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linux/drivers/media/dvb-frontends/mb86a20s.c

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[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
/*
* Fujitu mb86a20s ISDB-T/ISDB-Tsb Module driver
*
[media, edac] Change my email address There are several left overs with my old email address. Remove their occurrences and add myself at CREDITS, to allow people to be able to reach me on my new addresses. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-07 10:03:07 +00:00
* Copyright (C) 2010-2013 Mauro Carvalho Chehab
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
* Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <asm/div64.h>
#include "dvb_frontend.h"
#include "mb86a20s.h"
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
#define NUM_LAYERS 3
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
enum mb86a20s_bandwidth {
MB86A20S_13SEG = 0,
MB86A20S_13SEG_PARTIAL = 1,
MB86A20S_1SEG = 2,
MB86A20S_3SEG = 3,
};
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static u8 mb86a20s_subchannel[] = {
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
0xb0, 0xc0, 0xd0, 0xe0,
0xf0, 0x00, 0x10, 0x20,
};
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
struct mb86a20s_state {
struct i2c_adapter *i2c;
const struct mb86a20s_config *config;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
u32 last_frequency;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
struct dvb_frontend frontend;
[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 14:10:05 +00:00
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
u32 if_freq;
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
enum mb86a20s_bandwidth bw;
bool inversion;
u32 subchannel;
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
u32 estimated_rate[NUM_LAYERS];
[media] mb86a20s: don't allow updating signal strength too fast Getting signal strength requires some loop poking with I2C. Don't let it happen too fast. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 13:15:30 +00:00
unsigned long get_strength_time;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
[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 14:10:05 +00:00
bool need_init;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
};
struct regdata {
u8 reg;
u8 data;
};
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
#define BER_SAMPLING_RATE 1 /* Seconds */
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
/*
* Initialization sequence: Use whatevere default values that PV SBTVD
* does on its initialisation, obtained via USB snoop
*/
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
static struct regdata mb86a20s_init1[] = {
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{ 0x70, 0x0f },
{ 0x70, 0xff },
{ 0x08, 0x01 },
[media] mb86a20s: change AGC tuning parameters Use the AGC settings present on a newer device. The initial settings were taken from one of the first devices with mb86a20s, and there are several reports that this is not working properly on some places. So, instead of keeping using it, get the parameters taken from a newer device. Tests are welcomed. Tested also with cx231xx PixelView SBTVD Hybrid with no regressions noticed so far. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-01 18:20:25 +00:00
{ 0x50, 0xd1 }, { 0x51, 0x20 },
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
};
static struct regdata mb86a20s_init2[] = {
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x50, 0xd1 }, { 0x51, 0x22 },
{ 0x39, 0x01 },
{ 0x71, 0x00 },
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{ 0x3b, 0x21 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x3c, 0x3a },
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{ 0x01, 0x0d },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x04, 0x08 }, { 0x05, 0x05 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x04, 0x0e }, { 0x05, 0x00 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x04, 0x0f }, { 0x05, 0x14 },
{ 0x04, 0x0b }, { 0x05, 0x8c },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x04, 0x00 }, { 0x05, 0x00 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x04, 0x01 }, { 0x05, 0x07 },
{ 0x04, 0x02 }, { 0x05, 0x0f },
{ 0x04, 0x03 }, { 0x05, 0xa0 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x04, 0x09 }, { 0x05, 0x00 },
{ 0x04, 0x0a }, { 0x05, 0xff },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x04, 0x27 }, { 0x05, 0x64 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x04, 0x28 }, { 0x05, 0x00 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x04, 0x1e }, { 0x05, 0xff },
{ 0x04, 0x29 }, { 0x05, 0x0a },
{ 0x04, 0x32 }, { 0x05, 0x0a },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x04, 0x14 }, { 0x05, 0x02 },
{ 0x04, 0x04 }, { 0x05, 0x00 },
{ 0x04, 0x05 }, { 0x05, 0x22 },
{ 0x04, 0x06 }, { 0x05, 0x0e },
{ 0x04, 0x07 }, { 0x05, 0xd8 },
{ 0x04, 0x12 }, { 0x05, 0x00 },
{ 0x04, 0x13 }, { 0x05, 0xff },
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/*
* On this demod, when the bit count reaches the count below,
* it collects the bit error count. The bit counters are initialized
* to 65535 here. This warrants that all of them will be quickly
* calculated when device gets locked. As TMCC is parsed, the values
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
* will be adjusted later in the driver's code.
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
*/
{ 0x52, 0x01 }, /* Turn on BER before Viterbi */
{ 0x50, 0xa7 }, { 0x51, 0x00 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x50, 0xa8 }, { 0x51, 0xff },
{ 0x50, 0xa9 }, { 0x51, 0xff },
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
{ 0x50, 0xaa }, { 0x51, 0x00 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x50, 0xab }, { 0x51, 0xff },
{ 0x50, 0xac }, { 0x51, 0xff },
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
{ 0x50, 0xad }, { 0x51, 0x00 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x50, 0xae }, { 0x51, 0xff },
{ 0x50, 0xaf }, { 0x51, 0xff },
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/*
* On this demod, post BER counts blocks. When the count reaches the
* value below, it collects the block error count. The block counters
* are initialized to 127 here. This warrants that all of them will be
* quickly calculated when device gets locked. As TMCC is parsed, the
* values will be adjusted later in the driver's code.
*/
{ 0x5e, 0x07 }, /* Turn on BER after Viterbi */
{ 0x50, 0xdc }, { 0x51, 0x00 },
{ 0x50, 0xdd }, { 0x51, 0x7f },
{ 0x50, 0xde }, { 0x51, 0x00 },
{ 0x50, 0xdf }, { 0x51, 0x7f },
{ 0x50, 0xe0 }, { 0x51, 0x00 },
{ 0x50, 0xe1 }, { 0x51, 0x7f },
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
/*
* On this demod, when the block count reaches the count below,
* it collects the block error count. The block counters are initialized
* to 127 here. This warrants that all of them will be quickly
* calculated when device gets locked. As TMCC is parsed, the values
* will be adjusted later in the driver's code.
*/
{ 0x50, 0xb0 }, { 0x51, 0x07 }, /* Enable PER */
{ 0x50, 0xb2 }, { 0x51, 0x00 },
{ 0x50, 0xb3 }, { 0x51, 0x7f },
{ 0x50, 0xb4 }, { 0x51, 0x00 },
{ 0x50, 0xb5 }, { 0x51, 0x7f },
{ 0x50, 0xb6 }, { 0x51, 0x00 },
{ 0x50, 0xb7 }, { 0x51, 0x7f },
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 0x50, 0x50 }, { 0x51, 0x02 }, /* MER manual mode */
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
{ 0x50, 0x51 }, { 0x51, 0x04 }, /* MER symbol 4 */
{ 0x45, 0x04 }, /* CN symbol 4 */
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 0x48, 0x04 }, /* CN manual mode */
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x50, 0xd5 }, { 0x51, 0x01 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 0x50, 0xd6 }, { 0x51, 0x1f },
{ 0x50, 0xd2 }, { 0x51, 0x03 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x50, 0xd7 }, { 0x51, 0x3f },
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{ 0x1c, 0x01 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x03 },
{ 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0d },
{ 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
{ 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x01 },
{ 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x21 },
{ 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x29 },
{ 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
{ 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x31 },
{ 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0e },
{ 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x4e },
{ 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x46 },
{ 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
{ 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x56 },
{ 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 },
mb86a20s: Group registers into the same line On mb86a20s, some registers have sub-addresses, while others not. In order to make easier to compare different settings, group them. No functional changes in this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-11 12:56:30 +00:00
{ 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 },
[media] mb86a20s: fix demod settings With the current settings, only one channel locks properly. That's likely because, when this driver was written, Brazil were still using experimental transmissions. Change it to reproduce the settings used by the newer drivers. That makes it lock on other channels. Tested with both PixelView SBTVD Hybrid (cx231xx-based) and C3Tech Digital Duo HDTV/SDTV (em28xx-based) devices. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:43:53 +00:00
{ 0x50, 0xd5 }, { 0x51, 0x01 },
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{ 0xd0, 0x00 },
};
static struct regdata mb86a20s_reset_reception[] = {
{ 0x70, 0xf0 },
{ 0x70, 0xff },
{ 0x08, 0x01 },
{ 0x08, 0x00 },
};
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
static struct regdata mb86a20s_per_ber_reset[] = {
{ 0x53, 0x00 }, /* pre BER Counter reset */
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
{ 0x53, 0x07 },
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
{ 0x5f, 0x00 }, /* post BER Counter reset */
{ 0x5f, 0x07 },
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
{ 0x50, 0xb1 }, /* PER Counter reset */
{ 0x51, 0x07 },
{ 0x51, 0x00 },
};
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
/*
* I2C read/write functions and macros
*/
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
static int mb86a20s_i2c_writereg(struct mb86a20s_state *state,
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
u8 i2c_addr, u8 reg, u8 data)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{
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) {
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_err(&state->i2c->dev,
"%s: writereg error (rc == %i, reg == 0x%02x, data == 0x%02x)\n",
__func__, rc, reg, data);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
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 = &reg, .len = 1 },
{ .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 }
};
rc = i2c_transfer(state->i2c, msg, 2);
if (rc != 2) {
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_err(&state->i2c->dev, "%s: reg=0x%x (error=%d)\n",
__func__, reg, rc);
return (rc < 0) ? rc : -EIO;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
}
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))
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/*
* Ancillary internal routines (likely compiled inlined)
*
* The functions below assume that gateway lock has already obtained
*/
[media] dvb: Get rid of typedev usage for enums The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-07 17:53:52 +00:00
static int mb86a20s_read_status(struct dvb_frontend *fe, enum fe_status *status)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
int val;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
