Motorola PPC/PMC-8260/DS1, Справочное руководство, Страница: 99 / 150

Firmware Code Examples
PPC/PMC-8260/DS1 4 - 35
Waiting for Command Completion
/* Wait for completion of current command
* Returns 0 on error, 1 on success
*/
int pmc8260_wait (
char *memBase /* PCI window address */
)
{
int seconds = 0;
printf (“waiting “);
while (1)
{
if (!strncmp (PBSYNC, “.OK.”, 4))
{
printf (“OK\n”);
return 1;
}
if (!strncmp (PBSYNC, “FAIL”, 4))
{
printf (“FAILURE\n”);
return 0;
}
if (strncmp (PBSYNC, “BUSY”, 4))
{
if (seconds > 2)
{
printf (“command acknowledge timeout\n”);
return 0;
}
}
printf (“.”);
sleep(1);
if (+ > 40)
{
printf (“Still BUSY after 40 seconds ...\n”);
return 0;
}
}
}