Re: [PATCH V3 4/5] [Documentation] Media: Update docs for V4L2 FM new features
On Wed May 2 2012 23:42:30 manjunatha_ha...@ti.com wrote: From: Manjunatha Halli x0130...@ti.com The list of new features - 1) New control class for FM RX 2) New FM RX CID's - De-Emphasis filter mode and RDS AF switch 3) New FM TX CID - RDS Alternate frequency set. Signed-off-by: Manjunatha Halli x0130...@ti.com --- Documentation/DocBook/media/v4l/compat.xml |3 + Documentation/DocBook/media/v4l/controls.xml | 78 Documentation/DocBook/media/v4l/dev-rds.xml|5 +- .../DocBook/media/v4l/vidioc-g-ext-ctrls.xml |7 ++ .../DocBook/media/v4l/vidioc-s-hw-freq-seek.xml|7 ++- 5 files changed, 97 insertions(+), 3 deletions(-) diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index bce97c5..df1f345 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -2311,6 +2311,9 @@ more information./para paraAdded FM Modulator (FM TX) Extended Control Class: constantV4L2_CTRL_CLASS_FM_TX/constant and their Control IDs./para /listitem listitem + paraAdded FM Receiver (FM RX) Extended Control Class: constantV4L2_CTRL_CLASS_FM_RX/constant and their Control IDs./para + /listitem + listitem paraAdded Remote Controller chapter, describing the default Remote Controller mapping for media devices./para /listitem /orderedlist diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index b84f25e..b6e4db2 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3018,6 +3018,12 @@ to find receivers which can scroll strings sized as 32 x N or 64 x N characters. with steps of 32 or 64 characters. The result is it must always contain a string with size multiple of 32 or 64. /entry /row row + entry spanname=idconstantV4L2_CID_RDS_TX_AF_FREQ/constantnbsp;/entry + entryinteger/entry + /row + rowentry spanname=descrSets the RDS Alternate Frequency value which allows a receiver to re-tune to a different frequency providing the same station when the first signal becomes too weak (e.g., when moving out of range). /entry + /row + row entry spanname=idconstantV4L2_CID_AUDIO_LIMITER_ENABLED/constantnbsp;/entry entryboolean/entry /row @@ -3146,6 +3152,78 @@ manually or automatically if set to zero. Unit, range and step are driver-specif xref linkend=en50067 / document, from CENELEC./para /section +section id=fm-rx-controls + titleFM Receiver Control Reference/title + + paraThe FM Receiver (FM_RX) class includes controls for common features of +FM Reception capable devices. Currently this class includes parameter for Alternate +frequency./para Remove the last sentence (Currently this...). It serves no purpose and would only need to be updated whenever a control is added. + + table pgwide=1 frame=none id=fm-rx-control-id + titleFM_RX Control IDs/title + + tgroup cols=4 +colspec colname=c1 colwidth=1* / +colspec colname=c2 colwidth=6* / +colspec colname=c3 colwidth=2* / +colspec colname=c4 colwidth=6* / +spanspec namest=c1 nameend=c2 spanname=id / +spanspec namest=c2 nameend=c4 spanname=descr / +thead + row +entry spanname=id align=leftID/entry +entry align=leftType/entry + /rowrow rowsep=1entry spanname=descr align=leftDescription/entry + /row +/thead +tbody valign=top + rowentry/entry/row + row +entry spanname=idconstantV4L2_CID_FM_RX_CLASS/constantnbsp;/entry +entryclass/entry + /rowrowentry spanname=descrThe FM_RX class +descriptor. Calling VIDIOC-QUERYCTRL; for this control will return a +description of this control class./entry + /row + row +entry spanname=idconstantV4L2_CID_RDS_AF_SWITCH/constantnbsp;/entry +entryboolean/entry + /row + rowentry spanname=descrEnable/Disable's FM RX RDS Alternate frequency feature. When enabled driver will decode the RDS AF field and tries to switch to this AF frequency once current frequency RSSI level goes below threshold. Value of G_FREQUENCY is unchanged since both original frequency and AF frequency share the same PI code./entry Small improvement: Enable/Disable's - Enable or Disable the I'd also remove the FM RX part: it's already obvious that we are in the FM RX class of controls. When enabled - When enabled the once current - once the current below threshold - below the threshold I don't understand what you mean with the last sentence: Value of G_FREQUENCY Shouldn't it