*status = 0;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: apply mask to val after checking for read failure Appling the mask 0x0f to the immediate return of the call to mb86a20s_readreg will always result in a positive value, meaning that the check of ret < 0 will never work. Instead, check for a -ve return value first, and then mask val with 0x0f. Kudos to Mauro Carvalho Chehab for spotting the mistake in my original fix. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 15:59:15 +00:00
val = mb86a20s_readreg(state, 0x0a);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (val < 0)
return val;
[media] Add support for Kworld SBTVD board Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-03 08:27:59 +00:00
[media] mb86a20s: apply mask to val after checking for read failure Appling the mask 0x0f to the immediate return of the call to mb86a20s_readreg will always result in a positive value, meaning that the check of ret < 0 will never work. Instead, check for a -ve return value first, and then mask val with 0x0f. Kudos to Mauro Carvalho Chehab for spotting the mistake in my original fix. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 15:59:15 +00:00
val &= 0xf;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (val >= 2)
*status |= FE_HAS_SIGNAL;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (val >= 4)
*status |= FE_HAS_CARRIER;
[media] mb86a20s: add support for serial streams By comparing the traffic between Pixelview (cx23102-based and Kworld (saa7134-based), the only difference is at register 0xd5. After some tests, It seems that it is used to change mode between serial and parallel. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-03 19:48:49 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (val >= 5)
*status |= FE_HAS_VITERBI;
[media] mb86a20s: add support for serial streams By comparing the traffic between Pixelview (cx23102-based and Kworld (saa7134-based), the only difference is at register 0xd5. After some tests, It seems that it is used to change mode between serial and parallel. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-03 19:48:49 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (val >= 7)
*status |= FE_HAS_SYNC;
[media] Add support for Kworld SBTVD board Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-03 08:27:59 +00:00
[media] mb86a20s: fix the locking logic On this frontend, it takes a while to start output normal TS data. That only happens on state S9. On S8, the TS output is enabled, but it is not reliable enough. However, the zigzag loop is too fast to let it sync. As, on practical tests, the zigzag software loop doesn't seem to be helping, but just slowing down the tuning, let's switch to hardware algorithm, as the tuners used on such devices are capable of work with frequency drifts without any help from software. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:16:18 +00:00
/*
* Actually, on state S8, it starts receiving TS, but the TS
* output is only on normal state after the transition to S9.
*/
if (val >= 9)
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
*status |= FE_HAS_LOCK;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s: Status = 0x%02x (state = %d)\n",
__func__, *status, val);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
return val;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
static int mb86a20s_read_signal_strength(struct dvb_frontend *fe)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: don't allow updating signal strength too fast Getting signal strength requires some loop poking with I2C. Don't let it happen too fast. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 13:15:30 +00:00
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
int rc;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
unsigned rf_max, rf_min, rf;
[media] Add support for Kworld SBTVD board Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-03 08:27:59 +00:00
[media] mb86a20s: don't allow updating signal strength too fast Getting signal strength requires some loop poking with I2C. Don't let it happen too fast. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 13:15:30 +00:00
if (state->get_strength_time &&
(!time_after(jiffies, state->get_strength_time)))
return c->strength.stat[0].uvalue;
/* Reset its value if an error happen */
c->strength.stat[0].uvalue = 0;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
/* Does a binary search to get RF strength */
rf_max = 0xfff;
rf_min = 0;
do {
rf = (rf_max + rf_min) / 2;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
rc = mb86a20s_writereg(state, 0x04, 0x1f);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x05, rf >> 8);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x04, 0x20);
if (rc < 0)
return rc;
[media] mb86a20s: Fix signal strength calculus A register typo made the calculation to not work. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-01 19:15:16 +00:00
rc = mb86a20s_writereg(state, 0x05, rf);
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
if (rc < 0)
return rc;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
rc = mb86a20s_readreg(state, 0x02);
if (rc < 0)
return rc;
if (rc & 0x08)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
rf_min = (rf_max + rf_min) / 2;
else
rf_max = (rf_max + rf_min) / 2;
if (rf_max - rf_min < 4) {
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
rf = (rf_max + rf_min) / 2;
/* Rescale it from 2^12 (4096) to 2^16 */
[media] mb86a20s: don't allow updating signal strength too fast Getting signal strength requires some loop poking with I2C. Don't let it happen too fast. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 13:15:30 +00:00
rf = rf << (16 - 12);
if (rf)
rf |= (1 << 12) - 1;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev,
"%s: signal strength = %d (%d < RF=%d < %d)\n",
__func__, rf, rf_min, rf >> 4, rf_max);
[media] mb86a20s: don't allow updating signal strength too fast Getting signal strength requires some loop poking with I2C. Don't let it happen too fast. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 13:15:30 +00:00
c->strength.stat[0].uvalue = rf;
state->get_strength_time = jiffies +
msecs_to_jiffies(1000);
return 0;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
}
} while (1);
}
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
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 */
};
[media] mb86a20s: fix off by one checks Clearly ">=" was intended here instead of ">". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-13 05:28:34 +00:00
if (layer >= ARRAY_SIZE(reg))
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
return -EINVAL;
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x6e);
if (rc < 0)
return rc;
[media] mb86a20s: fix interleaving and FEC retrival Get the proper bits from the TMCC table registers. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 15:31:13 +00:00
switch ((rc >> 4) & 0x07) {
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
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 */
};
[media] mb86a20s: fix off by one checks Clearly ">=" was intended here instead of ">". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-13 05:28:34 +00:00
if (layer >= ARRAY_SIZE(reg))
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
return -EINVAL;
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x6e);
if (rc < 0)
return rc;
[media] mb86a20s: fix interleaving and FEC retrival Get the proper bits from the TMCC table registers. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 15:31:13 +00:00
switch ((rc >> 4) & 0x07) {
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
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;
[media] mb86a20s: Fix Interleaving Interleaving code was wrong at mb86a20s: instead, it was looking at the Guard Interval. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:47 +00:00
int interleaving[] = {
0, 1, 2, 4, 8
};
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
static unsigned char reg[] = {
[0] = 0x88, /* Layer A */
[1] = 0x8c, /* Layer B */
[2] = 0x90, /* Layer C */
};
[media] mb86a20s: fix off by one checks Clearly ">=" was intended here instead of ">". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-13 05:28:34 +00:00
if (layer >= ARRAY_SIZE(reg))
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
return -EINVAL;
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x6e);
if (rc < 0)
return rc;
[media] mb86a20s: fix interleaving and FEC retrival Get the proper bits from the TMCC table registers. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 15:31:13 +00:00
[media] mb86a20s: Fix Interleaving Interleaving code was wrong at mb86a20s: instead, it was looking at the Guard Interval. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:47 +00:00
return interleaving[(rc >> 4) & 0x07];
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
}
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 */
};
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: fix off by one checks Clearly ">=" was intended here instead of ">". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-13 05:28:34 +00:00
if (layer >= ARRAY_SIZE(reg))
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
return -EINVAL;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
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;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s: segments: %d.\n", __func__, count);
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
return count;
}
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
static void mb86a20s_reset_frontend_cache(struct dvb_frontend *fe)
{
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
/* 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] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
/*
* Estimates the bit rate using the per-segment bit rate given by
* ABNT/NBR 15601 spec (table 4).
*/
static u32 isdbt_rate[3][5][4] = {
{ /* DQPSK/QPSK */
{ 280850, 312060, 330420, 340430 }, /* 1/2 */
{ 374470, 416080, 440560, 453910 }, /* 2/3 */
{ 421280, 468090, 495630, 510650 }, /* 3/4 */
{ 468090, 520100, 550700, 567390 }, /* 5/6 */
{ 491500, 546110, 578230, 595760 }, /* 7/8 */
}, { /* QAM16 */
{ 561710, 624130, 660840, 680870 }, /* 1/2 */
{ 748950, 832170, 881120, 907820 }, /* 2/3 */
{ 842570, 936190, 991260, 1021300 }, /* 3/4 */
{ 936190, 1040210, 1101400, 1134780 }, /* 5/6 */
{ 983000, 1092220, 1156470, 1191520 }, /* 7/8 */
}, { /* QAM64 */
{ 842570, 936190, 991260, 1021300 }, /* 1/2 */
{ 1123430, 1248260, 1321680, 1361740 }, /* 2/3 */
{ 1263860, 1404290, 1486900, 1531950 }, /* 3/4 */
{ 1404290, 1560320, 1652110, 1702170 }, /* 5/6 */
{ 1474500, 1638340, 1734710, 1787280 }, /* 7/8 */
}
};
static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer,
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
u32 modulation, u32 forward_error_correction,
[media] mb86a20s: Fix the code that estimates the measurement interval Instead of looking at the guard interval field, it was using the interval length, with is wrong. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:48 +00:00
u32 guard_interval,
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
u32 segment)
{
struct mb86a20s_state *state = fe->demodulator_priv;
u32 rate;
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
int mod, fec, guard;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
/*
[media] mb86a20s: Fix the code that estimates the measurement interval Instead of looking at the guard interval field, it was using the interval length, with is wrong. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:48 +00:00
* If modulation/fec/guard is not detected, the default is
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
* to consider the lowest bit rate, to avoid taking too long time
* to get BER.
