2019-07-22 07:43:56 +00:00
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#!/usr/bin/env python3
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2019-07-28 08:16:05 +00:00
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import patch_common
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from os import path
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import shutil
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import os
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import struct
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src, cleanup = patch_common.get_src(desc='''
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Boot the Mac mini. Works on Mac OS ROM v6.7 and later (Mac OS 9.1, late '01).
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First, patches the boot script to (a) add PowerMac10,1/2 to the COMPATIBLE tag,
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(b) pretend that the machine is a Cube and (c) add a prim-info property to the
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PMU device. Second, patches the NanoKernel to prevent the CPU Plugin from
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hanging when a THRM register access silently fails. Third, if necessary, patches
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the Kauai ATA driver into old ROMs (pre-9.1).
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''')
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def sign_extend(value, bits):
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sign_bit = 1 << (bits - 1)
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return (value & (sign_bit - 1)) - (value & sign_bit)
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def patch_nk_proc_table(orig):
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try:
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code = bytearray(orig)
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# find the processor flags table, and make our glorious G4 known...
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# our reference point is the ConfigInfo-tyle 601 info, which comes right after
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tbl = code.index(b'\x00\x00\x10\x00\x00\x00\x80\x00\x00\x00\x80\x00\x00\x20\x00\x20\x00\x01\x00\x40\x00\x40\x00\x20\x00\x20\x00\x20\x00\x08\x00\x08\x01\x00\x00\x02')
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num_entries = 0
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for i in reversed(range(0, tbl, 4)):
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if code[i] and code[i+1]:
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break
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num_entries += 1
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assert num_entries == 32
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tbl -= (1+1+4) * num_entries
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print('NK PowerCall table patch: location @', hex(tbl))
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pvr = 16 + 3 # 0x8003
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code[tbl + pvr] = 0x23 # upper nib means use NAP bit, lower nib I can't remember
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tbl += num_entries
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code[tbl + pvr] = 2 # HID0_NHR_and_sleep
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tbl += num_entries
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struct.pack_into('>L', code, tbl + 4*pvr, 0x1F) # hasL2CR hasPLRUL1 hasTAU hasVMX hasMSSregs
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return bytes(code)
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except:
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print('NK PowerCall table patch: patch failed')
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return orig
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# On the 7447a (or something), accesses to the THRM registers fail silently,
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# causing the CPU Plugin to hang when asked to get the temp. Patch the NK to
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# test for a non-THRM CPU, and return an error in this case. (The NK is involved
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# because it invokes the CPUP fragment in supervisor mode in response to an
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# MPCpuPlugin call.)
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def patch_nk_mpcpuplugin(orig):
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try:
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# For picking apart PPC stuff, turn it into a list of longs...
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while len(orig) % 4: orig.append(b'\0') # first ensure 4-aligned
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code = [x for (x,) in struct.iter_unpack('>L', orig)]
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# find syscall dispatch routine
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for i in range(3, len(code)):
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if code[i] == 0x92E80020: # stw r23, 0x20(r8)
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if code[i-1] == 0x92E90020: # stw r23, 0x20(r9)
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i -= 1 # ignore this annoying instruction
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if code[i-3] >> 16 == 0x3EE0 and code[i-2] >> 16 == 0x62F7 and code[i-1] == 0x7EF7CA14:
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# lis r23, HI; ori r23, r23, LO; add r23, r23, r25
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mpdisp = ((code[i-3] & 0xFFFF) << 16) + (code[i-2] & 0xFFFF)
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if code[mpdisp//4] == 0x7C3042A6: continue # FP hander has same offset in diff table
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print('NK MPCpuPlugin patch: MPDispatch @', hex(mpdisp))
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break
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elif code[i-1] >> 16 == 0x3AF9: # addi r23, r25, LO
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mpdisp = code[i-1] & 0xFFFF
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if code[mpdisp//4] == 0x7C3042A6: continue # FP hander has same offset in diff table
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print('NK MPCpuPlugin patch: MPDispatch @', hex(mpdisp))
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break
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# find routine's table
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for i in range(mpdisp//4, len(code)):
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if code[i] & 0xFC000003 == 0x48000000: # short unconditional non-link jump to end of table
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mpcnt = (code[i] & 0x3FFFFFF) // 4 - 1
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mptab = (i + 1) * 4
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print('NK MPCpuPlugin patch: MPDispatchTable @', hex(mptab))
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break
