Commit 82cd0b27 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

Revert "[media] v4l2: Add a V4L2 driver for SI476X MFD"

As requested by Andrey Smirnov <andrew.smirnov@gmail.com>, revert
this patch.

This reverts commit 30bac911.

Conflicts:
	drivers/media/radio/Kconfig
	drivers/media/radio/radio-si476x.c
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 098af4bd
SI476x Driver Readme
------------------------------------------------
Copyright (C) 2013 Andrey Smirnov <andrew.smirnov@gmail.com>
TODO for the driver
------------------------------
- According to the SiLabs' datasheet it is possible to update the
firmware of the radio chip in the run-time, thus bringing it to the
most recent version. Unfortunately I couldn't find any mentioning of
the said firmware update for the old chips that I tested the driver
against, so for chips like that the driver only exposes the old
functionality.
Parameters exposed over debugfs
-------------------------------
SI476x allow user to get multiple characteristics that can be very
useful for EoL testing/RF performance estimation, parameters that have
very little to do with V4L2 subsystem. Such parameters are exposed via
debugfs and can be accessed via regular file I/O operations.
The drivers exposes following files:
* /sys/kernel/debug/<device-name>/acf
This file contains ACF(Automatically Controlled Features) status
information. The contents of the file is binary data of the
following layout:
Offset | Name | Description
====================================================================
0x00 | blend_int | Flag, set when stereo separation has
| | crossed below the blend threshold
--------------------------------------------------------------------
0x01 | hblend_int | Flag, set when HiBlend cutoff
| | frequency is lower than threshold
--------------------------------------------------------------------
0x02 | hicut_int | Flag, set when HiCut cutoff
| | frequency is lower than threshold
--------------------------------------------------------------------
0x03 | chbw_int | Flag, set when channel filter
| | bandwidth is less than threshold
--------------------------------------------------------------------
0x04 | softmute_int | Flag indicating that softmute
| | attenuation has increased above
| | softmute threshold
--------------------------------------------------------------------
0x05 | smute | 0 - Audio is not soft muted
| | 1 - Audio is soft muted
--------------------------------------------------------------------
0x06 | smattn | Soft mute attenuation level in dB
--------------------------------------------------------------------
0x07 | chbw | Channel filter bandwidth in kHz
--------------------------------------------------------------------
0x08 | hicut | HiCut cutoff frequency in units of
| | 100Hz
--------------------------------------------------------------------
0x09 | hiblend | HiBlend cutoff frequency in units
| | of 100 Hz
--------------------------------------------------------------------
0x10 | pilot | 0 - Stereo pilot is not present
| | 1 - Stereo pilot is present
--------------------------------------------------------------------
0x11 | stblend | Stereo blend in %
--------------------------------------------------------------------
* /sys/kernel/debug/<device-name>/rds_blckcnt
This file contains statistics about RDS receptions. It's binary data
has the following layout:
Offset | Name | Description
====================================================================
0x00 | expected | Number of expected RDS blocks
--------------------------------------------------------------------
0x02 | received | Number of received RDS blocks
--------------------------------------------------------------------
0x04 | uncorrectable | Number of uncorrectable RDS blocks
--------------------------------------------------------------------
* /sys/kernel/debug/<device-name>/agc
This file contains information about parameters pertaining to
AGC(Automatic Gain Control)
The layout is:
Offset | Name | Description
====================================================================
0x00 | mxhi | 0 - FM Mixer PD high threshold is
| | not tripped
| | 1 - FM Mixer PD high threshold is
| | tripped
--------------------------------------------------------------------
0x01 | mxlo | ditto for FM Mixer PD low
--------------------------------------------------------------------
0x02 | lnahi | ditto for FM LNA PD high
--------------------------------------------------------------------
0x03 | lnalo | ditto for FM LNA PD low
--------------------------------------------------------------------
0x04 | fmagc1 | FMAGC1 attenuator resistance
| | (see datasheet for more detail)
--------------------------------------------------------------------
0x05 | fmagc2 | ditto for FMAGC2
--------------------------------------------------------------------
0x06 | pgagain | PGA gain in dB
--------------------------------------------------------------------
0x07 | fmwblang | FM/WB LNA Gain in dB
--------------------------------------------------------------------
* /sys/kernel/debug/<device-name>/rsq
This file contains information about parameters pertaining to
RSQ(Received Signal Quality)
The layout is:
Offset | Name | Description
====================================================================
