A_TPCLK_RISING_EDGE)
+ if (edge == LGDT3306A_TPCLK_RISING_EDGE)
val |= 0x04;
- if (valid==LGDT3306A_TP_VALID_HIGH)
+ if (valid == LGDT3306A_TP_VALID_HIGH)
val |= 0x02;
ret = lgdt3306a_write_reg(state, 0x0070, val);
@@ -281,21 +281,21 @@ static int lgdt3306a_mpeg_tristate(struct lgdt3306a_state *state,
lg_dbg("(%d)\n", mode);
- if(mode){
+ if (mode) {
ret = lgdt3306a_read_reg(state, 0x0070, &val);
if (lg_chkerr(ret))
goto fail;
- val &= ~0xA8; //Tristate bus; TPOUTEN=0x80, TPCLKOUTEN=0x20, TPDATAOUTEN=0x08
+ val &= ~0xA8; /* Tristate bus; TPOUTEN=0x80, TPCLKOUTEN=0x20, TPDATAOUTEN=0x08 */
ret = lgdt3306a_write_reg(state, 0x0070, val);
if (lg_chkerr(ret))
goto fail;
- ret = lgdt3306a_set_reg_bit(state, 0x0003, 6, 1);//AGCIFOUTENB=0x40; 1=Disable IFAGC pin
+ ret = lgdt3306a_set_reg_bit(state, 0x0003, 6, 1); /* AGCIFOUTENB=0x40; 1=Disable IFAGC pin */
if (lg_chkerr(ret))
goto fail;
} else {
- ret = lgdt3306a_set_reg_bit(state, 0x0003, 6, 0);//enable IFAGC pin
+ ret = lgdt3306a_set_reg_bit(state, 0x0003, 6, 0); /* enable IFAGC pin */
if (lg_chkerr(ret))
goto fail;
@@ -303,7 +303,7 @@ static int lgdt3306a_mpeg_tristate(struct lgdt3306a_state *state,
if (lg_chkerr(ret))
goto fail;
- val |= 0xA8; //Enable bus
+ val |= 0xA8; /* enable bus */
ret = lgdt3306a_write_reg(state, 0x0070, val);
if (lg_chkerr(ret))
goto fail;
@@ -313,7 +313,7 @@ fail:
return ret;
}
-static int lgdt3306a_ts_bus_ctrl(struct dvb_frontend* fe, int acquire)
+static int lgdt3306a_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
struct lgdt3306a_state *state = fe->demodulator_priv;
@@ -330,21 +330,21 @@ static int lgdt3306a_power(struct lgdt3306a_state *state,
lg_dbg("(%d)\n", mode);
- if(mode == 0){
- ret = lgdt3306a_set_reg_bit(state, 0x0000, 7, 0); //into reset
+ if (mode == 0) {
+ ret = lgdt3306a_set_reg_bit(state, 0x0000, 7, 0); /* into reset */
if (lg_chkerr(ret))
goto fail;
- ret = lgdt3306a_set_reg_bit(state, 0x0000, 0, 0); //power down
+ ret = lgdt3306a_set_reg_bit(state, 0x0000, 0, 0); /* power down */
if (lg_chkerr(ret))
goto fail;
} else {
- ret = lgdt3306a_set_reg_bit(state, 0x0000, 7, 1); //out of reset
+ ret = lgdt3306a_set_reg_bit(state, 0x0000, 7, 1); /* out of reset */
if (lg_chkerr(ret))
goto fail;
- ret = lgdt3306a_set_reg_bit(state, 0x0000, 0, 1); //power up
+ ret = lgdt3306a_set_reg_bit(state, 0x0000, 0, 1); /* power up */
if (lg_chkerr(ret))
goto fail;
}
@@ -364,88 +364,92 @@ static int lgdt3306a_set_vsb(struct lgdt3306a_state *state)
lg_dbg("\n");
- // 0. Spectrum inversion detection manual; spectrum inverted
+ /* 0. Spectrum inversion detection manual; spectrum inverted */
ret = lgdt3306a_read_reg(state, 0x0002, &val);
- val &= 0xF7; //SPECINVAUTO Off
- val |= 0x04; //SPECINV On
+ val &= 0xF7; /* SPECINVAUTO Off */
+ val |= 0x04; /* SPECINV On */
ret = lgdt3306a_write_reg(state, 0x0002, val);
if (lg_chkerr(ret))
goto fail;
- // 1. Selection of standard mode(0x08=QAM, 0x80=VSB)
+ /* 1. Selection of standard mode(0x08=QAM, 0x80=VSB) */
ret = lgdt3306a_write_reg(state, 0x0008, 0x80);
if (lg_chkerr(ret))
goto fail;
- // 2. Bandwidth mode for VSB(6MHz)
+ /* 2. Bandwidth mode for VSB(6MHz) */
ret = lgdt3306a_read_reg(state, 0x0009, &val);
val &= 0xE3;
- val |= 0x0C; //STDOPDETTMODE[2:0]=3
+ val |= 0x0C; /* STDOPDETTMODE[2:0]=3 */
ret = lgdt3306a_write_reg(state, 0x0009, val);
if (lg_chkerr(ret))
goto fail;
- // 3. QAM mode detection mode(None)
+ /* 3. QAM mode detection mode(None) */
ret = lgdt3306a_read_reg(state, 0x0009, &val);
- val &= 0xFC; //STDOPDETCMODE[1:0]=0
+ val &= 0xFC; /* STDOPDETCMODE[1:0]=0 */
ret = lgdt3306a_write_reg(state, 0x0009, val);
if (lg_chkerr(ret))
goto fail;
- // 4. ADC sampling frequency rate(2x sampling)
+ /* 4. ADC sampling frequency rate(2x sampling) */
ret = lgdt3306a_read_reg(state, 0x000D, &val);
- val &= 0xBF; //SAMPLING4XFEN=0
+ val &= 0xBF; /* SAMPLING4XFEN=0 */
ret = lgdt3306a_write_reg(state, 0x000D, val);
if (lg_chkerr(ret))
goto fail;
-#if 0 //FGR - disable any AICC filtering, testing only
+#if 0
+ /* FGR - disable any AICC filtering, testing only */
+
ret = lgdt3306a_write_reg(state, 0x0024, 0x00);
if (lg_chkerr(ret))
goto fail;
- //AICCFIXFREQ0 NT N-1(Video rejection)
+ /* AICCFIXFREQ0 NT N-1(Video rejection) */
ret = lgdt3306a_write_reg(state, 0x002E, 0x00);
ret = lgdt3306a_write_reg(state, 0x002F, 0x00);
ret = lgdt3306a_write_reg(state, 0x0030, 0x00);
- //AICCFIXFREQ1 NT N-1(Audio rejection)
+ /* AICCFIXFREQ1 NT N-1(Audio rejection) */
ret = lgdt3306a_write_reg(state, 0x002B, 0x00);
ret = lgdt3306a_write_reg(state, 0x002C, 0x00);
ret = lgdt3306a_write_reg(state, 0x002D, 0x00);
- //AICCFIXFREQ2 NT Co-Channel(Video rejection)
+ /* AICCFIXFREQ2 NT Co-Channel(Video rejection) */
ret = lgdt3306a_write_reg(state, 0x0028, 0x00);
ret = lgdt3306a_write_reg(state, 0x0029, 0x00);
ret = lgdt3306a_write_reg(state, 0x002A, 0x00);
- //AICCFIXFREQ3 NT Co-Channel(Audio rejection)
+ /* AICCFIXFREQ3 NT Co-Channel(Audio rejection) */
ret = lgdt3306a_write_reg(state, 0x0025, 0x00);
ret = lgdt3306a_write_reg(state, 0x0026, 0x00);
ret = lgdt3306a_write_reg(state, 0x0027, 0x00);
-#else //FGR - this works well for HVR-1955,1975
- // 5. AICCOPMODE NT N-1 Adj.
+#else
+ /* FGR - this works well for HVR-1955,1975 */
+
+ /* 5. AICCOPMODE NT N-1 Adj. */
ret = lgdt3306a_write_reg(state, 0x0024, 0x5A);
if (lg_chkerr(ret))
goto fail;
- //AICCFIXFREQ0 NT N-1(Video rejection)
+ /* AICCFIXFREQ0 NT N-1(Video rejection) */
ret = lgdt3306a_write_reg(state, 0x002E, 0x5A);
ret = lgdt3306a_write_reg(state, 0x002F, 0x00);
ret = lgdt3306a_write_reg(state, 0x0030, 0x00);
- //AICCFIXFREQ1 NT N-1(Audio rejection)
+ /* AICCFIXFREQ1 NT N-1(Audio rejection) */
ret = lgdt3306a_write_reg(state, 0x002B, 0x36);
ret = lgdt3306a_write_reg(state, 0x002C, 0x00);
ret = lgdt3306a_write_reg(state, 0x002D, 0x00);
- //AICCFIXFREQ2 NT Co-Channel(Video rejection)
+ /* AICCFIXFREQ2 NT Co-Channel(Video rejection) */
ret = lgdt3306a_write_reg(state, 0x0028, 0x2A);
ret = lgdt3306a_write_reg(state, 0x0029, 0x00);
ret = lgdt3306a_write_reg(state, 0x002A, 0x00);
- //AICCFIXFREQ3 NT Co-Channel(Audio rejection)
+ /* AICCFIXFREQ3 NT Co-Channel(Audio rejection) */
ret = lgdt3306a_write_reg(state, 0x0025, 0x06);
ret = lgdt3306a_write_reg(state, 0x0026, 0x00);
ret = lgdt3306a_write_reg(state, 0x0027, 0x00);
@@ -494,7 +498,7 @@ static int lgdt3306a_set_vsb(struct lgdt3306a_state *state)
val &= 0x7F;
ret = lgdt3306a_write_reg(state, 0x001C, val);
- // 6. EQ step size
+ /* 6. EQ step size */
ret = lgdt3306a_read_reg(state, 0x2179, &val);
val &= 0xF8;
ret = lgdt3306a_write_reg(state, 0x2179, val);
@@ -503,7 +507,7 @@ static int lgdt3306a_set_vsb(struct lgdt3306a_state *state)
val &= 0xF8;
ret = lgdt3306a_write_reg(state, 0x217A, val);
- // 7. Reset
+ /* 7. Reset */
ret = lgdt3306a_soft_reset(state);
if (lg_chkerr(ret))
goto fail;
@@ -520,62 +524,62 @@ static int lgdt3306a_set_qam(struct lgdt3306a_state *state, int modulation)
lg_dbg("modulation=%d\n", modulation);
- // 1. Selection of standard mode(0x08=QAM, 0x80=VSB)
+ /* 1. Selection of standard mode(0x08=QAM, 0x80=VSB) */
ret = lgdt3306a_write_reg(state, 0x0008, 0x08);
if (lg_chkerr(ret))
goto fail;
- // 1a. Spectrum inversion detection to Auto
+ /* 1a. Spectrum inversion detection to Auto */
ret = lgdt3306a_read_reg(state, 0x0002, &val);
- val &= 0xFB; //SPECINV Off
- val |= 0x08; //SPECINVAUTO On
+ val &= 0xFB; /* SPECINV Off */
+ val |= 0x08; /* SPECINVAUTO On */
ret = lgdt3306a_write_reg(state, 0x0002, val);
if (lg_chkerr(ret))
goto fail;
- // 2. Bandwidth mode for QAM
+ /* 2. Bandwidth mode for QAM */
ret = lgdt3306a_read_reg(state, 0x0009, &val);
- val &= 0xE3; //STDOPDETTMODE[2:0]=0 VSB Off
+ val &= 0xE3; /* STDOPDETTMODE[2:0]=0 VSB Off */
ret = lgdt3306a_write_reg(state, 0x0009, val);
if (lg_chkerr(ret))
goto fail;
- // 3. : 64QAM/256QAM detection(manual, auto)
+ /* 3. : 64QAM/256QAM detection(manual, auto) */
ret = lgdt3306a_read_reg(state, 0x0009, &val);
val &= 0xFC;
- val |= 0x02; //STDOPDETCMODE[1:0]=1=Manual 2=Auto
+ val |= 0x02; /* STDOPDETCMODE[1:0]=1=Manual 2=Auto */
ret = lgdt3306a_write_reg(state, 0x0009, val);
if (lg_chkerr(ret))
goto fail;
- // 3a. : 64QAM/256QAM selection for manual
+ /* 3a. : 64QAM/256QAM selection for manual */
ret = lgdt3306a_read_reg(state, 0x101a, &val);
val &= 0xF8;
- if(modulation == QAM_64){
- val |= 0x02; //QMDQMODE[2:0]=2=QAM64
- } else {
- val |= 0x04; //QMDQMODE[2:0]=4=QAM256
- }
+ if (modulation == QAM_64)
+ val |= 0x02; /* QMDQMODE[2:0]=2=QAM64 */
+ else
+ val |= 0x04; /* QMDQMODE[2:0]=4=QAM256 */
+
ret = lgdt3306a_write_reg(state, 0x101a, val);
if (lg_chkerr(ret))
goto fail;
- // 4. ADC sampling frequency rate(4x sampling)
+ /* 4. ADC sampling frequency rate(4x sampling) */
ret = lgdt3306a_read_reg(state, 0x000D, &val);
val &= 0xBF;
- val |= 0x40; //SAMPLING4XFEN=1
+ val |= 0x40; /* SAMPLING4XFEN=1 */
ret = lgdt3306a_write_reg(state, 0x000D, val);
if (lg_chkerr(ret))
goto fail;
- // 5. No AICC operation in QAM mode
+ /* 5. No AICC operation in QAM mode */
ret = lgdt3306a_read_reg(state, 0x0024, &val);
val &= 0x00;
ret = lgdt3306a_write_reg(state, 0x0024, val);
if (lg_chkerr(ret))
goto fail;
- // 6. Reset
+ /* 6. Reset */
ret = lgdt3306a_soft_reset(state);
if (lg_chkerr(ret))
goto fail;
@@ -619,7 +623,7 @@ fail:
static int lgdt3306a_agc_setup(struct lgdt3306a_state *state,
struct dtv_frontend_properties *p)
{
- //TODO: anything we want to do here???
+ /* TODO: anything we want to do here??? */
lg_dbg("\n");
switch (p->modulation) {
@@ -643,7 +647,7 @@ static int lgdt3306a_set_inversion(struct lgdt3306a_state *state,
lg_dbg("(%d)\n", inversion);
- ret = lgdt3306a_set_reg_bit(state, 0x0002, 2, inversion?1:0);
+ ret = lgdt3306a_set_reg_bit(state, 0x0002, 2, inversion ? 1 : 0);
return ret;
}
@@ -654,8 +658,8 @@ static int lgdt3306a_set_inversion_auto(struct lgdt3306a_state *state,
lg_dbg("(%d)\n", enabled);
- //0=Manual 1=Auto(QAM only)
- ret = lgdt3306a_set_reg_bit(state, 0x0002, 3, enabled);//SPECINVAUTO=0x04
+ /* 0=Manual 1=Auto(QAM only) */
+ ret = lgdt3306a_set_reg_bit(state, 0x0002, 3, enabled);/* SPECINVAUTO=0x04 */
return ret;
}
@@ -666,17 +670,18 @@ static int lgdt3306a_spectral_inversion(struct lgdt3306a_state *state,
int ret = 0;
lg_dbg("(%d)\n", inversion);
-#if 0//FGR - spectral_inversion defaults already set for VSB and QAM; can enable later if desired
+#if 0
+/* FGR - spectral_inversion defaults already set for VSB and QAM; can enable later if desired */
ret = lgdt3306a_set_inversion(state, inversion);
switch (p->modulation) {
case VSB_8:
- ret = lgdt3306a_set_inversion_auto(state, 0);//Manual only for VSB
+ ret = lgdt3306a_set_inversion_auto(state, 0); /* Manual only for VSB */
break;
case QAM_64:
case QAM_256:
- ret = lgdt3306a_set_inversion_auto(state, 1);//Auto ok for QAM
+ ret = lgdt3306a_set_inversion_auto(state, 1); /* Auto ok for QAM */
break;
default:
ret = -EINVAL;
@@ -704,27 +709,27 @@ static int lgdt3306a_set_if(struct lgdt3306a_state *state,
return -EINVAL;
}
- switch(if_freq_khz){
+ switch (if_freq_khz) {
default:
lg_warn("IF=%d KHz is not supportted, 3250 assumed\n", if_freq_khz);
- //fallthrough
- case 3250: //3.25Mhz
+ /* fallthrough */
+ case 3250: /* 3.25Mhz */
nco1 = 0x34;
nco2 = 0x00;
break;
- case 3500: //3.50Mhz
+ case 3500: /* 3.50Mhz */
nco1 = 0x38;
nco2 = 0x00;
break;
- case 4000: //4.00Mhz
+ case 4000: /* 4.00Mhz */
nco1 = 0x40;
nco2 = 0x00;
break;
- case 5000: //5.00Mhz
+ case 5000: /* 5.00Mhz */
nco1 = 0x50;
nco2 = 0x00;
break;
- case 5380: //5.38Mhz
+ case 5380: /* 5.38Mhz */
nco1 = 0x56;
nco2 = 0x14;
break;
@@ -743,13 +748,13 @@ static int lgdt3306a_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct lgdt3306a_state *state = fe->demodulator_priv;
- if (state->cfg->deny_i2c_rptr){
+ if (state->cfg->deny_i2c_rptr) {
lg_dbg("deny_i2c_rptr=%d\n", state->cfg->deny_i2c_rptr);
return 0;
}
lg_dbg("(%d)\n", enable);
- return lgdt3306a_set_reg_bit(state, 0x0002, 7, enable? 0 : 1); //NI2CRPTEN=0x80
+ return lgdt3306a_set_reg_bit(state, 0x0002, 7, enable ? 0 : 1); /* NI2CRPTEN=0x80 */
}
static int lgdt3306a_sleep(struct lgdt3306a_state *state)
@@ -757,13 +762,13 @@ static int lgdt3306a_sleep(struct lgdt3306a_state *state)
int ret;
lg_dbg("\n");
- state->current_frequency = -1; //force re-tune, when we wake
+ state->current_frequency = -1; /* force re-tune, when we wake */
- ret = lgdt3306a_mpeg_tristate(state, 1); //disable data bus
+ ret = lgdt3306a_mpeg_tristate(state, 1); /* disable data bus */
if (lg_chkerr(ret))
goto fail;
- ret = lgdt3306a_power(state, 0); //power down
+ ret = lgdt3306a_power(state, 0); /* power down */
lg_chkerr(ret);
fail:
@@ -785,43 +790,43 @@ static int lgdt3306a_init(struct dvb_frontend *fe)
lg_dbg("\n");
- // 1. Normal operation mode
- ret = lgdt3306a_set_reg_bit(state, 0x0001, 0, 1); //SIMFASTENB=0x01
+ /* 1. Normal operation mode */
+ ret = lgdt3306a_set_reg_bit(state, 0x0001, 0, 1); /* SIMFASTENB=0x01 */
if (lg_chkerr(ret))
goto fail;
- // 2. Spectrum inversion auto detection (Not valid for VSB)
+ /* 2. Spectrum inversion auto detection (Not valid for VSB) */
ret = lgdt3306a_set_inversion_auto(state, 0);
if (lg_chkerr(ret))
goto fail;
- // 3. Spectrum inversion(According to the tuner configuration)
+ /* 3. Spectrum inversion(According to the tuner configuration) */
ret = lgdt3306a_set_inversion(state, 1);
if (lg_chkerr(ret))
goto fail;
- // 4. Peak-to-peak voltage of ADC input signal
- ret = lgdt3306a_set_reg_bit(state, 0x0004, 7, 1); //ADCSEL1V=0x80=1Vpp; 0x00=2Vpp
+ /* 4. Peak-to-peak voltage of ADC input signal */
+ ret = lgdt3306a_set_reg_bit(state, 0x0004, 7, 1); /* ADCSEL1V=0x80=1Vpp; 0x00=2Vpp */
if (lg_chkerr(ret))
goto fail;
- // 5. ADC output data capture clock phase
- ret = lgdt3306a_set_reg_bit(state, 0x0004, 2, 0); //0=same phase as ADC clock
+ /* 5. ADC output data capture clock phase */
+ ret = lgdt3306a_set_reg_bit(state, 0x0004, 2, 0); /* 0=same phase as ADC clock */
if (lg_chkerr(ret))
goto fail;
- // 5a. ADC sampling clock source
- ret = lgdt3306a_set_reg_bit(state, 0x0004, 3, 0); //ADCCLKPLLSEL=0x08; 0=use ext clock, not PLL
+ /* 5a. ADC sampling clock source */
+ ret = lgdt3306a_set_reg_bit(state, 0x0004, 3, 0); /* ADCCLKPLLSEL=0x08; 0=use ext clock, not PLL */
if (lg_chkerr(ret))
goto fail;
- // 6. Automatic PLL set
- ret = lgdt3306a_set_reg_bit(state, 0x0005, 6, 0); //PLLSETAUTO=0x40; 0=off
+ /* 6. Automatic PLL set */
+ ret = lgdt3306a_set_reg_bit(state, 0x0005, 6, 0); /* PLLSETAUTO=0x40; 0=off */
if (lg_chkerr(ret))
goto fail;
- if (state->cfg->xtalMHz == 24){ // 24MHz
