2010-09-28 07:52:43 +08:00
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/*
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* Fujitu mb86a20s ISDB-T/ISDB-Tsb Module driver
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*
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2013-01-14 20:26:09 +08:00
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* Copyright (C) 2010-2013 Mauro Carvalho Chehab <mchehab@redhat.com>
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2010-09-28 07:52:43 +08:00
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* Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <asm/div64.h>
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#include "dvb_frontend.h"
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#include "mb86a20s.h"
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static int debug = 1;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
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#define rc(args...) do { \
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printk(KERN_ERR "mb86a20s: " args); \
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} while (0)
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#define dprintk(args...) \
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do { \
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if (debug) { \
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printk(KERN_DEBUG "mb86a20s: %s: ", __func__); \
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printk(args); \
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} \
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} while (0)
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struct mb86a20s_state {
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struct i2c_adapter *i2c;
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const struct mb86a20s_config *config;
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struct dvb_frontend frontend;
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[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
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bool need_init;
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2010-09-28 07:52:43 +08:00
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};
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struct regdata {
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u8 reg;
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u8 data;
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};
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/*
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* Initialization sequence: Use whatevere default values that PV SBTVD
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* does on its initialisation, obtained via USB snoop
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*/
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static struct regdata mb86a20s_init[] = {
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{ 0x70, 0x0f },
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{ 0x70, 0xff },
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{ 0x08, 0x01 },
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{ 0x09, 0x3e },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xd1 }, { 0x51, 0x22 },
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2010-09-28 07:52:43 +08:00
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{ 0x39, 0x01 },
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{ 0x71, 0x00 },
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2012-01-11 20:56:30 +08:00
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{ 0x28, 0x2a }, { 0x29, 0x00 }, { 0x2a, 0xff }, { 0x2b, 0x80 },
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{ 0x28, 0x20 }, { 0x29, 0x33 }, { 0x2a, 0xdf }, { 0x2b, 0xa9 },
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mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x28, 0x22 }, { 0x29, 0x00 }, { 0x2a, 0x1f }, { 0x2b, 0xf0 },
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2010-09-28 07:52:43 +08:00
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{ 0x3b, 0x21 },
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{ 0x3c, 0x3a },
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{ 0x01, 0x0d },
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2012-01-11 20:56:30 +08:00
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{ 0x04, 0x08 }, { 0x05, 0x05 },
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{ 0x04, 0x0e }, { 0x05, 0x00 },
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{ 0x04, 0x0f }, { 0x05, 0x14 },
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{ 0x04, 0x0b }, { 0x05, 0x8c },
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{ 0x04, 0x00 }, { 0x05, 0x00 },
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{ 0x04, 0x01 }, { 0x05, 0x07 },
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{ 0x04, 0x02 }, { 0x05, 0x0f },
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{ 0x04, 0x03 }, { 0x05, 0xa0 },
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{ 0x04, 0x09 }, { 0x05, 0x00 },
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{ 0x04, 0x0a }, { 0x05, 0xff },
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{ 0x04, 0x27 }, { 0x05, 0x64 },
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{ 0x04, 0x28 }, { 0x05, 0x00 },
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{ 0x04, 0x1e }, { 0x05, 0xff },
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{ 0x04, 0x29 }, { 0x05, 0x0a },
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{ 0x04, 0x32 }, { 0x05, 0x0a },
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{ 0x04, 0x14 }, { 0x05, 0x02 },
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{ 0x04, 0x04 }, { 0x05, 0x00 },
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{ 0x04, 0x05 }, { 0x05, 0x22 },
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{ 0x04, 0x06 }, { 0x05, 0x0e },
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{ 0x04, 0x07 }, { 0x05, 0xd8 },
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{ 0x04, 0x12 }, { 0x05, 0x00 },
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{ 0x04, 0x13 }, { 0x05, 0xff },
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mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x04, 0x15 }, { 0x05, 0x4e },
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{ 0x04, 0x16 }, { 0x05, 0x20 },
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2010-09-28 07:52:43 +08:00
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{ 0x52, 0x01 },
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mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x50, 0xa7 }, { 0x51, 0xff },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xa8 }, { 0x51, 0xff },
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{ 0x50, 0xa9 }, { 0x51, 0xff },
|
mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x50, 0xaa }, { 0x51, 0xff },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xab }, { 0x51, 0xff },
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{ 0x50, 0xac }, { 0x51, 0xff },
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mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x50, 0xad }, { 0x51, 0xff },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xae }, { 0x51, 0xff },
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{ 0x50, 0xaf }, { 0x51, 0xff },
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2010-09-28 07:52:43 +08:00
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{ 0x5e, 0x07 },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xdc }, { 0x51, 0x01 },
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{ 0x50, 0xdd }, { 0x51, 0xf4 },
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{ 0x50, 0xde }, { 0x51, 0x01 },
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{ 0x50, 0xdf }, { 0x51, 0xf4 },
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{ 0x50, 0xe0 }, { 0x51, 0x01 },
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{ 0x50, 0xe1 }, { 0x51, 0xf4 },
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{ 0x50, 0xb0 }, { 0x51, 0x07 },
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{ 0x50, 0xb2 }, { 0x51, 0xff },
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{ 0x50, 0xb3 }, { 0x51, 0xff },
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{ 0x50, 0xb4 }, { 0x51, 0xff },
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{ 0x50, 0xb5 }, { 0x51, 0xff },
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{ 0x50, 0xb6 }, { 0x51, 0xff },
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{ 0x50, 0xb7 }, { 0x51, 0xff },
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{ 0x50, 0x50 }, { 0x51, 0x02 },
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{ 0x50, 0x51 }, { 0x51, 0x04 },
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2010-09-28 07:52:43 +08:00
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{ 0x45, 0x04 },
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{ 0x48, 0x04 },
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2012-01-11 20:56:30 +08:00
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{ 0x50, 0xd5 }, { 0x51, 0x01 }, /* Serial */
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{ 0x50, 0xd6 }, { 0x51, 0x1f },
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{ 0x50, 0xd2 }, { 0x51, 0x03 },
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{ 0x50, 0xd7 }, { 0x51, 0x3f },
|
mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x28, 0x74 }, { 0x29, 0x00 }, { 0x28, 0x74 }, { 0x29, 0x40 },
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{ 0x28, 0x46 }, { 0x29, 0x2c }, { 0x28, 0x46 }, { 0x29, 0x0c },
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2013-01-15 01:12:10 +08:00
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{ 0x04, 0x40 }, { 0x05, 0x00 },
|
mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
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{ 0x28, 0x00 }, { 0x29, 0x10 },
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{ 0x28, 0x05 }, { 0x29, 0x02 },
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2010-09-28 07:52:43 +08:00
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{ 0x1c, 0x01 },
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2012-01-11 20:56:30 +08:00
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{ 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x03 },
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{ 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0d },
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{ 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
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{ 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x01 },
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{ 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x21 },
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{ 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x29 },
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{ 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
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{ 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x31 },
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{ 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0e },
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{ 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x4e },
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{ 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x46 },
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{ 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
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{ 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x56 },
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|
|
{ 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x35 },
|
|
|
|
|
{ 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbe },
|
|
|
|
|
{ 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0x84 },
|
|
|
|
|
{ 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x03 }, { 0x2b, 0xee },
|
|
|
|
|
{ 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x98 },
|
|
|
|
|
{ 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x9f },
|
|
|
|
|
{ 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xb2 },
|
|
|
|
|
{ 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0xc2 },
|
|
|
|
|
{ 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0x4a },
|
|
|
|
|
{ 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbc },
|
|
|
|
|
{ 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x04 }, { 0x2b, 0xba },
|
|
|
|
|
{ 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0x14 },
|
|
|
|
|
{ 0x50, 0x1e }, { 0x51, 0x5d },
|
|
|
|
|
{ 0x50, 0x22 }, { 0x51, 0x00 },
|
|
|
|
|
{ 0x50, 0x23 }, { 0x51, 0xc8 },
|
|
|
|
|
{ 0x50, 0x24 }, { 0x51, 0x00 },
|
|
|
|
|
{ 0x50, 0x25 }, { 0x51, 0xf0 },
|
|
|
|
|
{ 0x50, 0x26 }, { 0x51, 0x00 },
|
|
|
|
|
{ 0x50, 0x27 }, { 0x51, 0xc3 },
|
|
|
|
|
{ 0x50, 0x39 }, { 0x51, 0x02 },
|
mb86a20s: Add a few more register settings at the init seq
Some time ago, Manoel sent us a patch adding more stuff
to the init sequence. However, his patch were also doing
non-related stuff, by changing the init logic without
any good reason. So, it was asked for him to submit a
patch with just the data that has changed, in order to
allow us to better analyze it.
As he didn't what it was requested, I finally found some
time to dig into his init sequence and add it here.
Basically, new stuff is added there. There are a few changes:
1) The removal of the extra (duplicated) logic that puts
the chip into the serial mode;
2) Some Viterbi VBER measurement init data was changed from
0x00 to 0xff for layer A, to match what was done for
layers B and C.
None of those caused any regressions and both make sense
on my eyes.
