Re: [PATCH 4/4] si2165: Add DVB-C support for HVR-4400/HVR-5500

2015-11-22 Thread Matthias Schwarzott
Am 19.11.2015 um 14:28 schrieb Mauro Carvalho Chehab:
> Em Fri, 13 Nov 2015 23:54:58 +0100
> Matthias Schwarzott  escreveu:
> 
>> It works only for HVR-4400/HVR-5500.
>> For WinTV-HVR-930C-HD it fails with bad/no reception
>> for unknown reasons.
> 
> Patch 3/4 of this series is broken. As this one depends on it, please
> resend both patches 3 and 4 on your next patch series.
> 
> Regards,
> Mauro
> 
> PS.: patches 1 and 2 are ok and got applied upstream already.
> 
> 
Hi Mauro,

if you did not notice, I split the patches down into more parts,
improved them a bit and sent them with subject "si2165: Add simple DVB-C
support".

Regards
Matthias

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Re: [PATCH 4/4] si2165: Add DVB-C support for HVR-4400/HVR-5500

2015-11-19 Thread Mauro Carvalho Chehab
Em Fri, 13 Nov 2015 23:54:58 +0100
Matthias Schwarzott  escreveu:

> It works only for HVR-4400/HVR-5500.
> For WinTV-HVR-930C-HD it fails with bad/no reception
> for unknown reasons.

Patch 3/4 of this series is broken. As this one depends on it, please
resend both patches 3 and 4 on your next patch series.

Regards,
Mauro

PS.: patches 1 and 2 are ok and got applied upstream already.