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# MP calls invoked via "li r0, NUMBER; sc", and this is that number:
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kMPCPUPlugin = 46
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if mpcnt > kMPCPUPlugin:
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mpcpuplugin = code[mptab//4 + kMPCPUPlugin] + 4*kMPCPUPlugin # weird table
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print('NK MPCpuPlugin patch: MPCpuPlugin @', hex(mpcpuplugin))
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for i in range(mpcpuplugin//4, len(code)):
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if code[i] & 0xFC000003 == 0x48000000: # short unconditional non-link jump to call return routine
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returnproc = sign_extend(code[i] & 0x3FFFFFF, 26) + i*4
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print('NK MPCpuPlugin patch: return proc @', hex(returnproc))
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break
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# insert our new implementation into the table
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code[mptab//4 + kMPCPUPlugin] = 4*len(code) - 4*kMPCPUPlugin
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print('NK MPCpuPlugin patch: new MPCpuPlugin @', hex(len(code)*4))
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# place our new implementation at the end of the NK
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code.extend([
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0x2C03000C, # cmpwi r3, kGetProcessorTemp
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0x40820020, # bne passthru
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0x7D1F42A6, # mfpvr r8
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0x5508001E, # rlwinm r8, r8, 0, 0xFFFF0000
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0x3D208003, # lis r9, 0x8003
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0x7C084800, # cmpw r8, r9
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0x4082000C, # bne passthru
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0x3860CD2B, # li r3, kCantReportProcessorTemperatureErr
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# place a return path branch here
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# place a passthru branch here
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])
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# add those two unconditional branches
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for targ in [returnproc, mpcpuplugin]:
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inst = targ - len(code)*4
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inst = inst & 0x3FFFFFF
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inst |= 0x48000000
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code.append(inst)
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return b''.join(struct.pack('>L', x) for x in code)
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except:
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print('NK MPCpuPlugin patch: patch failed')
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return orig
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2019-08-02 02:21:17 +00:00
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# iBook G4 000000ff 00000060 00003e80 00017fb5 0202d607 00000000 00011300 46000220
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# Power Mac G4 MDD 000000ff 0000002c 00030d40 0001e705 00003400 00000000 0000260d 46000270
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# ^^^^^^^^ public PM features
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# ^^^^^^^^ private PM features
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# ^^^^ batt count
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# FROM THE DARWIN SOURCES:
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# // PUBLIC power management features
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# // NOTE: this is a direct port from classic, some of these bits
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# // are obsolete but are included for completeness
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# enum {
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# kPMHasWakeupTimerMask = (1<<0), // 1=wake timer is supported
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# kPMHasSharedModemPortMask = (1<<1), // Not used
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# kPMHasProcessorCyclingMask = (1<<2), // 1=processor cycling supported
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# kPMMustProcessorCycleMask = (1<<3), // Not used
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# kPMHasReducedSpeedMask = (1<<4), // 1=supports reduced processor speed
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# kPMDynamicSpeedChangeMask = (1<<5), // 1=supports changing processor speed on the fly
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# kPMHasSCSIDiskModeMask = (1<<6), // 1=supports using machine as SCSI drive
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# kPMCanGetBatteryTimeMask = (1<<7), // 1=battery time can be calculated
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# kPMCanWakeupOnRingMask = (1<<8), // 1=machine can wake on modem ring
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# kPMHasDimmingSupportMask = (1<<9), // 1=has monitor dimming support
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# kPMHasStartupTimerMask = (1<<10), // 1=can program startup timer
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# kPMHasChargeNotificationMask = (1<<11), // 1=client can determine charger status/get notifications
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# kPMHasDimSuspendSupportMask = (1<<12), // 1=can dim diplay to DPMS ('off') state
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# kPMHasWakeOnNetActivityMask = (1<<13), // 1=supports waking upon receipt of net packet
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# kPMHasWakeOnLidMask = (1<<14), // 1=can wake upon lid/case opening
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# kPMCanPowerOffPCIBusMask = (1<<15), // 1=can remove power from PCI bus on sleep
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# kPMHasDeepSleepMask = (1<<16), // 1=supports deep (hibernation) sleep
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# kPMHasSleepMask = (1<<17), // 1=machine support low power sleep (ala powerbooks)
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# kPMSupportsServerModeAPIMask = (1<<18), // 1=supports reboot on AC resume for unexpected power loss
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# kPMHasUPSIntegrationMask = (1<<19) // 1=supports incorporating UPS devices into power source calcs
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# };
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# // PRIVATE power management features
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# // NOTE: this is a direct port from classic, some of these bits
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# // are obsolete but are included for completeness.