The other parameters additions actually increased the
tuning quality for some channels. Yet, some channels that
were previously discovered with scan disappered, while
others appeared instead. This were tested in Brasilia,
with an external antena.
At the overall, it is now a little better. So, better to
add these, and then try to figure out a configuration that
would get even better scanning results.
Reported-by: Manoel Pinheiro <pinusdtv@hotmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 21:00:28 +08:00
|
|
|
{ 0x28, 0x6a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 },
|
2010-09-28 07:52:43 +08:00
|
|
|
{ 0xd0, 0x00 },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static struct regdata mb86a20s_reset_reception[] = {
|
|
|
|
|
{ 0x70, 0xf0 },
|
|
|
|
|
{ 0x70, 0xff },
|
|
|
|
|
{ 0x08, 0x01 },
|
|
|
|
|
{ 0x08, 0x00 },
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_i2c_writereg(struct mb86a20s_state *state,
|
|
|
|
|
u8 i2c_addr, int reg, int data)
|
|
|
|
|
{
|
|
|
|
|
u8 buf[] = { reg, data };
|
|
|
|
|
struct i2c_msg msg = {
|
|
|
|
|
.addr = i2c_addr, .flags = 0, .buf = buf, .len = 2
|
|
|
|
|
};
|
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
|
|
rc = i2c_transfer(state->i2c, &msg, 1);
|
|
|
|
|
if (rc != 1) {
|
2011-01-14 19:50:00 +08:00
|
|
|
printk("%s: writereg error (rc == %i, reg == 0x%02x,"
|
2010-09-28 07:52:43 +08:00
|
|
|
" data == 0x%02x)\n", __func__, rc, reg, data);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_i2c_writeregdata(struct mb86a20s_state *state,
|
|
|
|
|
u8 i2c_addr, struct regdata *rd, int size)
|
|
|
|
|
{
|
|
|
|
|
int i, rc;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < size; i++) {
|
|
|
|
|
rc = mb86a20s_i2c_writereg(state, i2c_addr, rd[i].reg,
|
|
|
|
|
rd[i].data);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_i2c_readreg(struct mb86a20s_state *state,
|
|
|
|
|
u8 i2c_addr, u8 reg)
|
|
|
|
|
{
|
|
|
|
|
u8 val;
|
|
|
|
|
int rc;
|
|
|
|
|
struct i2c_msg msg[] = {
|
|
|
|
|
{ .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 },
|
|
|
|
|
{ .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
rc = i2c_transfer(state->i2c, msg, 2);
|
|
|
|
|
|
|
|
|
|
if (rc != 2) {
|
2011-01-14 19:50:00 +08:00
|
|
|
rc("%s: reg=0x%x (error=%d)\n", __func__, reg, rc);
|
2010-09-28 07:52:43 +08:00
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define mb86a20s_readreg(state, reg) \
|
|
|
|
|
mb86a20s_i2c_readreg(state, state->config->demod_address, reg)
|
|
|
|
|
#define mb86a20s_writereg(state, reg, val) \
|
|
|
|
|
mb86a20s_i2c_writereg(state, state->config->demod_address, reg, val)
|
|
|
|
|
#define mb86a20s_writeregdata(state, regdata) \
|
|
|
|
|
mb86a20s_i2c_writeregdata(state, state->config->demod_address, \
|
|
|
|
|
regdata, ARRAY_SIZE(regdata))
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_initfe(struct dvb_frontend *fe)
|
|
|
|
|
{
|
|
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
|
|
|
|
int rc;
|
2010-10-04 03:48:49 +08:00
|
|
|
u8 regD5 = 1;
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 0);
|
|
|
|
|
|
2010-09-28 07:52:43 +08:00
|
|
|
/* Initialize the frontend */
|
|
|
|
|
rc = mb86a20s_writeregdata(state, mb86a20s_init);
|
|
|
|
|
if (rc < 0)
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
goto err;
|
2010-09-28 07:52:43 +08:00
|
|
|
|
2010-10-04 03:48:49 +08:00
|
|
|
if (!state->config->is_serial) {
|
|
|
|
|
regD5 &= ~1;
|
|
|
|
|
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x50, 0xd5);
|
|
|
|
|
if (rc < 0)
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
goto err;
|
2010-10-04 03:48:49 +08:00
|
|
|
rc = mb86a20s_writereg(state, 0x51, regD5);
|
|
|
|
|
if (rc < 0)
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
