[media] doc-rst: Fix conversion for dvb-core.rst
The conversion from DocBook required some fixes: - Now, the C files with the exported symbols also need to be added. So, all headers need to be included twice: one to get the structs/enums/.. and another one for the functions; - Notes should use the ReST tag, as kernel-doc doesn't recognizes it anymore; - Identation needs to be fixed, as ReST uses it to identify when a format "tag" ends. - Fix the cross-references at the media controller description. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Mauro Carvalho Chehab
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@ -11,6 +11,15 @@ Digital TV Common functions
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.. kernel-doc:: drivers/media/dvb-core/dvbdev.h
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.. kernel-doc:: drivers/media/dvb-core/dvb_math.h
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:export: drivers/media/dvb-core/dvb_math.c
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.. kernel-doc:: drivers/media/dvb-core/dvbdev.h
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:export: drivers/media/dvb-core/dvbdev.c
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Digital TV Frontend kABI
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------------------------
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@ -24,17 +33,20 @@ The header file for this API is named dvb_frontend.h and located in
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drivers/media/dvb-core.
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Before using the Digital TV frontend core, the bridge driver should attach
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the frontend demod, tuner and SEC devices and call dvb_register_frontend(),
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the frontend demod, tuner and SEC devices and call
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:cpp:func:`dvb_register_frontend()`,
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in order to register the new frontend at the subsystem. At device
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detach/removal, the bridge driver should call dvb_unregister_frontend() to
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remove the frontend from the core and then dvb_frontend_detach() to free the
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memory allocated by the frontend drivers.
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detach/removal, the bridge driver should call
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:cpp:func:`dvb_unregister_frontend()` to
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remove the frontend from the core and then :cpp:func:`dvb_frontend_detach()`
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to free the memory allocated by the frontend drivers.
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The drivers should also call dvb_frontend_suspend() as part of their
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handler for the &device_driver.suspend(), and dvb_frontend_resume() as
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part of their handler for &device_driver.resume().
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The drivers should also call :cpp:func:`dvb_frontend_suspend()` as part of
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their handler for the :c:type:`device_driver`.\ ``suspend()``, and
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:cpp:func:`dvb_frontend_resume()` as
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part of their handler for :c:type:`device_driver`.\ ``resume()``.
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few other optional functions are provided to handle some special cases.
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A few other optional functions are provided to handle some special cases.
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.. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h
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@ -70,7 +82,7 @@ static or module private and registered to the Demux core for external
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access. It is not necessary to implement every function in the struct
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&dmx_demux. For example, a demux interface might support Section filtering,
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but not PES filtering. The kABI client is expected to check the value of any
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function pointer before calling the function: the value of NULL means
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function pointer before calling the function: the value of ``NULL`` means
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that the function is not available.
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Whenever the functions of the demux API modify shared data, the
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@ -78,7 +90,7 @@ possibilities of lost update and race condition problems should be
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addressed, e.g. by protecting parts of code with mutexes.
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Note that functions called from a bottom half context must not sleep.
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Even a simple memory allocation without using %GFP_ATOMIC can result in a
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Even a simple memory allocation without using ``GFP_ATOMIC`` can result in a
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kernel thread being put to sleep if swapping is needed. For example, the
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Linux Kernel calls the functions of a network device interface from a
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bottom half context. Thus, if a demux kABI function is called from network
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@ -109,14 +121,16 @@ triggered by a hardware interrupt, it is recommended to use the Linux
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bottom half mechanism or start a tasklet instead of making the callback
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function call directly from a hardware interrupt.
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This mechanism is implemented by dmx_ts_cb() and dmx_section_cb()
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This mechanism is implemented by :cpp:func:`dmx_ts_cb()` and :cpp:func:`dmx_section_cb()`
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callbacks.
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.. kernel-doc:: drivers/media/dvb-core/demux.h
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Digital TV Conditional Access kABI
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----------------------------------
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.. kernel-doc:: drivers/media/dvb-core/dvb_ca_en50221.h
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.. kernel-doc:: drivers/media/dvb-core/dvb_ca_en50221.h
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:export: drivers/media/dvb-core/dvb_ca_en50221.c
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@ -379,10 +379,10 @@ enum dmx_demux_caps {
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* @open is called and decrement it when @close is called.
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* The @demux function parameter contains a pointer to the demux API and
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* instance data.
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* It returns
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* 0 on success;
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* -EUSERS, if maximum usage count was reached;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -EUSERS, if maximum usage count was reached;
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* -EINVAL, on bad parameter.
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*
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* @close: This function reserves the demux for use by the caller and, if
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* necessary, initializes the demux. When the demux is no longer needed,
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@ -392,10 +392,10 @@ enum dmx_demux_caps {
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* @open is called and decrement it when @close is called.
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* The @demux function parameter contains a pointer to the demux API and
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* instance data.
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* It returns
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* 0 on success;
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* -ENODEV, if demux was not in use (e. g. no users);
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -ENODEV, if demux was not in use (e. g. no users);
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* -EINVAL, on bad parameter.
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*
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* @write: This function provides the demux driver with a memory buffer
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* containing TS packets. Instead of receiving TS packets from the DVB
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@ -410,12 +410,12 @@ enum dmx_demux_caps {
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* The @buf function parameter contains a pointer to the TS data in
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* kernel-space memory.
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* The @count function parameter contains the length of the TS data.
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* It returns
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* 0 on success;
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* -ERESTARTSYS, if mutex lock was interrupted;
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* -EINTR, if a signal handling is pending;
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* -ENODEV, if demux was removed;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -ERESTARTSYS, if mutex lock was interrupted;
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* -EINTR, if a signal handling is pending;
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* -ENODEV, if demux was removed;
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* -EINVAL, on bad parameter.
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*
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* @allocate_ts_feed: Allocates a new TS feed, which is used to filter the TS
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* packets carrying a certain PID. The TS feed normally corresponds to a
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@ -426,11 +426,11 @@ enum dmx_demux_caps {
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* instance data.
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* The @callback function parameter contains a pointer to the callback
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* function for passing received TS packet.
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* It returns
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* 0 on success;
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* -ERESTARTSYS, if mutex lock was interrupted;
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* -EBUSY, if no more TS feeds is available;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -ERESTARTSYS, if mutex lock was interrupted;
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* -EBUSY, if no more TS feeds is available;
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* -EINVAL, on bad parameter.
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*
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* @release_ts_feed: Releases the resources allocated with @allocate_ts_feed.
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* Any filtering in progress on the TS feed should be stopped before
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@ -439,9 +439,9 @@ enum dmx_demux_caps {
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* instance data.
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* The @feed function parameter contains a pointer to the TS feed API and
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* instance data.
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* It returns
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* 0 on success;
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* -EINVAL on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL on bad parameter.
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*
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* @allocate_section_feed: Allocates a new section feed, i.e. a demux resource
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* for filtering and receiving sections. On platforms with hardware
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@ -457,10 +457,10 @@ enum dmx_demux_caps {
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* instance data.
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* The @callback function parameter contains a pointer to the callback
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* function for passing received TS packet.
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* It returns
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* 0 on success;
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* -EBUSY, if no more TS feeds is available;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -EBUSY, if no more TS feeds is available;
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* -EINVAL, on bad parameter.
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*
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* @release_section_feed: Releases the resources allocated with
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* @allocate_section_feed, including allocated filters. Any filtering in
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@ -470,9 +470,9 @@ enum dmx_demux_caps {
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* instance data.
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* The @feed function parameter contains a pointer to the TS feed API and
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* instance data.
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* It returns
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* 0 on success;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL, on bad parameter.
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*
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* @add_frontend: Registers a connectivity between a demux and a front-end,
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* i.e., indicates that the demux can be connected via a call to
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@ -486,9 +486,9 @@ enum dmx_demux_caps {
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* instance data.
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* The @frontend function parameter contains a pointer to the front-end
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* instance data.
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* It returns
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* 0 on success;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL, on bad parameter.
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*
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* @remove_frontend: Indicates that the given front-end, registered by a call
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* to @add_frontend, can no longer be connected as a TS source by this
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@ -502,10 +502,10 @@ enum dmx_demux_caps {
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* instance data.
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* The @frontend function parameter contains a pointer to the front-end
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* instance data.
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* It returns
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* 0 on success;
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* -ENODEV, if the front-end was not found,
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -ENODEV, if the front-end was not found,
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* -EINVAL, on bad parameter.
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*
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* @get_frontends: Provides the APIs of the front-ends that have been
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* registered for this demux. Any of the front-ends obtained with this
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@ -529,17 +529,17 @@ enum dmx_demux_caps {
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* instance data.
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* The @frontend function parameter contains a pointer to the front-end
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* instance data.
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* It returns
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* 0 on success;
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* -EINVAL, on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL, on bad parameter.
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*
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* @disconnect_frontend: Disconnects the demux and a front-end previously
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* connected by a @connect_frontend call.
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* The @demux function parameter contains a pointer to the demux API and
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* instance data.
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* It returns
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* 0 on success;
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* -EINVAL on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL on bad parameter.
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*
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* @get_pes_pids: Get the PIDs for DMX_PES_AUDIO0, DMX_PES_VIDEO0,
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* DMX_PES_TELETEXT0, DMX_PES_SUBTITLE0 and DMX_PES_PCR0.
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@ -547,9 +547,9 @@ enum dmx_demux_caps {
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* instance data.
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* The @pids function parameter contains an array with five u16 elements
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* where the PIDs will be stored.
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* It returns
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* 0 on success;
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* -EINVAL on bad parameter.
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* It returns:
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* 0 on success;
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* -EINVAL on bad parameter.
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*/
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struct dmx_demux {
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