- // 7. Frequency for PLL output(0x2564 for 192MHz for 24MHz)
+ if (state->cfg->xtalMHz == 24) { /* 24MHz */
+ /* 7. Frequency for PLL output(0x2564 for 192MHz for 24MHz) */
ret = lgdt3306a_read_reg(state, 0x0005, &val);
if (lg_chkerr(ret))
goto fail;
@@ -834,7 +839,7 @@ static int lgdt3306a_init(struct dvb_frontend *fe)
if (lg_chkerr(ret))
goto fail;
- // 8. ADC sampling frequency(0x180000 for 24MHz sampling)
+ /* 8. ADC sampling frequency(0x180000 for 24MHz sampling) */
ret = lgdt3306a_read_reg(state, 0x000D, &val);
if (lg_chkerr(ret))
goto fail;
@@ -844,8 +849,8 @@ static int lgdt3306a_init(struct dvb_frontend *fe)
if (lg_chkerr(ret))
goto fail;
- } else if (state->cfg->xtalMHz == 25){// 25MHz
- // 7. Frequency for PLL output
+ } else if (state->cfg->xtalMHz == 25) { /* 25MHz */
+ /* 7. Frequency for PLL output */
ret = lgdt3306a_read_reg(state, 0x0005, &val);
if (lg_chkerr(ret))
goto fail;
@@ -858,7 +863,7 @@ static int lgdt3306a_init(struct dvb_frontend *fe)
if (lg_chkerr(ret))
goto fail;
- // 8. ADC sampling frequency(0x190000 for 25MHz sampling)
+ /* 8. ADC sampling frequency(0x190000 for 25MHz sampling) */
ret = lgdt3306a_read_reg(state, 0x000D, &val);
if (lg_chkerr(ret))
goto fail;
@@ -870,54 +875,56 @@ static int lgdt3306a_init(struct dvb_frontend *fe)
} else {
lg_err("Bad xtalMHz=%d\n", state->cfg->xtalMHz);
}
-// ret = lgdt3306a_write_reg(state, 0x000E, 0x00);
-// ret = lgdt3306a_write_reg(state, 0x000F, 0x00);
+#if 0
+ ret = lgdt3306a_write_reg(state, 0x000E, 0x00);
+ ret = lgdt3306a_write_reg(state, 0x000F, 0x00);
+#endif
- // 9. Center frequency of input signal of ADC
- ret = lgdt3306a_write_reg(state, 0x0010, 0x34); //3.25MHz
- ret = lgdt3306a_write_reg(state, 0x0011, 0x00);
+ /* 9. Center frequency of input signal of ADC */
+ ret = lgdt3306a_write_reg(state, 0x0010, 0x34); /* 3.25MHz */
+ ret = lgdt3306a_write_reg(state, 0x0011, 0x00);
- // 10. Fixed gain error value
- ret = lgdt3306a_write_reg(state, 0x0014, 0); //gain error=0
+ /* 10. Fixed gain error value */
+ ret = lgdt3306a_write_reg(state, 0x0014, 0); /* gain error=0 */
- // 10a. VSB TR BW gear shift initial step
+ /* 10a. VSB TR BW gear shift initial step */
ret = lgdt3306a_read_reg(state, 0x103C, &val);
val &= 0x0F;
- val |= 0x20; //SAMGSAUTOSTL_V[3:0] = 2
+ val |= 0x20; /* SAMGSAUTOSTL_V[3:0] = 2 */
ret = lgdt3306a_write_reg(state, 0x103C, val);
- // 10b. Timing offset calibration in low temperature for VSB
+ /* 10b. Timing offset calibration in low temperature for VSB */
ret = lgdt3306a_read_reg(state, 0x103D, &val);
val &= 0xFC;
val |= 0x03;
ret = lgdt3306a_write_reg(state, 0x103D, val);
- // 10c. Timing offset calibration in low temperature for QAM
+ /* 10c. Timing offset calibration in low temperature for QAM */
ret = lgdt3306a_read_reg(state, 0x1036, &val);
val &= 0xF0;
val |= 0x0C;
ret = lgdt3306a_write_reg(state, 0x1036, val);
- // 11. Using the imaginary part of CIR in CIR loading
+ /* 11. Using the imaginary part of CIR in CIR loading */
ret = lgdt3306a_read_reg(state, 0x211F, &val);
- val &= 0xEF; //do not use imaginary of CIR
+ val &= 0xEF; /* do not use imaginary of CIR */
ret = lgdt3306a_write_reg(state, 0x211F, val);
- // 12. Control of no signal detector function
+ /* 12. Control of no signal detector function */
ret = lgdt3306a_read_reg(state, 0x2849, &val);
- val &= 0xEF; //NOUSENOSIGDET=0, enable no signal detector
+ val &= 0xEF; /* NOUSENOSIGDET=0, enable no signal detector */
ret = lgdt3306a_write_reg(state, 0x2849, val);
- //FGR - put demod in some known mode
+ /* FGR - put demod in some known mode */
ret = lgdt3306a_set_vsb(state);
- // 13. TP stream format
+ /* 13. TP stream format */
ret = lgdt3306a_mpeg_mode(state, state->cfg->mpeg_mode);
- // 14. disable output buses
+ /* 14. disable output buses */
ret = lgdt3306a_mpeg_tristate(state, 1);
- // 15. Sleep (in reset)
+ /* 15. Sleep (in reset) */
ret = lgdt3306a_sleep(state);
lg_chkerr(ret);
@@ -933,15 +940,15 @@ static int lgdt3306a_set_parameters(struct dvb_frontend *fe)
lg_dbg("(%d, %d)\n", p->frequency, p->modulation);
- if(state->current_frequency == p->frequency &&
- state->current_modulation == p->modulation ){
+ if (state->current_frequency == p->frequency &&
+ state->current_modulation == p->modulation) {
lg_dbg(" (already set, skipping ...)\n");
return 0;
}
state->current_frequency = -1;
state->current_modulation = -1;
- ret = lgdt3306a_power(state, 1); //power up
+ ret = lgdt3306a_power(state, 1); /* power up */
if (lg_chkerr(ret))
goto fail;
@@ -949,9 +956,11 @@ static int lgdt3306a_set_parameters(struct dvb_frontend *fe)
ret = fe->ops.tuner_ops.set_params(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
-// if (lg_chkerr(ret))
-// goto fail;
-// state->current_frequency = p->frequency;
+#if 0
+ if (lg_chkerr(ret))
+ goto fail;
+ state->current_frequency = p->frequency;
+#endif
}
ret = lgdt3306a_set_modulation(state, p);
@@ -967,7 +976,7 @@ static int lgdt3306a_set_parameters(struct dvb_frontend *fe)
goto fail;
ret = lgdt3306a_spectral_inversion(state, p,
- state->cfg->spectral_inversion? 1 : 0);
