Eljakim/amlogic
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s922x works

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This commit is contained in:
Eljakim Herrewijnen
2024-04-28 21:56:17 +02:00
parent 24b535bc7e
commit ecfecf5a03
6 changed files with 211 additions and 18 deletions
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14
source/bootrom_emulator/emulator.py
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@@ -12,7 +12,7 @@ from amlogic_rom_db import *
ENTRY_POINT = 0xffff0000
STACK_ADDRESS = 0xfffe3800
FASTBOOT_CMD_HANDLER = 0xffff9758
# FASTBOOT_CMD_HANDLER = 0xffff9758
TEST_OFFSET = 0xfffa0000 + 0x8000
TEST_REQ_BUFFER = TEST_OFFSET + 0x800
TEST_CONTEXT_BUFFER = TEST_OFFSET + 0x9000
@@ -26,15 +26,16 @@ class Amlogic_Emulator(ARM64UC_Emulator):
Amlogic bootrom emulator.
'''
super().__init__(True)
self.device_offsets = amlogic_rom_db[device]
self.file = self.device_offsets['path']
self.logger = setup_logger("GSCEmulator")
self.logger.setLevel(logging.DEBUG)
self.debug = debug
self.bootrom = open(file, 'rb').read()
self.bootrom = open(self.file, 'rb').read()
self.uc = Uc(UC_ARCH_ARM64, UC_MODE_LITTLE_ENDIAN)
self.sc = ShellcodeCrafterARM64(None, None)
self.device_offsets = amlogic_rom_db[device]
self.setup_memory()
self.setup_registers()
self.setup_hooks()
@@ -57,7 +58,7 @@ class Amlogic_Emulator(ARM64UC_Emulator):
return bytes(self.uc.mem_read(address, size))
def apply_patches(self):
self.write(self.device_offsets['fastboot_response'], self.sc.ret_ins)
self.write(self.device_offsets['fastboot_tx_write'], self.sc.ret_ins)
self.write(self.device_offsets['usb_ep_queue'], self.sc.ret_ins)
def setup_memory(self):
@@ -242,6 +243,7 @@ class Amlogic_Emulator(ARM64UC_Emulator):
'''
if self.enable_trace:
self.pc_trace.append(hex(self.pc))
return
# Reset expects value in DRAM
if self.pc == 0xffff00b0:
self.write_ptr(0xff800228, uc.reg_read(UC_ARM64_REG_X1))
@@ -330,9 +332,9 @@ class Amlogic_Emulator(ARM64UC_Emulator):
hexdump(em.read(em.X0, em.X1))
# em.uc.emu_stop()
return True
self.uc.hook_add(UC_HOOK_CODE, _hook_fastboot_tx_write, self, self.device_offsets['fastboot_response'], self.device_offsets['fastboot_response'] + 1)
self.uc.hook_add(UC_HOOK_CODE, _hook_fastboot_tx_write, self, self.device_offsets['fastboot_tx_write'], self.device_offsets['fastboot_tx_write'] + 1)
self.pc = FASTBOOT_CMD_HANDLER
self.pc = self.device_offsets['FASTBOOT_CMD_HANDLER']
self.sp = STACK_ADDRESS
# Run