[PATCH V3 4/5] [Documentation] Media: Update docs for V4L2 FM new features
From: Manjunatha Halli x0130...@ti.com The list of new features - 1) New control class for FM RX 2) New FM RX CID's - De-Emphasis filter mode and RDS AF switch 3) New FM TX CID - RDS Alternate frequency set. Signed-off-by: Manjunatha Halli x0130...@ti.com --- Documentation/DocBook/media/v4l/compat.xml |3 + Documentation/DocBook/media/v4l/controls.xml | 78 Documentation/DocBook/media/v4l/dev-rds.xml|5 +- .../DocBook/media/v4l/vidioc-g-ext-ctrls.xml |7 ++ .../DocBook/media/v4l/vidioc-s-hw-freq-seek.xml|7 ++- 5 files changed, 97 insertions(+), 3 deletions(-) diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index bce97c5..df1f345 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -2311,6 +2311,9 @@ more information./para paraAdded FM Modulator (FM TX) Extended Control Class: constantV4L2_CTRL_CLASS_FM_TX/constant and their Control IDs./para /listitem listitem + paraAdded FM Receiver (FM RX) Extended Control Class: constantV4L2_CTRL_CLASS_FM_RX/constant and their Control IDs./para + /listitem + listitem paraAdded Remote Controller chapter, describing the default Remote Controller mapping for media devices./para /listitem /orderedlist diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index b84f25e..b6e4db2 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3018,6 +3018,12 @@ to find receivers which can scroll strings sized as 32 x N or 64 x N characters. with steps of 32 or 64 characters. The result is it must always contain a string with size multiple of 32 or 64. /entry /row row + entry spanname=idconstantV4L2_CID_RDS_TX_AF_FREQ/constantnbsp;/entry + entryinteger/entry + /row + rowentry spanname=descrSets the RDS Alternate Frequency value which allows a receiver to re-tune to a different frequency providing the same station when the first signal becomes too weak (e.g., when moving out of range). /entry + /row + row entry spanname=idconstantV4L2_CID_AUDIO_LIMITER_ENABLED/constantnbsp;/entry entryboolean/entry /row @@ -3146,6 +3152,78 @@ manually or automatically if set to zero. Unit, range and step are driver-specif xref linkend=en50067 / document, from CENELEC./para /section +section id=fm-rx-controls + titleFM Receiver Control Reference/title + + paraThe FM Receiver (FM_RX) class includes controls for common features of +FM Reception capable devices. Currently this class includes parameter for Alternate +frequency./para + + table pgwide=1 frame=none id=fm-rx-control-id + titleFM_RX Control IDs/title + + tgroup cols=4 +colspec colname=c1 colwidth=1* / +colspec colname=c2 colwidth=6* / +colspec colname=c3 colwidth=2* / +colspec colname=c4 colwidth=6* / +spanspec namest=c1 nameend=c2 spanname=id / +spanspec namest=c2 nameend=c4 spanname=descr / +thead + row +entry spanname=id align=leftID/entry +entry align=leftType/entry + /rowrow rowsep=1entry spanname=descr align=leftDescription/entry + /row +/thead +tbody valign=top + rowentry/entry/row + row +entry spanname=idconstantV4L2_CID_FM_RX_CLASS/constantnbsp;/entry +entryclass/entry + /rowrowentry spanname=descrThe FM_RX class +descriptor. Calling VIDIOC-QUERYCTRL; for this control will return a +description of this control class./entry + /row + row +entry spanname=idconstantV4L2_CID_RDS_AF_SWITCH/constantnbsp;/entry +entryboolean/entry + /row + rowentry spanname=descrEnable/Disable's FM RX RDS Alternate frequency feature. When enabled driver will decode the RDS AF field and tries to switch to this AF frequency once current frequency RSSI level goes below threshold. Value of G_FREQUENCY is unchanged since both original frequency and AF frequency share the same PI code./entry + /row + row + entry spanname=idconstantV4L2_CID_TUNE_DEEMPHASIS/constantnbsp;/entry + entryinteger/entry + /row + row id=v4l2-deemphasisentry spanname=descrConfigures the de-emphasis value for reception. +A pre-emphasis filter is applied to the broadcast to accentuate the high audio frequencies. +Depending on the region, a time constant of either 50 or 75 useconds is used. The enumnbsp;v4l2_preemphasis +defines possible values for pre-emphasis. Here they are:/entry + /rowrow + entrytbl spanname=descr cols=2 + tbody valign=top +
