Em 28-07-2010 13:38, Maxim Levitsky escreveu:
> On Wed, 2010-07-28 at 13:01 -0300, Mauro Carvalho Chehab wrote:
>> Em 28-07-2010 12:14, Maxim Levitsky escreveu:
>>> * lirc: Don't propagate reset event to userspace
>>> * lirc: Remove strange logic from lirc that would make first sample always be pulse
>>> * Make TO_US macro actualy print what it should.
>>>
>>> Signed-off-by: Maxim Levitsky <maximlevitsky@xxxxxxxxx>
>>> ---
>>> drivers/media/IR/ir-core-priv.h | 3 +--
>>> drivers/media/IR/ir-lirc-codec.c | 14 ++++++++------
>>> drivers/media/IR/ir-raw-event.c | 3 +++
>>> 3 files changed, 12 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/drivers/media/IR/ir-core-priv.h b/drivers/media/IR/ir-core-priv.h
>>> index babd520..8ce80e4 100644
>>> --- a/drivers/media/IR/ir-core-priv.h
>>> +++ b/drivers/media/IR/ir-core-priv.h
>>> @@ -76,7 +76,6 @@ struct ir_raw_event_ctrl {
>>> struct lirc_codec {
>>> struct ir_input_dev *ir_dev;
>>> struct lirc_driver *drv;
>>> - int lircdata;
>>> } lirc;
>>> };
>>>
>>> @@ -104,7 +103,7 @@ static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration)
>>> ev->duration -= duration;
>>> }
>>>
>>> -#define TO_US(duration) (((duration) + 500) / 1000)
>>> +#define TO_US(duration) ((duration) / 1000)
>>
>> It is better to keep rounding the duration to its closest value.
>
> But that breaks if duration is already at maximum. At that case,
> you see usual signed int wrap from positive to negative, and abnormally
> large space...
>
> I didn't notice though that you do rounding here.
> I replace that with something better.
There's a function for rounding at kernel. The better is to use it, as it should already
solve the signal wrap.
Cheers,
Mauro
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