*/
switch (modulation) {
case DQPSK:
case QPSK:
default:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
mod = 0;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case QAM_16:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
mod = 1;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case QAM_64:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
mod = 2;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
}
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
switch (forward_error_correction) {
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
default:
case FEC_1_2:
case FEC_AUTO:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
fec = 0;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case FEC_2_3:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
fec = 1;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case FEC_3_4:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
fec = 2;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case FEC_5_6:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
fec = 3;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case FEC_7_8:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
fec = 4;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
}
[media] mb86a20s: Fix the code that estimates the measurement interval Instead of looking at the guard interval field, it was using the interval length, with is wrong. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:48 +00:00
switch (guard_interval) {
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
default:
case GUARD_INTERVAL_1_4:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
guard = 0;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case GUARD_INTERVAL_1_8:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
guard = 1;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case GUARD_INTERVAL_1_16:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
guard = 2;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
case GUARD_INTERVAL_1_32:
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
guard = 3;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
break;
}
/* Samples BER at BER_SAMPLING_RATE seconds */
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
rate = isdbt_rate[mod][fec][guard] * segment * BER_SAMPLING_RATE;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
/* Avoids sampling too quickly or to overflow the register */
if (rate < 256)
rate = 256;
else if (rate > (1 << 24) - 1)
rate = (1 << 24) - 1;
dev_dbg(&state->i2c->dev,
"%s: layer %c bitrate: %d kbps; counter = %d (0x%06x)\n",
[media] mb86a20s: better name temp vars at mb86a20s_layer_bitrate() Using 'i' for the guard interval temporary var is a bad idea, as 'i' is generally used by "anonymous" indexes. Let's rename modulation, fec and guard interval temp vars with a meaningful name, as that makes easier to understand the code and avoids cut-and-paste types of error. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:07:47 +00:00
__func__, 'A' + layer,
segment * isdbt_rate[mod][fec][guard]/1000,
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
rate, rate);
[media] mb86a20s: Fix estimate_rate setting As reported by Dan Carpenter <dan.carpenter@oracle.com>: Smatch warnings: drivers/media/dvb-frontends/mb86a20s.c:644 mb86a20s_layer_bitrate() error: buffer overflow 'state->estimated_rate' 3 <= 3 What happens there is that estimate_rate index should be the layer number, and not the guard interval. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08 00:06:12 +00:00
state->estimated_rate[layer] = rate;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
}
[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 14:30:21 +00:00
static int mb86a20s_get_frontend(struct dvb_frontend *fe)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
int layer, rc;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
/* Reset frontend cache to default values */
mb86a20s_reset_frontend_cache(fe);
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
/* Check for partial reception */
rc = mb86a20s_writereg(state, 0x6d, 0x85);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x6e);
if (rc < 0)
return rc;
c->isdbt_partial_reception = (rc & 0x10) ? 1 : 0;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
/* Get per-layer data */
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
for (layer = 0; layer < NUM_LAYERS; layer++) {
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s: getting data for layer %c.\n",
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
__func__, 'A' + layer);
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_get_segment_count(state, layer);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
goto noperlayer_error;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
if (rc >= 0 && rc < 14) {
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].segment_count = rc;
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
} else {
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].segment_count = 0;
state->estimated_rate[layer] = 0;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
continue;
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
}
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->isdbt_layer_enabled |= 1 << layer;
rc = mb86a20s_get_modulation(state, layer);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: modulation %d.\n",
__func__, rc);
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].modulation = rc;
rc = mb86a20s_get_fec(state, layer);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: FEC %d.\n",
__func__, rc);
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].fec = rc;
rc = mb86a20s_get_interleaving(state, layer);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: interleaving %d.\n",
__func__, rc);
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].interleaving = rc;
mb86a20s_layer_bitrate(fe, layer, c->layer[layer].modulation,
c->layer[layer].fec,
[media] mb86a20s: Fix the code that estimates the measurement interval Instead of looking at the guard interval field, it was using the interval length, with is wrong. Fix it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-12 00:37:48 +00:00
c->guard_interval,
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->layer[layer].segment_count);
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
}
rc = mb86a20s_writereg(state, 0x6d, 0x84);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
return rc;
if ((rc & 0x60) == 0x20) {
c->isdbt_sb_mode = 1;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
/* At least, one segment should exist */
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (!c->isdbt_sb_segment_count)
c->isdbt_sb_segment_count = 1;
}
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
/* Get transmission mode and guard interval */
rc = mb86a20s_readreg(state, 0x07);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (rc < 0)
return rc;
[media] mb86a20s: fix ISDB-T mode handling The driver was reporting an incorrect mode, when mode 2 is selected. While testing it, noticed that neither mode 1 or guard interval 1/32 is supported by this device. Document it, and ensure that it will report _AUTO when it doesn't lock, in order to not report a wrong detection to userspace. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-21 17:55:05 +00:00
c->transmission_mode = TRANSMISSION_MODE_AUTO;
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if ((rc & 0x60) == 0x20) {
[media] mb86a20s: fix ISDB-T mode handling The driver was reporting an incorrect mode, when mode 2 is selected. While testing it, noticed that neither mode 1 or guard interval 1/32 is supported by this device. Document it, and ensure that it will report _AUTO when it doesn't lock, in order to not report a wrong detection to userspace. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-21 17:55:05 +00:00
/* Only modes 2 and 3 are supported */
switch ((rc >> 2) & 0x03) {
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
case 1:
c->transmission_mode = TRANSMISSION_MODE_4K;
break;
case 2:
c->transmission_mode = TRANSMISSION_MODE_8K;
break;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
}
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
}
[media] mb86a20s: fix ISDB-T mode handling The driver was reporting an incorrect mode, when mode 2 is selected. While testing it, noticed that neither mode 1 or guard interval 1/32 is supported by this device. Document it, and ensure that it will report _AUTO when it doesn't lock, in order to not report a wrong detection to userspace. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-21 17:55:05 +00:00
c->guard_interval = GUARD_INTERVAL_AUTO;
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
if (!(rc & 0x10)) {
[media] mb86a20s: fix ISDB-T mode handling The driver was reporting an incorrect mode, when mode 2 is selected. While testing it, noticed that neither mode 1 or guard interval 1/32 is supported by this device. Document it, and ensure that it will report _AUTO when it doesn't lock, in order to not report a wrong detection to userspace. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-21 17:55:05 +00:00
/* Guard interval 1/32 is not supported */
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
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;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
}
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
return 0;
[media] mb86a20s: implement get_frontend() Reports the auto-detected parameters to userspace. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-09 20:16:36 +00:00
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
noperlayer_error:
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* per-layer info is incomplete; discard all per-layer */
c->isdbt_layer_enabled = 0;
return rc;
}
static int mb86a20s_reset_counters(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int rc, val;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
/* Reset the counters, if the channel changed */
if (state->last_frequency != c->frequency) {
memset(&c->cnr, 0, sizeof(c->cnr));
memset(&c->pre_bit_error, 0, sizeof(c->pre_bit_error));
memset(&c->pre_bit_count, 0, sizeof(c->pre_bit_count));
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
memset(&c->post_bit_error, 0, sizeof(c->post_bit_error));
memset(&c->post_bit_count, 0, sizeof(c->post_bit_count));
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
memset(&c->block_error, 0, sizeof(c->block_error));
memset(&c->block_count, 0, sizeof(c->block_count));
state->last_frequency = c->frequency;
}
/* Clear status for most stats */
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/* BER/PER counter reset */
rc = mb86a20s_writeregdata(state, mb86a20s_per_ber_reset);
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
if (rc < 0)
goto err;
/* CNR counter reset */
rc = mb86a20s_readreg(state, 0x45);
if (rc < 0)
goto err;
val = rc;
rc = mb86a20s_writereg(state, 0x45, val | 0x10);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x45, val & 0x6f);
if (rc < 0)
goto err;
/* MER counter reset */
rc = mb86a20s_writereg(state, 0x50, 0x50);
if (rc < 0)
goto err;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
goto err;
val = rc;
rc = mb86a20s_writereg(state, 0x51, val | 0x01);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x51, val & 0x06);
if (rc < 0)
goto err;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
goto ok;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
err:
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
dev_err(&state->i2c->dev,
"%s: Can't reset FE statistics (error %d).\n",
__func__, rc);
ok:
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
return rc;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
}
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
static int mb86a20s_get_pre_ber(struct dvb_frontend *fe,
unsigned layer,
u32 *error, u32 *count)
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
int rc, val;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
if (layer >= NUM_LAYERS)
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
return -EINVAL;
/* Check if the BER measures are already available */
rc = mb86a20s_readreg(state, 0x54);
if (rc < 0)
return rc;
/* Check if data is available for that layer */
if (!(rc & (1 << layer))) {
dev_dbg(&state->i2c->dev,
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
"%s: preBER for layer %c is not available yet.\n",
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
__func__, 'A' + layer);
return -EBUSY;
}
/* Read Bit Error Count */
rc = mb86a20s_readreg(state, 0x55 + layer * 3);
if (rc < 0)
return rc;
*error = rc << 16;
rc = mb86a20s_readreg(state, 0x56 + layer * 3);
if (rc < 0)
return rc;
*error |= rc << 8;
rc = mb86a20s_readreg(state, 0x57 + layer * 3);
if (rc < 0)
return rc;
*error |= rc;
dev_dbg(&state->i2c->dev,
"%s: bit error before Viterbi for layer %c: %d.\n",
__func__, 'A' + layer, *error);
/* Read Bit Count */
rc = mb86a20s_writereg(state, 0x50, 0xa7 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*count = rc << 16;
rc = mb86a20s_writereg(state, 0x50, 0xa8 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*count |= rc << 8;
rc = mb86a20s_writereg(state, 0x50, 0xa9 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*count |= rc;
dev_dbg(&state->i2c->dev,
"%s: bit count before Viterbi for layer %c: %d.\n",
__func__, 'A' + layer, *count);
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
/*
* As we get TMCC data from the frontend, we can better estimate the
* BER bit counters, in order to do the BER measure during a longer
* time. Use those data, if available, to update the bit count
* measure.
