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2020-04-14media: docs: move uAPI book to userspace-api/mediaMauro Carvalho Chehab27-3041/+0
Since 2017, there is an space reserved for userspace API, created by changeset 1d596dee3862 ("docs: Create a user-space API guide"). As the media subsystem was one of the first subsystems to use Sphinx, until this patch, we were keeping things on a separate place. Let's just use the new location, as having all uAPI altogether will likely make things easier for developers. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-08-04media: rc: describe rc protocols and their scancodesSean Young5-7/+468
This lists the rc protocols the kernel knows about and how they are converted to and from scancodes. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-08-04media: lirc: document BPF IR decodingSean Young1-9/+38
This is just a start. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-27media: doc-rst: Fix typosBastien Nocera1-5/+5
Not sure how codespell thinks "sroweam" is a real word. Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-27media: rc: Prefer KEY_NUMERIC_* for number buttons on remotesBastien Nocera1-10/+10
Prefer KEY_NUMERIC_* for number buttons on remotes. Now all the remotes use KEY_NUMERIC_[0-9] for the number buttons rather than keys that could be affected by modifiers (Caps-Lock, or Num-Lock) or regional keymaps. Created using: sed -i 's/KEY_\([0-9]\) /KEY_NUMERIC_\1 /' *.c sed -i 's/KEY_\([0-9]\)}/KEY_NUMERIC_\1}/' *.c sed -i 's/``KEY_\([0-9]\)/``KEY_NUMERIC_\1/' Documentation/media/uapi/rc/rc-tables.rst Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-19Merge branch 'for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - several new key mappings for HID - a host of new ACPI IDs used to identify Elan touchpads in Lenovo laptops * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ HID: input: add mapping for "Toggle Display" key HID: input: add mapping for "Full Screen" key HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys HID: input: add mapping for Expose/Overview key HID: input: fix mapping of aspect ratio key [media] doc-rst: switch to new names for Full Screen/Aspect keys Input: document meanings of KEY_SCREEN and KEY_ZOOM Input: elan_i2c - add hardware ID for multiple Lenovo laptops
2019-03-27[media] doc-rst: switch to new names for Full Screen/Aspect keysDmitry Torokhov1-2/+2
We defined better names for keys to activate full screen mode or change aspect ratio (while keeping the existing keycodes to avoid breaking userspace), so let's use them in the document. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-03-01media: Documentation: fix several typosMauro Carvalho Chehab1-2/+2
Use codespell to fix lots of typos over frontends. Manually verified to avoid false-positives. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: add SPDX header to media uAPI filesMauro Carvalho Chehab26-0/+234
All those files are under GFDL 1.1 or later, with no invariant sections. Tag them as such. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: remove text encoding from rst filesMauro Carvalho Chehab26-52/+0
This is not needed there. Also, the same UTF-8 encoding should be used on all documents. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14media: lirc-func.rst: new ioctl LIRC_GET_REC_TIMEOUT is not in a separate fileSean Young1-1/+0
This fixes the warning: Documentation/media/uapi/rc/lirc-func.rst:9: WARNING: toctree contains reference to nonexisting document 'media/uapi/rc/lirc-get-rec-timeout' The ioctl is documented in lirc-set-rec-timeout. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-10Merge tag 'v4.17-rc4' into patchworkMauro Carvalho Chehab1-1/+1
Linux 4.17-rc4 * tag 'v4.17-rc4': (920 commits) Linux 4.17-rc4 KVM: x86: remove APIC Timer periodic/oneshot spikes genksyms: fix typo in parse.tab.{c,h} generation rules kbuild: replace hardcoded bison in cmd_bison_h with $(YACC) gcc-plugins: fix build condition of SANCOV plugin MAINTAINERS: Update Kbuild entry with a few paths Revert "usb: host: ehci: Use dma_pool_zalloc()" platform/x86: Kconfig: Fix dell-laptop dependency chain. platform/x86: asus-wireless: Fix NULL pointer dereference arm64: vgic-v2: Fix proxying of cpuif access KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance KVM: arm64: Fix order of vcpu_write_sys_reg() arguments MAINTAINERS & files: Canonize the e-mails I use at files media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR tools: power/acpi, revert to LD = gcc bdi: Fix oops in wb_workfn() RDMA/cma: Do not query GID during QP state transition to RTR IB/mlx4: Fix integer overflow when calculating optimal MTT size IB/hfi1: Fix memory leak in exception path in get_irq_affinity() IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure ...
2018-05-04MAINTAINERS & files: Canonize the e-mails I use at filesMauro Carvalho Chehab1-1/+1
From now on, I'll start using my @kernel.org as my development e-mail. As such, let's remove the entries that point to the old mchehab@s-opensource.com at MAINTAINERS file. For the files written with a copyright with mchehab@s-opensource, let's keep Samsung on their names, using mchehab+samsung@kernel.org, in order to keep pointing to my employer, with sponsors the work. For the files written before I join Samsung (on July, 4 2013), let's just use mchehab@kernel.org. For bug reports, we can simply point to just kernel.org, as this will reach my mchehab+samsung inbox anyway. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Brian Warner <brian.warner@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-04-20media: rc: add ioctl to get the current timeoutSean Young2-5/+10
Since the kernel now modifies the timeout, make it possible to retrieve the current value. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-20media: rc: report receiver and transmitter type on device registerSean Young1-1/+1
On the raspberry pi, we might have two lirc devices; one for sending and one for receiving. This change makes it much more apparent which one is which. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-27media: rc: no need to announce major numberSean Young1-1/+0
Since commit a60d64b15c20 ("media: lirc: lirc interface should not be a raw decoder"), the message in the documentation is incorrect as the module name is rc_core, not lirc_dev. Since the message is not useful, just make the message debug and remove it from the documentation. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23media: lirc: lirc mode ioctls deal with current modeSean Young2-18/+62
The ioctl change the current mode or return the current mode; they do not tell you which modes are possible (use the lirc features ioctl for that). Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23media: lirc: lirc daemon fails to detect raw IR deviceSean Young1-13/+11
Since commit 9b6192589be7 ("media: lirc: implement scancode sending"), and commit de142c324106 ("media: lirc: implement reading scancode") the lirc features ioctl for raw IR devices advertises two modes for sending and receiving. The lirc daemon now fails to detect a raw IR device, both for transmit and receive. To fix this, do not advertise the scancode mode in the lirc features for raw IR devices (however do keep it for scancode devices). The mode can still be used via the LIRC_SET_{REC,SEND}_MODE ioctl. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18media: lirc: when transmitting scancodes, block until transmit is doneSean Young1-2/+2
The semantics for lirc IR transmit with raw IR is that the write call should block until the IR is transmitted. Some drivers have no idea when this actually is (e.g. mceusb), so there is a wait. This is useful for userspace, as it might want to send a IR button press, a gap of a predefined number of milliseconds, and then send a repeat message. It turns out that for transmitting scancodes this feature is even more useful, as user space has no idea how long the IR is. So, maintain the existing semantics for IR scancode transmit. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14media: RC docs: add enum rc_proto description at the docsMauro Carvalho Chehab3-9/+16
This is part of the uAPI. Add it to the documentation again, and fix cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Sean Young <sean@mess.org>
2017-12-14media: lirc: document LIRC_MODE_SCANCODESean Young6-15/+92
Lirc supports a new mode which requires documentation. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14media: lirc: remove name from lirc_devSean Young1-1/+1
This is a duplicate of rcdev->driver_name. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14media: lirc: remove LIRCCODE and LIRC_GET_LENGTHSean Young6-70/+4
LIRCCODE is a lirc mode where a driver produces driver-dependent codes for receive and transmit. No driver uses this any more. The LIRC_GET_LENGTH ioctl was used for this mode only. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: docs: don't show ToC for each part on PDF outputMauro Carvalho Chehab1-1/+3
The "Table of Contents" of a PDF file is generated only once, at the beginning fo the output. It doesn't produce it on each part. So, don't output this text on each part of the document. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05media: rc-sysfs-nodes.rst: better use literalsMauro Carvalho Chehab1-5/+5
A literal box provides a better visual when pdf and html output is generated for things like the output of a sysfs devnode. It alsod matches other conventions used within the media book. So, use it. While here, use literals for protocol names. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-24[media] lirc: document lirc modes betterSean Young9-35/+82
LIRC_MODE_MODE2 and LIRC_MODE_LIRCCODE were not covered at all. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] rc: change wakeup_protocols to list all protocol variantsSean Young1-6/+7
For IR wakeup, a driver has to program the hardware to wakeup at a specific IR sequence, so it makes no sense to allow multiple wakeup protocols to be selected. In the same manner the sysfs interface only allows one scancode to be provided. In addition, we need to know the specific variant of the protocol. In short, these changes are made to the wakeup_protocols sysfs entry: - list all the protocol variants rather than the protocol groups, e.g. "nec nec-x nec-32" rather than just "nec". - only allow one protocol variant to be selected rather than multiple - wakeup_filter can only be set once a protocol has been selected in wakeup_protocols. This is an API change, however the only user of this API is the img-ir, but the wakeup code was never merged to mainline, so it was never used. Signed-off-by: Sean Young <sean@mess.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Sifan Naeem <sifan.naeem@imgtec.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-09[media] docs-rst: fix two wrong :name: tagsMauro Carvalho Chehab1-1/+1
There's a typo there, causing 4 warnings: Documentation/media/uapi/rc/lirc-read.rst:26: WARNING: c:type reference target not found: name Documentation/media/uapi/rc/lirc-read.rst:26: WARNING: c:type reference target not found: lirc Documentation/media/uapi/v4l/func-poll.rst:25: WARNING: c:type reference target not found: name Documentation/media/uapi/v4l/func-poll.rst:25: WARNING: c:type reference target not found: v4l2 Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-23[media] docs-rst: Convert LIRC uAPI to use C function referencesMauro Carvalho Chehab17-64/+48
Name all ioctl references and make them match the ioctls that are documented. That will improve the cross-reference index, as it will have all ioctls and syscalls there. While here, improve the documentation to make them to look more like the rest of the document. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-23[media] docs-next: stop abusing on the cpp domainMauro Carvalho Chehab17-17/+17
Now that we have an override for the c domain that will do the right thing for the Kernel, stop abusing on the cpp domain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] docs-rst: add tabularcolumns to all tablesMauro Carvalho Chehab1-0/+2
LaTeX doesn't handle too well auto-width on tables, and ReST markup requires an special tag to give it the needed hints. As we're using A4 paper, we have 17cm of useful spaces. As most media tables have widths, let's use it to generate the needed via the following perl script: my ($line_size, $table_header, $has_cols) = (17.5, 0, 0); my $out; my $header = ""; my @widths = (); sub round { $_[0] > 0 ? int($_[0] + .5) : -int(-$_[0] + .5) } while (<>) { if (!$table_header) { $has_cols = 1 if (m/..\s+tabularcolumns::/); if (m/..\s+flat-table::/) { $table_header = 1; $header = $_; next; } $out .= $_; next; } $header .= $_; @widths = split(/ /, $1) if (m/:widths:\s+(.*)/); if (m/^\n$/) { if (!$has_cols && @widths) { my ($tot, $t, $i) = (0, 0, 0); foreach my $v(@widths) { $tot += $v; }; $out .= ".. tabularcolumns:: |"; for ($i = 0; $i < scalar @widths - 1; $i++) { my $v = $widths[$i]; my $w = round(10 * ($v * $line_size) / $tot) / 10; $out .= sprintf "p{%.1fcm}|", $w; $t += $w; } my $w = $line_size - $t; $out .= sprintf "p{%.1fcm}|\n\n", $w; } $out .= $header; $table_header = 0; $has_cols = 0; $header = ""; @widths = (); } } print $out; Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22[media] docs-rst: better use the .. note:: tagMauro Carvalho Chehab1-1/+3
Change multi-line note tags to be more symetric, e. g. not starting the text together witht the tag. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: better organize the media booksMauro Carvalho Chehab1-10/+7
The uAPI book has 5 parts, but they lost numeration after conversion to rst. Manually number those parts, and make the main index with 1 depth, to only show the parts and the annexes. At each part, use :maxwidth: 5, in order to show a more complete index. While here, fix the cross-references between different books. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13Revert "[media] docs-rst: escape [] characters"Mauro Carvalho Chehab1-21/+21
This patch touches on places where it shouldn't: image files and code examples. Also, it doesn't fix all array occurrences. So, let's revert it. This reverts commit ffbab694ede33c294e5864a5e0bf4d1474446a71.