> 
> Signed-off-by: Matthias Schwarzott 
> ---
>  drivers/media/dvb-frontends/si2165.c | 132 
> +++
>  1 file changed, 120 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/media/dvb-frontends/si2165.c 
> b/drivers/media/dvb-frontends/si2165.c
> index c87d927..97a6eac 100644
> --- a/drivers/media/dvb-frontends/si2165.c
> +++ b/drivers/media/dvb-frontends/si2165.c
> @@ -760,7 +760,7 @@ static int si2165_set_oversamp(struct si2165_state 
> *state, u32 dvb_rate)
>   do_div(oversamp, dvb_rate);
>   reg_value = oversamp & 0x3fff;
>  
> - /* oversamp, usbdump contained 0x0310; */
> + dprintk("%s: Write oversamp=%#x\n", __func__, reg_value);
>   return si2165_writereg32(state, 0x00e4, reg_value);
>  }
>  
> @@ -823,7 +823,7 @@ static const struct si2165_reg_value_pair dvbt_regs[] = {
>   { 0x0387, 0x00 }
>  };
>  
> -static int si2165_set_parameters(struct dvb_frontend *fe)
> +static int si2165_set_frontend_dvbt(struct dvb_frontend *fe)
>  {
>   int ret;
>   struct dtv_frontend_properties *p = &fe->dtv_property_cache;
> @@ -851,9 +851,6 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
>   if (ret < 0)
>   return ret;
>  
> - ret = si2165_set_if_freq_shift(state);
> - if (ret < 0)
> - return ret;
>   ret = si2165_writereg8(state, 0x08f8, 0x00);
>   if (ret < 0)
>   return ret;
> @@ -874,6 +871,110 @@ static int si2165_set_parameters(struct dvb_frontend 
> *fe)
>   if (ret < 0)
>   return ret;
>  
> + return 0;
> +}
> +
> +static const struct si2165_reg_value_pair dvbc_regs[] = {
> + /* agc2 */
> + { 0x016e, 0x50 },
> + { 0x016c, 0x0e },
> + { 0x016d, 0x10 },
> + /* agc */
> + { 0x015b, 0x03 },
> + { 0x0150, 0x68 },
> + /* agc */
> + { 0x01a0, 0x68 },
> + { 0x01c8, 0x50 },
> +
> + { 0x0278, 0x0d },
> +
> + { 0x023a, 0x05 },
> + { 0x0261, 0x09 },
> + REG16(0x0350, 0x3e80),
> + { 0x02f4, 0x00 }
> +};
> +
> +static int si2165_set_frontend_dvbc(struct dvb_frontend *fe)
> +{
> + struct si2165_state *state = fe->demodulator_priv;
> + int ret;
> + struct dtv_frontend_properties *p = &fe->dtv_property_cache;
> + const u32 dvb_rate = p->symbol_rate;
> + const u32 bw_hz = p->bandwidth_hz;
> +
> + if (!state->has_dvbc)
> + return -EINVAL;
> +
> + if (dvb_rate == 0)
> + return -EINVAL;
> +
> + /* standard = DVB-C */
> + ret = si2165_writereg8(state, 0x00ec, 0x05);
> + if (ret < 0)
> + return ret;
> + ret = si2165_adjust_pll_divl(state, 14);
> + if (ret < 0)
> + return ret;
> +
> + ret = si2165_writereg8(state, 0x08f8, 0x00);
> + if (ret < 0)
> + return ret;
> +
> + /* Oversampling */
> + ret = si2165_set_oversamp(state, dvb_rate);
> + if (ret < 0)
> + return ret;
> +
> + ret = si2165_write_reg_list(state, dvbc_regs, ARRAY_SIZE(dvbc_regs));
> + if (ret < 0)
> + return ret;
> +
> + /* dsp_addr_jump */
> + ret = si2165_writereg32(state, 0x0348, 0xf400);
> + if (ret < 0)
> + return ret;
> +
> + si2165_writereg32(state, 0x00c4, bw_hz);
> + si2165_writereg8(state, 0x00cb, 0x01);
> + si2165_writereg8(state, 0x00c0, 0x00);
> + si2165_writereg16(state, 0x024c, 0x);
> + si2165_writereg16(state, 0x027c, 0x);
> + si2165_writereg8(state, 0x0232, 0x03);
> + si2165_writereg8(state, 0x02f4, 0x0b);
> + si2165_writereg8(state, 0x00c0, 0x00);
> + si2165_writereg8(state, 0x018b, 0x00);
> +
> + return 0;
> +}
> +
> +static int si2165_set_frontend(struct dvb_frontend *fe)
> +{
> + struct si2165_state *state = fe->demodulator_priv;
> + struct dtv_frontend_properties *p = &fe->dtv_property_cache;
> + u32 delsys = p->delivery_system;
> + int ret;
> + u8 val[3];
> +
> + /* initial setting of if freq shift */
> + ret = si2165_set_if_freq_shift(state);
> + if (ret < 0)
> + return ret;
> +
> + switch (delsys) {
> + case SYS_DVBT:
> + ret = si2165_set_frontend_dvbt(fe);
> + if (ret < 0)
> + return ret;
> + break;
> + case SYS_DVBC_ANNEX_A:
> + ret = si2165_set_frontend_dvbc(fe);
> + if (ret < 0)
> + return ret;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
>   if (fe->ops.tuner_ops.set_params)
>   fe->ops.tuner

[PATCH 4/4] si2165: Add DVB-C support for HVR-4400/HVR-5500

2015-11-13 Thread Matthias Schwarzott
It works only for HVR-4400/HVR-5500.
For WinTV-HVR-930C-HD it fails with bad/no reception
for unknown reasons.

Signed-off-by: Matthias Schwarzott 
---
 drivers/media/dvb-frontends/si2165.c | 132 +++
 1 file changed, 120 insertions(+), 12 deletions(-)

diff --git a/drivers/media/dvb-frontends/si2165.c 
b/drivers/media/dvb-frontends/si2165.c
index c87d927..97a6eac 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -760,7 +760,7 @@ static int si2165_set_oversamp(struct si2165_state *state, 
u32 dvb_rate)
do_div(oversamp, dvb_rate);
reg_value = oversamp & 0x3fff;
 
-   /* oversamp, usbdump contained 0x0310; */
+   dprintk("%s: Write oversamp=%#x\n", __func__, reg_value);
return si2165_writereg32(state, 0x00e4, reg_value);
 }
 
@@ -823,7 +823,7 @@ static const struct si2165_reg_value_pair dvbt_regs[] = {
{ 0x0387, 0x00 }
 };
 
-static int si2165_set_parameters(struct dvb_frontend *fe)
+static int si2165_set_frontend_dvbt(struct dvb_frontend *fe)
 {
int ret;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
@@ -851,9 +851,6 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
if (ret < 0)
return ret;
 
