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2015-10-10[media] DocBook: document the other structs/enums of demux.hMauro Carvalho Chehab1-9/+88
Document the following data types: struct dmx_ts_feed struct dmx_section_filter struct dmx_section_feed enum dmx_frontend_source struct dmx_frontend Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-07[media] dvb: Remove unused frontend sources at demux.h and sync docMauro Carvalho Chehab1-7/+0
The DVB core has a provision for other frontend sources, but no drivers use it. The kdapi.xml contains provision for some other frontend source types, but it is not in sync with the code. So, remove the unused types and sync both files. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb: get rid of enum dmx_successMauro Carvalho Chehab4-32/+11
This enum is not actually used anymore. The only value used from the enum is DMX_OK, passed as a parameter on two callbacks. Yet, this value is not used anywhere. So, just remove it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] DocBook: finish documenting struct dmx_demuxMauro Carvalho Chehab1-1/+15
There are two callbacks still not documented: .//drivers/media/dvb-core/demux.h:422: warning: No description found for parameter 'get_pes_pids' .//drivers/media/dvb-core/demux.h:422: warning: No description found for parameter 'get_stc' The purpose of first one is clear. The second one is used only on the obsolete av7110 driver, and its purpose is not clear, as it just returns a 64-bit word from the firmware to userspace. Let's document get_pes_pids and mark get_stc as private, adding a comment to not use it, while this is not documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb: don't keep support for undocumented featuresMauro Carvalho Chehab2-2/+8
There are two DVB demux callbacks and ioctls that aren't documented and aren't used at all by the DVB core or by any DVB driver upstream. Let's comment out the code for those two ioctls and remove on some future version. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] DocBook: update documented fields at struct dmx_demuxMauro Carvalho Chehab1-29/+23
There are a few inconsistencies between the old documentation that got imported into the header and the current status. Update them, and use the proper doc-nano nomenclature for struct artuments "@", instead of foo(). Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] DocBook: Move struct dmx_demux kABI doc to demux.hMauro Carvalho Chehab1-3/+190
The DocBook/media/dvb/kdapi.xml contains the description of the kABI for DVB. The problem is that, by being maintained on a separate file and not being updated for years, it got outdated. So, for example, some callback parameters were changed, but the DocBook were still using the old stuff. As a first step to fix it, let's move the documentation of struct dmx_demux into demux.h and fix the parameters used there. For now, don't document any other field nor touch the descriptions that got moved, letting this job to other patches. That makes easier to review the patch. PS.: Please notice that an additional patch will be needed in order to fix the return values (some uses non-existent return codes) and to the functions and callbacks mentioned at the descriptions. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb_ca_en50221.h: Make checkpatch.pl happyMauro Carvalho Chehab1-33/+29
There are several CodingStyle violations at the DVB code. While we won't be fixing them as a hole, let's fix at least the headers, as we're touching on them already in order to properly document them. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] DocBook: document struct dvb_ca_en50221Mauro Carvalho Chehab1-17/+20
This struct is already documented at the header file, but it is not using Kernel doc-nano format. Convert to it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-03[media] Add Terratec H7 Revision 4 to DVBSky driverErik Andresen1-0/+1
Adds Terratec H7 Rev. 4 with USB id 0ccd:10a5 to DVBSky driver. Signed-off-by: Erik Andresen <erik@vontaene.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01[media] dvbdev: Remove two cut-and-paste errorsMauro Carvalho Chehab1-4/+0
Those two came from dvb_register_adapter cut-and-paste: .//drivers/media/dvb-core/dvbdev.h:199: warning: Excess function parameter 'device' description in 'dvb_register_device' .//drivers/media/dvb-core/dvbdev.h:199: warning: Excess function parameter 'adapter_nums' description in 'dvb_register_device' Remove them. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-22[media] dvbdev: document most of the functions/data structsMauro Carvalho Chehab1-17/+99
