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path: root/drivers/media/IR/ir-keytable.c
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* V4L/DVB: media: ir-keytable: null dereference in debug codeDan Carpenter2010-08-081-1/+2
| | | | | | | | "ir_dev->props" can be NULL. We only use raw mode if "ir_dev->props" is non-NULL and "ir_dev->props->driver_type == RC_DRIVER_IR_RAW". Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: IR: report unknown scancodes the in-kernel decoders foundMaxim Levitsky2010-08-081-0/+8
| | | | | | | This way it is possible to use evtest to create keymap for unknown remote. Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: IR: add helper function for hardware with small o/b bufferMaxim Levitsky2010-08-081-1/+1
| | | | | | | | | | | | | | | | | Some ir input devices have small buffer, and interrupt the host each time it is full (or half full) Add a helper that automaticly handles timeouts, and also automaticly merges samples of same time (space-space) Such samples might be placed by hardware because size of sample in the buffer is small (a byte for example). Also remove constness from ir_dev_props, because it now contains timeout settings that driver might want to change Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: sms: Convert IR support to use the Remote Controller coreMauro Carvalho Chehab2010-08-021-2/+3
| | | | | | | | | | | | | | | | | | | Rewrites the siano IR implementation. The previous implementation were non-standard. As such, it has issues if more than one device registers IR, as there used to have some static constants used during protocol decoding phase. Also, it used to implement its on RAW decoder, and only for RC5. The new code uses RC core subsystem for handling IR. This brings several new features to the driver, including: - Allow to dynamically replace the IR keycodes; - Supports all existing raw decoders (JVC, NEC, RC-5, RC-6, SONY); - Supports lirc dev; - Doesn't have race conditions when more than one sms IR is registered; - The code size for the IR implementation is very small; - it exports the IR features via /sys/class/rc. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: Bug fix: make IR work again for dm1105Igor M. Liplianin2010-06-011-7/+10
| | | | | | | It makes IR to work again for dm1105 and, possibly, others. Signed-off-by: Igor M. Liplianin <liplianin@me.by> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: fix some confusing commentsDavid Härdeman2010-05-191-1/+1
| | | | | | | Fix some confusing comments in drivers/media/IR/* Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: fix table resize during keymap initMauro Carvalho Chehab2010-05-191-4/+6
| | | | | | | | drivers/media/IR/ir-keytable.c would alloc a suitably sized keymap table only to have it resized as it is populated with the initial keymap. Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* ir-core: Fix the delete logicMauro Carvalho Chehab2010-05-191-1/+1
| | | | | | | | | | | | | | | | | | | | Instead of removing an entry, the logic were doing both a deletion and a key addition, as shown by the log: [11517.323314] ir_getkeycode: unknown key for scancode 0x0050 [11517.326529] ir_do_setkeycode: #80: Deleting scan 0x0050 [11517.326529] ir_do_setkeycode: #80: New scan 0x0050 with key 0x0000 [11517.340598] ir_getkeycode: unknown key for scancode 0x0051 [11517.343811] ir_do_setkeycode: #81: Deleting scan 0x0051 [11517.343811] ir_do_setkeycode: #81: New scan 0x0051 with key 0x0000 [11517.357889] ir_getkeycode: unknown key for scancode 0x0052 [11517.361104] ir_do_setkeycode: #82: Deleting scan 0x0052 [11517.361104] ir_do_setkeycode: #82: New scan 0x0052 with key 0x0000 [11517.375453] ir_getkeycode: unknown key for scancode 0x0053 [11517.378474] ir_do_setkeycode: #83: Deleting scan 0x0053 [11517.378474] ir_do_setkeycode: #83: New scan 0x0053 with key 0x0000 Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: move subsystem internal calls to ir-core-priv.hMauro Carvalho Chehab2010-05-191-1/+1
| | | | | | | | | | | | | | | | | | | | ir-core.h has the kABI to be used by the bridge drivers, when needing to register IR protocols and pass IR events. However, the same file also contains IR subsystem internal calls, meant to be used inside ir-core and between ir-core and the raw decoders. Better to move those functions to an internal header, for some reasons: 1) Header will be a little more cleaner; 2) It avoids the need of recompile everything (bridge/hardware drivers, etc), just because a new decoder were added, or some other internal change were needed; 3) Better organize the ir-core API, splitting the functions that are internal to IR core and the ancillary drivers (decoders, lirc_dev) from the features that should be exported to IR subsystem clients. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: Distinguish sysfs attributes for in-hardware and raw decodersMauro Carvalho Chehab2010-05-191-3/+14
