/*
* Returns 1 if SHPC finishes executing a command within 1 sec,
* otherwise returns 0.
*/
static inline int shpc_poll_ctrl_busy(struct controller *ctrl)
{
int i;
if (!is_ctrl_busy(ctrl))
return 1;
/* Check every 0.1 sec for a total of 1 sec */
for (i = 0; i < 10; i++) {
msleep(100);
if (!is_ctrl_busy(ctrl))
return 1;
}
return 0;
}
static inline int shpc_poll_ctrl_busy(struct controller *ctrl)
{
int i;
if (!is_ctrl_busy(ctrl))
return 1;
for (i = 0; i < 10; i++) {
msleep(100);
if (!is_ctrl_busy(ctrl))
return 1;
}
return 0;
}
static inline int shpc_wait_cmd(struct controller *ctrl)
{
int retval = 0;
unsigned long timeout = msecs_to_jiffies(1000);
int rc;
if (shpchp_poll_mode)
rc = shpc_poll_ctrl_busy(ctrl);
else
rc = wait_event_interruptible_timeout(ctrl->queue,
!is_ctrl_busy(ctrl), timeout);
if (!rc && is_ctrl_busy(ctrl)) {
retval = -EIO;
err("Command not completed in 1000 msec\n");
} else if (rc < 0) {
retval = -EINTR;
info("Command was interrupted by a signal\n");
}
return retval;
}
