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[4/5] doc_rst: media: New SDR formats SC16, SC18 & SC20

Message ID 1478706284-59134-5-git-send-email-ramesh.shanmugasundaram@bp.renesas.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ramesh Shanmugasundaram Nov. 9, 2016, 3:44 p.m. UTC 
This patch adds documentation for the three new SDR formats

V4L2_SDR_FMT_SCU16BE
V4L2_SDR_FMT_SCU18BE
V4L2_SDR_FMT_SCU20BE

Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
---
 .../media/uapi/v4l/pixfmt-sdr-scu16be.rst          | 80 ++++++++++++++++++++++
 .../media/uapi/v4l/pixfmt-sdr-scu18be.rst          | 80 ++++++++++++++++++++++
 .../media/uapi/v4l/pixfmt-sdr-scu20be.rst          | 80 ++++++++++++++++++++++
 Documentation/media/uapi/v4l/sdr-formats.rst       |  3 +
 4 files changed, 243 insertions(+)
 create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
 create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst
 create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst

Comments

Laurent Pinchart Nov. 10, 2016, 8:18 a.m. UTC | #1 
Hi Ramesh,

Thank you for the patch.

On Wednesday 09 Nov 2016 15:44:43 Ramesh Shanmugasundaram wrote:
> This patch adds documentation for the three new SDR formats
> 
> V4L2_SDR_FMT_SCU16BE
> V4L2_SDR_FMT_SCU18BE
> V4L2_SDR_FMT_SCU20BE
> 
> Signed-off-by: Ramesh Shanmugasundaram
> <ramesh.shanmugasundaram@bp.renesas.com>
> ---
>  .../media/uapi/v4l/pixfmt-sdr-scu16be.rst          | 80 ++++++++++++++++++
>  .../media/uapi/v4l/pixfmt-sdr-scu18be.rst          | 80 ++++++++++++++++++
>  .../media/uapi/v4l/pixfmt-sdr-scu20be.rst          | 80 ++++++++++++++++++
>  Documentation/media/uapi/v4l/sdr-formats.rst       |  3 +
>  4 files changed, 243 insertions(+)
>  create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
>  create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst
>  create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst
> 
> diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
> b/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst new file mode 100644
> index 0000000..7525378
> --- /dev/null
> +++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
> @@ -0,0 +1,80 @@
> +.. -*- coding: utf-8; mode: rst -*-
> +
> +.. _V4L2-SDR-FMT-SCU16BE:
> +
> +******************************
> +V4L2_SDR_FMT_SCU16BE ('SC16')
> +******************************
> +
> +Sliced complex unsigned 16-bit big endian IQ sample
> +
> +Description
> +===========
> +
> +This format contains a sequence of complex number samples. Each complex
> +number consist of two parts called In-phase and Quadrature (IQ). Both I
> +and Q are represented as a 16 bit unsigned big endian number stored in
> +32 bit space. The remaining unused bits within the 32 bit space will be
> +padded with 0. I value starts first and Q value starts at an offset
> +equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
> +the 16 bits, bit 15:2 (14 bit) is data and bit 1:0 (2 bit) can be any
> +value.

I've pinged Antti and Hans regarding single buffer vs. multiplanar, let's try 
to reach an agreement there.

> +
> +**Byte Order.**
> +Each cell is one byte.
> +
> +.. flat-table::
> +    :header-rows:  1
> +    :stub-columns: 0
> +
> +    * -  Offset:
> +

In the meantime, you can remove all the blank lines between table rows :-)

> +      -  Byte B0
> +
> +      -  Byte B1
> +
> +      -  Byte B2
> +
> +      -  Byte B3