Document the most relevant functions and data structs for developers that are working with the DVB subsystem. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb_frontend.h: document the struct dvb_frontendMauro Carvalho Chehab1-0/+19
That struct is used on every DVB Front End driver, as it contains what's needed to register/use a frontend at the Kernel. Document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb-frontend.h: document struct dtv_frontend_propertiesMauro Carvalho Chehab1-14/+91
Most of the parameters here are already well defined at the userspace documentation. Yet, it is good to add some documentation, for the developers to be sure that they are the same as the ones at userspace API. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb-frontend.h: document struct dvb_frontend_opsMauro Carvalho Chehab1-1/+85
This is one of the most important functions of the DVB frontend, containing the logic needed to set the parameters at the demux and to send commands via SEC. Document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb: Use DVBFE_ALGO_HW where applicableMauro Carvalho Chehab1-1/+0
The dvb_frontend.c core defines a FE_ALGO_HW symbol that it is never used. Also, both cx24123 returns 1 to get_algo() callback instead of using DVBFE_ALGO_HW. Probably, those are some left overs from some code cleanup. Let's stop returning magic numbers and use the proper macro value. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb_frontend.h: document struct analog_demod_opsMauro Carvalho Chehab1-0/+27
Add documentation for struct analog_demod_info and struct analog_demod_ops. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb_frontend.h: Document struct dvb_tuner_opsMauro Carvalho Chehab1-1/+47
The struct dvb_tuner_ops contains lots of callbacks used by tuners. Document them. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] Docbook: Document struct analog_parametersMauro Carvalho Chehab1-4/+18
That struct inside dvb-frontend.h stores some parameters from V4L2 API (videodev2.h), in order to be used by the hybrid analog/digital TV tuners. Document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb_frontend.h: get rid of dvbfe_modcodMauro Carvalho Chehab1-36/+0
This enum is not used anymore, as drivers use the modulation definitions from the public API. It is probably a left over from some DVB core cleanup. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] add documentation for struct dvb_tuner_infoMauro Carvalho Chehab1-0/+14
Despite being used everywhere at DVB frontends, the struct dvb_tuner_info were never documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] dvb_frontend: document dvb_frontend_tune_settingsMauro Carvalho Chehab1-0/+9
Add Documentation for dvb_frontend_tune_settings struct. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] DocBook: add dvb_ringbuffer.h to documentationMauro Carvalho Chehab1-60/+75
There are already some comments at dvb_ringbuffer.h that are ready for DocBook, although not properly formatted. Convert them, fix some issues and add this file to the device-drivers DocBook. While here, put multi-line comments on the right format. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] DocBook: add dvb_math.h to documentationMauro Carvalho Chehab1-6/+9
There are already some comments at dvb_math.h that are ready for DocBook, although not properly formatted. Convert them, fix some issues and add this file to the device-drivers DocBook. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] DocBook: add dvb_frontend.h to documentationMauro Carvalho Chehab1-35/+33
There are already some comments at dvb_frontend.h that are ready for DocBook, although not properly formatted. Convert them, and add this file to the device-drivers DocBook. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] DocBook: add dvb_ca_en50221.h to documentationMauro Carvalho Chehab2-100/+101
There are already some tags at dvb_ca_en50221.h, but using a different format. Convert them, fix a few entries and add to the device-drivers DocBook. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-08-22[media] DocBook/device-drivers: Add drivers/media core stuffMauro Carvalho Chehab1-4/+6
There are lots of docbook marks at the media subsystem, but those aren't used. Add the core headers/code in order to start generating docs. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-07-22[media] dvb_core: Replace memset with eth_zero_addrVaishali Thakkar1-1/+1
Use eth_zero_addr to assign the zero address to the given address array instead of memset when second argument is address of zero. The Coccinelle semantic patch that makes this change is as follows: // <smpl> @eth_zero_addr@ expression e; @@ -memset(e,0x00,ETH_ALEN); +eth_zero_addr(e); // </smpl> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10[media] dvb-core: prevent some corruption the legacy ioctlDan Carpenter1-1/+7
Quite a few of the ->diseqc_send_master_cmd() implementations don't check cmd->msg_len so it can lead to memory corruption. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-09[media] dvb-frontend: Replace timeval with ktime_tTina Ruchandani2-32/+12
struct timeval uses a 32-bit seconds representation which will overflow in the year 2038 and beyond. This patch replaces the usage of struct timeval with ktime_t which is a 64-bit timestamp and is year 2038 safe. This patch is part of a larger attempt to remove all instances of 32-bit timekeeping variables (timeval, timespec, time_t) which are not year 2038 safe, from the kernel. [mchehab@osg.samsung.com: add a missing parenthesis, breaking compilation] Suggested-by: Arnd Bergmann <arndb@arndb.de> Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-09[media] dvb: Get rid of typedev usage for enumsMauro Carvalho Chehab2-31/+38
The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-05-20[media] dvb-core: fix 32-bit overflow during bandwidth calculationAntti Palosaari1-1/+1
Frontend bandwidth calculation overflows on very high DVB-S/S2 symbol rates. Use mult_frac() macro in order to keep calculation correct. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-21Merge branch 'drm-next-merged' of ↵media/v4.1-2Mauro Carvalho Chehab1-1/+0
git://people.freedesktop.org/~airlied/linux into v4l_for_linus * 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits) media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format hexdump: avoid warning in test function fs: take i_mutex during prepare_binprm for set[ug]id executables smp: Fix error case handling in smp_call_function_*() iommu-common: Fix PARISC compile-time warnings sparc: Make LDC use common iommu poll management functions sparc: Make sparc64 use scalable lib/iommu-common.c functions Break up monolithic iommu table/lock into finer graularity pools and lock sparc: Revert generic IOMMU allocator. tools/power turbostat: correct dumped pkg-cstate-limit value tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL tools/power turbostat: correct DRAM RAPL units on recent Xeon processors tools/power turbostat: Initial Skylake support tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile tools/power turbostat: modprobe msr, if needed tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2 tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names Bluetooth: hidp: Fix regression with older userspace and flags validation config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected perf/x86/intel/pt: Fix and clean up error handling in pt_event_add() ... That solves several merge conflicts: Documentation/DocBook/media/v4l/subdev-formats.xml Documentation/devicetree/bindings/vendor-prefixes.txt drivers/staging/media/mn88473/mn88473.c include/linux/kconfig.h include/uapi/linux/media-bus-format.h The ones at subdev-formats.xml and media-bus-format.h are not trivial. That's why we opted to merge from DRM.
2015-04-08[media] WinFast DTV2000 DS PlusChristian Dale1-0/+1
Add Leadtek WinFast DTV2000DS Plus device based on Realtek RTL2832U. I have not tested the remote, but it is the Y04G0051 model. Signed-off-by: Christian Dale <kernel@techmunk.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-08[media] rtl28xxu: add support for Turbo-X DTT2000Dimitris Lampridis1-0/+1
ID 1b80:d3a4 Afatech Simply added the PID (0xd3a4) of this DVB-T USB device to the list of rtl2832u-supported devices. VID (0x1b80) is same as KWORLD2. Tested and verified to work in amd64 with kernels 3.13.0 and 3.16.0. Signed-off-by: Dimitris Lampridis <dlampridis@logikonlabs.com> Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-08[media] DVB: Less function calls in dvb_ca_en50221_init() after error detectionMarkus Elfring1-11/+12
The functions "dvb_unregister_device" and "kfree" could still be called by the dvb_ca_en50221_init() function in the case that a previous resource allocation failed. * Corresponding details could be improved by adjustments for jump targets. * Let us delete also an unnecessary check for the variable "ca" there. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-08[media] DVB: Delete an unnecessary check before the function call ↵Markus Elfring1-2/+1
"dvb_unregister_device" The dvb_unregister_device() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-02[media] dw2102: TechnoTrend TT-connect S2-4600 DVB-S/S2 tunerOlli Salonen1-0/+1