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# enum {
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# kPMHasExtdBattInfoMask = (1<<0), // Not used
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# kPMHasBatteryIDMask = (1<<1), // Not used
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# kPMCanSwitchPowerMask = (1<<2), // Not used
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# kPMHasCelsiusCyclingMask = (1<<3), // Not used
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# kPMHasBatteryPredictionMask = (1<<4), // Not used
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# kPMHasPowerLevelsMask = (1<<5), // Not used
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# kPMHasSleepCPUSpeedMask = (1<<6), // Not used
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# kPMHasBtnIntHandlersMask = (1<<7), // 1=supports individual button interrupt handlers
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# kPMHasSCSITermPowerMask = (1<<8), // 1=supports SCSI termination power switch
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# kPMHasADBButtonHandlersMask = (1<<9), // 1=supports button handlers via ADB
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# kPMHasICTControlMask = (1<<10), // 1=supports ICT control
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# kPMHasLegacyDesktopSleepMask = (1<<11), // 1=supports 'doze' style sleep
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# kPMHasDeepIdleMask = (1<<12), // 1=supports Idle2 in hardware
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# kPMOpenLidPreventsSleepMask = (1<<13), // 1=open case prevent machine from sleeping
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# kPMClosedLidCausesSleepMask = (1<<14), // 1=case closed (clamshell closed) causes sleep
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# kPMHasFanControlMask = (1<<15), // 1=machine has software-programmable fan/thermostat controls
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# kPMHasThermalControlMask = (1<<16), // 1=machine supports thermal monitoring
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# kPMHasVStepSpeedChangeMask = (1<<17), // 1=machine supports processor voltage/clock change
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# kPMEnvironEventsPolledMask = (1<<18) // 1=machine doesn't generate pmu env ints, we must poll instead
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# };
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# // DEFAULT public and private features for machines whose device tree
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# // does NOT contain this information (pre-Core99).
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# // For Cuda-based Desktops
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# #define kStdDesktopPMFeatures kPMHasWakeupTimerMask |\
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# kPMHasProcessorCyclingMask |\
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# kPMHasDimmingSupportMask |\
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# kPMHasStartupTimerMask |\
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# kPMSupportsServerModeAPIMask |\
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# kPMHasUPSIntegrationMask
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# #define kStdDesktopPrivPMFeatures kPMHasExtdBattInfoMask |\
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# kPMHasICTControlMask |\
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# kPMHasLegacyDesktopSleepMask
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# #define kStdDesktopNumBatteries 0
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# // For Wallstreet (PowerBook G3 Series 1998)
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# #define kWallstreetPMFeatures kPMHasWakeupTimerMask |\
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# kPMHasProcessorCyclingMask |\
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# kPMHasReducedSpeedMask |\
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# kPMDynamicSpeedChangeMask |\
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# kPMHasSCSIDiskModeMask |\
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# kPMCanGetBatteryTimeMask |\
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# kPMHasDimmingSupportMask |\
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# kPMHasChargeNotificationMask |\
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# kPMHasDimSuspendSupportMask |\
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# kPMHasSleepMask
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# #define kWallstreetPrivPMFeatures kPMHasExtdBattInfoMask |\
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# kPMHasBatteryIDMask |\
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# kPMCanSwitchPowerMask |\
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# kPMHasADBButtonHandlersMask |\
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# kPMHasSCSITermPowerMask |\
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# kPMHasICTControlMask |\
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# kPMClosedLidCausesSleepMask |\
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# kPMEnvironEventsPolledMask
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# #define kStdPowerBookPMFeatures kWallstreetPMFeatures
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# #define kStdPowerBookPrivPMFeatures kWallstreetPrivPMFeatures
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# #define kStdPowerBookNumBatteries 2
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# // For 101 (PowerBook G3 Series 1999)
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# #define k101PMFeatures kPMHasWakeupTimerMask |\
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# kPMHasProcessorCyclingMask |\
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# kPMHasReducedSpeedMask |\
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# kPMDynamicSpeedChangeMask |\
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# kPMHasSCSIDiskModeMask |\
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# kPMCanGetBatteryTimeMask |\
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# kPMHasDimmingSupportMask |\
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# kPMHasChargeNotificationMask |\
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# kPMHasDimSuspendSupportMask |\
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# kPMHasSleepMask |\
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# kPMHasUPSIntegrationMask
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# #define k101PrivPMFeatures kPMHasExtdBattInfoMask |\
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# kPMHasBatteryIDMask |\
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# kPMCanSwitchPowerMask |\
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# kPMHasADBButtonHandlersMask |\
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# kPMHasSCSITermPowerMask |\
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# kPMHasICTControlMask |\
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# kPMClosedLidCausesSleepMask |\
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# kPMEnvironEventsPolledMask
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# #define IOPMNoErr 0 // normal return
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# // returned by powerStateWillChange and powerStateDidChange:
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# #define IOPMAckImplied 0 // acknowledgement of power state change is implied
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# #define IOPMWillAckLater 1 // acknowledgement of power state change will come later
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# // returned by requestDomainState
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# #define IOPMBadSpecification 4 // unrecognized specification parameter
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# #define IOPMNoSuchState 5 // no power state matches search specification
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# #define IOPMCannotRaisePower 6 // a device cannot change its power for some reason
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# // returned by changeStateTo
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# #define IOPMParameterError 7 // requested state doesn't exist
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# #define IOPMNotYetInitialized 8 // device not yet fully hooked into power management "graph"
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2019-07-28 08:16:05 +00:00
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FORTH = r'''
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\ Hacks for Mac mini, should not affect other machines
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" /" select-dev " model" active-package get-package-property 0= if
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decode-string 2swap 2drop 2dup " PowerMac10,1" $= -rot " PowerMac10,2" $= or if
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\ Pretend to be a Power Mac G4 Cube
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" /" select-dev
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" PowerMac5,1" encode-string 2dup
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" model" property
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" MacRISC" encode-string encode+
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" MacRISC2" encode-string encode+
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" Power Macintosh" encode-string encode+
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" compatible" property
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device-end
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\ Pretend to have a PowerPC 7445/55, actual PVR unaffected
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" /cpus/PowerPC,G4@0" select-dev
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80010201 encode-int " cpu-version" property
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device-end
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\ Set prim-info (for PwrMgr v2 in NativePowerMgrLib)
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" via-pmu/power-mgt" select-dev
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000000ff encode-int
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0000002c encode-int encode+
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00030d40 encode-int encode+
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2019-08-02 02:21:17 +00:00
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0001e705 encode-int encode+ \ public features
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00001400 encode-int encode+ \ private features
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2019-07-28 08:16:05 +00:00
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00000000 encode-int encode+
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0000260d encode-int encode+
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46000270 encode-int encode+
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" prim-info" property
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device-end
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then
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then \ End of mini hacks
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'''.strip()
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def patch_booter(text):
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text = text.replace('<COMPATIBLE>\n', '<COMPATIBLE>\nPowerMac10,1 PowerMac10,2 ', 1)
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text = text.replace('<BOOT-SCRIPT>', '<BOOT-SCRIPT>\n'+FORTH, 1)
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return text
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for (parent, folders, files) in os.walk(src):
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folders.sort(); files.sort() # make it kinda deterministic
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for filename in files:
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2019-09-01 00:45:21 +00:00
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full = path.join(parent, filename)
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2019-07-28 08:16:05 +00:00
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if filename.startswith('NanoKernel'):
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code = open(full, 'rb').read()
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code = patch_nk_proc_table(code)
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code = patch_nk_mpcpuplugin(code)
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open(full, 'wb').write(code)
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elif filename == 'Bootscript':
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text = open(full).read()
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text = patch_booter(text)
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open(full, 'w').write(text)
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elif filename == 'Parcelfile':
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2019-09-01 00:45:21 +00:00
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if not path.exists(path.join(parent, 'kauai-ata.pef')):
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2019-07-28 08:16:05 +00:00
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print('ROM lacks Kauai ATA driver (< ROM 9.1), patching it in') # the only known version
|
2019-09-01 00:45:21 +00:00
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shutil.copy(path.join(path.dirname(__file__), 'kauai-ata.pef'), parent)
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2019-07-28 08:16:05 +00:00
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with open(full, 'a') as f:
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f.write('prop flags=0x0000c a=kauai-ata b=ata\n')
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f.write('\tndrv flags=0x00006 name=driver,AAPL,MacOS,PowerPC src=kauai-ata.pef.lzss\n\n')
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2019-09-01 00:45:21 +00:00
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if path.exists(path.join(parent, 'MotherBoardHAL.pef')):
|
2019-07-28 08:16:05 +00:00
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print('ROM has MotherBoardHAL (< ROM 6.7), therefore unlikely to work')
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elif filename == 'cicn_-20020':
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print('Patching Happy Mac as tradition dictates. Credit to MacTron:')
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print('http://macos9lives.com/smforum/index.php/topic,4354.msg30328.html#msg30328')
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|
shutil.copyfile(path.join(path.dirname(__file__), 'mactron.cicn'), full)
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cleanup()
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