0x00 | multhint | 0 - multipath value has not crossed
| | the Multipath high threshold
| | 1 - multipath value has crossed
| | the Multipath high threshold
--------------------------------------------------------------------
0x01 | multlint | ditto for Multipath low threshold
--------------------------------------------------------------------
0x02 | snrhint | 0 - received signal's SNR has not
| | crossed high threshold
| | 1 - received signal's SNR has
| | crossed high threshold
--------------------------------------------------------------------
0x03 | snrlint | ditto for low threshold
--------------------------------------------------------------------
0x04 | rssihint | ditto for RSSI high threshold
--------------------------------------------------------------------
0x05 | rssilint | ditto for RSSI low threshold
--------------------------------------------------------------------
0x06 | bltf | Flag indicating if seek command
| | reached/wrapped seek band limit
--------------------------------------------------------------------
0x07 | snr_ready | Indicates that SNR metrics is ready
--------------------------------------------------------------------
0x08 | rssiready | ditto for RSSI metrics
--------------------------------------------------------------------
0x09 | injside | 0 - Low-side injection is being used
| | 1 - High-side injection is used
--------------------------------------------------------------------
0x10 | afcrl | Flag indicating if AFC rails
--------------------------------------------------------------------
0x11 | valid | Flag indicating if channel is valid
--------------------------------------------------------------------
0x12 | readfreq | Current tuned frequency
--------------------------------------------------------------------
0x14 | freqoff | Singed frequency offset in units of
| | 2ppm
--------------------------------------------------------------------
0x15 | rssi | Signed value of RSSI in dBuV
--------------------------------------------------------------------
0x16 | snr | Signed RF SNR in dB
--------------------------------------------------------------------
0x17 | issi | Signed Image Strength Signal
| | indicator
--------------------------------------------------------------------
0x18 | lassi | Signed Low side adjacent Channel
| | Strength indicator
--------------------------------------------------------------------
0x19 | hassi | ditto fpr High side
--------------------------------------------------------------------
0x20 | mult | Multipath indicator
--------------------------------------------------------------------
0x21 | dev | Frequency deviation
--------------------------------------------------------------------
0x24 | assi | Adjascent channel SSI
--------------------------------------------------------------------
0x25 | usn | Ultrasonic noise indicator
--------------------------------------------------------------------
0x26 | pilotdev | Pilot deviation in units of 100 Hz
--------------------------------------------------------------------
0x27 | rdsdev | ditto for RDS
--------------------------------------------------------------------
0x28 | assidev | ditto for ASSI
--------------------------------------------------------------------
0x29 | strongdev | Frequency deviation
--------------------------------------------------------------------
0x30 | rdspi | RDS PI code
--------------------------------------------------------------------
* /sys/kernel/debug/<device-name>/rsq_primary
This file contains information about parameters pertaining to
RSQ(Received Signal Quality) for primary tuner only. Layout is as
the one above.
...@@ -18,23 +18,6 @@ config RADIO_SI470X ...@@ -18,23 +18,6 @@ config RADIO_SI470X
source "drivers/media/radio/si470x/Kconfig" source "drivers/media/radio/si470x/Kconfig"
config RADIO_SI476X
tristate "Silicon Laboratories Si476x I2C FM Radio"
depends on I2C && VIDEO_V4L2 && SND && SND_SOC
select MFD_CORE
select MFD_SI476X_CORE
select SND_SOC_SI476X
---help---
Choose Y here if you have this FM radio chip.
In order to control your radio card, you will need to use programs
that are compatible with the Video For Linux 2 API. Information on
this API and pointers to "v4l2" programs may be found at
<file:Documentation/video4linux/API.html>.
To compile this driver as a module, choose M here: the
module will be called radio-si476x.
config USB_MR800 config USB_MR800
tristate "AverMedia MR 800 USB FM radio support" tristate "AverMedia MR 800 USB FM radio support"
depends on USB && VIDEO_V4L2 depends on USB && VIDEO_V4L2
......
...@@ -19,7 +19,6 @@ obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o ...@@ -19,7 +19,6 @@ obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o
obj-$(CONFIG_RADIO_TRUST) += radio-trust.o obj-$(CONFIG_RADIO_TRUST) += radio-trust.o
obj-$(CONFIG_I2C_SI4713) += si4713-i2c.o obj-$(CONFIG_I2C_SI4713) += si4713-i2c.o
obj-$(CONFIG_RADIO_SI4713) += radio-si4713.o obj-$(CONFIG_RADIO_SI4713) += radio-si4713.o
obj-$(CONFIG_RADIO_SI476X) += radio-si476x.o
obj-$(CONFIG_RADIO_MIROPCM20) += radio-miropcm20.o obj-$(CONFIG_RADIO_MIROPCM20) += radio-miropcm20.o
obj-$(CONFIG_USB_DSBR) += dsbr100.o obj-$(CONFIG_USB_DSBR) += dsbr100.o
obj-$(CONFIG_RADIO_SI470X) += si470x/ obj-$(CONFIG_RADIO_SI470X) += si470x/
......
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