[snip]
diff mbox

Patch

diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
new file mode 100644
index 0000000..7525378
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
@@ -0,0 +1,80 @@ 
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU16BE:
+
+******************************
+V4L2_SDR_FMT_SCU16BE ('SC16')
+******************************
+
+Sliced complex unsigned 16-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 16 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 16 bits, bit 15:2 (14 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+    :header-rows:  1
+    :stub-columns: 0
+
+    * -  Offset:
+
+      -  Byte B0
+
+      -  Byte B1
+
+      -  Byte B2
+
+      -  Byte B3
+
+    * -  start + 0:
+
+      -  I'\ :sub:`0[13:6]`
+
+      -  I'\ :sub:`0[5:0]; B1[1:0]=pad`
+
+      -  pad
+
+      -  pad
+
+    * -  start + 4:
+
+      -  I'\ :sub:`1[13:6]`
+
+      -  I'\ :sub:`1[5:0]; B1[1:0]=pad`
+
+      -  pad
+
+      -  pad
+
+    * -  ...
+
+    * - start + offset:
+
+      -  Q'\ :sub:`0[13:6]`
+
+      -  Q'\ :sub:`0[5:0]; B1[1:0]=pad`
+
+      -  pad
+
+      -  pad
+
+    * - start + offset + 4:
+
+      -  Q'\ :sub:`1[13:6]`
+
+      -  Q'\ :sub:`1[5:0]; B1[1:0]=pad`
+
+      -  pad
+
+      -  pad
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst
new file mode 100644
index 0000000..0ce714d
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst
@@ -0,0 +1,80 @@ 
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU18BE:
+
+******************************
+V4L2_SDR_FMT_SCU18BE ('SC18')
+******************************
+
+Sliced complex unsigned 18-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 18 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 18 bits, bit 17:2 (16 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+    :header-rows:  1
+    :stub-columns: 0
+
+    * -  Offset:
+
+      -  Byte B0
+
+      -  Byte B1
+
+      -  Byte B2
+
+      -  Byte B3
+
+    * -  start + 0:
+
+      -  I'\ :sub:`0[17:10]`
+
+      -  I'\ :sub:`0[9:2]`
+
+      -  I'\ :sub:`0[1:0]; B2[5:0]=pad`
+
+      -  pad
+
+    * -  start + 4:
+
+      -  I'\ :sub:`1[17:10]`
+
+      -  I'\ :sub:`1[9:2]`
+
+      -  I'\ :sub:`1[1:0]; B2[5:0]=pad`
+
+      -  pad
+
+    * -  ...
+
+    * - start + offset:
+
+      -  Q'\ :sub:`0[17:10]`
+
+      -  Q'\ :sub:`0[9:2]`
+
+      -  Q'\ :sub:`0[1:0]; B2[5:0]=pad`
+
+      -  pad
+
+    * - start + offset + 4:
+
+      -  Q'\ :sub:`1[17:10]`
+
+      -  Q'\ :sub:`1[9:2]`
+
+      -  Q'\ :sub:`1[1:0]; B2[5:0]=pad`
+
+      -  pad
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst
new file mode 100644
index 0000000..ff2fe51
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst
@@ -0,0 +1,80 @@ 
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU20BE:
+
+******************************
+V4L2_SDR_FMT_SCU20BE ('SC20')
+******************************
+
+Sliced complex unsigned 20-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 20 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 20 bits, bit 19:2 (18 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+    :header-rows:  1
+    :stub-columns: 0
+
+    * -  Offset:
+
+      -  Byte B0
+
+      -  Byte B1
+
+      -  Byte B2
+
+      -  Byte B3
+
+    * -  start + 0:
+
+      -  I'\ :sub:`0[19:12]`
+
+      -  I'\ :sub:`0[11:4]`
+
+      -  I'\ :sub:`0[3:0]; B2[3:0]=pad`
+
+      -  pad
+
+    * -  start + 4:
+
+      -  I'\ :sub:`1[19:12]`
+
+      -  I'\ :sub:`1[11:4]`
+
+      -  I'\ :sub:`1[3:0]; B2[3:0]=pad`
+
+      -  pad
+
+    * -  ...
+
+    * - start + offset:
+
+      -  Q'\ :sub:`0[19:12]`
+
+      -  Q'\ :sub:`0[11:4]`
+
+      -  Q'\ :sub:`0[3:0]; B2[3:0]=pad`
+
+      -  pad
+
+    * - start + offset + 4:
+
+      -  Q'\ :sub:`1[19:12]`
+
+      -  Q'\ :sub:`1[11:4]`
+
+      -  Q'\ :sub:`1[3:0]; B2[3:0]=pad`
+
+      -  pad
diff --git a/Documentation/media/uapi/v4l/sdr-formats.rst b/Documentation/media/uapi/v4l/sdr-formats.rst
index f863c08..4c01cf9 100644
--- a/Documentation/media/uapi/v4l/sdr-formats.rst
+++ b/Documentation/media/uapi/v4l/sdr-formats.rst
@@ -17,3 +17,6 @@  These formats are used for :ref:`SDR <sdr>` interface only.
     pixfmt-sdr-cs08
     pixfmt-sdr-cs14le
     pixfmt-sdr-ru12le
+    pixfmt-sdr-scu16be
+    pixfmt-sdr-scu18be
+    pixfmt-sdr-scu20be