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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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          | 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.
+
+**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
-- 
1.9.1




[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux