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2017-09-05media: ca.h: document ca_msg and the corresponding ioctlsMauro Carvalho Chehab
Usually, CA messages are sent/received via reading/writing at the CA device node. However, two drivers (dst_ca and firedtv-ci) also implement it via ioctls. Apparently, on both cases, the net result is the same. Anyway, let's document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca docs: document CA_SET_DESCR ioctl and structsMauro Carvalho Chehab
The av7110 driver uses CA_SET_DESCR to store the descrambler control words at the CA descrambler slots. Document it. Thanks-to: Honza Petrouš <jpetrous@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: net.h: add kernel-doc and use it at Documentation/Mauro Carvalho Chehab
As we did with frontend.h, ca.h and dmx.h, move the struct definition to net.h. That should help to keep it updated, as more stuff gets added there. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: frontend.h: Avoid the term DVB when doesn't refer to a delivery systemMauro Carvalho Chehab
The DVB term can either refer to the subsystem or to a delivery system. Avoid it in the first case at the kernel-doc markups. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: intro.rst: don't assume audio and video codecs to be MPEG2Mauro Carvalho Chehab
Originally, when DVB was introduced, all codecs would be part of MPEG2 standard. That's not true anymore, as there are a large number of codec standards used on digital TV nowadays. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvbstb.svg: use dots for the optional parts of the hardwareMauro Carvalho Chehab
The hardware description mentions that some parts are optional. Make it clearer at the drawing. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx-get-pes-pids.rst: document the ioctlMauro Carvalho Chehab
This ioctl is supported by the DVB core, but was never documented. Add a documentation for it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb uAPI docs: minor editorial changesMauro Carvalho Chehab
Do minor editorial changes to improve documentation readability: - mark literals as such; - add table markups to hint sizes; - define what PES means; - instead of hardcoding devnode numbers to zero (like adapter0/) use a question mark, to indicate that multiple devnodes may exist; - add cross-references where useful. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvbapi.rst: add an entry to DVB revision historyMauro Carvalho Chehab
There are several missing items at the API history. Yet, as we're doing a significant change there, add a new entry. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb-frontend-parameters.rst: fix the name of a structMauro Carvalho Chehab
The struct that contains an union of DVB parameters is called dvb_frontend_parameters (and not FrontendParameters). Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx-fread.rst: specify how DMX_CHECK_CRC worksMauro Carvalho Chehab
In the past, the documentation used to say that, if a CRC error was found, a "-ECRC" error would be returned. That's not true: the DVB core will just silently ignore such errors. So, add an explicit note about that. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb uAPI docs: Prefer use "Digital TV instead of "DVB"Mauro Carvalho Chehab
The usage of the term "DVB" at the dvb API docs is confusing, as, right now, it can refer to either the European digital TV standard or to the subsystem. So, prefer calling it as "Digital TV" on most places, to avoid ambiguity. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca-fopen.rst: Fixes the device node name for CAMauro Carvalho Chehab
The device node name for CA is wrong since ever. I suspect that the name there was before DVBv3 (with was the first API introduced at the Kernel). Anyway, use the right name there. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb uAPI docs: adjust return value ioctl descriptionsMauro Carvalho Chehab
There are several issues on the return value for ioctls: - Text is confusing; - Some error codes don't exist; - The non-generic error codes should come before the text that points to the generic error codes; - Tables don't contain column size hints; - Some references are not marked as such. Correct them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: gen-errors.rst: document ENXIO error codeMauro Carvalho Chehab
This error can be produced at least at the DVB subsystem. As it is generic enough, document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: gen-errors.rst: remove row number commentsMauro Carvalho Chehab
Those are introduced by the conversion scripts and don't really help. Get rid of them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb uapi docs: better organize header filesMauro Carvalho Chehab
Instead of having one chapter per file, place all of them at the same chapter. That better organize the chapters at the uAPI documentation. As a side effect, now all uAPI headers are at the same page, at the html output, with makes easier to use it as a reference index for the spec. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dst_ca: remove CA_SET_DESCR boilerplateMauro Carvalho Chehab
This ioctl is not implemented at dst_ca driver. There's just a boilerplate code there. Remove it, as it is unlikely that anyone would implement it those days. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb rst: identify the documentation gap at the APIMauro Carvalho Chehab
Now that DVB spec is almost in sync, document what's missing. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb CA docs: place undocumented data together with ioctlsMauro Carvalho Chehab
Right now, the same undocumented structs are on two places: at ca_data_types.rst and together with their ioctls. Move them to just one place and use the standard way to represent them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca-get-descr-info.rst: document this ioctlMauro Carvalho Chehab
Instead of a generic boilerplate, fill it with relevant information about this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca-get-slot-info.rst: document this ioctlMauro Carvalho Chehab
Instead of a generic boilerplate, fill it with relevant information about this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca-get-cap.rst: document this ioctlMauro Carvalho Chehab
Instead of a generic boilerplate, fill it with relevant information about this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca-reset.rst: add some description to this ioctlMauro Carvalho Chehab
While we don't have any documentation for it, based on what's there at Kaffeine and VDR, it seems that this command should be issued before start using CA. So, document it as such. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dst_ca: return a proper error code from CA errorsMauro Carvalho Chehab
Right now, on several places, the driver is returning a "-1" error to userspace, instead of a proper error code. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca.h: document most CA data typesMauro Carvalho Chehab
