static void debounce(unsigned long data)
{
volatile unsigned char reg_a,reg_c,xctrl_a;
reg_c = CMOS_READ(RTC_INTR_FLAGS);
CMOS_WRITE(reg_a | DS_REGA_DV0, RTC_REG_A);
wbflush();
xctrl_a = CMOS_READ(DS_B1_XCTRL4A);
if( (xctrl_a & DS_XCTRL4A_IFS ) || ( reg_c & RTC_IRQF ) ) {
/* Interrupt still being sent. */
debounce_timer.expires = jiffies + 50;
add_timer(&debounce_timer);
/* clear interrupt source */
CMOS_WRITE( xctrl_a & ~DS_XCTRL4A_IFS, DS_B1_XCTRL4A);
CMOS_WRITE(reg_a & ~DS_REGA_DV0, RTC_REG_A);
return;
}
CMOS_WRITE(reg_a & ~DS_REGA_DV0, RTC_REG_A);
if (has_paniced)
ArcReboot();
enable_irq(MACEISA_RTC_IRQ);
}
static void debounce(unsigned long data)
{
del_timer(&debounce_timer);
if (ioc_icontrol->istat1 & 2) { /* Interrupt still being sent. */
debounce_timer.expires = jiffies + 5; /* 0.05s */
add_timer(&debounce_timer);
hpc3mregs->panel = 0xf3;
return;
}
if (has_paniced)
ArcReboot();
enable_irq(9);
}
static void ip32_machine_restart(char *cmd)
{
if (shuting_down)
ip32_machine_power_off();
ArcReboot();
}
/* XXX How to pass the reboot command to the firmware??? */
void machine_restart(char *command)
{
if (shuting_down)
machine_power_off();
ArcReboot();
}
VOID
HalReturnToFirmware(
IN FIRMWARE_REENTRY Routine
)
/*++
Routine Description:
This function returns control to the specified firmware routine.
In most cases it generates a soft reset.
Arguments:
Routine - Supplies a value indicating which firmware routine to invoke.
Return Value:
Does not return.
--*/
{
KIRQL OldIrql;
UCHAR DataByte;
//
// Disable Interrupts.
//
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
//
// Case on the type of return.
//
switch (Routine) {
case HalHaltRoutine:
//
// Hang looping.
//
// power off asked by DCU/IDC (power - fan or ... failure)
if (((ULONG)(((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine) != (ULONG)-1) &&
(((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipHalInfo == 1))
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine(
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipContext
);
for (;;) {}
case HalPowerDownRoutine:
// power off always done by DCU
if ((ULONG)(((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine) != (ULONG)-1)
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine(
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipContext
);
//
// PowerOff is done by the SNI machines by writing the Power_Off bit to the machine control register ...
//
if (HalpIsTowerPci){
WRITE_REGISTER_ULONG((PULONG) PCI_TOWER_DCU_CONTROL, DC_POWEROFF);
}else{
WRITE_REGISTER_UCHAR((PUCHAR) PCI_MCR_ADDR, PCI_MCR_POWEROFF);
}
for (;;) {} // hang looping
case HalRestartRoutine:
case HalRebootRoutine:
case HalInteractiveModeRoutine:
// power off asked by DCU/IDC (power - fan or ... failure)
if (((ULONG)(((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine) != (ULONG)-1) &&
(((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipHalInfo == 1))
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipRoutine(
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->EipContext
);
if (HalpIsMulti) {
ULONG Mask,i;
for (i=0;i<HalpIsMulti;i++)
if (((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->ActiveProcessor[PCR->Number])
Mask |= 1<<i;
Mask = Mask & ~(PCR->SetMember);
#if DBGG
DbgPrint("Send message RESTART to maskcpu = %x \n",Mask);
#endif
HalpRequestIpi(Mask,MPA_RESTART_MESSAGE);
//
// if this is not the Boot CPU, we call a special Firmware entry to stop it
//
//
// remove this processor from the list of active processors
//
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->ActiveProcessor[PCR->Number]=0;
if (PCR->Number ) {
#if DBGG
DbgPrint(" Reinit slave %x \n", ((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->reinit_slave);
#endif
((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->reinit_slave();
} else HalpBootCpuRestart();
}
HalpColumn = 0;HalpRow = 0; // if we already were in VGA mode
HalDisplayString("\n");
HalpClearVGADisplay();
HalDisplayString("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
HalDisplayString(" ���������������������������������������ͻ\n");
HalDisplayString(" � �\n");
HalDisplayString(" � Restart in Progress �\n");
HalDisplayString(" � �\n");
HalDisplayString(" ���������������������������������������ͼ\n");
DataByte = READ_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl);
((PNMI_EXTENDED_CONTROL) &DataByte)->BusReset = 1;
WRITE_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl,
DataByte
);
KeStallExecutionProcessor(10000);
((PNMI_EXTENDED_CONTROL) &DataByte)->BusReset = 0;
WRITE_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl,
DataByte
);
ArcReboot();
for (;;) ;
default:
DbgPrint("HalReturnToFirmware invalid argument\n");
KeLowerIrql(OldIrql);
DbgBreakPoint();
}
}
VOID
HalpBootCpuRestart(
VOID
)
/*++
Routine Description:
This function returns control to the firmware Arcreboot routine.
it waits until all other cpu's have beet shut down.
this code is executed only on the boot cpu
Arguments:
None
Return Value:
Does not return.
--*/
{
UCHAR DataByte;
ULONG cpt;
HalpColumn = 0;HalpRow = 0; // if we already were in VGA mode
HalDisplayString("\n");
HalpClearVGADisplay();
HalDisplayString("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
HalDisplayString(" ���������������������������������������ͻ\n");
HalDisplayString(" � �\n");
HalDisplayString(" � Restart in Progress �\n");
HalDisplayString(" � �\n");
HalDisplayString(" ���������������������������������������ͼ\n");
cpt = 0;
while(*(PULONG)(& (((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->ActiveProcessor[0]) )) {
KeStallExecutionProcessor(500000);
++cpt;if (cpt == 20) break;
}
//
// if there are still ssome processors active, we do a reset of the entire machine
//
if (*(PULONG)(& (((SNI_PRIVATE_VECTOR *)(SYSTEM_BLOCK->VendorVector))->ActiveProcessor[0]) )) {
#if DBG
DbgPrint(" Some processors did not answer . Reset machine started. \n");
#endif
if (HalpIsTowerPci) {
WRITE_REGISTER_ULONG((PULONG) PCI_TOWER_DCU_CONTROL, DC_SWRESET);
}else {
WRITE_REGISTER_UCHAR((PUCHAR) PCI_MCR_ADDR, PCI_MCR_SOFTRESET);
}
} else {
#if DBG
DbgPrint("Reboot started \n");
#endif
}
DataByte = READ_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl);
((PNMI_EXTENDED_CONTROL) &DataByte)->BusReset = 1;
WRITE_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl,
DataByte
);
KeStallExecutionProcessor(10000);
((PNMI_EXTENDED_CONTROL) &DataByte)->BusReset = 0;
WRITE_REGISTER_UCHAR(
&((PEISA_CONTROL) HalpOnboardControlBase)->ExtendedNmiResetControl,
DataByte
);
ArcReboot();
for (;;) ;
}