goto err;
|
2010-10-04 03:48:49 +08:00
|
|
|
}
|
|
|
|
|
|
2013-01-14 21:16:07 +08:00
|
|
|
err:
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
|
|
|
|
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
if (rc < 0) {
|
|
|
|
|
state->need_init = true;
|
|
|
|
|
printk(KERN_INFO "mb86a20s: Init failed. Will try again later\n");
|
|
|
|
|
} else {
|
|
|
|
|
state->need_init = false;
|
2011-03-31 09:57:33 +08:00
|
|
|
dprintk("Initialization succeeded.\n");
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
}
|
|
|
|
|
return rc;
|
2010-09-28 07:52:43 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
|
|
|
|
|
{
|
|
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
|
|
|
|
unsigned rf_max, rf_min, rf;
|
|
|
|
|
u8 val;
|
|
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 0);
|
|
|
|
|
|
2010-09-28 07:52:43 +08:00
|
|
|
/* Does a binary search to get RF strength */
|
|
|
|
|
rf_max = 0xfff;
|
|
|
|
|
rf_min = 0;
|
|
|
|
|
do {
|
|
|
|
|
rf = (rf_max + rf_min) / 2;
|
|
|
|
|
mb86a20s_writereg(state, 0x04, 0x1f);
|
|
|
|
|
mb86a20s_writereg(state, 0x05, rf >> 8);
|
|
|
|
|
mb86a20s_writereg(state, 0x04, 0x20);
|
|
|
|
|
mb86a20s_writereg(state, 0x04, rf);
|
|
|
|
|
|
|
|
|
|
val = mb86a20s_readreg(state, 0x02);
|
|
|
|
|
if (val & 0x08)
|
|
|
|
|
rf_min = (rf_max + rf_min) / 2;
|
|
|
|
|
else
|
|
|
|
|
rf_max = (rf_max + rf_min) / 2;
|
|
|
|
|
if (rf_max - rf_min < 4) {
|
|
|
|
|
*strength = (((rf_max + rf_min) / 2) * 65535) / 4095;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
} while (1);
|
|
|
|
|
|
|
|
|
|
dprintk("signal strength = %d\n", *strength);
|
|
|
|
|
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
|
|
|
|
|
2010-09-28 07:52:43 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status)
|
|
|
|
|
{
|
|
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
2013-01-22 18:49:39 +08:00
|
|
|
int val;
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
*status = 0;
|
|
|
|
|
|
|
|
|
|
val = mb86a20s_readreg(state, 0x0a) & 0xf;
|
2013-01-22 18:49:39 +08:00
|
|
|
if (val < 0)
|
|
|
|
|
return val;
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
if (val >= 2)
|
|
|
|
|
*status |= FE_HAS_SIGNAL;
|
|
|
|
|
|
|
|
|
|
if (val >= 4)
|
|
|
|
|
*status |= FE_HAS_CARRIER;
|
|
|
|
|
|
|
|
|
|
if (val >= 5)
|
|
|
|
|
*status |= FE_HAS_VITERBI;
|
|
|
|
|
|
|
|
|
|
if (val >= 7)
|
|
|
|
|
*status |= FE_HAS_SYNC;
|
|
|
|
|
|
|
|
|
|
if (val >= 8) /* Maybe 9? */
|
|
|
|
|
*status |= FE_HAS_LOCK;
|
|
|
|
|
|
|
|
|
|
dprintk("val = %d, status = 0x%02x\n", val, *status);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2011-12-26 23:11:51 +08:00
|
|
|
static int mb86a20s_set_frontend(struct dvb_frontend *fe)
|
2010-09-28 07:52:43 +08:00
|
|
|
{
|
|
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
|
|
|
|
int rc;
|
2011-12-26 23:11:51 +08:00
|
|
|
#if 0
|
|
|
|
|
/*
|
|
|
|
|
* FIXME: Properly implement the set frontend properties
|
|
|
|
|
*/
|
2013-01-14 20:26:09 +08:00
|
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
2011-12-26 23:11:51 +08:00
|
|
|
#endif
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
|
2013-01-14 21:16:07 +08:00
|
|
|
/*
|
|
|
|
|
* Gate should already be opened, but it doesn't hurt to
|
|
|
|
|
* double-check
|
|
|
|
|
*/
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
dprintk("Calling tuner set parameters\n");
|
2011-12-24 23:24:33 +08:00
|
|
|
fe->ops.tuner_ops.set_params(fe);
|
2010-10-03 16:27:59 +08:00
|
|
|
|
[media] mb86a20s: Be sure that device is initialized before starting DVB
Due to a hard to track bug between tda829x/tda18271/saa7134, tda829x
wants to go to analog mode during DVB initialization, causing some
I2C errors.
The analog failure doesn't cause any harm, as the device were already
properly initialized in analog mode. However, the failure at the digital
mode causes the frontend mb86a20s to not initialize. Fortunately, at
least on my tests, it was possible to detect that the device is a
mb86a20s before the failure.
What happens is that tda8290 is a very bad boy: during DVB setup, it
keeps insisting to call tda18271 analog_set_params, that calls
tune_agc code. The tune_agc code calls saa7134 driver, changing the
value of GPIO 27, switching from digital to analog mode and disabling
the access to mb86a20s, as, on Kworld SBTVD, the same GPIO used
to switch the hardware AGC mode seems to be used to enable the I2C
switch that allows access to the frontend (mb86a20s).
So, a call to analog_set_params ultimately disables the access to
the frontend, and causes a failure at the init frontend logic.
This patch is a workaround for this issue: it simply checks if the
frontend init had any failure. If so, it will init the frontend when
some DTV application will try to set DVB mode.
Even being a hack for Kworld SBTVD to work, and assumning that we could
teach tda8290 to be a good boy, this is actually an improvement at the
frontend driver, as it will be more reliable to initialization failures.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-01-14 22:10:05 +08:00
|
|
|
/*
|
|
|
|
|
* Make it more reliable: if, for some reason, the initial
|
|
|
|
|
* device initialization doesn't happen, initialize it when
|
|
|
|
|
* a SBTVD parameters are adjusted.
|
|
|
|
|
*
|
|
|
|
|
* Unfortunately, due to a hard to track bug at tda829x/tda18271,
|
|
|
|
|
* the agc callback logic is not called during DVB attach time,
|
|
|
|
|
* causing mb86a20s to not be initialized with Kworld SBTVD.
|
|
|
|
|
* So, this hack is needed, in order to make Kworld SBTVD to work.
|
|
|
|
|
*/
|
|
|
|
|
if (state->need_init)
|
|
|
|
|
mb86a20s_initfe(fe);
|
|
|
|
|
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 0);
|
2010-09-28 07:52:43 +08:00
|
|
|
rc = mb86a20s_writeregdata(state, mb86a20s_reset_reception);
|
2010-10-03 16:27:59 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
2012-01-10 04:16:36 +08:00
|
|
|
static int mb86a20s_get_modulation(struct mb86a20s_state *state,
|
|
|
|
|
unsigned layer)
|
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
static unsigned char reg[] = {
|
|
|
|
|
[0] = 0x86, /* Layer A */
|
|
|
|
|
[1] = 0x8a, /* Layer B */
|
|
|
|
|
[2] = 0x8e, /* Layer C */
|
|
|
|
|
};
|
|
|
|
|
|
2012-01-13 13:28:34 +08:00
|
|
|
if (layer >= ARRAY_SIZE(reg))
|
2012-01-10 04:16:36 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x6e);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
2013-01-14 23:31:13 +08:00
|
|
|
switch ((rc >> 4) & 0x07) {
|
2012-01-10 04:16:36 +08:00
|
|
|
case 0:
|
|
|
|
|
return DQPSK;
|
|
|
|
|
case 1:
|
|
|
|
|
return QPSK;
|
|
|
|
|
case 2:
|
|
|
|
|
return QAM_16;
|
|
|
|
|
case 3:
|
|
|
|
|
return QAM_64;
|
|
|
|
|
default:
|
|
|
|
|
return QAM_AUTO;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_get_fec(struct mb86a20s_state *state,
|
|
|
|
|
unsigned layer)
|
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
|
|
static unsigned char reg[] = {
|
|
|
|
|
[0] = 0x87, /* Layer A */
|
|
|
|
|
[1] = 0x8b, /* Layer B */
|
|
|
|
|
[2] = 0x8f, /* Layer C */
|
|
|
|
|
};
|
|
|
|
|
|
2012-01-13 13:28:34 +08:00
|
|
|
if (layer >= ARRAY_SIZE(reg))
|
2012-01-10 04:16:36 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x6e);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
2013-01-14 23:31:13 +08:00
|
|
|
switch ((rc >> 4) & 0x07) {
|
2012-01-10 04:16:36 +08:00
|
|
|
case 0:
|
|
|
|
|
return FEC_1_2;
|
|
|
|
|
case 1:
|
|
|
|
|
return FEC_2_3;
|
|
|
|
|
case 2:
|
|
|
|
|
return FEC_3_4;
|
|
|
|
|
case 3:
|
|
|
|
|
return FEC_5_6;
|
|
|
|
|
case 4:
|
|
|
|
|
return FEC_7_8;
|
|
|
|
|
default:
|
|
|
|
|
return FEC_AUTO;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_get_interleaving(struct mb86a20s_state *state,
|
|
|
|
|
unsigned layer)
|
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
|
|
static unsigned char reg[] = {
|
|
|
|
|
[0] = 0x88, /* Layer A */
|
|
|
|
|
[1] = 0x8c, /* Layer B */
|
|
|
|
|
[2] = 0x90, /* Layer C */
|
|
|
|
|
};
|
|
|
|
|
|
2012-01-13 13:28:34 +08:00
|
|
|
if (layer >= ARRAY_SIZE(reg))
|
2012-01-10 04:16:36 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x6e);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
2013-01-14 23:31:13 +08:00
|
|
|
|
|
|
|
|
switch ((rc >> 4) & 0x07) {
|
|
|
|
|
case 1:
|
|
|
|
|
return GUARD_INTERVAL_1_4;
|
|
|
|
|
case 2:
|
|
|
|
|
return GUARD_INTERVAL_1_8;
|
|
|
|
|
case 3:
|
|
|
|
|
return GUARD_INTERVAL_1_16;
|
|
|
|
|
case 4:
|
|
|
|
|
return GUARD_INTERVAL_1_32;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
case 0:
|
|
|
|
|
return GUARD_INTERVAL_AUTO;
|
|
|
|
|
}
|
2012-01-10 04:16:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int mb86a20s_get_segment_count(struct mb86a20s_state *state,
|
|
|
|
|
unsigned layer)
|
|
|
|
|
{
|
|
|
|
|
int rc, count;
|
|
|
|
|
|
|
|
|
|
static unsigned char reg[] = {
|
|
|
|
|
[0] = 0x89, /* Layer A */
|
|
|
|
|
[1] = 0x8d, /* Layer B */
|
|
|
|
|
[2] = 0x91, /* Layer C */
|
|
|
|
|
};
|
|
|
|
|
|
2012-01-13 13:28:34 +08:00
|
|
|
if (layer >= ARRAY_SIZE(reg))
|
2012-01-10 04:16:36 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x6e);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
count = (rc >> 4) & 0x0f;
|
|
|
|
|
|
|
|
|
|
return count;
|
|
|
|
|
}
|
|
|
|
|
|
2013-01-14 20:26:09 +08:00
|
|
|
static void mb86a20s_reset_frontend_cache(struct dvb_frontend *fe)
|
|
|
|
|
{
|
|
|
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
|
|
|
|
|
|
|
|
/* Fixed parameters */
|
|
|
|
|
c->delivery_system = SYS_ISDBT;
|
|
|
|
|
c->bandwidth_hz = 6000000;
|
|
|
|
|
|
|
|
|
|
/* Initialize values that will be later autodetected */
|
|
|
|
|
c->isdbt_layer_enabled = 0;
|
|
|
|
|
c->transmission_mode = TRANSMISSION_MODE_AUTO;
|
|
|
|
|
c->guard_interval = GUARD_INTERVAL_AUTO;
|
|
|
|
|
c->isdbt_sb_mode = 0;
|
|
|
|
|
c->isdbt_sb_segment_count = 0;
|
|
|
|
|
}
|
|
|
|
|
|
[media] dvb: don't require a parameter for get_frontend
Just like set_frontend, use the dvb cache properties for get_frontend.
This is more consistent, as both functions are now symetric. Also,
at the places get_frontend is called, it makes sense to update the
cache.
Most of this patch were generated by this small perl script:
while (<>) { $file .= $_; }
if ($file =~ m/\.get_frontend\s*=\s*([\d\w_]+)/) {
my $get = $1;
$file =~ s/($get)(\s*\([^\,\)]+)\,\s*struct\s+dtv_frontend_properties\s*\*\s*([_\d\w]+)\)\s*\{/\1\2)\n{\n\tstruct dtv_frontend_properties *\3 = &fe->dtv_property_cache;/g;
}
print $file;
Of course, the changes at dvb_frontend.[ch] were made by hand,
as well as the changes on a few other places, where get_frontend()
is called internally inside the driver.