*/
if (state->estimated_rate[layer]
&& state->estimated_rate[layer] != *count) {
dev_dbg(&state->i2c->dev,
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
"%s: updating layer %c preBER counter to %d.\n",
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
__func__, 'A' + layer, state->estimated_rate[layer]);
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
/* Turn off BER before Viterbi */
rc = mb86a20s_writereg(state, 0x52, 0x00);
/* Update counter for this layer */
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
rc = mb86a20s_writereg(state, 0x50, 0xa7 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51,
state->estimated_rate[layer] >> 16);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x50, 0xa8 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51,
state->estimated_rate[layer] >> 8);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x50, 0xa9 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51,
state->estimated_rate[layer]);
if (rc < 0)
return rc;
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
/* Turn on BER before Viterbi */
rc = mb86a20s_writereg(state, 0x52, 0x01);
/* Reset all preBER counters */
rc = mb86a20s_writereg(state, 0x53, 0x00);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x53, 0x07);
} else {
/* Reset counter to collect new data */
rc = mb86a20s_readreg(state, 0x53);
if (rc < 0)
return rc;
val = rc;
rc = mb86a20s_writereg(state, 0x53, val & ~(1 << layer));
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x53, val | (1 << layer));
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
}
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
return rc;
}
static int mb86a20s_get_post_ber(struct dvb_frontend *fe,
unsigned layer,
u32 *error, u32 *count)
{
struct mb86a20s_state *state = fe->demodulator_priv;
u32 counter, collect_rate;
int rc, val;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
if (layer >= NUM_LAYERS)
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
return -EINVAL;
/* Check if the BER measures are already available */
rc = mb86a20s_readreg(state, 0x60);
if (rc < 0)
return rc;
/* Check if data is available for that layer */
if (!(rc & (1 << layer))) {
dev_dbg(&state->i2c->dev,
"%s: post BER for layer %c is not available yet.\n",
__func__, 'A' + layer);
return -EBUSY;
}
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/* Read Bit Error Count */
rc = mb86a20s_readreg(state, 0x64 + layer * 3);
if (rc < 0)
return rc;
*error = rc << 16;
rc = mb86a20s_readreg(state, 0x65 + layer * 3);
if (rc < 0)
return rc;
*error |= rc << 8;
rc = mb86a20s_readreg(state, 0x66 + layer * 3);
if (rc < 0)
return rc;
*error |= rc;
dev_dbg(&state->i2c->dev,
"%s: post bit error for layer %c: %d.\n",
__func__, 'A' + layer, *error);
/* Read Bit Count */
rc = mb86a20s_writereg(state, 0x50, 0xdc + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
counter = rc << 8;
rc = mb86a20s_writereg(state, 0x50, 0xdd + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
counter |= rc;
*count = counter * 204 * 8;
dev_dbg(&state->i2c->dev,
"%s: post bit count for layer %c: %d.\n",
__func__, 'A' + layer, *count);
/*
* As we get TMCC data from the frontend, we can better estimate the
* BER bit counters, in order to do the BER measure during a longer
* time. Use those data, if available, to update the bit count
* measure.
*/
if (!state->estimated_rate[layer])
goto reset_measurement;
collect_rate = state->estimated_rate[layer] / 204 / 8;
if (collect_rate < 32)
collect_rate = 32;
if (collect_rate > 65535)
collect_rate = 65535;
if (collect_rate != counter) {
dev_dbg(&state->i2c->dev,
"%s: updating postBER counter on layer %c to %d.\n",
__func__, 'A' + layer, collect_rate);
/* Turn off BER after Viterbi */
rc = mb86a20s_writereg(state, 0x5e, 0x00);
/* Update counter for this layer */
rc = mb86a20s_writereg(state, 0x50, 0xdc + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, collect_rate >> 8);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x50, 0xdd + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, collect_rate & 0xff);
if (rc < 0)
return rc;
/* Turn on BER after Viterbi */
rc = mb86a20s_writereg(state, 0x5e, 0x07);
/* Reset all preBER counters */
rc = mb86a20s_writereg(state, 0x5f, 0x00);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x5f, 0x07);
return rc;
}
reset_measurement:
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
/* Reset counter to collect new data */
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
rc = mb86a20s_readreg(state, 0x5f);
if (rc < 0)
return rc;
val = rc;
rc = mb86a20s_writereg(state, 0x5f, val & ~(1 << layer));
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
if (rc < 0)
return rc;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
rc = mb86a20s_writereg(state, 0x5f, val | (1 << layer));
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
return rc;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
static int mb86a20s_get_blk_error(struct dvb_frontend *fe,
unsigned layer,
u32 *error, u32 *count)
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
int rc, val;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
u32 collect_rate;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
if (layer >= NUM_LAYERS)
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
return -EINVAL;
/* Check if the PER measures are already available */
rc = mb86a20s_writereg(state, 0x50, 0xb8);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
/* Check if data is available for that layer */
if (!(rc & (1 << layer))) {
dev_dbg(&state->i2c->dev,
"%s: block counts for layer %c aren't available yet.\n",
__func__, 'A' + layer);
return -EBUSY;
}
/* Read Packet error Count */
rc = mb86a20s_writereg(state, 0x50, 0xb9 + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*error = rc << 8;
rc = mb86a20s_writereg(state, 0x50, 0xba + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*error |= rc;
[media] mb86a20s: don't pollute dmesg with debug messages There are a few debug tests that are shown with dev_err() or dev_info(). Replace them by dev_dbg(). Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:05:42 +00:00
dev_dbg(&state->i2c->dev, "%s: block error for layer %c: %d.\n",
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
__func__, 'A' + layer, *error);
/* Read Bit Count */
rc = mb86a20s_writereg(state, 0x50, 0xb2 + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*count = rc << 8;
rc = mb86a20s_writereg(state, 0x50, 0xb3 + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
*count |= rc;
dev_dbg(&state->i2c->dev,
"%s: block count for layer %c: %d.\n",
__func__, 'A' + layer, *count);
/*
* As we get TMCC data from the frontend, we can better estimate the
* BER bit counters, in order to do the BER measure during a longer
* time. Use those data, if available, to update the bit count
* measure.
*/
if (!state->estimated_rate[layer])
goto reset_measurement;
collect_rate = state->estimated_rate[layer] / 204 / 8;
if (collect_rate < 32)
collect_rate = 32;
if (collect_rate > 65535)
collect_rate = 65535;
if (collect_rate != *count) {
dev_dbg(&state->i2c->dev,
"%s: updating PER counter on layer %c to %d.\n",
__func__, 'A' + layer, collect_rate);
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
/* Stop PER measurement */
rc = mb86a20s_writereg(state, 0x50, 0xb0);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, 0x00);
if (rc < 0)
return rc;
/* Update this layer's counter */
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
rc = mb86a20s_writereg(state, 0x50, 0xb2 + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, collect_rate >> 8);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x50, 0xb3 + layer * 2);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, collect_rate & 0xff);
if (rc < 0)
return rc;
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
/* start PER measurement */
rc = mb86a20s_writereg(state, 0x50, 0xb0);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, 0x07);
if (rc < 0)
return rc;
/* Reset all counters to collect new data */
rc = mb86a20s_writereg(state, 0x50, 0xb1);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, 0x07);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, 0x00);
return rc;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
}
reset_measurement:
/* Reset counter to collect new data */
rc = mb86a20s_writereg(state, 0x50, 0xb1);
if (rc < 0)
return rc;
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
rc = mb86a20s_readreg(state, 0x51);
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
if (rc < 0)
return rc;
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
val = rc;
rc = mb86a20s_writereg(state, 0x51, val | (1 << layer));
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
if (rc < 0)
return rc;
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
rc = mb86a20s_writereg(state, 0x51, val & ~(1 << layer));
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
[media] mb86a20s: fix the PER reset logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:51:23 +00:00
return rc;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
}
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
struct linear_segments {
unsigned x, y;
};
/*
* All tables below return a dB/1000 measurement
*/
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static const struct linear_segments cnr_to_db_table[] = {
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 19648, 0},
{ 18187, 1000},
{ 16534, 2000},
{ 14823, 3000},
{ 13161, 4000},
{ 11622, 5000},
{ 10279, 6000},
{ 9089, 7000},
{ 8042, 8000},
{ 7137, 9000},
{ 6342, 10000},
{ 5641, 11000},
{ 5030, 12000},
{ 4474, 13000},
{ 3988, 14000},
{ 3556, 15000},
{ 3180, 16000},
{ 2841, 17000},
{ 2541, 18000},
{ 2276, 19000},
{ 2038, 20000},
{ 1800, 21000},
{ 1625, 22000},
{ 1462, 23000},
{ 1324, 24000},
{ 1175, 25000},
{ 1063, 26000},
{ 980, 27000},
{ 907, 28000},
{ 840, 29000},
{ 788, 30000},
};
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static const struct linear_segments cnr_64qam_table[] = {
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 3922688, 0},
{ 3920384, 1000},
{ 3902720, 2000},
{ 3894784, 3000},
{ 3882496, 4000},
{ 3872768, 5000},
{ 3858944, 6000},
{ 3851520, 7000},
{ 3838976, 8000},
{ 3829248, 9000},
{ 3818240, 10000},
{ 3806976, 11000},
{ 3791872, 12000},
{ 3767040, 13000},
{ 3720960, 14000},
{ 3637504, 15000},
{ 3498496, 16000},
{ 3296000, 17000},
{ 3031040, 18000},
{ 2715392, 19000},
{ 2362624, 20000},
{ 1963264, 21000},
{ 1649664, 22000},
{ 1366784, 23000},
{ 1120768, 24000},
{ 890880, 25000},
{ 723456, 26000},
{ 612096, 27000},
{ 518912, 28000},
{ 448256, 29000},
{ 388864, 30000},
};
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static const struct linear_segments cnr_16qam_table[] = {
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 5314816, 0},
{ 5219072, 1000},
{ 5118720, 2000},
{ 4998912, 3000},
{ 4875520, 4000},
{ 4736000, 5000},
{ 4604160, 6000},
{ 4458752, 7000},
{ 4300288, 8000},
{ 4092928, 9000},
{ 3836160, 10000},
{ 3521024, 11000},
{ 3155968, 12000},
{ 2756864, 13000},
{ 2347008, 14000},
{ 1955072, 15000},
{ 1593600, 16000},
{ 1297920, 17000},
{ 1043968, 18000},
{ 839680, 19000},
{ 672256, 20000},
{ 523008, 21000},
{ 424704, 22000},
{ 345088, 23000},
{ 280064, 24000},
{ 221440, 25000},
{ 179712, 26000},
{ 151040, 27000},
{ 128512, 28000},
{ 110080, 29000},
{ 95744, 30000},
};
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static const struct linear_segments cnr_qpsk_table[] = {
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{ 2834176, 0},
{ 2683648, 1000},
{ 2536960, 2000},
{ 2391808, 3000},
{ 2133248, 4000},
{ 1906176, 5000},
{ 1666560, 6000},
{ 1422080, 7000},
{ 1189632, 8000},
{ 976384, 9000},
{ 790272, 10000},
{ 633344, 11000},
{ 505600, 12000},
{ 402944, 13000},
{ 320768, 14000},
{ 255488, 15000},
{ 204032, 16000},
{ 163072, 17000},
{ 130304, 18000},
{ 105216, 19000},
{ 83456, 20000},
{ 65024, 21000},
{ 52480, 22000},
{ 42752, 23000},
{ 34560, 24000},
{ 27136, 25000},
{ 22016, 26000},
{ 18432, 27000},
{ 15616, 28000},
{ 13312, 29000},
{ 11520, 30000},
};
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
static u32 interpolate_value(u32 value, const struct linear_segments *segments,
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
unsigned len)
{
u64 tmp64;
u32 dx, dy;
int i, ret;
if (value >= segments[0].x)
return segments[0].y;
if (value < segments[len-1].x)
return segments[len-1].y;
for (i = 1; i < len - 1; i++) {
/* If value is identical, no need to interpolate */
if (value == segments[i].x)
return segments[i].y;
if (value > segments[i].x)
break;
}
/* Linear interpolation between the two (x,y) points */
dy = segments[i].y - segments[i - 1].y;
dx = segments[i - 1].x - segments[i].x;
tmp64 = value - segments[i].x;
tmp64 *= dy;
do_div(tmp64, dx);
ret = segments[i].y - tmp64;
return ret;
}
static int mb86a20s_get_main_CNR(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 cnr_linear, cnr;
int rc, val;
/* Check if CNR is available */
rc = mb86a20s_readreg(state, 0x45);
if (rc < 0)
return rc;
if (!(rc & 0x40)) {
[media] mb86a20s: don't pollute dmesg with debug messages There are a few debug tests that are shown with dev_err() or dev_info(). Replace them by dev_dbg(). Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:05:42 +00:00
dev_dbg(&state->i2c->dev, "%s: CNR is not available yet.\n",
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
__func__);
return -EBUSY;
}
val = rc;
rc = mb86a20s_readreg(state, 0x46);
if (rc < 0)
return rc;
cnr_linear = rc << 8;
rc = mb86a20s_readreg(state, 0x46);
if (rc < 0)
return rc;
cnr_linear |= rc;
cnr = interpolate_value(cnr_linear,
cnr_to_db_table, ARRAY_SIZE(cnr_to_db_table));
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
c->cnr.stat[0].svalue = cnr;
dev_dbg(&state->i2c->dev, "%s: CNR is %d.%03d dB (%d)\n",
__func__, cnr / 1000, cnr % 1000, cnr_linear);
/* CNR counter reset */
rc = mb86a20s_writereg(state, 0x45, val | 0x10);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x45, val & 0x6f);
return rc;
}
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe)
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 mer, cnr;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
int rc, val, layer;
[media] mb86a16/mb86a20s: fix sparse warnings drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-20 21:08:17 +00:00
const struct linear_segments *segs;
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
unsigned segs_len;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
/* Check if the measures are already available */
rc = mb86a20s_writereg(state, 0x50, 0x5b);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
/* Check if data is available */
if (!(rc & 0x01)) {
[media] mb86a20s: don't pollute dmesg with debug messages There are a few debug tests that are shown with dev_err() or dev_info(). Replace them by dev_dbg(). Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:05:42 +00:00
dev_dbg(&state->i2c->dev,
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
"%s: MER measures aren't available yet.\n", __func__);
return -EBUSY;
}
/* Read all layers */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
for (layer = 0; layer < NUM_LAYERS; layer++) {
if (!(c->isdbt_layer_enabled & (1 << layer))) {
c->cnr.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
continue;
}
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_writereg(state, 0x50, 0x52 + layer * 3);
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
mer = rc << 16;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_writereg(state, 0x50, 0x53 + layer * 3);
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
mer |= rc << 8;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_writereg(state, 0x50, 0x54 + layer * 3);
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
mer |= rc;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
switch (c->layer[layer].modulation) {
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
case DQPSK:
case QPSK:
segs = cnr_qpsk_table;
segs_len = ARRAY_SIZE(cnr_qpsk_table);
break;
case QAM_16:
segs = cnr_16qam_table;
segs_len = ARRAY_SIZE(cnr_16qam_table);
break;
default:
case QAM_64:
segs = cnr_64qam_table;
segs_len = ARRAY_SIZE(cnr_64qam_table);
break;
}
cnr = interpolate_value(mer, segs, segs_len);
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->cnr.stat[1 + layer].scale = FE_SCALE_DECIBEL;
c->cnr.stat[1 + layer].svalue = cnr;
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
dev_dbg(&state->i2c->dev,
"%s: CNR for layer %c is %d.%03d dB (MER = %d).\n",
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
__func__, 'A' + layer, cnr / 1000, cnr % 1000, mer);
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
}
/* Start a new MER measurement */
/* MER counter reset */
rc = mb86a20s_writereg(state, 0x50, 0x50);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
