void remote488_device::ieee488_ifc(int state)
{
update_signal(SIGNAL_IFC_BIT , state);
if (!state) {
LOG("IFC\n");
bus_reset();
}
}
// done on each push of 'reset' key (or reset command)
void sim_reset()
{
hold_off = FALSE;
boot_time = rcl_key = num_meas = meas_time = shifted_key;
self_test = TRUE;
need_recall_file = recall_file;
recall_active = FALSE;
kfp = 0;
bus_reset();
front_panel_reset();
sim_proc_reset();
hpib_reset();
}
void remote488_device::device_reset()
{
m_no_propagation = true;
m_in_signals = 0xff;
m_bus->atn_w(this , 1);
m_bus->eoi_w(this , 1);
m_bus->ifc_w(this , 1);
m_bus->ren_w(this , 1);
m_bus->srq_w(this , 1);
m_out_signals = 0xff;
m_no_propagation = false;
// Fake disconnection
m_connected = true;
set_connection(false);
bus_reset();
}
/* USB_EORSM_DNRSM, USB_EORST_RST, USB_LPMSUSP_DDISC, USB_LPM_DCONN,
USB_MSOF, USB_RAMACER, USB_RXSTP_TXSTP_0, USB_RXSTP_TXSTP_1,
USB_RXSTP_TXSTP_2, USB_RXSTP_TXSTP_3, USB_RXSTP_TXSTP_4,
USB_RXSTP_TXSTP_5, USB_RXSTP_TXSTP_6, USB_RXSTP_TXSTP_7,
USB_STALL0_STALL_0, USB_STALL0_STALL_1, USB_STALL0_STALL_2,
USB_STALL0_STALL_3, USB_STALL0_STALL_4, USB_STALL0_STALL_5,
USB_STALL0_STALL_6, USB_STALL0_STALL_7, USB_STALL1_0, USB_STALL1_1,
USB_STALL1_2, USB_STALL1_3, USB_STALL1_4, USB_STALL1_5, USB_STALL1_6,
USB_STALL1_7, USB_SUSPEND, USB_TRFAIL0_TRFAIL_0, USB_TRFAIL0_TRFAIL_1,
USB_TRFAIL0_TRFAIL_2, USB_TRFAIL0_TRFAIL_3, USB_TRFAIL0_TRFAIL_4,
USB_TRFAIL0_TRFAIL_5, USB_TRFAIL0_TRFAIL_6, USB_TRFAIL0_TRFAIL_7,
USB_TRFAIL1_PERR_0, USB_TRFAIL1_PERR_1, USB_TRFAIL1_PERR_2,
USB_TRFAIL1_PERR_3, USB_TRFAIL1_PERR_4, USB_TRFAIL1_PERR_5,
USB_TRFAIL1_PERR_6, USB_TRFAIL1_PERR_7, USB_UPRSM, USB_WAKEUP */
void USB_0_Handler(void) {
uint32_t int_status = USB->DEVICE.INTFLAG.reg & USB->DEVICE.INTENSET.reg;
/*------------- Interrupt Processing -------------*/
// SAMD doesn't distinguish between Suspend and Disconnect state.
// Both condition will cause SUSPEND interrupt triggered.
// To prevent being triggered when D+/D- are not stable, SUSPEND interrupt is only
// enabled when we received SET_ADDRESS request and cleared on Bus Reset
if ( int_status & USB_DEVICE_INTFLAG_SUSPEND )
{
USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_SUSPEND;
// Enable wakeup interrupt
USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_WAKEUP; // clear pending
USB->DEVICE.INTENSET.reg = USB_DEVICE_INTFLAG_WAKEUP;
dcd_event_bus_signal(0, DCD_EVENT_SUSPEND, true);
}
// Wakeup interrupt is only enabled when we got suspended.
// Wakeup interrupt will disable itself
if ( int_status & USB_DEVICE_INTFLAG_WAKEUP )
{
USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_WAKEUP;
// disable wakeup interrupt itself
USB->DEVICE.INTENCLR.reg = USB_DEVICE_INTFLAG_WAKEUP;
dcd_event_bus_signal(0, DCD_EVENT_RESUME, true);
}
if ( int_status & USB_DEVICE_INTFLAG_EORST )
{
USB->DEVICE.INTFLAG.reg = USB_DEVICE_INTFLAG_EORST;
// Disable both suspend and wakeup interrupt
USB->DEVICE.INTENCLR.reg = USB_DEVICE_INTFLAG_WAKEUP | USB_DEVICE_INTFLAG_SUSPEND;
bus_reset();
dcd_event_bus_signal(0, DCD_EVENT_BUS_RESET, true);
}
// Setup packet received.
maybe_handle_setup_packet();
}