On some places, get_frontend() were just a void function. Those
occurrences were removed, as the DVB core handles such cases.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-30 22:30:21 +08:00
|
|
|
static int mb86a20s_get_frontend(struct dvb_frontend *fe)
|
2010-09-28 07:52:43 +08:00
|
|
|
{
|
2012-01-10 04:16:36 +08:00
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
2013-01-14 20:26:09 +08:00
|
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
2012-01-10 04:16:36 +08:00
|
|
|
int i, rc;
|
2010-09-28 07:52:43 +08:00
|
|
|
|
2013-01-14 20:26:09 +08:00
|
|
|
/* Reset frontend cache to default values */
|
|
|
|
|
mb86a20s_reset_frontend_cache(fe);
|
2012-01-10 04:16:36 +08:00
|
|
|
|
|
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 0);
|
|
|
|
|
|
|
|
|
|
/* Check for partial reception */
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, 0x85);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x6e);
|
|
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
c->isdbt_partial_reception = (rc & 0x10) ? 1 : 0;
|
2012-01-10 04:16:36 +08:00
|
|
|
|
|
|
|
|
/* Get per-layer data */
|
2013-01-14 20:26:09 +08:00
|
|
|
|
2012-01-10 04:16:36 +08:00
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
|
rc = mb86a20s_get_segment_count(state, i);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
goto error;
|
|
|
|
|
if (rc >= 0 && rc < 14)
|
|
|
|
|
c->layer[i].segment_count = rc;
|
|
|
|
|
else {
|
|
|
|
|
c->layer[i].segment_count = 0;
|
2012-01-10 04:16:36 +08:00
|
|
|
continue;
|
2013-01-14 20:26:09 +08:00
|
|
|
}
|
|
|
|
|
c->isdbt_layer_enabled |= 1 << i;
|
2012-01-10 04:16:36 +08:00
|
|
|
rc = mb86a20s_get_modulation(state, i);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
goto error;
|
|
|
|
|
c->layer[i].modulation = rc;
|
2012-01-10 04:16:36 +08:00
|
|
|
rc = mb86a20s_get_fec(state, i);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
goto error;
|
|
|
|
|
c->layer[i].fec = rc;
|
2012-01-10 04:16:36 +08:00
|
|
|
rc = mb86a20s_get_interleaving(state, i);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
goto error;
|
|
|
|
|
c->layer[i].interleaving = rc;
|
2012-01-10 04:16:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
rc = mb86a20s_writereg(state, 0x6d, 0x84);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
if ((rc & 0x60) == 0x20) {
|
|
|
|
|
c->isdbt_sb_mode = 1;
|
2012-01-10 04:16:36 +08:00
|
|
|
/* At least, one segment should exist */
|
2013-01-14 20:26:09 +08:00
|
|
|
if (!c->isdbt_sb_segment_count)
|
|
|
|
|
c->isdbt_sb_segment_count = 1;
|
|
|
|
|
}
|
2012-01-10 04:16:36 +08:00
|
|
|
|
|
|
|
|
/* Get transmission mode and guard interval */
|
|
|
|
|
rc = mb86a20s_readreg(state, 0x07);
|
2013-01-14 20:26:09 +08:00
|
|
|
if (rc < 0)
|
|
|
|
|
return rc;
|
|
|
|
|
if ((rc & 0x60) == 0x20) {
|
|
|
|
|
switch (rc & 0x0c >> 2) {
|
|
|
|
|
case 0:
|
|
|
|
|
c->transmission_mode = TRANSMISSION_MODE_2K;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
c->transmission_mode = TRANSMISSION_MODE_4K;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
c->transmission_mode = TRANSMISSION_MODE_8K;
|
|
|
|
|
break;
|
2012-01-10 04:16:36 +08:00
|
|
|
}
|
2013-01-14 20:26:09 +08:00
|
|
|
}
|
|
|
|
|
if (!(rc & 0x10)) {
|
|
|
|
|
switch (rc & 0x3) {
|
|
|
|
|
case 0:
|
|
|
|
|
c->guard_interval = GUARD_INTERVAL_1_4;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
c->guard_interval = GUARD_INTERVAL_1_8;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
c->guard_interval = GUARD_INTERVAL_1_16;
|
|
|
|
|
break;
|
2012-01-10 04:16:36 +08:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2013-01-14 20:26:09 +08:00
|
|
|
error:
|
2012-01-10 04:16:36 +08:00
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
2010-09-28 07:52:43 +08:00
|
|
|
|
2013-01-14 20:26:09 +08:00
|
|
|
return rc;
|
|
|
|
|
|
2010-09-28 07:52:43 +08:00
|
|
|
}
|
|
|
|
|
|
2013-01-22 18:49:39 +08:00
|
|
|
static int mb86a20s_read_status_gate(struct dvb_frontend *fe,
|
|
|
|
|
fe_status_t *status)
|
|
|
|
|
{
|