2016-07-12[media] docs-rst: escape [] charactersMauro Carvalho Chehab1-21/+21
Those characters are used for citations. Better to escape, to avoid them to be misinterpreted. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: reorganize LIRC ReST filesMauro Carvalho Chehab6-12/+24
Reorganize the LIRC rst files, using "-" instead of "_" on their names, and creating a separate chapter for syscalls. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC set mode ioctlsMauro Carvalho Chehab5-98/+50
Add LIRC_SET_[REC|SEND]_MODE ioctls to the corresponding GET functions, and put all LIRC modes altogether. As now everything is already documented on its own ioctl pages, get rid of lirc_ioctl.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_SET_WIDEBAND_RECEIVERMauro Carvalho Chehab3-19/+57
Put documentation for this ioctl on a separate page and improve it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: add documentation for LIRC_SET_MEASURE_CARRIER_MODEMauro Carvalho Chehab3-9/+49
Place documentation for this ioctl on its own page. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_SET_REC_TIMEOUT_REPORTSMauro Carvalho Chehab3-8/+50
Add a separate page for this ioctl and improve its documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_SET_REC_TIMEOUTMauro Carvalho Chehab3-11/+53
Add a separate page for this ioctl and adds the cross-references. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_SET_TRANSMITTER_MASKMauro Carvalho Chehab3-10/+54
Add proper documentation for this ioctl, providing some additional information about its usage. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC set carrier ioctlsMauro Carvalho Chehab5-18/+143
Put each ioctl on its own page and improve documentation, adding cross-references for LIRC_SET_REC_CARRIER_RANGE and LIRC_SET_REC_CARRIER, with can be used together to set a carrier frequency range. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_GET_LENGTH ioctlMauro Carvalho Chehab3-11/+46
Put documentation for this ioctl on its own page. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_GET_*_TIMEOUT ioctlsMauro Carvalho Chehab3-13/+56
Improve the documentation for those ioctls, adding them to a separate file, in order to look like the rest of the book, and to later allow to generate a man page for those ioctls. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_SET_SEND_DUTY_CYCLEMauro Carvalho Chehab3-9/+50
Add a separate page for this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document LIRC_GET_REC_RESOLUTIONMauro Carvalho Chehab3-10/+50
Improve the documentation for this ioctl, adding it to a separate file, in order to look like the rest of the book, and to later allow to generate a man page for this ioctl. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: document ioctl LIRC_GET_REC_MODEMauro Carvalho Chehab3-9/+60
Move the documentation of this ioctl from lirc_ioctl to its own file, and add a short description about the pulse mode used by IR RX. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-12[media] doc-rst: fix some lirc cross-referencesMauro Carvalho Chehab4-7/+6
Some references were broken. It was also mentioning LIRC_MODE_RAW, with it is not implemented on current LIRC drivers. So, fix the references. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-11[media] doc-rst: document ioctl LIRC_GET_SEND_MODEMauro Carvalho Chehab3-9/+49
Move the documentation of this ioctl from lirc_ioctl to its own file, and add a short description about the pulse mode used by IR TX. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>