-   ret = si2165_set_if_freq_shift(state);
-   if (ret < 0)
-   return ret;
ret = si2165_writereg8(state, 0x08f8, 0x00);
if (ret < 0)
return ret;
@@ -874,6 +871,110 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
if (ret < 0)
return ret;
 
+   return 0;
+}
+
+static const struct si2165_reg_value_pair dvbc_regs[] = {
+   /* agc2 */
+   { 0x016e, 0x50 },
+   { 0x016c, 0x0e },
+   { 0x016d, 0x10 },
+   /* agc */
+   { 0x015b, 0x03 },
+   { 0x0150, 0x68 },
+   /* agc */
+   { 0x01a0, 0x68 },
+   { 0x01c8, 0x50 },
+
+   { 0x0278, 0x0d },
+
+   { 0x023a, 0x05 },
+   { 0x0261, 0x09 },
+   REG16(0x0350, 0x3e80),
+   { 0x02f4, 0x00 }
+};
+
+static int si2165_set_frontend_dvbc(struct dvb_frontend *fe)
+{
+   struct si2165_state *state = fe->demodulator_priv;
+   int ret;
+   struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+   const u32 dvb_rate = p->symbol_rate;
+   const u32 bw_hz = p->bandwidth_hz;
+
+   if (!state->has_dvbc)
+   return -EINVAL;
+
+   if (dvb_rate == 0)
+   return -EINVAL;
+
+   /* standard = DVB-C */
+   ret = si2165_writereg8(state, 0x00ec, 0x05);
+   if (ret < 0)
+   return ret;
+   ret = si2165_adjust_pll_divl(state, 14);
+   if (ret < 0)
+   return ret;
+
+   ret = si2165_writereg8(state, 0x08f8, 0x00);
+   if (ret < 0)
+   return ret;
+
+   /* Oversampling */
+   ret = si2165_set_oversamp(state, dvb_rate);
+   if (ret < 0)
+   return ret;
+
+   ret = si2165_write_reg_list(state, dvbc_regs, ARRAY_SIZE(dvbc_regs));
+   if (ret < 0)
+   return ret;
+
+   /* dsp_addr_jump */
+   ret = si2165_writereg32(state, 0x0348, 0xf400);
+   if (ret < 0)
+   return ret;
+
+   si2165_writereg32(state, 0x00c4, bw_hz);
+   si2165_writereg8(state, 0x00cb, 0x01);
+   si2165_writereg8(state, 0x00c0, 0x00);
+   si2165_writereg16(state, 0x024c, 0x);
+   si2165_writereg16(state, 0x027c, 0x);
+   si2165_writereg8(state, 0x0232, 0x03);
+   si2165_writereg8(state, 0x02f4, 0x0b);
+   si2165_writereg8(state, 0x00c0, 0x00);
+   si2165_writereg8(state, 0x018b, 0x00);
+
+   return 0;
+}
+
+static int si2165_set_frontend(struct dvb_frontend *fe)
+{
+   struct si2165_state *state = fe->demodulator_priv;
+   struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+   u32 delsys = p->delivery_system;
+   int ret;
+   u8 val[3];
+
+   /* initial setting of if freq shift */
+   ret = si2165_set_if_freq_shift(state);
+   if (ret < 0)
+   return ret;
+
+   switch (delsys) {
+   case SYS_DVBT:
+   ret = si2165_set_frontend_dvbt(fe);
+   if (ret < 0)
+   return ret;
+   break;
+   case SYS_DVBC_ANNEX_A:
+   ret = si2165_set_frontend_dvbc(fe);
+   if (ret < 0)
+   return ret;
+   break;
+   default:
+   return -EINVAL;
+   }
+
if (fe->ops.tuner_ops.set_params)
fe->ops.tuner_ops.set_params(fe);
 
@@ -889,6 +990,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe)
ret = si2165_writereg8(state, 0x0341, 0x00);
if (ret < 0)
return ret;
+
/* reset all */
ret = si2165_writereg8(state, 0x00c0, 0x00);
if (ret < 0)
@@ -902,7 +1004,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe)