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/*
*
* Copyright (c) 1994 FirePower Systems Inc.
* Copyright (c) 1995 FirePower Systems, Inc.
*
* $RCSfile: vrrstart.c $
* $Revision: 1.7 $
* $Date: 1996/04/15 02:55:36 $
* $Locker: $
*
*
* Module Name:
* vrrstart.c
*
* Author:
* Shin Iwamoto at FirePower Systems Inc.
*
* History:
* 16-Jun-94 Shin Iwamoto at FirePower Systems Inc.
* Changed the property getting code using get_str_prop()
* in VrGetSystemId().
* 14-Jun-94 Shin Iwamoto at FirePower Systems Inc.
* Added the pointer to SystemId because type mismatch happened.
* 19-May-94 Shin Iwamoto at FirePower Systems Inc.
* Added some comments.
* 13-May-94 Shin Iwamoto at FirePower Systems Inc.
* Added jump-logic to the restart address in VrRestart().
* Added VrRestartInitialize().
* 12-May-94 Shin Iwamoto at FirePower Systems Inc.
* Created.
*
*/
#include "veneer.h"
//
// Static data.
//
STATIC SYSTEM_ID SystemId;
/*
* Name: VrEnterInteractiveMode
*
* Description:
* This function terminates the executing program and enters
* interactive mode.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrEnterInteractiveMode(
VOID
)
{
(VOID)OFEnter();
}
/*
* Name: VrGetSystemId
*
* Description:
* This function returns a pointer to a system identification
* structure that contains information used to uniquely identify
* each system.
*
* Arguments:
* None.
*
* Return Value:
* The 16-byte system identification structure is returned.
*
*/
PSYSTEM_ID
VrGetSystemId(
VOID
)
{
phandle PHandle;
PCHAR Property;
PSYSTEM_ID PSystemId = &SystemId;
if ((LONG)(PHandle = OFFinddevice("/")) == -1) {
fatal("Veneer: cannot find the root node in Open Firmware.\n");
}
if ((Property = get_str_prop(PHandle, "name", NOALLOC)) == (PCHAR)NULL) {
fatal("Veneer: cannot get the name property for the root node.\n");
}
bcopy(Property, SystemId.VendorId, 8);
if ((Property = get_str_prop(PHandle, "id", NOALLOC)) == (PCHAR)NULL) {
fatal("Veneer: cannot get the name property for the root node.\n");
}
bcopy(Property, SystemId.ProductId, 8);
return PSystemId;
}
/*
* Name: VrPowerDown
*
* Description:
* This function is identical to the VrHalt() with the additional
* feature that, the power to a system is removed if the system is
* equipped so.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrPowerDown(VOID)
{
// XXX - This must use the HALT interface; see the PPC binding.
OFExit();
}
/*
* Name: VrReboot
*
* Description:
* This function reboots the system with the same parameters used
* for the previous system load sequence. If the parameters cannot
* be reproduced, then the default system load sequence is performed.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrReboot(
VOID
)
{
// XXXX
// Make sure that this funciton reboots the system with the same
// parameters used for the previous system load sequence. If the
// parameters cannot be reporduced, then the default system load
// sequence is performed.
(VOID)OFBoot((PCHAR)NULL);
}
/*
* Name: VrRestart
*
* Description:
* This function performs the equivalent of a power-on reset.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrRestart(
VOID
)
{
PRESTART_BLOCK PRestartBlock;
//
// Detect the presence of a valid Restart Block
//
PRestartBlock = SYSTEM_BLOCK->RestartBlock;
while (PRestartBlock != (PRESTART_BLOCK)NULL) {
if (PRestartBlock->Signature == RSTB_SIGNATURE &&
(PRestartBlock->Version == ARC_VERSION) &&
(PRestartBlock->Revision == ARC_REVISION)) {
break;
}
PRestartBlock = PRestartBlock->NextRestartBlock;
}
//
// Perform a normal power-on sequence if a valid RestartBlock
// is not found.
//
if (PRestartBlock == (PRESTART_BLOCK)NULL) {
(VOID)OFBoot((PCHAR)NULL);
}
//
// Reboot the system.
//
//
// Goto the RestartAddress, not return;
//
(VOID)(*(VOID (*)())(PRestartBlock->RestartAddress))();
}
/*
* Name: VrHalt
*
* Description:
* This function exits the program.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrHalt(
VOID
)
{
(VOID)OFExit();
}
/*
* Name: VrRestartInitialize
*
* Description:
* This function initializes restart routine addresses in the firmware
* transfer vector.
*
* Arguments:
* None.
*
* Return Value:
* None.
*
*/
VOID
VrRestartInitialize(
VOID
)
{
debug(VRDBG_ENTRY, "VrRestartInitialize BEGIN....\n");
//
// Initialize Restart routine addresses in the firmware transfer vector.
//
(PARC_INTERACTIVE_MODE_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[InteractiveModeRoutine] =
VrEnterInteractiveMode;
(PARC_GET_SYSTEM_ID_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[GetSystemIdRoutine] = VrGetSystemId;
(PARC_POWERDOWN_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[PowerDownRoutine] = VrPowerDown;
(PARC_REBOOT_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[RebootRoutine] = VrReboot;
(PARC_RESTART_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[RestartRoutine] = VrRestart;
(PARC_HALT_ROUTINE)
SYSTEM_BLOCK->FirmwareVector[HaltRoutine] = VrHalt;
debug(VRDBG_ENTRY, "VrRestartInitialize ....END\n");
}
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