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Use cookies for thread identification instead of pointers directly which gives a buffer against wrongly identifying a thread when the slot is recycled (which has been nagging me for awhile). A slot gets 255 uses before it repeats. Everything gets incompatible so a full update is required.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19377 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2008-12-10 08:57:10 +00:00
parent 40ff47c7ee
commit 8cfbd3604f
32 changed files with 329 additions and 234 deletions
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10
firmware/backlight.c
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@ -130,7 +130,7 @@ static long backlight_stack[DEFAULT_STACK_SIZE/sizeof(long)];
static const char backlight_thread_name[] = "backlight";
static struct event_queue backlight_queue;
#ifdef BACKLIGHT_DRIVER_CLOSE
static struct thread_entry *backlight_thread_p = NULL;
static unsigned int backlight_thread_id = 0;
#endif
static int backlight_timer SHAREDBSS_ATTR;
@ -744,7 +744,7 @@ void backlight_init(void)
* call the appropriate backlight_set_*() functions, only changing light
* status if necessary. */
#ifdef BACKLIGHT_DRIVER_CLOSE
backlight_thread_p =
backlight_thread_id =
#endif
create_thread(backlight_thread, backlight_stack,
sizeof(backlight_stack), 0, backlight_thread_name
@ -756,13 +756,13 @@ void backlight_init(void)
#ifdef BACKLIGHT_DRIVER_CLOSE
void backlight_close(void)
{
struct thread_entry *thread = backlight_thread_p;
unsigned int thread = backlight_thread_id;
/* Wait for thread to exit */
if (thread == NULL)
if (thread == 0)
return;
backlight_thread_p = NULL;
backlight_thread_id = 0;
queue_post(&backlight_queue, BACKLIGHT_QUIT, 0);
thread_wait(thread);