+ state->cfg->spectral_inversion ? 1 : 0);
if (lg_chkerr(ret))
goto fail;
@@ -981,7 +990,7 @@ static int lgdt3306a_set_parameters(struct dvb_frontend *fe)
if (lg_chkerr(ret))
goto fail;
- ret = lgdt3306a_mpeg_tristate(state, 0); //enable data bus
+ ret = lgdt3306a_mpeg_tristate(state, 0); /* enable data bus */
if (lg_chkerr(ret))
goto fail;
@@ -1023,8 +1032,8 @@ static void lgdt3306a_monitor_vsb(struct lgdt3306a_state *state)
{
u8 val;
int ret;
- u8 snrRef, maxPowerMan, nCombDet;
- u16 fbDlyCir;
+ u8 snrRef, maxPowerMan, nCombDet;
+ u16 fbDlyCir;
ret = lgdt3306a_read_reg(state, 0x21A1, &val);
snrRef = val & 0x3F;
@@ -1042,26 +1051,26 @@ static void lgdt3306a_monitor_vsb(struct lgdt3306a_state *state)
lg_dbg("snrRef=%d maxPowerMan=0x%x nCombDet=%d fbDlyCir=0x%x\n",
snrRef, maxPowerMan, nCombDet, fbDlyCir);
- //Carrier offset sub loop bandwidth
+ /* Carrier offset sub loop bandwidth */
ret = lgdt3306a_read_reg(state, 0x1061, &val);
val &= 0xF8;
if ((snrRef > 18) && (maxPowerMan > 0x68) && (nCombDet == 0x01) && ((fbDlyCir == 0x03FF) || (fbDlyCir < 0x6C))) {
- //SNR is over 18dB and no ghosting
- val |= 0x00; //final bandwidth = 0
+ /* SNR is over 18dB and no ghosting */
+ val |= 0x00; /* final bandwidth = 0 */
} else {
- val |= 0x04; //final bandwidth = 4
+ val |= 0x04; /* final bandwidth = 4 */
}
ret = lgdt3306a_write_reg(state, 0x1061, val);
- // Adjust Notch Filter
+ /* Adjust Notch Filter */
ret = lgdt3306a_read_reg(state, 0x0024, &val);
val &= 0x0F;
- if (nCombDet == 0){ // Turn on the Notch Filter
+ if (nCombDet == 0) { /* Turn on the Notch Filter */
val |= 0x50;
}
ret = lgdt3306a_write_reg(state, 0x0024, val);
- //VSB Timing Recovery output normalization
+ /* VSB Timing Recovery output normalization */
ret = lgdt3306a_read_reg(state, 0x103D, &val);
val &= 0xCF;
val |= 0x20;
@@ -1077,21 +1086,21 @@ static LG3306_MODULATION lgdt3306a_check_oper_mode(struct lgdt3306a_state *state
if (val & 0x80) {
lg_dbg("VSB\n");
- return(LG3306_VSB);
+ return LG3306_VSB;
}
else if (val & 0x08) {
ret = lgdt3306a_read_reg(state, 0x00A6, &val);
val = val >> 2;
if (val & 0x01) {
lg_dbg("QAM256\n");
- return(LG3306_QAM256);
+ return LG3306_QAM256;
} else {
lg_dbg("QAM64\n");
- return(LG3306_QAM64);
+ return LG3306_QAM64;
}
}
lg_warn("UNKNOWN\n");
- return(LG3306_UNKNOWN_MODE);
+ return LG3306_UNKNOWN_MODE;
}
static LG3306_LOCK_STATUS lgdt3306a_check_lock_status(struct lgdt3306a_state *state,
@@ -1104,76 +1113,71 @@ static LG3306_LOCK_STATUS lgdt3306a_check_lock_status(struct lgdt3306a_state *st
modeOper = LG3306_UNKNOWN_MODE;
- switch (whatLock)
+ switch (whatLock) {
+ case LG3306_SYNC_LOCK:
+ {
+ ret = lgdt3306a_read_reg(state, 0x00A6, &val);
+
+ if ((val & 0x80) == 0x80)
+ lockStatus = LG3306_LOCK;
+ else
+ lockStatus = LG3306_UNLOCK;
+
+ lg_dbg("SYNC_LOCK=%x\n", lockStatus);
+ break;
+ }
+ case LG3306_AGC_LOCK:
+ {
+ ret = lgdt3306a_read_reg(state, 0x0080, &val);
+
+ if ((val & 0x40) == 0x40)
+ lockStatus = LG3306_LOCK;
+ else
+ lockStatus = LG3306_UNLOCK;
+
+ lg_dbg("AGC_LOCK=%x\n", lockStatus);
+ break;
+ }
+ case LG3306_TR_LOCK:
{
- case LG3306_SYNC_LOCK :
- {
- ret = lgdt3306a_read_reg(state, 0x00A6, &val);
+ modeOper = lgdt3306a_check_oper_mode(state);
+ if ((modeOper == LG3306_QAM64) || (modeOper == LG3306_QAM256)) {
+ ret = lgdt3306a_read_reg(state, 0x1094, &val);
if ((val & 0x80) == 0x80)
lockStatus = LG3306_LOCK;
else
lockStatus = LG3306_UNLOCK;
+ } else
+ lockStatus = LG3306_UNKNOWN_LOCK;
- lg_dbg("SYNC_LOCK=%x\n", lockStatus);
- break;
- }
- case LG3306_AGC_LOCK :
- {
+ lg_dbg("TR_LOCK=%x\n", lockStatus);
+ break;
+ }
+ case LG3306_FEC_LOCK:
+ {
+ modeOper = lgdt3306a_check_oper_mode(state);
+ if ((modeOper == LG3306_QAM64) || (modeOper == LG3306_QAM256)) {
ret = lgdt3306a_read_reg(state, 0x0080, &val);
- if ((val & 0x40) == 0x40)
+ if ((val & 0x10) == 0x10)
lockStatus = LG3306_LOCK;
else
lockStatus = LG3306_UNLOCK;
+ } else
+ lockStatus = LG3306_UNKNOWN_LOCK;
- lg_dbg("AGC_LOCK=%x\n", lockStatus);
- break;
- }
- case LG3306_TR_LOCK :
- {
- modeOper = lgdt3306a_check_oper_mode(state);
- if ((modeOper == LG3306_QAM64) || (modeOper == LG3306_QAM256))
- {
- ret = lgdt3306a_read_reg(state, 0x1094, &val);
-
- if ((val & 0x80) == 0x80)
- lockStatus = LG3306_LOCK;
- else
- lockStatus = LG3306_UNLOCK;
- }
- else
- lockStatus = LG3306_UNKNOWN_LOCK;
-
- lg_dbg("TR_LOCK=%x\n", lockStatus);
- break;
- }
- case LG3306_FEC_LOCK :
- {
- modeOper = lgdt3306a_check_oper_mode(state);
- if ((modeOper == LG3306_QAM64) || (modeOper == LG3306_QAM256))
- {
- ret = lgdt3306a_read_reg(state, 0x0080, &val);
-
- if ((val & 0x10) == 0x10)
- lockStatus = LG3306_LOCK;
- else
- lockStatus = LG3306_UNLOCK;
- }
- else
- lockStatus = LG3306_UNKNOWN_LOCK;
-
- lg_dbg("FEC_LOCK=%x\n", lockStatus);
- break;
- }
+ lg_dbg("FEC_LOCK=%x\n", lockStatus);
+ break;
+ }
- default :
- lockStatus = LG3306_UNKNOWN_LOCK;
- lg_warn("UNKNOWN whatLock=%d\n", whatLock);
- break;
+ default:
+ lockStatus = LG3306_UNKNOWN_LOCK;
+ lg_warn("UNKNOWN whatLock=%d\n", whatLock);
+ break;
}
- return(lockStatus);
+ return lockStatus;
}
static LG3306_NEVERLOCK_STATUS lgdt3306a_check_neverlock_status(struct lgdt3306a_state *state)
@@ -1187,7 +1191,7 @@ static LG3306_NEVERLOCK_STATUS lgdt3306a_check_neverlock_status(struct lgdt3306a
lg_dbg("NeverLock=%d", lockStatus);
- return(lockStatus);
+ return lockStatus;
}
static void lgdt3306a_pre_monitoring(struct lgdt3306a_state *state)
@@ -1196,14 +1200,14 @@ static void lgdt3306a_pre_monitoring(struct lgdt3306a_state *state)
int ret;
u8 currChDiffACQ, snrRef, mainStrong, aiccrejStatus;
- //Channel variation
+ /* Channel variation */
ret = lgdt3306a_read_reg(state, 0x21BC, &currChDiffACQ);
- //SNR of Frame sync
+ /* SNR of Frame sync */
ret = lgdt3306a_read_reg(state, 0x21A1, &val);
snrRef = val & 0x3F;
- //Strong Main CIR
+ /* Strong Main CIR */
ret = lgdt3306a_read_reg(state, 0x2199, &val);
mainStrong = (val & 0x40) >> 6;
@@ -1213,9 +1217,10 @@ static void lgdt3306a_pre_monitoring(struct lgdt3306a_state *state)
lg_dbg("snrRef=%d mainStrong=%d aiccrejStatus=%d currChDiffACQ=0x%x\n",
snrRef, mainStrong, aiccrejStatus, currChDiffACQ);
-// if ((mainStrong == 0) && (currChDiffACQ > 0x70)) //Dynamic ghost exists
- if (mainStrong == 0)
- {
+#if 0
+ if ((mainStrong == 0) && (currChDiffACQ > 0x70)) /* Dynamic ghost exists */
+#endif
+ if (mainStrong == 0) {
ret = lgdt3306a_read_reg(state, 0x2135, &val);
val &= 0x0F;
val |= 0xA0;
@@ -1227,9 +1232,7 @@ static void lgdt3306a_pre_monitoring(struct lgdt3306a_state *state)
ret = lgdt3306a_write_reg(state, 0x2141, val);
ret = lgdt3306a_write_reg(state, 0x2122, 0x70);
- }
- else // Weak ghost or static channel
- {
+ } else { /* Weak ghost or static channel */
ret = lgdt3306a_read_reg(state, 0x2135, &val);
val &= 0x0F;
val |= 0x70;
@@ -1247,7 +1250,7 @@ static void lgdt3306a_pre_monitoring(struct lgdt3306a_state *state)
static LG3306_LOCK_STATUS lgdt3306a_sync_lock_poll(struct lgdt3306a_state *state)
{
- LG3306_LOCK_STATUS syncLockStatus = LG3306_UNLOCK;
+ LG3306_LOCK_STATUS syncLockStatus = LG3306_UNLOCK;
int i;
for (i = 0; i < 2; i++) {
@@ -1257,11 +1260,11 @@ static LG3306_LOCK_STATUS lgdt3306a_sync_lock_poll(struct lgdt3306a_state *state
if (syncLockStatus == LG3306_LOCK) {
lg_dbg("locked(%d)\n", i);
- return(LG3306_LOCK);
+ return LG3306_LOCK;
}
}
lg_dbg("not locked\n");
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
}
static LG3306_LOCK_STATUS lgdt3306a_fec_lock_poll(struct lgdt3306a_state *state)
@@ -1276,11 +1279,11 @@ static LG3306_LOCK_STATUS lgdt3306a_fec_lock_poll(struct lgdt3306a_state *state)
if (FECLockStatus == LG3306_LOCK) {
lg_dbg("locked(%d)\n", i);
- return(FECLockStatus);
+ return FECLockStatus;
}
}
lg_dbg("not locked\n");
- return(FECLockStatus);
+ return FECLockStatus;
}
static LG3306_NEVERLOCK_STATUS lgdt3306a_neverlock_poll(struct lgdt3306a_state *state)
@@ -1288,18 +1291,18 @@ static LG3306_NEVERLOCK_STATUS lgdt3306a_neverlock_poll(struct lgdt3306a_state *
LG3306_NEVERLOCK_STATUS NLLockStatus = LG3306_NL_FAIL;
int i;
- for (i = 0; i < 5; i++){
+ for (i = 0; i < 5; i++) {
msleep(30);
NLLockStatus = lgdt3306a_check_neverlock_status(state);
if (NLLockStatus == LG3306_NL_LOCK) {
lg_dbg("NL_LOCK(%d)\n", i);
- return(NLLockStatus);
+ return NLLockStatus;
}
}
lg_dbg("NLLockStatus=%d\n", NLLockStatus);
- return(NLLockStatus);
+ return NLLockStatus;
}
static u8 lgdt3306a_get_packet_error(struct lgdt3306a_state *state)
@@ -1309,49 +1312,51 @@ static u8 lgdt3306a_get_packet_error(struct lgdt3306a_state *state)
ret = lgdt3306a_read_reg(state, 0x00FA, &val);
- return(val);
+ return val;
}
static u32 log10_x1000(u32 x)
{
- static u32 valx_x10[] = { 10, 11, 13, 15, 17, 20, 25, 33, 41, 50, 59, 73, 87, 100 };
- static u32 log10x_x1000[] = { 0, 41, 114, 176, 230, 301, 398, 518, 613, 699, 771, 863, 939, 1000 };
- static u32 nelems = sizeof(valx_x10)/sizeof(valx_x10[0]);
+ static u32 valx_x10[] = { 10, 11, 13, 15, 17, 20, 25, 33, 41, 50, 59, 73, 87, 100 };
+ static u32 log10x_x1000[] = { 0, 41, 114, 176, 230, 301, 398, 518, 613, 699, 771, 863, 939, 1000 };
+ static u32 nelems = sizeof(valx_x10)/sizeof(valx_x10[0]);
u32 log_val = 0;
- u32 i;
+ u32 i;
- if (x<=0)
- return -1000000;//signal error
+ if (x <= 0)
+ return -1000000; /* signal error */
- if (x<10) {
- while (x<10) {
- x = x*10;
+ if (x < 10) {
+ while (x < 10) {
+ x = x * 10;
log_val--;
}
- } else if (x==10) {
- return 0; //log(1)=0
+ } else if (x == 10) {
+ return 0; /* log(1)=0 */
} else {
- while (x>=100) {
- x = x/10;
+ while (x >= 100) {
+ x = x / 10;
log_val++;
}
- }
+ }
log_val *= 1000;
- if (x==10) //was our input an exact multiple of 10
- return log_val; //don't need to interpolate
+ if (x == 10) /* was our input an exact multiple of 10 */
+ return log_val; /* don't need to interpolate */
- //find our place on the log curve
- for (i=1; i < nelems; i++){
- if (valx_x10[i] >= x) break;
+ /* find our place on the log curve */
+ for (i = 1; i < nelems; i++) {
+ if (valx_x10[i] >= x)
+ break;
}
{
u32 diff_val = x - valx_x10[i-1];
u32 step_val = valx_x10[i] - valx_x10[i-1];
u32 step_log10 = log10x_x1000[i] - log10x_x1000[i-1];
- //do a linear interpolation to get in-between values
- return log_val + log10x_x1000[i-1] + ((diff_val*step_log10)/step_val);
