diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-03-24 20:47:53 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-18 00:52:59 -0300 |
commit | 995187bed30c0545e8da88372e9807da0a85911e (patch) | |
tree | e3e28eff10f8f01f1bfd7ff865a29076bf6700dc /drivers/media/IR/ir-nec-decoder.c | |
parent | 9f1547829a6f39fe6b2da22653dff40502f3d568 (diff) |
V4L/DVB: ir-core: dynamically load the compiled IR protocols
Instead of hardcoding the protocols into ir-core, add a register interface
for the IR protocol decoders, and convert ir-nec-decoder into a client of
ir-core.
With this approach, it is possible to dynamically load the needed IR protocols,
and to add a RAW IR interface module, registered as one IR raw protocol decoder.
This patch opens a way to register a lirc_dev interface to work as an userspace
IR protocol decoder.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/IR/ir-nec-decoder.c')
-rw-r--r-- | drivers/media/IR/ir-nec-decoder.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/drivers/media/IR/ir-nec-decoder.c b/drivers/media/IR/ir-nec-decoder.c index 104482a6991e..c9a986dd57fd 100644 --- a/drivers/media/IR/ir-nec-decoder.c +++ b/drivers/media/IR/ir-nec-decoder.c @@ -1,4 +1,4 @@ -/* ir-raw-event.c - handle IR Pulse/Space event +/* ir-nec-decoder.c - handle NEC IR Pulse/Space protocol * * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com> * @@ -147,7 +147,7 @@ static int __ir_nec_decode(struct input_dev *input_dev, if (++count == 32) break; } - *pos++; + (*pos)++; /* * Fixme: may need to accept Extended NEC protocol? @@ -181,9 +181,9 @@ err: * This function returns the number of decoded pulses or -EINVAL if no * pulse got decoded */ -int ir_nec_decode(struct input_dev *input_dev, - struct ir_raw_event *evs, - int len) +static int ir_nec_decode(struct input_dev *input_dev, + struct ir_raw_event *evs, + int len) { int pos = 0; int rc = 0; @@ -198,4 +198,27 @@ int ir_nec_decode(struct input_dev *input_dev, return rc; } -EXPORT_SYMBOL_GPL(ir_nec_decode); +static struct ir_raw_handler nec_handler = { + .decode = ir_nec_decode, +}; + +static int __init ir_nec_decode_init(void) +{ + ir_raw_handler_register(&nec_handler); + + printk(KERN_INFO "IR NEC protocol handler initialized\n"); + return 0; +} + +static void __exit ir_nec_decode_exit(void) +{ + ir_raw_handler_unregister(&nec_handler); +} + +module_init(ir_nec_decode_init); +module_exit(ir_nec_decode_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); +MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)"); +MODULE_DESCRIPTION("NEC IR protocol decoder"); |