void usbevt_resume () {
# if (MPIPE_USB_REMWAKE)
mpipe.state = MPIPE_Idle;
mpipeevt_rxinit(0);
if (platform_ext.usb_wakeup != False) {
sys_resume();
}
# endif
}
void usbevt_vbuson () {
/// The standard code turns-on the USB subsystem and generates a rising edge
/// on DP (D+) via reset-connect, which causes the host to enumerate this
/// device as a 12 Mbps USB Full Speed Device.
if (usb_enable() == kUSB_succeed){
usb_reset();
usb_connect();
}
if (platform_ext.usb_wakeup != False) {
sys_resume();
}
}
/*===========================================================================*
* try_resume_proc *
*===========================================================================*/
static void try_resume_proc(struct mproc *rmp)
{
/* Resume the given process if possible. */
int r;
assert(rmp->mp_flags & PROC_STOPPED);
/* If the process is blocked on a VFS call, do not resume it now. Most likely * it will be unpausing, in which case the process must remain stopped.
* Otherwise, it will still be resumed once the VFS call returns. If the
* process has died, do not resume it either.
*/
if (rmp->mp_flags & (VFS_CALL | EXITING))
return;
if ((r = sys_resume(rmp->mp_endpoint)) != OK)
panic("sys_resume failed: %d", r);
/* Also unset the unpaused flag. We can safely assume that a stopped process
* need only be unpaused once, but once it is resumed, all bets are off.
*/
rmp->mp_flags &= ~(PROC_STOPPED | UNPAUSED);
}