val = rc;
rc = mb86a20s_writereg(state, 0x51, val | 0x01);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, val & 0x06);
if (rc < 0)
return rc;
return 0;
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
static void mb86a20s_stats_not_ready(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
int layer;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: improve error handling at get_frontend The read/write errors are not handled well on get_frontend. Fix it, by letting the frontend cached values to represent the DVB properties that were successfully retrieved. While here, use "c" for dtv_frontend_properties cache, instead of "p", as this is more common. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 12:26:09 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* Fill the length of each status counter */
/* Only global stats */
c->strength.len = 1;
/* Per-layer stats - 3 layers + global */
[media] mb86a20s: Use a macro for the number of layers Instead of using the magic number "3", use NUM_LAYERS macro on all places that are related to the ISDB-T layers. This makes the source code a little more readable. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:50:34 +00:00
c->cnr.len = NUM_LAYERS + 1;
c->pre_bit_error.len = NUM_LAYERS + 1;
c->pre_bit_count.len = NUM_LAYERS + 1;
c->post_bit_error.len = NUM_LAYERS + 1;
c->post_bit_count.len = NUM_LAYERS + 1;
c->block_error.len = NUM_LAYERS + 1;
c->block_count.len = NUM_LAYERS + 1;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* Signal is always available */
c->strength.stat[0].scale = FE_SCALE_RELATIVE;
c->strength.stat[0].uvalue = 0;
/* Put all of them at FE_SCALE_NOT_AVAILABLE */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
for (layer = 0; layer < NUM_LAYERS + 1; layer++) {
c->cnr.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->pre_bit_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->pre_bit_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
}
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
}
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
static int mb86a20s_get_stats(struct dvb_frontend *fe, int status_nr)
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
int rc = 0, layer;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
u32 bit_error = 0, bit_count = 0;
u32 t_pre_bit_error = 0, t_pre_bit_count = 0;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
u32 t_post_bit_error = 0, t_post_bit_count = 0;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
u32 block_error = 0, block_count = 0;
u32 t_block_error = 0, t_block_count = 0;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
int active_layers = 0, pre_ber_layers = 0, post_ber_layers = 0;
int per_layers = 0;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
mb86a20s_get_main_CNR(fe);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
/* Get per-layer stats */
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
mb86a20s_get_blk_error_layer_CNR(fe);
[media] mb86a20s: add CNR measurement Add Signal/Noise ratio measurement. On this device, a global measure is taken by the demod. It also provides per-layer CNR measurements, based on Modulation Error measures (MER). Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-16 18:12:05 +00:00
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
/*
* At state 7, only CNR is available
* For BER measures, state=9 is required
* FIXME: we may get MER measures with state=8
*/
if (status_nr < 9)
return 0;
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
for (layer = 0; layer < NUM_LAYERS; layer++) {
if (c->isdbt_layer_enabled & (1 << layer)) {
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
/* Layer is active and has rc segments */
active_layers++;
/* Handle BER before vterbi */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_get_pre_ber(fe, layer,
[media] mb86a20s: some fixes at preBER logic The logic that resets the device is wrong. It should be resetting just the layer that got read. Also, stop is needed before updating the counters. While there, rename it, as we'll soon introduce a postBER logic there. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 14:48:44 +00:00
&bit_error, &bit_count);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
if (rc >= 0) {
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->pre_bit_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->pre_bit_error.stat[1 + layer].uvalue += bit_error;
c->pre_bit_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->pre_bit_count.stat[1 + layer].uvalue += bit_count;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->pre_bit_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
c->pre_bit_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
dev_err(&state->i2c->dev,
"%s: Can't get BER for layer %c (error %d).\n",
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
__func__, 'A' + layer, rc);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
pre_ber_layers++;
/* Handle BER post vterbi */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_get_post_ber(fe, layer,
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
&bit_error, &bit_count);
if (rc >= 0) {
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->post_bit_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[1 + layer].uvalue += bit_error;
c->post_bit_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[1 + layer].uvalue += bit_count;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->post_bit_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
dev_err(&state->i2c->dev,
"%s: Can't get BER for layer %c (error %d).\n",
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
__func__, 'A' + layer, rc);
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
}
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
post_ber_layers++;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
/* Handle Block errors for PER/UCB reports */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
rc = mb86a20s_get_blk_error(fe, layer,
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
&block_error,
&block_count);
if (rc >= 0) {
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->block_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->block_error.stat[1 + layer].uvalue += block_error;
c->block_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
c->block_count.stat[1 + layer].uvalue += block_count;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
c->block_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
dev_err(&state->i2c->dev,
"%s: Can't get PER for layer %c (error %d).\n",
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
__func__, 'A' + layer, rc);
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
}
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
per_layers++;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/* Update total preBER */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
t_pre_bit_error += c->pre_bit_error.stat[1 + layer].uvalue;
t_pre_bit_count += c->pre_bit_count.stat[1 + layer].uvalue;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/* Update total postBER */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
t_post_bit_error += c->post_bit_error.stat[1 + layer].uvalue;
t_post_bit_count += c->post_bit_count.stat[1 + layer].uvalue;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
/* Update total PER */
[media] mb86a20s: Use 'layer' instead of 'i' on all places We're using the anonymous 'i' to indicate the layer number on several places on the driver. That's not good, as some cut-and-paste type of change might be doing the wrong thing. So, call it as "layer" everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:52:16 +00:00
t_block_error += c->block_error.stat[1 + layer].uvalue;
t_block_count += c->block_count.stat[1 + layer].uvalue;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
}
/*
* Start showing global count if at least one error count is
* available.
*/
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
if (pre_ber_layers) {
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
/*
* At least one per-layer BER measure was read. We can now
* calculate the total BER
*
* Total Bit Error/Count is calculated as the sum of the
* bit errors on all active layers.
*/
c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_error.stat[0].uvalue = t_pre_bit_error;
c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_count.stat[0].uvalue = t_pre_bit_count;
[media] mb86a20s: remove global BER/PER counters if per-layer counters vanish If, for any reason, all per-layers counters stop, remove the corresponding global counter. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 16:16:17 +00:00
} else {
c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
/*
* Start showing global count if at least one error count is
* available.
*/
if (post_ber_layers) {
/*
* At least one per-layer BER measure was read. We can now
* calculate the total BER
*
* Total Bit Error/Count is calculated as the sum of the
* bit errors on all active layers.
*/
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0].uvalue = t_post_bit_error;
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[0].uvalue = t_post_bit_count;
[media] mb86a20s: remove global BER/PER counters if per-layer counters vanish If, for any reason, all per-layers counters stop, remove the corresponding global counter. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 16:16:17 +00:00
} else {
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
[media] mb86a20s: add a logic for post-BER measurement The logic here is similar to the preBER. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 13:25:16 +00:00
}
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
if (per_layers) {
/*
* At least one per-layer UCB measure was read. We can now
* calculate the total UCB
*
* Total block Error/Count is calculated as the sum of the
* block errors on all active layers.