For most of the stuff there, documenting is easy, as the header file contains information. Yet, I was unable to document two data structs: ca_msg and ca_descr As those two structs are used by a few drivers, keep them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca.h: get rid of CA_SET_PIDMauro Carvalho Chehab
This ioctl seems to be some attempt to support a feature at the bt8xx dst_ca driver. Yet, as said there, it "needs more work". Right now, the code there is just a boilerplate. At the end of the day, no driver uses this ioctl, nor it is documented anywhere (except for "needs more work"). So, get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: net.rst: Fix the level of a section of the net chapterMauro Carvalho Chehab
Due to a mistake, the DVB net chapter was actually broken into two different chapters. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: add kernel-doc markups and use it at Documentation/Mauro Carvalho Chehab
The demux documentation is pretty poor nowadays: most of the structs and enums aren't documented at all. Add proper kernel-doc markups for them and use it. Now, the demux API data structures are fully documented :-) Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: get rid of GET_DMX_EVENTMauro Carvalho Chehab
This seems to be a pure fictional API :-) It only exists at the DVB book, with no code implemeting it. So, just get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: get rid of DMX_SET_SOURCEMauro Carvalho Chehab
No driver uses this ioctl, nor it is documented anywhere. So, get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: get rid of DMX_GET_CAPSMauro Carvalho Chehab
There's no driver currently using it; it is also not documented about what it would be supposed to do. So, get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: get rid of unused DMX_KERNEL_CLIENTMauro Carvalho Chehab
There's a flag defined for Digital TV demux that is not used anywhere, called DMX_KERNEL_CLIENT. Get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: fe_property_parameters.rst: better document bandwidthMauro Carvalho Chehab
Use a table to document the supported bandwidths. That makes it clearer to readers. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: fe_property_parameters.rst: better define properties usageMauro Carvalho Chehab
Several frontend properties are specific to a subset of the delivery systems. Make it clearer when describing each property. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb frontend docs: use kernel-doc documentationMauro Carvalho Chehab
Now that frontend.h contains most documentation for the frontend, remove the duplicated information from Documentation/ and use the kernel-doc auto-generated one instead. That should simplify maintainership of DVB frontend uAPI, as most of the documentation will stick with the header file. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/frontend.h: document the uAPI fileMauro Carvalho Chehab
Most of the stuff at the Digital TV frontend header file are documented only at the Documentation. However, a few kernel-doc markups are there, several of them with parsing issues. Add the missing documentation, copying definitions from the Documentation when it applies, fixing some bugs. Please notice that DVBv3 stuff that were deprecated weren't commented by purpose. Instead, they were clearly tagged as such. This patch prepares to move part of the documentation from Documentation/ to kernel-doc comments. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/frontend.h: move out a private internal structureMauro Carvalho Chehab
struct dtv_cmds_h is just an ancillary struct used by the dvb_frontend.c to internally store frontend commands. It doesn't belong to the userspace header, nor it is used anywhere, except inside the DVB core. So, remove it from the header. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/intro: adjust the notices about optional hardwareMauro Carvalho Chehab
Both CA and decoders are optional. Also, the presence or absence has nothing to do on being a PCI card or not. Nowadays, most hardware leaves the decoders to either the GPU or to some ISP inside the SoC, instead of implementing it inside the Digital TV part of the device. So, change the wording to reflect the hardware changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/intro: update the history part of the documentMauro Carvalho Chehab
Convergence doesn't exist anymore. The community itself maintains the spec. Update accordingly. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/intro: update references for TV standardsMauro Carvalho Chehab
The references there are only for DVB. Add missing references for ATSC and ISDB standards. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dvb/intro: use the term Digital TV to refer to the systemMauro Carvalho Chehab
On several places at the introduction, a digital TV board and its kernel support is called as DVB. The reason is simple: by the time the document was written, there were no other digital TV standards :-) Modernize the specs by referring to them as Digital TV. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: dmx.h: split typedefs from structsMauro Carvalho Chehab
Using typedefs inside the Kernel is against CodingStyle, and there's no good usage here. Just like we did at frontend.h, at commit 0df289a209e0 ("[media] dvb: Get rid of typedev usage for enums"), let's keep those typedefs only to provide userspace backward compatibility. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: ca.h: split typedefs from structsMauro Carvalho Chehab
Using typedefs inside the Kernel is against CodingStyle, and there's no good usage here. Just like we did at frontend.h, at commit 0df289a209e0 ("[media] dvb: Get rid of typedev usage for enums"), let's keep those typedefs only to provide userspace backward compatibility. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05Merge branch 'for-4.14/wacom' into for-linusJiri Kosina
- name generation improvement for Wacom devices from Jason Gerecke - Kconfig dependency fix for Wacom driver from Arnd Bergmann
2017-09-05Merge branch 'for-4.14/upstream' into for-linusJiri Kosina
- usb_device_id and snd_rawmidi_ops constifications from Julia Lawall and Arvind Yadav
2017-09-05Merge branch 'for-4.14/multitouch' into for-linusJiri Kosina
- support for media keys on Asus T304UA from João Paulo Rechi Vita - support for Microsoft Win8 Wireless Radio Controls extensions from João Paulo Rechi Vita Conflicts: drivers/hid/hid-ids.h Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-09-05Merge branch 'for-4.14/ish' into for-linusJiri Kosina
- bring consistency into logical minimum numbering in sensor-hub driver, from Srinivas Pandruvada
2017-09-05Merge branch 'for-4.14/driver-lock-removal' into for-linusJiri Kosina
- Arnd pointed out that driver_lock semaphore is superfluous, as driver core already provides all the necessary concurency protection. Removal patch from Binoy Jayan
2017-09-05Merge branch 'for-4.14/constify-attribute_group' into for-linusJiri Kosina
- struct attribute_group constification from Arvind Yadav