| | | | | | | | | | | | | | Some devices have in-hardware Remote Controller decoder, while others need a software decoder to get the IR code. As each software decoder can be enabled/disabled individually, allowing multiple protocol decoding capability. On the other hand, hardware decoders have a limited protocol support, often being able of decoding just one protocol each time. So, each type needs a different set of capabilities to control the supported protocol(s). Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: Add support for badly-implemented hardware decodersMauro Carvalho Chehab2010-05-191-6/+19
| | | | | | | | | | | | | A few hardware Remote Controller decoders, even using a standard protocol, aren't able to provide the entire scancode. Due to that, the capability of using other IR's are limited on those hardware. Adds a way to indicate to ir-core what are the bits that the hardware provides, from a scancode, allowing the addition of a complete IR table to the kernel and allowing a limited support for changing the Remote Controller on those devices. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: improve keyup/keydown logicDavid Härdeman2010-05-191-24/+101
| | | | | | | | | | | | | | | | | Rewrites the keyup/keydown logic in drivers/media/IR/ir-keytable.c. All knowledge of keystates etc is now internal to ir-keytable.c and not scattered around ir-raw-event.c and ir-nec-decoder.c (where it doesn't belong). In addition, I've changed the API slightly so that ir_input_dev is passed as the first argument rather than input_dev. If we're ever going to support multiple keytables we need to move towards making ir_input_dev the main interface from a driver POV and obscure away the input_dev as an implementational detail in ir-core. Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: re-add some debug functions for keytable changesMauro Carvalho Chehab2010-05-191-2/+17
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: drivers/media/IR - improve keytable codeDavid Härdeman2010-05-191-330/+188
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch rewrites much of the keytable code in drivers/media/IR/ir-keytable.c. The scancodes are now inserted into the array in sorted order which allows for a binary search on lookup. The code has also been shrunk by about 150 lines. In addition it fixes the following bugs: Any use of ir_seek_table() was racy. ir_dev->driver_name is leaked between ir_input_register() and ir_input_unregister(). ir_setkeycode() unconditionally does clear_bit() on dev->keybit when removing a mapping, but there might be another mapping with a different scancode and the same keycode. This version has been updated to incorporate patch feedback from Mauro Carvalho Chehab. [mchehab@redhat.com: Fix a conflict with RC keytable breakup patches and input changes] Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir: prepare IR code for a parameter change at register functionMauro Carvalho Chehab2010-05-191-3/+3
| | | | | | | A latter patch will reuse the ir_input_register with a different meaning. Before it, change all occurrences to a temporary name. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: Add callbacks for input/evdev open/close on IR coreMauro Carvalho Chehab2010-05-181-0/+17
| | | | | | | | | | Especially when IR needs to do polling, it generates lots of wakeups per second. This makes no sense, if the input event device is closed. Adds a callback handler to the IR hardware driver, to allow registering an open/close ops. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa7134: don't wait too much to generate an IR event on raw_decodeMauro Carvalho Chehab2010-05-181-0/+1
| | | | | | | | | | | | | | | | | At raw_decode mode, the key is processed after the end of a timer. The previous code resets the timer every time something is received at the IR port. While this works fine with IR's that don't implement repeat, like Avermedia RM-JX IR, it keeps waiting until keydown, on IR's that implement NEC repeat command, like the Terratec yellow. The solution is to change the behaviour to do the timeout after the first received data. The timeout is currently set to 15 ms, as it works fine with NEC protcocol. It may need some adjustments to support other protocols and to better handle spurious detections that may happen with some IR sensors. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: add two functions to report keyup/keydown eventsMauro Carvalho Chehab2010-05-181-1/+56
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: export driver name used by IR via ueventMauro Carvalho Chehab2010-05-181-1/+6
| | | | | | | | Now, both driver and keytable names are exported to userspace. This will help userspace to decide when a table need to be replaced by another one. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir-core: Export IR name via ueventMauro Carvalho Chehab2010-05-181-0/+1