*/
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue = t_block_error;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
c->block_count.stat[0].uvalue = t_block_count;
[media] mb86a20s: remove global BER/PER counters if per-layer counters vanish If, for any reason, all per-layers counters stop, remove the corresponding global counter. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-24 16:16:17 +00:00
} else {
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
[media] mb86a20s: add block count measures (PER/UCB) Add both per-layer and global block error count and block count, for PER and UCB measurements. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-17 23:10:47 +00:00
}
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
return rc;
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/*
* The functions below are called via DVB callbacks, so they need to
* properly use the I2C gate control
*/
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
static int mb86a20s_initfe(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
u64 pll;
[media] mb86a20s: Don't assume a 32.57142MHz clock Now that some devices initialize register 0x2a with different values, add the calculus formula, instead of hardcoding it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 11:15:49 +00:00
u32 fclk;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
int rc;
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
u8 regD5 = 1, reg71, reg09 = 0x3a;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
/* Initialize the frontend */
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
rc = mb86a20s_writeregdata(state, mb86a20s_init1);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (rc < 0)
goto err;
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
if (!state->inversion)
reg09 |= 0x04;
rc = mb86a20s_writereg(state, 0x09, reg09);
if (rc < 0)
goto err;
if (!state->bw)
reg71 = 1;
else
reg71 = 0;
rc = mb86a20s_writereg(state, 0x39, reg71);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x71, state->bw);
if (rc < 0)
goto err;
if (state->subchannel) {
rc = mb86a20s_writereg(state, 0x44, state->subchannel);
if (rc < 0)
goto err;
}
[media] mb86a20s: Don't assume a 32.57142MHz clock Now that some devices initialize register 0x2a with different values, add the calculus formula, instead of hardcoding it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 11:15:49 +00:00
fclk = state->config->fclk;
if (!fclk)
fclk = 32571428;
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
/* Adjust IF frequency to match tuner */
if (fe->ops.tuner_ops.get_if_frequency)
fe->ops.tuner_ops.get_if_frequency(fe, &state->if_freq);
if (!state->if_freq)
state->if_freq = 3300000;
[media] mb86a20s: Don't assume a 32.57142MHz clock Now that some devices initialize register 0x2a with different values, add the calculus formula, instead of hardcoding it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 11:15:49 +00:00
pll = (((u64)1) << 34) * state->if_freq;
do_div(pll, 63 * fclk);
pll = (1 << 25) - pll;
rc = mb86a20s_writereg(state, 0x28, 0x2a);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x29, (pll >> 16) & 0xff);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x2a, (pll >> 8) & 0xff);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x2b, pll & 0xff);
if (rc < 0)
goto err;
dev_dbg(&state->i2c->dev, "%s: fclk=%d, IF=%d, clock reg=0x%06llx\n",
__func__, fclk, state->if_freq, (long long)pll);
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
/* pll = freq[Hz] * 2^24/10^6 / 16.285714286 */
pll = state->if_freq * 1677721600L;
do_div(pll, 1628571429L);
rc = mb86a20s_writereg(state, 0x28, 0x20);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x29, (pll >> 16) & 0xff);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x2a, (pll >> 8) & 0xff);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x2b, pll & 0xff);
if (rc < 0)
goto err;
[media] mb86a20s: Don't assume a 32.57142MHz clock Now that some devices initialize register 0x2a with different values, add the calculus formula, instead of hardcoding it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 11:15:49 +00:00
dev_dbg(&state->i2c->dev, "%s: IF=%d, IF reg=0x%06llx\n",
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
__func__, state->if_freq, (long long)pll);
[media] mb86a20s: Fix TS parallel mode changeset 768e6dadd74 caused a regression on using mb86a20s in parallel mode, as the parallel mode selection got overriden by mb86a20s_init2. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-09 11:53:26 +00:00
if (!state->config->is_serial)
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
regD5 &= ~1;
[media] mb86a20s: Fix TS parallel mode changeset 768e6dadd74 caused a regression on using mb86a20s in parallel mode, as the parallel mode selection got overriden by mb86a20s_init2. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-08-09 11:53:26 +00:00
rc = mb86a20s_writereg(state, 0x50, 0xd5);
if (rc < 0)
goto err;
rc = mb86a20s_writereg(state, 0x51, regD5);
if (rc < 0)
goto err;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
rc = mb86a20s_writeregdata(state, mb86a20s_init2);
if (rc < 0)
goto err;
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
err:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
if (rc < 0) {
state->need_init = true;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_info(&state->i2c->dev,
"mb86a20s: Init failed. Will try again later\n");
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
} else {
state->need_init = false;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "Initialization succeeded.\n");
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
}
return rc;
}
static int mb86a20s_set_frontend(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
int rc, if_freq;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
if (!c->isdbt_layer_enabled)
c->isdbt_layer_enabled = 7;
if (c->isdbt_layer_enabled == 1)
state->bw = MB86A20S_1SEG;
else if (c->isdbt_partial_reception)
state->bw = MB86A20S_13SEG_PARTIAL;
else
state->bw = MB86A20S_13SEG;
if (c->inversion == INVERSION_ON)
state->inversion = true;
else
state->inversion = false;
if (!c->isdbt_sb_mode) {
state->subchannel = 0;
} else {
[media] mb86a20s: fix audio sub-channel check As reported by Dan Carpenter <dan.carpenter@oracle.com> FYI, there are new smatch warnings show up in: tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next master head: da17d7bda957ae4697b6abc0793f74fb9b50b58f commit: 04fa725e7b1c22c583dd71a8cd85b8d997edfce3 [media] mb86a20s: Implement set_frontend cache logic New smatch warnings: drivers/media/dvb-frontends/mb86a20s.c:1897 mb86a20s_set_frontend() error: buffer overflow 'mb86a20s_subchannel' 8 <= 8 04fa725e Mauro Carvalho Chehab 2013-03-04 1894 if (c->isdbt_sb_subchannel > ARRAY_SIZE(mb86a20s_subchannel)) 04fa725e Mauro Carvalho Chehab 2013-03-04 1895 c->isdbt_sb_subchannel = 0; 04fa725e Mauro Carvalho Chehab 2013-03-04 1896 04fa725e Mauro Carvalho Chehab 2013-03-04 @1897 state->subchannel = mb86a20s_subchannel[c->isdbt_sb_subchannel]; Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-07 23:51:32 +00:00
if (c->isdbt_sb_subchannel >= ARRAY_SIZE(mb86a20s_subchannel))
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
c->isdbt_sb_subchannel = 0;
state->subchannel = mb86a20s_subchannel[c->isdbt_sb_subchannel];
}
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
/*
* Gate should already be opened, but it doesn't hurt to
* double-check
*/
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
fe->ops.tuner_ops.set_params(fe);
[media] mb86a20s: Always reset the frontend with set_frontend Always init the frontend when set_frontend is called. The rationale is: it was noticed that, on some devices, it fails to lock with a different channel. It seems that some other registers need to be restored to its initial state, when the channel changes. As it is better to reset everything, even wasting a few more miliseconds than to loose channel lock, let's change the logic to always reset. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 16:45:31 +00:00
if (fe->ops.tuner_ops.get_if_frequency)
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
fe->ops.tuner_ops.get_if_frequency(fe, &if_freq);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
/*
* 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.
[media] mb86a20s: adjust IF based on what's set on the tuner Instead of hardcoding a fixed IF frequency of 3.3 MHz, use the IF frequency provided by the tuner driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-28 19:45:39 +00:00
*
* It is also needed to change the IF after the initial init.
[media] mb86a20s: Always reset the frontend with set_frontend Always init the frontend when set_frontend is called. The rationale is: it was noticed that, on some devices, it fails to lock with a different channel. It seems that some other registers need to be restored to its initial state, when the channel changes. As it is better to reset everything, even wasting a few more miliseconds than to loose channel lock, let's change the logic to always reset. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 16:45:31 +00:00
*
* HACK: Always init the frontend when set_frontend is called:
* it was noticed that, on some devices, it fails to lock on a
* different channel. So, it is better to reset everything, even
* wasting some time, than to loose channel lock.
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
*/
[media] mb86a20s: Always reset the frontend with set_frontend Always init the frontend when set_frontend is called. The rationale is: it was noticed that, on some devices, it fails to lock with a different channel. It seems that some other registers need to be restored to its initial state, when the channel changes. As it is better to reset everything, even wasting a few more miliseconds than to loose channel lock, let's change the logic to always reset. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 16:45:31 +00:00
mb86a20s_initfe(fe);
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
rc = mb86a20s_writeregdata(state, mb86a20s_reset_reception);
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
mb86a20s_reset_counters(fe);
[media] mb86a20s: cleanup the status at set_frontend() As the device got re-initialized, the stats should vanish until the device gets lock again. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 18:02:23 +00:00
mb86a20s_stats_not_ready(fe);
[media] mb86a20s: improve bit error count for BER Do a better job on setting the bit error counters, in order to have all layer measures to happen in a little less than one second. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-14 23:34:55 +00:00
[media] mb86a20s: Function reorder Reorder functions to have everything related to stats/status read close. That will make the file more organized as other stats routines will be added. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:53:11 +00:00
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
return rc;
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe,
[media] dvb: Get rid of typedev usage for enums The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-07 17:53:52 +00:00
enum fe_status *status)
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
{
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
int rc, status_nr;
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* Get lock */
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
status_nr = mb86a20s_read_status(fe, status);
if (status_nr < 7) {
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
mb86a20s_stats_not_ready(fe);
mb86a20s_reset_frontend_cache(fe);
}
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
if (status_nr < 0) {
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
dev_err(&state->i2c->dev,
"%s: Can't read frontend lock status\n", __func__);
[media] mb86a20s: always initialize a return value In mb86a20s_read_status_and_stats(), when mb86a20s_read_status() fails, the function returns the value in variable rc without initializing it first. Fix this by propagating the error code from variable status_nr. This bug has been found using clang and -Wsometimes-uninitialized warning flag. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-10 16:49:01 +00:00
rc = status_nr;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
goto error;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* Get signal strength */
rc = mb86a20s_read_signal_strength(fe);
if (rc < 0) {
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
dev_err(&state->i2c->dev,
"%s: Can't reset VBER registers.\n", __func__);
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
mb86a20s_stats_not_ready(fe);
mb86a20s_reset_frontend_cache(fe);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
rc = 0; /* Status is OK */
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
goto error;
}
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
if (status_nr >= 7) {
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
/* Get TMCC info*/