+ /* do a linear interpolation to get in-between values */
+ return log_val + log10x_x1000[i-1] +
+ ((diff_val*step_log10) / step_val);
}
}
@@ -1369,7 +1374,7 @@ static u32 lgdt3306a_calculate_snr_x100(struct lgdt3306a_state *state)
if (mse == 0) /* no signal */
return 0;
- snr_x100 = log10_x1000((pwr*10000)/mse) - 3000;
+ snr_x100 = log10_x1000((pwr * 10000) / mse) - 3000;
lg_dbg("mse=%u, pwr=%u, snr_x100=%d\n", mse, pwr, snr_x100);
return snr_x100;
@@ -1377,35 +1382,35 @@ static u32 lgdt3306a_calculate_snr_x100(struct lgdt3306a_state *state)
static LG3306_LOCK_STATUS lgdt3306a_vsb_lock_poll(struct lgdt3306a_state *state)
{
- u8 cnt = 0;
- u8 packet_error;
- u32 snr;
+ u8 cnt = 0;
+ u8 packet_error;
+ u32 snr;
- while(1) {
+ while (1) {
if (lgdt3306a_sync_lock_poll(state) == LG3306_UNLOCK) {
lg_dbg("no sync lock!\n");
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
} else {
msleep(20);
lgdt3306a_pre_monitoring(state);
packet_error = lgdt3306a_get_packet_error(state);
snr = lgdt3306a_calculate_snr_x100(state);
- lg_dbg("cnt=%d errors=%d snr=%d\n", cnt, packet_error, snr);
+ lg_dbg("cnt=%d errors=%d snr=%d\n",
+ cnt, packet_error, snr);
- if((snr < 1500) || (packet_error >= 0xff)) {
+ if ((snr < 1500) || (packet_error >= 0xff))
cnt++;
- } else {
- return(LG3306_LOCK);
- }
+ else
+ return LG3306_LOCK;
- if(cnt >= 10) {
+ if (cnt >= 10) {
lg_dbg("not locked!\n");
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
}
}
}
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
}
static LG3306_LOCK_STATUS lgdt3306a_qam_lock_poll(struct lgdt3306a_state *state)
@@ -1414,41 +1419,41 @@ static LG3306_LOCK_STATUS lgdt3306a_qam_lock_poll(struct lgdt3306a_state *state)
u8 packet_error;
u32 snr;
- while(1) {
- if(lgdt3306a_fec_lock_poll(state) == LG3306_UNLOCK) {
+ while (1) {
+ if (lgdt3306a_fec_lock_poll(state) == LG3306_UNLOCK) {
lg_dbg("no fec lock!\n");
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
} else {
msleep(20);
packet_error = lgdt3306a_get_packet_error(state);
snr = lgdt3306a_calculate_snr_x100(state);
- lg_dbg("cnt=%d errors=%d snr=%d\n", cnt, packet_error, snr);
+ lg_dbg("cnt=%d errors=%d snr=%d\n",
+ cnt, packet_error, snr);
- if((snr < 1500) || (packet_error >= 0xff)) {
+ if ((snr < 1500) || (packet_error >= 0xff))
cnt++;
- } else {
- return(LG3306_LOCK);
- }
+ else
+ return LG3306_LOCK;
- if(cnt >= 10) {
+ if (cnt >= 10) {
lg_dbg("not locked!\n");
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
}
}
}
- return(LG3306_UNLOCK);
+ return LG3306_UNLOCK;
}
static int lgdt3306a_read_status(struct dvb_frontend *fe, fe_status_t *status)
{
- int ret = 0;
struct lgdt3306a_state *state = fe->demodulator_priv;
-
u16 strength = 0;
+ int ret = 0;
+
if (fe->ops.tuner_ops.get_rf_strength) {
ret = fe->ops.tuner_ops.get_rf_strength(fe, &strength);
- if (ret==0) {
+ if (ret == 0) {
lg_dbg("strength=%d\n", strength);
} else {
lg_dbg("fe->ops.tuner_ops.get_rf_strength() failed\n");
@@ -1456,14 +1461,14 @@ static int lgdt3306a_read_status(struct dvb_frontend *fe, fe_status_t *status)
}
*status = 0;
- if(lgdt3306a_neverlock_poll(state) == LG3306_NL_LOCK) {
+ if (lgdt3306a_neverlock_poll(state) == LG3306_NL_LOCK) {
*status |= FE_HAS_SIGNAL;
*status |= FE_HAS_CARRIER;
switch (state->current_modulation) {
case QAM_256:
case QAM_64:
- if(lgdt3306a_qam_lock_poll(state) == LG3306_LOCK){
+ if (lgdt3306a_qam_lock_poll(state) == LG3306_LOCK) {
*status |= FE_HAS_VITERBI;
*status |= FE_HAS_SYNC;
@@ -1471,7 +1476,7 @@ static int lgdt3306a_read_status(struct dvb_frontend *fe, fe_status_t *status)
}
break;
case VSB_8:
- if(lgdt3306a_vsb_lock_poll(state) == LG3306_LOCK){
+ if (lgdt3306a_vsb_lock_poll(state) == LG3306_LOCK) {
*status |= FE_HAS_VITERBI;
*status |= FE_HAS_SYNC;
@@ -1506,22 +1511,22 @@ static int lgdt3306a_read_signal_strength(struct dvb_frontend *fe,
* Calculate some sort of "strength" from SNR
*/
struct lgdt3306a_state *state = fe->demodulator_priv;
- u16 snr; //snr_x10
+ u16 snr; /* snr_x10 */
int ret;
- u32 ref_snr; //snr*100
+ u32 ref_snr; /* snr*100 */
u32 str;
*strength = 0;
switch (state->current_modulation) {
case VSB_8:
- ref_snr = 1600; //16dB
+ ref_snr = 1600; /* 16dB */
break;
case QAM_64:
- ref_snr = 2200; //22dB
+ ref_snr = 2200; /* 22dB */
break;
case QAM_256:
- ref_snr = 2800; //28dB
+ ref_snr = 2800; /* 28dB */
break;
default:
return -EINVAL;
@@ -1531,15 +1536,15 @@ static int lgdt3306a_read_signal_strength(struct dvb_frontend *fe,
if (lg_chkerr(ret))
goto fail;
- if(state->snr <= (ref_snr-100))
+ if (state->snr <= (ref_snr - 100))
str = 0;
- else if(state->snr <= ref_snr)
- str = (0xffff*65) / 100; //65%
+ else if (state->snr <= ref_snr)
+ str = (0xffff * 65) / 100; /* 65% */
else {
str = state->snr - ref_snr;
str /= 50;
- str += 78; //78%-100%
- if(str > 100)
+ str += 78; /* 78%-100% */
+ if (str > 100)
str = 100;
str = (0xffff * str) / 100;
}
@@ -1559,12 +1564,12 @@ static int lgdt3306a_read_ber(struct dvb_frontend *fe, u32 *ber)
*ber = 0;
#if 1
- //FGR - BUGBUG - I don't know what value is expected by dvb_core
- // what is the scale of the value??
