[media] doc-rst: make CEC look more like other parts of the book

Better organize the contents of the CEC part, moving the
introduction to chapter 1, placing all ioctls at chapter 2
and numerating all chapters and items.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/cec/cec-api.rst

@@ -10,65 +10,15 @@ CEC API
 
 .. _cec-api:
 
-*********************************
-CEC: Consumer Electronics Control
-*********************************
-
-
-.. _cec-intro:
-
-Introduction
-============
-
-Note: this documents the proposed CEC API. This API is not yet finalized
-and is currently only available as a staging kernel module.
-
-HDMI connectors provide a single pin for use by the Consumer Electronics
-Control protocol. This protocol allows different devices connected by an
-HDMI cable to communicate. The protocol for CEC version 1.4 is defined
-in supplements 1 (CEC) and 2 (HEAC or HDMI Ethernet and Audio Return
-Channel) of the HDMI 1.4a (:ref:`hdmi`) specification and the
-extensions added to CEC version 2.0 are defined in chapter 11 of the
-HDMI 2.0 (:ref:`hdmi2`) specification.
-
-The bitrate is very slow (effectively no more than 36 bytes per second)
-and is based on the ancient AV.link protocol used in old SCART
-connectors. The protocol closely resembles a crazy Rube Goldberg
-contraption and is an unholy mix of low and high level messages. Some
-messages, especially those part of the HEAC protocol layered on top of
-CEC, need to be handled by the kernel, others can be handled either by
-the kernel or by userspace.
-
-In addition, CEC can be implemented in HDMI receivers, transmitters and
-in USB devices that have an HDMI input and an HDMI output and that
-control just the CEC pin.
-
-Drivers that support CEC will create a CEC device node (/dev/cecX) to
-give userspace access to the CEC adapter. The
-:ref:`CEC_ADAP_G_CAPS` ioctl will tell
-userspace what it is allowed to do.
-
-
-.. _cec-user-func:
-
-******************
-Function Reference
-******************
-
+This part describes the CEC: Consumer Electronics Control
 
 .. toctree::
     :maxdepth: 1
+    :numbered:
+    :caption: Table of Contents
 
-    cec-func-open
-    cec-func-close
-    cec-func-ioctl
-    cec-func-poll
-    cec-ioc-adap-g-caps
-    cec-ioc-adap-g-log-addrs
-    cec-ioc-adap-g-phys-addr
-    cec-ioc-dqevent
-    cec-ioc-g-mode
-    cec-ioc-receive
+    cec-intro
+    cec-funcs
     cec-header
 
 

Documentation/media/uapi/cec/cec-funcs.rst

+.. _cec-user-func:
+
+******************
+Function Reference
+******************
+
+
+.. toctree::
+    :maxdepth: 1
+    :numbered:
+
+    cec-func-open
+    cec-func-close
+    cec-func-ioctl
+    cec-func-poll
+    cec-ioc-adap-g-caps
+    cec-ioc-adap-g-log-addrs
+    cec-ioc-adap-g-phys-addr
+    cec-ioc-dqevent
+    cec-ioc-g-mode
+    cec-ioc-receive

Documentation/media/uapi/cec/cec-intro.rst

+.. _cec-intro:
+
+Introduction
+============
+
+Note: this documents the proposed CEC API. This API is not yet finalized
+and is currently only available as a staging kernel module.
+
+HDMI connectors provide a single pin for use by the Consumer Electronics
+Control protocol. This protocol allows different devices connected by an
+HDMI cable to communicate. The protocol for CEC version 1.4 is defined
+in supplements 1 (CEC) and 2 (HEAC or HDMI Ethernet and Audio Return
+Channel) of the HDMI 1.4a (:ref:`hdmi`) specification and the
+extensions added to CEC version 2.0 are defined in chapter 11 of the
+HDMI 2.0 (:ref:`hdmi2`) specification.
+
+The bitrate is very slow (effectively no more than 36 bytes per second)
+and is based on the ancient AV.link protocol used in old SCART
+connectors. The protocol closely resembles a crazy Rube Goldberg
+contraption and is an unholy mix of low and high level messages. Some
+messages, especially those part of the HEAC protocol layered on top of
+CEC, need to be handled by the kernel, others can be handled either by
+the kernel or by userspace.
+
+In addition, CEC can be implemented in HDMI receivers, transmitters and
+in USB devices that have an HDMI input and an HDMI output and that
+control just the CEC pin.
+
+Drivers that support CEC will create a CEC device node (/dev/cecX) to
+give userspace access to the CEC adapter. The
+:ref:`CEC_ADAP_G_CAPS` ioctl will tell userspace what it is allowed to do.