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@xxxxxxxxxxxxxx>
---
.../media/uapi/v4l/pixfmt-sdr-scu16be.rst | 44 ++++++++++++++++++++
.../media/uapi/v4l/pixfmt-sdr-scu18be.rst | 48 ++++++++++++++++++++++
.../media/uapi/v4l/pixfmt-sdr-scu20be.rst | 48 ++++++++++++++++++++++
Documentation/media/uapi/v4l/sdr-formats.rst | 3 ++
4 files changed, 143 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..d6c2123
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu16be.rst
@@ -0,0 +1,44 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU16BE:
+
+******************************
+V4L2_SDR_FMT_SCU16BE ('SCU16')
+******************************
+
+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. I value
+starts first and Q value starts at an offset equalling half of the buffer
+size. 14 bit data is stored in 16 bit space with unused stuffed bits
+padded with 0.
+
+**Byte Order.**
+Each cell is one byte.
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ - .. row 1
+
+ - start + 0:
+
+ - I'\ :sub:`0[D13:D6]`
+
+ - I'\ :sub:`0[D5:D0]`
+
+ - .. row 2
+
+ - start + buffer_size/2:
+
+ - Q'\ :sub:`0[D13:D6]`
+
+ - Q'\ :sub:`0[D5:D0]`
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..e6e0aff
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu18be.rst
@@ -0,0 +1,48 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU18BE:
+
+******************************
+V4L2_SDR_FMT_SCU18BE ('SCU18')
+******************************
+
+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. I value
+starts first and Q value starts at an offset equalling half of the buffer
+size. 16 bit data is stored in 18 bit space with unused stuffed bits
+padded with 0.
+
+**Byte Order.**
+Each cell is one byte.
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ - .. row 1
+
+ - start + 0:
+
+ - I'\ :sub:`0[D17:D10]`
+
+ - I'\ :sub:`0[D9:D2]`
+
+ - I'\ :sub:`0[D1:D0]`
+
+ - .. row 2
+
+ - start + buffer_size/2:
+
+ - Q'\ :sub:`0[D17:D10]`
+
+ - Q'\ :sub:`0[D9:D2]`
+
+ - Q'\ :sub:`0[D1:D0]`
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..374e0a3
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-scu20be.rst
@@ -0,0 +1,48 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-SCU20BE:
+
+******************************
+V4L2_SDR_FMT_SCU20BE ('SCU20')
+******************************
+
+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. I value
+starts first and Q value starts at an offset equalling half of the buffer
+size. 18 bit data is stored in 20 bit space with unused stuffed bits
+padded with 0.
+
+**Byte Order.**
+Each cell is one byte.
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ - .. row 1
+
+ - start + 0:
+
+ - I'\ :sub:`0[D19:D12]`
+
+ - I'\ :sub:`0[D11:D4]`
+
+ - I'\ :sub:`0[D3:D0]`
+
+ - .. row 2
+
+ - start + buffer_size/2:
+
+ - Q'\ :sub:`0[D19:D12]`
+
+ - Q'\ :sub:`0[D11:D4]`
+
+ - Q'\ :sub:`0[D3:D0]`
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
--
1.9.1
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