rc = mb86a20s_get_frontend(fe);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
if (rc < 0) {
dev_err(&state->i2c->dev,
"%s: Can't get FE TMCC data.\n", __func__);
rc = 0; /* Status is OK */
goto error;
}
/* Get statistics */
[media] mb86a20s: provide CNR stats before FE_HAS_SYNC State 9 means TS started to be output, and it should be associated with FE_HAS_SYNC. The mb86a20scan get CNR statistics at state 7, when frame sync is obtained. As CNR may help to adjust the antenna, provide it earlier. A latter patch could eventually start outputing MER measures earlier, but that would require a bigger change, and probably won't be better than the current way, as the time between changing from state 8 to 9 is generally lower than the time to get the stats collected. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-02 12:06:17 +00:00
rc = mb86a20s_get_stats(fe, status_nr);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
if (rc < 0 && rc != -EBUSY) {
dev_err(&state->i2c->dev,
"%s: Can't get FE statistics.\n", __func__);
rc = 0;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
goto error;
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
}
rc = 0; /* Don't return EBUSY to userspace */
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
}
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
goto ok;
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
error:
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
mb86a20s_stats_not_ready(fe);
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
ok:
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
[media] mb86a20s: add BER measurement Add the methods to read bit error/bit count measurements from mb86a20s. On ISDB-T devices, those reads are done per layer. However, as userspace applications may not be aware of that, add a global measure that will sum the bit errors and bit counts for each layer, storing them into a global value. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:30:07 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
return rc;
}
static int mb86a20s_read_signal_strength_from_cache(struct dvb_frontend *fe,
u16 *strength)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
*strength = c->strength.stat[0].uvalue;
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
return 0;
[media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 10:49:39 +00:00
}
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
static int mb86a20s_tune(struct dvb_frontend *fe,
[media] dvb-core: Don't pass DVBv3 parameters on tune() fops As all parameters are passed via DVBv5 to the frontends, there's no need to pass them again via fops. Also, most drivers weren't using it anyway. So, instead, just pass a parameter to indicate if the hardware algorithm wants the driver to re-tune or not. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-26 20:48:33 +00:00
bool re_tune,
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
unsigned int mode_flags,
unsigned int *delay,
[media] dvb: Get rid of typedev usage for enums The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-07 17:53:52 +00:00
enum fe_status *status)
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
{
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
struct mb86a20s_state *state = fe->demodulator_priv;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
int rc = 0;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
[media] dvb-core: Don't pass DVBv3 parameters on tune() fops As all parameters are passed via DVBv5 to the frontends, there's no need to pass them again via fops. Also, most drivers weren't using it anyway. So, instead, just pass a parameter to indicate if the hardware algorithm wants the driver to re-tune or not. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-26 20:48:33 +00:00
if (re_tune)
[media] mb86a20s: convert set_fontend to use DVBv5 parameters Instead of using dvb_frontend_parameters struct, that were designed for a subset of the supported standards, use the DVBv5 cache information. Actually, this driver needs to fill/use the ISDB-T proprieties. Also, fill the supported delivery systems at dvb_frontend_ops struct. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-26 15:11:51 +00:00
rc = mb86a20s_set_frontend(fe);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
if (!(mode_flags & FE_TUNE_MODE_ONESHOT))
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
mb86a20s_read_status_and_stats(fe, status);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
return rc;
}
static void mb86a20s_release(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
kfree(state);
}
[media] mb86a20s: fix the locking logic On this frontend, it takes a while to start output normal TS data. That only happens on state S9. On S8, the TS output is enabled, but it is not reliable enough. However, the zigzag loop is too fast to let it sync. As, on practical tests, the zigzag software loop doesn't seem to be helping, but just slowing down the tuning, let's switch to hardware algorithm, as the tuners used on such devices are capable of work with frequency drifts without any help from software. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:16:18 +00:00
static int mb86a20s_get_frontend_algo(struct dvb_frontend *fe)
{
return DVBFE_ALGO_HW;
}
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
static struct dvb_frontend_ops mb86a20s_ops;
struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
struct i2c_adapter *i2c)
{
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
struct mb86a20s_state *state;
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
u8 rev;
[media] mb86a20s: don't use state before initializing it As reported by Feng's kbuild test: From: kbuild test robot <fengguang.wu@intel.com> Subject: drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) Date: Wed, 23 Jan 2013 19:30:43 +0800 commit: f66d81b54dac26d4e601d4d7faca53f3bdc98427 [media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: we previously assumed 'state' could be null (see line 705) As, at mb86a20s_attach(), we have an i2c pointer, use it for all printk messages there, instead of state->i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-23 15:22:22 +00:00
dev_dbg(&i2c->dev, "%s called.\n", __func__);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
/* allocate memory for the internal state */
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
state = kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
if (state == NULL) {
[media] mb86a20s: don't use state before initializing it As reported by Feng's kbuild test: From: kbuild test robot <fengguang.wu@intel.com> Subject: drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) Date: Wed, 23 Jan 2013 19:30:43 +0800 commit: f66d81b54dac26d4e601d4d7faca53f3bdc98427 [media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: we previously assumed 'state' could be null (see line 705) As, at mb86a20s_attach(), we have an i2c pointer, use it for all printk messages there, instead of state->i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-23 15:22:22 +00:00
dev_err(&i2c->dev,
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
"%s: unable to allocate memory for state\n", __func__);
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
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) {
[media] mb86a20s: don't use state before initializing it As reported by Feng's kbuild test: From: kbuild test robot <fengguang.wu@intel.com> Subject: drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) Date: Wed, 23 Jan 2013 19:30:43 +0800 commit: f66d81b54dac26d4e601d4d7faca53f3bdc98427 [media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: we previously assumed 'state' could be null (see line 705) As, at mb86a20s_attach(), we have an i2c pointer, use it for all printk messages there, instead of state->i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-23 15:22:22 +00:00
dev_info(&i2c->dev,
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
"Detected a Fujitsu mb86a20s frontend\n");
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
} else {
[media] mb86a20s: don't use state before initializing it As reported by Feng's kbuild test: From: kbuild test robot <fengguang.wu@intel.com> Subject: drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) Date: Wed, 23 Jan 2013 19:30:43 +0800 commit: f66d81b54dac26d4e601d4d7faca53f3bdc98427 [media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: potential null dereference 'state'. (kzalloc returns null) drivers/media/dvb-frontends/mb86a20s.c:706 mb86a20s_attach() error: we previously assumed 'state' could be null (see line 705) As, at mb86a20s_attach(), we have an i2c pointer, use it for all printk messages there, instead of state->i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-23 15:22:22 +00:00
dev_dbg(&i2c->dev,
[media] mb86a20s: convert it to use dev_info/dev_err/dev_dbg Instead of having its own set of macros, use the Kernel default ones for debug, error and info. While here, do some cleanup on the debug printk's. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 11:13:08 +00:00
"Frontend revision %d is unknown - aborting.\n",
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
rev);
goto error;
}
return &state->frontend;
error:
kfree(state);
return NULL;
}
EXPORT_SYMBOL(mb86a20s_attach);
static struct dvb_frontend_ops mb86a20s_ops = {
[media] mb86a20s: convert set_fontend to use DVBv5 parameters Instead of using dvb_frontend_parameters struct, that were designed for a subset of the supported standards, use the DVBv5 cache information. Actually, this driver needs to fill/use the ISDB-T proprieties. Also, fill the supported delivery systems at dvb_frontend_ops struct. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-26 15:11:51 +00:00
.delsys = { SYS_ISDBT },
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
/* Use dib8000 values per default */
.info = {
.name = "Fujitsu mb86A20s",
[media] mb86a20s: Implement set_frontend cache logic Up to now, the driver was simply assuming TV mode, 13 segs. Implement the logic to control the ISDB operational mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04 10:10:06 +00:00
.caps = FE_CAN_RECOVER |
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
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,
[media] mb86a20s: convert set_fontend to use DVBv5 parameters Instead of using dvb_frontend_parameters struct, that were designed for a subset of the supported standards, use the DVBv5 cache information. Actually, this driver needs to fill/use the ISDB-T proprieties. Also, fill the supported delivery systems at dvb_frontend_ops struct. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-26 15:11:51 +00:00
.set_frontend = mb86a20s_set_frontend,
[media] mb86a20s: calculate statistics at .read_status() Instead of providing separate callbacks to read the several FE stats properties, the better seems to use just one method that will: - Read lock status; - Read signal strength; - if locked, get TMCC data; - if locked, get DVB statistics. As the DVB frontend thread will call this read_status callback on every 3 seconds, and userspace can even call it earlier, all stats data and layers layout will be updated together if available, with is a good thing. Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-22 15:28:31 +00:00
.read_status = mb86a20s_read_status_and_stats,
.read_signal_strength = mb86a20s_read_signal_strength_from_cache,
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
.tune = mb86a20s_tune,
[media] mb86a20s: fix the locking logic On this frontend, it takes a while to start output normal TS data. That only happens on state S9. On S8, the TS output is enabled, but it is not reliable enough. However, the zigzag loop is too fast to let it sync. As, on practical tests, the zigzag software loop doesn't seem to be helping, but just slowing down the tuning, let's switch to hardware algorithm, as the tuners used on such devices are capable of work with frequency drifts without any help from software. Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-04 13:16:18 +00:00
.get_frontend_algo = mb86a20s_get_frontend_algo,
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
};
MODULE_DESCRIPTION("DVB Frontend module for Fujitsu mb86A20s hardware");
[media, edac] Change my email address There are several left overs with my old email address. Remove their occurrences and add myself at CREDITS, to allow people to be able to reach me on my new addresses. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-07 10:03:07 +00:00
MODULE_AUTHOR("Mauro Carvalho Chehab");
[media] add a driver for mb86a20s This adds the trivial bits to mb86a20s. As the driver won't touch at the channel/layer parameters, this may not be enough for receiving all channels, especially ISDB-Tsb, but the driver worked properly for receiving video channels on my tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-09-27 23:52:43 +00:00
MODULE_LICENSE("GPL");
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