TechnoTrend TT-connect S2-4600 is a USB2.0 DVB-S/S2 tuner using the popular Montage M88DS3103/M88TS2022 demod/tuner. The demodulator needs a firmware. Antti posted a firmware when releasing support for PCTV 461e, available here: http://palosaari.fi/linux/v4l-dvb/firmware/M88DS3103/ Signed-off-by: Olli Salonen <olli.salonen@iki.fi> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-02net: Kill dev_rebuild_headerEric W. Biederman1-1/+0
Now that there are no more users kill dev_rebuild_header and all of it's implementations. This is long overdue. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-02[media] use a function for DVB media controller registerMauro Carvalho Chehab1-0/+7
This is really a simple function, but using it avoids to have if's inside the drivers. Also, the kABI becomes a little more clearer. This shouldn't generate any overhead, and the type check will happen when compiling with MC DVB enabled. So, let's do it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-02[media] dvbdev: use adapter arg for dvb_create_media_graph()Mauro Carvalho Chehab2-4/+10
Instead of using media_dev argument for dvb_create_media_graph(), use the adapter. That allows to create a stub for this function, if compiled without DVB support, avoiding to add extra if's at the drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26[media] dvb core: rename the media controller entitiesMauro Carvalho Chehab3-4/+4
Prefix all DVB media controller entities with "dvb-" and use dash instead of underline at the names. Requested-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26[media] dvb-frontend: remove a warningMauro Carvalho Chehab1-0/+2
if CONFIG_MEDIA_CONTROLLER_DVB is not selected, it is now producing this warning: drivers/media/dvb-core/dvb_frontend.c: In function ‘dvb_frontend_thread’: drivers/media/dvb-core/dvb_frontend.c:695:6: warning: unused variable ‘ret’ [-Wunused-variable] int ret; ^ Reported-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-23[media] dvb core: only start media entity if not NULLMauro Carvalho Chehab1-2/+3
The logic there tries to start the media entity even if it doesn't exist, causing this bug: [ 314.356162] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 [ 314.356202] IP: [<ffffffffa02ef74c>] media_entity_pipeline_start+0x1c/0x390 [media] Reported-by: Gert-Jan van der Stroom <gjstroom@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvb_frontend: start media pipeline while thread is runningMauro Carvalho Chehab1-2/+24
While the DVB thread is running, the media pipeline should be streaming. This should prevent any attempt of using the analog TV while digital TV is working, and vice-versa. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvb-frontend: enable tuner link when the FE thread startsMauro Carvalho Chehab1-0/+94
If the dvb frontend thread starts, the tuner should be switched to the frontend. Add a code that ensures that this will happen, using the media controller. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvbdev: enable DVB-specific linksMauro Carvalho Chehab1-3/+3
For now, let's keep the DVB-specific media controller links enabled by default. On most devices, this is fixed anyway, so no big issue. Ok, the demux actually have dynamic links based on the filters, but we don't represent them yet, as the media controller currently lacks the capability of dynamically create/delete entities. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvbdev: add a function to create DVB media graphMauro Carvalho Chehab2-0/+46
We need to create a DVB graph, linking the several DVB devnodes. Add such function. Please notice that this helper function doesn't take into account devices with multiple DVB adapters and frontends. For devices with multiple adapters, they should either create two different media controller instances or to improve this function to take the adapter ID into account. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvbdev: represent frontend with two padsMauro Carvalho Chehab1-5/+7
While on some devices the tuner is bound inside the frontend, other devices use a separate subdevice for it. So, in order to be more generic, better to map it with two pads. That will allows to use the media controller to lock the tuner between the DVB and the V4L2 sub-drivers, on hybrid devices. While here, change the logic to use pad 0 as sink for devices with both sink and source pads. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dvbdev: add pad for the DVB devnodesMauro Carvalho Chehab2-4/+38
We want to represent the links between the several DVB devnodes, so let's create PADs for them. The DVB net devnode is a different matter, as it is not related to the media stream, but with network. So, at least for now, let's not add any pad for it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

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