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
*status = 0;
|
|
|
|
|
|
|
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 0);
|
|
|
|
|
|
|
|
|
|
ret = mb86a20s_read_status(fe, status);
|
|
|
|
|
|
|
|
|
|
if (fe->ops.i2c_gate_ctrl)
|
|
|
|
|
fe->ops.i2c_gate_ctrl(fe, 1);
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
2010-09-28 07:52:43 +08:00
|
|
|
static int mb86a20s_tune(struct dvb_frontend *fe,
|
2011-12-27 04:48:33 +08:00
|
|
|
bool re_tune,
|
2010-09-28 07:52:43 +08:00
|
|
|
unsigned int mode_flags,
|
|
|
|
|
unsigned int *delay,
|
|
|
|
|
fe_status_t *status)
|
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
|
2011-12-27 04:48:33 +08:00
|
|
|
if (re_tune)
|
2011-12-26 23:11:51 +08:00
|
|
|
rc = mb86a20s_set_frontend(fe);
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
|
2013-01-22 18:49:39 +08:00
|
|
|
mb86a20s_read_status_gate(fe, status);
|
2010-09-28 07:52:43 +08:00
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void mb86a20s_release(struct dvb_frontend *fe)
|
|
|
|
|
{
|
|
|
|
|
struct mb86a20s_state *state = fe->demodulator_priv;
|
|
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
|
|
|
|
|
kfree(state);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct dvb_frontend_ops mb86a20s_ops;
|
|
|
|
|
|
|
|
|
|
struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
|
|
|
|
|
struct i2c_adapter *i2c)
|
|
|
|
|
{
|
|
|
|
|
u8 rev;
|
|
|
|
|
|
|
|
|
|
/* allocate memory for the internal state */
|
|
|
|
|
struct mb86a20s_state *state =
|
|
|
|
|
kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL);
|
|
|
|
|
|
|
|
|
|
dprintk("\n");
|
|
|
|
|
if (state == NULL) {
|
|
|
|
|
rc("Unable to kzalloc\n");
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* setup the state */
|
|
|
|
|
state->config = config;
|
|
|
|
|
state->i2c = i2c;
|
|
|
|
|
|
|
|
|
|
/* create dvb_frontend */
|
|
|
|
|
memcpy(&state->frontend.ops, &mb86a20s_ops,
|
|
|
|
|
sizeof(struct dvb_frontend_ops));
|
|
|
|
|
state->frontend.demodulator_priv = state;
|
|
|
|
|
|
|
|
|
|
/* Check if it is a mb86a20s frontend */
|
|
|
|
|
rev = mb86a20s_readreg(state, 0);
|
|
|
|
|
|
|
|
|
|
if (rev == 0x13) {
|
|
|
|
|
printk(KERN_INFO "Detected a Fujitsu mb86a20s frontend\n");
|
|
|
|
|
} else {
|
|
|
|
|
printk(KERN_ERR "Frontend revision %d is unknown - aborting.\n",
|
|
|
|
|
rev);
|
|
|
|
|
goto error;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return &state->frontend;
|
|
|
|
|
|
|
|
|
|
error:
|
|
|
|
|
kfree(state);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
EXPORT_SYMBOL(mb86a20s_attach);
|
|
|
|
|
|
|
|
|
|
static struct dvb_frontend_ops mb86a20s_ops = {
|
2011-12-26 23:11:51 +08:00
|
|
|
.delsys = { SYS_ISDBT },
|
2010-09-28 07:52:43 +08:00
|
|
|
/* Use dib8000 values per default */
|
|
|
|
|
.info = {
|
|
|
|
|
.name = "Fujitsu mb86A20s",
|
|
|
|
|
.caps = FE_CAN_INVERSION_AUTO | FE_CAN_RECOVER |
|
|
|
|
|
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
|
|
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
|
|
|
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
|
|
|
|
|
FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_QAM_AUTO |
|
|
|
|
|
FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO,
|
|
|
|
|
/* Actually, those values depend on the used tuner */
|
|
|
|
|
.frequency_min = 45000000,
|
|
|
|
|
.frequency_max = 864000000,
|
|
|
|
|
.frequency_stepsize = 62500,
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
.release = mb86a20s_release,
|
|
|
|
|
|
|
|
|
|
.init = mb86a20s_initfe,
|
2011-12-26 23:11:51 +08:00
|
|
|
.set_frontend = mb86a20s_set_frontend,
|
|
|
|
|
.get_frontend = mb86a20s_get_frontend,
|
2013-01-22 18:49:39 +08:00
|
|
|
.read_status = mb86a20s_read_status_gate,
|
2010-09-28 07:52:43 +08:00
|
|
|
.read_signal_strength = mb86a20s_read_signal_strength,
|
|
|
|
|
.tune = mb86a20s_tune,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("DVB Frontend module for Fujitsu mb86A20s hardware");
|
|
|
|
|
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
|
|
|
|
|
MODULE_LICENSE("GPL");
|