int wait_for_ready( void )
{
int d = gpio_hrdy( );
int count = 0;
while ( d == 0 && count < WAIT_MAX)
{
d = gpio_hrdy( );
count++;
}
if (d == 0 || count >= WAIT_MAX)
{
DBG("not ready %d!\n", count);
}
return count;
}
int wait_for_ready( void )
{
int d = gpio_hrdy( );
int count = 0;
while ( d == 0 )
{
if (++count >= WAIT_MAX)
{
reset();
count = 0;
}
d = gpio_hrdy( );
}
return count;
}
/// This function may cause deadlock. Make sure you call this function
/// correctly. Otherwise use wait_for_ready instead. This function is introduced
/// to solve screen update problem. We may have a better way later.
int wait_until_ready( void )
{
// TODO, change the usleep to nanosleep later.
static const int MAX = 40;
int d = gpio_hrdy( );
int count = 0;
while ( d == 0 && count < MAX)
{
USLEEP(100 * 1000);
d = gpio_hrdy( );
count++;
}
if (d == 0)
{
DBG("Still not ready, should not happen");
}
return count;
}
