diff options
Diffstat (limited to 'Documentation/media/v4l-drivers/si476x.rst')
| -rw-r--r-- | Documentation/media/v4l-drivers/si476x.rst | 116 |
1 files changed, 62 insertions, 54 deletions
diff --git a/Documentation/media/v4l-drivers/si476x.rst b/Documentation/media/v4l-drivers/si476x.rst index d5c07bb7524d..677512566f15 100644 --- a/Documentation/media/v4l-drivers/si476x.rst +++ b/Documentation/media/v4l-drivers/si476x.rst @@ -31,31 +31,33 @@ The drivers exposes following files: information. The contents of the file is binary data of the following layout: + .. tabularcolumns:: |p{7ex}|p{12ex}|L| + ============= ============== ==================================== - Offset Name Description + Offset Name Description ============= ============== ==================================== - 0x00 blend_int Flag, set when stereo separation has + 0x00 blend_int Flag, set when stereo separation has crossed below the blend threshold - 0x01 hblend_int Flag, set when HiBlend cutoff + 0x01 hblend_int Flag, set when HiBlend cutoff frequency is lower than threshold - 0x02 hicut_int Flag, set when HiCut cutoff + 0x02 hicut_int Flag, set when HiCut cutoff frequency is lower than threshold - 0x03 chbw_int Flag, set when channel filter + 0x03 chbw_int Flag, set when channel filter bandwidth is less than threshold - 0x04 softmute_int Flag indicating that softmute + 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 + 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 + 0x09 hiblend HiBlend cutoff frequency in units of 100 Hz - 0x10 pilot 0 - Stereo pilot is not present + 0x10 pilot 0 - Stereo pilot is not present 1 - Stereo pilot is present - 0x11 stblend Stereo blend in % + 0x11 stblend Stereo blend in % ============= ============== ==================================== @@ -63,12 +65,14 @@ The drivers exposes following files: This file contains statistics about RDS receptions. It's binary data has the following layout: + .. tabularcolumns:: |p{7ex}|p{12ex}|L| + ============= ============== ==================================== - Offset Name Description + Offset Name Description ============= ============== ==================================== - 0x00 expected Number of expected RDS blocks - 0x02 received Number of received RDS blocks - 0x04 uncorrectable Number of uncorrectable RDS blocks + 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 @@ -77,21 +81,23 @@ The drivers exposes following files: The layout is: + .. tabularcolumns:: |p{7ex}|p{12ex}|L| + ============= ============== ==================================== - Offset Name Description + Offset Name Description ============= ============== ==================================== - 0x00 mxhi 0 - FM Mixer PD high threshold is + 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 + 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 + 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 @@ -100,48 +106,50 @@ The drivers exposes following files: The layout is: + .. tabularcolumns:: |p{7ex}|p{12ex}|p{60ex}| + ============= ============== ==================================== - Offset Name Description + Offset Name Description ============= ============== ==================================== - 0x00 multhint 0 - multipath value has not crossed + 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 + 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 + 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 + 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 Signed frequency offset in units of + 0x10 afcrl Flag indicating if AFC rails + 0x11 valid Flag indicating if channel is valid + 0x12 readfreq Current tuned frequency + 0x14 freqoff Signed 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 + 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 + 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 Adjacent 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 + 0x19 hassi ditto fpr High side + 0x20 mult Multipath indicator + 0x21 dev Frequency deviation + 0x24 assi Adjacent 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 |