- tmp = read_reg(state, 0x00FC);//NBERVALUE[24-31]
- tmp = (tmp<<8) | read_reg(state, 0x00FD);//NBERVALUE[16-23]
- tmp = (tmp<<8) | read_reg(state, 0x00FE);//NBERVALUE[8-15]
- tmp = (tmp<<8) | read_reg(state, 0x00FF);//NBERVALUE[0-7]
+ /* FGR - BUGBUG - I don't know what value is expected by dvb_core
+ * what is the scale of the value?? */
+ tmp = read_reg(state, 0x00FC); /* NBERVALUE[24-31] */
+ tmp = (tmp << 8) | read_reg(state, 0x00FD); /* NBERVALUE[16-23] */
+ tmp = (tmp << 8) | read_reg(state, 0x00FE); /* NBERVALUE[8-15] */
+ tmp = (tmp << 8) | read_reg(state, 0x00FF); /* NBERVALUE[0-7] */
*ber = tmp;
lg_dbg("ber=%u\n", tmp);
#endif
@@ -1575,11 +1580,11 @@ static int lgdt3306a_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct lgdt3306a_state *state = fe->demodulator_priv;
- *ucblocks = 0;
+ *ucblocks = 0;
#if 1
- //FGR - BUGBUG - I don't know what value is expected by dvb_core
- // what happens when value wraps?
- *ucblocks = read_reg(state, 0x00F4);//TPIFTPERRCNT[0-7]
+ /* FGR - BUGBUG - I don't know what value is expected by dvb_core
+ * what happens when value wraps? */
+ *ucblocks = read_reg(state, 0x00F4); /* TPIFTPERRCNT[0-7] */
lg_dbg("ucblocks=%u\n", *ucblocks);
#endif
@@ -1594,10 +1599,9 @@ static int lgdt3306a_tune(struct dvb_frontend *fe, bool re_tune, unsigned int mo
lg_dbg("re_tune=%u\n", re_tune);
if (re_tune) {
- state->current_frequency = -1; //force re-tune
- if ((ret = lgdt3306a_set_parameters(fe)) != 0) {
+ state->current_frequency = -1; /* force re-tune */
+ if ((ret = lgdt3306a_set_parameters(fe)) != 0)
return ret;
- }
}
*delay = 125;
ret = lgdt3306a_read_status(fe, status);
@@ -1606,8 +1610,8 @@ static int lgdt3306a_tune(struct dvb_frontend *fe, bool re_tune, unsigned int mo
}
static int lgdt3306a_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings
- *fe_tune_settings)
+ struct dvb_frontend_tune_settings
+ *fe_tune_settings)
{
fe_tune_settings->min_delay_ms = 100;
lg_dbg("\n");
@@ -1637,11 +1641,10 @@ static int lgdt3306a_search(struct dvb_frontend *fe)
}
/* check if we have a valid signal */
- if (status & FE_HAS_LOCK) {
+ if (status & FE_HAS_LOCK)
return DVBFE_ALGO_SEARCH_SUCCESS;
- } else {
+ else
return DVBFE_ALGO_SEARCH_AGAIN;
- }
error:
lg_dbg("failed (%d)\n", ret);
@@ -1651,6 +1654,7 @@ error:
static void lgdt3306a_release(struct dvb_frontend *fe)
{
struct lgdt3306a_state *state = fe->demodulator_priv;
+
lg_dbg("\n");
kfree(state);
}
@@ -1680,28 +1684,34 @@ struct dvb_frontend *lgdt3306a_attach(const struct lgdt3306a_config *config,
state->frontend.demodulator_priv = state;
/* verify that we're talking to a lg3306a */
- //FGR - NOTE - there is no obvious ChipId to check; we check
- // some "known" bits after reset, but it's still just a guess
+ /* FGR - NOTE - there is no obvious ChipId to check; we check
+ * some "known" bits after reset, but it's still just a guess */
ret = lgdt3306a_read_reg(state, 0x0000, &val);
if (lg_chkerr(ret))
goto fail;
- if((val & 0x74) != 0x74){
+ if ((val & 0x74) != 0x74) {
lg_warn("expected 0x74, got 0x%x\n", (val & 0x74));
-// goto fail; //BUGBUG - re-enable when we know this is right
+#if 0
+ goto fail; /* BUGBUG - re-enable when we know this is right */
+#endif
}
ret = lgdt3306a_read_reg(state, 0x0001, &val);
if (lg_chkerr(ret))
goto fail;
- if((val & 0xF6) != 0xC6){
+ if ((val & 0xF6) != 0xC6) {
lg_warn("expected 0xC6, got 0x%x\n", (val & 0xF6));
-// goto fail; //BUGBUG - re-enable when we know this is right
+#if 0
+ goto fail; /* BUGBUG - re-enable when we know this is right */
+#endif
}
ret = lgdt3306a_read_reg(state, 0x0002, &val);
if (lg_chkerr(ret))
goto fail;
- if((val & 0x73) != 0x03){
+ if ((val & 0x73) != 0x03) {
lg_warn("expected 0x03, got 0x%x\n", (val & 0x73));
-// goto fail; //BUGBUG - re-enable when we know this is right
+#if 0
+ goto fail; /* BUGBUG - re-enable when we know this is right */
+#endif
}
state->current_frequency = -1;
@@ -1961,22 +1971,23 @@ static void lgdt3306a_DumpRegs(struct lgdt3306a_state *state)
{
int i;
int sav_debug = debug;
+
if ((debug & DBG_DUMP) == 0)
return;
- debug &= ~DBG_REG;//supress DBG_REG during reg dump
+ debug &= ~DBG_REG; /* supress DBG_REG during reg dump */
lg_info("\n");
- for(i=0; i<numDumpRegs; i++){
+ for (i = 0; i < numDumpRegs; i++) {
lgdt3306a_read_reg(state, regtab[i], &regval1[i]);
- if(regval1[i] != regval2[i]){
- lg_info(" %04X = %02X\n", regtab[i], regval1[i]);
- regval2[i] = regval1[i];
+ if (regval1[i] != regval2[i]) {
+ lg_info(" %04X = %02X\n", regtab[i], regval1[i]);
+ regval2[i] = regval1[i];
}
}
debug = sav_debug;
}
-#endif//DBG_DUMP
+#endif /* DBG_DUMP */
@@ -1986,10 +1997,11 @@ static struct dvb_frontend_ops lgdt3306a_ops = {
.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
.info = {
.name = "LG Electronics LGDT3306A VSB/QAM Frontend",
-// .type = FE_ATSC,
+#if 0
+ .type = FE_ATSC,
+#endif
.frequency_min = 54000000,
- .frequency_max = 858000000, //FGR - BUGBUG - why does the demod have a freq limit??
- // also, it's too high for ATSC Ch 52, and too low for Ch 158 Cable
+ .frequency_max = 858000000,
.frequency_stepsize = 62500,
.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
},
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 08:32:43 +0100