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Fix the STM32 PWM driver pulse count logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4298 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-01-11 18:44:12 +00:00
parent 67631ddea7
commit 397edddc5b
2 changed files with 60 additions and 13 deletions
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drivers/pwm.c
+4 -1
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@@ -322,7 +322,7 @@ static int pwm_start(FAR struct pwm_upperhalf_s *upper, unsigned int oflags)
* We do these things before starting the PWM to avoid race conditions.
*/
upper->waiting = (upper->info.count > 0) && ((oflags & O_NONBLOCK) != 0);
upper->waiting = (upper->info.count > 0) && ((oflags & O_NONBLOCK) == 0);
upper->started = true;
/* Invoke the bottom half method to start the pulse train */
@@ -354,6 +354,7 @@ static int pwm_start(FAR struct pwm_upperhalf_s *upper, unsigned int oflags)
{
/* Looks like we won't be waiting after all */
pwmvdbg("start failed: %d\n", ret);
upper->started = false;
upper->waiting = false;
}
@@ -649,6 +650,8 @@ void pwm_expired(FAR void *handle)
{
FAR struct pwm_upperhalf_s *upper = (FAR struct pwm_upperhalf_s *)handle;
pwmllvdbg("started: %d waiting: %d\n", upper->started, upper->waiting);
/* Make sure that the PWM is started */
if (upper->started)