This patch adds documentation for the three new SDR formats
V4L2_SDR_FMT_PCU16BE
V4L2_SDR_FMT_PCU18BE
V4L2_SDR_FMT_PCU20BE
Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx>
---
.../media/uapi/v4l/pixfmt-sdr-pcu16be.rst | 55 ++++++++++++++++++++++
.../media/uapi/v4l/pixfmt-sdr-pcu18be.rst | 55 ++++++++++++++++++++++
.../media/uapi/v4l/pixfmt-sdr-pcu20be.rst | 54 +++++++++++++++++++++
Documentation/media/uapi/v4l/sdr-formats.rst | 3 ++
4 files changed, 167 insertions(+)
create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst
create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst
create mode 100644 Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst
new file mode 100644
index 0000000..2de1b1a
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst
@@ -0,0 +1,55 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-PCU16BE:
+
+******************************
+V4L2_SDR_FMT_PCU16BE ('PC16')
+******************************
+
+Planar 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-pcu18be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst
new file mode 100644
index 0000000..da8b26b
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst
@@ -0,0 +1,55 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-PCU18BE:
+
+******************************
+V4L2_SDR_FMT_PCU18BE ('PC18')
+******************************
+
+Planar 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-pcu20be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst
new file mode 100644
index 0000000..5499eed
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst
@@ -0,0 +1,54 @@
+.. -*- coding: utf-8; mode: rst -*-
+.. _V4L2-SDR-FMT-PCU20BE:
+
+******************************
+V4L2_SDR_FMT_PCU20BE ('PC20')
+******************************
+
+Planar 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..2037f5b 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-pcu16be
+ pixfmt-sdr-pcu18be
+ pixfmt-sdr-pcu20be
--
1.9.1
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