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ir: use a real device instead of a virtual classMauro Carvalho Chehab2010-05-181-9/+1
| | | | | | | | | | | | | | | | | | | Change the ir-sysfs approach to create irrcv0 as a device, instead of using class_dev. Also, change the way input is registered, in order to make its parent to be the irrcv device. Due to this change, now the event device is created under /sys/class/ir/irrcv class: /sys/class/irrcv/irrcv0/ |-- current_protocol |-- device -> ../../../1-3 |-- input9 | |-- capabilities | | |-- abs ... Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Input: scancode in get/set_keycodes should be unsignedDmitry Torokhov2010-03-081-2/+2
| | | | | | | | | | | | The HID layer has some scan codes of the form 0xffbc0000 for logitech devices which do not work if scancode is typed as signed int, so we need to switch to unsigned it instead. While at it keycode being signed does not make much sense either. Acked-by: Márton Németh <nm127@freemail.hu> Acked-by: Matthew Garrett <mjg@redhat.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* V4L/DVB: ir: fix memory leakAlexander Beregalov2010-02-261-1/+3
| | | | | | | | Free ir_dev before exit. Found by cppcheck. Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13856): ir-keytable: simplify and avoid a warningMauro Carvalho Chehab2010-02-261-8/+4
| | | | | | | /home/v4l/buildtest/v4l-dvb-master/v4l/ir-keytable.c: In function 'ir_setkeycode': /home/v4l/buildtest/v4l-dvb-master/v4l/ir-keytable.c:190: warning: 'newkeymap' may be used uninitialized in this function Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13833): ir-core: some functions can be staticMauro Carvalho Chehab2010-02-261-4/+2
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13638): ir-core: documment missed functionsMauro Carvalho Chehab2010-02-261-3/+10
| | | | | | While here, change ir_core_dev_number to be static Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13634): ir-core: allow passing IR device parameters to ir-coreMauro Carvalho Chehab2010-02-261-2/+7
| | | | | | | Adds an structure to ir_input_register to contain IR device characteristics, like supported protocols and a callback to handle protocol event changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13633): ir-core: create a new class for remote controllersMauro Carvalho Chehab2010-02-261-3/+14
| | | | | | | | | | | | | Add sysfs skeleton to export remote controller information via /sys/class/irrcv. For now, the code doesn't do much. It just exports an attribute that is meant to report and control the IR protocol used by the keytable. However, the callbacks for this new attribute weren't set yet. Also, it lacks symlinks to the used event interface. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13858): ir-keytable: use the right headerMauro Carvalho Chehab2010-01-171-1/+1
| | | | | | We don't need linux/usb/input.h but, instead, linux/input.h Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13617): ir: move input_register_device() to happen inside ↵Mauro Carvalho Chehab2009-12-161-6/+14
| | | | | | | | | | | | | | | ir_input_register() We'll need to register a sysfs class for the IR devices. As such, the better is to have the input_register_device()/input_unregister_device() inside the ir register/unregister functions. Also, solves a naming problem with V4L ir_input_init() function, that were, in fact, registering a device. While here, do a few cleanups at budget-ci IR logic. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13616): IR: rename ir_input_free as ir_input_unregisterMauro Carvalho Chehab2009-12-161-2/+2
| | | | | | | Now, ir_input_free does more than just freeing the keytab. Better to rename it as ir_input_unregister. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13615): ir-core: create ir_input_registerMauro Carvalho Chehab2009-12-161-12/+39
| | | | | | | Move non-V4L specific stuff from ir-functions ir_input_init() into a new function to register ir devices: ir_input_register(). Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13613): IR: create ir-core moduleMauro Carvalho Chehab2009-12-161-2/+19
| | | | | | | | Split the ir-common into two separate modules: - ir-core: it is the IR-independent functions; - ir-common: has the common part used by V4L drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13612): IR: Move common IR code to drivers/media/IRMauro Carvalho Chehab2009-12-161-0/+433
This is the first step of creating a common code for IR that can be used by other input devices. For now, keep IR dir at drivers/media, to easy the movement of the IR files, but later patches may move it to drivers/IR or drivers/input/IR. No functional changes is done on this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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