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464254e5db
linux/drivers/media/rc
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Heiner Kallweit 464254e5db [media] media: rc: raw: improve FIFO handling 
The FIFO is used for ir_raw_event records, however for some historic
reason the FIFO is used on a per byte basis. IMHO this adds unneeded
complexity. Therefore set up the FIFO for ir_raw_event records.

This also allows to define the FIFO statically as part of
ir_raw_event_ctrl instead of having to allocate the FIFO dynamically.
In addition:

- When writing into the FIFO and it's full return ENOSPC instead of
  ENOMEM thus making it easier to tell between "FIFO full" and
  "Dynamic memory allocation failed" when the error is propagated to
  a higher level.
  Also add an error message.

- When reading from the FIFO check whether it's empty.
  This is not strictly needed here but kfifo_out is annotated
  "must check" anyway.

Successfully tested it with the nuvoton-cir driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 12:38:09 -02:00
..
img-ir [media] rc: img-ir: fix error in parameters passed to irq_free() 2015-04-08 12:52:50 -03:00
keymaps [media] lmedm04: NEC scancode cleanup 2015-07-06 08:26:15 -03:00
ati_remote.c [media] ati_remote: Use non-alomic __set_bit 2014-07-25 23:52:15 -03:00
ene_ir.c PNP: media/rc: Use module_pnp_driver to register driver 2015-03-18 22:39:17 +01:00
ene_ir.h [media] ene_ir: don't use pr_debug after all 2013-07-29 11:49:45 -03:00
fintek-cir.c [media] media/fintek: drop pci_ids dependency 2015-05-12 13:44:41 -03:00
fintek-cir.h [media] rc: Fir warnings on m68k arch 2013-11-08 09:45:37 -02:00
gpio-ir-recv.c [media] rc: gpio-ir-recv: add timeout on idle 2015-11-19 07:46:33 -02:00
igorplugusb.c [media] rc: port IgorPlug-USB to rc-core 2014-11-03 12:18:25 -02:00
iguanair.c [media] rc-core: remove protocol arrays 2014-07-25 19:10:43 -03:00
imon.c [media] imon: fix other RC type protocol support 2014-11-03 10:56:51 -02:00
ir-hix5hd2.c [media] ir-hix5hd2: drop the use of IRQF_NO_SUSPEND 2015-10-22 15:48:24 -02:00
ir-jvc-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-lirc-codec.c [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf 2015-12-21 14:59:36 -02:00
ir-mce_kbd-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-nec-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-rc5-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-rc6-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-rx51.c [media] include/media: move platform_data to linux/platform_data/media 2015-11-17 06:58:42 -02:00
ir-sanyo-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-sharp-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-sony-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ir-xmp-decoder.c [media] media: rc: move check whether a protocol is enabled to the core 2015-11-19 11:39:17 -02:00
ite-cir.c PNP: media/rc: Use module_pnp_driver to register driver 2015-03-18 22:39:17 +01:00
ite-cir.h
Kconfig [media] media: rc: ir-sharp-decoder: add support for Denon variant of the protocol 2015-11-19 09:32:35 -02:00
lirc_dev.c [media] lirc_dev: avoid potential null-dereference 2015-02-03 17:33:42 -02:00
Makefile [media] media: rc: add driver for Amlogic Meson IR remote receiver 2014-11-26 13:29:01 -02:00
mceusb.c [media] mceusb: fix usbdev leak 2014-09-23 16:13:38 -03:00
meson-ir.c [media] media: rc: add driver for Amlogic Meson IR remote receiver 2014-11-26 13:29:01 -02:00
nuvoton-cir.c [media] media: rc: nuvoton: mark wakeup-related resources 2016-01-25 12:32:42 -02:00
nuvoton-cir.h [media] media: rc: nuvoton-cir: replace nvt_pr with dev_ functions 2015-11-19 09:37:34 -02:00
rc-core-priv.h [media] media: rc: raw: improve FIFO handling 2016-01-25 12:38:09 -02:00
rc-ir-raw.c [media] media: rc: raw: improve FIFO handling 2016-01-25 12:38:09 -02:00
rc-loopback.c Revert "[media] rc: rc-loopback: Add loopback of filter scancodes" 2015-08-19 07:02:53 -03:00
rc-main.c [media] media: rc: remove unneeded code 2015-12-03 15:01:11 -02:00
redrat3.c [media] ir: Fix IR_MAX_DURATION enforcement 2015-06-05 11:26:42 -03:00
st_rc.c [media] media: st-rc: remove misuse of IRQF_NO_SUSPEND flag 2015-11-19 06:46:05 -02:00
streamzap.c [media] rc-core: Remove 'struct timeval' usage 2015-11-19 09:31:45 -02:00
sunxi-cir.c [media] rc: sunxi-cir: Initialize the spinlock properly 2015-12-23 15:51:40 -02:00
ttusbir.c [media] rc-core: remove protocol arrays 2014-07-25 19:10:43 -03:00
winbond-cir.c [media] rc-core: remove protocol arrays 2014-07-25 19:10:43 -03:00